U.S. patent application number 16/241950 was filed with the patent office on 2019-08-15 for combined sump pump with a backup pump structure.
The applicant listed for this patent is GP Enterprises Co., Ltd. Invention is credited to Xian Wang.
Application Number | 20190249674 16/241950 |
Document ID | / |
Family ID | 62125109 |
Filed Date | 2019-08-15 |
United States Patent
Application |
20190249674 |
Kind Code |
A1 |
Wang; Xian |
August 15, 2019 |
COMBINED SUMP PUMP WITH A BACKUP PUMP STRUCTURE
Abstract
A combined sump pump with a backup pump structure includes a
primary pump, a check valve device for the primary pump, a pipeline
connection device arranged on one side of the primary pump and the
backup pump, a backup pump, and a check valve device for the backup
pump; the primary pump and the pipeline connection device are
connected by the check valve of the primary pump, the backup pump
and the pipeline connection device are connected by the check valve
of the backup pump; the primary pump is equipped with a primary
pump float switch, a primary pump float ball is provided under the
primary pump float switch, a backup pump hoop is provided on the
pipeline connection device, a backup pump float switch is provided
on the backup pump hoop, and a backup pump float ball is provided
under the backup pump float switch.
Inventors: |
Wang; Xian; (Suzhou,
CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
GP Enterprises Co., Ltd |
Suzhou |
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CN |
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|
Family ID: |
62125109 |
Appl. No.: |
16/241950 |
Filed: |
January 7, 2019 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
PCT/CN2018/076282 |
Feb 11, 2018 |
|
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16241950 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
F04D 13/06 20130101;
F04D 15/029 20130101; F04D 15/0005 20130101; F04D 13/12 20130101;
F04D 15/0218 20130101; F04D 15/0272 20130101; F04D 13/08 20130101;
F04D 15/0077 20130101 |
International
Class: |
F04D 15/02 20060101
F04D015/02; F04D 13/12 20060101 F04D013/12; F04D 15/00 20060101
F04D015/00; F04D 13/06 20060101 F04D013/06 |
Foreign Application Data
Date |
Code |
Application Number |
Jan 31, 2018 |
CN |
201810094547.0 |
Claims
1. A combined sump pump with a backup pump structure, comprising a
primary pump, a check valve device for the primary pump, a set of
pipeline connection device, a backup pump, and a check valve device
for the backup pump; wherein the pipeline connection device is
arranged on one side of the primary pump and the backup pump;
wherein the primary pump and the pipeline connection device are
connected by the check valve of the primary pump; wherein the
backup pump and the pipeline connection device are connected by the
check valve of the backup pump; wherein the primary pump is
equipped with a primary pump float switch; wherein a primary pump
float ball is provided under the primary pump float switch; wherein
a backup pump hoop is provided on the pipeline connection device;
wherein a backup pump float switch is provided on the backup pump
hoop; and wherein a backup pump float ball is provided under the
backup pump float switch; wherein the check valve device for the
backup pump comprises an elbow pipe, two ends of the elbow pipe are
respectively provided with a backup pump pipe joint and a backup
pump joint; wherein the check valve device for the primary pump
comprises a valve body, two ends of the valve body are respectively
provided with a primary pump joint and a primary pump pressure
joint.
2. The combined sump pump with a backup pump structure according to
claim 1, characterized in that the backup pump comprises a pump
housing, wherein a diffuser is arranged at the lower part of the
pump housing, a DC motor is arranged inside of the pump housing, an
impeller is arranged under the DC motor, and wherein the impeller
is connected to the DC motor and being driven thereby, a skeleton
oil seal is arranged between the impeller and the DC motor, a
flange is disposed on the side of the skeleton oil seal, and an
outlet formed at the top of the pump housing.
3. The combined sump pump with a backup pump structure according to
claim 1, characterized in that a backup pump compression pipe is
provided on the outer wall of the backup pump joint, a backup pump
rubber seal ring is provided on the inner wall of the backup pump
joint, a backup pump metal clip ring is arranged on one side of the
backup pump rubber seal ring and located inside of the elbow pipe,
a valve flapper is arranged inside of the elbow pipe, and a curved
nozzle is arranged on the outer wall of the elbow pipe.
4. The combined sump pump with a backup pump structure according to
claim 1, characterized in that a primary pump compression pipe is
provided on the outer wall of the primary pump connector, a primary
pump rubber seal ring is provided on the inner wall of the primary
pump connector, a primary pump metal clip ring is arranged below
the primary pump rubber seal ring, and a check valve plate is
provided inside of the valve body.
5. The combined sump pump with a backup pump structure according to
claim 1, characterized in that at least one floating ball of the
primary pump is provided.
6. The combined sump pump with a backup pump structure according to
claim 1, characterized in that an internal cavity is arranged
between the DC motor and the pump housing.
7. The combined sump pump with a backup pump structure according to
claim 1, characterized in that the backup pump inlet is higher than
the primary pump inlet.
8. The combined sump pump with a backup pump structure according to
claim 1, characterized in that the backup pump is a type of axial
flow structure or a type of centrifugal structure.
9. The combined sump pump with a backup pump structure according to
claim 1, characterized in that the pipeline connection device being
three-way straight pipes.
10. The combined sump pump with a backup pump structure according
to claim 1, characterized in that the installation position of the
backup pump float switch is higher than the activation water level
of the primary pump float switch.
Description
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] This application is a continuation application of PCT
Application No. PCT/CN2018/076282 filed on Feb. 11, 2018, which
claims priority to Chinese Patent Application No. 201810094547.0
filed on Jan. 31, 2018. The entire contents of all of the above are
incorporated herein by reference.
TECHNICAL FIELD
[0002] The present invention relates to the field of processing and
manufacturing household sump pumps, and more particularly to a
combined sump pump with a new type of backup pump structure.
BACKGROUND OF THE INVENTION
[0003] Domestic sewage or groundwater drains into the basement pit
in North American households is mainly discharged into the sewers
or municipal storm drain through pumps, in the case of failure of
pumps or power outages, the excess water will overflow to flood the
basement to cause big economic losses.
[0004] Integrating a DC motor pump powered by a battery into the
primary pump, during the period of power outage or failure of the
primary pump, the backup pump begins to work as soon as the water
level reaches the backup pump activate point and it prevents water
from flooding damage.
[0005] However, at present, this type of pump on the market is
complex on pipeline connecting, it requires professional plumber to
install at consumers' expense, or consumers do themselves ending at
an unreliable connection, which affects the promotion and use of
combined pumps badly.
SUMMARY OF THE INVENTION
[0006] The main technical problem to be solved by the invention is
to provide a combined sump pump with a new type of backup pump
structure, which is easy for management, cost saving and convenient
for customers to use, install and overhaul.
[0007] In order to solve the above technical problem, the present
invention adopts a technical solution: providing a combined sump
pump with a new type of backup pump structure, which includes: a
primary pump, a check valve device for the primary pump, a set of
pipeline connection device, a backup pump, and a check valve device
for the backup pump; wherein the pipeline connection device is
arranged on one side of the primary pump and the backup pump;
wherein the primary pump and the pipeline connection device are
connected by the check valve of the primary pump; wherein the
backup pump and the pipeline connection device are connected by the
check valve of the backup pump; wherein the primary pump is
equipped with a primary pump float switch; wherein a primary pump
float ball is provided under the primary pump float switch, wherein
a backup pump hoop is provided on the pipeline connection device;
wherein a backup pump float switch is provided on the backup pump
clamp; and wherein a backup pump float ball is provided on the
backup pump float switch; wherein the check valve device for the
backup pump comprises an elbow pipe, two ends of the elbow pipe are
respectively provided with a backup pump pipe joint and a backup
pump joint; wherein the check valve device for the primary pump
comprises a valve body, two ends of the valve body are respectively
provided with a primary pump joint and a primary pump press
joint.
[0008] In a preferred embodiment of the present invention, the
backup pump comprises a pump housing, wherein a diffuser is
arranged at the lower part of the pump housing, a DC motor is
arranged inside of the pump housing, an impeller is arranged under
the DC motor, and wherein the impeller is connected to the DC motor
being driven thereby, a skeleton oil seal is arranged between the
impeller and the DC motor, a flange is disposed on the side of the
skeleton oil seal, and an outlet formed at the top of the pump
housing.
[0009] In a preferred embodiment of the present invention, wherein
a backup pump compression pipe is provided on the outer wall of the
backup pump joint; wherein a backup pump rubber seal ring is
provided on the inner wall of the backup pump joint; a backup pump
metal clip ring is arranged on one side of the backup pump rubber
seal ring and located inside of the elbow pipe, a valve flapper is
arranged inside of the elbow pipe, and a curved nozzle is arranged
on the outer wall of the elbow pipe.
[0010] In a preferred embodiment of the present invention, wherein
a primary pump compression pipe is provided on the outer wall of
the primary pump joint; wherein a primary pump rubber seal ring is
provided on the inner wall of the primary pump joint; with a
primary pump metal clip ring is arranged below the primary pump
rubber seal ring, and a check valve plate is provided inside of the
valve body.
[0011] In a preferred embodiment of the present invention, at least
one floating ball of the primary pump is provided.
[0012] In a preferred embodiment of the present invention, an
internal cavity is arranged between the DC motor and the pump
housing.
[0013] In a preferred embodiment of the present invention, the
backup pump inlet is higher than the primary pump inlet.
[0014] In a preferred embodiment of the present invention, the
backup pump is a type of axial flow structure or a type of
centrifugal structure.
[0015] In a preferred embodiment of the present invention, the
pipeline connection device can be, but is not limited to, three-way
straight pipes.
[0016] In a preferred embodiment of the present invention, the
installation position of the backup pump float switch is higher
than the activation water level of the primary pump float
switch.
[0017] The beneficial effect of the invention is: The present
invention indicates that a combined sump pump with a new type of
backup pump structure has the following advantages: [0018] 1. The
primary pump and the backup pump are directly connected by a
three-way straight pipe or other pipeline connection device, the
various complex pipeline connection devices are molded into a
whole, and the connection parts are integrated into an integrated
part which makes connection more reliable. [0019] 2. The combined
sump pump disclosed by the present invention, the pipeline
installation is simple, and the installation volume of the backup
pump was greatly reduced. [0020] 3. In the backup pump design of
the present invention, the centrifugal impeller is applied in the
axial flow structure, in such, the applying scope of the
centrifugal impeller is expanded, and the problem of the low lift
and the inability to transport sewage media of axial impeller is
resolved, in fact, centrifugal or axial flow structures could be
selected according to different needs. [0021] 4. The primary pump
preferably adopts the twin-float switch which is more convenient to
adjust the water level and to prevent foreign matter from blocking
the float ball. Actually, the single float ball, three or multiple
float ball structures can be selected according to the production
cost and customer needs. [0022] 5. Integrated check valve
structure, easy and reliable connection, while the primary pump or
backup pump are operating, the water will not backflow to another
pump. [0023] 6. The present invention provides a combined sump pump
with a new type of backup pump structure, which is easy for
management, cost saving and convenient for customers to use,
install and overhaul.
BRIEF DESCRIPTION OF THE FIGURES
[0024] In order to more clearly illustrate the technical solutions
in the embodiments of the present invention, the drawings used in
the description of the embodiments will be briefly described below.
Obviously, the drawings in the following description are merely
some embodiments of the present invention. For those who skilled in
the art, other drawings may also be obtained based on these
drawings without paying any creative work. Therein:
[0025] FIG. 1 is a schematic structural view of a preferred
embodiment of the combined sump pump with a new type of backup pump
structure of the present invention;
[0026] FIG. 2 is a side structural schematic diagram of a preferred
embodiment of the combined sump pump with a new type of backup pump
structure of the present invention;
[0027] FIG. 3 is an internal structural schematic diagram of the
backup pump of a preferred embodiment of the combined sump pump
with a new type of backup pump structure of the present
invention;
[0028] FIG. 4 is a structural schematic diagram of the check valve
device for the backup pump of a preferred embodiment of the
combined sump pump with a new type of backup pump structure of the
present invention;
[0029] FIG. 5 is a structural schematic diagram of the check valve
device for the primary pump of a preferred embodiment of the
combined sump pump with a new type of backup pump structure of the
present invention;
[0030] As shown in the figure: 1. Primary pump; 2. Check valve
device for the primary pump; 3. Three-way straight pipe; 4. Backup
pump; 5. Check valve device for the backup pump; 6. Float switch
for the primary pump; 7. Float ball for the primary pump; 8. Backup
pump hoop; 9. Float switch for the backup pump; 10. Float ball for
the backup pump; 41. Pump housing; 42. Diffuser; 43. DC motor; 44.
Impeller; 45. Skeleton oil seal; 46. Flange; 47. Outlet; 48.
Internal cavity; 51. Elbow pipe; 53. Backup pump joint; 54. Backup
pump compression pipe; 55. Backup pump rubber seal ring; 56. Backup
pump metal clip ring; 57. Valve flapper; 58. Curved nozzle; 21.
Valve body; 22. Primary pump joint; 23. Primary pump compression
joint; 25. Primary pump rubber seal ring; 26. Primary pump metal
clip ring; 27. Check valve plate.
DETAILED DESCRIPTION
[0031] The following clearly and completely describes the technical
solution in the embodiment of the invention. Obviously, the
embodiment described is only one part of the embodiment of the
invention and not all the embodiments. Based on the embodiment in
the invention, all other embodiments obtained by the general
technicians in the field without creative labor are within the
scope of protection of the invention.
[0032] See FIG. 1-5. The embodiments of the invention include:
[0033] A combined sump pump with a new type of backup pump
structure, which includes: a primary pump 1, a check valve device
for the primary pump 2, a three-way straight pipe 3, a backup pump
4, and a check valve device for the backup pump 5. The three-way
straight pipe 3 is one of types of pipe connecting devices. The
three-way straight pipe 3 is arranged on one side of the primary
pump 1 and the backup pump 4. The primary pump 1 and the three-way
straight pipe are connected by the check valve for the primary pump
2. The backup pump 4 and the three-way straight pipe 3 are
connected by the check valve for the backup pump 5. Multiple
connection parts are integrated into one part which is more
reliable, and no professional is required on installation, users
can install and connect pipeline devices themselves, and
maintenance is convenient, saving on manual installation and
maintenance costs. The backup pump 4 inlet is higher than the
primary pump inlet. The backup pump 4 is directly connected to the
elbow pipe 51 by a quick-connection fitting so no need of a
supporting base thereof. The user does not need to use any assembly
tools so the installation room is reduced. The production cost is
reduced as well. And the application range is expanded. The primary
pump 1 is equipped with a primary pump float switch 6. A primary
pump float ball 7 is provided under the primary pump float switch
6. The primary pump float ball 7 is a twin-float, and the
adjustment speed of the twin-float is faster than a single float,
meanwhile, the twin-float can prevent the foreign substance from
blocking the float ball. A backup pump hoop 8 is provided on the
three-way straight pipe 3. A backup pump float switch 9 is provided
on the backup pump hoop 8. And a backup pump float ball 10 is
provided under the backup pump float switch 9. The installation
position of the backup pump float switch 9 is higher than the
activation water level of the primary pump float switch 6, in this
way, when the primary pump 1 stops running due to failure, and the
water level reaches the activation water level of the backup pump
float switch 9, the backup pump 4 starts running.
[0034] The backup pump 4 is an axial flow structure, which can
actually apply a centrifugal or an axial flow structure according
to customer's needs and the structure. The backup pump 4 includes:
a pump housing 41, a diffuser 42 is arranged at the lower part of
the pump housing 41. A DC motor 43 is arranged inside of the pump
housing 41. The impeller 44 is arranged below the DC motor 43, and
the impeller 44 is connected to the DC motor 43 drive shaft. The
open centrifugal impeller applies the axial flow structure to
change the direction of the fluid at the exit of the impeller 44
through the diffuser 42, so that the fluid movement changes from
radial direction to axial direction, which at the same time solves
the problem of the traditional axial flow impeller low lift and
unable to transport sewage media. The skeleton oil seal 45 is
disposed between the impeller 44 and the DC motor 43. A flange 46
is arranged on the side of the skeleton oil seal 45. And an outlet
47 is arranged at the top of the pump housing 41. The internal
cavity 48 is formed between the DC motor 43 and the pump housing
41, liquid media is transported through the cavity which formed
between the pump housing and the internal motor, in such design,
the backup pump volume is reduced, the production cost is reduced,
and the application range is extended.
[0035] The check valve device 5 for the backup pump includes: the
elbow pipe 51, two ends of the elbow pipe 51 are respectively
provided with a backup pump pipe joint 52 and a backup pump joint
53. The backup pump pipe joint 52 is used to connect to the backup
pump outlet via thread. The outer wall of the backup pump joint 53
is provided with a backup pump compression pipe 54 which is used to
match backup pump joint 53, fastening and sealing through threaded
connection, the inner wall of the backup pump joint 53 is provided
with a backup pump rubber seal ring 55 for fastening and sealing.
The backup pump metal clip ring 56 is arranged on one side of the
backup pump rubber seal ring 55 and inside the elbow pipe 51 for
positioning and axially stopping to prevent the backup pump rubber
ring 55 from being squeezed into the internal line of check valve.
The valve flapper 57 is arranged inside the elbow pipe 51, while
the backup pump 4 is running, the valve flapper 57 is pushed open
by the water flow; when the backup pump 4 stops running, the valve
flapper 57 automatically closes to prevent the water flow from
pouring back into the backup pump 4 body. The outer wall of the
elbow pipe 51 is provided with a curved nozzle 58 for the internal
exhaust of the backup pump 4.
[0036] The check valve device 2 for the primary pump includes:
valve body 21, two ends of the valve body 21 are provided with the
primary pump joint 22 and the primary pump compression joint 23.
The primary pump compression joint 23 is used for connecting with
the primary pump outlet via thread. The outer wall of the primary
pump joint 22 is provided with the primary pump compression pipe 24
which is used to match the primary pipe connector 22, fastening and
sealing through threaded connection. The inner wall of the primary
pump joint 22 is provided with a primary pump rubber seal ring 25
for fastening and sealing. The primary pump metal clip ring 26 is
arranged below the primary pump rubber seal ring 25, for
positioning and axially stopping to prevent the primary pump rubber
ring 25 from being squeezed into the internal line of check valve.
The inside of the valve body 21 is provided with a check valve
plate 27, while the primary pump 1 is running, the check valve
plate 27 is pushed open by the water flow, the light weight check
valve plate does not affect the primary pump running. When the
primary pump 1 stop running and the backup pump 4 starts to run,
the check valve plate 27 automatically closes to prevent the water
from backflowing into the primary pump 1 body.
[0037] In the specific implementation, in the normal operating
condition, when the primary pump 1 operates, the backup pump 4 is
closed; the primary pump 1 outlet is connected to the check valve
device 2 for the primary pump. And the check valve device 2 for the
primary pump is integrated with a three-way straight pipe 3 to be a
integrated part, one-piece structure for users to install by
themselves which saves the cost of manual installation. The backup
pump 4 also has a check valve device 5, so when the primary pump 1
is running, the check valve device 5 for backup pump prevents the
water from backflowing into the pump body of the backup pump 4.
When the primary pump 1 stop running and the water level reaches a
certain height, the backup pump float switch 9 activates the backup
pump 4. And the backup pump 4 power cord is connected to a
specialized backup power supply, therefore, when an emergency such
as the primary pump 1 failure or a power outage occurs, the backup
pump 4 operation will not be affected. When the backup pump 4 is
running, the check valve device 2 for the primary pump will also
prevent the water from backflowing into the pump body of the
primary pump 1.
[0038] In summary, the present invention which provides a combined
sump pump with a new type of backup pump structure has the
following advantages: [0039] 1. The pipeline connection device is
designed as three-way straight pipe styles, the primary pump and
the backup pump are directly connected by three-way straight pipe
and elbow pipe, multiple connection parts are integrated into a
integrated part and the connection is more reliable. [0040] 2. The
present invention relates to a combined sump pump, in which the
pipeline device installation is simple, and installation room of
the backup pump is greatly reduced. [0041] 3. The centrifugal
impeller is successfully applied in the axial flow structure, in
such, the applying scope of the centrifugal impeller is expanded,
and the problem of the low lift and the inability to transport
sewage media of axial impeller is resolved, in fact, centrifugal or
axial flow structures could be selected according to different
needs. [0042] 4. The primary pump preferably adopts the twin-float
switch, the twin-float switch is more convenient to adjust the
water level and can prevent foreign matter from blocking the float
ball; [0043] 5. Integrated check valve structure, easy and reliable
connection, while the primary pump or backup pump are operating,
the water will not backflow to another pump; [0044] 6. The present
invention relates to a combined sump pump, which is convenient for
management, cost saving, and convenient for customers to use for
installation and overhaul.
[0045] The foregoing descriptions are merely embodiments of the
present invention, and therefore do not mean to limit the scope of
the present invention. Any implementation on the content of the
present specification by using an alternative structure or
equivalent process transformation, or, a direct or indirect
application in the same field or in other related technical fields
are in the protection scopes of the present invention.
* * * * *