U.S. patent application number 14/913381 was filed with the patent office on 2016-07-14 for fast-locking anti-loosening locking device.
The applicant listed for this patent is GUANGZHOU BOSMA OPTOELECTRONIC TECHNOLOGY CO., LTD.. Invention is credited to Aiquan Gao, Dexiang Zeng.
Application Number | 20160202022 14/913381 |
Document ID | / |
Family ID | 49796414 |
Filed Date | 2016-07-14 |
United States Patent
Application |
20160202022 |
Kind Code |
A1 |
Gao; Aiquan ; et
al. |
July 14, 2016 |
FAST-LOCKING ANTI-LOOSENING LOCKING DEVICE
Abstract
The present invention discloses a fast-locking anti-loosening
locking device, comprising a body, a pull rod with threads, a
pressing block and an eccentric handle, wherein the pressing block
is disposed on one side of the body, the pull rod respectively
penetrates through the pressing blocking and the body, and one end
of the pull rod is movably connected to the eccentric handle and
the other end of the pull rod penetrates through the body to
thread-fit a cap nut; and a spacing between the pressing block and
the body is adjusted by rotating the cap nut to adapt to guide
rails of different sizes. The present application has the following
advantages: even through in the case of firearm firing, the
fast-locking anti-loosening locking device can still maintain a
locked state instead of loosening, thereby ensuring the reliability
and practicality of the mechanism.
Inventors: |
Gao; Aiquan; (Guangzhou,
Guangdong, CN) ; Zeng; Dexiang; (Guangzhou,
Guangdong, CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
GUANGZHOU BOSMA OPTOELECTRONIC TECHNOLOGY CO., LTD. |
Guangdong, Guangdong |
|
CN |
|
|
Family ID: |
49796414 |
Appl. No.: |
14/913381 |
Filed: |
August 13, 2014 |
PCT Filed: |
August 13, 2014 |
PCT NO: |
PCT/CN2014/084222 |
371 Date: |
February 22, 2016 |
Current U.S.
Class: |
42/90 |
Current CPC
Class: |
F41G 11/003 20130101;
F41G 11/004 20130101; F16B 2/12 20130101; F16B 2/185 20130101 |
International
Class: |
F41G 11/00 20060101
F41G011/00 |
Foreign Application Data
Date |
Code |
Application Number |
Aug 22, 2013 |
CN |
201310371540.6 |
Claims
1. A fast-locking anti-loosening locking device, comprising a body,
a pull rod with threads, a pressing block and an eccentric handle,
wherein the pressing block is disposed on one side of the body, the
pull rod respectively penetrates through the pressing blocking and
the body, and one end of the pull rod is movably connected to the
eccentric handle and the other end of the pull rod penetrates
through the body to thread-fit a cap nut.
2. The fast-locking anti-loosening locking device according to
claim 1, wherein the cap nut is clamped into a slot on the body by
two opposite sides of a hexagon, and two lateral sides of the slot
clamp the cap nut.
3. The fast-locking anti-loosening locking device according to
claim 1, wherein the pull rod is a pull rod with threads.
4. The fast-locking anti-loosening locking device according to
claim 3, wherein a protrusion is provided at an end of the
eccentric handle connected to the pull rod, and when in rotation,
the protrusion urges the pressing block to start locking with the
body and the cap nut is clamped into the slot on a side face of the
body by the two opposite sides of the hexagon.
5. The fast-locking anti-loosening locking device according to
claim 1, wherein the eccentric handle is provided with a mounting
hole into which a wrench is movably connected, a spring is mounted
between the wrench and the bottom of the mounting hole, a notch is
formed at an end portion of the pull rod connected to the eccentric
handle, and a tongue extending and fitting the notch is provided at
one end of the wrench.
6. The fast-locking anti-loosening locking device according to
claim 5, wherein the wrench is fixed into the mounting hole by
passing a pin through the wrench.
7. The fast-locking anti-loosening locking device according to
claim 5, wherein the spring is pressed into the mounting hole of
the eccentric handle by a spring seat, and the head portion of the
spring seat is mounted inside a groove of the wrench.
8. The fast-locking anti-loosening locking device according to
claim 5, when the eccentric handle is rotated to a position
vertical to the pull rod, when the eccentric handle is rotated to
be vertical to the pull rod, the tongue will be automatically
clamped at the notch of the pull rod under the elasticity.
9. The fast-locking anti-loosening locking device according to
claim 5, wherein the tongue of the wrench is tilted to separate
from the notch of the pull rod when the wrench is pressed to the
largest extent.
Description
TECHNICAL FIELD
[0001] The present invention relates to a fast-locking
anti-loosening locking device.
BACKGROUND OF THE PRESENT INVENTION
[0002] When in use of firearms, the sighting telescope, bracket,
butt or other accessories are usually locked on the guide rails of
firearms by a locking device having an eccentric structure.
However, in the existing practical applications, some firearm
accessories cannot be locked by the locking device due to too small
guide rails or too large guide rails. Meanwhile, the existing
locking device is likely to loosen, and this may make the use of
firearms inconvenient and even cause serious consequences.
SUMMARY OF THE PRESENT INVENTION
[0003] An objective of the present invention is to provide a
fast-locking anti-loosening locking device which can be adjusted to
adapt to guide rails of different sizes and which has a function of
anti-loosening, in order to overcome the deficiencies in the prior
art.
[0004] To achieve the above objective, the present invention
employs the following technical solution: a fast-locking
anti-loosening locking device is provided, including a body, a pull
rod with threads, a pressing block and an eccentric handle, wherein
the pressing block is disposed on one side of the body, the pull
rod respectively penetrates through the pressing blocking and the
body, and one end of the pull rod is movably connected to the
eccentric handle and the other end of the pull rod penetrates
through the body to thread-fit a cap nut; and a spacing between the
pressing block and the body is adjusted by rotating the cap nut to
adapt to guide rails of different sizes.
[0005] The cap nut is clamped into a slot on the body by two
opposite sides of a hexagon, and two lateral sides of the slot
clamp the cap nut to prevent the cap nut from rotating to loosen
after locking.
[0006] The pull rod is a pull rod with threads, which facilitates
the fitting with the cap nut.
[0007] A protrusion is provided at an end of the eccentric handle
connected to the pull rod, and when in rotation, the protrusion
urges the pressing block to start locking with the body and the cap
nut is clamped into the slot on a side face of the body by the two
opposite sides of the hexagon to prevent the cap nut from rotating
to loosen after locking.
[0008] The eccentric handle is provided with a mounting hole into
which a wrench is movably connected, a spring is mounted between
the wrench and the bottom of the mounting hole, a notch is formed
at an end portion of the pull rod connected to the eccentric
handle, and a tongue extending and fitting the notch is provided at
one end of the wrench.
[0009] The wrench is fixed into the mounting hole by passing a pin
through the wrench.
[0010] The spring is pressed into the mounting hole of the
eccentric handle by a spring seat, and the head portion of the
spring seat is mounted inside a groove of the wrench. The mounting
is convenient and the structure is firm.
[0011] When the eccentric handle is rotated to a position vertical
to the pull rod, when the eccentric handle is rotated to be
vertical to the pull rod, the tongue will be automatically clamped
at the notch of the pull rod under the elasticity, thereby
preventing the rotation of the eccentric handle.
[0012] The tongue of the wrench is tilted to separate from the
notch of the pull rod when the wrench is pressed to the largest
extent.
[0013] The locking force for locking the pressing block by the
eccentric handle is adjustable, the fitting length of the pull rod
may be adjusted by rotating the cap nut, and the locking force
between the pressing block and the body may be changed by changing
the fitting length.
[0014] Compared with the prior art, the present invention has the
following advantages: the fitting length of the pull rod may be
adjusted by rotating the cap nut, and the locking force between the
pressing block and the body may be changed by changing the fitting
length. Therefore, the fast-locking anti-loosening locking device
of the present invention may be adjusted to adapt to guide rails of
different sizes and lock the pressing block. Since the cap nut is a
hexagon and there is a slot matched with the hexagon on the body,
by clamping the cap nut into the slot, the cap nut is prevented
from loosening and the purpose of anti-loosening is achieved. When
the eccentric handle is rotated to a position vertical to the pull
rod, the tongue which is integrated with the wrench can lock the
pressing block and the wrench will be automatically clamped at the
notch of the pull rod with threads under the elasticity, thereby
preventing the eccentric handle from loosening. Even through in the
case of firearm firing, the fast-locking anti-loosening locking
device can still maintain a locked state instead of loosening,
thereby ensuring the reliability and practicality of the
mechanism.
BRIEF DESCRIPTION OF THE DRAWINGS
[0015] FIG. 1 is an exploded view 1 of a fast-locking
anti-loosening locking device according to the present
invention;
[0016] FIG. 2 is an exploded view 2 of a fast-locking
anti-loosening locking device according to the present
invention;
[0017] FIG. 3 is a sectional view of an eccentric handle component
of the fast-locking anti-loosening locking device according to the
present invention; and
[0018] FIG. 4 is a sectional view of the fast-locking
anti-loosening locking device according to the present invention in
another direction.
DETAILED DESCRIPTION OF THE PRESENT INVENTION
[0019] The present invention will be described in details as below
with reference to the accompanying drawings by specific
embodiments.
[0020] A fast-locking anti-loosening locking device, as shown in
FIGS. 1-4, includes a body 9, a pull rod 1 with threads, a pressing
block 8, a sunk screw 3, a wrench 2, a cap nut 10, a spring 5, a
spring seat 4, a pin 6 and an eccentric handle 7. The pressing
block 8 is disposed on one side of the body 9 and fits the body 9
for being clamped and fixed on the guide rails. The pull rod 1
respectively penetrates through the pressing blocking 8 and the
body 9, and one end of the pull rod 1 is movably connected to the
eccentric handle 7 by the sunk screw 3 and the other end of the
pull rod 1 penetrates through the body 9 to thread-fit the cap nut
10. Spacing between the pressing block 8 and the body 9 is adjusted
by rotating the cap nut 10 to adapt to guide rails of different
sizes. Meanwhile, the locking force for locking the pressing block
8 by the eccentric handle 7 may be adjusted. The pull rod 1 is a
pull rod with threads and thread-connected with the cap nut 10 by
threads.
[0021] Preferably, a protrusion is provided at an end of the
eccentric handle 7 connected to the pull rod 1, and when in
rotation, the protrusion urges the pressing block 8 to start
locking with the body 9 and the cap nut 10 is clamped into the slot
on a side face of the body 9 by the two opposite sides of the
hexagon, and two lateral sides of the slot clamp the cap nut 10 to
prevent the cap nut from rotating to loosen after locking. The slot
on a side face of the body 9 can clamp the two opposite sides of
the cap nut 10 to prevent the cap nut from rotating to loosen after
locking.
[0022] The eccentric handle 7 is provided with a mounting hole into
which the wrench 2 is movably connected, the spring 5 is mounted
between the wrench 2 and the bottom of the mounting hole, a notch
11 is formed at an end portion of the pull rod 1 connected to the
eccentric handle 7, and a tongue 12 extending and fitting the notch
11 is provided at one end of the wrench 2. When the eccentric
handle 7 is rotated to a position vertical to the pull rod 1, the
eccentric handle 7 can lock the pressing block 8 and the tongue 12
of the wrench 2 will be automatically clamped at the notch 11 under
the elasticity, thereby preventing the rotation of the eccentric
handle 7. The tongue 12 of the wrench 2 will be separated from the
notch 11 of the pull rod 1 when the wrench 2 is pressed to the
largest extent. At this moment, the eccentric handle 7 may be
rotated outward and the pressing block 8 and the body 9 may be
loosened. The operation is very simple, and the present invention
is reliable and durable. The wrench 2 and the tongue 12 are
integrated, so that the structure is simple and reliable and the
mounting is easy. The wrench 2 is fixed into the mounting hole by
passing the pin 13 through the wrench 2. The spring 5 is pressed
into the mounting hole of the eccentric handle 7 by a spring seat
4, and the head portion of the spring seat 4 is mounted inside a
groove of the wrench 2. The tongue 12 is clamped at the notch of
the pull rod 1 under the elasticity, to prevent the rotation of the
handle. The spring 5 is arranged upward so that the tongue of the
wrench clamps the notch 11. The number of overall parts is small
and the assembly is convenient.
[0023] Although the present invention has been described with
reference to the specific embodiments, this description is not
intended to limit the present invention. Referring to the
description of the present invention, other variations of the
disclosed embodiment are expected by those skilled in the art, and
those variations fall into the scope defined by the appended
claims.
* * * * *