CN110331908B - Hinge fastener and hinge - Google Patents
Hinge fastener and hinge Download PDFInfo
- Publication number
- CN110331908B CN110331908B CN201910760685.2A CN201910760685A CN110331908B CN 110331908 B CN110331908 B CN 110331908B CN 201910760685 A CN201910760685 A CN 201910760685A CN 110331908 B CN110331908 B CN 110331908B
- Authority
- CN
- China
- Prior art keywords
- hinge
- spring
- arm
- hinge buckle
- reinforcing sheet
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Links
- 238000005452 bending Methods 0.000 claims abstract description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 29
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 238000009434 installation Methods 0.000 abstract description 10
- 230000009286 beneficial effect Effects 0.000 description 8
- 239000002184 metal Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D5/00—Construction of single parts, e.g. the parts for attachment
- E05D5/02—Parts for attachment, e.g. flaps
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/20—Application of doors, windows, wings or fittings thereof for furniture, e.g. cabinets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hinges (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
The invention discloses a hinge buckle and a hinge, which comprises a hinge buckle, a fixed arm and a base, wherein the hinge buckle comprises a body rotating around a pivot, the body is provided with a pressing part, a buckling groove part and a spring pulling part, one end of the spring pulling part is connected with the body, the other end of the spring pulling part is a free end, and the spring pulling part is used for straightening or bending when the body rotates. According to the invention, the hinge buckle is replaced, and the spring pull part is arranged on the hinge buckle body, so that the installation of a torsion spring is avoided, the installation structure of the hinge buckle is simplified, the production efficiency is improved, and the production cost is reduced.
Description
Technical Field
The invention belongs to the field of furniture hardware accessories, and particularly relates to a hinge buckle and a hinge.
Background
The existing furniture hinge is generally fastened with a base through a hinge buckle, the hinge buckle is fixed on the fixed arm through a pivot, and the pivot is sleeved with a torsion spring so that the hinge buckle can automatically reset, as shown in a Chinese patent document CN 206917474U. However, the hinge buckle has a complicated installation structure, low assembly efficiency, and high production cost, and therefore, it is necessary to optimize the existing hinge buckle.
Disclosure of Invention
The invention aims to provide a hinge buckle and a hinge, which can simplify the installation structure of the hinge buckle, improve the production efficiency and reduce the production cost.
The technical problems are solved by the following technical scheme: the hinge buckle comprises a body rotating around a pivot, wherein the body is provided with a pressing part and a buckling groove part, the body is further provided with a spring pulling part, one end of the spring pulling part is connected with the body, the other end of the spring pulling part is a free end, and the spring pulling part is used for straightening or bending when the body rotates.
Compared with the background technology, the invention has the beneficial effects that: through setting up bullet and drawing the portion on the body, avoided the installation of torsional spring, simplified the mounting structure of hinge knot to improved production efficiency, reduced manufacturing cost.
In one embodiment, the spring pulling part comprises a bent spring rod and a straight spring rod, one end of the bent spring rod is connected with the body, the other end of the bent spring rod is connected with the straight spring rod, and the tail end of the straight spring rod is a free end.
The beneficial effects are that: when the elastic rod is used, as long as the straight elastic rod is kept relatively fixed, the bent elastic rod is straightened or bent when the body is rotated through the pressing part, so that the buckling groove is separated, and buckling or unhooking is realized.
In one embodiment, the spring pull part comprises two bent spring rods arranged in parallel and two straight spring rods arranged in parallel, a balance rod is connected between the two straight spring rods, and the spring pull part and the body are integrally formed.
The beneficial effects are that: the balance rod is arranged to enable the displacement of the two straight elastic rods to be consistent, so that the motion cooperativity of the two straight elastic rods is ensured; the integral molding can further simplify the installation structure of the hinge buckle and reduce the production cost.
In one embodiment, the spring part is composed of two wavy spring rods and a balance rod, one end of each wavy spring rod is connected with the body, the other end of each wavy spring rod is a free end, the balance rod is connected between the two wavy spring rods, and the spring part and the body are integrally formed.
The beneficial effects are that: when the novel buckling hook is used, as long as the tail end of the wavy elastic rod is kept relatively fixed, the wavy elastic rod is straightened or bent when the body is rotated through the pressing part, so that the buckling groove is separated, and buckling or unhooking is realized.
In one embodiment, the body is provided with shaft holes penetrating through the left side and the right side of the body, the pivot shaft penetrates through the shaft holes, and the body rotates around the pivot shaft; the buckling groove part is a metal reinforcing sheet arranged on the body, and the bottom of the reinforcing sheet is provided with a buckling groove.
The beneficial effects are that: the buckling groove part and the body are in split type design, and meanwhile, different materials are adopted, so that the maintenance and replacement of the reinforcing sheet are facilitated, the universality of the body is improved, and the cost is reduced.
In one embodiment, a first through hole is formed in the middle of the reinforcing sheet, and the first through hole is sleeved on the pivot; and the left side and the right side of the body are respectively provided with a caulking groove for accommodating the reinforcing sheet, or the body is provided with a caulking groove which penetrates through the upper end and the lower end of the body and accommodates the reinforcing sheet.
The beneficial effects are that: the reinforcing sheet is arranged in the caulking groove, and is helpful for positioning and protecting the reinforcing sheet.
In one embodiment, the shaft holes are arranged in the caulking grooves on the left side and the right side of the body, the caulking grooves on the left side and the right side of the body are outwards protruded to be provided with positioning columns, the reinforcing sheet is provided with second through holes, and the second through holes are sleeved on the positioning columns.
In one embodiment, the caulking groove penetrates through the shaft hole, and the reinforcing sheet is provided with a convex hook and is hooked on the caulking groove through the convex hook.
The above embodiments can be arbitrarily combined to form a combined embodiment on the premise of contradiction of technical scheme part according to product design requirements.
The technical problems are solved by the following technical scheme: the hinge comprises a fixed arm and a base, wherein the fixed arm is detachably connected with the base, the hinge buckle in any embodiment is further arranged in an arm cavity of the fixed arm through a pivot, and the fixed arm is detachably buckled with the base through a buckling groove part of the hinge buckle.
Compared with the background technology, the invention has the beneficial effects that: through changing the hinge knot, set up bullet and draw the portion on the hinge knot body, avoided the installation of torsional spring, simplified the mounting structure of hinge knot to improved production efficiency, reduced manufacturing cost.
In one embodiment, the arm cavity of the fixed arm is provided with an arm body bump, and the spring pull part of the hinge buckle is clamped between the arm body bump and the arm cavity of the fixed arm.
The beneficial effects are that: the arm body protruding blocks are helpful for guaranteeing the installation position of the hinge buckle and guaranteeing the stable operation of the hinge buckle and the hinge.
The above embodiments can be arbitrarily combined to form a combined embodiment on the premise of contradiction of technical scheme part according to product design requirements.
Drawings
FIG. 1 is a cross-sectional view of a first embodiment of the invention;
FIG. 2 is an exploded view of a first embodiment of the present invention;
FIG. 3 is a structural assembly view of a fixing arm and hinge buckle according to a first embodiment of the present invention;
FIG. 4 is an exploded view of a fixing arm and a hinge buckle according to a first embodiment of the present invention;
FIG. 5 is a structural assembly view of a fixing arm and hinge buckle according to a second embodiment of the present invention;
Fig. 6 is an exploded view of the structure of the fixing arm and hinge buckle in the second embodiment of the present invention.
The device comprises a pressing part 1, a buckling groove part 2, a reinforcing sheet 21, a buckling groove 22, a first through hole 23, a second through hole 24, a convex hook 25, a spring pulling part 3, a curved spring rod 31, a straight spring rod 32, an interference bump 33, a balance rod 34, a wave-shaped spring rod 35, a shaft hole 4, a pivot 5, a caulking groove 6, a positioning column 7, a fixed arm 8, an arm body bump 81 and a base 9.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
Example 1
As shown in fig. 1, 2, 3 and 4, the hinge of this embodiment includes a hinge buckle, a fixed arm 8 and a base 9, the fixed arm 8 is detachably connected with the base 9, the hinge buckle is installed in an arm cavity of the fixed arm 8 through a pivot 5, a free end of the spring pull portion 3 is in interference fit with the arm cavity of the fixed arm 8, and the fixed arm 8 is detachably buckled with the base 9 through a buckling groove portion 2 of the hinge buckle. The arm cavity of the fixed arm 8 is provided with an arm body lug 81, the arm body lug 81 supports the spring pull part 3 of the hinge buckle, and the spring pull part 3 is clamped between the arm body lug 81 and the arm cavity of the fixed arm.
As shown in fig. 3 and 4, the hinge buckle includes a plastic body rotating around a pivot 5, the body is provided with a pressing part 1, a buckling groove part 2 and a spring pulling part 3, one end of the spring pulling part 3 is connected with the body, the other end of the spring pulling part 3 is a free end, and the spring pulling part 3 is used for straightening or bending when the body rotates. The spring pulling part 3 comprises a bent spring rod 31 and a straight spring rod 32, one end of the bent spring rod 31 is connected with the body, the other end of the bent spring rod is connected with the straight spring rod 32, and the tail end of the straight spring rod 32 is a free end. The side wall of the tail end of the straight spring rod 32 is provided with an interference convex block 33. Specifically, the spring pull portion 3 includes two curved spring rods 31 arranged in parallel and two straight spring rods 32 arranged in parallel, a balance rod 34 is connected between the free ends of the two straight spring rods 32, and the spring pull portion 3 and the body are integrally formed.
The buckling groove part 2 is a metal reinforcing sheet 21 arranged on the body, the bottom of the reinforcing sheet 21 is provided with a buckling groove 22, the middle part of the reinforcing sheet 21 is provided with a first through hole 23 and a second through hole 24, and the first through hole 23 is sleeved on the pivot 5. During the rotation of the body, the buckling grooves 22 of the reinforcing sheet 21 are buckled or separated with the base 9.
The body is provided with shaft holes 4 penetrating through the left side and the right side of the body, a pivot 5 penetrates through the shaft holes 4, and the body rotates around the pivot 5; and the left and right sides of the body are respectively provided with a caulking groove 6 for accommodating the reinforcing sheet 21. The shaft hole 4 is arranged in the caulking groove 6 at the left side and the right side of the body, the caulking groove 6 is provided with a positioning column 7 in an outward protruding mode, and the second through hole 24 is sleeved on the positioning column 7.
Example two
As shown in fig. 5 and 6, the hinge of this embodiment includes a hinge buckle, a fixed arm 8 and a base (not shown), the fixed arm 8 is detachably connected with the base, the hinge buckle is installed in an arm cavity of the fixed arm 8 through a pivot 5, a free end of the spring pull portion 3 is in interference fit with the arm cavity of the fixed arm 8, and the fixed arm 8 is detachably buckled with the base through a buckling groove portion 2 of the hinge buckle. The arm cavity of the fixed arm 8 is provided with an arm body lug 81, the arm body lug 81 supports the spring pull part 3 of the hinge buckle, and the spring pull part 3 is clamped between the arm body lug 81 and the arm cavity of the fixed arm.
The hinge buckle comprises a plastic body rotating around a pivot 5, the body is provided with a pressing part 1, a buckling groove part 2 and a spring pulling part 3, one end of the spring pulling part 3 is connected with the body, the other end of the spring pulling part 3 is a free end, and the spring pulling part 3 is used for straightening or bending when the body rotates. The spring pull part 3 comprises two wave spring rods 35 and a balance rod 34, one end of each wave spring rod 35 is connected with the body, the other end of each wave spring rod 35 is a free end, the balance rod 34 is connected between the free ends of the two wave spring rods 35, interference protruding blocks 33 are arranged on the side walls of the free ends of the wave spring rods 35, and the spring pull part 3 and the body are integrally formed.
The buckling groove part 2 is a metal reinforcing sheet 21 arranged on the body, the bottom of the reinforcing sheet 21 is provided with a buckling groove 22, the middle part of the reinforcing sheet 21 is provided with a first through hole 23, and the first through hole 23 is sleeved on the pivot 5. During the rotation of the body, the buckling grooves 22 of the reinforcing sheet 21 are buckled or separated with the base.
The body is provided with shaft holes 4 penetrating through the left side and the right side of the body, a pivot 5 penetrates through the shaft holes 4, and the body rotates around the pivot 5; the body is provided with a caulking groove 6 penetrating through the upper end and the lower end of the body, the caulking groove 6 penetrates through the shaft hole 4 and accommodates the reinforcing sheet 21, and the reinforcing sheet 21 is provided with a convex hook 25 and is hooked on the caulking groove 6 through the convex hook 25.
According to the hinge buckle, the spring pulling part 3 is arranged on the hinge buckle body of the hinge, and the spring pulling part 3 and the body are integrally formed, so that the installation of a torsion spring is avoided, the installation structure of the hinge buckle is simplified, the production efficiency is improved, and the production cost is reduced.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present invention, and these modifications and substitutions should also be considered as being within the scope of the present invention.
Claims (7)
1. The utility model provides a hinge is detained, includes the rotatory body around pivot (5), and the body is equipped with pressing part (1) and catching groove portion (2), its characterized in that: the body is also provided with a spring pull part (3), one end of the spring pull part (3) is connected with the body, the other end of the spring pull part (3) is a free end, and the spring pull part (3) is used for straightening or bending when the body rotates; the elastic pulling part (3) comprises a bent elastic rod (31) and a straight elastic rod (32), one end of the bent elastic rod (31) is connected with the body, the other end of the bent elastic rod is connected with the straight elastic rod (32), and the tail end of the straight elastic rod (32) is a free end;
The spring pulling part (3) comprises two bent spring rods (31) which are arranged in parallel and two straight spring rods (32) which are arranged in parallel, a balance rod (34) is connected between the two straight spring rods (32), and the spring pulling part (3) and the body are integrally formed;
the hinge buckle is arranged in an arm cavity of a fixed arm (8) of the hinge through a pivot (5), the free end of the spring pull part (3) is fixedly matched with the arm cavity of the fixed arm (8), and the fixed arm (8) is detachably buckled with a base (9) of the hinge through a buckling groove part (2) of the hinge buckle.
2. The hinge buckle of claim 1, wherein: the elastic pulling part (3) consists of two wavy elastic rods (35) and a balance rod (34), one end of each wavy elastic rod (35) is connected with the body, the other end of each wavy elastic rod (35) is a free end, the balance rod (34) is connected between the two wavy elastic rods (35), and the elastic pulling part (3) and the body are integrally formed.
3. The hinge buckle of claim 1, wherein: the body is provided with shaft holes (4) penetrating through the left side and the right side of the body, the pivot (5) penetrates through the shaft holes (4), and the body rotates around the pivot (5); the buckling groove part (2) is a reinforcing sheet (21) arranged on the body, and a buckling groove (22) is arranged at the bottom of the reinforcing sheet (21).
4. A hinge buckle according to claim 3, wherein: the middle part of the reinforcing sheet (21) is provided with a first through hole (23), and the first through hole (23) is sleeved on the pivot (5); and the left side and the right side of the body are respectively provided with a caulking groove (6) for accommodating the reinforcing sheet (21), or the body is provided with the caulking groove (6) which penetrates through the upper end and the lower end of the body and accommodates the reinforcing sheet (21).
5. A hinge buckle according to claim 3, wherein: the shaft hole (4) is arranged in the caulking grooves (6) on the left side and the right side of the body, the caulking grooves (6) on the left side and the right side of the body are outwards protruded to be provided with positioning columns (7), the reinforcing sheet (21) is provided with a second through hole (24), and the second through hole (24) is sleeved on the positioning columns (7).
6. The hinge buckle of claim 5, wherein: the caulking groove (6) penetrates through the shaft hole (4), and the reinforcing sheet (21) is provided with a convex hook (25) and is hooked on the caulking groove (6) through the convex hook (25).
7. The utility model provides a hinge, includes fixed arm (8) and base (9), and fixed arm (8) are connected its characterized in that with base (9) detachable: the hinge buckle of any one of claims 1-6, wherein the arm cavity of the fixed arm is provided with an arm body lug (81), and the spring pull part (3) of the hinge buckle is clamped between the arm body lug (81) and the arm cavity of the fixed arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910760685.2A CN110331908B (en) | 2019-08-16 | 2019-08-16 | Hinge fastener and hinge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910760685.2A CN110331908B (en) | 2019-08-16 | 2019-08-16 | Hinge fastener and hinge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110331908A CN110331908A (en) | 2019-10-15 |
| CN110331908B true CN110331908B (en) | 2024-04-30 |
Family
ID=68149811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910760685.2A Active CN110331908B (en) | 2019-08-16 | 2019-08-16 | Hinge fastener and hinge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110331908B (en) |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0369261A1 (en) * | 1988-11-16 | 1990-05-23 | Julius Blum Gesellschaft m.b.H. | Hinge with a hinge arm |
| US5119527A (en) * | 1990-05-16 | 1992-06-09 | Julius Blum Gesellschaft M.B.H. | Hinge with improved snap engagement locking and unlocking structure |
| US5159740A (en) * | 1990-05-19 | 1992-11-03 | Julius Blum Gesellschaft M.B.H. | Hinge with spring coupling member |
| CN1114999A (en) * | 1994-07-11 | 1996-01-17 | 林聪吉 | Separable hinge |
| CN1205758A (en) * | 1995-12-18 | 1999-01-20 | 尤利乌斯·布卢姆有限公司 | Hinge |
| CN2344507Y (en) * | 1997-12-31 | 1999-10-20 | 林宗隆 | Hinge |
| WO2003091521A1 (en) * | 2002-04-26 | 2003-11-06 | Sugatsune Kogyo Co., Ltd. | Hinge |
| DE202010003833U1 (en) * | 2009-04-01 | 2010-07-22 | Grass Gmbh & Co. Kg | hinge |
| WO2012064297A1 (en) * | 2010-10-14 | 2012-05-18 | Samet Kalip Ve Madeni Eşya Sanayi Ve Ticaret Anonim Şirketi | Slow-down mechanism placed in furniture hinge |
| CN102536013A (en) * | 2012-01-11 | 2012-07-04 | 伍志勇 | Furniture hinge |
| CN102536016A (en) * | 2010-12-17 | 2012-07-04 | 世嘉智尼工业株式会社 | Hinge apparatus |
| CN102619424A (en) * | 2012-01-11 | 2012-08-01 | 伍志勇 | Base self-locking mechanism for hinge |
| WO2013175983A1 (en) * | 2012-05-21 | 2013-11-28 | スガツネ工業株式会社 | Hinge device |
| CN203394219U (en) * | 2013-06-05 | 2014-01-15 | 广东泰明金属制品有限公司 | Built-in damper hinge |
| CN204691509U (en) * | 2015-06-18 | 2015-10-07 | 佛山市顺德区哥尼迪精密五金制造有限公司 | A kind of buffer hinge with parallel adjusting device |
| CN105909098A (en) * | 2016-06-08 | 2016-08-31 | 黑学智 | Base disassembling and assembling structure of furniture hinge |
| CN211473765U (en) * | 2019-08-16 | 2020-09-11 | 广东炬森五金精密制造有限公司 | Hinge buckle and hinge |
-
2019
- 2019-08-16 CN CN201910760685.2A patent/CN110331908B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0369261A1 (en) * | 1988-11-16 | 1990-05-23 | Julius Blum Gesellschaft m.b.H. | Hinge with a hinge arm |
| US5119527A (en) * | 1990-05-16 | 1992-06-09 | Julius Blum Gesellschaft M.B.H. | Hinge with improved snap engagement locking and unlocking structure |
| US5159740A (en) * | 1990-05-19 | 1992-11-03 | Julius Blum Gesellschaft M.B.H. | Hinge with spring coupling member |
| CN1114999A (en) * | 1994-07-11 | 1996-01-17 | 林聪吉 | Separable hinge |
| CN1205758A (en) * | 1995-12-18 | 1999-01-20 | 尤利乌斯·布卢姆有限公司 | Hinge |
| CN2344507Y (en) * | 1997-12-31 | 1999-10-20 | 林宗隆 | Hinge |
| WO2003091521A1 (en) * | 2002-04-26 | 2003-11-06 | Sugatsune Kogyo Co., Ltd. | Hinge |
| DE202010003833U1 (en) * | 2009-04-01 | 2010-07-22 | Grass Gmbh & Co. Kg | hinge |
| WO2012064297A1 (en) * | 2010-10-14 | 2012-05-18 | Samet Kalip Ve Madeni Eşya Sanayi Ve Ticaret Anonim Şirketi | Slow-down mechanism placed in furniture hinge |
| CN102536016A (en) * | 2010-12-17 | 2012-07-04 | 世嘉智尼工业株式会社 | Hinge apparatus |
| CN102536013A (en) * | 2012-01-11 | 2012-07-04 | 伍志勇 | Furniture hinge |
| CN102619424A (en) * | 2012-01-11 | 2012-08-01 | 伍志勇 | Base self-locking mechanism for hinge |
| WO2013175983A1 (en) * | 2012-05-21 | 2013-11-28 | スガツネ工業株式会社 | Hinge device |
| CN203394219U (en) * | 2013-06-05 | 2014-01-15 | 广东泰明金属制品有限公司 | Built-in damper hinge |
| CN204691509U (en) * | 2015-06-18 | 2015-10-07 | 佛山市顺德区哥尼迪精密五金制造有限公司 | A kind of buffer hinge with parallel adjusting device |
| CN105909098A (en) * | 2016-06-08 | 2016-08-31 | 黑学智 | Base disassembling and assembling structure of furniture hinge |
| CN211473765U (en) * | 2019-08-16 | 2020-09-11 | 广东炬森五金精密制造有限公司 | Hinge buckle and hinge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110331908A (en) | 2019-10-15 |
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Address after: No. 2 Huishang East Road, Jiangcun Village, Leliu Street, Shunde District, Foshan City, Guangdong Province, 528000 Applicant after: Guangdong Jusen Precision Technology Co.,Ltd. Address before: 528322 plot 1-1-2 west of Gangkou Road, Leliu Zhongyong village, Shunde District, Foshan City, Guangdong Province Applicant before: GUANGDONG JUSEN HARDWARE PRECISION MANUFACTURING Co.,Ltd. |
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