CN112459625A - Split door lock - Google Patents
Split door lock Download PDFInfo
- Publication number
- CN112459625A CN112459625A CN202011459624.1A CN202011459624A CN112459625A CN 112459625 A CN112459625 A CN 112459625A CN 202011459624 A CN202011459624 A CN 202011459624A CN 112459625 A CN112459625 A CN 112459625A
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- CN
- China
- Prior art keywords
- lock
- hook
- mounting hole
- limiting
- guide part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 230000033001 locomotion Effects 0.000 claims abstract description 27
- 230000006978 adaptation Effects 0.000 claims abstract description 6
- 230000000694 effects Effects 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 2
- 210000001503 joint Anatomy 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B65/00—Locks or fastenings for special use
- E05B65/0003—Locks or fastenings for special use for locking a plurality of wings, e.g. simultaneously
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
- E05B15/10—Bolts of locks or night latches
Landscapes
- Lock And Its Accessories (AREA)
Abstract
The invention discloses a split door lock, which comprises a lock body, wherein a left lock hook and a right lock hook which can move left and right relatively are arranged on the lock body, the left lock hook comprises a left hook part and a left guide part connected with the root part of the left hook part, the right lock hook comprises a right hook part and a right guide part connected with the root part of the right hook part, and a lock pin piece for limiting the movement of at least one of the left lock hook and the right lock hook and a lock cylinder for controlling the movement of the lock pin piece are arranged on the lock body; through the design have the first mounting hole and the second mounting hole that the disalignment dislocation set up side by side on the lock body, extend and have the opening that sets up left about the first mounting hole, extend and have the opening that sets up right about the second mounting hole, when left guide part adaptation in first mounting hole, and when right guide part adaptation was in the second mounting hole, left latch hook and right latch hook just can stagger, thereby correspond with the left and right door handle that the position staggered relatively, person of facilitating the use pins left and right door handle.
Description
Technical Field
The invention relates to the technical field of locks, in particular to a split door lock.
Background
The conventional side-by-side door lock mainly comprises a left locking hook and a right locking hook which are oppositely arranged, and the left locking hook and the right locking hook a left door handle and a right door handle during locking. However, such a structure cannot adapt to some specific use scenarios, for example, when the positions of the left and right door handles are staggered relatively, the left locking hook and the right locking hook of the split door lock cannot hook the left and right door handles correspondingly, which causes inconvenience to users.
Disclosure of Invention
In view of the above, the present invention is directed to a door lock, which is convenient for a user to lock left and right door handles with staggered positions.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a to open lock, including the lock body, be equipped with left latch hook and right latch hook that can control relative motion on this lock body, this left latch hook includes left hook portion and the left guide part of being connected with the root of left hook portion, this right latch hook includes right hook portion and the right guide part of being connected with the root of right hook portion, be equipped with on this lock body and be used for restricting at least one movable lockpin spare in left latch hook and the right latch hook and control the lock core of lockpin spare activity, first mounting hole and the second mounting hole that the disalignment dislocation set up side by side have on this lock body, extend and have the opening that sets up left about the first mounting hole, extend and have the opening that sets up right about the second mounting hole, the left guide part adaptation of aforementioned left latch hook is in first mounting hole, the right guide part adaptation of right latch hook is in the second mounting hole.
Preferably, the first mounting hole and the second mounting hole are arranged side by side up and down parallel to the surface of the door panel of the door to be locked.
Preferably, the first mounting hole and the second mounting hole are arranged side by side in a direction of a normal line of a surface of a door panel of the door to be locked.
Preferably, the first mounting hole or/and the second mounting hole has a non-circular cross section, and correspondingly, the left guide portion or/and the right guide portion has a non-circular cross section.
Preferably, in the locked state, the outer ends of the left and right hook portions are disposed in abutting relation in the extending direction, or the outer end extension of the left hook portion and the outer end extension of the right hook portion are overlapped with each other.
As a preferred scheme, the left guide part is provided with a plurality of left limiting parts which are distributed at intervals along the length direction, the lock body is provided with a fixing structure which is correspondingly matched with any left limiting part to limit the movement of the left lock hook, the right guide part is provided with a plurality of right limiting parts which are distributed at intervals along the length direction, and when the lock body is locked, the lock pin piece is matched with the right limiting parts to limit the movement of the right lock hook.
Preferably, the fixing structure includes a fixing hole located on the lock body and a limiting member disposed in the fixing hole and engaged with any one of the left limiting portions, and an outer opening of the fixing hole is disposed toward the door panel.
Preferably, the fixing structure includes a fixing hole on the lock body and a limiting member disposed in the fixing hole and engaged with any one of the left limiting portions, and a blocking object capable of preventing manual detachment or damage is disposed at an outer opening of the fixing hole.
As a preferred scheme, a plurality of left limiting parts distributed at intervals along the length direction of the left guide part are arranged on the left guide part, a plurality of right limiting parts distributed at intervals along the length direction of the right guide part are arranged on the right guide part, when the lock is closed, the lock pin piece is matched with the left limiting parts to limit the movement of the left lock hook, and meanwhile, the lock pin piece is also matched with the right limiting parts to limit the movement of the right lock hook.
Preferably, the lock pin member comprises a left lock pin for limiting the movement of the left lock hook and a right lock pin for limiting the movement of the right lock hook, and the lock cylinder controls the movement of the left lock pin and the right lock pin through the control assembly.
Compared with the prior art, the invention has obvious advantages and beneficial effects, and particularly, according to the technical scheme, the lock body is mainly provided with the first mounting hole and the second mounting hole which are arranged side by side in a non-coaxial staggered manner, the first mounting hole extends leftwards and rightwards and is provided with the opening arranged rightwards, when the left guide part is matched in the first mounting hole and the right guide part is matched in the second mounting hole, the left locking hook and the right locking hook can be staggered and correspond to the left door handle and the right door handle which are staggered relatively, so that a user can lock the left door handle and the right door handle conveniently.
To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is a schematic assembly structure of a first embodiment of the present invention;
FIG. 2 is an exploded view of a first embodiment of the present invention;
FIG. 3 is a rear view of the first embodiment of the present invention;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
FIG. 5 is an enlarged view at A in FIG. 4;
FIG. 6 is a schematic view of an assembly structure of the second embodiment of the present invention;
FIG. 7 is a bottom view of a second embodiment of the present invention;
FIG. 8 is a cross-sectional view A-A of FIG. 7;
FIG. 9 is a partially exploded view of a third embodiment of the present invention;
FIG. 10 is a schematic structural diagram of a fourth embodiment of the present invention;
FIG. 11 is a schematic structural diagram of a fifth embodiment of the present invention;
FIG. 12 is a schematic structural diagram of a sixth embodiment of the present invention;
FIG. 13 is an exploded view of a seventh embodiment of the present invention;
FIG. 14 is an enlarged view at A of FIG. 13;
FIG. 15 is a partial schematic structural view of a seventh embodiment of the present invention;
FIG. 16 is a schematic structural diagram of an eighth embodiment of the present invention;
FIG. 17 is a schematic structural diagram of a ninth embodiment of the present invention.
The attached drawings indicate the following:
10. lock body 101 and first mounting hole
102. Second mounting hole 103, fixing hole
104. Lock cylinder mounting part 105, storage tank
11. Lock pin member 111, left lock pin
112. Right lockpin 12, lock core
121. First connecting part 13 and limiting part
14. Plug 15, return spring
16. Rotating shifting block 20 and left locking hook
21. Left hook part 22, left guide part
221. Left limit part 30 and right lock hook
31. Right hook part 32, right guide part
321. Right stopper 40, control assembly
41. Left rotating shifting block 42 and right rotating shifting block
43. Transmission member 431 and second connecting part
44. Left driven gear 45, right driven gear.
Detailed Description
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the positions or elements referred to must have specific orientations, be constructed and operated in specific orientations, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.
Referring to fig. 1 to 5, a specific structure of a first embodiment of the present invention is shown, which includes a lock body 10, a left locking hook 20 and a right locking hook 30 are disposed on the lock body 10, the left locking hook 20 includes a left hook portion 21 and a left guide portion 22 connected to a root portion of the left hook portion 21, the left hook portion 21 is integrally connected to the left guide portion 22, the right locking hook 30 includes a right hook portion 31 and a right guide portion 32 connected to a root portion of the right hook portion 31, the right hook portion 31 is integrally connected to the right guide portion 32, the lock body 10 is disposed with a locking pin member 11 for limiting at least one of the left locking hook 20 and the right locking hook 30 from moving and a key cylinder 12 for controlling the movement of the locking pin member 11, the lock body 10 has a first installation hole 101 and a second installation hole 102 disposed side by side with different axes, in this embodiment, the first installation hole 101 is a through hole or/and the second installation hole 102 is a through hole, the first mounting hole 101 and the second mounting hole 102 are arranged side by side up and down in parallel to the surface of the door panel of the door to be locked, the first mounting hole 101 extends left and right and has an opening arranged leftward, the second mounting hole 102 extends left and right and has an opening arranged rightward, the left guide portion 22 of the left locking hook 20 is fitted in the first mounting hole 101, the right guide portion 32 of the right locking hook 30 is fitted in the second mounting hole 102, as an alternative, the left guide portion 22 may be fitted in the second mounting hole 102, and the right guide portion 32 may be fitted in the first mounting hole 101.
In this embodiment, the left guide portion 22 has a plurality of left position-limiting portions 221 distributed at intervals along the length direction thereof, and the lock body 10 is provided with a fixing structure correspondingly matched with any one of the left position-limiting portions 221 so as to limit the movement of the left locking hook 20; the fixing structure comprises a fixing hole 103 positioned on the lock body 10 and a limiting piece 13 which is arranged in the fixing hole 103 and is clamped with any left limiting part 221, the fixing hole 103 is a screw hole, the limiting piece 13 is a screw screwed in the screw hole, the left limiting part 221 is a through hole, before the lock is used, a user can adjust the position of the left locking hook 20 on the lock body 10 according to the actual distance of a left handle and a right handle of a door, and then the left locking hook 20 is fixed by matching the fixing structure on the lock body 10 with the left limiting part 221 on the left locking hook 20, so that the position of the left locking hook 20 does not need to be adjusted when the door lock is opened or closed next time, and the lock is very convenient; the outer opening of the fixing hole 103 is further provided with a plug 14 capable of preventing manual disassembly or damage, the plug 14 is a metal cover, the metal cover is in interference fit with the fixing hole 103, the outer opening of the fixing hole 103 faces the door panel, when the outer opening of the fixing hole 103 faces the door panel, in a locked state, there is not enough space for a person to disassemble the limiting piece 13 from the fixing hole 103, so that safety is improved, and after the outer opening of the fixing hole 103 is blocked through the plug 14, even if the outer opening of the fixing hole 103 does not face the door panel, an outsider cannot disassemble the limiting piece 13, and safety can be improved. The right guide portion 32 is provided with a plurality of right stoppers 321 spaced apart along the length direction thereof, and the locking pin 11 cooperates with the right stoppers 321 to restrict the movement of the right locking hook 30 during locking.
In addition, the lock body 10 is provided with a lock cylinder mounting part 104, the lock cylinder 12 is mounted in the lock cylinder mounting part 104, a key socket of the lock cylinder 12 is positioned at the left side/right side of the lock cylinder mounting part 104, the lock body 10 is provided with a containing groove 105, the lock pin member 11 is mounted in the containing groove 105, a return spring 15 enabling the lock pin member 11 to be always towards at least one of the left guide part 22 and the right guide part 22 is arranged between the lock pin member 11 and the bottom of the containing groove 105, and one end of the lock cylinder 12 is provided with a rotary shifting block 16 controlling the movement of the lock pin member 11. The minimum distance of the length of the clamping space between the right hook part 31 and the left hook part 21 is 120 mm and 150 mm.
As shown in fig. 6 to 8, the second embodiment of the present invention is different from the first embodiment in that the first mounting hole 101 and the second mounting hole 102 are arranged side by side in the front-rear direction of the normal direction of the surface of the door panel of the door to be locked, and the key insertion opening of the key cylinder 12 is arranged at the side of the key cylinder mounting portion 104 away from the door panel, so that the key insertion opening of the key cylinder 12 faces the user when in use, and the user can insert the key into the key insertion opening of the key cylinder 12 conveniently.
As shown in fig. 9, the third embodiment of the present disclosure differs from the second embodiment in that the left hook portion 21 is detachably connected to the left guide portion 22, and the right hook portion 31 is detachably connected to the right guide portion 32.
As shown in fig. 10, the fourth embodiment of the present disclosure differs from the third embodiment in that the left stopper 221 is a groove, the cross sections of the first mounting hole 101 and the second mounting hole 102 are hexagons, and correspondingly, the cross sections of the left guide 22 and the right guide 32 are hexagons, and the non-circular design can prevent the left locking hook 20 and the right locking hook 30 from rotating.
As shown in fig. 11, the fifth embodiment of the present disclosure differs from the third embodiment in that the left limiting portion 221 is a groove, the cross sections of the first mounting hole 101 and the second mounting hole 102 are quadrilateral, and correspondingly, the cross sections of the left guide portion 22 and the right guide portion 32 are quadrilateral, and the non-circular design can prevent the left locking hook 20 and the right locking hook 30 from rotating.
As shown in fig. 12, the sixth embodiment of the present disclosure differs from the first embodiment in that the left stopper portion 221 is an annular groove.
As shown in fig. 13 to 15, the seventh embodiment of the present disclosure is different from the first embodiment in that a plurality of left limiting portions 221 are disposed on the left guide portion 22 and spaced apart along the length direction thereof, and a plurality of right limiting portions 321 are disposed on the right guide portion 32 and spaced apart along the length direction thereof, when the lock is closed, the lock pin 11 cooperates with the left limiting portions 221 to limit the movement of the left lock hook 20, and simultaneously, the lock pin 11 cooperates with the right limiting portions 321 to limit the movement of the right lock hook 30, such a design can facilitate a user to adjust the positions of the left lock hook 20 and the right lock hook 30, thereby adjusting the length of the clamping space.
Specifically, the latch member 11 includes a left latch pin 111 for restricting the movement of the left latch hook 20 and a right latch pin 112 for restricting the movement of the right latch hook 30, and the lock cylinder 12 controls the movement of the left latch pin 111 and the right latch pin 112 through the control assembly 40. The control assembly 40 includes a left rotation shifting block 41 for driving the left lock pin 111 to move, a right rotation shifting block 42 for driving the right lock pin 112 to move, and a transmission member 43 for driving the left rotation shifting block 41 and the right rotation shifting block 42 to rotate, the transmission member 43 is connected to the lock cylinder 12 and can be driven by the lock cylinder 12, the left rotation shifting block 41 is provided with a left driven gear 44, the right rotation shifting block 42 is provided with a right driven gear 45, and the transmission member 43 is engaged with the left driven gear 44 and the right driven gear 45 and drives the left driven gear 44 and the right driven gear 45 to rotate. In this embodiment, the transmission member 43 is a rack, the lock cylinder 12 has a first connection portion 121 that can move back and forth along an arc track in the process of opening and closing the lock cylinder 12, the first connection portion 121 is a convex column, the first connection portion 121 is offset from the rotating shaft of the lock cylinder 12, the rack has a second connection portion 431 that is connected with the first connection portion 121 and can be driven by the first connection portion 121 to move back and forth along a straight line, and the second connection portion 431 is a track sliding slot that is adapted to the convex column; alternatively, the transmission member 43 is a driving gear, so that the driving gear is meshed with the left driven gear 44 and the right driven gear 45 to drive the left driven gear 44 and the right driven gear 45 to rotate.
As shown in fig. 16, the eighth embodiment of the present disclosure differs from the first embodiment in that the outer end extension of the left hook portion 21 and the outer end extension of the right hook portion 31 overlap each other in the locked state.
As shown in fig. 17, the ninth embodiment of the present disclosure differs from the second embodiment in that the outer ends of the left hook portion 21 and the right hook portion 31 are disposed in abutment in the extending direction in the locked state.
In summary, the lock body is provided with the first mounting hole and the second mounting hole which are arranged side by side and are not coaxial in a staggered manner, the first mounting hole extends leftwards and rightwards and is provided with the opening arranged leftwards, the second mounting hole extends leftwards and rightwards and is provided with the opening arranged rightwards, when the left guide part is matched in the first mounting hole and the right guide part is matched in the second mounting hole, the left locking hook and the right locking hook can be staggered, so that the left locking hook and the right locking hook correspond to the left door handle and the right door handle which are staggered relatively, and a user can conveniently lock the left door handle and the right door handle.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.
Claims (10)
1. A split door lock characterized by: including the lock body, be equipped with left latch hook and right latch hook that can control relative motion on this lock body, this left latch hook includes left hook portion and the left guide part of being connected with the root of left hook portion, this right latch hook includes right hook portion and the right guide part of being connected with the root of right hook portion, be equipped with the lockpin spare that is arranged in restricting at least one activity in left latch hook and the right latch hook on this lock body and control the lock core that the lockpin spare was movable, first mounting hole and the second mounting hole that has the disalignment dislocation set up side by side have on this lock body, extend and have the opening that sets up left about the first mounting hole, extend and have the opening that sets up right about the second mounting hole, the left guide part adaptation of aforementioned left latch hook is in first mounting hole, the right guide part adaptation of right latch hook is in the second mounting hole.
2. A split door lock according to claim 1, wherein: the first mounting hole and the second mounting hole are arranged in parallel up and down in parallel with the surface of the door plate of the door to be locked.
3. A split door lock according to claim 1, wherein: the first mounting hole and the second mounting hole are arranged side by side in the front-back direction along the normal direction of the surface of the door panel of the door to be locked.
4. A split door lock according to claim 1, wherein: the cross sections of the first mounting hole or/and the second mounting hole are non-circular, and correspondingly, the cross sections of the left guide part or/and the right guide part are non-circular.
5. A split door lock according to claim 1, wherein: in the locked state, the outer end parts of the left hook part and the right hook part are in butt joint in the extending direction, or the outer end extending part of the left hook part and the outer end extending part of the right hook part are overlapped with each other.
6. A split door lock according to claim 1, wherein: the lock body is provided with a plurality of left limiting parts distributed at intervals along the length direction, a fixing structure which is correspondingly matched with any left limiting part to limit the movement of the left lock hook is arranged on the lock body, a plurality of right limiting parts distributed at intervals along the length direction are arranged on the right guiding part, and when the lock body is locked, the lock pin piece is matched with the right limiting part to limit the movement of the right lock hook.
7. The split door lock as claimed in claim 6, wherein: the fixing structure comprises a fixing hole positioned on the lock body and a limiting part arranged in the fixing hole and clamped with any left limiting part, and the outer opening of the fixing hole is arranged towards the door panel.
8. The split door lock as claimed in claim 6, wherein: the fixing structure comprises a fixing hole positioned on the lock body and a limiting part arranged in the fixing hole and clamped with any left limiting part, and a blocking object capable of preventing manual disassembly or damage is arranged at an opening at the outer side of the fixing hole.
9. A split door lock according to claim 1, wherein: the left guide part is provided with a plurality of left limiting parts distributed at intervals along the length direction of the left guide part, the right guide part is provided with a plurality of right limiting parts distributed at intervals along the length direction of the right guide part, when the lock is closed, the lock pin piece is matched with the left limiting part to limit the movement of the left lock hook, and meanwhile, the lock pin piece is also matched with the right limiting part to limit the movement of the right lock hook.
10. A split door lock according to claim 9, wherein: the lock pin piece comprises a left lock pin used for limiting the movement of the left lock hook and a right lock pin used for limiting the movement of the right lock hook, and the lock cylinder controls the movement of the left lock pin and the right lock pin through the control assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011459624.1A CN112459625A (en) | 2020-12-11 | 2020-12-11 | Split door lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011459624.1A CN112459625A (en) | 2020-12-11 | 2020-12-11 | Split door lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112459625A true CN112459625A (en) | 2021-03-09 |
Family
ID=74803504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011459624.1A Pending CN112459625A (en) | 2020-12-11 | 2020-12-11 | Split door lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112459625A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4848110A (en) * | 1988-08-11 | 1989-07-18 | Kuo Li T | Adjustable car lock device |
| EP1254820A2 (en) * | 2001-05-04 | 2002-11-06 | Westinghouse Air Brake Technologies Corporation | Central lock mechanism |
| JP3208192U (en) * | 2016-08-01 | 2016-12-28 | 東莞市イー豊鎖業有限公司 | Locking device for slide fastener |
| CN111593950A (en) * | 2020-05-14 | 2020-08-28 | 东莞市兴鑫科技有限公司 | Multifunctional lock |
| CN214498682U (en) * | 2020-12-11 | 2021-10-26 | 东莞市兴鑫科技有限公司 | Split door lock |
-
2020
- 2020-12-11 CN CN202011459624.1A patent/CN112459625A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4848110A (en) * | 1988-08-11 | 1989-07-18 | Kuo Li T | Adjustable car lock device |
| EP1254820A2 (en) * | 2001-05-04 | 2002-11-06 | Westinghouse Air Brake Technologies Corporation | Central lock mechanism |
| JP3208192U (en) * | 2016-08-01 | 2016-12-28 | 東莞市イー豊鎖業有限公司 | Locking device for slide fastener |
| CN111593950A (en) * | 2020-05-14 | 2020-08-28 | 东莞市兴鑫科技有限公司 | Multifunctional lock |
| CN214498682U (en) * | 2020-12-11 | 2021-10-26 | 东莞市兴鑫科技有限公司 | Split door lock |
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