Lock body for sliding door

Abstract

The utility model relates to door lock technical field especially is used for the lock body of sliding door, including lock shell, lock hook, slider device and switching linkage device, one side of lock shell is equipped with the intercommunication groove, the lock hook adjacent intercommunication groove is hinged on the inside of lock shell, slider device is located the one end of lock shell away from intercommunication groove, switching linkage device is located in lock shell, the both ends of switching linkage device are connected with slider device and lock hook respectively, the both sides of lock shell corresponding slider device all are equipped with first sliding slot, be equipped with through -hole on slider device, the both ends of through -hole are connected with two first sliding slot respectively. The lock body for sliding door disclosed in the application, the linkage between the components is more close, and there is mutual restraint force between the slider device, the switching linkage device and the lock hook, reduces the risk of lock hook loosening, improves the security of the lock body.

Description

Technical Field

[0001] This utility model relates to the field of door lock technology, and in particular to lock bodies for sliding doors. Background Technology

[0002] Existing sliding door locks typically employ a hook-type structure. When closed, a hook extends and engages with the keyhole of another sliding door or door frame. The door is locked by the hook, and unlocked by retracting the hook using a handle or knob on the door panel. However, existing sliding door locks merely use a traction block to engage the hook with the strike plate. When subjected to external impact or vibration, the lack of an effective linkage mechanism within the lock body allows the hook and strike plate to loosen, leading to the sliding door unlocking.

[0003] It is evident that existing technologies still need improvement and enhancement. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a lock body for sliding doors to solve the problem that the lock hook of existing sliding door locks is easy to loosen.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A lock body for a sliding door includes a lock case, a lock hook, a slider device, and a switching linkage device. A connecting groove is provided on one side of the lock case. The lock hook is hinged to the inner side of the lock case adjacent to the connecting groove. The slider device is located inside the lock case at one end away from the connecting groove. The switching linkage device is located inside the lock case, with its two ends connected to the slider device and the lock hook, respectively. A first sliding groove is provided on both sides of the lock case corresponding to the slider device. The slider device has a through hole, with its two ends communicating with the two first sliding grooves, respectively.

[0007] As described above, the lock body for a sliding door includes a switching linkage device comprising a fixed rod, a swing arm, a first movable connecting mechanism, a second movable connecting mechanism, and a stop mechanism. The fixed rod is disposed inside the lock housing, and the swing arm is rotatably sleeved on the fixed rod. The first movable connecting mechanism is connected to one end of the slider device and the swing arm, respectively. The second movable connecting mechanism is connected to the other end of the swing arm and the lock hook, respectively. The stop mechanism connects the inner side of the slider device and the lock housing.

[0008] As described above, the lock body for a sliding door includes a first movable connecting mechanism comprising a second slide groove and a first slide rod. The first slide rod is disposed on the slider device, the second slide groove is disposed on one end of the swing arm, and the first slide rod passes through the second slide groove.

[0009] As described above, the lock body for a sliding door includes a second movable connecting mechanism comprising an L-shaped groove and a second slide rod. The L-shaped groove is located on the other end of the swing arm, and the second slide rod is located on the lock hook and passes through the L-shaped groove. The stopping mechanism includes a rotating column, a locking assembly, a swing rod, a fixing block, a locking groove, and a spring. The rotating column is located on the slider device, the locking assembly is fitted onto the rotating column, the fixing block is located on the inner side of the lock housing, and the locking groove is located on the fixing block. One end of the swing rod is connected to the locking assembly, and the other end of the swing rod passes through the locking groove. The spring is fitted onto the swing rod, and both ends of the spring abut against the locking assembly and the fixing block, respectively.

[0010] As described above, the lock body for a sliding door has an arc-shaped groove on the inner side of the lock housing, and the end of the second slide rod away from the lock hook is inserted into the arc-shaped groove.

[0011] As described above, the lock body for a sliding door includes a slider device comprising a slider, two guide posts, and an extension block. The two guide posts are respectively disposed at both ends of the slider, and both ends of each guide post are respectively engaged with the lock housing. The extension block is disposed on the side of the slider facing the switching linkage device and is connected to the switching linkage device. The through hole is disposed on the slider.

[0012] As described above, in the lock body for a sliding door, the slider has protruding rings on both sides corresponding to the through hole, and the two protruding rings are respectively inserted into the two first sliding grooves.

[0013] As described above, the lock body for a sliding door includes a lock body, a lock cover, a plug block, a plug groove, two plug posts, and two plug holes. Two first sliding grooves are respectively located on the lock body and the lock cover. A connecting groove is located on one side of the lock body. The plug groove is located adjacent to the connecting groove on the inner side of the lock body. The plug block is located on one side of the lock cover, and the plug block and the plug groove are plugged into each other. Both plug posts are located on the end of the lock body away from the connecting groove and on the side of the lock body facing the lock cover. Two plug holes are located on the end of the lock cover away from the plug block, and each plug post is plugged into one of the two plug holes.

[0014] As described above, the lock body for a sliding door has a groove on the edge of the lock housing body away from the insertion slot.

[0015] Beneficial effects:

[0016] This utility model discloses a lock body for sliding doors, comprising a lock shell, a lock hook, a slider device, and a switching linkage device. A connecting groove is provided on one side of the lock shell. The lock hook is hinged to the inner side of the lock shell adjacent to the connecting groove. First sliding grooves are provided on both sides of the lock shell corresponding to the slider device. A through hole is provided on the slider device. In actual use, a lever on the sliding door lock's traction block passes through the through hole. The first sliding groove guides and limits the movement direction of the lever, causing the lever to move the slider device. The lock hook is hinged within the lock shell. The switching linkage device links the slider device and the lock hook, converting the translation of the slider device into the rotation of the lock hook. The lock hook rotates out or into the connecting groove, thereby realizing the locking and unlocking functions of the sliding door lock. The lock body for sliding doors disclosed in this application has tighter linkage between its components, and there are mutual restraining forces between the slider device, the switching linkage device, and the lock hook, reducing the risk of the lock hook loosening and improving the security of the lock body. Attached Figure Description

[0017] Figure 1 A schematic diagram of the lock body provided by this utility model;

[0018] Figure 2 Exploded view of the lock body provided by this utility model;

[0019] Figure 3 An exploded view of the lock body provided by this utility model from another angle;

[0020] Reference numerals: 1. Lock case; 11. Communicating groove; 12. First sliding groove; 13. Arc-shaped groove; 14. Lock case body; 15. Lock case cover; 16. Insertion block; 17. Insertion groove; 18. Insertion post; 19. Insertion hole; 10. Groove; 2. Lock hook; 3. Sliding block device; 31. Through hole; 32. Sliding block; 33. Guide post; 34. Extension block; 35. Protruding ring; 4. Switching linkage device; 41. Fixed post; 42. Swing arm; 43. First movable connecting mechanism; 431. Second sliding groove; 432. First sliding rod; 44. Second movable connecting mechanism; 441. L-shaped groove; 442. Second sliding rod; 45. Stopping mechanism; 451. Rotating post; 452. Card set; 453. Swing rod; 454. Fixed block; 455. Card slot; 456. Spring. Detailed Implementation

[0021] This utility model provides a lock body for a sliding door. To make the purpose, technical solution and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments.

[0022] In the description of this utility model, it should be understood that the terms "top" and other terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and should not be construed as limiting this utility model; in addition, the terms "installation" and "connection" should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] like Figure 1-3 As shown in the embodiment of this application, a lock body for a sliding door is proposed, including a lock shell 1, a lock hook 2, a slider device 3, and a switching linkage device 4. A connecting groove 11 is provided on one side of the lock shell 1. The lock hook 2 is hinged to the inner side of the lock shell 1 adjacent to the connecting groove 11. The slider device 3 is located inside the lock shell 1 at one end away from the connecting groove 11. The switching linkage device 4 is located inside the lock shell 1, and its two ends are respectively connected to the slider device 3 and the lock hook 2. The lock shell 1 has first sliding grooves 12 on both sides corresponding to the slider device 3. The slider device 3 has through holes 31, and the two ends of the through holes 31 are respectively connected to the two first sliding grooves 12.

[0024] This utility model discloses a lock body for a sliding door, comprising a lock housing 1, a lock hook 2, a slider device 3, and a switching linkage device 4. A connecting groove 11 is provided on one side of the lock housing 1. The lock hook 2 is hinged to the inner side of the lock housing 1 adjacent to the connecting groove 11. First sliding grooves 12 are provided on both sides of the lock housing 1 corresponding to the slider device 3. A through hole 31 is provided on the slider device 3. In actual use, a lever on the sliding door lock traction block passes through the through hole 31. The first sliding grooves 12 guide and limit the movement direction of the lever, causing the lever to move the slider... The block device 3 moves, and the lock hook 2 is hinged inside the lock housing 1. The switching linkage device 4 links the slider device 3 and the lock hook 2 to convert the translation of the slider device 3 into the rotation of the lock hook 2. The lock hook 2 rotates out or into the communicating groove 11, thereby realizing the locking and unlocking functions of the sliding door lock. The lock body for sliding doors disclosed in this application has tighter linkage between the components, and there is mutual restraint between the slider device 3, the switching linkage device 4 and the lock hook 2, which reduces the risk of the lock hook 2 loosening and improves the security of the lock body.

[0025] The switching linkage device 4 includes a fixed post 41, a swing arm 42, a first movable connecting mechanism 43, a second movable connecting mechanism 44, and a stop mechanism 45. The fixed post 41 is located inside the lock housing 1, and the swing arm 42 is rotatably sleeved on the fixed post 41. The first movable connecting mechanism 43 is connected to one end of the slider device 3 and the swing arm 42, respectively. The second movable connecting mechanism 44 is connected to the other end of the swing arm 42 and the lock hook 2, respectively. The stop mechanism 45 connects the inner side of the slider device 3 and the lock housing 1. The fixed post 41 provides a stable rotation support point for the swing arm 42, and converts the movement of the slider device 3 into the rotation of the swing arm 42 through the first movable connecting mechanism 43. The second movable connecting mechanism 44 drives the lock hook 2 to rotate. The rotation of the lock hook 2 has locked and unlocked states. When the lock hook 2 is in either state, the stop mechanism 45 restricts the movement of the slider device 3, thereby restricting the rotation of the lock hook 2 and ensuring the stability of the lock body in the locked and unlocked states.

[0026] The first movable connecting mechanism 43 includes a second slide groove 431 and a first slide rod 432. The first slide rod 432 is disposed on the slider device 3, and the second slide groove 431 is disposed on one end of the swing arm 42. The first slide rod 432 passes through the second slide groove 431 and moves along the second slide groove 431. The second slide groove 431 guides and restricts the movement of the first slide rod 432, and compensates for changes in the distance between the first slide rod 432 and the fixed column 41 during the linkage process, thus ensuring the accuracy and stability of motion transmission.

[0027] The second movable connecting mechanism 44 includes an L-shaped groove 441 and a second slide rod 442. The L-shaped groove 441 is located on the other end of the swing arm 42, and the second slide rod 442 is located on the locking hook 2. The second slide rod 442 passes through the L-shaped groove 441. The stopping mechanism 45 includes a rotating column 451, a locking sleeve 452, a swing rod 453, a fixing block 454, a slot 455, and a spring 456. The rotating column 451 is located on the slider device 3, the locking sleeve 452 is fitted onto the rotating column 451, the fixing block 454 is located on the inner side of the lock housing 1, and the slot 455 is located on the fixing block 454. One end of the swing rod 453 is connected to the card assembly 452, and the other end of the swing rod 453 passes through the card slot 455. The spring 456 is sleeved on the swing rod 453, and the two ends of the spring 456 abut against the card assembly 452 and the fixing block 454 respectively. When the second slide rod 442 is located at either end of the L-shaped groove 441, the lock hook 2 is in a locked or unlocked state. At the same time, one end of the spring 456 abuts against the fixing block 454, and the other end abuts against the card assembly 452. The elasticity of the spring 456 restricts the movement of the slider device 3, prevents the lock hook 2 from being accidentally loosened, and improves the security of the lock body.

[0028] The inner side of the lock housing 1 is provided with an arc-shaped groove 13. The end of the second slide rod 442 away from the lock hook 2 is inserted into the arc-shaped groove 13, providing additional guidance and limiting for the second slide rod 442, ensuring the stability of the switching linkage device 4 during the linkage process, and dispersing the force of the second slide rod 442 on the swing arm 42, reducing wear between components.

[0029] The slider device 3 includes a slider 32, two guide posts 33, and an extension block 34. The two guide posts 33 are respectively inserted at both ends of the slider 32, and both ends of each guide post 33 are respectively engaged with the lock housing 1. The extension block 34 is located on the side of the slider 32 facing the switching linkage device 4 and is connected to the switching linkage device 4. The through hole 31 is located on the slider 32. The two guide posts 33 restrict the movement direction of the slider 32, ensuring that the slider 32 moves smoothly, so that the operation of the lock body is smoother. The slider 32 is provided with protruding rings 35 on both sides corresponding to the through hole 31. The two protruding rings 35 are respectively inserted into the two first sliding grooves 12, which enhances the restriction on the movement direction of the slider 32 in the lock housing 1, and further improves the stability and reliability of the lock body operation.

[0030] The lock case 1 includes a lock case body 14, a lock case cover 15, a plug block 16, a plug groove 17, two plug posts 18, and two plug holes 19. Two first sliding grooves 12 are respectively provided on the lock case body 14 and the lock case cover 15. A connecting groove 11 is provided on one side of the lock case body 14. The plug groove 17 is adjacent to the connecting groove 11 and is located on the inner side of the lock case body 14. The plug block 16 is provided on one side of the lock case cover 15, and the plug block 16 and the plug groove 17 are plugged into each other. Both plug posts 18 are located on the end of the lock case body 14 away from the connecting groove 11. Located on the side of the lock body 14 facing the lock cover 15, two insertion holes 19 are respectively located on the end of the lock cover 15 away from the insertion block 16. Two insertion posts 18 are respectively inserted into the two insertion holes 19. The split structure facilitates the assembly of the lock body and the replacement of internal parts. The overall strength and stability of the lock body are ensured by the cooperation of the insertion block 16 and the insertion groove 17, as well as the cooperation of the two insertion posts 18 and the two insertion holes 19. A groove 10 is provided on the edge of the lock body 14 away from the insertion groove 17 to facilitate the operation of tools or hands when disassembling the lock body.

[0031] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of this utility model, and all such substitutions or changes should fall within the protection scope of this utility model.

Claims

1. A lock body for a sliding door, characterized in that The lock includes a lock housing (1), a lock hook (2), a slider device (3), and a switching linkage device (4). A connecting groove (11) is provided on one side of the lock housing (1). The lock hook (2) is hinged to the inner side of the lock housing (1) adjacent to the connecting groove (11). The slider device (3) is located inside the lock housing (1) at one end away from the connecting groove (11). The switching linkage device (4) is located inside the lock housing (1). The two ends of the switching linkage device (4) are respectively connected to the slider device (3) and the lock hook (2). The lock housing (1) has first sliding grooves (12) on both sides corresponding to the slider device (3). The slider device (3) has through holes (31). The two ends of the through holes (31) are respectively connected to the two first sliding grooves (12).

2. The lock body for a sliding door according to claim 1, characterized in that, The switching linkage device (4) includes a fixed column (41), a swing arm (42), a first movable connecting mechanism (43), a second movable connecting mechanism (44), and a stop mechanism (45). The fixed column (41) is located inside the lock housing (1). The swing arm (42) is rotatably sleeved on the fixed column (41). The first movable connecting mechanism (43) is connected to one end of the slider device (3) and the swing arm (42). The second movable connecting mechanism (44) is connected to the other end of the swing arm (42) and the lock hook (2). The stop mechanism (45) is connected to the inner side of the slider device (3) and the lock housing (1).

3. The lock body for a sliding door according to claim 2, characterized in that, The first movable connection mechanism (43) includes a second slide groove (431) and a first slide rod (432). The first slide rod (432) is disposed on the slider device (3), and the second slide groove (431) is disposed on one end of the swing arm (42). The first slide rod (432) passes through the second slide groove (431).

4. The lock body for a sliding door according to claim 2, characterized in that, The second movable connecting mechanism (44) includes an L-shaped groove (441) and a second slide rod (442). The L-shaped groove (441) is located on the other end of the swing arm (42), and the second slide rod (442) is located on the locking hook (2). The second slide rod (442) passes through the L-shaped groove (441). The stopping mechanism (45) includes a rotating column (451), a locking assembly (452), a swing rod (453), a fixing block (454), a locking groove (455), and a spring (456). The rotating column (451) is located on the slider device ( 3) The card assembly (452) is sleeved on the rotating column (451), the fixing block (454) is located on the inner side of the lock housing (1), the card slot (455) is located on the fixing block (454), one end of the swing rod (453) is connected to the card assembly (452), the other end of the swing rod (453) passes through the card slot (455), the spring (456) is sleeved on the swing rod (453), and the two ends of the spring (456) abut against the card assembly (452) and the fixing block (454) respectively.

5. The lockset for a sliding door of claim 4, wherein, The inner side of the lock housing (1) is provided with an arc-shaped groove (13), and the end of the second slide rod (442) away from the lock hook (2) is inserted into the arc-shaped groove (13).

6. The lock body for a sliding door of claim 1, wherein, The slider device (3) includes a slider (32), two guide posts (33) and an extension block (34). The two guide posts (33) are respectively installed on both ends of the slider (32). The two ends of each guide post (33) are respectively engaged with the lock housing (1). The extension block (34) is located on the side of the slider (32) facing the switching linkage device (4) and is connected to the switching linkage device (4). The through hole (31) is located on the slider (32).

7. The lockset for a sliding door of claim 6, wherein, The slider (32) is provided with protruding rings (35) on both sides of the through hole (31), and the two protruding rings (35) are respectively inserted into the two first sliding grooves (12).

8. The lock body for a sliding door of claim 1, wherein, The lock case (1) includes a lock case body (14), a lock case cover (15), a plug-in block (16), a plug-in groove (17), two plug-in pins (18), and two plug-in holes (19). Two first sliding grooves (12) are respectively provided on the lock case body (14) and the lock case cover (15). The connecting groove (11) is provided on one side of the lock case body (14). The plug-in groove (17) is located adjacent to the connecting groove (11) on the inner side of the lock case body (14). The plug-in block (16) is located on the lock case cover (15). On one side of 5), the plug block (16) and the plug groove (17) are plugged in. Two plug posts (18) are provided on the end of the lock body (14) away from the connecting groove (11). Two plug posts (18) are provided on the side of the lock body (14) facing the lock cover (15). Two plug holes (19) are respectively provided on the end of the lock cover (15) away from the plug block (16). Two plug posts (18) are respectively plugged into the two plug holes (19) one by one.

9. The lockset for a sliding door of claim 8, wherein, The lock body (14) has a groove (10) on the edge of the end away from the insertion slot (17).

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