Lock bar type sliding door lock

Abstract

The utility model relates to the technical field of door locks, in particular to a lock rod type sliding door lock, which comprises a lock seat, a lock rod, a push rod and a push rod, the transmission seat comprises a third lock shell, a shifting block device and a reversing linkage device, wherein the shifting block device and the reversing linkage device are arranged in the third lock shell. The lock rod seat comprises a fourth lock shell, a communicating groove and a lock rod; and the locking seat is arranged adjacent to the locking rod seat, and a locking hole corresponding to the communicating groove is formed in the side, facing the locking rod seat, of the locking seat. According to the lock rod type sliding door lock, the transmission structure of the sliding door lock is simple and ingenious, further, the structural stability of the sliding door lock is improved, the sliding door lock is not prone to being damaged, normal use of the door lock is not affected when a certain degree of abrasion exists, and the difficulty of the door lock during installation or maintenance and the technical requirements for assembling workers are reduced.

Description

Technical Field

[0001] This utility model relates to the field of door lock technology, and in particular to a lever-type push-pull door lock. Background Technology

[0002] Existing sliding door locks typically use a hook-type structure, where a hook extends and engages with the keyhole of another sliding door or door frame when closed. The door is locked by the hook, and unlocked by retracting the hook using a handle or knob on the door panel. However, the force-bearing area between the hook and the keyhole is relatively small, making the hook prone to deformation or wear, thus affecting the locking effect on the door.

[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 lever-type push-pull door lock to solve the problem of easy wear of existing hook-type push-pull door locks.

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

[0006] A lever-type push-pull door lock, comprising:

[0007] The lock base includes a first lock housing, a second lock housing, a locking device, and a lever device. The first lock housing and the second lock housing are arranged opposite to each other. The locking device is located on the side of the first lock housing facing the second lock housing. The two ends of the lever device are slidably connected to the first lock housing and the second lock housing, respectively.

[0008] A transmission base, the transmission base including a third lock housing, and a lever device and a reversing linkage device respectively disposed in the third lock housing, the third lock housing being latched with the locking device, the lever device being sequentially passed through the third lock housing and the lever device, and one end of the reversing linkage device being connected to the lever device;

[0009] A locking rod seat, comprising a fourth locking housing, a communicating groove, and a locking rod. The communicating groove is located on one side of the fourth locking housing parallel to the plane containing the first and second locking housings. The locking rod is located inside the fourth locking housing. The other end of the reversing linkage device passes through the fourth locking housing and is connected to the locking rod.

[0010] A locking seat is provided adjacent to the locking rod seat, and a locking hole is provided on the side of the locking seat facing the locking rod seat corresponding to the communicating groove.

[0011] As described above, a lever-type push-pull door lock includes a reversing linkage device comprising a rotating rod, a limiting mechanism, a cam, a toggle rod, a square shaft, and a groove. The groove is located on the side of the toggle device near the reversing linkage device. The limiting mechanism is located inside the third lock housing. The rotating rod is rotatably mounted on the limiting mechanism. The cam is located on the side of the rotating rod near the toggle device. The toggle rod is located on the end of the cam facing away from the rotating rod and is engaged in the groove. The square shaft is located on the other end of the rotating rod, and the lock rod has a square hole for the square shaft to be inserted.

[0012] As described above, in a lever-type push-pull door lock, the third lock housing includes a first housing and a second housing disposed opposite to each other. The limiting mechanism includes a clamping seat, a first limiting groove, a second limiting groove, and a convex ring. Each clamping seat, the first limiting groove, the second limiting groove, and the convex ring includes two units. The two first limiting grooves are respectively disposed on one end of the first housing and the second housing. The two clamping seats are respectively disposed opposite to each other on the inner sides of the first housing and the second housing. The two second limiting grooves are respectively disposed one-to-one on opposite sides of the two clamping seats. The two convex rings are disposed along the length direction of the rotating rod. The two ends of one convex ring are respectively engaged in the two first limiting grooves, and the two ends of the other convex ring are respectively engaged in the two second limiting grooves.

[0013] As described above, in a type of push-pull door lock with a locking lever, the lever device includes a first sliding mechanism, a second sliding mechanism, and a lever. The first sliding mechanism is slidably disposed within the first lock housing, and the second sliding mechanism is slidably disposed within the second lock housing. Both ends of the lever are connected to the first sliding mechanism and the second sliding mechanism, respectively. The third lock housing is provided with a sliding groove, and the lever device is provided with a through hole. One end of the lever is connected to the sliding groove and the through hole, respectively.

[0014] As described above, in a type of lever-type push-pull door lock, the first lock housing has an clearance groove on the side facing away from the second lock housing. The first sliding mechanism includes a sliding part and a traction part. The sliding part is slidably disposed inside the first lock housing and is connected to one end of the lever. The traction part is slidably disposed inside the clearance groove and is connected to the sliding part.

[0015] As described above, in a type of lever-type push-pull door lock, the second sliding mechanism includes a sliding block, a protrusion, and a sliding groove. The sliding block is slidably disposed within the second lock housing, the protrusion is disposed on the side of the sliding block facing away from the first lock housing, the sliding groove is disposed on the second lock housing, and the protrusion passes through the sliding groove.

[0016] As described above, in a type of push-pull door lock with a locking rod, the lever device includes a lever, two guide posts and an extension block. The two guide posts are respectively disposed on both ends of the lever, and both ends of each guide post are respectively engaged with the third lock housing. The extension block is disposed on one end of the lever near the reversing linkage device, the groove is disposed on the extension block, and the through hole is disposed on the lever.

[0017] As described above, a type of push-pull door lock with a locking rod is provided with a receiving groove and a locking mechanism inside the locking rod seat. The receiving groove is located below the locking rod, and the two ends of the locking mechanism are respectively connected to the bottom of the receiving groove and the locking rod.

[0018] As described above, a lever-type push-pull door lock includes a locking mechanism comprising an arc-shaped groove, a locking element, a pushing element, and a spring. The arc-shaped groove is provided on the lock lever. The cross-sectional shape of the locking element is teardrop-shaped. One side of the tip of the locking element is connected to the middle of the arc-shaped groove. The pushing element is rotatably engaged with one end of the arc of the locking element. The two ends of the spring abut against the bottom of the receiving groove and the pushing element, respectively.

[0019] Beneficial effects:

[0020] This utility model discloses a lever-type sliding door lock, including a lock base, a transmission base, a lever base, and a locking base. The lock base includes a first lock shell, a second lock shell, a locking device, and a lever device. The transmission base includes a third lock shell, a lever device, and a reversing linkage device. The lever base includes a fourth lock shell, a connecting groove, and a locking rod. The locking base has a lock hole. The lever device drives the lever device within the transmission base to move within the transmission base. The reversing linkage device converts the longitudinal movement of the lever device into axial rotation, causing the locking rod to rotate and engage with the lock hole, thereby locking the sliding door. Furthermore, since the lock hook and locking base rely only on the locking hook portion, the force-bearing area between the lock hook and locking base is small, and the tip is prone to wear or deformation. Compared to the previous design, this design offers advantages over other locks. A locking rod replaces the locking hook. The two sides of the locking rod abut against the inner sides of the lock hole and the fourth lock housing, respectively, increasing the contact area. Even with wear, the locking rod can still be inserted and removed normally from the lock hole, having a relatively small impact on the door's locking function. On the other hand, when installing a push-pull door lock, the smaller size of the locking hook necessitates precise alignment between the hook and the lock hole. However, for the locking rod, it is only necessary to ensure that it can enter the lock hole. This application discloses a locking rod type push-pull door lock with a simple and ingenious transmission structure, further improving the structural stability of the push-pull door lock, making it less prone to damage, and ensuring that normal use is not affected even with a certain degree of wear. This reduces the difficulty of installation or maintenance and the technical requirements for assembly workers. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of the push-pull door lock provided by this utility model;

[0022] Figure 2 Exploded view of the lock base provided by this utility model;

[0023] Figure 3 Exploded view of the transmission seat provided by this utility model;

[0024] Figure 4 Exploded view of the locking rod seat provided by this utility model;

[0025] Reference numerals: 1. Lock seat; 11. First lock housing; 12. Second lock housing; 13. Snap-fit ​​device; 14. Lever device; 15. First sliding mechanism; 151. Sliding part; 152. Traction part; 16. Second sliding mechanism; 161. Sliding block; 162. Protrusion; 163. Sliding groove; 17. Lever; 18. Clearance groove; 2. Transmission seat; 21. Third lock housing; 211. First housing; 212. Second housing; 22. Lever device; 221. Lever; 222. Guide post; 223. Extension block; 23. Reversing coupling 231. Rotating rod; 232. Limiting mechanism; 233. Cam; 234. Actuating rod; 235. Square shaft; 236. Groove; 237. Clamping seat; 238. First limiting groove; 239. Second limiting groove; 230. Protruding ring; 24. Sliding groove; 25. Through hole; 3. Locking rod seat; 31. Fourth lock housing; 32. Connecting groove; 33. Locking rod; 34. Square hole; 35. Locking mechanism; 36. Arc groove; 37. Locking component; 38. Pushing component; 39. Spring; 30. Receiving groove; 4. Locking seat; 41. Lock hole. Detailed Implementation

[0026] This utility model provides a lever-type push-pull door lock. 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.

[0027] 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.

[0028] like Figure 1-4 As shown in the figure, this application provides a lever-type push-pull door lock, including:

[0029] Lock base 1, the lock base 1 includes a first lock shell 11, a second lock shell 12, a locking device 13 and a lever device 14, the first lock shell 11 and the second lock shell 12 are arranged opposite to each other, the locking device 13 is provided on the side of the first lock shell 11 facing the second lock shell 12, and the two ends of the lever device 14 are slidably connected to the first lock shell 11 and the second lock shell 12 respectively;

[0030] The transmission base 2 includes a third lock housing 21, a lever device 22 and a reversing linkage device 23 respectively disposed in the third lock housing 21. The third lock housing 21 is engaged with the locking device 13. The lever device 14 is sequentially passed through the third lock housing 21 and the lever device 22. One end of the reversing linkage device 23 is connected to the lever device 22.

[0031] The locking rod seat 3 includes a fourth locking housing 31, a connecting groove 32, and a locking rod 33. The connecting groove 32 is located on one side of the fourth locking housing 31, parallel to the plane where the first locking housing 11 and the second locking housing 12 are located. The locking rod 33 is located inside the fourth locking housing 31. The other end of the reversing linkage device 23 passes through the fourth locking housing 31 and is connected to the locking rod 33.

[0032] A locking seat 4 is provided adjacent to the locking rod seat 3, and a locking hole 41 is provided on the side of the locking seat 4 facing the locking rod seat 3 corresponding to the communicating groove 32.

[0033] This utility model discloses a lever-type sliding door lock, including a lock base 1, a transmission base 2, a lever base 3, and a locking base 4. The lock base 1 includes a first lock shell 11, a second lock shell 12, a locking device 13, and a lever device 14. The transmission base 2 includes a third lock shell 21, a lever device 22, and a reversing linkage device 23. The lever base 3 includes a fourth lock shell 31, a connecting groove 32, and a locking rod 33. The locking base 4 has a lock hole 41. The lever device 14 drives the lever device 22 within the transmission base 2 to move within the transmission base 2. The reversing linkage device 23 converts the longitudinal movement of the lever device 22 into axial rotation, causing the locking rod 33 to rotate and engage with the lock hole 41, thereby locking the sliding door. Furthermore, because the lock hook and the locking base rely only on the locking hook portion, the force-bearing area between the lock hook and the locking base is small, and the tip is prone to... Wear or deformation, compared to using the locking rod 33 instead of the locking hook, the two sides of the locking rod 33 abut against the inner side of the lock hole 41 and the fourth lock housing 31 respectively, increasing the contact area. Even if the locking rod 33 is worn, it can still be inserted and pulled out of the lock hole 41 normally, with relatively little impact on the locking function of the door. On the other hand, when installing a push-pull door lock, due to the small size of the locking hook, the requirements for the assembly position of the locking hook and the lock hole are high, requiring strict alignment. However, for the locking rod 33, it is only necessary to ensure that the locking rod 33 can enter the lock hole 41. The locking rod type push-pull door lock disclosed in this application has a simple and ingenious transmission structure, which further improves the structural stability of the push-pull door lock, making it less prone to damage. Moreover, even with a certain degree of wear, it does not affect the normal use of the door lock, reducing the difficulty of installation or maintenance of the door lock and the technical requirements for assembly workers.

[0034] The reversing linkage device 23 includes a rotating rod 231, a limiting mechanism 232, a cam 233, a toggle rod 234, a square shaft 235, and a groove 236. The groove 236 is located on the side of the toggle device 22 near the reversing linkage device 23. The limiting mechanism 232 is located inside the third lock housing 21. The rotating rod 231 is rotatably mounted on the limiting mechanism 232. The cam 233 is located on the side of the rotating rod 231 near the toggle device 22. The toggle rod 234 is located on the side of the cam 235 near the toggle device 22. The wheel 233 is located on one end facing away from the rotating rod 231. The actuating rod 234 is engaged in the groove 236. The square shaft 235 is located on the other end of the rotating rod 231. The locking rod 33 has a square hole 34 for the square shaft 235 to be inserted. The third lock housing 21 includes a first housing 211 and a second housing 212 disposed opposite to each other. The limiting mechanism 232 includes a clamping seat 237, a first limiting groove 238, a second limiting groove 239, and a convex ring 230. The clamping seat 237, the first limiting groove 238, the second limiting groove 239, and the convex ring 230 are all located on the other end of the rotating rod 231. The first limiting groove 238, the second limiting groove 239, and the convex ring 230 are each included in twos. The two first limiting grooves 238 are respectively disposed on one end of the first housing 211 and the second housing 212. The two clamping seats 237 are respectively disposed opposite each other on the inner sides of the first housing 211 and the second housing 212. The two second limiting grooves 239 are respectively disposed one-to-one on opposite sides of the two clamping seats 237. The two convex rings 230 are arranged along the length direction of the rotating rod 231. Any one of the... The two ends of the convex ring 230 are respectively engaged in the two first limiting grooves 238, and the two ends of the other convex ring 230 are respectively engaged in the two second limiting grooves 239. The limiting mechanism 232 restricts the rotation of the rotating rod 231 along its axial direction. The toggle device 22 drives the toggle rod 234 to move. The toggle rod 234 swings in an arc within the groove 236. The cam 233 drives the rotating rod 231 to rotate, thereby driving the locking rod 33 to rotate into or out of the lock hole 41.

[0035] The lever device 14 includes a first sliding mechanism 15, a second sliding mechanism 16, and a lever 17. The first sliding mechanism 15 is slidably disposed within the first lock housing 11, and the second sliding mechanism 16 is slidably disposed within the second lock housing 12. Both ends of the lever 17 are connected to the first sliding mechanism 15 and the second sliding mechanism 16, respectively. The third lock housing 21 has a sliding groove 24, and the lever device 22 has a through hole 25. One end of the lever 17 is connected to both the sliding groove 24 and the through hole 25. The first lock housing 11 has a clearance groove 18 on the side facing away from the second lock housing 12. The first sliding mechanism 15 includes a sliding part 151 and a traction part 152. The sliding part 151 is slidably disposed within the first lock housing 11. The lever 17 is connected to one end of the lever 17. The traction part 152 is slidably disposed in the clearance groove 18. The traction part 152 is connected to the sliding part 151. The second sliding mechanism 16 includes a sliding block 161, a protrusion 162 and a sliding groove 163. The sliding block 161 is slidably disposed in the second lock housing 12. The protrusion 162 is disposed on the side of the sliding block 161 facing away from the first lock housing 11. The sliding groove 163 is disposed on the second lock housing 12. The protrusion 162 passes through the sliding groove 163. The lever 17 is moved by connecting the first sliding mechanism 15 and the second sliding mechanism 16. The user can push and pull the sliding part 148 through the traction part 152 to lock or unlock the push-pull door lock.

[0036] The lever device 22 includes a lever 221, two guide posts 222, and an extension block 223. The two guide posts 222 are respectively inserted through both ends of the lever 221, and both ends of each guide post 222 are engaged with the third lock housing 21. The extension block 223 is provided on one end of the lever 221 near the reversing linkage device 23. The groove 236 is provided on the extension block 223, and the through hole 25 is provided on the lever 221. The two guide posts 222 restrict the movement direction of the lever 221, ensuring that the lever 221 moves smoothly, so that the operation of the push-pull door lock is smoother.

[0037] The locking rod seat 3 is further provided with a receiving groove 30 and a locking mechanism 35. The receiving groove 30 is located below the locking rod 33. The two ends of the locking mechanism 35 are respectively connected to the bottom of the receiving groove 30 and the locking rod 33. The locking mechanism 35 includes an arc-shaped groove 36, a locking member 37, a pushing member 38, and a spring 39. The arc-shaped groove 36 is located on the locking rod 33. The cross-sectional shape of the locking member 37 is teardrop-shaped. One side of the tip of the locking member 37 is connected to the middle of the arc-shaped groove 36. The pushing member 38 is rotatably engaged with one end of the arc of the locking member 37. The two ends of the spring 39 abut against the bottom of the receiving groove 30 and the pushing member 38, respectively. In the locked or unlocked state of the push-pull door lock, the locking mechanism 35 maintains the locking rod 33 to prevent the locking rod 33 from loosening and falling in the unlocked state, causing accidental locking, or loosening in the locked state, causing unlocking.

[0038] 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 lever-type push-pull door lock, characterized in that, include: Lock base (1), the lock base (1) includes a first lock shell (11), a second lock shell (12), a locking device (13) and a lever device (14), the first lock shell (11) and the second lock shell (12) are arranged opposite to each other, the locking device (13) is provided on the side of the first lock shell (11) facing the second lock shell (12), and the two ends of the lever device (14) are slidably connected to the first lock shell (11) and the second lock shell (12) respectively; The transmission base (2) includes a third lock housing (21), a lever device (22) and a reversing linkage device (23) respectively disposed in the third lock housing (21). The third lock housing (21) is engaged with the locking device (13). The lever device (14) is sequentially disposed on the third lock housing (21) and the lever device (22). One end of the reversing linkage device (23) is connected to the lever device (22). Locking rod seat (3), the locking rod seat (3) includes a fourth lock housing (31), a connecting groove (32) and a locking rod (33). The connecting groove (32) is located on one side of the fourth lock housing (31) parallel to the plane where the first lock housing (11) and the second lock housing (12) are located. The locking rod (33) is located inside the fourth lock housing (31). The other end of the reversing linkage device (23) passes through the fourth lock housing (31) and is connected to the locking rod (33). A locking seat (4) is provided adjacent to the locking rod seat (3), and a locking hole (41) is provided on the side of the locking seat (4) facing the locking rod seat (3) corresponding to the communicating groove (32).

2. A lever-type push-pull door lock according to claim 1, characterized in that, The reversing linkage device (23) includes a rotating rod (231), a limiting mechanism (232), a cam (233), a toggle rod (234), a square shaft (235), and a groove (236). The groove (236) is located on the side of the toggle device (22) near the reversing linkage device (23). The limiting mechanism (232) is located inside the third lock housing (21). The rotating rod (231) is rotatably mounted on the limiting mechanism (232). The cam (233) is located on the side of the rotating rod (231) near the toggle device (22), the toggle rod (234) is located on the end of the cam (233) facing away from the rotating rod (231), the toggle rod (234) is engaged in the groove (236), the square shaft (235) is located on the other end of the rotating rod (231), and the locking rod (33) is provided with a square hole (34) for the square shaft (235) to be inserted.

3. A lever-type push-pull door lock according to claim 2, characterized in that, The third lock housing (21) includes a first housing (211) and a second housing (212) disposed opposite to each other. The limiting mechanism (232) includes a clamping seat (237), a first limiting groove (238), a second limiting groove (239), and a convex ring (230). The clamping seat (237), the first limiting groove (238), the second limiting groove (239), and the convex ring (230) each include two. The two first limiting grooves (238) are respectively provided on one end of the first housing (211) and the second housing (212). Two clamping seats (237) are respectively disposed opposite to each other on the inner sides of the first housing (211) and the second housing (212). Two second limiting grooves (239) are respectively disposed on opposite sides of the two clamping seats (237). Two protruding rings (230) are arranged along the length direction of the rotating rod (231). The two ends of one of the protruding rings (230) are respectively engaged in the two first limiting grooves (238), and the two ends of the other protruding ring (230) are respectively engaged in the two second limiting grooves (239).

4. A lever-type push-pull door lock according to claim 2, characterized in that, The lever device (14) includes a first sliding mechanism (15), a second sliding mechanism (16), and a lever (17). The first sliding mechanism (15) is slidably disposed in the first lock housing (11), and the second sliding mechanism (16) is slidably disposed in the second lock housing (12). The two ends of the lever (17) are respectively connected to the first sliding mechanism (15) and the second sliding mechanism (16). The third lock housing (21) is provided with a sliding groove (24), and the lever device (22) is provided with a through hole (25). One end of the lever (17) is respectively connected to the sliding groove (24) and the through hole (25).

5. A lever-type push-pull door lock according to claim 4, characterized in that, The first lock housing (11) has a clearance groove (18) on the side facing away from the second lock housing (12). The first sliding mechanism (15) includes a sliding part (151) and a traction part (152). The sliding part (151) is slidably disposed in the first lock housing (11) and is connected to one end of the lever (17). The traction part (152) is slidably disposed in the clearance groove (18) and is connected to the sliding part (151).

6. A lever-type push-pull door lock according to claim 4, characterized in that, The second sliding mechanism (16) includes a sliding block (161), a protrusion (162), and a sliding groove (163). The sliding block (161) is slidably disposed in the second lock housing (12). The protrusion (162) is disposed on the side of the sliding block (161) facing away from the first lock housing (11). The sliding groove (163) is disposed on the second lock housing (12), and the protrusion (162) passes through the sliding groove (163).

7. A lever-type push-pull door lock according to claim 4, characterized in that, The toggle device (22) includes a toggle block (221), two guide posts (222) and an extension block (223). The two guide posts (222) are respectively installed on both ends of the toggle block (221). The two ends of each guide post (222) are respectively engaged with the third lock housing (21). The extension block (223) is located on one end of the toggle block (221) near the reversing linkage device (23). The groove (236) is located on the extension block (223). The through hole (25) is located on the toggle block (221).

8. A lever-type push-pull door lock according to claim 1, characterized in that, The locking rod seat (3) is also provided with a receiving groove (30) and a locking mechanism (35). The receiving groove (30) is located below the locking rod (33), and the two ends of the locking mechanism (35) are respectively connected to the bottom of the receiving groove (30) and the locking rod (33).

9. A lever-type push-pull door lock according to claim 8, characterized in that, The locking mechanism (35) includes an arc groove (36), a locking member (37), a pushing member (38), and a spring (39). The arc groove (36) is provided on the locking rod (33). The cross-sectional shape of the locking member (37) is teardrop-shaped. One side of the tip of the locking member (37) is connected to the middle of the arc groove (36). The pushing member (38) is rotatably engaged with one end of the arc of the locking member (37). The two ends of the spring (39) abut against the bottom of the receiving groove (30) and the pushing member (38), respectively.

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