Connecting structure for upper lock body and handle of door lock

Abstract

The utility model relates to a connecting structure of a lock body and a handle on a door lock, and relates to the technical field of lock body and handle connection, the connecting structure comprises a main lock body, a spring bolt and a handle, the main lock body is provided with a lock groove, the spring bolt is rotatably arranged in the lock groove and can extend out of the lock groove, the spring bolt is provided with a reset piece, and the reset piece is used for resetting the spring bolt. A transmission assembly is arranged between the handle and the spring bolt, the transmission assembly drives the spring bolt to rotate according to rotation of the handle, the handle is rotationally provided with an installation block, the installation block is provided with a connecting rod, and the connecting rod is connected with the main lock body. The door lock has the effect of improving the durability of the door lock.

Description

Technical Field

[0001] This utility model relates to the field of lock body and handle connection technology, and in particular to a connection structure between the lock body and handle of a door lock. Background Technology

[0002] Door locks are a common locking structure on doors. Handles are components used to rotate the lock cylinder of the door lock, thereby unlocking and locking. They are ubiquitous in daily life. The overall structure of the door lock is often set inside the door body, while the handle is usually rotated and set on the door body.

[0003] In most common door locks, the handle is connected to the lock body and cylinder via a transmission component such as a shaft. When the handle is turned, it drives the lock cylinder to turn, which in turn drives the lock body and bolt to turn for locking and unlocking. However, in actual use, the handle is exposed outside the door, and some door lock internal components are also exposed. Exposed handles and locks are easily impacted. When the handle or lock body is impacted, the transmission structure such as the shaft connecting the handle and lock body will bear part of the impact force, which can easily cause the shaft to bend or be damaged. As a result, the durability of the transmission structure connecting the handle and lock body is generally poor and needs to be improved. Utility Model Content

[0004] To improve the durability of door locks, this application provides a connection structure between the lock body and the handle of a door lock.

[0005] The technical solution for the connection structure between the lock body and the handle of a door lock provided in this application is as follows:

[0006] A connection structure between a door lock body and a handle includes a main lock body, a bolt, and a handle. The main lock body has a lock groove, the bolt is rotatably disposed in the lock groove and can extend out of the lock groove, the bolt has a reset member for resetting the bolt, a transmission assembly is disposed between the handle and the bolt, the transmission assembly drives the bolt to rotate according to the rotation of the handle, the handle has a mounting block, the mounting block has a connecting rod, and the connecting rod is connected to the main lock body.

[0007] By adopting the above technical solution, the connecting rod is connected to the main lock body, and multiple connecting rods connect the main lock body and the handle mounting block. When the handle is impacted, the connecting rods share the impact force borne by the transmission components, thereby reducing the possibility of damage to the transmission structure and improving the durability of the door lock.

[0008] Preferably, the main lock body is provided with an assembly hole, the main lock body is provided with a connecting bolt, the connecting rod is provided with a connecting hole, the connecting bolt passes through the assembly hole and is inserted into the connecting hole, and the connecting bolt is threadedly connected to the connecting hole.

[0009] By adopting the above technical solution, the connecting bolt is inserted into the connecting hole of the connecting rod, thereby locking the connecting rod and the main lock body, further improving the stability of the connection between the handle and the main lock body, reducing the possibility of damage to the connection between the handle and the main lock body due to impact, and further improving the durability of the door lock.

[0010] Preferably, the main lock body is provided with a relief groove that communicates with the assembly hole, and the connecting bolt can pass through the relief groove.

[0011] By adopting the above technical solution, the groove facilitates the installation, tightening and loosening of connecting bolts, thus improving the convenience of assembly.

[0012] Preferably, the transmission assembly includes a transmission pry bar, a transmission shaft, a first transmission block, and a second transmission block. The transmission shaft is mounted on the handle. The first transmission block is rotatably mounted on the main lock body and connected to the transmission shaft. The transmission pry bar is rotatably mounted in the lock groove. The second transmission block is mounted on the lock tongue. One end of the transmission pry bar abuts against the second transmission block, and the other end of the transmission pry bar abuts against the first transmission block.

[0013] By adopting the above technical solution, turning the handle drives the transmission shaft to rotate, which in turn drives the first transmission block to rotate and pushes the transmission pry bar to rotate in the assembly slot. The rotation of the transmission pry bar drives the second transmission block, which in turn drives the lock tongue to rotate, realizing the unlocking or locking transmission. The operation is simple and convenient, improving the ease of use.

[0014] Preferably, the drive shaft is provided with a first assembly block, the first drive block is provided with a second assembly block, the second assembly block is provided outside the lock groove, the second assembly block is provided with an assembly groove, and the first assembly block is inserted into the assembly groove.

[0015] By adopting the above technical solution, the first assembly block is inserted into the assembly slot of the second assembly block, thereby connecting the drive shaft and the first drive block. When the drive shaft rotates, it drives the first drive block to rotate, which facilitates assembly and disassembly and improves the convenience of use.

[0016] Preferably, the second assembly block is provided with a retaining spring, which abuts against the main lock body.

[0017] By adopting the above technical solution, the snap ring improves the stability of the installation between the first transmission block, the second assembly block and the main lock body, thereby improving the stability of the transmission, reducing the possibility of displacement and damage to the first transmission block and the second assembly block, and improving the overall durability of the door lock.

[0018] Preferably, the first transmission block is provided with an abutment block that abuts against the transmission pry bar.

[0019] By adopting the above technical solution, the abutment block improves the stability of the abutment transmission between the first transmission block and the transmission pry bar, thereby improving the stability of the transmission between the handle and the locking tongue.

[0020] Preferably, a rotating shaft is provided in the lock groove, the lock tongue is rotatably mounted on the rotating shaft, and the reset member is a rotating torsion spring sleeved on the rotating shaft, with one end of the rotating torsion spring abutting against the inner wall of the lock groove and the other end of the rotating torsion spring abutting against the lock tongue.

[0021] By adopting the above technical solution, the rotating torsion spring is compressed when the lock tongue rotates. When the handle is released, the rotating torsion spring drives the lock tongue to rotate and reset, making the operation simple and convenient and improving the ease of use.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. By setting up a main lock body, a handle, and a connecting rod, with the connecting rod connected to the main lock body, the main lock body and the handle are connected. This improves the stability of the connection between the main lock body and the handle, reduces the possibility of damage to the door lock transmission structure when the handle is impacted, and improves the durability of the door lock.

[0024] 2. By setting connecting bolts, assembly holes and connection holes, the connecting bolts pass through the assembly holes and are inserted into the connection holes of the connecting rod and tightened, thereby fixing the connection between the main lock body and the handle, further improving the stability of the connection between the main lock body and the handle, reducing the possibility of damage to the door lock transmission structure when the handle is impacted, and improving the durability of the door lock;

[0025] 3. By setting up a transmission pry bar, a transmission shaft, a first transmission block, and a second transmission block, when the handle is turned, the transmission shaft is driven to rotate. The rotation of the transmission shaft drives the first transmission block to rotate, thereby pushing the transmission pry bar to rotate, which in turn pushes the second transmission block to move and drive the lock tongue to rotate, thus realizing the transmission unlocking or locking. The operation is simple and convenient, improving the ease of use. Attached Figure Description

[0026] Figure 1 This is an overall schematic diagram of the connection structure between the locking body and the handle of a door lock provided in an embodiment of this application.

[0027] Figure 2 This is a cross-sectional view of the connection structure between the lock body and the handle of a door lock provided in an embodiment of this application.

[0028] Explanation of reference numerals in the attached drawings: 1. Main lock body; 11. Assembly hole; 12. Clearance groove; 13. Lock groove; 131. Lock tongue; 14. Rotating shaft; 141. Rotating torsion spring; 15. Connecting bolt; 2. Handle; 21. Mounting block; 22. Connecting rod; 221. Connecting hole; 3. Transmission assembly; 31. Transmission shaft; 311. First assembly block; 312. Abutment block; 32. First transmission block; 321. Second assembly block; 322. Snap ring; 323. Assembly groove; 33. Transmission pry bar; 34. Second transmission block; 4. Auxiliary plate; 41. Auxiliary block; 42. Auxiliary spring. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0030] This application discloses a connection structure between the lock body and the handle of a door lock. (Refer to...) Figure 1 and Figure 2 The lock includes a main lock body 1, a bolt 131, and a handle 2. The main lock body 1 has a lock groove 13 communicating with one side wall. A rotating shaft 14 is fixedly installed within the lock groove 13. The bolt 131 is rotatably sleeved on the rotating shaft 14 and can extend out to lock. A rotating torsion spring 141 is wound around the rotating shaft 14 as a reset element, with its two ends abutting against the bolt 131 and the inner wall of the lock groove 13, respectively. A transmission assembly 3 for transmission is provided between the handle 2 and the bolt 131. A circular mounting block 21 is rotatably mounted on the handle 2. The mounting block 21 can be fixed to the door panel by welding or other methods. Two connecting rods 22 are fixedly mounted on the side of the mounting block 2 away from the handle 2, and a connecting hole 221 is provided at the end of the connecting rod 22 away from the handle 2. The main lock body 1 has a through-hole 11 in its base plate, a clearance groove 12, and a connecting bolt 15 passing through the clearance groove 12 and the assembly hole 11. The connecting bolt 15 is inserted into the connecting hole 221 and threadedly connected to the connecting rod 22. In another embodiment, the connecting rod 22 can be partially inserted into the assembly hole 11 to improve the stability of the connection. By connecting the main lock body 1 and the handle 2 with the connecting bolt 15 and the connecting rod 22, the impact force borne by the transmission component 3 structure when the handle 2 or the lock body is impacted is shared, thereby reducing the possibility of damage to the transmission structure and improving the durability of the door lock.

[0031] For ease of use, please refer to Figure 1 and Figure 2The transmission assembly 3 includes a transmission pry bar 33, a transmission shaft 31, a first transmission block 32, and a second transmission block 34. The transmission shaft 31 is fixedly mounted at the connection between the handle 2 and the mounting block 21 and passes through the mounting block 21. The first transmission block 32 is rotatably mounted in the lock groove 13 via a rotating shaft, and the transmission pry bar 33 is rotatably mounted in the lock groove 13 via a rotating shaft. The second transmission block 34 is fixedly mounted on the side of the lock tongue 131 near the transmission pry bar 33. The first transmission block 32 is integrally provided with an abutment block 312, and the two ends of the base plate of the transmission pry bar 33 abut against the abutment block 312 and the second transmission block 34, respectively. The rotating shaft of the first transmission block 32 passes through the base plate of the main lock body 1. The end of the rotating shaft of the first transmission block 32 away from the main lock body 1 is integrally provided with a circular second assembly block 321. The radius of the second assembly block 321 is larger than that of the rotating shaft of the first transmission block 32. The second assembly block 321 is provided with a retaining spring 322, and the two sides of the retaining spring 322 abut against the main lock body 1 and the second assembly block 321, respectively. The second assembly block 321 has a cross-shaped assembly groove 323 on its surface away from the main lock body 1. The assembly groove 323 passes through the rotating shaft of the first transmission block 32. The transmission shaft 31 is fixedly fitted with the first assembly block 311, which is adapted to be inserted into the assembly groove 323. An auxiliary plate 4 is rotatably sleeved on the rotating shaft of the transmission pry bar 33. An auxiliary block 41 that can abut against the surface of the transmission pry bar 33 is integrally provided on the side wall of the auxiliary plate 4. An auxiliary spring 42 that is fixedly connected to the bottom wall of the auxiliary plate 4 is fixedly provided on the side wall of the lock groove 13. When the handle 2 is turned, the transmission shaft 31 is driven to rotate, which in turn drives the first transmission block 32 to rotate through the first assembly block 311 and the second assembly block 321, thereby driving the transmission pry bar 33 to rotate. The second transmission block 34 then pushes the lock tongue 131 to rotate, thereby locking or unlocking. The operation is simple and convenient, improving the ease of use.

[0032] The implementation principle of the connection structure between the lock body and the handle of a door lock according to an embodiment of this application is as follows: the connecting rod 22 on the connecting block 21 of the handle 2 and the connecting bolt 15 of the connecting rod 22 connection hole 221 provided on the main lock body 1 are used to improve the stability of the connection between the main lock body 1 and the handle 2, so as to share the impact force borne by the transmission components 3 such as the transmission shaft 31 when the handle 2 or the main lock body 1 is impacted, thereby reducing the possibility of the transmission components 3 such as the transmission shaft 31 being misaligned and damaged, and improving the durability of the door lock.

[0033] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A connection structure between the lock body and the handle of a door lock, characterized in that: The lock includes a main lock body (1), a bolt (131), and a handle (2). The main lock body (1) is provided with a lock groove (13). The bolt (131) is rotatably disposed in the lock groove (13) and can extend out of the lock groove (13). The bolt (131) is provided with a reset member for resetting the bolt (131). A transmission assembly (3) is provided between the handle (2) and the bolt (131). The transmission assembly (3) drives the bolt (131) to rotate according to the rotation of the handle (2). The handle (2) is rotatably provided with a mounting block (21). The mounting block (21) is provided with a connecting rod (22). The connecting rod (22) is connected to the main lock body (1).

2. The connection structure between the lock body and the handle of a door lock according to claim 1, characterized in that: The main lock body (1) is provided with an assembly hole (11), the main lock body (1) is provided with a connecting bolt (15), the connecting rod (22) is provided with a connecting hole (221), the connecting bolt (15) passes through the assembly hole (11) and is inserted into the connecting hole (221), and the connecting bolt (15) is threadedly connected to the connecting hole (221).

3. The connection structure between the lock body and the handle of a door lock according to claim 2, characterized in that: The main lock body (1) is provided with a relief groove (12) that communicates with the assembly hole (11), and the connecting bolt (15) can pass through the relief groove (12).

4. The connection structure between the lock body and the handle of a door lock according to claim 1, characterized in that: The transmission assembly (3) includes a transmission pry bar (33), a transmission shaft (31), a first transmission block (32), and a second transmission block (34). The transmission shaft (31) is mounted on the handle (2). The first transmission block (32) is rotatably mounted on the main lock body (1) and connected to the transmission shaft (31). The transmission pry bar (33) is rotatably mounted in the lock groove (13). The second transmission block (34) is mounted on the lock tongue (131). One end of the transmission pry bar (33) abuts against the second transmission block (34), and the other end of the transmission pry bar (33) abuts against the first transmission block (32).

5. The connection structure between the lock body and the handle of a door lock according to claim 4, characterized in that: The drive shaft (31) is provided with a first assembly block (311), the first drive block (32) is provided with a second assembly block (321), the second assembly block (321) is provided outside the lock groove (13), the second assembly block (321) is provided with an assembly groove (323), and the first assembly block (311) is inserted into the assembly groove (323).

6. The connection structure between the lock body and the handle of a door lock according to claim 5, characterized in that: The second assembly block (321) is provided with a retaining ring (322), which abuts against the main lock body (1).

7. The connection structure between the lock body and the handle of a door lock according to claim 4, characterized in that: The first transmission block (32) is provided with an abutment block (312) that abuts against the transmission pry bar (33).

8. The connection structure between the lock body and the handle of a door lock according to claim 1, characterized in that: A rotating shaft (14) is provided in the lock groove (13), and the lock tongue (131) is rotatably mounted on the rotating shaft (14). The reset member is a rotating torsion spring (141) sleeved on the rotating shaft (14). One end of the rotating torsion spring (141) abuts against the inner wall of the lock groove (13), and the other end of the rotating torsion spring (141) abuts against the lock tongue (131).

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