A lockable door

Abstract

The application relates to a replaceable lock core door lock and relates to the technical field of door locks; the replaceable lock core door lock comprises a mounting frame, a transmission mechanism, a handle and a lock core, the mounting frame is used for being mounted on a door body, the lock core is mounted in the handle, the transmission mechanism comprises a rotating frame, a transmission assembly and a transmission frame, the rotating frame is rotationally connected with the mounting frame and drives a lock body such as a lock tongue to displace through the transmission assembly, the transmission frame is arranged on the handle and is inserted into the rotating frame at one end, the lock core drives the rotating frame to rotate through the transmission frame, a fixing frame is further arranged on the mounting frame, the fixing frame is slidably connected with the mounting frame and is inserted into the handle at one end, an abutting groove is further arranged on the fixing frame, the transmission frame is abutted against the inner wall of the abutting groove to limit the sliding of the fixing frame. The application has the effect of conveniently replacing the lock core on the door lock.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of door locks, in particular to a door lock with replaceable lock cylinder. BACKGROUND

[0002] With the continuous development of social economy and the increasing improvement of scientific and technological level, people's safety awareness is also improving. As a device installed on the door and used to lock the door and the door frame, the door lock has the effect of preventing unscrupulous people from entering the door and plays an important role.

[0003] For the related technology in the above, since the lock cylinder of the existing door lock is generally fixedly installed in the door lock, when the key on the door lock is stolen by unscrupulous people, in order to reduce the probability that the unscrupulous people open the door lock by the original key, the user needs to disassemble the door lock as a whole to realize the replacement of the internal lock cylinder, which greatly increases the difficulty of replacing the lock cylinder, and thus needs to be improved. SUMMARY

[0004] In order to facilitate the replacement of the lock cylinder on the door lock, the present application provides a door lock with replaceable lock cylinder.

[0005] The door lock with replaceable lock cylinder provided by the present application adopts the following technical scheme:

[0006] A door lock with replaceable lock cylinder, mounting bracket, transmission mechanism, handle and lock cylinder, the mounting bracket is used to be installed on the door body, the lock cylinder is installed in the handle, characterized in that: the transmission mechanism comprises a rotating bracket, a transmission assembly and a transmission bracket, the rotating bracket is rotatably connected with the mounting bracket and drives the displacement of the lock body such as the lock tongue through the transmission assembly, the transmission bracket is arranged on the handle and is inserted into the rotating bracket at one end, the lock cylinder drives the rotating bracket to rotate through the transmission bracket;

[0007] The mounting bracket is also provided with a fixing bracket, the fixing bracket is slidably connected with the mounting bracket and is inserted into the handle at one end, the fixing bracket is also provided with an abutting groove, the transmission bracket is limited to slide by abutting against the inner wall of the abutting groove.

[0008] Compared with the prior art, the lock cylinder is fixedly installed in the interior of the door lock, so that when the lock cylinder needs to be replaced, the door lock needs to be disassembled as a whole, and then the lock cylinder can be replaced, which greatly increases the difficulty of replacing the lock cylinder. According to the door lock, when the door lock is installed, the handle sleeve is arranged on the rotating frame, the transmission frame is inserted into the rotating frame, the transmission between the lock cylinder and the rotating frame can be realized through the transmission frame, the handle and the rotating frame can be fixed through the fixing frame, and when the lock cylinder needs to be replaced, the key is only needed to be inserted into the lock cylinder and the lock cylinder is driven to rotate, so that the lock cylinder drives the transmission frame to rotate, one side of the transmission frame abutting against the inner wall of the abutting groove is changed, the user can press the fixing frame to drive the fixing frame to slide, the fixing frame is released from the state of being inserted into the handle, and then the user can pull out the handle, the lock cylinder and the transmission frame from the mounting frame together, the handle, the lock cylinder and the transmission frame are disassembled, and then the whole door lock does not need to be disassembled, the disassembly and replacement of the user are effectively facilitated, and the difficulty of the user in disassembling and replacing the lock cylinder is reduced.

[0009] Preferably, the handle is further provided with a driving assembly, the driving assembly comprises a sliding frame, a driving member and a driving frame, the sliding frame is slidably connected with the handle and has the same sliding direction as the fixing frame, the fixing frame is located on the sliding path of the sliding frame, and the driving frame is slidably connected with the handle and located at the end of the handle away from the mounting frame. The driving frame drives the sliding frame to slide through the driving member.

[0010] According to the above technical scheme, when the handle and the lock cylinder need to be disassembled, the user can drive the driving frame to slide, the driving frame drives the sliding frame to slide through the driving member, the sliding frame abuts against the fixing frame, the fixing frame is driven to slide, and the fixing frame gradually separates from the interior of the handle, so that the driving of the fixing frame is realized, the driving of the fixing frame by the user is facilitated, and the disassembly of the handle and the lock cylinder is facilitated.

[0011] Preferably, the driving member comprises a driving frame, one end of the driving frame is rotationally connected with the driving frame, and the other end of the driving frame is rotationally connected with the sliding frame.

[0012] According to the above technical scheme, the driving frame is provided, so that when the user drives the driving frame to slide, the driving frame can drive the driving frame to displace, and then the driving frame drives the sliding frame to slide, the transmission between the driving frame and the sliding frame is realized, and the transmission efficiency between the driving frame and the sliding frame is effectively ensured.

[0013] Preferably, the handle is further provided with a pushing frame and a linkage, the pushing frame is in sliding connection with the handle, the sliding direction of the pushing frame is the same as the rotation axis direction of the handle, the mounting frame is located on the sliding path of the pushing frame, and the driving frame drives the pushing frame to slide through the linkage.

[0014] By adopting the above technical scheme, the driving frame can drive the pushing frame to slide through the linkage, so that the sliding frame gradually approaches the side wall of the mounting frame, and after abutting against the mounting frame, the mounting frame is continuously pushed, thereby making the handle away from the mounting frame, reducing the probability that the mounting frame is inserted into the handle again under the action of the elastic member, and realizing the linkage between the driving frame and the pushing frame.

[0015] Preferably, the linkage comprises a linkage frame, one end of the linkage frame is in rotation connection with the pushing frame, and the other end is in rotation connection with the driving frame.

[0016] By adopting the above technical scheme, when the driving frame slides to drive the driving frame to displace, the driving frame can drive the linkage frame to displace, so that the linkage frame drives the pushing frame to slide, thereby driving the pushing frame, effectively realizing the linkage between the driving frame and the pushing frame, and facilitating the operation of relevant personnel.

[0017] Preferably, the driving assembly further comprises a reset member, the reset member is used to return the sliding frame to the initial position through the elasticity of the reset member.

[0018] By adopting the above technical scheme, the reset member can drive the sliding frame to return to the initial position through the elasticity of the reset member, thereby facilitating the reset of the sliding frame and the driving frame by relevant personnel, and reducing the probability that the sliding frame interferes with the rotating frame during the installation of the handle.

[0019] Preferably, the transmission assembly comprises a connecting frame and a square rod, the connecting frame is located on the side of the mounting frame away from the handle and is connected with the mounting frame, one end of the square rod is located in the connecting frame and is in sliding connection with the connecting frame, and the sliding direction is the rotation axis direction of the rotating frame, and the connecting frame is further provided with a locking member, the locking member is used to lock the connecting frame and the square rod.

[0020] By adopting the above technical scheme, the thickness of the door body on which the door lock of the application is installed can be adjusted by relevant personnel according to the need, the length of the square rod extending out of the connecting frame is adjusted by sliding the square rod, thereby adapting to the thickness of the door body, effectively improving the application range and practicality of the application, and facilitating the installation of the door lock of the application by relevant personnel.

[0021] Preferably, the square rod is further provided with a locking groove extending along the sliding direction of the square rod, and the locking member comprises a locking bolt threadedly connected with the connecting frame and extending into the connecting frame and abutting against the inner bottom wall of the locking groove.

[0022] By adopting the above technical scheme, the locking bolt is arranged, so that after the length of the square rod extending out of the connecting frame is adjusted, the locking bolt can abut against the inner bottom wall of the locking groove by being screwed, thereby fixing the square rod, effectively facilitating the operation of the relevant personnel, and the adjustment range of the exposed length of the square rod is increased.

[0023] Preferably, the transmission frame passes through the abutting groove at one end along the length direction of the transmission frame, and the height value of the transmission frame is not equal to the width value of the transmission frame, and when the side wall of the transmission frame along the height direction abuts against the inner wall of the abutting groove, the fixing frame is still inserted into the handle.

[0024] By adopting the above technical scheme, the transmission frame can pass through the abutting groove, and after the lock cylinder is rotated, the side wall corresponding to the inner wall of the abutting groove is adjusted, so that the transmission frame can safely move out of the inner wall of the handle after moving downward, thereby unlocking the handle, effectively facilitating the operation of the relevant personnel.

[0025] Preferably, the fixing frame is further provided with an elastic member, which is used to drive the fixing frame to slide by the elastic force of the elastic member, so that the fixing frame returns to the state of being inserted into the handle.

[0026] By adopting the above technical scheme, the elastic member can drive the fixing frame to return to the initial position by the elastic force of the elastic member, so that the fixing frame is re-inserted into the inner wall of the handle, thereby automatically locking the handle, effectively facilitating the operation of the relevant personnel.

[0027] In summary, the present application has at least one of the following beneficial technical effects:

[0028] 1. The transmission mechanism and the fixing frame are arranged, so that when the lock cylinder needs to be replaced, the key is only needed to be inserted into the lock cylinder and the lock cylinder is rotated to drive the transmission frame to rotate, thereby changing the side of the transmission frame abutting against the inner wall of the abutting groove, so that the user can press the fixing frame to drive the fixing frame to slide, thereby releasing the state of the fixing frame being inserted into the handle, so that the user can pull out the handle, the lock cylinder and the transmission frame from the mounting frame together, thereby achieving the disassembly of the handle, the lock cylinder and the transmission frame, and further without the need to disassemble the entire door lock, effectively facilitating the disassembly and replacement of the user, and reducing the difficulty of the user in disassembling and replacing the lock cylinder.

[0029] 2. The driving assembly is arranged so that when the handle and lock cylinder need to be disassembled, and by the key and lock cylinder, the driving frame is rotated, the user can drive the driving frame to slide, so that the driving frame drives the sliding frame to slide, so that the sliding frame and the fixed frame are in contact, thereby pushing the fixed frame to slide, so that the fixed frame gradually separates from the inside of the handle, realizing the driving of the fixed frame, effectively facilitating the user to drive the fixed frame, and facilitating the disassembly of the handle and lock cylinder;

[0030] 3. The square rod and the locking member are arranged so that relevant personnel can install the door body of the door lock according to the thickness of the door body, and the length of the square rod extending out of the connecting frame is adjusted by sliding the square rod, so as to adapt to the thickness of the door body, effectively improving the application range and practicality of the application, and facilitating the installation of the door lock. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a schematic view of the door lock as a whole for embodying the replaceable lock cylinder in embodiment 1 of the application.

[0032] Figure 2 is a structural schematic view of the transmission assembly in embodiment 1 of the application.

[0033] Figure 3 is a structural schematic view of the driving frame in embodiment 1 of the application.

[0034] Figure 4 is a structural schematic view of the square rod in embodiment 1 of the application.

[0035] Figure 5 is a structural schematic view of the rotating frame in embodiment 1 of the application.

[0036] Figure 6 is a schematic view of the door lock as a whole for embodying the replaceable lock cylinder in embodiment 2 of the application.

[0037] Figure 7 is a structural schematic view of the driving frame in embodiment 2 of the application.

[0038] Figure 8 is a structural schematic view of the driving frame in embodiment 2 of the application.

[0039] Explanation of reference signs: 1, mounting frame; 2, transmission mechanism; 21, rotating frame; 211, fixed part; 22, transmission assembly; 221, synchronous frame; 222, connecting frame; 223, square rod; 2231, locking groove; 23, transmission frame; 24, intermediate sleeve; 25, locking piece; 251, locking bolt; 26, pressure spring; 3, handle; 31, fixed groove; 4, lock cylinder; 5, fixed frame; 51, abutting groove; 6, elastic piece; 7, protective cover; 8, driving assembly; 81, sliding frame; 82, driving piece; 821, driving frame; 83, driving frame; 84, reset piece; 9, pushing frame; 10, linkage piece; 101, linkage frame. DETAILED DESCRIPTION

[0040] The following will be described in detail below with reference to the accompanying drawings. Figures 1-8 The present application is further described in detail.

[0041] Example 1

[0042] Example 1 of the present application discloses a door lock with replaceable lock cylinder. Referring to Figure 1 , Figure 2 and Figure 3 , the door lock with replaceable lock cylinder comprises a mounting frame 1, a transmission mechanism 2, a handle 3 and a lock cylinder 4, the mounting frame 1 is used for mounting on a door body, and the lock cylinder 4 is mounted in the handle 3. The transmission mechanism 2 comprises a rotating frame 21, a transmission assembly 22 and a transmission frame 23, the rotating frame 21 is rotationally connected with the mounting frame 1, and drives the displacement of a lock body such as a lock bolt through the transmission assembly 22, the transmission frame 23 is arranged on the handle 3, and one end is inserted into the rotating frame 21, and the lock cylinder 4 drives the rotating frame 21 to rotate through the transmission frame 23. The mounting frame 1 is further provided with a fixed frame 5, the fixed frame 5 is slidingly connected with the mounting frame 1, and one end is inserted into the handle 3, and the fixed frame 5 is further provided with an abutting groove 51, and the transmission frame 23 is limited to slide by abutting with the inner wall of the abutting groove 51.

[0043] Referring to Figure 2 and Figure 4 , the rotating frame 21 is in the shape of a circular tube, the middle part of the rotating frame 21 is rotationally connected with the mounting frame 1, and the rotating frame 21 cannot displace along the axis direction after being mounted on the mounting frame 1. The handle 3 is sleeved on one end of the rotating frame 21, and is rotationally connected with the rotating frame 21.

[0044] Referring to Figure 2 and Figure 3 , the lock cylinder 4 is mounted in the handle 3, and is rotationally connected with the handle 3, and when the handle 3 is sleeved on the rotating frame 21, the lock cylinder 4 is located in the hollow position of the rotating frame 21. The outer side wall of the handle 3 is further provided with a fixed groove 31 for inserting the fixed frame 5.

[0045] Referring to Figure 2 and Figure 3The transmission mechanism 2 further comprises an intermediate sleeve 24 located between the transmission frame 23 and the lock cylinder 4. The intermediate sleeve 24 is hollow in the middle and the inner wall thereof is not circular. The intermediate sleeve 24 is sleeved on the transmission frame 23 and the lock cylinder 4, so that the lock cylinder 4 can drive the transmission frame 23 to rotate through the intermediate sleeve 24. The other end of the transmission frame 23 extends away from the intermediate sleeve 24 and is also located in the interior of the rotating frame 21.

[0046] With reference to Figure 2 and Figure 3 In the embodiment, the cross section of the transmission frame 23 is rectangular, and the length of the rectangular cross section is greater than the width, and the difference between the length and the width is greater than the thickness of the outer side wall of the handle 3 (i.e. the depth of the fixed slot 31), so as to ensure the locking and fixing effect of the handle 3 by the fixed frame 5. The abutting groove 51 is formed on the side wall of the fixed frame 5 and is throughly formed, so as to allow the transmission frame 23 to pass through.

[0047] With reference to Figure 2 and Figure 3 The fixed frame 5 is further provided with an elastic member 6. In the embodiment, the elastic member 6 is an arcuate spring, one end of which is inserted into the fixed frame 5 and the other end of which is wound on the rotating frame 21, so as to be fixed with the rotating frame 21, so as to allow the fixed frame 5 to return to the initial state by the elastic force and pass out of the handle 3 through the fixed slot 31.

[0048] With reference to Figure 2 and Figure 3 In the initial state, i.e. when the key is not inserted, the fixed frame 5 passes out of the handle 3 through the fixed slot 31. At this time, one side wall of the transmission frame 23 in the height direction (i.e. the length direction in the cross section) is arranged upward, so that the distance from the inner top wall of the abutting groove 51 to the top end of the transmission frame 23 is less than the distance from the top end of the fixed frame 5 to the bottom end of the fixed slot 31. Thus, when the fixed frame 5 is pressed by a person and the inner top wall of the abutting groove 51 abuts against the top end of the transmission frame 23, the top end of the fixed frame 5 does not completely separate from the fixed slot 31, so that the handle 3 does not separate from the rotating frame 21.

[0049] With reference to Figure 2 and Figure 3 When the key is inserted into the lock cylinder 4 and drives the lock cylinder 4 to rotate, the lock cylinder 4 drives the transmission frame 23 to rotate through the intermediate sleeve 24, so that the side of the transmission frame 23 facing upward changes (i.e. the side in the width direction in the cross section faces upward). At this time, the distance from the inner top wall of the abutting groove 51 to the top end of the transmission frame 23 is greater than or equal to the distance from the top end of the fixed frame 5 to the bottom end of the fixed slot 31. At this time, the fixed frame 5 is pressed, and the top end of the fixed frame 5 can completely separate from the fixed slot 31, so as to release the fixing between the rotating frame 21 and the handle 3.

[0050] With reference to Figure 2 andFigure 4 The transmission assembly 22 comprises a synchronous frame 221, a connecting frame 222 and a square rod 223. The connecting frame 222 is cylindrical, and the diameter of the connecting frame 222 is smaller than the diameter of the rotating frame 21. The connecting frame 222 is located on the side of the mounting frame 1 away from the handle 3. The end of the rotating frame 21 away from the handle 3 extends two fixing portions 211. Each fixing portion 211 is integrally formed with the rotating frame 21.

[0051] With reference to Figure 2 and Figure 4 The synchronous frame 221 is fixedly sleeved on the two fixing portions 211 of the rotating frame 21, so that the rotating frame 21 drives the synchronous frame 221 to rotate through the fixing portions 211. The synchronous frame 221 is also fixedly sleeved on the connecting frame 222, so that the rotating frame 21 can drive the connecting frame 222 to rotate through the synchronous frame 221.

[0052] With reference to Figure 2 and Figure 5 The square rod 223 is arranged at the end of the connecting frame 222 away from the handle 3, and is inserted into the connecting frame 222 and connected with the connecting frame 222 in sliding mode, and the sliding direction is the length direction of the square rod 223. The other end of the square rod 223 extends out of the connecting frame 222 away from the handle 3, so as to be connected with the structure of the driving lock tongue or lock block in the door body.

[0053] With reference to Figure 2 and Figure 5 A locking groove 2231 is arranged on the top end of the square rod 223 and extends along the sliding direction of the square rod 223. The connecting frame 222 is also provided with a locking piece 25. The locking piece 25 comprises a locking bolt 251. The locking bolt 251 is located outside the connecting frame 222, and one end of the locking bolt 251 penetrates through the side wall of the connecting frame 222 and is connected with the connecting frame 222 in threaded mode. The end of the locking bolt 251 penetrating through the connecting frame 222 reaches the inside of the connecting frame 222 and extends into the locking groove 2231 of the square rod 223, and abuts against the inner bottom wall of the locking groove 2231, so as to lock the square rod 223 through friction force.

[0054] With reference to Figure 2 and Figure 5 The connecting frame 222 is also provided with a pressure spring 26. The pressure spring 26 is located on the side of the square rod 223 close to the mounting frame 1, and one end of the pressure spring 26 abuts against the square rod 223, and the other end of the pressure spring 26 abuts against the inner wall of the connecting frame 222, so as to drive the square rod 223 to reset through the elastic force of the pressure spring 26.

[0055] The implementation principle of the door lock with replaceable lock cylinder in the embodiment 1 of the present application is as follows: when the lock cylinder 4 needs to be replaced, the key is inserted into the lock cylinder 4 from the handle 3 and the lock cylinder 4 is rotated. At this time, the lock cylinder 4 drives the transmission frame 23 to rotate through the intermediate sleeve 24, so that the side of the transmission frame 23 facing upward changes (i.e., the side in the width direction of the cross section faces upward). At this time, the distance from the top wall in the abutting groove 51 to the top end of the transmission frame 23 is greater than or equal to the distance from the top end of the fixed frame 5 to the bottom end of the fixed groove 31. At this time, the fixed frame 5 is pressed, and the top end of the fixed frame 5 can completely escape from the fixed groove 31, so that the fixing between the transmission frame 21 and the handle 3 is released.

[0056] Embodiment 2

[0057] The difference between the embodiment 2 of the present application and the embodiment 1 is that Figure 6 and Figure 7 The handle 3 is further provided with a protective cover 7 and a driving assembly 8. The protective cover 7 is fixedly sleeved on the outside of the handle 3. The driving assembly 8 is located in the protective cover 7 and includes a sliding frame 81, a driving piece 82 and a driving frame 83. The driving frame 83 is located in the protective cover 7 and is in sliding connection with the outer wall of the handle 3, and the sliding direction is the rotation axis direction of the transmission frame 23. One end of the driving frame 83 extends out of the protective cover 7 for a user to pull.

[0058] Referring to Figure 7 and Figure 8 The driving piece 82 includes a driving frame 821. In the embodiment of the present application, the number of the driving frame 821 is two, and the two driving frames 821 are located on the two sides of the driving frame 83 along the width direction of the driving frame 83. One end of each driving frame 821 is in rotary connection with the top of the driving frame 83 through a pin shaft, and the other end of each driving frame 821 is in rotary connection with the corresponding sliding frame 81 through a pin shaft.

[0059] Referring to Figure 7 and Figure 8 The bottom end of the sliding frame 81 is inserted into the fixed groove 31 and is in sliding connection with the fixed groove 31, and abuts against the top end of the fixed frame 5 to push the fixed frame 5 to slide and make the fixed frame 5 gradually escape from the fixed groove 31.

[0060] Referring to Figure 7 and Figure 8, the initial state, the fixed frame 5 is located at the top of its own sliding path, at this time the fixed frame 5 is still located in the fixed groove 31, and at this time the bottom end of the sliding frame 81 is in contact with the top end of the fixed frame 5. When the drive frame 83 is displaced away from the fixed frame 5, each drive frame 821 is displaced by the drive frame 83, so that the drive frame 821 drives the sliding frame 81 to slide downward, thereby causing the sliding frame 81 to push the fixed frame 5 to slide into the rotating frame 21, thereby causing the top end of the fixed frame 5 to gradually move out of the fixed groove 31, achieving unlocking between the handle 3 and the rotating frame 21.

[0061] Referring to Figure 7 and Figure 8 , the sliding frame 81 is further provided with a reset member 84, which is provided as a compression spring 26 in the embodiment of the application. The compression spring 26 is sleeved on the sliding frame 81, and the top end is in contact with the bottom of the sliding frame 81, and the bottom end is in contact with the top of the handle 3, so as to reset the sliding frame 81 by its own elastic force.

[0062] Referring to Figure 7 and Figure 8 , the handle 3 is further provided with a push frame 9 and a linkage 10, both of which are arranged in the protective cover 7. In the embodiment of the application, the push frame 9 is provided as an annular structure, which is sleeved on the handle 3 and is in sliding connection with the outer wall of the handle 3, and the sliding direction is the rotation axis direction of the handle 3. The mounting frame 1 is located on the sliding path of the push frame 9.

[0063] Referring to Figure 7 and Figure 8 , the linkage 10 comprises a linkage frame 101, which is provided as two in the embodiment of the application. The two linkage frames 101 are respectively located on both sides of the top of the push frame 9. One end of each linkage frame 101 is in rotary connection with the top end of the sliding frame 81 through a pin shaft, and the other end of each linkage frame 101 is in rotary connection with the top of the push frame 9 through a pin shaft.

[0064] Referring to Figure 7 , in the embodiment of the application, a certain distance is left between the inner wall of the handle 3 shell and the outer wall of the rotating frame 21.

[0065] Referring to Figure 7 and Figure 8 , in the initial state, the fixed frame 5 is located at the top of its own sliding path, and the push frame 9 does not contact the side wall of the mounting frame 1. When the drive frame 83 drives the sliding frame 81 to push the fixed frame 5 to slide through the drive frame 821, the sliding frame 81 drives the push frame 9 to slide towards the side wall of the mounting frame 1 through the linkage frame 101. When the fixed frame 5 is completely separated from the fixed groove 31 under the pushing of the sliding frame 81, the push frame 9 is in contact with the side wall of the mounting frame 1 at this time.

[0066] Referring to Figure 7 and Figure 8 Thereafter, the sliding frame 81 continues to slide, thereby causing the sliding frame 81 to continue to pass through the linkage frame 101, and causing the pushing frame 9 to slide, thereby causing the pushing frame 9 to push the mounting frame 1, and further causing the handle 3 to gradually move away from the handle 3 by the reaction force. In this process, the fixed slot 31 gradually deviates, thereby causing the fixed slot 31 to deviate from the fixed frame 5, and further causing the fixed frame 5 to be able to abut against the inner wall of the handle 3 under the elastic force of the elastic member 6 when the user releases the driving frame 83 and the sliding frame 81 returns to the initial position under the elastic force of the reset member 84, thereby reducing the probability of the fixed frame 5 being re-inserted into the fixed slot 31.

[0067] The implementation principle of the door lock with a replaceable lock cylinder according to Embodiment 2 of the present application is as follows: in use, the driving frame 83 is pulled to gradually slide out of the protective cover 7, at this time, the driving frame 83 drives the sliding frame 81 to slide downward through the linkage frame 821, and further causes the sliding frame 81 to push the fixed frame 5 to slide into the rotating frame 21, thereby causing the top end of the fixed frame 5 to gradually move out of the fixed slot 31, and achieving the unlocking between the handle 3 and the rotating frame 21.

[0068] In this process, the sliding frame 81 drives the pushing frame 9 to slide toward the side wall of the mounting frame 1 through the linkage frame 101. When the fixed frame 5 completely deviates from the fixed slot 31 under the pushing of the sliding frame 81, at this time, the pushing frame 9 abuts against the side wall of the mounting frame 1. Thereafter, the sliding frame 81 continues to drive the pushing frame 9 to slide through the linkage frame 101, thereby causing the pushing frame 9 to push the mounting frame 1, and further causing the handle 3 to gradually move away from the handle 3 by the reaction force.

[0069] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A door lock with a replaceable lock cylinder, comprising a mounting bracket (1), a transmission mechanism (2), a handle (3), and a lock cylinder (4), wherein the mounting bracket (1) is used for mounting on a door body, and the lock cylinder (4) is installed inside the handle (3), characterized in that: The transmission mechanism (2) includes a rotating frame (21), a transmission assembly (22), and a transmission frame (23). The rotating frame (21) is rotatably connected to the mounting frame (1) and drives the lock body to move through the transmission assembly (22). The transmission frame (23) is mounted on the handle (3) and one end is inserted into the rotating frame (21). The lock cylinder (4) drives the rotating frame (21) to rotate through the transmission frame (23). The mounting bracket (1) is also provided with a fixing bracket (5), which is slidably connected to the mounting bracket (1) and one end is inserted into the handle (3). The fixing bracket (5) is also provided with an abutment groove (51). The transmission bracket (23) abuts against the inner wall of the abutment groove (51) to restrict the sliding of the fixing bracket (5). This allows the side of the transmission bracket (23) closest to the abutment groove (51) to change after the transmission bracket (23) rotates, so that the distance between itself and the inner wall of the abutment groove (51) is greater than or equal to the length of the fixing bracket (5) inserted into the handle (3), thereby allowing the fixing bracket (5) to completely detach from the handle (3) and release the fixing between the rotating bracket (21) and the handle (3).

2. A door lock with a replaceable lock cylinder according to claim 1, characterized in that: The handle (3) is also provided with a drive assembly (8), which includes a sliding frame (81), a driving member (82) and a drive frame (83). The sliding frame (81) is slidably connected to the handle (3) and the sliding direction is the same as that of the fixed frame (5). The fixed frame (5) is located on the sliding path of the sliding frame (81). The drive frame (83) is slidably connected to the handle (3) and is located at the end of the handle (3) away from the mounting frame (1). The drive frame (83) drives the sliding frame (81) to slide through the driving member (82).

3. A door lock with a replaceable lock cylinder according to claim 2, characterized in that: The drive component (82) includes a drive frame (821), one end of which is rotatably connected to the drive frame (83), and the other end is rotatably connected to the sliding frame (81).

4. A door lock with a replaceable lock cylinder according to claim 3, characterized in that: The handle (3) is also provided with a push frame (9) and a linkage (10). The push frame (9) is slidably connected to the handle (3), and the sliding direction of the push frame (9) is the same as the rotation axis direction of the handle (3). The mounting frame (1) is located on the sliding path of the push frame (9). The drive frame (83) drives the push frame (9) to slide through the linkage (10).

5. A door lock with a replaceable lock cylinder according to claim 4, characterized in that: The linkage component (10) includes a linkage frame (101), one end of which is rotatably connected to the push frame (9), and the other end is rotatably connected to the drive frame (821).

6. A door lock with a replaceable lock cylinder according to claim 2, characterized in that: The drive assembly (8) further includes a reset member (84) for resetting the slide frame (81) to its initial position by means of its own elasticity.

7. A door lock with a replaceable lock cylinder according to claim 1, characterized in that: The transmission assembly (22) includes a connecting frame (222) and a square rod (223). The connecting frame (222) is located on the side of the mounting frame (1) away from the handle (3) and is connected to the mounting frame (1). One end of the square rod (223) is located inside the connecting frame (222) and is slidably connected to the connecting frame (222). The sliding direction is the direction of the rotation axis of the rotating frame (21). A locking member (25) is also provided on the connecting frame (222). The locking member (25) is used to lock the connecting frame (222) and the square rod (223).

8. A door lock with a replaceable lock cylinder according to claim 7, characterized in that: The square rod (223) is also provided with a locking groove (2231), which extends along the sliding direction of the square rod (223). The locking member (25) includes a locking bolt (251), which is threadedly connected to the connecting frame (222) and extends into the connecting frame (222) at one end, abutting against the inner bottom wall of the locking groove (2231).

9. A door lock with a replaceable lock cylinder according to claim 1, characterized in that: The transmission frame (23) passes through the abutment groove (51) at one end along its own length direction, and its own height value is not equal to its own width value. When one side wall of the transmission frame (23) along its own height direction abuts against the inner wall of the abutment groove (51), the fixing frame (5) is still inserted in the handle (3).

10. A door lock with a replaceable lock cylinder according to claim 1, characterized in that: The fixing frame (5) is also provided with an elastic element (6), which is used to drive the fixing frame (5) to slide by its own elastic force so that the fixing frame (5) returns to the state of being inserted into the handle (3).

Images