Lock body

Abstract

The utility model relates to a lock body which comprises a lock shell and a spring bolt, a transmission rod is arranged in the lock shell, a shifting wheel is rotatably arranged in the lock shell, square core wheels used for being connected with an inner handle and an outer handle are arranged on the two sides of the shifting wheel respectively, a swing piece is movably arranged on the shifting wheel, linkage blocks are arranged on the square core wheels, and the linkage blocks are connected with the inner handle and the outer handle. A linkage groove matched with the linkage block is formed in the position, corresponding to the linkage block, of the swing piece, the shifting wheel is provided with a first clamping part and a second clamping part which are matched with the swing piece, and when the first clamping part and the square core wheel rotate in the unlocking direction, the linkage block is arranged in the linkage groove so as to drive the shifting wheel to rotate for unlocking. A driving piece is arranged on the side, facing the unlocking rotation direction, of the swing piece, and when the square core wheel rotates in the locking direction, the driving piece drives the swing piece to be placed into the second clamping part from the first clamping part, so that the linkage block is separated from the linkage groove. The technical scheme provided by the utility model has the technical effects of simple structure and convenience in operation.

Description

Technical Field

[0001] The utility model relates to the technical field of locks, in particular to a lock body. Background Art

[0002] A door lock is a piece of hardware installed on a door to maintain the privacy of a space. Its basic structure includes a lock tongue that can be extended and retracted under the action of an external force, and cooperates with a buckle box installed on the door frame to prevent the door from being opened by accident such as wind. The door lock in the prior art has a reverse locking function, and the user can lock the door by turning the key when outside. However, the user needs to lock the door with the key every time he goes out, which is cumbersome and easy to forget, causing a lot of inconvenience to the user. Utility Model Content

[0003] Based on the above problem, the utility model provides a lock body with simple structure and convenient operation.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lock body, comprising a lock shell and a lock tongue, a transmission rod is arranged in the lock shell, the transmission rod is used to connect the lock tongue and is slidably arranged in the lock shell, a thumbwheel is rotatably arranged in the lock shell, the thumbwheel is used to drive the transmission rod to slide so that the lock tongue extends out or retracts the lock shell, square core wheels for connecting an inner handle and an outer handle are respectively arranged on both sides of the thumbwheel, a swinging member is movably arranged on the thumbwheel, a linkage block is arranged on the square core wheel, a linkage groove adapted to the linkage block is arranged on the swinging member corresponding to the linkage block, the thumbwheel has a first clamping portion and a second clamping portion matched with the swinging member, when the square core wheel rotates in the unlocking direction at the first clamping portion, the linkage block is placed in the linkage groove to drive the thumbwheel to rotate and unlock, and a driving member is arranged on the side of the swinging member facing the unlocking rotation direction, and when the square core wheel rotates in the locking direction, the driving member drives the swinging member to be placed from the first clamping portion into the second clamping portion, so that the linkage block is separated from the linkage groove.

[0005] By adopting the above technical scheme, when the inner handle or the outer handle drives the square core wheel to rotate in the unlocking direction, the linkage block on the square core wheel abuts against the linkage groove on the swinging member, so that when the linkage block rotates, the swinging member is driven to drive the thumbwheel to rotate synchronously, prompting the transmission rod to drive the lock tongue to retract into the lock shell to complete the unlocking. When locking is required, the inner handle or the outer handle drives the square core wheel to rotate in the locking direction, and the driving member drives the swinging member to move from the first clamping part to the second clamping part, and the linkage block disengages from the linkage groove, so that the square core wheel rotates idly and does not conflict with the linkage groove to drive the thumbwheel to rotate, so it cannot be unlocked, and locking is achieved. The structure is simple and the locking structure is ingenious, which is convenient for users to lock the door and easy to operate.

[0006] The utility model is further configured as follows: a toggle block is arranged on the square core wheel, and a convex block abutting and cooperating with the toggle block is arranged on the side of the toggle wheel facing the inner handle.

[0007] By adopting the above technical solution, the setting of the toggle block and the protrusion makes it possible that when the door is in the inner position, no matter whether the door is locked inside or outside, the door can be unlocked by rotating the square core wheel of the inner handle in the unlocking direction to drive the dial wheel to rotate. The protrusion can be a bolt or other parts, and the lock housing is provided with a connecting hole connected to the bolt at the position corresponding to the bolt, which facilitates installation and allows the installation position of the bolt to be located no matter which direction the lock housing is installed, so that it protrudes along the direction of the inner handle and abuts against the toggle block on the corresponding square core wheel. The structure is simple.

[0008] The utility model is further configured that: a reset member is provided on the other side of the swing member relative to the driving member, and when the dial wheel rotates along the unlocking direction, the reset member drives the swing member to reset and rotate from the second clamping position to the first clamping position.

[0009] By adopting the above technical solution, when the thumbwheel rotates in the unlocking direction, the reset member will abut against the swing member and push the swing member, causing it to reset and rotate from the second position to the first position to release the locked state, which is easy to operate.

[0010] The utility model is further arranged that: the driving member includes a main body, a pushing block, and a driving block. The main body can be rotatably arranged in the lock shell, and the pushing block and the driving block are arranged on the main body. When the swinging member is located at the first clamping part, the pushing block abuts and cooperates with the swinging member. When the square core wheel rotates along the locking direction, the linkage block pushes the driving block to cause the main body to rotate, and drives the pushing block to push the swinging member to move to the second clamping part.

[0011] By adopting the above technical scheme, when the first clamping portion is in the position, the pushing block abuts against the swinging piece, and when the square core wheel is lifted upward to rotate the inner handle or the outer handle, the square core wheel rotates in the locking direction. During rotation, the driving block is pushed to drive the main body to rotate. When the main body rotates, the pushing block abutting against the swinging piece pushes the swinging piece to rotate, causing the swinging piece to move from the first clamping portion to the second clamping portion, releasing the cooperation between the linkage block and the linkage groove, and realizing reverse lifting and locking. When unlocking is required, the inner handle can be pressed down and rotated in the unlocking direction inside the door. By setting the toggle block and the protrusion, the dial wheel can be toggled to rotate and unlock. On the outside, the key can be inserted into the keyhole to drive the dial wheel to rotate and unlock, which is convenient for operation.

[0012] The utility model is further configured as follows: a hook portion is provided on the dial wheel near the first clamping portion, and a positioning block is provided on the lock shell near the push block. When the swinging member is located at the first clamping portion, the positioning block abuts and cooperates with the push block. When the dial wheel rotates along the unlocking direction, the hook abuts and drives the push block to return to the positioning block position.

[0013] By adopting the above technical solution, the positioning block is used to locate the installation position of the driving member, which is convenient for assembly. The hook is set so that when the dial wheel rotates in the unlocking direction, the hook pushes the pushing block to move with the rotation of the dial wheel, prompting the pushing block to reset to the position abutting against the positioning block. The structure is reasonable and the coordination is stable.

[0014] The utility model is further configured as follows: the lock shell includes a first shell and a second shell, positioning columns are arranged at the four corners of the first shell, positioning holes are arranged at the positions of the positioning columns of the second shell corresponding to the positions of the positioning columns, the positioning columns and the positioning holes are connected with bolts, and an installation hole is arranged on the main body, and the installation hole is sleeved on the outer side of a corresponding positioning column.

[0015] By adopting the above technical solution, the setting of the positioning column and the positioning hole facilitates the connection and installation of the first shell and the second shell, and the structure is more stable. The setting of the installation hole makes it possible to install the main body by simply putting the main body on the corresponding positioning column position, which facilitates the positioning and installation of the main body while further reducing the number of components and simplifying the structure.

[0016] The utility model is further configured as follows: a mounting groove is provided at one end of the swinging member facing the driving member, a spring marble is provided in the mounting groove, when the swinging member is in the first clamping position, the spring marble cooperates with the first clamping portion, and when the swinging member is in the second clamping position, the spring marble cooperates with the second clamping portion.

[0017] By adopting the above technical solution, the spring marble includes a spring and a marble. One end of the marble is connected to the spring, and the other end protrudes toward the notch of the mounting groove. The protruding part is adapted to the first clamping part and the second clamping part. When the swinging member is placed from the first clamping part position to the second clamping part position, the movement of the swinging member causes the spring to compress and drive the marble to retract. When it moves to the second clamping part position, the spring pressure disappears, causing the marble to extend out and be placed in the second clamping part, thereby maintaining the stability of the structure in which the swinging member is placed in the second clamping part, improving the structural strength, and simplifying the structure.

[0018] The utility model is further configured as follows: a limiting block is arranged on the square core wheel, and a limiting groove for limiting the rotation angle of the square core wheel is arranged at a position of the lock housing corresponding to the limiting block.

[0019] By adopting the above technical solution, the cooperation between the limit block and the limit groove limits the rotation angle range of the inner handle and the outer handle on the square core wheel, ensuring the stability of the overall structure, avoiding excessive rotation angles of the inner handle and the outer handle, and further improving the reliability of the structure.

[0020] Compared with the prior art, the beneficial effects of the utility model are as follows: when locking is required, the inner handle or the outer handle is controlled to be lifted in reverse, so that the square core wheel rotates in the locking direction, and the linkage block on the square core wheel pushes the driving block to move, causing the main body to rotate. The rotation of the main body drives the pushing block to push the swinging member to move from the first clamping part to the second clamping part, releasing the cooperation between the linkage block and the linkage groove, and the outer handle is in an idling state, and the door cannot be opened, thereby achieving locking. When unlocking is required, the square core wheel on the inner handle side can drive the thumb wheel to rotate in the unlocking direction to unlock through the setting of the toggle block and the protrusion, and the thumb wheel needs to be rotated to unlock by a key on the outer handle side. When rotating to unlock, the reset member will push the swinging member to reset and rotate from the second clamping part to the first clamping part as the thumb wheel rotates, thereby releasing the lock. The structure is simple and the locking operation is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the first station structure on the inner side of the door of an embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of the first station structure on the outer side of the door of an embodiment of the utility model;

[0023] Figure 3 This is a schematic diagram of the second station structure on the inner side of the door of an embodiment of the utility model;

[0024] Figure 4 for Figure 3 A magnified view of the structure of part A;

[0025] Figure 5 This is a schematic diagram of the reset structure of the inner swing member of the door according to an embodiment of the utility model;

[0026] Figure 6 for Figure 5 A magnified view of the structure of part B;

[0027] Figure 7 It is a schematic diagram of the structure of an embodiment of the utility model;

[0028] The meaning of the numbers in the figure: 1-lock shell, 101-first shell, 102-second shell, 2-lock tongue, 3-transmission rod, 4-push wheel, 5-square core wheel, 6-swinging member, 7-linkage block, 8-linkage groove, 9-first clamping part, 10-second clamping part, 11-driving member, 1101-main body, 1102-pushing block, 1103-driving block, 12-push block, 13-bump, 14-resetting member, 15-hook, 16-positioning block, 17-positioning column, 18-positioning hole, 19-mounting hole, 20-spring marble, 21-limiting block, 22-limiting groove. DETAILED DESCRIPTION

[0029] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0030] See attached Figure 1-7 The utility model discloses a lock body, including a lock shell 1 and a lock tongue 2. A transmission rod 3 is arranged in the lock shell 1. The transmission rod 3 is used to connect the lock tongue 2 and is slidably arranged in the lock shell 1. A dial wheel 4 is rotatably arranged in the lock shell 1. The dial wheel 4 is used to drive the transmission rod 3 to slide so that the lock tongue 2 extends out or retracts the lock shell 1. Square core wheels 5 for connecting the inner handle and the outer handle are respectively arranged on both sides of the dial wheel 4. A swinging member 6 is movably arranged on the dial wheel 4. A linkage block 7 is arranged on the square core wheel 5. The swinging member 6 is connected to the inner handle and the outer handle. A linkage groove 8 matched with the linkage block 7 is provided on the linkage block 7, and the thumbwheel 4 has a first clamping portion 9 and a second clamping portion 10 matched with the swinging member 6. When the first clamping portion 9 and the square core wheel 5 rotate in the unlocking direction, the linkage block 7 is placed in the linkage groove 8 to drive the thumbwheel 4 to rotate and unlock. The swinging member 6 is provided with a driving member 11 on the side facing the unlocking rotation direction. When the square core wheel 5 rotates in the locking direction, the driving member 11 drives the swinging member 6 from the first clamping portion 9 to the second clamping portion 10, so that the linkage block 7 is disengaged from the linkage groove 8. When the inner handle or the outer handle drives the square core wheel 5 to rotate in the unlocking direction, the linkage block 7 on the square core wheel 5 abuts against the linkage groove 8 on the swinging member 6, so that when the linkage block 7 rotates, the swinging member 6 is driven to drive the thumbwheel 4 to rotate synchronously, prompting the transmission rod 3 to drive the lock tongue 2 to retract into the lock shell 1 to complete the unlocking. When locking is required, the inner handle or the outer handle drives the square core wheel 5 to rotate in the locking direction, and the driving member 11 drives the swinging member 6 to move from the first clamping part 9 to the second clamping part 10, and the linkage block 7 disengages from the linkage groove 8, so that the square core wheel 5 idles and does not conflict with the linkage groove 8 to drive the thumbwheel 4 to rotate, so it cannot be unlocked, and locking is achieved. The structure is simple and the locking structure is ingenious, which is convenient for users to lock the door and easy to operate.

[0031] This embodiment is further provided with: a toggle block 12 is provided on the square core wheel 5, and a convex block 13 is provided on the side of the thumbwheel 4 facing the inner handle, which is in contact with the toggle block 12. The provision of the toggle block 12 and the convex block 13 enables, when the door is in the inner position, whether the door is locked inside or outside, the square core wheel 5 of the inner handle can be rotated in the unlocking direction to drive the thumbwheel 4 to rotate and open the door, thereby achieving unlocking. The convex block 13 can be a bolt or other parts, and a connecting hole connected to the bolt is provided at the position of the lock housing 1 corresponding to the bolt, which facilitates installation, and enables the bolt to be located in the installation position no matter which direction the lock housing 1 is installed, so that the bolt protrudes in the direction of the inner handle and is in contact with the toggle block 12 on the corresponding square core wheel 5, and the structure is simple.

[0032] This embodiment is further configured as follows: a reset member 14 is provided on the other side of the swing member 6 relative to the driving member 11. When the dial 4 rotates in the unlocking direction, the reset member 14 drives the swing member 6 to reset and rotate from the second clamping portion 10 to the first clamping portion 9. When the dial 4 rotates in the unlocking direction, the reset member 14 abuts against the swing member 6 and pushes the swing member 6 to reset and rotate from the second position to the first position to release the locked state, which is convenient to operate.

[0033] This embodiment is further configured as follows: the driving member 11 includes a main body 1101, a pushing block 1102, and a driving block 1103. The main body 1101 is rotatably arranged in the lock housing 1, and the pushing block 1102 and the driving block 1103 are arranged on the main body 1101. When the swing member 6 is located at the first clamping portion 9, the pushing block 1102 abuts against the swing member 6. When the square core wheel 5 rotates along the locking direction, the linkage block 7 pushes the driving block 1103 to cause the main body 1101 to rotate, and drives the pushing block 1102 to push the swing member 6 to move to the second clamping portion 10. When the first clamping portion 9 is in position, the pushing block 1102 abuts against the swinging member 6. When the square core wheel 5 is lifted upward to rotate the inner handle or the outer handle, the square core wheel 5 rotates in the locking direction. During rotation, the driving block 1103 is pushed to drive the main body 1101 to rotate. When the main body 1101 rotates, the pushing block 1102 abutting against the swinging member 6 pushes the swinging member 6 to rotate, causing the swinging member 6 to move from the first clamping portion 9 to the second clamping portion 10, thereby releasing the cooperation between the linkage block 7 and the linkage groove 8, and realizing reverse lifting and locking. When unlocking is required, the inner handle can be pressed down and rotated in the unlocking direction inside the door. By setting the toggle block 12 and the protrusion 13, the dial wheel 4 can be toggled to rotate and unlock. On the outside, the key can be inserted into the keyhole to drive the dial wheel 4 to rotate and unlock, which is convenient for operation.

[0034] This embodiment is further provided with: a hook portion 15 is provided near the first clamping portion 9 of the dial wheel 4, and a positioning block 16 is provided near the push block 1102 of the lock housing 1. When the swinging member 6 is located at the first clamping portion 9, the positioning block 16 is in contact with the push block 1102, and when the dial wheel 4 rotates in the unlocking direction, the hook portion 15 is in contact with the push block 1102 and drives the push block 1102 to reset to the position of the positioning block 16. The positioning block 16 is provided to locate the installation position of the driving member 11, which is convenient for assembly. When the dial wheel 4 rotates in the unlocking direction, the hook portion 15 pushes the push block 1102 to move with the rotation of the dial wheel 4, so that the push block 1102 is reset to the position in contact with the positioning block 16. The structure is reasonable and the cooperation is stable.

[0035] This embodiment further provides that: the lock housing 1 includes a first housing 101 and a second housing 102, the first housing 101 is provided with positioning posts 17 at the four corners, the second housing 102 is provided with positioning holes 18 at the positions corresponding to the positioning posts 17, the positioning posts 17 and the positioning holes 18 are connected by bolts, and the main body 1101 is provided with mounting holes 19, which are sleeved on the outer side of a corresponding positioning post 17. The provision of the positioning posts 17 and the positioning holes 18 facilitates the connection and installation of the first housing 101 and the second housing 102, and the structure is more stable. The provision of the mounting holes 19 enables the main body 1101 to be sleeved on the corresponding positioning posts 17 when installing the main body 1101, which facilitates the positioning and installation of the main body 1101, and further reduces the number of components and simplifies the structure.

[0036] This embodiment further provides that: the end of the swing member 6 facing the driving member 11 is provided with a mounting groove (not shown in the figure), and a spring marble 20 is provided in the mounting groove. When the swing member 6 is at the first clamping portion 9 position, the spring marble 20 matches with the first clamping portion 9, and when the swing member 6 is at the second clamping portion 10 position, the spring marble 21 matches with the second clamping portion 10. The spring marble 20 includes a spring and a marble. One end of the marble is connected to the spring, and the other end protrudes toward the notch direction of the mounting groove 20. The protruding part is adapted to the first clamping portion 9 and the second clamping portion 10. When the swing member 6 is placed from the first clamping portion 9 position to the second clamping portion 10 position, the swing member 6 moves to cause the spring to compress and drive the marble to retract. When it moves to the second clamping portion 10 position, the spring pressure disappears, causing the marble to extend out and be placed in the second clamping portion 10, thereby maintaining the stability of the structure of the swing member 6 placed in the second clamping portion 10, improving the structural strength, and having a simple structure.

[0037] This embodiment further provides that: a limiting block 21 is provided on the square core wheel 5, and a limiting groove 22 for limiting the rotation angle of the square core wheel 5 is provided at the position of the lock housing 1 corresponding to the limiting block 21. The cooperation between the limiting block 21 and the limiting groove 22 limits the rotation angle range of the inner handle and the outer handle on the square core wheel 5, ensures the stability of the overall structure, avoids excessive rotation angles of the inner handle and the outer handle, and further improves the reliability of the structure.

[0038] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications of the above assumptions should also be regarded as the protection scope of the present invention.

Claims

1. A lock body, comprising a lock shell and a lock tongue, wherein a transmission rod is arranged in the lock shell, the transmission rod is used to connect the lock tongue and is slidably arranged in the lock shell, a thumbwheel is rotatably arranged in the lock shell, the thumbwheel is used to drive the transmission rod to slide so that the lock tongue extends out or retracts into the lock shell, and square core wheels for connecting an inner handle and an outer handle are arranged on both sides of the thumbwheel, characterized in that: A swinging piece is movably provided on the thumbwheel, a linkage block is provided on the square core wheel, a linkage groove matched with the linkage block is provided on the linkage block corresponding to the swinging piece, the thumbwheel has a first clamping portion and a second clamping portion matched with the swinging piece, when the first clamping portion and the square core wheel rotate in the unlocking direction, the linkage block is placed in the linkage groove to drive the thumbwheel to rotate and unlock, and a driving piece is provided on the side of the swinging piece facing the unlocking rotation direction, and when the square core wheel rotates in the locking direction, the driving piece drives the swinging piece from the first clamping portion to the second clamping portion, so that the linkage block is disengaged from the linkage groove.

2. A lock body according to claim 1, characterized in that: The square core wheel is provided with a toggle block, and the side of the toggle wheel facing the inner handle is provided with a convex block which abuts and cooperates with the toggle block.

3. A lock body according to claim 1, characterized in that: A reset member is arranged on the other side of the swing member relative to the driving member. When the dial rotates in the unlocking direction, the reset member drives the swing member to reset and rotate from the second clamping position to the first clamping position.

4. A lock body according to claim 1, characterized in that: The driving member includes a main body, a pushing block and a driving block. The main body can be rotatably arranged in the lock shell, and the pushing block and the driving block are arranged on the main body. When the swinging member is located at the first clamping part, the pushing block abuts and cooperates with the swinging member. When the square core wheel rotates along the locking direction, the linkage block pushes the driving block to cause the main body to rotate, and drives the pushing block to push the swinging member to move to the second clamping part.

5. A lock body according to claim 4, characterized in that: The thumbwheel is provided with a hook portion near the first clamping portion, and the lock housing is provided with a positioning block near the pushing block. When the swinging member is located at the first clamping portion, the positioning block abuts and cooperates with the pushing block. When the thumbwheel rotates along the unlocking direction, the hook abuts and drives the pushing block to return to the positioning block position.

6. A lock body according to claim 4, characterized in that: The lock housing includes a first shell and a second shell. Positioning columns are arranged at the four corners of the first shell. Positioning holes are arranged at the positions of the second shell corresponding to the positions of the positioning columns. The positioning columns and the positioning holes are connected with bolts. A mounting hole is arranged on the main body, and the mounting hole is sleeved on the outer side of a corresponding positioning column.

7. A lock body according to claim 1, characterized in that: The swing member is provided with a mounting groove at one end facing the driving member, and a spring ball is provided in the mounting groove. When the swing member is in the first clamping position, the spring ball cooperates with the first clamping portion. When the swing member is in the second clamping position, the spring ball cooperates with the second clamping portion.

8. A lock body according to claim 1, characterized in that: The square core wheel is provided with a limit block, and the lock housing is provided with a limit groove for limiting the rotation angle of the square core wheel at the position corresponding to the limit block.

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