Gear-driven lock body

Abstract

The utility model discloses a gear transmission lock body which comprises a base and a face cover which are fixed through screws, a gear transmission structure and a latch bolt body are arranged between the base and the face cover, mechanical locks are arranged on the base and the face cover, and the gear transmission structure comprises a semicircular gear, a transmission gear, a linkage plate and a latch bolt shifting piece. The transmission gear is rotationally connected to the base through a shaft rod. The semicircular gear is connected with a lock cylinder of the mechanical lock, and the lock cylinder drives the semicircular gear to be meshed with or separated from the transmission gear when rotating. The corner of the latch bolt shifting piece is rotationally connected to the base through a shaft body, and one end of the latch bolt shifting piece is connected with the latch bolt body. The mechanical locking and unlocking device is reasonable in structural arrangement, transmission efficiency can be improved, abrasion to structural components can be reduced, the accuracy of the locking and unlocking position can be guaranteed, mechanical locking and unlocking operation can be completed in an extremely narrow space, the space utilization efficiency and the overall structure size are improved, and use requirements under different conditions can be met.

Description

Technical Field

[0001] This utility model belongs to the field of lock body technology, specifically relating to a gear-driven lock body. Background Technology

[0002] Locks are a common structure installed on doors, usually using a series of gears to open the door. While they can meet general usage needs, existing technology has certain shortcomings. This not only affects the ease of unlocking but also causes significant wear and tear. Over time, this can affect the stability and reliability of the transmission. Furthermore, the overall size of existing locks is relatively large, which can also affect the effectiveness of installation. Utility Model Content

[0003] The purpose of this utility model is to provide a gear-driven lock body with a reasonable structural design that is conducive to improving the smoothness of use.

[0004] The technical solution to achieve the purpose of this utility model is a gear-driven lock body, including a base and a cover fixed by screws. A front panel is provided on the side of the base and the cover. A gear transmission structure and a latch are provided between the base and the cover. A mechanical lock is provided on the base and the cover. The gear transmission structure is connected between the latch and the mechanical lock.

[0005] The gear transmission structure includes a semi-circular gear, a transmission gear, a linkage plate, and a slanted tongue actuating element;

[0006] The transmission gear is rotatably connected to the base via a shaft;

[0007] The semi-circular gear is connected to the lock cylinder of the mechanical lock, and the lock cylinder drives the semi-circular gear to engage or disengage with the transmission gear when it rotates;

[0008] The corner of the oblique tongue actuator is rotatably connected to the base via a shaft, and one end of the oblique tongue actuator is connected to the oblique tongue body.

[0009] One end of the linkage plate is connected to the transmission gear, and the other end of the linkage plate is rotatably connected to the other end of the inclined tongue actuator.

[0010] A further preferred embodiment is that: a strip-shaped guide groove is provided in the middle of the linkage plate, a C-shaped recess is provided at one end of the linkage plate, and a waist-shaped groove is provided at the other end of the linkage plate;

[0011] The base is provided with a guide post, which is disposed in the strip guide groove and the length of the strip guide groove is greater than the diameter of the guide post.

[0012] The end of the oblique tongue actuator is provided with a round shaft;

[0013] A protruding post is provided on the top surface of the transmission gear near the edge. The protruding post is located in the C-shaped recess area, and the round shaft is located in the waist-shaped groove. The length of the waist-shaped groove is greater than the diameter of the round shaft.

[0014] A further preferred embodiment is that the base is further provided with a high-strength plate, a square locking tongue, and a high-strength plate guide plate;

[0015] The square locking tongue is located on the side of the high-strength plate, and the high-strength plate directional plate is located on the top surface of the horizontal plate of the high-strength plate;

[0016] The directional plate and the transverse plate of the high-strength plate are provided with strip grooves;

[0017] The shaft is disposed within the strip-shaped groove, and the length of the strip-shaped groove is greater than the diameter of the shaft.

[0018] A further preferred embodiment is that the top surface of the high-strength plate directional plate is provided with a connecting ring plate, and a limiting protrusion is fixed on the connecting ring plate;

[0019] The top surface of the transmission gear is provided with a recessed area, and an arc-shaped limiting groove is provided in the recessed area.

[0020] The transmission gear is located on the top surface of the connecting ring plate, and the limiting protrusion can be translatably disposed within the arc-shaped limiting groove;

[0021] When the transmission gear rotates, it is limited within the arc-shaped limiting groove by the limiting protrusion.

[0022] A further preferred embodiment is that a torsion spring is provided within the recessed area;

[0023] The torsion spring is sleeved on the center of the transmission gear, and its two ends abut against the inner wall of the recessed area and the limiting protrusion, respectively.

[0024] A further preferred embodiment is that the base is further provided with a locking tongue protrusion, and the locking tongue protrusion is provided with a reset torsion spring;

[0025] One end of the reset torsion spring rests against the tail of the latch body and the other end rests against the latch protrusion, for resetting the latch body to extend out of the front panel.

[0026] A further preferred embodiment is that the mechanical lock is provided with a guide plate, and the guide plate is provided with an arc-shaped guide groove;

[0027] The top of the semi-circular gear is provided with an arc-shaped guide block, which is located in the arc-shaped guide groove.

[0028] A further preferred embodiment is that the length of the arc-shaped guide groove is greater than the length of the arc-shaped guide block.

[0029] This utility model has positive effects: its structure is reasonably designed, and its gear transmission structure includes a semi-circular gear, a transmission gear, a linkage plate, and a slanted tongue actuating component. Through gear transmission, it is beneficial to improve transmission efficiency and reduce wear on structural components, ensuring the accuracy of the switch and lock position. At the same time, it can complete the mechanical switch and lock operation in extremely narrow spaces, improving space utilization efficiency and the overall structural volume. It is beneficial to meet the usage needs of different situations, improves the stability and reliability of use, and has strong applicability. Attached Figure Description

[0030] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0031] Figure 1 This is a schematic diagram of the structure of this utility model;

[0032] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0033] Figure 3 This is a schematic diagram of the transmission gear and the high-pressure plate in this utility model;

[0034] Figure 4 This is a schematic diagram of the specific structure of the linkage plate in this utility model;

[0035] Figure 5 This is a schematic diagram of the structure of the oblique tongue actuating component and the oblique tongue body in this utility model;

[0036] Figure 6 This is a schematic diagram showing the disassembled structure of the transmission gear and the high-pressure plate in this utility model.

[0037] Reference numerals: Base 1, Cover 2, Front panel 3, Gear transmission structure 4, Semi-circular gear 41, Transmission gear 42, Linkage plate 43, Slanted tongue actuating component 44, Slanted tongue body 5, Mechanical lock 6, Shaft 7, Shaft body 8, Strip guide groove 9, C-shaped recessed area 10, Waist-shaped groove 11, Guide post 12, Round shaft 13, Protruding post 14, Force plate 15, Square lock tongue 16, Force plate directional plate 17, Strip groove 18, Connecting ring plate 19, Limiting protrusion 20, Recessed area 21, Arc-shaped limiting groove 22, Torsion spring component 23, Lock tongue protruding post 24, Reset torsion spring 25, Guide plate 26, Arc-shaped guide groove 27, Arc-shaped guide block 28. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] Example

[0040] See Figures 1 to 6 As shown, a gear-driven lock body includes a base 1 and a cover 2 fixed by screws. A front panel 3 is provided on the side of the base and the cover. In this embodiment, the above structure is a conventional structure of the prior art, and it is only applied in a simple way, so it is not described in detail.

[0041] Meanwhile, in this embodiment, a gear transmission structure 4 and a slanted tongue 5 are provided between the base and the cover, and a mechanical lock 6 is provided on the base and the cover. The gear transmission structure is connected between the slanted tongue and the mechanical lock. In this embodiment, the slanted tongue and the mechanical lock are conventional structures of the prior art, and are simply applied. The slanted tongue is provided with a magnetic block that cooperates with the magnet on the lock box on the door frame.

[0042] In this embodiment, the gear transmission structure includes a semi-circular gear 41, a transmission gear 42, a linkage plate 43, and a latching lever 44. During assembly, the transmission gear is rotatably connected to the base via a shaft 7. The semi-circular gear is connected to the lock cylinder of the mechanical lock, and the lock cylinder, when rotating, drives the semi-circular gear to engage or disengage with the transmission gear. The corner of the latching lever is rotatably connected to the base via a shaft 8, and one end of the latching lever is connected to the latching tongue. Furthermore, one end of the linkage plate is connected to the transmission gear, and the other end of the linkage plate is rotatably connected to the other end of the latching lever. In use, the lock cylinder of the mechanical lock drives the semi-circular gear to rotate and engage with the transmission gear, causing the transmission gear to rotate. The transmission gear then drives the linkage plate to translate, and the translation of the linkage plate causes the latching lever to rotate around the shaft, thereby causing the latching tongue to retract and complete the opening and closing.

[0043] In this embodiment, a strip-shaped guide groove 9 is provided in the middle of the linkage plate, a C-shaped recessed area 10 is provided at one end of the linkage plate, and a waist-shaped groove 11 is provided at the other end of the linkage plate. The strip-shaped guide groove ensures the effectiveness and reliability of the translation of the linkage plate, while the waist-shaped groove ensures the smoothness of the end movement. A guide post 12 is provided on the base, the guide post is located in the strip-shaped guide groove, and the length of the strip-shaped guide groove is greater than the diameter of the guide post. A round shaft 13 is provided at the end of the oblique tongue actuator. A protruding post 14 is provided near the edge of the top surface of the transmission gear, the protruding post is located in the C-shaped recessed area, and the round shaft is located in the waist-shaped groove, the length of the waist-shaped groove being greater than the diameter of the round shaft. The protruding post can drive the linkage plate to translate, while the round shaft and the waist-shaped groove ensure the effectiveness of the rotation of the oblique tongue actuator.

[0044] In this embodiment, the base also includes a high-pressure plate 15, a square latch 16, and a high-pressure plate guide plate 17. The square latch is located on the side of the high-pressure plate, and the high-pressure plate guide plate is positioned on the top surface of the horizontal plate of the high-pressure plate. A strip-shaped groove 18 is provided on the high-pressure plate guide plate and the horizontal plate of the high-pressure plate. The shaft is located within the strip-shaped groove, and the length of the groove is greater than the diameter of the shaft. This structure ensures the effectiveness of the square latch's opening and closing, while the strip-shaped groove ensures that the square latch does not affect the normal rotation of the transmission gear during translation.

[0045] In practical application, the top surface of the high-strength plate directional plate is provided with a connecting ring plate 19, and a limiting protrusion 20 is fixed on the connecting ring plate; the top surface of the transmission gear is provided with a recessed area 21, and an arc-shaped limiting groove 22 is provided in the recessed area; the transmission gear is located on the top surface of the connecting ring plate, and the limiting protrusion can be translatably disposed in the arc-shaped limiting groove; when the transmission gear rotates, it is limited in the arc-shaped limiting groove by the limiting protrusion. A torsion spring 23 is provided in the recessed area; the torsion spring is sleeved on the center of the transmission gear, and its two ends abut against the inner wall of the recessed area and the limiting protrusion, respectively. The arc-shaped limiting groove is used to limit the transmission gear when it rotates in conjunction with the limiting protrusion to prevent excessive rotation.

[0046] In this embodiment, the base is further provided with a latch protrusion 24, and a return torsion spring 25 is provided on the latch protrusion; one end of the return torsion spring abuts against the tail of the latch body and the other end abuts against the latch protrusion, for the return of the latch body to extend out of the front panel. Through the above structure, the return torsion spring can ensure that the latch body can quickly return to its original position and extend out of the front panel.

[0047] The mechanical lock is equipped with a guide plate 26, on which an arc-shaped guide groove 27 is provided. Furthermore, an arc-shaped guide block 28 is provided on the top of the semi-circular gear, and the arc-shaped guide block is located within the arc-shaped guide groove. The length of the arc-shaped guide groove is greater than the length of the arc-shaped guide block. When the semi-circular gear rotates, the arc-shaped guide block moves and is limited within the arc-shaped guide groove, ensuring the effectiveness of unlocking.

[0048] This utility model has positive effects: its structure is reasonably designed, and its gear transmission structure includes a semi-circular gear, a transmission gear, a linkage plate, and a slanted tongue actuating component. Through gear transmission, it is beneficial to improve transmission efficiency and reduce wear on structural components, ensuring the accuracy of the switch and lock position. At the same time, it can complete the mechanical switch and lock operation in extremely narrow spaces, improving space utilization efficiency and the overall structural volume. It is beneficial to meet the usage needs of different situations, improves the stability and reliability of use, and has strong applicability.

[0049] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural parts described in the instruction manual can also be processed without any doubt based on existing technical common sense. At the same time, the connection methods of each component adopt mature conventional methods in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so they will not be described in detail here.

[0050] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all embodiments here. However, these obvious variations or modifications derived from the essential spirit of this utility model still fall within the protection scope of this utility model.

Claims

1. A gear-driven lock body, comprising a base and a cover fixed by screws, wherein a front panel is provided on the side of the base and the cover, characterized in that: A gear transmission structure and a slanted tongue are provided between the base and the cover, and a mechanical lock is provided on the base and the cover. The gear transmission structure is connected between the slanted tongue and the mechanical lock. The gear transmission structure includes a semi-circular gear, a transmission gear, a linkage plate, and a slanted tongue actuating element; The transmission gear is rotatably connected to the base via a shaft; The semi-circular gear is connected to the lock cylinder of the mechanical lock, and the lock cylinder drives the semi-circular gear to engage or disengage with the transmission gear when it rotates; The corner of the oblique tongue actuator is rotatably connected to the base via a shaft, and one end of the oblique tongue actuator is connected to the oblique tongue body. One end of the linkage plate is connected to the transmission gear, and the other end of the linkage plate is rotatably connected to the other end of the inclined tongue actuator.

2. The gear-driven lock body according to claim 1, characterized in that: The linkage plate has a strip-shaped guide groove in the middle, a C-shaped recessed area at one end and a waist-shaped groove at the other end. The base is provided with a guide post, which is disposed in the strip guide groove and the length of the strip guide groove is greater than the diameter of the guide post. The end of the oblique tongue actuator is provided with a round shaft; A protruding post is provided on the top surface of the transmission gear near the edge. The protruding post is located in the C-shaped recess area, and the round shaft is located in the waist-shaped groove. The length of the waist-shaped groove is greater than the diameter of the round shaft.

3. The gear-driven lock body according to claim 1, characterized in that: The base is also equipped with a high-strength plate, a square locking tongue, and a high-strength plate directional plate; The square locking tongue is located on the side of the high-strength plate, and the high-strength plate directional plate is located on the top surface of the horizontal plate of the high-strength plate; The directional plate and the transverse plate of the high-strength plate are provided with strip grooves; The shaft is disposed within the strip-shaped groove, and the length of the strip-shaped groove is greater than the diameter of the shaft.

4. A gear-driven lock body according to claim 3, characterized in that: The top surface of the high-strength plate directional plate is provided with a connecting ring plate, and a limiting protrusion is fixed on the connecting ring plate; The top surface of the transmission gear is provided with a recessed area, and an arc-shaped limiting groove is provided in the recessed area. The transmission gear is located on the top surface of the connecting ring plate, and the limiting protrusion can be translatably disposed within the arc-shaped limiting groove; When the transmission gear rotates, it is limited within the arc-shaped limiting groove by the limiting protrusion.

5. A gear-driven lock body according to claim 4, characterized in that: A torsion spring is provided in the recessed area; The torsion spring is sleeved on the center of the transmission gear, and its two ends abut against the inner wall of the recessed area and the limiting protrusion, respectively.

6. A gear-driven lock body according to claim 1, characterized in that: The base is also provided with a locking tongue protrusion, and a reset torsion spring is provided on the locking tongue protrusion; One end of the reset torsion spring rests against the tail of the latch body and the other end rests against the latch protrusion, for resetting the latch body to extend out of the front panel.

7. A gear-driven lock body according to claim 1, characterized in that: The mechanical lock is provided with a guide plate, and the guide plate is provided with an arc-shaped guide groove; The top of the semi-circular gear is provided with an arc-shaped guide block, which is located in the arc-shaped guide groove.

8. A gear-driven lock body according to claim 7, characterized in that: The length of the arc-shaped guide groove is greater than the length of the arc-shaped guide block.

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