Gear-driven anti-clamping lock body

Abstract

The utility model belongs to the technical field of door locks, and particularly relates to a gear-driven anti-clamping lock body, which comprises a lock shell, a latch bolt component and a main spring bolt component are connected inside and outside the front end of the lock shell in a sliding manner, a lock core and a handle core are rotatably connected onto the lock shell, and a latch bolt shifting piece capable of driving the latch bolt component to slide inwards is sleeved on the handle core. A handle gear is synchronously and rotationally connected to the handle core, a lock cylinder linkage gear is synchronously and rotationally connected to the lock cylinder, a stirring gear rotating on the lock shell is meshed with the handle gear and the lock cylinder linkage gear, a spring bolt linkage plate is arranged on the main spring bolt assembly, a spring bolt driving strip-shaped hole is formed in the spring bolt linkage plate in the vertical direction, and a spring bolt driving strip-shaped hole is formed in the spring bolt driving strip-shaped hole. A spring bolt linkage block which is arranged in the spring bolt driving strip-shaped hole in a sliding fit mode is arranged on the shifting gear. The lock cylinder is simple in structure, reasonable in design and low in cost, locking and unlocking functions of the lock cylinder and the commercial handle cylinder can be achieved through the gear mechanism, and transmission of the lock cylinder and the commercial handle cylinder is stable, smooth and free of pause.

Description

Technical field:

[0001] The utility model belongs to the technical field of door locks, in particular to an anti-stuck lock body driven by a gear. Background technology:

[0002] Existing common mechanical locks generally use corresponding lever transmission mechanisms to achieve the functions of locking and unlocking. Not only is the locking and unlocking transmission performance poor, but the transmission of the lever mechanism will greatly increase the friction, which is prone to stalling. The service life is not long, and the applicability and practicality are limited. Summary of the invention:

[0003] The utility model aims to provide a gear-driven anti-stuck lock body, which adopts a gear mechanism to realize the locking and unlocking functions, and has stable, smooth and non-stuttering transmission.

[0004] The utility model is achieved in this way:

[0005] A gear-driven anti-stuck lock body comprises a lock shell, a front end of the lock shell is slidably connected with an inclined tongue assembly and a main lock tongue assembly inwardly and outwardly, a lock core and a handle core are rotatably connected on the lock shell, a inclined tongue paddle which can drive the inclined tongue assembly to slide inwardly is mounted on the handle core, a hand gear is synchronously rotatably connected on the handle core, a lock core linkage gear is synchronously rotatably connected on the lock core, a toggle gear rotating on the lock shell is respectively meshed with the hand gear and the lock core linkage gear, a lock tongue linkage plate is provided on the main lock tongue assembly, a lock tongue driving strip hole is opened in the upper and lower directions on the lock tongue linkage plate, and a lock tongue linkage block which slides and fits in the lock tongue driving strip hole is provided on the toggle gear.

[0006] In the above-mentioned gear-driven anti-stuck lock body, the upper and lower parts of the lock shell are respectively connected with an upper sliding bolt and a lower sliding bolt for sliding inside and outside sliding. The upper sliding bolt and the lower sliding bolt are both provided with sliding bolt driving strip holes in the transverse direction. The lock shell is rotatably connected with a lower sliding bolt gear and a handle linkage gear which is coaxial with the toggle gear and rotates synchronously. The handle linkage gear is meshed with the lower sliding bolt gear. The lower sliding bolt gear is slidably fitted in the sliding bolt driving strip hole of the lower sliding bolt through the lower sliding bolt pin shaft, and the toggle gear is slidably fitted in the sliding bolt driving strip hole of the upper sliding bolt through the upper sliding bolt pin shaft.

[0007] In the above-mentioned gear-driven anti-stuck lock body, the upper sliding bolt and the lower sliding bolt are both provided with sliding bolt limiting strip holes in the up and down directions, and a lower sliding bolt limiting shaft fixed on the lock shell is slidably fitted in the sliding bolt limiting strip hole of the lower sliding bolt, and an upper sliding bolt limiting shaft fixed on the lock shell is slidably fitted in the sliding bolt limiting strip hole of the upper sliding bolt, and the lower sliding bolt gear is rotatably mounted on the upper sliding bolt limiting shaft.

[0008] In the above-mentioned gear-driven anti-stuck lock body, a lock tongue limiting strip hole is horizontally opened on the upper edge of the lock tongue linkage plate, and the toggle gear is rotatably connected to the lock shell through an assembly connecting shaft, and the assembly connecting shaft is slidably fitted in the lock tongue limiting strip hole.

[0009] In the above-mentioned gear-driven anti-stuck lock body, the end of the assembly connecting shaft passes outwardly through the lock tongue limiting strip hole and is mounted with a gear reinforcement plate, a matching through groove is provided on the gear reinforcement plate, and the end of the lock tongue linkage block passes outwardly through the lock tongue driving strip hole and is inserted into the matching through groove.

[0010] In the above-mentioned gear-driven anti-stuck lock body, the inner end of the lock tongue linkage block is embedded in the toggle gear, and the handle linkage gear is provided with a linkage notch for the lock tongue linkage block to penetrate.

[0011] The outstanding advantages of the utility model compared with the prior art are:

[0012] The utility model has the advantages of simple structure, reasonable design and low cost, and adopts a gear mechanism to enable the lock core and the handle core to realize the locking and unlocking functions, and the transmission is stable, smooth and has no setbacks. Description of the drawings:

[0013] Figure 1 It is the overall structure coordination diagram of the utility model;

[0014] Figure 2 It is an overall structural coordination diagram of the masterless lock tongue assembly of the utility model.

[0015] In the figure: 1. lock body; 2. inclined bolt assembly; 3. main bolt assembly; 4. inclined bolt paddle; 5. handle gear; 6. lock core linkage gear; 7. toggle gear; 8. bolt linkage plate; 9. bolt drive bar hole; 10. bolt linkage block; 11. upper sliding bolt; 12. lower sliding bolt; 13. sliding bolt drive bar hole; 14. lower sliding bolt gear; 15. handle linkage gear; 16. sliding bolt limit bar hole; 17. bolt limit bar hole; 18. gear reinforcement sheet. Specific implementation method:

[0016] The present invention is further described below with reference to specific embodiments. Figure 1 —2:

[0017] A gear-driven anti-stuck lock body comprises a lock housing 1, a front end of the lock housing 1 is slidably connected with a latch bolt assembly 2 and a main latch bolt assembly 3, a lock core and a handle core are rotatably connected on the lock housing 1, a latch bolt paddle 4 which can drive the latch bolt assembly 2 to slide inward is mounted on the handle core, a handle gear 5 is synchronously rotatably connected to the handle core, a lock core linkage gear 6 is synchronously rotatably connected to the lock core, a toggle gear 7 rotating on the lock housing 1 is respectively meshed with the handle gear 5 and the lock core linkage gear 6, a latch bolt linkage plate 8 is provided on the main latch bolt assembly 3, a latch bolt driving strip hole 9 is opened on the latch bolt linkage plate 8 in the up-down direction, and a latch bolt linkage block 10 which is slidably fitted in the latch bolt driving strip hole 9 is provided on the toggle gear 7. Among them, a reset spring which can push the latch bolt to slide outward is provided in the latch bolt assembly 2.

[0018] The utility model has the advantages of simple structure, reasonable design and low cost, and adopts a gear mechanism to enable the lock core and the handle core to realize the locking and unlocking functions, and the transmission is stable, smooth and has no setbacks.

[0019] Furthermore, in the present embodiment, the upper and lower parts of the lock housing 1 are respectively connected with an upper sliding bolt 11 and a lower sliding bolt 12 for sliding inward and outward movement, so that the gear mechanism can also simultaneously drive the upper sliding bolt 11 and the lower sliding bolt 12 to respectively extend and retract inward and outward to achieve the unlocking and locking functions, the upper sliding bolt 11 and the lower sliding bolt 12 are both provided with a sliding bolt driving strip hole 13 in the transverse direction, and the lock housing 1 is rotatably connected with a lower sliding bolt gear 14 and a handle linkage gear 15 which is coaxial with and rotates synchronously with the toggle gear 7, and the handle linkage gear 15 is meshed with the lower sliding bolt gear 14, and the lower sliding bolt gear 14 is slidably fitted in the sliding bolt driving strip hole 13 of the lower sliding bolt 12 through the pin shaft of the lower sliding bolt 12, and the toggle gear 7 is slidably fitted in the sliding bolt driving strip hole 13 of the upper sliding bolt 11 through the pin shaft of the upper sliding bolt 11.

[0020] In order to ensure that the upper sliding bolt 11 and the lower sliding bolt 12 can move stably in and out within the space-efficient lock housing 1, the upper sliding bolt 11 and the lower sliding bolt 12 are provided with sliding bolt limiting strip holes 16 in the up-down direction, and the sliding bolt limiting strip hole 16 of the lower sliding bolt 12 is slidably matched with the lower sliding bolt 12 limiting shaft fixed on the lock housing 1, and the sliding bolt limiting strip hole 16 of the upper sliding bolt 11 is slidably matched with the upper sliding bolt 11 limiting shaft fixed on the lock housing 1, and the lower sliding bolt gear 14 is rotatably fitted on the upper sliding bolt 11 limiting shaft.

[0021] Correspondingly, in the present embodiment, in order to enable the main lock tongue assembly 3 to stably move in and out within the space-efficient lock housing 1, a lock tongue limiting strip hole 17 is horizontally opened on the lock tongue linkage plate 8, and the toggle gear 7 is rotatably connected to the lock housing 1 via an assembly connecting shaft, and the assembly connecting shaft is slidably fitted in the lock tongue limiting strip hole 17.

[0022] In order to strengthen the connection between the lock tongue linkage plate 8 and the lock housing 1, the end of the assembly connecting shaft passes outwardly through the lock tongue limiting strip hole 17 and is mounted with a gear reinforcement plate 18, on which a matching through groove is provided, and the end of the lock tongue linkage block 10 passes outwardly through the lock tongue driving strip hole 9 and is inserted into the matching through groove.

[0023] Furthermore, the lock tongue linkage block 10 and the toggle gear 7 are split structures, and in order to make the toggle gear 7 and the handle linkage gear 15 coaxial and rotate synchronously, the inner end of the lock tongue linkage block 10 is embedded in the toggle gear 7, and the handle linkage gear 15 is provided with a linkage notch for the lock tongue linkage block 10 to pass through.

[0024] The above embodiment is only one of the preferred embodiments of the present utility model, and is not intended to limit the scope of implementation of the present utility model. Therefore, any equivalent changes made based on the shape, structure, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A gear-driven anti-stuck lock body, comprising a lock housing (1), a front end of the lock housing (1) being slidably connected to a latch bolt assembly (2) and a main latch bolt assembly (3), a lock core and a handle core being rotatably connected to the lock housing (1), a latch bolt paddle (4) being mounted on the handle core and capable of driving the latch bolt assembly (2) to slide inwardly, characterized in that: The handle core is synchronously rotatably connected with a handle gear (5), the lock core is synchronously rotatably connected with a lock core linkage gear (6), a toggle gear (7) rotatably mounted on a lock housing (1) is respectively meshed with the handle gear (5) and the lock core linkage gear (6), the main lock bolt assembly (3) is provided with a lock bolt linkage plate (8), a lock bolt driving strip hole (9) is provided on the lock bolt linkage plate (8) in the up and down directions, and a lock bolt linkage block (10) is provided on the toggle gear (7) and is slidably fitted in the lock bolt driving strip hole (9).

2. The gear-driven anti-stuck lock body according to claim 1, characterized in that: The upper and lower parts of the lock housing (1) are respectively connected to an upper sliding bolt (11) and a lower sliding bolt (12) for sliding in and outward sliding. The upper sliding bolt (11) and the lower sliding bolt (12) are both provided with sliding bolt driving strip holes (13) in the transverse direction. The lock housing (1) is rotatably connected to a lower sliding bolt gear (14) and a handle linkage gear (15) which is coaxial with and rotates synchronously with the toggle gear (7). The handle linkage gear (15) is meshed with the lower sliding bolt gear (14). The lower sliding bolt gear (14) is slidably fitted in the sliding bolt driving strip hole (13) of the lower sliding bolt (12) through the pin shaft of the lower sliding bolt (12). The toggle gear (7) is slidably fitted in the sliding bolt driving strip hole (13) of the upper sliding bolt (11) through the pin shaft of the upper sliding bolt (11).

3. The gear-driven anti-stuck lock body according to claim 2, characterized in that: The upper sliding bolt (11) and the lower sliding bolt (12) are both provided with sliding bolt limiting strip holes (16) in the up-down direction; a lower sliding bolt (12) limiting shaft fixed on the lock housing (1) is slidably matched in the sliding bolt limiting strip hole (16) of the lower sliding bolt (12); a upper sliding bolt (11) limiting shaft fixed on the lock housing (1) is slidably matched in the sliding bolt limiting strip hole (16) of the upper sliding bolt (11); and the lower sliding bolt gear (14) is rotatably sleeved on the upper sliding bolt (11) limiting shaft.

4. The gear-driven anti-stuck lock body according to claim 1, characterized in that: A lock tongue limiting strip hole (17) is provided in the transverse direction on the lock tongue linkage plate (8); the toggle gear (7) is rotatably connected to the lock housing (1) via an assembly connecting shaft, and the assembly connecting shaft is slidably fitted in the lock tongue limiting strip hole (17).

5. The gear-driven anti-stuck lock body according to claim 4, characterized in that: The end of the assembly connection shaft passes through the lock tongue limiting strip hole (17) outwardly and is fitted with a gear reinforcement sheet (18), a matching through slot is provided on the gear reinforcement sheet (18), and the end of the lock tongue linkage block (10) passes through the lock tongue driving strip hole (9) outwardly and is inserted into the matching through slot.

6. The gear-driven anti-stuck lock body according to claim 2, characterized in that: The inner end of the lock tongue linkage block (10) is embedded in the toggle gear (7), and the handle linkage gear (15) is provided with a linkage notch for the lock tongue linkage block (10) to penetrate.

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