Reversible clutch for electronic lock

Abstract

The utility model discloses a reversing clutch for an electronic lock. The reversing clutch comprises a shell, a movable core, a fixed core, a pin bush, a movable pin and a tower spring, the center of the shell is of an annular structure, a boss is arranged on the top of the outer wall of the shell, a mounting hole penetrating to the inner wall of the shell is formed in the boss, step parts are arranged on the inner walls of the two ends of the shell, the movable core and the fixed core are arranged at the two ends of the shell respectively, the pin sleeve is arranged in the mounting hole of the boss of the shell, and a baffle ring is arranged at the front end of the movable pin. The tower spring is arranged at the rear end of the movable pin, and the front end of the movable pin extends out of the pin sleeve and the shell. Through the structural arrangement in the inner hole of the clutch shell and the movable core and the fixed core which are of split type and matched variable-cross-section cylindrical structures, the use in different door opening directions can be met by replacing the positions of the movable core and the fixed core under the condition that the shell is not disassembled in the lock shell, the application range is wide, the manufacturing of a production mold is simplified, and the production cost is reduced. The production cost is saved.

Description

Technical Field

[0001] This utility model relates to the field of electronic lock technology, and in particular to a reversible clutch for electronic locks. Background Technology

[0002] The traditional clutch assembly inside the lock body is simply a single mechanical component that moves a clutch pin, controlled by a small motor and gear set. The existing clutch rotates through the lock body handle, and works with the pull rod, the locking plate, and the main lock tongue slide plate to drive the main lock tongue. Once the existing clutch structure is fixed, it is directional, and during assembly, it needs to correspond to the left and right and inward and outward opening directions of the door, which has great limitations and low adaptability. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a reversible clutch for electronic locks that can change direction and is suitable for various occasions.

[0004] The technical solution adopted in this utility model is:

[0005] A reversible clutch for an electronic lock includes a housing, a moving core, a fixed core, a pin sleeve, a moving pin, and a tower spring;

[0006] The housing has a ring-shaped structure at its center. The outer wall of the housing is provided with a lever actuating arm and a plate actuating arm for the clutch to engage with the lock body lever and plate. A boss is provided at the top of the outer wall of the housing, with a mounting hole extending through to the inner wall of the housing. A limiting protrusion is provided on the inner wall of the housing opposite the mounting hole. Stepped portions are provided on the inner walls at both ends of the housing, with limiting grooves symmetrically arranged on the stepped portions in a direction perpendicular to the mounting hole and oriented towards the center of the housing. Arc-shaped support platforms protruding from the end faces are also symmetrically arranged on the annular surfaces at both ends of the housing.

[0007] The moving core and the fixed core are respectively located at both ends of the housing. Both the moving core and the fixed core are variable cross-section cylindrical structures that match the inner hole of the housing. The center of the outer end face of both the moving core and the fixed core is provided with a countersunk square groove that matches the square rod of the lock body handle. The inner end of the moving core is provided with an arc-shaped rotating block that matches the inner hole of the housing. The chord surface of the arc-shaped rotating block matches the limiting protrusion on the inner wall of the housing. The inner end face of the fixed core is provided with a limiting block that matches the upper limit groove of the step portion at the end of the housing.

[0008] The pin sleeve is installed in the mounting hole of the housing boss, a retaining ring is provided on the front end of the moving pin, and a tower spring is provided on the rear end of the moving pin. The front end of the moving pin extends out of the pin sleeve and the housing.

[0009] Specifically, the card plate actuating arm is flush with the front and rear end faces of the housing, and the pull rod actuating arm is located on the side near the rear end face of the housing. Both the card plate actuating arm and the pull rod actuating arm have arc-shaped extensions at their outer ends.

[0010] Specifically, a limiting protrusion is provided on the circumference of the outer end face of the moving core. The limiting protrusion matches the fan-shaped groove provided on the lock body shell and is used for the assembly and limiting of the moving core and the lock body shell.

[0011] Specifically, the rear annular surfaces of the outer end faces of the moving core and the fixed core are located on the arc-shaped support platform on the end face of the housing. The center of the countersunk square groove of the moving core is provided with a threaded hole that penetrates the moving core, and the center of the countersunk square groove of the fixed core is provided with a through hole that penetrates the fixed core. The screw passes through the through hole of the fixed core and is set in the threaded hole in the center of the moving core to install the moving core and the fixed core on both ends of the housing.

[0012] Specifically, the front end of the moving pin has a hemispherical structure.

[0013] Due to the adoption of the technical solution described above, this utility model has the following advantages:

[0014] The structure inside the clutch housing of this utility model, through the separate and matching variable cross-section cylindrical moving core and fixed core, allows for different opening directions to be met by changing the position of the moving core and fixed core without disassembling the housing. It has a wide range of applications, simplifies the production mold making, and saves production costs. Attached Figure Description

[0015] Figure 1 This is an exploded schematic diagram of this utility model.

[0016] Figure 2 This is a front view of the casing of this utility model.

[0017] Figure 3 This is a utility model Figure 2 AA sectional view.

[0018] Figure 4 This is a schematic diagram showing the direction of the inner end face of the moving core of this utility model.

[0019] Figure 5 This is a schematic diagram of the core fixing structure of this utility model.

[0020] Figure 6 This is a schematic diagram of the present invention installed in the lock body.

[0021] In the diagram: 1-Housing, 11-Pull rod actuating arm, 12-Clamping plate actuating arm, 13-Mounting hole, 14-Limiting protrusion, 15-Stepped part, 16-Limiting slot, 17-Arc-shaped support platform, 2-Moving core, 21-Counterhead square groove, 22-Arc-shaped rotating block, 221-Chord surface, 23-Limiting protrusion, 3-Fixed core, 31-Limiting block, 4-Pin sleeve, 5-Moving pin, 6-Tower spring, 7-Screw, 8-Clamping plate, 9-Pull rod, 10-Main locking tongue, 101-Large slide plate, 102-Clutch bearing. Detailed Implementation

[0022] The present invention will be further explained below with reference to the accompanying drawings and embodiments. However, this explanation should not be construed as limiting the scope of protection of the present invention. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0023] Combined with appendix Figure 1-6 The reversible clutch for an electronic lock shown includes a housing 1, a moving core 2, a fixed core 3, a pin sleeve 4, a moving pin 5, and a tower spring 6.

[0024] The housing 1 has a ring-shaped structure at its center. The outer wall of the housing 1 is provided with a lever actuating arm 11 and a plate actuating arm 12 for the clutch to cooperate with the lock body lever 9 and the plate 8. The top of the outer wall of the housing 1 is provided with a boss, and the boss is provided with a mounting hole 13 that extends through to the inner wall of the housing 1. The inner wall of the housing 1 opposite to the mounting hole 13 is provided with a limiting protrusion 14. The inner walls at both ends of the housing 1 are provided with stepped portions 15. The stepped portions 15 are provided with limiting grooves 16 symmetrically arranged with respect to the center of the housing 1 in a direction perpendicular to the mounting hole 13. The annular surfaces at both ends of the housing 1 are also symmetrically provided with arc-shaped support platforms 17 protruding from the end faces.

[0025] The moving core 2 and the fixed core 3 are respectively set on both ends of the housing 1. Both the moving core 2 and the fixed core 3 are variable cross-section cylindrical structures that match the inner hole of the housing 1. The center of the outer end face of the moving core 2 and the fixed core 3 is provided with a countersunk square groove 21 that matches the square rod of the lock body handle. The inner end of the moving core 2 is set with an arc-shaped rotating block 22 that matches the inner hole of the housing 1. The chord surface 221 of the arc-shaped rotating block 22 matches the limiting protrusion 14 on the inner wall of the housing 1. The inner end face of the fixed core 3 is provided with a limiting block 31 that matches the upper limit groove 16 of the end step 15 of the housing 1. The rear annular surface of the outer end face of the moving core 2 and the fixed core 3 is located on the arc-shaped support platform 17 on the end face of the housing 1. The center of the countersunk square groove 21 of the moving core 2 is provided with a threaded hole that penetrates the moving core 2. The center of the countersunk square groove 21 of the fixed core 3 is provided with a through hole that penetrates the fixed core 3. The screw 7 passes through the through hole of the fixed core 3 and is set in the threaded hole in the center of the moving core 2 to install the moving core 2 and the fixed core 3 on both ends of the housing 1.

[0026] The pin sleeve 4 is set in the mounting hole 13 of the boss of the housing 1. A retaining ring is set on the front end of the moving pin 5. The tower spring 6 is set on the rear end of the moving pin 5. The front end of the moving pin 5 extends out of the pin sleeve 4 and the housing 1. The front end of the moving pin 5 has a hemispherical structure.

[0027] Preferably, the card plate actuating arm 12 is flush with the front and rear end faces of the housing 1, and the pull rod actuating arm 11 is located on the side near the rear end face of the housing 1. Both the card plate actuating arm 12 and the pull rod actuating arm 11 have arc-shaped extensions at their outer ends.

[0028] Preferably, a limiting protrusion 23 is provided on the circumference of the outer end face of the moving core 2. The limiting protrusion 23 matches the fan-shaped groove provided on the lock body shell and is used for the assembly and limiting of the moving core 2 and the lock body shell.

[0029] The electronic lock of this utility model uses a reversible clutch, such as Figure 6 Installed inside the lock housing and cooperating with other internal components of the lock body, the upper part of the arc-shaped extension of the latching arm 12 corresponds to the upper end of the latching plate 8, serving as the pulling point of the latching plate 8; the lower part of the arc-shaped extension of the latching arm 12 corresponds to the pull rod 9, serving as the pushing point of the pull rod 9; the arc-shaped extension of the pull rod 11 corresponds to the lower part of the pull rod 9, serving as the pulling point of the pull rod 9; the moving pin 5 corresponds to the position of the clutch bearing 102; by rotating the handle installed on the countersunk square groove 21 of the moving core 2, and by the action of the limiting protrusion 14 inside the housing 1, the moving core 2 causes the handle to drive the housing 1 to rotate within a limited angle range; the latching arm 12 and the pull rod 11 on the housing 1 achieve the opening and closing of the lock through the linkage of the latching plate 8 and the pull rod 9 with the large sliding plate 101 of the main lock tongue 10.

[0030] When in use, the installation positions of the moving core 2 and the fixed core 3 can be interchanged according to the opening and closing direction of the door. This allows the lock body handle to rotate in different directions by changing the positions of the moving core 2 and the fixed core 3 without disassembling the housing 1, and also to cooperate with the reversible lock body latch to meet the needs of different door opening directions.

[0031] The parts of this utility model not described in detail are existing technologies.

[0032] The embodiments selected herein for the purpose of disclosing the inventive objectives of this utility model are currently considered appropriate; however, it should be understood that this utility model is intended to include all variations and modifications of the embodiments that fall within the scope of this concept and utility model.

Claims

1. A reversible clutch for an electronic lock, characterized in that: Includes housing, moving core, fixed core, pin sleeve, moving pin, and tower spring; The housing has a ring-shaped structure at its center. The outer wall of the housing is provided with a lever actuating arm and a plate actuating arm for the clutch to engage with the lock body lever and plate. A boss is provided at the top of the outer wall of the housing, with a mounting hole extending through to the inner wall of the housing. A limiting protrusion is provided on the inner wall of the housing opposite the mounting hole. Stepped portions are provided on the inner walls at both ends of the housing, with limiting grooves symmetrically arranged on the stepped portions in a direction perpendicular to the mounting hole and oriented towards the center of the housing. Arc-shaped support platforms protruding from the end faces are also symmetrically arranged on the annular surfaces at both ends of the housing. The moving core and the fixed core are respectively located at both ends of the housing. Both the moving core and the fixed core are variable cross-section cylindrical structures that match the inner hole of the housing. The center of the outer end face of both the moving core and the fixed core is provided with a countersunk square groove that matches the square rod of the lock body handle. The inner end of the moving core is provided with an arc-shaped rotating block that matches the inner hole of the housing. The chord surface of the arc-shaped rotating block matches the limiting protrusion on the inner wall of the housing. The inner end face of the fixed core is provided with a limiting block that matches the upper limit groove of the step portion at the end of the housing. The pin sleeve is installed in the mounting hole of the housing boss, a retaining ring is provided on the front end of the moving pin, and a tower spring is provided on the rear end of the moving pin. The front end of the moving pin extends out of the pin sleeve and the housing.

2. The reversible clutch for an electronic lock according to claim 1, characterized in that: The card plate actuating arm is flush with the front and rear end faces of the housing, and the pull rod actuating arm is located on the side near the rear end face of the housing. Both the card plate actuating arm and the pull rod actuating arm have arc-shaped extensions at their outer ends.

3. The reversible clutch for an electronic lock according to claim 1, characterized in that: The outer end face of the moving core is provided with a limiting protrusion, which matches the fan-shaped groove provided on the lock body shell for assembly and limiting of the moving core and the lock body shell.

4. The reversible clutch for an electronic lock according to claim 1, characterized in that: The rear annular surfaces of the outer end faces of the moving core and the fixed core are located on the arc-shaped support platform on the end face of the housing. The center of the countersunk square groove of the moving core is provided with a threaded hole that penetrates the moving core, and the center of the countersunk square groove of the fixed core is provided with a through hole that penetrates the fixed core. The screw passes through the through hole of the fixed core and is set in the threaded hole in the center of the moving core to install the moving core and the fixed core on both ends of the housing.

5. The reversible clutch for an electronic lock according to claim 1, characterized in that: The front end of the moving pin has a hemispherical structure.

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