Lock body double-fluted-disc assembly and lock body

Abstract

The invention relates to the technical field of intelligent locks, and discloses a lock body double-fluted-disc assembly and a lock body, the lock body double-fluted-disc assembly comprises a fluted-disc seat and a fluted disc, the fluted-disc seat is bent to form a first edge and a second edge, the first edge and the second edge define a mounting groove with an opening facing one side, the first edge is provided with a fluted-disc-seat stroke part, and the fluted disc is arranged on the fluted-disc-seat stroke part; a fluted disc seat limiting flange is arranged at one end, far away from the fluted disc seat stroke part, of the second edge; and the fluted disc is mounted in the mounting groove. The fluted disc seat limiting flange in the structure provides mechanical backstop, so that the consistency of a stroke end point is ensured. Due to the fact that the fluted disc always moves in the installation groove, the axial position of the fluted disc is restrained by the installation groove, and transmission errors and shaking caused by axial gaps can be reduced. The fluted disc seat is formed through bending, the fluted disc seat stroke part and the fluted disc seat limiting flange are integrated, a closed transmission unit is formed after the fluted disc seat and the fluted disc are assembled, the overall structure is simple, the occupied space is small, and arrangement in various lock bodies is facilitated.

Description

Technical Field

[0001] This invention relates to the field of smart lock technology, specifically to a lock body double-tooth disc assembly and a lock body. Background Technology

[0002] Currently, many locks on the market use a gear-disc structure to drive the bolt for locking and unlocking. Compared to a dial-type structure, this method offers continuous working stroke, one-step operation, and significantly reduced effort, resulting in a better user experience.

[0003] However, regardless of whether it is a single gear or a double gear disc structure, there are common problems such as large axial movement or axial swing, and poor positioning accuracy at both ends of the transmission stroke. Summary of the Invention

[0004] In view of this, the present invention provides a lock body double-tooth disc assembly and lock body to solve the problems of large axial movement or axial swing amplitude and poor positioning accuracy at both ends of the transmission stroke, regardless of whether it is a single gear or double-tooth disc structure.

[0005] In a first aspect, the present invention provides a lock body double-tooth disc assembly, comprising:

[0006] The toothed disc seat is bent to form a first edge and a second edge. A mounting groove is formed between the first edge and the second edge. A toothed disc seat travel portion is provided on the first edge. A toothed disc seat limiting flange is provided at the end of the second edge away from the toothed disc seat travel portion. A toothed disc, which is installed in the mounting slot.

[0007] Beneficial effects: During operation, an external transmission mechanism drives the gear plate seat's travel section, causing the entire gear plate seat to rotate clockwise. Another external transmission mechanism drives the gear plate to rotate counter-clockwise within the mounting slot. When the gear plate seat reaches the preset position, the gear plate seat's limiting flange abuts against the preset gear plate limiting component within the lock body, restricting further rotation of the gear plate. The gear plate seat's limiting flange provides a mechanical stop, ensuring consistency at the end of the travel.

[0008] Since the gear disc always moves within the mounting groove, its axial position is constrained by the mounting groove, which reduces transmission errors and wobbling caused by axial clearance. The gear disc seat is formed by bending, integrating the gear disc seat travel section and the gear disc seat limiting flange into one unit. After assembly with the gear disc, it forms a closed transmission unit. The overall structure is simple, occupies little space, and is easy to arrange in various lock bodies.

[0009] In one optional embodiment, the lock body double-tooth disk assembly further includes a toothed disk bushing; Both the first edge and the second edge are provided with a central through hole for the toothed disc seat, and the two central through holes for the toothed disc seat are coaxially arranged. The toothed disc is provided with a central hole corresponding to the central through hole of the toothed disc seat; The gear disc bushing is adapted to pass through the central through hole of the gear disc seat and the central hole of the gear disc to mount the gear disc seat and the gear disc on the lock housing.

[0010] In one optional embodiment, the toothed disc seat limiting flange is provided with an arc groove, which can abut against the toothed disc limiting assembly to limit the toothed disc seat.

[0011] In one optional embodiment, the line connecting the center of the arc groove and the center of the through hole in the center of the toothed disc seat forms an angle α with the line connecting the end point of the arc groove and the center of the through hole in the center of the toothed disc seat. The included angle α ranges from 4.5° to 7°.

[0012] Beneficial effects: When the included angle α is controlled within the range of 4.5° to 7°, a combined force of normal force and tangential friction force is generated at the contact point near the end of the stroke. The direction of the torque formed by this combined force on the rotation axis of the gear plate seat is beneficial for buffering the rotational motion. This allows the limiting mechanism to effectively brake during rapid operation without hindering the rapid initiation of reverse action, thereby realizing the functions of automatic springback of the gear plate seat and bidirectional rapid operation.

[0013] In one alternative embodiment, the lock body double-tooth disc assembly further includes a travel pin; The toothed disc seat has a travel pin hole on its travel section, and the travel pin is inserted into the travel pin hole of the toothed disc seat.

[0014] In one alternative embodiment, the lock body double-tooth disc assembly further includes a travel pin sleeve adapted to be fitted onto the travel pin.

[0015] Beneficial effects: The stroke pin rotates together with the gear plate seat, and its movement trajectory is an arc of fixed radius centered on the rotation center of the gear plate seat. The stroke pin sleeve is an independent sliding bearing sleeve, fitted onto the large-diameter end or body of the stroke pin. The stroke pin sleeve can absorb some of the impact and vibration, preventing deformation of the stroke pin.

[0016] In one alternative embodiment, the end of the first edge away from the travel portion of the toothed disc seat is provided with a toothed disc seat sector tooth.

[0017] In one optional embodiment, the toothed disc is provided with: a toothed disc fan-shaped tooth portion and a toothed disc actuating beak, the toothed disc fan-shaped tooth portion and the toothed disc actuating beak being arranged at intervals.

[0018] Beneficial effects: With the above configuration, one gear plate seat is driven by two drive sources, avoiding the situation where one drive source cannot drive the gear plate seat to rotate, thereby improving the stability and reliability of the lock and reducing the failure rate of the lock. The gear plate actuating beak provides a direct drive method, ensuring the immediacy and reliability of the action.

[0019] In one optional embodiment, the lock body double-tooth disk assembly further includes a tooth disk return torsion spring, which is sleeved on the tooth disk bushing. A toothed disc seat torsion spring hole is provided through the first edge, and a toothed disc torsion spring hole is provided through the toothed disc corresponding to the toothed disc seat torsion spring hole. The end of the toothed disc reset torsion spring is adapted to be arranged in the toothed disc seat torsion spring hole and the toothed disc torsion spring hole.

[0020] Beneficial effects: By directly integrating the toothed disc return torsion spring onto the component's rotating shaft, it is ensured that the toothed disc seat and toothed disc can automatically and accurately return to the preset initial position after each action, improving the convenience and automation of lock operation.

[0021] Secondly, the present invention also provides a lock body, including the above-described lock body double-tooth disc assembly. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is an exploded isometric view of the lock body double-tooth disc assembly in an embodiment of the present invention; Figure 2 This is a front axonometric view of the lock body double-tooth disk assembly in an embodiment of the present invention; Figure 3 This is a rear isometric view of the lock body double-tooth disk assembly in an embodiment of the present invention; Figure 4 This is a front axonometric view of the toothed disc seat of the lock body double toothed disc assembly in an embodiment of the present invention; Figure 5 This is an isometric view of the back of the toothed disc seat of the lock body double toothed disc assembly in an embodiment of the present invention; Figure 6 This is an isometric view of the toothed disc of the present invention; Figure 7 This is a schematic diagram of the force angle of the limiting convex beak arc groove of the toothed disc seat on the front and back of the toothed disc seat in the lock body double toothed disc assembly of the present invention. Explanation of reference numerals in the attached figures: 1. Gear plate seat; 11. First edge; 111. Gear plate seat sector tooth section; 112. Gear plate seat torsion spring hole; 12. Second edge; 13. Mounting groove; 14. Gear plate seat travel section; 141. Travel pin hole; 15. Gear plate seat limiting flange; 151. Arc groove; 16. Gear plate seat center through hole; 2. Gear disc; 21. Center hole of gear disc; 22. Sector teeth of gear disc; 23. Actuating beak of gear disc; 24. Torsion spring hole of gear disc; 3. Gear disc bushing; 4. Gear plate limiting assembly; 5. Travel expense; 6. Travel pin sleeve; 7. Gear disc return torsion spring. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Currently, many locks on the market use a gear-disc structure to drive the bolt for locking and unlocking. Compared to a dial-type structure, this method offers continuous working stroke, one-step operation, and significantly reduced effort, resulting in a better user experience.

[0026] However, regardless of whether it is a single gear or a double gear disc structure, there are common problems such as large axial movement or axial swing, and poor positioning accuracy at both ends of the transmission stroke.

[0027] To solve the above technical problems, the following will be combined with... Figures 1 to 7 The following describes embodiments of the present invention.

[0028] According to an embodiment of the present invention, in one aspect, a lock body double-tooth disc assembly is provided, including a tooth disc seat 1 and a tooth disc 2.

[0029] like Figure 1 and Figure 2As shown, the gear plate holder 1 is integrally formed by bending to form a "[" shaped groove structure. The gear plate holder 1 includes a first edge 11 and a second edge 12, with the first edge 11 located below and the second edge 12 located above, and the two are horizontally positioned relative to each other, together forming a mounting groove 13. This mounting groove 13 is used to accommodate the gear plate 2, and its groove width matches the thickness of the gear plate 2 to prevent the gear plate 2 from moving vertically axially within the mounting groove 13. A gear plate holder travel portion 14 is provided on the first edge 11, which is used to cooperate with an external transmission mechanism to realize the rotation of the gear plate holder 1. At the end of the second edge 12 away from the gear plate holder travel portion 14, an integrally formed gear plate holder limiting flange 15 is provided. The gear plate 2 has a fan-shaped structure and is installed in the mounting groove 13 of the gear plate holder 1. The gear plate 2 is connected to another external transmission mechanism.

[0030] During the work process, such as Figure 1 At the angle shown, an external transmission mechanism drives the gear plate seat travel section 14, causing the entire gear plate seat 1 to rotate clockwise. Another external transmission mechanism drives the gear plate 2 to rotate counter-clockwise within the mounting groove 13. When the gear plate seat 1 rotates to a preset position, the gear plate seat limiting flange 15 abuts against the preset gear plate limiting component 4 within the lock body, restricting further rotation of the gear plate 2. The gear plate seat limiting flange 15 provides a mechanical stop, ensuring consistency at the end of the travel.

[0031] Since the gear disc 2 always moves within the mounting groove 13, its axial position is constrained by the mounting groove 13, which can reduce transmission errors and shaking caused by axial clearance. The gear disc seat 1 is formed by bending, integrating the gear disc seat stroke part 14 and the gear disc seat limiting flange 15 into one piece. After assembly with the gear disc 2, it forms a closed transmission unit. The overall structure is simple, occupies little space, and is easy to arrange in various lock bodies.

[0032] In one embodiment, such as Figure 1 and Figure 2 As shown, the lock body double-tooth disc assembly also includes a toothed disc bushing 3. Both the first edge 11 and the second edge 12 have coaxially arranged toothed disc seat central through holes 16. These two toothed disc seat central through holes 16 pass through the first edge 11 and the second edge 12, respectively. At the center of its fan-shaped structure, the toothed disc 2 has a toothed disc central hole 21 corresponding to the axis of the toothed disc seat central through hole 16. The toothed disc bushing 3 passes sequentially through the toothed disc seat central through hole 16 of the second edge 12, the toothed disc central hole 21 of the toothed disc 2, and the toothed disc seat central through hole 16 of the first edge 11. The bottom end of the toothed disc bushing 3 extends out from the toothed disc seat 1, thereby mounting and positioning the entire toothed disc seat 1 and the toothed disc 2 on the lock housing. Both the toothed disc seat 1 and the toothed disc 2 are rotatably connected to the toothed disc bushing 3. In the assembled state, the gear bushing 3 serves as the central axis. When an external driving force is applied to the gear seat 1 or the gear 2, the gear seat 1 and the gear 2 rotate around the axis of the gear bushing 3.

[0033] In one embodiment, such as Figures 1 to 5 As shown, the toothed disc seat limiting flange 15 has an arcuate groove 151, the concave surface of which faces outwards and towards an independent toothed disc limiting component 4 inside the lock body. Figure 7 As shown, the first line A is defined as connecting the center of the arc groove 151 to the center of the through hole 16 in the center of the gear seat. The second line B is defined as connecting the end point of the arc groove 151 (i.e., the theoretical termination point of the limiting force or the boundary point of the arc groove 151) to the center of the through hole 16 in the center of the gear seat. The direction of the limiting force is the direction of arrow F in the figure. The central angle between the first and second lines constitutes the included angle α. The numerical range of the included angle α is limited to between 4.5° and 7°.

[0034] When the included angle α is controlled within the range of 4.5° to 7°, a combined force of normal force and tangential friction force is generated at the contact point near the end of the stroke. The direction of the torque formed by this combined force on the rotation axis of the gear plate seat 1 is beneficial for buffering the rotational motion. This allows the limiting mechanism to effectively brake during rapid operation without hindering the rapid initiation of reverse action, thereby realizing the functions of automatic springback and bidirectional rapid operation of the gear plate seat 1.

[0035] In one embodiment, such as Figures 1 to 3 As shown, the lock body double-tooth disc assembly also includes a travel pin 5 and a travel pin sleeve 6. A travel pin hole 141 of the toothed disc seat 1 is machined on the travel portion 14 of the toothed disc seat 1. The travel pin 5 is a stepped pin, and its small-diameter end is installed in the travel pin hole 141 of the toothed disc seat 1.

[0036] After installation, the large-diameter end of the stroke pin 5 protrudes below the gear plate seat 1, serving as the power output point for connection with the external transmission mechanism. The stroke pin 5 rotates together with the gear plate seat 1, and its trajectory is an arc of fixed radius centered on the rotation center of the gear plate seat 1. The stroke pin sleeve 6 is an independent sliding bearing sleeve, fitted onto the large-diameter end or the pin body of the stroke pin 5. The stroke pin sleeve 6 can absorb some of the impact and vibration, preventing deformation of the stroke pin 5.

[0037] In one embodiment, such as Figure 1 , Figures 3 to 5 As shown, the first edge 11, away from the travel portion 14 of the gear plate seat, has a gear plate seat sector tooth 111, the center of which is concentric with the rotation center of the gear plate seat 1. The gear plate seat sector tooth 111 meshes with the second external transmission mechanism. The gear plate sector tooth 22 is provided on the outer edge of the gear plate 2 and meshes with the third external transmission mechanism in the lock body. The gear plate actuating beak 23 is a chamfered structure on the side of the gear plate 2 body. When the gear plate 2 rotates to a specific angle, it can directly contact and actuate the latch assembly in the lock body.

[0038] During the rotation of the drive gear seat 1, not only is the stroke pin 5 driven individually, but a second external transmission mechanism also engages with the sector teeth 111 of the gear seat, simultaneously driving the entire gear seat 1 to rotate clockwise around its central axis. A third external transmission mechanism drives the sector teeth on the gear disc 2, causing the gear disc 2 to rotate counterclockwise. During the rotation of the gear disc 2, the spaced-apart gear disc actuating protrusions 23 move along their trajectory. When the gear disc reaches a preset angle, the actuating protrusions 23 push the inclined tongue assembly to move.

[0039] With the above configuration, one gear plate seat 1 is driven by two drive sources, avoiding the situation where one drive source cannot drive the gear plate seat 1 to rotate, thereby improving the stability and reliability of the lock and reducing the failure rate of the lock. The gear plate actuating beak 23 provides a direct drive method, ensuring the immediacy and reliability of the action.

[0040] In one embodiment, such as Figure 1 , Figures 4 to 6 As shown, the lock body double-tooth disc assembly also includes a toothed disc return torsion spring 7, with the central spiral ring portion directly sleeved on the toothed disc bushing 3.

[0041] A torsion spring hole 112 is formed through the first edge 11. On the gear 2, a torsion spring hole 24 is also formed through the corresponding position of the torsion spring hole 112. In the initial assembly state of the assembly, these two holes are usually aligned or nearly aligned vertically. The gear return torsion spring 7 has two protruding torsion arms. The end of one torsion arm is inserted into and fixed in the torsion spring hole 112 of the gear 1, keeping it relatively fixed to the gear 1. The end of the other torsion arm is inserted into and acts in the torsion spring hole 24 of the gear 2, connecting it to the gear 2.

[0042] When the components are assembled, the toothed disc return torsion spring 7 is pre-torsed by a certain angle. When the external drive device drives the toothed disc holder 1 and the toothed disc 2 to rotate, relative rotation occurs between the toothed disc 2 and the toothed disc holder 1, further torturing the toothed disc return torsion spring 7. When the external driving force is removed, the toothed disc return torsion spring 7 returns to its original position, acting directly on the toothed disc holder 1 and the toothed disc 2 through the torque arm, driving the toothed disc 2 and the toothed disc holder 1 to return to their original positions, preparing for the next operation.

[0043] By directly integrating the toothed disc return torsion spring 7 onto the component's rotating shaft, it is ensured that the toothed disc seat 1 and the toothed disc 2 can automatically and accurately return to the preset initial position after each action, thus improving the convenience and automation of lock operation.

[0044] According to an embodiment of the present invention, in another aspect, a lock body is also provided, including the above-described lock body double-tooth disc assembly. It possesses all of its beneficial effects.

[0045] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and all such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A lock body double-tooth disc assembly, characterized in that, include: The toothed disc seat (1) is bent to form a first edge (11) and a second edge (12). There is a mounting groove (13) between the first edge (11) and the second edge (12). A toothed disc seat travel portion (14) is provided on the first edge (11). A toothed disc seat limiting flange (15) is provided at the end of the second edge (12) away from the toothed disc seat travel portion (14). Gear disc (2), which is installed in the mounting slot (13).

2. The lock body double-tooth disc assembly according to claim 1, characterized in that, The lock body double toothed disk assembly also includes a toothed disk bushing (3). Both the first edge (11) and the second edge (12) are provided with a central through hole (16) for the toothed disc seat, and the two central through holes (16) for the toothed disc seat are coaxially arranged; The toothed disc (2) is provided with a toothed disc center hole (21) corresponding to the toothed disc seat center through hole (16). The toothed disc bushing (3) is adapted to pass through the central through hole (16) of the toothed disc seat and the central hole (21) of the toothed disc to mount the toothed disc seat (1) and the toothed disc (2) on the lock housing.

3. The lock body double-tooth disc assembly according to claim 2, characterized in that, The toothed disc seat limiting flange (15) is provided with an arc groove (151), which can abut against the toothed disc limiting assembly (4) to limit the toothed disc seat (1).

4. The lock body double-tooth disc assembly according to claim 3, characterized in that, The line connecting the center of the arc groove (151) and the center of the through hole (16) in the center of the toothed disc seat forms an angle α with the line connecting the end point of the arc groove (151) and the center of the through hole (16) in the center of the toothed disc seat. The included angle α ranges from 4.5° to 7°.

5. The lock body double-tooth disc assembly according to claim 3, characterized in that, The lock body double toothed disc assembly also includes a stroke pin (5); The toothed disc seat stroke section (14) is provided with a toothed disc seat (1) stroke pin hole (141), and the stroke pin (5) is inserted into the toothed disc seat (1) stroke pin hole (141).

6. The lock body double-tooth disc assembly according to claim 5, characterized in that, The lock body double tooth disc assembly also includes a travel pin sleeve (6), which is adapted to be fitted onto the travel pin (5).

7. The lock body double-tooth disc assembly according to claim 1, characterized in that, The first edge (11) is provided with a toothed disk seat fan-shaped tooth (111) at the end away from the toothed disk seat travel portion (14).

8. The lock body double-tooth disc assembly according to claim 1, characterized in that, The toothed disc (2) is provided with a toothed disc fan-shaped toothed part (22) and a toothed disc actuating beak (23), and the toothed disc fan-shaped toothed part (22) and the toothed disc actuating beak (23) are arranged at intervals.

9. The lock body double-tooth disc assembly according to claim 2, characterized in that, The lock body double toothed disc assembly also includes a toothed disc return torsion spring (7), which is sleeved on the toothed disc bushing (3); A toothed disc seat torsion spring hole (112) is provided through the first edge (11), and a toothed disc torsion spring hole (24) is provided through the toothed disc (2) corresponding to the toothed disc seat torsion spring hole (112). The end of the toothed disc reset torsion spring (7) is adapted to be arranged in the toothed disc seat torsion spring hole (112) and the toothed disc torsion spring hole (24).

10. A lock body, characterized in that, The lock body double-tooth disc assembly includes any one of claims 1-9.

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