Clutch device and intelligent lock

Abstract

The utility model relates to the technical field of intelligent locks, and discloses a clutch device and an intelligent lock, which comprise a clutch seat, a clutch pin and an elastic sleeve. A square rod shaft is arranged in the clutch base, and the clutch base is provided with a pin hole corresponding to the side face of the square rod shaft. The clutch pin is inserted into the pin hole and can slide between a first position and a second position in the axial direction of the clutch pin. When the clutch pin is in the first position state, the first end of the clutch pin is separated from the square rod shaft; when the clutch pin is in the second position state, the first end of the clutch pin is matched with the square rod shaft; the elastic sleeve is arranged on the periphery of the clutch pin in a sleeving mode and located between the second end of the clutch pin and the outer wall of the clutch base, and the elastic sleeve acts on the clutch pin to enable the clutch pin to have the trend of moving from the second position to the first position. A closed cavity is formed between the inner wall of the elastic sleeve and the outer wall of the clutch pin, and fluid is arranged in the cavity. The clutch pin can be prevented from being separated from the clutch during knocking vibration.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent locks, in particular to a clutch device and an intelligent lock. Background Art

[0002] Different from traditional mechanical locks, intelligent door locks are composite locks with security, convenience and advanced technology. An intelligent lock mainly drives a clutch by a motor to unlock. Therefore, the clutch plays a crucial role in the security of the intelligent lock.

[0003] In the related art, when the clutch release pin is in a free state, the idling of the handle does not trigger the unlocking mechanism. When the release pin is in a pressed state, the release pin moves towards the center of the inner rotating block of the clutch, connecting the inner rotating block and the outer rotating block of the clutch, so that the inner rotating block and the outer rotating block can rotate synchronously, and then the handle is pressed down to unlock. Therefore, in order to ensure that the release pin is in a state of protruding from the clutch when the lock is closed, a spring is generally used to limit the position of the release pin.

[0004] In the prior art, the existing solutions for preventing unlocking by vibration knocking usually increase the spring force. However, due to the short acting time of the force generated by vibration, an initial movement speed with a relatively high speed is instantaneously given to the release pin. Under the action of inertia, even if the force generated by vibration disappears instantaneously, the release pin still continues to move, so that the release pin can quickly enter the clutch, connecting the inner rotating block and the outer rotating block. Therefore, simply increasing the spring force still has huge potential safety hazards. Summary of the Utility Model

[0005] In view of this, the utility model provides a clutch device and an intelligent lock to solve the problem that the release pin is separated from the clutch during knocking and vibration.

[0006] In a first aspect, the utility model provides a clutch device, including a clutch seat, a release pin and an elastic sleeve.

[0007] A square bar shaft is arranged inside the clutch seat, and the clutch seat is provided with a pin hole corresponding to the side surface of the square bar shaft.

[0008] The release pin is inserted into the pin hole, and the release pin can slide axially between a first position and a second position; in the state of the release pin at the first position, the first end of the release pin is separated from the square bar shaft; in the state of the release pin at the second position, the first end of the release pin is matched with the square bar shaft.

[0009] The elastic sleeve is arranged on the outer periphery of the clutch pin and is located between the second end of the clutch pin and the outer wall of the clutch seat. The elastic sleeve acts on the clutch pin to make the clutch pin have a tendency to move from the second position to the first position. A closed cavity is formed between the inner wall of the elastic sleeve and the outer wall of the clutch pin, and a fluid is arranged in the cavity.

[0010] Beneficial effects: By setting an elastic sleeve, it forms a closed cavity with the clutch pin. When knocked and vibrated, the relatively closed cavity can limit the flow of fluid, so that the instantaneous impact force is not continuous, and the sealed cavity and the fluid can form a certain resistance to offset the instantaneous impact force. By setting an elastic sleeve to regulate the movement of the clutch pin and increase the fluid damping, the device significantly reduces the risk of accidental unlocking due to external vibration or impact, providing a higher level of security protection for homes and commercial places. Fluid damping not only slows down the movement speed of the clutch pin, but also reduces direct collision and wear between mechanical parts, thereby extending the service life of the clutch device and even the entire smart lock. At the same time, users will not encounter unlocking problems caused by misoperation or external interference during normal use.

[0011] In an optional embodiment, the outer wall of the elastic sleeve is provided with a plurality of outer grooves along its axial direction; and the inner wall of the elastic sleeve is provided with a plurality of inner grooves along its axial direction.

[0012] Beneficial effects: The design of inner and outer grooves enables the elastic sleeve to better adapt to the shape changes of the clutch pin in different states, ensuring a stable damping effect under various conditions of use. The staggered inner and outer grooves not only optimize the flow path of the fluid, making the damping effect more efficient and reducing unnecessary energy loss, but also makes the elastic sleeve's telescopic action smoother.

[0013] In an optional embodiment, the plurality of inner grooves and the plurality of outer grooves are staggered along the axial direction of the elastic sleeve.

[0014] Beneficial effects: The elastic member itself has shockproof properties, and the corrugated shape formed by the staggered arrangement of the inner and outer grooves can achieve a spring-like effect. The staggered design of the inner and outer grooves enhances the structural rigidity of the elastic sleeve, making it less likely to deform or fail when under pressure, thereby ensuring the stability and durability of the damping effect. In addition, the complex flow path helps to reduce the noise generated when the fluid flows in the cavity, providing a quieter use environment.

[0015] In an optional embodiment, the outer groove and the inner groove are configured as an annular structure.

[0016] Beneficial effects: The inner groove and outer groove of the annular structure help to enhance the sealing performance between the elastic sleeve, the clutch pin and the clutch seat, prevent fluid leakage, ensure the long-term effectiveness of the damping effect, and at the same time make the telescopic movement of the elastic sleeve a linear telescopic movement, ensuring the stability of the elastic sleeve during the telescopic process.

[0017] In an alternative embodiment, a limiting portion is provided at the second end of the clutch pin, a clamping groove is formed in the inner wall of the first end of the elastic sleeve, the clamping groove is clamped with the limiting portion, the second end of the elastic sleeve abuts against the outer wall of the clutch seat, and the limiting portion is provided as a limiting protrusion adapted to the clamping groove.

[0018] Beneficial effects: The cooperation between the clamping groove and the limiting portion makes the installation process of the clutch pin simpler and faster, reducing the installation difficulty and cost. At the same time, the stable clamping method ensures that the clutch pin will not loosen or fall off during long-term use, improving the reliability of the entire clutch device.

[0019] In an alternative embodiment, the limiting portion is provided as an annular structure, and the clamping groove is provided as an annular structure adapted to the limiting portion.

[0020] Beneficial effects: The annular limiting portion and the clamping groove provide a larger contact area and a stronger locking force, making the connection between the clutch pin and the elastic sleeve more firm and reliable, and also helping to reduce processing errors and assembly gaps, improving the manufacturing precision and service performance of the clutch device.

[0021] In an alternative embodiment, the radius of the elastic sleeve gradually decreases along the direction of the limiting portion towards the clutch seat.

[0022] Beneficial effects: The gradually decreasing radius enables the elastic sleeve to distribute stress more evenly and produce a more stable damping effect when subjected to pressure. In situations where rapid response is required (such as emergency unlocking), the gradually decreasing radius design helps to reduce the rebound time of the elastic sleeve and improve the unlocking efficiency.

[0023] In an alternative embodiment, the elastic sleeve is provided as a rubber sleeve, a silicone sleeve or a polyurethane sleeve.

[0024] Beneficial effects: Elastic sleeves made of different materials have different performance characteristics such as temperature resistance, humidity resistance, and corrosion resistance, and can be flexibly selected according to the usage environment of the smart lock.

[0025] In an alternative embodiment, the fluid is provided as a gas or a liquid.

[0026] Advantages: Gas or liquid can be selected as the damping medium according to specific requirements, so that the damping effect and response speed can be flexibly adjusted. At the same time, by adjusting parameters such as the type and viscosity of the fluid, precise control and customized design of the damping effect can be achieved.

[0027] In a second aspect, the present utility model further provides an intelligent lock, including the clutch device described above.

[0028] Advantages: Since the intelligent lock includes the clutch device, it has the same effects as the clutch device, which will not be elaborated here. Description of the Drawings

[0029] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0030] Figure 1 Structural schematic diagram of a clutch device according to an embodiment of the present utility model;

[0031] Figure 2 Structural schematic diagram of the clutch pin in an embodiment of the present utility model;

[0032] Figure 3 Structural schematic diagram of the elastic sleeve in an embodiment of the present utility model.

[0033] Explanation of the reference numerals in the drawings:

[0034] 1. Clutch seat; 2. Square bar shaft; 3. Clutch pin; 4. Limiting part; 5. Elastic sleeve; 6. Outer groove; 7. Inner groove; 8. Card slot. Specific Embodiments

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present utility model.

[0036] The following will describe the embodiments of the present utility model in conjunction with Figures 1 to 3 , describing the embodiments of the present utility model.

[0037] According to an embodiment of the present utility model, on the one hand, a clutch device is provided, which includes a clutch seat 1, a clutch pin 3, and an elastic sleeve 5.

[0038] A square bar shaft 2 is provided inside the clutch seat 1. In an intelligent lock, the square bar shaft 2 is generally used to control operations such as unlocking and anti-locking, and is linked with the lock body. Since the square bar shaft 2 is a prior art, no further description will be given here. The clutch seat 1 is provided with a pin hole corresponding to the side surface of the square bar shaft 2. The clutch pin 3 is inserted into the pin hole, and the clutch pin 3 can slide axially between a first position and a second position; in the state of the first position of the clutch pin 3, the first end of the clutch pin 3 is separated from the square bar shaft 2; in the state of the second position of the clutch pin 3, the first end of the clutch pin 3 is engaged with the square bar shaft 2. The elastic sleeve 5 is sleeved on the outer periphery of the clutch pin 3 and is located between the second end of the clutch pin 3 and the outer wall of the clutch seat 1. The elastic sleeve 5 acts on the clutch pin 3 to make the clutch pin 3 have a tendency to move from the second position to the first position; a sealed cavity is formed between the inner wall of the elastic sleeve 5 and the outer wall of the clutch pin 3, and a fluid is provided in the cavity. The elastic sleeve 5 completely covers the clutch pin 3. One end of the elastic sleeve 5 is always in contact with the outer wall of the clutch seat 1, and the other end is connected to the clutch pin 3, so that when the clutch pin 3 moves, the elastic sleeve 5 can perform synchronous telescopic actions.

[0039] In this embodiment, by providing the elastic sleeve 5, a sealed cavity is formed with the clutch pin 3. When struck or vibrated, the relatively sealed cavity can restrict the flow of the fluid, making the instantaneous impact force non-persistent. And the sealed cavity and the fluid can form a certain resistance to offset the instantaneous impact force. By setting the elastic sleeve 5 to regulate the movement of the clutch pin 3 and increase the fluid damping, the device significantly reduces the risk of accidental unlocking caused by external vibration or impact, providing a higher level of security protection for homes and commercial places. The fluid damping not only slows down the movement speed of the clutch pin 3, but also reduces the direct collision and wear between mechanical components, thereby extending the service life of the clutch device and even the entire intelligent lock. At the same time, it ensures that users will not encounter unlocking problems due to misoperation or external interference during normal use.

[0040] In some embodiments, a plurality of outer grooves 6 are axially provided on the outer wall of the elastic sleeve 5; a plurality of inner grooves 7 are axially provided on the inner wall of the elastic sleeve 5.

[0041] Optionally, the outer grooves 6 and the inner grooves 7 can be provided on the elastic sleeve 5 simultaneously, or can be provided separately.

[0042] Optionally, the plurality of inner grooves 7 or the plurality of outer grooves 6 can be equidistantly arranged.

[0043] Optionally, the wall thickness of the elastic sleeve 5 can be set to A, and 0.1 mm ≤ A ≤ 0.3 mm.

[0044] In this embodiment, the design of the inner groove 7 and the outer groove 6 enables the elastic sleeve 5 to better adapt to the shape change of the clutch pin 3 in different states, ensuring that a stable damping effect can be maintained under various use conditions. The staggered inner groove 7 and outer groove 6 structure not only optimizes the flow path of the fluid, making the damping effect more efficient and reducing unnecessary energy loss, but also makes the telescopic action of the elastic sleeve 5 smoother.

[0045] In some embodiments, a plurality of inner grooves 7 and a plurality of outer grooves 6 are staggered along the axial direction of the elastic sleeve 5 .

[0046] Optionally, multiple inner grooves 7 and multiple outer grooves 6 can be arranged in groups on the elastic sleeve 5, and each group can contain an indefinite number of inner grooves 7 or outer grooves 6, for example, each section includes two adjacent inner grooves 7 or two outer grooves 6, and multiple groups are arranged on the elastic member.

[0047] In this embodiment, the elastic member itself has shockproof performance, and the corrugated shape formed by the staggered arrangement of the inner groove 7 and the outer groove 6 can achieve a spring-like effect. The staggered design of the inner groove 7 and the outer groove 6 enhances the structural rigidity of the elastic sleeve 5, making it less likely to deform or fail when subjected to pressure, thereby ensuring the stability and durability of the damping effect. In addition, the complex flow path helps to reduce the noise generated when the fluid flows in the cavity, providing a quieter use environment.

[0048] In some embodiments, the outer groove 6 and the inner groove 7 are configured as an annular structure.

[0049] Optionally, the cross-sectional shape of the outer groove 6 and the inner groove 7 may be one of an arc structure, a rectangular structure and a polygonal structure.

[0050] In this embodiment, the inner groove 7 and the outer groove 6 of the annular structure help to enhance the sealing between the elastic sleeve 5 and the clutch pin 3 and the clutch seat 1, prevent fluid leakage, ensure the long-term effectiveness of the damping effect, and at the same time make the telescopic action of the elastic sleeve 5 linear, thereby ensuring the stability of the elastic sleeve 5 during the telescopic process.

[0051] In some embodiments, a limiting portion 4 is provided at the second end of the clutch pin 3, a slot 8 is provided on the inner wall of the first end of the elastic sleeve 5, the slot 8 is engaged with the limiting portion 4, the second end of the elastic sleeve 5 is abutted against the outer wall of the clutch seat 1, and the limiting portion 4 is configured as a limiting protrusion adapted to the slot 8.

[0052] Optionally, at least one limiting portion 4 may be provided, and a plurality of limiting portions 4 may be provided at intervals along the axial direction of the clutch pin 3 , and the same number of the slots 8 may be adaptively provided.

[0053] Optionally, at least one limiting portion 4 may be provided, and a plurality of limiting portions 4 are arranged at intervals along the axial direction of the clutch pin 3, and the same number of clamping grooves 8 may be adaptively provided.

[0054] In this embodiment, the cooperation between the clamping groove 8 and the limiting portion 4 makes the installation process of the clutch pin 3 simpler and faster, reducing the installation difficulty and cost. At the same time, the stable clamping method ensures that the clutch pin 3 will not loosen or fall off during long-term use, improving the reliability of the entire clutch device.

[0055] In some embodiments, the limiting portion 4 is arranged as an annular structure, and the clamping groove 8 is arranged as an annular structure adapted to the limiting portion 4.

[0056] In this embodiment, the annular limiting portion 4 and the clamping groove 8 provide a larger contact area and stronger locking force, making the connection between the clutch pin 3 and the elastic sleeve 5 more firm and reliable. It also helps to reduce machining errors and assembly gaps, improving the manufacturing precision and service performance of the clutch device.

[0057] In some embodiments, the radius of the elastic sleeve 5 gradually decreases along the limiting portion 4 towards the clutch seat 1.

[0058] Optionally, the elastic sleeve 5 may be arranged as a tower-shaped structure.

[0059] In this embodiment, the gradually decreasing radius enables the elastic sleeve 5 to distribute stress more evenly and produce a more stable damping effect when subjected to pressure. And in situations where quick response is required (such as emergency unlocking), the gradually decreasing radius design helps to reduce the rebound time of the elastic sleeve 5 and improve the unlocking efficiency.

[0060] In some embodiments, the elastic sleeve 5 is arranged as a rubber sleeve or a silicone sleeve or a polyurethane sleeve.

[0061] In this embodiment, elastic sleeves 5 made of different materials have different performance characteristics such as temperature resistance, humidity resistance, and corrosion resistance, and can be flexibly selected according to the usage environment of the smart lock.

[0062] In some embodiments, the fluid is arranged as a gas or a liquid.

[0063] Optionally, the gas may be air.

[0064] Optionally, the liquid may be oil or water.

[0065] In this embodiment, selecting a gas or a liquid as the damping medium according to specific requirements can flexibly adjust the damping effect and response speed. At the same time, by adjusting parameters such as the type and viscosity of the fluid, precise control and customized design of the damping effect can be achieved.

[0066] According to an embodiment of the present utility model, on the other hand, an intelligent lock is further provided, which includes a clutch device.

[0067] Optionally, a driving member is provided inside the intelligent lock, which is adapted to drive the clutch pin 3 of the clutch device to slide along its axial direction.

[0068] Optionally, the driving member can be a motor. When the motor thrust works continuously, it can overcome the elastic force of the elastic member and push the clutch pin 3 upward into the hole of the square rod shaft 2 to achieve the function of disengaging and opening the door.

[0069] In this embodiment, since the intelligent lock includes a clutch device and has the same effect as the clutch device, it will not be elaborated here.

[0070] Although the embodiments of the present utility model 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 present utility model, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A clutch device, characterized in that, Comprising: A clutch seat (1) with a square bar shaft (2) disposed inside, and the clutch seat (1) is provided with pin holes corresponding to the side surface of the square bar shaft (2); A clutch pin (3) inserted into the pin holes, and the clutch pin (3) can slide axially between a first position and a second position; in the state of the clutch pin (3) at the first position, the first end of the clutch pin (3) is disengaged from the square bar shaft (2); in the state of the clutch pin (3) at the second position, the first end of the clutch pin (3) is engaged with the square bar shaft (2); An elastic sleeve (5) sleeved on the outer periphery of the clutch pin (3) and located between the second end of the clutch pin (3) and the outer wall of the clutch seat (1), and the elastic sleeve (5) acts on the clutch pin (3) to make the clutch pin (3) have a tendency to move from the second position to the first position; a sealed cavity is formed between the inner wall of the elastic sleeve (5) and the outer wall of the clutch pin (3), and a fluid is provided in the cavity.

2. The clutch device according to claim 1, wherein: A plurality of outer grooves (6) are axially provided on the outer wall of the elastic sleeve (5); a plurality of inner grooves (7) are axially provided on the inner wall of the elastic sleeve (5).

3. The clutch device according to claim 2, wherein: The plurality of inner grooves (7) and the plurality of outer grooves (6) are axially staggered along the elastic sleeve (5).

4. The clutch device according to claim 2, wherein The outer grooves (6) and the inner grooves (7) are arranged in a ring structure.

5. The clutch device according to claim 1, wherein: A limiting portion (4) is provided at the second end of the clutch pin (3), a clamping groove (8) is formed in the inner wall of the first end of the elastic sleeve (5), the clamping groove (8) is clamped with the limiting portion (4), the second end of the elastic sleeve (5) abuts against the outer wall of the clutch seat (1), and the limiting portion (4) is provided as a limiting protrusion adapted to the clamping groove (8).

6. The clutch device according to claim 5, wherein: The limiting portion (4) is arranged in a ring structure, and the clamping groove (8) is arranged in a ring structure adapted to the limiting portion (4).

7. The clutch device according to claim 5, wherein: The radius of the elastic sleeve (5) gradually decreases from the limiting portion (4) towards the clutch seat (1).

8. The clutch device according to claim 1, wherein: The elastic sleeve (5) is provided as a rubber sleeve or a silica gel sleeve or a polyurethane sleeve.

9. The clutch device according to claim 1, wherein: The fluid is provided as a gas or a liquid.

10. An intelligent lock, characterized in that, Comprising: The clutch device according to any one of claims 1 to 9.

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