Built-in clutch of intelligent lock handle

Abstract

The utility model discloses an intelligent lock handle built-in clutch which comprises a handle main body with two open ends, a clutch assembly and a rotating shaft, the clutch assembly is arranged in the handle main body in a sliding mode, one end of the rotating shaft is connected with the handle main body in a rotating mode through the opening of the handle main body, and the other end of the rotating shaft is connected with the handle main body in a sliding mode. One end of the clutch assembly is connected with the rotating shaft in a clamping manner; the clutch assembly is arranged in the handle, the occupied space of the panel is reduced, the rotating shaft is driven to rotate through the clutch assembly, and the rotating shaft connected with the lock body drives the lock body to complete unlocking; the intelligent lock has two clutch closing mechanisms of the electronic assembly and the mechanical assembly, the use experience of a user is improved under the condition that the space occupied by the clutch for the intelligent lock is saved, and the design limitation is reasonably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lock structures, in particular to a smart lock handle with a built-in clutch. Background Art

[0002] With the development of science and technology, the technology in the field of smart home is also constantly developing and updating. Door locks, as the basic component of smart homes, are the most critical components to protect the safety of people's homes. In smart homes, most door locks use semi-automatic smart locks. When unlocking a semi-automatic smart lock, the user needs to manually press down the handle to retract the lock tongue so that the door can be opened. When locking, the handle needs to be lifted to extend the lock tongue and lock the door.

[0003] In the prior art, the clutch of a semi-automatic smart lock is generally installed on a panel, which causes the overall structure of the semi-automatic smart lock to occupy a lot of space and imposes relatively large restrictions on the product structure. The structure on the overall lock has certain design limitations, and most of the semi-automatic smart locks have complex principles for achieving closure through the clutch. Therefore, there is an urgent need for a semi-automatic smart lock with a simple structure that reduces the panel space occupied by the clutch. It is necessary to strengthen the structural optimization of the clutch and improve the design limitations. Utility Model Content

[0004] In view of the shortcomings of the above-mentioned technology, such as the complex closing structure of the driving clutch, the large space it occupies, and the low design limitations, the utility model provides a smart lock handle with a built-in clutch.

[0005] To achieve the above-mentioned purpose, the utility model provides a smart lock handle with a built-in clutch, characterized in that it includes a handle body with openings at both ends, a clutch assembly and a rotating shaft, the clutch assembly being slidably arranged inside the handle body, one end of the rotating shaft being rotatably connected to the handle body through the opening of the handle body, and one end of the clutch assembly being engaged and connected to the rotating shaft.

[0006] As an improved scheme of the utility model, the clutch assembly includes a limit slider, a drive motor and a positioning column, the surface of the limit slider is provided with a through hole, the drive motor is placed in the through hole, the positioning column is sleeved on the output shaft of the drive motor, a torsion spring is sleeved on the positioning column, the end of the slider away from the rotating shaft is provided with a spring fixing block, the positioning column passes through the spring fixing block, the end of the handle body away from the rotating shaft is sleeved with a spring fixing seat, a second spring is provided in the spring fixing seat, one end of the second spring is fixedly connected to the spring fixing seat, the other end of the second spring is sleeved on the positioning column, a third spring is provided between the spring fixing seat and the handle body, and a sleeve with an opening at one end is provided outside the spring fixing seat, and the end of the sleeve with an opening is engaged and connected with the end of the handle body away from the rotating shaft.

[0007] As an improved solution of the present utility model, at least one slide groove is provided in the handle body, one side of the limit slider is placed in the slide groove, and the limit slider slides in cooperation with the handle body; at least one limit protrusion is provided at one end of the limit slider close to the rotating shaft, and at least one bayonet is provided at one end of the rotating shaft close to the driving motor, and the limit protrusion is snap-connected with the bayonet; the limit slider slides through the slide groove so that the limit protrusion is snap-connected with the bayonet.

[0008] As an improved solution of the present invention, the elastic force of the torsion spring is smaller than the elastic force of the second spring.

[0009] As an improvement to the present utility model, at least one limiting protrusion is provided on the positioning column, and the limiting protrusion is arranged in the spring coil of the torsion spring; the torsion arm at one end of the torsion spring abuts against a wall surface of the spring fixing cavity close to the drive motor, and the torsion arm at the other end abuts against the inner wall of the spring fixing cavity.

[0010] As an improved solution of the present utility model, a stopper for fixing the drive motor is provided in the handle body.

[0011] As an improved solution of the utility model, a fixing hole is provided at one end of the spring fixing seat away from the second spring, and a second through hole is provided at the other end of the sleeve, and the size of the second through hole is larger than the fixing hole.

[0012] As an improved solution of the present utility model, a mounting groove is provided at one end of the rotating shaft away from the handle body.

[0013] The beneficial effects of the utility model are as follows: compared with the prior art, the smart lock handle provided by the utility model has a built-in clutch, comprising a handle body with openings at both ends, a clutch assembly and a rotating shaft, wherein the clutch assembly is slidably arranged inside the handle body, one end of the rotating shaft is rotatably connected to the handle body through the opening of the handle body, and one end of the clutch assembly is engaged and connected to the rotating shaft; the clutch assembly is arranged in the handle to reduce the space occupied by the lock body panel, and the rotating shaft is driven to rotate by the clutch assembly, and the rotating shaft connected to the lock body will drive the lock body to complete unlocking; the utility model has two clutch closing mechanisms, namely, an electronic assembly and a mechanical assembly, which improves the user experience while saving the space occupied by the clutch in the smart lock and reasonably improves the design limitations. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an exploded view of the utility model;

[0015] Figure 2 It is the internal structure diagram of the utility model;

[0016] Figure 3 It is a schematic diagram of the handle body and the spring fixing seat of the utility model;

[0017] Figure 4 This is a schematic diagram of the interior of the handle body of the utility model;

[0018] Figure 5 It is a product schematic diagram of the utility model;

[0019] Figure 6 Schematic diagram of the installation slot of the utility model

[0020] Figure 7 This is a partial enlarged view of the spring fixing block of the utility model.

[0021] The symbols of the main components are explained as follows: 1. Handle body; 100. Slide groove; 101. Block; 2. Clutch assembly; 21. Limit slider; 211. Limit convex block; 22. Drive motor; 221. Output shaft; 23. Positioning column; 231. Limit convex block; 3. Rotating shaft; 31. Bayonet; 32. Mounting groove; 4. Torsion spring; 5. Second spring; 6. Third spring; 7. Spring fixing seat; 8. Sleeve; 9. Protrusion; 10. Fixing hole; 11. Second through hole; 12. Spring fixing block. DETAILED DESCRIPTION

[0022] In order to more clearly illustrate the present invention, the present invention is further described below in conjunction with the accompanying drawings.

[0023] See also Figure 1-Figure 7The utility model is a smart lock handle with a built-in clutch, comprising a handle body 1 with openings at both ends, a clutch assembly 2 and a rotating shaft 3. The clutch assembly 2 is slidably arranged inside the handle body 1, one end of the rotating shaft 3 is rotatably connected to the handle body 1 through the opening of the handle body 1, and one end of the clutch assembly 2 is engaged with the rotating shaft 3; in this embodiment, the handle body 1 is generally cylindrical, and the cylindrical handle makes the internal space more sufficient, and has a larger capacity for installing the clutch assembly 2. One end of the clutch assembly 2 is engaged with the rotating shaft 3, and the rotating shaft 3 is rotated by driving the clutch assembly 2, so that the other end of the rotating shaft 3 connected to the lock body is driven to be unlocked.

[0024] The working principle of the utility model is:

[0025] In terms of electronic control, the principle is that when the user's external identification verification is successful, the output shaft 221 of the drive motor 22 starts to rotate after receiving the start signal, and the torsion spring 4 sleeved on the positioning column 23 rotates and compresses toward the rotating shaft 3. Since a limiting protrusion 231 is provided in the spring coil of the torsion spring 4, the limiting protrusion 231 limits the compression stroke of the torsion spring 4, and the limiting slider 21 is easily pushed by the compression elastic force of the torsion spring 4, so that the limiting slider 21 slides in the axial direction of the rotating shaft 3. When the protrusion on the limiting slider 21 is embedded in the bayonet 31, the rotating shaft 3 and the handle body form an integrated linkage at this time, and the door handle can be turned to complete the unlocking. After the unlocking is completed, the drive motor 22 reaches the locking time set by the program, the drive motor 22 starts to reverse, the torsion spring 4 rebounds, the limiting slider 21 resets, and the protrusion comes out of the bayonet 31. At this time, the door lock is in a locked state; in terms of mechanical control, when the limiting slider 21 is in the initial position, the key is inserted into the fixing hole 10 to push The spring fixing seat 7 is moved. Since the second spring 5 is riveted to the spring fixing seat 7, the second spring 5 is compressed in the direction of the limit slider 21, and the third spring 6 arranged between the spring fixing seat 7 and the handle body is also compressed. The second spring 5 pushes the limit slider 21 and pushes the protrusion into the bayonet hole 31, so that the rotating shaft 3 and the handle body form a linkage. At this time, the handle can be turned to open the door lock, and then the key is pulled out, the second spring 5 rebounds, and the third spring 6 pushes the spring fixing seat 7 back to its original position. The limit slider 21 is returned to its original position by the elastic force of the rebound of the torsion spring 4; after the user presses the handle in advance, the rotating shaft 3 rotates at the same time, and then uses the key to open the door. The second spring 5 is compressed to push the limit slider 21 to slide towards the rotating shaft 3, and the bayonet hole 31 position of the rotating shaft 3 is misaligned with the limiting protrusion 211. At this time, the limit slider 21 cannot be stuck in the bayonet hole 31. After turning the key, the second spring 5 is compressed to protect other transmission parts from being violently damaged. After releasing the handle, the rotating shaft 3 is reset, and the protrusion can slide into the bayonet hole 31 to unlock.

[0026] In another embodiment, all technical features of the above embodiment are included, see Figure 1-3 and Figure 7 The clutch assembly 2 in the handle body 1 includes a limit slider 21, a drive motor 22 and a positioning column 23. The surface of the limit slider 21 is provided with a first through hole for placing the drive motor 22, and the drive motor 22 is placed in the first through hole. The positioning column 23 is sleeved on the output shaft 221 of the drive motor 22, and a torsion spring 4 is sleeved on the positioning column 23. A spring fixing block 12 is provided at one end of the slider away from the rotating shaft 3, and the positioning column 23 passes through the spring fixing block 12; a spring fixing seat 7 is sleeved on one end of the handle body 1 away from the rotating shaft 3, and a second spring 5 is arranged in the spring fixing seat 7, one end of the second spring 5 is fixedly connected to the spring fixing seat 7, and the other end of the second spring 5 is sleeved on the positioning column 23, and a third spring 6 is arranged between the spring fixing seat 7 and the handle body 1, and a sleeve 8 with an opening at one end is provided on the outer sleeve of the spring fixing seat 7, and the sleeve The tube 8 has an open end which is engaged with the end of the handle body 1 away from the rotating shaft 3; through the cooperation of the limit slider 21, the drive motor 22, the positioning column 23 and the torsion spring 4, an electronic component is formed to control the closing of the clutch. When the drive motor 22 receives a start signal, the drive motor 22 starts to rotate, and the torsion spring 4 indirectly sleeved on the output shaft 221 through the positioning column 23 also rotates together. The spring coil of the torsion spring 4 is rotated and compressed. Since the positioning column 23 is provided with a limit protrusion 231 which is sleeved in the spring coil and is used to fix the torsion spring 4, the elastic force generated by the torsion spring 4 will act on the limit protrusion 231, which is equivalent to pushing the limit slider 21 to move, so that the limit protrusion 211 on the limit slider 21 slides into the bayonet 31, so that the rotating shaft 3 and the handle body 1 form an integrated linkage, and then the unlocking can be completed.

[0027] The clutch is closed by forming a mechanical assembly through the cooperation among the limit slider 21, the torsion spring 4, the second spring 5, the third spring 6 and the spring fixing seat 7. The key is inserted into the fixing hole 10 of the spring fixing seat 7. The spring fixing seat 7 is sleeved in the sleeve 8. The sleeve 8 also begins to have an opening. The diameter of the opening is larger than the diameter of the fixing hole 10. The cross section of the fixing hole 10 is exposed in the opening. After the key is inserted, the key will abut against the cross section, thereby pushing the spring fixing seat 7; the second spring 5, one end of which abuts against the limit slider 21 and the other end of which is welded on the spring fixing seat 7, is compressed by the external thrust, generating an axial elastic force, pushing the limit slider 21 to slide toward the rotating shaft 3. At the same time, the third spring 6 installed between the handle body 1 and the spring fixing seat 7 is also compressed. After the limit protrusion 211 is inserted into the bayonet 31 to complete the unlocking, the key is pulled out, the spring fixing seat 7 is not subjected to the external thrust, the second spring 5 returns to the initial state, and the third spring 6 pushes the spring fixing seat 7 back to its original position, thereby completing the clutch closing function of the mechanical assembly.

[0028] In addition, considering that there may be unexpected situations in the unlocking method, for example, the user presses the handle in advance before inserting the key, causing the shaft 3 to be misplaced, when the key is inserted at this time, the limiting protrusion 211 cannot be engaged with the bayonet 31, and the shaft 3 and the handle body 1 cannot form an integrated linkage. However, through the compression of the second spring 5, the second spring 5 absorbs the thrust to ensure that other clutch transmission parts such as the drive motor 22 and the limiting slider 21 will not be damaged. After releasing the handle, the shaft 3 returns to the normal position, and the limiting protrusion 211 can smoothly enter the bayonet 31, thereby completing the unlocking. The above is a protection design under unconventional conditions.

[0029] In another embodiment, all technical features of the above embodiment are included, see Figure 2 and Figure 5 In order to ensure that the limiting slider 21 does not produce deviation and inclination during sliding, two opposite slide grooves 100 are provided in the handle body 1, and the two sides of the limiting slider 21 are placed in the slide grooves 100, and the limiting slider 21 and the handle body 1 are slidably matched; at least one limiting protrusion 211 is provided at one end of the limiting slider 21 close to the rotating shaft 3, and the limiting protrusion 211 is engaged and connected with the bayonet 31; the limiting slider 21 slides through the slide groove 100 so that the limiting protrusion 211 and the bayonet 31 are detachably engaged and connected; in this embodiment, the handle body 1 is provided with two opposite slide grooves 100, and the limiting slider 21 can slide through the cooperation with the slide grooves 100 on both sides, and the rotating shaft 3 and the handle body 1 are formed into an integrated linkage through the engagement connection of the limiting protrusion 211 and the bayonet 31, so that the lock core connected to the other end of the rotating shaft 3 can be rotated.

[0030] In another embodiment, all technical features of the above embodiment are included, see Figure 2 At least one limiting protrusion 231 is provided on the positioning column 23, and the limiting protrusion 231 is arranged in the spring coil of the torsion spring 4; the torsion arm at one end of the torsion spring 4 abuts against a wall surface of the spring fixing cavity close to the drive motor 22, and the torsion arm at the other end abuts against the inner wall of the spring fixing cavity; by setting the limiting protrusion 231, the position of the torsion spring 4 is fixed so that it will not deviate from the positioning column 23, and then the torsion spring 4 is further limited by setting the spring fixing cavity to prevent the torsion spring 4 from falling off during rotation, and when the drive motor 22 is working, the limiting protrusion 231 also serves as a limiting point of the torsion spring 4, and the maximum compression stroke of the torsion spring 4 only reaches the limiting protrusion 231.

[0031] In another embodiment, all technical features of the above embodiment are included, see Figure 4Since the drive motor 22 will generate vibrations when it is started, it may shift back and forth in the axial direction. In order to ensure that the drive motor 22 does not shift, a stopper 101 for fixing the drive motor 22 is provided in the handle body 1. The stopper 101 is arranged at various corners of the drive motor 22 to ensure that the drive motor 22 does not shift to the greatest extent.

[0032] In another embodiment, all technical features of the above embodiment are included, see Figure 5 A fixing hole 10 is provided at one end of the spring fixing seat 7 away from the second spring 5 , and a second through hole 11 is provided at the other end of the sleeve 8 . The size of the second through hole 11 is larger than that of the fixing hole 10 .

[0033] In another embodiment, all technical features of the above embodiment are included, see Figure 6 The end of the rotating shaft 3 away from the handle body 1 is provided with a mounting groove 32 for connecting with the lock core component, and the mounting groove 32 is used to connect with the lock body. When the rotating shaft 3 and the handle body form an integrated linkage, pressing the handle can drive the lock body to unlock.

[0034] The advantages of the utility model are:

[0035] 1) Have electronic components and mechanical components to achieve clutch closure.

[0036] 2) The clutch is built into the handle to reduce the space occupied inside the panel.

[0037] 3) The overall lock layout is more convenient and diversified.

[0038] The above disclosures are only several specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A smart lock handle with a built-in clutch, characterized in that: The invention comprises a handle body with openings at both ends, a clutch assembly and a rotating shaft, wherein the clutch assembly is slidably arranged inside the handle body, one end of the rotating shaft is rotatably connected to the handle body through the opening of the handle body, and one end of the clutch assembly is engaged with the rotating shaft; the clutch assembly comprises a limit slider, a drive motor and a positioning column, a surface of the limit slider is provided with a first through hole for placing the drive motor, the drive motor is placed in the first through hole, the positioning column is sleeved on the output shaft of the drive motor, a torsion spring is sleeved on the positioning column, a spring fixing block is provided at one end of the slider away from the rotating shaft, and the positioning column passes through the spring fixing block; a spring fixing seat is sleeved on one end of the handle body away from the rotating shaft, a second spring is arranged in the spring fixing seat, one end of the second spring is fixedly connected to the spring fixing seat, the other end of the second spring is sleeved on the positioning column, a third spring is arranged between the spring fixing seat and the handle body, a sleeve with an opening at one end is provided on the outer sleeve of the spring fixing seat, and the end of the sleeve with the opening is engaged with the end of the handle body away from the rotating shaft.

2. According to claim 1, a smart lock handle with a built-in clutch is characterized in that: At least one slide groove is provided in the handle body, one side of the limit slider is placed in the slide groove, and the limit slider is slidably matched with the handle body; at least one limit protrusion is provided at one end of the limit slider close to the rotating shaft, and at least one bayonet is provided at one end of the rotating shaft close to the driving motor, and the limit protrusion is snap-fitted and connected with the bayonet; the limit slider slides through the slide groove to enable the limit protrusion to be snap-fitted and connected with the bayonet.

3. The smart lock handle with built-in clutch according to claim 1, characterized in that: The elastic force of the torsion spring is smaller than the elastic force of the second spring.

4. The smart lock handle with built-in clutch according to claim 1, characterized in that: At least one limiting protrusion is provided on the positioning column, and the limiting protrusion is arranged in the spring coil of the torsion spring; the torsion arm at one end of the torsion spring abuts against a wall surface of the spring fixing block close to the drive motor, and the torsion arm at the other end abuts against the inner wall of the spring fixing block.

5. The smart lock handle with built-in clutch according to claim 1, characterized in that: A stopper for fixing the drive motor is arranged inside the handle body.

6. The smart lock handle with built-in clutch according to claim 1, characterized in that: A fixing hole is provided at one end of the spring fixing seat away from the second spring, and a second through hole is provided at the other end of the sleeve. The size of the second through hole is larger than that of the fixing hole.

7. The smart lock handle with built-in clutch according to claim 1, characterized in that: An installation groove is provided at one end of the rotating shaft away from the handle body.

Images