Novel intelligent lock clutch structure
By driving the push rod and the pin together with the motor, the problem of the smart lock being unable to unlock when the handle is tilted is solved, and the effect of normal unlocking can be achieved even when the handle is tilted.
Patent Information
- Application Number
- CN202422570800.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-24
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-10-24
AI Technical Summary
The existing smart lock has the defect that when the handle is tilted, the key cannot be inserted to turn the lock core to unlock normally.
The motor drives the push rod to extend and retract, and the pin overcomes the spring force and is inserted into the positioning slot to fix the clutch head and the handle. Combined with the adjustment spring and the square steel head pin, the key can be unlocked normally even when it is tilted.
When the handle is tilted, the motor control and spring coordination enable the key to be inserted and turned normally, solving the problem of the smart lock being unable to unlock and providing convenience and safety.
Smart Images

Figure CN223423777U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of smart locks, and in particular to a novel smart lock clutch structure. Background Art
[0002] With the progress of the times and the development of science and technology, mechanical door locks are gradually turning to intelligent ones. Smart locks are devices that use advanced technology to control and manage door locks, providing more convenience and security than traditional locks. In the structure of smart locks, the clutch structure is the core component of the smart lock, and structural stability is the most important.
[0003] Existing technology suffers from tilted door handles and handle drooping after prolonged use. Furthermore, the clutch mechanism used in common smart locks can prevent the key from turning the lock cylinder to unlock properly when the handle is tilted. Inventing a new smart lock clutch mechanism to address these issues has become a pressing issue for those skilled in the art. Utility Model Content
[0004] In order to make up for the above shortcomings, the present invention provides a novel smart lock clutch structure, which aims to improve the problem that when facing a skewed handle, the key cannot be inserted to turn the lock cylinder for normal unlocking.
[0005] The utility model is achieved in this way:
[0006] The utility model provides a novel intelligent lock clutch structure, comprising a lock housing and a clutch head and a handle arranged on the lock housing, a motor is installed inside the lock housing, a push rod is installed at the output end of the motor, and a fixing sleeve is fixedly connected to the inner wall of the upper end of the lock housing;
[0007] The clutch head is mounted on the inner wall of the lock housing away from the fixed sleeve, one end of the outer wall of the clutch head is fixedly connected to a pin block, the inner wall of the clutch head close to the pin block is fixedly connected to a pin spring, one end of the pin spring is fixedly connected to a retaining ring, the inner wall of the retaining ring is fixedly connected to a pin that is slidably connected to the inner wall of the pin block, one end of the clutch head is provided with a slot, and the inner wall of the slot is fixedly connected to a reset spring;
[0008] The handle is rotatably connected to the lock shell, and a lock core is installed inside the handle. The handle is fixedly connected to the inner wall below the lock core with a connecting sleeve, and a lock core dial button is installed on the inner wall of the connecting sleeve. The lower end of the lock core dial button is installed with a square steel head pin, and the lower end of the square steel head pin is installed with an adjusting spring. The lower end of the adjusting spring is installed with a square steel head that is plugged into the inner wall of the slot, and the lower end outer wall of the connecting sleeve is fixedly connected to a handle fixing block, and the upper outer wall of the connecting sleeve near the handle fixing block is fixedly connected to a bearing.
[0009] Preferably, one end of the push rod is fixedly connected with the output end of the motor, and the motor drives the push rod to stretch out or retract, and the other end of the push rod abuts against one end of the pin.
[0010] Preferably, the outer wall of the connecting sleeve is rotatably connected with the inner wall of the clutch head, and the outer wall of the connecting sleeve, which is located below the handle fixing block, is provided with a positioning groove, and the inner wall of the positioning groove is slidably connected with the outer wall of the pin.
[0011] By adopting the above technical scheme, when remotely and intelligently unlocking, the push rod at one end of the motor is stretched out, so that the pin overcomes the elastic force of the pin spring, and then the pin is inserted into the positioning groove on one side of the connecting sleeve, so that the clutch head and the handle fixing block and the handle are connected together, when the handle is rotated, the clutch head is rotated together, and the purpose of unlocking is achieved.
[0012] Preferably, the lock core knob is connected with the lock core to convert the left and right rotary motion of the key into the up and down motion of the square steel head pin, and the two end side walls of the adjusting spring are fixedly connected with the square steel head pin and one side of the square steel head respectively.
[0013] Preferably, the outer wall of the square steel head is slidably connected with the inner wall of the connecting sleeve, the inner wall of the square steel head abuts against one end of the reset spring, and the outer wall of the square steel head is rectangular in cross section.
[0014] Preferably, the outer wall of the bearing is fixedly connected with the inner wall of the fixed sleeve, and the connecting sleeve is rotatably connected with the inner wall of the fixed sleeve through the bearing.
[0015] By adopting the above technical scheme, when unlocking with the key, the lock core is rotated to drive the lower lock core knob to rotate, and then the square steel head pin pushes the adjusting spring to move in the connecting sleeve, and then the square steel head is pushed to slide into the insertion slot in the clutch head, so that the clutch head is connected with the connecting sleeve and the handle, and when the handle is rotated, the clutch head is rotated, and the purpose of unlocking is achieved.
[0016] The utility model discloses the beneficial effect is:
[0017] By means of the motor and the push rod, when the key is forgotten or lost, the pin is inserted into the positioning groove on one side of the connecting sleeve through the mobile phone control, the fixing of the clutch head and the handle is completed, and the handle is rotated to complete the unlocking, and the adjusting spring and the square steel head pin are arranged simultaneously, when the handle is inclined, the key can still be inserted into the lock core to rotate, so as to control the lock core knob to drive the square steel head pin below to extrude the adjusting spring on one side to move, and the adjusting spring is rebounded in subsequent rotation of the handle, the square steel head at one end is inserted into the insertion slot and connected with the clutch head, and the purpose of unlocking is achieved, and the defect that the mechanical key cannot be used to unlock when the handle is inclined is solved. BRIEF DESCRIPTION OF DRAWINGS
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.
[0019] Figure 1 This is a schematic diagram of a new type of smart lock clutch structure provided by the embodiment of the utility model;
[0020] Figure 2 This is a schematic diagram of a local area of a new type of smart lock clutch structure provided by an embodiment of the present utility model;
[0021] Figure 3 This is a half-section diagram of a novel smart lock clutch structure provided by an embodiment of the present utility model;
[0022] Figure 4 This is a cross-sectional view of a local area of a new type of smart lock clutch structure in the key unlocking state provided by the embodiment of the utility model;
[0023] Figure 5 This is a cross-sectional view of a skewed local area of a new type of smart lock clutch structure handle provided by an embodiment of the utility model;
[0024] Figure 6 This is a new type of intelligent lock clutch structure provided by the embodiment of the utility model Figure 3 A magnified view of the structure of area A in the middle.
[0025] In the figure: 1. Lock housing; 2. Motor; 3. Push rod; 4. Clutch head; 5. Pin block; 6. Pin spring; 7. Pin; 8. Block ring; 9. Slot; 10. Return spring; 11. Fixing sleeve; 12. Handle; 13. Lock cylinder; 14. Connecting sleeve; 15. Lock cylinder dial button; 16. Square steel head pin; 17. Adjustment spring; 18. Square steel head; 19. Handle fixing block; 20. Positioning slot; 21. Bearing. DETAILED DESCRIPTION
[0026] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0027] Example, see Figures 1-6 A novel intelligent lock clutch structure includes a lock housing 1 and a clutch head 4 and a handle 12 provided on the lock housing 1. A motor 2 is installed inside the lock housing 1, a push rod 3 is installed at the output end of the motor 2, and a fixing sleeve 11 is fixedly connected to the inner wall of the upper end of the lock housing 1;
[0028] The clutch head 4 is mounted on the inner wall of the lock housing 1 away from the fixed sleeve 11. A pin stopper 5 is fixedly connected to the outer wall of one end of the clutch head 4. A pin spring 6 is fixedly connected to the inner wall of the clutch head 4 near the pin stopper 5. One end of the pin spring 6 is fixedly connected to a retaining ring 8. The inner wall of the retaining ring 8 is fixedly connected to a pin 7 that is slidably connected to the inner wall of the pin stopper 5. A slot 9 is formed at one end of the clutch head 4. A return spring 10 is fixedly connected to the inner wall of the slot 9.
[0029] The handle 12 is rotatably connected to the lock shell 1, and a lock core 13 is installed inside the handle 12. A connecting sleeve 14 is fixedly connected to the inner wall below the handle 12 near the lock core 13. A lock core dial button 15 is installed on the inner wall of the connecting sleeve 14. A square steel head pin 16 is installed at the lower end of the lock core dial button 15. An adjusting spring 17 is installed at the lower end of the square steel head pin 16. A square steel head 18 that is plugged into the inner wall of the slot 9 is installed at the lower end of the adjusting spring 17. A handle fixing block 19 is fixedly connected to the outer wall of the lower end of the connecting sleeve 14, and a bearing 21 is fixedly connected to the outer wall of the upper side of the connecting sleeve 14 near the handle fixing block 19.
[0030] Furthermore, the output end of the motor 2 is fixedly connected to one end of the push rod 3, the motor 2 drives the push rod 3 to extend and retract, one end of the push rod 3 abuts against one end of the pin 7, the outer wall of the connecting sleeve 14 and the inner wall of the clutch head 4 are rotatably connected, and the outer wall of the connecting sleeve 14 near the bottom of the handle fixing block 19 is provided with a positioning groove 20, and the inner wall of the positioning groove 20 is slidably connected to the outer wall of the pin 7.
[0031] It should be noted that: when performing remote intelligent unlocking, the control motor 2 is started to extend the push rod 3 at one end to push the pin 7 on one side, so that it overcomes the elastic force of the pin spring 6 and extends into the positioning groove 20 on one side of the connecting sleeve 14, so that the clutch head 4 and the connecting sleeve 14 are connected together. When the handle 12 is turned, the clutch head 4 rotates together, thereby achieving the purpose of unlocking.
[0032] Furthermore, the lock core dial button 15 is connected in cooperation with the lock core 13 to convert the left and right rotational motion of the key into the up and down motion of the square steel head pin 16. The side walls at both ends of the adjusting spring 17 are fixedly connected to the square steel head pin 16 and one side of the square steel head 18 respectively. The outer wall of the square steel head 18 is slidably connected to the inner wall of the connecting sleeve 14. The inner wall of the square steel head 18 abuts against one end of the return spring 10. The outer wall of the square steel head 18 and the cross-section of the slot 9 are rectangular. The outer wall of the bearing 21 is fixedly connected to the inner wall of the fixed sleeve 11, and the connecting sleeve 14 is rotatably connected to the inner wall of the fixed sleeve 11 through the bearing 21.
[0033] It should be noted that: when using the key to unlock, the lock core 13 rotates and drives the lock core dial button 15 below to rotate, which in turn pushes the square steel head pin 16 to push the adjusting spring 17 to move in the connecting sleeve 14. One end of the adjusting spring 17 pushes the square steel head 18 to slide, so that the square steel head 18 overcomes the elastic force of the internal return spring 10 and enters the slot 9 in the clutch head 4, so that the clutch head 4 is connected to the connecting sleeve 14 and the handle 12. When the handle 12 is turned, the clutch head 4 is driven to rotate. If the handle 12 is skewed when unlocking, the square steel head 18 cannot be normally inserted into the slot 9 on the clutch head 4. The lock core 13 is rotated to compress the adjusting spring 17. After turning the handle 12 to return it to the original position, one end of the adjusting spring 17 rebounds, causing the square steel head 18 to enter the slot 9. At this time, the handle 12 can be turned for normal unlocking.
[0034] The working principle of this new intelligent lock clutch structure:
[0035] When performing remote intelligent unlocking, the control motor 2 is started to extend the push rod 3 at one end to push the pin 7 on one side, so that it overcomes the elastic force of the pin spring 6 and extends into the positioning groove 20 on one side of the connecting sleeve 14, so that the clutch head 4 and the connecting sleeve 14 are connected together. When the handle 12 is turned, the clutch head 4 is rotated together, thereby achieving the purpose of unlocking. When the key is used to unlock, the lock cylinder 13 rotates to drive the lock cylinder dial button 15 below to rotate, thereby pushing the square steel head pin 16 to push the adjustment spring 17 to move in the connecting sleeve 14. One end of the adjustment spring 17 pushes the square steel head 18 to slide, so that the square steel head 18 overcomes the internal The elastic force of the return spring 10 enters the slot 9 in the clutch head 4, connecting the clutch head 4 to the connecting sleeve 14 and the handle 12. When the handle 12 is turned, the clutch head 4 is driven to rotate. If the handle 12 is skewed when unlocking, the square steel head 18 cannot be normally inserted into the slot 9 on the clutch head 4. The lock cylinder 13 is rotated to compress the adjusting spring 17. At this time, after the handle 12 is turned to return to the original position, one end of the adjusting spring 17 rebounds, causing the square steel head 18 to enter the slot 9. At this time, the handle 12 can be turned for normal unlocking, which effectively solves the defect that the mechanical key can be used to unlock the door when the handle 12 is skewed.
[0036] It should be noted that the specific model and specifications of the motor need to be selected and determined based on the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.
[0037] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.
Claims
1. A novel intelligent lock clutch structure, comprising a lock housing (1) and a clutch head (4) and a handle (12) arranged on the lock housing (1), characterized in that: A motor (2) is installed inside the lock housing (1), a push rod (3) is installed at the output end of the motor (2), and a fixing sleeve (11) is fixedly connected to the inner wall of the upper end of the lock housing (1); The clutch head (4) is mounted on the inner wall of the lock housing (1) away from the fixed sleeve (11), one end of the outer wall of the clutch head (4) is fixedly connected to a pin baffle (5), the inner wall of the clutch head (4) close to the pin baffle (5) is fixedly connected to a pin spring (6), one end of the pin spring (6) is fixedly connected to a retaining ring (8), the inner wall of the retaining ring (8) is fixedly connected to a pin (7) slidably connected to the inner wall of the pin baffle (5), one end of the clutch head (4) is provided with a slot (9), the inner wall of the slot (9) is fixedly connected to a return spring (10); The handle (12) is rotatably connected to the lock housing (1), a lock core (13) is installed inside the handle (12), a connecting sleeve (14) is fixedly connected to the inner wall below the handle (12) near the lock core (13), a lock core dial button (15) is installed on the inner wall of the connecting sleeve (14), a square steel head pin (16) is installed at the lower end of the lock core dial button (15), an adjustment spring (17) is installed at the lower end of the square steel head pin (16), a square steel head (18) plugged into the inner wall of the slot (9) is installed at the lower end of the adjustment spring (17), a handle fixing block (19) is fixedly connected to the outer wall of the lower end of the connecting sleeve (14), and a bearing (21) is fixedly connected to the outer wall of the upper side of the connecting sleeve (14) near the handle fixing block (19).
2. A novel smart lock clutch structure according to claim 1, characterized in that: The output end of the motor (2) is fixedly connected to one end of the push rod (3), and the motor (2) drives the push rod (3) to extend and retract, and one end of the push rod (3) abuts against one end of the pin (7).
3. A novel smart lock clutch structure according to claim 2, characterized in that: The outer wall of the connecting sleeve (14) is rotatably connected to the inner wall of the clutch head (4). A positioning groove (20) is provided on the outer wall of the connecting sleeve (14) below the handle fixing block (19). The inner wall of the positioning groove (20) is slidably connected to the outer wall of the pin (7).
4. The novel intelligent lock clutch structure according to claim 1 is characterized in that: The lock core dial button (15) is connected to the lock core (13) to convert the left and right rotational motion of the key into the up and down motion of the square steel head pin (16), and the side walls of the adjustment spring (17) are fixedly connected to the square steel head pin (16) and one side of the square steel head (18) respectively.
5. The novel intelligent lock clutch structure according to claim 4 is characterized in that: The outer wall of the square steel head (18) is slidably connected to the inner wall of the connecting sleeve (14), the inner wall of the square steel head (18) is in contact with one end of the return spring (10), and the cross-section of the outer wall of the square steel head (18) and the slot (9) is rectangular.
6. The novel intelligent lock clutch structure according to claim 5 is characterized in that: The outer wall of the bearing (21) and the inner wall of the fixed sleeve (11) are fixedly connected, and the connecting sleeve (14) is rotatably connected to the inner wall of the bearing (21) and the fixed sleeve (11).