Fool lock driving structure

Abstract

The utility model relates to a dead lock driving structure, including lock cylinder, shaft lever, linkage piece and drive subassembly, the shaft lever is connected with the lock cylinder and can rotate along with the lock cylinder, the linkage piece is sleeved on the periphery of the shaft lever, the linkage piece is provided with the through hole for the shaft lever to pass through, the inner circumference of the through hole is provided with two right-angle boss, and the right-angle boss is provided with a through hole for the shaft lever to pass through. The two right-angle bosses are rotationally and symmetrically arranged with the center of the through hole as the axis, two fan-shaped clutch grooves are formed between the two right-angle bosses, the driving assembly can drive the linkage piece to rotate, the linkage piece drives the shaft rod to rotate through the right-angle bosses, and the linkage piece drives the shaft rod to rotate through the right-angle bosses. Or the linkage piece avoids the shaft rod through the clutch groove and independently rotates. The structure is simple and reasonable, linkage between the driving assembly and the shaft rod can be disconnected after the driving assembly changes the state of the shaft rod, it is guaranteed that the rotating shaft has sufficient rotating space, and therefore the use safety of a product is improved, and the service life of the product is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of locks, and in particular to a deadlock driving structure. Background Art

[0002] Deadbolt locks are a widely used type of lock. Currently, some deadbolt locks are available on the market, offering both key and electric unlocking (such as fingerprint or password unlocking). These locks typically have a motor for opening and closing the lock. During electric unlocking, the motor drives a shaft, which in turn drives the bolt to extend and retract. In existing deadbolt locks, after the shaft's state changes, the motor's transmission structure can obstruct the shaft. When the user uses the key to open and close the lock again, the shaft drives the transmission structure in the opposite direction, causing the motor to rotate in reverse, shortening its lifespan. Furthermore, this structure can become stuck, rendering the lock inoperable using the key and posing a safety hazard. Utility Model Content

[0003] The purpose of the utility model is to provide a deadlock drive structure, which has a simple and reasonable structure and can disconnect the linkage between the two after the driving component changes the state of the shaft rod, and ensure that the rotating shaft has sufficient rotation space, thereby improving the safety of product use and extending the service life of the product.

[0004] A deadlock drive structure includes a lock core, a shaft, a linkage, and a drive assembly. The shaft is connected to the lock core and can rotate with the lock core. The linkage is sleeved on the outer circumference of the shaft. The linkage is provided with a through hole for the shaft to pass through. The inner circumference of the through hole is provided with two right-angle bosses. The two right-angle bosses are rotationally symmetrically arranged with the center of the through hole as the axis. Two fan-shaped clutch grooves are formed between the two right-angle bosses. The drive assembly can drive the linkage to rotate. The linkage drives the shaft to rotate through the right-angle boss, or the linkage avoids the shaft through the clutch groove and rotates independently.

[0005] In the above technical solution, the linkage is provided with a right-angled boss, and the drive assembly can drive the linkage to rotate clockwise or counterclockwise. The linkage then drives the shaft to rotate via the right-angled boss, thereby extending or retracting the lock tongue. The linkage is also provided with two fan-shaped clutch slots. When the linkage drives the shaft to rotate, the drive assembly drives the linkage to rotate in the opposite direction. At this time, the linkage avoids the shaft through the clutch slots and rotates independently. At the same time, after the reverse rotation, the clutch slot is located in front of the next rotation of the shaft, thereby providing space for the key to drive the shaft. When the user uses the key to open or close the lock, the shaft can rotate independently relative to the linkage, thereby avoiding driving the drive assembly. On the one hand, this can prevent the drive assembly from blocking the shaft, thereby improving the safety of product use; on the other hand, it can prevent the shaft from driving the drive assembly, thereby extending the service life of the product.

[0006] Furthermore, the right-angle boss includes a first surface and a second surface that are perpendicular to each other, the first surfaces of the two right-angle bosses and the second surfaces of the two right-angle bosses are parallel, and the linkage drives the shaft to rotate forward or reverse through the first surface or the second surface.

[0007] In the above technical solution, the shaft has two states: unlocked and locked. The two states are respectively against the first surface or the second surface. At this time, the linkage is rotated to drive the shaft through the first surface or the second surface, thereby switching the shaft from one state to another.

[0008] Furthermore, the distance between the planes where the two first surfaces are located, and the distance between the planes where the two second surfaces are located, are equal to the thickness of the shaft and smaller than the width of the shaft.

[0009] In the above technical solution, it can be ensured that the two first surfaces or the two second surfaces can be closely against the surface of the shaft, thereby improving the efficiency and stability of driving the shaft to rotate.

[0010] Furthermore, it also includes a sensing part, which is arranged on the outer periphery of the linkage part. The outer periphery of the linkage part is provided with a first boss, and second bosses are provided on both sides of the first boss. The linkage part can be rotated to make the first boss or the second boss contact the sensing part.

[0011] In the above technical solution, the sensing part can determine the rotation position of the linkage part by sensing the first boss and the second boss. Specifically, in the initial state, the first boss is against the sensing part. When the user performs the unlocking or locking action, the linkage part rotates clockwise or counterclockwise, so that one of the second bosses contacts the sensing part. At this time, the sensing part obtains the first contact signal, and then the linkage part rotates in the opposite direction and resets, so that the first boss contacts the sensing part again. At this time, the sensing part obtains the second contact signal, that is, in each complete unlocking or locking action of the linkage part, the sensing part will obtain two contact signals. The number of contact signals can be used to determine whether the linkage part has rotated into place or whether the unlocking or locking action is completed.

[0012] Furthermore, the angle between the line connecting the first boss and the center of the linkage member and the line connecting the second boss and the center of the linkage member is 90°.

[0013] In the above technical solution, by setting the angle of the line connecting the first boss and the second push and the center of the linkage part, the angle required for the linkage part to rotate each time it is unlocked and locked can be determined, thereby judging whether the action of the linkage part is in place.

[0014] Furthermore, the first boss and the second boss are formed in a semicircular shape protruding from the outer peripheral surface of the linkage member.

[0015] Furthermore, the driving assembly includes a driving member and a first gear connected to the driving member. A second gear is provided on the outer periphery of the linkage member, and the second gear is meshed with the first gear.

[0016] In the above technical solution, the driving member drives the linkage member to rotate through the cooperation of the first gear and the second gear, and the structure is simple and reasonable.

[0017] Furthermore, the lock core is provided with a keyhole for inserting a key.

[0018] Compared with the prior art, the present invention has the following beneficial effects: the linkage member is provided with a right-angled boss, and the drive assembly can drive the linkage member to rotate clockwise or counterclockwise. The linkage member then drives the shaft to rotate via the right-angled boss, thereby extending or retracting the lock tongue. The linkage member is also provided with two fan-shaped clutch grooves. When the linkage member drives the shaft to rotate, the drive assembly drives the linkage member to rotate in the opposite direction. At this time, the linkage member avoids the shaft through the clutch grooves and rotates independently. At the same time, after the reverse rotation, the clutch groove is located in front of the next rotation of the shaft, thereby providing space for the key to drive the shaft. When the user uses the key to open or close the lock, the shaft can rotate independently relative to the linkage member, thereby avoiding driving the drive assembly. On the one hand, this can prevent the drive assembly from blocking the shaft, thereby improving the safety of the product; on the other hand, it can prevent the shaft from driving the drive assembly, thereby extending the service life of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural diagram of the deadlock drive structure of an embodiment of the present utility model.

[0020] Figure 2 This is a schematic structural diagram of the linkage component of an embodiment of the present utility model.

[0021] Figure 3 Schematic diagram of the unlocking action sequence of the deadbolt lock according to the embodiment of the present utility model.

[0022] Description of Figure Numbers:

[0023] Lock cylinder 1, shaft 2, linkage member 3, right-angled boss 31, first surface 311, second surface 312, clutch slot 32, first boss 33, second boss 34, second gear 35, drive assembly 4, drive member 41, first gear 42, sensor 5. DETAILED DESCRIPTION

[0024] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein.

[0025] Please refer to Figures 1 to 3 In a preferred embodiment, the deadlock drive structure of the present invention mainly includes a lock cylinder 1, a shaft rod 2, a linkage member 3, and a driving assembly 4. The shaft rod 2 is connected to the lock cylinder 1 and can rotate with the lock cylinder 1. The linkage member 3 is sleeved on the outer periphery of the shaft rod 2. The linkage member 3 is provided with a through hole for the shaft rod 2 to pass through. The inner periphery of the through hole is provided with two right-angled bosses 31. The two right-angled bosses 31 are rotationally symmetrically arranged with the center of the through hole as the axis. Two fan-shaped clutch grooves 32 are formed between the two right-angled bosses 31. The driving assembly 4 can drive the linkage member 3 to rotate. The linkage member 3 drives the shaft rod 2 to rotate through the right-angled boss 31, or the linkage member 3 avoids the shaft rod 2 through the clutch groove 32 and rotates independently.

[0026] As can be seen from the above technical solution, the linkage member 3 is provided with a right-angled boss 31, and the drive assembly 4 can drive the linkage member 3 to rotate clockwise or counterclockwise. The linkage member 3 then drives the shaft 2 to rotate via the right-angled boss 31, thereby extending or retracting the lock tongue. At the same time, the lock cylinder 1 is provided with a keyhole for inserting a key. The key can drive the lock cylinder 1 to rotate, thereby driving the shaft 2 to rotate. The linkage member 3 is also provided with two fan-shaped clutch grooves 32. When the linkage member 3 drives the shaft 2 to rotate, the drive assembly 4 drives the linkage member 3 to rotate in the opposite direction. At this time, the linkage member 3 avoids the shaft 2 through the clutch grooves 32 and rotates independently. At the same time, after the reverse rotation, the clutch grooves 32 are located in front of the next rotation of the shaft 2, thereby providing space for the key to drive the shaft 2. When the user uses the key to open or close the lock, the shaft 2 can rotate independently relative to the linkage member 3, thereby avoiding driving the drive assembly 4. On the one hand, this prevents the drive assembly 4 from blocking the shaft 2, thereby improving the safety of the product; on the other hand, it prevents the shaft 2 from driving the drive assembly 4, thereby extending the service life of the product.

[0027] The right-angled boss 31 includes a first surface 311 and a second surface 312 that are perpendicular to each other. The first surface 311 and the second surface 312 of the two right-angled bosses 31 are parallel to each other. The linkage member 3 drives the shaft 2 to rotate forward or reverse via the first surface 311 or the second surface 312. The shaft 2 has two states: unlocked and locked. In these states, the shaft 2 abuts against the first surface 311 or the second surface 312, respectively. In this state, rotating the linkage member 3 drives the shaft 2 via the first surface 311 or the second surface 312, thereby switching the shaft 2 from one state to the other.

[0028] In this embodiment, the distance between the planes where the two first surfaces 311 are located, and the distance between the planes where the two second surfaces 312 are located are equal to the thickness of the shaft 2 and smaller than the width of the shaft 2, thereby ensuring that the two first surfaces 311 or the two second surfaces 312 can be tightly against the surface of the shaft 2, thereby improving the efficiency and stability of driving the shaft 2 to rotate.

[0029] This embodiment further includes a sensing member 5, which is disposed on the outer periphery of the linkage member 3. The outer periphery of the linkage member 3 is provided with a first boss 33, and second bosses 34 are provided on either side of the first boss 33. The linkage member 3 can rotate so that the first boss 33 or the second boss 34 contacts the sensing member 5. In this embodiment, the first boss 33 and the second boss 34 are formed in a semicircular shape protruding from the outer periphery of the linkage member 3. The sensing member 5 can determine the rotation position of the linkage member 3 by sensing the first boss 33 and the second boss 34. Specifically, in the initial state, the first boss 33 is against the sensing member 5. When the user performs an unlocking or locking action, the linkage member 3 rotates clockwise or counterclockwise, so that one of the second bosses 34 contacts the sensing member 5. At this time, the sensing member 5 obtains the first contact signal, and then the linkage member 3 rotates in the opposite direction to reset, so that the first boss 33 contacts the sensing member 5 again. At this time, the sensing member 5 obtains the second contact signal, that is, in each complete unlocking or locking action of the linkage member 3, the sensing member 5 will obtain two contact signals. The number of contact signals can be used to determine whether the linkage member 3 has rotated into place or whether the unlocking or locking action is completed.

[0030] The angle between the line connecting the first boss 33 and the center of the linkage member 3 and the line connecting the second boss 34 and the center of the linkage member 3 is 90°. By setting the angle between the line connecting the first boss 33 and the second boss 34 and the center of the linkage member 3, the required rotation angle of the linkage member 3 can be determined for each unlocking and locking action, thereby determining whether the linkage member 3 has been fully engaged.

[0031] Please refer to Figure 3 In order to facilitate the understanding of the above technical solution, the following describes its working principle: the shaft 2 has two states: unlocked and locked. Figure 3 The shaft 2 in state a is in the locked state, and it needs to be rotated 90° counterclockwise to switch from the locked state to the unlocked state. The lock can be unlocked by a key or by electric unlocking. When the key is used to unlock, since the clutch slot 32 is located on the path of the shaft 2 rotating counterclockwise, the key unlocking can make the shaft 2 rotate along the clutch slot 32 without driving the linkage 3. When electric unlocking is used, the drive assembly 4 drives the linkage 3 to rotate counterclockwise, and the linkage 3 drives the shaft 2 to rotate counterclockwise through the first surface 311 of the right-angle boss 31. When the sensor 5 senses the contact signal of the second boss 34, it means that the locking action has been completed. At this time, the shaft 2 is in a vertical state, that is, Figure 3 Then the driving member 41 rotates in the opposite direction, driving the linkage member 3 to rotate clockwise. Due to the clutch slot 32, the linkage member 3 rotates independently relative to the shaft 2. When the sensing member 5 senses the contact signal of the first boss 33, it indicates that the linkage member 3 is reset to its original position, the driving member 41 stops, and the locking action is completed. Figure 3If you want to use the key to unlock the door, you need to use the key to drive the shaft 2 to rotate 90 degrees clockwise. Since the clutch groove 32 is located in front of the path of the clockwise rotation of the shaft 2, the key can be used to drive the shaft 2 to rotate independently without driving the linkage member 3.

[0032] The drive assembly 4 includes a drive member 41 and a first gear 42 connected to the drive member 41. A second gear 35 is provided on the outer periphery of the linkage member 3, and the second gear 35 meshes with the first gear 42. The drive member 41 drives the linkage member 3 to rotate through the cooperation of the first gear 42 and the second gear 35, resulting in a simple and reasonable structure.

[0033] In the description of the present invention, it should be understood that terms such as "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A deadlock drive structure, characterized in that: It includes a lock core, a shaft, a linkage, and a drive assembly. The shaft is connected to the lock core and can rotate with the lock core. The linkage is sleeved on the outer circumference of the shaft. The linkage is provided with a through hole for the shaft to pass through. The inner circumference of the through hole is provided with two right-angle bosses. The two right-angle bosses are rotationally symmetrically arranged with the center of the through hole as the axis. Two fan-shaped clutch grooves are formed between the two right-angle bosses. The drive assembly can drive the linkage to rotate. The linkage drives the shaft to rotate through the right-angle bosses, or rotates independently relative to the shaft through the clutch groove.

2. The deadlock drive structure according to claim 1, characterized in that: The right-angle boss includes a first surface and a second surface perpendicular to each other. The first surfaces of the two right-angle bosses and the second surfaces of the two right-angle bosses are parallel to each other. The linkage member drives the shaft to rotate forward or reverse through the first surface or the second surface.

3. The deadlock driving structure according to claim 2, characterized in that: The distance between the planes where the two first surfaces are located and the distance between the planes where the two second surfaces are located are equal to the thickness of the shaft and smaller than the width of the shaft.

4. The deadlock driving structure according to claim 1, characterized in that: It also includes an induction member, which is arranged on the outer periphery of the linkage member. The outer periphery of the linkage member is provided with a first boss, and second bosses are provided on both sides of the first boss. The linkage member can be rotated to make the first boss or the second boss contact the induction member.

5. The deadlock driving structure according to claim 4, characterized in that: An angle between a line connecting the first boss and the center of the linkage member and a line connecting the second boss and the center of the linkage member is 90°.

6. The deadlock driving structure according to claim 4, characterized in that: The first boss and the second boss are formed in a semicircular shape protruding from the outer circumferential surface of the linkage member.

7. The deadlock driving structure according to claim 1, characterized in that: The driving assembly includes a driving member and a first gear connected to the driving member. A second gear is provided on the outer periphery of the linkage member, and the second gear is meshed with the first gear.

8. The deadlock driving structure according to claim 1, characterized in that: The lock core is provided with a key hole for inserting a key.

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