Motor clutch mechanism for door and window lock

Abstract

The utility model discloses a motor clutch mechanism for a door and window lock, which comprises an unlocking unit, a pull rod structure, a cylindrical pin, a sliding block, a motor structure and a shell, the unlocking unit is slidably arranged on the shell and provided with an extension part, the pull rod structure is slidably arranged on the extension part, a containing groove is arranged in the extension part, a side hole is arranged on the side wall of the containing groove, and the cylindrical pin is arranged on the side wall of the containing groove. The pull rod structure is provided with a groove, the groove is provided with an inclined face and can be communicated with the side hole, the sliding block is provided with a limiting part and a concave part, the motor structure is connected with the sliding block, the sliding block can slide along the containing groove so that the limiting part or the concave part can be opposite to the side hole, and when the limiting part is opposite to the side hole, the cylindrical pin can be located in a space formed by the side hole and the groove. And when the concave part is opposite to the side hole, the cylindrical pin can be positioned in a space formed by the side hole and the concave part. The manual starting state and the manual non-starting state can be switched by triggering the motor structure, and the motor structure has the advantages of few work hindrance, low power consumption and strong market competitiveness.

Description

Technical Field

[0001] The utility model relates to the field of lock structure design, in particular to a motor clutch mechanism for door and window locks. Background Art

[0002] Locks are often installed on doors or windows to maintain the doors or windows closed to prevent them from being opened by mistake. Locks are usually divided into mechanical locks and electronic locks. Compared with mechanical locks, electronic locks have more opening methods, such as fingerprint unlocking, face recognition unlocking, card swiping unlocking, etc., and are more flexible.

[0003] In order to facilitate users to manually open the lock directly in some occasions, many electronic locks used on doors and windows are equipped with a clutch mechanism. The clutch mechanism can be used to switch the lock between a state where it can be manually opened and a state where it cannot be manually opened, thereby improving the flexibility of the lock. Currently, the clutch mechanism on the lock is mostly switched by a motor.

[0004] However, the switching components of the clutch mechanisms currently on the market are provided with a return spring, and the motor needs to overcome the work done by the return spring when it is working, which places high requirements on the performance of the motor, consumes a lot of power, and has weak market competitiveness. Utility Model Content

[0005] The purpose of the utility model is to provide a motor clutch mechanism for door and window locks, which can solve one or more of the above problems.

[0006] According to one aspect of the utility model, a motor clutch mechanism for door and window locks is provided, comprising an unlocking unit, a pull rod structure, a cylindrical pin, a slider, a motor structure and a housing, wherein the unlocking unit is slidably arranged on the housing, the unlocking unit is provided with an extension portion, the pull rod structure is slidably arranged on the extension portion, a receiving groove is provided in the extension portion, a side hole is provided on the side wall of the receiving groove, the pull rod structure is provided with a groove, the groove is provided with an inclined surface, the groove can be connected with the side hole, the slider is provided with a limiting portion and a recessed portion, the motor structure is connected to the slider, and the slider can slide along the receiving groove so that the limiting portion or the recessed portion is opposite to the side hole.

[0007] When the limiting portion and the side hole are opposite to each other, the cylindrical pin can be located in the space formed by the side hole and the groove.

[0008] When the recessed portion and the side hole are opposite to each other, the cylindrical pin can be located in a space formed by the side hole and the recessed portion.

[0009] The beneficial effect of the utility model is that the utility model can be applied to the lock of doors and windows, the movement of the unlocking unit corresponds to the switch of the lock, and when the motor structure drives the slider to move to the position relative to the side hole, the cylindrical pin will be located in the space formed by the side hole and the groove, so that the pull rod structure and the unlocking unit are connected by the cylindrical pin, and the user can drive the unlocking unit to move to unlock by pulling the pull rod structure, on the contrary, when the motor structure drives the slider to move to the recess and the side hole, the cylindrical pin can be located in the space formed by the side hole and the recess, and the pull rod structure can only slide on the unlocking unit, and cannot drive the unlocking unit to move to unlock. Thus, by using the utility model, the lock can be switched between a state that can be opened manually and a state that cannot be opened manually by triggering the motor structure, and when the motor structure is in use, it only needs to drive the slider to move to achieve the above switching, the switching method is simple, and there is no need to be hindered by the reset spring, etc., the motor structure performance requirements are low, the motor structure size is convenient to refine, the power consumption requirements of the motor structure are also low, and the market competitiveness is strong.

[0010] In addition, in the utility model, an inclined surface is provided in the groove, so that when the recess and the side hole are opposite to each other and the pull rod structure moves, the inclined surface can generate a certain component force to ensure that the cylindrical pin can effectively enter the space formed by the side hole and the recess.

[0011] In some embodiments, the unlocking unit includes a lock fork block and a sliding member, the extension portion is provided on the sliding member, and the lock fork block and the sliding member are connected. The lock fork block can be used to connect with the lock cylinder device to facilitate the realization of opening and closing the lock, and the sliding member can facilitate the sliding of the unlocking unit on the housing.

[0012] In some embodiments, the pull rod structure includes a rod and a rod head, the housing is provided with a through hole, one end of the rod is connected to the rod head, and the other end of the rod passes through the through hole. The through hole can limit the movement of the rod to reduce the misalignment of the rod when it moves.

[0013] In some embodiments, the pull rod structure includes a return spring, the rod head is provided with a limit column, the return spring is sleeved on the limit column, one end of the return spring abuts against the rod head, and the other end abuts against the housing. The setting of the return spring can facilitate the reset of the rod head when it is not subjected to force after moving.

[0014] In some embodiments, the rod head is provided with a limiting groove, the groove is provided on the side wall of the limiting groove, the extension extends into the limiting groove, the rod head is provided with a guide groove, the extension is provided with a guide block, and the guide block is embedded in the guide groove. The limiting groove can limit the position of the extension, and the setting of the guide groove and the guide block can guide the relative sliding between the extension and the rod head, thereby reducing the misalignment movement between them.

[0015] In some embodiments, the motor structure includes a motor, a lead screw and a motor seat, the motor and the lead screw are connected, the slider is sleeved on the lead screw, the motor is installed on the motor seat, and the motor seat is embedded in the housing.

[0016] In some embodiments, the motor structure includes a limit spring, which is sleeved on the lead screw, one end of which abuts against the motor, and the other end of which abuts against the slider. The setting of the limit spring can limit the movable range of the slider to avoid excessive movement of the slider.

[0017] In some embodiments, the housing includes a base and a cover plate, the cover plate is connected to the base and covers the motor structure, the base is provided with a cavity, and the unlocking unit and the pull rod structure are both slidably disposed in the cavity. The cover plate can conveniently hide and protect the motor structure to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention is a schematic structural diagram of a motor clutch mechanism for door and window locks according to an embodiment of the present invention.

[0019] Figure 2 An exploded view of the structural schematic diagram of a motor clutch mechanism for door and window locks according to one embodiment of the utility model.

[0020] Figure 3 This is a front view of a schematic structural diagram of a motor clutch mechanism for door and window locks according to an embodiment of the utility model, without a cover plate and in a state where the lock can be manually unlocked.

[0021] Figure 4 This is a front view of a structural schematic diagram of a motor clutch mechanism for door and window locks according to an embodiment of the utility model, in which a cover plate is not provided and the mechanism is in a state where manual unlocking is not possible.

[0022] Figure 5 The present invention is a schematic structural diagram of a sliding member of a motor clutch mechanism for door and window locks according to an embodiment of the present invention.

[0023] Figure 6 The present invention is a schematic structural diagram of a pull rod structure of a motor clutch mechanism for door and window locks according to an embodiment of the present invention.

[0024] Figure 7 The present invention is a schematic structural diagram of a motor structure and a slider of a motor clutch mechanism for a door and window lock after being connected.

[0025] In the figure: 1. unlocking unit, 2. pull rod structure, 3. cylindrical pin, 4. slider, 5. motor structure, 6. housing, 11. lock fork block, 12. sliding member, 121. extension part, 122. guide block, 123. accommodating groove, 124. side hole, 21. rod, 22. rod head, 23. return spring, 221. limit groove, 222. groove, 223. guide groove, 224. limit column, 225. inclined surface, 51. motor, 52. lead screw, 53. motor seat, 54. limit spring, 41. limit part, 42. recess, 61. base, 62. cover plate, 611. cavity, 612. through hole DETAILED DESCRIPTION

[0026] The structural principle and working principle of the utility model are further described in detail below with reference to the accompanying drawings.

[0027] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The utility model discloses a motor clutch mechanism for door and window locks, comprising an unlocking unit 1, a pull rod structure 2, a cylindrical pin 3, a slider 4, a motor structure 5 and a housing 6.

[0028] The housing 6 includes a base 61 and a cover plate 62 . The cover plate 62 is fixedly connected to the base 61 by bolts. The base 61 is provided with a cavity 611 .

[0029] The unlocking unit 1 includes a locking fork block 11 and a sliding member 12. The sliding member 12 and the locking fork block 11 are fixedly connected by bolts. After the connection, the locking fork block 11 and the sliding member 12 can be slidably embedded in the cavity 611 of the base 61. An extension portion 121 is provided on the top of the sliding member 12.

[0030] The pull rod structure 2 includes a rod 21 and a rod head 22. One end of the rod 21 is integrally connected to the rod head 22. The rod head 22 can also be slidably disposed in a cavity 611 of the base 61. The base 61 of the shell 6 is also provided with a through hole 612. The other end of the rod 21 passes through the through hole 612. The through hole 612 can play a certain limiting role on the rod 21, thereby reducing the movement and dislocation of the rod 21 when it moves.

[0031] A limiting groove 221 is formed on the rod head 22 , a groove 222 is formed on the side wall of the limiting groove 221 , and an inclined surface 225 is formed in the groove 222 .

[0032] When the extension portion 121 extends into the limiting groove 221, the rod head 22 of the pull rod structure 2 can be slidably disposed on the extension portion 121, and a guide groove 223 is also disposed in the limiting groove 221 of the rod head 22. A guide block 122 is disposed on the extension portion 121, and the guide block 122 is embedded in the guide groove 223 to reduce positional deviation when the rod head 22 and the extension portion 121 slide relative to each other.

[0033] The pull rod structure 2 also includes a return spring 23. A limit column 224 is provided at the bottom of the rod head 22. The return spring 23 is sleeved on the limit column 224, and one end of the return spring 23 abuts against the rod head 22, and the other end of the return spring 23 abuts against the base 61 of the shell 6.

[0034] The extension portion 121 is provided with a receiving groove 123 , and a side hole 124 is provided on the side wall of the receiving groove 123 . When the pull rod structure 2 is in a normal position, that is, when it is not pulled, the groove 222 thereon can be opposite to and communicate with the side hole 124 .

[0035] The motor structure 5 includes a motor 51, a lead screw 52 and a motor seat 53. The body of the motor 51 is fixedly mounted on the motor seat 53 by bolts, the rotating shaft of the motor 51 is connected to the lead screw 52, ​​so that the motor 51 can drive the lead screw 52 to rotate, and the motor seat 53 is fixedly embedded in the base 61 of the housing 6, and after the cover plate 62 is fixedly connected to the base 61, the cover plate 62 can cover the motor 51, the lead screw 52 and the motor seat 53 and other structures to hide and protect the motor structure 5.

[0036] The slider 4 is sleeved on the lead screw 52 by threaded engagement, and the slider 4 is embedded in the receiving groove 123 , so that as the motor 51 rotates, the lead screw 52 can rotate, thereby allowing the slider 4 to slide along the receiving groove 123 .

[0037] The motor structure 5 may further include a limit spring 54. The limit spring 54 is sleeved on the lead screw 52, ​​one end of the limit spring 54 abuts against the motor 51, and the other end of the limit spring 54 abuts against the slider 4. The setting of the limit spring 54 can limit the movable distance of the slider 4 to a certain extent, thereby preventing the slider 4 from moving excessively.

[0038] The slider 4 is provided with a limiting portion 41 and a recessed portion 42 , and when the slider 4 moves, the limiting portion 41 or the recessed portion 42 can be opposite to the side hole 124 .

[0039] When the limiting portion 41 and the side hole 124 are opposite to each other, the cylindrical pin 3 can be located in the space formed by the side hole 124 and the groove 222. At this time, one side of the cylindrical pin 3 can abut against the limiting portion 41, and the other side can abut against the inclined surface 225 on the groove 222; when the recess 42 and the side hole 124 are opposite to each other, the cylindrical pin 3 can be located in the space formed by the side hole 124 and the recess 42.

[0040] When the utility model is in use, the lock fork block 11 of the unlocking unit 1 can be connected to the lock core device of the door and window lock, so that the lock fork block 11 of the unlocking unit 1 can trigger the unlocking action accordingly when it moves, and the motor 51 can be connected to the external control component to facilitate triggering through common fingerprints, face recognition or card swiping.

[0041] When manual unlocking is required, the motor 51 can drive the slider 4 to slide along the accommodating groove 123 to make the limiting portion 41 and the side hole 124 opposite to each other. At this time, the cylindrical pin 3 can be located in the space formed by the side hole 124 and the groove 222. At this time, one side of the cylindrical pin 3 can abut against the limiting portion 41, and the other side can abut against the inclined surface 225 on the groove 222. Then, the rod head 22 and the extension portion 121 are fixedly connected through the cylindrical pin 3, and the two cannot slide relative to each other.

[0042] At this time, the user can pull the rod 21 of the pull rod structure 2, the return spring 23 is compressed, the rod head 22 moves downward, and the extension part 121 also moves downward, that is, the sliding member 12 moves downward together with the lock fork block 11, and the movement of the lock fork block 11 triggers the door and window lock to open.

[0043] When the user stops pulling the pull rod structure 2, the rod head 22 is reset due to the elastic effect of the return spring 23, and the sliding member 12 and the lock fork block 11 are also reset, so that the door and window lock can be locked again.

[0044] When manual unlocking is not required, the motor 51 can drive the slider 4 to slide along the accommodating groove 123 to make the recess 42 and the side hole 124 face each other. At this time, when the user pulls the rod 21, the return spring 23 is compressed, and the rod head 22 moves downward, and the inclined surface 225 can push the cylindrical pin 3 into the space formed by the side hole 124 and the recess 42, that is, the rod head 22 and the extension part 121 are no longer connected, and the two will slide relative to each other, so that the movement of the rod head 22 cannot drive the movement of the extension part 121, that is, the locking fork block 11 does not move, and the user cannot achieve the unlocking action by pulling the pull rod structure 2.

[0045] Therefore, by using the utility model, the lock can be switched between a state where it can be manually opened and a state where it cannot be manually opened by triggering the motor 51. The operation is convenient, and when the motor 51 is in use, it only needs to drive the slider 4 to move to achieve the above-mentioned switching. The switching method is simple and there is no need to be hindered by a reset spring or the like. The performance requirements of the motor 51 are low, and it is convenient to refine the size of the motor 51. The power consumption requirement of the motor 51 is also low, and the market competitiveness is strong.

[0046] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A motor clutch mechanism for door and window locks, characterized in that: It includes an unlocking unit, a pull rod structure, a cylindrical pin, a slider, a motor structure and a shell, wherein the unlocking unit is slidably arranged on the shell, the unlocking unit is provided with an extension part, the pull rod structure is slidably arranged on the extension part, a receiving groove is provided in the extension part, a side hole is provided on the side wall of the receiving groove, the pull rod structure is provided with a groove, the groove is provided with an inclined surface, the groove can be connected with the side hole, the slider is provided with a limiting part and a recessed part, the motor structure is connected to the slider, and the slider can slide along the receiving groove so that the limiting part or the recessed part is opposite to the side hole. When the limiting portion and the side hole are opposite to each other, the cylindrical pin can be located in the space formed by the side hole and the groove. When the recessed portion and the side hole are opposite to each other, the cylindrical pin can be located in a space formed by the side hole and the recessed portion.

2. A motor clutch mechanism for door and window locks according to claim 1, characterized in that: The unlocking unit comprises a locking fork block and a sliding member, the extending portion is arranged on the sliding member, and the locking fork block and the sliding member are connected.

3. A motor clutch mechanism for door and window locks according to claim 1, characterized in that: The pull rod structure comprises a rod and a rod head. The shell is provided with a through hole. One end of the rod is connected to the rod head, and the other end of the rod passes through the through hole.

4. A motor clutch mechanism for door and window locks according to claim 3, characterized in that: The pull rod structure comprises a return spring, the rod head is provided with a limiting column, the return spring is sleeved on the limiting column, one end of the return spring abuts against the rod head, and the other end abuts against the housing.

5. The motor clutch mechanism for door and window locks according to claim 3, characterized in that: The rod head is provided with a limiting groove, the groove is provided on the side wall of the limiting groove, the extension part extends into the limiting groove, the rod head is provided with a guide groove, the extension part is provided with a guide block, and the guide block is embedded in the guide groove.

6. A motor clutch mechanism for door and window locks according to claim 1, characterized in that: The motor structure comprises a motor, a lead screw and a motor seat, the motor and the lead screw are connected, the slider is sleeved on the lead screw, the motor is installed on the motor seat, and the motor seat is embedded in the housing.

7. A motor clutch mechanism for door and window locks according to claim 6, characterized in that: The motor structure comprises a limit spring, which is sleeved on the lead screw, one end of the limit spring abuts against the motor, and the other end abuts against the slider.

8. The motor clutch mechanism for door and window locks according to claim 1, characterized in that: The shell comprises a base and a cover plate, wherein the cover plate is connected to the base and covers the motor structure, and the base is provided with a cavity, and the unlocking unit and the pull rod structure are both slidably arranged in the cavity.

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