Door lock

Abstract

The utility model relates to the technical field of locks, and provides a door lock. The door lock comprises a panel, a handle, a connecting piece, a driving device and a transmission shaft, a handle rotating shaft is arranged on the handle, and the handle is rotatably installed on the panel through the handle rotating shaft; the connecting piece is mounted in the handle rotating shaft and can rotate relative to the handle rotating shaft; the driving device is mounted on the panel; the transmission shaft is connected with the driving device, extends into the connecting piece, is driven by the driving device or the handle to rotate, and is linked with the connecting piece; a clutch mechanism is arranged on the handle, the clutch mechanism is used for being matched with or separated from the connecting piece in a limiting mode, when the clutch mechanism is matched with the connecting piece in a limiting mode, the handle is in linkage with the connecting piece, and when the clutch mechanism is separated from the connecting piece, the handle is not in linkage with the connecting piece. According to the door lock provided by the utility model, when the driving device drives the transmission shaft to rotate for unlocking, the clutch mechanism can be separated from the connecting piece, so that the handle cannot be driven to rotate, and the user experience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of locks, in particular to a door lock. Background Art

[0002] For the existing intelligent door locks, when a user unlocks the door from inside, the square shaft can be driven to rotate in two ways, namely by turning the handle or by a motor drive, so as to unlock the door. Since the square shaft is fixed to the motor and the handle respectively, when the motor drives the square shaft to unlock the door, the motor drives the square shaft to rotate, and the square shaft will also drive the handle to rotate together, which affects the user experience. Content of the Utility Model

[0003] In order to solve the above technical problems or at least partially solve the above technical problems, the utility model provides a door lock.

[0004] The utility model provides a door lock, comprising:

[0005] A panel;

[0006] A handle, on which a handle rotating shaft is arranged, and the handle is rotatably mounted on the panel through the handle rotating shaft;

[0007] A connecting piece, which is installed inside the handle rotating shaft and can rotate relative to the handle rotating shaft;

[0008] A driving device, which is installed on the panel;

[0009] A transmission shaft, which is connected to the driving device and extends into the inside of the connecting piece, so as to rotate under the drive of the driving device or the handle and be linked with the connecting piece;

[0010] Wherein, a clutch mechanism is arranged on the handle, and the clutch mechanism is used for limiting cooperation or disengaging cooperation with the connecting piece.

[0011] The door lock provided by the present utility model is provided with a clutch mechanism on the handle. The connecting member is installed inside the handle rotating shaft and can rotate relative to the handle rotating shaft. The clutch mechanism is used for limiting cooperation or disengaging cooperation with the connecting member. When the clutch mechanism disengages from the connecting member, the handle and the connecting member are not linked, and when either the handle or the connecting member rotates, it will not drive the other to rotate together. When the clutch mechanism is in limiting cooperation with the connecting member, the handle and the connecting member are linked, and when either the handle or the connecting member rotates, it will drive the other to rotate together. In this way, when it is necessary to drive the transmission shaft to rotate through the handle to unlock the door, the clutch mechanism can be made to be in limiting cooperation with the connecting member. At this time, the handle and the connecting member are linked, and by rotating the handle, the connecting member can be driven to rotate, and then the transmission shaft installed inside the connecting member can be driven to rotate, so as to achieve the purpose of unlocking. When it is necessary to drive the transmission shaft to rotate through the driving device to unlock the door, the clutch mechanism can be made to disengage from the connecting member. At this time, the handle and the connecting member are not linked, and the driving device drives the transmission shaft and the connecting member to rotate, and the unlocking purpose is achieved through the rotation of the transmission shaft. At the same time, the rotation of the connecting member will not drive the handle to rotate together, so as to achieve the purpose that the handle remains stationary when the transmission shaft is driven to rotate through the driving device, which is beneficial to improving the user experience.

[0012] In some embodiments, the clutch mechanism includes a sliding member, the handle includes a handle body, and the sliding member is slidably disposed on the handle body;

[0013] A limiting convex portion is provided on one of the sliding member and the connecting member, and a limiting groove is provided on the other. The limiting convex portion is inserted into the limiting groove, and the clutch mechanism is in limiting cooperation with the connecting member; the limiting convex portion disengages from the limiting groove, and the clutch mechanism and the connecting member are disengaged from each other.

[0014] In some embodiments, the sliding member includes a driving slider and a driven slider. A first rack portion is provided on the driving slider, a second rack portion is provided on the driven slider, and a gear is provided between the first rack portion and the second rack portion. The driving slider drives the driven slider to slide through the gear;

[0015] The limiting convex portion includes a first limiting convex portion provided on the driving slider and a second limiting convex portion provided on the driven slider. The first limiting convex portion and the second limiting convex portion are oppositely arranged. The limiting groove is provided on the outer peripheral surface of the connecting member. The first limiting convex portion and the second limiting convex portion respectively insert into the limiting groove from both sides of the limiting groove, or disengage from the limiting groove in opposite directions.

[0016] In some embodiments, the active slider is a strip-shaped slider, and the first rack portions are respectively arranged on two opposite side surfaces of the active slider, and the first limiting convex portion is arranged at one end of the active slider facing the driven slider;

[0017] The driven slider has a U-shaped structure, and the second rack portions are respectively arranged on the inner wall surfaces of two opposite side portions of the driven slider, and the second limiting convex portion is arranged on the inner wall surface of the bottom of the driven slider;

[0018] The first rack portions on two sides of the active slider respectively correspond to the second rack portions on two sides of the driven slider one by one and are in meshing transmission through a gear.

[0019] In some embodiments, the clutch mechanism further includes a key, and the key is movably arranged on the handle main body;

[0020] A first mating inclined surface is arranged on the key, and a second mating inclined surface is arranged on the sliding member. When the key is pressed, the first mating inclined surface and the second mating inclined surface are in abutting cooperation to drive the sliding member to slide and make the limiting convex portion insert into the limiting groove.

[0021] In some embodiments, the handle main body includes a handle cover and a handle base, the handle cover and the handle base are connected to each other to form an installation cavity, and the sliding member is installed in the installation cavity;

[0022] The clutch mechanism further includes a first elastic reset member, and the first elastic reset member is elastically supported between one of the handle cover and the handle base and the sliding member to drive the sliding member to reset and make the limiting convex portion disengage from the limiting groove.

[0023] In some embodiments, the key is installed on the handle base, and an installation hole for partially exposing the key is formed in the handle base;

[0024] The clutch mechanism further includes a second elastic reset member, and the second elastic reset member is elastically supported between the key and the handle cover to drive the key to reset.

[0025] In some embodiments, the sliding member has a first side surface facing the handle cover and a second side surface facing the handle base, the first side surface and the second side surface are arranged in opposite directions, and at least one of the first side surface and the second side surface is provided with a recessed portion recessed toward the other.

[0026] In some embodiments, a handle hole is formed in the panel, and one end of the handle rotating shaft in the axial direction passes through the handle hole;

[0027] One end of the handle rotating shaft passing through the handle hole is provided with a turntable, and the turntable is sleeved on the handle rotating shaft and is in limit fit with the handle rotating shaft;

[0028] One end of the handle rotating shaft passing through the handle hole is provided with a nut, and the nut is threadedly connected to the handle rotating shaft to fix the turntable on the handle rotating shaft.

[0029] In some embodiments, a handle spring is sleeved on the shaft section of the handle rotating shaft passing through the handle hole, and the handle spring is elastically supported between one side surface of the panel facing the turntable and the turntable. Description of the Drawings

[0030] The drawings here are incorporated into the description and form a part of this description, showing embodiments consistent with the present utility model and, together with the description, are used to explain the principles of the present utility model.

[0031] To more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0032] Figure 1 It is a schematic structural diagram of the door lock according to an embodiment of the present utility model from the first perspective;

[0033] Figure 2 It is a schematic structural diagram of the door lock according to an embodiment of the present utility model from the second perspective;

[0034] Figure 3 It is an exploded view of the door lock according to an embodiment of the present utility model from the first perspective;

[0035] Figure 4 It is an exploded view of the door lock according to an embodiment of the present utility model from the second perspective;

[0036] Figure 5 It is an exploded view of the handle of the door lock according to an embodiment of the present utility model from the first perspective;

[0037] Figure 6 It is an exploded view of the handle of the door lock according to an embodiment of the present utility model from the second perspective;

[0038] Figure 7 It is a schematic internal structure diagram of the handle when the button of the door lock according to an embodiment of the present utility model is not pressed;

[0039] Figure 8 It is a side cross-sectional view of the handle when the button of the door lock according to an embodiment of the present utility model is not pressed;

[0040] Figure 9 Schematic diagram of the internal structure of the handle when the button of the door lock according to an embodiment of the present utility model is pressed;

[0041] Figure 10 Side view cross-sectional view of the handle when the button of the door lock according to an embodiment of the present utility model is pressed.

[0042] Wherein, 1. Handle; 11. Handle rotating shaft; 111. Card slot; 12. Handle cover; 13. Handle base; 131. Mounting hole; 14. Button; 141. First mating inclined surface; 15. Active slider; 151. First rack portion; 152. First limiting convex portion; 153. Second mating inclined surface; 154. First recessed portion; 16. Driven slider; 161. Second rack portion; 162. Second limiting convex portion; 163. Second recessed portion; 17. Gear; 18. First elastic reset member; 19. Second elastic reset member; 2. Panel; 21. Handle hole; 3. Connecting member; 4. Handle spring; 5. Turntable; 51. Projection; 6. Stop washer; 7. Nut; 8. Motor; 9. Screw; 10. Transmission shaft. Detailed implementation manners

[0043] In order to more clearly understand the above objects, features and advantages of the present utility model, the solution of the present utility model will be further described below. It should be noted that, without conflict, the embodiments of the present utility model and the features in the embodiments can be combined with each other.

[0044] Many specific details are set forth in the following description in order to fully understand the present utility model, but the present utility model can also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0045] Referring to Figures 1 to 10 As shown, a door lock provided by some embodiments of the present utility model includes a panel 2, a handle 1, a connecting member 3, a driving device and a transmission shaft 10.

[0046] Wherein, a handle rotating shaft 11 is provided on the handle 1, and the handle 1 is rotatably mounted on the panel 2 through the handle rotating shaft 11; the connecting member 3 is installed inside the handle rotating shaft 11 and can rotate relative to the handle rotating shaft 11; the driving device is installed on the panel 2; the transmission shaft 10 is connected to the driving device and extends into the inside of the connecting member 3 to rotate under the drive of the driving device or the handle 1 and is linked with the connecting member 3; wherein, a clutch mechanism is provided on the handle 1, and the clutch mechanism is used for limiting cooperation or disengaging cooperation with the connecting member 3.

[0047] Specifically, when the clutch mechanism is in limit cooperation with the connecting member 3, a limit is formed between the handle 1 and the connecting member 3, and the handle 1 and the connecting member 3 are linked; when the clutch mechanism is disengaged from the connecting member 3, the limit between the handle 1 and the connecting member 3 is cancelled, and the handle 1 and the connecting member 3 are not linked. In a specific implementation, the clutch mechanism may have an engagement position in limit cooperation with the connecting member 3 and a separation position disengaged from the connecting member 3. The clutch mechanism can be switched between the engagement position and the separation position. When the clutch mechanism is in the engagement position, the handle 1 and the connecting member 3 are linked; when the clutch mechanism is in the separation position, the handle 1 and the connecting member 3 are not linked.

[0048] The door lock provided by the embodiment of the present invention has a clutch mechanism arranged on the handle 1. The connecting member 3 is installed inside the handle shaft 11 and can rotate relative to the handle shaft 11. The clutch mechanism is used for limit cooperation or disengagement with the connecting member 3. When the clutch mechanism is disengaged from the connecting member 3, the handle 1 and the connecting member 3 are not linked, and when either the handle 1 or the connecting member 3 rotates, it will not drive the other to rotate together; when the clutch mechanism is in limit cooperation with the connecting member 3, the handle 1 and the connecting member 3 are linked, and when either the handle 1 or the connecting member 3 rotates, it will drive the other to rotate together. In this way, when it is necessary to drive the transmission shaft 10 to rotate through the handle 1 to unlock the door, the clutch mechanism can be made to be in limit cooperation with the connecting member 3. At this time, the handle 1 and the connecting member 3 are linked. By rotating the handle 1, the connecting member 3 can be driven to rotate, and then the transmission shaft 10 installed inside the connecting member 3 can be driven to rotate, so as to achieve the purpose of unlocking the door; when it is necessary to drive the transmission shaft 10 to rotate through the driving device to unlock the door, the clutch mechanism can be made to be disengaged from the connecting member 3. At this time, the handle 1 and the connecting member 3 are not linked. The driving device drives the transmission shaft 10 and the connecting member 3 to rotate, and the unlocking purpose is achieved through the rotation of the transmission shaft 10. At the same time, the rotation of the connecting member 3 will not drive the handle 1 to rotate together, so as to achieve the purpose that the handle 1 remains stationary when the transmission shaft 10 is driven to rotate through the driving device, which is beneficial to improving the user experience.

[0049] In a specific implementation, the transmission shaft 10 can be a square shaft, that is, the transmission shaft can adopt a shaft with a square cross-sectional shape. A square shaft hole for installing the square shaft can be provided on the connecting member 3. The shapes of the square shaft and the square shaft hole are adapted to each other. The square shaft extends into the square shaft hole of the connecting member 3, so that when the transmission shaft 10 rotates, the connecting member 3 can be driven to be linked, and when the connecting member 3 rotates, the transmission shaft 10 can also be driven to be linked. Of course, the transmission shaft 10 is not limited to a square shaft, that is, the cross-sectional shape of the transmission shaft 10 is not limited to a square, and can also be other shapes, such as a rectangle, a pentagon, a racetrack shape, etc., as long as it can ensure that the transmission shaft 10 extends into the inside of the connecting member 3, and when either the transmission shaft 10 or the connecting member 3 rotates, it can drive the other to rotate together.

[0050] In a specific implementation, the driving device may include a motor 8, and the output end of the motor 8 is connected to the transmission shaft 10, so that the motor 8 drives the transmission shaft 10 to rotate to unlock; specifically, the transmission shaft can pass through the motor 8, that is, the transmission shaft can be inserted into the inside of the motor 8, and part of the shaft section of the transmission shaft extends from the inside of the motor 8 and extends into the inside of the connector 3. In this way, when the motor 8 rotates, the transmission shaft 10 can be driven to rotate, and when one of the transmission shaft 10 and the connector 3 rotates, the other can be driven to rotate together. Of course, the driving device is not limited to only including a motor, and the driving device can also adopt a driving method combining a motor and a gear. The driving device is not limited to an electric method, and can also adopt a pneumatic method, a hydraulic method, a magnetic bearing method, etc., as long as it can drive the transmission shaft 10 to rotate.

[0051] In a specific implementation, the handle 1 may include a handle body and a handle shaft 11 connected to the handle body, one end of the handle shaft 11 along the axial direction is connected to the handle body, and the other end of the handle shaft 11 along the axial direction is cantilevered relative to the handle body; a handle hole 21 is provided on the panel 2, and one end of the handle shaft 11 away from the handle body passes through the handle hole 21, and a nut 7 and other structures are installed on the end of the handle shaft 11 passing through the handle hole 21, so as to limit the handle shaft 11 in the handle hole 21, prevent the handle shaft 11 from slipping out of the handle hole 21 in the opposite direction of the insertion direction, and enable the handle shaft 11 to rotate in the handle hole 21, that is, the handle 1 can rotate relative to the panel 2 with the handle shaft 11 as the axis. Specifically, the handle body may include a handle cover 12 and a handle base 13, the handle cover 12 and the handle base 13 are connected to each other, the handle shaft 11 may be connected to the side of the handle base 13 away from the handle cover 12, and the handle shaft 11 may be integrally formed with the handle base 13.

[0052] In some embodiments, reference Figure 3 and Figure 4 As shown, the handle shaft 11 is provided with a central shaft hole for installing the connector 3, that is, the handle shaft 11 is a hollow shaft, the connector 3 is installed in the central shaft hole of the handle shaft 11, and can rotate relative to the handle shaft 11 around the central axis of the handle shaft 11. The connector 3 is provided with a mounting shaft hole for installing the transmission shaft 10, specifically, the transmission shaft 10 can be a square shaft, the mounting shaft hole can be a square shaft hole adapted to the shape of the square shaft, the square shaft is installed in the square shaft hole of the connector 3, so that the transmission shaft 10 can drive the connector 3 to rotate by the cooperation of the square shaft and the square shaft hole, and the connection member 3 can also drive the transmission shaft 10 to rotate.

[0053] In some embodiments, reference Figure 3 and Figure 4As shown, a turntable 5 is installed at one end of a handle rotating shaft 11 passing through a handle hole 21. The turntable 5 is sleeved on the handle rotating shaft 11 and is in limit fit with the handle rotating shaft 11. Specifically, a through hole for the end of the handle rotating shaft 11 to pass through can be provided at the central part of the turntable 5, so that the turntable 5 can be sleeved on the handle rotating shaft 11 through this through hole. A protrusion 51 protruding towards the center of the through hole is provided at the through hole of the turntable 5. A clamping groove 111 is provided at one end of the handle rotating shaft 11 passing through the handle hole 21, and the clamping groove 111 penetrates the end face of one end of the handle rotating shaft 11 passing through the handle hole 21. When the turntable 5 and the handle rotating shaft 11 are assembled, the turntable 5 is sleeved on the handle rotating shaft 11, and the protrusion 51 at the through hole of the turntable 5 is embedded in the clamping groove 111 of the handle rotating shaft 11, realizing the limit fit between the turntable 5 and the handle rotating shaft 11, so that the turntable 5 can rotate with the handle rotating shaft 11.

[0054] To fix the turntable 5 on the handle rotating shaft 11, referring to Figure 3 and Figure 4 As shown, a nut 7 is installed at one end of the handle rotating shaft 11 passing through the handle hole 21. The nut 7 is threadedly connected to the handle rotating shaft 11 to fix the turntable 5 on the handle rotating shaft 11. Specifically, an external thread is provided on the outer peripheral surface of one end of the handle rotating shaft 11 passing through the handle hole 21. The nut 7 is sleeved on the handle rotating shaft 11, and the internal thread on the nut 7 is threadedly connected to the external thread on the handle rotating shaft 11 to fix the turntable 5 on the handle rotating shaft 11. To prevent the nut 7 from loosening, a stop washer 6 can be provided between the nut 7 and the turntable 5. During specific assembly, the turntable 5, the stop washer 6, and the nut 7 are sequentially sleeved on the handle rotating shaft 11.

[0055] In some embodiments, referring to Figure 3 and Figure 4 As shown, a handle spring 4 is sleeved on the shaft section of the handle rotating shaft 11 passing through the handle hole 21. The handle spring 4 is elastically supported between the surface of the panel 2 facing the turntable 5 and the turntable 5. With such a setting, the elastic installation of the handle rotating shaft 11 on the panel 2 is realized by using the handle spring 4, which is beneficial to ensuring the reliability of the rotational connection between the handle rotating shaft 11 and the panel 2, and enabling the handle rotating shaft 11 to rotate more smoothly relative to the panel 2.

[0056] In some embodiments, referring to Figures 1 to 4As shown, the panel 2 has a first surface and a second surface which are oppositely arranged. The handle hole 21 penetrates through the first surface and the second surface of the panel 2. One end of the handle rotating shaft 11 of the handle 1 passes through the handle hole 21 from the first surface of the panel 2 and extends to the second surface of the panel 2. The motor 8 can be installed on the second surface of the panel 2 and is located at a position corresponding to the handle hole 21. Specifically, the motor 8 can be fixed on the panel 2 by screws 9. A motor shaft on the motor 8 can be provided on the same axis as the handle rotating shaft 11. An installation hole for the transmission shaft 10 to pass through is formed on the motor shaft. One end of the transmission shaft 10 in the axial direction passes through the installation hole and extends into the installation shaft hole of the connecting piece 3 located inside the handle rotating shaft 11. And the transmission shaft 10 can be a square shaft. The installation hole on the motor shaft is set as a square installation hole adapted to the shape of the square shaft. Through the cooperation of the square shaft and the square installation hole, the motor 8 can drive the transmission shaft 10 to rotate to achieve the purpose of unlocking.

[0057] In some embodiments, referring to Figures 3 to 6 As shown, the handle 1 includes a handle body. The clutch mechanism includes a sliding member which is slidably arranged on the handle body. A limiting convex portion is arranged on the sliding member, and a limiting groove is arranged on the connecting piece 3. The limiting convex portion is inserted into the limiting groove, and the clutch mechanism and the connecting piece 3 are in limiting cooperation. When the limiting convex portion disengages from the limiting groove, the clutch mechanism and the connecting piece 3 are disengaged. That is to say, when the limiting convex portion is inserted into the limiting groove, the clutch mechanism is in the engaged position of limiting cooperation with the connecting piece 3. When the limiting convex portion disengages from the limiting groove, the clutch mechanism is in the separated position of disengaging from the connecting piece 3. It is arranged in this way so that by sliding the sliding member on the handle 1, the clutch mechanism can be switched between the engaged position and the separated position.

[0058] In a specific implementation, the connecting piece 3 can be a cylindrical connecting piece, and the central through hole of the handle rotating shaft 11 can be a circular hole to facilitate the smoother rotation of the connecting piece 3 inside the handle rotating shaft 11. Specifically, a limiting groove can be arranged on the outer peripheral surface of the connecting piece 3, and the limiting groove extends along the radial direction of the connecting piece 3 so that the limiting convex portion can be inserted into the limiting groove along the radial direction of the connecting piece 3, so as to ensure the reliability of the limiting cooperation between the connecting piece 3 and the sliding member.

[0059] Of course, in a specific implementation, it is not limited to arranging the limiting convex portion on the sliding member and the limiting groove on the connecting piece 3. The limiting groove can also be arranged on the sliding member and the limiting convex portion can be arranged on the connecting piece 3, and the purpose of clutch can also be achieved through the cooperation of the limiting convex portion and the limiting groove.

[0060] In some embodiments, referring to Figures 3 to 9As shown in the figure, the sliding member includes a driving slider 15 and a driven slider 16. A first rack portion 151 is provided on the driving slider 15, and a second rack portion 161 is provided on the driven slider 16. A gear 17 is provided between the first rack portion 151 and the second rack portion 161. The driving slider 15 drives the driven slider 16 to slide through the gear 17. The limiting convex portion includes a first limiting convex portion 152 provided on the driving slider 15 and a second limiting convex portion 162 provided on the driven slider 16. The first limiting convex portion 152 and the second limiting convex portion 162 are arranged oppositely. The limiting groove is provided on the outer peripheral surface of the connecting member 3. The first limiting convex portion 152 and the second limiting convex portion 162 are respectively inserted into the limiting groove from both sides of the limiting groove in an opposite direction, or are disengaged from the limiting groove in a back-to-back manner.

[0061] With such an arrangement, when the driving slider 15 slides relative to the handle 1, the first rack portion 151 on the driving slider 15 will drive the gear 17 to rotate. The gear 17 will drive the driven slider 16 to move through the second rack portion 161 on the driven slider 16, and the sliding directions of the driving slider 15 and the driven slider 16 are opposite. Thus, under the transmission of the gear-rack structure, the first limiting convex portion 152 on the driving slider 15 and the second limiting convex portion 162 on the driven slider 16 gradually approach or move away from each other, so as to be inserted into the limiting groove from both sides of the limiting groove when gradually approaching, and to be disengaged from the limiting groove from both sides of the limiting groove when gradually moving away. In this way, the connecting member 3 is limited from both sides of the connecting member 3, so that the force on the connecting member 3 is more balanced, thereby ensuring the reliability of the limit fit between the clutch mechanism and the connecting member 3. In addition, by providing two sliders, namely the driving slider 15 and the driven slider 16, and transmitting power between the driving slider 15 and the driven slider 16 through a gear-rack structure, with such an arrangement, compared with only providing one slider, the driving slider 15 and the driven slider 16 only need to move half of the stroke respectively to achieve the limit fit between the clutch mechanism and the connecting member 3.

[0062] In a specific implementation, a limiting groove can be provided on the outer peripheral surface of the connecting member 3, and the limiting groove penetrates through the connecting member 3 along the radial direction of the connecting member 3, so that the limiting groove forms two socket ends along the radial direction of the connecting member 3. The first limiting convex portion 152 and the second limiting convex portion 162 are respectively inserted into the limiting groove from the two socket ends of the limiting groove, so as to better ensure the reliability of the limit fit between the clutch mechanism and the connecting member 3.

[0063] In some embodiments, referring to Figure 5 、 Figure 6 、 Figure 7 and Figure 9As shown, the active slider 15 is a long strip-shaped slider. First rack portions 151 are respectively provided on two opposite side surfaces of the active slider 15, and a first limiting convex portion 152 is provided at one end of the active slider 15 facing the driven slider 16; the driven slider 16 has a U-shaped structure, and second rack portions 161 are respectively provided on inner wall surfaces of two opposite side portions of the driven slider 16, and a second limiting convex portion 162 is provided on an inner wall surface of the bottom of the driven slider 16; the first rack portions 151 on two sides of the active slider 15 respectively correspond to the second rack portions 161 on two sides of the driven slider 16 one by one and are in meshing transmission through a gear 17. Such a setting is to ensure the smoothness and reliability of the transmission through the gear-rack structure.

[0064] It should be noted that in specific implementation, the sliding member is not limited to including two sliders, namely the active slider 15 and the driven slider 16. It is also feasible to include only one slider.

[0065] In some embodiments, referring to Figures 3 to 6 As shown, the clutch mechanism further includes a key 14, and the key 14 is movably arranged on the handle main body; a first mating inclined surface 141 is provided on the key 14, and a second mating inclined surface 153 is provided on the sliding member. When the key 14 is pressed, the first mating inclined surface 141 and the second mating inclined surface 153 are in abutting cooperation to drive the sliding member to slide and make the limiting convex portion insert into the limiting groove. Such a setting is to drive the sliding member to slide relative to the handle 1 by pressing the key 14, so as to realize the limiting cooperation between the clutch mechanism and the connecting member 3, with a simple structure and convenient operation.

[0066] In specific implementation, referring to Figure 5 、 Figure 6 、 Figure 8 and Figure 10 As shown, a first mating inclined surface 141 can be provided on the key 14, and a second mating inclined surface 153 can be provided on the active slider 15. When the key 14 is pressed, the first mating inclined surface 141 of the key 14 will exert a downward acting force on the second mating inclined surface 153 of the active slider 15, thereby driving the active slider 15 to slide downward relative to the handle 1. At the same time, under the transmission of the gear-rack structure, the driven slider 16 will slide upward relative to the handle 1, and the first limiting convex portion 152 on the active slider 15 will insert downward into the limiting groove of the connecting member 3, and the second limiting convex portion 162 on the driven slider 16 will insert upward into the limiting groove of the connecting member 3, so as to realize the limiting cooperation between the clutch mechanism and the connecting member 3. Such a setting, compared with only setting one slider, can enable both the active slider 15 and the driven slider 16 to only need to move half of the stroke to realize the limiting cooperation between the clutch mechanism and the connecting member 3. In this way, the pressing stroke of the key 14 can be reduced, and thus the moving space required for the key 14 to move can be reduced.

[0067] It should be noted that in a specific implementation, the button 14 can be installed on the handle base 13, and a part of the button 14 is exposed from the surface of the handle base 13 on the side facing away from the handle cover 12 to form a pressing part. During specific operation, the user holds the handle and applies a force towards the handle cover to the pressing part, so as to press down the button 14. By reducing the pressing stroke of the button 14, the holding space on the back of the handle can be increased, facilitating the user to hold the handle more smoothly.

[0068] In addition, the button 14 also has the function of preventing unlocking through the cat's eye, which can effectively improve the security of the door lock. Specifically, when it is necessary to drive the transmission shaft 10 to rotate through the handle 1 to unlock, it is necessary to press the button 14 so that the limiting convex part is inserted into the limiting groove, realizing the limiting cooperation between the clutch mechanism and the connecting part 3. In this way, when the handle 1 is rotated, the connecting part 3 can be driven to rotate, and then the transmission shaft 10 installed in the connecting part 3 can be driven to rotate, so as to achieve the purpose of unlocking by rotating the transmission shaft 10; if the handle 1 is rotated alone, the connecting part 3 will not be driven to rotate together, so the transmission shaft 10 cannot be driven to rotate to unlock. In this way, when an illegal element wants to insert a tool through the cat's eye to rotate the handle 1 to unlock, rotating the handle 1 alone cannot unlock, thus improving the security of the door lock.

[0069] In some embodiments, referring to Figure 5 and Figure 6 As shown, the handle body includes a handle cover 12 and a handle base 13. The handle cover 12 and the handle base 13 are connected to each other to form an installation cavity, and the sliding part is installed in the installation cavity. The clutch mechanism further includes a first elastic reset member 18. The first elastic reset member 18 is elastically supported between one of the handle cover 12 and the handle base 13 and the sliding part to drive the sliding part to reset and make the limiting convex part disengage from the limiting groove. With such a setting, when the sliding part slides along the direction in which the limiting convex part is inserted into the limiting groove, the first elastic reset member 18 will deform and store elastic potential energy; when the button 14 is released, the first elastic reset member 18 will release the elastic potential energy, drive the sliding part to reset, and make the limiting convex part disengage from the limiting groove, thereby realizing the reset of the clutch mechanism.

[0070] In a specific implementation, the first elastic reset member 18 can adopt a reset spring. Of course, other elastic reset members can also be adopted, such as a reset spring sheet, etc. Specifically, the reset spring can be arranged between the active slider 15 and the handle cover 12. The active slider 15 is provided with a limiting convex column. One end of the reset spring is sleeved on the limiting convex column, and the handle cover 12 is provided with a support rib opposite to the limiting convex column. The other end of the reset spring is supported on the support rib. The number of the first elastic reset members 18 can specifically be one, two or more.

[0071] In some embodiments, referring to Figure 5 and Figure 6As shown, the button 14 is installed on the handle base 13. An installation hole 131 for part of the button 14 to expose is provided on the handle base 13, so as to facilitate the user to press the part of the button 14 that exposes from the installation hole 131. The clutch mechanism further includes a second elastic reset member 19. The second elastic reset member 19 is elastically supported between the button 14 and the handle cover 12 to drive the button 14 to reset. With such a setting, when the button 14 is released, the button 14 will reset under the elastic force of the second elastic reset member 19.

[0072] In a specific implementation, the second elastic reset member 19 can adopt a reset spring. Of course, other elastic reset members can also be adopted, such as a reset spring piece, etc. Specifically, a limit convex column is provided on the surface of the button 14 facing the handle cover 12. One end of the reset spring is sleeved on the limit convex column, and a limit groove opposite to the limit convex column is provided on the handle cover 12. The other end of the reset spring is supported on the bottom wall of the limit groove. The number of the second elastic reset members 19 can specifically be one, two or more.

[0073] In some embodiments, referring to Figure 5 and Figure 6 As shown, the sliding member has a first side facing the handle cover 12 and a second side facing the handle base 13. The first side and the second side are arranged in opposite directions, and at least one of the first side and the second side is provided with a recessed portion recessed towards the other side. With such a setting, the contact area between the sliding member and the handle cover 12 and between the sliding member and the handle base 13 can be reduced, so as to reduce the friction force received by the sliding member when the sliding member moves.

[0074] In a specific implementation, a sliding groove can be provided on the surface of the handle cover 12 facing the handle base 13. The active slider 15 and the driven slider 16 are slidably arranged in the sliding groove. The active slider 15 has a first side facing the handle cover 12 and a second side facing the handle base 13. The first side and the second side are arranged in opposite directions, and first recessed portions 154 recessed towards each other are respectively provided on the first side and the second side. The driven slider 16 has a first side facing the handle cover 12 and a second side facing the handle base 13. The first side and the second side are arranged in opposite directions, and second recessed portions 163 recessed towards each other are respectively provided on the first side and the second side.

[0075] It should be noted that in the specific implementation, the side of the active slider 15 provided with the recessed portion and the side provided with the first rack portion 151 are different sides, and the side of the driven slider 16 provided with the recessed portion and the side provided with the second rack portion 161 are different sides. Exemplarily, the active slider 15 is a long strip-shaped slider, and the first rack portions 151 are respectively provided on two opposite sides of the active slider 15, and the recessed portions are respectively provided on the other two opposite sides of the active slider 15. The driven slider 16 has a U-shaped structure, the second rack portions 161 are provided on the inner wall surfaces of two opposite side portions of the driven slider 16, and the recessed portions are respectively provided on two opposite U-shaped surfaces of the driven slider 16.

[0076] In the specific implementation, referring to Figure 5 and Figure 6 As shown, the handle cover 12 and the handle base 13 can be set as rectangular structures extending in the height direction, and the handle cover 12 and the handle base 13 are connected to each other in the horizontal direction. For example, the handle cover 12 and the handle base 13 are connected to each other by horizontally arranged screws; the active slider 15 can be arranged in the upper part of the installation cavity formed by the connection of the handle cover 12 and the handle base 13, the driven slider 16 can be arranged in the lower part of the installation cavity formed by the connection of the handle cover 12 and the handle base 13, the button 14 is arranged on the upper part of the handle base 13, and an inclined surface fit is adopted between the button 14 and the active slider 15; the first rack portions 151 are respectively arranged on both sides of the active slider 15, the second rack portions 161 are respectively arranged on both sides of the driven slider 16, and the first rack portion 151 and the second rack portion 161 are driven by a gear 17; a first limiting convex portion 152 is arranged at the lower part of the active slider 15, a second limiting convex portion 162 is arranged at the upper part of the driven slider 16, the connecting member 3 is installed inside the handle rotating shaft 11, and one end portion of the connecting member 3 in the axial direction extends to the area between the first limiting convex portion 152 and the second limiting convex portion 162, and a limiting groove is arranged at this end portion.

[0077] When the button 14 is pressed, the first limiting convex portion 152 of the active slider 15 and the second limiting convex portion 162 of the driven slider 16 gradually approach and are inserted into the limiting groove. At this time, when the handle 1 is rotated, the connecting member 3 can be driven to rotate, thereby driving the transmission shaft 10 to rotate; when the button 14 is released, the first limiting convex portion 152 of the active slider 15 and the second limiting convex portion 162 of the driven slider 16 gradually move away and withdraw from the limiting groove of the connecting member 3. At this time, when the handle 1 is rotated, the connecting member 3 will not rotate, so the transmission shaft 10 will not be driven to rotate to unlock, thereby achieving the purpose of preventing cat's-eye unlocking and improving the security of the door lock; when the motor 8 drives the transmission shaft 10 and the connecting member 3 to rotate for unlocking, the handle 1 will not be driven to rotate either, thereby improving the user experience.

[0078] It should be noted that in this text, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.

[0079] The above are only specific embodiments of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments described herein, but rather will conform to the broadest scope consistent with the principles and novel features of the present invention as described herein.

Claims

1. A door lock, characterized in that: include: panel; A handle, wherein the handle is provided with a handle shaft, and the handle is rotatably mounted on the panel via the handle shaft; A connecting member, installed inside the handle shaft and capable of rotating relative to the handle shaft; A driving device, mounted on the panel; A transmission shaft connected to the driving device and extending into the interior of the connecting member so as to rotate under the drive of the driving device or the handle and to be linked with the connecting member; Wherein, a clutch mechanism is arranged on the handle, and the clutch mechanism is used for limiting cooperation or disengagement with the connecting member.

2. The door lock according to claim 1, characterized in that: The handle comprises a handle body, and the clutch mechanism comprises a sliding member, and the sliding member is slidably arranged on the handle body; A limiting protrusion is provided on one of the sliding member and the connecting member, and a limiting groove is provided on the other. When the limiting protrusion is inserted into the limiting groove, the clutch mechanism and the connecting member are limitedly matched; when the limiting protrusion is removed from the limiting groove, the clutch mechanism and the connecting member are disengaged.

3. The door lock according to claim 2, characterized in that: The sliding member includes an active slider and a driven slider, the active slider is provided with a first rack portion, the driven slider is provided with a second rack portion, a gear is provided between the first rack portion and the second rack portion, and the active slider drives the driven slider to slide through the gear; The limiting protrusion includes a first limiting protrusion arranged on the active slider, and a second limiting protrusion arranged on the driven slider, the first limiting protrusion and the second limiting protrusion are arranged opposite to each other, the limiting groove is arranged on the outer peripheral surface of the connecting member, the first limiting protrusion and the second limiting protrusion are respectively inserted into the limiting groove from both sides of the limiting groove facing each other, or are removed from the limiting groove in opposite directions.

4. The door lock according to claim 3, characterized in that: The active slider is a long strip-shaped slider, the two opposite sides of the active slider are respectively provided with the first rack parts, and the end of the active slider facing the driven slider is provided with the first limiting convex part; The driven slider is in a U-shaped structure, the second rack parts are respectively arranged on the inner wall surfaces of the two opposite side parts of the driven slider, and the second limiting protrusion is arranged on the inner wall surface of the bottom of the driven slider; The first rack parts on both sides of the active slider correspond to the second rack parts on both sides of the driven slider one by one and are meshed and transmitted through the gear.

5. The door lock according to claim 2, characterized in that: The clutch mechanism further comprises a button, and the button is movably arranged on the handle body; The button is provided with a first matching bevel, and the sliding member is provided with a second matching bevel. When the button is pressed, the first matching bevel and the second matching bevel abut against each other to drive the sliding member to slide and insert the limiting protrusion into the limiting groove.

6. The door lock according to claim 5, characterized in that: The handle body comprises a handle cover and a handle base, wherein the handle cover and the handle base are connected to each other to form a mounting cavity, and the sliding member is mounted in the mounting cavity; The clutch mechanism also includes a first elastic reset member, which is elastically supported between the sliding member and one of the handle cover and the handle base to drive the sliding member to reset and make the limiting protrusion escape from the limiting groove.

7. The door lock according to claim 6, characterized in that: The button is mounted on the handle base, and the handle base is provided with a mounting hole through which a portion of the button is exposed; The clutch mechanism further includes a second elastic reset member, which is elastically supported between the button and the handle cover to drive the button to reset.

8. The door lock according to claim 7, characterized in that: The sliding member has a first side surface facing the handle cover and a second side surface facing the handle base, the first side surface and the second side surface are arranged opposite to each other, and at least one of the first side surface and the second side surface is provided with a recessed portion recessed toward the other side.

9. The door lock according to any one of claims 1 to 8, characterized in that: A handle hole is provided on the panel, and one end of the handle shaft along the axial direction passes through the handle hole; A rotating disk is installed at one end of the handle shaft passing through the handle hole, and the rotating disk is sleeved on the handle shaft and is limitedly matched with the handle shaft; A nut is installed at one end of the handle shaft passing through the handle hole, and the nut is threadedly connected with the handle shaft to fix the turntable on the handle shaft.

10. The door lock according to claim 9, characterized in that: A handle spring is sleeved on the shaft section of the handle shaft passing through the handle hole, and the handle spring is elastically supported between a side surface of the panel facing the turntable and the turntable.

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