Transmission assembly for door lock, door lock and door

Abstract

The utility model belongs to the technical field of locks, and particularly discloses a transmission assembly for a door lock, the door lock and a door. The transmission assembly for the door lock comprises a transmission shaft, a handle and a clutch piece, wherein the input end of the transmission shaft is connected with a driving piece of the door lock; the clutch piece is arranged at the output end of the transmission shaft; the handle is connected with the transmission shaft through the clutch piece; when the handle drives the lock body of the door lock to be unlocked, the clutch piece is in a combined state, and the transmission shaft responds to the handle to move. And when the driving piece drives the lock body to unlock, the clutch piece is kept in a separated state, and the handle does not respond to the movement of the transmission shaft. When the transmission assembly for the door lock is automatically unlocked, the handle cannot be linked.

Description

[0001] This application claims priority and benefits of the Chinese patent application with application number 202311814324.4 and application date December 26, 2023. The entire contents of the above-mentioned Chinese patent application are hereby incorporated by reference into this application. Technical Field

[0002] The utility model belongs to the technical field of locks, and in particular relates to a transmission component for a door lock, a door lock and a door. Background Art

[0003] In the door lock in the related art, when the lock body is unlocked by controlling the motor, the handle may be linked together, which affects the user experience. Summary of the invention

[0004] The utility model aims to solve one of the technical problems in the related art at least to a certain extent. To this end, an embodiment of the utility model provides a transmission assembly for a door lock, and when the door lock is automatically unlocked, the handle will not be linked.

[0005] The embodiment of the utility model also provides a door lock.

[0006] The embodiment of the utility model further provides a door.

[0007] The transmission assembly for the door lock in this embodiment includes a transmission shaft, a handle and a clutch, wherein: the input end of the transmission shaft is connected to the driving member of the door lock; the clutch is arranged at the output end of the transmission shaft; the handle is connected to the transmission shaft through the clutch; wherein, when the lock body of the door lock is driven to unlock by the handle, the clutch is in a coupled state, and the transmission shaft responds to the movement of the handle; when the lock body is driven to unlock by the driving member, the clutch remains in a separated state, and the handle does not respond to the movement of the transmission shaft.

[0008] In this embodiment, the clutch member includes a first combining portion and a second combining portion, the first combining portion is connected to the output end of the transmission shaft, and the second combining portion is connected to the handle, wherein when the lock body is driven to unlock by the handle, the working angle of the second combining portion is greater than a preset angle, and the clutch member is in a coupled state; when the lock body is driven to unlock by the driving member, the working angle of the first combining portion is less than the preset angle, and the clutch member is in a separated state.

[0009] In this embodiment, the first coupling portion of the clutch has a first protrusion, and the second coupling portion of the clutch has a second protrusion; when the clutch is in a disengaged state, the first protrusion and the second protrusion are spaced apart in the circumferential direction of the transmission shaft; when the clutch is in a coupled state, the first protrusion and the second protrusion abut against each other in the circumferential direction of the transmission shaft.

[0010] In this embodiment, a plurality of first protrusions are evenly spaced on the first coupling portion, and a plurality of second protrusions are evenly spaced on the second coupling portion, wherein when the clutch is in a disengaged state, the plurality of first protrusions and the plurality of second protrusions are spaced one-to-one in the circumferential direction of the transmission shaft; when the clutch is in a coupled state, the plurality of first protrusions and the plurality of second protrusions are abutted one-to-one in the circumferential direction of the transmission shaft.

[0011] In this embodiment, the transmission assembly further includes: the second coupling portion is provided with a first groove, the second protrusion is arranged on a side wall of the first groove, and the first protrusion is located in the first groove.

[0012] In this embodiment, the transmission assembly further includes: a driving wheel, which is connected to the handle; the clutch member includes a driven wheel, and the driving wheel is used to drive the driven wheel to rotate around a fixed axis.

[0013] In this embodiment, the driving wheel includes a plurality of driving teeth, and the driven wheel includes a plurality of driven teeth. A second groove is provided on the side of the driving wheel away from the handle. The plurality of driving teeth are evenly spaced along the circumference of the driving wheel on the side wall of the second groove, and the plurality of driven teeth are evenly spaced along the circumference of the driven wheel on the outer wall of the driven wheel. The driven wheel is located in the second groove, and the driving teeth and the driven teeth are meshed with each other.

[0014] In this embodiment, the transmission assembly further includes: an elastic reset member, the elastic reset member is connected to the driving wheel, and the elastic reset member is used to drive the driving wheel to reset.

[0015] In this embodiment, the elastic return member is a torsion spring having two protruding ends. Two limiting posts are spaced apart on the side of the driving wheel facing the handle, and the two protruding ends are in one-to-one contact with the two limiting posts.

[0016] In this embodiment, the transmission assembly further includes a cover plate, which is located between the elastic return member and the driving wheel, and is used to limit the elastic return member. A first avoidance hole is provided on the cover plate corresponding to the limiting column.

[0017] In this embodiment, the fixed shaft is arranged on the side of the cover plate facing the driving wheel, a second avoidance hole is arranged on the driving wheel corresponding to the fixed shaft, and the fixed shaft passes through the second avoidance hole and is connected to the driven wheel.

[0018] The door lock in this embodiment includes the above-mentioned transmission assembly for the door lock.

[0019] The door in this embodiment includes the door lock mentioned above. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a transmission assembly for a door lock according to an embodiment of the utility model.

[0021] Figure 2 This is a schematic diagram of a partial explosion structure of a transmission assembly for a door lock according to an embodiment of the utility model. Figure 1 .

[0022] Figure 3 This is a schematic diagram of a partial explosion structure of a transmission assembly for a door lock according to an embodiment of the utility model. Figure 2 .

[0023] Figure 4 It is a side view structural diagram of the transmission component part of the door lock of an embodiment of the utility model.

[0024] Figure 5 yes Figure 4 Cross-section view at AA in the middle.

[0025] Reference numerals:

[0026] 1. Transmission shaft; 2. Clutch; 21. First joint; 211. First protrusion; 22. Second joint; 221. Second protrusion; 222. First groove; 23. Driven wheel; 3. Handle; 4. Driving wheel; 41. Driving tooth; 42. Second groove; 43. Limiting column; 44. Second avoidance hole; 45. Connecting column; 5. Panel; 6. Bearing; 7. Closing plate; 8. Back plate; 9. Driving member; 10. Lock body; 11. Elastic reset member; 12. Cover plate; 121. First avoidance hole; 13. Fixed shaft. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.

[0028] In this embodiment, if Figures 1 to 3As shown, the transmission assembly for the door lock includes a transmission shaft 1, a handle 3 and a clutch 2, wherein: the input end of the transmission shaft 1 is connected to the driving member 9 of the door lock; the clutch 2 is arranged at the output end of the transmission shaft 1; and the handle 3 is connected to the transmission shaft 1 through the clutch 2. When the lock body 10 of the door lock is unlocked by driving the handle 3, the clutch 2 is in a combined state, and the transmission shaft 1 responds to the movement of the handle 3; when the lock body 10 is unlocked by driving the driving member 9, the clutch 2 remains in a separated state, and the handle 3 does not respond to the movement of the transmission shaft 1.

[0029] For example, the transmission shaft 11 is a square shaft, and the driving member 9 includes a motor. The middle of the square shaft is connected to the output end of the motor, and one end of the square shaft is connected to the lock body 10. When the motor drives the square shaft to rotate, the lock body 10 can be unlocked by driving the square shaft. The connection method between the square shaft, the motor, and the lock body 10 is conventional prior art and will not be described in detail here. Specifically, the clutch member 22 is connected to the end of the square shaft away from the lock body 10.

[0030] In some embodiments, the transmission assembly for the door lock includes at least one handle 3 and at least one clutch 2. For example, when both the handle 3 and the clutch 2 are provided with one, the handle 3 is connected to the transmission shaft 1 through the clutch 2. When both the handle 3 and the clutch 2 are provided with two, the inner door lock and the outer door lock are provided with one handle 3 respectively, and the two handles 3 can be connected to the transmission shaft 1 through one clutch 2 respectively. The number of handles 3 and clutch 2 can be set as needed, and is not used to limit the present invention. In other embodiments, the transmission assembly for the door lock may also include a handle 3 and multiple clutch members 2. For example, two clutch members 2 are provided, the handle 3 is connected to the transmission shaft 1 through a clutch member 2, and the driving member 9 is connected to the transmission shaft 1 through another clutch member 2. When the lock body 10 is driven to unlock by the driving member 9, the clutch member 2 connected to the driving member 9 is in a coupled state, and the clutch member 2 connected to the handle 3 is in a separated state; when the lock body 10 is driven to unlock by the handle 3, the clutch member 2 connected to the handle 3 is in a coupled state, and the clutch member 2 connected to the driving member 9 is in a separated state.

[0031] In other embodiments, the transmission shaft 1 for transmission unlocking is a square shaft, and the transmission shaft 1 for changing the state of the clutch 2 can be a lead screw, and a bayonet is threadedly connected to the lead screw. When the lock body 10 is driven to unlock by the driving member 9, the square shaft drives the lead screw to rotate, and then the lead screw drives the bayonet to move away from the clutch 2, so that the clutch 2 remains in the clutch state. After the lock body 10 is unlocked and restored to the locked state, the square shaft drives the lead screw to rotate, and then the lead screw drives the bayonet to move close to the clutch 2, so that the clutch 2 is in the engaged state.

[0032] It can be understood that the handle 3 is connected to the drive shaft 1 through the clutch 2. When the lock body 10 is unlocked by driving the handle 3, the clutch 2 is in a coupled state, and the drive shaft 1 responds to the movement of the handle 3, so that the lock body 10 can be unlocked by driving the drive shaft 1 through the handle 3; when the lock body 10 is unlocked by driving the drive shaft 1 through the driving member 9, the clutch 2 remains in a separated state, and the handle 3 does not respond to the movement of the drive shaft 1, so that the user experience will not be affected when the lock is automatically unlocked because the handle 3 follows the movement of the drive shaft 1.

[0033] In this embodiment, if Figures 1 to 3 As shown, the clutch 2 includes a first coupling portion 21 and a second coupling portion 22, the first coupling portion 21 is connected to the output end of the transmission shaft 1, and the second coupling portion 22 is connected to the handle 3, wherein when the lock body 10 is driven to unlock by the handle 3, the working angle of the second coupling portion 22 is greater than the preset angle, and the clutch 2 is in a coupled state; when the lock body 10 is driven to unlock by the driving member 9, the working angle of the first coupling portion 21 is less than the preset angle, and the clutch 2 is in a separated state.

[0034] For example, the working angle of the second coupling portion 22 may be the rotation angle of the second coupling portion 22 following the rotation of the handle 3. The working angle of the first coupling portion 21 may be the rotation angle of the first coupling portion 21 following the rotation of the output end of the transmission shaft 1. Figure 4 As described above, when the preset angle is α, when the rotation angle of the first engaging portion 21 is less than α, the clutch 2 is in a disengaged state; when the rotation angle of the second engaging portion 22 is greater than α, the clutch 2 is in a coupled state. For example, the angle α may be 50°, 60°, 70°, or 80°, etc. Of course, the angle α may also be set to other angles, which are not limited here.

[0035] Specifically, the clutch 2 is in the engaged state, which means that the first engaging portion 21 can move in response to the second engaging portion 22. The clutch 2 is in the disengaged state, which means that the second engaging portion 22 does not move in response to the first engaging portion 21.

[0036] It can be understood that the clutch 2 includes a first combination portion 21 and a second combination portion 22. Since the first combination portion 21 is connected to the output end of the transmission shaft 1 and the second combination portion 22 is connected to the handle 3, when the lock body 10 is unlocked by driving the handle 3, the working angle of the second combination portion 22 is greater than the preset angle, the clutch 2 is in a combined state, and the first combination portion 21 can respond to the movement of the second combination portion 22, so that the lock body 10 can be unlocked by the clutch 2 when the handle 3 is driven to move. When the lock body 10 is unlocked by the driving member 9, the working angle of the first combination portion 21 is less than the preset angle, the clutch 2 is in a separated state, and the second combination portion 22 will not respond to the movement of the first combination portion 21, so that when the driving member 9 drives the transmission shaft 1 to move, the handle 3 can remain motionless.

[0037] In this embodiment, if Figures 2 to 4 As shown, the first coupling portion 21 of the clutch 2 has a first protrusion 211, and the second coupling portion 22 of the clutch 2 has a second protrusion 221; when the clutch 2 is in a disengaged state, the first protrusion 211 and the second protrusion 221 are spaced apart in the circumferential direction of the transmission shaft 1; when the clutch 2 is in a coupled state, the first protrusion 211 and the second protrusion 221 abut against each other in the circumferential direction of the transmission shaft 1.

[0038] Specifically, when the preset angle is α, angle α is the idle travel angle, that is, the central angle corresponding to the arc length between the first protrusion 211 and the second protrusion 221 of the lock body 10 in the locked state. Angle α must be greater than the angle at which the transmission shaft 1 drives the lock body 10 to rotate to unlock, so that the lock body 10 can be unlocked within the idle travel angle without rotating the handle 3.

[0039] It is understandable that when the clutch 2 is in a separated state, the first protrusion 211 and the second protrusion 221 are not in contact, and when the drive shaft 1 is driven by the driving member 9 to unlock the lock body 10, the first joint portion 21 and the second joint portion 22 of the clutch 2 cannot rotate synchronously, so that the clutch 2 cannot drive the handle 3 to rotate. When the clutch 2 is in a coupled state, the first protrusion 211 and the second protrusion 221 are in contact, and when the handle 3 is rotated, the first joint portion 21 and the second joint portion 22 can be driven to rotate synchronously through the cooperation of the first protrusion 211 and the second protrusion 221, so that the clutch 2 drives the transmission shaft 1 to unlock the lock body 10, so that the handle 3 will not be linked when the driving member 9 drives the unlocking, and the unlocking can be achieved by rotating the handle 3, which is conducive to improving the user experience.

[0040] In this embodiment, if Figure 2 and Figure 4 As shown, a plurality of first protrusions 211 are evenly spaced on the clutch 2, and a plurality of second protrusions 221 are evenly spaced on the clutch 2, wherein when the clutch 2 is in a disengaged state, the plurality of first protrusions 211 and the plurality of second protrusions 221 are spaced and distributed one by one in the circumferential direction of the transmission shaft 1. When the clutch 2 is in a coupled state, the plurality of first protrusions 211 and the plurality of second protrusions 221 abut one by one in the circumferential direction of the transmission shaft 1.

[0041] Specifically, a plurality of the first protrusions 211 and the second protrusions 221 are provided, and the plurality of first protrusions 211 and the second protrusions 221 correspond to each other one by one. For example, when two first protrusions 211 are provided, two second protrusions 221 are provided. The number of the first protrusions 211 and the second protrusions 221 can be set as needed and is not used to limit the present invention. The plurality of first protrusions 211 are evenly spaced along the circumference of the first joint 21, and the plurality of second protrusions 221 are evenly spaced along the circumference of the second joint 22. In the distribution direction of the plurality of first protrusions 211 and the plurality of second protrusions 221, the plurality of first protrusions 211 and the plurality of second protrusions 221 are staggered.

[0042] It should be noted that when the lock body 10 is unlocked by the handle 3, the clutch 2 is in a combined state, each second protrusion 221 and a first protrusion 211 adjacent thereto form a group, and the second protrusions 221 and the first protrusions 211 in the same group abut against each other, so that the first protrusion 211 is driven to rotate by the second protrusions 221. By providing multiple groups of first protrusions 211 and second protrusions 221, a greater torque can be transmitted, which is conducive to faster and smoother unlocking speed.

[0043] In this embodiment, if Figure 3 As shown, the transmission assembly further includes: the second coupling portion 22 is provided with a first groove 222 , the second protrusion 221 is arranged on the side wall of the first groove 222 , and the first protrusion 211 is located in the first groove 222 .

[0044] For example, the first groove 222 can be circular, the first coupling part 21 is cylindrical, the inner diameter of the first groove 222 is larger than the outer diameter of the first coupling part 21, and the first protrusion 211 and the second protrusion 221 are located in the annular space formed between the first coupling part 21 and the second coupling part 22, so that when the second coupling part 22 rotates, the first coupling part 21 can be driven to rotate through the cooperation of the first protrusion 211 and the second protrusion 221.

[0045] It can be understood that a first groove 222 is provided on the second combining portion 22, the second protrusion 221 is arranged on the side wall surface of the first groove 222, and the first protrusion 211 is located in the first groove 222, so that at least part of the first combining portion 21 can be located in the first groove 222, which is conducive to saving space and making the overall structure more compact.

[0046] In this embodiment, if Figures 2 to 5 As shown, the transmission assembly further includes a driving wheel 4 , which is connected to the handle 3 ; the clutch member 2 includes a driven wheel 23 , and the driving wheel 4 is used to drive the driven wheel 23 to rotate around the fixed axis 13 .

[0047] Specifically, the driving wheel 4 and the driven wheel 23 are connected by transmission, for example, the driving wheel 4 and the driven wheel 23 are connected by a transmission belt, a transmission chain or a transmission tooth, etc. A person skilled in the art can set the transmission form between the driving wheel 4 and the driven wheel 23 as needed, which is not limited here. The driven wheel 23 is arranged on the second coupling portion 22, for example, the driven wheel 23 and the second coupling portion 22 can be integrally formed, which is conducive to improving the strength of the clutch 2.

[0048] It can be understood that by turning the handle 3 to drive the driving wheel 4 to rotate, the driving wheel 4 drives the driven wheel 23 to rotate around the fixed axis 13, so that the clutch 2 is in a coupled state through the rotation of the driven wheel 23, and then the clutch 2 drives the transmission shaft 1 to rotate to unlock the lock body 10.

[0049] In this embodiment, if Figure 3 and Figure 5 As shown, the driving wheel 4 includes a plurality of driving teeth 41, and the driven wheel 23 includes a plurality of driven teeth. A second groove 42 is provided on the side of the driving wheel 4 away from the handle 3. The plurality of driving teeth 41 are evenly spaced along the circumference of the driving wheel 4 on the side wall of the second groove 42, and the plurality of driven teeth are evenly spaced along the circumference of the driven wheel 23 on the outer wall of the driven wheel 23. The driven wheel 23 is located in the second groove 42, and the driving teeth 41 and the driven teeth are meshed with each other.

[0050] Specifically, the side of the driving wheel 4 facing the handle 3 is connected to the handle 3. Two connecting posts 45 are arranged at intervals on the side of the driving wheel 4 facing the handle 3, and two connecting holes are arranged on the end of the handle 3 facing the driving wheel 4, and the two connecting posts 45 are inserted into the two connecting holes in a one-to-one correspondence. By providing two connecting posts 45 and cooperating with two connecting holes, the handle 3 can be prevented from rotating relative to the driving wheel 4, so that the handle 3 can drive the driving wheel 4 to rotate stably and synchronously.

[0051] For example, multiple driving teeth 41 can be distributed in a ring shape or a semi-circular shape. The number and distribution range of the driving teeth 41 can be set according to the angle at which the driving wheel 4 needs to rotate when unlocking the handle 3. Accordingly, the number of driven teeth matches the number of driving teeth 41, and the number of driving teeth 41 and driven teeth is not limited herein.

[0052] It can be understood that the driving wheel 4 and the driven wheel 23 are driven by the mutual meshing of the driving teeth 41 and the driven teeth, and the transmission is carried out by direct contact, which has high transmission efficiency, compact structure, and smoother transmission process, which is conducive to making the unlocking process smoother and improving the user experience. In addition, by setting the driven wheel 23 in the second groove 42 opened in the driving wheel 4, and by the mutual meshing of the driving teeth 41 set in the second groove 42 and the driven teeth set on the driven wheel 23, space is saved, which is conducive to making the overall structure more compact.

[0053] In this embodiment, if Figure 2 As shown, the transmission assembly further includes an elastic reset member 11, which is connected to the driving wheel 4 and is used to drive the driving wheel 4 to reset.

[0054] Specifically, Figure 2 and Figure 5 As shown, the transmission assembly also includes a panel 5, the handle 3 is rotatably connected to the panel 5, and the handle 3 and the driving wheel 4 are both rotatably arranged on the panel 5 through bearings 6, so that the handle 3 can rotate relative to the panel 5. A washer is arranged between two adjacent bearings 6, and the two bearings 6 can be limited.

[0055] In this embodiment, panel 5 can be an ordinary panel or a panel that can interact intelligently, that is, panel 5 includes multiple user interaction components, such as a display screen, control keys, a fingerprint reader, a sound hole (microphone and speaker), a keyboard, etc., to facilitate user interaction with the door lock.

[0056] It can be understood that when the handle 3 is turned to unlock, the handle 3 drives the driving wheel 4 to rotate. After unlocking, releasing the elastic reset member 11 of the handle 3 can drive the driving wheel 4 to reset, so that the handle 3 can be driven to reset by the driving wheel 4 to keep the handle 3 in the initial position.

[0057] In this embodiment, if Figure 2 As shown, the elastic reset member 11 is a torsion spring having two protruding ends. Two limiting posts 43 are arranged at intervals on one side of the driving wheel 4 facing the handle 3 , and the two protruding ends abut against the two limiting posts 43 one by one.

[0058] It can be understood that when the handle 3 is turned to drive the lock body 10 to unlock, the handle 3 drives the driving wheel 4 to rotate, and the limiting column 43 on the driving wheel 4 abuts against the torsion spring, and the torsion spring is deformed under the force. When the handle 3 is released, the driving wheel 4 can be driven to rotate in the opposite direction under the action of the elastic force of the torsion spring, thereby resetting the handle 3.

[0059] In this embodiment, if Figure 2 and Figure 3 As shown, the transmission assembly further includes a cover plate 12 , which is located between the elastic reset member 11 and the driving wheel 4 , and is used to limit the elastic reset member 11 . A first avoidance hole 121 is provided on the cover plate 12 corresponding to the limiting column 43 .

[0060] Specifically, the cover plate 12 is connected to the panel 5, and the elastic reset member 11 is located between the panel 5 and the cover plate 12. Specifically, the cover plate 12 is provided with a first avoidance hole 121 corresponding to the limit column 43, and the limit column 43 passes through the first avoidance hole 121. The first avoidance hole 121 is arc-shaped, and the shape of the first avoidance hole 121 matches the motion trajectory of the limit column 43, so that the cover plate 12 will not affect the rotation of the driving wheel 4. At the same time, a through hole is provided on the cover plate 12 corresponding to the connecting column 45, and the through hole is provided to avoid the driving wheel 4, so that the setting of the cover plate 12 will not affect the connection between the driving wheel 4 and the handle 3.

[0061] By arranging the elastic reset member 11 between the panel 5 and the cover plate 12 , the axial direction of the elastic reset member 11 can be limited to prevent the elastic reset member 11 from moving in the axial direction.

[0062] In this embodiment, if Figure 2 and Figure 3 As shown, the fixed shaft 13 is arranged on the side of the cover plate 12 facing the driving wheel 4 , and a second avoidance hole 44 is arranged on the driving wheel 4 corresponding to the fixed shaft 13 . The fixed shaft 13 passes through the second avoidance hole 44 and is connected to the driven wheel 23 .

[0063] It should be noted that the fixed shaft 13 can be set on the cover plate 12 or on the panel 5, and the fixed position of the fixed shaft 13 can be set as needed. The setting position of the fixed shaft 13 is not used to limit the present invention. Furthermore, the fixed shaft 13 and the cover plate 12 can be integrally formed, which can improve the connection strength of the fixed shaft 13 and the cover plate 12 and save the installation process of the fixed shaft 13 and the cover plate 12. Of course, the fixed shaft 13 and the cover plate 12 can also be connected in other ways, which are not limited here.

[0064] It can be understood that when the driven wheel 23 rotates, the fixed shaft 13 serves as a support, so that the driven wheel 23 can rotate around the fixed shaft 13. By setting the fixed shaft 13 on the cover plate 12, there is no need to set the fixed shaft 13 on the panel 5, which can facilitate the processing of the panel 5 and reduce the length of the fixed shaft 13.

[0065] The door lock in this embodiment includes the above-mentioned transmission assembly for the door lock.

[0066] like Figure 2 As shown, the door lock in this embodiment also includes a sealing plate 7 and a back plate 8. The sealing plate 7 is connected to the panel 5. An accommodating cavity is formed between the sealing plate 7 and the panel 5. The clutch 2, the driving wheel 4, etc. are all located in the accommodating cavity, which can protect the clutch 2, the driving wheel 4, etc. The back plate 8 is connected to the panel 5, and an installation cavity is formed between the back plate 8 and the panel 5. The driving member 9 is arranged between the back plate 8 and the sealing plate 7, and the transmission shaft 1 passes through the back plate 8 and the sealing plate 7.

[0067] In this embodiment, the door lock further includes a front panel assembly (not shown in the figure), which is arranged on the side of the lock body 10 away from the back plate 8, and is electrically connected to the driving member 9. The specific structure of the front panel assembly is conventional prior art and will not be described in detail here.

[0068] The door in this embodiment includes the door lock mentioned above.

[0069] Specifically, the back plate 8 is used to be connected to the door, and the lock body 10 is arranged inside the door.

[0070] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0071] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0072] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0073] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0074] In the present utility model, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0075] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A transmission assembly for a door lock, characterized in that: It includes a transmission shaft, a handle and a clutch, wherein: The input end of the transmission shaft is connected to the driving member of the door lock; The clutch member is arranged at the output end of the transmission shaft; The handle is connected to the transmission shaft through the clutch; When the lock body of the door lock is unlocked by the handle, the clutch is in an engaged state, and the transmission shaft responds to the movement of the handle; when the lock body is unlocked by the drive member, the clutch remains in a disengaged state, and the handle does not respond to the movement of the transmission shaft.

2. The transmission assembly according to claim 1, characterized in that: The clutch member includes a first combining portion and a second combining portion, wherein the first combining portion is connected to the output end of the transmission shaft, and the second combining portion is connected to the handle, wherein: When the lock body is unlocked by driving the handle, the working angle of the second engaging portion is greater than a preset angle, and the clutch is in an engaged state; When the lock body is unlocked by the driving member, the working angle of the first engaging portion is smaller than the preset angle, and the clutch member is in a disengaged state.

3. The transmission assembly according to claim 2, characterized in that: The first coupling portion of the clutch member has a first protrusion, and the second coupling portion of the clutch member has a second protrusion; When the clutch member is in a disengaged state, the first protrusion and the second protrusion are spaced apart from each other in the circumferential direction of the transmission shaft; When the clutch member is in a coupled state, the first protrusion and the second protrusion abut against each other in the circumferential direction of the transmission shaft.

4. The transmission assembly according to claim 3, characterized in that: The first combination portion is provided with a plurality of the first protrusions at even intervals, and the second combination portion is provided with a plurality of the second protrusions at even intervals, wherein: When the clutch member is in a disengaged state, the plurality of first protrusions and the plurality of second protrusions are distributed in a one-to-one correspondence and at intervals in the circumferential direction of the transmission shaft; When the clutch member is in a coupled state, the plurality of first protrusions and the plurality of second protrusions abut against each other in a one-to-one correspondence in the circumferential direction of the transmission shaft.

5. The transmission assembly according to claim 3, characterized in that: Also includes: The second combining portion is provided with a first groove, the second protruding portion is arranged on the side wall of the first groove, and the first protruding portion is located in the first groove.

6. The transmission assembly according to any one of claims 1 to 5, characterized in that: Also includes: A driving wheel connected to the handle; The clutch member includes a driven wheel, and the driving wheel is used to drive the driven wheel to rotate around a fixed axis.

7. The transmission assembly according to claim 6, characterized in that: The driving wheel includes a plurality of driving teeth, and the driven wheel includes a plurality of driven teeth. A second groove is provided on a side of the driving wheel away from the handle. The plurality of driving teeth are evenly spaced along the circumference of the driving wheel on the side wall of the second groove. The plurality of driven teeth are evenly spaced along the circumference of the driven wheel on the outer wall of the driven wheel. The driven wheel is located in the second groove, and the driving teeth and the driven teeth are meshed with each other.

8. The transmission assembly according to claim 7, characterized in that: Also includes: An elastic reset member is connected to the driving wheel and is used to drive the driving wheel to reset.

9. The transmission assembly according to claim 8, characterized in that: The elastic reset member is a torsion spring having two protruding ends. Two limiting posts are arranged at intervals on one side of the driving wheel facing the handle, and the two protruding ends are in one-to-one contact with the two limiting posts.

10. The transmission assembly according to claim 9, characterized in that: It also includes a cover plate, which is located between the elastic reset member and the driving wheel. The cover plate is used to limit the elastic reset member, and a first avoidance hole is arranged on the cover plate corresponding to the limiting column.

11. The transmission assembly according to claim 10, characterized in that: The fixed shaft is arranged on a side of the cover plate facing the driving wheel, a second avoidance hole is arranged on the driving wheel corresponding to the fixed shaft, and the fixed shaft passes through the second avoidance hole and is connected to the driven wheel.

12. A door lock, characterized in that: It comprises a transmission assembly for a door lock according to any one of claims 1-11.

13. A door, characterized in that: Including the door lock described in claim 12.

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