Clutch-type unlocking mechanism for electronic lock

Abstract

Disclosed in the present application is a clutch-type unlocking mechanism for an electronic lock. The clutch-type unlocking mechanism comprises a shell, and a driving device, a transmission device, a clutch member, an output device, a lock rod and an unlocking member, which are arranged inside the shell, wherein the driving device is in transmission connection with the transmission device, and the output device is in transmission connection with the lock rod; a first spline shaft and a second spline shaft are respectively arranged at an output end of the transmission device and an input end of the output device; spline grooves, which are in connection with the first spline shaft and the second spline shaft, are formed in the clutch member; one end of the unlocking member is connected to the clutch member and can push the clutch member to slide on the first spline shaft and the second spline shaft; a first reset spring is arranged between the lock rod and the shell, and when the lock rod is located in a locked position, the first reset spring is deformed and stores energy; and by means of pushing the unlocking member, the clutch member is separated from the second spline shaft, and the lock rod is pushed by the first reset spring to return to an unlocked position. The clutch-type unlocking mechanism for an electronic lock disclosed in the present application has the advantages of needing a relatively small force for manual unlocking, thereby facilitating manual unlocking.

Description

Electronic lock clutch unlocking mechanism

[0001] Related applications

[0002] This application claims priority to Chinese patent application No. 202322564290.X filed on September 20, 2023, and incorporates all disclosures of the aforementioned patent application into this application. Technical Field

[0003] The present application relates to the technical field of locks, and more specifically, to a clutch unlocking mechanism for an electronic lock. Background Art

[0004] With environmental and energy issues intensifying globally, energy-saving and environmentally friendly new energy vehicles are becoming an inevitable trend in the automotive industry. Issues such as charging station construction and charging safety are key factors influencing the development of new energy vehicles. To prevent the charging gun from accidentally becoming detached from the vehicle while in use, and to protect the owner's personal safety, the charging gun is equipped with an electronic lock that locks when inserted into the charging dock. When the charging gun is inserted into the dock, the electronic lock's locking rod extends and engages the charging gun, securing the connection and preventing it from accidentally falling off. Once charging is complete (or when the charging gun needs to be removed), the locking rod automatically retracts, allowing the charging gun to be removed. If an abnormality occurs and manual unlocking is required, the locking rod is manually retracted by manually toggling or pulling the corresponding mechanical structure, allowing the charging gun to be removed from the dock. Traditional charging gun electronic locks manually unlock by directly pulling the locking rod back, which can result in excessive force.

[0005] How to provide a method that can effectively reduce the pulling force required for unlocking has become a technical problem that urgently needs to be solved in this field.

[0006] Summary of the Invention

[0007] One purpose of the present application is to provide a new technical solution for an electronic lock clutch unlocking mechanism.

[0008] According to a first aspect of the present application, there is provided an electronic lock clutch unlocking mechanism, comprising a housing and a drive device, a transmission device, a clutch member, an output device, a locking rod, and an unlocking member arranged in the housing;

[0009] The driving device is in transmission connection with the transmission device, and the output device is in transmission connection with the locking rod;

[0010] The output end of the transmission device and the input end of the output device are respectively provided with a first key shaft and a second key shaft, a key slot connected to the first key shaft and the second key shaft is provided in the clutch member, and one end of the unlocking member is connected to the clutch member and can push the clutch member to slide on the first key shaft and the second key shaft;

[0011] A first return spring is provided between the locking rod and the housing, and when the locking rod is in the locked position, the first return spring is deformed and stores energy;

[0012] In an abnormal state, by pushing the unlocking member, the clutch member slides on the first key shaft and disengages from the second key shaft, and the lock rod is pushed by the first return spring to return to the unlocking position.

[0013] The electronic lock clutch unlocking mechanism disclosed in the present invention has the following beneficial effects:

[0014] The unlocking member pushes the clutch member, causing it to slide on the first key shaft and disengage from the second key shaft, separating the output device from the transmission device. This frees the output device and the lock rod from the constraints of the drive device. The lock rod can then be restored to the unlocked position by the rebound force of the first spring, thereby completing the unlocking of the electronic lock in an abnormal state and separating the charging gun from the charging base. The use of the rebound force of the first spring to reset the lock rod to the unlocked position has the advantages of requiring less force for manual unlocking and convenient manual unlocking. At the same time, the clutch member forms an integral structure between the transmission device and the output device, allowing the driving force of the drive device to be stably transmitted to the lock rod via the transmission device, the clutch member, and the output device, resulting in a stable and reliable transmission structure and a compact structure.

[0015] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.

[0017] FIG1 is a schematic structural diagram of a clutch unlocking mechanism for an electronic lock according to a preferred embodiment of the present application;

[0018] FIG2 is a schematic diagram of the outer structure of the electronic lock clutch unlocking mechanism according to the preferred embodiment of the present application;

[0019] FIG3 is a schematic diagram of the internal structure of the electronic lock clutch unlocking mechanism according to a preferred embodiment of the present application;

[0020] FIG4 is a schematic structural diagram of the transmission device of the present application;

[0021] FIG5 is a schematic structural diagram of the clutch component of the present application;

[0022] FIG6 is a schematic structural diagram of the output device of the present application;

[0023] FIG7 is a schematic structural diagram of the unlocking component of the present application;

[0024] FIG8 is a structural diagram showing the positional relationship among the locking rod, the housing and the first return spring of the present application.

[0025] The following are marked in the figure:

[0026] 101-housing; 102-driving device; 103-transmission device; 104-clutch member; 105-output device; 106-locking rod; 107-unlocking member; 108-first key shaft; 109-second key shaft; 110-key groove; 111-first return spring; 112-second return spring; 113-axial rib; 114-axial groove; 115-guide part; 116-annular groove; 117-working part; 118-operating rod; 119-first through hole; 120-transmission worm gear; 121-driving worm; 122-steering worm gear; 123-steering worm; 124-output gear; 125-rack; 126-second through hole; 127-U-shaped groove. DETAILED DESCRIPTION

[0027] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0028] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present disclosure, its application, or uses.

[0029] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0030] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0031] According to an electronic lock clutch unlocking mechanism disclosed herein, as shown in FIG1 , includes a housing 101 and a driving device 102 , a transmission device 103 , a clutch member 104 , an output device 105 , a locking rod 106 and an unlocking member 107 arranged in the housing 101 .

[0032] The driving device 102 is in transmission connection with the transmission device 103 , and the output device 105 is in transmission connection with the locking rod 106 .

[0033] The output end of the transmission device 103 and the input end of the output device 105 are respectively provided with a first key shaft 108 and a second key shaft 109, a key slot 110 connected to the first key shaft 108 and the second key shaft 109 is provided in the clutch member 104, and one end of the unlocking member 107 is connected to the clutch member 104 and can push the clutch member 104 to slide on the first key shaft 108 and the second key shaft 109.

[0034] A first return spring 111 is provided between the locking rod 106 and the housing 101 . When the locking rod 106 is located at the locking position, the first return spring 111 is deformed and stores energy.

[0035] In an abnormal state, by pushing the unlocking member 107 , the clutch member 104 slides on the first key shaft 108 and disengages from the second key shaft 109 , and the lock rod 106 returns to the unlocking position under the push of the first return spring 111 .

[0036] By setting a clutch component 104 between the transmission device 103 and the output device 105, the clutch component 104 can be connected to the first key shaft 108 and the second key shaft 109 through the key groove 110 set inside it, thereby connecting the transmission device 103 and the output device 105 to form an integral structure, and the driving force from the driving device 102 can be transmitted to the locking rod 106 through this integral structure, so that the locking rod 106 completes the locking action under the action of the driving device 102.

[0037] The unlocking member 107 is used to push the clutch member 104 so that the clutch member 104 slides on the first key shaft 108 and disengages from the second key shaft 109, separating the output device 105 from the transmission device 103. This allows the output device 105 and the lock rod 106 to be free from the restriction of the drive device 102. The lock rod 106 can utilize the rebound force of the first spring to return to the unlocked position, thereby completing the electronic lock unlocking action under abnormal conditions and completing the separation of the charging gun and the charging base. Utilizing the rebound force of the first spring to reset to the unlocked position has the advantages of requiring less force for manual unlocking and convenient manual unlocking. At the same time, the transmission device 103 and the output device 105 are formed into an integral structure through the clutch member 104, so that the driving force of the drive device 102 can be stably transmitted to the lock rod 106 via the transmission device 103, the clutch member 104 and the output device 105, which has the advantages of a stable and reliable transmission structure and a compact structure.

[0038] According to an embodiment of an electronic lock clutch unlocking mechanism disclosed herein, as shown in FIG1 , a second return spring 112 is provided between the transmission device 103 and the clutch member 104 . The second return spring 112 is in a natural state, and the clutch member 104 is connected to the first key shaft 108 and the second key shaft 109 .

[0039] A second return spring 112 is provided between the transmission device 103 and the clutch member 104. In the process of using the unlocking member 107 to push the clutch member 104 toward the side of the transmission device 103, the second spring is deformed and stores energy, and at the same time, the clutch member 104 is disengaged from the second key shaft 109, so that the lock rod 106 is restored to the unlocked position by the rebound force of the first spring. After the force acting on the unlocking member 107 disappears, the second return spring 112 drives the clutch member 104 to slide toward the second key shaft 109 during the process of returning to the natural state, and connects the key slot 110 of the clutch member 104 to the first key shaft 108 and the second key shaft 109 at the same time, so as to form the transmission device 103, the clutch member 104 and the output device 105 into an integral structure, thereby completing the driving device 102 to drive the lock rod 106 through the integral structure formed by the transmission device 103, the clutch member 104 and the output device 105 to complete the locking and unlocking actions.

[0040] 1 , the second return spring 112 is sleeved around the first key shaft 108. The second return spring 112 can slide smoothly, thereby driving the clutch member 104 to slide on the first key shaft 108 and the second key shaft 109, thereby smoothly completing the separation and connection of the clutch member 104 and the second key shaft 109.

[0041] Specifically, the second return spring 112 is a compression spring; the first return spring 111 is a compression spring or a tension spring. The second return spring 112 is a compression spring that can be compressed and deformed when the unlocking member 107 pushes the clutch member 104 to separate from the second key shaft 109. When the force of the unlocking member 107 disappears, the force generated by the compression spring during the recovery deformation process is used to rebound the clutch member 104 to its initial position connected to the second key shaft 109. The first return spring 111 is a compression spring or a tension spring. When the lock rod 106 is in the locked position, the first return spring 111 and the second through hole 126 through which the lock rod 106 passes are located on the same side (as shown in Figure 8). The first return spring 111 can be a compression spring, the first return spring 111 and the second through hole 126 through which the lock rod 106 passes are located on the opposite side, or the first return spring 111 can be a tension spring. In either case, when the lock rod 106 loses the control force of the drive device 102, the biasing force generated by its deformation can be used to drive the lock rod 106 to return to the unlocked position.

[0042] According to an embodiment of an electronic lock clutch unlocking mechanism disclosed in the present invention, as shown in Figures 5 and 6, the second key shaft 109 has a plurality of axial ribs 113 arranged at intervals along the circumferential direction, and the axial ribs 113 are matched one by one and inserted into the axial grooves 114 of the corresponding key slots 110. A guide portion 115 is provided on the side of each axial rib 113 close to the transmission device 103, and the radial cross-sectional area of ​​the guide portion 115 gradually decreases toward the end close to the transmission device 103.

[0043] When the second return spring 112 drives the clutch member 104 to connect to the second key shaft 109 , the guide portion 115 is provided to facilitate the insertion of the axial rib 113 into the axial groove 114 .

[0044] According to an embodiment of an electronic lock clutch unlocking mechanism disclosed in the present invention, as shown in Figures 1, 2 and 5, the outer peripheral wall of the clutch component 104 is recessed inward to form an annular groove 116; the unlocking component 107 has a working portion 117 and an operating rod 118, the working portion 117 is clamped between the bottom wall of the annular groove 116 and the inner wall of the shell 101, and the operating rod 118 extends through a first through hole 119 provided in the shell 101 and protrudes to the outside of the shell 101.

[0045] By fixing the working part 117 into the annular groove 116, the clutch member 104 can be driven to slide on the first key shaft 108 and the second key shaft 109, thereby completing the separation of the clutch member 104 and the second key shaft 109, so that the locking rod 106 is reset to the unlocked position under the action of the first reset spring 111.

[0046] Specifically, as shown in Figures 1 and 7, the working portion 117 is configured as a U-shaped groove 127. The inner circumferential wall of the U-shaped groove 127 abuts the bottom wall of the annular groove 116, and the axially disposed end walls of the U-shaped groove 127 are clamped between the two side walls of the annular groove 116. The provision of the U-shaped groove 127 facilitates assembly of the working portion 117 and the clutch member 104, thereby improving the efficiency of electronic lock assembly.

[0047] According to an embodiment of a clutch unlocking mechanism for an electronic lock disclosed herein, as shown in FIG7 , a working portion 117 and an operating lever 118 are integrally formed and bent at a right angle. Pushing the operating lever 118 causes the working portion 117 to move the clutch member 104, facilitating manual unlocking of the electronic lock.

[0048] According to an embodiment of an electronic lock clutch unlocking mechanism disclosed in the present invention, as shown in Figures 3 and 4, the transmission device 103 has a transmission worm gear 120 coaxial with the first key shaft 108, and the output shaft of the driving device 102 is coaxially connected to the driving worm 121, and the transmission worm gear 120 is engaged with the driving worm 121.

[0049] By connecting the drive worm gear 120 to the drive turbine, the rotational motion of the drive worm 121 connected to the output shaft of the drive device 102 can be transmitted to the locking rod 106 via the transmission device 103 and the output device 105, thereby completing the locking and unlocking actions of the locking rod 106.

[0050] According to an embodiment of a clutch unlocking mechanism for an electronic lock disclosed in the present invention, as shown in Figure 3, the electronic lock also includes a steering assembly, which includes a steering worm wheel 122 and a steering worm 123 that are coaxial and spaced apart. The transmission device 103 has a transmission worm wheel 120 that is coaxial with the first key shaft 108. The output shaft of the drive device 102 is coaxially connected to the driving worm 121. The steering worm wheel 122 is engaged with the driving worm 121, and the steering worm 123 is engaged with the transmission worm wheel 120.

[0051] By means of the steering assembly, the driving device 102 can be installed at an optimal position relative to the transmission device 103 and the output device 105, so that the internal structure of the electronic lock is arranged compactly.

[0052] According to an embodiment of an electronic lock clutch unlocking mechanism disclosed herein, as shown in Figures 1, 3 and 6, the output device 105 has an output gear 124 coaxial with the second key shaft 109, and the lock rod 106 is provided with a rack 125, and the output gear 124 is engaged with the rack 125.

[0053] By engaging the output gear 124 with the rack 125 , the rotation of the driving device 102 can be transmitted to the locking rod 106 through the transmission device 103 and the output device 105 , thereby driving the locking rod 106 to move back and forth between the locked position and the unlocked position.

[0054] Although some specific embodiments of the present application have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. An electronic lock clutch unlocking mechanism, wherein: It comprises a housing and a driving device, a transmission device, a clutch component, an output device, a locking rod and an unlocking component arranged in the housing; The driving device is in driving connection with the transmission device, and the output device is in driving connection with the locking rod; The output end of the transmission device and the input end of the output device are respectively provided with a first key shaft and a second key shaft, a key slot connected to the first key shaft and the second key shaft is provided in the clutch member, and one end of the unlocking member is connected to the clutch member and can push the clutch member to slide on the first key shaft and the second key shaft; A first return spring is arranged between the lock rod and the housing, and when the lock rod is in the locking position, the first return spring is deformed and stores energy; In an abnormal state, by pushing the unlocking member, the clutch member slides on the first key shaft and disengages from the second key shaft, and the lock rod is pushed by the first return spring to return to the unlocking position.

2. The electronic lock clutch unlocking mechanism according to claim 1, wherein: A second return spring is arranged between the transmission device and the clutch member, the second return spring is in a natural state, and the clutch member is connected to the first key shaft and the second key shaft.

3. The electronic lock clutch unlocking mechanism according to claim 2, wherein: The second return spring is sleeved on the first key shaft.

4. The electronic lock clutch unlocking mechanism according to claim 2, wherein: The second return spring is a compression spring; the first return spring is a compression spring or a tension spring.

5. The electronic lock clutch unlocking mechanism according to claim 1, wherein: The second key shaft has a plurality of axial ribs arranged at intervals along the circumferential direction, and the axial ribs are matched and inserted into the corresponding axial grooves of the keyway one by one. A guide portion is provided on the side of each axial rib close to the transmission device, and the radial cross-sectional area of ​​the guide portion gradually decreases toward the end close to the transmission device.

6. The electronic lock clutch unlocking mechanism according to claim 1, wherein: An annular groove is formed by an inward depression from the outer peripheral wall of the clutch component; the unlocking component has a working part and an operating rod, the working part is clamped between the bottom wall of the annular groove and the inner wall of the shell, and the operating rod extends through a first through hole set in the shell and protrudes to the outside of the shell.

7. The electronic lock clutch unlocking mechanism according to claim 6, wherein: The working portion is configured as a U-shaped groove, the inner peripheral wall of the U-shaped groove abuts against the bottom wall of the annular groove, and the two end walls of the U-shaped groove arranged along the axial direction are clamped between the two side walls of the annular groove.

8. The electronic lock clutch unlocking mechanism according to claim 6, wherein: The working portion and the operating rod are integrally formed and bent at a right angle.

9. The electronic lock clutch unlocking mechanism according to claim 1, wherein: The transmission device has a transmission worm wheel coaxial with the first key shaft, the output shaft of the driving device is coaxially connected to the driving worm, and the transmission worm wheel is meshed with the driving worm.

10. The electronic lock clutch unlocking mechanism according to claim 1, wherein: The electronic lock also includes a steering assembly, which includes a steering worm wheel and a steering worm that are coaxial and spaced apart. The transmission device has a transmission worm wheel that is coaxial with the first key shaft. The output shaft of the drive device is coaxially connected to the driving worm. The steering worm wheel is meshed with the driving worm, and the steering worm is meshed with the transmission worm wheel.

11. The electronic lock clutch unlocking mechanism according to claim 1, wherein: The output device has an output gear coaxial with the second key shaft, the lock rod is provided with a rack, and the output gear is meshed with the rack.

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