Electronic lock having clutch type unlocking mechanism

Abstract

The present application discloses an electronic lock having a clutch type unlocking mechanism, comprises: a housing; a transmission device being transmittingly connected to a driving device, and a clutch component capable of axially sliding being provided on the transmission device; an output device being in clutch connection with the transmission device by means of the clutch component; a lock rod being transmittingly connected to the output device and being driven by the output device to reciprocate between an unlocked position and a locked position; and an unlocking device, the unlocking device comprising a pushing component having a cam structure and an unlocking gear having a half gear structure, and when the unlocking device rotates towards a first direction, the cam structure pushing the clutch component to be separated from the output device, and the half gear structure being transmittingly connected to the output device to drive the lock rod to move to the unlocked position. The electronic lock having the clutch type unlocking mechanism of the present application has the advantages of stable and reliable transmission structure and compact structure; and when the electronic lock is in normal working condition, the unlocking device does not rotate when the driving device drives the lock rod to reciprocate between the unlocked position and the locked position.

Description

Electronic lock with clutch unlocking mechanism

[0001] Related applications

[0002] This application claims priority to Chinese patent application No. 202311394372.2 filed on October 26, 2023, and cites the contents disclosed in the above patent application as part of this application. Technical Field

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

[0004] With environmental and energy issues intensifying globally, energy-efficient 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 personal safety of the vehicle owner, 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 locks 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 pulling or pulling the corresponding mechanical structure, allowing the charging gun to be removed from the dock. Traditional manual unlocking of charging gun electronic locks requires pulling the locking rod directly, which can result in excessive force required for manual unlocking. Alternatively, the unlocking mechanism can rotate continuously, both forward and reverse, during use as the lock lock is locked and unlocked, significantly impacting product reliability and lifespan.

[0005] Therefore, how to provide a method that can effectively reduce the unlocking force required for unlocking while preventing the unlocking device from rotating forward and reverse continuously during normal use of the electronic lock has become a technical problem that urgently needs to be solved in this field.

[0006] Summary of the Invention

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

[0008] According to a first aspect of the present application, an electronic lock having a clutch unlocking mechanism is provided, comprising a housing, wherein the housing has:

[0009] Drive device;

[0010] A transmission device, the transmission device being in transmission connection with the driving device, and the transmission device being provided with an axially slidable clutch member;

[0011] an output device, the output device being clutch-connected to the transmission device via the clutch member;

[0012] a locking rod, the locking rod being drivingly connected to the output device and driven by the output device to reciprocate between an unlocked position and a locked position;

[0013] An unlocking device includes a pushing member with a cam structure and an unlocking gear with a half-gear structure arranged in sequence along its axial direction. When the unlocking device rotates in a first direction, the cam structure pushes the clutch member out of the output device, and the half-gear structure is transmission-connected to the output device to drive the locking rod to move to the unlocking position.

[0014] An electronic lock with a clutch unlocking mechanism according to the present disclosure has the following beneficial effects:

[0015] 1. By rotating the unlocking device in a first direction, the cam structure of the pushing member pushes the clutch member to disengage from the output device, so that the movement of the output device in the housing is not restricted by the driving device and the transmission device. After the clutch member disengages from the output device, the unlocking device is further rotated, the unlocking gear connects to the output device and drives the output device to move. The movement of the output device drives the locking rod to the unlocked position, which has the advantages of small force required for manual unlocking and convenient manual unlocking.

[0016] 2. By setting up an unlocking device, the structure of connecting the lock rod through a spring in the conventional electronic lock housing can be eliminated, thereby reducing the number of parts in the electronic lock, reducing the assembly time of the electronic lock, and extending the service life of the electronic lock; at the same time, because the unlocking device, the output device and the lock rod all have fixed positions in the housing, the transmission structure between the three has the advantages of stable and reliable and compact structure.

[0017] 3. Under normal circumstances, when the electronic lock drives the lock rod to move back and forth between the unlocking position and the locking position through the driving device, the unlocking device does not rotate.

[0018] 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

[0019] 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.

[0020] FIG1 is a schematic diagram of the overall structure of an electronic lock with a clutch unlocking mechanism according to an optional embodiment of the present application;

[0021] FIG2 is a schematic diagram of the internal structure of an electronic lock housing with a clutch unlocking mechanism according to an optional embodiment of the present application;

[0022] FIG3 is a schematic diagram of the exploded structure of the transmission device, clutch component, and output device in an electronic lock with a clutch unlocking mechanism according to an optional embodiment of the present application;

[0023] FIG4 is a schematic structural diagram of the assembled hand crank component and unlocking device in an electronic lock with a clutch unlocking mechanism according to an optional embodiment of the present application;

[0024] FIG5 is another overall structural diagram of an electronic lock with a clutch unlocking mechanism according to an optional embodiment of the present application;

[0025] FIG6 is a cross-sectional view taken along line EE in FIG5 .

[0026] FIG7 is a schematic diagram of the assembly structure of an electronic lock transmission device with a clutch unlocking mechanism and an unlocking device in a housing according to an optional embodiment of the present application;

[0027] FIG8 is a schematic diagram of the exploded structure of an unlocking device with a clutch unlocking mechanism and a hand crank component according to an optional embodiment of the present application;

[0028] FIG9 is a schematic diagram of the assembly structure of a transmission device with a clutch unlocking mechanism, a clutch component, and an output device according to an optional embodiment of the present application;

[0029] FIG10 is a cross-sectional view taken along line FF in FIG9 .

[0030] The markings in the figure are as follows: 101-housing, 102-driving device; 103-transmission device; 104-clutch member; 105-output device; 106-locking rod; 107-pushing member; 108-unlocking gear; 109-first end face; 110-second inclined surface; 111-third end face; 112-limiting member; 113-limiting rib; 114-additional limiting member; 115-additional limiting rib; 116-reset driving gear; 117-reset transmission gear; 118-keyway; 119-first key shaft; 120-second key shaft; 121-output gear; 122-guide portion; 123-reset spring; 124-transmission Drive gear; 125-driving mechanism; 126-driving worm; 127-steering assembly; 128-steering worm wheel; 129-steering worm; 130-hand crank component; 131-rotating shaft; 132-turntable; 133-eccentric crank handle; 134-rack; 135-positioning shaft; 136-positioning cavity; 137-limiting flange; 138-unlocking device; 139-limiting surface; 140-first sealing member; 141-second sealing member; 142-annular member; A-first position; B-second position; C-third position; R1-first direction; R2-second direction. DETAILED DESCRIPTION

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] According to an embodiment of the present disclosure, an electronic lock with a clutch unlocking mechanism, as shown in FIG1 to FIG8 , includes a housing 101 , wherein the housing 101 has:

[0036] Driving device 102;

[0037] The transmission device 103 is in transmission connection with the driving device 102 and is provided with an axially slidable clutch member 104;

[0038] An output device 105, wherein the output device 105 is clutch-connected to the transmission device 103 via the clutch member 104; wherein "clutch-connected" can be understood as a detachable connection, that is, the output device 105 can be disengaged from or engaged with the transmission device 103 via the clutch member 104;

[0039] a locking rod 106 , the locking rod 106 being in transmission connection with the output device 105 and driven by the output device 105 to reciprocate between an unlocked position and a locked position;

[0040] The unlocking device 138 includes a pushing member 107 with a cam structure and an unlocking gear 108 with a half-gear structure arranged in sequence along its axial direction. When the unlocking device 138 rotates toward the first direction R1, the cam structure pushes the clutch member 104 to disengage from the output device 105, and the half-gear structure is transmitted to the output device 105 to drive the locking rod 106 to move to the unlocking position.

[0041] By rotating the unlocking device 138 along the first direction R1, the cam structure of the pushing member 107 pushes the clutch member 104 to disengage from the output device 105, so that the movement of the output device 105 in the housing 101 is not restricted by the driving device 102 and the transmission device 103. After the clutch member 104 disengages from the output device 105, the unlocking device 138 is further rotated, the unlocking gear 108 connects to the output device 105 and drives the output device 105 to rotate. The rotation of the output device 105 drives the locking rod 106 to move to the unlocked position, which has the advantages of small force required for manual unlocking and convenient manual unlocking.

[0042] By providing the unlocking device 138, the structure of connecting the lock rod 106 via a spring in the conventional electronic lock housing 101 can be eliminated, thereby reducing the number of parts in the electronic lock, reducing the assembly time of the electronic lock, and extending the service life of the electronic lock; at the same time, because the unlocking device 138, the output device 105 and the lock rod 106 all have fixed positions in the housing 101, the transmission structure between the three has the advantages of stable and reliable and compact structure.

[0043] In specific implementation, the locking rod 106 extends to the outside of the housing 101 through the locking rod through hole, and a first sealing member 140 is provided between the locking rod 106 and the locking rod through hole to prevent water or impurities from entering the housing 101 through the locking rod through hole.

[0044] According to an embodiment of an electronic lock with a clutch unlocking mechanism disclosed herein, as shown in Figures 2 and 4, a pushing member 107 is coaxially arranged with an unlocking device 138, and a cam structure is arranged on a side of the pushing member 107 facing the clutch member 104; the cam structure includes a first end face 109, a second inclined surface 110, and a third end face 111 that can sequentially contact the clutch member 104, the third end face 111 is higher than the first end face 109, and the first end face 109 transitions to the third end face 111 via the second inclined surface 110. When the pushing member 107 rotates, the clutch member 104 is pushed from the first end face 109 to the third end face 111 and generates axial displacement, thereby disengaging from the output device 105.

[0045] When the first end face 109 contacts the clutch member 104, the transmission device 103 is connected to the output device 105 via the clutch member 104 at the optimal position to ensure that the driving device 102 drives the transmission device 103 to drive the output device 105 to rotate, so as to drive the locking rod 106 to move back and forth between the unlocked position and the locked position. At the same time, when the electronic lock is in normal use, the unlocking device 138 does not rotate when the locking rod 106 is driven by the driving device 102 to move back and forth between the unlocked position and the locked position.

[0046] In specific implementation, the third end surface 111 has a first point A and a second point B. The first point A is closer to the second inclined surface 110 than the second point B. When the clutch member 104 contacts the first point A, the locking rod 106 is in the locked position. When the clutch member 104 contacts the second point B, the locking rod 106 is in the unlocked position. The third end surface 111 also has a third point C located between the first point A and the second point B. When the clutch member 104 contacts the position between the first point A and the third point C, the half-gear structure of the unlocking gear 108 is not connected to the output gear 121 of the output device 105; when the clutch member 104 contacts the third point C, the half-gear structure of the unlocking gear 108 is about to start engaging with the output gear 121 of the output device 105, and drives the output gear 121 between the third point C and the second point B to drive the locking rod 106 to reset to the unlocked position.

[0047] When the electronic lock cannot be unlocked through the normal process, the unlocking device 138 is manually rotated, and the pushing member 107 pushes the clutch member 104 via the second inclined surface 110 to contact the third end surface 111. When the clutch member 104 contacts the third end surface 111, the clutch member 104 is completely disengaged from the output device 105. The rotation of the output device 105 is no longer restricted by the driving device 102 and the transmission device 103. The unlocking device 138 is further rotated, and the half gear structure of the unlocking gear 108 engages the output gear 121 of the output device 105, driving the output gear 121 to rotate, thereby driving the lock rod 106 engaged with the output gear 121 to move to the unlocked position. Manual unlocking by rotating the unlocking device 138 has the advantages of requiring less force and being convenient.

[0048] Specifically, as shown in Figures 1, 2, 5 and 7, the half-gear structure is coaxially arranged with the unlocking device 138. When the third end face 111 contacts the clutch member 104, the clutch member 104 disengages from the output device 105, and the gear portion of the half-gear structure is meshed with the output gear 121 of the output device 105 and is connected to the output gear 121, driving the output gear 121 to rotate to drive the locking rod 106 to move to the unlocking position.

[0049] The clutch member 104 is disengaged from the output device 105 so that the rotation of the output device 105 is not restricted by the transmission device 103 and the drive device 102. The output gear 121 is rotated and driven by the unlocking device 138, and then the output gear 121 drives the locking rod 106 to move to the unlocking position, which has the advantages of requiring little force for manual unlocking and being convenient for the operator to operate.

[0050] More specifically, as shown in Figures 4 and 5, the unlocking device 138 is radially provided with a protruding limit piece 112, and a limit rib 113 is provided in the shell 101. When the third end face 111 contacts the clutch member 104 and the locking rod 106 moves to the unlocking position, the limit piece 112 abuts the limit rib 113.

[0051] By providing the limiting member 112 and the limiting rib 113 , the locking rod 106 is maintained in the unlocking position, so that the reset transmission gear 117 is set at a position where it can be engaged with the reset drive gear 116 .

[0052] More specifically, as shown in Figures 4 to 7, the unlocking device 138 is radially provided with a protruding additional limiting piece 114, and an additional limiting rib 115 is provided in the shell 101. When the clutch member 104 is reset to the first end face 109 via the second inclined surface 110, the additional limiting piece 114 abuts against the additional limiting rib 115, and the additional limiting rib 115 and the limiting rib 113 are separated on both sides of the axial direction of the unlocking device 138.

[0053] By providing an additional limiting member 114 and an additional limiting rib 115, the unlocking device 138 can be prevented from further rotating in the second direction R2, thereby preventing the unlocking gear 108 from interfering with other structures in the shell 101 and being damaged, so that the unlocking gear 108 can rotate within a predetermined space in the shell 101.

[0054] When the unlocking device 138 rotates in the first direction R1 and the second direction R2 , the limiting rib 113 does not interfere with the pushing member 107 .

[0055] Specifically, as shown in Figures 3 and 4, a radially protruding reset drive gear 116 is provided on the outer periphery of the clutch member 104, and a radially protruding reset transmission gear 117 is provided on the outer periphery of the unlocking device 138. When the third end face 111 contacts the clutch member 104 and the locking rod 106 is in the unlocked position, the reset drive gear 116 is engaged with the reset transmission gear 117, and the transmission device 103 is connected to the unlocking device 138 to drive the unlocking gear 108 to rotate in a second direction R2 opposite to the first direction R1, thereby driving the output gear 121 of the output device 105 to rotate, and the output gear 121 drives the locking rod 106 to move to the locked position.

[0056] When the clutch member 104 contacts the second position B of the third end surface 111, the driving device 102 drives the transmission device 103 to rotate, thereby driving the reset driving gear 116 to engage the reset transmission gear 117 to rotate, so that when the clutch member 104 moves from the second position B to the third position C (i.e., the second direction R2) and the clutch member 104 reaches the third position C, the locking rod 106 just moves to the locking position and the unlocking gear 108 just disengages from the output device 105. Therefore, when the clutch member 104 is at the third position C and the first position C, the locking rod 106 just moves to the locking position and the unlocking gear 108 just disengages from the output device 105. When the reset drive gear 116 further drives the reset transmission gear 117 to rotate, the driving member 107 is driven to rotate, so that the clutch member 104 slides through the third position C and the first position A in sequence, and enters the second inclined surface 110 to engage with the output device 105. Under the drive of the reset spring 123, the clutch member 104 is reset to contact the first end surface 109. At this time, the reset drive gear 116 is disengaged from the reset transmission gear 117, and the rotation of the transmission device 103 will not drive the unlocking device 138 to rotate.

[0057] More specifically, the reset drive gear 116 is partially arranged along the circumferential direction of the clutch member 104; the reset transmission gear 117 is partially arranged along the circumferential direction of the unlocking device 138, and when the third end face 111 contacts the clutch member 104, the reset drive gear 116 is engaged with the reset transmission gear 117.

[0058] When the clutch member 104 moves on the third end surface 111 , the reset drive gear 116 is engaged with the reset transmission gear 117 , which can make the structure of the electronic lock more compact and reduce the appearance and volume of the electronic lock.

[0059] There is no restriction on the number of gear teeth of the reset drive gear 116 and the reset transmission gear 117. It is sufficient that the reset drive gear 116 engages and drives the reset transmission gear 117 when the clutch member 104 is located on the third end surface 111. In other words, the reset drive gear 116 engages the reset transmission gear 117 throughout the entire process of the clutch member 104 contacting the third end surface 111. When the clutch member 104 contacts the first end surface 109 and the second inclined surface 110, the reset drive gear 116 does not engage with the reset transmission gear 117. The figures only schematically illustrate the reset drive gear 116 and the reset transmission gear 117, and do not illustrate the number of gear teeth of the reset drive gear 116 and the reset transmission gear 117.

[0060] During specific implementation, the limiting member 112 and the limiting rib 113 are in contact, ensuring that the reset transmission gear 117 is facing the side of the clutch component 104, so that when the electronic lock moves the lock rod 106 to the locked position through the driving device 102, the reset drive gear 116 located on the side of the clutch component 104 can engage the reset transmission gear 117 during the rotation process.

[0061] More specifically, as shown in FIG4 , the reset transmission gear 117 and the unlocking gear 108 are respectively located on either side of the pushing member 107. The reset transmission gear 117 and the reset drive gear 116 can be located on the same side, and the output gear 121 and the unlocking gear 108 can be located on the same side, so that when the unlocking device 138 is rotated, the unlocking gear 108 and the output gear 121 engage; when the driving device 102 is used to move the lock bar 106 to the locked position, the reset transmission gear 117 and the reset drive gear 116 engage.

[0062] Specifically, as shown in FIG3 , a through keyway 118 is provided in the clutch member 104 , and the output end of the transmission device 103 has a first key shaft 119 matching the keyway 118 , and the keyway 118 is sleeved on the first key shaft 119 and can slide on the first key shaft 119 .

[0063] Through the cooperation between the key slot 118 and the first key shaft 119 , the clutch member 104 can be slidably mounted on the transmission device 103 , and the clutch member 104 can rotate along with the transmission device 103 .

[0064] More specifically, as shown in FIG. 3 , the output device 105 includes a second key shaft 120 and an output gear 121 that are coaxial and spaced apart. The second key shaft 120 is matched and connected to the key slot 118 .

[0065] Through the cooperation of the key slot 118 and the second key shaft 120, the clutch component 104 can be clutched and connected to the output device 105, and the transmission device 103 and the output device 105 can be connected into an integral structure through the clutch component 104, so that the output device 105 can rotate along with the transmission device 103, and then the driving device 102 can drive the output device 105 to rotate via the driving transmission device 103, and then drive the locking rod 106 to move back and forth between the unlocking position and the locking position.

[0066] More specifically, as shown in Figures 3, 9 and 10, a positioning shaft 135 with a circular cross-section is formed by protruding outward from the end of the second key shaft 120, and a positioning cavity 136 matching the positioning shaft 135 is formed by being recessed inward from the end of the first key shaft 119. The positioning shaft 135 extends through the key slot 118 of the clutch member 104 and is inserted into the positioning cavity 136. When the clutch member 104 is disengaged from the second key shaft 120, the positioning shaft 135 and the positioning cavity 136 are slidable relative to each other.

[0067] When the clutch member 104 is pushed by the return spring 123 to make the key slot 118 of the clutch member 104 slide on the first key shaft 119 and connect or disengage with the key teeth of the second key shaft 120, it plays a role in limiting the radial deviation of any of the first key shaft 119, the second key shaft 120 and the clutch member 104.

[0068] More specifically, as shown in FIG3 , a guide portion 122 is provided on one side of the second key shaft 120 close to the transmission device 103 , and the radial cross-sectional area of ​​the key teeth located in the guide portion 122 gradually decreases toward the end close to the transmission device 103 .

[0069] The guide portion 122 facilitates the clutch member 104 to engage with the second key shaft 120 to connect with the output device 105 , so that the output device 105 can rotate along with the transmission device 103 .

[0070] More specifically, as shown in FIG3 , a limiting flange 137 is provided on the side of the second key shaft 120 away from the transmission device 103, and a limiting surface 139 is provided on the end of the clutch member 104 close to the output member. When the clutch member 104 is connected to the output device 105, the limiting flange 137 abuts against the limiting surface 139. This prevents the clutch member 104 from moving further toward the output gear 121, thereby positioning the clutch member 104 at a predetermined position on the second key shaft 120. In other words, this prevents the clutch member 104 from being pushed away from its predetermined installation position and toward the output gear 121 due to excessive elastic force of the return spring 123 provided between the transmission device 103 and the clutch member 104.

[0071] More specifically, as shown in Figure 2, a return spring 123 is arranged between the transmission device 103 and the clutch member 104. When the return spring 123 is in a natural state, the clutch member 104 contacts the first end surface 109 of the pushing member 107 to connect the transmission device 103 and the output device 105, so that the key slot 118 is connected to the first key shaft 119 and the second key shaft 120 at the same time.

[0072] After the clutch member 104 enters the second end face from the third end face 111 , a return spring 123 may be provided to push the clutch member 104 to slide toward the output member, thereby completing the engagement between the clutch member 104 and the second key shaft 120 .

[0073] More specifically, as shown in FIG3 , the keyway 118 , the first key shaft 119 , and the second key shaft 120 are all splines.

[0074] The first key shaft 119 and the second key shaft 120 are splines, which can make the connection between the clutch member 104 and the first key shaft 119 and the second key shaft 120 more stable.

[0075] More specifically, the return spring 123 is a compression spring, and is sleeved on the outer circumference of the first key shaft 119 of the transmission device 103 .

[0076] The compression spring is sleeved outside the first key shaft 119 of the transmission device 103, which can save assembly space and at the same time make the compression spring have an optimal elastic force.

[0077] According to an embodiment of an electronic lock with a clutch unlocking mechanism disclosed herein, the transmission device 103 includes a coaxially arranged transmission shaft and a transmission gear 124, and the drive device 102 includes a drive mechanism 125 and a drive worm 126. The transmission gear 124 is engaged with the drive worm 126, so that the rotation of the drive mechanism 125 is transmitted to the transmission shaft.

[0078] The drive mechanism 125 can be a motor, the output shaft of which is connected to a drive worm 126. The transmission gear 124 can be a worm gear structure. The drive worm 126 and the transmission gear 124 are meshed, and the rotational output of the motor can be transmitted to the lock rod 106 via the transmission shaft (i.e., the first key shaft 119), the clutch member 104, and the output device 105, thereby driving the lock rod 106 to reciprocate between the locked position and the unlocked position. A return spring 123 is disposed between the transmission gear 124 and the clutch member 104, with one end of the return spring 123 fixed to the transmission device 103 and the other end fixed to the clutch member 104.

[0079] Specifically, as shown in Figures 1 and 2, the transmission device 103 also includes a steering assembly 127, which includes a coaxial and spaced steering worm wheel 128 and a steering worm 129. The steering worm wheel 128 is engaged with the driving worm 126, and the steering worm 129 is engaged with the transmission gear 124.

[0080] By means of the steering assembly 127 , 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.

[0081] According to an embodiment of an electronic lock with a clutch unlocking mechanism disclosed in the present invention, as shown in Figures 1, 2, 4 and 8, the electronic lock also includes a hand-cranked component 130, which includes a rotating shaft 131, a turntable 132 and an eccentric crank 133. The rotating shaft 131 and the eccentric crank 133 are respectively connected to the two side surfaces of the turntable 132, and the rotating shaft 131 enters the shell 101 through an unlocking through hole provided in the shell 101 and is detachably connected to the unlocking device 138. The turntable 132 is located outside the shell 101.

[0082] As shown in Figure 3, if the electronic lock cannot be opened normally due to an abnormality, manual unlocking is achieved by rotating the unlocking mechanism 138 using the hand crank 130. The eccentric crank handle 133 makes rotating the unlocking mechanism 138 easier and more labor-saving, while the turntable 132 limits the specific position of the hand crank 130 relative to the unlocking mechanism 138, facilitating assembly of the electronic lock. The rotating shaft 131 is detachably connected to the unlocking mechanism 138, also simplifying assembly of the electronic lock.

[0083] At least one anti-rotation tooth 143 is provided on the outer peripheral wall of a free end of the unlocking device 138, and the rotating shaft 131 has a connecting cavity 145 opened at its free end, and the inner peripheral wall of the connecting cavity 145 is provided with an anti-rotation groove 144 matching the anti-rotation tooth 143; when there are multiple anti-rotation teeth 143, one anti-rotation tooth 143 among the multiple anti-rotation teeth 143 is significantly larger than the other anti-rotation teeth 143 to form a guide tooth 146, and a guide groove 147 matching the guide tooth 146 is provided in the multiple anti-rotation grooves 144, and the guide tooth 146 is aligned and plugged with the guide groove 147 to facilitate the insertion of the corresponding anti-rotation tooth 143 into the corresponding anti-rotation groove 144, so that the hand-cranked component 130 drives the unlocking device 138 to rotate coaxially, and at the same time realizes a detachable connection between the two.

[0084] In specific implementation, as shown in Figure 5, an annular component 142 is provided on the outside of the shell 101, and a receiving groove is provided in an annular manner on the inner circumferential wall of the annular component 142. The second sealing member 141 is matched and arranged in the receiving groove, and is clamped between the bottom wall of the receiving groove and the rotating shaft 131 to prevent water or impurities from entering the shell 101 through the unlocking through hole.

[0085] According to an embodiment of an electronic lock with a clutch unlocking mechanism disclosed herein, the lock rod 106 is provided with a rack 134 , and the output device 105 has an output gear 121 , which is engaged with the rack 134 .

[0086] The locking rod 106 can be moved between the unlocking position and the locking position by meshing the rack 134 with the output gear 121 .

[0087] 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 with a clutch unlocking mechanism, wherein: The invention comprises a housing, wherein the housing has: Drive device; A transmission device, the transmission device is in transmission connection with the driving device, and the transmission device is provided with an axially slidable clutch member; an output device, the output device being clutch-connected to the transmission device via the clutch member; a locking rod, the locking rod being drivingly connected to the output device and driven by the output device to reciprocate between an unlocking position and a locking position; An unlocking device, the unlocking device includes a pushing member with a cam structure and an unlocking gear with a half gear structure which are arranged in sequence along its axial direction. When the unlocking device rotates toward a first direction, the cam structure pushes the clutch member to disengage from the output device, and the half gear structure is transmission-connected to the output device to drive the locking rod to move to an unlocking position.

2. The electronic lock with a clutch unlocking mechanism according to claim 1, wherein: The pushing member is coaxially arranged with the unlocking device, and the cam structure is arranged on a side of the pushing member facing the clutch member; the cam structure includes a first end face, a second inclined face and a third end face that can contact the clutch member in sequence, the third end face is higher than the first end face, and the first end face transitions to the third end face via the second inclined face. When the pushing member rotates, the clutch member is pushed from the first end face to the third end face and generates axial displacement, thereby disengaging from the output device.

3. The electronic lock with a clutch unlocking mechanism according to claim 2, wherein: The half-gear structure is coaxially arranged with the unlocking device. When the third end face contacts the clutch member, the clutch member disengages from the output device, and the gear portion of the half-gear structure is meshed and connected with the output gear of the output device, driving the output gear to rotate to drive the locking rod to move to the unlocking position.

4. The electronic lock with a clutch unlocking mechanism according to claim 3, wherein: The unlocking device is radially provided with a protruding limiting piece, and a limiting rib is provided in the housing. When the third end surface contacts the clutch component and the locking rod moves to the unlocking position, the limiting piece abuts against the limiting rib.

5. The electronic lock with a clutch unlocking mechanism according to claim 2, wherein: A radially protruding reset drive gear is provided on the outer periphery of the clutch member, and a radially protruding reset transmission gear is provided on the outer periphery of the unlocking device. When the third end surface contacts the clutch member and the lock rod is in the unlocking position, the reset drive gear is meshed with the reset transmission gear, and the transmission device is connected to the unlocking device to drive the unlocking gear to rotate in a second direction opposite to the first direction, thereby driving the output gear of the output device to rotate, and the output gear drives the lock rod to move to the locking position.

6. The electronic lock with a clutch unlocking mechanism according to claim 5, wherein: The reset drive gear is partially arranged along the circumferential direction of the clutch member; the reset transmission gear is partially arranged along the circumferential direction of the unlocking device, and when the third end surface contacts the clutch member, the reset drive gear meshes with the reset transmission gear.

7. The electronic lock with a clutch unlocking mechanism according to claim 5, wherein: The reset transmission gear and the unlocking gear are respectively located on two sides of the pushing member.

8. The electronic lock with a clutch unlocking mechanism according to claim 2, wherein: A through keyway is arranged in the clutch component, and the output end of the transmission device has a first key shaft matching the keyway, and the keyway is sleeved on the first key shaft and can slide on the first key shaft.

9. The electronic lock with a clutch unlocking mechanism according to claim 8, wherein: The output device comprises a second key shaft and an output gear which are coaxially and spaced apart from each other, and the second key shaft is matched and connected with the key slot.

10. The electronic lock with a clutch unlocking mechanism according to claim 9, wherein: A guide portion is provided on one side of the second key shaft close to the transmission device, and the radial cross-sectional area of ​​the key teeth located on the guide portion gradually decreases toward an end close to the transmission device.

11. The electronic lock with a clutch unlocking mechanism according to claim 9, wherein: A return spring is arranged between the transmission device and the clutch member. When the return spring is in a natural state, the clutch member contacts the first end surface of the pushing member to connect the transmission device and the output device, so that the key slot simultaneously connects the first key shaft and the second key shaft.

12. The electronic lock with a clutch unlocking mechanism according to claim 9, wherein: The keyway, the first key shaft and the second key shaft are all splines.

13. The electronic lock with a clutch unlocking mechanism according to claim 11, wherein: The return spring is a compression spring and is sleeved on the outer periphery of the first key shaft of the transmission device.

14. The electronic lock with a clutch unlocking mechanism according to claim 1, wherein: The transmission device comprises a coaxially arranged transmission shaft and a transmission gear, and the driving device comprises a driving mechanism and a driving worm. The transmission gear meshes with the driving worm, so that the rotation of the driving mechanism is transmitted to the transmission shaft.

15. The electronic lock with a clutch unlocking mechanism according to claim 14, wherein: The transmission device further comprises a steering assembly, wherein the steering assembly comprises a steering worm wheel and a steering worm which are coaxially and spaced apart from each other, wherein the steering worm wheel is meshed with the driving worm, and the steering worm is meshed with the transmission gear.

16. The electronic lock with a clutch unlocking mechanism according to claim 1, wherein: The electronic lock also includes a hand-cranked component, which includes a rotating shaft, a turntable and an eccentric crank handle. The rotating shaft and the eccentric crank handle are respectively connected to the two side surfaces of the turntable. The rotating shaft enters the shell through an unlocking through hole set in the shell and is detachably connected to the unlocking device. The turntable is located outside the shell.

17. The electronic lock with a clutch unlocking mechanism according to claim 1, wherein: The locking rod is provided with a rack, and the output device has an output gear, which is meshed with the rack.

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