Split lock mechanism and device

Abstract

This disclosure relates to a split-type locking mechanism and device. The split-type locking mechanism includes a lock body and a transmission assembly. The lock body includes a first pull shaft for unlocking or locking by rotation. The transmission assembly includes a second pull shaft, one end of which is detachably connected to the first pull shaft, and the other end of which is connected to a drive device to drive the first pull shaft to rotate. The aforementioned split-type locking mechanism and device achieves switching between unlocking and locking states by detachably connecting the second pull shaft of the transmission assembly to the first pull shaft, and allowing the other end of the second pull shaft to be connected to a drive device to drive the first pull shaft to rotate. This allows for the installation of different transmission assemblies depending on the model of the drive device, eliminating the need to replace the lock body, thereby improving the adaptability of the locking mechanism and reducing its cost.

Description

Technical Field

[0001] This disclosure pertains to the field of battery swapping equipment, and in particular to a split-type locking mechanism and device. Background Technology

[0002] With the widespread adoption of battery swapping, battery swapping systems and related mechanisms are gradually being improved. Currently, the battery box of an electric vehicle needs to be locked to the vehicle's load-bearing area by a locking mechanism. However, during automatic battery swapping, the battery box needs to be unlocked quickly and easily. Therefore, unlocking equipment is required to lock or unlock the locking mechanism during operation.

[0003] However, due to the different manufacturers of existing locking mechanisms and drive devices, different types of locking mechanisms need to be set according to different drive devices, resulting in a wide variety of locking mechanism models and excessively high production costs. Summary of the Invention

[0004] In view of the above, it is necessary to provide a split-type locking mechanism and device that can be adapted to different types of drive devices.

[0005] Therefore, this disclosure first provides a split-type locking mechanism, including:

[0006] The lock body includes a first pull shaft for unlocking or locking by rotation;

[0007] The transmission assembly includes a second pull shaft, one end of which is detachably connected to the first pull shaft, and the other end of which is used to connect to a drive device to drive the first pull shaft to rotate.

[0008] According to the split locking mechanism, the side of the end of the second pull shaft for connecting the drive device has a slot extending along the length direction, and the drive device is inserted into the slot to drive the second pull shaft to rotate.

[0009] According to the split-type locking mechanism, the transmission assembly further includes a base and a rotation locking component, the rotation locking component comprising:

[0010] An axial hole extending through the second pull shaft in the length direction;

[0011] A first radial hole that extends radially and connects to the axial hole;

[0012] The locking element is located within the first radial hole;

[0013] A top pin that is movable in the axial direction within the axial hole, the side of the top pin facing the first radial hole having a recessed area for receiving the locking member;

[0014] When the drive device engages with the second pull shaft, the drive device pushes the top pin to move to the recessed area corresponding to the first radial hole, and the locking member disengages and retracts into the recessed area and disengages from the base.

[0015] According to the split locking mechanism, the rotation locking component further includes an elastic element, which abuts between the top pin and the first pull shaft, and is used to reset the top pin and push the locking member to insert into the base through the top pin.

[0016] According to the split locking mechanism, the base includes an unlocking hole and a locking hole arranged in a circumferential direction, and the locking member extends from the first radial hole and is inserted into the unlocking hole or the locking hole to lock the rotation of the second pull shaft and the first pull shaft.

[0017] According to the split locking mechanism, the locking member includes one or more balls. When the top pin moves to the position of the recessed area corresponding to the first radial hole, the balls exit from the unlocking hole or locking hole to unlock the rotation of the second pull shaft.

[0018] According to the split-type locking mechanism, the rotation locking component further includes:

[0019] A limiting groove is provided on the base, the limiting groove extends along the rotation direction of the second pull shaft, and its two ends correspond to the unlocking hole and the locking hole respectively;

[0020] A second radial hole is provided in the second pull shaft, the second radial hole extends along the radial direction of the second pull shaft and communicates with the axial hole;

[0021] A limiting member, located within the second radial hole and extending into the limiting groove, is used to limit the rotation angle of the second pull shaft.

[0022] According to the split locking mechanism, the limiting member includes a ball, which is located in the second radial hole and partially embedded in the limiting groove.

[0023] The split-type locking mechanism further includes a sealing ring disposed between the second pull shaft and the base.

[0024] In addition, this disclosure also provides a split-type locking device, including:

[0025] The aforementioned split-type locking mechanism;

[0026] The driving device includes a connector for engaging the end of the second pull shaft of the split locking mechanism, thereby driving the first pull shaft to rotate to unlock or lock.

[0027] According to the split locking device, the end side of the second pull shaft has a slot extending along the length direction, and the connector includes a snap-fit ​​portion, which is inserted into the slot to drive the second pull shaft to rotate.

[0028] According to the split-type locking device, the transmission assembly further includes a base and a rotation locking component. The rotation locking component includes an axial hole and a first radial hole. The axial hole extends through the second pull shaft along its length direction, and the first radial hole extends radially and communicates with the axial hole. The top pin is movably located within the axial hole along the axial direction, and the side of the top pin facing the first radial hole has a recessed area for receiving the locking member.

[0029] The connector includes a top head. When the driving device engages with the second pull shaft, the top head of the driving device pushes the top pin to move to the recessed area corresponding to the first radial hole, and the locking member disengages and retracts into the recessed area and disengages from the base.

[0030] Compared to existing technologies, the aforementioned split-type locking mechanism and device detachably connects the second pull shaft of the transmission component to the first pull shaft. The other end of the second pull shaft can be connected to the drive device to drive the first pull shaft to rotate, thereby realizing the switching between the unlocking and locking states of the locking mechanism. In this way, different transmission components can be installed according to the model of the drive device, eliminating the need to replace the lock body. This improves the adaptability of the locking mechanism and reduces its cost. Attached Figure Description

[0031] To more clearly illustrate the specific implementation methods, the accompanying drawings used in the description of the implementation methods will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a structural diagram of a split-type locking device.

[0033] Figure 2 This is a schematic diagram of the split-type locking mechanism in its disassembled state.

[0034] Figure 3 This is a cross-sectional structural diagram of a split-type locking mechanism.

[0035] Figure 4 This is a schematic diagram of the transmission assembly.

[0036] Figure 5 This is a schematic diagram of the second pull shaft.

[0037] Figure 6 This is a schematic diagram of the base structure.

[0038] Figure 7 This is a structural diagram of a connector.

[0039] Explanation of main component symbols

[0040]

[0041]

[0042] The following detailed embodiments will further illustrate this disclosure in conjunction with the above-described drawings. Detailed Implementation

[0043] To better understand the above-mentioned objectives, features, and advantages of this disclosure, the disclosure will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. Many specific details are set forth in the following description to provide a thorough understanding of this disclosure; the described embodiments are merely a part of the embodiments of this disclosure, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure.

[0045] In various embodiments, for ease of description and not limitation of this disclosure, the term "connection" used in the patent application specification and claims is not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "below," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship also changes accordingly.

[0046] Figure 1 This is a structural diagram of a split-type locking device. (Example) Figure 1As shown, the split-type locking device includes a split-type locking mechanism 1 and a drive device 2. The locking mechanism 1 can be installed in any of the following locations: the battery box, the vehicle's onboard area, or the battery rack. The locking mechanism 1 locks the battery box to or unlocks it from the vehicle's onboard area or battery rack through locking or unlocking actions. The drive device 2 is movably connected to the locking mechanism 1. When unlocking or locking is required, the drive device 2 engages with the locking mechanism 1 to perform the locking or unlocking operation. In this embodiment, the locking mechanism 1 is a rotary locking mechanism 1. After the drive device 2 engages with the locking mechanism 1, it drives the components of the locking mechanism 1 to rotate, thereby achieving locking or unlocking.

[0047] Figure 2 This is a schematic diagram of the split-type locking mechanism 1 in its disassembled state. Figure 3 This is a cross-sectional structural diagram of the split-type locking mechanism 1. (See diagram below.) Figure 2 and Figure 3 As shown, the split-type locking mechanism 1 includes a lock body and a transmission assembly 20. The lock body is used to lock or unlock other components, and the transmission assembly 20 is used to connect to the drive device 2, thereby driving the lock body to move and achieve unlocking or locking.

[0048] In this embodiment, the lock body includes a first pull shaft 10, which is driven to rotate to unlock or lock. As an example, in this embodiment, the first pull shaft 10 is generally T-shaped, with one or more locking pins 11 on its upper part. During unlocking or locking, rotating the first pull shaft 10 causes the locking pins 11 to rotate relative to the lock head (not shown in the figure) at different angles. Thus, when the first pull shaft 10 rotates to the unlock position (e.g., to a position with an angle of 0 degrees), the locking pins 11 correspond to the irregular hole of the lock head, allowing them to disengage from the lock head and complete the locking operation. When the first pull shaft 10 rotates to the locking position (e.g., to a position with an angle of 90 degrees), the locking pins 11 rotate to a position intersecting with the irregular hole, for example, a position perpendicular to the irregular hole, allowing them to hook onto the lock head and complete the locking action.

[0049] The existing lock body is directly connected to the drive device 2 via the first pull shaft 10, and the drive device 2 directly drives the first pull shaft 10 to rotate. However, in the process of implementing this locking mechanism 1, the inventors found that since the locking mechanism 1 and the drive device 2 are generally manufactured by different manufacturers, different types of first pull shafts 10 are required for different drive devices 2, resulting in a large number of types of locking mechanisms 1 and high production and maintenance costs. To address this, this application uses a transmission component 20 to transfer the power transmission of the drive device 2. In use, only the corresponding transmission component 20 needs to be replaced for different drive devices 2, while the lock body can be mass-produced, thereby effectively reducing the number of locking mechanism 1 models.

[0050] Figure 4 This is a schematic diagram of the transmission assembly 20. (See attached diagram.) Figure 3 and Figure 4 As shown, the transmission assembly 20 includes a base 21, a second pull shaft 22, and a rotation locking component. The base 21 houses the first pull shaft 10 and the second pull shaft 22, particularly the connection point between them, serving to protect and support them. The second pull shaft 22 transmits power from the drive device 2 to rotate the first pull shaft 10. The rotation locking component connects to the second pull shaft 22, providing a secondary locking function to prevent accidental rotation of the second pull shaft 22.

[0051] Figure 5 This is a schematic diagram of the structure of the second pull shaft 22. (See diagram below.) Figure 3 and Figure 5 As shown, the second pull shaft 22 is generally cylindrical, with one end detachably connected to the first pull shaft 10, and the other end used to engage with the drive device 2 to drive the first pull shaft 10 to rotate. Specifically, one end (i.e., the top end) of the second pull shaft 22 has a step, which coaxially engages with the first pull shaft 10, allowing the first pull shaft 10 and the second pull shaft 22 to rotate synchronously. The side of the end of the second pull shaft 22 used to connect to the drive device 2 has a slot 223 extending along the length direction, into which the drive device 2 is inserted to drive the second pull shaft 22 to rotate. In this embodiment, the bottom of the second pull shaft 22 can be a cylindrical structure, or a rectangular or other irregularly shaped cylindrical structure. For ease of description, the side of the bottom of the second pull shaft 22 is referred to as the "lower end face," and the surface of the bottom of the second pull shaft 22 that is parallel or substantially parallel to the length direction is referred to as the "side face." The slot 223 is open on the side face, and the length direction of the slot 223 is preferably parallel or substantially parallel to the length direction of the second pull shaft 22. In this way, in the case of ice formation in winter, the drive device 2 can remove the ice in the slot 223 during the process of extending into the slot 223, thus avoiding the problem of docking failure due to ice formation in winter.

[0052] Figure 6 This is a structural schematic diagram of base 21. (See diagram below.) Figure 6 As shown, the base 21 is generally block-shaped with a through cavity 215 in the middle. In some embodiments, to prevent dust and moisture from entering the lock body, the base 21 may also include a top cover 211, which can be connected to the base 21 by screws or bolts and other connectors to seal the cavity 215.

[0053] The rotation locking component is used to lock the second pull shaft 22 to prevent the second pull shaft 22 and the first pull shaft 10 from rotating due to misoperation or vibration. Specifically, the rotation locking mechanism 1 includes an unlocking hole 212, a locking hole 213, and a limiting groove 214, as well as an axial hole 222, a first radial hole 224, a second radial hole 225, a limiting member 26, a locking member 25, a top pin 23, and an elastic member 24. The unlocking hole 212, the locking hole 213, and the limiting groove 214 are located on the inner wall of the cavity 215 of the base 21; the axial hole 222, the first radial hole 224, and the second radial hole 225 are located on the second pull shaft 22; and the top pin 23 and the elastic member 24 are located between the first pull shaft 10 and the second pull shaft 22.

[0054] Specifically, such as Figure 4 and Figure 6 As shown, the inner wall of the cavity 215 of the base 21 is provided with an unlocking hole 212 and a locking hole 213 along the circumferential direction. For example, the unlocking hole 212 corresponds to the unlocking position of the second pull shaft 22, and the locking hole 213 corresponds to the locking position of the second pull shaft 22. The angle between the unlocking hole 212 and the locking hole 213 is 90 degrees, and they are recessed into the inner wall of the cavity 215. However, the relative positions of the unlocking hole 212 and the locking hole 213 can be set as needed. The unlocking hole 212 and the locking hole 213 can be holes, or they can be grooves extending along the length direction. Those skilled in the art can determine the specific structure of the unlocking hole 212 and the locking hole 213 based on the processing method or other factors. A limiting groove 214 is provided on the inner wall of the cavity 215 of the base 21, extending along the rotation direction of the second pull shaft 22, and its two ends correspond to the unlocking hole 212 and the locking hole 213, respectively. Specifically, the limiting groove 214 is a groove extending along the circumference of the cavity 215, and the two ends of the limiting groove 214 correspond to the unlocking hole 212 and the locking hole 213, respectively.

[0055] like Figure 3 and Figure 5As shown, the second pull shaft 22 has an axial hole 222, a first radial hole 224, and a second radial hole 225 inside. In this embodiment, the axial hole 222 is a blind hole, opening towards the end of the first pull shaft 10 and extending along the axial direction of the second pull shaft 22. The first radial hole 224 and the second radial hole 225 are located at the top of the second pull shaft 22, opening towards the side of the second pull shaft 22, and the other end extends along the direction of travel of the second pull shaft 22 and communicates with the axial hole 222.

[0056] like Figure 3 and Figure 4 As shown, the locking member 25 extends from the first radial hole 224 and inserts into the unlocking hole 212 or the locking hole 213 to lock the rotation of the second pull shaft 22 and the first pull shaft 10. The locking member 25 includes one or more ball bearings. When the top pin 23 moves to the position of the recessed area 231 corresponding to the first radial hole 224, the ball bearings retract from the unlocking hole 212 or the locking hole 213 to unlock the rotation of the second pull shaft 22. As an example, in this embodiment, the locking member 25 includes two ball bearings, which are disposed within the first radial hole 224, and their outer diameter is approximately equivalent to the inner diameter of the first radial hole 224.

[0057] like Figure 2 and Figure 3 As shown, the top pin 23 is generally rod-shaped, with a boss protruding radially at the top. Below the boss, a recessed area 231 with a radial length less than the boss is formed. The recessed area 231 is located on the side of the top pin 23 facing the first radial hole 224 and is used to receive the locking member 25. The top pin 23 is movably located within the axial hole 222 of the second pull shaft 22 in the axial direction. It can move back and forth in the axial direction of the axial hole 222 under the action of external force, pushing the locking member 25 out of the first radial hole 224 or receiving part of the locking member 25 through the recessed area 231.

[0058] When the driving device 2 engages with the second pull shaft 22, the driving device 2 pushes the top pin 23 to move to the recessed area 231 corresponding to the first radial hole 224, and the locking member 25 disengages and retracts into the recessed area 231, thus disengaging from the base 21. Specifically, the locking member 25 can extend from the first radial hole 224 into the unlocking hole 212 or the locking hole 213 under the push of the top pin 23, thereby preventing the second pull shaft 22 from rotating; furthermore, when the recessed area 231 of the top pin 23 is located in the position of the first radial hole 224, the locking member 25 can partially retract into the recessed area 231, thereby exiting from the unlocking hole 212 or the locking hole 213. At this time, the second pull shaft 22 can rotate because the blocking of the locking member 25 has been released, realizing the unlocking operation.

[0059] Similarly, the limiting member 26 is located within the second radial hole 225 and extends into the limiting groove 214 to limit the rotation angle of the second pull shaft 22. In this embodiment, the limiting member 26 includes a ball bearing located within the second radial hole 225 and partially embedded in the limiting groove 214. In this embodiment, the limiting member 26 is partially embedded in the limiting groove 214 and partially embedded in the second radial hole 225. During the rotation of the top pin 23, the limiting member 26 rotates between the limiting groove 214 and the second radial hole 225. When the rotation angle of the second pull shaft 22 exceeds the range of the limiting groove 214, the second pull shaft 22 is stopped by the limiting member 26 and cannot rotate. Therefore, the second pull shaft 22 can only rotate within the range of the limiting groove 214 and cannot rotate beyond the range of the limiting groove 214, thus limiting the rotation range of the second pull shaft 22.

[0060] In order to reset the top pin 23, in this embodiment, the rotation locking component further includes an elastic element 24, which may be a spring, abutting between the top pin 23 and the first pull shaft 10, for resetting the top pin 23 and pushing the locking element 25 to insert into the base 21 through the top pin 23.

[0061] Please refer to the previous document. Figure 3 In order to improve the sealing performance of the locking mechanism 1, in this embodiment, a sealing ring is provided in the circumferential direction between the base 21 and the first pull shaft 10, a first sealing ring 232 is provided between the top pin 23 and the second pull shaft 22, and a second sealing ring 221 can also be provided between the base 21 and the second pull shaft 22, thereby effectively improving the sealing performance of the locking mechanism 1.

[0062] Figure 7 This is a structural schematic diagram of the connector 30. (See attached diagram.) Figure 7 As shown, the driving device 2 includes a connector 30, which is used to engage with the end of the second pull shaft 22 of the split locking mechanism 1, thereby driving the first pull shaft 10 to rotate to unlock or lock via the second pull shaft 22. Specifically, the connector 30 includes a snap-fit ​​portion 31 and a top head 32. The connector 30 engages with the slot 223 via the snap-fit ​​portion 31 to drive the second pull shaft 22 to rotate. The top head 32 extends axially and is located at the end of the connector 30. When the driving device 2 engages with the second pull shaft 22, the top head 32 of the driving device 2 pushes the top pin 23 to move to the recessed area 231 corresponding to the first radial hole 224, and the locking member 25 disengages and retracts into the recessed area 231 and disengages from the base 21.

[0063] When unlocking is required, the drive device 2 approaches the second pull shaft 22, and the locking part 31 is inserted into the slot 223 at the bottom of the second pull shaft 22. At the same time, the top head 32 pushes the top pin 23 upward to move and compress the elastic member 24. After the top pin 23 moves upward, the recessed area 231 of the top pin 23 moves to the position of the first radial hole 224. The locking member 25 loses its thrust and can be withdrawn from the locking hole 213, partially moving to the position of the recessed area 231, thereby realizing the unlocking operation of the second pull shaft 22.

[0064] Then, the coupling 30 of the drive device 2 drives the second pull shaft 22 to rotate, and the second pull shaft 22 drives the first pull shaft 10 to rotate until the locking pin 11 is in the unlocked position. During the rotation of the second pull shaft 22, the limiting member 26 moves within the limiting groove 214, rotating from one end of the limiting groove 214 to the other end, until the locking member 25 rotates to the position corresponding to the unlocking hole 212. At this time, since the limiting member 26 has moved to the end position of the limiting groove 214 and cannot continue to rotate, excessive rotation of the first pull shaft 10 and the second pull shaft 22 can be prevented.

[0065] Finally, the drive device 2 disengages from the second pull shaft 22, and the elastic element 24 pushes the top pin 23 downward to reset. The recessed area 231 of the top pin 23 moves away from the position corresponding to the first radial hole 224, pushing the locking element 25 along the direction of the first radial hole 224 to a position partially located in the unlocking hole 212, thus completing the unlocking operation. The locking operation is similar to the unlocking operation and will not be described in detail here.

[0066] The aforementioned split-type locking mechanism 1 and device detachably connect the second pull shaft 22 of the transmission component 20 to the first pull shaft 10. The other end of the second pull shaft 22 can be connected to the drive device 2 to drive the first pull shaft 10 to rotate, thereby achieving the switching between the unlocking and locking states of the locking mechanism 1. In this way, different transmission components 20 can be installed according to the model of the drive device 2, eliminating the need to replace the lock body, thus improving the adaptability of the locking mechanism 1 and reducing its cost. Moreover, the limiting member 26 rotates within the limiting groove 214 during rotation, and the circumferential length of the limiting groove 214 limits the rotation angle of the second pull shaft 22, preventing the second pull shaft 22 from over-rotating during unlocking or locking and failing to enter the locking or unlocking state.

[0067] When it is necessary to assemble locking mechanism 1, see Figure 2 and Figure 3Insert the locking member 25 and the limiting member 26 into the first radial hole 224 and the second radial hole 225 respectively. Then, insert the second pull shaft 22 into the cavity 215 of the base 21 from above. Insert the top pin 23 into the axial hole 222 from above the second pull shaft 22. Place the elastic member 24 above the top pin 23. Finally, install the first pull shaft 10 and the top cover 211 on the base 21 to complete the installation of the entire locking mechanism 1.

[0068] Therefore, since the second pull shaft 22 and the first pull shaft 10 are of a separate structure, the top pin 23 can be inserted into the second pull shaft 22 from above. This eliminates the need for a recessed area on the lower end face of the second pull shaft 22 for mounting the top pin 23, thus preventing moisture from freezing on the lower end face and causing unlocking or locking operations to fail. Furthermore, in this embodiment, the slot 223 of the second pull shaft 22 can be located on the side of the second pull shaft 22 instead of its end face. During docking with the drive device 2, the engaging part 31 of the drive device 2 can be inserted into the slot 223. Even if the slot 223 is frozen, the engaging part 31 can remove the ice without causing docking failure.

[0069] In the several specific embodiments provided in this disclosure, it will be apparent to those skilled in the art that this disclosure is not limited to the details of the exemplary embodiments described above, and that this disclosure can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of this disclosure is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be embraced within this disclosure. Furthermore, it is clear that the word "comprising" does not exclude other units or steps, and the singular does not exclude the plural. Terms such as "first," "second," etc., are used to denote names and do not indicate any particular order.

[0070] The above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solutions of this disclosure should not depart from the spirit and scope of the technical solutions of this disclosure.

Claims

1. A split lock mechanism, characterized by, include: The lock body includes a first pull shaft for unlocking or locking by rotation; The transmission assembly includes a second pull shaft, one end of which is detachably connected to the first pull shaft, and the other end of which is used to connect to a drive device to drive the first pull shaft to rotate. The transmission assembly further includes a base and a rotation locking component, the rotation locking component comprising: An axial hole extending through the second pull shaft in the length direction; A first radial hole that extends radially and connects to the axial hole; The locking element is located within the first radial hole; A top pin that is movable in the axial direction within the axial hole, the side of the top pin facing the first radial hole having a recessed area for receiving the locking member; When the drive device engages with the second pull shaft, the drive device pushes the top pin to move to the recessed area corresponding to the first radial hole, and the locking member disengages and retracts into the recessed area and disengages from the base.

2. The split lock mechanism of claim 1, wherein The side of the end of the second pull shaft for connecting to the drive device has a slot extending along the length direction, into which the drive device is inserted to drive the second pull shaft to rotate.

3. The split lock mechanism of claim 2, wherein The rotation locking component also includes an elastic element, which abuts between the top pin and the first pull shaft, and is used to reset the top pin so that the locking element can be pushed into the base by the top pin.

4. The split lock mechanism of claim 3, wherein The base includes an unlocking hole and a locking hole arranged in a circumferential direction. The locking member extends from the first radial hole and is inserted into the unlocking hole or the locking hole to lock the rotation of the second pull shaft and the first pull shaft.

5. The split lock mechanism of claim 4, wherein, The locking element includes one or more balls. When the top pin moves to the position of the recessed area corresponding to the first radial hole, the balls retract from the unlocking hole or locking hole to unlock the rotation of the second pull shaft.

6. The split lock mechanism of claim 4, wherein The rotation locking component further includes: A limiting groove is provided on the base, the limiting groove extends along the rotation direction of the second pull shaft, and its two ends correspond to the unlocking hole and the locking hole respectively; A second radial hole is provided in the second pull shaft, the second radial hole extends along the radial direction of the second pull shaft and communicates with the axial hole; A limiting member, located within the second radial hole and extending into the limiting groove, is used to limit the rotation angle of the second pull shaft.

7. The split lock mechanism of claim 6, wherein, The limiting member includes a ball bearing located within the second radial hole and partially embedded in the limiting groove.

8. The split lock mechanism of claim 6, wherein, It also includes a sealing ring disposed between the second pull shaft and the base.

9. A split lock device, characterized by include: The split locking mechanism as described in any one of claims 1-8; The driving device includes a connector for engaging the end of the second pull shaft of the split locking mechanism, thereby driving the first pull shaft to rotate to unlock or lock.

10. The split lock apparatus of claim 9, wherein, The end side of the second pull shaft has a groove extending along the length direction, and the connector includes a snap-fit ​​portion. The connector is inserted into the groove through the snap-fit ​​portion to drive the second pull shaft to rotate.

11. The split lock apparatus of claim 10, wherein, The transmission assembly further includes a base and a rotation locking component. The rotation locking component includes an axial hole and a first radial hole. The axial hole extends through the second pull shaft along its length direction, and the first radial hole extends radially and communicates with the axial hole. The top pin is movably located within the axial hole along the axial direction, and the side of the top pin facing the first radial hole has a recessed area for receiving the locking member. The connector includes a top head. When the driving device engages with the second pull shaft, the top head of the driving device pushes the top pin to move to the recessed area corresponding to the first radial hole, and the locking member disengages and retracts into the recessed area and disengages from the base.

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