Locking and unlocking device

Abstract

The utility model discloses a kind of locking and unlocking devices. Locking and unlocking device includes telescopic drive component, guide rail, slider and dial block;Telescopic drive component includes body and telescopic rod;Guide rail is fixedly arranged relative to body, and the length direction of guide rail extends along setting direction;Slider is connected to telescopic rod, and slider is slidably connected to guide rail along setting direction;Dial block is connected to slider, and dial block has two abutting arms, two abutting arms are used to be respectively arranged in the two sides of the dialing part of battery locking mechanism, so that dial block can be moved along setting direction by dialing part to push battery locking mechanism. Thus, dial block has two abutting arms, two abutting arms are respectively arranged in the two sides of the dialing part along setting direction, so that dial block can effectively push the movement of battery locking mechanism along setting direction;In addition, dial block is directly driven to move along setting direction by telescopic drive component, and locking and unlocking device has less number of components, and simple structure.

Description

Technical Field

[0001] This utility model relates to the field of vehicles, and more specifically to an unlocking / unlocking device. Background Technology

[0002] With the development and popularization of new energy vehicles, the number of battery-swapping models is increasing, which puts forward higher and higher requirements for the number of battery-swapping stations, construction costs, and battery-swapping efficiency.

[0003] Currently, the locking and unlocking devices for new energy vehicle battery packs in battery swapping stations include a motor, guide rail, synchronous belt, unlocking rod, and battery locking mechanism. The motor drives the synchronous belt, which in turn moves the unlocking rod, thus acting on the battery locking mechanism to lock and unlock the battery. This system is complex, costly, and space-consuming, making it unsuitable for deployment in space-constrained battery swapping vehicles.

[0004] Therefore, this utility model provides an unlocking / unlocking device to at least partially solve the above-mentioned problems. Utility Model Content

[0005] The utility model description section introduces a series of simplified concepts, which will be further described in detail in the detailed embodiments section. This utility model description section is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0006] To at least partially solve the above-mentioned technical problems, this utility model provides an unlocking device for moving a battery locking mechanism installed in a vehicle to lock and unlock the battery pack installed in the vehicle. The unlocking device includes:

[0007] A telescopic drive assembly includes a body and a telescopic rod, the telescopic rod being movably connected to the body relative to the body along a setting direction parallel to the length direction of the telescopic rod;

[0008] The guide rail is fixedly installed relative to the main body, and its length extends along the setting direction.

[0009] A slider is connected to a telescopic rod, and the slider is slidably connected to a guide rail along a set direction;

[0010] The toggle block is connected to the slider. The toggle block has two abutment arms spaced apart along the set direction. The two abutment arms are respectively set on both sides of the actuating part of the battery locking mechanism so that the toggle block can push the battery locking mechanism to move along the set direction through the actuating part.

[0011] According to the unlocking device of this utility model, the lever has two abutting arms, which are respectively arranged on both sides of the lever part along the setting direction, so that the lever can effectively push the battery locking mechanism to move along the setting direction; in addition, the lever is directly driven to move along the setting direction by the telescopic drive assembly. The unlocking device has fewer parts, simple structure, and low cost, and the vertical dimension of the unlocking device is reduced, which is convenient for arrangement in battery swapping trolleys with limited space.

[0012] Optionally, the toggle block also includes a base arm, with both abutment arms connected to the base arm.

[0013] Optionally, along the setting direction, the minimum distance between the two abutment arms is 1.5 to 2.5 times the maximum size of the actuating part.

[0014] Optionally, a pushing part is provided at the free end of the abutment arm away from the bottom arm. The projection structure of the pushing part on a first projection plane perpendicular to the thickness direction of the abutment arm is a first gradient structure. The first gradient structure has a first gradient small end and a first gradient large end arranged sequentially along the length direction of the abutment arm. The size of the first gradient structure gradually increases from the first gradient small end to the first gradient large end along the setting direction. Along the length direction of the abutment arm, the part of the pushing part corresponding to the first gradient small end is closer to the bottom arm than the part of the pushing part corresponding to the first gradient large end. Along the setting direction, the part of the first gradient large end that is closer to another abutment arm is closer to another abutment arm than the part of the first gradient small end that is connected to it that is closer to another abutment arm.

[0015] Optionally, the projection structure of the pushing part on the second projection plane perpendicular to the setting direction is a second gradient structure. The second gradient structure has a second gradient small end and a second gradient large end arranged sequentially along the length direction of the abutment arm. The dimension of the second gradient structure along the thickness direction of the abutment arm gradually increases from the second gradient small end to the second gradient large end. Along the length direction of the abutment arm, the portion of the pushing part corresponding to the second gradient small end is further away from the bottom arm than the portion of the pushing part corresponding to the second gradient large end.

[0016] Optionally, the unlocking device also includes a connector, the bottom arm being detachably connected to the connector, and the connector being detachably connected to the slider.

[0017] Optionally, the base arm has a mounting groove and a mounting hole provided on the bottom surface of the mounting groove. The unlocking device also includes a fastener, the shank of which passes through the mounting hole and is threaded to the connector. The head of the fastener is located inside the mounting groove and does not protrude from the mounting groove.

[0018] Optionally, the connector includes a first wall and a second wall, wherein the plane containing the first wall intersects with the plane containing the second wall.

[0019] The first wall sticker is connected to the bottom arm, and the second wall sticker is connected to the slider.

[0020] Optionally, one end of the first wall is connected to one end of the second wall, and there is a gap between the other end of the first wall and the second wall, with the slider positioned at the gap.

[0021] Optionally, the telescopic drive assembly includes an electric actuator; and / or

[0022] The telescopic pole has a pole body and a connecting flange located at the free end of the pole body. The connecting flange extends radially outward from the outer side of the outer circumference of the pole body. The connector has a first groove segment and a second groove segment whose dimensions increase sequentially along the radial direction of the telescopic pole. The first groove segment and the second groove segment are sequentially arranged and connected along the setting direction. The pole body is located in the first groove segment, and the connecting flange is located in the second groove segment. Along the setting direction, the dimension of the second groove segment is larger than the dimension of the connecting flange.

[0023] According to the unlocking device of this utility model, the lever pushes the actuating part through two abutting arms, thereby effectively driving the movement of the battery locking mechanism along the setting direction. Furthermore, the lever is directly driven to move along the setting direction by a telescopic drive assembly. The unlocking device has fewer parts, a simpler structure, and lower cost, reducing its vertical dimensions and facilitating its placement in space-constrained battery swapping trolleys. The first gradient structure of the pushing part has more volume at its larger end for wear and tear, increasing the service life of the pushing part. The second gradient structure of the pushing part, where the first gradient structure contacts the actuating part at its smaller end, reduces the contact area between the actuating part and the abutting arms, thus reducing wear on the actuating part. Attached Figure Description

[0024] To make the advantages of this invention more readily apparent, the invention briefly described above will be described in more detail with reference to the specific embodiments shown in the accompanying drawings. It should be understood that these drawings depict only typical embodiments of the invention and should not be construed as limiting its scope of protection. The invention is described and explained with additional features and details through the drawings.

[0025] Figure 1 This is a perspective view of an unlocking / unlocking device and a battery locking mechanism used in cooperation according to a preferred embodiment of the present invention, wherein the battery locking mechanism is in the unlocked state;

[0026] Figure 2 for Figure 1 A front view diagram of the locking / unlocking device and the battery locking mechanism in use, wherein the battery locking mechanism is in the unlocked state and the guide rail is not shown;

[0027] Figure 3 for Figure 1 A partially enlarged schematic diagram of point A, where the unlocking / unlocking device and the battery locking mechanism work together;

[0028] Figure 4 for Figure 2 A partially enlarged schematic diagram of point B, showing the cooperation between the unlocking / unlocking device and the battery locking mechanism; and

[0029] Figure 5 for Figure 1 A front view diagram showing the locking and unlocking device and the battery locking mechanism working together, wherein the battery locking mechanism is in the locked state, and the telescopic drive assembly, guide rail, slider and connector are not shown.

[0030] Explanation of reference numerals in the attached figures

[0031] 100: Battery locking mechanism; 101: Locking linkage.

[0032] 102: Lock base; 103: Hinge component

[0033] 104: Actuating part; 110: Telescopic drive assembly

[0034] 111: Main body; 112: Telescopic rod

[0035] 113: Rod body; 114: Connecting flange.

[0036] 120: Guide rail; 121: Slider

[0037] 130: Pulley 131: Abutment Arm

[0038] 132: Base arm; 133: Mounting slot

[0039] 134: Propulsion Unit 135: Second Inclined Surface

[0040] 136: First inclined surface; 137: Groove;

[0041] 140: Connector 141: First Wall

[0042] 142: Second wall; 143: Connecting groove

[0043] 144: First section 145: Second section

[0044] 150: Fasteners 160: Frame Detailed Implementation

[0045] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that embodiments of the present invention may be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with embodiments of the present invention.

[0046] The preferred embodiments of this utility model will now be described with reference to the accompanying drawings. It should be noted that the terms "upper," "lower," and similar expressions used herein are for illustrative purposes only and are not intended to be limiting.

[0047] In this document, ordinal numbers such as “first” and “second” used in this invention are merely identifiers and do not include any other meaning, such as a specific order.

[0048] To fully understand the embodiments of this utility model, a detailed structure will be presented in the following description. Obviously, the implementation of the embodiments of this utility model is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of this utility model are described in detail below; however, in addition to these detailed descriptions, this utility model may also include other embodiments.

[0049] This invention provides a locking and unlocking device. The device can be used for replacing vehicle battery packs, such as at a battery swapping station. The device is used to lock and unlock the battery pack installed in a vehicle. When locked (with the battery locking mechanism in the locked state), the battery pack is locked to the vehicle body. When unlocked (with the battery locking mechanism in the unlocked state), the lock between the battery pack and the vehicle body is released, allowing the battery pack to detach from the vehicle body.

[0050] Please refer to Figures 1 to 5 The vehicle body is equipped with a battery locking mechanism 100. A battery pack (not shown) is equipped with a locking shaft. The battery locking mechanism 100 includes a locking link 101, a locking base 102, and a hinge 103. The locking base 102 is provided with a locking groove. The locking base 102 is fixedly mounted to the vehicle body. The locking link 101 is a straight rod. The length direction of the straight rod is parallel to the setting direction D1. One end of the hinge 103 is rotatably connected to the locking base 102 via a first pivot (not shown). The other end of the hinge 103 is rotatably connected to the locking link 101 via a second pivot. Thus, the hinge 103 is rotatable relative to the locking link 101 about the axis of the second pivot. The hinge 103 is rotatable relative to the locking base 102 about the axis of the first pivot. When the battery pack is mounted on the vehicle body, the axial direction of the locking shaft, the axial direction of the first pivot, and the axial direction of the second pivot are parallel.

[0051] Please continue to refer to this. Figures 1 to 5The battery locking mechanism 100 also includes a toggle part 104. A portion of the toggle part 104 is located below the lower surface of the locking rod 101. The toggle part 104 is connected to the locking rod 101. The locking rod 101 is movable along a setting direction D1. The setting direction D1 can be parallel to the horizontal direction. When the locking rod 101 moves along the setting direction D1, it drives the hinge member 103 to rotate about the axis of the first pivot. Due to the action of the hinge member 103, the locking rod 101 moves both along the setting direction D1 and vertically.

[0052] When the battery pack is installed on the vehicle body, the locking shaft is located within the locking groove. The hinge 103, which rotates around the first pivot, can lock or disengage the locking shaft. When the hinge 103 locks the locking shaft, the battery pack is locked to the vehicle body (locked). When the hinge 103 disengages from the locking shaft, the locking of the locking shaft is released, thereby releasing the lock between the battery pack and the vehicle body, allowing the battery pack to detach from the vehicle body (unlocked).

[0053] The locking and unlocking device in this embodiment is used to push the toggle part 104 to move along the setting direction D1, thereby locking and unlocking the battery pack installed on the vehicle body.

[0054] like Figures 1 to 5 As shown, the unlocking / unlocking device includes a frame 160 and a telescopic drive assembly 110. The telescopic drive assembly 110 includes a body 111 and a telescopic rod 112. The telescopic rod 112 is movably connected to the body 111 relative to the body 111 along a setting direction D1. The length direction of the telescopic rod 112 is parallel to the setting direction D1. Thus, the telescopic rod 112 is telescopic along the setting direction D1. The body 111 is fixedly connected to the frame 160.

[0055] The locking / unlocking device also includes a guide rail 120 and a slider 121. The guide rail 120 is fixedly mounted on the frame 160. Thus, the guide rail 120 is fixedly mounted relative to the body 111. The length direction of the guide rail 120 extends along the setting direction D1.

[0056] The slider 121 is connected to the telescopic rod 112. Thus, when the telescopic rod 112 moves along the setting direction D1, it drives the slider 121 to move along the setting direction D1. The slider 121 is slidably connected to the guide rail 120 along the setting direction D1. Thus, the guide rail 120 and the slider 121 cooperate to guide the movement of the slider 121 along the setting direction D1.

[0057] The unlocking device also includes a toggle block 130. The toggle block 130 is connected to the slider 121. Thus, the slider 121 can drive the toggle block 130 to move along the setting direction D1. The toggle block 130 is positioned below the locking linkage 101. The toggle block 130 has two abutment arms 131. The two abutment arms 131 are spaced apart along the setting direction D1. The two abutment arms 131 are respectively located on both sides of the toggle part 104 along the setting direction D1.

[0058] When the actuating part 104 is located between the two abutting arms 131, the toggle block 130, which moves along the setting direction D1, can push the actuating part 104 to move in opposite directions through the two abutting arms 131 respectively, thereby locking and unlocking the battery pack installed on the vehicle body.

[0059] In this embodiment, the lever 130 has two abutment arms 131, which are respectively disposed on both sides of the lever part 104 along the setting direction D1, so that the lever 130 can effectively push the battery locking mechanism 100 to move along the setting direction D1. In addition, the lever 130 is directly driven to move along the setting direction D1 by the telescopic drive assembly 110. The number of parts of the locking and unlocking device is small, the structure is simple, the cost is low, and the vertical dimension of the locking and unlocking device is reduced, which is convenient for the battery swapping trolley with limited space.

[0060] Optionally, such as Figure 3 and Figure 4 As shown, the lever 130 also includes a base arm 132. Both abutment arms 131 are connected to the base arm 132 to form a groove 137. The groove 137 is used to accommodate the actuating part 104. Thus, the unlocking / unlocking device has a simple structure.

[0061] Furthermore, the two abutment arms 131 and the bottom arm 132 form a roughly U-shaped structure. Thus, the structure of the toggle block 130 is simple.

[0062] Optionally, the frame 160 is movably mounted vertically. The battery swapping station is equipped with a battery swapping trolley for transporting battery packs. The frame 160 is movably mounted on the battery swapping trolley. For example, a lifting platform can be provided. A support frame is mounted on the lifting platform so that it can move vertically.

[0063] Along the setting direction D1, the minimum distance between the two abutment arms 131 is 1.5 to 2.5 times the maximum size of the actuating part 104. When it is necessary to lock and unlock the battery pack installed on the vehicle body, the battery swapping trolley needs to be moved to the bottom of the vehicle body, and the frame 160 needs to be moved vertically to move the abutment arms 131 upward to the actuating part 104, so that the actuating part 104 is located between the two abutment arms 131. Thus, when the frame 160 moves vertically, it is convenient to position the actuating part 104 between the two abutment arms 131.

[0064] Alternatively, please continue to refer to Figure 3 and Figure 4 A pushing part 134 is provided at the free end of the abutment arm 131 away from the bottom arm 132.

[0065] Optionally, such as Figure 4As shown, the projection structure of the pushing part 134 on the first projection plane is a first gradient structure. The first projection plane is perpendicular to the thickness direction D3 of the abutment arm 131. The first gradient structure has a first gradient small end and a first gradient large end. The first gradient small end and the first gradient large end are arranged sequentially along the length direction D2 of the abutment arm 131. The size of the first gradient structure gradually increases from the first gradient small end toward the first gradient large end along the setting direction D1. Along the length direction D2 of the abutment arm 131, the portion of the pushing part 134 corresponding to the first gradient small end is closer to the bottom arm 132 than the portion of the pushing part 134 corresponding to the first gradient large end. Along the setting direction D1, the portion of the first gradient large end of one abutment arm 132 that is closer to another abutment arm 131 is closer to the other abutment arm 131 than the portion of the first gradient small end of that abutment arm 132 that is closer to the other abutment arm 131. Thus, the first gradient large end is used to contact and push the actuating part 104. The length direction D2 and the setting direction D1 of the abutment arm 131 are both perpendicular to the thickness direction D3 of the abutment arm 131. The length direction D2 of the abutment arm 131 extends vertically. As a result, the portion of the first tapered large end that protrudes from the first tapered small end along the setting direction D1 wears out preferentially, increasing the service life of the pusher 134.

[0066] Furthermore, the pushing part 134 has a first inclined surface 136. The first inclined surface 136 is inclined to the setting direction D1 and the length direction D2 of the abutment arm 131. The mutually approaching end faces of the pushing parts 134 of the two abutment arms 131 are both the first inclined surface 136. Along the length direction D2 of the abutment arm 131, the end of the first inclined surface 136 away from the bottom arm 132 is closer to the other first inclined surface 136 than the end closer to the bottom arm 132. Thus, the projection structure of the pushing part 134 on the first projection plane is a first gradient structure. As a result, the structure of the abutment arm 131 is simple.

[0067] Furthermore, the projection configuration of the pushing part 134 on the second projection plane is a second gradient structure. The second projection plane is perpendicular to the setting direction D1. The second gradient structure has a second gradient small end and a second gradient large end. Along the length direction D2 of the abutment arm 131, the second gradient small end and the second gradient large end are arranged sequentially. The dimension of the second gradient structure along the thickness direction D3 of the abutment arm 131 gradually increases from the second gradient small end toward the second gradient large end. Along the length direction D2 of the abutment arm 131, the portion of the pushing part 134 corresponding to the second gradient small end is further away from the bottom arm 132 than the portion of the pushing part 134 corresponding to the second gradient large end. As a result, the first gradient structure contacts the actuating part 104 at the second gradient small end of the second gradient structure, which can reduce the contact area between the actuating part 104 and the abutment arm 131 and reduce the wear of the actuating part 104.

[0068] Furthermore, such as Figure 3 and Figure 4 As shown, the pushing part 134 is provided with a second inclined surface 135. The second inclined surface 135 is inclined to the thickness direction D3 and the length direction D2 of the abutment arm 131. In this way, the projection structure of the pushing part 134 on the second projection plane is a second gradient structure. As a result, the structure of the pushing part 134 is simple.

[0069] Alternatively, please refer to Figures 1 to 4 The unlocking device also includes a connector 140. A base arm 132 is detachably connected to the connector 140. The connector 140 is detachably connected to the slider 121. A telescopic rod 112 is connected to the connector 140 to connect to the slider 121 via the connector 140. Thus, the structure of the connector 140 and the lever 130 is simple.

[0070] It is understood that, in embodiments not shown, the telescopic rod may also be directly connected to the slider.

[0071] Furthermore, the bottom arm 132 has a mounting groove 133 recessed along the length direction D2 of the abutment arm 131, and a mounting hole disposed on the bottom surface of the mounting groove 133. Along the setting direction D1, the mounting groove 133 is located between the two abutment arms 131. The mounting hole is a through hole. Along the thickness direction D3 of the abutment arm 131, the mounting groove 133 penetrates through the bottom arm 132.

[0072] The locking / unlocking device also includes a fastener 150 (e.g., a bolt). The fastener 150 has a head and a shank. The shank of the fastener 150 passes through a mounting hole and is threaded to the connector 140. The head of the fastener 150 is located within a mounting groove 133 and does not protrude from it. Thus, the connector 140 is detachably connected to the base arm 132. The mounting groove 133 eliminates the need for space between the base arm 132 and the actuating portion 104 for the head of the fastener 150, shortening the length dimension of the abutment arm 131 along its length direction D2.

[0073] like Figure 3 As shown, the connector 140 includes a first wall 141 and a second wall 142. The plane containing the first wall 141 intersects (e.g., is perpendicular to) the plane containing the second wall 142. The first wall 141 is attached to and detachably connected to the base arm 132 via a fastener 150. The base arm 132 is away from the second wall 142. The second wall 142 is attached to and detachably connected to the slider 121 via a fastener 150. The guide rail 120 and the second wall 142 are respectively connected to the opposite ends of the slider 121. Thus, the connector 140 has a simple structure.

[0074] Furthermore, one end of the first wall 141 is connected to one end of the second wall 142. Along the thickness direction D3 of the abutment arm 131, there is a gap between the other end of the first wall 141 and the second wall 142. A portion of the slider 121 is disposed within this gap. This reduces the size of the unlocking / unlocking device along the thickness direction D3 of the abutment arm 131.

[0075] Optionally, the telescopic drive assembly 110 includes an electric actuator. This facilitates the selection of the telescopic drive assembly 110.

[0076] Optionally, such as Figure 3 and Figure 4 As shown, the telescopic rod 112 has a rod body 113 and a connecting flange 114 located at the free end of the rod body 113. The connecting flange 114 extends radially outward to the outer side of the outer peripheral surface of the rod body 113. Along the thickness direction D3 of the abutment arm 131, the outer surface of the second wall 142 away from the first wall 141 is recessed towards the first wall 141 to form a connecting groove 143. The connecting groove 143 includes a first groove segment 144 and a second groove segment 145. Along the radial direction of the telescopic rod 112, the dimensions of the first groove segment 144 and the second groove segment 145 increase sequentially. The first groove segment 144 and the second groove segment 145 are sequentially arranged and connected along the setting direction D1.

[0077] The rod 113 is disposed within the first groove 144. The connecting flange 114 is disposed within the second groove 145. Along the setting direction D1, the size of the second groove 145 is larger than the size of the connecting flange 114. The width dimension of the first groove 144 along the length direction D2 of the abutment arm 131 is larger than the diameter of the rod 113. The width dimension of the second groove 145 along the length direction D2 of the abutment arm 131 is larger than the maximum dimension of the connecting flange 114 along the radial direction of the rod 113. The rod 113 does not protrude beyond the outer side of the second wall 142 away from the first wall 141. The connecting flange 114 does not protrude beyond the outer side of the second wall 142 away from the first wall 141. In this way, the telescopic rod 112 is floatingly connected to the connector 140. Thus, the floating connection can compensate for installation errors between the telescopic rod 112 and the connector 140. Furthermore, the provision of the connecting groove 143 facilitates the installation of the telescopic rod 112 connected to the connector 140.

[0078] This utility model has been described through the above embodiments. However, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit the utility model to the described embodiments. Furthermore, those skilled in the art will understand that this utility model is not limited to the above embodiments, and many more variations and modifications can be made based on the teachings of this utility model, all of which fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

[0079] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for descriptive purposes only and is not intended to limit the scope of the invention. Terms such as “component” as used herein can refer to a single part or a combination of multiple parts. Terms such as “installation” or “installation” as used herein can indicate that one component is directly attached to another component or that one component is attached to another component via an intermediate component. A feature described in one embodiment herein may be applied, alone or in combination with other features, to another embodiment, unless that feature is not applicable in that other embodiment or is otherwise stated. Descriptions of one component connecting to another component herein can indicate that one component is directly connected to another component or that one component is indirectly connected to another component via an intermediate component.

Claims

1. An encryption / unlocking device, characterized in that, The locking / unlocking device is used to move the battery locking mechanism installed in the vehicle to lock and unlock the battery pack installed in the vehicle. The locking / unlocking device includes: A telescopic drive assembly, comprising a body and a telescopic rod, wherein the telescopic rod is movably connected to the body relative to the body along a direction parallel to the length direction of the telescopic rod; A guide rail is fixedly disposed relative to the body, and the length direction of the guide rail extends along the disposed direction; A slider, which is connected to the telescopic rod, and the slider is slidably connected to the guide rail along the set direction; A lever is connected to the slider. The lever has two abutting arms spaced apart along the set direction. The two abutting arms are respectively disposed on both sides of the actuating part of the battery locking mechanism so that the lever can push the battery locking mechanism to move along the set direction through the actuating part.

2. The unlocking / unlocking device according to claim 1, characterized in that, The lever also includes a bottom arm, and both of the abutment arms are connected to the bottom arm.

3. The unlocking / unlocking device according to claim 2, characterized in that, Along the setting direction, the minimum distance between the two abutting arms is 1.5 to 2.5 times the maximum size of the actuating part.

4. The unlocking / unlocking device according to claim 2, characterized in that, A pushing part is provided at the free end of the abutment arm away from the bottom arm. The projection of the pushing part on a first projection plane perpendicular to the thickness direction of the abutment arm is a first gradient structure. The first gradient structure has a first gradient small end and a first gradient large end arranged sequentially along the length direction of the abutment arm. The size of the first gradient structure along the setting direction gradually increases from the first gradient small end toward the first gradient large end. Along the length direction of the abutment arm, the portion of the pushing part corresponding to the first gradient small end is closer to the bottom arm than the portion of the pushing part corresponding to the first gradient large end. Along the setting direction, the portion of the first gradient large end that is closer to another abutment arm is closer to another abutment arm than the portion of the first gradient small end that is connected to it that is closer to another abutment arm.

5. The unlocking / unlocking device according to claim 4, characterized in that, The projection of the pushing part onto the second projection plane perpendicular to the setting direction is a second gradient structure. The second gradient structure has a second gradient small end and a second gradient large end arranged sequentially along the length direction of the abutment arm. The dimension of the second gradient structure along the thickness direction of the abutment arm gradually increases from the second gradient small end toward the second gradient large end. Along the length direction of the abutment arm, the portion of the pushing part corresponding to the second gradient small end is further away from the bottom arm than the portion of the pushing part corresponding to the second gradient large end.

6. The unlocking / unlocking device according to claim 2, characterized in that, The unlocking / unlocking device also includes a connector, the bottom arm is detachably connected to the connector, and the connector is detachably connected to the slider.

7. The unlocking / unlocking device according to claim 6, characterized in that, The base arm has a mounting groove and a mounting hole on the bottom surface of the mounting groove. The unlocking device also includes a fastener, the rod of which passes through the mounting hole and is threaded to the connector. The head of the fastener is located in the mounting groove and does not protrude from the mounting groove.

8. The unlocking / unlocking device according to claim 6, characterized in that, The connector includes a first wall and a second wall, the plane containing the first wall and the plane containing the second wall intersect. The first wall sticker is connected to the bottom arm, and the second wall sticker is connected to the slider.

9. The unlocking / unlocking device according to claim 8, characterized in that, One end of the first wall is connected to one end of the second wall, and there is a gap between the other end of the first wall and the second wall, with the slider disposed at the gap.

10. The unlocking / unlocking device according to claim 6, characterized in that, The telescopic drive assembly includes an electric actuator; and / or The telescopic rod has a rod body and a connecting flange located at the free end of the rod body. The connecting flange extends radially outward from the outer side of the outer circumferential surface of the rod body. The connector has a first groove segment and a second groove segment whose dimensions increase sequentially along the radial direction of the telescopic rod. The first groove segment and the second groove segment are sequentially arranged and connected along the setting direction. The rod body is disposed in the first groove segment, and the connecting flange is disposed in the second groove segment. Along the setting direction, the dimension of the second groove segment is larger than the dimension of the connecting flange.

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