Anti-impact locking assembly of battery swap battery box

Abstract

This invention discloses an impact-resistant locking assembly for a battery swapping box, within the field of battery box locking technology. The assembly includes a battery box docking seat and a base. The bottom of the battery box docking seat has multiple sets of pin holes. It also includes multiple sets of pin locking mechanisms. The battery box docking seat and the base are detachably connected via the pin locking mechanisms. Each pin locking mechanism consists of a pin post, multiple sets of expansion components, and multiple sets of tightening components. The expansion components are movably disposed on the upper end of the pin post, and the tightening components are movably disposed on the outside of the pin post. Multiple expansion drive mechanisms are also included, with the expansion components positioned close to or far apart from each other. This invention utilizes expansion to ensure a tighter fit and fixation of the pin post within the pin holes, thereby increasing the strength of the pin post during installation and reducing impact stress, effectively improving the impact resistance of the locking assembly.

Description

Technical Field

[0001] This invention relates to the field of battery box locking technology, and in particular to an impact-resistant locking component for a battery swapping box. Background Technology

[0002] With the increasing popularity of electric vehicles, battery swapping stations play an indispensable role as a key facility ensuring their range. Battery swapping stations can directly replace a car's battery pack to quickly replenish its energy. The battery pack and the battery holder on the car are locked and unlocked through multiple locking mechanisms. Common locking structures include cylinder locking, electric locking, rotary locking, and pin-type locking. Among these, the pin-type locking mechanism has advantages such as simple structure, high reliability, and convenient operation, and is widely used in small electric vehicles. The locking mechanism also provides impact protection for the battery pack, meaning it locks before impact to prevent it from loosening and falling off, thus avoiding potential hazards. Existing technologies still have the following problems: Although the pin-type locking mechanism has the advantages of simple structure, high reliability and convenient operation, when the pin is inserted into the pin hole, the pin and the inner wall of the pin hole still have a certain sliding property. When the pin slides in the hole, the impact force is transmitted through local contact points, which easily causes stress concentration and poor impact resistance, thus having certain limitations. Secondly, although the assembly of the pin-type locking structure is more convenient and simpler than that of locking structures such as cylinder locking mechanisms and electric locking structures, the impact resistance is poor and the locking force cannot be met, making it unsuitable for vehicles with high impact resistance. Therefore, we propose an impact-resistant locking component for battery swapping boxes. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a new technology solution for an impact-resistant locking component for a battery swapping box.

[0004] The objective of this invention is achieved as follows: a shock-resistant locking assembly for a battery swapping box, comprising a battery box docking seat and a base, wherein the bottom of the battery box docking seat has multiple sets of pin holes, and further comprising: Multiple sets of pin locking mechanisms are provided. The battery box docking seat and the bottom support are detachably connected by the pin locking mechanism. The pin locking mechanism consists of a pin post, multiple sets of expansion components and multiple sets of tightening components. The expansion components are movably disposed on the upper end of the pin post, and the tightening components are movably disposed on the outside of the pin post. Multiple sets of expansion drive mechanisms are provided, and the multiple sets of expansion components are arranged close to or far apart from each other through the expansion drive mechanisms, and the tightly packed components are arranged close to or far apart from each other through the expansion drive mechanisms.

[0005] Optionally, the pin is provided corresponding to the pin hole, and the pin is hollow. Multiple sets of inclined grooves are formed around the upper surface of the pin, and the expansion member is slidably arranged along the direction of the inclined grooves.

[0006] Optionally, the expansion component includes an expansion plate, which is slidably installed in an inclined groove, and the bottom of the expansion plate is inclined to correspond to the inclined groove. A pressure plate is fixedly installed on one side of the expansion plate, and the pressure plate is movably connected to the inside of the pin post.

[0007] Optionally, one end of the pressure plate is inclined, and a connecting rod is rotatably connected to the bottom of the pressure plate. One end of the connecting rod is rotatably connected to a lifting seat. Multiple lifting slots are formed around the inside of the pin column, and a return spring is fixedly installed at the lower end of the lifting slot. The upper end of the return spring is fixedly connected to the lifting seat, and the lifting seat is slidably installed inside the lifting slot.

[0008] Optionally, a telescopic rod is provided at one end inside the inclined groove, and one end of the movable part of the telescopic rod is fixedly connected to the bottom of the pressure plate.

[0009] Optionally, the pin locking mechanism further includes two sets of pressing columns, both of which are tapered and fixedly arranged. The pressure plate is located between the outer sides of the two sets of pressing columns, and one set of pressing columns is connected to the expansion drive mechanism, so that the pressing column slides up and down inside the pin column through the expansion drive mechanism.

[0010] Optionally, the tight component includes a bonding plate and a transmission component, the transmission component being disposed between the bonding plate and one of the sets of extrusion pins, and multiple sets of hidden grooves being formed around the outer side of the pins, and the bonding plate being slidably installed inside the hidden grooves via the transmission component.

[0011] Optionally, the transmission component further includes a push rod and a guide rod, the push rod and the guide rod being rotatably connected by a connecting seat, the upper end of the push rod being rotatably connected to one of the extrusion columns, a guide groove communicating with the inside of the pin column being opened on one side of the hidden groove, and the guide rod slidingly passing through the inside of the guide groove and being fixedly connected to the bonding plate.

[0012] Optionally, the expansion drive mechanism includes two sets of worm gears, both sets of worm gears are rotatably connected to the base, and a worm is meshed with one side of the worm gear. A lifting screw is fixedly installed on the upper surface of the worm gear, and a lifting sleeve is threaded on the outer side of the lifting screw. The lifting sleeve is fixedly connected to the bottom of one of the extrusion columns.

[0013] Optionally, the expansion drive mechanism further includes a mounting base, the upper end of which is provided with a bidirectional motor, and the output shafts at both ends of the bidirectional motor are keyed to drive rods, which are fixedly connected to a worm gear.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: Through the design of the pin locking mechanism, when the pin is inserted into the pin hole, multiple sets of expansion plates can move away from each other to achieve expansion action and limit and lock the end of the pin hole. Therefore, the method of limiting and locking by expansion is more stable than the traditional method of limiting and locking by torsion spring. At the same time, the expansion locking method can better resist impact force, making the pin locking structure have a stronger impact resistance effect. Secondly, through the design of multiple sets of tightly fitted components, when multiple sets of expansion plates move away from each other to achieve expansion locking action, multiple sets of bonding plates will also move away from each other and stick tightly to the inner wall of the pin hole, making the pin more tightly fitted inside the pin hole to prevent slippage. The tight fitting method allows it to remain fixed after impact, further improving the impact resistance of the pin. By employing a self-locking design for the worm gear and worm shaft, the automatic retraction of multiple expansion plates due to pressure can be prevented when the dual-shaft motor experiences a power outage. Therefore, the cooperation between the worm gear and worm shaft greatly improves safety.

[0015] Other features and advantages of the invention will become clear from the following detailed description of exemplary embodiments of the invention with reference to the accompanying drawings. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 This is a schematic diagram of the base structure of the present invention.

[0019] Figure 3 For the present invention Figure 2 A magnified structural diagram at point A.

[0020] Figure 4 For the present invention Figure 2 A magnified structural diagram at point B.

[0021] Figure 5 This is a schematic diagram of the lifting screw structure of the present invention.

[0022] Figure 6 This is a schematic diagram of the expansion plate structure of the present invention.

[0023] Figure 7 This is a schematic diagram of the pin structure of the present invention.

[0024] Figure 8 This is a schematic diagram of the extrusion column structure of the present invention.

[0025] Figure 9 This is a schematic diagram of the compact component structure of the present invention.

[0026] Figure 10 This is a schematic diagram of the pressure plate structure of the present invention.

[0027] The diagram shows the following components: 1. Pin locking mechanism; 2. Expansion drive mechanism; 3. Battery box docking seat; 4. Base support; 5. Pin hole; 6. Hidden groove; 7. Gear plate; 8. Protective shell; 9. Inclined groove; 10. Guide groove; 101. Pin post; 102. Expansion component; 1021. Expansion plate; 1022. Gear set; 1023. Auxiliary fixing plate; 1024. Telescopic rod; 1025. Connecting rod; 1026. Return spring; 1027. Lifting seat; 1028. Pressure plate; 103. Tightening component; 1031. Adhesive plate; 1032. Guide rod; 1033. Connecting seat; 1034. Push rod; 104. Lifting sleeve; 105. Extrusion column; 201. Mounting seat; 202. Bidirectional motor; 203. Drive rod; 204. Worm gear; 205. Worm wheel; 206. Lifting screw. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] like Figures 1 to 10 As shown, an impact-resistant locking assembly for a battery swapping box includes a battery box docking seat 3 and a base 4. The bottom of the battery box docking seat 3 has multiple sets of pin holes 5, and also includes: Multiple sets of pin locking mechanisms 1, battery box docking seat 3 and base 4 are detachably connected through the pin locking mechanism 1. The pin locking mechanism 1 consists of a pin post 101, multiple sets of expansion components 102 and multiple sets of tightening components 103. The expansion components 102 are movably disposed on the upper end of the pin post 101, and the tightening components 103 are movably disposed on the outside of the pin post 101. Multiple sets of expansion drive mechanisms 2 and multiple sets of expansion components 102 are arranged close to or far from each other through the expansion drive mechanisms 2, and the compact components 103 are arranged close to or far from each other through the expansion drive mechanisms 2.

[0030] like Figures 1 to 10 As shown, by means of a design in which multiple sets of expansion components 102 are arranged close to or far from each other through an expansion drive mechanism 2, when the pin 101 is inserted into the pin hole 5, and multiple sets of expansion components 102 are located at one end of the pin hole 5, the multiple sets of expansion components 102 are far from each other, and expand and squeeze the pin hole 5, thereby achieving expansion limit locking. Compared with the traditional limit locking using torsion spring force or bolt limit locking, it is more stable and convenient to use. Therefore, the expansion locking method can effectively improve the impact resistance of the locking mechanism. Furthermore, the pin post 101 is correspondingly provided with the pin hole 5, and the pin post 101 is hollow. Multiple sets of inclined grooves 9 are formed around the upper surface of the pin post 101, and the expansion member 102 is slidably provided along the direction of the inclined grooves 9. like Figures 1 to 10 As shown, by sliding the expansion member 102 along the inclined groove 9, the expansion member 102 can slide downwards and stably fit against the battery box docking seat 3. Furthermore, multiple sets of expansion members 102 are arranged in a ring at equal intervals, which makes the force more uniform, further improves the impact resistance, and can improve the stability of the battery box when it is hit by a collision or bump. Furthermore, the expansion component 102 includes an expansion plate 1021, which is slidably installed in the inclined groove 9, and the bottom of the expansion plate 1021 is inclined in a manner corresponding to the inclined groove 9. A pressure plate 1028 is fixedly installed on one side of the expansion plate 1021, and the pressure plate 1028 is movably connected to the inside of the pin post 101. like Figures 1 to 10 As shown, by means of the bottom of the expansion plate 1021 being inclined in a manner corresponding to the inclined groove 9, the expansion plate 1021 can slide more stably along the direction of the inclined groove 9, so that the expansion plate 1021 can fit more stably onto the battery box docking seat 3. Furthermore, one end of the pressure plate 1028 is inclined, and a connecting rod 1025 is rotatably connected to the bottom of the pressure plate 1028. One end of the connecting rod 1025 is rotatably connected to a lifting seat 1027. Multiple lifting slots are opened around the inside of the pin column 101, and a return spring 1026 is fixedly installed at the lower end of the lifting slot. The upper end of the return spring 1026 is fixedly connected to the lifting seat 1027, and the lifting seat 1027 is slidably installed inside the lifting slot. like Figures 1 to 10 As shown, through the design of the return spring 1026, multiple sets of expansion plates 1021 can automatically reset under the elastic action of the return spring 1026. Furthermore, the expansion plates 1021 can slide more stably under the guidance of the connecting rod 1025, the lifting seat 1027, and the lifting groove, thereby improving their own strength and further enhancing their impact resistance. Furthermore, a telescopic rod 1024 is provided at one end inside the inclined groove 9, and one end of the movable rod of the telescopic rod 1024 is fixedly connected to the bottom of the pressure plate 1028; For example, the telescopic rod 1024 described above uses a large cylinder inside a small cylinder to achieve extension and sliding. The use of a large cylinder inside a small cylinder to achieve extension and sliding is a mature existing technology. Those skilled in the art should know how to install and use the telescopic rod 1024 so that the pressure plate 1028 can drive the expansion plate 1021 to slide more stably on the inclined groove 9. Therefore, the present invention will not elaborate on this.

[0031] Furthermore, the pin locking mechanism 1 also includes two sets of pressing columns 105, and both sets of pressing columns 105 are tapered. The two sets of pressing columns 105 are fixedly arranged with each other. The pressure plate 1028 is located between the outer sides of the two sets of pressing columns 105. One set of pressing columns 105 is connected to the expansion drive mechanism 2, so that the pressing column 105 slides up and down inside the pin column 101 through the expansion drive mechanism 2. like Figures 1 to 10 As shown, by using the conical design of the extrusion column 105, when the extrusion column 105 moves downward, the upper extrusion column 105, relying on its inclined characteristic, extrudes the pressure plate 1028, causing the pressure plate 1028 to drive the expansion plate 1021 to slide along the inclined groove 9. Meanwhile, the lower extrusion column 105 can move downward simultaneously to make room. When the extrusion column 105 slides upward, the lower extrusion column 105 can extrude the pressure plate 1028, allowing multiple sets of expansion plates 1021 to reset more stably and synchronously. This enables the auxiliary reset spring 1026 to reset the expansion plates 1021. Furthermore, under the extrusion of the lower extrusion column 105, the reset positions of the multiple sets of reset expansion plates 1021 are more stable, preventing the reset spring 1026 from losing its elasticity after prolonged and repeated use, thus preventing the expansion plates 1021 from failing to reset easily. Specifically, such as Figures 1 to 10 As shown, multiple sets of toothed plates 7 are fixedly installed around the upper surface of the pin post 101, and the direction of the teeth on the upper surface of the toothed plate 7 is consistent with the inclination angle of the inclined groove. A protective shell 8 is provided on one side of the expansion plate 1021, and a gear set 1022 is provided inside the protective shell 8. An auxiliary fixing plate 1023 is rotatably connected to the upper surface of the expansion plate 1021 through the gear set 1022, and the gear set 1022 is meshed with the toothed plate 7.

[0032] Through the design of the auxiliary fixing plate 1023 and the gear set 1022, when the expansion plate 1021 slides down along the inclined groove 9, the gear set 1022 meshes with the toothed plate 7, causing the auxiliary fixing plate 1023 to rotate. One end of the auxiliary fixing plate 1023 rotates and fits tightly against the battery box docking seat 3, thereby cooperating with multiple sets of expansion plates 1021 to further lock the pin 101. Therefore, the pin 101 is more stable in the pin hole, preventing the pin 101 from being accidentally unlocked when the battery box is hit, thereby improving the impact resistance of the locking mechanism.

[0033] like Figures 1 to 10 As shown, the auxiliary fixing plate 1023 is set at a right angle, so that when the auxiliary fixing plate 1023 rotates through the gear set 1022, it can take advantage of the right-angle turning characteristic to tightly fit the auxiliary fixing plate 1023 onto the battery box docking seat 3.

[0034] For example, the gear set 1022 described above consists of three sets of meshing gears. The method of using three sets of gears to achieve transmission is a mature existing technology. Those skilled in the art should know how to install and use the gear set 1022 so that when the expansion plate 1021 slides obliquely downward along the inclined groove 9, the three sets of gears mesh with each other to control the rotation of the auxiliary fixing plate 1023, and make one end of the auxiliary fixing plate 1023 rotate and fit tightly against the battery box docking seat 3. Therefore, the present invention will not be described in detail here.

[0035] Furthermore, the tight component 103 includes a bonding plate 1031 and a transmission component. The transmission component is disposed between the bonding plate 1031 and one of the sets of extrusion posts 105. Multiple sets of hidden grooves 6 are formed around the outer side of the pin post 101, and the bonding plate 1031 is slidably installed inside the hidden grooves 6 through the transmission component. like Figures 1 to 10 As shown, the design of the bonding plate 1031 slidingly installed inside the hidden groove 6 through the transmission component allows the bonding plate 1031 to be hidden inside the hidden groove 6 when the pin 101 is slidably inserted into the pin hole 5. When the pin 101 is fully inserted into the pin hole 5, multiple sets of bonding plates 1031 slide out of the hidden groove 6 and press against the inner wall of the pin hole 5, thereby achieving stable fixing of the pin 101 inside the pin hole 5. This avoids stress concentration when the battery box is impacted, which could easily lead to damage to the pin 101. Therefore, by using the bonding plate 1031 to tightly fit the pin 101 inside the pin hole 5, excessive stress concentration can be avoided, thereby further improving the impact resistance of the pin 101. Furthermore, the transmission components also include a push rod 1034 and a guide rod 1032. The push rod 1034 and the guide rod 1032 are rotatably connected to a connecting seat 1033. The upper end of the push rod 1034 is rotatably connected to one of the extrusion columns 105. A guide groove 10 communicating with the inside of the pin column 101 is opened on one side of the hidden groove 6. The guide rod 1032 slides through the inside of the guide groove 10 and is fixedly connected to the bonding plate 1031. like Figures 1 to 10 As shown, through the design of the push rod 1034, guide rod 1032 and connecting seat 1033, when the extrusion column 105 descends and moves multiple sets of expansion plates 1021 away from each other, the lower extrusion column 105 can also simultaneously control multiple sets of bonding plates 1031 to move away from each other and tightly adhere to the inside of the pin hole 5 through the push rod 1034, guide rod 1032 and connecting seat 1033, thereby achieving synchronous improvement of the stability of the pin column 101 in the pin hole 5 in both areas. Therefore, it can effectively improve the tightness of the connection between the locking structure and the battery box docking seat 3, and further improve the impact resistance. Furthermore, the expansion drive mechanism 2 includes two sets of worm gears 205, both sets of worm gears 205 are rotatably connected to the base 4, and a worm 204 is meshed with one side of the worm gear 205. A lifting screw 206 is fixedly installed on the upper surface of the worm gear 205, and a lifting sleeve 104 is threaded on the outer side of the lifting screw 206. The lifting sleeve 104 is fixedly connected to the bottom of one of the extrusion columns 105. The expansion drive mechanism 2 also includes a mounting base 201. A bidirectional motor 202 is provided at the upper end of the mounting base 201. The output shafts at both ends of the bidirectional motor 202 are keyed to drive rods 203, and the drive rods 203 are fixedly connected to the worm 204. like Figures 1 to 10 As shown, through the design of the worm gear 205 and worm 204, the worm gear 205 and worm 204 have self-locking capabilities. Therefore, the lifting screw 206 can be prevented from rotating automatically, thereby ensuring the positional stability of the multiple sets of expansion plates 1021, multiple sets of auxiliary fixing plates 1023 and multiple sets of bonding plates 1031, which greatly improves the safety of the locking mechanism during use.

[0036] The aforementioned shock-resistant locking assembly for a battery swapping box, through the cooperation of a pin locking mechanism and an expansion drive mechanism, achieves expansion so that the pin 101 fits more tightly and is fixed in the pin hole 5, thereby improving the strength of the pin 101 when installed in the pin hole 5 and reducing the generation of impact stress, thus effectively improving the shock resistance of the locking assembly.

[0037] The above description of the embodiments is only for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make several improvements and modifications to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. An anti-impact locking assembly of a battery swap battery box, comprising a battery box docking seat (3) and a bottom support (4), a plurality of pin holes (5) are formed in the bottom of the battery box docking seat (3), characterized in that: Also includes: Multiple sets of pin locking mechanisms (1) are provided. The battery box docking seat (3) and the base (4) are detachably connected by the pin locking mechanism (1). The pin locking mechanism (1) consists of a pin post (101), multiple sets of expansion components (102) and multiple sets of tightening components (103). The expansion component (102) is movably disposed on the upper end of the pin post (101), and the tightening component (103) is movably disposed on the outside of the pin post (101). Multiple sets of inclined grooves (9) are opened around the upper surface of the pin post (101), and the expansion component (102) is slidably disposed along the direction of the inclined groove (9). Multiple sets of expansion drive mechanisms (2), the multiple sets of expansion components (102) are all arranged close to or far from each other through the expansion drive mechanisms (2), and the compact components (103) are arranged close to or far from each other through the expansion drive mechanisms (2); The expansion component (102) includes an expansion plate (1021), which is slidably installed in the inclined groove (9), and the bottom of the expansion plate (1021) is inclined in a manner corresponding to the inclined groove (9). A pressure plate (1028) is fixedly installed on one side of the expansion plate (1021), and the pressure plate (1028) is movably connected to the inside of the pin post (101). The pin locking mechanism (1) further includes two sets of extrusion columns (105), and both sets of extrusion columns (105) are tapered. The two sets of extrusion columns (105) are fixedly arranged with each other. The pressure plate (1028) is located between the outer sides of the two sets of extrusion columns (105). One set of extrusion columns (105) is connected to the expansion drive mechanism (2) for transmission, so that the extrusion column (105) slides up and down inside the pin column (101) through the expansion drive mechanism (2). Multiple sets of toothed plates (7) are fixedly installed around the upper surface of the pin post (101), and the direction of the teeth on the upper surface of the toothed plate (7) is consistent with the inclination angle of the inclined groove. A protective shell (8) is provided on one side of the expansion plate (1021), and a gear set (1022) is provided inside the protective shell (8). An auxiliary fixing plate (1023) is rotatably connected to the upper surface of the expansion plate (1021) through the gear set (1022), and the gear set (1022) meshes with the toothed plate (7).

2. The anti-impact locking assembly of the battery swapping battery box according to claim 1, characterized in that: The pin (101) is provided corresponding to the pin hole (5), and the pin (101) is hollow. 3.The anti-impact locking assembly of the battery swap battery box according to claim 2, characterized in that: One end of the pressure plate (1028) is inclined, and a connecting rod (1025) is rotatably connected to the bottom of the pressure plate (1028). One end of the connecting rod (1025) is rotatably connected to a lifting seat (1027). Multiple lifting slots are opened around the inside of the pin (101), and a return spring (1026) is fixedly installed at the lower end of the lifting slot. The upper end of the return spring (1026) is fixedly connected to the lifting seat (1027), and the lifting seat (1027) is slidably installed inside the lifting slot.

4. The shock-resistant locking assembly for a battery swapping box according to claim 3, characterized in that: A telescopic rod (1024) is provided at one end inside the inclined groove (9), and one end of the movable rod of the telescopic rod (1024) is fixedly connected to the bottom of the pressure plate (1028).

5. The shock-resistant locking assembly for a battery swapping box according to claim 4, characterized in that: The tight component (103) includes a bonding plate (1031) and a transmission component. The transmission component is disposed between the bonding plate (1031) and one of the sets of extrusion pins (105). Multiple sets of hidden grooves (6) are opened around the outer side of the pin (101), and the bonding plate (1031) is slidably installed in the hidden grooves (6) through the transmission component.

6. The shock-resistant locking assembly for a battery swapping box according to claim 5, characterized in that: The transmission component also includes a push rod (1034) and a guide rod (1032). The push rod (1034) and the guide rod (1032) are rotatably connected to a connecting seat (1033). The upper end of the push rod (1034) is rotatably connected to one of the extrusion columns (105). A guide groove (10) communicating with the inside of the pin column (101) is provided on one side of the hidden groove (6). The guide rod (1032) slides through the inside of the guide groove (10) and is fixedly connected to the bonding plate (1031).

7. The anti-impact locking assembly of the battery swapping battery box according to claim 6, characterized in that: The expansion drive mechanism (2) includes two sets of worm gears (205). Both sets of worm gears (205) are rotatably connected to the base (4). A worm (204) is meshed with one side of the worm gear (205). A lifting screw (206) is fixedly installed on the upper surface of the worm gear (205). A lifting sleeve (104) is threaded on the outside of the lifting screw (206). The lifting sleeve (104) is fixedly connected to the bottom of one of the extrusion columns (105). 8.The anti-impact locking assembly of the battery swap battery box according to claim 7, characterized in that: The expansion drive mechanism (2) also includes a mounting base (201), and a bidirectional motor (202) is provided at the upper end of the mounting base (201). The output shafts at both ends of the bidirectional motor (202) are keyed to drive rods (203), and the drive rods (203) are fixedly connected to the worm gear (204).

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