Quick locking device for storage battery trolley

Abstract

The invention provides a quick locking device for a storage battery trolley. The storage battery box comprises a battery box body and a battery body, and the battery box body can slide in and out of the box body along a sliding structure between the battery box body and the battery body. The connecting plate is fixed on the battery body; the supporting piece is fixed on the battery box; the hinging piece is rotationally connected with the supporting piece and can rotate relative to the supporting piece; the locking rod penetrates out through the hinging piece; the locking pin mounting plate is fixed on the hinging piece; the locking pin is inserted into the locking pin mounting plate; in the locking state, the hinge piece rotates around the supporting piece to be close to one side of the connecting plate, the locking rod can abut against the supporting piece through the penetrating-out end of the hinge piece, and the locking pin is connected with the locking rod and fixes the position of the locking rod. In the unlocking state, the locking pin is separated from the locking rod, and the hinge piece rotates around the supporting piece till the locking rod is separated from the supporting piece. The quick locking device for the storage battery trolley is convenient to operate and high in interchangeability.

Description

Technical Field

[0001] The invention relates to the technical field of charging equipment, and in particular to a quick-locking device for a battery trolley. Background Art

[0002] When the battery is in use, install the battery body in the battery box. After the battery body is installed in the battery box, lock the battery body through the locking structure. The locking structure fixes the battery body in the battery box to prevent the battery body from shifting or being damaged due to bumps or impacts.

[0003] The common locking mechanism used in large railway battery boxes in the rail transit industry is a latch-type locking structure similar to a door lock latch. This structure is easy to operate, but has the disadvantages of safety and reliability risks and poor interchangeability during use.

[0004] 1. Reliability risk

[0005] Taking welding tolerance and assembly convenience into consideration, the pin and the pin seat are generally fitted with a clearance fit. This means that there may be a small gap between the pin and the pin seat after installation, which may cause loosening due to vibration and impact during train operation. Therefore, the position of the pin seat and the pin in this structure is generally matched before welding to solve the problem of large gap.

[0006] 2. Poor interchangeability

[0007] Because the pins of each battery body and the pin holder on the battery box are welded together, each battery body corresponds to a box. When the battery body is overhauled, its interchangeability cannot be guaranteed when it is reassembled, so there may be a gap between each pin and the pin holder, causing risks and posing a large workload for interchangeability rectification. Summary of the invention

[0008] The purpose of the present invention is to solve one of the above technical problems and improve the quick lock structure of the battery box.

[0009] To achieve the above object, the technical solution adopted by the present invention is:

[0010] A battery trolley quick lock device, the battery box comprising a battery box and a battery body, the battery box being able to slide in and out of the box body along a sliding structure between the battery box and the battery body, comprising:

[0011] Connecting plate: fixed on the battery body;

[0012] Supporting part: fixed on the battery box;

[0013] Hinge: rotatably connected to the support member and capable of rotating relative to the support member;

[0014] Locking rod: passing through the hinged part;

[0015] Locking pin mounting plate: fixed on the hinged member;

[0016] Locking pin: inserted into the locking pin mounting plate;

[0017] Among them, in the locked state, the hinge rotates around the support member to the side close to the connecting plate, the locking rod can be against the support member through the protruding end of the hinge, and the locking pin is connected to the locking rod and fixes the position of the locking rod; in the unlocked state, the locking pin is disconnected from the locking rod, and the hinge rotates around the support member until the locking rod is disconnected from the support member.

[0018] In the embodiment of the present application, a flexible locking structure is designed, which can be adapted to battery boxes and battery assembly structures of various sizes, and after replacing the battery body, the locking structure does not need to be replaced, and the locking effect can be ensured.

[0019] In some embodiments of the present invention, the locking pin mounting plate is provided with a through hole, the cross section of which is polygonal; a polygonal fixing piece is provided on the outer wall of the locking pin, the shape of the polygonal fixing piece is the same as the shape of the cross section of the through hole, and the fixing piece includes a first size segment matching the aperture of the through hole, and a second size segment larger than the aperture of the through hole; the locking pin passes through the through hole; the first size segment of the fixing piece can be inserted into the through hole;

[0020] During the unlocking process, the locking pin is pulled toward a side away from the locking rod to disconnect the locking pin from the locking rod.

[0021] In the embodiment of the present application, by designing a fixing piece on the outer wall of the locking pin and providing a through hole matching the fixing piece on the locking pin mounting plate, the normal pulling out of the locking pin and the locking effect after pulling out can be ensured.

[0022] In some embodiments of the present invention, a groove structure is provided on the rod body at the end of the locking rod passing through the hinge, and in a locked state, the matching ends of the locking pin and the locking rod are located in the groove structure.

[0023] In the embodiment of the present application, the problem of locking the locking pin in the moving state can be solved by the matching structure of the locking pin and the slot structure. In the locked state, the locking pin is placed in the slot structure, and in the unlocked state, the locking pin is removed from the slot structure, which is easy to operate.

[0024] In some embodiments of the present invention, the locking pin includes a main body and an end portion cooperating with the locking rod, the end portion has a larger radial dimension than the main body of the locking pin, and an elastic member is mounted on a section of the locking pin passing through the through hole.

[0025] In the embodiment of the present application, by designing an elastic member, on the one hand, the locking pin can automatically reset after being pulled out, and on the other hand, when the locking pin is inserted into the locking groove, pressure is applied to the head of the locking pin to ensure that the locking pin can be stably inserted into the groove structure.

[0026] In some embodiments of the present invention, the support member includes a first vertical plate, a second vertical plate, and a third vertical plate connected to the first vertical plate and the second vertical plate, and the hinge is rotatably installed in the gap between the first vertical plate and the second vertical plate via a pin shaft.

[0027] In the embodiment of the present application, the support member is designed as a structure of three vertical plates spliced ​​together. On the one hand, on the other hand, it enables the hinge to rotate along the side where the vertical plate is not set, thereby forming a relatively stable support member structure under the premise of ensuring that the part does not affect the rotation of the hinge.

[0028] In some embodiments of the present invention, the first vertical plate is equal to the second vertical plate in height, and the third vertical plate is less than the first vertical plate in height, so as to provide a rotation space for the hinge;

[0029] The locking device further comprises a fixing buckle, which is sleeved on the outside of the hinge;

[0030] A buckle fitting portion is formed at the top of the first vertical plate and the second vertical plate in the height direction, and a vertical plate fitting portion is provided on one side of the fixing buckle facing the first vertical plate and the second vertical plate;

[0031] In the locked state, the corresponding buckle ring mating portion overlaps with the vertical plate mating portion to limit the rotation of the hinge.

[0032] In the embodiment of the present application, the position of the hinge can be restricted by the design of the fixing buckle, thereby preventing the hinge from rotating in the locked state, thereby ensuring a stable locking structure.

[0033] In some embodiments of the present invention, the hinge comprises a nut column section having an internal thread; the locking rod has an external thread matching the internal thread of the nut column section; and the locking rod passes through the nut column section.

[0034] In the embodiment of the present application, the threaded mounting structure of the locking rod can conveniently adjust the extension length of the locking rod to adapt to a variety of battery bodies.

[0035] In some embodiments of the present invention, the hinge is tubular.

[0036] In the embodiment of the present application, the hinge is designed to be tubular, especially square tubular, so as to better cooperate with the structure formed by splicing the vertical plates, and limit and ensure the rotation direction of the hinge.

[0037] In some embodiments of the present invention, friction pads are provided at the mating ends of the locking rod and the connecting plate; in a locked state, the friction pads abut against the connecting block.

[0038] In the embodiment of the present application, a friction pad with a high friction coefficient is used, and the friction between the friction pad and the connecting block can play a role in locking the movement of the battery body.

[0039] In some embodiments of the present invention, the connecting plate includes three corner connecting plates which are perpendicular to each other in pairs, the battery body is a rectangular parallelepiped, and the connecting plate is installed at the top corners of the battery body.

[0040] In the embodiment of the present application, this structure of the connecting plate can be better adapted to be installed at the top corners of the rectangular battery body.

[0041] Compared with the prior art, the battery trolley quick lock device provided by the present invention has the following beneficial effects:

[0042] The quick lock device is easy to operate and can be adapted to battery bodies of various sizes by adjusting the position of the locking rod and the position of the locking pin. The quick lock device of the battery trolley has strong interchangeability and improves the reliability of battery body fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0044] Figure 1a It is a schematic diagram of the battery box structure in the prior art.

[0045] Figure 1b for Figure 1a A partial enlarged schematic diagram of the quick lock structure of the battery box at point D in the middle.

[0046] Figure 2a The figure is a schematic diagram of the battery box structure adopting the locking structure of the present invention.

[0047] Figure 2b for Figure 2a A partial enlarged schematic diagram of the quick lock structure of the battery box at point A in the middle.

[0048] Figure 3 This is a schematic diagram of the locking rod structure of the present invention.

[0049] Figure 4 It is a schematic diagram of the fixing buckle structure of the present invention.

[0050] Figure 5This is a schematic structural diagram of the locking structure unit of the present invention from the first viewing angle.

[0051] Figure 6 This is a schematic structural diagram of the locking structure unit of the present invention from a second viewing angle.

[0052] Figure 7 This is a schematic structural diagram of the locking structure unit of the present invention from the third viewing angle.

[0053] 1-battery body, 101-roller;

[0054] 2-battery box, 201-slide rail;

[0055] 301-socket, 302-pin;

[0056] 4- Connecting rod;

[0057] 5-Connection plate;

[0058] 6-supporting member, 601-first vertical plate, 602-second vertical plate, 603-third vertical plate, 604-buckle fitting portion;

[0059] 7- hinged part, 701- nut column section;

[0060] 8-locking rod, 801-friction pad, 802-slot structure;

[0061] 9-locking pin mounting plate;

[0062] 10-locking pin, 1001-polygonal fixing piece;

[0063] 11-fixed seat;

[0064] 12-fixing parts;

[0065] 13-Compression spring;

[0066] 14-pin shaft;

[0067] 15-fixing buckle, 1501-vertical plate matching part. DETAILED DESCRIPTION

[0068] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0069] In the description of the present application, it should be noted that the fixed connection described in the present application can be a detachable fixed connection or an integrated fixed connection; the indication of the orientation or positional relationship is based on the positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0070] In the embodiments of the present application, prefixes such as "first" and "second" are used only to distinguish different description objects, and have no limiting effect on the position, order, priority, quantity or content of the described objects. The use of prefixes such as ordinal numbers to distinguish description objects in the embodiments of the present application does not constitute a limitation on the described objects. For the statement of the described objects, please refer to the description in the context of the claims or embodiments, and no unnecessary limitation should be constituted due to the use of such prefixes. In addition, in the description of the present embodiment, unless otherwise specified, the meaning of "multiple" is two or more.

[0071] The present invention relates to a battery trolley product. The battery trolley product refers to a structure composed of a battery box 2 and a battery body 1. Since the battery body 1 can slide out from the battery box 2 to form a structure similar to a mobile trolley, the product is also called a battery trolley.

[0072] Figure 1a and Figure 1b The figure shows a latch-type quick lock structure between a battery body 1 and a battery box 2 in the known prior art.

[0073] The quick lock structure includes a socket 301 arranged on the battery box 2, and a latch 302 installed on the battery body 1. The battery body 1 and the battery box 2 are usually rectangular parallelepipeds, and the panel on one side of the battery box 2 is an openable structure. One or more slide rails 202 are arranged at the bottom of the battery box 2 along the direction in which the battery body 1 is pulled, and correspondingly, a slide rail 202 is also arranged on the panel on the openable side, and the slide rail 202 on the panel is aligned with the slide rail 202 at the bottom of the battery box 2. A roller 101 is installed at the bottom of the battery body 1, and the roller 101 is located inside the slide rail 202 to facilitate the push-pull movement of the battery body 1. A multi-section hinged connecting rod 4 structure is arranged between the battery body 1 and the battery box 2 to limit the movement and position of the two.

[0074] In the unlocked state, the latch 302 is not inserted into the socket 301, and the battery body 1 can be pulled out of the battery box 2 along the slide rail 202 at the bottom of the battery box 2. When the battery body 1 is pushed back into the battery box 2, the latch 302 is inserted into the socket 301 to lock the position of the battery body 1 and the battery box 2.

[0075] Although the above structure is simple, it has problems such as poor universal adaptability and poor precision. The locking mechanism of the bolt structure is welded according to the battery body 1 vehicle. After the battery body 1 vehicle is replaced, due to welding errors and poor consistency, there may be a problem of excessive gap between the bolt and the bolt seat, poor matching, and affecting safety and reliability.

[0076] In order to solve the above problems, the present invention improves and provides a novel battery quick lock device.

[0077] refer to Figure 2a and Figure 2b .

[0078] The connecting plate 5 is fixed on the battery body 1 .

[0079] In the known prior art, the battery body 1 and the battery box 2 are usually rectangular parallelepipeds. In order to facilitate the installation of the connecting plate 5, in some embodiments of the present invention, the connecting plate 5 includes three vertical corner plates in pairs. The battery body 1 is a rectangular parallelepiped, and the connecting plate 5 is installed at the top corner of the battery body 1. For the convenience of operation, the connecting plate 5 is installed at a top corner of the battery body 1 close to the side where it is pulled out, that is, close to the side of the box plate of the battery box 1 that can be opened and closed. In addition, for the convenience of operation, the mounting plate 5 is installed at a top corner below the battery body 1. In order to enhance reliability, the mounting plate 5 can be directly welded to the battery body 1.

[0080] The support member 6 is fixed on the battery box 2 .

[0081] The position of the support member 6 matches the position of the connecting plate 5 . For example, in a preferred embodiment, the mounting plate 5 is located at a top corner below the box body, and accordingly, the support member 6 is mounted on the bottom plate of the battery box 2 .

[0082] The hinge member 7 is rotatably connected to the support member 6 and can rotate relative to the support member 6 .

[0083] It should be understood that the rotation structure between the hinge 7 and the support 6 can be fixed, that is, when the fixed structure between the two is unlocked, the two can rotate relative to each other, and when the fixed structure between the two is in an acting state, the relative rotation between the two is restricted and locked.

[0084] The locking rod 8 passes through the hinge 7 .

[0085] In the embodiment of the present invention, the locking rod 8 passes through one side of the connecting plate 5. Its length is configured so that it can contact the connecting plate 5 after passing through, and fix the position of the battery box 2 by applying force to the connecting plate 5 to prevent the battery box 2 from moving. In order to facilitate the adjustment of the position of the locking rod 8, an internal thread hole can be provided on the hinge 7, and an external thread can be designed on the locking rod 8, so that the locking rod 8 and the hinge 7 are threadedly matched.

[0086] In order to facilitate the fixation between the locking rod 8 and the connecting plate 5, the matching ends of the locking rod 8 and the connecting plate 5 are provided with friction pads 801; in the locked state, the friction pads 801 abut against the connecting block 5. In order to improve the fixing effect, the size of the friction pads 801 can be increased. In this embodiment, the friction pads 801 are designed to be disc-shaped with a larger diameter than the locking rod 8, and are made of a material with a high friction coefficient. This can increase the force between the friction pads 801 and the connecting block 5.

[0087] The locking pin mounting plate 9 is fixed on the hinge 7, and the locking pin 10 is inserted on the locking pin mounting plate.

[0088] The locking pin mounting plate 9 can be directly fixed on the hinge 7 through a fixing member. In order to facilitate the adjustment of the position of the locking pin mounting plate 9, the locking pin mounting plate 9 can also be installed on the hinge 7 through a fixing seat 11. The mounting hole on the fixing seat 11 through which the fixing member 12 is inserted is an oblong hole (not visible in the figure), and its length direction is parallel to the direction of the bottom plate of the battery box 2. The position of the locking pin 10 can be adjusted by the position of the fixing member 12 relative to the oblong hole.

[0089] The battery body 1 is pushed into the battery box 2. In the locked state, the hinge 7 rotates around the support 6 to the side close to the connecting plate 5, and the locking rod 8 can be abutted against the support through the protruding end of the hinge 7. The locking pin 10 is connected to the locking rod 8 and fixes the position of the locking rod 8; the battery body 1 is pulled out of the battery box 2. In the unlocked state, the locking pin 10 is disconnected from the locking rod 8, and the hinge 7 rotates around the support 6 until the locking rod 8 is disconnected from the support 6.

[0090] It should be understood that in order to avoid interference between the locking structure and the movement of the battery body 1, the support member 6 can be installed on the side of the battery body 1. In the illustrated structure of this embodiment, the support member 6 is installed in front of the battery body 1, that is, in the direction in which the battery body 1 is pulled out through the battery box 2. Since the roller 101 structure at the bottom of the battery body 1 increases the height of the battery body 1 as a whole, the height of the support member 6 is fixed. In order to avoid movement interference, the height of the support member 6 is designed to be less than the height of the battery body 1 lifted by the roller 101.

[0091] In the locked state, after the hinge 7 rotates around the support 6, the heights of the hinge 7 and the support 6 overlap, so that the hinge 7 can partially reach the height of the battery body 1, and the locking rod 8 can cooperate with the battery body 1. In the unlocked state, after the hinge 7 rotates around the support 6, the height of the support 6 does not affect the battery body 1 from being pulled out of the battery box 2.

[0092] The quick locking structure provided in this embodiment is easy to operate and can be adapted to battery bodies 1 of various sizes by adjusting the position of the locking rod 8 and the position of the locking pin 10 , thus having strong applicability.

[0093] The locking structure provided by the present invention limits the movement of the locking rod 8 by the cooperation between the locking pin 10 and the locking rod 8. In order to limit the movement of the locking rod 8, the locking pin 10 and the locking rod 8 can be fixed in the locked state, for example, a fixing piece or an insert fixing structure can be designed.

[0094] In some embodiments of the present invention, in order to facilitate the fixation between the locking pin 10 and the locking rod 8, a groove structure 802 is provided on the rod body of the locking rod 8 at the end passing through the hinge 7. In the locked state, the mating ends of the locking pin 10 and the locking rod 8 are located in the groove structure 802.

[0095] For easy operation, the groove structure 802 surrounds the rod wall of the locking rod 8. The end of the locking pin 10 is inserted into the groove structure 802 of the locking rod 8, and even if the locking rod 8 rotates, the locking pin 10 will not fall out of the groove structure 802. It should be understood that the width of the end of the locking pin 10 is designed to be equal to the width of the groove structure 802, which can ensure the matching between the two.

[0096] During the locking and unlocking process, it is necessary to adjust the relative positions of the locking pin 10 and the locking rod 8. In order to facilitate the adjustment of the position of the locking pin 10, a plug-in fixing structure of the locking pin 10 relative to the locking pin mounting plate 9 is designed.

[0097] In some embodiments of the present invention, a through hole is provided on the locking pin mounting plate 9.

[0098] In order to fix the locking pin 10, the cross section of the through hole is polygonal, and in this embodiment, it is hexagonal; a polygonal fixing piece 1001 is provided on the outer wall of the locking pin 10, and the shape of the polygonal fixing piece 1001 is the same as the shape of the cross section of the through hole, and the polygonal fixing piece 1001 includes a first size segment matching the aperture of the through hole, and a second size segment larger than the aperture of the through hole; the locking pin 10 passes through the through hole; the first size segment of the polygonal fixing piece 1001 can be inserted into the through hole, and the second size segment can be stuck outside the through hole. The polygonal fixing piece 1001 is a nut, and a thread is provided on the outer wall of the locking pin 10. The nut is screwed into the thread, and then the position of the nut can be adjusted according to the different size structures of the battery body 1 and the battery box 2 to adjust the working length of the locking pin 10.

[0099] In the locked state, the head of the locking pin 10 is inserted into the groove structure 801; in the unlocking process, the locking pin 10 is pulled to the side away from the locking rod 8 to disconnect the locking pin 10 from the locking rod 8. This structure enables the locking pin 10 to be pulled along the through hole and prevents the locking pin 9 from falling out through the second size segment, which is convenient for operation.

[0100] In some embodiments of the present invention, the locking pin 10 includes a main body and an end portion that cooperates with the locking rod 8, the end portion having a larger radial dimension than the main body of the locking pin 10, and an elastic member is sleeved on the section of the locking pin 10 passing through the through hole. In this embodiment, the elastic member is a compression spring 13.

[0101] In the unlocked state, when the locking pin 9 is pulled out, the compression spring 13 is compressed. When the locking pin 9 is released from the slot structure 801 of the locking rod 8, the locking pin 9 is released, and the length of the locking pin 9 is restored under the action of the compression spring 13. In the locked state, the compression spring 13 is in a compressed state, generating a thrust on the end of the locking pin 9 to ensure that the locking pin 9 can be more stably located in the slot structure 1001.

[0102] In some embodiments of the present invention, the support member 6 includes a first vertical plate 601 and a second vertical plate 602 arranged in parallel and spaced apart, and a third vertical plate 603 connecting the first vertical plate 601 and the second vertical plate 602, and the hinge member 7 is rotatably installed in the gap between the first vertical plate 601 and the second vertical plate 602 via the pin shaft 14. Figures 5 to 7 As shown, pin holes are provided on the first vertical plate 601 and the second vertical plate 602 , and the pin 14 is inserted through the pin hole of one vertical plate, passes through the other side, and is fixed by a pin clamp to prevent the pin 14 from falling out.

[0103] In order to ensure the normal rotation of the hinge 7, the joint structure of the plurality of vertical plates needs to be designed. In some embodiments of the present invention, the first vertical plate 601 and the second vertical plate 602 are of the same height, and the height of the third vertical plate 603 is less than that of the first vertical plate 601, so as to provide a rotation space for the hinge 7.

[0104] like Figure 5 As shown, the hinge 7 is mounted on the bottom plate of the battery box 2, and the bottoms of the first vertical plate 601, the second vertical plate 602 and the third vertical plate 603 are all mounted on the bottom plate of the battery box 2, and the first vertical plate 601 and the second vertical plate 602 are higher than the third vertical plate 603. The size and installation position of the hinge 7 are controlled, and the hinge 7 rotates to the side opposite to the third vertical plate 603, and the bottom of the hinge 7 does not interfere with the third vertical plate 603 during rotation.

[0105] The locking device also includes a fixing buckle 15, the structure of which is shown in FIG. Figure 3The fixing buckle 15 is sleeved on the outer side of the hinge 7, and is a non-fixed connection structure between the hinge 7 and the support 6, and can move up and down along the outer side of the hinge 7; a buckle fitting portion 604 is formed at the top of the first vertical plate 601 and the second vertical plate 602 in the height direction, and a vertical plate fitting portion 1501 is provided on one side of the fixing buckle 15 facing the first vertical plate 601 and the second vertical plate 602; in the locked state, the corresponding buckle fitting portion overlaps with the vertical plate fitting portion to limit the rotation of the hinge 7.

[0106] In this embodiment, the buckle fitting portion 604 is an arc-shaped protruding structure, and the vertical plate fitting portion 1501 is an arc-shaped groove structure corresponding to the buckle fitting portion 604. In the locked state, the buckle fitting portion 604 is inserted into the vertical plate fitting portion 1501 to limit the rotation of the hinge 7. In the unlocked state, the fixing buckle 15 is moved upward, the vertical plate fitting portion 1501 is disengaged from the buckle fitting portion 604, and the hinge 7 can rotate.

[0107] It should be understood that in other embodiments of the present invention, the vertical plate mating portion 1501 may be designed as a convex arc structure, and the buckle mating portion 604 may be designed as an arc groove structure.

[0108] In the embodiment of the present invention, the first vertical plate 601, the second vertical plate 602 and the third vertical plate 603 are spliced ​​to form a square column-shaped cavity, and the hinge 7 is tubular and arranged in the square column-shaped cavity. As a more preferred embodiment, the hinge 7 can be designed as a square column tubular. Through this structure, the rotation direction of the hinge 7 can be limited, and the hinge 7 can be prevented from producing unnecessary shaking within the range limited by the support member 6, thereby stabilizing the locking structure.

[0109] In some embodiments of the present invention, the hinge 7 includes a nut column section 701, which has an internal thread; the locking rod 8 has an external thread, which matches the internal thread of the nut column section 701; the locking rod 8 passes through the nut column section 701 and is threadedly connected to the hinge 7. Due to the limitation of different sizes of battery bodies 1, after the battery body 1 is pushed into the battery box 2, the distance between the locking rod 8 and the battery body 1 may be different. According to the distance between the end of the locking rod 8 and the battery body 1, the distance of the locking rod 8 being screwed in and out can be adjusted so that the locking rod 8 can maintain contact with the battery body 1.

[0110] In the aforementioned embodiment, the hinged member 7 is in the shape of a square tube, and the nut column section 701 is located inside the cavity of the square tube, between two opposite walls of the square tube.

[0111] The working principle of the locking structure provided by the present invention is as follows.

[0112] Locking process: The fixing buckle 15 is separated from the fixing between the first vertical plate 601 and the second vertical plate 602 of the support, and the hinge 7 is rotated in the direction close to the bottom plate of the battery box 2 (the side where the support 6 is installed); the battery body 1 is pushed into the battery box 2, and the hinge 7 is rotated in the direction close to the top plate of the battery box 2, and the fixing buckle 15 is aligned with the matching part between the first vertical plate 601 and the second vertical plate 602, and the fixing buckle 15 limits the rotation of the hinge 7. Rotate the locking rod 8 until the friction pad 801 is against the connecting plate 5. Adjust the position of the locking pin 10 through the oblong hole on the fixing member and the locking pin mounting plate 9 so that the locking pin 10 can be stuck in the groove structure 801 of the locking rod 8.

[0113] Unlocking process: pull the locking pin 10 outward to disengage the locking pin 10 from the slot structure 801, and rotate the locking rod 8 until the friction pad 801 is disengaged from the connecting plate 5. Move the fixing buckle 15 upward to disengage the fixing between the first vertical plate 601 and the second vertical plate 602 of the supporting member; rotate the hinge 7 toward the direction close to the bottom plate of the battery box 2, and pull the battery body 1 out of the battery box 2.

[0114] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery trolley quick lock device, wherein the battery box comprises a battery box and a battery body, and the battery box can slide in and out of the box body along a sliding structure between the battery box and the battery body, characterized in that: include: Connecting plate: fixed on the battery body; Supporting part: fixed on the battery box; Hinge: rotatably connected to the support member and capable of rotating relative to the support member; Locking rod: passing through the hinged part; Locking pin mounting plate: fixed on the hinged member; Locking pin: inserted into the locking pin mounting plate; Among them, in the locked state, the hinge rotates around the support member to the side close to the connecting plate, the locking rod can be against the support member through the protruding end of the hinge, and the locking pin is connected to the locking rod and fixes the position of the locking rod; in the unlocked state, the locking pin is disconnected from the locking rod, and the hinge rotates around the support member until the locking rod is disconnected from the support member.

2. The battery trolley quick lock device according to claim 1, characterized in that: The locking pin mounting plate is provided with a through hole, the cross section of which is polygonal; a polygonal fixing piece is provided on the outer wall of the locking pin, the shape of the polygonal fixing piece is the same as the cross section of the through hole, and the fixing piece includes a first size segment matching the aperture of the through hole, and a second size segment larger than the aperture of the through hole; the locking pin passes through the through hole; the first size segment of the fixing piece can be inserted into the through hole; During the unlocking process, the locking pin is pulled toward a side away from the locking rod to disconnect the locking pin from the locking rod.

3. The battery trolley quick lock device according to claim 1 or 2, characterized in that: A groove structure is provided on the rod body at the end of the locking rod passing through the hinged member. In a locked state, the matching ends of the locking pin and the locking rod are located in the groove structure.

4. The battery trolley quick lock device according to claim 3, characterized in that: The locking pin comprises a main body and an end portion cooperating with the locking rod, wherein the end portion has a larger radial dimension than the main body of the locking pin, and an elastic member is sleeved on a section of the locking pin passing through the through hole.

5. The battery trolley quick lock device according to claim 1, characterized in that: The support member includes a first vertical plate and a second vertical plate which are arranged in parallel and spaced apart from each other, and a third vertical plate which connects the first vertical plate and the second vertical plate. The hinge is rotatably installed in the gap between the first vertical plate and the second vertical plate via a pin shaft.

6. The battery trolley quick lock device according to claim 5, characterized in that: The first vertical plate is equal in height to the second vertical plate, and the third vertical plate is smaller in height than the first vertical plate to provide a rotation space for the hinge; The locking device further comprises a fixing buckle, which is sleeved on the outside of the hinge; A buckle fitting portion is formed at the top of the first vertical plate and the second vertical plate in the height direction, and a vertical plate fitting portion is provided on one side of the fixing buckle facing the first vertical plate and the second vertical plate; In the locked state, the corresponding buckle ring mating portion overlaps with the vertical plate mating portion to limit the rotation of the hinge.

7. The battery trolley quick lock device according to claim 1, characterized in that: The hinged component comprises a nut column section, which has an internal thread; the locking rod has an external thread, which matches the internal thread of the nut column section; and the locking rod passes through the nut column section.

8. The battery trolley quick lock device according to claim 1 or 7, characterized in that: The hinge is tubular.

9. The battery trolley quick lock device according to claim 1, characterized in that: The matching ends of the locking rod and the connecting plate are provided with friction pads; in the locked state, the friction pads abut against the connecting block.

10. The battery trolley quick lock device according to claim 1, characterized in that: The connecting plate comprises three corner connecting plates which are perpendicular to each other. The battery body is a rectangular parallelepiped, and the connecting plate is installed at the top corners of the battery body.

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