Battery pressing structure

Abstract

The utility model discloses a battery pressing structure, which is characterized in that a lifting column is designed to integrate the functions of driving a pressing sleeve to rotate and lift, so that the structure is simple and practical; an elastic clamping structure which can be disengaged when being stressed in the circumferential direction is arranged between a pressing sleeve and a lifting column, and a pressed groove with two side walls different in height in the circumferential direction is correspondingly formed in the top of a battery; by means of the structure, the operation of locking the battery and unlocking the battery only needs to rotate the lifting column, the operation is simple, the problem that an existing battery pressing structure of the electric motorcycle is inconvenient to use can be effectively solved, and the use experience of a user and the product competitiveness can be improved; the battery pressing structure has good compatibility with the height, size and shape of the battery, can achieve a good pressing effect under the condition that the installation position of the battery is not accurate, can be used for a bestriding type electric motorcycle, can also be used for various types of vehicles, and is suitable for popularization and application. If the device is arranged below a seat cushion of a pedal type electric motorcycle to replace the seat cushion to press a battery, the device has good practicability.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery arrangement of riding vehicles, and particularly relates to a battery pressing structure. Background Art

[0002] To promote energy conservation and emission reduction, major cities have begun to advocate the use of electric transportation tools, such as electric buses, electric vehicles, and electric motorcycles. Electric motorcycles are one of the most convenient electric transportation tools for personal travel at present. In particular, the cross-riding electric motorcycles are popular among many young people due to their advantages of being lightweight, quiet, beautiful, and simple in shape.

[0003] At present, the cross-riding electric motorcycles generally set the battery at the position corresponding to the upper fuel tank of the fuel motorcycle. For example, the anti-rotation structure of the battery pressing bracket of the electric motorcycle disclosed in Chinese Patent CN210618370U forms a receiving bin through the left main beam and the right main beam and makes the opening above it for taking and placing the battery. To limit the vertical movement of the battery in the receiving bin, such as the electric motorcycle disclosed in Chinese Patent CN220577423U and a battery disassembly and assembly method disclosed in Chinese Patent CN116404343A, generally, a bin cover that can be flipped open and closed and can press the battery when closed is set at the opening of the receiving bin. When taking and placing the battery, the bin cover is flipped open to expose the opening of the receiving bin, and after the battery is placed, the bin cover is flipped closed to press the battery. To fully expose the opening of the receiving bin to make the taking and placing of the battery smoother, the bin cover often needs to be flipped at a large angle, which not only makes the taking and placing of the battery more troublesome and inconvenient to use, but also, to avoid interference between the flipped bin cover and the structure of the vehicle head, it is easy to limit the design of the bin cover and the vehicle head. Summary of the Invention

[0004] Aiming at the above deficiencies of the prior art, the purpose of the utility model is to provide a battery pressing structure, solve the technical problem of inconvenient use of the existing battery pressing structure of electric motorcycles, and achieve the effects of convenient operation and beneficial to the shape design.

[0005] To solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A battery pressing structure includes a battery vertically placed on a vehicle body. On one side of the battery, a lifting column is vertically provided. The lower end of the lifting column is threadedly connected to the vehicle body so that the lifting column can rotate and lift. A pressing sleeve that synchronously lifts and lowers is rotatably sleeved on the lifting column. A pressing arm protrudes towards the battery on the pressing sleeve. The pressing arm is higher than the battery. The top of the battery has a pressing groove adapted to the pressing arm. The pressing arm falls into the pressing groove to press the battery. In the circumferential direction of the pressing sleeve, the upper edges of the two side walls of the pressing groove have a height difference and are respectively formed into a high side wall and a low side wall. The high side wall is located in the rotation direction of the lifting column rotating downward, and the low side wall is located in the rotation direction of the lifting column rotating upward. An elastic clamping structure is provided between the pressing sleeve and the lifting column to drive the pressing sleeve to rotate synchronously with the lifting column. When the lifting column drives the pressing sleeve to rotate until the pressing arm abuts against any one of the two side walls of the pressing groove and continues to rotate in the same direction, the elastic clamping structure elastically disengages, and the pressing sleeve only lifts and lowers synchronously with the lifting column and rotates relatively.

[0007] Further, the elastic clamping structure includes a matching clamping groove and a clamping protrusion. The clamping groove is opened on the end face or the inner side face of the pressing sleeve. In the circumferential direction of the pressing sleeve, the two side walls of the clamping groove are inclined planes and the mouth size of the clamping groove is larger than the bottom size. The clamping protrusion is connected to the lifting column through an elastic member. The clamping protrusion falls into the clamping groove under the action of the elastic member to achieve clamping. When the clamping protrusion is located in the clamping groove, the pressing sleeve rotates synchronously with the lifting column. When the lifting column drives the pressing sleeve to rotate until the pressing arm abuts against any one of the two side walls of the pressing groove and continues to rotate in the same direction, the clamping protrusion is disengaged from the clamping groove under the abutting action of the inclined plane of the side wall of the clamping groove to achieve elastic disengagement. The pressing sleeve can rotate relatively with the lifting column, and the elastic member undergoes elastic deformation and keeps the clamping protrusion moving towards the pressing sleeve.

[0008] Further, a plurality of the clamping grooves and the clamping protrusions are respectively evenly arranged in the circumferential direction of the pressing sleeve, and the number of the clamping grooves is more than that of the clamping protrusions.

[0009] Further, the lifting column has an upper limiting portion and a lower limiting portion protruding radially. The pressing sleeve is vertically abutted and arranged between the upper limiting portion and the lower limiting portion so that the pressing sleeve can lift and lower synchronously with the lifting column.

[0010] Further, a ring groove is opened on the lifting column below the pressing sleeve, and an elastic snap ring is provided through the ring groove. The part of the elastic snap ring located outside the ring groove forms the lower limiting portion.

[0011] Further, the clamping groove is opened on the upper end face of the pressing sleeve, and the clamping protrusion is connected to the upper limiting portion through an elastic member.

[0012] Furthermore, the lifting column is provided with an upper limit portion and a lower limit portion protruding in the radial direction, the pressing sleeve is located between the upper limit portion and the lower limit portion, a connecting ring is abutted between the upper end of the pressing sleeve and the upper limit portion, and the lower end of the pressing sleeve abuts against the lower limit portion, so that the pressing sleeve can be lifted and lowered synchronously with the lifting column; the connecting ring is sleeved on the lifting column and connected to the lifting column for synchronous rotation, a connecting portion is formed on the outer side surface of the connecting ring in a radially protruding manner, the free end of the connecting portion is bent and extended in a circumferential direction to form a connecting arm, the free end of the connecting arm protrudes downward to form the clamping protrusion, and the connecting arm is formed as the elastic member.

[0013] Furthermore, a groove is formed on the upper end surface of the connecting ring, and a protrusion corresponding to the groove is formed on the lower end surface of the upper limit portion. The protrusion is located in the groove, so that the connecting ring is synchronously rotatably connected with the lifting column.

[0014] Furthermore, a screw cover with an opening facing downward is provided at the upper end of the lifting column and is fixedly connected by screws. The lower end of the screw cover is close to the pressing sleeve. The upper end of the lifting column, the upper limit portion, the connecting ring, the connecting portion and the connecting arm are all located on the inner side of the screw cover. The connecting portion also protrudes radially to form a side limit portion. A side limit groove matching the side limit portion is provided on the inner wall of the screw cover. The side limit groove extends vertically to the lower end of the screw cover. The side limit portion is located in the side limit groove, so that the connecting ring and the lifting column are connected in synchronous rotation.

[0015] Furthermore, a first check portion is provided on the side of the pressing sleeve away from the battery, one end of the first check portion is close to the pressing sleeve and the other end is connected to the vehicle body, the first check portion is elastic, and a second check portion is formed on a convex outer surface of the pressing sleeve, and the second check portion is at the same height as the first check portion; when the pressing arm rotates away from above the battery, the first check portion is squeezed by the second check portion and deformed, and gives way to allow the second check portion to move circumferentially to the other side of the first check portion.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. In the battery pressing structure described in the utility model, the lifting column integrates the functions of driving the pressing sleeve to rotate and lift, so that the structure is simple and practical; an elastic clamping structure that can be disengaged when subjected to force in the circumferential direction is provided between the pressing sleeve and the lifting column, and a pressure groove with different heights on both sides of the circumferential wall is provided on the top of the battery, so that the pressing arm can rotate synchronously with the lifting column before it reaches the top of the pressure groove during forward rotation and after it is reversed and raised and escapes from the pressure groove, so that the pressing arm only rises and falls with the lifting column after it rotates to the top of the pressure groove with the lifting column and before it is reversed and raised and escapes from the pressure groove; the operation of locking the battery and unlocking the battery only requires rotating the lifting column, which is simple to operate and can effectively solve the problem of inconvenience in using the current battery pressing structure of electric motorcycles, which is conducive to improving the user experience and product competitiveness.

[0018] 2. The battery pressing structure of the present utility model has good compatibility with the height, size and shape of the battery. Moreover, even when the installation position of the battery is inaccurate, it can ensure that the pressing effect is not affected. The battery pressing structure can be used not only for cross-riding electric motorcycles, but also for various types of vehicles. For example, it can be installed under the seat of a scooter-type electric motorcycle to provide a more stable and reliable pressing effect on the battery instead of the seat.

[0019] 3. The battery pressing structure of the present utility model has an open battery compartment, eliminating the design of the battery compartment cover, saving costs and occupying less space. The pressing arm only needs to rotate by 90 degrees or even a smaller angle to place and remove the battery, and there is less possibility of interference with other structural components on the vehicle body, which is beneficial to reducing the design and manufacturing difficulty and enhancing the design aesthetic. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a top view of the battery pressing structure in the unlocked state described in Embodiment 1;

[0021] Figure 2 It is a front view of the pressing arm rotated above the pressure receiving groove described in Embodiment 1;

[0022] Figure 3 It is a front view of the pressing arm lowered into the pressure receiving groove described in Embodiment 1;

[0023] Figure 4 It is a top view of the battery pressing structure in the locked state described in Embodiment 1;

[0024] Figure 5 For Figure 4 the cross-sectional schematic view of A-A in;

[0025] Figure 6 It is a schematic view of the position of the battery pressing structure at the front part of the vehicle body described in Embodiment 1;

[0026] Figure 7 For the battery pressing structure described in Embodiment 2 corresponding to Figure 4 the partial cross-sectional schematic view of B-B in;

[0027] Wherein, battery 1, lifting column 2, pressing sleeve 3, pressing arm 4, clamping groove 5, clamping projection 6, pressure receiving groove 7, short side wall 8, high side wall 9, stud 10, upper limit portion 11, elastic snap ring 12, connecting ring 13, connecting portion 14, connecting arm 15, protrusion 16, first anti-return portion 17, second anti-return portion 18, screwing portion 19, screwing cover 20, side limit portion 21, screw 22. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model.

[0029] Embodiment 1:

[0030] Please refer to Figure 1 and Figure 2 , a battery pressing structure, including a battery 1 vertically placed on a vehicle body. A lifting column 2 is vertically arranged on one side of the battery 1. The lower end of the lifting column 2 is threadedly connected to the vehicle body so that the lifting column 2 can rotate and lift; a pressing sleeve 3 that is slidably engaged with the lifting column 2 and can lift with the lifting column 2 is sleeved on the lifting column 2;

[0031] A clamping groove 5 is formed on the end face or inner side face of the pressing sleeve 3. In the circumferential direction of the pressing sleeve 3, the two side walls of the clamping groove 5 are inclined planes and the mouth size of the clamping groove 5 is larger than the bottom size; a clamping protrusion 6 adapted to the clamping groove 5 is connected to the lifting column 2 through an elastic member, and the clamping protrusion 6 can move along the depth direction of the clamping groove 5; when the clamping protrusion 6 is located in the clamping groove 5, the pressing sleeve 3 can rotate with the lifting column 2. When the clamping protrusion 6 disengages from the clamping groove 5, the pressing sleeve 3 can rotate relative to the lifting column 2, and the elastic member undergoes elastic deformation and makes the clamping protrusion 6 maintain a tendency to move towards the pressing sleeve 3;

[0032] A pressing arm 4 is formed on the pressing sleeve 3 to protrude towards the battery 1. The end of the pressing arm 4 is higher than the battery 1. The top of the battery 1 has a pressing groove 7 adapted to the end of the pressing arm 4. The pressing arm 4 can descend into the pressing groove 7 to press and fix the battery 1. In the circumferential direction of the pressing sleeve 3, there is a height difference between the upper edges of the two side walls of the pressing groove 7. In the rotation direction of lowering the lifting column 2, the high side wall 9 of the two side walls of the pressing groove 7 is located behind the low side wall 8. The pressing arm 4 can rise out of the pressing groove 7 and rotate away from above the battery 1 through the low side wall 8; the adaptation of the pressing groove 7 to the end of the pressing arm 4 means that in the circumferential direction of the pressing sleeve 3, the minimum dimension (width) of the pressing groove 7 should be at least larger than the dimension of the end of the pressing arm 4 so that the end of the pressing arm 4 can smoothly descend into the pressing groove 7 to achieve battery pressing. That is, during implementation, except Figure 4 the shapes of the two shown are completely matched, the pressing groove or / and the end of the pressing arm 4 can also be rectangular, U-shaped, semi-circular, or even triangular, etc., and the specific morphology is not limited.

[0033] For the battery pressing structure of the present utility model, 1) different from a flip-type hatch cover, a pressing sleeve 3 is movably sleeved on a vertically arranged lifting column 2, and the lifting column 2 is used as the rotation axis for the rotational connection between the pressing sleeve 3 and the vehicle body. By horizontally rotating the pressing sleeve 3, the pressing arm 4 is located above the battery 1 to restrict the vertical movement of the battery 1; the lifting column 2 is threadedly connected to the vehicle body, and the lifting column 2 also serves as a height adjustment component for adjusting the height of the pressing sleeve 3 on the vehicle body. By rotating the lifting column 2, the pressing sleeve 3 is driven to lift, so that the pressing arm 4 of the pressing sleeve 3 can vertically press and fix the battery 1;

[0034] 2) A clamping groove 5 and a clamping protrusion 6 are respectively arranged on the pressing sleeve 3 and the lifting column 2. The two side walls of the clamping groove 5 in the circumferential direction are inclined surfaces. The clamping protrusion 6 is connected to the lifting column 2 through an elastic member, so as to form an elastic clamping structure between the pressing sleeve 3 and the lifting column 2 that can be disengaged when stressed in the circumferential direction. When the lifting column 2 is rotated and the rotation of the pressing sleeve 3 is blocked, the clamping protrusion 6 will be disengaged from the clamping groove 5 under the guidance of the inclined surface of the side wall of the clamping groove 5, enabling the pressing sleeve 3 to rotate relative to the lifting column 2, and the elastic member undergoes elastic deformation. When the lifting column 2 is rotated and the rotation of the pressing sleeve 3 is not blocked, after the pressing sleeve 3 and the lifting column 2 rotate relative to each other by a certain angle and the clamping protrusion 6 is vertically aligned with the clamping groove 5, the clamping protrusion 6 will quickly fall into the clamping groove 5 under the elastic force of the elastic member, so that the pressing sleeve 3 and the lifting column 2 are rotationally connected synchronously. At this time, rotating the lifting column 2 can directly drive the pressing sleeve 3 to rotate. Correspondingly, a pressure-receiving groove 7 with uneven side walls in the circumferential direction on both sides is arranged at the top of the battery 1. When the end of the pressing arm 4 just rotates above the pressure-receiving groove 7 and has not descended, the lower edge of the end of the pressing arm 4 should be higher than the lower side wall 8 and lower than the higher side wall 9;

[0035] For the convenience of explanation, the rotation direction from the lower side wall 8 to the higher side wall 9 is defined as the forward rotation, and the reverse is the reverse rotation; as Figure 1 shown, when the end of the pressing arm 4 deviates from above the battery 1, the battery pressing structure is in the unlocked state, and the battery 1 can be vertically placed and removed on the vehicle body. After the battery 1 is vertically placed, rotate the lifting column 2 forward, the rotation of the pressing sleeve 3 is not blocked, and it rotates and descends with the lifting column 2; as Figure 2 shown, when the pressing sleeve 3 rotates to directly above the pressure-receiving groove 7 with the lifting column 2 after passing the lower side wall 8, the pressing sleeve 3 abuts against the higher side wall 9, the rotation of the pressing sleeve 3 is blocked, the pressing sleeve 3 rotates relative to the lifting column 2, and it rotates and descends forward with the lifting column 2; as Figure 3 and Figure 4 shown, continue to rotate the lifting column 2 forward, the pressing sleeve 3 only descends with the lifting column 2, and finally the pressing arm 4 falls into the pressure-receiving groove 7 and vertically presses and fixes the battery 1, and the battery pressing structure is in the locked state. When the battery 1 needs to be taken out, rotate the lifting column 2 in reverse, the pressing sleeve 3 is blocked by the lower side wall 8, and the pressing sleeve 3 rotates relative to the lifting column 2. At this time, the pressing sleeve 3 only rises with the lifting column 2. When the lower edge of the end of the pressing arm 4 is higher than the lower side wall 8, the rotation of the pressing sleeve 3 is no longer blocked, and the end of the pressing arm 4 rotates again with the lifting column 2 and leaves above the pressure-receiving groove 7. When the end of the pressing arm 4 completely leaves above the battery 1 and returns to the Figure 1 unlocked state shown, the battery 1 can be vertically removed from the vehicle body.

[0036] In the battery 1 pressing structure of the present utility model, the lifting column 2 integrates the functions of driving the pressing sleeve 3 to rotate and lift, making the structure simple and practical; by arranging an elastic clamping structure between the pressing sleeve 3 and the lifting column 2 that can be disengaged when stressed circumferentially, and correspondingly arranging a pressing groove 7 with uneven heights on the circumferential two side walls at the top of the battery 1, the pressing arm 4 can rotate synchronously with the lifting column 2 before the forward rotation reaches above the pressing groove 7 and after the reverse rotation rises and disengages from the pressing groove 7, and the pressing arm 4 only rises and falls with the lifting column 2 after the forward rotation reaches above the pressing groove 7 and before the reverse rotation rises and disengages from the pressing groove 7; thus, the operations of locking and unlocking the battery 1 only require rotating the lifting column 2, which is simple in operation and can effectively solve the problem of inconvenient use of the current battery pressing structure of electric motorcycles. During implementation, please refer to Figure 6 that only one such battery pressing structure needs to be arranged on the vehicle body, which requires less space, and the pressing arm 4 only needs to rotate by 90 degrees or even a smaller amplitude to pick up and place the battery 1, and the possibility of interference with other structural components on the vehicle body is smaller, which is beneficial to reducing the design and manufacturing difficulty.

[0037] During implementation, an external thread can be arranged at the lower end of the lifting column 2, and a threaded hole is correspondingly arranged on the vehicle body so that the lifting column 2 is threadedly connected to the vehicle body, and the section of the lifting column 2 connected to the pressing sleeve 3 is a smooth rod section; in this embodiment, please refer to Figure 1 and Figure 3 that a stud 10 is vertically and fixedly arranged on the vehicle body, and a threaded hole is opened on the lower end surface of the lifting column 2, and the lifting column 2 is threadedly connected to the vehicle body through the threaded hole in cooperation with the stud 10.

[0038] Please refer to Figure 4 that a plurality of card slots 5 and card protrusions 6 are respectively arranged evenly in the circumferential direction of the pressing sleeve 3, and the number of card slots 5 is more than that of card protrusions 6; in this way, when the pressing sleeve 3 rotates without being blocked, a plurality of circumferentially evenly distributed card protrusions 6 are located one by one in a plurality of card slots 5, making the elastic clamping structure have better structural strength and stability, ensuring that the pressing sleeve 3 rotates smoothly with the lifting column 2; the number of card slots 5 is more than that of card protrusions 6, so that after the pressing arm 4 rises and disengages from the pressing groove 7, the lifting column 2 and the pressing sleeve 3 only need to rotate a relatively small angle relative to each other to resume synchronous rotational connection from below, which can effectively reduce the dead stroke and improve the operation efficiency.

[0039] Please refer to Figure 3 and Figure 5The lifting column 2 has an upper limit portion 11 and a lower limit portion with radial protrusions 16, and the pressing sleeve 3 is vertically abutted between the upper limit portion 11 and the lower limit portion, so that the pressing sleeve 3 can be lifted and lowered with the lifting column 2; for ease of assembly, an annular groove is provided below the pressing sleeve 3 on the lifting column 2, and an elastic clamping ring 12 is provided through the annular groove, and the part of the elastic clamping ring 12 located outside the annular groove forms the lower limit portion; in this way, the pressing sleeve 3 can be inserted from the lower end of the lifting column 2, and then the elastic clamping ring 12 is installed to fix the vertical position of the pressing sleeve 3 on the lifting column 2.

[0040] During implementation, the slot can be opened on the inner side surface of the pressing sleeve 3, and correspondingly, a slide groove is opened radially on the outer side surface of the lifting column 2, a slider is set in the slide groove as the locking protrusion, and a compression spring is connected between the locking protrusion and the bottom of the slide groove; or the slot is opened on the upper end surface of the pressing sleeve 3, and correspondingly, a slide groove is opened axially on the lower end surface of the upper limit portion 11, a slider is set in the slide groove as the locking protrusion, and a compression spring is connected between the locking protrusion and the bottom of the slide groove.

[0041] In this embodiment, see Figure 3 , Figure 4 and Figure 5 The card slot 5 is opened on the upper end surface of the pressing sleeve 3, and the card protrusion 6 is connected to the upper limit portion 11 through an elastic member; specifically, a connecting ring 13 is abutted between the upper limit portion 11 and the pressing sleeve 3, and the connecting ring 13 is sleeved on the lifting column 2 and is synchronously rotated and connected to the lifting column 2. A connecting portion 14 is formed on the outer surface of the connecting ring 13 along a radial protrusion 16, and the free end of the connecting portion 14 is bent and extended along the circumferential direction to form a connecting arm 15, and the free end of the connecting arm 15 protrudes downward 16 to form the card protrusion 6, and the connecting arm 15 is elastic and serves as the elastic member; the slot 5 is located outside the upper limit portion 11, and the slot 5 is adapted to the radial position of the protrusion 6; in this way, all the protrusions 6 and the elastic members are designed as one body, so that the battery 1 compression structure is easier to assemble; in addition, during implementation, the protrusion 16 can be directly formed on the outer surface of the upper limit portion 11 to form the connecting portion 14, the connecting arm 15 and the protrusion 6, but the connecting portion 14, the connecting arm 15 and the protrusion 6 are separated from the upper limit portion 11 by the connecting ring 13, which is conducive to reducing the manufacturing difficulty.

[0042] During implementation, a screw threadedly connected to the connecting ring 13 can be vertically penetrated on the upper limit portion 11, so that the connecting ring 13 rotates synchronously with the lifting column 2. Figure 3 In this embodiment, in order to reduce the use of fasteners, reduce assembly difficulty and manufacturing costs, a groove is provided on the upper end surface of the connecting ring 13, and the lower end surface of the upper limit portion 11 has a protrusion 16 corresponding to the groove. The protrusion 16 is located in the groove, so that the connecting ring 13 is connected to the lifting column 2 in synchronous rotation.

[0043] See also Figure 3 andFigure 4 On one side of the pressing sleeve 3 away from the battery 1, a first check portion 17 is horizontally provided. One end of the first check portion 17 is close to the pressing sleeve 3, and the other end is connected to the vehicle body. The first check portion 17 is elastic. A second check portion 18 is formed by a protrusion 16 on the outer side surface of the pressing sleeve 3. The second check portion 18 is at the same height as the first check portion 17. In this way, when the pressing arm 4 rotates away from above the battery 1, the first check portion 17 is deformed by the extrusion of the second check portion 18 and gives way to enable the second check portion 18 to move circumferentially to the other side of the first check portion 17. That is, after the pressing arm 4 rotates away from above the battery 1, the first check portion 17 acts as a blocking function on the second check portion 18 to prevent the pressing arm 4 from easily rotating back to its original position, which may cause an obstruction to the taking and placing of the battery 1, such as when the vehicle body is in an inclined state on the parking ground. It can be understood that the force for the second check portion 18 to squeeze the first check portion 17 to deform and give way should be less than the force for the elastic clamping structure to disengage, so as to ensure that the rotatable lifting column 2 enables the second check portion 18 to pass through the first check portion 17 circumferentially. In addition, to prevent the pressing arm 4 from continuing to rotate reversely to the position for placing the battery 1 after the second check portion 18 passes through the first check portion 17, which may cause an obstruction to the taking and placing of the battery 1, in implementation, a blocking portion can be additionally provided on one side of the first check portion 17 in the reverse rotation direction, which is used to abut against the second check portion 18 after the second check portion 18 passes through the first check portion 17 to prevent the pressing arm 4 from continuing to rotate reversely.

[0044] Please refer to Figure 3 and Figure 4 The upper limit portion 11 is located at the upper end of the lifting column 2. The upper end surface of the upper limit portion 11 further has a rectangular protrusion 16 to serve as a screwing portion 19 for facilitating the screwing of the lifting column 2.

[0045] Embodiment 2:

[0046] Please refer to Figure 7 The difference from Embodiment 1 is that a screwing cover 20 with an opening facing downwards is provided at the upper end of the lifting column 2 and is fixedly connected by a screw 22. The lower end of the screwing cover 20 is close to the pressing sleeve 3. The upper end of the lifting column 2, the upper limit portion 11, the connecting ring 13, the connecting portion 14, and the connecting arm 15 are all located inside the screwing cover 20. A side limit portion 21 is formed by a radial protrusion 16 at the free end of the connecting portion 14. A side limit groove matching the side limit portion 21 is opened on the inner wall of the screwing cover 20. The side limit groove extends vertically to the lower end of the screwing cover 20. The side limit portion 21 is located in the side limit groove so that the connecting ring 13 is synchronously rotatably connected to the lifting column 2. Similarly, the part of the screwing cover 20 higher than the upper limit portion 11 is relatively flattened in the transverse direction to form a screwing portion 19, and the length of the screwing portion 19 corresponds to the outer diameter of the screwing cover 20, so as to rotate the screwing cover 20 to drive the lifting column 2 to rotate to achieve lifting.

[0047] In this way, by screwing the cover 20 to cover the upper limit portion 11, the connecting ring 13, the connecting portion 14 and the connecting arm 15, the exposure of components is reduced, which is beneficial to improving the appearance. Through the cooperation of the side limit groove on the cover 20 and the side limit portion 21 at the free end of the connecting portion 14, the connecting ring 13 is rotatably connected to the lifting column 2 synchronously. Compared with Embodiment 1, the distance between the mating part and the rotation axis in the radial direction is farther, and the structural strength is better. In addition, in this embodiment, a through hole communicating with the lower threaded hole is vertically formed on the upper end surface of the upper limit portion 11, and the screw 22 passes through the through hole from bottom to top through the threaded hole and is threadedly connected to the inner top surface of the cover 20, so that the screw 22 is not exposed, which is beneficial to improving the appearance.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than limiting them. Those of ordinary skill in the art should understand that any modifications or equivalent replacements made to the technical solutions of the present invention without departing from the purpose and scope of the present technical solution shall be covered by the scope of the claims of the present invention.

Claims

1. A battery pressing structure, characterized in that: It includes a battery vertically placed on the vehicle body. A lifting column is vertically provided on one side of the battery. The lower end of the lifting column is threadedly connected to the vehicle body so that the lifting column can be rotated and lifted. A pressing sleeve that synchronously lifts and lowers is rotatably sleeved on the lifting column. A pressing arm that protrudes towards the battery is formed on the pressing sleeve. The pressing arm is higher than the battery. The top of the battery has a pressing groove adapted to the pressing arm. The pressing arm falls into the pressing groove to press the battery. In the circumferential direction of the pressing sleeve, the upper edges of the two side walls of the pressing groove have a height difference and are respectively formed into a high side wall and a low side wall. The high side wall is located in the rotation direction of the lifting column rotating downward, and the low side wall is located in the rotation direction of the lifting column rotating upward. An elastic clamping structure is provided between the pressing sleeve and the lifting column for driving the pressing sleeve to rotate synchronously with the lifting column. When the lifting column drives the pressing sleeve to rotate until the pressing arm abuts against any one of the two side walls of the pressing groove and continues to rotate in the same direction, the elastic clamping structure elastically disengages, and the pressing sleeve only synchronously lifts and lowers with the lifting column and rotates relatively.

2. The battery pressing structure according to claim 1, characterized in that: The elastic clamping structure includes a matching clamping groove and a clamping protrusion. The clamping groove is opened on the end face or the inner side face of the pressing sleeve. In the circumferential direction of the pressing sleeve, the two side walls of the clamping groove are inclined planes and the opening size of the clamping groove is larger than the bottom size. The clamping protrusion is connected to the lifting column through an elastic member. The clamping protrusion falls into the clamping groove under the action of the elastic member to achieve clamping. When the clamping protrusion is located in the clamping groove, the pressing sleeve rotates synchronously with the lifting column. When the lifting column drives the pressing sleeve to rotate until the pressing arm abuts against any one of the two side walls of the pressing groove and continues to rotate in the same direction, the clamping protrusion is disengaged from the clamping groove under the abutting action of the inclined plane of the side wall of the clamping groove to achieve elastic disengagement. The pressing sleeve can rotate relative to the lifting column, and the elastic member undergoes elastic deformation and keeps the clamping protrusion moving towards the pressing sleeve.

3. The battery pressing structure according to claim 1, characterized in that: A plurality of the clamping grooves and the clamping protrusions are respectively uniformly arranged in the circumferential direction of the pressing sleeve, and the number of the clamping grooves is more than that of the clamping protrusions.

4. The battery pressing structure according to claim 1, wherein: The lifting column has an upper limit portion and a lower limit portion protruding radially. The pressing sleeve is vertically abutted and arranged between the upper limit portion and the lower limit portion so that the pressing sleeve can synchronously lift and lower with the lifting column.

5. The battery pressing structure according to claim 4, wherein: A ring groove is opened on the lifting column below the pressing sleeve, and an elastic snap ring is provided through the ring groove. The part of the elastic snap ring located outside the ring groove forms the lower limit portion.

6. The battery pressing structure according to claim 4, wherein: The clamping groove is opened on the upper end face of the pressing sleeve, and the clamping protrusion is connected to the upper limit portion through an elastic member.

7. The battery pressing structure according to claim 1, characterized in that: The lifting column has an upper limit portion and a lower limit portion protruding radially. The pressing sleeve is located between the upper limit portion and the lower limit portion. A connecting ring is abutted and arranged between the upper end of the pressing sleeve and the upper limit portion. The lower end of the pressing sleeve abuts against the lower limit portion so that the pressing sleeve can synchronously lift and lower with the lifting column. The connecting ring is sleeved on the lifting column and is synchronously rotatably connected to the lifting column. A connecting portion protruding radially is formed on the outer side face of the connecting ring. The free end of the connecting portion is bent and extends circumferentially to form a connecting arm. The free end of the connecting arm protrudes downward to form the clamping protrusion, and the connecting arm forms the elastic member.

8. The battery pressing structure according to claim 7, wherein: A groove is opened on the upper end face of the connecting ring, and a protrusion corresponding to the groove is provided on the lower end face of the upper limit portion. The protrusion is located in the groove so that the connecting ring is synchronously rotatably connected to the lifting column.

9. The battery pressing structure according to claim 7, wherein: The upper end of the lifting column is provided with a screwing cover with an opening facing downwards and is fixedly connected by screws. The lower end of the screwing cover is close to the pressing sleeve. The upper end, upper limit portion, connecting ring, connecting portion and connecting arm of the lifting column are all located inside the screwing cover. The connecting portion further radially protrudes to form a side limit portion. A side limit groove matching the side limit portion is opened on the inner wall of the screwing cover. The side limit groove extends vertically to the lower end of the screwing cover. The side limit portion is located in the side limit groove so that the connecting ring is synchronously rotationally connected with the lifting column.

10. The battery pressing structure according to claim 1, characterized in that: A first check portion is provided on the side of the pressing sleeve away from the battery. One end of the first check portion is close to the pressing sleeve and the other end is connected to the vehicle body. The first check portion is elastic. A second check portion is protruded on the outer side surface of the pressing sleeve. The second check portion is at the same height as the first check portion; when the pressing arm rotates away from above the battery, the first check portion is deformed by the extrusion of the second check portion and gives way to enable the second check portion to move circumferentially to the other side of the first check portion.

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