New energy electric vehicle quick-change battery box corner locking mechanism

Abstract

The utility model relates to the technical field of new energy batteries, in particular to a corner locking mechanism for a quick-change battery box of a new energy electric vehicle, which comprises a positioning rod and a locking rod, a screw rod is connected and supported between the positioning rod and the locking rod, a fixed seat is fixedly connected with the locking rod, and a through hole is formed in the fixed seat; the rotary moving seat is fixedly connected with the pressing plate, a screw hole is formed in the rotary moving seat, and the screw hole is in threaded connection with the screw rod; a through hole is formed in the fixing base, one section of the rotary moving base is arranged in the through hole in a sleeved mode, a guide mechanism is arranged between the fixing base and the rotary moving base, and when the screw is rotated, the guide mechanism enables the pressing plate to rotate by a set angle and move along a straight line to achieve locking of the battery box. According to the utility model, the rotation of the screw rod is converted into the rotation and linear pressing movement of the pressing plate by utilizing the guide mechanism, so that the problems of insufficient flexibility of a limiting mode and insufficient reliability or complicated structure of a pressing mode in the battery box are solved, and the mechanism is simple in structure, convenient to operate and capable of realizing quick locking and unlocking of the battery box.

Description

Technical Field

[0001] This utility model relates to the field of new energy battery technology, specifically to a corner locking mechanism for a quick-change battery box in a new energy electric vehicle. Background Technology

[0002] To meet the driving needs of new energy electric vehicles, battery swapping is currently the most common method to solve their range issues. Currently, a limiting mechanism is often used to prevent the battery pack from detaching. However, this limiting method cannot be adjusted according to the frame and battery pack dimensions, leaving a large gap to ensure interchangeability. This gap impacts the battery pack during vehicle operation and generates noise. Using a clamping method requires creating space during unlocking to facilitate battery pack removal, and current locking methods are either unreliable or structurally complex. Patent CN 221366548 U discloses a new energy battery locking mechanism, which can lock and unlock the battery pack. However, it uses a locking limiting plate on the mechanism's surface to restrict the rotation angle of the locking baffle, making it highly susceptible to deformation and displacement from external impacts, and easily damaging the device, lacking flexibility and reliability. Utility Model Content

[0003] The main purpose of this utility model is to provide a corner locking mechanism for the quick-change battery box of new energy electric vehicles, which aims to solve the problems of inflexibility of the limiting method and insufficient locking reliability or structural complexity of the clamping method during the battery box swapping process of new energy electric vehicles.

[0004] The technical solution adopted in this utility model is: a corner locking mechanism for a quick-change battery box of a new energy electric vehicle, comprising:

[0005] Positioning rod and locking rod;

[0006] A screw rod supports the connection between the positioning rod and the locking rod.

[0007] A fixed base is fixedly connected to the locking rod, and the fixed base has a through hole;

[0008] A rotating movable seat is fixedly connected to the pressure plate. The rotating movable seat has a screw hole, which is threadedly connected to the screw rod. One section of the rotating movable seat is sleeved in the through hole.

[0009] A guide mechanism is provided between the fixed base and the rotating movable base. When the screw is rotated, the guide mechanism causes the pressure plate to rotate by a set angle and move in a straight line to lock the battery box.

[0010] Furthermore, the fixing base includes a first connecting portion for connecting with a locking rod.

[0011] The guide portion is formed by the first connecting portion extending along the screw axis;

[0012] The through hole penetrates the first connecting part and the guide part, and the through hole wall is provided with rollers, which are arranged radially.

[0013] Furthermore, the rotating movable seat includes a shaft portion, which extends axially along the screw to form a second connecting portion, which is used to connect with the pressure plate; the screw hole is provided through the shaft portion and the second connecting portion.

[0014] Furthermore, the shaft is fitted into the through hole of the fixed seat, and the guide mechanism is located between the shaft and the through hole.

[0015] Furthermore, the guiding mechanism includes a guide groove provided on the surface of the shaft, and rollers are disposed in the guide groove.

[0016] Furthermore, the guide groove on the surface of the shaft portion of the guide mechanism includes a helical portion, one end of which is connected to a straight portion, and the straight portion is parallel to the axis of the shaft portion.

[0017] Furthermore, a distance adjustment pad is connected between the positioning rod and the locking rod, and the distance adjustment pad is used to adjust the distance between the positioning rod and the locking rod.

[0018] Furthermore, the screw end is provided with an internal hexagon countersunk hole, which passes through the locking rod and protrudes outward from the locking rod.

[0019] Furthermore, the pressure plate is provided with several rubber pads for cushioning.

[0020] Furthermore, the locking rod and the positioning rod are respectively connected to the bearing housing, the bearing housing is connected to the bearing, and both ends of the screw are respectively connected to the bearing.

[0021] The beneficial effects of this utility model are as follows:

[0022] 1. The internal hexagon countersunk hole connects to the motor or can be manually rotated to facilitate control of the screw rotation. When the screw is rotated in the forward direction along the screw thread, the roller is located at the top of the spiral part of the guide groove. The rotation of the screw causes the screw to move towards the rotating moving seat. Since the fixed seat is fixedly connected to the locking rod through the first connecting part, the fixed seat remains stationary during the screw rotation. Therefore, as the screw rotates, the roller in the through hole of the fixed seat rolls in the spiral part of the guide groove on the surface of the rotating moving seat, causing the rotating moving seat to rotate according to the set angle of the guide mechanism. Since the rotating moving seat is fixedly connected to the pressure plate, the pressure plate rotates with the rotating moving seat and gradually changes from a horizontal state to a vertical state. When the roller reaches the straight part of the guide groove, since the groove of the straight part is along the axial direction, the roller is subjected to resistance perpendicular to the axial direction. The rotating moving seat no longer rotates, but moves in a straight line along the straight part. When the roller reaches the bottom of the straight part, the locking action is completed. At this time, the pressure plate is in a vertical and pressed state.

[0023] When the screw is rotated in the opposite direction of the screw thread, the roller is located at the bottom of the straight section of the guide groove. The rotation of the screw causes it to move away from the rotating moving seat. As the screw rotates, the roller in the through hole of the fixed seat rolls in the straight section of the guide groove on the surface of the rotating moving seat, causing the rotating moving seat to move linearly along the straight section. Since the pressure plate is fixedly connected to the rotating moving seat, the pressure plate moves linearly with the rotating moving seat. At this time, the pressure plate is vertical and gradually retracts. When the roller reaches the spiral section of the guide groove, the screw is rotated to drive the roller to roll in the spiral section, and the rotating moving seat rotates according to the set angle of the guide mechanism. Since the rotating moving seat is fixedly connected to the pressure plate, the clamping plate follows the rotation of the rotating moving seat and gradually changes from a vertical state to a horizontal state and retracts. The above process can facilitate the battery box extraction and insertion battery swapping operation.

[0024] 2. A through hole is provided in the fixed seat. This allows the screw to pass through the fixed seat and connect with the locking rod, and also allows it to form a locking structure with the shaft on the rotating moving seat. A first connecting part on the fixed seat connects to the locking rod, ensuring that the fixed seat remains stationary during screw rotation. This allows the rotating moving seat, which engages with the fixed seat, to rotate and displace according to the guide mechanism. Rollers are radially arranged on the wall of the through hole, facilitating the formation of a guide mechanism with the guide groove of the rotating moving seat. This allows the fixed seat to roll and engage with the rotating moving seat, achieving the rotation and linear motion of the pressure plate. Furthermore, the contact between the rollers and the guide groove is rolling friction. Compared to sliding friction, rolling friction has a lower coefficient, significantly reducing friction and making the screw rotation smoother while reducing wear.

[0025] 3. A shaft is provided on the rotating movable seat, which allows the rotating movable seat to be easily fitted into the through hole of the fixed seat, forming a locking structure with the through hole in the fixed seat; a second connecting part is provided, which can connect the rotating movable seat to the pressure plate, so as to realize the synchronous movement of the pressure plate and the rotating movable seat; a threaded hole is provided in the shaft, and the threaded hole is provided through the shaft and the second connecting part, so as to realize the threaded connection between the screw and the rotating movable seat. When the screw is rotated, the screw can be displaced along the axis of the rotating movable seat.

[0026] 4. The shaft is fitted into the through hole of the fixed seat, so that the fixed seat and the rotating moving seat form a locking structure. The guide mechanism is located between the shaft and the through hole. As the fixed seat and the rotating moving seat lock or unlock, the rotation angle and linear displacement set in the guide mechanism are completed, thereby locking or unlocking the battery box.

[0027] 5. A guide groove is provided on the surface of the shaft, and the roller is inserted into the guide groove to form a guide mechanism. This allows the roller to move along a predetermined trajectory within the guide groove. Since the fixed seat where the roller is located is connected to the locking rod and remains stationary, as the screw rotates and the roller guide groove rolls, the rotating moving seat where the guide groove is located moves along the trajectory of the guide groove. This enables the rotating moving seat and the pressure plate fixedly connected to the rotating moving seat to rotate and move linearly. The rolling contact provides a more stable guide, which ensures that the rotating moving seat rotates and moves linearly along the predetermined path, improving the accuracy and repeatability of the movement.

[0028] 6. The guide groove includes a helical section and a straight section. A predetermined rotation angle can be set in the helical section, and a predetermined linear movement distance can be set in the straight section. This controls the roller to rotate and roll in the guide groove according to the angle set by the helical section, and controls the roller to roll in the straight section according to the linear movement distance set by the straight section. This, in turn, affects the rotation and linear movement of the rotating moving seat and the pressure plate fixedly connected to the rotating moving seat. The straight section is parallel to the axis of the shaft, which ensures that the movement of the roller in the straight section is along the axis of the shaft.

[0029] 7. An adjusting shim is installed between the locking rod and the positioning rod to prevent the roller from dislodging from the guide groove and damaging the device if the screw is continued to be rotated when the roller reaches the top of the spiral part of the guide groove. The adjusting shim controls the distance between the locking rod and the positioning rod.

[0030] 8. A countersunk hexagonal socket is provided at the end of the screw, which facilitates rotation by manual rotation or by a power source such as a motor. The design of the countersunk hexagonal socket ensures that the head of the bolt or screw can be safely embedded in the component, reducing stress concentration, providing better torque transmission, and facilitating assembly and maintenance. In addition, the countersunk hexagonal socket passes through the locking rod and protrudes on the outside of the locking rod, making it convenient to operate the countersunk hexagonal socket on the side of the locking rod.

[0031] 9. Rubber pads are installed on the clamping plates to prevent the pressure plates from pressing directly on the battery, reducing damage to the battery from vibration and impact. In addition, the rubber pads increase friction, preventing battery displacement and ensuring its stability in dynamic environments, while also being corrosion-resistant and extending service life.

[0032] 10. The bearing housing allows for easy fixing of the bearing assembly to the locking rod. The bearing is connected within the bearing housing to form a bearing assembly. The bearing supports the screw's rotating shaft and ensures its free rotation with minimal friction. This ensures that the rotating components connected to the screw, such as the pressure plate and rotating moving seat, can rotate smoothly, reducing friction and wear, bearing radial and axial loads, and providing precise axial and radial positioning. This allows the entire mechanical structure to maintain an efficient, stable, and reliable working state during operation. Attached Figure Description

[0033] Figure 1 Exploded view of the novel corner locking mechanism assembly;

[0034] Figure 2 This is a schematic diagram of the fixing base of this utility model;

[0035] Figure 3 This is a schematic diagram of the rotating movable seat of this utility model;

[0036] Figure 4 This is a partial enlarged view of the guide groove of the rotating moving seat of this utility model;

[0037] Figure 5 This is a schematic diagram of the pressure plate of this utility model;

[0038] Figure 6 This is an isometric view of the corner locking mechanism of this utility model in the locked state;

[0039] Figure 7 Isometric view of the unlocked state of the corner locking mechanism;

[0040] Wherein: 1—locking rod; 11—locking rod mounting hole; 12—protruding hole; 2—bearing seat; 21—bearing seat mounting hole; 3—bearing; 4—fixed seat; 41—first connecting part; 42—through hole; 43—roller; 44—guide part; 5—screw; 51—internal hexagon countersunk hole; 6—rotary moving seat; 61—shaft part; 62—guide groove; 621—spiral part; 622—straight part; 63—screw hole; 64—second connecting part; 7—pressure plate; 71—pressure plate mounting hole; 72—pressure plate center hole; 73—rubber pad; 8—adjusting pad; 81—adjusting pad mounting hole; 9—positioning rod; 91—positioning rod mounting hole. Detailed Implementation

[0041] The embodiments of this utility model are described in detail below, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary. The drawings are not drawn to scale and are intended to explain this utility model, and should not be construed as limiting this utility model.

[0042] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0044] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0045] This utility model relates to a corner locking mechanism for a quick-change battery box in a new energy electric vehicle. It is used for locking or unlocking the quick-change battery box in a new energy electric vehicle. Cornering and linear movement can be achieved by rotating the hexagonal countersunk hole 51 at the end of the screw 5, thus locking or unlocking. The hexagonal countersunk hole 51 facilitates connection to the motor and manual operation of rotating the screw 5. When the roller 43 is located at the helical part 621 of the guide groove 62, the rotation of the screw 5 drives the rotating moving seat 6 and the pressure plate 7 to rotate by a set angle, so that the pressure plate 7 is in a vertical position. When the roller 43 is located in the straight section 622 of the guide groove 62, the roller 43 is subject to the limiting resistance of the straight section 622 perpendicular to the axis. Therefore, the roller 43 moves linearly along the straight section 622. At this time, the pressure plate 7 is in a vertical state and is constantly pressing or retracting. This utility model utilizes the rotation of the screw 5 in the rotating moving seat 6 to make the roller 43 move in the spiral section 621 and the straight section 622 of the guide groove 62, thereby causing the pressure plate 7 to complete two processes: vertical-pressing and horizontal-retracting, which facilitates the battery box extraction and insertion for battery swapping. The locking rod 1 and the positioning rod 9 are fixed at a distance by setting an adjusting pad 8, which can maintain the stable engagement of the roller in the guide groove 62 and prevent it from falling off. This solves the problems of inflexible limiting methods and insufficient locking reliability or structural complexity of pressing methods during the battery box swapping process of new energy electric vehicles.

[0046] A corner locking mechanism for a quick-change battery box in a new energy electric vehicle, specifically, as follows: Figure 1-7 As shown, it includes: positioning rod 9 and locking rod 1;

[0047] A screw rod 5 supports the connection between the positioning rod 9 and the locking rod 1.

[0048] The fixing seat 4 is fixedly connected to the locking rod 1, and the fixing seat 4 has a through hole 42;

[0049] The rotating movable seat 6 is fixedly connected to the pressure plate 7. The rotating movable seat 6 is provided with a screw hole 63, which is threadedly connected to the screw rod 5. One section of the rotating movable seat 6 is sleeved in the through hole 42.

[0050] A guide mechanism is provided between the fixed base 4 and the rotating movable base 6. When the screw 5 is rotated, the guide mechanism causes the pressure plate 7 to rotate by a set angle and move in a straight line to lock the battery box.

[0051] In use, when the screw 5 is rotated, the positioning rod 9 and the locking rod 1 remain unchanged. As the screw 5 rotates, the screw 5 is connected to the rotating moving seat 6 by a threaded engagement. The screw 5 will rotate in the predetermined thread direction and move axially towards or away from the rotating moving seat 6. The fixed seat 4 and the rotating moving seat 6 gradually fit together or move away from each other. Through the guide mechanism, the rotating moving seat 6 rotates and moves linearly according to the set angle, and drives the pressure plate 7 fixedly connected to it to rotate and move linearly according to the set angle, thereby locking or unlocking the battery box.

[0052] In one embodiment, such as Figure 1 , Figure 2 As shown, the fixing base 4 includes a first connecting part 41, which is used to connect with the locking rod 1.

[0053] Guide portion 44, the first connecting portion 41 extends along the axial direction of the screw 5 to form the guide portion 44;

[0054] The through hole 42 penetrates the first connecting part 41 and the guide part 44, and the wall of the through hole 42 is provided with rollers 43, which are arranged radially.

[0055] The locking rod 1 has a locking rod mounting hole 11, which can be threadedly connected to the first connecting part 41 on the fixed seat 4 by bolts, thereby realizing the fixed connection between the locking rod 1 and the fixed seat 4. The fixed seat 4 has a through hole 42, which facilitates the screw 5 to pass through the fixed seat 4, and can form a locking structure with the rotating moving seat 6 to facilitate the formation of a guide mechanism. The inner wall of the through hole 42 is provided with rollers 43, which can easily form a guide mechanism with the guide groove 62 of the rotating moving seat 6, so as to realize the rolling guide locking of the fixed seat 4 on the rotating moving seat 6, thereby realizing the rotation and linear movement of the pressure plate 7. In addition, the contact between the rollers 43 and the guide groove 62 is rolling friction, which can significantly reduce friction compared to sliding friction, making the rotation of the screw 5 smoother.

[0056] In one embodiment, such as Figure 1 , Figure 3 As shown, the rotating movable seat 6 includes a shaft portion 61, which extends axially along the screw 5 to form a second connecting portion 64. The second connecting portion 64 is used to connect with the pressure plate 7. A screw hole 63 is provided through the shaft portion 61 and the second connecting portion 64. The pressure plate 7 can be provided with a pressure plate mounting hole 71, and the rotating movable seat 6 and the second connecting portion 64 are threadedly connected by bolts to achieve a fixed connection between the rotating movable seat 6 and the pressure plate 7. The rotating movable seat 6 is provided with a shaft portion 61, which can be easily fitted into the through hole 42 of the fixed seat 4 to achieve the engagement between the rotating movable seat 6 and the fixed seat 4. The shaft portion 61 is provided with a screw hole 63, which is provided through the shaft portion 61 and the second connecting portion 64 to achieve a threaded connection between the screw 5 and the rotating movable seat 6. When the screw 5 is rotated, the screw 5 can be displaced along the axis of the rotating movable seat 6.

[0057] In one embodiment, such as Figure 1 , Figure 6 , Figure 7 As shown, the shaft portion 61 is sleeved in the through hole 42 of the fixed base 4, and the guide mechanism is located between the shaft portion 61 and the through hole 42. The shaft portion 61 is sleeved in the through hole 42 of the fixed base 4, so that the fixed base 4 and the rotating movable base 6 form a locking structure. The guide mechanism is located between the shaft portion 61 and the through hole 42, and can complete the rotation angle and linear displacement set in the guide mechanism as the fixed base 4 and the rotating movable base 6 are locked or unlocked, thereby achieving the locking or unlocking of the battery box.

[0058] In one embodiment, such as Figure 1 , Figure 2 , Figure 7 The guide mechanism shown includes a guide groove 62 provided on the surface of the shaft portion 61, and a roller 43 disposed within the guide groove 62. The guide groove 62 is provided on the surface of the shaft portion 61, and the roller 43, located on the wall of the through hole 42 in the fixed seat 4, is engaged into the guide groove 62. As the fixed seat 4 engages or disengages with the rotating movable seat 6, the roller 43 rolls within the preset trajectory of the guide groove 62, thereby enabling rotation and linear movement of the rotating movable seat 6 and the pressure plate 7 fixedly connected to the rotating movable seat 6.

[0059] In one embodiment, such as Figure 1 , Figure 3 , Figure 7As shown, the guide groove 62 on the surface of the shaft portion 61 in the guide mechanism includes a helical portion 621, one end of which is connected to a straight portion 622. The straight portion 622 is parallel to the axis of the shaft portion 61. The helical portion 621 and the straight portion 622 are arranged within the guide groove 62. The roller 43 is engaged in the guide groove 62, allowing the roller 43 to rotate and roll within the guide groove 62 at an angle set by the helical portion 621. Within the straight portion 622, the roller rolls along a linear distance set by the straight portion 622, thereby affecting the rotation and linear movement of the rotating moving seat 6 and the pressure plate 7 fixedly connected to the rotating moving seat 6.

[0060] Taking the spiral section 621 with a set angle of 90 degrees as an example:

[0061] When the screw 5 is rotated in the forward direction, the screw 5 can move towards the rotating moving seat 6 along the axis of the rotating moving seat 6. Since the roller 43 is located in the helical part 621 in the guide groove 62 and the fixed seat 4 is fixedly connected to the locking rod 1, the roller 43 rolls along the helical part 621 as the screw 5 rotates, and drives the rotating moving seat 6 to rotate 90 degrees along the helical part 621. After the roller 43 reaches the straight part 622, since the groove of the straight part 622 is a groove along the axial direction, the roller 43 is subjected to resistance perpendicular to the axial direction, and the rotating moving seat 6 stops rotating. As the screw 5 is rotated in the forward direction, the screw 5 continues to move towards the rotating moving seat 6, and the roller 43 rolls towards the rotating moving seat 6 along the groove of the straight part 622. The rotating moving seat 6 performs linear motion until the shaft part 61 of the rotating moving seat 6 is completely inserted into the through hole 42 of the fixed seat 4, thereby locking the mechanism.

[0062] When the screw 5 is rotated in the reverse direction, the screw 5 can be displaced away from the rotating moving seat 6 along the axis of the rotating moving seat 6. At this time, the roller 43 is located in the straight part 622 of the guide groove 62. Due to the resistance of the straight part 622 perpendicular to the axis, as the screw 5 continues to move away from the rotating moving seat 6, the roller 43 rolls in a straight line along the groove of the straight part 622 away from the rotating moving seat 6. The rotating moving seat 6 moves in a straight line. After the roller 43 reaches the helical part 621, as the screw 5 continues to move away from the rotating moving seat 6, the rotating moving seat 6 rotates 90 degrees along the helical part 621 until it reaches the limit distance of the adjusting pad 8. The screw 5 can no longer rotate, and the shaft part 61 of the rotating moving seat 6 moves away from the through hole 42 of the fixed seat 4, releasing the locking state and unlocking the mechanism.

[0063] In one embodiment, such as Figure 1 , Figure 6 , Figure 7As shown, a distance adjusting pad 8 is connected between the positioning rod 9 and the locking rod 1. The distance adjusting pad 8 is used to adjust the distance between the positioning rod 9 and the locking rod 1. The adjusting pad 8 between the locking rod 1 and the positioning rod 9 ensures that the distance between them is fixed, preventing the roller 43 from disengaging from the guide groove 62 when it rolls to the top of the spiral portion 621 of the guide groove 62, thus preventing damage to the device. The adjusting pad 8 can be provided with an adjusting pad mounting hole 81 for easy threaded connection with the locking rod 1 and the positioning rod 9.

[0064] In one embodiment, such as Figure 1 , Figure 6 , Figure 7 As shown, the end of the screw 5 is provided with a countersunk hexagonal socket 51, which passes through the locking rod 1 and protrudes outward from the locking rod 1. The countersunk hexagonal socket 51 facilitates rotation of the screw 5 by manual rotation or by a power source such as a motor. The design of the countersunk hexagonal socket 51 ensures that the head of the bolt or screw can be safely embedded inside the component, reducing stress concentration, providing better torque transmission, and facilitating assembly and maintenance. Passing the countersunk hexagonal socket 51 through the locking rod 1 and protruding outward from the locking rod 1 allows the user to easily rotate the screw 5 from the locking rod 1 side. A protruding hole 12 can be provided on the outer side of the locking rod 1 to facilitate the screw 5 protruding outward from the outer surface of the locking rod 1.

[0065] In one embodiment, such as Figure 1 , Figure 5 , Figure 6 , Figure 7 As shown, the pressure plate 7 is provided with several rubber pads 73 for cushioning. The rubber pads 73 can also be other cushioning pads. The main function of the rubber pads 73 is to provide cushioning and protection, preventing the pressure plate 7 from directly pressing on the battery and reducing damage to the battery from vibration and impact. It evenly distributes pressure, avoiding excessive localized force that could cause battery deformation or damage, and also has a certain sound insulation effect, reducing mechanical noise. In addition, the rubber pads 73 can increase friction, preventing battery displacement and ensuring its stability in dynamic environments, while also possessing corrosion resistance, extending service life.

[0066] In one embodiment, such as Figure 1 As shown, the locking rod 1 and the positioning rod 9 are respectively connected to the bearing seat 2, the bearing seat 2 is connected to the bearing 3, and the two ends of the screw 5 are respectively connected to the bearing 3.

[0067] The pressure plate 7 is also provided with a middle hole 72, which facilitates the screw 5 to pass through the pressure plate 7 and rotate to connect with the bearing 3; the bearing seat 2 can be provided with a bearing seat mounting hole 21, the locking rod 1 can be provided with a locking rod mounting hole 11, and the positioning rod 9 can be provided with a positioning rod mounting hole 91. The bearing seat 2 can be threadedly connected to the locking rod 1 and the positioning rod 9 using bolts.

[0068] Both ends of the screw 5 are rotatably connected to the bearings 3. The bearings 3 can support the rotating shaft of the screw 5 and ensure that it rotates freely with minimal friction. This ensures that the rotating components pressure plate 7 and rotating moving seat 6 connected to the screw 5 can rotate smoothly, reducing friction and wear, bearing radial and axial loads, and providing precise axial and radial positioning. This allows the entire mechanical structure to maintain an efficient, stable, and reliable working state during operation.

[0069] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A corner locking mechanism for a quick-change battery box in a new energy electric vehicle, characterized in that, include: Positioning rod (9) and locking rod (1); A screw rod (5) is used to support the positioning rod (9) and the locking rod (1); The fixed base (4) is fixedly connected to the locking rod (1), and the fixed base (4) has a through hole (42); The rotating movable seat (6) is fixedly connected to the pressure plate (7). The rotating movable seat (6) is provided with a screw hole (63), which is threadedly connected to the screw rod (5). One part of the rotating movable seat (6) is sleeved in the through hole (42). A guide mechanism is provided between the fixed seat (4) and the rotating moving seat (6). When the screw (5) is rotated, the guide mechanism causes the pressure plate (7) to rotate by a set angle and move in a straight line to lock the battery box.

2. The corner locking mechanism for the quick-change battery box of a new energy electric vehicle according to claim 1, characterized in that, The fixing base (4) includes a first connecting part (41), which is used to connect with the locking rod (1); The guide portion (44) is formed by the first connecting portion (41) extending axially along the screw (5); The through hole (42) passes through the first connecting part (41) and the guide part (44), and the wall of the through hole (42) is provided with rollers (43), which are arranged radially.

3. The corner locking mechanism for the quick-change battery box of a new energy electric vehicle according to claim 1, characterized in that, The rotating moving seat (6) includes a shaft (61), which extends axially along the screw (5) to form a second connecting part (64), which is used to connect with the pressure plate (7); the screw hole (63) is provided through the shaft (61) and the second connecting part (64).

4. The corner locking mechanism for the quick-change battery box of a new energy electric vehicle according to claim 2 or 3, characterized in that, The shaft (61) is fitted into the through hole (42) of the fixed seat (4), and the guide mechanism is located between the shaft (61) and the through hole (42).

5. The corner locking mechanism for the quick-change battery box of a new energy electric vehicle according to claim 4, characterized in that, The guiding mechanism includes a guide groove (62) provided on the surface of the shaft (61), and rollers (43) are provided in the guide groove (62).

6. The corner locking mechanism for the quick-change battery box of a new energy electric vehicle according to claim 1 or 5, characterized in that, The guide groove (62) on the surface of the central shaft (61) of the guide mechanism includes a spiral part (621), one end of which is connected to a straight part (622), and the straight part (622) is parallel to the axis of the central shaft (61).

7. The corner locking mechanism for the quick-change battery box of a new energy electric vehicle according to claim 1, characterized in that, A distance adjustment pad (8) is connected between the positioning rod (9) and the locking rod (1). The distance adjustment pad (8) is used to adjust the distance between the positioning rod (9) and the locking rod (1).

8. The corner locking mechanism for the quick-change battery box of a new energy electric vehicle according to any one of claims 1-3, characterized in that, The screw (5) has an internal hexagonal countersunk hole (51) at its end. The internal hexagonal countersunk hole (51) at the end of the screw (5) passes through the locking rod (1) and protrudes to the outside of the locking rod (1).

9. The corner locking mechanism for the quick-change battery box of a new energy electric vehicle according to claim 1, characterized in that, The pressure plate (7) is provided with several rubber pads (73) for cushioning.

10. The corner locking mechanism for the quick-change battery box of a new energy electric vehicle according to claim 1, characterized in that, The locking rod (1) and the positioning rod (9) are respectively connected to the bearing seat (2), the bearing seat (2) is connected to the bearing (3), and the two ends of the screw (5) are respectively connected to the bearing (3).

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