Safety mechanism of automobile lifting device and battery dismounting platform

Abstract

The present application relates to the technical field of automobile lifting equipment, and particularly relates to a safety mechanism of automobile lifting equipment and a storage battery dismounting platform. The safety mechanism comprises a swing plate, a connecting plate, a safety block assembly and a plurality of safety supporting blocks. The plurality of safety supporting blocks are arranged along the front-rear direction on a base. The swing plate is swing-connected to the base by means of the connecting plate, and the swing plate has a falling position and a lifting position on the base. The safety block assembly is rotationally connected to the lower rear sliding part of a scissor mechanism, and the safety block assembly can be flipped up and down. Under the action of gravity, the safety block assembly tends to flip down, and the safety block assembly is in transmission connection with the swing plate and can be flipped up by the swing plate. When the safety block assembly flips down and its abutting end abuts against the safety supporting blocks from front to back, the safety mechanism is locked. When the swing plate is in the lifting position, the swing plate flips up the safety block assembly, and the safety mechanism is unlocked. The present application can solve the problem that the unlocking elements of the pneumatic or electric type are prone to failure.

Description

Technical Field

[0001] This invention relates to the field of automobile lifting equipment technology, and in particular to a safety mechanism for automobile lifting equipment and a battery removal and installation platform. Background Technology

[0002] Car lifts are widely used in the automotive repair industry. Because the cars lifted by these lifts are quite heavy, and the purpose of lifting is to allow workers to access the area underneath the car for work, the lifts need to be equipped with safety mechanisms to prevent accidental descent after lifting.

[0003] Current safety mechanisms typically include multiple safety support blocks arranged on the base and a safety stop assembly mounted on the scissor lift mechanism. When the scissor lift mechanism rises, the safety stop assembly automatically engages different safety support blocks, which in turn hold the safety stop assembly in place, preventing the scissor lift mechanism from descending. When the scissor lift mechanism needs to descend, the safety stop assembly must first be lifted to disengage from the safety support blocks before the scissor lift mechanism can descend.

[0004] In existing technologies, pneumatic or electric unlocking elements are typically connected to the safety stop assembly. These elements push the safety stop assembly away from the safety support block, thus unlocking it. However, in practice, it has been found that pneumatic or electric unlocking elements are prone to failure, leading to accidental unlocking or inability to unlock. Furthermore, wiring needs to be installed within the vehicle lifting equipment to control these pneumatic or electric unlocking elements, which not only increases manufacturing costs but also makes these wiring susceptible to accidental pulling, potentially damaging the safety mechanism.

[0005] Therefore, it is necessary to make improvements to address the problems existing in the current technology. Summary of the Invention

[0006] The purpose of this invention is to provide a safety mechanism for a car lifting device and a battery removal and installation platform, which aims to solve the problem that pneumatic or electric unlocking components in the prior art are prone to failure, resulting in accidental unlocking or inability to unlock.

[0007] To achieve the above objectives, the present invention provides a safety mechanism for a car lifting device. The car lifting device includes a base and a scissor mechanism disposed on the base. The lower front hinge portion of the scissor mechanism is hinged to the base, and the lower rear sliding portion of the scissor mechanism is slidably connected to the base in a front-rear direction. The safety mechanism includes a swing plate, a connecting plate, a safety stop assembly, and multiple safety support blocks. The multiple safety support blocks are arranged in a front-rear direction on the base, and there are locking gaps between adjacent safety support blocks. The swing plate is oscillatingly connected to the base via the connecting plate. The swing plate has a relatively forward and low lowering position and a relatively rearward and high lifting position on the base. The swing plate can swing forward to reach the lowering position. In the lower position, the swing plate can swing backward to reach the upper position; the safety stop assembly is rotatably connected to the lower rear sliding part of the scissor mechanism. The safety stop assembly can flip up and down. Under the action of gravity, the safety stop assembly tends to flip down. The safety stop assembly is connected to the swing plate and can be driven by the swing plate to flip up. The suspended end of the safety stop assembly is the abutment top. When the swing plate is in the lower position, the safety stop assembly can freely flip up and down. When the safety stop assembly flips down and its abutment top abuts against the safety support block from front to back, the safety mechanism locks. When the swing plate is in the upper position, the swing plate causes the safety stop assembly to flip up, and the abutment top moves away from the safety support block, and the safety mechanism unlocks.

[0008] Furthermore, the safety mechanism also includes a lifting rod, which includes a horizontal bar and a lower extension bar extending downward from one end of the horizontal bar. The lower extension bar is connected to the safety stop assembly, and the horizontal bar is supported by the support surface of the swing plate. The swing plate flips the safety stop assembly upward by means of the lifting rod.

[0009] Furthermore, the safety stop assembly includes a stop block. The lower rear sliding part of the scissor mechanism is provided with a circular tube, and stop blocks are provided at both ends of the circular tube. The stop blocks are rotatably connected to the circular tube by means of a sleeve. A long strip plate is connected between the two stop blocks to make the two stop blocks flip synchronously. The long strip plate is connected to the lifting rod. Multiple safety support blocks are symmetrically arranged on the left and right sides of the base. The stop blocks at the left and right ends of the circular tube cooperate with the safety support blocks on the left and right sides of the base, respectively.

[0010] Furthermore, a reset block is fixedly installed on the support surface of the swing plate. During the process of the scissor mechanism rising from the low position to the high position, the lifting rod slides forward along the support surface of the swing plate. After the lifting rod contacts the reset block, the lifting rod pushes the reset block and the swing plate forward together until the swing plate reaches the lower position. The position of the reset block in the front-back direction is configured such that during the process of the scissor mechanism rising from the low position to the high position, the lifting rod contacts the reset block first and pushes the swing plate to the lower position, and then the safety stop assembly contacts the safety support block. After the lifting rod pushes the swing plate to the lower position, the last safety support block contacts the safety stop assembly and flips the safety stop assembly upward, and the lifting rod is lifted and leaves the reset block.

[0011] Furthermore, the front end face of the reset block has a chamfered transition structure, the rear end face of the reset block has a vertical angle structure, and the horizontal rod of the lifting rod is cylindrical.

[0012] Furthermore, the safety mechanism includes two connecting plates, each hinged at both ends to the base and the swing plate, respectively. The base, the swing plate, and the two connecting plates form a parallelogram structure. The point where the connecting plate is hinged to the base is taken as the vertex, and the horizontal line from the vertex to the front is taken as the reference line. When the swing plate is in the falling position, the angle ∠1 between the connecting plate and the reference line is less than 90°. During the process of the swing plate changing from the falling position to the lifting position, the angle between the connecting plate and the reference line continuously increases. When the swing plate is in the lifting position, the angle ∠2 between the connecting plate and the reference line is greater than 90°.

[0013] Furthermore, the base is equipped with a limit block. When the swing plate swings to the upward position, the swing plate abuts against the limit block, and the swing plate cannot continue to swing backward.

[0014] Furthermore, the swing plate includes a horizontally extending support plate and a lower extension plate extending downward from one side of the support plate. The connecting plate is hinged to the lower extension plate. The top surface of the support plate forms the support surface of the swing plate. The support plate can rest on the base. When the swing plate swings to the lower position, the support plate rests on the base, and the swing plate cannot continue to swing forward.

[0015] Furthermore, a foot-operated force plate is connected to the outer side of the lower extension plate.

[0016] This invention also provides a battery installation / removal platform, including a base, a support platform, and a scissor mechanism disposed between the base and the support platform. The lower front hinge of the scissor mechanism is hinged to the base, the lower rear sliding part of the scissor mechanism is slidably connected to the base in the front-rear direction, the upper front hinge of the scissor mechanism is hinged to the support platform, and the upper rear sliding part of the scissor mechanism is slidably connected to the support platform in the front-rear direction. A hydraulic cylinder assembly is disposed within the scissor mechanism, and the hydraulic cylinder assembly is connected to a hydraulic station, which is disposed on the base. The aforementioned safety mechanism is disposed between the scissor mechanism and the base. The base is a handcart. The support platform includes a base plate, a sliding table, and a rotating table. The base plate is connected to the scissor mechanism. The base plate is provided with a ball bearing assembly, and the sliding table is slidably connected to the base plate by means of the ball bearing assembly. A locking weight for locking the sliding table is disposed between the sliding table and the base plate. The sliding table is provided with multiple sets of adjusting nut assemblies, and the rotating table is angularly adjustable and connected to the sliding table by means of the adjusting nut assemblies. The rotating table is provided with multiple sets of support pad assemblies, and the position of each support pad assembly is adjustable and mounted on the rotating table.

[0017] The safety mechanism of the car lifting device provided by this invention, compared with the prior art, achieves locking and unlocking of the safety mechanism through a purely mechanical structure. The purely mechanical linkage method fundamentally avoids the problem of easy failure of pneumatic or electric unlocking components in the prior art, making it extremely reliable and stable. Since these purely mechanical structures do not require pipeline configuration, there is no problem of pipeline leakage. Since no control components are required for the safety mechanism, manufacturing costs can be significantly reduced. In use, the operator can directly operate the swing plate to achieve locking and unlocking actions. The operation is simple and direct, and the usage logic is clear. The operator can understand the operating rules without extensive training, making it easy to learn and use, and it is more in line with the usage needs of actual maintenance scenarios. Attached Figure Description

[0018] Figure 1 This is the three-dimensional structure of the safety mechanism of the present invention when it is in the locked state. Figure 1 ;

[0019] Figure 2 This is a three-dimensional structural diagram of the security mechanism of the present invention in the unlocked state;

[0020] Figure 3 This is the three-dimensional structure of the safety mechanism of the present invention when it is in the locked state. Figure 2 ;

[0021] Figure 4 This is an exploded structural diagram of the safety mechanism of the present invention;

[0022] Figure 5 This is a schematic diagram showing the connection relationship of some components of the safety mechanism of the present invention when it is in the locked state;

[0023] Figure 6 This is a schematic diagram showing the connection relationship of some components when the security mechanism of the present invention is in the unlocked state;

[0024] Figure 7 This is a schematic diagram of the working principle of the reset block. Figure 1 ;

[0025] Figure 8 This is a schematic diagram of the working principle of the reset block. Figure 2 ;

[0026] Figure 9 This is a schematic diagram of the connecting plate's state when the swing plate is in the falling position;

[0027] Figure 10 This is a schematic diagram of the connecting plate's state when the swing plate is in the raised position;

[0028] Figure 11 This is a three-dimensional structural diagram of the battery disassembly and assembly platform of the present invention;

[0029] Figure 12 This is an exploded structural diagram of the battery disassembly and assembly platform of the present invention.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Base; 11. Safety support block; 12. Limiting block;

[0032] 2. Scissor mechanism; 21. Lower front hinge; 22. Lower rear sliding part; 221. Round tube; 23. Upper front hinge; 24. Upper rear sliding part;

[0033] 3. Swing plate; 31. Reset block; 311. Chamfered transition structure; 312. Vertical angle structure; 32. Support plate; 33. Lower extension plate; 34. Foot-operated force plate;

[0034] 4. Connecting plate; 41. Vertex; 42. Baseline;

[0035] 5. Safety stop assembly; 51. Stop block; 52. Sleeve; 53. Strip plate;

[0036] 6. Lifting rod; 61. Horizontal bar; 62. Lower extension bar;

[0037] 71. Hydraulic cylinder assembly; 72. Hydraulic power unit;

[0038] 8. Support platform; 81. Base; 811. Ball bearing assembly; 812. Pressure plate; 82. Sliding table; 821. Adjusting nut assembly; 83. Rotary table; 831. Support pad assembly. Detailed Implementation

[0039] The embodiments of the present invention will be described in detail below.

[0040] In this embodiment, unless otherwise explicitly specified and limited, when terms such as "set in," "connected," or "linked" appear, these terms should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or a connection through one or more intermediate media. Those skilled in the art can understand the specific meaning of the above terms in this embodiment according to the specific circumstances.

[0041] The directional terms used in this embodiment are for the purpose of better explaining the characteristics of the features and the relationships between the features. It should be understood that when the placement direction of this embodiment changes, the direction of the characteristics of the features and the relationships between the features also changes accordingly. Therefore, the directional terms do not constitute an absolute limitation on the characteristics of the features and the relationships between the features in space, but only play a relative limiting role.

[0042] This embodiment provides a safety mechanism for a car lifting device, such as... Figures 1 to 10 As shown.

[0043] The car lifting device includes a base 1 and a scissor mechanism 2 disposed on the base 1. As in the prior art, the lower front hinge portion 21 of the scissor mechanism 2 is hinged to the base 1, and the lower rear sliding portion 22 of the scissor mechanism 2 is slidably connected to the base 1 in the front-rear direction. When the scissor mechanism 2 drives the lifting operation, the lower front hinge portion 21 rotates relative to the base 1, while the lower rear sliding portion 22 slides back and forth relative to the base 1. Specifically, when the scissor mechanism 2 drives the support platform 8 (described below) to rise, the lower rear sliding portion 22 slides forward; when the scissor mechanism 2 drives the support platform 8 to descend, the lower rear sliding portion 22 slides backward.

[0044] The safety mechanism includes a swing plate 3, a connecting plate 4, a safety stop assembly 5, and multiple safety support blocks 11. The multiple safety support blocks 11 are arranged along the front-to-back direction on the base 1, with locking gaps between adjacent safety support blocks 11. When the abutment of the safety stop assembly 5 falls into the locking gap, the abutment is blocked from moving backward (but can move forward), thus preventing the scissor mechanism 2 from descending. Those skilled in the art will readily recognize that the arrangement of the multiple safety support blocks 11 is only one form; in addition, structures such as racks can be used to achieve the same function as the multiple safety support blocks 11, and similar substitutions should also fall within the scope of protection of this invention.

[0045] The swing plate 3 is oscillatingly connected to the base 1 by means of the connecting plate 4. The swing plate 3 has a relatively forward and low drop position on the base 1 (e.g., Figure 9 (as shown) and relatively late and high elevation positions (such as) Figure 10 As shown), the swing plate 3 can swing forward to reach the falling position, and swing backward to reach the lifting position.

[0046] The safety stop assembly 5 is rotatably connected to the lower rear sliding part 22 of the scissor mechanism 2. The safety stop assembly 5 can flip up and down (when the scissor mechanism 2 drives the support platform 8 to rise, and the lower rear sliding part 22 slides forward, because there are multiple safety support blocks 11 and there are locking gaps between adjacent safety support blocks 11, the safety stop assembly 5 continuously flips up and down freely, but the presence of the safety stop assembly 5 will not hinder the lower rear sliding part 22 from sliding forward). Under the action of gravity, the safety stop assembly 5 tends to flip down. The safety stop assembly 5 is connected to the swing plate 3 and can be driven to flip up by the swing plate 3. When the swing plate 3 flips the safety stop assembly 5 up, the safety stop assembly 5 will remain flipped up, and the suspended end of the safety stop assembly 5 is the top.

[0047] When the swing plate 3 is in the lowered position, the safety stop assembly 5 can freely flip up and down. This free flipping up and down refers to the continuous forward movement of the safety stop assembly 5 as the lower rear sliding part 22 slides forward. The safety stop assembly 5 will continuously flip up and down due to the multiple safety support blocks 11 and the locking gaps between them, and the swing plate 3 cannot obstruct this flipping up and down. Preferably, as described below, the above functional requirements can be achieved by connecting the safety stop assembly 5 to the lifting rod 6, and the lifting rod 6 being supported by the supporting surface of the swing plate 3. When the safety stop assembly 5 flips down and its top end abuts against the safety support block 11 from front to back, the safety mechanism is locked. In this state, the lower rear sliding part 22 cannot slide backward, but can only slide forward. When the swing plate 3 is in the raised position, the swing plate 3 causes the safety stop assembly 5 to flip up, and the top end moves away from the safety support block 11, and the safety mechanism is unlocked. In this state, the lower rear sliding part 22 can slide back and forth freely.

[0048] Based on the above structural design, the safety mechanism of this car lifting device achieves locking and unlocking through a purely mechanical structure. This purely mechanical linkage method fundamentally avoids the problem of easy failure of pneumatic or electric unlocking components in existing technologies, resulting in extremely high reliability and stability. Since these purely mechanical structures do not require pipelines, there is no issue of pipeline leakage. Because no control components are needed for the safety mechanism, manufacturing costs can be significantly reduced. In use, operators can directly operate the swing plate 3 to achieve locking and unlocking actions. The operation is simple and direct, and the usage logic is clear. Operators can understand the operating rules without extensive training, making it easy to learn and more in line with the needs of actual maintenance scenarios.

[0049] In this embodiment, as Figures 4 to 6 As shown, the safety mechanism also includes a lifting rod 6, which includes a horizontal rod 61 and a lower extension rod 62 extending downward from one end of the horizontal rod 61. The lower extension rod 62 is connected to the safety stop assembly 5, and the horizontal rod 61 is supported by the supporting surface of the swing plate 3. The swing plate 3 uses the lifting rod 6 to flip the safety stop assembly 5 upward. Using the lifting rod 6 to realize the connection between the swing plate 3 and the safety stop assembly 5 is simple in structure, low in implementation cost, and highly stable. Of course, the lifting rod 6 is only one form of realizing the transmission connection between the swing plate 3 and the safety stop assembly 5. There are many similar alternatives in the mechanical field. As long as the safety stop assembly 5 can flip upward together when the swing plate 3 is lifted, and the safety stop assembly 5 can freely flip up and down after the swing plate 3 is lowered, that is, the function is equivalent to that of this embodiment, other structures with equivalent principles also fall within the protection scope of this invention.

[0050] In this embodiment, as Figures 4 to 8As shown, the safety stop assembly 5 includes a stop block 51. A circular tube 221 is provided on the lower rear sliding part 22 of the scissor mechanism 2. Stop blocks 51 are provided at both ends of the circular tube 221. The stop blocks 51 are rotatably connected to the circular tube 221 via a sleeve 52. A long strip plate 53 connects between the two stop blocks 51 to allow the two stop blocks 51 to flip synchronously. The long strip plate 53 is connected to the lifting rod 6. Multiple safety support blocks 11 are symmetrically arranged on the left and right sides of the base 1. The stop blocks 51 at both ends of the circular tube 221 cooperate with the safety support blocks 11 on the left and right sides of the base 1, respectively. With the above structural arrangement, both sides of the scissor mechanism 2 can be locked and unlocked simultaneously, ensuring the balance of both sides of the scissor mechanism 2.

[0051] In this embodiment, as Figure 7 and Figure 8As shown, a reset block 31 is fixedly installed on the support surface of the swing plate 3. During the process of the scissor mechanism 2 rising from the low position to the high position, the lifting rod 6 slides forward along the support surface of the swing plate 3. After the lifting rod 6 contacts the reset block 31, the lifting rod 6 pushes the reset block 31 and the swing plate 3 forward together until the swing plate 3 reaches the lower position. The position of the reset block 31 in the front-back direction is configured such that during the process of the scissor mechanism 2 rising from the low position to the high position, the lifting rod 6 contacts the reset block 31 first and pushes the swing plate 3 to the lower position, and then the safety stop assembly 5 contacts the safety support block 11. After the lifting rod 6 pushes the swing plate 3 to the lower position, the last safety support block 11 contacts the safety stop assembly 5 and flips the safety stop assembly 5 upward, and the lifting rod 6 is lifted and leaves the reset block 31. In practical use, if the swing plate 3 does not return to its lowered position when the scissor lifts again from its lowest position, and the operator forgets to push the swing plate 3 back to its lowered position, there will be a safety risk after the scissor lifts. Therefore, this embodiment includes a mechanism for automatically resetting the swing plate 3. During the process of the scissor lift rising from its lowest position, the swing plate 3 is pushed back to its lowered position by the cooperation between the lifting rod 6 and the reset block 31. Of course, the operator can also manually push the swing plate 3 back to its lowered position. Furthermore, to prevent the lifting rod 6 from being unable to push the reset block 31 after being prematurely raised due to the presence of the safety stop assembly 5, the reset block 31 needs to be configured as described above in the front-rear direction. Preferably, the front end face of the reset block 31 is a chamfered transition structure 311, the rear end face of the reset block 31 is a vertical angle structure 312, and the horizontal rod 61 of the lifting rod 6 is cylindrical. Based on the above structural configuration, during the sliding motion of the lifting rod 6 from front to back, the chamfered transition structure 311 allows the lifting rod 6 to easily pass over the reset block 31. During the sliding motion of the lifting rod 6 from back to front, the vertical angle structure 312 allows the lifting rod 6 to push the reset block 31. At the same time, in order to prevent the lifting rod 6 from being stuck in the vertical angle structure 312 during its forward movement, this embodiment is configured such that after the lifting rod 6 pushes the swing plate 3 to the lower position, the safety support block 11 will contact the safety stop assembly 5 and flip the safety stop assembly 5 upward, and the lifting rod 6 will be lifted and leave the reset block 31. This configuration can ensure the normal operation of the mechanism.

[0052] In this embodiment, the safety mechanism includes two connecting plates 4, each of which is hinged at both ends to the base 1 and the swing plate 3, respectively. The base 1, the swing plate 3, and the two connecting plates 4 form a parallelogram structure. The parallelogram structure can meet the swinging requirements of the swing plate 3 and provides high stability during swinging. Figure 9 and Figure 10As shown, the point where the connecting plate 4 is hinged to the base 1 is taken as vertex 41, and the horizontal line from vertex 41 from back to front is taken as the baseline 42. When the swing plate 3 is in the falling position, the angle ∠1 between the connecting plate 4 and the baseline 42 is less than 90°. During the process of the swing plate 3 changing from the falling position to the lifting position, the angle between the connecting plate 4 and the baseline 42 continuously increases. When the swing plate 3 is in the lifting position, the angle ∠2 between the connecting plate 4 and the baseline 42 is greater than 90°. It is easy to understand that in order to achieve the requirement of a higher lifting position and a lower falling position, the angle ∠1 cannot be too large, and it is generally appropriate to be 10°~45°, while the angle ∠2 cannot be too large, and it is generally appropriate to be 95°~120°. Based on the above structural design, by setting ∠2 as an obtuse angle, it is possible to achieve the effect that when the worker pushes the swing plate 3 to the raised position, even if the pushing force is no longer continuously provided, the swing plate 3 will not automatically return to the lower position. That is, when the swing plate 3 reaches the raised position, it will remain in the raised position under the action of gravity, and the worker does not need to keep pushing the swing plate 3 and can go to perform other tasks. Preferably, the base 1 is provided with a limit block 12. When the swing plate 3 swings to the raised position, the swing plate 3 abuts against the limit block 12, and the swing plate 3 cannot continue to swing backward. Preferably, the swing plate 3 includes a horizontally extending support plate 32 and a lower extension plate 33 extending downward from one side of the support plate 32. The connecting plate 4 is hinged to the lower extension plate 33. The top surface of the support plate 32 constitutes the support surface of the swing plate 3, and the support plate 32 can rest on the base 1. When the swing plate 3 swings to the lower position, the support plate 32 rests on the base 1, and the swing plate 3 cannot continue to swing forward. In the above structure, the swing limits of the swing plate 3 to the rear and forward are limited by the limiting block 12 and the supporting plate 32, respectively, so that the swing plate 3 can only swing between the lifting position and the falling position.

[0053] In this embodiment, a foot-operated force plate 34 is connected to the outer side of the lower extension plate 33. By setting the foot-operated force plate 34, the operator can switch the state of the safety mechanism by pushing the foot-operated force plate 34 in the forward and backward directions.

[0054] In summary, the safety mechanism of this type of car lifting device can solve the problem that existing pneumatic or electric unlocking components are prone to failure, leading to accidental unlocking or inability to unlock.

[0055] This invention also provides a battery disassembly and assembly platform, such as... Figure 1 , Figure 11 and Figure 12As shown, it includes a base 1, a support platform 8, and a scissor mechanism 2 disposed between the base 1 and the support platform 8. The lower front hinge portion 21 of the scissor mechanism 2 is hinged to the base 1, the lower rear sliding portion 22 of the scissor mechanism 2 is slidably connected to the base 1 in the front-rear direction, the upper front hinge portion 23 of the scissor mechanism 2 is hinged to the support platform 8, and the upper rear sliding portion 24 of the scissor mechanism 2 is slidably connected to the support platform 8 in the front-rear direction. A hydraulic cylinder assembly 71 is disposed inside the scissor mechanism 2, and a hydraulic station 72 is connected to the hydraulic cylinder assembly 71. The hydraulic station 72 is disposed on the base 1. The safety mechanism of the present invention is disposed between the scissor mechanism 2 and the base 1. The base 1 is a handcart, which allows the battery removal and installation platform to be moved around. The support platform 8 includes a base 81, a sliding platform 82, and a rotating platform 83. The base 81 is connected to the scissor lift mechanism 2. The base 81 is equipped with a ball bearing assembly 811. The sliding platform 82 is slidably connected to the base 81 via the ball bearing assembly 811. A locking weight 812 is provided between the sliding platform 82 and the base 81 to lock the sliding platform 82. The horizontal position of the sliding platform 82 can be adjusted using the ball bearing assembly 811, and locked in place using the locking weight 812. The sliding platform 82 is equipped with multiple sets of adjusting nuts 821. The rotating platform 83 is angularly adjustable and connected to the sliding platform 82 via the adjusting nuts 821. The tilt angle of the rotating platform 83 can be adjusted using the adjusting nuts 821 to adapt to the bottom of different vehicle models. The rotating platform 83 is equipped with multiple sets of support pad assemblies 831. Each support pad assembly 831 is angularly adjustable and mounted on the rotating platform 83, allowing it to adapt to the uneven structure of the bottom of different vehicle models. This battery removal and installation platform can be adjusted in position and angle according to different vehicle models, making it highly adaptable.

[0056] Where there is no conflict, the above embodiments and features can be combined with each other.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the preferred technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the present invention.

Claims

1. A safety mechanism for a car lifting device, the car lifting device comprising a base (1) and a scissor mechanism (2) disposed on the base (1), wherein the lower front hinge portion (21) of the scissor mechanism (2) is hinged to the base (1), and the lower rear sliding portion (22) of the scissor mechanism (2) is slidably connected to the base (1) in the front-rear direction, characterized in that: The safety mechanism includes a swing plate (3), a connecting plate (4), a safety stop assembly (5), and multiple safety support blocks (11); Multiple safety support blocks (11) are arranged in the front-to-back direction on the base (1), and there is a locking gap between adjacent safety support blocks (11); The swing plate (3) is oscillatingly connected to the base (1) by means of the connecting plate (4). The swing plate (3) has a relatively forward and lower falling position and a relatively backward and higher lifting position on the base (1). The swing plate (3) can reach the falling position by swinging forward and the swing plate (3) can reach the lifting position by swinging backward. The safety stop assembly (5) is rotatably connected to the lower rear sliding part (22) of the scissor mechanism (2). The safety stop assembly (5) can flip up and down. Under the action of gravity, the safety stop assembly (5) tends to flip down. The safety stop assembly (5) is connected to the swing plate (3) and can be driven to flip up by the swing plate (3). The suspended end of the safety stop assembly (5) is the top end. When the swing plate (3) is in the lower position, the safety stop assembly (5) can freely flip up and down. When the safety stop assembly (5) flips down and its top end abuts against the safety support block (11) from front to back, the safety mechanism is locked. When the swing plate (3) is in the upper position, the swing plate (3) causes the safety stop assembly (5) to flip up and its top end moves away from the safety support block (11), and the safety mechanism is unlocked. The safety mechanism also includes a lifting rod (6), which includes a horizontal rod (61) and a lower extension rod (62) extending downward from one end of the horizontal rod (61). The lower extension rod (62) is connected to the safety stop assembly (5). The horizontal rod (61) is supported by the support surface of the swing plate (3). The swing plate (3) flips the safety stop assembly (5) upward by means of the lifting rod (6). The safety mechanism includes two connecting plates (4), each connecting plate (4) having its two ends hinged to the base (1) and the swing plate (3) respectively. The base (1), the swing plate (3), and the two connecting plates (4) form a parallelogram structure. The point where the connecting plate (4) is hinged to the base (1) is taken as the vertex (41), and the horizontal line from the vertex (41) from back to front is taken as the baseline (42). When the swing plate (3) is in the falling position, the angle ∠1 between the connecting plate (4) and the baseline (42) is less than 90°. During the process of the swing plate (3) changing from the falling position to the lifting position, the angle between the connecting plate (4) and the baseline (42) continuously increases. When the swing plate (3) is in the lifting position, the angle ∠2 between the connecting plate (4) and the baseline (42) is greater than 90°.

2. The security mechanism according to claim 1, characterized in that: The safety stop assembly (5) includes a stop block (51). The lower rear sliding part (22) of the scissor mechanism (2) is provided with a round tube (221). Both ends of the round tube (221) are provided with stop blocks (51). The stop blocks (51) are rotatably connected to the round tube (221) by means of a sleeve (52). A long strip plate (53) is connected between the two stop blocks (51) so that the two stop blocks (51) flip synchronously. The long strip plate (53) is connected to the lifting rod (6). Multiple safety support blocks (11) are symmetrically arranged on the left and right sides of the base (1), and the blocking blocks (51) at the left and right ends of the round tube (221) cooperate with the safety support blocks (11) on the left and right sides of the base (1).

3. The security mechanism according to claim 1, characterized in that: A reset block (31) is fixedly installed on the support surface of the swing plate (3). During the process of the scissor mechanism (2) rising from the low position to the high position, the lifting rod (6) slides forward along the support surface of the swing plate (3). After the lifting rod (6) contacts the reset block (31), the lifting rod (6) pushes the reset block (31) and the swing plate (3) forward together until the swing plate (3) reaches the lower position. The reset block (31) is positioned in the front-back direction such that, during the process of the scissor mechanism (2) rising from the low position to the high position, the lifting rod (6) first contacts the reset block (31) and pushes the swing plate (3) to the lower position, and then the safety stop assembly (5) contacts the safety support block (11); after the lifting rod (6) pushes the swing plate (3) to the lower position, the last safety support block (11) contacts the safety stop assembly (5) and flips the safety stop assembly (5) upward, and the lifting rod (6) is lifted and leaves the reset block (31).

4. The security mechanism according to claim 3, characterized in that: The front end face of the reset block (31) is a chamfered transition structure (311), the rear end face of the reset block (31) is a vertical angle structure (312), and the horizontal rod (61) of the lifting rod (6) is cylindrical.

5. The safety mechanism according to claim 1, characterized in that: The base (1) is provided with a limit block (12). When the swing plate (3) swings to the upper position, the swing plate (3) abuts against the limit block (12) and the swing plate (3) cannot continue to swing backward.

6. The security mechanism according to claim 1, characterized in that: The swing plate (3) includes a horizontally extending support plate (32) and a lower extension plate (33) extending downward from one side of the support plate (32). The connecting plate (4) is hinged to the lower extension plate (33). The top surface of the support plate (32) forms the support surface of the swing plate (3). When the swing plate (3) swings to the lower position, the support plate (32) rests on the base (1), and the swing plate (3) cannot continue to swing forward.

7. The security mechanism according to claim 6, characterized in that: The outer side of the lower extension plate (33) is connected to a foot-moving force plate (34).

8. A battery disassembly and assembly platform, comprising a base (1), a support platform (8), and a scissor mechanism (2) disposed between the base (1) and the support platform (8), wherein the lower front hinge (21) of the scissor mechanism (2) is hinged to the base (1), the lower rear sliding part (22) of the scissor mechanism (2) is slidably connected to the base (1) in the front-rear direction, the upper front hinge (23) of the scissor mechanism (2) is hinged to the support platform (8), the upper rear sliding part (24) of the scissor mechanism (2) is slidably connected to the support platform (8) in the front-rear direction, a hydraulic cylinder assembly (71) is disposed within the scissor mechanism (2), the hydraulic cylinder assembly (71) is connected to a hydraulic station (72), and the hydraulic station (72) is disposed on the base (1), characterized in that: A safety mechanism as described in any one of claims 1 to 7 is provided between the scissor mechanism (2) and the base (1); The base (1) is a handcart; The support platform (8) includes a base (81), a sliding table (82), and a rotating table (83); the base (81) is connected to the scissor mechanism (2); the base (81) is provided with a ball bearing assembly (811), the sliding table (82) is slidably connected to the base (81) by means of the ball bearing assembly (811), and a locking weight (812) for locking the sliding table (82) is provided between the sliding table (82) and the base (81); the sliding table (82) is provided with multiple sets of adjusting nut assemblies (821), and the rotating table (83) is angularly adjustablely connected to the sliding table (82) by means of the adjusting nut assemblies (821); the rotating table (83) is provided with multiple sets of support pad assemblies (831), and each support pad assembly (831) is angularly adjustablely mounted on the rotating table (83).

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