WO2024078452A1

WO2024078452A1 - Portable car lifting mechanism and device, and system

Info

Publication number: WO2024078452A1
Application number: PCT/CN2023/123584
Authority: WO
Inventors: 吴永锋
Original assignee: 广州好想法信息科技有限公司
Priority date: 2022-10-11
Filing date: 2023-10-09
Publication date: 2024-04-18
Also published as: CN117902511A

Abstract

Provided are a portable car lifting mechanism and device, and a system. The portable car lifting mechanism comprises a base (41); a movement unit (35), which is fixedly arranged relative to the base (41); and a supporting portion (42), which can be driven by the movement unit (35) to move relative to the base (41) in a vertical direction, wherein the supporting portion (42) is configured to be capable of supporting a wheel of a car. The base (41) and the supporting portion (42) are arranged on the same side of the movement unit (35), and the base (41) is located on the outside of the supporting portion (42). During use, a car can be lifted as a whole by means of four portable car lifting mechanisms, so as to avoid the problem of the car being flooded due to water accumulation. The base (41) and the supporting portion (42) are arranged on the same side of the movement unit (35), and the base (41) is located on the outside of the supporting portion (42); and the structural design can keep the structural compactness of the portable car lifting mechanism, and can also ensure the operation stability of the portable car lifting mechanism.

Description

Portable vehicle lifting mechanism, device and system

Technical Field

The present application relates to a lifting device, and in particular to a portable automobile lifting mechanism, device and system.

Background technique

As residents' living standards improve, more and more families have purchased cars.

However, as a special movable property, cars are not cheap. If they are damaged, it will be a big loss for the family. In daily life, the most serious damage to cars is caused by water flooding, in addition to collision damage. The damage caused by collision is man-made loss, which can generally be avoided by paying attention to driving safety, while the damage caused by water flooding is mainly caused by bad weather such as heavy rain.

At present, in order to solve the problem of cars being flooded, people can generally only park their cars at higher altitudes before a predicted rainstorm. However, there are limited places with higher altitudes after all. Therefore, some people think of parking cars on overpasses on the eve of a rainstorm. However, this behavior not only affects traffic safety, but also may lead to administrative penalties.

It can be seen that at present, solving the problem of car flooding is an urgent problem that car owners need to solve.

Summary of the invention

In order to solve the problem of car immersion, according to one aspect of the present application, a portable car lifting mechanism is provided.

The portable car lifting mechanism comprises a base; a moving unit fixedly arranged relative to the base; and a supporting part which can move relative to the base in a vertical direction under the drive of the moving unit, and the supporting part is arranged to support the wheels of a car; wherein the base and the supporting part are arranged on the same side of the moving unit, and the base is located outside the supporting part.

When using the portable car lifting mechanism, four sets of portable car lifting mechanisms need to be used simultaneously. First, the relative positions of the base and the support part are adjusted by the mobile unit so that the two are basically in the same plane, and the support part is placed under the wheels of the car. Then, the mobile unit can be driven to drive the support part supporting the wheel to perform a lifting movement relative to the base to lift the car as a whole, thereby avoiding the problem of flooding due to water accumulation. In the scheme of the present application, since the base and the support part are arranged on the same side of the mobile unit, and at the same time, the base is located on the outside of the support part, this structural design can ensure the stability of the operation of the portable car lifting mechanism while maintaining the compactness of the structure.

In some embodiments, at least one of the base and the support part is configured as a "匚"-shaped structure to ensure the lightweight of the portable car lifting mechanism. Preferably, the openings of the "匚"-shaped structure are all arranged toward the side away from the mobile unit, and the base and the support part of the "匚"-shaped structure can be inserted into the front and rear sides of the wheel after the car is parked in place, so that when the support part is driven by the mobile unit to perform a lifting movement relative to the base, the support part can drive the wheel to lift together without the need to run the car onto the placed portable car lifting mechanism, which makes the operation more flexible and convenient. Preferably, at least one of the base and the support part is configured with a hollow tube body, and/or at least one of the base and the support part is provided with a through hole to further ensure the lightweight of the portable car lifting mechanism, and the through hole provided on the support part can also play a role in increasing the friction of the contact surface. In particular, the height of the base is greater than the height of the support part to improve the grip of the base.

In some embodiments, the support portion is detachably connected to the mobile unit so that the portable vehicle lift can be used when not in use. When the portable automobile lifting mechanism is used, the supporting part can be disassembled from the mobile unit for storage; and/or the supporting part includes a connecting part detachably connected to the mobile unit, and two contact parts connected through the connecting part and used to contact the wheels, and the connecting part and the contact part together form a "匚"-shaped structure; and/or the base includes a connecting pipe fixed relatively to the mobile unit, and two side pipes detachably connected through the connecting pipe, and the connecting pipe and the side pipe together form a "匚"-shaped structure; in particular, the distance from the side pipe to the connecting pipe is greater than the distance from the contact part to the connecting part, so as to ensure the stability of the operation of the portable automobile lifting mechanism.

Therefore, when the portable vehicle lifting mechanism is not in use, the contact portion can be removed from the connecting portion, and the side pipe can also be removed from the connecting pipe, so that the portable vehicle lifting structure can be easily stored after being disassembled, for example, in the trunk of a car.

In some embodiments, the contact part is threadedly connected to the connecting part; and/or the connecting tube and the side tube are splined. Thus, the contact part and the side tube can be detachably connected to the connecting part and the connecting tube respectively without the aid of external tools, which is convenient to operate; moreover, the contact part and the connecting part are threadedly connected to ensure the stability of the supporting part supporting the wheel, and prevent the contact part from falling off from the connecting part during the lifting and lowering movement of the supporting part; the connecting tube and the side tube are splined, which can not only improve the efficiency of the connection between the two, but also prevent the two parts from rotating relative to each other after the connection, and ensure the stability of the base.

In some embodiments, the top of the contact portion is arranged in an arc shape so that the force applied by the contact portion to the wheel can be distributed more evenly to avoid the wheel from cutting into the contact portion; preferably, the contact portion is a cylindrical tubular structure so that the contact portion connected to the connecting portion is always in contact with the wheel through the arc surface, especially, even when the contact portion is connected to the connecting portion by a thread, the arc surface contact between the wheel and the contact portion is not affected by the depth of the thread screwing; and/or the connecting tube and the side tube are square tubes with a square cross-section to improve the grip of the base formed by the connection of the side tube and the connecting tube. Preferably, the width of the side tube is smaller than the height of the side tube. Since the base and the supporting portion are both arranged on the same side of the mobile unit, the height of the side tube is set to a shape higher than its width, which can improve the ability of the formed base to withstand torque; in particular, at least one of the connecting tube, the side tube, the contact portion and the connecting portion is a seamless steel tube to ensure the strength of the connecting tube, the side tube, the contact portion and the connecting portion.

In some embodiments, the moving unit includes a guide rail and a slider body that are adapted to each other; wherein the guide rail is arranged in a vertical direction; the base is relatively fixed on the guide rail; the support part is arranged on the slider body; in particular, the guide rail is a hollow channel steel to reduce the weight of the guide rail. Further, the slider body is located in the hollow part of the channel steel to achieve a compact structure; preferably, at least one of the base, the support part and the guide rail is provided with an anti-corrosion coating on its surface to extend the service life of the base, the support part and the guide rail.

According to one aspect of the present invention, a portable vehicle lifting device is provided.

The portable car lifting device includes the aforementioned portable car lifting mechanism; and also includes a driving unit with a locking function that can drive the mobile unit to drive the support part to move in the vertical direction. The portable car lifting device of the present application can drive the mobile unit to drive the support part to move in the vertical direction to a desired position and keep it locked, thereby reducing the risk of the car being soaked by rainstorm water.

In some embodiments, the driving unit includes a first screw rod pivotally arranged relative to the moving unit around its axis, the first screw rod is arranged along the direction in which the moving unit drives the supporting part to move; and a first nut adapted on the first screw rod, the first nut is arranged on the moving unit, whereby even if the first screw rod stops rotating, since the first nut is threadedly connected to the first screw rod, the first nut can be kept in this position and will not change with the change of time until the first screw rod rotates again; preferably, the first screw rod is pivotally arranged relative to the guide rail of the moving unit, and the first screw rod is arranged along the extension direction of the guide rail, and the first nut is arranged on the slider body of the moving unit adapted to the guide rail; further, the guide rail is a hollow channel steel, and the first screw rod and the first nut are located in the hollow part of the channel steel to achieve compactness of the structure.

In some embodiments, the drive unit further includes a drive device for driving the first screw rod to move; and further includes a control module for driving the drive device to start and stop; wherein at least one of the drive device and the control module can be detachably arranged relative to the guide rail.

Therefore, the start and stop of the driving device can be controlled by the control module to control the rotation state of the first screw rod, and then the first nut adapted on the first screw rod can be controlled as needed to drive the slider body to move along the extension direction of the guide rail; and, since the control module and the driving device can be removed from the guide rail, even if it rains when the portable car lifting mechanism is used outdoors, the control module and the driving device can be removed from the guide rail to avoid damage to the control module and the driving device due to rain. At the same time, since it is the first nut adapted on the first screw rod that drives the slider body to perform the lifting movement, even if the control module and the driving device are removed from the guide rail, the position of the first nut on the first screw rod will not be affected, so as to ensure the stability of the portable car lifting module in lifting the car.

In some embodiments, the portable car lifting device further comprises a cover body, the cover body is provided with a first accommodating cavity and a first opening for connecting the first accommodating cavity with the outside, the first opening is arranged at the bottom of the cover body; and a bracket of a driving unit detachably connected to the cover body; wherein the control module is arranged on the cover body and is located in the first accommodating cavity; and the first connecting structure of the cover body connected to the bracket is arranged on the side wall of the cover body. Since the first opening is arranged at the bottom of the cover body, and the first connecting structure of the cover body connected to the bracket is arranged on the side wall of the cover body, it is convenient to connect and disassemble the cover body and the bracket, and even if the car lifting device is used on rainy days, the control module arranged in the first accommodating cavity is not easy to encounter water, thereby preventing the driving unit from being damaged by the control module encountering water and being unable to be used. In particular, the portable car lifting device further comprises a power supply, which is plugged into the cover body, and when the power supply is plugged into the cover body, the power supply is electrically connected to the control module. Therefore, when the power supply is exhausted, the power supply can be replaced by disassembling the power supply; and when the power supply is plugged into the cover body, the power supply can be electrically connected to the control module, which is convenient to operate. In particular, the drive device is detachably connected to the bracket, and/or the drive device is electrically connected to at least one of the control module and the power supply in a detachable manner. Thus, the drive device can be prevented from being damaged by water seepage by removing the drive device from the bracket; and when the drive device is also detachably electrically connected to at least one of the control module and the power supply, the speed of disassembling the drive device, the control module and the power supply can be increased. Preferably, the cover is located above the drive device. Thus, even if the drive device and the cover are not removed from the bracket, the drive device can be protected from rain by the cover.

In some embodiments, the bracket includes a bottom plate and a top plate connected to each other; the transmission unit of the drive unit is arranged between the bottom plate and the top plate; the drive device is detachably connected to the bottom plate and is located below the bottom plate; the transmission unit and the top plate are located in the first accommodating cavity; and a first channel is provided on the bottom plate for a connection line connecting the drive device to the control module or the power supply to pass through. Thus, the cover body can be used to prevent the transmission unit and the connection line from being interfered with externally during operation. In particular, avoidance structures are provided on both sides of the top plate located above the first channel so as to provide a path for the connection line while avoiding mutual interference between the connection line and the transmission unit. Furthermore, a third connection structure for connecting the bottom plate to the drive device is provided on the bottom plate below the avoidance structure so as to connect the drive device to the bottom plate while providing a path for the connection line. Furthermore, in addition to the third connection structure, the bottom plate is also provided with a first positioning hole corresponding to the fourth connection structure on the driving device for connecting to the bottom plate. Since it is generally necessary to connect the two components at three evenly distributed locations to form a relatively stable connection relationship, due to structural limitations, avoidance structures are only provided on both sides of the position of the top plate corresponding to the first channel, and at most only two third connection structures for connecting to the driving device can be provided on the bottom plate. In order to avoid the driving device connected to the bottom plate from shaking during operation, a first positioning hole corresponding to at least one of the fourth connection structures of the driving device is also provided on the bottom plate. Exemplarily, the transmission unit is a gear pair installed between the bottom plate and the top plate, the top plate is provided with a second channel for a manual drive rod for manually driving the gear pair to rotate to pass through, and the bottom plate is provided with a second positioning hole for positioning the manual drive rod. Thus, even when the power supply is exhausted, Or in the event that at least one of the control module and the drive device is damaged, the cover body can still be removed from the bracket, and the manual drive rod can be passed through the second channel and inserted into the second positioning hole for positioning, so that the operator can drive the gear pair to work by manually cranking the manual drive rod under special circumstances.

In some embodiments, the slider body can be pivotally connected to the first nut around a first pivot axis, and the axis of the first pivot axis is perpendicular to the extension direction of the guide rail. Therefore, even if the slider body deviates from the fitting clearance with the guide rail due to wear during processing, installation and use, the slider body can pivot around the axis of the first pivot axis to enable the slider body to move smoothly relative to the guide rail, thereby reducing the friction between the slider body and the guide rail; preferably, the first nut and the first pivot axis are both made of high-strength rigid material, and the slider body is made of material with lower hardness than the guide rail; further, the slider body is made of plastic or lightweight metal material, and/or at least one of the first nut and the first pivot axis is a hollow structure.

The first nut and the first pivot shaft are made of high-strength rigid materials to improve their strength and avoid deformation, so as to ensure the stability of the slider module. Preferably, high-strength and light-weight metal is used. Generally, the guide rail is made of alloy steel, and the slider body can be made of plastic or lightweight metal materials such as aluminum alloy or other non-metallic materials such as carbon fiber. Preferably, high-density plastic is used to have the characteristics of both high strength and light weight. Since the hardness of the slider body is less than the hardness of the guide rail, the slider body has a certain tension. At the same time, since the slider body can be pivotally connected to the first nut, even if the slider module is under load, the slider body will not be embedded in the guide rail when it moves relative to the guide rail even if it rotates relative to the first nut, so as to ensure that the slider body can move smoothly relative to the guide rail. At least one of the first nut and the first pivot shaft is a hollow structure, which can achieve the purpose of reducing the weight of both.

In some embodiments, the slider body has two side surfaces that are separated from each other and can cooperate with the guide rail to achieve surface contact between the slider body and the guide rail; thus, even if the slider body rotates relative to the first nut, the side surface of the slider body can cooperate with the guide rail to avoid deformation of the slider body due to a large pressure on the contact surface of the slider body due to a small contact surface with the guide rail; and, since the area of the slider body adapted to the guide rail is large, it can be ensured that the slider body is more stably adapted to the guide rail; further, the slider body is at least arranged on one side of the first nut, and at least two slider bodies are provided on at least one side of the first nut, and the slider bodies on this side are arranged in sequence along the extension direction of the guide rail; thus, the length of the slider body adapted to the guide rail can be extended to ensure that the first nut can stably move along the guide rail under the drive of the driving unit; and, since at least two slider bodies are provided along the extension direction of the guide rail, the rotation of different slider bodies relative to the first nut is freer, avoiding the problem that the slider body is easily embedded in the guide rail due to the increase in the length of the slider body adapted to the guide rail. Preferably, slider bodies are provided on both sides of the first nut that are separated from each other. Therefore, when the slider body is matched with the guide rail, the first nut can move more smoothly relative to the guide rail.

According to one aspect of the present application, a car lifting system is provided. The car lifting system includes a main control module and four groups of the aforementioned portable car lifting devices; wherein the main control module is configured to control the start and stop of the control module. Thus, the main control module can control the four groups of portable car lifting devices to start together, or control one group of portable car lifting devices to start.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of a portable vehicle lifting mechanism according to an embodiment of the present invention;

FIG2 is a schematic cross-sectional view of the portable vehicle lifting mechanism shown in FIG1 ;

FIG3 is a schematic structural diagram of the portable vehicle lifting mechanism shown in FIG1 in a lifting state;

FIG4 is a schematic structural diagram of the portable vehicle lifting mechanism shown in FIG1 in a disassembled state;

FIG5 is a schematic structural diagram of a portable vehicle lifting device according to an embodiment of the present invention;

FIG6 is a schematic cross-sectional view of the portable vehicle lifting device shown in FIG5 ;

FIG7 is a schematic structural diagram of the portable vehicle lifting device shown in FIG5 in a disassembled state;

FIG8 is a schematic cross-sectional view of the portable vehicle lifting device shown in FIG5 omitting the base, the supporting portion and the moving unit;

FIG9 is a schematic structural diagram of the portable vehicle lifting device shown in FIG8 in a disassembled state;

FIG10 is a schematic structural diagram of a slider body according to an embodiment of the present invention;

FIG11 is a schematic structural diagram of the slider body shown in FIG10 from another perspective;

FIG12 is a schematic diagram of the cross-sectional structure of the slider body shown in FIG11 along the A-A direction;

FIG13 is a schematic structural diagram of the slider body shown in FIG10 in a disassembled state;

FIG14 is a schematic structural diagram of a vehicle lifting system according to an embodiment of the present invention;

Reference numerals: 20, driving unit; 21, first nut; 22, first screw rod; 23, driving device; 231, fourth connecting structure; 24, transmission unit; 25, bracket; 251, bottom plate; 2511, first channel; 2512, third connecting structure; 2513, second positioning hole; 252, top plate; 2521, second connecting structure; 2522, avoidance structure; 2523, second channel; 31, first connecting member; 32, first pivot shaft; 321, Axis; 33, slider body; 34, guide rail; 35, moving unit; 41, base; 411, connecting pipe; 412, side pipe; 413, spline shaft; 414, spline groove; 42, supporting portion; 421, contact portion; 422, connecting portion; 43, through hole; 51, cover body; 511, first accommodating cavity; 512, first opening; 513, first connecting structure; 514, top surface; 515, water guide groove; 52, power supply; 61, control module; 62, main control module.

Detailed ways

It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include" and "comprise" include not only those elements, but also other elements that are not explicitly listed, or also include elements inherent to such processes, methods, articles or equipment. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the existence of other identical elements in the process, method, article or equipment that includes the elements. The terms used in this article are generally commonly used terms by those skilled in the art. If they are inconsistent with commonly used terms, the terms in this article shall prevail.

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

1 to 4 schematically show a portable vehicle lifting mechanism according to an embodiment of the present invention.

As shown in Figures 1 to 4, the portable car lifting mechanism includes a base 41, a moving unit 35 and a support portion 42; wherein the moving unit 35 is fixedly arranged relative to the base 41, and the moving unit 35 is arranged to be able to drive the support portion 42 to move in a vertical direction relative to the base 41; the support portion 42 is arranged to be able to place the wheels of a car; the base 41 and the support portion 42 are both arranged on the same side of the moving unit 35, and the base 41 is located on the outside of the support portion 42.

As one embodiment of the moving unit 35, as shown in FIG. 2, the moving unit 35 includes a guide rail 34 and a slider body 33 adapted to each other; wherein the guide rail 34 is arranged in a vertical direction; and the base 41 is relatively fixed on the guide rail 34; The support portion 42 is disposed on the slider body 33. The mobile unit 35 may also be implemented by other structures capable of limiting the motion trajectory of the support portion 42. Any structure capable of limiting the motion trajectory of the support portion 42 may be used as the mobile unit 35 in the present invention. Unless otherwise specified, the present invention does not limit the specific implementation of the mobile unit 35.

When using the portable car lifting mechanism, four sets of portable car lifting mechanisms need to be used at the same time. First, the relative positions of the base 41 and the support part 42 are adjusted by the mobile unit 35 so that the two are basically in the same plane, and the support part 42 is placed under the wheel of the car. Then, the driving unit 20 with a locking function can drive the mobile unit 35 to drive the support part 42 supporting the wheel to perform a lifting movement relative to the base 41, so as to lift the car as a whole and avoid flooding due to water accumulation. In the scheme of the embodiment of the present application, the base 41 and the support part 42 are arranged on the same side of the mobile unit 35, and at the same time, the base 41 is located on the outside of the support part 42. Such a structural design can ensure the stability of the operation of the portable car lifting mechanism while maintaining the compactness of the structure of the portable car lifting mechanism.

As one preferred embodiment of the guide rail 34, as shown in Figures 1 to 4, the guide rail 34 is a hollow channel steel to reduce the weight of the guide rail 34, ensure the strength of the lifting mechanism, and prevent the guide rail 34 from bending and deforming when driving the car to rise and fall. Further, the slider body 33 is located in the hollow part of the channel steel to achieve a compact structure.

As one of the preferred embodiments of the base 41 and the support part 42, as shown in Fig. 1, Fig. 3 and Fig. 4, the base 41 and the support part 42 are both formed by a hollow tube body, and the base 41 and the support part 42 are integrally formed or processed with a through hole 43, so as to further ensure the lightweight of the portable car lifting mechanism, and the through hole 43 provided on the support part 42 can also play a role in increasing the friction of the contact surface. In other possible embodiments, the base and the support part can also be formed by only one of the hollow tube body, and the through hole 43 can be provided on the tube body, or no through hole can be provided, for example, only the base 41 is made of a hollow tube body, or only the support part 42 is made of a hollow tube body, or the base 41 made of a hollow tube body is also integrally formed or processed with a through hole 43, or the support part 42 made of a hollow tube body is also integrally formed or processed with a through hole 43.

As another preferred embodiment of the base 41 and the support portion 42 , as shown in FIGS. 1 and 2 , the height of the base 41 is greater than the height of the support portion 42 , so as to improve the grip of the base 41 .

As another preferred embodiment of the base 41 and the support part 42, as shown in Figures 1 to 3, the base 41 and the support part 42 are both arranged in a "匚"-shaped structure to further ensure the lightweight of the portable car lifting mechanism. Preferably, as shown in Figures 1 and 3, the openings of the "匚"-shaped structure are arranged toward the side away from the moving unit 35, and the base 41 and the support part 42 of the "匚"-shaped structure can be inserted into the front and rear sides of the wheel after the car is parked in place, so that when the support part 42 is driven by the moving unit 35 to perform a lifting movement relative to the base 41, the support part 42 can drive the wheel to lift together, without the need to run the car onto the placed portable car lifting mechanism, and the operation is more flexible and convenient. Preferably, as shown in FIG. 4 , the support portion 42 includes a connecting portion 422 and a contact portion 421, wherein the connecting portion 422 is detachably connected to the moving unit 35. When the moving unit 35 includes a guide rail 34 and a slider body 33 that are adapted to each other, the connecting portion 422 is detachably arranged relative to the slider body 33; the contact portion 421 is used to contact the wheel, and the contact portion 421 is provided with two, and the two contact portions 421 are detachably connected to the two ends of the connecting portion 422, so as to form a "匚" shape through the connection between the connecting portion 422 and the contact portion 421. Structure; preferably, as shown in FIG. 4 , the base 41 includes a connecting tube 411 and a side tube 412; wherein the connecting tube 411 is fixed relative to the moving unit 35, and when the moving unit 35 includes a guide rail 34 and a slider body 33 that are adapted to each other, the connecting tube 411 is fixed relative to the guide rail 34, for example, the connecting tube 411 is installed on the guide rail 34; two side tubes 412 are provided, and the two side tubes 412 are detachably connected to the two ends of the connecting tube 411, respectively, so as to form a "匚"-shaped structure through the connection between the connecting tube 411 and the side tube 412. Thus, when the portable car lifting mechanism is not in use, the contact portion 421 can be removed from the connecting portion 422, and the side tube 412 can also be removed from the connecting tube 411, so that the portable car lifting structure can be easily stored after disassembly, for example, for storage. In the trunk of a car. Further, referring to FIG. 4 , the contact portion 421 is threadedly connected to the connection portion 422, and the connection pipe 411 is splined to the side pipe 412. In other possible implementations, only the contact portion 421 and the connection portion 422 may be threadedly connected, or only the connection pipe 411 and the side pipe 412 may be splined. For example, a spline shaft 413 is integrally formed, processed or connected to one of the connection pipe 411 and the side pipe 412, and a spline groove 414 adapted to the spline shaft 413 is integrally formed or processed to the other. Thus, the contact part 421 and the side tube 412 can be detachably connected with the connecting part 422 and the connecting tube 411 respectively without the aid of external tools, and the operation is convenient; moreover, the contact part 421 and the connecting part 422 are connected by threads, which can ensure the stability of the supporting part 42 supporting the wheel, and prevent the contact part 421 from falling off from the connecting part 422 during the lifting movement of the supporting part 42; the connecting tube 411 and the side tube 412 are splined, which can not only improve the efficiency of the connection between the two, but also prevent the two parts from rotating relative to each other after the connection, and ensure the stability of the base 41. In addition, the contact part 421 and the connecting part 422, as well as the connecting tube 411 and the side tube 412 are all set in a detachable connection mode, which can further ensure the compactness of the structure of the automobile lifting mechanism in the non-use state. Further, as shown in Figures 1 and 2, the distance d1 from the side tube 412 to the connecting tube 411 is greater than the distance d2 from the contact part 421 to the connecting part 422, so as to ensure the stability of the operation of the portable automobile lifting mechanism. In particular, at least one of the connecting pipe 411, the side pipe 412, the contact portion 421 and the connecting portion 422 is a seamless steel pipe to ensure the strength of the connecting pipe 411, the side pipe 412, the contact portion 421 and the connecting portion 422. Optionally, in other possible implementations, only one of the base 41 and the support portion 42 may be configured as a "匚"-shaped structure.

As one of the preferred embodiments of the contact portion 421, as shown in Fig. 1 to Fig. 4, the top of the contact portion 421 is arranged in an arc shape, so that the force applied by the contact portion 421 on the wheel can be distributed more evenly, and the wheel is prevented from being cut into the contact portion 421, wherein it should be noted that the top here refers to the end of the contact portion 421 that contacts the wheel when in use to support the wheel. Preferably, the contact portion 421 is a cylindrical tubular structure, so that the contact portion 421 connected to the connecting portion 422 is always in contact with the wheel through the arc surface, especially, even if the contact portion 421 is connected to the connecting portion 422 by threads, the arc surface contact between the wheel and the contact portion 421 will not be affected by the depth of the screwing in of the threads.

As one of the preferred embodiments of the connecting tube 411 and the side tube 412, as shown in Fig. 1, Fig. 3 and Fig. 4, the connecting tube 411 and the side tube 412 are square tubes with a square cross section, so as to improve the gripping force of the base 41 formed by connecting the side tube 412 and the connecting tube 411. Preferably, the width of the cross section of the side tube 412 is smaller than its height. Since the base 41 and the support part 42 are both arranged on the same side of the moving unit 35, the height of the side tube 412 is set to be higher than its width, which can improve the ability of the formed base 41 to withstand torque.

As one preferred embodiment of the support portion 42, as shown in FIG4, the support portion 42 is detachably connected to the mobile unit 35, so that when the portable vehicle lifting mechanism is not in use, the support portion 42 can be removed from the mobile unit 35 for storage.

Preferably, the surface of at least one of the base 41, the support portion 42 and the guide rail 34 is provided with an anti-corrosion coating, for example, the surface of at least one of the base 41, the support portion 42 and the guide rail 34 is galvanized to extend the service life of the base 41, the support portion 42 and the guide rail 34.

5 to 13 schematically show a portable vehicle lifting device according to an embodiment of the present application.

As shown in FIGS. 5 to 7 , the portable car lifting device includes a driving unit 20 and the aforementioned portable car lifting mechanism; wherein the driving unit 20 is configured to drive the moving unit 35 to drive the supporting part 42 to move in the vertical direction, and the driving unit 20 has a locking function. When in use, the moving unit 35 can drive the supporting part 42 to move in the vertical direction to the required position under the drive of the driving unit 20, and the supporting part is locked in the required position through the locking function of the driving unit 20, thereby lifting the entire car to the desired height, reducing the risk of the car being soaked due to rainstorm water accumulation.

As one embodiment of the driving unit 20, as shown in Figures 5 to 7, the driving unit 20 includes a first screw rod 22 and a first nut 21 that are adapted to each other; wherein the first screw rod 22 can be rotatably arranged relative to the moving unit 35 around its axis, and the first screw rod 22 is arranged along the direction in which the moving unit 35 drives the supporting portion 42 to move; and the first nut 21 is arranged on the moving unit 35. Thus, even if the first screw rod 22 stops rotating, since the first nut 21 is connected to the first screw rod 22 by a thread, this connection mode can keep the first nut 21 in this position and will not change with the change of time (i.e., it has a locking function) until the first screw rod 22 rotates again. Preferably, the first screw rod 22 is rotatably arranged relative to the guide rail 34 of the moving unit 35, and the first screw rod 22 is arranged along the extension direction of the guide rail 34, and the first nut 21 is arranged on the slider body 33 of the moving unit 35 that is adapted to the guide rail 34. Furthermore, the guide rail 34 is a hollow channel steel, and the first screw rod 22 and the first nut 21 are located in the hollow part of the channel steel to achieve a compact structure. In some embodiments, the hollow part of the channel steel is also provided with a fixed seat at the bottom, and the bottom of the first screw rod is inserted into the fixed seat in a suspended or bottom-fixed manner, thereby achieving the fixation of the first screw rod and ensuring its stability during use. Preferably, the drive unit 20 also includes a drive device 23 for driving the first screw rod 22 to move, and exemplarily, the drive device 23 is a rotating motor. As shown in Figures 8 and 14, the drive unit 20 also includes a control module 61 for driving the drive device 23 to start and stop; wherein, at least one of the drive device 23 and the control module 61 can be detachably arranged relative to the guide rail 34. Therefore, the start and stop of the driving device 23 can be controlled by the control module 61 to control the rotation state of the first screw rod 22, and then the first nut 21 adapted on the first screw rod 22 can be controlled as needed to drive the slider body 33 to move along the extension direction of the guide rail 34; and, since the control module 61 and the driving device 23 can be removed from the guide rail 34, even if it rains when the portable car lifting mechanism is used outdoors, the control module 61 and the driving device 23 can be removed from the guide rail 34 to avoid damage to the control module 61 and the driving device 23 due to rain. At the same time, since it is the first nut 21 adapted on the first screw rod 22 that drives the slider body 33 to do the lifting movement, even if the control module 61 and the driving device 23 are removed from the guide rail 34, the position of the first nut 21 on the first screw rod 22 will not be affected, so as to ensure the stability of the portable car lifting device in lifting the car. Preferably, as shown in FIG8 , the control module 61 is connected to the cover body 51, and the cover body 51 is detachably connected to the guide rail 34, thereby not only can the cover body 51 be used to prevent the control module 61 from getting wet, but a control panel can also be set on the surface of the cover body 51 to facilitate the user to operate the control module 61 through the control panel.

As another embodiment of the driving unit 20, the driving unit 20 is implemented as a hydraulic cylinder capable of driving the slider body 33 to reciprocate along the extension direction of the guide rail 34. Specifically, the cylinder body of the hydraulic cylinder is installed on the guide rail 34, and the piston rod of the hydraulic cylinder extends along the extension direction of the guide rail 34 and is connected to the slider body 33 or the support part 42.

As another embodiment of the driving unit 20, the driving unit 20 is implemented as a linear motor capable of driving the slider body 33 to reciprocate along the extension direction of the guide rail 34. Specifically, the base of the linear motor is installed on the guide rail 34, and the driving rod of the linear motor extends along the extension direction of the guide rail 34 and is connected to the slider body 33 or the support part 42.

As a preferred embodiment, as shown in Figures 8 and 9, the cover body 51 is integrally formed or processed with a first accommodating cavity 511 and a first opening 512 that connects the first accommodating cavity 511 to the outside, and the first opening 512 is arranged at the bottom of the cover body 51; the control module 61 is mounted on the cover body 51 and is located in the first accommodating cavity 511; the bracket 25 of the drive unit 20 is detachably connected to the cover body 51, specifically, a first connecting structure 513 is integrally formed, processed or connected on the cover body 51, and a second connecting structure 2521 is integrally formed, processed or connected on the bracket 25, and the cover body 51 is detachably connected to the second connecting structure 2521 on the bracket 25 through the first connecting structure 513 thereon. Exemplarily, at least one of the first connecting structure 513 and the second connecting structure 2521 is a screw hole. When only one of the first connecting structure 513 and the second connecting structure 2521 is a screw hole, the other can be a through hole, for example, the first connecting structure 513 is a through hole, and the second connecting structure 2521 is a screw hole. The first connection structure 513 of the cover body 51 connected to the bracket 25 can be arranged on any other surface of the cover body 51 except the top surface 514 thereof, for example, the first connection structure 513 can be integrally formed, processed, or Or connected to the side or bottom of the cover 51, preferably, as shown in FIG9, the first connection structure 513 is arranged on the side of the cover 51, so as to facilitate operation while preventing rainwater from entering the first accommodating chamber 511 from the first connection structure 513. Exemplarily, the control module 61 can adopt the PLC or MCU of the prior art, and the present invention does not limit the specific implementation of the control module 61. Further, the portable car lifting device of the present application also includes a power supply 52 for supplying power to the drive device 23 and the control module 61. Preferably, the power supply 52 is detachably connected to the cover 51, and the power supply 52, the cover 51, the control module 61 and the drive device 23 are arranged so that when the power supply is connected to the cover 51, the connection line between the power supply and the control module 61 and the drive device 23 is connected (for example, a socket is connected to the cover 51, the socket is electrically connected to the control module 61 in the cover 51, and a plug is electrically connected to the power supply 52), and whether the power supply supplies power to the drive device 23 can be controlled by the control module 61. Preferably, the power supply 52 is a rechargeable battery.

In some preferred embodiments, the driving device 23 of the driving unit 20 is detachably connected to the bracket 25, and/or the driving device 23 is electrically connected to at least one of the control module 61 and the power supply 52 in a detachable manner, the control module 61 is used to control the start and stop of the driving device 23, and the driving device 23 is a rotating motor. After the portable car lifting device with the driving unit 20 is lifted, the power supply 52, the cover 51 connected with the control module 61 and the driving unit 20 can be removed (as shown in Figure 7) to avoid the power supply 52, the control module 61 and the driving unit 20 from being damaged by water ingress, and when the driving device 23 is also detachably electrically connected to at least one of the control module 61 and the power supply 52, the disassembly speed of the driving device 23, the control module 61 and the power supply 52 can also be increased. Preferably, as shown in Figure 9, the cover 51 is located above the driving device 23, so that when the driving device 23 and the cover 51 are not removed from the bracket 25, the driving device 23 can also be shielded from rain by the cover 51.

As one embodiment of the bracket 25, as shown in Figure 9, the bracket 25 includes a bottom plate 251 and a top plate 252 that are interconnected; the transmission unit 24 of the drive unit 20 is arranged between the bottom plate 251 and the top plate 252; the drive device 23 is detachably connected to the bottom plate 251 and is located below the bottom plate 251; the transmission unit 24 and the top plate 252 are located in the first accommodating cavity 511; the bottom plate 251 is integrally formed or processed with a first channel 2511 for passing a connecting line connecting the drive device 23 with the control module 61 or the power supply 52. Exemplarily, the first channel 2511 is a through hole integrally formed or processed on the bottom plate 251, thereby preventing the transmission unit 24 and the connecting line from being subjected to external interference during operation through the cover body 51. In particular, as shown in FIG9 , the top plate 252 is integrally formed or processed with avoidance structures 2522 on both sides above the first channel 2511. Exemplarily, the avoidance structures 2522 are through holes or barrel grooves integrally formed or processed on the top plate 252, so as to provide a path for the connection line while avoiding interference between the connection line and the transmission unit 24. Further, as shown in FIG9 , the bottom plate 251 below the avoidance structure 2522 is provided with a third connection structure 2512 for connecting the bottom plate 251 with the drive device 23. Exemplarily, the third connection structure 2512 is a through hole or screw hole integrally formed or processed on the bottom plate 251, so as to provide a path for the connection line while connecting the drive device 23 to the bottom plate 251. Further, in addition to the third connection structure 2512, the bottom plate 251 is also provided with a first positioning hole corresponding to the fourth connection structure 231 on the drive device 23 for connecting with the bottom plate 251, so as to avoid shaking of the drive device 23 connected to the bottom plate 251 during operation.

As an embodiment of the transmission unit 24, as shown in FIG9 , the transmission unit 24 is a gear pair pivotally mounted on the bottom plate 251 and the top plate 252 and located therebetween, that is, each gear in the gear pair is pivotally mounted on the bottom plate 251 and the top plate 252, and the rotating shafts of all the gears are arranged parallel to each other, and the gears in the gear pair are meshed with each other. Preferably, as shown in FIG9 , the top plate 252 is integrally formed or processed with a second channel 2523 for a manual drive rod for manually driving the gear pair to rotate to pass through; the bottom plate 251 is integrally formed or processed with a second positioning hole 2513 for positioning the manual drive rod; the manual drive rod is arranged so that when it is inserted into the second positioning hole 2513, the gear on the manual drive rod can mesh with a gear in the gear pair. Thus, even if the power of the power supply 52 is exhausted, or the control module 61 In the event that at least one of the gear and the driving device 23 is damaged, the cover body 51 can still be removed from the bracket 25, and the manual driving rod can be passed through the second channel 2523 and inserted into the second positioning hole 2513 for positioning, so that the operator can drive the gear pair to work by manually cranking the manual driving rod under special circumstances.

As another embodiment of the transmission unit 24, the transmission unit 24 may adopt an existing pulley transmission structure.

As another embodiment of the transmission unit 24, the transmission unit 24 may adopt an existing sprocket transmission structure.

As one of the preferred embodiments of the cover body 51, as shown in FIG9, the top surface 514 of the cover body 51 is provided with a control panel for controlling the control module 61. The control panel can be a control panel used in the prior art, and the present invention does not limit the specific implementation of the control panel; the top surface 514 of the cover body 51 is covered with a waterproof film; the top surface 514 of the cover body 51 is integrally formed or processed with a water guide groove 515 that connects the side edge of the top surface 514 with the outside. The waterproof film covering the top surface 514 can prevent the top surface 514 from seeping into the first accommodating cavity 511, and the water guide groove 515 provided on the side edge of the top surface 514 can prevent water from accumulating on the top surface 514, and further prevent water from seeping into the first accommodating cavity 511 from the top surface 514 of the cover body. In other embodiments, the waterproof film and the water guide groove 515 can also be provided selectively, that is, not provided at the same time.

As one of the preferred embodiments of the slider body 33, the slider body 33 can be pivotally connected to the first nut 21 around the first pivot axis 32. Specifically, as shown in FIGS. 10 to 13, the slider body 33 can be pivotally connected to the first connecting member 31 fixedly arranged relative to the first nut 21. In some possible embodiments, the first connecting member 31 can be connected to the first nut 21 or can be integrally formed with the first nut 21. The support portion 42 can be connected to the first nut 21 or can be connected to the first connecting member 31. In other embodiments, the slider body 33 can also be directly pivotally connected to the first nut 21. Therefore, even if the slider body 33 has a deviation in the matching clearance with the guide rail 34 due to wear during processing, installation and use, the slider body 33 can also move smoothly relative to the guide rail 34 through its pivotal movement around the axis 321 of the first pivot axis 32, thereby reducing the friction between the slider body 33 and the guide rail 34. In a preferred embodiment, the axis 321 of the first pivot axis 32 is perpendicular to the extension direction of the guide rail 34.

Preferably, the first nut 21 and the first pivot shaft 32 are both made of high-strength rigid material, and the slider body 33 is made of material with lower hardness than the guide rail 34. The hardness of the slider body 33 is less than the hardness of the guide rail 34, so that the slider body 33 has a certain tension. At the same time, since the slider body 33 is pivotally connected to the first nut 21, even if the slider module (referring to the structure composed of the slider body, the first nut, the first pivot shaft, and the guide rail) is under load, when the slider body 33 moves relative to the guide rail 34, even if the slider body 33 rotates relative to the first nut 21, it will not be embedded in the guide rail 34, so as to ensure that the slider body 33 can move smoothly relative to the guide rail 34. Furthermore, the slider body 33 is made of plastic or a lightweight metal material, and/or at least one of the first nut 21 and the first pivot shaft 32 is a hollow structure, thereby further achieving the purpose of weight reduction. For example, only the slider body 33 is made of plastic or a lightweight metal material, or only the first nut 21 is a hollow structure, or only the first pivot shaft 32 is a hollow structure, or the slider body 33 is made of plastic or a lightweight metal material and the first nut 21 is set to a hollow structure, or the slider body 33 is made of plastic or a lightweight metal material and the first pivot shaft 32 is set to a hollow structure, or the slider body 33 is made of plastic or a lightweight metal material and the first nut 21 and the first pivot shaft 32 are both set to hollow structures. The first nut 21 and the first pivot shaft 32 are made of high-strength rigid materials in order to improve the strength of the first nut 21 and the first pivot shaft 32 and avoid deformation of the first nut 21 and the first pivot shaft 32, so as to ensure the stability of the slider module (referring to the structure composed of the slider body, the first nut, the first pivot shaft, and the guide rail). For example, titanium alloy, magnesium alloy or aluminum alloy is used. Generally, the guide rail 34 is made of alloy steel, and correspondingly, the slider body 33 can be made of lightweight metal materials such as plastic or aluminum alloy or other non-metallic materials such as carbon fiber. The plastic includes, for example, general-purpose plastics such as PE, PP, PVC, PS, ABS, or engineering plastics such as PA, PC, POM, PPO, PET, or special plastics such as PSU, PPS, PEEK, PTFE, polyimide, etc. Preferably, the slider body 33 is made of high-density plastic to have the characteristics of high strength and light weight.

Further preferably, the slider body 33 is arranged at least on one side of the first nut 21, and at least two slider bodies 33 are provided on the same side of the first nut 21, and the slider bodies 33 on the same side are arranged in sequence along the extension direction of the guide rail 34; thereby, the length of the slider body 33 adapted to the guide rail 34 can be extended to ensure that the first nut 21 can stably move along the guide rail 34 under the drive of the driving unit 20; and, since at least two slider bodies 33 are provided along the extension direction of the guide rail 34, the rotation of different slider bodies 33 relative to the first nut 21 is freer, avoiding the problem that the slider body 33 is easily embedded in the guide rail 34 due to the increase in the length of the slider body 33 adapted to the guide rail 34. Preferably, the slider body 33 is provided on both opposite sides of the first nut 21, thereby, when the slider body 33 is adapted to the guide rail 34, the first nut 21 can move more smoothly relative to the guide rail 34. As shown in Fig. 10, Fig. 11 and Fig. 13, the structural relationship between the slider body and the first nut is shown by taking the example that two slider bodies 33 are provided on opposite sides of the first nut 21, and in this embodiment, the slider body 33 has two opposite sides 36 that can cooperate with the guide rail 34 to achieve surface contact between the slider body 33 and the guide rail 34, for example, the slider body 33 is integrally formed or processed into a square plate-like structure. Therefore, even if the slider body 33 rotates relative to the first nut 21, the side 36 of the slider body 33 can cooperate with the guide rail 34 to avoid deformation of the slider body 33 due to a small contact surface with the guide rail 34 due to a large pressure; and in the case of surface contact between the slider body 33 and the guide rail 34, since the area of the slider body 33 and the guide rail 34 are large, it can be ensured that the slider body 33 is more stably adapted to the guide rail 34. Preferably, the contact between adjacent slider bodies 33 on the same side of the first nut 21 is surface contact, thereby preventing the rotation of the slider body 33 relative to the first nut 21 from being hindered by the adjacent slider bodies 33 .

FIG. 14 schematically shows a vehicle lifting system according to an embodiment of the present application.

As shown in FIG14 , the vehicle lifting system includes a main control module 62 and four groups of the aforementioned portable vehicle lifting devices; wherein the main control module 62 is configured to control the start and stop of the control module 61. Thus, the main control module 62 can control the four groups of portable vehicle lifting devices to start together, or control one group of portable vehicle lifting devices to start.

In this application, "high strength" means a yield strength greater than 210 MPa.

In this application, "lightweight metal" is consistent with the general definition in the field of materials, including metal titanium, metal aluminum, metal magnesium, metal lithium, etc.

In this application, connection or installation is a fixed connection unless otherwise specified. Fixed connection can be implemented as a detachable connection or a non-detachable connection commonly used in the prior art. Detachable connection can be implemented using prior art, such as threaded connection or key connection. Non-detachable connection can also be implemented using prior art, such as welding or gluing.

The above are only some embodiments of the present application. For those skilled in the art, several modifications and improvements can be made without departing from the creative concept of the present application, and these all belong to the protection scope of the present application.

Claims

The portable vehicle lifting mechanism is characterized by comprising:

Base (41);

A moving unit (35) fixedly arranged relative to the base (41);

and a support portion (42) which can move in a vertical direction relative to the base (41) under the drive of the moving unit (35), wherein the support portion (42) is configured to support a wheel of a car; wherein:

The base (41) and the support portion (42) are arranged on the same side of the moving unit (35), and the base (41) is located outside the support portion (42).
The portable vehicle lifting mechanism according to claim 1, characterized in that at least one of the base (41) and the support portion (42) is arranged in a "匚"-shaped structure;

Preferably, the openings of the “匚”-shaped structure are all arranged toward a side away from the moving unit;

Preferably, at least one of the base (41) and the support portion (42) is formed by a hollow tube, and/or at least one of the base (41) and the support portion (42) is provided with a through hole (43);

Particularly, the height of the base (41) is greater than the height of the supporting portion (42).
The portable vehicle lifting mechanism according to claim 2, characterized in that the support portion (42) is detachably connected to the moving unit (35); and/or

The supporting portion (42) comprises a connecting portion (422) connected to the moving unit (35), and two contact portions (421) detachably connected via the connecting portion (422) and used to contact the wheel, wherein the connecting portion (422) and the contact portion (421) together constitute the “匚”-shaped structure; and/or

The base (41) comprises a connecting pipe (411) fixed relatively to the moving unit (35), and two side pipes (412) detachably connected via the connecting pipe (411), wherein the connecting pipe (411) and the side pipes (412) together form the “匚”-shaped structure;

Particularly, the distance from the side tube (412) to the connecting tube (411) is greater than the distance from the contact portion (421) to the connecting portion (422);

In particular, the contact portion (421) is threadedly connected to the connecting portion (422); and/or the connecting pipe (411) is splinedly connected to the side pipe (412);

The top of the contact portion (421) is arranged in an arc shape, and preferably, the contact portion (421) is a cylindrical tubular structure; and/or the connecting tube (411) and the side tube (412) are square tubes with a square cross section, and preferably, the width of the side tube (412) is smaller than the height of the side tube (412);

Particularly, at least one of the connecting pipe (411), the side pipe (412), the contact portion (421) and the connecting portion (422) is a seamless steel pipe.
The portable vehicle lifting mechanism according to any one of claims 1 to 3 is characterized in that the moving unit (35) comprises a guide rail (34) and a slider body (33) adapted to each other; wherein,

The guide rail (34) is arranged along the vertical direction;

The base (41) is relatively fixed on the guide rail (34);

The supporting portion (42) is arranged on the slider body (33);

Particularly, the guide rail (34) is a hollow channel steel;

Furthermore, the slider body (33) is located in the hollow part of the channel steel;

Preferably, a surface of at least one of the base (41), the support portion (42) and the guide rail (34) is provided with an anti-corrosion coating.
A portable vehicle lifting device, characterized in that it comprises the portable vehicle lifting mechanism according to any one of claims 1 to 4;

It also includes a driving unit (20) with a locking function, which is capable of driving the moving unit (35) to drive the supporting portion (42) to move in a vertical direction.
The portable vehicle lifting device according to claim 5, characterized in that the driving unit (20) comprises:

a first screw rod (22) rotatably arranged relative to the moving unit (35) about its axis, the first screw rod (22) being arranged along the direction in which the moving unit (35) drives the supporting portion (42) to move;

and a first nut (21) adapted on the first screw rod (22), wherein the first nut (21) is arranged on the moving unit (35);

Preferably, the first screw rod (22) is rotatably arranged relative to the guide rail (34) of the moving unit (35), and the first screw rod (22) is arranged along the extension direction of the guide rail (34), and the first nut (21) is arranged on a slider body (33) of the moving unit (35) adapted to the guide rail (34);

Furthermore, the guide rail (34) is a hollow channel steel, and the first screw rod (22) and the first nut (21) are located in the hollow part of the channel steel.
The portable vehicle lifting device according to claim 6, characterized in that the driving unit (20) further comprises a driving device (23) for driving the first screw rod (22) to move;

It also includes a control module (61) for driving the driving device (23) to start and stop; wherein:

At least one of the driving device (23) and the control module (61) can be detachably arranged relative to the guide rail (34).
The portable vehicle lifting device according to claim 7 is characterized in that it further comprises a cover body (51), wherein the cover body (51) is provided with a first accommodating cavity (511) and a first opening (512) connecting the first accommodating cavity (511) with the outside, and the first opening (512) is provided at the bottom of the cover body (51);

and a support (25) of a driving unit (20) detachably connected to the cover body (51); wherein,

The control module (61) is arranged on the cover body (51) and is located in the first accommodating cavity (511);

The first connection structure (513) of the cover body (51) connected to the bracket (25) is arranged on the side wall of the cover body (51);

In particular, it further comprises a power supply (52), wherein the power supply (52) is plugged into the cover body (51), and when the power supply (52) and the cover body (51) are plugged into place, the power supply (52) is electrically connected to the control module (61);

In particular, the driving device (23) is detachably connected to the bracket (25), and/or the driving device (23) is detachably electrically connected to at least one of the control module (61) and the power supply (52). Preferably, the cover (51) is located above the driving device (23).
The portable vehicle lifting device according to claim 8, characterized in that the bracket (25) comprises An interconnected bottom plate (251) and top plate (252);

The transmission unit (24) of the driving unit (20) is arranged between the bottom plate (251) and the top plate (252);

The driving device (23) is detachably connected to the bottom plate (251) and is located below the bottom plate (251);

The transmission unit (24) and the top plate (252) are located in the first accommodating chamber (511);

The bottom plate (251) is provided with a first channel (2511) through which a connection line connecting the drive device (23) and the control module (61) or the power source (52) passes;

Particularly, avoidance structures (2522) are provided on both sides of the top plate (252) above the first channel (2511);

Furthermore, a third connection structure (2512) for connecting the bottom plate (251) and the driving device (23) is provided on the bottom plate (251) below the avoidance structure (2522);

Furthermore, in addition to the third connection structure (2512), the bottom plate (251) is also provided with a first positioning hole corresponding to a fourth connection structure (231) on the drive device (23) for connecting to the bottom plate (251);

Exemplarily, the transmission unit (24) is a gear pair installed between the bottom plate (251) and the top plate (252), the top plate (252) is provided with a second channel (2523) for a manual drive rod for manually driving the gear pair to rotate to pass through, and the bottom plate (251) is provided with a second positioning hole (2513) for positioning the manual drive rod.
The portable vehicle lifting device according to any one of claims 6 to 9, characterized in that the slider body (33) is pivotally connected to the first nut (21) around a first pivot axis (32), and the axis (321) of the first pivot axis (32) is perpendicular to the extension direction of the guide rail (34);

Preferably, the first nut (21) and the first pivot shaft (32) are both made of high-strength rigid materials, and the slider body (33) is made of a material with a lower hardness than the guide rail (34);

Furthermore, the slider body (33) is made of plastic or a light metal material, and/or at least one of the first nut (21) and the first pivot shaft (32) is a hollow structure.
The portable vehicle lifting device according to claim 10 is characterized in that the slider body (33) has two side surfaces (36) which are separated from each other and can cooperate with the guide rail (34) to achieve surface contact between the slider body (33) and the guide rail (34);

Furthermore, the slider body (33) is arranged on at least one side of the first nut (21), and at least two slider bodies (33) are provided on the same side of the first nut (21), and the slider bodies (33) on the same side are arranged in sequence along the extension direction of the guide rail (34); preferably, slider bodies (33) are provided on both opposite sides of the first nut (21).
A car lifting system, characterized in that it comprises a main control module (62) and four sets of portable car lifting devices according to any one of claims 7 to 11; wherein:

The main control module (62) is configured to control the start and stop of the control module (61).