Base for portable automobile lifting device and portable automobile lifting device

Abstract

The utility model discloses a base for a portable automobile lifting device and the portable automobile lifting device, and the base for the portable automobile lifting device comprises a connecting pipe; and two 'L'-shaped side pipes. Wherein the two side pipes are detachably connected with the two ends of the connecting pipe respectively, so that the U-shaped base is formed. As the [-shaped base is formed by detachably connecting the connecting pipe and the two L-shaped side pipes, the length of the connecting pipe can be smaller than that of the middle pipe of the [-shaped base, and when the portable automobile lifting device is not used, the side pipes can be detached from the connecting pipe, so that the portable automobile lifting device is convenient to use. When the split connecting pipe and the split side pipe are stacked together, the occupied width is small, so that the portable automobile lifting structure of the three-dimensional structure can form a two-dimensional structure after being disassembled, and the portable automobile lifting structure is convenient to store, for example, the portable automobile lifting structure is stored in a trunk of a car.

Description

Technical Field

[0001] This utility model relates to daily necessities, specifically to a base for a portable car lift device and a portable car lift device. Background Technology

[0002] As residents' living standards improve, more and more families are buying cars.

[0003] However, cars are special movable property with considerable value, and damage to them represents a significant loss for a family. In daily life, besides collisions, the most serious damage to cars is caused by flooding. Collision damage is considered man-made and can generally be avoided by paying attention to driving safety, while flooding damage is mainly caused by severe weather such as heavy rain.

[0004] To address the problem of cars being submerged in water, Chinese utility model patent CN219194365U discloses a portable car lifting mechanism, device, and system. However, this portable car lifting mechanism, device, and system occupies a large amount of space when not in use. Utility Model Content

[0005] To address at least one of the aforementioned problems, according to one aspect of the present invention, a base for a portable car lifting device is provided.

[0006] The base for the portable car lift includes a connecting tube and two L-shaped side tubes. The two side tubes are detachably connected to both ends of the connecting tube to form a U-shaped base. Because the U-shaped base is formed by the detachable connection of the connecting tube and the two L-shaped side tubes, the length of the connecting tube can be shorter than the length of the central tube of the U-shaped base. When the portable car lift is not in use, the side tubes can be detached from the connecting tube. The disassembled connecting tube and side tubes occupy less width when stacked together, allowing the three-dimensional portable car lift structure to form a two-dimensional structure after disassembly for easy storage, such as in the trunk of a car.

[0007] In some implementations, the connecting tube and the side tube are not rotatably connected. This ensures the stability of the base after the connecting tube and the side tube are connected.

[0008] In some implementations, the connecting pipe and the side pipe are non-rotatably connected via a splined shaft and splined groove. This allows for a detachable connection between the connecting pipe and the side pipe without the need for external tools, making operation convenient.

[0009] In some embodiments, the side tube includes a short side and a long side connected in sequence to form an "L" - shaped structure; the connecting tube is in a "one" - shaped form and the middle part thereof is used for connecting with the frame of the portable vehicle lifting device; wherein, the spline shaft is arranged at the free end of the short side, the spline groove is arranged at the free end of the connecting tube, and the sum of the lengths of the short side and the spline shaft is L1, the length from the free end of the connecting tube to the frame is L2, and the absolute value of the difference between L1 and L2 is less than 10 mm; or the spline shaft is arranged at the free end of the connecting tube, the spline groove is arranged at the free end of the short side, the length of the short side is L1`, and the length from the free end of the spline shaft to the frame is L2`, and the absolute value of the difference between L1` and L2` is less than 10 mm.

[0010] When the connecting tube is connected to the side tube, the short side of the "L" - shaped structure and the "one" - shaped connecting tube are on the same straight - line extension, so that after the two sides of the connecting tube are connected to the two side tubes, a "匚" - shaped structure is formed. After the side tube is disassembled from the connecting tube, the short side of the side tube can be placed parallel to the connecting tube, and the long side of the side tube can be placed parallel to the frame, so that the disassembled base and frame can be packaged in a cuboid container with the smallest volume.

[0011] In some embodiments, the length of the long side of the side tube of the base is less than the length L4 of the frame. Thus, after the side tube is disassembled from the connecting tube and the long side of the side tube is placed parallel to the frame, the disassembled base and frame can be packaged in a cuboid container with the smallest volume.

[0012] According to another aspect of the present application, a portable vehicle lifting device is provided, which includes the aforementioned base. Thus, when the portable vehicle lifting device is not in use, the side tube is disassembled from the connecting tube. When the disassembled connecting tube and side tube are stacked together, the occupied width is small, so that the three - dimensional portable vehicle lifting structure can form a two - dimensional structure after disassembly, and the disassembled base and frame can be packaged in a cuboid container with the smallest volume.

[0013] In some embodiments, the portable vehicle lifting device further includes a driving unit, a supporting part and a frame; the driving unit includes a driving mechanism arranged on the frame; the base is arranged on the frame; the driving mechanism is configured to be able to drive the supporting part to move relative to the base. Thus, the wheels of the vehicle can be placed on the supporting part. For example, four wheels are placed on four portable vehicle lifting devices. When the supporting part is driven by the driving mechanism to move upward relative to the base, the supporting part can带动车轮一起起升.

[0014] In some embodiments, the driving unit further includes a driving device and a transmission unit. The driving device drives the driving mechanism to drive the supporting part to move relative to the base through the transmission unit. The driving device drives the driving mechanism through the transmission unit, which can realize the flexibility of the installation positions of the driving mechanism and the driving device.

[0015] In some embodiments, when the drive mechanism moves the support in a vertical direction, the top of the drive mechanism is mounted on the frame via a load-bearing bearing capable of bearing weight along the drive direction. Therefore, when the drive mechanism drives an object in a vertical direction, the bending of the drive mechanism can be largely avoided because the top of the drive mechanism is equipped with a load-bearing bearing capable of bearing weight in the vertical direction.

[0016] In some embodiments, the portable car lift device further includes a bracket comprising a detachably connected top plate and a bottom plate; one of the bottom plate and the top plate is provided with a first protrusion, and the other is provided with a first groove adapted to the first protrusion, so as to assist the top plate and the bottom plate in quick positioning through the first protrusion and the first groove, facilitating the connection between the top plate and the bottom plate; and / or at least one of the bottom plate and the top plate is provided with a second protrusion, so as to improve the strength of the bottom plate and the top plate through the second protrusion.

[0017] In some embodiments, the drive device is disposed below the base plate, which has a second through hole through which the drive shaft of the drive device passes; a third protrusion is disposed above the base plate, around the outer periphery of the second through hole. This prevents water from flowing into the drive device through the second through hole from the outer periphery of the third protrusion.

[0018] In some embodiments, the drive mechanism includes a first lead screw and a first nut that are adapted to each other; the first lead screw is arranged vertically; a load-bearing bearing is disposed at the top of the first lead screw; the portable car lifting device also includes a rotary bearing disposed at the top of the first lead screw; the first lead screw is connected to the frame via at least one of the load-bearing bearing and the rotary bearing. Thus, the load-bearing bearing can prevent the first lead screw from bending when the first nut rotates relative to the first lead screw and moves an object along the extension direction of the first lead screw; moreover, since a rotary bearing is also disposed at the top of the first lead screw, smooth rotation of the first lead screw can be ensured.

[0019] In some embodiments, the portable car lifting device further includes mutually compatible guide rails and sliders; at least one of a load-bearing bearing and a rotating bearing is disposed on the first lead screw; the guide rails are disposed on or integrally formed on the frame; and the sliders are disposed on the first nut. Thus, the mutually compatible guide rails and sliders can assist the first nut in stably reciprocating along the extension direction of the first lead screw.

[0020] In some implementations, the rotary bearing is positioned below the load-bearing bearing. This allows the load-bearing bearing to support the weight of the first nut, which is fitted to the first lead screw, while also ensuring smooth rotation of the first lead screw.

[0021] In some embodiments, the portable car lifting device further includes a connecting block, through which the support is connected to the slider. The absolute value of the difference between the length L7 of the connecting block and the length L2 from the free end of the connecting tube to the frame is less than 10 mm. Therefore, when the support and connecting block are detached from the slider, the side of the support connected to the connecting block can be placed parallel to the frame. At this time, the connecting block and the connecting tube are parallel, and the free ends of the connecting tubes are nearly flush, so that the disassembled support and frame can be stacked together and packaged in a rectangular container with the smallest possible volume.

[0022] In some embodiments, the support includes a connecting part and contact parts detachably connected to both ends of the connecting part. The absolute value of the difference between twice the length L6 of the contact part and the length L4 of the frame is less than 10 mm. When the contact parts are detached from the connecting part, the two contact parts can be arranged in parallel with the frame in sequence, and the free ends of the two contact parts facing away from each other are nearly flush with the two free ends of the frame, so that the disassembled support and frame can be stacked together and packaged in a rectangular container with the smallest volume; and / or the length L5 of the connecting part is less than the length L4 of the frame. When the connecting part is detached from the slider, the frame can be set parallel to the connecting part, and the two free ends of the connecting part and the inner sides of the two free ends of the frame will not increase the length of the disassembled portable car lifting device. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a base for a portable car lifting device according to one embodiment of the present invention;

[0024] Figure 2 for Figure 1 The diagram shows the disassembled structure of the base for the portable car lifting device.

[0025] Figure 3 for Figure 2 A structural schematic diagram from another perspective of the disassembled state of the base used for the portable car lifting device;

[0026] Figure 4 This is a structural schematic diagram of the disassembled state of the base for a portable car lifting device according to another embodiment of the present invention.

[0027] Figure 5 This is a schematic diagram of the structure of a portable car lifting device according to one embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of one disassembly structure of a portable car lifting device according to one embodiment of the present invention.

[0029] Figure 7 for Figure 6A magnified structural diagram of point A of the portable car lift device shown;

[0030] Figure 8 for Figure 6 A schematic diagram of the portable car lifting device from another perspective;

[0031] Figure 9 for Figure 8 A magnified structural diagram of point B of the portable car lifting device shown.

[0032] Figure 10 for Figure 6 Another structural schematic diagram of the portable car lift device shown;

[0033] Figure 11 for Figure 6 A schematic diagram of another disassembly structure for the portable car lift device shown;

[0034] Figure 12 for Figure 5 A schematic diagram of the portable car lifting device from another perspective;

[0035] Figure 13 for Figure 12 A schematic diagram of the portable car lifting device along the CC direction;

[0036] Figure 14 for Figure 13 A magnified schematic diagram of the portable car lifting device at point D;

[0037] Figure 15 for Figure 5 The diagram shows the storage configuration of the portable car lift device after disassembly.

[0038] Reference numerals: 21, load-bearing bearing; 211, shaft ring; 212, seat ring; 213, first steel ball; 214, first cage; 22, rotary bearing; 221, inner ring; 222, outer ring; 223, second steel ball; 224, second cage; 30, drive unit; 31, drive mechanism; 311, first lead screw; 312, first nut; 313, frame; 314, guide rail; 315, slider; 3151, chamfer; 316, first step; 32, drive device; 33, transmission unit; 34, bracket; 341, base plate; 3411, first channel; 3412, first screw hole; 3413, first protrusion; 34 14. First protrusion; 3415. Second through hole; 3416. Third protrusion; 342. Top plate; 3421. First through hole; 3422. First recess; 3423. Second protrusion; 3424. Second protrusion; 35. Power supply; 41. Base; 411. Connecting pipe; 412. Side pipe; 4121. Short side; 4122. Long side; 413. Splined shaft; 414. Splined groove; 42. Support part; 421. Contact part; 4211. Insertion part; 4212. Blocking part; 422. Connecting part; 4221. First receiving cavity; 423. Pin; 43. Connecting block; 51. First detection module; 52. Second detection module. Detailed Implementation

[0039] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0040] It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising" or "including" include not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. The terminology used herein is generally that commonly used by those skilled in the art; in case of any discrepancy with commonly used terminology, the terminology used herein shall prevail.

[0041] Moreover, for ease of description, spatial relative terms such as "under", "below", "lower part", "above", "upper part", etc. can be used herein to describe the relationship between one element or component and another (or other) element or component as shown in the figure. Except for the orientation shown in the figure, spatial relative terms are intended to include different orientations of the device during use or operation. The device can be oriented in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptors used herein can be correspondingly interpreted in the same way.

[0042] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0043] Figures 1 to 3 Schematically shows a base 41 for a portable vehicle lifting device according to an embodiment of the present utility model.

[0044] As Figures 1 to 3 shown, the base 41 for the portable vehicle lifting device includes a connecting pipe 411 and side pipes 412; wherein, there is one connecting pipe 411 provided; there are two side pipes 412 provided, and the side pipes 412 are in an "L" - shaped structure; the two side pipes 412 are respectively detachably connected to both ends of the connecting pipe 411 to form a "匚" - shaped base 41.

[0045] Since the "匚" - shaped base 41 is formed by detachably connecting one connecting pipe 411 and two "L" - shaped side pipes 412, the length of the connecting pipe 411 can be shorter than the length of the middle pipe of the "匚" - shaped base 41. When the portable vehicle lifting device is not in use, the side pipes 412 can be detached from the connecting pipe 411. When the disassembled connecting pipe 411 and side pipes 412 are stacked together, the occupied width is smaller, so that the three - dimensional portable vehicle lifting structure can form a two - dimensional structure after disassembly, which is convenient for storage, such as being stored in the trunk of a small car. <00​​​​​​​As shown in the figure, the connecting pipe 411 and the side pipe 412 are non-rotatably connected through a spline shaft 413 and a spline groove 414. Thus, the connecting pipe 411 and the side pipe 412 can be detachably connected without the aid of external tools, and the operation is convenient. Preferably, the side pipe 412 includes a short side 4121 and a long side 4122 connected in sequence to form an "L" shaped structure; the connecting pipe 411 is in a "one" shape and the middle part thereof is used to be arranged on the frame 313 of the portable vehicle lifting device (for example, arranged by means of integral molding, machining or connection); wherein, the spline shaft 413 is arranged at the free end of the short side 4121, the spline groove 414 is arranged at the free end of the connecting pipe 411, and the sum of the lengths of the short side 4121 and the spline shaft 413 is L1, and the length from the free end of the connecting pipe 411 to the frame 313 is L2, and the absolute value of the difference between L1 and L2 is less than 10 mm. When the connecting pipe 411 is connected to the side pipe 412, the short side 4121 of the "L" shape and the "one" shape of the connecting pipe 411 are on the same straight line extension line, so that a "匚" shaped structure is formed after the two ends of the connecting pipe 411 are connected to the two side pipes 412. After the side pipe 412 is detached from the connecting pipe 411, the short side 4121 of the side pipe 412 can be placed parallel to the connecting pipe 411, and the long side 4122 of the side pipe 412 can be placed parallel to the frame 313 (as Figure 15 shown), so that the disassembled base 41 and the frame 313 can be packaged in a cuboid container with the smallest volume. Preferably, the connecting pipe 411 is perpendicular to the extending direction of the frame 313. In order to ensure that the base 41 can stably support when the frame 313 is in the vertical direction, the bottom surface of the base 41 is set as a plane. Preferably, the length L3 of the long side 4122 of the side pipe 412 is less than the length L4 of the frame 313 to ensure the compactness when the side pipe 412 is placed beside the frame 313 after being detached from the connecting pipe 411.

[0048] As another embodiment of the non-rotatable connection between the connecting pipe 411 and the side pipe 412, the connecting pipe 411 and the side pipe 412 are connected by a pin.

[0049] Figure 4 Schematically shows a base for a portable vehicle lifting device according to another embodiment of the present invention.

[0050] As Figure 4As shown, the main differences between the base of the portable vehicle lifting device of the present embodiment and the base of the portable vehicle lifting device of the previous embodiment are as follows: The spline shaft 413 is not provided at the free end of the short side 4121, but at the free end of the connecting pipe 411; the spline groove 414 is not provided at the free end of the connecting pipe 411, but at the free end of the short side 4121. The length of the short side 4121 is L1`, and the length from the free end of the spline shaft 414 to the frame 313 is L2`. The absolute value of the difference between L1` and L2` is less than 10 mm.

[0051] Thus, when the connecting pipe 411 is connected to the side pipe 412, a "C" - shaped structure can be formed; after the side pipe412 is detached from the connecting pipe 411, the short side 4121 of the side pipe 412 can be placed parallel to the connecting pipe 411, and the long side 4122 of the side pipe412 can be placed parallel to the frame 313 so that the width occupied when the detached base 41 and the frame 313 are stacked together is smaller, facilitating storage.

[0052] Figures 5 to 15 Schematically shows a portable vehicle lifting device according to an embodiment of the present invention.

[0053] As Figure 5 、 Figure 6 、 Figure 8 and Figure 10 shown, the portable vehicle lifting device includes the aforementioned base 41. Thus when the portable vehicle lifting device is not in use, the side pipe 412 is detached from the connecting pipe 411. When the detached connecting pipe 411 and side pipe 412 are stacked together,the width occupied is smaller so that the three - dimensional portable vehicle lifting structure can form a two - dimensional structure after disassembly, enabling the detached base 41 and frame 313 to be packaged in a cuboid container with the smallest volume.

[0054] In some preferred embodiments, as Figure 6 shown, the portable vehicle lifting device further includes a drive unit 30, a support portion 42 and a frame 313; the drive unit 32 includes a drive mechanism 31 provided on the frame 313; the base 41 is integrally formed, processed or connected to the frame 313; the drive mechanism 31 is arranged to be able to drive the support portion 42 to move relative to the base 41.

[0055] As one implementation manner of the drive mechanism 31, as Figure 5 and Figure 13As shown, the driving mechanism 31 includes a first screw rod 311 and a first nut 312 which are adapted to each other. The first screw rod 311 is rotatably arranged on the frame 313 around its own central axis; the supporting part 42 is arranged on the first nut 312. Thus, when the first nut 312 moves along the extending direction of the first screw rod 311, it can drive the supporting part 42 to move relative to the frame 313 and the base 41.

[0056] In some preferred embodiments, as Figure 5 shown, the base 41 is located outside the supporting part 42, so as to ensure the stability of the operation of the portable vehicle lifting mechanism while maintaining the compactness of the structure of the portable vehicle lifting mechanism.

[0057] As one of the preferred embodiments of the base 41 and the supporting part 42, as Figures 5 to 6 shown, at least one of the base 41 and the supporting part 42 is made of a hollow tube, and / or at least one of the base 41 and the supporting part 42 is integrally formed or processed with through holes, so as to further ensure the light weight of the portable vehicle lifting mechanism. Moreover, the through holes provided on the supporting part 42 can also play a role in increasing the frictional force of the contact surface.

[0058] As another preferred embodiment of the base 41 and the supporting part 42, as Figure 5 and Figure 6 shown, the height of the base 41 is greater than the height of the supporting part 42 to improve the grip of the base 41.

[0059] As a preferred embodiment of the supporting part 42, as Figure 5 shown, the supporting part 42 is arranged in a "C" - shaped structure to ensure the light weight of the portable vehicle lifting mechanism. Preferably, as Figure 5 shown, the openings of the "C" - shaped structure supporting part 42 and the base 41 both face the same side, preferably facing away from the frame 313. The "C" - shaped structure base 41 and supporting part 42 can be inserted on the front and rear sides of the wheels after the car is parked in place. When the supporting part 42 is driven by the driving mechanism 31 to make a lifting movement relative to the base 41, the supporting part 42 can drive the wheels to lift together, without the need to run the car onto the placed portable vehicle lifting mechanism, and the operation is more flexible and convenient.

[0060] Preferably, as Figure 5 、 Figure 6 、 Figure 8 and Figure 11As shown, the supporting part 42 includes a connecting part 422 and a contacting part 421. Among them, the connecting part 422 is detachably connected to the driving mechanism 31. When the driving mechanism 31 includes a guide rail 314 and a slider 315 that are adapted to each other, the connecting part 422 is detachably arranged relative to the slider 315; the contacting part 421 is used to contact the wheel. There are two contacting parts 421. The end parts of the two connecting parts 422 on the same side are detachably connected to both ends of the connecting part 422 respectively, so as to enclose a "C" - shaped structure through the connection between the connecting part 422 and the contacting part 421. Preferably, one end of the contacting part 421 is sleeved in the first accommodation cavity 4221 of the connecting part 422, and the contacting part 421 and the connecting part 422 are detachably connected by a pin 423. Thus, when the portable vehicle lifting mechanism is not in use, the contacting part 421 can be detached from the connecting part 422, and the side pipe 412 can also be detached from the connecting pipe 411, so that the three - dimensional portable vehicle lifting structure can form a two - dimensional structure after disassembly, which is convenient for storage, such as being stored in the trunk of a car; moreover, the contacting part 421 and the connecting part 422 can be detachably connected without the aid of external tools, and the operation is convenient; and, the contacting part 421 and the connecting part 422 are connected by a pin 423, which can ensure the stability of the formed supporting part 42 for supporting the wheel, and avoid the contacting part 421 falling off from the connecting part 422 during the lifting movement of the supporting part 42. Preferably, the first accommodation cavity 4221 is a through - hole; the contacting part 421 includes a plugging part 4211 adapted to the first accommodation cavity 4221, and a blocking part 4212 arranged at one end of the plugging part 4211. The diameter of the blocking part 4212 is greater than the diameter of the first accommodation cavity 4221, so that the blocking part 4212 can limit the limit position of the plugging part 4211 inserted into the first accommodation cavity 4221, which is convenient for realizing the connection between the contacting part 421 and the connecting part 422. Preferably, at least one of the length L5 of the connecting part 422 and the length L6 of the contacting part 421 is less than the length L4 of the frame 313, so as to ensure the compactness of the placement beside the frame 313 after the contacting part 421 is detached from the connecting part 422 and the connecting part 422 is detached from the slider 315.

[0061] In some preferred embodiments, such as Figure 5 As shown, the supporting part 42 is connected to the slider 315 through a connecting block 43, and one end of the slider 315 on the side connected to the connecting block 43, which is the same as the top end of the first screw rod 311, is provided with a first step 316, and the upper surface of the first step 316 is flush with the upper surface of the connecting block 43.

[0062] Such as Figure 10 、 Figure 13 and Figure 15As shown, preferably, the absolute value of the difference between the lengths L7 and L2 of the connecting block 43 is less than 10 mm. The absolute value of the difference between twice the length L6 of the contact portion 421 and the length L4 of the frame 313 is less than 10 mm; the length L5 of the connecting portion 422 is less than the length L4 of the frame 313. This is so that the disassembled support portion 42 and frame 313 can be stacked together and packaged in a rectangular container with the smallest possible volume. Preferably, the power supply 35 can also be removed from the frame 313 for storage.

[0063] Preferably, at least one of the four components—connecting pipe 411, side pipe 412, contact portion 421, and connecting portion 422—is a seamless steel pipe to ensure the strength of the connecting pipe 411, side pipe 412, contact portion 421, and connecting portion 422.

[0064] In some preferred embodiments, such as Figure 13 and Figure 14 As shown, the drive mechanism 31 is configured such that when its drive support 42 moves in the vertical direction, the top of the drive mechanism 31 is mounted on the frame 313 via a load-bearing bearing 21. Specifically, when the drive mechanism 31 includes a first lead screw 311 and a first nut 312 that are mutually adapted to each other, the load-bearing bearing 21 is configured such that when the first lead screw 311 is positioned in the vertical direction (e.g., ... Figure 13 and Figure 14 As shown), a load-bearing bearing 21 is sleeved on the top of the first lead screw 311. The top of the first lead screw 311 is mounted on the frame 313 via the load-bearing bearing 21, allowing the first lead screw 311 to rotate relative to the frame 313 around its central axis. The weight borne by the first lead screw 311 (including its own weight, the weight acting directly on the first lead screw 311, and the weight acting on the first lead screw 311 through the first nut 312, etc.) can be transferred to the frame 313 through the load-bearing bearing 21. Therefore, when the first lead screw 311 rotates around its central axis, causing the first nut 312 and the object on the first nut 312 to reciprocate along the extension direction of the central axis of the first lead screw 311, the load-bearing bearing 21, which can bear weight vertically, is provided at the top of the drive mechanism 31 when driving vertically, which can largely prevent the first lead screw 311 from bending. Preferably, as... Figure 12 and Figure 13 As shown, the bottom of the first lead screw 311 of the drive mechanism 31 is suspended relative to the frame 313. This prevents the first lead screw 311 from bending when the first nut 312 moves the object along its extension direction. Preferably, referring to... Figure 13As shown, the portable car lifting device also includes a second detection module 52; the second detection module 52 is located at the bottom of the frame 313 and at the bottom of the first lead screw 311. Therefore, the second detection module 52 can detect the lower limit position of the first nut 312 while preventing the first nut 312, slider 315, or support 42 from colliding with the second detection module 52, thus ensuring the accuracy of the detection by the second detection module 52.

[0065] As some specific embodiments of the load-bearing bearing 21, thrust ball bearings, cylindrical roller bearings, etc., can be used. These bearings can withstand the weight of the first lead screw 311 in the vertical direction when the first lead screw 311 is arranged in the vertical direction. Taking a thrust ball bearing as an example, such as... Figure 13 and Figure 14 As shown, the thrust ball bearing includes a shaft ring 211, a seat ring 212, first steel balls 213, and a first cage 214. A first lead screw 311 is mounted on the shaft ring 211. The first steel balls 213 are prevented from colliding with each other by the first cage 214 and are located between the shaft ring 211 and the seat ring 212. The seat ring 212 is mounted on a frame 313. When the first lead screw 311 is positioned vertically, the bottom of the seat ring 212 abuts against the frame 313. At this time, the shaft ring 211 is located above the seat ring 212. Therefore, the thrust ball bearing is an upper and lower structure arranged along the extension direction of the first lead screw 311, and the first lead screw 311 is connected to the frame 313 through the thrust ball bearing. In other words, the thrust ball bearing is configured such that when the drive mechanism 31 is driven vertically, it is positioned at the top of the drive mechanism 31 and can bear gravity along the driving direction of the drive mechanism 31.

[0066] In some preferred embodiments, such as Figure 5 , Figure 11 and Figure 13 As shown, the portable car lifting device also includes a guide rail 314 and a slider 315 that are adapted to each other. The guide rail 314 is disposed on or integrally formed on the frame 313, and the guide rail 314 is disposed along the extension direction of the first lead screw 311. The slider 315 is disposed on the first nut 312. Thus, the slider 315 is configured to restrict the rotation of the first nut 312 relative to the first lead screw 311. Therefore, when the first lead screw 311 rotates, the first nut 312 will reciprocate along the extension direction of the first lead screw 311. The direction of movement of the first nut 312 depends on the rotation direction of the first lead screw 311. The mutual adaptation of the guide rail 314 and the slider 315 can assist the first nut 312 in stably reciprocating along the extension direction of the first lead screw 311. Preferably, the slider 315 is integrally formed on the first nut 312. This ensures the stability of the slider 315.

[0067] In some preferred embodiments, such as Figure 5 and Figure 13As shown, the support portion 42 is mounted on the slider 315 of the drive mechanism 31; the base 41 and the slider 315 are mounted on the same side of the frame 313. Therefore, when the first lead screw 311 rotates relative to the frame 313 and the guide rail 314, the first nut 312, along with the slider 315 and the support portion 42, reciprocates along the extension direction of the first lead screw 311, ensuring that the support portion 42 can stably carry the animal body reciprocating along the extension direction of the first lead screw 311. Preferably, as... Figure 5 and Figure 13 As shown, the portable car lifting device also includes a first detection module 51. The first detection module 51 is located at the top of the frame 313 near the first lead screw 311 and is located on the side where the support part 42 is located. The first detection module 51 can detect the upper limit position of the first nut 312, and can also prevent the first nut 312, slider 315 or support part 42 from colliding with the first detection module 51, so as to ensure the accuracy of the detection by the first detection module 51.

[0068] As one embodiment of the first detection module 51 and the second detection module 52, an infrared sensor or a proximity switch may be used.

[0069] In some preferred embodiments, such as Figure 13 and Figure 14 As shown, the portable car lifting device also includes a rotary bearing 22, which is disposed at the top of the first lead screw 311. The first lead screw 311 is connected to the frame 212 via at least one of the load-bearing bearing 21 and the rotary bearing 22. Since the rotary bearing 22 is also disposed at the top of the first lead screw 311, smooth rotation of the first lead screw 22 can be ensured. Preferably, the rotary bearing 22 is disposed below the load-bearing bearing 21. Thus, the load-bearing bearing 21 can bear the weight of the first nut 312 adapted to the first lead screw 311, and the rotary bearing 22 can ensure smooth rotation of the first lead screw 311. Moreover, since the weight acting on the first lead screw 311 (including the weight acting directly and indirectly on the first lead screw 311) is applied to the frame 313 through the load-bearing bearing 21 and does not act on the rotary bearing 22, it can be ensured that the first lead screw 311 can rotate relative to the frame 313 around its own central axis under the action of the rotary bearing 22.

[0070] As some embodiments of the rotating bearing 22, such as Figure 13 and Figure 14As shown, ball bearings, roller bearings, etc., can be used. The first lead screw 311 is mounted on the frame 313 via these bearings, ensuring that the first lead screw 311 rotates relative to the frame 313 around its own central axis. Taking a ball bearing as an example, the ball bearing includes an inner ring 221, an outer ring 222, a second steel ball 223, and a second cage 224; the inner ring 221 is mounted on the first lead screw 311; the second steel ball 223 is prevented from colliding with each other by the second cage 224 and is located between the inner ring 221 and the outer ring 222; the outer ring 222 is mounted on the frame 313; the inner ring 221 is fitted outside the first lead screw 311; the outer ring 222 is fitted outside the inner ring 221; the first lead screw 311, the inner ring 221, and the outer ring 222 form a central circle structure, that is, the ball bearing is an inner and outer structure arranged radially on the first lead screw 311. This ensures that the first lead screw 311 rotates along the field. The ball bearing is configured such that when the drive mechanism 31 is driven in the vertical direction, it does not bear the weight of the drive mechanism 31 or the weight of the frame 313.

[0071] In some preferred embodiments, such as Figure 6 As shown, the portable car lifting device also includes at least one of a drive device 32 and a transmission unit 33. The drive device 32 drives the drive mechanism 31 through the transmission unit 33, causing the support part 42 to move relative to the base 41. The drive device 32 drives the drive mechanism 31 through the transmission unit 33, which allows for flexibility in the placement of the drive mechanism 31 and the drive device 32. As one embodiment of the drive device 32, the drive device 32 is a rotary motor capable of driving the first lead screw 311 to rotate around its own central axis. As one embodiment of the transmission unit 33, the transmission unit 33 is a gear pair capable of transmitting the power of the drive device 32 to the first lead screw 311 to drive the first lead screw 311 to rotate around its own central axis, that is, the drive device 32 drives the first lead screw 311 to rotate through the transmission unit 33.

[0072] In order to ensure the smooth operation of the transmission unit 33 while maintaining the lightweight design of the drive unit 30, such as Figures 6 to 9As shown, the portable car lifting device also includes a bracket 34, which includes a base plate 341 and a top plate 342 connected to each other; a transmission unit 33 is disposed between the base plate 341 and the top plate 342; a drive device 32 is detachably connected to the base plate 341 and located below the base plate 341; the base plate 341 has an integrally formed or machined first channel 3411 through which the connection line connecting the drive device 32 to the control module or power supply 35 passes. For example, the first channel 3411 is an integrally formed or machined through hole on the base plate 341, thereby preventing the transmission unit 33 and the connection line from being interfered with during operation by the bracket. As one connection method between the base plate 341 and the top plate 342, the base plate 341 and the top plate 342 are detachably connected. For example, the base plate 341 and the top plate 342 are detachably connected by screws. For example, the base plate 341 is machined with a first screw hole 3412, and the top plate 342 is integrally formed or machined with a first through hole 3421 that matches the first screw hole 3412 and allows the screw to pass through. Preferably, the outer circumference of the first screw hole 3412 of the base plate 341 is integrally formed, machined, or connected with a first protrusion 3413, and the outer circumference of the first through hole 3421 of the top plate 342 is integrally formed or machined with a first countersunk groove 3422 that corresponds to and matches the first protrusion 3413, so as to assist in the alignment of the positions of the first screw hole 3412 and the first through hole 3421. Preferably, a first protrusion 3414 is integrally formed, machined, or connected to the base plate 341, and / or a second protrusion 3423 is integrally formed or machined on the top plate 342, so that after the base plate 341 and the top plate 342 are connected, the first protrusion 3414 and / or the second protrusion 3423 create a gap between the top plate 342 and the base plate 341, forming a space to accommodate the transmission unit 33; at the same time, at least one of the base plate 341 and the top plate 342 is a plate-like structure to achieve lightweight support. More preferably, at least one of the first screw hole 3412 and the first protrusion 3413 is provided on the first protrusion 3414, and / or at least one of the first through hole 3421 and the first countersunk groove 3422 is provided on the second protrusion 3423 to improve the connection strength of the screw connection. Preferably, at least one of the top plate 342 and the bottom plate 341 has a second protrusion 3424 on its surface facing each other to improve the strength of the top plate 342 and the bottom plate 341. More preferably, the second protrusion 3424 is a crisscrossing ridge to form a reinforcing rib on the top plate 342 or the bottom plate 341. In some preferred embodiments, when the drive device 32 is installed below the bottom plate 341 and the drive shaft of the drive device 32 passes through the bottom plate 341 through the second through hole 3415, a third protrusion 3416 is integrally formed or machined on the upper part of the bottom plate 341. The third protrusion 3416 is disposed on the outer periphery of the second through hole 3415 to prevent water from flowing into the drive device 32 from the outer periphery of the third protrusion 3416 through the second through hole 3415.

[0073] In some preferred embodiments, such as Figure 11 As shown, the guide rail 314 is made of channel steel, and the slider 315 is fitted with the guide rail 314 in an "I" shape to prevent the slider 315 from falling off the guide rail 314 when it moves along the extension direction of the guide rail 314. Preferably, one end of the "I" shaped slider 315 along the extension direction of the guide rail 314 is provided with a chamfer 3151, thereby providing guidance for the fit between the slider 315 and the guide rail 314.

[0074] Other structures in this application may refer to the portable car lifting mechanism, device and system with announcement number CN117902511A, the slider module for lifting mechanism and portable car lifting mechanism using the same with announcement number CN219279359U, the portable car lifting mechanism, device and system with announcement number CN219194365U, and the drive module for car lifting mechanism and car lifting mechanism with announcement number CN219078989U.

[0075] In this invention, the connection or installation is a fixed connection unless otherwise specified. A fixed connection can be implemented as a detachable or non-detachable connection commonly used in the prior art. A detachable connection can be implemented using existing technologies, such as threaded connections or keyed connections. A non-detachable connection can also be implemented using existing technologies, such as welding or adhesive bonding.

[0076] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A base for a portable automotive lift, characterized in that, Comprising: A connecting pipe (411); And two "L"-shaped side pipes (412); wherein, The two side pipes (412) are respectively detachably connected to both ends of the connecting pipe (411) to form a "U"-shaped base (41).

2. The base of claim 1, wherein, The connecting pipe (411) and the side pipe (412) are non-rotatably connected.

3. The base of claim 2, wherein, The connecting pipe (411) and the side pipe (412) are non-rotatably connected through a spline shaft (413) and a spline groove (414).

4. The base of claim 3, wherein, The side pipe (412) includes a short side (4121) and a long side (4122) connected in sequence to form an "L"-shaped structure; The connecting pipe (411) is in a "one"-shaped and its middle part is used for connecting to the frame (313) of the portable vehicle lifting device; wherein, The spline shaft (413) is arranged at the free end of the short side (4121), the spline groove (414) is arranged at the free end of the connecting pipe (411), and the sum of the length of the short side (4121) and the spline shaft (413) is L1, the length from the free end of the connecting pipe (411) to the frame (313) is L2, and the absolute value of the difference between L1 and L2 is less than 10 mm; and / or The length L3 of the long side (4122) of the side pipe (412) of the base (41) is less than the length L4 of the frame (313).

5. A portable vehicle lift characterized by, Comprising the base according to any one of claims 1 to 4; It further includes a driving unit (30), a supporting part (42) and a frame (313); The driving unit (30) includes a driving mechanism (31) arranged on the frame (313); The base (41) is arranged on the frame (313); The driving mechanism (31) is arranged to be able to drive the supporting part (42) to move relative to the base (41).

6. The portable vehicle lifting device of claim 5, wherein, The driving unit (30) further includes a driving device (32) and a transmission unit (33), and the driving device (32) drives the driving mechanism (31) through the transmission unit (33) to drive the supporting part (42) to move relative to the base (41); and / or When the driving mechanism (31) drives the supporting part (42) to move in the vertical direction, the top of the driving mechanism (31) is arranged on the frame (313) through a bearing (21) capable of bearing gravity along the driving direction of the driving mechanism (31).

7. The portable vehicle lifting device of claim 6, wherein, It further includes a bracket (34), and the bracket (34) includes a detachable top plate (342) and a bottom plate (341); One of the bottom plate (341) and the top plate (342) is provided with a first protrusion (3413), and the other is provided with a first groove adapted to the first protrusion (3413); and / or At least one of the bottom plate (341) and the top plate (342) is provided with a second protrusion (3424).

8. The portable vehicle lifting device of claim 7, wherein, The driving device (32) is arranged below the bottom plate (341), the bottom plate (341) is provided with a second through hole (3415) for the driving shaft of the driving device (32) to pass through; the top of the bottom plate (341) is provided with a third protrusion (3416), and the third protrusion (3416) is arranged at the outer periphery of the second through hole (3415); and / or The driving mechanism (31) comprises a first lead screw (311) and a first nut (312) which are matched with each other; The first lead screw (311) is arranged in a vertical direction; The load bearing (21) is arranged at the top of the first lead screw (311); Further comprising a rotary bearing (22), the rotary bearing (22) is arranged at the top of the first lead screw (311); The first lead screw (311) is connected with the rack (313) through at least one of the load bearing (21) and the rotary bearing (22).

9. The portable vehicle lifting device of claim 8, wherein, Further comprising a guide rail (314) and a sliding block (315) which are matched with each other; at least one of the load bearing (21) and the rotary bearing (22) is arranged on the first lead screw (311); The guide rail (314) is arranged on or integrally formed on the rack (313); The sliding block (315) is arranged on the first nut (312); and / or The rotary bearing (22) is arranged below the load bearing (21).

10. The portable vehicle lifting device of claim 9, wherein, Further comprising a connecting block (43), the supporting part (42) is connected with the sliding block (315) through the connecting block (43), the absolute value of the difference between the length L7 of the connecting block (43) and the length L2 from the free end of the connecting pipe (411) to the rack (313) is less than 10mm; and / or The supporting part (42) comprises a connecting part (422) and a contact part (421) which is detachably connected at both ends of the connecting part (422), the absolute value of the difference between twice the length L6 of the contact part (421) and the length L4 of the rack (313) is less than 10mm, and the length L5 of the connecting part (422) is less than the length L4 of the rack (313).

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