Mounting structure for driving mechanism, driving mechanism and portable automobile lifting device

Abstract

The utility model discloses a mounting structure for a driving mechanism, the driving mechanism and a portable automobile lifting device, and the mounting structure for the driving mechanism comprises a load bearing which is arranged at the top of the driving mechanism when the driving mechanism is driven along the vertical direction and can bear gravity along the driving direction of the driving mechanism. Therefore, when the driving mechanism drives the object to move in the vertical direction, due to the fact that the load-bearing bearing capable of bearing gravity in the vertical direction is arranged at the top of the driving mechanism when the driving mechanism drives the object in the vertical direction, bending of the driving mechanism can be avoided to a large extent.

Description

Technical Field

[0001] This utility model relates to everyday household items, specifically to an installation structure for a drive mechanism, a drive mechanism, and a portable car lifting device. Background Technology

[0002] For drive mechanisms set in a vertical direction, especially when they also carry offset loads (i.e., the loads they carry are only distributed on one side), such drive mechanisms are prone to bending after long-term operation. This can lead to noise during the operation of the drive mechanism, and in severe cases, damage to the drive mechanism. Utility Model Content

[0003] To solve at least one of the above problems, according to one aspect of the present invention, a mounting structure for a drive mechanism is provided.

[0004] The mounting structure for the drive mechanism includes a load-bearing bearing located at the top of the drive mechanism when it is driven vertically, capable of bearing gravity along the driving direction of the drive mechanism. Therefore, when the drive mechanism drives an object to move vertically, the presence of a load-bearing bearing at the top of the drive mechanism when it is driven vertically significantly reduces the risk of bending of the drive mechanism.

[0005] In some embodiments, the drive mechanism includes a first lead screw and a first nut that are mutually 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 mounting structure for the drive mechanism also includes a rotary bearing disposed at the top of the first lead screw; the first lead screw is connected to the frame via the load-bearing bearing and / or 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 the 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.

[0006] 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.

[0007] In some embodiments, the load-bearing bearings are arranged in an upper and lower structure along the extension direction of the first lead screw, so as to withstand the gravity along the extension direction of the first lead screw.

[0008] In some embodiments, the rotary bearings are internal and external structures arranged along the radial direction of the first lead screw to ensure that the first lead screw rotates along the field.

[0009] According to another aspect of this utility model, a drive mechanism is provided, which includes the aforementioned mounting structure for the drive mechanism. Therefore, when the drive mechanism drives an object to move in the vertical direction, the bending of the drive mechanism can be largely avoided because a load-bearing bearing capable of bearing gravity in the vertical direction is provided at the top of the drive mechanism when it is driven vertically.

[0010] In some embodiments, the drive mechanism further includes a first lead screw and a first nut that are adapted to each other; a frame; and a guide rail and a slider that are adapted to each other; a mounting structure for the drive mechanism is disposed on the first lead screw; the guide rail is disposed on or integrally formed on the frame and is disposed along the extension direction of the first lead screw; and the slider is disposed on the first nut. Thus, the first nut can be stably reciprocated along the extension direction of the first lead screw by means of the adapted guide rail and slider.

[0011] In some implementations, the slider is integrally formed onto the first nut. This ensures the stability of the slider.

[0012] According to another aspect of the present invention, a portable car lifting device is provided, which includes the aforementioned drive mechanism. Therefore, when the portable car lifting device lifts a car under the drive of the drive mechanism, the bending of the drive mechanism can be largely avoided because the top of the drive mechanism, which is equipped with a load-bearing bearing capable of bearing gravity in the vertical direction, is located therein.

[0013] In some embodiments, the portable car lifting device further includes a base and a support; the base is mounted on the frame of the drive mechanism; the support is mounted on the slider of the drive mechanism; the base and the slider are located on the same side of the frame. Thus, driven by the first nut and the slider connected to the first nut, the support can stably carry the object back and forth along the extension direction of the first lead screw.

[0014] In some embodiments, the bottom of the first lead screw of the drive mechanism is suspended relative to the frame of the drive mechanism. This prevents the first lead screw from bending when the first nut moves the object along its extension direction.

[0015] In some embodiments, the portable car lifting device further includes at least one of a first detection module and a second detection module; the first detection module is located on the frame near the top of the first lead screw and is located on the side where the support is located; the second detection module is located at the bottom of the frame and at the bottom of the first lead screw.

[0016] Therefore, the upper and lower limit positions of the first nut can be detected by the first detection module and the second detection module, while avoiding collisions between the first nut, slider, or support with the first detection module and the second detection module, thus ensuring the accuracy of the detection by the first detection module and the second detection module.

[0017] In some embodiments, the support is connected to the slider via a connecting block, and the end of the slider connected to the connecting block, which is the same as the top end of the first lead screw, is provided with a first step, and the upper surface of the first step is flush with the upper surface of the connecting block. This allows for a more compact connection between the slider and the connecting block. Attached Figure Description

[0018] Figure 1 This is a cross-sectional schematic diagram of the mounting structure for the drive mechanism according to one embodiment of the present invention.

[0019] Figure 2 for Figure 1 The enlarged structural diagram of point A of the mounting structure used for the drive mechanism is shown.

[0020] Figure 3 This is a schematic diagram of the drive mechanism according to one embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of a portable car lifting device according to one embodiment of the present invention;

[0022] Figure 5 for Figure 4 A schematic diagram of the portable car lifting device from another perspective;

[0023] Figure 6 for Figure 5 A schematic diagram of the portable car lifting device along the BB direction;

[0024] Figure 7 This is a schematic diagram of one disassembly structure of a portable car lifting device according to one embodiment of the present invention.

[0025] Figure 8 for Figure 7 A magnified structural diagram of point C of the portable car lifting device shown.

[0026] Figure 9 for Figure 7 A schematic diagram of the portable car lifting device from another perspective;

[0027] Figure 10 for Figure 9 A magnified schematic diagram of the portable car lifting device at point D;

[0028] Figure 11 for Figure 7 Another structural schematic diagram of the portable car lift device shown;

[0029] Figure 12 for Figure 7 A schematic diagram of another disassembly structure for the portable car lift device shown;

[0030] Figure 13 for Figure 4 The diagram shows the storage configuration of the portable car lift device after disassembly.

[0031] 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

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0033] 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.

[0034] Furthermore, for ease of description, spatial relative terms such as “below,” “under,” “lower,” “above,” and “upper” may be used herein to describe the relationship between one element or component and another (or other) element or component as shown in the figure. In addition to the orientation shown in the figure, spatial relative terms are intended to include different orientations of the device during use or operation. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptors used herein can be interpreted accordingly.

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0036] Figures 1 to 2 The mounting structure for the drive mechanism 31 according to one embodiment of the present invention is shown schematically.

[0037] like Figure 1 and Figure 2 As shown, the mounting structure for the drive mechanism 31 includes a load-bearing bearing 21. 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 arranged in the vertical direction (e.g., ...), ... Figure 1 and Figure 2As shown, the load-bearing bearing 21 is sleeved on the top of the first lead screw 311. The drive mechanism 31 also includes a frame 313. The top of the first lead screw 311 is mounted on the frame 313 via the load-bearing bearing 21, so that the first lead screw 311 can rotate relative to the frame 313 around its central axis. The gravity borne by the first lead screw 311 (including the gravity borne by the first lead screw 311 itself, the gravity acting directly on the first lead screw 311, and the gravity acting on the first lead screw 311 through the first nut 312, etc.) can be applied to the frame 313 through the load-bearing bearing 21.

[0038] 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 1 and Figure 2 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.

[0039] When the first lead screw 311 rotates around its own central axis, driving 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, since the top of the drive mechanism 31 is provided with a load-bearing bearing 21 that can bear the weight in the vertical direction when it is driven in the vertical direction, the bending of the first lead screw 311 can be avoided to a large extent.

[0040] In some preferred embodiments, reference continues to be made to Figure 1 and Figure 2As shown, the mounting structure for the drive mechanism 31 also includes a rotary bearing 22, and the first lead screw 311 is connected to the frame 313 via the rotary bearing 22 and / or the load-bearing bearing 21. Thus, when the first nut 312 rotates relative to the first lead screw 311 and moves the object along the extension direction of the first lead screw 311, the load-bearing bearing 21 prevents the first lead screw 311 from bending; and the rotary bearing 22 ensures smooth rotation of the first lead screw 311. Preferably, the rotary bearing 22 is located below the load-bearing bearing 21. Therefore, the load-bearing bearing 21 can bear the weight of the first nut 312 that is compatible with the first lead screw 311, and the rotating bearing 22 can ensure that the first lead screw 311 can rotate smoothly. 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 will not act on the rotating 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 rotating bearing 22.

[0041] As some embodiments of the rotating bearing 22, 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 ground. 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.

[0042] In some preferred embodiments, reference continues to be made to Figure 1 and Figure 2 As shown, the drive mechanism 31 also includes a guide rail 314 and a slider 315 that are adapted to each other. The guide rail 314 is integrally formed, machined, or connected to the frame 313 and is arranged along the extension direction of the first lead screw 311. The slider 315 is disposed on the first nut 312. The slider 315 is configured to restrict the rotation of the first nut 312 relative to the first lead screw 311, so that when the first lead screw 311 rotates, the first nut 312 will reciprocate along the extension direction of the first lead screw 311, and the direction of movement of the first nut 312 depends on the rotation direction of the first lead screw 311.

[0043] Figure 3 The drive mechanism 31 according to one embodiment of the present invention is shown schematically.

[0044] like Figure 3 As shown, the drive mechanism 31 includes the aforementioned mounting structure for the drive mechanism 31. As one embodiment of the drive mechanism 31, such as... Figure 3 As shown, the drive mechanism 31, in addition to the aforementioned mounting structure for the drive mechanism 31, also includes a first lead screw 311 and a first nut 312 that are mutually adapted; a frame 313; and a guide rail 314 and a slider 315 that are mutually adapted. The mounting structure for the drive mechanism 31 is disposed on the first lead screw 311; 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; and the mounting structure for the drive mechanism 31 is disposed at the top when the first lead screw 311 is disposed in the vertical direction. Thus, the first nut 312 can be stably reciprocated along the extension direction of the first lead screw 311 by means of the mutually adapted guide rail 314 and slider 315; when the drive mechanism 31 drives the object to move in the vertical direction, since the top of the drive mechanism 31 when it is driven in the vertical direction is provided with a load-bearing bearing 21 that can bear the weight in the vertical direction, the bending of the drive mechanism 31 can be largely avoided.

[0045] In some embodiments, the slider 315 is integrally formed on the first nut 312. This ensures the stability of the slider 315.

[0046] Figures 4 to 13 A portable car lift device according to one embodiment of the present invention is shown schematically.

[0047] like Figures 4 to 13 As shown, the portable car lift includes the aforementioned drive mechanism 31. Therefore, when the portable car lift lifts the car under the drive of the drive mechanism 31, the drive mechanism 31 is equipped with a load-bearing bearing 21 at its top when driven vertically, which can bear the weight in the vertical direction, thus greatly preventing the drive mechanism 31 from bending.

[0048] In some preferred embodiments, such as Figures 4 to 6 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 4 and Figure 6As 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.

[0049] In some preferred embodiments, such as Figures 4 to 12 As shown, the portable car lifting device also includes a base 41 and a support 42; the base 41 is mounted on the frame 313 of the drive mechanism 31; the support 42 is mounted on the slider 315 of the drive mechanism 31; the base 41 and the slider 315 are located on the same side of the frame 313. Thus, 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 42, reciprocates along the extension direction of the first lead screw 311, ensuring that the support 42 can stably carry the object reciprocating along the extension direction of the first lead screw 311. Preferably, as... Figure 4 and Figure 6 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.

[0050] In some preferred embodiments, such as Figure 4 As shown, the support part 42 is connected to the slider 315 via the connecting block 43, and the end of the slider 315 connected to the connecting block 43 is provided with the same top end as the first lead screw 311, having a first step 316, and the upper surface of the first step 316 is flush with the upper surface of the connecting block 43.

[0051] As one preferred embodiment of the base 41, such as Figure 7 , Figure 9 and Figure 11As shown, the base 41 includes a connecting pipe 411 and a side pipe 412; the connecting pipe 411 is integrally formed, processed or connected to the frame 313, and is perpendicular to the extending direction of the frame 313; the side pipe 412 is detachably connected to the connecting pipe 411 to form a "C" - shaped structure. 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 connecting pipe 411 and the side pipe 412 are non - rotatably detachably connected. For example, a spline shaft 413 is provided on one of the connecting pipe 411 and the side pipe 412, and a spline groove 414 adapted to the spline shaft 413 is provided on the other. 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, in order to enable the connecting pipe 411 and the side pipe 412 to be packaged in a cuboid container with the smallest volume after disassembly, the connecting pipe 411 and the side pipe 412 are arranged such that the connecting pipe 411 is integrally provided on the frame 313 and is in a "one" - shaped; the side pipe 412 includes a short side 4121 and a long side 4122 connected in sequence, together forming an "L" - shaped, and when the connecting pipe 411 is connected to the side pipe 412, the short side 4121 of the "L" - shaped is on the same straight - line extension as the "one" - shaped of the connecting pipe 411, so that an "C" - 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 13 shown), so that the disassembled base 41 and frame 313 can be packaged in a cuboid container with the smallest volume. Preferably, the spline shaft 413 is provided on the short side 4121 of the side pipe 412. The sum of the length of the short side 4121 of the side pipe 412 and the length of the spline shaft 413 is L1, and the distance from the free end of the connecting pipe 411 to the frame 313 is L2. The absolute value of the difference between L1 and L2 is less than 10 mm to ensure the compactness when the side pipe 412 is placed beside the frame 313 after being detached from the connecting pipe 411. 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.

[0052] In some preferred embodiments, as Figure 4 and 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.

[0053] As one of the preferred embodiments of the base 41 and the supporting part 42, as Figures 4 to 7As shown, at least one of the base 41 and the support portion 42 is provided as a hollow tube body, and / or at least one of the base 41 and the support portion 42 is integrally formed or processed with through holes to further ensure the light weight of the portable vehicle lifting mechanism. Moreover, the through holes provided on the support portion 42 can also play a role in increasing the friction force of the contact surface.

[0054] As another preferred embodiment of the base 41 and the support portion 42, as Figure 5 and Figure 6 shown, the height of the base 41 is greater than the height of the support portion 42 to improve the grip of the base 41.

[0055] As a preferred embodiment of the support portion 42, as Figure 4 shown, the support portion 42 is arranged in a "C" - shaped structure to ensure the light weight of the portable vehicle lifting mechanism. Preferably, as Figure 4 shown, the openings of the "C" - shaped structure support portion 42 and the base 41 both face the same side, preferably facing away from the frame 313. The "C" - shaped structure base 41 and support portion 42 can be inserted into the front and rear sides of the wheel after the car is parked in place. When the support portion 42 is driven by the driving mechanism 31 to make a lifting movement relative to the base 41, the support portion 42 can带动 the wheel一起起升, without the need to move the car onto the placed portable vehicle lifting mechanism, and the operation is more flexible and convenient.

[0056] Preferably, as Figure 4 、 Figure 5 and Figure 7As shown, the support portion 42 includes a connecting portion 422 and a contact portion 421. Among them, the connecting portion 422 is detachably connected to the driving mechanism 31. When the driving mechanism 31 includes a mutually adapted guide rail 314 and a slider 315, the connecting portion 422 is detachably arranged relative to the slider 315; the contact portion 421 is used to contact the wheel. There are two contact portions 421. The end portions of the two connecting portions 422 on the same side are respectively detachably connected to both ends of the connecting portion 422, so as to enclose a "C" - shaped structure through the connection between the connecting portion 422 and the contact portion 421. Preferably, one end of the contact portion 421 is sleeved in the first accommodation cavity 4221 of the connecting portion 422, and the contact portion 421 and the connecting portion 422 are detachably connected by a pin 423. Thus, when the portable vehicle lifting mechanism is not in use, the contact portion 421 can be detached from the connecting portion 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 storing in the trunk of a car; moreover, the contact portion 421 and the connecting portion 422 can be detachably connected without the aid of external tools, and the operation is convenient; and, the contact portion 421 and the connecting portion 422 are connected by a pin 423, which can ensure the stability of the support portion 42 for supporting the wheel, and avoid the contact portion 421 falling off from the connecting portion 422 during the lifting movement of the support portion 42. Preferably, the first accommodation cavity 4221 is a through - hole; the contact portion 421 includes a plugging portion 4211 adapted to the first accommodation cavity 4221, and a blocking portion 4212 provided at one end of the plugging portion 4211. The diameter of the blocking portion 4212 is greater than the diameter of the first accommodation cavity 4221, so that the blocking portion 4212 can limit the limit position of the plugging portion 4211 inserted into the first accommodation cavity 4221, which is convenient for realizing the connection between the contact portion 421 and the connecting portion 422. Preferably, at least one of the length L5 of the connecting portion 422 and the length L6 of the contact portion 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 contact portion 421 is detached from the connecting portion 422 and the connecting portion 422 is detached from the slider 315. As Figure 6 , Figure 11 and Figure 13 shown, preferably, the absolute value of the difference between the length L7 of the connecting block 43 and L2 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. So that the disassembled support portion 42 and the frame 313 can be stacked together and packaged in a cuboid container with the smallest volume. Preferably, the power supply 35 can also be removed from the frame 313 for storage.

[0057] 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.

[0058] 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.

[0059] In some preferred embodiments, such as Figures 6 to 8 As shown, the portable car lifting device also includes at least one of a drive device 32 and a transmission unit 33. In one embodiment of the drive device 32, the drive device 32 is a rotary motor capable of driving a first lead screw 311 to rotate about its own central axis. In one embodiment of the transmission unit 33, the transmission unit 33 is a gear pair capable of transmitting power from the drive device 32 to the first lead screw 311 to drive the first lead screw 311 to rotate about its own central axis; that is, the drive device 32 drives the first lead screw 311 to rotate through the transmission unit 33.

[0060] The drive mechanism 31, drive device 32, and transmission unit 33 constitute a drive unit 30 according to an embodiment of this application, capable of driving the support portion 42 to move relative to the base 41. To ensure smooth operation of the transmission unit 33 while maintaining the lightweight design of the drive unit 30, such as... Figures 7 to 10As 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.

[0061] In some preferred embodiments, such as Figure 12 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.

[0062] 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.

[0063] 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.

[0064] 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 mounting structure for a drive mechanism, characterized by, The load bearing bearing (21) is arranged at the top of the driving mechanism (31) in the vertical direction and can bear the gravity in the driving direction of the driving mechanism (31).

2. The mounting structure for a drive mechanism according to claim 1, characterized by The driving mechanism (31) comprises a first screw rod (311) and a first nut (312) which are matched with each other. The first screw rod (311) is arranged in the vertical direction. The load bearing bearing (21) is arranged at the top of the first screw rod (311). A rotating bearing (22) is further arranged at the top of the first screw rod (311). The first screw rod (311) is connected with the rack (313) through the load bearing bearing (21) and / or the rotating bearing (22).

3. The mounting structure for a drive mechanism according to claim 2, characterized by The rotating bearing (22) is arranged below the load bearing bearing (21).

4. The mounting structure for a drive mechanism according to claim 2 or 3, characterized in that, The load bearing bearing (21) is arranged in the up-down structure along the extension direction of the first screw rod (311); and / or The rotating bearing (22) is arranged in the inner-outer structure along the radial direction of the first screw rod (311).

5. Drive mechanism, characterized in that The mounting structure for the driving mechanism according to any one of claims 1 to 4 is provided.

6. The drive mechanism of claim 5, wherein, Further comprising: a first screw rod (311) and a first nut (312) which are matched with each other; a rack (313); and a guide rail (314) and a sliding block (315) which are matched with each other; The mounting structure for the driving mechanism (31) is arranged on the first screw rod (311). The guide rail (314) is arranged on or integrally formed on the rack (313), and the guide rail (314) is arranged along the extension direction of the first screw rod (311). The sliding block (315) is arranged on the first nut (312).

7. The drive mechanism of claim 6, wherein, The sliding block (315) is integrally formed on the first nut (312).

8. A portable vehicle lift characterized by, The driving mechanism according to any one of claims 5 to 7 is provided.

9. The portable vehicle lifting device of claim 8, wherein, Further comprising a base (41) and a supporting part (42); The base (41) is arranged on the rack (313) of the driving mechanism (31); The supporting part (42) is arranged on the sliding block (315) of the driving mechanism (31); The base (41) and the supporting part (42) are arranged on the same side of the rack (313); and / or The bottom of the first screw rod (311) of the driving mechanism (31) is arranged in suspension relative to the rack (313) of the driving mechanism (31).

10. The portable vehicle lifting device of claim 9, wherein, Further comprising at least one of a first detection module (51) and a second detection module (52); The first detection module (51) is arranged at the position close to the top end of the first screw rod (311) of the rack (313), and the first detection module (51) is arranged on the side where the supporting part (42) is located; The second detection module (52) is arranged at the bottom of the rack (313) and located at the bottom of the first screw rod (311); and / or The supporting part (42) is connected with the sliding block (315) through a connecting block (43), and the same end of the top end of the first lead screw (311) of the side of the sliding block (315) connected with the connecting block (43) 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).

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