Automobile transport rack
By designing a foldable and forklift-stallable car transport rack, the problem of low stacking efficiency in existing technologies is solved, enabling easy stacking and multimodal transport, and reducing logistics costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DALIAN CIMC LOGISTICS EQUIP
- Filing Date
- 2025-07-21
- Publication Date
- 2026-07-14
AI Technical Summary
Existing car transport racks suffer from low efficiency when stacked, failing to meet the needs of multimodal transport.
A car transport rack including a base frame and an upper frame was designed. The base frame consists of two lower frames, connecting frames and corner brackets. The upper frame is movably connected and foldable. Forklift stacking is achieved through fork holes and corner brackets. The corner brackets are locked by twist locks. The dimensions are designed to conform to standard container dimensions.
It enables easy stacking and handling of car transport racks, meeting the requirements of multimodal transport and reducing logistics costs.
Smart Images

Figure CN224492033U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of transportation technology, and in particular to a car transport frame. Background Technology
[0002] Currently, the demand for automobile transportation is growing, and the use of ordinary special-purpose vehicles and ships can no longer meet the requirements of logistics cost control and personalized customer services. As a result, automobile container transportation, which is compatible with multimodal transport such as sea, land and rail, is becoming more and more common.
[0003] Typically, after transporting cars to their destination, the transport racks are returned by stacking. However, the stacking of transport racks still needs improvement. Utility Model Content
[0004] The purpose of this invention is to provide a conveniently stackable car transport rack to solve the problems in the prior art.
[0005] To solve the above-mentioned technical problems, this utility model provides a car transport rack, comprising:
[0006] The base frame includes two lower frames spaced apart longitudinally, a connecting frame connecting the two lower frames, and corner pieces disposed at the mutually distant ends of the lower frames;
[0007] Two upper shelves are provided, corresponding to two lower shelves; each upper shelf is movably connected to the corresponding lower shelf, so that the upper shelf can move longitudinally relative to the lower shelf and rise to tilt and unfold relative to the lower shelf, or move longitudinally and descend to fold onto the lower shelf.
[0008] The connecting frame is provided with two fork holes spaced longitudinally and extending laterally. When the upper frame is folded onto the lower frame, the corner piece extends upward beyond the upper frame. When the car transport racks are stacked, the corner piece of the upper car transport rack is stacked on the corner piece of the lower car transport rack.
[0009] In one embodiment, the corner piece includes a bottom corner piece and a top corner piece spaced above the bottom corner piece. A rotatable torsion lock is provided above the top corner piece. The torsion lock of one of the car transport frames can rotate and extend into the bottom corner piece of the other car transport frame to realize the stacking of the two car transport frames. The torsion lock can lock the two car transport frames after being rotated.
[0010] In one embodiment, the top of the corner piece is flush with or extends upward beyond the top of the connecting frame;
[0011] The top of the corner piece is flush with or extends upwards from the top of the upper shelf folded onto the lower shelf.
[0012] In one embodiment, the connecting frame includes two parallel connecting beams and two spaced-apart fork beams. The connecting beams extend longitudinally and are respectively connected to the two lower frames at their opposite ends. The fork beams extend laterally and are connected to the two connecting beams. The fork beams are provided with fork holes.
[0013] In one embodiment, the fork beam is connected to the top of the two connecting beams;
[0014] The connecting beam is provided with an outward-facing receiving groove, and a reinforcing rib is provided in the receiving groove. The reinforcing rib is connected to the connecting beam and corresponds to the fork beam.
[0015] In one embodiment, when the upper shelf is folded onto the lower shelf, the corner pieces are spaced apart from the corresponding upper shelf along the longitudinal direction.
[0016] In one embodiment, the longitudinal dimension of the underframe is less than or equal to 12192 mm, the transverse dimension of the underframe is less than or equal to 2438 mm, and the height of the seven car transport racks stacked together is less than or equal to 2896 mm.
[0017] In one embodiment, the upper shelf and the lower shelf are movably connected by a connector, the connector including a first column and a second column arranged longitudinally at intervals, the opposite ends of the first column being rotatably connected to the lower shelf and the upper shelf respectively, the first column being able to rotate downward to fold onto the lower shelf or rotate upward to stand upright on the lower shelf;
[0018] The bottom end of the second column is rotatably connected to the lower frame, and a sleeve is fitted on the second column, with the two slidingly engaged. The sleeve is rotatably connected to the upper frame.
[0019] In one embodiment, the upper shelf and the lower shelf are locked together by a locking member, which includes a first locking member and a second locking member. The bottom end of the first locking member is rotatably connected to the lower shelf, and the top end of the first locking member is detachably connected to the middle part of the first column to keep it upright when the first column is erected.
[0020] The second column has multiple positioning holes, which are spaced apart along the length of the second column. The sleeve has a through hole, and the second locking member can be simultaneously inserted into the through hole and any one of the positioning holes to lock the sleeve and the second column.
[0021] The first column rotates upward in a direction away from the second column so that the first column can stand upright on the lower frame, and the first locking member rotates in a direction away from the first column so that the first locking member folds onto the lower frame.
[0022] In one embodiment, the length of the first column is less than the length of the second column;
[0023] The first column rotates upward away from the second column so that it can stand upright on the lower frame, and the first column rotates downward towards the second column so that it folds onto the lower frame.
[0024] As can be seen from the above technical solution, the advantages and positive effects of this utility model are as follows:
[0025] The car transport rack in this application includes a base frame and two upper frames. The base frame includes two lower frames spaced apart longitudinally, a connecting frame connecting the two lower frames, and corner brackets located at the mutually distant ends of the lower frames. The two upper frames are correspondingly arranged with the two lower frames. The connecting frame has two fork holes spaced apart longitudinally, extending laterally to allow a forklift to insert into the fork holes for forklift transport, thereby stacking one car transport rack onto another. The car transport racks are stacked using the corner brackets. Therefore, the fork holes on the car transport rack allow forklift insertion, enabling the forklift to move and lift the car transport rack onto another car transport rack. Furthermore, the car transport racks are stacked by stacking the corner brackets together. Attached Figure Description
[0026] Figure 1 This is a structural schematic diagram of one embodiment of the automobile transport frame of this utility model.
[0027] Figure 2 This is a front view schematic diagram of one embodiment of the automobile transport frame of this utility model.
[0028] Figure 3 This is a top view schematic diagram of one embodiment of the automobile transport frame of this utility model.
[0029] Figure 4 This is a front view schematic diagram of the stacked automobile transport rack of this utility model.
[0030] The annotations in the attached figures are explained as follows:
[0031] 100. Car transport frame; 1. Base frame; 11. Lower frame; 12. Connecting frame; 121. Fork beam; 1211. Fork hole; 13. Corner piece; 131. Bottom corner piece; 132. Top corner piece; 133. Twist lock; 2. Upper frame; 31. First upright; 32. Second upright; 41. First locking element; 42. Second locking element. Detailed Implementation
[0032] Although the present invention can be readily embodied in various forms, only some specific embodiments are shown in the accompanying drawings and will be described in detail in this specification. It is understood that this specification should be regarded as an exemplary illustration of the principles of the present invention and is not intended to limit the present invention to what is described herein.
[0033] Therefore, a feature pointed out in this specification is used to describe one feature of one embodiment of the present invention, and does not imply that every embodiment of the present invention must have the described feature. Furthermore, it should be noted that this specification describes many features. Although certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly stated. Therefore, unless otherwise stated, the described combinations are not intended to be limiting.
[0034] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of the various elements of this invention are relative rather than absolute. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the descriptions of the positions of these elements change, these directional indications also change accordingly.
[0035] This application provides a car transport rack that is not only foldable but also stackable after being folded, and can be used with a forklift during stacking to achieve easy and convenient stacking.
[0036] See Figure 1 The car transport rack 100 includes a base frame 1 and two upper frames 2. The base frame 1 includes two lower frames 11 spaced apart longitudinally, a connecting frame 12 connecting the two lower frames 11, and corner brackets 13 located at the mutually distant ends of the lower frames 11. The two upper frames 2 are correspondingly arranged with the two lower frames 11. The connecting frame 12 has two fork holes 1211 spaced apart longitudinally, which extend laterally, allowing a forklift to insert into the fork holes 1211 to forklift the car transport rack 100, thereby stacking one car transport rack 100 on top of another. The car transport racks 100 are stacked via the corner brackets 13.
[0037] That is, the fork holes 1211 on the car transport rack 100 can be inserted by a forklift, so that the car transport rack 100 can be moved and lifted by the forklift and stacked onto another car transport rack 100. And the car transport racks 100 are stacked by the corner pieces 13.
[0038] The base frame 1 includes two lower frames 11 arranged longitudinally at intervals, a connecting frame 12 connecting the two lower frames 11, and corner pieces 13 arranged at the mutually distant ends of the lower frames 11.
[0039] The lower frame 11 has a frame structure, specifically including two parallel longitudinal beams, a crossbeam connecting the two longitudinal beams, and a driveway for supporting the vehicle's tires. The driveway extends longitudinally. The top of the driveway forms a support position on each lower frame 11 for supporting the vehicle; that is, each lower frame 11 has one support position, and the base frame 1 has two support positions.
[0040] A connecting frame 12 connects the two lower frames 11. The connecting frame 12 includes two parallel connecting beams and two spaced-apart fork beams 121. The connecting beams extend longitudinally and connect to the two lower frames 11 at their respective ends.
[0041] Specifically, the connecting beams and the longitudinal beams of the two lower frames 11 located on the same straight line are a single beam to increase the strength of the base frame 1.
[0042] The fork beam 121 extends laterally and connects to two connecting beams. The fork beam 121 has fork holes 1211. Specifically, the fork holes 1211 extend laterally. In this embodiment, the fork beam 121 is made of square tubular steel.
[0043] The fork beam 121 is connected to the top of the two connecting beams. The connecting beam is provided with an outward-facing receiving groove, and a reinforcing rib is provided in the receiving groove. The reinforcing rib is connected to the connecting beam and corresponds to the fork beam 121.
[0044] In this embodiment, the connecting beam includes a top wall, a bottom wall, and a side wall connecting the top and bottom walls. The top wall, bottom wall, and connecting wall together form an outwardly opening receiving groove. The connecting beam can specifically be a U-shaped steel or an I-beam. The reinforcing rib is fixedly connected to the top wall, side wall, and bottom wall, and is located directly below the fork beam 121.
[0045] The dimensions of the reinforcing rib gradually decrease from top to bottom along the transverse direction. In this embodiment, the cross-section of the reinforcing rib is an inverted trapezoid.
[0046] Corner pieces 13 are located at the far ends of the lower frame 11, that is, corner pieces 13 are located at the corners of the base frame 1. In this embodiment, the base frame 1 is square, and corner pieces 13 are provided at all four corners, that is, each car transport frame 100 includes four corner pieces 13.
[0047] Specifically, the corner piece 13 includes a bottom corner piece 131 and top corner pieces 132 spaced above the bottom corner piece 131. A rotatable torsion lock 133 is provided above the top corner piece 132. The torsion lock 133 of one car carrier 100 can rotate and extend into the bottom corner piece 131 of another car carrier 100, enabling the stacking of the two car carriers 100. The torsion lock 133, after rotation, can lock the two car carriers 100. Multiple car carriers 100 stacked as follows... Figure 4 As shown.
[0048] In this embodiment, the bottom corner piece 131 has an accommodating space inside, and the bottom of the bottom corner piece 131 is provided with a through hole communicating with the accommodating space. The through hole is a strip-shaped hole, and its length extends in the horizontal or vertical direction.
[0049] The twist lock 133 is strip-shaped and can pass through the perforation in a manner parallel to the length direction of the perforation to enter the receiving space. It is then restricted within the receiving space by rotation, thereby achieving the connection between one bottom corner piece 131 and another car transport rack 100.
[0050] The top corner piece 132 is fixed above the bottom corner piece 131 by a fixing member. The top corner piece 132 has an internal receiving space, and a through hole is provided at the top of the top corner piece 132. The torsion lock 133 extends upward from the top corner piece 132 through the through hole. The bottom of the torsion lock 133 is rotatably connected to the top corner piece 132, allowing the torsion lock 133 to rotate. Exemplarily, the rotatable connection can be achieved by: a mounting plate being provided within the receiving space of the top corner piece 132, with a rotating hole on the mounting plate; a rotating shaft being provided at the bottom of the torsion lock 133, which is disposed within the rotating hole and is capable of rotation. The rotation of the rotating shaft can be manually driven, electrically driven, or hydraulically driven, depending on the actual needs.
[0051] Furthermore, the top of the corner piece 132 is flush with or extends upward beyond the top of the connecting frame 12. This design avoids interference between the car transport racks 100 when they are stacked.
[0052] The top of the corner piece 132 is flush with or extends upwards above the top of the upper shelf 2 folded onto the lower shelf 11. This design avoids interference between the car transport racks 100 when stacked.
[0053] The longitudinal dimension of base frame 1 is less than or equal to 12192 mm. The transverse dimension of base frame 1 is less than or equal to 2438 mm. The height of the 7 car transport racks 100 stacked together is less than or equal to 2896 mm.
[0054] The longitudinal dimension of the base frame 1 refers to the distance between the outer ends of both ends of the base frame 1 along the longitudinal direction. The transverse dimension of the base frame 1 refers to the distance between the outer ends of both ends of the base frame 1 along the transverse direction. The height of the seven car transport racks 100 stacked together is less than or equal to 2896 mm, which can be understood as the sum of the heights of the seven top corner pieces 132 and bottom corner pieces 131 being less than or equal to 2896 mm.
[0055] In this embodiment, the base frame 1 has a length of 12192 mm and a width of 2438 mm, and the corner fitting 13 is adapted to the corner fitting 13 position of a standard 40-foot container. The height of the seven car carrier racks 100 stacked together is 2896 mm. Using the above-mentioned dimensional design, the stacked dimensions are consistent with the dimensions of a standard 40-foot container, facilitating multimodal transport and meeting logistics cost control requirements.
[0056] In other embodiments, the size of the car transport rack 100 can also be matched with containers of other sizes as needed, depending on the actual requirements.
[0057] Two upper racks 2 and two lower racks 11 are arranged correspondingly. Each upper rack 2 provides a support position for supporting a vehicle. Therefore, the entire car transport rack 100 has four support positions and can load four vehicles at a time.
[0058] Each upper shelf 2 is movably connected to the corresponding lower shelf 11, so that the upper shelf 2 can move longitudinally and rise relative to the lower shelf 11 to tilt and unfold relative to the lower shelf 11, or move longitudinally and descend to fold onto the lower shelf 11.
[0059] The upper frame 2 has a frame structure and includes two parallel longitudinal beams, crossbeams connecting the two longitudinal beams, and a driveway for supporting the vehicle's tires. The driveway extends longitudinally.
[0060] The upper frame 2 and the lower frame 11 are movably connected by a connector. The connector includes a first column 31 and a second column 32 spaced longitudinally. In this embodiment, the first column 31 is located inside the second column 32, so that the two first columns 31 of the entire car transport frame 100 are located between the two second columns 32. The first column 31 can be rotated upward away from the second column 32 so that the first column 31 can stand upright on the lower frame 11, and the first column 31 can be rotated downward towards the second column 32 so that it folds onto the lower frame 11.
[0061] The two ends of the first upright column 31 are rotatably connected to the lower frame 11 and the upper frame 2, respectively. The first upright column 31 can rotate downward to fold onto the lower frame 11 or rotate upward to stand upright on the lower frame 11. That is, the rotation of the first upright column 31 drives the longitudinal movement and lifting of the upper frame 2 relative to the lower frame 11.
[0062] In this embodiment, a hinge seat is fixed on the lower frame 11, and the bottom end of the first column 31 is hinged to the hinge seat. The top end of the first column 31 and the upper frame 2 are both provided with end plates, and through holes are opened on the end plates. The hinge shaft passes through the through holes to realize the hinged connection between the first column 31 and the upper frame 2.
[0063] The bottom end of the second column 32 is rotatably connected to the lower frame 11, and a sleeve is fitted on the second column 32, with the two slidingly engaged. The sleeve is rotatably connected to the upper frame 2.
[0064] In this embodiment, a mounting base is fixed on the lower frame 11, the bottom end of the second column 32 is hinged to the mounting base, and the top end of the second column 32 is a free end. A rotating shaft is provided on the side of the sleeve facing the upper frame 2. The upper frame 2 is provided with a transversely extending through hole, and the rotating shaft is inserted into the through hole to achieve a rotatable connection between the sleeve and the upper frame 2.
[0065] The length of the first column 31 is less than the length of the second column 32, so that the upper frame 2 tilts downward from the outside to the inside when unfolded relative to the lower frame 11. That is, it tilts downward from the direction of the second column 32 toward the first column 31.
[0066] The upper shelf 2 and the lower shelf 11 are locked together by a locking mechanism. Specifically, when the upper shelf 2 is folded onto the lower shelf 11, the locking mechanism prevents relative movement between the two. When the upper shelf 2 is unfolded relative to the lower shelf 11, the locking mechanism locks both of them together.
[0067] The locking components include a first locking component 41 and a second locking component 42. The bottom end of the first locking component 41 is rotatably connected to the lower frame 11, and the top end of the first locking component 41 is detachably connected to the middle part of the first column 31 to keep it upright when the first column 31 is erected.
[0068] When the first locking member 41 locks the first upright 31, the first locking member 41, the first upright 31 and the lower frame 11 together form a stable triangle, thereby providing a better locking effect and improving the support strength of the first upright 31 to the upper frame 2.
[0069] The first locking member 41 rotates in a direction away from the first upright 31, causing the first locking member 41 to fold onto the lower frame 11. That is, the first locking member 41 is disposed between the first upright 31 and the second upright 32.
[0070] In this embodiment, a fixing plate is provided in the middle of the first column 31, and a rotating hole is provided on the fixing plate. The first locking member 41 includes a locking rod, a locking plate, and a locking shaft. The bottom end of the locking rod is hinged to the lower frame 11, the locking plate is fixed to the top end of the locking rod, and a rotating hole is provided on the locking plate. The locking shaft is inserted into the rotating holes on both the fixing plate and the locking plate to achieve a detachable connection between the two.
[0071] The second column 32 has multiple positioning holes, which are spaced apart along the length of the second column 32. The sleeve has a through hole, and the second locking member 42 can be inserted into the through hole and any one of the positioning holes at the same time to lock the sleeve and the second column 32.
[0072] In this embodiment, the second column 32 has a positioning hole at its lower part and an upper part, but no positioning hole in its middle part. The lower positioning hole is used to lock the second column 32 folded onto the lower frame 11. The upper positioning hole is used to lock the unfolded second column 32, and the height of the upper frame 2 can be increased by selecting any of the upper positioning holes.
[0073] In other embodiments, multiple columns can be arranged sequentially from top to bottom along the axial direction of the second column 32. The specific arrangement depends on actual needs.
[0074] The first column 31 rotates upward in a direction away from the second column 32 so that the first column 31 can stand upright on the lower frame 11, and the first locking member 41 rotates in a direction away from the first column 31 so that the first locking member 41 folds onto the lower frame 11.
[0075] The unfolding steps of the upper shelf 2 relative to the lower shelf 11 of the car transport rack 100 are as follows:
[0076] The initial state is when the upper frame 2 is folded onto the lower frame 11. At this time, the second locking member 42 is inserted into the positioning hole at the bottom of the second column 32 and the through hole on the sleeve.
[0077] When it is necessary to change the upper frame 2, which is folded on the lower frame 11, to the unfolded state, firstly, the second locking member 42 is released from locking the second column 32 and the sleeve. Then, the first column 31 is rotated, so that the first column 31 is rotated from the folded state on the lower frame 11 to the upright state relative to the lower frame 11. One end of the upper frame 2 moves longitudinally and rises with the rotation of the first column 31. During the longitudinal movement of the upper frame 2, the sleeve also moves along the second column 32. Then, the first locking member 41 is rotated to lock the first column 31 and the lower frame 11. Specifically, the locking rod is rotated to the middle of the first column 31, and the two are locked by the locking shaft passing through the locking plate located at the end of the locking rod and the locking plate on the first column 31. Next, rotate the second column 32 so that it moves from its folded position on the lower frame 11 to an upward position beyond the lower frame 11. During the rotation of the second column 32, the end of the upper frame 2 away from the first column 31 rises upward, while the sleeve slides along the second column 32 until it reaches the preset position. Finally, insert the second locking member 42 into the positioning hole on the second column 32 and the through hole on the sleeve to lock the second column 32 and the upper frame 2 in their unfolded state.
[0078] When it is necessary to change the unfolded shelf 2 to the folded state, the steps are reversed.
[0079] When the upper rack 2 is in the folded state, a forklift can be inserted into the fork holes 1211 to move and lift one car carrier 100 and stack it onto another car carrier 100. By repeating the above steps, multiple car carriers 100 can be stacked layer by layer.
[0080] In summary, the car transport rack in this application has the following advantages:
[0081] The forkholes on the car transport rack in this application allow forklifts to insert, enabling the car transport racks to be moved and lifted by the forklifts and stacked onto another car transport rack. Furthermore, the car transport racks are stacked by stacking corner brackets.
[0082] Furthermore, the dimensions of the car transport racks are such that the stacked dimensions are consistent with those of standard containers, facilitating multimodal transport and meeting logistics cost control requirements.
[0083] By connecting the two lower racks with a connecting frame, a car transport rack can transport four vehicles at the same time.
[0084] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.
Claims
1. A car transport rack, characterized in that, include: The base frame includes two lower frames spaced apart longitudinally, a connecting frame connecting the two lower frames, and corner pieces disposed at the mutually distant ends of the lower frames; Two upper shelves are provided, corresponding to two lower shelves; each upper shelf is movably connected to the corresponding lower shelf, so that the upper shelf can move longitudinally relative to the lower shelf and rise to tilt and unfold relative to the lower shelf, or move longitudinally and descend to fold onto the lower shelf. The connecting frame is provided with two fork holes spaced longitudinally and extending laterally. When the upper frame is folded onto the lower frame, the corner piece extends upward beyond the upper frame. When the car transport racks are stacked, the corner piece of the upper car transport rack is stacked on the corner piece of the lower car transport rack.
2. The car transport frame according to claim 1, characterized in that, The corner pieces include bottom corner pieces and top corner pieces spaced apart above the bottom corner pieces. A rotatable torsion lock is provided above the top corner piece. The torsion lock of one of the car transport frames can rotate and extend into the bottom corner piece of the other car transport frame to realize the stacking of the two car transport frames. The torsion lock can lock the two car transport frames after being rotated.
3. The car transport frame according to claim 2, characterized in that, The top of the corner piece is flush with or extends upward beyond the top of the connecting frame; The top of the corner piece is flush with or extends upwards from the top of the upper shelf folded onto the lower shelf.
4. The car transport frame according to claim 1, characterized in that, The connecting frame includes two parallel connecting beams and two spaced-apart fork beams. The connecting beams extend longitudinally and are connected to the two lower frames at their opposite ends. The fork beams extend laterally and are connected to the two connecting beams. The fork beams are provided with fork holes.
5. The car transport frame according to claim 4, characterized in that, The fork beam is connected to the top of the two connecting beams; The connecting beam is provided with an outward-facing receiving groove, and a reinforcing rib is provided in the receiving groove. The reinforcing rib is connected to the connecting beam and corresponds to the fork beam.
6. The car transport frame according to claim 1, characterized in that, When the upper shelf is folded onto the lower shelf, the corner pieces and the corresponding upper shelf are spaced apart longitudinally.
7. The car transport rack according to claim 1, characterized in that, The longitudinal dimension of the chassis is less than or equal to 12192 mm, the transverse dimension of the chassis is less than or equal to 2438 mm, and the height of the seven vehicle transport racks stacked together is less than or equal to 2896 mm.
8. The car transport rack according to claim 1, characterized in that, The upper shelf and the lower shelf are movably connected by a connector. The connector includes a first column and a second column arranged longitudinally at intervals. The opposite ends of the first column are rotatably connected to the lower shelf and the upper shelf, respectively. The first column can be rotated downward to fold onto the lower shelf or rotated upward to stand upright on the lower shelf. The bottom end of the second column is rotatably connected to the lower frame, and a sleeve is fitted on the second column, with the two slidingly engaged. The sleeve is rotatably connected to the upper frame.
9. The car transport frame according to claim 8, characterized in that, The upper shelf and the lower shelf are locked together by a locking member, which includes a first locking member and a second locking member. The bottom end of the first locking member is rotatably connected to the lower shelf, and the top end of the first locking member is detachably connected to the middle part of the first column to keep it upright when the first column is erected. The second column has multiple positioning holes, which are spaced apart along the length of the second column. The sleeve has a through hole, and the second locking member can be simultaneously inserted into the through hole and any one of the positioning holes to lock the sleeve and the second column. The first column rotates upward in a direction away from the second column so that the first column can stand upright on the lower frame, and the first locking member rotates in a direction away from the first column so that the first locking member folds onto the lower frame.
10. The automobile transport rack according to claim 8, characterized in that, The length of the first column is less than the length of the second column; The first column rotates upward away from the second column so that it can stand upright on the lower frame, and the first column rotates downward towards the second column so that it folds onto the lower frame.