Axle bearing device

Abstract

The utility model provides an axle bearing device which comprises a base and a bearing unit. The multiple sets of bearing units are arranged on the base, different numbers of clamping positions are arranged on the bearing frames on the multiple sets of bearing units respectively, the distances between the adjacent clamping positions on the bearing frames on the multiple sets of bearing units are different, and therefore axles of different sizes can be borne on the different bearing units. When the axle is borne on the corresponding bearing frame, the other bearing frames can be folded on the upper surface of the base, so that interference with the axle can be avoided. Axles of different sizes are borne on the same axle bearing device, the vacancy rate of the bearing device is reduced, the using number of the bearing device is reduced, and the occupied space is reduced.

Description

Technical Field

[0001] This utility model relates to the field of vehicle parts transportation technology, and in particular to a vehicle axle load-bearing device. Background Technology

[0002] The transportation of automobile axle assemblies requires the use of certain equipment to secure the axles to the racks during transport in order to reduce the risk of collisions.

[0003] Currently, standard axle containers have poor versatility. Due to the different sizes of axles for different vehicle models, a single material can only be loaded with axles for one type of vehicle. When transporting axles for different vehicle models, custom-made containers are required. Furthermore, standard axle containers occupy a significant amount of warehouse space when empty, leading to reduced warehouse utilization. Utility Model Content

[0004] The purpose of this utility model is to provide an axle support device that can support axles of different sizes on the same axle support device, thereby reducing the idle rate of the support device, reducing the number of support devices used, and reducing the space occupied.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] According to one aspect of the present invention, the present invention provides a vehicle axle bearing device, including a base and a bearing unit; the bearing unit includes at least two bearing frames spaced apart along a first direction; the bearing frames extend along a second direction, and the upper end surface of the bearing frames is provided with a plurality of engaging positions; the plurality of engaging positions are spaced apart along the second direction on the corresponding bearing frames; the first direction and the second direction are located in a horizontal plane, and the first direction is perpendicular to the second direction.

[0007] The support frame is rotatably connected to the upper surface of the base to switch between a vertical state and a folded state; in the vertical state, the locking position can limit the axle; in the folded state, the support frame is folded to the upper surface of the base; multiple sets of support units are provided, and the support frames on the multiple sets of support units are provided with different numbers of locking positions; the spacing between adjacent locking positions on the support frames on different support units is different.

[0008] In some embodiments of this application, the support frame includes a support rod extending along a second direction and a support rod vertically connected to the support rod; one end of the support rod facing away from the support rod is rotatably connected to the base, and the engaging position is provided on the side of the support rod facing away from the support rod.

[0009] In some embodiments of this application, the upper surface of the base is formed with a protruding first corner post; the upper end of the first corner post is provided with a downwardly extending first through hole, the first through hole being open on at least one side in a first direction; the lower end of the support rod passes through the first through hole and is rotatably connected to the first corner post so as to be able to rotate relative to the first corner post in a first direction.

[0010] In some embodiments of this application, a pivot protruding in a second direction is formed on the outer surface of the lower end of the support rod; a first elongated hole extending vertically is provided on the first corner post; the pivot is rotatably inserted into the first elongated hole and can move along the length direction of the first elongated hole.

[0011] In some embodiments of this application, a first limiting groove is provided at the upper end of the first corner post; a locking protrusion protruding in a second direction is formed on the outer periphery of the bearing rod; when the bearing rod is in a vertical state, the locking protrusion is limited in the first limiting groove to restrict the rotation of the bearing rod.

[0012] In some embodiments of this application, the upper end of the support frame is formed with an upwardly protruding limiting block, and the two limiting blocks form the engaging position; a flexible support pad is provided in the engaging position, and the support pad is attached to the peripheral sidewall of the engaging position.

[0013] In some embodiments of this application, the multiple sets of the support units include a first support unit and a second support unit; the projections of the first support unit and the second support unit on the base overlap, and the two ends of the support frame of the second support unit extend beyond the support frame of the first support unit along the second direction.

[0014] In some embodiments of this application, the upper surface of the base is further provided with a plurality of protruding second corner posts; the plurality of second corner posts are arranged at intervals, and the bearing unit is located within the enclosed area of ​​the plurality of second corner posts on the horizontal plane; the axle bearing device further includes a column, the column being arranged vertically; the lower end of the column is rotatably connected to the second corner posts so that the column can be folded on the upper surface of the base.

[0015] In some embodiments of this application, the upper end of the second corner post is provided with a downwardly extending second through hole, and the second through hole is open on at least one side in a first direction or a second direction; the lower end of the column passes through the second through hole and is rotatably connected to the second corner post.

[0016] In some embodiments of this application, a protruding convex shaft is formed on the outer surface of the lower end of the column; a second elongated hole extending vertically is provided on the second corner column; the convex shaft is rotatably inserted into the second elongated hole and can move along the length direction of the second elongated hole; a second limiting groove is provided at the upper end of the second corner column; a limiting protrusion protruding in a first direction is formed on the outer periphery of the column; the limiting protrusion can be limited within the second limiting groove to restrict the rotation of the column.

[0017] In some embodiments of this application, the outer frame of the base is rectangular; four columns are provided; the four columns are provided at the corners of the base; the two ends of the bearing unit in the second direction are respectively close to the edge of the base; the columns are rotatably provided on the base along the second direction.

[0018] As can be seen from the above technical solution, this utility model has at least the following advantages and positive effects:

[0019] In this invention, the support frame is rotatably connected to the upper surface of the base, allowing it to switch between a vertical and a folded state. In the vertical state, the locking positions on the support frame can limit the axle to support and fix it. When the corresponding support unit needs to be used, the support frame can be folded onto the upper surface of the base.

[0020] The base has multiple sets of support units, each with a different number of engagement positions on its support frame. The spacing between adjacent engagement positions on the support frames of different sets varies, allowing axles of different sizes to be supported on different support units. When an axle is supported on a corresponding support frame, other support frames can be folded onto the upper surface of the base to avoid interference with the axle. By supporting axles of different sizes on the same axle support device, the idle rate of the support device is reduced, the number of support devices used is reduced, and the space occupied is reduced.

[0021] Other features and advantages of this application will become apparent from the following detailed description, or may be learned in part from practice of this application.

[0022] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0023] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0024] Figure 1 This is a schematic diagram of the axle load-bearing device of this utility model when it is stored.

[0025] Figure 2 This is a schematic diagram of the load-bearing structure of the axle of this utility model on the first load-bearing unit.

[0026] Figure 3 This is a schematic diagram of the bearing device when the first bearing unit of this utility model is in a vertical state.

[0027] Figure 4 yes Figure 3 A schematic diagram of the structure from another perspective.

[0028] Figure 5 yes Figure 4 Enlarged view of point A in the middle.

[0029] Figure 6 This is a structural schematic diagram of the support frame of this utility model.

[0030] Figure 7 This is a schematic diagram of the structure of the first corner post of this utility model.

[0031] Figure 8 This is a partial structural schematic diagram of the present invention, in which the column is housed on the base.

[0032] Figure 9 This is a schematic diagram of the load-bearing capacity of the axle of this utility model on the second load-bearing unit.

[0033] Figure 10 This is a schematic diagram of the bearing device when the second bearing unit of this utility model is in a vertical state.

[0034] The reference numerals in the attached drawings are explained as follows: 100, base; 110, crossbeam; 120, longitudinal beam; 130, connecting beam; 200, bearing unit; 210, bearing frame; 211, bearing rod; 212, support rod; 213, pivot; 214, locking protrusion; 220, locking position; 230, limiting block; 240, support pad; 201, first bearing unit; 202, second bearing unit;

[0035] 300, First corner post; 310, First through hole; 320, First elongated hole; 330, First limiting groove; 400, Post; 410, Protruding shaft; 420, Limiting protrusion; 500, Second corner post; 510, Second through hole; 520, Second elongated hole; 530, Second limiting groove; 900, Axle. Detailed Implementation

[0036] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be more thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art.

[0037] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0038] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments described below can be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present application, and should not be construed as limiting the present application.

[0039] For ease of description and understanding, the orientation of the axle load-bearing device is determined with reference to its operational state, with the vertical direction defined as up and down. Both the first and second directions are horizontal, with the first direction perpendicular to the second direction.

[0040] Figure 1 This is a schematic diagram of the axle load-bearing device of this utility model when it is stored. Figure 2 This is a schematic diagram of the load-bearing structure of the axle of this utility model on the first load-bearing unit.

[0041] See Figure 1 and Figure 2 This application provides an axle support device for supporting an axle 900. The axle support device may include a base 100 and multiple sets of support units 200. The multiple sets of support units 200 are capable of respectively limiting axles 900 of different sizes on the support device.

[0042] In some embodiments, the outer contour of the base 100 is rectangular. Specifically, the base 100 includes two horizontal beams 110 and two vertical beams 120, which are connected end to end in an alternating manner to form a rectangular frame structure.

[0043] In some embodiments, a connecting beam 130 is also provided between the two longitudinal beams 120. The extending direction of the connecting beam 130 is parallel to the extending direction of the transverse beam 110, and both ends of the connecting beam 130 are fixed to the longitudinal beams 120 respectively. Multiple connecting beams 130 are provided, and the multiple connecting beams 130 are spaced apart along the extending direction of the longitudinal beams 120.

[0044] In one embodiment, the extending direction of the connecting beam 130 is parallel to the extending direction of the longitudinal beam 120, and both ends of the connecting beam 130 are respectively fixed to the transverse beam 110. Multiple connecting beams 130 are provided, and the multiple connecting transverse beams 110 are spaced apart along their extending directions.

[0045] In another embodiment, the base 100 has a plate-like structure. Further details will not be provided here.

[0046] Figure 3 This is a schematic diagram of the bearing device when the first bearing unit of this utility model is in a vertical state. Figure 4 yes Figure 3 A schematic diagram of the structure from another perspective. Figure 5 yes Figure 4 Enlarged view of point A in the middle. Figure 6 This is a structural schematic diagram of the support frame of this utility model.

[0047] See Figures 1 to 6 In this application, the bearing unit 200 includes at least two bearing frames 210 spaced apart along a first direction. The two bearing frames 210 are used to bear and support two spaced portions on the axle 900, so as to support and limit the axle 900 on the frame.

[0048] The two support frames 210 of the support unit 200 are spaced apart along a first direction, and the support frames 210 extend along a second direction. Both the first and second directions are located in a horizontal plane, and the first direction is perpendicular to the second direction. Each support frame 210 is provided with a plurality of engaging positions 220 along the second direction, and the engaging positions 220 on the two support frames 210 are arranged opposite to each other, so that multiple axles 900 can be supported and confined on the support frame 210 at intervals along the second direction. The engaging positions 220 are through at both ends along the first direction for supporting the axles.

[0049] In some embodiments, the upper end of the support frame 210 is formed with an upwardly protruding limiting block 230, and a locking position 220 is formed between the two limiting blocks 230.

[0050] In other embodiments, the upper end of the support frame 210 is provided with a groove to form the engagement position 220.

[0051] In one embodiment, a flexible support pad 240 is provided within the engagement position 220, and the support pad 240 is attached to the peripheral sidewall of the engagement position 220. The support pad is elastic to cushion the impact of the axle 900. The support pad 220 can be a silicone pad, a foam pad, or polyurethane.

[0052] In some embodiments, the support frame 210 is rotatably connected to the upper surface of the base 100 to switch between a vertical state and a folded state. When the support frame 210 is in the vertical state, the engaging position 220 can limit the axle 900 to support the axle 900 on the corresponding support frame 210. When the axle 900 does not need to be supported on the corresponding support unit 200, the corresponding support frame 210 can be rotated to a folded state. In the folded state, the corresponding support frame 210 is folded onto the upper surface of the base 100.

[0053] In some embodiments, the support frame 210 includes a support rod 211 extending in a second direction and a support rod 212 vertically connected to the support rod 211; one end of the support rod 212 facing away from the support rod 211 is rotatably connected to the base 100, and a locking position 220 is provided on the side of the support rod 211 facing away from the support rod 212.

[0054] Each support rod 211 is provided with two or more support rods 212. In one specific embodiment, each support rod 212 is provided with two support rods 212, and the two support rods 212 are located at both ends of the length direction of the support rod 211.

[0055] Figure 7 This is a schematic diagram of the structure of the first corner post of this utility model.

[0056] See Figures 1 to 7 The upper surface of the base 100 has a protruding first corner post 300. The lower end of the support frame 210 is rotatably connected to the first corner post 300 and can be limited on the first corner post 300 so that the support frame 210 can switch between a vertical state and a folded state.

[0057] In some embodiments, the upper end of the first corner post 300 has a downwardly extending first through hole 310, and the lower end of the support rod 212 passes through the first through hole 310. The support rod 212 is rotatably connected to the first corner post 300, and the first through hole 310 is open on at least one side in a first direction, so that the support rod 212 can rotate relative to the first corner post 300 in the first direction. The side of the first through hole 310 is open so that the first corner post 300 does not interfere with the rotation of the support rod 212.

[0058] In some other embodiments, a pivot 213 protruding in a second direction is formed on the outer surface of the lower end of the support rod 212, and a first elongated hole 320 is provided on the first corner post 300. The pivot 213 passes through the first elongated hole 320 so that the pivot 213 can be rotatably passed through the first elongated hole 320.

[0059] In some embodiments, protruding pivots 213 are formed on two opposite surfaces of the support rod 212. The pivots 213 pass through the first elongated hole 320 to support the support frame 210. The pivots 213 can be round rods that pass through the support rod 212 along the second direction, with both ends of the round rods extending beyond the two opposite sides of the support rod 212.

[0060] In some embodiments, the first elongated hole 320 extends vertically, and the rotating shaft 213 is rotatably inserted into the first elongated hole 320 and can move along the length direction of the first elongated hole 320.

[0061] In other embodiments, a first limiting groove 330 is provided at the upper end of the first corner post 300; a locking protrusion 214 protruding in the second direction is formed on the outer periphery of the bearing rod 211; when the bearing rod 211 is in a vertical state, the locking protrusion 214 is limited in the first limiting groove 330 to restrict the rotation of the bearing rod 211.

[0062] When it is necessary to rotate the support rod 211 from the vertical state to the folded state, the support frame 210 is moved upward. The rotating shaft 213 and the locking protrusion 214 on the support rod 211 move upward with the support rod 211. The locking protrusion 214 disengages from the first limiting groove 330. Then the support frame 210 is rotated so that the support frame 210 rotates to the folded state.

[0063] In one embodiment, a first limiting groove 330 is provided on each of the opposite sides of the first corner post 300, and a corresponding locking protrusion 214 is provided on each of the opposite sides of the bearing rod 211.

[0064] Figure 8 This is a partial structural schematic diagram of the present invention, in which the column is housed on the base.

[0065] See Figures 1 to 8 The axle support device also includes a column 400, which is vertically arranged. The column 400 can switch between a vertical state and a retracted state. When the column 400 is in the vertical state, it is vertically arranged. When the column 400 is in the retracted state, it is folded onto the base 100.

[0066] It should be noted that, as Figure 1When the axle load-bearing device is stored, the column 400 is in the stored state and all the load-bearing units 200 are in the folded state, so that the axle load-bearing device has a smaller thickness in the vertical direction and occupies less space, so as to facilitate the transportation and storage of the axle load-bearing device itself.

[0067] In one embodiment, multiple columns 400 are provided, arranged at intervals, and the bearing unit 200 is located within the enclosure of the multiple columns 400 on a horizontal plane. When the columns 400 are in the vertical state, they are used to protect the axle 900 on the axle bearing device.

[0068] In some embodiments, the upper surface of the base 100 is further provided with a plurality of protruding second corner posts 500; the plurality of second corner posts 500 are arranged at intervals, and the bearing unit 200 is located within the enclosed area of ​​the plurality of second corner posts 500 on the horizontal plane. The uprights 400 are rotatably connected to the second corner posts 500, and the number of second corner posts 500 corresponds to the number of uprights 400.

[0069] In one embodiment, the outer frame of the base 100 is rectangular; four columns 400 are provided; the four columns 400 are located at the corners of the base 100.

[0070] In some embodiments, the upper end of the second corner post 500 has a downwardly extending second through hole 510, and the second through hole 510 is open on at least one side in a first direction or a second direction; the lower end of the column 400 passes through the second through hole 510 and is rotatably connected to the second corner post 500. The cooperation between the column 400 and the second corner post 500 can be referred to as the cooperation between the support rod 212 and the first corner post 300.

[0071] In one embodiment, the opposing surfaces of the two second corner posts 500 facing each other along the second direction are open, that is, the second through hole 510 is open on one side of the second direction, so that the post 400 can rotate in the second direction.

[0072] In one specific embodiment, the support unit 200 extends along a second direction, with both ends of the support unit 200 extending to both ends of the base 100 along the second direction. The column 400 is rotatable in the second direction to prevent the column 400 from interfering with the support unit 200 after being stored.

[0073] In some embodiments, a protruding convex shaft 410 is formed on the outer surface of the lower end of the column 400; a second elongated hole 520 extending vertically is provided on the second corner column 500; the convex shaft 410 is rotatably inserted into the second elongated hole 520 and can move along the length direction of the second elongated hole 520; a second limiting groove 530 is provided at the upper end of the second corner column 500; a limiting protrusion 420 protruding in a first direction is formed on the outer periphery of the column 400; the limiting protrusion 420 can be limited within the second limiting groove 530 to restrict the rotation of the column 400.

[0074] When it is necessary to rotate the column 400 from the vertical state to the storage state, move the column 400 upward. The convex shaft 410 and the limiting protrusion 420 on the column 400 move upward with the column 400. The limiting protrusion 420 disengages from the second limiting groove 530. Then rotate the column 400 so that the column 400 rotates to the storage state.

[0075] Figure 9 This is a schematic diagram of the load-bearing capacity of the axle of this utility model on the second load-bearing unit. Figure 10 This is a schematic diagram of the bearing device when the second bearing unit of this utility model is in a vertical state.

[0076] See Figure 9 and Figure 10 And see also Figures 1 to 8 In this application, the multiple sets of support units 200 include a first support unit 201 and a second support unit 202. The support rods 211 in the first support unit 201 and the support rods 211 in the second support unit 202 are respectively provided with different numbers of engagement positions 220.

[0077] The projections of the first support unit 201 and the second support unit 202 on the base 100 overlap. When the support frame 210 in the first support unit 201 is in a vertical state, the support frame 210 in the second support unit 202 is in a folded state. When the support frame 210 in the first support unit 201 is in a folded state, the support frame 210 in the second support unit 202 is in a vertical state; thus avoiding interference between the first support unit 201 and the second support unit 202.

[0078] In one embodiment, the support frame 210 of the second support unit 202 extends beyond the support frame 210 of the first support unit 201 at both ends along the second direction. The length of the support frame 210 of the second support unit 202 in the first direction exceeds the length of the support frame 210 of the first support unit 201, so that more engagement positions 220 can be provided on the second support unit 202. For example, the support frame 210 of the first support unit 201 has three engagement positions 220 along the second direction, and the support frame 210 of the second support unit 202 has four engagement positions 220 along the second direction.

[0079] In one specific embodiment, the support frame 210 includes a support rod 211 and support rods 212 vertically connected to both ends of the support rod 211. The two ends of the support rod 211 of the second support unit 202 extend beyond the two ends of the support rod 211 of the first support unit 201, so that the support rod 212 of the first support unit 201 will not interfere with the support rod 212 of the second support unit 202.

[0080] It should be noted that the lower ends of the first and second bearing units are rotatably connected to their respective first corner posts. The first corner post corresponding to the first bearing unit is called corner post one, and the first corner post corresponding to the second bearing unit is called corner post two. Corner post one and corner post two are each provided with a first through hole 310. The opening directions of the through holes 310 on corner post one and corner post two are arranged opposite to each other to avoid interference between the first and second bearing units.

[0081] In other embodiments, the carrier unit 200 is configured as two, three, four or more groups.

[0082] Based on the above technical features: the base 100 has multiple sets of support units 200, and the support frames 210 on the multiple sets of support units 200 are provided with different numbers of engaging positions 220. The spacing between adjacent engaging positions 220 on the support frames 210 of the multiple sets of support units 200 is different, so that axles 900 of different sizes can be supported on different support units 200. When an axle 900 is supported on a corresponding support frame 210, other support frames 210 can be folded on the upper surface of the base 100 to avoid interference with the axle 900. By supporting axles 900 of different sizes on the same axle support device, the idle rate of the support device is reduced, the number of support devices used is reduced, and the space occupied is reduced.

[0083] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0084] In this application, unless otherwise expressly specified and limited, the terms "assembly," "connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In the description of this specification, the reference to terms such as "some embodiments," "exemplarily," etc., means that the specific features, structures, materials, or characteristics described in connection with that embodiment or example are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0085] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application. Therefore, any changes or modifications made in accordance with the claims and description of this application should fall within the scope of this patent application.

Claims

1. A vehicle axle load-bearing device, characterized in that, include: Base; The support unit includes at least two support frames spaced apart along a first direction; The support frame extends along the second direction, and the upper end face of the support frame is provided with a plurality of engaging positions; the plurality of engaging positions are spaced apart along the second direction on the corresponding support frame; the first direction and the second direction are both located in a horizontal plane, and the first direction is perpendicular to the second direction; The support frame is rotatably connected to the upper surface of the base so as to be able to switch between a vertical state and a folded state; in the vertical state, the locking position can limit the axle; in the folded state, the support frame is folded to the upper surface of the base. The bearing unit is provided in multiple sets, and the bearing frame on the multiple sets of bearing units is provided with a different number of locking positions; the spacing between adjacent locking positions on the bearing frame on different bearing units is different.

2. The axle bearing device according to claim 1, characterized in that, The support frame includes a support rod extending along a second direction and a support rod vertically connected to the support rod; one end of the support rod facing away from the support rod is rotatably connected to the base, and the engaging position is located on the side of the support rod facing away from the support rod.

3. The axle bearing device according to claim 2, characterized in that, The upper surface of the base has a protruding first corner post; the upper end of the first corner post has a downwardly extending first through hole, which is open on at least one side in a first direction; the lower end of the support rod passes through the first through hole and is rotatably connected to the first corner post so as to be able to rotate relative to the first corner post in a first direction.

4. The axle bearing device according to claim 3, characterized in that, A pivot protruding in a second direction is formed on the outer surface of the lower end of the support rod; a first elongated hole extending vertically is provided on the first corner post; the pivot is rotatably inserted into the first elongated hole and can move along the length direction of the first elongated hole.

5. The axle bearing device according to claim 4, characterized in that, The upper end of the first corner post is provided with a first limiting groove; a locking protrusion protruding in a second direction is formed on the outer periphery of the bearing rod; when the bearing rod is in a vertical state, the locking protrusion is limited in the first limiting groove to restrict the rotation of the bearing rod.

6. The axle bearing device according to claim 1, characterized in that, The upper end of the support frame has an upwardly protruding limiting block, and the two limiting blocks form the locking position; A flexible support pad is provided inside the engagement position, and the support pad is attached to the peripheral sidewall of the engagement position.

7. The axle bearing device according to claim 1, characterized in that, The multiple sets of support units include a first support unit and a second support unit; the projections of the first support unit and the second support unit on the base overlap, and the two ends of the support frame of the second support unit extend beyond the support frame of the first support unit along the second direction.

8. The axle bearing device according to claim 1, characterized in that, The upper surface of the base is also provided with a plurality of protruding second corner posts; the plurality of second corner posts are arranged at intervals, and the bearing unit is located within the enclosed area of ​​the plurality of second corner posts on the horizontal plane; The axle support device also includes a column, which is arranged vertically; the lower end of the column is rotatably connected to the second corner column so that the column can be folded onto the upper surface of the base.

9. The axle bearing device according to claim 8, characterized in that, The upper end of the second corner post has a downwardly extending second through hole, and the second through hole is open on at least one side in a first direction or a second direction; the lower end of the column passes through the second through hole and is rotatably connected to the second corner post.

10. The axle bearing device according to claim 9, characterized in that, A protruding convex shaft is formed on the outer surface of the lower end of the column; a second elongated hole extending vertically is opened on the second corner column; the convex shaft is rotatably inserted into the second elongated hole and can move along the length direction of the second elongated hole. The upper end of the second corner post is provided with a second limiting groove; a limiting protrusion protruding in a first direction is formed on the outer periphery of the post; the limiting protrusion can be limited within the second limiting groove to restrict the rotation of the post.

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