Walking device and heavy load trailer

Abstract

The utility model provides a walking device and a heavy load trailer, the walking device is installed on the lower portion of the heavy load trailer, the walking device comprises at least two sets of suspension devices, the at least two sets of suspension devices are distributed on the two sides of the heavy load trailer in the walking direction of the heavy load trailer, each suspension device comprises a plurality of supporting frames, the supporting frames are roughly arranged in the walking direction of the heavy load trailer, the suspension devices are further provided with damping assemblies, and the damping assemblies are connected with the supporting frames. The bearing wheel assembly comprises a plurality of bearing wheels, and each supporting frame is rotationally connected with at least one bearing wheel; first containing spaces which are communicated with each other are formed between the suspension devices distributed on the two sides of the heavy-load trailer and between the bearing wheel assemblies. When the heavy-load trailer is moved towards the direction of the heavy-load goods, most of the area of the heavy-load goods can be contained in the first containing space.

Description

TECHNICAL FIELD

[0001] The utility model relates to transportation equipment technical field especially, it is a walking device, and it further relates to a heavy load trailer. BACKGROUND

[0002] In the trailer of transporting heavy load goods (such as the cable reel of larger section), it is usually needed to arrange the flat frame capable of carrying goods, and the complex chassis device is set below the flat frame, and usually, the chassis device is arranged with multiple axles to improve the carrying capacity of the trailer. SUMMARY

[0003] The utility model discloses a walking device and heavy load trailer, and the preferred technical scheme in the many technical schemes provided by the utility model can produce many technical effects, which are described below.

[0004] To achieve the above object, the first aspect of the utility model provides a walking device, the walking device is installed in the lower part of heavy load trailer, and the walking device comprises:

[0005] At least two groups of suspension devices are distributed on both sides of the heavy load trailer along the walking direction of the heavy load trailer, each group of suspension devices comprises a plurality of support frames, the plurality of support frames are arranged along the walking direction of the heavy load trailer, and a damping assembly is further arranged on the suspension device and connected with the support frame;

[0006] A bearing wheel assembly comprises a plurality of bearing wheels, and each support frame is rotatably connected with at least one bearing wheel;

[0007] Wherein, the first accommodating space is formed between the suspension devices distributed on both sides of the heavy load trailer and the bearing wheel assembly.

[0008] Wherein, the heavy load trailer is moved towards the heavy load goods, and most of the region of the heavy load goods can be accommodated in the first accommodating space.

[0009] In some embodiments of the utility model, each group of suspension devices is provided with at least two support frames, and the two support frames are arranged adjacent along the walking direction of the heavy load trailer.

[0010] One end of each support frame is rotatably connected to the lower part of the heavy load trailer, and the other end is connected to the lower part of the heavy load trailer through the damping assembly.

[0011] Each support frame is rotatably connected with a bearing wheel, and the rotation area connected with the support frame and the bearing wheel is located between the two ends of the support frame.

[0012] In some embodiments of the utility model, the damping assembly comprises a plurality of leaf springs, both ends of each leaf spring are connected with the partial area on the two support frames arranged adjacently.

[0013] In some embodiments of the utility model, the end of the leaf spring is connected to one end of the support frame.

[0014] In some embodiments of the utility model, the leaf spring is rotatably connected with the support frame.

[0015] The second aspect of the utility model provides a heavy load trailer, the heavy load trailer comprises the walking device as any one of the above, the heavy load trailer further comprises a bearing frame, the bearing frame is used for supporting heavy load, the walking device is arranged below the bearing frame;

[0016] The bearing frame comprises a plurality of bearing beams, the plurality of bearing beams are sequentially connected to form a second containing space suitable for the heavy load to enter and exit, one side of the second containing space is provided with an openable or closable passage,

[0017] The second containing space is in communication with the first containing space and is used for containing the heavy load.

[0018] In some embodiments of the utility model, the plurality of bearing beams are sequentially connected and enclose the second containing space, wherein at least one adjacent two bearing beams are connected in an open and close mode, the heavy load enters and exits the second containing space through the position of the open and close connection.

[0019] In some embodiments of the utility model, at least two bearing beams are oppositely arranged and each bearing beam is provided with a support area, the plurality of support frames are distributed in the support area, and each support area is provided with at least two bearing wheels.

[0020] The bearing beam is provided with a bearing area between the rotation shafts of the two bearing wheels arranged adjacently.

[0021] In some embodiments of the utility model, the lower part of the bearing beam is provided with a guide groove extending in the height direction, the guide groove is provided with an upper dead point and a lower dead point,

[0022] One end of the support frame is rotatably connected with the bearing beam, and the other end protrudes to form a sliding part, the sliding part is arranged to extend into the guide groove and can slide along the inner wall of the guide groove between the upper dead point and the lower dead point.

[0023] In some embodiments of the utility model, the heavy load trailer further comprises a traction assembly, and the traction assembly is connected with one side of the bearing frame in the walking direction.

[0024] In some embodiments of the present application, the traction assembly and the at least one load bearing beam are integrated.

[0025] In some embodiments of the present application, the traction assembly is provided with a traction ring at one end, and the connection position of the traction ring in the vertical direction is adjustable.

[0026] In some embodiments of the present application, the heavy load trailer further comprises a plurality of foot devices, each of the plurality of foot devices being connected to the load bearing frame and being distributed at different positions of the load bearing frame; and / or,

[0027] The plurality of foot devices are connected to the traction assembly.

[0028] In some embodiments of the present application, the heavy load trailer further comprises a lifting device, the lifting device being arranged on the load bearing beam and being used for supporting the heavy load and adjusting the ground clearance of the heavy load.

[0029] In some embodiments of the present application, the heavy load trailer is used for carrying a cable reel, and the heavy load trailer further comprises a driving device, the driving device being arranged on the load bearing frame and being used for driving the cable reel to rotate. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0031] Figure 1 FIG. 1 is a structural schematic view of a heavy load trailer according to an embodiment of the present application;

[0032] Figure 2 FIG. 2 is a structural schematic view of a load bearing frame of the heavy load trailer according to an embodiment of the present application;

[0033] Figure 3 FIG. 3 is a structural schematic view of the load bearing frame of the heavy load trailer according to an embodiment of the present application, in which a load bearing beam is separated from other parts;

[0034] Figure 4 FIG. 4 is another structural schematic view of the load bearing frame of the heavy load trailer according to an embodiment of the present application;

[0035] Figure 5 FIG. 5 is a partial enlarged view of FIG. 4; Figure 4

[0036] ​Figure 6 Structure diagram of the walking device of the utility model embodiment;

[0037] Figure 7 Structure diagram of the heavy load trailer of the utility model embodiment.

[0038] Reference signs:

[0039] 100, heavy load trailer;

[0040] 200, bearing frame; 210, bearing beam; 211, containing space; 212, bearing area; 213, support area; 220, guide groove; 221, upper dead point; 222, lower dead point;

[0041] 300, suspension device; 310, support frame; 311, first support frame; 312, sliding part; 320, damping assembly; 321, leaf spring;

[0042] 400, bearing wheel assembly; 410, bearing wheel;

[0043] 500, traction assembly; 510, traction ring;

[0044] 600, foot pad device;

[0045] 700, lifting device;

[0046] 800, driving device. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical scheme and advantages of the utility model clearer, the technical scheme of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope protected by the utility model.

[0048] In the description of the utility model, it should be pointed out that, unless otherwise stated, the meaning of "multiple" is two or more than two; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0049] In the description of the utility model, still need to explain, unless another explicit provision and limitation, term " install ", " link ", " connection " should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be direct connection, also can through intermediate medium indirectly connect.

[0050] In combination Figures 1 to 7 , refer to the following examples, the utility model provides a walking device, the walking device is installed in the lower part of heavy duty trailer 100, the walking device includes at least two groups of suspension device 300 and load wheel assembly 400.

[0051] At least two groups of suspension device 300 are distributed on both sides of heavy duty trailer 100 along the walking direction of heavy duty trailer 100, each group of suspension device 300 includes a plurality of support frames 310, the plurality of support frames 310 are arranged along the walking direction of heavy duty trailer 100, and a damping assembly 320 is further arranged on the suspension device 300, and the damping assembly 320 is connected with the support frame 310.

[0052] The suspension device 300 in the walking device of the utility model is arranged on both sides of heavy duty trailer 100, and load wheel assembly 400 is arranged below the suspension device 300 on each side, wherein the first accommodating space is formed between the suspension device 300 distributed on both sides of heavy duty trailer 100, and the first accommodating space can accommodate all or part of the area of heavy load goods.

[0053] The load wheel assembly 400 includes a plurality of load wheels 410, each support frame 310 is rotatably connected with at least one load wheel 410, and the first accommodating space is formed between the load wheel assembly 400 distributed on both sides of heavy duty trailer 100 or between the load wheels 410 distributed on both sides of heavy duty trailer 100, and the first accommodating space can also accommodate all or part of the area of heavy load goods.

[0054] The accommodating space 211 between the load wheel assembly 400 distributed on both sides of heavy duty trailer 100 and the accommodating space 211 between the suspension device 300 distributed on both sides of heavy duty trailer 100 are through, so that most or all of the area of heavy load goods can be accommodated.

[0055] Therefore, the walking device of the utility model is installed in the lower part of heavy duty trailer 100, when the volume of heavy load goods on heavy duty trailer 100 is large, all or part of the area of heavy load goods can be accommodated in the first accommodating space.

[0056] The walking device provided by the utility model adopts the structure form of half bridge, is applied to the heavy load trailer 100, compared with the full bridge type ground plate structure, has obvious advantages, through arranging the first accommodating space, the whole heavy load trailer 100 can bear larger volume goods, such as cable reel and the like larger volume and heavier goods.

[0057] In an embodiment of the utility model, when the walking device is installed on the lower part of the heavy load trailer 100, the bearing frame 200 above the walking device is formed with an accommodating space 211, the accommodating space 211 is communicated with the first accommodating space of the walking device, so that the heavy load trailer 100 has larger space for accommodating heavy load goods, when the heavy load trailer 100 is moved towards the heavy load goods, most of the area of the heavy load goods can be accommodated in the accommodating space 211 of the heavy load trailer 100, and the accommodating space 211 includes the first accommodating space of the walking device and the accommodating space 211 formed by the bearing frame 200.

[0058] Taking the cable reel as the heavy load goods, when it is needed to move the position of the cable reel or adjust the direction of the cable reel, the heavy load trailer 100 is moved towards the cable reel, the cable reel is accommodated in the accommodating space 211 of the heavy load trailer 100, the accommodating space 211 at least includes the first accommodating space in the walking device, the cable reel is lifted by the lifting device and the supporting device on the heavy load trailer 100 to a certain distance from the ground, then the heavy load trailer 100 is moved until the cable reel is moved to the working position or the cable reel is adjusted to the working direction, and finally the cable reel is lowered to the ground or the working frame.

[0059] It can be seen that, when the heavy load goods such as the cable reel with large volume are moved, the walking device and the heavy load trailer 100 provided by the utility model do not need other hoisting equipment, compared with the existing flatbed trailer, the walking device and the heavy load trailer 100 provided by the utility model do not need other hoisting equipment, and the movement or direction adjustment of the heavy load goods including the cable reel can be completed.

[0060] In an embodiment of the utility model, each group of the suspension device 300 is provided with at least two supporting frames 310, the two supporting frames 310 are adjacently arranged along the walking direction of the heavy load trailer 100, one end of each supporting frame 310 is rotatably connected to the lower part of the heavy load trailer 100, the other end is connected to the lower part of the heavy load trailer 100 through the damping assembly 320, each supporting frame 310 is rotatably connected with a bearing wheel 410, and the rotation area of the supporting frame 310 and the bearing wheel 410 is located between the two ends of the supporting frame 310.

[0061] The walking device in the embodiment, the connection mode of the support frame 310 and the shock absorbing assembly 320 with the lower part of the heavy load trailer 100 can absorb most of the vibration in the movement of the heavy load trailer 100, wherein most of the impact vibration can be absorbed through the shock absorbing assembly 320, and one end of the support frame 310 is rotatably connected with the lower part of the heavy load trailer 100, and the other end is connected to the lower part of the heavy load trailer 100 through the shock absorbing assembly 320, that is, when the impact vibration condition is encountered, both ends of the support frame 310 can be adaptively adjusted to reduce the influence of the impact vibration on the heavy load, and the stability of the heavy load is ensured.

[0062] The applicant also needs to emphasize that the walking device provided by the utility model and the heavy load trailer 100 provided with the walking device, wherein the support frame 310 serves as a half bridge of the heavy load trailer 100, on the one hand, through the rotatable connection between the support frame 310 and the lower part of the heavy load trailer 100 and the rotatable connection between the support frame 310 and the bearing wheel 410, the swing position of the support frame 310 can be flexibly adjusted, so that the walking device and the heavy load trailer 100 can adapt to various road conditions, and on the other hand, compared with the full bridge in the existing heavy load trailer 100, the walking device and the heavy load trailer 100 have a larger accommodation space 211 for accommodating the heavy load, because the full bridge in the existing heavy load trailer 100 is transversely arranged and connected to the bearing wheels 410 on both sides of the heavy load trailer 100, and occupies most of the space between the bearing wheels 410 on both sides of the heavy load trailer 100, and the arrangement structure of the walking device, the suspension device 300 and the bearing wheel 410 of the utility model improves the above condition, and the first accommodation space formed between the support frames 310 on both sides of the lower part of the heavy load trailer 100 and the bearing wheels 410 can accommodate part of the heavy load.

[0063] In an embodiment of the utility model, the shock absorbing assembly 320 comprises a plurality of leaf springs 321, both ends of each leaf spring 321 are connected with part of the area on the two support frames 310 arranged adjacently, and in the embodiment, each leaf spring 321 can transmit the absorbed impact vibration to the two support frames 310 arranged adjacently, and the support frame 310 and the bearing wheel 410 are rotatably connected, and the end of the support frame 310 and the lower part of the heavy load trailer 100 are rotatably connected, and the arrangement makes the heavy load trailer 100 on each side more balanced through the adaptive adjustment of the support frame 310.

[0064] The walking device in the embodiment, both ends of the leaf spring 321 are connected with part of the area of the two support frames 310 arranged adjacently, and the middle area of the leaf spring 321 can be connected to the heavy load trailer 100, so that most of the impact vibration can be absorbed through the suspension device 300, and the upper part of the heavy load trailer 100 connected with the middle area of the leaf spring 321, such as the bearing frame 200 and the heavy load on the bearing frame 200, can be in a relatively stable state.

[0065] In one embodiment of the present application, the end of the leaf spring 321 is connected to one end of the support frame 310, and in this embodiment, one end of each support frame 310 is rotatably connected to the lower part of the heavy-duty trailer 100, and the other end of each support frame 310 is connected to the end of the leaf spring 321, so that the suspension device 300 can absorb more impact vibration and be more flexible.

[0066] Each support frame 310 can further include a plurality of first support frames 311.

[0067] In one embodiment of the present application, the leaf spring 321 is rotatably connected to the support frame 310, and the support frame 310 is rotatably connected to the leaf spring 321, so that the support frame 310 has a larger rotation angle and the overall structure is more flexible.

[0068] The second aspect of the present application provides a heavy-duty trailer 100, which includes the walking device according to any one of the above, and further includes a load carrier 200 for supporting heavy goods, wherein the walking device is arranged below the load carrier 200; the load carrier 200 includes a plurality of load beams 210, which are sequentially connected to form a second accommodating space suitable for the heavy goods to enter and exit, one side of the second accommodating space is provided with an openable or closable passage, the second accommodating space is in communication with the first accommodating space, and is used for accommodating the heavy goods.

[0069] In the heavy-duty trailer 100 of the present embodiment, when the heavy-duty trailer 100 is moved towards the heavy goods, the passage on one side of the second accommodating space is opened, and the heavy goods can enter the first accommodating space and the second accommodating space through the passage; after all or most of the heavy goods are accommodated in the first accommodating space and the second accommodating space, the lifting device on the heavy-duty trailer 100 can support and lift the heavy goods to a certain distance from the ground.

[0070] In one embodiment of the present application, the plurality of load beams 210 are sequentially connected and enclose the second accommodating space, wherein at least one adjacent load beam 210 is provided with an opening and closing connection, and the heavy goods enter and exit the second accommodating space through the opening and closing connection. In the heavy-duty trailer 100 of the present embodiment, the load beam 210 is provided with at least one opening and closing connection, and the heavy goods can be accommodated in the second accommodating space at the opening and closing position.

[0071] In one embodiment of the utility model, at least two the bearing beam 210 relative arrangement and each the bearing beam 210 is equipped with support area 213, multiple support frame 310 distributes in support area 213, and each support area 213 is equipped with at least two the bearing wheel 410;Bearing area 212 is equipped on the bearing beam 210, and the bearing area 212 is located between the pivot of two bearing wheels 410 arranged adjacently. The heavy trailer 100 in this embodiment supports heavy goods in the bearing area 212, and makes the whole heavy trailer 100 more stable.

[0072] In one embodiment of the utility model, the lower part of the bearing beam 210 is provided with a guide groove 220 extending in the height direction, the guide groove 220 is provided with an upper stop point 221 and a lower stop point 222, one end of the support frame 310 is rotatably connected with the bearing beam 210, the other end of the support frame 310 is provided with a sliding part 312 protruding into the guide groove 220 and capable of sliding along the inner wall of the guide groove 220 between the upper stop point 221 and the lower stop point 222. In this embodiment, by providing the guide groove 220, the other end of the support frame 310 can slide within a specified range, reducing the possibility of large-angle rotation of the support frame 310, and also avoiding circular rotation of the support frame 310.

[0073] In one embodiment of the utility model, the heavy trailer 100 further comprises a traction assembly 500 connected with one side of the bearing frame 200 in the walking direction. In this embodiment, by providing the traction assembly 500, the entire heavy trailer 100 and heavy goods can be moved, or heavy goods can be transported over a long distance.

[0074] In one embodiment of the utility model, the traction assembly 500 and at least one bearing beam 210 are of an integral structure. In this embodiment, the strength of the entire heavy trailer 100 can be enhanced.

[0075] In one embodiment of the utility model, one end of the traction assembly 500 is provided with a traction ring 510, and the connection position of the traction ring 510 in the vertical direction is adjustable. In this embodiment, by adjusting the position of the traction ring 510, the traction ring 510 of the traction assembly 500 can be conveniently connected with a power device.

[0076] In one embodiment of the utility model, the heavy trailer 100 further comprises multiple foot devices, the multiple foot devices are connected with the bearing frame 200 and distributed at different positions of the bearing frame 200, and / or the multiple foot devices 600 are connected with the traction assembly 500. In this embodiment, by providing the foot devices, stability can be maintained, and the heavy trailer 100 can be stably placed on the ground.

[0077] In an embodiment of the present application, the heavy load trailer 100 further comprises a lifting device 700, which is arranged on the load bearing beam 210 and used to support the heavy load and adjust the ground clearance of the heavy load. In this embodiment, the lifting device 700 can support the heavy load and lift the heavy load, and control the ground clearance of the heavy load.

[0078] In an embodiment of the present application, the heavy load trailer 100 is used to carry a cable reel, and the heavy load trailer 100 further comprises a driving device 700, which is arranged on the load bearing frame 200 and used to drive the cable reel to rotate. In this embodiment, when the cable reel is arranged in the accommodating space 211 of the heavy load trailer 100, the cable reel can be driven to rotate by the driving device 700, so that the cable can be wound and unwound.

[0079] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A walking device, characterized by The walking device is installed on the lower part of the heavy load trailer, and the walking device comprises: at least two groups of suspension devices, which are distributed on both sides of the heavy load trailer along the walking direction of the heavy load trailer, each group of the suspension devices comprises a plurality of support frames arranged along the walking direction of the heavy load trailer, and a damping assembly is further arranged on the suspension device and connected with the support frame; a load bearing wheel assembly comprising a plurality of load bearing wheels, each of the support frames is rotationally connected with at least one of the load bearing wheels; wherein a first accommodating space is formed between the suspension devices distributed on both sides of the heavy load trailer and between the load bearing wheel assemblies; wherein the heavy load trailer is moved in the direction of the heavy load, and most of the region of the heavy load can be accommodated in the first accommodating space.

2. The walking device of claim 1, wherein, Each group of the suspension devices is provided with at least two support frames, and the two support frames are arranged adjacent to each other along the walking direction of the heavy load trailer; one end of each of the support frames is rotationally connected to the lower part of the heavy load trailer, and the other end is connected to the lower part of the heavy load trailer through the damping assembly; each of the support frames is rotationally connected with one of the load bearing wheels, and the rotation region connected with the support frame and the load bearing wheel is located between the two ends of the support frame.

3. The walking device of claim 2, wherein, The damping assembly comprises a plurality of leaf springs, and both ends of each of the leaf springs are connected with the partial region of the two support frames arranged adjacent to each other.

4. The walking device of claim 3, wherein, The end of the leaf spring is connected to one end of the support frame.

5. The walking device of claim 3, wherein, The leaf spring is rotationally connected with the support frame.

6. A heavy duty trailer characterized in that, The heavy load trailer comprises the walking device of any one of claims 1-5, and further comprises a load bearing frame for supporting the heavy load, and the walking device is arranged below the load bearing frame; the load bearing frame comprises a plurality of load bearing beams connected in sequence to form a second accommodating space suitable for the heavy load to enter and exit, one side of the second accommodating space is provided with an openable or closable passage, the second accommodating space is in communication with the first accommodating space and is used for accommodating the heavy load.

7. The heavy duty trailer of claim 6, wherein, The plurality of load bearing beams are connected in sequence and enclose the second accommodating space, wherein at least one adjacent load bearing beam is connected in an openable or closable manner, and the heavy load enters or exits the second accommodating space through the position of the openable or closable connection.

8. The heavy duty trailer of claim 6, wherein, At least two of the load bearing beams are arranged opposite to each other and each of the load bearing beams is provided with a support region, and the plurality of support frames are distributed on the support region, and each of the support regions is provided with at least two load bearing wheels; the load bearing beam is provided with a load bearing region between the rotation shafts of the two load bearing wheels arranged adjacent to each other.

9. The heavy duty trailer of claim 6, wherein, The lower part of the load bearing beam is provided with a guide groove extending in the height direction, and the guide groove is provided with an upper stop point and a lower stop point, one end of the support frame is rotationally connected with the load bearing beam, and the other end is provided with a sliding part protruding into the guide groove and capable of sliding along the inner wall of the guide groove between the upper stop point and the lower stop point.

10. The heavy duty trailer according to any one of claims 6-9, characterized in that, The heavy load trailer further comprises a traction assembly connected to one side of the load carrier along the moving direction.

11. The heavy duty trailer of claim 10, wherein, The traction assembly is integrated with at least one of the load bearing beams.

12. The heavy duty trailer of claim 10, wherein, One end of the traction assembly is provided with a traction ring, and a connection position of the traction ring in the vertical direction is adjustable.

13. The heavy duty trailer of claim 10, wherein, The heavy load trailer further comprises a plurality of foot devices, each of which is connected to the load carrier and distributed at different positions of the load carrier; and / or, The plurality of foot devices are connected to the traction assembly.

14. The heavy duty trailer according to any one of claims 6-9, characterized in that, The heavy load trailer further comprises a lifting device arranged on the load bearing beam, which is used to support the heavy load and adjust the ground clearance of the heavy load.

15. The heavy duty trailer according to any one of claims 6-9, characterized in that, The heavy load trailer is used for carrying a cable reel, and the heavy load trailer further comprises a driving device arranged on the load carrier, which is used to drive the cable reel to rotate.

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