Large diameter pipe transport
By designing a V-shaped transport device consisting of a rotatable limiting rod and a support rod, the problem of poor versatility of large-diameter circular pipe transport devices when adapting to different pipe diameters and lengths is solved, achieving flexible adaptation and stable transport, and reducing equipment adjustment costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN CONSTRUCTION ENGINEERING GROUP CO LTD
- Filing Date
- 2025-09-09
- Publication Date
- 2026-06-23
AI Technical Summary
Existing large-diameter circular pipe transport devices have poor versatility when adapting to different pipe diameters and lengths, making them difficult to adapt flexibly, and the cost of equipment adjustment or replacement is high.
A device comprising a first transport frame and a second transport frame is designed. A V-shaped structure is formed by a rotatable limiting rod and a support rod. By adjusting the angle between the limiting rod and the support rod and the spacing of the transport frames, it can adapt to round pipes of different diameters and lengths, and wear is reduced by a buffer pad.
It enables flexible adaptation to round pipes of different diameters and lengths, simplifies equipment adjustment, reduces transportation costs, reduces wear and collision damage, and improves the stability and reliability of transportation.
Smart Images
Figure CN224392469U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to pipeline transportation technical field, concretely relates to a large diameter pipe conveying device. BACKGROUND
[0002] The Krah pipe is a high-density polyethylene winding structure wall pipe formed by hot winding. The wall pipe is made of high-density polyethylene resin as the main raw material, adopts the hot winding process, and is made of a polypropylene (PP) single-wall corrugated pipe as a supporting structure to form a special structure wall pipe with high external pressure resistance.
[0003] The existing small-scale round pipes usually use metal pipes as the main frame, are provided with two large tires as the moving parts, and are provided with curved metal parts on the metal pipes for clamping the pipes. The large-diameter round pipes are pulled by vehicles and are assisted to be carried.
[0004] However, the above-mentioned commonly used device has the following problems in the use process: when the pipeline is transported, there is no professional braking and limiting safety design, and it is difficult to flexibly adapt to round pipes with different diameters and lengths, and the universality is poor, and the equipment adjustment or replacement cost is increased when different pipelines are transported for many times. UTILITY MODEL CONTENTS
[0005] The utility model solves the technical problems that the round pipes with different diameters and lengths are difficult to flexibly adapt, and the universality is poor.
[0006] The utility model adopts the technical scheme that a large-diameter round pipe conveying device comprises a first conveying frame and a second conveying frame, the front and rear ends of the first conveying frame and the second conveying frame are provided with two groups of mutually symmetrical fixing assemblies, the fixing assembly comprises a supporting rod, the top end of the supporting rod is provided with a limiting rod, the limiting rod is hinged to the supporting rod through a rotating shaft, the part of the rotating shaft extending out of the supporting rod is provided with a limiting groove, and the supporting rod is provided with a limiting assembly corresponding to the limiting groove; the front end of the first conveying frame is provided with a connecting frame, the bottom of the first conveying frame is fixedly provided with a support, and the rear end of the first conveying frame is provided with adjusting holes at equal intervals; the rear end of the second conveying frame is provided with a moving wheel, the front end of the second conveying frame is fixedly provided with an extension rod, the front end of the extension rod is provided with a positioning hole, the extension rod is inserted into the first conveying frame, the positioning hole corresponds to the adjusting hole, and the positioning hole and the adjusting hole are connected through bolts.
[0007] Furthermore, the limiting component includes a fixed frame and a limiting frame. The fixed frame is fixedly installed on the side wall of the support rod. A sliding rod slides through the fixed frame. The limiting frame is fixedly installed on the top of the sliding rod. A connecting ring is provided on the sliding rod. The connecting ring is connected to the fixed frame by a spring. Under the action of the spring, the limiting frame is engaged in the limiting groove.
[0008] Furthermore, the limiting frame has an arc structure that is compatible with the limiting groove.
[0009] Furthermore, both the limiting groove and the limiting frame are equipped with anti-slip pads.
[0010] Furthermore, the support rods are arranged at an angle, and the support rods of the two sets of symmetrical fixing components form a V-shaped structure.
[0011] Furthermore, buffer pads are affixed to the inner walls of both the support rod and the limiting rod.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] (1) In this utility model, the limiting rod and the support rod are hinged and can rotate freely around the pivot. When transporting pipes of different diameters, the limiting rod can be tightly attached to the outer wall of the pipe by adjusting the angle between the limiting rod and the support rod. The external dimensions of pipes of different diameters can be adapted according to the different angles. At the same time, the position of the limiting rod is fixed by the limiting component to maintain the stability of the angle.
[0014] (2) By extending the extension rod, the positioning hole is aligned with and fixed to the adjustment hole far from the rear end of the first transport frame, thereby increasing the distance between the two transport frames and ensuring that both ends of the pipe can be stably supported on the first transport frame and the second transport frame respectively, thus avoiding the difficulty of placing the long pipe stably on the first transport frame and the second transport frame. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;
[0016] Figure 2 for Figure 1 A schematic diagram of the structure of the first transport frame in the embodiment;
[0017] Figure 3 for Figure 1 A schematic diagram of the structure of the second transport frame in the embodiment;
[0018] Figure 4 for Figure 3 Schematic diagram of the structure of the fixed component;
[0019] Figure 5 for Figure 4 Enlarged schematic diagram of the middle limiting component;
[0020] Figure 6 For Figure 3 The fixed assembly is shown in the expansion structure diagram.
[0021] The figure mark is explained:
[0022] 1, the first transport frame; 11, the support; 12, the connecting frame; 13, the adjusting hole; 2, the second transport frame; 21, the moving wheel; 22, the extension rod; 23, the positioning hole; 3, the fixed assembly; 31, the support rod; 32, the limiting rod; 33, the rotating shaft; 331, the limiting groove; 34, the limiting assembly; 341, the fixed frame; 342, the sliding rod; 343, the spring; 344, the connecting ring; 345, the limiting frame; 4, the buffer pad. DETAILED DESCRIPTION
[0023] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.
[0024] Referring Figures 1 to 6 , the utility model provides a large diameter pipe transport device, including first transport frame 1 and second transport frame 2, first transport frame 1 and second transport frame 2 both ends are equipped with two groups of fixed assembly 3 that are mutually symmetrical, fixed assembly 3 includes support rod 31, the top of support rod 31 is installed with limiting rod 32, limiting rod 32 is hinged with support rod 31 through rotating shaft 33, the part of rotating shaft 33 that extends support rod 31 is equipped with limiting groove 331, support rod 31 is equipped with limiting assembly 34 corresponding with limiting groove 331;The front end of first transport frame 1 is equipped with connecting frame 12, and first transport frame 1 is connected with transport carrier through connecting frame 12, and the bottom of first transport frame 1 is fixedly installed with support 11, and the rear end of first transport frame 1 is equidistantly equipped with adjusting hole 13;The rear end of second transport frame 2 is installed with moving wheel 21, and the front end of second transport frame 2 is fixed with extension rod 22, and the front end of extension rod 22 is equipped with positioning hole 23, and extension rod 22 is inserted in first transport frame 1, and positioning hole 23 corresponds with adjusting hole 13 and is connected by bolt.
[0025] In this embodiment, the limiting component 34 includes a fixing frame 341 and a limiting frame 345. The fixing frame 341 is fixedly installed on the side wall of the support rod 31. A sliding rod 342 slides through the fixing frame 341. The limiting frame 345 is fixedly installed on the top end of the sliding rod 342. A connecting ring 344 is provided on the sliding rod 342. The connecting ring 344 is connected to the fixing frame 341 by a spring 343. Under the action of the spring, the limiting frame 345 is engaged in the limiting groove 331. The limiting frame 345 has an arc structure and is adapted to the limiting groove 331. Anti-slip pads are provided on both the limiting groove 331 and the limiting frame 345.
[0026] Specifically, the limiting rod 32 in the device is hinged to the support rod 31 via the rotating shaft 33, allowing the limiting rod 32 to rotate freely around the rotating shaft 33. When transporting large-diameter round pipes, the operator can rotate the limiting rod 32 to unfold it and form a certain angle with the support rod 31. The pipe is then placed on the transport frame, and the limiting rod 32 is rotated in the opposite direction to make it fit tightly against the outer wall of the pipe from the top. No parts need to be replaced; the adaptation of pipes of different diameters can be completed simply by rotating the limiting rod 32 and operating the limiting assembly 34. The operation is simple and convenient, and the adaptation range is wide, covering most commonly used large-diameter round pipes. The operator pulls the slide rod 342, which moves the connecting ring 344 away from the rotating shaft 33 and compresses the spring 343. This facilitates subsequent control of the limit rod 32's rotation. Once the limit rod 32 has rotated to the appropriate angle, the slide rod 342 is released. The spring 343 rebounds, causing the connecting ring 344 and the slide rod 342 to move towards the rotating shaft 33, allowing the limit frame 345 to engage in the limit groove 331. Simultaneously, the anti-slip pads on the limit groove 331 and the limit frame 345 contact and press against each other, further enhancing connection stability and preventing unexpected rotation of the limit frame 345 due to transportation vibrations. This fixes the position of the limit rod 32, maintains the stability of the angle between the limit rod 32 and the support rod 31, and ensures continuous and effective fixation of pipes of different diameters.
[0027] When transporting long, large-diameter circular pipes, the distance between the first transport frame 1 and the second transport frame 2 needs to be adjusted. An extension rod 22 is fixed to the front end of the second transport frame 2 and inserted into the first transport frame 1. Adjustment holes 13 are equidistantly spaced on the rear end of the first transport frame 1, and a positioning hole 23 is located at the front end of the extension rod 22. The operator first removes the bolts connecting the adjustment holes 13 and the positioning holes 23, then pulls the second transport frame 2 outwards. The extension rod 22 moves synchronously with the second transport frame 2, lengthening its length outside the first transport frame 1 until the positioning hole 23 corresponds to the adjustment hole 13 furthest from the rear end of the first transport frame 1. At this point, the distance between the first transport frame 1 and the second transport frame 2 increases. Then, the bolts are passed through the positioning holes 23 and the corresponding adjustment holes 13 and tightened, completing the fixing of the distance between the two transport frames. The increased distance allows both ends of the pipe to be stably supported and attached to the first transport frame 1 and the second transport frame 2, preventing long pipes from being partially suspended due to insufficient support at both ends, making stable placement difficult.
[0028] In this embodiment, the support rods 31 are arranged at an angle, and the support rods 31 of the two sets of symmetrical fixing components 3 form a V-shaped structure. Regardless of the pipe diameter being transported, when the pipe is placed between the two sets of V-shaped support rods 31, the pipe's own weight will cause the outer wall of the pipe to automatically conform to the inner wall of the V-shaped structure, forming a self-positioning effect. This helps the auxiliary limiting rod 32 to better conform to the outer wall of the pipe, improving the positioning accuracy for pipes of different diameters and further ensuring the compatibility effect.
[0029] In this embodiment, buffer pads 4 are attached to the inner walls of both the support rod 31 and the limiting rod 32. When adapting to pipes of different diameters, the buffer pads 4 can fit tightly against the outer wall of the pipe, avoiding hard contact between the pipe and the support rod 31 and the limiting rod 32. At the same time, the flexible material of the buffer pads 4 can absorb the impact force generated by transportation vibration, reducing wear and collision damage to pipes of different diameters during transportation, further improving the reliability of the device for adapting to pipes of different diameters, and ensuring the performance of the pipes after transportation.
[0030] The specific working process of this embodiment is as follows:
[0031] Place the first transport frame 1 and the second transport frame 2 on a flat ground. The support 11 and the moving wheel 21 help to maintain balance. Make a preliminary judgment on the length of the pipe. Remove the bolts of the adjustment hole 13 and the positioning hole 23. Pull the second transport frame 2 to extend the extension rod 22. After the positioning hole 23 is aligned with the matching adjustment hole 13, tighten the bolts to fix the distance between the first transport frame 1 and the second transport frame 2.
[0032] Pull the slide bar 342 to compress the spring 343, causing the limiting frame 345 to disengage from the limiting groove 331. Rotate the limiting rod 32 to unfold it, and place the pipe on the V-shaped support rod 31 of the two sets of fixing components 3. The pipe uses gravity to adhere to the inner wall of the V-shaped support rod 31 to achieve self-positioning. Rotate the limiting rod 32 in the opposite direction to make the buffer pad 4 adhere to the outer wall of the pipe. Release the slide bar 342, and the spring 343 rebounds to make the limiting frame 345 snap into the limiting groove 331. The anti-slip pad is squeezed to enhance stability and fix the angle between the limiting rod 32 and the support rod 31.
[0033] Fix the connecting frame 12 to the transport carrier. The transport carrier will drive the device to transport the pipeline. After reaching the destination, disconnect the connection with the transport carrier, pull the slide bar 342 to release the limit, rotate the limit bar 32 to unfold, and then unload the pipeline.
[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.
Claims
1. A large-diameter circular tube conveying device, characterized in that: The system includes a first transport frame and a second transport frame. Both the first and second transport frames have two sets of symmetrical fixing components at their front and rear ends. Each fixing component includes a support rod, with a limiting rod mounted at the top of the support rod. The limiting rod is hinged to the support rod via a rotating shaft, and a limiting groove is formed at the part of the rotating shaft extending out of the support rod. A limiting component corresponding to the limiting groove is provided on the support rod. The first transport frame has a connecting frame at its front end and a bracket fixedly mounted at its bottom. Adjustment holes are equidistantly spaced at the rear end of the first transport frame. The second transport frame has casters mounted at its rear end and an extension rod fixed at its front end. The extension rod has a positioning hole at its front end, and the extension rod is inserted into the first transport frame. The positioning hole corresponds to the adjustment hole and is connected by bolts.
2. The large-diameter circular tube conveying device according to claim 1, characterized in that: The limiting assembly includes a fixed frame and a limiting frame. The fixed frame is fixedly installed on the side wall of the support rod. A sliding rod slides through the fixed frame. The limiting frame is fixedly installed on the top of the sliding rod. A connecting ring is provided on the sliding rod. The connecting ring is connected to the fixed frame by a spring. Under the action of the spring, the limiting frame is engaged in the limiting groove.
3. The large-diameter circular tube conveying device according to claim 2, characterized in that: The limiting frame has an arc structure that is compatible with the limiting groove.
4. The large-diameter circular tube conveying device according to claim 3, characterized in that: Both the limiting groove and the limiting frame are equipped with anti-slip pads.
5. A large-diameter circular tube conveying device according to any one of claims 1-4, characterized in that: The support rods are arranged at an angle, and the support rods of the two sets of symmetrical fixing components form a V-shaped structure.
6. A large-diameter circular tube conveying device according to any one of claims 1-4, characterized in that: Both the support rod and the limiting rod have cushioning pads attached to their inner walls.