Transportation device suitable for multi-pipe-diameter large-weight HDPE pipelines

Abstract

The transportation device comprises a hanging rod, inclined strut supports are symmetrically arranged on the two sides of the middle of the hanging rod, connectors are arranged at the bottom ends of the inclined strut supports, and the connectors are detachably connected with inclined struts; the face, facing the outer side, of the connector is rotationally connected with an adapter, and the adapter is detachably connected with a wheel. A handle is arranged at the top of the hanging rod, and the position of the handle can be adjusted along the hanging rod. The handle is mounted at the top of the lifting rod and can move on the lifting rod, so that a worker can conveniently adjust the handle to a proper position according to use requirements, and the worker can conveniently push the pushing handle to drive the whole pipeline to move; the two sides of the bottom of the hanging rod are provided with the connectors and the rotating connectors which are matched, the wheels can be supported and rotated, movement of the whole transportation device is facilitated, the connectors and the wheels can be rapidly disassembled and assembled when damage occurs, and the handles can also be rapidly disassembled and assembled.

Description

Technical Field

[0001] This invention relates to the field of auxiliary equipment technology for building construction, specifically a transportation device suitable for heavy HDPE pipes of multiple diameters. Background Technology

[0002] Currently, HDPE pipes are widely used in various underground pipe network systems, such as water supply and drainage systems, sewage systems, and fire protection pipe networks, due to their excellent corrosion resistance, superior flexibility, impact resistance, low flow resistance, reliable connections, and convenient construction. High-performance HDPE pipes, especially PE100 and SDR11 / 12, are extensively used in international engineering projects for underground fire protection pipe network systems. However, these high-performance HDPE pipes are typically 12m in length and weigh 300-400 kg per pipe, making on-site hoisting and transportation a problem. Manually handling the pipes is too heavy and unsafe; loading and unloading with ordinary handcarts is extremely inconvenient; and using cranes significantly increases costs, plus many sites are inaccessible to cranes.

[0003] In the prior art, utility model patent with publication number CN216467877U discloses a pipeline transport trolley, including a support frame, wheels, and a simple load-bearing device. The wheels are located at the bottom of the support frame, defining a load-bearing space for placing pipelines; the simple load-bearing device includes a pipeline connecting device and a lifting device. The pipeline connecting device is used to fix the pipeline, and the lifting device is located on the support frame, with one end fixedly connected to the pipeline connecting device, for raising and lowering the pipeline connecting device.

[0004] The pipeline transport trolley provided by the aforementioned patent has a simple structure and is easy to use, enabling the loading, unloading, and transportation of pipelines. However, the handle of this pipeline transport trolley is not easily adjustable, preventing workers from adjusting it to a suitable position for use. This hinders workers from pushing the pipeline transport trolley in a more comfortable manner. Furthermore, the fixed connections of the various components of this pipeline transport trolley make it difficult to quickly repair in case of malfunction, affecting its normal operation. Summary of the Invention

[0005] The purpose of this invention is to provide a transportation device suitable for multi-diameter, heavy HDPE pipes, aiming to improve the problems of existing pipe transportation trolleys where the handle cannot be adjusted according to usage requirements and where the transportation trolley cannot be quickly repaired when it malfunctions.

[0006] This invention is implemented as follows:

[0007] A transport device suitable for heavy HDPE pipes of multiple diameters includes a boom, with symmetrical diagonal bracing supports on both sides of the middle of the boom. A connector is provided at the bottom of the diagonal bracing support, and the connector is detachably connected to the diagonal bracing support. An adapter is rotatably connected to the outward-facing side of the connector, and a wheel is detachably connected to the adapter. A handle is provided at the top of the boom, and the handle can be adjusted in position along the boom.

[0008] Preferably, the cross-section of the boom is I-shaped, and both ends of the bottom of the boom are provided with lifting joints, and the lifting joints are provided with lifting holes in the middle.

[0009] Preferably, a reinforcing rod is provided between the inclined bracing supports, and a connector is provided vertically downward at the bottom end of the inclined bracing support, with multiple through holes on the connector; the reinforcing rod and the hanging rod are connected by the inclined bracing rod.

[0010] Preferably, the connector has a insertion groove at its top and multiple countersunk holes from top to bottom. The connector is connected to the diagonal brace by bolts. The outer side of the connector has a bearing.

[0011] Preferably, the adapter has an adapter shaft at one end facing the connector, and the adapter shaft is interference-fitted with the bearing.

[0012] Preferably, the adapter has a number of connecting posts evenly distributed on the end facing the wheel, one end of each connecting post passes through the wheel, and the end of the connecting post passing through the wheel is provided with a pressure cap.

[0013] Preferably, the inner side of the wheel is provided with a hub, the center of the hub is provided with a connecting plate, and the connecting plate is provided with a plurality of connecting holes evenly distributed.

[0014] Preferably, the bottom end of the handle is provided with a sliding joint, the middle part of the sliding joint is provided with a sliding opening, the sliding opening is engaged with the rod, and the two sides of the sliding joint are symmetrically provided with clamping knobs aligned with the sliding opening.

[0015] Preferably, it also includes a push rod, wherein the diagonal brace has symmetrical sliding grooves on both sides, and a locking head is provided in the middle of the push rod, the locking head engaging with the diagonal brace, and the push rod can be adjusted up and down along the diagonal brace.

[0016] Preferably, the cross-section of the clamp head is U-shaped, and clamping rods are symmetrically arranged on both sides inside the clamp head. The clamping rods are engaged with the sliding groove, and set screws are symmetrically arranged on both sides of the clamp head.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. This invention installs a handle on the top of the boom, which can be moved on the boom, making it convenient for workers to adjust the handle to a suitable position according to their needs, and making it convenient for workers to push the handle to move the entire pipeline.

[0019] 2. The bottom of the boom of this invention is equipped with connectors and rotating joints on both sides, which can support and rotate the wheels, facilitating the movement of the entire transport device. In case of damage, the connectors and wheels can be quickly disassembled and assembled, and the handles can also be quickly disassembled and assembled, making it convenient to quickly replace parts when the transport device is damaged, without affecting the normal use of the entire transport device.

[0020] 3. By providing two handles, this invention allows for additional personnel to push the pipe from both sides when it is heavy, facilitating the transport of the pipe with the assistance of multiple people. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the lifting rod of the present invention;

[0023] Figure 3 This is a schematic diagram of the connector structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the adapter structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure of the wheel of the present invention;

[0026] Figure 6 This is a schematic diagram of the push rod of the present invention;

[0027] Figure 7 This is a schematic diagram of the handle of the present invention.

[0028] In the diagram: 1. Hanging rod; 11. Diagonal brace; 12. Reinforcing rod; 13. Diagonal brace; 14. Slide groove; 15. Plug-in connector; 16. Through hole; 17. Hanging connector; 18. Hanging hole; 2. Connector; 21. Plug-in groove; 22. Countersunk hole; 23. Bearing; 3. Adapter; 31. Adapter shaft; 32. Connecting column; 33. Pressure cap; 4. Wheel; 41. Wheel hub; 42. Connecting plate; 43. Connecting hole; 5. Push rod; 51. Clamp; 52. Clamping rod; 53. Set screw; 6. Handle; 61. Sliding joint; 62. Slide opening; 63. Tightening knob. Detailed Implementation

[0029] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," 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 invention according to the specific circumstances.

[0030] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details:

[0031] Example 1

[0032] like Figure 1 and Figure 2 As shown, a transport device suitable for heavy-duty HDPE pipes of multiple diameters includes a boom 1, a connector 2, an adapter 3, and wheels 4. The boom 1 is integrally molded from a high-strength alloy material, possessing excellent load-bearing capacity and deformation resistance. The boom 1 can be made of H-beams that meet load-bearing requirements, and its surface is polished smooth and treated with rust prevention. The boom 1 facilitates the lifting of the pipe with a lifting rope, thus facilitating the transport and use of the pipe. Symmetrical diagonal braces 11 are provided on both sides of the middle of the boom 1, with connectors 2 at the bottom of the diagonal braces 11. The connectors 2 are detachably connected to the diagonal braces. The diagonal braces 11 provide support for the boom 1, allowing it to be raised and maintaining the pipe at a certain height above the ground, effectively preventing damage from friction between the pipe and the ground. The connector 2 is rotatably connected to the adapter 3 on its outward-facing side, and the adapter 3 is detachably connected to the wheels 4. Connector 2 works with adapter 3 and wheels 4 to facilitate the rotation of adapter 3 and wheels 4, enabling flexible steering of the device and facilitating the movement of the entire transport device, thereby assisting in moving the pipeline to the designated location. A handle 6 is provided at the top of boom 1. The handle 6 can be adjusted along boom 1, providing a convenient grip on the transport device, allowing workers to push the transport device and pipeline, and move the pipeline.

[0033] Handle 6 can be like Figure 1 and Figure 7 As shown, the handle 6 can be designed as a straight rod, but it can also be designed as an arc-shaped rod, U-shaped rod, etc. Its specific shape can be ergonomically designed to adapt to different grip postures and improve operating comfort. The handle 6 can also be designed as a telescopic rod, allowing for length adjustment as needed, or as a multi-section structure, which can be disassembled for storage or extended to adapt to different operating needs. In addition, a non-slip sleeve made of flexible material can be fitted onto the handle 6 as needed. The surface of the non-slip sleeve has anti-slip textures or raised particles, and it also has sweat-absorbing and shock-absorbing effects, ensuring a stable grip even when hands are wet or during prolonged use, reducing operating fatigue.

[0034] like Figure 2 As shown, the lifting rod 1 has an I-shaped cross-section. Both ends of the bottom of the lifting rod 1 have lifting joints 17, and each lifting joint 17 has a lifting hole 18 in the middle. The lifting joint 17, in conjunction with the lifting hole 18, facilitates the connection of a rope for lifting the pipe, thus enabling convenient lifting of the pipe using a rope. Reinforcing rods 12 are provided between the diagonal bracing supports 11. The reinforcing rods 12 facilitate the stability of the diagonal bracing supports 11, allowing for stable connection with the connector 2, adapter 3, and wheel 4. A plug-in joint 15 is vertically downward-pointing at the bottom of the diagonal bracing support 11, with multiple through holes 16. The connection between the plug-in joint 15 and the through holes 16 allows for detachable connection between the diagonal bracing support 11 and the connector 2. The reinforcing rod 12 is connected to the lifting rod 1 via a diagonal brace 13. The diagonal brace 13 ensures stable operation of the lifting rod 1 and the diagonal bracing support 11.

[0035] like Figure 3 As shown, the connector 2 has a insertion groove 21 at its top, which facilitates the insertion of the connector 15 and the connection between the connector 2 and the diagonal brace 11. The connector 2 also has multiple countersunk holes 22 from top to bottom, allowing it to be connected to the diagonal brace 11 via bolts, thus enabling a detachable connection between the connector 2 and the diagonal brace 11. A bearing 23 is located on the outward-facing side of the connector 2, facilitating the rotational connection between the connector 2 and the wheel 4.

[0036] like Figure 4 As shown, the adapter 3 has an adapter shaft 31 at the end facing the connector 2. The adapter shaft 31 is interference-fitted with the bearing 23. This structure facilitates the rotatable connection between the adapter 3 and the connector 2. A number of connecting posts 32 are evenly distributed at the end of the adapter 3 facing the wheel 4. One end of each connecting post 32 passes through the wheel 4, and a pressure cap 33 is provided at the end of the connecting post 32 passing through the wheel 4. The connecting post 32 and the pressure cap 33 facilitate the detachable connection between the wheel 4 and the adapter 3, making it convenient for the wheel 4 to be disassembled, installed, and replaced.

[0037] like Figure 5 As shown, a hub 41 is provided on the inner side of the wheel 4, and a connecting plate 42 is provided in the middle of the hub 41. Multiple connecting holes 43 are evenly provided on the connecting plate 42. The hub 41 and the connecting plate 42 are used to facilitate the connection between the wheel 4 and the connecting post 32, which makes it easy to disassemble and use the wheel 4. The wheel 4 can be disassembled and assembled according to the usage requirements.

[0038] like Figure 6As shown, the bottom of the handle 6 is provided with a sliding joint 61, and the middle of the sliding joint 61 is provided with a sliding port 62. The cooperation between the sliding joint 61 and the sliding port 62 facilitates the connection of the handle 6 to the boom 1 and also facilitates the adjustment of the handle 6 back and forth along the boom 1. The sliding port 62 is engaged with the boom 1, and the two sides of the sliding joint 61 are symmetrically provided with clamping knobs 63 aligned with the sliding port 62. The clamping knobs 63 are used to fix the position of the handle 6, allowing for flexible adjustment and fixation of the handle 6. To prevent the handle 6 and the sliding joint 61 from accidentally detaching from the boom 1, the two ends of the boom 1 are provided with detachable limiting structures. The limiting structures can have various forms, such as threaded holes at both ends of the boom 1, with limiting bolts installed in the threaded holes. After tightening, they can form a mechanical block to ensure that the sliding joint 61 will not detach from the boom 1 during adjustment. At the same time, the detachable design does not affect the normal disassembly and maintenance of the handle 6.

[0039] Example 2

[0040] like Figure 1 and Figure 2 As shown, a transport device suitable for multi-diameter, heavy-duty HDPE pipes includes a lifting rod 1. The lifting rod 1 is integrally molded from high-strength alloy material, possessing excellent load-bearing capacity and deformation resistance. The lifting rod 1 can be made of H-beams that meet load-bearing requirements, and its surface is polished smooth and treated with rust prevention. The lifting rod 1 facilitates the lifting of the pipe with the help of lifting ropes, thereby facilitating the transport and use of the pipe. Symmetrical diagonal braces 11 are provided on both sides of the middle of the lifting rod 1. Connectors 2 are provided at the bottom of the diagonal braces 11, and the connectors 2 are detachably connected to the diagonal braces. The diagonal braces 11 facilitate the support of the lifting rod 1, allowing it to be raised. An adapter 3 is rotatably connected to the outer side of the connector 2, and a wheel 4 is detachably connected to the adapter 3. The connector 2, in conjunction with the adapter 3 and the wheel 4, facilitates the rotation of the adapter 3 and the wheel 4, thereby facilitating the movement of the entire transport device and assisting in moving the pipe to the designated location. A handle 6 is provided at the top of the boom 1. The handle 6 can be adjusted in position along the boom 1. The handle 6 is convenient for holding the transport device, making it easy for workers to push the transport device and the pipeline, and to move the pipeline.

[0041] Handle 6 can be like Figure 1 and Figure 7 As shown, the handle 6 can be designed as a straight rod, but it can also be designed as an arc-shaped rod, U-shaped rod, etc. Its specific shape can be ergonomically designed to adapt to different grip postures and improve operating comfort. The handle 6 can also be designed as a telescopic rod, allowing for length adjustment as needed, or as a multi-section structure, which can be disassembled for storage or extended to adapt to different operating needs. In addition, a non-slip sleeve made of flexible material can be fitted onto the handle 6 as needed. The surface of the non-slip sleeve has anti-slip textures or raised particles, and it also has sweat-absorbing and shock-absorbing effects, ensuring a stable grip even when hands are wet or during prolonged use, reducing operating fatigue.

[0042] like Figure 2 As shown, the lifting rod 1 has an I-shaped cross-section. Both ends of the bottom of the lifting rod 1 have lifting connectors 17, and each lifting connector 17 has a lifting hole 18 in the middle. The lifting connectors 17 and lifting holes 18 facilitate the connection of ropes for lifting the pipe, thus enabling convenient lifting of the pipe using ropes. Reinforcing rods 12 are provided between the diagonal braces 11. The reinforcing rods 12 facilitate the stability of the diagonal braces 11, allowing for stable connection with the connector 2, adapter 3, and wheel 4. A plug-in connector 15 is vertically downward at the bottom of the diagonal brace 11, with multiple through holes 16. The connection between the plug-in connector 15 and the through holes 16 allows for detachable connection between the diagonal brace 11 and the connector 2. The reinforcing rod 12 is connected to the lifting rod 1 via a diagonal brace 13. The diagonal brace 13 ensures stable connection between the lifting rod 1 and the diagonal brace 11.

[0043] like Figure 3 As shown, the connector 2 has a insertion groove 21 at its top, which facilitates the insertion of the connector 15 and the connection between the connector 2 and the diagonal brace 11. The connector 2 also has multiple countersunk holes 22 from top to bottom, allowing it to be connected to the diagonal brace 11 via bolts, thus enabling a detachable connection between the connector 2 and the diagonal brace 11. A bearing 23 is located on the outward-facing side of the connector 2, facilitating the rotational connection between the connector 2 and the wheel 4.

[0044] like Figure 4 As shown, the adapter 3 has an adapter shaft 31 at the end facing the connector 2. The adapter shaft 31 is interference-fitted with the bearing 23. This structure facilitates the rotatable connection between the adapter 3 and the connector 2. A number of connecting posts 32 are evenly distributed at the end of the adapter 3 facing the wheel 4. One end of each connecting post 32 passes through the wheel 4, and a pressure cap 33 is provided at the end of the connecting post 32 passing through the wheel 4. The connecting post 32 and the pressure cap 33 facilitate the detachable connection between the wheel 4 and the adapter 3, making it convenient for the wheel 4 to be disassembled, installed, and replaced.

[0045] like Figure 5 As shown, a hub 41 is provided on the inner side of the wheel 4, and a connecting plate 42 is provided in the middle of the hub 41. Multiple connecting holes 43 are evenly provided on the connecting plate 42. The hub 41 and the connecting plate 42 are used to facilitate the connection between the wheel 4 and the connecting post 32, which makes it easy to disassemble and use the wheel 4. The wheel 4 can be disassembled and assembled according to the usage requirements.

[0046] like Figure 6As shown, the bottom of the handle 6 is provided with a sliding joint 61, and the middle of the sliding joint 61 is provided with a sliding opening 62. The cooperation between the sliding joint 61 and the sliding opening 62 facilitates the connection of the handle 6 to the boom 1 and also facilitates the adjustment of the handle 6 back and forth along the boom 1. The sliding opening 62 is engaged with the boom 1, and the two sides of the sliding joint 61 are symmetrically provided with clamping knobs 63 aligned with the sliding opening 62. The clamping knobs 63 are used to fix the position of the handle 6, allowing for flexible adjustment and fixation of the handle 6. To prevent the handle 6 and the sliding joint 61 from accidentally detaching from the boom 1, the two ends of the boom 1 are provided with detachable limiting structures. The limiting structures can have various structural forms, such as a U-shaped clamp and a fixing bolt threaded on the U-shaped clamp. The U-shaped clamp is clamped to the end of the boom 1 by the fixing bolt. After the U-shaped clamp is installed, it can form a mechanical block to ensure that the sliding joint 61 will not detach from the boom 1 during adjustment. At the same time, the detachable design does not affect the normal disassembly and maintenance of the handle 6.

[0047] like Figure 1 , Figure 2 and Figure 6 As shown, the device also includes a push rod 5. The diagonal brace 13 has symmetrically arranged sliding grooves 14 on both sides. The diagonal brace 13, in conjunction with the sliding grooves 14, facilitates the installation of the push rod 5 and allows for easy adjustment and use. A locking head 51 is located in the middle of the push rod 5, which engages with the diagonal brace 13. The push rod 5 can be adjusted up and down along the diagonal brace 13. When the pipeline is heavy, two workers can be positioned on either side of the lifting rod 1 to move the entire transport device using the push rod 5. The locking head 51 has a U-shaped cross-section, and symmetrically arranged locking rods 52 are located on both sides inside the locking head 51. The locking rods 52 engage with the sliding grooves 14, ensuring stable use of the locking head 51 and facilitating the up-and-down adjustment of the push rod 5. Set screws 53 are symmetrically arranged on both sides of the locking head 51 to secure the position of the push rod 5 and ensure stable use.

[0048] Working principle: The symmetrically arranged diagonal braces 11 on both sides of the middle of the hanger 1 provide stable support for the hanger 1. The plug 15 at the bottom of the diagonal brace 11 is inserted into the plug groove 21 of the connector 2. The two are then detachably fixed by bolts passing through the countersunk hole 22 of the connector 2 and the through hole 16 of the plug 15. The outer side of the connector 2 is interference-fitted to the adapter shaft 31 of the adapter 3 through the bearing 23. The adapter 3 is detachably connected to the wheel 4 by the connecting column 32 and the pressure cap 33, forming a flexible support structure. The lifting joints 17 at both ends of the bottom of the hanger 1 and the lifting hole 18 in the middle are used to connect the lifting rope, which facilitates the lifting and fixing of multi-diameter and heavy HDPE pipes. The handle 6 at the top of the boom 1 is engaged with the boom 1 via the sliding joint 62 of the sliding joint 61. The position can be adjusted back and forth along the boom 1 and fixed by the clamping knob 63, making it easy for workers to hold and push the device. The sliding grooves 14 on both sides of the diagonal brace 13, together with the U-shaped clamp 51 and clamp 52 of the push rod 5, realize the up and down adjustment of the push rod 5. The position of the push rod 5 is fixed by the set screw 53. When the pipeline is heavy, two workers can push it with the help of the push rod 5 on both sides of the boom 1. At the same time, the reinforcing rod 12 and the diagonal brace 13 further ensure the connection stability of the boom 1 and the diagonal brace 11. Finally, through the coordinated action of lifting and fixing, flexible movement and auxiliary pushing, the pipeline is efficiently transported to the designated location.

[0049] In summary, compared with the existing technology, this application, by installing a handle 6 at the top of the boom 1, allows the handle 6 to move on the boom 1, making it convenient for workers to adjust the handle 6 to a suitable position according to usage needs, and facilitating the movement of the entire pipeline by pushing the handle. Connectors 2 are provided on both sides of the bottom of the boom 1, which, in conjunction with swivel joints, can support and rotate the wheels 4, facilitating the movement of the entire transport device. In case of damage, the connectors 2 and wheels 4 can be quickly disassembled and reassembled, and the handle 6 can also be quickly disassembled and reassembled, facilitating rapid replacement of parts when the transport device is damaged, without affecting the normal use of the entire transport device.

[0050] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A transport device suitable for use with multi-diameter heavy weight HDPE pipes, comprising a boom (1), characterized in that, The middle part of the boom (1) is provided with two symmetrical diagonal support brackets (11), the bottom end of the diagonal support bracket (11) is provided with a connecting head (2), the connecting head (2) is detachably connected with the diagonal support, one side of the connecting head (2) facing the outside is rotatably connected with an adapter (3), the adapter (3) is detachably connected with a wheel (4), and the top of the boom (1) is provided with a handle (6).

2. A transport device for multi-diameter heavy weight HDPE pipes as claimed in claim 1, wherein, The cross section of the boom (1) is in the shape of an I-beam, the bottom surface of the boom (1) is provided with a lifting head (17) at the front end and the rear end, and the lifting head (17) is provided with a lifting hole (18) in the middle part.

3. A transport device for multi-diameter heavy weight HDPE pipes as claimed in claim 2, wherein, The diagonal support brackets (11) are provided with a reinforcing rod (12) therebetween, the bottom end of the diagonal support bracket (11) is vertically provided with a plug-in head (15), and a plurality of perforations (16) are arranged on the plug-in head (15); the reinforcing rod (12) is connected with the boom (1) through a diagonal support rod (13).

4. A transport device for heavy weight HDPE pipes of various diameters according to claim 1, characterized in that, The top end of the connecting head (2) is provided with a plug-in groove (21), a plurality of counterbores (22) are arranged on the connecting head (2) from top to bottom, the connecting head (2) is connected with the diagonal support bracket (11) through a bolt, and one side of the connecting head (2) facing the outside is provided with a bearing (23).

5. A transport device for heavy weight HDPE pipes of various diameters according to claim 4, characterized in that, One end of the adapter (3) facing the connecting head (2) is provided with an adapter shaft (31), and the adapter shaft (31) is connected with the bearing (23) in an interference fit.

6. A transport device for multi-diameter heavy weight HDPE pipes as claimed in claim 5, wherein, A plurality of connecting columns (32) are uniformly arranged at one end of the adapter (3) facing the wheel (4), one end of the connecting column (32) penetrates the wheel (4), and the end of the connecting column (32) penetrating the wheel (4) is provided with a pressing cap (33).

7. A transport device for multi-diameter heavy weight HDPE pipes as claimed in claim 1, wherein, The inner side of the wheel (4) is provided with a hub (41), the hub (41) is provided with a connecting plate (42) in the middle part, and a plurality of connecting holes (43) are uniformly arranged on the connecting plate (42).

8. A transport device for heavy weight HDPE pipes of various diameters according to claim 1, characterized in that, The bottom end of the handle (6) is provided with a sliding joint (61), the middle part of the sliding joint (61) is provided with a sliding opening (62), the sliding opening (62) is clamped on the boom (1), and the sliding joint (61) is symmetrically provided with a pressing knob (63) on the two sides of the sliding opening (62).

9. A transport device for heavy weight HDPE pipes of various diameters according to claim 3, characterized in that, A push rod (5) is further arranged, the two sides of the diagonal support rod (13) are symmetrically provided with a sliding groove (14), the middle part of the push rod (5) is provided with a clamping head (51), the clamping head (51) is clamped on the diagonal support rod (13), and the push rod (5) can be adjusted up and down along the diagonal support rod (13).

10. A transport device for multi-diameter heavy weight HDPE pipes as claimed in claim 9, wherein, The clamping head (51) is in the shape of a U-shaped structure, the two sides of the clamping head (51) are symmetrically provided with a clamping rod (52), the clamping rod (52) is clamped on the sliding groove (14), and the two sides of the clamping head (51) are symmetrically provided with a top wire (53).

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