Anti-collision device for nodular cast iron pipe

By installing buffer wheels at the ends of the track, the problem of thin-walled damage caused by hard impacts on cast pipes was solved, thus improving the safety and quality of cast pipes.

CN224211840UActive Publication Date: 2026-05-08SAINT GOBAIN PIPELINES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SAINT GOBAIN PIPELINES CO LTD
Filing Date
2025-05-16
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

The hard impact of existing cast iron pipes on the track end causes damage to the thin pipe wall and outer coating, posing a safety hazard and reducing product quality.

Method used

The device uses a ductile iron pipe anti-collision device, including a connecting seat and a buffer wheel. The buffer wheel is made of rubber and is connected to the end of the track via a rotating shaft to provide flexible contact to avoid hard collisions.

Benefits of technology

It effectively protects the tube body and outer coating, avoids hard collisions between the track end and the tube body, and improves the quality of the product leaving the factory.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224211840U_ABST
    Figure CN224211840U_ABST
Patent Text Reader

Abstract

The utility model discloses a nodular cast iron pipe anti-collision device which comprises a connecting base and a buffering wheel, the connecting base is fixedly arranged at the end of a track, the buffering wheel is cylindrical, a rotating hole is formed in the axis of the buffering wheel, a rotating shaft is arranged in the rotating hole, and the rotating shaft is fixedly arranged on the connecting base; by means of the arrangement, the pipe body can be prevented from sliding off at the end of the rail, meanwhile, hard collision between the end of the rail and the pipe body is avoided, the pipe body and the outer coating of the pipe body are protected to the maximum extent, and the delivery quality of products is improved.
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Description

Technical Field

[0001] This utility model relates to the field of ductile iron pipe production technology, specifically to an anti-collision device for ductile iron pipes. Background Technology

[0002] Currently, the entire cast iron pipe industry typically stacks cast iron pipes on rails for transshipment or storage during the entire production, transportation, and storage process. However, with the development strategy of environmental protection and energy conservation, existing cast iron pipes are becoming thinner and lighter while ensuring their service life. This directly increases the risk of damage from collisions between thin-walled cast iron pipes and rails, especially at the ends of the rails.

[0003] To prevent cast pipes from falling from the end of the track and causing serious safety hazards, the existing method is to weld a wedge-shaped iron to the end of the track to block and limit the pipe body at the end of the track to prevent it from falling. However, when the cast pipe comes into contact with the wedge-shaped iron, the thin pipe wall or the outer coating of the pipe wall will generally be damaged due to the hard impact, thereby reducing the product quality of the cast pipe.

[0004] In view of the above-mentioned defects, the creator of this utility model has finally obtained this utility model after a long period of research and practice. Utility Model Content

[0005] To address the aforementioned technical deficiencies, the present invention provides a ductile iron pipe anti-collision device, comprising a connecting seat and a buffer wheel. The connecting seat is fixedly mounted on the end of the track, and the buffer wheel is cylindrical with a rotating hole on its axis. A rotating shaft is disposed within the rotating hole, and the rotating shaft is fixedly mounted on the connecting seat.

[0006] Preferably, the connecting seat includes two side plates and a bottom plate. The bottom plate is fixed to the bottom of the track. The two side plates are symmetrically and vertically fixed to both ends of the bottom plate. The two side plates are fixed to both sides of the track, and the upper end surface of the side plate does not exceed the upper edge surface of the track.

[0007] Preferably, a connecting plate is provided on the end of the side plate away from the track, and a connecting hole is provided on the connecting plate. The two ends of the rotating shaft are respectively disposed in the connecting holes of the two side plates, and the axis of the connecting hole extends beyond the upper edge of the track.

[0008] Preferably, both ends of the rotating shaft are threaded with limit nuts, and the two limit nuts are respectively disposed on both sides of the connecting seat.

[0009] Preferably, the two connecting plates are connected by a fixing plate to form a U-shaped frame structure. An adjusting plate is fixedly connected to the ends of the two side plates away from the track. The adjusting plate and the fixing plate are arranged in parallel. An adjusting rod is vertically arranged on the fixing plate. An adjusting hole is provided on the adjusting plate. The adjusting rod is arranged in the adjusting hole. An elastic element is provided between the adjusting plate and the fixing plate.

[0010] Preferably, the adjusting plate is vertically fixedly connected to both the side plate and the bottom plate.

[0011] Preferably, the elastic element is configured as a buffer spring, and the buffer spring is sleeved on the adjusting rod. The two ends of the buffer spring are respectively in contact with the adjusting plate and the fixed plate to provide elastic repulsion.

[0012] Preferably, the end of the adjusting rod away from the fixed plate is threaded with an adjusting nut, and the adjusting plate is disposed between the adjusting nut and the buffer spring.

[0013] Similarly, the elastic element is a rubber pad with a fixing hole, and the adjusting rod is disposed in the fixing hole.

[0014] Preferably, the fixing plate is further provided with a guide rod vertically, the adjusting plate is provided with a guide hole, the guide rod and the adjusting rod are arranged in parallel, and the guide rod is disposed in the guide hole.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting up this utility model, the tube body can be restricted from sliding down at the end of the track, while avoiding hard collision between the end of the track and the tube body, thus maximizing the protection of the tube body and the outer coating of the tube body and improving the quality of the product leaving the factory. Attached Figure Description

[0016] Figure 1 This is a front view of the structure of Embodiment 1 of the ductile iron pipe anti-collision device;

[0017] Figure 2 This is a structural side view of Embodiment 1 of the ductile iron pipe anti-collision device;

[0018] Figure 3 This is a front view of the structure of Embodiment 2 of the ductile iron pipe anti-collision device;

[0019] Figure 4 This is a top view of the structure of Embodiment 2 of the ductile iron pipe anti-collision device.

[0020] The numbers in the image represent:

[0021] 1-Connecting seat; 2-Buffer wheel; 3-Rail; 4-Rotating shaft; 5-Limit nut; 11-Side plate; 12-Base plate; 13-Connecting plate; 14-Fixing plate; 15-Adjusting plate; 16-Adjusting rod; 17-Elastic element; 18-Guide rod; 19-Adjusting nut. Detailed Implementation

[0022] The above-mentioned and other technical features and advantages of this utility model will be described in more detail below with reference to the accompanying drawings.

[0023] Example 1

[0024] like Figure 1 and Figure 2 As shown, Figure 1 This is a front view of the structure of the ductile iron pipe anti-collision device in this embodiment; Figure 2 This is a side view of the structure of the ductile iron pipe anti-collision device in this embodiment.

[0025] The ductile iron pipe anti-collision device of this utility model includes a connecting seat 1 and a buffer wheel 2. The connecting seat 1 is fixedly installed at the end of the track 3. The buffer wheel 2 is cylindrical, and a rotating hole is provided on the axis of the buffer wheel 2. A rotating shaft 4 is provided in the rotating hole, and the rotating shaft 4 is fixedly installed on the connecting seat 1. The rubber buffer wheel 2 limits the contact of the pipe body on the track 3, thereby avoiding hard contact with the pipe body. At the same time, the rotatable buffer wheel 2 can also prevent scratching of the outer coating of the pipe body when the pipe body at the end of the track 3 is removed.

[0026] Specifically, the connecting seat 1 includes two side plates 11 and a bottom plate 12. The bottom plate 12 is fixedly welded to the bottom of the track 3. The two side plates 11 are symmetrically and vertically fixed to both ends of the bottom plate 12. The two side plates 11 are welded and fixed to both sides of the track 3, and the upper end surface of the side plate 11 does not exceed the upper edge surface of the track 3, thereby avoiding collision between the tube on the track 3 and the edge of the side plate 11. The connecting seat 1 with this structure can ensure strong overall stability to effectively support the buffer wheel 2.

[0027] A connecting plate 13 is provided on the end of the side plate 11 away from the track 3. The connecting plate 13 is provided with a connecting hole. The two ends of the rotating shaft 4 are respectively set in the connecting holes of the two side plates 11, thereby realizing the rotational connection between the buffer wheel 2 and the connecting seat 1. The axis of the connecting hole extends beyond the upper edge of the track 3, ensuring that the buffer wheel 2 can have a large contact surface with the tube on the track 3 for buffering collision.

[0028] In this embodiment, the buffer wheel 2 adopts a cylindrical structure made of integral rubber, and the buffer wheel 2 as a whole provides contact cushioning.

[0029] Generally, both ends of the rotating shaft 4 are threaded with limit nuts 5. The two limit nuts 5 are respectively set on both sides of the connecting seat 1, so as to fix the position of the rotating shaft 4 on the connecting seat 1, and at the same time facilitate the disassembly and replacement of the buffer wheel 2.

[0030] By using the design of this utility model, the tube body can be restricted from sliding down at the end of the track 3, while avoiding hard collisions between the end of the track 3 and the tube body, thus maximizing the protection of the tube body and the outer coating of the tube body and improving the quality of the product leaving the factory.

[0031] Example 2

[0032] When the track 3 is used as a storage rack to hold the tube for a long time, the tube at the end will press against the buffer wheel 2 for a long time. The buffer wheel 2, which is made of whole rubber material in Embodiment 1, is prone to deformation, which will cause uneven thickness of the wheel body, resulting in poor buffering effect, or deform the rotating hole and prevent it from rotating effectively.

[0033] like Figure 3 and Figure 4 As shown, Figure 3 This is a front view of the structure of the ductile iron pipe anti-collision device in this embodiment; Figure 4 This is a top view of the structure of the ductile iron pipe anti-collision device in this embodiment.

[0034] In this embodiment, the buffer wheel 2 includes a cylindrical wheel body and a buffer layer wrapped around the outer circumferential surface of the wheel body. The buffer layer is made of rubber, and the wheel body is made of metal. A buffer assembly is provided on the connecting seat 1 to provide elastic support for the buffer wheel 2, reduce the deformation of the buffer wheel 2 caused by long-term compression of the pipe, and thus improve the service life of the buffer wheel 2.

[0035] The two connecting plates 13 are connected by a fixing plate 14 to form a U-shaped frame structure. The connecting plate 13 can move linearly along the upper edge of the corresponding side plate 11. An adjusting plate 15 is fixedly connected to the ends of the two side plates 11 away from the track 3. The adjusting plate 15 and the fixing plate 14 are arranged in parallel. An adjusting rod 16 is vertically arranged on the fixing plate 14. An adjusting hole is provided on the adjusting plate 15. The adjusting rod 16 is arranged in the adjusting hole. An elastic element 17 is provided between the adjusting plate 15 and the fixing plate 14. When the buffer wheel 2 is squeezed, the elastic element 17 is driven to be compressed, thereby reducing the impact received by the buffer wheel 2.

[0036] The adjusting plate 15 is vertically fixedly connected to both the side plate 11 and the bottom plate 12 to improve the overall structural strength of the connecting seat 1 and ensure the stable elastic support of the adjusting rod 16 to the fixed plate 14.

[0037] Preferably, the elastic element 17 is configured as a buffer spring, and the buffer spring is sleeved on the adjusting rod 16. The two ends of the buffer spring are respectively in contact with the adjusting plate 15 and the fixing plate 14 to provide elastic repulsion.

[0038] The end of the adjusting rod 16 away from the fixed plate 14 is threaded with an adjusting nut 19. The adjusting plate 15 is disposed between the adjusting nut 19 and the buffer spring. By rotating the adjusting rod 16 and the adjusting nut 19 relative to each other, the fixed plate 14 and the adjusting plate 15 can be adjusted, thereby adjusting the elastic force provided by the buffer spring.

[0039] Similarly, the elastic element 17 is a rubber pad with a fixing hole, and the adjusting rod 16 is disposed in the fixing hole, thereby fixing the rubber pad between the adjusting plate 15 and the fixing plate 14.

[0040] Preferably, a guide rod 18 is vertically arranged on the fixed plate 14, and a guide hole is provided on the adjusting plate 15. The guide rod 18 and the adjusting rod 16 are arranged in parallel, and the guide rod 18 is disposed in the guide hole, thereby stabilizing the linear compression movement of the buffer wheel 2 on the elastic member 17.

[0041] The lower edge of the connecting plate 13 and the upper edge of the side plate 11 are both set as smooth planes extending in a straight line, which facilitates the contact and linear sliding of the two planes and ensures the linear movement of the buffer wheel 2.

[0042] The above description is merely a preferred embodiment of the present utility model and is illustrative rather than restrictive. Those skilled in the art will understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the present utility model, all of which will fall within the protection scope of the present utility model.

Claims

1. A collision avoidance device for ductile iron pipes, characterized in that, It includes a connecting seat and a buffer wheel. The connecting seat is fixedly installed at the end of the track. The buffer wheel is cylindrical and has a rotating hole on its axis. A rotating shaft is installed in the rotating hole and the rotating shaft is fixedly installed on the connecting seat.

2. The anti-collision device for ductile iron pipes as described in claim 1, characterized in that, The connecting seat includes two side plates and a bottom plate. The bottom plate is fixed to the bottom of the track. The two side plates are symmetrically and vertically fixed to both ends of the bottom plate. The two side plates are fixed to both sides of the track, and the upper end surface of the side plates does not exceed the upper edge surface of the track.

3. The anti-collision device for ductile iron pipes as described in claim 2, characterized in that, A connecting plate is provided on the end of the side plate away from the track. The connecting plate is provided with a connecting hole. The two ends of the rotating shaft are respectively located in the connecting holes of the two side plates. The axis of the connecting hole extends beyond the upper edge of the track.

4. The anti-collision device for ductile iron pipes as described in claim 3, characterized in that, Both ends of the rotating shaft are threaded with limit nuts, and the two limit nuts are respectively located on both sides of the connecting seat.

5. The anti-collision device for ductile iron pipes as described in claim 3, characterized in that, The two connecting plates are connected by a fixing plate to form a U-shaped frame structure. An adjusting plate is fixedly connected to the ends of the two side plates away from the track. The adjusting plate and the fixing plate are arranged in parallel. An adjusting rod is vertically arranged on the fixing plate. An adjusting hole is provided on the adjusting plate. The adjusting rod is arranged in the adjusting hole. An elastic element is provided between the adjusting plate and the fixing plate.

6. The anti-collision device for ductile iron pipes as described in claim 5, characterized in that, The adjusting plate is vertically fixedly connected to both the side plate and the bottom plate.

7. The anti-collision device for ductile iron pipes as described in claim 5, characterized in that, The elastic element is configured as a buffer spring, and the buffer spring is sleeved on the adjusting rod. The two ends of the buffer spring are respectively in contact with the adjusting plate and the fixed plate to provide elastic repulsion force.

8. The anti-collision device for ductile iron pipes as described in claim 7, characterized in that, The end of the adjusting rod away from the fixed plate is threaded with an adjusting nut, and the adjusting plate is disposed between the adjusting nut and the buffer spring.

9. The anti-collision device for ductile iron pipes as described in claim 5, characterized in that, The elastic element is a rubber pad with a fixing hole, and the adjusting rod is disposed in the fixing hole.

10. The anti-collision device for ductile iron pipes as described in claim 5, characterized in that, The fixed plate is also vertically provided with a guide rod, and the adjusting plate is provided with a guide hole. The guide rod and the adjusting rod are arranged in parallel, and the guide rod is disposed in the guide hole.