Trolley for hot melting connection of pipelines
By designing a trolley with staggered moving seats and telescopic rods, the problem of difficult position adjustment in pipeline hot-melt welding was solved, achieving efficient and simple pipeline hot-melt connection and improving construction quality.
Patent Information
- Application Number
- CN202422631265.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-10-30
AI Technical Summary
In the existing process of hot-melt welding of pipelines, the fixed pads on both sides are not easy to move, which makes it difficult to adjust the position of the pipeline, resulting in low efficiency, cumbersome operation and high construction difficulty.
A trolley with a moving mechanism was designed. The base is equipped with staggered moving seats and telescopic rods, and a first roller and a second roller. Multi-directional adjustment of the pipeline is achieved through the cooperation of sliders and positioning holes, and stability is ensured by using casters and brakes.
It enables flexible adjustment of the pipeline in all directions, reducing the difficulty of hot-melt joint connection and improving operational efficiency and quality.
Smart Images
Figure CN223507705U_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of construction machinery technology, specifically to a trolley used for hot-melt connection of pipes. Background Technology
[0002] Sewage pipes are typically made of flexible polymer chemical building materials. The current construction method usually involves assembling them on the ground by hot-melt and then hoisting them into a designated trench. When hot-melting the sewage pipes, both sides need to be raised and the elevation of both sides needs to be consistent. On this basis, it is necessary to ensure that the deviation of the pipe joint is within the allowable range to prevent eccentric connection and other problems that may affect the quality of the pipe joint.
[0003] In existing pipeline heat fusion welding processes, shims are commonly used to elevate both sides. However, these shims are relatively fixed, making them difficult to move and adjust the pipeline position according to actual conditions. This results in low efficiency, cumbersome operation, and significant construction difficulties in pipeline heat fusion welding. Utility Model Content
[0004] This invention discloses a trolley for pipe hot-melt connection, aiming to solve the following problems in the prior art: In the existing pipe hot-melt connection process, pads are generally used to raise the two sides, but the pads on both sides are relatively fixed, which is not easy to move, and it is even more inconvenient to adjust the position of the pipe according to the actual situation, resulting in low efficiency of pipe hot-melt connection, cumbersome operation and great construction difficulty.
[0005] To achieve the above objectives, the technical solution of this invention is as follows:
[0006] A trolley for pipe hot-melt connection includes a moving mechanism. The top of the moving mechanism has two or more bases along the front-to-back direction. The left and right ends of each base have staggered moving seats. Each moving seat is slidably connected to a sliding hole pre-drilled on the side of the base via an insert rod. The inner wall of the sliding hole has a threaded hole penetrating the outer surface of the base. The threaded hole is fitted with a first positioning bolt for locking the insert rod and the sliding hole relative to each other. The top of each moving seat has a longitudinally arranged telescopic rod. The tops of the two telescopic rods are respectively connected to a first roller and a second roller. The front and rear sides of the upper surface of the base have transversely arranged linear grooves. A slider is slidably connected within each linear groove. The two ends of the central shafts of the first and second rollers are hinged to the corresponding sliders and the tops of the telescopic rods, respectively. Multiple positioning holes are evenly distributed on the linear grooves. Each slider has a through hole that mates with the positioning holes. The slider is detachably fixed to the linear groove via a connecting bolt passing through the through hole and screwed to the positioning hole. The first and second rollers are arranged crosswise and staggered along the front-to-back direction. The central shaft is a telescopic structure.
[0007] Preferably, the moving mechanism includes a base plate, the base is arranged on the upper surface of the base plate, and the four corners of the lower surface of the base plate are provided with universal wheels with brakes.
[0008] Preferably, the lower end of the movable seat is slidably connected to the upper surface of the base plate.
[0009] Preferably, a stiffening rib is fixedly connected between the upper end of the movable seat and the lower part of the outer wall of the telescopic rod.
[0010] Preferably, the telescopic rod includes a sleeve and a support rod. The bottom end of the sleeve is fixedly connected to the top end of the movable seat. The inner surface of the sleeve is provided with an internal thread, and the outer surface of the support rod is provided with an external thread. The lower part of the support rod is screwed into the sleeve. The top end of the support rod is rotatably connected to a first hinge seat. The upper and lower ends of the first hinge seat are respectively provided with limiting rings. The two limiting rings are respectively fixedly sleeved on the outer surface of the support rod. The upper ends of the central shafts of the first roller and the second roller are respectively hinged to the corresponding first hinge seats.
[0011] Preferably, the slider has a cubic structure, and a second hinge seat is provided at the top of the slider. The lower ends of the central shafts of the first roller and the second roller are respectively hinged to the second hinge seat.
[0012] Preferably, the telescopic structure of the central shaft refers to: the central shaft of the first roller and the second roller is a hollow shaft with an open bottom, a connecting rod is slidably sleeved inside the hollow shaft, and the lower end of the central shaft is hinged to the second hinge seat through the connecting rod.
[0013] Preferably, the top of the side wall of the support rod is also provided with a handle.
[0014] Preferably, the first hinge seat includes a collar rotatably connected to the support rod and a first hinge seat body fixedly connected to the outer wall of the collar. The collar is provided with a threaded hole, and the collar and the support rod are fixedly connected by a second positioning bolt passing through the threaded hole.
[0015] The advantages of this new type of trolley for pipe heat fusion connection are as follows:
[0016] This new type of pipe can be adjusted in the up, down, left, right, front, and back directions, which can greatly reduce the difficulty of interface connection during pipe hot melting. It is simple to operate, highly efficient, and helps to ensure the quality of hot melting. Attached Figure Description
[0017] To more clearly illustrate the technical solution of this invention, the accompanying drawings used in the embodiments are briefly described below, which constitute a part of the specification and are used together with the embodiments of this invention to explain this invention, but do not constitute a limitation on this invention.
[0018] Figure 1This is a top view schematic diagram of the structure of this novel invention.
[0019] Figure 2 This is a front view schematic diagram of the structure of this novel invention.
[0020] Figure 3 This is a side view schematic diagram of the novel structure.
[0021] 1. Base plate; 2. Base; 3. Movable seat; 4. Telescopic rod; 41. Sleeve; 42. Support rod; 43. Handle; 44. Limiting ring; 5. Collar; 6. First hinge seat body; 7. First roller body; 8. Slider; 9. Linear chute; 10. Second roller body; 11. Pipe; 12. Stiffening rib; 13. Insert rod; 14. Caster wheel; 15. Connecting rod head; 16. Connecting rod; 17. Positioning hole; 18. Through hole. Detailed Implementation
[0022] The technical solutions of this invention will now be clearly and completely described with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.
[0023] The following embodiments can be understood as explaining a partial structure of the present invention individually, or as explaining a larger structure of the present invention through a combination of multiple embodiments.
[0024] A trolley used for pipe heat fusion connection, such as Figure 1-3 As shown, the device includes a moving mechanism. Two or more bases 2 are provided at the top of the moving mechanism along the front-to-back direction. Moving seats 3 are staggered at the left and right ends of each base 2. The moving seats 3 are slidably connected to the side of the base 2 via a rod 13 and a pre-drilled sliding hole (not shown in the figure) along the left-to-right direction. The inner wall of the sliding hole has a threaded hole (not shown in the figure) that penetrates the outer surface of the base. The threaded hole is equipped with a first positioning bolt (e.g., for locking the rod and the sliding hole relative to each other). Figure 2As shown in the figure (not marked; in actual application, the positions of the positioning bolts and sliding holes can be set as needed), the top of the movable seat 3 is provided with a telescopic rod 4 arranged longitudinally. The tops of the two telescopic rods 4 are respectively connected to the first roller body 7 and the second roller body 10. The front and rear sides of the upper surface of the base 2 are respectively provided with straight sliding grooves 9 along the transverse direction. A slider 8 is slidably connected in the straight sliding groove 9. The two ends of the central axis of the first roller body 7 and the second roller body 10 are respectively hinged to the tops of the corresponding slider 8 and the telescopic rod 4. Multiple positioning holes 17 are evenly distributed on the straight sliding groove 9. The slider 8 is provided with a through hole 18 that mates with the positioning hole 17. The slider 8 is detachably fixed to the straight sliding groove 9 by a connecting bolt that passes through the through hole 18 and is screwed to the positioning hole 17. The first roller body 7 and the second roller body 10 are arranged crosswise and staggered in the front-rear direction. The central axis is a telescopic structure.
[0025] Furthermore, such as Figure 1-3 As shown, the moving mechanism includes a base plate 1, the base 2 is arranged on the upper surface of the base plate 1, and the four corners of the lower surface of the base plate 1 are provided with universal wheels 14 with brakes.
[0026] Furthermore, such as Figure 1 , 2 As shown, the lower end of the movable seat 3 is slidably connected to the upper surface of the base plate 1.
[0027] Furthermore, such as Figure 1-3 As shown, a stiffening rib plate 12 is also fixedly connected between the upper end of the movable seat 3 and the lower part of the outer wall of the telescopic rod 4 to enhance the stability of the telescopic rod structure.
[0028] Furthermore, such as Figure 2 As shown, the telescopic rod 4 includes a sleeve 41 and a support rod 42. The bottom end of the sleeve 41 is fixedly connected to the top end of the movable seat 3. The inner surface of the sleeve 41 is provided with an internal thread, and the outer surface of the support rod 42 is provided with an external thread. The lower part of the support rod 42 is screwed into the sleeve 41. The top end of the support rod 42 is rotatably connected to a first hinge seat. The upper and lower ends of the first hinge seat are respectively provided with limiting rings 44. The two limiting rings 44 are respectively fixedly sleeved on the outer surface of the support rod 42. The upper ends of the central shafts of the first roller body 7 and the second roller body 10 are respectively hinged to the corresponding first hinge seats.
[0029] Furthermore, such as Figure 1 , 2 As shown, the slider 8 has a cubic structure, and a second hinge seat is provided at the top of the slider 8. The lower ends of the central axes of the first roller 7 and the second roller 10 are respectively hinged to the second hinge seat.
[0030] Furthermore, such as Figure 1 , 2As shown, the telescopic structure of the central shaft refers to the following: the central shaft of the first roller body 7 and the second roller body 10 is a hollow shaft with an open bottom, and a connecting rod 16 is slidably sleeved inside the hollow shaft. The lower end of the central shaft is hinged to the second hinge seat through the connecting rod 16.
[0031] Furthermore, such as Figure 1 , 2 As shown, a handle 43 is also provided on the top of the side wall of the support rod 42.
[0032] Furthermore, such as Figure 1 , 2 As shown, the first hinge seat includes a collar 5 rotatably connected to the support rod 42 and a first hinge seat body 6 fixedly connected to the outer wall of the collar 5. The collar is provided with a threaded hole (not shown in the figure), and the collar 5 and the support rod 42 are fixedly connected by a second positioning bolt passing through the threaded hole.
[0033] The working principle of this new type:
[0034] 1. This new type of roller is designed with the first roller and the second roller arranged in a cross configuration and staggered front to back. This configuration allows the first roller and the second roller to have a longer length within a limited space. When the width needs to be adjusted, the moving seat is pulled outward by a certain distance and then the position of the moving seat is fixed by the first positioning bolt. At this time, the first roller and the second roller still maintain a sufficiently small gap to ensure the support effect on the pipe. It is also compatible with pipes of different outer diameters.
[0035] 2. During hot-melt welding, two pipes are positioned on top of this new device, with their interfaces facing each other. The pipes are mounted between the tops of the first and second rollers, supported by multiple sets of first and second rollers. Pulling the pipes back and forth adjusts their position. Raising or lowering the telescopic rods to a set height decreases or increases the angle between the first and second rollers, thus adjusting the pipe's vertical height. Opening the casters and pulling the trolley left or right adjusts the pipe's horizontal position. In summary, this new device allows for vertical, horizontal, and lateral adjustment of the hot-melt pipe, significantly reducing the difficulty of interface welding during hot-melt welding. It is simple to operate, highly efficient, and helps ensure the quality of the hot-melt process.
[0036] 3. Since the first and second rollers of this new type have sufficient adjustment length, after unlocking the connecting screw, the spatial state between the first and second rollers can be changed by synchronously raising or lowering the telescopic rod. Thus, a certain size adjustment function can be achieved without adjusting the moving seat, thereby adapting to some pipes with different outer diameters. If it still cannot be adapted, the position of the moving seat can be adjusted.
Claims
1. A trolley for pipe heat fusion connection, characterized in that: The device includes a moving mechanism. Two or more bases are located at the top of the moving mechanism along the front-to-back direction. Moving seats are staggered at the left and right ends of each base. Each moving seat is slidably connected to a sliding hole pre-drilled on the side of the base via a rod. The inner wall of the sliding hole has a threaded hole penetrating the outer surface of the base. The threaded hole is fitted with a first positioning bolt for locking the rod and the sliding hole relative to each other. A telescopic rod is located at the top of each moving seat along the longitudinal direction. Two telescopic rods are respectively connected to the tops of a first roller and a second roller. Straight sliding grooves are provided laterally on the front and back sides of the upper surface of the base. A slider is slidably connected within each straight sliding groove. The two ends of the central shaft of the first and second rollers are hinged to the corresponding sliders and the tops of the telescopic rods, respectively. Multiple positioning holes are evenly distributed on the straight sliding grooves. The sliders have through holes that mate with the positioning holes. The sliders are detachably fixed to the straight sliding grooves via connecting bolts that pass through the through holes and are screwed to the positioning holes. The first and second rollers are arranged crosswise and staggered along the front-to-back direction. The central shaft is a telescopic structure.
2. The trolley for pipe heat fusion connection as described in claim 1, characterized in that: The moving mechanism includes a base plate, the base is arranged on the upper surface of the base plate, and the four corners of the lower surface of the base plate are provided with universal wheels with brakes.
3. A trolley for pipe heat fusion connection as described in claim 2, characterized in that: The lower end of the movable seat is slidably connected to the upper surface of the base plate.
4. A trolley for pipe heat fusion connection as described in claim 3, characterized in that: A stiffening rib is also fixedly connected between the upper end of the movable seat and the lower part of the outer wall of the telescopic rod.
5. A trolley for pipe heat fusion connection as described in claim 4, characterized in that: The telescopic rod includes a sleeve and a support rod. The bottom end of the sleeve is fixedly connected to the top end of the movable seat. The inner surface of the sleeve is provided with an internal thread, and the outer surface of the support rod is provided with an external thread. The lower part of the support rod is screwed into the sleeve. The top end of the support rod is rotatably connected to a first hinge seat. The upper and lower ends of the first hinge seat are respectively provided with limiting rings. The two limiting rings are respectively fixedly sleeved on the outer surface of the support rod. The upper ends of the central shafts of the first roller and the second roller are respectively hinged to the corresponding first hinge seats.
6. A trolley for pipe heat fusion connection as described in claim 5, characterized in that: The slider has a cubic structure, and a second hinge seat is provided at the top of the slider. The lower ends of the central shafts of the first roller and the second roller are respectively hinged to the second hinge seat. The telescopic structure of the central shaft refers to the fact that the central shafts of the first roller and the second roller are hollow shafts with open lower ends, and a connecting rod is slidably sleeved inside the hollow shaft. The lower end of the central shaft is hinged to the second hinge seat through the connecting rod.
7. A trolley for pipe heat fusion connection as described in claim 6, characterized in that: The support rod is also provided with a handle at the top of its side wall.
8. A trolley for pipe heat fusion connection as described in claim 7, characterized in that: The first hinge seat includes a collar rotatably connected to the support rod and a first hinge seat body fixedly connected to the outer wall of the collar. The collar is provided with a threaded hole, and the collar and the support rod are fixedly connected by a second positioning bolt passing through the threaded hole.