Auxiliary device for field assembling and welding of embedded water supply pipeline steel pipe
Through symmetrically arranged components such as fixtures and bolt jacks, the complexity and applicability of existing steel pipe on-site welding auxiliary devices for embedded water supply pipelines has been solved, and efficient and stable steel pipe group and welding quality has been achieved.
Patent Information
- Application Number
- CN202422394264.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-09-30
AI Technical Summary
The existing on-site welding auxiliary devices for steel pipes in embedded water supply pipelines have problems such as many repetitive steps, relying on operating level, low working efficiency, small scope of application and easy to damage steel pipes.
The clamps with symmetrical settings, including support rings and arc plates, use bolts, jacks and other components to achieve preliminary positioning and adjustment of steel pipes. Through the tightening of bolts and steel pipes and the adjustment of jacks, the quality of the group is ensured, and the adjustment accuracy and stability are improved through scales and reinforcement ribs.
The combination process is simplified, the work efficiency is improved, the dependence on the operating level is reduced, the scope of application is expanded, and the risk of damage to steel pipes is reduced.
Smart Images
Figure CN223070838U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of on-site assembly welding auxiliary devices for steel pipes, and particularly relates to an auxiliary device for on-site assembly welding of embedded water supply pipeline steel pipes. Background Art
[0002] Water supply pipelines are used to meet the water use needs of people in different regions. By connecting pipelines, a water resource transportation route is built to supply water sources to thousands of households. Water supply pipelines play an important role in the allocation of water resources. When installing water supply pipelines, it is usually necessary to first excavate pipeline trenches, and then complete the installation of embedded water supply pipelines through processes such as site leveling, pre-welding preparation, steel pipe hoisting and positioning, steel pipe welding, weld inspection, weld anti-corrosion treatment, and overall acceptance. Among them, the welding quality of steel pipe welds is particularly important, and the alignment quality of steel pipes is related to the quality of welding and even the quality of the entire water supply pipeline installation project.
[0003] When on-site assembly welding of embedded water supply pipeline steel pipes is carried out, some auxiliary devices are often used. However, the following problems still exist in the use of these auxiliary devices: First, there are many repetitive alignment steps, and tools such as hammers and straightedges need to be used repeatedly in cooperation, and the alignment quality overly depends on the operation level of operators; second, it is time-consuming and laborious, and the work efficiency is low; third, a retainer card is often directly used for welding and fixing, which is only applicable to steel pipes of one specification, has a small application range, limited economic applicability, and after the steel pipe alignment is completed, it is also necessary to cut it off from the steel pipe by carbon arc air gouging or thermal cutting, which is likely to damage the steel pipe and has the problem of inconvenient use. Therefore, it is objectively necessary to develop an auxiliary device for on-site assembly welding of embedded water supply pipeline steel pipes that is easy to use, has good applicability, and high alignment efficiency. Content of the Utility Model
[0004] The purpose of the utility model is to provide an auxiliary device for on-site assembly welding of embedded water supply pipeline steel pipes that is easy to use, has good applicability, and high alignment efficiency.
[0005] The purpose of the utility model is realized as follows. It includes two symmetrically arranged clamps. Each clamp includes a support ring and multiple arc-shaped plates circumferentially distributed on the support ring. A plurality of bolts are evenly distributed along the arc length direction of each arc-shaped plate, and the bolts are threadedly connected to the arc-shaped plates. A jack is arranged between two corresponding arc-shaped plates on the two clamps.
[0006] Furthermore, a backing plate is hinged to the threaded end of the bolt.
[0007] Furthermore, an anti-slip pad is arranged on the lower surface of the backing plate.
[0008] Furthermore, a telescopic rod is arranged between two corresponding arc-shaped plates on the two clamps.
[0009] Furthermore, a guide sleeve is movably sleeved on the bolt, and the end of the guide sleeve is fixed on the arc-shaped plate.
[0010] Furthermore, the number of arc-shaped plates is not less than 3.
[0011] Furthermore, the support ring includes two symmetrically arranged semi-rings. One end between the two semi-rings is hinged through a hinge, and the other end is connected through a connecting plate, a stud and a nut.
[0012] Furthermore, reinforcing ribs are arranged between the upper and lower sides of the arc-shaped plate and the support ring.
[0013] Furthermore, a scale is arranged on one of the arc-shaped plates. One end of the scale is fixed on the arc-shaped plate of one of the jigs, and the other end is a suspended end, located above the arc-shaped plate of the other jig.
[0014] The utility model has a simple structure and is used for assisting in on-site assembly welding of embedded water supply pipeline steel pipes. During the butt-joint process of the steel pipes, the support ring of the device is sleeved on the butt-joint position of the two steel pipes, and the two jigs are respectively located at the ends of the two steel pipes. Then, the bolts on the arc-shaped plates in the two jigs are respectively turned. The threaded ends of the bolts move towards the surface of the steel pipes until the ends of all the bolts are in contact with the surface of the corresponding steel pipes, completing the preliminary positioning of the two steel pipes. Then, according to the relative position between the two steel pipes, the corresponding bolts are tightened or loosened to eliminate the misalignment problem between the ends of the two steel pipes and adjust the roundness of the steel pipes, ensuring the butt-joint quality between the ends of the two steel pipes during the tightening and loosening of the corresponding bolts. At this time, the device is connected to the two steel pipes as a whole through bolts. The jack is activated, and the distance between the corresponding two arc-shaped plates is adjusted through the jack. Since the bolt ends tightly abut against the steel pipes and there is no relative displacement between the bolts and the steel pipes in the direction of the pipe center line, the thrust or pull applied by the jack to the arc-shaped plates will be transmitted to the steel pipes through the bolts, prompting the distance between the two steel pipes to increase or decrease, realizing the adjustment of the butt-joint gap. Through the above method, the butt-joint quality between the two steel pipes can be effectively ensured, and thus the subsequent welding quality can be ensured. During the above use process of the device, the roundness problem of the steel pipes, the misalignment problem of the butt-joint, and the butt-joint gap can all be better adjusted and controlled. During the process of assisting the butt-joint of the steel pipes, additional tools such as hammers do not need to be used, the number of repeated steps is less, the operation process is relatively simple, and the butt-joint quality does not overly depend on the operation level of the operators; secondly, compared with the traditional auxiliary device that needs to be welded on the steel pipes, during the butt-joint process of this device, the connection between the device and the steel pipes, the adjustment of the roundness of the steel pipes, and the adjustment of the misalignment amount all rely on bolts, and the adjustment is relatively convenient. At the same time, when disassembling, only all the bolts need to be loosened, and it is not easy to cause damage to the steel pipes, and the operation is relatively convenient, saving time and effort, improving the working efficiency of the butt-joint of the steel pipes, and shortening the construction period of the on-site butt-joint of the steel pipes; in addition, this device is applicable to the assembly welding of steel pipes with a diameter within a certain range. Theoretically speaking, as long as the outer diameter of the steel pipe is smaller than the diameter of the circle where the multiple arc-shaped plates are located, it can be used. Compared with the traditional device that is only applicable to steel pipes of one specification, the applicable range of this device is larger and more economical and applicable. To sum up, the utility model has the advantages of convenient use, good applicability, and high butt-joint efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is the overall structural schematic diagram of the utility model;
[0016] Figure 2 is Figure 1 the sectional structural schematic diagram of A-A in
[0017] Figure 3 the structural schematic diagram of the scale 14 in the utility model;
[0018] In the figure: 1 - support ring, 2 - arc plate, 3 - bolt, 4 - jack, 5 - backing plate, 6 - anti-slip pad, 7 - telescopic rod, 8 - guide sleeve, 9 - half ring, 10 - hinge piece, 11 - connecting plate, 12 - stud, 13 - reinforcing rib, 14 - scale, 15 - steel pipe. Specific implementation manner
[0019] The present utility model will be further described below in conjunction with the accompanying drawings, but the present utility model is not limited in any way. Any change or improvement made based on the present utility model falls within the protection scope of the present utility model.
[0020] As Figures 1 to 3 shown, the present utility model includes two symmetrically arranged jigs. Each jig includes a support ring 1 and a plurality of arc plates 2 evenly distributed circumferentially on the support ring 1. A plurality of bolts 3 are evenly distributed along the arc length direction on each arc plate 2. The bolts 3 are threadedly connected to the arc plates 2. A jack 4 is arranged between two corresponding arc plates 2 of the two jigs. The jack 4 is an existing device and can be purchased and installed in the market according to needs.
[0021] The structure of the utility model is simple and it is used for assisting the on-site assembly welding of the embedded water supply pipeline steel pipe 15. During the alignment process of the two steel pipes 15, the support ring 1 of the device is sleeved on the alignment position of the two steel pipes 15, and the two jigs are respectively located at the ends of the two steel pipes 15. Then, the bolts 3 on the arc-shaped plates 2 in the two jigs are respectively screwed. The threaded ends of the bolts 3 move towards the surface of the steel pipe 15 until the ends of all the bolts 3 are in contact with the surface of the corresponding steel pipe 15, completing the preliminary positioning of the two steel pipes 15. Then, according to the relative position between the two steel pipes 15, the corresponding bolts 3 are tightened or loosened to eliminate the misalignment problem between the ends of the two steel pipes 15 and adjust the roundness problem of the steel pipe 15, ensuring the assembly quality between the ends of the two steel pipes 15 during the tightening and loosening of the corresponding bolts 3. At this time, the device is connected to the two steel pipes 15 as a whole through the bolts 3. The jack 4 is activated, and the distance between the corresponding two arc-shaped plates 2 is adjusted through the jack 4. Since the ends of the bolts 3 are tightly pressed against the steel pipe 15 and there is no relative displacement between the bolts 3 and the steel pipe 15 in the direction of the pipe center line, the thrust or pull applied by the jack 4 to the arc-shaped plate 2 will be transmitted to the steel pipe 15 through the bolts 3, prompting the distance between the two steel pipes 15 to increase or decrease, realizing the adjustment of the assembly gap. Through the above method, the assembly quality between the two steel pipes 15 can be effectively ensured, and thus the subsequent welding quality can be ensured. During the above use process of the device, the roundness problem, misalignment problem during assembly, and assembly gap of the steel pipe 15 can all be better adjusted and controlled. During the process of assisting the assembly of the steel pipe 15, additional tools such as hammers do not need to be used, the number of repeated steps is less, the operation process is relatively simple, and the assembly quality does not overly depend on the operation level of the operators. Secondly, compared with the traditional auxiliary device that needs to be welded on the steel pipe 15, during the assembly process of this device, the connection between the device and the steel pipe 15, the adjustment of the roundness of the steel pipe 15, and the adjustment of the misalignment amount all rely on the bolts 3, which is more convenient for adjustment. At the same time, when disassembling, only all the bolts 3 need to be loosened, and it is not easy to cause damage to the steel pipe 15. The operation is relatively convenient, time-saving and labor-saving, which not only improves the working efficiency of the assembly of the steel pipe 15 but also shortens the construction period of the on-site assembly of the steel pipe 15. In addition, this device is applicable to the assembly welding of steel pipes 15 within a certain diameter range. Theoretically speaking, as long as the outer diameter of the steel pipe 15 is smaller than the diameter of the circle where the multiple arc-shaped plates 2 are located, it can be used. Compared with the traditional device that is only applicable to steel pipes 15 of one specification, the applicable range of this device is larger and it is more economical and applicable.
[0022] The threaded end of the bolt 3 is hinged with a pad 5. During actual use of the device, it is found that the end of the bolt 3 is against the surface of the steel pipe 15. Since the end area of the bolt 3 is small and the contact area with the surface of the steel pipe 15 is small, it is easy to cause stress concentration, that is, it is easy to damage the surface of the steel pipe 15 and the thread of the end of the bolt 3. After the pad 5 is provided, the contact area with the outer wall of the steel pipe 15 is increased, and the damage to the surface of the steel pipe 15 is reduced. Secondly, the bolt 3 and the pad 5 are hinged, and the pad 5 can be rotated to better fit the surface of the steel pipe 15.
[0023] An anti-skid pad 6 is provided on the lower surface of the pad 5. When adjusting the gap between the assembly, the friction between the pad 5 and the steel pipe 15 generates resistance to prevent the pad 5 from sliding on the steel pipe 15. The anti-skid pad 6 is a prior art. There is a greater friction between the anti-skid pad 6 and the surface of the steel pipe 15, which can effectively prevent the pad 5 from sliding on the steel pipe 15 and improve the stability of the gap adjustment.
[0024] A telescopic rod 7 is provided between the two corresponding arc-shaped plates 2 on the two clamps. The telescopic rod 7 is connected between the two corresponding arc-shaped plates 2 and plays a guiding role when adjusting the assembly gap to prevent twisting between the two clamps.
[0025] A guide sleeve 8 is movable on the bolt 3, and the end of the guide sleeve 8 is fixed on the arc plate 2. The bolt 3 and the arc plate 2 are connected by threads. During the use of the device, the bolt 3 will rest on the steel pipe 15 and will be subjected to a reaction force. This reaction force may cause the bolt 3 to become skewed or even damage the thread. After the guide sleeve 8 is provided, the bolt 3 can be positioned and guided to avoid damage to the thread and skewness of the bolt 3 as much as possible.
[0026] The number of arc plates 2 is not less than 3. In this device, the main component used for fixing the device and adjusting the pair is the bolt 3, and the bolt 3 is arranged on the arc plate 2. The arrangement of the arc plate 2 determines the arrangement of the bolt 3. It is known from practice that, generally speaking, the number of arc plates 2 is 3 to 4, and in order to ensure the stability of the device during use and to ensure the quality of the pair, it should not be less than 3. The specific number is determined according to the parameters such as the diameter of the steel pipe 15 and the arc length of the arc plate 2.
[0027] The support ring 1 includes two symmetrically arranged semi-rings 9. One end between the two semi-rings 9 is hinged through a hinge member 10, and the other end is connected through a connecting plate 11, a stud 12 and a nut. During the use of the utility model, it needs to be sleeved from the end of the steel pipe 15. However, due to the hoisting or support of the steel pipe 15 on site, certain interference often occurs, which is not convenient for the sleeving operation of this device. To avoid this problem, the support ring 1 is set into two parts. The two semi-rings 9 can rotate around the hinge member 10, thereby realizing the opening and closing of the support ring 1. When opened, the two semi-rings 9 are located outside the steel pipe 15. When closed, the two semi-rings 9 form a complete support ring 1. Tighten the stud 12, and at this time the support ring 1 is sleeved on the steel pipe 15. When disassembling, loosen the bolt 3 and the stud 12, and open the support ring 1 to take it out.
[0028] Reinforcing ribs 13 are provided between the upper and lower two side surfaces of the arc-shaped plate 2 and the support ring 1. When this device is in use, the bolt 3 is used to abut against the steel pipe 15 for fixing and adjusting the assembly of the device. In this process, the arc-shaped plate 2 will receive the reaction force acting on it by the bolt 3. During long-term use, this reaction force will cause the arc-shaped plate 2 to deform or even be damaged. After setting the reinforcing ribs 13, part of the reaction force can be transmitted to the support ring 1, preventing the deformation and damage of the arc-shaped plate 2. At the same time, the reinforcing ribs 13 connect the arc-shaped plate 2 and the support ring 1 into a whole, improving the stiffness and strength of the entire device, and thus improving the service life of the device.
[0029] A scale 14 is provided on one of the arc-shaped plates. One end of the scale 14 is fixed on the arc-shaped plate 2 of one of the jigs, and the other end is a suspended end, located above the arc-shaped plate 2 of the other jig. One end of the scale 14 is fixed and the other end is arranged in a suspended manner, and the scale 14 spans the gap between the corresponding two arc-shaped plates 2 in the length direction. It has two functions in this device: one is to utilize the straightness of the scale 14. When the scale 14 is flush with the surfaces of the two steel pipes 15, the lower surface of the suspended end of the scale 14 fits the surface of the steel pipe 15, indicating that the two steel pipes 15 have no offset. If they do not fit, the offset amount can be indirectly measured through the gap between the scale 14 and the surface of the steel pipe 15; the other is to adjust the distance between the two steel pipes 15, that is, when adjusting the assembly gap. First, read the distance between the two arc-shaped plates 15 on the scale 15 at this time, and then adjust the distance between the two steel pipes 15 through the jack 4. By increasing or decreasing the distance between the two arc-shaped plates 15 on the scale 15, the precise adjustment of the assembly gap is realized, improving the assembly quality.
Claims
1. An auxiliary device for on-site assembly welding of steel pipes for embedded water supply pipelines, comprising two symmetrically arranged jigs, characterized in that : The fixture includes a support ring (1) and a plurality of arc-shaped plates (2) evenly distributed circumferentially on the support ring (1). A plurality of bolts (3) are evenly distributed along the arc length direction on each arc-shaped plate (2). The bolts (3) are threadedly connected to the arc-shaped plates (2). A jack (4) is arranged between two corresponding arc-shaped plates (2) of the two fixtures.
2. The auxiliary device for on-site assembly welding of the embedded water supply pipeline steel pipe according to claim 1, characterized in that : A backing plate (5) is hinged to the threaded end of the bolt (3).
3. An auxiliary device for on-site assembly welding of steel pipes for embedded water supply pipelines, as described in claim 2, characterized in that : An anti-slip pad (6) is arranged on the lower surface of the backing plate (5).
4. The auxiliary device for on-site assembly welding of embedded water supply pipeline steel pipes according to claim 1, characterized in that : A telescopic rod (7) is arranged between two corresponding arc-shaped plates (2) of the two fixtures.
5. The auxiliary device for on-site assembly welding of steel pipes of embedded water supply pipelines according to claim 1, characterized in that : A guide sleeve (8) is movably sleeved on the bolt (3), and the end of the guide sleeve (8) is fixed on the arc-shaped plate (2).
6. The auxiliary device for on-site assembly welding of steel pipes for embedded water supply pipelines according to claim 1, characterized in that : The number of the arc-shaped plates (2) is not less than 3.
7. An auxiliary device for on-site assembly welding of steel pipes for embedded water supply pipelines, as described in claim 1, characterized in that : The support ring (1) includes two symmetrically arranged semi-rings (9). One end between the two semi-rings (9) is hinged through a hinge (10), and the other end is connected through a connecting plate (11), a stud (12) and a nut.
8. An auxiliary device for on-site assembly welding of embedded water supply pipeline steel pipes according to claim 1, characterized in that : Reinforcing ribs (13) are arranged between the upper and lower sides of the arc-shaped plate (2) and the support ring (1).
9. The auxiliary device for on-site assembly welding of embedded water supply pipeline steel pipes according to claim 1, characterized in that : A scale (14) is arranged on one of the arc-shaped plates. One end of the scale (14) is fixed on the arc-shaped plate (2) of one of the fixtures, and the other end is a suspended end located above the arc-shaped plate (2) of the other fixture.