Auxiliary climbing device for welding operation of large pipeline
By designing a welding operation assisted climbing device for large gas pipelines, the problems of inconvenience in welding operation and difficulty in guaranteeing quality caused by high weld positions on the upper and top of the pipeline are solved, and the effect of stable fixation and safe climbing is achieved, and the welding efficiency and quality are improved.
Patent Information
- Application Number
- CN202421084137.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-17
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-05-17
AI Technical Summary
In the counter-welding construction of large gas pipelines, the welds on the upper and top of the pipeline are high, resulting in inconvenient welding operation and difficult to ensure welding quality. The ladder cannot be fixedly overlapped on the pipeline, which is prone to risk of ladder sliding.
A large-scale pipe welding operation assisted climbing device is designed, including two flexible strip-like connectors parallel to each other, a connecting frame, a pedal, a shaft locker and a wire rope tightener. The flexible strip-like connection is attached to the surface of the pipe and fixed by a wire rope tightener, and the pedal is adjustable and fixed by a locking shaft to form a stable climbing structure.
The device can be stably fixed to the pipe surface, providing a safe and reliable climbing path, and the operator can easily access the welds on the upper and top of the pipe, improving the convenience and quality of welding operations.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model relates to a pipeline welding auxiliary device, in particular to an auxiliary climbing device for large-scale pipeline welding operations. Background Art
[0002] In the gas transmission pipeline, the diameter of large gas pipelines can reach two meters or even more than three meters. In the butt welding construction of large gas pipelines, due to the large diameter of the pipeline, the welds at the bottom of the pipeline can be welded on the ground, but for the welds at the top and top of the pipeline, the welds are located higher, higher than the height of the operator, and ladders and other tools need to be set up on site, and welders stand on the ladders to perform welding construction. However, since the ladder cannot be fixedly overlapped on the pipeline, it is difficult to ensure the stability of the ladder, and there is a risk of the ladder sliding. Multiple operators are required to assist in fixing the ladder, and when welding the top of the pipeline, the operator standing on the ladder cannot get close to the welding position and needs to reach out and lift the welding gun to the weld for welding construction, resulting in inconvenience in welding operation and the inability to ensure welding quality. Utility Model Content
[0003] The utility model aims to provide a large-scale pipeline welding operation auxiliary climbing device to solve the problem of inconvenience in existing large-scale pipeline welding construction.
[0004] The utility model is implemented as follows: an auxiliary climbing device for large-scale pipeline welding operations, including two flexible strip connectors parallel to each other, a plurality of connecting frames are evenly arranged on the two flexible strip connectors along the length direction, the connecting frames extend outward from the plane where the two flexible strip connectors are located, a pedal is arranged between the connecting frames on the two flexible elements, the pedal is connected to the connecting frames on both sides through a rotating shaft, a shaft lock is arranged on the rotating shaft, the shaft lock is used to fix the angle of the rotating shaft and the pedal, and a wire tensioner is arranged between the two connecting frames on the flexible strip connector.
[0005] As a further improvement of the auxiliary climbing device for large-scale pipeline welding operations of the utility model, the flexible strip-shaped connecting member is a chain, and two adjacent connecting frames are connected by a plurality of chain links.
[0006] As a further improvement of the auxiliary climbing device for large pipeline welding operations of the utility model, the connecting frame includes a first arm, a second arm and a third arm which are at obtuse angles to each other. The first arm and the second arm are connected to the flexible strip-shaped connecting piece, and the third arm is connected to the rotating shaft.
[0007] As a further improvement of the auxiliary climbing device for large-scale pipeline welding operations of the utility model, the shaft lock includes an eccentric cam clamping handle and a sliding seat arranged at one end of the rotating shaft, the eccentric cam clamping handle is axially connected to the end of the rotating shaft, the sliding seat is sleeved on the rotating shaft, and the sliding seat is in contact with the connecting frame, a pressure plate is arranged at the other end of the rotating shaft, a clamping plate is arranged on the connecting frame on the side of the pressure plate, a shaft sleeve is arranged at one end of the pedal, and a locking plate is arranged at the other end, the rotating shaft passes through the shaft sleeve and the locking plate, the locking plate is in contact with the clamping plate, and the rotation of the pedal is limited by the matching connection between the locking plate and the clamping plate.
[0008] The clamping plate and the pressure plate can be fixed in various structural forms, one of which is that strip-shaped anti-slip protrusions are respectively provided on the contact surfaces of the locking plate and the clamping plate.
[0009] Another structure is that a circle of teeth is provided on the edge of the locking disk, and a locking groove corresponding to the shape of the locking disk is provided on the clamping disk.
[0010] As a further improvement of the auxiliary climbing device for large-scale pipeline welding operations of the utility model, hooks are respectively provided at both ends of the wire tensioner, and a connecting hole is provided in the middle of the connecting frame, and the hooks are connected to the connecting holes.
[0011] The two flexible strip connectors of the utility model are arranged on the surface of the pipeline. Under the action of their own gravity, the middle part is attached to the surface of the pipeline to form a semicircle, and the front and rear parts are naturally drooped. The wire tensioner is arranged below the pipeline, and the two ends of the wire tensioner are connected to the two ends of the flexible strip connector attached to the surface of the pipeline to form a semicircle. The wire tensioner is tightened to fix the flexible strip connector on the surface of the pipeline. The pedal between the two flexible strip connectors can adjust the angle so that the pedal is in a horizontal state. After adjusting the angle, the angle of the pedal is fixed by the shaft lock. When the operator performs welding construction on the upper part of the pipeline, he can climb to the upper part of the pipeline along the naturally drooping soft ladder. After climbing to the upper part of the pipeline, since the pedal is fixed on the surface of the pipeline, the operator can be located on the pedal to perform welding construction on the upper part and the top of the pipeline. Since the welder is close to the welding position, it is convenient to carry out the welding operation, which is conducive to ensuring the welding construction effect.
[0012] Among them, the pedal angle is adjustable, so that the pedals stepped by the operators are all in a horizontal state, and the pedals can be quickly adjusted and fixed, which is simple and convenient to use and helps to improve construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural diagram of the utility model when it is used on a large pipeline.
[0014] Figure 2 It is a connection structure diagram of the pedal of the utility model and the connecting frames on both sides.
[0015] Figure 3 The utility model is a structure of a clamping disc.
[0016] Figure 4 It is another structure of the clamping disc of the utility model.
[0017] In the figure: 1. flexible strip connector; 2. connecting frame; 3. pedal; 4. shaft lock; 5. wire rope tightener; 6. rotating shaft; 7. pipeline; 2-1. first arm; 2-2. second arm; 2-3. third arm; 2-4. connecting hole; 3-1. bushing; 3-2. locking plate; 4-1. eccentric cam clamping handle; 4-2. sliding seat; 4-3. clamping plate; 4-4. pressure plate; 4-5. strip anti-skid protrusion; 4-6. locking groove. DETAILED DESCRIPTION
[0018] The utility model will be further described below in conjunction with the accompanying drawings.
[0019] like Figure 1 , Figure 2 As shown, the utility model is an auxiliary climbing device for welding operations on a large pipeline 7, which is composed of two flexible strip connectors 1, a connecting frame 2, a rotating shaft 6, a pedal 3, an axle lock 4 and a wire tensioner 5. The whole is a soft ladder structure, which can be overlapped on the pipeline 7, with the middle part fitting against the surface of the pipeline 7, and the front and rear end parts naturally drooping, and the part fitting against the surface of the pipeline 7 is tightened and fixed on the pipeline 7 by the wire tensioner 5.
[0020] The utility model comprises two flexible strip connectors 1 which are parallel to each other, and a plurality of connecting frames 2 are evenly arranged on the two flexible strip connectors 1 along the length direction, and the connecting frames 2 extend outward from the plane where the two flexible strip connectors 1 are located, and a pedal 3 is arranged between the connecting frames 2 on the two flexible elements, and the pedal 3 is connected to the connecting frames 2 on both sides through a rotating shaft 6, and a shaft lock 4 is arranged on the rotating shaft 6, and the shaft lock 4 is used to fix the angle of the rotating shaft 6 and the pedal 3, and a wire tensioner 5 is arranged between the two connecting frames 2 on the flexible strip connector 1.
[0021] Two flexible strip-shaped connecting members 1 and a plurality of pedals 3 in the middle form a soft ladder structure.
[0022] The flexible strip connector 1 may also be a steel wire rope, etc., which has certain flexibility and strong tensile strength. Preferably, the flexible strip connector 1 is a chain, and two adjacent connecting frames 2 are connected by a plurality of chain links, and the connecting frame 2 is also used as a chain link of the chain, so that all the chain links are connected into a whole chain.
[0023] The connecting frames 2 are evenly distributed on the flexible strip-shaped connecting member 1 , and a portion of the connecting frames 2 extends outwards for mounting the rotating shaft 6 and the pedal 3 .
[0024] Specifically, the connecting frame 2 includes a first arm 2-1, a second arm 2-2 and a third arm 2-3 which are at an obtuse angle to each other, the first arm 2-1 and the second arm 2-2 are connected to the flexible strip-shaped connecting member 1, and the third arm 2-3 is connected to the rotating shaft 6. In this embodiment, shaft holes are provided on the first arm 2-1, the second arm 2-2 and the third arm 2-3, the shaft holes of the first arm 2-1 and the second arm 2-2 are used to connect with the chain link, and the shaft hole on the third arm 2-3 is used to install the rotating shaft 6.
[0025] There is an obtuse angle between the first arm 2-1 and the second arm 2-2. When the connecting frame 2 contacts the surface of the pipe 7, only the end of the first arm 2-1 and the end of the second arm 2-2 contact the surface of the pipe 7, thereby ensuring the contact area between the chain and the surface of the pipe 7, so as to provide sufficient friction force to fix the utility model on the surface of the pipe 7 when the chain is tightened.
[0026] In order to ensure the stability of the operator's body during welding, the angle of the pedal 3 needs to be adjustable. The pedal 3 can rotate around the shaft 6. After rotating to a horizontal state, the shaft 6, the pedal 3 and the connecting frame 2 are fixed together through the shaft lock 4. At this time, the operator can stand stably on the pedal 3 to operate.
[0027] like Figure 2 As shown, the shaft lock 4 includes an eccentric cam clamping handle 4-1 and a sliding seat 4-2 arranged at one end of the rotating shaft 6. The eccentric cam clamping handle 4-1 is axially connected to the end of the rotating shaft 6, the sliding seat 4-2 is sleeved on the rotating shaft 6, and the sliding seat 4-2 is in contact with the connecting frame 2. A pressure plate 4-4 is arranged at the other end of the rotating shaft 6, and a clamping plate 4-3 is arranged on the connecting frame 2 on the side where the pressure plate 4-4 is arranged.
[0028] A shaft sleeve 3-1 is provided at one end of the pedal 3, and a locking plate 3-2 is provided at the other end. The rotating shaft 6 passes through the shaft sleeve 3-1 and the locking plate 3-2. The locking plate 3-2 is in contact with the clamping plate 4-3. The rotation of the pedal 3 is limited by the matching connection between the locking plate 3-2 and the clamping plate 4-3.
[0029] The eccentric cam of the eccentric cam clamping handle 4-1 contacts the arc surface at the end of the sliding seat 4-2, and the rotating shaft 6 is tightened or loosened by rotating the eccentric cam clamping handle 4-1. When the rotating shaft 6 is tightened, the sliding seat 4-2 presses the connecting frame 2 on the left side to the right, and the pressure plate 4-4 presses the clamping plate 4-3 on the connecting frame 2 on the right side to the left, thereby fixing the pedal 3 in the middle, so that the pedal 3 cannot rotate. When the rotating shaft 6 is loosened, the pressure plate 4-4 and the sliding seat 4-2 loosen the two connecting frames 2, and the pedal 3 can rotate at this time.
[0030] The clamping plate 4-3 and the locking plate 3-2 can be fixed in various structural forms, such as Figure 3 As shown, one of the structures is that strip-shaped anti-skid protrusions 4-5 are respectively arranged on the contact surfaces of the locking disk 3-2 and the clamping disk 4-3, and the strip-shaped anti-skid protrusions 4-5 are evenly distributed around the center of the locking disk 3-2 or the clamping disk 4-3. When the locking disk 3-2 and the clamping disk 4-3 are pressed against each other, the strip-shaped anti-skid protrusions 4-5 on the locking disk 3-2 and the strip-shaped anti-skid protrusions 4-5 on the clamping disk 4-3 are engaged with each other. When the locking disk 3-2 and the clamping disk 4-3 are separated from each other by a certain distance, the locking disk 3-2 and the clamping disk 4-3 can rotate relative to each other.
[0031] like Figure 4 As shown, another structure is that a circle of teeth is provided on the edge of the locking plate 3-2, and a locking groove 4-6 corresponding to the shape of the locking plate 3-2 is provided on the clamping plate 4-3. When the pressure plate 4-4 presses the clamping plate 4-3, the locking plate 3-2 enters the locking groove 4-6, and the locking plate 3-2 and the clamping plate 4-3 are fixed to each other. When the pressure plate 4-4 is released, the clamping plate 4-3 moves away from the locking plate 3-2 so that the locking plate 3-2 is pulled out of the locking groove 4-6, and then the pedal 3 can be rotated to rotate the locking plate 3-2.
[0032] The wire tensioner 5 is a rope tensioner or a wire tensioner available on the market. Hooks are respectively arranged at both ends of the wire tensioner 5. A connecting hole 2-4 is arranged in the middle of the connecting frame 2. The hooks are connected to the connecting hole 2-4. Figure 1 As shown, the hook of the wire tensioner 5 is connected to the connecting frame 2 near the tangent position of the chain and the surface of the pipe 7, and the wire tensioner 5 is connected to both chains. The wire tensioner and the chain are gradually tightened by the handle and ratchet mechanism on the wire tensioner 5, so that the utility model is fixed on the pipe 7. After tightening, the utility model can withstand the gravity of the welding equipment carried by a single operator.
[0033] When the utility model is in use, the whole soft ladder structure is first overlapped on the pipe 7. Under the action of its own gravity, the middle part of the utility model fits on the surface of the pipe 7 to form a semicircle, and the front and rear parts naturally droop; then the wire tensioner 5 is set below the pipe 7, and the two ends of the wire tensioner 5 are connected to the parts of the utility model overlapped on the pipe 7, and the wire tensioner 5 is tightened to fix the utility model on the surface of the pipe 7; the angle of the pedal 3 is adjusted to make the pedal 3 horizontal. After adjusting the angle, the angle of the pedal 3 is fixed by the shaft lock 4; when the operator performs welding construction on the upper half of the pipe 7, the operator climbs to the upper part of the pipe 7 along the naturally drooping part, and performs welding operations on the welds on the upper part and the top of the pipe 7.
[0034] The utility model is easy to use and can be stably fixed on the surface of the pipe 7. The fixed installation of the utility model and the angle adjustment of the pedal 3 can be completed by one person. After using the utility model, the operator can climb to the upper part of the pipe 7 and approach the welds on the upper part and the top of the pipe 7, which is convenient for welding operations and helps to ensure the welding quality.
Claims
1. A large-scale pipeline welding operation auxiliary climbing device, characterized in that: It includes two flexible strip connectors parallel to each other, and a plurality of connecting frames are evenly arranged along the length direction on the two flexible strip connectors, and the connecting frames extend outward from the plane where the two flexible strip connectors are located. A pedal is arranged between the connecting frames on the two flexible elements, and the pedal is connected to the connecting frames on both sides through a rotating shaft. A shaft lock is arranged on the rotating shaft, and the shaft lock is used to fix the angle of the rotating shaft and the pedal. A wire tensioner is arranged between the two connecting frames on the flexible strip connector.
2. The large-scale pipeline welding operation auxiliary climbing device according to claim 1 is characterized in that: The flexible strip-shaped connecting member is a chain, and two adjacent connecting frames are connected by a plurality of chain links.
3. The large-scale pipeline welding operation auxiliary climbing device according to claim 1 is characterized in that: The connecting frame comprises a first arm, a second arm and a third arm which are at obtuse angles to each other, the first arm and the second arm are connected to the flexible strip-shaped connecting member, and the third arm is connected to the rotating shaft.
4. The large-scale pipeline welding operation auxiliary climbing device according to claim 1 is characterized in that: The shaft lock includes an eccentric cam clamping handle and a sliding seat arranged at one end of the rotating shaft, the eccentric cam clamping handle is axially connected to the end of the rotating shaft, the sliding seat is sleeved on the rotating shaft, and the sliding seat is in contact with the connecting frame, a pressure plate is arranged at the other end of the rotating shaft, a clamping plate is arranged on the connecting frame on the side of the pressure plate, a shaft sleeve is arranged at one end of the pedal, and a locking plate is arranged at the other end, the rotating shaft passes through the shaft sleeve and the locking plate, the locking plate is in contact with the clamping plate, and the rotation of the pedal is limited by the matching connection between the locking plate and the clamping plate.
5. The large-scale pipeline welding operation auxiliary climbing device according to claim 4 is characterized in that: Strip-shaped anti-slip protrusions are respectively arranged on the contact surfaces of the locking disk and the clamping disk.
6. The large-scale pipeline welding operation auxiliary climbing device according to claim 4 is characterized in that: A circle of teeth is arranged on the edge of the locking disk, and a locking groove corresponding to the shape of the locking disk is arranged on the clamping disk.
7. The large-scale pipeline welding operation auxiliary climbing device according to claim 1 is characterized in that: Hooks are respectively arranged at both ends of the wire tensioner, and a connecting hole is arranged in the middle of the connecting frame, and the hook is connected to the connecting hole.