Water conservancy and hydropower construction pipeline fastening treatment device
By using a half-type fastening ring and a two-way screw-driven fastening mechanism, the problems of cumbersome pipe connection and welding misalignment in traditional water conservancy and hydropower construction are solved, enabling rapid disassembly and assembly and precise positioning, thereby improving construction efficiency and welding quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI XINGTUO CONSTR ENG CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-07-21
AI Technical Summary
In traditional water conservancy and hydropower construction, the operation of a single fastening ring during pipeline connection is cumbersome, cannot be quickly disassembled and assembled, and manual fixing makes it difficult to ensure concentricity, resulting in welding misalignment, affecting welding quality and increasing safety risks.
It adopts a split fastening ring and detachable threaded rod design, combined with a two-way screw-driven fastening mechanism. The pipe spacing can be adjusted by rotating the handle, and with the help of pulleys and braking mechanism, it can achieve quick disassembly and precise positioning.
It improved construction efficiency, ensured welding quality, reduced labor intensity and safety risks, and enhanced the stability and safety of welding.
Smart Images

Figure CN224526390U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water conservancy and hydropower construction technology, and in particular to a pipe fastening device for water conservancy and hydropower construction. Background Technology
[0002] In the construction of water conservancy and hydropower projects, the installation quality of the pipeline system directly affects the safety and stability of the entire project. Pipeline connections are usually made by welding, and the positioning and tightening of the pipeline before welding are particularly critical. Traditional construction methods often use a single fastening ring or manual fixing. The operation of a single fastening ring is cumbersome and cannot quickly disassemble and assemble the pipeline. Manual fixing makes it difficult to ensure the concentricity of the pipeline, which can easily lead to welding misalignment and affect the welding quality. In addition, welding is required at both pipeline connection points, and operators need to frequently move around and change positions, which will cause inconvenience to the operators, affect efficiency and increase safety risks.
[0003] To address the above problems, a pipe fastening device for water conservancy and hydropower construction has been developed. Utility Model Content
[0004] To overcome the shortcomings of traditional construction methods that often rely on a single fastening ring or manual fixing, where a single fastening ring is cumbersome to operate and cannot quickly disassemble and assemble pipes, while manual fixing makes it difficult to ensure pipe concentricity, easily leading to welding misalignment and affecting welding quality, and where welding is required at the connection of two pipes, requiring operators to frequently move around and change positions, causing inconvenience to operators, affecting efficiency and increasing safety risks, this utility model provides a pipe fastening device for water conservancy and hydropower construction.
[0005] The technical implementation scheme of this utility model is as follows: A pipe fastening device for water conservancy and hydropower construction includes a base plate. Four rollers are rotatably connected to the lower part of the base plate. Fixed plates are connected to the upper sides of both the left and right sides of the base plate. Three pulleys are rotatably connected to the inner sides of each fixed plate. A first assembly ring is slidably connected between the pulleys. A second assembly ring is rotatably connected to the upper part of the first assembly ring. The second assembly ring and the pulleys are slidably connected. Both the first and second assembly rings have several locking holes and four limiting grooves. Two half-type fastening rings are placed between the left and right parts of the first assembly ring and the second assembly ring. The upper and lower parts of the two adjacent half-type fastening rings are fixed by threaded rods. A fastening mechanism is provided between the lower parts of the two half-type fastening rings on the front side. The fastening mechanism includes guide posts. Two guide posts are connected to each half-type fastening ring. The guide posts are slidably connected to the adjacent limiting grooves. A double-acting screw is threadedly connected between the two guide posts on the lower front side. The double-acting screw is rotatably connected to the second assembly ring.
[0006] In a preferred embodiment of the present invention, a braking mechanism is further included. The braking mechanism includes a fixing block, which is connected to the fixing plate on the left side. A foot brake bracket is slidably connected to the fixing block. A spring is connected between the foot brake bracket and the fixing block. The upper part of the foot brake bracket can engage with the adjacent locking hole.
[0007] In a preferred embodiment of this utility model, the base plate has a hollow structure.
[0008] In a preferred embodiment of this utility model, all threaded rods are detachable connection structures.
[0009] In a preferred embodiment of this utility model, the bidirectional lead screw is provided with a handle.
[0010] In a preferred embodiment of this utility model, the foot brake bracket has an L-shaped structure.
[0011] By adopting the above technical solution, compared with the prior art, this utility model has the following advantages: 1. This utility model, through its half-type fastening ring and detachable threaded rod design, enables quick assembly and disassembly, facilitating the insertion or removal of pipes and significantly improving construction efficiency. At the same time, through the bidirectional screw-driven fastening mechanism, operators can precisely adjust the pipe spacing simply by rotating the handle, ensuring that the two pipe sections fit tightly during welding, avoiding misalignment or loosening, and improving welding quality.
[0012] 2. This utility model is equipped with pulleys and a braking mechanism. If it is necessary to adjust the angle or position of the pipe during the welding process, simply step on the foot brake to make the first assembly ring and the second assembly ring slide along the fixed plate. After releasing, they will automatically lock. There is no need to repeatedly move the equipment or adjust the welding posture, which reduces labor intensity and improves work safety. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0014] Figure 2 This is a partial cross-sectional three-dimensional structural diagram of the present invention.
[0015] Figure 3 This is a partial cross-sectional three-dimensional structural diagram of the fastening mechanism of this utility model.
[0016] Figure 4 This is a partial cross-sectional three-dimensional structural diagram of the braking mechanism of this utility model.
[0017] The components in the attached diagram are labeled as follows: 1. Roller, 2. Base plate, 3. Fixing plate, 4. Pulley, 5. Half-type fastening ring, 6. Threaded rod, 7. First assembly ring, 8. Second assembly ring, 9. Fastening mechanism, 91. Guide column, 92. Double-acting screw, 10. Braking mechanism, 101. Fixing block, 102. Foot brake bracket, 103. Spring. Detailed Implementation
[0018] First, it should be noted that in different described embodiments, the same components are given the same reference numerals or the same component names. The disclosure contained throughout this specification can be applied semantically to the same components having the same reference numerals or the same component names. The location descriptions selected in the specification, such as upper, lower, lateral, etc., also refer to the directly described and illustrated figures and are semantically applied to the new location when the location changes. Example 1
[0019] A fastening device for pipelines used in water conservancy and hydropower construction, such as Figures 1-3 As shown, it includes a base plate 2, which has a hollow structure. Four rollers 1 are rotatably connected to the lower part of the base plate 2. Fixed plates 3 are connected to the upper sides of both the left and right sides of the base plate 2. Three pulleys 4 are rotatably connected to the inner side of each fixed plate 3. A first assembly ring 7 is slidably connected between the pulleys 4. A second assembly ring 8 is rotatably connected to the upper part of the first assembly ring 7. The second assembly ring 8 and the pulleys 4 are slidably connected. Several locking holes are opened on the first assembly ring 7 and the second assembly ring 8. Four limiting grooves are opened on the first assembly ring 7 and the second assembly ring 8. Two half-type fastening rings 5 are placed between the left and right sides of the first assembly ring 7 and the second assembly ring 8. The upper and lower parts of the two adjacent half-type fastening rings 5 are fixed by threaded rods 6. The threaded rods 6 are all detachable connection structures. A fastening mechanism 9 is provided between the lower parts of the two half-type fastening rings 5 on the front side. The fastening mechanism 9 includes guide posts 91. Two guide posts 91 are connected to each half-type fastening ring 5. The guide posts 91 are slidably connected to the adjacent limiting grooves. A double-acting screw 92 is threadedly connected between the two guide posts 91 on the lower front side. The double-acting screw 92 is rotatably connected to the second assembly ring 8. A handle is provided on the double-acting screw 92.
[0020] It should be noted that in water conservancy and hydropower construction, pipeline fastening is a crucial step in ensuring the safe operation of the system. Proper fastening prevents leaks, vibrations, and stress problems caused by thermal expansion and contraction. Before laying the pipeline, it needs to be welded according to actual construction requirements to accommodate different lengths of laying. First, the device is pushed to the predetermined position using roller 1. Then, the threaded rod 6 on the device is removed, and the first assembly ring 7 is flipped upwards to remove the rear half-fastening ring 5, so that the half-fastening ring 5 is no longer in a closed state. Then, the two pipe sections are... Place the two halves of the fastening ring 5 on the front side, and reconnect and lock the two halves of the fastening ring 5 on the rear side to the two halves of the fastening ring 5 on the front side through the threaded rod 6. Then, bring the two pipe sections closer together through the fastening mechanism 9 to complete the welding operation. Turn the handle to drive the double-ended screw 92 to rotate, which in turn drives the two halves of the fastening ring 5 on the left and right sides to move inward along the limiting groove, thereby bringing the pipes together until they are closed. Then, the operator uses the welding equipment to weld the two pipe sections together through the gap between the two adjacent halves of the fastening ring 5 on the left and right sides, thus completing the pipe welding operation. Example 2
[0021] Based on Example 1, such as Figure 1 and Figure 4 As shown, it also includes a braking mechanism 10, which includes a fixing block 101. The fixing block 101 is connected to the fixing plate 3 on the left side. A foot brake bracket 102 is slidably connected to the fixing block 101. The foot brake bracket 102 has an L-shaped structure. A spring 103 is connected between the foot brake bracket 102 and the fixing block 101. The upper part of the foot brake bracket 102 can be engaged with the adjacent locking hole.
[0022] It should be noted that during the welding process, since welding is required at both pipe connections, operators need to frequently move around and change positions, which can be inconvenient for them. At this time, the foot brake 102 can be stepped on, causing it to move downwards and compressing the spring 103. This will disengage the foot brake 102 from the adjacent locking hole, allowing the first assembly ring 7 and the second assembly ring 8 to slide on the fixed plate 3. The pulley 4 makes it easier for the first assembly ring 7 and the second assembly ring 8 to slide. Under the action of the guide post 91, the half-type fastening ring and the pipe are in a relatively fixed state with the first assembly ring 7 and the second assembly ring 8. This will also drive the half-type fastening ring 5 and the pipe to move in the same direction until the pipe is adjusted to a suitable position. Then, the foot brake 102 is released, so that the foot brake 102 returns to its original position and the spring 103 returns to its original position. At this time, the foot brake 102 will engage with the adjacent locking hole, thereby fixing the first assembly ring 7 and the second assembly ring 8 on the fixing plate 3, so that the pipe is in a stationary state. This fixes the position of the pipe during welding, making the welding process more stable. This method allows the operator to avoid frequently changing positions during welding, making the welding process more convenient.
[0023] It should be understood that the above description is for illustrative purposes only and is not intended to limit the present invention. Those skilled in the art will understand that variations of the present invention will be included within the scope of the claims herein.
Claims
1. A fastening device for pipelines used in water conservancy and hydropower construction, characterized in that, The system includes a base plate (2), with four rollers (1) rotatably connected to the lower part of the base plate (2). Fixed plates (3) are connected to the upper sides of both the left and right sides of the base plate (2). Three pulleys (4) are rotatably connected to the inner side of each fixed plate (3). A first assembly ring (7) is slidably connected between the pulleys (4). A second assembly ring (8) is rotatably connected to the upper part of the first assembly ring (7). The second assembly ring (8) and the pulleys (4) are slidably connected. Both the first assembly ring (7) and the second assembly ring (8) have several locking holes and four limiting grooves. Two half-type fastening rings (5) are placed between the left and right sides of the second assembly ring (8). The upper and lower parts of the two adjacent half-type fastening rings (5) are fixed by threaded rods (6). A fastening mechanism (9) is provided between the lower parts of the two half-type fastening rings (5) on the front side. The fastening mechanism (9) includes guide posts (91). Two guide posts (91) are connected to each half-type fastening ring (5). The guide posts (91) are slidably connected to the adjacent limiting grooves. A two-way screw rod (92) is threadedly connected between the two guide posts (91) on the lower front side. The two-way screw rod (92) is rotatably connected to the second assembly ring (8).
2. The hydraulic and hydropower construction pipeline fastening device according to claim 1, characterized in that, It also includes a braking mechanism (10), which includes a fixing block (101). The fixing block (101) is connected to the fixing plate (3) on the left side. A foot brake bracket (102) is slidably connected to the fixing block (101). A spring (103) is connected between the foot brake bracket (102) and the fixing block (101). The upper part of the foot brake bracket (102) can engage with the adjacent locking hole.
3. A pipe fastening device for water conservancy and hydropower construction according to claim 1, characterized in that, The base plate (2) has a hollow structure.
4. A pipe fastening device for water conservancy and hydropower construction according to claim 1, characterized in that, All threaded rods (6) are detachable connection structures.
5. A pipe fastening device for water conservancy and hydropower construction according to claim 1, characterized in that, The bidirectional lead screw (92) is provided with a handle.
6. A pipe fastening device for water conservancy and hydropower construction according to claim 2, characterized in that, The foot brake bracket (102) has an L-shaped structure.