Water conservancy and hydropower pipeline interface leak-proof structure
By combining rubber gaskets and aramid fiber leak-proof tape with rotating rods and other structures, the problems of cracking and cumbersome leak prevention during the splicing of water conservancy and hydropower pipelines have been solved, achieving stable pipeline fixation and simplified leak prevention, thus improving the practicality of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINHUANGDAO XINYU WATER CONSERVANCY ENG CO LTD
- Filing Date
- 2025-08-20
- Publication Date
- 2026-06-19
AI Technical Summary
Existing water conservancy and hydropower pipelines are prone to rupture due to excessive pressure during splicing, and the leak prevention treatment of pipeline joints is complicated, requiring metal clamps of different specifications for fixation, which reduces the practicality of the equipment.
The system employs a combination of rubber gaskets and aramid fiber leak-proof tape, along with rotating rods, bolts, and positioning rods. Through elastic support and high tensile strength, it prevents leaks, avoids excessive local pressure, and achieves stable pipe fixation and leak prevention.
It effectively prevents pipe rupture, simplifies leak prevention, improves the practicality and convenience of the equipment, and has a simple structure that is easy to promote.
Smart Images
Figure CN224381034U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water conservancy and hydropower pipeline technology; more specifically, it relates to a leak-proof structure for water conservancy and hydropower pipeline interfaces. Background Technology
[0002] Hydropower pipelines are the core pressure pipelines in hydropower stations that transport high-head, high-flow water to drive turbine generator units. They are usually made of steel, concrete, or prestressed reinforced concrete. They are not only the key energy conversion hub that ensures the efficient conversion of hydropower into clean electrical energy, but also undertake the safe water transport function for comprehensive utilization tasks such as flood control, water supply, and irrigation.
[0003] Water conservancy and hydropower pipeline interfaces are key nodes connecting pipelines, valves and equipment. They need to be able to resist water hammer impact, adapt to foundation settlement and temperature deformation, and take into account the convenience of inspection, maintenance and disassembly. They are the core technical link to ensure the safe and reliable operation of water transmission systems.
[0004] Currently, in the use of existing water conservancy and hydropower pipelines, the tightening of pipes during splicing is often necessary. This tightening is typically done with metal materials, usually bolts, which can put excessive pressure on the pipes, potentially causing them to rupture. This reduces the practicality of the equipment. Furthermore, the current method of preventing leaks at pipe joints generally uses metal clamps for fixing. However, since pipe specifications often vary, different sizes of metal clamps may need to be prepared for different applications, which is cumbersome and further reduces the practicality of the equipment. Therefore, there is an urgent need for a leak-proof structure for water conservancy and hydropower pipeline joints to solve these problems. Utility Model Content
[0005] In order to overcome the above-mentioned defects of the prior art, this utility model provides a leak-proof structure for water conservancy and hydropower pipeline interfaces to solve the problems existing in the background art.
[0006] This utility model provides the following technical solution: a leak-proof structure for water conservancy and hydropower pipeline interfaces, comprising:
[0007] The mounting bracket has a gasket fixedly connected to the outer surface of its lower end, and a leak-proof strip fixedly connected to the outer surface of one end of the mounting bracket. The outer surface of the upper end of the mounting bracket is provided with a tightening structure. The tightening structure includes a rotating frame, a rotating rod, a slot, a bolt, a positioning rod, a bracket, a moving rod, a positioning plate, and a spring. There are two sets of rotating frames, and the two sets of rotating frames are respectively fixedly connected to the outer surface of one side and the middle position of the upper end of the mounting bracket.
[0008] Preferably, the gasket is made of rubber and the leak-proof strip is made of aramid fiber. This design, through the elasticity and toughness of the gasket itself, can make the pipe more stable when it is fixed, and at the same time reduce the local pressure on the pipe, thus preventing the pipe from breaking.
[0009] Preferably, the rotating rod is inserted inside the two sets of rotating frames, the slot is opened inside the outer surface of the rotating rod located between the two sets of rotating frames, the bolt is threaded to the inner surface of the upper side of the rotating rod, a positioning rod is fixedly connected to the outer surface of the other side of the rotating rod, a bracket is fixedly connected to the outer surface of the upper end of the mounting bracket, and a moving rod is inserted inside the outer surface of both ends of the bracket. A positioning plate is fixedly connected to the outer surface of multiple sets of moving rods that are close to each other, and a spring is sleeved on the outer surface of multiple sets of moving rods. This design allows the rotating rod to rotate inside the rotating frame.
[0010] Preferably, the rotating frame has a rotating groove inside, and the outer surface of the rotating rod has a rotating ring. The position of the rotating ring matches the inside of the rotating groove, and the outer dimensions of the rotating ring are adapted to the inner dimensions of the rotating groove. This design makes the rotating rod more stable when rotating inside the rotating frame, and the rotating rod will not detach from the inside of the rotating frame.
[0011] Preferably, the internal dimensions of the slot are adapted to the external dimensions of the leak-proof tape, and a circular groove is provided inside the outer surface of the upper side of the slot, and the internal dimensions of the circular groove are adapted to the external dimensions of the upper end of the bolt. This design allows the bolt to be stored inside the circular groove, which can prevent the bolt from blocking the leak-proof tape when the leak-proof tape is wrapped around the outer surface of the rotating rod.
[0012] Preferably, the positioning rod has a ratchet groove inside, and the outer surfaces of the two sets of positioning plates close to each other are provided with pawl teeth, and the outer surfaces of the pawl teeth match the inner wall surface of the ratchet groove. The outer surfaces of the two ends of the spring abut against the inner wall surface of the bracket and the outer surface of the positioning plate, respectively. This design, through the elasticity of the spring itself, can drive the two sets of positioning plates to move inward and abut against the outer surface of the positioning rod.
[0013] The technical effects and advantages of this utility model are as follows: This utility model utilizes the elasticity and toughness of the gasket material itself to effectively support the pipe when it is attached to the outer surface of the pipe. At the same time, it can balance the pressure at various points in the pipe and avoid the situation where the pipe is ruptured due to excessive local pressure. The high tensile strength and high toughness of the leak-proof tape material itself can effectively tighten the pipe to prevent leakage, and it will not break itself, thus improving the practicality of the equipment to a certain extent.
[0014] By inserting one end of the leak-proof tape into the slot and rotating the bolt to tighten it against the outer surface of the tape, the leak-proof tape is fixed inside the slot. Rotating the rotating rod clockwise then causes the leak-proof tape to retract onto the outer surface of the rod, tightening the pipe. Simultaneously, the spring's elasticity moves the two positioning plates inward, engaging the ratchet groove and pawl teeth to prevent the rotating rod from rotating back and causing the leak-proof tape to loosen. This effectively tightens the pipe to prevent leaks, improving the equipment's practicality. Furthermore, its overall structure is simple and reasonable, highly practical, and easy to promote and apply. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0016] Figure 2 This is a three-dimensional structural diagram of the gasket and leak-proof tape of this utility model.
[0017] Figure 3 This is an exploded three-dimensional structural diagram of the tightening structure of this utility model.
[0018] Figure 4 This is a partial three-dimensional exploded view of the tightening structure of this utility model.
[0019] The attached figures are labeled as follows: 1. Mounting bracket; 2. Gasket; 3. Leak-proof tape; 4. Tightening structure; 41. Rotating bracket; 42. Rotating rod; 43. Slot; 44. Bolt; 45. Positioning rod; 46. Bracket; 47. Moving rod; 48. Positioning plate; 49. Spring. Detailed Implementation
[0020] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The water conservancy and hydropower pipelines involved in this utility model are not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0021] Example 1, as Figure 1 and Figure 2 As shown in the figure, this embodiment proposes a leak-proof structure for water conservancy and hydropower pipeline interfaces, including:
[0022] Mounting bracket 1, with a gasket 2 fixedly connected to the outer surface of the lower end of mounting bracket 1, and a leak-proof strip 3 fixedly connected to the outer surface of one end of mounting bracket 1. A tightening structure 4 is provided on the outer surface of the upper end of mounting bracket 1. The gasket 2 is made of rubber, and the leak-proof strip 3 is made of aramid fiber.
[0023] In this embodiment, the elasticity and toughness of the gasket 2 itself can effectively support the pipe when it is attached to the outer surface of the pipe, and at the same time balance the pressure at various positions of the pipe, which can prevent the pipe from breaking due to excessive local pressure. The high tensile strength and high toughness of the leak-proof tape 3 itself can effectively tighten the pipe to prevent leakage, and it will not break itself.
[0024] Example 2, as Figure 3 and Figure 4 As shown, based on the same concept as the above embodiments, this embodiment also proposes:
[0025] The tightening structure 4 includes a rotating frame 41, a rotating rod 42, a slot 43, a bolt 44, a positioning rod 45, a bracket 46, a moving rod 47, a positioning plate 48, and a spring 49. The rotating frame 41 is provided in two sets, and the two sets of rotating frames 41 are respectively fixedly connected to the outer surface of the upper side and the middle position of the mounting frame 1. The rotating rod 42 is inserted into the interior of the two sets of rotating frames 41. The interior of the rotating frame 41 is provided with a rotating groove, and the outer surface of the rotating rod 42 is provided with a rotating ring. The position of the rotating ring matches the interior of the rotating groove, and the outer dimensions of the rotating ring are adapted to the inner dimensions of the rotating groove. This design allows the rotating rod 42 to rotate inside the rotating frame 41. At the same time, the rotating ring rotates inside the rotating groove, making the rotation of the rotating rod 42 more stable, and the rotating rod 42 will not detach from the interior of the rotating frame 41.
[0026] The slot 43 is located inside the outer surface of the rotating rod 42 between the two sets of rotating frames 41. The bolt 44 is threaded into the inner surface of the upper side of the rotating rod 42. The internal dimensions of the slot 43 are adapted to the external dimensions of the leak-proof strip 3. A circular groove is provided inside the upper side of the outer surface of the slot 43, and the internal dimensions of the circular groove are adapted to the external dimensions of the upper end of the bolt 44. This design allows the leak-proof strip 3 to be inserted into the slot 43, and the leak-proof strip 3 is more stable inside the slot 43. By rotating the bolt 44, the lower outer surface of the bolt 44 can be pressed against the outer surface of the leak-proof strip 3, thereby positioning the leak-proof strip 3 inside the slot 43. At the same time, the bolt 44 can be completely retracted into the circular groove, preventing the bolt 44 from obstructing the rotation of the rotating rod 42. By rotating the rotating rod 42, the leak-proof strip 3 can be wound up on the outer surface of the rotating rod 42, thereby tightening the pipe with the leak-proof strip 3.
[0027] A positioning rod 45 is fixedly connected to the outer surface of the other side of the rotating rod 42. A bracket 46 is fixedly connected to the outer surface of the upper end of the mounting bracket 1. Moving rods 47 are inserted into the inner surface of the outer surfaces of both ends of the bracket 46. Positioning plates 48 are fixedly connected to the outer surfaces of multiple moving rods 47 that are close to each other. Springs 49 are sleeved on the outer surfaces of multiple moving rods 47. A ratchet groove is opened inside the positioning rod 45. A pawl tooth is provided on the outer surface of the two positioning plates 48 that are close to each other. The outer surface of the pawl tooth matches the inner wall surface of the ratchet groove. The outer surfaces of both ends of the spring 49 abut against the inner wall surface of the bracket 46 and the outer surface of the positioning plate 48, respectively. This design can support the positioning plate 48 through the elasticity of the spring 49, thereby driving the two positioning plates 48 to move inward automatically and making the pawl tooth engage with the ratchet groove. Through the support of the pawl tooth on the ratchet groove, the rotating rod 42 can only rotate in one direction, which makes it easier to tighten the leak-proof tape 3.
[0028] The rotating rod 42, positioning rod 45, and positioning plate 48 in this application, as well as all movable parts, require regular cleaning and maintenance, including but not limited to dust removal and lubrication.
[0029] Working principle: When using the equipment, first place the mounting bracket 1 at the pipe interface and attach the gasket 2 to the surface of the pipe to be leak-proofed. Then, insert one end of the leak-proof tape 3 into the slot 43. Then, rotate the bolt 44 so that the outer surface of the lower end of the bolt 44 presses against the outer surface of the leak-proof tape 3. Then, rotate the rotating rod 42 clockwise to drive the leak-proof tape 3 to roll up to the outer surface of the rotating rod 42, thereby driving the leak-proof tape 3 to wrap around the outer surface of the pipe and tighten it. At the same time, through the elasticity of the spring 49, the two sets of positioning plates 48 move inward, which can drive the ratchet groove and the pawl teeth to engage with each other, so that the rotating rod 42 will not rotate back. Therefore, when tightening the leak-proof tape 3, the leak-proof tape 3 will not automatically loosen, thus avoiding water leakage at the pipe interface. The above is the complete working principle of this utility model.
[0030] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.
[0031] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0032] In conclusion, the above are merely preferred embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A leak-proof structure for water conservancy and hydropower pipeline interfaces, characterized in that, include: Mounting bracket (1), the outer surface of the lower end of the mounting bracket (1) is fixedly connected with a gasket (2), and the outer surface of one end of the mounting bracket (1) is fixedly connected with a leak-proof strip (3), and the outer surface of the upper end of the mounting bracket (1) is provided with a tightening structure (4). The tightening structure (4) includes a rotating frame (41), a rotating rod (42), a slot (43), a bolt (44), a positioning rod (45), a bracket (46), a moving rod (47), a positioning plate (48), and a spring (49). The rotating frame (41) is provided in two sets, and the two sets of rotating frames (41) are respectively fixedly connected to the outer surface of the upper side and the middle position of the mounting frame (1).
2. The anti-leakage structure for water conservancy and hydropower pipeline interfaces according to claim 1, characterized in that: The gasket (2) is made of rubber, and the leak-proof strip (3) is made of aramid fiber.
3. The anti-leakage structure for water conservancy and hydropower pipeline interfaces according to claim 1, characterized in that: The rotating rod (42) is inserted inside the two sets of rotating frames (41). The slot (43) is opened inside the outer surface of the rotating rod (42) located between the two sets of rotating frames (41). The bolt (44) is threaded to the inner surface of the upper side of the rotating rod (42). A positioning rod (45) is fixedly connected to the outer surface of the other side of the rotating rod (42). A bracket (46) is fixedly connected to the outer surface of the upper end of the mounting frame (1). Moving rods (47) are inserted into the inner surface of the outer surfaces of both ends of the bracket (46). A positioning plate (48) is fixedly connected to the outer surface of the multiple sets of moving rods (47) that are close to each other. A spring (49) is sleeved on the outer surface of the multiple sets of moving rods (47).
4. The anti-leakage structure for water conservancy and hydropower pipeline interfaces according to claim 1, characterized in that: The rotating frame (41) has a rotating groove inside, and the rotating rod (42) has a rotating ring on its outer surface. The position of the rotating ring matches the inside of the rotating groove, and the external dimensions of the rotating ring are adapted to the internal dimensions of the rotating groove.
5. The anti-leakage structure for water conservancy and hydropower pipeline interfaces according to claim 1, characterized in that: The internal dimensions of the slot (43) are adapted to the external dimensions of the leak-proof strip (3). A circular groove is provided on the inner surface of the upper side of the slot (43), and the internal dimensions of the circular groove are adapted to the external dimensions of the upper end of the bolt (44).
6. The anti-leakage structure for water conservancy and hydropower pipeline interfaces according to claim 1, characterized in that: The positioning rod (45) has a ratchet groove inside. The outer surfaces of the two sets of positioning plates (48) that are close to each other are provided with pawl teeth, and the outer surface of the pawl teeth matches the inner wall surface of the ratchet groove. The outer surfaces of the two ends of the spring (49) abut against the inner wall surface of the bracket (46) and the outer surface of the positioning plate (48), respectively.