Pipeline sealing structure for water conservancy project
By incorporating an embedded tube and clamping plate structure, an annular sealing plate, and fixing bolts, the problem of reduced sealing performance and loosening caused by aging of the flange and gasket is solved, achieving higher sealing performance and stability, and extending the service life of the flange.
Patent Information
- Application Number
- CN202520588433.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-03-31
AI Technical Summary
In the existing technology, the connection method between the flange and the gasket is prone to aging due to long-term compression, which leads to a decrease in sealing performance. In addition, the flange connection becomes loose, affecting the sealing effect of the pipeline.
The design incorporates an embedded tube and a clamping plate structure, combined with an annular sealing plate and a T-groove design, to enhance the connection stability between the flange and the embedded tube. The flange is further secured by fixing bolts and an arc-shaped sealing cover, improving sealing performance and stability.
It effectively prevents flange loosening, improves the sealing and stability of pipe connections, and extends the service life of flanges.
Smart Images

Figure CN223768355U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline connection technology, and in particular to a pipeline sealing structure for water conservancy projects. Background Technology
[0002] Water conservancy projects are engineering projects constructed to control and regulate surface water and groundwater in nature to achieve the purpose of eliminating harm and promoting benefits. They are also called water engineering projects. Water conservancy projects require the construction of different types of hydraulic structures such as dams, dikes, spillways, sluices, intakes, canals, ferries, rafts, and fishways to achieve their goals. Pipelines are devices made up of pipes, pipe fittings, and valves used to transport gases, liquids, or fluids containing solid particles.
[0003] However, in the existing technology, the connection between two pipes is usually sealed by a flange and a gasket. The gasket will age due to the pressure of the flange over a long period of time, which will reduce the sealing performance and cause water leakage. Moreover, the flanges are prone to loosening over time after connection, which reduces the connection between the two flanges and reduces the sealing connection of the pipe. Utility Model Content
[0004] The purpose of this invention is to solve the problem that in the existing technology, the connection between two pipes is usually sealed with a flange and a gasket. However, the gasket will age due to the pressure of the flange over a long period of time, which will reduce the sealing performance and cause water leakage. Moreover, the flanges are prone to loosening over time after being connected, which will reduce the connection between the two flanges and reduce the sealing connection of the pipe.
[0005] To achieve the above objectives, this utility model adopts the following technical solution: a pipe sealing structure for water conservancy projects, comprising: two connecting pipes and an inner pipe, wherein each of the two connecting pipes has two slots inside, and each of the two sets of slots has a retaining plate movably embedded inside, and the two retaining plates are fixedly installed on the outer surface of the inner pipe, further comprising:
[0006] Multiple sealing rings are fixedly installed on the outer surface of the inner tube;
[0007] An annular sealing plate is fixedly installed at the center of the outer surface of the inner tube. Two T-shaped grooves are formed on the outer surface of the annular sealing plate, and the two T-shaped grooves are symmetrical to each other.
[0008] Both flanges are fixedly installed at opposite ends of the two connecting pipes.
[0009] Preferably, annular grooves are provided on the opposite surfaces of the two flanges, and T-shaped plates are fixedly embedded inside the two annular grooves.
[0010] The technical effect of adopting the above-mentioned further solution is that the T-shaped plate fixedly embedded inside the annular groove is embedded in the T-shaped groove, so that the flange is connected to the embedded pipe, which can prevent the flange from loosening and improve the sealing performance and stability.
[0011] Preferably, a fixing bolt is movably embedded inside the mounting holes of both flanges, and a nut is threaded onto the outer surface of each fixing bolt.
[0012] The technical effect of adopting the above-mentioned further solution is that multiple fixing bolts are embedded inside the mounting holes, and then nuts are threaded onto the outer surface of the fixing bolts to fix the two flanges.
[0013] Preferably, two arc-shaped sealing covers are movably fitted on the outer surfaces of the two flanges, and connecting plates are fixedly installed on the opposite surfaces of the two arc-shaped sealing covers.
[0014] The technical effect of adopting the above-mentioned further solution is that the two arc-shaped sealing covers can be connected together by the connecting plate.
[0015] Preferably, each of the connecting plates has a fixing hole on its outer surface, and a fixing bolt is movably embedded in the fixing hole.
[0016] The technical effect of adopting the above-mentioned further solution is that the second fixing bolt is embedded inside the fixing hole, and the thread of the second fixing bolt is rotated and embedded inside the second nut, thus fixing the two arc-shaped sealing covers together.
[0017] Preferably, one set of the connecting plates has a nut two fixedly installed on its outer surface near the fixing hole.
[0018] The technical effect of adopting the above-mentioned further solution is that the second nut facilitates the connection of the second bolt to it, and better fixes the arc-shaped sealing cover.
[0019] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0020] 1. In this utility model, the inner tube is embedded into the groove inside one of the connecting tubes by means of a clamping plate, and then the other connecting tube is sleeved on the outer surface of the inner tube. The inner tube is fixedly embedded inside the two connecting tubes by means of a clamping plate, which improves the sealing effect at the connection. An annular sealing plate is fixedly installed at the center of the outer surface of the inner tube. Two T-shaped grooves are opened on the outer surface of the annular sealing plate. The annular sealing plate is embedded inside the annular grooves opened on the outer surfaces of the two flanges, which further improves the sealing performance. The T-shaped plate fixedly embedded inside the annular groove is embedded inside the T-shaped groove, so that the flange is connected to the inner tube, which can prevent the flange from loosening and further improve the sealing performance and stability.
[0021] 2. In this utility model, multiple fixing bolts are embedded inside the mounting holes, and then nuts are threaded onto the outer surface of the fixing bolts to fix the two flanges. Two arc-shaped sealing covers are fitted onto the outer surface of the flanges to seal them and prevent damage. This not only improves the sealing performance but also extends the service life of the flanges. Fixing bolts are embedded inside the fixing holes, and the threads of fixing bolts are rotated to fit inside nuts, thus fixing the two arc-shaped sealing covers together. Attached Figure Description
[0022] Figure 1 This utility model provides a structural schematic diagram of a pipe sealing structure for water conservancy projects;
[0023] Figure 2 This utility model provides an exploded structural diagram of a pipe sealing structure for water conservancy projects;
[0024] Figure 3 This utility model provides a cross-sectional structural diagram of a pipe sealing structure for water conservancy projects;
[0025] Figure 4 This utility model proposes a pipe sealing structure for water conservancy projects. Figure 2 Enlarged structural diagram at point A in the middle.
[0026] Legend:
[0027] 1. Connecting pipe; 101. Arc-shaped sealing cover; 102. Connecting plate; 103. Flange; 104. Annular groove; 105. Slot; 106. T-shaped plate; 107. Fixing bolt one; 108. Nut one; 109. Fixing hole; 110. Fixing bolt two; 111. Annular sealing plate; 112. Embedded pipe; 113. Sealing ring; 114. Slot; 115. Nut two; 116. T-shaped groove. Detailed Implementation
[0028] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0030] Example 1, such as Figure 1-4As shown, this utility model provides a pipe sealing structure for water conservancy projects, including: two connecting pipes 1 and an embedded pipe 112. Each of the two connecting pipes 1 has two slots 105 inside, and each of the two sets of slots 105 has a retaining plate 114 movably embedded inside. Both retaining plates 114 are fixedly installed on the outer surface of the embedded pipe 112. It also includes: multiple sealing rings 113, all fixedly installed on the outer surface of the embedded pipe 112; an annular sealing plate 111, fixedly installed at the center of the outer surface of the embedded pipe 112, with two T-shaped grooves 116 on the outer surface of the annular sealing plate 111, the two T-shaped grooves 116 being symmetrical; two flanges 103, all fixedly installed at the opposite ends of the two connecting pipes 1; and annular grooves 104 are opened on the opposite surfaces of the two flanges 103, with T-shaped plates 106 fixedly embedded inside each of the two annular grooves 104.
[0031] In this embodiment, the inner tube 112 is embedded into the groove 105 inside one of the connecting tubes 1 by means of a clamping plate 114. Then, the other connecting tube 1 is sleeved on the outer surface of the inner tube 112. The inner tube 112 is fixedly embedded in the two connecting tubes 1 by means of a clamping plate 114, which improves the sealing effect at the connection. An annular sealing plate 111 is fixedly installed at the center of the outer surface of the inner tube 112. Two T-shaped grooves 116 are opened on the outer surface of the annular sealing plate 111. The annular sealing plate 111 is embedded in the annular grooves 104 opened on the outer surface of the two flanges 103, which further improves the sealing performance. The T-shaped plate 106 fixedly embedded in the annular grooves 104 is embedded in the T-shaped grooves 116, so that the flanges 103 are connected to the inner tube 112, which can prevent the flanges 103 from loosening and further improve the sealing performance and stability.
[0032] Example 2, as Figure 1-4 As shown, fixing bolts 107 are movably embedded inside the mounting holes of both flanges 103, and nuts 108 are threaded onto the outer surfaces of multiple fixing bolts 107; two arc-shaped sealing covers 101 are movably fitted onto the outer surfaces of the two flanges 103, and connecting plates 102 are fixedly installed on the opposite faces of the two arc-shaped sealing covers 101; fixing holes 109 are opened on the outer surfaces of multiple connecting plates 102, and fixing bolts 110 are movably embedded inside the fixing holes 109; nuts 115 are fixedly installed on the outer surface of one set of connecting plates 102 near the fixing holes 109.
[0033] In this embodiment, multiple fixing bolts 107 are embedded inside the mounting holes, and then nuts 108 are threaded onto the outer surface of the fixing bolts 107 to fix the two flanges 103. Two arc-shaped sealing covers 101 are fitted onto the outer surface of the flanges 103 to seal the flanges 103 and prevent damage to the flanges 103. This not only improves the sealing performance but also extends the service life of the flanges 103. Fixing bolts 110 are embedded inside the fixing holes 109, and the threads of fixing bolts 110 are rotated to fit inside nuts 115, thus fixing the two arc-shaped sealing covers 101 together.
[0034] Working principle: In use, the inner tube 112 is embedded into the groove 105 inside one of the connecting tubes 1 through the clamping plate 114. Then, the other connecting tube 1 is sleeved on the outer surface of the inner tube 112. The inner tube 112 is fixedly embedded inside the two connecting tubes 1 by the clamping plate 114, improving the sealing effect at the connection. An annular sealing plate 111 is fixedly installed at the center of the outer surface of the inner tube 112. Two T-shaped grooves 116 are opened on the outer surface of the annular sealing plate 111. The annular sealing plate 111 is embedded inside the annular grooves 104 opened on the outer surface of the two flanges 103, further improving the sealing performance. The T-shaped plates 106 fixedly embedded inside the annular grooves 104 are embedded inside the T-shaped grooves 116, making the flanges... 103 is connected to the inner tube 112 to prevent flange 103 from loosening and to improve sealing and stability. Multiple fixing bolts 107 are embedded in the mounting holes, and then nuts 108 are threaded onto the outer surface of fixing bolts 107 to fix the two flanges 103. Two arc-shaped sealing covers 101 are fitted onto the outer surface of flange 103 to seal flange 103 and prevent damage to flange 103. This not only improves sealing performance but also extends the service life of flange 103. Fixing bolts 110 are embedded in fixing holes 109, and the threads of fixing bolts 110 are rotated to fit into nuts 115, thus fixing the two arc-shaped sealing covers 101 together.
[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A pipeline sealing structure for hydraulic engineering, comprising: Two connecting pipes (1) and an embedded pipe (112), the interiors of the two connecting pipes (1) are both provided with two clamping grooves (105), the interiors of the two clamping grooves (105) are both movably embedded with clamping plates (114), the two clamping plates (114) are both fixedly installed on the outer surface of the embedded pipe (112), characterized in that further comprising: A plurality of sealing rings (113) are fixedly installed on the outer surface of the embedded pipe (112); An annular sealing plate (111) is fixedly installed on the center of the outer surface of the embedded pipe (112), the outer surface of the annular sealing plate (111) is provided with two T-shaped grooves (116), and the two T-shaped grooves (116) are symmetrical. Two flange plates (103) are fixedly installed on the opposite ends of the two connecting pipes (1).
2. The pipe sealing structure for hydraulic engineering according to claim 1, characterized in that: The opposite surfaces of the two flange plates (103) are both provided with annular grooves (104), and the interiors of the two annular grooves (104) are both fixedly embedded with T-shaped plates (106).
3. The pipe sealing structure for hydraulic engineering according to claim 1, characterized in that: The interiors of the mounting holes of the two flange plates (103) are both movably embedded with fixed bolts (107), and the outer surfaces of the fixed bolts (107) are all threadedly installed with nuts (108).
4. The pipe sealing structure for hydraulic engineering according to claim 1, characterized in that: The outer surfaces of the two flange plates (103) are movably sleeved with two arc-shaped sealing covers (101), and the opposite surfaces of the two arc-shaped sealing covers (101) are both fixedly installed with connecting plates (102).
5. The pipe sealing structure for hydraulic engineering according to claim 4, characterized in that: The outer surfaces of the connecting plates (102) are all provided with fixing holes (109), and the interiors of the fixing holes (109) are movably embedded with fixed bolts (110).
6. The pipe sealing structure for hydraulic engineering according to claim 4, characterized in that: The outer surfaces of one group of the connecting plates (102) close to the fixing holes (109) are fixedly installed with nuts (115).