PE pipeline waterproof sealing structure for sewage treatment

Abstract

The utility model discloses a PE (Poly Ethylene) pipeline waterproof sealing structure for sewage treatment, which comprises a connecting assembly, PE pipe bodies are detachably mounted at two ends of the connecting assembly, anti-leakage assemblies are arranged between the two ends of the connecting assembly and the PE pipe bodies, a plurality of fixing bolts are arranged between the connecting assembly and the PE pipe bodies, and the connecting assembly is connected with the PE pipe bodies. The PE pipe body and the anti-leakage assembly are fixedly connected through a fixing bolt. According to the scheme, the diameter of the interior of the circulating groove is larger than the diameter of the inner wall of the fixed pipe, and when sewage flows into the circulating groove, the flow speed can be reduced, so that the pressure of water flow is reduced, the water pressure on the pipeline connecting position is reduced, and the probability of leakage at the pipeline connecting position is reduced; contact between the sealing ring and sewage in the fixed pipe and the circulating groove is reduced, corrosion of the sealing ring is avoided, aging of the sealing ring is reduced, the service life of the sealing ring is prolonged, and meanwhile the sealing effect of the pipeline connecting position is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PE pipe sealing, and more specifically, to a waterproof sealing structure of a PE pipe for sewage treatment. Background Art

[0002] PE pipe is made of polyethylene and is a commonly used piping material. PE pipe offers advantages such as corrosion resistance, pressure resistance, and abrasion resistance, making it widely used in water supply, drainage, and natural gas pipelines. PE pipe comes in two types: high-density polyethylene (HDPE) and low-density polyethylene (LDPE), and exhibits excellent plasticity and machinability.

[0003] Currently, most of the connections between PE pipes are sealed only through bolts and flanges. Long-term use may cause the sealing ring to age, resulting in loose sealing at the connection and leakage. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a waterproof sealing structure for PE pipes for sewage treatment, so as to solve the problem that most of the connections between existing PE pipes are only sealed by bolts and flanges, which may cause aging of the sealing ring during long-term use, resulting in loose sealing of the connection parts and leakage.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a waterproof sealing structure for PE pipes for sewage treatment, comprising a connecting assembly, wherein both ends of the connecting assembly are detachably mounted with a PE pipe body, an anti-leakage assembly is provided between both ends of the connecting assembly and the PE pipe body, a plurality of fixing bolts are provided between the connecting assembly and the PE pipe body, and the connecting assembly, the PE pipe body and the anti-leakage assembly are fixedly connected by fixing bolts; the connecting assembly comprises a connecting block, the interior of the connecting block is a flow groove, and the outer surface of the connecting block is fixedly connected to a connecting flange, A second limiting groove is provided on both sides of the connecting flange, and a clamping block is fixedly connected to both sides of the connecting block. The two sides of the connecting block are located above the clamping block and are second inclined surfaces. The outer edges of both sides of the connecting block are embedded with sealing rings; the PE pipe body includes a fixed pipe, and a clamping groove is provided on both sides of the fixed pipe close to the inner wall. A first inclined surface is provided on both sides of the fixed pipe close to the outer edge. The outer surfaces of the two ends of the fixed pipe are fixedly sleeved with fixed flanges, a sealing groove is provided on the side of the fixed flange, and a first limiting groove is provided along the end of the fixed flange close to the sealing groove.

[0006] The diameter of the middle portion of the circulation groove is larger than the diameters at both ends, and the diameters at both ends of the circulation groove are the same as the diameter of the inner wall of the fixed tube.

[0007] Among them, the clamping block is fitted and installed inside the clamping groove, and the second inclined surface is in contact with the first inclined surface. The sealing ring is fitted and installed inside the sealing groove. The size and position of the second limiting groove correspond to the sealing ring respectively. A placement groove is formed between the connecting flange and the fixed flange.

[0008] Among them, the leakage prevention component includes a support ring. Limiting blocks are fixedly connected to both sides of the support ring. An expansion rubber water stop ring is fitted and installed at the bottom of the support ring. The support ring is fitted and installed inside the placement groove between the fixed flange and the connecting flange. The limiting blocks at both ends of the support ring are respectively fitted and installed inside the first limiting groove and the second limiting groove. The expansion rubber water stop ring is attached to the outer surface of the connecting block.

[0009] Among them, threaded holes are provided at the positions corresponding to the fixed flange, the connecting flange and the limiting block. The limiting blocks on both sides of the connecting flange and the fixed flange are fixedly connected by fixing bolts.

[0010] The technical effects and advantages of the present utility model:

[0011] In the above solution, the diameter inside the flow-through groove is larger than the inner diameter of the fixed pipe. When sewage flows into the flow-through groove, the flow rate will slow down, thereby reducing the water pressure, reducing the water pressure at the pipe connection, and reducing the probability of leakage at the pipe connection. The clamping block is fitted inside the clamping groove of the fixed pipe, and the first inclined surface is in contact with the second inclined surface, reducing the contact between the sealing ring and the sewage inside the fixed pipe and the flow-through groove, avoiding corrosion of the sealing ring, reducing the aging of the sealing ring, increasing the service life of the sealing ring, and improving the sealing effect at the pipe connection at the same time;

[0012] When sewage leaks, the sewage will flow out between the connecting block and the fixed pipe, and thus come into contact with the expansion rubber water stop ring, causing the expansion rubber water stop ring to expand and its volume to increase. Then it fits between the fixed flange and the connecting flange to form a secondary seal, enhancing the sealing strength and preventing sewage leakage at the pipe connection. Description of the Drawings

[0013] Figure 1 is the overall structural schematic diagram of the present utility model;

[0014] Figure 2 is the overall sectional structural schematic diagram of the present utility model;

[0015] Figure 3 is the structural schematic diagram of the PE pipe body port of the present utility model;

[0016] Figure 4 is the sectional structural schematic diagram of the connection component of the present utility model;

[0017] Figure 5 This is a schematic diagram of the combined structure of the connection assembly and the PE pipe body of the utility model;

[0018] Figure 6 This is a schematic structural diagram of the anti-leakage component of the utility model.

[0019] The figures are marked as follows: 1. connecting assembly; 2. PE pipe body; 3. anti-leakage assembly; 4. fixing bolt; 11. connecting block; 12. circulation groove; 13. clamping block; 14. second inclined surface; 15. sealing ring; 16. connecting flange; 17. second limiting groove; 21. fixing pipe; 22. clamping groove; 23. first inclined surface; 24. fixing flange; 25. first limiting groove; 26. sealing groove; 31. support ring; 32. limiting block; 33. expansion rubber water stop ring. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, a detailed description will be given below with reference to the accompanying drawings and specific embodiments.

[0021] As attached Figure 1 To the attached Figure 4 The embodiment of the present invention provides a PE pipe waterproof sealing structure for sewage treatment, including a connecting component 1, both ends of the connecting component 1 are detachably mounted with a PE pipe body 2, anti-leakage components 3 are provided between both ends of the connecting component 1 and the PE pipe body 2, a plurality of fixing bolts 4 are provided between the connecting component 1 and the PE pipe body 2, the connecting component 1, the PE pipe body 2 and the anti-leakage component 3 are fixedly connected by the fixing bolts 4; the connecting component 1 includes a connecting block 11, the interior of the connecting block 11 is a flow groove 12, the outer surface of the connecting block 11 is fixedly connected to a connecting flange 16, and both sides of the connecting flange 16 are opened. There is a second limiting groove 17, and both sides of the connecting block 11 are fixedly connected with a clamping block 13. The two sides of the connecting block 11 are located above the clamping block 13 for a second inclined surface 14, and the outer edges of both sides of the connecting block 11 are embedded with a sealing ring 15; the PE pipe body 2 includes a fixed tube 21, and both sides of the fixed tube 21 are provided with a clamping groove 22 near the inner wall side, and both sides of the fixed tube 21 are provided with a first inclined surface 23 near the outer edge side. The outer surface of both ends of the fixed tube 21 is fixedly sleeved with a fixing flange 24, and a sealing groove 26 is provided on the side of the fixing flange 24. A first limiting groove 25 is provided along the end of the fixed flange 24 near the sealing groove 26.

[0022] Among them, the diameter of the middle part of the circulation groove 12 is larger than the diameter at both ends, and the diameter at both ends of the circulation groove 12 is the same as the diameter of the inner wall of the fixed pipe 21. The diameter inside the circulation groove 12 is larger than the diameter of the inner wall of the fixed pipe 21. When sewage flows into the interior of the circulation groove 12, the flow rate will slow down, thereby reducing the pressure of the water flow, reducing the water pressure on the pipe connection, and reducing the probability of leakage at the pipe connection.

[0023] As shown in the attachment Figure 5 As shown, the clamping block 13 is fitted and installed inside the clamping groove 22, and the second inclined surface 14 is in contact with the first inclined surface 23. The sealing ring 15 is fitted and installed inside the sealing groove 26. The size and position of the second limiting groove 17 correspond to those of the sealing ring 15 respectively. A placement groove is formed between the connecting flange 16 and the fixed flange 24. By fitting the clamping block 13 inside the clamping groove 22 of the fixed pipe 21 and making the first inclined surface 23 in contact with the second inclined surface 14, the contact between the sealing ring 15 and the sewage inside the fixed pipe 21 and the flow-through groove 12 is reduced, the sealing ring 15 is prevented from being corroded, the aging of the sealing ring 15 is reduced, the service life of the sealing ring 15 is prolonged, and at the same time, the sealing effect at the pipe connection is improved.

[0024] As shown in the attachment Figure 6 As shown, the anti-leakage component 3 includes a support ring 31. Limiting blocks 32 are fixedly connected to both sides of the support ring 31. An expansion rubber water stop ring 33 is fitted and installed at the bottom of the support ring 31. The support ring 31 is fitted and installed inside the placement groove between the fixed flange 24 and the connecting flange 16. The limiting blocks 32 at both ends of the support ring 31 are respectively fitted and installed inside the first limiting groove 25 and the second limiting groove 17. The expansion rubber water stop ring 33 is in contact with the outer surface of the connecting block 11. When leakage occurs between the fixed pipe 21 and the connecting block 11, sewage will flow out between the connecting block 11 and the fixed pipe 21, and thus come into contact with the expansion rubber water stop ring 33, causing the expansion rubber water stop ring 33 to expand and its volume to increase. Then it fits between the fixed flange 24 and the connecting flange 16 to form a secondary seal, enhancing the sealing strength and preventing sewage leakage at the pipe connection.

[0025] Among them, threaded holes are provided at positions corresponding to the fixed flange 24, the connecting flange 16 and the limiting block 32. The limiting blocks 32 on both sides of the connecting flange 16 and the fixed flange 24 are fixedly connected by fixing bolts 4.

[0026] The working process of the present utility model is as follows:

[0027] During installation, the limiting block 32 on one side of the support ring 31 is sleeved inside the first limiting groove 25, and the clamping block 13 on the side of the connecting block 11 is fitted inside the clamping groove 22, making the second inclined surface 14 in contact with the first inclined surface 23. At this time, the sealing ring 15 is inside the sealing groove 26, the second limiting groove 17 is sleeved on the outer surface of the limiting block 32 on the other side of the support ring 31, and the threaded hole inside the limiting block 32 is aligned with the threaded holes of the fixed flange 24 and the connecting flange 16. Subsequently, the fixing bolt 4 is passed through the fixed flange 24, the limiting block 32 and the connecting flange 16 and tightened for fixation;

[0028] When the sewage passes through the inside of the fixed pipe 21 and reaches the flow-through groove 12, since the diameter inside the flow-through groove 12 is larger than the inner wall diameter of the fixed pipe 21, when the sewage flows into the inside of the flow-through groove 12, the flow velocity will slow down, thereby reducing the water pressure of the water flow and reducing the water pressure on the pipe connection. When the sewage leaks, the sewage will flow out between the connecting block 11 and the fixed pipe 21, and thus contact the expansion rubber water stop ring 33, causing the expansion rubber water stop ring 33 to expand and its volume to increase. Furthermore, it will fit between the fixed flange 24 and the connecting flange 16 to form a secondary seal, enhancing the sealing strength and preventing sewage leakage at the pipe connection.

[0029] Finally, several points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and defined, the terms "installation", "connection", and "linkage" should be understood in a broad sense. It can be a mechanical connection or an electrical connection, or it can be the communication inside two components. It can be directly connected. The terms "up", "down", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change;

[0030] Second: In the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0031] Finally: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A PE pipe waterproof sealing structure for sewage treatment, comprising a connection assembly (1), characterized in that, Both ends of the connection component (1) are detachably installed with PE pipe bodies (2). Leak prevention components (3) are provided between both ends of the connection component (1) and the PE pipe bodies (2). A plurality of fixing bolts (4) are provided between the connection component (1) and the PE pipe bodies (2). The connection component (1), the PE pipe bodies (2) and the leak prevention components (3) are fixedly connected by the fixing bolts (4). The connection component (1) includes a connection block (11). The inside of the connection block (11) is a flow channel (12). A connection flange (16) is fixedly connected to the outer surface of the connection block (11). Second limiting grooves (17) are opened on both sides of the connection flange (16). Clamping blocks (13) are fixedly connected to both sides of the connection block (11). Second inclined surfaces (14) are located above the clamping blocks (13) on both sides of the connection block (11). Sealing rings (15) are embedded and installed on the outer edges on both sides of the connection block (11). The PE pipe body (2) includes a fixed pipe (21). Card slots (22) are opened on both sides of the fixed pipe (21) near the inner wall. First inclined surfaces (23) are provided on both sides of the fixed pipe (21) near the outer edge. Fixed flanges (24) are fixedly sleeved on the outer surfaces of both ends of the fixed pipe (21). Sealing grooves (26) are opened on the sides of the fixed flanges (24). First limiting grooves (25) are opened on the edge along the side of the fixed flange (24) near the sealing groove (26).

2. The waterproof sealing structure of the PE pipe for sewage treatment according to claim 1, characterized in that, The diameter of the middle part of the flow channel (12) is larger than that of both ends. The diameters of both ends of the flow channel (12) are the same as the diameter of the inner wall of the fixed pipe (21).

3. The waterproof sealing structure of the PE pipe for sewage treatment according to claim 1, characterized in that The clamping blocks (13) are embedded and installed inside the card slots (22), and the second inclined surfaces (14) are attached to the first inclined surfaces (23). The sealing rings (15) are embedded and installed inside the sealing grooves (26). The size and position of the second limiting grooves (17) respectively correspond to the sealing rings (15). A placement groove is formed between the connection flange (16) and the fixed flange (24).

4. The waterproof sealing structure of the PE pipe for sewage treatment according to claim 3, characterized in that The leak prevention component (3) includes a support ring (31). Limiting blocks (32) are fixedly connected to both sides of the support ring (31). An expansion rubber water stop ring (33) is embedded and installed at the bottom of the support ring (31). The support ring (31) is embedded and installed inside the placement groove between the fixed flange (24) and the connection flange (16). The limiting blocks (32) at both ends of the support ring (31) are respectively embedded and installed inside the first limiting groove (25) and the second limiting groove (17). The expansion rubber water stop ring (33) is attached to the outer surface of the connection block (11).

5. The waterproof sealing structure of the PE pipe for sewage treatment according to claim 4, characterized in that, Threaded holes are opened at positions corresponding to the fixed flange (24), the connection flange (16) and the limiting blocks (32). The limiting blocks (32) on both sides of the connection flange (16) and the fixed flange (24) are fixedly connected by the fixing bolts (4).

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