Compression-resistant drainage pipeline

Abstract

The utility model relates to the technical field of pipelines, in particular to a pressure-resistant drainage pipeline which comprises two inner pipes, the two inner pipes are in butt joint in a hot melting mode, the outer side of the butt joint position of the two inner pipes is movably sleeved with an outer pipe, protruding strips are arranged on the outer walls of the inner pipes in an annular array mode, and the protruding strips are arranged on the outer walls of the inner pipes. A through type inserting groove is formed in the protruding strip, and a limiting rod is movably inserted in the inserting groove. Grooves are formed in the inner side of the outer pipe in an annular array mode, the section size of the protruding strips on the outer side of the inner pipe is matched with the size of the grooves, and the outer pipe and the inner pipe can be tightly matched through matching of the grooves and the protruding strips. According to the utility model, higher compression resistance is provided at the joint of the adjacent pipelines, and the risk of pipeline dislocation or disjunction caused by external force is reduced, so that the reliability and durability of a pipeline system are improved, and the problem that the compression resistance at the joint of the adjacent pipelines cannot be improved in the scheme in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipelines, in particular to a pressure-resistant drainage pipeline. Background Art

[0002] Traditional drainage pipes are not designed with specialized pressure-resistant buffer structures. Therefore, if they encounter large external impacts or pressure during transportation and use, the pipes are easily damaged or suffer internal damage. Such damage will reduce the durability of the pipes and shorten their service life.

[0003] After extensive searching, the publication number CN216896170U disclosed a pressure-resistant and durable drainage pipe, which utilizes the sliding of a sliding rod and the expansion and contraction of a buffer spring for buffering, and transmits the extrusion force to the lower sliding seat through a buffer spring, thereby improving the drainage pipe's pressure resistance, avoiding damage caused by extrusion, and increasing the durability of the drainage pipe.

[0004] The existing technical solutions can enhance the pressure resistance of the pipeline when in use. However, after the pipelines are butt-jointed and installed, the pressure resistance of the pipe joints is not enhanced, and there is still a risk of bending or breaking under pressure. Utility Model Content

[0005] The purpose of the utility model is to provide a pressure-resistant drainage pipe, which has the advantage of improving the pressure resistance of the connection between adjacent pipes, and solves the problem that the existing technology cannot increase the pressure resistance of the connection between adjacent pipes.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a pressure-resistant drainage pipe, comprising an inner pipe, wherein the inner pipes are two in number, the two inner pipes are heat-melted butt-jointed, an outer pipe is movably sheathed on the outer side of the butt joint of the two inner pipes, the outer wall of the inner pipe is provided with convex strips in an annular array, a through-type plug-in groove is provided in the convex strip, and a limit rod is movably inserted in the plug-in groove;

[0007] The inner side of the outer tube is provided with grooves in an annular array, and the cross-sectional dimensions of the convex strips on the outer side of the inner tube match the dimensions of the grooves.

[0008] Preferably, the inner tube and outer tube materials match and are both designed with PE material. The outer wall of the inner tube does not contact the inner wall of the outer tube, and the inner tube and the ridges are extruded together using one-piece molding technology. In the design, both the inner tube and the outer tube are designed with the same polyethylene material. This choice of material not only ensures the consistency of the material, but also helps to improve the overall stability and durability of the pipeline. The outer wall of the inner tube and the inner wall of the outer tube are designed not to directly contact each other. This non-contact design reduces the friction between the inner tube and the outer tube, and extends the service life of the pipeline. In addition, the inner tube and the ridges are extruded together using advanced one-piece molding technology. This process not only improves production efficiency, but also ensures a close connection between the ridges and the inner tube, thereby enhancing the structural strength of the pipeline.

[0009] Preferably, the length of the rib matches the length of the inner tube, and limiting grooves are provided at both the front and rear ends of the rib. The side of the rib facing away from the inner tube adopts an arcuate structural design. In this design, the length of the rib precisely matches the length of the inner tube, ensuring the continuity and consistency of the pipe connection. Limiting grooves are provided at both the front and rear ends of the rib. This design allows the ribs to maintain a high degree of fit at the joint when they are docked via limiting rods, thereby improving the pipe's compressive performance. In addition, the side of the rib facing away from the inner tube adopts an arcuate structural design. This arc design helps to disperse pressure and reduce local stress concentration, thereby improving the pipe's compressive and deformation resistance.

[0010] Preferably, the limiting rod comprises a splice rod, a limiting ring fixedly mounted in the middle of the splice rod, and the ends of the splice rod are movably inserted into the splice slots on opposite sides of the adjacent inner tubes. The limiting rod in this design is composed of a splice rod, and its unique feature is that the limiting ring is fixedly mounted in the middle of the splice rod. This structural design allows the ends of the limiting rod to be flexibly inserted into the splice slots of the adjacent inner tubes, thereby achieving stable fixation of the pipe connection. The use of the limiting ring increases the stability of the pipe connection and reduces the risk of pipe misalignment or disconnection due to external forces.

[0011] Preferably, the two sides of the limiting ring are movably inserted into the limiting grooves on the opposite sides of the adjacent inner tubes, the thickness of the limiting ring is twice the depth of the limiting groove, and the outer diameter of the limiting ring matches the inner diameter of the limiting groove. In the design, the limiting ring can be movably inserted into the limiting grooves of the adjacent inner tubes on both sides. The thickness of the limiting ring is twice the depth of the limiting groove. This design ensures a tight fit between the limiting ring and the limiting groove, improving the sealing and pressure resistance of the pipeline connection. At the same time, the outer diameter of the limiting ring matches the inner diameter of the limiting groove. This precise size matching further enhances the stability and reliability of the pipeline connection.

[0012] Preferably, the outer tube is slidably mounted on the inner tube via a groove, and the length of the outer tube matches the length of the inner tube. In the design, the outer tube is slidably mounted on the inner tube via a groove, which allows the outer tube to move within a certain range, so that after adjacent inner tubes are docked, the outer tube can be moved to protect the docking point of the adjacent inner tubes.

[0013] Preferably, the outer tube wall thickness at the groove matches the wall thickness elsewhere on the outer tube, and the inner curvature of the groove matches the outer curvature of the ridge. This uniform wall thickness design helps maintain uniform strength and stability throughout the tube. The inner curvature of the groove matches the outer curvature of the ridge, ensuring a smooth transition at the tube joint.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] In the utility model, the two inner tubes are connected by hot-melt butt welding. This connection method can form a very strong connection point because it melts and fuses the plastic material together through heat and pressure, and forms an integrated connection after cooling. The strength of this connection method is usually higher than the strength of the pipe itself. The ribs on the outer wall of the inner tube are arranged in a ring array. The inner tube and the ribs are extruded together using an integral molding technology. This process not only improves production efficiency, but also ensures a close connection between the ribs and the inner tube, thereby enhancing the structural strength of the pipe. A through-type plug-in groove is provided in the rib. This design allows the ribs to provide additional support and connection points between the inner pipes, increasing the structural strength of the pipe joints. A limit rod is movably installed in the through-type splice groove. The limit rod can move in the splice groove, but at the same time, due to the presence of the limit ring, it can limit excessive movement, thereby providing stable support at the pipe joints. The groove on the inside of the outer pipe matches the size of the ribs on the outside of the inner pipe. This design allows the outer pipe to be movably fitted onto the inner pipe, and through the matching of the grooves and the ribs, a tight fit can be formed between the outer and inner pipes, further enhancing the stability and pressure resistance of the connection. Through the above design, this pressure-resistant drainage pipe provides higher pressure resistance at the connection between adjacent pipes, reduces the risk of pipe dislocation or disconnection due to external forces, and thus improves the reliability and durability of the pipe system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 3 For the utility model Figure 2 Schematic diagram of the structure at the middle enlargement;

[0019] Figure 4 This is a schematic diagram of the outer tube structure of the utility model;

[0020] Figure 5 This is a schematic diagram of the inner tube structure of the utility model;

[0021] Figure 6 This is a schematic diagram of the limit rod structure of the utility model.

[0022] In the figure: 1, inner tube; 11, convex strip; 111, plug-in groove; 112, limit groove; 2, outer tube; 21, groove; 3, limit rod; 31, plug-in rod; 311, limit ring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example 1

[0025] like Figures 1 to 6 As shown, an embodiment of the present invention provides: a pressure-resistant drainage pipe, comprising an inner pipe 1, the number of the inner pipes 1 being two, the two inner pipes 1 being heat-melted butt-jointed, the outer side of the butt joint of the two inner pipes 1 being movably sleeved with an outer pipe 2, the outer wall of the inner pipe 1 being provided with convex strips 11 in an annular array, a through-type plug-in groove 111 being opened in the convex strips 111, and a limit rod 3 being movably inserted in the plug-in groove 111;

[0026] The inner side of the outer tube 2 is provided with grooves 21 in an annular array, and the cross-sectional dimensions of the ridges 11 on the outer side of the inner tube 1 match the dimensions of the grooves 21 .

[0027] Specifically, the two inner tubes 1 are connected by hot-melt butt welding. This connection method can form a very strong connection point because it melts and fuses the plastic material together through heat and pressure, and forms an integrated connection after cooling. The strength of this connection method is usually higher than the strength of the pipe itself. The ridges 11 on the outer wall of the inner tube 1 are arranged in a ring array. The inner tube 1 and the ridges 11 are extruded together using one-piece molding technology. This process not only improves production efficiency, but also ensures a close connection between the ridges 11 and the inner tube 1, thereby enhancing the structural strength of the pipe. A through-type plug-in groove 111 is provided in the ridge 11. This design allows the ridges 11 to provide additional support and connection points between the inner tubes 1, increasing the structural strength of the pipe connection. A limit rod 3 is movably inserted in the through-type plug-in groove 111. The limit rod 3 can move in the plug-in groove 111, but at the same time, due to the presence of the limit ring 311, it can limit excessive movement, thereby providing stable support at the pipe connection. The groove 21 on the inner side of the outer tube 2 matches the size of the ridge 11 on the outer side of the inner tube 1. This design allows the outer tube 2 to be movably fitted on the inner tube 1, and through the matching of the groove 21 and the ridge 11, a tight fit can be formed between the outer tube 2 and the inner tube 1, further enhancing the stability and pressure resistance of the connection. Through the above design, this pressure-resistant drainage pipe provides higher pressure resistance at the connection between adjacent pipes, reduces the risk of pipe dislocation or disconnection due to external forces, thereby improving the reliability and durability of the pipe system.

[0028] Example 2

[0029] In order to improve the stability of the connection structure at the adjacent inner tube joints, such as Figure 2 、 Figure 3 and Figure 6 As shown, in this embodiment, the materials of the inner tube 1 and the outer tube 2 match and are both designed with PE material. The outer wall of the inner tube 1 does not contact the inner wall of the outer tube 2, and the inner tube 1 and the ridge 11 are extruded together using one-piece molding technology. In the design, the inner tube 1 and the outer tube 2 are both designed with the same polyethylene material. This choice of material not only ensures the consistency of the material, but also helps to improve the overall stability and durability of the pipeline. The outer wall of the inner tube 1 and the inner wall of the outer tube 2 are designed not to directly contact each other. This non-contact design reduces the friction between the inner tube 1 and the outer tube 2, and extends the service life of the pipeline. In addition, the inner tube 1 and the ridge 11 are extruded together using advanced one-piece molding technology. This process not only improves production efficiency, but also ensures a close connection between the ridge 11 and the inner tube 1, thereby enhancing the structural strength of the pipeline.

[0030] Furthermore, the length of the ridge 11 matches the length of the inner tube 1, and limiting grooves 112 are provided at both the front and rear ends of the ridge 11. The side of the ridge 11 facing away from the inner tube 1 adopts an arc-shaped structural design. In this design, the length of the ridge 11 precisely matches the length of the inner tube 1, ensuring the continuity and consistency of the pipe connection. Limiting grooves 112 are provided at both the front and rear ends of the ridge 11. This design allows the ridge 11 to maintain a high degree of fit at the joint when it is docked via the limiting rod 3, thereby improving the pipe's compressive performance. In addition, the side of the ridge 11 facing away from the inner tube 1 adopts an arc-shaped structural design. This arc design helps to disperse pressure and reduce local stress concentration, thereby improving the pipe's compressive and deformation resistance.

[0031] Furthermore, the limiting rod 3 includes a plug-in rod 31, a limiting ring 311 is fixedly installed in the middle section of the plug-in rod 31, and the two ends of the plug-in rod 31 are movably inserted into the plug-in groove 111 on the opposite side of the adjacent inner tube 1. The limiting rod 3 in the design is composed of the plug-in rod 31, and its unique feature is that the limiting ring 311 is fixedly installed in the middle section of the plug-in rod 31. This structural design allows the two ends of the limiting rod 3 to be flexibly inserted into the plug-in groove 111 of the adjacent inner tube 1, thereby achieving stable fixation of the pipe connection. The use of the limiting ring 311 increases the stability of the pipe connection and reduces the risk of pipe misalignment or disconnection due to external forces.

[0032] Furthermore, the two sides of the limiting ring 311 are movably inserted into the limiting groove 112 on the opposite side of the adjacent inner tube 1. The thickness of the limiting ring 311 is twice the depth of the limiting groove 112, and the outer diameter of the limiting ring 311 matches the inner diameter of the limiting groove 112. In the design, the limiting ring 311 can be movably inserted into the limiting groove 112 of the adjacent inner tube 1 on both sides. The thickness of the limiting ring 311 is twice the depth of the limiting groove 112. This design ensures a tight fit between the limiting ring 311 and the limiting groove 112, improving the sealing and pressure resistance of the pipeline connection. At the same time, the outer diameter of the limiting ring 311 matches the inner diameter of the limiting groove 112. This precise size matching further enhances the stability and reliability of the pipeline connection.

[0033] Example 3

[0034] In order to protect the adjacent inner pipe joints, such as Figure 1 、 Figure 2 、 Figure 4 and Figure 5 As shown, in this embodiment, the outer tube 2 is slidably mounted on the inner tube 1 via the groove 21, and the length of the outer tube 2 matches the length of the inner tube 1. In the design, the outer tube 2 is slidably mounted on the inner tube 1 via the groove 21. This design allows the outer tube 2 to move within a certain range, so that after adjacent inner tubes 1 are connected, the outer tube 2 can be moved to protect the connection between the adjacent inner tubes 1.

[0035] Furthermore, the wall thickness of the outer tube 2 at the groove 21 matches the wall thickness at other locations on the outer tube 2, and the inner curvature of the groove 21 matches the outer curvature of the ridge 11. The wall thickness of the outer tube 2 at the groove 21 matches the wall thickness at other locations in the design. This uniform wall thickness helps maintain uniform strength and stability of the pipe. The inner curvature of the groove 21 matches the outer curvature of the ridge 11, ensuring a smooth transition at the pipe joint.

[0036] When using the present invention, align the adjacent ends of the two inner tubes 1, use a hot melt butt welding machine, and heat the butt ends of the inner tubes 1 according to the manufacturer's instructions and the hot melt parameters of the material. After heating to an appropriate temperature, quickly insert one end of the two limit rods 3 into the insertion groove 111 in the convex strip 11 on an inner tube 1, and make one side of the limit ring 311 of the limit rod 3 movably inserted into the limit groove 112 in the convex strip 11 on an inner tube 1. At this time, quickly press the butt ends of the two inner tubes 1 together to form a firm connection, and increase the pressure resistance of the adjacent inner tube 1 butt joints by the limit rod 3, slide the outer tube 2 along the inner tube 1, adjust the position of the outer tube 2 on the outside of the inner tube 1, and protect the connection of the adjacent inner tube 1 by the outer tube 2, ensuring that the inner curvature of the groove 21 matches the outer curvature of the convex strip 11. If necessary, perform a pressure test to verify the pressure bearing capacity and sealing of the pipeline, put the pipeline into use, and monitor its performance regularly to ensure the normal operation of the drainage system.

[0037] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A pressure-resistant drainage pipe, comprising an inner pipe (1), wherein the inner pipes (1) are two in number, the two inner pipes (1) are butt-jointed by heat fusion, and an outer pipe (2) is movably sheathed on the outer sides of the butt joint of the two inner pipes (1), characterized in that: The outer wall of the inner tube (1) is provided with convex strips (11) in an annular array, a through-type plug-in groove (111) is provided in the convex strips (111), and a limit rod (3) is movably inserted in the plug-in groove (111); The inner side of the outer tube (2) is provided with grooves (21) in an annular array, and the cross-sectional dimensions of the ridges (11) on the outer side of the inner tube (1) match the dimensions of the grooves (21).

2. A pressure-resistant drainage pipe according to claim 1, characterized in that: The inner tube (1) and the outer tube (2) are made of matching materials and are both designed with PE material. The outer wall of the inner tube (1) does not contact the inner wall of the outer tube (2). The inner tube (1) and the convex strip (11) are extruded together using an integral molding technology.

3. A pressure-resistant drainage pipe according to claim 1, characterized in that: The length of the convex strip (11) matches the length of the inner tube (1), and limiting grooves (112) are provided at both the front and rear ends of the convex strip (11), and the side of the convex strip (11) facing away from the inner tube (1) adopts an arc-shaped structure design.

4. A pressure-resistant drainage pipe according to claim 1, characterized in that: The limiting rod (3) comprises a plug-in rod (31), a limiting ring (311) is fixedly mounted on the middle section of the plug-in rod (31), and both ends of the plug-in rod (31) are movably inserted into the plug-in grooves (111) on opposite sides of the adjacent inner tube (1).

5. A pressure-resistant drainage pipe according to claim 4, characterized in that: Both sides of the limiting ring (311) are movably inserted into the limiting groove (112) on the opposite side of the adjacent inner tube (1), the thickness of the limiting ring (311) is twice the depth of the limiting groove (112), and the outer diameter of the limiting ring (311) matches the inner diameter of the limiting groove (112).

6. The pressure-resistant drainage pipe according to claim 1, characterized in that: The outer tube (2) is slidably mounted on the inner tube (1) via the groove (21), and the length of the outer tube (2) matches the length of the inner tube (1).

7. The pressure-resistant drainage pipe according to claim 1, characterized in that: The wall thickness of the outer tube (2) at the groove (21) matches the wall thickness at other positions of the outer tube (2), and the inner curvature of the groove (21) matches the outer curvature of the convex strip (11).

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