PVC-U drain pipe with good sealing performance

Abstract

The utility model discloses a PVC-U drain pipe with good sealing performance, which comprises a liner pipe, the surface of the liner pipe is sleeved with a sealing pipe, the surface of the liner pipe is fixedly connected with a reinforcing structure, the surface of the reinforcing structure is fixedly connected with the inner wall of the sealing pipe, the two ends of the liner pipe and the two ends of the sealing pipe are fixedly connected with rubber sealing rings, and the rubber sealing rings are fixedly connected with the rubber sealing rings. The two ends of the reinforcing structure are fixedly connected with the inner side of the rubber sealing ring. By arranging the reinforcing structure, the overall strength of the pipeline is improved, the clamping rod penetrates through the clamping groove and is reset under the pressure of the pressure spring until the pipeline is completely connected, the end-to-end clamping of the pipeline is completed, the situation that a connector is loosened after the pipeline is connected is avoided, the sealing performance of the pipeline is further enhanced, and the service life of the pipeline is prolonged. Therefore, the sealing effect on the pipeline connector is enhanced, the sealing performance of the pipeline is improved, water is prevented from seeping from the connector when the water pressure in the pipeline is large, and a user can use the pipeline conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of PVC-U drainage pipes, in particular to a PVC-U drainage pipe with good sealing performance. Background Art

[0002] PVC-U drainage pipes are made of sanitary polyvinyl chloride (PVC) resin as the main raw material, with appropriate amounts of stabilizers, lubricants, fillers, color enhancers, etc. added, and are extruded by a plastic extruder and injection molded by an injection molding machine. The production of pipes and fittings is completed through processes such as cooling, curing, shaping, inspection, and packaging.

[0003] After searching, Chinese patent application No. 201820923123.0 discloses a PVC-U drainage pipe that is easy to disassemble and assemble, including a pipe body, a fixing ring is fixedly connected to the outer pipe wall of the pipe opening at one end of the pipe body, a spring is fixedly connected to the side of the fixing ring close to the center of the pipe body, and the pipe body is penetrated by the spring, the spring is fixedly connected to the end of the spring away from the fixing ring with a spring pad slidably connected to the pipe body, a slip ring is slidably connected to the outer pipe wall of the pipe body, and the slip ring and the spring pad are slidably connected, a sleeve is fixedly connected to the side of the slip ring away from the pipe body, and a block is symmetrically fixedly connected to the inner side wall of the end of the sleeve away from the slip ring, and the outer side of the pipe body away from the fixing ring is connected to the spring pad. A connecting block is fixedly connected to the pipe wall, and the connecting block is provided with a through groove matching the clamping block. A clamping groove matching the clamping block is provided on one side of the connecting block close to the center of the pipe body. The PVC-U drainage pipe which is easy to disassemble and assemble is provided with a pipe body, a fixing ring, a spring, a spring pad, a slip ring, a sleeve, a clamping block, a connecting block, a through groove and a clamping groove. When installing the water pipe, the two water pipes are butted end to end, and the sleeve of the rear water pipe is pulled to drive the slip ring to slide on the pipe body to compress the spring, and after driving the clamping block on the sleeve to pass through the through groove of the front water pipe, the sleeve is rotated to align the clamping block with the clamping groove. At this time, the sleeve is released, and under the action of the spring, the clamping block is finally clamped in the clamping groove, so that the installation and disassembly of the water pipe become very convenient.

[0004] Although the above patent sets a pipe body, a fixing ring, a spring, a spring washer, a slip ring, a sleeve, a block, a connecting block, a through groove and a slot, when installing the water pipe, the two water pipes are connected end to end, the sleeve of the rear water pipe is pulled to drive the slip ring to slide on the pipe body to compress the spring, and the block on the sleeve is driven to pass through the through groove of the front water pipe, and then the sleeve is rotated to align the block with the slot, and then the sleeve is released. Under the action of the spring, the block is finally connected to the slot, making the installation and disassembly of the water pipe very convenient, but in actual use, the sealing degree of the pipe interface is not enough, resulting in poor sealing effect. When the water pressure inside the pipe is high, water is easy to seep out from the interface, which brings inconvenience to the user.

[0005] Therefore, it is necessary to modify it to strengthen the sealing effect of the pipeline interface, improve the sealing performance of the pipeline, avoid water seepage from the interface when the water pressure inside the pipeline is high, and facilitate the use of users. Utility Model Content

[0006] In order to solve the problems raised in the above-mentioned background technology, the purpose of the utility model is to provide a PVC-U drainage pipe with good sealing performance, which has the advantages of strengthening the sealing effect of the pipe interface, improving the sealing performance of the pipe, and preventing water from seeping out of the interface when the water pressure inside the pipe is high, which is convenient for users to use. It solves the problem that the sealing degree of the pipe interface is not enough, resulting in poor sealing effect, and water is easy to seep out of the interface when the water pressure inside the pipe is high, causing inconvenience to users.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a PVC-U drainage pipe with good sealing performance, comprising an inner tube, a sealing tube is sleeved on the surface of the inner tube, a reinforcing structure is fixedly connected to the surface of the inner tube, the surface of the reinforcing structure is fixedly connected to the inner wall of the sealing tube, both ends of the inner tube and the sealing tube are fixedly connected to rubber sealing rings, both ends of the reinforcing structure are fixedly connected to the inner side of the rubber sealing ring, and the right side of the rubber sealing ring located on the right side of the sealing tube is fixedly connected to an external threaded tube, and the left side of the rubber sealing ring located on the left side of the sealing tube is fixedly connected to an internal threaded tube used in conjunction with the external threaded tube, and a number of uniformly distributed clamping mechanisms are fixedly connected around the surface of the rubber sealing ring located on the right side of the sealing tube, a number of uniformly distributed clamping blocks are fixedly connected around the surface of the internal threaded tube, and a clamping groove used in conjunction with the clamping mechanism is opened on the surface of the clamping block.

[0008] As a preferred embodiment of the utility model, the reinforcement structure includes a reinforcement ring, the inner surface of the reinforcement ring is fixedly connected to the surface of the inner bile tube, the surface of the reinforcement ring is fixedly connected to the inner wall of the sealing tube, a number of evenly distributed through holes are opened inside the reinforcement ring, the interior of the through holes is fixedly connected with reinforcement ribs, and any two adjacent reinforcement rings are fixedly connected by the reinforcement ribs.

[0009] As a preferred embodiment of the utility model, the clamping mechanism includes a support rod, the bottom of the support rod is fixedly connected to the surface of the rubber sealing ring, the front and rear sides of the top of the support rod are hinged with clamping rods, and the opposite sides of the two clamping rods are fixedly connected with compression springs.

[0010] As a preferred embodiment of the utility model, a rubber skirt is fixedly connected to the right side of the sealing tube, and a groove for use with the rubber skirt is provided on the surface of the internal threaded tube.

[0011] As a preferred embodiment of the present invention, the inner surface of the inner tube is provided with an anti-seepage coating, and the surface of the sealing tube is provided with an anti-corrosion coating.

[0012] As a preferred embodiment of the present invention, the length of the external threaded tube is the same as that of the internal threaded tube, and the number of threads of the external threaded tube is the same as that of the internal threaded tube.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model improves the overall strength of the pipeline by arranging a reinforcing structure, avoids the situation that the pipeline is broken and leaked due to excessive water pressure inside the pipeline, and at the same time, the pipeline is connected end to end during use, and the internal threaded pipe and the external threaded pipe are meshed with each other, which is convenient for pipeline connection. When the internal threaded pipe and the external threaded pipe are connected, the right end of the internal threaded pipe contacts and squeezes the surface of the rubber sealing ring to seal the gap, and then the clamping mechanism is aligned with the clamping groove when the pipeline is connected end to end. When the clamping rod contacts the clamping groove, its left end shrinks until the pipeline is fully connected, the clamping rod passes through the clamping groove and is reset by the pressure of the compression spring, completing the clamping of the pipeline ends, so that the interface will not be loose after the pipeline connection is completed, and the sealing performance of the pipeline is further enhanced, thereby strengthening the sealing effect of the pipeline interface, improving the sealing performance of the pipeline, avoiding water seepage from the interface when the water pressure inside the pipeline is high, and facilitating the use of users.

[0015] 2. The utility model provides a reinforcing mechanism, and the reinforcing ring plays a role of longitudinal restraint and tightening on the inner tube, thereby preventing the inner tube from deforming and rupturing and causing water leakage. The transverse strength of the pipeline is improved by providing reinforcing ribs, thereby preventing the pipeline from bending and breaking. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0018] Figure 3 This is a schematic diagram of the sectional structure of the utility model from the left;

[0019] Figure 4 For this utility model Figure 1 Schematic diagram of the enlarged structure of A.

[0020] In the figure: 1. Inner tube; 2. Sealing tube; 3. Reinforcement structure; 4. Rubber sealing ring; 5. External threaded tube; 6. Internal threaded tube; 7. Clamping mechanism; 8. Clamping block; 9. Clamping groove; 10. Reinforcement ring; 11. Through hole; 12. Reinforcement rib; 13. Support rod; 14. Clamping rod; 15. Compression spring; 16. Rubber skirt; 17. Groove; 18. Anti-seepage coating; 19. Anti-corrosion coating. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figures 1 to 4 As shown, the utility model provides a PVC-U drainage pipe with good sealing performance, including an inner tube 1, a sealing tube 2 is sleeved on the surface of the inner tube 1, a reinforcing structure 3 is fixedly connected to the surface of the inner tube 1, the surface of the reinforcing structure 3 is fixedly connected to the inner wall of the sealing tube 2, both ends of the inner tube 1 and the sealing tube 2 are fixedly connected with rubber sealing rings 4, both ends of the reinforcing structure 3 are fixedly connected to the inner side of the rubber sealing ring 4, and the right side of the rubber sealing ring 4 located on the right side of the sealing tube 2 is fixedly connected with an external threaded tube 5, and the left side of the rubber sealing ring 4 located on the left side of the sealing tube 2 is fixedly connected with an internal threaded tube 6 used in conjunction with the external threaded tube 5, and the surface of the rubber sealing ring 4 located on the right side of the sealing tube 2 is fixedly connected with a number of uniformly distributed clamping mechanisms 7 around the surface, and a number of uniformly distributed clamping blocks 8 are fixedly connected to the surface of the internal threaded tube 6 around the surface, and a clamping groove 9 used in conjunction with the clamping mechanism 7 is opened on the surface of the clamping block 8.

[0023] refer to Figure 2 The reinforcement structure 3 includes a reinforcement ring 10, the inner surface of the reinforcement ring 10 is fixedly connected to the surface of the inner bile tube 1, the surface of the reinforcement ring 10 is fixedly connected to the inner wall of the sealing tube 2, a number of evenly distributed through holes 11 are opened inside the reinforcement ring 10, and reinforcement ribs 12 are fixedly connected inside the through holes 11, and adjacent reinforcement rings 10 are fixedly connected by the reinforcement ribs 12.

[0024] As a technical optimization scheme of the utility model, by setting a reinforcing mechanism, the reinforcing ring 10 plays a role of longitudinal restraint and tightening of the inner bile tube 1, thereby preventing the inner bile tube 1 from deforming and rupturing and causing water leakage. By setting reinforcing ribs 12, the transverse strength of the pipeline is improved, thereby preventing the pipeline from bending and breaking.

[0025] refer to Figure 4 The clamping mechanism 7 includes a support rod 13, the bottom of the support rod 13 is fixedly connected to the surface of the rubber sealing ring 4, the front and rear sides of the top of the support rod 13 are hinged with clamping rods 14, and the opposite sides of the two clamping rods 14 are fixedly connected with compression springs 15.

[0026] As a technical optimization solution of the utility model, by setting a clamping mechanism 7 and sending the clamping rod 14 into the clamping slot 9, the interface of the pipeline can be reinforced to prevent the pipeline interface from loosening and leaking. By setting a compression spring 15, pressure can be applied to the clamping rod 14 to open its left end, preventing the clamping rod 14 from falling off from the inside of the clamping slot 9 and affecting the reinforcement effect.

[0027] refer to Figure 1 A rubber skirt 16 is fixedly connected to the right side of the sealing tube 2, and a groove 17 for use with the rubber skirt 16 is opened on the surface of the internal threaded tube 6.

[0028] As a technical optimization solution of the utility model, by setting the rubber skirt 16 and the groove 17 for use together, when the pipes are connected end to end, the inner surface of the rubber skirt 16 fits with the inner wall of the groove 17, thereby improving the sealing effect of the pipe interface.

[0029] refer to Figure 1 The inner surface of the inner tube 1 is provided with an anti-seepage coating 18, and the surface of the sealing tube 2 is provided with an anti-corrosion coating 19.

[0030] As a technical optimization scheme of the utility model, by providing an anti-seepage coating 18, the sealing effect of the inner tube 1 is improved, and the aging of the inner tube 1 due to long-term use that affects the sealing effect is avoided. By providing an anti-corrosion coating 19, the surface of the sealing tube 2 is protected, and the sealing tube 2 is prevented from being corroded by sewage during use and damaged, affecting normal use.

[0031] refer to Figure 2 The length of the external threaded tube 5 is the same as that of the internal threaded tube 6, and the number of threads of the external threaded tube 5 is the same as that of the internal threaded tube 6.

[0032] As a technical optimization solution of the utility model, by providing an internal threaded tube 6 and an external threaded tube 5 with the same length and number of threads, the internal threaded tube 6 and the external threaded tube 5 can be connected more tightly, further improving the sealing of the pipeline interface.

[0033] The working principle and use process of the utility model are as follows: by setting a reinforcing structure 3, the overall strength of the pipeline is improved to avoid the situation that the water pressure inside the pipeline is too high and the pipeline is broken and leaked. At the same time, the pipeline is connected end to end during use, and the internal threaded tube 6 and the external threaded tube 5 are meshed with each other to facilitate pipeline connection. When the internal threaded tube 6 is connected to the external threaded tube 5, the right end of the internal threaded tube 6 contacts and squeezes the surface of the rubber sealing ring 4 to seal the gap. Then, when the pipelines are connected end to end, the clamping mechanism 7 is aligned with the clamping groove 9. When the clamping rod 14 contacts the clamping groove 9, its left end shrinks until the pipeline is completely connected. The clamping rod 14 passes through the clamping groove 9 and is reset by the pressure of the compression spring 15, completing the clamping of the ends of the pipeline, so that the interface will not be loose after the pipeline connection is completed, further strengthening the sealing performance of the pipeline, thereby strengthening the sealing effect of the pipeline interface, improving the sealing performance of the pipeline, avoiding water seepage from the interface when the water pressure inside the pipeline is high, and facilitating the use of users.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PVC-U drainage pipe with good sealing performance, comprising an inner tube (1), characterized in that: The surface of the inner tube (1) is sleeved with a sealing tube (2), the surface of the inner tube (1) is fixedly connected to a reinforcing structure (3), the surface of the reinforcing structure (3) is fixedly connected to the inner wall of the sealing tube (2), both ends of the inner tube (1) and the sealing tube (2) are fixedly connected to a rubber sealing ring (4), both ends of the reinforcing structure (3) are fixedly connected to the inner side of the rubber sealing ring (4), and the right side of the rubber sealing ring (4) located on the right side of the sealing tube (2) is fixedly connected to an external threaded tube ( 5), and the left side of the rubber sealing ring (4) located on the left side of the sealing tube (2) is fixedly connected with an internal threaded tube (6) used in conjunction with the external threaded tube (5), and the surface of the rubber sealing ring (4) located on the right side of the sealing tube (2) is fixedly connected with a plurality of uniformly distributed clamping mechanisms (7) on all sides, and the surface of the internal threaded tube (6) is fixedly connected with a plurality of uniformly distributed clamping blocks (8) on all sides, and the surface of the clamping blocks (8) is provided with a clamping groove (9) used in conjunction with the clamping mechanism (7).

2. A PVC-U drainage pipe with good sealing performance according to claim 1, characterized in that: The reinforcement structure (3) comprises a reinforcement ring (10), the inner surface of the reinforcement ring (10) is fixedly connected to the surface of the inner bile tube (1), the surface of the reinforcement ring (10) is fixedly connected to the inner wall of the sealing tube (2), a plurality of evenly distributed through holes (11) are provided inside the reinforcement ring (10), reinforcement ribs (12) are fixedly connected inside the through holes (11), and two adjacent reinforcement rings (10) are fixedly connected via the reinforcement ribs (12).

3. A PVC-U drainage pipe with good sealing performance according to claim 1, characterized in that: The clamping mechanism (7) comprises a support rod (13), the bottom of which is fixedly connected to the surface of the rubber sealing ring (4), the front and rear sides of the top of the support rod (13) are both hinged with clamping rods (14), and the opposite sides of the two clamping rods (14) are fixedly connected with compression springs (15).

4. The PVC-U drainage pipe with good sealing performance according to claim 1, characterized in that: A rubber skirt (16) is fixedly connected to the right side of the sealing tube (2), and a groove (17) for use with the rubber skirt (16) is provided on the surface of the internal threaded tube (6).

5. The PVC-U drainage pipe with good sealing performance according to claim 1, characterized in that: The inner surface of the inner tube (1) is provided with an anti-seepage coating (18), and the surface of the sealing tube (2) is provided with an anti-corrosion coating (19).

6. The PVC-U drainage pipe with good sealing performance according to claim 1, characterized in that: The length of the external threaded tube (5) is the same as that of the internal threaded tube (6), and the number of threads of the external threaded tube (5) is the same as that of the internal threaded tube (6).

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