PVC threading pipe with compression resistance

Abstract

The utility model relates to a PVC (polyvinyl chloride) threading pipe with compression resistance, which belongs to the technical field of PVC threading pipes and comprises an inner pipe, connecting rings are fixed on the front side and the rear side of the outer surface of the inner pipe, a plurality of compression resistance mechanisms are arranged on the outer surface of the inner pipe, an outer pipe is arranged on the compression resistance mechanisms, and a protection mechanism is arranged on the upper surface of the outer pipe. According to the PVC threading pipe with the compression resistance, through the compression resistance mechanism, after an outer pipe is extruded by external force, the outer pipe moves towards an inner pipe and drives a second fixing block to move together, the second fixing block is driven by the outer pipe to move, the second fixing block drives a moving plate to slide in a box body through a connecting rod, and a spring and a telescopic rod are extruded by the moving plate; and after the appearance is extruded, the movable plate can reset under the elastic action of the spring, the movable plate drives the second fixing block to reset through the connecting rod, the outer pipe is reset through the second fixing block, the compression resistance of the outer pipe is improved, and meanwhile the inner pipe is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of PVC threading pipes, and specifically relates to a PVC threading pipe with compressive resistance performance. Background Technique

[0002] The main component of PVC is polyvinyl chloride, and it is a material added with other components to enhance its heat resistance, toughness, and ductility. The top layer of this surface film is paint, the main component in the middle is polyvinyl chloride, and the bottom layer is back-coated adhesive. Among them, PVC pipes have been well received by the engineering community due to their light self-weight, corrosion resistance, high compressive strength, safety and convenience, etc.

[0003] For example, a PVC threading pipe with high compressive resistance disclosed in a Chinese patent (Publication No.: CN214535132U) relates to the technical field of drainage. The utility model includes a pipe, a compressive resistance mechanism, and a sealing mechanism. An outer pipe and an inner pipe are respectively arranged inside and outside the pipe. A compressive resistance mechanism is fixedly clamped between the outer pipe and the inner pipe. One end of the pipe is movably connected with a sealing mechanism. A first connection ring is fixedly clamped at one end of the outer cylindrical surface of the outer pipe, and a second connection ring is fixedly clamped at one end of the outer cylindrical surface of the outer pipe and far away from the first connection ring. Through the compressive resistance ring located between the outer pipe and the inner pipe, it is used to bear the pressure from the outside of the outer pipe, thereby protecting the inner pipe, and solving the problem that the compressive resistance of the PVC pipe is not ideal enough. By the cooperation connection of the first connection ring and the second connection ring located in different pipes, and screwing a screw inside the installation hole to fix two adjacent pipes, it solves the problem that the existing connection method is relatively laborious and time-consuming, and cannot be disassembled after installation.

[0004] The above-mentioned PVC threading pipe with high compressive resistance still has certain deficiencies. Through the compressive resistance ring located between the outer pipe and the inner pipe, and the compressive resistance ring is made of a relatively firm material and is not easy to deform, it is used to bear the pressure from the outside of the outer pipe, thereby protecting the inner pipe. Due to the function of the universal ball, the first fixing column and the sliding rod can be bent, which is convenient for changing the bending degree of the pipe. However, there is a lack of a compressive resistance component between the outer pipe and the inner pipe. During the extrusion of the outer pipe, the outer pipe will extrude the inner pipe after deformation, affecting the use of the PVC threading pipe. Therefore, a PVC threading pipe with compressive resistance performance is proposed to solve the above problems. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a PVC threading pipe with compressive resistance performance, which has the advantages of good compressive resistance effect, etc., and solves the problem of poor compressive resistance effect of the existing PVC threading pipe with compressive resistance performance.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A PVC wire threading pipe with compressive resistance, including an inner pipe, connection rings are fixed on both the front and rear sides of the outer surface of the inner pipe, a plurality of compressive mechanisms are provided on the outer surface of the inner pipe, an outer pipe is provided on the compressive mechanism, and a protection mechanism is provided on the upper surface of the outer pipe;

[0007] The compressive mechanism includes a plurality of first fixing blocks fixed on the outer surface of the inner pipe, a box body is fixed on the side of the first fixing block away from the inner pipe, a plurality of telescopic rods are fixed on the side of the inner cavity of the box body close to the first fixing block, a spring is sleeved on the outer surface of the telescopic rod, a moving plate is fixed on the side of the plurality of telescopic rods away from the first fixing block, a plurality of connecting rods are fixed on the side of the moving plate away from the first fixing block, and a second fixing block is fixed on the side of the plurality of connecting rods away from the first fixing block.

[0008] Further, the outer pipe is fixed on the side of the plurality of second fixing blocks away from the first fixing block.

[0009] Further, the side of the spring close to the first fixing block is fixed on the side of the inner cavity of the box body close to the first fixing block.

[0010] Further, the side of the spring away from the first fixing block is fixed on the side of the moving plate close to the first fixing block.

[0011] Further, a plurality of sliding holes are opened on the side of the box body away from the first fixing block, and the connecting rod is slidably connected inside the sliding hole.

[0012] Further, the protection mechanism includes a moisture-proof layer fixed on the outer surface of the outer pipe, a compressive layer is fixed on the outer surface of the moisture-proof layer, a weather-resistant layer is fixed on the outer surface of the compressive layer, and a protective layer is fixed on the outer surface of the weather-resistant layer.

[0013] Further, the moisture-proof layer is polyurethane, and the compressive layer is PP.

[0014] Further, the weather-resistant layer is epoxy resin, and the protective layer is polyarylate.

[0015] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0016] 1. For the PVC wire threading pipe with compressive resistance, through the compressive mechanism, when the outer pipe is squeezed, the outer pipe moves towards the inner pipe, the outer pipe drives the second fixing block, the connecting rod and the moving plate to move and squeeze the spring. After the squeezing ends, the moving plate resets, the moving plate drives the second fixing block to reset through the connecting rod, and the outer pipe is reset through the second fixing block, improving the compressive performance, preventing the inner pipe from being damaged when the outer pipe is squeezed, and improving the service life.

[0017] 2. The PVC wire threading pipe with compressive resistance, the protection mechanism, which is composed of a moisture-proof layer, a compressive layer, a weather-resistant layer and a protective layer. The moisture-proof layer is made of polyurethane, the compressive layer is made of PP, the weather-resistant layer is made of epoxy resin, and the protective layer is made of polyarylate, which improves the moisture-proof performance, compressive performance, weather-resistant performance and protection performance of the outer pipe, is beneficial to the protection of the inner pipe by the outer pipe, and prevents the inner pipe from being damaged. Brief Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of the present invention;

[0019] Figure 2 It is a schematic structural diagram of the inner pipe, outer pipe and compressive mechanism of the present invention;

[0020] Figure 3 For the present invention Figure 2 It is an enlarged schematic structural diagram at A in the present invention;

[0021] Figure 4 It is a schematic structural diagram of the protection mechanism of the present invention.

[0022] In the figure: 1 inner pipe, 2 connecting ring, 3 outer pipe, 4 compressive mechanism, 401 first fixing block, 402 box body, 403 telescopic rod, 404 spring, 405 moving plate, 406 connecting rod, 407 second fixing block, 5 protection mechanism, 501 moisture-proof layer, 502 compressive layer, 503 weather-resistant layer, 504 protective layer. Detailed Description of the Preferred Embodiment

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figure 1-2 , in a kind of PVC wire threading pipe with compressive resistance in this embodiment, which includes an inner pipe 1. Connecting rings 2 are fixed on both the front and rear sides of the outer surface of the inner pipe 1, which is convenient for fixing with other inner pipes 1 through bolts. A plurality of compressive mechanisms 4 are arranged on the outer surface of the inner pipe 1, and an outer pipe 3 is arranged on the compressive mechanism 4. The outer pipe 3 protects the inner pipe 1 through the compressive mechanism 4, improves the protection performance of the inner pipe 1, and a protection mechanism 5 is arranged on the upper surface of the outer pipe 3, which improves the compressive resistance of the outer pipe 3 and is beneficial to the protection of the inner pipe 1.

[0025] It should be noted that the inner pipe 1 is a PVC wire threading pipe in the prior art, and its working principle will not be described in detail herein.

[0026] Please refer toFigure 3 , in order to improve the compressive performance of the inner tube 1, the compressive mechanism 4 in this embodiment includes a plurality of first fixing blocks 401 fixed on the outer surface of the inner tube 1. A box body 402 is fixed on the side of the first fixing block 401 away from the inner tube 1. A plurality of telescopic rods 403 are fixed on the side of the inner cavity of the box body 402 close to the first fixing block 401. A spring 404 is sleeved on the outer surface of the telescopic rod 403. The spring 404 is made to perform a linear compression movement through the telescopic rod 403. A moving plate 405 is fixed on the side of the plurality of telescopic rods 403 away from the first fixing block 401. The moving plate 405 is made to perform a linear movement through the telescopic rod 403. A plurality of connecting rods 406 are fixed on the side of the moving plate 405 away from the first fixing block 401. A second fixing block 407 is fixed on the side of the plurality of connecting rods 406 away from the first fixing block 401.

[0027] Among them, the outer tube 3 is fixed on the side of the plurality of second fixing blocks 407 away from the first fixing block 401. After the outer tube 3 is extruded, a buffer is provided for the outer tube 3 through the compressive mechanism 4 to prevent the outer tube 3 from deforming. At the same time, the outer tube 3 can be reset, improving the compressive effect and preventing the outer tube 3 from being damaged.

[0028] In addition, one side of the spring 404 close to the first fixing block 401 is fixed on the side of the inner cavity of the box body 402 close to the first fixing block 401, and one side of the spring 404 away from the first fixing block 401 is fixed on the side of the moving plate 405 close to the first fixing block 401. A buffer shock absorption is provided for the outer tube 3 through the spring 404, improving the compressive effect of the outer tube 3.

[0029] Furthermore, a plurality of sliding holes are opened on the side of the box body 402 away from the first fixing block 401. The connecting rod 406 is slidably connected inside the sliding hole, facilitating the second fixing block 407 to drive the moving plate 405 to squeeze the spring 404 through the connecting rod 406.

[0030] It should be noted that the telescopic rod 403 includes a rod sleeve fixed on the side of the inner cavity of the box body 402 close to the first fixing block 401, a sliding rod slidably connected inside the rod sleeve, a slider fixed on the back of the sliding rod, a sliding groove opened on the back of the inner cavity of the rod sleeve, the slider is slidably connected inside the sliding groove, and one side of the sliding rod away from the first fixing block 401 is fixed on the side of the second fixing block 407 close to the first fixing block 401. The moving plate 405 is made to perform a linear movement through the telescopic rod 403.

[0031] For the compressive mechanism 4 in this embodiment, when the outer tube 3 is extruded, the outer tube 3 moves towards the inner tube 1. The outer tube 3 drives the second fixing block 407, the connecting rod 406 and the moving plate 405 to move and squeeze the spring 404. When the extrusion ends, the moving plate 405 resets, and the moving plate 405 drives the second fixing block 407 to reset through the connecting rod 406. The outer tube 3 is reset through the second fixing block 407, improving the compressive performance.

[0032] Please refer toFigure 4 , in order to improve the protection effect, the protection mechanism 5 in this embodiment includes a moisture-proof layer 501 fixed on the outer surface of the outer tube 3, a compression-resistant layer 502 fixed on the outer surface of the moisture-proof layer 501, a weather-resistant layer 503 fixed on the outer surface of the compression-resistant layer 502, and a protective layer 504 fixed on the outer surface of the weather-resistant layer 503.

[0033] Among them, the moisture-proof layer 501 is polyurethane, which has good heat insulation, sound insulation, earthquake resistance, and gas poisoning prevention properties, so it is used as packaging, sound insulation, and filtering materials. Rigid polyurethane plastics are light in weight, have excellent sound insulation and heat insulation properties, are resistant to chemical substances, have good electrical properties, are easy to process, and have low water absorption. The compression-resistant layer 502 is PP, with excellent mechanical properties, including tensile strength, compressive strength, and hardness, outstanding rigidity and flexural fatigue resistance. The weather-resistant layer 503 is epoxy resin, with excellent chemical resistance, especially alkali resistance, and strong film adhesion, especially to metals, and has good heat resistance and electrical insulation. The protective layer 504 is polyarylate, with good creep resistance, toughness, strain recovery, wear resistance, and high surface hardness.

[0034] The protection mechanism 5 in this embodiment is composed of a moisture-proof layer 501, a compression-resistant layer 502, a weather-resistant layer 503, and a protective layer 504, which improves the moisture-proof performance, compression-resistant performance, weather-resistant performance, and protection performance of the outer tube 3, is beneficial to the protection of the inner tube 1 by the outer tube 3, and prevents the inner tube 1 from being damaged.

[0035] The working principle of the above embodiment is as follows:

[0036] (1) When the outer tube 3 is squeezed, the outer tube 3 moves towards the inner tube 1, drives the second fixing block 407 to move through the outer tube 3, and the second fixing block 407 drives the moving plate 405 to slide in the box body 402 and squeeze the spring 404 and the telescopic rod 403 through the connecting rod 406. After the squeezing ends, the moving plate 405 will reset under the action of the spring 404, and the moving plate 405 drives the second fixing block 407 to reset through the connecting rod 406, and the outer tube 3 is reset through the second fixing block 407, improving the compression-resistant performance.

[0037] (2) The protection mechanism 5 is composed of a moisture-proof layer 501, a compression-resistant layer 502, a weather-resistant layer 503, and a protective layer 504. The moisture-proof layer 501 is polyurethane, which is light in weight, has excellent sound insulation and heat insulation properties, is resistant to chemical substances, and has low water absorption. The compression-resistant layer 502 is PP, with excellent mechanical properties, including tensile strength, compressive strength, and hardness. The weather-resistant layer 503 is epoxy resin, with excellent chemical resistance and good heat resistance and electrical insulation. The protective layer 504 is polyarylate, with good creep resistance, toughness, strain recovery, wear resistance, and high surface hardness, improving the moisture-proof performance, compression-resistant performance, weather-resistant performance, and protection performance of the outer tube 3, being beneficial to the protection of the inner tube 1 by the outer tube 3, and preventing the inner tube 1 from being damaged.

[0038] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0039] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PVC threading pipe with compression resistance, comprising an inner pipe (1), characterized in that: Connecting rings (2) are fixed on both the front and rear sides of the outer surface of the inner tube (1); a plurality of pressure-resistant mechanisms (4) are provided on the outer surface of the inner tube (1); an outer tube (3) is provided on the pressure-resistant mechanism (4); and a protective mechanism (5) is provided on the upper surface of the outer tube (3); The pressure-resistant mechanism (4) comprises a plurality of first fixed blocks (401) fixed to the outer surface of the inner tube (1); a box body (402) is fixed to the side of the first fixed block (401) away from the inner tube (1); a plurality of telescopic rods (403) are fixed to the inner cavity of the box body (402) on the side close to the first fixed block (401); a spring (404) is sleeved on the outer surface of the telescopic rod (403); a movable plate (405) is fixed to the side of the plurality of telescopic rods (403) away from the first fixed block (401); a plurality of connecting rods (406) are fixed to the side of the movable plate (405) away from the first fixed block (401); and a second fixed block (407) is fixed to the side of the plurality of connecting rods (406) away from the first fixed block (401).

2. The PVC threading pipe with compression resistance according to claim 1, characterized in that: The outer tube (3) is fixed to a side of the plurality of second fixing blocks (407) away from the first fixing block (401).

3. The PVC threading pipe with compression resistance according to claim 1, characterized in that: The side of the spring (404) close to the first fixing block (401) is fixed to the side of the inner cavity of the box body (402) close to the first fixing block (401).

4. The PVC threading pipe with compression resistance according to claim 1, characterized in that: The side of the spring (404) away from the first fixed block (401) is fixed to the side of the movable plate (405) close to the first fixed block (401).

5. The PVC threading pipe with compression resistance according to claim 1, characterized in that: A plurality of sliding holes are provided on a side of the box body (402) away from the first fixing block (401), and the connecting rod (406) is slidably connected to the inside of the sliding holes.

6. The PVC threading pipe with compression resistance according to claim 1, characterized in that: The protective mechanism (5) comprises a moisture-proof layer (501) fixed to the outer surface of the outer tube (3), a pressure-resistant layer (502) fixed to the outer surface of the moisture-proof layer (501), a weather-resistant layer (503) fixed to the outer surface of the pressure-resistant layer (502), and a protective layer (504) fixed to the outer surface of the weather-resistant layer (503).

7. The PVC threading pipe with compression resistance according to claim 6, characterized in that: The moisture-proof layer (501) is polyurethane, and the pressure-resistant layer (502) is PP.

8. The PVC threading pipe with compression resistance according to claim 6, characterized in that: The weather-resistant layer (503) is epoxy resin, and the protective layer (504) is polyarylate.

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