TPU corrugated pipe

Abstract

The utility model discloses a TPU (thermoplastic polyurethane) corrugated pipe in the technical field of TPU corrugated pipes, which comprises a corrugated pipe body, the outer side of the body is connected with a lug boss, a metal wire penetrates through the inner side of the lug boss, the inner side wall of the body is provided with a fixing cavity, the inner side of the fixing cavity is sleeved with a protective component, the outer surface layer of the body is paved with a wear-resistant layer, and the wear-resistant layer is arranged on the outer surface of the body. A protection layer is embedded in the inner side of the body, the metal wires penetrating through the protruding parts wrap the outer side of the body, the contact area of the protruding parts and the metal wires and the body is increased, the metal wires in the protruding parts can improve the cutting resistance strength of the body, and the protection assembly in the fixing cavity can improve the wear resistance, toughness and cutting-resistant protection effect of the body. The problems that when an existing corrugated pipe is used in a low-temperature environment, the toughness of the corrugated pipe is reduced, the corrugated pipe is prone to cracking, the corrugated pipe is prone to being damaged or fractured due to frequent bending or friction, the corrugated pipe is prone to leakage, and the service life of the corrugated pipe is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of TPU corrugated pipes, in particular to a TPU corrugated pipe. Background Art

[0002] Thermoplastic polyurethane elastomer is also called thermoplastic polyurethane rubber, referred to as TPU. Typical TPUs include spandex, etc. Bellows refers to a tubular elastic sensitive element connected by foldable corrugated sheets along the folding and telescopic direction. Bellows are widely used in instruments and meters. Their main purpose is to be used as a measuring element for pressure measuring instruments to convert pressure into displacement or force. TPU has excellent high tension, high tensile force, toughness and aging resistance. It is a mature environmentally friendly material. TPU bellows are easily damaged by friction during use, which reduces the service life of the bellows.

[0003] When the existing bellows are used in a low-temperature environment, the toughness of the bellows is reduced, which easily causes the bellows to crack. Frequent bending or friction can easily cause the bellows to be damaged or broken, resulting in holes in the bellows, affecting the service life of the bellows. Therefore, a TPU bellows is provided by a technician in this field to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to provide a TPU corrugated tube to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solutions: a TPU corrugated tube, comprising a body of the corrugated tube, the outer side of the body is connected to a raised portion, the inner side of the raised portion is penetrated by a metal wire, and the inner side wall of the body is provided with a fixing cavity;

[0006] The inner side of the fixed cavity is sleeved with a protective component, the outer surface of the main body is paved with a wear-resistant layer, and the inner side of the main body is embedded with a protective layer.

[0007] Preferably, the protection component comprises reinforcing ribs sleeved on the inner side of the fixed cavity, the inner side of the reinforcing rib plate is connected to an anti-cut net, and an insulating pad is laid on the inner side of the anti-cut net plate and located inside the fixed cavity.

[0008] Preferably, the protective layer comprises an anti-corrosion layer coated on the inner side of the main body, a fireproof layer is laid on one side of the anti-corrosion layer, and an anti-cracking layer is laid on one side of the fireproof layer.

[0009] Preferably, a plurality of buffer cavities arranged evenly are provided inside the main body and on the other side of the fixed cavity.

[0010] Preferably, two sides of the reinforcing rib are respectively connected with a plurality of evenly arranged arc-shaped portions.

[0011] Preferably, a plurality of evenly arranged grooves are formed on the inner side of the anti-corrosion layer.

[0012] Preferably, the protrusion and the metal wire are both spiral-shaped.

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

[0014] 1. In the utility model, by setting a raised portion, a metal wire and a protective layer, the wear-resistant layer is a TPU film, the metal wire in the raised portion can increase the cut resistance of the body, the protective component in the fixed cavity can improve the wear resistance and toughness of the body and the anti-cut protection effect, and the wear-resistant layer on the outer layer of the body can increase the wear resistance of the body, avoiding the body from being damaged and leaking due to frequent bending or friction.

[0015] 2. In the utility model, by arranging reinforcing ribs, anti-cut nets and thermal insulation pads, the reinforcing ribs can increase the toughness and strength of the main body, the anti-cut net is a fiber mesh, which can protect the main body from cutting, and the thermal insulation pad can isolate the external temperature to avoid the influence of the low temperature environment on the main body, thereby improving the toughness and wear resistance of the main body when used in a low temperature environment and extending the service life of the main body.

[0016] 3. In the utility model, an anti-corrosion layer, a fireproof layer and an anti-cracking layer are provided. The anti-corrosion layer is located on the inner wall surface of the main body. The anti-corrosion layer is a polyurethane fiber membrane, the fireproof layer is a glass fiber belt, and the anti-cracking layer is a metal mesh. The anti-corrosion layer can prevent the gas or liquid transported by the main body from being corroded, the fireproof layer can improve the fire resistance of the main body, and the anti-cracking layer can protect the main body from cracking, thereby effectively extending the service life of the main body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a left-side cutaway stereoscopic view of the overall structure of the utility model;

[0019] Figure 3 The overall structure of the utility model Figure 2 Enlarged view of point A in the middle.

[0020] In the figure: 1. main body; 2. raised part; 3. metal wire; 4. fixing cavity; 5. wear-resistant layer; 6. reinforcing ribs; 7. anti-cutting net; 8. thermal insulation pad; 9. anti-corrosion layer; 10. fireproof layer; 11. anti-cracking layer; 12. buffer cavity; 13. arc-shaped part; 14. groove. 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] See also Figure 1 to Figure 3 In an embodiment of the utility model, a TPU corrugated tube includes a body 1 of the corrugated tube, a protrusion 2 is connected to the outside of the body 1, a metal wire 3 runs through the inside of the protrusion 2, a fixed cavity 4 is opened on the inner wall of the body 1, a protective component is mounted inside the fixed cavity 4, a wear-resistant layer 5 is laid on the outer surface of the body 1, a protective layer is embedded inside the body 1, and the protrusion 2 and the metal wire 3 are both spiral.

[0023] When in use, the metal wire 3 passing through the raised portion 2 is wrapped around the outside of the main body 1, increasing the contact area between the raised portion 2 and the metal wire 3 and the main body 1; the metal wire 3 in the raised portion 2 can increase the cut resistance of the main body 1; the wear-resistant layer 5 is a TPU film; the protective component in the fixed cavity 4 can improve the wear resistance and toughness of the main body 1 as well as the anti-cut protection effect; the wear-resistant layer 5 on the outer layer of the main body 1 can increase the wear resistance of the main body 1 and prevent the main body 1 from being damaged or leaking due to frequent bending or friction.

[0024] In one embodiment, specifically, the protective component includes a reinforcing rib 6 which is sleeved on the inner side of the fixed cavity 4, the inner side of the reinforcing rib 6 is connected to an anti-cut net 7, an insulating pad 8 is laid on the inner side of the anti-cut net 7 and located inside the fixed cavity 4, a plurality of buffer cavities 12 are evenly arranged on the inner side of the main body 1 and located on the other side of the fixed cavity 4, and a plurality of arc-shaped portions 13 are evenly arranged are respectively connected to both sides of the reinforcing rib 6.

[0025] Among them, the reinforcing ribs 6 can increase the toughness and strength of the main body 1, the arc-shaped portions 13 on both sides of the reinforcing ribs 6 are respectively embedded between the main body 1 and the anti-cut net 7, the arc-shaped portions 13 on both sides of the reinforcing ribs 6 can increase the strength of the reinforcing ribs 6, and the multiple buffer cavities 12 can improve the seismic buffering effect of the main body 1. The anti-cut net 7 is a fiber mesh, which can protect the main body 1 from cutting. The thermal insulation pad 8 can isolate the external temperature and prevent the low temperature environment from affecting the main body 1. At the same time, it can also prevent the main body 1 from being bent multiple times to produce cracks or breakages, thereby improving the toughness and wear resistance of the main body 1 when used in a low temperature environment and extending the service life of the main body 1.

[0026] Furthermore, the protective layer includes an anti-corrosion layer 9 coated on the inner side of the main body 1, a fireproof layer 10 is laid on one side of the anti-corrosion layer 9, an anti-cracking layer 11 is laid on one side of the fireproof layer 10, and a plurality of evenly arranged grooves 14 are opened on the inner side of the anti-corrosion layer 9.

[0027] In one embodiment, specifically, a plurality of grooves 14 evenly arranged on one side of the anti-corrosion layer 9 can increase the contact area between the transported liquid or gas and the main body 1, the anti-corrosion layer 9 is located on the inner wall surface of the main body 1, the anti-corrosion layer 9 is a polyurethane fiber membrane, the fireproof layer 10 is a glass fiber belt, and the anti-cracking layer 11 is a metal mesh. The anti-corrosion layer 9 can prevent the transported gas or liquid of the main body 1 from being corroded, the fireproof layer 10 can improve the fireproof effect of the main body 1, and prevent the main body 1 from being damaged by fire, and the anti-cracking layer 11 can protect the main body 1 from cracking, and can effectively extend the service life of the main body 1.

[0028] The working principle of this utility model:

[0029] First, the wear-resistant layer 5 on the outer surface of the main body 1 provides wear-resistant protection for the main body 1, and at the same time, the metal wire 3 in the raised portion 2 increases the cut resistance of the main body 1 to prevent the main body 1 from being damaged by friction and cutting. At the same time, the arc-shaped portions 13 on both sides of the reinforcing rib 6 are respectively embedded between the main body 1 and the anti-cut net 7. At this time, the arc-shaped portions 13 on both sides of the reinforcing rib 6 increase the strength of the reinforcing rib 6, and at the same time, multiple buffer cavities 12 provide seismic buffering protection for the main body 1, and at the same time, the anti-cut net 7 provides anti-cut protection for the main body 1, and the thermal insulation pad 8 isolates the external temperature to prevent the low temperature environment from affecting the main body 1.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A TPU corrugated tube, comprising a corrugated tube body (1), characterized in that: The outer side of the body (1) is connected to a raised portion (2), the inner side of the raised portion (2) is penetrated by a metal wire (3), and the inner side wall of the body (1) is provided with a fixing cavity (4); A protective component is sleeved on the inner side of the fixed cavity (4), a wear-resistant layer (5) is laid on the outer surface of the body (1), and a protective layer is embedded on the inner side of the body (1).

2. A TPU corrugated tube according to claim 1, characterized in that: The protective component comprises a reinforcing rib (6) sleeved on the inner side of the fixed cavity (4), the inner side of the reinforcing rib (6) plate is connected to an anti-cutting net (7), and an insulating pad (8) is laid on the inner side of the anti-cutting net (7) plate and located inside the fixed cavity (4).

3. A TPU corrugated tube according to claim 2, characterized in that: The protective layer comprises an anti-corrosion layer (9) coated on the inner side of the body (1), a fireproof layer (10) is laid on one side of the anti-corrosion layer (9), and an anti-cracking layer (11) is laid on one side of the fireproof layer (10).

4. A TPU corrugated tube according to claim 2, characterized in that: A plurality of buffer cavities (12) arranged evenly are provided inside the body (1) and on the other side of the fixed cavity (4).

5. A TPU corrugated tube according to claim 2, characterized in that: The two sides of the reinforcing rib (6) are respectively connected to a plurality of evenly arranged arc-shaped portions (13).

6. A TPU corrugated tube according to claim 3, characterized in that: The inner side of the anti-corrosion layer (9) is provided with a plurality of evenly arranged grooves (14).

7. The TPU corrugated tube according to claim 1, characterized in that: The protrusion (2) and the metal wire (3) are both spiral-shaped.

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