Corrugated pipe internally coated with flame-retardant plastic

Abstract

The utility model discloses a corrugated pipe internally covered with flame-retardant plastic, which relates to the technical field of corrugated pipes and comprises a corrugated pipe, protrusions are arrayed on the surface of the corrugated pipe at equal intervals, one end of the corrugated pipe is fixedly connected with a first connector, the other end of the corrugated pipe is fixedly connected with a second connector, internal threads are arranged inside the first connector, and the second connector is fixedly connected with the second connector. External threads are formed in the surface of the second connector, a flame-retardant plastic layer is arranged on the inner wall of the corrugated pipe, and a reinforcing assembly is arranged on the corrugated pipe; the reinforcing blocks are arranged on the surface of the protrusion in a circumferential array mode, and reinforcing ribs are fixedly connected between the reinforcing blocks. According to the corrugated pipe internally coated with the flame-retardant plastic, the flame-retardant plastic layer and the anti-corrosion layer are arranged, so that the acid and alkali corrosion resistance and the flame-retardant effect of the corrugated pipe are improved, and the corrugated pipe is safe and reliable to use; the structural strength of the corrugated pipe is improved through mutual cooperation of the reinforcing blocks and the reinforcing ribs, the corrugated pipe body is provided with an elastic supporting structure, the supporting performance is improved, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of corrugated pipes, in particular to a corrugated pipe with a flame-retardant plastic coating. Background Art

[0002] Bellows refers to a tubular elastic sensitive element formed by connecting foldable corrugated sheets along the folding and expansion direction. Bellows mainly include metal bellows, bellows expansion joints, bellows heat exchange tubes, diaphragm boxes and metal hoses. Plastic and other material bellows play an irreplaceable role in media transportation, power threading, machine tools, home appliances and other fields.

[0003] After searching the existing public patent number: CN201720019619.6, the public patent name: a corrugated pipe, the technical solution of which includes a pipe body and connectors arranged at both ends of the pipe body, the outer side of the pipe body is provided with evenly distributed nylon lines, the nylon lines are fixedly connected to the surface of the pipe body, and the inside of the pipe body is provided with a reinforcement sleeve, which is fixedly connected to the connector. The overall structure of the corrugated pipe is stable; the situation of damage to the corrugated pipe due to stress is reduced.

[0004] However, the above-mentioned corrugated tube is provided with nylon wire to improve the tensile strength of the tube surface, but the acid and alkali corrosion resistance and structural strength of the above-mentioned tube are poor. When a leakage accident occurs in the cable passing through, it is very easy to cause spontaneous combustion inside the corrugated tube, which is not safe and reliable to use. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides a bellows coated with flame-retardant plastic, which solves the problems of poor acid and alkali corrosion resistance and structural strength of the bellows.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the utility model is implemented through the following technical solutions: a corrugated pipe covered with flame-retardant plastic, comprising: a corrugated pipe, the surface of the corrugated pipe has equidistant arrays of protrusions, one end of the corrugated pipe is fixedly connected to a first connector, the other end of the corrugated pipe is fixedly connected to a second connector, the first connector is provided with an internal thread, the surface of the second connector is provided with an external thread, the inner wall of the corrugated pipe is provided with a flame-retardant plastic layer, and the corrugated pipe is provided with a reinforcement component;

[0009] The reinforcement assembly includes reinforcement blocks, which are arranged in a circumferential array on the raised surface, and reinforcement ribs are fixedly connected between the reinforcement blocks.

[0010] Preferably, the reinforcement block is arranged in an arc shape, and the reinforcement block is arranged to fit the protrusion.

[0011] Preferably, the reinforcing ribs and the protrusions do not contact each other, and the reinforcing ribs are arranged in an equidistant array on the bellows and are arranged one-to-one with the protrusions.

[0012] Preferably, the outer wall of the corrugated tube is provided with an anti-corrosion layer, and the inner side of the flame-retardant plastic layer is provided with a wear-resistant layer.

[0013] Preferably, the inner diameter of the first connector is the same as the outer diameter of the second connector, and the first connector is the same as the second connector in length.

[0014] Preferably, the reinforcing rib is configured as a stainless steel ring, and the reinforcing block is made of the same material as the protrusion.

[0015] Preferably, a rubber ring is provided on the inner wall of the first connecting head.

[0016] Beneficial Effects

[0017] The utility model provides a corrugated pipe covered with flame-retardant plastic, which has at least the following beneficial effects compared with the prior art:

[0018] The corrugated pipe covered with flame-retardant plastic is provided with a flame-retardant plastic layer and an anti-corrosion layer, thereby improving the acid and alkali corrosion resistance and the flame retardant effect of the corrugated pipe, and is sufficiently safe and reliable to use; the structural strength of the corrugated pipe is increased by the mutual cooperation of the reinforcing blocks and the reinforcing ribs, so that the corrugated pipe body has an elastic supporting structure, the supporting performance is improved, and it is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the strengthening component of the utility model;

[0021] Figure 3 It is a schematic diagram of the structure of the protrusion of the utility model;

[0022] Figure 4 This is a schematic diagram of the layered structure of the corrugated pipe of the utility model.

[0023] In the figure: 1. bellows; 2. first connector; 3. internal thread; 4. second connector; 5. external thread; 6. reinforcement component; 601. reinforcement block; 602. reinforcement rib; 7. flame retardant plastic layer; 8. anti-corrosion layer; 9. wear-resistant layer; 10. protrusion. DETAILED DESCRIPTION

[0024] 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.

[0025] Embodiment 1:

[0026] See also Figure 1-4 The utility model provides a technical solution: a bellows 1, the surface of the bellows 1 has equidistant arrays of protrusions 10, one end of the bellows 1 is fixedly connected to a first connector 2, the other end of the bellows 1 is fixedly connected to a second connector 4, the first connector 2 is provided with an internal thread 3, the surface of the second connector 4 is provided with an external thread 5, the inner wall of the bellows 1 is provided with a flame retardant plastic layer 7, and the bellows 1 is provided with a reinforcing component 6;

[0027] The reinforcing assembly 6 includes reinforcing blocks 601 , which are arranged in a circumferential array on the surface of the protrusion 10 , and reinforcing ribs 602 are fixedly connected between the reinforcing blocks 601 .

[0028] Analysis of the above content: the second connector 4 is inserted into the first connector 2, and the bellows 1 are connected to each other through the cooperation of the internal thread 3 and the external thread 5, so as to extend the length of the bellows 1. The bellows 1 are spliced ​​to each other. The reinforcing block 601 and the reinforcing rib 602 are provided to increase the structural strength of the bellows 1 and improve the supporting performance of the bellows 1. The reinforcing block 601 is provided to increase the strength of the protrusion 10, so as to prevent the protrusion 10 from being damaged when the bellows 1 is stretched.

[0029] Embodiment 2:

[0030] See also Figure 1-4 The utility model provides a technical solution based on the first embodiment: the reinforcing block 601 is arranged in an arc shape, and the reinforcing block 601 is arranged in close contact with the protrusion 10.

[0031] Analysis of the above content: The reinforcing block 601 is fitted with the protrusion 10 to improve the structural strength of the protrusion 10 and prevent the protrusion 10 from being damaged by force when the corrugated tube 1 is stretched. The arc-shaped setting can better fit with the protrusion 10.

[0032] Embodiment three:

[0033] See also Figure 1-4 The utility model provides a technical solution based on the first embodiment: the reinforcing ribs 602 and the protrusions 10 do not contact each other, and the reinforcing ribs 602 are arranged in an equidistant array on the bellows 1 and are arranged one-to-one with the protrusions 10.

[0034] Analysis of the above content: The reinforcing blocks 601 are connected by reinforcing ribs 602 to improve the supporting force of the bellows 1 and increase the elastic supporting force of the bellows 1.

[0035] Embodiment 4:

[0036] See also Figure 1-4 The utility model provides a technical solution based on the first embodiment: the outer wall of the corrugated tube 1 is provided with an anti-corrosion layer 8, and the inner side of the flame-retardant plastic layer 7 is provided with a wear-resistant layer 9.

[0037] Analysis of the above content: the anti-corrosion layer 8 is provided to improve the anti-corrosion ability of the bellows 1, the wear-resistant layer 9 is provided to improve the wear resistance of the bellows 1, and the flame-retardant plastic layer 7 is provided to improve the flame-retardant ability of the bellows 1 and improve the fireproof performance.

[0038] Embodiment five:

[0039] See also Figure 1-4 The utility model provides a technical solution based on the first embodiment: the inner diameter of the first connector 2 is the same as the outer diameter of the second connector 4, and the first connector 2 is the same as the second connector 4 in length. A rubber ring is arranged on the inner wall of the first connector 2.

[0040] Analysis of the above content: a rubber ring is set to increase the sealing between the first connector 2 and the second connector 4. The first connector 2 and the second connector 4 are threadedly connected through the internal thread 3 and the external thread 5 to achieve rapid splicing of the bellows 1, which is convenient for long-distance splicing.

[0041] Embodiment six:

[0042] See also Figure 1-4 The utility model provides a technical solution based on the first embodiment: the reinforcing rib 602 is set as a stainless steel ring, and the reinforcing block 601 is made of the same material as the protrusion 10.

[0043] Analysis of the above content: Strengthen the ribs of 602 stainless steel to improve anti-rust ability and extend service life.

[0044] 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.

[0045] 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 corrugated pipe coated with flame-retardant plastic, characterized in that: include: A bellows (1), wherein the surface of the bellows (1) is provided with protrusions (10) arranged in an equidistant array, one end of the bellows (1) is fixedly connected to a first connector (2), and the other end of the bellows (1) is fixedly connected to a second connector (4), the first connector (2) is provided with an internal thread (3), and the surface of the second connector (4) is provided with an external thread (5), the inner wall of the bellows (1) is provided with a flame-retardant plastic layer (7), and the bellows (1) is provided with a reinforcing component (6); The reinforcing assembly (6) comprises reinforcing blocks (601), wherein the reinforcing blocks (601) are arranged in a circumferential array on the surface of the protrusion (10), and reinforcing ribs (602) are fixedly connected between the reinforcing blocks (601).

2. The corrugated pipe coated with flame-retardant plastic according to claim 1, characterized in that: The reinforcing block (601) is arranged in an arc shape, and the reinforcing block (601) is arranged to fit the protrusion (10).

3. The corrugated tube coated with flame-retardant plastic according to claim 2, characterized in that: The reinforcing ribs (602) and the protrusions (10) do not contact each other. The reinforcing ribs (602) are arranged in an equidistant array on the corrugated tube (1) and are arranged in a one-to-one correspondence with the protrusions (10).

4. The corrugated tube coated with flame-retardant plastic according to claim 1, characterized in that: The outer wall of the corrugated tube (1) is provided with an anti-corrosion layer (8), and the inner side of the flame-retardant plastic layer (7) is provided with a wear-resistant layer (9).

5. The corrugated tube coated with flame-retardant plastic according to claim 1, characterized in that: The inner diameter of the first connector (2) is the same as the outer diameter of the second connector (4), and the first connector (2) and the second connector (4) are the same in length.

6. The corrugated tube coated with flame-retardant plastic according to claim 1, characterized in that: The reinforcing rib (602) is configured as a stainless steel ring, and the reinforcing block (601) is made of the same material as the protrusion (10).

7. The corrugated tube coated with flame-retardant plastic according to claim 1, characterized in that: The inner wall of the first connecting head (2) is provided with a rubber ring.

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