Pressure-resistant and water-resistant fire hose

Abstract

A pressure-resistant and water-resistant fire-fighting water pipe comprises a pipe body capable of being wound, the pipe body is a hollow pipe body with openings in the two ends, corresponding connectors are arranged at the two ends of the pipe body respectively, the inner wall of the pipe body is covered with an inner layer made of TPU materials, and the inner wall of the inner layer is flush with the inner wall of the corresponding connector or lower than the inner wall of the corresponding connector. The thickness of the inner layer is smaller than that of the pipe body. The thickness of the inner layer is 0.25-0.4 of the thickness of the pipe body. The fire hose has the advantages that the inner wall of the hose body is made of the TPU material, the TPU material is good in pressure-resistant effect, the hose can bear impact and extrusion of high-pressure water when the high-pressure water is introduced into the hose, meanwhile, the hydrolysis resistance is good, the hose can be kept complete after being soaked in the water for a long time, and the water resistance is good, so that the service life of the fire hose is prolonged, and the replacement frequency of the hose is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fire-fighting pipe manufacturing, in particular to a pressure-resistant and water-resistant fire-fighting water pipe. Background Art

[0002] There is a Chinese utility model patent with the patent number CN201821011026.6 and the name "A New Type of Firefighting Water Pipe", which discloses a new type of firefighting water pipe, which includes a fire hose for conveying firefighting water and a cable for conveying electrical energy and signals. Firefighting joints are provided at both ends of the firefighting water hose, and a connector is provided between the firefighting water hose and the cable, and the firefighting water hose is fixedly connected to the cable through the connector. The utility model combines and fixes the firefighting water hose and the cable so that the firefighting water pipe can convey both firefighting water and electrical energy and signals, thereby facilitating the use of the firefighting water pipe in the intelligent firefighting process. However, the firefighting water pipe does not disclose the material used for the pipe body. The firefighting pipe body made of ordinary plastic or rubber has poor pressure resistance, and may leak after repeated use, affecting the water discharge effect. Therefore, the structure of the firefighting water pipe needs to be further improved. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a pressure-resistant and water-resistant fire-fighting water pipe with good water-leakage-proof effect in view of the above-mentioned existing technical status.

[0004] The technical solution adopted by the utility model to solve the above-mentioned technical problems is as follows: the pressure-resistant and water-resistant fire-fighting water pipe comprises a coilable pipe body, wherein the pipe body is a hollow pipe body with openings at both ends, and corresponding joints are respectively arranged at both ends of the pipe body, and is characterized in that an inner layer made of TPU material is covered on the inner wall of the pipe body, and the inner wall of the inner layer is flush with or lower than the inner wall of the corresponding joint.

[0005] As an improvement, the thickness of the inner layer may preferably be smaller than the thickness of the tube body.

[0006] As a further improvement, the thickness of the inner layer may preferably be 0.25 to 0.4 of the thickness of the tube body.

[0007] As an improvement, a water-leakage-proof sealing ring may preferably be provided on the inner wall of the pipe body close to the joint, and the sealing ring is sandwiched between the corresponding inner layer and the inner wall of the pipe body.

[0008] As an improvement, the joints may preferably be detachably connected to the corresponding pipe body openings.

[0009] As a further improvement, the inner layer may preferably be sleeved on the connecting tube of the joint, and a clamp structure is sleeved on the outer wall of the tube body sleeved on the connecting tube.

[0010] As a further improvement, a protective sleeve may be preferably sleeved on the outer wall of the tube body, and the clamp structure is sleeved on the protective sleeve.

[0011] As a further improvement, the joint may preferably be provided with a lug into which a hook can be inserted to facilitate pulling open the tube body.

[0012] As a further improvement, annular protrusions that can increase friction may preferably be distributed on the inner wall of the inner layer corresponding to the connecting tube.

[0013] As an improvement, the tube body may preferably also be made of TPU material.

[0014] Compared with the prior art, the advantages of the utility model are: the inner wall of the pipe body is made of TPU material, and the TPU material has good pressure resistance. When high-pressure water passes into the pipeline, it can withstand the impact and extrusion of high-pressure water. At the same time, it has good hydrolysis resistance and can remain intact and has good water resistance after being immersed in water for a long time. Therefore, the service life of the fire water pipe is increased and the frequency of water pipe replacement is reduced; by adding a sealing ring, the connection sealing performance of the pipe body and the joint is improved to prevent water leakage; a lug is added to the joint, and the lug can be inserted into a hook, so that when the fire water pipe is rolled open after winding, the fire water pipe can be pulled to open faster, thereby improving the deployment efficiency of the water pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional diagram of an embodiment of the utility model;

[0016] Figure 2 for Figure 1 Side projection of

[0017] Figure 3 yes Figure 2 Sectional view along line AA;

[0018] Figure 4 yes Figure 1 The structural breakdown diagram of

[0019] Figure 5 yes Figure 4 Further structural decomposition diagram of ;

[0020] Figure 6 yes Figure 3 A magnified view of part I;

[0021] Figure 7 yes Figure 5 Enlarged view of part II;

[0022] Figure 8 yes Figure 6 Enlarged view of part III. DETAILED DESCRIPTION

[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0024] like Figures 1 to 8 As shown, the pressure-resistant and water-resistant fire hose of this embodiment includes a coilable pipe body 1, wherein the pipe body 1 is a hollow pipe body with openings at both ends, and corresponding joints 2 are respectively arranged at both ends of the pipe body 1. The inner wall of the pipe body 1 is covered with an inner layer 11 made of TPU material, and the inner wall of the inner layer 11 is flush with or lower than the inner wall of the corresponding joint 2. The thickness of the inner layer 11 is less than the thickness of the pipe body 1. The thickness of the inner layer 11 is 0.25 to 0.4 of the thickness of the pipe body. A water-proof sealing ring 12 is arranged on the inner wall of the pipe body near the joint 2, and the sealing ring 12 is sandwiched between the corresponding inner layer 11 and the inner wall of the pipe body. An annular protrusion 111 that can increase friction is distributed on the inner wall of the inner layer corresponding to the connecting tube 21. The pipe body 1 is also made of TPU material.

[0025] The joints 2 are all detachably connected to the corresponding openings of the pipe body. The inner layer 11 is sleeved on the connecting tube 21 of the joint 2, and a clamp structure 3 is sleeved on the outer wall of the pipe body sleeved on the connecting tube 21. The specific structure of the clamp structure 3 belongs to the known technology, so it will not be described in detail. A protective sleeve 4 is sleeved on the outer wall of the pipe body 1, and the clamp structure 3 is sleeved on the protective sleeve 4. The joint 2 is provided with a lug 22 that can be inserted with a hook to facilitate the opening of the pipe body 1.

Claims

1. A pressure-resistant and water-resistant fire hose, comprising a coilable pipe body (1), wherein the pipe body (1) is a hollow pipe body with openings at both ends, and corresponding joints (2) are respectively provided at both ends of the pipe body (1), characterized in that: The inner wall of the tube body (1) is covered with an inner layer (11) made of TPU material, and the inner wall of the inner layer (11) is flush with or lower than the inner wall of the corresponding joint (2).

2. The fire water pipe according to claim 1, characterized in that: The thickness of the inner layer (11) is smaller than the thickness of the tube body (1).

3. The fire water pipe according to claim 2, characterized in that: The thickness of the inner layer (11) is 0.25 to 0.4 of the thickness of the tube body.

4. The fire fighting water pipe according to any one of claims 1 to 3, characterized in that: A water-leakage-proof sealing ring (12) is arranged on the inner wall of the pipe body close to the joint (2), and the sealing ring (12) is sandwiched between the corresponding inner layer (11) and the inner wall of the pipe body.

5. The fire fighting water pipe according to any one of claims 1 to 3, characterized in that: The joints (2) are all detachably connected to the corresponding pipe body openings.

6. The fire fighting water pipe according to claim 5, characterized in that: The inner layer (11) is sleeved on the connecting tube (21) of the joint (2), and a clamp structure (3) is sleeved on the outer wall of the tube body sleeved on the connecting tube (21).

7. The fire fighting water pipe according to claim 6, characterized in that: A protective sleeve (4) is sleeved on the outer wall of the tube body (1), and the clamp structure (3) is sleeved on the protective sleeve (4).

8. The fire fighting water pipe according to claim 7, characterized in that: The joint (2) is provided with a lug (22) into which a hook can be inserted to facilitate pulling open the tube body (1).

9. The fire fighting water pipe according to claim 7, characterized in that: An annular protrusion (111) capable of increasing friction is distributed on the inner wall of the inner layer corresponding to the connecting tube (21).

10. The fire fighting water pipe according to any one of claims 1 to 3, characterized in that: The tube body (1) is also made of TPU material.

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