Multilayer compression-resistant and wear-resistant fire hose

Abstract

The utility model discloses a multilayer compression-resistant wear-resistant fire hose, which comprises a support frame and a winding disc, a fire hose body is wound on the surface of the winding disc, the fire hose body comprises a rubber waterproof layer, the outer surface of the rubber waterproof layer is wrapped with an inner protective layer, and the outer surface of the inner protective layer is wrapped with an outer protective layer. The inner protective layer comprises a polyamide fiber layer and a polyester fiber layer, and the outer surface of the inner protective layer is wrapped with a TPU waterproof layer. The TPU waterproof layer and the rubber waterproof layer are arranged, so that double-layer waterproof protection is formed in the fire hose body, the waterproof sealing performance of the fire hose body in the using process is improved, and meanwhile, due to the arrangement of the outer protective layer, the fire hose body is prevented from being damaged. Due to the fact that the polyurethane wear-resistant coating and the aramid fiber layer in the outer protective layer both have good wear-resistant performance, double-layer wear-resistant protection is formed on the outer surface of the fire hose body, and the probability that the fire hose body is broken due to wear is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fire hoses, in particular to a multi-layer pressure-resistant and wear-resistant fire hose. Background Art

[0002] A fire hose is a flexible pipe used to transport flame-retardant liquids such as high-pressure water or foam. Traditional fire hoses are lined with rubber and wrapped with linen fabric on the outside. Advanced fire hoses are made of polymer materials such as polyurethane. There are metal joints at both ends of the fire hose, which can be connected to another hose to extend the distance or to a nozzle to increase the liquid spray pressure.

[0003] However, the existing fire hoses have poor compression and puncture resistance. During use, they are easily broken due to excessive internal pressure or puncture by sharp objects. At the same time, the surface wear resistance is poor, and they are easily worn and broken during dragging, which reduces the service life of the fire hose. Utility Model Content

[0004] The utility model aims to provide a multi-layer pressure-resistant and wear-resistant fire hose, which has the advantages of good pressure resistance and puncture resistance, good wear resistance and effectively improves the overall service life.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-layer pressure-resistant and wear-resistant fire hose, comprising a support frame and a winding drum, a fire hose body is wound on the surface of the winding drum, the fire hose body comprises a rubber waterproof layer, the outer surface of the rubber waterproof layer is wrapped with an internal protective layer, the internal protective layer comprises a polyamide fiber layer and a polyester fiber layer, the outer surface of the internal protective layer is wrapped with a TPU waterproof layer, the outer surface of the TPU waterproof layer is wrapped with an external protective layer, the external protective layer comprises a polyurethane wear-resistant coating and an aramid fiber layer.

[0006] As a preferred solution, the left side of the support frame is movably connected to a rotating shaft through a bearing, the surface of the winding disk is sleeved on the right end of the rotating shaft, the left end of the rotating shaft is fixedly connected to a limiting lever all around, and the left side of the winding disk is movably connected to the right side of the limiting lever.

[0007] As a preferred solution, a fixing plate is fixedly connected to the upper end of the support frame, and a locking screw is threadedly connected to the surface of the fixing plate.

[0008] As a preferred solution, a water pipe joint is fixedly mounted on the front surface of the fire hose body, and an outer surface of the water pipe joint is provided with anti-slip grooves.

[0009] As a preferred solution, the inner surface of the polyamide fiber layer is wrapped on the outer surface of the polyester fiber layer, and the surface of the polyurethane wear-resistant coating is coated on the outer surface of the aramid fiber layer.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] 1. The utility model forms a double-layer waterproof protection inside the fire hose body by setting the TPU waterproof layer and the rubber waterproof layer, thereby improving the waterproof sealing of the fire hose body during use. At the same time, through the setting of the external protective layer, since the polyurethane wear-resistant coating and the aramid fiber layer in the external protective layer both have good wear resistance, a double-layer wear-resistant protection is formed on the outer surface of the fire hose body, reducing the probability of the fire hose body being broken due to wear. At the same time, since the aramid fiber layer has excellent strength, a good strength protection is formed on the surface of the fire hose body, reducing the probability of the fire hose body being damaged by pressure or puncture, and improving the compression and puncture resistance of the fire hose body. At the same time, through the setting of the internal protective layer, since the polyamide fiber layer and the polyester fiber layer in the internal protective layer both have good strength, a double-layer strength protection is formed inside the fire hose body, further reducing the probability of the fire hose body being damaged by pressure or puncture, greatly improving the compression and puncture resistance of the fire hose body, and ensuring the service life of the fire hose body.

[0012] 2. The utility model provides a support frame and a rotating shaft, which makes it convenient for personnel to operate the winding drum to rotate so as to achieve the purpose of winding up the fire hose body. The setting of the limit lever achieves the purpose of limiting the left side of the winding drum and the rotating shaft. The setting of the fixing plate and the locking screw makes it convenient for personnel to lock and fix the rotating shaft after the fire hose body is wound up, so as to avoid the fire hose body being unwound and loosened due to the rotation of the rotating shaft due to force during the placement process. The setting of the water pipe joint makes it convenient for personnel to connect the fire hose body with the fire hose gun. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional diagram of the utility model;

[0014] Figure 2 This is a three-dimensional diagram from another perspective of the present invention;

[0015] Figure 3 This is a schematic diagram of the structure of the fire hose body of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the external protective layer of the utility model;

[0017] Figure 5 This is a schematic diagram of the internal protective layer structure of the utility model.

[0018] In the figure: 1. Fire hose body; 11. External protective layer; 111. Polyurethane wear-resistant coating; 112. Aramid fiber layer; 12. TPU waterproof layer; 13. Internal protective layer; 131. Polyamide fiber layer; 132. Polyester fiber layer; 14. Rubber waterproof layer; 2. Limit lever; 3. Rotating shaft; 4. Fixing plate; 5. Locking screw; 6. Support frame; 7. Water pipe joint; 8. Reel. DETAILED DESCRIPTION

[0019] 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.

[0020] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0021] Embodiment 1:

[0022] See also Figure 1-Figure 5 As shown, the utility model provides a multi-layer pressure-resistant and wear-resistant fire hose, including a support frame 6 and a winding drum 8, a fire hose body 1 is wound on the surface of the winding drum 8, the fire hose body 1 includes a rubber waterproof layer 14, the outer surface of the rubber waterproof layer 14 is wrapped with an internal protective layer 13, the internal protective layer 13 includes a polyamide fiber layer 131 and a polyester fiber layer 132, the outer surface of the internal protective layer 13 is wrapped with a TPU waterproof layer 12, the outer surface of the TPU waterproof layer 12 is wrapped with an external protective layer 11, the external protective layer 11 includes a polyurethane wear-resistant coating 111 and an aramid fiber layer 112.

[0023] In the technical solution, by setting the TPU waterproof layer 12 and the rubber waterproof layer 14, a double-layer waterproof protection is formed inside the fire hose body 1, which improves the waterproof sealing of the fire hose body 1 during use. At the same time, by setting the external protective layer 11, since the polyurethane wear-resistant coating 111 and the aramid fiber layer 112 in the external protective layer 11 both have good wear resistance, a double-layer wear-resistant protection is formed on the outer surface of the fire hose body 1, which reduces the probability of the fire hose body 1 being broken due to wear. At the same time, since the aramid fiber layer 112 has excellent strength, the surface of the fire hose body 1 The surface forms a good strength protection, reduces the probability of damage caused by pressure or puncture of the fire hose body 1, and improves the compression and puncture resistance of the fire hose body 1. At the same time, through the arrangement of the internal protective layer 13, since the polyamide fiber layer 131 and the polyester fiber layer 132 in the internal protective layer 13 have good strength, a double-layer strength protection is formed inside the fire hose body 1, further reducing the probability of damage caused by pressure or puncture of the fire hose body 1, greatly improving the compression and puncture resistance of the fire hose body 1, and ensuring the service life of the fire hose body 1.

[0024] Embodiment 2:

[0025] On the basis of embodiment 1, the utility model is as follows Figure 1-Figure 5 As shown, the left side of the support frame 6 is movably connected to the rotating shaft 3 through a bearing, the surface of the winding disk 8 is sleeved on the right end of the rotating shaft 3, the left end of the rotating shaft 3 is fixedly connected to the limiting stop rod 2, the left side of the winding disk 8 is movably connected to the right side of the limiting stop rod 2, the upper end of the support frame 6 is fixedly connected to the fixing plate 4, the surface of the fixing plate 4 is threadedly connected to the locking screw 5, the front surface of the fire hose body 1 is fixedly installed with a water pipe joint 7, the outer surface of the water pipe joint 7 is provided with anti-slip grooves, the inner surface of the polyamide fiber layer 131 is wrapped on the outer surface of the polyester fiber layer 132, and the surface of the polyurethane wear-resistant coating 111 is coated on the outer surface of the aramid fiber layer 112.

[0026] In the present technical scheme, through the setting of the support frame 6 and the rotating shaft 3, it is convenient for personnel to operate the winding drum 8 to rotate so as to achieve the purpose of winding up the fire hose body 1. Through the setting of the limit lever 2, the purpose of limiting the left side of the winding drum 8 and the rotating shaft 3 is achieved. Through the setting of the fixing plate 4 and the locking screw 5, it is convenient for personnel to lock and fix the rotating shaft 3 after the fire hose body 1 is wound up, so as to avoid the fire hose body 1 from being unwound and loosened due to the rotation of the rotating shaft 3 due to the force during the placement process. Through the setting of the water pipe joint 7, it is convenient for personnel to connect the fire hose body 1 with the fire hose gun.

[0027] The working principle of the utility model is: through the arrangement of the TPU waterproof layer 12 and the rubber waterproof layer 14, a double-layer waterproof protection is formed inside the fire hose body 1, which improves the waterproof sealing performance of the fire hose body 1 during use. At the same time, through the arrangement of the external protective layer 11, since the polyurethane wear-resistant coating 111 and the aramid fiber layer 112 in the external protective layer 11 both have good wear resistance, a double-layer wear-resistant protection is formed on the outer surface of the fire hose body 1, which reduces the probability of the fire hose body 1 being broken due to wear. At the same time, since the aramid fiber layer 112 has excellent strength, the fire hose body 1 forms a good strength protection on the surface, reduces the probability of damage caused by pressure or puncture of the fire hose body 1, and improves the compression and puncture resistance of the fire hose body 1. At the same time, through the setting of the internal protective layer 13, since the polyamide fiber layer 131 and the polyester fiber layer 132 in the internal protective layer 13 both have good strength, a double-layer strength protection is formed inside the fire hose body 1, further reducing the probability of damage caused by pressure or puncture of the fire hose body 1, greatly improving the compression and puncture resistance of the fire hose body 1, and ensuring the service life of the fire hose body 1.

[0028] Importantly, it should be noted that the construction and arrangement of the present application shown in a number of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete element may be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also an equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0029] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention).

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A multi-layer pressure-resistant and wear-resistant fire hose, comprising a support frame (6) and a reel (8), characterized in that: A fire hose body (1) is wound on the surface of the reel (8); the fire hose body (1) comprises a rubber waterproof layer (14); the outer surface of the rubber waterproof layer (14) is wrapped with an inner protective layer (13); the inner protective layer (13) comprises a polyamide fiber layer (131) and a polyester fiber layer (132); the outer surface of the inner protective layer (13) is wrapped with a TPU waterproof layer (12); the outer surface of the TPU waterproof layer (12) is wrapped with an outer protective layer (11); the outer protective layer (11) comprises a polyurethane wear-resistant coating (111) and an aramid fiber layer (112).

2. The multi-layer pressure-resistant and wear-resistant fire hose according to claim 1 is characterized in that: The left side of the support frame (6) is movably connected to a rotating shaft (3) via a bearing, the surface of the winding disc (8) is sleeved on the right end of the rotating shaft (3), the left end of the rotating shaft (3) is fixedly connected to a limit stop rod (2) all around, and the left side of the winding disc (8) is movably connected to the right side of the limit stop rod (2).

3. The multi-layer pressure-resistant and wear-resistant fire hose according to claim 1 is characterized in that: The upper end of the support frame (6) is fixedly connected to a fixing plate (4), and the surface of the fixing plate (4) is threadedly connected to a locking screw (5).

4. The multi-layer pressure-resistant and wear-resistant fire hose according to claim 1, characterized in that: A water pipe joint (7) is fixedly mounted on the front surface of the fire hose body (1), and an outer surface of the water pipe joint (7) is provided with anti-slip grooves.

5. The multi-layer pressure-resistant and wear-resistant fire hose according to claim 1, characterized in that: The inner surface of the polyamide fiber layer (131) is wrapped around the outer surface of the polyester fiber layer (132), and the surface of the polyurethane wear-resistant coating (111) is coated on the outer surface of the aramid fiber layer (112).

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