Wear-resistant fire hose
By distributing wear-resistant strips outside the protective layer of the fire hose and setting air cavity in the protective layer, the serious wear problem of traditional fire hose is solved, extending the service life and reducing maintenance costs.
Patent Information
- Application Number
- CN202323590102.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-27
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2033-12-27
AI Technical Summary
During use, traditional fire hoses have severe friction and wear, resulting in short service life and high maintenance costs.
A wear-resistant fire hose is designed, with a protective layer wrapped on the outside of it, and several wear-resistant strips are evenly distributed on the outside of the protective layer. The wear-resistant strips can be cut and adhered to the wear-resistant coating, and the protective layer is equipped with an air cavity to provide cushioning.
Through the setting of wear-resistant strips, the wear of the protective layer is transferred, which extends the service life of the water belt and reduces maintenance costs. The air chamber setting provides good buffering to avoid damage to the water band and instability of the water flow.
Smart Images
Figure CN222479874U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fire hoses, and more specifically, to a 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, while 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] In reality, fire hoses need to be constantly moved when in use, and in most cases the water in the hose is dragged along the ground, which will produce great friction. The protective layer on the surface of existing hoses is mostly a combination of warp knitting and weft knitting, and its surface has both horizontal and vertical structures. This results in great wear and tear no matter how the hose moves as long as it comes into contact with the ground, so it needs to be improved. Utility Model Content
[0004] In order to overcome the deficiencies of the prior art, the utility model provides a wear-resistant fire hose.
[0005] To achieve the above object, the utility model provides the following technical solutions: a wear-resistant fire hose, comprising a hose body, the outside of the hose body is wrapped with a protective layer, and the outside of the protective layer is provided with a plurality of evenly distributed wear-resistant strips;
[0006] The protective layer includes a wear-resistant coating connected to the wear-resistant strip on one side close to the hose body, the wear-resistant coating includes an outer rubber layer inside, the outer rubber layer includes a middle rubber layer inside, the middle rubber layer includes a supporting layer inside, the supporting layer is wrapped with an inner rubber layer inside, both ends of the inner rubber layer are fixedly connected to the outer surface of the hose body, and a gap is left between the middle part of the inner rubber layer and the hose body.
[0007] As a preferred technical solution of the utility model, the wear-resistant strip can be cut, and the back side of the wear-resistant strip is adhered to the outer surface of the wear-resistant coating.
[0008] As a preferred technical solution of the utility model, the outer surface of the wear-resistant strip is an arc, and the outer surface of the wear-resistant strip is smooth.
[0009] As a preferred technical solution of the utility model, both ends of the inner rubber layer are fixedly connected to the hose body, and an air cavity is provided between the middle of the inner rubber layer and the hose body.
[0010] As a preferred technical solution of the utility model, the first joint and the second joint are fixedly connected at both ends of the water hose body, the inner wall of the first joint and the outer surface of the second joint are both provided with threads, and the inner diameter of the first joint is matched with the outer diameter of the second joint.
[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0012] 1. Due to the provision of the wear-resistant strips, the utility model can transfer the wear of the protective layer, so as to reduce the frequency of irreversible wear of the entire hose body and effectively extend its service life. Moreover, since the wear-resistant strips are pasted, they are also easy to replace, greatly reducing the cost of use. The protective layer facilitates the installation of the wear-resistant strips and can better protect the hose body.
[0013] 2. Due to the setting of the air cavity, the utility model can provide good buffering for the hose body with the cooperation of the protective layer, which can not only avoid causing greater damage to the hose body, but also effectively avoid affecting the stability of the water flow in the hose; and because the protective layer and its air cavity are elastic, the fallen objects can be bounced up and slide down as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the structure of the utility model;
[0015] Figure 2 It is a front view of the utility model;
[0016] Figure 3 It is a cross-sectional view of the front side of the utility model;
[0017] Figure 4 for Figure 3 Front view of the mid-section;
[0018] Figure 5 It is a schematic diagram of the cross-sectional structure of the protective layer of the utility model.
[0019] In the figure: 1. Water hose body; 2. Protective layer; 21. Inner rubber layer; 22. Support layer; 23. Middle rubber layer; 24. Outer rubber layer; 25. Wear-resistant coating; 3. Wear-resistant strip; 4. First joint; 5. Second joint; 6. Air cavity. DETAILED DESCRIPTION
[0020] 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.
[0021] like Figures 1 to 5 As shown, the utility model provides a wear-resistant fire hose, comprising a hose body 1, the outside of the hose body 1 is wrapped with a protective layer 2, and the outside of the protective layer 2 is provided with a plurality of evenly distributed wear-resistant strips 3; due to the provision of the wear-resistant strips 3, the wear of the protective layer 2 can be transferred, so as to reduce the frequency of irreversible wear of the hose body 1 as a whole, so that its service life is effectively extended;
[0022] The protective layer 2 includes a wear-resistant coating 25 connected to the wear-resistant strip 3 near the water hose body 1, the wear-resistant coating 25 includes an outer rubber layer 24 inside, the outer rubber layer 24 includes a middle rubber layer 23 inside, the middle rubber layer 23 includes a support layer 22 inside, the support layer 22 is wrapped with an inner rubber layer 21 inside, both ends of the inner rubber layer 21 are fixedly connected to the outer surface of the water hose body 1, and a gap is left between the middle part of the inner rubber layer 21 and the water hose body 1; the protective layer 2 can facilitate the installation of the wear-resistant strip 3 and better protect the water hose body 1 at the same time.
[0023] The wear-resistant strip 3 can be cut, and the back of the wear-resistant strip 3 is pasted on the outer surface of the wear-resistant coating 25; since the wear-resistant strip 3 is pasted, it is also easy to replace, which greatly reduces the cost of use.
[0024] The outer surface of the wear-resistant strip 3 is an arc, and the outer surface of the wear-resistant strip 3 is smooth.
[0025] Among them, both ends of the inner rubber layer 21 are fixedly connected to the water hose body 1, and an air cavity 6 is arranged between the middle part of the inner rubber layer 21 and the water hose body 1; due to the setting of the air cavity 6, the water hose body 1 can be provided with good buffering with the cooperation of the protective layer 2, which can not only avoid causing greater damage to the water hose body 1, but also effectively avoid affecting the stability of the water flow in the water hose; and because the protective layer 2 and its air cavity 6 are elastic, the fallen objects can be bounced and slid as much as possible.
[0026] Among them, the first joint 4 and the second joint 5 are fixedly sleeved at both ends of the hose body 1, the inner wall of the first joint 4 and the outer surface of the second joint 5 are both provided with threads, and the inner diameter size of the first joint 4 is matched with the outer diameter size of the second joint 5.
[0027] The working principle and use process of this utility model:
[0028] When the hose is towed, the protective layer 2 will not be directly contacted, thereby extending its protective effect. When the wear-resistant strip 3 is worn, the adhesive backing can be torn off and replaced with a new one.
[0029] When a sharp object directly contacts the protective layer 2 along two adjacent wear-resistant strips 3 during towing, the wear of the sharp object can be effectively slowed down under the protective effect, thereby ensuring the protective effect;
[0030] When objects frequently falling at a fire scene hit the water hose, the air cavity 6 in the protective layer 2 can provide good cushioning, which not only avoids causing greater damage to the water hose, but also effectively avoids affecting the stability of the water flow in the water hose. At the same time, since the protective layer 2 and its air cavity 6 are elastic, the falling objects can be bounced up and slide down as much as possible.
[0031] 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.
[0032] 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 wear-resistant fire hose, comprising a hose body (1), characterized in that: The outside of the hose body (1) is wrapped with a protective layer (2), and the outside of the protective layer (2) is provided with a plurality of evenly distributed wear-resistant strips (3); The protective layer (2) includes a wear-resistant coating (25) connected to the wear-resistant strip (3) on one side close to the hose body (1); the wear-resistant coating (25) includes an outer rubber layer (24) inside; the outer rubber layer (24) includes a middle rubber layer (23) inside; the middle rubber layer (23) includes a support layer (22) inside; the support layer (22) is wrapped with an inner rubber layer (21); both ends of the inner rubber layer (21) are fixedly connected to the outer surface of the hose body (1); a gap is left between the middle part of the inner rubber layer (21) and the hose body (1).
2. A wear-resistant fire hose according to claim 1, characterized in that: The wear-resistant strip (3) can be cut, and the back side of the wear-resistant strip (3) is adhered to the outer surface of the wear-resistant coating (25).
3. The wear-resistant fire hose according to claim 1, characterized in that: The outer surface of the wear-resistant strip (3) is an arc, and the outer surface of the wear-resistant strip (3) is smooth.
4. The wear-resistant fire hose according to claim 1, characterized in that: The two ends of the inner rubber layer (21) are fixedly connected to the hose body (1), and an air cavity (6) is provided between the middle of the inner rubber layer (21) and the hose body (1).
5. The wear-resistant fire hose according to claim 1, characterized in that: A first joint (4) and a second joint (5) are respectively fixedly sleeved at both ends of the hose body (1); the inner wall of the first joint (4) and the outer surface of the second joint (5) are both provided with threads; the inner diameter of the first joint (4) matches the outer diameter of the second joint (5).