Flame-retardant fire hose

Abstract

The utility model relates to the technical field of fire hoses, in particular to a flame-retardant fire hose which comprises a fire hose body, the fire hose body is composed of a water retaining layer, a reinforcing layer, a flame-retardant layer, a wear-resistant layer and a woven layer, the water retaining layer is arranged on the innermost layer, the woven layer is arranged on the outermost layer, and the flame-retardant layer is arranged on the reinforcing layer. The two ends of the fire hose body are each provided with a quick replacement metal head, and the quick replacement metal heads are slidably connected with the fire hose body. According to the fire hose, the fire hose body can be inserted into the rapid replacement metal head through the rapid replacement metal head and the fire hose body, and then the fire hose body is firmly fixed on the rapid replacement metal head by extruding the bolt and the tightening hoop, so that the situation that the fire hose is broken is avoided; and the metal joint can be connected to the fractured part to continue to work, and the fire hose can continue to be used, so that the trouble of fire fighting work is greatly relieved, and a large amount of resources are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire hoses, in particular to a flame retardant fire hose. Background Art

[0002] Fire hoses usually refer to a certain length of soft, coiled round or flat tubular body made of a tubular fabric layer woven with warp and weft threads and a lining (or covering layer) combined by steam vulcanization or adhesive. They are hoses used for water delivery at fire scenes, mainly used to transport flame-retardant liquids such as high-pressure water or foam. Fire hoses can be divided into four categories according to their uses: combat fire hoses, conveying fire hoses, forest fire hoses, and suction hoses. Each type of hose has its specific application scenarios and performance requirements.

[0003] The common fire hoses on the market now are usually composed of a water hose and metal joints at both ends. The metal joints can be quickly connected to a water valve or nozzle for water spraying operations. However, most fire hoses are fastened to the metal joints and cannot be easily disassembled. Once the fire hose breaks, the metal joint on the broken side can no longer be connected to the fire hose to continue working, and the fire hose cannot be used, which causes great trouble to firefighting work and also causes great waste. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that most of the existing fire water pipes are fastened on metal joints and cannot be easily disassembled. Once the fire water pipe is broken, the metal joint on the broken side cannot be connected to the fire water pipe to continue working, and the fire water pipe cannot be used, which causes great trouble to fire fighting work and also causes great waste. A flame retardant fire hose is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A flame retardant fire hose comprises a fire hose body, wherein the fire hose body is composed of a water retaining layer, a reinforcing layer, a flame retardant layer, a wear-resistant layer and a braided layer, wherein the water retaining layer is arranged at the innermost layer, and the braided layer is arranged at the outermost layer. Quick-change metal heads are arranged at both ends of the fire hose body, and the quick-change metal heads are slidably connected to the fire hose body.

[0007] Preferably, the inner wall of the reinforcing layer is fixedly connected to the outer wall of the water retaining layer, the inner wall of the flame retardant layer is fixedly connected to the outer wall of the reinforcing layer, the inner wall of the wear-resistant layer is fixedly connected to the outer wall of the flame retardant layer, and the inner wall of the braided layer is fixedly connected to the outer wall of the wear-resistant layer.

[0008] Preferably, the quick-change metal head includes a middle partition, an internal long connecting tube, an external short connecting tube, evenly distributed reinforcing ribs, threaded holes, extrusion bolts, a connecting head, a tightening hoop, a fixing head, and connecting bolts. The middle partition is arranged in a circular ring shape, and the internal long connecting tube is fixedly connected to the inner wall of the middle partition.

[0009] Preferably, the external short connecting tube is fixedly connected to one side of the outer wall of the middle partition, the reinforcing rib is arranged in a triangular shape, one side of the outer wall of the reinforcing rib is fixedly connected to the outer wall of the middle partition, and the other side of the outer wall of the reinforcing rib is fixedly connected to the outer wall of the external short connecting tube.

[0010] Preferably, the threaded hole is arranged on the outer wall of the external short connecting tube, the extrusion bolt is threadedly connected to the threaded hole, the bottom end of the extrusion bolt is abutted against the outer wall of the fire hose body, and the connecting head is fixedly connected to the other side of the outer wall of the middle partition.

[0011] Preferably, the tightening hoop is in contact with the outer wall of the fire hose body, the fixing head is fixedly connected to both ends of the tightening hoop, and the connecting bolt is slidably connected to the hole on the fixing head.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] When the utility model is in use, the fire hose body can be inserted into the quick-change metal head through the quick-change metal head and the fire hose body, and then the fire hose body can be firmly fixed on the quick-change metal head through the extrusion bolts and the tightening hoop. When the fire hose body needs to be replaced, it is only necessary to loosen the extrusion bolts and the tightening hoop to take out the fire hose body for replacement and installation. In this way, if the fire water pipe is broken again, the metal joint can be connected to the broken part to continue working, and the fire hose can continue to be used, which greatly alleviates the troubles of firefighting work and saves a lot of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional structural schematic diagram of a flame-retardant fire hose proposed by the utility model;

[0015] Figure 2 This is a diagram showing the internal components of a fire hose body of a flame-retardant fire hose proposed by the utility model;

[0016] Figure 3 The utility model is a semi-sectioned three-dimensional structural schematic diagram of a flame-retardant fire hose.

[0017] In the figure: 1 fire hose body, 2 water retaining layer, 3 reinforcement layer, 4 flame retardant layer, 5 wear-resistant layer, 6 braided layer, 7 quick-change metal head, 8 middle partition, 9 internal long connecting tube, 10 external short connecting tube, 11 reinforcing rib, 12 threaded hole, 13 extrusion bolt, 14 connecting head, 15 tightening hoop, 16 fixing head, 17 connecting bolt. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0019] Reference Figure 1-Figure 3 A flame retardant fire hose comprises a fire hose body 1, which is composed of a water retaining layer 2, a reinforcing layer 3, a flame retardant layer 4, a wear-resistant layer 5, and a braided layer 6. The water retaining layer 2 is arranged in the innermost layer, and the braided layer 6 is arranged in the outermost layer. Quick-change metal heads 7 are arranged at both ends of the fire hose body 1, and the quick-change metal heads 7 are slidably connected to the fire hose body 1.

[0020] It should be noted that the extrusion bolts 13 and the connecting bolts 17 are existing technologies, and the specific models and specifications need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it is not repeated here.

[0021] Furthermore, the inner wall of the reinforcing layer 3 is fixedly connected to the outer wall of the water retaining layer 2 , the inner wall of the flame retardant layer 4 is fixedly connected to the outer wall of the reinforcing layer 3 , the inner wall of the wear-resistant layer 5 is fixedly connected to the outer wall of the flame retardant layer 4 , and the inner wall of the braided layer 6 is fixedly connected to the outer wall of the wear-resistant layer 5 .

[0022] Among them, the fire hose body 1 is composed of a water retaining layer 2, a reinforcing layer 3, a flame retardant layer 4, a wear-resistant layer 5, and a braided layer 6 from the inside to the outside. It has good flame retardancy, wear resistance and waterproofness, and can enhance the service life of the fire hose body 1.

[0023] Furthermore, the quick-replacement metal head 7 includes a middle partition 8, an internal long connecting tube 9, an external short connecting tube 10, evenly distributed reinforcing ribs 11, threaded holes 12, extrusion bolts 13, a connecting head 14, a tightening hoop 15, a fixing head 16, and connecting bolts 17. The middle partition 8 is arranged in a circular ring shape, and the internal long connecting tube 9 is fixedly connected to the inner wall of the middle partition 8.

[0024] The inner wall of the fire hose body 1 is sleeved on the internal long connecting tube 9 , and the outer wall of the fire hose body 1 is slidably connected to the inner wall of the external short connecting tube 10 .

[0025] Furthermore, the external short connecting tube 10 is fixedly connected to one side of the outer wall of the middle partition 8, and the reinforcing rib 11 is arranged in a triangular shape, with one side of the outer wall of the reinforcing rib 11 fixedly connected to the outer wall of the middle partition 8, and the other side of the outer wall of the reinforcing rib 11 fixedly connected to the outer wall of the external short connecting tube 10.

[0026] The bottom end of the extrusion bolt 13 is pressed against and squeezed against the outer wall of the fire hose body 1 to achieve connection with the fire hose body 1 .

[0027] Furthermore, a threaded hole 12 is provided on the outer wall of the external short connecting tube 10 , an extrusion bolt 13 is threadedly connected to the threaded hole 12 , the bottom end of the extrusion bolt 13 abuts against the outer wall of the fire hose body 1 , and the connecting head 14 is fixedly connected to the other side of the outer wall of the middle partition 8 .

[0028] The shape of the connector 14 is not fixed and can be set according to the matching nozzle or water valve.

[0029] Furthermore, the tightening hoop 15 is in contact with the outer wall of the fire hose body 1 , the fixing head 16 is fixedly connected to both ends of the tightening hoop 15 , and the connecting bolt 17 is slidably connected to the hole on the fixing head 16 .

[0030] Among them, the tightening hoop 15 is arranged at the connection between the internal long connecting tube 9 and the fire hose body 1, so that the tightening hoop 15 can assist in strengthening the connection between the fire hose body 1 and the quick-change metal head 7, making it less easy for the quick-change metal head 7 to detach from the fire hose body 1.

[0031] Working principle: When the quick-change metal head 7 needs to be replaced, first use a tool to loosen the extrusion bolt 13 and the connecting bolt 17, so that the bottom end of the extrusion bolt 13 and the tightening hoop 15 loosen the restriction on the fire hose body 1, and then take out the fire hose body 1. When installing the fire hose body 1, the fire hose body 1 can be first sleeved on the outer wall of the internal long connecting tube 9, and then the fire hose body 1 is pushed until it is completely entered into the quick-change metal head 7. At this time, the outer wall of the fire hose body 1 is in contact with the inner wall of the external short connecting tube 10, and then the extrusion bolt 13 is tightened with a tool to let the extrusion bolt 13 release the restriction on the fire hose body 1. The pressure bolt 13 moves downward and squeezes the fire hose body 1 to complete the initial restriction, and then the tightening hoop 15 is placed at the connection between the internal long connecting tube 9 and the fire hose body 1, so that the tightening hoop 15 can assist in strengthening the connection between the fire hose body 1 and the quick-change metal head 7, making it difficult for the quick-change metal head 7 to separate from the fire hose body 1, thereby completing the replacement of the quick-change metal head 7. In the event of a fire hose breakage, the metal joint can be connected to the break to continue working, and the fire hose can continue to be used, which greatly alleviates the troubles of firefighting work and saves a lot of resources.

[0032] 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 flame retardant fire hose, comprising a fire hose body (1), characterized in that: The fire hose body (1) is composed of a water-retaining layer (2), a reinforcing layer (3), a flame-retardant layer (4), a wear-resistant layer (5), and a braided layer (6); the water-retaining layer (2) is arranged at the innermost layer, and the braided layer (6) is arranged at the outermost layer; both ends of the fire hose body (1) are provided with quick-change metal heads (7); and the quick-change metal heads (7) are slidably connected to the fire hose body (1).

2. A flame retardant fire hose according to claim 1, characterized in that: The inner wall of the reinforcing layer (3) is fixedly connected to the outer wall of the water-retaining layer (2), the inner wall of the flame-retardant layer (4) is fixedly connected to the outer wall of the reinforcing layer (3), the inner wall of the wear-resistant layer (5) is fixedly connected to the outer wall of the flame-retardant layer (4), and the inner wall of the braided layer (6) is fixedly connected to the outer wall of the wear-resistant layer (5).

3. The flame retardant fire hose according to claim 1, characterized in that: The quick-change metal head (7) comprises a middle partition (8), an internal long connecting tube (9), an external short connecting tube (10), evenly distributed reinforcing ribs (11), threaded holes (12), extrusion bolts (13), a connecting head (14), a tightening hoop (15), a fixing head (16), and connecting bolts (17); the middle partition (8) is arranged in a circular ring shape, and the internal long connecting tube (9) is fixedly connected to the inner wall of the middle partition (8).

4. A flame retardant fire hose according to claim 3, characterized in that: The external short connection tube (10) is fixedly connected to one side of the outer wall of the middle partition (8); the reinforcing rib (11) is arranged in a triangular shape; one side of the outer wall of the reinforcing rib (11) is fixedly connected to the outer wall of the middle partition (8); and the other side of the outer wall of the reinforcing rib (11) is fixedly connected to the outer wall of the external short connection tube (10).

5. The flame retardant fire hose according to claim 4, characterized in that: The threaded hole (12) is arranged on the outer wall of the external short connecting tube (10), the extrusion bolt (13) is threadedly connected to the threaded hole (12), the bottom end of the extrusion bolt (13) is against the outer wall of the fire hose body (1), and the connecting head (14) is fixedly connected to the other side of the outer wall of the middle partition (8).

6. The flame retardant fire hose according to claim 3, characterized in that: The tightening hoop (15) contacts the outer wall of the fire hose body (1), the fixing head (16) is fixedly connected to both ends of the tightening hoop (15), and the connecting bolt (17) is slidably connected to the hole on the fixing head (16).

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