Compression-resistant and leakage-proof fire hose

Abstract

The utility model provides a compression-resistant and leakage-proof fire hose which comprises a hose body, the water hose comprises a water hose body and further comprises a plurality of supporting rings arranged in the inner diameter of the water hose body in a sliding mode, a plurality of wear-resisting rings arranged on the outer diameter of the water hose body in a sleeving mode, at least three threaded holes annularly formed in the wear-resisting rings at equal intervals, and threaded rods connected to the wear-resisting rings in a threaded mode and located in the threaded holes. The extrusion block is arranged on the threaded rod, the extrusion block is arranged at the end, close to the water hose body, of the threaded rod, the number of the supporting rings is the same as that of the wear-resisting rings, and the mounting positions of the supporting rings correspond to that of the wear-resisting rings.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire hose technical field, concretely relates to a kind of fire hose of pressure resistance leakproof. BACKGROUND

[0002] Fire hose is used to transport high-pressure water or foam and other fire-retardant liquid hose. Traditional fire hose is lined with rubber, and the outer surface is wrapped with linen braid. Advanced fire hose is made of polyurethane and other polymer materials. Both ends of fire hose have metal fittings, which can be connected to another hose to extend the distance or connected to a nozzle to increase the liquid injection pressure.

[0003] However, the current fire hose is often laid or pulled on the ground in a dragging manner during use, so that the surface of the fire hose directly rubs with the ground, which can easily cause wear on the surface of the fire hose, and long-term use can cause leakage at the worn parts. UTILITY MODEL CONTENT

[0004] The utility model aims at the defects and deficiencies of prior art, and provides a kind of fire hose of pressure resistance leakproof.

[0005] To achieve the above object, the utility model adopts the following technical scheme: a kind of fire hose of pressure resistance leakproof, including water hose body, still including the support ring of being slidably arranged in the inner diameter of water hose body, the wear ring of being set on the outer diameter of water hose body, at least three threaded holes being annularly equidistantly opened on each wear ring, threaded rod being screw connected in each threaded hole on wear ring, extrusion block being arranged on threaded rod, extrusion block is arranged on threaded rod and is close to the end of water hose body, the setting number of support ring and wear ring is same, and the installation position of support ring and wear ring corresponds.

[0006] Further improvement is that: the corner of support ring is provided with chamfer surface, and the support ring is polyamide ring, polystyrene ring or polyformaldehyde ring.

[0007] Further improvement is that: the wear ring includes ring body and wear layer arranged on the surface of the ring body, and each threaded hole is opened on the ring body and the wear layer.

[0008] Further improvement is that: the wear layer is nitrile rubber layer, natural rubber layer or chlorobutyl rubber layer.

[0009] Further improvement is that: the extrusion block is rubber plate.

[0010] Further improvement is that: the upper end surface of the threaded rod is provided with a cross hole or a hexagonal hole.

[0011] Further improvement is that the support ring is provided with a metal magnetic layer, the metal magnetic layer is fixedly arranged on the support ring, the wear-resistant ring is provided with a magnet layer, and the metal magnetic layer is a metal iron ring, a metal cobalt ring or a metal nickel ring.

[0012] After the above technical scheme is adopted, the fire hose is installed or used, the wear-resistant ring and the support ring are arranged on the outer diameter of the water hose body and in the inner diameter respectively, the position of the support ring in the water hose body is adjusted, the support ring is used to support the inner diameter of the water hose body, the wear-resistant ring is then moved to the position of the support ring, and then the threaded rod is rotated in the threaded hole through the tool, until the pressing block is pressed against the support ring, so that the wear-resistant ring is fixed on the outer diameter of the water hose body, each support ring and wear-resistant ring is installed in the same way, and the wear-resistant ring is installed on the water hose body in a segmented manner, so that each wear-resistant ring has a certain spacing on the fire hose (the spacing is the position at which the water hose body is separated from the ground when each wear-resistant ring is in contact with the ground), when the fire hose is laid or pulled on the ground in a dragging manner, the wear-resistant ring is in contact with the ground, the surface of the fire hose is not directly rubbed with the ground, the surface of the fire hose is not easily abraded, and the fire hose is not easily leaked after long-term use.

[0013] Further effect: the support ring is arranged to support the inner diameter of the water hose body, prevent the water hose body from being flat when no water flow is conveyed, prevent the wear-resistant ring from being separated from the water hose body, and adjust the position of the support ring and the wear-resistant ring on the water hose body, so that the support ring and the wear-resistant ring are installed at the leakage position and are pressed on the leakage position by the pressing block, thereby achieving the effect of preventing leakage.

[0014] Further effect: when the wear-resistant ring is moved to the position of the support ring, the metal magnetic layer and the magnet layer are adsorbed, so that the installer knows that the position of the wear-resistant ring and the support ring has been matched, and the threaded rod can be controlled at this time, so that the pressing block is pressed against the support ring, and the wear-resistant ring and the support ring are installed, thereby reducing the phenomenon of installation skew.

[0015] Further effect: the chamfered surface can reduce the edge of the support ring when the water hose body is pulled or dragged to produce a bend. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0017] Figure 1 is a structure diagram of the water belt body and the wear-resistant layer in the present application;

[0018] Figure 2 is a sectional view of the water belt body, the supporting ring and the wear-resistant ring in the present application;

[0019] Figure 3 is a side view sectional view of the water belt body, the supporting ring and the wear-resistant ring in the present application;

[0020] Figure 4 is an enlarged view of A part corresponding to Figure 2 .

[0021] The figure mark explanation: water belt body 1, supporting ring 2, threaded hole 4, threaded rod 5, extrusion block 6, chamfer surface 7, ring body 8, wear-resistant layer 9, metal magnetic layer 10, magnet layer 11. DETAILED DESCRIPTION

[0022] The present application will be further described in combination with the drawings and specific embodiments.

[0023] Referring to Figures 1 to 4 , the technical solution adopted in the present embodiment is: a pressure-resistant and leakage-proof fire-fighting water belt, comprising a water belt body 1, further comprising a plurality of supporting rings 2 slidably arranged in the inner diameter of the water belt body 1, a plurality of wear-resistant rings sleeved on the outer diameter of the water belt body 1, at least three threaded holes 4 annularly and equidistantly arranged on each of the wear-resistant rings, threaded rods 5 threadedly connected to the wear-resistant rings and located in the threaded holes 4, and extrusion blocks 6 arranged on the threaded rods 5, wherein the extrusion blocks 6 are arranged on the threaded rods 5 close to the water belt body 1, the number of the supporting rings 2 is the same as that of the wear-resistant rings, and the mounting positions of the supporting rings 2 and the wear-resistant rings correspond to each other.

[0024] The outer diameter of the supporting ring 2 is gap-fitted with the inner diameter of the water belt body 1. Each of the supporting rings 2 is equidistantly arranged on the water belt body 1. The more the number of the threaded holes 4, the threaded rods 5 and the extrusion blocks 6, the better the fixing effect of the wear-resistant rings on the water belt body 1.

[0025] The support ring 2 is provided with a chamfer surface 7 at the corner, and the support ring 2 is a polyamide ring or a polystyrene ring or a polyformaldehyde ring. As a high-performance engineering plastic, polyamide (PA) has excellent compressive strength and stability. In the compression stress state, the polyamide material can withstand a large compression load without damage, showing high compressive strength. Polyamide performs well in waterproofing, moisture permeability, air permeability, and windproofness. Polystyrene (PS) has high stiffness and deformation resistance, mainly due to its regular molecular chain structure and the rigidity of the benzene ring. Polyformaldehyde is a highly crystalline polymer with hardness, strength and rigidity similar to metal, and is the material with the closest mechanical properties to metal among engineering plastics.

[0026] The wear-resistant ring includes a ring body 8 and a wear-resistant layer 9 arranged on the surface of the ring body 8, and each threaded hole 4 is arranged on the ring body 8 and the wear-resistant layer 9. The inner diameter of the ring body 8 and the outer diameter of the hose body 1 are gap-fitted, and the ring body 8 can slide on the hose body 1.

[0027] The wear-resistant layer 9 is a butadiene-acrylonitrile rubber layer or a natural rubber layer or a chloroprene rubber layer. As shown in Figure 2 and 4 The wear-resistant layer 9 is fixedly installed on the ring body 8 by sleeving, embedding or adhesive bonding. Butadiene-acrylonitrile rubber is made of butadiene and acrylonitrile copolymer, has good oil resistance and wear resistance, and is suitable for manufacturing oil seals, fuel pipes and chemical pipelines. Natural rubber is extracted from rubber trees and has excellent elasticity, wear resistance and tear strength, and is widely used in the manufacture of tires, soles and various gaskets. Chloroprene rubber has excellent fire resistance, ozone resistance and wear resistance, and is often used to manufacture protective clothing, cable sheath and automobile parts.

[0028] The extrusion block 6 is a rubber plate.

[0029] The upper end surface of the threaded rod 5 is provided with a cross hole or a hexagonal hole.

[0030] The support ring 2 is provided with a metal magnetic layer 10, and the metal magnetic layer 10 is fixedly arranged on the support ring 2. The wear-resistant ring is provided with a magnet layer 11, and the metal magnetic layer 10 is a metal iron ring or a metal cobalt ring or a metal nickel ring.

[0031] The threaded rod 5 is a nylon threaded rod 5 or an aluminum alloy threaded rod 5, which can reduce the influence of the metal material threaded rod 5 on the magnet layer 11. The metal magnetic layer 10 is fixedly arranged on the support ring 2 by embedding or adhesive bonding and the like. The magnet layer 11 is arranged on the left side or the right side of the threaded hole 4, or two magnet layers 11 are symmetrically arranged on the left and right sides of the threaded hole 4, and the number and arrangement position of the metal magnetic layer 10 correspond to the number and position of the magnet layer 11. The metal magnetic layer 10 and the magnet layer 11 can be in a sheet shape or an arc shape or a ring shape, or the metal magnetic layer 10 can be arranged in a block shape and the magnet layer 11 can be arranged in a ring shape or an arc shape, so as to facilitate the rotation of the wear-resistant ring on the water hose body 1, thereby facilitating the corresponding of the extrusion block 6 and the leaking position when it is necessary to block the leaking position. The magnet layer 11 is arranged on the ring body 8.

[0032] The working principle of the utility model is as follows: before the fire hose is installed or used, the wear-resistant ring and the support ring 2 are arranged on the outer diameter of the water hose body 1 and in the inner diameter respectively, the position of the support ring 2 in the water hose body 1 is adjusted, the support ring 2 is used to expand the inner diameter of the water hose body 1, then the wear-resistant ring is moved to the position of the support ring 2, and then each threaded rod 5 is rotated in the threaded hole 4 by means of a tool, until the extrusion block 6 is pressed against the position of the support ring 2, so as to fix the wear-resistant ring on the outer diameter of the water hose body 1, each support ring 2 and wear-resistant ring are arranged in the same way, so as to be arranged on the water hose body 1 in a segmented manner, and each wear-resistant ring has a certain spacing on the fire hose (the spacing is the position at which the water hose body 1 is separated from the ground when each wear-resistant ring is in contact with the ground), when the fire hose is arranged or pulled on the ground in a dragging manner, the wear-resistant ring is in contact with the ground, so that the surface of the fire hose is not directly rubbed with the ground, the surface of the fire hose is not easily abraded, and the fire hose is not easily leaked after long-term use.

[0033] The support ring 2 is arranged to expand the inner diameter of the water hose body 1, so as to prevent the water hose body 1 from being flat when no water flow is conveyed, thereby affecting the installation of the wear-resistant ring, the wear-resistant ring is pressed against the support ring 2 and is not easily separated from the water hose body 1, and the position of the wear-resistant ring and the support ring 2 on the water hose body 1 can be adjusted, when the surface of the water hose body 1 is leaked, the position of the support ring 2 and the wear-resistant ring is only moved and arranged at the leaking position, and the extrusion block 6 is pressed against the leaking position, so as to achieve the effect of preventing leakage.

[0034] When the wear-resistant ring is moved to the position of the support ring 2, the metal magnetic layer 10 and the magnet layer 11 are adsorbed, so that the installer can know that the position of the wear-resistant ring and the support ring 2 has been matched, at this time, the threaded rod 5 can be controlled, the extrusion block 6 is pressed against the support ring 2, the wear-resistant ring and the support ring 2 are arranged, and the phenomenon of installation skew is reduced.

[0035] The chamfered surface 7 can reduce the corner of the support ring 2 to scratch the inner diameter surface of the water hose body 1 when the water hose body 1 is pulled or dragged to generate a turn.

[0036] The utility model discloses a kind of structures of products, the model of each element is not the content of the utility model protection, also known technology, as long as the element that can realize the above-mentioned function of the utility model on market can be used as a kind of anti-pressure leakproof fire hose selection application.Therefore the model of element and the like parameters are not described in detail in the utility model.The contribution of the utility model is that each element is combined scientifically together.

[0037] The basic principle and main features of the utility model and its advantages are shown and described above, and those skilled in the art should understand that the utility model is not limited to the above examples, and the above examples and descriptions are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can also have various changes and improvements. These changes and improvements fall within the scope of the claimed utility model, and the scope of protection of the utility model is defined by the attached claims and their equivalents. The utility model is not described in detail, which is known to those skilled in the art.

Claims

1. A pressure resistant, leak proof fire hose comprising a hose body, characterized in that: The support ring is provided with a chamfered surface at the corner, and the support ring is a polyamide ring, a polystyrene ring or a polyformaldehyde ring.

2. The pressure-resistant and leakage-proof fire hose according to claim 1, characterized in that: The wear-resistant ring comprises a ring body and a wear-resistant layer arranged on the surface of the ring body, and each threaded hole is arranged on the ring body and the wear-resistant layer.

3. The pressure-resistant and leakage-proof fire hose according to claim 1, characterized in that: The wear-resistant layer is a butyronitrile rubber layer, a natural rubber layer or a chloroprene rubber layer.

4. The pressure-resistant and leakage-proof fire hose according to claim 3, characterized in that: The extrusion block is a rubber plate.

5. The pressure-resistant and leakage-proof fire hose according to claim 1, characterized in that: The upper end surface of the threaded rod is provided with a cross hole or a hexagonal hole.

6. The pressure-resistant and leakage-proof fire hose according to claim 1, characterized in that: The support ring is provided with a metal magnetic layer, and the metal magnetic layer is fixedly arranged on the support ring.

7. The pressure-resistant and leakage-proof fire hose according to claim 1, characterized in that: The wear-resistant ring is provided with a magnet layer, and the metal magnetic layer is a metal iron ring, a metal cobalt ring or a metal nickel ring.

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