Fire hose

Abstract

The application discloses a fire hose, and relates to the field of fire fighting, which comprises at least two groups of fire hoses, each group of fire hoses comprising a water pipe, a first connecting head, a second connecting head and at least two connecting assemblies, each connecting assembly comprising a lock tongue, a lock channel, a detachable guide plate and a rubber strip, the lock tongue being elastic, the lock channel being arranged at the second end of the second connecting head, the guide plate being installed at the first end of the lock channel and used for guiding the lock tongue to be inserted into the lock channel; through the structural design of the connecting assembly, when connecting the adjacent two groups of fire hoses, the lock tongue of the first connecting head only needs to be inserted into the lock channel of the second connecting head, and the operation is simple; when the adjacent two groups of fire hoses are connected, the second end of the lock tongue is in extrusion contact with the guide plate and the rubber strip on both sides, respectively, and the included angle between the second end of the lock tongue and the central axis of the second connecting head is greater than zero, so that the problem that the two water hoses are separated due to the rotation of the traditional fire hose not being in place does not exist.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of fire fighting, in particular to a fire hose. BACKGROUND

[0002] Fire hose is a flexible pipe used to transport high-pressure water or foam fire-retardant liquid. The traditional fire hose is lined with rubber and wrapped with linen braid. Advanced fire hose is made of polyurethane and other polymer materials. Both ends of the fire hose have metal connectors, which can be connected to another hose to extend the distance or connected to a nozzle to increase the liquid injection pressure. When the two ends of the fire hose are connected, the locking tongues of the two metal heads need to be aligned and inserted, and then need to be tightened clockwise to be completely connected. During connection, the connection may not be tight, and after connection, if not paid attention to use, the rotation of the connection head may cause the connection head to separate, and when separated after use, the two connection heads need to be held and then rotated counterclockwise, which is complicated to operate. SUMMARY

[0003] The purpose of the present application is to design a fire hose to solve the above problems.

[0004] The present application achieves the above-mentioned purpose by the following technical solutions:

[0005] A fire hose, comprising at least two groups of fire hoses, each group of fire hoses comprising:

[0006] a water pipe belt;

[0007] a first connector; the first end of the first connector is fixedly connected to the first end of the water pipe belt;

[0008] a second connector; the first end of the second connector is fixedly connected to the second end of the water pipe belt;

[0009] at least two connecting assemblies, the connecting assemblies being used for connecting and fixing the first connector and the second connector of the adjacent two water pipe belts, each connecting assembly comprising a locking tongue, a locking channel, a detachable guide plate and a rubber strip, the first end of the locking tongue being fixedly connected to the second end of the first connector, the locking tongue having elasticity, the locking channel being arranged at the second end of the second connector, the guide plate being installed at the first end of the locking channel, and the rubber strip being fixedly installed at the first end of the locking channel, when the adjacent two groups of fire hoses are connected, the guide plate being used for guiding the locking tongue to be inserted into the locking channel, the second end of the locking tongue being in contact with the guide plate and the rubber strip on both sides, and the included angle between the second end of the locking tongue and the central axis of the second connector being greater than zero.

[0010] The beneficial effect of the present application is that: through the structural design of the connecting assembly, when connecting the adjacent two groups of fire hoses, only the locking tongue of the first connecting head is inserted into the locking channel of the second connecting head, which is simple to operate, and since the second end of the locking tongue is in extrusion contact with the guide plate and the rubber strip on both sides when the adjacent two groups of fire hoses are connected, and the included angle between the second end of the locking tongue and the center axis of the second connecting head is greater than zero, there is no problem of two hoses being separated due to rotation out of position of the traditional fire hose. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 is a three-dimensional structural diagram of a fire hose of the present application Figure 1 ;

[0012] Figure 2 is a three-dimensional structural diagram of a fire hose of the present application Figure 2 ;

[0013] Figure 3 is a diagram of the internal structure of a second connecting head in a fire hose of the present application

[0014] Figure 4 is a diagram of the internal structure of a fire hose of the present application Figure 1 ;

[0015] Figure 5 is a diagram of the internal structure of a fire hose of the present application Figure 2 ;

[0016] Among them, the corresponding reference signs are:

[0017] 1 - water pipe belt, 2 - first connecting head, 3 - second connecting head, 4 - locking tongue, 5 - locking channel, 7 - rubber strip, 8 - anti-skid tooth, 9 - disassembly channel, 10 - leaf spring, 11 - disassembly push ring, 12 - push channel, 13 - disassembly rod, 14 - push rod, 15 - four-prism structure, 16 - limiting plate. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0019] The following detailed description of embodiments of the application in the drawings provided is not intended to limit the scope of the application as claimed, but merely represents selected embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the application.

[0020] It should be noted that similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0021] In the description of the application, it should be understood that the terms "upper", "lower", "inner", "outer", "left", "right" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly understood by those skilled in the art, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application.

[0022] In addition, the terms "first", "second" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0023] In the description of the application, it should also be noted that unless otherwise explicitly specified and limited, the terms "provided", "connected" and the like should be broadly understood, for example, "connected" can be fixedly connected, or detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0024] The specific embodiments of the application will be described in detail below with reference to the accompanying drawings.

[0025] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , a fire hose includes at least two groups of fire hoses, each group of fire hoses including:

[0026] a water pipe belt 1;

[0027] a first connector 2, a first end of the first connector 2 is fixedly connected to a first end of the water pipe belt 1;

[0028] Second connector 3; the first end of the second connector 3 is fixedly connected to the second end of the water pipe 1;

[0029] At least two connecting components are provided for connecting and fixing the first connector 2 and the second connector 3 of two adjacent water hoses 1. Each connecting component includes a locking tongue 4, a locking channel 5, a detachable guide plate, and a rubber strip 7. The first end of the locking tongue 4 is fixedly connected to the second end of the first connector 2. The locking tongue 4 is elastic. The locking channel 5 is located at the second end of the second connector 3. The guide plate is installed at the first end of the locking channel 5. The rubber strip 7 is fixedly installed at the first end of the locking channel 5. When two adjacent sets of fire hoses are connected, the guide plate is used to guide the locking tongue 4 to insert into the locking channel 5. The two sides of the second end of the locking tongue 4 are in contact with the guide plate and the rubber strip 7 respectively. The included angle between the second end of the locking tongue 4 and the central axis of the second connector 3 is greater than zero.

[0030] The locking channels 5 on the second connector 3 are arranged in a circular array at the second end of the second connector 3 with the central axis of the second connector 3 as the center.

[0031] The second end of the locking tongue 4 is provided with anti-slip teeth 8 on the side away from the guide plate, and the anti-slip teeth 8 are in contact with the rubber strip 7 by compression.

[0032] The locking tongue 4 has a "V" shaped structure. Both sides of the guide plate are guiding ends. Rubber strips 7 are installed on both sides of the first end of the locking channel 5. Tension springs are installed at both ends of the second end of the locking tongue 4. The tension springs are always in a stretched state.

[0033] There are two connecting components. Each fire hose also includes two disassembly parts. Disassembly channels 9 are provided between the two sides of the two locking channels 5. One disassembly part is installed in one disassembly channel 9. The guide plate is a leaf spring 10. The leaf spring 10 has an arc-shaped structure. The elastic force at both ends of the leaf spring 10 is always directed away from the center of the leaf spring 10. The disassembly ends of one disassembly part act on the first ends of the two leaf springs 10 respectively. When disassembling the leaf spring 10, the force generated by the disassembly end on the leaf spring 10 is opposite to the direction of the elastic force.

[0034] The arc of the leaf spring 10 is no greater than 180°, and the elastic modulus of the leaf spring 10 is greater than the elastic modulus of the locking tongue 4.

[0035] Each fire hose set also includes a disassembly push ring 11, which is provided with a pushing channel 12. The outer side wall of the disassembly push ring 11 is inclined, and the outer side wall of the second connector 3 is provided with a support step. A first spring is fixedly installed on the inner side wall of the disassembly push ring 11, and the other end of the first spring is in contact with the support step. The first spring is a compression spring, and the spring force of the first spring on the disassembly push ring 11 is directed away from the first connector 2. Each disassembly component includes:

[0036] Two dismounting rods 13 are installed in the dismounting channel 9, and the first ends of the two dismounting rods 13 are in extrusion contact with one end of the two leaf springs 10 respectively.

[0037] A pushing rod 14 is provided with a pushing rod 15 at the first end, and the pushing rod 14 is movably installed in the mounting hole of the second connecting head 3, and the first end and the second end of the pushing rod 14 are located in the dismounting channel 9 of the second connecting head 3 and outside the second connecting head 3 respectively, and the second ends of the two dismounting rods are in extrusion contact with the side surface of the pushing rod 15 of the pushing rod 14.

[0038] A compression spring is in extrusion contact with the conical structure and the second connecting head 3 at both ends.

[0039] A limiting plate 16 is fixedly installed at the second end of the pushing rod 14, and the side surface close to the pushing rod 14 of the limiting plate 16 is a bevel, and the bevel of the dismounting push ring 11 is in extrusion contact with the bevel of the limiting plate 16.

[0040] The first spring, the supporting step and the compression spring are not shown in the figure.

[0041] The working principle of the fire hose is as follows:

[0042] When the fire hose needs to be used, the lock tongue 4 of the first connecting head 2 of the water pipe belt 1 is aligned with the lock channel 5 of the second connecting head 3 of the adjacent water pipe belt 1, and then is inserted into the lock channel 5, when the lock tongue 4 is in contact with the leaf spring 10, the second end of the lock tongue 4 is deformed and bent towards both sides under the action of the spring leaf, when the insertion is in place, the second end of the lock tongue 4 is located between the leaf spring 10 and the rubber strip 7, and the second end of the lock tongue 4 is in extrusion contact with the leaf spring 10 and the rubber strip 7 on both sides respectively, and the anti-skid teeth 8 are extruded to deform the rubber strip 7, as shown in Figure 5 The installed fire hose is tightly connected by the rubber strip 7, the lock tongue 4, the anti-skid teeth 8 and the leaf spring 10, and the connection operation is simple, which is more in line with the requirements of simple and rapid connection of the fire hose.

[0043] After the use is completed, the disassembling push ring 11 is applied to the first connector 2, so that the disassembling push ring 11 is moved towards the first connector 2, and the first spring is further compressed to store energy, the limiting plate 16 loses the action force of the disassembling push ring 11 towards the direction away from the central axis of the second connector 3, under the compression of the spring, the limiting plate 16 and the push rod 14 are moved towards the direction close to the central axis of the second connector 3, the push rod 15 extrudes the two disassembling rods 13 to move towards the direction close to the sheet spring 10, the two ends of the sheet spring 10 are extruded and deformed to the middle, the distance between the sheet spring 10 and the rubber strip 7 is increased, and the extrusion force between the lock tongue 4 and the sheet spring 10 is reduced, at this time, the second end of the lock tongue 4 is restored to the elastic deformation, and the tension spring is restored to the elastic deformation, so that the two ends of the second end of the lock tongue 4 are folded to the middle, at this time, the first connector 2 can be moved.

[0044] After the two groups of fire-fighting belts are separated, the disassembling push ring 11 is removed to the first connector 2, the disassembling push ring 11 is moved towards the water pipe belt 1 under the action of the first spring, and the disassembling rod 13 is moved away from the sheet spring 10 under the action of the elastic deformation of the sheet spring 10, the limiting plate 16 and the push rod 14 are moved away from the central axis of the second connector 3 under the action of the disassembling push ring 11 and the disassembling rod 13, and the second connector 3 is restored to the state before use.

[0045] The technical scheme of the present application is not limited to the above specific embodiments, and any technical deformation according to the technical scheme of the present application falls within the protection scope of the present application.

Claims

1. A fire hose, characterized in that The fire-fighting belt comprises at least two groups of fire-fighting belts, each group of fire-fighting belts comprising: a water pipe belt; a first connecting head, a first end of the first connecting head being fixedly connected with a first end of the water pipe belt; a second connecting head, a first end of the second connecting head being fixedly connected with a second end of the water pipe belt; at least two connecting assemblies, the connecting assemblies being used for connecting and fixing the first connecting head and the second connecting head of two adjacent water pipe belts, each connecting assembly comprising a lock tongue, a lock channel, a detachable guide plate and a rubber strip, a first end of the lock tongue being fixedly connected with a second end of the first connecting head, the lock tongue being elastic, the lock channel being arranged at a second end of the second connecting head, the guide plate being installed at a first end of the lock channel, the rubber strip being fixedly installed at the first end of the lock channel, when two adjacent groups of fire-fighting belts are connected, the guide plate is used for guiding the lock tongue to be inserted into the lock channel, a second end of the lock tongue is in extrusion contact with the guide plate and the rubber strip on both sides of the second end, and an included angle between the second end of the lock tongue and a central axis of the second connecting head is greater than zero; the lock tongue is in a "person" shape structure, both sides of the guide plate are guide action ends, and both sides of the first end of the lock channel are provided with the rubber strip; the number of the connecting assemblies is two, each group of fire-fighting belts further comprises two disassembly pieces, disassembly channels are arranged between both sides of the two lock channels, one disassembly piece is installed in one disassembly channel, the guide plate is a leaf spring, the leaf spring is in an arc structure, elastic forces of both ends of the leaf spring are always directed away from a center of the leaf spring, disassembly action ends of both ends of the one disassembly piece are respectively applied to first ends of the two leaf springs, and when the leaf spring is disassembled, the disassembly action ends generate an action force on the leaf spring, the action force being opposite to the elastic force in direction.

2. A fire hose according to claim 1, wherein The lock channels on the second connecting head are arranged in a circular array at the second end of the second connecting head with the central axis of the second connecting head as a center.

3. The fire hose of claim 1, wherein A side of the second end of the lock tongue, which is away from the guide plate, is provided with an anti-skid tooth, and the anti-skid tooth is in extrusion contact with the rubber strip.

4. The fire hose of claim 1, wherein The arc of the leaf spring is not greater than 180°.

5. The fire hose of claim 1, wherein Each group of fire-fighting belts further comprises a disassembly pushing ring, the disassembly pushing ring is provided with a pushing channel, an outer side wall of the disassembly pushing ring is in an inclined surface, and each disassembly piece comprises: two disassembly rods, the two disassembly rods being installed in the disassembly channel, first ends of the two disassembly rods being in extrusion contact with one end of the two leaf springs, respectively; a pushing rod, a first end of the pushing rod being in a quadrangular frustum structure, the second connecting head is provided with a mounting hole, the pushing rod is movably installed in the mounting hole, the first end and a second end of the pushing rod are located in the disassembly channel of the second connecting head and outside the second connecting head, respectively, and second ends of the two disassembly rods are in extrusion contact with a side surface of the quadrangular frustum structure of the pushing rod, respectively; a compression spring, both ends of the compression spring being in extrusion contact with the conical structure and the second connecting head, respectively; a limiting plate, the limiting plate being fixedly installed at the second end of the pushing rod, a side of the limiting plate, which is close to the pushing rod, being in an inclined surface, and the inclined surface of the disassembly pushing ring is in extrusion contact with the inclined surface of the limiting plate.

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