Water pressure detection device for fire hose

Abstract

The utility model discloses a fire hose water pressure detection device which comprises a communicating pipe arranged between fire hoses in a butt joint mode, two connecting structures are symmetrically arranged at the two ends of the communicating pipe, a butt joint pipe is arranged in the middle of the communicating pipe, and the butt joint pipe is in threaded connection with a water pressure detector. The connecting structure comprises a clamping cylinder integrally arranged at the end of the communicating pipe, the clamping cylinder comprises an outer cylinder and an inner cylinder which are integrally arranged, the outer cylinder is rotationally connected with a rotating nut, the rotating nut is in threaded connection with the fire hose, a plurality of hinge pieces are arranged on the side face of the inner cylinder in an array mode, and each hinge piece is connected with an arc-shaped plate. By screwing a rotating nut, the end part of the fire-fighting water pipe gradually further extrudes the sealing gasket into the annular assembly groove until the outer wall of the sealing gasket is tightly attached to the inner side surface of the annular assembly groove, and at the moment, one end of the sealing gasket straightens the arc-shaped plate, so that the inner wall of the communicating pipe is tightly attached to the outer wall of the fire-fighting water pipe, and a gap is eliminated; the blocking effect on water flow is effectively avoided, and the sealing performance is better.

Description

Technical Field

[0001] The utility model relates to the technical field of fire-fighting water pipe detection equipment, in particular to a fire-fighting water pipe water pressure detection device. Background Art

[0002] Fire hose refers to a pipe used for firefighting, connecting firefighting equipment, and conveying water for firefighting. During the use of fire hose, the water pressure inside the pipe needs to be observed through a water pressure detection device. The patent number is "CN217605169U", and the patent name is "A pipeline water pressure detection device for municipal infrastructure construction". It is a utility model patent, including a water pressure gauge body, a connecting pipe is installed below the water pressure gauge body, a connecting sleeve is installed through the upper surface of the connecting pipe, a cleaning component is provided at the left end of the connecting pipe, and the cleaning component includes a cleaning seat, a water inlet pipe is installed through the left surface of the cleaning seat, and a protective component is provided in front of the water pressure gauge body.

[0003] However, the above-mentioned fire hose water pressure detection device still has certain disadvantages in certain usage situations: it is difficult to ensure the sealing effect of the above-mentioned fire hose water pressure detection device when docking, and it is inconvenient when docking. Many connecting pipe ends adopt a closing design. Such a structure makes the connecting pipe end and the fire hose not fit tightly, forming a gap, which forms a blocking effect on the water flow, and water seepage is prone to occur at the joint after long-term use. Therefore, a fire hose water pressure detection device is proposed to solve the above-mentioned defects. Summary of the invention

[0004] The utility model overcomes the shortcomings of the prior art and provides a fire-fighting water pipe water pressure detection device.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a fire water pipe water pressure detection device, comprising: a connecting pipe dockingly arranged between the fire water pipes, two connecting structures symmetrically arranged at both ends of the connecting pipe, a connecting pipe is arranged in the middle part of the connecting pipe, and the connecting pipe is threadedly connected to a water pressure detector; the connecting structure comprises: a clamping cylinder integrally arranged at the end of the connecting pipe, the clamping cylinder comprises: an outer cylinder and an inner cylinder integrally arranged, the outer cylinder is rotatably connected to a rotating nut, the rotating nut is threadedly connected to the fire water pipe, and a plurality of hinges are arranged in an array on the side of the inner cylinder, and each of the hinges is connected to an arc plate.

[0006] In a preferred embodiment of the utility model, an annular assembly groove is formed between the outer cylinder and the inner cylinder, and a sealing gasket is arranged in the annular assembly groove.

[0007] In a preferred embodiment of the utility model, a strip groove is arranged on the outer side surface of the sealing gasket, and a strip protrusion is arranged on the inner wall of the outer cylinder, and the strip protrusion is slidably connected with the strip groove.

[0008] In a preferred embodiment of the present utility model, a plurality of slits are provided at the end of the sealing gasket, and the inner side surface of the sealing gasket is in close contact with the outer side surface of the arc-shaped plate.

[0009] In a preferred embodiment of the present utility model, an annular protrusion is provided on the inner side surface of one end of the sealing gasket, and the annular protrusions are respectively clamped with the arc-shaped plates.

[0010] In a preferred embodiment of the present utility model, an annular clamping groove is provided at the end of the clamping cylinder, and an annular clamping block is integrally provided on the side surface of the rotating nut, and the annular clamping block is matched with the annular clamping groove.

[0011] In a preferred embodiment of the present utility model, a first water stop valve and a second water stop valve are symmetrically provided on both sides of the water pressure detector.

[0012] The present utility model solves the defects existing in the background technology, and the present utility model has the following beneficial effects:

[0013] (1) When the fire hose and the connecting pipe are butt-jointed and installed in the present utility model, by screwing the rotating nut, the end of the fire hose gradually enters the annular assembly groove and gradually presses against the sealing gasket. The end of the fire hose further squeezes the sealing gasket into the annular assembly groove until the outer wall of the sealing gasket is in close contact with the inner side surface of the annular assembly groove. At this time, one end of the sealing gasket straightens the arc-shaped plate, so that the inner wall of the connecting pipe is in close contact with the outer wall of the fire hose, eliminating the gap, effectively avoiding blocking the water flow, and having better sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The following further describes the present utility model in conjunction with the drawings and embodiments;

[0015] Figure 1 is a three-dimensional structure diagram of a preferred embodiment of the present utility model;

[0016] Figure 2 is a cross-sectional schematic diagram of a preferred embodiment of the present utility model;

[0017] Figure 3 is a partial schematic diagram of the end of the connecting pipe of a preferred embodiment of the present utility model after hiding the rotating nut;

[0018] Figure 4 is Figure 2 an enlarged schematic diagram of part A in

[0019] Specifically, 1. Fire hose; 2. Connecting pipe; 3. Docking pipe; 4. Water pressure detector; 5. Clamping cylinder; 501. Outer cylinder; 502. Inner cylinder; 6. First water stop valve; 7. Second water stop valve; 8. Rotating nut; 9. Arc plate; 10. Annular assembly groove; 11. Sealing gasket; 12. Striped protrusion; 13. Notch; 14. Annular protrusion; 15. Annular clamping block; 16. Annular clamping groove. Detailed implementation manners

[0020] Now, the present utility model will be further described in detail with reference to the accompanying drawings and embodiments. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0021] As Figure 1 、 Figure 2 and Figure 4 shown, a fire hose water pressure detection device includes: a connecting pipe 2 docked between fire hoses 1. Two connection structures are symmetrically arranged at both ends of the connecting pipe 2. The connection structure includes: a clamping cylinder 5 integrally arranged at the end of the connecting pipe 2. The clamping cylinder 5 includes: an outer cylinder 501 and an inner cylinder 502 integrally arranged. The outer cylinder 501 is rotatably connected to a rotating nut 8. The rotating nut 8 is threadedly connected to the fire hose 1. An annular clamping groove 16 is arranged at the end of the clamping cylinder 5. An annular clamping block 15 is integrally arranged on the side of the rotating nut 8. The annular clamping block 15 cooperates with the annular clamping groove 16. A plurality of hinge members are arranged in an array on the side of the inner cylinder 502. Each hinge member is connected to an arc plate 9. An annular assembly groove 10 is formed between the outer cylinder 501 and the inner cylinder 502. A sealing gasket 11 is arranged in the annular assembly groove 10. When the fire hose 1 and the connecting pipe 2 are docked and installed, by screwing the rotating nut 8, the end of the fire hose 1 gradually enters the annular assembly groove 10 and gradually presses against the sealing gasket 11. The end of the fire hose 1 further squeezes the sealing gasket 11 into the annular assembly groove 10 until the outer wall of the sealing gasket 11 is closely attached to the inner side surface of the annular assembly groove 10, sealing the joint between the connecting pipe 2 and the fire hose 1.

[0022] As Figure 3 shown, in a preferred embodiment of the present utility model, an annular protrusion 14 is arranged on the inner side surface of one end of the sealing gasket 11, and the annular protrusion 14 corresponds to the arc plate 9 for clamping respectively. At this time, one end of the sealing gasket 11 straightens the arc plate 9, so that the inner wall of the connecting pipe 2 is closely attached to the outer wall of the fire hose 1, eliminating the gap, effectively avoiding the blocking effect on the water flow, and having better sealing performance.

[0023] It should be noted that several notches 13 are provided at the end of the sealing gasket 11, and the inner side surface of the sealing gasket 11 is in close contact with the outer side surface of the arc-shaped plate 9. The combined part of the sealing gasket 11 and the arc-shaped plate 9 has a certain bending angle. In the initial state, multiple arc-shaped plates 9 in the same sealing gasket 11 form a conical shape, so as to better ensure the butt joint of the fire hose 1 and the connecting pipe 2, and at the same time, it will not affect the straightening of the arc-shaped plate 9 by the sealing gasket 11, that is, the outer side surface of the arc-shaped plate 9 is flush with the outer side surface of the connecting pipe 2, and the sealing gasket 11 no longer has a bending angle.

[0024] In a preferred embodiment of the present invention, a strip-shaped groove (not shown in the figure) is provided on the outer side surface of the sealing gasket 11, and a strip-shaped protrusion 12 is provided on the inner wall of the outer cylinder 501. The strip-shaped protrusion 12 is slidably connected to the strip-shaped groove, which can effectively ensure the stable movement of the sealing gasket 11 in the annular assembly groove 10 and further improve the sealing performance at the joint of the connecting pipe 2 and the fire hose 1.

[0025] In a preferred embodiment of the present invention, a butt joint pipe 3 is provided in the middle of the connecting pipe 2. The butt joint pipe 3 is threadedly connected to a water pressure detector 4. A first water stop valve 6 and a second water stop valve 7 are symmetrically arranged on both sides of the water pressure detector 4; when it is necessary to repair and replace the water pressure detector 4, the first water stop valve 6 and the second water stop valve 7 can be closed. When the water pressure detector 4 is removed, less water will flow out, effectively improving the convenience of repairing and replacing the water pressure detector 4.

[0026] The working principle of the present invention is as follows: when the fire hose 1 and the connecting pipe 2 are butt-jointed and installed, the rotary nut 8 is screwed, and the end of the fire hose 1 gradually enters the annular assembly groove 10 and gradually presses against the sealing gasket 11. The end of the fire hose 1 gradually further presses the sealing gasket 11 into the annular assembly groove 10 until the outer wall of the sealing gasket 11 is in close contact with the inner side surface of the annular assembly groove 10. At this time, one end of the sealing gasket 11 straightens the arc-shaped plate 9.

[0027] Based on the ideal embodiments of the present invention as inspiration, through the above description, relevant personnel can completely make various changes and modifications without departing from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and must be determined according to the scope of the claims.

Claims

1. A fire hose water pressure detection device, comprising: Connect the connecting pipe (2) provided between the fire hoses (1). Two connecting structures are symmetrically arranged at both ends of the connecting pipe (2). It is characterized in that a docking pipe (3) is arranged in the middle of the connecting pipe (2), and the docking pipe (3) is threadedly connected to the water pressure detector (4); the connecting structure includes: a clamping cylinder (5) integrally arranged at the end of the connecting pipe (2), and the clamping cylinder (5) includes: an outer cylinder (501) and an inner cylinder (502) integrally arranged. The outer cylinder (501) is rotatably connected to a rotary nut (8), the rotary nut (8) is threadedly connected to the fire hose (1), and a plurality of hinge members are arranged in an array on the side surface of the inner cylinder (502), and each hinge member is connected to an arc-shaped plate (9).

2. The hydraulic pressure detection device for a fire hose according to claim 1, characterized in that: An annular assembly groove (10) is formed between the outer cylinder (501) and the inner cylinder (502), and a sealing gasket (11) is arranged in the annular assembly groove (10).

3. The water pressure detection device for a fire hose according to claim 2, wherein: A strip-shaped groove is arranged on the outer side surface of the sealing gasket (11), and a strip-shaped protrusion (12) is arranged on the inner wall of the outer cylinder (501), and the strip-shaped protrusion (12) is slidably connected to the strip-shaped groove.

4. The water pressure detection device for a fire hose according to claim 2, wherein: A plurality of notches (13) are arranged at the end of the sealing gasket (11), and the inner side surface of the sealing gasket (11) is mutually attached to the outer side surface of the arc-shaped plate (9).

5. The water pressure detection device for a fire hose according to claim 4, wherein: An annular protrusion (14) is arranged on the inner side surface of one end of the sealing gasket (11), and the annular protrusion (14) is respectively clamped to the arc-shaped plate (9).

6. The water pressure detection device for a fire hose according to claim 1, characterized in that: An annular clamping groove (16) is arranged at the end of the clamping cylinder (5), and an annular clamping block (15) is integrally arranged on the side surface of the rotary nut (8), and the annular clamping block (15) is mutually matched with the annular clamping groove (16).

7. A fire hose water pressure detection device according to claim 1, characterized in that: A first water stop valve (6) and a second water stop valve (7) are symmetrically arranged on both sides of the water pressure detector (4).

Images