Foldable breathing tube system capable of relieving pressure

Abstract

The invention relates to the technical field of breathing tubes, and discloses a pressure-relief folding breathing tube system which comprises a plurality of breathing tubes and a support, the breathing tubes are vertically arranged in parallel, the middle support is in a square shape, and a fixing clamp is arranged at the top of the support and used for fixing the breathing tubes in the vertical direction; and a first hoop is arranged at the bottom of the bracket and is used for vertically fixing and detachably connecting the bracket and the fixed pipeline. The fixed pipeline and the breathing pipeline are in flange sealing connection through a folding device and can be folded back and forth. During use, the first hoop and the fixing clamp of the support are connected with a plurality of pipelines in a vertical state, and when the breathing pipeline needs to be folded, the breathing pipeline and the fixing clamp can be separated through the pull rod, the breathing pipeline is converted into a horizontal state from the vertical state through the folding device, and the breathing pipeline is supported through the pull rod; and therefore, a worker can maintain the breathing pipeline conveniently, and the risk of climbing operation is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of breathing tubes, in particular to a pressure-relieving foldable breathing tube system. Background Art

[0002] The oil and gas pressure in the oil tanks at gas stations will change with the ambient temperature and the amount of oil stored. Therefore, the oil tanks at gas stations are equipped with breathing tubes to balance the pressure inside and outside the tanks, prevent the tanks from being deformed or damaged due to excessive or insufficient pressure, and reduce oil and gas evaporation.

[0003] A foldable breathing tube is thus established with a pressure-relieving foldable breathing tube system. The bottom of the traditional bracket is fixed on the ground and needs to be fixed with concrete during on-site installation. The operation is cumbersome, increasing costs and wasting time.

[0004] The existing patent (publication number: CN213415035U) discloses a pressure-relief foldable breathing tube system, which includes a door frame and a plurality of pressure-relief foldable breathing tubes, the foldable breathing tubes including a fixed tube, a folding device and a folding tube, and the folding device connects the fixed tube and the folding tube. The foldable breathing tube system of the present invention makes on-site installation more convenient, saves costs, and can also adjust the horizontality of each fixed tube.

[0005] In the process of realizing the present invention, it was found that at least the following problems exist in the current technology and have not been well solved: after the existing ventilation pipeline is folded, it is not convenient to support the pipeline, which makes it inconvenient for staff to maintain it; the breathing valve is installed at a high place and is not easy for staff to check, which poses a safety hazard. Summary of the invention

[0006] The object of the present invention is to provide a pressure-relief foldable breathing tube system to solve the problems mentioned in the background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pressure-relief foldable breathing tube system, comprising a plurality of breathing tubes and a bracket, wherein the plurality of breathing tubes are arranged vertically in parallel, the bracket is in the shape of a "mouth", a plurality of fixing clips are arranged on the outer side of the top of the bracket, a plurality of first hoops are arranged on the outer side of the bottom of the bracket through a rotating shaft, the plurality of first hoops are respectively detachably fixedly connected to a plurality of fixed breathing tubes, and the bracket is respectively connected to a plurality of breathing tubes in a bayonet manner through a plurality of fixing clips on the top; A second clamp is arranged above the breathing duct, and a pull rod is rotatably installed at the rear of the second clamp through a rotating shaft.

[0008] As a preferred embodiment of the present invention, the pull rod is a telescopic rod, which includes an inner rod and an outer tube. The outer surface of the inner rod is a rough surface, and the inner rod is telescopically arranged in the outer tube.

[0009] As a preferred embodiment of the present invention, the breathing duct includes two pipelines arranged upper and lower, and the two pipelines are sealed and connected by a pressure relief folding valve.

[0010] As a preferred embodiment of the present invention, a protection valve is provided on the pressure relief folding valve.

[0011] As a preferred embodiment of the present invention, a breathing valve is provided on the top of the breathing pipe.

[0012] As a preferred embodiment of the present invention, the bracket is made of aluminum.

[0013] As a preferred embodiment of the present invention, a fire arrester cap is provided on the breathing valve.

[0014] Compared with the prior art, the present invention provides a pressure-relieving foldable breathing tube system, which has the following beneficial effects: The pressure-relieving foldable breathing tube system has a pull rod, and when in use, the bracket can be connected to a plurality of pipes through a first clamp and a fixing clamp. When the breathing tube needs to be folded, the fixing clamp can be separated from the breathing tube, and then the pipe above the breathing tube is pulled from a vertical state to a horizontal state through the pull rod, and then the breathing tube is supported by the pull rod, so that it is convenient for workers to maintain the breathing tube and avoid the risk of high-altitude operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings: Figure 1 A schematic diagram of the state transition of a pull rod and a breathing tube of a foldable breathing tube system of the present invention; Figure 2 A side view of a foldable breathing tube system of the present invention; Figure 3 It is a schematic diagram of a foldable breathing tube system according to embodiment 2 of the present invention; Figure 4 It is an enlarged schematic diagram of the pressure relief folding valve; Figure 5 This is an enlarged schematic diagram of the safety valve.

[0016] In the figure: 1. breathing pipe; 2. bracket; 3. fixing clamp; 4. first clamp; 5. fixed breathing pipe; 6. safety valve; 7. pull rod; 8. second clamp; 9. pressure relief folding valve; 10. breathing valve; 11. flame arrester; 21. hand wheel screw; 22. folding rod; 25. slider. Implementation

[0017] In order to better understand the purpose, structure and function of the present invention, a pressure-relieving foldable breathing tube system of the present invention is further described in detail below in conjunction with the accompanying drawings.

[0018] like Figure 1-Figure 5 As shown, the present invention provides a technical solution: a pressure-relief foldable breathing tube system, comprising a plurality of breathing tubes 1 and a bracket 2, wherein the plurality of breathing tubes 1 are arranged vertically in parallel, the bracket 2 is in a "mouth" shape, a plurality of fixing clips 3 are arranged on the outer side of the top of the bracket 2, a plurality of first hoops 4 are arranged on the outer side of the bottom of the bracket 2 through a rotating shaft, the plurality of first hoops 4 are detachably connected to the plurality of breathing tubes 1, and the bracket 2 is detachably connected to the plurality of breathing tubes 1 through the plurality of fixing clips 3 on the top; A second clamp 8 is provided above the breathing duct 1, and a pull rod 7 is rotatably installed behind the second clamp 8 via a rotating shaft; When the pipeline system is in use, the bracket 2 can be connected to several pipelines through the first clamp 4 and the fixing clamp 3. When the breathing duct 1 needs to be folded, the fixing clamp 3 can be separated from the breathing duct 1, and then the pipeline above the breathing duct 1 can be pulled from a vertical state to a horizontal state through the pull rod 7, and then the breathing duct 1 can be supported by the pull rod 7, so as to facilitate the maintenance of the breathing duct 1 by the staff and avoid the risk of climbing operations.

[0019] In this embodiment, the pull rod 7 is a pull rod, and the outer surface of the inner rod is a rough surface. By designing the pull rod 7, when the breathing duct 1 is pulled to turn it to a horizontal state, the pull rod 7 is adjusted to a suitable angle to support the breathing duct, so as to facilitate maintenance by the staff.

[0020] In this embodiment, the breathing pipe 1 and the fixed breathing pipe 5 are two pipelines, and the two pipelines are connected by a flange seal through a pressure relief folding valve 9.

[0021] In this embodiment, a breathing valve 10 is provided on the top of the breathing pipe 1. When the oil and gas pressure in the pipe is between 2 and 3 kPa, the breathing valve 10 can automatically open for exhaust. When the oil and gas pressure in the pipe is between 1.5 and 2 kPa, the breathing valve 10 is closed to isolate it from the atmosphere.

[0022] In this embodiment, a safety valve 6 is arranged on the pressure relief folding valve 9, and the safety valve of the pressure relief device arranged on the pressure relief folding valve 9: the exhaust pressure of the breathing valve 10 at the top of the normal ventilation pipe is 2kPa to 3kPa. When the oil and gas pressure in the ventilation pipe reaches the exhaust pressure value, the breathing valve 10 opens to release the pressure to protect the underground oil tank; because the breathing valve is arranged at a high place, when the breathing valve fails, it is difficult for personnel to find that the pressure in the underground oil tank increases and damages the oil tank, thereby leaving safety hazards and economic losses. When the pressure reaches above 3kPa, the safety valve 6 of the pressure relief device automatically opens to balance the internal and external pressures to protect the safety of the oil tank and reduce safety hazards.

[0023] In this embodiment, the bracket 2 is made of aluminum, which is anti-static.

[0024] In this embodiment, the breathing valve 10 is equipped with a fire stopper 11 for cutting off the fire source. Example

[0025] The difference between this embodiment and embodiment 1 is that: In this embodiment, a folding rod 22 is provided between the bracket 2 and the fixing clamp 3, a handwheel screw 21 is provided above the folding rod 22, two sliders 25 are provided on the folding rod, the handwheel screw 21 is a forward and reverse bidirectional external thread, and the two sliders 25 are matched with the screw, one forward and one reverse internal thread. The handwheel screw 21 is rotated to make the two sliders 25 slide towards each other on the screw to drive the folding rod 22 to extend and retract, thereby satisfying the reciprocating movement of the breathing pipe 1 from the vertical state to the horizontal state.

[0026] It is to be understood that the present invention is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A pressure-relief foldable breathing tube system, comprising a plurality of breathing tubes (1) and a bracket (2), characterized in that: The plurality of breathing pipes (1) are arranged vertically in parallel, the bracket (2) is in the shape of a "mouth", a plurality of fixing clips (3) are arranged on the outer side of the top of the bracket (2), a plurality of first hoops (4) are arranged on the outer side of the bottom of the bracket (2) via a rotating shaft, the plurality of first hoops (4) are respectively detachably fixedly connected to the plurality of fixed breathing pipes (5), and the bracket (2) is respectively connected to the plurality of breathing pipes (1) via a plurality of fixing clips (3) at the top in a bayonet manner; A second clamp (8) is arranged above the breathing duct (1), and a pull rod (7) is rotatably mounted on the rear of the second clamp (8) via a rotating shaft.

2. A pressure-relief foldable breathing tube system according to claim 1, characterized in that: The pull rod (7) and the breathing tube (1) are made of aluminum and the surface is subjected to sandblasting oxidation treatment to reduce static electricity generation and protect the pipe from aging.

3. A pressure-relief foldable breathing tube system according to claim 2, characterized in that: The breathing pipe (1) and the fixed breathing pipe (5) are two pipelines, and the two pipelines are connected by flange sealing through a pressure relief folding valve (9), and the folding valve (9) is provided with a pressure relief device safety valve (6).

4. A pressure-relief foldable breathing tube system according to claim 3, characterized in that: A breathing valve (10) is provided at the top of the breathing pipe (1).

5. The pressure-relief foldable breathing tube system according to claim 4, characterized in that: The material of the bracket (2) is aluminum.

6. The pressure-relief foldable breathing tube system according to claim 3, characterized in that: The breathing valve (10) is equipped with a fire arrester cap (11).

7. The pressure-relief foldable breathing tube system according to claim 3, characterized in that: A folding rod (22) is arranged between the bracket (2) and the fixing clamp (3), a hand wheel screw (21) is arranged above the folding rod (22), two sliders (25) are arranged on the folding rod, the hand wheel screw (21) is a forward and reverse bidirectional external thread, and the two sliders (25) are matched with the screw, one forward and one reverse internal thread. The hand wheel screw (21) is rotated to make the two sliders (25) slide towards each other on the screw to drive the folding rod to extend and retract, thereby satisfying the reciprocating movement of the breathing tube (1) from the vertical state to the horizontal state.

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