A foldable breathing tube for oil storage tanks at gas stations

Abstract

The invention discloses a foldable breathing tube for an oil storage tank at a gas station, which comprises a fixed breathing tube, a rotatable breathing tube, a mounting flange and a rotating device. When the novel foldable breathing tube for an oil storage tank at a gas station is in use, when it is necessary to perform inspection and maintenance operations, the release operating rod is unlocked from the locking pin; the release operating rod is held to slowly lower the rotatable breathing tube so that the rotatable breathing tube is in a horizontal state, and then the inspection and maintenance work can be performed. The foldable breathing tube for an oil storage tank at a gas station has a simple structure and is easy to install. It can be operated by one person, saves maintenance time, and improves safety. The staff can complete all the inspection and maintenance work on the ground, which simplifies the inspection and maintenance work while avoiding the danger of high-altitude operations.

Description

Technical Field

[0001] The invention relates to the technical field of breathing tubes for oil storage tanks, and in particular to a foldable breathing tube for oil storage tanks at gas stations. 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 to prevent the tanks from being deformed or damaged due to excessive or insufficient pressure. At the same time, a certain oil and gas pressure is maintained in the tank to reduce oil and gas evaporation.

[0003] The oil tank breathing tube is a safety system to ensure the safe operation of the oil tank and reduce the evaporation loss of oil. Regular inspection and maintenance of the breathing tube is an important measure to ensure the normal operation of the oil tank. The height of the traditional breathing tube is about 5 meters. The daily inspection and maintenance mainly focuses on the inspection of the breathing valve and flame arrester at the top. This requires the use of ladders, scaffolding or lifting equipment to send workers to the top of the breathing tube for high-altitude operations. High-altitude operations are a hidden danger to the safety of workers, and a safe alternative method is needed to inspect and maintain the breathing tube.

[0004] In view of the above problems, the present invention designs a foldable breathing tube for oil tanks at gas stations. When the new type of foldable breathing tube for oil tanks at gas stations is in use, the fixed breathing tube mounting flange is installed on the oil tank. When working normally, the release operating rod is locked by the locking pin, so that the rotatable breathing tube is vertically upward; when inspection and maintenance work is required, the release operating rod is unlocked from the locking pin; the release operating rod is held to slowly lower the rotatable breathing tube so that the rotatable breathing tube is horizontal, and the inspection and maintenance work can be carried out; during the whole process of inspection and maintenance of the rotatable breathing tube, the rotating ball in the rotating mechanism will cut off the passage between the oil tank and the outside world and maintain the sealing integrity of the foldable breathing tube. When the oil and gas pressure in the oil tank is too high, the safety valve provided on the fixed breathing tube will automatically open to ensure the safety of the oil tank and the underground pipeline. The foldable breathing tube for oil tanks at gas stations has a simple structure, is easy to install, can be operated by one person, saves maintenance time, and improves safety. The staff can complete all the inspection and maintenance work on the ground, which simplifies the inspection and maintenance work while avoiding the danger of high-altitude operations. Summary of the invention

[0005] In order to overcome the defects existing in the background technology, a foldable breathing tube for an oil storage tank at a gas station is provided, comprising a fixed breathing tube, a rotatable breathing tube, a mounting flange and a rotating device, wherein an arc-shaped tray is fixed in the rotating device, the top of the fixed breathing tube is fixed on the rotating device, the fixed breathing tube is connected with the arc-shaped tray, the bottom of the fixed breathing tube is fixed with a mounting flange, a rotatable rotating sphere is provided in the arc-shaped tray of the rotating device, the rotatable breathing tube is fixed on the rotating sphere, the rotatable breathing tube is connected with the fixed breathing tube through the rotating sphere, a breathing valve is provided at the top of the rotatable breathing tube, a safety valve is provided on the fixed breathing tube, a lower fixed rod is fixed on the fixed breathing tube, an upper fixed rod is fixed on the rotatable breathing tube corresponding to the lower fixed rod, the top of the upper fixed rod is rotatably connected with one end of a release operating rod through a rotating shaft, and the other end of the release operating rod is arranged together with the lower fixed rod through a locking pin.

[0006] Preferably, the rotatable breathing tube, the rotating sphere and the fixed breathing tube are made of metal materials.

[0007] The invention discloses a novel foldable breathing tube for oil tanks at gas stations. When in use, the fixed breathing tube mounting flange is installed on the oil tank. When working normally, the release operating rod is locked by the locking pin, so that the rotatable breathing tube is vertically upward; when inspection and maintenance work is required, the release operating rod is unlocked from the locking pin; the rotatable breathing tube is slowly laid down by holding the release operating rod, so that the rotatable breathing tube is horizontal, and the inspection and maintenance work can be carried out; during the whole process of inspection and maintenance of the rotatable breathing tube, the rotating ball in the rotating mechanism will cut off the passage between the oil tank and the outside world, and maintain the sealing integrity of the foldable breathing tube. When the oil and gas pressure in the oil tank is too high, the safety valve provided on the fixed breathing tube will automatically open to ensure the safety of the oil tank and the underground pipeline. The foldable breathing tube for oil tanks at gas stations has a simple structure, is easy to install, can be operated by one person, saves maintenance time, and improves safety. The staff can complete all the inspection and maintenance work on the ground, simplifies the inspection and maintenance work, and also avoids the danger of high-altitude operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0009] Figure 1 This is a schematic diagram of the structure of a foldable breathing tube for a gas station oil tank of the present invention. Figure 1 ;

[0010] Figure 2 This is a schematic diagram of the structure of a foldable breathing tube for a gas station oil tank of the present invention. Figure 2 ;

[0011] Figure 3It is a schematic diagram of the internal structure of a foldable breathing tube for an oil storage tank at a gas station of the present invention;

[0012] Among them: 1. Fixed breathing tube; 2. Rotatable breathing tube; 3. Mounting flange; 4. Rotating device; 5. Safety valve; 6. Breathing valve; 7. Upper fixing rod; 8. Lower fixing rod; 9. Rotating shaft; 10. Locking pin; 11. Release operating lever; 12. Arc tray; 13. Rotating sphere. DETAILED DESCRIPTION

[0013] The present invention will now be described in further detail with reference to the accompanying drawings. The accompanying drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and thus only show the components related to the present invention.

[0014] For specific embodiment 1, please refer to Figure 1-3 A foldable breathing tube for an oil storage tank at a gas station comprises a fixed breathing tube 1, a rotatable breathing tube 2, a mounting flange 3 and a rotating device 4, wherein an arc tray 12 is fixed in the rotating device 4, the top of the fixed breathing tube 1 is fixed on the rotating device 4, the fixed breathing tube 1 is connected to the arc tray 12, the bottom of the fixed breathing tube 1 is fixed with a mounting flange 3, a rotatable rotating sphere 13 is arranged in the arc tray 12 of the rotating device 4, the rotatable breathing tube 2 is fixed on the rotating sphere 13, and the rotatable breathing tube 2 is connected to the fixed breathing tube 2 through the rotating sphere 13. The fixed breathing tube 1 is connected, a breathing valve 6 is provided at the top of the rotatable breathing tube 2, a safety valve 5 is provided on the fixed breathing tube 1, a lower fixing rod 8 is fixed on the fixed breathing tube 1, an upper fixing rod 7 is fixed on the rotatable breathing tube 2 corresponding to the lower fixing rod 8, the top of the upper fixing rod 7 is rotatably connected with one end of the release operating rod 11 through a rotating shaft 9, and the other end of the release operating rod 11 is arranged together with the lower fixing rod 8 through a locking pin 10, and the rotatable breathing tube 2, the rotating sphere 13 and the fixed breathing tube 1 are made of metal material.

[0015] The invention discloses a foldable breathing tube for an oil tank at a gas station. When the novel foldable breathing tube for an oil tank at a gas station is in use, a fixed breathing tube mounting flange is installed on the oil tank. When working normally, the release operating rod is locked by a locking pin, so that the rotatable breathing tube is vertically upward; when inspection and maintenance work is required, the release operating rod is unlocked from the locking pin; the rotatable breathing tube is slowly laid down by holding the release operating rod, so that the rotatable breathing tube is horizontal, and the inspection and maintenance work can be carried out; during the whole process of inspection and maintenance of the rotatable breathing tube, a rotating ball in a rotating mechanism will cut off the passage between the oil tank and the outside world, and maintain the sealing integrity of the foldable breathing tube. When the oil and gas pressure in the oil tank is too high, a safety valve is provided on the fixed breathing tube and automatically opens to ensure the safety of the oil tank and the underground pipeline. The foldable breathing tube for an oil tank at a gas station has a simple structure, is easy to install, can be operated by one person, saves maintenance time, and improves safety. The staff can complete all the inspection and maintenance work on the ground, simplifies the inspection and maintenance work, and also avoids the danger of high-altitude operation.

[0016] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A foldable breathing tube for an oil storage tank at a gas station, comprising a fixed breathing tube (1), a rotatable breathing tube (2), a mounting flange (3) and a rotating device (4), characterized in that: An arc-shaped tray (12) is fixed in the rotating device (4); the top of the fixed breathing tube (1) is fixed on the rotating device (4); the fixed breathing tube (1) is connected to the arc-shaped tray (12); a mounting flange (3) is fixed to the bottom of the fixed breathing tube (1); a rotatable rotating sphere (13) is provided in the arc-shaped tray (12) of the rotating device (4); a rotatable breathing tube (2) is fixed on the rotating sphere (13); the rotatable breathing tube (2) is connected to the fixed breathing tube (1) via the rotating sphere (13); a breathing valve (6) is provided at the top of the rotatable breathing tube (2); and the fixed breathing tube (1) is provided with a rotating valve (13). A safety valve (5) is provided on the suction pipe (1), a lower fixed rod (8) is fixed on the fixed breathing pipe (1), an upper fixed rod (7) is fixed on the rotatable breathing pipe (2) corresponding to the lower fixed rod (8), the top end of the upper fixed rod (7) is rotatably connected to one end of a release operating rod (11) through a rotating shaft (9), and the other end of the release operating rod (11) is arranged together with the lower fixed rod (8) through a locking pin (10). During the whole process of inspection and maintenance of the rotatable breathing pipe (2), the rotating ball (13) in the rotating device (4) will cut off the passage between the oil tank and the outside world and maintain the sealing integrity of the foldable breathing pipe.

2. A foldable breathing tube for a gas station oil tank according to claim 1, characterized in that: The rotatable breathing tube (2), the rotating sphere (13) and the fixed breathing tube (1) are made of metal material.

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