TWM599174U - Improved structure of breathing valve - Google Patents

Abstract

This creation is an improved structure of a breathing valve, which includes a valve body and a guide air hood; wherein the valve body can be connected and combined with the oil groove, the valve body forms an air chamber, and the valve body is provided with a side opposite to the air chamber. The suction port, the air chamber is provided with an upwardly movable suction valve seat relative to the suction port; the valve body is provided with an exhaust seat above the connecting pipe seat, so that an exhaust is formed between the air chamber and the exhaust seat The exhaust port is provided with an upwardly movable exhaust valve seat; in addition, the side wall of the valve body is provided with a pressure test hole, and the pressure test hole is provided with a detachable seal; the air guide hood is provided with Below the suction port of the valve body, the inner diameter of the suction port on the lower side of the guide air hood is larger than the diameter of the suction port of the valve body, and the suction port of the guide air hood is provided with a fire-stop plate; To provide a breathing valve structure that can improve safety and work smoothness.

Description

Improved structure of breathing valve

This creation is an improved structure of a breathing valve, especially an improved design of a breathing valve set on a large oil tank for suction and exhaust, in order to provide a breathing valve structure that can improve safety and smooth operation.

According to, in order to maintain the pressure balance in the large oil tank, a breathing valve will be installed on the top of the large oil tank to ensure that the large oil tank is not damaged due to pressure imbalance, to protect the safety of the oil tank, and to reduce the volatilization and loss of the material in the oil tank , To achieve the purpose of safety and environmental protection.

And check, as shown in Figure 1, it is a breathing valve widely used in the industry at present. The breathing valve is composed of a valve body 10 with an air chamber 11 on the valve body 10 and a through hole below the air chamber 11 12. The air chamber 11 is provided with an exhaust port 12, and the exhaust port 12 is provided with an upwardly movable exhaust valve seat 13; in addition, the valve body 11 is provided with a suction port 14 on one side of the air chamber 11 , The suction port 14 is provided with an upwardly movable suction valve seat 15; thereby, the valve body 10 can be set on the top of the oil tank, and when the oil tank outputs materials, the breathing valve is moved from the suction port 14 to Air is sucked in the oil tank, and when the material is filled into the oil tank, the breathing valve uses the exhaust port 12 to discharge the gas in the oil tank.

Although the above-mentioned breathing valve can provide the pressure balance in the oil tank and improve the safety of the oil tank; however, since the conventional breathing valve sucks in air from the air inlet, it will remove the surrounding foreign objects (such as: fallen leaves, feathers, paper scraps, plastic pieces) Chips,... etc.) are inhaled into the breathing valve together, causing the foreign matter to accumulate in the suction chamber 14 and the exhaust chamber 11 of the breathing valve. This causes the subsequent suction and exhaust of the breathing valve to be unsmooth, and it cannot operate correctly. It is easy to produce dangerous situations due to pressure imbalance when the oil tank is feeding (in) materials; in addition, because the conventional breathing valve does not have a setting for testing whether the breathing valve can work normally, the breathing valve must be installed from the top of the large oil tank It can be tested after disassembly and transportation to a flat surface or a testing factory, and the construction operation is inconvenient, and it takes time for disassembly and assembly. It is time-consuming and laborious to improve.

The purpose of this creation is to improve the shortcomings of the conventional breathing valve, so as to provide a breathing valve structure that can improve safety and work smoothness.

In order to achieve the above-mentioned purpose, the breathing valve of this creation includes a valve body and a guiding wind hood; among them:

The valve body has an air chamber formed therein. A connecting pipe seat is provided under the valve body, and the connecting pipe seat can be connected to the oil groove. The valve body is provided with an air suction port on one side of the opposite air chamber, and the air chamber is relatively inhaled A suction valve seat that can move upward is provided above the port; an exhaust seat is provided on the valve body relative to the upper side of the connecting pipe seat, so that an exhaust port is formed between the air chamber and the exhaust seat, and the exhaust port is provided with an upward A movable exhaust valve seat; In addition, the side wall of the valve body is provided with a pressure test hole, and the pressure test hole is provided with a detachable seal;

The air guide hood is set under the suction port of the valve body. The inner diameter of the suction port on the lower side of the air guide hood is larger than the diameter of the suction port of the valve body. The suction port of the air guide hood is provided with a Firestop

In this way, we provide a breathing valve structure that can improve safety and work smoothness.

Regarding the technical means and structure used in this creation to achieve the purpose, I would like to cooperate with the embodiments shown in Figures 2 to 4, and the detailed description is as follows:

As shown in Fig. 2, the breathing valve in the embodiment includes a valve body 20 and a guide air hood 30; among them:

The valve body 20 (please refer to FIG. 2) has an air chamber 21 formed therein. A connecting pipe seat 22 is provided under the valve body 20. The connecting pipe seat 22 can be connected to the oil groove. The valve body 20 is opposite to the air chamber 21 One side is provided with a suction port 23. The air chamber 21 is provided with an upwardly movable suction valve seat 24 above the suction port 23; the valve body 20 is provided with an exhaust seat 25 above the connecting pipe seat 22 , An exhaust port 26 is formed between the air chamber 21 and the exhaust seat 25. The exhaust port 26 is provided with an upwardly movable exhaust valve seat 27; in addition, the side wall of the valve body 20 is provided with a pressure test hole 28 , The pressure test hole 28 is also provided with a detachable seal 281.

The air guide hood 30 (please refer to Figure 2) is arranged under the suction port 23 of the valve body 20. The inner diameter of the suction port 31 on the lower side of the air guide hood 30 is larger than the suction port of the valve body 20 The diameter of the opening 23, the suction port 31 of the guiding wind hood 30 is provided with a fire-stop plate 32.

In view of the above, a preferred embodiment is that the air guiding hood 30 is a rounded arc bowl-shaped hood, so that the inhaled airflow can be evenly guided from the suction port 24 into the air chamber 21.

In view of the above, a preferred embodiment is that a fire-stop plate 29 is provided above the exhaust seat 25.

With the above structure, the connecting tube base 22 of the present creation can be combined and set on the top of the oil tank (not shown in the figure). When the oil tank is outputting materials, the present creation can discharge air into the oil tank through the suction port 23, and When filling materials into the oil tank, the breathing valve allows the gas in the oil tank to be discharged through the exhaust port 26 to provide a balance of pressure in the oil tank.

When you want to test whether this creation can work normally, you can first close the shut-off valve (not shown in the figure) on the top of the oil tank, so that the oil tank is disconnected from the air chamber 21 of this creation, and then set the valve body 20 The seal 281 of the pressure test hole 28 is removed, and the positive pressure (or negative pressure) is input through the pressure test hole 27 to test whether the exhaust valve seat 26 (or the suction valve seat 24) of the valve body 20 can be Normal operation (as shown in Figures 3 and 4), by which you can quickly determine whether the creation can effectively inhale and discharge the gas in the oil tank to balance the pressure, without disassembling the creation from the top of the oil tank, which can actually improve the work It is safe and has the advantages of saving time and effort.

Furthermore, since the air guide hood 30 is provided under the suction port 23 of the present creation, and the suction port 31 on the lower side of the air guide hood 30 is provided with a fire-stop plate 32, it can not only provide gas to flow into the air chamber 21, but also It prevents foreign matter from entering the air chamber 21, and prevents the concentration of sparks caused by fire or lightning strikes, and improves the safety of this creation; and because the fire-stop plate 32 itself has resistance due to the factors of the mesh setting, the guide air cover of this creation 30 is narrow in the upper part and wide in the lower part. The diameter of the suction port 31 under the guide air hood 30 is larger than the diameter of the suction port 23, so that the diameter of the flame arrester 32 is larger than the diameter of the suction port 23, so that the gas can pass through the barrier. The flow of the gas entering the fire plate 32 is equivalent to the flow of the suction port 23, and there is no pressure drop, so that the gas can smoothly drive the suction valve seat 24 to move upward to allow the gas to enter the gas chamber 21 In order to maintain the pressure balance in the oil tank.

In addition, since the air guiding hood 30 of this creation is an inverted arc bowl-shaped hood, it can guide the inhaled gas to form a uniform fluid without turbulence in front of the suction port 23, so that the inlet guide The gas of the draft hood 30 can smoothly drive the suction valve seat 24 to move upward so that the gas enters the gas chamber 21 to maintain the pressure balance in the oil tank.

In addition, since the exhaust port 26 of this creation is provided with a fire-stop plate 29, it can not only provide gas out of the gas chamber 21, but also prevent foreign matter from entering the gas chamber 21, and can prevent the concentration of sparks caused by fire or lightning. Improve the safety of this creation.

Therefore, from the above, it can be seen that compared with the previous technology, this creation is indeed significantly progressive, and its structure is indeed unprecedented, and it has met the requirements of a new patent. Yan filed a patent application in accordance with the law and prayed for a patent. For prayers, I feel good.

However, the above is only a feasible embodiment of this creation. This embodiment is mainly used to illustrate the technical means and structure used to achieve the purpose of this creation. Therefore, it cannot limit the scope of protection of this creation. All equivalent changes or modifications made in accordance with this creation specification and the scope of patent application shall still fall within the scope of protection covered by this creation.

10: Valve body 11: Exhaust chamber 12: Through hole 13: Exhaust valve seat 14: suction port 15: suction valve seat 20: Valve body 21: Connecting pipe seat 22: Air chamber 23: suction port 24: suction valve seat 25: exhaust seat 26: exhaust port 27: Exhaust valve seat 28: Pressure test hole 281: Seal 29: Firestop 30: Guide wind hood 31: suction port 32: Firestop

[Figure 1] is the sectional structure diagram of the conventional breathing valve. [Figure 2] is the sectional structure diagram of this creation. [Figure 3] is the sectional structure diagram of this creation, and the schematic diagram of the positive pressure input from the pressure test hole. [Figure 4] is a sectional structure diagram of this creation, and a schematic diagram of negative pressure input from the pressure test hole.

20: Valve body

21: Connecting pipe seat

22: Air chamber

23: suction port

24: suction valve seat

25: exhaust seat

26: exhaust port

27: Exhaust valve seat

28: Pressure test hole

281: Seal

29: Firestop

30: Guide wind hood

31: suction port

32: Firestop

Claims (3)

An improved structure of a breathing valve, comprising a valve body and an air guide hood; wherein: The valve body has an air chamber formed therein. A connecting pipe seat is provided under the valve body, and the connecting pipe seat can be connected to the oil groove. The valve body is provided with an air suction port on one side of the opposite air chamber, and the air chamber is relatively inhaled A suction valve seat that can move upward is provided above the port; an exhaust seat is provided on the valve body relative to the upper side of the connecting pipe seat, so that an exhaust port is formed between the air chamber and the exhaust seat, and the exhaust port is provided with an upward A movable exhaust valve seat; In addition, the side wall of the valve body is provided with a pressure test hole, and the pressure test hole is provided with a detachable seal; The air guide hood is set under the suction port of the valve body. The inner diameter of the suction port on the lower side of the air guide hood is larger than the diameter of the suction port of the valve body. The suction port of the air guide hood is provided with a Fire arrester. The improved structure of the breathing valve according to claim 1, wherein the air guiding hood is an inverted arc bowl-shaped hood. The improved structure of the breathing valve according to claim 1, wherein a fire-stop plate is provided above the exhaust seat.

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