CN116006700A - Flow-adjustable gas valve - Google Patents

Abstract

The invention relates to a gas valve with adjustable flow rate, which includes a ventilation pipe and a valve body arranged on the ventilation pipe. One side of the ventilation pipe is provided with a gas inlet, and the other side of the ventilation pipe is provided with a gas outlet. , the valve body divides the interior of the ventilation pipeline into a first cavity, a second cavity and a third cavity, the first cavity communicates with the gas inlet, and the third cavity communicates with the gas outlet, There is a ventilation microhole for gas to pass through between the first cavity and the third cavity, and the valve body is located between the first cavity and the second cavity; when the valve body is opened, the gas flows through the gas inlet Enter the first cavity, flow through the second cavity and enter the third cavity, and then flow out from the gas outlet; when the valve body is closed, the gas enters the first cavity from the gas inlet, and enters the third cavity through the ventilation micro-hole After the body, it flows out from the gas outlet. The invention can adjust the gas flow rate and has strong practicability.

Description

A gas valve with adjustable flow

technical field

The invention relates to the technical field of gas valves, in particular to a gas valve with adjustable flow.

Background technique

At present, gas heat preservation umbrellas are widely used in the field of gas. At present, gas heat preservation umbrellas need to be fed with gas to work, but the gas fed into gas heat preservation umbrellas is often quantitatively fed, which easily leads to excessive or excessive temperature in the space. Therefore, how to adjust and control the flow of gas has become a difficult problem for the gas inlet of the gas insulation umbrella.

In order to solve this problem, we designed a gas valve with adjustable flow, thus solving this problem.

Contents of the invention

Aiming at the above-mentioned technical problems in the prior art, the present invention provides a gas valve with adjustable flow rate, which can be applied to a gas insulation umbrella. When the space temperature is too high, the valve is closed, and at the same time, the valve has tiny holes to provide flow, so that There is a fire in the thermal umbrella; when the temperature is too low, the valve opens, and the thermal umbrella uses the tinder retained by the minimum gas to ignite again, which is very practical.

To achieve the above object, the present invention provides the following technical solutions:

A gas valve with adjustable flow rate, which includes a vent pipe and a valve body arranged on the upper end of the vent pipe, one side of the vent pipe is provided with a gas inlet, and the other side of the vent pipe is provided with Gas outlet, the valve body divides the inside of the ventilation pipe into a first cavity, a second cavity and a third cavity, the first cavity communicates with the gas inlet, the The third cavity communicates with the gas outlet, and a ventilation microhole for gas to pass is arranged between the first cavity and the third cavity, and the valve body is located between the first cavity and the third cavity. between the second cavities; when the valve body is opened, gas enters the first cavity from the gas inlet, flows through the second cavity and enters the third cavity The gas outlet flows out; when the valve body is closed, the gas enters the first cavity from the gas inlet, enters the third cavity through the ventilation microhole, and then exits the gas outlet. Breath out.

As a further elaboration to the above-mentioned technical scheme:

In the above technical solution, a gas regulating through hole is provided between the first cavity and the second cavity, and the gas in the first cavity enters the second cavity through the gas regulating through hole, The first cavity communicates with the third cavity through the ventilation microholes, a gas through hole is provided between the second cavity and the third cavity, and the second cavity passes through The gas through hole communicates with the third cavity.

In the above technical solution, the valve body includes a valve cover, a pressure rod, a return spring and a flow regulating pressure plate, an opening is provided at the upper end of the ventilation pipe, the valve cover is closed at the opening, and the pressure rod The up and down movement is arranged in the middle of the valve cover, the flow regulating pressure plate is arranged at the lower end of the pressure rod, the return spring is sleeved on the pressure rod, and the upper end of the return spring is connected with the valve cover. The lower end of the return spring is connected to the flow adjustment pressure plate; when the pressure rod is pressed down, the pressure rod moves downward, driving the flow adjustment pressure plate to cover the gas adjustment through hole, at this time the The gas in the first cavity cannot enter the second cavity through the gas adjustment hole, and the return spring is in a stretched state; When the pressing plate is reset, the flow regulating pressing plate is away from the gas regulating through hole, and the gas in the first cavity enters the inside of the second cavity through the gas regulating through hole.

In the above technical solution, the pressing rod includes a pressing part and a connecting part, the pressing part is exposed outside the air duct, the connecting part is arranged at the lower end of the pressing part and the connecting part is located on the Inside the second cavity, the flow regulating pressing plate is connected to the lower end of the connecting part, and the flow regulating pressing plate moves up and down in the second cavity through the pressing rod.

In the above technical solution, a first sealing structure is provided between the opening of the vent pipe and the valve cover, and a second sealing structure is provided between the valve cover and the pressure rod.

In the above technical solution, the diameter of the gas regulating through-hole is larger than that of the gas through-hole, and the diameter of the gas through-hole is larger than the diameter of the ventilation micro-hole.

Beneficial effects of the present invention:

The invention is reasonable in design and novel in structure. By adopting the structural design of the valve body and ventilation micropores, the gas flow rate of the ventilation pipeline can be adjusted. The cavity, flows through the second cavity and enters the third cavity, and then flows out from the gas outlet, conventional ventilation, and the insulation umbrella uses the tinder retained by the minimum gas to ignite again; when the space temperature is too high, the valve body is closed, and the gas flows from the gas The air inlet enters the first cavity, enters the third cavity through the ventilation micro-hole, and then flows out from the gas outlet, so that the heat preservation umbrella has a kindling. According to the use requirements, different gas ventilation can be selected, which can be applied to the gas heat preservation umbrella On, practicality is strong.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a state diagram when the valve body of the present invention is opened;

Fig. 3 is a state diagram when the valve body of the present invention is closed;

Fig. 4 is a schematic diagram of the structure of the ventilation micropore.

Detailed ways

The present invention will be described in detail below in conjunction with specific embodiments and accompanying drawings.

This embodiment provides a gas valve with adjustable flow rate, as shown in Figure 1-4, which includes a ventilation pipe 1 and a valve body 2 arranged on the upper end of the ventilation pipe 1, and one side of the ventilation pipe 1 is provided with a gas inlet Port 3, the other side of the ventilation pipe 1 is provided with a gas outlet 4, the valve body 2 divides the interior of the ventilation pipe 1 into a first cavity 11, a second cavity 12 and a third cavity 13, the first cavity 11 communicates with the gas inlet 3, the third cavity 13 communicates with the gas outlet 4, and a ventilation microhole 14 for the passage of gas is arranged between the first cavity 11 and the third cavity 13, and the valve body 2 Located between the first cavity 11 and the second cavity 12; when the valve body 2 is opened, gas enters the first cavity 11 from the gas inlet 3, flows through the second cavity 12 and enters the third cavity 13 Flow out from the gas outlet 4; when the valve body 2 is closed, the gas enters the first cavity 11 from the gas inlet 3, enters the third cavity 13 through the ventilation microhole 14, and then flows out from the gas outlet 4.

As a further improvement of the present invention, a gas adjustment through hole 15 is provided between the first cavity 11 and the second cavity 12, the gas in the first cavity 11 enters the second cavity 12 through the gas adjustment through hole 15, and the second cavity 12 A cavity 11 communicates with the third cavity 13 through the ventilation microhole 14, a gas through hole 16 is arranged between the second cavity 12 and the third cavity 13, and the second cavity 12 communicates with the third cavity 13 through the gas through hole 16. The three cavities 13 are connected.

As a further improvement of the present invention, the valve body 2 includes a valve cover 21, a pressure rod 22, a return spring and a flow regulating pressure plate 23. The upper end of the ventilation pipe 1 is provided with an opening 17, the valve cover 21 covers the opening 17, and the pressure rod 22 The up and down movement is set in the middle of the valve cover 21, the flow regulating pressure plate 23 is set on the lower end of the pressure rod 22, the return spring is sleeved on the pressure rod 22, the upper end of the return spring is connected with the valve cover 21, and the lower end of the return spring is connected with the flow adjustment The pressure plate 23 is connected; when the pressure rod 22 is pressed down, the pressure rod 22 moves downward, driving the flow adjustment pressure plate 23 to cover the gas adjustment through hole 15, at this time the gas in the first cavity 11 cannot pass through the gas adjustment through hole 15 enters the second cavity 12, and the return spring is in a stretched state; when the pressure rod 22 is released, the return spring resets the flow adjustment pressure plate 23 due to physical characteristics. At this time, the flow adjustment pressure plate 23 is far away from the gas adjustment through hole 15, and the first The gas in the cavity 11 enters the inside of the second cavity 12 through the gas regulating through hole 15 .

As a further improvement of the present invention, the pressing rod 22 includes a pressing part and a connecting part, the pressing part is exposed outside the ventilation pipe 1, the connecting part is arranged at the lower end of the pressing part and the connecting part is located inside the second cavity 12, and the flow adjustment pressing plate 23 is connected to the lower end of the connection part, and the flow regulating platen 23 moves up and down in the second cavity 12 through the pressing rod 22 .

As a further improvement of the present invention, a first sealing structure is provided between the opening 17 of the vent pipe 1 and the valve cover 21 , and a second sealing structure is provided between the valve cover 21 and the pressure rod 22 .

As a further improvement of the present invention, the diameter of the gas regulating through-hole 15 is larger than that of the gas through-hole 16 , and the diameter of the gas through-hole 16 is larger than that of the ventilation micropore 14 .

In the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

The standard parts used in the present invention can be purchased from the market, and the special-shaped parts can be customized according to the instructions and the records of the accompanying drawings. The specific connection methods of each part adopt mature bolts, rivets, welding, etc. in the prior art. Conventional means, machinery, parts and equipment all adopt conventional models in the prior art, plus circuit connections adopt conventional connection methods in the prior art, and will not be described in detail here.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting the protection scope of the present invention, although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand , the technical solution of the present invention may be modified or equivalently replaced without departing from the spirit and scope of the technical solution of the present invention.

Claims (6)

1. A gas valve with adjustable flow rate, characterized in that it comprises a vent pipe and a valve body arranged at the upper end of the vent pipe, one side of the vent pipe is provided with a gas inlet, and the vent pipe The other side of the valve body is provided with a gas outlet, and the valve body divides the interior of the ventilation pipe into a first cavity, a second cavity and a third cavity, and the first cavity and the gas inlet The third cavity communicates with the gas outlet, the first cavity and the third cavity are provided with ventilation microholes for gas to pass through, and the valve body is located at the Between the first cavity and the second cavity; when the valve body is opened, the gas enters the first cavity from the gas inlet, flows through the second cavity and enters the The third cavity then flows out from the gas outlet; when the valve body is closed, the gas enters the first cavity from the gas inlet, and enters the third cavity through the ventilation micro-hole Then flow out from the gas outlet. 2. A gas valve with adjustable flow rate according to claim 1, characterized in that a gas regulating through hole is provided between the first cavity and the second cavity, and the first cavity The gas enters the second cavity through the gas regulating hole, the first cavity communicates with the third cavity through the ventilation microhole, and the second cavity communicates with the third cavity. Gas through holes are provided between the cavities, and the second cavity communicates with the third cavity through the gas through holes. 3. A gas valve with adjustable flow rate according to claim 2, characterized in that the valve body includes a valve cover, a pressure rod, a return spring and a flow adjustment pressure plate, and the upper end of the ventilation pipe is provided with an opening , the valve cover is closed at the opening, the pressure rod is movable up and down in the middle of the valve cover, the flow regulating pressure plate is disposed at the lower end of the pressure rod, and the return spring is sleeved on the pressure rod. On the rod, the upper end of the return spring is connected to the valve cover, and the lower end of the return spring is connected to the flow regulating pressure plate; when the pressure rod is pressed, the pressure rod moves downward, driving the The flow regulating pressure plate is covered by the gas regulating through hole. At this time, the gas in the first cavity cannot enter the second cavity through the gas regulating through hole, and the return spring is in a stretched state; loosen the When pressing the lever, the return spring resets the flow regulating pressure plate due to physical characteristics. At this time, the flow regulating pressure plate is far away from the gas regulating through hole, and the gas in the first cavity passes through the gas regulating through hole. A hole enters the interior of the second cavity. 4. A gas valve with adjustable flow rate according to claim 3, characterized in that the pressure rod includes a pressing part and a connecting part, the pressing part is exposed outside the ventilation pipe, and the connecting part part is arranged at the lower end of the pressing part and the connecting part is located inside the second cavity, the flow regulating pressing plate is connected with the lower end of the connecting part, and the flow regulating pressing plate Up and down movement is performed in the second cavity. 5. A gas valve with adjustable flow rate according to claim 3, characterized in that there is a first sealing structure between the opening of the ventilation pipe and the valve cover, and the valve cover and the valve cover are A second sealing structure is arranged between the pressure rods. 6. A gas valve with adjustable flow rate according to claim 2, characterized in that, the diameter of the gas regulating through hole is larger than the diameter of the gas through hole, and the diameter of the gas through hole is larger than the diameter of the gas through hole. The pore size of the vent micropores.

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