阅读说明：本技术 一种排气蝶阀 (Exhaust butterfly valve ) 是由 王浩宇 田玉龙 纪学伟 俞晓会 王强学 于 2019-09-18 设计创作，主要内容包括：本发明公开了一种排气蝶阀,包括阀体和设置在阀体内的封水阀门,封水阀门上连接有密封胶圈,所述阀体上方连接有阀门把手和固定阀门把手的第一固定板和第二固定板,阀门把手中嵌入有排气把手,阀门把手通过一根空心管与封水阀门相连,通过转动阀门把手来控制封水阀门的转动从而达到控制水路的目的；所述排气把手与排气管相连,排气管嵌套在空心管中,排气管可在空心管中转动,在靠近阀体内壁顶部的空心管和排气管的管壁上分别设有相匹配的外排气孔、内排气孔,排气把手顶部设有与排气管内部空腔相连通的排气口。本发明具有以下优点：能够有效的防止管道发生水锤现象,防止管道及阀门的损坏；节约成本,无需在另外安装其他排气装置。(The invention discloses an exhaust butterfly valve, which comprises a valve body and a water sealing valve arranged in the valve body, wherein a sealing rubber ring is connected to the water sealing valve; the exhaust handle is connected with the exhaust pipe, the exhaust pipe is nested in the hollow pipe, the exhaust pipe can rotate in the hollow pipe, an outer exhaust hole and an inner exhaust hole which are matched with each other are respectively arranged on the pipe walls of the hollow pipe close to the top of the inner wall of the valve body and the exhaust pipe, and an exhaust port communicated with an inner cavity of the exhaust pipe is arranged at the top of the exhaust handle. The invention has the following advantages: the water hammer phenomenon of the pipeline can be effectively prevented, and the pipeline and the valve are prevented from being damaged; the cost is saved, and other exhaust devices do not need to be additionally installed.)

1. The utility model provides an exhaust butterfly valve, includes valve body (1) and water sealing valve (5) of setting in the valve body, is connected with sealing rubber ring (10), its characterized in that on water sealing valve (5): the water-sealed valve is characterized in that a first fixing plate (2) and a second fixing plate (3) which are provided with a valve handle (4) and a fixed valve handle (4) are connected above the valve body (1), an exhaust handle (14) is embedded in the valve handle (4), the valve handle (4) is connected with a water-sealed valve through a hollow pipe (6), and the rotation of a water-sealed valve (5) is controlled by rotating the valve handle (4) so as to achieve the purpose of controlling a water channel; the exhaust handle is connected with an exhaust pipe (16), the exhaust pipe (16) is nested in the hollow pipe (6), the exhaust pipe (16) can rotate in the hollow pipe (6), an outer exhaust hole (12) and an inner exhaust hole (13) which are matched with each other are respectively arranged on the pipe walls of the hollow pipe (6) and the exhaust pipe (16) which are close to the top of the inner wall of the valve body, and an exhaust port (11) communicated with the inner cavity of the exhaust pipe (16) is arranged at the top of the exhaust handle; when the exhaust is needed, the exhaust handle (14) is rotated to enable the outer exhaust holes (12) and the inner exhaust holes (13) to be overlapped, and the gas above the inner part of the valve body (1) is exhausted through the exhaust pipe (16) and the exhaust port (11).

2. The exhaust butterfly valve of claim 1, wherein: and a water sealing plug (15) is arranged on the inner wall of the hollow pipe (6) on the horizontal plane where the outer exhaust hole (12) is located, the water sealing plug is matched with the inner exhaust hole (13), and when the inner exhaust hole is rotated to coincide with the water sealing plug, the valve body (1) is not communicated with the outside.

3. The exhaust butterfly valve of claim 2, wherein: a floater (8) is arranged in a cavity of the exhaust pipe (16), a thin neck is arranged between the cavity and the exhaust port, and the floater can be clamped into the thin neck to seal the cavity.

4. The exhaust butterfly valve of claim 3, wherein: the head of the floater (8) is embedded with a water sealing rubber ring (18).

5. The exhaust butterfly valve of claim 1, wherein: an outer sleeve pile (7) and an inner sleeve pile (9) are arranged below the valve body (1) and are respectively used for being matched with the hollow pipe (6) and the exhaust pipe (16) to rotate.

6. The exhaust butterfly valve of claim 1, wherein: the first fixing plate (2) and the second fixing plate (3) are fastened through screws (17).

7. The exhaust butterfly valve of claim 1, wherein: the exhaust holes (11) are provided with grids.

Technical Field

The invention relates to the field of industrial pipeline valves, in particular to an exhaust butterfly valve.

Background

In agricultural irrigation in China, as the drainage pipeline is too long, the valve is assembled and a special exhaust valve is also arranged, so that the economic cost is increased to a great extent.

The butterfly valve on the market at present only is used for the drainage, and the valve often can damage the valve because water hammer and cavitation occasionally take place in the pipeline in the drainage process, and the dual-purpose valve of exhaust accuse water is badly needed at present.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides an exhaust butterfly valve capable of exhausting gas in a pipeline.

In order to achieve the purpose, the technical scheme of the invention is as follows:

the utility model provides an exhaust butterfly valve, includes the valve body and sets up the water sealing valve in the valve body, is connected with sealed rubber ring, its characterized in that on the water sealing valve: the valve body is connected with a valve handle and a first fixing plate and a second fixing plate which are used for fixing the valve handle, an exhaust handle is embedded in the valve handle, the valve handle is connected with a water sealing valve through a hollow pipe, and the rotation of the water sealing valve is controlled by rotating the valve handle, so that the purpose of controlling a water channel is achieved; the exhaust handle is connected with the exhaust pipe, the exhaust pipe is nested in the hollow pipe, the exhaust pipe can rotate in the hollow pipe, an outer exhaust hole and an inner exhaust hole which are matched are respectively arranged on the pipe walls of the hollow pipe close to the top of the inner wall of the valve body and the exhaust pipe, and an exhaust port communicated with an inner cavity of the exhaust pipe is arranged at the top of the exhaust handle; when the exhaust is needed, the exhaust handle is rotated to enable the outer exhaust hole and the inner exhaust hole to be overlapped, and the gas above the inner part of the valve body is exhausted through the exhaust pipe and the exhaust port.

And when the inner exhaust hole is rotated to coincide with the water sealing plug, the valve body is not communicated with the outside.

A floater is arranged in a cavity of the exhaust pipe, a thin neck is arranged between the cavity and the exhaust port, and the floater can be clamped into the thin neck to seal the cavity.

The head of the floater is embedded with a water sealing rubber ring.

And an outer sleeve pile and an inner sleeve pile are arranged below the valve body and are respectively used for matching the hollow pipe and the exhaust pipe to rotate.

The first fixing plate and the second fixing plate are fastened through screws.

The exhaust hole is provided with a grid, so that sand and insects can be effectively prevented from entering the exhaust hole to influence the exhaust.

Compared with the prior art, the invention has the following advantages:

1. the exhaust device is assembled on the butterfly valve, so that the water hammer phenomenon of the pipeline can be effectively prevented, and the pipeline and the valve are prevented from being damaged;

2. the cost can be greatly saved by adding the exhaust device, and other exhaust devices do not need to be additionally installed while the exhaust butterfly valve is assembled;

3. the exhaust device of the exhaust butterfly valve can realize manual and automatic integration and the like, and when exhaust is needed, the exhaust channel can be opened by rotating the exhaust handle, and gas is exhausted through the floater; when the air exhaust is not needed, the air exhaust handle can be closed to be used as a water exhaust valve.

Drawings

Fig. 1 is a schematic structural diagram of an exhaust butterfly valve according to an embodiment of the present invention.

Detailed Description

The invention is described in further detail below with reference to the figures and the detailed description.

As shown in figure 1, an exhaust butterfly valve comprises a valve body 1 and a water sealing valve 5 arranged in the valve body, wherein the water sealing valve 5 is connected with a sealing rubber ring 10, and the exhaust butterfly valve is characterized in that: a valve handle 4 and a first fixing plate 2 and a second fixing plate 3 for fixing the valve handle 4 are connected above the valve body 1, an exhaust handle 14 is embedded in the valve handle 4, the valve handle 4 is connected with a water sealing valve through a hollow pipe 6, and the rotation of a water sealing valve 5 is controlled by rotating the valve handle 4 so as to achieve the purpose of controlling a water path; the exhaust handle is connected with an exhaust pipe 16, the exhaust pipe 16 is nested in the hollow pipe 6, the exhaust pipe 16 can rotate in the hollow pipe 6, the pipe walls of the hollow pipe 6 and the exhaust pipe 16 close to the top of the inner wall of the valve body are respectively provided with an outer exhaust hole 12 and an inner exhaust hole 13 which are matched, and the top of the exhaust handle is provided with an exhaust port 11 communicated with the inner cavity of the exhaust pipe 16; when the exhaust is required, the exhaust handle 14 is turned to overlap the outer exhaust holes 12 and the inner exhaust holes 13, and the gas above the inside of the valve body 1 is exhausted through the exhaust pipe 16 and the exhaust port 11.

The inner wall of the hollow pipe 6 on the horizontal plane of the outer exhaust hole 12 is provided with a water sealing plug 15 which is matched with the inner exhaust hole 13, and when the inner exhaust hole is rotated to coincide with the water sealing plug, the valve body 1 is not communicated with the outside.

A floater 8 is arranged in a cavity of the exhaust pipe 16, a thin neck is arranged between the cavity and the exhaust port, and the floater can be clamped in the thin neck to seal the cavity.

The head of the floater 8 is embedded with a water sealing rubber ring 18.

An outer sleeve pile 7 and an inner sleeve pile 9 are arranged below the valve body 1 and are respectively matched with the hollow pipe 6 and the exhaust pipe 16 to rotate.

The first fixing plate 2 and the second fixing plate 3 are fastened by screws 17.

The grid is arranged on the exhaust hole 11, so that sand and insects can be effectively prevented from entering the grid, and the exhaust is influenced.

When the butterfly valve is opened and water flows through the valve, the exhaust handle is rotated to enable the outer exhaust hole 12 and the inner exhaust hole 13 to be superposed, if bubbles exist in the valve body 1, the bubbles enter the exhaust port through the floater to exhaust the gas, and after the gas is completely exhausted, the floater floats upwards by water pressure in the pipeline, so that the water flow cannot be exhausted through the exhaust hole; and under the condition of completely not using exhaust, the valve can be used as a valve for controlling the waterway switch like a common butterfly valve.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.