CN216200671U

CN216200671U - Exhaust valve with buffer device

Info

Publication number: CN216200671U
Application number: CN202122354301.2U
Authority: CN
Inventors: 李良福; 王吉兵; 胡艺平; 李铭良; 唐启炜
Original assignee: Quanwatts Valves Co ltd
Current assignee: Quanwa Valve Co ltd
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2022-04-05
Anticipated expiration: 2031-09-27

Abstract

The utility model provides an exhaust valve with a buffer device, which comprises a valve body and a valve cover, wherein the valve cover is fixedly arranged at the top of the valve body, the bottom of the valve body is provided with a water inlet, an exhaust pipe is fixedly arranged on the valve cover, two ends of the exhaust pipe respectively extend to the upper side and the lower side of the valve cover, the exhaust pipe is communicated with the valve body, a plurality of exhaust holes are formed in the peripheral side of the upper section of the exhaust pipe, an ejector rod is arranged in the exhaust pipe in a sliding and sealing mode along the axial direction, the top of a top plate penetrates through the exhaust pipe and is fixedly provided with a sealing cap, and the sealing cap is arranged outside the exhaust pipe in a sealing mode and can seal the exhaust holes. The connecting rod is rotatably mounted in the valve body, one end of the connecting rod is fixedly connected with the floating ball, the other end of the connecting rod is hinged to the ejector rod, the exhaust holes are circumferentially and uniformly distributed, a limiting block is fixedly mounted in the middle section of the ejector rod, sliding grooves are longitudinally formed in two sides of the inner wall of the exhaust pipe, and the limiting block is slidably mounted in the sliding grooves.

Description

Exhaust valve with buffer device

Technical Field

The utility model relates to an exhaust valve, in particular to an exhaust valve with a buffer device.

Background

In the sewage drainage pipeline, because a large amount of gas and trace dissolved gas in normal water supply exist in the initial pipe of water supply and drainage in the water delivery process, a sewage composite exhaust valve installed on the pipeline is required to be adopted to carry out a large amount of exhaust and trace exhaust, so that the water supply or drainage efficiency is improved, but in the process of a large amount of exhaust and closing of the sewage composite exhaust valve, a large amount of instantaneous water hammer which can spray out sewage in the pipeline and close the pipeline can be generated, the valve assembly and the pipeline accessory are easy to damage, environmental pollution is caused by light persons, and potential safety hazards are generated by heavy persons.

SUMMERY OF THE UTILITY MODEL

Therefore, in order to solve the above problems, the present invention provides an exhaust valve with a buffer device.

In order to achieve the technical problem, the exhaust valve with the buffer device comprises a valve body and a valve cover, wherein the valve cover is fixedly installed at the top of the valve body, a water inlet is formed in the bottom of the valve body, an exhaust pipe is fixedly installed on the valve cover, two ends of the exhaust pipe respectively extend to the upper side and the lower side of the valve cover, the exhaust pipe is communicated with the valve body, a plurality of exhaust holes are formed in the peripheral side of the upper section of the exhaust pipe, a push rod is arranged in the exhaust pipe in a sliding and sealing mode along the axial direction, the top of the top plate penetrates through the outside of the exhaust pipe and is fixedly provided with a sealing cap, and the sealing cap is arranged outside the exhaust pipe in a sealing mode and can seal and plug the exhaust holes. A connecting rod is rotatably mounted in the valve body, one end of the connecting rod is fixedly connected with the floating ball, and the other end of the connecting rod is hinged with the ejector rod.

The further improvement is that: a plurality of the exhaust holes are circumferentially and uniformly distributed.

The further improvement is that: the middle section fixed mounting of ejector pin has the stopper, the spout has vertically been seted up to the inner wall both sides of blast pipe, stopper slidable mounting is in the spout.

The further improvement is that: and a second spring used for balancing the gravity of the sealing cap is connected between the limiting block and the bottom of the sliding groove.

The further improvement is that: a magnet and an armature iron for attracting are arranged between the limiting block and the top of the sliding groove.

The further improvement is that: the valve body is internally provided with a support which is close to a water inlet and can be used for water flow to pass through, namely, the support is of a hollow structure, the top of the central shaft is fixedly provided with an upper limiting piece, the central shaft is sleeved with a buffer plate in a sliding manner, a first spring is connected between the upper end surface of the buffer plate and the upper limiting piece, and between the lower end surface of the buffer plate and the support, and a plurality of annular uniformly distributed through holes are formed in the buffer plate.

The further improvement is that: the water inlet of the valve body is fixedly provided with a filter plate.

By adopting the technical scheme, the utility model has the beneficial effects that:

the utility model discloses simple structure, convenient to use sets up the exhaust hole through the upper segment week side at the blast pipe to coaxial seal slidable mounting has the ejector pin in the blast pipe, and the ejector pin top is worn out between the blast pipe and fixed mounting has the sealing cap, and the sealing cap can seal the cover and establish outside the blast pipe and seal the exhaust hole, and forms ejector pin, connecting rod and floater lever structure, and then realizes switching on and ending of exhaust hole, with the function that realizes exhausting or seal and block water.

Drawings

Fig. 1 is a schematic structural view of a discharge valve with a buffering device according to an embodiment of the present invention.

Fig. 2 is a schematic view showing a normally open state of the exhaust valve with the damper device according to the embodiment of the present invention.

FIG. 3 is an enlarged partial view of the closure cap of the vent valve with a cushioning device in accordance with an embodiment of the present invention.

FIG. 4 is a schematic structural diagram of a buffer plate according to an embodiment of the utility model.

In the figure: the valve comprises a valve cover 1, a valve body 2, an exhaust pipe 3, a sealing cap 4, an exhaust hole 5, a mandril 6, a connecting rod 7, a floating ball 8, an upper limiting sheet 9, a through hole 10, a buffer plate 11, a central shaft 12, a first spring 13, a support 14, a filter plate 15, a water inlet 16, a limiting block 17, a sliding groove 18, an armature 19, a magnet 20 and a second spring 21.

Detailed Description

The utility model will now be further described with reference to the accompanying drawings and specific embodiments.

The first embodiment is as follows:

referring to fig. 1, the exhaust valve with a buffer device disclosed by the embodiment of the utility model comprises a valve body 2 and a valve cover 1, wherein the valve cover 1 is fixedly arranged at the top of the valve body 2, the bottom of the valve body 2 is provided with a water inlet 16, and water in an external pipeline enters the valve body 2 from the water inlet 16; fixed mounting has blast pipe 3 on the valve gap 1, and the both ends of blast pipe 3 extend respectively in the upper and lower both sides of valve gap 1, and 3 hypomere of blast pipe extend to valve body 2 promptly outside 3 upper segments of blast pipe extend to valve body 2, the lower extreme opening of blast pipe 3 and with valve body 2 intercommunication, a plurality of annular distribution's exhaust hole 5 has been seted up to the week side of 3 upper segments of blast pipe, the air in the valve body 2 is got into and is discharged by exhaust hole 5 by 3 bottom openings of blast pipe, and then forms the exhaust route.

An ejector rod 6 is arranged in the exhaust pipe 3 in a sliding mode along the axial direction in a sealing mode, the top of the ejector plate penetrates through the exhaust pipe 3 and is fixedly provided with a sealing cap 4, and the sealing cap 4 is sleeved outside the exhaust pipe 3 in a sealing mode and can be used for plugging the exhaust hole 5. The valve body 2 is rotatably provided with a connecting rod 7, one end of the connecting rod 7 is fixedly connected with the floating ball 8, and the other end of the connecting rod 7 is hinged with the ejector rod 6, so that the ejector rod 6, the connecting rod 7 and the floating ball 8 form a lever structure together. When the interior of the valve body 2 is in a high water level state as shown in fig. 1, the floating ball 8 rises, the ejector rod 6 is pulled to descend through the connecting rod 7, at the moment, the sealing cap 4 is in a low position and is sleeved outside the exhaust pipe 3 in a sealing manner, and the exhaust hole 5 is plugged at the same time, so that an exhaust channel is blocked and water leakage is prevented; when the interior of the valve body 2 is in a low water level state as shown in fig. 2, the floating ball 8 rises downwards, the ejector rod 6 is pulled to rise through the connecting rod 7, at the moment, the sealing cap 4 is in a high position and is separated from the exhaust hole 5 in a staggered mode, so that the exhaust channel is conducted, namely when the fluid pipeline is in a low water level state, the exhaust valve is in a normally open state, and the air pressure in the fluid pipeline is balanced.

Referring to fig. 3, in order to slidably guide the ejector rod 6, a limiting block 17 is fixedly installed at the middle section of the ejector rod 6, sliding grooves 18 are longitudinally formed in both sides of the inner wall of the exhaust pipe 3, and the limiting block 17 is slidably installed in the sliding grooves 18. In addition, be connected with second spring 21 between stopper 17 and the spout 18 bottom, this second spring 21 can be balanced the gravity of sealing cap 4 and connecting rod 7 to when guaranteeing the low water level, sealing cap 4 is reset jack-up in order to guarantee that exhaust hole 5 is always open. In addition, be provided with magnet 20 and armature 19 that are used for the actuation between stopper 17 and the top of spout 18, in this embodiment, magnet 20 installs on stopper 17, and armature 19 installs at spout 18 top, and then cooperates the reset of second spring 21 to lift and carry out high-order locking to sealing cap 4, and the skilled person in the art should know, exchanges the mounted position of magnet 20 and armature 19 and also can reach the same effect.

In order to prevent that instantaneous water hammer from causing the influence to valve body 2, lie in the valve body 2 and be close to 16 position fixed mounting of water inlet and have support 14 that can supply rivers to pass through, this support 14 is hollow out construction's support body promptly, and fixed mounting has center pin 12 on the support 14, and spacing piece 9 is gone up to the top fixed mounting of center pin 12, and sliding sleeve is equipped with buffer board 11 on the center pin 12, between the up end of buffer board 11 and last spacing piece 9, all be connected with first spring 13 between buffer board 11's the lower terminal surface and the support 14, two first spring 13 is all established on center pin 12, as shown in fig. 4, a plurality of hoop evenly distributed's through-hole 10 has been seted up on the buffer board. When the water hammer enters the valve body 2, the impact force acts on the solid part of the buffer sheet and is buffered by the first spring 13, so that most of water hammer impact is eliminated, and the valve body 2 is protected.

In order to prevent large particle impurities in the water flow from entering the valve body 2, a filter plate 15 is fixedly arranged at the water inlet 16 of the valve body 2.

Modifications and variations of the present invention are within the scope of the claims and are not limited by the disclosure of the embodiments.

Claims

1. The utility model provides an exhaust valve with buffer, includes valve body and valve gap, and valve gap fixed mounting has water inlet, its characterized in that at the valve body top at the valve body bottom: the exhaust valve is characterized in that an exhaust pipe is fixedly mounted on the valve cover, two ends of the exhaust pipe extend to the upper side and the lower side of the valve cover respectively, the exhaust pipe is communicated with the valve body, a plurality of exhaust holes are formed in the peripheral side of the upper section of the exhaust pipe, an ejector rod is arranged in the exhaust pipe in a sliding mode along axial sealing, the top of the top plate penetrates through the exhaust pipe and is fixedly mounted with a sealing cap, the sealing cap is arranged outside the exhaust pipe in a sealing mode and can seal the exhaust holes, a connecting rod is mounted in the valve body in a rotating mode, one end of the connecting rod is fixedly connected with the floating ball, and the other end of the connecting rod is hinged to the ejector rod.

2. The exhaust valve with a damping device according to claim 1, wherein: a plurality of the exhaust holes are circumferentially and uniformly distributed.

3. The exhaust valve with a damping device according to claim 1, wherein: the middle section fixed mounting of ejector pin has the stopper, the spout has vertically been seted up to the inner wall both sides of blast pipe, stopper slidable mounting is in the spout.

4. The exhaust valve with a damping device according to claim 3, wherein: and a second spring used for balancing the gravity of the sealing cap is connected between the limiting block and the bottom of the sliding groove.

5. The exhaust valve with a damping device according to claim 3, wherein: a magnet and an armature iron for attracting are arranged between the limiting block and the top of the sliding groove.

6. The exhaust valve with a damping device according to claim 1, wherein: the valve body is internally provided with a support which is close to a water inlet and can be used for water flow to pass through, namely, the support is of a hollow structure, the top of the central shaft is fixedly provided with an upper limiting piece, the central shaft is sleeved with a buffer plate in a sliding mode, a first spring is connected between the upper end surface of the buffer plate and the upper limiting piece, and between the lower end surface of the buffer plate and the support, and a plurality of annular uniformly distributed through holes are formed in the buffer plate.

7. The exhaust valve with a damping device according to claim 1, wherein: the water inlet of the valve body is fixedly provided with a filter plate.