CN209800749U

CN209800749U - Air valve for eliminating hammer

Info

Publication number: CN209800749U
Application number: CN201920434271.6U
Authority: CN
Inventors: 杨玉明
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-01
Filing date: 2019-04-01
Publication date: 2019-12-17
Anticipated expiration: 2029-04-01

Abstract

The utility model provides a hammer air valve disappears relates to water hammer and eliminates technical field, include: go up casing and the lower casing of being connected with last casing, go up and connect through the connecting plate that has the first exhaust hole that is used for carminative between casing and the lower casing, go up the first built-in space that forms and external intercommunication between casing and the connecting plate, form the built-in space of second between casing and the connecting plate down, be provided with the float in the built-in space of second, the upper surface of float can cover first exhaust hole, be provided with the buffer board that has the through-hole in the first built-in space and have the baffle of second exhaust hole, the upper surface of buffer board can cover the second exhaust hole, be provided with a plurality of guide posts on the baffle, the buffer board cover is established on the guide post, casing bottom and pipeline intercommunication down. Through setting up a plurality of guide posts for the buffer board slides from top to bottom more smoothly, and the location is more accurate, thereby obtains accurate exhaust numerical value of limiting quantity of, has higher practical value.

Description

Air valve for eliminating hammer

Technical Field

The utility model belongs to the technical field of the water hammer elimination technique and specifically relates to a hammer air valve disappears is related to.

Background

The water hammer is a phenomenon that large pressure fluctuation is caused and vibration is caused due to rapid change of fluid flow in a closed pipeline system, and is also called water hammer. The instantaneous pressure can greatly exceed the normal pressure and often produce destructive effects. In order to prevent or reduce the water hammer effect, corresponding elimination measures can be taken, such as delaying the opening and closing time of a pipeline or a pump, installing a hammer eliminating air valve and the like. The hammer-eliminating air valve has one sealed air containing cavity inside and one buffering board below, and when the shock wave is introduced into the water hammer eliminator, the water shock wave acts on the buffering board and the buffering board moves towards the air containing cavity. The stroke of the buffer plate is related to the gas pressure in the gas containing cavity and the size of the water shock wave, and the buffer plate moves up and down under the dual actions of gas with certain pressure and irregular water shock to form dynamic balance, so that irregular water shock wave oscillation is effectively eliminated.

The buffer plate of the existing hammer-eliminating air valve slides along the guide of a single guide post, is easy to laterally deviate and block, and leads to inaccurate sealing position of the buffer plate, thereby causing inaccurate quantity-limiting exhaust numerical values.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hammer air valve disappears through setting up a plurality of guide posts for the buffer board slides from top to bottom more smoothly, and the location is more accurate, thereby obtains accurate quantity of limit exhaust numerical value, has higher practical value.

In order to achieve the above purpose, the utility model provides a following technical scheme:

The utility model provides a pair of hammer air valve disappears, include: go up the casing and with go up the casing lower casing that the casing is connected, go up the casing with connect through the connecting plate that has the first exhaust hole that is used for carminative between the casing down, go up the casing with form the first built-in space with external intercommunication between the connecting plate, down the casing with form the built-in space of second between the connecting plate, be provided with the float in the built-in space of second, the upper surface of float can cover first exhaust hole, be provided with the buffer board that has the through-hole and the baffle that has the second exhaust hole in the first built-in space, the upper surface of buffer board can cover the second exhaust hole, be provided with a plurality of guide posts on the baffle, the buffer board cover is established on the guide post, casing bottom and pipeline intercommunication down.

Preferably, the floater comprises an upper floater provided with an exhaust channel and a lower floater, the bottom of the upper floater is provided with a convex part, the top of the lower floater is provided with a concave part, and the bottom surface of the convex part is connected with the exhaust channel; and a communication port through which the convex portion can be inserted into the concave portion.

Preferably, a cavity with a cavity is arranged in the second built-in space, the upper floater and the lower floater are arranged in the cavity, the upper floater and the lower floater can slide up and down along the inner wall of the cavity, and the inner wall of the cavity is connected with the connecting plate.

Preferably, the lower surface of the lower floater is an arc surface, and the bottom surface of the inner wall of the cavity is correspondingly provided with the arc surface and is abutted against the lower surface of the lower floater.

Preferably, a stopper for limiting the buffer plate is disposed on an inner wall of the first built-in space, and an upper surface of the stopper is detachably connected to a lower surface of the buffer plate.

Preferably, the stopper is disposed on an inner wall of the first built-in space.

Preferably, a dust cover is arranged at the top of the first built-in space.

Preferably, the number of the guide posts is four.

Preferably, a sealing rubber pad is arranged in the concave part.

Preferably, the material of the float is plastics.

The utility model provides a technical scheme can include following beneficial effect:

The buffer plate of the existing hammer-eliminating air valve slides along the guide of a single guide post, is easy to laterally deviate and block, and leads to inaccurate sealing position of the buffer plate, thereby causing inaccurate quantity-limiting exhaust numerical values. The utility model provides a pair of eliminate hammer air valve is applied to among the water hammer elimination technical field, through setting up a plurality of guide posts for the buffer board slides from top to bottom more smoothly, and the location is more accurate, thereby obtains accurate exhaust numerical value of limiting quantity, has higher practical value.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

fig. 1 is a schematic structural view of a hammer-eliminating air valve according to an embodiment of the present invention;

Fig. 2 is a schematic view of a first built-in space structure of a hammer-eliminating air valve according to an embodiment of the present invention.

In the figure: 1. an upper housing; 2. a lower housing; 3. a through hole; 4. a connecting plate; 5. a first built-in space; 6. a second built-in space; 7. a float; 701. an upper float; 702. a lower float; 8. a buffer plate; 9. a guide post; 10. a cavity; 11. a stopper; 12. a baffle plate; 13. a second vent hole; 14. and a dust cover.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Particular embodiments of the present invention provide a hammer-eliminating air valve, as shown in fig. 1 and 2, comprising: go up casing 1 and the lower casing 2 of being connected with last casing 1, go up and be connected through the connecting plate 4 that has the first exhaust hole 3 that is used for carminative between casing 1 and the lower casing 2, go up and form the first built-in space 5 with external intercommunication between casing 1 and the connecting plate 4, form the built-in space 6 of second between casing 2 and the connecting plate 4 down, be provided with float 7 in the built-in space 6 of second, the upper surface of float 7 can cover first exhaust hole 3, be provided with buffer board 8 that has the through-hole and baffle 12 that has second exhaust hole 13 in the first built-in space 5, the upper surface of buffer board 8 can cover second exhaust hole 13, be provided with a plurality of guide posts 9 on baffle 12, the buffer board 8 cover is established on guide post 9, casing 2 bottom and pipeline intercommunication down. When water is introduced into the pipeline, high-pressure gas in the pipeline is discharged from the first exhaust hole 3 and the second exhaust hole 13, after a period of time, because the gas pressure in the first built-in space 5 and the second built-in space 6 is continuously increased, the buffer plate 8 is upwards supported by the gas, the buffer plate 8 upwards slides along the guide columns 9 until covering the second exhaust hole 13, and at the moment, the gas slowly discharges through the through holes after flowing through the first exhaust hole 3, so that the water hammer is eliminated. Along with the discharge of gas, water gets into second built-in space 5 gradually, and float 7 rises upwards along with the rising of surface of water, thereby stops the exhaust until covering first exhaust hole 3, and buffer board 8 slides along guide post 9 and returns to the original position, waits for next arrival of high-pressure gas, when the pipeline negative pressure, carries out the tonifying qi through first exhaust hole 3 and second exhaust hole 13. The guide post sets up to a plurality ofly for buffer board 8 slides from top to bottom more smoothly, and the location is more accurate, thereby obtains accurate limit amount exhaust numerical value.

As an alternative implementation, in the embodiment of the present invention, as shown in fig. 1 and fig. 2, the float 7 includes an upper float 701 and a lower float 702 provided with an exhaust passage, the bottom of the upper float 701 is provided with a convex portion, the top of the lower float 702 is provided with a concave portion, the bottom of the convex portion is communicated with the exhaust passage, and the convex portion can be inserted into the concave portion. When water gradually enters the second built-in space 5, the lower floater 702 and the upper floater 701 gradually rise until the upper floater 701 covers the first exhaust hole 3, the convex part of the upper floater 701 is inserted into the concave part of the lower floater 702 to block the exhaust channel, sealing at the moment is guaranteed, when exhaust is stopped, the buffer plate 8 slides along the guide column 9 to be in the original position, the water level at the moment drops, the upper floater 701 and the lower floater 702 move downwards under the action of gravity, sealing of the exhaust channel is broken, a small amount of gas is exhausted from the exhaust channel, and by means of the arrangement, normal exhaust when the water level drops is guaranteed while sealing is guaranteed.

As an optional implementation manner, in the embodiment of the present invention, as shown in fig. 1 and fig. 2, a cavity 10 having a cavity is disposed in the second built-in space 6, the upper float 701 and the lower float 702 are disposed in the cavity 10, both the upper float 701 and the lower float 702 can slide up and down along the inner wall of the cavity 10, and the inner wall of the cavity 10 is connected to the connecting plate 4. So set up, go up float 701 and float 702 float in cavity 10 down, go up float 701 and float 702 float more stable down, the motion is more sensitive, and the sealed between last float 701 and the first exhaust hole 3 is more reliable.

As an optional implementation manner, in the specific embodiment of the present invention, as shown in fig. 1 and fig. 2, the lower surface of the lower float 702 is an arc surface, and the bottom surface of the inner wall of the cavity 10 is correspondingly set to be an arc surface and abuts against the lower surface of the lower float 702. With such an arrangement, when the lower float 702 is not subjected to buoyancy, the lower surface of the lower float 702 is more closely connected to the bottom surface of the inner wall of the chamber 10.

as an optional implementation manner, in the embodiment of the present invention, as shown in fig. 1 and fig. 2, a stopper 11 for limiting the buffer plate 8 is disposed on an inner wall of the first built-in space 5, and an upper surface of the stopper 11 is detachably connected to a lower surface of the buffer plate 8. The dog 11 sets up on 1 inner wall of last casing, and the dog 11 upper surface can block the buffer board 8 whereabouts with the contact of 8 lower surfaces of buffer board, is about to unsettled setting between buffer board 8 and the connecting plate 4, guarantees gaseous unblocked.

As an alternative embodiment, in the embodiment of the present invention, as shown in fig. 1 and fig. 2, the stopper 11 is disposed on the inner wall of the first built-in space 5. That is, one end of the stopper 11 is fixedly connected to the inner wall of the first built-in space 5, and the buffer plate 8 is contacted with the stopper 11 and does not fall down when falling down.

As an alternative implementation manner, in the embodiment of the present invention, as shown in fig. 1 and fig. 2, a dust cover 14 is disposed on the top of the first built-in space 5. Namely, a first built-in space 5 communicated with the outside is formed among the dust cap 14, the outer wall and the connecting plate 4, and the dust cap 14 is mounted on the outer wall by screws. With this arrangement, dust and foreign matter is effectively prevented from entering the first built-in space 5.

As an alternative implementation, in the embodiment of the present invention, as shown in fig. 1 and fig. 2, the number of the guide posts 9 is four. So set up for the buffer board 8 slides from top to bottom more stably, fixes a position more accurately.

As an optional implementation manner, in the embodiment of the present invention, as shown in fig. 1 and fig. 2, a sealing rubber pad is disposed in the concave portion. By such an arrangement, the sealability between the upper float 701 and the lower float 702 is increased.

As an optional implementation manner, in the embodiment of the present invention, as shown in fig. 1 and fig. 2, the material of the float 7 is plastic, so as to ensure that the float 7 can float in water.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A hammer-eliminating air valve comprising: the air conditioner comprises an upper shell (1) and a lower shell (2) connected with the upper shell (1), the upper shell (1) is connected with the lower shell (2) through a connecting plate (4) with a first exhaust hole (3) for exhausting air, a first built-in space (5) communicated with the outside is formed between the upper shell (1) and the connecting plate (4), a second built-in space (6) is formed between the lower shell (2) and the connecting plate (4), a floater (7) is arranged in the second built-in space (6), the upper surface of the floater (7) can cover the first exhaust hole (3), a buffer plate (8) with a through hole and a baffle (12) with a second exhaust hole (13) are arranged in the first built-in space (5), the upper surface of the buffer plate (8) can cover the second exhaust hole (13), the baffle (12) is provided with a plurality of guide posts (9), the buffer plate (8) is sleeved on the guide posts (9), and the bottom of the lower shell (2) is communicated with the pipeline.

2. The hammer-eliminating air valve according to claim 1, wherein the float (7) includes an upper float (701) and a lower float (702) provided with an exhaust passage, a convex portion is provided at a bottom of the upper float (701), a concave portion is provided at a top of the lower float (702), a bottom surface of the convex portion communicates with the exhaust passage, and the convex portion is insertable into the concave portion.

3. The air valve of claim 2, wherein a cavity (10) with a cavity is arranged in the second built-in space (6), the upper floater (701) and the lower floater (702) are arranged in the cavity (10), the upper floater (701) and the lower floater (702) can slide up and down along the inner wall of the cavity (10), and the inner wall of the cavity (10) is connected with the connecting plate (4).

4. The hammer-eliminating air valve according to claim 3, wherein the lower surface of the lower float (702) is a cambered surface, and the bottom surface of the inner wall of the cavity (10) is correspondingly provided with a cambered surface and is abutted against the lower surface of the lower float (702).

5. The hammer air valve according to claim 1, wherein a stopper (11) for stopping the falling of the cushion plate (8) is provided on an inner wall of the first built-in space (5), and an upper surface of the stopper (11) is detachably connected to a lower surface of the cushion plate (8).

6. A hammer air valve according to claim 5, wherein the stopper (11) is provided on an inner wall of the first built-in space (5).

7. A hammerless air valve according to claim 1, characterized in that a dust cap (14) is provided on top of the first built-in space (5).

8. A hammer air valve according to claim 1, wherein the number of the guide posts (9) is four.

9. The hammer air valve of claim 2 wherein a sealing rubber gasket is disposed within the recess.

10. A hammerless air valve according to claim 1 wherein the float (7) is of plastic material.