CN210645424U - Anti-impurity stain-resistant water-hammer air valve - Google Patents

Abstract

The utility model discloses an anti dirty water hammer air valve of resisting, including the valve body, the lower extreme of valve body is equipped with the passageway that is linked together with the pipeline, is equipped with water filtering device in the passageway, and the lateral wall of passageway is equipped with the opening that supplies water filtering device to stretch into, and opening detachably is connected with the end cover. So set up, increased water filtering device, can filter the water that gets into in the air valve, get rid of aquatic impurity, avoid blockking up the air valve and influence its micro-exhaust function, improve the anti impurity of air valve, resistant sewage's performance, the reliable operation of guarantee air valve has solved among the prior art easy impurity of being in the aquatic of water hammer air valve micro-exhaust time and has blockked up, leads to losing the problem of micro-exhaust function.

Description

Anti-impurity stain-resistant water-hammer air valve

Technical Field

The utility model relates to a pipe-line delivery water exhaust technical field, more specifically say, relate to an anti dirty water hammer air valve that prevents pollution.

Background

The water hammer preventing air valve is one special exhaust valve for water pipeline and is used mainly in various water works, water supply engineering, city pipeline system, etc. When the pipeline is filled with water, the air in the air valve is automatically and quickly discharged through the large exhaust port of the air valve, so that the air in the pipeline is prevented from forming an air bag to block the flow of the water until the large exhaust port is closed, and the water cannot overflow the air valve; when water runs in the pipeline, air can be separated out from the water due to pressure, temperature change and the like, and then the micro exhaust port in the air valve can perform micro exhaust; when negative pressure occurs in the pipeline, the air valve can automatically and massively intake air, and the air valve is in a negative pressure air suction working state at the moment so as to prevent the pipeline from being damaged due to the negative pressure, eliminate the damage of a broken water column caused by a water hammer of the pump stopping of the pipeline and ensure the safe operation of the pipeline. However, the raw water in the pipeline usually contains impurities, and when the air valve is in a micro-exhaust working state, the impurities easily block the micro-exhaust port, so that the micro-exhaust function is lost. Therefore, how to solve the problem that the air valve of the water hammer is easily blocked by impurities in water when exhausting in a trace manner in the prior art, and the problem that the trace exhausting function is lost becomes an important technical problem to be solved by technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anti dirty water hammer air valve of resisting to easy the impurity jam of aquatic when solving among the prior art water hammer air valve micro exhaust, lead to losing the problem of micro exhaust function.

The utility model aims at realizing through the following technical scheme:

the utility model provides a pair of resistant dirty water hammer air valve of anti-contamination, which comprises a valve body, the lower extreme of valve body is equipped with the passageway that is linked together with the pipeline, be equipped with water filtering device in the passageway, the lateral wall of passageway is equipped with the confession water filtering device stretches into's opening, opening detachably is connected with the end cover.

Preferably, the water filtering device comprises a filter screen in an annular structure, and the filter screen is internally provided with a cavity for containing impurities in water.

Preferably, the screen is disposed in the channel at an angle, or the axial direction of the screen is perpendicular to the direction of water flow in the channel.

Preferably, still including setting up water filtering device, be used for wasing the cleaning brush of filterable impurity in the filter screen, and with the passageway is linked together, is used for discharging filterable impurity drain outside the passageway, the drain is equipped with the ooff valve.

Preferably, the cleaning brush include the brush-holder stud and with the brush head that the brush-holder stud is connected, the end cover is equipped with the confession the through-hole that the brush-holder stud passed, the brush-holder stud can be followed axial displacement of filter screen, in order to drive the brush head stretches into in the cavity of filter screen.

Preferably, the washing brush further comprises a driving device for driving the brush rod to rotate and a power supply for supplying power to the driving device.

Preferably, one end of the water filtering device, which is close to the end cover, is provided with a negative pressure air suction assembly, and when the anti-contamination, anti-fouling and waterproof hammer air valve is in a negative pressure air suction working state, the negative pressure air suction assembly is opened so as to enable air to enter the channel.

Preferably, the negative pressure suction assembly comprises a vent hole arranged on the end cover, a baffle plate used for shielding the vent hole, and an elastic member fixedly arranged in the water filtering device and connected with the baffle plate, so that the baffle plate is abutted against the end cover through the elastic member.

Preferably, the outer surface of the baffle is wrapped with a rubber layer.

Preferably, the screen is a stainless steel screen.

The utility model provides an among the technical scheme, an anti dirty water hammer air valve that prevents pollution includes the valve body, and the lower extreme of valve body is equipped with the passageway that is linked together with the pipeline, is equipped with water filtering device in the passageway, and the lateral wall of passageway is equipped with the opening that supplies water filtering device to stretch into, and opening detachably is connected with the end cover. So set up, increased water filtering device, can filter the water that gets into in the air valve, get rid of aquatic impurity, avoid blockking up the air valve and influence its micro-exhaust function, improve the anti impurity of air valve, resistant sewage's performance, the reliable operation of guarantee air valve has solved among the prior art easy impurity of being in the aquatic of water hammer air valve micro-exhaust time and has blockked up, leads to losing the problem of micro-exhaust function.

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 first schematic view of an anti-contamination and anti-fouling air valve of the present invention;

fig. 2 is a schematic structural view of the anti-contamination and anti-fouling air valve of the present invention.

In fig. 1-2:

the device comprises a valve body-1, a channel-2, an end cover-3, a filter screen-4, a cleaning brush-5, a sewage outlet-6, a baffle-7, a brush rod-8, a brush head-9, a stop valve-10 and a guide bracket-11.

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.

This embodiment provides a resistant dirty water hammer air valve of anti-contamination, has solved the easy impurity jam of aquatic of water hammer air valve trace exhaust among the prior art, leads to losing the problem of trace exhaust function.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. The embodiments described below do not limit the scope of the invention described in the claims. Further, the entire contents of the configurations shown in the following embodiments are not limited to those necessary as a solution of the invention described in the claims.

Referring to fig. 1-2, the air valve for an anti-contamination and stain-resistant water hammer provided in this embodiment includes a valve body 1, a channel 2 communicated with a pipeline is disposed at a lower end of the valve body 1, raw water in the pipeline can enter the valve body 1 from the channel 2, a water filtering device is disposed in the channel 2, an opening for the water filtering device to extend into is disposed on a side wall of the channel 2, and an end cover 3 is detachably connected to the opening. Optionally, the end cover 3 is detachably mounted on the side wall of the channel 2 through bolts, so that the water filtering device is convenient to overhaul, replace and the like. So set up, water filtering device has been increased, former water in the pipeline must earlier pass through water filtering device, filters the raw water, gets rid of aquatic impurity, could get into the air valve to avoid blockking up the air valve and influence its micro-exhaust function, improve the air valve anti-impurity, resistant sewage's performance, guarantee air valve reliable operation, easy impurity of aquatic blockked up when having solved among the prior art waterproof hammer air valve micro-exhaust, lead to losing the problem of micro-exhaust function. In addition, the anti-pollution and stain-resistant water hammer air valve is also provided with a small amount of air outlets, and the arrangement of the water filtering device can also avoid impurities in water from blocking the small amount of air outlets so as to influence the small amount of air exhausting function of the water filtering device. It should be noted that the "lower end" of the valve body mentioned herein refers to the arrangement state of the anti-contamination and anti-fouling waterproof hammer air valve as shown in fig. 1 and 2, i.e. the lower end of the valve body is located at the bottom in the figure.

In this embodiment, the water filtering means comprises a sieve 4 having an annular structure, and the inside of the sieve 4 has a cavity for containing impurities in the water. Wherein, the filter aperture of the filter screen 4 can be determined according to the actual use environment. So set up, the filter screen can filter the impurity of former aquatic, prevents that silt, gravel and sand etc. from getting into the valve body. Preferably, the screen 4 is a stainless steel screen. By the design, the problem that the filter screen is easy to rust in a humid environment for a long time is avoided, the service life is prolonged, and meanwhile, the filter screen is firm in structure and convenient to fix and install.

As shown in fig. 1, the screen 4 may be obliquely disposed within the passage 2; alternatively, as shown in fig. 2, the axial direction of the screen 4 is perpendicular to the direction of water flow in the channel 2. Set up like this, the former water in the pipeline gets into the valve body, is filtered by the filter screen in the passageway promptly, can effectively ensure each subassembly reliable operation in air valve upper portion, improves the life of air valve. Alternatively, the screen 4 may be provided in a cylindrical shape, as shown in fig. 1, and when the screen 4 is placed obliquely, the bottom thereof may be positioned corresponding to the channel 2; as shown in fig. 2, the direction of the arrow is the direction of the water flow, and the filter screen 4 is horizontally disposed with its side wall corresponding to the channel 2. It should be noted that the term "bottom" of the filter screen refers to the arrangement of the anti-contamination and anti-soiling air valve of the water hammer as shown in fig. 1, i.e. the bottom of the filter screen is shown below the drawing.

In this embodiment, the anti-contamination and anti-fouling water hammer air valve further comprises a cleaning brush 5 arranged in the water filtering device and used for cleaning the filtered impurities in the filter screen 4, and a sewage draining outlet 6 communicated with the channel 2 and used for discharging the filtered impurities out of the channel 2, wherein the sewage draining outlet 6 is provided with a switch valve. Alternatively, the on-off valve may be a shut-off valve 10 for opening or closing the sewage drain 6. So set up, if impurity accumulation is when more in the filter screen, start the cleaning brush and wash the filter screen, open the drain simultaneously, can be with the impurity discharge in the cavity, regularly the clearance can effectively guarantee that the filter screen has better filtering capability.

As an alternative embodiment, the washing brush 5 comprises a brush rod 8 and a brush head 9 connected with the brush rod 8, the end cover 3 is provided with a through hole for the brush rod 8 to pass through, the brush rod 8 can move along the axial direction of the filter screen 4 to drive the brush head 9 to extend into the cavity of the filter screen 4, so that the brush head 9 can completely clean the whole filter screen 4. Optionally, the brush head 9 is a stainless steel brush, a guide bracket 11 connected with the end cover 3 through a bolt is further arranged in the water filtering device, and a brush rod through hole for the brush rod 8 to pass through is formed in the guide bracket 11. Preferably, the washing brush 5 further comprises a driving means for driving the rotation of the brush bar 8 and a power supply for supplying power to the driving means. The driving device can be a motor, and the brush rod 8 is driven to rotate by the motor. Set up like this, can realize electronic clean, slew velocity is very fast, drives impurity more easily and leaves filter screen surface, and clean efficient. In actual use, if the drill bit of the portable electric drill can be taken down and replaced by being connected with the brush rod 8, the electric cleaning is realized. Of course, other driving devices can be used as long as the conditions that the brush rod 8 is matched with the brush rod and can be driven to rotate are met.

Because increased water filtering device in the air valve, must have an influence to the inspiratory capacity of air valve, so, in the embodiment of the utility model discloses a, water filtering device is close to the one end of end cover 3 and is equipped with the negative pressure subassembly of breathing in, and when anti dirty water hammer air valve of anti-pollution was in the negative pressure operating condition of breathing in, the negative pressure subassembly of breathing in was opened to make in the air admission passageway 2. By the design, the condition that the air suction quantity of the air valve is reduced can be effectively compensated, so that the air valve can normally work under negative pressure.

In a preferred embodiment of the present invention, the negative pressure suction assembly includes a vent hole disposed on the end cover 3, a baffle 7 for blocking the vent hole, and an elastic member fixedly disposed in the water filtering device and connected to the baffle 7, so that the baffle 7 abuts against the end cover 3 through the elastic member. The elastic piece can adopt a stainless steel spring, one end of the spring is fixed, the other end of the spring is connected with the baffle 7, the baffle 7 is pressed on the end cover 3 to block the vent hole on the end cover 3, and air leakage and water leakage are prevented. When the anti-impurity stain-resistant water hammer air valve is in a negative pressure air suction working state, external air enters from the vent hole, the baffle 7 is pushed to be separated from the end cover 3, and the vent hole is opened to be communicated with the outside to supplement air suction; when the air valve of the anti-pollution and anti-pollution water hammer stops sucking air, the spring recovers deformation, the baffle 7 is pressed on the end cover 3 again, and the next working cycle is waited to enter. The design like this, simple structure easily implements, and the air intake when effectively guaranteeing the air valve negative pressure can not influence the air valve and normally work.

In the embodiment of the utility model, the outer surface coating of baffle 7 has the rubber layer, and multiplicable surface friction prevents that baffle 7 and end cover 3 contact from skidding, exposing the air vent. The baffle 7 can be made of iron plates, and rubber is wrapped outside the baffle to prevent the iron plates from rusting. As shown in fig. 1 and 2, the through hole of the end cover 3 through which the brush rod 8 passes and the vent hole in the vacuum suction assembly can be the same through hole, so that the brush rod 8 of the cleaning brush 5 passes through the baffle 7, and a sealing ring is arranged between the brush rod 8 and the baffle 7 to prevent the device from leaking water; in addition, one end of the elastic member in the negative pressure suction module may be fixedly coupled to the guide bracket 11.

It should be noted that, the above-mentioned devices or components with different functions in each embodiment may be combined, for example, in a preferred embodiment of the present invention, the anti-contamination and anti-fouling air valve includes a valve body 1, a channel 2 communicated with a pipeline is provided at a lower end of the valve body 1, a water filtering device is provided in the channel 2, an opening into which the water filtering device extends is provided on a side wall of the channel 2, and an end cover 3 is detachably connected to the opening. The water filtering device is of a cylindrical structure and comprises a filter screen 4 which is of an annular structure and is made of stainless steel, a cavity for containing impurities in water is formed in the filter screen 4, the filter screen 4 is obliquely arranged in the channel 2, or the axial direction of the filter screen 4 is perpendicular to the water flow direction in the channel 2. The anti-impurity stain-resistant water hammer air valve further comprises a cleaning brush 5 which is arranged in the water filtering device and used for cleaning the impurities filtered in the filter screen 4, and a sewage draining outlet 6 which is communicated with the channel 2 and used for discharging the filtered impurities out of the channel 2, wherein the sewage draining outlet 6 is provided with a switch valve which can be a stop valve 10. The cleaning brush 5 includes brush-holder stud 8 and brush head 9 that is connected with brush-holder stud 8, and brush head 9 is the stainless steel brush, and end cover 3 is equipped with the through-hole that supplies brush-holder stud 8 to pass, and brush-holder stud 8 can be followed filter screen 4 axial displacement, in order to drive brush head 9 and stretch into the cavity of filter screen 4, and brush head 9 can clear up whole filter screen 4 completely like this. A guide support 11 connected with the end cover 3 through a bolt is also arranged in the water filtering device, and a brush rod through hole for the brush rod 8 to pass through is arranged on the guide support 11. The washing brush 5 further includes a driving means for driving the rotation of the brush bar 8 and a power supply for supplying power to the driving means, thereby achieving electric cleaning. In addition, the one end that water filtering device is close to end cover 3 still is equipped with the negative pressure subassembly of breathing in, and when anti-dirty water hammer air valve was in the negative pressure and breathes in operating condition, the negative pressure subassembly of breathing in was opened to make in the air admission passageway 2, so as to remedy because of setting up the defect that the air-intake reduces when filter screen 4 caused the negative pressure. The negative pressure air suction assembly comprises a vent hole arranged on the end cover 3, a baffle 7 used for shielding the vent hole, and an elastic piece fixedly arranged in the water filtering device and connected with the baffle 7, so that the baffle 7 is abutted against the end cover 3 through the elastic piece to block the vent hole. The elastic component is a stainless steel spring, and the outer surface of the baffle 7 is wrapped with a rubber layer. As shown in fig. 1 and 2, the through hole of the end cover 3 for the brush rod 8 to pass through and the vent hole in the vacuum suction assembly are the same through hole, the brush rod 8 of the cleaning brush 5 passes through the baffle 7, and a sealing ring is arranged between the brush rod 8 and the baffle 7 for preventing the device from leaking water; in addition, the spring in the vacuum suction module is fixedly connected to the guide bracket 11.

So set up, water filtering device has been increased, former water in the pipeline must first pass through water filtering device, filter the raw water, get rid of aquatic impurity, just can get into the air valve, avoid blockking up the air valve and influence its micro-exhaust function, improve the air valve anti-impurity, the resistant sewage's performance, guarantee air valve reliable operation, easy impurity blocking by the aquatic when having solved among the prior art waterproof hammer air valve micro-exhaust, lead to losing the problem of micro-exhaust function, also can avoid aquatic impurity to block a small amount of gas vents simultaneously, thereby influence its a small amount of exhaust function. In addition, still be equipped with electronic cleaning brush in the air valve, can effectively clean the filter screen, prolong its life, the negative pressure subassembly of breathing in still can guarantee the inspiratory capacity of air valve.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. The air valve is characterized by comprising a valve body (1), wherein the lower end of the valve body (1) is provided with a channel (2) communicated with a pipeline, a water filtering device is arranged in the channel (2), the side wall of the channel (2) is provided with an opening for the water filtering device to extend into, the opening is detachably connected with an end cover (3), the water filtering device comprises a filter screen (4) in an annular structure, and a cavity for containing impurities in water is arranged in the filter screen (4); still including setting up in the water filtering device, be used for wasing the cleaning brush (5) of filterable impurity in filter screen (4), and with passageway (2) are linked together, are used for discharging filterable impurity drain (6) outside passageway (2), drain (6) are equipped with switch valve.

2. The anti-fouling, water-hammer-resistant air valve according to claim 1, wherein the screen (4) is disposed obliquely in the channel (2) or the axial direction of the screen (4) is perpendicular to the water flow direction in the channel (2).

3. The anti-contamination and water hammer air valve according to claim 1, wherein the cleaning brush (5) comprises a brush rod (8) and a brush head (9) connected to the brush rod (8), the end cap (3) is provided with a through hole for the brush rod (8) to pass through, and the brush rod (8) can move along the axial direction of the filter screen (4) to drive the brush head (9) to extend into the cavity of the filter screen (4).

4. The anti-contamination, anti-water hammer air valve according to claim 3, wherein the washing brush (5) further comprises a driving means for driving the rotation of the brush bar (8) and a power source for supplying power to the driving means.

5. The anti-fouling, stain-resistant, water-hammer-resistant air valve according to claim 1, wherein the end of the water filtering means adjacent to the end cap (3) is provided with a negative pressure suction assembly which opens to allow air to enter the channel (2) when the anti-fouling, stain-resistant, water-hammer-resistant air valve is in a negative pressure suction operating state.

6. The anti-fouling and anti-fouling waterproof hammer air valve according to claim 5, wherein the negative pressure suction assembly comprises a vent hole provided in the end cap (3), a baffle plate (7) for blocking the vent hole, and an elastic member fixedly provided in the water filtering device and connected to the baffle plate (7) so that the baffle plate (7) abuts against the end cap (3) through the elastic member.

7. The anti-fouling, waterproof hammer air valve according to claim 6, wherein the outer surface of the baffle (7) is coated with a rubber layer.

8. The anti-fouling, waterproof hammer air valve of claim 1, wherein the screen (4) is a stainless steel screen.

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