CN216447485U

CN216447485U - Vacuum gulp valve for water pipeline

Info

Publication number: CN216447485U
Application number: CN202123310541.9U
Authority: CN
Inventors: 章莹; 蒲昌烈
Original assignee: Kc Val Shanghai Co ltd
Current assignee: Kc Val Shanghai Co ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-05-06
Anticipated expiration: 2031-12-27

Abstract

The application discloses a water pipeline vacuum air supplement valve which comprises a valve body, a valve cover and an air supplement assembly; the valve body is provided with a valve cavity and a first air inlet and a second air inlet which are respectively communicated with the outside and the water conveying pipeline, and a valve seat is arranged in the valve cavity and close to the first air inlet; the valve cover is arranged on the valve body in an openable and closable manner and seals the valve cavity; the air supplementing component comprises a valve clack, a rotary connecting piece and a counterweight; the valve clack is connected with the counterweight through the rotary connecting piece; the valve clack is positioned in the valve cavity and is matched with the valve seat in a mode of sealing the first air inlet, the weight part is positioned outside the valve body, and the rotating connecting piece is rotatably arranged on the valve body; the vacuum gulp valve can be suitable for various long-distance and complex working condition environments, and has a wide application range.

Description

Vacuum gulp valve for water pipeline

Technical Field

The utility model relates to the technical field of valve equipment, in particular to a water pipeline vacuum gulp valve which is used for protecting a water pipeline.

Background

An air valve is a special valve used to prevent decompression during transients, forcing negative pressure inside the pipe, which is usually installed on the pipe. When the pipeline is flushed with water, the air valve is opened, and air in the pipeline is discharged out of the pipeline by water flow, so that the amount of air in the pipeline is reduced; when a negative water hammer occurs, the air valve is quickly opened to replenish air into the pipe to prevent the pipe from being crushed by the negative pressure. Therefore, the conventional air valve has the functions of air exhaust through an empty pipe and negative pressure air supplement, and is particularly suitable for short-distance and straight pipeline waterway delivery.

However, in a long-distance environment with complex working conditions, a vacuum gulp valve in the true sense is rarely available. The actual pipeline is generally replaced by an exhaust valve. However, the primary function of the vent valve is to vent gas build up in the drain pipe. When a vacuum environment appears in the pipeline, the air suction effect of the exhaust valve is not ideal; in addition, the water pressure in the water pipe and the air pressure of the outside air may be different in different application environments. Therefore, a long-distance water pipeline vacuum gulp valve which can adapt to various complex working conditions is urgently needed at present.

SUMMERY OF THE UTILITY MODEL

One advantage of the present invention is to provide a water pipeline vacuum gulp valve, wherein the valve flap can be driven to seal the vacuum gulp valve based on the self-weight of the counterweight and the water pressure in the pipeline, and the vacuum gulp valve can be automatically opened when the pressure in the pipeline is reduced to make the external air pressure greater, so as to timely supplement air in the pipeline, so that the vacuum gulp valve can be adapted to various long-distance and complex working conditions, and has a wide application range.

One advantage of the present invention is to provide a water pipeline vacuum gulp valve, which has a simple structure, is convenient to manufacture, is easy to maintain, and has a low cost.

One advantage of the present invention is to provide a water pipeline vacuum gulp valve, wherein a seal is formed between a valve flap and a valve seat by the cooperation of a pressing member and a sealing member, the sealing effect is good, the valve flap structure is reliable, a fatigue switch can be satisfied, the sealing member can be conveniently replaced after a long time use, and the maintenance cost is further reduced.

One advantage of the present invention is to provide a water pipeline vacuum gulp valve, wherein the counterweight is replaceable, and the weight of the counterweight is adjustable, so that the vacuum gulp valve is suitable for various long-distance and complex working conditions, and the application range of the vacuum gulp valve is effectively expanded.

To achieve at least one of the above advantages, the present invention provides a water pipeline vacuum gulp valve for protecting a water pipeline, wherein the vacuum gulp valve comprises:

the valve body is provided with a valve cavity, a first air inlet and a second air inlet which are respectively communicated with the outside and the water conveying pipeline, and a valve seat is arranged in the valve cavity and close to the first air inlet;

the valve cover is arranged on the valve body in an openable and closable way and seals the valve cavity; and

an air supplement unit, wherein the air supplement unit includes a valve clack, a swivel joint spare and a counterweight, wherein the valve clack passes through the swivel joint spare with the counterweight is connected, wherein the valve clack is located in the valve chamber to cooperate with the mode that can seal first air inlet with the valve seat, wherein the counterweight is located outside the valve body, just the swivel joint spare is set up rotatably in the valve body, with under the combined action of the dead weight of counterweight and water pressure, can order to the valve clack seals first air inlet, and when outside atmospheric pressure overcomes the combined action's power, can order to the valve clack is kept away from the valve seat and is opened first air inlet.

According to an embodiment of the utility model, the valve flap comprises a valve flap body, a pressing piece and a sealing piece, wherein the sealing piece is arranged on one side of the valve flap body close to the valve seat and corresponds to the valve seat, and the pressing piece is arranged on one side of the sealing piece far away from the valve flap body and is respectively connected with the sealing piece and the valve flap body so as to detachably fix the sealing piece on the valve flap body.

According to an embodiment of the utility model, the sealing element is implemented as a sealing ring and the flap body is formed with a limiting groove adapted to receive the sealing element, the compression element being implemented as a compression ring.

According to an embodiment of the present invention, the rotating link includes a rotating shaft, a first link, and a second link, wherein the rotating shaft is rotatably provided to the valve body and connects the valve flap and the weight member through the first link and the second link, respectively.

According to an embodiment of the present invention, the first connecting member is implemented as a crank arm, and one end of the first connecting member close to the valve flap is fixedly connected to the valve flap body through a first connecting shaft.

According to an embodiment of the present invention, a sealing gasket and a check gasket are further sleeved on the first connecting shaft, wherein the sealing gasket is attached to an outer side of the first connecting member away from the valve flap, the check gasket is located on an outer side of the sealing gasket, and the sealing gasket and the check gasket are detachably fixed to the first connecting shaft respectively.

According to an embodiment of the present invention, the second connecting member includes a balance weight detachably connected to the rotating shaft and a connecting rod connected between the balance weight and the balance weight.

According to an embodiment of the utility model, the weight is implemented as a counterweight and is composed of a plurality of removable sub-weights of the same or different weights.

These and other objects, features and advantages of the present invention will become more fully apparent from the following detailed description.

Drawings

Fig. 1 shows a schematic structural diagram of the water pipeline vacuum gulp valve of the present application.

Fig. 2 shows a partial structure schematic diagram of the water pipeline vacuum gulp valve of the present application.

Fig. 3 shows an enlarged schematic structure of a portion a in fig. 2 of the present application.

Fig. 4 shows a schematic cross-sectional view of the water pipeline vacuum gulp valve of the present application.

Detailed Description

The following description is presented to disclose the utility model so as to enable any person skilled in the art to practice the utility model. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the utility model, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the utility model.

It will be understood by those skilled in the art that in the disclosure of the specification, the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those illustrated in the drawings, which are merely for convenience in describing the utility model and to simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and, therefore, the terms should not be construed as limiting the utility model.

It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.

Referring to fig. 1 to 4, a water pipeline vacuum gulp valve according to a preferred embodiment of the present invention will be described in detail below, wherein the water pipeline vacuum gulp valve is used for protecting a water pipeline, especially a long-distance water pipeline with various complicated working conditions, wherein the vacuum gulp valve comprises a valve body 10, a valve cover 20 and an air supplement component 30, wherein the valve body 10 has a valve cavity 101 and has a first air inlet 102 and a second air inlet 103 respectively communicating with the outside and the water pipeline 90, meanwhile, the valve body 10 is provided with a valve seat 11 in the valve cavity 101 near the first air inlet 102, so that the outside air can enter the water pipeline 90 through the first air inlet 102, the valve seat 11 and the second air inlet 103 in sequence, and the air supplement component 30 seals the first air inlet 102 at the valve seat 11, thus forming a seal against the vacuum air compensation valve, and conversely, the air compensation module 30 can open the vacuum air compensation valve by opening the first air inlet 102 at the valve seat 11, so as to compensate air for the water pipeline 90, so as to prevent the water pipeline 90 from being damaged by collapse, deformation and the like in a negative pressure environment.

Further, the valve cover 20 is provided to the valve body 10 to be openable and closable, and seals the valve chamber 101.

In addition, the gas supply assembly 30 comprises a valve flap 31, a rotating connector 32 and a weight member 33, wherein the valve flap 31 is connected to the weight member 33 through the rotating connector 32, the valve flap 31 is located in the valve chamber 101 and is engaged with the valve seat 11 in a manner capable of sealing the first gas inlet 102, the weight member 33 is located outside the valve body 10, and the rotating connector 32 is rotatably disposed on the valve body 10. Through the cooperation of the valve flap 31, the rotating connector 32 and the counterweight 33, under the action of the self weight of the counterweight 33 or in cooperation with the water pressure, the valve flap 31 can be driven to seal the first air inlet 102, and thus the vacuum gulp valve, wherein as the water pressure in the water pipeline 90 increases, the sealing performance of the valve flap 31 on the first air inlet 102 is stronger; when the water pipe 90 has a negative pressure condition, the external air pressure overcomes the gravity of the weight 33, and can drive the valve flap 31 away from the valve seat 11 to open the first air inlet 102, so as to force the external air to rapidly enter the water pipe 90 through the first air inlet 102 and the second air inlet 103, thereby preventing the water pipe 90 from being damaged by collapse or deformation due to the negative pressure.

It should be noted that, in general, even if the water pipe 90 is not filled with water, the valve flap 31 may still seal on the valve seat 11 by virtue of the self weight of the counterweight 33 and the lever action of the rotary connector 32 and the valve flap 31, so as to seal the first air inlet 102, and as the water flow increases, the sealing performance of the valve flap 31 on the valve seat 11 increases. Obviously, when a negative pressure environment is formed in the water pipe 90, the negative pressure environment inside the water pipe 90 forms a certain suction force on the valve flap 31, and at this time, the external air more easily drives the valve flap 31 away from the valve seat 11, thereby opening the first air inlet 102.

Specifically, under the normal working condition, based on the combined action of the self weight of the weight member 33 and the pressure of the water in the water pipe 90, the valve flap 31 is tightly attached to the valve seat 11, so that the vacuum gulp valve is in a closed state, during which, the higher the water pressure is, the tighter the valve is closed, when negative pressure problem occurs in the water pipe 90 due to various factors, the air pressure of the outside air exceeds the pressing force of the weight 33 extending to the valve flap 31 due to leverage, the outside air pushes the valve flap 31 downward away from the valve seat 11, and then the first air inlet 102 is opened, the vacuum gulp valve is opened, so that the external air can rapidly enter the water pipeline 90, so as to quickly compensate the negative pressure influence of the water pipeline 90 and avoid the damage of the water pipeline 90 such as the collapse or the deformation. In addition, the weight of the weight member 33 may be appropriately adjusted for different application environments, so as to change the magnitude of the force acting together with the self weight of the weight member 33 and the water pressure in the water pipe 90. Therefore, the water pipeline vacuum gulp valve that this application provided has more extensive application scope than conventional technique, especially shows its advantage under long distance, complicated operating mode environment more, simple structure simultaneously, control is convenient, easy to maintain, with low costs.

As a preferred embodiment, the valve flap 31 includes a valve flap body 311, a pressing member 312 and a sealing member 313, wherein the sealing member 313 is disposed on a side of the valve flap body 311 close to the valve seat 11 and corresponds to the valve seat 11, so that a flat soft sealing structure is formed between the valve flap body 311 and the valve seat 11 by the sealing member 313, thereby ensuring the reliability of the sealing. The pressing member 312 is located on a side of the sealing member 313 away from the valve flap body 311, and is connected to the sealing member 313 and the valve flap body 311, respectively, so as to detachably fix the sealing member 313 to the valve flap body 311. Typically, the compression member 312 secures the seal 313 to the valve flap body 311 by fasteners, such as bolts or the like. The sealing element 313 can be replaced conveniently in the long-term use process, the maintenance of the vacuum gulp valve is convenient, and the maintenance cost is low.

Further preferably, the sealing member 313 is implemented as a sealing ring, and the valve flap body 311 is formed with a limiting groove 301 adapted to receive the sealing member 311. Through setting up spacing groove 301 can form location and limiting displacement, and is not only convenient the installation of sealing member 313 still makes the installation of sealing member 313 is more firm, is difficult for producing relative displacement. Accordingly, to save raw material, the compression member 312 is implemented as a compression ring.

Preferably, the rotating link 32 includes a rotating shaft 321, a first link 322 and a second link 323, wherein the rotating shaft 321 is rotatably disposed at the valve body 10 and connects the valve flap 31 and the weight member 33 through the first link 322 and the second link 323, respectively. Through with swivel connected coupler 32 sets up to split type structure, not only makes things convenient for the dismouting of this vacuum gulp valve, in addition, still is convenient for the adjustment of the counter weight size on this vacuum gulp valve in the later stage.

It should be noted that, in order to facilitate the rotation of the rotary connecting member 32, a bearing for rotating the rotary shaft 321 is further provided in the valve body 10. The bearing is fitted over the rotating shaft 321. In this way, the frictional force between the rotary shaft 321 and the valve body 10 can be effectively reduced, and the weight effect of the weight 33 can be improved.

Further preferably, the first connecting member 322 is implemented as a crank arm to enhance the effect of the force exerted by the weight 33 on the valve flap 31 by a bent structure, and one end of the first connecting member 322 near the valve flap 31 is fixedly connected to the valve flap body 311 by a first connecting shaft 324.

Further preferably, a sealing gasket 325 and a check gasket 326 are further sleeved on the first connecting shaft 324, wherein the sealing gasket 325 is attached to the outer side of the first connecting member 322 away from the valve flap 31, so as to improve the sealing effect of the valve flap 31 on the valve seat 11 and prevent air leakage at the connection between the valve flap 31 and the first connecting member 322 at the first connecting shaft 324. The anti-loose gasket 326 is located outside the sealing gasket 325 to prevent the sealing gasket 325 from loosening in a long-time use process, so that the sealing performance of the vacuum gulp valve is effectively ensured. In addition, the sealing washer 325 and the anti-loosening washer 326 are detachably fixed to the first connecting shaft 324, respectively, so as to facilitate replacement of the sealing washer 325 and the anti-loosening washer 326. Typically, the sealing washer 325 and the anti-loosening washer 326 are fastened by nuts. Specifically, the sealing gasket 325 is first fastened to the surface of the first connecting member 322 by a nut, and then the anti-loose gasket 326 is fastened to the surface of the previous nut by another nut.

As a preferred embodiment, the second connecting member 323 includes a counterweight 3231 and a connecting rod 3232, wherein the counterweight 3231 is detachably connected to the rotating shaft 321, and the connecting rod 3232 is connected between the counterweight 3231 and the counterweight 33, so that the counterweight 33 having different weight specifications can be replaced by detaching the counterweight 3231.

Further preferably, the weight 33 is implemented as a weight block, such as a square block, a cylindrical block or a prismatic block, and the weight 33 is composed of a plurality of detachable sub-weights 331 of the same or different weights. When needing to change different weight specifications during the counterweight 33, can be through dismantling one or more sub-counterweight 331, perhaps add one or more sub-counterweight 331 reaches the purpose that provides different counter weights, and it is more convenient to operate, can also effectively reduce intensity of labour, and the flexibility is high, can also effectively reduce the stock of different specification counterweight simultaneously, reduces the cost of enterprises.

It should be noted that the terms "first and second" in the present invention are used for descriptive purposes only, do not denote any order, are not to be construed as indicating or implying any relative importance, and are to be interpreted as names.

It will be appreciated by persons skilled in the art that the embodiments of the utility model described above and shown in the drawings are given by way of example only and are not limiting of the utility model. The advantages of the present invention have been fully and effectively realized. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.

Claims

1. A water pipeline vacuum gulp valve for protecting water pipeline, wherein the vacuum gulp valve includes:

2. The water pipeline vacuum gulp valve of claim 1 wherein, the valve flap comprises a valve flap body, a pressing piece and a sealing piece, wherein the sealing piece is arranged on one side of the valve flap body close to the valve seat and corresponds to the valve seat, and the pressing piece is arranged on one side of the sealing piece far away from the valve flap body and is respectively connected with the sealing piece and the valve flap body so as to detachably fix the sealing piece on the valve flap body.

3. The water pipeline vacuum gulp valve as claimed in claim 2, wherein the sealing member is implemented as a sealing ring, and the valve flap body is formed with a limit groove adapted to receive the sealing member, and the pressing member is implemented as a pressing ring.

4. The water pipeline vacuum gulp valve as claimed in claim 2, wherein the rotation connector comprises a rotation shaft, a first connector and a second connector, wherein the rotation shaft is rotatably disposed on the valve body and connects the valve flap and the weight member through the first connector and the second connector, respectively.

5. The water pipeline vacuum gulp valve as claimed in claim 4, wherein the first connecting piece is implemented as a crank arm, and one end of the first connecting piece near the valve flap is fixedly connected with the valve flap body through a first connecting shaft.

6. The water pipeline vacuum gulp valve as claimed in claim 5, wherein the first connecting shaft is further sleeved with a sealing gasket and a locking gasket, wherein the sealing gasket is attached to the outer side of the first connecting piece away from the valve flap, the locking gasket is located on the outer side of the sealing gasket, and the sealing gasket and the locking gasket are respectively detachably fixed to the first connecting shaft.

7. The water pipeline vacuum gulp valve as claimed in any one of claims 4 to 6, wherein the second connecting member comprises a balance weight and a connecting rod, wherein the balance weight is detachably connected with the rotating shaft, and the connecting rod is connected between the balance weight and the balance weight.

8. The water pipeline vacuum gulp valve as claimed in claim 7, wherein the weight is implemented as a weight and is composed of a plurality of detachable sub-weights with the same or different weights.