CN217030034U

CN217030034U - Diaphragm valve

Info

Publication number: CN217030034U
Application number: CN202220086038.5U
Authority: CN
Inventors: 黄志勇
Original assignee: Juchuang Shanghai Fluid Technology Co ltd
Current assignee: Juchuang Shanghai Fluid Technology Co ltd
Priority date: 2022-01-13
Filing date: 2022-01-13
Publication date: 2022-07-22
Anticipated expiration: 2032-01-13

Abstract

The utility model relates to a diaphragm valve which comprises a shell, a valve opening assembly, a filter plate and a self-cleaning assembly. The shell is provided with a water flow channel. The water flow channel is internally provided with a mutually matched stop block and a diaphragm. The diaphragm is deformed under stress and blocks the water flow channel when being attached to the blocking block. The valve opening assembly is used for adjusting the deformation amount of the diaphragm. The filter is located the rivers passageway, and filter lateral wall and rivers passageway inner wall sliding connection. A reset piece used for enabling the filter plate to move horizontally and reset is arranged between the filter plate and the water flow channel. The self-cleaning assembly includes a threaded sleeve, a rotating rod, and a cleaning brush. Through setting up self-cleaning assembly, when rivers get into the rivers passageway of casing, the dwang is constantly deepened and is taken place the rotation in the threaded sleeve, drives cleaning brush and clears up the surperficial of filter, prevents that the filtration pore of crossing of filter from blockking up, has realized the function of automatically cleaning, preventing blockking up.

Description

Diaphragm valve

Technical Field

The utility model relates to the technical field of diaphragm valves, in particular to a diaphragm valve.

Background

The diaphragm valve is a stop valve which uses a diaphragm as an opening and closing piece to seal a flow passage, cut off fluid and separate an inner cavity of a valve body from an inner cavity of a valve cover, the diaphragm is made of elastic, corrosion-resistant and non-permeable materials such as rubber, plastics and the like, the valve body is made of multi-purpose plastics, glass fiber reinforced plastics, ceramics or metal lining rubber materials, and the diaphragm valve has a simple structure and good sealing and corrosion-resistant properties

The existing diaphragm valve is lack of a filter component for fluid in the using process, and the diaphragm valve is easy to accumulate and cause blockage after being used for a long time, so that the using effect is influenced.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a diaphragm valve in order to solve the problem that the existing diaphragm valve lacks a filter assembly for fluid.

A diaphragm valve comprises a shell, a valve opening assembly, a filter plate and a self-cleaning assembly. The shell is provided with a water flow channel. The water flow channel is internally provided with a mutually matched stop block and a diaphragm. And the diaphragm is deformed under stress and blocks the water flow channel when being attached to the blocking block. The valve opening assembly is used for adjusting the deformation amount of the diaphragm. The filter is located the rivers passageway, and filter lateral wall and rivers passageway inner wall sliding connection. A reset piece for enabling the filter plate to be horizontally moved and reset is arranged between the filter plate and the water flow channel. The self-cleaning assembly includes a threaded sleeve, a rotating rod, and a cleaning brush. The dwang passes through the bearing rotary type to be installed at the filter middle part, and the dwang is provided with the external screw thread that cooperatees with threaded sleeve near the one end that blocks the piece. The threaded sleeve is fixedly arranged in the water flow channel. The cleaning brush is fixedly arranged at one end of the rotating rod far away from the stop block, and the cleaning side of the cleaning brush is attached to the filter plate.

Above-mentioned diaphragm valve, through setting up self-cleaning assembly, during rivers get into the rivers passageway of casing when, rivers impact the filter, and drive the filter and remove to blockking piece one side, remove the in-process, the dwang constantly deepens into in the threaded bush and takes place the rotation, drive cleaning brush and clear up the surperficial of filter, prevent that the filtration pore of filter from blockking up, after rivers stop, under the effect of piece that resets, cleaning brush is again along former activity orbit clean once more, the self-cleaning has been realized, prevent the function of jam.

In one embodiment, a translation rail is arranged between the filter plate and the water flow channel. The translation track includes regulating block and guide bar. The guide rod is fixedly arranged in the water flow channel. The adjusting block is sleeved outside the guide rod in a sliding manner. The filter lateral wall and regulating block fixed connection.

In one embodiment, the side wall of the water flow channel is provided with an adjusting groove. The extending direction of the adjusting groove is parallel to the extending direction of the water flow channel. The guide rod is fixedly arranged in the adjusting groove.

In one embodiment, the reset piece is a buffer spring which is positioned in the adjusting groove, and two ends of the buffer spring are respectively connected with the end walls of the filter plate and the adjusting groove.

In one embodiment, a baffle is fixedly mounted in the water flow channel. The baffle is located between the stopper and the filter plate. The threaded sleeve is fixedly arranged on the baffle.

In one embodiment, a drain outlet is provided between the barrier and the filter plate. An adjusting valve is arranged in the sewage draining outlet.

In one embodiment, the valve opening assembly comprises a mounting seat, a threaded rod and an abutting rod. The mounting seat is fixedly arranged outside the shell, and a cavity is formed inside the mounting seat. The threaded rod is in threaded connection with one side, far away from the shell, of the mounting seat. The supporting rod penetrates through the mounting seat and the shell, one end of the supporting rod is in contact with the diaphragm, and the other end of the supporting rod is in contact with one end of the threaded rod, which is located in the cavity.

In one embodiment, a lifting plate is arranged between the threaded rod abutting rods. The threaded rod is rotationally connected with one side of the lifting plate. The supporting rod is fixedly connected with the other side of the lifting plate. A return spring is arranged between the lifting plate and one side of the cavity close to the shell.

In one embodiment, a turntable is mounted at one end of the threaded rod outside the mounting seat.

In one embodiment, the two ends of the shell are provided with mounting discs for connecting external water pipes. The mounting disc is annular, and has seted up a plurality of mounting holes on the circumferencial direction.

Compared with the prior art, the utility model has the following beneficial effects:

according to the diaphragm valve, due to the self-cleaning assembly, when water flow enters the water flow channel of the shell, the water flow impacts the filter plate and drives the filter plate to move towards one side of the stop block, the rotating rod continuously penetrates into the threaded sleeve and automatically rotates in the moving process, the cleaning brush is driven to clean the surface of the filter plate, the filter holes of the filter plate are prevented from being blocked, after the water flow stops, the cleaning brush is cleaned once again along the original moving track under the action of the reset piece, the functions of self cleaning and blockage prevention are achieved, the operation is convenient, the filtering effect is good, the filtering effect of the diaphragm valve cannot be influenced after long-time use, the diaphragm can be effectively protected, and the practicability is high.

Drawings

Fig. 1 is a structural diagram of a diaphragm valve.

Fig. 2 is a block diagram of a transfer rod and threaded sleeve in a diaphragm valve.

FIG. 3 is a structural layout diagram of a filter plate and a regulating block in a diaphragm valve.

In the figure: 1-shell, 2-mounting seat, 3-diaphragm, 4-blocking block, 5-threaded rod, 6-rotary disk, 7-lifting plate, 8-resisting rod, 9-reset spring, 10-mounting plate, 11-baffle, 12-dirt guide block, 13-dirt discharge outlet, 14-regulating groove, 15-regulating block, 16-guide rod, 17-buffer spring, 18-filtering plate, 19-threaded sleeve, 20-rotating rod and 21-cleaning brush.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

Example 1

Referring to fig. 1, the present embodiment discloses a diaphragm valve, which includes a housing 1, a valve opening assembly, a filter plate 18, a self-cleaning assembly, and the like. And mounting discs 10 for connecting external water pipes are further installed at both ends of the housing 1. The mounting disc 10 is annular, and has seted up a plurality of mounting holes in the circumferencial direction, can connect outside water pipe through the mounting hole, and the mounting disc 10 also can replace flange dish etc.. Wherein, the shell 1 is provided with a water flow channel. A mutually matched stop block 4 and a diaphragm 3 are arranged in the water flow channel. The diaphragm 3 is stressed to deform and blocks the water flow channel when being attached to the blocking block 4. The valve-opening assembly is used to adjust the amount of deformation of the diaphragm 3. The translation track sets up in rivers passageway, and translation track's extending direction is parallel with rivers passageway's extending direction. And the filter plate 18 is positioned in the water flow channel, and the side wall of the filter plate 18 is in sliding connection with the inner wall of the water flow channel. A reset piece for enabling the filter plate 18 to be horizontally reset is arranged between the filter plate 18 and the water flow channel.

The self-cleaning assembly comprises a threaded sleeve 19, a turning rod 20 and a cleaning brush 21. The rotating rod 20 is rotatably mounted in the middle of the filter plate 18 through a bearing, and one end of the rotating rod 20 close to the stop block 4 is provided with an external thread matched with the threaded sleeve 19. A threaded sleeve 19 is fixedly disposed within the water flow passage. The cleaning brush 21 is fixedly arranged at one end of the rotating rod 20 far away from the blocking block 4, and the cleaning side of the cleaning brush 21 is attached to the filter plate 18.

When the diaphragm valve of this embodiment is used, the regulation to rivers is realized through the connection state of diaphragm 3 and barrier 4, and when diaphragm 3 and barrier 4 laminating, can cut off rivers, when diaphragm 3 and barrier 4 do not laminate, rivers can normally pass through. Through setting up self-cleaning assembly, during rivers entering casing 1's rivers passageway, rivers impact filter 18, and drive filter 18 and remove to 4 one sides of stopper piece, remove the in-process, dwang 20 is constantly deepened and is taken place the rotation in the threaded sleeve 19, drive cleaning brush 21 and clear up the surperficial of filter 18, prevent that the filtration pore of crossing of filter 18 from blockking up, after rivers stop, under the effect that resets, cleaning brush 21 is again along former activity orbit once more clean, realized the automatically cleaning, prevent the function of jam. Meanwhile, after a long time, the effect that water flows through the filter plate 18 is reduced due to water scale or other impurities, and the filter plate 18 can be driven to move when the water flows through the filter plate 18 under the condition, so that self-cleaning is achieved.

It should be noted that, in this embodiment, by reasonably setting the thread relationship between the rotating rod 20 and the threaded sleeve 19, it can be realized that the rotating rod 20 penetrates into the threaded sleeve 19 for a certain distance, that is, the rotating rod 20 rotates once. In order to reduce the resistance of the rotating rod 20 to self-cleaning, the weight of the filter plate 18 and the rotating rod 20 can be reduced, and light materials such as plastic parts are used.

This embodiment is further provided with a translation rail between the filter plate and the water flow channel, the translation rail comprising an adjusting block 15 and a guide bar 16. The guide bar 16 is fixedly mounted in the water flow passage. The adjusting block 15 is sleeved outside the guide rod 16 in a sliding mode. The side wall of the filter plate 18 is fixedly connected with the adjusting block 15. Specifically, the side wall of the water flow channel can be provided with an adjusting groove 14. It is ensured that the extension direction of the regulating groove 14 is parallel to the extension direction of the water flow passage. The guide bar 16 is fixedly mounted in the adjustment groove 14. In this way, the filter plate 18 can be translated by sliding the adjusting block 15 along the guide bar 16. Of course, the outer wall of the adjusting block 15 and the inner wall of the adjusting groove 14 may or may not be in contact, and if in contact, it is ensured that the friction force cannot be too large.

In this embodiment, the reset member is a buffer spring 17, the buffer spring 17 is located in the adjusting groove 14, and two ends of the buffer spring are respectively connected to the end walls of the filter plate 18 and the adjusting groove 14.

In order that the reduced water flow directly hits the membrane 3, in this embodiment a baffle 11 is mounted in the water flow channel. The baffle 11 is located between the stop 4 and the filter plate 18. The threaded sleeve 19 is fixedly mounted on the baffle 11. Considering that the garbage and impurities in the water passage may be accumulated for a long time, the present embodiment is provided with the drain outlet 13 between the blocking piece 4 and the filtering plate 18. An adjusting valve is arranged in the sewage draining outlet 13. The valve can be opened for cleaning regularly. In order to facilitate sewage discharge, a sewage guide block 12 can be arranged on one side of the blocking block 4 close to the sewage discharge outlet 13.

The embodiment also describes a specific structure of the valve opening assembly, wherein the valve opening assembly comprises a mounting seat 2, a threaded rod 5 and a butting rod 8. The mounting seat 2 is fixedly mounted outside the shell 1, and a cavity is formed inside the mounting seat 2. The threaded rod 5 is in threaded connection with one side, far away from the shell 1, of the mounting seat 2. The supporting rod 8 penetrates through the mounting seat 2 and the shell 1, one end of the supporting rod 8 is in contact with the diaphragm 3, and the other end of the supporting rod is in contact with one end, located in the cavity, of the threaded rod 5. The amount of deformation of the membrane 3 can be varied by turning the threaded rod 5. Further, in order to improve stability, in the present embodiment, a lifting plate 7 is further provided between the threaded rod 5 and the rod 8. The threaded rod 5 is rotatably connected with one side of the lifting plate 7. The abutting rod 8 is fixedly connected with the other side of the lifting plate 7. A return spring 9 is arranged between the lifting plate 7 and one side of the cavity close to the shell 1. For the convenience of operation, a rotary disc 6 is also arranged at one end of the threaded rod 5 outside the mounting seat 2.

The diaphragm valve of this embodiment, the operation is convenient, and the filter effect is good, and long-time the use can not influence the filter effect of diaphragm valve, also can effectively protect diaphragm 3, and the practicality is high.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the application of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A diaphragm valve, comprising:

a shell (1) which is provided with a water flow channel; a blocking block (4) and a diaphragm (3) which are mutually matched are arranged in the water flow channel; the diaphragm (3) blocks the water flow channel when being deformed by stress and attached to the blocking block (4); and

a valve opening assembly for adjusting the amount of deformation of the diaphragm (3);

characterized in that the diaphragm valve further comprises:

the filter plate (18) is positioned in the water flow channel, and the side wall of the filter plate (18) is in sliding connection with the inner wall of the water flow channel; a reset piece for horizontally resetting the filter plate (18) is arranged between the filter plate (18) and the water flow channel; and

a self-cleaning assembly comprising a threaded sleeve (19), a rotatable rod (20) and a cleaning brush (21); the rotating rod (20) is rotatably arranged in the middle of the filter plate (18) through a bearing, and external threads matched with the threaded sleeve (19) are arranged at one end, close to the stop block (4), of the rotating rod (20); the threaded sleeve (19) is fixedly arranged in the water flow channel; the cleaning brush (21) is fixedly arranged at one end, far away from the stop block (4), of the rotating rod (20), and the cleaning side of the cleaning brush (21) is attached to the filter plate (18).

2. The diaphragm valve of claim 1, wherein a translation track is provided between the filter plate (18) and the water flow channel; the translation track comprises an adjusting block (15) and a guide rod (16); the guide rod (16) is fixedly arranged in the water flow channel; the adjusting block (15) is sleeved outside the guide rod (16) in a sliding manner; the side wall of the filter plate (18) is fixedly connected with the adjusting block (15).

3. The diaphragm valve of claim 2, wherein the side wall of the water flow channel is provided with an adjusting groove (14); the extending direction of the adjusting groove (14) is parallel to the extending direction of the water flow channel; the guide rod (16) is fixedly arranged in the adjusting groove (14).

4. A diaphragm valve according to claim 3, wherein the reset means is a buffer spring (17), said buffer spring (17) being located within the adjustment tank (14) and having two ends connected to the filter plate (18) and the end wall of the adjustment tank (14), respectively.

5. The diaphragm valve of claim 1 where a flapper (11) is fixedly mounted within the water flow channel; the baffle (11) is positioned between the barrier block (4) and the filter plate (18); the threaded sleeve (19) is fixedly arranged on the baffle plate (11).

6. A diaphragm valve according to claim 5, wherein a drain outlet (13) is provided between the barrier block (4) and the filter plate (18); and an adjusting valve is arranged in the sewage draining outlet (13).

7. The diaphragm valve of claim 1 where the valve opening assembly comprises a mount (2), a threaded rod (5) and a stem (8); the mounting seat (2) is fixedly mounted outside the shell (1), and a cavity is formed in the mounting seat (2); the threaded rod (5) is in threaded connection with one side, far away from the shell (1), of the mounting seat (2); the supporting rod (8) penetrates through the mounting seat (2) and the shell (1), one end of the supporting rod (8) is in contact with the diaphragm (3), and the other end of the supporting rod is in contact with one end, located in the cavity, of the threaded rod (5).

8. A diaphragm valve according to claim 7, wherein a lifting plate (7) is provided between the threaded rod (5) and the stem (8); the threaded rod (5) is rotatably connected with one side of the lifting plate (7); the supporting rod (8) is fixedly connected with the other side of the lifting plate (7); and a return spring (9) is arranged between the lifting plate (7) and one side of the cavity close to the shell (1).

9. A diaphragm valve according to claim 7, wherein the end of the threaded rod (5) outside the mounting (2) is fitted with a dial (6).

10. A diaphragm valve according to any of claims 1 to 9, wherein both ends of the housing (1) are fitted with mounting discs (10) for connection to external water pipes; the mounting disc (10) is annular, and a plurality of mounting holes are formed in the circumferential direction.