CN210106717U

CN210106717U - Irrigation valve

Info

Publication number: CN210106717U
Application number: CN201920599934.XU
Authority: CN
Inventors: 陈燕群; 张平
Original assignee: NINGBO JIAYIN ELECTRO MECHANICAL TECHNOLOGY Co Ltd
Current assignee: NINGBO JIAYIN ELECTRO MECHANICAL TECHNOLOGY Co Ltd
Priority date: 2019-04-28
Filing date: 2019-04-28
Publication date: 2020-02-21
Anticipated expiration: 2029-04-28

Abstract

The utility model discloses an irrigation valve, including the valve body, locate the valve gap on the valve body to and iron core subassembly; the valve body has an inlet, a main valve port and an outlet; the valve body is provided with a first connecting channel at the position of the inlet and a second connecting channel at the position of the outlet, wherein the valve cover is provided with a flow passage, and the first connecting channel and the second connecting channel can be communicated through the flow passage; the valve body is provided with a diaphragm assembly at the position of the main valve port and used for selectively plugging the main valve port; the iron core assembly is arranged on the valve cover and used for controlling the on-off of a flow passage on the valve cover; the valve body is provided with a filtering piece at the position of the inlet, and the filtering part of the filtering piece wraps the first connecting channel and is connected with the inlet. The utility model discloses can filter and carry out impurity filtration to this irrigation valve leading-in medium, in this while, leading-in medium can erode the impurity that filters out on filtering simultaneously to this plays the effect of preventing blockking up.

Description

Irrigation valve

Technical Field

The utility model belongs to the technical field of flow control is relevant, especially, relate to an irrigation valve.

Background

At present, current irrigation valve is provided with filter screen structure usually for irrigation valve during operation can carry out impurity to the leading-in medium by this irrigation valve and filter, and wherein the medium is mostly water, also can be other liquid. However, current irrigation valve uses a period of back, carries out impurity filtering because of the filter screen constantly for impurity can be piled up on the filter screen, thereby causes the flow that irrigation valve during operation corresponds to reduce, and reduces irrigation valve's working property, piles up impurity on the filter screen when serious and can block up the filter screen, makes irrigation valve can not carry out normal work.

Therefore, there is a need to design an irrigation valve to solve the above-mentioned problem of blockage caused by impurities in the irrigation valve.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need to provide an irrigation valve that addresses the problems in the prior art.

The irrigation valve comprises a valve body, a valve cover arranged on the valve body and an iron core assembly; the valve body has an inlet, a main valve port and an outlet; the valve body is provided with a first connecting channel at the position of the inlet, and a second connecting channel at the position of the outlet, wherein the valve cover is provided with a flow passage, and the first connecting channel is communicated with the second connecting channel through the flow passage; the valve body is provided with a diaphragm assembly at the position of the main valve port and used for selectively plugging the main valve port; the iron core assembly is arranged on the valve cover and used for controlling the on-off of the flow channel; the valve body is in the position of import is equipped with filters, filter pack's filter portion parcel first connecting channel with the interface that the import is connected.

As the utility model discloses an optimal scheme, filter and set up to the filter screen, filter screen net surfing hole the central axis with the leading-in medium flow direction of valve body import is perpendicular.

As the preferred scheme of the utility model, the valve body is in the position of import is equipped with the loose joint for connect external pipeline.

As the utility model discloses a preferred scheme, the filter screen sets up to the I shape structure, the filter screen passes through the loose joint is spacing to lean on in the valve body.

As the preferred scheme of the utility model, the import position of valve body is equipped with the coarse strainer, wherein the mesh aperture of coarse strainer is greater than the mesh aperture of filter screen.

As the preferred scheme of the utility model, the central axis of mesh on the coarse strainer with the leading-in medium flow direction of valve body import is parallel.

As the utility model discloses an optimal scheme, the valve body is in first connecting channel with the interface position that the runner is connected is equipped with the water conservancy diversion piece, the aperture of orifice is less than on the water conservancy diversion piece the bore of runner.

As the utility model discloses a preferred scheme, the rigid coupling has the magnetic conductive plate on the valve gap, iron core subassembly passes through the magnetic conductive plate is spacing to be fixed on the valve gap.

As a preferred embodiment of the present invention, the iron core assembly includes a movable iron core, a fixed iron core disposed opposite to the movable iron core, a magnet disposed in the fixed iron core, a spring having two ends respectively abutting against the movable iron core and the fixed iron core, and an electromagnetic coil disposed at the periphery of the fixed iron core; and an iron core sealing element is arranged at one end of the movable iron core, which faces the valve guide port of the flow channel, and the movable iron core can drive the iron core sealing element to seal the valve guide port.

As the utility model discloses an optimal scheme, iron core subassembly still includes the magnetizer, the magnetizer sets up solenoid is kept away from the one end of magnetic conductive plate, just solenoid with the magnetic conductive plate with be equipped with O type circle between the magnetizer respectively.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:

the utility model provides an irrigation valve sets up through filtering reasonable structure for this irrigation valve during operation, available filtration piece carries out impurity filtering to the medium of being imported by the valve body, and in this time, the impurity that filters out on filtering piece can be washed away simultaneously to leading-in medium, plays the effect of preventing blockking up with this, and then ensures this irrigation valve during operation to flow control's stability.

Drawings

Fig. 1 is a cross-sectional view of an irrigation valve according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of the structure of the screen in the irrigation valve of fig. 1.

10, a valve body; 11. an inlet; 12. a main valve port; 13. an outlet; 14. a first connecting channel; 15. a second connecting channel; 16. a diaphragm assembly; 17. a flow guide block; 20. a valve cover; 21. a flow channel; 22. a magnetic conductive plate; 30. an iron core assembly; 31. a movable iron core; 32. fixing the iron core; 33. a spring; 34. an electromagnetic coil; 35. an iron core sealing member; 36. a magnetizer; 37. a magnet; 101. filtering with a screen; 102. coarse filtration; 103. loose joint; 161. a membrane; 162. pressing a plate; 163. a through hole; 171. an orifice; 201. a seal ring; 202. an O-shaped ring; 211. lead the valve port.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

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 invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1, an irrigation valve according to an embodiment of the present invention includes a valve body 10, a valve cover 20 disposed on the valve body 10, and an iron core assembly 30.

The valve body 10 has an inlet 11, a main valve port 12 and an outlet 13, wherein the valve body 10 is provided with a first connecting passage 14 at the position of the inlet 11, and is provided with a second connecting passage 15 at the position of the outlet 13, and the inlet 11 and the outlet 13 of the valve body 10 are communicated through the first connecting passage 14 and the second connecting passage 15. That is, in the irrigation valve of the present embodiment, the medium introduced from the inlet 11 of the valve body 10 can be conducted through the first connecting channel 14 and the second connecting channel 15.

In this embodiment, a flow channel 21 is disposed on the valve cover 20, and the first connecting channel 14 and the second connecting channel 15 can be conducted through the flow channel 21, wherein the iron core assembly 30 is disposed on the valve cover 20 and is used for controlling the on-off of the flow channel 21, that is, when the irrigation valve of this embodiment is in operation, the iron core assembly 30 can realize the on-off control between the inlet 11 and the outlet 13 on the valve body 10 by controlling the on-off of the flow channel 21 on the valve cover 20.

The valve body 10 is provided with a diaphragm assembly 16 at the position of the main valve port 12, and is used for selectively plugging the main valve port 12. In this embodiment, the diaphragm assembly 16 includes a diaphragm 161 disposed on the main valve port 12 of the valve body 10, and a pressing plate 162 fixedly connected to the diaphragm 161, wherein the diaphragm 161 is disposed between the valve body 10 and the valve cover 20 and is fixed to the valve body 10 and the valve cover 20 in a limited manner, and the diaphragm 161 is respectively provided with through holes 163 at positions of the first connecting channel 14 and the second connecting channel 15 of the valve body 10, so that the first connecting channel 14 and the second connecting channel 15 are respectively communicated with the flow channel 21 of the valve cover 20.

Specifically, when the pressure of the medium at the outlet 13 of the valve body 10 on the diaphragm assembly 16 is greater than the pressure of the medium in the valve cover 20 on the diaphragm assembly 16, the diaphragm assembly 16 opens the main valve port 12, so that the medium introduced from the inlet 11 of the valve body 10 into the valve cover 20 can be led out to the outlet 12 of the valve port 10 through the main valve port 12; otherwise, the diaphragm assembly 16 blocks the main valve port 12.

In the present embodiment, the valve body 10 is provided with a filter element at the position of the inlet 11, and the filter portion of the filter element wraps the interface of the first connecting channel 14 connected with the inlet 11.

Referring to fig. 2, the filter element is configured as a filter screen 101, and a central axis of a mesh hole of the filter screen 101 is perpendicular to a flow direction of a medium introduced from the inlet 11 of the valve body 10. So that the flow of the medium introduced from the inlet 11 of the valve body 10 can flush the meshes of the filter screen 101, thereby preventing the filter screen 101 from being blocked. It can be understood that the filter element is not limited to the filter screen 101, and those skilled in the art can set the filter element to be a filter structure such as nylon mesh cloth as required, and the filter portion for filtering the medium on the filter element is not limited to be parallel to the flow direction of the inlet 11 leading-in medium of the valve body 10, and those skilled in the art can set the direction of the filter portion of the filter element and the flow direction of the inlet 11 leading-in medium of the valve body 10 to be at a certain angle according to the use requirement, as long as the effect of flushing the filter portion of the filter element by the medium introduced into the inlet 11 of the valve body 10 can be satisfied.

Furthermore, the irrigation valve of the present embodiment further includes a coarse filter 102 at the inlet 11 of the valve body 10, wherein the mesh size of the coarse filter 102 is larger than the mesh size of the filter 101, so that the irrigation valve of the present embodiment has two-stage filtration, thereby ensuring that the media introduced from the inlet 11 of the valve body 10 can be adequately filtered by the impurities when the irrigation valve is in operation. And the irrigation valve of this embodiment passes through the structural setting of coarse strainer 102 for the impurity particle that filters out during the operation of filter screen 101 is little, so that the leading-in medium flow of valve body 10 import 11 is right the impurity that filter screen 101 filtered out erodes, further plays the effect of preventing blockking up.

The central axis of the mesh on the coarse filter screen 102 is parallel to the flow direction of the medium introduced from the inlet 11 of the valve body 10.

As the preferred scheme of the utility model, the valve body 10 is in the position of import 11 is equipped with loose joint 103 for be connected with external pipeline, so that when this irrigation valve used, with external pipeline between be connected.

In this embodiment, the filter screen 101 is configured as an i-shaped structure, and the filter screen 101 is limited and abutted against the valve body 10 through the loose joint 103. Thereby facilitating the assembly of the sieve 101 in said valve body 10. It can be understood that the structure of the filter screen 101 is not limited to that shown in the drawings, and those skilled in the art can set the filter screen 101 to be a mesh structure according to the use requirement, and the filter screen 101 of the mesh structure is attached to the interface where the inlet 11 of the valve body 10 is connected with the first connecting channel 14.

In this embodiment, the valve body 10 is provided with a flow guide block 17 at an interface position where the first connecting passage 14 is connected to the flow passage 21, and an aperture of the orifice 171 of the flow guide block 17 is smaller than an aperture of the flow passage 21. Therefore, when the core assembly 30 is conducted to the flow passage 21 of the valve cover 20, the upward pressure of the medium introduced into the outlet 13 of the valve body 10 through the flow passage 21 of the valve cover 20 to the diaphragm 161 is greater than the downward pressure of the medium introduced into the valve cover 20 through the orifice 171 of the flow guide block 17 to the diaphragm 161, so that the diaphragm 161 is lifted, and the corresponding main valve port 12 is opened; when the core assembly 30 cuts off the flow passage 21 of the valve cover 20, the medium introduced into the valve cover 20 through the orifice 171 of the flow guide block 17 is accumulated in the valve cover 20, so that the downward pressure of the medium in the valve cover 20 on the diaphragm 161 is increased to drive the diaphragm 161 to move downward and cut off the main valve port 12 of the valve body 10.

In this embodiment, a magnetic conductive plate 22 is fixedly connected to the valve cover 20, and the iron core assembly 30 is fixed to the valve cover 20 through the magnetic conductive plate 22 in a limiting manner, so that the iron core assembly 30 is assembled on the valve cover 20. The parts of the magnetic conductive plate 22 contacting with the valve cover 20 are respectively provided with a sealing ring 201 to assemble and seal the iron core assembly 30 and the valve cover 20.

In the present embodiment, the core assembly 30 includes a movable core 31, a fixed core 32 disposed opposite to the movable core 31, a magnet 37 disposed in the fixed core, a spring 33 having both ends abutting against the movable core 31 and the fixed core 32, respectively, and an electromagnetic coil 34 disposed on the periphery of the fixed core 32; an iron core sealing element 35 is arranged at one end of the movable iron core 31 facing the pilot valve port 211 of the flow channel 21, and the movable iron core 31 can drive the iron core sealing element 35 to seal the pilot valve port 211.

Specifically, when the electromagnetic coil 34 is energized with a forward current, the electromagnetic coil 34 generates an attracting magnetic field to the movable iron core 31, so that the movable iron core 31 compresses the spring 33 to move toward the fixed iron core 32, and drives the iron core sealing member 35 fixed on the movable iron core 31 to separate from the pilot valve port 211 of the valve cover 20 flow channel 21, so that the valve cover 20 flow channel 21 is conducted, and when the electromagnetic coil is not energized, the movable iron core 31 is always attached to the fixed iron core 31 by the attraction of the magnet 37 and the fixed iron core 31, so as to keep the flow channel 21 conducted, so that the irrigation valve is always in an open state; when the electromagnetic coil 34 is energized with reverse current, the electromagnetic coil 34 generates a reverse magnetic field, overcomes the magnetic force of the magnet, and makes the iron core sealing member 35 on the movable iron core 31 always abut against the pilot valve opening 211 of the valve cover 20 flow channel 21, so that the valve cover 20 flow channel 21 is cut off, and the irrigation valve is closed.

The iron core assembly 30 further comprises a magnetizer 36, the magnetizer 36 is arranged at one end, far away from the magnetizer 22, of the electromagnetic coil 34, and O-shaped rings 202 are respectively arranged between the electromagnetic coil 34 and the magnetizer 36 and between the magnetizer 36 and the magnetizer 22 and used for sealing the electromagnetic coil 34, so that the water resistance of the whole irrigation valve is achieved.

As can be seen from the above, in the irrigation valve of the present invention, when the medium introduced from the inlet 11 of the valve body 10 enters the valve cover 20 through the first connecting channel 14 of the valve body 10 and the orifice 171 of the flow guide block 17 under the double filtration of the coarse filter screen 102 and the filter screen 101, when the flow channel 21 of the valve cover 20 is cut off by the iron core assembly 30, the main valve opening 12 of the valve body 10 is blocked by the diaphragm assembly 16, so that the medium in the valve cover 20 cannot flow to the outlet 13 of the valve body 10, that is, the irrigation valve is in a closed state; when the iron core assembly 30 is aligned with the channel 21 of the valve cover 20, the medium in the valve cover 20 passes through the channel 21 of the valve cover 20 and the second connecting channel 15 of the valve body 10 and enters the outlet 13 of the valve body 10, and the diaphragm assembly 16 removes the blocking of the valve body 10, so that the medium in the valve cover 20 flows out to the outlet 13 of the valve body 10 through the main valve port 12, and the conduction of the medium is realized when the irrigation valve works.

To sum up, the utility model provides an irrigation valve sets up through filtering reasonable structure for this irrigation valve during operation, can use and filter and carry out impurity filtering to the medium imported by the valve body, and here simultaneously, the impurity that filters out on filtering piece can be washed away simultaneously to leading-in medium, plays the effect of preventing blockking up with this, and then ensures this irrigation valve during operation to flow control's stability.

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 represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An irrigation valve characterized by: the valve comprises a valve body, a valve cover arranged on the valve body and an iron core assembly; the valve body has an inlet, a main valve port and an outlet; the valve body is provided with a first connecting channel at the position of the inlet, and a second connecting channel at the position of the outlet, wherein the valve cover is provided with a flow passage, and the first connecting channel is communicated with the second connecting channel through the flow passage; the valve body is provided with a diaphragm assembly at the position of the main valve port and used for selectively plugging the main valve port; the iron core assembly is arranged on the valve cover and used for controlling the on-off of the flow channel; the valve body is in the position of import is equipped with filters, filter pack's filter portion parcel first connecting channel with the interface that the import is connected.

2. The irrigation valve of claim 1, wherein: the filter piece is set as a filter screen, and the central axis of the mesh hole on the filter screen is vertical to the flow direction of the medium led in from the inlet of the valve body.

3. An irrigation valve according to claim 2, wherein: the valve body is provided with a loose joint at the position of the inlet and is used for connecting an external pipeline.

4. An irrigation valve according to claim 3, wherein: the filter screen sets up to I shape structure, the filter screen passes through the loose joint is spacing to lean on in the valve body.

5. An irrigation valve according to claim 2, wherein: the import position of valve body is equipped with the coarse strainer, wherein the mesh aperture of coarse strainer is greater than the mesh aperture of filter screen.

6. The irrigation valve of claim 5, wherein: the central axis of the meshes on the coarse filter screen is parallel to the flow direction of the medium led in from the inlet of the valve body.

7. The irrigation valve of claim 1, wherein: the valve body is provided with a flow guide block at the position of an interface of the first connecting channel connected with the flow channel, and the aperture of the throttling hole on the flow guide block is smaller than the aperture of the flow channel.

8. The irrigation valve of claim 1, wherein: the valve cover is fixedly connected with a magnetic conduction plate, and the iron core assembly is fixed on the valve cover in a limiting mode through the magnetic conduction plate.

9. The irrigation valve of claim 8, wherein: the iron core assembly comprises a movable iron core, a fixed iron core arranged opposite to the movable iron core, a magnet arranged in the fixed iron core, a spring with two ends respectively abutted against the movable iron core and the fixed iron core, and an electromagnetic coil arranged on the periphery of the fixed iron core; and an iron core sealing element is arranged at one end of the movable iron core, which faces the valve guide port of the flow channel, and the movable iron core can drive the iron core sealing element to seal the valve guide port.

10. The irrigation valve of claim 9, wherein: the iron core component further comprises a magnetizer, the magnetizer is arranged at one end of the magnetic conduction plate, far away from the electromagnetic coil, and the electromagnetic coil is provided with O-shaped rings between the magnetic conduction plate and the magnetizer respectively.