CN212657258U

CN212657258U - Pilot valve with lateral water through hole

Info

Publication number: CN212657258U
Application number: CN202021359257.3U
Authority: CN
Inventors: 易红宝; 于洁云
Original assignee: Shenzhen Yideheng Electronic Co ltd; Shenzhen Zanty Motor Co ltd
Current assignee: Shenzhen Yideheng Electronic Co ltd; Shenzhen Zanty Motor Co ltd
Priority date: 2020-07-10
Filing date: 2020-07-10
Publication date: 2021-03-05
Anticipated expiration: 2030-07-10

Abstract

The utility model relates to a pilot valve with a lateral water through hole, a first cavity is formed between an electromagnet assembly of the pilot valve and an upper valve seat; a communication port between the water inlet end and the water outlet end is controlled to be opened and closed by a valve plate part, the valve plate part is provided with an elastic part for generating closing acting force, and a second cavity is formed between the valve plate part and the upper valve seat; the first chamber is communicated with the second chamber, and the second chamber is communicated with the water inlet end; one end of the water through hole of the pilot valve is communicated to the first cavity, and the other end of the water through hole extends to the drainage end through the bodies of the upper valve seat and the lower valve seat; one end of the water through hole is controlled to open and close by a slide rod of the electromagnet assembly. The improved pilot valve has the advantages that the water hole structure can effectively avoid the backflow phenomenon of water, the action of the sliding rod is not influenced by backflow, and the pilot valve can be applied to a high-pressure conveying pipeline; in addition, the valve plate part does not need to be assembled with a column structure like the prior art, and the sealing performance of the valve plate part is ensured more easily.

Description

Pilot valve with lateral water through hole

Technical Field

The utility model relates to a pilot valve, especially the water hole structure of crossing in the valve.

Background

The prior pilot valve comprises an upper valve seat and a lower valve seat which are assembled and connected, and is internally provided with an electromagnet assembly, a valve plate, a water passing hole, a channel and other structures. And a cavity communicated with the water inlet end of the channel is arranged above the valve plate, the outlet end of the valve plate is communicated with a water through hole, and the opening and closing of the water through hole are controlled by the electromagnet assembly. The water pressure in the chamber is equal to the inlet end of the channel in the closed state, and the valve plate is pressed downwards to be kept in the sealing state. When the electromagnetic valve is opened, the sliding rod of the electromagnet assembly is retracted, water in the cavity can flow out to the channel drainage end through the water passing hole, the valve plate is jacked upwards by the water pressure of the channel water inlet end after the pressure of the cavity is reduced, and the channel is in an open state.

However, the water hole structure of the pilot valve is not properly arranged and is positioned in the middle of the valve plate, when the channel is in the opening state, the water inlet end is close to the channel, stronger impact force is applied to the channel, and partial water flow flows back upwards along the water hole, so that the downward closing action of the electromagnet sliding rod is even affected. Accordingly, there is a need for improvements in prior pilot valves.

SUMMERY OF THE UTILITY MODEL

One technical problem solved by one aspect of the present disclosure is to provide a pilot valve having an improved water passing hole structure.

The utility model provides a technical scheme that its technical problem adopted is: the pilot valve comprises an upper valve seat and a lower valve seat which are assembled and connected, a water inlet end and a water discharge end are arranged in the pilot valve, the upper valve seat is provided with an electromagnet assembly, and a first cavity is formed between the electromagnet assembly and the upper valve seat; the communication port between the water inlet end and the water outlet end is controlled to be opened and closed by a valve plate part, the valve plate part is provided with an elastic part for generating closing acting force, and a second cavity is formed between the valve plate part and the upper valve seat; the first chamber is communicated with the second chamber, and the second chamber is communicated with the water inlet end; one end of a water through hole of the pilot valve is communicated to the first cavity, and the other end of the water through hole extends to the drainage end through the bodies of the upper valve seat and the lower valve seat; one end of the water through hole is controlled to be opened and closed by a sliding rod of the electromagnet assembly.

The pilot valve with the lateral water through hole is characterized in that a first through hole is formed in the edge area of the valve piece part to connect the water inlet end and the first cavity; the upper valve seat is provided with a second through hole to connect the first chamber and the second chamber.

The pilot valve with the lateral water through hole is characterized in that the valve piece part is clamped and fixed at the assembling position of the upper valve seat and the lower valve seat, the lower part of the valve piece part corresponds to the communication port, and the elastic part is a compression spring with two ends respectively abutted to the upper valve seat and the valve piece part.

According to the pilot valve with the lateral water through hole, the water inlet end, the water discharge end and the communication port are formed in the lower valve seat, the water inlet end and the water discharge end are transversely arranged, and the communication port is longitudinally arranged.

The pilot valve with the lateral water through hole is bent.

The pilot valve with the lateral water through hole comprises three sections which are connected in sequence, wherein a first section corresponding to the sliding rod is longitudinally arranged in the body of the upper valve seat, a second section is transversely arranged in the body of the upper valve seat, and a third section is longitudinally arranged in the lower valve seat; the second section and the third section are butted at the assembling position of the upper valve seat and the lower valve seat, and the assembling position is provided with a sealing ring.

One advantageous effect brought by one aspect of the present disclosure: the improved pilot valve can effectively avoid backflow phenomenon of the water holes and can deal with higher pressure fluid transportation.

Drawings

Certain embodiments of the invention will now be described in detail, by way of example and not limitation, with reference to the figures, in which like reference numerals identify identical or similar parts or features. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale.

In the drawings:

FIG. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is a schematic view of the upper valve seat of the present invention;

FIG. 3 is a schematic view of the lower valve seat of the present invention;

FIG. 4 is a schematic view of a valve plate portion of the present invention;

FIG. 5 is a schematic view of the present invention;

the designations in the figures illustrate the following:

1. an upper valve seat; 2. a lower valve seat; 201. a water inlet end; 202. a drainage end; 203. a communication port; 3. an electromagnet assembly; 4. a valve plate portion; 401. a first through hole; 5. a first chamber; 6. a second chamber; 7. water passing holes; 701. a first section (water through hole); 702. a second section (water through hole); 703. and a third section (water passing hole).

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them.

All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs.

The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a," "an," or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

Referring to fig. 1-5, a pilot valve with lateral water holes is shown, which comprises an upper valve seat 1 and a lower valve seat 2 assembled together, and a water inlet end 201 and a water outlet end 202 are arranged in the pilot valve. The upper valve seat 1 is provided with an electromagnet assembly 3, and a first chamber 5 is formed between the electromagnet assembly 3 and the upper valve seat 1; the communication port 203 between the water inlet end and the water outlet end 202 is controlled to be opened and closed by the valve plate part 4, the valve plate part 4 is provided with an elastic part for generating closing acting force, a second chamber 6 is formed between the valve plate part 4 and the upper valve seat 1, and the water pressure change of the second chamber 6 controls the valve plate part 4 to act; the first chamber 5 is communicated with the second chamber 6, and the second chamber 6 is communicated with the water inlet end; one end of a water through hole 7 of the pilot valve is communicated to the first chamber 5, and the other end of the water through hole extends to the drainage end 202 through the bodies of the upper valve seat 1 and the lower valve seat 2; one end of the water through hole 7 is controlled to be opened and closed by a sliding rod of the electromagnet assembly 3.

The water is conveyed as an example, the water flows into the second chamber 6 from the water inlet end 201 in a closed state, then enters the first chamber 5 from the second chamber 6, the water hole 7 is blocked by the slide bar of the electromagnet assembly 3 at the moment, the water pressure in the second chamber 6 is equal to the water pressure at the water inlet end 201, and the valve plate part 4 is pressed down to close the communication port 203 under the reinforcing effect of the elastic member, so that the water flow cannot flow from the water inlet end 201 to the water drainage end 202.

When the valve is opened, the electromagnet assembly 3 controls the slide rod to move upwards to remove the blocking of the water through hole 7, water is conveyed to the water discharging end 202 through the water through hole 7, the pressure of the second chamber 6 is reduced, the water pressure of the water inlet end 201 can jack the valve piece part 4 upwards (at the moment, the elastic part is in a contraction state), and therefore the water inlet end 201 is communicated with the water discharging end 202. In the valve opening state, the position of the water through hole 7 corresponds to the drainage end 202, the water through hole is deviated to the rear side, and compared with the water inlet end 201, the water flow at the position is relatively flat, so that the water backflow phenomenon can be effectively reduced, the phenomenon that the water backflow influences the downward closing action of the sliding rod is also avoided, and the improved pilot valve can be applied to a higher-pressure conveying pipeline.

In some embodiments, to communicate the water inlet end with the first chamber 5, a first through hole 401 may be disposed in an edge region of the valve sheet portion 4, where the edge region is understood as a position on the valve sheet portion 4 that does not affect the sealing of the communication port 203; and the upper valve seat 1 can be provided with a second through hole connecting the first chamber 5 and the second chamber 6. The number of the first through holes 401 and the second through holes may be one or more.

In some embodiments, the upper valve seat 1 and the lower valve seat 2 are vertically and correspondingly assembled and fixed, the valve sheet portion 4 is clamped and fixed at the assembly position by the upper valve seat 1 and the lower valve seat 2, the communication port 203 corresponds to the lower portion of the valve sheet portion 4, the elastic member is a compression spring, two ends of the compression spring are respectively abutted to the upper valve seat 1 and the valve sheet portion 4, and preferably, the compression spring can be of a tower-shaped structure.

In some embodiments, the water inlet end 201, the water outlet end 202 and the communication opening 203 are formed in the lower valve seat 2, the water inlet end 201 and the water outlet end 202 are transversely arranged, and the communication opening 203 is longitudinally arranged. If adopt current water hole 7 mode of setting up of crossing, set up vertical cylinder in the middle of valve block portion 4, set up the water hole in the middle of the cylinder, when water flows to intercommunication mouth 203 from the end of intaking, rivers can collide with intercommunication mouth 203 lateral wall, there is great probability water can follow the water hole and up flow backwards, and because it is the straight line correspondence to cross the water hole and slide bar, water can undamped flow backwards to the slide bar position, the downstream closed action of slide bar can be obstructed, consequently, current pilot valve can not be fine be applicable to in the high pressure feed line, perhaps need strengthen electromagnet power again, nevertheless can lead to the pilot valve volume grow. And the rivers passageway setting of the water hole 7 structure cooperation this embodiment after the improvement just can more effectively avoid this problem, crosses water hole 7 and is connected to drainage end 202, and drainage end 202 is in the rear side, and the rivers direction is steady single, can not take place the refluence phenomenon basically.

Further, on the basis of the scheme of the water through hole 7, the path of the water through hole 7 is set to be a bent shape, for example, the water through hole 7 includes three sections connected in sequence, a first section 701 corresponding to the slide bar is longitudinally arranged in the body (referred to as the body part) of the upper valve seat 1, a second section 702 is transversely arranged in the body of the upper valve seat 1, and a third section 703 is longitudinally arranged in the lower valve seat 2; the second section 702 and the third section 703 are butted at the assembling position of the upper valve seat 1 and the lower valve seat 2, and sealing rings are arranged at the assembling position. The bent water through holes 7 increase resistance to water backflow, and backflow water is prevented from affecting the action of the sliding rod more effectively.

In conclusion, the improved pilot valve has the structure that the water holes 7 can effectively avoid the backflow phenomenon of water, the action of the sliding rod is not influenced by the backflow, and the pilot valve can be applied to a high-pressure conveying pipeline; in addition, the valve plate part 4 does not need to be assembled with a column structure like the prior art, and the sealing performance of the valve plate part is easier to guarantee.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, which may be modified, combined, and varied by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The pilot valve that has the water hole is crossed to the side direction, the pilot valve is equipped with into water end, drainage end, its characterized in that including last disk seat, the lower disk seat of equipment connection in it:

the upper valve seat is provided with an electromagnet assembly, and a first cavity is formed between the electromagnet assembly and the upper valve seat; the communication port between the water inlet end and the water outlet end is controlled to be opened and closed by a valve plate part, the valve plate part is provided with an elastic part for generating closing acting force, and a second cavity is formed between the valve plate part and the upper valve seat; the first chamber is communicated with the second chamber, and the second chamber is communicated with the water inlet end;

one end of a water through hole of the pilot valve is communicated to the first cavity, and the other end of the water through hole extends to the drainage end through the bodies of the upper valve seat and the lower valve seat; one end of the water through hole is controlled to be opened and closed by a sliding rod of the electromagnet assembly.

2. A pilot valve having a lateral flow-through hole as set forth in claim 1, wherein: the edge area of the valve piece part is provided with a first through hole so as to be connected with the water inlet end and the first cavity; the upper valve seat is provided with a second through hole to connect the first chamber and the second chamber.

3. A pilot valve having a lateral flow-through hole as set forth in claim 1, wherein: the valve piece part is fixedly clamped at the assembling position of the upper valve seat and the lower valve seat, the lower part of the valve piece part corresponds to the communication port, and the elastic piece is a compression spring with two ends respectively abutted against the upper valve seat and the valve piece part.

4. A pilot valve having a lateral flow-through hole as set forth in claim 1, wherein: the water inlet end, the water discharge end and the communication port are formed in the lower valve seat, the water inlet end and the water discharge end are transversely arranged, and the communication port is longitudinally arranged.

5. A pilot valve having a lateral flow-through hole as set forth in claim 1, wherein: the water holes are bent.

6. A pilot valve having a lateral flow-through hole as set forth in claim 5, wherein: the water through hole comprises three sections which are connected in sequence, a first section corresponding to the slide bar is longitudinally arranged in the body of the upper valve seat, a second section is transversely arranged in the body of the upper valve seat, and a third section is longitudinally arranged in the lower valve seat; the second section and the third section are butted at the assembling position of the upper valve seat and the lower valve seat, and the assembling position is provided with a sealing ring.