CN213711998U

CN213711998U - Electromagnetic valve for preventing medium from flowing back

Info

Publication number: CN213711998U
Application number: CN202022846578.2U
Authority: CN
Inventors: 蒋宁
Original assignee: Changzhou Hanke Machinery Co ltd
Current assignee: Changzhou Hanke Machinery Co ltd
Priority date: 2020-12-01
Filing date: 2020-12-01
Publication date: 2021-07-16
Anticipated expiration: 2030-12-01

Abstract

The utility model discloses a prevent solenoid valve of medium backward flow relates to solenoid valve technical field. The utility model comprises a connecting pipeline and an electric actuator; a water inlet pipeline is arranged on one side surface of the connecting pipeline close to the top; a water outlet pipeline is arranged at a position close to the bottom of one side surface of the connecting pipeline; a sealing slide block is connected inside the sliding groove in a sliding manner, and a check column is fixedly connected to one side surface of the sealing slide block; the bottom in the connecting pipeline is fixedly connected with a strong spring; the upper end of the strong spring is fixedly connected with the bottom of the check column. The utility model discloses a design of connecting tube, inlet channel, outlet conduit, non return post, strong spring and ball valve, when the ball valve is open, the medium applys thrust to the non return post, makes outlet conduit and connecting tube communicate with each other, realizes the circulation of medium, and when the ball valve was closed, strong spring up pushed away the non return post to outlet conduit department, realizes outlet conduit's closure, effectively avoids the medium among the outlet conduit to flow back to in the inlet channel.

Description

Electromagnetic valve for preventing medium from flowing back

Technical Field

The utility model belongs to the technical field of the solenoid valve, especially, relate to a prevent solenoid valve of medium backward flow.

Background

The electromagnetic valve is industrial equipment controlled by electromagnetism, is an automatic basic element for controlling fluid, and belongs to an actuator; the electromagnetic valve is composed of an electromagnetic coil and a magnetic core, and is a valve body containing one or more holes, when the thread device is powered on or powered off, the magnetic core operates to cause the fluid to pass through the valve body or be cut off, so as to achieve the purpose of changing the direction of the fluid.

At present, although the electromagnetic valve in the market can control the circulation of a medium, the medium backflow cannot be prevented, the backflow of the medium can cause the whole pipeline system to be paralyzed, so that a serious safety accident is caused, and when the medium flows through the electromagnetic valve, impurities in the medium easily block the electromagnetic valve to influence the work of the electromagnetic valve, so that the electromagnetic valve for preventing the medium backflow is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prevent solenoid valve of medium backward flow, through spout, non-return post, strong spring, ball valve, impurity clearance mechanism, connecting tube and electric actuator's design, solved current solenoid valve and though can control the circulation of medium, but can not prevent the medium backward flow, the backward flow of medium can lead to whole pipe-line system paralysed to cause serious incident, and when the medium passed through the solenoid valve and flows, impurity in the medium made the solenoid valve jam easily, influence the problem of solenoid valve work.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to a solenoid valve for preventing medium backflow, which comprises a connecting pipeline and an electric actuator; a water inlet pipeline is arranged on one side surface of the connecting pipeline close to the top; a water outlet pipeline is arranged at a position, close to the bottom, of one side surface of the connecting pipeline; a chute is formed in one inner side surface of the connecting pipeline; a sealing slide block is connected inside the sliding groove in a sliding manner, and a check column is fixedly connected to one side surface of the sealing slide block; the circumferential side surface of the non-return column is in clearance fit with the inner wall of the connecting pipeline; the bottom in the connecting pipeline is fixedly connected with a plurality of strong springs; the upper end of the strong spring is fixedly connected with the bottom of the check column; the height of the check column is larger than the inner diameter of the water outlet pipeline.

Further, a ball valve is arranged inside the water inlet pipeline; the outer wall of the ball valve is in clearance fit with the inner wall of the water inlet pipeline.

Further, a valve rod is fixedly installed on the outer wall of the ball valve; the upper end of the valve rod penetrates through the outer wall of the water inlet pipeline;

the output end of the electric actuator is fixedly connected with the upper end of the valve rod through a coupler;

the bottom of the electric actuator is fixedly connected with a sleeve; the lower end of the sleeve is fixedly connected with the outer wall of the water inlet pipeline.

Furthermore, limiting grooves are symmetrically formed in the top of the connecting pipeline; the inside joint of spacing inslot has impurity clearance mechanism.

Further, the impurity cleaning mechanism comprises a sealing plate; the lower surface of the sealing plate is symmetrically and fixedly connected with a limiting plate; the circumferential side surface of the limiting plate is clamped with the inner part of the limiting groove;

the upper surface of the sealing plate is provided with a plurality of threaded holes;

the top of the connecting pipeline is provided with a plurality of thread grooves; fastening bolts are in threaded connection with the inner part of the threaded groove and the inner part of the threaded hole;

the lower surface of the sealing plate is fixedly connected with a supporting rod; the lower end of the supporting rod is fixedly connected with a filter plate; the peripheral side surface of the filter plate is in clearance fit with the inner wall of the connecting pipeline.

The utility model discloses following beneficial effect has:

1. the utility model discloses a connecting tube, electric actuator, the inlet channel, outlet conduit, the spout, the non return post, the design of strong spring and ball valve, when the ball valve is open, thrust is applyed to the non return post to medium in the connecting tube, make outlet conduit and connecting tube communicate with each other, realize the circulation of medium, when the ball valve is closed, under the elastic restoring force effect of strong spring, up push away the non return post to outlet conduit department, realize outlet conduit's closure, thereby effectively avoided the medium among the outlet conduit to flow back to in the inlet channel, guarantee medium pipeline's normal operating.

2. The utility model discloses a design of spacing groove, closing plate, limiting plate, screw hole, thread groove, bracing piece and filter plate can filter the medium in the inlet channel through the filter plate that is equipped with, gets rid of impurity, can fix the filter plate in the connecting tube through the closing plate and the bracing piece that are equipped with, and removes the filter plate to can discharge filterable impurity, and be convenient for clean the filter plate, effectively reduce solenoid valve's jam.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of a solenoid valve for preventing backflow of a medium;

FIG. 2 is a longitudinal sectional view of the structure of FIG. 1;

FIG. 3 is a front view of the structure of FIG. 2;

FIG. 4 is a schematic view of a portion of the structure of FIG. 1;

FIG. 5 is a schematic structural view of a foreign material cleaning mechanism;

in the drawings, the components represented by the respective reference numerals are listed below:

1-connecting pipeline, 2-electric actuator, 3-impurity cleaning mechanism, 101-water inlet pipeline, 102-water outlet pipeline, 103-sliding chute, 104-check column, 105-strong spring, 106-ball valve, 107-valve rod, 108-sleeve, 109-limiting groove, 301-sealing plate, 302-limiting plate, 303-threaded hole, 304-threaded groove, 305-supporting rod, 306-filter plate.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention relates to a solenoid valve for preventing medium backflow, which comprises a connecting pipe 1 and an electric actuator 2;

a water inlet pipeline 101 is arranged on one side surface of the connecting pipeline 1 close to the top;

a water outlet pipeline 102 is arranged at a position, close to the bottom, of one side surface of the connecting pipeline 1;

a chute 103 is arranged on one inner side surface of the connecting pipeline 1; a sealing slide block is connected inside the sliding groove 103 in a sliding manner, and a check column 104 is fixedly connected to one side surface of the sealing slide block; the peripheral side surface of the non-return column 104 is in clearance fit with the inner wall of the connecting pipeline 1;

the bottom in the connecting pipeline 1 is fixedly connected with a plurality of strong springs 105; the upper end of the strong spring 105 is fixedly connected with the bottom of the check column 104;

the height of the check post 104 is greater than the inner diameter of the outlet conduit 102.

As shown in fig. 1 and 3, a ball valve 106 is arranged inside the water inlet pipe 101; the outer wall of the ball valve 106 is in clearance fit with the inner wall of the water inlet pipeline 101; when the ball valve 106 is in a closed state, the check column 104 closes the water outlet pipe 102, and when the ball valve 106 is in an open state, the check column 104 moves downwards by means of the thrust of a medium, so that the water outlet pipe 102 is communicated with the connecting pipe 1, and the medium flows;

a valve rod 107 is fixedly arranged on the outer wall of the ball valve 106; the upper end of the valve rod 107 penetrates through the outer wall of the water inlet pipeline 101;

the output end of the electric actuator 2 is fixedly connected with the upper end of the valve rod 107 through a coupler;

the bottom of the electric actuator 2 is fixedly connected with a sleeve 108; the lower end of the sleeve 108 is fixedly connected with the outer wall of the water inlet pipeline 101.

As shown in fig. 1 and fig. 4-5, the top of the connecting pipeline 1 is symmetrically provided with limiting grooves 109; the impurity cleaning mechanism 3 is clamped in the limiting groove 109;

the impurity cleaning mechanism 3 comprises a sealing plate 301; the lower surface of the sealing plate 301 is symmetrically and fixedly connected with a limiting plate 302; the circumferential side surface of the limit plate 302 is clamped with the inner part of the limit groove 109;

the upper surface of the sealing plate 301 is provided with a plurality of threaded holes 303;

the top of the connecting pipeline 1 is provided with a plurality of thread grooves 304; fastening bolts are connected in the threaded groove 304 and the threaded hole 303 in a threaded manner;

the lower surface of the sealing plate 301 is fixedly connected with a support rod 305; the lower end of the support rod 305 is fixedly connected with a filter plate 306; the peripheral side surface of the filter plate 306 is in clearance fit with the inner wall of the connecting pipeline 1.

The working principle of the embodiment is as follows: when the water outlet pipe 102 is used, the ball valve 106 can be driven to rotate by the electric actuator 2 and the valve rod 107, so that the water inlet pipe 101 is opened, a medium flows into the water inlet pipe 101, when the medium flows into the connecting pipe 1 from the water inlet pipe 101, downward thrust can be applied to the check column 104, the check column 104 moves downwards until the connecting pipe 1 is communicated with the water outlet pipe 102, so that the medium can flow into the water outlet pipe 102, when the ball valve 106 is closed, because the thrust applied to the check column 104 by the medium disappears, under the action of the elastic restoring force of the strong spring 105, the check column 104 is pushed upwards until the check column 104 completely blocks the connecting opening between the water outlet pipe 102 and the connecting pipe 1, so that the medium in the water outlet pipe 102 is effectively prevented from flowing back into the connecting pipe 1, and indirectly flows back into the water inlet pipe 101, and through the clamping effect between the limiting plate 302 and the limiting groove 109 on the second pipe 2, thereby make the closing plate 301 pass through bracing piece 305 with the fixed setting in connecting tube 1's inside of filter plate 306, be convenient for filter the inside medium of intake pipe 101, and be convenient for with impurity clearance mechanism 3 and connecting tube 1's dismantlement to can discharge filterable impurity from the drain at connecting tube 1 top, and can clean filter plate 306.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A solenoid valve for preventing medium backflow comprises a connecting pipeline (1) and an electric actuator (2); the method is characterized in that:

a water inlet pipeline (101) is arranged on one side surface of the connecting pipeline (1) close to the top;

a water outlet pipeline (102) is arranged on one side surface of the connecting pipeline (1) close to the bottom;

a sliding groove (103) is formed in one inner side surface of the connecting pipeline (1); a sealing slide block is connected inside the sliding groove (103) in a sliding manner, and one side surface of the sealing slide block is fixedly connected with a check column (104); the peripheral side surface of the check column (104) is in clearance fit with the inner wall of the connecting pipeline (1);

the bottom in the connecting pipeline (1) is fixedly connected with a plurality of strong springs (105); the upper end of the strong spring (105) is fixedly connected with the bottom of the non-return column (104);

the height of the check column (104) is larger than the inner diameter of the water outlet pipeline (102).

2. A medium backflow prevention solenoid valve according to claim 1, characterized in that a ball valve (106) is provided inside the water inlet pipe (101); the outer wall of the ball valve (106) is in clearance fit with the inner wall of the water inlet pipeline (101).

3. A solenoid valve for preventing media backflow according to claim 2, characterized in that a valve stem (107) is fixedly installed on the outer wall of the ball valve (106); the upper end of the valve rod (107) penetrates through the outer wall of the water inlet pipeline (101);

the output end of the electric actuator (2) is fixedly connected with the upper end of the valve rod (107) through a coupler;

the bottom of the electric actuator (2) is fixedly connected with a sleeve (108); the lower end of the sleeve (108) is fixedly connected with the outer wall of the water inlet pipeline (101).

4. The electromagnetic valve for preventing the medium from flowing back according to claim 1, wherein the top of the connecting pipeline (1) is symmetrically provided with limiting grooves (109); the inside joint of spacing groove (109) has impurity clearance mechanism (3).

5. A medium backflow prevention solenoid valve according to claim 4, wherein the impurity cleaning mechanism (3) comprises a sealing plate (301); the lower surface of the sealing plate (301) is symmetrically and fixedly connected with a limiting plate (302); the peripheral side surface of the limiting plate (302) is clamped with the inner part of the limiting groove (109);

the upper surface of the sealing plate (301) is provided with a plurality of threaded holes (303);

the top of the connecting pipeline (1) is provided with a plurality of thread grooves (304); fastening bolts are connected to the inner part of the thread groove (304) and the inner part of the thread hole (303) in a threaded manner;

the lower surface of the sealing plate (301) is fixedly connected with a supporting rod (305); the lower end of the support rod (305) is fixedly connected with a filter plate (306); the peripheral side surface of the filter plate (306) is in clearance fit with the inner wall of the connecting pipeline (1).