CN212985653U

CN212985653U - Pressure-equalizing electromagnetic switch valve

Info

Publication number: CN212985653U
Application number: CN202021258198.0U
Authority: CN
Inventors: 姚晓峰; 左超杰
Original assignee: Suzhou Yuanshang Precision Machinery Co ltd
Current assignee: Suzhou Yuanshang Precision Machinery Co ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-04-16
Anticipated expiration: 2030-06-30

Abstract

The utility model discloses a voltage-sharing electromagnetic switch valve, including valve barrel and case, the case part is acceptd in the valve barrel and can be followed the valve barrel and removed, voltage-sharing electromagnetic switch valve still includes the elastic component, the case is located to the elastic component cover and both ends are contradicted with case and valve barrel respectively, the valve barrel is equipped with oil inlet and oil-out, the case is when the primary importance, oil inlet and oil-out intercommunication, the case is when the second place, the oil-out is sealed with the outer wall of case, oil inlet and oil-out disconnection, the case is equipped with a plurality of pressure-equalizing grooves, each pressure-equalizing groove is the annular and the cross-section is the V-arrangement, the pressure-equalizing groove of V type, can reduce the influence that radial unbalanced force caused greatly, prevent that the case card from dying, and also reduced the.

Description

Pressure-equalizing electromagnetic switch valve

Technical Field

The utility model relates to a ooff valve especially relates to a voltage-sharing electromagnetic switch valve.

Background

The electromagnetic switch valve is a valve for realizing communication and cut-off action control of hydraulic oil flow. A control valve which depends on the relative movement of the valve core and the valve body. There are two types, a rotary valve type and a slide valve type. Typically two-bit two-way.

The electromagnetic switch valve is generally provided with an electromagnetic element at one end and is reset by a spring, and the electromagnetic element at the two ends is also completely reset by electromagnetism.

However, the performance and service life of the existing slide valve type are not ideal, and the slide valve type is mainly in a dead state when the valve core moves. The hydraulic clamping is generally caused by the reasons that dirt enters a gap to make a valve core difficult to move, and the valve core is blocked due to the fact that the gap is too small and the valve core expands when the oil temperature rises. The main reason is that both ends are controlled by electromagnetic elements, the oil inlet and outlet holes are designed on the side surface, the valve core can have radial hydraulic pressure change no matter the switch is reversed, and if the geometric shape and the concentricity of the slide valve pair are larger, the caused radial unbalanced hydraulic pressure can lead the valve core to be blocked and not to move. If the manufacturing accuracy of the spool and valve bore is tightly controlled in order to reduce radial imbalance forces, the difficulty of manufacturing is greatly increased.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a pressure-equalizing electromagnetic switch valve which can reduce radial unbalanced force and prevent the valve core from being blocked.

The purpose of the utility model is realized by adopting the following technical scheme:

the utility model provides a voltage-sharing electromagnetic switch valve, includes valve barrel and case, the case part accept in the valve barrel can follow the valve barrel removes, voltage-sharing electromagnetic switch valve still includes the elastic component, the elastic component cover is located case and both ends respectively with the case reaches the valve barrel contradicts, the valve barrel is equipped with oil inlet and oil-out, the extending direction of oil inlet with the moving direction of case is the same, the case is when the primary importance, the oil inlet with the oil-out intercommunication, the case is when the secondary importance, the oil-out with the outer wall of case is sealed, the oil inlet with the oil-out disconnection.

Further, the elastic member is a spring.

Furthermore, the valve sleeve is provided with a first abutting end, the valve core is provided with a second abutting end, and two ends of the spring are abutted against the first abutting end and the second abutting end respectively.

Further, the first contact end is a flange.

Further, the second contact end is a flange.

Furthermore, the valve sleeve is provided with an inner wall, and the inner wall is in sealing fit with the outer wall of the valve core.

Further, the oil outlet is located at the side of the valve housing.

Compared with the prior art, the utility model discloses voltage-sharing electromagnetic switch valve's valve barrel is equipped with oil inlet and oil-out, the extending direction of oil inlet is the same with the moving direction of case, the case is when the primary importance, oil inlet and oil-out intercommunication, the case is when the second place, the oil-out is sealed with the outer wall of case, the oil inlet breaks off with the oil-out, the case is equipped with a plurality of pressure-equalizing grooves, each pressure-equalizing groove is the annular and the cross-section is the V-arrangement, the pressure-equalizing groove of V type, can reduce the influence that radial unbalanced force caused greatly, prevent that the case card dies, and also reduced the degree of difficulty above making, the processing cost.

Drawings

Fig. 1 is a perspective view of the pressure-equalizing electromagnetic switch valve of the present invention;

fig. 2 is a perspective view of a valve body of the pressure equalizing electromagnetic opening/closing valve of fig. 1;

FIG. 3 is a cross-sectional view of the pressure equalizing electromagnetic switching valve of FIG. 1;

fig. 4 is another sectional view of the pressure equalizing electromagnetic opening/closing valve of fig. 1.

In the figure: 10. a valve housing; 11. an oil inlet; 12. an oil outlet; 13. a first contact end; 14. an inner wall; 20. a valve core; 21. an outer wall; 22. a pressure equalizing groove; 23. a second contact end; 30. an elastic member.

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.

It will be understood that when a structure is referred to as being "secured to" another structure, it can be directly on the other structure or intervening structures may also be present, secured by the intervening structures. When a structure is referred to as being "connected" to another structure, it can be directly connected to the other structure or intervening structures may also be present. When a structure is referred to as being "disposed on" another structure, it can be directly on the other structure or intervening structures may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

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. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 4, in order to illustrate an embodiment of a voltage-sharing electromagnetic switch valve of the present invention, the voltage-sharing electromagnetic switch valve includes a valve housing 10, a valve core 20, and an elastic member 30.

The valve housing 10 is provided with an oil inlet 11, an oil outlet 12 and a first contact end 13. An oil inlet 11 is located at the end of the valve housing 10. The oil inlet 11 extends in the same direction as the valve housing 10. The oil outlet port 12 is located at the side of the valve housing 10. The valve sleeve 10 is of a hollow structure, and the oil inlet 11 and the oil outlet 12 are communicated with the interior of the valve sleeve 10. The number of the oil outlets 12 is several, and the several oil outlets 12 are evenly distributed on the side of the valve housing 10 at intervals. The connecting lines of the oil outlets 12 are circular. The first abutment end 13 is located at the end of the valve housing 10 and is a flange. The housing 10 also includes an inner wall 14.

The valve core 20 includes an outer wall 21, a pressure equalizing groove 22, and a second abutting end 23. The pressure equalizing grooves 22 are divided into two parts which are evenly distributed on the outer wall 21 at intervals. Each of the pressure equalizing grooves 22 has a ring shape. Each of the pressure equalizing grooves 22 has a V-shaped cross section. The second abutment end 23 is a flange.

The elastic member 30 is a spring.

When the pressure equalizing electromagnetic switch valve is assembled, the valve element 20 is partially housed in the valve housing 10, and the outer wall 21 of the valve element 20 is sealed with the inner wall 14 of the valve housing 10. The elastic element 30 is sleeved on the valve element 20 and two ends thereof respectively abut against the first abutting end 13 and the second abutting end 23. Under the condition that the electromagnetic element is not electrified, the valve core 20 pushes a push rod of the electromagnetic element under the action of spring force, the position of the valve core 20 is shown in figure 3, the oil inlet 11 is communicated with the oil outlet 12, and the valve is opened. When the electromagnetic element is energized, the push rod pushes the valve core 20 to move, and the elastic element 30 is compressed, so that the valve core 20 is positioned as shown in fig. 4. The oil outlet 12 is sealed by the outer wall 21, the oil inlet 11 is disconnected from the oil outlet 12, and the valve is closed. After the electromagnetic element loses power, the push rod is reversed, and the valve core 20 rebounds to the initial position under the action of the spring to realize resetting. In the above process, although the valve core 20 has other through holes, the chambers connected by the through holes have sealing components, and the oil flow path is not influenced.

In this application, because the oil inlet 11 is located the valve barrel 10 tip, the extending direction of oil inlet 11 is the same with the moving direction of case 20, and radial hydraulic pressure changes for a short time during the use, reduces radial unbalanced hydraulic pressure power, prevents that case 20 from blocking. The V-shaped pressure equalizing groove 22 can greatly reduce the influence caused by radial unbalanced force, and also reduces the difficulty in manufacturing and the processing cost.

The above examples only represent some embodiments of the present invention, and the description thereof is more 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 concept of the present invention, several modifications and improvements can be made, all according to the equivalent modifications and evolutions of the present invention, which are made to the above embodiments by the essential technology, and all belong to the protection scope of the present invention.

Claims

1. A voltage-sharing electromagnetic switch valve comprises a valve sleeve and a valve core, wherein the valve core is partially contained in the valve sleeve and can move along the valve sleeve, and the voltage-sharing electromagnetic switch valve is characterized in that: the pressure-equalizing electromagnetic switch valve further comprises an elastic piece, the elastic piece is sleeved on the valve core, two ends of the elastic piece are respectively abutted against the valve core and the valve sleeve, the valve sleeve is provided with an oil inlet and an oil outlet, the oil inlet is communicated with the oil outlet when the valve core is at a first position, the oil outlet is sealed with the outer wall of the valve core when the valve core is at a second position, the oil inlet is disconnected with the oil outlet, the valve core is provided with a plurality of pressure-equalizing grooves, and each pressure-equalizing groove is annular and has a V-shaped cross section.

2. The pressure equalizing electromagnetic switching valve according to claim 1, characterized in that: the elastic piece is a spring.

3. The pressure equalizing electromagnetic switching valve according to claim 2, characterized in that: the valve sleeve is provided with a first abutting end, the valve core is provided with a second abutting end, and two ends of the spring are abutted against the first abutting end and the second abutting end respectively.

4. A pressure equalizing electromagnetic switch valve according to claim 3, characterized in that: the first contact end is a flange.

5. A pressure equalizing electromagnetic switch valve according to claim 3, characterized in that: the second contact end is a flange.

6. The pressure equalizing electromagnetic switching valve according to claim 1, characterized in that: the valve sleeve is provided with an inner wall, and the inner wall is in sealing fit with the outer wall of the valve core.

7. The pressure equalizing electromagnetic switching valve according to claim 1, characterized in that: the oil outlet is located on the side of the valve sleeve.