CN214093240U

CN214093240U - Air pressure electromagnetic valve

Info

Publication number: CN214093240U
Application number: CN202022255875.XU
Authority: CN
Inventors: 张彬; 王超辉; 张龙岗
Original assignee: Xinxiang Beifang Hydraulic Transmission Machinery Co ltd
Current assignee: Xinxiang Beifang Hydraulic Transmission Machinery Co ltd
Priority date: 2020-10-12
Filing date: 2020-10-12
Publication date: 2021-08-31
Anticipated expiration: 2030-10-12

Abstract

The utility model belongs to the technical field of air pressure control, and particularly discloses an air pressure solenoid valve, which comprises a solenoid valve body, wherein an inlet of the solenoid valve body is provided with a filtering part, the filtering part comprises a shell and a filter element, a first end and an inlet of the shell are detachably connected, the first end and the inlet of the shell are provided with accommodating cavities for installing the filter element, the diameter of the accommodating cavities is larger than the outer diameter of the filter element, and a second end of the shell is provided with an air inlet communicated with the accommodating cavities; the import at the solenoid valve body sets up the filter house in order to filter the impurity in the medium, set up the filter core in the casing, so that the pipeline of solenoid valve body is arranged into after the air medium who flows in from the air inlet on the casing gets into the filter core, and the upper end cover of filter core sets up protruding ring channel joint in with the casing, with the location installation filter core, and realize the sealing of upper end cover and air inlet through the joint between arch and the ring channel, and set up supporting mechanism through the lower end cover at the filter core, in order to guarantee that filter core and second end closely contradict.

Description

Air pressure electromagnetic valve

Technical Field

The utility model belongs to the technical field of pneumatic control's technique and specifically relates to an atmospheric pressure solenoid valve.

Background

The air pressure electromagnetic valve is common equipment in the field of air pressure control and is of a normally closed structure, and after an electromagnet of the air pressure electromagnetic valve is electrified, the generated electromagnetic force pushes a movable iron core assembly to move upwards to open the electromagnetic valve; the electromagnet is reset through a spring after being powered off, and the electromagnetic valve is closed; the pneumatic solenoid valve can be controlled in a plurality of ways.

But the air pressure solenoid valve has higher requirement on the cleanness degree of the medium, and if more impurities exist in the medium, the accumulation is easily formed at the movable iron core assembly, so that the product is blocked.

SUMMERY OF THE UTILITY MODEL

To the problem among the prior art, the utility model aims at providing an atmospheric pressure solenoid valve to increase the performance and the life-span of oil filter.

In order to achieve the above purpose, the technical scheme of the utility model is that:

a pneumatic solenoid valve comprises a solenoid valve body, wherein a filtering part is arranged at an inlet of the solenoid valve body, the filtering part comprises a shell and a filter element, a first end of the shell is detachably connected with the inlet, an accommodating cavity for mounting the filter element is formed in the first end of the shell, the diameter of the accommodating cavity is larger than the outer diameter of the filter element, and an air inlet communicated with the accommodating cavity is formed in the second end of the shell;

one side that holds the chamber and be located the second end is provided with the ring channel coaxial with the air inlet to the joint sets up the annular of the upper end cover of filter core is protruding, it is sealed to adopt the sealing washer between annular arch and the ring channel, so that flow in the gas of air inlet passes the filter core gets into the solenoid valve body, just the lower extreme cover of filter element group spare pass through supporting mechanism with this internal pipeline inner wall of solenoid valve is contradicted to there is the clearance that supplies the gas circulation between the inner wall of messenger's lower extreme cover and pipeline.

Further, the supporting mechanism is a supporting plate arranged on the lower end cover, and the supporting plate is provided with a cross groove.

Further, one side of the accommodating cavity positioned at the first section is provided with a flaring.

Further, the supporting mechanism is a telescopic spring, and the lower end cover is abutted against the inner wall of the pipeline in the electromagnetic valve body through the telescopic spring.

Further, the shell and the solenoid valve body are in threaded connection.

Further, the solenoid valve body is a multi-path solenoid valve body.

Compared with the prior art, the utility model provides a pair of atmospheric pressure solenoid valve structure is distinctive, the import at the solenoid valve body sets up the filter house in order to filter the impurity in the medium, specifically, set up the filter core in the casing, so that the pipeline of solenoid valve body is gone into after the air medium that flows in from the air inlet on the casing gets into the filter core, and the upper end cover of filter core sets up protruding ring channel joint in and the casing, with the location installation filter core, and realize the sealed of upper end cover and air inlet through the joint between arch and the ring channel, avoid getting into the pipeline of solenoid valve body from the clearance between upper end cover of filter core and the second end from the medium that the air inlet flows in, and set up supporting mechanism through the lower end cover at the filter core, in order to guarantee that filter core and second end closely contradict, avoid the filter core to rock.

Drawings

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

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a partial enlarged view of the position a of the present invention.

In the figure: 1. the electromagnetic valve comprises an electromagnetic valve body, an inlet 2, a filter part 3, a shell 4, an air inlet 5, a second end 6, an annular groove 7, a protrusion 8, an upper end cover 801, a lower end cover 802, an accommodating cavity 9, a first end 10 and a cross groove 11.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and 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.

As shown in fig. 1 and 2, an air pressure solenoid valve as a preferred embodiment of the present invention includes a solenoid valve body 1, an inlet 2 of the solenoid valve body 1 is provided with a filter portion 3, the filter portion 3 includes a housing 4 and a filter element, a first end 10 of the housing 4 is detachably connected to the inlet 2 and is provided with a receiving cavity 9 for installing the filter element, the receiving cavity 9 is communicated with the inlet 2, a diameter of the receiving cavity 9 is larger than an outer diameter of the filter element, a second end 6 of the housing 4 is provided with an air inlet 5 communicated with the receiving cavity 9, the air inlet 5 is used for connecting a pipeline for introducing a gas medium from the outside, in a specific operation, the gas medium enters an inner hole of the filter element from the air inlet 5, is discharged into a gap between the receiving cavity 9 and the filter element from a filter screen of a side wall of the filter element, and flows into the pipeline inside the solenoid valve body 1 along the gap;

one side that holds cavity 9 and be located second end 6 is provided with the ring channel 7 coaxial with air inlet 5 to the joint sets up the annular protrusion 8 of the upper end cap 801 of filter core, it is sealed to adopt the sealing washer between annular protrusion 8 and the ring channel 7, so that flow in the gas of air inlet 5 passes the filter core gets into solenoid valve body 1, just the lower end cap 802 of filter core subassembly pass through supporting mechanism with pipeline inner wall in the solenoid valve body 1 is contradicted to there is the clearance of air feed circulation between the inner wall that makes lower end cap 802 and pipeline, avoids the lower end cap 802 of filter core to obstruct gaseous circulation in the pipeline of solenoid valve body 1.

Use the utility model provides a during the atmospheric pressure solenoid valve, 2 import at solenoid valve body 1 set up filter house 3 in order to filter the impurity in the medium, specifically, set up the filter core in casing 4, so that the air medium who flows in from 5 air inlets on casing 4 gets into the pipeline of solenoid valve body 1 behind the filter core, and the upper end cover 801 of filter core sets up ring channel 7 joint in protruding 8 and the casing 4, with the location installation filter core, and realize upper end cover 801 and air inlet 5's sealed through the joint between protruding 8 and the ring channel 7, avoid getting into solenoid valve body 1's pipeline from the clearance between upper end cover 801 of filter core and the second end 6 from the medium that air inlet 5 flowed in, and set up supporting mechanism through the lower end cover 802 at the filter core, in order to guarantee that filter core and second end 6 closely contradict, avoid the filter core to rock.

On the basis of the above embodiment, the supporting mechanism is a supporting plate arranged on the lower end cover 802, the supporting plate is attached to the lower end cover 802, the supporting plate is provided with a cross groove 11, and the cross groove 11 is used for gas medium circulation, so that pipelines on two sides of the filter element in the solenoid valve body 1 are communicated through the cross groove 11.

For better technical effect, the side of the accommodating cavity 9 at the first end 10 is provided with a flaring, so that the gaseous medium is filtered out from the side wall of the filter element and enters the pipeline of the solenoid valve body 1, and the flow area is increased.

In another embodiment, the supporting mechanism is an extension spring, the lower end cover 802 is in conflict with the inner wall of the pipeline in the solenoid valve body 1 through the extension spring, a pre-tightening force is applied to the filter element through the extension spring, a gap between the axial direction of the filter element and the inner wall of the pipeline of the solenoid valve body 1 is effectively eliminated, the filter element is prevented from shaking, and the gap is reserved between the lower end cover 802 and the inner wall of the pipeline of the filter element for gas circulation.

Specifically, the housing 4 and the solenoid valve body 1 are connected by screw threads.

In the above embodiment, the solenoid valve body 1 is a multi-way solenoid valve body.

Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pneumatic solenoid valve comprises a solenoid valve body and is characterized in that a filtering part is arranged at an inlet of the solenoid valve body, the filtering part comprises a shell and a filter element, a first end of the shell is detachably connected with the inlet, an accommodating cavity used for installing the filter element is formed in the first end of the shell, the diameter of the accommodating cavity is larger than the outer diameter of the filter element, and an air inlet communicated with the accommodating cavity is formed in the second end of the shell;

one side that holds the chamber and be located the second end is provided with the ring channel coaxial with the air inlet to the joint sets up the annular of the upper end cover of filter core is protruding, it is sealed to adopt the sealing washer between annular arch and the ring channel, so that flow in the gas of air inlet passes the filter core gets into the solenoid valve body, just the lower end cover of filter core pass through supporting mechanism with this internal pipeline inner wall of solenoid valve is contradicted, so that there is the clearance of gas circulation between the inner wall of lower end cover and pipeline.

2. The pneumatic solenoid valve as claimed in claim 1, wherein the support mechanism is a support plate disposed on the lower end cap, and the support plate is formed with a criss-cross groove.

3. The pneumatic solenoid valve of claim 2, wherein a side of said receiving cavity at said first end is flared.

4. The pneumatic solenoid valve according to claim 1, wherein the support mechanism is a telescopic spring, and the lower end cap abuts against an inner wall of the pipeline in the solenoid valve body through the telescopic spring.

5. The pneumatic solenoid valve of claim 1, wherein said housing and solenoid valve body are threaded.

6. The pneumatic solenoid valve according to claim 1, wherein said solenoid valve body is a multi-way solenoid valve body.