CN213064785U - Filtration formula air relief pressure valve - Google Patents

Abstract

The utility model discloses a belong to the technical field of filtration equipment, specifically disclose a filtration formula air relief pressure valve, which comprises a valve body, the air inlet of valve body is with connecting be provided with the filter equipment who is used for filtering gas between the intake nozzle of air inlet, filter equipment includes the filter core, the intake nozzle is provided with and is used for holding the recess of filter core, the one end of filter core with the tip of air inlet is contradicted, the other end pass through elastic element with the tank bottom of recess is contradicted. Through be provided with filter equipment between air inlet and the intake nozzle in order to get into gas in the valve body filters, specifically does, realizes filtering gas through the filter core, and passes through elastic element will the filter core extrusion is in the tip of air inlet, guarantees the sealed of filter core tip and air inlet tip avoids the gas that the intake nozzle got into is not through the filter core directly sees through clearance between filter core tip and the air inlet tip directly gets into in the valve body.

Description

Filtration formula air relief pressure valve

Technical Field

The utility model belongs to the technical field of filtration equipment's technique and specifically relates to a filtration formula air relief pressure valve.

Background

The pressure reducing valve is a special device for automatically reducing the working pressure of a pipeline, and can reduce a medium with higher pressure to a set pressure after a given pressure reducing range is given. Because the high-pressure gas is output from the gas cylinder, the gas cylinder cannot be directly used when low-pressure gas is needed, and the high-pressure gas needs to be decompressed, the decompression valve is widely applied to various fields.

However, for some equipments with high requirements for gas cleanliness, the gas depressurized by the pressure reducing valve cannot meet the use requirements, and dust, sand grains and the like in the gas will cause damage to the equipments.

Based on this, how to filter the gas flowing through the air pressure reducing valve is a technical problem which needs to be solved by the technical personnel in the field at present.

SUMMERY OF THE UTILITY MODEL

To the problem among the prior art, the utility model aims at providing a filtration formula air relief pressure valve.

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

the utility model provides a filtration formula air relief pressure valve, includes the valve body, the air inlet of valve body is with to be connected be provided with the filter equipment who is used for filtering gaseous between the intake nozzle of air inlet, filter equipment includes the filter core, intake nozzle is provided with and is used for holding the recess of filter core, the one end of filter core with the tip of air inlet is contradicted, the other end pass through elastic element with the tank bottom of recess is contradicted.

Furthermore, the air inlet is a stepped hole, and the diameter of the inner end is small, and the diameter of the outer end is large.

Further, the elastic element is a wave-shaped gasket or a telescopic spring.

Further, the upper end cover of the filter element with the vent hole faces the air inlet, and the lower end cover faces the air inlet nozzle.

Furthermore, the lower end cover is provided with a groove extending along the radial direction.

Further, the grooves are cross-shaped.

Further, a sealing ring is arranged between the upper end cover and the end part of the air inlet.

Further, the seal ring is bonded to an end portion of the upper end cap.

Compared with the prior art, the utility model provides a pair of filtration formula air relief pressure valve structure is unusual, which comprises a valve body, the air inlet of valve body is with connecting be provided with the filter equipment who is used for filtering gaseous between the intake nozzle of air inlet, filter equipment includes the filter core, the intake nozzle is provided with and is used for holding the recess of filter core, the one end of filter core with the tip of air inlet is contradicted, the other end pass through elastic element with the tank bottom of recess is contradicted.

Through be provided with filter equipment between air inlet and the intake nozzle in order to get into gas in the valve body filters, specifically does, realizes filtering gas through the filter core, and passes through elastic element will the filter core extrusion is in the tip of air inlet, guarantees the sealed of filter core tip and air inlet tip avoids the gas that the intake nozzle got into is not through the filter core directly sees through clearance between filter core tip and the air inlet tip directly gets into in the valve body, causes and filters inefficacy.

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 diagram of a filter air relief valve.

FIG. 2 is an enlarged view of the air inlet of a filtered air relief valve.

FIG. 3 is a schematic structural view of a lower end cap in a filtering air pressure relief valve.

In the figure: 1. the air filter comprises a valve body, an air inlet 2, an upper end cover 3, a filter element 4, a lower end cover 5, a groove 6, an elastic element 7 and a groove 8.

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, 2 and 3, as a preferred embodiment of the present invention, a filtering type air pressure reducing valve includes a valve body 1, an air inlet 2 of the valve body 1 is connected to a filtering device for filtering air, which is arranged between air inlet nozzles of the air inlet 2, the filtering device includes a filter element 4, the air inlet nozzles are provided with a groove 8 for accommodating the filter element 4, one end of the filter element 4 is abutted to an end of the air inlet 2, and the other end is abutted to a bottom of the groove 8 through an elastic element 7, it should be noted that the air inlet 2 is a flared structure to facilitate installation of the air inlet nozzles, that is, the filter element 4 can be abutted to an end of the air inlet 2 to ensure sealing, specifically, the filter element 4 is an air filter element 4 with a reduced size.

Use the utility model provides a during filtration formula air relief pressure valve, through be provided with filter equipment between air inlet 2 and the intake pipe mouth in order to get into gas in the valve body 1 filters, specifically does, realizes filtering gas through filter core 4, and passes through elastic element 7 will filter core 4 extrusion is in the tip of air inlet 2 guarantees the gas of 4 tip of filter core and 2 tip of air inlet are sealed, avoid the gas that the intake pipe mouth got into is not passed through filter core 4 directly sees through clearance between 4 tip of filter core and the 2 tip of air inlet directly gets into in the valve body 1, cause and filter inefficacy.

In the above embodiment, the air inlet 2 is a stepped hole, the inner end has a small diameter, and the outer end has a large diameter, so as to form a flared structure, and the air inlet nozzle is in threaded connection with the outer end, so that the filter element 4 can be conveniently disassembled, assembled and replaced.

In particular, the elastic element 7 is a wave washer or a telescopic spring.

In this embodiment, the upper end cap 3 of the filter element 4 with the vent hole faces the air inlet 2, the lower end cap 5 faces the air inlet nozzle, that is, the gas entering the groove 8 from the air inlet nozzle enters the filter element 4 through the side wall of the filter element 4, and enters the valve body 1 from the vent hole of the upper end cap 3 along the air inlet hole, and the side wall of the filter element 4 filters the gas.

For better technical effect, the lower end cover 5 is provided with a groove 6 extending along the radial direction, the groove 6 is used for increasing the flow area of the gas at the lower end cover 5, eliminating the low gas flow rate caused by the obstruction of the lower end cover 5 and the elastic element 7, and ensuring that sufficient gas enters the filter element 4 from the side wall of the filter element 4.

Specifically, the grooves 6 are cross-shaped, and the gas flow area is further increased.

Preferably, a sealing ring is arranged between the upper end cover 3 and the end part of the air inlet 2, and the sealing ring is coaxially arranged with the air inlet 2 to ensure the sealing between the upper end cover 3 and the end part of the air inlet 2.

In order to facilitate installation, the sealing ring is bonded at the end part of the upper end cover 3 to realize integration, and the filter element 4 is only needed to be installed at the later stage, so that the dislocation of the sealing ring and the filter element 4 or the air inlet 2 is avoided.

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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a 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 (8)

1. The utility model provides a filtration formula air relief pressure valve, includes the valve body, its characterized in that, the air inlet of valve body with connect be provided with the filter equipment who is used for filtering gaseous between the intake nozzle of air inlet, filter equipment includes the filter core, the intake nozzle is provided with and is used for holding the recess of filter core, the one end of filter core with the tip of air inlet is contradicted, the other end pass through elastic element with the tank bottom of recess is contradicted.

2. The filtered air relief valve of claim 1, wherein the air inlet is a stepped bore with a small diameter at an inner end and a large diameter at an outer end.

3. The filtered air relief valve of claim 2, wherein the resilient element is a wave washer or a compression spring.

4. The filtered air relief valve of claim 1 or 3, wherein the filter cartridge has an upper end cap with vent holes facing the air inlet and a lower end cap facing the air inlet nozzle.

5. The filtered air relief valve of claim 4, wherein the lower end cap is notched with radially extending grooves.

6. The filtered air relief valve of claim 5, wherein the grooves are cross-shaped.

7. The filtered air relief valve of claim 6, wherein a sealing ring is disposed between the upper end cap and the end of the air inlet.

8. The filtered air relief valve of claim 7, wherein the seal ring is bonded to an end of the upper end cap.

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