CN216691429U

CN216691429U - Reversing valve for diaphragm pump

Info

Publication number: CN216691429U
Application number: CN202123352649.4U
Authority: CN
Inventors: 刘浩林
Original assignee: Shanghai Huansheng Industrial Co ltd
Current assignee: Shanghai Huansheng Industrial Co ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-06-07
Anticipated expiration: 2031-12-29

Abstract

The utility model provides a reversing valve for a diaphragm pump, which comprises an integrated valve sleeve, wherein a plurality of sealing units are arranged in the integrated valve sleeve, and are all sleeved and connected with the outer part of a valve core; the sealing performance is improved, and the energy consumption is low; working frequency is increased under high air pressure; work is done stably at low speed under low pressure.

Description

Reversing valve for diaphragm pump

Technical Field

The utility model relates to the technical field of pneumatic hydraulic pressure, in particular to a reversing valve for a diaphragm pump.

Background

The existing pneumatic diaphragm pump for coal mines comprises diaphragm chambers which are bilaterally symmetrical, a pump body which is positioned between the left and the right diaphragm chambers, a mandrel which is positioned in the pump body and is provided with a mandrel sleeve and used for connecting the two diaphragm chambers in the middle of the two diaphragm chambers, a reversing valve and other mechanisms, wherein the mandrel is provided with an axial channel for communicating the two diaphragm chambers.

Because the environment condition is bad, the discharge medium is sewage, and the like, the following disadvantages exist: the action is not flexible and the phenomenon of clamping stagnation exists; the reversing valve has dead points, and when the valve core of the reversing valve is just at the dead point position, the reversing valve cannot be started normally; the poor lubricity of the valve core leads to increased gas consumption and the like. And split type structural design, the installation is dismantled inconveniently, and the leakproofness is bad, and the loss is big under the high atmospheric pressure, and the switching-over working frequency is low, can not work under the low atmospheric pressure.

SUMMERY OF THE UTILITY MODEL

The utility model provides a reversing valve for a diaphragm pump, aiming at solving the technical problems of inconvenient installation and disassembly, poor sealing property, large loss under high air pressure, low reversing acting frequency and incapability of working under low air pressure due to a split type structural design.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a switching-over valve for diaphragm pump, includes the integral type valve barrel, the inside of integral type valve barrel is equipped with a plurality of sealed units, and is a plurality of the outside of connecting in the case is all established to sealed unit cover.

Furthermore, a plurality of mounting grooves are formed in the outer portion of the integrated valve sleeve, and a plurality of airflow inlets and outlets are formed between the mounting grooves and in the middle of the integrated valve sleeve.

Furthermore, the sealing unit comprises a sealing ring, the outer side of the sealing ring is arranged on the inner side of the integrated valve sleeve, and an O-shaped ring is embedded in the inner side of the sealing ring.

Furthermore, a cavity is formed in the middle of the valve element, one end of the cavity is arranged in a conical shape, a plurality of air holes are formed in the periphery of the middle of the cavity respectively, the air holes are perpendicular to the cavity, and a plurality of annular grooves are formed in the outer portion of the valve element.

Furthermore, the integrated valve sleeve and the sealing ring are in interference fit.

Furthermore, the inner side of the sealing ring is in a closed-up shape.

Compared with the prior art, the utility model has the beneficial effects that:

1. the integrated structure design is adopted, and the installation is rapid and convenient;

2. the sealing performance is improved, and the energy consumption is low;

3. working frequency is increased under high air pressure;

4. work is done stably at low speed under low pressure.

Drawings

FIG. 1 is a front view of the external structure of the present invention;

FIG. 2 is a schematic diagram of the external structure of the present invention;

FIG. 3 is a sectional view of the internal structure of the present invention;

fig. 4 is a schematic view of an open internal structure of the integrated valve housing and sealing unit of the present invention;

fig. 5 is a sectional schematic view of the valve core structure of the present invention.

In the figure: 1. an integral valve housing; 11. mounting grooves; 12. an airflow inlet and outlet; 2. a sealing unit; 21. a seal ring; 22. an O-shaped ring; 3. a valve core; 31. a cavity; 32. air holes; 33. an annular groove.

Detailed Description

In order to facilitate an understanding of the utility model, the utility model will now be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the utility model are shown, but which may be embodied in different forms and not limited to the embodiments described herein, but which are provided so as to provide a more thorough and complete disclosure of the utility model.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive 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, and the knowledge of the terms used herein in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

In an embodiment, please refer to fig. 1 to 3 again, a reversing valve for a diaphragm pump includes an integrated valve housing 1, a plurality of sealing units 2 are disposed inside the integrated valve housing 1, and the sealing units 2 are all sleeved outside a valve core 3.

In the embodiment, please refer to fig. 4 again, a plurality of mounting grooves 11 are formed in the exterior of the integrated valve sleeve 1, a plurality of airflow inlets and outlets 12 are formed between the mounting grooves 11 and in the middle of the integrated valve sleeve 1, and in the design, the cylindricity and the straightness of an inner hole are improved through the integrated design of the valve sleeve, so that the reciprocating resistance of the valve core is reduced, and the energy consumption is reduced.

In an embodiment, please refer to fig. 4 again, the sealing unit 2 includes a sealing ring 21, an outer side of the sealing ring 21 is disposed on an inner side of the integrated valve sleeve 1, and an O-ring 22 is embedded on an inner side of the sealing ring 21.

In the embodiment, please refer to fig. 5, a cavity 31 is formed in the middle of the valve core 3, one end of the cavity 31 is disposed in a conical shape, a plurality of air holes 32 are respectively formed around the middle of the cavity 31, the plurality of air holes 32 are perpendicular to the cavity 31, and a plurality of annular grooves 33 are formed outside the valve core 3.

In the embodiment, please refer to fig. 1-4, the integrated valve sleeve 1 and the sealing ring 21 are in interference fit, which is designed to take account of the air tightness and stability of the valve body.

In the embodiment, please refer to fig. 3-4, the inner side of the sealing ring 21 is disposed in a closed shape, which is designed to improve the air tightness between the O-ring and the valve core and reduce the energy consumption.

Although the present invention has been described in connection with the accompanying drawings, it is to be understood that the utility model is not limited to the precise embodiments disclosed, and that various changes, modifications, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. A reversing valve for a diaphragm pump, characterized by: including integral type valve barrel (1), the inside of integral type valve barrel (1) is equipped with a plurality of sealed units (2), and is a plurality of sealed unit (2) all overlap and establish the outside of connecting in case (3).

2. A reversing valve for a diaphragm pump according to claim 1, wherein: a plurality of mounting grooves (11) are formed in the outer portion of the integrated valve sleeve (1), and a plurality of airflow inlets and outlets (12) are formed between the mounting grooves (11) and in the middle of the integrated valve sleeve (1).

3. A reversing valve for a diaphragm pump according to claim 1, wherein: the sealing unit (2) comprises a sealing ring (21), the outer side of the sealing ring (21) is arranged on the inner side of the integrated valve sleeve (1), and an O-shaped ring (22) is embedded on the inner side of the sealing ring (21).

4. A reversing valve for a diaphragm pump according to claim 1, wherein: the valve core is characterized in that a cavity (31) is formed in the middle of the valve core (3), one end of the cavity (31) is arranged in a conical shape, a plurality of air holes (32) are formed in the periphery of the middle of the cavity (31) respectively, the air holes (32) and the cavity (31) are arranged perpendicularly, and a plurality of annular grooves (33) are formed in the outer portion of the valve core (3).

5. A reversing valve for a diaphragm pump according to claim 3, wherein: the integrated valve sleeve (1) and the sealing ring (21) are in interference fit.

6. A reversing valve for a diaphragm pump according to claim 3, characterized in that: the inner side of the sealing ring (21) is in a closed-up shape.