Assembly type valve group

Abstract

The utility model provides an assembly type valve group, which belongs to the technical field of air valves and comprises an air valve component mounted on a distributor, the air valve component comprises a main cavity, an air inlet and an air outlet are arranged on the main cavity, a connecting channel is arranged at the upper end of the air inlet, a lining is arranged in the main cavity, and openings are arranged at the upper end and the lower end of the lining. According to the utility model, the simple air inlet loop is additionally arranged in the cavity, on the premise that the air inlet effect is not influenced, the accuracy of controlling the air inlet amount of the air is improved, the waste of the air caused by excessive air is avoided, and the service life of the air inlet is prolonged. And the cost is reduced.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of air valves, and specifically relates to an assembled valve group. Background Technique

[0002] An air valve is a component used to control the inlet and outlet of gas. The distributor in the air valve can control the proportion of fluid gas volume, ensure that the air pressure is within a balanced range, and relieve too high or too low air pressure, avoiding unstable phenomena that are likely to occur during use and ensuring the safety of use. Good air valve materials should have characteristics such as high strength, good toughness, wear resistance, and corrosion resistance.

[0003] During the process of the air valve controlling the gas flow, due to the action of the gas pressure itself, the flow rate is very fast, so the residence time in the valve cavity is very short. Therefore, to control the gas volume, it is generally less than the actual gas volume passing through the valve, thus unable to achieve the purpose of precise control. Over time, excessive gas will lead to a large waste of resources and increase costs. Content of the Utility Model

[0004] The technical solution of the utility model provides a solution significantly different from the prior art for the technical problem that the prior art solution is too single. Specifically, the utility model mainly provides an assembled valve group to solve the technical problem proposed in the above background technique that due to the short time for gas to flow in the valve cavity, precise control cannot be achieved, resulting in waste of resources.

[0005] The technical solution adopted by the utility model to solve the above technical problems is as follows:

[0006] An assembled valve group includes an air valve assembly installed on a distributor. The air valve assembly includes a main cavity. An air inlet and an air outlet are provided on the main cavity. A connection channel is provided at the upper end of the air inlet. A lining is provided in the main cavity. Openings are provided at both the upper and lower ends of the lining, and the lining is communicated with the connection channel. The air inlet circuit formed by the outer wall of the lining and the inner wall of the main cavity is communicated with the air outlet.

[0007] Furthermore, a shut-off valve is installed on the outer wall of the main cavity through bolts, and the valve plate of the shut-off valve is located at the connection position between the upper end of the air inlet and the connection channel.

[0008] Furthermore, a proportional valve is also installed on the outer wall of the main cavity through bolts, and the valve plate of the proportional valve is located at the upper end opening position of the lining.

[0009] Furthermore, a cover plate is installed on the upper side of the main cavity through bolts, and a sealing ring is provided between the cover plate and the main cavity.

[0010] Furthermore, an annular groove is provided at the upper edge position of the main cavity, and the sealing ring is embedded in the annular groove.

[0011] Further, a pressure measurement port is provided on one side of the outer wall of the main cavity.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] By providing the main cavity, the air inlet, the connecting channel, the air outlet, the cover plate and the inner lining, the present utility model realizes adding a simple air inlet circuit in the main cavity. Without affecting the air inlet effect, through the mutual cooperation between the shut-off valve and the proportional valve, the accuracy of controlling the air inlet volume of the gas is improved, overage is avoided, waste of the gas is reduced, the cost is lowered, and the structure is simple and convenient for installation, having certain practical value.

[0014] The following will explain and illustrate the present utility model in detail with reference to the drawings and specific embodiments. Description of the Drawings

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is an exploded schematic diagram of the gas valve assembly of the present utility model;

[0017] Figure 3 is a schematic diagram of the connecting channel of the main cavity of the present utility model;

[0018] Figure 4 is a schematic diagram of the inner lining structure of the main cavity of the present utility model.

[0019] In the figure: 1. Gas valve assembly; 11. Main cavity; 111. Air inlet; 112. Connecting channel; 113. Air outlet; 114. Annular groove; 12. Shut-off valve; 13. Proportional valve; 14. Sealing ring; 15. Cover plate; 16. Pressure measurement port; 17. Inner lining; 171. Opening. Detailed Embodiments

[0020] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present utility model are given in the drawings, but the present utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the present utility model more thorough and comprehensive.

[0021] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there can be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this utility model belongs. The terms used in the description of the present utility model in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0023] Please refer specifically to the appended Figures 1-4 , an assembled valve group, including a gas valve assembly 1 installed on a dispenser. The gas valve assembly 1 includes a main cavity 11. An air inlet 111 and an air outlet 113 are provided on the main cavity 11. A connection channel 112 is provided at the upper end of the air inlet 111. A lining 17 is provided in the main cavity 11. Openings 171 are provided at both the upper and lower ends of the lining 17, and the lining 17 communicates with the connection channel 112. The intake circuit formed by the outer wall of the lining 17 and the inner wall of the main cavity 11 communicates with the air outlet 113.

[0024] Through the above structure, a simple intake circuit is added in the cavity. Without affecting the intake effect, the accuracy of controlling the gas intake volume is improved, excessive gas is avoided, gas waste is reduced, the cost is lowered, and the structure is simple and convenient for installation, having a certain practical value.

[0025] The specific operation is as follows: Open the shut-off valve 12. Then, the valve piece on the shut-off valve 12 leaves the connection position between the upper end of the air inlet 111 and the connection channel 112. Then, gas can enter from the air inlet 111, pass through the connection channel 112 and enter the lining 17. Subsequently, through the action of the proportional valve 13, the opening 171 at the upper end of the lining 17 is opened. Then, the gas passes through the opening 171 at the upper end of the lining 17 and enters the intake circuit formed by the outer wall of the lining 17 and the inner wall of the main cavity 11. Subsequently, it enters the dispenser through the air outlet 113.

[0026] Please refer specifically to the appended Figure 2 and the appended Figure 4, a shut-off valve 12 is installed on the outer wall of the main cavity 11 by bolts, and the valve disc of the shut-off valve 12 is located at the connection position between the upper end of the air inlet 111 and the connection channel 112. By means of the shut-off valve 12, the on-off control of the connection position between the upper end of the air inlet 111 and the connection channel 112 is realized. A proportional valve 13 is also installed on the outer wall of the main cavity 11 by bolts, and the valve disc of the proportional valve 13 is located at the upper end opening 171 of the inner liner 17. By means of the proportional valve 13, the on-off control of the upper end opening 171 of the inner liner 17 is realized to adjust the air intake. A cover plate 15 is installed on the upper side of the main cavity 11 by bolts, and a sealing ring 14 is arranged between the cover plate 15 and the main cavity 11. By means of the sealing ring 14, the sealing performance between the cover plate 15 and the main cavity 11 is improved to avoid air leakage. An annular groove 114 is arranged at the upper edge position of the main cavity 11, and the sealing ring 14 is embedded in the annular groove 114. By means of the annular groove 114, a space is provided for the placement of the sealing ring 14. A pressure measuring port 16 is arranged on one side of the outer wall of the main cavity 11. By means of the pressure measuring port 16, the air pressure in the main cavity 11 is detected.

[0027] The above has made an exemplary description of the present invention in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above methods. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. An assembled valve assembly, comprising a gas valve assembly (1) mounted on a distributor, the gas valve assembly (1) comprising a main cavity (11), the main cavity (11) being provided with an air inlet (111) and an air outlet (113), characterized in that: A connecting channel (112) is provided at the upper end of the air inlet (111), an inner liner (17) is provided in the main cavity (11), openings (171) are provided at both the upper and lower ends of the inner liner (17), and the inner liner (17) and the connecting channel (112) are in communication, and an air inlet circuit formed by an outer wall of the inner liner (17) and an inner wall of the main cavity (11) is in communication with the air outlet (113).

2. The assembled valve group according to claim 1, characterized in that: A shut-off valve (12) is mounted on the outer wall of the main cavity (11) by means of bolts, and a valve plate of the shut-off valve (12) is located at a connection position between the upper end of the air inlet (111) and the connecting channel (112).

3. The assembled valve group according to claim 2, characterized in that: A proportional valve (13) is also mounted on the outer wall of the main cavity (11) by means of bolts, and a valve plate of the proportional valve (13) is located at the upper opening (171) of the liner (17).

4. The assembled valve group according to claim 3, characterized in that: A cover plate (15) is mounted on the upper side of the main cavity (11) via bolts, and a sealing ring (14) is provided between the cover plate (15) and the main cavity (11).

5. The assembled valve group according to claim 4, characterized in that: An annular groove (114) is provided at the upper edge of the main cavity (11), and the sealing ring (14) is embedded in the annular groove (114).

6. The assembled valve group according to claim 5, characterized in that: A pressure measuring port (16) is provided on one side of the outer wall of the main cavity (11).

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