Air valve chamber assembly adopting novel structure

Abstract

The utility model discloses an air valve chamber assembly adopting a novel structure. The air valve chamber assembly comprises a valve body, a pump chamber, an air chamber and a silencer, the valve body comprises an exhaust cavity and an exhaust hole. The two air chambers are symmetrical to each other and share one partition plate with the valve body for separation. And each air chamber is provided with two air vents. And a connecting port is formed in the partition plate between the two air chambers. Compared with the prior art, the exhaust cavity is communicated with the air chamber through the air vent, so that the accommodating space of exhausted air is increased, the flow speed of the exhausted air is effectively slowed down, the exhaust resistance is reduced, meanwhile, the heat exchange contact area is increased, the freezing risk is effectively reduced, and therefore the positive influence on the flow is caused. Through the arrangement of the air vent and the connecting port, the internal space of the air valve chamber is utilized to the maximum extent, the requirement of the market for miniaturization of equipment is met, meanwhile, the exhaust problem of existing equipment is solved, and the flow efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of pneumatic diaphragm pumps, in particular to an air valve chamber component with a new structure. Background Art

[0002] Diaphragm pumps, also known as control pumps, are the main type of actuators. They receive control signals output by the control control unit and use power operation to change the fluid flow rate. They are a new type of conveying machinery that can convey various corrosive liquids, liquids with particles, high viscosity, volatile, flammable, and highly toxic liquids. Diaphragm pumps are divided into pneumatic diaphragm pumps, electric diaphragm pumps, and hydraulic diaphragm pumps. Among them, pneumatic diaphragm pumps are positive displacement pumps that use compressed gas as power and cause volume changes through reciprocating deformation of the diaphragm. They rely on the interaction of a double reversing valve and an auxiliary rod, or the interaction of a single reversing valve and a connecting rod sliding sleeve to drive the elastic diaphragm to move back and forth, and the cavities on both sides expand and contract alternately, ultimately achieving continuous suction and discharge of liquids.

[0003] For example, a multi-outlet diversion pneumatic diaphragm pump disclosed in a Chinese utility model patent with an authorization announcement date of 2020.12.29 and an authorization announcement number of CN212250416U includes a pneumatic diaphragm pump main pipeline, the pneumatic diaphragm pump main pipeline is a U-shaped frame structure, and spherical check valves are diagonally distributed on the four sides of the inside of the pneumatic diaphragm pump main pipeline, an air distribution valve is installed above the middle of the pneumatic diaphragm pump main pipeline, and a diaphragm diaphragm chamber is connected below the air distribution valve, and the diaphragm diaphragm chamber is distributed in the middle of both sides of the pneumatic diaphragm pump main pipeline, a material conveying inlet is connected to the middle of the top of the pneumatic diaphragm pump main pipeline, and a material conveying outlet is connected to the front side of the middle of the lower part of the pneumatic diaphragm pump main pipeline, the top and sides of the lower point of the pneumatic diaphragm pump main pipeline are connected to material auxiliary outlets, and the height of the material auxiliary outlet on the side of the pneumatic diaphragm pump main pipeline is lower than the bottom height of the spherical check valve.

[0004] Since pneumatic diaphragm pumps use gas pressure as power and need to discharge high-pressure gas, a muffler needs to be installed at the outlet to reduce the noise and slow down the high-pressure and high-speed gas. However, in actual use, due to the increasing demand for product miniaturization, the valve chamber structure in the pump is constantly optimized, the volume of the air chamber accounts for a small proportion, and the resistance during exhaust is large, resulting in the gas being discharged directly from the exhaust port without being decelerated. The exhaust gas flow rate is further increased. On the one hand, ordinary mufflers are difficult to meet the noise reduction requirements. On the other hand, the flow of high-speed gas leads to heat absorption, making the exhaust structure very prone to icing, making the product difficult to use in winter or low temperature scenarios. Summary of the invention

[0005] In view of this, the utility model provides a gas valve chamber component adopting a new structure to solve the above technical problems.

[0006] A valve chamber assembly with a new structure, which includes a valve body, a pump chamber provided on the valve body, two air chambers provided on the valve body, and a muffler connected to the air chamber. The valve body includes an exhaust cavity and an exhaust hole communicating with the exhaust cavity. The exhaust cavity communicates with the inside of the valve chamber. The exhaust hole is a through hole connecting the exhaust cavity with the outside of the valve body and is used to connect the muffler. The valve chamber is a rectangular chamber provided on the valve body, with the opening direction perpendicular to the radial direction of the valve body and located on the axis of symmetry of the valve body. The two air chambers are respectively located on the left and right sides of the valve body in terms of structure, and the opening directions are towards the directions away from each other. The two air chambers are symmetrical to each other and are separated from the valve body by sharing a partition. Each air chamber is provided with two ventilation ports. The ventilation ports are provided on the side wall between the air chamber and the exhaust cavity. A connection port is provided on the partition between the two air chambers.

[0007] Further, the valve body is integrally cylindrical, is an axisymmetric structure in the radial direction, is divided into two symmetrical structures in the radial direction, and a partition is provided at the separation for separation.

[0008] Further, the valve body also includes a connecting rod shaft hole provided at the axis center and two valve chamber gaskets provided at both ends of the valve body.

[0009] Further, the connecting rod shaft hole is located at the axis center of the valve body and is a through axial through hole.

[0010] Further, the exhaust cavity is located on one side of the connecting rod shaft hole 11, is spaced from the connecting rod shaft hole, and penetrates through both ends of the valve body in the axial direction.

[0011] Further, the connection between the exhaust cavity and the valve chamber is a tee structure, and the left and right sides are respectively communicated with the exhaust cavity through the movement of a slider.

[0012] Further, the exhaust cavity adopts an arc-shaped structure with a crescent cross-section. The connection between the exhaust cavity and the valve chamber is located at one end of the crescent, and the connection between the exhaust cavity and the exhaust hole is located at the other end.

[0013] Further, the muffler is inserted into the exhaust hole and fixed by means of threads or a buckle.

[0014] Compared with the prior art, the air valve chamber assembly with a new structure provided by the present utility model communicates the exhaust cavity with the air chamber by arranging the ventilation port, increasing the accommodation space for the discharged gas, effectively preventing the problem that when the gas is discharged from the valve chamber, due to insufficient volume, it is extruded from the exhaust hole, effectively slowing down the flow rate of the discharged gas, reducing the resistance during exhaust, and at the same time increasing the heat exchange contact area, effectively reducing the risk of icing, thereby having a positive impact on the flow rate. By arranging the ventilation port and the connection port, the internal space of the air valve chamber is utilized to the greatest extent, that is, it meets the market's demand for miniaturization of equipment, and at the same time solves the exhaust problem of existing equipment and improves the flow efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 FIG. is a schematic structural diagram of an air valve chamber assembly with a new structure provided by the present utility model.

[0016] Figure 2 is Figure 1 a partial structural schematic diagram of the air valve chamber assembly with a new structure of

[0017] Figure 3 is Figure 2 a side schematic diagram of a part of the structure of the air valve chamber assembly with a new structure of DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following further details the specific embodiments of the present utility model. It should be understood that the description of the embodiments of the present utility model herein does not limit the protection scope of the present utility model.

[0019] As Figures 1 to 3 shown, it is a schematic structural diagram of an air valve chamber assembly with a new structure provided by the present utility model. The air valve chamber assembly with a new structure includes a valve body 10, a pump chamber 20 arranged on the valve body 10, two air chambers 30 arranged on the valve body 10, and a muffler 40 connected to the air chamber 30. It can be imagined that the air valve chamber assembly with a new structure also includes some other functional modules such as membrane chambers arranged on both sides of the air valve chamber, movable connecting rods passing through the air valve chamber, etc., which are well-known technologies to those skilled in the art and will not be elaborated here one by one.

[0020] The valve body 10 is generally cylindrical, is an axisymmetric structure in the radial direction, and is divided into two symmetric structures in the radial direction, and a partition plate is arranged at the partition to separate them. The valve body 10 includes a connecting rod shaft hole 11 arranged at the axis, an exhaust cavity 12 located on one side of the connecting rod shaft hole 11, an exhaust hole 13 communicating with the exhaust cavity 12, and two air valve chamber gaskets 14 arranged at both ends of the valve body 10.

[0021] The connecting rod shaft hole 11 is located at the axis of the valve body 10 and is a through axial through-hole for inserting a connecting rod shaft, which is used to drive the diaphragms on the left and right sides of the valve body 10 to move. The above structures are all common in the technical field of diaphragm pumps and are not the main content of this application. Therefore, only a brief description is given again and no detailed description is provided in the specification and the accompanying drawings of the specification.

[0022] The exhaust cavity 12 is located on one side of the connecting rod shaft hole 11, is spaced from the connecting rod shaft hole 11, and axially penetrates both ends of the valve body 10. The exhaust cavity 12 communicates with the inside of the valve chamber 20. The communicating part is a tee structure, and the left and right sides are respectively communicated with the exhaust cavity 12 through the movement of a slider for exhausting. This principle should be common in the technical field of pneumatic diaphragm pumps and is not the main content of this application. Therefore, only a brief description is given again and no detailed description is provided in the specification and the accompanying drawings of the specification. The exhaust cavity 12 adopts an arc-shaped structure with a crescent cross-section. The connection between the exhaust cavity 12 and the valve chamber 20 is located at one end of the crescent, and the connection between the exhaust cavity 12 and the exhaust hole 13 is located at the other end, so that the high-speed gas rushing out of the valve chamber 20 enters the exhaust hole 13 after passing through the arc surface, achieving a certain degree of gas deceleration.

[0023] The exhaust hole 13 is a through-hole connecting the exhaust cavity 12 and the outside of the valve body 10 and is used to connect the silencer 40, so that the high-pressure air generated during the operation of the diaphragm pump can be discharged through the exhaust hole 13.

[0024] Two valve chamber gaskets 14 are fixed at both ends of the valve body 10 by fasteners to be used for separating and anti-sliding when connecting other components (such as diaphragms) of the diaphragm pump. The valve chamber gaskets 14 are provided with openings for communicating structures such as the connecting rod shaft hole 11 and the exhaust cavity 12 and having the same cross-section, which can be set according to the actual product structure and are not specifically limited here.

[0025] The valve chamber 20 is a rectangular chamber provided on the valve body 10, with the opening direction perpendicular to the radial direction of the valve body 10 and located on the axis of symmetry of the valve body 10, for placing components related to the pneumatic structure, such as the main air valve and the pilot air valve, as well as structures such as the cover plate covering the valve chamber 20. The corresponding pneumatic diaphragm pump structure should be an existing technology. For example, relevant content is mentioned in a pneumatic diaphragm pump valve chamber and a pneumatic diaphragm pump in Chinese Invention CN202211014241.2, and it is not the main content of this application. Therefore, only a brief description is given here.

[0026] The two air chambers 30 are respectively located on the left and right sides of the valve body 10 in terms of structure, and the opening directions are towards the directions away from each other. The air chamber 30 is a cavity formed between the side walls of structures such as the exhaust cavity 12 and the connecting rod shaft hole 11 and the side wall of the valve body 10, so the cavity shape is an irregular structure. The two air chambers 30 are symmetrical to each other and are separated from each other by sharing a partition with the valve body 10 to be divided into the left and right two air chambers 30.

[0027] Each air chamber 30 is provided with two ventilation ports 31. The ventilation ports 31 are arranged on the side wall between the air chamber 30 and the exhaust cavity 12 and are used to connect the air chamber 30 and the exhaust cavity 12. When exhausting, when high-pressure air quickly enters the exhaust cavity 12, part of the air directly enters the exhaust hole 13, and the other part of the air will enter each communication space in the air chamber 30 along the ventilation port 31. In this way, the resistance during exhaust is reduced, preventing a large amount of high-pressure air from surging into the exhaust cavity 12 in an instant. At the same time, the contact area between the compressed air and the air valve chamber is also increased, effectively slowing down the air flow rate, which is beneficial to rapid heat exchange, thereby slowing down the icing phenomenon. The two ventilation holes 31 are respectively located at the two tips of the crescent-shaped structure of the exhaust cavity 12, so that the gas in the exhaust cavity 12 can more conveniently enter the air chamber 30 when flowing along the arc-shaped structure of the exhaust cavity 12.

[0028] A connection port 32 is arranged on the partition between the two air chambers 30 and is used to connect the two air chambers 30 to facilitate air exchange and further reduce the air flow rate.

[0029] The silencer 40 is inserted into the exhaust hole 13 and can be fixed by means of threads or buckles, etc., so as to reduce the noise of the gas discharged from the pump body 10 and prevent the noise generated when the high-speed gas is ejected quickly from affecting the production operation.

[0030] Compared with the prior art, the air valve chamber assembly with a novel structure provided by the present utility model connects the exhaust cavity 12 and the air chamber 30 by arranging the ventilation port 31, increasing the accommodation space for the discharged gas, effectively preventing the problem that when the gas is discharged from the valve chamber 20, due to insufficient volume, it is squeezed out from the exhaust hole 13, effectively slowing down the flow rate of the discharged gas, reducing the resistance during exhaust, and at the same time increasing the heat exchange contact area, effectively reducing the risk of icing, thereby having a positive impact on the flow rate. By arranging the ventilation port 31 and the connection port 32, the internal space of the air valve chamber is utilized to the greatest extent, that is, it meets the market's demand for miniaturization of equipment, and at the same time solves the exhaust problem of existing equipment and improves the flow efficiency.

[0031] The above are only the preferred embodiments of the present utility model and are not intended to limit the protection scope of the present utility model. Any modifications, equivalent substitutions or improvements within the spirit of the present utility model are all covered within the scope of the claims of the present utility model.

Claims

1. A valve chamber assembly with a new structure, characterized in that: The gas valve chamber assembly with the new structure includes a valve body, a pump chamber arranged on the valve body, two gas chambers arranged on the valve body, and a muffler connected to the gas chambers. The valve body includes an exhaust cavity and an exhaust hole communicating with the exhaust cavity. The exhaust cavity communicates with the inside of the valve chamber. The exhaust hole is a through hole connecting the exhaust cavity with the outside of the valve body and is used to connect the muffler. The valve chamber is a rectangular chamber arranged on the valve body, with the opening direction perpendicular to the radial direction of the valve body and located on the axis of symmetry of the valve body. The two gas chambers are respectively located on the left and right sides of the valve body in terms of structure, and the opening directions are towards the directions away from each other. The two gas chambers are symmetrical to each other and are separated from the valve body by sharing a partition. Two ventilation ports are arranged on each gas chamber, and the ventilation ports are arranged on the side wall between the gas chamber and the exhaust cavity. A connection port is arranged on the partition between the two gas chambers.

2. The valve chamber assembly with a new structure as claimed in claim 1, characterized in that: The valve body is generally cylindrical, is an axisymmetric structure in the radial direction, is divided into two symmetrical structures in the radial direction, and a partition is arranged at the separation for separation.

3. The valve chamber assembly with a new structure as described in claim 2, characterized in that: The valve body also includes a connecting rod shaft hole arranged at the axis center and two gas valve chamber gaskets arranged at both ends of the valve body.

4. The valve chamber assembly with a new structure according to claim 3, characterized in that: The connecting rod shaft hole is located at the axis center of the valve body and is a through axial through hole.

5. The valve chamber assembly with a new structure as described in claim 3, characterized in that: The exhaust cavity is located on one side of the connecting rod shaft hole, is arranged at an interval from the connecting rod shaft hole, and penetrates through both ends of the valve body in the axial direction.

6. The valve chamber assembly with a new structure according to claim 5, characterized in that: The connection between the exhaust cavity and the valve chamber is a tee structure, and the left and right sides are respectively communicated with the exhaust cavity through the movement of a slider.

7. The valve chamber assembly with a new structure as described in claim 6, characterized in that: The exhaust cavity adopts an arc structure with a crescent cross-section. The connection between the exhaust cavity and the valve chamber is located at one end of the crescent, and the connection between the exhaust cavity and the exhaust hole is located at the other end.

8. The air valve chamber assembly with a new structure according to claim 1, characterized in that: The muffler is inserted into the exhaust hole and fixed by means of threads or a buckle.

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