CN221097660U

CN221097660U - Multifunctional air valve

Info

Publication number: CN221097660U
Application number: CN202322854782.2U
Authority: CN
Inventors: 田大勋; 唐伟; 陈健强
Original assignee: Zigong Nuoli Special Compressor Co ltd
Current assignee: Zigong Nuoli Special Compressor Co ltd
Priority date: 2023-10-24
Filing date: 2023-10-24
Publication date: 2024-06-07
Anticipated expiration: 2033-10-24

Abstract

The application provides a multifunctional air valve, comprising: the device comprises a shell, a pushing disc and a push rod assembly. The air vent has been seted up to casing week side, and a plurality of first through-holes have been seted up perpendicularly to its bottom plate, and the bottom plate below is equipped with the limiting plate, and it has seted up the second through-hole, and the second through-hole staggers each other with first through-hole, is equipped with the valve block between bottom plate and the limiting plate, and it has seted up the third through-hole with second through-hole one-to-one, is equipped with first spring before valve block and the limiting plate. The push plate is arranged inside the shell, a push rod is arranged at the bottom of the push plate, the push rod penetrates through the bottom plate, and a second spring is arranged between the push plate and the bottom plate. The ejector rod assembly comprises an air bag shell, a diaphragm is arranged in the air bag shell, a pipe joint is arranged at the top of the air bag shell, an ejector rod is arranged at the bottom of the air bag shell in a penetrating mode and used for pushing the push disc downwards to move in the direction perpendicular to the valve plate, and the bottom of the ejector rod is connected with the bottom face of the diaphragm. The valve plate can effectively slow down the abrasion of the valve plate, can be used for controlling air intake and air exhaust, and has various control modes.

Description

Multifunctional air valve

Technical Field

The utility model belongs to the technical field of compressor valves, and particularly relates to a multifunctional air valve.

Background

The air valve is one of important parts of the compressor, and the quality directly influences the operation reliability, the exhaust gas quantity and the power consumption of the compressor. The air valves of the machine all adopt planar annular valve structures, and the action principle is to utilize the timely automatic start and stop of the air pressure difference when the piston moves up and down, thereby controlling the air entering the air cylinder or exhausting the air from the air cylinder. The existing air valve is usually directly driven by a motor to push the valve plate to move, so that the air valve is opened and closed, and although the air valve can be rapidly switched, the abrasion speed of the air valve is increased due to the fact that the moving speed of the valve plate is higher, the valve plate needs to be frequently replaced, the air valve is single in function and can only work under the driving of the motor, and automatic opening and closing cannot be realized according to the change of pressure difference in the air cylinder.

Disclosure of utility model

In order to solve the defects in the prior art, the utility model provides the multifunctional air valve which can effectively slow down the abrasion of a valve plate, can be used for controlling air intake and air exhaust and has various control modes.

In order to achieve the object of the utility model, the following scheme is adopted:

A multi-function air valve comprising: the device comprises a shell, a pushing disc and a push rod assembly.

The air vent is offered to casing week side, and a plurality of first through-holes have been seted up perpendicularly to its bottom plate, and the casing passes through the cylinder of bottom plate and compressor and links to each other, and the bottom plate below is equipped with the limiting plate, and a plurality of second through-holes have been seted up perpendicularly to it, and the second through-hole staggers each other with first through-hole, is equipped with the valve block between bottom plate and the limiting plate, and the third through-hole with second through-hole one-to-one has been seted up to it is equipped with first spring before valve block and the limiting plate for make the valve block hug closely the bottom plate.

The push plate is arranged inside the shell, the bottom of the push plate is provided with a push rod, the push rod penetrates through the bottom plate, a second spring is arranged between the push plate and the bottom plate, and when the second spring is in a natural state, the bottom surface of the push rod is higher than the bottom surface of the bottom plate.

The ejector rod assembly comprises an air bag shell, a diaphragm is arranged in the air bag shell, a pipe joint is arranged at the top of the air bag shell, an ejector rod is arranged at the bottom of the air bag shell in a penetrating mode and used for pushing the push disc downwards to move in the direction perpendicular to the valve plate, and the bottom of the ejector rod is connected with the bottom face of the diaphragm.

The utility model has the beneficial effects that:

1. According to the scheme, the ejector rod pushes the pushing disc in a gas pressurizing mode, the pushing disc is utilized to push the valve plate, the pushing process is mild, the impact is small, the abrasion of the edge of the valve plate can be effectively reduced, and the service life of the air valve is prolonged.

2. The scheme can realize the active control of the opening and closing of the air valve in a mode of controlling air pressure, can realize automatic opening and closing by utilizing the pressure difference in the compression cylinder, has various control modes and can be more perfect.

Drawings

The drawings described herein are for illustration of selected embodiments only and not all possible implementations, and are not intended to limit the scope of the utility model.

Figure 1 shows a cross-sectional view of the overall structure of the present application.

Fig. 2 shows a schematic structural view of the housing of the present application.

Figure 3 shows a cross-sectional view of the ejector pin assembly of the present application.

The marks in the figure: the air bag valve comprises a shell-1, an air vent-11, a bottom plate-12, a first through hole-121, a limiting plate-2, a second through hole-21, a valve plate-3, a third through hole-31, a first spring-32, a push disc-4, a push rod-41, a second spring-42, a push rod component-5, an air bag shell-51, a diaphragm-52, a pipe joint-53, a push rod-54, a disc-55 and a third spring-56.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the following detailed description of the embodiments of the present utility model will be given with reference to the accompanying drawings, but the described embodiments of the present utility model are some, but not all embodiments of the present utility model.

As shown in fig. 1, a multifunctional gas valve includes: a shell 1, a push disc 4 and a push rod assembly 5.

Specifically, as shown in fig. 1 and 2, the peripheral side of the casing 1 is provided with a vent hole 11, the bottom plate 12 of the casing 1 is vertically provided with a plurality of first through holes 121, the casing 1 is connected with a cylinder of the compressor through the bottom plate 12, the lower part of the bottom plate 12 is provided with a limiting plate 2, a plurality of second through holes 21 are vertically provided, the second through holes 21 and the first through holes 121 are staggered, a valve plate 3 is arranged between the bottom plate 12 and the limiting plate 2, third through holes 31 corresponding to the second through holes 21 one by one are provided, and a first spring 32 is arranged before the valve plate 3 and the limiting plate 2 and used for enabling the valve plate 3 to be clung to the bottom plate 12, so that the air valve is in a normally closed state.

Specifically, as shown in fig. 1, the push disc 4 is disposed inside the casing 1, a push rod 41 is disposed at the bottom of the push disc 4, the push rod 41 passes through the bottom plate 12, a second spring 42 is disposed between the push disc 4 and the bottom plate 12, and when the second spring 42 is in a natural state, the bottom surface of the push rod 41 is higher than the bottom surface of the bottom plate 12, so as to meet the requirement that the valve plate 3 is tightly attached to the bottom plate 12.

Specifically, as shown in fig. 1 and 3, the ejector rod assembly 5 includes an air bag shell 51, a membrane 52 is disposed in the air bag shell, a pipe joint 53 is disposed at the top of the air bag shell 51, an ejector rod 54 is disposed at the bottom of the air bag shell 51 in a penetrating manner, and is used for pushing the push plate 4 downward to move in a direction perpendicular to the valve plate 3, the bottom of the ejector rod 54 is connected with the bottom surface of the membrane 52, when the air bag shell 51 is pressurized by the pipe joint 53, the membrane 52 moves toward the bottom of the air bag shell 51, so as to push the ejector rod 54 downward, and when air in the air bag shell 51 is pumped out by the pipe joint 53, the membrane 52 drives the ejector rod 54 to move upward.

When the opening and closing of the air valve are required to be actively controlled, only the internal pressure of the air bag shell 51 is required to be controlled, the push plate 4 is pushed downwards through the push rod 54, then the valve plate 3 is separated from the bottom plate 12 by the push rod 41, at the moment, air can enter from the vent hole 11, then enters into a spacing space between the bottom plate 12 and the valve plate 3 through the first through hole 121, finally enters into a cylinder of the compressor through the third through hole 31 and the second through hole 21, and the state is suitable for not only air intake, but also air exhaust; in the process, the ejector rod 54 pushes the push disc 4 in a gas pressurizing mode, and then the push disc 4 is used for pushing the valve plate 3, so that the pushing process is mild, the impact is small, the abrasion of the edge of the valve plate 3 can be effectively reduced, and the service life of the air valve is prolonged. When the active control air valve is required to be closed, only the ejector rod needs to be moved upwards, the push disc 4 automatically rises under the action of the second spring 42, and the valve plate 3 is automatically attached to the bottom plate 12 under the action of the first spring 32, so that a connecting channel between the first through hole 121 and the third through hole 31 is cut off. The present solution can also utilize the pressure difference in the compressor cylinder to realize automatic opening and closing, and install the air valve in the air inlet pipe of the compressor cylinder, when the air cylinder is in the air inlet process, because the internal pressure is smaller, the second through hole 21 will generate suction force to the valve plate 3, so that the valve plate 3 moves downwards, and the air valve is automatically opened, thereby separating the valve plate 3 from the bottom plate 12, and the air flow can smoothly enter the third through hole 31 through the first through hole 121. When the compression is carried out, the upward pressure is generated on the valve plate 3 due to the fact that the gas in the cylinder is compressed and the pressure is increased, and meanwhile, the valve plate 3 is automatically attached to the bottom plate 12 under the action of the first spring 32, and then the gas valve is automatically closed. The scheme can realize the active control of the opening and closing of the air valve in a mode of controlling air pressure, can also realize automatic opening and closing by utilizing the pressure difference in the compression cylinder, and has various control modes.

Preferably, the first through hole 121, the third through hole 31 and the second through hole 21 are all arranged in a plurality along the circumferential array, so that the air intake and exhaust are quicker, and the third through hole 31 is staggered from the first through hole 121.

Preferably, a plurality of push rods 41 are arranged at the bottom of the push disc 4 along the circumferential array of the valve plate 3, so that the thrust force on each part of the valve plate 3 is balanced, and the valve plate 3 is prevented from tilting.

Preferably, as shown in fig. 1, the limiting plate 2 is connected to the bottom of the casing 1 through a bolt, so as to be convenient to disassemble and assemble from the lower part of the air valve, and thus the valve plate 3 is convenient to replace.

Preferably, as shown in fig. 3, the top surface of the ejector pin 54 is provided with a disk 55 to increase the contact area with the diaphragm 52, thereby preventing the diaphragm 52 from being damaged.

Preferably, as shown in fig. 3, a third spring 56 is arranged between the disc 55 and the bottom surface of the air bag shell 51, and is sleeved outside the ejector rod 54, so as to jack up the ejector rod 54 upwards, and when the air bag shell 51 stops being pressurized, the ejector rod 54 can be automatically jacked up by the third spring 56.

The foregoing description of the preferred embodiments of the utility model is merely exemplary and is not intended to be exhaustive or limiting of the utility model. It will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model.

Claims

1. A multifunctional gas valve, comprising:

The shell (1) is provided with vent holes (11) at the periphery, a plurality of first through holes (121) are vertically formed in a bottom plate (12) of the shell (1), the shell (1) is connected with a cylinder of a compressor through the bottom plate (12), a limiting plate (2) is arranged below the bottom plate (12), a plurality of second through holes (21) are vertically formed in the shell, the second through holes (21) are staggered with the first through holes (121), a valve plate (3) is arranged between the bottom plate (12) and the limiting plate (2), third through holes (31) which are in one-to-one correspondence with the second through holes (21) are formed in the shell, and a first spring (32) is arranged in front of the valve plate (3) and the limiting plate (2) and used for enabling the valve plate (3) to be tightly attached to the bottom plate (12);

The pushing disc (4) is arranged in the shell (1), a push rod (41) is arranged at the bottom of the shell, the push rod (41) penetrates through the bottom plate (12), a second spring (42) is arranged between the pushing disc (4) and the bottom plate (12), and when the second spring (42) is in a natural state, the bottom surface of the push rod (41) is higher than the bottom surface of the bottom plate (12);

The ejector rod assembly (5) comprises an air bag shell (51), a diaphragm (52) is arranged in the air bag shell, a pipe joint (53) is arranged at the top of the air bag shell (51), an ejector rod (54) is arranged at the bottom of the air bag shell (51) in a penetrating mode and used for pushing the push disc (4) downwards to move in the direction perpendicular to the valve plate (3), and the bottom of the ejector rod (54) is connected with the bottom face of the diaphragm (52).

2. A multifunctional gas valve according to claim 1, characterized in that the first through hole (121), the third through hole (31) and the second through hole (21) are all provided in plurality along the circumferential array, and the third through holes (31) are all staggered with the first through hole (121).

3. A multifunctional air valve according to claim 1, characterized in that the bottom of the push disc (4) is provided with a plurality of push rods (41) along the circumferential array of the valve plates (3).

4. A multifunctional air valve according to claim 1, characterized in that the limiting plate (2) is connected to the bottom of the housing (1) by means of bolts.

5. A multifunctional air valve according to claim 1, characterized in that the top surface of the ejector rod (54) is provided with a disc (55).

6. A multifunctional air valve according to claim 5, characterized in that a third spring (56) is arranged between the disc (55) and the bottom surface of the air bag shell (51), and is sleeved outside the ejector rod (54) for lifting the ejector rod (54) upwards.