TWM521137U - Vacuum retention type vacuum control valve - Google Patents

Description

Vacuum hold type vacuum control valve

The present invention relates to a vacuum holding type vacuum control valve, which mainly uses a vacuum generating electromagnetic valve and a broken vacuum electromagnetic valve to be connected to the body, and can use the internal circuit channel and the feedback channel of the body to make the body reach a vacuum effect. The input gas supply source can be stopped and continuously input, and the maximum vacuum of the body is maintained, so that the gas resources can be fully utilized and waste of resources can be reduced.

Generally, in the existing vacuum control valve products that are commercially available, the internal structure usually uses a positive pressure gas source to generate a negative pressure, so as to continuously input the gas, so that the vacuum control valve can be combined with the suction cup through the vacuum suction port to achieve adsorption of various materials. Commonly used with handling purposes, the required amount of pumping is small, the degree of vacuum is not high, and it is intermittent.

However, when the required pumping capacity is increased, it is necessary to replace the vacuum generating solenoid valve with a larger effective sectional area due to the effective sectional area of the vacuum generating solenoid valve, in order to achieve the flow demand, but the disadvantage is that the vacuum occurs electromagnetically. The larger the valve volume, the greater the cost of the product.

And the large vacuum control valve operates, the amount of gas consumed is bound to increase, although it still works intermittently, but the amount of use for long-term use is not to be underestimated, so it is urgent A solution that can improve the continued consumption of gas resources.

The vacuum control valve of the present invention is characterized in that the continuous supply of gas can be stopped when the vacuum is applied to the body, and the continuous supply is stopped, and the maximum vacuum of the body is maintained, so that the state of the sucked article can be maintained for a while. time; The body structure has a vacuum generating electromagnetic valve connected above the body, and a breaking vacuum electromagnetic valve is connected under the body, and the body is further provided with an input end, an output end, a vacuum suction end, and a loop channel, the loop The passage is connected with a two-position two-position valve disposed in the body, a vacuum generator, a vacuum pressure reducing valve and a check valve, and the two-position two-position valve has a valve seat; a gas supply source, Can enter at the input end, and exit through the loop channel until the output end; With the above structure, it is possible to control a larger vacuum generator, and more closely match the circuit passage inside the body, so that the supply pressure of the vacuum generator is almost non-destructive, which is equivalent to the supply pressure at the input end, so as to meet the demand for a larger pumping amount. Moreover, the conventional structure is effectively improved to maintain the maximum consumption of the gas supply amount of the maximum degree of vacuum. When the main body reaches the maximum degree of vacuum, the continuous supply of gas can be stopped, thereby achieving the use of the gas supply source.

[This creation]

1‧‧‧ Ontology

11‧‧‧ input

111‧‧‧ gas supply source

12‧‧‧ Output

13‧‧‧ Vacuum suction end

131‧‧‧ fluid

14‧‧‧Two two-position valve

141‧‧‧ valve seat

15‧‧‧Vacuum Generator

16‧‧‧Vacuum pressure reducing valve

17‧‧‧Check valve

18‧‧‧ loop channel

181‧‧‧Return channel

19‧‧‧Vacuum filter

2‧‧‧Vacuum generating solenoid valve

3‧‧‧Break vacuum solenoid valve

4‧‧‧Muffler

Figure 1 is a schematic diagram of the standby state of the present creation.

Figure 2 is a schematic diagram of the startup state of the creation.

Figure 3 is a schematic diagram of the startup state of the present creation.

Figure 4 is a schematic diagram of the vacuum holding state of the present creation.

Figure 5 is a schematic diagram of the vacuum holding state of the present creation.

Generally, according to the present creation, the best feasible embodiment, together with the detailed description of Figures 1 to 5, adds to the understanding of the creation; the creation is a vacuum-holding vacuum control valve, the body (1) The utility model has a vacuum generating electromagnetic valve (2) and a breaking vacuum electromagnetic valve (3), wherein the vacuum generating electromagnetic valve (2) is disposed above the body (1), and the breaking vacuum electromagnetic valve (3) is in position Provided below the body (1), the body (1) has an input end (11), an output end (12), a vacuum suction end (13), and a circuit passage (18) for vacuum suction A vacuum filter (19) is connected to the end (13), and the circuit passage (18) is connected with a two-position two-position valve (14), a vacuum generator (15), and a vacuum reduction provided in the body. a pressure valve (16) and a check valve (17), and the two-position two-position valve (14) is provided with a valve seat (141), the valve seat (141) is provided with a spring or can be replaced with a reset function The elastic member is not limited thereto, so that the valve seat (141) has a vertical displacement function; a feedback passage (181), a valve seat (141) connecting the two-position two-position valve (14) and a vacuum Pressure reducing valve (16) A gas supply source (111) can enter at the input end (11), exit through the loop passage (18) to the output end (12), and the output end (12) is provided with a noise reduction muffler (4) ). When the gas supply source (111) passes through the body (1), the check valve (17) is opened, and the fluid (131) sucked into the vacuum suction end (13) can pass through the feedback passage (181). Suction the valve seat (141) until the vacuum set by the vacuum pressure reducing valve (16), thereby closing the two-position two-position valve (14), allowing the input gas supply source (111) to be stopped, and maintaining the body (1) The maximum vacuum.

Please refer to FIG. 1 , which is standby state at this time, but it can be seen that the gas supply source ( 111 ) is mainly input to the vacuum generating electromagnetic valve from the input end ( 11 ) of the main body ( 1 ) via the internal passage ( 2), the vacuum generating solenoid valve (2) is input into the two-position two-position valve (14), thereby closing the input end (11) so that the gas does not flow into the vacuum generator (15), the vacuum The solenoid valve (2) is still in a normally closed design, which is in line with the general commercial design. It does not need to be changed, and it does not consume much of the gas input. It can be turned on, which has its convenience in practical applications.

Please refer to the second and second two-position valve (14) valve seat (141) when the gas supply source (111) is continuously input and the main body (1) is in the activated state. Will be pushed open, the thrust comes from the difference between the preset spring and the upper and lower ends of the valve seat (141) multiplied by the input pressure, the resulting force, so that the gas supply source (111) can enter the vacuum generator ( 15) generating a degree of vacuum by entrainment; when the degree of vacuum reaches a certain limit, a check valve (141) located below the vacuum generator (15) is opened, thereby allowing the body (1) The vacuum suction end (13) can suck the external fluid (131), where the fluid (131) is referred to as normal air, and is also sucked by the return passage (18) and the feedback passage (181). The solenoid valve (3), the fluid (131) of the vacuum pressure reducing valve (16), and the valve seat (141) in the two-position two-position valve (14) are displaced downward; However, if the vacuum inside the body (1) reaches the set value of the vacuum pressure reducing valve (16), the vacuum pressure reducing valve (16) and the reverse can be continuously closed as long as the vacuum suction end (13) is closed. The valve (17) is further closed by the feedback passage (181), and the valve seat (141) of the two-position two-position valve (14) is closed. Thus, the input of the gas supply source (111) can be stopped. And maintaining the body (1) to achieve the energy-saving effect in the state of sucking the articles; but if it is necessary to restart the input of the gas supply source (111), it is necessary to open the vacuum suction end (13) or destroy the vacuum solenoid valve (3). Continue to enter.

In summary, the vacuum-holding vacuum control valve of the present invention can continue the original structure in the vacuum by the mutual connection between the internal components of the body (1) and the return channel (18) and the feedback channel (181). The utility model has the advantages of reduced wear, and when the vacuum degree inside the body (1) reaches the set vacuum degree, the continuous input of the external gas supply source (111) can be stopped, the gas consumption can be greatly saved, and the overall practical application is further improved. Flexible.

1‧‧‧ Ontology

11‧‧‧ input

111‧‧‧ gas supply source

12‧‧‧ Output

13‧‧‧ Vacuum suction end

14‧‧‧Two two-position valve

141‧‧‧ valve seat

15‧‧‧Vacuum Generator

16‧‧‧Vacuum pressure reducing valve

17‧‧‧Check valve

18‧‧‧ loop channel

181‧‧‧Return channel

19‧‧‧Vacuum filter

2‧‧‧Vacuum generating solenoid valve

3‧‧‧Break vacuum solenoid valve

4‧‧‧Muffler

Claims (3)

A vacuum-retaining vacuum control valve includes: a body having a vacuum generating electromagnetic valve positioned above the body, and a breaking vacuum electromagnetic valve positioned below the body, and the body further having an input end , an output end, a vacuum suction end, and a circuit of the circuit, the circuit channel is connected with a two-position two-position valve disposed in the body, a vacuum generator, a vacuum pressure reducing valve and a check valve, and The two-position two-position valve has a valve seat; a feedback passage connecting the valve seat of the two-position two-position valve and the vacuum pressure reducing valve; a gas supply source capable of entering at the input end, through the circuit passage Discharging until the output end; characterized in that: when the gas supply source passes through the body, the check valve is opened, so that the fluid sucked in by the vacuum suction end can suck the valve seat through the feedback passage until the vacuum is reduced The vacuum set by the pressure valve closes the two-position two-position valve to stop the input gas supply source and maintain the maximum vacuum of the body. The vacuum holding type vacuum control valve of claim 1, wherein the gas supply source is required to be continuously supplied, and one of the vacuum vacuum valve or the vacuum suction end is opened. A vacuum holding type vacuum control valve according to claim 1, wherein the vacuum generating electromagnetic valve position is a normally closed state.