Thin electric proportional valve with quick exhaust valve

Abstract

The present invention discloses a thin electrically controlled proportional valve with a quick exhaust valve, which comprises: a valve seat connected to an intake solenoid valve, an exhaust solenoid valve and a pressure sensor, the valve seat having an input end for inputting a primary side pressure, an output end for outputting a secondary side pressure and an atmospheric end for discharging the secondary side pressure, a first flow path is provided from the input end to the intake solenoid valve, a second flow path is provided from the intake solenoid valve to the output end, and the second flow path is also connected to the exhaust solenoid valve, a third flow path is also provided from the exhaust solenoid valve to the atmospheric end, and a quick exhaust valve is provided in the second flow path and connected to the third flow path, when the quick exhaust valve is normally opened downward, the secondary side pressure can be finely adjusted through the exhaust solenoid valve and the third flow path, and when the quick exhaust valve is closed upward, the output end is directly connected to the third flow path to the atmospheric end to discharge a large amount of secondary side pressure, so that the secondary side pressure can be switched between general and large discharge according to demand.

Description

Technical Field

[0001] The invention belongs to the field of electric control proportional valves, in particular to a thin electric control proportional valve with a quick exhaust valve which can be applied to positive and negative pressures. Background Art

[0002] Existing electric proportional valves usually have only a few external connection ends, which are usually used to provide gas input, output and exhaust to the atmosphere. If detailed information of the above actions needs to be further monitored, additional sensors and LED displays must be configured for monitoring.

[0003] Therefore, in addition to the additional cost of configuring components and the space used for installing components, it is even necessary to readjust the original position of the electric proportional valve, which will make the installation setting more complicated.

[0004] Even if additional components are added, the flow path design inside the structure can only support a certain flow rate. Therefore, when adjusting the flow rate of external gas input, the incoming flow rate will still be limited by the flow rate of the aforementioned channel, which greatly limits the range of flow adjustment. If it is necessary to switch between positive pressure and negative pressure at the same time, the relevant components and configurations will be more complicated, and the space volume occupied will also be more. Summary of the invention

[0005] In view of the above-mentioned situations and problems, the inventor has accumulated many years of development experience in related industries, and after intensive research, he integrated the deficiencies of the above-mentioned existing structures and created a thin electric controlled proportional valve with a quick exhaust valve that better meets the needs of modern users.

[0006] The present invention is a thin electrically controlled proportional valve with a quick exhaust valve, comprising: a valve seat connected with an intake solenoid valve, an exhaust solenoid valve and a pressure sensor, the valve seat having an input end for inputting a primary side pressure, an output end for outputting a secondary side pressure and an atmospheric end for exhausting the secondary side pressure, a first flow path is provided from the input end to the intake solenoid valve, a second flow path is provided from the intake solenoid valve to the output end, and the second flow path is also connected to the exhaust solenoid valve, and a third flow path is provided from the exhaust solenoid valve to the atmospheric end; a quick exhaust valve is provided in the second flow path, and the quick exhaust valve is connected to the third flow path, when the quick exhaust valve is normally opened downward, the secondary side pressure is adjusted through the exhaust solenoid valve and the third flow path, and when the quick exhaust valve is closed upward, the output end is directly connected to the third flow path to the atmospheric end to exhaust the secondary side pressure.

[0007] Its main technical purpose is to add a quick exhaust valve in the valve seat, and through the second flow path and the third flow path connected to the quick exhaust valve, monitor the secondary side pressure through a pressure sensor, so that the secondary side pressure can be generally and largely discharged through one of the aforementioned flow paths according to the flow state, so as to flow to the atmosphere end for discharge, and can meet the needs of users of the air pressure system and thus adjust the flow rate of discharging the secondary side pressure.

[0008] The second technical purpose of the thin electrically controlled proportional valve of the present invention with a quick exhaust valve is that the pressure sensor is electrically connected to an LED display, which is arranged at an appropriate position on the surface of the pressure sensor and can be used to provide information on the display voltage and related pressure status.

[0009] The thin electrically controlled proportional valve with a quick exhaust valve of the present invention comprises: a valve seat connected with an intake solenoid valve, an exhaust solenoid valve and a pressure sensor, the valve seat having an input end for circulating a primary side pressure, an output end for circulating a secondary side pressure and an atmospheric end for circulating an external atmosphere, a first flow path is provided from the input end to the intake solenoid valve, a second flow path is provided from the intake solenoid valve to the output end, and the second flow path is also connected to the exhaust solenoid valve, and a third flow path is provided from the exhaust solenoid valve to the atmospheric end: a quick exhaust valve is provided in the second flow path, and the quick exhaust valve closes the third flow path and connects the second flow path, when the secondary side pressure at the output end is vacuum attracted by the primary side pressure at the input end through the first flow path and the second flow path, the external atmosphere at the atmospheric end can be circulated through the exhaust solenoid valve in cooperation with the third flow path to destroy the secondary side pressure, thereby achieving the purpose of fine-tuning the strength of vacuum adsorption. Its third technical purpose is to enable the quick exhaust valve to be used for negative pressure vacuum adsorption after it is closed.

[0010] To achieve the above-mentioned purpose, the present invention can switch the flow of the secondary side pressure to different flow paths by adding an LED display to cooperate with the quick exhaust valve and the pressure sensor for monitoring, so that it can meet the needs of ordinary and large-scale discharge, and can fix the state of the quick exhaust valve so that it can be used under positive pressure and negative pressure conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the present invention.

[0012] Figure 2 It is a schematic diagram of the present invention in a preparation state.

[0013] Figure 3 It is a schematic diagram of the present invention in working state.

[0014] Figure 4 It is a schematic diagram of the present invention in a fine-tuning state.

[0015] Figure 5 It is a schematic diagram of the present invention in a large number of adjustment states.

[0016] Figure 6 It is a control schematic diagram of the present invention.

[0017] Figure 7 It is a schematic diagram of another embodiment of the present invention in a preparation state.

[0018] Figure 8 FIG. 4 is a schematic diagram of another embodiment of the present invention in a working state.

[0019] Fig. 9 FIG. 4 is a schematic diagram of another embodiment of the present invention in a fine-tuning state.

[0020] Description of reference numerals:

[0021] (10)...valve seat

[0022] (11)...Input

[0023] (111)...First flow path

[0024] (12)...Output

[0025] (121)...Second flow path

[0026] (13)...Atmospheric end

[0027] (131)...Third flow path

[0028] (20)...Intake solenoid valve

[0029] (30)...Exhaust solenoid valve

[0030] (40)...Pressure sensor

[0031] (41)...LED display

[0032] (50)...Quick exhaust valve

[0033] (P1)...Primary side pressure

[0034] (P2)...Secondary pressure

[0035] (P3) ...external atmosphere. DETAILED DESCRIPTION

[0036] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, but should not be construed as limiting the present invention.

[0037] Generally, according to the present invention, the best possible embodiment, and with the accompanying drawings Figure 1-6 After the detailed description, to increase the understanding of the present invention;

[0038] The present invention is a thin electrically controlled proportional valve with a quick exhaust valve, which is mainly driven by positive pressure supply. Its structure includes: a valve seat 10, the top of which is connected to an intake solenoid valve 20, an exhaust solenoid valve 30 and a pressure sensor 40. The valve seat 10 is provided with an input end 11 for inputting a primary side pressure P1 on the upper left side, an output end 12 for outputting a secondary side pressure P2 on the right side, and an atmospheric end 13 for discharging the secondary side pressure P2 on the lower left side. The pressure sensor 40 has the function of monitoring the secondary side pressure, and is further provided with an LED display 41, which is provided at an appropriate position on the surface of the pressure sensor 40 and can be used to provide information on the display voltage and related pressure status.

[0039] Among them, a first flow path 111 is provided from the input end 11 to the intake solenoid valve 20, and a second flow path 121 is provided from the intake solenoid valve 20 to the output end 12, and the second flow path 121 is also connected to the exhaust solenoid valve 30 at the same time, and a third flow path 131 is provided from the exhaust solenoid valve 30 to the atmosphere end 13.

[0040] A quick exhaust valve 50 is arranged in the second flow path 121, and the quick exhaust valve 50 is connected to the third flow path 131. The purpose of opening and closing can be achieved mainly through the displacement of the quick exhaust valve 50. When the quick exhaust valve 50 is normally opened downward, the secondary side pressure P2 is finely adjusted through the exhaust solenoid valve 30 and the third flow path 131. When the quick exhaust valve 50 is closed upward, the output end 12 is directly connected to the third flow path 131 to the atmosphere end 13 to discharge a large amount of the secondary side pressure P2.

[0041] When the quick exhaust valve 50 is displaced, the speed at which the pressure values ​​through the second flow path 121 and the third flow path 131 decrease will be detected by the pressure sensor 40, and can be directly electrically linked to the control circuit and displayed on the LED display 41, making the thin electric-controlled proportional valve with a quick exhaust valve of the present invention more convenient to use in adjustment and control.

[0042] Please refer to the diagram again Figure 7-9, is another embodiment of the present invention, which is mainly carried out in a negative pressure vacuum manner, and its structure includes: an intake solenoid valve 20, an exhaust solenoid valve 30 and a pressure sensor 40 are connected to the top of a valve seat 10, the valve seat 10 has an input end 11 for a primary side pressure P1 to flow, an output end 12 for a secondary side pressure P2 to flow and an atmospheric end 13 for an external atmosphere P3 to flow, a first flow path 111 is provided from the input end 11 to the intake solenoid valve 20, a second flow path 121 is provided from the intake solenoid valve 20 to the output end 12, and the second flow path 121 is also connected to the exhaust solenoid valve 30, and a third flow path 131 is provided from the exhaust solenoid valve 30 to the atmospheric end 13.

[0043] A quick exhaust valve 50 is arranged in the second flow path 121, and the quick exhaust valve 50 closes the third flow path 131 to connect with the second flow path 121. When the secondary side pressure P2 of the output end 12 is vacuum-sucked through the first flow path 111 and the second flow path 121 with the primary side pressure P1 of the input end 11, the external atmosphere P3 of the atmosphere end 13 can flow through the third flow path 131 through the exhaust solenoid valve 30 to destroy the secondary side pressure P2, thereby achieving the purpose of fine-tuning the vacuum adsorption strength.

[0044] In summary, the thin electrically controlled proportional valve with a quick exhaust valve of the present invention can be installed with the quick exhaust valve 50 inside the structure, and the quick exhaust valve 50 can be driven by the second flow path 121 and the third flow path 131 to make fine adjustments to the air pressure flow rate, or switch to adjust the large amount of flow. In addition, the LED display 41 provided on the structure can intuitively understand the current usage status, and the related switching and adjustment of related parameters is also more convenient. There is no need to add additional display components and learn related operations like the existing mechanism, which can further streamline its space utilization.

[0045] The above describes in detail the structure, features and effects of the present invention based on the embodiments shown in the drawings. The above is only a preferred embodiment of the present invention, but the present invention is not limited to the scope of implementation shown in the drawings. Any changes made according to the concept of the present invention, or modifications to equivalent embodiments with equivalent changes, which still do not exceed the spirit covered by the description and drawings, should be within the protection scope of the present invention.

Claims

1. A thin electrically controlled proportional valve with a quick exhaust valve, characterized in that: The invention comprises: a valve seat (10) connected to an intake solenoid valve (20), an exhaust solenoid valve (30) and a pressure sensor (40); the valve seat (10) has an input end (11) for inputting a primary side pressure (P1), an output end (12) for outputting a secondary side pressure (P2) and an atmospheric end (13) for exhausting the secondary side pressure (P2); a first flow path (111) is provided from the input end (11) to the intake solenoid valve (20); a second flow path (121) is provided from the intake solenoid valve (20) to the output end (12); and the second flow path (121) is also The second flow path (121) is connected to the exhaust solenoid valve (30), and a third flow path (131) is provided from the exhaust solenoid valve (30) to the atmosphere end (13); a quick exhaust valve (50) is provided in the second flow path (121), and the quick exhaust valve (50) is connected to the third flow path (131); when the quick exhaust valve (50) is normally opened downward, the secondary side pressure (P2) is adjusted through the exhaust solenoid valve (30) and the third flow path (131); and when the quick exhaust valve (50) is closed upward, the output end (12) is directly connected to the third flow path (131) to the atmosphere end (13) to discharge the secondary side pressure (P2).

2. The thin electrically controlled proportional valve with a quick exhaust valve according to claim 1, characterized in that: The pressure sensor (40) comprises: an LED display (41) arranged at a suitable position on the surface of the pressure sensor (40) for providing information on display voltage and related pressure status.

3. A thin electrically controlled proportional valve with a quick exhaust valve, characterized in that: The invention comprises: a valve seat (10) connected to an intake solenoid valve (20), an exhaust solenoid valve (30) and a pressure sensor (40); the valve seat (10) has an input end (11) for a primary side pressure (P1) to flow, an output end (12) for a secondary side pressure (P2) to flow and an atmosphere end (13) for an external atmosphere (P3) to flow; a first flow path (111) is provided from the input end (11) to the intake solenoid valve (20); a second flow path (121) is provided from the intake solenoid valve (20) to the output end (12); and the second flow path (121) is also connected to the exhaust solenoid valve (30); and the exhaust A third flow path (131) is provided from the gas solenoid valve (30) to the atmosphere end (13): a quick exhaust valve (50) is provided in the second flow path (121), and the quick exhaust valve (50) closes the third flow path (131) and connects with the second flow path (121). When the secondary side pressure (P2) of the output end (12) is vacuum-sucked by the first flow path (111) and the second flow path (121) with the primary side pressure (P1) of the input end (11), the external atmosphere (P3) of the atmosphere end (13) can flow through the exhaust solenoid valve (30) in cooperation with the third flow path (131) to destroy the secondary side pressure (P2).

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