CN210068610U - Reaction type pneumatic valve - Google Patents
Reaction type pneumatic valve Download PDFInfo
- Publication number
- CN210068610U CN210068610U CN201920482028.1U CN201920482028U CN210068610U CN 210068610 U CN210068610 U CN 210068610U CN 201920482028 U CN201920482028 U CN 201920482028U CN 210068610 U CN210068610 U CN 210068610U
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- China
- Prior art keywords
- end cover
- air inlet
- rear end
- valve
- air
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- Expired - Fee Related
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- 238000006757 chemical reactions by type Methods 0.000 title abstract description 6
- 238000007789 sealing Methods 0.000 claims description 27
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- Valve Housings (AREA)
Abstract
The utility model provides a reaction type pneumatic valve, including the valve body to and be fixed in rear end cap and the front end housing on the valve body, wherein, all be provided with the air inlet on rear end cap and the front end cap and link to each other with the air inlet the cylinder chamber that is used for plugging up the rear end cap on the air inlet of rear end cap, be provided with end cover and end cover piston seal circle in the cylinder chamber, be provided with the switching-over case in the valve body, side of valve body surface is provided with two gas vents and an atmosphere air inlet simultaneously, and opposite side is provided with two and connects the gas port to all link to each other with the switching-over case, wherein, the atmosphere air inlet links to each other through the restricted flow mouth on drainage hole and rear. The pneumatic valve is used for controlling the direction only by air inlet at one position through air passage drainage, so that external air adding and control systems are not needed, the air valve has air pressure required for air exchange, and the effect of convenient control is achieved.
Description
Technical Field
The utility model relates to a pneumatic control field, in particular to reaction type pneumatic valve.
Background
The existing pneumatic control valve principle is shown in figure 1: the gas valve comprises a gas valve end cover 17, a left gas inlet 18, a round head screw 19, a piston 20, a piston sealing ring 21, a valve body 3, a left gas outlet 23, a steel ball 4, a right gas outlet 24, a right gas inlet 25, a right gas exhaust port 26, a reversing valve core 11, a gas inlet 27, a sealing ring 28, a left gas exhaust port 29 and a positioning ring 30. Wherein the piston sealing ring 21 is installed on the piston 20 to make the piston 20 airtight; the round head screw 19 is used for fixing the air valve end cover 17 and the valve body 3; the steel ball 4 is used for blocking the hole and preventing air leakage; the sealing ring 28 and the positioning ring 30 are arranged on the valve core 11 so that air leakage cannot occur during operation. The structure controls the direction of the air valve through the mode that the left air inlet and the right air inlet alternately admit air.
The air valve is controlled to change direction by the left air inlet and the right air inlet of the existing air valve structure in a mode of alternately feeding air, so that the air valve can be controlled only by adding two groups of air pressure controls, and the control cost is increased.
Disclosure of Invention
In view of the above shortcomings of the prior art, an object of the present invention is to provide a reactive pneumatic valve, which can make the pneumatic valve itself have the air pressure required for ventilation through air passage drainage, thereby achieving convenient control.
In order to achieve the above and other related objects, the present invention provides a reactive pneumatic valve, comprising a valve body, a rear end cap and a front end cap fixed on the valve body, wherein the rear end cap and the front end cap are both provided with an air inlet and a cylinder chamber connected with the air inlet, the air inlet of the rear end cap is provided with a rear end plug for plugging the rear end cap, the cylinder chamber is provided with an end cap and an end cap piston seal ring,
the reversing valve is characterized in that a reversing valve core is arranged in the valve body, meanwhile, two exhaust ports and an atmospheric air inlet are arranged on one side surface of the valve body, two air receiving ports are arranged on the other side surface of the valve body and are connected with the reversing valve core, and the atmospheric air inlet is connected with the flow limiting ports on the rear end cover and the front end cover through air guide holes.
Furthermore, the rear end cover and the front end cover are fixed on the valve body through end cover fixing screws.
Furthermore, fabrication holes are formed in the rear end cover, the valve body and the front end cover, steel balls are arranged in the fabrication holes and are sealed and blocked by the steel balls, and the fabrication holes are used for machining drainage holes.
Furthermore, a flow limiting opening sealing ring is arranged at the position of the flow limiting opening.
Furthermore, a valve core O-shaped sealing ring and a valve core flat gasket sealing ring are arranged on the reversing valve core.
The working principle of the device is as follows: the air is guided to the positions of a rear end cover and a front end cover which are butted at two ends of the valve body through an atmospheric air inlet, the air flow passes through a flow limiting port, the rear flow and the pressure can be reduced to enter the rear end cover and the front end cover, and then enter an upper end cover cylinder chamber and a front end cover cylinder chamber, because the upper end cover cylinder chamber and the front end cover cylinder chamber are provided with pistons consisting of end cover pistons and end cover piston sealing rings, and the end cover piston sealing rings, a certain tension F1 and a friction force F exist between the upper end cover cylinder chamber and the front end cover cylinder chamber, and the pressure generated by the pistons flowing in through the flow limiting port is smaller than the sum of the friction force and the friction force F3 of the reversing valve core, the air can be exhausted to the atmosphere through an m5 thread exhaust port K1 and a 1.5 exhaust port K2, so that the reversing valve core 11 is in a state to be controlled.
At the moment, the m5 threaded exhaust port is closed, airflow flowing in from the flow restriction port can fill the upper end cover cylinder chamber in the rear end cover through the air inlet of the end cover cylinder chamber, and the pressure acting on the end cover piston is larger than the sum of the tension F1, the friction F and the friction F3 of the reversing valve core, so that the end cover piston is pushed to move in the upper end cover cylinder chamber, the reversing valve core is pushed, and reversing is realized. Loosening the m5 screw exhaust port after reversing; similarly, the 1.5 exhaust port is closed, the flow limiting port is enabled, the inflowing airflow passes through the air inlet of the end cover cylinder chamber to fill the front end cover cylinder chamber in the front end cover, the pressure acting on the end cover piston is greater than the sum of the tension F1, the friction force F and the friction force F3 of the reversing valve core, the end cover piston is pushed to move in the front end cover cylinder chamber, the reversing valve core is pushed to realize reversing, and the 1.5 exhaust port is released after the reversing is finished.
By the method, the valve core can be easily and quickly switched, and the quick switching of single reversing time can be completed within 0.05 second. The cost of two control units is saved. And the installation occupies small volume. The control of the power supply can be dispensed with. And a pure air pressure control reversing system is realized. Can be applied to occasions of non-electricity and anti-electromagnetic interference.
As above, the utility model discloses a reaction type pneumatic valve, this pneumatic valve pass through the gas circuit drainage, only need advance the realization that just can relax at a department and to the control of direction, need not external air entrainment and control system, make the pneumatic valve itself have the atmospheric pressure of the needs of taking a breath, reach the effect of convenient control.
Drawings
Fig. 1 is a schematic view showing a structure of a conventional pneumatic valve.
Fig. 2 is a schematic structural view of the pneumatic valve according to the present invention.
Fig. 3 is a cross-sectional view taken along the plane C-C in fig. 2.
Fig. 4 shows a partial cross-sectional view of the end cap and valve body of the pneumatic valve of the present invention.
Fig. 5 is a cross-sectional view taken along plane E-E of fig. 4.
Fig. 6 is a schematic view of another angle structure of the pneumatic valve according to the present invention.
Fig. 7 is a cross-sectional view taken along plane D-D of fig. 6.
In the figure: 1. an end cover fixing screw, 2, a rear end cover, 3, a valve body, 4, a steel ball, 5, a flow limiting port, 6, a flow limiting port sealing ring, 7, an air guiding hole, 8, a rear end plug, 9, an end cover piston, 10, an end cover piston sealing ring, 11, a reversing valve core, 12, a valve core O-shaped sealing ring, 13, a valve core flat gasket sealing ring, 14, an end cover air guiding hole, 15, a rear end cover cylinder chamber, 151, a front end cover cylinder chamber, 16, an end cover cylinder air inlet, 17, an air valve end cover, 18, a left air inlet, 19, a round head screw, 20, a piston, 21, a piston sealing ring, 22, a front end cover, 23, a left air outlet, 24, a right air outlet, 25, a right air inlet, 26, a right exhaust port, 27, an air inlet, 28, a sealing ring, 29, a left exhaust port, 30, a positioning ring, 31, a first exhaust port, 34, an atmospheric air, 37. secondary air inlet, K1, m5 screw outlet, K2, 1.5 outlet.
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
Please refer to fig. 2-7. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
The utility model provides a reaction type pneumatic valve, including end cover fixed screw 1, rear end cap 2, valve body 3, steel ball 4, restriction mouth 5, restriction mouth sealing washer 6, bleed hole 7, rear end cap 8, end cover piston 9, end cover piston sealing washer 10, switching-over case 11, case O type sealing washer 12, case flat gasket sealing washer 13, end cover bleed hole 14, upper end cover cylinder chamber 15, end cover cylinder chamber air inlet 16, front end cover cylinder chamber 151, first exhaust port 31, atmosphere air inlet 34, second exhaust port 35, first air inlet 36, second air inlet 37, m5 screw thread exhaust port K1, 1.5 exhaust port K2 and front end cap 22;
wherein, the end cover fixing screw 1 fixes the rear end cover 2 and the front end cover 22 on the valve body 3 to form the final finished product. The rear end cover 2 is provided with a threaded opening, a rear end plug 8 is arranged in the threaded opening, and the threaded opening is plugged by the rear end plug 8, so that the air flow introduced by the end cover air introducing hole 14 can be discharged from the m5 threaded air outlet k 1.
Meanwhile, the end cover piston 9 and the end cover piston seal ring 10 form a piston which moves in the front end cover cylinder chamber 151 of the upper end cover cylinder chamber 15.
A valve core O-shaped sealing ring 12 and a valve core flat gasket sealing ring 13 are arranged on the reversing valve core 11, so that the reversing sealing performance is ensured.
And the flow limiting port 5 is arranged on the end cover air guide holes 14 in the rear end cover 2 and the front end cover 22 to perform flow limiting treatment, so that the reserved air pressure is not too large.
The process holes on the rear end cover 2, the valve body 3 and the front end cover 22 are smashed by steel balls 4 for sealing and blocking.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention.
Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (5)
1. A reactive pneumatic valve characterized by: comprises a valve body, a rear end cover and a front end cover which are fixed on the valve body, wherein the rear end cover and the front end cover are both provided with an air inlet and an air cylinder chamber connected with the air inlet, the air inlet of the rear end cover is provided with a rear end plug used for plugging the rear end cover, the air cylinder chamber is internally provided with an end cover and an end cover piston sealing ring,
the reversing valve is characterized in that a reversing valve core is arranged in the valve body, meanwhile, two exhaust ports and an atmospheric air inlet are arranged on one side surface of the valve body, two air receiving ports are arranged on the other side surface of the valve body and are connected with the reversing valve core, and the atmospheric air inlet is connected with the flow limiting ports on the rear end cover and the front end cover through air guide holes.
2. A reactive pneumatic valve as in claim 1, further characterized by: the rear end cover and the front end cover are fixed on the valve body through end cover fixing screws.
3. A reactive pneumatic valve as in claim 1, further characterized by: the rear end cover, the valve body and the front end cover are all provided with fabrication holes, and steel balls are arranged in the fabrication holes and are sealed and blocked by the steel balls.
4. A reactive pneumatic valve as in claim 1, further characterized by: and a flow limiting opening sealing ring is arranged at the position of the flow limiting opening.
5. A reactive pneumatic valve as in claim 1, further characterized by: and a valve core O-shaped sealing ring and a valve core flat gasket sealing ring are arranged on the reversing valve core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920482028.1U CN210068610U (en) | 2019-04-10 | 2019-04-10 | Reaction type pneumatic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920482028.1U CN210068610U (en) | 2019-04-10 | 2019-04-10 | Reaction type pneumatic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210068610U true CN210068610U (en) | 2020-02-14 |
Family
ID=69436571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920482028.1U Expired - Fee Related CN210068610U (en) | 2019-04-10 | 2019-04-10 | Reaction type pneumatic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210068610U (en) |
-
2019
- 2019-04-10 CN CN201920482028.1U patent/CN210068610U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200214 |