CN110925461A - Pneumatic three-way valve - Google Patents
Pneumatic three-way valve Download PDFInfo
- Publication number
- CN110925461A CN110925461A CN201911411078.1A CN201911411078A CN110925461A CN 110925461 A CN110925461 A CN 110925461A CN 201911411078 A CN201911411078 A CN 201911411078A CN 110925461 A CN110925461 A CN 110925461A
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- valve
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- rod
- valve rod
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/041—Construction of housing; Use of materials therefor of sliding valves cylindrical slide valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve Housings (AREA)
Abstract
The invention discloses a pneumatic three-way valve which comprises a valve body, a valve plate, a valve rod and a driving cylinder, wherein a valve cavity is arranged in the valve body, a left valve hole, a right valve hole and a side valve hole are respectively arranged at the left end, the right end and the side part of the valve cavity, one end of the valve rod is connected with the driving cylinder, the other end of the valve rod is arranged in the valve cavity, the valve plate is arranged in the valve cavity and sleeved on the valve rod in a sliding and sealing manner, the driving cylinder drives the valve rod to switch between a left position and a right position, when the valve rod is positioned at the left position, the valve plate blocks the right end of the left valve hole and opens the left end of the right valve hole, when the valve rod is positioned at the right position, the valve plate blocks the left end of the right valve hole and opens the right end of the left valve hole, and an elastic piece which acts on the valve. The air cylinder of the pneumatic three-way valve provided by the invention can be provided with no buffer device, so that the weight is light and the switching is quick; the elastic part can play a role in sealing compensation and has long service life.
Description
Technical Field
The invention belongs to the technical field of pneumatic control valves, and particularly relates to a pneumatic three-way valve.
Background
In the related art, a pneumatic three-way valve for a high-flow-demand gas path system usually adopts a plate-type valve core, and a cylinder drives the plate-type valve core to rapidly reciprocate to block or open a valve hole so as to realize the on-off or switching of a high-flow gas pipeline. Because the cylinder has a fast moving speed, the relative moving speed between the plate-type valve core and the valve hole is fast, the generated impact and noise are both very large, and the sealing surface between the plate-type valve core and the valve hole is easy to generate abrasion due to impact. When the sealing surface is abraded, the air sealing effect is influenced, and the normal work of the air path system is influenced, so that the sealing element needs to be replaced regularly, but the material cost and the time cost for replacing the sealing element are higher.
To reduce shock and noise, the cylinder typically requires a damping device. However, after the buffering device is arranged in the cylinder, the speed of the cylinder piston in place becomes relatively slow, which causes the speed of opening or closing the valve core to become slow, and the valve core is not well applicable to application scenes requiring quick switching of gas circuits. In addition, the weight of the three-way valve is increased due to the arrangement of the air cylinder of the buffer device, and the three-way valve cannot be well applied to certain application scenes with high requirements on weight.
Disclosure of Invention
To solve at least one of the above technical problems, the present invention provides a pneumatic three-way valve.
The purpose of the invention is realized by the following technical scheme:
provides a pneumatic three-way valve, which comprises a valve body, a valve plate, a valve rod and a driving cylinder, wherein a valve cavity is arranged in the valve body, the left end, the right end and the lateral part of the valve cavity are respectively provided with a left valve hole, a right valve hole and a lateral valve hole, one end of the valve rod is connected with the driving cylinder, the other end is arranged in the valve cavity, the valve plate is arranged in the valve cavity and sleeved on the valve rod in a sliding and sealing manner, the driving cylinder drives the valve rod to switch between a left position and a right position, when the valve rod is positioned at the left position, the valve plate blocks the right end of the left valve hole and opens the left end of the right valve hole, when the valve rod is positioned at the right position, the valve plate blocks the left end of the right valve hole and opens the right end of the left valve hole, the valve rod is also provided with an elastic part which acts on the valve plate to enable the valve plate to elastically block the right end of the left valve hole when the valve rod is in the left position and/or enable the valve plate to elastically block the left end of the right valve hole when the valve rod is in the right position.
As a further improvement, the valve plate comprises a left valve plate and a right valve plate, and the elastic piece is a spring which is sleeved on the valve rod and is arranged between the left valve plate and the right valve plate at the two ends of the elastic piece.
As a further improvement, the valve rod is provided with a left limiting part and a right limiting part which are used for limiting the left side of the left valve plate and the right side of the right valve plate respectively.
As a further improvement, a left sealing ring is arranged on a sealing joint surface between the left valve plate and the left valve hole, and/or a right sealing ring is arranged on a sealing joint surface between the right valve plate and the right valve hole.
As a further improvement, the left sealing ring is arranged on the left outer edge of the left valve plate, and/or the right sealing ring is arranged on the right outer edge of the right valve plate.
As a further improvement, the left valve plate is provided with a left valve rod through hole, the valve rod penetrates through the left valve rod through hole, and a left sliding sealing element is arranged between the left valve rod through hole and the valve rod.
As a further improvement, the right valve plate is provided with a right valve rod through hole, the valve rod penetrates through the right valve rod through hole, and a right sliding sealing piece is arranged between the right valve rod through hole and the valve rod.
As a further improvement, the valve body is provided with a first connector, a second connector and a third connector which are respectively communicated with the left end of the left valve hole, the right end of the right valve hole and the outer end of the side valve hole.
As further improvement, the valve body includes left valve body, right valve body, left end plate, connecting plate, right-hand member board, left side valve body and right valve body are hollow aluminum alloy ex-trusions, the left end plate sets up the left end at left valve body, the right end plate sets up the right-hand member at right valve body, the connecting plate sets up between the right-hand member of left valve body and the left end of right valve body, the valve pocket is enclosed by left valve body, left end plate, connecting plate and closes and form, left side valve opening sets up on the left end plate, right side valve opening sets up on the connecting plate, it is connected with the one end of valve rod after the right side of right end plate and its piston rod run through right end plate to drive actuating cylinder and fix, the other end of valve rod is.
As a further improvement, the left fixing screw and the right fixing screw are further included, the left fixing screw penetrates through the left end plate and then is in threaded connection with the connecting plate, and the right fixing screw penetrates through the right end plate and then is in threaded connection with the connecting plate.
The invention provides a pneumatic three-way valve which comprises a valve body, a valve plate, a valve rod and a driving cylinder, wherein a valve cavity is arranged in the valve body, the left end, the right end and the lateral part of the valve cavity are respectively provided with a left valve hole, a right valve hole and a lateral valve hole, one end of the valve rod is connected with the driving cylinder, the other end is arranged in the valve cavity, the valve plate is arranged in the valve cavity and sleeved on the valve rod in a sliding and sealing manner, the driving cylinder drives the valve rod to switch between a left position and a right position, when the valve rod is positioned at the left position, the valve plate blocks the right end of the left valve hole and opens the left end of the right valve hole, when the valve rod is positioned at the right position, the valve plate blocks the left end of the right valve hole and opens the right end of the left valve hole, the valve rod is also provided with an elastic part which acts on the valve plate to enable the valve plate to elastically block the right end of the left valve hole when the valve rod is in the left position and/or enable the valve plate to elastically block the left end of the right valve hole when the valve rod is in the right position. The valve rod of the pneumatic three-way valve is also provided with an elastic piece which acts on the valve plate to enable the valve plate to elastically block the right end of the left valve hole when the valve rod is in the left position and/or enable the valve plate to elastically block the left end of the right valve hole when the valve rod is in the right position, and when the driving cylinder drives the valve rod to switch between the left position and the right position, the elastic piece can play a role in buffering impact generated when the valve plate is in contact with the left valve hole and/or the right valve hole and providing elastic compression. Therefore, on one hand, the air cylinder can be provided with no buffer device, the in-place speed of the air cylinder is relatively high, and the speed of the valve plate for plugging the left valve hole or the right valve hole is relatively high, so that the air cylinder can be well suitable for application scenes requiring quick switching of air paths; in addition, the weight of the cylinder without the buffer device is relatively small, and the air cylinder can be well suitable for certain application scenes with high requirements on weight. On the other hand, when the sealing surface between valve plate and left valve opening or right valve opening produces wearing and tearing, because the elastic component makes the valve plate elastic compression shutoff left valve opening or right valve opening, can play the compensation effect, guarantee airtight effect, extension sealing member and pneumatic three-way valve life reduce use cost.
Drawings
The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be obtained on the basis of the following drawings without inventive effort.
FIG. 1 is a cross-sectional view of a pneumatic three-way valve.
Fig. 2 is a perspective view of a pneumatic three-way valve.
Fig. 3 is a schematic perspective assembly structure of the pneumatic three-way valve.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and specific embodiments, and it is to be noted that the embodiments and features of the embodiments of the present application can be combined with each other without conflict.
Referring to fig. 1 to 3, a pneumatic three-way valve according to an embodiment of the present invention includes a valve body 1, a valve plate 2, a valve rod 3, and a driving cylinder 4. The valve body 1 is provided with a valve cavity 5, the left end, the right end and the lateral part of the valve cavity 5 are respectively provided with a left valve hole 6, a right valve hole 7 and a side valve hole 8, wherein the left valve hole 6 and the right valve hole 7 can be used as exhaust valve holes of the valve cavity 5, and the side valve hole 8 can be used as an intake valve hole of the valve cavity 5. One end of the valve rod 3 is connected with the driving cylinder 4, the other end of the valve rod is arranged in the valve cavity 5, the valve plate 2 is arranged in the valve cavity 5, and the valve plate 2 is sleeved on the valve rod 3 in a sliding and sealing mode. The driving cylinder 4 drives the valve rod 3 to switch between a left position and a right position. When valve rod 3 is in the left position (as shown in fig. 1), the right-hand member of valve plate 2 shutoff left valve opening 6 and open the left end of right valve opening 7, when valve rod 3 is in the right position, the left end of valve plate 2 shutoff right valve opening 7 and open the right-hand member of left valve opening 6, still be provided with on the valve rod 3 and act on valve plate 2 makes the right-hand member of valve plate 2 elasticity shutoff left valve opening 6 when valve rod 3 is in the left position and makes valve plate 2 elasticity shutoff right valve opening 7's left end when valve rod 3 is in the right position elastic component 9.
When the pneumatic three-way valve provided by the embodiment of the invention works, the driving cylinder 4 drives the valve rod 3 to switch between a left position and a right position, when the valve rod 3 is positioned at the left position, the valve plate 2 blocks the right end of the left valve hole 6 and opens the left end of the right valve hole 7, a certain spacing distance is kept between a piston of the driving cylinder 4 and a left end cover, at the moment, the side valve hole 8 is communicated with the right valve hole 7, and gas can flow through the side valve hole 8, the valve cavity 5 and the right valve hole 7; when the valve rod 3 is in the right position, the valve plate 2 blocks the left end of the right valve hole 7 and opens the right end of the left valve hole 6, a certain spacing distance is kept between the piston of the driving cylinder 4 and the right end cover, the side valve hole 8 is communicated with the left valve hole 6 at the moment, and gas can flow through the side valve hole 8, the valve cavity 5 and the left valve hole 6. Thus, the pneumatic three-way valve achieves the purpose of switching and communicating the side valve hole 8 with the left valve hole 6 or the right valve hole 7 by driving the cylinder 4.
According to the pneumatic three-way valve provided by the embodiment of the invention, the valve rod is provided with the elastic piece which acts on the valve plate to enable the valve plate to elastically block the right end of the left valve hole when the valve rod is in the left position and/or enable the valve plate to elastically block the left end of the right valve hole when the valve rod is in the right position, and when the driving cylinder drives the valve rod to switch between the left position and the right position, the elastic piece can play a role in buffering impact generated when the valve plate is in contact with the left valve hole and/or the right valve hole and providing elastic compression. Therefore, on one hand, the air cylinder can be provided with no buffer device, the in-place speed of the air cylinder is relatively high, and the speed of the valve plate for plugging the left valve hole or the right valve hole is relatively high, so that the air cylinder can be well suitable for application scenes requiring quick switching of air paths; in addition, the weight of the cylinder without the buffer device is relatively small, and the air cylinder can be well suitable for certain application scenes with high requirements on weight. On the other hand, when the sealing surface between valve plate and left valve opening or right valve opening produces wearing and tearing, because the elastic component makes the valve plate elastic compression shutoff left valve opening or right valve opening, can play the compensation effect, guarantee airtight effect, extension sealing member and pneumatic three-way valve life reduce use cost.
As a further preferred embodiment, the valve plates include a left valve plate 21 located on the left side and a right valve plate 22 located on the right side, the left valve plate 21 is used for plugging or opening the left valve hole 6, the right valve plate 22 is used for plugging or opening the right valve hole 7, the elastic member 9 is a spring which is sleeved on the valve rod 3 and is provided between the left valve plate 21 and the right valve plate 22 at two ends, the spring is a coil spring, an annular groove is respectively provided on one position of the left valve plate 21 opposite to the right valve plate 22, and an end of the coil spring is clamped in the annular groove. Like this, through setting up two valve plates, make the valve plate and correspond the distance between the valve opening shorter relatively, the distance of pneumatic three-way valve switching-over is also shorter, and the switching-over speed is very fast, and the stroke of cylinder also can be less to further reduce the weight of cylinder, be applicable to the gas circuit fast switch-over better and the demand of lightweight. In addition, a spring is adopted to act on the two valve plates, the structure is simpler, and the cost is lower.
In a more preferred embodiment, the valve rod 3 is provided with a left stopper 31 and a right stopper 32 for stopping the left side of the left valve plate 21 and the right side of the right valve plate 22, respectively. Wherein, the right limit part 32 is formed by the boss of the valve rod 3 periphery integrated into one piece, and the left limit part 31 is formed by the gasket of fix with screw at the valve rod 3 left end, is convenient for like this with left valve plate 21, right valve plate 22 and spring mounting on valve rod 3. The valve rod 3 is provided with the left limiting part 31 and the right limiting part 32, so that the movement range of the left valve plate 21 and the movement range of the right valve plate 22 can be limited, and the elastic part can better apply elastic force to the left valve plate 21 and the right valve plate 22.
In a more preferred embodiment, a left gasket 23 is provided on a sealing joint surface between the left valve plate 21 and the left valve hole 6, and a right gasket 24 is provided on a sealing joint surface between the right valve plate 22 and the right valve hole 7. The left sealing ring 23 is arranged on the left outer edge of the left valve plate 21, and/or the right sealing ring 24 is arranged on the right outer edge of the right valve plate 22. The left sealing ring 23 and the right sealing ring 24 can keep good air tightness when the valve plate is in sealing fit with the valve hole.
In a further preferred embodiment, the left valve plate 21 is provided with a left valve rod through hole, the valve rod 3 is inserted into the left valve rod through hole, and a left sliding seal 26 is arranged between the left valve rod through hole and the valve rod 3. The right valve plate 22 is provided with a right valve rod through hole, the valve rod 3 is arranged in the right valve rod through hole in a penetrating mode, and a right sliding sealing piece 27 is arranged between the right valve rod through hole and the valve rod 3. The left and right sliding seals 26 and 27 maintain good airtightness when the valve stem 3 is slidably fitted in the valve stem through-hole.
In a more preferred embodiment, the valve body 1 is provided with a first port 18, a second port 19, and a third port 20 which communicate with the left end of the left valve hole 6, the right end of the right valve hole 7, and the outer end of the side valve hole 8, respectively. The first port 18 and the second port 19 may serve as exhaust ports, and the third port 20 may serve as an intake port. When the pneumatic three-way valve is located at the left position, the second port 19 is communicated with the third port 20, and when the pneumatic three-way valve is located at the right position, the first port 18 is communicated with the third port 20.
As further preferred embodiment, valve body 1 includes left valve body 11, right valve body 12, left end plate 13, connecting plate 14, right end plate 15, left side valve body 11 and right valve body 12 are hollow aluminum alloy ex-trusions, left end plate 13 sets up the left end at left valve body 11, right end plate 15 sets up the right-hand member at right valve body 12, connecting plate 14 sets up between the right-hand member of left valve body 11 and the left end of right valve body 12, valve chamber 5 is enclosed by left valve body 11, left end plate 13, connecting plate 14 and closes and form, left valve opening 6 sets up on left end plate 13, right valve opening 7 sets up on connecting plate 14, drive cylinder 4 and fix on right end plate 15's right side and its piston rod and be connected with valve rod 3's one end behind the right end plate 15 runs through, the other end of valve rod 3 runs through behind connecting plate 14 and is connected with valve plate 2. In order to facilitate the connection between the left valve body 11, the right valve body 12, the left end plate 13, the connecting plate 14 and the right end plate 15, the pneumatic three-way valve further comprises a plurality of left fixing screws 16 and a plurality of right fixing screws 17, the left fixing screws 16 penetrate through the left end plate 13 and then are in threaded connection with the connecting plate 14, and the right fixing screws 17 penetrate through the right end plate 15 and then are in threaded connection with the connecting plate 14. Like this, because left side valve body and right valve body are hollow aluminum alloy ex-trusions, and whole pneumatic three-way valve adopts the assembled structure, on the one hand can the holistic weight of greatly reduced three-way valve, and on the other hand can also reduce material cost and maintenance cost.
In the description above, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore should not be construed as limiting the scope of the present invention.
In conclusion, although the present invention has been described with reference to the preferred embodiments, it should be noted that, although various changes and modifications may be made by those skilled in the art, they should be included in the scope of the present invention unless they depart from the scope of the present invention.
Claims (10)
1. The pneumatic three-way valve is characterized by comprising a valve body (1), a valve plate (2), a valve rod (3) and a driving cylinder (4), wherein a valve cavity (5) is arranged in the valve body (1), the left end, the right end and the side part of the valve cavity (5) are respectively provided with a left valve hole (6), a right valve hole (7) and a side valve hole (8), one end of the valve rod (3) is connected with the driving cylinder (4), the other end of the valve rod is arranged in the valve cavity (5), the valve plate (2) is arranged in the valve cavity (5) and is sleeved on the valve rod (3) in a sliding sealing manner, the driving cylinder (4) drives the valve rod (3) to switch between a left position and a right position, when the valve rod (3) is in the left position, the valve plate (2) blocks the right end of the left valve hole (6) and opens the left end of the right valve hole (7), when the valve rod (3) is in the right position, the valve plate (2) blocks the left end of the right valve hole, the valve rod (3) is further provided with an elastic piece (9) which acts on the valve plate (2) to enable the valve plate (2) to elastically block the right end of the left valve hole (6) when the valve rod (3) is in the left position and/or enable the valve plate (2) to elastically block the left end of the right valve hole (7) when the valve rod (3) is in the right position.
2. A pneumatic three-way valve according to claim 1, characterized in that: the valve plate includes left valve plate (21), right valve plate (22), elastic component (9) are for the cover establish the spring between left valve plate (21), right valve plate (22) on valve rod (3) and both ends top.
3. A pneumatic three-way valve according to claim 2, wherein: the valve rod (3) is provided with a left limiting part (31) and a right limiting part (32) which are used for limiting the left side of the left valve plate (21) and the right side of the right valve plate (22) respectively.
4. A pneumatic three-way valve according to claim 1, characterized in that: be provided with left sealing washer (23) on the sealed composition surface between left valve plate (21) and left valve opening (6), and/or be provided with right sealing washer (24) on the sealed composition surface between right valve plate (22) and right valve opening (7).
5. A pneumatic three-way valve according to claim 4, characterized in that: the left sealing ring (23) is arranged on the left outer edge of the left valve plate (21), and/or the right sealing ring (24) is arranged on the right outer edge of the right valve plate (22).
6. A pneumatic three-way valve according to claim 2, wherein: the left valve plate (21) is provided with a left valve rod through hole, the valve rod (3) penetrates through the left valve rod through hole, and a left sliding sealing element (26) is arranged between the left valve rod through hole and the valve rod (3).
7. A pneumatic three-way valve according to claim 2, wherein: the right valve plate (22) is provided with a right valve rod through hole, the valve rod (3) penetrates through the right valve rod through hole, and a right sliding sealing element (27) is arranged between the right valve rod through hole and the valve rod (3).
8. A pneumatic three-way valve according to claim 1, characterized in that: the valve body (1) is provided with a first connector (18), a second connector (19) and a third connector (20) which are respectively communicated with the left end of the left valve hole (6), the right end of the right valve hole (7) and the outer end of the side valve hole (8).
9. A pneumatic three-way valve according to any one of claims 1 to 8, characterized in that: the valve body (1) comprises a left valve body (11), a right valve body (12), a left end plate (13), a connecting plate (14) and a right end plate (15), wherein the left valve body (11) and the right valve body (12) are hollow aluminum alloy sections, the left end plate (13) is arranged at the left end of the left valve body (11), the right end plate (15) is arranged at the right end of the right valve body (12), the connecting plate (14) is arranged between the right end of the left valve body (11) and the left end of the right valve body (12), the valve cavity (5) is formed by enclosing the left valve body (11), the left end plate (13) and the connecting plate (14), the left valve hole (6) is arranged on the left end plate (13), the right valve hole (7) is arranged on the connecting plate (14), the driving cylinder (4) is fixed on the right side of the right end plate (15) and a piston rod of the driving cylinder penetrates through the right end plate (15) and then is, the other end of the valve rod (3) penetrates through the connecting plate (14) and then is connected with the valve plate (2).
10. A pneumatic three-way valve according to claim 9, wherein: still include a plurality of left set screw (16) and a plurality of right set screw (17), left side set screw (16) pass behind left end board (13) with connecting plate (14) threaded connection, right side set screw (17) pass behind right end board (15) with connecting plate (14) threaded connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911411078.1A CN110925461A (en) | 2019-12-31 | 2019-12-31 | Pneumatic three-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911411078.1A CN110925461A (en) | 2019-12-31 | 2019-12-31 | Pneumatic three-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110925461A true CN110925461A (en) | 2020-03-27 |
Family
ID=69854531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911411078.1A Pending CN110925461A (en) | 2019-12-31 | 2019-12-31 | Pneumatic three-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110925461A (en) |
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2019
- 2019-12-31 CN CN201911411078.1A patent/CN110925461A/en active Pending
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