CN219549621U - Straight-through pneumatic shutoff valve - Google Patents
Straight-through pneumatic shutoff valve Download PDFInfo
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- CN219549621U CN219549621U CN202321110711.5U CN202321110711U CN219549621U CN 219549621 U CN219549621 U CN 219549621U CN 202321110711 U CN202321110711 U CN 202321110711U CN 219549621 U CN219549621 U CN 219549621U
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- connecting pipe
- shutoff valve
- straight
- pressure
- shell
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Abstract
The utility model relates to the technical field of valves, and particularly discloses a straight-through pneumatic shutoff valve which comprises a shell and a plunger; the shell is provided with a first flow passage; the plunger is slidably disposed within the first flow passage; the pressure regulating cavity is arranged in the shell, the plunger is provided with a sliding part, and the sliding part is assembled in the pressure regulating cavity; the sliding part moves along the pressure regulating cavity in the axial direction according to the air pressure in the pressure regulating cavity, so that the valve is opened and closed; the shell is provided with a first connecting pipe and a second connecting pipe outside, the first connecting pipe and the second connecting pipe are respectively communicated with the first air inlet channel and the second air inlet channel, and the first connecting pipe and/or the second connecting pipe are/is provided with a detection device which can detect the air pressure of the first connecting pipe and/or the second connecting pipe; the through pneumatic shutoff valve can facilitate workers to know whether the air source pressure of the valve meets the pressure requirement specified by opening and closing of the valve, observe whether the air source pressure is stabilized or not, and is good in convenience.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to a straight-through pneumatic shutoff valve.
Background
The through pneumatic cut-off valve is a new product developed, designed and manufactured according to the requirement of steel rolling water supply cooling system fittings, the structural valve belongs to a new product, and when the working medium is water, the working medium can replace various automatic control pneumatic valves such as ball valves, gate valves, cut-off valves, butterfly valves and the like.
The current straight-through pneumatic shutoff valve is not convenient when observing whether the air source pressure is stable, for example, the straight-through pneumatic shutoff valve disclosed by the authority publication No. CN2594557Y comprises a sealing flange valve body with a valve core, a piston flange valve body with a cylinder chamber, a piston pipe with a piston and the like, compressed air is filled into the air-liquid conversion chamber through an air source port, the piston is extruded and moves in the cylinder chamber, the detection of air pressure can not be realized in the working process, whether the air source pressure of the observation valve reaches the pressure requirement regulated by opening and closing the valve or not, and whether the air source pressure is stable or not is observed, so that improvement is necessary.
Disclosure of Invention
The utility model aims to provide the straight-through pneumatic shutoff valve which is convenient for observing and monitoring the air source pressure and the opening and closing conditions of the valve.
In order to solve the problems, the utility model adopts the following technical scheme:
at least one embodiment of the present disclosure provides a straight-through pneumatic shutoff valve including a housing and a plunger.
The shell is provided with a first flow passage, and a pressing seat is arranged in the first flow passage; the plunger is slidably disposed within the first flow passage.
The pressing seat is provided with a first sealing member, the first sealing member faces the plunger, the middle part of the plunger is provided with a second flow passage, and the central axes of the first flow passage and the second flow passage are coincident.
The pressure regulating cavity is arranged in the shell, the plunger is provided with a sliding part, and the sliding part is assembled in the pressure regulating cavity.
The housing is provided with a first air inlet channel and a second air inlet channel, the first air inlet channel and the second air inlet channel are communicated with the pressure regulating cavity, and the sliding part is configured to move in the axial direction along the pressure regulating cavity according to the air pressure in the pressure regulating cavity.
The shell is externally provided with a first connecting pipe and a second connecting pipe, the first connecting pipe and the second connecting pipe are respectively communicated with the first air inlet channel and the second air inlet channel, and a detection device is arranged on the first connecting pipe and/or the second connecting pipe and used for detecting air pressure.
In the through pneumatic shutoff valve provided in at least one embodiment of the present disclosure, the sliding portion is configured with a second sealing member, and the second sealing member is located between a cavity wall of the pressure regulating cavity and the sliding portion.
In the through pneumatic shutoff valve provided by at least one embodiment of the present disclosure, a third sealing member and a fourth sealing member are configured in the first flow channel, and the third sealing member and the fourth sealing member are respectively located at two sides of the sliding portion;
one end of the plunger passes through the third sealing member, and the other end of the plunger passes through the fourth sealing member.
In the through pneumatic shutoff valve provided by at least one embodiment of the present disclosure, the central axis of the second flow channel coincides with the central axis of the first sealing member.
At least one embodiment of the present disclosure provides for a straight-through pneumatic shutoff valve that further includes a guide, a connecting seat, and an indicator.
The connecting seat is fixedly arranged on the outer wall of the shell.
The indicator is configured for sliding connection with the connector.
The shell is provided with a guide hole, and the guide hole is communicated with the pressure regulating cavity.
One end of the guide piece is inserted into the pressure regulating cavity through the guide hole, and the guide piece is fixedly connected with the sliding part.
The other end of the guide piece is positioned outside the shell, and the guide piece is fixedly connected with the indication piece so that the indication piece moves along with the sliding part.
In the straight-through pneumatic shutoff valve provided by at least one embodiment of the present disclosure, the pressing seat includes a positioning seat and a positioning member.
The positioning seat is fixedly arranged in the shell.
The positioning piece is detachably arranged on the positioning seat.
The positioning seat and/or the positioning piece are/is provided with a clamping groove matched with the first sealing component, and the first sealing component is partially clamped between the positioning seat and the positioning piece.
In at least one embodiment of the present disclosure, the first connecting pipe and/or the second connecting pipe has a buffer pipe, and the detecting device is assembled on the buffer pipe.
In the through pneumatic shutoff valve provided by at least one embodiment of the present disclosure, the detection device is a remote pressure gauge or a pressure sensor.
In the straight-through pneumatic shutoff valve provided by at least one embodiment of the present disclosure, the first connecting pipe and the second connecting pipe are detachably connected with the housing.
In at least one embodiment of the present disclosure, the through pneumatic shutoff valve further includes a terminal configured to be connected to the detection device.
The beneficial effects of the utility model are as follows: through being provided with first connecting pipe and second connecting pipe, be provided with detection device detection atmospheric pressure simultaneously on having first connecting pipe and second connecting pipe, can make things convenient for the staff to know whether the air supply pressure of valve reaches the pressure requirement that the valve was opened and close the regulation, observe whether air supply pressure steady voltage etc. convenient.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a sectional view of the through pneumatic shutoff valve in embodiment 1 in an open state.
Fig. 2 is a sectional view of the straight-through pneumatic shutoff valve in embodiment 1 in a closed state.
Fig. 3 is a schematic partial structure of the straight-through pneumatic shutoff valve in embodiment 1.
Fig. 4 is an enlarged view at a in fig. 2.
Fig. 5 is an enlarged view at B in fig. 2.
Fig. 6 is an enlarged view at C in fig. 3.
Fig. 7 is a cross-sectional view of the straight-through pneumatic shutoff valve of embodiment 2 and embodiment 3.
Fig. 8 is a cross-sectional view of the straight-through pneumatic shutoff valve of embodiment 4.
In the figure:
10. a housing; 11. a first flow passage; 12. pressing a base; 13. a pressure regulating cavity; 14. a first air intake passage; 15. a second intake passage; 16. a first connection pipe; 17. a second connection pipe; 18. a positioning seat; 19. a positioning piece;
20. a plunger; 21. a second flow passage; 22. a sliding part;
30. a first sealing member;
40. a second sealing member; 41. YX-shaped rubber sealing rings; 42. an O-shaped rubber sealing ring;
50. a third sealing member; 51. a step ring for the first shaft; 52. a gasket; 53. a copper ring;
60. a fourth sealing member;
70. a guide member;
80. a connecting seat;
90. an indicator;
100. a detection device;
200. a buffer tube.
Detailed Description
The technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only some embodiments, not all embodiments.
When the valve is worn and strained by a long-time use sealing piece or the hole-type sealing ring is aged for a long time, the pneumatic shutoff valve can generate the phenomenon of gas leakage, so that the valve is influenced in use.
Example 1
As shown in fig. 1 to 3, the present embodiment provides a straight-through pneumatic shutoff valve including a housing 10 and a plunger 20.
In order to facilitate the assembly of the plunger 20, the housing 10 adopts a sectional structure, is integrally divided into two sections, and the two sections are spliced and fixed in a bolt connection manner.
Further, the housing 10 has a first flow channel 11, and a pressing seat 12 is disposed in the first flow channel 11; the plunger 20 is slidably disposed within the first flow passage 11.
Further, the pressing seat 12 is provided with a first sealing member 30, the first sealing member 30 faces the plunger 20, a second flow passage 21 is arranged in the middle of the plunger 20, the central axes of the first flow passage 11 and the second flow passage 21 are coincident, and the central axis of the second flow passage 21 is coincident with the central axis of the first sealing member 30. Illustratively, the first sealing member 30 employs a sealing ring.
Further, the pressing seat 12 includes a positioning seat 18 and a positioning member 19. The positioning seat 18 is fixedly disposed within the housing 10. The positioning piece 19 is detachably arranged on the positioning seat 18. The positioning seat 18 and the positioning piece 19 are provided with clamping grooves matched with the first sealing component 30, and the first sealing component 30 is partially clamped between the positioning seat 18 and the positioning piece 19. The first sealing member 30 is stable and not easy to fall off. The positioning element 19 is illustratively bolted to the positioning seat 18.
Further, the pressure regulating chamber 13 is disposed in the housing 10, the plunger 20 has a sliding portion 22, the sliding portion 22 is fitted in the pressure regulating chamber 13, and the plunger 20 and the sliding portion 22 are integrally provided.
The shell 10 is provided with a first air inlet channel 14 and a second air inlet channel 15, the first air inlet channel 14 and the second air inlet channel 15 are communicated with the pressure regulating cavity 13, and the sliding part 22 moves in the axial direction along the pressure regulating cavity 13 according to the air pressure in the pressure regulating cavity 13, so that the valve is opened and closed.
Further, the first connecting pipe 16 and the second connecting pipe 17 are arranged outside the shell 10, the first connecting pipe 16 and the second connecting pipe 17 are respectively communicated with the first air inlet channel 14 and the second air inlet channel 15, the first connecting pipe 16 is provided with a detection device 100, the detection device 100 is used for detecting air pressure, a user can conveniently observe whether the air source pressure of the valve reaches the pressure requirement specified by opening and closing the valve or not, and observe whether the air source pressure is stabilized or not.
In use, the detection device 100 corresponding to the first connecting pipe 16 detects a pressure, and when the pressure value reaches or exceeds a set value, the valve is in a closed state.
In the present embodiment, the second seal member 40 is disposed on the sliding portion 22, and the second seal member 40 is located between the chamber wall of the pressure regulating chamber 13 and the sliding portion 22.
Further, a third seal member 50 and a fourth seal member 60 are disposed in the first flow passage 11, the third seal member 50 and the fourth seal member 60 being located on both sides of the sliding portion 22, respectively; one end of the plunger 20 passes through the third sealing member 50 and the other end of the plunger 20 passes through the fourth sealing member 60.
As shown in fig. 4, the second seal member 40 illustratively includes a hole YX-shaped rubber seal 41 and an O-shaped rubber seal 42; the sliding portion 22 is provided with a first fitting groove and a second fitting groove, and the hole YX-shaped rubber seal and the O-shaped rubber seal are respectively installed in the first fitting groove and the second fitting groove. The sealing structure of the plunger is formed by combining the hole YX-shaped rubber sealing ring 41 and the O-shaped rubber sealing ring 42, and when the hole YX-shaped rubber sealing ring 41 is worn or aged due to long-term use, the O-shaped rubber sealing ring 42 can be used as sealing compensation, so that the sealing performance is improved and the service life is prolonged.
As shown in fig. 5, the third seal member 50 illustratively includes a first shaft step ring 51, a washer 52, and a copper ring 53; a third fitting groove is provided in the wall surface of the first flow passage 11, and the first shaft stepped ring 51, the washer 52, and the copper ring 53 are fitted in the third fitting groove.
Further, the third assembly groove adopts a split type groove structure design; because the space of the valve inner cavity is smaller, the tool handle of the grooving tool is longer and smaller, and the turning tool is easy to vibrate when the inner cavity of the shell 10 is machined, so that the surface of a part is subject to vibration marks, poor machining precision, damaged tool and the like, and under the specification of smaller shaft diameter, the first shaft stepped ring 51 is difficult to install and assemble in the shell 10. Meanwhile, because of the problem of smaller operable space of the inner cavity, the measuring instrument cannot measure and test the depths of the inner cavity and the third assembly groove. The design of the third fitting groove with a split groove is thus the best design solution proposed for the above problem.
As shown in fig. 6, the fourth sealing member 60 illustratively includes a stepped collar for the second shaft; a fourth fitting groove is provided in the wall surface of the first flow passage 11, and the second shaft is fitted in the fourth fitting groove with a stepped ring.
In the present embodiment, the first connection pipe 16 and the second connection pipe 17 are both detachably connected to the housing 10.
Example 2
As shown in fig. 7, this embodiment discloses a straight-through pneumatic shutoff valve, which is substantially the same as embodiment 1, except that: the first connection pipe 16 and the second connection pipe 17 are provided with a detection device 100.
When in use, the detection device 100 corresponding to the first connecting pipe 16 detects pressure, and when the pressure value reaches or exceeds a set value, the valve is in a closed state; conversely, when the detecting device 100 corresponding to the second connecting pipe 17 detects the pressure, the valve is in the open state.
Example 3
As shown in fig. 7, this embodiment discloses a straight-through pneumatic shutoff valve, which is substantially the same as embodiment 1, except that: also included are a guide 70, a connecting seat 80 and an indicator 90.
The connection base 80 is fixedly disposed at the outer wall of the housing 10. The indicator 90 is configured to slidably couple with the connector 80 via a chute. The housing 10 is provided with a guide hole configured to communicate with the pressure regulating chamber 13. One end of the guide member 70 is inserted into the pressure regulating chamber 13 through the guide hole, and the guide member 70 is fixedly connected with the sliding portion 22. The other end of the guide member 70 is located outside the housing 10, and the guide member 70 is fixedly connected with the indicator member 90, and the indicator member 90 can move along with the sliding portion 22.
By providing the indicator 90, the state of opening or closing of the valve of the through pneumatic shutoff valve can be displayed. The position of the travel of the plunger 20 in the valve is also shown.
Example 4
As shown in fig. 8, this embodiment discloses a straight-through pneumatic shutoff valve, which is substantially the same as embodiment 3, except that: and further includes a terminal configured to be connected to the probe apparatus 100.
Further, the detecting device 100 adopts a remote pressure gauge, the first connecting pipe 16 and the second connecting pipe 17 are three-way pipes, one of the outlets of the three-way pipes is connected with a buffer pipe 200, and the buffer pipe is connected with the remote pressure gauge. The buffer tube plays a role in protecting the pressure gauge, and the remote transmission pressure gauge is not damaged by the impact of instantaneous gas; the three-way pipe plays a role in connecting the valve, the remote pressure gauge and the driving air source.
The measured pressure data may be sent to a terminal. The remote visual understanding of whether the air source pressure of the valve reaches the pressure requirement specified by the opening and closing of the valve can be realized through the terminal, whether the air source pressure is regulated or not is observed, and the like.
In addition, in a further embodiment, not shown, the detection device employs a pressure sensor disposed within the buffer tube, the terminal end being configured to be electrically connected to the pressure sensor.
While embodiments of the utility model have been illustrated and described above, the scope of the utility model is not limited thereto, and any changes or substitutions that do not undergo the inventive effort are intended to be included within the scope of the utility model; no element, act, or instruction used herein should be construed as critical or essential unless explicitly described as such.
Claims (10)
1. A straight-through pneumatic shutoff valve comprising:
the shell is provided with a first flow passage, and a pressing seat is arranged in the first flow passage; and
a plunger slidably disposed within the first flow passage;
the pressing seat is provided with a first sealing member, the first sealing member faces the plunger, the middle part of the plunger is provided with a second flow passage, and the central axes of the first flow passage and the second flow passage are coincident;
the pressure regulating cavity is arranged in the shell, the plunger is provided with a sliding part, and the sliding part is assembled in the pressure regulating cavity;
the sliding part is configured to move in the axial direction along the pressure regulating cavity according to the air pressure in the pressure regulating cavity;
the shell is externally provided with a first connecting pipe and a second connecting pipe, the first connecting pipe and the second connecting pipe are respectively communicated with the first air inlet channel and the second air inlet channel, and a detection device is arranged on the first connecting pipe and/or the second connecting pipe and used for detecting air pressure.
2. A straight-through pneumatic shutoff valve as claimed in claim 1, wherein the sliding portion is provided with a second sealing member, the second sealing member being located between the wall of the pressure regulating chamber and the sliding portion.
3. The through pneumatic shutoff valve of claim 1, wherein a third seal member and a fourth seal member are disposed in the first flow passage, the third seal member and the fourth seal member being located on either side of the sliding portion, respectively;
one end of the plunger passes through the third sealing member, and the other end of the plunger passes through the fourth sealing member.
4. A straight-through pneumatic shutoff valve as claimed in claim 1, wherein the central axis of the second flow passage coincides with the central axis of the first sealing member.
5. A straight-through pneumatic shut-off valve according to claim 1, further comprising:
a guide member;
the connecting seat is fixedly arranged on the outer wall of the shell; and
an indicator configured to be slidably coupled to the connector base;
wherein, the shell is provided with a guide hole which is communicated with the pressure regulating cavity;
one end of the guide piece is inserted into the pressure regulating cavity through the guide hole, and the guide piece is fixedly connected with the sliding part;
the other end of the guide piece is positioned outside the shell, and the guide piece is fixedly connected with the indication piece so that the indication piece moves along with the sliding part.
6. The straight-through pneumatic shutoff valve of claim 1, wherein the plunger comprises:
the positioning seat is fixedly arranged in the shell; and
the positioning piece is detachably arranged on the positioning seat;
the positioning seat and/or the positioning piece are/is provided with a clamping groove matched with the first sealing component, and the first sealing component is partially clamped between the positioning seat and the positioning piece.
7. A straight-through pneumatic shut-off valve according to claim 1, characterized in that the first connection pipe and/or the second connection pipe has a buffer pipe, on which the detection means are fitted.
8. A straight-through pneumatic shutoff valve as claimed in claim 1, wherein the detection means is a remote pressure gauge or a pressure sensor.
9. A straight-through pneumatic shutoff valve as claimed in claim 1, wherein the first and second connecting tubes are detachably connected to the housing.
10. The in-line pneumatic shutoff valve of claim 8, further comprising:
and the terminal is configured to be connected with the detection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321110711.5U CN219549621U (en) | 2023-05-09 | 2023-05-09 | Straight-through pneumatic shutoff valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321110711.5U CN219549621U (en) | 2023-05-09 | 2023-05-09 | Straight-through pneumatic shutoff valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219549621U true CN219549621U (en) | 2023-08-18 |
Family
ID=87731190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321110711.5U Active CN219549621U (en) | 2023-05-09 | 2023-05-09 | Straight-through pneumatic shutoff valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219549621U (en) |
-
2023
- 2023-05-09 CN CN202321110711.5U patent/CN219549621U/en active Active
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