CN217519322U - Position-keeping valve of pneumatic control air lock - Google Patents
Position-keeping valve of pneumatic control air lock Download PDFInfo
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- CN217519322U CN217519322U CN202221697039.XU CN202221697039U CN217519322U CN 217519322 U CN217519322 U CN 217519322U CN 202221697039 U CN202221697039 U CN 202221697039U CN 217519322 U CN217519322 U CN 217519322U
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Abstract
The utility model relates to a gas accuse air lock position-keeping valve, its technical scheme main points are: the method comprises the following steps: a first valve body and a second valve body; the first valve body is detachably connected with the second valve body; a first valve cavity is formed in the first valve body; a second valve cavity is formed in the second valve body; the first valve cavity is communicated with the second valve cavity; a first valve core assembly is movably arranged in the first valve cavity; a second valve core assembly is movably arranged in the second valve cavity; the first valve core assembly is abutted with the second valve core assembly; a first air port and a second air port are formed in the first valve body; the second valve body is provided with an air inlet and at least one air outlet; the first air port and the second air port are communicated with the first valve cavity; the air inlet and the air outlet are communicated with the second valve cavity; this application has the advantage of the maintenance of being convenient for of split type structure easy loading and unloading.
Description
Technical Field
The utility model relates to a pneumatic means technical field, more specifically say, it relates to a gas accuse air lock position-keeping valve.
Background
The pneumatic position-keeping locking valve is one of the auxiliary units of the pneumatic unit combination instrument, when an air source system breaks down, the locking valve can automatically cut off the passage between the regulator and the valve, so that the valve is kept at the original position to ensure the normal operation of the technological process, and the normal operation is recovered until the air source failure is eliminated.
However, in the related prior art, the pneumatic position-keeping locking valve is generally of an integrally formed structure, and the working frequency of the pneumatic position-keeping locking valve is high, so that the pneumatic position-keeping locking valve can be maintained only by integrally disassembling when a fault occurs, the integrated valve body is more complicated in assembling and disassembling process, and the maintenance cost is higher, so that the improvement is needed.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a position valve is protected to gas accuse gas lock has split type structure and easily loads and unloads the advantage of being convenient for the maintenance.
The above technical purpose of the present invention can be achieved by the following technical solutions: a pneumatically controlled airlock position retention valve comprising: a first valve body and a second valve body; the first valve body is detachably connected with the second valve body; a first valve cavity is formed in the first valve body; a second valve cavity is formed in the second valve body; the first valve chamber is communicated with the second valve chamber; a first valve core assembly is movably arranged in the first valve cavity; a second valve core assembly is movably arranged in the second valve cavity; the first valve core assembly is abutted with the second valve core assembly; the first valve body is provided with a first air port and a second air port which are used for connecting an external output pipeline; the second valve body is provided with an air inlet used for connecting an external input air source and at least one exhaust port used for rapid exhaust; the first air port and the second air port are communicated with the first valve cavity; the air inlet and the air outlet are both communicated with the second valve cavity.
Optionally, the first valve core assembly includes: the valve core, a mandril for driving the valve core to move in the first valve cavity and a first return spring for returning the valve core after moving;
the valve core is arranged on the ejector rod; the ejector rod is arranged in the first valve cavity in a sliding mode, and one end of the ejector rod is abutted to the second valve core assembly; the first reset spring is sleeved on the ejector rod; one end of the first return spring is abutted against the inner wall of the first valve cavity, and the other end of the first return spring is abutted against the valve core.
Optionally, the second spool assembly comprises: the piston and the second return spring are used for returning the piston after moving; the piston is arranged in the second valve cavity in a sliding mode, and one end of the piston is abutted to the ejector rod; the second return spring is sleeved on the piston and is abutted against the inner wall of the second valve cavity.
Optionally, the first air port is an internal thread air port; the second air port is an external thread air port.
Optionally, the aperture of the first air port is 18 mm-19 mm.
Optionally, the aperture of the second air port is 18 mm-19 mm.
Optionally, the first valve body and the second valve body are both metal valve bodies.
Optionally, a sealing ring for improving the air tightness of the device is arranged at the joint of the first valve body and the second valve body.
Optionally, the sealing ring is a rubber sealing ring.
To sum up, the utility model discloses following beneficial effect has:
1. the pneumatic control air lock position-keeping valve is formed by assembling a split first valve body and a split second valve body, and can be put into operation after the first valve body and the second valve body are connected and fastened in normal use; when needing to maintain it, alright overhaul arbitrary valve body after separating first valve body and second valve body, loading and unloading are convenient, and the maintenance cost is low.
2. The second valve body with the air inlet is simultaneously provided with the air outlet, when the air source pressure at the air inlet is smaller than a certain value, the air outlet can quickly exhaust the air in the second valve body, so that the first air port and the second air port on the first valve body are quickly opened, and the air locking function is realized.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic cross-sectional view of the present invention.
In the figure: 1. a first valve body; 2. a second valve body; 3. a first valve core assembly; 31. a valve core; 32. a top rod; 33. a first return spring; 4. a second spool assembly; 41. a piston; 42. a second return spring; 5. a first air port; 6. a second air port; 7. an air inlet; 8. and (7) an exhaust port.
Detailed Description
In order to make the objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature. The terms "vertical," "horizontal," "left," "right," "up," "down," and the like are used for descriptive purposes only and are not intended to indicate or imply that the referenced device or element must be in a particular orientation, constructed and operated, and therefore should not be construed as limiting the present invention.
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1 and 2, the utility model provides a position valve is protected to gas accuse air lock, include: a first valve body 1 and a second valve body 2; the first valve body 1 is detachably connected with the second valve body 2; a first valve cavity is formed in the first valve body 1; a second valve cavity is formed in the second valve body 2; the first valve chamber is communicated with the second valve chamber; a first valve core component 3 is movably arranged in the first valve cavity; a second valve core assembly 4 is movably arranged in the second valve cavity; the first valve core component 3 is abutted with the second valve core component 4; a first air port 5 and a second air port 6 for connecting an external output pipeline are formed in the first valve body 1; the second valve body 2 is provided with an air inlet 7 for connecting an external input air source and at least one exhaust port 8 for rapid exhaust; the first air port 5 and the second air port 6 are communicated with the first valve cavity; the inlet port 7 and the outlet port 8 are both in communication with the second valve chamber.
In the embodiment, the pneumatic control air lock position-keeping valve is a safety valve which can automatically cut off the passage of the valve to realize the air lock function; the position-keeping valve comprises a first valve body 1 and a second valve body 2 which are connected with each other, a first valve cavity of the first valve body 1 and a second valve cavity of the second valve body 2 are communicated with each other, a first valve core assembly 3 is movably arranged in the first valve cavity, a second valve core assembly 4 is movably arranged in the second valve cavity, when an external air source is input into the second valve cavity from an air inlet 7, the second valve core assembly 4 can be pushed to move by air flow, and the second valve core assembly 4 is abutted to the first valve core assembly 3, so that the first valve core assembly 3 can be pushed to move when the second valve core assembly 4 moves, and when the first valve core assembly 3 slides in the first valve cavity, the effect of controlling the first air port 5 and the second air port 6 to be switched on or switched off is achieved;
the utility model provides a gas accuse airlock position-keeping valve's theory of operation as follows: when the air inlet 7 is connected with an external input air source and the pressure of the air source is continuous and is greater than 0.25MPA, the first air port 5 and the second air port 6 are in a conducting state; when the air inlet 7 has no air source pressure or the air source pressure is less than 0.25MPA, the first air port 5 and the second air port 6 are in a closed state; in addition, when the input air supply of air inlet 7 department is less than 0.25MPA, the gas in the second valve chamber accessible second valve body 2 is gone up the gas vent 8 of seting up and is discharged fast, and gaseous quick discharge back atmospheric pressure is less, and first case subassembly 3 resets and promotes second case subassembly 4 and resets, and first gas port 5 and second gas port 6 are stopped under the reset action of first case subassembly 3 to form the quick circuit break of first valve body 1, and then realize the lock gas function.
Further, the first spool assembly 3 includes: the valve core 31, a mandril 32 for driving the valve core 31 to move in the first valve cavity, and a first return spring 33 for returning the valve core 31 after moving; the valve core 31 is arranged on the mandril 32; the push rod 32 is arranged in the first valve cavity in a sliding mode, and one end of the push rod 32 abuts against the second valve core 31 component; the first return spring 33 is sleeved on the ejector rod 32; one end of the first return spring 33 abuts against the inner wall of the first valve chamber, and the other end of the first return spring 33 abuts against the valve element 31.
In this embodiment, the valve core 31, the plunger 32 and the first return spring 33 are indispensable components in the position-maintaining valve, and the first valve core assembly 3 formed by the three components can be used for controlling the air flow in the first valve chamber, and further controlling the connection or the disconnection of the first air port 5 and the second air port 6, thereby achieving the technical effect of controlling the on-off of the air flow by the position-maintaining valve.
Further, the second spool assembly 4 includes: a piston 41 and a second return spring 42 for returning the piston 41 after movement; the piston 41 is arranged in the second valve cavity in a sliding mode, and one end of the piston 41 is abutted to the ejector rod 32; the second return spring 42 is sleeved on the piston 41, and the second return spring 42 is abutted against the inner wall of the second valve cavity.
In this embodiment, the second valve spool assembly 4 composed of the piston 41 and the second return spring 42 can control the on/off of the air inlet 7, and when the air source pressure input at the air inlet 7 is greater than the superimposed elastic force of the first return spring 33 and the second return spring 42, the piston 41 can be pushed open and the air source airflow can enter the first valve chamber and the second valve chamber, so as to achieve the on state of the position retaining valve, otherwise, the on state of the position retaining valve is the off state of the position retaining valve.
Further, the first air port 5 is an internal thread air port; the second air port 6 is an external thread air port.
In this embodiment, the inner ring of the first air port 5 is provided with threads on its surface, and the outer ring of the second air port 6 is provided with threads on its surface, so that when the output pipeline of the external pneumatic device is connected through the internal thread port and the external thread port, the first valve body 1 can be more stable and reliable when connected with the external pipeline in a threaded connection manner.
Furthermore, the aperture of the first air port 5 is 18 mm-19 mm. The aperture of the second air port 6 is 18 mm-19 mm.
In this embodiment, the apertures of the first air port 5 and the second air port 6 are both 18 mm-19 mm, and the apertures of the first air port and the second air port are larger than the aperture of the air hole of the general valve, so that when the position-keeping valve is in operation, a larger flow of air can pass through the first valve cavity and the second valve cavity, and then the action of the peripheral equipment after the air flow is output by the position-keeping valve is more rapid and powerful, and the working efficiency of the peripheral equipment is ensured.
Further, the first valve body 1 and the second valve body 2 are both metal valve bodies.
In this embodiment, the first valve body 1 and the second valve body 2 are both metal valve bodies, and have small size, small occupied space and longer service life.
Further, a sealing ring for improving the airtightness of the device is provided at the joint of the first valve body 1 and the second valve body 2. The sealing ring is a rubber sealing ring.
In this embodiment, the sealing washer adopts rubber seal, and rubber seal installs in the junction of first valve body 1 and second valve body 2, can strengthen the sealed effect after first valve body 1 and second valve body 2 are connected, prevents that the valve during operation from taking place the gas leakage phenomenon to guarantee the work efficiency of position-keeping valve.
The utility model discloses a position valve is protected to gas accuse gas lock has the easy loading and unloading advantage of being convenient for maintenance of split type structure.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that modifications and embellishments within the scope of the present disclosure may be made by those skilled in the art without departing from the principles of the present disclosure.
Claims (9)
1. The utility model provides a gas accuse airlock position protection valve which characterized in that includes: a first valve body and a second valve body; the first valve body is detachably connected with the second valve body;
a first valve cavity is formed in the first valve body; a second valve cavity is formed in the second valve body; the first valve chamber is communicated with the second valve chamber; a first valve core assembly is movably arranged in the first valve cavity; a second valve core assembly is movably arranged in the second valve cavity; the first valve core assembly is abutted with the second valve core assembly;
the first valve body is provided with a first air port and a second air port which are used for connecting an external output pipeline; the second valve body is provided with an air inlet used for connecting an external input air source and at least one exhaust port used for rapid exhaust; the first air port and the second air port are communicated with the first valve cavity; the air inlet and the air outlet are both communicated with the second valve cavity.
2. The pneumatic latching position valve of claim 1, wherein the first spool assembly comprises: the valve core, a mandril for driving the valve core to move in the first valve cavity and a first return spring for returning the valve core after moving;
the valve core is arranged on the ejector rod; the ejector rod is arranged in the first valve cavity in a sliding mode, and one end of the ejector rod is abutted to the second valve core assembly; the first reset spring is sleeved on the ejector rod; one end of the first return spring is abutted against the inner wall of the first valve cavity, and the other end of the first return spring is abutted against the valve core.
3. An air control air lock position retaining valve according to claim 2, wherein the second spool assembly comprises: the piston and the second return spring are used for returning the piston after moving; the piston is arranged in the second valve cavity in a sliding mode, and one end of the piston is abutted to the ejector rod; the second return spring is sleeved on the piston, and the second return spring is abutted to the inner wall of the second valve cavity.
4. The pneumatic control air lock position retaining valve according to claim 1, wherein the first air port is an internal thread air port; the second air port is an external thread air port.
5. The air control air lock position retaining valve according to claim 4, wherein the aperture of the first air port is 18 mm-19 mm.
6. The pneumatic control air lock position retaining valve according to claim 4, wherein the aperture of the second air port is 18-19 mm.
7. The pneumatic control air-lock position-keeping valve of claim 1, wherein the first valve body and the second valve body are both metal valve bodies.
8. The pneumatic control air lock position retaining valve according to claim 1, wherein a sealing ring for improving the air tightness of the device is arranged at the joint of the first valve body and the second valve body.
9. The pneumatic control air lock position retaining valve according to claim 8, wherein the sealing ring is a rubber sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221697039.XU CN217519322U (en) | 2022-07-01 | 2022-07-01 | Position-keeping valve of pneumatic control air lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221697039.XU CN217519322U (en) | 2022-07-01 | 2022-07-01 | Position-keeping valve of pneumatic control air lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217519322U true CN217519322U (en) | 2022-09-30 |
Family
ID=83393412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221697039.XU Active CN217519322U (en) | 2022-07-01 | 2022-07-01 | Position-keeping valve of pneumatic control air lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217519322U (en) |
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2022
- 2022-07-01 CN CN202221697039.XU patent/CN217519322U/en active Active
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