CN209818797U - Pneumatic combination valve with plane positioning structure - Google Patents
Pneumatic combination valve with plane positioning structure Download PDFInfo
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- CN209818797U CN209818797U CN201920724392.4U CN201920724392U CN209818797U CN 209818797 U CN209818797 U CN 209818797U CN 201920724392 U CN201920724392 U CN 201920724392U CN 209818797 U CN209818797 U CN 209818797U
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Abstract
The utility model relates to a pneumatic combination valve with a plane positioning structure, which comprises a lower valve body, an upper valve body arranged above the lower valve body and a collecting plate arranged above the upper valve body; the upper valve body is provided with a stepped through hole with a small end facing the gas distribution port, and a valve rod is arranged in the stepped through hole. The utility model forms a plane positioning structure by concentrically arranging the annular pressing sheet relative to the valve rod, thereby realizing plane centering stress, preventing the valve rod from shaking in the ascending or descending process, and ensuring stable and reliable operation and service life of the combined valve; in addition, the valve block further limits the rocking of valve rod through with locating the constant head tank cooperation on the valve body to further guarantee stable, the reliable operation and the life of combination valve.
Description
Technical Field
The utility model relates to a miniature solenoid valve, in particular to a pneumatic combination valve with a plane positioning structure for an oxygen generator.
Background
Pneumatic is that compressed air is used as a power source to drive a machine to complete stretching or rotating actions. Because the characteristic of compressibility of air is utilized, the air is sucked for compression and storage, the air has elasticity like a spring, and then the direction of the air is controlled by the control element to drive the execution element to rotate and stretch. The air sucked from the atmosphere can be discharged into the atmosphere, no chemical reaction can be generated, no component polluting the air can be consumed, and in addition, the viscosity of the gas is smaller than that of the liquid, so the flowing speed is high, and the environment is protected.
The valve is an important component of a pneumatic system, and is usually controlled by using a solenoid valve, and in many cases, the solenoid valve is used as a pilot valve and is matched with other valve elements to control the pneumatic system.
A combination valve is a valve with a specific function, which is formed by combining a plurality of parts, and is also common in pneumatic systems. The service life, reliability and the like of the combined valve are important indexes for measuring the quality of the combined valve, and are problems which must be faced by the industry. For example, a combination valve that can be used to oxygenerator or nitrogen generator comprises lower valve body, upper valve body and cylinder manifold, and the valve rod of locating inside the upper valve body easily produces in the work and rocks, has influenced reliability and the life of valve.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a pneumatic combination valve with plane location structure. The utility model discloses a pneumatic combination valve with plane location structure structural design is reasonable, and operation process reliability is high, long service life.
The utility model discloses a one of them technical scheme: the pneumatic combination valve with the plane positioning structure comprises a lower valve body, an upper valve body arranged above the lower valve body and a confluence plate arranged above the upper valve body; the side part of the lower valve body is provided with an air port A which is communicated with an air distribution port arranged at the top of the lower valve body through an air flow channel arranged in the lower valve body; correspondingly, the side part of the lower valve body is also provided with a gas port B communicated with the gas distribution port; the upper valve body is provided with a stepped through hole with the small end facing the gas distribution port, a valve rod is arranged in the stepped through hole, and the upper end and the lower end of the valve rod are respectively connected with an upper valve plate and a lower valve plate; correspondingly, an upper positioning groove and a lower positioning groove which are matched with the upper valve plate and the lower valve plate are arranged on the upper valve body; the side part of the upper valve body is provided with a C air port communicated with the stepped through hole; valve plate vent holes are uniformly distributed on the lower valve plate, so that the gas port B is communicated with the stepped through hole when the lower valve plate descends to be matched with the gas distribution port; a spring with the top matched with the valve rod is arranged below the lower valve plate; an annular pressing sheet is concentrically arranged above the upper valve plate; the upper valve plate and the lower valve plate have the same structure, and a sealing sheet matched with the stepped through hole is arranged above the annular pressing sheet; a pair of D air ports and E air ports which are respectively used for connecting the upper air outlet holes and the lower air outlet holes of the electromagnetic valve are arranged on the bus board above the stepped through holes; the D air port is a through hole concentrically arranged with the stepped through hole, and the E air port is communicated with the A air port through an air path.
Compared with the prior art, the utility model has the advantages that the annular pressing sheet is concentrically arranged between the upper valve sheet and the sealing sheet relative to the valve rod to form a plane positioning structure, so that plane centering stress is realized, the valve rod is prevented from shaking in the ascending or descending process, and the stable and reliable operation and the service life of the combined valve are ensured; in addition, go up valve block and lower valve block through with locate last constant head tank and the constant head tank cooperation down on the valve body, further restrict rocking of valve rod to further guarantee stable, the reliable operation and the life of combination valve.
Preferably, the number of the gas distribution ports is two, and the gas distribution ports are arranged side by side. In this case, the structure can be ensured to be compact, and the device has higher working efficiency and wider application range compared with the design with only a single distribution port A.
Preferably, the air ports A, B and C are provided with internal threads for connecting an external air pipe. The external air pipe is connected with the valve body through the screw pair, so that the operation is simple and convenient, the implementation is easy, and the reliability is high.
The utility model discloses an another technical scheme: the pneumatic combination valve with the plane positioning structure comprises a lower valve body, an upper valve body arranged above the lower valve body and a confluence plate arranged above the upper valve body; the side part of the lower valve body is provided with an air port A which is communicated with an air distribution port arranged at the top of the lower valve body through an air flow channel arranged in the lower valve body; correspondingly, the side part of the lower valve body is also provided with a gas port B communicated with the gas distribution port; a stepped through hole with the small end facing the gas distribution port is formed in the upper valve body, and a valve rod is arranged in the stepped through hole; the lower end of the valve rod is connected with a lower valve plate; correspondingly, a lower positioning groove matched with the lower valve plate is formed in the upper valve body; the upper end of the valve rod is sequentially provided with an annular pressing sheet and a sealing sheet matched with the stepped through hole; the side part of the upper valve body is provided with a C air port communicated with the stepped through hole; valve plate vent holes are uniformly distributed on the lower valve plate, so that the gas port B is communicated with the stepped through hole when the lower valve plate descends to be matched with the gas distribution port; a spring with the top matched with the valve rod is arranged below the lower valve plate; a pair of D air ports and E air ports which are respectively used for connecting the upper air outlet holes and the lower air outlet holes of the electromagnetic valve are arranged on the bus board above the stepped through holes; the D air port is a through hole concentrically arranged with the stepped through hole, and the E air port is communicated with the A air port through an air path.
Similarly, compared with the prior art, the utility model has the advantages that the annular pressing sheet is concentrically arranged below the sealing sheet relative to the valve rod to form a plane positioning structure, so that plane centering stress is realized, the valve rod is prevented from shaking in the ascending or descending process, and the stable and reliable operation and the service life of the combined valve are ensured; in addition, the lower valve block further limits the rocking of the valve rod through cooperating with the lower locating slot arranged on the upper valve body, thereby further ensuring the stable and reliable operation and the service life of the combined valve.
Preferably, the annular pressing sheet and the sealing sheet are fixed through a nut in threaded fit with the top of the valve rod. The structure is easy to manufacture and low in production cost.
Drawings
Fig. 1 is a schematic structural diagram of a pneumatic combination valve with a planar positioning structure according to embodiment 1 of the present invention;
FIG. 2 is a front view of the pneumatic combination valve of FIG. 1 with a planar detent arrangement;
FIG. 3 is a left side view of the pneumatic combination valve of FIG. 1 with a flat detent arrangement;
FIG. 4 is a top view of the pneumatic combination valve of FIG. 1 with a planar detent arrangement;
FIG. 5 is a sectional view taken along line A of FIG. 4;
FIG. 6 is a schematic structural view of the lower valve body of FIG. 1;
FIG. 7 is a schematic structural view of the upper valve body of FIG. 1;
fig. 8 is a structural sectional view of a pneumatic combination valve having a planar positioning structure according to embodiment 2 of the present invention;
the labels in the figures are: 1-lower valve body, 11-A gas port, 12-gas distribution port, 13-B gas port; 2-upper valve body, 21-stepped through hole, 22-C air port, 23-lower positioning groove and 24-upper positioning groove; 3-manifold, 31-D port, 32-E port; 4-valve rod, 5-upper valve plate; 6-lower valve plate, 61-valve plate vent hole; 7-annular pressing sheet, 8-sealing sheet, 9-spring and 10-nut.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments (examples), but the invention is not limited thereto.
Example 1:
referring to fig. 1 to 7, the pneumatic combination valve with a planar positioning structure includes a lower valve body 1, an upper valve body 2 disposed above the lower valve body 1, and a bus plate 3 disposed above the upper valve body 2; the side part of the lower valve body 1 is provided with an A gas port 11, and the A gas port 11 is communicated with a gas distribution port 12 arranged at the top of the lower valve body 1 through a gas flow channel arranged in the lower valve body 1; correspondingly, a gas port B13 communicated with the gas distribution port 12 is also arranged on the side part of the lower valve body 1; a stepped through hole 21 with the small end facing the gas distribution port 12 is formed in the upper valve body 2, a valve rod 4 is arranged in the stepped through hole 21, and the upper end and the lower end of the valve rod 4 are respectively connected with an upper valve plate 5 and a lower valve plate 6; correspondingly, an upper positioning groove 24 and a lower positioning groove 23 which are matched with the upper valve plate 5 and the lower valve plate 6 are arranged on the upper valve body 2; the side part of the upper valve body 2 is provided with a C air port 22 communicated with the stepped through hole 21; the lower valve plate 6 is provided with valve plate vent holes 61 which are uniformly distributed, so that when the lower valve plate 6 descends and is matched with the gas distribution port 12, the gas port B13 is communicated with the stepped through hole 21; a spring 9 with the top matched with the valve rod 4 is arranged below the lower valve plate 6; an annular pressing sheet 7 is concentrically arranged above the upper valve plate 5; the upper valve plate 5 and the lower valve plate 6 have the same structure, and a sealing sheet 8 matched with the stepped through hole 21 is arranged above the annular pressing sheet 7; a pair of D air ports 31 and E air ports 32 which are respectively used for connecting an upper air inlet and an air outlet of the electromagnetic valve are arranged on the bus plate 3 above the stepped through hole 21; the D air port 31 is a through hole concentrically arranged with the stepped through hole 21, and the E air port 32 is communicated with the a air port 11 through an air passage. The number of the gas distribution ports 12 is two, and the ports are arranged side by side (the gas distribution ports 12 have two, so that the B-ports and the stepped through holes 21 also have two). And internal threads are arranged on the air port A11, the air port B13 and the air port C22 and are used for connecting an external air pipe.
Example 2:
referring to fig. 8, the pneumatic combination valve with a planar positioning structure includes a lower valve body 1, an upper valve body 2 disposed above the lower valve body 1, and a bus plate 3 disposed above the upper valve body 2; the side part of the lower valve body 1 is provided with an A gas port 11, and the A gas port 11 is communicated with a gas distribution port 12 arranged at the top of the lower valve body 1 through a gas flow channel arranged in the lower valve body 1; correspondingly, a gas port B13 communicated with the gas distribution port 12 is also arranged on the side part of the lower valve body 1; a stepped through hole 21 with the small end facing the gas distribution port 12 is formed in the upper valve body 2, and a valve rod 4 is arranged in the stepped through hole 21; the lower end of the valve rod 4 is connected with a lower valve plate 6; correspondingly, a lower positioning groove 23 matched with the lower valve plate 6 is arranged on the upper valve body 2; the upper end of the valve rod 4 is sequentially provided with an annular pressing sheet 7 and a sealing sheet 8 matched with the stepped through hole 21; the side part of the upper valve body 2 is provided with a C air port 22 communicated with the stepped through hole 21; the lower valve plate 6 is provided with valve plate vent holes 61 which are uniformly distributed, so that when the lower valve plate 6 descends and is matched with the gas distribution port 12, the gas port B13 is communicated with the stepped through hole 21; a spring 9 with the top matched with the valve rod 4 is arranged below the lower valve plate 6; a pair of D air ports 31 and E air ports 32 which are respectively used for connecting an upper air inlet and an air outlet of the electromagnetic valve are arranged on the bus plate 3 above the stepped through hole 21; the D air port 31 is a through hole concentrically arranged with the stepped through hole 21, and the E air port 32 is communicated with the a air port 11 through an air passage. The annular pressing sheet 7 and the sealing sheet 8 are fixed through a nut 10 which is in threaded fit with the top of the valve rod 4.
The combination valves of the above embodiments 1 and 2 can be used in oxygen generators or nitrogen generators, but can also be used in other occasions. Taking the application of the combination valve of embodiment 1 in an oxygen generator as an example, during operation, a pair of electromagnetic valves (normally closed type pilot valves) are installed on the manifold plate 3, the a air port 11 is used as an air inlet and is connected with an air source, the B air port 13 is connected with a molecular sieve, during oxygen generation, the electromagnetic valves are not powered on, the valve rod 4 presses the lower valve plate 6 on the step through hole 21 under the action of the spring 9 to be sealed, high-pressure air enters the molecular sieve through the a air port 11, the air distribution port 12 and the B air port 13 in sequence, and nitrogen in the air is adsorbed by the molecular sieve, so that high-concentration oxygen flows out. When oxygen generation needs to be stopped, the electromagnetic valve is electrified, the valve rod 4 moves downwards under the pressure of the annular pressing sheet 7, the lower valve plate 6 is pressed on the gas distribution port 12 to seal the gas distribution port, the stepped through hole 21 is communicated with the gas port B13, and nitrogen adsorbed in the molecular sieve is discharged through the gas port B13, the stepped through hole 21 and the gas port C22 in sequence, so that the molecular sieve can be reused for a long time. (when nitrogen generation is required, the nitrogen gas discharged from the C port 22 is collected)
The above general description of the invention and the description of its specific embodiments in this application should not be construed as limiting the scope of the invention. According to the disclosure of the present invention, those skilled in the art can add, reduce or combine the technical features disclosed in the general description and/or the specific embodiments including the embodiments to form other technical solutions within the protection scope of the present invention without departing from the constituent elements of the present invention.
Claims (5)
1. Pneumatic combination valve with plane location structure, its characterized in that: the valve comprises a lower valve body (1), an upper valve body (2) arranged above the lower valve body (1), and a bus bar (3) arranged above the upper valve body (2);
the side part of the lower valve body (1) is provided with an air port A (11), and the air port A (11) is communicated with an air distribution port (12) arranged at the top of the lower valve body (1) through an air flow channel arranged in the lower valve body (1); correspondingly, a gas port B (13) communicated with the gas distribution port (12) is also arranged on the side part of the lower valve body (1);
a stepped through hole (21) with the small end facing the gas distribution port (12) is formed in the upper valve body (2), a valve rod (4) is arranged in the stepped through hole (21), and the upper end and the lower end of the valve rod (4) are respectively connected with an upper valve plate (5) and a lower valve plate (6); correspondingly, an upper positioning groove (24) and a lower positioning groove (23) which are matched with the upper valve plate (5) and the lower valve plate (6) are arranged on the upper valve body (2); a C air port (22) communicated with the stepped through hole (21) is formed in the side part of the upper valve body (2);
the lower valve plate (6) is provided with valve plate vent holes (61) which are uniformly distributed, so that when the lower valve plate (6) descends to be matched with the gas distribution port (12), the gas port B (13) is communicated with the stepped through hole (21); a spring (9) with the top matched with the valve rod (4) is arranged below the lower valve plate (6);
an annular pressing sheet (7) is concentrically arranged above the upper valve sheet (5); the upper valve plate (5) and the lower valve plate (6) have the same structure, and a sealing sheet (8) matched with the stepped through hole (21) is arranged above the annular pressing sheet (7);
a pair of D air ports (31) and E air ports (32) which are respectively used for connecting an upper air inlet and an air outlet of the electromagnetic valve are arranged above the stepped through hole (21) on the confluence plate (3); the D air port (31) is a through hole concentrically arranged with the stepped through hole (21), and the E air port (32) is communicated with the A air port (11) through an air path.
2. A pneumatic combination valve having a planar positioning structure as defined in claim 1, wherein: the number of the gas distribution openings (12) is two, and the gas distribution openings are arranged side by side.
3. A pneumatic combination valve having a planar positioning structure as defined in claim 1, wherein: internal threads are arranged on the air port A (11), the air port B (13) and the air port C (22) and are used for connecting an external air pipe.
4. Pneumatic combination valve with plane location structure, its characterized in that: the valve comprises a lower valve body (1), an upper valve body (2) arranged above the lower valve body (1), and a bus bar (3) arranged above the upper valve body (2);
the side part of the lower valve body (1) is provided with an air port A (11), and the air port A (11) is communicated with an air distribution port (12) arranged at the top of the lower valve body (1) through an air flow channel arranged in the lower valve body (1); correspondingly, a gas port B (13) communicated with the gas distribution port (12) is also arranged on the side part of the lower valve body (1);
a stepped through hole (21) with the small end facing the gas distribution port (12) is formed in the upper valve body (2), and a valve rod (4) is arranged in the stepped through hole (21); the lower end of the valve rod (4) is connected with a lower valve plate (6); correspondingly, a lower positioning groove (23) matched with the lower valve plate (6) is formed in the upper valve body (2); the upper end of the valve rod (4) is sequentially provided with an annular pressing sheet (7) and a sealing sheet (8) matched with the stepped through hole (21);
a C air port (22) communicated with the stepped through hole (21) is formed in the side part of the upper valve body (2);
the lower valve plate (6) is provided with valve plate vent holes (61) which are uniformly distributed, so that when the lower valve plate (6) descends to be matched with the gas distribution port (12), the gas port B (13) is communicated with the stepped through hole (21); a spring (9) with the top matched with the valve rod (4) is arranged below the lower valve plate (6);
a pair of D air ports (31) and E air ports (32) which are respectively used for connecting an upper air inlet and an air outlet of the electromagnetic valve are arranged above the stepped through hole (21) on the confluence plate (3); the D air port (31) is a through hole concentrically arranged with the stepped through hole (21), and the E air port (32) is communicated with the A air port (11) through an air path.
5. A pneumatic combination valve having a planar detent arrangement as claimed in claim 4, wherein: the annular pressing sheet (7) and the sealing sheet (8) are fixed through a nut (10) in threaded fit with the top of the valve rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920724392.4U CN209818797U (en) | 2019-05-20 | 2019-05-20 | Pneumatic combination valve with plane positioning structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920724392.4U CN209818797U (en) | 2019-05-20 | 2019-05-20 | Pneumatic combination valve with plane positioning structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209818797U true CN209818797U (en) | 2019-12-20 |
Family
ID=68883710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920724392.4U Expired - Fee Related CN209818797U (en) | 2019-05-20 | 2019-05-20 | Pneumatic combination valve with plane positioning structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209818797U (en) |
-
2019
- 2019-05-20 CN CN201920724392.4U patent/CN209818797U/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 |
Granted publication date: 20191220 |
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| CF01 | Termination of patent right due to non-payment of annual fee |