CN212657289U - Vacuum pump protection valve - Google Patents
Vacuum pump protection valve Download PDFInfo
- Publication number
- CN212657289U CN212657289U CN202021795832.4U CN202021795832U CN212657289U CN 212657289 U CN212657289 U CN 212657289U CN 202021795832 U CN202021795832 U CN 202021795832U CN 212657289 U CN212657289 U CN 212657289U
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- valve
- vacuum pump
- valve body
- valve core
- pump protection
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Abstract
The utility model relates to a vacuum pump protection valve, valve body and valve gap including column hollow structure, valve body and valve gap adopt to cup joint the connection, the valve body is kept away from the bottom surface center of valve gap and has been seted up the interface that admits air, the evacuation interface has been seted up to the side of valve body, the one end that the valve body was kept away from to the valve gap is equipped with the interface that diffuses, the inside interface that admits air of valve body is equipped with the case toward the lining cover, the case is cylindric and is close to the one end of valve gap and is equipped with cylindric sprue, the inside case of valve gap is equipped with the case baffle toward the lining, the case baffle is cylindric design, the case baffle is equipped with cylindric dog on the circular. The vacuum pump protection valve is small in size, high in pressure resistance, simple in structure, reliable in action, long in service life and wide in application range.
Description
Technical Field
The utility model relates to a gas pipeline field, specially adapted high-pressure gas steel bottle fills dress field, concretely relates to vacuum pump protection valve.
Background
With the development of science and technology, the requirements on the automation degree and the safety of factories are higher and higher, and particularly in the field of high-pressure gas cylinder filling. With the rapid development of the filling technology, an integrated design of a filling control system and a steel cylinder vacuum pumping system begins to appear.
The high-pressure vacuum pump baffle valve on the market at present has the following problems: the compression strength is low, and the application of filling the steel cylinder cannot be met; the structure is complex, the pneumatic or electric valve is adopted, and the purchase cost is high; the material can not completely meet the requirement of filling the steel cylinder, for example, the requirement of GB/T50030-2013 oxygen station design Specification, the material of the oxygen filling pipeline is copper and copper alloy or nickel and nickel-based alloy, and the material of the vacuum pump baffle valve in the market is mostly carbon steel or stainless steel.
Based on the problems, no domestic vacuum pump baffle valve which can meet the application of the system exists in the market, and a new product is urgently needed to fill the domestic blank of the high-pressure vacuum pump protection valve.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to prior art's not enough, provide a vacuum pump protection valve to realize that the high-pressure gas steel bottle fills the automation and the intellectuality in dress field.
The utility model discloses a realize through following technical scheme:
the valve body and the valve cover are of columnar structures and are designed in a hollow mode, the valve body and the valve cover are connected in a sleeved mode, an air inlet connector is arranged at the center of the bottom face, away from the valve cover, of the valve body, an vacuumizing connector is arranged on the side face of the valve body, a diffusing connector is arranged at one end, away from the valve body, of the valve cover, a plurality of through holes are formed in the periphery of the vacuumizing connector, the air inlet connector and the diffusing connector, a valve core is sleeved inwards at the inner air inlet connector of the valve body, a cylindrical blocking block is arranged at one end, close to the valve cover, of the valve core, a valve core baffle is arranged inwards in the valve core of the valve cover, the valve core baffle is of cylindrical design, a cylindrical stop block is arranged on the circular bottom face, close to the valve core.
Preferably, the cylindrical plugging block is sleeved with a valve core sealing piece, and the valve core sealing piece is positioned at the position where the valve body is contacted with the valve cover.
Preferably, the valve core is sleeved with two second sealing rings, and the vacuumizing interface is positioned between the two sealing rings.
Preferably, the valve core is of a hollow design, and a plurality of through holes are formed in the valve core.
Preferably, the valve core baffle is provided with a plurality of through holes.
Preferably, the cross-sectional area of the cylindrical block is larger than the cross-sectional area of the cylindrical block.
Preferably, the valve core baffle is sleeved with a first sealing ring.
Preferably, the valve body is made of brass, the copper content is lower than 70%, and the valve core is made of stainless steel or nickel alloy.
The utility model has the advantages that: the vacuum pump protection valve has the advantages of small volume, high pressure resistance, simple structure, reliable action, long service life and wide application range; the valve body part is made of brass (the copper content is lower than 70%), the valve core is made of stainless steel or nickel alloy, the national standard requirements are met, and the valve is suitable for non-corrosive gas including oxygen.
Drawings
FIG. 1 is a schematic view of the external structure of the protection valve of the vacuum pump of the present invention;
FIG. 2 is an internal cross-sectional view of the vacuum pump protection valve of the present invention;
FIG. 3 is a schematic structural view of the valve body of the present invention;
fig. 4 is a schematic structural view of the valve cover of the present invention;
FIG. 5 is a schematic view of the valve cartridge, the valve cartridge sealing member and the valve cartridge baffle of the present invention;
FIG. 6 is a schematic structural view of the valve cartridge of the present invention;
FIG. 7 is a schematic structural view of the valve core baffle of the present invention;
shown in the figure:
1. the valve comprises a valve body, 2, a valve cover, 3, an air inlet interface, 4, a vacuumizing interface, 5, a diffusing interface, 6, a valve core, 7, a blocking block, 8, a valve core sealing element, 9, a valve core baffle, 10, a stop block, 11, a first sealing ring, 12 and a second sealing ring.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.
Referring to fig. 1, the vacuum pump protection valve comprises a valve body 1 and a valve cover 2, wherein the valve body 1 and the valve cover 2 are made of metal copper materials. Valve body 1 and valve gap 2 are the columnar structure, and for the cavity design, valve body 1 valve gap 2 adopts the cup joint connection, valve body 1 keeps away from the bottom surface center of valve gap 2 and has seted up inlet interface 3, evacuation interface 4 has been seted up to the side of valve body 1, valve gap 2 keeps away from the one end of valve body 1 and is equipped with diffuse interface 5, evacuation interface 4, inlet interface 3, diffuse interface 5 be equipped with a plurality of through-holes all around to make things convenient for gaseous getting rid of.
Referring to fig. 2-6, the valve element 6 is sleeved inside the internal air inlet port 3 of the valve body 1, the valve element 6 is in a cylindrical hollow design, a plurality of through holes are formed in the outer wall of the valve element 6, the valve element 6 is sleeved with two second sealing rings 12, the vacuumizing port 4 is located between the two sealing rings, a cylindrical blocking block 7 is arranged at one end, close to the valve cover 2, of the valve element 6, a valve element sealing element 8 is sleeved outside the cylindrical blocking block 7, and the valve element sealing element 8 is located at the position where the valve body 1 and the valve cover 2 are in contact.
Referring to fig. 7, a valve core baffle plate 9 is arranged inside a valve core 6 of the valve cover 2, the valve core baffle plate 9 is in a cylindrical design and is provided with a plurality of through holes, a cylindrical stop block 10 is arranged on the circular bottom surface of one end, close to the valve core 6, of the valve core baffle plate 9, and a first sealing ring 11 is sleeved outside the valve core baffle plate 9. The valve core baffle plate 9 is connected with the bleeding interface 5. The cross sections of the cylindrical block piece 7 and the cylindrical block piece 10 are the same.
The utility model discloses the theory of operation: the air inlet interface 3 of the vacuum pump protection valve is connected with a pipeline or a container which needs to be vacuumized, the vacuumizing interface 4 is connected with an air inlet of a vacuum pump, and the diffusing interface 5 is connected with a diffusing pipeline. When evacuation, if the pipeline that needs the evacuation that interface 3 that admits air connects or other container gas pressure are too big, case 6 moves to valve gap 2 end under the promotion of atmospheric pressure, make admit air interface 3 and diffuse interface 5 intercommunication, gaseous diffusing interface 5 and discharging, along with gaseous discharge pressure descends, descend to certain degree under the use of gravity, case 6 automatic whereabouts, admit air interface 3 and evacuation interface 4 intercommunication, begin to carry out the evacuation to the pipeline that needs the evacuation or other containers, thereby avoid the too high destruction that brings the vacuum pump of gas pressure, the guard action to the vacuum pump has been played.
Of course, the above description is not limited to the above examples, and technical features of the present invention that are not described in the present application may be implemented by or using the prior art, and are not described herein again; the above embodiments and drawings are only used for illustrating the technical solutions of the present invention and are not intended to limit the present invention, and the present invention has been described in detail with reference to the preferred embodiments, and those skilled in the art should understand that changes, modifications, additions or substitutions made by those skilled in the art within the spirit of the present invention should also belong to the protection scope of the claims of the present invention.
Claims (8)
1. The utility model provides a vacuum pump protection valve, includes valve body (1) and valve gap (2), its characterized in that: the valve body (1) and the valve cover (2) are of columnar structures and are designed to be hollow, the valve body (1) and the valve cover (2) are connected in a sleeved mode, an air inlet connector (3) is arranged at the center of the bottom surface, away from the valve cover (2), of the valve body (1), a vacuumizing connector (4) is arranged on the side face of the valve body (1), a diffusing connector (5) is arranged at one end, away from the valve body (1), of the valve cover (2), a plurality of through holes are formed in the peripheries of the vacuumizing connector (4), the air inlet connector (3) and the diffusing connector (5), a valve core (6) is sleeved inside the air inlet connector (3) of the valve body (1), the valve core (6) is cylindrical, a blocking block (7) is arranged at one end, close to the cylindrical valve cover (2), a valve core baffle (9) is arranged inside the valve core (6) of the valve cover (2), and, and a cylindrical stop block (10) is arranged on the circular bottom surface of one end, close to the valve core (6), of the valve core baffle plate (9), and the valve core baffle plate (9) is connected with the diffusion interface (5).
2. The vacuum pump protection valve of claim 1, wherein: and a valve core sealing piece (8) is sleeved outside the cylindrical plugging block (7), and the valve core sealing piece (8) is positioned at the position where the valve body (1) is contacted with the valve cover (2).
3. The vacuum pump protection valve of claim 1, wherein: the valve core (6) is sleeved with two second sealing rings (12), and the vacuumizing interface (4) is located between the two sealing rings.
4. The vacuum pump protection valve of claim 1, wherein: the valve core (6) is in a hollow design, and a plurality of through holes are formed in the valve core (6).
5. The vacuum pump protection valve of claim 1, wherein: the valve core baffle (9) is provided with a plurality of through holes.
6. The vacuum pump protection valve of claim 1, wherein: the cross section area of the cylindrical plugging block (7) is larger than that of the cylindrical stop block (10).
7. The vacuum pump protection valve of claim 1, wherein: and a first sealing ring (11) is sleeved outside the valve core baffle (9).
8. The vacuum pump protection valve of claim 1, wherein: the valve body (1) is made of brass, the copper content is lower than 70%, and the valve core (6) is made of stainless steel or nickel alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021795832.4U CN212657289U (en) | 2020-08-25 | 2020-08-25 | Vacuum pump protection valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021795832.4U CN212657289U (en) | 2020-08-25 | 2020-08-25 | Vacuum pump protection valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212657289U true CN212657289U (en) | 2021-03-05 |
Family
ID=74769624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021795832.4U Active CN212657289U (en) | 2020-08-25 | 2020-08-25 | Vacuum pump protection valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212657289U (en) |
-
2020
- 2020-08-25 CN CN202021795832.4U patent/CN212657289U/en active Active
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