CN210106115U - Normally closed air inlet valve for vacuum pump - Google Patents
Normally closed air inlet valve for vacuum pump Download PDFInfo
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- CN210106115U CN210106115U CN201920639290.2U CN201920639290U CN210106115U CN 210106115 U CN210106115 U CN 210106115U CN 201920639290 U CN201920639290 U CN 201920639290U CN 210106115 U CN210106115 U CN 210106115U
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- vacuum pump
- base
- valve
- fixed
- normally closed
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Abstract
The utility model discloses a normally closed admission valve for vacuum pump, the on-line screen storage device comprises a base, the top cap for the vacuum pump, control channel has been seted up at the top surface center of top cap for the vacuum pump, be provided with top surface open-ended control chamber at the center of base, be provided with the cylinder block in the control intracavity, top at the cylinder block is fixed with the cylinder head, be provided with the shape of falling T piston in the control intracavity, be fixed with reset spring between the diapire of the shape of falling T piston bottom surface and cylinder block, top at control channel is provided with the valve piece body, be fixed with valve block connection projection at the montant top surface center of the shape of falling T piston, the diameter that the projection was connected to the valve block is less than the montant diameter of the shape of falling T piston, the montant of the shape piston passes cylinder head and valve block connection projection and. The utility model discloses a structure sets up rationally, and it not only can effectually realize the admission control operation, can improve the reliable and stable nature of using moreover, and the suitability is strong and the practicality is good.
Description
Technical Field
The utility model belongs to the technical field of the vacuum pump corollary equipment, concretely relates to normally closed admission valve for vacuum pump.
Background
The vacuum pump is a common mechanical structure, and its admission valve structure that needs to correspond in the use of vacuum pump, and the admission valve structure of traditional technique is conventional structure, and its user demand that can satisfy the general condition, but its stability in use is comparatively limited, influences the reliability of control, is difficult to satisfy the demand in market.
Disclosure of Invention
The utility model aims at providing a structure sets up reasonable and the suitability is strong a normally closed admission valve for vacuum pump.
The technical scheme for realizing the purpose of the utility model is that the normally closed air inlet valve for the vacuum pump comprises a base and a top cover for the vacuum pump arranged on the top of the base, the base and the top cover for the vacuum pump are fixed by screws, a control channel is arranged at the top surface center of the top cover for the vacuum pump, a control cavity with an opening on the top surface is arranged at the center of the base, an air cylinder body is arranged in the control cavity, an air cylinder cover is fixed on the top of the air cylinder body, the air cylinder cover is arranged at the joint of the base and the top cover for the vacuum pump, an inverted T-shaped piston is arranged in the control cavity, a reset spring is fixed between the bottom surface of the inverted T-shaped piston and the bottom wall of the air cylinder body, a valve plate body is arranged at the top of the control channel, a valve plate connecting convex column is fixed at the center of the top surface of a vertical, the cylinder cover is arranged on the base, the cylinder cover is arranged on the cylinder cover, the valve block is connected with the valve block body through the valve block connecting convex column, the bottom surface of the control channel is in a horn-shaped arrangement, the top surface of the valve block body is in a round table-shaped arrangement, the side surface of the valve block body is movably attached to and pressed on the horn-shaped inner wall of the control channel, and the air guide pipe connected with the cylinder body is fixed on the side wall of the base.
The cylinder body is characterized in that a buffering abutting hole is formed in the top wall of the base, a buffering abutting rod is arranged in the buffering abutting hole, a buffering spring is fixed between the buffering abutting rod and the bottom wall of the buffering abutting hole, and the lower surface of the top of the side wall of the cylinder body is in compression joint with the buffering abutting rod.
And a sealing ring gasket is arranged at the joint of the base and the top cover for the vacuum pump.
And a rubber abutting sealing layer is adhered to the circular truncated cone-shaped surface of the valve sheet body.
The utility model discloses has positive effect: the utility model discloses a structure sets up rationally, the simple operation, it not only can effectual realization admission control operation, can improve the reliable and stable nature of using moreover, and the suitability is strong and the practicality is good.
Drawings
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the following specific embodiments, taken in conjunction with the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
(example 1)
Fig. 1 shows a specific embodiment of the present invention, wherein fig. 1 is a schematic structural diagram of the present invention.
Referring to fig. 1, a normally closed intake valve for a vacuum pump comprises a base 1 and a top cover 2 for the vacuum pump arranged on the top of the base, the base and the top cover for the vacuum pump are fixed through screws 3, a control channel 4 is arranged at the top center of the top cover for the vacuum pump, a control cavity 5 with an open top surface is arranged at the center of the base, a cylinder block 6 is arranged in the control cavity, a cylinder cover 7 is fixed on the top of the cylinder block, the cylinder cover is arranged at the joint of the base and the top cover for the vacuum pump, an inverted T-shaped piston 8 is arranged in the control cavity, a return spring 9 is fixed between the bottom surface of the inverted T-shaped piston and the bottom wall of the cylinder block, a valve block body 10 is arranged at the top of the control channel, a valve block connecting convex column 11 is fixed at the center of the top surface of a vertical rod of the inverted T-shaped piston, and, the vertical rod of the inverted T-shaped piston penetrates through the cylinder cover, the valve plate connecting convex column is connected with the valve plate body, the bottom surface of the control channel is in a horn-shaped 12 arrangement, the top surface of the valve plate body is in a round table-shaped 13 arrangement, the side surface of the valve plate body is movably attached to and pressed on the horn-shaped inner wall of the control channel, and an air guide pipe 14 connected with the cylinder body is fixed on the side wall of the base.
The top wall of the base is provided with a buffer abutting hole 15, a buffer abutting rod 16 is arranged in the buffer abutting hole, a buffer spring 17 is fixed between the buffer abutting rod and the bottom wall of the buffer abutting hole, and the lower surface of the top of the side wall of the cylinder body is in compression joint with the buffer abutting rod.
And a sealing gasket 18 is arranged at the joint of the base and the top cover for the vacuum pump.
And a rubber pressure sealing layer 19 is adhered to the circular truncated cone-shaped surface of the valve sheet body.
The utility model discloses a structure sets up rationally, the simple operation, it not only can effectual realization admission control operation, can improve the reliable and stable nature of using moreover, and the suitability is strong and the practicality is good.
The standard parts used in the present embodiment may be purchased directly from the market, and the non-standard structural components described in the specification and drawings may be obtained by processing without any doubt according to the common general knowledge in the art, and the connection manner of the respective parts is by the conventional means developed in the art, and the machines, parts and equipment are of the conventional type in the art, so that the detailed description thereof is omitted.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And such obvious changes and modifications which fall within the spirit of the invention are deemed to be covered by the present invention.
Claims (4)
1. The utility model provides a normally closed admission valve for vacuum pump, includes the base, sets up the top cap for the vacuum pump at base top, the base passes through the fix with screw with the top cap for the vacuum pump, its characterized in that: the control device comprises a top cover for the vacuum pump, a control channel, a base, a cylinder body, a cylinder cover, a valve plate connecting convex column, a return spring, a valve plate connecting convex column, a valve plate body and a valve plate, wherein the top surface center of the top cover for the vacuum pump is provided with the control channel, the center of the base is provided with a control cavity with an opening on the top surface, the cylinder body is arranged in the control cavity, the top surface of the cylinder body is fixed with the cylinder cover, the cylinder cover is fixed at the top of the cylinder body, the cylinder cover is fixed at the joint of the base and the top cover for the vacuum pump, the inverted T-shaped piston is fixed in the control cavity, the diameter of the valve plate connecting convex column is smaller than that of the inverted T-shaped piston, the vertical rod of, the side face of the valve sheet body is movably attached to and pressed on the horn-shaped inner wall of the control channel, and an air guide pipe connected with the cylinder body is fixed on the side wall of the base.
2. A normally closed intake valve for a vacuum pump as defined in claim 1, wherein: the cylinder body is characterized in that a buffering abutting hole is formed in the top wall of the base, a buffering abutting rod is arranged in the buffering abutting hole, a buffering spring is fixed between the buffering abutting rod and the bottom wall of the buffering abutting hole, and the lower surface of the top of the side wall of the cylinder body is in compression joint with the buffering abutting rod.
3. A normally closed intake valve for a vacuum pump as defined in claim 2, wherein: and a sealing ring gasket is arranged at the joint of the base and the top cover for the vacuum pump.
4. A normally closed intake valve for a vacuum pump as defined in claim 3, wherein: and a rubber abutting sealing layer is adhered to the circular truncated cone-shaped surface of the valve sheet body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920639290.2U CN210106115U (en) | 2019-05-07 | 2019-05-07 | Normally closed air inlet valve for vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920639290.2U CN210106115U (en) | 2019-05-07 | 2019-05-07 | Normally closed air inlet valve for vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210106115U true CN210106115U (en) | 2020-02-21 |
Family
ID=69539030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920639290.2U Active CN210106115U (en) | 2019-05-07 | 2019-05-07 | Normally closed air inlet valve for vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210106115U (en) |
-
2019
- 2019-05-07 CN CN201920639290.2U patent/CN210106115U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | "change of name, title or address" | ||
| CP03 | "change of name, title or address" |
Address after: 402360 Shuangqiao Economic Development Zone Industrial Park, Dazu District, Chongqing Patentee after: Chongqing Kaishan Fluid Machinery Co.,Ltd. Address before: 400900 Shuangqiao Economic Development Zone Industrial Park, Dazu District, Chongqing Patentee before: CHONGQING KAISHAN COMPRESSOR Co.,Ltd. |