CN217059186U - Sealing performance detection device for molecular pump vacuum tube - Google Patents
Sealing performance detection device for molecular pump vacuum tube Download PDFInfo
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- CN217059186U CN217059186U CN202220500970.8U CN202220500970U CN217059186U CN 217059186 U CN217059186 U CN 217059186U CN 202220500970 U CN202220500970 U CN 202220500970U CN 217059186 U CN217059186 U CN 217059186U
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- find time
- pipeline
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- vacuum tube
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Abstract
The utility model discloses a leakproofness detection device of molecular pump vacuum tube, include: manage to find time pipeline, connector, the piston of managing to find time, one-way pneumatic valve, connecting rod, drive actuating cylinder, powerful spring, base, manage to find time the pipeline be the sealed pipeline of cylinder, the both ends of managing to find time the pipeline are the opening, the connector rigid coupling at the front end of managing to find time the pipeline, the connector is used for connecting the one end of vacuum tube, and when using, the other end of vacuum tube adopts sealed head to carry out sealing connection, the piston sliding connection of managing to find time in the inside of managing to find time the pipeline, one-way pneumatic valve setting on managing to find time the piston, the connecting rod rigid coupling at the rear side of managing to find time the piston to find time, drive actuating cylinder rigid coupling on the base, powerful spring one end connect the flexible end of driving actuating cylinder, the other end is connected at the front end of connecting rod, the base level set up, and manage to find time the pipeline rigid coupling in the rear end of base. The utility model has the advantages of simple structure, convenient use, good use effect and the like.
Description
Technical Field
The utility model relates to a molecular pump auxiliary assembly technical field specifically is a leakproofness detection device of molecular pump vacuum tube.
Background
The molecular pump is a vacuum pump which utilizes a rotor rotating at high speed to transmit momentum to gas molecules so as to enable the gas molecules to obtain directional speed, and then the gas molecules are compressed and driven to an exhaust port and then are pumped away by a preceding stage; when the vacuum pump is used, the air in the container needs to be pumped out by means of the vacuum pipeline, the air tightness of the vacuum pipeline directly influences the vacuumizing effect, the vacuum pipeline is connected, the tightness of the vacuum pipeline not only is in the vacuum pipeline, but also needs to depend on the joint, the existing tightness detection equipment is troublesome to use, and the tightness of the joint cannot be effectively judged.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a leakproofness detection device of molecular pump vacuum tube to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above purpose, the utility model provides a following technical scheme: a tightness detection device of a molecular pump vacuum tube comprises: manage to find time pipeline, connector, the piston of managing to find time, one-way pneumatic valve, connecting rod, drive actuating cylinder, powerful spring, base, manage to find time the pipeline be the sealed pipeline of cylinder, the both ends of managing to find time the pipeline are the opening, the connector rigid coupling at the front end of managing to find time the pipeline, the connector is used for connecting the one end of vacuum tube, and when using, the other end of vacuum tube adopts sealed head to carry out sealing connection, the piston sliding connection of managing to find time in the inside of managing to find time the pipeline, one-way pneumatic valve setting on managing to find time the piston, the connecting rod rigid coupling at the rear side of managing to find time the piston to find time, drive actuating cylinder rigid coupling on the base, powerful spring one end connect the flexible end of driving actuating cylinder, the other end is connected at the front end of connecting rod, the base level set up, and manage to find time the pipeline rigid coupling in the rear end of base.
Furthermore, the one-way air valve consists of a supporting seat, an extension spring and a rubber cover, wherein the supporting seat is fixedly connected in the mounting through hole of the evacuating piston, the rubber cover is covered at the rear end of the mounting hole of the evacuating piston, one end of the extension spring is connected to the supporting seat, and the other end of the extension spring is connected to the rubber cover.
Furthermore, a plurality of mounting through holes are uniformly formed in the evacuation piston.
Furthermore, a graduated scale is marked on the base.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a tightness detection device of a molecular pump vacuum tube, when in use, one end of a vacuum pipeline to be detected is connected to a connector of an evacuation pipeline through a connecting mechanism, then a driving cylinder is used for pushing the evacuation piston to move from back to front in the evacuation pipeline, in the process, the air in the evacuation pipeline flows out through the one-way air valve, then the driving cylinder is operated to work reversely to push the evacuating piston to move from front to back in the evacuating pipeline, in the process, the one-way air valve is closed, negative pressure is generated in the evacuation pipeline at the moment, the powerful spring is also stretched to a certain length after the driving cylinder contracts to a certain degree, recording the stretched length of the strong spring through the graduated scale, observing the stretched length of the strong spring again after a period of time, and if the vacuum tube is intact, recording the stretched lengths in two times to be the same; if the vacuum tube has poor sealing performance, the stretching length recorded for the second time is increased; this equipment easy operation, owing to used connection structure in addition, also can carry out the leakproofness to the link of vacuum tube and detect, excellent in use effect.
The utility model has the advantages of simple structure, convenient use, good use effect and the like.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic structural view of the inner one-way air valve of the present invention;
in the figure: 1-evacuating the pipe; 2-a connector; 3-evacuating the piston; 4-one-way air valve; 5-a connecting rod; 6-driving a cylinder; 7-a strong spring; 8-a base; 9-a supporting seat; 10-an extension spring; 11-a rubber cover; 12-graduated scale.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
Referring to fig. 1 and 2, the present invention provides a device for detecting the sealing performance of a vacuum tube of a molecular pump, comprising: an evacuation pipeline 1, a connector 2, an evacuation piston 3, a one-way air valve 4, a connecting rod 5, a driving cylinder 6, a strong spring 7 and a base 8, the evacuation pipeline 1 is a cylindrical sealed pipeline, two ends of the evacuation pipeline 1 are provided with openings, the connector 2 is fixedly connected at the front end of the evacuation pipeline 1, the connector 2 is used for connecting one end of a vacuum tube, when in use, the other end of the vacuum tube is hermetically connected by a sealing head, the evacuation piston 3 is connected in a sliding way inside the evacuation pipeline 1, the one-way air valve 4 is arranged on the evacuating piston 3, the connecting rod 5 is fixedly connected with the rear side of the evacuating piston 3, drive 6 rigid couplings of actuating cylinder on base 8, 7 one end of powerful spring connect at the flexible end that drives actuating cylinder 6, the front end at connecting rod 5 is connected to the other end, 8 levels of base set up, and evacuate to 1 rigid coupling of pipeline in the rear end of base 8.
Furthermore, the one-way air valve 4 is composed of a supporting seat 9, an extension spring 10 and a rubber cover 11, the supporting seat 9 is fixedly connected in the installation through hole of the evacuating piston 3, the rubber cover 11 is covered at the rear end of the installation hole of the evacuating piston 3, one end of the extension spring 10 is connected on the supporting seat 9, and the other end of the extension spring is connected on the rubber cover 11.
Furthermore, a plurality of mounting through holes are uniformly formed on the evacuating piston 3.
Further, a graduated scale 12 is marked on the base 8.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A device for detecting the sealing performance of a molecular pump vacuum tube is characterized by comprising: manage to find time pipeline (1), connector (2), manage to find time piston (3), one-way pneumatic valve (4), connecting rod (5), drive actuating cylinder (6), powerful spring (7), base (8), manage to find time pipeline (1) for the sealed pipeline of cylinder, the both ends of managing to find time pipeline (1) are the opening, connector (2) rigid coupling in the front end of managing to find time pipeline (1), connector (2) are used for connecting the one end of vacuum tube, and when using, the other end of vacuum tube adopts sealed head to carry out sealing connection, manage to find time piston (3) sliding connection in the inside of managing to find time pipeline (1), one-way pneumatic valve (4) set up on managing to find time piston (3), connecting rod (5) rigid coupling in the rear side of managing to find time piston (3), drive actuating cylinder (6) rigid coupling on base (8), powerful spring (7) one end connect the flexible end at drive actuating cylinder (6), the other end is connected with the front end of the connecting rod (5), the base (8) is horizontally arranged, and the evacuation pipeline (1) is fixedly connected with the rear end of the base (8).
2. The device for detecting the sealing performance of the vacuum tube of the molecular pump according to claim 1, wherein the one-way air valve (4) consists of a supporting seat (9), an extension spring (10) and a rubber cover (11), the supporting seat (9) is fixedly connected in the mounting through hole of the evacuating piston (3), the rubber cover (11) is covered at the rear end of the mounting hole of the evacuating piston (3), one end of the extension spring (10) is connected to the supporting seat (9), and the other end of the extension spring is connected to the rubber cover (11).
3. The device for detecting the tightness of a vacuum tube of a molecular pump according to claim 1, characterized in that the evacuation piston (3) is uniformly provided with a plurality of mounting through holes.
4. The device for detecting the tightness of a vacuum tube of a molecular pump according to claim 1, wherein the base (8) is marked with a graduated scale (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220500970.8U CN217059186U (en) | 2022-03-09 | 2022-03-09 | Sealing performance detection device for molecular pump vacuum tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220500970.8U CN217059186U (en) | 2022-03-09 | 2022-03-09 | Sealing performance detection device for molecular pump vacuum tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217059186U true CN217059186U (en) | 2022-07-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220500970.8U Active CN217059186U (en) | 2022-03-09 | 2022-03-09 | Sealing performance detection device for molecular pump vacuum tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217059186U (en) |
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2022
- 2022-03-09 CN CN202220500970.8U patent/CN217059186U/en active Active
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