Vacuum obtaining and measuring device
By introducing vacuum tubes and electrodes into the vacuum acquisition and measurement device, the problem of lack of intuitiveness of existing instruments is solved, and more intuitive and interesting vacuum measurement and glow discharge experiments are achieved.
Patent Information
- Application Number
- CN202422070170.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-08-26
AI Technical Summary
The existing vacuum acquisition and measurement experimental instruments lack intuitiveness and are difficult to arouse students' experimental interest.
The vacuum tube and an ionization gauge were introduced into the vacuum acquisition and measurement device, and electrodes were installed in the vacuum tube. After vacuuming through a rotary vacuum pump, the vacuum degree was measured using the ionization gauge, and discharged in the vacuum tube through the electrode to conduct glow discharge experiments.
It enhances the intuitiveness and fun of the experiment, allowing students to understand the vacuum acquisition and measurement process more intuitively, and can conduct glow discharge experiments.
Smart Images
Figure CN223065805U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an experimental instrument for obtaining and measuring vacuum, in particular to a device for obtaining and measuring vacuum. Background Art
[0002] Generally speaking, the obtaining and measuring of vacuum are common contents in experimental teaching. The existing experimental instruments for obtaining and measuring vacuum can only collect data in the data chassis by observing the values measured by the vacuum gauge at different rates when the vacuum pump evacuates the air, and then compare and analyze the collected data to understand the experiment of obtaining and measuring vacuum. However, relying solely on the analysis and comparison of data is difficult to arouse students' interest and is not intuitive enough. Therefore, a device for obtaining and measuring vacuum is proposed. Content of the Utility Model
[0003] The purpose of the utility model is to propose a device for obtaining and measuring vacuum to solve the above problems.
[0004] To achieve the above purpose, the utility model provides the following technical solution: a device for obtaining and measuring vacuum, including a base, a support frame installed on the base, a pipeline installed on the support frame, and a rotary vane vacuum pump connected to the pipeline; it is characterized in that it further includes a vacuum tube installed on the pipeline and communicated with the pipeline, and an electrode placed in the vacuum tube; the pipeline is also connected with an ionization gauge for measuring the vacuum degree.
[0005] Further preferably, it further includes a vacuum tank communicated with the pipeline.
[0006] Further preferably, it further includes a manual control valve on the pipeline between the rotary vane vacuum pump and the vacuum tube.
[0007] Further preferably, it further includes a plug installed at the port of the pipeline for plugging.
[0008] Further preferably, the electrode includes an anode and a cathode placed at both ends of the vacuum tube, and both the anode and the cathode are connected with a conduction adjustment part for conduction and driving the adjustment of their positions in the vacuum tube.
[0009] The beneficial effects of the utility model: By installing a vacuum tube and an ionization gauge on the pipeline, after obtaining a vacuum by evacuating the pipeline and the vacuum tank with a rotary vane vacuum pump, the vacuum degree can be measured by the ionization gauge. By installing an electrode in the vacuum tube, when conducting the experiment of obtaining and measuring vacuum, not only can the obtained vacuum be measured by the ionization gauge, but also the electrode can directly discharge in the vacuum tube with low vacuum. The discharge phenomenon can increase students' interest during the experiment, is more intuitive, and can also conduct the experiment of glow discharge at the same time. Description of the Drawings
[0010] Appendix Figure 1 is the structural schematic diagram of the present utility model;
[0011] Appendix Figure 2 is the sectional structural schematic diagram at the vacuum tube of the present utility model.
[0012] Legend: 1. Base; 2. Support frame; 3. Pipeline; 4. Ionization gauge; 5. Vacuum tank; 6. Manual control valve; 7. Plug; 8. Electrode; 9. Conductivity adjusting part; 10. Vacuum tube. Detailed implementation manners
[0013] Next, we will further explain a vacuum acquisition and measurement device according to the present utility model with reference to the accompanying drawings.
[0014] It should be noted that all directional indications such as up, down, left, right, front, back... in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indications will also change accordingly.
[0015] In the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense; for example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0016] Referring to Figure 1-2 shown in
[0017] a vacuum acquisition and measurement device includes a base 1, a support frame 2 installed on the base 1, a pipeline 3 installed on the support frame 2, and a rotary vane vacuum pump connected to the pipeline 3; it is characterized in that it further includes a vacuum tube 10 installed on the pipeline 3 and communicating with the pipeline 3, and an electrode 8 placed inside the vacuum tube 10; the pipeline 3 is also connected with an ionization gauge 4 for measuring the vacuum degree; it further includes a vacuum tank 5 communicating with the pipeline 3.
[0017] By installing the vacuum tube 10 and the ionization gauge 4 on the pipeline 3, after vacuum is obtained by evacuating the pipeline 3 and the vacuum tank 5 with the rotary vane vacuum pump, the vacuum degree can be measured by the ionization gauge 4. By installing the electrode 8 in the vacuum tube 10, when conducting the experiment of vacuum acquisition and measurement, not only can the obtained vacuum be measured by the ionization gauge 4, but also the electrode 8 can directly discharge inside the vacuum tube 10 with low vacuum. The discharge phenomenon can increase the interest of students during the experiment, and at the same time it is more intuitive, and the experiment of glow discharge can also be carried out simultaneously.
[0018] In one embodiment, it further includes a manual control valve 6 on the pipeline 3 between the rotary vane vacuum pump and the vacuum pipeline 10; through the setting of the manual control valve 6, during the experiment, the flow rate during vacuum pumping and the opening and closing of the pipeline 3 can be adjusted through the manual control valve 6. The manual control valve 6 can also be replaced with an electromagnetic valve for automatic control. Using the manual control valve 6 can increase the sense of participation of the experimenter.
[0019] In one embodiment, it further includes a plug 7 installed at the port of the pipeline 3 for plugging. Through the setting of the plug 7, it is used to plug the port of the pipeline 3 to prevent the influence of leakage on vacuum pumping and the maintenance of vacuum degree.
[0020] In one embodiment, the electrode 8 includes an anode and a cathode placed at both ends of the vacuum pipeline 10, and both the anode and the cathode are connected with a conduction adjustment part 9 that plays a conduction role and drives the adjustment of its position in the vacuum pipeline 10;
[0021] By setting the anode and the cathode at both ends of the vacuum pipeline 10, when obtaining a low vacuum through the rotary vane vacuum pump, it can be discharged in the low-vacuum vacuum pipeline 10 by supplying power to the anode and the cathode to conduct a glow experiment; at the same time, through the setting of the conduction adjustment part 9, it is used for the connection between the anode and the cathode and the circuit, and is also used to adjust and change the positions of the anode and the cathode in the vacuum pipeline 10. The connection between the conduction adjustment part 9 and both ends of the vacuum pipeline 10 is a sealed connection.
[0022] When the utility model is in use: First, the rotary vane vacuum pump is started to pump vacuum for the pipeline 3, the vacuum pipeline 10 and the vacuum tank 5 to obtain vacuum. Then, the ionization gauge 4 is used to measure the vacuum degree to achieve the measurement of vacuum. At the same time, the vacuum degree is adjusted according to the measured vacuum degree result to make the vacuum degree in the low-vacuum state. When in the low-vacuum state, the anode and the cathode are electrically conducted, and after conduction, the anode and the cathode are discharged in the low-vacuum vacuum pipeline 10, thereby conducting a glow experiment.
[0023] The protection scope of the utility model is not limited to the above embodiments and their variations. Routine modifications and replacements made by those skilled in the art based on the content of this embodiment all fall within the protection scope of the utility model.
Claims
1. A device for obtaining and measuring vacuum, comprising a base (1), a support frame (2) mounted on the base (1), a pipeline (3) mounted on the support frame (2), and a rotary vane vacuum pump connected to the pipeline (3); characterized in that It further includes a vacuum tube (10) installed on and communicating with the pipeline (3) and an electrode (8) placed inside the vacuum tube (10); the pipeline (3) is further connected with an ionization gauge (4) for measuring the vacuum degree.
2. The vacuum acquisition and measurement device according to claim 1, characterized in that: It further includes a vacuum tank (5) communicating with the pipeline (3).
3. A vacuum acquisition and measurement device according to claim 1, characterized in that: It further includes a manual control valve (6) on the pipeline (3) between the rotary vane vacuum pump and the vacuum tube (10).
4. A vacuum acquisition and measurement device according to claim 1, characterized in that: It further includes a plug (7) installed at the port of the pipeline (3) for plugging.
5. A device for obtaining and measuring a vacuum according to claim 1, characterized in that: The electrode (8) includes an anode and a cathode placed at both ends of the vacuum tube (10), and both the anode and the cathode are connected with a conduction adjustment part (9) for conduction and driving the adjustment of its position inside the vacuum tube (10).