CN218378299U - Vacuum meter mounting base for reducing pointer shake - Google Patents
Vacuum meter mounting base for reducing pointer shake Download PDFInfo
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- CN218378299U CN218378299U CN202221855986.7U CN202221855986U CN218378299U CN 218378299 U CN218378299 U CN 218378299U CN 202221855986 U CN202221855986 U CN 202221855986U CN 218378299 U CN218378299 U CN 218378299U
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- air flow
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- mounting seat
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Abstract
The utility model discloses a vacuum meter mounting seat for reducing pointer shake, which comprises a mounting seat body, wherein a mounting nut is welded at the upper opening of the mounting seat body and is used for being in sealing threaded connection with a working port of a vacuum meter; the side wall of the mounting seat body is provided with an air exhaust nozzle and an air inlet nozzle which are communicated with the inner cavity of the mounting seat body; an air flow buffer component is arranged in the inner cavity of the installation seat body: the air flow buffering part comprises a plurality of circles of spirally wound air flow channels, wherein the lower end ports of the air flow channels are arranged at the bottom of the inner cavity of the mounting base body, and the upper end ports of the air flow channels are communicated with the lower end ports of the mounting nuts in a sealing mode. Because the spiral air flow channel which rises in a winding manner is arranged in the inner cavity of the mounting seat body, when air flows through the flow channel, the compression wave and the expansion wave can be mutually offset, the internal air flow is damped, the impact of the air flow on the pointer assembly of the vacuum gauge is slowed down, the display of the pointer of the vacuum gauge is stable, the jitter of the pointer is reduced, and the damage of the vacuum gauge is avoided.
Description
Technical Field
The utility model relates to a vacuum meter that uses among the evacuation pipe-line system especially relates to a vacuum meter mount pad for slowing down pointer shake.
Background
At present, in the vacuum-pumping process of a vacuum meter used in a vacuum-pumping pipeline system, airflow entering the vacuum meter can impact a pointer assembly of the vacuum meter, so that the pointer shakes, the reading is inconvenient, and the vacuum meter can be damaged. In order to ensure the stability and reliability of the pointer of the vacuum meter during working, the damping tube is required to be connected firstly when the vacuum meter is installed and then connected with the equipment to be tested, the damping tube not only plays a role in buffering the impact of airflow on the vacuum meter to protect the vacuum meter, but also plays a role in supporting the vacuum meter so as to ensure that the vacuum meter is stable and reliable after being installed and cannot be damaged. However, the connection with other devices to be tested through the damping tube is complicated and difficult, for example, in a simple vacuum detection system composed of a vacuum pump, a vacuum gauge and the devices to be tested, the connection needs to be performed through various adapters, the connection structure is complex, and the connection difficulty is high. In addition, an oil pressure anti-vibration vacuum gauge is directly used in a vacuum pumping pipeline system, and the oil pressure anti-vibration vacuum gauge only solves the vibration problem of a pointer of the vacuum gauge from the surface, but internal airflow is not relieved, so that the service life of the vacuum gauge is still influenced.
Disclosure of Invention
An object of the utility model is to the defect that prior art exists, a vacuum meter mount pad for slowing down pointer shake is provided to replace current damping tube, realize that the installation of vacuum meter is stable, reliable, convenient.
In order to achieve the above purpose, the utility model can adopt the following technical proposal:
the utility model discloses a vacuum meter mount pad for slowing down pointer shake, including the installation pedestal, the upper shed department welding of installation pedestal has the mounting nut, is used for with the sealed spiro union of vacuum meter working port; the side wall of the mounting seat body is provided with an air exhaust nozzle and an air inlet nozzle which are communicated with the inner cavity of the mounting seat body; an air flow buffer component is arranged in the inner cavity of the installation seat body:
the air flow buffering part comprises a plurality of circles of spirally wound air flow channels, wherein the lower end ports of the air flow channels are arranged at the bottom of the inner cavity of the mounting base body, and the upper end ports of the air flow channels are communicated with the lower end ports of the mounting nuts in a sealing mode. Because the spiral winding ascending air flow channel is adopted, when the airflow flows through the flow channel, the compression wave and the expansion wave can be mutually offset, the internal airflow is damped, the impact of the airflow on the vacuum meter is slowed down, the display of the vacuum meter is stable, and the shaking of the meter needle is reduced.
The inner diameter of the air flow passage is about 2mm.
The lower edge of the mounting nut is inwards folded to form a circular ring-shaped platform, and the upper end opening of the air flow channel upwards extends into a central annular opening of the circular ring-shaped platform and is welded with the circular ring-shaped platform into a whole. And a sealing gasket is arranged on the upper surface of the circular ring table. Therefore, the connection sealing effect of the working port of the vacuum meter and the inner cavity of the seat body can be further improved.
The lower part of the mounting base body is a prism (a hexagonal prism or a quadrangular prism) or other non-circular shapes, so that the vacuum meter can be conveniently mounted through a tool (a solid wrench or a hand clamp).
The utility model has the advantages that:
1. the vacuum meter is installed through the shock absorption installation seat, and compared with the damping tube, the vacuum meter has a better supporting effect; the airflow buffer part (damping part) is arranged in the inner cavity of the mounting seat body, and does not bear load during working, thereby ensuring the damping effect and reducing the volume of the mounting seat.
2. During connection, the air exhaust nozzle is connected with an air suction port of a vacuum pump in the system through a hose, the air inlet nozzle is connected with the tested equipment through a hose, and the vacuum meter is directly screwed on the mounting nut, so that the connection is simpler and more convenient.
3. The lower part of the installation base body is designed into a prism body, so that the installation by adopting tools is convenient.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a sectional structural view of fig. 1.
Fig. 3 is a usage state diagram of the present invention.
Detailed Description
The present invention will be described in more detail with reference to the accompanying drawings, and the present embodiment is an implementation based on the technical solution of the present invention, and provides a detailed implementation and a specific operation process, but the present invention is not limited to the following embodiments.
As shown in fig. 1 and fig. 2, the vacuum meter mounting base for mitigating pointer shake of the present invention comprises a mounting base 1 with an upper opening structure, wherein a mounting nut 2 is welded at an upper opening of the mounting base 1, and when in use, a working port of a vacuum meter is directly sealed and screwed on the mounting nut 2; be provided with on the lateral wall of installation pedestal 1 and chew 3 and the air inlet that is linked together with its inner chamber and chew 4 (bleed and chew 3 last, the air inlet is chewed 4 and is under), for guaranteeing that the during operation pointer of vacuum gauge is stable, the shake phenomenon does not appear, this application is provided with air current buffer unit (damping piece promptly) in 1 inner chamber of installation pedestal: specifically, the airflow buffer part comprises a plurality of circles of spirally wound air flow channels 5 (which can be formed by winding a copper pipe), the inner diameter of each air flow channel 5 is smaller and about 2mm, the lower end opening of each air flow channel 5 is arranged at the bottom of the inner cavity of the mounting seat body 1, and the upper end opening of each air flow channel is communicated with the lower end opening of the mounting nut 2 in a sealing manner; in order to ensure the sealing effect, the lower edge of the mounting nut 2 is folded inwards to form a circular ring table 6, the upper end opening of the air flow channel 5 extends upwards into a central ring opening of the circular ring table 6 and is welded with the circular ring table 6 into a whole, and a sealing gasket 7 is arranged on the upper surface of the circular ring table 6; for the installation of convenient vacuum table, the lower part design that this application will install pedestal 1 is hexagonal prism, can use appurtenance such as spanner during the installation.
As shown in figure 3, in actual use, the air exhaust nozzle 3 is connected with the vacuum pump 8 through the air exhaust hose, the air inlet nozzle 4 is connected with the tested equipment 9 through the air inlet hose, and the working port of the vacuum meter 10 is directly screwed on the mounting nut 2 in a sealing manner, so that the connection of the vacuum-pumping system is completed. During operation, start vacuum pump 8, the air current that gets into 1 inner chamber of installation pedestal enters from the lower extreme import of air runner 5, reentrant vacuum meter 10 after the whole runner that rises is coiled to the spiral, the internal diameter of air runner 5 is very little (only for about 2 mm), when the air current flows through this runner, compression wave can offset each other with the expansion wave, play the damping effect to inside air current, the impact of air current to vacuum meter 10 pointer subassembly has effectively been slowed down, the shake of table needle has been reduced, make things convenient for the reading, and can avoid because of the vacuum meter damage that the air current impacted the cause.
Claims (5)
1. A vacuum gauge mount for mitigating pointer jitter, comprising: the mounting base is welded with a mounting nut at the upper opening; the side wall of the mounting seat body is provided with an air exhaust nozzle and an air inlet nozzle which are communicated with the inner cavity of the mounting seat body, and an air flow buffer component is arranged in the inner cavity of the mounting seat body:
the air flow buffering component comprises a plurality of circles of spirally wound air flow channels, the lower end ports of the air flow channels are arranged at the bottom of the inner cavity of the mounting base body, and the upper end ports of the air flow channels are communicated with the lower end ports of the mounting nuts in a sealing mode.
2. The vacuum gauge mount for mitigating hand jitter of claim 1, wherein: the inner diameter of the air flow channel is 2mm.
3. The vacuum gauge mount for mitigating hand jitter of claim 1, wherein: the lower edge of the mounting nut is inwards folded to form a circular ring-shaped platform, and the upper end opening of the air flow channel upwards extends into a central annular opening of the circular ring-shaped platform and is welded with the circular ring-shaped platform into a whole.
4. The vacuum gauge mount of claim 3, wherein: and a sealing gasket is arranged on the upper surface of the circular ring table.
5. The vacuum gauge mount for mitigating hand jitter of claim 1, wherein: the lower part of the mounting seat body is a prism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221855986.7U CN218378299U (en) | 2022-07-19 | 2022-07-19 | Vacuum meter mounting base for reducing pointer shake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221855986.7U CN218378299U (en) | 2022-07-19 | 2022-07-19 | Vacuum meter mounting base for reducing pointer shake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218378299U true CN218378299U (en) | 2023-01-24 |
Family
ID=84962821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221855986.7U Active CN218378299U (en) | 2022-07-19 | 2022-07-19 | Vacuum meter mounting base for reducing pointer shake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218378299U (en) |
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2022
- 2022-07-19 CN CN202221855986.7U patent/CN218378299U/en active Active
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