CN202770584U - Differential pressure gauge - Google Patents
Differential pressure gauge Download PDFInfo
- Publication number
- CN202770584U CN202770584U CN 201220382930 CN201220382930U CN202770584U CN 202770584 U CN202770584 U CN 202770584U CN 201220382930 CN201220382930 CN 201220382930 CN 201220382930 U CN201220382930 U CN 201220382930U CN 202770584 U CN202770584 U CN 202770584U
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- China
- Prior art keywords
- pressure
- base plate
- sensitive
- lever
- differential pressure
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Abstract
The utility model provides a differential pressure gauge, comprising pressure-sensing joints, locking bolts, spring gaskets, a pressure-sensing base plate, bellows, a lever plate assembly, a transmission core and mounting columns. The lever plate assembly and the pressure-sensing base plate form an I-shaped rack. The two bellows are arranged between the lever plate assembly and the pressure-sensing base plate. The two pressure-sensing joints are disposed at the parts of the pressure-sensing base plate corresponding to the two bellows, in the reverse direction of the two bellows. The transmission core is located above the lever plate assembly and is fixed on the mounting columns via the locking bolts. A sector gear driving lever and a transmission steel ball are arranged on the transmission core in a built-in manner and are contacted with each other. With the bellows as pressure-sensing elements, the differential pressure gauge of the utility model can be used for mediums which are not corrosive to the pressure-sensing elements. The novel core is employed to amplify and convert the different displacements of the bellows at high and low pressure ends into the variation of an angle, thereby precisely displaying a differential pressure value.
Description
Technical field
The utility model relates to the differential pressure gauge technical field that compressor, purification, filtration industry are used, particularly a kind of differential pressure gauge.
Background technology
The industries such as differential pressure gauge is mainly used in filtering, purification are measured the pressure reduction before and after the filtering core, to judge the chocking-up degree of filter core.This type of instrument all adopts bourdon tube to make sensing element at present, such as C type bourdon tube, is a pressure-sensitive chamber in the pipe, and pipe is outer to be another pressure-sensitive chamber.Because the inside and outside pressure-sensitive area of pipe is unequal, institute is so that this type of accuracy of instrument is low, and pointer has skew to show when two intake pressures equate fully.Drain pan and apparatus glass are subjected to extraneous the collision to have explosion dangerous in addition, poor stability.Therefore provide a kind of precision high, the differential pressure gauge that security is good has become the technical matters of being badly in need of solution.
Summary of the invention
In view of the foregoing defects the prior art has, the utility model provides a kind of differential pressure gauge, this differential pressure gauge with corrugated tube as sensing element, can be used for the non-corrosive medium of sensing element, use novel movement, the different displacements of the high and low pressure side corrugated tube of differential pressure gauge are amplified be converted into the variable quantity of angle, thereby accurately show differential pressure value.
For reaching above-mentioned purpose, the utility model is taked following scheme:
A kind of differential pressure gauge, this differential pressure gauge comprise pressure-sensitive joint, lock-screw, spring washer, pressure-sensitive base plate, corrugated tube, lever plate assembly, driver core, erection column, it is characterized in that:
Lever plate assembly and pressure-sensitive base plate form " worker " font support, between lever plate assembly and pressure-sensitive base plate, be provided with two corrugated tubes, two corrugated tubes are installed in respectively on the symmetric position of " worker " font support both sides, two corrugated tubes are fixedly connected with respectively with the pressure-sensitive base plate, in pressure-sensitive base plate and two corrugated tube corresponding positions, and be provided with two pressure-sensitive joints on the direction opposite with two corrugated tubes;
In the edge of pressure-sensitive base plate, with respect to being provided with two erection columns on the centrosymmetric position of pressure-sensitive base plate;
Driver core is positioned at the top of lever plate assembly, and is fixed on the erection column by lock-screw, built in fan generating gear driving lever and transmission steel ball on the driver core, and the transmission steel ball contacts with the sector gear driving lever.
Preferably, be provided with an embedded lock-screw in the part of pressure-sensitive base plate between the pressure-sensitive joint, between lock-screw and the pressure-sensitive base plate spring washer arranged.
The utlity model has following advantage and good effect:
1) production, easy to assembly, efficient is high: modular design, shell, joint is easy to connect;
2) volume small and exquisite, install and use and easy to maintenance: whole instrument physical dimension is length * wide * height=60mm * 76mm * 106mm, and weight is no more than 5kg.
Description of drawings
Fig. 1 is differential pressure gauge structural drawing of the present utility model;
Fig. 2 is the index dial structure schematic diagram of the utility model differential pressure gauge;
Fig. 3 is the pressure-sensitive joint design schematic diagram of the utility model differential pressure gauge;
Fig. 4 is the structural drawing of the employed driver core of differential pressure gauge of the present utility model.
Embodiment
Below in conjunction with accompanying drawing embodiments of the present invention are described further.
The structural drawing of this differential pressure gauge as shown in Figure 1.This differential pressure gauge comprises pressure-sensitive joint 1, lock-screw 2, spring washer 3, pressure-sensitive base plate 4, corrugated tube 5, lever plate assembly 6, driver core 7, erection column 8.Wherein, lever plate assembly and pressure-sensitive base plate form " worker " font support, the up and down two ends of " worker " font support are respectively movable end and stiff end, between lever plate assembly and pressure-sensitive base plate, be provided with two corrugated tubes, two corrugated tubes are installed in respectively on the symmetric position of " worker " font support both sides, two corrugated tubes are fixedly connected with respectively with the pressure-sensitive base plate, in pressure-sensitive base plate and two corrugated tube corresponding positions, and are provided with two pressure-sensitive joints on the direction opposite with two corrugated tubes.In the edge of pressure-sensitive base plate, with respect to being provided with two erection columns on the centrosymmetric position of pressure-sensitive base plate.Driver core is positioned at the top of lever plate assembly, and is fixed on the erection column by lock-screw.In addition, be provided with an embedded lock-screw in the part of pressure-sensitive base plate between the pressure-sensitive joint, between lock-screw and the pressure-sensitive base plate spring washer arranged.
The structure of the employed driver core of differential pressure gauge as shown in Figure 4.Built in fan generating gear driving lever 12 and transmission steel ball 11 on the driver core, transmission steel ball 11 contacts with sector gear 12 driving levers.Two corrugated tubes link to each other with high and low pressure pressure-sensitive joint respectively, when the height pressure side has different pressure, the lever plate assembly moves, and built-in transmission steel ball 1 drives sector gear driving lever 2 and rotates an angle on the driver core, thereby makes the pointer 10 of dial plate 9 accurately show differential pressure value.
Protection domain of the present utility model is not limited to the above embodiments, and obviously, those skilled in the art can carry out various changes and distortion and do not depart from the scope of the present invention and spirit the present invention.If these changes and distortion belong in the scope of the utility model claim and equivalent technologies thereof, then intention of the present utility model also comprises these changes and is out of shape interior.
Claims (2)
1. differential pressure gauge, this differential pressure gauge comprises the pressure-sensitive joint, lock-screw, spring washer, the pressure-sensitive base plate, corrugated tube, the lever plate assembly, driver core, erection column, it is characterized in that: lever plate assembly and pressure-sensitive base plate form " worker " font support, between lever plate assembly and pressure-sensitive base plate, be provided with two corrugated tubes, two corrugated tubes are installed in respectively on the symmetric position of " worker " font support both sides, two corrugated tubes are fixedly connected with respectively with the pressure-sensitive base plate, in pressure-sensitive base plate and two corrugated tube corresponding positions, and be provided with two pressure-sensitive joints on the direction opposite with two corrugated tubes;
In the edge of pressure-sensitive base plate, with respect to being provided with two erection columns on the centrosymmetric position of pressure-sensitive base plate;
Driver core is positioned at the top of lever plate assembly, and is fixed on the erection column by lock-screw, built in fan generating gear driving lever and transmission steel ball on the driver core, and the transmission steel ball contacts with the sector gear driving lever.
2. the differential pressure gauge described in according to claim 1 is characterized in that: be provided with an embedded lock-screw in the part of pressure-sensitive base plate between the pressure-sensitive joint, between lock-screw and the pressure-sensitive base plate spring washer arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220382930 CN202770584U (en) | 2012-08-03 | 2012-08-03 | Differential pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220382930 CN202770584U (en) | 2012-08-03 | 2012-08-03 | Differential pressure gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202770584U true CN202770584U (en) | 2013-03-06 |
Family
ID=47777148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220382930 Expired - Lifetime CN202770584U (en) | 2012-08-03 | 2012-08-03 | Differential pressure gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202770584U (en) |
-
2012
- 2012-08-03 CN CN 201220382930 patent/CN202770584U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130306 |
|
| CX01 | Expiry of patent term |