Double piston type pressure vacuum gauge

A vacuum gauge and double-piston technology, applied in the field of pressure vacuum gauge, achieves the effects of not easy to wear, small deformation coefficient and small deformation error

Inactive Publication Date: 2011-10-19
SHANGHAI JIANZHOU MACHINERY EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a novel dual-piston

Method used

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  • Double piston type pressure vacuum gauge
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  • Double piston type pressure vacuum gauge

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Example Embodiment

[0029] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention will be further explained below in conjunction with specific embodiments.

[0030] figure 2 It is a cross-sectional view of the double-piston pressure vacuum gauge of the present invention. As shown in the figure, the double-piston pressure vacuum gauge of the present invention includes a simple piston 1, a differential piston 2 and an oil pipe connecting the simple piston 1 and the differential piston 2 3. The simple piston 1 and the differential piston 2 are fixed on the same piston cylinder seat plate 12. The upper part of the simple piston 1 and the differential piston 2 is provided with a tray seat frame 4 (only the simple piston side is marked), a tray (5, 6 ) And weight trays (7, 8), the trays (5, 6) are respectively located on the corresponding tray holder 4, and the weight trays (7, 8) are respectively located on the co...

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Abstract

The invention relates to a double piston type pressure vacuum gauge which comprises a simple piston, a differential piston and an oil pipe connecting the simple piston and the differential piston. The simple piston and the differential piston are fixed on a piston cylinder seat board. The upper parts of the simple piston and the differential piston are provided with pallet seat frames, pallets and counterweight pallets. The pallets are respectively on the corresponding pallet seat frame. The counterweight pallets are respectively on the corresponding pallets. The lower parts of the simple piston and the differential piston are provided with cylinder combination members. The cylinder combination members comprise piston cylinders, piston cylinder seats and cylinder caps. The piston cylinders of the simple piston and the differential piston are fixed on piston cylinder seats through cylinder caps. Through an improvement design of pistons, piston cylinder structure and material of a present double piston type pressure vacuum gauge, the piston and piston cylinder in the invention has the advantages of good wearability, long service life and convenient cleaning. And the accuracy control of double piston rods in working is ensured.

Description

technical field [0001] The invention relates to a pressure vacuum gauge. In particular, the present invention relates to a dual-piston pressure vacuum gauge. technical background [0002] In the dual-piston pressure vacuum gauge commonly used at present, the piston and the piston cylinder are all made of alloy steel, which is easy to wear and has a short service life. [0003] Furthermore, most of the piston cylinder and the piston cylinder seat are integral structures (see figure 1 ), which will bring greater difficulty to the cleaning of the piston and piston cylinder of the piston system, so that the cleaning work needs to be carried out by professionals. [0004] In addition, the current double-piston pressure vacuum gauge, the accuracy of the double-piston rod is difficult to control during work. [0005] Therefore, hope to have a kind of novel dual-piston pressure vacuum gauge, to overcome the shortcoming of existing double-piston pressure vacuum gauge. Contents o...

Claims

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Application Information

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IPC IPC(8): G01L7/16G01L21/02
Inventor 陆国清
Owner SHANGHAI JIANZHOU MACHINERY EQUIP
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