Direct-acting type pressure table
A kind of instrument is the utility model is related to, particularly a kind of manometer.
Pressure gauge refers to using flexible member as sensing element, measure and indicate the instrument higher than environmental pressure, using extremely
Generally, it is almost throughout all industrial flow and scientific research field.In heat distribution pipe network, oil gas transmission, water and air supply system, vehicle
The fields such as maintenance factory shop are seen everywhere.Especially in industrial stokehold and technology measurement process, due to mechanical pressure gauge
Elastic sensing element there is very high mechanical strength and the characteristic such as convenient for production so that mechanical pressure gauge obtains more and more wider
General application.In the prior art, the defects of mechanical pressure gauge is due in structure, causes production and use cost all very
Height, manufacturing procedure is more, unfavorable and energy conservation and environmental protection, and pointer is trembled when pressure rises or falls or whole use environment is vibrated
It is dynamic, it have impact on the pointing accuracy of mechanical pressure gauge.
The content of the invention
The technical problem to be solved by the present invention is to provide a kind of direct-acting type pressure table, simplifies product structure, to reduce
Production and use cost.
In order to solve the above-mentioned technical problem, the direct-acting type pressure table of the utility model, including enclosure interior are provided with watch core
And spring, spring are installed on watch core, housing rear is connected with air inlet connecting nozzle, and vibrationproof grain, housing top are housed in air inlet connecting nozzle
Graduation indication panel is installed, the enclosure interior is provided with watch core, and watch core is by tested air pressure change or the propulsive thrust of spring
Driving is moved in housing, and housing is transparent plastic.
The spring one end is installed on watch core, and the other end is installed in housing.
The housing, watch core, air inlet connecting nozzle, vibrationproof grain are plastic shaping.
The beneficial effects of the utility model are：This direct-acting type pressure is subject to be moved in watchcase after measuring pressure by watch core
Dynamic, the change of generation position, watch core is subject to opposite with spring both direction by measuring pressure in the case that pressure is constant in watchcase
In the case of cancel out each other, balance, produce a fixed position, pass through watch core and indicate pressure with graduation indication panel, simplify
Product structure, can reduce production and use cost, improve product measurement accuracy.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is one of structure diagram of the utility model；
Fig. 2 is the second structural representation of the utility model.
With reference to Fig. 1, Fig. 2, the direct-acting type pressure table of the utility model, including watch core 2 and spring 3 are installed inside housing 1,
Spring 3 is installed on watch core 2, and 1 rear of housing is connected with air inlet connecting nozzle 4, and vibrationproof grain 5, the top of housing 1 are housed in air inlet connecting nozzle 4
Graduation indication panel 6 is installed, watch core 2 is installed inside the housing 1, watch core 2 is by being tested the anti-of air pressure change or spring 3
Thrust driving is moved in housing 1, and housing 1 is transparent plastic.This direct-acting type pressure by watch core be subject to by after measuring pressure
Moved in watchcase, the change of generation position, watch core is subject to by measuring pressure and two, spring in the case that pressure is constant in watchcase
Cancel out each other, balance in the case that direction is opposite, produce a fixed position, pressed by watch core and the instruction of graduation indication panel
Power, simplifies product structure, can reduce production and use cost, improves product measurement accuracy.
Wherein, described 3 one end of spring is installed on watch core 2, and the other end is installed in housing 1.The housing 1, watch core 2,
Air inlet connecting nozzle 4, vibrationproof grain 5 are plastic shaping, to further improve production efficiency.
The foregoing is merely the preferred embodiments of the utility model, as long as realizing the utility model with essentially identical means
The technical solution of purpose is belonged within the scope of protection of the utility model.