CN203055776U

CN203055776U - Pressure controller

Info

Publication number: CN203055776U
Application number: CN 201320065104
Authority: CN
Inventors: 姜宏金
Original assignee: TAIYUAN JINGWEI MEASUREMENT CONTROL TECHNOLOGY Co Ltd
Current assignee: TAIYUAN JINGWEI MEASUREMENT CONTROL TECHNOLOGY Co Ltd
Priority date: 2013-02-05
Filing date: 2013-02-05
Publication date: 2013-07-10
Anticipated expiration: 2023-02-05

Abstract

The utility model discloses a pressure controller, comprising a sylphon box, a bottom plate, a sylphon, a microswitch, an installing plate, a spring leaf, and a balancing piece; wherein the sylphon is arranged in the sylphon box, a lower end of the sylphon is communicated with a receiving nozzle, an upper end of the sylphon is connected with a push rod in a welding way, the push rod penetrates the bottom plate fixed to an upper end of the sylphon box, the microswitch is fixed on the installing plate, the installing plate is fixed on the balancing piece, the balancing piece is fixed on the spring leaf, and the spring leaf is arranged on two pillars at left and right sides of the bottom plate. The pressure controller of the utility model has the beneficial effects of simple structure, small volume, light weight, wide application range, long service life, high reliability, and capacity for eliminating error caused by vibration.

Description

A kind of pressure controller

Technical field

The utility model relates to a kind of controller, relates in particular to a kind of small pressure controller.

Background technology

In industrial circle; often can use the operating pressure of measuring and controlling certain equipment; at present; industrial extensive employing be to utilize bourdon tube as the pressure controller of elasticity sensitive material; sort controller complex structure, volume are big; and bourdon tube is being pressed sensitive switch when not working, and make sensitive switch bear very big pressure, so sensitive switch is easy to break down because bearing excessive pressure.

The utility model content

Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art and provides a kind of volume little, the pressure controller that stability and reliability is high.

For reaching above purpose, the utility model adopts following technical scheme: a kind of pressure controller, comprise bellows case, base plate, bellows, sensitive switch, mounting panel, spring leaf and balance weight, described bellows is installed in the bellows case, the connection of bellows lower end connects mouth, the upper end is welded to connect push rod, push rod runs through the base plate that is fixed on bellows case upper end, sensitive switch is fixed on the mounting panel, mounting panel is fixed on the balance weight, balance weight is fixed on the spring leaf, and spring leaf is installed in about base plate on two pillars.

As preferably, described bellows adopts elastic alloy to make.

As preferably, be connected on the pillar to the adjustable relative altitude of described spring leaf.

The beneficial effects of the utility model are: little in light weight, applied widely, the long service life of simple in structure, volume, reliability height, can eliminate along the horizontal and vertical vibration of flexure strip.

Description of drawings

In order to be illustrated more clearly in the technical solution of the utility model, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the utility model structure chart.

Among the figure: 1. connect mouth, 2. bellows, 3. base plate, 4. negtive micropressure switch, 5. mounting panel, 6. spring leaf, 7. balance weight, 8. nut, 9. bellows case.

Embodiment

Below in conjunction with accompanying drawing the technical solution of the utility model is explained in detail, in conjunction with Fig. 1, a kind of pressure controller, comprise bellows case 9, base plate 3, bellows 2, sensitive switch 4, mounting panel 5, spring leaf 6 and balance weight 7, described bellows 2 is installed in the bellows case 9, and described bellows adopts elastic alloy to make, can reduce error, improve control precision, when being applied in field such as chemical industry, can adopt resistant material to make; The connection of bellows 2 lower ends connects mouth 1, last end in contact connects push rod, push rod runs through the base plate 3 that is fixed on bellows case 9 upper ends, experience pressure and promote negtive micropressure switch when bellows and walk around when changing, if pressure continues to increase, bellows will be by base plate 3 stop, and bellows 2 and sensitive switch 4 all are protected, and have guaranteed the reliability of work; Sensitive switch 4 is fixed on the mounting panel 5, and mounting panel 5 is fixed on the balance weight 7, and balance weight 7 is fixed on the spring leaf 6, and balance weight 7 and sensitive switch 4 are installed in the both sides of spring leaf, can eliminate the swing of sensitive switch; Spring leaf 6 is installed on about 3 two pillars of base plate, spring leaf had not only play the guiding role but also good longitudinal rigidity had been arranged, and guaranteed the stability of contact work, because that spring leaf prolongs longitudinal rigidity is very big, in this direction if any when vibration, to the almost not influence of work of whole pressure controller; Be connected on the pillar to described spring leaf 6 adjustable relative altitudes, to regulate the original position of sensitive switch, when finishing general assembly or using in the outfield, when adjusting the working point of on-off if desired, can unclamp nut 8 with spanner, it is that bellows moves up and down that rotation connects mouth 1, has changed the distance between bellows upper end connection push rod end face and the sensitive switch contact, thereby makes working point and working range obtain adjusting.

The course of work of the present utility model is as follows: when pressure increases to a certain value, the bellows upper ejector pin promotes the sensitive switch contact and realizes once conversion, the a pair of normally-closed contact of sensitive switch is disconnected, another is to the normally opened contact closure simultaneously, when pressure descends, realize conversion at another less pressure spot, make normally-closed contact reply closure state, normally opened contact disconnects simultaneously, because the structure setting of negtive micropressure switch is that these two transfer points are not same pressure spots, these two pressure spots are control or warning working point, pressure reduction between these two pressure spots is exactly the pressure limit of controlling automatically, can set up according to user's requirement.

The above person, being preferred embodiment of the present utility model only, is not to limit practical range of the present utility model, and namely all equalizations of doing according to the utility model change and modify, be all the utility model claim scope and contain, give an example no longer one by one here.

Claims

1. pressure controller, it is characterized in that: comprise bellows case, base plate, bellows, sensitive switch, mounting panel, spring leaf and balance weight, described bellows is installed in the bellows case, the connection of bellows lower end connects mouth, and the upper end is welded to connect push rod, and push rod runs through the base plate that is fixed on bellows case upper end, sensitive switch is fixed on the mounting panel, mounting panel is fixed on the balance weight, and balance weight is fixed on the spring leaf, and spring leaf is installed in about base plate on two pillars.

2. pressure controller according to claim 1 is characterized in that: described bellows adopts elastic alloy to make.

3. pressure controller according to claim 1 is characterized in that: be connected on the pillar to the adjustable relative altitude of described spring leaf.