CN202733077U - Security type gas pressure regulator - Google Patents

Abstract

The utility model relates to a security type gas pressure regulator, which comprises a chamber body. The chamber body is formed by butt-buckling of a main body and an upper cover and is divided by a rubber sealing diaphragm into an upper chamber and a lower chamber, a control rod is arranged in the upper chamber, an armature plate at the lower end of the control rod extends into the lower chamber and is connected with the rubber sealing diaphragm through a tray, a pressure regulating spring is pressed between the tray and an upper cover resetting hand button, a pipe component with an internal valve port and an external valve port is arranged at a gas inlet of the lower chamber of the main body, a valve stem is coaxially arranged in the pipe component, two ends of the valve stem are respectively provided with a pressure regulating valve head and a cutoff valve head for plugging the internal valve port and the external valve port, the inner side of the pressure regulating valve head is connected with a main rod in the lower chamber through a rocker arm in a transmission way, the upper end of the main rod is fixedly provided with a permanent magnet through a spring tray, and a lower spring is pressed between the spring tray and the armature plate. By adopting the pressure regulating device, a gas source can be cut off automatically when gas in a pipe is insufficient and the pressure of the outlet end of the pressure regulator exceeds the specified range, and safe use of gas can be ensured.

Description

Security type gas pressure regulator, governor

Technical field

The utility model belongs to the gas pressure regulator, governor technical field, relates in a kind of family expenses and the industrial pipeline gas air feed process, when outlet end superpressure or entrance point undervoltage condition occurring, can automatically cut off the security type gas pressure regulator, governor that gas circuit realizes self-protection.

Background technique

In daily life and industrial production, when the pipeline gas supply was interrupted suddenly, people tended to owing to closing valve is forgotten in carelessness, and combustion gas will be released in a large number after recovering air feed like this, brings potential safety hazard.In addition, in recent years in the air feed process of some combustion gas, for saving construction material, compress into the advanced technologies of pressure regulation behind the family in normal the employing, in a single day can pressure governor outlet end superpressure or entrance point undervoltage condition occur the time, gas meter blast and other secondary accidents will occur, and this can bring very big harm to the user.

The model utility content

The purpose of this utility model is the problem that prior art exists is solved, and then provide a kind of structural principle simple, the security type gas pressure regulator, governor of reliable performance, this pressure governor can source of the gas output, the safety of assurance gas user occur automatically cutting off when seriously under-voltage or pressure governor exports the superpressure situation at pipeline gas.

Be used for realizing that the technological scheme of foregoing invention purpose is such: the security type gas pressure regulator, governor that provides has a cavity that is made of main body and loam cake make-up, there are suction port and air outlet in the main body two ends, and by the rubber seal diaphragm cavity is divided into up and down two chambers, on cover and have center hole and the hand button that resets is housed, by the hand button center that resets to the in-built controlling rod that enters a lower end band armature disc of upper chamber, the lower end armature disc of controlling rod stretches into lower chambers and is connected with the rubber seal diaphragm by a pallet, at pallet and reset and be pressed with pressure adjusting spring between the hand button, be equipped with in the band at main body lower chambers suction port place, the pipe fitting of outer valve port, coaxial in pipe fitting a sliding stem is housed, in the valve rod, outer two is respectively equipped with in the shutoff, the pressure regulation valve head of outer valve port and cut-out valve head, the inboard of pressure regulation valve head is in transmission connection by rocking arm and a vertical mobile jib that is arranged on the lower chambers middle part, upper end at mobile jib is fixed with permanent magnet by spring tray, is pressed with lower spring between spring tray periphery and armature disc periphery.

Working procedure of the present utility model is as described below.

Pressure governor is when normal condition, and plane armature disc and permanent magnet below the controlling rod are in attracting state, and at this moment, lower spring is compressed.Because the buoyancy that gaseous-pressure produces the rubber seal diaphragm, the mobile jib that drives bottom chamber keeps certain position and makes rocking arm deflection promote the nearly interior valve port of pressure regulator valve head rest, combustion gas can be transported to burner by suction port, outer valve port, interior valve port, lower chambers, air outlet successively, simultaneously also and according to user's gas consumption size, make bottom chamber pressure change (this moment, the displacement meeting of rubber seal diaphragm changed), and then the permanent magnet mobile jib of upper chamber's controlling rod and phase adhesive is moved, and drive rocking arm deflection.The Angulation changes of the deflection of rocking arm the distance of pressure regulation valve head and interior valve port, thereby the size of air inflow is regulated, guarantee that the pressure governor outlet pressure is stable.When following situation occurs when, pressure governor is with autoshutdown: 1, when the pressure governor outlet pressure raises and seriously exceeds normal value, the rubber seal diaphragm is constantly moved up by the gas pressure after the superpressure, drive the controlling rod armature disc and adsorb superincumbent permanent magnet up, because being pressed on the interior valve port pressure regulation valve head, the rocking arm deflection below the mobile jib cause stroke to be limited, the rubber seal diaphragm continues power upwards makes controlling rod lower end armature disc separate with the permanent magnet that it adsorbs mutually, at this moment, the lower spring expansionary force presses down mobile jib, cause rocking arm to deflect down pulling cut-out valve head and press outer valve port, thereby cut off air-flow pressure governor cuts out; 2, when suction pressure is very low, pulling is cut off valve head and is pressed outer valve port and cut off air-flow pressure governor cuts out because the buoyancy on the rubber seal diaphragm less than pressure adjusting spring tension force, causes rubber seal diaphragm, controlling rod, mobile jib to press down causing rocking arm downward bias.After the normal and fault of air feed is got rid of, again use gas such as need, can be by the manual operation hand button that resets, rocking arm is upward deflected make and cut off valve head and leave outer valve port, the user can normally use combustion gas.

Compared with prior art; the utlity model has the advantages such as simple and reasonable, easy to install and use, that fabricating cost is cheap, Safety performance is reliable; it has overcome in the past the product harm such as can cause that gas meter blast and combustion gas are leaked in a large number of in a single day breaking down; efficiently solve gas pipeline and superpressure, the automatic protection problem when under-voltage occur, guarantee the safe handling of combustion gas.

Description of drawings

Accompanying drawing is the structural representation of a specific embodiment of the utility model.

Each label title is respectively in the accompanying drawing: the 1-hand button that resets, 2-armature disc, 3-pallet, 4-main body, valve port in the 5-, the 6-suction port, 7-cuts off valve head, the outer valve port of 8-, 9-pressure regulation valve head, 10-rocking arm axostylus axostyle, 11-rocking arm, 12-lower spring, the 13-permanent magnet, 14-pin, 15-mobile jib, 16-spring tray, 17-rubber seal diaphragm, 18-air outlet, 19-loam cake, the 20-pressure adjusting spring, 21-controlling rod, 22-reset button pressure cap.

Embodiment

Below with reference to accompanying drawing the utility model content is described further, but actual fabrication structure of the present utility model is not limited in following embodiment.

Referring to accompanying drawing, the main body 1 of security type gas pressure regulator, governor described in the utility model is a shelly object that can be connected on the gas piping, it and one mutually fasten with the loam cake 19 of center hole and become cavity, be provided with a rubber seal diaphragm 17 in cavity cavity is divided into up and down two chamber portions.Cover has pressure adjusting spring 20 on the controlling rod 21 of band plane, lower end armature disc, at controlling rod 21 the hand button 1 that resets is housed, and the hand button 1 that resets can be back and forth interactive on controlling rod 21, and its sphere of activities is subjected to jackscrew spacing.The plane armature disc 2 that is located at controlling rod 21 lower ends is fixed together by locking nut and rubber seal diaphragm 17, pallet 3.Lower spring 12 withstands on above the spring tray 16 and is arranged between armature disc 2 and the permanent magnet 13.Mobile jib 15, rocking arm 11, spring tray 16, with pressure regulation valve head 9 and cut off the valve rod of valve head 7 and band in the pipe fitting of valve port 5 and outer valve port 8 all be located at bottom chamber, wherein permanent magnet 13, spring tray 16 are fixed on mobile jib 15 upper ends, mobile jib 15 bottoms are connected with an end of rocking arm 11 by the notch that is inserted with pin 14; the pressure regulation valve head 8 of the other end of rocking arm 11 and valve rod one end (the inner) joins, and the other end of valve rod (outer end) is connected with the foreign side that cuts off valve head 7 and be arranged on valve port 8 outside the main body suction port pipe fitting.Before this pressure governor is installed on gas meter when using, in the modification stability delivery pressure, can prevent from effectively that gas leakage after overpressure of gas and under-voltage and pressure governor fault occur and gas meter from blasting to wait the accident that endangers gas user safety.

Claims (1)

1. security type gas pressure regulator, governor, has a cavity that is consisted of by main body (4) and loam cake (19) make-up, there are suction port (6) and air outlet (18) in main body (4) two ends, and by rubber seal diaphragm (17) cavity is divided into up and down two chambers, have center hole on the loam cake (19) and the hand button (1) that resets is housed, it is characterized in that by hand button (1) center that resets to the in-built controlling rod (21) that enters lower end band plane armature disc (2) of upper chamber, the lower end armature disc (2) of controlling rod (21) stretches into lower chambers and is connected with rubber seal diaphragm (17) by a pallet (3), at pallet (3) and reset and be pressed with pressure adjusting spring (20) between hand button (1), in main body lower chambers suction port (6) locates to be equipped with a band, outer valve port (5,8) pipe fitting, coaxial in pipe fitting a sliding stem is housed, in the valve rod, outer two is respectively equipped with in the shutoff, outer valve port (5,8) pressure regulation valve head (9) and cut-out valve head (7), the inboard of pressure regulation valve head (9) is in transmission connection by rocking arm (11) and a vertical mobile jib (15) that is arranged on the lower chambers middle part, upper end at mobile jib (15) is fixed with permanent magnet (13) by spring tray (16), is pressed with lower spring (12) between spring tray (16) periphery and armature disc (2) periphery.

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