CN206638378U - A kind of pressure tester - Google Patents

Abstract

A kind of pressure tester that the utility model is related to, it includes conduit, first retainer ring, film, guide rod, limiting plate, elastic device, second retainer ring, gear plate, rotate gear, rotating shaft, dial plate and pointer, the pipe inner wall is fixed with the first retainer ring, film is installed on the outside of first retainer ring, the guide rod is located in the first retainer ring, limiting plate is fixed with the guide rod, the limiting plate upper end is fixed with elastic device, the elastic device is enclosed on guide rod, the conduit upper end is provided with the second retainer ring, gear plate is fixed with the top of the guide rod, the gear plate engages connection with rotate gear, rotating shaft is fixed among the rotate gear, the both ends of the rotating shaft are rotatablely connected by bearing and dial plate, pointer is fixed with the top of the rotation.A kind of pressure tester of the utility model, applied to Reduction of High Pressure Pneumatic valve so that it possesses pressure detecting function, so as to judge that the pressure of air inlet pipe and escape pipe is specific, is easy to the regulation of pressure.

Description

A kind of pressure tester

Technical field

A kind of pressure tester is the utility model is related to, applied to Reduction of High Pressure Pneumatic valve, belongs to pressure-reducing valve technical field.

Background technology

Pressure-reducing valve is the outlet pressure that inlet pressure is reduced to a certain needs by regulation, and relies on the energy of medium in itself Amount, outlet pressure is set to keep stable valve automatically.From the viewpoint of hydrodynamics, pressure-reducing valve is that a local resistance can become The restricting element of change, i.e., by changing orifice size, change the kinetic energy of flow velocity and fluid, cause the different pressure losses, from And reach the purpose of decompression.Then by control and the regulation of regulating system, the fluctuation and spring force for making downstream pressure balance each other, Downstream pressure is set to keep constant in certain error range.

Existing pressure-reducing valve does not possess pressure-detecting device, so as to judge that the pressure of air inlet pipe and escape pipe is specific, So as to be not easy to the regulation of pressure.

The content of the invention

A kind of the purpose of this utility model is to overcome above-mentioned deficiency, there is provided high pressure gas applied to Reduction of High Pressure Pneumatic valve Dynamic pressure-reducing valve.

What the purpose of this utility model was realized in：

A kind of pressure tester, it includes conduit, the first retainer ring, film, guide rod, limiting plate, elastic device, the second fixation Ring, gear plate, rotate gear, rotating shaft, dial plate and pointer, the pipe inner wall are fixed with the first retainer ring, and described first fixes Film is installed on the outside of ring, the guide rod is located in the first retainer ring, is fixed with limiting plate on the guide rod, on the limiting plate End is fixed with elastic device, and the elastic device is enclosed on guide rod, and the conduit upper end is provided with the second retainer ring, the guide rod Top is fixed with gear plate, and the gear plate engages connection with rotate gear, and rotating shaft is fixed among the rotate gear, described The both ends of rotating shaft are rotatablely connected by bearing and dial plate, and pointer is fixed with the top of the rotation.

Preferably, coordinate between the guide rod and the first retainer ring and the second retainer ring for gap.

Preferably, dial is provided between the pointer and rotate gear.

Compared with prior art, the beneficial effects of the utility model are：

A kind of pressure tester of the utility model, applied to Reduction of High Pressure Pneumatic valve, first by the way that pressure tester is arranged on Air inlet pipe and escape pipe, power is acted to film by the gas pressure of air inlet pipe and outlet Bottomhole pressure, passes through film Active force can promote guide rod to move, due to driving gear plate to move by guide rod, because rotate gear and gear plate engage, from And rotate gear is driven indicators turn, it so as to facilitate the pressure of detection gas, and can return guide rod by elastic device Position.

Brief description of the drawings

Fig. 1 is the structural representation that the utility model is applied to Reduction of High Pressure Pneumatic valve；

Fig. 2 is the utility model pressure tester structural representation；

Fig. 3 is the utility model pivot structure schematic diagram.

In figure：1- valve bodies；2- pressure testers；3- threaded rods；4- supporting plates；The springs of 5- first；6- backing plates；7- diaphragms；8- Valve element；9- inner chambers；10- baffle plates；11- second springs；12- air inlet pipe；13- escape pipes；14- conduits；The retainer rings of 15- first；16- Film；17- guide rods；18- limiting plates；19- elastic devices；The retainer rings of 20- second；21- gear plates；22- rotate gears；23- turns Axle；24- dial plates；25- pointers；26- screws handle；27- safety valves；28- valve pockets.

Embodiment

Referring to Fig. 1-Fig. 3, a kind of Reduction of High Pressure Pneumatic valve that the utility model is related to, including valve body 1 and pressure tester 2, The valve body 1 include valve pocket 28, threaded rod 3, supporting plate 4, the first spring 5, backing plate 6, diaphragm 7, valve element 8, inner chamber 9, baffle plate 10, Second spring 11, air inlet pipe 12 and escape pipe 13, the top of valve pocket 28 are connected by screw thread with threaded rod 3, the threaded rod 3 Bottom is fixedly connected with supporting plate 4, and the top of first spring 5 is fixed on the bottom of supporting plate 4, the bottom of the first spring 5 Be fixedly connected with the top of backing plate 6, the side of the backing plate 6 is connected by diaphragm 7 with the inwall of valve pocket 28, the bottom of backing plate 6 with Valve element 8 is fixedly connected, and the bottom of valve element 8 is located inside inner chamber 9, and the bottom of valve element 8 is fixed with baffle plate 10, the baffle plate 10 Bottom is fixedly connected with second spring 11, and the bottom of the second spring 11 is fixed on the bottom of inner chamber 9, the side of inner chamber 9 with Air inlet pipe 12 connects, and described one end of valve body 1 connects with escape pipe 13, and the air inlet pipe 12 and the upper end of escape pipe 13 are mounted on surveying Pressure device 2, the pressure tester 2 include conduit 14, the first retainer ring 15, film 16, guide rod 17, limiting plate 18, elastic device 19th, the second retainer ring 20, gear plate 21, rotate gear 22, rotating shaft 23, dial plate 24 and pointer 25, the inwall of conduit 14 are fixed There is the first retainer ring 15, the outside of the first retainer ring 15 is provided with film 16, and the guide rod 17 is located in the first retainer ring 15, Limiting plate 18 is fixed with the guide rod 17, the upper end of limiting plate 18 is fixed with elastic device 19,19 sets of the elastic device On guide rod 17, the upper end of conduit 14 is provided with the second retainer ring 20, and the top of the guide rod 17 is fixed with gear plate 21, described Gear plate 21 engages connection with rotate gear 22, and rotating shaft 23, the both ends of the rotating shaft 23 are fixed among the rotate gear 22 It is rotatablely connected by bearing and dial plate 24, pointer 25 is fixed with the top of the rotation.

Coordinate between the retainer ring 15 of guide rod 17 and first and the second retainer ring 20 for gap, the top of threaded rod 3 It is fixed with and screws handle 26, the side of valve body 1 is provided with safety valve 27, is provided with and carves between the pointer 25 and rotate gear 22 Scale.

Operation principle：When in use, first by the way that pressure tester 2 is arranged on air inlet pipe 12 and escape pipe 13, by entering The gas pressure of flowing acts power to film 16 in tracheae 12 and escape pipe 13, can be promoted by the active force of film 16 Guide rod 17 moves, due to driving gear plate 21 to move by guide rod 17, because rotate gear 22 and gear plate 21 engage, so that Rotate gear 22 drives pointer 25 to rotate, and so as to facilitate the pressure of detection gas, and can make guide rod by elastic device 19 17 returns.

Claims (3)

1. A kind of 1. pressure tester（2）, it is characterised in that it includes conduit（14）, the first retainer ring（15）, film（16）, guide rod （17）, limiting plate（18）, elastic device（19）, the second retainer ring（20）, gear plate（21）, rotate gear（22）, rotating shaft（23）、 Dial plate（24）And pointer（25）, the conduit（14）Inwall is fixed with the first retainer ring（15）, first retainer ring（15）Outside Side is provided with film（16）, the guide rod（17）Positioned at the first retainer ring（15）It is interior, the guide rod（17）On be fixed with limiting plate （18）, the limiting plate（18）Upper end is fixed with elastic device（19）, the elastic device（19）It is enclosed on guide rod（17）On, it is described Conduit（14）Upper end is provided with the second retainer ring（20）, the guide rod（17）Top be fixed with gear plate（21）, the gear plate （21）With rotate gear（22）Engagement connection, the rotate gear（22）Centre is fixed with rotating shaft（23）, the rotating shaft（23）'s Both ends pass through bearing and dial plate（24）It is rotatablely connected, pointer is fixed with the top of the rotation（25）.
2. A kind of 2. pressure tester according to claim 1（2）, it is characterised in that：The guide rod（17）With the first retainer ring （15）With the second retainer ring（20）Between for gap coordinate.
3. A kind of 3. pressure tester according to claim 1（2）, it is characterised in that：The pointer（25）With rotate gear （22）Between be provided with dial.