CN2436918Y

CN2436918Y - Intelligent gas meter electromechanical valve

Info

Publication number: CN2436918Y
Application number: CN 00241249
Authority: CN
Inventors: 章庆洪; 崔勇; 舒志
Original assignee: JIANGXI PROVINCIAL DESIGN AND RESEARCH INST OF MACHINERY INDUSTRY
Current assignee: JIANGXI PROVINCIAL DESIGN AND RESEARCH INST OF MACHINERY INDUSTRY
Priority date: 2000-07-13
Filing date: 2000-07-13
Publication date: 2001-06-27
Anticipated expiration: 2010-07-13

Abstract

The utility model discloses an intelligent gas meter electromechanical valve comprising an upper valve body and a lower valve body; air inlet holes and air outlet holes are processed on the upper and the lower valve bodies; the utility model is characterized in that a speed reducing motor outputs torque to a main shaft which is provided with an eccentric shaft for lifting up and down to open or to close the valve; a valve core, a spring, a core shaft, a press plate, a rubber and a valve port form flexible contact to ensure that the rubber and the valve port are mutually folded under a certain pressure state so that an air flue is completely cut off to close the valve. A photoelectric tube and a light blocking sheet can detect the signals of opening or closing valve to automatically control the opening or the closing of the valve. The utility model has the advantages of very reliable performance, no internal leakage, no external leakage, low pressure loss, long service life, good explosion-proof performance and simple structure.

Description

The intelligent gas meter electromechanical valve

The utility model relates to valve, especially relates to the electromechanical valve in the intelligent gas meter that a kind of piped gas, rock gas use.

The domestic intelligent gas meter of developing adopts solenoid valve more at present, and its advantage is simple in structure, easily realizes control automatically, but shortcoming is that poor reliability, life-span are short, and particularly diamagnetic jamming performance is poor, is subject to artificial attack.It is bigger that solenoid valve will solve problem difficulties such as diamagnetic interference, interior leakage, crushing, life-span.

The purpose of this utility model provides a kind of intelligent gas meter electromechanical valve that adopts flexible contact switching valve, its performance is very reliable, non-internal leakage, leak outside, crushing is low, long service life, explosion-proof performance are good, and is and simple and reasonable for structure and easily realize the automatic control of valve.

The purpose of this utility model is achieved in that the utility model comprises upper valve body and following valve body, the upper valve body top is processed with air admission hole, following valve body lower end is provided with valve and venthole, between upper valve body and the following valve body O-ring seal is installed, upper valve body and following valve body constitute air chamber, feature is that the side at upper valve body is processed with side opening, lid is installed in side opening, and will cover thoroughly with screw and be fastened on the upper valve body, main shaft is installed in the lid, the end of main shaft outside upper valve body connects with reducing motor by shaft coupling, end in air chamber is equipped with excentric shaft, excentric shaft connects with connecting rod, insert in the groove of spool the lower end of connecting rod, by bearing pin connecting rod is connected with spool, spool moves up and down in guide ring, middle processing round-meshed " recessed " oblique crank Z cover screws in the spool bottom threadably, and it is concordant with the spool bottom, be placed with spring in the inner chamber that between spool and axle sleeve, forms, spool is withstood in the spring upper end, the lower end is against on the top of mandrel, the top card of mandrel is in bore sleeve, the circular hole of axle sleeve is passed at the middle part of mandrel, the lower end is fastening with pressing plate and rubber with nut, rubber under the pressing plate and valve port are closely superimposed, between pressing plate and the spool certain interval are arranged, the motion of ammunition feed spring.

Between saturating lid and the upper valve body O-ring seal is installed, is with two " O " circle that seals thoroughly between lid and the main shaft.

On the supporting plate between upper valve body and the reducing motor photoelectric tube is installed, light barrier is enclosed within on the shaft coupling, and stretches in the groove of photoelectric tube.

To the main shaft output torque, the excentric shaft that is installed on the main shaft is used for promoting or the decline spool the utility model by reducing motor, drives valve and closes the valve motion.When excentric shaft made spool be in bottom dead centre, spool was pressed together on rubber on the valve port by spring, mandrel, pressing plate, and this is flexible contact, guaranteed superimposedly mutually, play valve-off, otherwise valve was then opened in the spool rising.All adopt O-ring seal to realize static seal thoroughly between lid and the upper valve body up and down between the valve body.Light barrier and photoelectric tube are used for gathering the valve switch positional information, to realize the automatic control of controlled valve.The utlity model has that performance is very reliable, non-internal leakage, leak outside, crushing is low, long service life, explosion-proof performance are good, simple and reasonable for structure, easily realize the advantage of the automatic control of controlled valve, be suitable for and the supporting use of intelligent gas meter.

Fig. 1 is a structural representation of the present utility model.

Below in conjunction with embodiment and contrast accompanying drawing the utility model is described in further detail.

The utility model comprises upper valve body 1 and following valve body 18, upper valve body 1 top is processed with air admission hole 2, following valve body 18 lower ends are provided with valve port 19 and venthole 17, between upper valve body 1 and the following valve body 18 O-ring seal 24 is installed, upper valve body 1 and following valve body 18 constitute air chamber 31, side at upper valve body 1 is processed with side opening 5, in side opening 5, be equipped with and cover 6, and will cover 6 thoroughly with screw and be fastened on the upper valve body 1, between saturating lid 6 and the upper valve body 1 O-ring seal 15 is installed, main shaft 8 is installed in and covers in 6, and be with two " O " circle 7 that seals, the end of main shaft 8 outside upper valve body 1 connects with the output shaft 11 of reducing motor 12 by shaft coupling 9, the end of main shaft 8 in air chamber 31 is equipped with excentric shaft 4, excentric shaft 4 connects with connecting rod 3, insert in the groove of spool 29 lower end of connecting rod 3, by bearing pin 30 connecting rod 3 and spool 29 are connected, spool 29 moves up and down in guide ring 23, the centre is processed with circular hole 16 " recessed " oblique crank Z cover 26 and screws in spool 29 bottoms threadably, and it is concordant with spool 29 bottoms, be placed with spring 27 in the inner chamber 28 that between spool 29 and axle sleeve 26, forms, spool 29 is withstood in spring 27 upper ends, the lower end is against on the top of mandrel 25, the top card of mandrel 25 is in the inner chamber 28 of axle sleeve 26, the circular hole 16 of axle sleeve 26 is passed at the middle part of mandrel 25, the lower end uses nut 20 with pressing plate 22, rubber 21 is fastening, rubber 21 under the pressing plate 22 is closely superimposed with valve port 19, between pressing plate 22 and the spool 29 the 3mm gap is arranged, 27 motions of ammunition feed spring.

On the supporting plate 14 between upper valve body 1 and the reducing motor 12 photoelectric tube 13 is installed, light barrier 10 is enclosed within on the shaft coupling 9, and stretches in the groove of photoelectric tube 13.

During use, plug in, the output shaft 11 of reducing motor 12 is to main shaft 8 output torques, driving main shaft 8 rotates, main shaft 8 drives excentric shaft 4 again and makes circular motion, excentric shaft 4 is with regard to drivening rod 3, spool 29 moves up and down along guide ring 23 in air chamber 31, be used for promoting or decline spool 29, when being moved downward to bottom dead centre, spool 29 downward pressuring springs 27 press down mandrel 25 by spring 27, mandrel 25 moves down drive pressing plate 22 and rubber 21 moves down, rubber 21 is closely superimposed with valve port 19, and venthole 17 is blocked, and prevents that gas from entering venthole 17 from air chamber 31.When moving up, spool 29 rises (this moment, spring 27 was not subjected to the external force effect) along guide ring 23, and mandrel 25, pressing plate 22, rubber 21 move up together, and rubber 21 breaks away from valve port 19, and venthole 17 is opened, and gas can enter venthole 17 from air chamber 31.

Light barrier 10 is along with shaft coupling 9 rotates together, and the light that the luminotron in the photoelectric tube 13 sends goes to some positions at light barrier 10 and received by photoelectric tube, thereby can judge that valve is in out valve or close valve state.

Claims

1, a kind of intelligent gas meter electromechanical valve, comprise upper valve body (1) and following valve body (18), upper valve body (1) top is processed with air admission hole (2), following valve body (18) lower end is provided with valve port (19) and venthole (17), between upper valve body (1) and the following valve body (18) O-ring seal (24) is installed, upper valve body (1) and following valve body (18) constitute air chamber (31), it is characterized in that: the side at upper valve body (1) is processed with side opening (5), lid (6) is installed in side opening (5), and will cover (6) thoroughly with screw and be fastened on the upper valve body (1), main shaft (8) is installed in the lid (6), the end of main shaft (8) outside upper valve body (1) connects with the output shaft (11) of reducing motor (12) by shaft coupling (9), the end of main shaft (8) in air chamber (31) is equipped with excentric shaft (4), excentric shaft (4) connects with connecting rod (3), insert in the groove of spool (29) lower end of connecting rod (3), by bearing pin (30) connecting rod (3) and spool (29) are connected, spool (29) moves up and down in guide ring (23), " recessed " oblique crank Z cover (26) that the centre is processed with circular hole (16) screws in spool (29) bottom threadably, and it is concordant with spool (29) bottom, be placed with spring (27) in the inner chamber (28) that between spool (29) and axle sleeve (26), forms, spool (29) is withstood in spring (27) upper end, the lower end is against on the top of mandrel (25), the top card of mandrel (25) is in the inner chamber (28) of axle sleeve (26), the circular hole (16) of axle sleeve (26) is passed at the middle part of mandrel (25), the lower end uses nut (20) with pressing plate (22), rubber (21) is fastening, rubber (21) under the pressing plate (22) is closely superimposed with valve port (19), between pressing plate (22) and the spool (29) certain interval is arranged, the motion of ammunition feed spring.

2, intelligent gas meter electromechanical valve as claimed in claim 1, it is characterized in that: on the supporting plate (14) between upper valve body (1) and the reducing motor (12), photoelectric tube (13) is installed, light barrier (10) is enclosed within on the shaft coupling (9), and stretches in the groove of photoelectric tube (13).

3, intelligent gas meter electromechanical valve as claimed in claim 2 is characterized in that: between saturating lid (6) and upper valve body (1) O-ring seal (15) is installed, is with two " O " circle that seals between saturating lid (6) and the main shaft (8).