CN201636337U

CN201636337U - Intelligent control valve for gas meter

Info

Publication number: CN201636337U
Application number: CN2010201000612U
Authority: CN
Inventors: 高翔
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-01-18
Filing date: 2010-01-18
Publication date: 2010-11-17
Anticipated expiration: 2020-01-18

Abstract

The utility model discloses an intelligent control valve for a gas meter. The intelligent control valve adopts the structure that an end cover is arranged at the output gear end of a shell internally connected with a motor to form a transmission inner chamber; a gear and a worm which are in parallel connection are rotationally connected with a fixed shaft arranged in the transmission inner chamber and are meshed with the output gear of the motor and a worm gear in rotational connection with the transmission inner chamber correspondingly; the worm gear is connected in parallel with the gear and is meshed with a rack connected with a guide rod in the transmission inner chamber in a sliding manner; a return spring is connected with the guide rod between the output gear end of the motor and the rack; one end of a compression bar penetrates a through hole of the end cover and then connected with the rack; another return spring is connected with the compression bar between the end surface of the end cover and the rack; and the other end of the compression bar is connected with a sealing gasket corresponding to an air outlet hole of the shell. The intelligent control valve adopts the motor output gear to drive the gear worm, the worm gear and the rack transmission pair to conduct forward and reverse transmission, so that the gas valve can be controlled to open or close, the operation is stable and reliable, and the open and close are accurate and flexible, thereby effectively protecting the economic benefits of gas consumers and gas suppliers.

Description

The gas meter intelligent control valve

(1) technical field: the utility model relates to the control gear that fuel gas pipeline is opened or closed; The gas meter intelligent control valve that is specifically related to use on the gas pipeline.

(2) background technique: in the prior art, use the metering and the toll administration of combustion gas (as coal gas) in the urban and rural households life, normally realize the unlatching of user's gas pipeline automatically or close by being connected in pattern gas meter control gear in user's building gas pipe, service pipe, indoor pipe, to realize fuel gas supply side, in use carry out quantitatively, regularly monitor occupying the gas consumption that domestic gas side buys in advance.Said control gear generally is to realize the unlatching of fuel gas pipeline or cut out by the straight line motion that is connected with the bistable electromagnetic switch valve on the fuel gas pipeline.Because magnetic switch valve events reliability is poor, switch valve is inaccurate nimble, the user in use often has the following disadvantages: the one, because of fuel gas pipeline is subjected to vibrations (maintenance is collided as fuel gas pipeline), easily make control gear out of control, often cause to occupy domestic gas side forward purchasing combustion gas and just do not use up and close gas valve too early, had a strong impact on the economic benefits that occupy domestic gas side; The 2nd, electromagnetic switch valve uses for a long time, the parts that interconnect cooperation in its valve body are prone to adhesion phenomenon, when the resident purchases gas quantity in advance when using up, need to close gas valve by control gear immediately, but can not promptly and accurately close, but cause still use without compensation combustion gas of resident, grievous injury the economic benefits of fuel gas supply side.

(3) summary of the invention: at the deficiency of above-mentioned prior art existence, the purpose of this utility model is to provide a kind of gas meter intelligent control valve, be intended to control the unlatching of fuel gas pipeline timely and accurately or close, effectively safeguard to occupy domestic gas side and fuel gas supply side both sides' economic benefits.

For achieving the above object, technological scheme of the present utility model is achieved in that this gas meter intelligent control valve, comprises housing and motor; It is the output gear end that is connected with motor in housing, is provided with end cap and constitutes the transmission inner chamber; Be provided with on the stationary axle at described transmission inner chamber, be rotatably connected with in parallel gear and worm screw, with motor output gear with rotate the corresponding engagement of worm gear that is connected in the transmission inner chamber; Be parallel with gear on the described worm gear, the tooth bar that is connected on its transmission inner chamber guide rod with slip meshes; On one of them guide rod between motor output gear end and the tooth bar, be connected with Returnning spring; Depression bar one end runs through the end cap through hole and tooth bar joins; On the depression bar between end cap end face and the tooth bar, be connected with Returnning spring; The sealing gasket that the depression bar the other end is connected with is corresponding with the housing air outlet hole.

The utility model is taked said structure, do forward and reverse transmission by motor output gear actuation gear worm screw, worm-gear toothing, tooth bar transmission, the depression bar drive sealing gasket of having realized being connected on the tooth bar is done linear reciprocating motion, reached the unlatching of control gas valve respectively or closed, move reliable and stable, switch is accurately nimble, has safeguarded the economic benefits that occupy domestic gas side and fuel gas supply side both sides effectively.

(4) description of drawings: Fig. 1 looks sectional view for master of the present utility model;

Fig. 2 is the vertical view cutaway drawing of Fig. 1;

Fig. 3 looks sectional view for the left side of Fig. 1.

(5) embodiment: Fig. 1-shown in Figure 3.This gas meter intelligent control valve comprises housing and motor; It is the output gear end that is connected with motor 4 in housing 2, is provided with end cap 6 and constitutes the transmission inner chamber; Be provided with on the stationary axle 18 at described transmission inner chamber, be rotatably connected with in parallel gear 12 and worm screw 11, with motor output gear 13 with rotate the worm gear 20 corresponding engagements (Fig. 1, shown in Figure 2) that are connected in its transmission inner chamber; Be parallel with gear 19 on the described worm gear 20, the tooth bar 9 that is connected on its transmission inner chamber guide rod 8 and 16 with slip meshes (Fig. 1, shown in Figure 3); On one of them guide rod between motor output end and the tooth bar 9, be connected with Returnning spring 10; Depression bar 5 one ends run through end cap 6 through holes and tooth bar 9 joins; On the depression bar 5 between end cap 6 end faces and the tooth bar 9, be connected with Returnning spring 7; The sealing gasket 4 that depression bar 5 the other ends are connected with is corresponding with housing air outlet hole 1.During use, the utility model is installed in the pattern gas meter that is connected on the fuel gas pipeline usually, and the suction port 3 on its housing 2 links to each other with the gas meter suction port is airtight; 1 airtight the joining of air outlet of its rubber gasket 4 and housing 2, be throttle down state (Fig. 1, shown in Figure 2).This moment, motor 14 counterrotatings quit work, and tooth bar pressure spring 7 moves to left, and guaranteed that tooth bar 9 teeth are in the initial engagement state that is about to separate with gear 19 gear teeth.When the fuel gas supply root is bought combustion gas and is needed Open valve according to the resident.The utility model sends starting-up signal, motor 14 is rotated in the forward by gear 13, driven gear 12 and worm screw 11, worm gear 20 and gear 19 rotate, and this hour rack 9 moves to right under the elastic force effect of Returnning spring 7, and the rubber gasket 4 of depression bar 5 ends and the air outlet 1 of housing are opened.Sliding along guide rod 8 and 16 at tooth bar 9 moves to right also that compression reseting spring 10 shrinks, and when tooth bar 9 moves to right when making its tooth be in the initial engagement state that is about to separate with gear 19 gear teeth, motor 14 quits work.In the time of need stopping to supply with resident's combustion gas by the utility model as fuel gas supply side, do reversing drive by motor output gear actuation gear worm screw, worm-gear toothing, tooth bar transmission, realization is connected in depression bar on the tooth bar and drives sealing gasket and do the straight line motion that moves to left, and reaches close (Fig. 1, shown in Figure 2) that controls housing air outlet 1.

The above only is a preferred implementation of the present utility model.Be noted that for the person of ordinary skill of the art; under the prerequisite that does not break away from the principle of the invention; need not other technical characteristics that the process creative work just can be associated; can also make some modification and improvement; these variations should be considered as equivalent feature, all belong within the protection domain of the utility model patent.

Claims

1. a gas meter intelligent control valve comprises housing and motor; It is characterized in that: in housing (2), be connected with the output gear end of motor (14), be provided with end cap (6) and constitute the transmission inner chamber; Be provided with on the stationary axle (18) at described transmission inner chamber, be rotatably connected with in parallel gear (12) and worm screw (11), be connected in the corresponding engagement of worm gear (20) of transmission inner chamber with motor output gear (13) and rotation; Be parallel with gear (19) on the described worm gear (20), the tooth bar (9) that is connected on its transmission inner chamber guide rod (8) and (16) with slip meshes; On one of them guide rod that is positioned between motor output gear end and the tooth bar (9), be connected with Returnning spring (10); Depression bar (5) one ends run through end cap (6) through hole and tooth bar (9) joins; On the depression bar (5) that is positioned between end cap (6) end face and the tooth bar (9), be connected with Returnning spring (7); The sealing gasket (4) that depression bar (5) the other end is connected with is corresponding with housing air outlet hole (1).