CN2534564Y - Electronic gas combustion meter with built-in valve - Google Patents

Abstract

The utility model relates to a gas control valve used in an electronic gas meter, in particular to an electronic gas meter provided with a built-in motor valve. The application technology of the patent is mainly used to solve the defect of the prior gas meter unable to arrange the built-in motor valve. The valve body of the motor valve is arranged in an air inlet pipe of a shell; a microminiature DC motor special for portable camera drives a lead-screw lead-nut rubber piston mechanism, thus forming a controllable inner piston of the motor valve. The technology makes full use of the space in the air inlet pipe without changing the structure and size of the module in the meter. The utility model has the characteristics of strong universality, good structural integration and obviously lower cost than the prior gas meter.

Description

If the electronic gas table of built-in valve

Technical field the utility model relates to electronics and becomes the electronic gas table technology of sending the induction metering method to measure gas consumption, the in particular architecture advances of its electric machine valve.

Blast tube in the background technology electronic gas table must install solenoid valve or electric machine valve additional, and break-make management and control are implemented in combustion gas.The gas meter, flow meter inner structure is very compact, so in existing watch shell, install valve-embedded just difficult unusually, have no alternative but at the air intake opening position of off-balancesheet portion setting external valve 6 as shown in Figure 1, because the setting of external valve makes the profile of gas meter, flow meter and general gas table widely different, must carry out special protection to external valve portion handles, the place, gas outlet is equipped with pipe arrangement with it when mounted, give job design, allotment is installed, maintenance and packing, transportation causes a lot of inconvenience, therefore design universal gas by-pass valve control with embedding structure characteristic, become the major subjects of present electronic gas table technological improvement, also be big technological difficulties, its reason is that existing gas control valve is generally selected for use and takies the bigger sound-track engraving apparatus direct current micromotor of volume, but table inner part compact conformation, there is not unnecessary space to be used for being provided with the built-in valve body of this type, though minority youngster plants phenotype and adopts valve-embedded structure, but its technology has been subjected to very big restriction: 1. narrow because of the space of movement top air inlet parts, so it is mostly that valve body is in aggregates with the outlet pipe design in the table, can be again because of outlet pipe structure in the table of each type has nothing in common with each other, so can't realize general; 2. a kind of gas meter, flow meter of producing of the excellent anti-gas meter in Beijing company limited, taked to be provided with the frame mode of electromagnetic valve body in the air intake opening inboard, because of being subjected to the restriction of installing space equally, it is with valve body 17 horizontally sets, and this structure can only be installed on specific gas meter, flow meter itself, do not possess universal performance equally.In sum, key is the inner nothing of gas meter, flow meter space more than needed, and existing built-in valve body structure and set-up mode do not possess versatility widely, because there are above-mentioned many deficiencies in the operation valve technology of existing gas meter, flow meter, so it demands urgently improving.

Summary of the invention the utility model patented claim key problem in technology will solve how combustion gas control electric machine valve is set in existing gas meter, flow meter table body, and don't influences and change the electronic gas table technology of table external and internal compositions, the general mounting characteristics of realization.The disclosed electronic gas table of establishing built-in valve of technical solutions of the utility model, it includes the movement mechanism in the watch shell, shell and air intake opening, the gas outlet of combustion gas, the technical program is to be located at the motor valve body whether the control combustion gas in the watch shell air inlet tube circulates with different being in its built-in motor valve of major technique of prior art, on the neck, the driven by motor leading screw screw plug mechanism identical with the microminiature direct current generator of portable camera special use constituted the controlled interior plug of motor valve body in the interior cover of valve port that has the valve port catch was fixedly set in and takes over.The technical program by select for use diameter have only the sound-track engraving apparatus direct current micromotor half, keep the microminiature direct current generator of the portable camera special use of the electrical performance indexes be equal to it and mechanical performance index, the volume of built-in valve is dwindled greatly, structure also greatly simplifies, therefore on the basis that does not influence table cassette mechanism structure size for being installed on the motor valve body in the gas meter, flow meter air inlet tube, making full use of in its body the space and created condition, and realized unifying and stablizing constantly of gas meter, flow meter profile, promptly can install and use at various types of gas meter, flow meters.Warp is to the structure of all types of gas meter, flow meters and scrutinizing of aerodynamic characteristic, it takes over internal diameter size much all is identical, even its difference of the difference that has is also very little, can make it the installation requirement that reaches general through simple machining, so the versatility of present technique is very good, be to be applicable to the built-in motor valve that is installed on the various homemade gas meter, flow meters, the more existing gas meter, flow meter technology of its cost has obvious reduction.

Description of drawings

Fig. 1 is for showing the structural representation of the electrically operated valve installation site that has gas meter, flow meter now

Fig. 2 is total assembling structure cross-sectional schematic of the air inlet parts of the utility model patented claim technology

The structural representation that electrically connects parts that Fig. 3 draws in show for electricity consumption part in the gas meter, flow meter.

The installation of embodiment gas control valve preferably neither influences cassette mechanism structure in the table, do not change the structure and the size of watch shell or gas connection pipe yet, technology provided by the utility model promptly is to be design premises with above-mentioned standard, utilize space in its table air inlet tube, electric machine valve is arranged in the caliber of air inlet tube, Fig. 2 has provided it concrete structure example of structure has been set, be provided with at its air intake opening 9 places when the gas meter, flow meter finished product dispatches from the factory with the gas inlet pipe mouth air inlet tube 1 that is connected is installed, in the neck of this adapter 1 fixedly suit cover 2 in one valve port, the radial position of cover 2 is provided with the catch 4 of band center valve port in the valve port, its center valve port is the critical point that is used to connect combustion gas, and be mated the shutoff that realizes combustion gas and open-minded by plug 5, plug 5 is to be driven to have by the special-purpose microminiature direct current generator 8 of portable camera to become the rectilinear motion that the leading screw screw mechanism that send case 7 realizes plug 5, on the catch 4 that moves with the center valve port interact, valve port is blocked, valve-off, move down, leave the center valve port that catch 4 constitutes, allow combustion gas to flow in the table, make plug constitute the controlled interior plug of its valve.The diameter of the special-purpose microminiature direct current generator of portable camera has only half of sound-track engraving apparatus direct current micromotor diameter, generally be not more than 12mm, and the performance of its electrical property and mechanical property and sound-track engraving apparatus direct current micromotor is very nearly the same, therefore can reach the performance requirement of valve body action fully, and the dwindling of its volume, for the simplification of integral valve door be contained in the entrance sleeve 1 and created condition.The structure that the electricity of the utility model built-in motor valve and movement becomes the electric connecting part that send measuring apparatus as shown in Figure 3, this electric connecting part is hidden two groups of bodies of bolt 10 that are electrically connected guide rods 3 for being made by the plastic material injection moulding of anti-exhaust gas corrosion, guide rod 3 two ends are exposed to this body of bolt 10 both sides, wherein one group of guide rod is used to connect the motor of valve, another group guide rod is used to connect electricity metering change and send parts, the body of bolt 10 1 sides have passes the external thread 11 that watch shell cooperates with the nut of outside, the body of bolt 10 opposite sides are provided with the cylinder 13 that has axial notch 12, be used to place the magnetic strength strain in its groove 12 and send element, the key stage casing is provided with positioning boss 14, external thread one side of this boss 14 is provided with the ring groove 15 that is used to place O-ring seal, to realize the sealing of combustion gas.The design of this electric connecting part has realized the globality that electrically connects structure and the unitarity of electricity work part in the table.

Claims (2)

1, a kind of electronic gas table of establishing built-in valve, it comprises air intake opening, the gas outlet of watch shell, the interior movement mechanism of shell and combustion gas, it is characterized in that its electric machine valve is for being arranged at the motor valve body in the watch shell air inlet tube (1), the interior cover of valve port (2) that wherein has valve port catch (4) is fixedly set on the interior neck of air inlet tube (1), and the motor (8) identical with the microminiature direct current generator of portable camera special use drives controlled interior plug that leading screw screw plug mechanism constitutes the motor valve body.

2, electronic gas table according to claim 1, it is characterized in that electric machine valve and electricity metering become the hide two group bodies of bolt (10) that are electrically connected guide rod (3) of electric connecting part into being made by the plastic material injection moulding of anti-exhaust gas corrosion that send parts, guide rod (3) two ends are exposed to the both sides of the body of bolt (10), its key (10) one sides have passes the external thread (11) that watch shell cooperates with the nut of outside, the key opposite side is provided with the cylinder (13) that has axial notch (12), the key stage casing is provided with positioning boss (14), and external thread one side of this boss is provided with the ring groove (15) that is used to place O-ring seal.

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