CN1202617A

CN1202617A - Preset gas meter

Info

Publication number: CN1202617A
Application number: CN 98111922
Authority: CN
Inventors: 朱建
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-03-27
Filing date: 1998-03-27
Publication date: 1998-12-23
Anticipated expiration: 2018-03-27
Also published as: CN1124471C

Abstract

On the basis of magnetic card and IC card technology, the present invention has one energy accumulator with spiral spring. During the preset number is input to gas meter, the motor inputs energy to the spiral spring; during gas is consumed, the spiral spring is released via gear system and control escapement with the released amount being displayed; and when the preset amount is used up, the gas valve is closed. The gas meter uses no electricity during the gas is used, so it has no power source produced fault. In addition, it has also prepayment function.

Description

Preset gas meter

The present invention relates to a kind of preset gas meter that can carry out the overall control of flow to combustion gas.

Present widely used gas meter, flow meter has only the function of metered flow, does not have the control function of flow total amount.Use this gas meter, flow meter, make making an inventory and fee collection that the management enterprise cost lot of manpower and material resources of gas supply shows, and have the un-reasonable phenomenon of charging behind the first air feed.

For addressing this problem, the present basic practice is to adopt ripe magnetic card and IC-card technology on gas meter, flow meter.Proposed to adopt the technology of magnetic card in Chinese patent ZL93232140.1, proposed employing IC-card technology in Chinese patent ZL94225687.5, these schemes have all been introduced control circuit, have used electrically-controlled valve.Because the signals collecting of gas consumption data is needed uninterrupted power source, and during without gas, gas meter, flow meter also is in holding state at any time, the pass valve of electrically-controlled valve also needs bigger power, thus these schemes all with civil power or accumulator as the energy.Owing to increased the power requirement that can not cut off the power supply, new problem has appearred in aforementioned techniques, because civil power might have a power failure, battery may be used up, accumulator also may lose efficacy, so the circuit of gas meter, flow meter can occur because outage and out-of-work situation.Even if the employing lithium battery, and in economize on electricity, work hard, can not solve when the user uses gas, because power supply breaks down and makes gas meter, flow meter can not carry out the root problem of gage work.

The objective of the invention is to provide the preset gas meter after a kind of the improvement, it in the short time under the electricity condition, gas consumption preset input after, air valve closed all no longer electricity consumption automatically after metering, demonstration, the specified output of combustion gas output was finished.

The object of the present invention is achieved like this: adopt with the accumulator of flexible member clockwork spring as energy-storage travelling wave tube in the presetter device of preset gas meter, accumulator is with the input gearing mesh of output gear and train; The escape wheel of train end and controlled escapement lever are formed controlled release catch, and wherein controlled escapement lever has control arm, and control arm is arranged in the control structure of sending on the several members of sending of several mechanisms, or are limited in a side of sending several members by spring; With the gear of output gear and train, or the axle of output gear and gear gear, as the driving wheel or the driving shaft of registration and valve closing mechanism.Preset gas meter is being carried out gas consumption when presetting, the reducing motor in the accumulator is the clockwork intake in the accumulator with the rotation, makes driving wheel or drive shaft registration and valve closing mechanism do the demonstration that preset value increases simultaneously; Contain accumulator for accumulating energy, the opposite direction of its output gear during with energy storage is delivered to the terminal escape wheel of train by train with output torque; When using gas, control arm on the controlled escapement lever, sending the swing under the several motion limits of sending of several members sent of several mechanisms, make escape wheel to have the rotation of accurate quantity relation to discharge the clockwork energy stored with gas consumption, make the gear of train and the rotation of output gear also quantitative relation accurately be arranged simultaneously with gas consumption, thereby make driving wheel or driving shaft can give registration and valve closing mechanism, in order to the instant storage that shows preset value or close gas check valve with the accurate driving relevant with gas consumption.After gas consumption is preset, when combustion gas is exported, the instant playback of preset value storage, specified preset use up after the valve-closing of air valve, all utilize the clockwork spring output energy in the accumulator to finish.

In the present invention, have ratchet device in the output input link of clockwork and the kinematic train between the reducing motor output shaft in the accumulator, can make the unlikely output shaft that is delivered to reducing motor of the backward rotation of output input link the time on the clockwork with gas.

In the present invention, wheel be the input gear through the centre increase gear kinematic trains that are transferred to terminal escape wheel at different levels, in the train from escape wheel to the slow speed turbine stage direction, between the driving wheel or driving shaft of registration and valve closing mechanism, has a ratchet device, can make presetter device when intake, the rotation of the output gear of accumulator, unlikely biography is to the high speed utmost point and the escape wheel of train.

In the present invention, send the several members of sending of several mechanisms for sending the number pendulum, send the number pendulum on balance staff, to locate with its pilot hole that has, and match with its cylindrical void that has and the excentric shaft of metering on the output shaft, sending the limiting structure of number pendulum is spacing hole, the rotation of excentric shaft on the metering output shaft during with gas, make and send the number pendulum to swing around balance staff, so its number of oscillations is accurately relevant with gas consumption, be limited in the control arm that send number pendulum one side thereby make to be arranged in the spacing hole or, drive controlled escapement lever and do and accurately relevant swing of gas consumption by spring.

In the present invention, registration and valve closing mechanism are the screw-drive mechanism that screw axis and nut are formed.The rotation of screw axis under the driving of driving wheel or driving shaft can make nut do on the spiral accurate displacement relevant with preset value or gas consumption on the screw axis, has the thrust that can be used for closing valve of being amplified by gearing-down when nut is moved.

In the present invention, nut has the valve arrangement of closing spur rack structure and promotion face; Nut is with the spur rack structure and close the valve gearing mesh; The perhaps nut sector gear engagement of laying out with the sector of spur rack structure and valve closing mechanism; Perhaps nut directly promotes to reset certainly with promotion face and presses the pressure handle of valve.As driving link, have along the nut of the thrust of helical axis directions, can close valve arrangement with it, make Passive part make rotation or rectilinear motion, to close valve and to drive valve.

In the present invention, pointer is housed on the nut, pointer passes the elongated slot of stationkeeping.When screw axis rotated, nut is displacement vertically, and the pointer in elongated slot can show the storage of preset value, can prevent that nut from rotating simultaneously.

In the present invention, on the screw axis, maybe can have the input counting member that axially has plate-like of the gear of screw axis.By the rotation of record input counting member, can take out with in the relevant input data of the displacement of screw axis top nut.

In the present invention, the input of plate-like counting member is unthreaded hole dish or double wedge dish; Have one group of unthreaded hole on same radius in the unthreaded hole dish, the both sides of unthreaded hole position are provided with light-emitting tube and the light receiving tube that picks out from control circuit board; One group of double wedge is arranged on the excircle of double wedge dish, and double wedge is the pusher head of the counter switch that picks out from control circuit board.When presetting input, the input data relevant with the displacement of nut on screw axis, light-emitting tube and light receiving tube by unthreaded hole dish both sides are transformed into photosignal, perhaps promote counter switch and form the curtage signal by double wedge, control circuit carries out the instant accumulation of data according to signal, and the ratings that while and input are preset contrasts, and when preset value reaches the ratings that presets, stop the running of reducing motor, to stop input.

In the present invention, have travel switch at the side of screw axis, meeting and discussing on the nut is the pusher head of travel switch.Pointer for nut that once can not be on screw axis can be indicated the preset value of finishing in general the enclosing, travel switch can be control circuit provides preset gas meter to reach the signal of the maximum prefetch amount of putting, in time to stop the running of reducing motor by control circuit, stand-by gas then can be gone again and preset after the storage of preset value is reduced.

The present invention is the accumulator of energy-storage travelling wave tube owing to having adopted with the clockwork spring, energy output input mechanism as presetter device, gas meter, flow meter has been had to be used the electric energy in the short time of input preset value, in the time of the demonstration of the metering of combustion gas output, preset value storage, and preset value when being zero to the closing of air valve, equal characteristics of electricity consumption no longer; Because with respect to the whole life cycle of gas meter, flow meter, the service time of control circuit accumulation is very short, so circuit partly can have high relatively reliability; Because its control circuit is the control circuit of a motor rotation in essence, so circuit and control program are all fairly simple; Because the clockwork that is adopted, train, controlled escapement and screw-drive mechanism all can adopt the production technology of common maturation, so easily realize producing in a large number cheaply.

Concrete structure of the present invention is provided by following examples and accompanying drawing.

Fig. 1 is a kind of schematic appearance of the preset gas meter of proposition according to the present invention.

Fig. 2 is the preset gas meter that proposes according to the present invention, wherein the expansion synoptic diagram of presetter device.

Fig. 3 be among Fig. 2 A to, be the preset gas meter that proposes according to the present invention, the synoptic diagram of ratchet device I in its accumulator.

Fig. 4 be among Fig. 2 B to, be the preset gas meter that proposes according to the present invention, the synoptic diagram of the ratchet device II in its train.

Fig. 5 is the preset gas meter that proposes according to the present invention, and the several members of sending of several mechanisms that send wherein send the synoptic diagram of number pendulum.

Fig. 6 be Fig. 2 C to, be the preset gas meter that proposes according to the present invention, adopt the synoptic diagram that send several mechanisms that send the number pendulum.

Fig. 7 and Fig. 8 all be Fig. 2 D to, be the preset gas meter that proposes according to the present invention, the synoptic diagram of two kinds of organization plans of its controlled release catch.

Fig. 9 be Fig. 2 E to, be the preset gas meter that proposes according to the present invention, its screw-drive mechanism control rotary valve, and nut is with the synoptic diagram of pointer registration and anti-rotation.

Figure 10 is the preset gas meter that proposes according to the present invention, presses the synoptic diagram of valve from resetting with registration and valve closing mechanism control.With the F of Fig. 2 to mapping.

Figure 11 is the preset gas meter that proposes according to the present invention, when at former gas meter, flow meter top presetter device being set, presses the synoptic diagram of valve from resetting with the control of the nut on the screw-drive mechanism.

Figure 12 is the preset gas meter that proposes according to the present invention, adopts the synoptic diagram of double wedge dish as input counting member, with the G of Fig. 2 to mapping.

Above Fig. 1-Fig. 7 and Fig. 9 form an embodiment, and other Fig. 8, Figure 10, Figure 11, Figure 12 are local selectable other organization plans among the embodiment.

Describe the details and the working condition of the concrete device that proposes according to the present invention in detail below in conjunction with accompanying drawing.

Shown in Figure 1, preset gas meter has watchcase (19), air intake opening (1) and gas outlet (2), between the delivery outlet (8) of the table the inner (3) of gas outlet (2) and metering mechanism, has rotary valve (4), interior metering mechanism promotes by watchcase (19), be fixed in watchcase (19) and go up interior metering output shaft (7) rotation of isolation seat (5), the several gears (6) that send on the metering output shaft (7) drive counter (15) counting, counter (15) is arranged in the protective cover (14), protective cover (14) is provided with the deck (9) of magnetic card or IC, deck (9) has dust cap (13), also be provided with the control circuit board (12) of presetter device in the protective cover (14), the power supply that picks out from control circuit board and the control button (11) of input, display lamp (10) is arranged on the protective cover (14), also have to pick out from control circuit board (12) and can show the charactron (16) that presets total amount, elongated slot (17) is arranged on the dial plate (18).

Fig. 2-Fig. 7 and shown in Figure 9:

Accumulator is made up of reducing motor (20), clockwork (26) and the kinematic train between them; On the output shaft (21) of reducing motor (20), be fixed with ratchet I (24), the locating shaft I (53) of ratchet I (23) on last bar gear (22) that matches with ratchet I (24) goes up the location, and the engagement when guaranteeing last bar by the spring I (54) of reference column I (55) and shelves post I (56) location; Last bar gear (22) and output shaft (21) are for concerning movingly, and mesh with spring gear (25), accumulator is with gear shaft I (30) engagement of spring gear (25) with train, and spring gear (25) is the output input link of clockwork, is again the output gear of accumulator;

Train is formed with the level Four increase gear transmission of gear sheet III (33) and gear shaft IV (35) and escape wheel (36) with gear sheet I (27), gear shaft II (31) and gear sheet II (32), gear shaft III (34) by gear shaft I (30); The input gear of train is gear shaft I (30); Train is with the axle of gear shaft I (30) driving shaft as registration and valve closing mechanism; Train is formed controlled release catch with its terminal escape wheel (36) and controlled escapement lever (39); Between train middle gear axle I (30) and gear sheet I (27) with the unidirectional transmission of ratchet device II; The ratchet II (29) of ratchet device II and gear shaft I (30) are connected as a single entity, the locating shaft II (60) of ratchet II (28) on gear sheet I (27) that matches with ratchet II (29) goes up the location, and guaranteed to be meshing with each other when clockwork spring in accumulator releases energy by the spring II (59) that reference column II (58) and shelves post II (57) locate;

The control arm (64) of the controlled escapement lever (39) in the controlled release catch is arranged in the spacing hole (63) that send on the number pendulum (38); Send number pendulum (38) to go up the location at balance staff (37), and match with the excentric shaft (41) on its cylindrical void (40) and the metering output shaft (7) with pilot hole (61); Follow the rotation of the excentric shaft (41) on the metering output shaft (7), sending the number pendulum is the center swing with balance staff (37), making controlled escapement lever (39) is the center swing with fork shaft (66), escapement pin I (65) on the controlled escapement lever (39) and escapement pin II (67) mesh with escape wheel (36) in turn simultaneously, thereby make the rotation of escape wheel (36) release clockwork spring energy accurately relevant with the gas consumption of metering output shaft (7) output;

Have nut (44) and unthreaded hole dish (47) on the registration that drives with the axle of the gear shaft I (30) in the train and the screw axis (42) of valve closing mechanism; Spur rack structure (45) on the nut (44) can with close valve gear (43) engagement, close valve gear (43) and be fixed in the rotating shaft (74) among the sealing socket I (70), rotating shaft (74) links to each other with the turning handle (72) of rotary valve (73) with flexible axle (71) in table; Meet and discuss (52) on the nut (44) can start the travel switch (51) that is positioned at the screw axis side; Pointer (50) on the nut (44) passes the elongated slot (17) on the dial plate (18); Unthreaded hole (46) both sides, position of unthreaded hole dish (47) are provided with light-emitting tube (48) and the light receiving tube (49) that picks out from control circuit board (12).

Shown in the accompanying drawing 8, send number pendulum (38) with side (62) to the control arm (64) of controlled escapement lever (39) with one-sided restriction.Send number pendulum (64) just putting right side one end among the figure, the pulling force that is positioned at the extension spring (68) on the support (69) makes control arm (64) near side (62).Controlled escapement lever (39) is the swing at center sending under number pendulum (38) restriction with fork shaft (66), and escapement pin I (65) and escapement pin II (67) are meshed with escape wheel (36) in turn.When sending number pendulum (28) to swing among the figure left position, side (62) can disengage with control arm (64).

Shown in the accompanying drawing 10, when employing resetted pressure valve (79) certainly, the spur rack structure (45) of nut (44) was downward, and can mesh with the sector gear (75) that the fan tooth is put.The below of the pressure valve end (82) of fan tooth pendulum.Be the lifting shaft (83) among the sealing socket II (78) on the watchcase (19), the pressure handle (80) of valve (79) is pressed in the below of the promote-side (81) of lifting shaft (83) for resetting certainly.Fan tooth pendulum is gone up the location with back shaft (76) at rocker (27).Pressing valve (79) from resetting is normally open when its pressure handle (80) is not subjected to downward pressure.

Shown in the accompanying drawing 11, when at former gas meter, flow meter top presetter device being set, in the seal closure (86), the nut (44) on the screw axis (42) directly promotes to reset certainly with promotion face (85) and presses the pressure handle (80) of valve (79).Press valve (79) to be installed between former gas meter gas outlet (2) and seal closure gas outlet (84) from resetting.

Shown in the accompanying drawing 12, input counting member adopts double wedge dish (89), has one group of double wedge (88) on the double wedge dish excircle, and the side of double wedge dish (89) is provided with counter switch (87).

Claims

1, a kind of preset gas meter, has watchcase (19), air intake opening (1) is arranged on the watchcase (19), gas outlet (2), between the delivery outlet (8) of the table the inner (3) of gas outlet (2) and metering mechanism, have rotary valve (4) or reset certainly and press valve (79), promote to be fixed in watchcase (19) by the metering mechanism in the watchcase (19) and go up interior metering output shaft (7) rotation of isolation seat (5), the several gears (6) that send on the metering output shaft (7) drive outer counter (15) counting of watchcase (19), counter (15) is arranged in the protective cover (14), protective cover (14) is provided with the deck (9) of magnetic card or IC-card, deck (9) has dust cap (13), also be provided with the control circuit board (12) of presetter device in the protective cover (14), and from the band that control circuit board picks out the slow down reducing motor (20) and the charactron (16) of fast device, the power supply that picks out from control circuit board (12) and the control button (11) and the display lamp (10) of input are installed on the protective cover (14), also have interchange or direct supply in the cover, it is characterized in that:

A, employing are with the accumulator of flexible member clockwork spring as energy storage unit, and accumulator is with the input gearing mesh of output gear and train;

The escape wheel of b, train end (36) is formed controlled release catch with controlled escapement lever (39), wherein controlled escapement lever (39) has control arm (64), control arm (64) is arranged in the limiting structure that send on the several members of sending of several mechanisms, or is limited in a side of sending several members by spring;

C, with the gear of output gear and train, or the axle of the gear of output gear and train is as the driving wheel or the driving shaft of registration and valve closing mechanism.

2, according to the described preset gas meter of claim 1, it is characterized in that in the accumulator having ratchet device in the kinematic train between the output shaft (21) of the output input link of clockwork (26) and reducing motor (20).

3, according to the described preset gas meter of claim 1, it is characterized in that the wheel be from the input gear through the centre increase gear kinematic trains to terminal escape wheel (36) at different levels, in the train from escape wheel (36) to the slow speed turbine stage direction, between the driving wheel of registration and valve closing mechanism or driving shaft, have ratchet device.

4, according to the described preset gas meter of claim 1, it is characterized in that sending the several members of sending of several mechanisms for sending number pendulum (38), send number pendulum (38) to go up the location at balance staff (37), and match with the excentric shaft (41) on its cylindrical void that has (40) and the metering output shaft (7) with its pilot hole that has (61).

5,, it is characterized in that sending the table structure of sending of number pendulum (38) is spacing hole (63) according to the described preset gas meter of claim 4.

6,, it is characterized in that registration and valve closing mechanism are the screw-drive mechanism that screw axis (42) and nut (44) are formed according to the described preset gas meter of claim 1.

7,, it is characterized in that nut (44) has the valve arrangement of closing spur rack structure (45) or promotion face (85) according to the described preset gas meter of claim 6; Nut (44) is with spur rack structure (45) and close valve gear (43) engagement; Perhaps nut (44) sector gear (75) engagement of laying out with the sector of spur rack structure (45) and valve closing mechanism; Perhaps nut (44) directly promotes to reset certainly with promotion face (85) and presses the pressure handle (80) of valve (79).

8, according to the described preset gas meter of claim 6, it is characterized in that being equipped with on the nut (44) pointer (50), pointer (50) passes the elongated slot (17) of stationkeeping.

9,, it is characterized in that maybe can having on the screw axis (42) the input counting member that axially has plate-like of the gear of screw axis (42) according to the described preset gas meter of claim 6.

10,, it is characterized in that the input counting member of plate-like is unthreaded hole dish (47) or double wedge dish (89) according to the described preset gas meter of claim 9; Have one group on the dish of unthreaded hole dish (47) at the locational unthreaded hole of same radius (46), the both sides of unthreaded hole (46) position are provided with light-emitting tube (48) and the light receiving tube (49) that picks out from control circuit board (12); One group of double wedge (88) is arranged on the excircle of double wedge dish (89), and double wedge (88) is the pusher head of the counter switch (87) that picks out from control circuit board (12).

11, according to the described preset gas meter of claim 6, it is characterized in that the side in screw axis (42), have the travel switch (51) that picks out from control circuit board (12), meet and discuss (52) on the nut (44) are the pusher head of travel switch (51).