CN2856647Y

CN2856647Y - Headstock gear for valve of gas meter

Info

Publication number: CN2856647Y
Application number: CN 200520015188
Authority: CN
Inventors: 宣国平
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-09-27
Filing date: 2005-09-27
Publication date: 2007-01-10
Anticipated expiration: 2015-09-27

Abstract

Provided is a headstock gear for valve of gas meter with fast speed, good sensitivity and high endurance. Wherein, a motor (13) and an output gear (12) are arranged in a case (1). A gear shaft A which has an input gear (3) having upper and lower teeth, a shifting block and a shifting disk (5) orderly nested thereon is provided in the case (1). A downward protruding column which has a ratchet gear (7) provided thereon is arranged at front end of the shifting disk. The lower teeth of the input gear (3) are engaged with motor output last stage gear. The upper teeth of the input gear are engaged with the lower teeth of the ratchet gear. The upper ratchets of the ratchet gear can engage with the shifting block. A gear shaft B which has a shifting bar gear (8) engaging with the lower teeth of the ratchet gear. A rack engaging with the shifting bar gear is provided on the case. A recovery device is provided on the rack. The shifting block and shifting disk have torsion springs engaged thereon. This utility model is suitable for gas meter valve.

Description

Actuator of valve for gasmeter

Technical field

The utility model relates to electronic keying valve, particularly gas meter valve.

Background technique

The keying of gas meter valve requires quick, sensitive, durable, power saving.This start-stop device that the disclosed the applicant of the utility model patent specification of notification number CN2583469Y, CN2625689Y makes can satisfy these requirements.But, the possibility of further raising is arranged still with regard to the rationality and the keying speed of start-stop device structure.Described disclosed this start-stop device is established internal tooth ratchet, built-in ratchet etc., and open and close the flexible of directly related parts and realize in the screw motion mode, the structure relative complex, keying speed is not the fastest.

Summary of the invention

The utility model will solve existing actuator of valve for gasmeter structure and become outmoded and awaited innovation, make it structure and more become reasonable, keying speed is faster, the problem that serviceability is stronger, a kind of actuator of valve for gasmeter of the present utility model is provided for this reason, and the structure of this start-stop device is with existing different fully, and its keying speed is fast, sensitivity is good, the durability height.

For addressing the above problem, the technical solution adopted in the utility model is to be provided with motor and output gear thereof in casing, its special way is to be provided with input gear that gear shaft A is with the upper and lower tooth of tool on it from bottom to top successively in the casing, to stir tooth piece and dial, the dial front end has down to projection and is with the band ratchet gear on it, the lower tooth of input gear and motor output final stage gear engagement, the last tooth of input gear meshes with the lower tooth of band ratchet gear, and the upper strata ratchet of band ratchet gear can cooperate with the described tooth piece of stirring; Also be provided with in the casing gear shaft B be with on it dial the bar gear can with the lower tooth engagement of described band ratchet gear; Be equipped with tooth bar and described group of bar gear matched on the casing; Tooth bar is provided with multiple return device, stirs on tooth piece and the dial and is combined with torsion spring.

Described casing from top to bottom can be by loam cake, body frame, gear-box and underframe in conjunction with constituting, described motor places underframe, the lower tooth of input gear and motor output final stage gear place gear-box, import the last tooth of gear and stir tooth piece, dial, band ratchet gear, group bar gear and tooth bar to place body frame.

Multiple return device on the described tooth bar is the spring that is placed in tooth bar.

Described body frame is provided with slideway and is matched with tooth bar.

Should be provided with backing pin on described body frame is positioned at and stirs tooth piece lateral direction.

Described tooth bar can be that the outer end has the tooth bar that opens and closes round platform.

The utility model is owing to be provided with the input gear, be with ratchet gear, stir the tooth piece, dial, dial bar gear and tooth bar, so rotation of band ratchet gear and dial can be swung an angle when motor one direction was rotated, driving the band ratchet gear moves by nibbling in dialling the bar gear, move through dialling bar gear driven tooth bar again, realize valve opening; During the motor counter-rotation, dial drives the backswing of band ratchet gear and leaves group bar gear, and tooth bar is resetting throttle down rapidly under multiple return device effect.This shows that the utility model is rational in infrastructure, keying speed is fast, and sensitivity is good, the durability height.

Description of drawings

Fig. 1 is the utility model part-structure exploded view;

Fig. 2 is the utility model another part STRUCTURE DECOMPOSITION figure;

Fig. 3 is the utility model general assembly structural representation;

Fig. 4 is the utility model one working state schematic representation;

Fig. 5 is novel another working state schematic representation of this reality;

Fig. 6 is the another view of the utility model.

Be labeled as among the figure: 1 casing, 1-1 loam cake, 1-2 body frame, 1-3 gear-box, 1-4 underframe, 2 gear shaft A, 3 input gears, 4 stir the tooth piece, 5 dials, 6 torsion springs, 7 band ratchet gears, 8 groups of bar gears, 9 gear shaft B, 10 tooth bars, 11 springs, 12 motor output gears, 13 backing pins.

Embodiment

Actuator of valve for gasmeter, be provided with motor 13 and output gear 12 thereof in the casing 1, be provided with input gear 3 that gear shaft A2 is with the upper and lower tooth of tool on it from bottom to top successively in the casing 1, stir tooth piece 4 and dial 5, dial 5 front ends have down to projection and are with band ratchet gear 7 on it, the lower tooth of input gear 3 and motor output final stage gear engagement, the lower tooth engagement of tooth and band ratchet gear 7 on input gear 3 backing pins, the upper strata ratchet of band ratchet gear 7 can with stir tooth piece 4 and cooperate; Also be provided with in the casing gear shaft B9 be with on it dial bar gear 8 can with the lower tooth engagement of band ratchet gear 7; Being equipped with tooth bar 10 on the casing cooperates with group bar gear 8; Be with spring 11 on the tooth bar 10, stir and be combined with torsion spring 6 on tooth piece and the dial; Described casing is made of loam cake 1-1, body frame 1-2, gear-box 1-3 and underframe 1-4 combination from top to bottom, motor 1 places underframe 1-4, the lower tooth of input gear 3 and motor output final stage gear place gear-box 1-3, import the last tooth of gear 3 and stir tooth piece 4, dial 5, band ratchet gear 7, group bar gear 8 and tooth bar 10 to place body frame 1-2; Body frame 1-2 is provided with slideway and is matched with tooth bar 10, and is provided with backing pin 12 and is positioned at and stirs tooth piece lateral direction; Tooth bar 10 outer ends have the keying round platform.

As shown in Figure 4, starting electrical machinery 13, when input gear 3 counterclockwise rotated, band ratchet gear 7 clockwise directions rotated, the upper strata ratchet of band ratchet gear 7 applies the power of dialling in the sliding mode of dialling to stirring tooth piece 4, be enough to make and stir 4 rotations counterclockwise of tooth piece, under torsion spring 6 effects, dial 5 rotations counterclockwise, the lower tooth that makes band ratchet gear 7 is by nibbling in dialling bar gear 8, drive and dial bar gear 8 rotation counterclockwise, drive tooth bar 10 reaches thus, Open valve; After tooth bar 10 reaches, dial the anodontia district that bar gear 8 is stirred the corresponding tooth bar 10 in district, make group bar gear 10 that an idle running time leeway be arranged.

When closing valve, as shown in Figure 5, the motor backward rotation, input gear 3 clockwise directions rotate, and band ratchet gear 7 counterclockwise rotates, and the upper strata ratchet makes and stirs the swing of tooth piece 4 clockwise directions to nibble the mode of dialling, dial 5 clockwise directions swing under the torsion spring effect, band ratchet gear 7 leaves dials bar gear 8, and tooth bar 10 momentary reset under Returnning spring 11 effects retreats throttle down.This moment, motor and band ratchet gear 7 can be rotated further; continue the clockwise direction rotation when stirring tooth piece 4; after the rear end brushes up against backing pin 13; dial 5 and band ratchet gear 7 continue clockwise direction rotation one angle under the coherence effect; tooth piece 4 preceding trepens are stirred in the ratchet disengagement of band ratchet gear upper strata; after the disengagement; under torsion spring 6 effect band ratchet gear 7 upper strata ratchets return again be engaged in stir tooth piece 4 before trepen; then throw off again; so alternately one nibble one and take off and continue a short time, the unlikely damage of protection corresponding part.

Claims

1, actuator of valve for gasmeter, be provided with motor (13) and output gear (12) thereof in the casing (1), it is characterized in that being provided with in the casing (1) gear shaft A (2) is with on the tool from bottom to top on it successively, the input gear (3) of lower tooth, stir tooth piece (4) and dial (5), dial (5) front end has down to projection and is with band ratchet gear (7) on it, the lower tooth of input gear (3) and motor output final stage gear engagement, the last tooth of input gear (3) meshes with the lower tooth of band ratchet gear (7), and the upper strata ratchet of band ratchet gear (7) can cooperate with the described tooth piece (4) of stirring; Also be provided with in the casing gear shaft B (9) be with on it dial bar gear (8) can with the lower tooth engagement of described band ratchet gear (7); Being equipped with tooth bar (10) on the casing cooperates with described group of bar gear (8); Tooth bar (10) is provided with multiple return device, stirs and is combined with torsion spring (6) on tooth piece and the dial.

2, actuator of valve for gasmeter as claimed in claim 1, it is characterized in that described casing is made of loam cake (1-1), body frame (1-2), gear-box (1-3) and underframe (1-4) combination from top to bottom, described motor places underframe (1-4), the lower tooth of input gear (3) and motor output final stage gear place gear-box (1-3), import the last tooth of gear (3) and stir tooth piece (4), dial (5), band ratchet gear (7), group bar gear (8) and tooth bar (10) to place body frame (1-2).

3, actuator of valve for gasmeter as claimed in claim 1 or 2 is characterized in that the multiple return device on the described tooth bar is the spring (11) that is placed in tooth bar.

4, actuator of valve for gasmeter as claimed in claim 2 is characterized in that described body frame (1-2) is provided with slideway and is matched with tooth bar (10).

5, actuator of valve for gasmeter as claimed in claim 2 is characterized in that described body frame is provided with backing pin (13) and is positioned at and stirs tooth piece lateral direction.

6,, it is characterized in that the tooth bar outer end has the keying round platform as claim 1,2,4 or 5 described actuator of valve for gasmeter.