CN201723763U

CN201723763U - Improved running resistance-free full-sealing electric control ball valve

Info

Publication number: CN201723763U
Application number: CN2010201885724U
Authority: CN
Inventors: 邵柯璇; 邵仁贵
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-05-12
Filing date: 2010-05-12
Publication date: 2011-01-26
Anticipated expiration: 2020-05-12

Abstract

The utility model relates to an improved running resistance-free full-sealing electric control ball valve comprising a valve body in which a sealing ring and a ball body are installed, wherein the valve body is connected with a valve cover with a spring and a movable sleeve into a whole, the valve body and a motor are fixedly installed on the same side of a gear box with a gear box cover, and the valve body and the gear box form a whole; the ball body is connected with a speed-reducing gear train in the gear box through a rotary shaft, a magnetic steel is fixed on a sector slice in the speed-reducing gear train and matched with a magnetic steel I and a magnetic steel II which are fixed on the gear box; and the electric control ball valve also comprises a limiting device formed by matching a limiting rod fixed on the rotary shaft with a gap on the gear box. The limiting device can ensure that the sector slice can normally work all the time in the control of the magnetic steels I and II after the electric control ball valve is knocked. The valve body and the gear box are in an integral structure so that the electric control ball valve has less part; the outlet of the motor is sealed by a sealing plug without the influence of gas so that the electric control ball valve has good sealing performance; and due to the adoption of a magnetic-steel structure, no matter the valve is turned on or off, the running resistance on the motor can not be caused, thereby the motor has low energy consumption, difficult damage and long service life.

Description

The without hindrance commentaries on classics fully-sealed electric of modified model valve-control spherical

Technical field

The utility model relates to a kind of electric-controlled ball valve, the particularly a kind of and without hindrance commentaries on classics fully-sealed electric of the matching used modified model of IC-card gas meter valve-control spherical.

Background technique

The patent No. 200620139870.8 " IC-card gas meter built-in electric control ball valve " is though also provide a kind of electric-controlled ball valve, but the both sides of fan-shaped gear piece also are fixed with the structure of two position limit pins in reducing gear train, in air feed, the whole process of stopping the supple of gas or steam, the barrier effect that will be subjected to position limit pin because of fan-shaped gear piece can not rotate, therefore motor is produced a resistance and transfer to usefulness, at this moment, motor must overcome the reaction force by its generation, the energy consumption height of motor for this reason, the time, long rear motor was fragile.

The patent No. 200920201259.7 " without hindrance commentaries on classics fully-sealed electric valve-control spherical " just provides a kind of electric-controlled ball valve, fixing magnet steel on the fan gear piece of reducing gear train, the fixing magnet steel first that cooperates with magnet steel on the other gear-box of fan gear piece, magnet steel second, by magnet steel and magnet steel first, the rotation of spheroid and the keying of valve are controlled in the cooperation of second, adopt the magnet steel structure, the keying of valve can not cause to be changeed the resistance of motor, therefore the energy consumption of motor is low, not fragile, long service life, the part but this electric-controlled ball valve also comes with some shortcomings, particularly in transportation process, if electric-controlled ball valve is clashed into, to fan gear piece hits from the magnet steel first, the control range of second, but by the magnet steel first, the suction of second can't be withdrawn into control range with the fan gear piece again, and this moment, reducing gear train just broke away from the engagement with the fan gear piece, and motor just can't drive and fan the keying of the electric-controlled ball valve that gear piece links together.

Summary of the invention

Technical problem to be solved in the utility model is: the without hindrance commentaries on classics fully-sealed electric of a kind of modified model valve-control spherical is provided, with the supporting use of IC-card gas meter, more reasonable structure is not subjected to external influence, and good airproof performance, stable performance, also capable of reducing energy consumption, increase the service life.

The technical scheme in the invention for solving the above technical problem is: the without hindrance commentaries on classics fully-sealed electric of modified model valve-control spherical, comprise seal ring is installed in the valve body, spheroid, valve body with have a spring, the valve gap of movable sheath connects into integral body, and valve body and motor are fixedly mounted on the homonymy of the gear-box that has gear box cover, valve body and gear-box are an integral body, described spheroid is connected with reducing gear train in the gear-box by rotating shaft, be fixed with magnet steel on the fan gear piece in the reducing gear train, with magnet steel I fixing on the gear-box, magnet steel II cooperates, and also comprises by position-limited lever fixing in the rotating shaft cooperating the limit stoper that constitutes with breach on the gear-box.

The top of described valve body is gear-box, and the centre has the boss of through hole and valve body, gear-box to be injection molded into integral body, and the upper surface inner circle of boss has corresponding two arc notch of symmetry, is incomplete shoulder hole in the middle of the boss, and breach is in 0～90 degree scope.

The wire outlet of described motor and opening tight embedding outlet sealing plug and sealing plug.

Compared with prior art, advantage of the present utility model is: the valve body of this valve, gear-box are overall structure, few, the easy processing of part, wire outlet, the opening of motor seal with sealing plug, make motor not be subjected to the influence of combustion gas, improved working life, good airproof performance.Because of increasing position-limited lever cooperates formation with the arc notch on the gear-box limit stoper in the rotating shaft, electric-controlled ball valve is collided or when clashing under being subjected to extraneous power or personal factor effect, position-limited lever in the rotating shaft just stops rotating shaft to do to surpass the above rotation of 90 degree, so can not do to surpass 90 with the fan gear piece that rotating shaft fuses and spend above rotation, make the fan gear piece remain on two magnet steel I always, in the control range of II, electric-controlled ball valve is worked in normal range (NR) always smoothly, be not subjected to extraneous interference effect, make its stable performance, work safety, in addition, because of adopting the magnet steel structure, the fan gear piece has a buffer function, the keying of valve can not cause to be changeed the resistance of motor, so energy consumption of electrical machinery is low, long service life.

Description of drawings

Fig. 1, sectional view of the present utility model (the A-A view of Fig. 2).

The left view of Fig. 2, Fig. 1.

The plan view of Fig. 3, Fig. 1 (take away gear box cover and close the gaseity view).

The plan view of Fig. 4, Fig. 1 (taking away gear box cover air inlet Status view).

Fig. 5, limit stoper structure enlarged view (taking away fan gear piece, reducing gear train and screw).

Embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is further described.

The top of valve body 16 is gear-box 16-2, in the middle of gear-box one sidewall, there are band boss 16-3 of through hole and valve body 16 and gear-box 16-2 to be injection molded into integral body, upper surface inner circle at boss 16-3 has symmetry and corresponding two arc notch 16-1, each breach is incomplete shoulder hole all in 0～90 degree scope in the middle of the boss.

At valve body 16 1 ends seal ring 1, spheroid 2 are installed successively, the movable sheath 10 of mounting strap spring 9 on valve gap 11 inwalls will be integral with the valve gap 11 of seal ring first 8 and valve body 16 usefulness being threaded on it at last.

Having seal ring second 6 and radial direction through hole internal fixation has the rotating shaft 7 of position-limited lever 4, and the end of rotating shaft 7 by the through hole in the middle of the boss 16-3, is embedded the rectangular recess internal fixation on spheroid 2 tops, and reducing gear train 3 also is installed in gear-box 16-2.

Top in rotating shaft 7 is placed with collar, and pass in the reducing gear train rectangular through-hole on last fan gear piece 3-1, fan gear piece 3-1 is fixed on the boss 16-3 in the gear-box 16-2, also in the outside of the gear-box bottom surface boss 16-3 at fan gear piece edge, with the rotating shaft is in the 90 degree scopes at center, and magnet steel I 20, the magnet steel II 19 of same polarity is installed respectively.

Corresponding magnet steel I 20, magnet steel II 19 positions are embedded with the magnet steel 17 of a different pole in the middle of the edge of fan gear piece 3-1.

Gear box cover 12 is screwed on gear-box 16-2; round platform and the fixing column that is connected with each spindle nose of reducing gear train that the band groove is arranged on gear box cover 12 lower surfaces; do not allow rotating shaft deviate from; guarantee the keying operation of valve; also in the screw on rotating shaft top, be equipped with the screw 5 of belt washer; motor 13 is screwed on the bottom surface of gear-box 16-2, for protection motor 13 is not subjected to the erosion of combustion gas, at motor wire outlet and the tight embedding outlet of opening sealing plug 14 and sealing plug 15.

During use, the clamping nut that is threaded at valve gap 11 places of this valve, 11 of clamping nut and valve gaps are lined with rubber seal and are installed in the gauge outfit of IC-card gas meter, link into an integrated entity with suction tude on the gauge outfit.

In the time of in IC-card inserts the IC-card gas meter, at this moment motor 13 is connected the power supply rotation, gear 18 on the motor shaft is first gear in the reducing gear train, with other reduction gear engagement, and by after gear-box reducing gear train 3 gearing down, rotate and drive rotating shaft 7 by fan gear piece 3-1 clockwise direction and rotate 90 degree, after the magnet steel 17 on the fan gear piece is met the magnet steel II 19 on the right, there is a natural attraction between the sexes no longer rotates, rotating shaft meanwhile 7 drives spheroid 2 clockwise directions and rotates 90 degree, the intermediate throughholes of spheroid 2 is aimed at the suction port of gas meter, valve is opened, and combustion gas just enters in the gauge outfit, and the user just can use combustion gas, at this moment motor 13 stops operating under program control, as shown in Figure 4.

Because fan gear piece 3-1 only has tooth in 90 ° of scopes, thus behind fan gear piece half-twist, just break away from reducing gear train, thus rotating shaft 7 is stopped operating, spheroid 2 is remained on certain position, so motor 13 has just been worked under uncharge state.

If do not use gas, IC-card is extracted, even program control motor 13 reversings, make fan gear piece 3-1 forward magnet steel I 20 places on the left side to from the magnet steel II 19 on the right, make the magnet steel 17 of fan on the gear piece and magnet steel I 20 there is a natural attraction between the sexes and stop, thereby drive rotating shaft 7 rotates counterclockwise 90 degree spheroid 2 is closed, as shown in Figure 3.

After fan gear piece 3-1 reversed 90 degree, the fan gear piece broke away from reducing gear train again, rotating shaft is stopped operating, thereby spheroid remains on certain position, so motor is worked under the state of without hindrance commentaries on classics again.

Adopted the magnet steel structure to realize two-way without hindrance commentaries on classics location, therefore the resistance that can not cause motor that opens and closes of valve is changeed.

Be fixed with position-limited lever 4 in the upper end radial direction through hole because of rotating shaft 7 again, and position-limited lever 4 can only with the arc notch 16-1 at boss 16-3 upper surface inner ring place in rotate, if this valve is collided in transportation process, bump or other personal factor depart from above magnet steel I the fan gear piece, during the control range of magnet steel II, at this moment the arc notch 16-1 on the boss 16-3 only can allow rotating shaft 7 drive fan gear piece 3-1 rotate in 90 ° of scopes, if the rotation that will surpass scope, at this moment the position-limited lever in the rotating shaft 4 is just stopped by the outer projection section of boss arc notch 16-1, can not rotate forward again, therefore guaranteed that the fan gear piece does not break away from magnet steel I, the control range of II, thus avoid electric-controlled ball valve that the accident that can not open and close smoothly takes place.

If the gas expense on the IC-card uses up, air feed also can be closed, be stopped to spheroid 2 automatically.

Claims

1. the without hindrance commentaries on classics fully-sealed electric of modified model valve-control spherical, comprise seal ring (1) is installed in the valve body (16), spheroid (2), valve body (16) with have a spring (9), the valve gap (11) of movable sheath (10) connects into integral body, and valve body (16) and motor (13) are fixedly mounted on the homonymy of the gear-box (16-2) that has gear box cover (12), valve body (16) is an integral body with gear-box (16-2), described spheroid (2) is connected by the interior reducing gear train (3) of rotating shaft (7) and gear-box (16-2), be fixed with magnet steel (17) on the fan gear piece (3-1) in the reducing gear train (3), go up fixing magnet steel I (20) with gear-box (16-2), magnet steel II (19) cooperates, and it is characterized in that also comprising by rotating shaft (7) going up fixing position-limited lever (4) cooperates formation with the breach (16-1) on the gear-box (16-2) limit stoper.

2. the without hindrance commentaries on classics fully-sealed electric of modified model according to claim 1 valve-control spherical, the top that it is characterized in that described valve body (16) is gear-box (16-2), in the middle of gear-box one sidewall, there are band boss (16-3) of through hole and valve body (16) and gear-box (16-2) to be injection molded into integral body, the upper surface inner circle of boss (16-3) has symmetry corresponding two arc notch (16-1), in the middle of the boss (16-3) is incomplete shoulder hole, breach (16-1) is in 0～90 degree scope, the radial direction through hole internal fixation position-limited lever (4) of rotating shaft (7).

3. the without hindrance commentaries on classics fully-sealed electric of modified model according to claim 1 valve-control spherical is characterized in that wire outlet and the tight embedding outlet of the opening sealing plug (14) and the sealing plug (15) of described motor (13).