CN2046205U

CN2046205U - Hand-moving returning number disc indicating water meter

Info

Publication number: CN2046205U
Application number: CN 89202630
Authority: CN
Inventors: 刘忠信; 于安明
Original assignee: Sinopec Fushun Research Institute of Petroleum and Petrochemicals
Current assignee: Sinopec Fushun Research Institute of Petroleum and Petrochemicals
Priority date: 1989-03-15
Filing date: 1989-03-15
Publication date: 1989-10-18

Abstract

The utility model discloses an improved velocity type water meter, which adopts the entire number disc indicating and increases the returning of the indicating number value (namely the zero suppression function). The water meter of the utility model is particularly applicable for the production process requiring to meter the water supply repeatedly, such as the concrete mixing process, etc. The utility model has the advantages of convenient operation, low cost and easy reading.

Description

Hand-moving returning number disc indicating water meter

The utility model belongs to velocity type water meter (rotary wind type or spiral type).

Velocity type water meter is to use extremely general water metering outfit, has that volume is little, characteristics such as handling ease, cost are low.Existing velocity type water meter all is cummulative metering, therefore, gives earlier definite some for need, makes repeatedly the production run of the usefulness of quantitative water supply, stirs as the building ground concrete, and occasions such as casting sand mix use very inconvenient.Though the electric water meter can repeat metering, automaticity is higher, and table body volume is big, cost is high, complex structure, maintenance difficulty, and especially this water meter is quite harsh to the requirement of environmental baseline, makes its use in many working-yards be restricted.For example the concrete on the building ground stirs, water distribution quantity is general to be required to be accurate to ± and 2%, and the environmental baseline in building site is comparatively abominable, the general at present water tank water storage that adopts, artificial method with the metering of bucket water lift, the both wastes of manpower of this method, measuring accuracy is difficult to reach requirement again, thereby influences the quality of concrete component.

The purpose of this utility model is to propose a kind of improved velocity type water meter (rotary wind type or spiral type), and its metering is all shown by character wheel, can remove its indicated value in the outside of water meter, is convenient to quantitative water supply repeatedly, and can adapts to abominable environment for use.

Legend

Fig. 1 is indicating mechanism's vertical view (removing train wheel bridge) of the utility model water meter;

Fig. 2 is the stretch-out view of facing of the utility model water meter indicating mechanism;

Fig. 3 is a character wheel formula counter wiring layout;

Fig. 4 is character wheel front elevation and left and right sides view;

Fig. 5 is the front elevation and the vertical view of four octadentates wheel;

Fig. 6 is the sectional view of counter;

Fig. 7 is the front view and the left view of push pedal.

Below in conjunction with description of drawings detailed structure of the present utility model.

The utility model both can be made rotor water gauge, can make helical vane type water meter again, and except that indicating mechanism and watchcase, the remainder all structure with existing rotor water gauge is identical.

Indicating mechanism of the present utility model comprises train wheel bridge 1, lower plate 2, transmission gear 3, character wheel formula counter 4, push rod 5, back-moving spring 6,0 shape O-ring seals 7 parts such as grade.Character wheel formula counter 4 is screwed on lower plate 2, and the axle of the transmission gear 3 except that central gear also is positioned in the respective aperture of train wheel bridge 1 and lower plate 2.(seeing Fig. 1, Fig. 2).Its whole flow indications are shown by character wheel.

Character wheel formula counter 4 mainly comprises framework 8, character wheel 9, print wheel shaft 10, translocation frame 11, four octadentate wheel shafts 12, four octadentates wheel 13, worm screw 14, push pedal 15 (see figure 3)s such as part such as grade, the afterbody gear is fixed on worm shaft 14 bottoms in the transmission gear 3, worm screw 14 can be directly and character wheel 9 be meshed, also can be by after worm gear 16 engagements, transmission passes motion to character wheel 9 through plurality of gears again.Processing one in a side of each character wheel 9 protrudes from character wheel and sees Fig. 4 with the disk cam 17(of side surface), the working surface that cam 17 is opposite with character wheel excircle 0 digital direction is a plane 32, print wheel shaft 10 is a camshaft 10, all the other working surfaces of cam 17 should be processed into so outer convex surface, camshaft 10 to the radius vector of plane 32 each points all less than the radius vector of all the other working surfaces, camshaft 10 to pointed protruding 33 radius vector all greater than the radius vector of all the other working surfaces, its objective is when translocation frame 11 ramps 22 and rotate with after the working surface of cam 17 contacts, produce one perpendicular to inclined-plane 22, be applied under the effect of normal force of cam 17, can produce one and turn to the moment of components on plane 32 around camshaft 10.The quantity of character wheel 9 and four octadentates wheel 13 can be determined according to the measures range of water meter.The same with general character wheel formula counter, process 20 teeth branches such as a side of character wheel 9, opposite side processes 2 teeth.Process eight teeth on the circumference of four octadentates wheel 13, four long teeth wherein, four short teeth, the alternate (see figure 5) that separates, the tooth that each four octadentate is taken turns is meshed with the relative both sides of adjacent two character wheels respectively.When the upper level character wheel circles, mesh by 2 teeth of upper level character wheel one side and the long tooth of four octadentates wheel, four octadentates wheel just in time rotates a long angle of nibbling and lacking tooth, mesh by each tooth of this four octadentates wheel and the opposite side tooth of next stage character wheel again, subordinate's character wheel also just in time rotates the angle of 2 teeth, i.e. arabic numeral.Just adjacent two-stage character wheel exists strict decimal system relation.All character wheels are contained on the framework 8 by print wheel shaft 10.All four octadentates wheels are contained on the translocation frame 11 by four octadentate wheel shafts 12, and four octadentate wheel shafts 12 stretch out certain-length outside the translocation frame 11.Translocation frame 11 is fixed on the counter framework 8 by translocation frame axle 19, and translocation frame 11 can be done the rotation of certain angle around translocation frame axle 19.A torsionspring 20 also is housed on translocation frame axle 19, and the two ends of torsionspring 20 are against respectively on counter framework 8 and the four octadentate wheel shafts 12, cause a reseting torque in order to the rotation to translocation frame 11.Several flat boards 21 identical with character wheel quantity are arranged at the bottom of translocation frame, process inclined-plane 22 on each flat board 21, inclined-plane 22 and character wheel 9 the working surface of disk cam 17 on same vertical plane.When translocation frame 11 rotates around translocation frame axle 19, inclined-plane 22 just and the working surface of cam 17 contact, form one and swing active plane push rod disk cam mechanism (see figure 6).Process a dowel 34(in the middle of two flat boards 30 of push pedal 15 and 31 and see Fig. 7), dowel 34 is put into the groove 18 of a vertical direction of counter framework 8, push pedal 15 can slide up and down along groove 18 under external force, but can not do moving of horizontal direction.Process a vertical inclined-plane 24 on dull and stereotyped 30, when counter was normally counted, the root on vertical inclined-plane 24 and an end of four octadentate wheel shafts 13 contacted.A horizontal ramps 23 in addition that links to each other with dull and stereotyped 31, horizontal ramps 23 is outside counter framework 8, and its bevel angle can be selected between 15 °-65 ° according to the arrangement space of water meter.

Push rod 5 is placed in the watchcase hole 26, and the end that push rod 5 contacts with push pedal 15 has a spherical surface 27, so that push rod 5 when thruster push pedal 15 in the counter framework, can produce a component vertically downward on the horizontal ramps 22 of push pedal 15.One 0 shape O-ring seal 7 is housed in watchcase hole 26, form motive seal with the outside surface of push rod 5, the compression deformation rate of O-ring seal 7 is as much as possible little under the prerequisite that guarantees sealing, in case major structure becomes excessive hermetic resistance, a gland nut 28 is equipped with in the outside in watchcase hole 26, and in order to fixed seal ring 7, back-moving spring 6 is enclosed within the outside of push rod 5, back-moving spring 6 one sides withstand on the gland nut, and opposite side withstands on the boss 35 of push rod 5.

When inlet valve is opened, current in the pipeline are when water meter, drive the wheel rotation in the water meter, drive central gear 29 rotating shafts by some parts again then, the rotation of central gear 29 is after several grades of gear drives, drive worm screw 14 is rotated, worm screw 14 direct and character wheel 9 engagement (or by worm gear and several grades of gear drives) drive character wheels 9 rotation countings, and each character wheel and upper level character wheel all are the decimal system relations of strictness.When the water yield of phase is given in the count value arrival of water meter, valve-off.Manually press lower push-rod 5, the force of compression that push rod 5 overcomes back-moving spring 6 travels forward, spherical surface 27 is against on the horizontal ramps 23 of push pedal 15, produce a component vertically downward, promote push pedal 15 and do moving of vertical direction along frame slot 18, meanwhile, four octadentate wheel shafts 12 are pushed on the vertical inclined-plane 24 of push pedal 15 opposite sides open, drive translocation frame 11 and rotate around translocation frame axle 19.When translocation frame 11 rotates, four octadentates wheel 13 separates with character wheel 9, the flat board 21 of translocation frame 11 bottoms is upturned, the working surface of the cam 17 on inclined-plane 22 and each character wheel 9 contacts, form initiatively flat push rod disk cam mechanism of a swing, the inclined-plane 22 that is equivalent to swing flat push rod acts on the power of cam 17 workplaces forever perpendicular to inclined-plane 22 when rotating, this normal force perpendicular to inclined-plane 22 produces a moment to camshaft 10 again, forcing cam is that character wheel rotates, till the plane of cam working surface 32 and inclined-plane 22 contact, this moment all character wheels 0 numeral just in time be positioned at counter directly over the position.Unclamp push rod 5, push rod 5 is back to original position under the effect of back-moving spring 6, translocation frame 11 is also got back to original position under the effect of torsionspring 20, and four octadentates wheel and corresponding character wheel mesh again, the demonstration numerical value full scale clearance of water meter at this moment is for metrological operation is next time got ready.

Compared with prior art, the utlity model has following advantage:

1, owing to increased the demonstration reset function, to requiring repeatedly the production occasion of quantative water supply amount, the operator has exempted the trouble of repeat count, and operates, surveys and see that the water yield is all very convenient;

2, water meter cost of the present utility model is low, handling ease, and volume is little, can use than under the rugged surroundings;

3, mass part of the present utility model can be general with the velocity type water meter part of present standard.

Claims

1, a kind of improved velocity type water meter (rotary wind type or spiral type), its indicating mechanism comprises train wheel bridge 1, lower plate 2, character wheel formula counter 4, transmission gear 3, character wheel formula counter 4 comprises four octadentates wheel 13, character wheel 9, framework 8, worm screw 14 parts such as grade, character wheel formula counter 4 is screwed on lower plate 2, gives character wheel formula counter 4 by transmission gear 3 with the power transmission of rotor or the generation of the spiral shell wing, driving character wheel 9 rotates, a side that it is characterized in that each character wheel 9 processes and protrudes from character wheel and be contained on the translocation frame 11 with disk cam 17, the four octadentate wheel shafts 12 of side surface, and the bottom of translocation frame 11 has on the plate frame 8 that equates with character wheel quantity is equipped with the push pedal 15 that respectively there is an inclined-plane at two ends, one end of push rod 5 contacts with the horizontal ramps of push pedal 15, and the other end passes watchcase hole 26 and exposes outside the watchcase.

2, water meter as claimed in claim 1 is characterized in that whole flow indications show with character wheel.

3, water meter as claimed in claim 1, a side that it is characterized in that framework 8 have a vertical channel 18 that is parallel to worm axis.

4, water meter as claimed in claim 3, two flat boards, 30, the 31 middle company's muscle 34 that it is characterized in that push pedal 15 are placed in the vertical channel 18, and guarantee that it can slide up and down along vertical channel 18 under vertical external force effect, one vertical inclined-plane 24 is arranged on the flat board 31 of push pedal 15, one end in contact of this inclined-plane and four octadentate wheel shafts 12, the horizontal ramps 23 of push pedal 15 is positioned at outside the framework 8.

5, water meter as claimed in claim 1 is characterized in that processing inclined-plane 22 on the every flat board of translocation frame 11 bottoms.

6, water meter as claimed in claim 5 is characterized in that translocation frame 11 is contained on the framework 8 by translocation frame axle 19, suit one torsionspring 20 on the translocation frame axle 19.

7, water meter as claimed in claim 1, there is a spherical surface 27 front portion that it is characterized in that push rod 5, this surface contacts with the horizontal ramps 23 of push pedal 15, adds one " 0 " shape O-ring seal 7 between push rod 5 and the watchcase endoporus 26, and formation push rod 5 surfaces and " 0 " shape are enclosed the motive seal between 7 internal diameters.

8, water meter as claimed in claim 1 is characterized in that the angle of horizontal ramps 22 in the push pedal 15 is selected between 15 °-65 °.

9, water meter as claimed in claim 1, it is characterized in that the opposite working surface of cam 17 and character wheel excircle " 0 " numeral is a plane 32, the working surface that " 0 " digital direction is identical is one pointed protruding 33, camshaft 10 to the radius vector of plane 32 each points all less than the radius vector of all the other working surfaces, camshaft 10 to pointed protruding 33 radius vector all greater than the radius vector of all the other working surfaces.