CN2357315Y - Bidirectional metering water-meter - Google Patents

Abstract

The utility model relates to a bidirectional metering water-meter, which belongs to the technical field of measuring instrument of the flow quantity of tap water. The bidirectional metering water-meter is characterized in that a water inlet cavity 29f, a flow quantity cavity 29g, and a water outlet cavity 29h which are mutually communicated and are symmetrically arranged are arranged on the lower part inside a bottom shell 29; the section area of a water gap on the inner end of the water inlet cavity 29f is identical with the section area of a water gap on the inner end of the water outlet cavity 29h; an impeller shaft 30 is vertically fixed on the bottom surface of the bottom shell 29 which is arranged inside the flow quantity cavity 29g; an impeller 28 is arranged on the flow quantity cavity 29g and is sheathed on the impeller shaft 30; more than three identical blades 28a are evenly distributed on the impeller 28; the blades 28a adopt a middle symmetrical blade profile. The bidirectional metering water-meter has the function of bidirectional measurement, which can satisfy the requirement of occasions where bidirectional measurement is needed.

Description

Bidirectional watermeter

The utility model provides a kind of bidirectional watermeter, relates to the measuring instrument technical field of tap water flow.

The present water wheel type domestic water meter that generally uses, owing to the reason on its structural design, cause this water meter only to have unidirectional function of measuring, so when water inlet, when the water delivering orifice transposing is used, the seriously inaccurate situation of water meter measurement will be caused, because of this, existing water meter can't satisfy the needs that need bidirectional measuring occasion (as domestic solar water heater's water etc. up and down).

The purpose of this utility model is to provide a kind of bidirectional watermeter, and it has the bidirectional measuring function, can satisfy the needs that need the bidirectional measuring occasion.

The purpose of this utility model is achieved through the following technical solutions:

The bidirectional watermeter that the utility model provides, it comprises that from top to down is encapsulated in the transparent panel 2 of 29 of loam cake 1 and drain pans, pointer 4, index dial 5, train wheel bridge 6, gear reduction, lower plate 25, power input shaft 26, impeller shaft 30, gear reduction is fixed between train wheel bridge 6 and the lower plate 25, from top to down is provided with gear 27 and impeller 28 on the power input shaft 26, the final stage output shaft 23 and pointer 4 sockets of gear reduction, the bottom of drain pan 29 is provided with the horizontal water inlet tap 29a of coaxial line symmetrically, faucet 29b, its design feature is: the bottom in the drain pan 29 is interconnected and symmetrically arranged intake antrum 29f, flow chamber 29g, water chamber 29h, the inner mouth of a river sectional area of intake antrum 29f is identical with the inner mouth of a river sectional area of water chamber 29h, impeller shaft 30 vertically is installed on interior housing 29 bottom surfaces of flow chamber 29g, impeller 28 places flow chamber 29g and is sleeved on the impeller shaft 30 uniform identical blade 28a more than 3 on the impeller 28, symmetric profile during blade 28a adopts.

Come invention effect of the present utility model is described below by describing the concrete metering process (is example with water about the domestic solar water heater) of the utility model in need bidirectional measuring occasion:

After the utility model being fitted in domestic solar water heater's the watering pipeline, just can in domestic solar water heater's water tank, carry out water flood operations;

Current are through water inlet tap 29a, after intake antrum 29f forward flows among the 29g of flow chamber again through water chamber 29h, faucet 29b, water inlet pipe (not drawing among the figure) flows in the water tank of solar water heater, the impeller 28 that is arranged in flow chamber 29g is rotated by the forward impetus of waterpower in clockwise manner, gear 27 forces the gear reduction that is fixed between train wheel bridge 6 and the lower plate 25 to carry out interlock, and make the final stage output shaft 23 of gear reduction also obtain forward rotation, the pointer 4 that is sleeved on final stage output shaft 23 upper ends will just change thereupon, just changeing the concrete numeral (these digitized representations flow through the volume of water of the present utility model) that refers on index dial 5 by pointer 4, just can clearly illustrate the actual flooded condition in the water tank, when pointer 4 indication numerals equal the internal volume of water tank, just show in the water tank fills with water, thereby play the effect of overflow alarm circular and save a run-down pipe, as seen, the utility model not only can measure by forward, also can carry out water flood operations to water tank under the situation that run-down pipe need not be installed;

Because intake antrum 29f, flow chamber 29g, water chamber 29h is interconnected and is symmetrical arranged, the inner mouth of a river sectional area of intake antrum 29f is identical with the inner mouth of a river sectional area of water chamber 29h, uniform identical blade 28a more than 3 on the impeller 28, symmetric profile during blade 28a adopts, so when the water of equal volume difference forward and reverse direction flow inflow-rate of water turbine chamber 29g, to make the number of turns that turns clockwise of impeller 28 with to be rotated counterclockwise the number of turns identical, and cause the positive gyration of pointer 4 identical with reverse angle, therefore, the utility model can also oppositely measure accurately, so when people's bathing, water in the water tank is through water inlet pipe, faucet 29b, after water chamber 29h reverse flow enters among the 29g of flow chamber again through intake antrum 29f, water inlet tap 29a flows out, impeller 28 is rotated in counterclockwise mode by the reverse impetus of waterpower, gear 27 forces the gear reduction that is fixed between train wheel bridge 6 and the lower plate 25 to carry out interlock, and make final stage output shaft 23 also obtain backward rotation, the pointer 4 that is sleeved on final stage output shaft 23 upper ends will reverse thereupon, refer to concrete numeral on index dial 5 by pointer 4 counter-rotating, just can clearly illustrate the actual water outlet situation in the water tank, when pointer 4 indication numerals reduce gradually, show that then the surplus water in the water tank is reducing gradually.

As seen, the utility model can satisfy the up and down metering needs in the water process of domestic solar water heater.Certainly, the utility model also can satisfy the needs of other occasion of needing bidirectional measuring (as resident's roof water tank water etc. up and down).

In sum, the utlity model has the bidirectional measuring function, can satisfy the needs that need the bidirectional measuring occasion.

Description of drawings:

Fig. 1 is the axonometric exploded view of the utility model most preferred embodiment;

Fig. 2 is train wheel bridge in the utility model most preferred embodiment, contiguous block, the joining structural representation of locating piece;

Fig. 3 is the A-A cut-open view of Fig. 2;

Fig. 4 is the utility model most preferred embodiment medium power input shaft, gear, the joining structural representation of impeller;

Fig. 5 is the structural representation of drain pan in the utility model most preferred embodiment;

Fig. 6 is the B-B echelon sectional view of Fig. 5.

The utility model is described in further detail below in conjunction with accompanying drawing and most preferred embodiment:

Referring to Fig. 1-Fig. 6:

Transparent panel 2, O-ring seal 3, pointer 4, index dial 5, train wheel bridge 6, gear reduction, lower plate 25, power input shaft 26, impeller shaft 30 from top to down are encapsulated between loam cake 1 and the drain pan 29,

Loam cake 1 is circular, be shaped on screw thread on its inwall, it is uncovered for the upper end to have circular sight vane 1a drain pan 29 on its surface, the hollow cylinder of lower end closed, the outer wall top of drain pan 29 is shaped on the external thread that can be complementary with the internal thread in the loam cake 1, the outer wall bottom left and right symmetrically of drain pan 29 is provided with the horizontal water inlet tap 29a of coaxial line, faucet 29b, bottom surface in the drain pan 29 is provided with preceding supporting station 29d highly identical and that be separated from each other, back supporting station 29e, the medial shaft of preceding supporting station 29d is faced directly by the plane, left side that is symmetrical set, middle more than half outer protruding cylinder surface, the plane, right side constitutes, the axis of the axis runout drain pan 29 of more than half outer protruding cylinder surfaces, the upper side edge that the medial shaft of preceding supporting station 29d is faced directly is shaped as

Shape, the medial shaft of back supporting station 29e is faced the oval cambered surface into evagination directly, the inwall middle part of drain pan 29 is provided with vertical positioning convex strip 29c, the lower end of raised line 29c is positioned on the surface of back supporting station 29e, the length of raised line 29c equals the distance of 25 of train wheel bridges 6, lower plate, be weight, the reduction manufacturing cost that alleviates this water meter, the middle part of preceding supporting station 29d, back supporting station 29e can be hollowed out

Train wheel bridge 6, lower plate 25 are circle, have jack 6a, 6b, 6c, 6d, 6e, 6f, 6g, 6h on the train wheel bridge 6, jack 6h is positioned at the center of train wheel bridge 6, the one pit 6i that can match with positioning convex strip 29c is arranged on the outer rim of train wheel bridge 6, uniform 3 pillar 6j that extend vertically downward on the bottom surface outer rim of train wheel bridge 6, the lower end of each pillar 6j is a cylinder, also be installed with contiguous block 6k on the bottom surface of train wheel bridge 6, contiguous block 6k has counterbore 6k successively near on the bottom surface, outer end of train wheel bridge 6 outer rims ₁, screw-threaded counterbore 6k ₂, counterbore 6k ₃, be connected to locating piece 7 on the bottom surface of contiguous block 6k, locating piece 7 near be provided with successively on the outer end face of train wheel bridge 6 outer rims can with counterbore 6k ₁, screw-threaded counterbore 6k ₂, counterbore 6k ₃Corresponding projection 7b, tapped through hole 7c, protruding stake 7d pierce into tapped through hole 7c, screw-threaded counterbore 6k successively by self-tapping screw 8 ₂In and inject counterbore 6k respectively by projection 7b, 7d ₁, 6k ₃In, can make contiguous block 6k and locating piece 7 realize up and down folded by connection, the length of locating piece 7 is greater than the length of contiguous block 6k, also has the counterbore 7a with impeller shaft 30 coaxial cables on the inner bottom surface of locating piece 7,

The circular plug-in opening 25j of uniform 3 pillar 6j lower ends that can be used to peg graft on the bottom surface outer rim of lower plate 25, have on the lower plate 25 can with jack 6a, 6b, 6c, 6d, 6e, 6f, 6g, 6h jack 25a, 25b, 25c, 25d, 25e, 25f, 25g, 25h one to one, have on the outer rim of lower plate 25 one can with the corresponding pit 25i of pit 6i, also have the through hole 25k that can supply gear 27 to pass on the lower plate 25

The lower end of 3 pillar 6j is injected respectively among 3 plug-in opening 25j, can make train wheel bridge 6, lower plate 25 pegs graft up and down, gear reduction is fixed between train wheel bridge 6 and the lower plate 25 and adopts 7 grades of ways of deceleration, wherein: the upper and lower side of first transmission shaft 9 is inserted in jack 6a respectively, among the 25a, first transmission shaft 9 is provided with duplicate gear 10, the upper and lower side of second transmission shaft 11 is inserted in jack 6b respectively, among the 25b, second transmission shaft 11 is provided with duplicate gear 12, the upper and lower side of the 3rd transmission shaft 13 is inserted in jack 6c respectively, among the 25c, the 3rd transmission shaft 13 is provided with duplicate gear 14, the upper and lower side of the 4th transmission shaft 15 is inserted in jack 6d respectively, among the 25d, the 4th transmission shaft 15 is provided with duplicate gear 16, the upper and lower side of the 5th transmission shaft 17 is inserted in jack 6e respectively, among the 25e, the 5th transmission shaft 17 is provided with duplicate gear 18, the upper and lower side of the 6th transmission shaft 19 is inserted in jack 6f respectively, among the 25f, the 6th transmission shaft 19 is provided with duplicate gear 20, the upper and lower side of the 7th transmission shaft 21 is inserted in jack 6g respectively, among the 25g, the 7th transmission shaft 21 is provided with duplicate gear 22, the upper and lower side of final stage output shaft 23 is inserted in jack 6h respectively, among the 25h, final stage output shaft 23 is provided with gear 24, gear wheel engagement in pinion wheel in the duplicate gear 10 and the duplicate gear 12, gear wheel engagement in pinion wheel in the duplicate gear 12 and the duplicate gear 14, gear wheel engagement in pinion wheel in the duplicate gear 14 and the duplicate gear 16, pinion wheel and the engagement of the gear wheel in the duplicate gear 20 in the gear wheel engagement duplicate gear 18 in pinion wheel in the duplicate gear 16 and the duplicate gear 18, gear wheel engagement in pinion wheel in the duplicate gear 20 and the duplicate gear 22, pinion wheel in the duplicate gear 22 and gear 24 engagements

Be fixed with the train wheel bridge 6 of gear reduction and lower plate 25 place in the drain pan 29 and be placed on by lower plate 25 loads before supporting station 29d, on the back supporting station 29e, positioning convex strip 29c in the drain pan 29 is stuck in train wheel bridge 6, pit 6i on the lower plate 25, among the 25i, make train wheel bridge 6, gear reduction, lower plate 25 is unlikely to rotate and is circumferentially located, the bottom surface of lower plate 25 and drain pan 29, the medial shaft of preceding supporting station 29d is faced directly, the medial shaft of back supporting station 29e has constituted the intake antrum 29f that is interconnected and is symmetrically arranged between facing directly, flow chamber 29g, water chamber 29h, the outer end of intake antrum 29f is connected with water inlet tap 29a, the outer end of water chamber 29h is connected with faucet 29b, the inner mouth of a river sectional area of intake antrum 29f is identical with the inner mouth of a river sectional area of water chamber 29h, impeller shaft 30 vertically is installed in the more than half outer protruding cylinder surface coaxial line in facing directly on interior housing 29 bottom surfaces of flow chamber 29g and with preceding supporting station 29d medial shaft

The lower end from top to down of power input shaft 26 is provided with gear 27 and impeller 28, and the wheel hub 28b of impeller 28 goes up uniform 7 identical blade 28a, symmetric profile during blade 28a adopts, and there is a counterbore 28b that can match with impeller shaft 30 in the bottom center of wheel hub 28b ₁After the upper end of power input shaft 26 is passed among the counterbore 7a that through hole 25k puts in locating piece 7, gear 27 makes gear reduction and gear 27 interlocks, impeller 28 place flow chamber 29g also by the counterbore 28b on the wheel hub 28b also along with the gear wheel engagement of passing in through hole 25k and the duplicate gear 10 ₁Be sleeved on the impeller shaft 30, the medial shaft of more than half outer protruding cylinder surface during 7 blade 28a of impeller 28 and preceding supporting station 29d medial shaft are faced directly, back supporting station 29e all leaves running clearance between facing directly, before 2 the vertical boundary lines (by more than half outer protruding cylinder surface in preceding supporting station 29d respectively with left side plane and right side Plane intersects form) of supporting station 29d medial shaft in facing directly identical and this is apart from the radius less than impeller 28 to the distance of drain pan 29 axis

Stacked index dial 5 on the train wheel bridge 6, the center of index dial 5 has a through hole 5a, be printed on the scale mark and the corresponding numeral that show water volume on the outer rim on index dial 5 surfaces, the upper end of final stage output shaft 23 is passed behind jack 6h on the train wheel bridge 6 and the through hole 5a on the index dial 5 with the inner socket of pointer 4 successively and can be driven pointer 4 and rotates, transparent panel 2 and O-ring seal 3 are housed in the loam cake 1 successively, the outer rim of transparent panel 2 bottom surfaces is provided with the 2a of showing rod, when this water meter of assembling, can be according to the internal volume of tank, the 2a of showing rod is referred to respective digital place on index dial 5, like this, when pointer 4 reclines with the 2a of showing rod, then show in the tank fills with water, in addition, when pointer 4 reclines mutually with the 2a of showing rod and stops operating, final stage output shaft 23 is still rotatable, can avoid twisting off pointer 4 like this, the loam cake 1 of interior dress transparent panel 2 and O-ring seal 3 spins with the top of drain pan 29, and power input shaft 26 is 10000: 1 with the rotating ratio of final stage output shaft 23.

For ease of making and assembling, power input shaft 26 and gear 27 and impeller 28, first transmission shaft 9 and duplicate gear 10, second transmission shaft 11 and duplicate gear 12, the 3rd transmission shaft 13 and duplicate gear 14, the 4th transmission shaft 15 and duplicate gear 16, the 5th transmission shaft 17 and duplicate gear 18, the 6th transmission shaft 19 and duplicate gear 20, the 7th transmission shaft 21 and duplicate gear 22, final stage output shaft 23 and gear 24 all adopt integrative-structure

Adopt the elastomeric material except that self-tapping screw 8 selection standard spares, O-ring seal 3 in this water meter, remaining all parts all adopt cheap engineering plastics to make, to save copper material, to reduce cost.

Claims (3)

1, bidirectional watermeter, it comprises that from top to down is encapsulated in the transparent panel (2) between loam cake (1) and drain pan (29), pointer (4), index dial (5), train wheel bridge (6), gear reduction, lower plate (25), power input shaft (26), impeller shaft (30), gear reduction is fixed between train wheel bridge (6) and the lower plate (25), power input shaft (26) is gone up from top to down and is provided with gear (27) and impeller (28), the final stage output shaft (23) of gear reduction and pointer (4) socket, the bottom of drain pan (29) is provided with the horizontal water inlet tap (29a) of coaxial line symmetrically, faucet (29b), it is characterized in that: the bottom in the drain pan (29) is interconnected and symmetrically arranged intake antrum (29f), flow chamber (29g), water chamber (29h), the inner mouth of a river sectional area of intake antrum (29f) is identical with the inner mouth of a river sectional area of water chamber (29h), impeller shaft (30) vertically is installed on interior housing (29) bottom surface, flow chamber (29g), impeller (28) places flow chamber (29g) and is sleeved on the impeller shaft (30), impeller (28) is gone up uniform identical blade (28a) more than 3, symmetric profile during blade (28a) adopts.

2, bidirectional watermeter according to claim 1 is characterized in that: power input shaft (26) is 10000: 1 with the rotating ratio of final stage output shaft (23).

3, bidirectional watermeter according to claim 1 is characterized in that: the bottom surface outer rim of transparent panel (2) is provided with showing rod (2a).

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