CN2252330Y

CN2252330Y - Bidirectional horizontal spiral-wing type water meter

Info

Publication number: CN2252330Y
Application number: CN 95231665
Authority: CN
Inventors: 吴祖舜; 宋永章; 徐秉纯; 马威娜; 李礼栋
Original assignee: SHENYANG CITY WATER CORP
Current assignee: SHENYANG CITY WATER CORP
Priority date: 1995-07-11
Filing date: 1995-07-11
Publication date: 1997-04-16
Anticipated expiration: 2005-07-11

Abstract

The utility model relates to a bidirectional horizontal spiral-wing type water meter, which comprises a meter case, a wing wheel assembly, a rectifier, and a gear stored count mechanism. The utility model is characterized in that the back side of the gear stored count mechanism is connected with a set of planet differential gear trains, namely, a ratchet and a detent mechanisms, which are used for driving two sets of counters which are used for measuring the bidirectional water flow. The utility model has the advantages that the water flow of the bidirectional flow in a pipe passage can be measured accurately, the water meter is suitable for water supply systems with multiple water sources and annual pipe networks in big and middle cities, and the manufacturing cost of the water meter is lower than the manufacturing cost of the existing bidirectional meter because of the realization of bidirectional metering by a simple gear train.

Description

The two-way horizontal helical vane type water meter

The utility model is a kind of flow-meter, particularly is applied to the two-way horizontal helical vane type water meter of big and medium-sized cities looping network water system pipeline metering usefulness.

Common ducted liquid is all towards a direction stream, as water in indoor domestic water, the factory district and the naval vessel all is.Therefore, it is unidirectional being used for the flowmeter great majority of metering liquid flow, promptly only a direction flowing liquid is measured.

But in some occasions, two-way flow can appear in same ducted fluid, i.e. the phenomenon that all will flow in positive and negative direction, and need measure bidirectional traffics.As the urban district pipe network of city tap-water company, under the condition that the multi-water resources looping network supplies water, the water supply main line of some subregions just there is two-way situation of coming water, for cost accounting be convenient to supply water and manage, will measure bidirectional traffics.Have again on submarine, be used for adjusting the water of submarine travel condition, flow to water storage cabin, back, or all need measure, so need have " just, reflux flow meter " or " two-way turbo flow meter " to serve for it by storage cabin before the flow direction of storage cabin, back by preceding water storage cabin.But these two kinds of flowmeters all have its limitation at present.The former metering arithmetic section is to finish with gear train, and its segment count has only a cover, with just commentaries on classics, the counter-rotating of gear driven pointer, the forward addend, reverse subtrahend, pointer demonstrates the poor of forward and reverse flow, and can not distinguish following each total amount to fluid of meter separately; And the latter distinguishes with the phase differential that sensitive element produces when forward and reverse rotate to debate not forward and reverse flow, measure through electronic circuit amplification, calculating and then plus-minus formula, a whole set of instrument is made up of sensor and secondary instrument, its cost is very high, with DN100, DN150 bore is example, and price is all in tens thousand of units.

The purpose of this utility model provides a kind of can two-wayly the metering respectively, has the accuracy that needs again, stable performance, durable, particularly cheap two-way water meter.

The purpose of this utility model is achieved in that it comprises watchcase, wing wheel assembly, rectifier, gear stored count mechanism, it is characterized in that: after gear stored count mechanism, connect cover planet differential system a---ratchet and pawl arrangement, and drag the counter that two covers measure both direction discharge respectively by it.

This planet differential system---ratchet and pawl arrangement comprises framework, Di Hegai, and the conical gear A from counting mechanism is introduced respectively has a transverse axis on left and right framework, right transverse axis is installed on the right frame, axle head fixed installation conical gear C, suit conical gear B meshes with conical gear A thereafter.On the axle in the right frame outside, the counter that has right ratchet device to be connected with shaft joint; Left transverse axis is installed on left frame, and axle head has conical gear E, and its left side is with wheel cap, and there is left ratchet device in the left frame outside.Be fixed with support on the wheel face of gear B, it and wheel cap connect into bracket component, form the goalpost shape of hollow, and conical gear D and conical gear F are installed on two surface levels of bracket component, and conical gear C, D, E, F intermesh.

The number of teeth relation of each conical gear is ZB=2ZA; Z _C=ZD=ZE=ZF.

Counter adopts drum type letter disk counter.

Ratchet in the ratchet device is installed on the left and right framework.

Principle of the present utility model is: when ducted water flows from left to right, promote the gear counting mechanism, conical gear A clockwise direction is rotated, driving conical gear B rotates counterclockwise, bracket component rotates around transverse axis with conical gear B simultaneously, conical gear C, D, E, F rotation simultaneously, because conical gear C counterclockwise rotates, ratchet is not restricted by ratchet, make the right side counter works, meter is the mobile water yield of dextrad down, and this moment, conical gear E should be to counterclockwise rotating, but be subjected to the restriction of left ratchet device and can not rotation, therefore the left side counter is not worked.When ducted water by about when flowing left, drive conical gear A and counterclockwise rotate, conical gear B clockwise direction is rotated, right ratchet does not rotate, so not rotation of conical gear C, right counter is not worked; Conical gear D and F rotate counterclockwise, and conical gear E clockwise direction is rotated, and left ratchet rotates, thereby makes left counter works, the water yield that meter flows down from left to right.

The utility model has the advantages that: in the big city, under the condition that multi-water resources city loop network supplies water, the hydraulic pressure of city zones of different often changes, accurately measure this value for the output of appraising and deciding this directorial area, sell the water yield, wastage is very important.Because this table can bidirectional measuring, the unwise amount that causes through to commutation the time is revised, and can accurately grasp the regional water supply amount, consolidates management and administration, because it realizes bidirectional measuring by simple gear train, more existing bidirectional watermeter cost reduces greatly.

Details of the present utility model is provided by following examples and accompanying drawing thereof:

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is that planet differential of the present utility model is---ratchet and pawl arrangement figure.

Fig. 3 is Fig. 2 medium-height trestle synoptic diagram.

Fig. 4 is the vertical view of Fig. 3.

With reference to the accompanying drawings, the utility model comprises watchcase 17, hub plate 15, wing wheel assembly 16, rectifier 18, by upper and

lower shaft coupling

13,14 connection gear stored count mechanisms 12, the shell 11 of gear stored count mechanism 12, be connected with watchcase 17 flanges, counting mechanism 12 upper ends connect conical gear A by shaft coupling 9.Same as the prior art with top.Connected sealing gasket 10 in the upper end of counting mechanism 12 and connect housing 5, loam cake 19 is fixed on the housing 5 by screw 20, and two viewports 1 are arranged on it.Two counter-support 21 about housing bottom is screwed.The central shaft of counter 6 connects left and right transverse axis by shaft coupling 4, planet differential has been installed is 13 and ratchet and pawl arrangement 2 on the transverse axis.

With reference to the accompanying drawings 2, planet differential system---ratchet and pawl arrangement comprises: the conical gear B on conical gear A and the right transverse axis meshes, and left and right transverse axis is installed on the framework 7, and framework 7 is connected with the ends 28 usefulness screw 27, and framework 7 tops cover 22.Fixed support 8 with screw 25 on the conical gear B wheel face, the wheel cap 23 usefulness screws 25 on this support and the left transverse axis link into an integrated entity, and little axle 26 is housed on its last lower horizontal plane, have conical gear D and F to be contained in respectively on the little axle.C, D, four conical gear of E, F intermesh, and ratchet 2 usefulness screws 24 are packed in the outer end of left and right horizontal axle, and ratchet 29 is contained in left and right frame 7 outsides.

The utility model is gone slick through development test, and is stable and reliable for performance.

Claims

1, two-way horizontal helical vane type water meter, it comprises watchcase, wing wheel assembly, rectifier, gear stored count mechanism, it is characterized in that: after gear stored count mechanism, connect cover planet differential system a---ratchet and pawl arrangement, and drag the counter that two covers measure both direction discharge respectively by it.

2, two-way horizontal helical vane type water meter according to claim 1, it is characterized in that: described planet differential is---ratchet and pawl arrangement comprises framework, Di Hegai, conical gear A from the counting mechanism introducing, one transverse axis is respectively arranged on left and right framework, right transverse axis is installed on the right frame, axle head fixed installation conical gear C, suit conical gear B meshes with conical gear A thereafter; On the axle in the right frame outside, the counter that has right ratchet device to be connected with shaft joint; Left transverse axis is installed on left frame, and axle head has conical gear E, and its left side is with wheel cap, and there is left ratchet device in the left frame outside; Be fixed with support on the wheel face of gear B, it and wheel cap connect into bracket component, form the goalpost shape of hollow, and conical gear D and conical gear F are installed on two surface levels of bracket component, and conical gear C, D, E, F intermesh.

3, two-way horizontal helical vane type water meter according to claim 1 is characterized in that: the number of teeth relation of each conical gear is ZB=2ZA; Z _C=ZD=ZE=ZF.

4, two-way horizontal helical vane type water meter according to claim 1 is characterized in that: used counter adopts drum type letter disk counter.

5, two-way horizontal helical vane type water meter according to claim 1, it is characterized in that: the ratchet in the described ratchet device is installed on the left and right framework.