CN2083288U - Portable standard water meter - Google Patents

Abstract

Disclosed is a portable standard water meter. The utility model has the technical proposal that an impeller sleeve is arranged in the inner cavity of a meter body; the outer surface of the impeller sleeve is opened with a rectangular groove; the inner cavity of the meter body is also opened with a rectangular groove; consequently, a rectangular regulating channel is formed; the meter body is provided with regulating screws which change the flow area of the rectangular regulating channel; the inner cavity of the impeller sleeve is provided with an anterior and a back flow deflectors and an impeller which is provided with an impeller shaft; the gearwheel of a pointer type meter head is engaged with a pinion which is assembled on the impeller sleeve; a worm gear is arranged between the pinion and the impeller shaft, and the worm gear is connected with the pinion and the impeller shaft; a valve gasket controlled by a trigger piece is arranged in the meter body so that the turnon and the turnoff of a valve are realized. The utility model as a testing water meter for civil use has the advantages of convenient metering, small size, light weight, convenient carrying, no power supply requirement, and low working condition requirement.

Description

Portable standard water meter

The utility model belongs to a kind of calibrating installation of domestic water meter.

At present, water resource management department mainly is to use a kind of measuring device formula water meter calibration device to carry out to the calibrating of domestic water meter, the big (30-85dm of this calibrating installation volume ³), Heavy Weight (10-20Kg), be not easy to carry, its measuring process is the volume and the time of earlier measuring the water yield with measuring device, controls with the tested flow of expressing synchronously again by solenoid valve on it and electric contact, finally demonstrates traffic figure by digital display meter, therefore measure cumbersome, this measuring device formula water meter calibration device does not have electricity can not work, water funk short circuit of digital display meter simultaneously and collision, and service condition requires than higher.

The purpose of this utility model provides a kind of calibrating installation of mechanical type domestic water meter, and it adopts comparative measurement method, can directly read volumetric values from gauge outfit, measure easyly, and volume is little, and is in light weight, be easy to carry, do not need power supply just can work, not water funk wet and collision.

The purpose of this utility model is achieved in that the top of table body connects with pointer header, and the two ends of table body connect with water inlet pipe, rising pipe respectively.Inner chamber at the table body is equipped with impeller set; The outside surface of impeller set has a rectangular channel, and the table intracoelomic cavity also has a rectangular channel on the position on the other side, constitutes a rectangle and regulates passage; On the table body, be assembled with and change the set screw that rectangle is regulated channel cross-sectional flow area; At the affixed forward and backward flow deflector of impeller set inner chamber, between forward and backward flow deflector, be assembled with the impeller of band impeller shaft.After current enter the impeller set inner chamber from water inlet pipe, through preceding flow deflector, promote wheel rotation, discharge from the back flow deflector then.Pointer header has a gear wheel, gear wheel and the pinion that is assembled on the impeller set; Be connected with worm gear pair between pinion wheel and impeller shaft, when impeller shaft rotates, drive pinion rotation by worm gear pair, pinion wheel drives the gauge outfit gear wheel and rotates.In the table body communication port is arranged, the valve pad of band valve rod is housed on it, table body lower set is equipped with valve gap, and valve rod is installed on the valve gap, on extension spring two ends affixed valve pad of difference and the valve gap; Valve rod is exposed to the valve body outer end and is connected by bearing pin with trigger piece, and the valve rod exposed parts installs compression spring; The termination of trigger piece is connected on the table body by bearing pin.When trigger piece was in free state, because the extension spring effect is sealed on the communication port valve pad, current can not discharged from rising pipe; When pulling trigger piece with hand, overcome the extension spring elastic force as ovable valve stem, jack-up valve pad, current just can pass through from communication port, discharge from rising pipe.

On trigger piece of the present utility model, hook is housed, by the little trigger piece of bearing pin connecting band gib head, the hook on the trigger piece is hooked on the gib head of trigger piece on the table body, make its stationkeeping, just can make communication port be in open mode within a certain period of time.

Principle of work: the below that the utility model is connected user's water meter, current enter the water inlet pipe of this device behind user's water meter, pull trigger piece, valve pad is opened, current just flow out from rising pipe, flowing water flow is impacted the impeller rotation, the rotating speed of impeller is directly proportional with the flow velocity of current, the impeller that rotates, through impeller shaft and worm gear pair transmission, drive pinion wheel and gear wheel and rotate, the gear wheel that wheel rotation is at a high speed changed into low speed rotates, thereby the pointer in the drive gauge outfit is walked about, and can directly read the metering numeral.For making this device accurate measurement, before dispatching from the factory,, make its spinning in and out change the circulation area that rectangle is regulated passage by turning set screw, with the compensation main channel flow error that numerical value shows on gauge outfit, improve its order of accuarcy.

The utility model has the advantages that: can directly read volumetric values on gauge outfit, measure easyly, and volume is little, and is in light weight, is easy to carry, and do not need power supply, not water funk wet and collision, and condition of work requires lower.

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

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

See Fig. 1, above table body 5, be connected with gauge outfit 7, one end of table body 5 connects water inlet pipe 1, and the other end connects rising pipe 16, and the inner chamber of table body 5 is equipped with impeller set 4, the front end of impeller set 4 is equipped with preceding flow deflector 2, back flow deflector 6 is equipped with at the middle part of impeller set 4, assembling impeller 3 in the middle of forward and backward flow deflector 2,6, and the impeller shaft 26 of impeller 3 passes the center pit of back flow deflector 6, the end activity is installed on the axle sleeve 12 that is fixed on the impeller set, and worm screw 10 is arranged on the impeller shaft 26; Install worm-wheel shaft 8 on the impeller set 4, be connected with worm gear on it, worm-wheel shaft 8 connects pinion wheel 9 in the outside of impeller set 4, with gear wheel 11 engagements of pointer header 7.Outside surface has rectangular channel below impeller set 4, and table body 5 inner chambers also have a rectangular channel on the relative position with it, and two grooves constitute a rectangle and regulate passage 21, and screw thread is screwed set screw 25 on table body 5.In table body 5, have communication port, valve pad 13 is housed on it, valve pad 13 following affixed valve rods 19, table body 5 lower thread are screwed valve gap 20, on the valve gap 20 center pit are arranged, and valve rod 19 is installed on the valve gap 20.Extension spring 14 two ends are screwed to fix respectively on valve pad 13 and valve gap 20, install compression spring 15 at the exposed parts of valve rod 19, and the exposed junction of valve rod 19 is connected with trigger piece 23 by bearing pin 18, and the termination of trigger piece 23 is connected by bearing pin 17 and shows on the body 5.The affixed hook 22 of trigger piece 23 screwings, the little trigger piece 24 of band eave tile are connected on the table body 5 by bearing pin.

Claims (2)

1, a kind of portable standard water meter comprises pointer header, table body, water inlet pipe, rising pipe, and it is characterized in that: the inner chamber at the table body is equipped with impeller set; The outside surface of impeller set has a rectangular channel, and the table intracoelomic cavity also has a rectangular channel on the position on the other side, constitutes a rectangle and regulates passage; On the table body, be assembled with and change the set screw that rectangle is regulated channel cross-sectional flow area; At the affixed forward and backward flow deflector of impeller set inner chamber, between forward and backward flow deflector, be assembled with the impeller of band impeller shaft; Pointer header has a gear wheel, gear wheel and the pinion that is assembled on the impeller set; Be connected with worm gear pair between pinion wheel and impeller shaft, in the table body communication port arranged, the valve pad of band valve rod is housed on it, table body lower set is equipped with valve gap, and valve rod is installed on the valve gap, and the extension spring two ends are fixed in respectively on valve pad and the valve gap; Valve rod is exposed to the valve body outer end and is connected by bearing pin with trigger piece, and the exposed parts of valve rod installs compression spring; The termination of trigger piece is connected on the table body by bearing pin.

2, standard water meter according to claim 1 is characterized in that: hook is housed on the trigger piece, on the table body by the little trigger piece of bearing pin connecting band gib head.

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