CN2246794Y

CN2246794Y - Small water meter with plastic shell

Info

Publication number: CN2246794Y
Application number: CN 95215961
Authority: CN
Inventors: 姜兴龙
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-07-04
Filing date: 1995-07-04
Publication date: 1997-02-05
Anticipated expiration: 2005-07-04

Abstract

The utility model discloses a small water meter with a plastic shell. An upper and a lower chambers are respectively composed of a meter shell, and an upper and a lower clamping plates. The inner part of the lower chamber is provided with an impeller shaft, and an impeller and gear combination. The inner part of the upper chamber is provided with a reduction gear. The inputted power is counted by that a worm and gear combination is driven by the reduction gear to drive a character wheel and a cone to rotate. The upper clamping plate is formed into a transparent body which is used for displaying the count, is connected with the meter shell through the concave and convex buckling, and is provided with an O-shaped sealing ring to carry out the pressing and sealing. The utility model has the advantages of simple structure, easy processing and assembly, copper material saving, easy reading, and stable and reliable metering accuracy. The utility model is especially suitable for metering water consumption for a water purifier, and is convenient to replace filter media.

Description

Mould the small-sized water meter of shell

The utility model relates to the counting assembly of tap water flow, particularly water purifier has been purified the metering of the water yield.

Water meter is the instrument that water unit and family must be provided with, and it can be counted the tap water flow and inform user's water consumption.Raising along with material life, for healthy, people are more and more higher to the quality requirements of potable water, so water purifier has entered huge numbers of families, but the filter medium in the water purifier is that certain term of life is arranged, going beyond the time limit promptly lost efficacy must change, the user in use often can't write down water consumption what, cause the water purifier filter medium to exceed the time limit and perform practically no function, perhaps be not fully utilized and cause waste, therefore, a kind of water purifier indicator of limiting the quantity of is pressing for of current society.The train wheel bridge of original water gauge structure is provided with glass to show reading and to be threaded with train wheel bridge with cover plate made of copper, not only complex structure, processing inconvenience, and amount of copper consuming is big.

Task of the present utility model be to provide a kind of simple in structure, easy to process, economical with materials, metering sensitivity higher mould the small-sized water meter of shell, to satisfy the water metering needs of water purifier.

The utility model is achieved by the following scheme: form upper and lower two chambers by the watchcase with inlet opening, apopore, train wheel bridge, lower plate, on the lug, axle is provided with impeller gear set zoarium to the impeller shaft two supports of lower chambers in train wheel bridge and watchcase; Be provided with the gear reduction of the transmission that is meshed with its gear in the upper chamber, the power drive gear on worm assembly of input drives character wheel, gear wheel rotates counting, its invention is that train wheel bridge is the transparent body that shows counting, it is withheld load with being connected of watchcase by both concavo-convex and connects, and " O " RunddichtringO is set between train wheel bridge groove and watchcase inclined-plane.

This water meter is compared with known water meter, simplifies the structure, and is convenient to processing, assembling, save copper material, reading is easy, and measuring accuracy is reliable and stable, be applicable to that hydraulic pressure is not high, flow sensitivity, the higher water purifier of accuracy requirement measure the water yield that enters, so that in time change filter medium.

Fig. 1 is the utility model structural representation.

Fig. 2 is the vertical view (removing train wheel bridge) of Fig. 1.

Embodiment remakes and describes in further detail with reference to the accompanying drawings.

Mould the most parts in addition of the small-sized water meter of shell (referring to Fig. 1-2) and make, have corrosion-resisting function with plastic material.Form upper and lower two chambers by watchcase (1), train wheel bridge (3), lower plate (4), the impeller shaft of lower chambers (13) two supports is in train wheel bridge and watchcase on the lug, axle is provided with impeller gear set zoarium (11), the inlet opening of watchcase (14), apopore (10) communicate with blade wheel chamber and 10～12 millimeters of off normals, it is little to make it have an internal resistance, moment is big, be convenient to use in the little occasion of pressure reduction, simultaneously the inlet opening is designed to half-angle and is 6 °～8 ° taper hole, the formation flow quickens, and improves metering sensitivity greatly.The lower end of impeller shaft is provided with agate cushion block (12), and the agate of high rigidity is wear-resisting, and is little with the friction factor of impeller shaft, the sensitivity that can improve table.

Train wheel bridge is for showing the transparent body of counting, make by transparent plastic, save part in addition such as digital display window and cover plate, it is withheld load with being connected of watchcase by both concavo-convex and connects, the protruding discount interest of train wheel bridge groove and watchcase is pressed into self elasticity of plastics and is connected one, and between train wheel bridge groove and watchcase inclined-plane " O " RunddichtringO (2) is set, and reaches to press-fit sealing effectiveness, if use in the higher occasion of pressure, ultrasonic soldering also can be carried out in the junction of train wheel bridge and watchcase.

Be provided with the tertiary gear reducing gear (5) of the transmission that is meshed with impeller gear set zoarium in the upper chamber, the power drive gear on worm assembly (15) of input drives character wheel (6), gear wheel (9) rotates counting.The character wheel of record water yield data adopts digicounter, and it is sleeved on the print wheel shaft (7), and print wheel shaft is bearing in train wheel bridge two grooves, has the automatic clear function, can be used on repeatedly the environment of quantative water supply.The bearing pin of suit gear wheel (8) also is bearing in the train wheel bridge two lug holes.

Mould the small-sized water meter of shell and be arranged between original water gauge and the water purifier, water purifier is carried out water consumption measurement.

Claims

1. mould the small-sized water meter of shell for one kind, form upper and lower two chambers by the watchcase (1) with inlet opening (14), apopore (10), train wheel bridge (3), lower plate (4), on the lug, axle is provided with impeller gear set zoarium (11) to the impeller shaft of lower chambers (13) two supports in train wheel bridge and watchcase; Be provided with the gear reduction (5) of the transmission that is meshed with its gear in the upper chamber, the power drive gear on worm assembly (15) of input drives character wheel (6), gear wheel (9) rotates counting, it is characterized in that described train wheel bridge (3) is for showing the transparent body of counting, it is withheld load with being connected of watchcase (1) by both concavo-convex and connects, and " O " RunddichtringO (2) is set between train wheel bridge groove and watchcase inclined-plane.

2. the small-sized water meter of shell of moulding as claimed in claim 1 is characterized in that described impeller shaft lower end is provided with agate cushion block (12).

3. the small-sized water meter of shell of moulding as claimed in claim 1 is characterized in that described watchcase inlet opening (14) is taper hole.