CN2225665Y

CN2225665Y - Small flow liquid meter

Info

Publication number: CN2225665Y
Application number: CN 95203121
Authority: CN
Inventors: 赵金才
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-02-23
Filing date: 1995-02-23
Publication date: 1996-04-24
Anticipated expiration: 2005-02-23

Abstract

The utility model relates to a small flow liquid meter. Because a fine jet tube which can adjust angles is arranged in the sway post portion of a jet subassembly, the impeller subassembly arranged in the center of a shell is made by that impellers which is made of light metal sheets and has 16-26 teeth are connected with the shell by impeller shafts whose both ends are spiculate, pinhole-shaped gem bearings and a bearing seat. The impeller shafts are provided with a magnetic steel, a centre gear shaft whose both ends are spiculate is provided with a magnetic steel, and the homopolarity of the two magnetic steels is relative disposition, so the utility model not only can effectively measure small flow of liquid flow, but also has the advantages of light weight, high precision, and long service life, being specially suitable for metering of household fuel oil cookers.

Description

The low flow rate liquid gauging table

The utility model relates to a kind of liquid flow measurement device, particularly low flow rate liquid gauging table.It is applicable to the metering of family expenses kitchen tool low discharge oil mass, also is applicable to the metering of other low flow rate liquids simultaneously.

Usually the flowmeter that adopts during the metering liquid flow mostly is the large capacity meter scale, and it comprises fluidic module, impeller assembly, gear train and indicating mechanism.When liquid flows under the certain pressure effect, jet pipe through fluidic module flows the directive impeller assembly with liquid, makes wheel rotation, and drives the central gear rotation of gear train, thereby the gears at different levels that drive gear train rotate, and make the pointer of indicating mechanism indicate the fluid flow of the gauging table of flowing through respectively.But, because the jet pipe diameter in this gauging table fluidic module is thicker, impeller is heavier and the number of teeth is less, 6 teeth are only arranged, the blade of each tooth is wing, and the gauging table internal clearance is bigger, and the storage liquid measure is more, can only be used for measuring with liter (L) is the fluid flow of unit, and its range of application is restricted.

The purpose of this utility model is to provide a kind of low flow rate liquid gauging table, and it can carry out the metering of low flow rate liquid effectively, and makes the least unit of liquid flow mearuement reach milliliter (ml).

Its solution is: be arranged on the fluidic module on the upper shell sidewall, by joint pin, there is the through hole that is partly formed certain angle by straight hole part and inclined hole its inside, and the screen pack, the sealing gasket that are arranged in the straight hole part compress by the housing screw sealing, one end inserts in the inclined hole part and connected superfine jet pipe constitutes, and the adjustable angle of jet pipe is whole, so that change the direction of directive impeller liquid stream, thereby can guarantee that jet can promote wheel rotation effectively.Be positioned at the impeller assembly of upper and lower casing central authorities, by the impeller that has 16-26 teeth, become the impeller shaft of needle-like by the two ends pivot, pin hole shape jewel bearing and bearing seat are connected with upper and lower casing and constitute.Be provided with magnet steel in the impeller shaft upper end, and in the sun gear shaft lower end of gear train magnet steel arranged, two groups of magnet steel homopolarity positioned opposite form magnetic field therebetween, can drive and sail the central gear rotation.And sun gear shaft two ends pivot becomes needle-like, and is connected with clamping plate with upper shell by pin hole shape jewel bearing and bearing seat.

In addition, impeller is made by the thick light metal thin plate of 0.1-0.4mm, and the basic at right angles shape of its blade.But the internal diameter of jet pipe is 0.1-0.4mm.

The utility model is owing to be connected with the thin jet pipe that can adjust flow angle in the inclined hole part of fluidic module joint pin, and be positioned at, the impeller assembly of lower house central authorities, by the impeller that has 16-26 teeth and make by the light metal thin plate, become the impeller shaft of needle-like by two ends, pin hole shape jewel bearing and bearing seat and last, lower house connects and constitutes, in the impeller shaft upper end magnet steel is arranged, and become the sun gear shaft lower end of needle-like that magnet steel is arranged at two ends, two groups of magnet steel homopolarity positioned opposite, so it not only can measure the flow of low flow rate liquid effectively, and it is in light weight, the measuring accuracy height, long service life, being specially adapted to the lightweight oil is the metering of family expenses kitchen tool rill gauging below 5 milliliters of fuel.

Embodiment of the present utility model is described in detail in conjunction with the accompanying drawings.

Fig. 1 is the front view of low flow rate liquid gauging table.

Fig. 2 is A-A cut-open view.

Fig. 3 is the enlarged drawing of the utility model fluidic module.

Fig. 4 is the enlarged drawing of the utility model impeller assembly and gear train central gear part.

In the accompanying drawing, joint pin (16) is installed on the sidewall of upper shell (3), be provided with the through hole that partly forms certain angle by straight hole part and inclined hole in it, in the straight hole part, screen pack (17), sealing gasket (18) are housed in inclined hole part intersection, compress sealing by screw (19), and the jet pipe (15) that internal diameter is 0.2mm to be made by stainless-steel tube, one end inserts in the inclined hole part of joint pin (16), and adopt soldering to connect, the other end and impeller (10) are adjoining, can adjust its angle, thereby constitute fluidic module to the impeller jet.Suppress the impeller (10) that forms by the aluminium alloy sheet that 0.2mm is thick, 20 teeth are arranged, the rectangular shape of the blade of each tooth, it is by being made by stainless steel and the two ends pivot becomes the impeller shaft (30) of needle-like and is fixed on the bearing seat (29) of lower house (1) central authorities, pin hole shape jewel bearing (28), be fixed on the bearing seat (24) of upper shell (3) central authorities, pin hole shape jewel bearing (25) is connected with upper and lower casing, thereby the formation impeller assembly, and by impeller support (11), gasket seal (2) and screw they are compressed and to be tightly connected.Magnet steel seat (27) through fixedlying connected with impeller (10) is equipped with magnet steel (26) in the upper end of impeller shaft (30), gear train passes through fixedly supporting plate (4), bottom plate (5) and dial plate (9) is housed, arrange the clamping plate (6) of pin (8) to be fixedly mounted on the upper shell (3), and the central gear of gear train (32) becomes the sun gear shaft (21) of needle-like by the two ends pivot, be fixedly mounted on the pin hole shape jewel bearing (33) on the clamping plate (6), bearing seat (20), be fixedly mounted on the pin hole shape jewel bearing (22) on the upper shell (3), bearing seat (23) is connected with upper shell (3) with clamping plate (6), and magnet steel (31) is housed in the lower end of sun gear shaft (21), and two groups of magnet steel (26), (31) homopolarity positioned opposite, thereby constitute the metering watch core, it places in the dust cover (7).

During use, under certain pressure, liquid stream is by jet pipe (15) directive impeller (10), promoting impeller (10) rotates around impeller shaft (30), at this moment, the central gear of gear train (32) rotates and drives transmission gears at different levels and rotates under the magneticaction of two magnet steel (26), (31), can make the pointer of indicating mechanism indicate the flow of liquid respectively, measures purpose accurately to reach.

Claims

1, a kind of low flow rate liquid gauging table, comprise fluidic module, impeller assembly and gear train, it is characterized in that being arranged on the fluidic module on upper shell (3) sidewall, by joint pin (16), the through hole that is partly formed certain angle by straight hole part and inclined hole is arranged in it, and be arranged on screen pack (17) in the straight hole part, sealing gasket (18) compresses sealing through housing screw (19), the thin jet pipe (15) that one end inserts in the inclined hole part constitutes, and the adjustable angle of jet pipe (15) is whole, and be positioned at, lower house (3), (1) Zhong Yang impeller assembly, by the impeller that has 16-26 teeth (10), become the impeller shaft (30) of needle-like by the two ends pivot, pin hole shape jewel bearing (25), (28) and bearing seat (24), (29) with last, lower house connects and constitutes, be provided with magnet steel (26) in the upper end of impeller shaft (30), magnet steel (31) is equipped with in lower end at the sun gear shaft (21) of gear train, two groups of magnet steel homopolarity positioned opposite, and sun gear shaft (21) two ends pivot becomes needle-like, and by pin hole shape jewel bearing (22), (33) and bearing seat (23), (20) be connected with clamping plate (6) with upper shell (3).

2, low flow rate liquid gauging table as claimed in claim 1 is characterized in that the impeller of impeller assembly is made by the thick light metal thin plate of 0.1-0.4mm, and the basic at right angles shape of its blade.

3, low flow rate liquid gauging table as claimed in claim 1 is characterized in that the internal diameter of the jet pipe (15) of fluidic module is Φ 0.1-0.4mm.