CN202018310U

CN202018310U - Pulse flowmeter

Info

Publication number: CN202018310U
Application number: CN2011200663834U
Authority: CN
Inventors: 权纯虎
Original assignee: YANTAI ZHENZI INDUSTRY TRADING Co Ltd
Current assignee: YANTAI ZHENZI INDUSTRY TRADING Co Ltd
Priority date: 2011-03-06
Filing date: 2011-03-06
Publication date: 2011-10-26
Anticipated expiration: 2021-03-06

Abstract

The utility model relates to a pulse flowmeter, in particular to a pulse flowmeter which is used for a water treatment tank and can be rapidly connected with a water pipe. The pulse flowmeter comprises a shell, a cover, a rotor, a rotor shaft, a permanent magnet, a permanent magnetic cap, a Hall sensor, a water inlet, a water outlet and a hoop, wherein a basin-shaped cavity is arranged in the shell, the water inlet and the water outlet are communicated with a cavity formed by the shell and the cover, the hoop is used for press fit of the shell and the cover, the rotor shaft perpendicular to the bottom plane of the cavity is fixed at the central position of the cavity, a rotor is arranged on the rotor shaft, the permanent magnetic cap is fixed at the top of the rotor, the permanent magnet is fixed in the permanent magnetic cap, the permanent magnetic cap is easily accommodated in a pit at the bottom of the cover, and the Hall sensor is fixed in a groove at the top of the cover by using glue. The pulse flowmeter has higher sensitivity and a compact structure and can be rapidly connected with the water pipe.

Description

The pulse flow meter

Technical field

The utility model relates to a kind of flowmeter, and particularly a kind of water flow meter that is used for the water treatment tank pipeline and can be connected fast with pipeline belongs to the technical field of daily life water.Also can be applicable to dish-washing machine, water valve, open the technical field that tap etc. needs metering water use amounts.

Background technology

Because the aggravation of environmental pollution, people's safe drinking water obtains paying attention to day by day, various device for purifying potable water also successively enter people's life, as the heart of purification plant---a large amount of standardized production and the replacing easily of filter core, bring great convenience for people's Drinking Water.But when the purification filter core of water purifier changes bad accurate judgement on earth, needs a kind of flow meter specially to control, and change the time accurately with definite, thereby the purification function of guaranteeing purification plant does not go down.The rotor of present existing flowmeter mostly adopts the structure that is similar to screw propeller, the turning axle of rotor is parallel with water (flow) direction, when current pass through the spiral impeller of rotor, the rotation of drive rotor, thereby the permanent magnetism cap of installing on drive rotor rotation, rotor revolves to go around and the permanent magnetism cap is revolved go around, the permanent magnetism cap revolves to go around just gives electric signal of Hall element, what change the rotation of permanent magnetism cap, also give what electric signals of Hall element, like this, these electric signals are passed to control circuit be transformed into numeral and show, just can calculate flow, flux cumulating just can be shown total flow as long as determine the water inlet caliber and the flow velocity of water flowmeter for water clarifier, the water purification of determining water purification catridge is after the life-span, and just the utilizable flow meter is controlled the concrete replacing opportunity of this filter core.

But there is certain defective in the flowmeter of existing this structure: because the turning axle of rotor is parallel with water (flow) direction, the rotation of rotor needs current to reach certain pressure and speed, when the pressure of current and speed are very little, though there are current to pass through rotor, but rotor does not rotate, cause sensitivity very poor like this, the accuracy of metering is not high yet.And the water delivering orifice of existing flowmeter and water inlet and water pipe be connected that general what adopt is screw-threaded coupling or socket, the locking situation of leaking that causes not in place takes place easily.Moreover because the family expenses clarifier generally all is the equipment of miniaturization, connect compact between each parts, the space is very little, in the process of assembling, and the flowmeter and the very difficulty that becomes being connected of water pipe, not only need certain operating experience, also need to spend the regular hour, and because the difference of operator's technology and sense of responsibility, people urgently wish to have a kind of flowmeter that can be connected with water pipe very quickly, enhance productivity on the one hand, improve consistency of product and reliability on the other hand.

In the process of clarifier after-sales service, there is such problem equally.

The utility model content

The utility model is just providing that a kind of like this sensitivity is higher, compact conformation, the flowmeter that can be connected with water pipe very quickly.

The technical solution of the utility model is: the pulse flow meter, the housing that basin shape cavity is arranged in it comprises, lid, rotor, armature spindle, permanent magnet, the permanent magnetism cap, Hall element, the water inlet and the water delivering orifice that are communicated with the cavity of housing and lid formation, the cuff that housing and lid are pressed together, an armature spindle perpendicular to the cavity baseplane is fixed in the center of cavity, install rotor on the armature spindle, the top of rotor is the permanent magnetism cap fixedly, permanent magnetism cap internal fixation has permanent magnet, the permanent magnetism cap is contained in the pit of cover bottom spaciously, in the groove of the solid cap top of Hall element glue.

Further, water inlet and water delivering orifice depart from the central point of cavity.

Again further, be with O-ring seal on the lateral margin of lid.

Again further, the free end of water inlet and water delivering orifice all is equipped with by connecing soon that rubber ring, plastics button, plastics collet are formed.

Can also be that an end of plastics collet has four equally distributed pawl heads that have boss, and the inwall of each pawl head is inlaid with the curved metal cat's paw.

The utility model compared with the prior art because that the acting force of water inlet current directly acts on the arm of force of spinner blade is bigger, as long as therefore flow is arranged, rotor will rotate, so sensitivity is higher and metering is more accurate.Employing connects mode soon and connects, and has easy, the practical and reliable good effect of assembling.Adopt cuff just housing and lid press together and do not use screw to fix or the method for hot melt, have not easy to crack, avoid seepage, assembling easy, be easy to maintenance and change wearing terrain, save many good effects such as material and energy consumption.

Description of drawings

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

Fig. 2 is the vertical view of parts 1 housing among Fig. 1.

Fig. 3 is the enlarged diagram of the utility model collet structure.

Fig. 4 is the enlarged diagram of the utility model cuff structure.

Among the figure: 1, housing, 2, lid, 3, rotor, 4, permanent magnet, 5, the permanent magnetism cap, 6, O-ring seal, 7, Hall element, 8, armature spindle, 9, rubber ring, 10, the plastics button, 11, the plastics collet, 12, cuff, 1-1, water inlet, 1-2, water delivering orifice, 11-1, pawl head, 11-2, cat's paw.

Embodiment

Embodiment one: with reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4.

Cavity center in the housing 1, perpendicular to the fixing installing in cavity baseplane armature spindle 8; The permanent magnet 4 of packing in the cylindrical end tangs on the top of rotor 3, the boss gummed of permanent magnetism cap 5 and apex rotor or heat seal are enclosed within rotor 3 then and establish on the armature spindle 8 together, and rotor 3 can be rotated freely around armature spindle 8; Rubber ring 9 is enclosed within on the lateral margin of lid 2 (injection molded) and (guarantees the non-leakage of water), with cuff lid 2 is pressed together on the housing 1 then, and at this moment, permanent magnetism cap 5 will be placed in the pit at lid 2 centers; Again Hall element is placed in the groove at lid 2 tops and use adhesive to solidify.This moment, Hall element was corresponding across one deck plastics with permanent magnet.

The outside of water inlet 1-1, water delivering orifice 1-2 all has by rubber ring, plastics button and water inlet, water delivering orifice tube wall interference fit or bonding or high-frequency welding, and collet embeds the plastics button, has so just formed soon to connect.When oral siphon or rising pipe insert when connecing soon, the metal cat's paw that oral siphon or rising pipe are inlayed on the collet tightly blocks, thoroughly sealing under the effect of rubber ring.In the time of need extracting, press collet inwards with finger, oral siphon or rising pipe just can be extracted lightly, and be very convenient.Like this, a kind of water flowmeter for water clarifier is just assembled and is finished.

During use, in the water purifier water pipeline that the utility model is serially connected in, as long as water purifier discharges water, just there are current to flow through in it and drive the rotor rotation, thereby make and be fixed on epitrochanterian permanent magnet and also rotate, like this, the Hall switch that is fixed on the lid just obtains the magnetic signal that permanent magnet rotates, Hall switch becomes electric signal with this magnetic signal and passes to control circuit and show concrete numeral, control circuit just shows corresponding filter core integrated flow with data on flows at display screen, realize the concrete replacing opportunity of this filter core of control, i.e. the purpose of this utility model.

Above method only is preferred embodiment of the present utility model; be not to be used to limit protection domain of the present utility model; all within spirit of the present utility model and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.

Claims

1. pulse flow meter, it comprises housing, lid, rotor, armature spindle, permanent magnet, the permanent magnetism cap, Hall element, the water inlet and the water delivering orifice that are communicated with the cavity of housing and lid formation, the cuff that housing and lid are pressed together, it is characterized in that fixing a armature spindle perpendicular to the cavity baseplane in the center of described cavity, install rotor on the armature spindle, the top of rotor is the permanent magnetism cap fixedly, permanent magnetism cap internal fixation has permanent magnet, the permanent magnetism cap is contained in the pit of cover bottom spaciously, Hall element glue solid with the groove of the corresponding cap top in permanent magnet position in.

2. pulse flow meter according to claim 1 is characterized in that described water inlet and water delivering orifice depart from the central point of cavity.

3. pulse flow meter according to claim 1 is characterized in that being with O-ring seal on the lateral margin of described lid.

4. pulse flow meter according to claim 1 and 2 is characterized in that the free end of described water inlet and water delivering orifice all is equipped with by connecing soon that rubber ring, plastics button, plastics collet are formed.

5. pulse flow meter according to claim 4 it is characterized in that an end of described plastics collet has four equally distributed pawl heads that have boss, and the inwall of each pawl head is inlaid with the curved metal cat's paw.