CN1313756C - Metering equipment capable of preventing drop leakage - Google Patents

Abstract

The present invention relates to a non-metering appliance capable of preventing drop leakage, which is provided with a box body with an inlet and an outlet, wherein the inlet in the box body is provided with a valve; a valve rod of the valve is connected with a float; the valve is opened or closed by making use of the float; the box body, or the direct connecting component of the box body, or the indirect connecting component of the box body is hinged with an upper rotating float and a lower rotating float; the upper rotating float and the lower rotating float are respectively provided with a limiting part which can contact the upper part and the lower part of the float; only when the water level in the water tank rises, the upper rotating float moves away from the float and releases limit and constraint, or when the water level in the water tank descends, the lower rotating float moves away from the float and releases the limit and the constraint. Accordingly, the float can rapidly and upwards float or rapidly descend and can momentarily open and close the valve with large spans, and the valve can not generate the state of flow quantity of small water drops.

Description

Prevent the non-metering utensil of water clock

Technical field: prevent that the non-metering utensil of water clock from being a kind of being arranged in the tap water delivery line, prevent that the tap water user from utilizing the immeasurable hydrophone tool of stealing of small flow water clock.

Background technique: because the very high precision that general civilian tap water gauge table (abbreviation water meter) can not be made, particularly use the influence of incrustation scale after a period of time, under the flow of little water droplet, gauge table is non-metering often.This has just brought the accurately amount of the little water droplet water of metering user to water utility, has also caused the water phenomenon steathily of unnecessary little water droplet, has brought difficulty for the supplies management of tap water.The existing non-metering utensil of water clock that prevents as the disclosed automatic flow-stop device that drips of 1993.10.13 China's utility model patent specification 2143703 (patent No.s 92238649.8), is made up of outer tube, flow-stop valve, stage clip, leading truck, taper water inlet.This automatic flow-stop device that drips is provided with spring as the stop valve of cutting out power at tap water pipe line exactly, and theory is that the hydraulic pressure trend in the little water droplet flow status of water tap lower pipeline is consistent, closes under the effect of spring by spool; But after the little water droplet of water tap flowed out, the hydraulic pressure of this end of stop valve water tap will descend, and stop valve is opened under the effect of pressure reduction slightly, formed the equinoctial point that little water droplet flows, and did not still reach and stopped the non-metering phenomenon of little water droplet.

Summary of the invention: the present invention is exactly the non-metering problem of small flow water droplet that will solve tap water, provides a kind of use to prevent the non-metering utensil of water clock more reliably.

The present invention prevents the non-metering utensil of water clock, have and bring mouthful casing of outlet into, import in casing has valve, it is cursory that the valve rod of valve is connected with, utilize the cursory spool that cut-off valve connects of opening, it is characterized in that: the indirect link hinge joint of the direct link of casing or casing or casing has goes up that to rotate cursory and following rotation cursory, on rotate cursory and following rotation is cursory that the constraint portions that can contact with cursory upper and lower arranged respectively; Rotate in the utilization that cursory and following rotation is cursory to limit cursory come-up and gravity decline respectively; It is cursory to have only the interior water level of water tank to rise to rotation, make rotate cursory float be rotated away from cursory and the constraint that lifts restrictions, perhaps the drawdown in the water tank makes down the cursory decline of rotation be rotated away from cursory and the constraint that lifts restrictions to rotation is cursory down, cursory just can floating upward quickly or descend fast and instantaneous longspan ground opens and closes valve, the state of little water droplet flow can not appear in valve.Constraint portions can be point of contact or surface of contact or bayonet socket.Such utensil is communicated with between tap water user pipeline water meter and water tap, and the water that flows out from water tap will pass through this utensil earlier.After tap water entered this utensil, the water level in the water tank rises will make cursory rising, but is subjected to rotating the contiguity constraint of cursory hang (state of non-floating), temporarily can not rise, and valve is keeping big unlatching can not cut out, and guarantees the normal water of water tap.But, when water tap small flow water clock and not during water, the cistern water level of this utensil will continue to rise fast, make rotation cursory also floating, the cursory floating rotation of last rotation, its contiguity constraint is partly left or depart from cursory and remove cursory top restrained condition, under the floating function that stores cursory fast rise and moment big stroke ground cut-off valve.After the cursory rising, cursory constraint portions and the cursory formation restrained condition of following rotation.If water tap continues the small flow water clock, the water from water tank to the water tap water clock is the water through metering.Along with the continuation of small flow water clock, the water level in the water tank of this utensil progressively descends, and is cursory also with will descending, but the contiguity constraint that is subjected to down rotating cursory floating condition can not descend, and the valve of water intake also just temporarily can not be opened; When the water level in the water tank continues to drop to position below cursory, the following cursory loss of buoyance of rotation and rotating under the effect of its gravity makes down and rotates cursory constraint portions and leave or depart from cursory and the state cursory bottom of constraint relief.Under cursory action of gravity, descend fast, open valve instantaneous big stroke, make current just reach big flow once, guarantee that the water that enters the interior water of this utensil water tank and flow out water tap is the water through metering.Cursory formation contiguity constraint is rotated in cursory and sagging going up after next time.

Being connected of cursory and valve rod can be being connected of valve rod of cursory and stop valve or gate valve, directly drives valve rod and spool or valve plate and moves and open and close; Also can be that cursory handler with ball valve or stopcock valve rod is connected, directly drive valve rod and valve core rotation and open and close.Cursoryly connect by lever with being connected preferably of valve rod, can utilize the mode of lever force-saving like this, just can actuate valve stem and spool (or valve plate) action with less buoyancy, can increase the reliability that valve closing is opened, and significantly reduce the volume of cursory and casing.Generally determined the size of casing by cursory size, cabinet wall just can guarantee the cursory stationarity that moves up and down, in order to increase the cursory reliability that moves up and down stationarity and position, have slideway or chute or guide rod in the casing and between cursory, with the cursory course bearing that moves up and down that leads.So-called constraint portions be exactly go up rotate cursory, rotate cursory and cursory the contact down and limit cursory contact segment, can be point of contact or surface of contact or bayonet socket.Last rotation is cursory when sagging, rotate down cursory when floating with can the cursory part that contacts be exactly point of contact or surface of contact, be go up rotate cursory, rotate cursory constituent element down.Last rotate cursory, rotate cursory can the utilization down and rotate cursory gravity, rotate cursory buoyancy by point of contact or surface of contact formation drag effect down cursory constraint.Bayonet socket can be go up to rotate cursory, rotate a cursory part down, it is cursory and can be stuck in cursory bayonet socket just will to have angled range constraint; Can utilize cursory constraint and to rotate cursory gravity, rotate cursory buoyancy down, also can utilize the anti-restraining force of bayonet socket to point to cardan axle and utilize that rotation is cursory, to rotate cursory constraint down cursory; Otherwise bayonet socket also can be a cursory part, cursory bayonet socket up and down can be stuck in rotate cursory, rotate cursoryly down, bayonet socket and last rotation be cursory, rotate cursory active force down can be the sensing cardan axle.Last rotate cursory, down rotate cursory constraint relief state can be go up rotate cursory, down rotate the point of contact of cursory constraint portions or surface of contact or bayonet socket along with being rotated away from cursory restrained place constraint relief.Rotate down cursory, on to rotate cursory and contacting of cursory upper and lower can also be in cursory feeler lever contact by hinge joint.Feeler lever be hinge joint at cursory connecting rod, that the outstanding end of connecting rod touches is cursory in last rotations, it is cursory to rotate down, the active force of contravention point to upward rotation cursory, rotate cursory cardan axle down.Last rotate cursory, down rotate cursory constraint portions along with rotation, make the contravention active force of feeler lever depart from the cardan axle direction, skid off constraint portions and remove feeler lever and cursory constraint.

The present invention compared with the prior art, have valve opening in the utensil close all be moment big stroke finish, the tap water that assurance enters casing all is under gageable big flow status, and all be through metering from the water that water tap flows out, guarantee the tap water accurate measurement that the user uses, prevented the non-metering phenomenon of little water droplet effectively.

Description of drawings: accompanying drawing has represented that a kind of home-use tap water of the present invention prevents the non-metering utensil structure schematic representation of water clock, further specifies the present invention below in conjunction with the example of accompanying drawing.

Embodiment: this home-use tap water prevents the non-metering utensil of water clock, has to bring mouthful casing of 1 outlet 21 into, and casing is made of lower box 12 and loam cake 13.The pipe joint of import export is fixing by nut 2.Import in casing has stop valve, the valve rod 4 of stop valve is connected with cursory 10, it is characterized in that: cursory above and below have respectively with casing indirectly hinge joint 15 go up rotate cursory 14 and rotate down cursory 20, on rotate cursory and the cursory constraint portions 16,19 that can contact that has respectively of rotation down with cursory upper and lower.The last bayonet socket 16 that rotates cursory constraint portions for expenditure.Rotating cursory 20 constraint portions down is a surface of contact, and surface of contact is by linking 18 in 17 contacts of cursory feeler lever with contacting of cursory bottom.Cursory is to connect by lever 6 with being connected of valve rod, and the head of stirring of lever one end inserts stirring in the groove of valve rod upper end, and the other end of lever is connected with cursory fixing rod 9 and resilient clip 8.Have sliding guide 7 in the casing and between cursory, cursory middle part has the guide hole that matches with sliding guide.Lower end of the guide rod and valve body are fixed, and the connecting plate of upper end and casing is fixed.Casing has upright to connecting plate 11, on rotate cursory and following rotate cursory respectively by with upright cardan axle 15,5 to connecting plate, link, formation is connected with the hinge joint of casing.

This utensil is communicated with between tap water domestic consumer pipeline water meter and water tap, and the water that flows out from water tap will pass through this utensil earlier.The state that accompanying drawing is represented is spool 3 closed conditions of this utensil, if water tap small flow water clock, the water from water tank to the water tap water clock is the water through metering.Continuation along with the leakage of subtotal minim, water level in the water tank of this utensil progressively descends, last rotation is cursory will to clockwise rotate, cursory 10 also will and then descend, but following rotation is cursory also below water level, the constraint that cursory and feeler lever is subjected to down the cursory constraint portions surface of contact 19 of rotation can not descend, and the spool 3 of water intake also just temporarily can not be opened; When the water level in the water tank continues to drop to the position of rotating below cursory, rotate cursory loss of buoyance down and under the effect of its gravity, clockwise rotate, rotate cursory surface of contact down and tilt to make feeler lever contact action power depart from cardan axle, the feeler lever front end slips over point of contact and makes cursory bottom constraint relief.Cursoryly descend fast under action of gravity, stir valve rod and spool and valve is opened on instantaneous big stroke ground by lever, make current just reach big flow once, the water that guarantees to enter the water in this utensil water tank and flow out water tap is the water through measuring.In cursory quick decline, on rotate and cursoryly also under action of gravity, continue to clockwise rotate, the bayonet socket 16 of its constraint portions is moved snaps into cursory last angle.After tap water entered this utensil, the water level in the water tank rose and will make cursory 10 to rise, but is subjected to rotating the constraint of cursory 14 constraint portions bayonet sockets 16, temporarily can not rise, and valve is keeping big unlatching can not cut out, and guarantees the normal water of water tap.But when water tap subtotal minim leaks and during water, the cistern water level of this utensil will not continue to rise fast.After water level rises to and rotates cursory position, make rotation cursory also floating.The cursory floating rotation of last rotation, make its bayonet socket leave cursory above and constraint relief.Cursory fast rise and stir valve rod under the floating function that stores by lever, moment big stroke ground close spool, cursory feeler lever gravity sag return contacts and is rotating cursory constraint portions contact plane down, has got back to the valve closing state that accompanying drawing is represented.At this moment the water in the casing all is through the tap water of large capacity meter amount, has guaranteed that the water tap rill is dripped does not influence the effect of metering yet.

Claims (6)

1, a kind of non-metering utensil of water clock that prevents, this prevents that the non-metering utensil of water clock is located between water meter and the water tap, this prevents that the non-metering utensil of water clock from having a casing of bringing the mouth outlet into, import in casing has valve, valve rod is connected with cursory, it is characterized in that: cursory above and below has respectively that to rotate cursory and following rotation cursory with going up of the indirect link hinge joint of the direct link of casing or casing or casing, on rotate cursory and the cursory constraint portions that can contact that has respectively of following rotation with cursory upper and lower.

2, as the said non-metering utensil of water clock that prevents of claim 1, it is characterized in that: constraint portions is point of contact or surface of contact or bayonet socket.

3, as the said non-metering utensil of water clock that prevents of claim 1, it is characterized in that: cursory is to connect by lever with being connected of valve rod.

4, as the said non-metering utensil of water clock that prevents of claim 1, it is characterized in that: have slideway or chute or guide rod in the casing and between cursory.

5, as the said non-metering utensil of water clock that prevents of claim 1, it is characterized in that: have guide rod in the casing and between cursory, cursory have guide hole or a guide groove that matches with guide rod.

6, as claim 1 or 2 or 3 or the 4 or 5 said non-metering utensils of water clock that prevent, it is characterized in that: on to rotate cursory and rotate down cursory be in cursory feeler lever contact by hinge joint with contacting of cursory upper and lower constraint respectively.