CN1079530C - Water supplying unit for automatic ice making apparatus - Google Patents

Abstract

The present invention provides a structure which feeds a predetermined amount of the water to be purified in a short time from a water storage tank to a water purifying filter without making its mesh wide, in a water feeding structure wherein, at the time of water feed to an ice making dish, the water which is purified through the water purifying filter and is sent out from the water storage tank is temporarily stored in a water reservoir of a predetermined capacity and the water is thereafter fed therefrom to an ice making container. In a purifying case 58, water is stored in an amount hot less than a predetermined amount of the water to be fed in a water reservoir 36 of a predetermined capacity. In this condition, a water outlet valve mechanism 38 closes a water outlet opening 37 and a water feed valve mechanism 54 opens a water feed opening 53. Then, the purified water stored in the purifying case 58 is allowed to flow out from the water feed opening 53 and a predetermined amount of the water is held in the water reservoir 36. Afterwards, the water feed opening 53 is closed, the water outlet opening 37 is opened and the water is thus fed from the water reservoir 36 through a tube 28 to an ice making tray 22.

Description

The waterworks of automatic ice-making plant

The present invention relates to a kind of automatic ice-making plant feedwater water device from a certain amount of water to ice maker container that supply with.

The structure of having represented this waterworks of current refrigerator as Figure 15.These waterworks are fed to the ice-making disc that is used for ice maker container 5 that is located in the ice-making compartment 4 by the water that feed pump 3 will be stored in the plastic water container 2 in the refrigerating chamber 1, and water storage tank 6 is installed in the top of water container 2 removably.This water storage tank 6 supplies water to water container 2 in following mode from the feedwater oral area 8 with water-supply valve 7, that is, make the water level in the water container 2 often block the lower ending opening of feedwater oral area 8, and maintain on certain water level.

Dividing plate 10 by band limbers 9 in the above-mentioned water container 2 is divided into be filled with water chamber and quantitative hydroecium, and the feedwater oral area of water storage tank 6 is inserted in the chamber 11 that is filled with water, and the suction oral area 3a of feed pump 3 is inserted in the gauge water fixed 12.Feed pump 3 one startings, this feed pump 3 are the water in the quantitative hydroecium 12 of ice maker container 5 supplies just.At this moment, quantitatively the water level in the hydroecium 12 descends gradually, and be filled with water and produce water-head between the chamber 11, because the aperture of the limbers 9 of connection two Room 11/12 is very little, when pump 3 supplies water, from be filled with water the chamber by limbers 9 flow in the quantitative hydroecium 12 water seldom, so, can only in ice-making disc 5, supply with a certain amount of water that is stored in the quantitative hydroecium 12.

In the waterworks of this structure, the preceding topic that realizes quantitative water supply be by feed pump 3 than feedwater process in, restricted passage limbers 9 flows into the water yields in the quantitative hydroecium 12 for few from the chamber 11 that is filled with water.But, diameter by water hole 9 is because of the reasons such as forming errors of water container 2, often can not be in full accord, when the diameter of limbers 9 during greater than design load, in the process that supplies water by feed pump 3, the water yield that flows out quantitative hydroecium from the chamber 11 of being filled with water is inaccurate, and the problem that the confluent of ice-making disc 5 does not wait every batch of goods appears flowing in the result.And, because in water container 2 storage of water always, inner surface scaling or phenomenon such as mouldy easily take place, sanitary condition is bad.

Waterworks in recent years are made of the quantitative cistern of taking water valve mechanism out of, the water storage tank that brings water valve mechanism that is configured in this quantitative cistern top and the valve operating system of switch discharge mechanism and water-supply valve mechanism.Utilize valve operating system to close outlet valve mechanism and open water-supply valve mechanism, just can supply with a certain amount of water to quantitative cistern from water storage tank, afterwards, close water-supply valve mechanism opening outlet valve mechanism, the quantitative water that is stored in the quantitative cistern is supplied with ice maker container, utilize this mode, can think that quantitative cistern often becomes the state that is ranked.

Can consider in water storage tank the water purifier of a band of configuration water-purifying filter on the other hand, utilize remove the water of this water purifier in water storage tank iron rust and/chlorine etc., supply with water to quantitative cistern again.

For making quantitative cistern often is that the emptying attitude is when ice-making disc feeds water, big water storage tank is supplied with quantitative water to quantitative cistern, afterwards, from the structure of quantitative cistern, must in the short period of opening water-supply valve mechanism with valve operating system, supply with a certain amount of water to quantitative cistern from water storage tank to ice maker container supply water.And the water-purifying filter of water purifier is made of in no textile-like mode fibrous activated carbon, and in order to remove iron rust contained in anhydrating and chlorine etc., the order of filter is made superfinely, to such an extent as to water flowing is extremely low.Especially, be mounted in the interior relation of refrigerating chamber of refrigerator if consider water storage tank, the water temperature in the water storage tank is descended, its viscosity increases, then the more difficult filter that passes through of water.Therefore, opening by valve operating system in the relatively shorter time of water-supply valve mechanism, can not be by filter from the water of quantitative cistern to ice maker container supply aequum, the water yield that often flows to ice maker container will be not enough.For fear of this phenomenon occurring, the order that can fall filter makes thicker, if but like this, just sorption iron rust and chlorine have fully just lost the purpose that water purifier is set.

The present invention is based on the problems referred to above and proposes.The object of the present invention is to provide a kind of waterworks of automatic ice-making plant, when ice maker container feeds water, to flow out through water that water purifier purifies, from water storage tank earlier and be stored in the quantitative cistern, afterwards, from the automatic ice-making plant of quantitative cistern to ice maker container water supply, even the order of water purifier is not thick, also can be at short notice from water storage tank to quantitative cistern supply with ice maker container will with a certain amount of purifying waste water.

In order to finish above-mentioned purpose, the waterworks of automatic ice-making plant of the present invention have quantitative cistern, outlet valve mechanism, water storage tank, water-supply valve mechanism, valve operating system and water purifier; Wherein quantitative cistern is positioned at the top of ice maker container, delivery port is arranged at its bottom, the switching of the above-mentioned delivery port of this quantitative cistern of outlet valve mechanism controls, water storage tank be configured in above-mentioned quantitative cistern top, supply with a certain amount of water from the admission port of bottom to above-mentioned quantitative cistern, water-supply valve mechanism is used for the above-mentioned admission port of this water storage tank of switch, the valve rod of valve operating system by rising water-supply valve mechanism and the valve rod of above-mentioned outlet valve mechanism, close above-mentioned delivery port and open above-mentioned admission port, supply with a certain amount of water to above-mentioned quantitative cistern from water storage tank.Afterwards, the valve rod of valve rod by reducing water-supply valve mechanism and above-mentioned outlet valve mechanism is closed above-mentioned admission port and is opened above-mentioned delivery port, a certain amount of water warp that is stored in the above-mentioned quantitative cistern is supplied with above-mentioned ice maker container to the water route, the purifying box of water purifier is not in above-mentioned water storage tank and cover above-mentioned admission port, there is water-purifying filter at the current hand-hole place of the periphery of purifying box, the upright at an upper portion thereof simultaneously gas outlet of establishing, the water of the inflow purifying box inside by water-purifying filter flows out from above-mentioned admission port, simultaneously, along with flow out water from the admission port, the air that to invade purifying box inside from the outside is discharged to top in the above-mentioned water storage tank from gas outlet, above-mentioned water purifier the mode in the above-mentioned water storage tank of being configured in is to make gas outlet be positioned at the valve rod top of above-mentioned water-supply valve mechanism, simultaneously, the internal volume of purifying box should greater than at every turn from above-mentioned water storage tank more than a certain amount of water capacity that above-mentioned quantitative cistern is supplied with.

At this moment, recess is made at the position of the configuration water purifier in the inner bottom surface of water storage tank, made the water of purifying box flow into the below also lower, position than the inner bottom surface of water storage tank.

When closing outlet valve mechanism, when opening water-supply valve mechanism, the water in the water storage tank flows into quantitative cistern from the admission port.At this moment, because the internal volume of purifying box is confirmed as bigger more at every turn than the confluent of supplying with to quantitative cistern, so the water yield that has just purified through water-purifying filter of storing in this purifying box should be greater than the water yield of supplying with to quantitative cistern, these water will be supplied to quantitative cistern.

When the water in the purifying box when the admission port of water storage tank flows into quantitative cistern, thereupon, extraneous air is invaded in the purifying box from the admission port.In case these air trappings are in purifying box, will hinder continuing to flow into of water to invade with the continuation of air, because the upright leakage hole that is provided with on the top of purifying box, the air of invading does not pass through polishing filter, but in successfully bleeding water storage tank from this leakage hole, water is also successfully supplied with quantitative cistern.

In addition, the water yield of the storage in the water storage tank tails off gradually, in order to have guaranteed that a certain amount of water flows in the purifying box, purifying box must be located on the alap position, because the leakage hole of purifying box is positioned at the top of the valve rod of water-supply valve mechanism, so, even purifying box is located on the lower position, when valve rod by on when pushing away, this valve rod just inserts in the leakage hole, this action can not be subjected to the obstruction of purifying box.

At this moment, recess is made at the position of the configuration water purifier in the inner bottom surface of water storage tank, because of the entry portion of purifying box is positioned at than the inner bottom surface of the water storage tank position at the end more, so, except become unprecedented last up to water storage tank, in purifying box, can store the water yield bigger than the ormal weight that should supply with to quantitative cistern.

Fig. 1 is the longitudinal sectional drawing of the major part of first embodiment of the invention.

Fig. 2 is suitable with Fig. 1 state diagram of being fed water to quantitative cistern by water storing tank of expression.

Fig. 3 is suitable with Fig. 1 state diagram of being fed water to ice-making disc by quantitative cistern of expression.

Fig. 4 is the exploded view of outlet valve mechanism.

Fig. 5 is the oblique view of upper and lower valve rod.

Fig. 6 is the plane of same valve rod.

Fig. 7 is the sectional drawing of the last lower valve column after the moulding of same valve rod.

Fig. 8 is the oblique view of clarifier.

Fig. 9 is the main composition figure of cam mechanism.

Figure 10 is the time diagram that the switching of move up and down position and the outlet valve mechanism and the water-supply valve mechanism of operating axis concerns.

Figure 11 is vertical sectional drawing of the ice maker of refrigerator.

Figure 12 is the vertical sectional drawing of the part of the second embodiment of the present invention.

Figure 13 is the vertical sectional drawing of the part of the third embodiment of the present invention.

Figure 14 is the vertical sectional drawing of the part of the fourth embodiment of the present invention.

Figure 15 is an exemplary plot suitable with Figure 11 of the waterworks in the prior art.

Below, illustrate that referring to figs. 1 through Figure 11 the present invention is applicable to first embodiment on the automatic ice-making plant of refrigerator.

As shown in figure 11, be provided with the ice-making disc 22 as plastic ice maker container in the ice-making compartment 21 of refrigerator, the cold air that the water in this ice-making disc 22 is fed in the ice-making compartment 21 is cooled to ice.Establish plastics plummer 24 in the refrigerating chamber 23 on above-mentioned ice-making compartment 21, circular water container water receiving vessel 25 is integrally formed with this plummer 24.The part of the front side of water container water receiving vessel 25 is forwards extended.

Water receiving vessel 25 is to accept a certain amount of water measure and with the container of water the supply system ice pan 22, as shown in Figure 1, be formed with flow export 26 on the bottom at the position of extending to the front side.The pipe 28 that connects the dividing plate 27 of ice-making compartment 21 and refrigerating chamber 23 is communicated with flow export 26, and the water that water receiving vessel 25 receives flows in the ice-making disc 22 by pipe 28.Therefore, water receiving vessel 25 and manage 28 and formed a certain amount of water that an acceptance measures and given water route 29 with water the supply system ice pan 22.In Figure 11,30 are one weakens the flow of water buffer unit that sputters from ice-making disc 22 from the potential energy of managing 28 outflow water and anti-sealing, and 26a is the heater that build-ups ice attached to the residual globule on the inner surface of flow export 26, pipe 28 for preventing.

As shown in Figure 1, on the bottom center of water receiving vessel 25, be formed with peristome 31, around this peristome 316, dash forward with being integral and established outstanding upward cylindrical portion 32.The container-like seal member 33 of the elastomeric material of peristome 31 is sealed in configuration on the inboard of cylindrical portion 32, sealing parts 33 bedding bag shape nuts 34 are fixed on the ring-type table top 32a that forms on the inboard of cylindrical portion 32 through encircling 35 roof pressures, and bag shape nut 34 lemons are on the external screw thread 32b on cylindrical portion 32 peripheries.

The circular quantitatively cistern 36 that plastics are made is contained in the inside of described water receiving vessel 25.This quantitative cistern 36 is detachable with respect to water receiving vessel 25, is holding under the state, makes the annular projection 36a of periphery, top be subjected to the step surface 25b supporting of the downside wide diameter portion 25a in the upper shed portion of water receiving vessel 25.

Bottom center at above-mentioned quantitative cistern 36 forms a delivery port 37, comes switch delivery port 37 by outlet valve switching mechanism 38.Outlet valve mechanism 38 mainly is made of valve rod 39, valve body 40.Valve rod 39 is divided into valve rod 41 and lower valve column 42, and a larger diameter flange 41a is arranged on the bottom of last valve rod 41, and lower valve column 42 also has same larger diameter flange 42a in the bottom.Valve body 40 is stairstepping cylinders, and a columnar sleeve 40a under shed is arranged in the bottom.

The central bearing 36c that above-mentioned upward valve rod 41 is inserted in a plurality of gusset 36b on the inner bottom surface of erectly being located at quantitative cistern 36 is interior and can stop it to be moved further by back-up ring 43 along moving up and down.Between the flange 41a of bearing 36c and last valve rod 41, establish first compression helical spring 44 that presses valve rod 41 downwards.

Lower valve column 42 is inserted in the centre of the top disk 40b of valve body 40, and can be along moving up and down, stop it to be moved further by back-up ring 45, establish the second compression spring 46 between the flange 42a of disk 40b on the valve body 40 and lower valve column 42, this second compression spring 46 makes valve body 40 upwards move with respect to lower valve column 42.On the upper shell 40c of valve body 40, disposed container-like seal 47 for the elastomeric material system of the upper opening of sealing this cylindrical shell 40c, sealing part 47 is fixed on the upper end of cylindrical shell 40c by encircling 49 pushings by bag shape nut 48, and this nut 48 is screwed on the external screw thread on the periphery of cylindrical shell 40.

Combination is to be made of the unit valve body 40 that separates, lower valve column 42, the second compression spring 46 and seal 47 and the last valve rod 41 and the first compression spring 44 that are installed on the quantitative cistern 36 like this, as shown in Figure 4, can separate with quantitative cistern 36.The following side unit of this outlet valve mechanism 38 is chimeric to the outside of the above-mentioned bag shape nut 34 of the protuberance in water route 29 with conduct by the sleeve 40a that makes valve body 40, is bearing on water receiving vessel 25 sides also can move up and down.

Yet, after being installed in the following side unit of outlet valve mechanism 38 in the water receiving vessel 25, quantitatively cistern 36 just is contained in this water receiving vessel 25, as shown in Figure 1, under this holds state, the top of valve body 40 is inserted in the inboard of delivery port 37, side and go up valve rod 41 and lower valve column 42 and clip seal 47 ground and hold out against mutually, and the first compression spring 44 becomes the dog attitude that pushes valve rod 42 downwards.At this moment, chimeric because of the recess 41b on the bottom that is darted at projection 47a on the seal 47 and last valve rod 41, last valve rod and lower valve column are adjusted to coaxial position.Therefore, valve body 40 second the compression spring 46 effect under and be moved upward, contact with annular seal ring 50 around being enclosed within delivery port 37 from the below and close this delivery port 37, in addition, such as described later, in case under the elastic force effect of the first compression spring 44, push away valve body 40 downwards, so, valve body 40 moves and disengaging sealing ring 50 downwards from annular seal ring 50, thereby, open delivery port 37.

The position that contacts with annular seal ring 50 on the valve body 40 forms to the taper inclined plane 40d that outer circumferential side has a down dip, and therefore, the inclined plane 40d of valve body 40 is line with the whole circumference of annular seal ring 50 and contacts.In order to guarantee that more reliably inclined plane 40d contacts with the line of annular seal 50, the bottom of annular seal ring 50 is made circular-arc.

Yet above-mentioned upward valve rod 41 and lower valve column 42 are that plastics are made, and as shown in Figure 5, it is the slightly circular rod that forms plane 41b, 42b in both sides.The moulding that should go up lower valve column 41,42 is that a plurality of bodies of cutting apart are formed, and the interface of mould is set the place, centre position that is positioned at plane 41b, 42b for.Therefore, when molded and shaped contraposition, even Splittable has dislocation slightly, as shown in Figure 7, because two valve rods 41,42 are the border with the centre of plane 41b, 42b up and down, two and half sheet part mutual dislocation, the dislocation size is littler than the situation that does not have plane 41b, 42b, and friction can not appear in first, second compression spring 44,46 chimeric with its outside when flexible.In addition, even between the mould involutory surface of Splittable tension force takes place, because the occurrence positions of tension force is on plane 41b, 42b, first, second compression spring 44,46 can not be subjected to the obstruction of tension force when stretching.

At the flange 41a of two valve rods 41,42 up and down, prominent a pair of projection 41c, the 42c of having established above the 42a, this distance to the projection space equates with the external diameter of first, second compression spring 44,46, differing prominent a pair of projection 41d, the 42d of having established on 90 positions of spending with these projections 41c, 42c, this distance to the projection space equates with the internal diameter of first, second compression spring 44,466.Shown in Fig. 6 chain-dotted line like that, make bottom projection 41c, 42c inboard of first, second compression spring 44,46 and be positioned at projection 41d, 42d the outside be placed on flange 41a, the 42a, like this, first, second compression spring 44,46 just off normal can not occur, and making up and down, each valve rod 41,42 keeps concentric shape.

On the other hand, above quantitative cistern 36 water storage tank 51 is set, water storage tank 51 is to be installed in dismantledly on the mounting table 24.On the bottom surface of this water storage tank 51, down be equipped with cylindrical portion 51a, on the periphery of this cylindrical portion 51a, be provided with external screw thread 51b.There is the dish 52 of internal thread 52a to be screwed on the cylindrical portion 51a on the inner peripheral surface.Be formed with admission port 53 in the centre of this dish 52, stretch very short major diameter ring portion 52b down and below dish 52, be formed with.

Make admission port 53 Push And Releases by water-supply valve mechanism 54.This water-supply valve mechanism 54 is made of valve rod 55 and valve body 56, and wherein, valve rod 55 can be bearing on the intermediate bearing 52d that is loaded on the bearing support 52c on the cover 52 up or down, and valve body 56 is installed on the bottom of valve rod 55.Therefore, valve rod 55 is being pressed downwards by the compression spring 57 as elastic device that is located between valve body 56 and the bearing 52d, usually, closes admission port 53.Water storage tank 51 is except being communicated with admission port 53, with outside the outside is connected, is to be sealed just always.

The length long enough that the 51a of tube portion of above-mentioned water storage tank 51 is outstanding downwards, and, for its as cleaning water storage tank 51 inlet of putting into hand when inner, diameter makes more much bigger than the diameter of above-mentioned quantitative cistern 36.Therefore, also the top diameter than quantitative cistern 36 is big for cover 52 diameter, and the upper end of its upside wide diameter portion 5C that is positioned at water receiving vessel 25 and quantitative cistern 36 only has slightly that the compartment of terrain faces toward, and block this quantitative cistern 36 above.The internal diameter that the major diameter ring 52b of admission port 53 sets for than quantitative cistern 36 is inserted in this quantitative cistern 36 smallerly, and has very little interval with the inner peripheral surface of quantitative cistern 36.The valve rod 55 of water-supply valve mechanism 54 is positioned on the valve rod 39 same axis with outlet valve mechanism 38.

In above-mentioned water storage tank 51, placing water purifier C.As shown in Figure 8, the purification chamber 58 of this water purifier C is the offset flat shape cylindrical vessel, its lower aperture.On around the purification chamber 58, form the water inlet 58a that supplies water and flow into, detachably adorning the cylindrical shape water-purifying filter 59 of using fibrous activated carbon to constitute on the inboard on every side with the non-woven shape at this.Standing up the blast pipe 58b that constitutes by taper roundlet tube on the top that purifies chamber 58.

The interior top cylindric installation portion 52e that above-mentioned purification chamber 58 makes its lower end be entrenched in above-mentioned cover 52 goes up and can pull down, and simultaneously, covers feed feeder 53.At this moment, by the long enough of outstanding length setting downwards of the tube 51a of portion, the configuration position in purification chamber 58 from the inner bottom surface of water storage tank 51 to being issued to very dark place.Therefore, be configured in the bottom surface of subsidence part, promptly cover purification chamber 58 on 52 and be in the partly i.e. inboard of the 51a of tube portion and being admitted of this subsidence, water inlet 58a is in than the inner bottom surface of water storage tank 51 position below more not.And the diameter in purification chamber 58 that is placed on the inboard of the 51a of portion is bigger, and that part of internal volume that is lower than the inner bottom surface of water storage tank 51 is greater than at every turn the volume of the water yield that must supply with to quantitative cistern 36.

Among Figure 11,60 are one utilizes lever 61 to detect water storage tank whether to be placed on switch on the plummer.62 is levers of the storage ice amount of a storage refrigerator (not shown) of detect storing the made ice of ice-making disc 22.

The valve operating system 63 of switch outlet valve mechanism 38 and water-supply valve mechanism 54 is installed on the aforementioned barriers 27.This valve operating system 63 by can be bearing in up or down on the shell 64 as the operating axis 65 of operating portion and motor 66 shown in Figure 9, and the rotational transform of this motor become the converting means that moves up and down of operating axis 65, for example, cam mechanism 67 is formed.This cam mechanism 67 constitutes on the camshaft 69 of reducing gear 68 rotating drive by flange 70 is installed in by motor 66, and the top of the cam surface of lobe plate 70 is concavo-convex.The lower end of operating axis 65 contacts with the top of this lobe plate 70, and in one week of rotation of lobe plate 70, operating axis 65 is done once reciprocal.

As shown in Figure 1, aforesaid operations axle 65 is outstanding upward from shell 64, is positioned at the bottom opening 31 of above-mentioned water receiving vessel 25, contacts through the lower valve column 42 of seal member 33 with above-mentioned outlet valve mechanism 38.Operating axis 65 often is stopped at the intermediate altitude place of the scope of moving up and down.At this moment, two valve rods 41,42 up and down of outlet valve mechanism 38 are shifted onto on a certain amount of position from the lower position by operating axis 65, and the upper end of last valve rod 41 does not contact with the valve rod 55 of water-supply valve mechanism 54.Under this dog attitude, the valve body 40 of outlet valve mechanism 38 is pressed in the O-ring seal 50 under the elastic force effect of the second compression spring 46, thereby closed delivery port 37, the valve body 56 of water-supply valve mechanism 54 is pressed down and closes admission port 53 in the elastic force effect of compression spring 57.Because the last valve rod 41 of outlet valve mechanism 38 and lower valve column 42 move up and down simultaneously, so, below, except that must being specifically noted, only valve rod 39 is described.

Rotate a circumferential ice-making disc 22 by lobe plate shown in Figure 9 70 (camshaft 69) and supply water, made operating axis 65 do a reciprocating motion in one week by these lobe plate 70 rotations and open and close outlet valve mechanism 38 and water-supply valve mechanism 54.At this moment, as mentioned above, operating axis 65 is parked in the centre position of the scope of moving up and down when flat, a reciprocating motion of operating axis 65 is from middle position, operating axis 65 is along with the rotation of lobe plate 70 at first rises to upper limit position (first stroke) from middle position, then, drop to lower position (second stroke), turn back to the centre position then from the lower position and stop (third trip) from upper limit position.In order to do above-mentioned first the action on the operating axis 65 to third trip, magnet 71 is installed on lobe plate 70, on housing 64, be provided with lead-in wire switch 72, by the ON Action of not shown control device, detect lobe plate 70 and rotate the power supply that just cuts off motor 66 week by lead-in wire switch 72.

The following describes the effect of said structure, at first, the switching relation of up and down mobile and the outlet valve mechanism 38 and the water-supply valve mechanism 54 of aforesaid operations axle 65 is described with reference to Figure 10, in Figure 10, represent the centre position of operating axis 65 to represent upper limit position with PC, represent the lower position with PL with PU.

At first, operating axis 65 is when the centre position, and the valve body 40 of outlet valve mechanism 38 and water-supply valve mechanism 54 and valve body 56 are closed delivery port 37 and admission port 53 respectively.Before operation valve 65 began to rise to upper limit position PU from middle position PC, the valve rod 39 of outlet valve mechanism 38 was upwards pressed by operating axis 65.At this moment, because valve rod 39 compresses first and second compression helical springs 44,46 on one side, release the valve body 40 of water valve mechanism 38 on one side, because the elastic force of the second compression spring 46, valve body 40 is pressed on the sealing ring 50, just keep the closed condition of delivery port 37, and valve rod 39 rises slidably with respect to the valve body 40 that is in halted state.Therefore particularly because valve body 40 along with second spring 46 is compressed in the rising of valve rod 39 subsequently, then, is pressed on the annular seal ring 50, the sealing of valve body 40 relative delivery ports 37 is tighter.And because the valve rod 39 of outlet valve mechanism 38 is when being forced into institute's take the altitude, as shown in Figure 2, the elastic force that the valve rod 55 of valve rod 39 and water-supply valve mechanism 54 heads on compression spring 57 contacts and upwards pushes away valve rod 55, so valve body 56 is opened admission port 53.

Because before this operating axis 65 rose to upper limit position from middle position PC, the valve rod 55 of water-supply valve mechanism 54 was upwards pressed.At this moment, purifying chamber 58 be flat, and its aspect ratio is lower and since purify the discharge air portion 58b in chamber 58 be located at valve rod 55 directly over the position, along with its upper part of rising of this valve rod 55 just extend among the discharge air portion 58b in purification chamber 58.Therefore, make it highly lower in order to be contained in the portion 51, but the rising that purifies the 58 pairs of valve rods 55 in chamber do not hinder, so can not produce obstacle to the opening action of water-supply valve mechanism 54 even purify chamber 58.

When operating axis 65 drops to second stroke of lower position PL from upper limit position PU, the valve rod 39 of outlet valve mechanism 38 and water-supply valve mechanism 54 and valve rod 55 are owing to the elastic force of compression spring 44,46 and 57 is depressed, and at first the valve body 56 of water-supply valve mechanism 54 is closed admission port 53.At this moment, because the valve body 40 of outlet valve mechanism 38 does not limit the decline of valve rod 39, under second compression spring 46 effect, upwards headed on and pushed down annular seal ring 50, so delivery port 37 still maintains closed condition.After this, the valve rod 39 of outlet valve mechanism 38 leaves the valve rod 55 of water-supply valve mechanism 54, and this valve rod 39 is when further descending, because the locating snap ring 45 of lower valve column 42 contacts with valve rod 40, second elastic force that compresses spring 46 is just born by locating snap ring 45.So, as shown in Figure 3, because by the elastic force of the first compression spring 44 valve rod 39 is just moved downwards with valve body 40, valve body 40 is also moved downwards by the elastic force of the first compression spring 44, just break away to the below of ring dog sealing ring 50, opened delivery port 37.

After this, operating axis 65 arrives lower position PL, and when the third trip that carries out rising to centre position PC from this lower position PL mobile, the valve rod 39 limits compression first compression spring 44 limits of outlet valve mechanism 38 are to rising.Operation valve 65 so with valve rod 39 rise to valve body 40 is contacted during fixed ascending amount with annular seal ring 50, locating snap ring 45 is done moving of some distances upward from valve body 40, just contact when closing delivery port 37 with annular seal ring 50 owing to the elastic force of the second compression spring 46 shown in Fig. 1, operating axis 65 returns its original centre position with regard to stop motion.

Be that the on-off action with move up and down the outlet valve mechanism 38 and the water-supply valve mechanism 54 of operating axis 65 is described above.

Yet after ice-making disc 22 was finished ice making, ice-making disc 22 spun upside down, and ice falls and is stored in as after in the storage refrigerator not shown in the figures, when ice-making disc 22 is got back to original position, and should be to motor 66 energisings of ice-making disc 22 feedwater.So at first as shown in Figure 2, because rising to upper limit position PU from middle position PC, operating axis 65 rises (first stroke) before, the valve body 40 of outlet valve mechanism 38 is the states of having closed the delivery port 37 of quantitative cistern 36, and water-supply valve mechanism 54 opens the admission port 53 of water storing tank 51.Therefore, the water in the water storing tank 51 flows in the quantitative cistern 36 by admission port 53, and remains in this quantitative cistern 36.And along with water 53 flows out from the admission port, quantitatively the water levels in the cistern 36 rise, because this water surface clogs in the admission port lower ending opening of major diameter ring portion 52b of the bottom of 53 part, water stops from the admission port 53 and flows out.At this moment, generally being supported on the certain height position in order to make major diameter ring portion 52b, quantitatively generally also having guaranteed certain water level in the cistern 36, in other words is exactly to store a certain amount of water.

So, from water storing tank 51 during to the 36 feedwater beginnings of quantitative cistern, flow into the water that purifies the chambeies 58 from water inlet 58a by water-purifying filter 59, just the purification water yield of having removed behind iron rust and the chlorine by filter 59 will be more than each water yield that flows in the quantitative cistern 36.Therefore, when quantitative cistern 36 feeds water, purify in the chamber 58, when the feedwater beginning, only supply with a certain amount of water to quantitative cistern 36 by purifying waste water of storage in purification chamber 58 even water storing tank 51 interior water fully flow into by filter 59 from water storing tank 51.Therefore, even the hole of filter 59 is less, water flowing is relatively poor, and the water in the water storing tank 51 makes viscosity higher because of being chilled to low temperature, and is relatively more difficult by filter 59, also can supply with a certain amount of purifying waste water in quantitative cistern 36.

Yet when flowing out from admission port 53 when purifying waste water, the extraneous air that has same amount enters and purifies in the chamber 58.These air will hinder water to flow out from admission port 53 as not discharging from purify chamber 58, then in water-supply valve mechanism is in relatively short time of open mode, can not supply with and quantitatively purify waste water to quantitative cistern 36, because, discharge air portion 58b in the upper design that purifies chamber 58, so, enter the air that purifies in the chamber 58 and discharge smoothly from discharging air portion 58b.Therefore, this with do not have structure air discharge portion 58b, that air is discharged from the water-purifying filter 59 of detailed catalogue different, water can successfully flow out from admission port 53.

After having stored a certain amount of water in the above-mentioned quantitative cistern 36, operating axis 65 is done moving of second stroke from upper limit position PU to lower position PL.Along with the descending motion of operating axis 65, at first the valve body 56 of water-supply valve mechanism 54 is closed the admission port 53 of water storing tank 51, and after this, as shown in Figure 3, the valve body 40 of outlet valve mechanism 38 leaves from the bottom of quantitative cistern 36, thereby opens delivery port 37.Like this, quantitatively water directions shown in the arrow A of Fig. 2 of storing in the admission port 53 of water of storing in the cistern 36 and water storing tank 51 flow to water container 25 from delivery port 37, because drop, are fed to the ice-making disc 22 from flow export 26 by managing 28.

On the other hand, to quantitative cistern 36 water supply starts, when purifying the water yield minimizing in the chamber 38, the water in the water storing tank 51 flows into by filter 59 and purifies in the chambeies 58 from water storing tank 51.Therefore, closing 53 backs, above-mentioned admission port by filter 59 water supply in purifying chamber 58 continuously, when purifying water levels in the chamber 58 and reaching water level in the water storing tank 51, water stops to enter in the purification chamber 58 from filter 59.Therefore, in purifying chamber 58, be as the criterion and get ready once, stored a certain amount of above water to the water supply of quantitative cistern 36.

So, after operating axis 65 drops to the lower position, moving of the third trip that operating axis 65 returns to the centre position work from the lower position, when operating axis 65 made the valve rod 39 of outlet valve mechanism 38 upwards press certain amount, then the valve body 40 of outlet valve mechanism 38 was closed delivery port 37.And be through with to the water supply of ice-making disc 22 this moment, and after this, operation valve 65 rises to centre position PC as shown in Figure 1 and stops on this position, closes delivery port 37.

Because it is identical when the cold air in the ice-making compartment 23 becomes ice to the water coolings in the ice-making disc 22 with above-mentioned ice-making disc 22, spin upside down ice to be fallen be stored in and ice in the chamber, when ice-making disc 22 was returned original position then, motor 64 was switched on once more, carried out above-mentioned action repeatedly.Therefore, owing to supply water to quantitative cistern 36 from water storing tank 51 repeatedly, water last in the water storing tank 51 has lacked, but owing to purify the bottom of the water inlet 58a in chamber 58 at the inner bottom surface of water storing tank 51, and purify chamber 58 volumetric ratio shared and want big for the desired amount of water to quantitative cistern 36 in the inner bottom surface bottom of water storing tank 51, so, the last feedwater before flowing skies at water storing tank 51, each feedwater can both make to purify and store in the chamber 58 than supplying the big purification water yield of the desired amount of water to quantitative cistern 36.

According to the foregoing description, also comprise the water in the major diameter ring portion 52a, in quantitative cistern 36, store certain water gaging only being arranged and to ice-making disc 22 supplies.At this moment, different with the structure of prior art shown in Figure 15, its structure is by the water the supply system ice pan 5 of pump 3 in limbers 9 is filled with water connection the quantitative hydroecium of chamber 11 in prior art; And in the present embodiment when ice-making disc 22 feedwater, the water that removes the water in the quantitative cistern 36 all can not flow into, and generally is to ice-making disc 22 water supply, so can carry out the higher quantitative water supply of precision with a certain amount of.

And, because the volume that will purify in the chamber 58 is designed to than big for the capacity of a water to quantitative cistern 36, can supply with quantitative cistern 36 sufficiently so only open the water that purifies through polishing filter 59 in very short time in water-supply valve mechanism 54.

And, since in the upper design that purifies chamber 58 discharge air portion 58b, can be discharged from smoothly along with entering the air that purifies in the chamber 58 to the water supply of quantitative cistern 36, can not take place owing to the air discharge does not freely influence from the flowability of water storing tank 51 to the water supply of quantitative cistern 36 from water storing tank 51.In addition, above discharge air portion 58b is in storage jar 51, be provided with highlightedly, enter in the purification chamber 58 by discharging air portion 58b so can prevent the water in the water storing tank 51 with very high height.

And, because the discharge air portion 58b that purifies chamber 58 on valve rod 55 top positions of water-supply valve mechanism 54, can not move the generation adverse influence to the rising of valve rod 55 so purify chamber 58.

Also have, purify chamber 58 and be mounted in the dish 52, purify chamber 58 so can take off cup 52 and take off, just more convenient to the cleaning of filter 59.

In addition, according to present embodiment, can access following effect.

1) since quantitatively the water in the cistern 36 be fed in the ice-making disc 22 by drop, water supplying pump is different with using, a large amount of noises of noise that just can generating pump in feedwater etc. can more undisturbedly supply water.At this moment, only use the drive source of motor 64, so the effect of carrying out quiet water supply can be arranged as valve operating system 61.

2) quantitatively cistern 36 often is empty, storage of water just in the time period when ice-making disc 22 supplies water only, with often the structure of storage of water is different in quantitative cistern 36 in order to supply water to ice-making disc 22, incrustation scale can not take place in quantitative cistern 36 be difficult to mouldyly, and the peculiar smell that the food refrigerating chamber 23 in sends can not absorbed by the water in the quantitative cistern 36 yet.Before the finishing ice-making of ice-making disc 22, often need in 2-5 hour in quantitative cistern 36 under the situation of storage of water, the peculiar smell of the food in the refrigerating chamber 23 will be absorbed by water.

3) generally speaking,, for example produced the slit between admission port 53 peripheral part and the valve body 56, and when taking place from clearance leakage, the water that spills is stored in the water container 25 because water-supply valve mechanism 54 and outlet valve mechanism 38 maintain under the closed condition.Thereby the water that leaks out from water storing tank 51 can not be fed in the ice-making disc 22 by managing 28, can prevent the phenomenon of water overflow from ice-making disc 22.And the water that leaks out from water storing tank 51 is stored in the quantitative cistern 36, so that feed to ice-making disc 22 when supplying water next time.

4) because the valve body 40 of outlet valve mechanism 38 can move up and down on lower valve column 42, be arranged on and by the compression of second between lower end flange subordinate's valve rod 42a of lower valve column 42 spring 46 jacking force upward, valve body 40 is pressed on the annular seal ring 50, so, when operating axis 65 rising water-supply valve mechanisms 54 begin to open, because the second compression spring 46 further compresses, and has more strengthened the compress degree of valve body 40 to annular seal ring 50.Therefore, when quantitative cistern 36 supplies water, can positively seal delivery port 37, can not take place to cause to the not normal phenomenon of the output of ice-making disc 22 owing to the leakage of delivery port 37 from water storing tank 51.

5) when delivery port 37 is closed, because lower valve column 42 has born the elastic force of the first compression spring 44, and valve body 40 only be subjected to second the compression spring 46 elastic force press to annular seal ring 50, and when delivery port 37 is opened, because locating snap ring 45 has born the elastic force of second spring 46, valve body 40 only is subjected to the elastic force of first spring 44 and leaves ring dog sealing ring 50, even do not consider the elastic force strong or weak relation of the first compression spring 44 and the second compression spring 46 at all, can open and close valve body 40 by the elastic force of the first and second compression springs 44 and 46, and two springs 44,46 are easy on making.

6) because of quantitative cistern 36 can take off,, can clean easily by just washing with water because long-term the use when speckling with filth on it, can be taken off from water container 25 easily.

At this moment, the valve rod 39 of outlet valve mechanism 38 is divided into valve rod 41 and lower valve column 42, last valve rod 41 is installed in a side of quantitative cistern 36, and can lower valve column 42 sides isolated unit from quantitative cistern 36, compare with the situation that valve body 40 and two compression springs 44,46 are installed on a root valve rod, it is easier to assemble.

7) be contained in bag shape nut 34 by the individual block cover 40a of portion with valve body 40 and just can lower valve column 42 sides as another unit be contained on the quantitative cistern 36, assembling is easy to.And because moving up and down of valve body 40 is subjected to bag guiding of shape nut 34, it moves up and down and just can carry out smoothly.And, prevent that seal member 47 that leaking appears in the joint portion between lower valve column 42 and the valve body 40 is installed on the cylindrical portion 40c on top of valve body 40 of another different unit of quantitative cistern 36, so seal member 47 can easily be installed.

8) with respect to the annular seal ring of installing at peripheral part of delivery port 37 50, the inclined plane 40e of valve body 40 is with it the line contact, makes comparisons when contacting with face, and is just big to the pressure of annular seal ring 50 on the unit are of valve body 40.Therefore, strain takes place with the contact portion of inclined plane 40e in annular seal ring 50 easily, even many convex-concaves place is arranged on the 40e of inclined plane, because the strain of ring dog sealing ring 50, the place fits mutually with convex-concave, thereby when delivery port 37 was closed, the sealing between valve body 40 and the annular seal ring 50 can guarantee, can positively prevent the leakage of sealing.On this, when valve body 40 contacts with annular seal ring 50 with inclined plane 40e, annular seal ring 50 has off-centre even the inclined plane 40e of valve body 40 is relative, by the position of the guiding function correction valve body 40 of inclined plane 40e to concentric position, the relative annular seal ring 50 of the inclined plane 40e of valve body 40 can access very tight sealing effectiveness really for circumferentially contact entirely.

And the locking function of the upper limit position of the restricted valve body 40 with respect to valve rod 39 of the locating snap ring 45 of following valve complete 42 also can be varied to the use pin, or the jut of one is set on lower valve column 42.

Figure 12-Figure 14 is expression second-Di, four embodiment of the present invention, and these embodiment only represent to seal the different structure of the seal between the valve body 40 of the delivery port 37 of quantitative cistern 36 and outlet valve mechanism 38.

In second embodiment shown in Figure 12, in the quantitative outside, perisporium bottom of the delivery port 37 of cistern 36 flange 37a is set highlightedly, the 73a that perimembranous forms in it when forming seal 73 circlewise, and make combining of ditch 73a and flange 37a, seal 73 just is contained on the delivery port 37.In this embodiment, valve body 40 need not form the inclined plane 40e among first embodiment but form tabular surface 40f, and valve body 40 contacts with seal 73 by this tabular surface 40f.

In the 3rd embodiment shown in Figure 13, in the quantitative perisporium bottom of the delivery port 37 of cistern 36 anti-L shaped cyclic lug 37b is set highlightedly, and when forming annular seal 74, all sides form ditch 74 in altogether, anti-L shaped cyclic lug 37b by ditch 74 and delivery port 37 combines, and seal 74 just installs on the delivery port 37.

In the 4th embodiment shown in Figure 14, on the 40e of the inclined plane of valve body 40, form ditch 40g, as seal this O-ring seals is combined with O-ring seals with ditch 40g, in the quantitative bottom of the delivery port 37 of cistern 36 tapering 37c is set highlightedly, being contacted with O-ring seals by this tapering 37c constitutes.

And the present invention is not limited to the embodiment shown in the above-mentioned figure, can make various change and progress on this basis.

Cam mechanism 67 is to be equivalent to change the rotational motion of motor 66 into straight-line rotational motion-rectilinear motion converting means, can replace with suitable way, and as screw mechanism, or crank mechanism.

As the drive source of valve operating system 63, can with electromagnet keep operating axis 65 in upper limit position, centre position, lower position.

By above explanation, use the present invention can obtain following advantage.

In the feedwater device of the automatic ice-making plant in claim 1, the chamber can purified The water that interior storage purifies through the purification filtering device, and store than supplying a water to quantitative cistern Amount want the big water yield, even the water flowing of purification filtering device is relatively poor, and the water in the water storing tank Viscosity is higher at low temperatures, also can be in the fixed short time from water storing tank to quantitative water storage Device is supplied a certain amount of water. And, in purifying the chamber, having designed the discharge air portion, can put down Discharge the air that enters when quantitative cistern supplies water slidingly, and should discharge the air portion setting In the top position of the valve rod of water-supply valve, valve rod just stretches into this discharge air portion when rising, So the rising of valve rod can not produce bad impact to purifying the chamber.

In the feedwater device of the automatic ice-making plant in claim 2, owing to purify the chamber be Be under the bottom of water storing tank that the position of the shape that sink installs, so except in the water storage ullage Before last waters supply the time, can supply one to quantitative cistern in frequent storage Purifying waste water of inferior a certain amount of above amount.

Claims (2)

1. the waterworks of an automatic ice-making plant, waterworks have quantitative cistern, outlet valve mechanism, water storage tank, water-supply valve mechanism, valve operating system and water purifier; Wherein quantitative cistern is positioned at the top of ice maker container, delivery port is arranged at its bottom, the switching of the above-mentioned delivery port of this quantitative cistern of outlet valve mechanism controls, water storage tank is configured in the top of above-mentioned quantitative cistern, supply with a certain amount of water from the admission port of bottom to above-mentioned quantitative cistern, water-supply valve mechanism is used for the above-mentioned admission port of this water storage tank of switch, the valve rod of valve operating system by rising water-supply valve mechanism and the valve rod of above-mentioned outlet valve mechanism, close above-mentioned delivery port and open above-mentioned admission port, supply with a certain amount of water from water storage tank to above-mentioned quantitative cistern, afterwards, the valve rod of valve rod by reducing water-supply valve mechanism and above-mentioned outlet valve mechanism is closed above-mentioned admission port and is opened above-mentioned delivery port, a certain amount of water warp that is stored in the above-mentioned quantitative cistern is supplied with above-mentioned ice maker container to the water route, the purifying box of water purifier is located in the above-mentioned water storage tank and covers above-mentioned admission port, there is water-purifying filter at the current hand-hole place of the periphery of purifying box, the upright at an upper portion thereof simultaneously gas outlet of establishing, the water of the inflow purifying box inside by water-purifying filter flows out from above-mentioned admission port, simultaneously, along with flow out water from the admission port, the air that will immerse purifying box inside from the outside is discharged to top in the above-mentioned water storage tank from gas outlet, above-mentioned water purifier the mode in the above-mentioned water storage tank of being configured in is to make gas outlet be positioned at the valve rod top of above-mentioned water-supply valve mechanism, simultaneously, the internal volume of purifying box should greater than at every turn from above-mentioned water storage tank more than a certain amount of water capacity that above-mentioned quantitative cistern is supplied with.

2. waterworks according to claim 1 is characterized in that recess is made at the position of the configuration water purifier in the inner bottom surface of water storage tank, make the water inflow position of purifying box be positioned at the below also lower than the inner bottom surface of water storage tank.

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