CN204016001U - A kind of soy bean milk making machine - Google Patents

Abstract

The utility model relates to a kind of soy bean milk making machine, comprise head and cup, head comprises head upper cover and metal lower cover, the upper end of metal lower cover is provided with outside annular flange, annular flange is placed with lip ring, head upper cover lower end is provided with annular pressure holding face, metal lower cover is fixed at annular flange place and head upper cover closing lid, and metal lower cover and head upper cover closing lid fixing after, the compression unit that annular pressure holding face compresses lip ring makes lip ring seal the closing lid place of head upper cover and metal lower cover, it is 1.5mm to 10mm at the original thickness of vertical direction that the compression unit of lip ring is compressed front.Because the machining tolerance of metal lower cover is large compared to the machining tolerance of lower plastic cover, after adopting such scheme, metal lower cover can directly be fixedly connected with head upper cover, and the thickness of lip ring and decrement enough can ensure that closing lid sealing effectively, reliably; And complete machine cost is lower, complete machine lighter in weight, head good heat dissipation effect, long service life.

Description

A kind of soy bean milk making machine

Technical field

The utility model relates to a kind of kitchen electric device, particularly a kind of soy bean milk making machine.

Background technology

Soya-bean milk is a kind of nourishing beverage that people often drink, and soy bean milk making machine is widely used as the comparatively convenient household products making soya-bean milk.Soy bean milk making machine comprises head and cup two critical pieces, wherein head is divided into head upper cover and head lower cover, head upper cover and head lower cover are fastened formation head, cleaning is difficult to when making soya-bean milk in order to solve soy bean milk making machine, and hold chromatophilous problem during some chromatophilous materials simultaneously, the head lower cover of soy bean milk making machine generally all adopts double-deck structure, and the internal layer of head lower cover adopts lower plastic cover, and the skin of head lower cover adopts metal lower cover.

Owing to being installed with the most electric elements of soy bean milk making machine in handpiece of soybean milk machine, the fastening between head upper cover and head lower cover is sealed to the extremely important designing points of handpiece of soybean milk machine, has very important impact to the safe handling of soy bean milk making machine.For the soy bean milk making machine of double-layer lower cover of the prior art, after lower plastic cover is sleeved on metal lower cover inside by metal lower cover, be fastened together with head upper cover again and link together, the direct sealing position of head upper cover and head lower cover is between head upper cover and lower plastic cover, between head upper cover and lower plastic cover, the importance of sealing property will much larger than the sealing importance between lower plastic cover and metal lower cover, this is because, almost whole electric elements in head are all arranged in lower plastic cover, once the seal failure between head upper cover and lower plastic cover, to directly affect the use safety of soy bean milk making machine.Sealing between lower plastic cover with metal lower cover is then relative secondary, because the electric elements between lower plastic cover and metal lower cover and wire few (part soy bean milk making machine does not even arrange any electric elements and wire), even if there is a small amount of steam to enter interlayer between lower plastic cover and metal lower cover, because the obstruct that there is lower plastic cover can avoid steam to enter in lower plastic cover.

From head upper cover moulding, cost and be convenient to realize the situation such as sealing between lower plastic cover, in prior art, head upper cover generally also adopts plastic material to make, because plastics have good thermoplasticity and thermosetting, shaping simple, stable during making product, and the change in size after shaping is minimum, its actual dimensional tolerance is general all to be changed within ± 0.3mm.Therefore, when upper plastic cover and lower plastic cover are fastened, because the fit tolerance of connection bit can meet design requirement substantially, thus the size of the seal member at closing lid place also can relatively design less, simultaneously for the seal compression offsetting design tolerance also can design less.In such as prior art, the closing lid for upper plastic cover and lower plastic cover seals, and the thickness of its seal member is generally less than 1.2mm, and the decrement of seal member is generally designed to be less than 0.25mm, and when adopting above-mentioned design, the cost of seal member can be lower.

But the soy bean milk making machine of above-mentioned double-layer lower cover, also there is a lot of problem, such as adopt double-layer lower cover structure, parts are more, produce, assembly cost is higher, adopt double-deck lower cover, because lower plastic cover has thermal insulation, therefore, electric elements especially motor is in the inner set, operationally temperature rise is higher, and this working life on electric elements produces larger impact, and the easy temperature rise of electric elements is too high to be burnt out, damage.

If removed by lower plastic cover, metal lower cover and head upper cover is directly adopted to fasten, can workout cost and the soy bean milk making machine problem that temperature rise is higher when working, because the metal lower cover of individual layer can dispel the heat.But when metal lower cover is directly fixedly connected with head upper cover, the sealing of its closing lid can become new problem again.As everyone knows, metal material opposed plastic material is more difficult shaping, the thermoplasticity had compared to plastic material and thermosetting poor, and metal is not identical with the thermal coefficient of expansion of plastics yet, metal material needs after processes repeatedly and heat treatment, just can have machinery or processing performance preferably.Special in soy bean milk making machine field, under metal, shutter fitting is when industrialization large-scale production, and the uniformity of its product size is comparatively difficult to ensure card, and when usually manufacturing, it is comparatively large that the margin of tolerance designs, and is generally at least ± 0.3mm.If metal lower cover is directly fixedly connected with head upper cover, then the flatness of its junction is relatively poor, especially, existing soy bean milk making machine metal lower cover is for the consideration of cost, many employings are simple and easy to shaping mode, as passed through section bar uniaxial direct tensile, water swelling, volume cuts out the molding modes such as welding, the actual size of its product with require that size generally differs larger, when adopting above-mentioned molding mode, actual tolerance even may reach or surpass ± 1mm, when metal lower cover and head upper cover are fastened and connected, if the seal member at the two sealing position place still adopts size design of the prior art, then certainly will there be the possibility into water at head closing lid place.

Now, no matter head upper cover adopts any material, the problems referred to above all may exist, especially when head upper cover adopts plastic material (or being only that head upper cover adopts plastic material at the sealing position place with metal lower cover), different due to metal and plastic material, metal lower cover and plastic machine head upper cover will be more difficult in the cooperation at sealing position place.

Utility model content

The object that the utility model will reach just is to provide a kind of soy bean milk making machine without lower plastic cover, and this soy bean milk making machine closing lid good seal performance, cost are low, easy for installation.

In order to achieve the above object, the utility model adopts following technical scheme: a kind of soy bean milk making machine, comprise head and cup, described head is positioned on cup, it is characterized in that: described head comprises head upper cover and metal lower cover, the upper end of described metal lower cover is provided with outside annular flange, described annular flange is placed with lip ring, described head upper cover lower end is provided with annular pressure holding face, described metal lower cover is fixed at described annular flange place and head upper cover closing lid, and metal lower cover and head upper cover closing lid fixing after, the compression unit that described annular pressure holding face compresses lip ring makes lip ring seal the closing lid place of head upper cover and metal lower cover, it is 1.5mm to 10mm at the original thickness of vertical direction that the compression unit of described lip ring is compressed front.

Further, described lip ring is silica gel sealing ring, and it is 1.5mm to 3mm at the original thickness of vertical direction that the compression unit of described silica gel sealing ring is compressed front;

Or described lip ring is foaming sealing ring, and it is 3mm to 8mm at the original thickness of vertical direction that the compression unit of described foaming sealing ring is compressed front;

Or described lip ring is hollow sealing ring, it is 5mm to 10mm at the original thickness of vertical direction that the compression unit of described hollow sealing ring is compressed front.

Further, described lip ring is silica gel sealing ring, it is 1.5mm to 3mm at the original thickness of vertical direction that the compression unit of described silica gel sealing ring is compressed front, and after described metal lower cover and head upper cover closing lid are fixed, the decrement of described silica gel sealing ring is 0.3mm to 1mm;

Or, described lip ring is foaming sealing ring, it is 3mm to 8mm at the original thickness of vertical direction that the compression unit of described foaming sealing ring is compressed front, and after described metal lower cover and head upper cover closing lid are fixed, the decrement of described foaming sealing ring is 0.8mm to 4mm;

Or, described lip ring is hollow sealing ring, it is 5mm to 10mm at the original thickness of vertical direction that the compression unit of described hollow sealing ring is compressed front, and after described metal lower cover and head upper cover closing lid are fixed, the decrement of described hollow sealing ring is 2mm to 6mm.

Further, described annular flange is provided with through hole, described lip ring is provided with the through hole corresponding with through hole, described head upper cover is provided with the screw pole corresponding with through hole, metal lower cover is locked on the screw pole of head upper cover through through hole, through hole by screw, the end face of described screw pole is positioned on annular pressure holding face, and described lip ring is pressed on annular flange by annular pressure holding face.

Further, described through hole edge is provided with the straight flange to head upper cover projection, and described lip ring is provided with groove, and described straight flange inserts in groove and lip ring is positioned on annular flange.

Further, described annular flange is provided with through hole, described head upper cover is provided with the screw pole corresponding with through hole, metal lower cover is locked on the screw pole of head upper cover through through hole by screw, described screw pole is positioned at inner side or the outside in annular pressure holding face, and described lip ring is pressed on annular flange by annular pressure holding face;

Or, described head upper cover comprises upper cover body and upper cap body, described annular flange is provided with screw support, described upper cover body is provided with the through hole corresponding with screw support, metal lower cover is locked on upper cover body through through hole by screw, described lip ring is pressed on annular flange by the annular pressure holding face of upper cover body, and described upper cap body covers screw and is placed on outside upper cover body.

Further, described head upper cover is provided with circular orientation face, after described lip ring is compressed, described annular flange is resisted against on circular orientation face, and the compression unit of described lip ring is TS at the original thickness of vertical direction before being compressed, it is H that described lip ring is compressed the height of rear annular pressure holding face to annular flange, wherein, and the decrement C=TS-H of described lip ring.

Further, described annular flange edge is provided with the flanging be folded on annular flange, and described flanging is resisted against on circular orientation face;

Or described annular flange edge is provided with flanging upwards, and described flanging top is resisted against on circular orientation face;

Or described annular flange edge is provided with flanging upwards, and described flanging top has the bending part be folded on flanging, and bending part is resisted against on circular orientation face;

Or described circular orientation face is the circular orientation step being arranged at head upper cover lateral wall, described annular flange edge is provided with flanging upwards, and described flanging top is resisted against on circular orientation step.

Further, described head upper cover is provided with annular convex rib with annular flange opposite position, described lip ring is the U-shaped sealing ring be set on annular convex rib, and described annular pressure holding face is the bottom surface of annular convex rib, and the bottom surface of described annular convex rib compresses at the bottom of the U-lag of U-shaped sealing ring;

Or, described head upper cover is provided with annular groove with annular flange opposite position, described lip ring is arranged in annular groove, and described annular pressure holding face is the groove end face of annular groove, and the groove end face of described annular groove compresses lip ring on annular flange.

Further, the contact width W of described annular pressure holding face pressure holding lip ring is 0.3mm ~ 3mm.

After adopting technique scheme, metal lower cover of the present utility model directly can be fixedly connected with head upper cover, and by the cup seal design between metal lower cover and head upper cover had larger thickness, can solve after metal lower cover is directly fixedly connected with head upper cover, head closing lid is difficult to the problem of sealing.Meanwhile, lip ring can also adopt different thickness and different structures, offsets metal lower cover and adds the large-size change produced man-hour, make lip ring can seal head reliably, again convenient installation.In addition, owing to not arranging lower plastic cover in head, compared to prior art, complete machine cost and complete machine weight can reduce greatly.Meanwhile, due to without lower plastic cover, soy bean milk making machine not only structure is more simplified, and also improves complete machine packaging efficiency, reduces complete machine assembly cost.Meanwhile, due to without lower plastic cover, the heat produced in head can directly conduct outside metal lower cover by metal lower cover, therefore, can reduce the temperature rise of each electric elements in head greatly, the service life of raising complete machine.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, the utility model is described in further detail:

Fig. 1 is the structural representation of the first embodiment of the present utility model;

Fig. 2 a is the enlarged diagram (simultaneously for lip ring is by the structure before compressing) at A place in Fig. 1;

Fig. 2 b is lip ring by the structural representation after compressing;

Fig. 2 c is the second structure of closing lid sealing in embodiment one;

Fig. 2 d is the third structure of closing lid sealing in embodiment one;

Fig. 3 is the structural representation of the second embodiment of the present utility model;

Fig. 4 a is the enlarged diagram at B place in Fig. 3;

Fig. 4 b is the structural representation of head upper cover in Fig. 3;

Fig. 4 c is the second structure of closing lid sealing in embodiment two;

Fig. 4 d is the third structure of closing lid sealing in embodiment two;

Fig. 4 e is the 4th kind of structure of closing lid sealing in embodiment two;

Fig. 5 is the structural representation of the third embodiment of the present utility model;

Fig. 6 is the structural representation of the 4th kind of embodiment of the present utility model;

Fig. 7 a is the enlarged diagram at C place in Fig. 6;

Fig. 7 b is the structural representation of head upper cover in Fig. 6;

Fig. 7 c is the structural representation of metal lower cover in Fig. 6.

Detailed description of the invention

Embodiment one:

As shown in Figure 1, Figure 2 shown in a, Fig. 2 b, it is the first embodiment of the present utility model.A kind of soy bean milk making machine, comprise head and cup, described head is positioned on cup, described head comprises head upper cover 1 and metal lower cover 2, the upper end of described metal lower cover 2 is provided with outside annular flange 21, described annular flange 21 is placed with lip ring 3, described head upper cover 1 lower end is provided with annular pressure holding face 11, described metal lower cover 2 is fixed at described annular flange 21 place and head upper cover 1 closing lid, and metal lower cover 2 fixing with head upper cover 1 closing lid after, the compression unit that described annular pressure holding face 11 compresses lip ring 3 makes lip ring 3 seal the closing lid place of head upper cover 1 and metal lower cover 2.

In the present embodiment, described lip ring is foaming sealing ring, the outside that head upper cover is positioned at annular pressure holding face 11 is also provided with circular orientation face 12, when foaming sealing ring is pressed on annular flange 21 by annular pressure holding face 11, the edge of annular flange 21 is resisted against on circular orientation face 12, can guarantee fund subordinate covers 2, lip ring 3 and head upper cover 1 be in place.Wherein, the compression unit of described lip ring is set to T at the original thickness of vertical direction before being compressed _s, it is H that described lip ring is compressed the height of rear annular pressure holding face to annular flange, when the edge of annular flange is resisted against on circular orientation face, and the decrement C=T of lip ring _s-H.It can thus be appreciated that, in the present embodiment, arranging of circular orientation face has direct impact to the decrement of lip ring, therefore, the design size of the design size to metal lower cover, head upper cover is needed in product actual production process, and the thickness of lip ring carries out the calculating of Dimension Chain Tolerance band, to calculate the optimal setting positions in circular orientation face, and then realize the sealing effectiveness that closing lid sealing has optimum.

In the present embodiment, owing to not arranging lower plastic cover in head, metal lower cover is directly fixedly connected with head upper cover, and compared to prior art, complete machine cost and complete machine weight can reduce greatly.Meanwhile, due to without lower plastic cover, soy bean milk making machine not only structure is more simplified, and also improves complete machine packaging efficiency, reduces complete machine assembly cost.Meanwhile, due to without lower plastic cover, the heat produced in head can directly conduct outside metal lower cover by metal lower cover, therefore, can reduce the temperature rise of each electric elements in head greatly, the service life of raising complete machine.

In addition, metal lower cover is directly fixedly connected with head upper cover.Because metal lower cover is made up of metal material, metal material itself has higher rigidity and hardness, shaping more difficult.All generally by lower-cost technological forming modes such as stretching, water swelling, roll welding at the moulding process of soy bean milk making machine field metal lower cover, and metal lower cover also needs after formation through processing repeatedly or process, to make metal lower cover have good performance and outward appearance, such as the PROCESS FOR TREATMENT such as antirust, deburring, polishing are carried out to metal lower cover.Therefore, the metal lower cover uniformity produced is poor, special metal lower cover shaping and repeatedly after processing its change in size comparatively large, make the tolerance variation scope of metal lower cover larger compared to working of plastics.And when metal lower cover is directly fixedly connected with head upper cover, the flatness of its junction also can be poor compared to working of plastics, therefore, in order to ensure that lip ring can carry out effective closing lid sealing, the relatively large deviation that necessity of making use of momentum is asked lip ring to have larger decrement to produce due to machining to offset metal lower cover.In the present embodiment, lip ring is foaming sealing ring, because foaming sealing ring includes numerous tiny bubble, therefore, foam after sealing ring is compressed and can have larger decrement, in conjunction with metal lower cover by moulding process such as common stretchings, in the present embodiment, the decrement C of foaming sealing ring can be set to 0.8mm to 4mm, and when this decrement, the compression unit of foaming sealing ring is compressed the original thickness T of anteposition in vertical direction _s3mm to 8mm can be set to.Foaming sealing ring includes numerous tiny bubble due to it, therefore decrement is larger compared to the decrement of common silica gel sealing ring, and the sealing ring thickness that foams is less and when being less than 3mm, foam the shaping more difficult of sealing ring, the poor easy fracture of foaming sealing ring intensity, in addition, and when the sealing ring that foams is greater than 8mm, after the compression of foaming sealing ring, its resilience is poor again, therefore in the present embodiment, the thickness of foaming sealing ring is set as 3mm≤T _s≤ 8mm.In the present embodiment, the foaming thickness of sealing ring and the amount of decrement change with the change of metal lower cover tolerance, with the machining tolerance making the decrement of foaming sealing ring can offset metal lower cover.Such as, when the dimensional tolerance of metal lower cover changes greatly, it is comparatively large that the thickness of foaming sealing ring and decrement also can be arranged, and now, metal lower cover is for falling this amplification machining tolerance, and the cost of foaming sealing ring can corresponding increasing.And when the dimensional tolerance change of metal lower cover is less, it is less that the thickness of foaming sealing ring and decrement also can be arranged, now, improve the machining accuracy of metal lower cover, the cost of corresponding reduction foaming sealing ring.Both unfavorable factors each other above.In addition, the annular pressure holding face contact width be pressed on lip ring is W, in the present embodiment, annular pressure holding face for pressure holding foaming sealing ring becomes convex tendon shape, the annular whole pressure holding in pressure holding face is on foaming sealing ring, therefore, W is simultaneously for annular pressure holding face is width, general head upper cover is working of plastics, working of plastics is by formed in mould, simultaneously in order to ensure that annular pressure holding mask has certain intensity, require W >=0.3mm, because as W < 0.3mm, annular pressure holding face is shaping more difficult on the one hand, closing lid sealing function is carried out for compressing lip ring in annular pressure holding face on the other hand, therefore, when lower than 0.3mm, annular pressure holding face stressed comparatively large after easily squeezedly to collapse, likely cause the problem of closing lid seal failure further.Simultaneously, W neither be the bigger the better, when W increases, annular pressure holding face also can increase with the contact surface of lip ring, on the one hand annular pressure holding face becomes large due to width, flatness will be deteriorated, the annular pressure holding face of easy existence does not press tightly the situation of lip ring, on the other hand, because the contact surface of annular pressure holding face with lip ring increases, need power lip ring extruding being formed compression seal also to require comparatively large, the external force that such closing lid fixes needs also can strengthen, further add the difficulty of assembling, also can there is impact to the poor sealing of closing lid.Contact width W=0.3mm ~ the 3mm of general annular pressure holding face pressure holding lip ring.It should be noted that, on head upper cover, the contact width value of annular pressure holding face pressure holding lip ring under different cross section can be identical, also can be different.

Certainly, for the present embodiment, the structure that annular pressure holding face compresses lip ring can carry out some distortion:

Such as, as shown in Figure 2 c, head upper cover 1 is provided with annular convex rib 13 with annular flange 21 opposite position, described lip ring is the U-shaped sealing ring 31 be set on annular convex rib 13, annular pressure holding face 11 is the bottom surface of annular convex rib 13, the bottom surface of described annular convex rib compresses at the bottom of the U-lag of U-shaped sealing ring 31, and after metal lower cover and head upper cover are fixed, closing lid can seal by U-shaped sealing ring.According to above-mentioned analysis, after metal lower cover is directly fixedly connected with head upper cover, the decrement of U-shaped sealing ring needs the tolerance variation offsetting the generation of metal lower cover machining.Therefore, when the machining accuracy of metal lower cover improves, U-shaped sealing ring also can adopt common silica gel sealing ring.Because the machining accuracy of metal lower cover improves the processing cost that will certainly increase metal lower cover, and meanwhile, the machining accuracy of metal lower cover improves, and its machining tolerance also certainly will can be greater than the production tolerance of the mould-forming process of working of plastics.Therefore, the consideration of the shaping tolerance of plastic material is greater than in conjunction with metal lower cover raising precision processing cost height and metal material moulding tolerance, in this configuration, the decrement C of common silica gel sealing ring can be set to 0.3mm to 1mm, and the compression unit of corresponding silica gel sealing ring is compressed the original thickness T of anteposition in vertical direction _s1.5mm to 3mm can be set to.In the present embodiment, lip ring is common silica gel sealing ring, and due in prior art, when common silica gel sealing ring thickness is less than 1.2mm, its decrement is also less, therefore, wants to make common silica gel sealing ring have corresponding more a little bigger decrement, its thickness T _sinevitable requirement is greater than 1.2mm, and in addition, when the thickness of silica gel sealing ring increases, corresponding stressed will the increasing that decrement will be made to increase inevitable requirement closing lid, therefore, increases the difficulty that closing lid is installed.For this structure, common silica gel sealing ring wants to reach effective closing lid sealing effectiveness, and the thickness of its silica gel sealing ring compression unit is generally set as 1.5mm≤T _s≤ 3mm.Simultaneously, in this configuration, annular flange edge is provided with the flanging be folded on annular flange, after metal lower cover and head upper cover closing lid are fixed, be resisted against on circular orientation face by flanging and realize location, after flanging process is carried out to annular flange edge, the intensity at annular flange edge can be increased, be unlikely to make annular flange occur distortion, simultaneously, in metal lower cover production process, easily there is sharp sharp edge in the edge of annular flange, easily cause and hinder hand, carry out flanging process to be conducive to improving follow-up assembling, on the other hand, because metal lower cover has larger machining tolerance, certainly will the roundness of annular flange poor, after carrying out flanging process, full circle can be carried out to annular flange, make it to be beneficial to installation that is follow-up and head upper cover.

Also such as, as shown in Figure 2 d, on head upper cover, 1 is provided with annular groove 14 with annular flange 21 opposite position, described lip ring is hollow sealing ring 32, and hollow sealing ring 32 is arranged in annular groove 14, annular pressure holding face 11 is the groove end face of annular groove 14, and after metal lower cover and head upper cover closing lid are fixed, the groove end face of annular groove 14 compresses hollow sealing ring 32 on annular flange 21.Be hollow-core construction in hollow sealing ring in this configuration, therefore, annular pressure holding face pressure holding hollow sealing ring must produce larger decrement, known for those skilled in the art, the decrement of hollow sealing ring is obviously greater than foaming sealing ring under similarity condition and common silica gel sealing ring.Closing lid for this structure seals, even if undesirable due to machining accuracy of metal lower cover, mismachining tolerance is greater than ± 1mm, and hollow sealing ring also can be offset by the decrement of himself.In this structure, the decrement C of hollow sealing ring is set to 2mm to 6mm, and the compression unit of corresponding hollow sealing ring is being compressed anteposition in the original thickness T of vertical direction _s5mm to 10mm can be set to.Adopting hollow sealing ring to carry out closing lid seal compression can be maximum, and sealing effectiveness is best, but the thickness of hollow sealing ring is excessive can produce harmful effect to the installation of head closing lid and outward appearance again, and such as there is gap at outward appearance closing lid place, affects attractive in appearance; The problems such as the excessive bad installation of hollow sealing ring.Certainly, hollow sealing ring is too small, the shaping relatively difficulty of hollow sealing ring, the manufacturing cost of the shaping production of the corresponding increase of meeting.In conjunction with the problems referred to above, in this structure, generally the thickness of hollow sealing ring compression unit is set as 5mm≤T _s≤ 10mm.In addition, 2d is known with reference to the accompanying drawings, and in this configuration, hollow sealing ring is positioned at annular groove, and therefore, the contact width W of annular pressure holding face pressure holding lip ring is actual is the width of hollow sealing ring.

It should be noted that, the shape of lip ring is not limited to the rectangle described in the present embodiment, also can be circular or other shape.Such as: the cross sectional shape of lip ring is " Contraband " font, waveform, " M " font, " day " font etc.In addition, in the present embodiment, the structure of above-mentioned lip ring, thickness and decrement, and the change such as the contact width value of annular pressure holding face pressure holding lip ring is all applicable to other embodiment of the present utility model.

Embodiment two:

As shown in Fig. 3, Fig. 4 a, Fig. 4 b, it is the second embodiment of the present utility model.In the present embodiment, annular flange 21 is provided with through hole 211, head upper cover 1 is provided with the screw pole 15 corresponding with through hole 211, and on lip ring 3, be provided with the through hole 33 corresponding with through hole 211, metal lower cover 2 is locked on head upper cover 1 with through hole 33 through through hole 211 by screw 4 together with lip ring 3, in the present embodiment, face residing for the end face of screw pole 15 is on annular pressure holding face 11, and lip ring 3 is pressed on annular flange 21 by the face at screw pole 15 end face place.In addition, the outside that head upper cover 1 is positioned at circular orientation face 12 is also provided with the annular protrusion 16 for blocking annular flange 21, this annular protrusion 16 can prevent from exposing between annular flange 21 and head upper cover 1 have installation gap, thus affects the aesthetic of complete machine.

The closing lid that the present embodiment mainly solves head upper cover and metal lower cover is fixed, and is namely fixed by the mode that screw is exterior.This mounting means is simple, and the coupler on head can directly be fixed on head upper cover, therefore, can realize the standardization of metal lower cover, and what be conducive to soy bean milk making machine falls this.In addition, screw pole is directly arranged on annular pressure holding face, screw can be made to have balanced stress surface to annular pressure holding mask, annular pressure holding face can be made can to compress lip ring uniformly.

Certainly, in the present embodiment, the end face of screw pole also can not be positioned on annular pressure holding face.Such as, as illustrated in fig. 4 c, screw pole 15 is positioned at the inner side in annular pressure holding face 11, and screw 4 does not need, through lip ring 3, can realize fixing metal lower cover and head upper cover yet.Therefore, what adopt the lip ring of this structure to do is relatively little, only needs annular pressure holding face can pressure holding, and the cost of further lip ring can be lower relative to the structure in Fig. 4 a.Certainly, the installation corresponding lip ring fixed part being set and being more conducive to lip ring is covered on head upper cover or under metal.

Equally, based on the structure of Fig. 4 c, screw pole also can arrange the outside being positioned at annular pressure holding face, realizes sealing in lip ring.This structure can make the sealing area of lip ring reduce, even if the head upper cover being positioned at screw place has into water, the position due to lip ring arranges and also can ensure that head inside does not intake.

In addition, it should be noted that, in the present embodiment, annular flange coordinates the distortion that also can have various structures with the installation in circular orientation face:

Such as, as shown in figure 4d, be provided with flanging 212 upwards at annular flange 21 edge, flanging 212 top is resisted against on circular orientation face 12.After adopting this structure, flanging 212 is except may be used for the installation of positioning metal lower cover and head upper cover, can also carry out spacing to lip ring, can prevent lip ring from deviating from from annular flange, be conducive to the assembling of lip ring, metal lower cover and head upper cover.

Also such as, as shown in fig 4e, be provided with flanging 212 upwards at annular flange 21 edge, flanging 212 top has the bending part 213 be folded on flanging 212, and bending part 213 is resisted against on circular orientation face 12.This structure is the further change done on the architecture basics of Fig. 4 d, all first after cutting out, machine-shaping is carried out again because traditional handicraft metal lower cover is general, its precision of cutting out technique generally can be subject to the tolerances of cutting out frock clamp, mould, therefore the flatness at flanging top on annular flange is poor, thus utilize flanging directly to position and the location of metal lower cover and head upper cover likely can be caused to be forbidden, after metal lower cover mounted motor, likely there is off normal phenomenon in motor shaft.After flanging being carried out bending flanging in this structure, utilize bending part and circular orientation face to position, effectively can improve the phenomenon that location is inaccurate.Meanwhile, because the flanging of metal lower cover is also likely jagged, therefore, if do not carry out bending process, in assembling process, likely hand can be hindered.

It should be noted that, the above-mentioned change of the present embodiment also goes for other embodiment of the present utility model.

Embodiment three:

As shown in Figure 5, be the third embodiment of the present utility model.The present embodiment is the improvement done on the basis of embodiment two: the straight flange 214 being provided with outwardly convex at through hole 211 edge of annular flange 21, lip ring 3 is provided with groove 34, and straight flange 214 inserts in groove 34 and lip ring 3 is positioned on annular flange 21.In addition, head upper cover is provided with the annular protrusion 16 blocking lip ring 3, can prevent lip ring 3 from exposing to head, and the flanging 212 be provided with at the edge of annular flange 21 upwards, this flanging 212 wraps up annular protrusion 16, the outside that head upper cover 1 is positioned at annular protrusion 16 is also provided with the circular orientation face 12 corresponding with flanging 212, and after metal lower cover and head upper cover closing lid are fixed, flanging 212 is resisted against on circular orientation face 12.

In the present embodiment, straight flange and groove fit, can make lip ring be positioned on annular flange, can prevent lip ring from deviating from from annular flange, in addition, when metal lower cover and head upper cover are installed, also help installation, the convenience of the assembling of raising.Flanging parcel annular protrusion can make the entirety of handpiece of soybean milk machine more attractive in appearance, improves the class of soy bean milk making machine.

Certainly, the present embodiment also can improve according to the change of above-described embodiment.It should be noted that, the said structure of the present embodiment also can be applied to other embodiment of the present utility model.

Embodiment four:

As shown in Fig. 6, Fig. 7 a, Fig. 7 b, Fig. 7 c, be the 4th kind of embodiment of the present utility model.The present embodiment and embodiment two difference are: head upper cover 1 comprises upper cover body 17 and upper cap body 18, annular flange 21 is provided with screw support 22, upper cover body 17 is provided with the through hole 171 corresponding with screw support 22, upper cover body 17 is fixed on screw support 22 through through hole 171 by screw 5, lip ring 3 is set in the outside of screw support 22, and after metal lower cover and head upper cover closing lid are fixed, lip ring 3 is pressed on annular flange 21 by the annular pressure holding face 172 of upper cover body 17, in the present embodiment, screw support 22 is positioned at the through hole 171 in annular pressure holding face 172.And upper cap body 18 covers the outside that screw 5 is fixed on upper cover body 17.

In the present embodiment, metal lower cover is fixed on head upper cover by installing in head inside by screw, simultaneously fixing in the closing lid realizing metal lower cover and head upper cover, also achieves screw concealed.Not only make soy bean milk making machine overall appearance, do not have screw to expose and hide the dirt of slag Tibetan, also help consumer and clean soy bean milk making machine.

It should be noted that, in the present embodiment, the number needs of screw support wants multiple closing lid that could realize metal lower cover and head upper cover to seal reliably effectively, generally at least 4, and need be uniform along metal lower cover center circumference.In addition, upper cap body is installed after upper cover body and metal lower cover are installed again, and therefore, in the present embodiment, upper cap body both can be placed on the top of upper cover body, also can be undertaken coated by the lateral wall of upper cover body.It should be noted that, the above-mentioned change of the present embodiment also goes for other embodiment of the present utility model.

Those of ordinary skill in the art should be understood that the content that the utility model includes but not limited to accompanying drawing and describes in detailed description of the invention above.Any amendment not departing from function and structure principle of the present utility model all will comprise within the scope of the appended claims.

Claims (10)

1. a soy bean milk making machine, comprise head and cup, described head is positioned on cup, it is characterized in that: described head comprises head upper cover and metal lower cover, the upper end of described metal lower cover is provided with outside annular flange, described annular flange is placed with lip ring, described head upper cover lower end is provided with annular pressure holding face, described metal lower cover is fixed at described annular flange place and head upper cover closing lid, and metal lower cover and head upper cover closing lid fixing after, the compression unit that described annular pressure holding face compresses lip ring makes lip ring seal the closing lid place of head upper cover and metal lower cover, it is 1.5mm to 10mm at the original thickness of vertical direction that the compression unit of described lip ring is compressed front.

2. soy bean milk making machine according to claim 1, is characterized in that: described lip ring is silica gel sealing ring, is 1.5mm to 3mm at the original thickness of vertical direction before the compression unit of described silica gel sealing ring is compressed;

Or described lip ring is foaming sealing ring, and it is 3mm to 8mm at the original thickness of vertical direction that the compression unit of described foaming sealing ring is compressed front;

Or described lip ring is hollow sealing ring, it is 5mm to 10mm at the original thickness of vertical direction that the compression unit of described hollow sealing ring is compressed front.

3. soy bean milk making machine according to claim 1, it is characterized in that: described lip ring is silica gel sealing ring, it is 1.5mm to 3mm at the original thickness of vertical direction that the compression unit of described silica gel sealing ring is compressed front, after described metal lower cover and head upper cover closing lid are fixed, the decrement of described silica gel sealing ring is 0.3mm to 1mm;

Or, described lip ring is foaming sealing ring, it is 3mm to 8mm at the original thickness of vertical direction that the compression unit of described foaming sealing ring is compressed front, and after described metal lower cover and head upper cover closing lid are fixed, the decrement of described foaming sealing ring is 0.8mm to 4mm;

Or, described lip ring is hollow sealing ring, it is 5mm to 10mm at the original thickness of vertical direction that the compression unit of described hollow sealing ring is compressed front, and after described metal lower cover and head upper cover closing lid are fixed, the decrement of described hollow sealing ring is 2mm to 6mm.

4. soy bean milk making machine according to claim 1, it is characterized in that: described annular flange is provided with through hole, described lip ring is provided with the through hole corresponding with through hole, described head upper cover is provided with the screw pole corresponding with through hole, metal lower cover is locked on the screw pole of head upper cover through through hole, through hole by screw, the end face of described screw pole is positioned on annular pressure holding face, and described lip ring is pressed on annular flange by annular pressure holding face.

5. soy bean milk making machine according to claim 4, is characterized in that: described through hole edge is provided with the straight flange to head upper cover projection, and described lip ring is provided with groove, and described straight flange inserts in groove and lip ring is positioned on annular flange.

6. soy bean milk making machine according to claim 1, it is characterized in that: described annular flange is provided with through hole, described head upper cover is provided with the screw pole corresponding with through hole, metal lower cover is locked on the screw pole of head upper cover through through hole by screw, described screw pole is positioned at inner side or the outside in annular pressure holding face, and described lip ring is pressed on annular flange by annular pressure holding face;

Or, described head upper cover comprises upper cover body and upper cap body, described annular flange is provided with screw support, described upper cover body is provided with the through hole corresponding with screw support, metal lower cover is locked on upper cover body through through hole by screw, described lip ring is pressed on annular flange by the annular pressure holding face of upper cover body, and described upper cap body covers screw and is placed on outside upper cover body.

7. soy bean milk making machine according to claim 1, it is characterized in that: described head upper cover is provided with circular orientation face, after described lip ring is compressed, described annular flange is resisted against on circular orientation face, and the compression unit of described lip ring is T at the original thickness of vertical direction before being compressed _s, it is H that described lip ring is compressed the height of rear annular pressure holding face to annular flange, wherein, and the decrement C=T of described lip ring _s-H.

8. soy bean milk making machine according to claim 7, is characterized in that: described annular flange edge is provided with the flanging be folded on annular flange, and described flanging is resisted against on circular orientation face;

Or described annular flange edge is provided with flanging upwards, and described flanging top is resisted against on circular orientation face;

Or described annular flange edge is provided with flanging upwards, and described flanging top has the bending part be folded on flanging, and bending part is resisted against on circular orientation face;

Or described circular orientation face is the circular orientation step being arranged at head upper cover lateral wall, described annular flange edge is provided with flanging upwards, and described flanging top is resisted against on circular orientation step.

9. soy bean milk making machine according to claim 1, it is characterized in that: described head upper cover is provided with annular convex rib with annular flange opposite position, described lip ring is the U-shaped sealing ring be set on annular convex rib, described annular pressure holding face is the bottom surface of annular convex rib, and the bottom surface of described annular convex rib compresses at the bottom of the U-lag of U-shaped sealing ring;

Or, described head upper cover is provided with annular groove with annular flange opposite position, described lip ring is arranged in annular groove, and described annular pressure holding face is the groove end face of annular groove, and the groove end face of described annular groove compresses lip ring on annular flange.

10. soy bean milk making machine according to claim 1, is characterized in that: the contact width W of described annular pressure holding face pressure holding lip ring is 0.3mm ~ 3mm.