Juice extractor with waterproof eject safety switch
Technical field
The present invention relates to juice extractor, and it is the juice extractor with waterproof eject safety switch.
Background technology
Juice extractor is a kind of machine that fruits and vegetables can be quickly squeezed into Juice.
Existing juice extractor includes base, motor and jar, and motor is arranged in base, the opening of base and stirring
The base of cup cooperates, and when jar is positioned over the opening of base, is provided with safety switch at base openings, works as jar
When pressing pressure downwards, safety switch is connected, and motor could drive the agitating device in jar to smash fruits and vegetables.
But juice extractor is when in use, drinking water is added into jar more and be neutralized, therefore safety switch easily exists
Intake in operation, cause safety switch failure, hidden danger be present.
The content of the invention
It is an object of the invention to provide the juice extractor with waterproof eject safety switch, is not put into and pushes in jar
When, safety switch can effectively completely cut off liquid, circuit in protection switch, increase the service life.
In order to realize foregoing invention purpose, present invention employs following technical scheme:A kind of band waterproof eject safety open
The juice extractor of pass, including base, motor, safety switch assembly and jar, the motor are located in base, and jar bottom is set
There is sleeve, base is provided with the slot coordinated with sleeve, and the slot is provided with groove, and safety switch assembly is located in groove, sleeve
Be externally provided with for depressing when can promote the projection of safety switch assembly, safety switch assembly is connected with motor;
The safety switch assembly, including housing and shift knob;
- the shift knob includes the silica gel leather cup of movable contact, pressing section and movable telescopic reset, and pressing section is located at
Outside housing, the silica gel leather cup is located at the movable contact end relative with pressing section;
- the housing is provided with the first cavity volume and the second cavity volume, is provided with housing and is parallelly mounted to the first of housing side and connects
Line terminals and the second binding post, the first binding post end are provided with the first contact site, and the first contact site is in the first cavity volume;
Second binding post end is provided with and second connecting portion is electrically connected with movable contact, and second connecting portion is located in the second cavity volume, activity
Contact and silica gel leather cup are respectively positioned in the second cavity volume;
- silica gel leather cup includes the chassis portion of plate-like and the quarrel portion of tubulose, periphery and the inner walls phase in the chassis portion
It is fixed, be provided with the accommodating chamber for accommodating movable contact in the middle part of the quarrel portion, the junction in the chassis portion and quarrel portion be provided with
The activity of silica gel leather cup opens and closes the breath oral area of accommodating chamber;
When jar is installed on base, when projection is pushed into groove, projection extrudes and promotes pressing section to make work
Moving contact inwardly moves, and pressing section inwardly extrudes silica gel leather cup, and quarrel portion moves inward and extrudes chassis portion and deforms laterally, ceases mouth
Portion is moved laterally with chassis portion, is connected between accommodating chamber and the first cavity volume and passes through movable contact, and movable contact front end is supported
The first contact site is pressed in, second connecting portion, movable contact and the first contact site are electrically connected successively, and switch is in connected state;
When removing jar from base, projection by being taken out in groove, shift knob is not by external force, in Silicone Rubber
Under the chassis portion elastic recoil effect of bowl, quarrel portion drives movable contact to be together displaced outwardly, movable contact and the first contact site
Separation;And the passage that oral area is recovered to extrude to original position, breath oral area and close accommodating chamber between the first cavity volume by outside is ceased, is opened
Pass is off.
Preferably, the one end in quarrel portion towards the outside is additionally provided with hard set portion, the sidewall surfaces in the hard set portion
Provided with rigid outer layer, hard set portion is connected with quarrel portion and synchronizing moving, the movable contact are fixed on the middle part in hard set portion.
Preferably, the pressing section is located in hard set portion, and the hard set portion can when being provided with pressing section by radial load
The inclined-plane of axial movement is brought it about, the inclined-plane is again provided with rigid outer layer, and the telescopic direction of the pressing section is horizontally disposed with,
Another inclined-plane that the projection is engaged with the inclined-plane of pressing section.
Preferably, the movable contact includes contact end and conductive contact bar portion, is offered in the hard set portion
Bar portion lock chamber and end lock chamber, the end lock chamber are located at hard set portion backwards to the side of silica gel leather cup, contact bar portion
It is fixed in bar portion lock chamber, contact end is fixed in the lock chamber of end.
Preferably, the guiding conical plate for chassis portion movement and deformation laterally, the guide cone are additionally provided with the housing
Plate is tapered, and guiding conical plate is provided with what is passed through for movable contact between the first cavity volume and the second cavity volume, in the middle part of guiding conical plate
Through hole, the through hole connect the first cavity volume and the second cavity volume.
Preferably, the holding set for increasing breath oral area seal is additionally provided with the housing, the holding set is fixed on
Enclosure interior, the holding set is annular external member, and holding set longitudinal section is L-shaped, and keeping covering includes sleeve and holding bottom plate, institute
Quarrel portion is stated to be sheathed in sleeve;When shift knob is not restored to the original state by external force, the breath oral area is in sleeve and keeps bottom plate
Intersection extrudes and closes accommodating chamber.
Preferably, the chassis portion and the junction of inner walls are provided with the fold that more large deformation amount occurs for chassis portion
Ring, the fold ring in a ring wavy, the fold ring are integrally formed setting with chassis portion.
Preferably, the first contact site of first binding post uses memory alloy material, and the first contact site includes end
Portion, the arc contact portion contacted for same movable contact and heating make the kink that arc contact portion separates with movable contact;The end
Portion is located at the both ends of the first contact site and fixed with enclosure interior, and the bending part is between arc contact portion and end.
Compared with prior art, the juice extractor with waterproof eject safety switch of above-mentioned technical proposal is employed, is had
Following beneficial effect:
First, using the juice extractor with waterproof eject safety switch of the present invention, have and if only if convex on jar sleeve
When in the groove in block press-in base slot, safety switch assembly could smoothly start, and realize the rotation of motor, therefore safety open
The installation site of jar can be ensured in place when in use by closing component, and application method is correct.
2nd, safety switch assembly is located in the groove of base slot, and convex portion is located at the bottom of jar sleeve, therefore only
Having jar to press completely when being pressed onto bottom can open, and safety switch assembly is not easy to be stirred with foreign object by user, safety
Property it is high.
3rd, the safety switch assembly in juice extractor, the periphery in chassis portion are connected with inner walls, can be effectively by housing
The first cavity volume and the second cavity volume it is completely isolated, and steam only can from the junction in housing and quarrel portion enter the second cavity volume in,
The first cavity volume is cannot be introduced into, increases the guarantor to the first binding post (live wire that the first binding post is used for same circuit connects)
Shield.Effectively prevent steam or liquid from entering in the first binding post and its first contact site, make the circuit in safety switch assembly
Isolation is come completely, is ensured before shift knob presses, and on-off circuit is in absolute off-state, and the first contact site is in complete
Closed state, whole juice extractor are in cold state, even if having liquid enter also will not safety switch assembly damage, keep away
Exempt from short circuit and burn.
Because movable contact is fixed on inside silica gel leather cup, slight crack, water occurs in movable contact unavoidably in use
The gap that vapour is possible to the inwall with movable contact Yu quarrel portion enters in accommodating chamber, now ceases oral area in silica gel leather cup resilience
When, from chassis portion into quarrel portion moving process, the accommodating chamber where movable contact is completely closed, accommodating chamber is connect with first
The first cavity volume where contact portion completely cuts off completely, can also be stopped even if steam into accommodating chamber by breath oral area so that whole safety open
Close component and be in the state disconnected.Only external force promotes pressing section, movable contact is moved forward and contacts the first contact site so that opens
The internal circuit connection of pass, whole switch are just powered.
Brief description of the drawings
Fig. 1 is the sectional view of safety switch assembly in the present embodiment (do not stress state);
Fig. 2 is the sectional view (pressing section stress) of safety switch assembly in the present embodiment;
Fig. 3 is silica gel leather cup and the sectional view in hard set portion in the present embodiment;
Fig. 4 is the sectional view of movable contact in the present embodiment;
Fig. 5 is the half section structure diagram of silica gel leather cup in the present embodiment;
Fig. 6 is the structural representation that set is kept in the present embodiment;
Fig. 7 is the connection diagram of the first contact site and movable contact (normal condition) in the present embodiment;
Fig. 8 is the connection diagram of the first contact site and movable contact (overload) in the present embodiment;
Fig. 9 is the structural representation of the juice extractor of the invention with waterproof eject safety switch;
Figure 10 is the structural representation of the juice extractor of the invention with waterproof eject safety switch;
Figure 11 is the structural representation of the juice extractor of the invention with waterproof eject safety switch;
Figure 12 is the partial enlarged drawing at A in Figure 10;
Figure 13 is the partial enlarged drawing at B in Figure 11.
Reference:1st, safety switch assembly;10th, the first binding post;100th, the first contact site;1000th, end;
1001st, arc contact portion;1002nd, kink;11st, the second binding post;110th, second connecting portion;12nd, guiding conical plate;2nd, keep
Set;20th, bottom plate is kept;21st, sleeve;30th, silica gel leather cup;30a, chassis portion;30b, quarrel portion;300th, oral area is ceased;301st, fold
Ring;302nd, accommodating chamber;31st, hard set portion;310th, bar portion lock chamber;311st, end lock chamber;312nd, it is oriented to caulking groove;313rd, rigidity
Outer layer;32nd, movable contact;320th, contact bar portion;321st, contact end;322nd, guide ring;33rd, pressing section;4th, base;40th, insert
Groove;41st, groove;5th, jar;50th, sleeve;51st, projection.
Embodiment
The present invention is described further below in conjunction with the accompanying drawings.
A kind of juice extractor with waterproof eject safety switch as shown in Fig. 1 to 13, including base 4, motor, safety open
Close component 1 and jar 5, motor are located in base 4, the bottom of jar 5 is provided with sleeve 50, and base 4 is provided with to be coordinated with sleeve 50
Slot 40, slot 40 is provided with groove 41, and safety switch assembly 1 is located in groove 41, sleeve 50 be externally provided with for depressing when can
The projection 51 of safety switch assembly 1 is promoted, safety switch assembly 1 is connected with motor.
The position of safety switch assembly 1 in the groove 41 of the slot 40 of base 4, safety switch assembly 1 be not easy by finger or
Club extrudes, and staff, which keeps away to touch, causes motor to open the threat brought, greatly improves security.
Secondly as safety switch assembly 1 has and if only if the projection 51 on the sleeve 50 of jar 5 is pressed in groove 41
When entering in the groove 41 on the slot 40 of base 4, safety switch assembly 1 could smoothly start, and realize the rotation of motor, therefore safety
Switch module 1 can ensure the installation site of jar in place when in use, and application method is correct.
As shown in Figures 1 to 8, the safety switch assembly 1 in the present embodiment, including housing and shift knob.
As shown in figure 1, shift knob includes the silica gel leather cup that movable contact 32, pressing section 33 and movable telescopic reset
30, pressing section 33 is located at outside housing, and silica gel leather cup 30 is located at movable contact 32 end relative with pressing section 33.
The first binding post 10 and the second binding post 11 for being parallelly mounted to housing side are provided with housing, housing includes
First cavity volume and the second cavity volume, the end of the first binding post 10 are provided with the first contact site 100, and the first contact site 100 is located at first
In cavity volume;The end of second binding post 11 is provided with second connecting portion 110, and second connecting portion 110 electrically connects with movable contact 32, the
Two connecting portions 110, movable contact 32 and silica gel leather cup 30 are respectively positioned in the second cavity volume.
As shown in figure 3, silica gel leather cup 30 includes chassis portion 30a and quarrel portion 30b, chassis portion 30a is disc-shaped, quarrel portion
In a tubular form, quarrel portion 30b is vertically connected at chassis portion 30a to 30b.
Chassis portion 30a periphery is mutually fixed by fold ring 301 with inner walls, fold ring 301 be located at chassis portion 30a and
Between inner walls, in a ring wavy of fold ring 301, fold ring 301 and chassis portion 30a is integrally formed setting, fold ring
301 can be compressed and be stretched to a greater extent, ensure that chassis portion 30a can occur to deform to a greater extent.
The accommodating chamber 302 for accommodating movable contact 32, chassis portion 30a and quarrel portion 30b connection are provided with the middle part of quarrel portion 30b
Place is provided with breath oral area 300, and the wall thickness of breath oral area 300 is more than quarrel portion 30b wall thickness.
Holding set 2 and guiding conical plate 12 are additionally provided with housing.Set 2 is kept to be fixed on enclosure interior, it is annular sleeve to keep set 2
Part, keep 2 longitudinal sections of set L-shaped, keep set 2 to include sleeve 21 and keep bottom plate 20, quarrel portion 30b is sheathed on sleeve 21
Interior, the thickness of breath oral area 300 is more than the inwall radius of sleeve 21;When shift knob is not restored to the original state by external force, oral area 300 is ceased
Extruded in sleeve 21 and the holding intersection of bottom plate 20 and close accommodating chamber 302.The increase breath oral area 300 when silica gel leather cup 30 recovers
To the sealing of accommodating chamber 302.
Guiding conical plate 12 can guide to chassis portion 30a moving direction, and guiding conical plate 12 is tapered, guiding conical plate
12 between the first cavity volume and the second cavity volume, and the middle part of guiding conical plate 12 is provided with the through hole passed through for movable contact 32, and through hole connects
Logical first cavity volume and the second cavity volume.
As shown in Fig. 2 when jar 5 is arranged on base 4, the alignment 40 of sleeve 50, rotating jar 5 makes projection 51
Into in groove 41, projection 51 is moved from right to left by the pressing section 33 in slope driving safety switch assembly 1, pressing section 33
Dynamic, pressing section 33 drives quarrel portion 30b to be moved to case inside, and quarrel portion 30b extruding breath oral area 300 is along guiding conical plate 12 to the
The movement of both sides up and down of two cavity volumes, chassis portion 30a are extruded and drive fold ring 301 to deform, and breath oral area 300 also moves to periphery
Dynamic, the accommodating chamber 302 at middle part is opened, and the contact bar portion 320 of movable contact 32 passes through the through hole of guiding conical plate 12 and first
Contact site 100 contacts, and realizes second connecting portion 110, the electric connection of the contact site 100 of movable contact 32 and first, safety switch group
Part 1 is in connected state, and the total power switch of juice extractor starts, and rotates the juice squeezing knife blade in jar, juice extractor is in work
Make state.
As shown in figure 1, when jar 5 on base 4 by taking out, projection 51 no longer presses to pressing section 33, silica gel leather cup
30 are not stressed, and under the reset response of the Elastic stress of silica gel, chassis portion 30a is replied from the both ends of the second cavity volume to middle part,
Movable contact 32 follows quarrel portion 30b to be moved from enclosure interior to outside, and breath oral area 300 also has outside to enter the set for keeping set 2
In cylinder 21, because the barrel internal diameter of sleeve 21 is less than the thickness of breath oral area 300, breath oral area 300 is in sleeve 21 and keeps bottom plate 20
Junction mutually extrude, accommodating chamber 302 is closed, disconnect the cavity volume of accommodating chamber 302 and first connection, pass through rigid holding
Sealings that set 2 adds breath oral area 300, while safety switch assembly home loop is changed into opening a way, the first binding post and the
The connection of two binding posts disconnects, even if now there is steam to enter from bar portion lock chamber 310 in accommodating chamber 302, due to ceasing oral area
300 extruding sealing process, is obstructed to steam, the first cavity volume is in air-tight state, and whole juice extractor is in power-off
State.
Quarrel portion 30b is additionally provided with hard set portion 31 towards the one end in outside, and the sidewall surfaces in hard set portion 31 are provided with rigidity
Outer layer 313, the inside of hard set portion 31 be with the material identical silica gel of silica gel leather cup 30, hard set portion 31 is connected with quarrel portion 30b
And synchronizing moving, movable contact 32 are fixed on the middle part in hard set portion 31.Pressing section 33 is added by increasing rigid outer layer 313
Anti-bending strength, even if press pressure during Impact direction produce it is crooked, also hard set portion 31 will not will not also be bent cause firmly
Matter set portion 31 can not stretch.
Movable contact 32 is in T-shape, includes the contact bar portion 320 of contact end 321 and conduction, is opened up in hard set portion 31
There are bar portion lock chamber 310 and end lock chamber 311, end lock chamber 311 is located at hard set portion 31 backwards to the one of silica gel leather cup 30
Side, contact bar portion 320 are fixed in bar portion lock chamber 310, and contact end 321 is fixed in end lock chamber 311.
Bar portion lock chamber 310 and end lock chamber 311 effectively improve movable contact 32 in the fixation in hard set portion 31, prevent
Only its caused skew and dislocation abjection phenomenon in the deformation of rubber cup 30 and moving process.
Contact end 321 is provided with backwards to a side surface of contact bar portion 320 is easy to contact end 321 to pass through bar portion lock chamber
310 arrival end lock chambers 311 and the guide ring 322 for preventing contact end 321 from shifting, the thickness of guide ring 322 is by contact
The edge of end 321 to inner side is incremented by successively, is provided with end lock chamber 311 and guiding caulking groove 312 is adapted with guide ring 322.Lead
Effect to ring 322 is effectively improve the installation of movable contact 32, and increases its fixed effect.
Pressing section 33 is located in hard set portion 31, and hard set portion 31 is provided with pressing section by can bring it about axle during radial load
To mobile inclined-plane, inclined-plane is again provided with rigid outer layer 313, by setting up inclined-plane, the force that control safety switch assembly opens and closes
Direction is not limited to the telescopic direction parallel to pressing section 33, and force direction can exert a force perpendicular to the moving direction of pressing section 33
(can be that horizontal direction exerts a force in Fig. 1, the force on vertical direction can also be realized by inclined-plane).
First contact site 100 of the first binding post 10 uses memory alloy material, and the first contact site 100 includes end
1000th, it is curved that the arc contact portion 1001 and heating contacted for same movable contact makes arc contact portion 1001 be separated with movable contact 32
Folding part 1002;End 1000 is located at the both ends of the first contact site 100 and fixed with enclosure interior, and kink 1002 touches positioned at arc
Between portion 1001 and end 1000.
The memory alloy material used in the present embodiment has a feature, i.e., curved when the temperature of the first contact site 100 rises
The bending angle of folding part 1002 can become big, and end 1000 is the fixation for the both ends of the first contact site 100.
As shown in Figure 7 and Figure 8, when the power for switching vigour part is excessive or overloads, the 100 interior electricity passed through of the first contact site
Flow larger, caused heat becomes more, the rising of the bulk temperature of the first contact site 100, due to the both ends of end 1000 be it is fixed, therefore
Kink 1002 is shunk and close to both ends, and arc contact portion 1001 is overall to be offset to the left side, and spacing is produced simultaneously with movable contact 32
Disconnected with movable contact 32, now switch is off, and avoids electrical appliance from overloading, and ensures security.
Described above is the preferred embodiment of the present invention, does not depart from this hair for the person of ordinary skill of the art
On the premise of bright principle, some variations and modifications can also be made, these also should be regarded as protection scope of the present invention.