A kind of juice extractor of safety switch waterproof
Technical field
The present invention relates to juice extractor, and it is a kind of juice extractor of safety switch waterproof.
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
The goal of the invention of the present invention is to solve the problems, such as the circuit in liquid or steam intrusion safety switch, there is provided
A kind of juice extractor of safety switch waterproof, when jar is not put into and is pushed, safety switch can effectively completely cut off liquid, protection
Circuit in switch, increases the service life.
In order to realize foregoing invention purpose, present invention employs following technical scheme:A kind of safety switch waterproof is squeezed the juice
Machine, including base, motor, safety switch and jar, the motor are located in base, and jar bottom is provided with sleeve, base
Provided with the slot coordinated with sleeve, the slot is provided with groove, and safety switch is located in groove, sleeve be externally provided with for depressing when
The projection of safety switch can be promoted, safety switch is connected with motor;The safety switch includes housing, shift knob, automatic
Completely cut off door and the main spring for shift knob;The shift knob includes pressing section and movable contact, and pressing section is located at
Outside housing, movable contact rear end is provided with convex portion, and main spring is sheathed on movable contact side surface, and pressing section is engaged with projection;Institute
State housing and be provided with the first cavity volume and the second cavity volume, the first binding post and second for being parallelly mounted to housing side is provided with housing
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, the second binding post
End is provided with the second contact site that can be conductively connected with convex portion, and the second contact site is movable contact, convex in the inwall of the second cavity volume
Portion and main spring are respectively positioned in the second cavity volume;The automatic isolation door includes line traffic control, assembly pulley and opening with resetting-mechanism
Close door, movable contact be connected by the cooperation of assembly pulley and line traffic control with open and close door indexing, the open and close door be located at the first cavity volume with
Between second cavity volume;Movable contact controls the keying of open and close door by pullling line traffic control;
When shift knob pushes on movable contact moves forward and promotes main spring to compress, movable contact is pulled open described by line traffic control
Open and close door, movable contact front end are pressed on the first contact site, and the convex portion on movable contact compresses the of the second binding post of contact
Two contact sites, the second contact site, convex portion, the front end of movable contact and the first contact site are sequentially communicated;
When shift knob resets, the second contact of second binding post is left in the convex portion on the movable contact
Portion, open and close door resets and closed, and switches off.
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.
Preferably, the chute for open and close door telescopic slide is provided with the housing, the resetting-mechanism of open and close door includes resetting
Spring, back-moving spring are located in chute and press on one end of open and close door.
Preferably, second contact site is provided with the inclined-plane of movable contact rear end.
Preferably, second contact site is in the becket with inclined-plane, and the inclined-plane of becket is towards movable contact rear end.
Preferably, the shift knob direction is horizontally disposed with.
Preferably, door is symmetrically completely cut off automatically on shift knob centre mirror picture provided with two altogether in the housing.
Preferably, the relative side of described two open and close doors is equipped with sealing strip.
Preferably, the open and close door bottom is provided with spacing bottom plate, and sealing is provided between the spacing bottom plate and chute bottom wall
Circle.
Preferably, the pressing section of the projection and shift knob is equipped with inclined-plane.
Compared with prior art, the juice extractor of the safety switch waterproof of above-mentioned technical proposal is employed, is had following beneficial
Effect:
First, using the juice extractor of safety switch waterproof of the invention, there is the projection press-in bottom and if only if on jar sleeve
When in the groove on seat slot, safety switch could smoothly start, and realize the rotation of motor, therefore safety switch when in use can
Enough ensure the installation site of jar in place, application method is correct.
2nd, safety switch is located in the groove of base slot, and convex portion is located at the bottom of jar sleeve, therefore only stirs
Mixing cup and pressing completely can open when being pressed onto bottom, and safety switch is not easy to be stirred with foreign object by user, safe.
3rd, the safety switch in juice extractor, effectively barrier liquid and steam can be invaded by completely cutting off door automatically
In juice extractor circuit, when shift knob, in the case where not stressing, main spring ejects shift knob, and open and close door is by reset machine
The effect ejection of structure, the first cavity volume and the isolation of the second cavity volume are come, effectively prevent steam or liquid from entering the first binding post
In its first contact site, the isolation completely of the circuit in safety switch is come, ensure before shift knob presses, on-off circuit
In absolute off-state, the first contact site is in completely enclosed state, and whole socket is in cold state, even if there is liquid
Body enter also will not safety switch damage, avoid short circuit and burn.
The projection of jar pushes and during by the pressing portion of inclined-plane or cambered surface pull switch button, before shift knob is pressurized
During shifting, main spring is compressed, and movable contact follows shift knob together to advance and drives open and close door to beat by line traffic control and assembly pulley
Open, open and close door compressing resetting-mechanism is simultaneously opened, and movable contact is contacted the first contact site of the first binding post, simultaneously living
Second contact site of the binding post of protrusions contact second of moving contact, the first binding post and the second binding post connect by first
The effect of contact portion-contact site of movable contact-the second, which is realized, to be electrically connected, and rotates electrical power, and juice extractor, which is started working, to be run.
Brief description of the drawings
Fig. 1 is the structural representation of the juice extractor of safety switch waterproof of the present invention;
Fig. 2 is the structural representation of the juice extractor of safety switch waterproof of the present invention;
Fig. 3 is the structural representation of the juice extractor of safety switch waterproof of the present invention;
Fig. 4 is the partial enlarged drawing at A in Fig. 2;
Fig. 5 is the partial enlarged drawing at B in Fig. 3;
Fig. 6 is the sectional view of safety switch in embodiment 1 (safety switch is off);
Fig. 7 is the sectional view of safety switch in embodiment 1 (safety switch is in closure state);
Fig. 8 is the sectional view of automatic isolation door in embodiment 1 (safety switch is off);
Fig. 9 is the sectional view of automatic isolation door in embodiment 1 (safety switch is in closure state);
Figure 10 is the connection diagram of the first contact site and movable contact (normal condition) in embodiment 1;
Figure 11 is the connection diagram of the first contact site and movable contact (overload) in embodiment 1;
Figure 12 is the sectional view of safety switch in embodiment 2 (safety switch is in closure state);
Figure 13 is the structural representation of the second contact site in embodiment 2.
Reference:1st, safety switch;10th, the first binding post;100th, the first contact site;1000th, end;1001st, arc
Shape contact portion;1002nd, kink;11st, the second binding post;110th, the second contact site;20th, line traffic control;21st, open and close door;210th, reset
Spring;211st, chute;212nd, spacing bottom plate;213rd, sealing ring;214th, sealing ring;215th, sealing strip;22nd, assembly pulley;3rd, switch
Button;30th, main spring;31st, movable contact;310th, convex portion;4th, base;40th, slot;41st, groove;5th, jar;50th, sleeve;
51st, projection.
Embodiment
The present invention is described further below in conjunction with the accompanying drawings.
Embodiment 1:
A kind of juice extractor of safety switch waterproof as shown in Fig. 1 to 11, including base 4, motor, safety switch and stirring
Cup 5, motor is located in base 4, and the bottom of jar 5 is provided with sleeve 50, and base 4 is provided with the slot 40 coordinated with sleeve 50, slot
40 are provided with groove 41, and safety switch is located in groove 41, sleeve 50 be externally provided with for depressing when can promote the projection of safety switch
51, safety switch is connected with motor.
In the groove 41 of the slot 40 of base 4, safety switch is not easy by finger or club extruding for the position of safety switch,
Staff, which keeps away to touch, causes motor to open the threat brought, greatly improves security.
Secondly as safety switch in groove 41, has and if only if the projection 51 on the sleeve 50 of jar 5 is pressed into base
When in the groove 41 on 4 slots 40, safety switch could smoothly start, and realize the rotation of motor, therefore safety switch is using
When can ensure the installation site of jar in place, application method is correct.
Safety switch in the present embodiment includes housing 1, the automatic isolation door of 3, two pairs of shift knob and for switching
The main spring 30 of button, the automatic door that completely cuts off is on the center specular of shift knob 3.
Shift knob 3 includes pressing section and movable contact 31, and pressing section is located at outside housing 1, and the rear end of movable contact 31 is provided with
Convex portion 310, main spring 30 are sheathed on the side surface of movable contact 31.
Housing 1 is provided with the first cavity volume and the second cavity volume, and the first terminals for being parallelly mounted to housing side are provided with housing 1
Son 10 and second binding post 11, 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 the
In one cavity volume, the end of the second binding post 11 is provided with the second contact site 110 that can be conductively connected with convex portion 310, the second contact site
110 are located at the inwall of the second cavity volume, and movable contact 31, convex portion 310 and main spring 30 are respectively positioned in the second cavity volume.
Automatic isolation door includes line traffic control 20, assembly pulley 22 and the open and close door 21 with resetting-mechanism, and movable contact 31 is logical
The cooperation for crossing assembly pulley 22 and line traffic control 20 is connected with the indexing of open and close door 21, open and close door 21 be located at the first cavity volume and the second cavity volume it
Between;Movable contact 31 controls the keying of open and close door by pullling line traffic control 20.
The chute 211 for the telescopic slide of open and close door 21 is provided with housing, the resetting-mechanism of open and close door 21 includes back-moving spring
210, back-moving spring 210 is located in chute and presses on one end of open and close door 21, and open and close door 21 can back and forth be slided in chute 211
It is dynamic, similar to gate or push, back-moving spring 210 is that open and close door 21 provides the elastic force resetted.
As shown in Figure 6 and Figure 8, when shift knob 3, in the case where not stressing, main spring 30 ejects shift knob 30, opens
Door 21 is closed to be ejected by the effect of back-moving spring 210, the open and close doors of both sides is closed and compressed to middle part, by the first cavity volume and
The isolation of second cavity volume is come, and is effectively prevented steam or liquid from entering in the first binding post 10 and its first contact site 100, is made out
The isolation completely of circuit inside the Pass is come, and is ensured before shift knob presses 3 times, on-off circuit is in absolute off-state, and first connects
Contact portion 100 is in completely enclosed state.
As shown in figures 7 and 9, when jar 5 is pressed downward, what projection 51 on jar 5 extruded shift knob 3 presses pressure
Portion, when the compression of shift knob 3 moves forward, main spring 30 is compressed, and movable contact 31 follows shift knob 3 together to advance and passes through line
Control 20 and assembly pulley 22 drive open and close door 21 to open, and open and close door 21 is oppressed back-moving spring 210 and opened to both sides, and middle part forms one
The individual passage passed through for movable contact 31, movable contact 31 is set to contact the first contact site 100 of the first binding post 10, together
When movable contact 31 convex portion 310 contact the second contact site 110 of the second binding post 11, the first binding post 10 and second connects
Line terminals 10 realize and are electrically connected that motor rotates by the effect of first the second contact sites of contact site 100- movable contacts 31- 110,
Realize the juice-extracting process of jar.
Second contact site 110 is provided with the inclined-plane of the rear end of movable contact 31, the second contact site 110 can increase its with it is convex
The contact area in portion 310, bad phenomenon is effectively avoided contact with, improve security.
The direction of shift knob 3 upward, then when there is liquid to come in, by Action of Gravity Field can directly by shift knob 3 with
The gap of second cavity volume is entered in the second cavity volume, and then enters the assembly pulley 22 of automatic isolation door and the sky of line traffic control 20
In, and threaten the first contact site 100 in the first cavity volume.
Therefore, the direction of shift knob 3 is horizontally disposed with, and liquid can be made to be not easy directly to be entered the second appearance by Action of Gravity Field
Intracavitary.
Two relative sides of open and close door 21 are equipped with sealing strip 215.When open and close door closes, sealing strip 215 can have
The seal of the raising open and close door of effect, prevents liquid and steam from being entered by the second cavity volume in the first cavity volume.
The bottom of open and close door 21 is provided with spacing bottom plate 212, and sealing ring is provided between spacing bottom plate 212 and chute 211 bottom wall
213, the pressure applied by back-moving spring 210 to spacing bottom plate 212, spacing bottom plate 212 compresses sealing ring 213, improves airtight
Property and water proofing property.
Line traffic control 20 in the present embodiment is located at the position of convex portion 310 in the exit in the second cavity volume, therefore is set in exit
Sealing ring 214 is equipped with, when movable contact 31 resets in the presence of the elastic force of main spring 30, convex portion 310 is pressed in sealing ring
214, effectively avoid the steam in the second cavity volume from entering in assembly pulley 22 and the cavity at the place of line traffic control 20.
At the above three seal (sealing strip 215, sealing ring 213 and sealing ring 214) be shift knob 3 be in not by
The elastic force effect of power state, main spring 30 and back-moving spring 210 is compressed seal, so as to play sealing effectiveness.
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 31
Folding part 1002;End 1000 is located at the both ends of the first contact site 100 and fixed with the inside of housing 1, and kink 1002 is located at arc
Between contact 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, when motor internal fault goes out
When existing short-circuit, the circuital current in safety switch increases suddenly, and the temperature rapid increase of the first contact site 100, therefore sets note
Alloy is recalled it is possible to prevente effectively from short circuit influences on motor, safety switch and complete machine.
As shown in Figure 10 and Figure 11, when the power for switching vigour part is excessive or overloads, pass through in the first contact site 100
Electric current is larger, and 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, because
This 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 with movable contact 31
And disconnected with movable contact 31, now switch is off, and avoids being overloaded with juice extractor, ensures security.
Embodiment 2:
As shown in Figure 12 and Figure 13, difference of the present embodiment with respect to embodiment 1 is:Second contact site 110 is in band inclined-plane
Becket, the inclined-plane of becket is towards the rear end of movable contact 31, and in a ring, movable contact 30 is round table-like for convex portion 310.
Its corresponding effect is as follows:First, the annular chamfer of becket forms a conical surface, and the second contact site 110 can be with
Increase its contact area with convex portion 310, effectively avoid contact with bad phenomenon, improve security.
Secondly, the cone match annular protrusion 310 of becket, convex portion 310 can be made concentric with becket, ensure the two
Concentric rate, the top of contact is accurately directed at the arc contact portion 1001 of the first contact site 100, avoid producing during misalignment
Loose contact.
Make the preferred embodiment of the present invention above, do not depart from original of the invention for the person of ordinary skill of the art
On the premise of reason, some variations and modifications can also be made, these also should be regarded as protection scope of the present invention.