CN102191894B - Door lock assembly - Google Patents
Door lock assembly Download PDFInfo
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- CN102191894B CN102191894B CN201010121864.0A CN201010121864A CN102191894B CN 102191894 B CN102191894 B CN 102191894B CN 201010121864 A CN201010121864 A CN 201010121864A CN 102191894 B CN102191894 B CN 102191894B
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- cam
- slide block
- dog
- shell fragment
- gate stop
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Abstract
The invention discloses a door lock assembly. The invention is characterized in that: the door lock assembly comprises a door hook with a first through groove, a cam device which comprises a first convex jaw and a second convex jaw and can be installed rotatably in a housing body, wherein when the second convex jaw is pushed by the door hook, the second convex jaw and the first convex jaw rotate simultaneously and the first convex jaw is embedded into the first through groove of the door hook after rotating across a certain angle, and a slide block which can be installed movably; the slide block is utilized for limiting the rotation of the cam; the door lock has a contact with the slide block prior to contacting the cam; and the slide block is pushed by the door lock to move away from the cam, wherein the slide block limits a cam rotation through a contact of the slide block and the cam, and when the slide block and the cam are separated, the limitation to the cam rotation is released. The door lock assembly of the invention is especially suitable for being utilized as a door lock device of a household electrical appliance.
Description
Technical field
The present invention relates to a kind of door lock assembly.Particularly relate to the door lock assembly that a kind of household electrical appliance use.
Background technology
A lot of household electrical appliance (as dish-washing machine, micro-wave oven, cylinder clothing machine etc.) need to install door lock.When it runs, door lock is pinned, after it has run, by door-lock opening.
For different household electrical appliance, different requirements is had to its door lock.Such as roller washing machine, its door lock will have the function switching on and off washing machine circuit.In order to prevent maloperation, when door of washing machine is opened, even if press start button, washing machine also can not be activated, because when door of washing machine is opened, washing machine circuit can be arranged to off-state by door lock assembly.Only press start button when door of washing machine is closed, door lock assembly just can connect washing machine circuit, starts washing machine.
Along with the development of household electrical appliance and the change of environment for use, what time existing household electrical appliance door latch structure needs below existing is improved: 1, when the door enable possition of household electrical appliance, the door lock assembly of household electrical appliance may by people for pushing locking-in state, door lock assembly fault will be caused like this, could use after repairing.2, its door handle to be extruded, press or be rotated from the portion outdoors of household electrical appliance, just can open domestic appliance door, and domestic appliance door can not be pushed open from household electrical appliance inner chamber.3, after can not applying a predetermined thrust or pulling force to domestic appliance door, do not need to carry out any additional move (as extruding, pressing or rotary washing machine door handle) to door of washing machine handle, door lock of washing machine will be opened.4, when opening and closing domestic appliance door, in operating process, user feels not steady.
Summary of the invention
The object of the invention is to overcome deficiency of the prior art, a kind of door lock assembly can opening appliance door from household electrical appliance inside is provided.
For realizing above object, the present invention is achieved through the following technical solutions:
Door lock assembly, is characterized in that, comprises gate stop, gate stop is provided with the first groove;
Cam, it has the first dog and the second dog, and cam being rotatable ground is installed; Second dog rotates with the first dog when promoting by gate stop simultaneously, and after rotation one angle, in the first groove of the first dog embedding gate stop;
Slide block, slide block is installed movably, and can rotate to block cam thus to limit cam with cam contact;
When slide block is in the position of restriction cam rotation, slide block is positioned at gate stop towards the second dog motion to promote in the course of the second dog, to make gate stop first contact slipper promote slide block and move before contact second dog, slide block is separated with cam, thus removes the restriction to cam;
Stopping means, when slide block is in the position of restriction cam rotation, slide block is limited in this position by stopping means; When needs moving slider, stopping means can remove the restriction to slide block.
Door lock assembly in the present invention, slide block is utilized to block cam, first must promote slide block and remove restriction to cam to make it before actuating cam rotates, when therefore can prevent gate stop from not inserting in housing, and when using the elongate articles such as screwdriver or pencil to insert in housing, door lock is arranged to shut the gate state, door lock damage or malfunctioning can be prevented.
During use, can be arranged on appliance door by gate stop, other component are arranged in electric appliance casing, or gate stop and other module position exchange and also can.
Preferably, described stopping means is the first elastic device, and the first elastic device is connected with slide block; When slide block moves, the first elastic device produces elastic force, the position that this elastic force can make slide block get back to can to limit cam to rotate.
Preferably, also comprise Control Component, described Control Component is used for locking cam after cam turns an angle, the rotation of restriction cam.
Preferably, described Control Component comprises control cam, controls cam top and is provided with back shaft, and controlling cam can rotate around back shaft, and when control cam does not reply the position before rotation after rotation, cam cannot rotate.
Preferably, control cam top and rotating bent axle is installed; Connecting rod first end is connected with bent axle; Second end is connected with the second dog, and first end is all the time higher than the second end;
At cam when rotating by gate stop promotes, bent axle rotates towards a direction, remains on this position after crank rotation certain angle;
After controlling cam bottom and the equidirectional rotation of bent axle, restriction cam makes it rotate.
Preferably, remain on this position after bent axle turns an angle towards a direction by the second elastic device, when bent axle rotates in the opposite direction, the second elastic device produces elastic force, and this elastic force increases with crank rotation distance and increases.
Preferably, described control cam is provided with the relative lug in two positions, two lugs respectively arrange one chute, and crankshaft two end is installed in one chute respectively.
Preferably, also comprise gauge tap, gauge tap comprises shell fragment and lower shell fragment, connects the control circuit of electrical equipment when upper shell fragment contacts with lower shell fragment, disconnects the control circuit of electrical equipment when upper shell fragment is separated with lower shell fragment;
Control cam top and be provided with push rod, before control cam lower rotational, push rod boosts shell fragment makes it be separated with lower shell fragment; After control cam lower rotational, push rod removes the thrust to upper shell fragment, and upper shell fragment contacts with lower shell fragment.
Preferably, the driven unit that can promote to control cam lower rotational is also comprised.
Preferably, described driven unit comprises solenoid and piston, piston is installed in solenoid, the conducting channel around piston is provided with in solenoid, conducting channel produces the electric current of different directions according to appliances power source button state, piston adopts electromagnetic material to make, and piston one end is stretched out outside solenoid and is connected with control cam bottom.
Preferably, described slide block comprises two teeth, and two teeth are connected by transverse slat, and have gap between two teeth, this gap can hold the first dog; First dog is provided with boss; Be positioned at when transverse slat contacts with boss above boss and limit cam rotation.
Preferably, the first described elastic device is the one in U-shaped spring, torsion spring or Compress Spring.
Preferably, also comprise the housing of other component that can hold except gate stop, housing is provided with the opening that gate stop can be allowed to insert; Insert the course in object from opening at gate stop, set gradually slide block and second dog.
Present invention also offers a kind of door lock assembly, it is characterized in that, comprise
Gate stop, gate stop is provided with the first groove;
Housing, housing is provided with the opening allowing gate stop to insert;
Cam, it has the first dog and the second dog, and cam being rotatable ground is installed; Second dog rotates with the first dog when promoting by gate stop simultaneously, and after rotation one angle, in the first groove of the first dog embedding gate stop;
Slide block, slide block is installed movably, and can rotate to block cam thus to limit cam with cam contact; When slide block is in the position of restriction cam rotation, slide block is positioned at gate stop towards the second dog motion to promote in the course of the second dog, to make gate stop first contact slipper promote slide block and move before contact second dog, slide block is separated with cam, thus removes the restriction to cam.
First elastic device, first elastic device one end is connected with slide block, and the other end is connected in housing;
Control cam, control cam top and be provided with back shaft, controlling cam can rotate around back shaft; Control cam top and rotating bent axle is installed;
Connecting rod first end is connected with bent axle; Second end is connected with the second dog, and first end is all the time higher than the second end; Second elastic device one end is connected with bent axle, and the other end is fixed on enclosure interior;
Also comprise gauge tap, gauge tap comprises shell fragment and lower shell fragment, connects the control circuit of electrical equipment when upper shell fragment contacts with lower shell fragment, disconnects the control circuit of electrical equipment when upper shell fragment is separated with lower shell fragment;
Control cam top and be provided with push rod, before control cam lower rotational, push rod boosts shell fragment makes it be separated with lower shell fragment; After control cam lower rotational, push rod removes the thrust to upper shell fragment, and upper shell fragment contacts with lower shell fragment.
The present invention has beneficial effect:
When 1, can prevent gate stop from not inserting in housing, and when using the elongate articles such as screwdriver or pencil to insert in housing, door lock is arranged to shut the gate state, door lock damage or malfunctioning can be prevented; 2, all door can be opened from electrical equipment is inside and outside; 3, to open the door and in door closing procedure, each component working is steady, good hand touch; 4, compact conformation, easy to manufacture; 5, when door lock assembly is not locked, the control circuit of electrical equipment can be made to be in off-state; Even if the elastic force of 6 springs is less, also firmly appliance door can be pinned.
Accompanying drawing explanation
Fig. 1 is door lock assembly surface structure schematic diagram;
Fig. 2 is that the structure of door lock assembly splits schematic diagram;
Fig. 3 is the housing interior structure top view removing upper cover;
Fig. 4 is gate stop structural representation;
Fig. 5 is slide block structure schematic diagram;
Fig. 6 is the structural representation after slide block in Fig. 5 turns over turnback;
Fig. 7 is cam structure schematic diagram;
Fig. 8 is the structural representation after cam rotates 90 degree along its axle;
Fig. 9 is for controlling cam structure schematic diagram;
Figure 10 is bent axle schematic diagram;
Figure 11 is the lateral view after the assembling of cam, connecting rod, extension spring, control cam and driven unit;
Figure 12 is cam, connecting rod, control cam, extension spring, the upper shell fragment of control circuit, lower shell fragment connection status schematic diagram;
If Figure 13 is structure cross-sectional schematic of the present invention;
Figure 14 is the top view of door lock assembly;
Figure 15 is that gate stop inserts the interior beginning of housing and the A-A sectional view in Figure 14 during shoe contact;
Figure 16 is that gate stop inserts the interior beginning of housing and the B-B sectional view in Figure 14 during shoe contact;
A-A sectional view in Figure 14 when Figure 17 is half left and right in gate stop insertion housing;
B-B sectional view in Figure 14 when Figure 18 is half left and right in gate stop insertion housing;
Figure 19 be door lock bar up but access failure power supply time Figure 14 in A-A sectional view;
Figure 20 be door lock bar up but access failure power supply time Figure 14 in B-B sectional view;
Figure 21 be door lock pin and control circuit connect time Figure 14 in A-A sectional view;
Figure 22 be door lock pin and control circuit connect time Figure 14 in B-B sectional view.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail:
Fig. 1 is door lock assembly surface structure schematic diagram.As shown in Figure 1, door lock assembly comprises gate stop 100 and housing 200.Gate stop 100 being provided with the first groove 101, first groove 101 is groove.Gate stop 100 is arranged on face 102.Panel 102 can be arranged on the door of household electrical appliance (as roller washing machine etc.).
Housing 200 comprises body 202 and upper cover 203.Upper cover 203 is arranged on body 202 upper end, and upper cover 203 and body 202 form the cavity (not marking in figure) that can hold functional unit (205 shown in Fig. 2).Body 202 is provided with opening 201.Gate stop 100 can insert in housing 200 from opening 201.
When below explaining door lock assembly operating principle and each component effect, be all arranged on appliance door with panel 102, it is example explanation that housing 200 is arranged in electrical equipment main body.Gate stop 100 also can be directly installed on appliance door, and without the need to using panel 102.
Fig. 2 is the parts broken away view of door lock assembly structure.As shown in Figure 2, door lock assembly structure comprises gate stop 100, body 202, functional unit 205 and upper cover 203.Functional unit 205 can be arranged in body 202, and upper cover 203 is enclosed in the inside.Functional unit 205 comprises cam 300, slide block 400, U-shaped spring (501,502), controls cam 600, bent axle 603, extension spring 700, connecting rod 800 and driven unit 900.
Cam 300 is provided with the first dog 301 and the second dog 302.Second dog 302 is positioned at below the opening 201 of housing.Cam 300 is provided with axle 303, axle 303 supporting cam wheel 300.Cam 300 also can rotate around axle 303 in housing 200.Second dog 302 is provided with fixed axis 304, for connecting connecting rod 800.When the second dog 302 promotes by gate stop 100, cam 300 rotates around axle 303.After cam 300 turns an angle, the first dog 301 embeds in the first groove 101 of gate stop 100, and the first dog 301 catches on gate stop 100.Before the first dog 301 does not rotate backward, the first dog 301 can catch on gate stop 100 makes it cannot extract out outside housing 200.As previously mentioned, gate stop 100 can insert in housing 200 from opening 201, and the second dog 302 is arranged in the course of gate stop 100 below opening 201.
Slide block 400 is arranged on housing 200 inner opening place movably, and can contact to block cam 300 with cam 300 and make it rotate.Slide block 400 is arranged on gate stop 100 and inserts in the course after in housing 200, and before gate stop 100 contacts the second dog 302, first contact slipper 400 also promotes slide block 400 and moves, and slide block 400 is separated with cam 300.
The present invention uses two U-shaped springs (501,502), each U-shaped spring (501,502) one end be arranged on slide block 400 slot in (see the slot 403 (403A in Fig. 8,403B)), it is inner that the other end is fixed on housing 200.When gate stop 100 is separated with housing 200, U-shaped spring (501,502) produces a pretightning force to slide block 400, makes slide block 400 prop up cam 300, and cam 300 can not be rotated.In the process of gate stop 100 insertion opening 201, first gate stop 100 contacts with slide block 400, promotes slide block 400.But slide block 400 is subject to the obstruction that U-shaped spring (501,502) produces elastic force by compression, and slide block 400 can not move.Along with the further insertion of gate stop 100, the thrust of gate stop 100 pairs of slide blocks 400 increases, and overcome the elastic force of U-shaped spring (501,502), gate stop 100 promotes slide block 400 makes it be separated with cam 300, and release cam 300, cam 300 now can rotate.
Control cam 600 both sides and be provided with two corresponding back shafts (601A, 601B) of position, controlling cam 600 can rotate around back shaft (601A, 601B).Control cam 600 top and be also provided with two lugs (602A, 602B), each lug is respectively arranged with one chute 6021 (only illustrating in figure).Control cam 600 top and be provided with push rod 604, for being switched on or switched off gauge tap.The two ends of bent axle 603 are plugged in one chute respectively also can rotate in chute.
One end of connecting rod 800 is hung on bent axle 603, and the other end is hung on the fixed axis 304 of cam 300.Second dog 302 of cam 300 rotates, and pulls bent axle 603 to rotate by connecting rod 800.The effect of connecting rod 800 connects cam 300 and controls cam 600.
Bent axle 603 is provided with hook 701.Extension spring 700 one end is connected with hook 701, and it is inner that the other end is fixed on housing 200 by pin 702.
The pulling force of extension spring 700 acts on bent axle 603 by hook 701, bent axle 603 again by pull transfer on connecting rod 800, by connecting rod 800, pulling force is finally passed to cam 300, produces and makes cam 300 clockwise or the torque of turning anticlockwise.
Be provided with gauge tap in housing 200, gauge tap is for being switched on or switched off the control circuit of electrical equipment.Illustrate only the lower shell fragment 904 of gauge tap in Fig. 2, the structure of gauge tap describes in detail later (comprising shell fragment 903).Control circuit described in the present invention starts or stops work for what control household electrical appliance.
The driven unit 900 that can promote to control cam 600 rotation is also provided with in housing 200.Driven unit 900 with control cam 600 bottom is connected, and can promote control cam 600 bottom move.Be arranged in housing 200 owing to controlling cam 600 top by the support of two back shafts (601A, 601B), be subject to driven unit 900 in bottom when promoting, controlling cam 600 will with two back shafts (601A, 601B) for axle rotates.
The housing 200 be illustrated in figure 3 in the present invention removes the top view after upper cover 203.The A/F of housing is W1.Extension spring 700 is positioned at the axially middle part controlling cam 600, and its front hook 703 hooks on hook 701, and links up with 701 and catch on the bent axle 603 controlled on cam 600, and rear hook 704 hooks on pin 704, and it is inner that pin 704 is fixed on housing 200.Upper shell fragment 903 is positioned at the left side (or side) of the axis controlling cam 600.Extension spring 700 and upper shell fragment 903 are controlling axially installing side by side of cam 600, and the axial length controlling cam 600 can make extension spring 700 apply pulling force by hook 701 to control cam 600, and its push rod 604 can be made to move shell fragment 903 when controlling the rotation of cam 600.The axis controlling cam 600 refers to the axis of back shaft (601A, 601B), namely in a top view, and the direction of self-supporting axle 601A to back shaft 601B.
As can be seen from the opening 201 in Fig. 3, because there is slide block 400 to pin cam 300, promotes the second dog 302 if used in pencil or screwdriver insertion opening 201, the second dog 302 cannot be promoted.That is, when the door enable possition of household electrical appliance, the door lock assembly of household electrical appliance can not when gate stop 100 does not insert in housing 200 by people for pushing pass door state.
Be illustrated in figure 4 gate stop 100 structural representation, gate stop 100 arranges on face 102, and gate stop 100 being provided with the first groove 101, first groove 101 is groove.First groove 101 both sides have cell wall (1011,1012).The width of gate stop 100 is W2.The width W 2 of gate stop 100 is less than the width W 1 of opening 201.Its concrete numerical value is arranged to be needed to make gate stop 100 also can extract out outside housing 200 in insertion opening 201, when also needing to guarantee that gate stop 100 inserts in housing 200, can promote slide block 400 and make it be separated with cam 300.
Fig. 5 is the structural representation that slide block 400 is detailed.As shown in Figure 5, slide block 400 is provided with two teeth (402,404), and two teeth (402,404) are connected by transverse slat 405.Have gap L 2 between two teeth (402,404), this gap L 2 is greater than the axial width L1 (as shown in Figure 8) of the first dog 301, can be contained between two teeth (402,404) to make the first dog 301.More easily promote slide block 400 for making gate stop 100 move and reduce stuck phenomenon, the end (4021,4031) that two teeth (402,404) contact with gate stop 100 is set to arc.During door lock opening, transverse slat 405 is positioned at boss 305 (shown in Fig. 7, Fig. 8) top of cam 300 and contacts with boss 305, because transverse slat 305 is positioned in the path circumscribed of boss 305, therefore, transverse slat 405 can stop boss 305 to rotate, and therefore, slide block 400 can pin cam 300.
During use, gate stop 100 inserts in the process in housing 200, and the cell wall (1011 in Fig. 4,1012) of the first groove 101 contacts with two teeth (402,404) of slide block 400 respectively, promotes slide block 400 and makes it be separated with cam 300.
Fig. 6 is the structural representation after slide block 400 in Fig. 5 turns over turnback.As shown in Figure 6, tooth 402 is provided with slot 403A; Tooth 404 is provided with slot 403B.U-shaped spring 502 one end is inserted in slot 403A, and it is inner that the other end is fixed on housing 200.U-shaped spring 501 one end is inserted in slot 403B, and it is inner that the other end is fixed on housing 200.
Fig. 7 is the structural representation that cam 300 is detailed.As shown in Figure 7, cam 300 has the first dog 301 and the second dog 302.Cam 300 is provided with axle 303, and axle 303 is divided into two sections (303A, 303B), apportion cam 300 both sides.First dog 301 and the second dog 302 are arranged along axle 303 circumferencial direction.When both the first dog 301 and the second dog 302 one rotates around axle 303, another also can rotate around axle 303.Second dog 302 is provided with fixed axis 304, for connecting connecting rod (not shown).
Cam 300 is also provided with boss 305.When door is in opening, slide block 400 contacts with cam 300 and boss 305 is positioned at transverse slat 405 (as shown in Figure 5, Figure 6) below, and transverse slat 405 is positioned in the path circumscribed of boss 305.Therefore, before slide block 400 is not mobile, slide block 400 can block cam 300 makes it rotate; After slide block 400 moves and is separated with cam 300, slide block 400 removes the restriction to cam 300, and now cam 300 can rotate.
Fig. 8 is that the cam 300 in Fig. 7 rotates the structural representation after 90 degree along axle 303.Cam 300 is provided with inner groovy 306 as shown in Figure 8, and inner groovy 306 axially has a degree of depth along axle 303.In the process that cam 300 rotates, connecting rod 800 (shown in Fig. 2) can move in inner groovy 306.Arrange inner groovy 306, cam 300 both can have been allowed to turn an angle in scope and can not mutually stop with connecting rod 800, connecting rod 800 can stop cam 300 again after cam 300 turns an angle, and makes it not be rotated further.
First dog 301 has axial width L1, and this width L1 is less than the gap L 2 (as shown in Figure 5) between two teeth (402,404) of slide block 400, can be contained between two teeth (402,404) to make the first dog 301.
When the second dog 302 promotes by gate stop 100, cam 300 rotates around axle 303 (303A, 303B).After cam 300 turns an angle, the first dog 301 embeds in the first groove 101 of gate stop 100, and the first dog 301 catches on gate stop 100, and now door is lockable.Before the first dog 301 does not rotate backward, the first dog 301 is sustainable catches on gate stop 100.
What Fig. 8 represented is closes state when the first dog 301 behind the door catches on gate stop 100.
Fig. 9 is for controlling cam 600 structure detailed maps.As shown in Figure 9, control cam 600 top and be provided with two back shafts (601A, 601B).Two back shafts (601A, 601B) are for support and control cam 600.
Control cam 600 top and be provided with two lugs (602A, 602B).Each lug (602A, 602B) is respectively arranged with one chute 6021 (only illustrating in figure).The two ends of bent axle 603 are plugged in one chute 6021 respectively also can rotate in chute 6021.An inclined-plane 605 is provided with, for limiting bent axle 603 rotational angle range between two lugs (602A, 602B).After bent axle 603 turns an angle, bent axle 603 contacts inclined-plane 605, stops cannot be rotated further by inclined-plane 605.
Figure 10 is bent axle 603 structural representation.As shown in Figure 10, bent axle 603 comprises top 6033 and two ends (6031,6032).Top 6033 has axis 6034.Two ends (6031,6032) are inserted in one chute 6021 respectively.Bent axle 603 has radius r.
Figure 11 is the lateral view after cam 300, connecting rod 800, extension spring 700, control cam 600 and driven unit 900 assembling, is shown specifically the matching relationship between them.As shown in figure 11, the first end 801 of connecting rod 800 is hung on bent axle 603, and the second end 802 is hung on fixed axis 304.First end 801 position is all the time higher than the second end 802, and therefore, connecting rod 800 remains heeling condition.
D point is the crankshaft end center of circle, and C point is center, bent axle top (being axis projections point), and CD length is crank throw r.O point is the center of circle of back shaft 601A.
CD length equals OD length.Along with the rotation of bent axle 603, in side view, C point and O point relative position have two states, and one is that C point is positioned at O point left side; Two is because CD length equals OD length, so after bent axle 603 rotates clockwise, C point overlaps with O point.When C point is positioned at O point left side, be subject to connecting rod 800 and extension spring 700 applies External Force Acting jointly as C point, this external force passes to control cam 600 by bent axle 603.The external force that D point is subject to is the pressure (pointing to D point from C point) along CD direction, and therefore it produces counterclockwise torque to the gyroaxis (O point) controlling cam 600.In the present invention, then the thrust of driven unit 900 promotion control cam 600 bottom is less than above-mentioned counterclockwise torque to the clockwise torque that O point produces, and therefore when C point is positioned at O point left side, driven unit 900 cannot promote to control cam 600 and rotate clockwise.When C point overlaps with O point, the direction of pull of connecting rod 800 pairs of bent axles 603 points to D point from C point, and overlap with the axle center D point of back shaft due to C point, the application point of this pulling force is positioned on back shaft axis, and the pulling force that bent axle 603 is subject to connecting rod 800 cannot form the flywheel moment to controlling cam 600.Driven unit 900 to control cam 600 bottom left applied thrust time, controlling cam 600 can rotate clockwise, no longer by the control of bent axle 603.
Figure 12 is cam 300, connecting rod 800, control cam 600, extension spring 700, gauge tap connection status schematic diagram, for being shown in detail the matching relationship of upper shell fragment 903 and lower shell fragment 904 and control cam 600 in gauge tap.As shown in figure 12, gauge tap comprises shell fragment 903 and lower shell fragment 904.Upper shell fragment 903 and lower shell fragment 904 are electrically connected in control circuit.Upper shell fragment 903 and lower shell fragment 904 apportion push rod about 604 both sides.Along with control cam 600 rotates, push rod 604 produces displacement, and therefore push rod 604 can promote shell fragment 903 and moves shell fragment 903 is separated with lower shell fragment 904, and now control circuit disconnects.Even if press the power switch button of control circuit, because control circuit disconnects, therefore electrical equipment cannot start work.After control cam 600 rotates backward, push rod 604 can also remove the thrust to upper shell fragment 903, and upper shell fragment 903 contacts with lower shell fragment 904, now control circuit UNICOM, and now electrical equipment can start work.
Figure 13 is sectional structure schematic diagram of the present invention, for being shown in detail the structure of driven unit 900 and driven unit 900 and the matching relationship controlling cam 600.As shown in figure 13, driven unit 900 comprises solenoid 902, is provided with piston 901 in solenoid 902.The two ends, left and right of solenoid 902 have two windings respectively.Piston 901 end 9011 stretch out solenoid 902 outer with control cam 600 bottom and be connected, piston 901 is made for electromagnetic material.Can produce corresponding electromagnetic force after any one energising in two windings, the piston 901 driving electromagnetic material to make is turned left or right direction moves.When piston 901 moves, it can promote or pull control cam 600 bottom to move.Owing to controlling cam 600 top by two back shaft (601A, 601B) support and spacing, therefore, piston 901 is subject to when promoting or pull in bottom, controlling cam 600 will around two back shaft (601A, 601B) rotate, in rotation process, push rod 604 removes the thrust to upper shell fragment 903 gradually.
Figure 14 is the top view of door lock assembly.As shown in figure 14, A-A hatching line is the hatching line along gate stop center along upper shell fragment 903 bearing of trend in housing 200; B-B hatching line is the hatching line along gate stop center along spring 700 bearing of trend in housing 200.
Figure 15 to Figure 22 is the door lock assembly operating principle schematic diagram in the present invention.
Figure 15 is that gate stop 100 inserts in housing 200 duty just having started to analyse and observe with the A-A along Figure 14 during shoe contact.As shown in figure 15, gate stop 100 inserts in housing 200, starts to contact with slide block 400, and now slide block 400 pins cam 300 cam 300 cannot be rotated.Upper shell fragment 903 boosts and makes it be separated with lower shell fragment 904 by push rod 604, and control circuit is in off-state.
Figure 16 is that gate stop 100 inserts in housing 200 duty just having started to analyse and observe with the B-B along Figure 14 during shoe contact.As shown in figure 16, cam 300 pulls bent axle 603 to make bent axle 603 turn an angle processus aboralis for lug 602 by connecting rod 800.Bent axle 603 connects extension spring 700 by hook 701.Because bent axle 603 is held by connecting rod 800, connecting rod 800 is held by cam 300, and cam 300 had both stopped cannot rotate clockwise by connecting rod 800, cannot rotate counterclockwise again by slide block 400 restriction, therefore, although the pulling force effect that bent axle 603 is subject to extension spring 700 cannot rotate clockwise.
Now, because the C point in Figure 10 is positioned at O point left side, make generation current in solenoid 902 even if switch on power, piston 901 also cannot promote to control cam 600 and rotate, and push rod 604 maintains the thrust to upper shell fragment 903, and control circuit cannot be connected.
Figure 17 be gate stop 100 when inserting half left and right in housing 200 along the working state figure that the A-A of Figure 14 analyses and observe.As shown in figure 17, gate stop 100 continues to move down on the basis of Figure 15, Figure 16, and in moving process, gate stop 100 promotes slide block 400 to the right, and after removing the restriction to cam 300 to slide block 400, cam 300 can rotate.Gate stop 100 continues to move down to contact with the second dog 302 and promote the second dog 302 and rotates counterclockwise, and crosses the dead-centre position of cam 300 gradually.Now, the first dog 301 also rotates counterclockwise rear section and embeds in the first groove 101.The dead-centre position of cam 300, when referring to that connecting rod 800 passes between axle (303A, 303B), is more Specifically when connecting rod 800 center line and axle 303 axes intersect; Now, the pulling force of connecting rod 800 pairs of cams 300 passes the axle 303 of cam 300, so the pulling force of connecting rod 800 pairs of cams 300 cannot make cam 300 rotate.
Promote slide block 400 while gate stop 100 in the present invention moves down to move right.To use the elongate articles such as screwdriver or pencil to stir cam 300, first slide block 400 must be stirred to the right until remove the restriction to cam 300.And because two teeth 401 of sliding fast 400 front ends are separated far away with 402, second dog 302 upper surface of cam 300 is very narrow simultaneously, so only when keeping the thrust to slide block 400, again toward tiltedly lower direction mobile lead pencil or screwdriver are until contact the second dog upper end, ability actuating cam 300 rotates counterclockwise and closes door state.Therefore, as used screwdriver or pencil, be difficult to artificially cam 300 be pushed pass door state.
Now, control cam 300 and do not rotate, therefore push rod 604 maintains the thrust to upper shell fragment 903, and upper shell fragment 903 continues to keep released state with lower shell fragment 904.
Figure 18 be gate stop 100 when inserting half left and right in housing 200 along the working state figure that the B-B of Figure 14 analyses and observe.As shown in figure 18, after gate stop 100 promotes the second dog 302 rotation, drivening rod 800 crosses " dead point " position of cam 300, and now connecting rod 800 can pull cam 300 to rotate.Bent axle 603 rotates clockwise under the pulling force of extension spring 700, be with moving cam 300 to be rotated counterclockwise by connecting rod 800, gate stop 100 is drawn in lock body, now do not need external force to close the door, the pulling force of door lock self can complete action of closing the door, and forms feel of well closing the door.
Now, the C point in Figure 10 is still positioned at O point left side.Therefore, even if switch on power, solenoid 902 is energized, piston 901 also cannot promote to control cam 600 and rotate, and push rod 604 maintains the thrust to upper shell fragment 903, and control circuit cannot be connected.
Figure 19 be gate stop 100 when inserting in housing 200 completely but access failure control circuit time the working state figure analysed and observe along the A-A of Figure 14.As shown in figure 19, gate stop 100 is caught on gradually by the first dog 301 and continues to draw in lock body downwards on the basis of state shown in Figure 17, Figure 18.First dog 301 continues to rotate counterclockwise rear embedding completely in the first groove 101 and is caught on completely by gate stop 100, and appliance door is finally closed and maintains (but not having locked) with certain pulling force, and now door lock is in shut the gate state.
Now, control cam 600 and rotate not yet, therefore push rod 604 maintains the thrust to upper shell fragment 903, and upper shell fragment 903 continues to keep released state with lower shell fragment 904.
Figure 20 be gate stop 100 when inserting in housing 200 completely but access failure control circuit time the working state figure analysed and observe along the B-B of Figure 14.As shown in figure 20, in cam 300 rotation process, bent axle 603 continues to rotate clockwise under the pulling force effect of extension spring 700, till cam 300 to be blocked by housing 200 inside and cannot rotate, now bent axle 603 is just in time attached to (shown in Fig. 9) on the inclined-plane 605 of control cam 600, although there is the pulling force of spring 700 also cannot be rotated further.
Now, the C point in Figure 10 overlaps with O point, and the pulling force of connecting rod 800 pairs of bent axles 603 cannot form the flywheel moment that team controls cam 600, no longer controls the rotation of cam 600, and piston 901 can promote to control cam 600 and rotate.
Figure 21 be gate stop 100 when inserting in housing 200 completely and connect control circuit time the working state figure analysed and observe along the B-B of Figure 14.As shown in figure 21, after pressing control circuit power switch button, switch on power, control circuit sends pulses generation magnetic field to winding on the left of solenoid 902, attract piston 901 to be moved to the left, promote to control cam 600 and rotate clockwise around two back shafts (601A, 601B).Now, now connecting rod 800 is fitted on control cam 600 inclined-plane 605 as shown in Figure 9; Bent axle 603 is controlled cam 600 and is pushed to the angle that overlaps with connecting rod 800 (namely in the lateral view in Figure 11 side-looking direction, the center line of connecting rod 800 and CD line coincident), therefore, the pulling force of connecting rod 800 pairs of bent axles 603 cannot form the torque to controlling cam 600, and now bent axle 603 is in its dead-centre position.Even if there is external force to pull gate stop 100, because connecting rod 800 overlaps with bent axle 603, cannot make crank rotation, state that door lock is in " locking a door ", to open the door by force, only has destruction door lock.
Figure 22 be gate stop 100 when inserting in housing 200 completely and connect control circuit time the working state figure analysed and observe along the A-A of Figure 14.As shown in figure 22, after control cam 600 rotates clockwise, push rod 604 removes the thrust to upper shell fragment 903, and upper shell fragment 903 contacts at contact 905 place with lower shell fragment 904, and control circuit is connected, and electrical equipment is started working.In the present invention, upper shell fragment 903 length is greater than lower shell fragment 904 length, and upper shell fragment 903 is longer than lower shell fragment 904 part and is positioned at above push rod 604, upper shell fragment 903 can be boosted when rotating counterclockwise to make push rod 604, and shell fragment 904 under can not promoting when rotating clockwise.
Before enabling, the right side winding to solenoid 902 sends pulse makes the piston 901 in Figure 21 move right.Control cam 600 is returned to the state of Figure 20.Now, door lock unlocks, if there is enough external force to pull gate stop 100, drive first dog 301 and the second dog 302 rotate clockwise by gate stop 100.In second dog 302 rotation process, pull connecting rod 800, and pull bent axle 603 to rotate counterclockwise by connecting rod 800.Bent axle 603 rotates counterclockwise the elastic force that need overcome extension spring 700 and is stretched.When needing to open the door, the enabling pulling force acted on cam 300 by gate stop 100 depends on extension spring 700 pairs of bent axle 603 pulling force, and extension spring 700 remains unchanged substantially to the direction of pull at bent axle 603; Along with rotating counterclockwise of bent axle 603, angle between the CD line (shown in Figure 11) of connecting rod 800 and bent axle 603 constantly increases, angle between the CD line (shown in Figure 11) of connecting rod 800 and bent axle 603 is less, the enabling pulling force then needed is larger, angle is larger, then the enabling pulling force needed is less.Therefore, its mechanical characteristic is similar to the characteristic of magnetic curves, forms excellent enabling feel.As can be seen from above-mentioned analysis, the pulling force used at closing time is formed jointly by spring 700 and bent axle 603, and just because of the effect of bent axle 603, under same door closing force requires, door lock can use more weak spring.
Pulling force size when opening the door is determined according to the elastic force of extension spring 700, and as being set to 40N, like this, child uses the power of 40N door can be pushed open in electrical equipment inside.
As seen from the above analysis, the door lock assembly in the present invention, during enabling, only need release housing 200 outer by gate stop 100, no matter inside and outside from electrical equipment, all gate stop 100 can be released outside housing 200.During enabling, without the need to extruding from electrical equipment outside its door handle, press or rotate, just door can be opened.
U-shaped spring (501,502) in the present invention can use torsion spring or Compress Spring to replace.
Embodiment in the present invention, only for the present invention will be described, does not form the restriction to right, other equivalent in fact substituting, all in scope that those skilled in that art can expect.
Claims (14)
1. door lock assembly, is characterized in that, comprises gate stop, gate stop is provided with the first groove;
Cam, it has the first dog and the second dog, and cam being rotatable ground is installed; Second dog rotates with the first dog when promoting by gate stop simultaneously, and after rotation one angle, in the first groove of the first dog embedding gate stop;
Slide block, slide block is installed movably, and can rotate to block cam thus to limit cam with cam contact;
When slide block is in the position of restriction cam rotation, slide block is positioned at gate stop towards the second dog motion to promote in the course of the second dog, to make gate stop first contact slipper promote slide block and move before contact second dog, slide block is separated with cam, thus removes the restriction to cam;
Stopping means, when slide block is in the position of restriction cam rotation, slide block is limited in this position by stopping means; When needs moving slider, stopping means can remove the restriction to slide block.
2. door lock assembly according to claim 1, is characterized in that, described stopping means is the first elastic device, and the first elastic device is connected with slide block; When slide block moves, the first elastic device produces elastic force, the position that this elastic force can make slide block get back to can to limit cam to rotate.
3. door lock assembly according to claim 1, is characterized in that, also comprises Control Component, and described Control Component is used for locking cam after cam turns an angle, the rotation of restriction cam.
4. door lock assembly according to claim 3, is characterized in that, described Control Component comprises control cam, control cam top and be provided with back shaft, control cam to rotate around back shaft, when control cam does not reply the position before rotation after rotation, cam cannot rotate.
5. door lock assembly according to claim 4, is characterized in that, controls cam top and is provided with rotating bent axle; Connecting rod first end is connected with bent axle; Second end is connected with the second dog, and first end is all the time higher than the second end;
At cam when rotating by gate stop promotes, bent axle rotates towards a direction, remains on this position after crank rotation certain angle;
After controlling cam bottom and the equidirectional rotation of bent axle, restriction cam makes it rotate.
6. door lock assembly according to claim 5, it is characterized in that, remain on this position by the second elastic device after bent axle turns an angle towards a direction, when bent axle rotates in the opposite direction, second elastic device produces elastic force, and this elastic force increases with crank rotation distance and increases.
7. door lock assembly according to claim 5, is characterized in that, described control cam is provided with the relative lug in two positions, and two lugs respectively arrange one chute, and crankshaft two end is installed in one chute respectively.
8. door lock assembly according to claim 5, it is characterized in that, also comprise gauge tap, gauge tap comprises shell fragment and lower shell fragment, connect the control circuit of electrical equipment when upper shell fragment contacts with lower shell fragment, when upper shell fragment is separated with lower shell fragment, disconnect the control circuit of electrical equipment;
Control cam top and be provided with push rod, before control cam lower rotational, push rod boosts shell fragment makes it be separated with lower shell fragment; After control cam lower rotational, push rod removes the thrust to upper shell fragment, and upper shell fragment contacts with lower shell fragment.
9. door lock assembly according to claim 5, is characterized in that, also comprises the driven unit that can promote to control cam lower rotational.
10. door lock assembly according to claim 9, it is characterized in that, described driven unit comprises solenoid and piston, piston is installed in solenoid, the conducting channel around piston is provided with in solenoid, conducting channel produces the electric current of different directions according to appliances power source button state, and piston adopts electromagnetic material to make, and piston one end is stretched out outside solenoid and is connected with control cam bottom.
11. door lock assemblies according to claim 1, is characterized in that, described slide block comprises two teeth, and two teeth are connected by transverse slat, and have gap between two teeth, this gap can hold the first dog; First dog is provided with boss; Be positioned at when transverse slat contacts with boss above boss and limit cam rotation.
12. door lock assemblies according to claim 2, is characterized in that, the first described elastic device is the one in U-shaped spring, torsion spring or Compress Spring.
13. door lock assemblies according to claim 1, is characterized in that, also comprise the housing of other component that can hold except gate stop, and housing is provided with the opening that gate stop can be allowed to insert; Insert the course in housing from opening at gate stop, set gradually slide block and second dog.
14. door lock assemblies, is characterized in that, comprise
Gate stop, gate stop is provided with the first groove;
Housing, housing is provided with the opening allowing gate stop to insert;
Cam, it has the first dog and the second dog, and cam being rotatable ground is installed; Second dog rotates with the first dog when promoting by gate stop simultaneously, and after rotation one angle, in the first groove of the first dog embedding gate stop;
Slide block, slide block is installed movably, and can rotate to block cam thus to limit cam with cam contact;
When slide block is in the position of restriction cam rotation, slide block is positioned at gate stop towards the second dog motion to promote in the course of the second dog, to make gate stop first contact slipper promote slide block and move before contact second dog, slide block is separated with cam, thus removes the restriction to cam;
First elastic device, first elastic device one end is connected with slide block, and the other end is connected in housing;
Control cam, control cam top and be provided with back shaft, controlling cam can rotate around back shaft; Control cam top and rotating bent axle is installed;
Connecting rod first end is connected with bent axle; Second end is connected with the second dog, and first end is all the time higher than the second end;
Second elastic device one end is connected with bent axle, and the other end is fixed on enclosure interior;
Also comprise gauge tap, gauge tap comprises shell fragment and lower shell fragment, connects the control circuit of electrical equipment when upper shell fragment contacts with lower shell fragment, disconnects the control circuit of electrical equipment when upper shell fragment is separated with lower shell fragment;
Control cam top and be provided with push rod, before control cam lower rotational, push rod boosts shell fragment makes it be separated with lower shell fragment; After control cam lower rotational, push rod removes the thrust to upper shell fragment, and upper shell fragment contacts with lower shell fragment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010121864.0A CN102191894B (en) | 2010-03-11 | 2010-03-11 | Door lock assembly |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010121864.0A CN102191894B (en) | 2010-03-11 | 2010-03-11 | Door lock assembly |
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| CN102191894A CN102191894A (en) | 2011-09-21 |
| CN102191894B true CN102191894B (en) | 2015-07-01 |
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| CN201010121864.0A Expired - Fee Related CN102191894B (en) | 2010-03-11 | 2010-03-11 | Door lock assembly |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104420724B (en) * | 2013-08-23 | 2016-12-28 | 美的集团股份有限公司 | Door lock and the household electrical appliance with this door lock |
| CN104746317B (en) * | 2015-03-31 | 2017-10-27 | 无锡小天鹅股份有限公司 | Laundry facilities |
| CN108570814B (en) * | 2017-03-14 | 2022-09-23 | 伊利诺斯工具制品有限公司 | Door lock |
| CN112498137B (en) * | 2020-11-05 | 2021-08-03 | 南京康尼新能源汽车零部件有限公司 | Protective cover for electric automobile charging connector |
| CN113700383B (en) * | 2021-09-10 | 2022-06-21 | 海信（山东）冰箱有限公司 | Door lock and washing machine |
| CN114541899B (en) * | 2022-03-01 | 2023-09-01 | 无锡轩逸电子科技有限公司 | Door hook connecting mechanism, door lock and electric appliance |
| CN114562166B (en) * | 2022-03-01 | 2024-01-16 | 无锡轩逸电子科技有限公司 | Electrical component for electrical door lock, electrical door lock and electrical appliance |
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| EP1467048A1 (en) * | 2003-04-09 | 2004-10-13 | BITRON S.p.A. | A device for locking and unlocking the door of an electric household appliance |
| EP1469147A2 (en) * | 2003-04-17 | 2004-10-20 | BITRON S.p.A. | A device for locking and unlocking the door of an electric household appliance |
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| EP1467048A1 (en) * | 2003-04-09 | 2004-10-13 | BITRON S.p.A. | A device for locking and unlocking the door of an electric household appliance |
| EP1469147A2 (en) * | 2003-04-17 | 2004-10-20 | BITRON S.p.A. | A device for locking and unlocking the door of an electric household appliance |
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| CN102191894A (en) | 2011-09-21 |
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