CN206091628U - Oven door latch mechanism - Google Patents
Oven door latch mechanism Download PDFInfo
- Publication number
- CN206091628U CN206091628U CN201621073822.3U CN201621073822U CN206091628U CN 206091628 U CN206091628 U CN 206091628U CN 201621073822 U CN201621073822 U CN 201621073822U CN 206091628 U CN206091628 U CN 206091628U
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- China
- Prior art keywords
- suspension hook
- hook
- cam
- lock
- oven door
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Abstract
The utility model discloses an oven door latch mechanism, it includes: the lifting hook, lifting hook drive arrangement, lifting hook drive arrangement and hook connect to the action of lifting hook drive arrangement drive lifting hook makes the lifting hook switch opening between position and the closed position, the lifting hook removes restraining mechanism, when the lifting hook is located closed position, the lifting hook removes restraining mechanism and acts on on the lifting hook to block that the lifting hook removes to the direction of opening the position. The utility model discloses the phenomenon that can avoid the door to use external force to open the door under lock status easily improves the reliability and the factor of safety of its locking.
Description
Technical field
This utility model is related to a kind of lock for oven door mechanism.
Background technology
At present, Fig. 1 is the suspension hook of lock for oven door mechanism in prior art structural representation in the closed position；Work as suspension hook
When operating in closed position, there is larger movable region in suspension hook right direction infinite place, this zone of action can make suspension hook to
The coupling mechanism force of doorframe is not enough, occurs that suspension hook moves to right appearance " unhook " phenomenon in the case where external force is pulled, and baking box hatch door can be drawn by external force
Open, there is hidden danger under this locking state：
1st, when baking box hatch door is subject to larger external force to pull, the doorframe material of suspension hook locking may be deformed, and now hang
Can there is deviation in the tight angle of hook lock, then suspension hook can be made to be acted on easily lateral deviation to the right by oblique component when by external tensile force
Move, right side infinite place.
2nd, this scheme controls the receiving and transmitting signal of microswitch using the circumferential length of cam, and cam is injected plastics material presence
Deformation and up and down tolerance, if cam circumferential length has more one piece, the time of microswitch triggering also will be delayed, can cause suspension hook to
Right many operation a small distance, the position that now suspension hook stops will not be plumbness, but small angle deflection occurs to the right
Phenomenon, when baking box hatch door is firmly pulled, suspension hook is acted on by oblique component, is easier to LRO Lateral Runout to the right, the suspension hook with doorframe
Groove breaks off relations.
If the 3, baking box is toasting food, oven door just can easily be opened under the artificial external force effect of very little, can gone out
Existing potential safety hazard.
The content of the invention
Technical problem to be solved in the utility model is the defect for overcoming prior art, there is provided a kind of oven door lock machine
Structure, it can avoid door from easily using external force to open the phenomenon of door in the locked condition, improve the reliability and safety of its locking
Coefficient.
In order to solve above-mentioned technical problem, the technical solution of the utility model is：A kind of lock for oven door mechanism, it includes：
Suspension hook；
Lift hook driving device, the lift hook driving device is connected with suspension hook, so that lift hook driving device drives suspension hook action,
Suspension hook is set to switch between open and closed positions；
Suspension hook moves constraint mechanism, and when suspension hook is located at closed position, the suspension hook movement constraint mechanism acts on described
On suspension hook, so as to stop that suspension hook is moved to the direction of open position.
Further, the lift hook driving device include making driver part that suspension hook move from from closed position to open position with
The return mechanism for making suspension hook move from open position to closed position.
Further, the driver part includes driving source, cam and push rod, and the driving source is connected with cam drive, with
Toilet states the rotation of driving source driving cam, and the push rod is connected on cam, and the push rod is connected with the suspension hook, the suspension hook
In hinge-like.
The concrete structure that a kind of suspension hook moves constraint mechanism is further provided, the suspension hook movement constraint mechanism includes setting
The tail yoke portion on suspension hook and the cooperation tail yoke portion being arranged on cam are put, when suspension hook is located at closed position, the tail yoke portion
Together with tail yoke portion abutting is coordinated, so as to stop that suspension hook is moved to the direction of open position.
A kind of concrete structure of push rod is further provided, one end of the push rod is connected on cam, the push rod
Bending arm is provided with the other end, during suspension hook is moved from closed position to open position, the bending arm with it is described
Suspension hook is abutted.
Further provide a kind of concrete structure of return mechanism, the return mechanism includes extension spring, the one of the extension spring
End is connected with the suspension hook, and the other end of the extension spring is fixedly installed.
Further for the state for showing door, lock for oven door mechanism also includes door state feedback mechanism, and the door state is anti-
Feedback mechanism includes microswitch, the microswitch being engaged with the switch contact of microswitch is provided with the cam and coordinates bent
Face；When suspension hook is located at closed position, the microswitch coordinates curved surface to touch the switch contact of microswitch；When suspension hook is located at
During open position, the microswitch coordinates curved surface not touch the switch contact of microswitch.
Further, the driving source is motor.
After employing above-mentioned technical proposal, this utility model when suspension hook is in the closed position, using the tail yoke portion of suspension hook
Coordinate the extruding in tail yoke portion spacing to carry out to suspension hook with cam so that suspension hook this position cannot over-deflection to the right,
Reach binding effect so that the door of baking box in off position under, suspension hook will not be skidded off from doorframe, improve its safety coefficient, together
When cause the door of baking box to descend external force effect easily not pull open and cause unnecessary trouble in off position.
Description of the drawings
Structural representations of the Fig. 1 for suspension hook in the lock for oven door mechanism of prior art when in the closed position；
Fig. 2 is structural representation when suspension hook is in the closed position in lock for oven door mechanism of the present utility model；
Fig. 3 is structural representation when suspension hook is in an open position in lock for oven door mechanism of the present utility model；
Fig. 4 is the axonometric chart of suspension hook of the present utility model；
Fig. 5 is the axonometric chart of cam of the present utility model；
Fig. 6 is the company of suspension hook and cam when suspension hook is in the first extreme position in lock for oven door mechanism of the present utility model
Connect schematic diagram；
Fig. 7 is the company of suspension hook and cam when suspension hook is in the second extreme position in lock for oven door mechanism of the present utility model
Connect schematic diagram；
Fig. 8 is the movement locus circle of C points of the present utility model.
Specific embodiment
In order that content of the present utility model is easier to be clearly understood, below according to specific embodiment and with reference to attached
Figure, is described in further detail to this utility model.
As shown in Figure 2-5, a kind of lock for oven door mechanism, it includes：
Suspension hook 1；
Lift hook driving device, the lift hook driving device is connected with suspension hook 1, so that lift hook driving device drives suspension hook 1 to move
Make, suspension hook 1 is switched between open and closed positions；
Suspension hook moves constraint mechanism, and when suspension hook 1 is located at closed position, the suspension hook movement constraint mechanism acts on described
On suspension hook 1, so as to stop that suspension hook 1 is moved to the direction of open position.
As shown in Figure 2,3, the lift hook driving device includes the driving for making suspension hook 1 move from closed position to open position
Part and the return mechanism for making suspension hook 1 move from open position to closed position.
As shown in Figure 2,3, the driver part includes driving source, cam 2 and push rod 3, and the driving source is driven with cam 2
Connection, so that the driving source driving cam 2 is rotated, the push rod 3 is connected on cam 2, the push rod 3 and the suspension hook 1
Connection, the suspension hook 1 is in hinge-like.When being embodied as, an installing plate 10 can be set, suspension hook 1 can be hinged on installing plate 10.
As shown in Figure 2-5, the suspension hook movement constraint mechanism includes the tail yoke portion 11 being arranged on suspension hook 1 and is arranged on
Cooperation tail yoke portion 21 on cam 2, when suspension hook 1 is located at closed position, the tail yoke portion 11 and cooperation tail yoke portion 21 are connected to
Together, move to the direction of open position so as to stop suspension hook 1.This utility model when suspension hook 1 is in the closed position, using hanging
The tail yoke portion 11 of hook 1 and cam 2 coordinate the extruding in tail yoke portion 21 spacing to carry out to suspension hook 1 so that suspension hook 1 this position without
Normal direction right over-deflection, reaches binding effect so that the door of baking box in off position under, suspension hook 1 will not be skidded off from doorframe,
Its safety coefficient is improved, while so that the door of baking box descends in off position external force effect not pull open easily causes unnecessary fiber crops
It is tired.
As shown in Figure 2,3, one end of the push rod 3 is connected on cam 2, and folding is provided with the other end of the push rod 3
Curved boom 31, during suspension hook 1 is moved from closed position to open position, the bending arm 31 is abutted with the suspension hook 1, when
So, during suspension hook 1 is moved from open position to closed position, due to the effect of return mechanism, push rod 3 also can with it is described
Bending arm 31 is abutted together.
As shown in Figure 2,3, the return mechanism includes extension spring 4, and one end of the extension spring 4 is connected with the suspension hook 1, described
The other end of extension spring 4 is fixedly installed, and when being embodied as, the other end of extension spring 4 is fixedly connected on installing plate 10.
As shown in Figure 2,3, lock for oven door mechanism also includes door state feedback mechanism, and the door state feedback mechanism includes micro-
Dynamic switch 5, is provided with the microswitch being engaged with the switch contact of microswitch 5 and coordinates curved surface on the cam 2；Work as suspension hook
1 when being located at closed position, and the microswitch coordinates curved surface to touch the switch contact of microswitch 5；When suspension hook 1 is located at open position
When putting, the microswitch coordinates curved surface not touch the switch contact of microswitch 5.
The driving source can be motor 6, but not limited to this.
In addition, during suspension hook 1 is opened or closed, cam 2 is existing without interference or blocked portion with suspension hook 1 in operation process
As operation is smooth, specific to arrange as follows in order to realize both without interference：
2 points of cam is upper and lower two-layer, and the big curved surface of the Area comparison in top section is that microswitch coordinates curved surface, and it is used
In coordinating with microswitch 5, the little curved surface of the Area comparison in underclad portion is that suspension hook coordinates curved surface, its with coordinate with suspension hook；
As shown in fig. 6, when suspension hook 1 is in the first extreme position, for the tail yoke portion 11 and the cam 2 that avoid suspension hook 1 from increasing
Suspension hook coordinate curved surface to produce interference, with limiting point A (straight line parallel with D word axis hole cathetus sections and cam arc section phase
The point of contact cut) used as circular arc starting point, with left end summit B, (two edges when being not provided with tail yoke portion 11 on suspension hook 1 cross
Point) it is terminal, circular arc is done with radius R1, the radius R1 of this circular arc is more than in the underclad portion of cam 2 apart from its centre of gyration O most
It is remote apart from H, tail yoke portion 11 is that the part for increasing part after circular arc is done on suspension hook 1, and tail yoke portion 11 makees chamfered in tip；
The underclad portion of cam 2 equally increases cooperation tail yoke portion 21, as shown in Figure 7：When suspension hook 1 is in the second extreme position
When, now cam operating so far extreme position-C points, C points are the straight line parallel with the edge L of the underclad portion of cam 2 and hang
The tangent point of contact of 11 circular arcs of tail yoke portion on hook 1, between A points on point of contact C and cam 2 smooth curve, the height of curve are done
Justify 400 not above the movement locus of C points, the tip for coordinating tail yoke portion 21 remakes chamfered, the movement locus circle 400 of C points
As shown in Figure 8.
Operation principle of the present utility model is as follows：
Eccentric cam 2 is driven to move in a circle using driving source, so as to drive push rod 3 again in the track motion for needing,
Push rod 3 promotes again suspension hook 1 to move to realize " opening " function according to required track, real in the presence of return mechanism in addition
Existing its " closing " function.
It is illustrated in figure 3 suspension hook 1 in an open position.
Be illustrated in figure 2 suspension hook 1 in the closed position, push rod 3 to left movement, suspension hook 1 can under the active force of extension spring 4 to
Move left, when the position of setting is reached (cam 2 touches the switch contact of microswitch 5 and sends signal), as " close " dynamic
Make, represent that the door of baking box is locked under this state.
Particular embodiments described above, the technical problem solved to this utility model, technical scheme and beneficial effect are entered
Go further description, should be understood that and the foregoing is only specific embodiment of the utility model, and without
It is all within spirit of the present utility model and principle in this utility model is limited, any modification, equivalent substitution and improvements done
Deng should be included within protection domain of the present utility model.
Claims (8)
1. a kind of lock for oven door mechanism, it is characterised in that it includes：
Suspension hook (1)；
Lift hook driving device, the lift hook driving device is connected with suspension hook (1), so that lift hook driving device drives suspension hook (1) to move
Make, suspension hook (1) is switched between open and closed positions；
Suspension hook moves constraint mechanism, and when suspension hook (1) is positioned at closed position, the suspension hook movement constraint mechanism acts on described hanging
On hook (1), so as to stop that suspension hook (1) is moved to the direction of open position.
2. lock for oven door mechanism according to claim 1, it is characterised in that：The lift hook driving device includes making suspension hook
(1) driver part moved from closed position to open position and returning of making suspension hook (1) move from open position to closed position
Position mechanism.
3. lock for oven door mechanism according to claim 2, it is characterised in that：The driver part includes driving source, cam
(2) and push rod (3), the driving source is connected with cam (2), described to push away so as to the driving source driving cam (2) rotation
Bar (3) is connected on cam (2), and the push rod (3) is connected with the suspension hook (1), and the suspension hook (1) is in hinge-like.
4. lock for oven door mechanism according to claim 3, it is characterised in that：The suspension hook movement constraint mechanism includes arranging
Tail yoke portion (11) on suspension hook (1) and cooperation tail yoke portion (21) being arranged on cam (2), when suspension hook (1) is positioned at close stance
When putting, the tail yoke portion (11) and cooperation tail yoke portion (21) are abutted together, so as to stop direction of the suspension hook (1) to open position
It is mobile.
5. lock for oven door mechanism according to claim 3, it is characterised in that：One end of the push rod (3) is connected to cam
(2) on, bending arm (31) is provided with the other end of the push rod (3), is moved from closed position to open position in suspension hook (1)
During, the bending arm (31) abuts with the suspension hook (1).
6. lock for oven door mechanism according to claim 2, it is characterised in that：The return mechanism includes extension spring (4), described
One end of extension spring (4) is connected with the suspension hook (1), and the other end of the extension spring (4) is fixedly installed.
7. lock for oven door mechanism according to claim 3, it is characterised in that：Also include door state feedback mechanism, the door
Feedback of status mechanism includes microswitch (5), is provided with the cam (2) and is engaged with the switch contact of microswitch (5)
Microswitch coordinate curved surface；When suspension hook (1) is positioned at closed position, the microswitch coordinates curved surface to touch microswitch
(5) switch contact；When suspension hook (1) is positioned at open position, the microswitch coordinates curved surface not touch microswitch (5)
Switch contact.
8. lock for oven door mechanism according to claim 3, it is characterised in that：The driving source is motor (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621073822.3U CN206091628U (en) | 2016-09-22 | 2016-09-22 | Oven door latch mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621073822.3U CN206091628U (en) | 2016-09-22 | 2016-09-22 | Oven door latch mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206091628U true CN206091628U (en) | 2017-04-12 |
Family
ID=58480371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621073822.3U Active CN206091628U (en) | 2016-09-22 | 2016-09-22 | Oven door latch mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206091628U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339021A (en) * | 2017-04-20 | 2017-11-10 | 宁波方太厨具有限公司 | A kind of door lock |
| CN109812148A (en) * | 2017-11-20 | 2019-05-28 | 青岛海尔洗碗机有限公司 | Household appliance door lock system, door lock control method and household appliance |
| KR101971273B1 (en) * | 2018-04-16 | 2019-08-13 | 엘지전자 주식회사 | A Latch Module, a Controlling Method thereof and a Cooking Device Using the Same |
| KR20190120676A (en) * | 2018-04-16 | 2019-10-24 | 엘지전자 주식회사 | A Latch Module, a Controlling Method thereof and a Cooking Device Using the Same |
| WO2019203444A1 (en) * | 2018-04-16 | 2019-10-24 | 엘지전자 주식회사 | Latch module, method for controlling latch module, and cooking apparatus to which same is applied |
| KR20210090391A (en) | 2020-01-10 | 2021-07-20 | 엘지전자 주식회사 | Cooking appliance |
| CN116905907A (en) * | 2023-09-14 | 2023-10-20 | 广东敏卓机电股份有限公司 | Oven door lock device and oven with same |
-
2016
- 2016-09-22 CN CN201621073822.3U patent/CN206091628U/en active Active
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339021A (en) * | 2017-04-20 | 2017-11-10 | 宁波方太厨具有限公司 | A kind of door lock |
| CN109812148A (en) * | 2017-11-20 | 2019-05-28 | 青岛海尔洗碗机有限公司 | Household appliance door lock system, door lock control method and household appliance |
| CN109812148B (en) * | 2017-11-20 | 2024-01-23 | 青岛海尔洗碗机有限公司 | Household appliance door lock system, door lock control method and household appliance |
| US11261634B2 (en) | 2018-04-16 | 2022-03-01 | Lg Electronics Inc. | Latch module and an appliance using the same |
| KR101971273B1 (en) * | 2018-04-16 | 2019-08-13 | 엘지전자 주식회사 | A Latch Module, a Controlling Method thereof and a Cooking Device Using the Same |
| KR102040222B1 (en) * | 2018-04-16 | 2019-11-04 | 엘지전자 주식회사 | A Latch Module, a Controlling Method thereof and a Cooking Device Using the Same |
| CN112041524A (en) * | 2018-04-16 | 2020-12-04 | Lg电子株式会社 | Latch module, control method thereof and cooking device applying latch module |
| WO2019203444A1 (en) * | 2018-04-16 | 2019-10-24 | 엘지전자 주식회사 | Latch module, method for controlling latch module, and cooking apparatus to which same is applied |
| KR20190120676A (en) * | 2018-04-16 | 2019-10-24 | 엘지전자 주식회사 | A Latch Module, a Controlling Method thereof and a Cooking Device Using the Same |
| EP3995746A1 (en) * | 2018-04-16 | 2022-05-11 | LG Electronics Inc. | Cooking device comprising a latch module |
| US11536048B2 (en) | 2018-04-16 | 2022-12-27 | Lg Electronics Inc. | Latch module and an appliance using the same |
| US11753856B2 (en) | 2018-04-16 | 2023-09-12 | Lg Electronics Inc. | Latch module and an appliance using the same |
| US12188276B2 (en) | 2018-04-16 | 2025-01-07 | Lg Electronics Inc. | Latch module and an appliance using the same |
| KR20210090391A (en) | 2020-01-10 | 2021-07-20 | 엘지전자 주식회사 | Cooking appliance |
| US11841144B2 (en) | 2020-01-10 | 2023-12-12 | Lg Electronics Inc. | Cooking appliance |
| CN116905907B (en) * | 2023-09-14 | 2023-12-22 | 广东敏卓机电股份有限公司 | Oven door lock device and oven with same |
| CN116905907A (en) * | 2023-09-14 | 2023-10-20 | 广东敏卓机电股份有限公司 | Oven door lock device and oven with same |
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