CN1225623C - Microwave oven interlocking device - Google Patents
Microwave oven interlocking device Download PDFInfo
- Publication number
- CN1225623C CN1225623C CN 01144677 CN01144677A CN1225623C CN 1225623 C CN1225623 C CN 1225623C CN 01144677 CN01144677 CN 01144677 CN 01144677 A CN01144677 A CN 01144677A CN 1225623 C CN1225623 C CN 1225623C
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- door lock
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- board component
- fire door
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Abstract
The present invention relates to a microwave oven interlocking device which is composed of a first door lock, a second door lock, a first door lock plate component and a second door lock plate component, wherein the first door lock and the second door lock which are respectively an elastic door lock and a fixed door lock are installed on the back side of a down-pulling oven door, and the first door lock and the second door lock are respectively interlocked with the first door lock plate component and the second door lock plate component. The first door lock plate component and the second door lock plate component are arranged on one side of a main cooking room of the microwave oven, and the side is provided with a miniature switch. The miniature switch of the elastic door lock has exact action, and the miniature switch can accurately detect the on-off state of an oven door and can reliably keep the closed state of the oven door. The fixed door lock can reliably keep the closed state of the oven door and can detect the on-off state of the oven door.
Description
Technical field
The present invention relates to a kind of fire door blocking device of micro-wave oven, particularly relate to a kind of open and-shut mode that both can accurately detect the pull-down fire door, can reliably keep the microwave oven interlocking device of fire door closed condition again.
Background technology
Fig. 1 constitutes side view for the micro-wave oven that adopts conventional art.According to shown in Figure 1,, be provided with inner chamber 1 in the inside of micro-wave oven.Above-mentioned inner chamber 1 constitutes the skeleton of micro-wave oven, and inside has formed cooking room 3.Can cook in above-mentioned cooking room 3 inside, generally speaking, micro-wave oven uses microwave as heating source, also can assist and use heater or light wave.To the mechanism that cooking room 3 provides above-mentioned microwave to use, be contained in a side of above-mentioned inner chamber 1 or the micro-wave oven the inside on top.
Above-mentioned cooking room 3 is provided with fire door 5, can open and close selectively.Above-mentioned fire door 5 can be with the sealing of the inlet of above-mentioned cooking room 3, and the microwave that prevents cooking room 3 inside is to external leakage, and the environment in keeping in the cooking room 3 is with outside isolated.And, after end of cooking, open door and can take out cooking food.
In this fire door 5 fronts one side, handle 6 is housed.In the inboard of above-mentioned fire door 5, door lock 7 is housed.Above-mentioned door lock 7 injects a side of inner chamber 1 by being located at the door lock hole 2 of above-mentioned inner chamber 1 front one side, matches with the door lock plate that is contained in above-mentioned inner chamber 1 an inner side, simultaneously, contacts with microswitch again.This door lock 7 has played the effect that keeps fire door 5 closed conditions; Effect with detecting fire door 5 closed conditions in case fire door 5 is opened, has the effect that stops the work of cooking.
On above-mentioned inner chamber 1 one side microwaves corresponding stove fronts, be provided with control section 9.On the above-mentioned control section 9, various knobs and the sign used for the operation micro-wave oven are housed.At the front of above-mentioned micro-wave oven upside, air grid 10 is housed also.Air grid is the path that micro-wave oven inside and outside air flows.
And generally speaking, above-mentioned door lock 7 can be at above-mentioned fire door 5 back sides, and stroke moves in accordance with regulations along the vertical direction.That is to say that in above-mentioned fire door 5 inboards, by elastic structure supporting and according to the switching of fire door 5, the elastic force that door lock 7 overcomes above-mentioned elastic structure carries out lifting, or pin or separate above-mentioned door lock plate.This door lock is referred to as the elasticity door lock.
But the conventional art with above-mentioned composition mode exists following technical problem.
That is to say the lifting door lock 7 that usually uses in the conventional art, be the structure of utilizing the microswitch action fully, as shown in Figure 1, fire door 5 for left and right sides switch form, though can keep the action of closed condition in good condition, but in the pull-down fire door of more uses in the recent period, but exist the action problem of unstable that keeps closed condition.
Summary of the invention
Purpose of the present invention promptly is a kind of microwave oven interlocking device is provided, and makes its closed condition that can reliably keep the pull-down door of microwave oven and the accurate open and-shut mode that detects fire door.
To achieve these goals, microwave oven interlocking device of the present invention, constitute by first door lock and second door lock and the first door lock board component and the second door lock board component, described first door lock and second door lock be installed in the pull-down fire door the back side and respectively with the first door lock board component and the second door lock board component interlock, the described first door lock board component and the second door lock board component are arranged on micro-wave oven main body cooking room one side and are provided with microswitch, it is characterized in that described first door lock and second door lock are respectively elasticity door lock and fixing door lock.
Based on above structure, the present invention utilizes the precision maneuver of elasticity door lock microswitch, can detect the open and-shut mode of fire door more exactly, also can reliably keep the closed condition of fire door simultaneously; Utilization fixedly door lock then can keep the fire door closed condition more reliably, also can detect the open and-shut mode of fire door simultaneously.Therefore, the present invention can detect the closed condition of the open and-shut mode and the maintenance fire door of fire door more reliably.
Be described in further detail below in conjunction with the technical characterictic of specific embodiment microwave oven interlocking device of the present invention.
Description of drawings
Fig. 1 is general microwave oven structure side view.
Fig. 2 is the microwave oven side view that is provided with microwave oven interlocking device of the present invention.
Fig. 3 is the side view of elasticity door lock and the first door lock board component among the present invention.
Fig. 4 is the fixing side view of door lock and the second door lock board component among the present invention.
Fig. 5 is the fixing movement state diagram when door lock and the second door lock board component interlock among the present invention.
The specific embodiment
Fig. 2 is for adopting the side view of embodiment of the invention micro-wave oven chief component.Press shown in the figure, inner chamber 30 inside constituting the micro-wave oven main body are provided with cooking room 32.Above-mentioned cooking room 32 is to place cooking food, the space of cooking.
Above-mentioned cooking room 32 utilizes fire door 35 to carry out switch.In the present invention, above-mentioned fire door 35 is the pull-down shutter door.Fire door 35 lower ends are connected with the positive lower end of above-mentioned inner chamber 30 with hinge (not shown).And above-mentioned fire door 35 positive upper ends are provided with one for the handle 37 that opens and closes fire door 35 usefulness.
In the front of above-mentioned micro-wave oven one side, be provided with control section 39, various knobs and sign that the operation micro-wave oven is used are housed on the control section 39.The front of above-mentioned micro-wave oven is made up of above-mentioned fire door 35 and control section 39.
Simultaneously, at the back side of above-mentioned fire door 35, be provided with elasticity door lock 50 and fixing door lock 60 respectively.Because above-mentioned elasticity door lock 50 and fixedly door lock 60 be contained in the both sides at fire door 35 back sides, so should be contained on the positive of the corresponding inner chamber 30 in above-mentioned cooking room 32 inlet two ends and the position corresponding with door lock hole 31.Certain above-mentioned elasticity door lock 50 and fixedly door lock 60 also can be contained in the homonymy of above-mentioned cooking room 32 inlets.Above-mentioned elasticity door lock 50 is at the back side of above-mentioned fire door 35, and stroke moves in accordance with regulations, and said fixing door lock 60 then is fixedly installed on the back side of above-mentioned fire door 35.
Here, to the above-mentioned elasticity door lock 50 and the fixing structure of the 1st and the 2nd door lock board component 70,80 of door lock 60 interlocks, be illustrated.
The composition of the 1st door lock board component 70 at first, is described with reference to Fig. 3.Above-mentioned the 1st door lock board component 70 and elasticity door lock 50 interlocks is arranged on above-mentioned furnace chamber 30 inside.
Above-mentioned the 1st door lock board component 70 is provided with various devices on door lock plate 72.On the position of above-mentioned door lock hole 31 correspondences, be provided with rake 74.Rake leads to entering and retreating of above-mentioned elasticity door lock 50, and the medial end of above-mentioned rake 74 colludes the end that hangs above-mentioned elasticity door lock 50.The closed condition that keeps fire door 35.
On above-mentioned door lock plate 72, microswitch 75 is housed.Above-mentioned microswitch 75 is driven by switch lever 76.Be that switch lever 76 is done the center with hinge axis 77, on above-mentioned door lock plate 72, rotate.By above-mentioned elasticity door lock 50 effects, drive above-mentioned microswitch 75 while rotating.
If be illustrated forming with the above-mentioned elasticity door lock 50 of above-mentioned the 1st door lock board component 70 interlocks, then above-mentioned elasticity door lock 50 is connected with the slide block 52 that is contained in fire door 35 inside.Above-mentioned slide block 52 is in above-mentioned fire door 35 inside, oscilaltion.Though do not illustrate among the figure,, be equipped with to the lead structural member of usefulness of above-mentioned slide block 52 liftings in above-mentioned fire door 35 inside.
Above-mentioned slide block 52 is being supported by elastic structure 54, and when above-mentioned elasticity door lock 50 enters above-mentioned door lock plate 72 when inner along above-mentioned rake 74, the limit overcomes the elastic force of above-mentioned elastic structure, and move on the limit.
Then, with reference to Fig. 4, to the composition of the 2nd door lock board component, be illustrated again.
At first, the door lock plate 82 of the 2nd door lock board component 80 is contained in above-mentioned furnace chamber 30 inboards, promptly is contained in said fixing door lock 60 to insert on the corresponding position in door lock hole 31.On above-mentioned door lock plate 82, oblique angle in accordance with regulations is provided with microswitch 85.On the above-mentioned microswitch 85, be equipped with and carry out the button 86 that exercises are used.
Between above-mentioned microswitch 85, be provided with switch lever 88 equally.Switch lever keeps the oblique angle of regulation, can carry out linear reciprocation and move.Above-mentioned switch lever 88 be mounted on pilot pin 83,83 on the above-mentioned door lock plate 82 ', lead to moving.On above-mentioned and the corresponding position of knob each microswitch 85, be provided with support arm 84.
On above-mentioned switch lever 88,, be equipped with and hang arm 89 in the position corresponding with said fixing door lock 60.With above-mentioned extension arm 89 adjacency, also be provided with a hanging platform 89 of using with said fixing door lock 60 interlocks '.
The switch lever 88 of Zu Chenging like this, its two ends are being supported by torsion spring 90.Above-mentioned torsion spring 90 1 end bearings are on above-mentioned door lock plate 82, and the other end then is bearing on the switch lever 88, will be the center with above-mentioned switch lever 88 during installing, and both sides keep symmetry.
Be fixed on the back side of above-mentioned fire door 35 with the fixedly door lock 60 of above-mentioned the 2nd door lock board component 80 interlocks, its central authorities have colludes hanging hole 62.The above-mentioned hanging hole 62 that colludes is parts that above-mentioned extension arm 89 colludes extension.
To the effect of the microwave oven interlocking device of the present invention that adopts this composition mode, be illustrated below.
The present invention is at fire door 35 open and-shut modes that detect pull-down, and in the interlock that the maintenance closed condition is used, the one side is used elasticity door lock 50, and opposite side uses fixedly door lock 60.
Like this, when opening and closing fire door, above-mentioned elasticity door lock 50 and fixedly door lock 60 respectively with the 1st and the 2nd door lock board component 70,80 interlocks, detect the door opening and closing state, keep the closed condition of fire door.
Here at first above-mentioned elasticity door lock 50 and the 1st door lock board component 70 interlock situations are illustrated.
If fire door 35 is closed, the elasticity door lock 50 that is contained in above-mentioned fire door 35 back sides so enters furnace chamber 30 inboards by above-mentioned door lock hole 31.Elasticity door lock 50 by above-mentioned door lock hole 31 is directed to along the rake 74 of above-mentioned door lock plate 72.Like this, above-mentioned elasticity door lock 50 limits overcome above-mentioned elastic structure 54 elastic edges and do above-mentioned moving, and its top has hung over the top of above-mentioned rake 74.Like this, because of the closed condition of above-mentioned fire door 35, just can not arbitrarily be opened fire door.
Along with entering of above-mentioned elasticity door lock 50, above-mentioned switch lever 76 is the center with above-mentioned hinge axis 77, does counterclockwise and rotates, and makes above-mentioned microswitch 75 actions, so just can detect the closed condition of fire door 35.
Next with reference to Fig. 4 and Fig. 5, said fixing door lock 60 and the 2nd door lock board component 80 interlock situations are described.Fig. 4 shows the closed condition of fire door 35, and at this moment, the extension arm of switch lever 88 is inserted into fire door 35 and fixedly colludes hole 62 on the door lock 60, and an arm 84 of above-mentioned switch lever 88 both sides, then presses the button 86 of microswitch 85.Like this, action frontier inspection in microswitch 85 limits is surveyed the closed condition of fire door 35.
At this moment, though above-mentioned switch lever 88 is done elastic bearing by torsion spring 86,, keeping the state that stops because of fixedly door lock 60 effects of fire door 35.
In this state, if the user opens fire door 35, then as shown in Figure 5, because the extension arm 89 of switch lever 88 ' hang in the hanging hole 62 of fixing door lock 60, so, spur extension arm 89 ' could decontrol.Like this, above-mentioned switch lever 88 forms the gradient of regulation, shifts to the place ahead.At this moment, because above-mentioned extension arm 89 ' position is lower than fixedly door lock 60 highly, thereby no longer with fixing door lock 60 interlocks.
Here the torsion spring 90 that is supporting switch lever 88 is through the dead point, and elastic force makes switch lever 88 towards the place ahead effect, therefore, and can not be along with moving about or shifting to the rear.
When closing the fire door 35 that is opened again, if fire door 35 is pushed to furnace chamber 30 1 sides, so the hanging platform 89 of the fixedly door lock 60 top pull switch bars 88 of fire door 35 ', thereby above-mentioned switch lever 88 forms gradient once more backwards and moves.Extension arm 89 positions of switch lever 88 uprise once more, insert in the hanging hole 62 of fixing door lock 60, and simultaneously, switch lever 88 both sides support arms 84 are pressed the button 86 of microswitch 85, and microswitch 85 moves once more.
At this moment, support torsion spring 90 distortion of above-mentioned switch lever 88, again through the dead point, the elastic force of torsion spring 90 is shifted to the directive effect at rear towards switch lever 88, and therefore, switch lever 88 can not arbitrarily move in the face of the place ahead.
Claims (3)
1, a kind of microwave oven interlocking device, constitute by first door lock and second door lock and the first door lock board component and the second door lock board component, described first door lock and second door lock be installed in the pull-down fire door the back side and respectively with the first door lock board component and the second door lock board component interlock, the described first door lock board component and the second door lock board component are arranged on micro-wave oven main body cooking room one side and are provided with microswitch, it is characterized in that described first door lock and second door lock are respectively elasticity door lock and fixing door lock.
2, microwave oven interlocking device according to claim 1, it is characterized in that described elasticity door lock and fixedly door lock to be arranged at the furnace chamber of cooking room inlet positive and respectively by door lock hole and the first door lock plate and the second door lock board component interlock that are installed in the furnace chamber inboard.
3, microwave oven interlocking device according to claim 1, it is characterized in that described elasticity door lock and fixedly door lock be installed in the both sides, the back side of pull-down fire door respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01144677 CN1225623C (en) | 2001-12-25 | 2001-12-25 | Microwave oven interlocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01144677 CN1225623C (en) | 2001-12-25 | 2001-12-25 | Microwave oven interlocking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1428547A CN1428547A (en) | 2003-07-09 |
| CN1225623C true CN1225623C (en) | 2005-11-02 |
Family
ID=4677758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01144677 Expired - Fee Related CN1225623C (en) | 2001-12-25 | 2001-12-25 | Microwave oven interlocking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1225623C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100398912C (en) * | 2003-12-12 | 2008-07-02 | 乐金电子(天津)电器有限公司 | Microwave oven |
| CN100487321C (en) * | 2004-09-20 | 2009-05-13 | 乐金电子(天津)电器有限公司 | Microwave oven door |
| CN100424420C (en) * | 2006-12-05 | 2008-10-08 | 广东格兰仕集团有限公司 | Interlock mechanism of microwave oven door |
| CN110958837A (en) | 2017-07-06 | 2020-04-03 | 布瑞威利私人有限公司 | Telescopic door for oven |
-
2001
- 2001-12-25 CN CN 01144677 patent/CN1225623C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1428547A (en) | 2003-07-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051102 Termination date: 20100125 |