CN1991115A - Passivity type thermal drive snap lock - Google Patents
Passivity type thermal drive snap lock Download PDFInfo
- Publication number
- CN1991115A CN1991115A CN 200510135533 CN200510135533A CN1991115A CN 1991115 A CN1991115 A CN 1991115A CN 200510135533 CN200510135533 CN 200510135533 CN 200510135533 A CN200510135533 A CN 200510135533A CN 1991115 A CN1991115 A CN 1991115A
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- CN
- China
- Prior art keywords
- contact
- snap
- forearm
- length
- substrate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000758 substrate Substances 0.000 claims description 20
- 210000000245 forearm Anatomy 0.000 claims description 14
- 230000005484 gravity Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 7
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000009347 mechanical transmission Effects 0.000 abstract 1
- 229920003266 Leaf® Polymers 0.000 description 31
- 238000004659 sterilization and disinfection Methods 0.000 description 25
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 12
- 235000014676 Phragmites communis Nutrition 0.000 description 5
- 230000006378 damage Effects 0.000 description 5
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 208000014674 injury Diseases 0.000 description 4
- 230000001954 sterilising effect Effects 0.000 description 4
- 230000005489 elastic deformation Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000010453 quartz Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 101100042676 Mus musculus Skap2 gene Proteins 0.000 description 1
- 206010053615 Thermal burn Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000006385 ozonation reaction Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 1
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- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
The invention relates to a passive thermal driving locking structure for disinfector and other appliance. The door switch is controlled by simple mechanical transmission device according to the principle that bimetallic strip is deformed in heating. When the temperature in cabinet achieves alarming temperature the door is locked by deformation of bimetallic strip and when the temperature is decreased to safe range the door is unlocked. The device is provided with simple structure and convenience installment. The inner temperature is used as the action condition. As the thermal energy is transferred to mechanical energy the switch of door is controlled and it is safe and stable in working period. In the invention there is no need to open or close lock by manual work and the lock switch driven by thermal force is controlled by the signal of computer panel and the temperature in cabinet.
Description
Technical field
The present invention relates to a kind of Passivity type thermal drive snap lock, particularly, the present invention is meant a kind of when environment temperature improves especially, accept amount of heat passively and make bimetal leaf action, thereby the device that has contact with that causes locking moves and reaches and open or the purpose of locking.
Background technology
State Standard of the People's Republic of China GB17988-2004 " tableware disinfector safety and hygienic requirements " 6.1.22.101 regulation, " ozone disinfection cabinet (chamber), ultraviolet disinfection cabinet (chamber) all should be installed door switch; when maximum slit that disinfection cabinet (chamber) door is opened during greater than 2cm; ozone generating-device, quartz burner quit work immediately; when door is shut again, ozone generating-device, quartz burner are reworked.The ozone disinfection cabinet of ozone concentration 〉=40mg/m3 (chamber), ultraviolet disinfection cabinet (chamber) door should be equipped with the braking lock-switch, make after disinfection cabinet (chamber) is finished disinfection cycle, and disinfection cabinet (chamber) Men Caineng opens ".
Two kinds of states that this standard provides when concrete the execution, if utilize the lock of prior art, exist the possibility to the human injury:
First kind is to open the door to have a power failure to make ozone generating-device, quartz burner quit work, and still, if when door is opened, the ozone concentration in ozone disinfection cabinet (chamber), the ultraviolet disinfection cabinet (chamber) also on dangerous concentrations, the injury to human body will take place;
Second kind is that do not finish the work cycle refusal is opened door, and in fact this specified and can only adopt electric lockset because have only electric lockset, can and the control device of ozone disinfection cabinet (chamber), ultraviolet disinfection cabinet (chamber) so link.
As disinfection cupboard, not in fact the most frequently used a kind ofly in this standard, do not list, steam sterilization cabinet when the steam in the steam sterilization cabinet when still being high temperature, is opened a possibility that exists the user to come to harm accidentally;
How to design a kind of simple in structurely, the lock that can satisfy described requirement again is a problem to be solved by this invention.
Existing disinfection cabinet (or similar electrical equipment) door body switch mostly is contact outage formula, outage formula in contact is easy to just can open at a door body during the high-temperature sterilization or during the ozonization, the electric elements of uperization cabinet and other household electrical appliances just quit work though open the door, but during the high temperature that produces and (or) a large amount of ozone moment can not reduce and (or) disappear, this moment is as easy as rolling off a log cause high temperature to the scald of human body and (or) high-concentrated ozone leaks the injury to human body.For this reason, those skilled in the art have carried out a series of improvement, row documents specific as follows with regard to door body, the snap-on structure of disinfection cabinet and other household electrical appliances:
CN97209043.6 discloses a kind of burn-proof safety lock, as high-temperature disinfection cabinet and other household electrical appliances snap-on.Use shape memory alloy spring for pushing away the lock spring, when high temperature, have strong elasticity, push locking bar to snap close, the cabinet door can not be opened.This spring weakens when room temperature, locking bar is pushed back by the spring return action, and the cabinet door can be opened.
CN200420093376 discloses the automatically controlled time-delay snap-on of a kind of washing machine safety device.Comprise: pedestal, an end are fixed on the lock bolt, PTC ceramic heating element, bimetal leaf, slide plate, back-moving spring, contact of U-shaped reed, the tongue-shaped reed movable end at tongue-shaped reed, the tongue-shaped reed middle part of base bottom etc.When washing machine energising work, bimetal leaf is added thermal deformation by ceramic heating element, and the movable end that promotes tongue-shaped reed drives lock bolt and inserts slide plate square hole locking slide plate downwards, thereby guarantees that Men Buhui is opened in the washing machine course of work.When the laundry end, the switch outage, the bimetal leaf cooling, thus spring leaf and slide plate reset, and this moment, door just can be opened.
Summary of the invention
Main purpose of the present invention is to provide a kind of Passivity type thermal drive snap lock that is used for disinfection cabinet and other household electrical appliances.
Passivity type thermal drive snap lock structure of the present invention is used for disinfection cabinet or similar household electrical appliances, beat opening door body during operation accidentally, the unlatching of door body distance can be controlled in the scope of appointment, thus guaranteed high temperature and (or) ozone leaks the injury that human body is caused.
More specifically, the lockset of prior art generally has only two actions, close or open, and complex structure often, the present invention proposes a kind of passive-type half locking heating power lock, when the operator opens body accidentally, if the household electrical appliances temperature inside is higher than certain value, the connector that has contact with that has contact with on device and the door body of lockset of the present invention overlaps, and the door body can not be opened further, thereby has guaranteed user's safety.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of Passivity type thermal drive snap lock, comprise a substrate, on substrate, be provided with the fixed point that is used for fixing bimetal leaf one end, and, be used for the fastening devices that pivot fixedly has contact with device movingly, the described device that has contact with can move around the pivot on the fastening devices, and the end of having contact with the forearm of device is provided with a crotch, the end of having contact with the postbrachium of device is provided with opening, and the other end of bimetal leaf is inserted in the opening.
Preferably, the present invention is arranged to "＜" type prong with described opening.
Finish closed action in order to make full use of the gravity that has contact with device, the length of postbrachium of having contact with device is less than the length of the forearm that has contact with device, preferably, the length of having contact with the postbrachium of device is to have contact with the length 10-40% of the forearm of device, more preferably, the length of having contact with the postbrachium of device is to have contact with the length 15-25% of the forearm of device.In other words, the present invention finishes closed action in order to utilize the gravity that has contact with device, and center of gravity has been arranged on the pivot on the fastening devices between the crotch of end.
It is characterized in that described bimetal leaf is dish-shaped.
Fixed point and fastening devices and substrate are wholely set, and perhaps, described fixed point and fastening devices are spirally connected or are weldingly fixed on the bottom of substrate.
Thermal drive snap locking device of the present invention also comprises a guard shield, and described guard shield is fixed on the substrate, and its a end is offered one and is convenient to have contact with the fluting that forearm that device stretches out moves again.
Correspondingly, if snap-on of the present invention is applied on the specific product, need on the door body, be provided with and has contact with connector with it ordinatedly.
Further, when lock of the present invention is in closed condition, have contact with the forearm length or the installation site of device, can make a body be opened to maximum 2cm ground state.
During concrete the use, when household electrical appliances inner because the cooking or sterilization and temperature raises, cause the loose end of bimetal leaf upwards (according to direction as shown, if the switching direction of lock changes, the action of bimetal leaf can be derived with reason) move, the crotch 3221 of snap-on device 3 is under the effect of gravity, fall, be articulated in the having contact with on the connector 51 of door body 5, a door body is in closed condition, when described electric household appliance temperature inside is reduced to a certain degree, described bimetal leaf moves down, promote crotch 3221 and move up, final sum is had contact with connector 51 and is broken away from, and the door body can be opened.
Passivity type thermal drive snap lock of the present invention, also comprise a cover plate 33 and a guard shield 34, described cover plate 33 is fixedly installed on upper periphery, described guard shield 34 is fixedly installed on the bottom of substrate 32, the one end contains within it bimetal leaf 321 is whole, and its other end is offered one and had contact with the guard shield fluting 341 that device 322 passes for the ease of mechanical interlock in guard shield 34.
The described thermal drive snap lock construction that is used for disinfection cabinet and other household electrical appliances, the other end of described guard shield 34 is the end near door body 5, described mechanical interlock has contact with device 322 parts and is included in the guard shield 34, and another part passes guard shield fluting 341 and overlaps with the connector 51 that has contact with that is arranged on the body 5.
Use beneficial effect of the present invention to be: at first, thermal drive snap lock apparatus structure of the present invention is simple, and in fact, it is mainly by three parts, that is, substrate 32, bimetal leaf 321, have contact with device 322 and just can finish on-off action.
Secondly, during operation, thermal drive snap lock is safe and reliable; In addition, thermal drive snap locking device of the present invention need not manually to unblank, shut.
Description of drawings
Fig. 1 is one of exploded view of heating power lock of the present invention;
Fig. 2 be heating power of the present invention lock exploded view two;
Fig. 3 is the decomposing schematic representation of thermal drive snap locking device of the present invention;
Fig. 4 is that thermal drive snap locking device of the present invention is installed in the structural representation on disinfection cabinet and other household electrical appliances;
Fig. 5 is the structural scheme of mechanism of thermal drive snap locking device off working state of the present invention;
Fig. 6 is the structural scheme of mechanism of thermal drive snap locking device duty of the present invention;
In the present invention, the title correspondence of each figure number mark and parts is as follows: computer control panel 1, holding wire 2, snap-on device 3, electric heater assembly 31, prap 311, high temperature resistant line 312, substrate 32, bimetal leaf 321 has contact with device 322, crotch 3221, "＜" type prong 3222, "＜" type tail lower edge 3223, "＜" type tail upper edge 3224, fixed point 323, fastening devices 324, cover plate 33, guard shield 34, guard shield fluting 341, fixedly inner bag 4, and door body 5 has contact with connector 51.
In accompanying drawing 4,5 of the present invention, described bimetal leaf has two, and this is in order to describe two positions of bimetal leaf under normal temperature and high temperature, rather than the position is provided with two bimetal leafs in the drawings.
The specific embodiment
Below by specific embodiment, the present invention is described in detail for accompanying drawing in addition.
As shown in Figure 3, decomposing schematic representation for thermal drive snap locking device of the present invention, the described thermal drive snap lock construction that is used for disinfection cabinet and other household electrical appliances, described thermal drive snap locking device 3 comprises a substrate 32, the bottom of one substrate 32 is provided with rubber-like, is heated elastically-deformable bimetal leaf 321 just takes place, and having contact with device 322 with the mechanical interlock of bimetal leaf 321 1 ends overlap joints, described mechanical interlock has contact with device 322 other ends and has contact with connector 51 overlap joints on the body 5 with being arranged on.
Further, be provided with the fixed point 323 that is used for fixing bimetal leaf 321 in the bottom of described substrate 32 and be used for fixing the fastening devices 324 that mechanical interlock has contact with device 322, one end of described bimetal leaf 321 is fixed on the fixed point 323, but described mechanical interlock has contact with being fixed in the fastening devices 324 of other end upper and lower displacement campaign of device 322.
Described fixed point 323 and fastening devices 324 are wholely set with substrate 32, perhaps, described fixed point 323 and fastening devices 324 are spirally connected or are weldingly fixed on the bottom of substrate 32, as shown in Figure 3, fixed point and fastening devices adopt the mode that is wholely set to be fixed on the bottom of substrate 32 in embodiments of the present invention.
As shown in the figure, described thermal drive snap locking device 3 further comprises a cover plate 33 and a guard shield 34, described cover plate 33 is fixedly installed on upper periphery, described guard shield 34 is fixedly installed on the bottom of substrate 32, the one end contains within it bimetal leaf 321 is whole, and its other end is offered one and had contact with the guard shield fluting 341 that device 322 passes for the ease of mechanical interlock in guard shield 34.As shown in Figure 4, the other end of described guard shield 34 is that described mechanical interlock has contact with device 322 parts and is included in the guard shield 34 near an end of door body 5, and another part passes guard shield fluting 341 and overlaps with the connector 51 that has contact with that is arranged on the body 5.
In addition, bimetal leaf 321 described in the present invention adopts the bimetal leaf structure, described mechanical interlock has contact with device 322 and adopts hook structure, as shown in Figure 3, this hook structure is a crotch at the end 3221 with door body card connector overlap joint, and the inflexed radian of its crotch contains 1/2 surface area of body card connector 51 at least; This hook structure is offered into horizontal "＜" font with an end of bimetal leaf 321 overlap joints, wherein one of bimetal leaf 321 correct in "＜" type prong 3222 that is placed on "＜" word, at normal temperatures, this bimetal leaf 321 is bent on "＜" type tail lower edge 3223 of "＜" type prong that leans against " Y " word slightly downwards, and the mechanical interlock of hook structure has contact with device 322 and is the nature level; Under the situation of being heated, the generation elastic deformation of being heated of this bimetal leaf 321, one end of bimetal leaf 321 is fixed on the fixed point 323, and by conduction of heat, radiation, a slightly decurved end pops up, get on "＜" type tail upper edge 3224 of "＜" type prong of " Y " word, at this moment, it is that the center presses down with the fixed point of fastening devices 324 that the mechanical interlock of hook structure has contact with device 322, just in time is clamped on to have contact with on the connector, at this moment, the door body is locked.Above-mentioned action relationships explanation for the core component in the present invention's heat protection snap-on device.
During use, the household electrical appliances temperature inside promotes, when temperature reach a certain height, make bimetal leaf be heated, perk after the sheet metal generation elastic deformation of being heated, thereby the forearm that has contact with device moves down the connector that has contact with that pins on the door body under action of gravity, stopping heating making the household electrical appliances temperature inside descend, reduction along with temperature, bimetal leaf just sheet metal returns to reset temperature gradually, is subjected to the sheet metal of elastic deformation perk to return to original state, has contact with making progress of device thereby drive mechanical interlock, break away from the connector that has contact with on the door body, this moment, the door body just can be drawn back.
Claims (13)
1. Passivity type thermal drive snap lock, it is characterized in that: described snap-on comprises a substrate, on substrate, be provided with the fixed point (323) that is used for fixing bimetal leaf (321) one ends, and, be used for the fastening devices (324) that pivot fixedly has contact with device (322) movingly, describedly have contact with the pivot that device (322) can center on the fastening devices (324) and move, the end of having contact with the forearm of device (322) is provided with a crotch (3221), the end of having contact with the postbrachium of device (322) is provided with opening, and the other end of bimetal leaf (321) is inserted in the opening.
2. snap-on according to claim 1 is characterized in that: described opening is "＜" type prong (3222).
3. snap-on according to claim 1 is characterized in that: the length of postbrachium of having contact with device (322) is less than the length of the forearm that has contact with device (322).
4. snap-on according to claim 2 is characterized in that: the length of having contact with the postbrachium of device (322) is to have contact with the length 10-40% of the forearm of device (322).
5. snap-on according to claim 2 is characterized in that: the length of having contact with the postbrachium of device (322) is to have contact with the length 15-25% of the forearm of device (322).
6. snap-on according to claim 1 is characterized in that: described bimetal leaf is dish-shaped.
7. snap-on according to claim 1, it is characterized in that: described fixed point (323) and fastening devices (324) are wholely set with substrate (32), perhaps, described fixed point (323) and fastening devices (324) are spirally connected or are weldingly fixed on the bottom of substrate (32).
8. snap-on according to claim 1, it is characterized in that: described thermal drive snap locking device (3) further comprises a guard shield (34), described guard shield (34) is fixed on the substrate (32), and its a end is offered one and is convenient to have contact with the fluting (341) that forearm that device (322) stretches out moves again.
9. snap-on according to claim 1 is characterized in that: on the door body, be provided with one cooperate the end crotch (3221) have contact with device (322) forearm have contact with connector (51).
10. snap-on according to claim 1 is characterized in that: the center of gravity of having contact with device (322) at the pivot on the fastening devices (324) between the end crotch (3221).
11. snap-on according to claim 1 is characterized in that: end crotch (3221) moves up and down.
12. snap-on according to claim 1 is characterized in that: when described lock is in closed condition, have contact with the length or the installation site of the forearm of device (322), can make a body be opened to maximum 2cm.
13. snap-on according to claim 1 is characterized in that: the inflexed radian of described crotch contains 1/2 surface area that a body has contact with connector (51) at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005101355331A CN1991115B (en) | 2005-12-30 | 2005-12-30 | Passivity type thermal drive snap lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005101355331A CN1991115B (en) | 2005-12-30 | 2005-12-30 | Passivity type thermal drive snap lock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1991115A true CN1991115A (en) | 2007-07-04 |
| CN1991115B CN1991115B (en) | 2010-12-15 |
Family
ID=38213590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005101355331A Active CN1991115B (en) | 2005-12-30 | 2005-12-30 | Passivity type thermal drive snap lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1991115B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015139295A1 (en) * | 2014-03-21 | 2015-09-24 | Intel Corporation | Screwless cover design for computer systems and electronic devices |
| CN110811377A (en) * | 2019-12-11 | 2020-02-21 | 雷超 | Pot with conveniently detachable handle |
| CN114586529A (en) * | 2022-03-03 | 2022-06-07 | 李小彪 | Geothermal energy lawn mower |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104842751B (en) * | 2014-10-23 | 2017-09-15 | 北汽福田汽车股份有限公司 | Ventilation device for automobile and automobile |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5271649A (en) * | 1992-12-31 | 1993-12-21 | Southco, Inc. | Over center draw latch with lock bolt action |
| CN2169197Y (en) * | 1993-06-26 | 1994-06-15 | 何新法 | Automatic protector for electric tool overloading |
| CN2386141Y (en) * | 1999-08-13 | 2000-07-05 | 胡义荣 | Hasp lock |
| CN2716313Y (en) * | 2004-09-08 | 2005-08-10 | 温州耀华电讯有限公司 | Safety device for electric control delay time door lock of washing machine |
-
2005
- 2005-12-30 CN CN2005101355331A patent/CN1991115B/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015139295A1 (en) * | 2014-03-21 | 2015-09-24 | Intel Corporation | Screwless cover design for computer systems and electronic devices |
| CN110811377A (en) * | 2019-12-11 | 2020-02-21 | 雷超 | Pot with conveniently detachable handle |
| CN110811377B (en) * | 2019-12-11 | 2022-08-09 | 雷超 | Pot with conveniently detachable handle |
| CN114586529A (en) * | 2022-03-03 | 2022-06-07 | 李小彪 | Geothermal energy lawn mower |
| CN114586529B (en) * | 2022-03-03 | 2023-09-29 | 台州豪鑫汽车部件有限公司 | Geothermal energy mower |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1991115B (en) | 2010-12-15 |
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Effective date of registration: 20210309 Address after: 266000 Haier Industrial Park, 236 qianwangang Road, Qingdao Economic and Technological Development Zone, Qingdao City, Shandong Province Patentee after: QINGDAO HAIER INTELLIGENT COOKING APPLIANCES CO., LTD. Patentee after: HAIER Group Corp. Address before: 1, Haier Road, Shandong, Qingdao (Haier Industrial Park) 266101 Patentee before: HAIER Group Corp. Patentee before: QINGDAO HAIER DISHWASHER Co.,Ltd. |