CN101397867A - Door lock for refrigerator - Google Patents
Door lock for refrigerator Download PDFInfo
- Publication number
- CN101397867A CN101397867A CNA2007101516756A CN200710151675A CN101397867A CN 101397867 A CN101397867 A CN 101397867A CN A2007101516756 A CNA2007101516756 A CN A2007101516756A CN 200710151675 A CN200710151675 A CN 200710151675A CN 101397867 A CN101397867 A CN 101397867A
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- lock
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- housing
- door lock
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Abstract
The invention relates to a door lock, in particular to a door lock applied to the doors of refrigerators. The components of the door lock are as follows: a lock housing provided with a cylindrical cavity, both terminals of which are provided with round openings; a lock cylinder which is positioned in the cavity of the lock housing; a latch hook which is rigidly connected with one end of the lock cylinder, the other end of which is provided with a keyhole; and a key which is coupled with the keyhole. The lock cylinder consists of an active lock cylinder which can move straightly along the axial direction of the lock housing cavity and rotate, and a passive lock cylinder which can be driven to rotate by the active lock cylinder; a restoring spring is fixed between the active lock cylinder and the passive lock cylinder. A bipolar positioning device, which is used for limiting the rotation position of the active lock cylinder, is fixed in the cavity of the lock housing; the keyhole is positioned on the active lock cylinder; and the latch hook is rigidly connected with the passive lock cylinder. The invention provides the door lock applied to the doors of refrigerators, which is characterized by strong protective function, simple and compact structure, and functions of automatically ejecting the key after locking or unlocking.
Description
Technical field
The present invention relates to a kind of door lock, particularly a kind of door lock that is applied on the freezer door body
Background technology
Refrigerator is as large-scale domestic refrigerating appts and be widely used in each social corner, but because its refrigerating chamber height is low, making children climb into refrigerator easily damages, therefore be provided with door lock on the general freezer door body in order to prevent that above-mentioned situation from occurring, wherein open day is August 8 calendar year 2001, application number is 00110868.9, the Chinese patent that name is called door lock for refrigerator discloses a kind of door lock for refrigerator, comprise lock body, core, latch hook and spring, keyhole on the core is that cross section is polygonal through hole, the core back segment penetrates in the axle center round tube hole of lock body back boss, be covered with a hollow cap on the boss, there is one " rivet " shape key to eject nail in the hollow cap, one compression spring is arranged between its head of a nail end face and hollow cap inner bottom surface, and its ailhead section is the shape of cross section polygon prism identical with the keyhole shape of cross section, and penetrates in the keyhole, and terminal concordant substantially with the keyhole front end, the core leading portion exposes on the lock body front end face latch hook is housed; And open day be on April 3rd, 2002 patent No. be ZL01243718.2, the Chinese utility model patent that name is called Ice cabinet lock discloses a kind of door lock that is used on the refrigerator, this door lock is by pin, back-up ring, dial plate, lock core, lock body, stage clip, ending jam plate and key forms, at least be provided with two stopper slots on the inwall of described lock body, two stopper slots communicate with circumferential groove on this inwall, and lock core is made up of preceding lock core and rear lock core, stage clip and end the cavity that jam plate is positioned at lock core, end jam plate and be made up of the two parts that intersect, its axial component and lock core and stage clip join, and touch mutually with stopper slot on the lock body inwall lateral part.
But need coupling assembling too much in the technical scheme of the prior art of above patent document representative, connection complexity between them, be affected application life easily.The present invention just is based on the simpler compactness of a kind of structure of the shortcoming proposition of above-mentioned prior art, a kind of door lock that is used on the refrigerator that protective value is strong.
Summary of the invention
A goal of the invention of the present invention is to provide a kind of protective value strong, a kind of door lock that is used on the refrigerator simple and compact for structure.
Another goal of the invention of the present invention is to provide a kind of key that can make can eject the door lock on the refrigerator of being used for of key automatically after locking and unblanking.
In order to realize above-mentioned goal of the invention, the present invention adopts following technical scheme:
A kind of door lock that is used on the refrigerator comprises
One lock housing, this lock housing are one to have the housing of column type cavity, and its two ends are provided with circular open;
One lock core, this lock core are arranged in the lock housing cavity;
One latch hook, this latch hook and lock core one end are rigidly connected;
The other end of lock core also is provided with keyhole, this door lock also comprises the key that cooperates with keyhole, above-mentioned lock core comprises can be along lock housing cavity axial linear movement and the active lock core that rotates, and can by this initiatively lock core drive rotate by movable lock core, lock core and be set with back-moving spring between the movable lock core initiatively, also fixedly install in the lock housing cavity and be useful on the bipolar detent mechanism that limits above-mentioned active lock core turned position, keyhole is arranged on initiatively on the lock core, latch hook be rigidly connected by movable lock core.
Above-mentioned lock housing comprises mutual rigidly connected locking closure and lock body, and locking closure is that a center is provided with the circular open capping structure, and lock body is one to have the housing of column type cavity, and above-mentioned bipolar detent mechanism is arranged on the peripheral region of locking closure inner circular opening.
Above-mentioned bipolar detent mechanism is made up of first block and second block that are arranged on locking closure inner circular opening periphery, this first block and second block are the circular arc type structure, the center of circle of circular arc type structure overlaps with the center of circle of above-mentioned circular open, forms two locating slots between this first block and second block.
Folded center angle is 90 ° between two above-mentioned locating slots, and the first above-mentioned block is higher than second block to form two blocking surfaces that cooperate with above-mentioned locating slot.
Above-mentioned active lock core comprises be rigidly connected mutually first limiting section and second limiting section, first limiting section is the cylinder corresponding with the circular open of locking closure, second limiting section is that the cross section is the strip shape body of regular polygon, also be provided with flange in addition on this active lock core, this flange is provided with the limited block that cooperates with bipolar detent mechanism.
The second above-mentioned limiting section center is provided with the groove that is used for fixing back-moving spring, and the groove floor center also is provided with first pole that is used for fixing back-moving spring one end.
Above-mentioned is the cylinder corresponding with the column type cavity of lock housing by movable lock core, and it is provided with the groove that cooperates with the second above-mentioned limiting section cross sectional shape, and the groove floor center is provided with second pole that is used for fixing the back-moving spring other end.
Above-mentioned keyhole is that a cross section is polygonal shrinkage pool, and above-mentioned key comprises boss structure and the convenient the shank of the key that use rigidly connected with it that cooperates with the cross sectional shape of this shrinkage pool.
By adopting above-mentioned technical scheme, it is strong to the invention provides a kind of protective value, simple and compact for structure, and can eject a kind of door lock that is used on the refrigerator of key after locking and unblanking automatically.
Description of drawings
What show among Fig. 1 is the stereogram of the internal construction of embodiments of the invention;
What show among Fig. 2 is the cross-sectional schematic of first state of embodiments of the invention;
What show among Fig. 3 is the cross-sectional schematic of second state of embodiments of the invention;
What show among Fig. 4 is the cross-sectional schematic of the third state of embodiments of the invention;
What show among Fig. 5 is the cross-sectional schematic of the 4th state of embodiments of the invention;
Each label proxy component title is as follows in the accompanying drawing:
1 key, 2 lock housings, 3 lock cores, 4 back-moving springs
5 latch hooks, 11 the shank of the keys, 12 boss structures, 21 locking closures
22 lock bodies, 31 active lock cores 32 are by movable lock core 211 first blocks
212 second blocks, 213 first locating slots, 214 second locating slots, 311 first limiting sections
312 second limiting sections, 313 flanges, 314 limited blocks, 315 keyholes
A, b confined planes
The specific embodiment
It is strong to the invention provides a kind of protective value; the door lock that is used on the refrigerator simple and compact for structure; this door lock for refrigerator can both eject key automatically after the process of locking and unblanking, below in conjunction with Figure of description the structure that this is used for the door lock on the refrigerator is described in detail.
What show respectively among Fig. 1 and Fig. 2 is the stereogram of internal construction of the embodiment that is used for the door lock on the refrigerator of the present invention and the cross-sectional schematic of this door lock for refrigerator first state, this door lock that is used on the refrigerator comprises the lock housing of being made up of locking closure 21 and lock body 22 2, this lock housing 2 is one to have block and have the housing of column type cavity, is provided with circular open at the two ends of this housing simultaneously.
Be equipped with lock core 3 in this lock housing 2, the two ends of the lock core 3 after the assembling are equal with the two ends of above-mentioned lock housing 2.Lock core 3 comprises initiatively lock core 31 and by movable lock core 32, initiatively lock core 31 can be along lock housing 2 inner chamber axial direction rectilinear motions, also can in lock housing 2 inner chambers, rotate simultaneously, can in the cavity of lock housing 2, rotated under the drive of active lock core 31 by movable lock core 32, can not be at the axial direction moving linearly but be somebody's turn to do by movable lock core 32.Be set with back-moving spring 4 at active lock core 31 and between in addition by movable lock core 32, also fixedly install in lock housing 2 inner chambers and be useful on the bipolar detent mechanism that limits above-mentioned active lock core 31 turned positions, keyhole 315 is arranged on initiatively on the lock core 31, latch hook 5 be rigidly connected by movable lock core 32.
Below above-mentioned each assembly is elaborated, wherein locking closure 21 is that a center is provided with the circular open capping structure, and lock body 22 is one to have the housing of column type cavity, and above-mentioned bipolar detent mechanism is arranged on the peripheral region of locking closure 21 inner circular openings.Locking closure 21 is provided with the circumferential draw-in groove, lock body 22 1 ends are provided with the flanging corresponding with this circumferential draw-in groove, by this flanging is fixed in this draw-in groove, make locking closure 21 and lock body 22 to be fixed together, above-mentioned in addition bipolar detent mechanism is made up of first block 211 and second block 212 that are arranged on locking closure 21 inner circular opening peripheries, this first block 211 and second block 212 are the circular arc type structure, their center of circle overlaps with the center of circle of described circular open, form first locating slot 213 and second locating slot 214 between this first block 211 and second block 212, folded central angle is 90 ° between these two locating slots, these two locating slots limit the initiatively position of lock core 31 rotations in order to cooperate the limited block 314 on the active lock core 31, to be 90 ° be in order to make in the process sensation of locking and unblanking with key 1 obviously convenient the use and set folded angle between these two locating slots.The height of the first above-mentioned in addition block 211 greater than the height of second block 212 form two outstanding blocking surface a, b make the limited block 314 of lock core 31 initiatively under the restriction of blocking surface a, b can with locating slot accurate corresponding together, so bipolar detent mechanism location is more accurate.
Must guarantee when utilizing said modules to assemble that active lock core 31 first limiting section 31 in the process of motion does not break away from the manhole of locking closure 21 all the time, second limiting section 32 does not then break away from by the groove of movable lock core 32 corresponding second limiting sections 32 all the time.
Fig. 2-Fig. 5 then is each view in the door lock for refrigerator opening and closing stage.Wherein the state that shows among Fig. 2 is with the keyhole 315 on the boss structure 12 insertion active lock cores 31 of key 1; Among Fig. 3, key 1 is applied axial compression make that initiatively lock core 3 moves along the axial straight line of above-mentioned lock housing 2 cavitys, its limited block breaks away from first locating slot 213 simultaneously, and back-moving spring 4 produces elastic deformation; Among Fig. 4, when maintenance applies axial compression to key 1 with this key 1 half-twist, limited block 314 is blocked face b restriction, make that its position with second locating slot 214 is corresponding, simultaneously, by movable lock core 32 by 90 ° of active lock core 31 driven rotary, with the correspondence position (not shown) that is connected to by movable lock core 32 rigidly connected latch hooks 5 on the refrigerator; Cancel the axial compression that key 1 is applied among Fig. 5, this key 1 ejects automatically, initiatively lock core is axially being got back to initial position on the direction under the return action power of back-moving spring 4, and corresponding limited block 314 snap in make in second locating slot 214 lock cores 31 initiatively, by movable lock core 32 and on latch hook 5 fixing, so promptly make door lock for refrigerator close on the state of just locking.To open the method that is adopted when this door lock for refrigerator is just unblanked just in time opposite with the step of above-mentioned explanation when needs.
Therefore by adopting above-mentioned technical scheme, it is strong to the invention provides a kind of protective value, simple and compact for structure and door lock for refrigerator that can eject key automatically.
And the scope that the present invention protected is not limited to technical scheme illustrated in the foregoing description, as long as but include the technical scheme that the technical characterictic in claims of the present invention forms and just fall within the scope of protection of the present invention.
Claims (8)
1, a kind of door lock that is used on the refrigerator comprises
One lock housing, this lock housing are one to have the housing of column type cavity, and its two ends are provided with circular open;
One lock core, this lock core are arranged in the lock housing cavity;
One latch hook, this latch hook and lock core one end are rigidly connected;
The other end of lock core also is provided with keyhole, this door lock also comprises the key that cooperates with keyhole, it is characterized in that, described lock core comprises can be along lock housing cavity axial linear movement and the active lock core that rotates, and can by this initiatively lock core drive rotate by movable lock core, lock core and be set with back-moving spring between the movable lock core initiatively, also fixedly install in the lock housing cavity and be useful on the bipolar detent mechanism that limits described active lock core turned position, keyhole is arranged on initiatively on the lock core, latch hook be rigidly connected by movable lock core.
2, a kind of door lock that is used on the refrigerator according to claim 1, it is characterized in that, described lock housing comprises mutual rigidly connected locking closure and lock body, locking closure is that a center is provided with the circular open capping structure, lock body is one to have the housing of column type cavity, and described bipolar detent mechanism is arranged on the peripheral region of locking closure inner circular opening.
3, a kind of door lock that is used on the refrigerator according to claim 2, it is characterized in that, described bipolar detent mechanism is made up of first block and second block that are arranged on locking closure inner circular opening periphery, this first block and second block are the circular arc type structure, the center of circle of circular arc type structure overlaps with the center of circle of described circular open, forms two locating slots between this first block and second block.
4, a kind of door lock that is used on the refrigerator according to claim 3 is characterized in that, folded center angle is 90 ° between described two locating slots, and described first block is higher than second block to form two blocking surfaces that cooperate with described locating slot.
5, according to claim 2,3 or 4 described a kind of door locks that are used on the refrigerator, it is characterized in that, described active lock core comprises be rigidly connected mutually first limiting section and second limiting section, first limiting section is the cylinder corresponding with the circular open of locking closure, second limiting section is that the cross section is the strip shape body of regular polygon, also be provided with flange in addition on this active lock core, this flange is provided with the limited block that cooperates with bipolar detent mechanism.
6, a kind of door lock that is used on the refrigerator according to claim 5 is characterized in that, the described second limiting section center is provided with the groove that is used for fixing back-moving spring, and the groove floor center also is provided with first pole that is used for fixing back-moving spring one end.
7, a kind of door lock that is used on the refrigerator according to claim 5, it is characterized in that, described is the cylinder corresponding with the column type cavity of lock housing by movable lock core, it is provided with the groove that cooperates with the described second limiting section cross sectional shape, and the groove floor center is provided with second pole that is used for fixing the back-moving spring other end.
8, a kind of door lock that is used on the refrigerator according to claim 1, it is characterized in that, described keyhole is that a cross section is polygonal shrinkage pool, and described key comprises boss structure and the convenient the shank of the key that use rigidly connected with it that cooperates with the cross sectional shape of this shrinkage pool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710151675 CN101397867B (en) | 2007-09-26 | 2007-09-26 | Door lock for refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710151675 CN101397867B (en) | 2007-09-26 | 2007-09-26 | Door lock for refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101397867A true CN101397867A (en) | 2009-04-01 |
| CN101397867B CN101397867B (en) | 2012-10-17 |
Family
ID=40516686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710151675 Active CN101397867B (en) | 2007-09-26 | 2007-09-26 | Door lock for refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101397867B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101942933A (en) * | 2010-08-20 | 2011-01-12 | 青岛澳柯玛股份有限公司 | Safety lock |
| CN102405324A (en) * | 2009-04-20 | 2012-04-04 | 雷诺股份公司 | Device for enabling the locking/unlocking of a member on and out of a structure |
| CN102953582A (en) * | 2012-11-13 | 2013-03-06 | 无锡市永创电控器材有限公司 | Anti-jamming limiting lock box of ATM (automatic teller machine) cabinet lock |
| CN103711387A (en) * | 2014-01-06 | 2014-04-09 | 合肥华凌股份有限公司 | Lock for freezer and freezer with same |
| CN106869625A (en) * | 2017-03-13 | 2017-06-20 | 宁波生久柜锁有限公司 | Automatically reset lock |
| CN109972929A (en) * | 2019-02-28 | 2019-07-05 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | The reinforced cabinet multiple spot mechanical lock of anticreep |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101568395B1 (en) | 2014-02-26 | 2015-11-12 | (주)부영뉴텍 | Mode Switch |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5582443A (en) * | 1995-03-27 | 1996-12-10 | Finkelstein; Burl | Locking assembly for refrigerator doors |
| CN2220518Y (en) * | 1995-05-12 | 1996-02-21 | 尹建平 | Bicycle anti-theft lock with double-core |
| CN2535499Y (en) * | 2002-02-01 | 2003-02-12 | 甘淼漾 | Internal-external two-section alternate-angle safe lock |
| CN201110062Y (en) * | 2007-09-26 | 2008-09-03 | 海尔集团公司 | Door lock for refrigerator |
-
2007
- 2007-09-26 CN CN 200710151675 patent/CN101397867B/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102405324A (en) * | 2009-04-20 | 2012-04-04 | 雷诺股份公司 | Device for enabling the locking/unlocking of a member on and out of a structure |
| CN102405324B (en) * | 2009-04-20 | 2015-02-18 | 雷诺股份公司 | Device for enabling the locking/unlocking of a member on and out of a structure |
| CN101942933A (en) * | 2010-08-20 | 2011-01-12 | 青岛澳柯玛股份有限公司 | Safety lock |
| CN102953582A (en) * | 2012-11-13 | 2013-03-06 | 无锡市永创电控器材有限公司 | Anti-jamming limiting lock box of ATM (automatic teller machine) cabinet lock |
| CN103711387A (en) * | 2014-01-06 | 2014-04-09 | 合肥华凌股份有限公司 | Lock for freezer and freezer with same |
| CN103711387B (en) * | 2014-01-06 | 2017-01-25 | 合肥华凌股份有限公司 | Lock for freezer and freezer with same |
| CN106869625A (en) * | 2017-03-13 | 2017-06-20 | 宁波生久柜锁有限公司 | Automatically reset lock |
| CN109972929A (en) * | 2019-02-28 | 2019-07-05 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | The reinforced cabinet multiple spot mechanical lock of anticreep |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101397867B (en) | 2012-10-17 |
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