CN204022230U - A kind of dumb waiter layer door lock - Google Patents
A kind of dumb waiter layer door lock Download PDFInfo
- Publication number
- CN204022230U CN204022230U CN201420421980.8U CN201420421980U CN204022230U CN 204022230 U CN204022230 U CN 204022230U CN 201420421980 U CN201420421980 U CN 201420421980U CN 204022230 U CN204022230 U CN 204022230U
- Authority
- CN
- China
- Prior art keywords
- shifting board
- layer door
- lock
- roller
- latch hook
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of dumb waiter layer door lock, comprise lock crook plate, adapter plate and shifting board, described lock crook plate is arranged on layer door, can move up with layer door; Described adapter plate is arranged on guide rail, and described shifting board is arranged on described adapter plate by axle, and described shifting board can pivot; Described shifting board is provided with roller, and described lock crook plate is provided with latch hook, and described latch hook can engage with described roller; When shifting board is around axle counter-clockwise swing, roller departs from latch hook, and when shifting board and lock crook plate depart from, lock crook plate just can move up, and realizes door opening action; When shifting board is under gravity around axle clockwise oscillation, latch hook engages with roller and door lock.The utility model changes a layer door lock structure, does not arrange the possibility that spring just avoids spring failure or fracture.And layer door lock can only be closed under gravity, can not open, make product design meet national standard.
Description
Technical field
The utility model relates to dumb waiter apparatus field, is specifically related to a kind of dumb waiter layer door lock.
Background technology
Dumb waiter refers to the fixing type lifter of serving and specifying stop.Dumb waiter has a car, and the structural shape of car and size do not allow personnel to enter.
Existing layer door lock relies on spring to close, and can close under spring force after door-lock opening.If spring failure or fracture, can not automatically close after door-lock opening.Specify, for the requirement " even if alnico magnets or spring failure, gravity also should not cause unblanking " of layer door lock in new dumb waiter GB GB25194-2010 " dumb waiter manufacture and installation safety standard ".
The patent No. is that the Chinese utility model patent of ZL200920195588.5 provides a kind of hoistway door door lock assembly, this lock is parts in elevator components-layer door gear, it must be opened with the use of Shi Caineng with the another kind of parts-door machine of elevator, realizes unlocking action when the door cutter on door machine and the roller contact on layer door lock extrude.Also refer in [0021] of this patent document, and the reset of this layer door lock is by spring (see [0020]).
But dumb waiter and man lift distinguish comparatively large, there are not the parts such as layer door gear and door machine, therefore need to design the special layer door lock of a kind of dumb waiter.
Utility model content
For solving the problems of the technologies described above, we propose a kind of dumb waiter layer door lock, and by modification layer door lock structure, cancel spring, door lock can be closed under gravity automatically, avoid spring failure or fracture and cause the object of adverse consequences.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of dumb waiter layer door lock, comprise lock crook plate, adapter plate and shifting board, described lock crook plate is arranged on layer door, can move up with layer door; Described adapter plate is arranged on guide rail, and described shifting board is arranged on described adapter plate by axle, and described shifting board can pivot; Described shifting board is provided with roller, and described lock crook plate is provided with latch hook, and described latch hook can engage with described roller;
When shifting board is around axle counter-clockwise swing, roller departs from latch hook, and when shifting board and lock crook plate depart from, lock crook plate just can move up, and realizes door opening action; When shifting board is under gravity around axle clockwise oscillation, latch hook engages with roller and door lock.
Preferably, described shifting board is provided with clump weight.
Preferably, described adapter plate is provided with limiting stopper.
Compared with prior art, the utility model has the following advantages:
When cage operation is to flat bed, hit grip handle roller and rush open, latch hook pivots and swings to the right, and latch hook is thrown off, and lock crook plate can be opened along with layer door moves; When car leaves flat bed, hit bow and leave roller with cage operation, layer door closes lock crook plate and gets back to initial position, and now, latch hook moves around axial left swing under gravity, and engage with lock crook plate, layer door is lockable.Complete the process of a switch gate.
The utility model changes a layer door lock structure, does not arrange the possibility that spring just avoids spring failure or fracture.And layer door lock can only be closed under gravity, can not open, make product design meet national standard.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only an embodiment of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to this accompanying drawing.
Fig. 1 is the closure state structural representation of a kind of dumb waiter layer door lock disclosed in the utility model embodiment 1;
Fig. 2 is the open mode structural representation of a kind of dumb waiter layer door lock disclosed in the utility model embodiment 1.
Corresponding component title in figure represented by numeral:
1. lock crook plate 2. adapter plate 3. shifting board 4. axle 5. roller 6. latch hook
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Below in conjunction with embodiment and detailed description of the invention, the utility model is described in further detail.
Embodiment 1.
As depicted in figs. 1 and 2, a kind of dumb waiter layer door lock, comprises lock crook plate 1, adapter plate 2 and shifting board 3, and lock crook plate 1 is arranged on layer door, can move up with layer door; Adapter plate 2 is arranged on guide rail, and shifting board 3 is arranged on adapter plate 2 by axle 4, and shifting board 3 can pivot; Shifting board 3 is provided with roller 5, and lock crook plate 1 is provided with latch hook 6, and latch hook 6 can engage with roller 5;
When shifting board is around axle counter-clockwise swing, roller departs from latch hook, and when shifting board and lock crook plate depart from, lock crook plate just can move up, and realizes door opening action; When shifting board is under gravity around axle clockwise oscillation, latch hook engages with roller and door lock.
The bottom of shifting board 3 is provided with clump weight, can lock more efficiently.In addition, if be provided with magnet one at the latch hook place of lock crook plate, roller place is provided with magnet two, magnet one and magnet two attracting, also can serve the same role.
Adapter plate 2 is provided with limiting stopper, can make the movement of shifting board 3 in the reasonable scope.
Axle 4 and roller 5 place are all provided with and can prevent its axially displaced jump ring.
Principle of work:
When cage operation is to flat bed, hit grip handle roller and rush open, latch hook pivots and swings to the right, and latch hook is thrown off, and lock crook plate can be opened along with layer door moves; When car leaves flat bed, hit bow and leave roller with cage operation, layer door closes lock crook plate and gets back to initial position, and now, latch hook moves around axial left swing under gravity, and engage with lock crook plate, layer door is lockable.Complete the process of a switch gate.
Compared with prior art, the utility model has the following advantages:
The utility model changes a layer door lock structure, does not arrange the possibility that spring just avoids spring failure or fracture.And layer door lock can only be closed under gravity, can not open, make product design meet national standard.
Above-described is only preferred implementation of the present utility model; it should be pointed out that for the person of ordinary skill of the art, under the prerequisite not departing from the utility model creation design; can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (3)
1. a dumb waiter layer door lock, is characterized in that, comprises lock crook plate, adapter plate and shifting board, and described lock crook plate is arranged on layer door, can move up with layer door; Described adapter plate is arranged on guide rail, and described shifting board is arranged on described adapter plate by axle, and described shifting board can pivot; Described shifting board is provided with roller, and described lock crook plate is provided with latch hook, and described latch hook can engage with described roller;
When shifting board is around axle counter-clockwise swing, roller departs from latch hook, and when shifting board and lock crook plate depart from, lock crook plate just can move up, and realizes door opening action; When shifting board is under gravity around axle clockwise oscillation, latch hook engages with roller and door lock.
2. a kind of dumb waiter layer door lock according to claim 1, it is characterized in that, described shifting board is provided with clump weight.
3. a kind of dumb waiter layer door lock according to claim 1 and 2, it is characterized in that, described adapter plate is provided with limiting stopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420421980.8U CN204022230U (en) | 2014-07-29 | 2014-07-29 | A kind of dumb waiter layer door lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420421980.8U CN204022230U (en) | 2014-07-29 | 2014-07-29 | A kind of dumb waiter layer door lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204022230U true CN204022230U (en) | 2014-12-17 |
Family
ID=52062122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420421980.8U Expired - Fee Related CN204022230U (en) | 2014-07-29 | 2014-07-29 | A kind of dumb waiter layer door lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204022230U (en) |
-
2014
- 2014-07-29 CN CN201420421980.8U patent/CN204022230U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 Termination date: 20180729 |