CN203050241U - One-way back-blocking type door lock - Google Patents
One-way back-blocking type door lock Download PDFInfo
- Publication number
- CN203050241U CN203050241U CN 201320074933 CN201320074933U CN203050241U CN 203050241 U CN203050241 U CN 203050241U CN 201320074933 CN201320074933 CN 201320074933 CN 201320074933 U CN201320074933 U CN 201320074933U CN 203050241 U CN203050241 U CN 203050241U
- Authority
- CN
- China
- Prior art keywords
- lock body
- core bar
- steel ball
- groove
- door lock
- 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
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- Lock And Its Accessories (AREA)
Abstract
A one-way back-blocking type door lock comprises a lock body, a handle, a core bar, a limiting piece, a lug, a spring, a steel ball, a groove, a circular groove and the like. The core bar of the handle is connected in the lock body in a sleeving mode and can do radial movement in the lock body. The limiting piece is arranged on the core bar arranged in the lock body. The groove is formed in the limiting piece. A plurality of concave holes are formed in the inner wall, close to the handle, of the lock body. The spring and the steel ball are arranged in the concave holes. Simultaneously, in the state that the limiting piece is separated from the lug arranged on the inner wall of the lock body, a circumferential groove is formed in the position, corresponding to the steel ball, of the core bar, and in the state that the groove of the limiting piece is sunk into the lug, the circular groove which is matched with the steel ball is formed in the position, corresponding to the steel ball, of the core bar. Due to the fact that a handle assembly of the door lock is arranged in the inner side of a door, one-way back locking of the door lock can be achieved. The one-way back-blocking type door lock is convenient to use, simple in structure and capable of achieving the one-way back blocking.
Description
Affiliated technical field:
The utility model relates to a kind of door lock, and particularly a kind of unidirectional formula door lock of locking can unidirectional counter-locking a door and door lock handle assembly simple in structure.
Background technology:
General door lock all has anti-lock device at interior reveal, but this anti-lock device outside reveal be openable by key, and existing door lock anti-lock device structure more complicated, manufacturing cost height.
The utility model content:
At the technical deficiency of existing the said goods, the purpose of this utility model just provides a kind of unidirectional formula door lock of locking, and is made up of lock body, handle, core bar, banking stop, projection, spring, steel ball, groove, circular groove etc.
The technical scheme that its technical problem that solves the utility model adopts is: the core bar of handle is socketed in the lock body and can radially moves in lock body, be provided with banking stop at the core bar that is positioned at lock body, banking stop is provided with groove, be provided with some shrinkage pools at the lock body inwall near handle, be provided with spring and steel ball in the shrinkage pool, break away from banking stop simultaneously that the core bar corresponding with steel ball is provided with circumferential recess under the state of lock body inwall projection, be absorbed at the groove of banking stop that the core bar corresponding with steel ball is provided with the circular groove that matches with steel ball under the state in the projection.
The utility model beneficial effect: easy to use, simple in structure, can realize unidirectional counter-locking a door.
Description of drawings:
Fig. 1 is structural representation of the present utility model;
Among the figure, 1, lock body, 2, handle, 3, core bar, 4, banking stop, 5, projection, 6, spring, 7, steel ball, 8, groove, 9, circular groove.
The specific embodiment:
As shown in the figure, present embodiment comprises handle 2 and lock body 1, handle 2 and core bar 3 are socketed in the lock body interior 1 and can radially move in lock body 1, be provided with banking stop 4 at the core bar 3 that is positioned at lock body 1, banking stop 4 is provided with groove, be provided with the projection corresponding with groove 5 at lock body 1 inwall near handle 2, on the lock body 1 towards core bar 3 and be positioned on the inwall of same circumference and be provided with four shrinkage pools altogether, be provided with spring 6 and steel ball 7 in the shrinkage pool, simultaneously be provided with circumferential recess 8 at position that banking stop 4 breaks away from lock bodies 1 inwall projection 5 and steel ball 7 corresponding core bars 3, position and the steel ball 7 corresponding core bars 3 that are absorbed in the lock body 1 inwall projection 5 at the groove of banking stop 4 are provided with the circular groove 9 that matches with steel ball 7.Move axially core bar, when making banking stop 4 break away from lock body 1 inwall projection 5, steel ball 7 is to be trapped in the circumferential recess 8 of core bar 3, and core bar 3 can be positioned on this position and freely rotate this moment; Move axially core bar 3 again, when making the groove 8 of banking stop 4 be absorbed in the projection, steel ball can be trapped in another circular groove 9 of core bar, this moment, core bar 3 can not rotate, simultaneously core bar 3 also is positioned in and is unlikely to the position in this position and moves and cause banking stop 4 and lock body 1 inwall projection 5 to break away to make to lock inefficacy, and this door lock handle assembly apparatus just can be realized that in the inboard of door the unidirectional of door lock lock.
Claims (3)
1. unidirectional formula door lock of locking, formed by lock body, handle, core bar, banking stop, projection, spring, steel ball, groove, circular groove etc., it is characterized in that: the core bar of handle is socketed in the lock body and can radially moves in lock body, be provided with banking stop at the core bar that is positioned at lock body, be provided with some shrinkage pools at the lock body inwall near handle, break away from banking stop simultaneously that the core bar corresponding with steel ball is provided with circumferential recess under the state of lock body inwall projection, be absorbed at the groove of banking stop that the core bar corresponding with steel ball is provided with the circular groove that matches with steel ball under the state in the projection.
2. the unidirectional formula door lock of locking according to claim 1, it is characterized in that: described banking stop is provided with groove.
3. the unidirectional formula door lock of locking according to claim 1 is characterized in that: be provided with spring and steel ball in the described shrinkage pool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320074933 CN203050241U (en) | 2013-01-29 | 2013-01-29 | One-way back-blocking type door lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320074933 CN203050241U (en) | 2013-01-29 | 2013-01-29 | One-way back-blocking type door lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203050241U true CN203050241U (en) | 2013-07-10 |
Family
ID=48733207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320074933 Expired - Fee Related CN203050241U (en) | 2013-01-29 | 2013-01-29 | One-way back-blocking type door lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203050241U (en) |
-
2013
- 2013-01-29 CN CN 201320074933 patent/CN203050241U/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: 20130710 Termination date: 20170129 |