CN2748589Y - Master-keyed lock - Google Patents
Master-keyed lock Download PDFInfo
- Publication number
- CN2748589Y CN2748589Y CN 200420112085 CN200420112085U CN2748589Y CN 2748589 Y CN2748589 Y CN 2748589Y CN 200420112085 CN200420112085 CN 200420112085 CN 200420112085 U CN200420112085 U CN 200420112085U CN 2748589 Y CN2748589 Y CN 2748589Y
- Authority
- CN
- China
- Prior art keywords
- pearl
- bead
- lock
- lock body
- core
- 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.)
- Ceased
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Abstract
The utility model relates to a padlock, in particular to a master-keyed lock. The master-keyed lock comprises a lock body and a lock core. A plurality of bead holes which are communicated with each other are respectively arranged on the lock core and the lock body. A lower bead is arranged inside each bead hole of the lock core, and the lower beads are post bodies with different length. A middle bead and an upper bead are arranged inside each bead hole of the lock body. The middle beads are post bodies with random length. The upper bead is a hollow bead, and a spring is arranged inside the hollow of the hollow bead. The end parts of the lower beads and the middle beads are in a two-to-two opposite mode. The master-keyed lock also comprises a key, and the depth of the key teeth of the key is different. When the lower beads are prized by the key, the end parts of the lower beads and the middle beads which are in the two-to-two opposite mode are positioned on the same straight line, and the straight line is aligned on the interface of the lock body and the lock core. The utility model has good anti-theft performance and wide purposes.
Description
Technical field
The utility model is a kind of padlock, particularly a kind of primary and secondary lock.
Background technology
In the prior art, padlock comprises lock body and core, respectively is provided with a plurality of hole of beads that communicate with each other on core and the lock body; Respectively be provided with a following pearl in each core hole of bead, described pearl down is uneven in length cylinder; Respectively be provided with one in each lock body hole of bead and go up pearl, be provided with spring above the last pearl; It is described that pearl is relative in twos with last pearl down.When inserting as key, pearl under the key bit jack-up makes pearl and following pearl end facing each other be in straight line, and this aligned can be opened padlock on the interface of lock body and core.The padlock of this structure, its theftproof performance is not good.
Summary of the invention
The purpose of this utility model is that improvement has padlock now and invents a kind of middle pearl that is equipped with, and last pearl is used hollow bead instead, can improve the primary and secondary lock of theftproof performance greatly.
The utility model is realized as follows: described primary and secondary lock comprises lock body and core, respectively is provided with a plurality of hole of beads that communicate with each other on core and the lock body; Respectively be provided with a following pearl in each core hole of bead, described pearl down is the different cylinder of length; Respectively be provided with a middle pearl and one in each lock body hole of bead and go up pearl, described in pearl be uneven in length cylinder, described to go up pearl be hollow bead, is provided with spring in hollow; The end of following pearl and middle pearl is relative in twos; Described primary and secondary lock also comprises a key, and the degree of depth of its key bit has nothing in common with each other, and when under the key jack-up during pearl, following pearl and middle pearl end facing each other are in a straight line, and this aligned is on the interface of lock body and core.
Described a plurality of hole of bead is three.
Good effect of the present utility model is as follows:
The utility model has changed the single effect that an original key can only be opened a padlock, and key of the present utility model then can be opened through all padlocks in the layout process range, thereby has improved the theftproof performance of lock greatly; The utility model is of many uses, is applicable to civil aviaton, passenger train, automobile, hotel, supermarket, bathroom etc.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described further.
Fig. 1 is the utility model structure chart
Among the figure, 1 core, 2 lock bodies, 3 times pearls, pearl in 4, pearl on 5, the 6 lock body hole of beads, the 7 core hole of beads, 8 springs, 9 lock body core interfaces, 10 keys.
The specific embodiment
As shown in Figure 1, described primary and secondary lock comprises core 1 and lock body 2, respectively is provided with a plurality of hole of beads that communicate with each other on core 1 and the lock body 2; Respectively be provided with a following pearl 3 in each core hole of bead 7, described pearl 3 down is the different cylinder of length; Respectively be provided with a middle pearl 4 and one in each lock body hole of bead 6 and go up pearl 5, described in pearl 4 be uneven in length cylinder, described last pearl 5 is a hollow bead, is provided with spring 8 in hollow; The end of following pearl 3 and middle pearl 4 is relative in twos; Described primary and secondary lock also comprises a key 10, and the degree of depth of its key bit has nothing in common with each other, and when under key 10 jack-up during pearl 3, following pearl 3 and middle pearl 4 ends facing each other are in a straight line, and this aligned is on lock body core interface 9.
The described lock body hole of bead 6 and the core hole of bead 7 respectively are three.
Claims (2)
1. primary and secondary lock, it is characterized in that: described primary and secondary lock comprises lock body and core, respectively is provided with a plurality of hole of beads that communicate with each other on core and the lock body; Respectively be provided with a following pearl in each core hole of bead, described pearl down is the different cylinder of length; Respectively be provided with a middle pearl and one in each lock body hole of bead and go up pearl, described in pearl be uneven in length cylinder, described to go up pearl be hollow bead, is provided with spring in hollow; The end of following pearl and middle pearl is relative in twos; Described primary and secondary lock also comprises a key, and the degree of depth of its key bit has nothing in common with each other, and when under the key jack-up during pearl, following pearl and middle pearl end facing each other are in a straight line, and this aligned is on the interface of lock body and core.
2. primary and secondary lock according to claim 1 is characterized in that: the described lock body hole of bead and the core hole of bead respectively are three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420112085 CN2748589Y (en) | 2004-11-05 | 2004-11-05 | Master-keyed lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420112085 CN2748589Y (en) | 2004-11-05 | 2004-11-05 | Master-keyed lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2748589Y true CN2748589Y (en) | 2005-12-28 |
Family
ID=35720081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420112085 Ceased CN2748589Y (en) | 2004-11-05 | 2004-11-05 | Master-keyed lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2748589Y (en) |
-
2004
- 2004-11-05 CN CN 200420112085 patent/CN2748589Y/en not_active Ceased
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C35 | Partial or whole invalidation of patent or utility model | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20061121 Decision number of declaring invalidation: 8832 |