CN201933859U - Lock hole protection device - Google Patents
Lock hole protection device Download PDFInfo
- Publication number
- CN201933859U CN201933859U CN2011200209911U CN201120020991U CN201933859U CN 201933859 U CN201933859 U CN 201933859U CN 2011200209911 U CN2011200209911 U CN 2011200209911U CN 201120020991 U CN201120020991 U CN 201120020991U CN 201933859 U CN201933859 U CN 201933859U
- Authority
- CN
- China
- Prior art keywords
- lock hole
- keyhole
- spiral cover
- sprue
- cover tube
- 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
The utility model discloses a lock hole protection device, which includes a spiral casing cylinder. The inner end of the spiral casing cylinder is used for fixed connection with the part of a door where a lock hole is arranged. A stopping block of the lock hole is in threaded connection with the inside of the spiral casing cylinder. Two or more thrust grooves are disposed on the surface of the outer end of the stopping block of the lock hole. In installation, the inner end of the spiral casing cylinder is in fixed connection with the part of the door where the lock hole is arranged; and when protection for the lock hole is needed, a specific key is inserted into the thrust grooves disposed on the stopping block of the lock hole, and the stopping block of the lock hole is screwed into the spiral casing cylinder up to the inner end. Thereby, the stopping block of the lock hole can not be taken out of the spiral casing cylinder without the specific key, so that the lock hole is protected. Illegal unlocking through the lock hole is avoided and meanwhile, the lock hole is prevented from being destroyed.
Description
Technical field
The utility model relates to a kind of anti-theft device, especially a kind of keyhole protection device.
Background technology
Needs such as in the modern society life, that people have is antitheft widely, secret protection so just make various locksets obtain use widely, for preventing that the bad person from stealing the very big effect of having played.Antitheft is the relation of lance and shield with stealing, and still has the stolen person of lockset in many places to open by keyhole or by keyhole lock is destroyed in the reality.At present, be not exclusively used in the anti-theft device of protection keyhole on the market.
The utility model content
The purpose of this utility model is to provide a kind of keyhole protection device.
For achieving the above object; keyhole protection device of the present utility model comprises spiral cover tube, and the inner of spiral cover tube is used for being connected with the Men Tixiang at keyhole place; be bolted with the keyhole sprue in the spiral cover tube, the outer end face of described keyhole sprue is provided with plural stressed groove.
Described keyhole sprue outer end face is provided with three stressed grooves.
The utlity model has following advantage:
1. the inner of spiral cover tube is connected on the door body at keyhole place when installing, and in the time of need protecting keyhole, uses in the stressed groove on the private key insertion keyhole sprue, the rotation of keyhole sprue is screwed into spiral cover tube, up to the inner that is screwed onto spiral cover tube.Do not have private key just the keyhole sprue can't be taken out in spiral cover tube like this, thereby protected keyhole, the thief can't be unblanked by keyhole, can't destroy keyhole yet.
2. described keyhole sprue is provided with three stressed grooves away from the outer end face of door lock; make when turning the keyhole sprue private key and keyhole sprue stressed evenly; only need to change the angle between the stressed groove simultaneously; can correspondingly produce different private keys, realization one can only be opened private key the function of a keyhole protection device.
Description of drawings
Fig. 1 is the sectional structure schematic diagram that the utility model matches with the door body;
Fig. 2 is the left view of spiral cover tube among Fig. 1;
Fig. 3 is the structural representation of private key;
Fig. 4 is the A-A sectional view of Fig. 3.
The specific embodiment
As depicted in figs. 1 and 2; keyhole protection device of the present utility model comprises spiral cover tube 1; the inner of spiral cover tube 1 is used for being connected mutually with the door body 4 at keyhole 2 places; be bolted with keyhole sprue 3 in the spiral cover tube 1; the outer end face of described keyhole sprue 3 is provided with three stressed grooves 5, and the number of stressed groove 5 also can be for more than two or four.Wherein, can also can only be arranged on the inner of spiral cover tube 1 along setting is all arranged on the length direction of spiral cover tube with the screw thread of keyhole sprue 3 bolts on spiral cover tube 1 inner surface.
As shown in Figure 3 and Figure 4, the private key that need use when the utility model uses comprises the body of rod 6, the body of rod 6 one ends are provided with handle 7, the body of rod 6 other ends are provided with fluted disc 9, it is identical with the number of corresponding number that convexes with three dentation raised line 8(dentation raised lines 8 of described stressed groove 5 and described stressed groove 5 that fluted disc 9 is provided with), dentation raised line 8 is used for inserting stressed groove 5 and drives 3 rotations of keyhole sprues by stressed groove 5.
The inner of spiral cover tube 1 is connected on the door body 4 at keyhole 2 places during installation; in the time of need protecting keyhole 2; in the stressed groove 5 on the dentation raised line 8 insertion keyhole sprues 3 of private key; rotary handle 7 then; make dentation raised line 8 drive 3 rotations of keyhole sprue; thereby keyhole sprue 3 is screwed into spiral cover tube 1, up to the inner that is screwed onto spiral cover tube 1.Do not have private key just keyhole sprue 3 can't be taken out in spiral cover tube 1 like this, thereby protected keyhole 2, the thief can't be unblanked by keyhole 2, can't destroy keyhole 2 yet.In the time of need unblanking, use the private key reverse rotation, thereby keyhole sprue 3 is back-outed from the 1 inner rotation of spiral cover tube, up to cooperating with spiral cover tube 1 disengage threads, can take out keyhole sprue 3 and carry out normal unlock operation this moment.
During manufacturing; only need to change the angle between the stressed groove 5; can correspondingly produce different private keys; the dentation raised line 8 of a private key can only be inserted among the stressed groove 5 of a keyhole protection device, thereby realize that a private key can only open the function of a keyhole protection device.
Claims (2)
1. keyhole protection device, it is characterized in that: comprise spiral cover tube, the inner of spiral cover tube is used for being connected with the Men Tixiang at keyhole place, is bolted with the keyhole sprue in the spiral cover tube, and the outer end face of described keyhole sprue is provided with plural stressed groove.
2. keyhole protection device according to claim 1 is characterized in that: described keyhole sprue outer end face is provided with three stressed grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200209911U CN201933859U (en) | 2011-01-24 | 2011-01-24 | Lock hole protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200209911U CN201933859U (en) | 2011-01-24 | 2011-01-24 | Lock hole protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201933859U true CN201933859U (en) | 2011-08-17 |
Family
ID=44445382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200209911U Expired - Fee Related CN201933859U (en) | 2011-01-24 | 2011-01-24 | Lock hole protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201933859U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196336A (en) * | 2014-06-27 | 2014-12-10 | 冯政 | Manufacturing and use method of adhesion type lock blocking device |
-
2011
- 2011-01-24 CN CN2011200209911U patent/CN201933859U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196336A (en) * | 2014-06-27 | 2014-12-10 | 冯政 | Manufacturing and use method of adhesion type lock blocking device |
| CN104196336B (en) * | 2014-06-27 | 2016-08-24 | 冯政 | Adhesive blocks up the method for manufacture and use thereof of lock device |
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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: 20110817 Termination date: 20170124 |