CN2170351Y - Automatic alarm theft-proof lock - Google Patents
Automatic alarm theft-proof lock Download PDFInfo
- Publication number
- CN2170351Y CN2170351Y CN 93219728 CN93219728U CN2170351Y CN 2170351 Y CN2170351 Y CN 2170351Y CN 93219728 CN93219728 CN 93219728 CN 93219728 U CN93219728 U CN 93219728U CN 2170351 Y CN2170351 Y CN 2170351Y
- Authority
- CN
- China
- Prior art keywords
- lock
- alarm
- slingshot
- pellet shot
- automatic
- 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 provides an automatic alarm theft-proof lock. On the basis of the existing common door lock structure, the top end of the movable spring of the automatic alarm theft-proof lock is provided with an automatic elastic push pole, a metal contact sheet is arranged on the end surface of a lock body closing to the movable spring, the contact sheet is communicated with an alarm, and therefore, when a key not matched with the automatic alarm theft-proof lock is inserted in a lock hole, because the tooth pitch of the key is different from the certain tooth pitch of the lock, any one point of the automatic elastic push pole is contacted with the metal contact sheet, the alarm can immediately alarm. The utility model has simple structure, easy implementation and low manufacturing cost.
Description
The utility model relates to lock, the particularly a kind of theftproof lock that can report to the police automatically.
Common not with the lock of anti-theft device, as safety cabinet lock, desk lock, door lock and lock or the like, be easy to by the robber with opportunity.Therefore people invented many various, and the theftproof lock that has nothing in common with each other of structure.But because the theft-prevention structure complexity of these locks, shortcomings such as manufacturing cost height fail generally to promote always.
The purpose of this utility model provide a kind of simple in structure, cost is low and can be widely used in the automatic alarm anti-theft device of family's door lock, automobile door lock, safety cabinet lock and desk lock.
Technical solution of the present utility model is: this theftproof lock comprises lock body (1), lock rotor (2), key (3), balance pellet shot from a slingshot (4), movable pellet shot from a slingshot (5), fixed screw (6) and spring (8) composition.Its solution is on the basis of existing door lock, time power fore-set (7) automatically that is with the insulation gum cover is set on the top of movable pellet shot from a slingshot (5), one strip metal contact piece (9) is set on the end face of lock body, the alarm (10) that connects a routine simultaneously at an end of metal contact (9) by lead, the other end of alarm is by power supply (11) serial connection switch (12), and the other end of switch directly is connected with lock body.Thereby when the key that does not match inserted lockhole, it returned any some contacting metal contacts of power fore-set automatically, and this alarm produces alarm signal immediately.
The invention has the advantages that: as long as the burglar holds the key of different model or unblanks by force with other method, this alarm all can be reported to the police, have simultaneously simple in structure, to implement easy, low cost of manufacture, use extensive etc.
Below in conjunction with accompanying drawing the utility model is illustrated.
Fig. 1 is a structural representation of the present utility model;
As shown in Figure 1: this theftproof lock comprises lock body 1, lock rotor 2, key 3, balance pellet shot from a slingshot 4, movable pellet shot from a slingshot 5, fixed screw 6, return power fore-set 7, spring 8, hard contact sheet 9, alarm 10, power supply 11, switch 12 automatically constitutes.Said automatic time power fore-set 7 passes the top that spring 8 is fixed on movable pellet shot from a slingshot, for preventing under normal circumstances to take place false alarm, is being with the insulation gum cover on time power fore-set 7 automatically.Hard contact sheet 9 is screwed on lock body that a part of end face vertical with movable pellet shot from a slingshot, one end of sheet metal is connected by lead and alarm 10, the other end series connection power supply 11 of alarm 10 is tandem tap 12 again, and the other end of switch 12 is connected on the lock body.
When the use matched key, copper spoon tail end is at first connected power switch, and therefore be fixed on automatic the return power fore-set not contacting metal contact on movable pellet shot from a slingshot top because the tooth pitch of key and balance pellet shot from a slingshot keep equilibrium state this moment, and power supply does not have the loop not report to the police.When unblanking by force when the false key of use or with other method, because false key is different with the spoon distance of lock body, therefore after key inserts lockhole, movable pellet shot from a slingshot produces irregular movement, and make automatically return the power fore-set wherein one or more connect metal contacts, power supply produces the loop alarm to begin to report to the police, thereby has reached antitheft purpose.
Claims (1)
1, a kind of automatic alarm anti-theft lock, comprise lock body (1), lock rotor (2), key (3), balance pellet shot from a slingshot (4), movable pellet shot from a slingshot (5), fixed screw (6) and spring (8) are formed, it is characterized in that: time power fore-set (7) automatically that is with the insulation gum cover is set on the top of movable pellet shot from a slingshot (5), on the end face of lock body, and that end near movable pellet shot from a slingshot is provided with a strip metal contact piece (9), the alarm (10) that connects a routine simultaneously at an end of hard contact sheet (9) by lead, the other end of alarm is by power supply (11) serial connection switch (12), and the other end of switch directly is connected with lock body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93219728 CN2170351Y (en) | 1993-07-28 | 1993-07-28 | Automatic alarm theft-proof lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93219728 CN2170351Y (en) | 1993-07-28 | 1993-07-28 | Automatic alarm theft-proof lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2170351Y true CN2170351Y (en) | 1994-06-29 |
Family
ID=33799054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93219728 Expired - Fee Related CN2170351Y (en) | 1993-07-28 | 1993-07-28 | Automatic alarm theft-proof lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2170351Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100398773C (en) * | 2005-05-20 | 2008-07-02 | 车吉东 | Designing method of safety lock |
| CN101566022B (en) * | 2009-06-01 | 2011-12-21 | 李波 | Anti-theft alarm lock cylinder with self-locking function and key thereof |
| CN105239827A (en) * | 2015-11-11 | 2016-01-13 | 西安慧晶智能科技有限公司 | Front handle structure of fingerprint password anti-theft lock |
-
1993
- 1993-07-28 CN CN 93219728 patent/CN2170351Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100398773C (en) * | 2005-05-20 | 2008-07-02 | 车吉东 | Designing method of safety lock |
| CN101566022B (en) * | 2009-06-01 | 2011-12-21 | 李波 | Anti-theft alarm lock cylinder with self-locking function and key thereof |
| CN105239827A (en) * | 2015-11-11 | 2016-01-13 | 西安慧晶智能科技有限公司 | Front handle structure of fingerprint password anti-theft lock |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |