CN105735749A - Anti-theft lock with rotating cam fixing function - Google Patents
Anti-theft lock with rotating cam fixing function Download PDFInfo
- Publication number
- CN105735749A CN105735749A CN201610066024.6A CN201610066024A CN105735749A CN 105735749 A CN105735749 A CN 105735749A CN 201610066024 A CN201610066024 A CN 201610066024A CN 105735749 A CN105735749 A CN 105735749A
- Authority
- CN
- China
- Prior art keywords
- pin
- lock core
- rotation cam
- lock
- plectrum
- 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.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B17/00—Accessories in connection with locks
- E05B17/20—Means independent of the locking mechanism for preventing unauthorised opening, e.g. for securing the bolt in the fastening position
- E05B17/2084—Means to prevent forced opening by attack, tampering or jimmying
- E05B17/2092—Means responsive to tampering or attack providing additional locking
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
Abstract
The invention discloses an anti-theft lock with a rotating cam fixing function. The anti-theft lock comprises a shell, a lock core, a paddle, a baffle, a rotating cam, a moving pin and a clamping pin, wherein the lock core is arranged in the shell; the front end of the paddle is connected with the rear end of the lock core; the baffle is arranged at the rear part of the shell; a plurality of braking holes are formed in the rotating cam; the rotating cam is arranged on the baffle; the rear end of the paddle is connected with the rotating cam; the moving pin is arranged in the shell; the front end of the moving pin is connected with the shell through a first spring; the rear end of the moving pin corresponds to the braking holes; a guiding hole is formed in the moving pin; the clamping pin comprises a first pin column, a second pin column and a third pin column; one end of the first pin column is propped against the side wall of the lock core; the other end of the first pin column is sleeved in the guiding hole; one end of the second pin column is sleeved in the guiding hole and propped against the other end of the first pin column; the other end of the second pin column extends out of the guiding hole; one end of the third pin column is propped against the other end of the second pin column; and the other end of the third pin column is connected with the shell through a second spring. According to the anti-theft lock provided by the invention, the lock core can be firmly and reliably locked up; and besides, the anti-theft lock is simple in structure and low in manufacturing cost.
Description
Technical field
The present invention relates to theftproof lock field, particularly to the theftproof lock of a kind of fixing rotation cam.
Background technology
Theftproof lock is generally made up of lock body, rotation lock core, drive mechanism, main insurance locking bolt and latch bolt etc..Rotating lock core is critical component, and it includes rotation lock core marble group.The action and the movement range that rotate lock core marble are determined by key, only run into correct key, rotate lock core marble and just can move to tram, and lock core just can rotate or the motion of other form, and then drives drive mechanism to complete unlocking action.Theftproof lock on market, change in any case, the design of most locksets has a common feature, namely before unlocking mechanism action, each pellet group is relevant to other to be unblanked to be in all the time between actuator and contacts with each other or certain contact status, making technical opening lockset there is probability, theftproof performance is not high.
In order to improve the protection level of theftproof lock, Most designers is all done the best and is made lock core internal structure complicate, it is novel unique to strive, strengthen size of key, its shortcoming is in that to increase required precision and manufacture difficulty, and cost also improves therewith, and do so may result in mechanical strength and reduces, need again to prevent from destroying with elevating mechanism intensity with special quality material, improve manufacturing cost further.The anti-technical opening ability of lockset also having is relatively strong, but unlocking operation process is comparatively laborious.
It is disclosed in the information of this background section and is merely intended to increase the understanding of the general background to the present invention, and be not construed as admitting or imply in any form that this information structure is for prior art that persons skilled in the art are known.
Summary of the invention
It is an object of the invention to provide the theftproof lock of a kind of fixing rotation cam, thus overcoming the shortcoming that structure is complicated and manufacturing cost is higher of theftproof lock that existing protection level is high.
For achieving the above object, the invention provides the theftproof lock of a kind of fixing rotation cam, wherein, including: housing；Lock core, it is rotatably arranged in described housing, and the front end of this lock core is the one end being provided with keyhole；The rear end of plectrum, its front end and described lock core is attached；Baffle plate, it is arranged at the rear portion of described housing；Rotating cam, it is provided with several brake holes along same even circumferential；This rotation cam is rotatably arranged on described baffle plate, and the rear end of described plectrum and this rotation cam are attached；Removable pin, it is can be arranged in described housing in the way of slide anteroposterior；The front end of this removable pin and described housing are attached by one first spring, and the rear end of this removable pin is corresponding with the brake hole on described rotation cam；This removable pin is provided with a pilot hole being perpendicular to its axis；And bayonet lock, comprising: the first pin, its one end acts against on the sidewall of described lock core, and the other end of this first pin is movably set in described pilot hole；Second pin, its one end is movably set in described pilot hole and acts against the other end of described first pin；The other end of this second pin stretches out in outside described pilot hole；The length of this second pin is at least equal with the length of described pilot hole；And the 3rd pin, its one end acts against the other end of described second pin, and the other end of the 3rd pin is attached by one second spring with described housing.
Preferably, in technique scheme, described rotation cam is in the form of annular discs.
Preferably, in technique scheme, described rotation cam is convexly equipped in the back plate face of described baffle plate.
Preferably, in technique scheme, the rear end of described lock core is provided with a cross clamping groove, and a cross fixture block inlay card is passed through in described cross clamping groove in the front end of described plectrum.
Preferably, in technique scheme, described rotation cam is provided with a word draw-in groove, and described plectrum is tabular, and the rear end card of described plectrum is embedded in a described word draw-in groove.
Preferably, in technique scheme, described rotation cam is provided with four described brake holes along same even circumferential.
Compared with prior art, there is advantages that
The present invention, when lock core is destroyed by external force and to be subjected to displacement, is stuck in the brake hole rotating cam by removable pin, and lock core just can not rotate, and various unlocking tools will be unable to play a role, and it can locked lock core solid and reliablely.The present invention sets up the structure for locked lock core in common locking, its simple in construction and low cost of manufacture, is suitable for batch production.It addition, the present invention does not limit to is applied to antitheft door, safety cabinet, national treasury etc. other lock and be environmentally used as.
Accompanying drawing explanation
Fig. 1 fixes according to the present invention to rotate the top view that the removable pin of theftproof lock of cam, bayonet lock carry out coordinating with lock core.
Fig. 2 is the rearview fixing the theftproof lock rotating cam according to the present invention.
Fig. 3 is the structural representation of the removable pin according to the present invention.
Main Reference Numerals illustrates:
1-housing；2-lock core；3-plectrum；4-baffle plate；5-rotates cam, 51-brake hole；6-removable pin, 61-pilot hole；7-the first spring；8-bayonet lock, 81-the first pin, 82-the second pin, 83-the 3rd pin；9-the second spring.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail, it is to be understood that protection scope of the present invention is not by the restriction of detailed description of the invention.
Explicitly indicate that unless otherwise other, otherwise in entire disclosure and claims, term " includes " or its conversion will be understood to comprise the element or ingredient stated at such as " comprising " or " including " etc., and does not get rid of other element or other ingredient.
Fig. 1 to Fig. 3 shows the structural representation of the theftproof lock of a kind of according to the preferred embodiment of the present invention fixing rotation cam, this fixing theftproof lock rotating cam includes housing 1, lock core 2, plectrum 3, baffle plate 4, rotates cam 5, removable pin 6 and bayonet lock 8, with reference to Fig. 1 and Fig. 2, the sidewall of lock core 2 is the face of cylinder, lock core 2 is rotatably arranged in housing 1, and the front end of lock core 2 is the one end being provided with keyhole, under normal condition, lock core 2 can be freely rotatable, thus realizing opening or closing of lock.Plectrum 3 is in flat tabular, and its length × wide specification is 7mm × 3mm.The rear end of the front end of plectrum 3 and lock core 2 is attached, so that plectrum 3 can rotate along with lock core 2 in normal state.Preferably, the rear end of lock core 2 is provided with a cross clamping groove, and a cross fixture block inlay card is passed through in cross clamping groove in the front end of plectrum 3.
With continued reference to Fig. 2, baffle plate 4 is fixedly installed on the rear portion of housing 1.It is discoid for rotating cam 5, rotates, on cam 5, same even circumferential is provided with several brake holes 51, it is preferable that the quantity of brake hole 51 is four.Rotate cam 5 to be rotatably arranged on baffle plate 4, and preferably, rotate cam 5 and be convexly equipped in the back plate face of baffle plate 4.The rear end of plectrum 3 is attached with rotating cam 5, under normal condition, rotates cam 5 by plectrum 3 along with lock core 2 rotates, not affect the normal use of lock core 2.Preferably, the centre rotating cam 5 is provided with a word draw-in groove, and the specification of a word draw-in groove can be 8mm × 3.5mm, and owing to plectrum 3 is inclined tabular, the rear end of plectrum 3 can directly be blocked and is embedded in a word draw-in groove.
With continued reference to Fig. 1, removable pin 6 is being arranged in housing 1 in the way of slide anteroposterior, removable pin 6 and lock core 2 be arranged in parallel, the front end of removable pin 6 is attached by one first spring 7 with housing 1, and the rear end of removable pin 6 is corresponding with the brake hole 51 rotated on cam 5, when removable pin 6 is moved rearwards by, it can movable insert in the brake hole 51 aligned with it.Preferably, the diameter of brake hole 51 is 3.3mm to the present invention, and the diameter of removable pin 6 is 3mm, and the distance at the center of the center of circle of brake hole 51 and rotation cam 5 is 16mm, and the distance at the center of the axis of removable pin 6 and rotation cam 5 is also 16mm.It addition, with reference to Fig. 3, removable pin 6 is provided with a pilot hole 61 being perpendicular to its axis.
With continued reference to Fig. 1, bayonet lock 8 includes the first pin the 81, second pin 82 and the 3rd pin 83, one end of first pin 81 acts against on the sidewall of lock core 2, and first the other end of pin 81 be movably set in the pilot hole 61 of removable pin 6, one end of second pin 82 is movably set in pilot hole 61, and second pin 82 one end of being sheathed in pilot hole 61 act against the other end of the first pin 81, the other end of the second pin 82 stretches out in outside pilot hole 61, and the length of the second pin 82 is at least equal with the length of pilot hole 61.One end of 3rd pin 83 acts against the other end of the second pin 82, and the other end of the 3rd pin 83 is attached by one second spring 9 with housing 1.It is movable contact between first pin the 81, second pin 82 and the 3rd pin 83 three, together with simply acting against at same straight line the second spring 9 three under the effect of pilot hole 61.
The present invention is when normal operating condition, lock core 2 is just to the first pin 81, second spring 9 is in compressive state, and first pin 81 and the second pin 82 part be sheathed in the pilot hole 61 of removable pin 6, first spring 7 is also at compressive state, the rear end of removable pin 6 is positioned at the front of rotating boss 5, and it does not contact with rotating boss 5.When lock core 2 is destroyed by force by external force, lock core 2 can offset, thus being no longer aligned with the first pin 81, then the second spring 9 will eject three pins together to the side at lock core 2 place, when 82 the first pins 81 of the second pin eject pilot hole 61 completely, under the effect of the first spring 7, removable pin 6 is just moved rearwards by together with the second pin 82, when lock core 2 opened by force and turn to rotate cam 5 one of them brake hole 51 align removable pin 6 time, the rear end of removable pin 6 will be inserted in this brake hole 51, removable pin 6 limits the rotation of lock core 2 by restricting the rotation rotating cam 5, thus locked lock core 2, to avoid lock to be forcibly opened, reach antitheft purpose.Therefore, the present invention is stuck in the brake hole 51 rotating cam 5 by removable pin 6, and lock core 2 just can not rotate, and various unlocking tools will be unable to play a role, and it can locked lock core 2 solid and reliablely.
The present invention sets up the structure for locked lock core 2, its simple in construction and low cost of manufacture in common locking, and is suitable for batch production.It addition, the present invention does not limit to is applied to antitheft door, safety cabinet, national treasury etc. other lock and be environmentally used as.
The aforementioned description to the specific illustrative embodiment of the present invention illustrates that and the purpose of illustration.These describe and are not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to above-mentioned instruction, it is possible to carry out much changing and change.Purpose exemplary embodiment selected and describe is in that to explain the certain principles of the present invention and practical application thereof, so that those skilled in the art is capable of and utilizes the various different exemplary of the present invention and various different selection and change.The scope of the present invention is intended to be limited by claims and equivalents thereof.
Claims (6)
1. the fixing theftproof lock rotating cam, it is characterised in that including:
Housing；
Lock core, it is rotatably arranged in described housing, and the front end of this lock core is the one end being provided with keyhole；
The rear end of plectrum, its front end and described lock core is attached；
Baffle plate, it is arranged at the rear portion of described housing；
Rotating cam, it is provided with several brake holes along same even circumferential；This rotation cam is rotatably arranged on described baffle plate, and the rear end of described plectrum and this rotation cam are attached；
Removable pin, it is can be arranged in described housing in the way of slide anteroposterior；The front end of this removable pin and described housing are attached by one first spring, and the rear end of this removable pin is corresponding with the brake hole on described rotation cam；This removable pin is provided with a pilot hole being perpendicular to its axis；And
Bayonet lock, comprising:
First pin, its one end acts against on the sidewall of described lock core, and the other end of this first pin is movably set in described pilot hole；
Second pin, its one end is movably set in described pilot hole and acts against the other end of described first pin；The other end of this second pin stretches out in outside described pilot hole；The length of this second pin is at least equal with the length of described pilot hole；And
3rd pin, its one end acts against the other end of described second pin, and the other end of the 3rd pin is attached by one second spring with described housing.
2. the theftproof lock of fixing rotation cam according to claim 1, it is characterised in that described rotation cam is in the form of annular discs.
3. the theftproof lock of fixing rotation cam according to claim 2, it is characterised in that described rotation cam is convexly equipped in the back plate face of described baffle plate.
4. the theftproof lock of fixing rotation cam according to claim 1, it is characterised in that the rear end of described lock core is provided with a cross clamping groove, a cross fixture block inlay card is passed through in described cross clamping groove in the front end of described plectrum.
5. the theftproof lock of fixing rotation cam according to claim 4, it is characterised in that described rotation cam is provided with a word draw-in groove, and described plectrum is tabular, the rear end card of described plectrum is embedded in a described word draw-in groove.
6. the theftproof lock of fixing rotation cam according to claim 1, it is characterised in that on described rotation cam, same even circumferential is provided with four described brake holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610066024.6A CN105735749B (en) | 2016-01-29 | 2016-01-29 | A kind of theftproof lock of fixed rotation cam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610066024.6A CN105735749B (en) | 2016-01-29 | 2016-01-29 | A kind of theftproof lock of fixed rotation cam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105735749A true CN105735749A (en) | 2016-07-06 |
| CN105735749B CN105735749B (en) | 2017-10-27 |
Family
ID=56248058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610066024.6A Active CN105735749B (en) | 2016-01-29 | 2016-01-29 | A kind of theftproof lock of fixed rotation cam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105735749B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2045012U (en) * | 1989-04-08 | 1989-09-27 | 济南制锁总厂 | Cylinder door lock with hand touch secret code |
| EP0777023B1 (en) * | 1992-01-13 | 2002-08-21 | C & M TECHNOLOGY, INC. | High security lock mechanism |
| CN1459544A (en) * | 2002-05-19 | 2003-12-03 | 纽音固股份有限公司 | Anti-picking device for lock |
| CN202706688U (en) * | 2012-07-03 | 2013-01-30 | 北华大学 | Blocking-type mechanical anti-theft lock |
-
2016
- 2016-01-29 CN CN201610066024.6A patent/CN105735749B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2045012U (en) * | 1989-04-08 | 1989-09-27 | 济南制锁总厂 | Cylinder door lock with hand touch secret code |
| EP0777023B1 (en) * | 1992-01-13 | 2002-08-21 | C & M TECHNOLOGY, INC. | High security lock mechanism |
| CN1459544A (en) * | 2002-05-19 | 2003-12-03 | 纽音固股份有限公司 | Anti-picking device for lock |
| CN202706688U (en) * | 2012-07-03 | 2013-01-30 | 北华大学 | Blocking-type mechanical anti-theft lock |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105735749B (en) | 2017-10-27 |
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