CN1274934C

CN1274934C - Separation and reunion type theftproof lock

Info

Publication number: CN1274934C
Application number: CN 200410008389
Authority: CN
Inventors: 杨才中; 祁志刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-03-13
Filing date: 2004-03-13
Publication date: 2006-09-13
Anticipated expiration: 2024-03-13
Also published as: CN1563654A

Abstract

The present invention discloses an engaging and disengaging type anti-theft lock which comprises a lock casing and a lock core which is arranged inside the lock casing, wherein the lock core comprises an inner lock core and an outer lock core sheathed on the outer side of the inner lock core; the end surface of the outer lock core is provided with engaging and disengaging grooves; engaging and disengaging inserting plates can be inserted into the engaging and disengaging grooves; a driving rod is arranged on the engaging and disengaging inserting plates; the outer end of the driving rod extends from the lock casing; springs are arranged on the driving rod in the lock casing. The lock core of the present invention can be linked with the driving rod by only using a key of the lock, and keys which do not belong to the lock can only make the lock core and the driving rods ineffectively rotate under a disengaging state, so that a master key can not obtain an unlocking supporting point of the teasing and pressing sense. The present invention can effectively prevent the unlocking tools with the technique, such as the master keys, etc. The lock core of the present invention has limitless rotary performance, so the anti-drilling performance is good. When the lock core is concave inwards because of the gravitational impact, the lock core is still disengaged from the driving rods. The present invention has the advantages of simple structure, low cost, convenient use and installation, and strong adaptability and can effectively prevent the lock from being drilled, pried, impacted and opened by the technique.

Description

Clutch type anti-theft lock

Affiliated technical field

The present invention relates to a kind of lock, relate to a kind of clutch type anti-theft lock specifically.

Background technology

The lockset that uses adopts lock core fixed conveyor bar to rotate the conventional art that drives dead bolt mostly now, and is simple in structure easy-to-use, but theftproof performance is relatively poor.Along with the raising of people's security precautions, the theftproof performance of lockset more and more is much accounted of, and its product is also being updated: on tapered end, and the employing cross lock that has, the dull and stereotyped lock of the employing that has, what also have sets up metal cap, anti-drilling sheet etc. in the tapered end outer end; Aspect lock core, its technical measures focus mostly on and are improving key, adopt multiple tooth key of many ribs and equipped mutually pellet shot from a slingshot aspect, in the hope of reducing the mutual opening rate of key.But this lock uses master key or other aids concerning the experience person that necessarily unblanks is arranged, and lock core rotates through dialling to press, by feel or sound, still can more easily open, fundamentally do not solve the problem of pressing pellet shot from a slingshot to unblank of dialling, therefore, the theftproof performance of these cylinder locks is relatively poor.

Summary of the invention

In order to improve existing cylinder lock theftproof performance, the invention provides a kind of clutch type anti-theft lock, this anti-theft lock structure is simple, and is with low cost, easy to install, and theftproof performance is strong, can be effectively anti-drilling, pick-proof, anti-collision, prevent technical opening.

The technical solution adopted in the present invention is:

A kind of clutch type anti-theft lock, comprise lock housing and be installed in the interior lock core of lock housing, its structural feature is: said lock core comprises internal cylinder, this internal cylinder outside suit outer lock core, the inner face of this outer lock core is provided with the clutch groove, and the clutch plate of can pegging graft in this clutch groove is installed drive link on this clutch plate, lock housing is stretched out in the outer end of this drive link, mounting spring on the drive link in lock housing.During use, the pressure of spring enters in the clutch groove clutch plate, this moment, drive link and lock core socket joint were connected as one with key turns, the control dead bolt is opened lock or locking, push inward with key afterwards, internal cylinder promotes the clutch plate and breaks away from the clutch groove, makes drive link and lock core be in disengaged position, thereby uncontrollable dead bolt.

Said outer lock core is provided with L type chute, and the sliding pin that can slide in L type chute is installed on the said internal cylinder.Internal cylinder both can be endwisely slipped in outer lock core, again can be at the outer lock core internal diameter to rotation.During use, by key turns the sliding pin of internal cylinder is entered in the axial groove of outer lock core L type chute, the pressure of spring enters in the clutch groove clutch plate, the back one is with key turns so drive link and outer lock core are pegged graft, so just lock can be opened or locking, push inward with key afterwards, the sliding pin of internal cylinder is entered in the radial slot of outer lock core L type chute, and internal cylinder promotes the clutch plate and breaks away from the clutch groove, can't drive drive link when internal cylinder is rotated and rotate, thereby can't open and close lockset.This moment, lock core can infinitely rotate, and reached anti-drilling, prevented technical opening, the purpose of anti-collision.

Said lock housing is provided with pin-and-hole, installing and locating bearing pin in this pin-and-hole, and said outer lock core is provided with locating slot, and alignment pin assigns in the locating slot.By the effect of alignment pin and locating slot, can prevent that lock core from moving axially, do not influence lock core simultaneously again and in lock housing, radially rotate.

Said clutch groove can be the cross slotted eye, and the clutch plate corresponding with the clutch groove can be the cross plate.

Be with fixedly dial on the said lock housing, the rotational password dish is installed on the lock core, the dials of three bands of the outer slip suit of said drive link shifting block, drive link can slide therein.

The invention has the beneficial effects as follows, in order to overcome existing lockset by master key and rigid processing pirate of the open, the present invention adopts the compound control structure of dual lock core, have only the key of this lockset just can make lock core interlock drive link, non-lockset key can only make the invalid rotation under disengaged position of lock core and drive link; The present invention can not find master key and dials pressure sensitivity feel unlatching fulcrum, can effectively prevent technology unlocking instruments such as master key, because lock core of the present invention has unlimited rotatory, so anti-drilling function admirable when lock core caves in through gravity impact, still is separated with drive link.The present invention is simple in structure, uses simple installation, and compliance is strong, can be effectively anti-drilling, pick-proof, anti-collision, prevent technical opening.

Description of drawings

The present invention will be further described below in conjunction with drawings and Examples.

Fig. 1 is a structural representation of the present invention.

Fig. 2 is the structural representation that the clutch plate breaks away from the clutch slot among Fig. 1.

Fig. 3 is used for the structural representation of coded lock for the present invention.

Fig. 4 is a clutch plate structural representation among Fig. 1.

Fig. 5 is the lateral view of Fig. 4.

Fig. 6 is Fig. 1 China and foreign countries lock core structure schematic diagrames.

Fig. 7 is the lateral view of Fig. 6.

Among the figure, 1. drive link, 2. spring, 3. lock housing, 4. clutch plate, 5. clutch groove, 6. chute, 7. sliding pin, 8. locating slot, 9. outer lock core, 10. internal cylinder, 11. alignment pin, 12. dials, 13. shifting blocks, 14. combination disk.

The specific embodiment

Embodiment 1: as Fig. 1, shown in Figure 2, a kind of clutch type anti-theft lock, comprise lock housing 3 and be installed in the interior lock core of lock housing, this lock core comprises the internal cylinder 10 of outer end band key hole, this internal cylinder outside suit outer lock core 9, it between internal cylinder and the outer lock core slidable fit, be that internal cylinder can endwisely slip with respect to outer lock core, internal cylinder also can radially be rotated with respect to outer lock core simultaneously, outer lock core structure such as Fig. 6, shown in Figure 7, outer lock core is provided with L type chute 6, and this chute can be positive L type chute, also can be the inverted L shape chute, sliding pin 7 is installed on the internal cylinder, and sliding pin can slide in L type chute, and said lock housing is provided with pin-and-hole, installing and locating bearing pin 11 in this pin-and-hole, said outer lock core is provided with locating slot 8, and alignment pin assigns in the locating slot, by the effect of alignment pin and locating slot, can prevent that outer lock core from moving axially, not influence outer lock core simultaneously again and in lock housing, radially rotate.The inner of said outer lock core is provided with clutch groove 5, this clutch groove can be cross, as Fig. 7, clutch plate 4 also is the cross plate that is complementary with the clutch recess hole, as Fig. 4, shown in Figure 5, the clutch plate engages and can rotate with lock core with the clutch groove, and at this moment sliding pin enters in the axial groove of L type chute; Press inwards when internal cylinder, head on the clutch plate and break away from the clutch groove, as shown in Figure 2, the clutch plate does not then rotate with lock core, and at this moment sliding pin enters in the radial slot of L type chute, and drive link 1 is installed on the clutch plate, lock housing is stretched out in the outer end of this drive link, and mounting spring 2 on the drive link of lock housing.During use, by key turns the sliding pin of internal cylinder is entered in the axial groove of outer lock core L type chute, the pressure of spring enters in the clutch groove clutch plate, the back one is with key turns so drive link and outer lock core are pegged graft, so just lock can be opened or locking, push inward promptly with key afterwards and move axially, the sliding pin of internal cylinder is entered in the radial slot of outer lock core L type chute, and internal cylinder promotes the clutch plate and breaks away from the clutch groove, can't drive drive link when internal cylinder is rotated and rotate, thereby can't open and close lockset.This moment, lock core can infinitely rotate, and reached anti-drilling, prevented that skill is opened, the purpose of anti-collision.

Embodiment 2: as shown in Figure 3, the lock body of embodiment 1 is used on the coded lock, on said lock housing, is with fixedly dial, rotational password dish 14 is installed on the lock core, the dial 12 of three bands of the outer slip suit of said drive link shifting block 13, drive link can slide therein.

Claims

1, a kind of clutch type anti-theft lock, comprise lock housing (3) and be installed in the interior lock core of lock housing, it is characterized in that: said lock core comprises internal cylinder (10), this internal cylinder outside suit outer lock core (9), the inner face of this outer lock core is provided with clutch groove (5), the clutch plate (4) of can pegging graft in this clutch groove, drive link (1) is installed on this clutch plate, lock housing is stretched out in the outer end of this drive link, mounting spring on the drive link in lock housing (2), said outer lock core is provided with L type chute (6), and the sliding pin (7) that can slide in L type chute is installed on the said internal cylinder.

2, clutch type anti-theft lock according to claim 1 is characterized in that: said lock housing is provided with pin-and-hole, installing and locating bearing pin (11) in this pin-and-hole, and said outer lock core is provided with locating slot (8), and alignment pin assigns in the locating slot.

3, clutch type anti-theft lock according to claim 1 is characterized in that: said clutch groove is the cross slotted eye, and the clutch plate corresponding with the clutch groove is the cross plate.

4, clutch type anti-theft lock according to claim 1 and 2, it is characterized in that: be with fixedly dial on the said lock housing, rotational password dish (14) is installed on the lock core, the dial (12) of the outer slip suit of said drive link three bands shifting block (13), drive link can slide therein.