CN101429829B

CN101429829B - Burglarproof lock

Info

Publication number: CN101429829B
Application number: CN2007101699831A
Authority: CN
Inventors: 高强
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-11-10
Filing date: 2007-11-10
Publication date: 2011-11-30
Anticipated expiration: 2027-11-10
Also published as: CN101429829A

Abstract

The invention relates to a lock with a special structure. Aiming at overcoming the defects in the prior art that a code operation part of an anti-theft lock which is in the long-time locking state is exposed and easily damaged, the invention provides an anti-theft lock. The key points of the anti-theft lock are as follows: a coded lock moves in a sleeve of a lock box through a guiding rod, a rotary disk sleeved on a lock sleeve is connected with the operation part through a flat shifting fork, a first radial plate on the excircle surface of the rotary disk is pressed against the front end of the coded lock when the anti-theft lock is locked, a second radial plate can push a control block arranged in a control box on the front lower part of the sleeve, and a blind hole below the inner end surface of a baffle ring connected with the sleeve is provided with a limiter and a limit spring. The limiter can ensure that only when the coded lock is positioned on the forefront end, the anti-theft lock can be unlocked by the operation part.

Description

A kind of theftproof lock

Technical field

The present invention relates to the lock of a kind of lockset, particularly a kind of special construction.

Background technology

It is by tubular cylinder lock or other forms of functional unit that known theftproof lock has some, can turn round and have the coding disc type coded lock and the control assembly between coded lock and the functional unit of breach and form.The shortcoming of this theftproof lock is: because the operation part of coded lock exposes to the open air outside, under long-term locking-in state, be subjected to accidental damage easily, also arbitrarily play with coded lock owing to people's especially child curiosity, also can make coded lock cause damage, this all makes troubles to the user.

Summary of the invention:

The object of the present invention is to provide a kind of theftproof lock of new structure, when making the operated by handwheel of its coded lock under locking-in state, it partly is hidden in the inside of theftproof lock, have only it is shifted out outside the lock, and provide a kind of control assembly correspondingly, thereby overcome the shortcoming of described prior art theftproof lock for this reason.Its another purpose is: can just can easily operate this theftproof lock without key, also have a purpose to be: if this theftproof lock is contained on the wing of coming in and going out for the people, when the user gos out, to omit the program that door is locked.

The present invention can realize by following measure:

1, a kind of theftproof lock comprises by lock tube being fixed on functional unit on the lock box, can turn round and have the coding disc type coded lock of breach and the control assembly between coded lock and the functional unit, it is characterized in that:

The front end of sleeve is fixed in the lock box by the shelves ring, be arranged in the coded lock of sleeve, its handwheel can pass the shelves ring, be furnished with scale on the periphery of handwheel, the inner face bottom of shelves ring is provided with blind hole, be provided with the limiter and the restraining spring of band boss in the hole, the shelves ring axis equals radius of circle in the sleeve to the ultimate range of the little disc of limiter, it is poor that the sleeve wall thickness equals two exradius of limiter, the sleeve rear end face is provided with socket cover, is fixed on guide peg that external surface on the coded lock front end face is carved with vertical index line and can passes the shelves ring and go up corresponding hole;

Described control assembly comprises following parts: a rotary disk that is enclosed within on the lock tube periphery, its supercentral flat hole is meshed with the flat shift fork of functional unit, the periphery of rotary disk is provided with two radial plate, first radial plate can screw in by the breach of sleeve in the sleeve, when theftproof lock is in locking-in state, the first radial plate end withstands on the handwheel end face of the coded lock that is positioned at the sleeve rear portion, fix a control box in the indentation, there of sleeve lower front, wherein be provided with controll block, the radius of gyration of second radial plate and coding disk radius and controll block height sum are greater than the distance between coding disk and the rotary disk two axial lines, angle between two radial plate relation is to go to when second radial plate is contacted with controll block when rotary disk, and first radial plate just breaks away from the constraint to coded lock.

2, described functional unit can be a kind of tubular cylinder lock.

3, described functional unit also can comprise following part: the T shape dish that is arranged in the lock tube endoporus, the rotating disk that has T shape hole, both recline by T oblique crank Z and pin and flexibly connect, the flat shift fork of T oblique crank Z tail end and rotary disk engagement, on the periphery of rotating disk, be provided with a radial hole, in the T shape rotating shaft on this axially bored line, be provided with one, in the hole of rotating disk, be provided with steel ball successively, compression spring and stifled than aperture.

4, also can in the blind hole on the suitable radius of described T shape dish outer face, be provided with push rod spring, push rod, be provided with T shape rod-type knob in the T shape hole of the same radius of rotating disk, when theftproof lock was in locking-in state, push rod just entered in the T shape hole of described rotating disk and with knob and releases.

5, connecting rod can also be set, the bearing pin on the end face of one end and rotary disk is hinged, and the bearing pin on the end of the other end and latch is hinged, moves in the fairlead of latch on being fixed in lock box.

6, the present invention can also take following measure: pass axle sleeve on the cover plate with the projecting shaft of the coaxial rotating disc that reclines of described rotary disk end face, in the flat shift fork of functional unit and the rotating disc endoporus in the triangle of two symmetric arrangement shoulder be meshed, between itself and the shift fork 90 ° revolution degree of freedom is arranged;

One end and the rotating disc outer face of connecting rod are hinged, and an end of the other end and latch is hinged, move in the fairlead of latch on being fixed in lock box;

Be positioned at the rotating disc projecting shaft on the appropriate location of cover plate outside and be provided with handle, be provided with torsionspring between itself and cover plate, the one end links to each other with projecting shaft, and the axle sleeve on the other end and the cover plate joins;

In fairlead, parallel the pin that bumps that is provided with extended lock box in the hole of layout with the latch pilot hole, bump pin sleeve and bump the pin spring, bump the torsion of the elastic force of pin spring greater than torsionspring, at latch with bump that be provided with on the shift fork seat between the pin can rotating group of card, a card dialling card refers to stretch in the groove that bumps pin one end, and another card refers to can snap in the necking down of latch.

The present invention can also reach by following measure:

A kind of theftproof lock comprises by lock tube being fixed on functional unit on the lock box, can turn round and have the coding disc type coded lock of breach and the control assembly between coded lock and the functional unit, it is characterized in that:

(1) front end of sleeve is fixed in the lock box by the shelves ring, be arranged in the coded lock of sleeve, its handwheel that has pointer can pass the shelves ring, the outer face of shelves ring is provided with dial, the inner face bottom of shelves ring is provided with blind hole, be provided with the limiter and the restraining spring of band boss in the hole, the shelves ring axis equals radius of circle in the sleeve to the ultimate range of the little disc of limiter, it is poor that the sleeve wall thickness equals two exradius of limiter, the sleeve rear end face is provided with socket cover, and the shelves iron that is fixed on the coded lock rear end face passes vertical fluting on the sleeve wall;

(2) described control assembly comprises following part: a rotary disk that is enclosed within on the lock tube periphery, its supercentral flat hole is meshed with the flat shift fork of functional unit, the periphery of rotary disk is provided with two radial plate, first radial plate can screw in the sleeve by the breach on the sleeve, when theftproof lock is in locking-in state, the first radial plate end withstands on the handwheel end face that is positioned at sleeve rear portion coded lock, fix a control box in the indentation, there of sleeve lower front, wherein be provided with controll block, the radius of gyration of second radial plate and coding disk radius and controll block height sum are greater than the distance between coding disk and the rotary disk two axial lines, angle between two radial plate relation is to go to when second radial plate is contacted with controll block when rotary disk, and first radial plate just breaks away from the constraint to coded lock.

The present invention has following advantage: from above-mentioned solution as can be seen, when theftproof lock is in locking-in state, the whole position of coded lock all is arranged in sleeve, and first radial plate on the rotary disk is stuck on the handwheel of coded lock, therefore the operation part of this theftproof lock its coded lock under long-term locking-in state can not damaged because of meeting accident, though while people especially child have also lost the chance of arbitrarily playing with coded lock out of curiosity, have avoided the possibility of therefore being damaged; Secondly, owing in the blind hole of described shelves ring limiter is set, have only when coded lock is in the sleeve foremost, through decoding second radial plate is pushed away in the breach that controll block rises to combination disk, with the purpose that realizes unblanking, as long as coded lock leaves top position, limiter just is limited spring and releases, limited moving up of controll block, this has just guaranteed the absolute control of coded lock to functional unit, that is to say and have only coded lock position up front, and coded lock clog-free rotation of functional unit ability under the state of deciphering, so that operate bolt or other parts that will operate; Also can find out from above-mentioned solution,, can make the user remove the trouble of carrying key from because functional unit replaces the tubular cylinder lock with described form of structure.When theftproof lock was in locking-in state, push rod had limited the rotation of rotating disk, functional unit also is in stablizes motionless state; In addition because the steel ball in the rotating disk and the effect of compression spring have guaranteed that the flat shift fork on the functional unit is not out of shape by excessive torsion.For example: when coded lock leaves top position, limiter limits moving up of controll block, if twist rotating disk by force then this rotating disk just can dally in the rotating shaft of T shape; Also can find out from above-mentioned solution, because shoulder has 90 ° revolution degree of freedom in two triangles in flat shift fork and the rotating disc, and be provided with the handle and the torsionspring that bump on pin assembly and the rotating disc projecting shaft, if this theftproof lock is contained on the wing of coming in and going out for the people, when the user went out, as long as wing enters in the doorframe, this theftproof lock will automatically lock, need not wing is locked, and the user can arbitrarily open or shut wing at the another side of wing.

Description of drawings:

Fig. 1 is the structural representation of one embodiment of the invention.

Fig. 2 is the A-A sectional view of Fig. 1

Fig. 3 is the structural representation of another embodiment of the present invention.

Fig. 4 is the B-B sectional view of Fig. 3.

Fig. 5 is the stereo amplification figure of part 54 and part 55 among Fig. 1 and Fig. 3.

Description of drawings is as follows: 1 lock tube, 2 lock boxes, 3 functional units, 31T shape dish, 32 rotating disks, the rotating shaft of 33T shape, 34 steel balls, 35 compression springs, 36 is stifled, 37 knobs, 38 push rods, 39 push rod spring, 4 coded locks, 41 coding disks, 43 terminal pads, 44 tubular lock bodies, 45 guide pegs, 46 handwheels, 48 holddown springs, 49 locking closures, 5 sleeves, 51 back-moving springs, 52 socket cover, 54 control boxes, 55 controll blocks, 6 grades of rings, 61 limiters, 62 restraining springs, 7 cover plates, 8 rotary disks, 81 first radial plate, 82 second radial plate, 9 handles, 10 torsionsprings, 11 bump pin sleeve, 12 rotating discs, 13 connecting rods, 14 latches, 15 bump pin, and 16 bump the pin spring, 17 groups of cards, 18 fairleads.

The specific embodiment:

First embodiment

As Fig. 1, shown in Figure 2, the present embodiment theftproof lock comprises functional unit 3, coded lock 4 and assembly thereof and control assembly, they are installed in the lock box 2, described coded lock 4 and assembly thereof comprise following part: fix one grade of ring 6 by welding in the circular hole of a rectangle lock box 2, sleeve 5 is fixed on the shelves ring, coded lock 4 is housed in the sleeve, this coded lock is a patented product, its patent No. is 2004201163741, it is to have the terminal pad 43 of a plurality of notches to be posted by connecting in pairs successively by four coding disks 41 by the connecting pin on it and four, the sleeve pipe of terminal pad right-hand member is socket successively also, outmost sleeve pipe periphery slides in the centre bore of the tubular lock body 44 that contains coding disk, graduated handwheel 46 is affixed on sleeve pipe right-hand member and the periphery, handwheel can pass the shelves ring, be provided with holddown spring 48 between the coding disk on the left side and the locking closure 49, the guide peg 45 that the external surface that is located at tubular lock body front end face is carved with vertical index line passes the shelves ring and goes up corresponding hole, back-moving spring 51 acts between socket cover 52 and the locking closure 49, inner bottom at the shelves ring is provided with blind hole, be provided with the limiter 61 and the restraining spring 62 of band boss in the hole, the shelves ring axis equals radius of circle in the sleeve to the ultimate range of the little disc of limiter, it is poor that the sleeve wall thickness equals two exradius of limiter, functional unit 3 is made up of following part: T shape dish 31 is fixed on the lock box 2 by lock tube 1, passing the T shape rotating shaft 33 that its afterbody in the T shape dish hole has a flat shift fork makes rotating disk 32 be connected with T shape dish by pin, be provided with push rod spring 39 in the blind hole on the suitable radius in T shape dish right side, push rod 38, in the T shape hole of the rotating disk of its same radius, be provided with T shape rod-type knob 37, when theftproof lock was in locking-in state, push rod just entered in the T shape hole of rotating disk knob is released; On the periphery of rotating disk 32, be provided with a radial hole, in the T shape rotating shaft 33 on this axially bored line, be provided with a less hole, in the hole of rotating disk, be provided with steel ball 34 successively, compression spring 35, stifled 36; Control assembly is made up of following part, a rotary disk 8 that is enclosed within on lock tube 1 periphery, its supercentral flat hole is meshed with flat shift fork on T shape rotating shaft 33 tail ends, flat shift fork stretches out cover plate 7 left sides, the periphery of rotary disk is provided with two radial plate, first radial plate 81 can screw in by the breach of sleeve 5 in the sleeve, when theftproof lock is in locking-in state, the first radial plate end withstands on the handwheel end face of the coded lock 4 that is positioned at the sleeve left end, indentation, there below the sleeve right part is fixed a control box 54, controll block 55 is wherein arranged, the radius of gyration of second radial plate 82 and coding disk 41 radiuses and controll block height sum greater than between coding disk and the rotary disk two axial lines apart from the 4-6 millimeter, angle between two radial plate relation is: when rotary disk goes to when second radial plate is contacted with controll block, first radial plate is just removed the constraint to coded lock.

Present embodiment is work like this, and the state shown in Fig. 1 and 2 is the theftproof lock locking-in state.Coded lock is positioned at the sleeve left end, radial plate 81 is stuck on the handwheel 46 on the left side, if when opening theftproof lock, press knob 37 and clockwise rotate rotating disk 32, when the second radial plate touch controls piece, first radial plate is just removed the constraint to coded lock, coded lock is under back-moving spring 51 promotes, move on to the sleeve right-hand member and push limiter 61, rotate four handwheels respectively and make vertical index line on the deciphering scale alignment guide bar 45 on it, make the coded lock deciphering, then the breach on four coding disks all neatly is positioned at foot and corresponding with controll block 55, be rotated further rotating disk, second radial plate pushes away moves on the controll block and enters in the breach of coding disk, and theftproof lock is in beats unlocked conditions; If make theftproof lock be in locking-in state, make coded lock still be in decrypted state, the counter-rotating rotating disk makes second radial plate turn over controll block, first radial plate does not enter in the sleeve, rotates handwheel controll block 55 is moved down, and the pushing hands wheel makes the coded lock compression reseting spring to high order end, continue the counter-rotating rotating disk, when rotating disk was inverted to 90 °, knob 37 was ejected by push rod 38, and first radial plate is stuck on the handwheel right side on the left side.Obviously, third and fourth radial plate can be housed on the rotary disk external surface again, in order to control on the wing latch or the instruction contact of control apparatus switch to realize Long-distance Control, also can make the flat shift fork of rotating shaft tail end mesh other controling appliances.

Second embodiment:

As Fig. 3,4, shown in 5, the present embodiment theftproof lock comprises functional unit 3, coded lock 4 and assembly thereof and control assembly, they are installed in the lock box 2, described coded lock 4 and assembly thereof are made up of following part: fix one grade of ring 6 by welding in the circular hole of a rectangle lock box 2, sleeve 5 is fixed on the shelves ring, coded lock 4 is housed in the sleeve, this coded lock is a patented product, its patent No. is 2004201163741, it is to have the terminal pad 43 of a plurality of notches to be posted by connecting in pairs successively by four coding disks 41 by the connecting pin on it and four, the sleeve pipe of terminal pad right-hand member is socket successively also, outmost sleeve pipe periphery slides in the centre bore of the tubular lock body 44 that contains coding disk, graduated handwheel 46 is affixed on sleeve pipe right-hand member and the periphery, handwheel can pass the shelves ring, be provided with holddown spring 48 between the coding disk on the left side and the locking closure 49, the guide peg 45 that vertical index line is carved with on the surface that is located at tubular lock body front end face passes corresponding hole on the shelves ring inner face, back-moving spring 51 acts between socket cover 52 and the locking closure 49, inner bottom at the shelves ring is provided with blind hole, be provided with the limiter 61 and the restraining spring 62 of band boss in the hole, the shelves ring axis equals radius of circle in the sleeve to the ultimate range of the little disc of limiter, and it is poor that the sleeve wall thickness equals two exradius of limiter; Functional unit 3 is tubular cylinder locks that have flat shift fork, is fixed on the lock box 2 by lock tube 1; Control assembly is made up of following part, a rotary disk 8 that is enclosed within on lock tube 1 periphery, its supercentral flat hole is meshed with the flat shift fork of tubular cylinder lock, the periphery of rotary disk is provided with two radial plate, first radial plate 81 can screw in by the breach of sleeve 5 in the sleeve, when theftproof lock is in locking-in state, the first radial plate end withstands on the handwheel end face of the coded lock 4 that is positioned at the sleeve left end, indentation, there below the sleeve right part is fixed a control box 54, controll block 55 is wherein arranged, the radius of gyration of second radial plate 82 and coding disk 41 radiuses and controll block height sum greater than between coding disk and the rotary disk two axial lines apart from the 4-6 millimeter, angle between two radial plate relation is: when rotary disk goes to when second radial plate is contacted with controll block, first radial plate is just removed the constraint to coded lock; Pass axle sleeve on the cover plate 7 with the projecting shaft of the coaxial rotating disc that reclines 12 of described rotary disk 8 end faces, shoulder is meshed in the triangle of two symmetric arrangement in the flat shift fork of tubular cylinder lock and the rotating disc endoporus, between itself and the shift fork 90 ° revolution degree of freedom is arranged; One end and the rotating disc left side of connecting rod 13 are hinged, and an end of the other end and latch 14 is hinged, move in the fairlead 18 of latch in being fixed in lock box 2; Be positioned at the rotating disc projecting shaft on the appropriate location of cover plate 7 outsides and be provided with handle 9, be provided with torsionspring 10 between itself and cover plate, the one end links to each other with projecting shaft, and the other end links to each other with axle sleeve on the cover plate; In fairlead, parallel with the latch pilot hole be provided with extended lock box 2 in the hole of layout bump pin 15, bump pin sleeve 11 and bump pin spring 16, its elastic force is greater than the torsion of torsionspring 10, at latch and bump dialling on the deck between the pin, be provided with can rotating group card 17, a card dialling card refers to stretch in the groove that bumps pin one end, and another card refers to can snap in the necking down of latch.

The concrete operations of present embodiment are as follows: Fig. 3 and state shown in Figure 4 are the theftproof lock locking-in state, coded lock is positioned at the sleeve left end, radial plate 81 is stuck on the handwheel 46 on the left side, if when opening theftproof lock, clockwise rotate the flat shift fork in the lock core and drive rotary disk 8 rotations with key, when the second radial plate touch controls piece on it, first radial plate is just removed the constraint to coded lock, coded lock is under the promotion of back-moving spring 51, move on to sleeve right-hand member and compression limiter 61, rotate four handwheels respectively and make vertical index line on the deciphering scale alignment guide bar 45 on it, make coded lock deciphering, then the breach on four coding disks all neatly is positioned at foot and corresponding with controll block 55, is rotated further flat shift fork, second radial plate pushes away moves on the controll block and enters in the breach of coding disk, and theftproof lock is in open mode; When flat shift fork rotates, also rotate by the moving rotating disc 12 of shoulder belt in the triangle of described two symmetric arrangement, then hinged with it connecting rod 13 drives latch 14 and is withdrawn in the fairlead 18, if bump pin 15 and be disengaged constraint (being the wing open state) this moment, another card of dialling card refers to and will enter in the necking down of latch, the key that reverses then makes second radial plate break away from controll block, rotating handwheel moves down controll block, the pushing hands wheel makes coded lock be in high order end, continue the counter-rotating key again to original position, then theftproof lock is in locking-in state, extract key out, because shift fork has 90 ° revolution degree of freedom with rotating disc, the connecting rod 13 that is hinged with rotating disc at this moment, still make latch be in retracted mode, when in user's inlet chamber and when shutting wing, bump pin 15 and push and shove pin spring 16 and drive and dial card 17 and rotate, make one to dial card and refer to remove constraint to latch, torsionspring 10 will drive latch and stretch out, and wing is pinned; Also because shift fork and rotating disc have 90 ° of revolution degree of freedom, so when theftproof lock was in locking-in state, operating grip 9 can arbitrarily be extracted latch out or insert in the wing frame from wing frame.

Above-mentioned two embodiment, the coded lock that all adopts its coding disk to be controlled respectively, this prior art is simple in structure, and size of key is big, and Change Password is convenient again.But this theftproof lock also can adopt the coded lock that is commonly used on the market on the strongbox, its structure is: fix an individual seat on the end face of cylindric lock body, on the axle sleeve of body seat, be with compression spring successively, the coding disk jaggy of pad that interior shoulder is arranged that reclines in pairs and band notch, the Handle axis of band dial is passed body seat endoporus, and the end of Handle axis is connected by the coding disk of cottor pin with the left side.Obviously, as long as the coding disk of a coded lock is can be rotating and have a breach that is used to encode, and can be with the controll block in the present embodiment corresponding cooperating, just can become the coded lock in this theftproof lock.

It can also be seen that by this embodiment, as long as change the structure of controll block 55, can control by coded lock 4 and 55 pairs of functional units 3 of controll block, also can control functional unit without coded lock and controll block, this just provides more easily to the user and has selected.The structure of controll block is improved like this: make the cross section of controll block become ∩ shape, the T shape plate that adapts with it at ∩ shape groove mid-, its lower end is corresponding with the revolution section of radial plate 82, the left upper end of T shape plate is established a downward breach, the arm-tie that can stretch out cover plate 7 outsides, front end has a projection that makes progress, can go in the breach of T shape plate the Shen, arm-tie can be fixed on the base plate that is located at cover plate 7 outsides by two holes on it with the U-shaped bearing pin, extract the U-shaped bearing pin, the pulling arm-tie, when making the U-shaped bearing pin insert the macropore on the arm-tie right side, then the other end of U-shaped bearing pin puts in sleeve 5 and withstands on the coded lock 4, T shape plate lower end is owing to being moved to the left the revolution section that leaves second radial plate 82 simultaneously, that is to say when functional unit operation rotary disk rotates, second radial plate on the rotary disk will not be subjected to any obstruction, this state can be used to people and the short time leave the house, as long as wing is shut, just be lockable, when returning with key just directly the lock on the opening operation parts wing is opened.

Claims

1. theftproof lock comprises by lock tube (1) being fixed on functional unit (3) on the lock box (2), can turn round and have the coding disc type coded lock (4) of breach and the control assembly between coded lock and the functional unit, it is characterized in that:

(1) front end of sleeve (5) is fixed in the lock box (2) by shelves rings (6), be arranged in the coded lock (4) of sleeve, its handwheel (46) can pass the shelves ring, be furnished with scale on the periphery of handwheel, the inner face bottom of shelves ring is provided with blind hole, be provided with the limiter (61) and the restraining spring (62) of band boss in the hole, the shelves ring axis equals radius of circle in the sleeve to the ultimate range of the little disc of limiter, it is poor that the sleeve wall thickness equals two exradius of limiter, the sleeve rear end face is provided with socket cover (52), is fixed on guide peg (45) that its external surface on the coded lock lock body front end face is carved with vertical index line and passes hole on the shelves ring inner face;

(2) described control assembly comprises following part: a rotary disk (8) that is enclosed within on lock tube (1) periphery, its supercentral flat hole is meshed with the flat shift fork of functional unit (3), the periphery of rotary disk is provided with two radial plate, the breach that first radial plate (81) can be passed through sleeve (5) screws in the sleeve, when theftproof lock is in locking-in state, the first radial plate end withstands on the handwheel end face of the coded lock (4) that is positioned at the sleeve rear portion, fix a control box (54) in the indentation, there of sleeve lower front, wherein be provided with controll block (55), the radius of gyration of second radial plate (82) and coding disk radius and controll block height sum are greater than the distance between coding disk and the rotary disk two axial lines, angle between two radial plate relation is to go to when second radial plate is contacted with controll block when rotary disk, and first radial plate just breaks away from the constraint to coded lock.

2. theftproof lock according to claim 1 is characterized in that, described functional unit (3) is a kind of tubular cylinder lock.

3. theftproof lock according to claim 1, it is characterized in that, described functional unit (3) comprises following part: the T shape dish (31) that is arranged in lock tube (1) endoporus, the rotating disk (32) that has T shape hole, both recline by T oblique crank Z (33) and pin and flexibly connect, the flat shift fork of T oblique crank Z (33) tail end and rotary disk (8) engagement, on the periphery of rotating disk, be provided with a radial hole, T oblique crank Z on this radial hole axis is provided with one than aperture, in the hole of rotating disk, be provided with steel ball (34) successively, compression spring (35) and stifled (36).

4. theftproof lock according to claim 3, it is characterized in that: be provided with push rod spring (39) in the blind hole on the suitable radius of described T shape dish (31) outer face, push rod (38), in the T shape hole of the same radius of rotating disk (32), be provided with T shape rod-type knob (37), when theftproof lock was in locking-in state, push rod just entered in the T shape hole of described rotating disk and with knob and releases.

5. according to claim 1,2,3 or 4 described theftproof locks, it is characterized in that: the bearing pin on an end of connecting rod (13) and rotary disk (8) end face is hinged, bearing pin on the other end and latch (14) one ends is hinged, moves in the fairlead (18) of latch on being fixed in lock box (2).

6. according to claim 1,2,3 or 4 described theftproof locks, it is characterized in that:

(1) passes axle sleeve on the cover plate (7) with the projecting shaft of described rotary disk (8) the coaxial rotating disc that reclines of end face (12), in the flat shift fork of functional unit (3) and the rotating disc endoporus in the triangle of two symmetric arrangement shoulder be meshed, between itself and the flat shift fork 90 ° revolution degree of freedom is arranged;

(2) end of connecting rod (13) and rotating disc outer face are hinged, and an end of the other end and latch (14) is hinged, move in the fairlead (18) of latch on being fixed in lock box (2);

(3) be provided with handle (9) on the rotating disc projecting shaft is positioned at the appropriate location of cover plate outside, be provided with torsionspring (10) between itself and cover plate, the one end links to each other with projecting shaft, and the axle sleeve on the other end and the cover plate joins;

(4) in fairlead, parallel with the latch pilot hole be provided with extended lock box (2) in the hole of layout bump pin (15), bump pin sleeve (11) and bump pin spring (16), bump the torsion of the elastic force of pin spring greater than torsionspring (10), at latch with bump that be provided with on the shift fork seat between the pin can rotating group of card (17), a card dialling card refers to stretch in the groove that bumps pin one end, and another card refers to can snap in the necking down of latch.

7. theftproof lock comprises by lock tube (1) being fixed on functional unit (3) on the lock box (2), can turn round and have the coding disc type coded lock (4) of breach and the control assembly between coded lock and the functional unit, it is characterized in that:

(1) front end of sleeve (5) is fixed in the lock box (2) by shelves rings (6), be arranged in the coded lock (4) of sleeve, its handwheel that has pointer can pass the shelves ring, the outer face of shelves ring is provided with dial, the inner face bottom of shelves ring is provided with blind hole, be provided with the limiter (61) and the restraining spring (62) of band boss in the hole, the shelves ring axis equals radius of circle in the sleeve to the ultimate range of the little disc of limiter, it is poor that the sleeve wall thickness equals two exradius of limiter, the sleeve rear end face is provided with socket cover (52), and the shelves iron that is fixed on the coded lock rear end face passes vertical fluting on the sleeve wall;

(2) described control assembly comprises following part: a rotary disk (8) that is enclosed within on lock tube (1) periphery, its supercentral flat hole is meshed with the flat shift fork of functional unit (3), the periphery of rotary disk is provided with two radial plate, the breach that first radial plate (81) can be passed through on the sleeve (5) screws in the sleeve, when theftproof lock is in locking-in state, the first radial plate end withstands on the handwheel end face that is positioned at sleeve rear portion coded lock (4), fix a control box (54) in the indentation, there of sleeve lower front, wherein be provided with controll block (55), the radius of gyration of second radial plate (82) and coding disk radius and controll block height sum are greater than the distance between coding disk and the rotary disk two axial lines, angle between two radial plate relation is to go to when second radial plate is contacted with controll block when rotary disk, and first radial plate just breaks away from the constraint to coded lock.