CN104453405A - Additional marble-free mechanical anti-theft lock - Google Patents

Abstract

The invention discloses an additional marble-free mechanical anti-theft lock. A rear lock cylinder and a front lock cylinder are completely disconnected, the rear lock cylinder, the front lock cylinder and a connection body are hidden in a hidden hole, a connection hole is formed in the front portion of the rear lock cylinder, a connection tongue is fixed on the rear portion of the rear lock cylinder and penetrates through a via hole, a sliding rod in front of a guide spring in a sliding hole is installed in an expanding groove and the sliding hole, a shifting fork is located in a sliding groove and fixed on the sliding rod through a connection pin, the expanding end of an expanding sheet abuts against the interior of a locking groove to lock the front lock cylinder, and rotary blocks are arranged in an inclined groove and an inclined locking groove to lock the front lock cylinder. The inclined hanging and direct pushing rotating type unlocking mode is adopted, mechanical interlocking, invisibility and hidden connection are integrated, and therefore a thief cannot open an outwards expanding lock and rotate the rear lock cylinder at the same time; even though the outwards expanding lock and the connection body are destroyed forcedly, only the front lock cylinder can be rotated, the rear lock cylinder dose not rotate, and the complete and thorough anti-theft function is achieved.

Description

Additional without playing mechanical anti-theft lock

Technical field

The one that the present invention relates to theftproof lock field is additional without playing mechanical anti-theft lock.

Background technology

The theftproof lock of present use has a variety of, but is all rotate after the key adopted backs down hoodle to drive dead bolt to open theftproof lock substantially, and the theftproof lock not having interlocking and self-locking to combine, causes robber or the king that unblanks is easy to just open theftproof lock.The theftproof lock that robber and the king that unblanks do not open also there is no at present.

Summary of the invention

The object that the present invention relates to be in order to a kind of robber is provided and unblanks that king do not open the asynchronous interlocking of collection, self-locking and mechanical interlocked that be combined as a whole, high security, without the manufacture of the theftproof lock of hoodle and method thereof.

For achieving the above object, the additional latch system not having cylinder lock without bullet mechanical anti-theft lock of the present invention, only have an outer latch system, tiltedly locking device, synchronized links system, mainly comprise: lock body, front lock core, rear lock core, connector, return spring, sliding eye, sliding bar, shift fork, connecting pin, top pressure spring, sliding tray, expansion groove, lock groove, expanding plate, guide springs, connecting hole, connection tongue, spring bearing bore, specially bitting hole, specially bitting, skewed slot, tiltedly locked groove, switch block, rotational pin, top spring;

Be provided with front lock core and rear lock core in described lock body, rear lock core is movably arranged on the rearward end of front lock core, disconnects completely with front lock core; There are sliding eye, expansion groove, sliding tray, skewed slot, specially bitting hole and stealthy hole in described front lock core, in stealthy hole, connector are installed; The rear end of described rear lock core is fixed with connection tongue, and connect tongue and be connected with link gear through after the via hole at lock body rear portion, link gear is connected with dead bolt; Described guide springs is arranged on bottom sliding eye, sliding bar is had to be installed in expansion groove and sliding eye before guide springs, the fixed end of expanding plate is fixed on the sliding bar of this part in expansion groove, the expansion end top of expanding plate is pressed on arcwall face in lock groove or inclined-plane, thrust hole place on sliding bar before the fixed end of fixing expanding plate has shift fork to be fixed on sliding bar by connecting pin, and top pressure spring top is pressed on the fork of the shift fork in sliding tray; In described skewed slot, oblique locking device is installed.

There are lock core hole and via hole in center in described lock body, and via hole is used to allow and connects hole that tongue passes, rearward end at lock body, lock core hole circular hole, before via hole; Be provided with lock core in lock core hole, lock core comprises front lock core and rear lock core, and front lock core is arranged on before rear lock core; Lock groove and oblique locked groove is had in the circular hole part of lock core hole, described lock groove is deep-slotted chip breaker or the surface groove of depression on the lock core hole in lock body, deep-slotted chip breaker has arcwall face, surface groove has inclined-plane, lock groove is corresponding with the position of the expansion groove on front lock core, and communicates; Described oblique locked groove is depression, along the cannelure on lock core hole direction, corresponding with the position of the skewed slot on front lock core on lock core hole, for allowing the lock core rotation before movable and locking inside of the locking end of switch block.

Special bitting hole, stealthy hole, skewed slot, sliding eye, sliding tray, expansion groove is had in described front lock core, described special bitting hole and stealthy hole all the centre that front lock core rotates or close to rotate centre, the previous section of special bitting hole at front lock core, the aft section of stealthy Kong Qian lock core; Be provided with connector in described stealthy hole, there is stealthy hole the front end of connector, is provided with return spring in stealthy hole; Described skewed slot wear out on the lock core of the special bitting bore portion of front lock core before the outer round surface of lock core and special bitting hole, communicate with oblique locked groove and special bitting hole, and corresponding with the oblique locked groove on lock core hole, for installing oblique locking device and allowing the parts of oblique locking device operate; Described sliding eye is that inside has rank or do not have the elongated hole on rank, two ends are all the end faces that blind hole or two ends wear out that front lock core is worn out in the end face of front lock core or one end, when sliding eye wears out end face, with screw blocking or with plug blocking or the position by jump ring restriction or the sliding bar limited in sliding eye or guide springs, the neutral gear place of sliding eye beyond the special bitting hole of the peripheral edge portion rotated close to front lock core, expanded groove and be divided into two sections; The surface of described expansion groove lock core before the interlude of sliding eye is worn out, sliding eye is divided into two sections, front and back, through with two sections, front and back sliding eye, communicate with sliding tray and lock groove, for the fixed end of fixing expanding plate and the entirety holding expanding plate when allowing the expansion end of expanding plate be squeezed; Described sliding tray communicates, for installing top pressure spring and allowing shift fork swing in sliding tray with expansion groove, sliding eye and special bitting hole in the inside of expansion groove; Described sliding eye and sliding tray and expand groove and be connected in one, in the lock core body of front lock core.

A locking system is outward had at least in a lock, outer described locking comprises sliding eye, sliding bar, thrust hole, shift fork, connecting pin, guide springs, top pressure spring, expansion groove, expanding plate, sliding tray and lock groove, the bottom of described sliding eye is provided with guide springs, guide springs top is pressed on the sliding bar before it, sliding bar is arranged in sliding eye and expansion groove, the middle part of sliding bar is in expansion groove, two ends are in sliding eye, the sliding bar of this part in expansion groove is fixed with expanding plate, shift fork is fixed in the thrust hole on the sliding bar before the fixed end of expanding plate by connecting pin, the top pressure spring top, one end be arranged in sliding tray is pressed in the fork of shift fork, the expansion end top of expanding plate is pressed on the inclined-plane in the arcwall face of the deep-slotted chip breaker in lock groove or surface groove, expanding plate in expansion groove or expanding plate simultaneously in expansion groove and lock groove, when special bitting is not inserted in special bitting hole, the fixed end of described expanding plate in expansion groove, flared end locked to front lock core and lock body in lock groove, front lock core can not rotate in lock body, realizes opening locking outward, when special bitting hole drawback lock is inserted in special bitting, under the promotion of shift fork, sliding bar moves after promoting expanding plate, the oblique compression on arcwall face in lock groove of the flared end of expanding plate or inclined-plane and under guiding, fixed end along expanding plate is drawn close to expansion groove, along with the continuation of sliding bar is moved, the expansion end of expanding plate slips on inwall that arcwall face in lock groove or sloped roof be pressed in the lock core hole in lock body and enters in expansion groove, the locking of lock core and lock body before removing,

Described sliding bar is cylinder or stairstepping cylinder, cylinder has thrust hole, and the two sides in thrust hole is provided with the pin hole being fixedly connected with pin end;

Described shift fork is Y-shaped fork or V-shaped fork, or triangle, shift fork is provided with pin-and-hole, and the pin-and-hole of described Y-shaped fork is at the shank of shift fork, the pin-and-hole of described V-shaped fork is in the junction of the fork of V-shaped, and described shift fork is that leg-of-mutton pin-and-hole is on a leg-of-mutton angle;

Described connecting pin is pin, is used for connecting shift fork and sliding bar;

Described guide springs and top pressure spring are stage clips;

Described expanding plate is spring leaf or flexure strip, or the assembly of rigid disk and tension spring, and tension spring top is pressed between sliding bar and expanding plate; The both sides end face of described expanding plate is the face of lock core and lock body before pintle hook lock, and the fixed end of expanding plate is arranged on the sliding bar in expansion groove, is fixed on the middle part of sliding bar.

An oblique locking device is had at least in a lock; Described oblique locking device comprises skewed slot, tiltedly locked groove, switch block, rotational pin, top spring, described switch block is fixed in skewed slot by rotational pin, the promote-side of switch block is stretched in special bitting hole, locking end stretches in oblique locked groove, and the top, one end of top spring is pressed on switch block, other end top is pressed on the wall of skewed slot.When pushing tow rank on the key promote the promote-side of the switch block exposed in special bitting hole, the untie-sell that rotates of the locking end of switch block in oblique locked groove rotates and shifts out in oblique locked groove, thus removes the locking to front lock core; When pushing tow key does not insert in special bitting hole, locking end locked front lock core in oblique locked groove of switch block.

Described switch block is the blocks of bar shaped, and there is pin-and-hole at the middle part of blocks, and rotational pin is through pin-and-hole; In special bitting hole the same side to key in polylith switch block is installed time, expose the part switch block in special bitting hole, one piece of ratio below one piece short before it; Described switch block can rotate in skewed slot untie-sell rotate, can not rotate in lock core hole for lock core before locking;

Described rotational pin is pin or bolt, is fixed in the fixing hole in skewed slot, for fixing switch block;

Described top spring is stage clip or torsion spring.

The center of the rear end of described rear lock core is fixed with and connects tongue through lock body via hole below, and there is the connecting hole of depression the front end of the center of rotation of rear lock core; Described connecting hole is polygon bearing bore or the groove of depression, or the bearing bore of shape of circular arc and line segment composition or groove; Be with or without spring bearing bore in the bottom of connecting hole, when the bottom of described connecting hole does not have a spring bearing bore, spring bearing bore is located at the rearward end of connector, is provided with return spring in spring bearing bore, and one end of return spring withstands on the bottom of connecting hole; When spring bearing bore arranged at the bottom of described connecting hole, the core that spring bearing bore and connecting hole rotate at rear lock core or the part close to center of rotation, spring bearing bore is later through connecting hole above, be provided with return spring in spring bearing bore, one end of return spring withstands on the rearward end of connector.

When having spring bearing bore in described rear lock core, spring bearing bore is at the connecting hole passed back through above of the bottom of connecting hole; When not having spring bearing bore in described rear lock core, spring bearing bore is in the rearward end of connector; Described spring bearing bore also can simultaneously in the rearward end of connector and the bottom of connecting hole; Described spring bearing bore is bearing bore or blind hole, for installing return spring; Described return spring is spring;

Described connector is one section of connector, the front end of connector coordinates with the front end of pushing tow key can slide in stealthy hole He in connecting hole, when connector slides in stealthy hole, its rear end can be inserted in the connecting hole in rear lock core, for connecting front lock core and rear lock core.

Described special bitting comprises pushing tow key and the shank of the key, and pushing tow key is fixed on the shank of the key; Described pushing tow key is promotion key, is the key not having the oblique flank of tooth of marble lock key; The part that pushing tow key inserts the key in special bitting hole having at least the middle part of a lateral to have the convex extension of protrusion, before convex extension, pushes away terrace, pushing away terrace for pushing away extension shift fork; The part that pushing tow key inserts the key in special bitting hole having at least on a lateral has rank to push away, and rank push away the promote-side for promoting switch block; It is the rank that pushing tow key inserts that the aft section of the part of the key in special bitting hole is wide, previous section is narrow and formed that described rank push away; The length of described pushing tow key is longer than the length in special bitting hole, and the part that the length of pushing tow key is longer than special bitting hole is used for promoting connector insertion connecting hole.

In order to increase safety and the disguise of theftproof lock, rear lock core is movably arranged on the rearward end of front lock core, disconnects completely and hiddenly realizes being connected stealth, do not have the insertion of pushing tow key can not connect and transmit power to rear lock core with front lock core; The locked front lock core of switch block of oblique locking device realizes interlocking stealth, does not have pushing tow key to insert the promote-side promoting switch block in special bitting hole and can not open oblique locking device; Expanding plate is simultaneously in expansion groove and in lock groove, do not have the insertion of pushing tow key, expanding plate can not move, and the arcwall face in lock groove or inclined-plane can not guide and oblique compression expanding plate, expanding plate can not enter in expansion groove completely, can not remove the locking to front lock core.

In order to increase the interlocking capability of theftproof lock, disguise and anti-theft effect, the locked front lock core of expanding plate is adopted to realize an outer locking; Adopt switch block front lock core and lock body locked realize rotating interlock; Before adopting, lock core and rear lock core disconnect being hidden in stealthy hole with connector completely and realize being connected stealth.

When unblanking with special bitting, insert special bitting hole with the pushing tow key of special bitting, in the process inserted, the promote-side that pushing tow rank on the key the promote switch block untie-sell that rotates rotates and shifts out in oblique locked groove, removes the locking to front lock core, meanwhile, pushing tow on the key before a convex terrace that pushes away hung up tangle shift fork the fork or angle that expose sliding tray below, and promote shift fork and rotate around connecting pin, before shift fork one is made to pitch or sliding tray is exposed and one fork or angle proceed in sliding tray below in angle, now, pushing tow on the key below one convex hang up push away terrace tangle expose sliding tray shift fork before a fork or angle continue to promote shift fork, and now the front block of shift fork can not rotate around connecting pin on the aperture in thrust hole again, shift fork moves after just driving sliding bar, move after driving expanding plate simultaneously, along with the continuation of pushing tow key promotes, drive on the arcwall face of expanding plate in lock groove or inclined-plane and slide, under arcwall face on lock groove or the guiding on inclined-plane and extruding, the expansion end of expanding plate is drawn close to the sliding bar in expansion groove, expanding plate leaves lock groove along with moving after sliding bar, arrive the inwall of lock core hole and enter in expansion groove, open an outer locking, pushing tow key is through behind special bitting hole, and the front end of pushing tow key is inserted in stealthy hole and promoted, in connector insertion connecting hole, to complete the connection with front lock core and rear lock core, now, rotate special bitting, rear lock core rotates with front lock core and is with the tongue that is dynamically connected to rotate, and connection lingual ribbon moves link gear and opens dead bolt and unblank.

When pushing tow key exits special bitting hole, the untie-sell that rotates under the powered of top spring of the locking end of switch block rotates and enters locked front lock core in oblique locked groove, completes the locking to front lock core; Under the promotion of top pressure spring, pushing tow on the key before one convex hang up push away terrace tangle expose sliding tray shift fork before one fork or angle pull shift fork around connecting pin revolution and make before shift fork one pitch or angle enter in sliding tray, under the promotion of top pressure spring and under the promotion of guide springs, sliding bar moves forward and drives expanding plate to move forward, enter in lock groove under the flexible powered of expanding plate self, press to the arcwall face in lock groove or inclined-plane, complete the locking to front lock core; Connector, under the promotion of return spring, exits connecting hole and enters in stealthy hole completely, front lock core is disconnected completely with rear lock core and in can not being connected, front lock core can not be connected with rear lock core.

When robber or the king that unblanks unblank with technical tool, the pellet that can not find cylinder lock in special bitting hole is stretched into steel wire, and expose skewed slot switch block and shift fork expose the fork of sliding tray or angle think by mistake be cylinder lock pushing tow pellet and attempt opening theftproof lock in the switch block press-in skewed slot exposing skewed slot and exposing in the fork of sliding tray or angle press-in sliding tray, when pressing fork or angle below, emerge again sliding tray and the steel wire that hook is dynamic is backed down in above one fork or angle, make robber or the king that unblanks has no way of doing it, add the switch block exposing skewed slot can not be pressed in skewed slot, front lock core can not rotate, namely robber or the king that unblanks use steel wire to open outer locking and oblique locking device, have rotated front lock core, but can not rotate rear lock core because the connector in stealthy hole is not connected with rear lock core.

Robber or unblank king need not specially bitting is unblanked time, enter after not having pushing tow key to insert special bitting hole in stealthy hole promote connector enter in connecting hole, front lock core and rear lock core cannot be made simultaneously to rotate, can not theftproof lock be opened; Do not have pushing tow key to insert the promote-side promoting switch block in special bitting hole and can not open oblique locking device, front lock core cannot be made to rotate; There is no the promotion of special bitting, an outer locking can not be opened, expanding plate can not be made to exit lock groove and front lock core can not be rotated, rear lock core cannot be rotated, can not theftproof lock be opened; Add the difficulty of pirate of the open lock, thus play the effect of outer locking, self-locking, stealth, multiple locking and multiple safety.

After namely robber or the king that unblanks use flat instrument to adopt barbarous way to damage expanding plate and switch block, the front lock core of forced rotating, rear lock core is not connected with front lock core because of stealthy and does not rotate with front lock core, plays anti-theft function.

In order to can be real antitheft, adopt front lock core and rear lock core to disconnect rear connector completely and be hidden in stealthy hole and realize being connected stealth; Adopt expanding plate and switch block stealth in lock core and lock body, realize interlocking stealthy.

In order to enable special bitting promote sliding bar and connector smoothly, the length of described sliding bar is shorter than the length of sliding eye; Described pushing tow key is longer than special bitting hole;

In order to open outer locking, the arcwall face of expanding plate when mobile in lock groove or inclined-plane oblique compression expanding plate, make expanding plate exit in lock groove and open an outer locking.

In order to expand the scope of application, the described additional place without playing mechanical anti-theft lock and be applicable to the antitheft door of all kinds of needs, cabinet and so on is installed and used, and comprises but is not only limited to installing and using of car door, security door, safety cabinet, strongbox, built-in lock door, built-in lock cabinet and common door and common cabinet.

Described additional manufacture and method thereof without playing mechanical anti-theft lock, is characterized in that:

Lock body during fabrication, lock body manufactures and has via hole, lock core hole, lock groove and oblique locked groove, the centre that lock core hole is manufactured on rear locking is used for installing lock core, have the via hole for allowing connection tongue pass in the manufacture below of lock core hole, the mid portion manufacture of the lock core hole in lock body has lock groove; Described lock groove creates deep-slotted chip breaker or the surface groove of depression on lock core hole, deep-slotted chip breaker creates arcwall face, and surface groove creates inclined-plane, groove that is that deep-slotted chip breaker or surface groove create annular or that be interrupted, communicate with lock core hole, corresponding with the expansion groove on front lock core; Described oblique locked groove system is manufactured on lock core hole, cause depression, along the cannelure on lock core hole direction, corresponding with the position of the skewed slot on front lock core, for allowing the lock core rotation before movable and locking inside of the locking end of switch block.

Lock core during fabrication, carries out division system lock core and causes front lock core and rear lock core; Described front lock core during fabrication, front lock core manufactures and has sliding eye, expansion groove, sliding tray, skewed slot, stealthy hole and special bitting hole; The center of rotation position that described special bitting hole and stealthy hole are manufactured on front lock core is connected, specially join stealthy hole above, stealthy hole later; The shape in described special bitting hole and the shape of pushing tow key same or similar, the front portion of stealthy hole and connector is same or similar; The inside of described sliding eye creates rank or does not have the elongated hole on rank, it is all that blind hole or two ends create the end face of wearing out front lock core or one end creates the end face wearing out front lock core that two ends create, when sliding eye creates and wears out end face, the sliding bar blocking with screw or block with plug or limit with jump ring or limit in sliding eye or the position of guide springs, sliding eye is manufactured on neutral gear place beyond the special bitting hole of the peripheral edge portion rotated close to front lock core, is manufactured on the two ends of expansion groove, with sliding tray with expand groove and communicate; The periphery of front lock core is worn out in the position that described expansion groove is manufactured on the mid portion of sliding eye, communicates with the sliding eye at the sliding tray inside expansion groove and two ends, corresponding with the position of the lock groove on lock body; Special bitting hole is worn out in the inside that described sliding tray is manufactured on expansion groove, communicates with expansion groove, sliding eye and special bitting hole; Described sliding eye and sliding tray and expand groove and create integrally, be manufactured in the lock core body of front lock core; The lock core that described skewed slot is manufactured on the special bitting bore portion of front lock core wears out the outer round surface of front lock core and special bitting hole, communicate with oblique locked groove and special bitting hole, and corresponding with the oblique locked groove on lock core hole, for installing oblique locking device and allowing the parts of oblique locking device operate.

Sliding bar creates cylinder or stairstepping cylinder, and cylinder manufactures thrust hole, and the two sides in thrust hole manufactures the pin hole being fixedly connected with pin end;

Shift fork creates Y-shaped fork or V-shaped fork, or create triangle, shift fork manufactures and has pin-and-hole, the pin-and-hole of described Y-shaped fork is manufactured on the shank of shift fork, the pin-and-hole of described V-shaped fork is manufactured on the junction of the fork of V-shaped, and described shift fork is that leg-of-mutton pin-and-hole is manufactured on a leg-of-mutton angle;

Connecting pin creates pin, is used for connecting shift fork and sliding bar;

Guide springs and top pressure spring create stage clip;

Expanding plate creates spring leaf or flexure strip, or adopts rigid disk and tension spring to carry out being combined into assembly, and tension spring top is pressed between sliding bar and expanding plate; The both sides end face of described expanding plate creates the face of lock core and lock body before pintle hook lock, and the fixed end of expanding plate is arranged on the sliding bar in expansion groove, is fixed on the middle part of sliding bar.

Switch block creates the blocks of bar shaped, and the middle part of blocks manufactures pin-and-hole, and rotational pin is through pin-and-hole; In special bitting hole the same side to key in polylith switch block is installed time, expose the part switch block in special bitting hole, one piece of ratio below one piece short before it; Described switch block is arranged in skewed slot the untie-sell that can rotate and rotates, and can not rotate in lock core hole for lock core before locking.

Rotational pin creates pin or bolt, is fixed in the fixing hole in skewed slot, for fixing switch block.

Top spring creates stage clip or torsion spring.

Rear lock core during fabrication, rear lock core manufactures and has connecting hole; Described connecting hole creates polygon bearing bore or the groove of depression, or the bearing bore of shape of circular arc and line segment composition or groove, be manufactured on the center of rotation position of rear lock core, coordinate with the aft section of connector, parallel with lock core hole, can be through with the stealthy hole on front lock core.

In order to enable special bitting unblank, the shank of the key of special bitting and pushing tow key during fabrication, manufacture as a whole, pushing tow key are created the key not having the oblique flank of tooth of marble lock key by described special bitting; Pushing tow key inserts on the body keyway portion in special bitting hole has at least the middle part of a lateral to manufacture the convex extension having protrusion, manufacturing and pushes away terrace, pushing away terrace for pushing away extension shift fork before convex extension; The part that pushing tow key inserts the key in special bitting hole has at least manufacture on a lateral have rank to push away, rank push away the promote-side for promoting switch block; Described rank pushing causes pushing tow key and inserts the rank that the aft section of the part of the key in special bitting hole is wide, previous section is narrow and formed; The length that described pushing tow key manufactures is longer than the length in special bitting hole, and the part that the length of pushing tow key is longer than special bitting hole is used for promoting connector insertion connecting hole; Described pushing tow key creates with the shape in special bitting hole same or similar, and special bitting hole creates the hole of single groove or multiple-grooved or multidirectional groove; Described multidirectional groove comprises V-shaped groove, U-lag, two-way chute, three-dimensional groove, cross recess, five to groove, six to groove, seven to groove, eight to groove, plum blossom groove;

Described connector during fabrication, connector is created the cylinder that the shape of anterior, rear portion consistent with the shape in stealthy hole and connecting hole is consistent, the front end of connector is created the shape that can coordinate with the front end of pushing tow key, allow pushing tow key can promote connector slide in stealthy hole He in connecting hole, when connector slides in stealthy hole, its rear end can be inserted in connecting hole, for connecting front lock core and rear lock core.

Spring bearing bore during fabrication, is manufactured on the bottom of connecting hole and passes connecting hole, or spring bearing bore being manufactured on the rearward end of connector, or spring bearing bore is manufactured on the rearward end of connector and the bottom of connecting hole simultaneously by described spring bearing bore; Spring bearing bore is created blind hole or bearing bore, for installing return spring; Described return spring creates stage clip.

Be provided with front lock core and rear lock core in lock body, rear lock core is movably arranged on the rearward end of front lock core, disconnects completely with front lock core; Manufacture in described front lock core and have sliding eye, expansion groove, sliding tray, skewed slot, specially bitting hole and stealthy hole, in stealthy hole, connector is installed; Have connecting hole in described rear lock core, the rear end of rear lock core is fixed with connection tongue, and connect tongue and be connected with link gear through after the via hole at lock body rear portion, link gear is connected with dead bolt; Guide springs is arranged on bottom sliding eye, sliding bar is had to be installed in expansion groove and sliding eye before guide springs, the fixed end of expanding plate is fixed on the sliding bar of the part in expansion groove, the expansion end top of expanding plate is pressed on arcwall face in lock groove or inclined-plane, thrust hole place on sliding bar before the fixed end of fixing expanding plate has shift fork to be fixed on sliding bar by connecting pin, and top pressure spring top is pressed on the fork of the shift fork in sliding tray; In described skewed slot, oblique locking device is installed.

For the ease of manufacturing and assembling, the manufacture hop count of lock core before changing, the easily manufactured needs of described lock body according to internal construction and the needs of manufacturing process, the segmentation manufacture again near the end or end in stealthy hole of front lock core, or in the position segmentation manufacture again of expansion groove, or in the segmentation manufacture again of the position of sliding tray, or in the segmentation manufacture again of the position of skewed slot, front lock core is created entirety or multistage, and each section of lock core that segmentation manufactures can synchronous rotary or can separately asynchronous rotation;

In order to manufacture the needs with assembly technology, lock body, during fabrication according to technological requirement and needs, creates entirety or multistage lock body.

The present invention add without play mechanical anti-theft lock rational in infrastructure, to manufacture and easy to use, adopt oblique extension directly to push away rotary unblanking, interlocking, stealthy and antitheft effective; Expanding plate and the locked front lock core of switch block, front lock core and rear lock core disconnect completely and are hidden in stealthy hole with connector, make robber and the Wang Wufa that unblanks rotates rear lock core, achieve the theftproof lock integrating asynchronous interlocking, stealth, self-locking, synchronized links and asynchronous warning function, safety parameters is high; Namely be also merely able to rotate front lock core after the outer locking that used barbarous means to damage and connector part, can not rotate be hidden in front lock core below rear lock core, serve real anti-theft function.

Accompanying drawing explanation

Fig. 1 is that the present invention adds without the shift fork of inside playing mechanical anti-theft lock is the primary structure schematic diagram of V-shaped;

Fig. 2 is the shift fork that the present invention adds without the inside playing mechanical anti-theft lock is leg-of-mutton primary structure schematic diagram;

Fig. 3 is the structural representation in the cross section of front lock core;

Fig. 4 is the surface structure schematic diagram of the right view of Fig. 1 and Fig. 2;

Fig. 5 is the surface structure schematic diagram of the right view of rear lock core;

Fig. 6 is the surface structure schematic diagram of the left view of rear lock core;

Fig. 7 is the surface structure schematic diagram of special bitting;

Fig. 8 is the surface structure schematic diagram in the thrust hole on sliding bar;

Fig. 9 is the surface structure schematic diagram of the expansion groove on front lock core.

It is the pushing tow key of two-way chute and the special bitting hole of two-way chute that additional nothing shown in figure plays mechanical anti-theft lock;

Shown in figure: lock body 1, front lock core 2, connector 3, return spring 4, shift fork 5, sliding bar 6, expansion groove 7, expanding plate 8, lock groove 9, guide springs 10, sliding eye 11, connecting hole 12, rear lock core 13, connect tongue 14, spring bearing bore 15, specially bitting hole 16, pushing tow key 17, push away terrace 18, rank push away 19, sliding tray 21, connecting pin 22, top pressure spring 23, thrust hole 24, tiltedly locked groove 25, skewed slot 26, rotational pin 27, top spring 28, switch block 29.

Detailed description of the invention

The present invention is additional mainly to be comprised lock body 1, front lock core 2, rear lock core 13, connector 3, return spring 4, sliding eye 11, sliding bar 6, shift fork 5, connecting pin 22, top pressure spring 23, sliding tray 21, expansion groove 7, lock groove 9, expanding plate 8, guide springs 10, connecting hole 12 without playing mechanical anti-theft lock, connects tongue 14, spring bearing bore 15, specially bitting hole 16, specially bitting, skewed slot 26, tiltedly locked groove 25, switch block 29, rotational pin 27, top spring 28;

Be provided with front lock core 2 and rear lock core 13 in described lock body 1, rear lock core 13 is movably arranged on the rearward end of front lock core 2, disconnects completely with front lock core 2; There are sliding eye 11, expansion groove 7, sliding tray 21, skewed slot 26, specially bitting hole 16 and stealthy hole in described front lock core 2, connector 3 is installed in stealthy hole; The rear end of described rear lock core 13 is fixed with and connects tongue 14, and connect tongue 14 and be connected with link gear through after the via hole at lock body 1 rear portion, link gear is connected with dead bolt; Described guide springs 10 is arranged on bottom sliding eye 11, sliding bar 6 is had to be installed in expansion groove 7 and sliding eye 11 before guide springs 10, the fixed end of expanding plate 8 is fixed on the sliding bar 6 of this part in expansion groove 7, the expansion end top of expanding plate 8 is pressed on arcwall face in lock groove 9 or inclined-plane, thrust hole 24 place on sliding bar 6 before the fixed end of fixing expanding plate 8 has shift fork 5 to be fixed on sliding bar 6 by connecting pin 22, and top pressure spring 23 top is pressed on the fork of the shift fork 5 in sliding tray 21; In described skewed slot 26, oblique locking device is installed.

There are lock core hole and via hole in center in described lock body 1, and via hole is used to allow and connects hole that tongue 14 passes, rearward end at lock body 1, lock core hole circular hole, before via hole; Be provided with lock core in lock core hole, lock core comprises front lock core 2 and rear lock core 13, and front lock core 2 is arranged on before rear lock core 13; Lock groove 9 and oblique locked groove 25 is had in the circular hole part of lock core hole, described lock groove 9 is deep-slotted chip breaker or the surface groove of depression on the lock core hole in lock body 1, deep-slotted chip breaker has arcwall face, surface groove has inclined-plane, lock groove 9 is corresponding with the position of the expansion groove 7 on front lock core 2, and communicates; Described oblique locked groove 25 is depressions, along the cannelure on lock core hole direction, corresponding with the position of the skewed slot 26 on front lock core 2 on lock core hole, for allow the locking end of switch block 29 inside before movable and locking lock core 2 rotate.

Special bitting hole 16, stealthy hole, skewed slot 26, sliding eye 11, sliding tray 21, expansion groove 7 is had in described front lock core 2, described special bitting hole 16 and stealthy hole all in the centre that front lock core 2 rotates or close to the centre rotated, the previous section of special bitting hole 16 at front lock core 2, the aft section of stealthy Kong Qian lock core 2; Be provided with connector 3 in described stealthy hole, there is stealthy hole the front end of connector 3, is provided with return spring 4 in stealthy hole; Described skewed slot 26 wear out on the lock core of special bitting hole 16 part of front lock core 2 before the outer round surface of lock core 2 and special bitting hole 16, communicate with oblique locked groove 25 and special bitting hole 16, and corresponding with the oblique locked groove 25 on lock core hole, for installing oblique locking device and allowing the parts of oblique locking device operate; Described sliding eye 11 is that inside has rank or do not have the elongated hole on rank, two ends are all the end faces that blind hole or two ends wear out that front lock core 2 is worn out in the end face of front lock core 2 or one end, when sliding eye 11 wears out end face, with screw blocking or with plug blocking or the position by jump ring restriction or the sliding bar 6 limited in sliding eye 11 or guide springs 10, the neutral gear place of sliding eye 11 beyond the special bitting hole 16 of the peripheral edge portion rotated close to front lock core 2, expanded groove 7 and be divided into two sections; The surface of described expansion groove 7 lock core 2 before the interlude of sliding eye 11 is worn out, sliding eye 11 is divided into two sections, front and back, through with two sections, front and back sliding eye 11, communicate with sliding tray 21 and lock groove 9, for the fixed end of fixing expanding plate 8 and the entirety holding expanding plate 8 when allowing the expansion end of expanding plate 8 be squeezed; Described sliding tray 21 communicates, for installing top pressure spring 23 and allowing shift fork 5 swing in sliding tray 21 with expansion groove 7, sliding eye 11 and special bitting hole 16 in the inside of expansion groove 7; Described sliding eye 11 and sliding tray 21 and expand groove 7 and be connected in one, in the lock core body of front lock core 2.

A locking system is outward had at least in a lock, outer described locking comprises sliding eye 11, sliding bar 6, thrust hole 24, shift fork 5, connecting pin 22, guide springs 10, top pressure spring 23, expansion groove 7, expanding plate 8, sliding tray 21 and lock groove 9, the bottom of described sliding eye 11 is provided with guide springs 10, guide springs 10 top is pressed on the sliding bar 6 before it, sliding bar 6 is arranged in sliding eye 11 and expansion groove 7, the middle part of sliding bar 6 is in expansion groove 7, two ends are in sliding eye 11, the sliding bar 6 of this part in expansion groove 7 is fixed with expanding plate 8, shift fork 5 is fixed in the thrust hole 24 on the sliding bar 6 before the fixed end of expanding plate 8 by connecting pin 22, the top pressure spring top, one end be arranged in sliding tray 21 is pressed in the fork of shift fork 5, the expansion end top of expanding plate 8 is pressed on the inclined-plane in the arcwall face of the deep-slotted chip breaker in lock groove 9 or surface groove, expanding plate 8 in expansion groove 7 or expanding plate 8 simultaneously expanding in groove 7 and lock groove 9, when special bitting is not inserted in special bitting hole 16, the fixed end of described expanding plate 8 in expansion groove 7, flared end locked with lock body 1 for front lock core 2 lock groove 9 in, front lock core 2 can not rotate in lock body 1, opens locking outside realization, when special bitting hole 16 drawback lock is inserted in special bitting, under the promotion of shift fork 5, sliding bar 6 moves after promoting expanding plate 8, the oblique compression on arcwall face in lock groove 9 of the flared end of expanding plate 8 or inclined-plane and under guiding, fixed end along expanding plate 8 is drawn close to expansion groove 7, along with the continuation of sliding bar 6 is moved, the expansion end of expanding plate 8 slips on inwall that arcwall face in lock groove 9 or sloped roof be pressed in the lock core hole in lock body 1 and enters in expansion groove 7, the locking of lock core 2 and lock body 1 before removing,

Described sliding bar 6 is cylinder or stairstepping cylinder, cylinder has thrust hole 24, and the two sides in thrust hole 24 is provided with the pin hole being fixedly connected with pin 22 end;

Described shift fork 5 is Y-shaped fork or V-shaped fork, or triangle, shift fork 5 is provided with pin-and-hole, and the pin-and-hole of described Y-shaped fork is at the shank of shift fork 5, the pin-and-hole of described V-shaped fork is in the junction of the fork of V-shaped, and described shift fork 5 is that leg-of-mutton pin-and-hole is on a leg-of-mutton angle;

Described connecting pin 22 is pins, is used for connecting shift fork 5 and sliding bar 6;

Described guide springs 10 and top pressure spring 23 are stage clips;

Described expanding plate 8 is spring leaf or flexure strip, or the assembly of rigid disk and tension spring, and tension spring top is pressed between sliding bar 6 and expanding plate 8; The both sides end face of described expanding plate 8 is faces of lock core 2 and lock body 1 before pintle hook lock, and the fixed end of expanding plate 8 is arranged on the sliding bar 6 in expansion groove 7, is fixed on the middle part of sliding bar 6.

An oblique locking device is had at least in a lock; Described oblique locking device comprises skewed slot 26, tiltedly locked groove 25, switch block 29, rotational pin 27, top spring 28, described switch block 29 is fixed in skewed slot 26 by rotational pin 27, the promote-side of switch block 29 is stretched in special bitting hole 16, locking end stretches in oblique locked groove 25, and the top, one end of top spring 28 is pressed on switch block 29, other end top is pressed on the wall of skewed slot 26.Rank on pushing tow key 17 push away 19 promotions when exposing the promote-side of the switch block 29 in special bitting hole 16, and the untie-sell 27 that rotates of the locking end of switch block 29 in oblique locked groove 25 rotates and shifts out in oblique locked groove 25, thus removes the locking to front lock core 2; When pushing tow key 17 does not insert in special bitting hole 16, locking end locked front lock core 2 in oblique locked groove 25 of switch block 29.

Described switch block 29 is blocks of bar shaped, and there is pin-and-hole at the middle part of blocks, and rotational pin 27 is through pin-and-hole; In special bitting hole 16 the same side to key in polylith switch block 29 is installed time, expose the part switch block 29 in special bitting hole 16, one piece of ratio below one piece short before it; The untie-sell 27 that can rotate in skewed slot 26 of described switch block 29 is rotated, and can not rotate in lock core hole for lock core before locking 2;

Described rotational pin 27 is pin or bolt, is fixed in the fixing hole in skewed slot 26, for fixing switch block 29;

Described top spring 28 is stage clip or torsion spring.

The center of the rear end of described rear lock core 13 is fixed with and connects tongue 14 through lock body 1 via hole below, and there is the connecting hole 12 of depression the front end of the center of rotation of rear lock core 13; Described connecting hole 12 is polygon bearing bore or the groove of depression, or the bearing bore of shape of circular arc and line segment composition or groove; Spring bearing bore 15 is with or without in the bottom of connecting hole 12, when the bottom of described connecting hole 12 does not have a spring bearing bore 15, spring bearing bore 15 is located at the rearward end of connector 3, is provided with return spring 4 in spring bearing bore 15, and one end of return spring 4 withstands on the bottom of connecting hole 12; When spring bearing bore 15 arranged at the bottom of described connecting hole 12, the core that spring bearing bore 15 and connecting hole 12 rotate at rear lock core 13 or the part close to center of rotation, spring bearing bore 15 is later through connecting hole 12 above, be provided with return spring 4 in spring bearing bore 15, one end of return spring 4 withstands on the rearward end of connector 3.

When having spring bearing bore 15 in described rear lock core 13, spring bearing bore 15 is at the connecting hole 12 passed back through above of the bottom of connecting hole 12; When not having spring bearing bore 15 in described rear lock core 13, spring bearing bore 15 is in the rearward end of connector 3; Described spring bearing bore 15 also can simultaneously in the rearward end of connector 3 and the bottom of connecting hole 12; Described spring bearing bore 15 is bearing bore or blind hole, for installing return spring 4; Described return spring 4 is springs;

Described connector 3 is one section of connector 3, the front end of connector 3 coordinates with the front end of pushing tow key 17 can slide in stealthy hole He in connecting hole 12, when connector 3 slides in stealthy hole, its rear end can be inserted in the connecting hole 12 in rear lock core 13, for connecting front lock core 2 and rear lock core 13.

Described special bitting comprises pushing tow key 17 and the shank of the key, and pushing tow key 17 is fixed on the shank of the key; Described pushing tow key 17 is promotion keys, is the key not having the oblique flank of tooth of marble lock key; The part that pushing tow key 17 inserts the key in special bitting hole 16 has at least the middle part of a lateral to have the convex extension of protrusion, before convex extension, pushes away terrace 18, push away terrace 18 and hang shift fork 5 for pushing away; The part that pushing tow key 17 inserts the key in special bitting hole 16 having at least on a lateral has rank to push away 19, and rank push away 19 for promoting the promote-side of switch block 29; It is rank that pushing tow key 17 inserts that the aft section of the part of the key in special bitting hole 16 is wide, previous section is narrow and formed that described rank push away 19; The length of described pushing tow key 17 is longer than the length in special bitting hole 16, and the length of pushing tow key 17 is used for promoting connector 3 than the part of special bitting hole 16 length and inserts connecting hole 12.

In order to increase safety and the disguise of theftproof lock, rear lock core 13 is movably arranged on the rearward end of front lock core 2, disconnects completely and hiddenly realizes being connected stealth, do not have the insertion of pushing tow key 17 can not connect and transmit power to rear lock core 13 with front lock core 2; The locked front lock core 2 of switch block 29 of oblique locking device realizes interlocking stealth, does not have pushing tow key 17 to insert the promote-side promoting switch block 29 in special bitting hole 16 and can not open oblique locking device; Expanding plate 8 is simultaneously in expansion groove 7 and in lock groove 9, there is no the insertion of pushing tow key 17, expanding plate 8 can not move, arcwall face in lock groove 9 or inclined-plane can not guide and oblique compression expanding plate 8, expanding plate 8 can not enter in expansion groove 7 completely, can not remove the locking to front lock core 2.

In order to increase the interlocking capability of theftproof lock, disguise and anti-theft effect, the locked front lock core 2 of expanding plate 8 is adopted to realize an outer locking; Adopt switch block 29 front lock core 2 and lock body 1 locked realize rotating interlock; Before adopting, lock core 2 disconnects completely with rear lock core 13 and connector 3 is hidden in stealthy hole and realizes being connected stealth.

In order to can be real antitheft, before adopting, lock core 2 and rear lock core 13 disconnect connector 3 afterwards completely and are hidden in stealthy hole and realize being connected stealth; Adopt expanding plate 8 and switch block 29 stealth in lock core and lock body 1, realize interlocking stealthy.

In order to enable special bitting promote sliding bar 6 and connector 3 smoothly, the length of described sliding bar 6 is shorter than the length of sliding eye 11; Described pushing tow key 17 is longer than special bitting hole 16.

In order to open outer locking, the arcwall face of expanding plate 8 when mobile in lock groove 9 or inclined-plane oblique compression expanding plate 8, make expanding plate 8 exit in lock groove 9 and open an outer locking.

When unblanking with special bitting, special bitting hole 16 is inserted with the pushing tow key 17 of special bitting, in the process inserted, the promote-side that the rank on pushing tow key 17 push away 19 promotion switch blocks 29 untie-sell 27 that rotates rotates and shifts out in oblique locked groove 25, removes the locking to front lock core 2, meanwhile, the terrace 18 that pushes away that one before on pushing tow key 17 convex hangs up tangles shift fork 5 fork below or angle that expose sliding tray 21, and promote shift fork 5 and rotate around connecting pin 22, before shift fork 5 one is made to pitch or sliding tray 21 is exposed and one fork or angle proceed in sliding tray 21 below in angle, now, on pushing tow key 17 below one convex hang up push away terrace 18 tangle expose sliding tray 21 shift fork 5 before a fork or angle continue to promote shift fork 5, and now the front block of shift fork 5 can not rotate around connecting pin 22 on the aperture in thrust hole 24 again, shift fork 5 moves after just driving sliding bar 6, move after driving expanding plate 8 simultaneously, along with the continuation of pushing tow key 17 promotes, drive on the arcwall face of expanding plate 8 in lock groove 9 or inclined-plane and slide, under arcwall face on lock groove 9 or the guiding on inclined-plane and extruding, the expansion end of expanding plate 8 is drawn close to the sliding bar 6 in expansion groove 7, expanding plate 8 leaves lock groove 9 along with moving after sliding bar 6, arrive the inwall of lock core hole and enter in expansion groove 7, open an outer locking, pushing tow key 17 is through behind special bitting hole 16, and the front end of pushing tow key 17 is inserted promotion connector 3 in stealthy hole and inserted in connecting hole 12, completes the connection with front lock core 2 and rear lock core 13, now, rotate special bitting, rear lock core 13 rotates with front lock core 2 and is with the tongue 14 that is dynamically connected to rotate, and connects tongue 14 and drives link gear open dead bolt and unblank.

When pushing tow key 17 exits special bitting hole 16, the untie-sell 27 that rotates under the powered of top spring 28 of the locking end of switch block 29 rotates and enters locked front lock core 2 in oblique locked groove 25, completes the locking to front lock core 2; Under the promotion of top pressure spring 23, one before on pushing tow key 17 convex hang up push away terrace 18 tangle expose sliding tray 21 shift fork 5 before a fork or angle pull shift fork 5 turn round around connecting pin 22 and make before shift fork 5 one to pitch or angle enters in sliding tray 21, under the promotion of top pressure spring 23 and under the promotion of guide springs 10, sliding bar 6 moves forward and drives expanding plate 8 to move forward, enter under the flexible powered of expanding plate 8 self in lock groove 9, press to the arcwall face in lock groove 9 or inclined-plane, complete the locking to front lock core 2; Connector 3, under the promotion of return spring 4, exits connecting hole 12 and enters in stealthy hole completely, front lock core 2 is disconnected completely with rear lock core 13 and in can not being connected, front lock core 2 can not be connected with rear lock core 13.

When robber or the king that unblanks unblank with technical tool, the pellet that can not find cylinder lock in special bitting hole 16 is stretched into steel wire, and exposing the switch block 29 of skewed slot 26 and shift fork 5 is exposed the fork of sliding tray 21 or angle thinking it is that the pushing tow pellet and attempting of cylinder lock is pressed into the switch block 29 exposing skewed slot 26 in skewed slot 26 and opens theftproof lock exposing in the fork of sliding tray 21 or angle press-in sliding tray 21 by mistake, when pressing fork or angle below, emerge again the sliding tray 21 and steel wire that hook is dynamic is backed down in above one fork or angle, make robber or the king that unblanks has no way of doing it, adding the switch block 29 exposing skewed slot 26 can not be pressed in skewed slot 26, front lock core 2 can not rotate, namely robber or the king that unblanks use steel wire to open outer locking and oblique locking device, have rotated front lock core 2, but can not rotate rear lock core 13 because the connector 3 in stealthy hole is not connected with rear lock core 13.

Robber or unblank king need not specially bitting is unblanked time, enter after not having pushing tow key 17 to insert special bitting hole 16 in stealthy hole promote connector 3 enter in connecting hole 12, front lock core 2 and rear lock core 13 cannot be made simultaneously to rotate, can not theftproof lock be opened; Do not have pushing tow key 17 to insert the promote-side promoting switch block 29 in special bitting hole 16 and can not open oblique locking device, front lock core 2 cannot be made to rotate; There is no the promotion of special bitting, an outer locking can not be opened, expanding plate 8 can not be made to exit lock groove 9 and front lock core 2 can not be rotated, rear lock core 13 cannot be rotated, theftproof lock can not be opened; Add the difficulty of pirate of the open lock, thus play the effect of outer locking, self-locking, stealth, multiple locking and multiple safety.

After namely robber or the king that unblanks use flat instrument to adopt barbarous way to damage expanding plate 8 and switch block 29, the front lock core 2 of forced rotating, rear lock core 13 is not connected with front lock core 2 because of stealthy and does not rotate with front lock core 2, plays anti-theft function.

Claims (8)

1. an additional nothing plays mechanical anti-theft lock, it is characterized in that: the described additional latch system not having cylinder lock without bullet mechanical anti-theft lock, only has an outer latch system, oblique locking device, synchronized links system, mainly comprise: lock body (1), front lock core (2), rear lock core (13), connector (3), return spring (4), sliding eye (11), sliding bar (6), shift fork (5), connecting pin (22), top pressure spring (23), sliding tray (21), expansion groove (7), lock groove (9), expanding plate (8), guide springs (10), connecting hole (12), connect tongue (14), spring bearing bore (15), special bitting hole (16), special bitting, skewed slot (26), oblique locked groove (25), switch block (29), rotational pin (27), top spring (28),

Be provided with front lock core (2) and rear lock core (13) in described lock body (1), rear lock core (13) is movably arranged on the rearward end of front lock core (2), disconnects completely with front lock core (2), there are sliding eye (11), expansion groove (7), sliding tray (21), skewed slot (26), specially bitting hole (16) and stealthy hole in described front lock core (2), connector (3) is installed in stealthy hole, the rear end of described rear lock core (13) is fixed with and connects tongue (14), and be connected with link gear after connecting the via hole of tongue (14) through lock body (1) rear portion, link gear is connected with dead bolt, described guide springs (10) is arranged on sliding eye (11) bottom, sliding bar (6) is had to be installed in expansion groove (7) and sliding eye (11) before guide springs (10), the fixed end of expanding plate (8) is fixed on the sliding bar (6) of this part in expansion groove (7), the expansion end top of expanding plate (8) is pressed on arcwall face in lock groove (9) or inclined-plane, thrust hole (24) place on sliding bar (6) before the fixed end of fixing expanding plate (8) has shift fork (5) to be fixed on sliding bar (6) by connecting pin (22), top pressure spring (23) top is pressed on the fork of the shift fork (5) in sliding tray (21), in described skewed slot (26), oblique locking device is installed,

There are lock core hole and via hole in center in described lock body (1), and via hole is used to allow and connects hole that tongue (14) passes, rearward end in lock body (1), lock core hole circular hole, before via hole; Be provided with lock core in lock core hole, lock core comprises front lock core (2) and rear lock core (13), and front lock core (2) is arranged on before rear lock core (13); Lock groove (9) and oblique locked groove (25) is had in the circular hole part of lock core hole, described lock groove (9) is deep-slotted chip breaker or the surface groove of depression on the lock core hole in lock body (1), deep-slotted chip breaker there is arcwall face, surface groove there is inclined-plane, lock groove (9) is corresponding with the position of the expansion groove (7) on front lock core (2), and communicates; Described oblique locked groove (25) is depression, along the cannelure on lock core hole direction, corresponding with the position of the skewed slot (26) on front lock core (2) on lock core hole, for allowing lock core (2) rotation before movable and locking inside of the locking end of switch block (29);

Special bitting hole (16), stealthy hole, skewed slot (26), sliding eye (11), sliding tray (21), expansion groove (7) is had in described front lock core (2), described special bitting hole (16) and stealthy hole all the centre that front lock core (2) rotates or close to rotate centre, the aft section of the previous section of special bitting hole (16) in front lock core (2), stealthy Kong Qian lock core (2); Be provided with connector (3) in described stealthy hole, there is stealthy hole the front end of connector (3), is provided with return spring (4) in stealthy hole; Described skewed slot (26) wears out outer round surface and the special bitting hole (16) of front lock core (2) on the lock core of special bitting hole (16) part of front lock core (2), communicate with oblique locked groove (25) and special bitting hole (16), and corresponding with the oblique locked groove (25) on lock core hole, for installing oblique locking device and allowing the parts of oblique locking device operate; Described sliding eye (11) is that inside has rank or do not have the elongated hole on rank, two ends are all the end faces that blind hole or two ends wear out that front lock core (2) are worn out in the end face of front lock core (2) or one end, when sliding eye (11) wears out end face, with screw blocking or with plug blocking or the position by jump ring restriction or the sliding bar (6) limited in sliding eye (11) or guide springs (10), the neutral gear place of sliding eye (11) beyond the special bitting hole (16) of the peripheral edge portion rotated close to front lock core (2), expanded groove (7) and be divided into two sections; Described expansion groove (7) wears out the surface of front lock core (2) at the interlude of sliding eye (11), sliding eye (11) is divided into two sections, front and back, through with two sections, front and back sliding eye (11), communicate with sliding tray (21) and lock groove (9), for the fixed end of fixing expanding plate (8) and the entirety holding expanding plate (8) when allowing the expansion end of expanding plate (8) be squeezed; Described sliding tray (21) communicates, for installing top pressure spring (23) and allowing shift fork (5) swing in sliding tray (21) with expansion groove (7), sliding eye (11) and special bitting hole (16) in the inside of expansion groove (7); Described sliding eye (11) and sliding tray (21) and expand groove (7) and be connected in one, in the lock core body of front lock core (2);

A locking system is outward had at least in a lock, outer described locking comprises sliding eye (11), sliding bar (6), thrust hole (24), shift fork (5), connecting pin (22), guide springs (10), top pressure spring (23), expansion groove (7), expanding plate (8), sliding tray (21) and lock groove (9), the bottom of described sliding eye (11) is provided with guide springs (10), guide springs (10) top is pressed on the sliding bar (6) before it, sliding bar (6) is arranged in sliding eye (11) and expansion groove (7), the middle part of sliding bar (6) is in expansion groove (7), two ends are in sliding eye (11), the sliding bar (6) of this part in expansion groove (7) is fixed with expanding plate (8), shift fork (5) is fixed in the thrust hole (24) on the sliding bar (6) before the fixed end of expanding plate (8) by connecting pin (22), the top pressure spring top, one end be arranged in sliding tray (21) is pressed in the fork of shift fork (5), the expansion end top of expanding plate (8) is pressed on the inclined-plane in the arcwall face of the deep-slotted chip breaker in lock groove (9) or surface groove, expanding plate (8) in expansion groove (7) or expanding plate (8) simultaneously expanding in groove (7) and lock groove (9), when special bitting is not inserted in special bitting hole (16), the fixed end of described expanding plate (8) in expansion groove (7), flared end in lock groove (9) front lock core (2) and lock body (1) locked, front lock core (2) can not rotate in lock body (1), realizes an outer locking, when special bitting hole (16) drawback lock is inserted in special bitting, under the promotion of shift fork (5), sliding bar (6) moves after promoting expanding plate (8), the oblique compression on arcwall face in lock groove (9) of the flared end of expanding plate (8) or inclined-plane and under guiding, fixed end along expanding plate (8) is drawn close to expansion groove (7), along with the continuation of sliding bar (6) is moved, the expansion end of expanding plate (8) slips on inwall that arcwall face in lock groove (9) or sloped roof be pressed in the lock core hole in lock body (1) and enters in expansion groove (7), the locking of lock core (2) and lock body (1) before removing,

Described sliding bar (6) is cylinder or stairstepping cylinder, cylinder has thrust hole (24), and the two sides of thrust hole (24) is provided with the pin hole being fixedly connected with pin (22) end;

Described shift fork (5) is Y-shaped fork or V-shaped fork, or triangle, shift fork (5) is provided with pin-and-hole, the shank of pin-and-hole in shift fork (5) of described Y-shaped fork, the pin-and-hole of described V-shaped fork is in the junction of the fork of V-shaped, and described shift fork (5) is that leg-of-mutton pin-and-hole is on a leg-of-mutton angle;

Described connecting pin (22) is pin, is used for connecting shift fork (5) and sliding bar (6);

Described guide springs (10) and top pressure spring (23) are stage clips;

Described expanding plate (8) is spring leaf or flexure strip, or the assembly of rigid disk and tension spring, and tension spring top is pressed between sliding bar (6) and expanding plate (8); The both sides end face of described expanding plate (8) is the face of lock core before pintle hook lock (2) and lock body (1), and the fixed end of expanding plate (8) is arranged on the middle part that the sliding bar (6) expanded in groove (7) is upper, be fixed on sliding bar (6);

An oblique locking device is had at least in a lock; Described oblique locking device comprises skewed slot (26), tiltedly locked groove (25), switch block (29), rotational pin (27), top spring (28), described switch block (29) is fixed in skewed slot (26) by rotational pin (27), the promote-side of switch block (29) is stretched in special bitting hole (16), locking end stretches in oblique locked groove (25), and the top, one end on top spring (28) is pressed on switch block (29), other end top is pressed on the wall of skewed slot (26); Rank on pushing tow key (17) push away (19) when promoting the promote-side of exposing switch block (29) in special bitting hole (16), the untie-sell (27) that rotates of the locking end of switch block (29) in oblique locked groove (25) rotates and shifts out in oblique locked groove (25), thus removes locking to front lock core (2); When pushing tow key (17) does not insert in special bitting hole (16), locking end locked front lock core (2) in oblique locked groove (25) of switch block (29);

Described switch block (29) is the blocks of bar shaped, and there is pin-and-hole at the middle part of blocks, and rotational pin (27) is through pin-and-hole; In special bitting hole (16) the same side to key in polylith switch block (29) are installed time, expose the part switch block (29) in special bitting hole (16), one piece of ratio below one piece short before it; Described switch block (29) can rotate in skewed slot (26) untie-sell (27) rotate, can not rotate in lock core hole for lock core before locking (2);

Described rotational pin (27) is pin or bolt, is fixed in the fixing hole in skewed slot (26), for fixing switch block (29);

Described top spring (28) is stage clip or torsion spring;

The center of the rear end of described rear lock core (13) is fixed with and connects tongue (14) through the via hole after lock body (1), and there is the connecting hole (12) of depression the front end of the center of rotation of rear lock core (13); Described connecting hole (12) is polygon bearing bore or the groove of depression, or the bearing bore of shape of circular arc and line segment composition or groove; Spring bearing bore (15) is with or without in the bottom of connecting hole (12), when the bottom of described connecting hole (12) does not have spring bearing bore (15), spring bearing bore (15) is located at the rearward end of connector (3), be provided with return spring (4) in spring bearing bore (15), one end of return spring (4) withstands on the bottom of connecting hole (12); When spring bearing bore (15) arranged at the bottom of described connecting hole (12), the core that spring bearing bore (15) and connecting hole (12) rotate at rear lock core (13) or the part close to center of rotation, spring bearing bore (15) is later through connecting hole (12) above, be provided with return spring (4) in spring bearing bore (15), one end of return spring (4) withstands on the rearward end of connector (3);

When having spring bearing bore (15) in described rear lock core (13), spring bearing bore (15) is at the connecting hole (12) passed back through above of the bottom of connecting hole (12); When there is no spring bearing bore (15) in described rear lock core (13), spring bearing bore (15) rearward end in connector (3); Described spring bearing bore (15) also can simultaneously in the rearward end of connector (3) and the bottom of connecting hole (12); Described spring bearing bore (15) is bearing bore or blind hole, for installing return spring (4); Described return spring (4) is spring;

Described connector (3) is one section of connector (3), the front end of connector (3) coordinates with the front end of pushing tow key (17) can slide in stealthy hole He in connecting hole (12), when connector (3) slides in stealthy hole, its rear end can be inserted in the connecting hole (12) in rear lock core (13), for connecting front lock core (2) and rear lock core (13);

Described special bitting comprises pushing tow key (17) and the shank of the key, and pushing tow key (17) is fixed on the shank of the key; Described pushing tow key (17) is promotion key, is the key not having the oblique flank of tooth of marble lock key; The part that pushing tow key (17) inserts the key in special bitting hole (16) has at least the middle part of a lateral to have the convex extension of protrusion, before convex extension, pushes away terrace (18), push away terrace (18) and hang shift fork (5) for pushing away; The part that pushing tow key (17) inserts the key in special bitting hole (16) has at least on a lateral has rank to push away (19), and rank push away (19) for promoting the promote-side of switch block (29); It is the rank that pushing tow key (17) inserts that the aft section of the part of the key in special bitting hole (16) is wide, previous section is narrow and formed that described rank push away (19); The length of described pushing tow key (17) is longer than the length of special bitting hole (16), and the part that the length of pushing tow key (17) is longer than special bitting hole (16) is used for promoting connector (3) insertion connecting hole (12);

In order to increase safety and the disguise of theftproof lock, rear lock core (13) is movably arranged on the rearward end of front lock core (2), disconnect completely with front lock core (2) and hiddenly realize being connected stealth, not having the insertion of pushing tow key (17) can not connect and transmit power to rear lock core (13); The locked front lock core (2) of switch block (29) of oblique locking device realizes interlocking stealth, does not have pushing tow key (17) to insert the promote-side promoting switch block (29) in special bitting hole (16) and can not open oblique locking device; Expanding plate (8) is simultaneously in expansion groove (7) and in lock groove (9), there is no the insertion of pushing tow key (17), expanding plate (8) can not move, arcwall face in lock groove (9) or inclined-plane can not guide and oblique compression expanding plate (8), expanding plate (8) can not enter in expansion groove (7) completely, can not remove the locking to front lock core (2);

In order to increase the interlocking capability of theftproof lock, disguise and anti-theft effect, expanding plate (8) locked front lock core (2) is adopted to realize an outer locking; Adopt switch block (29) locked to front lock core (2) and lock body (1) realize rotating interlock; Before adopting, lock core (2) disconnects completely with rear lock core (13) and connector (3) is hidden in stealthy hole and realizes being connected stealth;

When unblanking with special bitting, special bitting hole (16) is inserted with the pushing tow key (17) of special bitting, in the process inserted, rank on pushing tow key (17) push away (19) promote switch block (29) promote-side rotate untie-sell (27) rotate and shift out in oblique locked groove (25), remove the locking to front lock core (2), meanwhile, the terrace (18) that pushes away that one before on pushing tow key (17) convex hangs up tangles shift fork (5) fork below or angle that expose sliding tray (21), and promote shift fork (5) and rotate around connecting pin (22), one before shift fork (5) is made to pitch or sliding tray (21) is exposed and one fork or angle proceed in sliding tray (21) below in angle, now, on pushing tow key (17) below one convex hang up push away terrace (18) tangle expose sliding tray (21) shift fork (5) before a fork or angle continue to promote shift fork (5), and now the front block of shift fork (5) can not rotate around connecting pin (22) on the aperture of thrust hole (24) again, shift fork (5) moves after just driving sliding bar (6), move after driving expanding plate (8) simultaneously, along with the continuation of pushing tow key (17) promotes, drive on expanding plate (8) arcwall face in lock groove (9) or inclined-plane and slide, under arcwall face on lock groove (9) or the guiding on inclined-plane and extruding, the expansion end of expanding plate (8) is drawn close to the sliding bar (6) in expansion groove (7), expanding plate (8) leaves lock groove (9) along with moving after sliding bar (6), arrive the inwall of lock core hole and enter in expansion groove (7), open an outer locking, pushing tow key (17) is through after special bitting hole (16), and the front end of pushing tow key (17) is inserted in stealthy hole and promoted, in connector (3) insertion connecting hole (12), to complete the connection with front lock core (2) and rear lock core (13), now, rotate special bitting, rear lock core (13) rotates with front lock core (2) and is with the tongue (14) that is dynamically connected to rotate, and connects tongue (14) and drives link gear open dead bolt and unblank,

When pushing tow key (17) exits special bitting hole (16), the untie-sell (27) that rotates under the powered on top spring (28) of the locking end of switch block (29) rotates and enters locked front lock core (2) in oblique locked groove (25), completes the locking to front lock core (2), under the promotion of top pressure spring (23), one before on pushing tow key (17) convex hang up push away terrace (18) tangle expose sliding tray (21) shift fork (5) before a fork or angle pulls shift fork (5) to make one before shift fork (5) to pitch around connecting pin (22) revolution or angle enters in sliding tray (21), under the promotion of top pressure spring (23) and under the promotion of guide springs (10), sliding bar (6) moves forward and drives expanding plate (8) to move forward, enter under the flexible powered of expanding plate (8) self in lock groove (9), press to the arcwall face in lock groove (9) or inclined-plane, complete the locking to front lock core (2), connector (3), under the promotion of return spring (4), exits connecting hole (12) and enters in stealthy hole completely, front lock core (2) is disconnected completely with rear lock core (13) and in can not being connected, front lock core (2) can not be connected with rear lock core (13),

When robber or the king that unblanks unblank with technical tool, the pellet that can not find cylinder lock in special bitting hole (16) is stretched into steel wire, and expose skewed slot (26) switch block (29) and shift fork (5) expose the fork of sliding tray (21) or angle think by mistake be cylinder lock pushing tow pellet and attempt to open theftproof lock being pressed in sliding tray (21) in the switch block (29) press-in skewed slot (26) exposing skewed slot (26) with the fork or angle that expose sliding tray (21), when pressing fork or angle below, emerge again sliding tray (21) and the steel wire that hook is dynamic is backed down in above one fork or angle, make robber or the king that unblanks has no way of doing it, adding the switch block (29) exposing skewed slot (26) can not be pressed in skewed slot (26), front lock core (2) can not rotate, namely robber or the king that unblanks use steel wire to open outer locking and oblique locking device, have rotated front lock core (2), but can not rotate rear lock core (13) because the connector (3) in stealthy hole is not connected with rear lock core (13),

Robber or unblank king need not specially bitting is unblanked time, entering promotion connector (3) in stealthy hole after not having pushing tow key (17) to insert special bitting hole (16) enters in connecting hole (12), front lock core (2) and rear lock core (13) cannot be made simultaneously to rotate, can not theftproof lock be opened; Do not have pushing tow key (17) to insert the promote-side promoting switch block (29) in special bitting hole (16) and oblique locking device can not be opened, front lock core (2) cannot be made to rotate; There is no the promotion of special bitting, an outer locking can not be opened, expanding plate (8) can not be made to exit lock groove (9) and front lock core (2) can not be rotated, rear lock core (13) cannot be rotated, theftproof lock can not be opened; Add the difficulty of pirate of the open lock, thus play the effect of outer locking, self-locking, stealth, multiple locking and multiple safety;

After namely robber or the king that unblanks use flat instrument to adopt barbarous way to damage expanding plate (8) and switch block (29), forced rotating front lock core (2), rear lock core (13) is not connected and does not rotate with front lock core (2) with front lock core (2) because of stealthy, plays anti-theft function.

2. according to claim 1 additional without playing mechanical anti-theft lock, it is characterized in that: in order to can be real antitheft, before adopting, lock core (2) and rear lock core (13) disconnect rear connector (3) completely and are hidden in stealthy hole and realize being connected stealth; Adopt expanding plate (8) and switch block (29) stealth in lock core and lock body (1), realize interlocking stealthy.

3. according to claim 1 additional without playing mechanical anti-theft lock, it is characterized in that: in order to enable special bitting promote sliding bar (6) and connector (3) smoothly, the length of described sliding bar (6) is shorter than the length of sliding eye (11); Described pushing tow key (17) is longer than special bitting hole (16).

4. according to claim 1 additional without playing mechanical anti-theft lock, it is characterized in that: in order to an outer locking can be opened, the arcwall face of expanding plate (8) when mobile in lock groove (9) or inclined-plane oblique compression expanding plate (8), make expanding plate (8) exit in lock groove (9) and open an outer locking.

5. according to claim 1 additional without playing mechanical anti-theft lock, it is characterized in that: in order to expand the scope of application, the described additional place without playing mechanical anti-theft lock and be applicable to the antitheft door of all kinds of needs, cabinet and so on is installed and used, and comprises but be not only limited to being arranged on car door, security door, safety cabinet, strongbox, built-in lock door, built-in lock cabinet and common door and commonly cashier's office in a shop using.

6. according to claim 1 additional without playing mechanical anti-theft lock, it is characterized in that: described additional without play mechanical anti-theft lock rational in infrastructure, to manufacture and easy to use, adopt oblique extension directly to push away rotary unblanking, interlocking, stealthy and antitheft effective; Expanding plate (8) and the locked front lock core (2) of switch block (29), front lock core (2) and rear lock core (13) disconnect completely and connector (3) is hidden in stealthy hole, make robber and Wang Wufa rotation rear lock core (13) that unblanks, achieve the theftproof lock integrating asynchronous interlocking, stealth, self-locking, synchronized links and asynchronous warning function, safety parameters is high; Namely be also merely able to rotate front lock core (2) after the outer locking that used barbarous means to damage and connector (3) part, can not rotate be hidden in front lock core (2) below rear lock core (13), front lock core (2) is rotated and rear lock core (13) non rotating, serves real anti-theft function.

7. an additional manufacture method without playing mechanical anti-theft lock, it is characterized in that: lock body (1) during fabrication, via hole, lock core hole, lock groove (9) and oblique locked groove (25) is had in the upper manufacture of lock body (1), the centre that lock core hole is manufactured on rear locking (1) is used for installing lock core, have the via hole for allowing connection tongue (14) pass in the manufacture below of lock core hole, the mid portion manufacture of the lock core hole in lock body (1) has lock groove (9); Described lock groove (9) creates deep-slotted chip breaker or the surface groove of depression on lock core hole, deep-slotted chip breaker creates arcwall face, surface groove creates inclined-plane, that deep-slotted chip breaker or surface groove create annular or be interrupted groove, communicate with lock core hole, corresponding with the expansion groove (7) on front lock core (2); Described oblique locked groove (25) is manufactured on lock core hole, cause depression, along the cannelure on lock core hole direction, corresponding with the position of the skewed slot (26) on front lock core (2), for allowing lock core (2) rotation before movable and locking inside of the locking end of switch block (29);

Lock core during fabrication, carries out division system lock core and causes front lock core (2) and rear lock core (13), during fabrication, the upper manufacture of front lock core (2) has sliding eye (11), expansion groove (7), sliding tray (21), skewed slot (26), stealthy hole and special bitting hole (16) to described front lock core (2), the center of rotation position that described special bitting hole (16) and stealthy hole are manufactured on front lock core (2) is connected, specially join stealthy hole above, stealthy hole later, the shape of described special bitting hole (16) and the shape of pushing tow key (17) same or similar, the front portion of stealthy hole and connector (3) is same or similar, the inside of described sliding eye (11) creates rank or does not have the elongated hole on rank, it is all that blind hole or two ends create the end face of wearing out front lock core (2) or one end creates the end face wearing out front lock core (2) that two ends create, when sliding eye (11) creates and wears out end face, the sliding bar (6) blocking with screw or block with plug or limit with jump ring or limit in sliding eye (11) or the position of guide springs (10), sliding eye (11) is manufactured on the neutral gear place beyond the special bitting hole (16) of the peripheral edge portion rotated close to front lock core (2), be manufactured on the two ends of expansion groove (7), with sliding tray (21), communicate with expansion groove (7), the periphery of front lock core (2) is worn out in the position that described expansion groove (7) is manufactured on the mid portion of sliding eye (11), communicate with the sliding tray (21) of expansion groove (7) the inside and the sliding eye (11) at two ends, corresponding with the position of the lock groove (9) on lock body (1), special bitting hole (16) is worn out in the inside that described sliding tray (21) is manufactured on expansion groove (7), communicates with expansion groove (7), sliding eye (11) and special bitting hole (16), described sliding eye (11) and sliding tray (21) and expand groove (7) and create integrally, be manufactured in the lock core body of front lock core (2), the lock core that described skewed slot (26) is manufactured on special bitting hole (16) part of front lock core (2) is worn out outer round surface and the special bitting hole (16) of front lock core (2), communicate with oblique locked groove (25) and special bitting hole (16), and corresponding with the oblique locked groove (25) on lock core hole, for installing oblique locking device and allowing the parts of oblique locking device operate,

Sliding bar (6) creates cylinder or stairstepping cylinder, and cylinder manufactures thrust hole (24), and the two sides of thrust hole (24) manufactures the pin hole being fixedly connected with pin (22) end;

Shift fork (5) creates Y-shaped fork or V-shaped fork, or create triangle, the upper manufacture of shift fork (5) has pin-and-hole, the pin-and-hole of described Y-shaped fork is manufactured on the shank of shift fork (5), the pin-and-hole of described V-shaped fork is manufactured on the junction of the fork of V-shaped, and described shift fork (5) is that leg-of-mutton pin-and-hole is manufactured on a leg-of-mutton angle;

Connecting pin (22) creates pin, is used for connecting shift fork (5) and sliding bar (6);

Guide springs (10) and top pressure spring (23) create stage clip;

Expanding plate (8) creates spring leaf or flexure strip, or adopts rigid disk and tension spring to carry out being combined into assembly, and tension spring top is pressed between sliding bar (6) and expanding plate (8); The both sides end face of described expanding plate (8) creates the face of lock core (2) and lock body (1) before pintle hook lock, and the fixed end of expanding plate (8) is arranged on the middle part that sliding bar (6) in expansion groove (7) is upper, be fixed on sliding bar (6);

Switch block (29) creates the blocks of bar shaped, and the middle part of blocks manufactures pin-and-hole, and rotational pin (27) is through pin-and-hole; In special bitting hole (16) the same side to key in polylith switch block (29) are installed time, expose the part switch block (29) in special bitting hole (16), one piece of ratio below one piece short before it; Described switch block (29) is arranged in skewed slot (26) untie-sell (27) that can rotate and rotates, and can not rotate in lock core hole for lock core before locking (2);

Rotational pin (27) creates pin or bolt, is fixed in the fixing hole in skewed slot (26), for fixing switch block (29);

Top spring (28) creates stage clip or torsion spring;

During fabrication, the upper manufacture of rear lock core (13) has connecting hole (12) to rear lock core (13); Described connecting hole (12) creates polygon bearing bore or the groove of depression, or the bearing bore of shape of circular arc and line segment composition or groove, be manufactured on the center of rotation position of rear lock core (13), coordinate with the aft section of connector (3), parallel with lock core hole, can be through with the stealthy hole on front lock core (2);

In order to enable special bitting unblank, the shank of the key of special bitting and pushing tow key (17) during fabrication, manufacture as a whole, pushing tow key (17) are created the key not having the oblique flank of tooth of marble lock key by described special bitting; Pushing tow key (17) inserts on the body keyway portion in special bitting hole (16) has at least the middle part of a lateral to manufacture the convex extension having protrusion, manufactures and pushes away terrace (18), push away terrace (18) and hang shift fork (5) for pushing away before convex extension; The part that pushing tow key (17) inserts the key in special bitting hole (16) has at least manufacture on a lateral have rank to push away (19), rank push away (19) for promoting the promote-side of switch block (29); Described rank push away (19) and create pushing tow key (17) and insert the rank that the aft section of the part of the key in special bitting hole (16) is wide, previous section is narrow and formed; The length that described pushing tow key (17) manufactures is longer than the length of special bitting hole (16), and the part that the length of pushing tow key (17) is longer than special bitting hole (16) is used for promoting connector (3) insertion connecting hole (12); Described pushing tow key (17) creates with the shape of special bitting hole (16) same or similar, and special bitting hole (16) creates the hole of single groove or multiple-grooved or multidirectional groove; Described multidirectional groove comprises V-shaped groove, U-lag, two-way chute, three-dimensional groove, cross recess, five to groove, six to groove, seven to groove, eight to groove, plum blossom groove;

Described connector (3) during fabrication, connector (3) is created the cylinder that the shape of anterior, rear portion consistent with the shape in stealthy hole and connecting hole (12) is consistent, the front end of connector (3) is created the shape that can coordinate with the front end of pushing tow key (17), allow pushing tow key (17) that connector (3) can be promoted slide in stealthy hole and in connecting hole (12), when connector (3) slides in stealthy hole, its rear end can be inserted in connecting hole (12), for connecting front lock core (2) and rear lock core (13);

Described spring bearing bore (15) during fabrication, spring bearing bore (15) be manufactured on the bottom of connecting hole (12) and pass connecting hole (12), or spring bearing bore (15) is manufactured on the rearward end of connector (3), or spring bearing bore (15) is manufactured on the rearward end of connector (3) and the bottom of connecting hole (12) simultaneously; Spring bearing bore (15) is created blind hole or bearing bore, for installing return spring (4); Described return spring (4) creates stage clip;

Be provided with front lock core (2) and rear lock core (13) in lock body (1), rear lock core (13) is movably arranged on the rearward end of front lock core (2), disconnects completely with front lock core (2), manufacture in described front lock core (2) and have sliding eye (11), expansion groove (7), sliding tray (21), skewed slot (26), specially bitting hole (16) and stealthy hole, connector (3) is installed in stealthy hole, have connecting hole (12) in described rear lock core (13), the rear end of rear lock core (13) is fixed with and connects tongue (14), and be connected with link gear after connecting the via hole of tongue (14) through lock body (1) rear portion, link gear is connected with dead bolt, guide springs (10) is arranged on sliding eye (11) bottom, sliding bar (6) is had to be installed in expansion groove (7) and sliding eye (11) before guide springs (10), the fixed end of expanding plate (8) is fixed on the sliding bar (6) of the part in expansion groove (7), the expansion end top of expanding plate (8) is pressed on arcwall face in lock groove (9) or inclined-plane, thrust hole (24) place on sliding bar (6) before the fixed end of fixing expanding plate (8) has shift fork (5) to be fixed on sliding bar (6) by connecting pin (22), top pressure spring (23) top is pressed on the fork of the shift fork (5) in sliding tray (21), in described skewed slot (26), oblique locking device is installed.

8. play mechanical anti-theft lock according to claim 1 and additional nothing according to claim 7, it is characterized in that: for the ease of manufacturing and assembling, the manufacture hop count of lock core (2) before changing, the described easily manufactured needs of lock body (1) according to internal construction and the needs of manufacturing process, front lock core (2) segmentation manufacture again near the end or end in stealthy hole, or in the position segmentation manufacture again of expansion groove (7), or in the position segmentation manufacture again of sliding tray (21), or in the position segmentation manufacture again of skewed slot (26), front lock core (2) is created entirety or multistage, the each section of lock core that segmentation manufactures can synchronous rotary or can separately asynchronous rotation,

In order to manufacture the needs with assembly technology, lock body (1), during fabrication according to technological requirement and needs, creates entirety or multistage lock body (1).