CN111794596B

CN111794596B - Anti-theft door lock

Info

Publication number: CN111794596B
Application number: CN202010583307.4A
Authority: CN
Inventors: 焦阳; 姜奇杉; 王浩然
Original assignee: Foshan Hanxu Hardware And Plastic Products Co ltd
Current assignee: Foshan Hanxu Hardware And Plastic Products Co ltd
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2022-05-27
Anticipated expiration: 2040-06-23
Also published as: CN111794596A

Abstract

The invention belongs to the technical field of anti-theft door locks, in particular to an anti-theft door lock; comprises a lock body and a door block; the lock body can be clamped into the door block; the lock body comprises an installation box; the end faces of two sides of the mounting box are fixedly connected with clamping blocks, and the inner walls of the clamping blocks are trapped with bolt grooves; the inner wall of the installation box is connected with a moving block in a sliding mode, and the end faces of two sides of the moving block are in inclined design; the end surface of the left side of the moving block is fixedly connected with evenly arranged lock tongues; the right side of the moving block is connected with extrusion blocks in the inner walls of the two sides of the installation box in a sliding manner, and the opposite side of each extrusion block is designed to be inclined; the anti-theft door lock is mainly used for solving the problems that most of the existing door locks are installed by using bolts, however, the fixing degree between the door lock and a door plate cannot be improved by the method, the bolts deform and even break when lawless persons kick the door, and meanwhile, the door lock can be easily disassembled when the lawless persons use tools, so that the anti-theft effect of the door lock cannot be achieved.

Description

Anti-theft door lock

Technical Field

The invention belongs to the technical field of anti-theft door locks, and particularly relates to an anti-theft door lock.

Background

According to different principles of the lock core, the anti-theft lock can be divided into a spring lock, a blade lock, a magnetic lock, an IC card lock, a fingerprint lock and the like. Tumbler locks and magnetic locks are common. The lock is like a straight-line lock, a cross lock, a computer lock and the like, and belongs to a spring lock; magnetic locks are popular in the first few years, but the two years are rare, the anti-theft door lock can be selected according to the following conditions that firstly, the material of the lock body relates to a lot of professional knowledge and the technology of each manufacturer, the lock rod produced in continental is generally made of iron, steel, stainless steel and zinc alloy, because the process and the cost are limited, the hardness of the lock rod is not enough, the lock rod is often easily cut by locking pliers and hydraulic pliers, and secondly, the lock core is generally bought by people and only looks like the shape, so that the lock has a certain great feeling. As long as everyone notices, no matter which country you buy the lock, the lock core is generally copper, and copper's characteristic is soft partially, uses electric drill, concentrated sour, just can easily destroy copper lock core. The types of the lock cylinders are different, the lock cylinder which is commonly adopted at present is an European-style lock cylinder, in addition, an American-style threaded lock cylinder and a fireproof lock cylinder are also adopted, the safety of the American-style threaded lock cylinder and the fireproof lock cylinder is higher, the American-style threaded lock cylinder is applied to a high-grade door lock, the quality is good, the safety is high, the fireproof lock cylinder is applied to a fireproof door lock, the high-temperature of 975 ℃ can be resisted for 90 minutes, and the lock cylinder belongs to a special door lock cylinder which is forcibly executed by the nation. The keys of the lock are numerous, cross-shaped, round-mouthed, crescent, and the shape, color and color are piled up, the material of many keys is copper or aluminum-iron alloy, and is very easy to be duplicated, the better material at present is steel, and novel electronic key in addition, the security is higher, and about the introduction to the anti-theft door lock, can refer to the periodical: introduction to a new security door lock mechanism, construction machinery, 1991(12), however, there still exist certain problems with current security door locks, including the following aspects:

the anti-theft measures of the anti-theft door lock in the prior art all utilize the complicated mechanism that increases in the door lock to improve the security of door lock, however this kind of mode can improve the security performance of door lock itself, but can not improve the security performance of installation between door lock and the door plant, the present door lock installation mostly utilizes the bolt installation, nevertheless this kind of mode can not improve the fixed degree between door lock and the door plant, when lawless persons are forced to step forward the door, the bolt can take place to warp the problem of even fracture, can dismantle the door lock easily when lawless persons utilize the instrument simultaneously, thereby just can not play the problem of the theftproof effect of door lock.

There are also some solutions related to security door locks in the prior art, such as patent numbers: 201911308293.9 entitled anti-theft door lock, which utilizes a complex mechanism added in the door lock to improve the safety of the door lock, but this way can improve the safety of the door lock itself, but can not improve the safety of the installation between the door lock and the door panel.

In view of the above, in order to overcome the above technical problems, the present inventors have designed and developed a security door lock, and made a special security door lock, so as to solve the above technical problems.

Disclosure of Invention

In order to make up for the defects of the prior art, the anti-theft door lock provided by the invention is mainly used for solving the problems that most of the existing door lock installations are installed by using bolts, however, the fixing degree between the door lock and a door plate cannot be improved by adopting the mode, the bolts can deform and even break when a lawless person steps on the door, and meanwhile, the door lock can be easily disassembled when the lawless person uses a tool, so that the anti-theft effect of the door lock cannot be achieved.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a security door lock, which comprises a lock body and a door block; the lock body can be clamped into the door block; the lock body comprises an installation box; the end faces of two sides of the mounting box are fixedly connected with clamping blocks, and the inner walls of the clamping blocks are trapped with bolt grooves; the inner wall of the installation box is connected with a moving block in a sliding mode, and the end faces of two sides of the moving block are in inclined design; the end surface of the left side of the moving block is fixedly connected with evenly arranged lock tongues; the right side of the moving block is connected with extrusion blocks in the inner walls of the two sides of the installation box in a sliding manner, and the opposite side of each extrusion block is designed to be inclined; the two opposite sides of the extrusion blocks are fixedly connected with first clamping shafts in the inner walls of the extrusion blocks, and the first clamping shafts can extend to the outside; a first clamping groove is formed in the inner wall of the door block at one side of each of the two first clamping shafts, which is opposite to each other, and the first clamping shafts are matched with the first clamping grooves; the right end faces of the two extrusion blocks are fixedly connected with first gear teeth which are uniformly arranged; the end face of the right side of the moving block is fixedly connected with two long rods which are uniformly arranged; second gear teeth which are uniformly arranged are fixedly connected in the inner wall of the long rod at the opposite sides of the two long rods, and the second gear teeth are arranged at the tail ends of the long rods; the left side of the second gear tooth is the safe distance of the long rod; the two long rods are arranged on the opposite sides of the mounting box, and a first gear is rotatably connected in the inner wall of the mounting box through a rotating shaft and is lower than the long rods; the upper surfaces of the two first gears are fixedly connected with second gears, and the second gears are meshed with second gear teeth; the right sides of the two second gears are both connected with a first toothed plate in a sliding manner in the inner wall of the mounting box, and the end surfaces of the two sides of the first toothed plate are fixedly connected with gear teeth; the upper surfaces of the two first gears are fixedly connected with second toothed plates which are uniformly arranged through supporting rods, and the number of the second toothed plates is two; the second toothed plate can be meshed with the first gear teeth; the second toothed plate can be meshed with the first toothed plate; the two sides of the first toothed plates, which are opposite to each other, are fixedly connected with long blocks in the inner walls of the first toothed plates; the two long blocks are provided with long grooves in the inner wall of the door block at the opposite sides, and the long grooves are matched with the long blocks;

when in work, the anti-theft measures of the anti-theft door lock in the prior art are all to improve the safety of the door lock by increasing the complex mechanisms in the door lock, but the mode can improve the safety performance of the door lock, but can not improve the safety performance of installation between the door lock and a door plate, most of the existing door lock installations are installed by using bolts, but the mode can not improve the fixing degree between the door lock and the door plate, when lawless persons rush down the door, the bolts can deform or even break, and simultaneously, when lawless persons use tools, the door lock can be easily disassembled, so that the anti-theft effect of the door lock can not be achieved, the anti-theft door lock manufactured by the invention can directly use the key to drive the bolt to move, the door lock can be fixed and disassembled, and simultaneously, the mechanisms in the door lock can be directly fixed with the door plate, so that the door lock can not be disassembled by using the tools, when the door lock manufactured by the invention needs to be installed, firstly, the door lock is clamped into a door lock groove in a door plate, then a key is inserted into the door lock and drives the spring bolt to move rightwards, when the spring bolt moves, the spring bolt can drive the moving block to move rightwards, the extruding blocks can be extruded towards two sides in the process that the moving block moves rightwards, after the extruding blocks are extruded, a first clamping shaft on the extruding blocks can be clamped into a first clamping groove, the moving block can drive the long rod to move in the moving process, because the second gear teeth on the long rod are meshed with the second gear, the second gear teeth can drive the second gear to rotate in the process that the long rod moves rightwards, because the second gear teeth are meshed with the first gear, the first gear can be driven to rotate, and because the second toothed plates which are uniformly arranged are fixedly connected with the upper surface of the first gear and are meshed with the first toothed plates, when the first gear rotates ninety degrees anticlockwise, the second gear plate above the first gear plate is meshed with the first gear teeth, the extrusion plate can be fixed in the process, so that the first clamping shaft on the extrusion block is prevented from being separated from the first clamping groove, the fixing degree of the door lock and the door block is reduced, meanwhile, the second gear plate below the first gear plate is meshed with the first gear plate, the second gear plate can be prevented from sliding in the process, the fixing degree of the door lock and the door block is reduced, the long blocks are fixedly connected to the opposite sides of the first gear plate, the long blocks are driven to slide into the long grooves in the process that the first gear plate moves towards the two sides, the fixing degree of the door lock and the door block can be further improved in the process, the door lock and the inner part of the door block can be fixed through the mutual matching of various mechanisms in the process, so that an lawless person can be prevented from detaching the door lock by using a tool, and the stability degree and the collision capacity of the door lock can be improved by the mutual matching of various mechanisms at the same time, thereby prevent that lawless persons from making the lock take place not hard up with kick, because all be equipped with the bolt groove in the fixture block inner wall, thereby can also carry out the bolt fastening to the lock, the installation degree of lock can further be improved at this process, and then the security performance of improvement lock, can insert in the first card axle in left side when the bolt changes the door block back, can fix once more first card axle at this in-process, can further improve the fixed degree of lock simultaneously, when needs dismantle the lock, demolish the bolt earlier, it can tear down the lock open to rotate the key simultaneously and drive the spring bolt left and remove.

Preferably, the inner walls of the two long grooves are rotatably connected with a screw rod through a rotating shaft; the outer surfaces of the two lead screws are fixedly connected with a third gear; the upper surfaces of the two first toothed plates are fixedly connected with third toothed plates, and the third toothed plates are meshed with the third gears; the left sides of the two screw rods are provided with screw sleeves, and the screw sleeves are matched with the screw rods; a clamping hole is formed in the first clamping shaft on the right side, and the clamping hole is matched with the screw sleeve;

during operation, because first pinion rack upper surface has linked firmly the third pinion rack, and third pinion rack and third gear intermeshing, the third pinion rack can drive the third gear and rotate when first pinion rack removes to the elongated slot, can drive the lead screw rotation at third gear pivoted in-process, because the lead screw surface has cup jointed the silk braid, can drive the silk braid and remove left at lead screw pivoted in-process, can insert the card downthehole of the first card axle in right side at the in-process that the silk braid removed left, can carry out the secondary fixation to first calorie axle at this in-process, thereby can improve the fixed degree of first calorie axle AND gate piece, and then improve the fixed degree of lock AND gate piece, can improve the anti striking ability of lock at this in-process, thereby can prevent that the lock from receiving to take place not hard up after the striking, thereby reduce the security performance of lock.

Preferably, the right end faces of the two first toothed plates are fixedly connected with an L-shaped plate; the back sides of the two L-shaped plates are respectively provided with a first sliding chute in the inner wall, and the first sliding chutes are mutually matched with the L-shaped plates;

the during operation because first spout all mutually supports with "L" board, can drive "L" board at first pinion rack to the in-process that both sides removed and remove to first spout in, can improve the fastening degree that further improves lock and door block when "L" board removes to first spout in to can increase the anti striking ability and the security performance of lock.

Preferably, the end faces of one sides of the backs of the two L-shaped plates are both designed in an inclined manner; a first sliding block is connected in each of the two first sliding grooves in a sliding mode through a spring, and the end face of the right side of each first sliding block is in an inclined design; the left end faces of the two first sliding blocks are fixedly connected with inserting blocks; slots are formed in the inner walls of the two long blocks, and the slots are matched with the insertion blocks;

the during operation, because "L" board back of the body one side is the slope design, and first slider is the slope design, the in-process that moves to both sides at "L" board can promote the first slider in the first spout and move left, because first slider left side terminal surface has all linked firmly the inserted block, thereby can drive the inserted block and move left, the inserted block all can insert in the slot of seting up in the rectangular piece in this in-process, can fix first pinion rack at this in-process, thereby prevent that first pinion rack from taking place not hard up, make the security performance variation of lock, can also improve the fixed degree of lock AND gate piece simultaneously, thereby further improve the security performance of lock.

Preferably, the right sides of the two first toothed plates are rotatably connected with fourth gears in the inner wall of the installation box through rotating shafts, and the fourth gears are meshed with the first toothed plates; the upper surfaces of the two first gears are fixedly connected with hook-shaped plates through round rods, and the hook-shaped plates are parallel to the first toothed plates in an initial state; a circular groove is formed in the inner wall of the door plate at the right side of the two hook-shaped plates, a stud is fixedly connected in the circular groove, and the stud and the hook-shaped plates are matched with each other;

the during operation because fourth gear and first pinion rack intermeshing can drive the fourth gear at first pinion rack to the in-process that both sides removed and rotate, can drive at fourth gear pivoted in-process and collude the shape board and change over to the circular slot in and block on the stud, can improve the fastening nature of lock and door plant at this in-process to can prevent that lawless persons from pulling out the lock from the door plant, can also further improve the security performance of lock simultaneously.

Preferably, the inner walls of the two hook-shaped plates are fixedly connected with first clamping teeth which are uniformly arranged on the inner surfaces of the hook-shaped plates; the outer surfaces of the two studs are fixedly connected with second clamping teeth which are uniformly arranged, and the second clamping teeth are matched with the first clamping teeth;

during operation, because collude the shaped plate and all link firmly first latch and the second latch of evenly arranging with the stud surface, when colluding the shape integrated circuit board on the stud, the first latch of evenly arranging can mutually support with the second latch, can improve the fixed degree of colluding shaped plate and stud at this in-process to prevent to collude the shaped plate and the fixed unstable emergence of stud and drop, can also further improve the door piece simultaneously and take place to drop to the power of grabbing of lock, thereby prevent that lawless persons from deviating from the lock.

The invention has the following beneficial effects:

1. according to the invention, the screw rod is arranged, the screw rod can be driven to rotate in the rotation process of the third gear, the screw sleeve is sleeved on the outer surface of the screw rod, the screw sleeve can be driven to move leftwards in the rotation process of the screw rod, the screw sleeve can be inserted into the clamping hole of the first clamping shaft on the right side in the leftward movement process of the screw sleeve, and the first clamping shaft can be secondarily fixed in the process, so that the fixing degree of the first clamping shaft and the door block can be improved, the fixing degree of the door lock and the door block can be further improved, the impact resistance of the door lock can be improved in the process, the door lock can be prevented from loosening after being impacted, and the safety performance of the door lock can be reduced.

2. The invention drives the L-shaped plate to move into the first sliding groove in the process that the first toothed plate moves towards two sides by arranging the L-shaped plate, when the L-shaped plate moves into the first sliding groove, the fastening degree of the door lock and the door block can be further improved, so that the impact resistance and the safety performance of the door lock can be improved, the first sliding block in the first sliding groove can be pushed to move leftwards in the process that the L-shaped plate moves towards two sides, because the left end face of the first sliding block is fixedly connected with the insert block, the insert block can be driven to move leftwards, in the process, the insert blocks can be inserted into the slots arranged in the long block, the first toothed plate can be fixed in the process, thereby prevent that first pinion rack from taking place to become flexible, make the security performance variation of lock, can also improve the fixed degree of lock and door piece simultaneously to further improve the security performance of lock.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a body diagram of the present invention;

FIG. 2 is a mating cross-sectional view of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is an enlarged view of a portion of FIG. 2 at B;

FIG. 5 is an enlarged view of a portion of FIG. 2 at C;

in the figure: the mounting box 1, the door block 11, the fixture block 12, the moving block 13, the locking tongue 14, the pressing block 15, the first clamping shaft 16, the first clamping groove 17, the first gear teeth 18, the long rod 2, the second gear teeth 21, the first gear 22, the second gear 23, the first toothed plate 24, the second toothed plate 25, the long block 26, the long groove 27, the lead screw 28, the third gear 29, the third toothed plate 291, the thread bush 292, the clamping hole 293, the "L" plate 294, the first sliding groove 295, the first sliding block 296, the insert block 297, the insert groove 298, the fourth gear 3, the hook plate 31, the stud 32, the first clamping tooth 33 and the second clamping tooth 34.

Detailed Description

A security door lock according to an embodiment of the present invention will be described below with reference to fig. 1 to 5.

As shown in fig. 1-5, the security door lock of the present invention includes a lock body and a door block 11; the lock body can be clamped into the door block 11; the lock body comprises a mounting box 1; the end faces of two sides of the installation box 1 are fixedly connected with the clamping blocks 12, and the inner walls of the clamping blocks 12 are trapped with bolt grooves; a moving block 13 is connected to the inner wall of the installation box 1 in a sliding manner, and the end surfaces of two sides of the moving block 13 are both in an inclined design; the end surface of the left side of the moving block 13 is fixedly connected with evenly arranged lock tongues 14; the right side of the moving block 13 is connected with extrusion blocks 15 in the inner walls of the two sides of the installation box 1 in a sliding manner, and one opposite side of each extrusion block 15 is designed to be inclined; a first clamping shaft 16 is fixedly connected to the inner wall of each extrusion block 15 at the opposite side of each extrusion block 15, and the first clamping shafts 16 can extend to the outside; the two first clamping shafts 16 are provided with first clamping grooves 17 in the inner wall of the door block 11 at the opposite sides, and the first clamping shafts 16 are matched with the first clamping grooves 17; the right end faces of the two extrusion blocks 15 are fixedly connected with first gear teeth 18 which are uniformly arranged; the right side end face of the moving block 13 is fixedly connected with two long rods 2 which are uniformly arranged, and the number of the long rods 2 is two; second gear teeth 21 which are uniformly arranged are fixedly connected in the inner wall of the long rod 2 at the opposite sides of the two long rods 2, and the second gear teeth 21 are arranged at the tail ends of the long rods 2; the left side of the second gear teeth 21 is the safe distance of the long rod 2; the two opposite sides of the long rods 2 are rotatably connected with a first gear 22 in the inner wall of the mounting box 1 through a rotating shaft, and the first gear 22 is lower than the long rods 2; the upper surfaces of the two first gears 22 are fixedly connected with second gears 23, and the second gears 23 are meshed with the second gear teeth 21; the right sides of the two second gears 23 are connected with first toothed plates 24 in the inner wall of the installation box 1 in a sliding manner, and the end surfaces of the two sides of the first toothed plates 24 are fixedly connected with gear teeth; the upper surfaces of the two first gears 22 are fixedly connected with second toothed plates 25 which are uniformly arranged through supporting rods, and the number of the second toothed plates 25 is two; the upper second gear plate 25 can be meshed with the first gear teeth 18; the second toothed plate 25 can be engaged with the first toothed plate 24 below; the two opposite sides of the first toothed plates 24 are fixedly connected with long blocks 26 in the inner walls of the first toothed plates 24; the two opposite sides of the long blocks 26 are provided with long grooves 27 in the inner wall of the door block 11, and the long grooves 27 are matched with the long blocks 26;

when the anti-theft door lock works, the anti-theft measures of the anti-theft door lock in the prior art are that the complex mechanisms in the door lock are added to improve the safety of the door lock, but the safety performance of the installation between the door lock and a door plate can not be improved, most of the existing door lock installations are installed by bolts, but the fixing degree between the door lock and the door plate can not be improved by the mode, when lawless persons rush to the door, the bolts can deform and even break, and meanwhile, when lawless persons utilize tools, the door lock can be easily disassembled, so that the anti-theft effect of the door lock can not be achieved, the anti-theft door lock manufactured by the invention can directly utilize the key to drive the bolt 14 to move, the door lock can be fixed and disassembled, and meanwhile, the mechanisms in the door lock can be directly fixed with the door plate, so that the door lock can not be disassembled by the tools, when the door lock manufactured by the invention needs to be installed, firstly, the door lock is clamped into a door lock groove in a door plate, then a key is inserted into the door lock and drives the bolt 14 to move rightwards, when the bolt 14 moves, the bolt 14 can drive the moving block 13 to move rightwards, the pressing block 15 can be extruded towards two sides in the process that the moving block 13 moves rightwards, after the pressing block 15 is extruded, the first clamping shaft 16 on the pressing block 15 can be clamped into the first clamping groove 17, the long rod 2 can be driven to move in the process that the moving block 13 moves, because the second gear teeth 21 on the long rod 2 are meshed with the second gear wheel 23, the second gear teeth 21 can drive the second gear wheel 23 to rotate in the process that the long rod 2 moves rightwards, because the second gear wheel 23 is meshed with the first gear wheel 22, the first gear wheel 24 can be driven to move towards two sides in the process that the first gear wheel 22 rotates, meanwhile, as the second toothed plates 25 which are uniformly arranged are fixedly connected to the upper surface of the first gear 22 and are meshed with the first gear teeth 18 and the first toothed plates 24, when the first gear 22 rotates ninety degrees anticlockwise, the second toothed plates 25 above are meshed with the first gear teeth 18, the extrusion plate can be fixed in the process, so that the first clamping shafts 16 on the extrusion block 15 are prevented from being separated from the first clamping grooves 17, the fixing degree of the door lock and the door block 11 is reduced, meanwhile, the second toothed plates 25 below are meshed with the first toothed plates 24, the second toothed plates 25 can be prevented from sliding in the process, the fixing degree of the door lock and the door block 11 is reduced, as the long blocks 26 are fixedly connected to the opposite sides of the first toothed plates 24, the long blocks 26 can be driven to slide into the long grooves 27 in the process that the first toothed plates 24 move towards the two sides, the fixing degree of the door lock and the door block 11 can be further improved in the process, the door lock can be fixed with the inside of the door block 11 through the mutual matching of various mechanisms in the process, thereby preventing lawless persons from utilizing tools to disassemble the door lock, simultaneously improving the stability and the crashing capability of the door lock by utilizing the mutual cooperation of various mechanisms, preventing the lawless persons from kicking the door to loosen the door lock, because the inner walls of the clamping blocks 12 are all provided with bolt grooves, the door lock can be fixed by bolts, in the process, the installation degree of the door lock can be further improved, the safety performance of the door lock is further improved, when the bolt rotating door block 11 is inserted into the left first clamping shaft 16, in the process, the first clamping shaft 16 can be fixed again, and the fixing degree of the door lock can be further improved, when the door lock needs to be disassembled, the bolt is firstly disassembled, and meanwhile, the key is rotated to drive the bolt 14 to move leftwards, so that the door lock can be disassembled.

As an embodiment of the present invention, a screw 28 is rotatably connected to the inner walls of the two long grooves 27 through a rotating shaft; the outer surfaces of the two lead screws 28 are fixedly connected with third gears 29; the upper surfaces of the two first toothed plates 24 are fixedly connected with third toothed plates 291, and the third toothed plates 291 are meshed with the third gear 29; the left sides of the two lead screws 28 are provided with screw sleeves 292, and the screw sleeves 292 are matched with the lead screws 28; a clamping hole 293 is formed in the first clamping shaft 16 on the right side, and the clamping hole 293 is matched with the thread sleeve 292;

when in work, as the third toothed plate 291 is fixedly connected to the upper surface of the first toothed plate 24, and the third toothed plate 291 is meshed with the third gear 29, when the first tooth plate 24 moves into the elongated slot 27, the third tooth plate 291 will rotate the third gear 29, the screw 28 can be driven to rotate in the process of rotating the third gear 29, and as the outer surface of the screw 28 is sleeved with the screw sleeve 292, the screw sleeve 292 is driven to move leftwards during the rotation of the screw 28, and can be inserted into the clamping hole 293 of the right first clamping shaft 16 during the leftward movement of the screw sleeve 292, in the process, the first clamping shaft 16 can be fixed for the second time, so that the fixing degree of the first clamping shaft 16 and the door block 11 can be improved, the fixing degree of the door lock and the door block 11 can be improved, the anti striking ability of lock can be improved at this in-process to can prevent that the lock from receiving to take place to become flexible after the striking, thereby reduce the security performance of lock.

As an embodiment of the present invention, two right end faces of the first tooth plates 24 are fixedly connected to an "L" plate 294; the inner walls of the two L-shaped plates 294 on the opposite sides are respectively provided with a first sliding groove 295, and the first sliding grooves 295 are mutually matched with the L-shaped plates 294;

in operation, because the first runner 295 all mutually supports with "L" board 294, can drive "L" board 294 and move to in the first runner 295 in the process that first pinion rack 24 moved to both sides, can improve when "L" board 294 moves to in the first runner 295 and further improve the fastening degree of lock and door block 11 to can increase the crashproof ability and the security performance of lock.

As an embodiment of the present invention, the end surfaces of the two "L" plates 294, which are opposite to each other, are both designed to be inclined; a first sliding block 296 is connected in the two first sliding grooves 295 in a sliding manner through a spring, and the end face of the right side of the first sliding block 296 is designed to be inclined; the left end faces of the two first sliding blocks 296 are fixedly connected with plug blocks 297; slots 298 are formed in the inner walls of the two long blocks 26, and the slots 298 are matched with the insertion blocks 297;

during operation, because "L" board 294 design for the slope on the opposite side, and first slider 296 is the slope design, first slider 296 in can promoting first spout 295 to move left at the in-process that "L" board 294 moved to both sides, because first slider 296 left side terminal surface has all linked firmly the inserted block 297, thereby can drive the inserted block 297 and move left, the inserted block 297 all can insert the slot 298 of seting up in the long block 26 at this in-process, can fix first pinion rack 24 at this in-process, thereby prevent that first pinion rack 24 from taking place to become flexible, make the security performance variation of lock, can also improve the fixed degree of lock AND gate piece 11 simultaneously, thereby further improve the security performance of lock.

As an embodiment of the present invention, the right sides of the two first toothed plates 24 are rotatably connected with fourth gears 3 in the inner wall of the installation box 1 through rotating shafts, and the fourth gears 3 are meshed with the first toothed plates 24; the upper surfaces of the two first gears 22 are fixedly connected with hook-shaped plates 31 through round rods, and the hook-shaped plates 31 are parallel to the first toothed plates 24 in an initial state; a circular groove is formed in the inner wall of the door plate at the right side of the two hook-shaped plates 31, a stud 32 is fixedly connected in the circular groove, and the stud 32 is matched with the hook-shaped plates 31;

the during operation, because fourth gear 3 and first pinion rack 24 intermeshing can drive fourth gear 3 at first pinion rack 24 to the in-process that both sides removed and rotate, can drive at fourth gear 3 pivoted in-process and collude shaped plate 31 and change over to the circular slot and block on stud 32, can improve the fastening nature of lock and door plant at this in-process to can prevent that lawless persons from pulling out the lock from the door plant, can also further improve the security performance of lock simultaneously.

As an embodiment of the present invention, the inner walls of the two hook-shaped plates 31 are fixedly connected with first latch teeth 33 uniformly arranged on the inner surfaces of the hook-shaped plates 31; the outer surfaces of the two studs 32 are fixedly connected with second latch teeth 34 which are uniformly arranged, and the second latch teeth 34 are matched with the first latch teeth 33;

the during operation, because collude shaped plate 31 and the surface of stud 32 and all linked firmly first latch 33 and the second latch 34 of evenly arranging, when colluding shaped plate 31 card on stud 32, the first latch 33 of evenly arranging can mutually support with second latch 34, can improve collude shaped plate 31 and the fixed degree of stud 32 at this in-process, thereby prevent to collude shaped plate 31 and the fixed insecure emergence of stud 32 and drop, can also further improve the door piece 11 simultaneously and to the power of grabbing of lock, thereby prevent that lawless persons from deviating from the lock.

The specific working process is as follows:

when the door lock manufactured by the invention is needed to be installed, firstly, the door lock is clamped into a door lock groove in a door plate, then a key is inserted into the door lock and drives the bolt 14 to move rightwards, when the bolt 14 moves, the bolt 14 drives the moving block 13 to move rightwards, the extruding blocks 15 are extruded towards two sides in the process that the moving block 13 moves rightwards, after the extruding blocks 15 are extruded, the first clamping shaft 16 on the extruding blocks 15 is clamped into the first clamping groove 17, the long rod 2 is driven to move in the process that the moving block 13 moves, because the second gear teeth 21 on the long rod 2 are meshed with the second gear 23, the second gear teeth 21 can drive the second gear 23 to rotate in the process that the long rod 2 moves rightwards, because the second gear 23 is meshed with the first gear 22, the first gear 22 can be driven to rotate, and the first toothed plate 24 can be driven to move towards two sides in the process that the first gear 22 rotates, meanwhile, as the second toothed plates 25 which are uniformly arranged are fixedly connected to the upper surface of the first gear 22 and are meshed with the first gear teeth 18 and the first toothed plates 24, when the first gear 22 rotates ninety degrees anticlockwise, the second toothed plates 25 above are meshed with the first gear teeth 18, and the second toothed plates 25 below are meshed with the first toothed plates 24, and as the long blocks 26 are fixedly connected to the opposite sides of the first toothed plates 24, the long blocks 26 are driven to slide into the long grooves 27 in the process that the first toothed plates 24 move towards two sides, the door lock block 11 can be fixed through the mutual matching of various mechanisms in the process, so that the door lock can be prevented from being disassembled by using tools by lawbreakers, meanwhile, the stability and the impact capability of the door lock can be improved by the mutual matching of various mechanisms, so that the door lock is prevented from being loosened by stepping the lawbreakers, and bolt grooves are formed in the inner walls of the fixture blocks 12, thereby can also carry out the bolt fastening to the lock, the installation degree of lock can further be improved at this process, and then improve the security performance of lock, can insert in the first card axle 16 in left side after in the bolt revolving door piece 11, can fix once more first card axle 16 at this in-process, the fixed degree of lock can also further be improved simultaneously, when needs dismantle the lock, demolish the bolt earlier, it can tear down the lock to rotate the key simultaneously and drive spring bolt 14 and remove left.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A kind of theft-proof door lock, characterized by: comprises a lock body and a door block (11); the lock body can be clamped into the door block (11); the lock body comprises a mounting box (1); the end faces of two sides of the mounting box (1) are fixedly connected with clamping blocks (12), and bolt grooves are reserved in the inner walls of the clamping blocks (12); a moving block (13) is connected to the inner wall of the installation box (1) in a sliding mode, and the end faces of the two sides of the moving block (13) are all in an inclined design; the end surface of the left side of the moving block (13) is fixedly connected with evenly arranged lock tongues (14); the right side of the moving block (13) is connected with an extrusion block (15) in the inner walls of the two sides of the installation box (1) in a sliding manner, and one side, opposite to the extrusion block (15), of the extrusion block is designed to be inclined; the two opposite sides of the extrusion blocks (15) are fixedly connected with first clamping shafts (16) in the inner walls of the extrusion blocks (15), and the first clamping shafts (16) can extend to the outside; first clamping grooves (17) are formed in the inner walls of the door blocks (11) on the opposite sides of the two first clamping shafts (16), and the first clamping shafts (16) are matched with the first clamping grooves (17); the right end faces of the two extrusion blocks (15) are fixedly connected with first gear teeth (18) which are uniformly arranged; the right side end face of the moving block (13) is fixedly connected with two long rods (2) which are uniformly arranged, and the number of the long rods (2) is two; second gear teeth (21) which are uniformly arranged are fixedly connected in the inner wall of the long rod (2) at the opposite sides of the two long rods (2), and the second gear teeth (21) are arranged at the tail ends of the long rods (2); the left side of the second gear teeth (21) is the safe distance of the long rod (2); the two long rods (2) are connected with a first gear (22) in the inner wall of the installation box (1) through rotating shafts at the opposite sides, and the first gear (22) is lower than the long rods (2); the upper surfaces of the two first gears (22) are fixedly connected with second gears (23), and the second gears (23) are meshed with second gear teeth (21); the right sides of the two second gears (23) are connected with first toothed plates (24) in the inner wall of the installation box (1) in a sliding mode, and the end faces of the two sides of each first toothed plate (24) are fixedly connected with gear teeth; the upper surfaces of the two first gears (22) are fixedly connected with second toothed plates (25) which are uniformly arranged through supporting rods, and the number of the second toothed plates (25) is two; the second toothed plate (25) can be meshed with the first gear teeth (18); the second toothed plate (25) can be meshed with the first toothed plate (24) below; the two first toothed plates (24) are fixedly connected with long blocks (26) in the inner walls of the first toothed plates (24) at the opposite sides; two long blocks (26) back to back are provided with long grooves (27) in the inner wall of the door block (11), and the long grooves (27) are matched with the long blocks (26).

2. A security door lock according to claim 1, wherein: the inner walls of the two long grooves (27) are rotatably connected with lead screws (28) through rotating shafts; the outer surfaces of the two lead screws (28) are fixedly connected with a third gear (29); the upper surfaces of the two first toothed plates (24) are fixedly connected with third toothed plates (291), and the third toothed plates (291) are meshed with a third gear (29); the left sides of the two lead screws (28) are provided with screw sleeves (292), and the screw sleeves (292) are matched with the lead screws (28); a clamping hole (293) is formed in the inner portion of the first clamping shaft (16) on the right side, and the clamping hole (293) is matched with the thread sleeve (292).

3. The security door lock of claim 2, wherein: the right end faces of the two first toothed plates (24) are fixedly connected with an L-shaped plate (294); two mutually supporting of first spout (295) have all been seted up in the inner wall to one side that the back of body is carried on to "L" board (294), and first spout (295) and "L" board (294).

4. A security door lock according to claim 3, wherein: the end surfaces of the two L-shaped plates (294) on the opposite sides are designed in an inclined manner; a first sliding block (296) is connected in each of the two first sliding grooves (295) in a sliding manner through a spring, and the end face of the right side of each first sliding block (296) is designed in an inclined manner; the left end faces of the two first sliding blocks (296) are fixedly connected with inserting blocks (297); slots (298) are formed in the inner walls of the two long blocks (26), and the slots (298) are matched with the insertion blocks (297).

5. A security door lock according to claim 1, wherein: the right sides of the two first toothed plates (24) are rotatably connected with fourth gears (3) in the inner wall of the installation box (1) through rotating shafts, and the fourth gears (3) are meshed with the first toothed plates (24); the upper surfaces of the two first gears (22) are fixedly connected with hook-shaped plates (31) through round rods, and the hook-shaped plates (31) are parallel to the first toothed plates (24) in an initial state; two collude shaped plate (31) right side and seted up the circular slot in the door plant inner wall, and the circular slot links firmly stud (32), and stud (32) and collude shaped plate (31) and mutually support.

6. A security door lock according to claim 5, wherein: first clamping teeth (33) which are uniformly arranged are fixedly connected to the inner surfaces of the hook-shaped plates (31) in the inner walls of the two hook-shaped plates (31); the outer surfaces of the two studs (32) are fixedly connected with second latch teeth (34) which are uniformly arranged, and the second latch teeth (34) are matched with the first latch teeth (33).