CN111350418B

CN111350418B - Security door lock

Info

Publication number: CN111350418B
Application number: CN202010154175.3A
Authority: CN
Inventors: 张云鹏; 唐杰
Original assignee: Weinan Jindun Guard Co ltd
Current assignee: Weinan Jindun guard Co.,Ltd.
Priority date: 2020-03-07
Filing date: 2020-03-07
Publication date: 2021-10-12
Anticipated expiration: 2040-03-07
Also published as: CN111350418A

Abstract

The invention belongs to the technical field of door locks, and particularly relates to a security door lock which comprises a lock shell, a rotating column and a password button, wherein the lock shell is provided with a lock hole; a core column is fixedly connected to the front end face of the lock shell at a position close to the lower right corner of the lock shell; the front end surface of the core column is rotatably connected with a rotating column at the axis position of the core column; the front end surface of the rotating column is provided with a jack; a key is inserted into the jack; through holes which are uniformly distributed are formed in the outer arc surface of the rotating column at the position right above the rotating column; sliding holes are formed in the inner arc surface of the core column at the positions of the through holes; the inner parts of the sliding holes are vertically and slidably connected with first sliding columns; the inner parts of the through holes are connected with second sliding columns in a sliding mode; the front end surface of the lock shell is provided with password buttons which are uniformly arranged at the right upper position of the core column; the door lock provided by the invention effectively prevents the cost of breaking and dismantling the door lock, has the advantages of simple structure, higher practicability, no need of electric power, wide application range and suitability for requirements of different environments.

Description

Security door lock

Technical Field

The invention belongs to the technical field of door locks, and particularly relates to a security door lock.

Background

A door lock is a device used to lock a door to prevent others from opening the door, and may be mechanical or electrical, requiring electrical power.

The door locks are classified a lot, the requirements on the door locks are different in each occasion, and the anti-theft door lock is generally used in ordinary families, so that the safety is high and the price is low; in some high-end places and security institutions, coded locks and fingerprint locks are used, so that the safety is high and the price is high; glass doors are used in many public places, so that the glass door lock is widely used.

In the prior art, the intelligent security door lock industry is not very standard, and the problem is a lot, because electronic door lock, when meetting the power failure or lack of electricity condition, this kind of electronic security door lock can't play a role, seriously influences the normal business turn over of user, and the security door lock of single special key class, the key easily loses, and the user does not have two kinds of schemes of unblanking, can only break and tear open, and the key is easy to be stolen also easily by the imitation simultaneously, factor of safety lower scheduling problem.

In view of this, in order to overcome the above technical problems, the present company has designed and developed a security door lock, which solves the above technical problems.

Disclosure of Invention

The invention provides a security door lock, which aims to make up the defects of the prior art and solve the problems that the industry of an intelligent security door lock is not very standard and has a lot of problems, because of an electronic door lock, when power failure or power shortage occurs, the electronic security door lock cannot play a role, the normal access of a user is seriously influenced, a single special key is used for the security door lock, the key is easy to lose, the user has no two unlocking schemes and can only break and dismantle, meanwhile, the key is easy to steal and is easy to imitate, the safety coefficient is lower, and the like.

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 shell, a rotating column and a password button, wherein the rotating column is arranged on the lock shell; the lock shell is designed to be of a cuboid structure; a core column is fixedly connected to the front end face of the lock shell at a position close to the lower left corner of the lock shell; the front end surface of the core column is provided with a rotating hole at the axis position of the core column; the inner part of the rotating hole is rotatably connected with a rotating column; the front end face of the rotating column is provided with an insertion hole at the axis position of the rotating column; a key is inserted into the jack; through holes are uniformly distributed on the outer arc surface of the rotating column at the position right above the rotating column, and the through holes are distributed in a straight line in the front-back direction; sliding holes are formed in the inner arc surface of the core column at the positions of the through holes; the inner parts of the sliding holes are vertically and slidably connected with first sliding columns; a first spring is connected between the upper surface of the first sliding column and the upper surface of the corresponding sliding hole; the inner parts of the through holes are connected with second sliding columns in a sliding mode; the front end face of the lock shell is provided with uniformly arranged password holes at the right upper position of the core column, and the password holes are distributed in a straight line from left to right; password buttons are connected inside the password holes in a front-back sliding manner; a second spring is connected between the password button and the front end face of the lock shell; connecting holes are formed in the lock shell in the left-right direction of the positions of the password holes and communicate the password holes; guide posts are connected inside the password holes in a sliding mode, and the guide posts are connected with the corresponding password buttons; guide holes are formed in the surfaces of the guide pillars; in an initial state, the guide holes of any five guide pillars are positioned close to the connecting hole, and the guide holes of the rest guide pillars are positioned at the connecting hole; an air inlet is formed in the right side of the connecting hole; the left side position of the connecting hole is provided with an air outlet; a first telescopic rod is arranged at the right side position of the rightmost sliding hole and communicated with the air outlet hole; the lower end face of the first telescopic rod is fixedly connected with a first sliding block, and a third spring is arranged above the first sliding block; the first sliding block is fixedly connected with a first clamping joint relative to one side surface of the first sliding column; the first sliding column is provided with a second telescopic rod at a first clamping position; a piston rod of the second telescopic rod is fixedly connected with a second clamp; a pneumatic button is arranged on the front end face of the lock shell and close to the lower surface of the lock shell, the pneumatic button can compress gas and guide the gas into the gas inlet hole, and the pneumatic lock shell works; when the security door lock is used, a key is required to be carried with a user, the corresponding security door lock is unlocked by a special key, along with the development of modern science and technology, electronic products are increasingly popularized, so that the intelligent security door lock is widely popularized and marketed, generally, various security forms are combined for use, including passwords, fingerprints, induction, electromagnetism and the like, and multiple insurance is realized, it is noted that the existing password lock industry is not very standard, a plurality of brands or miscellaneous brands do not have corresponding technologies, the produced lock is probably not a truly intelligent password lock, and a lot of problems exist, because of the electronic door lock, when power failure or power shortage occurs, the electronic security door lock cannot play a role, the normal access of the user is seriously influenced, the single security door lock of the special key type is easy to lose, the user has no two unlocking schemes and can only be broken, meanwhile, the key is easy to steal and easy to imitate, the safety coefficient is low, therefore, through the special security door lock, when needing to be opened, firstly, the special key is inserted into the jack of the rotating column, the special structure of the key can jack up the second sliding column in the through hole by different distances, the second sliding column further drives the first sliding column to move upwards in the sliding hole, and because the length of the second sliding column is matched with that of the key, the upper surface of the second sliding column can be just jacked to the outer arc surface position of the rotating column by the key, and the first sliding column is just separated from the through hole; then according to the set password, the password buttons are pressed downwards in sequence, the password buttons further drive the guide pillars to move downwards, guide holes are formed in the positions above the connecting holes on the surfaces of the guide pillars corresponding to the pressed password buttons, the guide pillars move downwards to enable the guide holes to move to the connecting hole positions, the guide holes of other guide pillars are matched to be located at the connecting hole positions, complete conduction of the connecting holes can be achieved, then the pneumatic buttons are pressed to enable the pneumatic buttons to compress air, the compressed air can enter the first telescopic rod through the connecting holes, the piston rod of the first telescopic rod extends out to further drive the first sliding block to move downwards, finally the first clamping joint on the surface of the first sliding block and the second clamping joint on the first sliding column are clamped, then the third spring is pulled back to enable the first sliding column to move upwards to leave the corresponding through holes, the corresponding first sliding columns in all the through holes are separated, and at the moment, the rotating key can enable the rotating column to rotate, the rotating column can further drive the security door lock to be locked or unlocked; the security door lock effectively solves the problems that the industry of intelligent security door locks is not very standard and has a lot of problems in the prior art, because the electronic door lock is adopted, the electronic security door lock can not play a role when power failure or power shortage occurs, the normal entrance and exit of a user are seriously influenced, and the single special key is easy to lose, the user has no two unlocking schemes and can only break the lock, meanwhile, the key is easy to steal and counterfeit, the safety factor is lower, and the like, thereby further improving the safety factor of the security door lock, avoiding the problem of key imitation, meanwhile, the key can be replaced by the password through the arrangement structure, the problems of key loss or imitation and the like are avoided, the broken-in cost of the door lock is prevented, the structure is simple, the practicability is high, electric power is not needed, the application range is wide, and the door lock is suitable for requirements of different environments.

Preferably, the guide posts and the corresponding code buttons are in threaded connection; different guide posts and password buttons can be exchanged at will, and the password button works; because operation requirement, we can often need to change the password, because non-electronic lock, when consequently setting up the password, need adjust mechanical structure, for more quick convenient change password, consequently through with threaded connection between guide pillar and the password button, twist soon through the manual work simply, change wantonly, can be in order to realize the quick adjustment of password, simple structure, the password change demand that satisfies the user that can be very big.

Preferably, the left positions of the sliding holes except the rightmost side are provided with second telescopic rods; the lower end surfaces of the second telescopic rods are fixedly connected with second sliding blocks, and fourth springs are arranged above the second sliding blocks; the side surfaces of the second sliding blocks, corresponding to one side of the first sliding column, are fixedly connected with third clamping joints; a third telescopic rod is arranged at the corresponding third clamping position of the first sliding column; a piston rod of the third telescopic rod is fixedly connected with a fourth clamping joint; a row of module buttons are correspondingly arranged on the front end surface of the lock shell below the password buttons; a switching button is arranged at the left side position of the password button and the module button, and the switching button works; when running into the key and losing the problem, because there is quick second scheme of unblanking in order to have, avoid losing because of the key, the problem of can't unblanking totally, at last have to open through breaking the mode of tearing open, cause the loss of property problem, consequently through setting up switching button, can switch over the air supply direction, realize the key and lose the mode, then press the corresponding password of module button, realize the same theory of operation that switches on with the password button, and then press pneumatic button, can be with compressed gas leading-in to the second telescopic link in, can drive the second slider lapse through the second telescopic link, then the second slider can drive third joint and fourth joint block, through fourth spring pulling force, can drive first traveller and break away from the through-hole, realize the effect the same with the key, the problem of losing of key has been solved, two kinds of schemes of unblanking of giving.

Preferably, a reset button is arranged on the front end face of the lock shell and on the right side of the pneumatic button, can reduce air pressure, is communicated with the first telescopic rod, the second telescopic rod and the third telescopic rod, and works; because first joint and second joint block, third joint and fourth joint block, therefore during the use, be difficult to reset, bring inconvenience for the secondary use, in order to solve this problem, consequently through setting up the reset button, can make first telescopic link through pressing down the reset button, the piston rod of second telescopic link and third telescopic link all pulls back, realize the quickly separating of first card machine and second joint, the quickly separating of third joint and fourth joint, consequently, the quick reset of mechanism can be realized to the reset button, be convenient for quick locking.

Preferably, a fourth telescopic rod is arranged at the bottom of the jack, and in the module button starting module, the fourth telescopic rod is communicated with the pneumatic button and the reset button, so that the module button starting module works; when meetting that the key card is dead to be drawn, or the key during the internal fracture problem of jack, often the key is difficult to take out, brings serious interference for normal unblanking and shutting the lock, leads to the problem of scrapping of security protection lock even, consequently through setting up the fourth telescopic link, can make the piston rod of fourth telescopic link ejecting through pneumatic button, and then can outwards ejecting to the key, has solved the key and has not pulled the handle when the internal fracture of jack, and the practicality is high.

Preferably, a knob is arranged on the left side of the pneumatic button on the front end face of the lock shell, can compress gas and is communicated with the pneumatic button, and when the lock shell works; when the key is stuck or broken in the jack, the key is difficult to be simply pulled out manually or ejected out by direct manual pressing, so that the fourth telescopic rod can be ejected out slowly and powerfully by arranging the knob and continuously compressing gas through rotation of the knob, and the ejection force of the key in the jack is improved.

The invention has the following beneficial effects:

1. the invention relates to a security door lock, which is characterized in that a lock shell, a rotating column and a password button are arranged, a core column is fixedly connected at the position, close to the lower right corner of the lock shell, of the front end surface of the lock shell, a rotating hole is formed in the position, close to the axis of the core column, of the front end surface of the lock shell, the rotating column is rotatably connected inside the rotating hole, an inserting hole is formed in the position, close to the axis of the rotating column, of the front end surface of the core column, a key is inserted inside the inserting hole, through holes are uniformly formed in the positions, right above the rotating column, of the outer arc surface of the rotating column and in the front-back direction of the rotating column in a straight line shape, sliding holes are formed in the positions, through holes, of the inner arc surface of the core column, first sliding columns are vertically and slidably connected inside the sliding holes, first springs are respectively connected between the upper surfaces of the first sliding columns and the upper surfaces of the corresponding sliding holes, second sliding columns are slidably connected inside the through holes, password holes are uniformly formed in the position, right upper positions, of the position, of the front end surface of the lock shell, evenly arranged password holes are formed in the right upper part of the core column, the security door lock effectively solves the problems that the industry of intelligent security door locks is not very standard and has a lot of problems because the electronic door locks cannot play a role when power failure or power shortage occurs, the normal in-and-out of users is seriously influenced, and the security door locks with single special keys are easy to lose keys, the users have no two unlocking schemes and can only break the keys, meanwhile, the keys are easy to copy due to theft, the safety coefficient is lower, and the like, thereby further improving the safety coefficient of the security door lock, avoiding the problem of key copying, simultaneously replacing the keys by the passwords through setting a structure, avoiding the problems of key loss or copying and the like, and preventing the cost of breaking the door lock, the structure is simple, the practicability is high, electric power is not needed, the application range is wide, and the device is suitable for requirements of different environments.

2. The invention relates to a security door lock, which is characterized in that a reset button, a fourth telescopic rod and a knob are arranged, the reset button is arranged at the right side position of a pneumatic button through the front end surface of a lock shell, can reduce air pressure and is communicated with a first telescopic rod, a second telescopic rod and a third telescopic rod, the fourth telescopic rod is arranged at the hole bottom position of a jack, the fourth telescopic rod, the pneumatic button and the reset button are communicated in a module button starting module, the knob is arranged at the left side position of the pneumatic button on the front end surface of the lock shell, can compress air and is communicated with the pneumatic button, and through the arrangement of the reset button, piston rods of the first telescopic rod, the second telescopic rod and the third telescopic rod can be pulled back through pressing the reset button, so that the quick separation of a first clamping machine and a second clamping machine and the quick separation of a third clamping machine and a fourth clamping machine can be realized, the locking is convenient and fast; by arranging the fourth telescopic rod, a piston rod of the fourth telescopic rod can be ejected out through the pneumatic button, so that a key can be ejected out; through the arrangement of the knob, gas can be continuously compressed through the rotation of the knob, the fourth telescopic rod is ejected slowly and forcefully, and the ejection force of a key in the jack is improved.

Drawings

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

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;

FIG. 4 is a cross-sectional view taken at B-B of FIG. 2;

FIG. 5 is an enlarged partial view at C of FIG. 3;

FIG. 6 is an enlarged partial view at D of FIG. 4;

in the figure: the lock comprises a lock shell 1, a core column 11, a first sliding column 12, a first spring 13, a first sliding block 14, a third spring 15, a second sliding block 16, a fourth spring 17, a rotating column 2, a key 21, a second sliding column 22, a cipher button 3, a second spring 31, a guide column 32, a pneumatic button 33, a module button 34, a switching button 35, a reset button 36 and a knob 37.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 6, the security door lock of the present invention comprises a lock case 1, a rotary column 2 and a password button 3; the lock shell 1 is designed to be of a cuboid structure; a core column 11 is fixedly connected to the front end surface of the lock shell 1 near the left lower corner of the lock shell 1; the front end surface of the core column 11 is provided with a rotating hole at the axis position of the core column 11; the inside of the rotating hole is rotatably connected with a rotating column 2; the front end face of the rotating column 2 is provided with an insertion hole at the axis position of the rotating column 2; a key 21 is inserted into the jack; the outer arc surface of the rotating column 2 is provided with through holes which are uniformly distributed at the position right above the rotating column 2, and the through holes are distributed in a straight line in the front-back direction; sliding holes are formed in the inner arc surface of the core column 11 at the positions of the through holes; the inner parts of the sliding holes are vertically and slidably connected with first sliding columns 12; a first spring 13 is connected between the upper surface of the first sliding column 12 and the upper surface of the corresponding sliding hole; the inner parts of the through holes are all connected with second sliding columns 22 in a sliding manner; the front end face of the lock shell 1 is provided with uniformly arranged code holes at the right upper position of the core column 11, and the code holes are distributed in a straight line from left to right; password buttons 3 are connected inside the password holes in a front-back sliding manner; a second spring 31 is connected between the password button 3 and the front end face of the lock shell 1; connecting holes are formed in the lock shell 1 in the left-right direction of the positions of the password holes and communicate the password holes; the inside of the password hole is connected with a guide post 32 in a sliding way, and the guide post 32 is connected with the corresponding password button 3; a guide hole is formed in the surface of the guide pillar 32; in the initial state, the guide holes of any five of the guide pillars 32 are located near the connecting hole, and the guide holes of the rest guide pillars 32 are located at the connecting hole; an air inlet is formed in the right side of the connecting hole; the left side position of the connecting hole is provided with an air outlet; a first telescopic rod is arranged at the right side position of the rightmost sliding hole and communicated with the air outlet hole; the lower end face of the first telescopic rod is fixedly connected with a first sliding block 14, and a third spring 15 is arranged above the first sliding block 14; the side surface of the first sliding block 14, which is opposite to one side of the first sliding column 12, is fixedly connected with a first clamping joint; a second telescopic rod is arranged at the first clamping position of the first sliding column 12; a piston rod of the second telescopic rod is fixedly connected with a second clamp; a pneumatic button 33 is arranged on the front end surface of the lock shell 1 and close to the lower surface of the lock shell 1, the pneumatic button 33 can compress air and guide the air into an air inlet hole, and the air-compressing type air-compressing lock works; when the security door lock is used, the key 21 needs to be carried with the user, the corresponding security door lock is opened by the special key 21, along with the development of modern science and technology, electronic products are increasingly popularized, so that the intelligent security door lock is widely popularized and marketed, generally, a plurality of security forms are combined for use, including passwords, fingerprints, induction, electromagnetism and the like, and a plurality of insurance functions are realized, it is noted that the existing password lock industry is not very standard, a plurality of brands or miscellaneous brands do not have corresponding technologies, the produced lockset may not be the truly intelligent password lock, the problems are many, because of the electronic door lock, when power failure or power shortage occurs, the electronic security door lock cannot play a role, the normal access of the user is seriously influenced, the single special key 21 security door lock is easy to lose, and the user has no two unlocking schemes, only broken disassembly can be carried out, meanwhile, the key 21 is easy to steal and also easy to imitate, the safety factor is low, therefore, through the special security door lock, when the door lock needs to be opened, firstly, the special key 21 is inserted into the jack of the rotating column 2, the special structure of the key 21 can jack up the second sliding column 22 in the through hole by different distances, the second sliding column 22 further drives the first sliding column 12 to move upwards in the sliding hole, and because the length of the second sliding column 22 is matched with that of the key 21, the upper surface of the second sliding column 22 can be just jacked to the extrados position of the rotating column 2 by the key 21, and the first sliding column 12 is just separated from the through hole; then according to the set password, the password button 3 is pressed downwards in sequence, the password button 3 further drives the guide post 32 to move downwards, as the guide hole is arranged on the upper position of the connecting hole on the surface of the guide post 32 corresponding to the pressed password button 3, the guide post 32 moves downwards, the guide hole moves to the connecting hole position, the guide holes of other guide posts 32 are all arranged at the connecting hole position, the complete conduction of the connecting hole can be realized, then the pneumatic button 33 is pressed, the pneumatic button 33 can compress gas, then the compressed gas enters the first telescopic rod through the connecting hole, the piston rod of the first telescopic rod extends out, further the first slide block 14 is driven to move downwards, finally the first clamp on the surface of the first slide block 14 is clamped with the second clamp on the first slide column 12, then the third spring 15 is pulled back, the first slide column 12 moves upwards to leave the corresponding through hole, and the separation of the corresponding first slide column 12 in all through holes is realized, at the moment, the rotating column 2 can be rotated by rotating the key 21, and the rotating column 2 can further drive the security door lock to be locked or unlocked; the safety protection door lock effectively solves the problems that the intelligent safety protection door lock industry is not very standard and has a lot of problems in the prior art, because the electronic door lock can not play a role when power failure or power shortage occurs, the normal access of a user is seriously influenced, the safety protection door lock of a single special key 21 class has the advantages that the key 21 is easy to lose, the user has no two unlocking schemes and can only break and disassemble, meanwhile, the key 21 is easy to steal and is also easy to imitate, the safety factor is lower, the safety factor of the safety protection door lock is further improved, the imitation problem of the key 21 is avoided, the key 21 can be replaced by a password by setting a structure, the problems of losing or imitating the key 21 and the like are avoided, the breaking and disassembling cost of the door lock is prevented, the structure is simple and high in practicability, meanwhile, no electric power is needed, the application range is wide, is suitable for the requirements of different environments.

As an embodiment of the present invention, the guide posts 32 are screwed with the corresponding combination buttons 3; different guide posts 32 and the password buttons 3 can be exchanged at will, and during work; because the operation requirement, we can often need to change the password, because non-electronic lock, when consequently setting up the password, need adjust mechanical structure, for more quick convenient change password, consequently through with threaded connection between guide pillar 32 and the password button 3, twist soon through artifical simple, change wantonly, can be with the quick adjustment that realizes the password, simple structure, the password change demand that satisfies the user that can be very big.

As an embodiment of the present invention, the second telescopic rods are provided at the left positions of the sliding holes other than the rightmost position; the lower end surfaces of the second telescopic rods are fixedly connected with second sliding blocks 16, and fourth springs 17 are arranged above the second sliding blocks 16; the second sliding block 16 is fixedly connected with a third clamp relative to the side surface of one side corresponding to the first sliding column; a third telescopic rod is arranged at a corresponding third clamping position of the first sliding column 12; a piston rod of the third telescopic rod is fixedly connected with a fourth clamping joint; a row of module buttons 34 are correspondingly arranged on the front end surface of the lock shell 1 below the password button 3; a switching button 35 is arranged at the left side position of the password button 3 and the module button 34, and the working is performed; when the key 21 is lost, because the second unlocking scheme can be realized quickly, the problem that the key 21 is lost and can not be unlocked at all and finally the key has to be opened in a breaking-in mode to cause property loss is solved, therefore, by arranging the switching button 35, the air supply direction can be switched, the key 21 loss mode is realized, then the corresponding password of the module button 34 is pressed, the same conduction working principle as the password button 3 is realized, further, the pneumatic button 33 is pressed to introduce the compressed gas into the second telescopic rod, the second slide block 16 can be driven to slide downwards by the second telescopic rod, then the second slider 16 will drive the third latch to latch with the fourth latch, and through the pull back force of the fourth spring 17, the first sliding column 12 can be driven to be separated from the through hole, the same effect as the key 21 is achieved, the problem that the key 21 is lost is solved, and two unlocking schemes are provided.

As an embodiment of the present invention, a reset button 36 is disposed on the front end surface of the lock housing 1 at a position on the right side of the pneumatic button 33, the reset button 36 can reduce air pressure, and is communicated with the first telescopic rod, the second telescopic rod and the third telescopic rod, when in operation; because first joint and second joint block, third joint and fourth joint block, therefore during the use, be difficult to reset, bring inconvenience for the secondary use, in order to solve this problem, consequently through setting up reset button 36, can make first telescopic link through pressing reset button 36, the piston rod of second telescopic link and third telescopic link all pulls back, realize the quickly separating of first card machine and second joint, the quickly separating of third joint and fourth joint, consequently reset button 36 can realize the quick reset of mechanism, be convenient for quick locking.

As an embodiment of the invention, a fourth telescopic rod is arranged at the bottom of the jack, and in the module starting by the module button 34, the fourth telescopic rod is communicated with the pneumatic button 33 and the reset button 36, so that when the module is in operation; when running into that key 21 card is dead to be difficult to extract, or key 21 during the fracture problem in the jack, often key 21 is difficult to take out, brings serious interference for normal unblanking and lock, leads to the condemning problem of security protection lock even, consequently through setting up the fourth telescopic link, can make the piston rod of fourth telescopic link ejecting through pneumatic button 33, and then can outwards ejecting key 21, solved key 21 and do not have when the jack fracture and pull the handle, the practicality is high.

As an embodiment of the invention, a knob 37 is arranged on the front end surface of the lock shell 1 at the left side position of the pneumatic button 33, and the knob 37 can compress gas and is communicated with the pneumatic button 33 for working; when the key 21 is stuck or broken in the jack, the key is often difficult to be simply pulled out manually or ejected out by direct manual pressing, so that the fourth telescopic rod can be ejected out slowly and powerfully by arranging the knob 37 and continuously compressing gas through the rotation of the knob 37, and the ejection force of the key 21 in the jack is improved.

The specific working process is as follows:

when the key is in operation, firstly, a special key 21 is inserted into the jack of the rotating column 2, the special structure of the key 21 can jack up the second sliding column 22 in the through hole for different distances, the second sliding column 22 further drives the first sliding column 12 to move upwards in the sliding hole, and as the length of the second sliding column 22 is matched with the length of the key 21, the upper surface of the second sliding column 22 can be just jacked to the outer arc surface position of the rotating column 2 by the key 21, so that the first sliding column 12 is just separated from the through hole; then according to the set password, the password button 3 is pressed downwards in sequence, the password button 3 further drives the guide post 32 to move downwards, as the guide hole is arranged on the upper position of the connecting hole on the surface of the guide post 32 corresponding to the pressed password button 3, the guide post 32 moves downwards, the guide hole moves to the connecting hole position, the guide holes of other guide posts 32 are all arranged at the connecting hole position, the complete conduction of the connecting hole can be realized, then the pneumatic button 33 is pressed, the pneumatic button 33 can compress gas, then the compressed gas enters the first telescopic rod through the connecting hole, the piston rod of the first telescopic rod extends out, further the first slide block 14 is driven to move downwards, finally the first clamp on the surface of the first slide block 14 is clamped with the second clamp on the first slide column 12, then the third spring 15 is pulled back, the first slide column 12 moves upwards to leave the corresponding through hole, and the separation of the corresponding first slide column 12 in all through holes is realized, at the moment, the rotating column 2 can be rotated by rotating the key 21, and the rotating column 2 can further drive the security door lock to be locked or unlocked; by arranging the switching button 35, air source guiding can be switched, a key 21 loss mode is realized, then a corresponding password of the module button 34 is pressed, a conduction working principle same as that of the password button 3 is realized, the pneumatic button 33 is further pressed, compressed air can be introduced into the second telescopic rod, the second sliding block 16 can be driven to slide downwards through the second telescopic rod, then the second sliding block 16 can drive the third clamping and the fourth clamping to be clamped, the first sliding column 12 can be driven to be separated from the through hole through the back tension of the fourth spring 17, and the effect same as that of the key 21 is realized; by arranging the reset button 36, piston rods of the first telescopic rod, the second telescopic rod and the third telescopic rod can be pulled back by pressing the reset button 36, so that the quick separation of the first clamping machine and the second clamping machine and the quick separation of the third clamping machine and the fourth clamping machine are realized; by arranging the fourth telescopic rod, a piston rod of the fourth telescopic rod can be ejected out through the pneumatic button 33, and the key 21 can be ejected out; by arranging the knob 37, the gas can be continuously compressed by the rotation of the knob 37, and the fourth telescopic rod can be slowly and powerfully ejected.

While there have been shown and described what are at present considered the fundamental principles of the invention, its essential features and advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.

Claims

1. A security door lock comprises a lock shell (1), a rotating column (2) and a password button (3); the method is characterized in that: the lock shell (1) is designed to be of a cuboid structure; a core column (11) is fixedly connected to the front end surface of the lock shell (1) close to the left lower corner of the lock shell (1); the front end surface of the core column (11) is provided with a rotating hole at the axis position of the core column (11); the inner part of the rotating hole is rotatably connected with a rotating column (2); the front end face of the rotating column (2) is provided with an insertion hole at the axis position of the rotating column (2); a key (21) is inserted into the jack; through holes are uniformly distributed on the outer arc surface of the rotating column (2) at a position right above the rotating column (2), and the through holes are distributed in a straight line in the front-back direction; sliding holes are formed in the inner arc surface of the core column (11) at the positions of the through holes; the inner parts of the sliding holes are vertically and slidably connected with first sliding columns (12); a first spring (13) is connected between the upper surface of the first sliding column (12) and the upper surface of the corresponding sliding hole; the inner parts of the through holes are all connected with second sliding columns (22) in a sliding manner; the front end face of the lock shell (1) is provided with uniformly arranged code holes at the right upper position of the core column (11), and the code holes are distributed in a straight line from left to right; password buttons (3) are connected inside the password holes in a front-back sliding manner; a second spring (31) is connected between the password button (3) and the front end face of the lock shell (1); connecting holes are formed in the lock shell (1) in the left-right direction of the positions of the password holes and communicate the password holes; guide posts (32) are connected inside the password holes in a sliding mode, and the guide posts (32) are connected with the corresponding password buttons (3); a guide hole is formed in the surface of the guide post (32); in the initial state, the guide holes of any five guide pillars (32) are positioned close to the connecting hole, and the guide holes of the rest guide pillars (32) are positioned at the connecting hole; an air inlet is formed in the right side of the connecting hole; the left side position of the connecting hole is provided with an air outlet; a first telescopic rod is arranged at the right side position of the rightmost sliding hole and communicated with the air outlet hole; the lower end face of the first telescopic rod is fixedly connected with a first sliding block (14), and a third spring (15) is arranged above the first sliding block (14); the side face of one side of the first sliding block (14) opposite to the first sliding column (12) is fixedly connected with a first clamping joint; the first sliding column (12) is provided with a second telescopic rod at a first clamping position; a piston rod of the second telescopic rod is fixedly connected with a second clamp; the front end face of the lock shell (1) is provided with a pneumatic button (33) at a position close to the lower surface of the lock shell (1), and the pneumatic button (33) can compress gas and guide the gas into the gas inlet hole.

2. The security door lock according to claim 1, characterized in that: the guide post (32) and the corresponding code button (3) are in threaded connection; different guide posts (32) and the code buttons (3) can be exchanged at will.

3. The security door lock according to claim 1, characterized in that: the left positions of the sliding holes except the rightmost side are provided with second telescopic rods; the lower end surfaces of the second telescopic rods are fixedly connected with second sliding blocks (16), and fourth springs (17) are arranged above the second sliding blocks (16); the second sliding block (16) is fixedly connected with a third clamping joint relative to the side surface of one side of the corresponding first sliding column; a third telescopic rod is arranged at the corresponding third clamping position of the first sliding column (12); a piston rod of the third telescopic rod is fixedly connected with a fourth clamping joint; a row of module buttons (34) are correspondingly arranged on the front end surface of the lock shell (1) below the password button (3); and the left side positions of the password button (3) and the module button (34) are provided with a switching button (35).

4. The security door lock according to claim 3, characterized in that: the front end face of lock shell (1) is equipped with reset button (36) in the right side position of pneumatic button (33), and reset button (36) can reduce atmospheric pressure, and all communicate with first telescopic link, second telescopic link and third telescopic link.

5. The security door lock according to claim 1, characterized in that: the hole bottom position of jack is equipped with the fourth telescopic link, in module button (34) start module, all communicates between fourth telescopic link and pneumatic button (33) and reset button (36).

6. The security door lock according to claim 5, characterized in that: the front end face of the lock shell (1) is provided with a knob (37) at the left side position of the pneumatic button (33), and the knob (37) can compress gas and is communicated with the pneumatic button (33).