Background
Most of the existing door locks are mechanical locks which adopt a wedge-shaped bolt to automatically lock, most of the locks are provided with safety locks, and the anti-theft function can be realized by locking the safety locks when people go out; however, due to different personal use habits, many people always habitually close the door and leave the door directly when going out for a short time, and the safety lock is not locked, so that a riding machine is provided for lawless persons, and in the case, the wedge-shaped bolt can be pushed open only by inserting the hard card into the door slot, so that the door can be opened easily and enter the room to implement illegal behaviors.
Particularly, in places such as dormitories, rented rooms and the like around the campus, the safety consciousness of students is thin, the living environment is relatively comfortable, the situation that the safety lock is not locked when the students go out is easy to occur, and the places are high-incidence places of cases such as theft, robbery and the like; different from professional burglary, the mode of opening the door by using the card is easy to master, does not need to have professional unlocking skills, and can be implemented by anyone, so that for the criminal cases, the safety awareness of related personnel is improved, and effective safety protection measures are adopted.
Disclosure of Invention
Aiming at the situation, in order to make up the technical defects in the prior art, the invention provides the anti-card-inserting safety door lock, so as to solve the problem that the existing lock is easy to unlock by a card.
The technical scheme for solving the problem is as follows: the lock body is provided with a wedge-shaped pushing bolt which is arranged in parallel with the wedge-shaped bolt and is arranged on the side corresponding to the wedge-shaped surface of the wedge-shaped bolt, and the wedge-shaped surface of the wedge-shaped pushing bolt and the wedge-shaped surface of the wedge-shaped bolt face towards the same direction; the lock body is provided with a sliding block arranged in parallel with the wedge-shaped lock tongue, the sliding block is connected with the lock body through at least one pushing spring, and the sliding block slides and pops out of the lock body under the elastic force action of the pushing spring; the wedge-shaped pushing bolt is provided with a sliding rod arranged between the wedge-shaped pushing bolt and a sliding block, the axis direction of the sliding rod is consistent with the sliding direction of the wedge-shaped pushing bolt, a check block corresponding to the sliding rod is arranged on the lock body, the sliding block is provided with a clamping groove matched with the check block, one end of the check block is rotatably connected with the lock body along the axis of the sliding rod, and the other end of the check block is arranged in the clamping groove; the slide bar on have the cam groove along the axis spiral setting of slide bar, have the cam follower who matches with the cam groove on the dog, cam follower arranges the cam groove in, when the slide bar pushed away the spring bolt along with the wedge and slides, the dog produced the rotation through cam groove and cam follower's transmission effect, made dog and draw-in groove contact or separation to realize the locking of slider position or remove the locking.
The card-inserting and unlocking device is exquisite in structure and simple to operate, can automatically protect card-inserting and unlocking behaviors without manual intervention after the door is closed, forcibly reserves the card used for implementing criminal behaviors, provides powerful material evidence for later investigation and evidence-obtaining work, and is convenient for accurately locking lawbreakers according to genetic information such as fingerprints on the card; meanwhile, the operation of the novel sliding block and the thimble is completely the same as that of a conventional lock in daily use, so that no trouble is caused to users, even if illegal card inserting unlocking operation occurs, the sliding block and the thimble can be reset only by using a key to perform normal door opening operation, no other operation is needed, and the use process is simple and rapid.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 7, the invention comprises a lock body 1 and a wedge-shaped bolt 2 which slides to pop out the lock body 1, wherein the lock body 1 is provided with a wedge-shaped pushing bolt 3 which is arranged in parallel with the wedge-shaped bolt 2 and is arranged on the side corresponding to the wedge-shaped surface of the wedge-shaped bolt 2, and the wedge-shaped surface of the wedge-shaped pushing bolt 3 and the wedge-shaped surface of the wedge-shaped bolt 2 face the same direction; the lock body 1 is provided with a sliding block 4 which is arranged in parallel with the wedge-shaped bolt 2, the sliding block 4 is connected with the lock body 1 through at least one pushing spring 5, and the sliding block 4 slides and pops out of the lock body 1 under the elastic force action of the pushing spring 5; a slide rod 6 arranged between the wedge-shaped pushing bolt 3 and a slide block 4 is arranged on the wedge-shaped pushing bolt 3, the axial direction of the slide rod 6 is consistent with the sliding direction of the wedge-shaped pushing bolt 3, a stop block 7 corresponding to the slide rod 6 is arranged on the lock body 1, a clamping groove 8 matched with the stop block 7 is arranged on the slide block 4, one end of the stop block 7 is rotatably connected with the lock body 1 along the axial line of the slide rod 6, and the other end of the stop block 7 is arranged in the clamping groove 8; the slide bar 6 on have along the cam groove 9 of the axis spiral setting of slide bar 6, have the cam follower 10 that matches with cam groove 9 on the dog 7, cam follower 10 arranges in cam groove 9, when slide bar 6 pushed up spring bolt 3 along with the wedge and slides, dog 7 produced the rotation through the transmission effect of cam groove 9 with cam follower 10, made dog 7 and draw-in groove 8 contact or separation to realize the locking of slider 4 position or remove the locking.
Preferably, the sliding block 4 is provided with a baffle 11, the wedge-shaped bolt 2 is provided with a push rod 12 corresponding to the baffle 11, when the wedge-shaped bolt 2 slides towards the inner side of the lock body 1, the push rod 12 gradually approaches the baffle 11 to enable the baffle 11 and the wedge-shaped bolt to generate extrusion contact, and the wedge-shaped bolt 2 pushes the sliding block 4 to slide in the same direction through the baffle 11 and the push rod 12; when the wedge-shaped bolt 2 slides out of the lock body 1, the push rod 12 is separated from the baffle 11 and the two are gradually far away, so that the wedge-shaped bolt 2 is not influenced by the ejection of the sliding block 4.
Preferably, the lock body 1 is provided with at least one return spring 13 corresponding to the wedge-shaped pushing bolt 3, and the wedge-shaped pushing bolt 3 slides out of the lock body 1 under the elastic force of the return spring 13.
Preferably, the slide block 4 is provided with a plurality of thimbles 14 arranged at the sliding-out end of the slide block 4, and the direction of the thimbles 14 is consistent with the sliding direction of the slide block 4.
Preferably, the lock body 1 is provided with a slidable blocking piece 15 corresponding to the position of the sliding block 4, the sliding direction of the blocking piece 15 is perpendicular to the sliding direction of the sliding block 4, and the position of the blocking piece 15 is changed through the sliding blocking piece 15 to block the sliding end of the sliding block 4, so that on one hand, the potential safety hazard caused by accidental ejection of the sliding block 4 can be avoided, and on the other hand, the thimble 14 can be shielded, and personnel can be prevented from being injured due to accidental contact with the thimble 14.
Preferably, the two sliding blocks 4, the two sliding rods 6, the two stoppers 7, the two clamping grooves 8, the two cam grooves 9 and the two cam push rods 10 are respectively and symmetrically arranged on two sides of the wedge-shaped pushing bolt 3, and the two sliding blocks 4 are connected through the baffle 11.
When the invention is used, the lock body 1 is arranged on the door body, and the length of the wedge-shaped pushing bolt 3 extending out of the lock body 1 is ensured to be matched with the gap between the door body and the door frame, in order to ensure the using effect of the invention, the length of the wedge-shaped pushing bolt 3 extending out of the lock body 1 is slightly larger than the gap between the door body and the door frame, and the door frame is provided with a lock hole corresponding to the wedge-shaped bolt 2 and a jack corresponding to the thimble 14.
When the door lock is normally used, the operation of the door lock is the same as that of a conventional door lock, when a door body is closed, the wedge-shaped bolt 2 is bounced into a lock hole on a door frame, and the wedge-shaped pushing bolt 3 is reliably contacted with the door frame.
When a stranger inserts and opens the wedge-shaped bolt 2 by using the card, the wedge-shaped pushing bolt 3 is arranged on the side corresponding to the wedge-shaped surface of the wedge-shaped bolt 2, so that the card firstly contacts the wedge-shaped surface of the wedge-shaped pushing bolt 3 to enable the wedge-shaped pushing bolt 3 to slide towards the inner side of the lock body 1; when the wedge-shaped pushing bolt 3 slides towards the inner side of the lock body 1, the sliding rod 6 moves along with the wedge-shaped pushing bolt in the same direction and drives the stop block 7 to rotate towards the outer part of the clamping groove 8 through the transmission action of the cam groove 9 and the cam push rod 10, when the stop block 7 is completely separated from the clamping groove 8, the sliding block 4 loses the blocking of the stop block 7 and drives the ejector pin 14 to rapidly eject out of the lock body 1 under the elastic force action of the pushing spring 5, and the baffle plate 11 moves along with the sliding block 4 to be close to or; the ejector pin 14 which is ejected quickly penetrates through the card and enters the jack on the doorframe, and the card is locked at the current position and cannot be inserted or pulled out continuously, so that lawbreakers are forced to abandon criminal practices.
When the locked card needs to be taken out, the wedge-shaped bolt 2 only needs to slide to the inner side of the lock body 1 by using a key, when the wedge-shaped bolt 2 slides to the inner side of the lock body 1, the push rod 12 is in contact with the baffle plate 11 and pushes the baffle plate 11 to perform reset sliding, the slide block 4 drives the thimble 14 to slide to the inner side of the lock body 1 again along with the reset sliding of the baffle plate 11, and the thimble 14 is separated from the card; at the moment, the card can be taken down by opening the door body, and the card is reserved, so that the relevant information of criminals can be extracted, and investigation and evidence collection are facilitated; when the clamping piece is taken down, the wedge-shaped pushing bolt 3 pops out of the lock body 1 to reset under the elastic force action of the reset spring 13, the sliding rod 6 moves to the initial position along with the wedge-shaped pushing bolt, and the stop block 7 rotates to the clamping groove 8 under the transmission action of the cam groove 9 and the cam push rod 10; at the moment, the key is released and pulled out, and the sliding block 4 is blocked by the stop 7 and cannot be ejected, so that the next protection process can be conveniently implemented.
When the door body needs to be opened for a long time, the blocking piece 15 is required to slide to a position corresponding to the sliding block 4, so that the thimble 14 and the sliding block 4 are completely shielded by the blocking piece 15, on one hand, the potential safety hazard caused by accidental ejection of the sliding block 4 can be avoided, on the other hand, the thimble 14 can be shielded, and the personnel are prevented from accidentally contacting the thimble 14 and being injured.
The card-inserting and unlocking device is exquisite in structure and simple to operate, can automatically protect card-inserting and unlocking behaviors without manual intervention after the door is closed, forcibly reserves the card used for implementing criminal behaviors, provides powerful material evidence for later investigation and evidence-obtaining work, and is convenient for accurately locking lawbreakers according to genetic information such as fingerprints on the card; meanwhile, the operation of the novel sliding block and the thimble is completely the same as that of a conventional lock in daily use, so that no trouble is caused to users, even if illegal card inserting unlocking operation occurs, the sliding block and the thimble can be reset only by using a key to perform normal door opening operation, no other operation is needed, and the use process is simple and rapid.