The making method of password external door lock
[technical field]
[0001] the invention relates to the technical field of anti-theft door lock, in particular to a password external door lock.
[background technology]
[0002] there is a hole in the lock cylinder of the traditional new knob password lock on the market at present, and the password wheel passes through the hole. For example, in the application of the new knob password lock on the diary, zl02228654.3 discloses an invention patent named the new knob password lock. At present, it is a new knob password lock applied to the diary and philately. Most of the inner doors use key locks. If the two are combined, it can not only increase the security, improve the anti-theft ability and ensure the safety of life and property, especially in the places where co renting is popular, two or more households share a unit of bedroom, although there are anti-theft doors, it is not enough to effectively prevent theft. If you want to combine the new rotary knob cipher lock with the common key lock, you need to redesign the lock post of the new rotary knob cipher lock. The applicant has developed a rotary cipher lock, which includes three groups of knobs and cipher wheel structure, and has the function of emergency unlocking. In order to prevent the occurrence of forgetting the cipher code, the user can preset one of the emergency unlocking mechanisms when purchasing the lock Remember the number, once the password is forgotten, the emergency damage hole on the panel can be damaged. Confirm the preset number by turning the adjustment hole to find the calibration screw, and release the locking state of one password wheel. The remaining two groups of password wheels can be unlocked by trial and error method, thus reducing the number and difficulty of trial and error password groups. However, due to its unlimited trial and error opportunities, there are certain security risks. Therefore, in view of the lack and inconvenience of the above existing technology, the applicant adheres to the spirit of research and innovation and excellence, and uses its professional vision and expertise to develop a kind of secret code external door lock.
[content of invention]
[0003] the purpose of the invention is to provide a device that can lock the emergency wheel in case of disordered trial and error, so as to overcome the shortage of providing unlimited trial and error opportunities in the prior art.
[0004] the invention is realized by the following technical scheme, including lock body mechanism, lock shell, knob password mechanism, control mechanism and anti lock button;
The lock shell includes a panel and a back plate, and an inner and outer handle arranged on both sides of the lock shell;
The control mechanism is connected with the knob cipher mechanism, the control mechanism is connected with the lock body mechanism through the key lock cylinder mechanism, and the control mechanism also adds an emergency unlocking mechanism;
The key lock cylinder mechanism includes a first lock cylinder plate, a second lock cylinder plate, a lock cylinder limit plate and a circlip controlled by the key lock cylinder, and a connecting ear hook connected with the lock body mechanism, wherein the first lock cylinder plate limits the connecting ear hook, and the connecting ear hook limits the second lock cylinder plate;
The first lock core plate includes a first center adjusting hole, a first guide groove, a slanting column and a first right-hand rotating piece, the slanting column is arranged on the right side of the first lock core plate, and the first right-hand rotating piece moves laterally to the right under the action of the key lock cylinder;
The second lock core plate includes a second center adjusting hole, a second guide groove, an ear hook stop post, a second right-handed piece and a left-handed piece, which are connected with the ear hook limit ear hook stop post, the second right-handed piece moves laterally to the right under the function of the key lock core, and the left-handed piece moves laterally to the left under the function of the key lock core;
The guide block set on the right side of the lock cylinder limit plate contacts with the inclined column of the first lock cylinder plate and limits the first lock cylinder plate; the left side of the lock cylinder limit plate is set with the first arc groove and the second arc groove arranged up and down; the circlip has a positioning card
An arc is clamped in the first arc groove or the second arc groove;
The first guide groove includes 1 and Π two stations, and the second guide groove includes 1, N and m three stations, wherein station I is in unlocking state, station π is in locking state, station m is in unlocking state and password lock state is reserved. The first arc slot is in the position of 1, π, and the second arc slot is in the position of M.
[0005] when locking the door, refer to the attached figure to the attached figure. The lock mechanism moves to the left, correspondingly the first lock core plate and the second lock core plate move to the left and enter position π. The first lock core plate blocks the upward movement of the connecting ear hook, so the connecting ear hook connected with the lock body cannot move upward. At the same time, the connecting ear hook blocks the further left movement of the second lock core plate, which is the locking state of position π.
[0006] when unlocking, turn the key cylinder clockwise, i.e. to the right, and the first and second right rotating pieces contacted by the key cylinder will drive the corresponding first and second lock cylinder plates to move right into position i. at this time, the connecting ear hook will lose the block of the first lock cylinder plate and move up. At the same time, the lock mechanism will unlock and move right, and the second lock cylinder plate will correspondingly lose the limit position of the connecting ear hook It is possible to move further to the left, which is the unlocking state of station I.
[0007] when unlocking the key and retaining the password, the key cylinder is turned to the left by turning it anticlockwise on the basis of the unlocking state of station I. at this time, the left-hand blade drives the second lock cylinder plate to move to the left under the function of the key cylinder to enter
Position m: at the same time, the lock cylinder limit plate moves upward under the action of the key lock cylinder, the guide block contacts with the inclined column of the first lock cylinder plate to limit its position, then the first lock cylinder plate cannot be reset, and the circlip is clamped into the second arc groove to fix it, so the first lock cylinder plate should not enter position I and fail, and the connecting ear hook moves freely. If the key lock is to be set again, insert the key and rotate it to the right, so that the lock cylinder limit plate moves downward under the action of the key lock cylinder, and the arc is clamped into the first arc groove, at this time, the inclined column of the first lock cylinder plate loses the restriction of the guide block.
[0008] the knob cipher mechanism comprises upper and lower rows
