CN108798274B

CN108798274B - Electronic safety lock

Info

Publication number: CN108798274B
Application number: CN201810530489.1A
Authority: CN
Inventors: 郑志豪
Original assignee: YONGKANG JIECHUANG INDUSTRIAL PRODUCT DESIGN CO LTD
Current assignee: Jinhua Xiaopeng Intelligent Technology Co ltd
Priority date: 2018-05-29
Filing date: 2018-05-29
Publication date: 2020-04-24
Anticipated expiration: 2038-05-29
Also published as: CN108798274A

Abstract

The invention relates to an electronic safety lock.A lock hook is fixed in a lock cavity of a door frame through a hinge point at the middle part of the lock hook; the front end of the lock hook is hooked upwards, and the tail end of the lock hook acts on the lock cavity of the door frame through elastic support; an electromagnet is arranged in the door frame lock cavity, and a vertical rack is fixed on a push rod of the electromagnet; the rack is meshed with the gear shaft; two ends of the gear shaft are fixed on the pillar in the door frame lock cavity through a bearing piece; a limit plate is also arranged on the push rod of the electromagnet; when the limiting plate rises, the tail end of the lock hook is jacked up and is compressed to be elastically supported; one end of the gear shaft is sleeved with a connecting rod vertical to the gear shaft through a sleeve; the lower end of the connecting rod is provided with a hinged joint, and a spring is arranged between the hinged joint and the sleeve; the hinged joint is movably connected to the transverse bolt; the transverse bolt is coaxially sleeved on the guide rod; the guide rod is matched with the guide post through the guide sleeve; the other end of the gear shaft is provided with an eccentric wheel; a through hole matched with the vertical bolt is arranged on a bottom plate of the door frame lock cavity; the upper end of the vertical bolt is in tangent fit with the eccentric wheel through a transmission plate.

Description

Electronic safety lock

Technical Field

The invention relates to the field of door lock structures, in particular to an electronic safety lock.

Background

The existing blade lock cylinders on the market at present usually need to be inserted with keys in lock holes, and the locks can be opened only when the keys are rotated under normal conditions. The lock core of the lock is internally provided with a lock hole shaft which can rotate and a lock core seat which cannot rotate, one side in the lock hole is provided with one or more rows of marbles, a lock column is arranged behind the marbles, a spring is arranged behind the lock column, and the lock column is clamped between the lock core seat and the lock hole shaft under the elastic force of the spring in a locking state. When a key is inserted into the lock hole, the concave-convex part on the key presses the marble, the marble pushes the lock cylinder, the lock cylinder presses the spring and completely retreats into the lock cylinder seat, at the moment, the lock hole shaft can rotate along with the key, the lock hole shaft rotates to drive the eccentric wheel arranged at the tail end or the middle part of the shaft, and the eccentric wheel rotates to pull the lock tongue open, so that normal unlocking is completed. The existing lock core has poor safety due to the inherent structural defects, namely, the lock core is unlocked by inserting a key and rotating a key to drive a lock hole shaft to rotate. Lawbreakers can unlock the lock without using a correct key or a key, and the common methods include a technical dislocation unlocking method and a violent picking unlocking method.

Disclosure of Invention

The invention mainly solves the technical problem of providing an electronic safety lock, and solves the problems that an existing mechanical lock is easy to block, low in safety performance and easy to damage and crack.

In order to solve the technical problem, the invention adopts a technical scheme that an electronic safety lock is provided, which comprises: the locking mechanism comprises an electromagnet, a rack, a gear shaft, a locking hook, a transverse bolt and a vertical bolt; the lock hook is fixed in the door frame lock cavity through a hinge point at the middle part of the lock hook; the front end of the lock hook is hooked upwards, and the tail end of the lock hook acts on the lock cavity of the door frame through elastic support; the elastic support extends downwards to push the lock hook, and the hook on the lock hook turns upwards and hooks the lock tongue entering the lock cavity of the door frame; a vertically telescopic electromagnet is arranged in the door frame lock cavity, and a vertical rack is fixed on a push rod of the electromagnet; the rack is meshed with the gear shaft; two ends of the gear shaft are fixed on the pillar in the door frame lock cavity through a bearing piece; a limit plate is also arranged on the push rod of the electromagnet; when the limiting plate rises, the tail end of the lock hook is jacked up and the elastic support is compressed; one end of the gear shaft is sleeved with a connecting rod vertical to the gear shaft through a sleeve; the lower end of the connecting rod is provided with a hinged joint, and a spring is arranged between the hinged joint and the sleeve; the hinged joint is movably connected to the transverse bolt; the transverse bolt is coaxially sleeved on a horizontal guide rod; the guide rod is matched with a vertical guide post through a guide sleeve; the gear shaft rotates to enable the spring to push the transverse bolt to the tail end of the guide rod, the guide rod slides to the lowest end position of the guide pillar, and the transverse bolt extends out of the door frame lock cavity; the other end of the gear shaft is provided with an eccentric wheel; the vertical bolt is vertically fixed through a guide pipe, and a through hole matched with the vertical bolt is formed in a bottom plate of the door frame lock cavity; the upper end of the vertical bolt is in tangential fit with the eccentric wheel through a transmission plate, when the electromagnet is electrified to work, the push rod of the electromagnet retracts against the elastic force, and the limiting plate rises; the rack rises and drives the gear shaft to rotate in the positive direction, the guide rod slides down to the lower end of the guide pillar, and the transverse bolt slides to the tail end of the guide rod while moving down; the eccentric wheel jacks up the transmission plate, the vertical bolt retracts into the door frame lock cavity, when the electromagnet is powered off, the push rod extends out under the elastic force retaining force, and the limiting plate descends; the rack extends downwards to drive the gear shaft to rotate reversely, the guide rod slides up to the middle part of the guide pillar, and the transverse bolt moves upwards and contracts backwards; the eccentric wheel lowers the transmission plate, and the vertical bolt extends out of the door frame lock cavity.

Preferably, the front end of the transverse bolt is provided with a protruding end; the width of the protruding end is larger than the diameter of the transverse bolt body;

preferably, a T-shaped groove matched with the front end of the transverse bolt is arranged on the side wall of the door frame lock cavity; the door plate side wall corresponding to the door frame is also provided with the T-shaped groove.

The invention has the beneficial effects that: an electronic safety lock is provided, which has the following advantages:

1. the mechanism is drawn together to pure mechanical structure joining in marriage machine, divides the locking into three direction and goes on, provides common locking force through the locking unit of difference, and it can realize safe locking.

2. The mechanical transmission is used as a main part, the power of the power-maintaining electromagnet is matched, the power supply can be self-contained, the locking is avoided, and the door lock is suitable for industrial door lock structures of various sliding doors, rail doors and the like.

3. The mechanical lock has the advantages that the defect that the existing mechanical lock is easy to crack is overcome, the confidentiality of the mechanical lock is greatly improved, various alarm structures can be matched, and the possibility of cracking is effectively reduced.

Drawings

FIG. 1 is a block diagram of an electronic security lock of the present invention;

FIG. 2 is a schematic diagram of another oblique view of the electronic safety lock;

FIG. 3 is a structural left side view of the electronic safety lock;

FIG. 4 is a structural elevation view of the electronic safety lock;

FIG. 5 is a schematic diagram of the right side view of the structure of the electronic safety lock.

Detailed Description

The invention is described in further detail below with reference to the following detailed description and accompanying drawings: referring to fig. 1 to 2, an electronic safety lock, generally, a door frame 1 is matched with a door panel 2, and a lock core and a bolt are respectively installed on the door frame 1 and the door panel 2. This electronic safety lock also needs supporting spring bolt, and the spring bolt is installed on the lateral wall of door plant 2, selects the cross-columnar shape spring bolt 3 that is suitable for the latch hook to catch in this embodiment. Set up door frame lock chamber on door frame 1, include in door frame lock chamber: the device comprises an electromagnet 4, a rack 5, a gear shaft 6, a lock hook 7, a transverse bolt 8 and a vertical bolt 9. The lock hook 7 is fixed in the door frame lock cavity through a hinge point at the middle part of the lock hook, the front end of the lock hook 7 is hooked upwards, and the tail end of the lock hook acts on the door frame lock cavity through elastic support. In this embodiment, the first spring 10 is selected as the elastic support, and when the latch hook 7 is sprung downward under the action of the first spring 10, the latch hook is hooked up and turned upward, so as to hook the transverse columnar bolt 3, and when the latch hook 7 overcomes the elastic force and is compressed upward, the latch hook is hooked up and turned downward to separate from the transverse columnar bolt 3.

The turning motion of the lock hook 7 is realized by the first spring 10 and the electromagnet 4 together, the vertical telescopic electromagnet 4 is arranged in a lock cavity of the door frame, the second spring 11 for providing holding force is arranged on a push rod of the electromagnet 4, the electromagnet 4 is powered on, the push rod overcomes the holding force of the second spring 11 to contract, the electromagnet 4 is powered off, and the push rod extends out under the action of the holding force and keeps the position at a stroke terminal. A limit plate 13 is arranged on a push rod of the electromagnet 4, the limit plate 3 is perpendicular to the push rod, and when the limit plate 13 rises, the tail end of the lock hook 7 is jacked up and is compressed by the first spring 10.

A vertical rack 5 is fixed on a push rod of the electromagnet 4, and the rack 5 is vertically pushed by the push rod. One side of the rack 5 is provided with a gear shaft 6, the gear shaft 6 is sleeved with a straight gear 25, and the rack 5 is in meshing transmission with the straight gear 25. Two ends of the gear shaft 6 are fixed on a pillar 14 through a bearing piece, and the pillar 14 is vertically supported in the door frame lock cavity.

One end face of the gear shaft 6 is provided with a sleeve 15 perpendicular to the axis of the gear shaft, and a connecting rod 16 is matched in the sleeve 15. The upper end of the connecting rod 16 is provided with a limiting outer edge to avoid sliding out of the sleeve 15 during movement, the lower end of the connecting rod 16 is provided with a hinged joint 17, and a spring is arranged between the hinged joint 17 and the sleeve 15, wherein the spring is a third spring 18 in the embodiment. The articulated joint 17 is movably connected to the transverse pin 8, the transverse pin 8 is coaxially sleeved on a horizontal guide rod 19, and the guide rod 19 is matched with a vertical guide post 21 through a guide sleeve 20. When the gear shaft 6 rotates, the connecting rod 16 pulls the guide rod 19 to vertically lift on the guide post 21, and simultaneously can pull the cross pin 8 on the guide rod 19 to extend and retract along the guide rod 19. According to the change of the vertical distance between the gear shaft 6 and the guide rod 19, the deformation degree of the third spring 18 is in direct proportion to the vertical distance, so that the transverse pin 8 is pulled back when the third spring 18 is compressed, and the transverse pin 8 is pushed out when the third spring 18 is bounced open. The working position of the transverse bolt 8 is set, when the gear shaft 6 rotates to enable the third spring 18 to push the transverse bolt 8 to the tail end of the guide rod 19, the guide rod 19 slides to the lowest end position of the guide post 21, and the transverse bolt 8 extends out of the door frame lock cavity; the gear shaft 6 rotates, the guide rod 19 slides to the middle of the guide post 21, and the transverse bolt 8 retracts to a certain size. The front end of the transverse bolt 8 is provided with a protruding end, and the width of the protruding end is larger than the diameter of the transverse bolt body. The side wall of the door frame lock cavity is provided with a T-shaped groove matched with the front end of the transverse bolt, so that the corresponding door plate side wall of the door frame is also provided with a corresponding T-shaped groove. The transverse bolt 8 enters from the large caliber at the bottom of the T-shaped groove, and along with the upward movement and retraction of the transverse bolt 8, the transverse bolt 8 can be clamped into the small caliber at the upper part of the T-shaped groove to play a locking role.

The other end of the gear shaft 6 is provided with an eccentric wheel 22, the vertical bolt 9 is vertically fixed through a guide pipe 23, the guide pipe 23 is fixed in the door frame lock cavity, and a through hole matched with the vertical bolt 9 is arranged on the bottom plate of the door frame lock cavity. The vertical bolt 9 is sleeved with a fourth spring 24, and the fourth spring 24 acts between the vertical bolt 9 and the bottom plate of the door frame lock cavity. The upper end of the vertical bolt 9 is in tangent fit with the eccentric wheel 22 through a transmission plate 12, when the eccentric wheel 22 jacks up the transmission plate 12, the vertical bolt 9 stretches the fourth spring 24 upwards, and the vertical bolt 9 retracts into the door frame lock cavity; when the eccentric 22 lowers the drive plate 12, the vertical bolt 9 extends out of the door frame lock cavity under the tension of the fourth spring 24.

The working state of the structure is as follows: when the electromagnet 4 is electrified to work, the push rod of the electromagnet retracts against the elastic force, and the limiting plate 13 rises. The rack 5 ascends and drives the gear shaft 6 to rotate forward, the guide rod 19 slides down to the lower end of the guide post 21, and the transverse bolt 8 slides to the tail end of the guide rod 19 while moving down. The eccentric 22 jacks up the driving plate 12 and the vertical bolt 9 retracts into the door frame lock cavity.

The electromagnet 4 is powered off, the push rod extends out under the elastic force retaining force, and the limit plate 13 descends. The rack 5 extends downwards to drive the gear shaft 6 to rotate reversely, the guide rod 19 slides to the middle of the guide post 21, and the transverse bolt 8 moves upwards and retracts. The eccentric 22 lowers the drive plate 12 and the vertical bolt 9 extends out of the door frame lock cavity.

However, the maximum stroke of the electromagnet 4, the transmission meshing length of the rack 5 and the spur gear 25, and the rotation angle of the eccentric wheel 22 and the connecting rod 16 are also included in the structure to be noted, and the data form the synchronization degree of the lock hook, the cross bolt 8 and the vertical bolt 9. In general, the maximum stroke of the electromagnet 4 in the scheme is determined according to the size of the lock cavity, and the meshing length of the rack 5 and the spur gear 25 is based on 180-degree rotation of the spur gear 25, and specifically, the diameter of the spur gear 25 is taken as a reference. The relationship between the connecting rod 16 and the eccentric wheel 22 is based on debugging in the specific installation process, and the transverse bolt 8 and the vertical bolt 9 are ensured to be in a locking state under the power-off holding state of the electromagnet 4. On the contrary, when the electromagnet 4 is electrified, the three locking modes are in a retraction state.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. An electronic safety lock, characterized in that: including setting up in door frame lock chamber: the locking mechanism comprises an electromagnet, a rack, a gear shaft, a locking hook, a transverse bolt and a vertical bolt; the lock hook is fixed in the door frame lock cavity through a hinge point at the middle part of the lock hook; the front end of the lock hook is hooked upwards, the tail end of the lock hook acts on a lock cavity of the door frame through an elastic support, the elastic support is a first spring, the first spring extends downwards to push the lock hook, and the hook on the lock hook turns upwards and hooks a lock tongue entering the lock cavity of the door frame; a vertically telescopic electromagnet is arranged in the door frame lock cavity, a vertical rack is fixed on a push rod of the electromagnet, and a second spring for providing holding force is arranged on the push rod of the electromagnet; the rack is meshed with the gear shaft; two ends of the gear shaft are fixed on the pillar in the door frame lock cavity through a bearing piece; a limit plate is also arranged on the push rod of the electromagnet; when the limiting plate rises, the tail end of the lock hook is jacked up and compresses the first spring; one end of the gear shaft is sleeved with a connecting rod vertical to the gear shaft through a sleeve; the lower end of the connecting rod is provided with a hinge joint, a spring is arranged between the hinge joint and the sleeve, the spring is a third spring, the deformation degree of the third spring is in direct proportion to the vertical distance, so that the transverse bolt can be pulled back when the third spring is compressed, and the transverse bolt can be pushed out when the third spring is bounced open; the hinged joint is movably connected to the transverse bolt; the transverse bolt is coaxially sleeved on a horizontal guide rod; the guide rod is matched with a vertical guide post through a guide sleeve; the gear shaft rotates to enable the spring to push the transverse bolt to the tail end of the guide rod, the guide rod slides to the lowest end position of the guide pillar, and the transverse bolt extends out of the door frame lock cavity; the other end of the gear shaft is provided with an eccentric wheel; the vertical bolt is vertically fixed through a guide pipe, a fourth spring is sleeved on the vertical bolt, and a through hole matched with the vertical bolt is formed in a bottom plate of the door frame lock cavity; the upper end of the vertical bolt is in tangential fit with the eccentric wheel through a transmission plate, and when the electromagnet is electrified to work, the push rod of the electromagnet retracts against the elastic force, and the limiting plate rises; the rack rises and drives the gear shaft to rotate in the positive direction, the guide rod slides down to the lower end of the guide pillar, and the transverse bolt slides to the tail end of the guide rod while moving down; the eccentric wheel jacks up the transmission plate, the vertical bolt retracts into the door frame lock cavity, and when the electromagnet is powered off, the push rod extends out under the elastic force retaining force, and the limiting plate descends; the rack extends downwards to drive the gear shaft to rotate reversely, the guide rod slides up to the middle part of the guide pillar, and the transverse bolt moves upwards and contracts backwards; the eccentric wheel lowers the transmission plate, and the vertical bolt extends out of the door frame lock cavity.

2. An electronic safety lock according to claim 1, wherein: the front end of the transverse bolt is provided with a protruding end; the width of the protruding end is larger than the diameter of the transverse plug pin body.

3. An electronic safety lock according to claim 1, wherein: a T-shaped groove matched with the front end of the transverse bolt is formed in the side wall of the door frame lock cavity; the door plate side wall corresponding to the door frame is also provided with the T-shaped groove.