CN104033037A - Magnetic lockset - Google Patents

Abstract

The invention provides a magnetic lock, which comprises an outer magnetic ring, a magnetic column, a lock core, a transmission shaft, and a key. Externally, the lock cylinder in the form of an annular column is divided into N flat ring columns in the axial direction, and slideways are provided in each flat ring column along the radial direction, and the directions of the slideways in each flat ring column are not completely consistent; The slideways are respectively equipped with magnetic posts that can slide along the slideways; the magnetic posts repel the same sex as the outer magnetic ring; the key matches the shape of the inner surface of the drive shaft, and is divided into multiple sections longitudinally, and the magnets of the sections are magnetically aligned with the The magnetic columns are the same; the internal slideways of the magnetic lock are composed of various ways, and its characteristics cannot be seen from the outside, so as to ensure that the magnetic lock is not easy to be cracked, and can effectively reduce the wear and tear of the key and the probability of breaking.

Description

magnetic lock

Technical field

The invention relates to the field of hardware appliances, in particular to a safety lock.

Background technique

At present, the common lock is the tumbler lock. The principle is to use a plurality of different cylindrical parts to lock the lock cylinder; when the correct key is put in, each lock spring is pushed to the same height, and the lock cylinder is released. In recent years, various structures such as two-way and three-way marbles have appeared.

Its main disadvantage is that the safety performance is not high enough, and it is easy to be cracked according to the internal structure. In addition, the key teeth are easy to wear or break inside, which causes great inconvenience to normal use.

Contents of the invention

In view of the above problems, the purpose of the present invention is to provide a magnetic lock, which greatly improves the safety of the lock, and the structural features cannot be seen from the outside.

In order to solve the above technical problems, the technical solution adopted by the present invention is: the magnetic lock includes a lock body and a key;

The lock body includes an outer magnetic ring, a lock core, and a transmission shaft from outside to inside;

The outer magnetic ring is sleeved on the outside of the lock core, and the lock core is an annular column, which is sleeved on the outside of the transmission shaft; the lock core in the form of an annular column is divided into N (N>1) flat ring columns in the axial direction , each flat ring column is provided with a slideway in the radial direction, and the directions of the slideways in each flat ring column are not completely consistent;

Each of the slideways is respectively provided with a magnetic column that can slide along the slideway; each of the magnetic columns and the outer magnetic ring repel each other with the same polarity, and when no key is inserted in the lock body, each of the magnetic columns is outside the outer magnetic ring. Under the action of the repulsive force of the magnetic ring, the slideway is protruded out, and pushed against the slots on the outer peripheral wall of the transmission shaft that match the magnetic columns;

The inside of the transmission shaft has a cylindrical key hole, and the inner wall of the key hole is formed with more than two axially extending slide grooves; the key includes a key cylinder that matches the key hole; the key cylinder The surface is made with convex ribs matching the chute; and the key cylinder is divided into N sections corresponding to the N flat ring columns of the lock cylinder in the axial direction, and each section is respectively equipped with A section magnet; the direction of the magnetic force lines of the section magnet has the following characteristics: when the key cylinder is inserted into the keyhole, each section magnet repels each other with the same pole of the magnetic column in each flat ring column, and the repulsion force is greater than The magnetic repulsion between the magnetic column and the outer magnetic ring.

The beneficial effect of the present invention is that: when no key is inserted, the magnetic column is subjected to the magnetic repulsion of the outer magnetic ring, and pushes against the slot hole on the outer peripheral wall of the transmission shaft, thereby locking the lock core; and after inserting the key into the key hole , because the magnets of each section on the key cylinder repel the magnetic columns in each flat ring column with the same polarity, and the repulsion force is greater than the magnetic repulsion force between the magnetic column and the outer magnetic ring, so each magnetic column is pushed outward away from the transmission shaft to unlock the lock cylinder.

Since the lock core of the magnetic lock is divided into N flat ring columns in the axial direction, a slideway is provided in each flat ring column along the radial direction, and the direction of the slideway can be along any direction of the diameter of the flat ring column, so the N slideways There are many ways to form the road, which greatly increases the security of the lock; in addition, no matter from the keyhole or the key, the internal structure cannot be seen from the appearance, and it is not easy to be copied, which further improves the security; and Because the key is a cylinder, there is no complicated tooth structure, and it is not easy to be worn and broken.

Preferably, gaps are left between magnets of adjacent sections of the key to reduce magnetic interference between magnets of adjacent sections.

As a preference, the outside of the section magnets is wrapped by a magnetically conductive layer, there is a non-magnetically conductive body connected between the section magnets and the magnetically conductive layers, and there is a gap between adjacent magnetically conductive layers; each magnetically conductive layer is opposite to each section The magnets form a magnetic shield; the magnetic interference between the adjacent magnets is eliminated as much as possible, and the service life is extended.

Preferably, the lock core can be divided into 8-12 flat ring columns in the axial direction. This range not only ensures the safety of the lock, but also facilitates production and fabrication.

Description of drawings

Fig. 1 is a cross-sectional view of an embodiment of the present magnetic lock.

Fig. 2 is a longitudinal sectional view of the embodiment of Fig. 1 .

Fig. 3 is a longitudinal sectional view of the key of Fig. 1 embodiment.

Detailed ways

Example

In the embodiment of the magnetic lock shown in FIGS. 1 to 3 , the magnetic lock includes an outer magnetic ring 1 , a lock core 2 , a magnetic post 23 , a transmission shaft 3 , and a key 4 .

The outer magnetic ring 1 is a permanent magnet, which is sleeved on the outside of the lock core 2 , and the lock core 2 is an annular column, which is sleeved on the outside of the transmission shaft 3 .

As shown in Figures 1 and 2, the lock core 2 in the form of an annular column is divided into ten flat ring columns 21 in the axial direction, and each flat ring column 21 is provided with a slideway 20 along the radial direction, and each flat ring column 21 The directions of the inner slides 20 are not exactly the same; each of the slides 20 is respectively provided with a magnetic post 23 that can slide along the slide 20 ; In this embodiment, as shown in FIG. 1, the directions in which each slideway 20 is opened are different. For FIG. Viewed from the front, the opening directions of the slideways 20 intersect each other.

The inside of the transmission shaft 3 has a cylindrical keyhole, and the inner wall of the keyhole is formed with three axially extending slide grooves; the key 4 includes a key cylinder that matches the keyhole; the key cylinder The surface of the body is shaped with ribs matching the chute; and the key cylinder is divided into 10 sections corresponding to the 10 flat ring columns 21 of the lock cylinder in the axial direction, and each section is respectively A section magnet 6 is provided; the direction of the magnetic force lines of the section magnet 6 has the following characteristics: when the key cylinder is inserted into the keyhole, each section magnet 6 is of the same pole as the magnetic column 23 in each flat ring column 21 repel each other, and the repulsive force is greater than the magnetic repulsive force between the magnetic column 23 and the outer magnetic ring 1 .

Described key 4, its section magnet outside has magnetic conduction layer 7 wrapping, has non-magnetic conduction layer to join between section magnet 6 and magnetic conduction layer 7, leaves gap between adjacent magnetic conduction layer 7, makes each The magnetically permeable layer forms a magnetic shield for the magnets in each section; the magnetic interference between the magnets in adjacent sections is eliminated as much as possible, and the service life is prolonged.

When the key 4 is not inserted in the lock body, each of the magnetic posts 23 will push against the grooves matched with each of the magnetic posts 23 on the outer peripheral wall of the transmission shaft 3 under the magnetic repulsion of the outer magnetic ring 1. In the hole, keep the locked state; and after the key is inserted into the keyhole, because each section magnet 6 on the key cylinder is repulsed with the same pole of the magnetic column in each flat ring column, and the repulsive force is greater than the distance between the magnetic column and the outer magnetic ring. The magnetic repulsion between them pushes each magnetic column outward away from the slot on the drive shaft, unlocking the lock cylinder.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within range.

Claims (4)

1. a magnetic lock, this magnetic lock comprises lock body and key (4), described lock body comprises outer magnetic ring (1), lock core (2), power transmission shaft (3) from outside to inside; It is characterized in that: described outer magnetic ring cover (1) is in lock core (2) outside, and described lock core (2) is circular column, be set in described power transmission shaft (3) outside; The lock core of described post ringwise (2) is divided into N(N>1 vertically) individual flat annulated column (21), in each flat annulated column (21), radially offer slideway (20), and the direction of the slideway (20) in each flat annulated column (21) is not quite identical; In slideway described in each (20), be respectively equipped with the magnetic posts (23) that can slide along slideway (20); Described magnetic posts (23) and outer magnetic ring (1) two like magnetic poles repel each other; On the periphery wall of described power transmission shaft (3), offer the slotted eye matching with magnetic posts described in each (23), inside has cylindricality keyhole, and the inwall of this keyhole is shaped with 2 above axially extended chutes; The keyhole of described key (4) shape and described power transmission shaft matches, and described key is divided into N the section corresponding with the individual flat annulated column (21) of N of described lock core vertically, is respectively equipped with a section magnet (6) described in each in section; Magnetic posts (23) homopolar-repulsion in each section magnet (6) and each flat annulated column (21), and this repulsion is greater than the magnetic repulsion between magnetic posts and outer magnetic ring.

2. magnetic lock according to claim 1, is characterized in that: between the adjacent sections magnet of described key (4), leave space.

3. magnetic lock according to claim 1, it is characterized in that: each section magnet (6) outer cover in described key (4) has magnetic layer (7), between section magnet (6) and magnetic layer (7), there is rubber to join, between adjacent magnetic layer, leave space, section magnet (6) and magnetic posts (23) two like magnetic poles repel each other.

4. magnetic lock according to claim 1, is characterized in that: described lock core (2) is divided into 8-12 flat annulated column vertically.