CN211201440U - Back locking mechanism of magnet lock - Google Patents

Abstract

The utility model belongs to the technical field of door locks, in particular to a back lock mechanism of a magnet lock, which comprises a shell, wherein one side of the shell is connected with a panel, a lock tongue hole is arranged on the panel, a lock tongue capable of extending out or retracting into the lock tongue hole is arranged in the shell, the shell is provided with a first rotary column, the lock tongue is rotatablely connected on the first rotary column, the shell is also provided with a second rotary column, a rotatable lock tongue drive plate is sleeved on the second rotary column, the lock tongue comprises a rotary part sleeved on the first rotary column, the rotary part respectively extends to the upper side and the lower side to form a lock tongue main body and a trigger part, one side of the trigger part forms a limit step, the lock tongue drive plate comprises a drive plate main body sleeved on the second rotary column, the drive plate main body extends towards one side of the trigger part to form a back lock drive block, the outer end of the back lock drive block is formed with an inner, and a reverse locking error plug contact is formed on one side of the limiting step facing the plug contact.

Description

Back locking mechanism of magnet lock

Technical Field

The invention belongs to the technical field of door locks, and particularly relates to a back locking mechanism of a magnet lock.

Background

The magnetic lock sucks the lock tongue of the lock body into the buckle box through magnetic field force, the magnet is arranged in the buckle box of the door frame under the general condition, when the door is closed, the lock body in the door is aligned with the buckle box on the door frame, and the magnet in the buckle box is mutually attracted with the lock tongue in the lock body or the magnet in the lock tongue, so that the lock tongue is sucked into the lock tongue groove of the buckle box to close the door.

The back locking of magnet lock is through the rotation to the spring bolt and realize that in current part magnet lock, its back locking structure is complicated to under the condition of spring bolt withdrawal lockhole, if the operation of back locking has been carried out because misoperation, in the last moment of closing the door, because the spring bolt receives the attraction of magnetic force and can pop out the spring bolt hole, in case the spring bolt pops out can lead to the lock body back locking of magnet lock because of the maloperation before, make next time open the door become troublesome.

Disclosure of Invention

The invention aims at the problems and provides a back locking mechanism of a magnet lock, which has a simple structure, and can not generate the misoperation of back locking under the condition that a bolt retracts into a lock body, so that the misoperation of back locking can be generated after a door is closed.

The purpose of the invention is realized as follows:

a back locking mechanism of a magnet lock comprises a shell, a panel is connected with one side of the shell, a bolt hole is arranged on the panel, a lock tongue capable of extending out or retracting into the lock tongue hole is arranged in the shell, a first rotating column is arranged on the shell, the lock tongue is rotationally connected with the first rotary column, the shell is also provided with a second rotary column, a rotatable lock tongue drive plate is sleeved on the second rotary column, the lock tongue comprises a rotating part sleeved on the first rotating column, the rotating part respectively extends to the upper side and the lower side to form a lock tongue main body and a triggering part, one side of the triggering part forms a limiting step, the lock tongue drive plate comprises a drive plate main body sleeved on the second rotary column, the drive plate main body extends towards one side of the trigger part to form a back locking drive block, an inner inserted contact piece matched with the limiting step is formed at the outer end of the back locking drive block, a lock cylinder shifting part is formed on the periphery of the drive plate main body, and a reverse locking misplug contact plate is formed on one side of the limiting step facing the inner plug contact plate;

when the lock tongue is in a state of extending out of the lock tongue hole, the driving plate main body is driven by the lock core poking part to enable the internal contact piece of the back locking poking block to abut against the limiting step of the triggering part to form back locking of the lock tongue;

when the lock tongue is in a state of retracting into the lock tongue hole, the driving plate main body is driven by the lock cylinder stirring part to enable the internal inserted contact of the back locking stirring block to move towards the limiting step, and the back locking error contact is blocked on the movement path of the internal inserted contact.

Furthermore, the reverse locking shifting block and the reverse locking misplug contact piece are mutually staggered in the vertical direction.

Furthermore, the weight of the lower end part of the bolt rotating part is greater than that of the upper end part of the bolt rotating part, so that the bolt has the tendency of retracting into the bolt hole under the state without external force application.

Furthermore, a first limiting end face is formed on one side, facing the panel, of the rotating part.

Furthermore, a second limiting end face is formed on one side, facing the panel, of the rotating part.

Furthermore, the lock cylinder poking part comprises an inserted poking point and an unlocking contact which are formed on the periphery of the poking disc main body, and a lock cylinder extending groove is formed between the inserted poking point and the unlocking contact.

Compared with the prior art, the invention has the outstanding and beneficial technical effects that:

the magnetic lock has the advantages of simple internal structure, small number of parts, low manufacturing cost and high assembly efficiency, and can avoid the occurrence of the situation of back locking caused by error operation under the situation that the lock tongue does not pop out the lock tongue hole.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is an external structural view of a lock body.

Fig. 2 is a side view of the lock body.

Fig. 3 is a first schematic structural diagram of a lock bolt in a lock body without a reverse locking misplug contact.

FIG. 4 is a schematic diagram of a lock body with a latch having no reverse locking misplugging contact piece

Fig. 5 is a schematic structural view of a lock tongue with a reverse locking misplug in a lock body.

1-housing, 11-first rotary column, 12-second rotary column, 13-square core hole, 14-limit column, 2-panel, 21-bolt hole, 3-bolt, 31-rotary part, 32-trigger part, 33-bolt body, 34-limit step, 35-first limit end face, 36-second limit end face, 37-reverse lock mis-insertion contact piece, 4-bolt dial, 41-dial body, 42-first bolt dial block, 43-reverse lock dial block, 431-inner insertion contact piece, 44-lock core dial part, 441-inner insertion dial point, 442-unlocking contact, 443-lock core extension slot and 5-first torsion spring.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

As shown in fig. 1 and 2, the lock body has an exterior which is not different from the structure of the existing lock body, and includes a housing 1, a panel 2 connected to the exterior of the housing 1, and a latch hole 21 provided in the panel 2, wherein the latch hole 21 has a latch 3 therein which can be extended or retracted.

Specifically, as shown in fig. 3, fig. 3 is a schematic structural diagram illustrating a situation when the latch bolt 3 does not have the anti-lock mis-insertion contact 37, when the latch bolt dial 4 is driven by the lock cylinder dial 44 to rotate clockwise, the anti-lock dial 43 on the latch bolt dial 4 rotates clockwise at the same time, the inner insertion contact 431 of the anti-lock dial 43 will hit the limit step 34 of the trigger portion 32 of the latch bolt 3, but at this time, because the latch bolt 3 is not attracted by the magnetic force and is in a state of being retracted into the latch bolt hole, the inner insertion contact 431 on the anti-lock dial 43 will not fit the limit step 34 of the trigger portion 32 of the latch bolt 3, thereby forming the anti-lock.

On the basis, when the door is closed, because the bolt 3 is attracted by the magnet, the bolt can pop out of the bolt hole 21, at this time, the bolt 3 rotates counterclockwise, and the position of the limit step 34 on the trigger part 32 of the bolt 3 changes, as can be seen from fig. 4, the housing 1 is further provided with the first torsion spring 5, the first torsion spring 5 is connected to the first bolt dial 42 of the bolt dial 4, when the inner contact 431 on the bolt dial 4 abuts against the outer side of the limit step 34 of the bolt 3, even though the lock core does not act on the lock core dial 44, the first torsion spring 5 already makes the bolt dial 4 have a tendency of rotating clockwise, mainly depending on the elastic force of the first torsion spring 5, therefore, after the position of the limit step 34 on the trigger part 32 of the bolt 3 changes, depending on the acting force of the first torsion spring 5, the inner contact 431 on the counter lock dial 43 can continue to move to the inner side of the limit step 34, and fitting is formed with the magnetic lock, so that a user can find that the magnetic lock is in an unlocking state when opening the door next time, and the door can be opened only by releasing the unlocking state, so that the door opening step becomes troublesome.

As shown in fig. 5, a reverse locking mis-plugging contact 37 is arranged at the lower end of the limit step 34, so that when the latch 3 is in a state of retracting into the latch hole 21, the inner contact 431 of the reverse locking toggle block 43 rotates, the inner contact is blocked on the moving path by the reverse locking mis-plugging contact 37, and because the rotation amplitude of the latch dial 4 is relatively small, the first torsion spring 5 does not change the direction of the acting force due to the position change of the first latch toggle block 42, so that the latch dial 4 has a tendency of counterclockwise rotation by the first torsion spring 5, and thus, in a state of retracting the latch 3 into the latch hole 21, the inner contact 431 on the reverse locking toggle block 43 does not form a mis-plugging reverse locking state with the limit step 34 of the trigger part 32 of the latch 3.

Further, the reverse lock shifting block 43 and the reverse lock misplug contact 37 are staggered in the vertical direction, when the lock tongue 3 is in a state of popping out the lock tongue hole 21, and the reverse lock shifting block 43 is prevented from rotating, the reverse lock shifting block 43 and the reverse lock misplug contact 37 interfere with each other to cause that the reverse lock shifting block 43 cannot drive the inner plug contact 431 to rotate to the limit step 34 of the trigger part 32 of the lock tongue 3.

As shown in fig. 3 to 5, the weight of the lower end of the rotating portion 31 of the locking bolt 3 is greater than the weight of the upper end of the rotating portion 31 of the locking bolt 3, so that the locking bolt 3 has a tendency to retract into the locking bolt hole 21 in a state where no external force is applied. Thus, when the door is opened, i.e., when the latch bolt 3 is not attracted by the magnetic force, the latch bolt 3 is automatically retracted into the latch bolt hole 21 by gravity.

As shown in fig. 3-5, a first limiting end surface 35 and a second limiting end surface 36 are provided on one side of the rotating portion 31 of the locking bolt 3 facing the outer end, the first limiting end surface 35 realizes the stroke limitation of clockwise rotation of the locking bolt 3, that is, when the locking bolt 3 retracts into the locking bolt hole 21, the first limiting end surface 35 can abut against the inner side of the panel 2 to make the locking bolt 3 incapable of further rotating, and similarly, the second limiting end surface 36 realizes the stroke limitation of counterclockwise rotation of the locking bolt 3, that is, when the locking bolt 3 extends out of the locking bolt hole 21 under the magnetic attraction, the second limiting end surface 36 abuts against the inner side of the panel 2 to make the locking bolt 3 incapable of further rotating.

As shown in fig. 3 to 5, the key cylinder striking portion 44 includes an inserted striking point 441 and an unlocking contact 442 formed from the outer periphery of the dial body 41, and a key cylinder insertion groove 443 is formed between the inserted striking point 441 and the unlocking contact 442.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims (6)

1. The anti-lock mechanism of the magnet lock comprises a shell, a panel is connected to one side of the shell, a lock tongue hole is formed in the panel, a lock tongue capable of extending out of or retracting into the lock tongue hole is arranged in the shell, and the anti-lock mechanism is characterized in that a first rotary column is arranged on the shell, the lock tongue is rotatably connected to the first rotary column, a second rotary column is further arranged on the shell, a rotatable lock tongue driving plate is sleeved on the second rotary column, the lock tongue comprises a rotating part sleeved on the first rotary column, the rotating part respectively extends towards the upper side and the lower side to form a lock tongue main body and a triggering part, a limiting step is formed on one side of the triggering part, the lock tongue driving plate comprises a driving plate main body sleeved on the second rotary column, the driving plate main body extends towards one side of the triggering part to form an anti-lock shifting block, an inner inserting contact plate matched with the limiting step, a reverse locking error plug contact is formed on one side of the limiting step facing the plug contact;

when the lock tongue is in a state of extending out of the lock tongue hole, the driving plate main body is driven by the lock core poking part to enable the internal contact piece of the back locking poking block to abut against the limiting step of the triggering part to form back locking of the lock tongue;

when the lock tongue is in a state of retracting into the lock tongue hole, the driving plate main body is driven by the lock cylinder stirring part to enable the internal inserted contact of the back locking stirring block to move towards the limiting step, and the back locking error contact is blocked on the movement path of the internal inserted contact.

2. An anti-lock mechanism of a magnet lock according to claim 1, wherein the anti-lock paddle and the anti-lock mis-insert contact are vertically offset from each other.

3. The backlocking mechanism of a magnet lock according to claim 1, wherein the weight of the lower end of the bolt rotation portion is greater than the weight of the upper end of the bolt rotation portion, so that the bolt tends to retract into the bolt hole in a state where no external force is applied.

4. A lock mechanism of a magnet lock according to claim 1 or 3, wherein a first limit end face is formed on a side of the turning portion facing the panel.

5. A lock mechanism of a magnet lock according to claim 1 or 3, wherein a second limit end face is formed on a side of the turning portion facing the panel.

6. The backlocking mechanism of a magnet lock according to claim 1, wherein the lock cylinder striking part comprises an inserted striking point and an unlocking contact formed from the periphery of the dial main body, and a lock cylinder insertion slot is formed between the inserted striking point and the unlocking contact.

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