WO2020107975A1

WO2020107975A1 - One-way latch bolt device

Info

Publication number: WO2020107975A1
Application number: PCT/CN2019/103408
Authority: WO
Inventors: 张玉中
Original assignee: 一诺电器有限公司
Priority date: 2018-11-26
Filing date: 2019-08-29
Publication date: 2020-06-04
Also published as: CN209837910U

Abstract

A one-way latch bolt device, mounted inside a housing. The one-way latch bolt device comprises a head, a linkage member movably connected to the head, a guide block movably snap-connected to the head; the head comprises a rotating portion; the linkage member comprises a shaft lever movably connected to the rotating portion, so that the head can be rotated about the shaft lever; the guide block comprises a snap protrusion movably snap-connected to the rotating portion; when the snap protrusion is snap-connected to the rotating portion, the head is limited. The one-way latch bolt of this utility model can be rotated to retract into the housing, so that the lock cylinder can be arbitrarily selected to be mounted indoors or outdoors, and thus is convenient to use.

Description

One-way inclined tongue device

Technical field

The utility model relates to the field of lock cylinders, in particular to a one-way inclined tongue device used in lock cylinders.

Background technique

A key component in the lock cylinder of the lock is the "lock tongue". The "lock tongue" and the "lock hole" cooperate to realize the "closed door" and "open door" states. That is, the lock tongue is inserted into the lock hole to close the door, and the lock tongue is away from the lock hole to open the door.

The one-way oblique tongue is used as a specific implementation of the lock tongue, which can be locked by a variety of ways. The invention patent of Patent Publication No. CN107304641A discloses a ferrule device, including a ferrule portion, which is arranged on the door; a panel, combined A side surface of the ferrule portion; a latch, which can be led out from a side surface of the ferrule portion to which the panel is combined or introduced into the ferrule portion; a guide protrusion, formed on the latch; and Fixing the pin so that the lock bolt can be mounted to the ferrule portion.

However, such a one-way oblique tongue is not convenient for use, and the oblique tongue needs to be set indoor or outdoor, which brings great inconvenience to the installation work.

Utility model content

The problem to be solved by the utility model is how to make up for the above-mentioned defects of the prior art, and to provide a one-way inclined tongue device.

The technical problems of the utility model can be solved by the following technical solutions:

A one-way inclined tongue device is installed inside the housing. The one-way inclined tongue device includes a head, a linking member movably connected with the head, a guide block movably engaged with the head, the head The part includes a rotating part; the linking member includes a shaft movably connected to the rotating part, so that the head can rotate with the shaft as the shaft; the guide block includes a card position movably engaged with the rotating part Protrusion, when the locking protrusion is engaged with the rotating part, the head is limited.

Further, the rotating portion includes a head slot that can be used to receive the latching protrusion, and a top end of the head slot includes a shaft slot that is used to receive the shaft.

Further, the housing includes a square-shaped telescopic hole, and the rotating portion includes a shoulder portion whose length and width are greater than the telescopic hole; the shoulder portion prevents the head from fully extending out of the housing, and the When the head rotates, the shoulder may be a pivot of rotation.

Further, the rotating part includes a linking member accommodating groove for accommodating the linking member.

Further, the head portion includes a telescopic portion, and the telescopic portion is telescopic on the side of the casing.

Further, the housing includes a first guide groove in a long shape, and the linking member includes a first guide protrusion extending into the first guide groove, and the length of the first guide groove is greater than that of the first A guide protrusion makes the linkage only move linearly under the guidance of the first guide groove.

Further, the one-way inclined tongue device includes a spring, the housing includes a spring baffle, and the linking member includes a spring accommodating place; one end of the spring is accommodated in the spring accommodating place, and the other end is The spring baffle contacts, so that the link and the head always have a force away from the housing.

Further, the housing includes a second guide slot in the shape of a strip, the guide block includes a second guide protrusion extending into the second guide slot, and the length of the second guide slot is greater than that of the second The guide protrusion makes the guide block move linearly only under the guidance of the second guide groove.

Further, the one-way oblique tongue device includes a guide block lever, the guide block includes a lever groove; the head of the head of the guide block lever extends into the lever groove, when the guide When the block lever moves, the guide block moves accordingly.

Further, the housing includes a fixed column, and the guide block lever includes a fixed hole for accommodating the fixed column; under the action of external force, the guide block lever can rotate the fixed column as an axis.

Compared with the prior art, the beneficial effect achieved by the present invention is that the one-way oblique tongue can be rotatably retracted into the housing, so that the lock core can be arbitrarily installed indoors or outdoors, and is convenient to use.

BRIEF DESCRIPTION

1 is an exploded view of the overall appearance of a one-way inclined tongue device of the present invention;

2 is a schematic view of the appearance of the head of a one-way inclined tongue device of the present invention;

3 is a schematic view of the appearance of the link of a one-way inclined tongue device of the present invention;

4 is a schematic view of the appearance of a guide block of a one-way inclined tongue device of the present invention;

FIG. 5 is a schematic diagram of the head, the linking member and the casing when the door of the one-way oblique tongue device of the present invention is locked;

6 is a schematic diagram of the head, the linking member and the housing during the telescoping of the head of the unidirectional inclined tongue device of the present invention;

7 is a schematic diagram of the head, the linking member and the housing when the head of the one-way oblique tongue device of the present invention is retracted into the housing;

8 is a schematic view of a door opening state of a one-way inclined tongue device of the present invention;

9 is a schematic view of another angle of the door opening state of a one-way inclined tongue device of the present invention;

10 is a top view of the door opening state of a one-way inclined tongue device of the present invention;

11 is a plan view of the lock door state of a one-way inclined tongue device of the present invention;

12 is a hidden plan view of a part of the structure of the lock door state of a one-way inclined tongue device of the present invention.

Number in the figure

Head 1, telescopic part 11, flat surface 111, inclined surface 112,

The rotating part 12, the shoulder 121, the head clamping groove 122, the shaft groove 123, the linking member accommodating groove 124,

Linkage 2, shaft 21, first guide projection 22, spring receiving hole 23,

Spring 3,

The guide block 4, the locking protrusion 41, the second guide protrusion 42, the lever groove 43,

Guide block lever 5, lever head 51, fixing hole 52,

The casing 6, the telescopic hole 61, the first guide groove 62, the baffle 63, the baffle protrusion 631, the fixing post 64, and the second guide protrusion 65.

detailed description

Hereinafter, the present invention will be further described based on preferred embodiments and with reference to the drawings.

In addition, in order to facilitate understanding, various components on the drawings are enlarged (thick) or reduced (thin), but this approach is not intended to limit the protection scope of the present invention.

Words in the singular form also include the plural meaning and vice versa

The vocabulary in this specification is used to explain the embodiments of the utility model, but it is not intended to limit the utility model.

In order to distinguish different units, the first, second and other words are used in this specification, but these will not be limited by the order of manufacture, and the names may be different in the detailed description of the utility model and the claims.

For the description of the smart lock body of the present invention, for convenience, the approximate standard of up, down, left, and right directions is specified with reference to FIG. 11, with the face of the smart lock body as viewed in FIG. On the left side, the direction of the front view shall prevail, and the direction of gravity action shall be downward. If there is no special requirement in the detailed description of the invention related to other drawings and the claims, the direction shall be determined according to this method.

When the door body realizes the function of locking the door, it is usually necessary to install the lock core inside the door body, and set a keyhole on the door frame, so that the lock tongue in the lock core extends out of the lock core and extends into the keyhole to lock. The unidirectional oblique tongue device described in the present invention is a kind of lock tongue. The unidirectional oblique tongue device according to the present invention will be described in detail below with reference to the drawings.

Please refer to FIG. 1, the lock core is installed inside the door body, and an outer shell for protecting the inner structure of the lock core is provided on the outer side of the lock core. The slanting tongue device is also provided in the housing 6.

The one-way oblique tongue device includes a head 1, a link 2 movably connected to the head 1, a spring 3 supporting the head 1 and the link 2, a guide block 4 movably engaged with the head 1, and The guide block lever 5 connected to the guide block 4.

The housing 6 includes a telescopic hole 61, a first guide groove 62 perpendicular to the telescopic hole, a baffle 63, a fixed post 64, and a second guide protrusion 65 parallel to the telescopic hole 61. The baffle 63 is provided with baffle protrusions 631 having a diameter smaller than that of the spring 3.

The guide block lever 5 includes a lever head 51 connected to the guide block 4 and a fixing hole 52 for accommodating the fixing column 64. After connection, under the action of external force, the guide block lever 5 can rotate around the fixed post 64 as an axis.

Please refer to FIG. 1 and FIG. 2. The head 1 includes a telescopic portion 11 that can telescope in the telescopic hole 61, and a rotating portion 12 that contacts the link 2 and the guide block 4.

The retractable portion 11 includes a plane 111 perpendicular to the retractable hole 61 when the door is locked, and a slope 112 at a certain angle to the plane 111.

The rotating part 12 includes a shoulder 121 having a length and width larger than the telescopic hole 61, and a linking member accommodating groove 124 for accommodating the linking member 2, the head 121 is provided with a head slot 122 and a head slot 122 The top end is provided with a shaft groove 123.

1 and 3, the link 2 includes a shaft 21 accommodated in the shaft groove 123, a first guide protrusion 22 accommodated in the first guide groove 62, and a spring accommodation accommodating the spring 3孔23.

After being connected, the head 1 can rotate around the shaft 21.

The length of the first guide groove 62 is greater than that of the first guide protrusion 22, and the width of the two is the same. When the first guide protrusion 22 slides in the first guide groove, the linking member 2 can only be within the length of the first guide groove 62 Linear movement in the direction, that is, the link 2 can only move linearly in the direction perpendicular to the telescopic hole 61.

Continuing to refer to FIG. 1, FIG. 3, and FIG. 6 to FIG. 12, one end of the spring 3 is accommodated in the spring accommodating hole 23, and the other end is in contact with the spring baffle 63. The spring baffle 63 is provided with a , Baffle protrusion 631 with a diameter smaller than the diameter of the spring 3. Since the spring baffle 63 is fixedly connected to the housing 1, under the natural tension of the spring 3, the spring 3 always has a force to move the link 2 and the head 1 movably connected to the link 2 away from the housing 6, Since the link 2 can only move linearly in the direction perpendicular to the telescopic hole 61, the tension of the spring 3 always causes the link 2 and the head 1 to extend out of the housing 6 in the direction perpendicular to the telescopic hole 61 force.

Please refer to FIG. 1, FIG. 4, and FIG. 6 to FIG. 12, the guiding block 4 is provided with a locking protrusion 41 that can extend into the head clamping groove 122, and a second guiding protrusion 42 accommodated in the second guiding groove 65 , And the lever groove 43 which accommodates the lever head 51.

In the present utility model, the head 51 of the lever is fixedly connected to the lever groove 43. Therefore, the guide block 4 and the guide block lever 5 are fixedly connected. When the guide block lever 5 rotates, the guide block 4 rotates accordingly.

The length of the second guide groove 65 is greater than that of the second guide protrusion 42 and the width is the same. When the second guide protrusion 42 slides in the second guide groove 65, the guide block 4 can only be at the length of the second guide groove 65 Linear movement in the direction, that is, the guide block 4 can only linearly move in a direction parallel to the telescopic hole 61.

Please refer to FIG. 6 to FIG. 12. In a natural state, the natural tension of the spring 3 keeps the head 1 and the link 2 away from the housing 6 at all times, the telescopic portion 11 extends out of the telescopic hole 61, and the shoulder 121 is stuck in the telescopic hole 61 Inside.

When the door needs to be locked, the handle or external force drives the guide block lever 5 to rotate counterclockwise around the fixed column 64, which in turn drives the guide block 4 to rotate. Since the guide block 4 can only move linearly in the length direction of the second guide groove 65, After the guide block 4 moves downward, the latching protrusion 41 snaps into the head slot 122 of the rotating part 12, at this time, the rotating part 12 cannot rotate and cannot move into the housing 6, and the head 1 is locked to achieve locking door.

When the door needs to be opened, the handle or external force drives the guide block lever 5 to rotate clockwise around the fixed column 64, and the guide block 4 moves upward away from the head slot 122. At this time, the limit of the head 1 disappears, and the head 1 The compression spring 3 can cause the head 1 to retract into the inside of the housing 1.

When the head 1 is retracted into the housing 1, the head 1 takes the shaft 21 as the axis and the shoulder 121 as the fulcrum, and can be rotated in the front and rear directions, so that the door can be opened in any direction. effect.

At this time, the head 1 rotates, driving the link 2 to press the spring 3, and under the action of the second guide protrusion 22, the head 1 can only be retracted inside the housing 6 in the direction perpendicular to the telescopic hole 61, and can be completely Retracted inside the housing 6. The door can be opened.

The specific implementation of the utility model has been described in detail above. For those skilled in the art, without departing from the principle of the utility model, a number of improvements and modifications can be made to the utility model. These improvements and modifications also It belongs to the protection scope of the claims of the utility model.

Claims

A one-way oblique tongue device, installed inside the housing (6), characterized by:

The one-way oblique tongue device includes a head (1), a link (2) movably connected to the head (1), and a guide block (4) movably engaged with the head (1), the The head (1) includes a rotating part (12);

The linking member (2) includes a shaft (21) movably connected to the rotating part (12), so that the head (1) can rotate with the shaft (21) as an axis;

The guide block (4) includes a latching protrusion (41) that is movably engaged with the rotating portion (12). When the latching protrusion (41) is engaged with the rotating portion (12), The head (1) is limited.
The one-way inclined tongue device according to claim 1, wherein:

The rotating part (12) includes a head clamping groove (122) that can be used for accommodating the clamping protrusion (41), and a top end of the head clamping groove (122) includes an accommodating shaft The shaft groove (123) of (21).
The one-way inclined tongue device according to claim 1, wherein:

The housing (6) includes a square-shaped telescopic hole (61), and the rotating portion (12) includes a shoulder (121) whose length and width are larger than the telescopic hole (61);

The shoulder (121) prevents the head (1) from completely protruding out of the housing (6), and when the head (1) rotates, the shoulder (121) may be a rotation fulcrum.
The one-way inclined tongue device according to claim 1, wherein:

The rotating part (12) includes a linking member accommodating groove (124) for accommodating the linking member (2).
The one-way inclined tongue device according to claim 1, wherein:

The head (1) includes a telescopic part (11), and the telescopic part (11) is telescopic on the side of the casing (6).
The one-way inclined tongue device according to claim 1, wherein:

The housing (6) includes an elongated first guide groove (62), and the linking member (2) includes a first guide protrusion (22) extending into the first guide groove (62) , The length of the first guide groove (62) is greater than that of the first guide protrusion (22), so that the linking member (2) can only be straight under the guidance of the first guide groove (62) motion.
The one-way inclined tongue device according to claim 1, wherein:

The one-way oblique tongue device includes a spring (3),

The housing (6) includes a spring baffle (63), and the linking member (2) includes a spring housing (23);

One end of the spring (3) is accommodated in the spring accommodating place (23), and the other end is in contact with the spring baffle (63), so that the linkage (2) and the head (1) There is a force away from the housing (6).
The one-way inclined tongue device according to claim 1, wherein:

The housing (6) includes an elongated second guide groove (65), and the guide block (4) includes a second guide protrusion (42) extending into the second guide groove (65), The length of the second guide groove (65) is greater than that of the second guide protrusion (42), so that the guide block (4) can only move linearly under the guidance of the second guide groove (65).
The one-way inclined tongue device according to claim 1, wherein:

The one-way oblique tongue device includes a guide block lever (5), and the guide block (4) includes a lever groove (43);

The head lever (51) of the guide block lever (5) extends into the lever groove (43). When the guide block lever (5) moves, the guide block (4) ) Moves with it.
The one-way inclined tongue device according to claim 9, characterized in that:

The housing (6) includes a fixing post (64), and the guide block lever (5) includes a fixing hole (52) for accommodating the fixing post (64);

Under the action of external force, the guide block lever (5) can rotate on the fixed column (64) as an axis.