CN210122849U

CN210122849U - Quick-rebound inclined bolt lock body

Info

Publication number: CN210122849U
Application number: CN201822252749.1U
Authority: CN
Inventors: 林政�
Original assignee: Shenzhen Hongbo Hui Technology Co Ltd
Current assignee: Shenzhen Hongbo Hui Technology Co Ltd
Priority date: 2018-12-29
Filing date: 2018-12-29
Publication date: 2020-03-03
Anticipated expiration: 2028-12-29

Abstract

The utility model discloses a quick kick-back oblique tongue lock body, including lock body and oblique tongue, there is oblique tongue hole on the lock body, and oblique tongue installs movably in the lock body and stretches out or withdrawal oblique tongue hole, still includes gear, torsional spring, post core, the post core assembles in the center of gear and is fixed in the lock body, and torsional spring connects between post core and gear, and corresponding oblique tongue lateral part is equipped with the spur rack, and the gear meshes with this spur rack mutually. The utility model discloses make the latch bolt gather elastic potential energy when retracting latch bolt hole by the setting of torsional spring, after the couple of hook release latch bolt, this torsional spring makes elastic potential energy turn into the kinetic energy that the latch bolt stretches out fast in the twinkling of an eye. And the gear is matched with the straight rack, so that the extension of the latch bolt moves on a straight line, the gear can enhance the torsion, and the latch bolt can be quickly ejected only by a small torsion spring and is smoother to eject without a pause phenomenon.

Description

Quick-rebound inclined bolt lock body

Technical Field

The utility model belongs to the technical field of the lock technique and specifically relates to indicate a quick kick-back oblique tongue lock body.

Background

The latch bolt is a component which is matched with the door frame in the lockset, automatically pops out when the door is closed, and retracts under the driving of a lock core or a handle so as to realize the opening function. The conventional lock generally has a latch tongue, which is matched with a spring, and can be referred to application No. CN201120558223.1, application no: CN201220499935.5 and application No.: CN201720664895.8 related patent.

However, the conventional latch bolt structure requires a large spring, and the spring has a large diameter and a strong elastic force, so that a large force is required to pull the latch bolt to retract during unlocking, which causes inconvenience to children and the elderly, and may twist off the key.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model discloses to the disappearance that prior art exists, its main objective provides a quick kick-back oblique tongue lock body, and it only needs little torsional spring just can make the oblique tongue pop out the quick recovery lock normality in the twinkling of an eye after unblanking, guarantees that the oblique tongue stretches out and the withdrawal motion is smooth and easy, and no card pause phenomenon to overcome prior art's not enough.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a quick kick-back oblique tongue lock body, includes lock body and oblique tongue, there is oblique tongue hole on the lock body, and oblique tongue installs movably in the lock body and stretches out or retract oblique tongue hole, still includes gear, torsional spring, post core, the post core assembles in the center of gear and is fixed in the lock body, and torsional spring connects between post core and gear, and corresponding oblique tongue lateral part is equipped with the spur rack, and the gear meshes with this spur rack mutually.

As a preferable scheme, the center of the gear is provided with a shaft hole, the shaft hole is uniformly provided with inner stop blocks, and an arc-shaped movable groove is formed between every two adjacent inner stop blocks; the periphery of the column core is uniformly provided with outer stop blocks, the outer stop blocks can move within the angle range defined by the arc-shaped movable grooves, and the inner stop blocks and the outer stop blocks can be blocked mutually.

Preferably, the outer side of the column core is provided with a crack, the surface of the gear is provided with an insertion hole, one end of the torsion spring is inserted into the crack, and the other end of the torsion spring is inserted into the insertion hole for fixation.

As a preferred scheme, the latch bolt is provided with a long through hole, a limiting column penetrates into the through hole, and the limiting column is fixed on the lock body.

As a preferred scheme, a hook is arranged on the side wall of the latch bolt.

As a preferable scheme, the hook and the straight rack are respectively positioned on the left side wall surface and the right side wall surface of the latch bolt.

Compared with the prior art, the utility model obvious advantage and beneficial effect have, particularly, can know by above-mentioned technical scheme, it has mainly designed gear, torsional spring, post core, the post core assembles in the center of gear and is fixed in the lock body, and torsional spring connects between post core and gear, and corresponding oblique tongue lateral part is equipped with the spur rack, and the gear meshes with this spur rack mutually. The arrangement of the torsion spring enables the inclined tongue to accumulate elastic potential energy when retracting into the inclined tongue hole, and after the hook piece releases the hook of the inclined tongue, the torsion spring enables the elastic potential energy to be converted into kinetic energy for instantly and rapidly extending the inclined tongue. And the gear is matched with the straight rack, so that the extending of the oblique tongue moves on a straight line, and the gear can enhance the torsion, so that the oblique tongue can be ejected more smoothly without a pause phenomenon.

To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Drawings

Fig. 1 is a schematic view of the overall structure of the embodiment of the present invention.

Fig. 2-1 is a schematic view of the embodiment of the present invention showing the locking state of the latch bolt.

Fig. 2-2 is a schematic view of the latch bolt unlocking state according to the embodiment of the present invention.

Fig. 3 is an exploded view of an embodiment of the present invention.

Fig. 4 is a front view of an assembly of the gear, the torsion spring and the column core according to the embodiment of the present invention.

Fig. 5 is a front view of a gear according to an embodiment of the present invention.

Fig. 6 is a mounting structure diagram of an assembly of the gear, the torsion spring and the column core according to the embodiment of the present invention.

The attached drawings indicate the following:

10. lock body 20, oblique bolt

21. Spur rack 22, through hole

23. Hook 30 and gear

31. Shaft hole 32, inner stop

33. Arc movable groove 34 and jack

40. Torsion spring 50, column core

51. Outer stop 52, crack

60. And (4) hook elements.

Detailed Description

Referring to fig. 1 to 6, which show the specific structure of the preferred embodiment of the present invention, a lock body 10 with a quick rebounding latch bolt comprises a lock body 10 and a latch bolt 20, wherein the lock body 10 has a latch bolt hole, and the latch bolt 20 is installed in the lock body 10 and can movably extend out of or retract into the latch bolt hole. The lock body is characterized by further comprising a gear 30, a torsion spring 40 and a column core 50, wherein the column core 50 is assembled in the center of the gear 30 and fixed on the lock body 10, the torsion spring 40 is connected between the column core 50 and the gear 30, a spur rack 21 is arranged on the side portion of the corresponding latch bolt 20, and the gear 30 is meshed with the spur rack 21. The torsion spring 40 is arranged to enable the latch bolt 20 to accumulate elastic potential energy when retracting the latch bolt hole, and after the hook piece 60 releases the hook 23 of the latch bolt 20, the torsion spring 40 converts the elastic potential energy into kinetic energy for instantly and rapidly extending the latch bolt 20. The gear 30 is matched with the spur rack 21, so that the inclined tongue 20 extends out and moves on a straight line, and the gear 30 can enhance the torsion, so that the inclined tongue 20 can be ejected more smoothly without a pause phenomenon.

The gear 30 is provided with a shaft hole 31 at the center, inner stoppers 32 are uniformly arranged on the shaft hole 31, and an arc-shaped movable groove 33 is formed between two adjacent inner stoppers 32. The outer stopper 51 is uniformly disposed on the outer circumference of the core 50, the outer stopper 51 can move within the angle range defined by the arc-shaped moving groove 33, and the inner stopper 32 and the outer stopper 51 can be stopped with each other. By designing the inner stopper 32 and the outer stopper 51, the rotation range of the gear 30 is limited, so that the distance for the latch tongue 20 to retract into the lock hole is also limited, and the gear 30 and the spur rack 21 cannot be disengaged from each other.

The outer side of the core 50 has a slot 52, the surface of the gear 30 has an insertion hole 34, one end of the torsion spring 40 is inserted into the slot 52, and the other end is inserted into the insertion hole 34 for fixing. With this kind of mounting means, easy dismounting. The latch bolt 20 is provided with a long through hole 22, and a limit column penetrates into the through hole 22 and is fixed on the lock body 10. The through hole 22 of the limit post is configured so that the latch tongue 20 can extend and retract along a set straight line trajectory.

In addition, the latch tongue 20 is provided with a hook 23 on a side wall thereof, and the hook 23 and the hook 60 are hooked with each other, but the hook 60 can be touched to be separated from the hook 23, so that the latch tongue 20 can be released. In this embodiment, the hook 23 and the spur rack 21 are respectively located on the left side wall surface and the right side wall surface of the latch 20.

The utility model discloses a quick kick-back oblique tongue lock body 10's theory of operation as follows:

as shown in fig. 2-1, the latch tongue 20 normally extends out of the latch tongue hole. As shown in fig. 2-2, when locking, the hook 23 and the hook 60 are hooked together, and the hook 60 pulls the latch bolt 20 to move downward, so that the latch bolt 20 retracts into the latch bolt hole, thereby unlocking. At this time, the torsion spring 40 accumulates elastic potential energy. When the hook piece 60 is pulled to be disengaged from the hook 23, the torsion spring 40 converts the elastic potential energy into the kinetic energy of the gear 30, and the gear 30 rotates to drive the latch bolt 20 to extend out of the latch bolt hole upwards, so as to restore the normal state of the lock.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a quick resilience oblique tongue lock body, includes lock body and oblique tongue, there is oblique tongue hole on the lock body, and the oblique tongue is installed movably in the lock body and is stretched out or retract oblique tongue hole, its characterized in that: the lock body is characterized by further comprising a gear, a torsion spring and a column core, wherein the column core is assembled in the center of the gear and fixed on the lock body, the torsion spring is connected between the column core and the gear, a spur rack is arranged on the side portion of the corresponding oblique tongue, and the gear is meshed with the spur rack.

2. The quick rebound latch lock of claim 1, wherein: the center of the gear is provided with a shaft hole, the shaft hole is uniformly provided with inner stop blocks, and an arc-shaped movable groove is formed between every two adjacent inner stop blocks; the periphery of the column core is uniformly provided with outer stop blocks, the outer stop blocks can move within the angle range defined by the arc-shaped movable grooves, and the inner stop blocks and the outer stop blocks can be blocked mutually.

3. The quick rebound latch lock of claim 1, wherein: the outer side of the column core is provided with a crack, the surface of the gear is provided with an insertion hole, one end of the torsion spring is inserted into the crack, and the other end of the torsion spring is inserted into the insertion hole for fixation.

4. The quick rebound latch lock of claim 1, wherein: the oblique bolt is provided with a long through hole, a limiting column penetrates into the through hole, and the limiting column is fixed on the lock body.

5. The quick rebound latch lock of claim 1, wherein: and a hook is arranged on the side wall of the latch bolt.

6. The quick rebound latch lock of claim 5, wherein: the hook and the straight rack are respectively positioned on the left side wall surface and the right side wall surface of the latch bolt.