CN221143878U

CN221143878U - Counter-locking mechanism of lockset

Info

Publication number: CN221143878U
Application number: CN202323199756.7U
Authority: CN
Inventors: 吴培丰
Original assignee: Zhejiang Haman Digital Technology Co ltd
Current assignee: Zhejiang Haman Digital Technology Co ltd
Priority date: 2023-11-27
Filing date: 2023-11-27
Publication date: 2024-06-14
Anticipated expiration: 2033-11-27

Abstract

The utility model discloses a counter-locking mechanism of a lockset, which comprises a lock shell, wherein a bracket is arranged in the lock shell; the bracket is provided with a mounting hole, and the inner wall of the mounting hole is provided with a limit groove; the lock is characterized in that a knob is further arranged on the lock shell, and after the working part of the knob is inserted into the mounting hole, the knob is connected with the limiting groove through a limiting pin arranged on the working part, so that the rotation of the knob is limited. When the limiting pin on the working part slides along the limiting groove to the inside of the lock shell until the limiting pin is separated from the limiting groove, the knob can rotate; when the knob after rotation is reset, the limiting groove is matched with the limiting pin again to limit the continuous rotation of the knob, so that the phenomenon of knob rotation caused by false touch can be overcome. Because the knob is stable and reliable in position under the action of the limiting pin and the limiting groove, the locking action or unlocking action of the lock core linked with the knob can be permanently and reliably ensured, and the problem that the lock core is opened or closed by mistake is effectively avoided.

Description

Counter-locking mechanism of lockset

Technical Field

The utility model relates to the technical field of locks, in particular to a counter-locking mechanism of a lock.

Background

In the prior art with the patent number of CN213710688U, the first through hole is arranged on the locking surface, and then the clamping position on the knob assembly is connected with the clamping groove in the first through hole, so that the door can be prevented from being locked by mistake by children indoors, and the locking difficulty is increased; meanwhile, the problems of shaking of the button, no hand feeling and the like are solved, the safety lock is ensured, and the like, but the through hole is arranged on the lock surface, so that the thickness of the lock surface is required to be high, the lock surface is directly arranged, and the whole lock surface needs to be replaced after the aperture of the through hole is changed.

Disclosure of utility model

The present utility model is directed to a locking mechanism for a lock, so as to solve the above-mentioned problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a counter lock mechanism of a lockset comprises a lock shell arranged on a door body, wherein a bracket is arranged in the lock shell; the bracket is provided with a mounting hole, and the inner wall of the mounting hole is provided with a limit groove; the lock shell is far away from one side of the bracket is also provided with a knob, and after the working part of the knob is inserted into the mounting hole, the knob is connected with the limiting groove through a limiting pin arranged on the working part so as to limit the rotation of the knob.

As a preferable technical scheme of the utility model: the limiting groove is arranged on the inner wall surface of the mounting hole in a cross shape, and the limiting pin is arranged on the working part in a cross shape.

As a preferable technical scheme of the utility model: the lock is characterized in that a reset piece is further arranged in the lock shell, and the knob is driven to slide to the outside of the lock shell through the reset piece.

As a preferable technical scheme of the utility model: the working part is also provided with a backstop piece, and the backstop piece is connected with the working part to prevent the outward sliding stroke of the working part.

As a preferable technical scheme of the utility model: the working part is also provided with an annular groove for installing the retaining piece.

As a preferable technical scheme of the utility model: the working part is also provided with a baffle, and one surface of the baffle, which is far away from the working part, is provided with a transverse plate.

By adopting the technical scheme, the utility model has the beneficial effects that: 1. when the back lock is needed, the knob is pushed to the inside of the lock shell, at the moment, the limiting pin on the working part slides to the inside of the lock shell along the limiting groove until the limiting pin is separated from the limiting groove, so that the knob rotates, when the knob rotates to a designated position, the knob is pulled to reset, and at the moment, the limiting groove is matched with the limiting pin again, so that the knob can be limited to continue to rotate, and after the knob rotates, the position is stable and reliable, and the phenomenon that the knob rotates due to false touch is reduced. Based on the locking mechanism, the knob is stable and reliable in position under the action of the limiting pin and the limiting groove, so that the locking action or unlocking action of the lock core linked with the knob can be permanently and reliably ensured, and the problem that the lock core is opened or closed by mistake is effectively avoided.

2. Because this equipment utilizes the support to be connected with the lock shell to set up the spacing groove on the support, so can also reduce the requirement to the lock shell wall thickness and reduce the processing degree of difficulty to the lock shell when preventing to open by mistake or close by mistake, especially, in case the spacing groove appears wearing and tearing phenomenon in long-term use and can directly change the support, and then reduce the maintenance cost of tool to lock.

Drawings

FIG. 1 is a schematic diagram of the main structure of the present utility model;

FIG. 2 is an exploded view of the main structure of the present utility model;

FIG. 3 is a schematic view of the main structure of the knob of the present utility model;

fig. 4 is a schematic main structure of the bracket of the present utility model.

In the figure: 1. a lock case; 2. a knob; 21. a baffle; 22. a working section; 23. a limiting pin; 24. an annular groove; 25. a cross plate; 3. a reset member; 4. a retaining member; 5. a bracket; 6. a limit groove; 7. and (5) mounting holes.

Description of the embodiments

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model. In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "upper surface", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 1-4, an embodiment of the present utility model is provided: the back locking mechanism of the lockset comprises a lock shell 1 arranged on a door body, wherein a bracket 5 is arranged inside the lock shell 1; the bracket 5 is provided with a mounting hole 7, and the inner wall of the mounting hole 7 is provided with a limit groove 6; the lock case 1 is further provided with a knob 2 on a surface far away from the bracket 5, and after the working portion 22 of the knob 2 is inserted into the mounting hole 7, the working portion 22 is connected with the limiting groove 6 through a limiting pin 23 provided on the working portion 22, so as to limit the rotation of the knob 2.

To sum up, when the back locking is needed, the knob 2 is pushed to the inside of the lock case 1, at this time, the limiting pin 23 on the working portion 22 slides to the inside of the lock case 1 along the limiting groove 6 until the limiting pin 23 is separated from the limiting groove 6, so that the knob 2 rotates, when the knob 2 rotates to a designated position, the knob 2 is pulled to reset, at this time, the limiting groove 6 is matched with the limiting pin 23 again, so that the knob 2 can be limited to continue to rotate, and after the knob 2 rotates, the position is stable and reliable, so that the phenomenon of knob rotation caused by false touch is reduced. Based on the above, the knob 2 is stable and reliable in position under the action of the limiting pin 23 and the limiting groove 6, so that the locking action or unlocking action of the lock core linked with the knob 2 can be permanently and reliably ensured, and the problem that the lock core is opened or closed by mistake is effectively avoided.

Further, because the device utilizes the bracket 5 to be connected with the lock shell 1 and the limit groove 6 is arranged on the bracket 5, the requirement on the wall thickness of the lock shell 1 and the processing difficulty of the lock shell 1 can be reduced while the false opening or the false closing is prevented, and particularly, once the limit groove 6 is worn in long-term use, the bracket 5 can be directly replaced, so that the maintenance cost of the lockset is reduced.

In addition, in the scheme, the limit pin 23 and the limit groove 6 are stably matched, and meanwhile, the processing is simple and convenient, and the structure is simpler.

Further, since the limit groove 6 is formed in a cross shape on the inner wall surface of the mounting hole 7, and the limit pin 23 is formed in a cross shape on the working portion 22, after the knob 2 rotates 90 degrees, the limit pin 23 can smoothly enter the limit groove 6, and further, the positions of the knob 3 in the unlocking position and the locking position are reliably guaranteed, and the problem of misoperation caused by false touch is further overcome.

On the basis of the scheme, the reset piece 3 is further arranged in the lock shell 1, and the knob 2 is driven to slide to the outside of the lock shell 1 through the reset piece 3, so that the knob 2 can be driven to reset by the reset piece 3; wherein the restoring element 3 is preferably a spring.

Further, the working portion 22 is further provided with a retaining member 4, and the retaining member 4 is connected to the working portion 22 to prevent the working portion 22 from sliding outwards. Therefore, the phenomenon that the knob 2 falls off from the lock shell 1 can be effectively avoided, and in particular, the phenomenon that the limiting pin 23 is separated from the limiting groove 6 under the action of the resetting piece 3 can be avoided.

Meanwhile, the annular groove 24 for installing the backstop 4 is further arranged on the working part 22, so that the backstop 4 is conveniently installed on the working part 22, and the stable and reliable position of the knob 2 after installation can be further ensured; the retaining element 4 is preferably an open snap spring.

Further, the baffle plate 21 is further disposed on the working portion 22, so that excessive sliding of the knob 2 toward the inside of the lock case 1 can be avoided, normal operation of the knob 2 is affected, and meanwhile, a transverse plate 25 is disposed on a surface, away from the working portion 22, of the baffle plate 21, so that a user can pinch the transverse plate 25 by hand to enable the knob 2 to rotate.

In summary, since the device installs the reset element 3 between the baffle 21 and the retaining element 4, the reset element 3 can always cause the knob 2 to keep moving outwards, and when the user operates the knob 2, the user needs to press the knob 2 inwards to complete the rotation of the knob 2. Therefore, compared with the prior art, the force applied by the hand on the transverse plate 25 is smaller and the operation is easier because the knob is pulled outwards to realize the rotation of the knob.

The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the utility model, and yet fall within the scope of the utility model.

Claims

1. A locking mechanism of a lockset, which is characterized in that: comprises a lock shell (1) arranged on a door body, wherein a bracket (5) is arranged in the lock shell (1);

the bracket (5) is provided with a mounting hole (7), and the inner wall of the mounting hole (7) is provided with a limit groove (6);

One side of the lock shell (1) far away from the bracket (5) is also provided with a knob (2), and after the working part (22) of the knob (2) is inserted into the mounting hole (7), the lock shell is connected with the limiting groove (6) through a limiting pin (23) arranged on the working part (22) so as to limit the rotation of the knob (2).

2. The lock counter mechanism of claim 1, wherein: the limiting groove (6) is arranged on the inner wall surface of the mounting hole (7) in a cross shape, and the limiting pin (23) is arranged on the working part (22) in a cross shape.

3. A counter lock mechanism for a lock according to claim 1 or 2, wherein: a reset piece (3) is further arranged in the lock shell (1), and the knob (2) is driven to slide to the outside of the lock shell (1) through the reset piece (3).

4. A lock counter mechanism according to claim 3, wherein: the working part (22) is also provided with a backstop (4), and is connected with the working part (22) through the backstop (4) so as to prevent the outward sliding stroke of the working part (22).

5. The lock counter-lock mechanism of claim 4, wherein: the working part (22) is also provided with an annular groove (24) for installing the retaining piece (4).

6. The lock counter-lock mechanism of claim 5, wherein: the working part (22) is also provided with a baffle plate (21), and one surface of the baffle plate (21) far away from the working part (22) is provided with a transverse plate (25).