Mechanism lock of box

Abstract

A mechanical lock of a box comprises a top plate, a bottom plate, two side plates, a high end plate and a low end plate of the box, top plate sliding grooves are formed in the opposite faces of the two side plates and the inner side of the high end plate, and the mechanical lock is characterized in that the mechanical lock is arranged between the low end plate and the top plate; the mechanical lock comprises a rotating shaft, a moving strip and a lock cylinder, the lock cylinder hole is formed in the lower end plate, the moving strip mounting hole is formed in the lower end of the lock cylinder hole, and a lock hole matched with the lock cylinder is formed in one end of the top plate. The mechanical box can be conveniently opened through a mark made by a user without a key, and the mechanical box is quite difficult to open if the user does not know the internal structure.

Description

Technical Field

[0001] The present invention relates to a piece of furniture, and particularly to a secret lock for a box. Background Art

[0003] Since there were no safes like those today in the past and there were few various types of locks like those in modern times, craftsmen used to design some hidden compartments on furniture and make some secret boxes to hide valuable items. Generally, the designs were relatively concealed and opening them required certain techniques. However, many of the hidden compartments and various secret devices in traditional furniture have now been lost. Therefore, the inventor redesigned various hidden compartments and secret devices and now provides a secret lock for a box to fill the above-mentioned deficiencies.

[0004] In view of the above deficiencies, the creator of the present invention finally obtained the present invention through long-term research and practice. Summary of the Invention

[0005] The purpose of the present invention is to provide a secret lock for a box to overcome the above-mentioned technical deficiencies.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is to provide a secret lock for a box, including the top plate, bottom plate, two side plates, a high-end plate and a low-end plate of the box. The opposite surfaces of the two side plates and the inner side of the high-end plate are all provided with sliding grooves for the top plate. A secret lock is arranged between the low-end plate and the top plate. The secret lock includes: a rotating shaft, a moving strip, and a lock core. A lock core hole is provided on the low-end plate, and a moving strip mounting hole is provided at the lower end of the lock core hole. A lock hole matching the lock core is provided at one end of the top plate. The rotating shaft is provided with an eccentric circular boss. A protruding rotating button is provided at the outer end of the rotating shaft, and a gasket is provided at the inner end of the rotating shaft. The gasket is fixed to the rotating shaft by screws. The moving strip is provided with a step for limiting the moving strip, and the moving strip is further provided with an arc-shaped notch matching the eccentric circular boss. The moving strip is provided with two notches, namely a first notch and a second notch. A drop mortise hole is provided on the low-end plate, and a drop mortise is arranged in the drop mortise hole. When the moving strip moves to one side for limiting, the drop mortise can fall into the second notch, and when the moving strip moves to the other side for limiting, the drop mortise can fall into the first notch. The depths of the first notch and the second notch are each half of the length of the drop mortise. The low-end plate has two layers, namely an inner layer and an outer layer. The lock core, the moving strip, the drop mortise and the eccentric circular boss are all arranged between the inner layer and the outer layer.

[0007] Compared with the prior art, the beneficial effects of the present invention are as follows: The mechanical lock of a box designed by the present invention does not require a password or a key, and can be conveniently opened by the marks made by oneself. It is really quite difficult to open the mechanical box if the internal structure is unknown. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the main view sectional structure of the mechanical lock of a box according to the present invention; Figure 2 It is a schematic diagram of the top view sectional structure of the mechanical lock of a box according to the present invention; Figure 3 It is a schematic diagram of the right view sectional structure of the mechanical lock of a box according to the present invention after being locked; Figure 4 It is a schematic diagram of the right view sectional structure of the mechanical lock of a box according to the present invention after being opened; Figure 5 It is a schematic diagram of the right view sectional structure of the mechanical lock of a box according to the present invention with the lock core still locked after the moving bar is pulled out. DETAILED DESCRIPTION OF THE INVENTION

[0009] The present invention will be described in more detail in conjunction with the accompanying drawings in terms of its technical features and advantages.

[0010] Embodiment, a mechanical lock for a box, comprising a top plate 9, a bottom plate 16, two side plates 1, a high-end plate 2 and a low-end plate of the box. Sliding grooves for the top plate 9 are provided on the opposite surfaces of the two side plates 1 and the inner side of the high-end plate 2. A mechanical lock is arranged between the low-end plate and the top plate 9. The mechanical lock includes: a rotating shaft 5, a moving strip 11, and a lock core 10. A lock core hole 10 is provided on the low-end plate, and a mounting hole for the moving strip 11 is provided at the lower end of the lock core hole 10. A lock hole matching the lock core 10 is provided at one end of the top plate 9. The rotating shaft 5 is provided with an eccentric circular boss 7. A protruding rotating button 6 is provided at the outer end of the rotating shaft 5. A gasket 8 is provided at the inner end of the rotating shaft 5. The gasket 8 is fixed to the rotating shaft 5 by a screw. The moving strip 11 is provided with a step for limiting the moving strip 11. The moving strip 11 is further provided with an arc-shaped notch matching the eccentric circular boss 7. The moving strip 11 is provided with two notches, namely a first notch 12 and a second notch 14. A drop tenon hole is provided on the low-end plate, and a drop tenon 15 is arranged in the drop tenon hole. When the moving strip 11 moves to one side limit, the drop tenon 15 can drop into the second notch 14. When the moving strip 11 moves to the other side limit, the drop tenon 15 can drop into the first notch 12. The depths of the first notch 12 and the second notch 14 are one-half of the length of the drop tenon 15. The low-end plate has two layers, namely an inner layer 4 and an outer layer 3. The lock core 10, the moving strip 11, the drop tenon 15 and the eccentric circular boss 7 are all arranged between the inner layer 4 and the outer layer 3. When the box needs to be locked, rotate the rotating button 6 to rotate the eccentric circular boss 7 to the highest point, push the lock core 10 upward into the lock hole of the top plate 9. The moving strip 11 moves to the limit on one side, and the drop tenon 15 drops into the second notch 14. The rotating button 6 cannot be rotated anymore, and the moving strip 11 is also locked by the drop tenon 15 and cannot move. The lock core 10 is locked and cannot come down anymore. When the box needs to be opened, turn the box upside down, the drop tenon 15 drops back into the drop tenon hole, push the moving strip 11 to make the arc-shaped notch of the moving strip 11 opposite to the eccentric circular boss 7, rotate the rotating button 6 to rotate the eccentric circular boss 7 to the lowest point, and the lock core 10 drops, then the box can be opened. If the moving strip 11 is pushed to the limit on the other side, the drop tenon 15 will drop into the first notch 12, and the box still cannot be opened. Therefore, it is really quite difficult to open the mechanical box without knowing the internal structure.

[0011] The above are only the preferred embodiments of the present invention, which are illustrative rather than restrictive to the present invention. Those skilled in the art understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the present invention, but all will fall within the protection scope of the present invention.

Claims

1. A combination lock for a box, comprising a top plate, a bottom plate, two side plates, a high-end plate and a low-end plate of the box. The top plate sliding grooves are provided on the opposite surfaces of the two side plates and the inner side of the high-end plate. It is characterized in that, A mechanism lock is provided between the low-end plate and the top plate. The mechanism lock includes: a rotating shaft, a moving bar, and a lock core. A lock core hole is provided on the low-end plate, and a moving bar mounting hole is provided at the lower end of the lock core hole. A lock hole matching the lock core is provided at one end of the top plate.

2. The mechanical lock of a box according to claim 1, characterized in that, The rotating shaft is provided with an eccentric circular boss. A protruding rotating button is provided at the outer end of the rotating shaft, and a gasket is provided at the inner end of the rotating shaft. The gasket is fixed to the rotating shaft by screws.

3. The mechanical lock of a box according to claim 2, characterized in that, The moving bar is provided with a step for limiting the moving bar, and the moving bar is further provided with an arc-shaped notch matching the eccentric circular boss.

4. The mechanical lock of a box according to claim 3, characterized in that, The moving bar is provided with two notches, namely a first notch and a second notch. A drop tenon hole is provided on the low-end plate, and a drop tenon is provided in the drop tenon hole. When the moving bar moves to one side limit, the drop tenon can fall into the second notch. When the moving bar moves to the other side limit, the drop tenon can fall into the first notch. The depths of the first notch and the second notch are one-half of the length of the drop tenon.

5. The mechanical lock of a box according to claim 4, characterized in that, The low-end plate has two layers, namely an inner layer and an outer layer. The lock core, the moving bar, the drop tenon, and the eccentric circular boss are all provided between the inner layer and the outer layer.

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