CN216277328U

CN216277328U - Locking structure of case lock

Info

Publication number: CN216277328U
Application number: CN202122238178.8U
Authority: CN
Inventors: 毛立强; 胡佳妮; 胡秋燕
Original assignee: Jiaxing Xinnuoke Lock Co ltd
Current assignee: Jiaxing Xinnuoke Lock Co ltd
Priority date: 2021-09-15
Filing date: 2021-09-15
Publication date: 2022-04-12
Anticipated expiration: 2031-09-15

Abstract

The utility model discloses a locking structure of a case lock, which is characterized in that: the lock comprises a lock tongue and a lock hook; the lock tongue is provided with a lock opening for the lock hook to extend into, and a metal reinforcing plate is arranged on the inner side surface of the lock tongue corresponding to the lock opening; the lock hook is provided with a hook body which can penetrate through the lock opening and the metal reinforcing plate and is hooked on the metal reinforcing plate. The utility model can not only improve the structural strength during locking, but also improve the convenience during unlocking.

Description

Locking structure of case lock

Technical Field

The utility model relates to the field of case locks, in particular to a locking structure of a case lock.

Background

With the development of economy, more and more people go out to travel, and the luggage can be carried when going out; in order to prevent the case from being opened by others under the condition that the owner does not know, the case is generally provided with a case lock. Trick lock generally includes lock body and latch hook among the prior art, has lock core subassembly and spring bolt in the lock body, and lock core subassembly is connected and forms linkage structure with the spring bolt. The lock tongue is provided with a lock opening for the lock hook to extend into through deformation, and after the lock hook enters the lock opening, the lock hook is restored and hooked on the inner side surface of the periphery of the lock opening, so that the locking effect of the luggage lock is realized; when the lock needs to be unlocked, a key is inserted into the lock cylinder assembly, and the lock tongue can be driven to move relative to the lock hook after the key is rotated, so that the lock hook is separated from the inner side surface of the periphery of the lock opening, and the unlocking effect is achieved.

In the practical use process, in order to save cost, the lock tongue is a plastic part, and the lock hook is a metal part, so that when the lock hook is hooked on the inner side wall of the lock tongue, the friction force between the lock tongue and the lock hook is large, the resistance of the lock tongue to the movement of the lock hook is increased, the required torsional force is large when the lock is unlocked, and the unlocking difficulty is increased; on the other hand, the bolt of plastics takes place to warp easily, leads to the unexpected unhook unblock problem of latch hook. Therefore, the suitcase lock with the structure in the prior art has room for improvement.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a locking structure of a luggage lock, which can not only improve the structural strength during locking, but also improve the convenience during unlocking.

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

the utility model provides a locking structure of case and bag lock which characterized in that: the lock comprises a lock tongue and a lock hook;

the lock tongue is provided with a lock opening for the lock hook to extend into, and a metal reinforcing plate is arranged on the inner side surface of the lock tongue corresponding to the lock opening;

the lock hook is provided with a hook body which can penetrate through the lock opening and the metal reinforcing plate and is hooked on the metal reinforcing plate.

Preferably, the side face of the lock tongue corresponding to the locking notch is provided with a mounting groove, and the metal reinforcing plate is inserted in the mounting groove.

Preferably, the locking tongue has a guide pressure piece on an outer side facing the locking hook.

Preferably, the latch hook is provided with a base plate at one end back to the lock tongue, and an elastic component for popping the hook body out of the lock opening in an unlocking state is mounted on the base plate.

Preferably, the elastic assembly comprises a housing installed on the substrate, a spring set arranged in the housing, and an elastic member, one end of which abuts against the other end of the spring set, is located outside the housing, and extends in the same direction as the latch hook.

The utility model has the advantages that: the hook body is hooked on the metal reinforcing plate, so that the structural strength during locking can be obviously improved, and the possibility of unhooking of the hook body due to the deformation of the lock tongue is reduced; the metal reinforcing plate and the hook body are both made of metal, so that when the metal reinforcing plate and the hook body are in contact and hook tight, the frictional resistance between the metal reinforcing plate and the hook body is remarkably reduced compared with the frictional resistance between metal and plastic, and the unlocking convenience is remarkably improved.

Drawings

Fig. 1 is a schematic view of the locking hook and the locking tongue provided in this embodiment when locked;

fig. 2 is another schematic view of the locking hook and the locking tongue provided in the present embodiment when locked;

fig. 3 is a schematic view of the elastic component provided in this embodiment.

Detailed Description

The locking structure of the luggage lock of the present invention will be further described with reference to fig. 1 to 3.

The utility model provides a locking structure of case and bag lock which characterized in that: comprises a bolt 1 and a latch hook 2. The bolt 1 has a locking notch 14 on a side wall facing the locking hook 2 for the locking hook 2 to extend into, and the bolt 1 is provided with a metal reinforcing plate 3 on an inner side surface corresponding to the locking notch 14, and the metal reinforcing plate 3 also has an opening corresponding to the locking notch 14 for the locking hook 2 to pass through. The end of the latch hook 2 has a hook body 21 that can pass through the latch opening 14 and the metal reinforcing plate 3 and be hooked on the metal reinforcing plate 3.

Specifically, a mounting groove 11 is formed in the side face, corresponding to the locking notch 14, of the lock tongue 1, two sides of the metal reinforcing plate 3 are clamped and fixed in the mounting groove 11, and the metal reinforcing plate 3 is fixed on the inner side face of the lock tongue 1.

The bolt 1 has a guide pressing block 13 on the outer side facing the locking hook 2, and the surface of the guide pressing block 13 facing the locking notch 14 has a guide pressing surface 131. When the lock hook 2 extends into the lock opening 14, the hook body 21 of the lock hook 2 deforms under the extrusion action of the guide extrusion surface 131 and enters the lock opening 14, and after the hook body 21 passes through the guide extrusion surface 131, the lock hook 2 resets, and the hook body 21 is hooked on the metal reinforcing plate 3, so that the locking effect of the lock tongue 1 and the lock hook 2 is realized.

The lock hook 2 is provided with a base plate 7 at one end back to the lock tongue 1, and an elastic component which ejects the hook body 21 out of the lock opening 14 in an unlocking state is installed on the base plate 7. Specifically, the elastic assembly includes a housing 5 mounted on a substrate 7, a spring assembly 6 disposed in the housing 5, and an elastic member 4 having one end abutting against the other end of the spring assembly 6 and located outside the housing 5 and extending in the same direction as the latch hook 2, where the elastic member 4 is a plate. I.e. the end of the locking hook 2 facing away from the hook body 21 and the housing 5 are fixed to the base plate 7 by means of bolts.

When in locking, the hook body 21 of the bolt 1 enters the bolt 1 and is hooked on the metal reinforcing plate 3 under the guiding action of the guide extrusion block 13; at the same time, the elastic piece 4 is abutted against the case lock shell, and the spring set 6 is in a compressed state. When the lock needs to be unlocked, a key is inserted into the lock cylinder assembly and rotates, and the lock cylinder assembly is linked with the lock tongue 1 to move relative to the lock hook 2, so that the hook body 21 is separated from hooking the metal reinforcing plate 3, and the unlocking function is realized; meanwhile, once the hook body 21 is unhooked, the spring assembly 6 and the elastic piece 4 push the base plate and the lock hook 2 to move back to the lock tongue 1, so that the hook body 21 leaves the lock opening 14. The bolt 1 is reset after the key is turned or released. The linkage structure of the lock cylinder assembly and the lock tongue 1 is the prior art, and the detailed description is not given in this embodiment.

In the process, as the hook body 21 is hooked on the metal reinforcing plate, the structural strength during locking can be obviously improved, and the possibility that the hook body 21 is unhooked due to the deformation of the bolt 1 is reduced; the metal reinforcing plate 3 and the hook body 21 are both made of metal, so that when the metal reinforcing plate and the hook body are in contact and hook tight, the frictional resistance between the metal reinforcing plate and the hook body is remarkably reduced compared with the frictional resistance between metal and plastic, and the unlocking convenience is remarkably improved.

Unless otherwise specified, in the present invention, if there is an orientation or positional relationship indicated by terms of "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are for illustrative purposes only, and should not be construed as limiting the present patent, specific meanings of the above terms can be understood by those of ordinary skill in the art in light of the specific circumstances in conjunction with the accompanying drawings.

Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass, for example, being fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.

Claims

1. The utility model provides a locking structure of case and bag lock which characterized in that: the lock comprises a lock tongue and a lock hook;

2. The lock structure of the lock of the luggage according to claim 1, wherein: the side of the lock tongue corresponding to the locking notch is provided with an installation groove, and the metal reinforcing plate is inserted in the installation groove.

3. The lock structure of the lock of the luggage according to claim 1, wherein: the bolt has direction extrusion piece on the lateral surface towards the latch hook.

4. The lock structure of the lock of the luggage according to claim 1, wherein: the latch hook is provided with a base plate at one end back to the lock tongue, and an elastic component which ejects the hook body out of the lock opening in an unlocking state is arranged on the base plate.

5. The lock structure of the lock of the luggage according to claim 4, wherein: the elastic component comprises a shell arranged on the substrate, a spring group arranged in the shell and an elastic piece, wherein one end of the elastic piece is abutted against the other end of the spring group, is positioned on the outer side of the shell and extends in the same direction with the lock hook.