A lock core device

Abstract

The present invention provides a lock core device, including a lock core and a lock core sleeve, wherein the lock core is arranged in the lock core sleeve and can rotate relative to the lock core sleeve, an accommodating space is opened inside the lock core, and a plurality of lock plates and spacers are arranged in an alternating manner in the accommodating space, and an elastic member is provided on the spacer, so that when unlocking, the lock plate rotates and drives the elastic member to undergo elastic deformation, and the generated reaction force makes the elastic member drive the lock plate to reset when locking, so as to realize automatic locking, which significantly increases the difficulty of technical unlocking, and the elastic member is arranged on the spacer, so there is no need to consider the size, elastic coefficient and molding difficulty of the elastic member when designing a new lock core, so that the design of the new lock core is relatively simple, which is conducive to realizing the diversification of lock specifications.

Description

Technical Field

[0001] The invention relates to the field of locks, in particular to a lock core device. Background Art

[0002] Patent No. CN201822122824.2 discloses a lock core device, in which the side wall of the lock core of the device extends toward the direction of the accommodation space with an elastic member, which can realize automatic locking and significantly increase the difficulty of technical unlocking. However, in the large-scale production of locks, in order to realize the diversification of lock specifications and to simplify the manufacturing process of locks, the lock core and the lock core spacer are often used as common parts, and the original design of the lock core and the lock core spacer is retained. By changing the arrangement order and quantity of the lock core and the lock core spacer, and assembling them with the redesigned lock core, a new type of lock is formed. On this basis, if the technical solution of the above patent is adopted, because the lock core is connected with an elastic member, each time a new lock core is designed, it is necessary to consider the size, elastic coefficient and molding difficulty of the elastic member, which is difficult to design and is not conducive to the large-scale production of locks of different specifications. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the present invention provides a lock core device, which can achieve automatic locking and increase the difficulty of technical unlocking, thereby facilitating the large-scale production of locks of different specifications.

[0004] The present invention adopts the following technical solutions.

[0005] A lock core device comprises a lock core and a lock core sleeve, wherein the lock core is arranged in the lock core sleeve and can rotate relative to the lock core sleeve, an accommodating space is provided inside the lock core, a plurality of lock plates and spacers arranged alternately at intervals are provided in the accommodating space, and an elastic member is provided on the spacer, so that when the lock is unlocked, the lock plate rotates and drives the elastic member to undergo elastic deformation, and the reaction force generated makes the elastic member drive the lock plate to reset when the lock is locked.

[0006] Furthermore, the side wall of the lock core is provided with an installation groove, the outer side wall of the spacer is provided with a positioning piece extending into the installation groove, the positioning piece abuts against the side wall of the installation groove, thereby limiting the rotation of the spacer, and the outer side wall of the lock plate is provided with a limiting piece extending into the installation groove to limit the rotation angle of the lock plate.

[0007] Furthermore, one end of the elastic member is connected to the positioning member, and the other end of the elastic member is against the limiting member. In the unlocked state, the elastic member is squeezed and deformed by the rotating locking plate.

[0008] Furthermore, the elastic member, the positioning member and the spacer are an integral injection-molded structure, and the limiting member and the locking plate are an integral injection-molded structure.

[0009] Furthermore, the elastic member is a sheet-like structure and is bent into an arc shape along the circumference of the spacer.

[0010] Furthermore, the outer side walls of the locking plates and the spacers are both provided with notches, and in the unlocked state, the notches of the locking plates and the spacers are aligned with each other to form an unlocking groove.

[0011] Furthermore, a through accommodating groove is provided on the side wall of the lock core, a locking piece is provided in the accommodating groove, and a locking groove is provided on the inner side wall of the lock core sleeve. In the locked state, the locking piece is offset from the unlocking groove and partially embedded in the locking groove; in the unlocked state, the locking piece is offset from the locking groove and partially embedded in the unlocking groove.

[0012] Furthermore, the inner side wall of the locking plate is provided with a guide block extending toward the central axis direction.

[0013] Furthermore, it also includes a lock core cover, which is arranged at the opening of the accommodating space and is detachably fixedly connected to the lock core.

[0014] The beneficial effects of the present invention are:

[0015] The present invention provides a lock core device, which has a plurality of lock plates and spacers arranged in an alternating manner. The spacers are provided with elastic members, so that when unlocking, the lock plates rotate and drive the elastic members to undergo elastic deformation. The generated reaction force causes the elastic members to drive the lock plates to reset when locking, thereby achieving automatic locking. At the same time, since the elastic members can exert a certain resistance force on the rotation of the lock plates in the unlocking direction, it is not easy to use objects such as paper clips to move the lock plates to the unlocking position, thereby increasing the difficulty of technical unlocking. The elastic members are provided on the spacers. In actual production, the lock plates and spacers can be manufactured in large quantities according to preset specifications as universal parts. In this way, when manufacturing lock cores of other specifications, there is no need to reconsider the size, elastic coefficient and molding difficulty of the elastic members, so that the design of the new lock core is relatively simple, which is conducive to realizing the diversification of lock specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 is a schematic diagram of the exploded structure of the lock core device in this embodiment;

[0018] Figure 2 It is a schematic diagram of a partial exploded structure of the lock core device of this embodiment;

[0019] Figure 3 This is a schematic diagram of the assembly structure of the lock core device of this embodiment;

[0020] Figure 4 is a schematic diagram of the structure of the locking piece;

[0021] Figure 5 Schematic diagram of the structure of the separator.

[0022] Notes on the attached drawings:

[0023] Lock core 1, accommodating space 11, mounting groove 12, accommodating groove 13, lock core sleeve 2, locking groove 21, locking plate 3, limiting member 31, guide block 32, spacer 4, positioning member 41, avoidance groove 411, elastic member 5, notch 6, locking member 7, lock core cover 8. DETAILED DESCRIPTION

[0024] The accompanying drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the accompanying drawings. The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0025] Reference Figures 1 to 5 A lock core device shown in the figure comprises a lock core 1 and a lock core sleeve 2, wherein the lock core 1 is arranged in the lock core sleeve 2 and can rotate relative to the lock core sleeve 2, wherein an accommodation space 11 is provided inside the lock core 1, wherein a plurality of lock plates 3 and spacers 4 are arranged alternately and spaced apart, wherein a through hole for inserting a key is reserved in the middle of the lock plates 3 and the spacers 4, wherein an elastic member 5 is provided on the spacer 4, so that when unlocking, the lock plate 3 rotates and drives the elastic member 5 to undergo elastic deformation, and the generated reaction force causes the elastic member 5 to drive the lock plate 3 to reset when locking. Specifically, the number of the lock plates 3 and the spacers 4 in this embodiment is equal, and the elastic member 5 corresponds to the spacers 4 one by one.

[0026] Preferably, the side wall of the lock core 1 is provided with a mounting groove 12, and the outer side wall of the spacer 4 is provided with a positioning member 41 extending into the mounting groove 12, and the positioning member 41 abuts against the side wall of the mounting groove 12, thereby limiting the rotation of the spacer 4. The outer side wall of the locking plate 3 is provided with a limiting member 31 extending into the mounting groove 12 to limit the rotation angle of the locking plate 3.

[0027] Preferably, one end of the elastic member 5 is connected to the positioning member 41, and the other end of the elastic member 5 is against the limiting member 31. In the unlocked state, the elastic member 5 is squeezed and deformed by the limiting member 31. Specifically, a relief groove 411 for accommodating the elastic member 5 is reserved at the positioning member 41 of the spacer 4, and one end of the elastic member 5 is connected to an inner side wall of the relief groove 411. In the locked state, the elastic member 5 is in a natural state, and the limiting member 31 is on the side of the installation groove 12 away from the connection between the elastic member 5 and the positioning member 41. In the unlocking process, the key drives the lock plate 3 to rotate around its central axis, driving the limiting member 31 to move toward the other side of the installation groove 12, thereby compressing the corresponding elastic member 5. The elastic member 5 generates a reaction force on the limiting member 3 in the compressed state, so that the lock plate 3 and the spacer 4 have a tendency to perform relative reverse rotation movement.

[0028] In order to reduce the number of assembled parts and facilitate the assembly of the lock, the elastic member 5, the positioning member 41 and the spacer 4 are an integral injection molding structure, and the limiting member 31 and the locking plate 3 are an integral injection molding structure.

[0029] The elastic member 5 is a sheet-like structure and is bent into an arc shape along the circumference of the spacer 4. The elastic member 5 is designed to be an arc-shaped sheet-like structure, which not only has good resilience but also is not easy to break.

[0030] The outer side walls of the locking plate 3 and the spacer 4 are provided with a notch 6. In the unlocked state, the notches 6 of each locking plate 3 and the spacer 4 are aligned with each other to form an unlocking groove. The side wall of the lock core 1 is provided with a through receiving groove 13, and a locking member 7 is provided in the receiving groove 13. The inner side wall of the lock core sleeve 2 is provided with a locking groove 21. In the locked state, the locking member 7 is staggered with the unlocking groove and partially embedded in the locking groove 21, and the rest is located in the receiving groove 13, thereby limiting the relative rotation of the lock core 1 and the lock core sleeve 2 to achieve the locking effect; in the unlocked state, the locking member 7 is partially embedded in the unlocking groove and staggered with the locking groove 21 to release the restriction on the relative rotation of the lock core 2 and the lock core sleeve 3, thereby achieving unlocking. It should be noted that the locking member 7 is preferably a cylindrical structure. As a further optimization, the cross-sections of the notch 6 and the locking groove 21 are arc-shaped to facilitate the embedding or staggering of the locking member 7.

[0031] The inner side wall of the locking plate 3 is provided with a guide block 32 extending in the direction of the central axis thereof. During the key insertion process, the guide block 32 moves relatively along the guide groove on the key, thereby causing the locking plate to rotate around its central axis in the unlocking direction. Since the structure of the key is already a widely used prior art, the present invention does not further describe it.

[0032] In order to prevent the lock plate 3 and the spacer 4 from being offset from the accommodating space 11 , a lock core cover 8 is provided at the opening of the accommodating space 11 , and the lock core cover 8 is detachably fixedly connected to the lock core 1 .

[0033] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A lock core device, comprising a lock core and a lock core sleeve, wherein the lock core is arranged in the lock core sleeve and can rotate relative to the lock core sleeve, wherein a receiving space is provided inside the lock core, wherein a plurality of lock plates and spacers are arranged alternately and spaced apart, wherein: An elastic member is provided on the spacer, so that when unlocking, the lock plate rotates and drives the elastic member to undergo elastic deformation, and the generated reaction force causes the elastic member to drive the lock plate to reset when locking; The side wall of the lock core is provided with a mounting groove, the outer side wall of the spacer is provided with a positioning piece extending into the mounting groove, the positioning piece abuts against the side wall of the mounting groove, thereby limiting the rotation of the spacer, and the outer side wall of the lock plate is provided with a limiting piece extending into the mounting groove, so as to limit the rotation angle of the lock plate; One end of the elastic member is connected to the positioning member, and the other end of the elastic member is against the limiting member. In the unlocked state, the elastic member is squeezed and deformed by the rotating locking plate; The outer side walls of the locking plates and the spacers are both provided with notches, and in the unlocked state, the notches of the locking plates and the spacers are aligned with each other to form an unlocking groove; The side wall of the lock core is provided with a through receiving groove, the receiving groove is provided with a locking piece, the inner side wall of the lock core sleeve is provided with a locking groove, in the locked state, the locking piece is staggered with the unlocking groove and partially embedded in the locking groove; in the unlocked state, the locking piece is staggered with the locking groove and partially embedded in the unlocking groove; The elastic member, the positioning member and the spacer are an integral injection-molded structure, and the limiting member and the locking member are an integral injection-molded structure; The elastic member is a sheet-like structure and is bent into an arc shape along the circumference of the spacer.

2. A lock core device according to claim 1, characterized in that: The inner side wall of the locking plate is provided with a guide block extending toward the central axis direction.

3. A lock core device according to claim 1, characterized in that: It also includes a lock core cover, which is arranged at the opening of the accommodating space and is detachably fixedly connected to the lock core.

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