阅读说明：本技术 一种叶片防盗锁芯 (Blade anti-theft lock cylinder ) 是由 许平德 于 2020-07-13 设计创作，主要内容包括：本发明公开了一种叶片防盗锁芯,包括锁壳、锁芯和边柱,所述锁芯上设置有若干个锁芯叶片直通槽,每个锁芯叶片直通槽内均设置有外叶片、内叶片和叶片弹簧,所述外叶片包括上外叶片和下外叶片,所述内叶片包括上内叶片和下内叶片,所述叶片弹簧包括上叶片弹簧和下叶片弹簧,所述上外叶片、下内叶片和上叶片弹簧组成第一叶片小组,所述下外叶片、上内叶片和下叶片弹簧组成第二叶片小组,所述第一叶片小组和第二叶片小组在锁芯叶片直通槽内组成一个整体。上述技术方案,解决了现有三张叶片或四张叶片共用一个弹簧在开锁时有部分叶片处于浮动不受力的缺陷,结构设计合理、增加技术性开启难度和提高密钥量、减少互开率、安全可靠、实用性好。(The invention discloses a blade anti-theft lock core which comprises a lock shell, a lock core and a side column, wherein a plurality of lock core blade through grooves are formed in the lock core, an outer blade, an inner blade and a blade spring are arranged in each lock core blade through groove, the outer blade comprises an upper outer blade and a lower outer blade, the inner blade comprises an upper inner blade and a lower inner blade, the blade spring comprises an upper blade spring and a lower blade spring, the upper outer blade, the lower inner blade and the upper blade spring form a first blade group, the lower outer blade, the upper inner blade and the lower blade spring form a second blade group, and the first blade group and the second blade group form a whole in the lock core blade through grooves. Above-mentioned technical scheme has solved current three blades or four blades and has shared a spring and when unblanking the defect that some blades are in floating not atress, structural design is reasonable, increase the technical degree of difficulty of opening and improve the secret key volume, reduce the rate of opening each other, safe and reliable, practicality are good.)

1. The utility model provides a blade theftproof lock core, includes lock shell (1), lock core (2) and side post (3), its characterized in that: the lock cylinder is characterized in that a plurality of lock cylinder blade through grooves (21) are formed in the lock cylinder (2), an outer blade, an inner blade and a blade spring are arranged in each lock cylinder blade through groove (21), the outer blade comprises an upper outer blade (4) and a lower outer blade (5), the inner blade comprises an upper inner blade (6) and a lower inner blade (7), the blade spring comprises an upper blade spring (8) and a lower blade spring (9), the upper outer blade (4), the lower inner blade (7) and the upper blade spring (8) form a first blade group, the lower outer blade (5), the upper inner blade (6) and the lower blade spring (9) form a second blade group, and the first blade group and the second blade group form a whole in the lock cylinder blade through grooves (21).

2. The blade anti-theft lock cylinder according to claim 1, characterized in that: the side columns (3) are square side columns or V-shaped side columns.

3. The blade anti-theft lock cylinder according to claim 2, characterized in that: go up outer blade (4) and outer blade (5) down and all include outer blade body (10), be provided with outer blade key jack (101) in outer blade body (10), be provided with outer tartar matching boss (102) in outer blade key jack (101), outer blade body (10) one end an organic whole is provided with outer blade pressure spring boss (103), and outer blade body (10) other end is provided with outer blade notch (104) and outer blade side column start-up hypotenuse (105).

4. The blade anti-theft lock cylinder according to claim 3, characterized in that: go up inner vane (6) and lower inner vane (7) and all include inner vane body (11), be provided with inner vane key jack (111) in inner vane body (11), inner vane body (11) one end an organic whole is provided with inner vane pressure spring boss (112), and the inner vane body (1) other end is provided with inner vane password notch (113).

5. The blade anti-theft lock cylinder according to claim 4, characterized in that: the lock is characterized in that a key (12) is arranged at one end of the lock cylinder (2), an upper outer tooth (121), an upper inner tooth (122), a lower outer tooth (123) and a lower inner tooth (124) are arranged on the key (12), the upper outer tooth (121) is matched with the upper outer blade (4), the upper inner tooth (122) is matched with the upper inner blade (6), the lower outer tooth (123) is matched with the lower outer blade (5), and the lower inner tooth (124) is matched with the lower inner blade (7).

6. The blade anti-theft lock cylinder according to claim 5, characterized in that: when the key (12) is not inserted, one end of the upper blade spring (8) is propped against the outer blade pressing spring boss of the upper outer blade (4), and the other end of the upper blade spring is propped against the inner blade pressing spring boss of the lower inner blade (7); one end of the lower blade spring (9) is propped against the inner blade pressure spring boss of the upper inner blade (6), and the other end is propped against the outer blade pressure spring boss of the lower outer blade (5).

7. The blade anti-theft lock cylinder according to claim 6, characterized in that: when a key (12) is inserted, the upper outer blade (4) compresses the upper blade spring (8) downwards to move, and meanwhile, the lower inner blade (7) compresses the upper blade spring (8) upwards to move; the upper inner blade (6) compresses the lower blade spring (9) downwards to move, and the lower outer blade (5) compresses the lower blade spring (9) upwards to move.

Technical Field

The invention relates to the technical field of lock cylinders, in particular to a blade anti-theft lock cylinder.

Background

The lock is an article which people cannot leave in daily life, and people always use the lock to store important articles from old times, so that own property cannot be stolen by others. The core anti-theft part of the lock is the lock core, and the performance of the lock core directly influences the anti-theft performance of the whole lock. At present, the lock cylinders are various, and the traditional mechanical spring lock and the traditional blade lock cylinder are circulated in the market for many years, so that the unlocking tool developed aiming at the traditional mechanical spring lock and the blade lock cylinder is visible everywhere, and the performance of the lock cylinder can not meet the anti-theft requirement.

In recent years, manufacturers have developed many types of lock cylinders with good performance to solve the problem. The most representative structure is the side column lock core, especially the blade side column lock core, and the blade side column lock core compares the advantage of pellet shot from a slingshot side column lock core and is: the key amount is much higher for the same lock core length. The original blade side column lock core only has one blade in a lock core blade groove (blade storage bin), and then two or three blades are added, wherein the reasonable design is that the force of a blade spring is applied to the oppositely-arranged blades, the other blades can move simultaneously when one blade is moved, and the more typical structure is that three blades share one blade spring; however, this structure also has a drawback: when the lock is unlocked, only two blades are under the action of the blade spring, the rest blades can be in a spring-free state, the blades in the spring-free state are easy to mutually open, the technical opening prevention performance is influenced, and certain quality and potential safety hazards are realized.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a safe and reliable blade anti-theft lock cylinder which is reasonable in structural design, increases the technical opening difficulty and the key amount, reduces the mutual opening rate.

In order to achieve the purpose, the invention provides the following technical scheme: the blade anti-theft lock cylinder comprises a lock shell, a lock cylinder and a side column, wherein a plurality of lock cylinder blade through grooves are formed in the lock cylinder, an outer blade, an inner blade and a blade spring are arranged in each lock cylinder blade through groove, the outer blade comprises an upper outer blade and a lower outer blade, the inner blade comprises an upper inner blade and a lower inner blade, the blade spring comprises an upper blade spring and a lower blade spring, the upper outer blade, the lower inner blade and the upper blade spring form a first blade group, the lower outer blade, the upper inner blade and the lower blade spring form a second blade group, and the first blade group and the second blade group form a whole in the lock cylinder blade through grooves.

The invention is further configured to: when any one blade in the first blade small group and the second blade small group is moved, the other three blades and the blade spring are moved integrally at the same time.

The invention is further configured to: the side columns are square side columns or V-shaped side columns.

The invention is further configured to: go up outer blade and outer blade down and all include outer blade body, this internal outer blade key jack that is provided with of outer blade, be provided with outer tooth matching boss in the outer blade key jack, outer blade body one end an organic whole is provided with outer blade pressure spring boss, and the outer blade body other end is provided with outer blade notch and outer blade limit post start-up hypotenuse.

The invention is further configured to: go up inner leaf and lower inner leaf and all include the inner leaf body, this internal inner leaf key jack that is provided with of inner leaf, inner leaf body one end an organic whole is provided with inner leaf pressure spring boss, and the inner leaf body other end is provided with inner leaf password notch.

The invention is further configured to: the lock is characterized in that a key is arranged at one end of the lock cylinder, an upper outer tooth, an upper inner tooth, a lower outer tooth and a lower inner tooth are arranged on the key, the upper outer tooth is matched with the upper outer blade, the upper inner tooth is matched with the upper inner blade, the lower outer tooth is matched with the lower outer blade, and the lower inner tooth is matched with the lower inner blade.

The invention is further configured to: when the key is not inserted, one end of the upper blade spring is propped against the outer blade pressing spring boss of the upper outer blade, and the other end of the upper blade spring is propped against the inner blade pressing spring boss of the lower inner blade; one end of the lower blade spring is propped against the inner blade pressure spring boss of the upper inner blade, and the other end of the lower blade spring is propped against the outer blade pressure spring boss of the lower outer blade.

The invention is further configured to: when a key is inserted, the upper outer blade compresses the upper blade spring downwards to move, and meanwhile, the lower inner blade compresses the upper blade spring upwards to move; the upper inner blade compresses the lower blade spring downwards to move, and the lower outer blade compresses the lower blade spring upwards to move simultaneously.

The invention has the advantages that: compared with the prior art, the lock core blade groove is a straight groove, when any one blade in the first blade group and the second blade group is moved, other three blades and the blade spring are moved integrally and simultaneously, the design has the advantage that each blade is stressed by the spring when the lock is unlocked, the defect that part of the blades float and are not stressed when the existing three blades or four blades share one spring when the lock is unlocked is overcome, and the anti-theft performance of the lock core and the reliability of the product quality are greatly improved; the structure design is reasonable, the technical opening difficulty is increased, the key amount is increased, the mutual opening rate is reduced, the safety and the reliability are realized, and the practicability is good.

The invention is further described with reference to the drawings and the specific embodiments in the following description.

Drawings

FIG. 1 is an exploded view of a first embodiment of the present invention;

FIG. 2 is a schematic view of the assembly of an outer leaf, an inner leaf and a leaf spring according to an embodiment of the invention;

FIG. 3 is a schematic structural diagram of a soft start outer blade according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a bi-directional starting type outer blade according to an embodiment of the present invention;

FIG. 5 is a schematic view of a hard start outer blade according to an embodiment of the present invention;

FIG. 6 is a schematic structural view of an inner blade according to an embodiment of the present invention;

FIG. 7 is a schematic view of a blade in a state where a key is not inserted according to an embodiment of the present invention;

FIG. 8 is a schematic view of the principle of blade movement when a key is inserted according to an embodiment of the present invention;

FIG. 9 is a schematic view of a key according to an embodiment of the present invention;

FIG. 10 is a schematic view of a key bit pattern and blade position match according to one embodiment of the present invention;

FIG. 11 is a schematic structural diagram of a square pillar according to an embodiment of the present invention;

FIG. 12 is a schematic structural view of two outer blades according to an embodiment of the present invention;

FIG. 13 is a schematic structural view of a second inner blade according to an embodiment of the present invention;

FIG. 14 is a schematic structural view of a blade in a state where a key is not inserted according to a second embodiment of the present invention;

FIG. 15 is a schematic structural view of the movement principle of a blade when a key is inserted according to a second embodiment of the present invention;

FIG. 16 is a schematic structural diagram of a second V-shaped side pillar according to an embodiment of the present invention.

Detailed Description

In the description of the present embodiment, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", etc. appear, their indicated orientations or positional relationships are based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.