CN109930907B

CN109930907B - Lock cylinder system, key system and lockset system

Info

Publication number: CN109930907B
Application number: CN201910262009.2A
Authority: CN
Inventors: 周子敬; 刘魏; 蒋文平; 文琪
Original assignee: Zhuhai Unitech Power Technology Co Ltd
Current assignee: Zhuhai Unitech Power Technology Co Ltd
Priority date: 2019-04-02
Filing date: 2019-04-02
Publication date: 2024-01-23
Anticipated expiration: 2039-04-02
Also published as: CN109930907A

Abstract

The invention provides a lock cylinder system, a key system and a lockset system. The lock cylinder system comprises a plurality of lock cylinders, wherein each lock cylinder is provided with a locking blade, each locking blade is provided with a hierarchical structure, each locking blade is provided with a locking position for locking the lock cylinder and an unlocking position for unlocking the lock cylinder, all locking blades of all lock cylinders comprise at least one high-level blade and at least one low-level blade, and the hierarchical structure of the high-level blade is different from that of the low-level blade; when the low-grade key corresponding to the low-grade lock cylinder unlocks the high-grade lock cylinder, the unlocking position of the low-grade key can only drive part of locking blades in the high-grade lock cylinder to move, part of locking blades are kept at the locking position, and the high-grade lock cylinder is kept locked. The invention solves the problems of the prior art that a plurality of keys are needed to be carried for unlocking, the carrying is inconvenient and the management is difficult.

Description

Lock cylinder system, key system and lockset system

Technical Field

The invention relates to the technical field of industrial safety, in particular to a lock cylinder system, a key system and a lockset system.

Background

In public places such as schools, hospitals and institutions, and in industrial safety fields such as electric power misoperation prevention, meter box field and the like, corresponding management authorities are required to be distributed according to different management demands of users, namely, the lock cylinders and the keys are subjected to hierarchical management, so that a plurality of keys are required to be carried, and in addition, the keys are difficult to rapidly correspond to each other one by one during unlocking, and carrying the keys and unlocking are very troublesome.

Disclosure of Invention

The invention mainly aims to provide a lock cylinder system, a key system and a lockset system, which are used for solving the problems that a plurality of keys are needed to be carried for unlocking, the carrying is inconvenient and the management is difficult in the prior art.

In order to achieve the above object, according to one aspect of the present invention, there is provided a key cylinder system including a plurality of key cylinders, the key cylinders having locking blades having a hierarchical structure, and the locking blades having a locking position to lock the key cylinders and an unlocking position to unlock the key cylinders, all of the locking blades of all of the key cylinders including at least one high-stage blade and at least one low-stage blade, and the hierarchical structure of the high-stage blade being different in size from the hierarchical structure of the low-stage blade, the key cylinder having the high-stage blade and not having the low-stage blade being the high-stage key cylinder, the key cylinder obtained by replacing at least one high-stage blade of the high-stage key cylinders with the low-stage blade being the low-stage key cylinder corresponding to the high-stage key cylinder; when a high-grade key corresponding to the high-grade lock cylinder unlocks the high-grade lock cylinder or the low-grade lock cylinder, the unlocking position of the high-grade key can drive all locking blades in the high-grade lock cylinder or the low-grade lock cylinder to move, and all locking blades are switched from the locking position to the unlocking position, so that the lock cylinder is unlocked; when the low-grade key corresponding to the low-grade lock cylinder unlocks the low-grade lock cylinder, the unlocking potential of the low-grade key can drive all locking blades in the low-grade lock cylinder to move and enable all locking blades to move to an unlocking position, and the low-grade lock cylinder is unlocked; when the low-grade key corresponding to the low-grade lock cylinder unlocks the high-grade lock cylinder, the unlocking position of the low-grade key can only drive part of locking blades in the high-grade lock cylinder to move, part of locking blades are kept at the locking position, and the high-grade lock cylinder is kept locked.

Further, the lock cylinder includes: a housing; the core body is rotatably arranged in the shell, the locking blade is movably arranged between the core body and the shell, the locking blade is arranged in a sliding mode relative to the core body, and the distance between two sides of the hierarchical structure is the size of the hierarchical structure along the sliding direction of the locking blade.

Further, at least a portion of the hierarchical structure can extend into the housing, the outer edge of the hierarchical structure extending into the housing is a locking outer edge, the locking blade is provided with a blade unlocking hole for a key to pass through, and the distance between the inner wall of the blade unlocking hole, which is close to the locking outer edge, and the locking outer edge is the size of the hierarchical structure.

Further, the hierarchical structure size of the high-level blades is larger than that of the low-level blades.

Further, the hierarchical structure includes: the distance between two opposite inner walls of the groove is the size of the hierarchical structure; the latch is movable between the housing, the core and the latch blade, the latch blade is positioned in the latched position, the latch is dislocated from the recess, the latch blade stops movement of the latch, a portion of the latch is positioned in the housing, another portion of the latch is positioned in the core to block rotation of the core, the recess is aligned with the latch when the latch blade is positioned in the unlatched position, the latch is withdrawn from the housing, at least a portion of the latch extends into the recess, and the core is rotatable.

Further, the hierarchical structure size of the high-level blades is smaller than the hierarchical structure size of the low-level blades.

Further, the housing has a receiving recess into which a portion of the latch can extend, and a sidewall of the receiving recess has a sloped surface, the core and the housing being relatively rotated when the latch blade is in the unlatched position, the sloped surface pressing the latch to withdraw the latch from the receiving recess.

Further, the lock plunger is provided with a step structure, and the step structure is contacted with the core body stop to control the distance that the lock plunger stretches into the groove.

Further, the lock cylinder further comprises a lock bolt reset piece, and two ends of the lock bolt reset piece are respectively abutted with the lock bolt and the core body so as to provide reset force for the lock bolt to withdraw from the groove.

Further, among the two locking blades at the corresponding positions of the high-rank lock cylinder and the low-rank lock cylinder, the locking blade of the low-rank lock cylinder is not higher in rank than the locking blade of the high-rank lock cylinder.

Further, in the high-grade lock cylinder and the low-grade lock cylinder, a plurality of high-grade blades are arranged, and the grades of the high-grade blades are the same; or at least one of the high-stage blades may have a different stage than the other high-stage blades.

Further, of all lock cylinders, only one lock cylinder of the same grade is provided; or a plurality of lock cylinders with at least one same level are arranged, and the arrangement modes of the locking blades are different among the lock cylinders with the same level.

Further, at least one lock cylinder with the same grade is provided with a plurality of lock cylinders, and the number of the high-grade blades and the low-grade blades among the lock cylinders with the same grade are respectively the same, and the arrangement modes are different.

Further, the number of locking blades in the high-level key cylinder is not less than the number of locking blades in the low-level key cylinder.

According to another aspect of the present invention, there is provided a key system including a plurality of keys, the keys having unlocking positions, and all unlocking positions of all keys including at least one high-level unlocking position and at least one low-level unlocking position, and the high-level unlocking position being different in size from the low-level unlocking position, the key having the high-level unlocking position and not having the low-level unlocking position being a high-level key, the key obtained by replacing at least one high-level unlocking position of the high-level keys with the low-level unlocking position being a low-level key corresponding to the high-level key; when a high-grade key corresponding to the high-grade lock cylinder unlocks the high-grade lock cylinder or the low-grade lock cylinder, the unlocking position of the high-grade key can drive all locking blades in the high-grade lock cylinder or the low-grade lock cylinder to move, and all locking blades are switched from the locking position to the unlocking position, so that the lock cylinder is unlocked; when the low-grade key corresponding to the low-grade lock cylinder unlocks the low-grade lock cylinder, the unlocking potential of the low-grade key can drive all locking blades in the low-grade lock cylinder to move and enable all locking blades to move to an unlocking position, and the low-grade lock cylinder is unlocked; when the low-grade key corresponding to the low-grade lock cylinder unlocks the high-grade lock cylinder, the unlocking position of the low-grade key can only drive part of locking blades in the high-grade lock cylinder to move, part of locking blades are kept at the locking position, and the high-grade lock cylinder is kept locked.

Further, along the sliding direction of the locking blade, the depth of the unlocking position or the tooth pattern of the outer contour is the size of the unlocking position.

Further, the key has unlocking slots or teeth, with different positions of the side walls of the unlocking slots or teeth as unlocking bits.

Further, among all keys, there is only one key of the same class; or a plurality of keys with the same grade are arranged, and the arrangement modes of unlocking positions are different among the keys with the same grade.

Further, the number of unlocking bits in the high-level key is not less than the number of unlocking bits in the low-level key.

According to another aspect of the present invention, there is provided a lock system comprising: the lock cylinder system described above; the key system described above.

By applying the technical scheme of the invention, the lock cylinders are provided with the hierarchical structures with different sizes, the locking blades are divided into the high-grade blades and the low-grade blades according to the size relation of the hierarchical structures, and the high-grade lock cylinders and the low-grade lock cylinders are divided according to the grade lock cylinders of the locking blades arranged in the lock cylinders, wherein the high-grade lock cylinders only comprise the high-grade blades, and the low-grade lock cylinders only comprise the low-grade blades. Thus, when a high-grade key in the key system is inserted into the high-grade lock cylinder, unlocking positions on the high-grade key can drive all locking blades in the high-grade lock cylinder to move to unlocking positions, so that the high-grade lock cylinder is unlocked; when a high-grade key in the key system is inserted into a low-grade lock cylinder, unlocking bits on the high-grade key can drive all locking blades in the low-grade lock cylinder to move to an unlocking position, so that the low-grade lock cylinder is unlocked; when a low-grade key in the key system is inserted into a high-grade lock cylinder, an unlocking position on the low-grade key can only drive part of locking blades in the high-grade lock cylinder to move to an unlocking position, and the rest of locking blades are still kept at a locking position, so that the high-grade lock cylinder is kept locked; when a low-level key in the key system is inserted into the low-level lock cylinder, the situation is the same as that when a high-level key is inserted into the high-level lock cylinder, and the low-level key unlocks the low-level lock cylinder, so that details are not repeated. According to the setting mode, on the premise that the lock cylinder is kept to be classified, the purposes that the high-grade lock cylinder and the low-grade lock cylinder can be unlocked by the high-grade key and the high-grade lock cylinder cannot be unlocked by the low-grade key are achieved, so that unlocking of the lock cylinder is facilitated, and unlocking efficiency of the lock cylinder is greatly improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:

fig. 1 shows a schematic diagram of a lock cylinder and a key according to a first embodiment of the present invention;

FIG. 2 shows a schematic structural view of a primary blade of the lock cylinder of FIG. 1;

FIG. 3 shows a schematic view of the structure of a secondary blade of the lock cylinder of FIG. 1;

FIG. 4 shows a schematic view of the three stage blade of the lock cylinder of FIG. 1;

FIG. 5 shows a schematic structural view of the primary key of FIG. 1;

FIG. 6 shows a schematic structural view of the secondary key of FIG. 1;

FIG. 7 shows a schematic structural view of the three-level key of FIG. 1;

FIG. 8 is a schematic view showing the internal structure of the key of FIG. 1 inserted into a lock cylinder;

FIG. 9 shows a cross-sectional view in the direction A-A of FIG. 8;

fig. 10 is a schematic view showing an internal structure of a primary key inserted into a primary lock cylinder according to the first embodiment of the present invention;

fig. 11 is a schematic view showing an internal structure of a secondary key according to the first embodiment of the present invention when the secondary key is inserted into a primary cylinder;

fig. 12 is a schematic view showing an internal structure of a three-stage key according to the first embodiment of the present invention when the three-stage key is inserted into a primary cylinder;

Fig. 13 is a schematic view showing an internal structure of a primary key inserted into a secondary key cylinder according to the first embodiment of the present invention;

fig. 14 is a schematic view showing an internal structure of a secondary key according to the first embodiment of the present invention when the secondary key is inserted into a secondary lock cylinder;

fig. 15 is a schematic view showing an internal structure of a three-stage key according to the first embodiment of the present invention when it is inserted into a two-stage key cylinder;

fig. 16 is a schematic view showing an internal structure of the primary key in the first embodiment of the present invention when it is inserted into the three-stage key cylinder;

fig. 17 is a schematic view showing an internal structure of a secondary key inserted into a tertiary lock cylinder according to the first embodiment of the present invention;

fig. 18 is a schematic view showing an internal structure of a three-stage key according to the first embodiment of the present invention when the three-stage key is inserted into a three-stage key cylinder;

fig. 19 shows a schematic structural view of a key cylinder and a key in a second embodiment of the present invention;

FIG. 20 shows a schematic view of the primary blade of the lock cylinder of FIG. 19;

FIG. 21 shows a schematic view of the structure of a secondary blade of the lock cylinder of FIG. 19;

FIG. 22 shows a schematic view of the three stage blade of the lock cylinder of FIG. 19;

FIG. 23 is a schematic view showing the construction of the primary key of FIG. 19;

FIG. 24 is a schematic view showing the construction of the secondary key of FIG. 19;

FIG. 25 shows a schematic structural view of the three level key of FIG. 19;

fig. 26 is a schematic view showing an internal structure of the primary key of the second embodiment of the present invention when it is inserted into the primary cylinder;

fig. 27 is a schematic view showing an internal structure of a secondary key in the second embodiment of the present invention when it is inserted into a primary cylinder;

fig. 28 is a schematic view showing an internal structure of a three-stage key in the second embodiment of the present invention when it is inserted into a primary cylinder;

fig. 29 is a schematic view showing the internal structure of the second embodiment of the present invention when a primary key is inserted into a secondary lock cylinder;

fig. 30 is a schematic view showing an internal structure of a secondary key in the second embodiment of the present invention when the secondary key is inserted into a secondary cylinder;

fig. 31 is a schematic view showing an internal structure of a three-stage key in the second embodiment of the present invention when it is inserted into a two-stage key cylinder;

fig. 32 is a schematic view showing an internal structure of a primary key inserted into a three-stage key cylinder in the second embodiment of the present invention;

fig. 33 is a schematic view showing an internal structure of a secondary key in the second embodiment of the present invention when it is inserted into a tertiary lock cylinder; and

fig. 34 is a schematic view showing an internal structure of a three-stage key according to the second embodiment of the present invention when the three-stage key is inserted into a three-stage key cylinder.

Wherein the above figures include the following reference numerals:

10. a lock core; 11. locking the blade; 1101. a primary blade; 1102. a secondary blade; 1103. three-stage blades; 111. a hierarchical structure; 1111. locking the outer edge; 1112. a groove; 1113. a lock bolt; 112. a blade unlocking hole; 113. a driving section; 12. a housing; 121. a receiving recess; 122. a locking hole; 13. a core; 131. a via hole; 14. a latch reset; 15. leaf springs; 16. a dust-proof assembly; 17. an authorization component; 18. a chip assembly; 19. a detection assembly; 20. a key; 21. unlocking the position; 2101. primary unlocking position; 2102. second-stage unlocking position; 2103. three-stage unlocking position; 22. unlocking groove.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.

In the present invention, unless otherwise indicated, terms of orientation such as "upper, lower, top, bottom" are used generally with respect to the orientation shown in the drawings or with respect to the component itself in the vertical, upright or gravitational direction; also, for ease of understanding and description, "inner and outer" refers to inner and outer relative to the profile of each component itself, but the above-mentioned orientation terms are not intended to limit the present invention.

The invention provides a lock cylinder system, a key system and a lockset system, which are used for solving the problems that a plurality of keys are needed to be carried for unlocking, the carrying is inconvenient and the management is difficult in the prior art.

A key cylinder system as shown in fig. 1 to 34, comprising a plurality of key cylinders 10, the key cylinders 10 having locking blades 11, the locking blades 11 having hierarchical structures 111, and the locking blades 11 having a locking position for locking the key cylinders 10 and an unlocking position for unlocking the key cylinders 10, all the locking blades 11 of all the key cylinders 10 including at least one high-grade blade and at least one low-grade blade, and the hierarchical structures 111 of the high-grade blades being different in size from the hierarchical structures 111 of the low-grade blades, the key cylinders 10 having the high-grade blades and not having the low-grade blades being the high-grade key cylinders, the key cylinders 10 obtained by replacing at least one high-grade blade in the high-grade key cylinders with the low-grade blade being the low-grade key cylinders corresponding to the high-grade key cylinders; when the high-grade key corresponding to the high-grade lock cylinder unlocks the high-grade lock cylinder or the low-grade lock cylinder, the unlocking position 21 of the high-grade key can drive all locking blades 11 in the high-grade lock cylinder or the low-grade lock cylinder to move, and all the locking blades 11 are switched from the locking position to the unlocking position, so that the lock cylinder 10 is unlocked; when the low-level key corresponding to the low-level lock cylinder unlocks the low-level lock cylinder, the unlocking position 21 of the low-level key can drive all the locking blades 11 in the low-level lock cylinder to move and enable all the locking blades 11 to move to the unlocking position, so that the low-level lock cylinder is unlocked; when the low-level key corresponding to the low-level lock cylinder unlocks the high-level lock cylinder, the unlocking position 21 of the low-level key can only drive part of the locking blades 11 in the high-level lock cylinder to move, part of the locking blades 11 are kept at the locking position, and the high-level lock cylinder is kept locked.

The present embodiment is configured by providing the hierarchical structure 111 having different sizes in the key cylinder 10, and classifying the locking blade 11 into a high-class blade and a low-class blade according to the size relation of the hierarchical structure 111, and classifying the high-class key cylinder and the low-class key cylinder according to the class key cylinder of the locking blade 11 mounted in the key cylinder 10, wherein the high-class key cylinder contains only the high-class blade and the low-class key cylinder contains only the low-class blade. Thus, when a high-grade key in the key system is inserted into the high-grade lock cylinder, the unlocking position 21 on the high-grade key can drive all the locking blades 11 in the high-grade lock cylinder to move to the unlocking position, so that the high-grade lock cylinder is unlocked; when a high-grade key in the key system is inserted into a low-grade lock cylinder, an unlocking position 21 on the high-grade key can drive all locking blades 11 in the low-grade lock cylinder to move to an unlocking position, so that the low-grade lock cylinder is unlocked; when a low-level key in the key system is inserted into a high-level lock cylinder, the unlocking position 21 on the low-level key can only drive part of the locking blades 11 in the high-level lock cylinder to move to the unlocking position, and the rest of the locking blades 11 are still kept in the locking position, so that the high-level lock cylinder is kept locked; when a low-level key in the key system is inserted into the low-level lock cylinder, the situation is the same as that when a high-level key is inserted into the high-level lock cylinder, and the low-level key unlocks the low-level lock cylinder, so that details are not repeated. Under the premise of keeping the lock cylinder 10 in a graded mode, the aim that the high-grade key can unlock the high-grade lock cylinder and the low-grade key cannot unlock the high-grade lock cylinder is achieved, so that the lock cylinder 10 is conveniently unlocked, and the unlocking efficiency of the lock cylinder 10 is greatly improved.

The following points need to be described here:

first, among all the locking blades 11 in the high-level lock cylinder and the low-level lock cylinder, the locking blade 11 of the lowest level is the low-level blade, and the high-level blades are all high-level blades of which the level is higher than that of the low-level blades, that is, only one level is possible in the low-level blades, and the high-level blades may simultaneously contain a plurality of levels and each high-level blade has a higher level than that of the low-level blade.

Secondly, the high-grade lock cylinder and the low-grade lock cylinder have a corresponding relation, the low-grade lock cylinder is obtained by replacing at least one high-grade blade with a low-grade blade on the basis of the high-grade lock cylinder, and only under the condition, the high-grade key can unlock the low-grade lock cylinder, but unlocking cannot be realized between the two lock cylinders 10 without the corresponding relation. And there may be more than one low-level lock cylinder corresponding to the high-level lock cylinders, and according to practical situations, there may be a plurality of low-level lock cylinders having corresponding relations with one or several high-level lock cylinders at the same time, and the high-level key can unlock only the low-level lock cylinders having corresponding relations. When the high-level key is inserted into the non-corresponding lock cylinder, the unlocking position 21 on the high-level key is not matched with the locking blades 11 in the non-corresponding lock cylinder, and the high-level key cannot drive all the locking blades 11 in the non-corresponding lock cylinder to move to the unlocking position, so that the non-corresponding low-level lock cylinder cannot be unlocked.

The lock cylinder system includes a primary lock cylinder, a secondary lock cylinder, and a tertiary lock cylinder … classified by the ranks from high to low, and the locking blade 11 includes a primary blade 1101, a secondary blade 1102, and a tertiary blade 1103 … classified by the ranks from high to low, respectively. For clarity of illustration, the following definitions are provided: in the key cylinder 10, the levels of the locking blades 11 are written in the form of "XXX" in order from left to right according to the level of each locking blade 11 along the direction in which the key 20 is inserted into the key cylinder 10, for example, three locking blades 11 are in the secondary key cylinder, which are three-stage blade 1103, two-stage blade 1102 and one-stage blade 1101 in order along the direction in which the key 20 is inserted into the key cylinder 10, and written as "321".

In this embodiment, the high-level lock cylinder is taken as the second-level lock cylinder, the low-level lock cylinder is taken as the third-level lock cylinder, and accordingly, the low-level blade is the third-level blade 1103, and the high-level blade is the first-level blade 1101 and/or the second-level blade 1102.

In the present embodiment, the rank of the locking blade 11 of the low-rank key cylinder is not higher than the rank of the locking blade 11 of the high-rank key cylinder, among the two locking blades 11 at the corresponding positions of the high-rank key cylinder and the low-rank key cylinder. Specifically, according to the direction of inserting the key 20 into the lock cylinder 10, each of the locking blades 11 is defined as a first, a second and a third … in turn, and similarly, in the low-rank lock cylinder, the locking blades 11 are also defined as a first, a second and a third … according to the direction of inserting the key 20 into the lock cylinder 10, two locking blades 11 with the same definition are locking blades 11 at corresponding positions between the two lock cylinders 10, and the level of the locking blade 11 between the two locking blades 11 needs to satisfy the low-rank lock cylinder is not higher than that of the locking blade 11 of the high-rank lock cylinder. Of course, the above definition is only for unlocking the corresponding position, and the definition is only an example, and may be defined in other ways.

In one key cylinder 10, there may be only one locking blade 11, for example, "1", and in more cases, the locking blade 11 is usually provided with a plurality, and since there is only one low-level blade, it is only a number of superimposed, for example, "333", but since a high-level blade may include a plurality of levels of the locking blade 11, when there are a plurality of high-level blades, it may be divided into the following two cases: first, all the high-grade blades in the high-grade lock cylinder and the low-grade lock cylinder have the same grade, namely, are primary blades 1101 or secondary blades 1102, such as '222', '223'; second, in the high-level lock cylinder and the low-level lock cylinder, the level of at least one high-level blade is different from the level of the other high-level blades, that is, the high-level blade includes both the primary blade 1101 and the secondary blade 1102, for example, "123", and in one lock cylinder system, only one of the above two cases may occur, or both of the above two cases may occur at the same time.

Since there may be more than one low-grade lock cylinder corresponding to a high-grade lock cylinder, among all lock cylinders 10, lock cylinders 10 of the same grade may be classified into the following two cases: one is that the same class of lock cylinders 10 has only one, for example only one, secondary lock cylinder; the arrangement mode of the locking blades 11 is different between the lock cylinders 10 of the same level, that is, the arrangement positions of the second-level blades 1102 are different, for example, two second-level lock cylinders are respectively named as 211 and 121, the locking blades 11 of the two second-level lock cylinders are respectively named as a first second-level lock cylinder and a second-level lock cylinder, the third-level lock cylinder obtained by replacing the locking blades 11 on the basis of the first second-level lock cylinder is a first third-level lock cylinder corresponding to the first second-level lock cylinder, the third-level lock cylinder obtained by replacing the locking blades 11 on the basis of the second-level lock cylinder is a second third-level lock cylinder corresponding to the second-level lock cylinder, the first second-level key corresponding to the first second-level lock cylinder can unlock the first second-level lock cylinder and the first third-level lock cylinder, but the second-level lock cylinder cannot unlock the second-level lock cylinder, and the second-level key corresponding to the second-level lock cylinder is similar to the above.

When there are a plurality of lock cylinders 10 of the same level, the number of high-level blades and low-level blades are the same and the arrangement is different between the lock cylinders 10 of the same level, namely "211" and "121" described above. Of course, the number of high-level blades and low-level blades may be different, for example, the two lock cylinders 10 of "112" and "122" are both secondary lock cylinders, and the number of primary blades 1101 and secondary blades 1102 are different, and the arrangement is also different.

None of the above examples changes the total number of locking blades 11, only the different levels of locking blades 11 have different duty cycles. On the basis of replacing at least one high-grade blade in the high-grade lock cylinder with a low-grade blade to obtain a corresponding low-grade lock cylinder, a mode of changing the number of locking blades 11, for example, a secondary lock cylinder '212', replacing the leftmost secondary blade 1102 with a tertiary blade 1103, and then removing the rightmost secondary blade 1102 to obtain a tertiary lock cylinder '31', wherein the tertiary lock cylinder '31' and the secondary lock cylinder '212' also have a corresponding relationship, and the hierarchical management of the lock cylinder 10 can be realized. It should be noted that, when the number of locking blades 11 is changed, it is ensured that the number of locking blades 11 in the high-level key cylinder is not less than the number of locking blades 11 in the low-level key cylinder, and the schemes of the second-level key cylinder "122" and the third-level key cylinder "1232" do not satisfy the above conditions, and hierarchical management of the key cylinder 10 cannot be achieved.

As shown in fig. 1, 8 and 9, the lock cylinder 10 includes a housing 12 and a core 13, the core 13 is rotatably disposed in the housing 12, the lock blade 11 is movably disposed between the core 13 and the housing 12, and the lock blade 11 is slidably disposed with respect to the core 13, and a distance between both sides of the hierarchical structure 111 is a size of the hierarchical structure 111 along a sliding direction of the lock blade 11. The core body 13 is preferably columnar, and the locking blades 11 in the same lock cylinder 10 are arranged at intervals in parallel along the direction in which the key 20 is inserted into the lock cylinder 10. The core 13 also has an unlocking passage into which the key 20 extends.

In this embodiment, the locking blade 11 has a blade unlocking hole 112 through which the key 20 passes, the blade unlocking hole 112 is communicated with the unlocking channel, the locking blade 11 has a driving portion 113, one end of the driving portion 113 extends into the blade unlocking hole 112, and the unlocking position 21 presses the driving portion 113 to drive the locking blade 11 to switch from the locking position to the unlocking position. When the lock is installed, the driving part 113 of one part of the locking blade 11 is arranged opposite to the driving part 113 of the other part of the locking blade 11, so that the extending directions of the two parts of the driving part 113 are opposite, and therefore, the key 20 can press the driving part 113 to drive the locking blade 11 to move only by arranging unlocking positions 21 on different surfaces, the complexity of the key 20 is further improved, and the safety of the lock cylinder 10 is improved.

Regarding the specific arrangement of the hierarchical structure 111, the present embodiment provides the following two implementations:

embodiment one

As shown in fig. 1, 8 and 9, the lock and unlock of the lock cylinder 10 is achieved by the locking blade 11, the side wall of the core 13 has at least one through hole 131, and the through hole 131 communicates with the unlock passage, the housing 12 has a locking hole 122 or a locking groove as a locking position, the locking position communicates with the through hole 131, the locking blade 11 is slidably disposed between the through hole 131 and the locking position, the locking blade 11 extends into the locking hole 122 or the locking groove to block the relative rotation of the core 13 and the housing 12 when the locking blade 11 is in the locking position, and the locking blade 11 is withdrawn from the locking position when the locking blade 11 is in the unlocking position, so that the relative rotation between the core 13 and the housing 12 is not blocked any more. In this embodiment, the locking position is preferably a locking hole 122, the locking hole 122 is communicated with the through hole 131, and a plurality of through holes 131 and locking holes 122 are arranged at two opposite positions of the side wall of the core 13, and when the locking blade 11 is installed, the locking blade 11 is installed in the core 13 through the locking hole 122 and the through holes 131, and then the core 13 is installed in the shell 12.

As shown in fig. 2 to 4 and fig. 10 to 18, the hierarchical structure 111 is a portion for locking on the locking blade 11, at least a portion of the hierarchical structure 111 can extend into the housing 12, the outer edge of the hierarchical structure 111 extending into the housing 12 is a locking outer edge 1111, the distance between the inner wall of the blade unlocking hole 112 near the locking outer edge 1111 and the locking outer edge 1111 is the size of the hierarchical structure 111, taking the direction in fig. 2 as an example, the left side edge of the locking blade 11 is the locking outer edge 1111, the lateral distance between the left inner wall of the blade unlocking hole 112 and the locking outer edge 1111 is the size of the hierarchical structure 111, and the hierarchical structure 111 size of the high-level blade is larger than the hierarchical structure 111 of the low-level blade. Thus, when the low-grade key is inserted into the high-grade lock cylinder, the low-grade unlocking position on the low-grade key can only drive the high-grade blade to move for a small distance, and the hierarchical structure 111 on the high-grade blade still stretches into the locking hole 122 of the shell 12, so that the high-grade lock cylinder is kept locked, and the classification of the lock cylinder 10 is realized.

Second embodiment

As shown in fig. 19 to 22 and fig. 26 to 34, the hierarchical structure 111 is composed of two parts, namely a groove 1112 and a latch 1113, which are respectively formed on the latch blade 11, and the distance between two opposite inner walls of the groove 1112 is the size of the hierarchical structure 111; the latch 1113 is movably disposed between the housing 12, the core 13 and the latch blade 11, the sidewall of the core 13 is still provided with a through hole 131 to limit the sliding direction of the latch blade 11, when the latch blade 11 is in the locked position, the latch 1113 is dislocated from the groove 1112, the latch blade 11 stops the movement of the latch 1113, a portion of the latch 1113 is disposed in the housing 12, another portion of the latch 1113 is disposed in the core 13 to block the rotation of the core 13, when the latch blade 11 is in the unlocked position, the groove 1112 is aligned with the latch 1113, one end of the latch 1113 exits the housing 12, the other end of the latch 1113 extends into the groove 1112, the latch 1113 is no longer stopped between the housing 12 and the core 13, and the core 13 can rotate. Taking the direction of fig. 20 as an example, the groove 1112 is opened below the locking blade 11, and the opening is downward, the lateral distance between the two vertical side walls of the groove 1112 is the size of the hierarchical structure 111, and the size of the hierarchical structure 111 of the high-level blade is smaller than the size of the hierarchical structure 111 of the low-level blade, so when the low-level key is inserted into the high-level lock cylinder, only part of the groove 1112 of the high-level blade in the high-level lock cylinder moves to the unlocking position, and still part of the groove 1112 on the locking blade 11 is not aligned with the lock plug 1113, and the lock plug 1113 cannot move, and cannot withdraw from the housing 12, so that the high-level lock cylinder remains locked.

In the present embodiment, in which the housing 12 has the accommodating recess 121, the lock cylinder 1113 blocks rotation between the housing 12 and the core 13 when the lock cylinder 1113 is inserted into the accommodating recess 121, and the lock cylinder 10 is locked, and the lock cylinder 1113 is unlocked when it is withdrawn from the accommodating recess 121. The side walls of the receiving recess 121 have inclined surfaces which are inclined in a direction in which the locking pin 1113 exits the receiving recess 121 away from the center of the receiving recess 121, preferably inclined surfaces are provided on both opposite side walls of the receiving recess 121 and inclined in a direction in which the locking pin 1113 exits the receiving recess 121 away from each other, so that when the locking blade 11 is in the unlocking position, the locking pin 1113 exits the receiving recess 121 and protrudes into the recess 1112, and after the core 13 is rotated by the key 20, the core 13 is rotated relative to the housing 12, and at this time the inclined surfaces press the locking pin 1113, so that the locking pin 1113 exits the receiving recess 121, unlocking is achieved.

Optionally, the latch 1113 has a step structure, and the step structure is in stop contact with the core 13 to control the distance that the latch 1113 extends into the recess 1112, the end of the latch 1113 extending into the accommodating recess 121 is a large diameter section, the end of the latch 1113 extending into the recess 1112 is a small diameter section, the step structure is formed between the large diameter section and the small diameter section, when the recess 1112 is aligned with the latch 1113, the latch 1113 slides into the recess 1112 until the step structure abuts against the core 13, and movement is stopped, at this time, the latch 1113 completely exits the accommodating recess 121. Correspondingly, a stepped hole is formed in the core 13, the lock plunger 1113 is arranged in the stepped hole in a penetrating mode, and the step structure is matched with the stepped hole to achieve stopping of the lock plunger 1113.

In this embodiment, the lock cylinder 10 further includes a lock cylinder resetting member 14, and both ends of the lock cylinder resetting member 14 respectively abut against the lock cylinder 1113 and the core 13 to provide a resetting force for the lock cylinder 1113 to withdraw from the recess. The latch reset member 14 is preferably a linear spring, one end of which abuts on the step structure and the other end abuts on the core 13, so that the latch 1113 always has a movement tendency of extending into the accommodating recess 121, the latch 1113 always extends into the accommodating recess 121 when the core 13 is not rotated, and the latch 1113 can be automatically reset under the action of the linear spring when the core 13 is reversely reset, the latch 1113 extends into the accommodating recess 121 and exits the groove 1112, the key 20 is pulled out, and the latch blade 11 is reset under the action of the blade spring 15, thereby realizing the reset of the lock cylinder 10. The linear springs may be provided in plurality, and the latches 1113 extend a distance along the axial direction of the core 13, and each linear spring abuts against a different position of the latch 1113, so that the latch 1113 is uniformly stressed.

Both embodiments described above improve the structure of the locking blade 11, so that the locking blade 11 distinguishes between a high-grade blade and a low-grade blade, and of course, other improvements may be made to the locking blade 11, or other components of the lock cylinder 10 may be improved, so that the lock cylinder 10 forms a high-grade lock cylinder and a low-grade lock cylinder.

As shown in fig. 1 and 19, the lock cylinder 10 further includes a dust-proof assembly 16, where the dust-proof assembly 16 is covered on an end of the core 13 where the key 20 is inserted, and the dust-proof assembly 16 has an openable dust-proof cover and a torsion spring, and when the key 20 is inserted into the core 13, the key 20 presses the dust-proof cover to open the dust-proof cover, and when the key 20 is withdrawn from the core 13, the torsion spring drives the dust-proof cover to close so that the dust-proof cover shields the unlocking hole of the core 13.

Optionally, the lock cylinder 10 further includes an authorization component 17 movably disposed between the housing 12 and the core 13, where the authorization component 17 is locked, and the authorization component 17 is clamped between the housing 12 and the core 13 to block the relative rotation of the housing 12 and the core 13, and when the authorization component 17 is authorized to be unlocked, the authorization component 17 is retracted from the housing 12 and/or the core 13, so that the housing 12 and the core 13 can rotate relatively.

Optionally, the lock cylinder 10 further includes a chip assembly 18, the chip assembly 18 being coupled to the housing 12 or the core 13 and being capable of mating with a code reading coil of the key 20 to mate with the key 20 such that the key 20 identifies the chip assembly 18.

Optionally, the lock cylinder 10 further comprises a detection assembly 19 to detect the relative rotation angle between the key 20 and the lock cylinder 10. The detecting assembly 19 includes magnetic steel provided on the lock cylinder 10 and a hall element provided on the key 20, which is capable of sensing a position of the magnetic steel to detect an unlocking angle of the lock cylinder 10 when the key 20 is inserted into the lock cylinder 10 and rotated by a certain angle.

The present embodiment also provides a key system, including a plurality of keys 20, the keys 20 have unlocking bits 21, and all the unlocking bits 21 of all the keys 20 include at least one high-level unlocking bit and at least one low-level unlocking bit, and the size of the high-level unlocking bit is different from that of the low-level unlocking bit, the key 20 having the high-level unlocking bit and not having the low-level unlocking bit is a high-level key, and the key 20 obtained by replacing at least one high-level unlocking bit in the high-level keys with the low-level unlocking bit is a low-level key corresponding to the high-level key; when the high-grade key corresponding to the high-grade lock cylinder unlocks the high-grade lock cylinder or the low-grade lock cylinder, the unlocking position 21 of the high-grade key can drive all locking blades 11 in the high-grade lock cylinder or the low-grade lock cylinder to move, and all the locking blades 11 are switched from the locking position to the unlocking position, so that the lock cylinder 10 is unlocked; when the low-level key corresponding to the low-level lock cylinder unlocks the low-level lock cylinder, the unlocking position 21 of the low-level key can drive all the locking blades 11 in the low-level lock cylinder to move and enable all the locking blades 11 to move to the unlocking position, so that the low-level lock cylinder is unlocked; when the low-level key corresponding to the low-level lock cylinder unlocks the high-level lock cylinder, the unlocking position 21 of the low-level key can only drive part of the locking blades 11 in the high-level lock cylinder to move, part of the locking blades 11 are kept at the locking position, and the high-level lock cylinder is kept locked.

In this embodiment, the two opposite sides of the key 20 are both provided with unlocking slots 22, different positions of the side walls of the unlocking slots 22 are used as unlocking positions 21, the specific shape of the unlocking positions 21 is set correspondingly according to the specific shape of the corresponding locking blade 11, and only the unlocking positions 21 are required to be ensured to push the corresponding locking blade 11, so that the locking blade 11 moves to the unlocking position. Unlocking slot 22 may also be unlocking teeth or an external profile of a tooth or other structure.

It should be noted that, along the sliding direction of the locking blade 11, the depth of the unlocking position 21 or the tooth pattern of the outer contour is the size of the unlocking position 21, and taking the direction in fig. 5 as an example, the vertical depth of the unlocking slot 22 is the size of the unlocking position 21. The key 20 of the embodiment is to be matched with the structure of the lock cylinder 10, specifically, when the lock cylinder 10 is the lock cylinder 10 in the first embodiment, the size of the high-level unlocking position is smaller than that of the low-level unlocking position, as shown in fig. 5 to 7, when the low-level key is inserted into the high-level lock cylinder, the replaced low-level unlocking position on the low-level key cannot drive the high-level blade at the corresponding position of the high-level lock cylinder to the unlocking position due to the large depth, and the high-level blade still extends into the shell 12, so that the purpose that the low-level key cannot unlock the high-level lock cylinder is achieved. Similarly, when the lock cylinder 10 is the lock cylinder 10 in the second embodiment, the size of the high-level unlocking position is larger than that of the low-level unlocking position, as shown in fig. 23 to 25, when the low-level key is inserted into the high-level lock cylinder, the replaced low-level unlocking position on the low-level key cannot drive the high-level blade at the corresponding position of the high-level lock cylinder to the unlocking position due to the smaller depth, and the grooves 1112 on the high-level blade are still dislocated with the lock plug 1113, so that the purpose that the low-level key cannot unlock the high-level lock cylinder is achieved.

Similar to the lock cylinder 10, the key system includes a primary key, a secondary key, and a tertiary key … from high to low, and correspondingly, the unlocking bits 21 include a primary unlocking bit 2101, a secondary unlocking bit 2102, and a tertiary unlocking bit 2103 … from high to low. In this embodiment, the high-level lock cylinder is taken as the second-level lock cylinder, and the low-level lock cylinder is taken as the third-level lock cylinder, so that the high-level key is correspondingly the second-level key, and the low-level key is correspondingly the third-level key.

Similar to the key cylinder 10 described above, the same level of keys 20 can be divided into the following two cases: one is that there is only one key 20 of the same class; the number of keys 20 of at least one level is plural, and the specific situation is basically the same as that in the lock cylinder 10, and will not be described here again. In addition, on the basis of replacing the unlocking bits of the high level, the number of the unlocking bits 21 may be increased, and the specific situation is basically the same as that in the lock cylinder 10, which is not described herein, but the number of the unlocking bits 21 in the high level key is required to be ensured to be not less than the number of the unlocking bits 21 in the low level key.

Since the principle between the classification of the key 20 in the key system and the classification of the lock cylinder 10 in the lock cylinder system is completely identical, it is sufficient to classify the key 20 according to the arrangement of the lock cylinder 10, i.e. the arrangement mentioned in the above-mentioned lock cylinder 10 is equally applicable to the key 20. Since the key 20 and the lock cylinders 10 are used in cooperation in actual use, each lock cylinder 10 is provided with a key 20 of the same level, and the key 20 can unlock not only the lock cylinder 10 but also the corresponding lock cylinder 10 lower than the key.

The embodiment also provides a lock system, which comprises the lock cylinder system and the key system, wherein the lock cylinders 10 of the lock cylinder system are in one-to-one correspondence with the keys 20 of the key system, and the keys 20 of a high grade can unlock the corresponding lock cylinders 10 of the same grade and the corresponding lock cylinders 10 of a low grade, and the keys of the low grade can only unlock the lock cylinders of the low grade but not the lock cylinders of the high grade.

It should be noted that, in the above embodiments, a plurality refers to at least two.

From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

1. solves the problems of the prior art that a plurality of keys are needed to be carried for unlocking, the carrying is inconvenient and the management is difficult;

2. the lock cylinder system is classified according to the sizes of the classifying structures by arranging the classifying structures with different sizes on the locking blades, so that the classifying control requirement of the lock cylinder system is realized;

3. the lock cylinder has a dustproof function, prevents sand and dust from entering the lock cylinder, prevents the lock cylinder from being blocked, and improves the reliability of the lock cylinder in a severe environment;

4. the key has the identity recognition function, and the chip assembly can be matched with a code reading coil on the key, so that the identity of the lock cylinder is recognized, and the key is convenient to manage;

5. the lock core has an authorization management function, the authorization component of the lock core can be unlocked only after the information of the code chip component is read by the key correctly, the authorization management function is realized, and malicious operation is prevented;

6. The lock cylinder has the function of angle detection, and the Hall element on the key is matched with the magnetic steel of the lock cylinder, so that the unlocking angle of the lock cylinder can be obtained, and the real unlocking and locking state of the lock cylinder can be obtained.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A lock cylinder system, characterized by comprising a plurality of lock cylinders (10), the lock cylinders (10) having locking blades (11), the locking blades (11) having a hierarchical structure (111), and the locking blades (11) having a locking position for locking the lock cylinders (10) and an unlocking position for unlocking the lock cylinders (10), all locking blades (11) of all lock cylinders (10) comprising at least one high-level blade and at least one low-level blade, and the hierarchical structure (111) of the high-level blades being of a different size than the hierarchical structure (111) of the low-level blades,

the lock cylinder (10) having the high-level blades and not having the low-level blades is a high-level lock cylinder, and the lock cylinder (10) obtained by replacing at least one of the high-level blades in the high-level lock cylinder with the low-level blade is a low-level lock cylinder corresponding to the high-level lock cylinder;

When a high-grade key corresponding to the high-grade lock cylinder unlocks the high-grade lock cylinder or the low-grade lock cylinder, unlocking bits of the high-grade key can drive all locking blades (11) in the high-grade lock cylinder or the low-grade lock cylinder to move, and all the locking blades (11) are switched from the locking position to the unlocking position, so that the lock cylinder (10) is unlocked;

when a low-grade key corresponding to the low-grade lock cylinder unlocks the low-grade lock cylinder, unlocking bits of the low-grade key can drive all locking blades (11) in the low-grade lock cylinder to move, and all the locking blades (11) are enabled to move to the unlocking position, so that the low-grade lock cylinder is unlocked;

when a low-grade key corresponding to the low-grade lock cylinder unlocks the high-grade lock cylinder, the unlocking position of the low-grade key can only drive part of locking blades (11) in the high-grade lock cylinder to move, part of the locking blades (11) are kept at the locking position, and the high-grade lock cylinder is kept locked;

the lock cylinder (10) comprises:

a housing (12);

the core body (13), the core body (13) is rotatably arranged in the shell (12), the locking blade (11) is movably arranged between the core body (13) and the shell (12), the locking blade (11) is arranged in a sliding mode relative to the core body (13), and the distance between two sides of the hierarchical structure (111) is equal to the size of the hierarchical structure (111) along the sliding direction of the locking blade (11);

Wherein at least a part of the hierarchical structure (111) can extend into the shell (12), the outer edge of the hierarchical structure (111) extending into the shell (12) is a locking outer edge (1111), the locking blade (11) is provided with a blade unlocking hole (112) for a key (20) to pass through, and the distance between the inner wall of the blade unlocking hole (112) close to the locking outer edge (1111) and the locking outer edge (1111) is equal to the size of the hierarchical structure (111);

alternatively, wherein the hierarchical structure (111) comprises:

a groove (1112) formed in the locking blade (11), wherein the distance between two opposite inner walls of the groove (1112) is the size of the hierarchical structure (111);

the lock comprises a lock body (1113), wherein the lock body (1113) is movably arranged between a shell (12), a core body (13) and a locking blade (11), the lock body (1113) is dislocated with a groove (1112) when the locking blade (11) is positioned at a locking position, the locking blade (11) stops the lock body (1113), one part of the lock body (1113) is positioned in the shell (12), the other part of the lock body (1113) is positioned in the core body (13) to block the rotation of the core body (13), the groove (1112) is aligned with the lock body (1113) when the locking blade (11) is positioned at the unlocking position, the lock body (1113) is withdrawn from the shell (12), at least one part of the lock body (1113) stretches into the groove (1112), and the core body (13) can rotate.

2. The lock cylinder system according to claim 1, characterized in that when the distance between the inner wall of the blade unlocking hole (112) near the locking outer edge (1111) and the locking outer edge (1111) is the size of the hierarchical structure (111), the hierarchical structure (111) size of the high-level blade is larger than the hierarchical structure (111) size of the low-level blade.

3. The lock cylinder system according to claim 1, characterized in that when the hierarchical structure (111) comprises a groove (1112) and the distance between two opposite inner walls of the groove (1112) is the size of the hierarchical structure (111), the hierarchical structure (111) size of the high-stage blade is smaller than the size of the hierarchical structure (111) of the low-stage blade.

4. The lock cylinder system according to claim 1, wherein when the hierarchical structure (111) comprises a recess (1112) and a lock plunger (1113), the housing (12) has a receiving recess (121), a portion of the lock plunger (1113) is able to protrude into the receiving recess (121), a side wall of the receiving recess (121) has a bevel, and the core (13) and the housing (12) are relatively rotated when the locking blade (11) is in the unlocked position, the bevel pressing the lock plunger (1113) to withdraw the lock plunger (1113) from the receiving recess (121).

5. The lock cylinder system according to claim 1, characterized in that when the hierarchical structure (111) comprises a recess (1112) and a lock cylinder (1113), the lock cylinder (1113) has a stepped structure, and the stepped structure is in stop contact with the core (13) to control the distance the lock cylinder (1113) protrudes into the recess (1112).

6. The lock cylinder system according to claim 1, wherein when the hierarchical structure (111) comprises a recess (1112) and a lock cylinder (1113), the lock cylinder (10) further comprises a lock cylinder reset (14), both ends of the lock cylinder reset (14) respectively abutting the lock cylinder (1113) and the core body (13) to provide a reset force for the lock cylinder (1113) to withdraw from the recess.

7. The lock cylinder system according to any one of claims 1 to 6, wherein, of the two locking blades (11) at the corresponding positions of the high-rank lock cylinder and the low-rank lock cylinder, the locking blade (11) of the low-rank lock cylinder is of a rank not higher than the rank of the locking blade (11) of the high-rank lock cylinder.

8. The lock cylinder system according to any one of claims 1 to 6, wherein in the high-grade lock cylinder and the low-grade lock cylinder, the high-grade blade is plural,

The grade of each high-grade blade is the same; or (b)

At least one of the high-stage blades has a different stage from the stages of the other high-stage blades.

9. The lock cylinder system according to any one of claims 1 to 6, characterized in that, in all the lock cylinders (10),

-only one of said cylinders (10) of the same class; or (b)

At least one lock cylinder (10) of the same grade is provided with a plurality of lock cylinders (10), and the arrangement modes of the locking blades (11) are different among the lock cylinders (10) of the same grade.

10. The lock cylinder system according to claim 9, wherein at least one of the lock cylinders (10) of the same class is plural, and the high-class blades and the low-class blades are respectively the same in number and different in arrangement between the lock cylinders (10) of the same class.

11. The lock cylinder system according to any one of claims 1 to 6, characterized in that the number of locking blades (11) in the high-grade lock cylinder is not less than the number of locking blades (11) in the low-grade lock cylinder.

12. A key system comprising a plurality of keys (20), said keys (20) having unlocking bits (21), and all of said unlocking bits (21) of all of said keys (20) comprising at least one high-level unlocking bit and at least one low-level unlocking bit, and said high-level unlocking bit being of a different size than said low-level unlocking bit,

The key (20) having the high-level unlocking position and not having the low-level unlocking position is a high-level key, and the key (20) obtained by replacing at least one of the high-level unlocking positions in the high-level key with the low-level unlocking position is a low-level key corresponding to the high-level key;

when a high-grade key corresponding to a high-grade lock cylinder unlocks the high-grade lock cylinder or the low-grade lock cylinder, an unlocking position (21) of the high-grade key can drive all locking blades (11) in the high-grade lock cylinder or the low-grade lock cylinder to move, and all the locking blades (11) are switched from a locking position to an unlocking position, so that the lock cylinder (10) is unlocked;

when a low-grade key corresponding to the low-grade lock cylinder unlocks the low-grade lock cylinder, an unlocking position (21) of the low-grade key can drive all locking blades (11) in the low-grade lock cylinder to move, and all the locking blades (11) are enabled to move to the unlocking position, so that the low-grade lock cylinder is unlocked;

when a low-grade key corresponding to the low-grade lock cylinder unlocks the high-grade lock cylinder, an unlocking position (21) of the low-grade key can only drive part of locking blades (11) in the high-grade lock cylinder to move, part of the locking blades (11) are kept at the locking position, and the high-grade lock cylinder is kept locked;

Wherein, along the sliding direction of the locking blade (11), the depth of the unlocking position (21) or the tooth pattern of the outer contour is the size of the unlocking position (21);

or wherein the key (20) has an unlocking groove (22) or an unlocking tooth, different positions of the side wall of the unlocking groove (22) or the unlocking tooth being the unlocking position (21).

13. The key system according to claim 12, wherein, in all of said keys (20),

-only one of said keys (20) of the same class; or (b)

At least one key (20) of the same level is provided in plurality, and the arrangement modes of the unlocking positions (21) are different among the keys (20) of the same level.

14. The key system according to claim 12, wherein the number of unlocking bits (21) in the high-level key is not less than the number of unlocking bits (21) in the low-level key.

15. A lock system, comprising:

the lock cylinder system of any one of claims 1 to 11;

the key system of any one of claims 12 to 14.