CN213297508U

CN213297508U - Double-key primary-secondary simultaneous unlocking sleeve lock

Info

Publication number: CN213297508U
Application number: CN202021125382.8U
Authority: CN
Inventors: 覃文元
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-17
Filing date: 2020-06-17
Publication date: 2021-05-28
Anticipated expiration: 2030-06-17

Abstract

The utility model relates to a double-key primary-secondary simultaneous unlocking lock, which comprises a plurality of independent locks, wherein each lock is provided with an outer lock core and an inner lock core, and a lock hole which can be inserted by a secondary key or a primary key is arranged in the inner lock core; a plurality of marble holes are formed in the outer lock core and the inner lock core of each lock, and a first-stage marble, a second-stage marble and a third-stage marble are placed in each marble hole; each lock is provided with a sub-key, and all the locks are provided with a master key together. This application is through making level twice to same lock, also makes level twice to same lock subkey, master key, finally realizes that a lock corresponds a subkey, the purpose that all locks correspond a master key jointly in the cover lock. The convenience when opening or locking in the management room greatly improves, and managers only need carry female key can open or lock the room door of having installed this application, and the room user can carry subkey, does not influence daily room and uses.

Description

Double-key primary-secondary simultaneous unlocking sleeve lock

Technical Field

The utility model relates to a tool to lock especially relates to a double key primary and secondary is with opening set lock.

Background

In the prior art, for safety, most of locks are provided with one key and one lock or a lock is provided with a plurality of same keys, but master keys are avoided as much as possible, namely, one key can unlock a plurality of locks, which is a scheme adopted from the safety performance of the locks.

However, in some public places, such as schools, kindergartens, etc., one key corresponds to one lock, which results in that a manager needs to carry a large number of keys to open or close each room door during routine daily inspection. Because the number of keys is large, the lock corresponding to the key is difficult to remember by simply remembering, the lock and the key are required to be paired for convenient use, and once the number falls off, the number is easy to be confused, so that inconvenience is caused.

Disclosure of Invention

The utility model provides a double key primary and secondary is with opening set lock, this set lock include the independent lock of a plurality of, every lock corresponds an solitary subkey, and all locks except its subkey that corresponds in the set lock correspond a master key jointly, and all locks in the set lock can be opened to master key to realize a plurality of purposes of lock are opened to a key, and then realize conveniently managing the purpose in the more place of lock.

The purpose of the application is realized as follows: the double-key primary-secondary simultaneous unlocking lock comprises a plurality of independent locks, each lock is provided with an outer lock cylinder and an inner lock cylinder, and a lock hole into which a secondary key or a primary key can be inserted is formed in the inner lock cylinder; a plurality of marble holes are formed in the outer lock core and the inner lock core of each lock, and a first-stage marble, a second-stage marble and a third-stage marble are placed in each marble hole; each lock is provided with a sub-key, and all the locks are provided with a master key together.

The marble holes comprise outer holes formed in the outer lock cylinder and inner holes formed in the inner lock cylinder, the inner holes penetrate through the inner lock cylinder, and the outer holes are communicated with the inner holes; a third-stage marble is placed in the outer hole, and a spring used for applying thrust to the third-stage marble is arranged between the third-stage marble and the bottom surface of the outer hole; a first-grade marble is placed in the inner hole; a second-level marble is arranged between the first-level marble and the third-level marble.

The third-level marbles in each marble hole in the same lock are equal in length, the second-level marbles are unequal or equal in length, and the first-level marbles are unequal in length.

The third-level marbles in different locks are equal in length, the second-level marbles are unequal in length, and the first-level marbles are unequal in length.

The sub-key comprises a key head which can be inserted into the inner lock cylinder, the rear end of the key head is integrally connected with a key handle, and two sides of the joint of the key head and the key handle are provided with limiting pieces. The key head comprises a leveling part provided with teeth and a body. A limiting groove is formed in the body, and a limiting bulge corresponding to the limiting groove is arranged in the lock hole of the inner lock cylinder.

The master key comprises a key head which can be inserted into the inner lock cylinder, the rear end of the key head is integrally connected with a key handle, and two sides of the joint of the key head and the key handle are provided with limiting pieces. The key head comprises a leveling part provided with teeth and a body. The lock hole of the inner lock cylinder is internally provided with a limiting bulge corresponding to the limiting groove so as to ensure the accuracy of the position of the master key when the master key is inserted into the lock hole.

The width of the leveling part of the master key is smaller than that of the leveling part of the slave key. Further, the leveling width of the master key is 2/3 of the leveling width of the slave key.

This application is through making level twice to same lock, also makes level twice to same lock subkey, master key, finally realizes that a lock corresponds a subkey, the purpose that all locks correspond a master key jointly in the cover lock. This application has realized the purpose that a key opened a set of lock, and a plurality of locks in the set lock can be installed on a plurality of doors, and then make the convenience when the management room is opened or is locked greatly improve, and managers only need carry female key can open or lock the room door of installing this application, also need not to carry a large amount of keys again and patrols. Meanwhile, the room user can carry the sub-key, and daily room use is not influenced.

Drawings

The specific structure of the application is given by the following figures and examples:

FIG. 1 is a schematic sectional view of a sub-key A inserted into a lock A;

FIG. 2 is a schematic cross-sectional view of the sub-key B inserted into the lock B;

FIG. 3 is a schematic sectional view of the lock A with the master key inserted therein;

FIG. 4 is a schematic sectional view of the master key inserted into the lock B;

fig. 5 is a schematic sectional view of the lock a when the child key and the master key are not inserted.

Legend: 1. outer lock core, 2, inner lock core, 3, sub-key A, 4, one-level marble, 5, second grade marble, 6, tertiary marble, 7, sub-key B, 8, master key, 9, spring, 10, spacing arch.

Detailed Description

The present application is not limited to the following examples, and specific implementations may be determined according to the technical solutions and practical situations of the present application.

In the present invention, for convenience of description, the description of the relative position relationship of the components is described according to the layout mode of the attached drawing 1 in the specification, such as: the positional relationship of up, down, left, right, etc. is determined in accordance with the layout direction of fig. 1 in the specification.

The invention will be further described with reference to the following examples and drawings, in which: as shown in the attached figures 1-4, the double-key primary-secondary simultaneous unlocking lock comprises a plurality of independent locks, each lock is provided with an outer lock cylinder 1 and an inner lock cylinder 2, and a lock hole into which a secondary key or a primary key can be inserted is formed in the inner lock cylinder 2; a plurality of marble holes are formed in the outer lock cylinder 1 and the inner lock cylinder 2 of each lock, and a first-stage marble 4, a second-stage marble 5 and a third-stage marble 6 are placed in each marble hole; each lock is provided with a subkey and all locks are provided with a master key 8.

As shown in fig. 1-4, the marble holes include an outer hole formed on the outer lock cylinder 1 and an inner hole formed on the inner lock cylinder 2, the inner hole penetrates through the inner lock cylinder 2, and the outer hole is communicated with the inner hole; a third-stage marble 6 is placed in the outer hole, and a spring 9 for applying thrust to the third-stage marble 6 is arranged between the third-stage marble 6 and the bottom surface of the outer hole; a first-class marble 4 is placed in the inner hole; a secondary marble 5 is placed between the primary marble 4 and the tertiary marble 6.

The three-level marbles 6 in each marble hole in the same lock are equal in length, the two-level marbles 5 are unequal or equal in length, and the first-level marbles 4 are unequal in length.

The three-level marbles 6 in different locks are equal in length, the two-level marbles 5 are different in length, and the one-level marbles 4 are different in length.

As shown in fig. 1-4, the sub-key includes a key head that can be inserted into the inner lock cylinder 2, a key handle is integrally connected to the rear end of the key head, and two sides of the connection between the key head and the key handle are provided with limiting pieces. The key head comprises a leveling part provided with teeth and a body. The body is provided with a limiting groove, and a limiting bulge corresponding to the limiting groove is arranged in the lock hole of the inner lock cylinder 2 to ensure the accuracy of the position of the sub-key when the sub-key is inserted into the lock hole.

The master key 8 comprises a key head which can be inserted into the inner lock cylinder 2, the rear end of the key head is integrally connected with a key handle, and two sides of the joint of the key head and the key handle are provided with limiting pieces. The key head comprises a leveling part provided with teeth and a body. The body is provided with a limiting groove, and a limiting bulge corresponding to the limiting groove is arranged in the lockhole of the inner lock cylinder 2 to ensure the accuracy of the position of the master key when the master key is inserted into the lockhole.

The width of the leveling part of the master key 8 is smaller than that of the slave key. Further, the leveling width of the master key is 2/3 of the leveling width of the slave key.

When the sub-key is configured to the lock, that is, the sub-key is leveled, the sub-key A is configured to the lock A firstly, as shown in fig. 1, grooves with different depths are formed in the positions of the corresponding marble holes of the sub-key A, the lock hole is inserted, so that the one-level marble 4 in the lock A is positioned in the inner hole of the inner lock cylinder 2, the three-level marble 6 and the two-level marble 5 are positioned in the outer hole of the outer lock cylinder 1, the butt joint of the one-level marble 4 and the two-level marble 5 is aligned with the contact positions of the inner lock cylinder 2 and the outer lock cylinder 1, the alignment of the inner lock cylinder 2 can be achieved, and the leveling of the sub-key.

As shown in fig. 5, the sub-key a is pulled out, the first-stage marble 4 continues to extend under the pushing of the spring 9, and at this time, a part of the third-stage marble 5 enters the inner hole, so that the inner lock core 2 cannot rotate, and the lock a is locked.

Then, a master key 8 is configured on the lock A, namely the master key 8 is leveled, as shown in fig. 3, grooves with different depths are formed in the position, corresponding to the ball ejecting hole, of the master key 8, the shape of the groove is the same as that of the groove of the sub-key A, and the depth of the groove is different. After inserting the lockhole for one-level marble 4, second grade marble 5 in the lock A are located the interior downthehole on the internal lock core 2, and tertiary marble 6 is located the outer downthehole on the external lock core 1, and the butt joint department of second grade marble 5 and tertiary marble 6 aligns with the contact site of internal lock core 2, external lock core 1, and internal lock core 2 can rotate as accurate, accomplishes making level of female key to lock A.

The female key 8 is pulled out, the first-level marble 4 continues to extend out under the pushing of the spring 9, and at the moment, a part of the third-level marble 5 enters the inner hole, so that the inner lock core 2 cannot rotate, and the lock A is locked.

Then the master key 8 makes level to lock B, as shown in fig. 4, because the recess on the master key has been fixed, need be according to 4 lengths of one-level marble in the lock B this moment, adjust the length of second grade marble 5, make one-level marble 4 in the lock B, second grade marble 5 is located the interior downthehole on the lock core 2, tertiary marble 6 is located the outer downthehole on the outer lock core 1, the butt joint department of second grade marble 5 and tertiary marble 6 aligns with inner lock core 2, the contact site of outer lock core 1, interior lock core 2 can rotate as the standard, accomplish the master key and make level to lock A. For example: when 4 tops of one-level marble touched the recess on the female key, 4 lower extremes of one-level marble were 3mm apart from hole lower extreme distance, then need set up including 5 length of second grade marble place for 3mm downtheholely to make 5 lower extremes of second grade marble align with the hole lower extreme, blockked tertiary marble 6 and get into the hole, interior lock core 2 can rotate, forms and unblanks.

Accomplish the back of making level of master key 8 to lock B, carry out making level of sub-key B to lock B, as shown in fig. 2, make one-level marble 4 in the lock B, second grade marble 5 is located the interior downthehole on interior lock core 2, tertiary marble 6 is located the outer downthehole on outer lock core 1, the butt joint department and interior lock core 2 of second grade marble 5 and tertiary marble 6, the contact site of outer lock core 1 aligns, interior lock core 2 can rotate for the standard, according to the extension length of one-level marble 4, the recess that corresponds is seted up to the portion of making level at sub-key B. For example: the first-level marble 4 needs to stretch out for 1mm, then need set up the recess that is not shallow than 1mm in the portion of making level of sub-key B, and 4 tops of first-level marble or top both sides are touched with this recess inner wall top, and the length that stretches out of first-level marble 4 is 1mm, forms and unblanks. If the groove is an arc-shaped groove, the top end of the first-stage marble 4 is in top contact with the deepest part of the groove, and the depth of the groove is 1 mm; if the groove is an angular groove, two sides of the top of the first-stage marble 4 are in top contact with inner walls of two sides of the groove, and a gap is reserved between the top of the first-stage marble 4 and the deepest part of the groove, so that the depth of the groove is larger than 1 mm.

By analogy, the leveling of the master key 8 is firstly carried out on each subsequent lock, then the leveling of the corresponding sub-key is carried out, and finally the purpose that one lock corresponds to one sub-key and all locks correspond to one master key 8 is achieved. Because the primary marbles 4 in different locks are not equal in length and the primary marbles 4 in the same lock are not equal in length, the grooves on the secondary keys are not consistent, and the lengths of the secondary marbles 5 required by the primary key 8 for leveling subsequent locks are not consistent, so that the secondary keys can only unlock the corresponding locks, and the primary key 8 can unlock all the locks.

The foregoing description is by way of example only and is not intended as limiting the embodiments of the present application. All obvious variations and modifications of the present invention are within the scope of the present invention.

Claims

1. The utility model provides a double key primary and secondary is with opening set lock which characterized in that: the lock comprises a plurality of independent locks, each lock is provided with an outer lock core and an inner lock core, and a lock hole into which a sub key or a master key can be inserted is formed in the inner lock core; a plurality of marble holes are formed in the outer lock core and the inner lock core of each lock, and a first-stage marble, a second-stage marble and a third-stage marble are placed in each marble hole; each lock is provided with a sub-key, and all the locks are provided with a master key together;

the sub-key comprises a key head which can be inserted into the inner lock cylinder, the rear end of the key head is integrally connected with a key handle, and two sides of the joint of the key head and the key handle are provided with limiting pieces; the key head comprises a leveling part provided with teeth and a body; a limiting groove is formed in the body, and a limiting bulge corresponding to the limiting groove is arranged in the lock hole of the inner lock cylinder;

the master key comprises a key head which can be inserted into the inner lock cylinder, the rear end of the key head is integrally connected with a key handle, and two sides of the joint of the key head and the key handle are provided with limiting pieces; the key head comprises a leveling part provided with teeth and a body; a limiting groove is formed in the body, and a limiting bulge corresponding to the limiting groove is arranged in the lock hole of the inner lock cylinder.

2. The dual key primary and secondary lock set according to claim 1, wherein: the marble holes comprise outer holes formed in the outer lock cylinder and inner holes formed in the inner lock cylinder, the inner holes penetrate through the inner lock cylinder, and the outer holes are communicated with the inner holes; a third-stage marble is placed in the outer hole, and a spring used for applying thrust to the third-stage marble is arranged between the third-stage marble and the bottom surface of the outer hole; a first-grade marble is placed in the inner hole; a second-level marble is arranged between the first-level marble and the third-level marble.

3. A dual key primary and secondary lock according to claim 1 or 2, wherein: the third-level marbles in each marble hole in the same lock are equal in length, the second-level marbles are unequal or equal in length, and the first-level marbles are unequal in length.

4. The dual key primary and secondary lock set according to claim 3, wherein: the third-level marbles in different locks are equal in length, the second-level marbles are unequal in length, and the first-level marbles are unequal in length.

5. The dual key primary and secondary lock set according to claim 1, wherein: the width of the leveling part of the master key is smaller than that of the leveling part of the slave key.

6. The dual key primary and secondary lock set according to claim 5, wherein: further, the leveling width of the master key is 2/3 of the leveling width of the slave key.