阅读说明：本技术 互开率低的锁芯总成及钥匙 (Lock cylinder assembly with low mutual opening rate and key ) 是由 黄旭军 于 2021-02-06 设计创作，主要内容包括：本发明公开了互开率低的锁芯总成及钥匙,它包括锁头体,锁头体内连接有能够转动的锁芯；锁芯的侧壁上设有多个任意圆周分布和任意轴向分布的弹子孔,弹子孔内设置有弹子组件；所述锁头体的侧壁上设有多个与弹子孔一一对应的安装孔,锁芯中部设有圆形的钥匙孔；该钥匙包括圆柱状的钥匙头和连接在钥匙头上的钥匙柄,钥匙头与权利要求1中的钥匙孔适配；所述钥匙头的侧面上设有多个圆周分布和轴向分布且与权利要求1中的弹子孔位置一一对应的牙花坑,牙花坑的形状与对应弹子孔中弹子组件的端部形状适配。本发明不仅具有互开率低的优点,还能够方便使用和提高防盗性能。(The invention discloses a lock cylinder assembly and a key with low mutual opening rate, which comprise a lock cylinder body, wherein a lock cylinder capable of rotating is connected in the lock cylinder body; a plurality of bullet holes which are distributed at random circumference and at random axial direction are arranged on the side wall of the lock core, and bullet assemblies are arranged in the bullet holes; the side wall of the lock head body is provided with a plurality of mounting holes which are in one-to-one correspondence with the pin holes, and the middle part of the lock core is provided with a circular key hole; the key comprising a cylindrical key head and a key handle attached to the key head, the key head being adapted to the keyway of claim 1; the side surface of the key head is provided with a plurality of tooth pits which are distributed circumferentially and axially and correspond to the positions of the bullet holes in the claim 1 one by one, and the shape of each tooth pit is matched with the shape of the end part of each bullet assembly in the corresponding bullet hole. The invention has the advantages of low mutual opening rate, convenient use and improved anti-theft performance.)

1. Lock core assembly that each other open rate is low, its characterized in that: comprises a lock head body (1), wherein a lock core (2) capable of rotating is connected in the lock head body (1); a plurality of bullet holes (3) which are distributed at random circumference and at random axial direction are arranged on the side wall of the lock core (2), and bullet assemblies (4) are arranged in the bullet holes (3); the lock is characterized in that a plurality of mounting holes (5) corresponding to the pin holes (3) one by one are formed in the side wall of the lock body (1), and a circular key hole (6) is formed in the middle of the lock core (2).

2. The low-mutual-opening-rate lock cylinder assembly according to claim 1, characterized in that: the bullet assembly (4) comprises a bullet (41), a top column (42) and a spring (43) which are sequentially in contact arrangement, the bullet (41) can move in a bullet hole (3) and extend into a key hole (6), and the top column (42) can move between a mounting hole (5) and the bullet hole (3); one end of the mounting hole (5) is connected with the sealing piece (44), and one end of the spring (43) is connected with the sealing piece (44).

3. The low-mutual-opening-rate lock cylinder assembly according to claim 1, characterized in that: the bullet holes (3) have various hole diameters, and the bullet assemblies (4) have various sizes and/or various shapes.

4. The low-mutual-opening-rate lock cylinder assembly according to claim 1, characterized in that: the lock is characterized in that a pin hole (7) is formed in the lock body (1), a pin (8) is arranged in the pin hole (7), and an annular groove (9) is formed in the position, corresponding to the pin (8), of the lock core (2).

5. The low mutual opening rate lock cylinder assembly according to any one of claims 1 to 4, wherein: and a poking-proof rod (10) is arranged in the key hole (6).

6. A key, characterized by: comprising a cylindrical key head (11) and a key shank (12) connected to the key head (11), the key head (11) being adapted to the key hole (6) of claim 1; the side surface of the key head (11) is provided with a plurality of tooth pits (13) which are distributed circumferentially and axially and correspond to the positions of the bullet holes (3) in the claim 1 one by one, and the shape of each tooth pit (13) is matched with the shape of the end part of each bullet assembly (4) in the corresponding bullet hole (3).

7. A key suitable for use in the low mutual opening rate lock cylinder assembly of claim 5, wherein: comprising a cylindrical key head (11) and a key shank (12) connected to the key head (11), the key head (11) being adapted to the key hole (6) of claim 1; a plurality of tooth pits (13) which are circumferentially distributed and axially distributed and correspond to the positions of the bullet holes (3) one by one are arranged on the side surface of the key head (11), and the shape of each tooth pit (13) is matched with the shape of the end part of each bullet assembly (4) in the corresponding bullet hole (3); the key head (11) is provided with an opening (14) which is matched and connected with the poking-proof rod (10).

Technical Field

The invention relates to a lock cylinder assembly and a key, in particular to a lock cylinder assembly key with low mutual unlocking rate.

Background

The lock core assembly adopted in the existing lock generally comprises a lock core body, a lock core and a pin tumbler component, wherein a key hole on the lock core is generally a flat hole or a cross hole and other structures; the key matched with the lock cylinder assembly is generally required to be provided with the convex ribs to be matched with the key hole, and the positions, corresponding to the teeth on the convex ribs, on the lock cylinder are provided with the marble holes and the marble components, so that the matched key can be inserted into the key hole and then can jack each marble to an unlocking position through the teeth, and the lock cylinder can rotate in the lock cylinder body to realize unlocking and locking; the lock core assembly with the structure has the advantages that the number of the marbles in the lock core assembly is small, the arrangement mode of the marbles is limited, the quantity of the secret keys is limited, the mutual opening condition is easy to occur, and the mutual opening rate is high; when the key is used for unlocking, the key can be unlocked only by aligning the position of the convex rib, so that the key is inconvenient to use, and is particularly inconvenient to use under the dark environment such as at night. Therefore, the existing lock cylinder assembly and key structure have the problems of higher mutual opening rate and inconvenient use.

Disclosure of Invention

The invention aims to provide a lock cylinder assembly and a key with low mutual opening rate. The invention has the advantages of low mutual opening rate and convenient use.

The technical scheme of the invention is as follows: a lock core assembly with low mutual opening rate comprises a lock head body, wherein a lock core capable of rotating is connected in the lock head body; a plurality of bullet holes which are distributed at random circumference and at random axial direction are arranged on the side wall of the lock core, and bullet assemblies are arranged in the bullet holes; the side wall of the lock body is provided with a plurality of mounting holes which are in one-to-one correspondence with the spring holes, and the middle part of the lock core is provided with a circular key hole.

In the lock cylinder assembly with a low mutual opening rate, the pin tumbler assembly comprises pin tumblers, a top column and a spring which are sequentially arranged in a contact manner, and one end of the spring is connected with the bottom of the mounting hole; the marble can move in the marble hole and extend into the key hole, and the top column can move between the mounting hole and the marble hole; one end of the mounting hole is connected with the sealing piece, and one end of the spring is connected with the sealing piece.

In the aforementioned low-mutual-opening-rate lock cylinder assembly, the pin hole has a plurality of hole diameters, and the pin member has a plurality of sizes and/or a plurality of shapes.

In the lock cylinder assembly with the low mutual opening rate, the lock cylinder body is provided with the pin hole, the pin is arranged in the pin hole, the position of the lock cylinder corresponding to the pin is provided with the annular groove, the annular groove can limit the rotation angle of the lock cylinder, and the lock cylinder cannot fall off from the lock cylinder body by matching with the pin.

In the lock cylinder assembly with low mutual opening rate, the anti-poking rod is arranged in the key hole.

A key comprises a cylindrical key head and a key handle connected to the key head, wherein the key head is matched with the key hole; the side face of the key head is provided with a plurality of tooth pits which are circumferentially distributed and axially distributed and correspond to the positions of the bullet holes one by one, the shape of each tooth pit is matched with the shape of the end part of each bullet component in the corresponding bullet hole, and the tooth pits can re-extrude the tooth pits of the bullet components which mistakenly fall into the tooth pits when rotating along with the key head, so that the key can idle.

A key suitable for the lock cylinder assembly with the low mutual opening rate comprises a cylindrical key head and a key handle connected to the key head, wherein the key head is matched with the key hole; a plurality of tooth pits which are circumferentially distributed and axially distributed and correspond to the positions of the bullet holes one by one are arranged on the side surface of the key head, and the shape of each tooth pit is matched with the shape of the end part of each bullet assembly in the corresponding bullet hole; the key head is provided with a hole which is connected with the poking-proof rod in a matching way.

Compared with the prior art, the invention improves the existing lock core assembly and key structure, the lock core with a circular key hole is arranged to be matched with the key of a cylindrical key head for use, and the side wall of the lock core is provided with a plurality of bullet holes which are distributed at any annular circumference and any axial direction to be matched with the tooth pits distributed on the cylindrical side surface of the key head for use, thereby greatly increasing the number and the arrangement mode of the bullet components and the tooth pits, greatly increasing the number of keys and reducing the mutual opening rate; meanwhile, the round key hole and the cylindrical key head can be used for avoiding the alignment operation when the key is inserted into the key hole, so that the key can be conveniently inserted into the key hole to be unlocked, and the key is particularly convenient to use under the condition of dark environment such as night. In addition, the invention can also adopt bullet holes with various apertures to be combined for use, the matched bullet components can also adopt various sizes, and further can adopt bullet components with different shapes (such as pointed bullets, spherical bullets, step bullets, hollow bullets and the like) to be combined for use, thereby further improving the number of secret keys; meanwhile, the anti-poking rod is arranged to be matched with the round key hole for use, so that the anti-poking marble effect can be achieved, technical unlocking is avoided, the anti-theft performance is improved, the anti-poking rod can also be matched with the hole in the key to guide the key when the key is inserted, the anti-poking rod is further convenient to use, when the key is not inserted, the anti-poking rod is utilized to limit the marble component, the marble component is prevented from falling off from the marble hole, and therefore a seam allowance for preventing the marble component from falling off is arranged on the marble hole, and the marble component with more shapes can be conveniently selected; the invention also sets the shape of the tooth pit in a matching way with the end shape of the bullet component in the corresponding bullet hole, when the key is not matched, the tooth pit can re-extrude the bullet component which is mistakenly dropped into the tooth pit when rotating along with the key head to the tooth pit, thereby realizing the idle running of the key, avoiding the condition that the key using the similar combined tooth pit is opened strongly (when only a few tooth pits have smaller deviation with the bullet component, the force is too large to extrude the unmatched and matched bullet component), and further improving the anti-theft performance. Therefore, the invention not only has the advantage of low mutual opening rate, but also can be conveniently used and improve the anti-theft performance.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a lock cylinder assembly;

FIG. 3 is an exploded view of the lock cylinder assembly;

FIG. 4 is a cross-sectional view of the lock cylinder assembly;

FIG. 5 is another cross-sectional view of the lock cylinder assembly;

FIG. 6 is a schematic view of the key construction;

FIG. 7 is a key cut-away view of the optimization;

fig. 8 is a side expanded view of the key head.

The labels in the figures are: 1-a lock body, 2-a lock core, 3-a marble hole, 4-a marble component, 5-a mounting hole, 6-a keyhole, 7-a pinhole, 8-a dowel, 9-a slot, 10-a deflector rod, 11-a key head, 12-a key handle, 13-a tooth pit, 14-a hole, 41-a marble, 42-a top column, 43-a spring and 44-a sealing sheet.

Detailed Description

The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention.

The first embodiment. A lock cylinder assembly with a low mutual opening rate, as shown in fig. 1 to 5, comprises a lock cylinder body 1, wherein a lock cylinder 2 capable of rotating is connected in the lock cylinder body 1; a plurality of bullet holes 3 which are distributed at random circumference and at random axial direction are arranged on the side wall of the lock core 2, and bullet components 4 are arranged in the bullet holes 3; the side wall of the lock body 1 is provided with a plurality of mounting holes 5 which are in one-to-one correspondence with the ball holes 3, and the middle part of the lock core 2 is provided with a circular key hole 6.

The bullet assembly 4 comprises a bullet 41, a top column 42 and a spring 43 which are sequentially arranged in a contact manner, and one end of the spring 43 is connected with the bottom of the mounting hole 5; the pin 41 can move in the pin hole 3 and extend into the key hole 6, and the top column 42 can move between the mounting hole 5 and the pin hole 3; one end of the mounting hole 5 is connected with a sealing sheet 44, and one end of the spring 43 is connected with the sealing sheet 44; the bullet hole 3 has various hole diameters, and the bullet assembly 4 has various sizes and/or various shapes; the lock cylinder is characterized in that the lock cylinder body 1 is provided with a pin hole 7, a pin 8 is arranged in the pin hole 7, an annular groove 9 is arranged at the position, corresponding to the pin 8, on the lock cylinder 2, the annular groove 9 can be generally arranged at a corner of 90 degrees, the rotation angle of the lock cylinder 2 can be limited within 90 degrees, and the lock cylinder 2 cannot fall off from the lock cylinder body 1 by matching with the pin 8.

A key, as shown in fig. 6 and 8, comprising a cylindrical key head 11 and a key shank 12 attached to the key head 11, the key head 11 being fitted into the key hole 6 of claim 1; the side surface of the key head 11 is provided with a plurality of tooth pits 13 which are distributed circumferentially and axially and correspond to the positions of the bullet holes 3 in the claim 1 one by one, and the shape of the tooth pits 13 is matched with the shape of the end parts of the bullet assemblies 4 in the corresponding bullet holes 3.

The working principle is as follows: when the bullet pin is used, the key head 11 is inserted into the key hole 6, and the end part of the key head 11 is provided with the chamfer angle, so that the bullet component 4 can be conveniently extruded into the bullet hole 3, and the end part of the bullet component 4 is retracted into the bullet hole 3; at this time, the joint surface between the marble 41 and the top post 42 in the marble component 4 is not coincident with the joint surface between the mounting hole 5 and the marble hole 3, i.e. the marble 41 and the top post 42 prevent the lock core 2 from rotating; then the key handle 12 is rotated to enable the key head 11 to rotate in the lock cylinder 2, namely the key head 11 idles in the lock cylinder 2; after the tooth pits 13 on the key head 11 are matched with the corresponding bullet component 4, the bullet 41 can extend out of the bullet hole 3 and fall into the tooth pits 13 under the action of the spring 43 and the top column 42, so that the connecting surface between the bullet 41 and the top column 42 in the bullet component 4 is overlapped with the connecting surface between the mounting hole 5 and the bullet hole 3; when all the pin assemblies 4 are correspondingly engaged with the tooth flower pits 13, the lock cylinder 2 can be driven by the key head 11 to rotate, so that unlocking is realized.

When the bullet assembly 4 is not correspondingly engaged with the tooth pits 13, the lock cylinder 2 cannot rotate, and at the moment, the key head 11 is continuously rotated, so that the tooth pits 13 can extrude the bullet assembly 4 falling into the tooth pits into the bullet holes 3 again; the tooth pit 13 can be provided with a marble 41 with a spherical pit matching with the spherical end part, or can be provided with a marble 41 with a truncated cone matching with the chamfered end part, so that the marble 41 which does not correspond to the tooth pit 13 but falls into the tooth pit 13 can be extruded out when the tooth pit 13 rotates, namely, the tooth pit 13 can apply a force to the marble 41 to retract the marble 41 into the marble hole 3 when the tooth pit 13 rotates; so that the key head 11 which is not matched or not rotated and matched in place can idle in the key hole 6, and the strong opening or mutual opening is avoided; only when the tooth pits 13 on the key head 11 are matched with all the pin tumbler components 4 on the lock cylinder 2 one by one and the key head 11 rotates in place, the lock cylinder 2 can be driven to rotate to realize unlocking, and the anti-theft performance is improved. Wherein, the marbles 41 can adopt pointed marbles, spherical marbles, step marbles, hollow marbles and the like, and the number of the step marbles is at least 1; the arrangement of the tooth pits 13 on the key head 11 is that 1 or more tooth pits 13 can be arranged as long as the circumferential direction exceeds 3.5MM center distance, and the circumferential direction angle is not limited; the tooth pits 13 can be arranged at any position in the axial direction, and can be ordered at will as long as the center distance of the adjacent tooth pits 13 is not less than 3.5 MM; the head of the lock core 2 can be arranged into various shapes, and the tail of the lock core 2 can also be arranged into different shapes and structures to be used for realizing the opening and the locking without using lock bodies with different shapes and structures.

Example two. A lock cylinder assembly with a low mutual opening rate, as shown in fig. 1 to 5, comprises a lock cylinder body 1, wherein a lock cylinder 2 capable of rotating is connected in the lock cylinder body 1; a plurality of bullet holes 3 which are distributed at random circumference and at random axial direction are arranged on the side wall of the lock core 2, and bullet components 4 are arranged in the bullet holes 3; the side wall of the lock body 1 is provided with a plurality of mounting holes 5 which are in one-to-one correspondence with the ball holes 3, and the middle part of the lock core 2 is provided with a circular key hole 6.

The bullet assembly 4 comprises a bullet 41, a top column 42 and a spring 43 which are sequentially arranged in a contact manner, and one end of the spring 43 is connected with the bottom of the mounting hole 5; the pin 41 can move in the pin hole 3 and extend into the key hole 6, and the top column 42 can move between the mounting hole 5 and the pin hole 3; one end of the mounting hole 5 is connected with a sealing sheet 44, and one end of the spring 43 is connected with the sealing sheet 44; the bullet hole 3 has various hole diameters, and the bullet assembly 4 has various sizes and/or various shapes; a pin hole 7 is formed in the lock head body 1, a pin 8 is arranged in the pin hole 7, and an annular groove 9 is formed in the lock core 2 at a position corresponding to the pin 8; a poking-proof rod 10 is arranged in the key hole 6.

A key suitable for use in the aforementioned lock cylinder assembly having a low mutual opening rate, as shown in fig. 6, 7 and 8, comprising a cylindrical key head 11 and a key shank 12 attached to the key head 11, the key head 11 being adapted to the key hole 6 of claim 1; a plurality of tooth pits 13 which are circumferentially distributed and axially distributed and correspond to the positions of the bullet holes 3 one by one are arranged on the side surface of the key head 11, and the shape of each tooth pit 13 is matched with the shape of the end part of each bullet assembly 4 in the corresponding bullet hole 3; the key head 11 is provided with an opening 14 which is matched and connected with the poking prevention rod 10.

The working principle is as follows: when the key head 11 is inserted into the key hole 6, the opening 14 on the key head 11 is matched and sleeved with the poking prevention rod 10 in the lock cylinder 2, and the poking prevention rod 10 can guide the key head 11; meanwhile, the anti-theft rod 10 occupies the space of the key hole 6, and the marble 41 extends out of the marble hole 3 under the action of the spring 43, so that the distance between the end surface of the marble 41 and the anti-theft rod 10 is smaller or the end surface of the marble 41 is in contact with the anti-theft rod 10, the marble 41 can be prevented from being shifted by tools such as iron wires for technical unlocking, and the anti-theft performance is improved; in addition, the invention can also install the spring 43 by arranging a hollow hole at the tail part of the top column 42, thereby reducing the installation size requirement of the installation hole 5. The other principles are the same as those of the first embodiment.