CN209761036U

CN209761036U - Pin hole type lock body structure and changeable lock key structure

Info

Publication number: CN209761036U
Application number: CN201822140251.6U
Authority: CN
Inventors: 弋鹤鸣
Original assignee: Ge Heming
Current assignee: Ge Heming
Priority date: 2018-12-19
Filing date: 2018-12-19
Publication date: 2019-12-10
Anticipated expiration: 2028-12-19
Also published as: WO2020125687A1

Abstract

The utility model belongs to the technical field of security protection equipment, a pinhole formula lock body structure and convertible lock key structure are disclosed. The lock body structure utilizes the plug-in structure to unlock through the outer key hole and the inner key hole, key variables of unlocking of the lock body are changed into key needle entering amount from the structure inside the lock hole, and only when the key needle pushes the code to push the block to move for a specific distance, the contact surface of the locking block and the code to push the block can be coincided with the communication surface of the outer key hole and the inner key hole, so that unlocking is realized, and the safety and reliability of the lock body structure are higher. The key structure can provide various unlocking key needle layout schemes on one key structure by combining the variable dial and key needle structures, and the corresponding door leaf can be unlocked only by a specific layout scheme. Therefore, it is difficult to directly unlock the lock body even when the key is held by a non-user. The key structure increases the protection performance of the mechanical lock and increases the reliability of the mechanical lock. Therefore, the utility model discloses be fit for using widely.

Description

pin hole type lock body structure and changeable lock key structure

Technical Field

The utility model belongs to the technical field of security protection equipment, concretely relates to lock core and key structure especially relate to a pinhole formula lock body structure and convertible key structure.

background

The lock as a safety appliance is widely applied to daily families, industrial production, work and office and other aspects related to life and work of people, and has the function of closing or locking important objects and areas and can be opened only by specific personnel.

The existing locks mainly comprise an electronic lock and a mechanical lock, wherein the electronic lock controls a lock tongue by using technologies such as electricity, magnetism, network and the like, and because the electronic lock cannot work under the condition of power failure and is easy to be subjected to magnetic interference to cause misoperation, the application of the electronic lock has unstable factors, and the reliability of the electronic lock is still subject to many people's problems. The mechanical lock is a product of the traditional technology, and is continuously improved in the technology updating, the technology of the mechanical lock tends to be fine, and the reliability of the mechanical lock is far higher than that of an electronic lock.

the existing common mechanical lock almost needs to be unlocked by a key, and the key and the lock cylinder are usually matched by a plug-in structure to realize unlocking. The key is unlocked as the only unlocking mode of the plug-in mechanical lock, the potential safety hazard of the key is the safety of the key, the lock can be unlocked only by the key, and the unlocking process has no more protection, so that the safety of the traditional mechanical lock is mainly reflected in the storage of the key, the key cannot be lost, the structure cannot be leaked, and the possibility that the mechanical lock is illegally unlocked can be reduced.

The practical situation is that people often lose keys inadvertently, so that unlocking cannot be realized, and unlocking can only be realized by destroying a lock body or a door body, so that the lock cannot be used continuously, and people have to replace a lock cylinder; also, the lock body is provided with a keyhole, and the structure in the lock core may leak through the keyhole; therefore, lawbreakers can know the internal lock cylinder by observing the lock hole and simulate the structure of the key, so that the lock can be unlocked by using a special tool.

Therefore, the existing mechanical lock also has the reliability problem, and people cannot ensure the safety by using the mechanical lock. A more reasonable technical scheme needs to be provided, the structure of the existing mechanical lock is improved, and the technical problem existing in the prior art is solved.

SUMMERY OF THE UTILITY MODEL

the utility model provides a pinhole type lock body structure, aiming at improving the structure of a lock body, and the inside of the lock body can not be observed and known through a keyhole, and a corresponding key can not be copied; the structure that the lock body adopted is the combination of multiple complicated plug structure, has increased the degree of difficulty that the key realization of duplicating unblanked, and the plug structure of this lock body still can keep good mechanical properties after long-time the use simultaneously, guarantees the safe reliability of complex smoothness nature and lock body.

In order to realize the above effect, the utility model discloses the technical scheme who adopts does:

A pin hole type lock body structure comprises a lock shell and a lock cylinder which is rotatably arranged in the lock shell, wherein the lock cylinder and the lock shell are locked in a normal state, the lock cylinder cannot rotate, and a lock tongue cannot be driven to realize unlocking; after a correct key is used to contact the lock core and the lock shell is locked, the lock core can rotate relative to the lock shell, so that the lock tongue is driven to unlock. Specifically, a plurality of outer key holes are arranged in the area of the lock shell which is not penetrated by the rotating axis of the lock core, and a coding pushing block is arranged in each outer key hole in a sliding manner; the lock core is provided with an inner key hole corresponding to the outer key hole, a locking block and an elastic piece are arranged in the inner key hole, the inner key hole is coaxially communicated with the outer key hole, the upper end of the locking block penetrates through the communication position of the outer key hole and the inner key hole and is in contact with the code pushing block, and the elastic piece enables the locking block to be abutted against the code pushing block.

The lock body structure adopts the mode of arranging the outer key hole and the inner key hole to replace the lock hole on the traditional lock body, and the coding pushing block and the locking block are respectively arranged in the outer key hole and the inner key hole, and the unlocking is realized by utilizing the matching of the coding pushing block and the locking block. The sliding distance of the code pushing block in the outer keyhole is used as a key control variable for unlocking, and the variable cannot be known through external observation, so that the secrecy of unlocking information is good, and the safety degree is high.

The areas where the outer key hole and the inner key hole can be arranged on the lock shell comprise a plurality of outer surfaces of the lock shell, and after the locking block enters the outer key hole from the inner key hole, the lock core and the lock shell can be clamped to limit the relative rotation of the lock core and the lock shell.

furthermore, the technical scheme is optimized, and a preferable technical scheme is provided, wherein the outer key hole is positioned on the lock shell and is vertical to the lock disk surface of the lock core rotating shaft center, and the outer key hole is arranged on the circumference of a concentric circle. In the scheme, the coding pushing block and the locking block are arranged according to the extending direction of the rotating shaft center of the lock cylinder, and slide in the shaft center direction to realize unlocking and locking.

The technical scheme is optimized, and another preferable technical scheme is provided, wherein the outer key hole is positioned on the side surface vertical to the lock disc, the outer key hole is vertical to the rotation axis of the lock core and is arranged along the direction of the radius of a circle with the axis as the center of the circle, and the inner key hole on the lock core is arranged corresponding to the outer key hole. When the locking block extends into the outer key hole from the inner key hole, the lock core and the lock shell are locked; the code pushing block is pushed to move towards the axis, and when the contact surfaces of the code pushing block and the locking block are superposed with the communication surface of the inner key hole and the outer key hole, the lock core and the lock shell can rotate relatively.

Furthermore, the technical scheme is optimized, and the coding pushing block arranged in the outer key hole comprises a cylindrical linear pushing block and/or a spherical convex pushing block. When the coding pushing blocks with different shapes slide in the outer key hole, the sliding smoothness and the stability keeping degree are different.

Preferably, when the coding pushing block adopts a cylindrical linear pushing block, the coding pushing block comprises two sections of cylinders with different diameters, and the outer key hole comprises two sections of round holes with different apertures. The thinner section of the coding pushing block is positioned in a section of circular hole of the outer key hole close to the outer surface of the lock shell, and the thicker section of the coding pushing block is positioned in a section of the outer key hole close to the inner surface of the lock shell. The advantage of this arrangement is that the code pusher block does not fall out of the outer key hole.

Furthermore, the relative clamping and locking of the lock cylinder and the lock shell depends on the locking action of the locking block at the communication position of the lock cylinder and the lock shell, the structure is relatively single, the technical scheme is optimized, the locking position and the locking quantity are increased, the lock shell and the lock cylinder are mutually nested, a lock shell sliding groove is arranged on the lock shell, the lock cylinder is provided with a lock cylinder sliding groove correspondingly communicated with the lock shell sliding groove, and the lower end of the lock cylinder sliding groove is communicated with a lock cylinder annular groove; the locking block is provided with a radial convex block, the radial convex block penetrates through the lock shell sliding groove to enter the lock core sliding groove and limit the lock shell and the lock core to rotate relatively, and the coding pushing block pushes the locking block to move downwards to enable the radial convex block to slide into the lock core annular groove, so that the lock shell and the lock core can rotate relatively.

Furthermore, when the lock cylinder is arranged inside the lock shell, after the coding pushing block and the locking block reach the unlocking position, the lock cylinder and the lock shell have a movement trend of relative rotation, so that the lock cylinder can rotate relative to the lock shell as long as a certain torque is given to the lock cylinder. To realize the operation, the torque transmission is generally realized through the transmission rod, so the technical scheme is optimized, a circular outer key rod hole is arranged in the area, corresponding to the rotation axis of the lock cylinder, of the lock shell, an inner key rod hole is arranged at the rotation axis of the lock cylinder, the area of the bottom of the inner key rod hole is smaller than or equal to the area of the hole opening of the inner key rod hole, and the cross section of the bottom of the inner key rod hole is in any shape except the circular shape. The key rod for transmitting the torque is inserted into the outer key rod, the key rod enters the inner key rod hole and then is clamped with the bottom of the inner key rod hole, and the lock cylinder rotates along with the rotation of the key rod to realize the transmission of the torque; at the same time, the key rod and the corresponding part of the outer key rod hole are in the original shape, so that the lock shell is kept still, and the key rod and the lock shell rotate relatively.

Preferably, the cross section of the bottom of the inner key hole can adopt a polygonal shape, an oval shape and the like which are convenient for clamping and locking.

Furthermore, the lock cylinder and the lock shell rotate relatively to unlock, the lock cylinder and the lock shell need to be reset after one-time unlocking is finished, so that the lock can be locked again, the relative rotation angle of the lock cylinder and the lock shell is manually set, and the lock cylinder and the lock shell are not convenient to accurately control during returning, so that the technical scheme is optimized, and the reset device is arranged between the lock cylinder and the lock shell and enables the lock cylinder and the lock shell to rotate to the initial matching position after rotating relatively. The reset device is used for resetting, so that the resetting is simpler and faster, and the trouble of manual resetting is avoided.

preferably, a groove can be formed in the relative rotation surface of the lock core and the lock shell, a reset elastic part of a torsion spring type is arranged in the groove, when the lock core and the lock shell rotate relatively, the reset elastic part generates restoring force, and after unlocking is completed, the lock core can rotate to the initial position under the action of the restoring force of the reset elastic part.

Furthermore, the lock core and the lock shell rotate relatively to a certain angle to realize unlocking, and the rotation angle is too large to be beneficial. Therefore, the technical scheme is optimized, the rotation angle of the lock cylinder and the lock shell is limited within a reasonable range, a limiting structure is arranged between the lock cylinder and the lock shell, and the limiting structure enables the lock cylinder and the lock shell to rotate relatively within the limited angle range.

Preferably, a limiting groove and a limiting block can be arranged on a relative rotation surface of the lock cylinder and the lock shell, the limiting block is located at one end of the limiting groove in a lock closing state, when the lock cylinder and the lock shell rotate relatively, the limiting block slides along the limiting groove, and when the lock cylinder rotates to reach an unlocking angle, the limiting block just reaches the other end of the limiting groove and supports tightly.

The utility model also provides another kind of lock body structure, the concrete technical scheme who adopts is:

A pin hole type lock body structure comprises a lock shell and a lock core which is rotatably arranged in the lock shell; specifically, the method comprises the following steps: a plurality of outer key holes are formed in the lock shell in the area which is not penetrated by the rotating axis of the lock core, and a coding pushing block is arranged in each outer key hole in a sliding manner; the lock core is provided with an inner key hole corresponding to the outer key hole, a locking block, a top cylinder and an extension spring are arranged in the inner key hole, the upper end of the locking block is connected with the coding pushing block, the extension spring is sleeved outside the coding pushing block or the locking block, the lower end of the extension spring is fixedly connected with the coding pushing block or the locking block, the top cylinder is sleeved outside the extension spring, and the top end of the extension spring is connected with the top end of the top cylinder; the lock comprises a lock shell, an inner key hole, a lock core, a lock shell sliding groove, a lock core ring groove and a lock core groove, wherein the inner key hole is coaxially communicated with the outer key hole; the locking block is provided with a radial convex block, the radial convex block penetrates through the lock shell sliding groove to enter the lock core sliding groove and limit the lock shell and the lock core to rotate relatively, and the coding pushing block pushes the locking block to move downwards to enable the radial convex block to slide into the lock core annular groove, so that the lock shell and the lock core can rotate relatively.

This technical scheme can set up the use alone, also can set up the use with a technical scheme cooperation, can reach more cooperation schemes, improves the fail safe nature of lock body.

The above description describes the lock body structure in terms of its composition and connection, and the following description describes the key structure used in conjunction with the lock body structure.

The utility model also provides a convertible key structure, this key structure cooperatees with the lock body in the above, aims at through the combination transform of key, corresponds with the plug structure of lock body, realizes unblanking. The key adopts a key needle structure, and can be changed in various key structures through combination modes such as layout, length and activity change of the key needle, and when the matching structure of the unlocking key and the lock body is unavailable, the unlocking can not be realized by directly adopting the key. When the lock is unlocked by using the key, an additional defense procedure appears, so that the safety problem of the lock is transferred from the storage of the key to the use of the key, and the safety level of the lock is improved. The key structure can perform structural locking hook conversion, so that a plurality of lock bodies can be unlocked by using one key. For example, the lock bodies are installed on a plurality of door leaves at home, and the difference is that the layout of key needles used in unlocking is different; under the condition, the utility model discloses a key can change different key needle layout structures, opens corresponding door leaf respectively, and is very convenient.

A changeable lock key structure can realize unlocking after being inserted into the lock body structure. The coded lock comprises a plurality of needle discs which are coaxially arranged, adjacent needle discs rotate relatively, key needles are arranged on the needle discs and correspond to outer key holes one by one, the key needles push a coded pushing block after being inserted into the outer key holes, when the key needles completely enter the outer key holes, the contact surfaces of the coded pushing block and a locking block are superposed with the communication surfaces of the outer key holes and the inner key holes, and the lock cylinder and a lock shell can rotate relatively.

The key structure disclosed above utilizes the key needle to push the code pushing block and the locking block to move a specific distance, and moves the code pushing block and the locking block to a position allowing the lock cylinder to rotate, thereby realizing unlocking. After the plurality of needle discs rotate relatively, the layout of the key needle changes, and only one specific layout can unlock a corresponding lock body, so that the structure of the key has the safety performance of preventing loss.

Furthermore, the technical scheme is optimized, the lock key structure corresponds to the lock shell structure, the key rod penetrates through the circle center of the needle disk and rotates relative to the needle disk, the key rod is matched with a hole channel formed by communicating the outer key rod hole and the inner key rod hole, and the front end of the key rod is correspondingly clamped with the bottom of the inner key rod hole in shape. When the key is inserted into the lock shell, the key needle realizes unlocking the code pushing block and the locking block, and the key rod is matched with the inner key hole to drive the lock core to rotate, so that final unlocking is realized.

Furthermore, the key rod needs to be rotated in the unlocking process, the torque is transmitted to the lock core from the key rod, and the tail end of the key rod is cylindrical and is not convenient to hold and rotate; therefore, the technical scheme is optimized, and the tail end of the spoon rod is also provided with a spoon handle which is contacted with the dial and rotates relatively. One of the functions of the key handle is to drive the key rod to rotate to transmit torque, and the other function of the key handle is to tightly abut against the needle disc, so that the key needle on the needle disc tightly abuts against the code pushing block, the code pushing block and the locking block are positioned at the unlocking position, and the trend of relative movement of the lock core and the lock shell is ensured.

Preferably, the spoon handle is contacted with the dial and relatively rotates, and the contact surface is provided with structures such as balls and/or rollers, so that the friction force between the spoon handle and the dial is reduced, and the relative movement is easier.

Further, optimize above-mentioned technical scheme, the change of key needle overall arrangement is realized in the relative rotation of adjacent dial, is equivalent to changing a set of password of unblanking, sets up the specific position of a certain amount as the unblock and treats selecting the password position in the rotation in-process of dial, promptly the dial is equipped with spring groove or spring hole, sets up clip spring and chucking marble in spring groove or the spring hole, is provided with the annular groove on the adjacent dial, and the annular groove communicates with spring groove or spring hole, and the interval is provided with sunken position in the annular groove, and the clip spring supports the chucking marble in the annular groove, and the chucking marble slides in the annular groove, when the chucking marble slides and blocks into sunken position, the mutual chucking of adjacent dial.

Preferably, when the needle dial is provided with the spring grooves, the abutting surfaces of the adjacent needle dials are also provided with the corresponding spring grooves, and the corresponding spring grooves form a passage for the telescopic movement of the spring together.

furthermore, the technical scheme is optimized, and for increasing the key needle layout scheme corresponding to the unlocking password, a disorderly key needle can be adopted, namely the key needle rotates relative to the dial, and the key needle rotates to be perpendicular to the dial or to be attached to the dial. In the partial unlocking scheme, only partial key needles are needed to be used, and the unused key needles are attached to the dial after being rotated.

And further, the technical scheme is continuously optimized, the number of the key needle layout schemes is increased, and meanwhile, in order to improve the certainty of identifying the unlocking scheme by a user, the dial and/or the lock shell are/is provided with coding marks, whether the unlocking scheme is correct or not is judged by utilizing different matching of the coding marks, and a specific lock body which can be correspondingly unlocked is determined.

Compared with the prior art, the beneficial effects of the utility model are that:

1. The utility model discloses a lock body structure, through setting up outer key hole and interior key hole, utilize the structure of plug-in to unblock, the key variable of unblanking with the lock body is changed into key needle entering volume by the inside structure of keyhole, only when key needle promotes the code and promotes the piece and remove this specific distance, just can promote the contact surface of piece and outer key hole and the intercommunication face coincidence of interior key hole with the code with the locking block to realize the unblock, this lock body structure's fail safe nature is higher.

2. The utility model discloses a key structure through combination changeable dial, key needle structure, can provide the key needle overall arrangement scheme of multiple unblock on a key structure, only specific overall arrangement scheme just can untie the door leaf that corresponds. Therefore, it is difficult to directly unlock the lock body even when the key is held by a non-user. The key structure changes the reliability of the mechanical lock from the keeping of the key to the use of the key, increases the protective performance of the mechanical lock, improves the opening difficulty of the mechanical lock, and increases the reliability of the mechanical lock.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic sectional view of the lock structure in embodiment 1.

fig. 2 is a schematic view of the layout of the outer key hole of the lock body structure in embodiment 1.

Fig. 3 is a schematic sectional view showing the lock structure in embodiment 2.

Fig. 4 is a schematic sectional view showing the lock structure in embodiment 5.

Fig. 5 is a schematic view of the cylinder lock slide groove and the cylinder lock ring groove in embodiment 4.

Fig. 6 is a schematic sectional view showing the lock structure in embodiment 6.

Fig. 7 is a schematic cross-sectional view at section a-a of the reduction device.

FIG. 8 is a schematic sectional view showing the lock structure in embodiment 7.

FIG. 9 is a schematic cross-sectional view of a B-B section of the spacing groove.

Fig. 10 is a schematic sectional view showing the key structure in embodiment 8.

fig. 11 is a schematic sectional view showing the key structure in embodiment 9.

fig. 12 is a schematic sectional view showing the key structure in embodiment 10.

Figure 13 is the sectional structure diagram of the lock body in the embodiment 4.

Fig. 14 is a schematic top view of the key.

In the above figures, the meaning of the reference numerals is: 1-a lock case; 2-outer keyhole; 3-coding a pushing block; 4-outer spoon rod hole; 5-a lock core; 501-a lock cylinder chute; 502-lock cylinder ring groove; 6-a locking block; 7-inner keyhole; 8-an elastic member; 9-a spoon rod; 10-dial; 11-a spoon needle; 12-a spoon handle; 13-a spring groove; 14-a snap spring; 15-clamping the marble; 16-inner spoon rod hole; 17-a groove; 18-a return spring; 19-a limit groove; 20-a limiting block; 21-a disc cap; 22-a key sleeve; 23-top cylinder; 24-spoon disk.

Detailed Description

The present invention will be further explained with reference to the drawings and the embodiments.

Example 1:

As shown in fig. 1 and fig. 2, the embodiment discloses a pin hole type lock body structure, which includes a lock case 1 and a lock cylinder 5 rotatably disposed in the lock case 1, wherein the lock cylinder 5 is locked with the lock case 1 in a normal state, the lock cylinder 5 cannot rotate, and the lock tongue cannot be driven to unlock; after the correct key is used to contact the lock core 5 and the lock of the lock shell 1, the lock core 5 can rotate relative to the lock shell 1, so as to drive the lock tongue to realize unlocking. Specifically, a plurality of outer key holes 2 are arranged on the lock shell 1 in the area which is not penetrated by the rotating axis of the lock core 5, and a coding pushing block 3 is arranged in each outer key hole 2 in a sliding way; an inner key hole 7 corresponding to the outer key hole 2 is formed in the lock cylinder 5, a locking block 6 and an elastic piece 8 are arranged in the inner key hole 7, the inner key hole 7 is coaxially communicated with the outer key hole 2, the upper end of the locking block 6 penetrates through the communication position of the outer key hole 2 and the inner key hole 7 and is in contact with the code pushing block 3, the elastic piece 8 enables the locking block 6 to be tightly abutted to the code pushing block 3, and particularly, the lower end of the locking block 6 is tightly abutted to the elastic piece 8. In particular, the elastic member 8 is a spring.

The lock body structure adopts the mode of arranging the outer key hole 2 and the inner key hole 7 to replace the lock hole on the traditional lock body, the coding pushing block 3 and the locking block 6 are respectively arranged in the outer key hole 2 and the inner key hole 7, and the unlocking is realized by utilizing the matching of the coding pushing block 3 and the locking block 6. The sliding distance of the coded pushing block 3 in the outer key hole 2 is used as a key control variable of unlocking, and the variable cannot be known through external observation, so that the secrecy of unlocking information is good, and the safety degree is high.

the area where the outer key hole 2 and the inner key hole 7 can be arranged on the lock shell 1 comprises a plurality of outer surfaces of the lock shell 1, and after the locking block 6 enters the outer key hole from the inner key hole 7, the lock core 5 and the lock shell 1 can be clamped to limit the relative rotation of the lock core and the lock shell.

In the embodiment, a preferable technical scheme is adopted, the outer key hole 2 is positioned on a lock disc surface of the lock shell 1 perpendicular to the rotation axis of the lock core 5, and the outer key hole 2 is arranged on the circumference of a concentric circle. In this scheme, the code pushing block 3 and the locking block 6 are both arranged according to the extending direction of the rotating shaft center of the lock core 5, and slide in the shaft center direction to realize unlocking and locking.

When the lock core 5 is arranged inside the lock shell 1, after the code pushing block and the locking block 6 reach the unlocking position, the lock core 5 and the lock shell 1 have the movement trend of relative rotation, so that the lock core 5 can rotate relative to the lock shell 1 as long as a certain torque is given to the lock core 5. To realize the operation, the torque transmission is generally realized through a transmission rod, so the technical scheme is optimized, a circular outer key rod hole 4 is arranged in the area, corresponding to the rotating axis of the lock core 5, of the lock shell 1, an inner key rod hole 16 is arranged at the rotating axis of the lock core 5, the hole bottom area of the inner key rod hole 16 is smaller than or equal to the area of the hole opening of the inner key rod hole 16, and the cross section of the hole bottom of the inner key rod hole 16 is in any shape except the circular shape. The arrangement is significant in that a key rod 9 for transmitting torque is inserted through the outer key rod 9, the key rod 9 enters the inner key rod hole 16 and then is clamped with the bottom of the inner key rod hole 16, and the lock cylinder 5 rotates along with the rotation of the key rod 9 to realize the transmission of the torque; at the same time, the key rod 9 and the outer key rod hole 4 are in the original shape, so the lock shell 1 is kept still, and the key rod 9 and the lock shell 1 rotate relatively.

The cross section of the bottom of the inner key hole 7 can adopt the shapes which are convenient for clamping and locking, such as a polygon, an ellipse and the like.

In the embodiment, the lock core and the lock shell rotate relatively, and the marble can be arranged between the lock core and the lock shell to realize smooth rotation.

Example 2:

As shown in fig. 3, the embodiment discloses a pin hole type lock body structure, which includes a lock case 1 and a lock cylinder 5 rotatably disposed in the lock case 1, wherein the lock cylinder 5 and the lock case 1 are locked in a normal state, the lock cylinder 5 cannot rotate, and the lock tongue cannot be driven to unlock; after the correct key is used to contact the lock core 5 and the lock of the lock shell 1, the lock core 5 can rotate relative to the lock shell 1, so as to drive the lock tongue to realize unlocking. Specifically, a plurality of outer key holes 2 are arranged on the lock shell 1 in the area which is not penetrated by the rotating axis of the lock core 5, and a coding pushing block 3 is arranged in each outer key hole 2 in a sliding way; an inner key hole 7 corresponding to the outer key hole 2 is formed in the lock cylinder 5, a locking block 6 and an elastic piece 8 are arranged in the inner key hole 7, the inner key hole 7 is coaxially communicated with the outer key hole 2, the upper end of the locking block 6 penetrates through the communication position of the outer key hole 2 and the inner key hole 7 and is in contact with the code pushing block 3, the elastic piece 8 enables the locking block 6 to be tightly abutted to the code pushing block 3, and particularly, the lower end of the locking block 6 is tightly abutted to the elastic piece 8.

The embodiment adopts a technical scheme different from that in embodiment 1, and the specific difference is that:

In the embodiment, the technical scheme is optimized, and another preferable technical scheme is provided, wherein the outer key hole 2 is positioned on the side surface vertical to the lock disc, the outer key hole 2 is vertical to the rotation axis of the lock core 5 and is arranged along the direction of the radius of a circle with the axis as the center of the circle, and the inner key hole 7 on the lock core 5 is arranged corresponding to the outer key hole 2. When the locking block 6 extends into the outer key hole 2 from the inner key hole 7, the lock core 5 and the lock shell 1 are locked; the code pushing block 3 is pushed to move towards the axis, and when the contact surfaces of the code pushing block 3 and the locking block 6 are superposed with the communication surface of the inner key hole 7 and the outer key hole 2, the lock core 5 and the lock shell 1 can rotate relatively.

The structure and connection relationship of other parts in this embodiment are the same as those in embodiment 1, and are not described here again.

Example 3:

The embodiment discloses a pinhole type lock body structure, which comprises a lock shell 1 and a lock cylinder 5 rotatably arranged in the lock shell 1, wherein the lock cylinder 5 and the lock shell 1 are locked in a normal state, the lock cylinder 5 cannot rotate, and a lock tongue cannot be driven to unlock; after the correct key is used to contact the lock core 5 and the lock of the lock shell 1, the lock core 5 can rotate relative to the lock shell 1, so as to drive the lock tongue to realize unlocking. Specifically, a plurality of outer key holes 2 are arranged on the lock shell 1 in the area which is not penetrated by the rotating axis of the lock core 5, and a coding pushing block 3 is arranged in each outer key hole 2 in a sliding way; an inner key hole 7 corresponding to the outer key hole 2 is formed in the lock cylinder 5, a locking block 6 and an elastic piece 8 are arranged in the inner key hole 7, the inner key hole 7 is coaxially communicated with the outer key hole 2, the upper end of the locking block 6 penetrates through the communication position of the outer key hole 2 and the inner key hole 7 and is in contact with the code pushing block 3, the elastic piece 8 enables the locking block 6 to be tightly abutted to the code pushing block 3, and particularly, the lower end of the locking block 6 is tightly abutted to the elastic piece 8.

In this embodiment, the above technical solution is optimized, and the code pushing block 3 disposed in the outer key hole 2 includes a cylindrical linear pushing block and/or a spherical convex pushing block. When the coding pushing block 3 with different shapes slides in the outer key hole 2, the sliding smoothness and the stability keeping degree are different.

When the coding pushing block 3 adopts a cylindrical linear pushing block, the coding pushing block 3 comprises two sections of cylinders with different diameters, and the outer key hole 2 comprises two sections of round holes with different diameters. The thinner section of the coding pushing block is positioned in a section of circular hole of the outer keyhole 2 close to the outer surface of the lock shell 1, and the thicker section of the coding pushing block is positioned in a section of the outer keyhole 2 close to the inner surface of the lock shell 1. This has the advantage that the code pusher block 3 does not fall out of the outer key hole 2.

Example 4:

As shown in fig. 13, this embodiment discloses a pin hole type lock body structure, which includes a lock case 1 and a lock cylinder 5 rotatably disposed in the lock case 1, where the lock cylinder 5 and the lock case 1 are locked in a normal state, the lock cylinder 5 cannot rotate, and cannot drive a lock tongue to unlock; after the correct key is used to contact the lock core 5 and the lock of the lock shell 1, the lock core 5 can rotate relative to the lock shell 1, so as to drive the lock tongue to realize unlocking. Specifically, the method comprises the following steps: a pin hole type lock body structure comprises a lock shell and a lock core which is rotatably arranged in the lock shell; specifically, the method comprises the following steps: a plurality of outer key holes are formed in the lock shell in the area which is not penetrated by the rotating axis of the lock core, and a coding pushing block is arranged in each outer key hole in a sliding manner; the lock core is provided with an inner key hole corresponding to the outer key hole, a locking block, a top cylinder and an extension spring are arranged in the inner key hole, the upper end of the locking block is connected with the coding pushing block, the extension spring is sleeved outside the coding pushing block or the locking block, the lower end of the extension spring is fixedly connected with the coding pushing block or the locking block, the top cylinder is sleeved outside the extension spring, and the top end of the extension spring is connected with the top end of the top cylinder; the lock comprises a lock shell, an inner key hole, a lock core, a lock shell sliding groove, a lock core ring groove and a lock core groove, wherein the inner key hole is coaxially communicated with the outer key hole; the locking block is provided with a radial convex block, the radial convex block penetrates through the lock shell sliding groove to enter the lock core sliding groove and limit the lock shell and the lock core to rotate relatively, and the coding pushing block pushes the locking block to move downwards to enable the radial convex block to slide into the lock core annular groove, so that the lock shell and the lock core can rotate relatively.

In the embodiment, the locking block is an elastic piece, when the lowest end of the locking block contacts the bottom of the inner key hole after the locking block descends, the radial convex block on the locking block just reaches the circular groove of the lock cylinder, and the lock cylinder and the lock shell can rotate relatively.

Example 5:

As shown in fig. 4, the embodiment discloses a pin hole type lock body structure, which includes a lock case 1 and a lock cylinder 5 rotatably disposed in the lock case 1, wherein the lock cylinder 5 and the lock case 1 are locked in a normal state, the lock cylinder 5 cannot rotate, and the lock tongue cannot be driven to unlock; after the correct key is used to contact the lock core 5 and the lock of the lock shell 1, the lock core 5 can rotate relative to the lock shell 1, so as to drive the lock tongue to realize unlocking. Specifically, a plurality of outer key holes 2 are arranged on the lock shell 1 in the area which is not penetrated by the rotating axis of the lock core 5, and a coding pushing block 3 is arranged in each outer key hole 2 in a sliding way; an inner key hole 7 corresponding to the outer key hole 2 is formed in the lock cylinder 5, a locking block 6 and an elastic piece 8 are arranged in the inner key hole 7, the inner key hole 7 is coaxially communicated with the outer key hole 2, the upper end of the locking block 6 penetrates through the communication position of the outer key hole 2 and the inner key hole 7 and is in contact with the code pushing block 3, the elastic piece 8 enables the locking block 6 to be tightly abutted to the code pushing block 3, and particularly, the lower end of the locking block 6 is tightly abutted to the elastic piece 8.

The embodiment adopts a technical scheme different from that in embodiment 4, and the specific difference is that:

As shown in fig. 5, in this embodiment, the relative engagement and locking of the lock cylinder and the lock shell depends on the locking action of the locking block at the communication position of the lock cylinder and the lock shell, the structure is relatively single, the above technical solution is optimized, the locking position and the locking quantity are increased, the lock shell and the lock cylinder are nested with each other, a lock shell sliding groove is arranged on the lock shell, the lock cylinder is provided with a lock cylinder sliding groove 501 correspondingly communicated with the lock shell sliding groove, and the lower end of the lock cylinder sliding groove is communicated with a lock cylinder annular groove 502; the locking block is provided with a radial convex block, the radial convex block penetrates through the lock shell sliding groove to enter the lock core sliding groove and limit the lock shell and the lock core to rotate relatively, and the coding pushing block pushes the locking block to move downwards to enable the radial convex block to slide into the lock core annular groove, so that the lock shell and the lock core can rotate relatively.

The structure and connection relationship of other parts in this embodiment are the same as those in embodiment 4, and are not described here again.

Example 6:

As shown in fig. 6, this embodiment discloses a pin hole type lock body structure, which includes a lock case 1 and a lock cylinder 5 rotatably disposed in the lock case 1, where the lock cylinder 5 and the lock case 1 are locked in a normal state, the lock cylinder 5 cannot rotate, and cannot drive a lock tongue to unlock; after the correct key is used to contact the lock core 5 and the lock of the lock shell 1, the lock core 5 can rotate relative to the lock shell 1, so as to drive the lock tongue to realize unlocking. Specifically, a plurality of outer key holes 2 are arranged on the lock shell 1 in the area which is not penetrated by the rotating axis of the lock core 5, and a coding pushing block 3 is arranged in each outer key hole 2 in a sliding way; an inner key hole 7 corresponding to the outer key hole 2 is formed in the lock cylinder 5, a locking block 6 and an elastic piece 8 are arranged in the inner key hole 7, the inner key hole 7 is coaxially communicated with the outer key hole 2, the upper end of the locking block 6 penetrates through the communication position of the outer key hole 2 and the inner key hole 7 and is in contact with the code pushing block 3, the elastic piece 8 enables the locking block 6 to be tightly abutted to the code pushing block 3, and particularly, the lower end of the locking block 6 is tightly abutted to the elastic piece 8.

In the embodiment, the lock cylinder and the lock shell rotate relatively to unlock, the lock cylinder and the lock shell need to be reset after one-time unlocking is finished, so that the lock can be locked again, the relative rotation angle of the lock cylinder and the lock shell is manually set, and the lock cylinder and the lock shell are not convenient to accurately control during returning, so that the technical scheme is optimized, and the reset device is arranged between the lock cylinder and the lock shell and enables the lock cylinder and the lock shell to rotate to the initial matching position after rotating relatively. The reset device is used for resetting, so that the resetting is simpler and faster, and the trouble of manual resetting is avoided.

Specifically, as shown in fig. 7, a groove 17 is arranged on the relative rotation surface of the lock core and the lock shell, and the groove can be arranged on the lock core or the lock shell; a reset elastic part 18 of a torsion spring is arranged in the groove, when the lock core and the lock shell rotate relatively, the reset elastic part generates restoring force, and after unlocking is completed, the lock core can rotate to the initial position under the action of the restoring force of the reset elastic part.

Example 7:

As shown in fig. 8, this embodiment discloses a pin hole type lock body structure, which includes a lock case 1 and a lock cylinder 5 rotatably disposed in the lock case 1, where the lock cylinder 5 and the lock case 1 are locked in a normal state, the lock cylinder 5 cannot rotate, and cannot drive a lock tongue to unlock; after the correct key is used to contact the lock core 5 and the lock of the lock shell 1, the lock core 5 can rotate relative to the lock shell 1, so as to drive the lock tongue to realize unlocking. Specifically, a plurality of outer key holes 2 are arranged on the lock shell 1 in the area which is not penetrated by the rotating axis of the lock core 5, and a coding pushing block 3 is arranged in each outer key hole 2 in a sliding way; an inner key hole 7 corresponding to the outer key hole 2 is formed in the lock cylinder 5, a locking block 6 and an elastic piece 8 are arranged in the inner key hole 7, the inner key hole 7 is coaxially communicated with the outer key hole 2, the upper end of the locking block 6 penetrates through the communication position of the outer key hole 2 and the inner key hole 7 and is in contact with the code pushing block 3, the elastic piece 8 enables the locking block 6 to be tightly abutted to the code pushing block 3, and particularly, the lower end of the locking block 6 is tightly abutted to the elastic piece 8.

in the embodiment, the lock core and the lock shell rotate relatively to a certain angle to realize unlocking, and the rotation angle is too large to be beneficial. Therefore, the technical scheme is optimized, the rotation angle of the lock cylinder and the lock shell is limited within a reasonable range, a limiting structure is arranged between the lock cylinder and the lock shell, and the limiting structure enables the lock cylinder and the lock shell to rotate relatively within the limited angle range.

Specifically, as shown in fig. 9, a limiting groove 19 and a limiting block 20 may be disposed on a relative rotation surface between the lock core and the lock shell, the limiting groove may be disposed on the lock core or the lock shell, and the limiting block is correspondingly disposed on the lock shell or the lock core; when the lock core rotates to reach the unlocking angle, the limiting block just reaches the other end of the limiting groove and abuts tightly.

Example 8:

The above embodiments 1 to 7 describe the lock body structure in terms of composition and connection, and the following describes a key structure used in cooperation with the lock body structure.

As shown in fig. 10, this embodiment discloses a changeable key structure, which is matched with the lock bodies in embodiments 1 to 3, and aims to realize unlocking by the combination and change of the key corresponding to the plug structure of the lock body. The key adopts a key needle 11 structure, and can be changed in various key structures through combination modes such as layout, length, activity change and the like of the key needle 11, and when the matching structure of the unlocking key and the lock body is unavailable, the unlocking can not be realized by directly adopting the key. When the lock is unlocked by using the key, an additional defense procedure appears, so that the safety problem of the lock is transferred from the storage of the key to the use of the key, and the safety level of the lock is improved. The key structure can perform structural locking hook conversion, so that a plurality of lock bodies can be unlocked by using one key. For example, the lock bodies are installed on a plurality of door leaves at home, and the difference is that the layout of the key needles 11 used in unlocking is different; under the condition, the utility model discloses a key can change different key needle 11 layout structures, opens corresponding door leaf respectively, and is very convenient.

The changeable lock and key structure can realize unlocking after being inserted into the lock body structure. Specifically, the lock comprises a plurality of needle discs 10 which are coaxially arranged, the adjacent needle discs 10 rotate relatively, key needles 11 are arranged on the needle discs 10, the key needles 11 correspond to the outer key holes 2 one by one, the key needles 11 are inserted into the outer key holes 2 to push the code pushing block 3, after the key needles 11 completely enter the outer key holes 2, the contact surfaces of the code pushing block 3 and the locking block 6 are superposed with the communication surfaces of the outer key holes 2 and the inner key holes 7, and the lock core 5 and the lock shell 1 can rotate relatively.

The key structure disclosed in the embodiment utilizes the key needle 11 to push the code pushing block 3 and the locking block 6 to move a specific distance and move the code pushing block and the locking block to a position allowing the lock core 5 to rotate, thereby realizing unlocking. After a plurality of needle discs 10 rotate relatively, the layout of the key needle 11 changes, and only a specific layout can unlock a corresponding lock body, so that the structure of the key has the safety performance of preventing loss. For specific explanation, in this embodiment, the number of the outer keyhole 2 layers is two, namely an outer keyhole and an inner keyhole, and each layer of the outer keyhole and the inner keyhole is four; the corresponding dial 10 is two in number, namely an outer layer dial 10 and an inner layer dial 10; the key needle 11 on the outer layer dial 10 corresponds to the outer layer hole, and the key needle 11 on the inner layer dial 10 corresponds to the inner layer hole.

In the embodiment, the technical scheme is optimized, the lock key structure corresponds to the structure of the lock shell 1, the key structure further comprises a key rod 9, the key rod 9 penetrates through the circle center of the dial 10 and rotates relative to the dial 10, the key rod 9 is matched with a hole channel formed by communicating the outer key rod hole 4 with the inner key rod hole 16, and the front end shape of the key rod 9 is correspondingly clamped with the bottom shape of the inner key rod hole 16. After the key is inserted into the lock shell 1, the key needle 11 realizes unlocking the code pushing block 3 and the locking block 6, the key rod 9 is matched with the inner key hole 7 to drive the lock core 5 to rotate, and final unlocking is realized.

The key rod 9 needs to be rotated in the unlocking process, the torque is transmitted to the lock core 5 from the key rod 9, and the tail end of the key rod 9 is cylindrical, so that the key rod is not convenient to hold and rotate; therefore, the technical scheme is optimized, the tail end of the spoon rod 9 is also provided with a spoon handle 12, and the spoon handle 12 is contacted with the dial 10 and rotates relatively. One of the functions of the key handle 12 is to drive the key rod 9 to rotate to transmit torque, and the other function is to tightly abut against the needle disc 10, so that the key needle 11 on the needle disc 10 tightly abuts against the code pushing block 3, the code pushing block 3 and the locking block 6 are positioned at unlocking positions, and the trend of relative movement of the lock core 5 and the lock shell 1 is ensured.

In the embodiment, the spoon handle 12 is fixedly connected with the spoon rod 9 through a bayonet lock; the spoon handle 12 is contacted with the dial 10 and relatively rotates, and the contact surface is provided with structures such as balls and/or rollers, etc., so that the friction force between the spoon handle 12 and the dial 10 is reduced, and the relative movement is easier.

Optimize above-mentioned technical scheme, the change of the relative rotation realization key needle 11 overall arrangement of adjacent dial 10, the password of changing a set of unblanking in other words sets up the specific position of a certain amount as the unblock and treats selecting the password position in the rotation in-process of dial 10, promptly dial 10 is equipped with spring groove 13 or spring hole, sets up bullet card spring 14 and chucking marble 15 in spring groove 13 or the spring hole, is provided with the annular groove on the adjacent dial 10, and the annular groove communicates with spring groove 13 or spring hole, and the interval is provided with sunken position in the annular groove, and bullet card spring 14 supports chucking marble 15 in the annular groove, and chucking marble 15 slides in the annular groove, when chucking marble 15 slides and blocks into sunken position, adjacent dial 10 chucking each other.

In this embodiment, the number of the recessed positions is eight, and each time the clamping ball 15 is clamped into one recessed position, the outer dial 10 and the inner dial 10 are combined to form a group of key needles 11 for unlocking.

In this embodiment, the needle dial 10 is provided with a spring groove 13, and the contact surface of the adjacent needle dial 10 is also provided with a corresponding spring groove 13, which together form a passage for the spring to move in a stretching manner.

In this embodiment, the above technical solutions are optimized continuously, and while the number of the layout solutions of the key pins 11 is increased, in order to improve the certainty of identifying the unlocking solution by the user himself, the dial 10 and/or the lock case 1 are/is provided with a code mark, and different combinations of the code mark are used to determine whether the unlocking solution is correct, and to determine a specific lock body that can be unlocked correspondingly.

Example 9:

As shown in fig. 11, this embodiment discloses a changeable key structure, which is matched with the lock bodies in embodiments 1 to 3, and aims to realize unlocking by the combination and change of the key corresponding to the plug structure of the lock body. The key adopts a key needle 11 structure, and can be changed in various key structures through combination modes such as layout, length, activity change and the like of the key needle 11, and when the matching structure of the unlocking key and the lock body is unavailable, the unlocking can not be realized by directly adopting the key. When the lock is unlocked by using the key, an additional defense procedure appears, so that the safety problem of the lock is transferred from the storage of the key to the use of the key, and the safety level of the lock is improved. The key structure can perform structural locking hook conversion, so that a plurality of lock bodies can be unlocked by using one key. For example, the lock bodies are installed on a plurality of door leaves at home, and the difference is that the layout of the key needles 11 used in unlocking is different; under the condition, the utility model discloses a key can change different key needle 11 layout structures, opens corresponding door leaf respectively, and is very convenient.

The embodiment adopts a technical scheme different from that of embodiment 8, and the specific difference is that:

In this embodiment, the above technical solution is optimized, and in order to increase the layout scheme of the key needle 11 corresponding to the unlocking password, a confusing key needle 11 may be adopted, that is, the key needle 11 rotates relative to the dial 10, and the key needle 11 rotates and then is perpendicular to the dial 10 or attached to the dial 10. In the partial unlocking scheme, only partial key needles 11 may be used, and the unused key needles 11 are rotated and attached to the dial 10.

Meanwhile, in order to facilitate the rotation of the key needle 11 and avoid the occurrence of interference, in the embodiment, the key needles on different needle disks are arranged in a staggered manner. For example: when the spoon needles 11 are arranged circumferentially on the dial 10, the spoon needles 11 on different dials 10 are arranged in different radial directions. The arrangement makes the key needles on different needle plates staggered with each other, and when the key needle 11 on the inner layer rotates outwards, the key needles do not collide with the key needle on the outer layer, thus being more convenient and practical.

The structure and connection relationship of other parts in this embodiment are the same as those in embodiment 8, and are not described here again.

Example 10:

As shown in fig. 12, this embodiment discloses a changeable key structure, which is matched with the lock bodies in embodiments 1 to 3, and aims to realize unlocking by the combination and change of the key corresponding to the plug structure of the lock body. The key adopts a key needle 11 structure, and can be changed in various key structures through combination modes such as layout, length, activity change and the like of the key needle 11, and when the matching structure of the unlocking key and the lock body is unavailable, the unlocking can not be realized by directly adopting the key. When the lock is unlocked by using the key, an additional defense procedure appears, so that the safety problem of the lock is transferred from the storage of the key to the use of the key, and the safety level of the lock is improved. The key structure can perform structural locking hook conversion, so that a plurality of lock bodies can be unlocked by using one key. For example, the lock bodies are installed on a plurality of door leaves at home, and the difference is that the layout of the key needles 11 used in unlocking is different; under the condition, the utility model discloses a key can change different key needle 11 layout structures, opens corresponding door leaf respectively, and is very convenient.

As shown in fig. 12, in this embodiment, the dial 10 includes an inner dial and an outer dial, wherein the inner dial is in a boss shape, and the outer dial is sleeved on the inner dial and rotates relatively.

A dial cap 21 is further arranged above the outer-layer dial, the dial cap is sleeved on the inner-layer dial and covers the end face of the outer-layer dial, the dial cap and the inner-layer dial rotate coaxially, and the dial cap and the outer-layer dial rotate relatively. Specifically, after the dial cap is sleeved on the inner-layer dial, the tightness between the dial cap and the outer-layer dial can be kept to ensure relative rotation, and the dial cap and the inner-layer dial are fixed through a bolt, so that coaxial rotation of the dial cap and the inner-layer dial can be realized.

Therefore, the adjustment of the relative matching position of the outer dial and the inner dial can be realized by adjusting the dial cap and the outer dial under the structure, so that the matching of the key needle is changed, and different unlocking schemes are obtained.

In this embodiment, the coded marks of the key are arranged on the circumferential side surfaces of the dial cap and the outer dial, and different coded mark combinations correspond to different unlocking layouts.

as shown in figure 14, a spoon disk 24 is arranged between the spoon handle and the disk cap, and a rolling marble is arranged on the spoon disk and has the function of enabling the relative rotation between the spoon handle and the disk cap to be smoother.

in this embodiment, a key sleeve 22 is provided for cooperating with the key, and the key cover is engaged with the dial. The key rod and the key needle of the key are covered by the key sleeve, so that the key sleeve is convenient to carry and safer to store.

In this embodiment, the inner dial and the outer dial are respectively provided with eight keys, and when adjusting, in view of eight variable factors of relative rotation of the inner dial and the outer dial, eight variable factors of matching of the dial cap and the lock body, eight variable factors of the key confusing needle on the inner dial, and eight variable factors of the key confusing needle on the outer dial, 8 can be obtained⁴each scheme can open a corresponding lock, so that the utilization value of the key can be greatly improved, the number of the keys is reduced, and resources are saved.

The above embodiments are preferred embodiments of the present invention, the lock body and key structure disclosed in the upper part of the lock body has good firmness and high reliability, and the difficulty of unlocking by technical cracking is very high; meanwhile, the key can provide various key needle layouts to be matched with different lock bodies to realize unlocking, a scheme that one key is used for multiple purposes is realized, multiple keys are integrated on one key, the link of distinguishing the keys is omitted, the utilization efficiency of the key is greatly improved, and the resource consumption is reduced.

The lock body and the key disclosed by the above have wide application range and can be used for door locks of houses, warehouses, boxes, cabinets, vehicles and the like.

The above embodiments are just examples of the present invention, but the present invention is not limited to the above alternative embodiments, and those skilled in the art can obtain other embodiments according to the above embodiments and arbitrary combinations of the above embodiments, and any other embodiments can be obtained according to the teaching of the present invention. The above detailed description should not be taken as limiting the scope of the invention, which is defined in the following claims, and which can be used to interpret the claims.

Claims

1. A pin hole type lock body structure comprises a lock shell (1) and a lock core (5) rotatably arranged in the lock shell (1); the method is characterized in that: a plurality of outer key holes (2) are formed in the area, which is not penetrated by the rotating axis of the lock core (5), of the lock shell (1), and a coding pushing block (3) is arranged in each outer key hole (2) in a sliding manner; the lock is characterized in that an inner key hole (7) corresponding to the outer key hole (2) is formed in the lock cylinder (5), a locking block (6) and an elastic piece (8) are arranged in the inner key hole (7), the inner key hole (7) is coaxially communicated with the outer key hole (2), the upper end of the locking block (6) penetrates through the communication position of the outer key hole (2) and the inner key hole (7) and is in contact with the code pushing block (3), and the elastic piece (8) enables the locking block (6) and the code pushing block (3) to be abutted tightly.

2. A pinhole type lock body structure according to claim 1, wherein: the outer key hole (2) is positioned on the lock shell (1) and is vertical to the lock plate surface of the rotating axis of the lock core (5), and the outer key hole (2) is arranged on the circumference of a concentric circle.

3. A pinhole type lock body structure according to claim 1, wherein: the lock shell (1) is provided with a circular outer key rod hole (4) in an area corresponding to the rotation axis of the lock core (5), an inner key rod hole (16) is formed in the rotation axis of the lock core (5), the area of the bottom of the inner key rod hole (16) is smaller than or equal to the area of the hole opening of the inner key rod hole (16), and the cross section of the bottom of the inner key rod hole (16) is in any shape except circular.

4. a pinhole type lock body structure according to claim 1, wherein: and a reset device is arranged between the lock core and the lock shell, and the reset device enables the lock core and the lock shell to rotate to an initial matching position after rotating relatively.

5. A pinhole type lock body structure according to claim 1, wherein: a limiting structure is arranged between the lock core and the lock shell, and the limiting structure enables the lock core and the lock shell to rotate relatively within a limited angle range.

6. a pin hole type lock body structure comprises a lock shell (1) and a lock core (5) rotatably arranged in the lock shell (1); the method is characterized in that: a plurality of outer key holes (2) are formed in the area, which is not penetrated by the rotating axis of the lock core (5), of the lock shell (1), and a coding pushing block (3) is arranged in each outer key hole (2) in a sliding manner; an inner key hole (7) corresponding to the outer key hole (2) is formed in the lock cylinder (5), a locking block (6), a top cylinder and an extension spring are arranged in the inner key hole (7), the upper end of the locking block is connected with the coding pushing block, the extension spring is sleeved outside the coding pushing block or the locking block, the lower end of the extension spring is fixedly connected with the coding pushing block or the locking block, the top cylinder is sleeved outside the extension spring, and the top end of the extension spring is connected with the top end of the top cylinder; the inner key hole (7) is coaxially communicated with the outer key hole (2), the lock shell and the lock cylinder are mutually nested, a lock shell sliding groove is formed in the lock shell, the lock cylinder is provided with a lock cylinder sliding groove correspondingly communicated with the lock shell sliding groove, and the lower end of the lock cylinder sliding groove is communicated with a lock cylinder ring groove; the locking block is provided with a radial convex block, the radial convex block penetrates through the lock shell sliding groove to enter the lock core sliding groove and limit the lock shell and the lock core to rotate relatively, and the coding pushing block pushes the locking block to move downwards to enable the radial convex block to slide into the lock core annular groove, so that the lock shell and the lock core can rotate relatively.

7. A convertible key structure, which is used in combination with the pinhole type lock body structure of any one of claims 1 to 6, wherein: the coded lock comprises a plurality of needle discs (10) which are coaxially arranged, wherein adjacent needle discs (10) relatively rotate, key needles (11) are arranged on the needle discs (10), the key needles (11) are in one-to-one correspondence with outer key holes (2), the key needles (11) are inserted into the outer key holes (2) and then push codes to push blocks (3), when the key needles (11) completely enter the outer key holes (2), the contact surfaces of the codes to push the blocks (3) and locking blocks (6) are superposed with the communication surfaces of the outer key holes (2) and inner key holes (7), and the lock cylinder (5) and the lock shell (1) can relatively rotate.

8. A convertible key structure as defined in claim 7, wherein: the key structure further comprises a key rod (9), the key rod (9) penetrates through the circle center of the needle dial (10) and rotates relative to the needle dial (10), the key rod (9) is matched with a pore channel formed by communicating the outer key rod hole (4) with the inner key rod hole (16), and the front end shape of the key rod (9) is correspondingly clamped with the bottom shape of the inner key rod hole (16).

9. A convertible key structure as defined in claim 7, wherein: needle dial (10) are equipped with spring groove (13) or spring hole, set up bullet card spring (14) and chucking marble (15) in spring groove (13) or the spring hole, be provided with the annular groove on adjacent needle dial (10), the annular groove communicates with spring groove (13) or spring hole, and the interval is provided with sunken position in the annular groove, bullet card spring (14) support chucking marble (15) in the annular groove, and chucking marble (15) slide in the annular groove, when chucking marble (15) slide and block the sunken position, adjacent needle dial (10) chucking each other.

10. A convertible key structure as defined in claim 7, wherein: the spoon needle (11) rotates relative to the dial (10), and the spoon needle (11) is perpendicular to the dial (10) or attached to the dial (10) after rotating.

11. A convertible key structure as defined in claim 7, wherein: the dial (10) and/or the lock shell (1) are/is provided with coding marks.