WO2020125687A1

WO2020125687A1 - Pinhole type lock body structure and transformable key structure

Info

Publication number: WO2020125687A1
Application number: PCT/CN2019/126369
Authority: WO
Inventors: 弋鹤鸣
Original assignee: 弋鹤鸣
Priority date: 2018-12-19
Filing date: 2019-12-18
Publication date: 2020-06-25
Also published as: CN209761036U

Abstract

The present invention relates to the technical field of safeguard devices. Disclosed are a pinhole type lock body structure and a transformable key structure. The lock body structure is unlocked using a pluggable structure by means of an outer keyhole and an inner keyhole; an unlocking key variable of the lock body is changed from an internal structure in a key hole into a key pin entry amount; only when a key pin pushes a code pushing block to move by a specific distance, can the contact surface of a locking block and the code pushing block coincide with the communication surface of the outer keyhole and the inner keyhole, thereby implementing unlocking. Therefore, the lock body structure has higher the safety and reliability. The key structure can provide multiple unlocking key pin layout solutions on one key structure by combining variable dial and key pin structures, and only a particular layout solution can unlock a corresponding door leaf. Therefore, the lock body cannot be directly unlocked when a user not being an owner holds the key. The key structure enhances the protection performance of a mechanical lock and enhances the reliability of the mechanical lock. Therefore, the present invention is suitable for popularization.

Description

Pinhole type lock body structure and convertible key structure

Technical field

The invention belongs to the technical field of security equipment, and particularly relates to a lock core and a key structure, in particular to a pinhole type lock body structure and a convertible key structure.

Background technique

As a safety appliance, locks have been widely used in daily life, industrial production, work and office, and other aspects of people's lives and work. Its role is to close or lock important items and areas, which can only be opened by specific personnel.

The existing locks mainly include electronic locks and mechanical locks. Among them, electronic locks use electric, magnetic and network technologies to control the lock tongue. In view of their inability to work in the event of power failure and the possibility of misoperation caused by magnetic interference, Therefore, there are unstable factors in the application of electronic locks, and its reliability is still criticized by many people. As a product of traditional technology, mechanical locks have been continuously improved in the updating of technology. The technology of mechanical locks has tended to be refined, and its reliability is much higher than that of electronic locks.

Almost all existing common mechanical locks need to be unlocked by a key, and the key and the lock core usually use a plug-in structure to achieve unlocking. Key unlocking is the only way to open a plug-in mechanical lock. The potential safety hazard is the security of the key. As long as you have the key, you can open the lock, and there is no more protection during the unlocking process, so the safety of traditional mechanical locks Mainly reflected in the storage of the key, the key must not be lost, and its structure cannot be leaked, so as to reduce the possibility of the mechanical lock being opened illegally.

The actual situation is that people often lose their keys inadvertently, making it impossible to open the lock. They can only unlock it by destroying the lock body or the door body. As a result, the lock can no longer be used and people have to replace the lock core; also In some cases, the lock body is provided with a keyhole, and the structure in the lock cylinder may leak through the keyhole; therefore, the criminals can understand the internal lock core by observing the keyhole, and can simulate the structure of the key, so that special tools can be used to The lock opens.

Therefore, the existing mechanical locks also have reliability problems, and people using mechanical locks cannot ensure safety. It is necessary to propose a more reasonable technical solution, improve the existing mechanical lock structure, and solve the technical problems in the existing technology.

Summary of the invention

The invention provides a pinhole type lock body structure, which aims to improve the structure of the lock body. The inside of the unlocking body cannot be observed through the keyhole, and the corresponding key cannot be copied; the structure adopted by the lock body is a multiple complex plug-in structure The combination of the keys increases the difficulty of unlocking by copying the key. At the same time, the plug structure of the lock body can maintain good mechanical properties after long-term use, ensuring smooth coordination and safety and reliability of the lock body.

In order to achieve the above effects, the technical solutions adopted by the present invention are:

A pinhole type lock body structure includes a lock shell and a lock core rotating inside the lock shell. The lock core is locked with the lock shell under normal conditions. The lock core cannot rotate, and the lock tongue cannot be driven to achieve unlocking; the correct key is used to contact the lock After the core and the lock shell are locked, the lock core can rotate relative to the lock shell, thereby driving the lock tongue to realize unlocking. Specifically, a plurality of outer keyholes are provided in the area of the lock shell that is not penetrated by the rotation axis of the lock core, and a code pushing block is slidably disposed in the outer keyhole; the lock core is provided with an outer key The inner keyhole corresponding to the position of the hole, the inner keyhole is provided with a locking block and an elastic piece, the inner keyhole is coaxially communicated with the outer keyhole, the upper end of the locking block passes through the communication point of the outer keyhole and the inner keyhole and is The coding pushing block contacts, and the elastic piece makes the locking block and the coding pushing block tight.

The lock body structure disclosed above replaces the keyhole on the traditional lock body by providing an outer keyhole and an inner keyhole, and sets a code push block and a lock block in the outer keyhole and the inner keyhole, respectively. The cooperation of the locking block realizes unlocking. Using the sliding distance of the push block in the outer keyhole as the key control variable for unlocking, this variable cannot be known by external observation, so the unlocking information has good privacy and high security.

The area where the outer keyhole and the inner keyhole can be set on the lock shell includes multiple outer surfaces of the lock shell. When the lock block enters the outer keyhole from the inner keyhole, the lock core and the lock shell can be locked. The relative rotation occurs.

Further, the above technical solution is optimized, and a preferred technical solution is proposed. The outer keyhole is located on the lock disc surface of the lock housing perpendicular to the rotation axis of the lock core, and the outer keyhole is provided along the circumference and outside The number of keyholes is several, and the outer keyholes are arranged according to multiple layers of concentric circles. In this solution, the code pushing block and the locking block are both arranged according to the direction in which the rotation axis of the lock core extends, and slide in the direction of the axis to achieve unlocking and locking.

Further further, the above technical solution is optimized, and another preferred technical solution is proposed. The outer keyhole is located on the side surface perpendicular to the lock disc, and the outer keyhole is perpendicular to the rotation axis of the lock core, and extends along It is set in the direction of the radius of the circle with this axis as the center of the circle, and the inner keyhole on the lock core corresponds to the outer keyhole. When the locking block extends from the inner keyhole into the outer keyhole, the lock core and the lock shell are locked; the code pusher block is moved toward the axis, and the contact surface of the code pusher block and the lock block is in contact with the inner keyhole and the outer keyhole. When the communication surfaces coincide, the lock core and the lock housing can rotate relatively.

Further, to optimize the above technical solution, the coding pushing block provided in the outer keyhole includes a cylindrical linear pushing block and/or a spherical convex pushing block. When the coding push blocks of different shapes slide in the outer keyhole, the smoothness and stability of the slide are different.

Preferably, when the coding pushing block adopts a cylindrical linear pushing block, the coding pushing block includes two sections of cylinders with different diameters. In cooperation with this, the outer keyhole includes two sections of circular holes with different diameters. The thinner section of the code pushing block is located in a round hole of the outer keyhole close to the outer surface of the lock shell, and the thicker section of the code pushing block is located in a section of the outer keyhole close to the inner surface of the lock shell. The advantage of this setting is that the coding push block will not fall out of the outer keyhole.

Further, the relative engagement and locking of the lock core and the lock housing depends on the locking effect of the locking block at the connection between the two. This structure is relatively single, and the above technical solution is optimized to increase the locking position and the number of locks. The lock shell and the lock core are nested with each other, the lock shell is provided with a lock shell slide groove, the lock core is provided with a lock core slide groove corresponding to the lock shell slide groove, the lower end of the lock core slide groove communicates with the lock core ring groove; The locking block is provided with a radial projection, the radial projection passes through the lock housing slide groove and enters the lock core slide groove and restricts the relative rotation of the lock shell and the lock core, and the coding push block pushes the lock block downward to make the radial protrusion slide After entering the lock cylinder ring groove, the lock shell and the lock cylinder can rotate relatively.

Further, when the lock core is placed inside the lock housing, when the coding push block and the lock block reach the unlocking position, the lock core and the lock housing have a relative rotation movement trend, so as long as the lock core is given a certain torque, the lock core can be opposite The lock housing rotates. To achieve this operation, the transmission of torque is generally achieved through the transmission rod. Therefore, the above technical solution is optimized. The area on the lock shell corresponding to the rotation axis of the lock core is provided with a circular outer key rod hole. An inner key rod hole is provided at the rotation axis of the lock cylinder, the hole bottom area of the inner key rod hole is less than or equal to the area at the opening of the inner key rod hole, and the cross section of the hole bottom of the inner key rod hole is circular Any shape other than The significance of this arrangement is that a key lever for torque transmission is inserted through the outer key lever, and the key lever enters the inner key lever hole and engages with the bottom of the inner key lever hole. At this time, the lock core will rotate with the key lever And the rotation realizes the transmission of torque; at the same time, the part corresponding to the key rod hole and the outer key rod hole is the original shape, so the lock shell remains stationary, and the key rod and the lock shell rotate relatively.

Preferably, the cross-section of the bottom of the inner keyhole may adopt a shape such as a polygon or an ellipse, which is convenient for locking and locking.

Further, the lock cylinder and the lock casing rotate relative to unlock, and the lock cylinder and the lock casing need to be reset after the end of one unlocking to achieve re-locking, and the relative rotation angle of the lock cylinder and the lock casing is manually set, and does not To facilitate accurate control, the above technical solution is optimized. A reset device is provided between the lock core and the lock housing. The reset device rotates the lock core and the lock housing to the initial mating position after relative rotation. Using a reset device to achieve reset is simpler and faster, and eliminates the tedious manual reset.

Preferably, a groove can be provided on the relative rotation surface of the lock core and the lock housing, and a reset elastic member such as a torsion spring can be provided in the groove. When the lock core and the lock housing rotate relatively, the reset elastic member generates a restoring force. After the unlocking is completed, the lock core can be rotated to the initial position under the action of the restoring force of the reset elastic member.

Further, the lock core and the lock housing can be relatively rotated to a certain angle to achieve unlocking, and a large rotation angle is not beneficial. Therefore, the above technical solutions are optimized to limit the rotation angle of the lock core and the lock shell to a reasonable range, and a limit structure is provided between the lock core and the lock shell. The limit structure limits the lock core and the lock shell. Relative rotation within a range of angles.

Preferably, a limit groove and a limit block may be provided on the relative rotation surface of the lock core and the lock housing. In the closed state, the limit block is located at one end of the limit groove, when the lock core and the lock housing rotate relatively The limit block slides along the limit slot. When the lock core rotates to the unlocking angle, the limit block just reaches the other end of the limit slot and bears tightly.

The invention also provides another lock body structure, and the specific technical solution adopted is:

A pinhole-type lock body structure includes a lock shell and a lock core that is rotatably provided in the lock shell; specifically: a plurality of external keyholes are provided in the area of the lock shell that is not penetrated by the rotation axis of the lock core, There is a coding push block sliding inside the outer keyhole; an inner keyhole corresponding to the position of the outer keyhole is arranged on the lock core; a locking block, a top cylinder and a tension spring are arranged inside the inner keyhole, and the upper end of the locking block is coded The push block is connected, and the tension spring is sleeved outside the code push block or the lock block, and the lower end of the tension spring is fixedly connected with the code push block or the lock block, and the top cylinder is sleeved outside the tension spring, the tension spring The top of the cylinder is connected to the top of the top cylinder; the inner keyhole is coaxially connected with the outer keyhole, the lock shell and the lock core are nested with each other, the lock shell is provided with a lock shell chute, and the lock core is provided with a lock shell The chute corresponds to the connected lock core chute, the lower end of the lock core chute communicates with the lock core ring groove; the lock block is provided with a radial protrusion, the radial protrusion passes through the lock housing slide and enters the lock core slide And restrict the relative rotation of the lock shell and the lock core. After the coding push block pushes the lock block downward to slide the radial protrusion into the lock core ring groove, the lock shell and the lock core can rotate relatively.

This technical solution can be used alone or in combination with the first technical solution, which can achieve more matching solutions and improve the safety and reliability of the lock body.

The above describes the lock body structure in terms of composition structure and connection relationship. The key structure used in conjunction with this lock body structure will be described and described in detail below.

The invention also provides a switchable key structure, which is matched with the lock body in the above, and aims to achieve the unlocking by corresponding combination of the key and the plug structure of the lock body. The key adopts a key needle structure. Through the combination of the layout, length and activity of the key needle, a variety of key structure changes can occur. When the matching structure of the unlock key and the lock body is not available, the key cannot be directly used to unlock. When using the key to open the lock, an additional precautionary procedure appears. Therefore, the security problem of the lock is transferred from the storage of the key to the use of the key, which improves the security level of the lock. This kind of key structure can change the structure of the hook, so you can use a key to open multiple locks. For example, many door leaves in the home are equipped with the above-mentioned lock body, the difference is that the key pin layout used when unlocking is different; in this case, the disclosed key can change different key pin layout structures to open the corresponding door leaf respectively , Very convenient.

A changeable key structure, which can be unlocked after being inserted into the lock body structure. Specifically, it includes several dials arranged coaxially, and adjacent dials rotate relative to each other. The dials are provided with key needles. The key needles correspond to the outer keyholes one by one. After the key needle fully enters the outer key hole, the contact surface of the code pushing block and the locking block coincides with the connecting surface of the outer key hole and the inner key hole, and the lock core and the lock shell can realize relative rotation.

The key structure disclosed above uses the key needle to push the code pushing block and the locking block to move a specific distance and move it to a position that allows the lock core to rotate, thereby achieving unlocking. After several dials rotate relative to each other, the layout of the key needle changes, and only a specific layout can unlock the corresponding lock body. Therefore, the structure of the key has the safety performance of preventing loss.

Further, the above technical solution is optimized, corresponding to the lock shell structure, the key structure also includes a key lever, the key lever passes through the center of the dial and rotates relative to the dial, the key lever and the outer key lever hole and the inner The key shaft hole communicates with the hole channel formed, and the shape of the front end of the key shaft is correspondingly engaged with the shape of the hole bottom of the inner key shaft hole. After the key is inserted into the lock housing, the key needle realizes the unlocking code pushing block and the locking block, and the key lever cooperates with the inner key hole to drive the lock core to rotate to realize the final unlock.

Further, during the unlocking process, the key lever needs to be rotated to transmit torque from the key lever to the lock cylinder, and the end of the key lever is cylindrical, which is not easy to handle and rotate; therefore, the above technical solution is optimized, the key lever The end of the key is also provided with a key handle, which contacts the dial and rotates relatively. One of the functions of the key handle is to drive the key rod to rotate and transmit torque. The second function is to resist the dial, make the key needle on the dial against the coding push block, and position the coding push block and the locking block in the unlocked position to ensure The trend of the relative movement of the lock cylinder and lock shell.

Preferably, the key handle is in contact with the dial and rotates relatively, and the contact surface is provided with a ball and/or roller structure, so that the friction between the key handle and the dial is reduced, and the relative movement is easier.

Further, the above technical solutions are optimized. The relative rotation of the adjacent dials changes the layout of the key needles, which is equivalent to changing a set of unlocking codes. During the rotation of the dials, a certain number of specific positions are set as unlocking candidates. Code position, that is, the needle disk is provided with a spring groove or a spring hole, and an elastic spring and a clamping spring ball are arranged in the spring groove or the spring hole, a circular groove is provided on the adjacent needle disk, the annular groove and the spring groove or spring The holes are connected, and the annular grooves are provided with recessed spaces at intervals, the elastic springs push the clamping spring balls into the annular grooves, and the clamping spring balls slide in the annular grooves, when the clamping spring balls slide into the recessed positions , Adjacent dials are clamped to each other.

Preferably, when spring grooves are provided on the dials, corresponding spring grooves are also provided on the adjacent surfaces of the dials, together forming a channel for the telescopic movement of the springs.

Further, to optimize the above technical solution, in order to increase the key needle layout solution corresponding to the unlock code, a deceptive key needle can be used, that is, the key needle rotates relative to the dial, and the key needle rotates perpendicular to the dial or with The dial is fitted. In some unlocking schemes, it may only be necessary to use a part of the key needle, then rotate the unused key needle and fit it to the dial.

Still further, the above technical solutions continue to be optimized. While increasing the number of key needle layout solutions, in order to improve the certainty of the user's own identification of the unlocking program, the dial and/or the lock housing are provided with coding marks, using The different cooperation of the coding marks determines whether it is the correct unlocking scheme, and determines the specific lock body that can be unlocked.

Compared with the prior art, the beneficial effects of the present invention are:

1. The lock body structure disclosed in the present invention is provided with an outer keyhole and an inner keyhole, and the plug-in structure is used for unlocking, and the key variable of the lock body unlocking is changed from the internal structure of the keyhole to the amount of key needle entry, only When the key pin pushes the code push block to move by this specific distance, the contact surface of the lock block and the code push block can coincide with the connecting surface of the outer key hole and the inner key hole, thereby realizing unlocking, the safety and reliability of the lock body structure higher.

2. The key structure disclosed in the present invention can provide a variety of unlocked key needle layout solutions on a key structure by combining a variable dial and key needle structure. Only a specific layout scheme can unlock the corresponding door leaf. Therefore, when the non-user himself holds the key, it is difficult to directly unlock the lock body. The key structure changes the reliability of the mechanical lock from the storage of the key to the use of the key, increases the protection performance of the mechanical lock, improves the difficulty of opening the mechanical lock, and increases the reliability of the mechanical lock.

BRIEF DESCRIPTION

In order to more clearly explain the technical solutions of the embodiments of the present invention, the drawings required in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be Seen as a limitation on the scope, for those of ordinary skill in the art, without paying any creative labor, other related drawings can also be obtained based on these drawings.

1 is a schematic cross-sectional structural view of the lock body structure in Embodiment 1;

2 is a schematic view of the outer keyhole layout of the lock body structure in Embodiment 1;

3 is a schematic cross-sectional structural view of the lock body structure in Example 2;

4 is a schematic cross-sectional structural view of the lock body structure in Example 5;

5 is a schematic diagram of the lock core slide groove and the lock core ring groove in Example 4;

6 is a schematic cross-sectional structural view of the lock body structure in Embodiment 6;

7 is a schematic cross-sectional view of the A-A section reset device;

8 is a schematic cross-sectional structural view of the lock body structure in Example 7;

9 is a schematic cross-sectional view of a B-B cross-section limiting groove;

10 is a schematic cross-sectional structural view of the key structure in Example 8;

11 is a schematic cross-sectional structural view of the key structure in Example 9;

12 is a schematic cross-sectional structural view of the key structure in Example 10;

13 is a schematic cross-sectional structural view of the lock body in Example 4;

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

In the above picture, the meanings of the labels are: 1- lock shell; 2- outer keyhole; 3-code push block; 4-outer key rod hole; 401- keyhole chute; 402-keyhole ring groove; 5- Lock cylinder; 501-lock cylinder chute; 502-lock cylinder ring groove; 6-lock block; 7-inner keyhole; 8-elastic member; 9-key rod; 901-key rod slider; 10- dial 11-spoon needle; 12-spoke handle; 13-spring groove; 14-elastic snap spring; 15-clamping spring ball; 16-inner key rod hole; 17-groove; 18-reset elastic piece; 19-limit position Groove; 20-limit block; 21-panel cap; 22-key sleeve; 23-top cylinder; 24-keypan; 25-sliding member; 26-calibration structure.

detailed description

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

Example 1

As shown in FIGS. 1 and 2, this embodiment discloses a pinhole-type lock body structure, which includes a lock housing 1 and a lock core 5 that is rotationally disposed in the lock housing 1. The lock core 5 is locked with the lock housing 1 under normal conditions. The lock core 5 cannot be rotated, and the lock tongue cannot be driven to unlock; after using the correct key to contact the lock core 5 and the lock housing 1 to lock, the lock core 5 can rotate relative to the lock housing 1, thereby driving the lock tongue to unlock. Specifically, a plurality of outer keyholes 2 are provided in the area of the lock shell 1 that is not penetrated by the rotation axis of the lock core 5, and a code pushing block 3 is slidably disposed in the outer keyhole 2; the lock core 5 An inner keyhole 7 corresponding to the position of the outer keyhole 2 is provided on the inner keyhole 7 with a locking block 6 and an elastic member 8, the inner keyhole 7 is coaxially communicated with the outer keyhole 2, the upper end of the locking block 6 Through the connection between the outer keyhole 2 and the inner keyhole 7 and in contact with the coding pushing block 3, the elastic member 8 makes the locking block 6 and the coding pushing block 3 tightly, specifically, the lower end of the locking block 6 is against the elastic member 8 tight. Specifically, the elastic member 8 is a spring.

The lock body structure disclosed above replaces the keyhole on the traditional lock body by providing the outer keyhole 2 and the inner keyhole 7, and the coding push block 3 and the lock block 6 are respectively provided in the outer keyhole 2 and the inner keyhole 7 , The use of coding push block 3 and locking block 6 to achieve unlocking. The sliding distance of the push block 3 in the outer keyhole 2 is used as a key control variable for unlocking. This variable cannot be known from external observation. Therefore, the unlocking information has good privacy and high security.

The area where the outer keyhole 2 and the inner keyhole 7 can be provided on the lock shell 1 includes multiple outer surfaces of the lock shell 1. When the lock block 6 enters the outer keyhole from the inner keyhole 7, the lock core 5 and The lock shell 1 is stuck, restricting the relative rotation of the two.

This embodiment adopts a preferred technical solution. The outer keyhole 2 is located on the lock disc surface of the lock housing 1 perpendicular to the rotation axis of the lock core 5, and the outer keyhole 2 is arranged in a circle and the number of outer keyholes Several, the outer keyholes are arranged in multiple layers of concentric circles. In this solution, the code pushing block 3 and the locking block 6 are both arranged according to the direction in which the rotation axis of the lock cylinder 5 extends, and slide in the direction of the axis to achieve unlocking and locking.

When the lock cylinder 5 is placed inside the lock housing 1, when the code pushing block and the lock block 6 reach the unlocking position, the lock cylinder 5 and the lock housing 1 have a relative rotation movement trend, so as long as the lock cylinder 5 is given a certain torque, the lock cylinder 5 can rotate relative to the lock housing 1. To achieve this operation, the transmission of torque is generally achieved through the transmission rod, so the above technical solution is optimized. The area on the lock shell 1 corresponding to the rotation axis of the lock core 5 is provided with a circular outer key rod hole 4. An inner key rod hole 16 is provided at the rotation axis of the lock cylinder 5, the area of the bottom of the inner key rod hole 16 is less than or equal to the area at the opening of the inner key rod hole 16, and the inner key rod hole 16 The cross section of the bottom of the hole is any shape other than round. The significance of this arrangement is that a key lever 9 for torque transmission is inserted through the outer key lever 9, the key lever 9 enters the inner key lever hole 16 and engages with the bottom of the inner key lever hole 16, and the lock core 5 will With the rotation of the key lever 9, the torque is transmitted; at the same time, the portion corresponding to the key lever 9 and the outer key lever hole 4 is the original shape, so the lock housing 1 remains stationary, the key lever 9 and the lock housing 1 Relative rotation.

The cross-section of the bottom of the inner keyhole 7 may be polygonal, oval, or other shapes that are convenient for locking and locking.

In this embodiment, the lock core and the lock housing rotate relatively, and a spring ball can be provided between the lock core and the lock housing to realize a smooth rotation. As shown in FIG. 1, a sliding member 25 is provided between the lock core and the lock housing. The sliding member 25 can adopt various structural members, and specifically, a planar thrust bearing can be used.

In this embodiment, the sum of the lengths of each group of the code pushing block 3 and the locking block 6 is equal, but the moving distance of each group of the code pushing block 3 pushing the locking block 6 to achieve unlocking is not equal. The significance of this setting is: It can increase the difficulty of trying to unlock, avoid others from trying out the moving distance of unlocking, thereby improving the safety and reliability of the entire lock body structure.

Example 2

As shown in FIG. 3, this embodiment discloses a pinhole-type lock body structure, which adopts a different technical solution from that in Embodiment 1. The specific differences are as follows:

In this embodiment, the above technical solution is optimized, and another preferred technical solution is proposed. The outer keyhole 2 is located on the side surface perpendicular to the lock disc, and the outer keyhole 2 is perpendicular to the rotation of the lock core 5 The shaft center is set along the direction of the radius of the circle centered on the shaft center. The inner keyhole 7 on the lock core 5 corresponds to the outer keyhole 2. When the locking block 6 extends from the inner keyhole 7 into the outer keyhole 2, the lock core 5 and the lock housing 1 are locked; the code pushing block 3 is pushed toward the axis, and the contact surface of the code pushing block 3 and the locking block 6 is When the communication surfaces of the inner keyhole 7 and the outer keyhole 2 coincide, 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 will not be repeated here.

Example 3

This embodiment discloses a pinhole-type lock body structure, which adopts a different technical solution from that in Embodiment 1. The specific differences are as follows:

In this embodiment, the above technical solution is optimized. The coding pushing block 3 provided in the outer keyhole 2 includes a cylindrical linear pushing block and/or a spherical convex pushing block. When the coding pushing block 3 of different shapes slides in the outer keyhole 2, the smoothness of sliding and the degree of stability retention are different.

When the coding pushing block 3 adopts a cylindrical linear pushing block, the coding pushing block 3 includes two sections of cylinders with different diameters. In conjunction with this, the outer keyhole 2 includes two sections of circular holes with different diameters. The thinner section of the code pushing block is located in a round hole of the outer keyhole 2 close to the outer surface of the lock shell 1, and the thicker section of the code pushing block is located in a section of the outer keyhole 2 close to the inner surface of the lock shell 1. The advantage of this setting is that the coding push block 3 will not fall out of the outer keyhole 2.

Example 4

As shown in FIG. 13, this embodiment discloses a pinhole type lock body structure, which includes a lock housing 1 and a lock core 5 which is rotatably provided in the lock housing 1. The lock core 5 is locked with the lock housing 1 under normal conditions, and the lock core 5 It cannot turn and cannot drive the lock tongue to unlock; after using the correct key to lock the lock core 5 and the lock housing 1, the lock core 5 can rotate relative to the lock housing 1 to drive the lock tongue to unlock. Specifically: a pinhole-type lock body structure, including a lock shell and a lock cylinder rotating inside the lock shell; specifically: a plurality of areas on the lock shell that are not penetrated by the rotation axis of the lock core The outer keyhole has a coding push block sliding inside the outer keyhole; the inner keyhole corresponding to the position of the outer keyhole is provided on the lock core, and the inner keyhole is provided with a locking block, a jack cylinder and a tension spring to lock The upper end of the block is connected with the coding push block, the tension spring is sleeved outside the coding push block or the locking block, and the lower end of the tension spring is fixedly connected with the coding push block or the locking block, and the top cylinder is sleeved outside the tension spring , The top end of the tension spring is connected to the top end of the top cylinder; the inner keyhole and the outer keyhole are coaxially connected, the lock shell and the lock core are nested with each other, the lock shell is provided with a lock shell slide groove, and the lock core is provided with There is a lock core chute corresponding to the lock housing chute, the lower end of the lock core chute is connected to the lock core ring groove; the lock block is provided with a radial protrusion, the radial protrusion enters through the lock shell chute The lock core slide groove restricts the relative rotation of the lock shell and the lock core. After the code push block pushes the lock block downward to slide the radial protrusion into the lock core ring groove, the lock shell and the lock core can rotate relatively.

In this embodiment, the locking block is an elastic piece. When the lowermost end of the locking block touches the bottom of the inner keyhole after the locking block is lowered, the radial protrusion on the locking block just reaches the lock ring groove, and the lock core It can rotate relative to the lock housing.

Example 5

As shown in FIG. 4, this embodiment discloses a pinhole-type lock body structure, which adopts a different technical solution from that in Embodiment 4. The specific differences are as follows:

As shown in FIG. 5, in this embodiment, the relative locking of the lock cylinder and the lock housing depends on the locking effect of the locking block at the connection between the two. This structure is relatively simple, and the above technical solution is optimized to increase the locking position. And the number of locks, the lock shell and the lock core are nested with each other, the lock shell is provided with a lock shell slide groove, the lock core is provided with a lock core slide groove 501 corresponding to the lock shell slide groove, the lock core slide groove The lower end communicates with the lock cylinder ring groove 502; the lock block is provided with a radial protrusion, the radial protrusion passes through the lock housing slide groove and enters the lock core slide groove and restricts the relative rotation of the lock shell and the lock core, and the coding push block pushes After the locking block moves down to slide the radial protrusion into the groove of the lock core ring, 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 will not be repeated here.

Example 6

As shown in FIG. 6, this embodiment discloses a pinhole-type lock body structure, which adopts a different technical solution from that in Embodiment 1, and the specific differences are as follows:

In this embodiment, the lock cylinder and the lock housing are relatively rotated to unlock, and the lock cylinder and the lock housing need to be reset after one unlocking is completed before re-locking can be achieved, and the relative rotation angle of the lock core and the lock housing is manually set. It is not convenient for precise control, so the above technical solution is optimized. A reset device is provided between the lock core and the lock housing. The reset device rotates the lock core and the lock housing to the initial mating position after relative rotation. Using a reset device to achieve reset is simpler and faster, and eliminates the tedious manual reset.

Specifically, as shown in FIG. 7, a groove 17 is provided on the relative rotation surface of the lock core and the lock housing, and the groove can be placed on the lock core or the lock housing; a reset elastic member 18 of a torsion spring type is provided in the groove, When the lock core and the lock housing rotate relative to each other, the reset elastic member generates a restoring force. After the unlocking is completed, the lock core can rotate to the initial position under the action of the restoring force of the reset elastic member.

Example 7

As shown in FIG. 8, a different technical solution from that in Embodiment 1 is adopted, and the specific differences are as follows:

In this embodiment, the lock core and the lock housing are relatively rotated to a certain angle to achieve unlocking, and if the rotation angle is too large, it is not beneficial. Therefore, the above technical solutions are optimized to limit the rotation angle of the lock core and the lock shell to a reasonable range, and a limit structure is provided between the lock core and the lock shell. The limit structure limits the lock core and the lock shell. Relative rotation within a range of angles.

Specifically, as shown in FIG. 9, a limit groove 19 and a limit block 20 may be provided on the relative rotation surface of the lock core and the lock housing. The limit groove may be provided on the lock core or the lock housing, and the limit block corresponds to Set on the lock shell or lock core; in the locked state, the limit block is located at one end of the limit groove, when the lock core and the lock shell rotate relative to each other, the limit block slides along the limit groove, when the lock core rotates to reach When unlocking the angle, the limit block just reaches the other end of the limit slot and bears tightly.

Example 8

The above embodiments 1 to 7 illustrate the lock body structure in terms of composition structure and connection relationship. The key structure used in conjunction with this lock body structure will be described in detail below.

As shown in FIG. 10, this embodiment discloses a switchable key structure. The key structure cooperates with the lock body in Embodiments 1 to 3, and is intended to be transformed by the combination of the key to correspond to the plug structure of the lock body. To achieve unlocking. The key adopts the structure of the key needle 11, and through the combination of the layout, length and activity of the key needle 11, a variety of key structure changes can occur. When the matching structure of the unlock key and the lock body cannot be achieved, the key cannot be directly implemented unlock. When using the key to open the lock, an additional precautionary procedure appears. Therefore, the security problem of the lock is transferred from the storage of the key to the use of the key, which improves the security level of the lock. This kind of key structure can change the structure of the hook, so you can use a key to open multiple locks. For example, many doors in the home are equipped with the above-mentioned lock body, the difference is that the layout of the key needle 11 used for unlocking is different; in this case, the present invention discloses that the key can change the layout structure of the key needle 11 and open the corresponding The door leaf is very convenient.

The above-mentioned convertible key structure can be unlocked after being inserted into the lock body structure. Specifically, it includes a plurality of needle dials 10 arranged coaxially, and adjacent needle dials 10 rotate relative to each other. The needle dials 10 are provided with key needles 11. The key needles 11 correspond to the outer key holes 2 one by one, and the key needles 11 are inserted. After the outer keyhole 2 pushes the code pusher block 3, when the key pin 11 fully enters the outer keyhole 2, the contact surface of the code pusher block 3 and the locking block 6 coincides with the connecting surface of the outer keyhole 2 and the inner keyhole 7, the lock The core 5 and the lock housing 1 can realize relative rotation.

The key structure disclosed in this embodiment uses the key needle 11 to push the code pushing block 3 and the locking block 6 to move a specific distance, and move it to a position that allows the lock core 5 to rotate, thereby achieving unlocking. After several dials 10 rotate relatively, the layout of the key needle 11 changes, and only a specific layout can unlock the corresponding one of the lock bodies. Therefore, the structure of the key has a safety performance against loss. For specific description, the number of layers of the outer keyhole 2 in this embodiment is two, namely the outer layer hole and the inner layer hole, and the number of holes in each layer is four; the corresponding number of the dial 10 is two, respectively, the outer layer Dial and inner dial; the key pin 11 on the outer dial corresponds to the outer hole, and the key pin 11 on the inner dial corresponds to the inner hole.

In this embodiment, the above technical solution is optimized, corresponding to the structure of the lock housing 1, the key structure further includes a key lever 9, the key lever 9 passes through the center of the dial 10 and rotates relative to the dial 10, the key lever 9 cooperates with a hole formed by the communication between the outer key rod hole 4 and the inner key rod hole 16, and the shape of the front end of the key rod 9 is correspondingly engaged with the shape of the hole bottom of the inner key rod hole 16. After the key is inserted into the lock housing 1, the key needle 11 realizes the unlocking code pushing block 3 and the locking block 6, the key lever 9 cooperates with the inner key hole 7 to drive the lock core 5 to rotate, and finally unlocks.

During the unlocking process, it is necessary to rotate the key lever 9 to transmit torque from the key lever 9 to the lock cylinder 5, and the end of the key lever 9 is cylindrical, which is not easy to handle and rotate; therefore, the above technical solution is optimized, the key The end of the rod 9 is also provided with a key handle 12, which is in contact with the dial 10 and rotates relatively. One of the functions of the key handle 12 is to drive the key lever 9 to transmit torque, and the second function is to press against the dial 10, so that the key needle 11 on the dial 10 presses against the code pushing block 3, and the code pushing block 3 and lock The position of the block 6 is in the unlocked position, which ensures the relative movement trend of the lock cylinder 5 and the lock shell 1.

In this embodiment, the key handle 12 is connected and fixed to the key rod 9 by a bayonet; the key handle 12 contacts the dial 10 and rotates relatively, and the contact surface is provided with a ball and/or roller structure, so that the key handle 12 and the dial 10 The frictional force is reduced and relative movement is easier.

To optimize the above technical solution, the relative rotation of the adjacent dial 10 to change the layout of the key needle 11 is equivalent to replacing a set of unlocked passwords. During the rotation of the dial 10, a certain number of specific positions are set to be unlocked. Code position, that is, the dial 10 is provided with a spring groove 13 or a spring hole, and a spring 14 and a clamping ball 15 are provided in the spring groove 13 or the spring hole, and a circular groove, a ring shape is provided on the adjacent dial 10 The groove communicates with the spring groove 13 or the spring hole, and the annular groove is provided with a recessed space at an interval, and the elastic spring 14 pushes the clamping elastic ball 15 into the annular groove, and the clamping elastic ball 15 slides in the annular groove when the card When the tightening ball 15 slides and snaps into the recessed position, the adjacent dials 10 clamp each other.

In this embodiment, the number of the recessed positions is eight. When the clamping pin 15 snaps into a recessed position, the outer needle dial and the inner needle dial combine to form a set of unlocked key needles 11 layout.

In this embodiment, a spring groove 13 is provided on the dial 10, and a corresponding spring groove 13 is also provided on the bonding surface of the adjacent dial 10, together forming a channel for the telescopic movement of the spring.

In this embodiment, the above technical solution continues to be optimized. While increasing the number of layouts of the key needle 11, in order to improve the certainty of the user's own identification of the unlocking solution, the dial 10 and/or the lock housing 1 are provided There is a coded mark, use different cooperation of the coded mark to judge whether it is the correct unlocking scheme, and determine the specific lock body that can be unlocked.

Example 9

As shown in FIG. 11, this embodiment discloses a switchable key structure, which adopts a technical solution different from that of Embodiment 8. The specific differences are as follows:

In this embodiment, the above technical solution is optimized. In order to increase the layout of the key needle 11 corresponding to the unlock code, a deceptive key needle 11 may be used, that is, the key needle 11 rotates relative to the dial 10, and the key needle 11 rotates. The rear is perpendicular to the dial 10 or fits with the dial 10. In the partial unlocking scheme, only a part of the key needle 11 may be used, and then the unused key needle 11 is rotated and attached to the dial 10.

At the same time, in order to facilitate the rotation of the key needle 11 and avoid collision, in this embodiment, the key needles on different dials are arranged in a misaligned 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. In this way, the key needles on different dials are misaligned with each other. When the key needle 11 on the inner layer rotates outward, it does not interfere with the key needle on the outer layer, which is more convenient and practical.

The structure and connection relationship of other parts in this embodiment are the same as those in Embodiment 8, and will not be repeated here.

Example 10

As shown in FIG. 12, this embodiment discloses a convertible key structure, which adopts a technical solution different from that of Embodiment 8. The specific differences are as follows:

As shown in FIG. 12, in this embodiment, the dial 10 includes an inner layer dial and an outer layer dial, wherein the inner layer dial is boss-shaped, and the outer layer dial is sleeved on the inner layer dial and Relative rotation.

A disk cap 21 is also provided above the outer dial, which is sleeved on the inner dial and covers the end face of the outer dial, and the cap rotates coaxially with the inner dial , The disc cap rotates relative to the outer dial. Specifically, after the disk cap is sleeved on the inner dial, the tightness between the dial cap and the outer dial can be maintained to ensure relative rotation, and the dial cap can be fixed to the inner dial by a plug, that is, Realize the coaxial rotation of the disc cap and the inner dial.

Therefore, with this structure, the adjustment of the relative matching position of the outer layer dial and the inner layer dial can be achieved by adjusting the dial cap and the outer layer dial, thereby changing the key needle coordination and obtaining different unlocking schemes.

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

At the same time, as shown in FIG. 12, in this embodiment, a calibration structure 26 is provided on the outer dial and the dial cap, respectively, so as to quickly realize the resetting of the outer dial and the dial cap. Specifically, the calibration structure 26 may adopt a structure that is easy to identify, such as protrusions and grooves. When the outer dial is turned so that the calibration structure 26 of the outer dial and the cap is at a predetermined relative position, it means the outer dial And the inner dial is in the initial position.

As shown in FIG. 12 and FIG. 14, a key disc 24 is provided between the key handle and the cap, and a rolling marble is provided on the key disc. The function of the rolling marble is to make the key handle and the cap The relative rotation is smoother.

Specifically, the disc cap is provided with a pinball hole, the rolling pinball is provided in the pinball hole, and an elastic resisting member is also provided in the pinball hole, and the elastic resisting member pushes the rolling pinball toward the spoon 24 .

In this embodiment, there is a key sleeve 22 used in conjunction with the key, and the key cover is engaged with the dial. The key cover covers the key lever and key of the key, which is convenient to carry and safer to store.

In this embodiment, the inner dial and the outer dial are respectively provided with eight key needles. When adjusting, in view of the eight variable factors of the relative rotation of the inner and outer dials, the cap and the lock body cooperate Eight variable factors, eight variable factors for confusing key needles on the inner dial, eight variable factors for confusing key needles on the outer dial, 8 ⁴ = 4096 unlocking schemes, each of which is The corresponding lock can be opened. Therefore, the use of the key can greatly improve the use value of the key, reduce the number of keys, and save resources.

The above-mentioned embodiments are more preferred specific embodiments that can be adopted by the present invention. The lock body and key structure disclosed in the previous section have good firmness and high reliability, and it is extremely difficult to break the lock through technology. At the same time, the above key can Provide a variety of key pin layouts with different lock bodies to achieve unlocking, achieve a key multi-purpose solution, integrate multiple key keys into a key key, eliminating the need to distinguish the key link, greatly improving the efficiency of key use , While reducing resource consumption.

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

Example 11

This embodiment discloses a switchable key structure, which adopts a technical solution different from that of Embodiment 8.

Specifically, as shown in FIG. 2, in this embodiment, a key lever slider 901 is provided on the key lever 9; correspondingly, as shown in FIG. 13, a key hole slide 401 is provided on the outer key hole 4. The rod slider 901 and the keyhole slide groove 401 slidingly cooperate. When the key rod 4 extends into the outer keyhole, the key rod slider 901 slides along the keyhole slide groove 401; the bottom of the keyhole slide groove 401 is also provided with a keyhole ring Groove 402, the keyhole ring groove 402 is provided on the inner wall surface of the outer keyhole 4, when the key rod slider 901 slides to the keyhole ring groove 402, turn the key rod 9, the key rod slider 901 slides into the keyhole ring槽402.

The above are the several embodiments enumerated in the present invention, but the present invention is not limited to the above-mentioned optional embodiments. Those skilled in the art can obtain any of various other embodiments in any combination according to the above-mentioned methods. Various other forms of implementation can be derived below. The above specific embodiments should not be construed as limiting the scope of protection of the present invention. The scope of protection of the present invention should be as defined in the claims, and the description can be used to interpret the claims.

Claims

A pinhole type lock body structure includes a lock shell (1) and a lock core (5) rotatingly arranged in the lock shell (1); it is characterized in that the lock shell (1) is provided with a number of external keyholes ( 2), the inner keyhole (2) is slidingly provided with a coding pushing block (3); the lock core (5) is provided with an inner keyhole (7) corresponding to the position of the outer keyhole (2), the inner keyhole (7) A locking block (6) and an elastic member (8) are provided inside, the inner keyhole (7) is coaxially communicated with the outer keyhole (2), and the upper end of the locking block (6) passes through the outer keyhole (2) ) Communicates with the inner keyhole (7) and contacts the code pushing block (3), and the elastic member (8) makes the locking block (6) and the code pushing block (3) tight.
The pinhole type lock body structure according to claim 1, wherein the outer keyhole (2) is located on the surface of the lock disc perpendicular to the rotation axis of the lock core (5) on the lock shell (1), and the outer key The holes (2) are arranged along the circumference.
The pinhole lock body structure according to claim 1, characterized in that: the lock housing (1) is provided with a circular outer keyhole hole (4) in an area corresponding to the rotation axis of the lock core (5) , The inner key rod hole (16) is provided at the rotation axis of the lock core (5), and the bottom area of the inner key rod hole (16) is less than or equal to the area at the opening of the inner key rod hole (16) , And the bottom cross-section of the inner key shaft hole (16) is any shape other than circular.
The pinhole lock body structure according to claim 1, wherein a reset device is provided between the lock core and the lock housing, and the reset device rotates the lock core and the lock housing to the initial mating position after relatively rotating.
The pinhole lock body structure according to claim 1, wherein a limit structure is provided between the lock core and the lock housing, and the limit structure causes the lock core and the lock housing to rotate relatively within a limited angle range.
A pinhole type lock body structure includes a lock shell (1) and a lock core (5) rotatingly arranged in the lock shell (1); it is characterized in that the lock shell (1) is provided with a number of external keyholes ( 2), the inner keyhole (2) is slidingly provided with a coding pushing block (3); the lock core (5) is provided with an inner keyhole (7) corresponding to the position of the outer keyhole (2), the inner keyhole (7) There is a lock block (6), a top cylinder and a tension spring. The upper end of the lock block is connected to the code push block. The tension spring is sleeved outside the code push block or lock block, and the lower end of the tension spring is connected to the code The pushing block or the locking block is fixedly connected, the top cylinder is sleeved outside the extension spring, and the top end of the extension spring is connected to the top of the top cylinder; the inner keyhole (7) and the outer keyhole (2) are coaxially connected , The lock shell and the lock core are nested with each other, the lock shell is provided with a lock shell slide groove, the lock core is provided with a lock core slide groove corresponding to the lock shell slide groove, and the lower end of the lock core slide groove communicates with the lock core ring Slot; the lock block is provided with a radial projection, the radial projection passes through the lock housing slide into the lock core slide and restricts the relative rotation of the lock shell and the lock core, the coding push block pushes the lock block down to make the diameter After sliding into the ring groove of the lock core, the lock shell and the lock core can rotate relatively.
A changeable key structure, which cooperates with the pinhole lock body structure according to any one of claims 1 to 6, is characterized in that it includes a plurality of coaxially arranged dials (10), and adjacent dials (10) rotate relatively , The needle dial (10) is provided with a key needle (11), the key needle (11) corresponds to the outer key hole (2) one by one, and the key needle (11) is inserted into the outer key hole (2) to push the coding push block (3) After the key needle (11) has completely entered the outer keyhole (2), the contact surfaces of the code pushing block (3) and the locking block (6) are in contact with the outer keyhole (2) and the inner keyhole (7) The communication surfaces coincide, and the lock core (5) and the lock shell (1) can realize relative rotation.
The switchable key structure according to claim 7, wherein the key structure further comprises a key lever (9), the key lever (9) passes through the center of the dial (10) and is opposite to the dial (10) Turn, the key rod (9) cooperates with the hole formed by the communication between the outer key rod hole (4) and the inner key rod hole (16), and the shape of the front end of the key rod (9) corresponds to the shape of the bottom of the inner key rod hole (16) Snap.
The switchable key structure according to claim 7, characterized in that: the dial (10) is provided with a spring groove (13) or a spring hole, and a spring spring (14) is provided in the spring groove (13) or the spring hole And the clamping elastic ball (15), the adjacent dial (10) is provided with a circular groove, the circular groove communicates with the spring groove (13) or the spring hole, and the annular groove is provided with a recessed space at the interval, and the elastic spring ( 14) Push the clamping spring ball (15) into the annular groove, and the clamping spring ball (15) slides in the annular groove. When the clamping spring ball (15) slides and snaps into the concave position, the adjacent needles The discs (10) are locked to each other.
The switchable key structure according to claim 7, wherein the key needle (11) rotates relative to the dial (10), and the key needle (11) rotates perpendicular to the dial (10) or to the needle The plate (10) fits.
The switchable key structure according to claim 7, characterized in that: the dial (10) and/or the lock housing (1) are provided with coding marks.