A coded lock cylinder and lock, coding device, key and lock system

Abstract

The present application relates to the technical field of lock, especially to a lock cylinder with code setting device, a lock, a code setting device, a key and a lock system. The lock cylinder comprises a lock shell, a lock cylinder and a code setting device. The lock shell is provided with a first installation cavity, a second installation cavity communicated with the first installation cavity and a second key slot. The lock cylinder is rotatably arranged in the first installation cavity, and the front end of the lock cylinder is provided with a key slot extending along the rear end to form a first key slot. The code setting device comprises a clutch, a code setting member and a driving member. The clutch is movably arranged in the clutch installation slot of the second installation cavity of the lock shell, and is provided with a code setting member installation slot. The code setting member is movably arranged in the code setting member installation slot, and the code setting member and the driving member are respectively provided with a first code setting tooth slot and a second code setting tooth slot matched with each other. The code setting device realizes the replacement of the opening and closing lock keys. The whole process does not need to disassemble the lock and the lock cylinder, and does not need to use special tools, so the operation is simple and fast.

Description

Technical Field

[0001] This invention relates to the field of lock technology, and in particular to a coded lock cylinder and its lock, coded device, key and lock system. Background Technology

[0002] Currently, existing lock cylinders are very insecure once their original key is lost or copied by others. People often consider replacing the lock cylinder from the lock or door lock or equipment to ensure security. However, directly replacing and discarding the lock cylinder is extremely wasteful and regrettable. Moreover, replacing the lock cylinder requires a very complicated operation and takes a lot of time, which is a very troublesome thing. Even if it happens once or twice a year, it is hard to accept.

[0003] Patent CN201910318435.3 provides a blade lock cylinder and its code-changing method, lock, key, and lock system. Its main shortcomings are sixfold: First, it uses a screwdriver to turn an adjusting screw to engage or disengage the drive block and clutch blade. However, due to the inaccurate positioning of the threaded drive and the small torque required to turn the screwdriver, the operator cannot accurately perceive the engagement position of the drive block and clutch blade. Too many turns of the screw may cause the drive block and clutch blade to disengage, and the lock cylinder to deform, leading to jamming of the mechanism. Too few turns may result in the drive block and clutch blade not engaging, causing code-changing failure. Second, the clutch block is located on the lock cylinder, resulting in a smaller total number of blades and thus a smaller overall combination, ultimately increasing the interlocking rate. Third, the clutch block is located on the lock cylinder, and due to the limited volume of the lock cylinder, it is only suitable for axial movement verification. Fourth, due to their inherent structural characteristics, the clutch teeth on the clutch plate and drive block separate when the drive block drives the clutch block, increasing the unlocking error and requiring extremely high precision. Furthermore, this increases the resistance to movement of the drive block and clutch plate during unlocking. Fifth, the clutch plates are exposed for verification, thus failing to prevent technical unlocking. Sixth, they cannot idle, making them unable to prevent forced unlocking. Therefore, this invention has numerous shortcomings.

[0004] There are also lock cylinders on the market that use a key-changing tool to slide the clutch block to perform key-changing operations. However, if the operator does not follow the operating procedure or the clutch block is not reliably fixed in the clutch position, and the operator pulls out the key, the clutch blade will be incorrectly engaged in the clutch groove of the mismatched drive block. This will not only cause the key-changing operation to fail, but also prevent the lock cylinder from being opened. Summary of the Invention

[0005] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description, claims, and other accompanying drawings.

[0006] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a coded lock cylinder and its coded device, lock, key and lock system.

[0007] A coded lock cylinder, including

[0008] The lock housing has a first mounting cavity, a second mounting cavity communicating with the first mounting cavity, a second key slot, and a drive component mounting slot inside. The second key slot is located between the first and second mounting cavities, and the drive component mounting slot is located inside the second mounting cavity and communicates with the second key slot.

[0009] A lock cylinder is rotatably disposed within the first mounting cavity. The front end of the lock cylinder is provided with a key groove, which extends along the rear end to form a first key groove.

[0010] The coding device is installed in the second mounting cavity of the lock housing. The coding device includes a clutch, a coding component, and a driving component. The clutch is movably disposed in a clutch mounting groove provided in the second mounting cavity of the lock housing. The clutch is provided with a coding component mounting groove. The coding component is movably disposed in the coding component mounting groove. The coding component and the driving component are respectively provided with a first coding tooth groove and a second coding tooth groove that are mutually disengaged and matched.

[0011] The clutch has an engaged position and an disengaged position. When the clutch is in the engaged position, the first and second coding grooves engage with each other, and the drive member can move the coding member. When the clutch is in the disengaged position, the first coding groove disengages from the second coding groove, and the drive member cannot move the coding member.

[0012] In one embodiment, the first and second coding grooves are arranged in an interlocking manner on the coding member and the driving member, including at least one tooth and several grooves.

[0013] In one embodiment, the first and second coding slots are arranged on the coding member and the driving member in a clutch manner, including at least one tooth and several slots.

[0014] In one embodiment, the coding member and the driving member further include an anti-separation device, which includes a stop portion disposed on the coding member and / or the driving member.

[0015] When the key is inserted and the drive unit moves, the second coded groove on the drive unit will exert a pushing force on the first coded groove on the coded component. Since the groove is not at a 90° angle, this pushing force will cause the drive unit and the coded component to separate to a certain extent. The anti-separation device is used to prevent the drive unit and the coded component from separating.

[0016] In one embodiment, the coding device further includes a clutch reset member that causes the clutch to engage.

[0017] In one embodiment, the coding device further includes a drive reset member that causes the drive member to perform a reset movement.

[0018] In one embodiment, a drive device is also included, which includes a drive rod, a drive rod mounting groove, and a driven part. The drive rod mounting groove is disposed on the lock housing, penetrates to the key insertion end, and communicates with the second mounting groove. The drive device is disposed in the drive mounting groove. The drive rod is provided with a drive part, and the driven part is disposed on the clutch. The drive part can drive the driven part to make the clutch perform a disengaging or engaging motion.

[0019] In one embodiment, the drive unit employs a cam structure or a protruding rounded corner structure.

[0020] In one embodiment, the drive device further includes a drive rod reset member for causing the drive rod to perform a reset movement.

[0021] In one embodiment, the drive device further includes a first seal, a first seal groove, and a first seal limiting groove. The first seal groove is disposed on the lock housing and communicates with the drive rod groove. The first seal is disposed in the first seal groove to limit the forward and backward movement distance of the drive rod.

[0022] In one embodiment, the drive device further includes a second seal and a second seal groove, the second seal groove being disposed on the lock housing and communicating with the drive rod groove, the second seal being disposed in the second seal groove to limit the forward and backward movement distance of the drive rod.

[0023] In one embodiment, the drive unit further includes a third seal fixedly disposed within the drive rod slot to limit the forward and backward movement distance of the drive rod.

[0024] In one embodiment, when only a second or third seal is used, the drive rod has a structure that is thinner at the front and thicker at the back. Similarly, the drive rod slot is also thinner at the front and thicker at the back. When the drive rod is installed in the drive rod slot, it cannot be pulled out from the key insertion end.

[0025] In one embodiment, the drive device further includes a drive rod reset member, which is used to cause the drive rod to perform a reset movement. One end of the drive rod reset member acts on the drive rod, and the other end acts on the lock housing, the second seal, or the third seal.

[0026] In one embodiment, the driving device further includes a limiting driving rod device, which includes a first blocking part and a first stopping part that stops the first blocking part. The first blocking part is disposed on the driving rod, and the first stopping part is disposed on the second mounting cavity wall of the lock housing.

[0027] When the push-operated lever moves and rotates to the drive state, the first stop can block the first blocked part, preventing the drive lever from retracting and resetting.

[0028] In one embodiment, a verification device is also included. The verification device is a verification device with a verification side post. The verification device with a verification side post includes a verification side post, a verification shaft, a verification channel, and a verification groove. The verification side post is provided with a verification lower side post, a first drive head or a first drive ramp. The rear end of the verification shaft extends downward to provide a linkage head and also provides a second drive head or a second drive ramp. The verification channel is provided on the clutch and the verification groove is provided on the code member.

[0029] When all the verification grooves of the code components are located in the verification channel, the verification shaft can move axially and push the first drive head or first drive ramp of the verification side post through its second drive head or second drive ramp, so that the verification side post of the verification side post enters all the verification grooves.

[0030] In one embodiment, an authorization device is also included. When the verification device is a verification device with a verification side post, a first authorization device is used, which includes a first authorization stop, a first authorization stop movable groove, and a first authorization blocking part. The first authorization stop is movably disposed in the first authorization stop movable groove. When the device is not properly unlocked, it acts behind the first authorization blocking part to block the movement of the drive rod.

[0031] In one embodiment, the authorization stop is fixedly mounted on the verification side post, or the authorization stop and the verification side post are integrally formed.

[0032] In one embodiment, a verification device is also included. The verification device is a verification device without verification side post. The verification device without verification side post includes a verification shaft, a verification channel, and a verification groove. The rear end of the verification shaft extends downward and is provided with a linkage head and a plurality of verification teeth. The verification channel is provided on the clutch and the verification groove is provided on the code setter.

[0033] When all the verification grooves of the code components are located within the verification channel, when the verification shaft moves axially, all the verification teeth located within the verification channel can enter or pass through the verification grooves respectively.

[0034] In one embodiment, an authorization device is also included. When the verification device is a verification device without verification side post, a second authorization device is used, which includes a second authorization stop, a second authorization stop movable groove, and a second authorization blocking part. The second authorization stop is movably disposed in the second authorization stop movable groove. When the device is not properly unlocked, it acts behind the first authorization blocking part to block the movement of the drive rod.

[0035] In one embodiment, the second authorization device further includes a second authorization stop reset member and a second drive unit. The second authorization stop reset member causes the second authorization stop to perform a reset movement, and the second drive unit is disposed on the verification shaft and is used to drive the second authorization stop to move.

[0036] In one embodiment, the unlocking device is a telescopic unlocking device, which includes an unlocking head, an unlocking reset member, a first surrounding groove, a second surrounding groove, and a surrounding ramp. The unlocking head is fixedly mounted on the end of the verification shaft and is used for unlocking. The unlocking reset member is used to cause the verification shaft to perform a reset movement. The first surrounding groove, the second surrounding groove, and the surrounding ramp are located at the rear end of the lock cylinder. The first surrounding groove communicates with the second surrounding groove, and the surrounding ramp is located within the second surrounding groove. The linkage head is adapted to move within the first surrounding groove and on the surrounding ramp.

[0037] In one embodiment, the unlocking device is a rotary unlocking device, which includes an unlocking shaft, an unlocking shaft reset member, an unlocking shaft telescopic groove, and an inner annular ramp. The unlocking shaft includes an unlocking head, a drive head, an annular groove, and a telescopic rod. The unlocking shaft reset member is telescopically disposed within the unlocking shaft telescopic groove, and the unlocking shaft reset member can cause the unlocking shaft to perform a reset movement. The unlocking shaft and the lock cylinder can rotate synchronously. The unlocking shaft telescopic groove is located at the rear end of the lock cylinder. The inner annular ramp is located within the first mounting cavity of the lock housing. The drive head is adapted to the inner annular ramp, and the linkage head is adapted to move within the first annular groove.

[0038] In one embodiment, a cover is also included, which is disposed on the lock housing and is used to secure the components within the second mounting cavity.

[0039] In one embodiment, a side cover is also included, which is disposed on the lock housing and is used to secure the drive member and the drive member reset member.

[0040] A lock includes a lock body and a lock cylinder, which includes a coded lock cylinder as described in any one of the preceding claims.

[0041] A coding device for actuating the clutch element described in any one of the above.

[0042] A key for unlocking the coded lock cylinder described in any of the above claims, the key having an unlocking groove that can drive the drive member from a locked position to an unlocked position.

[0043] A locking system includes a coded lock cylinder as described in any of the preceding claims, a coded device as described in the preceding claims, and a plurality of keys as described in the preceding claims, wherein the unlocking slot of each key is such that at least one first coded tooth engages with a second coded tooth.

[0044] The beneficial effects of this invention include:

[0045] The aforementioned coded lock cylinder allows for convenient replacement of existing keys with security vulnerabilities at any time through the coded device, making key replacement less cumbersome and less time-consuming.

[0046] Furthermore, by incorporating an anti-separation device, the coding device becomes more stable during the unlocking process, reducing the mutual unlocking rate and preventing problems caused by excessive misalignment due to the separation of the first coding tooth of the driving component and the second coding tooth of the coding component during the unlocking process.

[0047] Furthermore, the inclusion of a drive mechanism makes the entire key-changing process simple and quick.

[0048] Furthermore, by incorporating an authorization device, the security of the lock cylinder code-changing process can be further enhanced, and the operation can be made more standardized. Attached Figure Description

[0049] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0050] In the accompanying drawings, the same parts use the same reference numerals, and the drawings are schematic and not necessarily drawn to actual scale.

[0051] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one or more embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on such drawings without creative effort.

[0052] Figure 1 This is a schematic diagram of the lock shell structure in a coded lock cylinder according to the present invention. Figure 1 ;

[0053] Figure 2This is a cross-sectional view of the lock shell in a coded lock cylinder according to the present invention. Figure 1 ;

[0054] Figure 3 This invention relates to an explosive lock cylinder with a verification side post and employing a rotary unlocking mechanism. Figure 1 ;

[0055] Figure 4 This is a schematic diagram of the lock shell structure in a coded lock cylinder according to the present invention. Figure 2 ;

[0056] Figure 5 This is a cross-sectional view of the lock shell in a coded lock cylinder according to the present invention. Figure 2 ;

[0057] Figure 6 This invention relates to an explosive lock cylinder with no verification side post and employing a rotary unlocking mechanism. Figure 2 ;

[0058] Figure 7 This is a schematic diagram of the lock shell structure in a coded lock cylinder according to the present invention. Figure 3 ;

[0059] Figure 8 This is a cross-sectional view of the lock shell in a coded lock cylinder according to the present invention. Figure 3 ;

[0060] Figure 9 This invention relates to an explosive locking mechanism with a verification side post in a coded lock cylinder and employing a telescopic unlocking method. Figure 3 ;

[0061] Figure 10 This is a schematic diagram of the clutch component in a coded lock cylinder according to the present invention. Figure 1 ;

[0062] Figure 11 This is a schematic diagram of the clutch component in a coded lock cylinder according to the present invention. Figure 2 ;

[0063] Figure 12 This is a schematic diagram of the cooperation between the coding component and the driving component of a coding lock cylinder of the present invention, where neither the coding component nor the driving component has a stop.

[0064] Figure 13 for Figure 12 A cross-sectional schematic diagram;

[0065] Figure 14 This is a schematic diagram of a coded lock cylinder of the present invention, in which the coded component and the driving component are in a separate state. Figure 1 ;

[0066] Figure 15 for Figure 14 Schematic diagram of the combined state Figure 1 ;

[0067] Figure 16 This is a schematic diagram of a coded lock cylinder of the present invention, in which the coded component and the driving component are in a separate state. Figure 2 ;

[0068] Figure 17 for Figure 16 Schematic diagram of the combined state Figure 2 ;

[0069] Figure 18 This is a schematic diagram of the structure of the driving component in a coded lock cylinder according to the present invention. Figure 3 ;

[0070] Figure 19 for Figure 18 Schematic diagram of the combined state Figure 3 ;

[0071] Figure 20 This is a schematic diagram showing the first and second coding tooth grooves arranged in an interlocking manner in a coding lock cylinder according to the present invention.

[0072] Figure 21 This is a schematic diagram of the first and second coding tooth grooves in a coding lock cylinder of the present invention, arranged in a clutch-like manner;

[0073] Figure 22 This is a schematic diagram of a key-containing lock cylinder according to the present invention. Figure 3 ;

[0074] Figure 23 This is a schematic diagram showing the object orientation of components in a coded lock cylinder according to the present invention.

[0075] Figure 24 This is a schematic diagram showing the positions of the first authorization stop and the first authorization blocking part in a coded lock cylinder according to the present invention. Figure 1 .

[0076] Figure 25 This is a schematic diagram showing the orientation of the first authorization stop and the first authorization blocking part in a coded lock cylinder according to the present invention. Figure 2 .

[0077] Figure 26 This is a schematic diagram showing the orientation of the first authorization stop and the first authorization blocking part in a coded lock cylinder according to the present invention. Figure 3 .

[0078] Explanation of key figure labels:

[0079] 1. Lock case;

[0080] 11. First mounting cavity; 12. Second mounting cavity; 121. Clutch mounting slot; 122. Drive mounting slot;

[0081] 13. Second key slot;

[0082] 2. Locking cylinder;

[0083] 21. Key slot; 211. First key slot;

[0084] 31. Clutch assembly; 311. Mounting slot for locking mechanism; 31s. Clutch assembly reset mechanism;

[0085] 32. Coding component; 321. First coding tooth groove;

[0086] 33. Driving component; 331. Second coding tooth groove; 332. First driving part; 33s. Driving component reset component;

[0087] 341. Stop section;

[0088] 41. Drive rod; 411. Drive unit;

[0089] 42. Drive rod mounting slot;

[0090] 43. Driven part;

[0091] 441. First blocking part; 442. First stopping part;

[0092] 45. Backend;

[0093] 4s11, First seal; 4s12, First seal groove; 4s13, First seal spacing groove;

[0094] 4s21, Second seal; 4s22, Second seal slot;

[0095] 51. Verify the axis;

[0096] 511. Linkage head; 512. Second drive head or second drive ramp; 513. Verification gear;

[0097] 52. Verification Channel;

[0098] 53. Verify the groove;

[0099] 54. Verify the side pillars;

[0100] 542. First drive head or first drive ramp; 54s. Verify side post reset component;

[0101] 552. First authorized stop; 553. First authorized blocking part;

[0102] 554. First authorized stop component movable groove;

[0103] 562. Second authorized stop;

[0104] 564. Second authorized stop movable groove; 565. Second drive unit; 562s. Second authorized stop reset component;

[0105] 61. Unlock the axis;

[0106] 611. Unlocking head; 612. Drive head; 613. Annular groove; 614. Telescopic rod; 615. Unlocking shaft telescopic groove;

[0107] 616. Inner circular ramp rail;

[0108] 62. Unlock the lock;

[0109] 622, Second circumferential groove; 6221, circumferential ramp rail; 62s, Unlocking and resetting component;

[0110] 7. Cover; 8. Side cover; 9. Key; 91. First key; 92. Second key. Detailed Implementation

[0111] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings and examples, so that the process of how the present invention uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly. It should be noted that, as long as there is no conflict, the various embodiments and features in the various embodiments of the present invention can be combined with each other, and the resulting technical solutions are all within the protection scope of the present invention.

[0112] Furthermore, numerous specific details are set forth in the following description for illustrative purposes to provide a thorough understanding of the embodiments of the invention. However, it will be apparent to those skilled in the art that the invention may be practiced without the specific details or particular methods described herein.

[0113] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two main bodies are not connected through a transitional structure, but rather formed as a whole through a connecting structure. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0114] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Example

[0115] Reference Figure 1-3 , Figure 1 This is a schematic diagram of the structure of the lock shell 1 in a coded lock cylinder according to the present invention. Figure 1 ; Figure 2 This is a cross-sectional view of the lock shell 1 in a coded lock cylinder according to the present invention. Figure 1 ; Figure 3 This invention relates to an explosive lock cylinder with a verification side post 54 and employing a rotary unlocking mechanism. Figure 1 ;

[0116] This embodiment provides a coded lock cylinder, including a lock shell 1, a lock cylinder 2, a coded device, a drive device, a verification device, an unlocking device, a cover 7, a side cover 8, and other components.

[0117] The lock housing 1 has a first mounting cavity 11, a second mounting cavity 12 communicating with the first mounting cavity 11, a second key slot 13, and a drive component mounting slot 122 inside. The second key slot 13 is located between the first mounting cavity 11 and the second mounting cavity 12, and the drive component mounting slot 122 is located inside the second mounting cavity 12 and communicates with the second key slot 13.

[0118] The lock cylinder 2 is rotatably disposed in the first mounting cavity 11 inside the lock shell 1. The front end of the lock cylinder 2 is provided with a key groove 21, which extends to the rear end of the lock cylinder 2 to form a first key groove 211. The end of the lock cylinder 2 is provided with an unlocking shaft telescopic groove 615.

[0119] The coding device is installed in the second mounting cavity 12 of the lock housing 1. The coding device includes a clutch 31, a coding component 32, a driving component 33, a clutch reset component 31s, and a driving component reset component 33s. The clutch 31 is movably disposed in a clutch mounting groove 121 provided in the second mounting cavity 12 of the lock housing 1. The clutch 31 is provided with a coding component mounting groove 311. The coding component 32 is movably disposed in the coding component mounting groove 311. The coding component 32 and the driving component 33 are respectively provided with a first coding tooth groove 321 and a second coding tooth groove 331 that are mutually engaged and matched. The clutch reset component 31s causes the clutch 31 to perform an engagement movement, and the driving component reset component 33s causes the driving component 33 to perform a reset movement.

[0120] The clutch 31 has an engaged position and a disengaged position. When the clutch 31 is in the engaged position, the first coding groove 321 and the second coding groove 331 are engaged with each other, and the driving member 33 can drive the coding member 32 to move. When the clutch 31 is in the disengaged position, the first coding groove 321 is disengaged from the second coding groove 331, and the driving member 33 cannot drive the coding member 32 to move.

[0121] The first coding groove 321 and the second coding groove 331 are arranged on the coding member 32 and the driving member 33 in a clutch manner, including at least one tooth and several grooves.

[0122] The anti-separation device includes a stop 341, which is disposed on the code member 32 and / or the drive member 33. When the key 9 is inserted and drives the drive member 33 to move, the second code groove 331 on the drive member 33 will exert a pushing force on the first code groove 321 on the code member 32. Since the groove is not at a 90° angle, this pushing force will cause the drive member 33 and the code member 32 to separate to a certain extent. The anti-separation device is used to prevent the drive member 33 and the code member 32 from separating.

[0123] The drive device includes a drive rod 41, a drive rod mounting groove 42, a driven part 43, a first seal 4s11, a first seal groove 4s12, a first seal limiting groove 4s13, a third seal, a drive rod reset part, and a drive rod limiting device.

[0124] The drive rod mounting groove 42 is located on the lock housing 1, penetrating to the key insertion end and communicating with the second mounting cavity 12. The drive rod 41 is located within the drive rod mounting groove 42, and the drive rod 41 has a drive part 411. The driven part 43 is located on the clutch 31. The drive part 411 can drive the driven part 43 to cause the clutch 31 to perform disengagement or engagement movements. The drive part 411 adopts a cam structure or a protruding rounded corner structure.

[0125] The first sealing groove 4s12 is provided on the lock housing 1 and communicates with the drive rod mounting groove 42. The first sealing element 4s11 is provided in the first sealing groove 4s12 and located in the first sealing distance limiting groove 4s13 to limit the forward and backward movement distance of the drive rod 41.

[0126] The third seal is fixedly installed in the drive rod mounting slot 42 to limit the forward and backward movement distance of the drive rod 41.

[0127] The drive rod 41 has a structure that is thinner at the front and thicker at the back. Similarly, the drive rod mounting groove 42 is also narrower at the front and wider at the back. When the drive rod 41 is installed in the drive rod mounting groove 42, it cannot be pulled out from the key 9 insertion end.

[0128] The drive rod reset component is used to cause the drive rod 41 to perform a reset movement. One end of the drive rod reset component acts on the rear end 45 of the drive rod 41, and the other end acts on the lock housing 1 or the third seal.

[0129] The limiting drive rod device includes a first blocking part 441 and a first stopping part 442 that stops the first blocking part 441. The first blocking part 441 is provided on the drive rod 41, and the first stopping part 442 is provided on the wall of the second mounting cavity 12 of the lock housing 1. When the drive rod 41 is pressed to move and rotate to the driving state, the first stopping part 442 can block the first blocking part 441 of the drive rod 41 so that the drive rod 41 does not move backward to reset.

[0130] The verification device is a verification device with a verification side post 54. The verification device with a verification side post 54 includes a verification side post 54, a verification shaft 51, a verification channel 52, and a verification groove 53. The verification side post 54 is provided with a verification lower side post and a first drive head or a first drive ramp 542. The rear end of the verification shaft 51 extends downward to provide a linkage head 511 and a second drive head or a second drive ramp 512. The verification channel 52 is provided on the clutch 31, and the verification groove 53 is provided on the setting member 32.

[0131] When all the verification grooves 53 of the code-setting components 32 are located within the verification channel 52, when the verification shaft 51 moves axially, its second drive head or second drive ramp 512 pushes the first drive head or first drive ramp 542 of the verification side post 54, causing the verification lower side post of the verification side post 54 to enter all the verification grooves 53.

[0132] The authorization device employs a first authorization device 1, which includes a first authorization stop 552, a first authorization blocking part 553, and a first authorization stop movable groove 554. The first authorization stop 552 is movably disposed within the first authorization stop movable groove 554, and when not properly unlocked, it acts behind the first authorization blocking part 553 (e.g., Figure 21 , Figure 22 This is used to block the movement of the drive rod 41. The first authorized stop 552 is fixedly mounted on the verification side post 54 or the first authorized stop 552 and the verification side post 54 are integrally formed.

[0133] The unlocking device is a rotary unlocking device, which includes an unlocking shaft 61, an unlocking shaft reset component, an unlocking shaft telescopic groove 615, and an inner annular ramp 616. The unlocking shaft 61 includes an unlocking head 611, a driving head 612, an annular groove 613, and a telescopic rod 614. The unlocking shaft reset component is telescopically disposed within the unlocking shaft telescopic groove 615, which can cause the unlocking shaft 61 to perform a reset movement. The unlocking shaft 61 and the lock cylinder 2 can rotate synchronously. The unlocking shaft telescopic groove 615 is located at the rear end of the lock cylinder 2. The inner annular ramp 616 is located within the first mounting cavity 11 of the lock housing 1. The driving head 612 is adapted to the inner annular ramp 616, and the linkage head 511 is adapted to move within the first annular groove.

[0134] The working principle of key changing in this embodiment:

[0135] First, insert the correct key 9 (including the first key 91 and the second key, where the second key has an unlocking groove). At this time, the lock cylinder is in the unlocked state, that is, the unlocking groove of the second key makes all the verification grooves 53 of the code-setting components 32 located in the verification channel 52.

[0136] The second step involves rotating the first key 91 clockwise or counterclockwise from 0° to between 135° and 225°. During this rotation, the second key remains stationary in the second key slot 13 of the lock housing 1, while the first key 91 drives the lock cylinder 2 and the unlocking shaft 61 to rotate synchronously. After rotating clockwise to 90° or counterclockwise to 270°, the first key 91 and the second key are completely misaligned, i.e., the first key 91 is at the 90° position and the second key is at the 0° position. Continuing to rotate clockwise from 90° to 135° or counterclockwise from 270° to 225°, during this process, under the force of the unlocking shaft reset component, the inner drive head 612 on the unlocking shaft 61 slides from the high point to the low point of the inner annular ramp 616. This is due to the linkage head 511 on the verification shaft 51... Under the sliding action of the annular groove 613 on the unlocking shaft 61, the unlocking shaft 61 drives the verification shaft 51 to move axially synchronously. This causes the second drive head or the second drive ramp 512 to push the first drive head or the first drive ramp 542 of the verification side post 54, causing the lower verification side post of the verification side post 54 to enter the verification groove 53 of all the coding components 32. Simultaneously, it causes the first authorization stop 552 of the first authorization device 1 to move from behind the first authorization blocking part 553 on the drive rod 41 (e.g., ...). Figure 22 ) Move it to the bottom (e.g.) Figure 23 ).

[0137] Thirdly, using an auxiliary tool, press the drive lever 41 to align the drive unit 411 with the driven unit 43, and move the first authorized blocking unit 553 directly above the first authorized stop member 552 (e.g., Figure 24 The drive lever 41 is rotated without being released, and the drive part 411 pushes against the driven part 43, thereby disengaging the clutch 31. At the same time, the first coding groove 321 of the coding member 32 is separated from the second coding groove 331 of the drive member 33. At this time, the first blocking part 441 of the drive lever 41 is locked on the first stop part 442 on the lock housing 1, preventing the drive lever 41 from being pushed by the drive lever reset member, so that the drive lever 41 keeps pushing against the clutch 31.

[0138] Fourth, turn the first key 91 clockwise or counterclockwise to the 0° position. During this rotation, the first key 91 drives the lock cylinder 2 and the unlocking shaft 61 to rotate synchronously, from 135° to 90° clockwise or from 225° to 270° counterclockwise. During this time, the inner drive head 612 on the unlocking shaft 61 slides from the lower part to the higher part of the inner annular ramp 616. Due to the sliding action of the linkage head 511 on the verification shaft 51 in the annular groove 613 on the unlocking shaft 61, the unlocking shaft 61 drives the verification shaft 51 to move synchronously in the opposite axial direction. At the same time, because the first authorization stop 552 is directly below the first authorization blocking part 341 (e.g., Figure 24 Furthermore, the first authorized stop 552 and the verification side post 54 are integral, so even under the force of the verification side post reset member 54s, the first authorized stop 552 is stuck by the first authorized blocking part 341, preventing the verification side post 54 and the first authorized stop 552 from resetting and moving.

[0139] Fifth step, remove key 9 (including first key 91 and second key), and replace the second key of key 9 with second key 92B.

[0140] Step 6: Insert the correct key 9 again (including the first key 91 and the second key 92B, wherein the second key 92B is provided with an unlocking groove). The unlocking groove of the second key 92B pushes the drive member 33 to make its second coding groove 331 correspond to the position of the first coding groove 321 of the coding member 32.

[0141] Step 7: Turn key 9 clockwise or counterclockwise again from 0° to between 90° and 270°. During the rotation, the first key 91 drives the lock cylinder 2 and the unlocking shaft 61 to rotate synchronously. After rotating a certain angle, the first key 91 and the second key 92B are completely misaligned. At the same time, under the action of the unlocking shaft reset component, the inner drive head 612 on the unlocking shaft 61 slides from the high point to the low point of the inner annular ramp 616. Due to the sliding action of the linkage head 511 on the verification shaft 51 in the annular groove 613 on the unlocking shaft 61, the unlocking shaft 61 drives the verification shaft 51 to move axially synchronously.

[0142] Step 8: Rotate the drive rod 41 again using the auxiliary tool. The drive part 411 moves away from the driven part 43 of the clutch 31, and at the same time, the first blocking part 441 of the drive rod 41 moves away from the first stop part 442 on the lock housing 1. Then, under the reset force of the clutch reset member 31s, the clutch 31 is put into the engaged position, and the first setting tooth groove 321 of the setting member 32 engages with the second setting tooth groove 331 of the drive member 33. Afterwards, the drive rod 41 returns to its original position under the reset force of the drive rod reset member, and the first authorized blocking part 341 moves away from directly above the first authorized stop member 552 (e.g., Figure 24 Remove.

[0143] In the ninth step, the first key 91 is rotated clockwise or counterclockwise to the 0° position. During this rotation, the first key 91 drives the lock cylinder 2 and the unlocking shaft 61 to rotate synchronously, from 135° to 90° clockwise or from 225° to 270° counterclockwise. During this time, the inner drive head 612 on the unlocking shaft 61 slides from the lower part to the higher part of the inner annular ramp 616. Due to the sliding action of the linkage head 511 on the verification shaft 51 in the annular groove 613 on the unlocking shaft 61, the unlocking shaft 61 drives the verification shaft 51 to move synchronously in the opposite axial direction. At the same time, under the action of the verification side post reset member 54s, the verification side post 54s and the first authorization stop member 552 are reset and moved, so that the first authorization stop member 552 moves to the rear end of the first authorization blocking part 341.

[0144] Step 10: Remove key 9 (including first key 91 and second key 92B). At this time, the lock cylinder is in the locked state, thus completing the key exchange operation.

[0145] It should be noted that before key 9 was replaced, the second key of key 9 could open the lock cylinder, but the second key 92B could not; after replacement, the second key 92B of key 9 can open the lock cylinder, but the second key cannot. Example

[0146] Reference Figure 4-6 , Figure 4 This is a schematic diagram of the structure of the lock shell 1 in a coded lock cylinder according to the present invention. Figure 2 ; Figure 5 This is a cross-sectional view of the lock shell 1 in a coded lock cylinder according to the present invention. Figure 2 ; Figure 6 This invention relates to an explosive lock cylinder with a coded lock core that has no verification side post 54 and uses a rotary unlocking mechanism. Figure 2 ;

[0147] This embodiment provides a coded lock cylinder, including a lock shell 1, a lock cylinder 2, a coded device, a drive device, a verification device, an unlocking device, a cover 7, a side cover 8, and other components.

[0148] The lock housing 1 has a first mounting cavity 11, a second mounting cavity 12 communicating with the first mounting cavity 11, a second key slot 13, and a drive component mounting slot 122 inside. The second key slot 13 is between the first mounting cavity 11 and the second mounting cavity 12, and the drive component mounting slot 122 is located inside the second mounting cavity 12.

[0149] The lock cylinder 2 is rotatably disposed in the first mounting cavity 11 inside the lock shell 1. The front end of the lock cylinder 2 is provided with a key groove 21, which extends to the rear end of the lock cylinder 2 to form a first key groove 211. The end of the lock cylinder 2 is provided with an unlocking shaft telescopic groove 615.

[0150] The coding device is installed in the second mounting cavity 12 of the lock housing 1. The coding device includes a clutch 31, a coding component 32, a driving component 33, a clutch reset component 31s, and a driving component reset component 33s. The clutch 31 is movably disposed in a clutch mounting groove 121 provided in the second mounting cavity 12 of the lock housing 1. The clutch 31 is provided with a coding component mounting groove 311. The coding component 32 is movably disposed in the coding component mounting groove 311. The coding component 32 and the driving component 33 are respectively provided with a first coding tooth groove 321 and a second coding tooth groove 331 that are mutually engaged and matched. The clutch reset component 31s causes the clutch 31 to perform an engagement movement, and the driving component reset component 33s causes the driving component 33 to perform a reset movement.

[0151] The clutch 31 has an engaged position and an disengaged position. When the clutch 31 is in the engaged position, the first marking groove 321 and the second marking groove 331 are engaged with each other, so the driving member 33 can drive the marking member 32 to move. When the clutch 31 is in the disengaged position, the first marking groove 321 disengages from the second marking groove 331, so the driving member 33 cannot drive the marking member 32 to move.

[0152] The first coding groove 321 and the second coding groove 331 are arranged on the coding member 32 and the driving member 33 in a clutch manner, including at least one tooth and several grooves.

[0153] The anti-separation device includes a stop 341, which is disposed on the code member 32 and / or the drive member 33. When the key 9 is inserted and drives the drive member 33 to move, the second code groove 331 on the drive member 33 will exert a pushing force on the first code groove 321 on the code member 32. Since the groove is not at a 90° angle, this pushing force will cause the drive member 33 and the code member 32 to separate to a certain extent. The anti-separation device is used to prevent the drive member 33 and the code member 32 from separating.

[0154] The drive device includes a drive rod 41, a drive rod mounting groove 42, a driven part 43, a second seal 4s21, a second seal groove 4s22, a drive rod reset part, and a drive rod limiting device.

[0155] The drive rod mounting groove 42 is located on the lock housing 1, penetrating to the key insertion end and communicating with the second mounting cavity 12. The drive rod 41 is located within the drive rod mounting groove 42, and the drive rod 41 has a drive part 411. The driven part 43 is located on the clutch 31. The drive part 411 can drive the driven part 43 to cause the clutch 31 to perform disengagement or engagement movements. The drive part 411 adopts a cam structure or a protruding rounded corner structure.

[0156] The second sealing groove 4s22 is located on the lock housing 1 and communicates with the drive rod mounting groove 42. The second sealing element 4s21 is located in the second sealing groove 4s22 to limit the forward and backward movement distance of the drive rod 41.

[0157] The drive rod 41 has a structure that is thinner at the front and thicker at the back (end). Similarly, the drive rod mounting groove 42 is also narrower at the front and wider at the back. When the drive rod 41 is installed in the drive rod mounting groove 42, it cannot be pulled out from the key 9 insertion end.

[0158] The drive rod reset component is used to cause the drive rod 41 to perform a reset movement. One end of the drive rod reset component acts on the rear end 45 of the drive rod 41, and the other end acts on the second seal 4s21.

[0159] The limiting drive rod device includes a first blocking part 441 and a first stopping part 442 that stops the first blocking part 441. The first blocking part 441 is provided on the drive rod 41, and the first stopping part 442 is provided on the wall of the second mounting cavity 12 of the lock housing 1. When the drive rod 41 is pressed to move and rotate to the driving state, the first stopping part 442 can block the first blocking part 441 of the drive rod 41 so that the drive rod 41 does not move backward to reset.

[0160] The verification device is a verification device without verification side post 54. The verification device without verification side post 54 includes verification shaft 51, verification channel 52, verification groove 53. The rear end of the verification shaft 51 extends downward to provide a linkage head 511, and also provides a number of verification teeth 513 and a second drive part 565. The verification channel 52 is provided on the clutch 31, and the verification groove 53 is provided on the code member 32.

[0161] When all the verification grooves 53 of the code-setting components 32 are located within the verification channel 52, when the verification shaft 51 moves axially, all its verification teeth 513 will pass through all the verification grooves 53.

[0162] The authorization device employs a second authorization mechanism, comprising a second authorization stop 562, a second authorization receiving portion, and a second authorization stop movable groove 564. The second authorization stop 562 is movably disposed within the second authorization stop movable groove 564, and when not properly unlocked, it acts behind the second authorization receiving portion (e.g., Figure 21 , 22 The second authorization device also includes a second authorization stop reset member 562s and a second drive unit 565. The second authorization stop reset member 562s causes the second authorization stop member 562 to perform a reset movement. The second drive unit 565 is provided on the verification shaft 51 and is used to push the second authorization stop member 562 to move.

[0163] The unlocking device is a rotary unlocking device, which includes an unlocking shaft 61, an unlocking shaft reset component, an unlocking shaft telescopic groove 615, and an inner annular ramp 616. The unlocking shaft 61 includes an unlocking head 611, a driving head 612, an annular groove 613, and a telescopic rod 614. The unlocking shaft reset component is telescopically disposed within the unlocking shaft telescopic groove 615, which can cause the unlocking shaft 61 to perform a reset movement. The unlocking shaft 61 and the lock cylinder 2 can rotate synchronously. The unlocking shaft telescopic groove 615 is located at the rear end of the lock cylinder 2. The inner annular ramp 616 is located within the first mounting cavity 11 of the lock housing 1. The driving head 612 is adapted to the inner annular ramp 616, and the linkage head 511 is adapted to move within the first annular groove.

[0164] The cover 7 is provided on the lock housing 1 and is used to fix the components inside the second mounting cavity 12.

[0165] The side cover 8 is mounted on the lock housing 1 by screws or fasteners and is used to fix the drive component 33 and the drive component reset component 33s.

[0166] The working principle of key changing in this embodiment:

[0167] First, insert the correct key 9 (including the first key 91 and the second key, where the second key has an unlocking groove). At this time, the lock cylinder is in the unlocked state, that is, the unlocking groove of the second key makes all the verification grooves 53 of the code-setting components 32 located in the verification channel 52.

[0168] The second step involves rotating the first key 91 clockwise or counterclockwise from 0° to between 135° and 225°. During this rotation, the second key remains stationary in the second key slot 13 of the lock housing 1, while the first key 91 drives the lock cylinder 2 and the unlocking shaft 61 to rotate synchronously. After rotating clockwise to 90° or counterclockwise to 270°, the first key 91 and the second key are completely misaligned, i.e., the first key 91 is at the 90° position and the second key is at the 0° position. Continuing to rotate clockwise from 90° to 135° or counterclockwise from 270° to 225°, during this process, under the force of the unlocking shaft reset component, the inner drive head 612 on the unlocking shaft 61 slides from the high point to the low point of the inner annular ramp 616. This is due to the linkage head 511 on the verification shaft 51... Under the sliding action of the annular groove 613 on the unlocking shaft 61, the unlocking shaft 61 drives the verification shaft 51 to move axially synchronously, thereby causing the verification tooth 513 to move through the verification groove 53 of the coding member 32. At the same time, the second driving part 565 pushes the second authorization stop 562, causing it to move from behind the second authorization blocking part (e.g., Figure 22 Move it to the bottom (e.g.) Figure 23 ).

[0169] Thirdly, using an auxiliary tool, press the drive lever 41 to align the drive part 411 with the driven part 43, and move the second authorized stop part directly above the second authorized stop member 562 (e.g., Figure 24 The drive lever 41 is rotated without being released, and the drive part 411 pushes against the driven part 43, thereby disengaging the clutch 31. At the same time, the first coding groove 321 of the coding member 32 is separated from the second coding groove 331 of the drive member 33. At this time, the first blocking part 441 of the drive lever 41 is locked on the first stop part 442 on the lock housing 1, preventing the drive lever 41 from being pushed by the drive lever reset member, so that the drive lever 41 keeps pushing against the clutch 31.

[0170] Fourth, turn key 9 clockwise or counterclockwise to the 0° position. During this rotation, the first key 91 drives the lock cylinder 2 and the unlocking shaft 61 to rotate synchronously, from 135° to 90° clockwise or from 225° to 270° counterclockwise. During this time, the inner drive head 612 on the unlocking shaft 61 slides from the lower part to the higher part of the inner annular ramp 616. Due to the sliding action of the linkage head 511 on the verification shaft 51 in the annular groove 613 on the unlocking shaft 61, the unlocking shaft 61 drives the verification shaft 51 to move synchronously in the opposite axial direction. At the same time, because the second authorization stop 562 is directly below the second authorization stop part (e.g., Figure 24 Therefore, even under the action of the second authorization stop reset member 562s, the second authorization stop member 562 is stuck by the second authorization blocking part 563, preventing the second authorization stop member 562 from resetting.

[0171] Fifth step, remove key 9 (including first key 91 and second key), and replace the second key of key 9 with second key 92B.

[0172] Step 6: Insert the correct key 9 again (including the first key 91 and the second key 92B, wherein the second key 92B is provided with an unlocking groove). The unlocking groove of the second key 92B pushes the drive member 33 to make its second coding groove 331 correspond to the position of the first coding groove 321 of the coding member 32.

[0173] Step 7: Turn key 9 clockwise or counterclockwise again from 0° to between 90° and 270°. During the rotation, the first key 91 drives the lock cylinder 2 and the unlocking shaft 61 to rotate synchronously. After rotating a certain angle, the first key 91 and the second key 92B are completely misaligned. At the same time, under the action of the unlocking shaft reset component, the inner drive head 612 on the unlocking shaft 61 slides from the high point to the low point of the inner annular ramp 616. Due to the sliding action of the linkage head 511 on the verification shaft 51 in the annular groove 613 on the unlocking shaft 61, the unlocking shaft 61 drives the verification shaft 51 to move axially synchronously.

[0174] Step 8: Rotate the drive rod 41 again using the auxiliary tool. The drive part 411 moves away from the driven part 43 of the clutch 31, and at the same time, the first blocking part 441 of the drive rod 41 moves away from the first stop part 442 on the lock housing 1. Then, under the reset force of the clutch reset member 31s, the clutch 31 is put into the engaged position, and the first setting tooth groove 321 of the setting member 32 engages with the second setting tooth groove 331 of the drive member 33. Afterwards, the drive rod 41 returns to its original position under the reset force of the drive rod reset member, and the second authorized blocking part moves away from directly above the second authorized stop member 562 (e.g., Figure 24 Remove.

[0175] In the ninth step, the first key 91 is rotated clockwise or counterclockwise to the 0° position. During this rotation, the first key 91 drives the lock cylinder 2 and the unlocking shaft 61 to rotate synchronously, from 135° to 90° clockwise or from 225° to 270° counterclockwise. During this time, the inner drive head 612 on the unlocking shaft 61 slides from the lower part to the higher part of the inner annular ramp 616. Due to the sliding action of the linkage head 511 on the verification shaft 51 in the annular groove 613 on the unlocking shaft 61, the unlocking shaft 61 drives the verification shaft 51 to move synchronously in the opposite axial direction. At the same time, under the action of the second authorization stop reset member 562s, the first authorization stop member 552 is reset and moved, thereby moving the second authorization stop member 562 to the rear end of the second authorization blocking part.

[0176] Step 10: Remove key 9 (including first key 91 and second key 92B). At this time, the lock cylinder is in the locked state, thus completing the key exchange operation.

[0177] It should be noted that before key 9 was replaced, the second key of key 9 could open the lock cylinder, but the second key 92B could not; after replacement, the second key 92B of key 9 can open the lock cylinder, but the second key cannot. Example

[0178] Reference Figure 7-9 , Figure 7 This is a schematic diagram of the structure of the lock shell 1 in a coded lock cylinder according to the present invention. Figure 3 ; Figure 8 This is a cross-sectional view of the lock shell 1 in a coded lock cylinder according to the present invention. Figure 3 ; Figure 9 This invention relates to an explosive locking mechanism with a verification side post 54 in a coded lock cylinder and employing a telescopic unlocking method. Figure 3 ;

[0179] This embodiment provides a coded lock cylinder, including a lock shell 1, a lock cylinder 2, a coded device, a drive device, a verification device, an unlocking device, a cover 7, a side cover 8, and other components.

[0180] The lock housing 1 has a first mounting cavity 11, a second mounting cavity 12 communicating with the first mounting cavity 11, a second key slot 13, and a drive component mounting slot 122 inside. The second key slot 13 is between the first mounting cavity 11 and the second mounting cavity 12, and the drive component mounting slot 122 is located inside the second mounting cavity 12.

[0181] The lock cylinder 2 is rotatably disposed in the first mounting cavity 11 inside the lock shell 1. The front end of the lock cylinder 2 is provided with a key groove 21, which extends to the rear end of the lock cylinder 2 to form a first key groove 211.

[0182] The coding device is installed in the second mounting cavity 12 of the lock housing 1. The coding device includes a clutch 31, a coding component 32, a driving component 33, a clutch reset component 31s, and a driving component reset component 33s. The clutch 31 is movably disposed in a clutch mounting groove 121 provided in the second mounting cavity 12 of the lock housing 1. The clutch 31 is provided with a coding component mounting groove 311. The coding component 32 is movably disposed in the coding component mounting groove 311. The coding component 32 and the driving component 33 are respectively provided with a first coding tooth groove 321 and a second coding tooth groove 331 that are mutually engaged and matched. The clutch reset component 31s causes the clutch 31 to perform an engagement movement, and the driving component reset component 33s causes the driving component 33 to perform a reset movement.

[0183] The clutch 31 has an engaged position and a disengaged position. When the clutch 31 is in the engaged position, the first coding groove 321 and the second coding groove 331 are engaged with each other, and the driving member 33 can drive the coding member 32 to move. When the clutch 31 is in the disengaged position, the first coding groove 321 is disengaged from the second coding groove 331, and the driving member 33 cannot drive the coding member 32 to move.

[0184] The first coding groove 321 and the second coding groove 331 are arranged on the coding member 32 and the driving member 33 in a clutch manner, including at least one tooth and several grooves.

[0185] The anti-separation device includes a stop 341, which is disposed on the code member 32 and / or the drive member 33. When the key 9 is inserted and drives the drive member 33 to move, the second code groove 331 on the drive member 33 will exert a pushing force on the first code groove 321 on the code member 32. Since the groove is not at a 90° angle, this pushing force will cause the drive member 33 and the code member 32 to separate to a certain extent. The anti-separation device is used to prevent the drive member 33 and the code member 32 from separating.

[0186] The drive unit includes a drive rod 41, a drive rod mounting groove 42, a driven part 43, a third seal, a drive rod reset part 41s, and a drive rod limiting device.

[0187] The drive rod mounting groove 42 is located on the lock housing 1, penetrating to the key insertion end and communicating with the second mounting cavity 12. The drive device is located within the drive mounting groove. The drive rod 41 has a drive part 411, and the driven part 43 is located on the clutch 31. The drive part 411 can drive the driven part 43 to cause the clutch 31 to perform disengagement or engagement movements. The drive part 411 adopts a cam structure or a protruding rounded corner structure.

[0188] The third seal is fixedly installed in the drive rod mounting slot 42 to limit the forward and backward movement distance of the drive rod 41.

[0189] The drive rod 41 has a structure that is thinner at the front and thicker at the back. Similarly, the drive rod mounting groove 42 is also narrower at the front and wider at the back. When the drive rod 41 is installed in the drive rod mounting groove 42, it cannot be pulled out from the key 9 insertion end.

[0190] The drive rod reset component is used to cause the drive rod 41 to perform a reset movement. One end of the drive rod reset component acts on the rear end 45 of the drive rod 41, and the other end acts on the third seal.

[0191] The limiting drive rod device includes a first blocking part 441 and a first stopping part 442 that stops the first blocking part 441. The first blocking part 441 is provided on the drive rod 41, and the first stopping part 442 is provided on the wall of the second mounting cavity 12 of the lock housing 1. When the drive rod 41 is pressed to move and rotate to the driving state, the first stopping part 442 can block the first blocking part 441 of the drive rod 41 so that the drive rod 41 does not move backward to reset.

[0192] The verification device is a verification device with a verification side post 54. The verification device with a verification side post 54 includes a verification side post 54, a verification shaft 51, a verification channel 52, and a verification groove 53. The verification side post 54 is provided with a verification lower side post and a first drive head or a first drive ramp 542. The rear end of the verification shaft 51 extends downward to provide a linkage head 511 and a second drive head or a second drive ramp 512. The verification channel 52 is provided on the clutch 31, and the verification groove 53 is provided on the setting member 32.

[0193] When all the verification grooves 53 of the code-setting components 32 are located in the verification channel 52, the verification shaft 51 can push the first drive head or first drive ramp 542 of the verification side post 54 through its second drive head or second drive ramp 512 to make the verification lower side post of the verification side post 54 enter all the verification grooves 53.

[0194] The authorization device employs a first authorization device 1, which includes a first authorization stop 552, a first authorization blocking part 553, and a first authorization stop movable groove 554. The first authorization stop 552 is movably disposed within the first authorization stop movable groove 554, and when not properly unlocked, it acts behind the first authorization blocking part 553 (e.g., Figure 21 , 22 This is used to block the movement of the drive rod 41. The first authorized stop is fixedly mounted on the verification side post 54 or the first authorized stop is integrally formed with the verification side post 54.

[0195] The unlocking device is a telescopic unlocking device, which includes an unlocking head 62, an unlocking reset member 62s, a first surrounding groove, a second surrounding groove 622, and a surrounding ramp 6221. The unlocking head 62 is fixedly installed at the end of the verification shaft 51 and is used for unlocking. The unlocking reset member 62s is used to cause the verification shaft 51 to perform a reset movement. The first surrounding groove, the second surrounding groove 622, and the surrounding ramp 6221 are located at the rear end of the lock cylinder 2. The first surrounding groove communicates with the second surrounding groove 622. The surrounding ramp 6221 is located in the second surrounding groove 622. The linkage head 511 is adapted to move within the first surrounding groove and on the surrounding ramp 6221.

[0196] The cover 7 is provided on the lock housing 1 and is used to fix the components inside the second mounting cavity 12.

[0197] The side cover 8 is mounted on the lock housing 1 by screws or fasteners and is used to fix the drive component 33 and the drive component reset component 33s.

[0198] The working principle of key changing in this embodiment:

[0199] First, insert the correct key 9 (including the first key 91 and the second key, where the second key has an unlocking groove). At this time, the lock cylinder is in the unlocked state, that is, the unlocking groove of the second key makes all the verification grooves 53 of the code-setting components 32 located in the verification channel 52.

[0200] The second step involves rotating the first key 91 clockwise or counterclockwise from 0° to between 135° and 225°. During this rotation, the second key remains stationary in the second key slot 13 of the lock housing 1, while the first key 91 drives the lock cylinder 2 to rotate synchronously. After rotating clockwise to 90° or counterclockwise to 270°, the first key 91 and the second key are completely misaligned, i.e., the first key 91 is at the 90° position and the second key is at the 0° position. Continuing to rotate clockwise from 90° to 135° or counterclockwise from 270° to 225°, during this period, under the force of the unlocking and resetting component 62s, the linkage head 511 of the shaft 51 is verified. The verification shaft 51 slides from the high point to the low point of the annular ramp 6221, i.e., the verification shaft 51 moves axially. This causes the second drive head or the second drive ramp 512 to push the verification side post 54's first drive head or the first drive ramp 542, causing the lower verification side post 54 to enter the verification groove 53 of all the coding members 32. Simultaneously, it causes the first authorization stop 552 of the first authorization device 1 to move from behind the first authorization blocking part 553 on the drive rod 41 (e.g., ...). Figure 22 Move it to the bottom (e.g.) Figure 23 ).

[0201] Thirdly, using an auxiliary tool, press the drive lever 41 to align the drive unit 411 with the driven unit 43, and move the first authorized blocking unit 553 directly above the first authorized stop member 552 (e.g., Figure 24 The drive lever 41 is rotated without being released, and the drive part 411 pushes against the driven part 43, thereby disengaging the clutch 31. At the same time, the first coding groove 321 of the coding member 32 is separated from the second coding groove 331 of the drive member 33. At this time, the first blocking part 441 of the drive lever 41 is locked on the first stop part 442 on the lock housing 1, preventing the drive lever 41 from being pushed by the drive lever reset member, so that the drive lever 41 keeps pushing against the clutch 31.

[0202] Fourth, turn the first key 91 clockwise or counterclockwise to the 0° position. During this rotation, the first key 91 drives the lock cylinder 2 and the unlocking shaft 61 to rotate synchronously, from 135° to 90° clockwise or from 225° to 270° counterclockwise. During this time, the linkage head 511 of the verification shaft 51 slides from the lower part to the higher part of the annular ramp, that is, the verification shaft 51 moves axially in the opposite direction. At the same time, because the first authorization stop 552 is directly below the first authorization stop part (e.g., Figure 24 Furthermore, the first authorization stop 552 and the verification side post 54 are integrated, so even under the action of the verification side post reset member 54s, the first authorization stop 552 is stuck by the first authorization blocking part 553, preventing the first authorization stop 552 from resetting and moving.

[0203] Fifth step, remove key 9 (including first key 91 and second key), and replace the second key of key 9 with second key 92B.

[0204] Step 6: Insert the correct key 9 again (including the first key 91 and the second key 92B, wherein the second key 92B is provided with an unlocking groove). The unlocking groove of the second key 92B pushes the drive member 33 to make its second coding groove 331 correspond to the position of the first coding groove 321 of the coding member 32.

[0205] Step 7: Turn key 9 clockwise or counterclockwise again from 0° to between 90° and 270°. During the rotation, the first key 91 drives the lock cylinder 2 and the unlocking shaft 61 to rotate synchronously. After rotating a certain angle, the first key 91 and the second key 92B are completely misaligned. At the same time, under the force of the unlocking reset piece 62s, the linkage head 511 of the verification shaft 51 slides from the high point to the low point of the annular ramp 6221, that is, the verification shaft 51 moves axially.

[0206] Step 8: Use the auxiliary tool again to rotate the drive rod 41. The drive part 411 moves away from the driven part 43 of the clutch 31. At the same time, the first blocking part 441 of the drive rod 41 moves away from the first stop part 442 on the lock housing 1. Then, under the reset force of the clutch reset member 31s, the clutch 31 is put into the engaged position, and the first setting tooth groove 321 of the setting member 32 engages with the second setting tooth groove 331 of the drive member 33. After that, the drive rod 41 returns to its original position under the force of the drive rod reset member, and the first authorized blocking part 553 moves away from directly above the first authorized stop member 552 (e.g., Figure 24 Remove.

[0207] In the ninth step, the first key 91 is rotated clockwise or counterclockwise to the 0° position. During this rotation, the first key 91 drives the lock cylinder 2 and the unlocking shaft 61 to rotate synchronously, rotating clockwise from 135° to 90° or counterclockwise from 225° to 270°. During this period, the linkage head 511 of the verification shaft 51 slides from the lower part to the higher part of the annular ramp 6221, that is, the verification shaft 51 moves axially in the opposite direction. At the same time, under the action of the verification side post reset member 54s, the first authorization stop member 552 is reset and moved, thereby moving the first authorization stop member 552 to the rear end of the first authorization blocking part 341.

[0208] Step 10: Remove key 9 (including first key 91 and second key 92B). At this time, the lock cylinder is in the locked state, thus completing the key exchange operation.

[0209] It should be noted that before key 9 was replaced, the second key of key 9 could open the lock cylinder, but the second key 92B could not; after replacement, the second key 92B of key 9 can open the lock cylinder, but the second key cannot. Example

[0210] Reference Figure 10-11 , Figure 10 This is a schematic diagram of the structure of the clutch 31 in a coded lock cylinder according to the present invention. Figure 1 ; Figure 11 This is a schematic diagram of the structure of the clutch 31 in a coded lock cylinder according to the present invention. Figure 2 ;

[0211] This embodiment describes a component of a code-setting lock cylinder, specifically a clutch element 31. Figure 10 and Figure 11 The difference in clutch component 31 lies in the different distribution of the driven part 43, in which... Figure 10 It is only placed at the top, and Figure 11 It was arranged at both the top and bottom. Figure 11The purpose of this arrangement is to replace the clutch reset member 31s, that is, when the driving part 411 of the driving rod 41 pushes the upper end of the driven part 43, the clutch 31 is disengaged, and similarly, when the driving part 411 of the driving rod 41 pushes the lower end of the driven part 43, the clutch 31 is reset to the engaged position. Example

[0212] Reference Figure 12-15 , Figure 12 This is a schematic diagram of the cooperation between the coding component 32 and the driving component 33 in a coding lock cylinder of the present invention, where neither the coding component 32 nor the driving component 33 has a stop portion 341. Figure 13 for Figure 12 A cross-sectional schematic diagram; Figure 14 This is a schematic diagram of a coded lock cylinder of the present invention, in which the coded component 32 and the driving component 33 are in a separated state. Figure 1 ; Figure 15 This is a schematic diagram of the locking component 32 and the driving component 33 in a locked cylinder according to the present invention, in a coupled state. Figure 1 ;

[0213] This embodiment is a component of a code-setting lock cylinder, which includes a code-setting component 32 and a driving component 33 (such as...). Figure 14 and 15 The component includes a stop 341, wherein both the 32 and the drive 33 are provided with a stop 341. The two stop 341 interact with each other and can effectively prevent the second 331 of the drive 33 and the first 321 of the 32 from being pushed away from each other due to their structural relationship.

[0214] If there is no stop 341 (as shown) Figure 12 and 13 When the unlocking slot of key 9 drives the first driving part 332 of driving component 33 to move left and right, the second coding groove 331 of driving component 33 and the first coding groove 321 of coding component 32 will push each other forward and backward due to their structural relationship. When they are separated by 0.21mm, a position difference of 0.12mm will be generated on the left and right sides. This will increase the unlocking error. In other words, the processing accuracy requirement will be very high, and the mutual opening rate will also increase. Example

[0215] Reference Figure 16-17 , Figure 16 This is a schematic diagram of a coded lock cylinder of the present invention, in which the coded component 32 and the driving component 33 are in a separated state. Figure 2 ; Figure 17 This is a schematic diagram of the locking component 32 and the driving component 33 in a locked cylinder according to the present invention, in a coupled state. Figure 2 ;

[0216] This embodiment is a component of a code-setting lock cylinder, which includes a code-setting component 32 and a driving component 33 (such as...). Figure 16 and 17 ), and an anti-separation device provided on the component, the anti-separation device including a stop 341, the stop 341 being provided on the drive member 33, through Figure 16 It can be clearly seen that the stop 341 is located directly opposite the second coding groove 331 of the drive member 33, so that when the first coding groove 321 of the coding member 32 is well clamped between the stop 341 and the second coding groove 331, it will not be pushed away from the front and back. Example

[0217] Reference Figure 18-19 , Figure 18 This is a schematic diagram of the structure of the driving component 33 in a coded lock cylinder according to the present invention. Figure 3 ; Figure 19 This is a schematic diagram of the combination of the coding component 32 and the driving component 33 in a coding lock cylinder according to the present invention. Figure 3 .

[0218] This embodiment is a component of a code-setting lock cylinder. This component differs significantly in structure from those in embodiments 5 and 6, and includes a code-setting component 32 and a driving component 33 (such as...). Figure 18 and 19 The component includes a stop 341, which is provided on the drive member 33 and forms a groove on the first drive member 332, so that the setting member 32 is partially clamped in the groove to prevent the drive member 33 and the setting member 32 from pushing each other apart.

[0219] It should be understood that the embodiments disclosed herein are not limited to the specific processing steps or materials disclosed herein, but should be extended to equivalent substitutions of such features as understood by those skilled in the art. It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.

[0220] The term "embodiment" in this specification refers to a specific feature or characteristic described in connection with an embodiment that is included in at least one embodiment of the invention. Therefore, phrases or "embodiments" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

[0221] It should be noted that many specific details have been set forth in the above description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed above.

[0222] It should be noted that the above embodiments are only a preferred combination of some features of the present invention. The features of the present invention can be combined in various different ways to create more embodiments. As long as the combination is within the features of the present invention, it is within the scope of protection.

Claims

1. A coded lock cylinder, comprising: The application relates to a lock, which comprises the following parts: a lock shell, a lock cylinder, a coding device, a driving device and a driving member. The lock shell is internally provided with a first installation cavity, a second installation cavity communicated with the first installation cavity, a second key slot between the first installation cavity and the second installation cavity, and a driving member installation slot in the second installation cavity and communicated with the second key slot. The lock cylinder is rotatably arranged in the first installation cavity, and the front end of the lock cylinder is provided with a key slot which extends along the rear end to form a first key slot. The coding device is arranged in the second installation cavity of the lock shell, and comprises a clutch member, a coding member and a driving member. The clutch member is movably arranged in a clutch member installation slot arranged in the second installation cavity of the lock shell, and is provided with a coding member installation slot. The coding member is movably arranged in the coding member installation slot. The coding member and the driving member are respectively provided with first coding teeth grooves and second coding teeth grooves which are matched with each other. The clutch member has a combined position and a separated position. When the clutch member is in the combined position, the first coding teeth grooves and the second coding teeth grooves are matched with each other, and the driving member can drive the coding member to move. When the clutch member is in the separated position, the first coding teeth grooves are separated from the second coding teeth grooves, and the driving member cannot drive the coding member to move. The driving device comprises a driving rod, a driving rod installation slot, and a driven part. The driving rod installation slot is arranged on the lock shell and penetrates to the key insertion end and is communicated with the second installation slot. The driving device is arranged in the driving rod installation slot. The driving rod is provided with a driving part. The driven part is arranged on the clutch member. The driving part can drive the driven part to make the clutch member do the separated motion or the combined motion. The driving part adopts a cam structure or a convex round corner structure. The driving device further comprises a first sealing member, a first sealing member slot and a first sealing member distance limiting slot. The first sealing member slot is arranged on the lock shell and is communicated with the driving rod slot. The first sealing member is arranged in the first sealing member slot and is located in the first sealing member distance limiting slot for limiting the forward and backward moving distance of the driving rod. The driving device further comprises a second sealing member and a second sealing member slot. The second sealing member slot is arranged on the lock shell and is communicated with the driving rod slot. The second sealing member is arranged in the second sealing member slot for limiting the forward and backward moving distance of the driving rod. The driving device further comprises a third sealing member. The third sealing member is fixedly arranged in the driving rod slot for limiting the forward and backward moving distance of the driving rod. When the sealing member only adopts the second sealing member or the third sealing member, the driving rod adopts a structure of being thin at the front end and thick at the rear end. Similarly, the driving rod slot is also thin at the front end and thick at the rear end. When the driving rod is arranged in the driving rod slot, the driving rod cannot be pulled out from the key insertion end. The driving device further comprises a driving rod reset member. The driving rod reset member is used for promoting the driving rod to do the reset motion. One end of the driving rod reset member acts on the driving rod, and the other end acts on the lock shell or the second sealing member or the third sealing member. The driving device further comprises a driving rod limiting device. The driving rod limiting device comprises a first blocking part and a first stop part stopping the first blocking part. The first blocking part is arranged on the driving rod, and the first stop part is arranged on the second installation cavity wall of the lock shell. When the driving rod is pressed to move and rotate to the driving state, the first stop part can block the first blocking part to make the driving rod not retreat and reset. The verification device is a verification device with a verification side post, which comprises a verification side post, a verification shaft, a verification channel, and a verification groove. The verification side post is provided with a verification lower side post and a first driving head or a first driving slope. The verification shaft is provided with a linkage head at the rear end extending downward, and is further provided with a second driving head or a second driving slope. The verification channel is arranged on the clutch, and the verification groove is arranged on the coding member. When all the verification grooves of the coding members are located in the verification channel, the first driving head or the first driving slope of the verification side post can be pushed by the second driving head or the second driving slope of the verification shaft to make the verification lower side post of the verification side post enter all the verification grooves when the verification shaft moves axially. The authorization device is a first authorization device when the verification device is a verification device with a verification side post, which comprises a first authorization stopper, a first authorization stopper moving slot, and a first authorization stopper receiving part. The first authorization stopper is movably arranged in the first authorization stopper moving slot and acts behind the first authorization stopper receiving part to block the driving rod from moving when it is not correctly unlocked.

2. The coded lock cylinder according to claim 1, wherein, The first coding tooth groove and the second coding tooth groove are arranged in a meshing manner on the coding member and the driving member, and comprise at least one tooth and a plurality of grooves.

3. The coded key cylinder according to claim 1, wherein The first coding tooth groove and the second coding tooth groove are arranged in a meshing manner on the coding member and the driving member, and comprise at least one tooth and a plurality of grooves.

4. The coded key cylinder according to claim 3, wherein, The coding member and the driving member further comprise a separation prevention device, which comprises a stopper arranged on the coding member and / or the driving member. When the key is inserted to drive the driving member to move, the second coding tooth groove on the driving member will have a pushing force on the first coding tooth groove on the coding member. Since the tooth groove is not 90°, the pushing force will cause the driving member and the coding member to separate to a certain extent. The separation prevention device is used to prevent the driving member and the coding member from separating.

5. The coded key cylinder according to claim 1, wherein, The coding device further comprises a clutch reset member, which promotes the clutch to make a combination movement.

6. The coded lock cylinder according to claim 1, wherein, The coding device further comprises a driving member reset member, which promotes the driving member to make a reset movement.

7. The coded lock cylinder according to claim 6, wherein, The authorization stopper is fixed on the verification side post or is integrally formed with the verification side post.

8. The coded key cylinder according to any one of claim 7, wherein, The verification device is a verification device without a verification side post, which comprises a verification shaft, a verification channel, and a verification groove. The verification shaft is provided with a linkage head at the rear end extending downward, and is further provided with a plurality of verification teeth. The verification channel is arranged on the clutch, and the verification groove is arranged on the coding member. When all the verification grooves of the coding members are located in the verification channel, all the verification teeth in the verification channel can enter or pass through the verification grooves when the verification shaft moves axially.

9. The coded key cylinder according to claim 8, wherein, The authorization device is a second authorization device when the verification device is a verification device without a verification side post, which comprises a second authorization stopper and a second authorization stopper moving slot. The second authorization stopper is movably arranged in the second authorization stopper moving slot and is used to block the driving rod from moving when it is not correctly unlocked.

10. The coded lock cylinder according to claim 9, wherein, The second authorization device further comprises a second authorization stop resetting member and a second driving portion. The second authorization stop resetting member is configured to facilitate the second authorization stop to perform a resetting movement. The second driving portion is arranged on the verification shaft and is configured to push the second authorization stop to move.

11. The coded key cylinder according to claim 10, wherein, The lock opening device is a telescopic lock opening device, which comprises a lock opening head, a lock opening resetting member, a first surrounding groove, a second surrounding groove, and a surrounding ramp track. The lock opening head is fixedly arranged at the end of the verification shaft and is configured to open the lock. The lock opening resetting member is configured to facilitate the verification shaft to perform a resetting movement. The first surrounding groove, the second surrounding groove, and the surrounding ramp track are arranged at the rear end of the lock cylinder. The first surrounding groove is in communication with the second surrounding groove. The surrounding ramp track is arranged in the second surrounding groove. The linkage head is adapted to move in the first surrounding groove and on the surrounding ramp track.

12. The coded lock cylinder according to claim 11, wherein, The lock opening device is a rotary lock opening device, which comprises an unlocking shaft, an unlocking shaft resetting member, an unlocking shaft telescopic groove, and an inner annular ramp track. The unlocking shaft comprises an unlocking head, a driving head, an annular groove, and a telescopic rod. The unlocking shaft resetting member is telescopically arranged in the unlocking shaft telescopic groove. The unlocking shaft resetting member is configured to facilitate the unlocking shaft to perform a resetting movement. The unlocking shaft is configured to synchronously rotate with the lock cylinder. The unlocking shaft telescopic groove is arranged at the rear end of the lock cylinder. The inner annular ramp track is arranged in the first installation cavity of the lock shell. The driving head is adapted to the inner annular ramp track. The linkage head is adapted to move in the first surrounding groove.

13. The coded lock cylinder according to claim 1, wherein, A cover member is arranged on the lock shell and is configured to fix the components in the second installation cavity.

14. The coded lock cylinder according to claim 1, wherein, A side cover is arranged on the lock shell and is configured to fix the driving member and the driving member resetting member.

15. A lock comprising a lock body and a lock cylinder, characterized in that The lock cylinder comprises the code setting lock cylinder according to any one of claims 1-13.

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