A code setting device and a combination lock
Patent Information
- Application Number
- CN202522831752.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-31
- Publication Date
- 2026-09-29
- Estimated Expiration
- 2035-12-31
AI Technical Summary
[0003]在现有技术中，现有的调码装置包括支撑座、锁梁、密码组件和调码块，锁梁可转动地连接于支撑座，密码组件和调码块连接于支撑座，将锁梁转动180°迫使锁梁的推头面向调码块，按压锁梁，锁梁的推头迫推调码块向右侧移动，调码块向右移动推动密码组件的离合套，使密码组件的离合套与密码组件的密码轮的啮合部相分离，此时，可以拨动密码组件的密码轮重新设定密码，密码重设完成后，将锁梁转动180°使迫锁梁的推头与调码块分离，但是，能够在锁合状态中进行错触而重新设定密码，引发了换码操作，导致现有的调码装置的容易操作错误
本实用新型提供一种调码装置和密码锁，壳体设有容纳空间；壳体设有第一过孔和第二过孔；第二过孔为L形孔；第二过孔设有第一位置和第二位置，该第二位置处于第一位置的右侧；支撑座容纳于容纳空间；锁梁可活动地连接于支撑座，并相对于支撑座锁合或者脱离；此时，锁梁相对于支撑座处于锁合状态或者开锁状态；锁梁的底部设有限位凸台；密码组件包括转动轴、多个密码轮和离合套；转动轴可转动地连接于支撑座；多个密码轮均套设于同一转动轴，多个密码轮相对于转动轴转动，并暴露于第一过孔；离合套连接于转动轴，并连接于对应的密码轮；各个离合套与对应的密码轮对应布置；调码块连接于转动轴，调码块设有第一凸台部和第二凸台部；第一凸台部和第二凸台部分布于调码块的不同位置；第一凸台部暴露于第二过孔，并能够在第二过孔中进行L形轨迹的移动；第二凸台部内置于支撑座，并处于限位凸台的一侧；在第一凸台部处于第一位置时，第二凸台部处于限位凸台的一侧，并被限位凸台所限制，同时，锁梁相对于支撑座处于锁合状态，第二凸台部因限位凸台的限制而停留在第一位置，以防止在上锁的时候进行重新设定密码，从而便于锁梁处于开锁状态下第一凸台部才能调整至第二位置进行重新设定密码，避免了调码装置的错误操作而引发了换码。
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Figure CN224813630U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of combination locks, and in particular to a code-switching device and a combination lock. Background Technology
[0002] With the development of technology, combination locks are widely used in homes, offices and public places. A combination lock is a lock that is opened by a preset password. Users can set complex passwords that are difficult to crack, and the passwords can be changed at any time, increasing the anti-theft capability. The code-changing device is an integral part of the combination lock.
[0003] In the existing technology, the existing code-changing device includes a support base, a lock beam, a combination component, and a code-changing block. The lock beam is rotatably connected to the support base, and the combination component and the code-changing block are connected to the support base. Rotating the lock beam 180° forces the pusher of the lock beam to face the code-changing block. Pressing the lock beam forces the pusher of the lock beam to move the code-changing block to the right. The movement of the code-changing block to the right pushes the clutch sleeve of the combination component, causing the clutch sleeve of the combination component to separate from the engaging part of the combination wheel of the combination component. At this time, the combination wheel of the combination component can be turned to reset the code. After the code is reset, rotating the lock beam 180° forces the pusher of the lock beam to separate from the code-changing block. However, it is possible to accidentally reset the code while the lock is engaged, which triggers a code-changing operation and makes the existing code-changing device prone to operational errors. Utility Model Content
[0004] The purpose of this utility model is to provide a code-changing device and a combination lock. The housing has a receiving space; the housing has a first through hole and a second through hole; the second through hole is an L-shaped hole; the second through hole has a first position and a second position, the second position being to the right of the first position; a support base is received in the receiving space; a lock beam is movably connected to the support base and is locked or disengaged relative to the support base; at this time, the lock beam is in a locked state or an unlocked state relative to the support base; a limiting boss is provided at the bottom of the lock beam; the combination component includes a rotating shaft, multiple combination wheels, and a clutch sleeve; the rotating shaft is rotatably connected to the support base; multiple combination wheels are all sleeved on the same rotating shaft, and the multiple combination wheels rotate relative to the rotating shaft and are exposed in the first through hole; the clutch sleeve is connected to the rotating shaft and connected to the corresponding combination wheel; each clutch sleeve is connected to the corresponding combination wheel. The code wheels are arranged accordingly; the code adjustment block is connected to the rotating shaft, and the code adjustment block has a first boss and a second boss; the first boss and the second boss are distributed at different positions on the code adjustment block; the first boss is exposed to the second through hole and can move in an L-shaped trajectory in the second through hole; the second boss is built into the support seat and is located on one side of the limiting boss; when the first boss is in the first position, the second boss is located on one side of the limiting boss and is restricted by the limiting boss. At the same time, the lock beam is in a locked state relative to the support seat, and the second boss is stopped in the first position due to the restriction of the limiting boss, so as to prevent the code from being reset when locking. This makes it easier for the first boss to be adjusted to the second position to reset the code when the lock beam is in the unlocked state, avoiding the code change caused by the incorrect operation of the code adjustment device.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a code-changing device, comprising: The housing has a receiving space; the housing has a first through hole and a second through hole; the second through hole is an L-shaped hole; the second through hole has a first position and a second position, the second position being located to the right of the first position; The support base is accommodated in the accommodating space; The locking beam is movably connected to the support base and can be locked or disengaged relative to the support base; at this time, the locking beam is in a locked or unlocked state relative to the support base; the bottom of the locking beam is provided with a limiting boss; A cryptographic component includes a rotating shaft, multiple cryptographic wheels, and a clutch sleeve; the rotating shaft is rotatably connected to the support base; the multiple cryptographic wheels are all sleeved on the same rotating shaft, the multiple cryptographic wheels rotate relative to the rotating shaft, and are exposed in the first through hole; the clutch sleeve is connected to the rotating shaft and to the corresponding cryptographic wheel; each clutch sleeve is arranged correspondingly to the corresponding cryptographic wheel. A code-switching block is connected to the rotating shaft. The code-switching block has a first boss and a second boss. The first boss and the second boss are distributed at different positions on the code-switching block. The first boss is exposed to the second through hole and can move in an L-shaped trajectory in the second through hole. The second boss is built into the support base and is located on one side of the limiting boss. When the first boss is in the first position, the second boss is located on one side of the limiting boss and is restricted by the limiting boss. At the same time, the locking beam is in a locked state relative to the support seat, and the second boss remains in the first position due to the restriction of the limiting boss.
[0006] Optionally, the second through hole has a first hole portion and a second hole portion; the second hole portion is perpendicular to the first hole portion and is located on the right side of the first hole portion; The first position is located at the first hole location, and the second position is located at the second hole location; The first protrusion serves as the operating end and reciprocates between the first position and the second position under the user's operation; The second protrusion adjusts its position relative to the limiting protrusion as the first protrusion moves.
[0007] Optionally, the first hole portion and the second hole portion are elongated. The tuning block is movably connected to the rotating shaft and can move and rotate relative to the rotating shaft; The first protrusion moves linearly within the first hole as the tuning block moves. The first boss moves in an arc shape within the second hole as the code block moves.
[0008] Optionally, when the first boss is in the first position, the second boss and the limiting boss are stacked along the axis of the rotation shaft. The limiting boss maintains the corresponding position as the locking beam is locked and restricts the second boss from moving further to the right.
[0009] Optionally, when the first protrusion moves from the first position to the second position, the second protrusion is misaligned with the limiting protrusion and can contact the clutch sleeve to drive the clutch sleeve to move to the right, so that the key of the clutch sleeve disengages from the engagement part of the password wheel, and the multiple password wheels are in the password adjustment state.
[0010] Optionally, the clutch sleeve has a flat surface that is recessed inward from the peripheral sidewall of the clutch sleeve; The adjusting device further includes a swing frame, a first locking tongue, and a second locking tongue. The swing frame is swayably connected to the support base and is in an elastic swinging state relative to the support base. The swing frame is provided with a first support leg and a second support leg. The first and second locking tongues are arranged opposite to each other and are elastically connected; the first and second locking tongues lock the locking beam when locked. When the first leg of the swing frame is inserted into the plane, the second leg disengages from the first and second locking tongues. The first and second locking tongues move closer to each other under elastic action and disengage from the locking beam, so that the locking beam is in the unlocked state.
[0011] Optionally, a first elastic element is provided between the first latch and the second latch, the first elastic element being connected to the first latch and the second latch and applying an elastic push force to the first latch and the second latch; The second leg is offset from the first elastic element; The second support leg is positioned between the first and second latches and supports the first and second latches to maintain their locked state. When the second support leg disengages from the first and second latches, the first and second latches are driven closer to each other by the locking beam and disengage from the locking beam.
[0012] Optionally, the opposite side walls of the first and second latches are provided with positioning grooves, which are used to position the second leg. The second leg disengages from the positioning groove as the first leg is inserted into the plane.
[0013] Optionally, a second elastic element is provided between the end of the locking beam connected to the limiting boss and the support seat. The second elastic element is sleeved on the end of the locking beam connected to the limiting boss and is located on the outer side wall of the second boss portion. The second elastic element is positioned and connected to the support seat and can apply an elastic force to the end of the locking beam connected to the limiting boss.
[0014] To achieve the above objectives, this utility model provides the following technical solution: a combination lock, including the code-switching device described above.
[0015] Compared with the prior art, the beneficial effects of this utility model are: This utility model provides a code-changing device and a combination lock. The housing has a receiving space; the housing has a first through hole and a second through hole; the second through hole is an L-shaped hole; the second through hole has a first position and a second position, the second position being to the right of the first position; a support base is received in the receiving space; a lock beam is movably connected to the support base and can be locked or unlocked relative to the support base; at this time, the lock beam is in a locked state or an unlocked state relative to the support base; a limiting boss is provided at the bottom of the lock beam; the combination assembly includes a rotating shaft, multiple combination wheels, and a clutch sleeve; the rotating shaft is rotatably connected to the support base; multiple combination wheels are all sleeved on the same rotating shaft, and the multiple combination wheels rotate relative to the rotating shaft and are exposed in the first through hole; the clutch sleeve is connected to the rotating shaft and connected to the corresponding combination wheel; each clutch sleeve is paired with the corresponding combination wheel. The following arrangement is required: a code-changing block connected to a rotating shaft, the code-changing block having a first boss and a second boss; the first boss and the second boss are distributed at different positions on the code-changing block; the first boss is exposed to a second through hole and can move in an L-shaped trajectory within the second through hole; the second boss is built into a support base and is located on one side of a limiting boss; when the first boss is in the first position, the second boss is located on one side of the limiting boss and is restricted by the limiting boss, while the lock beam is in a locked state relative to the support base, and the second boss remains in the first position due to the restriction of the limiting boss, to prevent the code from being reset when locking, thus facilitating the first boss to be adjusted to the second position to reset the code when the lock beam is in the unlocked state, avoiding erroneous operation of the code-changing device that could lead to code switching. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.
[0018] Figure 1 A schematic diagram of a combination lock according to an embodiment of this application is shown.
[0019] Figure 2 An exploded view of a combination lock according to one embodiment of this application is shown.
[0020] Figure 3 A schematic diagram of the internal structure of a combination lock according to an embodiment of this application is shown.
[0021] Figure 4A schematic diagram of the housing of a wall-painting assembly for a combination lock according to an embodiment of this application is shown.
[0022] Figure 5 A schematic diagram of the code block of the paint mixing assembly of a combination lock according to an embodiment of this application is shown.
[0023] Figure Labels 100. Code adjustment device; 10. Housing; 11. Receiving space; 12. First through hole; 13. Second through hole; 131. First position; 132. Second position; 133. First hole position; 134. Second hole position; 20. Support base; 30. Locking beam; 31. Limiting boss; 40. Password assembly; 41. Rotating shaft; 42. Password wheel; 43. Clutch sleeve; 43a. Plane; 50. Adjustment block; 51. First boss; 52. Second boss; 60. Swing frame; 61. First leg; 62. Second leg; 70. First locking tongue; 70a. Positioning groove; 71. First elastic element; 80. Second locking tongue; 90. Second elastic element. Detailed Implementation
[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0025] Please refer to the attached document. Figures 1-5 This application provides a code adjustment device 100, which is applied to a combination lock and is used to reset the password.
[0026] Please refer to the attached document. Figures 1-5In this embodiment, the code-changing device 100 includes a housing 10, a support base 20, a lock beam 30, a code assembly 40, and a code-changing block 50. The housing 10 has a receiving space 11; the housing 10 has a first through hole 12 and a second through hole 13; the second through hole 13 is an L-shaped hole; the second through hole 13 has a first position 131 and a second position 132, the second position 132 being located to the right of the first position 131; the support base 20 is received in the receiving space 11; the lock beam 30 is movably connected to the support base 20 and is relatively... The lock beam 30 is locked or unlocked relative to the support base 20; the bottom of the lock beam 30 is provided with a limiting boss 31; the combination assembly 40 includes a rotating shaft 41, multiple combination wheels 42 and a clutch sleeve 43; the rotating shaft 41 is rotatably connected to the support base 20; multiple combination wheels 42 are all sleeved on the same rotating shaft 41, and the multiple combination wheels 42 rotate relative to the rotating shaft 41 and are exposed in the first through hole 12; the clutch sleeve 43 is connected to the rotating shaft 41 and connected to the corresponding... A combination wheel 42; each clutch sleeve 43 is arranged correspondingly to the combination wheel 42; a code-changing block 50 is connected to a rotating shaft 41, and the code-changing block 50 has a first boss 51 and a second boss 52; the first boss 51 and the second boss 52 are distributed at different positions of the code-changing block 50; the first boss 51 is exposed to the second through hole 13 and can move in an L-shaped trajectory in the second through hole 13; the second boss 52 is built into the support seat 20 and is located on one side of the limiting boss 31; the first boss 51 is located in the first When in position 131, the second protrusion 52 is located on one side of the limiting protrusion 31 and is restricted by the limiting protrusion 31. At the same time, the lock beam 30 is in a locked state relative to the support seat 20. The second protrusion 52 is stuck in the first position 131 due to the restriction of the limiting protrusion 31, so as to prevent the password from being reset when locking. This makes it easier for the first protrusion 51 to be adjusted to the second position 132 to reset the password when the lock beam 30 is in the unlocked state, thus avoiding the erroneous operation of the code changing device 100 and causing code change.
[0027] Please refer to the attached document. Figures 1-5 In this embodiment of the application, the housing 10 is provided with a receiving space 11, which serves as the internal space of the housing 10; the housing 10 is provided with a first through hole 12 and a second through hole 13; the second through hole 13 is an L-shaped hole; the second through hole 13 is provided with a first position 131 and a second position 132, and the second position 132 is located to the right of the first position 131.
[0028] The support 20 is accommodated in the accommodating space 11 so that the support 20 can make full use of the accommodating space 11, thereby facilitating the fixation of the support 20 to the inside of the housing 10.
[0029] The locking beam 30 is movably connected to the support base 20 so as to adjust the position of the locking beam 30 relative to the support base 20, and the locking beam 30 is locked or disengaged relative to the support base 20; at this time, the locking beam 30 is in a locked state or an unlocked state relative to the support base 20; the bottom of the locking beam 30 is provided with a limiting boss 31.
[0030] The password assembly 40 includes a rotating shaft 41, multiple password wheels 42, and a clutch sleeve 43. The rotating shaft 41 is rotatably connected to the support base 20 to facilitate adjustment of the rotational position of the rotating shaft 41 relative to the support base 20. The multiple password wheels 42 are all sleeved on the same rotating shaft 41 and rotate relative to the rotating shaft 41 to facilitate adjustment of the rotational position of the multiple password wheels 42 relative to the rotating shaft 41, thereby facilitating the adjustment of the numbers on the multiple password wheels 42. The multiple password wheels 42 are exposed through the first through hole 12 to allow the user to view the numbers on the multiple password wheels 42. The clutch sleeve 43 is connected to the rotating shaft 41 and to the corresponding password wheel 42. Each clutch sleeve 43 is arranged correspondingly to its corresponding password wheel 42.
[0031] The code block 50 is connected to the rotating shaft 41. The code block 50 is provided with a first boss 51 and a second boss 52. The first boss 51 and the second boss 52 are distributed at different positions of the code block 50. The first boss 51 is exposed to the second through hole 13 and can move in an L-shaped trajectory in the second through hole 13 to adjust the different positions of the first boss 51 relative to the second through hole 13. The second boss 52 is built into the support seat 20 and is located on one side of the limiting boss 31.
[0032] When the first boss 51 is in the first position 131, the second boss 52 is on one side of the limiting boss 31 and is restricted by the limiting boss 31. At the same time, the lock beam 30 is in a locked state relative to the support seat 20. The second boss 52 is stuck in the first position 131 due to the restriction of the limiting boss 31, so as to prevent the password from being reset when locking. This makes it easier for the first boss 51 to be adjusted to the second position 132 to reset the password when the lock beam 30 is in the unlocked state, thus avoiding the erroneous operation of the code changing device 100 and causing code change.
[0033] Please refer to the attached document. Figures 1-4In this embodiment, the second through hole 13 is provided with a first hole position portion 133 and a second hole position portion 134; the second hole position portion 134 is perpendicular to the first hole position portion 133 and is located on the right side of the first hole position portion 133; the first position 131 is located in the first hole position portion 133 and the second position 132 is located in the second hole position portion 134; the first boss portion 51 serves as an operating end and reciprocates the first position 131 and the second position 132 under the operation of the user; so that the first boss portion 51 is arranged in a solid space relative to the first position 131 or the second position 132 through the space of the first hole position portion 133 and the second hole position portion 134, and the second boss portion 52 is adjusted in position relative to the limiting boss 31 as the first boss portion 51 moves. When the first protrusion 51 is arranged relative to the first position 131, the second protrusion 52 is restricted by the limiting protrusion 31. At the same time, the locking beam 30 is in a locked state relative to the support seat 20. The second protrusion 52 is kept in the first position 131 due to the restriction of the limiting protrusion 31, so as to prevent the password from being reset when locking, and avoid the erroneous operation of the code changing device 100 that would cause code changing.
[0034] When the lock beam 30 is in the unlocked state relative to the support base 20, the second protrusion 52 is misaligned relative to the limiting protrusion 31 so that the first protrusion 51 can be adjusted from the first position 131 to the second position 132. This allows the first protrusion 51 to be adjusted to the second position 132 to reset the password when the lock beam 30 is in the unlocked state.
[0035] Please refer to the attached document. Figures 1-4 In this embodiment, the first hole portion 133 and the second hole portion 134 are elongated, ensuring the movement distance of the first protrusion portion 51. The adjustment block 50 is movably connected to the rotating shaft 41 and can move and rotate relative to the rotating shaft 41 to adjust the length and rotation position of the adjustment block 50 relative to the rotating shaft 41. The first protrusion portion 51 moves linearly within the first hole portion 133 as the adjustment block 50 moves; the first protrusion portion 51 moves in an arc shape within the second hole portion 134 as the adjustment block 50 moves, so that the first protrusion portion 51 can be adjusted from the first position 131 to the second position 132 by performing two steps of linear and arc-shaped movement under the user's operation, avoiding the first protrusion portion 51 performing only one step of operation and avoiding accidental erroneous operation.
[0036] Please refer to the attached document. Figures 1-5In this embodiment of the application, when the first boss 51 is in the first position 131, the second boss 52 and the limiting boss 31 are stacked along the axis of the rotation shaft 41. The limiting boss 31 maintains the corresponding position as the locking beam 30 is locked, and restricts the second boss 52 from moving further to the right, preventing the code adjustment block 50 from adjusting its position and avoiding the code change caused by the incorrect operation of the code adjustment block 50.
[0037] Please refer to the attached document. Figures 1-5 In this embodiment, when the first protrusion 51 moves from the first position 131 to the second position 132, the second protrusion 52 is misaligned with the limiting protrusion 31 and can contact the clutch sleeve 43, thereby driving the clutch sleeve 43 to move to the right. This causes the key of the clutch sleeve 43 to disengage from the engagement part of the combination wheel 42, and the multiple combination wheels 42 are in the password adjustment state, so that the password can be reset only when the first protrusion 51 is in the second position 132. In addition to satisfying the misalignment of the second protrusion 52 and the limiting protrusion 31, the correct password must also be satisfied.
[0038] Please refer to the attached document. Figures 1-3 In this embodiment, the clutch sleeve 43 has a plane 43a, which is recessed inward from the peripheral sidewall of the clutch sleeve 43; the adjusting device 100 also includes a swing frame 60, a first locking tongue 70 and a second locking tongue 80. The swing frame 60 is swayably connected to the support base 20 and is in an elastic swing state relative to the support base 20, so as to adjust the position of the swing frame 60 relative to the support base 20; the swing frame 60 has a first support leg 61 and a second support leg 62; the first locking tongue 70 and the second locking tongue 80 are arranged opposite to each other and are in an elastic connection state, and the second support leg 62 is inserted between the first locking tongue 70 and the second locking tongue 80; the first locking tongue 70 and the second locking tongue 80 lock the locking beam 30 when in the locked state, so that the first locking tongue 70 and the second locking tongue 80 abut against different positions of the locking beam 30, ensuring the locking stability of the locking beam 30.
[0039] When the first leg 61 of the swing frame 60 is inserted into the plane 43a, the second leg 62 disengages from the first locking tongue 70 and the second locking tongue 80. The first locking tongue 70 and the second locking tongue 80 approach each other under the action of elasticity and disengage from the locking beam 30, so that the locking beam 30 is in the unlocked state, so as to realize the unlocking effect of the code adjustment device 100.
[0040] Please refer to the attached document. Figures 1-3In this embodiment, a first elastic member 71 is provided between the first locking tongue 70 and the second locking tongue 80. The first elastic member 71 is connected to the first locking tongue 70 and the second locking tongue 80 and applies an elastic push force to the first locking tongue 70 and the second locking tongue 80 so that the first locking tongue 70 and the second locking tongue 80 can be elastically connected through the first elastic member 71. The second support leg 62 is staggered with the first elastic member 71 to avoid interference between the second support leg 62 and the first elastic member 71.
[0041] The second leg 62 is positioned between the first latch 70 and the second latch 80, supporting them to maintain their locked state. This allows the second leg 62 to restrict the first latch 70 and the second latch 80 from approaching each other, facilitating their engagement with the lock beam 30 and ensuring its locked state. When the second leg 62 disengages from the first latch 70 and the second latch 80, they approach each other under the action of the first elastic element 71 and disengage from the lock beam 30. This removes the restraining force of the second leg 62, allowing the lock beam 30 to unlock.
[0042] Please refer to the attached document. Figures 1-3 In this embodiment, the opposing side walls of the first latch 70 and the second latch 80 are provided with positioning grooves 70a. The positioning grooves 70a are used to position the second support leg 62 so that the second support leg 62 can be inserted between the first latch 70 and the second latch 80 along the inner side wall of the positioning groove 70a. This allows the inner side wall of the positioning groove 70a to restrict the movement of the second support leg 62, ensuring the positional accuracy of the second support leg 62 relative to the first latch 70 and the second latch 80. The second support leg 62 disengages from the positioning groove 70a as the first support leg 61 is inserted into the plane 43a, so that the first latch 70 and the second latch 80 lose the restraining force of the second support leg 62. This allows the first latch 70 and the second latch 80 to approach each other under the action of the first elastic member 71, so that the first latch 70 and the second latch 80 can disengage from the lock beam 30.
[0043] Please refer to the attached document. Figures 1-3 In this embodiment, a second elastic member 90 is provided between the end of the locking beam 30 connected to the limiting boss 31 and the support seat 20. The second elastic member 90 is sleeved on the end of the locking beam 30 connected to the limiting boss 31 and is located on the outer side wall of the second boss portion 52. The second elastic member 90 is positioned and connected to the support seat 20 and can apply an elastic force to the end of the locking beam 30 connected to the limiting boss 31, so that the locking beam 30 can move elastically upward relative to the support seat 20 under the action of the second elastic member 90, thereby facilitating the automatic opening of the locking beam 30 in the unlocked state.
[0044] In the second application embodiment, a combination lock includes a code-changing device 100. The code-changing device 100 is part of the combination lock. The combination lock is a lock that is opened by a preset code. Users can set complex codes that are difficult to crack, and the codes can be changed at any time, which increases the anti-theft capability.
[0045] Compared with the prior art, the beneficial effects of this utility model are: This utility model provides a code-changing device 100 and a combination lock. The housing 10 has a receiving space 11; the housing 10 has a first through hole 12 and a second through hole 13; the second through hole 13 is an L-shaped hole; the second through hole 13 has a first position 131 and a second position 132, the second position 132 being located to the right of the first position 131; a support base 20 is received in the receiving space 11; a locking beam 30 is movably connected to the support base 20 and can be locked or disengaged relative to the support base 20; at this time, the locking beam 30... The lock beam 30 is in a locked or unlocked state relative to the support base 20; a limiting boss 31 is provided at the bottom of the lock beam 30; the combination assembly 40 includes a rotating shaft 41, multiple combination wheels 42, and a clutch sleeve 43; the rotating shaft 41 is rotatably connected to the support base 20; multiple combination wheels 42 are all sleeved on the same rotating shaft 41, and the multiple combination wheels 42 rotate relative to the rotating shaft 41 and are exposed in the first through hole 12; the clutch sleeve 43 is connected to the rotating shaft 41 and to the corresponding combination wheel 42; each clutch sleeve 43... The code block 50 is arranged corresponding to the corresponding code wheel 42; the code block 50 is connected to the rotating shaft 41, and the code block 50 has a first boss 51 and a second boss 52; the first boss 51 and the second boss 52 are distributed at different positions of the code block 50; the first boss 51 is exposed to the second through hole 13 and can move in an L-shaped trajectory in the second through hole 13; the second boss 52 is built into the support seat 20 and is located on one side of the limiting boss 31; when the first boss 51 is in the first position 131 The second protrusion 52 is located on one side of the limiting protrusion 31 and is restricted by the limiting protrusion 31. At the same time, the lock beam 30 is in a locked state relative to the support seat 20. The second protrusion 52 is stopped at the first position 131 due to the restriction of the limiting protrusion 31 to prevent the password from being reset when locking. This makes it easier for the first protrusion 51 to be adjusted to the second position 132 to reset the password when the lock beam 30 is in the unlocked state, thus avoiding the erroneous operation of the code changing device 100 that would cause code changing.
[0046] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indicator will also change accordingly.
[0047] It should also be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.
[0048] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.
[0049] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A code-changing device, characterized in that, include: The housing has a receiving space; the housing has a first through hole and a second through hole; the second through hole is an L-shaped hole; The second via has a first position and a second position, the second position being located to the right of the first position; The support base is accommodated in the accommodating space; The locking beam is movably connected to the support base and can be locked or disengaged relative to the support base; at this time, the locking beam is in a locked or unlocked state relative to the support base; the bottom of the locking beam is provided with a limiting boss; The cryptographic component includes a rotating shaft, multiple cryptographic wheels, and a clutch sleeve; the rotating shaft is rotatably connected to the support base; the multiple cryptographic wheels are all sleeved on the same rotating shaft, the multiple cryptographic wheels rotate relative to the rotating shaft, and are exposed in the first through hole; The clutch sleeve is connected to the rotating shaft and to the corresponding code wheel; each clutch sleeve is arranged correspondingly to the corresponding code wheel; A code-switching block is connected to the rotating shaft, and the code-switching block is provided with a first boss and a second boss. The first boss and the second boss are distributed at different positions of the code block; the first boss is exposed to the second through hole and can move in an L-shaped trajectory in the second through hole; the second boss is built into the support base and is located on one side of the limiting boss. When the first boss is in the first position, the second boss is located on one side of the limiting boss and is restricted by the limiting boss. At the same time, the locking beam is in a locked state relative to the support seat, and the second boss remains in the first position due to the restriction of the limiting boss.
2. The code-changing device according to claim 1, characterized in that, The second through hole has a first hole position portion and a second hole position portion; the second hole position portion is perpendicular to the first hole position portion and is located on the right side of the first hole position portion; The first position is located at the first hole location, and the second position is located at the second hole location; The first protrusion serves as the operating end and reciprocates between the first position and the second position under the user's operation; The second protrusion adjusts its position relative to the limiting protrusion as the first protrusion moves.
3. The code-changing device according to claim 2, characterized in that, The first hole portion and the second hole portion are elongated strips; The tuning block is movably connected to the rotating shaft and can move and rotate relative to the rotating shaft; The first protrusion moves linearly within the first hole as the tuning block moves. The first boss moves in an arc shape within the second hole as the code block moves.
4. The code-changing device according to claim 3, characterized in that, When the first boss is in the first position, the second boss and the limiting boss are stacked along the axis of the rotation shaft. The limiting boss maintains the corresponding position as the locking beam is locked and restricts the second boss from moving further to the right.
5. The code-changing device according to claim 3, characterized in that, When the first protrusion moves from the first position to the second position, the second protrusion is misaligned with the limiting protrusion and can contact the clutch sleeve, thereby driving the clutch sleeve to move to the right, so that the key of the clutch sleeve disengages from the engagement part of the password wheel, and the multiple password wheels are in the password adjustment state.
6. The code-changing device according to claim 1, characterized in that, The clutch sleeve has a flat surface that is recessed inward from the peripheral sidewall of the clutch sleeve; The adjusting device further includes a swing frame, a first locking tongue, and a second locking tongue. The swing frame is swayably connected to the support base and is in an elastic swinging state relative to the support base. The swing frame is provided with a first support leg and a second support leg. The first and second locking tongues are arranged opposite to each other and are elastically connected; the first and second locking tongues lock the locking beam when locked. When the first leg of the swing frame is inserted into the plane, the second leg disengages from the first and second locking tongues. The first and second locking tongues move closer to each other under elastic action and disengage from the locking beam, so that the locking beam is in the unlocked state.
7. The code-changing device according to claim 6, characterized in that, A first elastic element is provided between the first latch and the second latch, the first elastic element is connected to the first latch and the second latch, and applies an elastic push force to the first latch and the second latch; The second leg is offset from the first elastic element; The second support leg is positioned between the first and second latches and supports the first and second latches to maintain their locked state. When the second support leg disengages from the first and second latches, the first and second latches are driven closer to each other by the locking beam and disengage from the locking beam.
8. The code-changing device according to claim 7, characterized in that, The first and second latches have positioning grooves on their opposite side walls. These positioning grooves are used to position the second leg. The second leg disengages from the positioning groove as the first leg is inserted into the plane.
9. The code-changing device according to claim 1, characterized in that, A second elastic element is provided between the end of the locking beam connected to the limiting boss and the support seat. The second elastic element is sleeved on the end of the locking beam connected to the limiting boss and is located on the outer side wall of the second boss. The second elastic element is positioned and connected to the support seat and can apply an elastic force to the end of the locking beam connected to the limiting boss.
10. A combination lock, characterized in that, Includes the coding device as described in any one of claims 1 to 9.