A code lock convenient to adjust

Abstract

The utility model discloses a password lock convenient for code adjustment, which comprises: an adjusting port is arranged on one side of a shell, and the adjusting port allows a finger to pass through; a locking mechanism comprises a rotating sleeve, a locking piece connected to the rotating sleeve, the rotating sleeve is rotationally arranged on the shell, and can drive the locking piece to rotate, the locking piece can be connected with external parts to realize the locking function of the password lock; a locking mechanism is used for locking the rotating position of the rotating sleeve; a password mechanism comprises a shaft sleeve and a password wheel, the shaft sleeve is rotationally arranged in the shell, the password wheel and the shaft sleeve can relatively rotate; a synchronous mechanism comprises a slot and a plug-in part, the plug-in part can be plugged into or separated from the slot, when the plug-in part is plugged into the slot, the password wheel and the shaft sleeve can synchronously rotate; a spring is used for driving the plug-in part to plug into the slot; an adjusting mechanism comprises an adjusting piece, the adjusting piece is arranged in the adjusting port, and can drive the plug-in part to separate from the slot. The utility model can eliminate the dependence on special code adjustment tools, and avoid the inconvenience caused by tool loss or forgetting to take.

Description

Technical Field

[0001] This utility model relates to the technical field of locks, and in particular to a combination lock that is easy to adjust. Background Technology

[0002] Some drawers on the market currently use combination locks. To change the combination, a separate steel needle or similar thin tool is usually inserted into a small adjustment hole on the lock body. Pressing the steel needle actuates the internal adjustment shaft, thus changing the combination.

[0003] However, this method has a drawback: users are very likely to lose or forget the location of the steel needle. When the password needs to be changed, the entire password changing function becomes useless because the dedicated code-changing tool cannot be found, causing great inconvenience and trouble for users. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a combination lock that facilitates code modification, eliminating the reliance on dedicated code-modifying tools, avoiding the inconvenience caused by lost or forgotten tools, and greatly improving the convenience of password modification and user experience.

[0005] A combination lock for easy code adjustment according to an embodiment of the present invention includes: a housing with an adjustment port on one side, the adjustment port allowing fingers to pass through; a locking mechanism including a rotating sleeve and a locking member connected to the rotating sleeve, the rotating sleeve being rotatably disposed on the housing and capable of driving the locking member to rotate, the locking member being capable of connecting to external parts to realize the locking function of the combination lock; a locking mechanism for locking the rotational position of the rotating sleeve; a combination mechanism including a bushing and a combination wheel, the bushing being rotatably disposed inside the housing, the combination wheel and the bushing being rotatable relative to each other; a synchronization mechanism including a slot and a plug-in portion disposed between the combination wheel and the bushing, the plug-in portion being capable of inserting into or disengaging from the slot, the combination wheel and the bushing being rotatable synchronously when the plug-in portion is inserted into the slot; a spring for driving the plug-in portion to insert into the slot; and an adjustment mechanism including an adjustment member disposed within the adjustment port, capable of driving the plug-in portion to disengage from the slot, allowing the combination wheel and the bushing to rotate relative to each other to modify the combination lock's locking combination.

[0006] A combination lock according to an embodiment of the present invention, which is easy to retrieve codes, has at least the following beneficial effects: 1. This utility model, by providing an adjustment port on the outer shell that allows fingers to pass through, and an adjustment component in the adjustment mechanism, allows users to directly operate the adjustment component with their fingers to drive the plug part out of the slot, so that the combination wheel and the bushing can rotate relative to each other, thereby changing the combination. This eliminates the dependence on a dedicated code-changing tool, avoids the inconvenience caused by the loss or forgetting of the tool, and greatly improves the convenience of code modification and user experience. At the same time, the structure has a high degree of integration, does not add extra parts, and maintains the compactness of the combination lock.

[0007] 2. By setting a rotating sleeve and a locking component, the combination lock mechanism can rotate the rotating sleeve to drive the locking component to rotate when the combination lock mechanism is in the unlocked state. The locking component can be connected to the drawer components. Then, after the position of the combination wheel of the combination lock mechanism is scrambled, the locking mechanism can lock the rotation position of the rotating sleeve, thereby realizing the function of locking the drawer.

[0008] According to an embodiment of the present invention, a combination lock for easy code adjustment includes a locking mechanism comprising a locking member slidably disposed inside the outer casing. One end of the locking member has a locking portion, and the other end away from the locking portion has an abutment portion. A rotating sleeve has a first locking groove that engages with the locking portion, and the end of the bushing has a second locking groove that engages with the abutment portion. When the combination wheel is in the unlocked position, the rotating sleeve rotates to disengage the locking portion from the first locking groove, and the abutment portion can be inserted into the second locking groove. When the combination wheel is in the locked position, the combination wheel rotates to disengage the abutment portion from the second locking groove, and the locking portion is inserted into the first locking groove.

[0009] According to an embodiment of the present utility model, a combination lock that is easy to adjust the code has a combination mechanism with a support shaft disposed on the outer shell, a bushing coaxially disposed on the support shaft, a stop portion disposed at one end of the support shaft away from the adjusting member, a spring being fitted onto the support shaft, one end of the spring abutting against the stop portion, and the other end abutting against the bushing.

[0010] According to an embodiment of the present invention, a combination lock that is easy to adjust the code includes an adjustment mechanism that further includes a transmission block. The transmission block can abut against the end of the bushing. The adjustment member is rotatably disposed with the transmission block. The adjustment member is provided with a driving inclined surface. The transmission block is provided with a transmission inclined surface. The driving inclined surface can abut against the transmission inclined surface to drive the bushing to move.

[0011] According to an embodiment of the present invention, a combination lock that is easy to adjust includes an adjusting member having a limiting hole that accommodates the transmission block.

[0012] According to an embodiment of the present invention, a combination lock that is easy to adjust includes an adjusting member with a crank for driving the adjusting member to rotate.

[0013] According to an embodiment of the present invention, a combination lock that is easy to adjust the code also includes a lock cylinder, the lock cylinder being connected to the locking member, the lock cylinder being rotatably disposed inside a rotating sleeve, and under the drive of a key, the lock cylinder being able to drive the locking member to rotate.

[0014] According to an embodiment of the present invention, a combination lock that is easy to adjust the code is provided at the end of the rotating sleeve, and the outer periphery of the knob is provided with a plurality of protrusions.

[0015] According to an embodiment of the present invention, a combination lock that is easy to adjust the code has an extension portion provided on the outer shell, the extension portion being located away from the locking member at the adjustment port.

[0016] According to an embodiment of the present invention, a combination lock that is easy to adjust the code is provided inside the outer shell, and the locking mechanism, the combination mechanism and the adjustment mechanism are installed on the support.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a combination lock that is easy to access and adjust, according to an embodiment of the present invention. Figure 2 for Figure 1 A schematic diagram of the structure of a combination lock that is easy to access; Figure 3 for Figure 1 A schematic diagram of the internal structure of a combination lock that facilitates code retrieval is shown. Figure 4 for Figure 1 A schematic diagram of the internal structure of a combination lock that facilitates code retrieval, shown from another perspective; Figure 5 for Figure 1 A top view of the interior of a combination lock that facilitates code retrieval is shown; Figure 6 for Figure 1 An exploded view of a combination lock that facilitates code retrieval is shown; Figure 7 for Figure 1 An exploded view of another perspective on a combination lock that facilitates code retrieval.

[0020] Reference numerals: 100-outer shell, 110-adjustment port, 120-rotating sleeve, 130-locking element, 140-shaft sleeve, 150-combination wheel, 160-slot, 170-insertion part, 180-spring, 190-adjustment element, 200-locking element, 210-locking part, 220-abutment part, 230-first lock groove, 240-second lock groove, 250-support shaft, 260-stop part, 270-transmission block, 280-drive ramp, 290-transmission ramp, 300-limiting hole, 310-crank, 320-lock cylinder, 330-knob, 340-protrusion, 350-extension, 360-support, 370-connecting sleeve, 380-observation hole. Detailed Implementation

[0021] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0022] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" and "second" are mentioned, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation, connection, and linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] The following description, in conjunction with the accompanying drawings, describes a combination lock that is easy to access and adjust according to an embodiment of the present invention.

[0026] Reference Figure 1 The present invention aims to provide an embodiment of a combination lock that is easy to access.

[0027] This utility model provides a combination lock that is easy to access, referring to... Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The lock includes a housing 100, a locking mechanism, a combination lock mechanism, a synchronization mechanism, a spring 180, and an adjustment mechanism. An adjustment port 110 is provided on one side of the housing 100, allowing fingers to pass through. The locking mechanism includes a rotating sleeve 120 and a locking member 130 connected to the rotating sleeve 120. The rotating sleeve 120 is rotatably mounted on the housing 100 and can drive the locking member 130 to rotate. The locking member 130 can be connected to external parts to achieve the locking function of the combination lock. The locking mechanism is used to lock the rotational position of the rotating sleeve 120. The combination lock mechanism includes a bushing 140 and a combination wheel 150. The bushing 140 is rotatably mounted on the housing 100. Internally, the combination wheel 150 and the bushing 140 can rotate relative to each other; the synchronization mechanism includes a slot 160 and a plug-in part 170 disposed between the combination wheel 150 and the bushing 140. The plug-in part 170 can be inserted into or disengaged from the slot 160. When the plug-in part 170 is inserted into the slot 160, the combination wheel 150 and the bushing 140 can rotate synchronously; the spring 180 is used to drive the plug-in part 170 to be inserted into the slot 160; the adjustment mechanism includes an adjustment member 190, which is disposed in the adjustment port 110 and can drive the plug-in part 170 to disengage from the slot 160, so that the combination wheel 150 and the bushing 140 can rotate relative to each other to modify the locking combination of the combination lock.

[0028] It is understood that by providing an adjustment port 110 on the outer shell 100 that allows fingers to pass through, and an adjustment member 190 in the adjustment mechanism, the user can directly operate the adjustment member 190 with their fingers to drive the plug part 170 out of the slot 160, so that the combination wheel 150 and the bushing 140 can rotate relative to each other, thereby changing the combination. This eliminates the dependence on a special combination adjustment tool, avoids the inconvenience caused by the loss or forgetting of the tool, and greatly improves the convenience of combination modification and user experience. At the same time, the structure has a high degree of integration, does not add extra parts, and maintains the compactness of the combination lock.

[0029] Furthermore, by setting up a rotating sleeve 120 and a locking member 130, when the combination mechanism is in the unlocked state, the rotating sleeve 120 can be rotated to drive the locking member 130 to rotate. The locking member 130 can be connected to the drawer components. Then, after the position of the combination wheel 150 of the combination mechanism is scrambled, the locking mechanism can lock the rotation position of the rotating sleeve 120, thereby realizing the function of locking the drawer.

[0030] It should be noted that the outer casing 100 is provided with a connecting sleeve 370, which passes through the through hole of the drawer and is connected to the nut, thereby installing the combination lock on the drawer.

[0031] The locking element 130 is provided with a bayonet, which allows it to engage with external parts to lock the drawer.

[0032] The combination lock of this utility model can be applied to drawers or doors, and is not specifically limited here.

[0033] In some embodiments of this utility model, reference is made to Figure 3 , Figure 4 and Figure 5 The locking mechanism includes a locking member 200, which is slidably disposed inside the housing 100. One end of the locking member 200 is provided with a locking part 210, and the other end away from the locking part 210 is provided with an abutment part 220. The rotating sleeve 120 is provided with a first locking groove 230 that cooperates with the locking part 210, and the end of the bushing 140 is provided with a second locking groove 240 that cooperates with the abutment part 220. When the combination wheel 150 is in the unlocked position, the rotating sleeve 120 rotates to drive the locking part 210 out of the first locking groove 230, and the abutment part 220 can be inserted into the second locking groove 240. When the combination wheel 150 is in the locked position, the combination wheel 150 rotates to drive the abutment part 220 out of the second locking groove 240, and the locking part 210 is inserted into the first locking groove 230.

[0034] Understandably, by configuring the locking part 210, the abutment part 220, the first lock groove 230, and the second lock groove 240, when the combination wheel 150 is in the unlocked position, the rotating sleeve 120 rotates to release the locking part 210. Simultaneously, the abutment part 220 engages with the second lock groove 240, causing the rotating sleeve 120 to drive the locking member 130 to rotate, ensuring stable locking or unlocking. When the combination wheel 150 is in the locked position, the combination wheel 150 rotates, and the bushing 140 rotates with it. The bushing abuts with the abutment part 220 to drive the abutment part 220 out of the second lock groove 240, and the locking part 210 engages with the first lock groove 230. At this time, the rotating sleeve 120 cannot rotate, preventing unauthorized rotation. This design improves the security and reliability of the combination lock, prevents accidental unlocking, and simplifies the operation process.

[0035] It should be noted that there are two first locking grooves 230, which are distributed at 90° circumference along the rotating sleeve 120.

[0036] In some embodiments of this utility model, reference is made to Figure 5 The password mechanism has a support shaft 250 disposed on the housing 100, a bushing 140 coaxially disposed on the support shaft 250, a stop 260 disposed at the end of the support shaft 250 away from the adjusting member 190, a spring 180 is fitted on the support shaft 250, one end of the spring 180 abuts against the stop 260, and the other end abuts against the bushing 140.

[0037] Understandably, by fitting spring 180 onto support shaft 250, with one end of spring 180 abutting against stop 260 and the other end abutting against bushing 140, a continuous elastic force is provided, ensuring that insertion part 170 always tends to engage with slot 160, maintaining the synchronous rotation of combination wheel 150 and bushing 140. This ensures the stability of the combination lock during normal use, and during code adjustment, spring 180 can be compressed under the driving action of adjusting element 190, disengaging insertion part 170 from slot 160, allowing combination wheel 150 to rotate relative to bushing 140, thus modifying the code.

[0038] In some embodiments of this utility model, reference is made to Figure 6 and Figure 7 The adjustment mechanism also includes a transmission block 270, which can abut against the end of the bushing 140. The adjustment member 190 is rotatably arranged with the transmission block 270. The adjustment member 190 is provided with a driving inclined surface 280, and the transmission block 270 is provided with a driving inclined surface 290. The driving inclined surface 280 can abut against the driving inclined surface 290 to drive the transmission block 270 to move the bushing 140.

[0039] Understandably, the drive ramp 280 on the adjusting member 190 cooperates with the transmission ramp 290 on the transmission block 270 to convert the rotation of the adjusting member 190 into the linear movement of the bushing 140, causing the spring 180 to be in a compressed state, thereby driving the insertion part 170 to disengage from the slot 160. This ramp transmission structure achieves smooth and reliable force transmission, reduces operating force, and allows users to easily complete the code adjustment operation with their fingers. At the same time, the contact between the transmission block 270 and the bushing 140 ensures precise movement and avoids jamming or misoperation.

[0040] In some embodiments of this utility model, the adjusting member 190 is provided with a limiting hole 300, which accommodates the transmission block 270.

[0041] Understandably, the limiting hole 300 accommodates the transmission block 270, restricting its range of motion and preventing it from shifting or falling off during operation. This improves the stability and accuracy of the adjustment mechanism, ensuring that the transmission block 270 always maintains correct contact with the bushing 140, making the password modification operation more reliable.

[0042] In some embodiments of this utility model, the adjusting member 190 is provided with a crank 310, which is used to drive the adjusting member 190 to rotate.

[0043] Understandably, crank 310 provides leverage, making it easier for users to turn the adjustment element 190, especially suitable for situations where the adjustment port 110 is small or finger operation is inconvenient. The crank 310 design enhances the user experience, making password modification easier and faster, without the need for additional tools. Furthermore, crank 310 can be integrated into the adjustment element 190 without adding any extra parts.

[0044] In some embodiments of this utility model, a lock cylinder 320 is also included. The lock cylinder 320 is connected to the locking member 130. The lock cylinder 320 is rotatably disposed inside the rotating sleeve 120. Under the drive of the key, the lock cylinder 320 can drive the locking member 130 to rotate.

[0045] Understandably, by connecting the lock cylinder 320 to the locking element 130, the user can use a key to drive the lock cylinder 320 to rotate the locking element 130, causing the lock cylinder 320 and the rotating sleeve 120 to rotate relative to each other, thus achieving mechanical unlocking. This provides a backup unlocking method, ensuring reliable unlocking even if the password is forgotten or the password mechanism malfunctions, increasing the practicality and flexibility of the combination lock. When the lock cylinder 320 is in the unlocked position, it is locked within the rotating sleeve 120. When the combination wheel 150 is in the unlocked position, the rotating sleeve 120 can drive the lock cylinder 320 to rotate, thereby driving the locking element 130 to rotate. The engagement of the lock cylinder 320 and the rotating sleeve 120 does not affect the password function, achieving multi-mode locking.

[0046] In some embodiments of this utility model, a knob 330 is provided at the end of the rotating sleeve 120, and a plurality of protrusions 340 are provided on the outer periphery of the knob 330.

[0047] Understandably, the protrusion 340 on the knob 330 makes it easier for the user to apply force when turning the knob 330, preventing slippage and improving the operating feel. The protrusion 340 can also serve as a visual or tactile indicator to help the user locate the position of the knob 330, enhancing the user experience. This design is simple and effective, requiring no changes to the overall structure.

[0048] In some embodiments of this utility model, the outer shell 100 is provided with an extension 350, which is located in the adjustment port 110 away from the locking member 130.

[0049] Understandably, the extension 350 is located on the side of the adjustment port 110 away from the locking member 130, which makes the adjustment port 110 less visible to the user and also serves to protect the adjustment port 110. At the same time, the extension 350 may provide additional structural support and can be used as a handle. By pushing or pulling the extension 350, the unlocked drawer can be pushed or pulled, improving the convenience of pushing and pulling the drawer.

[0050] In some embodiments of this utility model, a support 360 is provided inside the outer shell 100, and the support 360 is equipped with a locking mechanism, a password mechanism and an adjustment mechanism.

[0051] Understandably, the Support 360 integrates locking, password, and adjustment mechanisms, improving the integration of internal components and assembly efficiency. Support 360 ensures accurate positioning of each mechanism, reduces relative movement, and enhances overall stability and reliability. This modular design simplifies production and maintenance, and reduces costs.

[0052] In some embodiments of this utility model, the support 360 is provided with an observation hole 380, which allows observation of the numbers on the outer periphery of the combination wheel 150 and the second lock groove 240. When the user can see the second lock groove 240 through the observation hole 380, it means that the combination wheel 150 is in the unlocked state. According to the numbers on the combination wheel 150 pointed to by the second lock groove 240, the corresponding unlocking code can be found.

[0053] It should be noted that, in order to help users retrieve their passwords, a reference table can be created, listing the numbers that the second lock slot 240 points to the combination wheel 150, and the corresponding unlocking password numbers.

[0054] In some embodiments of this utility model, the support 360 is provided with numerical markings of "0" and "1". The numerical markings of "0" and "1" are arranged in the rotation direction of the adjusting member. When the adjusting member is rotated to the "1" position, the password can be modified. When the adjusting member is rotated to the "0" position, it indicates a reset and the state of modifying the password is released.

[0055] Therefore, the password modification process of the combination lock in this embodiment is as follows: Rotate the combination wheel 150 to the unlock position, and the user inserts their finger into the adjustment port 110. By turning the adjustment component 190, the driving inclined surface 280 on the adjustment component 190 engages with the transmission inclined surface 290 on the transmission block 270, allowing the transmission block 270 to move linearly. The transmission block 270 drives the linear movement of the bushing 140, compressing the spring 180, thereby driving the insertion part 170 to disengage from the slot 160, allowing the combination wheel 150 and the bushing 140 to rotate relative to each other to modify the combination. After the user releases the hand, the spring 180 drives the bushing 140 to move, the adjusting part 190 returns to its original position, so that the plug part 170 plugs into the slot 160, and the password wheel 150 is fixed in the bushing 140, thus completing the password change made by the user.

[0056] In the description of this specification, references to terms such as "an embodiment," "some embodiments," "illustrative 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 present invention. In this specification, 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.

[0057] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A combination lock that is easy to access, characterized in that, include: The outer casing (100) has an adjustment port (110) on one side, which allows fingers to pass through; The locking mechanism includes a rotating sleeve (120) and a locking member (130) connected to the rotating sleeve (120). The rotating sleeve (120) is rotatably disposed on the outer shell (100) and can drive the locking member (130) to rotate. The locking member (130) can be connected to external parts to realize the locking function of the combination lock. A locking mechanism is provided for locking the rotational position of the rotating sleeve (120); The cryptographic mechanism includes a bushing (140) and a cryptographic wheel (150). The bushing (140) is rotatably disposed inside the housing (100), and the cryptographic wheel (150) and the bushing (140) can rotate relative to each other. The synchronization mechanism includes a slot (160) and a plug-in part (170) disposed between the cipher wheel (150) and the bushing (140). The plug-in part (170) can be inserted into or disengaged from the slot (160). When the plug-in part (170) is inserted into the slot (160), the cipher wheel (150) and the bushing (140) can rotate synchronously. A spring (180) is used to drive the plug (170) to plug into the slot (160). The adjustment mechanism includes an adjustment member (190) disposed in the adjustment port (110) and capable of driving the plug part (170) to disengage from the slot (160), so that the combination wheel (150) and the bushing (140) can rotate relative to each other to modify the locking combination of the combination lock.

2. The combination lock for easy code retrieval according to claim 1, characterized in that, The locking mechanism includes a locking member (200) which is slidably disposed inside the housing (100). One end of the locking member (200) is provided with a locking portion (210), and the other end away from the locking portion (210) is provided with an abutment portion (220). The rotating sleeve (120) is provided with a first locking groove (230) that mates with the locking portion (210), and the end of the bushing (140) is provided with a second locking groove (220) that mates with the abutment portion (220). 40) When the password wheel (150) is in the unlocked position, the rotating sleeve (120) rotates to drive the locking part (210) to disengage from the first lock groove (230), and the abutment part (220) can be inserted into the second lock groove (240). When the password wheel (150) is in the locked position, the password wheel (150) rotates to drive the abutment part (220) to disengage from the second lock groove (240), and the locking part (210) is inserted into the first lock groove (230).

3. A combination lock for easy code retrieval according to claim 1, characterized in that, The cryptographic mechanism has a support shaft (250) disposed on the housing (100), and a bushing (140) is coaxially disposed on the support shaft (250). A stop (260) is provided at one end of the support shaft (250) away from the adjusting member (190). A spring (180) is fitted on the support shaft (250), with one end of the spring (180) abutting against the stop (260) and the other end abutting against the bushing (140).

4. A combination lock for easy code retrieval according to claim 1, characterized in that, The adjustment mechanism further includes a transmission block (270), which can abut against the end of the bushing (140). The adjustment member (190) is rotatably disposed with the transmission block (270). The adjustment member (190) is provided with a driving inclined surface (280), and the transmission block (270) is provided with a transmission inclined surface (290). The driving inclined surface (280) can abut against the transmission inclined surface (290) for transmission, so that the transmission block (270) drives the bushing (140) to move.

5. A combination lock for easy code retrieval according to claim 4, characterized in that, The adjusting member (190) is provided with a limiting hole (300), which accommodates the transmission block (270).

6. A combination lock for easy code retrieval according to claim 4, characterized in that, The adjusting member (190) is provided with a crank (310) for driving the adjusting member (190) to rotate.

7. A combination lock for easy code retrieval according to claim 1, characterized in that, It also includes a lock cylinder (320), which is connected to the locking member (130). The lock cylinder (320) is rotatably disposed inside the rotating sleeve (120). Under the drive of the key, the lock cylinder (320) can drive the locking member (130) to rotate.

8. A combination lock for easy code retrieval according to claim 7, characterized in that, The end of the rotating sleeve (120) is provided with a knob (330), and the outer periphery of the knob (330) is provided with a plurality of protrusions (340).

9. A combination lock for easy code retrieval according to claim 1, characterized in that, The housing (100) is provided with an extension (350) located away from the locking member (130) in the adjustment port (110).

10. A combination lock for easy code retrieval according to claim 1, characterized in that, The housing (100) is provided with a support (360) inside, and the support (360) is used to install the locking mechanism, the password mechanism and the adjustment mechanism.

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