Safety type password wheel

Abstract

The utility model belongs to the technical field of password wheels, and particularly relates to a safety password wheel which comprises a middle shaft, a password wheel assembly is assembled on the middle shaft and provided with an unlocking limiting groove and an annular groove, the password wheel assembly is composed of a hub assembly and a number wheel assembly, and a hub of the hub assembly is matched with the middle shaft through a limiting block. The inner number wheel and the outer number wheel are designed in a staggered mode, the number of the inner number wheel serves as an unlocking password, the number of the outer number wheel cannot be directly unlocked, the password is effectively prevented from being snooped, and the number marks can be prevented from being snooped. A user can adjust the dislocation relation between the internal number wheel and the external number wheel, the password complexity is increased, the cracking risk is reduced, the requirement for password diversity in different scenes is met, the use flexibility is improved, and the password wheel has important innovation value and application prospects in the technical field of password wheels.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of password wheels, and particularly relates to a safe password wheel. BACKGROUND

[0002] Password wheels are commonly used in luggage locks, safes and the like, and are composed of a plurality of wheel discs with numbers or characters, and are used to adjust the numbers or characters to a preset combination to achieve unlocking by rotating the wheel discs, and are a kind of widely used and relatively simple password input device.

[0003] The existing password wheel is usually composed of a rotating wheel, a shaft, a lever, a lock core, a spring and a tenon, and its working principle is as follows: each rotating wheel has numbers or characters, and the rotating wheel is driven to rotate by the lever, and when the numbers or characters on the rotating wheel match the preset password, the tenon on the lock core enters a specific groove of the rotating wheel under the action of the spring, so that the lock core can rotate to achieve unlocking, and if the password is incorrect and the tenon cannot enter the correct position, the lock cannot be opened.

[0004] The existing password wheel has the following shortcomings: the existing password wheel is usually a single number wheel structure, and the password combination only depends on the number arrangement of the single number wheel, and the combination mode is extremely limited, which makes the password complexity low, and the correct password can be easily obtained by others through simple trial and error or brute force cracking means, and the security performance is worrying, and since the numbers are directly exposed and the combination mode is simple, after observing the user's operation of rotating the password wheel and the displayed numbers, others can easily guess the unlocking password, which greatly threatens the confidentiality of the password, and in some scenes with high requirements for privacy and security, such as safes and important file boxes, there are serious safety hazards; therefore, a safe password wheel is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the shortcomings of the existing password wheel, a safe password wheel is provided.

[0006] The utility model discloses a safe password wheel, including the axle, the axle is equipped with the password wheel subassembly on, the axle is opened in the unlocking limit slot for the password wheel subassembly unlocking, the axle is opened in the ring groove for the password wheel subassembly around the axle axial rotation, the password wheel subassembly includes the hub subassembly and number wheel subassembly, the hub subassembly includes the hub, the inner diameter wall of the hub is fixedly provided with the limit block for with unlocking limit slot and ring groove cooperation, the hub is provided with the butt joint boss, the number wheel subassembly includes the inner number wheel and the outer number wheel with the inner number wheel rotation setting through rotating part, the both ends of the inner number wheel protrude the both ends of the outer number wheel.

[0007] Preferably, the inner wall of the inner number wheel is provided with a limit groove matched with the butt joint boss.

[0008] Preferably, a limiting assembly for limiting the two is arranged between the inner number wheel and the outer number wheel, the limiting assembly comprises a mounting groove opened on the inner diameter of the outer number wheel, a lock block is slidingly assembled in the mounting groove, a spring is terminated between the lock block and the mounting groove, one end of the lock block extends out of the mounting groove, a plurality of lock grooves matched with the lock block are equidistantly opened on the circumferential side of the inner number wheel in annular array, and the edge contact surfaces of the lock block and the lock grooves are both arc chamfers.

[0009] Preferably, a first number groove and a second number groove are respectively arranged on the circumferential sides of the inner number wheel and the outer number wheel, and the first number groove is smaller than the second number groove.

[0010] Preferably, a plurality of positioning grooves are annularly and equidistantly arranged on the circumferential side of the inner number wheel.

[0011] Preferably, number marks are formed in the first number groove and the second number groove by secondary injection.

[0012] Preferably, anti-skid convex points are arranged on the circumferential side of the outer number wheel.

[0013] The safe type password wheel has the advantages that:

[0014] The inner number wheel and the outer number wheel can be arranged in a misaligned relationship, the number on the inner number wheel is a correct unlocking number, and the number displayed by the outer number wheel is not an unlocking number, which constructs an effective anti-spy mechanism, even if the operation and number combination of the outer number wheel are observed by others, the real unlocking password cannot be known without knowing the misalignment rule, the security of the password is greatly improved, the misalignment relationship of the inner and outer number wheels is changed, a large number of different password combinations are created, the complexity of the password is significantly increased, the risk of password cracking is effectively reduced, the single fixed combination mode of the traditional password wheel is broken, the user can adjust the misalignment relationship of the inner and outer number wheels at any time according to the own demand, the demand for password diversity in different scenes is met, and higher use flexibility is provided for the user. BRIEF DESCRIPTION OF DRAWINGS

[0015] The drawings described herein are used to provide further understanding of the present application, constitute a part of the present application, and the schematic embodiments and the descriptions thereof are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0016] Figure 1 is a whole perspective view;

[0017] Figure 2 is a first sectional view of the sleeve and the assembly column;

[0018] Figure 3is a second sectional view of the sleeve, the assembly column;

[0019] Figure 4 is Figure 3 is an enlarged view of the structure at A in figure 1;

[0020] Legend:

[0021] 1, central axis; 2, password wheel assembly; 3, unlocking limiting groove; 4, ring groove; 5, wheel hub assembly; 501, wheel hub; 502, limiting block; 503, butt joint protrusion; 6, number wheel assembly; 601, inner number wheel; 6011, limiting groove; 602, outer number wheel; 7, limiting assembly; 701, mounting groove; 702, lock block; 703, spring; 704, lock groove; 8, first number groove; 9, second number groove; 10, positioning groove; 11, anti-skid protrusion. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] Specific embodiments are given below.

[0024] Please refer to Figures 1-4The utility model discloses a safe type password wheel, including the axle 1, the axle 1 is assembled with password wheel subassembly 2, the axle 1 is set up with the unlocking limit slot 3 for password wheel subassembly 2 unlocking, the axle 1 is set up with the ring groove 4 for password wheel subassembly 2 around axle 1 axial rotation, password wheel subassembly 2 includes hub subassembly 5 and number wheel subassembly 6, the hub subassembly 5 includes hub 501, the inner diameter wall of hub 501 is fixed with the limit block 502 for with unlocking limit slot 3 and ring groove 4 cooperation, the hub 501 is provided with the docking lug 503, number wheel subassembly 6 includes the inner number wheel 601 and with the outer number wheel 602 of inner number wheel 601 through rotating part rotation setting, the both ends of inner number wheel 601 protrude the both ends of outer number wheel 602, the inner wall of inner number wheel 601 is set up with the limit slot 6011 of docking lug 503 cooperation, the limit assembly 7 for both limit is set up between inner number wheel 601 and outer number wheel 602, the limit assembly 7 includes the installation groove 701 of setting up on the inner diameter of outer number wheel 602, the lock block 702 of sliding assembly is in the installation groove 701, the lock block 702 and installation groove 701 between end is provided with spring 703, the lock block 702 one end extends installation groove 701, the circumferential side of inner number wheel 601 is set up with a plurality of lock slot 704 of cooperation with lock block 702 in ring array equidistance, the edge contact surface of lock block 702 and lock slot 704 is arc chamfer, the circumferential side of inner number wheel 601 is set up with a plurality of positioning groove 10 in ring array, the circumferential side of inner number wheel 601 and outer number wheel 602 is provided with first number slot 8 and second number slot 9 respectively, first number slot 8 is smaller than second number slot 9, when working, under normal use state, lock block 702 is embedded in the lock slot 704 of inner number wheel 601 under the elastic force of spring 703, makes outer number wheel 602 and inner number wheel 601 linkage, when user rotates outer number wheel 602, inner number wheel 601 follows synchronous rotation around axle 1, when the user adjusts the password, needs to change the misregistration between inner number wheel 601 and outer number wheel 602, improves security, the user needs to use the tool such as small stick, inserts small stick into the positioning groove 10 of the appropriate position of inner number wheel 601 circumferential side, uses the tool to form mechanical limit to inner number wheel 601, makes it unable to rotate, when the user rotates outer number wheel 602, because inner number wheel 601 is limited, along with outer number wheel 602 rotation, the external force that the user exerts gradually increases, when the external force overcomes the elastic force of spring 703, lock block 702 is inboard retraction along installation groove 701, from the lock slot 704 of inner number wheel 601, because the edge of lock block 702 and lock slot 704 is arc chamfer, in the process of both disengaging, arc chamfer plays the guiding role, reduces the resistance when disengaging, makes operation more smooth, the distribution of a plurality of lock slots 704 on inner number wheel 601, and every lock slot 704 corresponds with the specific number on inner number wheel 601,The user continuously rotates the outer number wheel 602 until the inner number wheel 601 and the outer number wheel 602 are adjusted to the desired misalignment relationship, at which time the lock block 702 falls into the lock slot 704 in the corresponding position under the action of the spring 703, the inner number wheel 601 and the outer number wheel 602 are fixed again, and the password adjustment is completed. The advantage of this setting is that the two ends of the inner number wheel 601 protrude from the two ends of the outer number wheel 602, and the first number slot 8 is smaller than the second number slot 9. This design makes the inner number wheel 601 and the outer number wheel 602 have obvious distinction in appearance and function. The larger outer number wheel 602 is convenient for the user to directly operate, and the second number slot 9 on its surface can clearly display the larger size number, which is convenient for the user to identify and rotate. The inner number wheel 601 is relatively concealed, and its smaller first number slot 8 and protruding structure make it difficult for others to directly observe the number on the inner number wheel 601. More importantly, the number on the inner number wheel 601 is the correct unlocking number. The number displayed on the outer number wheel 602 is not the correct unlocking number due to the specific misalignment relationship with the inner number wheel 601. This design builds an effective anti-spy mechanism. Even if others observe the operation process of the user rotating the outer number wheel 602 and see the number combination on the outer number wheel 602, they cannot know the number combination on the inner number wheel 601 which is actually used for unlocking without understanding the misalignment rule of the inner and outer number wheels. Therefore, the security and safety of the password are greatly improved. The relative position between the two is adjusted through the limiting assembly 7. This design breaks the traditional single fixed combination mode of the password wheel. The user can change the misalignment relationship between the inner and outer number wheels at any time according to his own needs, creating a large number of different password combinations. This not only increases the security of the password, but also provides higher use flexibility for the user, meeting the demand for password diversity in different scenarios.

[0025] Further, the first number slot 8 and the second number slot 9 are both provided with number marks through secondary injection; in operation, during the manufacturing process of the password wheel, the inner number wheel 601 and the outer number wheel 602 are first formed, at this time, the first number slot 8 and the second number slot 9 are provided at the corresponding positions of the circumferential side, then the formed number wheel is placed in the secondary injection mold, and the specific number mark material is injected into the first number slot 8 and the second number slot 9 through the injection equipment, during the injection process, the high temperature and high pressure make the number mark material fully fill the number slot and tightly combine with the surface of the number wheel, the number mark material forms clear and firm number marks in the number slot, which are used to indicate the password numbers, through the secondary injection process, the number mark material is integrally formed with the number wheel, so that the bonding strength between the number mark and the number wheel is much higher than that of the traditional pasting or printing method, this kind of tight combination can effectively prevent the number mark from being worn, faded or fallen off due to friction, collision, moisture and other environmental factors in the long-term use process, so as to ensure that the number mark is always clear and identifiable, which provides reliable guarantee for the user to accurately set and identify the password, even if the password wheel is used for a long time, the number mark can still maintain good readability, which greatly improves the use stability and reliability of the password wheel, and the appearance is more flat and smooth, so that the overall appearance of the password wheel is more beautiful and delicate, which improves the overall quality image of the product.

[0026] Further, the circumferential side of the outer number wheel 602 is provided with anti-skid convex points 11; in operation, when the user needs to rotate the outer number wheel 602, the fingers contact the anti-skid convex points 11 on the circumferential side of the outer number wheel 602, the existence of the anti-skid convex points 11 increases the roughness of the surface of the outer number wheel 602, so that the contact friction between the fingers and the outer number wheel 602 is increased, which can effectively prevent the fingers from slipping on the surface of the number wheel, so as to ensure that the user can more stably and accurately control the rotation angle and direction of the outer number wheel 602, and realize accurate password setting operation.

[0027] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0028] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A security wheel comprising: The utility model relates to a password lock, including central shaft (1), password wheel assembly (2) is equipped on the central shaft (1), the unlocking limiting slot (3) for password wheel assembly (2) unlocking is seted up on the central shaft (1), the ring groove (4) for password wheel assembly (2) axial rotation around central shaft (1) is seted up on the central shaft (1), password wheel assembly (2) includes wheel hub assembly (5) and number wheel assembly (6), wheel hub assembly (5) includes wheel hub (501), the inner diameter wall of wheel hub (501) is fixedly provided with the limiting block (502) for with unlocking limiting slot (3) and ring groove (4) cooperation, the docking boss (503) is provided on wheel hub (501), number wheel assembly (6) includes inner number wheel (601) and outer number wheel (602) and is seted up with the rotation of rotating part between inner number wheel (601), the both ends of inner number wheel (601) protrude the both ends of outer number wheel (602).

2. A security wheel as claimed in claim 1, wherein: The inner wall of the inner number wheel (601) is provided with a limiting groove (6011) matched with the docking boss (503).

3. The security wheel of claim 1 wherein: A limiting assembly (7) is arranged between the inner number wheel (601) and the outer number wheel (602) for limiting them, the limiting assembly (7) includes an installation groove (701) formed on the inner diameter of the outer number wheel (602), a lock block (702) is slidably assembled in the installation groove (701), a spring (703) is arranged between the lock block (702) and the installation groove (701), one end of the lock block (702) extends out of the installation groove (701), a plurality of lock grooves (704) matched with the lock block (702) are equidistantly formed in the circumferential side of the inner number wheel (601) in an annular array, and the edge contact surfaces of the lock block (702) and the lock groove (704) are both arc chamfers.

4. The security wheel of claim 1 wherein: The circumferential sides of the inner number wheel (601) and the outer number wheel (602) are respectively provided with a first number groove (8) and a second number groove (9), and the first number groove (8) is smaller than the second number groove (9).

5. The security wheel of claim 1 wherein: The circumferential side of the inner number wheel (601) is provided with a plurality of positioning grooves (10) in an annular array.

6. A security wheel according to claim 4, wherein: The first number groove (8) and the second number groove (9) are both provided with number marks by secondary injection molding.

7. The security wheel of claim 1 wherein: The circumferential side of the outer number wheel (602) is provided with anti-skid convex points (11).

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