Coded lock convenient for password change

Abstract

The utility model relates to the technical field of coded locks, and discloses a coded lock convenient for password change, which is characterized in that exposed grooves are uniformly arranged on one side of a shell, a code adjusting sleeve is arranged in the exposed groove at the uppermost end, and a code wheel is arranged in the exposed groove at the lower part; the lower end of the lock hook is located on one side in the shell, a spring is arranged between the lower end of the lock hook and the shell, the lock hook is exposed out of the exposing groove, the code adjusting sleeve is connected with the lock hook through a reset riding wheel and a rotary limiting sleeve, the rotary limiting sleeve is arranged between the reset riding wheel and the lock hook, and the code wheel is connected with the lock hook through a riding wheel. The lower end of the reset riding wheel is attached to the upper end of the uppermost riding wheel, the upper end of the lower riding wheel is attached to the lower end of the upper riding wheel, and the rotary limiting sleeve and the riding wheels are rotationally connected with the lock hook while being in sliding connection with the lock hook. A positioning steel sheet is arranged in the shell, and an elastic sheet is arranged on the positioning steel sheet. The method has the advantage that the password can be reset quickly.

Description

Technical Field

[0001] The utility model relates to the technical field of password locks, in particular to a password lock which is convenient for changing the password. Background Art

[0002] A combination lock is a type of lock that uses a series of numbers or symbols to open. Combination locks can be divided into mechanical combination locks, digital combination locks, etc. The combination of a combination lock is usually just a permutation rather than a real combination. Some combination locks only use a turntable to rotate several discs or cams inside the lock; some combination locks rotate a set of dials with numbers engraved on them to directly drive the mechanism inside the lock.

[0003] When modifying the password of an existing combination lock, the position of the combination disk needs to be adjusted respectively. After the position adjustment is completed, the password can be reset, which is a cumbersome operation. Utility Model Content

[0004] 1. Technical Problems Solved

[0005] The technical problem to be solved by the utility model is that the existing password lock is inconvenient to operate when resetting the password.

[0006] 2. Technical Solution

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a combination lock that is easy to change the password, comprising a housing and a lock hook,

[0008] The upper end of the housing is provided with an anti-pry cover, and one side of the housing is evenly provided with exposure grooves, a code adjustment sleeve is provided in the uppermost exposure groove, and a code wheel is provided in the lower exposure groove;

[0009] The lower end of the lock hook is located at one side of the shell body, a spring is provided between the lower end of the lock hook and the shell body, the lock hook is exposed in the exposure groove, the lock hook passes through the code adjustment sleeve and the password wheel, the code adjustment sleeve is connected to the lock hook through the reset supporting wheel and the rotation limit sleeve, a rotation limit sleeve is provided between the reset supporting wheel and the lock hook, the password wheel is connected to the lock hook through the supporting wheel, the lower end of the reset supporting wheel is fitted with the upper end of the uppermost supporting wheel, the upper end of the supporting wheel below is fitted with the lower end of the upper supporting wheel, and the rotation limit sleeve and the supporting wheel are slidably connected to the lock hook and rotatably connected therewith;

[0010] A positioning steel sheet is arranged in the shell, and a spring sheet is arranged on the positioning steel sheet. The spring sheet is used to position the code adjustment sleeve and the cipher wheel.

[0011] Furthermore, a positioning column is provided in the shell, a positioning groove is provided at the lower end of the lock hook, the lower end of the spring is sleeved on the positioning column, and the upper end of the spring is located in the positioning groove.

[0012] Furthermore, a limiting protrusion is provided on the portion of the locking hook located inside the shell, and limiting grooves are provided on the inner surfaces of the rotation limiting sleeve and the supporting wheel, and the limiting protrusion and the limiting groove are cooperatively connected.

[0013] Furthermore, a through hole is provided on the positioning steel sheet, and the positioning steel sheet is connected to the housing via a positioning screw passing through the through hole.

[0014] Furthermore, the rotation angle limited by the rotation limiting sleeve is 90 degrees.

[0015] 3. Beneficial Effects

[0016] The advantages of the utility model compared with the prior art are:

[0017] Rotating the adjustment sleeve 90° will cause the reset support wheel to be pressed down under the action of the rotating limit sleeve. The reset support wheel will cause the following support wheels to be pressed down at the same time, causing the tug wheel and the password wheel to separate. After separation, the password can be set, and the password reset is more convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a cross-sectional view of the utility model;

[0020] Figure 3 The structure of the lock hook of the utility model is shown in FIG. Figure 1 ;

[0021] Figure 4 The structure of the lock hook of the utility model is shown in FIG. Figure 2 .

[0022] Figure numerals: 1, housing, 2, lock hook, 3, anti-pry cover, 4, exposure slot, 5, code adjustment sleeve, 6, password wheel, 7, spring, 8, reset support wheel, 9, rotation limit sleeve, 10, support wheel, 11, positioning steel sheet, 12, spring sheet, 13, limit protrusion, 14, limit slot. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present utility model are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present utility model.

[0024] It should be noted that all directional indications such as up, down, left, right, front, back... in the embodiments of the utility model are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0025] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0026] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0027] The utility model will now be further described in conjunction with the accompanying drawings.

[0028] Embodiment 1

[0029] Combined with Figure 1-4 The upper end of the shell 1 is provided with an anti-pry drag cover 3, and one side of the shell 1 is evenly provided with exposure grooves 4, and a code adjustment sleeve 5 is provided in the uppermost exposure groove 4, and a password wheel 6 is provided in the lower exposure groove 4; the lower end of the lock hook 2 is located on one side of the shell 1, and a spring 7 is provided between the lower end of the lock hook 2 and the shell 1, and the lock hook 2 is exposed in the exposure groove 4, and the lock hook 2 passes through the code adjustment sleeve 5 and the password wheel 6, and the code adjustment sleeve 5 is connected to the lock hook 2 through a reset support wheel 8 and a rotation limit sleeve 9, and a rotation limit sleeve 9 is provided between the reset support wheel 8 and the lock hook 2, and the password wheel 6 is connected to the lock hook 2 through a support wheel 10, and the The lower end of the reset wheel 8 is fitted with the upper end of the topmost wheel 10, and the upper end of the lower wheel 10 is fitted with the lower end of the upper wheel 10. The rotation limit sleeve 9 and the wheel 10 are slidably connected to the lock hook 2 and are rotationally connected thereto. A positioning steel sheet 11 is provided in the shell 1, and a spring sheet 12 is provided on the positioning steel sheet 11. The spring sheet 12 positions the position of the code adjustment sleeve 5 and the password wheel 6. A limiting protrusion 13 is provided on the part of the lock hook 2 located in the shell 1. A limiting groove 14 is provided on the inner surface of the rotation limit sleeve 9 and the wheel 10, and the limiting protrusion 13 and the limiting groove 14 are matched and connected.

[0030] When the password needs to be reset, first input the password through the password wheel 6. When the password is correct, rotate the code adjustment sleeve 5 90° clockwise. Under the action of the rotating limit sleeve 9, the reset support wheel 8 can be pressed down. The pressing down of the reset support wheel 8 causes the following support wheels 10 to be pressed down at the same time, causing the support wheel 10 and the password wheel 6 to separate. After separation, the password can be set. After the setting is completed, call back the code adjustment sleeve 5, and the pressed support wheel 10 will return to its original position under the action of the spring 7, so that the password is set.

[0031] Embodiment 2

[0032] A positioning column is provided in the housing 1, a positioning groove is provided at the lower end of the lock hook 2, the lower end of the spring 7 is sleeved on the positioning column, and the upper end of the spring 7 is located in the positioning groove.

[0033] On the basis of the first embodiment, the positioning column and the positioning groove cooperate to well fix the position of the spring.

[0034] The utility model and its implementation are described, and such description is not restrictive. The drawings are only one of the implementations of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention of the utility model, they can design a structure and implementation example similar to the technical solution without creativity, which should belong to the protection scope of the utility model.

Claims

1. A combination lock that is easy to change the password, comprising a housing (1) and a lock hook (2), characterized in that: The upper end of the housing (1) is provided with an anti-pry cover (3), one side of the housing (1) is evenly provided with exposure grooves (4), the uppermost exposure groove (4) is provided with a code adjustment sleeve (5), and the lower exposure groove (4) is provided with a code wheel (6); The lower end of the lock hook (2) is located on one side of the housing (1); a spring (7) is provided between the lower end of the lock hook (2) and the housing (1); the lock hook (2) is exposed in the exposure groove (4); the lock hook (2) passes through the code adjustment sleeve (5) and the code wheel (6); the code adjustment sleeve (5) is connected to the lock hook (2) through a reset support wheel (8) and a rotation limit sleeve (9); a rotation limit sleeve (9) is provided between the reset support wheel (8) and the lock hook (2); the code wheel (6) is connected to the lock hook (2) through a support wheel (10); the lower end of the reset support wheel (8) is in contact with the upper end of the uppermost support wheel (10); the upper end of the lower support wheel (10) is in contact with the lower end of the upper support wheel (10); the rotation limit sleeve (9) and the support wheel (10) are slidably connected to the lock hook (2) and are rotationally connected to the lock hook (2); A positioning steel sheet (11) is provided in the housing (1), and a spring sheet (12) is provided on the positioning steel sheet (11). The spring sheet (12) is used to position the code adjustment sleeve (5) and the code wheel (6).

2. A combination lock that is easy to change password according to claim 1, characterized in that: A positioning column is provided in the housing (1), a positioning groove is provided at the lower end of the lock hook (2), the lower end of the spring (7) is sleeved on the positioning column, and the upper end of the spring (7) is located in the positioning groove.

3. A combination lock that is easy to change password according to claim 1, characterized in that: A limiting protrusion (13) is provided on the portion of the lock hook (2) located inside the housing (1), and a limiting groove (14) is provided on the inner surfaces of the rotation limiting sleeve (9) and the supporting wheel (10), and the limiting protrusion (13) and the limiting groove (14) are matched and connected.

4. A combination lock that is easy to change password according to claim 1, characterized in that: The positioning steel sheet (11) is provided with a through hole, and the positioning steel sheet (11) is connected to the housing (1) via a positioning screw passing through the through hole.

5. A combination lock that is easy to change password according to claim 1, characterized in that: The rotation angle limited by the rotation limiting sleeve (9) is 90 degrees.

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