Coded wheel elastic positioning structure of hook mechanical coded lock

Abstract

The utility model provides a code wheel elastic positioning structure of a hook mechanical coded lock, which comprises a lock shell, a rotatable code wheel is arranged in the lock shell, and a positioning groove is arranged on the code wheel. The coded lock further comprises a fixed plate piece and an elastic piece, the fixed plate piece is fixedly connected with the lock shell, one end of the elastic piece is connected with the fixed plate piece, the other end of the elastic piece is provided with a bent part, and a positioning part protruding towards the coded wheel is formed at the connecting position of the bent part and the elastic piece. And the positioning part is matched with the positioning groove to position the password. The positioning groove is formed in the password wheel and is matched with the positioning part formed by the fixing plate sheet and the elastic sheet, so that the password wheel can be accurately and stably positioned, the password input accuracy is greatly improved, and misoperation caused by inaccurate positioning of the password wheel is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of password locks, and particularly relates to an elastic positioning structure of a password wheel of a hook mechanical password lock. Background Art

[0002] The elastic positioning structure of the password wheel of a hook mechanical password lock usually consists of the following main parts:

[0003] Lock body: Provides overall support and protection, usually made of strong metal materials to ensure safety and durability. Hook: Is the key component of the lock, used to connect and fix to the object to be locked. Its shape and size are designed according to specific application scenarios. Password wheel group: Contains multiple rotatable password wheels, and each wheel is marked with numbers, letters or other symbols. The password wheels are interconnected through a specific mechanical structure, and only when all the password wheels are in the correct position can the lock be opened. Internal mechanical transmission mechanism: When the correct password is entered, the transmission mechanism will allow the release or locking of the hook. Usually includes components such as springs, levers, sliders, etc., which work together to achieve the opening and closing functions of the lock. Protective housing: Used to protect the internal structure from external interference and damage, and also increases the aesthetics of the lock.

[0004] Taking a common three-digit password lock as an example, each password wheel has numbers from 0 to 9. Only when the three password wheels are rotated to the correct number combination can the internal mechanical transmission mechanism release the restriction on the hook, enabling the hook to move and thus unlocking the lock.

[0005] For the existing elastic positioning structure of the password wheel of a hook mechanical password lock, the password wheel may lack an accurate positioning structure during rotation, which easily affects the accuracy and stability of password input. In actual operation, due to the uncertainty of the rotation of the password wheel, users may have difficulty accurately setting the password to the predetermined position, thus increasing the difficulty of unlocking and the probability of errors.

[0006] At the same time, due to the lack of an effective positioning structure, when the password wheel is subjected to external force collision or vibration, it is prone to accidental rotation, thus changing the preset password and increasing the risk of accidental unlocking or abnormal opening of the password lock. Content of the Utility Model

[0007] Aiming at the problems pointed out in the background art, the utility model proposes an elastic positioning structure of a password wheel of a hook mechanical password lock to solve the above technical problems.

[0008] The technical solution of the utility model is realized as follows:

[0009] An elastic positioning structure for the password wheel of a hook mechanical password lock, including a lock housing, a rotatable password wheel is provided inside the lock housing, and positioning grooves are provided on the password wheel; it also includes a fixing plate piece and a spring piece. The fixing plate piece is fixedly connected to the lock housing. One end of the spring piece is connected to the fixing plate piece, and the other end of the spring piece is provided with a bending part. The connection part between the bending part and the spring piece forms a positioning part protruding towards the password wheel. The positioning part cooperates with the positioning groove to form the positioning of the password.

[0010] The present utility model is further arranged such that a plurality of positioning grooves are provided, and the plurality of positioning grooves are equidistantly spaced at intervals in the circumferential direction of the password wheel.

[0011] The present utility model is further arranged such that three password wheels are provided, and correspondingly three spring pieces are also provided.

[0012] The present utility model is further arranged such that the spring piece and the fixing plate piece are integrally provided.

[0013] The present utility model is further arranged such that slot holes corresponding to the spring pieces are provided on the fixing plate piece.

[0014] The present utility model is further arranged such that the shape of the positioning part matches the shape of the positioning groove.

[0015] The present utility model is further arranged such that the spring piece and the fixing plate piece are made of metal materials.

[0016] The present utility model is further arranged such that a rectangular opening is provided on the surface of the lock housing, and the password wheel is partially exposed through this opening.

[0017] The present utility model is further arranged such that the fixing plate piece is located on the same side of the three password wheels and is at an equal distance from each password wheel to ensure uniform positioning effect for each password wheel.

[0018] The present utility model is further arranged such that an indication mark is provided on the password wheel for prompting the user to input the correct password.

[0019] Adopting the above technical solutions, the beneficial effects of the present utility model are as follows:

[0020] 1. By providing positioning grooves on the password wheel and cooperating with the positioning part formed by the fixing plate piece and the spring piece, accurate and stable positioning of the password wheel can be achieved, greatly improving the accuracy of password input and reducing misoperations caused by inaccurate positioning of the password wheel.

[0021] 2. The components of this technical solution are relatively few, and the structure is simple and clear. The cooperation mode of the fixed plate, the elastic piece and the password wheel is not complex, which reduces the manufacturing and installation difficulties, helps to improve production efficiency and reduce costs.

[0022] 3. The cooperation mode between the elastic piece and the positioning groove has good reliability and is not prone to failures. The elasticity of the elastic piece can ensure a long-term effective positioning function, reducing the positioning failure problems caused by component aging or wear.

[0023] 4. This elastic positioning structure of the password wheel is applicable to various hook mechanical password locks with different sizes and specifications, and can be adjusted and optimized according to actual needs, with strong versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0025] Figure 1 It is a schematic structural diagram of the password lock of the present invention.

[0026] Figure 2 It is a schematic structural diagram of the password wheel, the fixed plate and the elastic piece of the present invention.

[0027] Figure 3 It is a schematic structural diagram of the fixed plate and the elastic piece of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0029] The following reference Figures 1-3 will describe the present invention:

[0030] An elastic positioning structure for the password wheel of a hook mechanical password lock, including a lock housing 1, and a rotatable password wheel 2 is provided inside the lock housing 1. The lock housing 1 serves as the external framework of the entire structure, not only providing a stable installation foundation for internal components, but also playing a role in protection and safeguarding. A rectangular opening 9 is provided on the surface of the lock housing 1, and the password wheel 2 is partially exposed through this rectangular opening 9. This facilitates user operation. The design of the rectangular opening 9 can not only ensure that there is enough exposed part of the password wheel 2 for user operation, but also limit its excessive exposure, reducing the direct interference and influence of external factors on the password wheel 2.

[0031] The password wheel 2 is provided with positioning grooves 3, and there are multiple positioning grooves 3. The multiple positioning grooves 3 are equidistantly spaced at intervals in the circumferential direction of the password wheel 2. The multiple equidistantly spaced positioning grooves 3 provided on the password wheel 2 are the key to achieving precise positioning. The equidistant spacing distribution method ensures that in the process of password input, each position can be accurately positioned, improving the diversity and accuracy of password combinations.

[0032] It also includes a fixing plate 4 and a spring piece 5. The fixing plate 4 is fixedly connected to the lock housing 1. One end of the spring piece 5 is connected to the fixing plate 4, and the other end of the spring piece 5 is provided with a bent portion 6. The connection part between the bent portion 6 and the spring piece 5 forms a positioning portion 7 protruding towards the password wheel 2. The positioning portion 7 cooperates with the positioning groove 3 to form the positioning of the password wheel 2. The fixing plate 4 is firmly fixedly connected to the lock housing 1, providing a stable support for the spring piece 5. The spring piece 5 has good elasticity and flexibility. One end of it is connected to the fixing plate 4, and the protruding positioning portion 7 formed by the bent portion 6 at the other end can closely cooperate with the positioning groove 3 on the password wheel 2. The shape of the positioning portion 7 matches the shape of the positioning groove 3. This precise matching design makes the positioning more accurate and reliable. When the password wheel 2 rotates to the correct position, the positioning portion 7 can just be inserted into the positioning groove 3, giving the user a clear tactile feedback, and at the same time ensuring that the password wheel 2 remains stable at this position, preventing the password wheel from rotating due to slight shaking or accidental touch.

[0033] When the password wheel 2 is in a static state, the elastic force of the spring piece 5 continuously acts on the password wheel 2, forming a kind of resistance, effectively preventing the password wheel 2 from rotating unnecessarily due to slight vibrations, collisions or other accidental factors from the outside. Suppose the password lock is installed in an environment that is often vibrated, such as the trunk of a vehicle. Without the elastic force exerted by the spring piece 5, the password wheel 2 may be displaced during vibration, resulting in incorrect passwords. However, due to the presence of the spring piece 5, even if affected by external vibrations, the password wheel 2 can remain in the established position, ensuring the accuracy of the password.

[0034] At the same time, the elastic force of the elastic piece 5 is also just right. It will not be too large to cause difficulties in rotating the password wheel 2 and affect the user's normal password input, nor will it be too small to be unable to effectively prevent accidental rotation. When the user rotates the password wheel 2 to input the password, the elastic force of the elastic piece 5 will change accordingly with the rotation of the password wheel 2. When the user rotates the password wheel 2 to the correct position, the elastic force of the elastic piece 5 will help the password wheel 2 accurately stop at this position, making the stop position accurate and reliable. This accurate stop position helps to improve the efficiency and accuracy of password input and reduce password input errors caused by inaccurate stop positions.

[0035] There are three password wheels 2, and there are also three corresponding elastic pieces 5. The fixed plate piece 4 is located on the same side of the three password wheels 2 and is equidistant from each password wheel 2 to ensure a uniform positioning effect on each password wheel 2. Each elastic piece 5 is specifically responsible for positioning and applying elastic force to one password wheel 2. Such a one-to-one configuration ensures that each password wheel 2 can be independently and accurately controlled. Since each password wheel 2 has its corresponding elastic piece 5, during the operation process, the rotation and positioning of each password wheel 2 will not interfere with each other, improving the accuracy and reliability of password input.

[0036] The fixed plate piece 4 is located on the same side of the three password wheels 2 and is equidistant from each password wheel 2. This uniform distance setting brings many benefits. First of all, it ensures that the elastic force applied by each elastic piece 5 to its corresponding password wheel 2 is basically the same. This means that no matter which password wheel 2 is operated, the resistance and positioning feedback felt by the user are similar, and there will be no situation where a certain password wheel 2 is too loose or too tight, thus improving the consistency and comfort of the operation.

[0037] The elastic piece 5 and the fixed plate piece 4 are integrally provided. This integrated structure reduces the number of components, simplifies the manufacturing and assembly processes, and improves production efficiency. Since it is integrally formed, it avoids the problems of loosening or insecure connection that may occur at the connection part between the elastic piece 5 and the fixed plate piece 4, enhancing the stability and reliability of the entire structure. The fixed plate piece 4 is provided with slot holes 8 corresponding to the elastic piece 5. The slot holes 8 provide a certain space for the elastic deformation of the elastic piece 5, enabling the elastic piece 5 to more flexibly generate elastic force and achieve the positioning function when interacting with the password wheel 2. The elastic piece 5 and the fixed plate piece 4 are made of metal materials. Metal materials usually have good elasticity, strength, and wear resistance. The elasticity of the metal enables the elastic piece 5 to maintain a stable elastic force output during long-term use and is not prone to elastic fatigue. Its strength can withstand various forces brought by the rotation of the password wheel 2 to ensure that the structure does not deform or break. And the wear resistance ensures that during frequent contact and friction processes, the elastic piece 5 and the fixed plate piece 4 will not wear out too quickly, extending the service life.

[0038] The password wheel 2 is provided with an indication mark 10 for prompting the user to input the correct password.

[0039] The following are several possible ways to fix the fixing plate 4 to the lock housing 1:

[0040] Method 1: Fixing with screws

[0041] The fixing plate 4 can be fixed to the lock housing 1 by screws. Screw holes are preset on the lock housing 1, and corresponding holes are also set on the fixing plate 4. Use screws to pass through these holes and then tighten the screws to firmly fix the fixing plate 4 on the lock housing 1. This method is simple to operate and the fixing effect is reliable. For example, multiple evenly distributed screws can be used to ensure that the fixing plate 4 is tightly connected to the lock housing 1 at all positions and prevent loosening during use.

[0042] Method 2: Fixing by welding

[0043] The fixing plate 4 is connected to the lock housing 1 by welding. During the welding process, the contact part between the edge of the fixing plate 4 and the lock housing 1 is melted at high temperature to fuse the metal materials of the two together to form a firm connection. The welding points need to be evenly distributed to ensure the strength and stability of the connection. For example, continuous welding around the fixing plate 4 can provide a good fixing effect, but this method usually requires professional welding equipment and technology.

[0044] Method 3: Fixing with a card slot and a buckle

[0045] A card slot is arranged inside the lock housing 1, and a corresponding buckle is arranged on the fixing plate 4. During installation, the buckle of the fixing plate 4 is inserted into the card slot of the lock housing 1 to achieve fixation. This method is convenient for installation and disassembly, and can also provide a certain fixing strength. For example, multiple card slots and buckles can be designed to increase the contact points and improve the reliability of the fixation.

[0046] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A combination wheel elastic positioning structure of a hook mechanical combination lock, comprising a lock housing (1), wherein a rotatable combination wheel (2) is arranged in the lock housing (1), characterized in that: The code wheel (2) is provided with a positioning groove (3); and further comprises a fixing plate (4) and a spring sheet (5); the fixing plate (4) is fixedly connected to the lock housing (1); one end of the spring sheet (5) is connected to the fixing plate (4); the other end of the spring sheet (5) is provided with a bending portion (6); the connection between the bending portion (6) and the spring sheet (5) forms a positioning portion (7) protruding toward the code wheel (2); the positioning portion (7) cooperates with the positioning groove (3) to form the positioning of the code wheel (2).

2. The elastic positioning structure of the combination wheel of the hook mechanical combination lock according to claim 1, characterized in that: A plurality of the positioning grooves (3) are provided, and the plurality of positioning grooves (3) are arranged at equal intervals in the circumferential direction of the code wheel (2).

3. The elastic positioning structure of the combination wheel of the hook mechanical combination lock according to claim 2, characterized in that: The cipher wheels (2) are provided in three pieces, and the corresponding spring pieces (5) are also provided in three pieces.

4. The elastic positioning structure of the combination wheel of the hook mechanical combination lock according to claim 1, characterized in that: The spring piece (5) and the fixing plate (4) are integrally arranged.

5. The elastic positioning structure of the combination wheel of the hook mechanical combination lock according to claim 4, characterized in that: The fixing plate (4) is provided with a slot hole (8) corresponding to the spring sheet (5).

6. The elastic positioning structure of the combination wheel of the hook mechanical combination lock according to claim 1, characterized in that: The shape of the positioning portion (7) matches the shape of the positioning groove (3).

7. The elastic positioning structure of the combination wheel of the hook mechanical combination lock according to claim 4, characterized in that: The spring sheet (5) and the fixing plate (4) are made of metal material.

8. The elastic positioning structure of the combination wheel of the hook mechanical combination lock according to claim 1, characterized in that: The surface of the lock housing (1) is provided with a rectangular opening (9), and the code wheel (2) is partially exposed through the rectangular opening (9).

9. The elastic positioning structure of the combination wheel of the hook mechanical combination lock according to claim 3, characterized in that: The fixing plate (4) is located on the same side of the three code wheels (2) and is equidistant from each code wheel (2) to ensure uniform positioning of each code wheel (2).

10. The elastic positioning structure of the code wheel of the hook mechanical code lock according to claim 1, characterized in that: The password wheel (2) is provided with an indication mark (10) for prompting the user to input the correct password.

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