Button type code changing mechanical coded lock

Abstract

The utility model discloses a button type code changing mechanical coded lock, which comprises a key positioning plate, a clearing pull plate and a lock shell, and is characterized by further comprising a first elastic reset piece, a second elastic reset piece, a clearing lever, a code setting button and a code setting button, the code setting button and the code setting button are arranged on the key positioning plate, and the lock shell is provided with a button hole and a key hole. One end of a pressing rod of the code setting button is exposed out of the lock shell through the button hole, the end of the code setting button is exposed out of the lock shell through the button hole, a limiting structure for limiting rotation of the clearing lever is arranged in the lock shell, and the clearing lever can be pushed by the code setting button to relieve limitation of the limiting structure. The clearing lever can rotate through pressing of the code setting key so as to drive the clearing pull plate to move, and the clearing lever can reset through the action of the first elastic reset piece and the second elastic reset piece.

Description

Technical Field

[0001] The utility model relates to a mechanical password lock, in particular to a button-type code-changing mechanical password lock. Background Art

[0002] Currently, combination locks are widely available on the market due to their convenient operation and good anti-theft effect. However, ordinary electronic combination locks require battery power to work properly. Therefore, the applicant has previously applied for a utility model patent for a mechanical combination lock that does not require batteries (patent number: CN200920008462, patent name: intelligent mechanical combination lock cylinder).

[0003] However, the above structure still has defects.

[0004] First, changing the password requires the code changing key and the code changing shaft to drive the clearing pull plate to move so as to achieve the code changing. The above structure cannot change the code in the front and the code changing process is more troublesome;

[0005] Second, the buttons used to drive the movable plate to step through the stepping lever, which had a complex structure and took a long time to assemble.

[0006] 3. The previous stepping hook and positioning hook need to cooperate with the torsion spring to cooperate with the encoding frame to realize the movement and positioning of the encoding frame when unlocking and the reset when locking. The above structure is complicated and the assembly is time-consuming. Utility Model Content

[0007] In order to overcome the deficiencies of the prior art, the utility model provides a mechanical combination lock with a button-type code change function.

[0008] The technical solution adopted by the utility model to solve its technical problems is:

[0009] A button-type code-changing mechanical password lock comprises a key positioning plate, a clearing pull plate, and a lock shell, and is characterized in that it also comprises an elastic reset member 1, an elastic reset member 2, a clearing lever, a code-setting button and a code-setting button arranged on the key positioning plate, the lock shell being provided with a button hole and a key hole, one end of a pressing rod of the code-setting button being exposed outside the lock shell through the button hole, and an end of the code-setting button being exposed outside the lock shell through the key hole, a restricting structure restricting the rotation of the clearing lever being provided in the lock shell, the clearing lever being able to release the restriction of the restricting structure by pushing the code-setting button, and the clearing lever being able to rotate by pressing the code-setting button to drive the clearing pull plate to move, and the clearing lever being able to reset by the action of the elastic reset member 1 and the elastic reset member 2.

[0010] The limiting structure includes a limiting block arranged on the side of the clearing lever, a through hole is provided on the key positioning plate, the clearing lever is located in the through hole, and the limiting block can be against the key positioning plate.

[0011] The button positioning plate is relatively provided with an axis hole, and the clearing lever is relatively provided with a rotating shaft that is rotatably matched with the axis hole.

[0012] The cleaning pull plate is provided with a pulling hole, the cleaning lever is provided with a pulling plate, and one end of the pulling plate is located in the pulling hole.

[0013] The clearing lever is provided with a toggle plate, and the code setting button can abut against the toggle plate and can drive the clearing lever to rotate by squeezing the toggle plate.

[0014] The first elastic reset member is a compression spring, and a mounting rod is provided on the clearing lever, and the compression spring is arranged on the mounting rod.

[0015] The second elastic reset member is a torsion spring, which is arranged on the rotating shaft and the torsion arm of the torsion spring is against the key positioning plate.

[0016] It also includes a password button and a movable plate, the end of the password button is exposed through the corresponding button hole, the bottom of the password button is provided with a pressing block, the movable plate is provided with a plate hole, the pressing block is provided with an extrusion slope, and the extrusion slope can be squeezed with the edge of the plate hole to push the movable plate to move.

[0017] It also includes an encoding frame, a stepping hook, and a positioning hook. The positioning hook is fixed to the button positioning plate, and the stepping hook is fixed to the movable plate. The stepping hook and the positioning hook are both springs, and the front ends of the springs are bent.

[0018] The beneficial effects of the present invention are as follows: the present invention includes a key positioning plate, a clearing pull plate, a lock shell, and also includes an elastic reset member, a clearing lever, a coding button and a coding button arranged on the key positioning plate; the clearing lever can release the restriction of the restriction structure by pushing the coding button, and after the restriction structure is released, the clearing lever can be rotated by pressing the coding button to drive the clearing pull plate to move and realize code clearing; the coding button and the coding button can be arranged on the front side of the lock shell, and the code clearing function can be realized by simply pressing, so the operation is convenient and quick, which meets the higher needs of users and improves the competitiveness of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is the overall structural view of the mechanical combination lock;

[0021] Figure 2 This is a view of the internal structure of the mechanical combination lock with the shell hidden;

[0022] Figure 3 This is a view of the internal structure of a mechanical combination lock with the housing and buttons hidden;

[0023] Figure 4 This is a structural view of the tooth grooves between the stepping hook, positioning hook and stepping teeth;

[0024] Figure 5 It is an exploded view of the internal related structure;

[0025] Figure 6 This is the structural view of the numeric keys;

[0026] Figure 7 It is a structural view of the clear lever. DETAILED DESCRIPTION

[0027] The advantages and features of the present disclosure and its implementation methods will be illustrated by the following embodiments described with reference to the accompanying drawings. However, the present disclosure can be embodied in different forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure will be comprehensive and complete and will fully convey the scope of the present disclosure to those skilled in the art. Furthermore, the present disclosure is limited only by the scope of the claims.

[0028] The shapes, sizes, proportions, angles and numbers disclosed in the drawings for describing the embodiments of the present disclosure are merely examples, and therefore the present disclosure is not limited to the details shown. Throughout this specification, the same reference numerals refer to the same elements. In the following description, when a detailed description of a related known function or configuration is determined to be unnecessary to obscure the focus of the present disclosure, the detailed description will be omitted. Where “including”, “having” and “comprising” described in this specification are used, other components may be added unless “only” is used. Unless otherwise indicated, terms in the singular may include plural forms.

[0029] When explaining an element, although not explicitly described, the element is understood to include a range of error.

[0030] When describing a positional relationship, for example, when the positional relationship is described as "on," "above," "below," and "adjacent to," one or more parts may be arranged between two other parts, unless "immediately" or "directly" is used.

[0031] When describing a temporal relationship, for example, when a temporal order is described as “after,” “subsequently,” “next,” and “before,” discontinuous cases may be included unless “just” or “directly” is used.

[0032] It should be understood that although terms such as "first" and "second" may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from other elements. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element, without departing from the scope of the present disclosure.

[0033] As can be fully understood by those skilled in the art, the features of different embodiments of the present disclosure can be partially or fully coupled or combined with each other, and can cooperate with each other in various ways and be technically driven. The embodiments of the present disclosure can be executed independently of each other, or can be executed together in a mutually dependent relationship.

[0034] Referring to Figures 1 to 7 , the present utility model discloses a mechanical password lock with button - type code replacement, which includes a key positioning plate 1, a clearing pull plate 2, a lock case 3, and further includes a first elastic resetting member (not shown in the figure), a second elastic resetting member (not shown in the figure), a clearing lever 6, a code - setting button 7 and a code - setting key 8 arranged on the key positioning plate 1. The lock case 3 is provided with a button hole and a key hole. One end of the pressing rod 9 of the code - setting button 7 is exposed outside the lock case 3 through the button hole, and the end of the code - setting key 8 is exposed outside the lock case 3 through the key hole. A limiting structure for restricting the rotation of the clearing lever 6 is arranged inside the lock case 3. The clearing lever 6 can be released from the restriction of the limiting structure by the push of the code - setting button 7, and the clearing lever 6 can rotate by pressing the code - setting key 8 to drive the clearing pull plate 2 to move. The clearing lever 6 can be reset by the action of the first elastic resetting member and the second elastic resetting member. The principle of the above - mentioned solution is as follows: When the password needs to be changed, first enter the correct password, and then press the code - setting button 7. The code - setting button 7 releases the rotation restriction of the clearing lever 6 on the limiting structure. Then press the code - setting key 8. In this application, the code - setting key 8 is the key with a "meter" character engraved on it and arranged together with numbers. By pressing the code - setting key 8, the clearing lever 6 is squeezed to rotate. When the clearing lever 6 rotates, it will drive the clearing pull plate 2 to move, thereby realizing the clearing of the old password. Then enter the new password to complete the password replacement. In the above process, how the clearing pull plate 2 clears the old password and the structure and principle of the password - inputting part are the same as those of the original product without change, so the relevant specific structure and principle will not be elaborated here. Above, the code - setting button 7 and the code - setting key 8 are purchased components. After the pressing rod 9 of the code - setting button 7 is pressed, it can bounce back and reset by the elastic force of the spring. An extrusion block 4 with an inclined surface is arranged on the pressing rod 9, and the clearing lever 6 is extruded through the inclined surface. After the code - setting key 8 is pressed, it can also bounce back and reset by the elastic force of the spring.

[0035] As shown in the figure, the key positioning plate 1 is relatively provided with an axis hole 13, and the clearing lever 6 is relatively provided with a rotating shaft 10 that rotates with the axis hole 13. The above structure facilitates the rotation of the clearing lever 6, and the axis hole 13 is a semicircular hole, which facilitates the installation of the rotating shaft 10. Of course, because the coding key 8 will be against the clearing lever 6, thereby preventing the rotating shaft 10 from escaping from the axis hole 13, the above structure also facilitates the inclined surface of the extrusion block 4 to squeeze the end of the rotating shaft 10, so that the rotating shaft 10 slides in the axis hole 13.

[0036] As shown in the figure, the limiting structure includes a limiting block 11 arranged on the side of the clearing lever 6, and a through hole 12 is provided on the key positioning plate 1. The clearing lever 6 is located in the through hole 12, and the limiting block 11 is located above the key positioning plate 1 outside the through hole 12, so that the limiting block 11 can be against the key positioning plate 1. In this state, pressing the coding button 8 cannot make the clearing lever 6 rotate. It is necessary to first press the coding button 7 to squeeze the clearing lever 6 to move horizontally in the through hole 12, so that the limiting block 11 is located above the through hole 12 and has rotation space to stagger the position with the key positioning plate 1. Of course, the clearing lever 6 needs to be reset after moving. The specific structure is that the elastic reset member is a compression spring, and the clearing lever 6 is provided with a mounting rod 14. The compression spring is arranged on the mounting rod 14, one end of the compression spring is against the hole wall of the through hole 12 and the other end is against the clearing lever 6, and the clearing lever 6 can be reset by the elastic force of the compression spring.

[0037] As shown in the figure, the specific structure of the coding button 8 and the clearing lever 6 is that a toggle plate 15 is provided on the clearing lever 6, and the coding button 8 can be abutted against the toggle plate 15 and can drive the clearing lever 6 to rotate by squeezing the toggle plate 15. Of course, the clearing lever 6 also needs to be reset after rotation. The specific structure is that: the second elastic reset member is a torsion spring, which is fixed on the rotating shaft 10 and the torsion arm of the torsion spring is abutted against the key positioning plate 1. The elastic force of the torsion spring is used to reset the clearing lever 6 after rotation and to enable the coding button 8 to be abutted against the toggle plate 15. The above structure is simple and easy to manufacture.

[0038] As shown in the figure, the specific structure of the clearing lever 6 driving the clearing pull plate 2 is that the clearing pull plate 2 is provided with a pulling hole 16, and the clearing lever 6 is provided with a pulling plate 17. One end of the pulling plate 17 is located in the pulling hole 16. When the clearing lever 6 rotates, the pulling plate 17 will be squeezed with the hole wall of the pulling hole 16 while rotating to drive the clearing pull plate 2 to move, thereby achieving code clearing. The above structure is not only simple, but also can realize that the pulling plate 17 drives the clearing pull plate 2 to move in a rotating manner.

[0039] As shown in the figure, it also includes a password button 18 and a movable plate 19. The end of the password button 18 is exposed through the corresponding button hole. The bottom of the password button 18 is provided with a pressing block 20. The movable plate 19 is provided with a plate hole 5. The pressing block 20 is provided with an extrusion slope, and the extrusion slope can be pressed against the edge of the plate hole 5 to push the movable plate 19 to move. Through the design of the above structure, we have eliminated the previous stepping lever and directly force the movable plate 19 to step through the extrusion slope of the password button 18, which not only simplifies the structure but also makes assembly easier.

[0040] As shown in the figure, it also includes an encoding frame 21, a stepping hook 22, and a positioning hook 23. The positioning hook 23 is fixed to the key positioning plate 1, and the stepping hook 22 is fixed to the movable plate 19. The stepping hook 22 and the positioning hook 23 are both springs, and the front end of the spring is bent. In the past, the stepping hook 22 and the movable plate 19 were made of aluminum, not springs, and could not be elastically deformed. Therefore, the stepping hook 22 and the movable plate 19 as well as the positioning hook 23 and the key positioning plate 1 all need to be hinged. When the encoding frame 21 moves, it will be lifted up by the stepping teeth on the encoding frame 21, and then rotated by the elastic force of the spring and stuck in the tooth groove between the stepping teeth 24, so that the encoding frame 21 cannot move in the opposite direction. Therefore, the structure is complicated and the assembly is difficult. Now, through the design of the spring, no spring is required and the installation structure is simpler than before. After the stepping hook 22 and the positioning hook 23 are lifted up by the stepping teeth 24 on the encoding frame 21, the front end of the spring can be ensured to be stuck in the tooth groove between the stepping teeth 24 by its own elastic force.

[0041] In summary, the structure of this application has the following advantages:

[0042] The code change is changed to the front, and the code change shaft and code change key are cancelled. The code change is changed to a button, which makes the code change more convenient; the stepping lever is cancelled, and the movable plate 19 is forced to step by the inclined surface of the button, which makes the structure simpler; the stepping hook 22 and the positioning hook 23 adopt a spring design, so no spring is required, the structure is simple and the assembly is easy; the lock pin is cancelled, and the external zero return structure is used.

[0043] The above is a detailed introduction to a push-button code-changing mechanical combination lock provided by an embodiment of the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only intended to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there may be changes in the specific implementation method and application scope. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. A mechanical combination lock with a push-button code change function, comprising a key positioning plate, a clearing plate, and a lock housing, characterized in that: It also includes an elastic return member 1, an elastic return member 2, a clearing lever, a coding button and a coding button arranged on the key positioning plate, the lock shell is provided with a button hole and a key hole, one end of the pressing rod of the coding button is exposed outside the lock shell through the button hole, the end of the coding button is exposed outside the lock shell through the key hole, a restricting structure that restricts the rotation of the clearing lever is provided in the lock shell, the clearing lever can release the restriction of the restricting structure by pushing the coding button, and the clearing lever can be rotated by pressing the coding button to drive the clearing pull plate to move, and the clearing lever can be reset by the action of the elastic return member 1 and the elastic return member 2.

2. A push-button code-changing mechanical lock according to claim 1, characterized in that: The limiting structure includes a limiting block arranged on the side of the clearing lever, a through hole is provided on the key positioning plate, the clearing lever is located in the through hole, and the limiting block can be against the key positioning plate.

3. A push-button code-changing mechanical lock according to claim 1, characterized in that: The button positioning plate is relatively provided with an axis hole, and the clearing lever is relatively provided with a rotating shaft that is rotatably matched with the axis hole.

4. A push-button code-changing mechanical lock according to claim 1, characterized in that: The cleaning pull plate is provided with a pulling hole, the cleaning lever is provided with a pulling plate, and one end of the pulling plate is located in the pulling hole.

5. A push-button code-changing mechanical combination lock according to claim 1, characterized in that: The clearing lever is provided with a toggle plate, and the code setting button can abut against the toggle plate and can drive the clearing lever to rotate by squeezing the toggle plate.

6. A push-button code-changing mechanical combination lock according to claim 1, characterized in that: The first elastic reset member is a compression spring, and a mounting rod is provided on the clearing lever, and the compression spring is arranged on the mounting rod.

7. A push-button code-changing mechanical lock according to claim 3, characterized in that: The second elastic reset member is a torsion spring, which is arranged on the rotating shaft and the torsion arm of the torsion spring is against the key positioning plate.

8. The mechanical combination lock with a push button code change according to claim 1, characterized in that: It also includes a password button and a movable plate, the end of the password button is exposed through the corresponding button hole, the bottom of the password button is provided with a pressing block, the movable plate is provided with a plate hole, the pressing block is provided with an extrusion slope, and the extrusion slope can be squeezed with the edge of the plate hole to push the movable plate to move.

9. A push-button code-changing mechanical combination lock according to claim 8, characterized in that: It also includes an encoding frame, a stepping hook, and a positioning hook. The positioning hook is fixed to the button positioning plate, and the stepping hook is fixed to the movable plate. The stepping hook and the positioning hook are both springs, and the front ends of the springs are bent.

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