Multipurpose knob coded lock

Abstract

The utility model discloses a multi-purpose knob coded lock which comprises a shell, a lock bar arranged in the shell and a reset spring enabling the lock bar to reset, a first through hole is formed in the end portion of the shell, the lock bar is provided with a locking end capable of penetrating through the first through hole, a guide hole is formed in the lock bar, a guide plate is arranged on the shell, and the guide plate is provided with a locking end capable of penetrating through the first through hole. The guide plate is located in the guide hole, one end of the reset spring abuts against the guide plate, and the other end of the reset spring abuts against the hole wall of the guide hole. By adding the structure, the coded lock can be installed on a safety box for use, so that the application range of the product is expanded, and higher requirements of users are met.

Description

Technical Field

[0001] The utility model relates to a lock, in particular to a multi-purpose rotary knob password lock. 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 categorized as mechanical, digital, and more. Combination locks are widely used, including home door locks and safe locks.

[0003] However, ordinary combination locks on the market (such as patent number: 202020053392.9; patent name: a multifunctional mechanical combination lock) have a single application scenario, and the same lock is not compatible with door locks or safe locks; and the locking or unlocking structure of the combination lock is complex, and a trigger mechanism and a trigger button need to be designed to achieve locking or unlocking.

[0004] Therefore, the present application designs a rotary knob combination lock which can be used as both a door lock and a safe lock, thereby realizing universalization of the lock and simplifying the structure. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a multi-purpose rotary knob combination lock.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A multi-purpose rotary knob combination lock includes a housing, a locking bar arranged in the housing, and a reset spring for resetting the locking bar. The characteristics are: a through hole is provided at the end of the housing, the locking bar has a locking end that can pass through the through hole, and the reset spring can push the locking bar to move so that the locking end retracts and unlocks the lock.

[0008] A guide hole is provided on the locking bar, a guide plate is provided on the housing, the guide plate is located in the guide hole, one end of the reset spring abuts against the guide plate and the other end of the reset spring abuts against the hole wall of the guide hole.

[0009] The shell is provided with a bulge, the bulge is provided with a positioning groove, the return spring is located in the positioning groove, and one end of the guide plate is fixed in the positioning groove.

[0010] It also includes a locking rod and a second through hole provided on the shell. The locking rod is rotatably connected to the shell and the lock bar, and the locking rod can be rotated under the push of the lock bar so that the lock tongue on the locking rod extends from the second through hole.

[0011] A first rotating shaft is provided in the housing, a second rotating shaft and a first shaft hole matched with the first rotating shaft are provided on the locking rod, and a second shaft hole matched with the second rotating shaft is provided on the locking bar.

[0012] The end of the locking rod is bent to form a locking tongue.

[0013] It also includes a cover plate, on which a limiting protrusion capable of limiting the position of the locking bar is provided.

[0014] The beneficial effects of the present invention are as follows: a through hole 1 is provided at the end of the shell, the lock bar has a locking end that can pass through the through hole 1, and when the dial ring enters the correct password, the protrusion of the lock bar will align with the unlocking notch on the lock plate, so that the reset spring can push the lock bar to move into the shell to unlock; when locking, just rotate the dial ring to squeeze the protrusion outside the lock plate to move the lock bar out of the shell to lock. By adding the above structure, the combination lock can be installed on a safe for use, thereby expanding the application range of the product and meeting the higher requirements of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is the overall structural view of the utility model;

[0017] Figure 2 This is a view of the internal structure of the utility model;

[0018] Figure 3 It is an internal exploded structural view of the present invention. DETAILED DESCRIPTION

[0019] 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.

[0020] 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.

[0021] When explaining an element, although not explicitly described, the element is understood to include a range of error.

[0022] 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.

[0023] 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.

[0024] It should be understood that although the terms "first," "second," etc. 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 this disclosure.

[0025] As will be fully appreciated by those skilled in the art, the features of the different embodiments of the present disclosure may be coupled or combined with each other in part or in whole, and may cooperate with each other in various ways and be driven technically. The embodiments of the present disclosure may be performed independently of each other, or may be performed together in a mutually dependent relationship.

[0026] Reference Figures 1 to 3 The utility model discloses a multi-purpose rotary knob combination lock, comprising a shell 1, a lock bar 2 arranged in the shell 1, and a reset spring 3 for resetting the lock bar 2. The end of the shell 1 is provided with a through hole 1, and the lock bar 2 has a locking end 4 that can pass through the through hole 1. The lock bar 2 is provided with a guide hole 5, which is a rectangular long hole. The shell 1 is provided with a guide plate 6, and the guide plate 6 is located in the guide hole 5. One end of the reset spring 3 is against the guide plate 6 and the other end of the reset spring 3 is against the hole wall of the guide hole 5. The guide plate 6 can not only serve as a support for the reset spring 3, but also can cooperate with the guide hole 5 to guide the shell 1 to move linearly along the guide hole 5.

[0027] In the present application, when the correct password is input into the dial ring 7, the protrusion 8 of the lock bar 2 will be opposite to the unlocking notch 9 on the lock plate, so that the lock bar 2 has space to move, and the return spring 3 can push the lock bar 2 to move toward the inside of the housing 1, and the protrusion 8 of the lock bar 2 will be embedded in the unlocking notch 9 on the lock plate 10, and the locking end 4 will retract from the through hole 1 to unlock; when locking, just rotate the dial ring 7 so that the outer arc wall surface of the lock plate 10 squeezes the protrusion 8, which can move the lock bar 2 out of the housing 1, so that the locking end 4 is inserted into the lock hole on the corresponding side. The lock is realized by adding the above structure so that the combination lock can be installed on a safe for use. Of course, if there is not enough space on the safe, we need to remove the locking rod 11 to prevent the lock tongue 12 from extending from the second through hole and hitting the safe, causing the lock bar 2 to be stuck. The structure of the dial ring 7 for inputting the correct password and the structure of the dial ring 7 for rotating the lock plate 10, including the structure in which the protrusion 8 of the lock bar 2 is opposite to and embedded with the unlocking notch 9 on the lock plate, are all existing technologies, so the specific structure is not described in detail.

[0028] As shown in the figure, a protrusion 13 is provided on the housing 1, and a positioning groove 14 is provided on the protrusion 13. The return spring 3 is located in the positioning groove 14, and one end of the guide plate 6 is fixed in the positioning groove 14. The positioning groove 14 can limit the return spring 3 to remain straight and not bend.

[0029] As shown in the figure, it also includes a locking rod 11 and a through hole 2 provided on the shell 1. The locking rod 11 is rotatably connected to the shell 1 and the lock bar 2, and the locking rod 11 can be rotated under the push of the lock bar 2 so that the lock tongue 12 on the locking rod 11 extends from the through hole 2. The principle of the above structure is that when the dial ring 7 enters the correct password, the protrusion 8 of the lock bar 2 will be opposite to the unlocking notch 9 on the lock plate 10, so that the lock bar 2 has space to move, the reset spring 3 can push the lock bar 2 to move, the protrusion 8 of the lock bar 2 will be embedded in the unlocking notch 9 on the lock plate 10, and the lock bar 2 will push the locking rod 11 to rotate so that the lock tongue 12 extends from the through hole 2, thereby unlocking; when locking, just rotate the dial ring 7 so that the outer arc wall of the lock plate 10 squeezes the protrusion 8, so that the lock bar 2 can move in the opposite direction, and the lock bar 2 will pull the locking rod 11 to rotate so that the lock tongue 12 retracts from the through hole 2 to achieve locking. The above structure is simple and does not require a trigger mechanism or trigger button to lock or unlock, thus saving time and cost for manufacturing and assembly. Of course, because the installation space on the door is relatively large, when locked, the locking end 4 extending from the second through hole will not collide with other objects and cause the lock bar 2 to get stuck. When used on a household door, the combination lock of the present application is not used alone, but as the mechanical part of the smart combination lock. Therefore, when the lock tongue 12 extends from the second through hole, it contacts the clutch mechanism of the smart combination lock to unlock, and when it retracts, it locks.

[0030] As shown in the figure, the housing 1 is provided with a first rotating shaft 15, the lock rod 11 is provided with a second rotating shaft 16 and a first axial hole 17 that cooperates with the first rotating shaft 15, and the lock bar 2 is provided with a second axial hole 18 that cooperates with the second rotating shaft 16. This structure enables the lock bar 2 to drive the lock rod 11 to rotate. As a further feature, the end of the lock rod 11 is bent to form a lock tongue 12. This integral structure of the lock tongue 12 and the lock rod 11 provides good strength and is easy to manufacture.

[0031] As shown in the figure, it also includes a cover plate (not shown in the figure), which is snapped together with the shell 1 and fixed by screws, thereby limiting the lock bar 2 from falling out, and the cover plate is provided with a semicircular limiting protrusion 13 that can limit the position of the lock bar 2. The semicircular limiting protrusion 13 contacts the lock bar 2 to prevent it from moving, with low friction, so that the lock bar 2 moves more smoothly.

[0032] The above is a detailed introduction to a multi-purpose rotary knob 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 multi-purpose rotary knob combination lock comprising a housing, a lock bar disposed in the housing, and a return spring for returning the lock bar to its original position, characterized in that: A through hole 1 is provided at the end of the shell, and the locking bar has a locking end that can pass through the through hole 1. The reset spring can push the locking bar to move so that the locking end retracts and unlocks the lock.

2. The multi-purpose rotary knob combination lock according to claim 1, characterized in that: A guide hole is provided on the locking bar, a guide plate is provided on the housing, the guide plate is located in the guide hole, one end of the reset spring abuts against the guide plate and the other end of the reset spring abuts against the hole wall of the guide hole.

3. The multi-purpose rotary knob combination lock according to claim 2, characterized in that: The shell is provided with a bulge, the bulge is provided with a positioning groove, the return spring is located in the positioning groove, and one end of the guide plate is fixed in the positioning groove.

4. The multi-purpose rotary knob combination lock according to claim 1, characterized in that: It also includes a locking rod and a second through hole provided on the shell. The locking rod is rotatably connected to the shell and the lock bar, and the locking rod can be rotated under the push of the lock bar so that the lock tongue on the locking rod extends from the second through hole.

5. The multi-purpose rotary knob combination lock according to claim 4, characterized in that: A first rotating shaft is provided in the housing, a second rotating shaft and a first shaft hole matched with the first rotating shaft are provided on the locking rod, and a second shaft hole matched with the second rotating shaft is provided on the locking bar.

6. The multi-purpose rotary knob combination lock according to claim 4, characterized in that: The end of the locking rod is bent to form a locking tongue.

7. The multi-purpose rotary knob combination lock according to claim 1, characterized in that: It also includes a cover plate, on which a limiting protrusion capable of limiting the position of the locking bar is provided.

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