Coded lock and code case with same

Abstract

The coded lock comprises an installation plate, a left lock rod, a right lock rod, a code wheel assembly, a limiting plate and a button used for driving the left lock rod and the right lock rod to move at the same time are arranged on the installation plate, a limiting protrusion is arranged at one end of the limiting plate, and the limiting protrusion is located between the left lock rod and the right lock rod; when a correct password is input into the password wheel assembly, the limiting protrusions can tilt up to cancel movement limitation on the left lock rod and the right lock rod, and the left lock rod and the right lock rod can be driven to move and unlock at the same time by pressing the button. The luggage lock is simple in structure and convenient to unlock, the left lock rod and the right lock rod can be directly inserted into the lock rod seats of the luggage body when the luggage lock is installed on the luggage, and firmness is higher.

Description

Technical Field

[0001] This utility model relates to locks, and more particularly to a combination lock and a combination box incorporating the combination lock. Background Technology

[0002] Currently, most bag locks include combination locks, but the structure of most combination locks is overly complex, and they can only be used on bags with zippers, locking the zipper via a hook. Bags without zippers generally use a snap-lock mechanism, locking by the interlocking of male and female snaps. This type of snap-lock on bags requires both hands to press one snap simultaneously to unlock, which is inconvenient. Summary of the Invention

[0003] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide a combination lock and a combination box with the combination lock.

[0004] The purpose of this utility model is achieved through the following technical solution: a combination lock, including a mounting plate, the mounting plate is provided with a left locking rod, a right locking rod, a combination wheel assembly, a limiting plate and a button for driving the left locking rod and the right locking rod to move simultaneously, one end of the limiting plate is provided with a limiting protrusion, the limiting protrusion is located between the left locking rod and the right locking rod;

[0005] When the correct password is entered into the password wheel assembly, the limiting protrusion can be raised to remove the movement restriction on the left and right locking rods. Pressing the button can simultaneously move the left and right locking rods to unlock the device.

[0006] As an improvement of the combination lock of this utility model, one end of the left locking rod and the right locking rod are provided with a stop block, and the stop block is provided with a stop slope. The bottom ends of the button are respectively provided with pressing blocks, and the inner side of the pressing block is provided with a pressing slope, and the pressing slope contacts the stop slope.

[0007] As an improvement of the combination lock of this utility model, both the bottom of the left locking bar and the right locking bar are provided with locking bar spring mounting seats, the locking bar spring is provided on the locking bar spring mounting seats, and the mounting plate is provided with spring receiving grooves corresponding to the position of the locking bar springs, and the locking bar springs are accommodated in the spring receiving grooves.

[0008] As an improvement of the combination lock of this utility model, the mounting plate is provided with a limiting plate spring at the position corresponding to the limiting protrusion, and one end of the limiting plate spring abuts against the limiting protrusion;

[0009] When the correct password is entered into the password wheel assembly, the limiting plate spring pushes the end of the limiting plate with the limiting protrusion to lift up.

[0010] As an improvement of the combination lock of this utility model, the limiting plate is provided with multiple limiting blocks at intervals, and each limiting block is provided with a V-shaped protrusion in the middle.

[0011] As an improvement of the combination lock of this utility model, the combination wheel assembly includes a wheel axle, a code-changing wheel, a combination wheel, a spring, a code-changing block, and a code-changing switch. The code-changing wheel is mounted on the combination wheel, the wheel axle is mounted on the code-changing wheel, the spring is mounted on the wheel axle, the code-changing block is located at one end of the wheel axle, the code-changing switch is located on one side of the code-changing block, and a spring is provided at the bottom of the combination wheel.

[0012] As an improvement of the combination lock of this utility model, the dial wheel is provided with a V-shaped groove. When the correct password is entered on the combination wheel, the V-shaped groove corresponds to the V-shaped protrusion. The V-shaped protrusion can be embedded in the V-shaped groove to achieve tilting and repositioning.

[0013] As an improvement to the combination lock of this utility model, pre-tightening blocks are provided at both ends of the mounting plate, and pre-tightening block springs are provided on the pre-tightening blocks. The pre-tightening block springs can play a pre-tightening role when the lid is placed on the box body, so that the lock rod can be tightly engaged with the lock rod seat, which can prevent the problem of loose connection between the lid and the box body.

[0014] Another objective of this utility model is to provide a combination lock box, including a lid and a body. The lid has a combination lock in the middle of its front side, and the body has locking rod limiting seats on both sides of its front end. The locking rod limiting seats have limiting holes.

[0015] In the locked state, the left locking rod and the right locking rod are respectively inserted into the limiting holes of the locking rod limiting seat;

[0016] In the unlocked state, the left and right locking rods are driven by the button and disengage from the locking rod limit seat.

[0017] As an improvement of the combination lock box of this utility model, the front center of the box cover is provided with a combination wheel protrusion hole and a button protrusion hole, the rear sides of the box cover are respectively provided with connecting seats, the rear sides of the box body are respectively provided with card seats, and the connecting seats and the card seats are connected by a pivot pin.

[0018] The beneficial effects of this utility model are as follows: This utility model uses buttons to control the movement of the left and right locking rods, realizing the locking and unlocking of the suitcase. When locked, the movement of the left and right locking rods is restricted by the protrusion of the limiting plate, and the button cannot push the left and right locking rods. When unlocking with a password, the protrusion of the limiting plate will tilt upwards, canceling the movement of the left and right locking rods. Now, pressing the button can drive the left and right locking rods to move. This utility model has a simple structure, is easy to unlock, and when installed on a suitcase, the left and right locking rods can be directly inserted into the locking rod seats of the suitcase, resulting in higher stability. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present invention;

[0020] Figure 2 This is the front view of this utility model;

[0021] Figure 3 This is an exploded view of this utility model;

[0022] Figure 4 This is a schematic diagram of the limiting plate structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of this utility model installed on the box;

[0024] Figure 6 This is a rear view of the housing of this utility model;

[0025] Figure 7 This is a schematic diagram of the structure of the locking rod of this utility model being inserted into the locking rod limiting seat of the box body;

[0026] The attached diagram is labeled as follows: 1. Mounting plate; 2. Left locking bar; 3. Right locking bar; 4. Combination wheel assembly; 5. Limiting plate; 6. Button; 7. Abutting block; 8. Locking bar spring mounting seat; 9. Locking bar spring; 10. Spring receiving groove; 11. Limiting plate spring; 12. Preload block; 13. Preload block spring; 41. Wheel axle; 42. Adjustment wheel; 43. Combination wheel; 44. Spring; 45. Adjustment block; 46. Adjustment switch; 47. Spring piece; 48. 51. V-shaped groove; 52. Limiting protrusion; 53. Limiting block; 64. V-shaped protrusion; 65. Pressing block; 66. Pressing slope; 77. Abutting slope; 100. Case cover; 200. Case body; 300. Combination lock; 400. Locking rod limiting seat; 500. Limiting hole; 600. Combination wheel extension hole; 700. Button extension hole; 800. Code switch extension hole; 900. Connecting seat; 201. Card seat; 202. Shaft pin. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0029] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0030] like Figures 1-4 As shown, a combination lock includes a mounting plate 1, on which a left locking bar 2, a right locking bar 3, a combination wheel assembly 4, a limiting plate 5, and a button 6 for moving the left locking bar 2 and the right locking bar 3 simultaneously are provided. One end of the limiting plate 5 is provided with a limiting protrusion 51, which is located between the left locking bar 2 and the right locking bar 3.

[0031] When the correct password is entered into the combination wheel assembly 4, the limit protrusion 51 can be raised to remove the movement restriction on the left locking lever 2 and the right locking lever 3. Pressing the button 6 can simultaneously move the left locking lever 2 and the right locking lever 3 to unlock.

[0032] Preferably, one end of the left locking lever 2 and the right locking lever 3 is provided with a stop block 7, and the stop block 7 is provided with a stop slope 71. The bottom ends of the button 6 are respectively provided with pressing blocks 61, and the inner side of the pressing block 61 is provided with a pressing slope 62, which contacts the stop slope 71.

[0033] Preferably, the bottom of both the left locking rod 2 and the right locking rod 3 is provided with a locking rod spring mounting seat 8, the locking rod spring 9 is provided on the locking rod spring mounting seat 8, and the mounting plate 1 is provided with a spring receiving groove 10 corresponding to the position of the locking rod spring 9, and the locking rod spring 9 is accommodated in the spring receiving groove 10.

[0034] Preferably, the mounting plate 1 is provided with a limiting plate spring 11 at the position corresponding to the limiting protrusion 51, and one end of the limiting plate spring 11 abuts against the limiting protrusion 51;

[0035] When the correct password is entered into the password wheel assembly 4, the limit plate spring 11 pushes the end of the limit plate 5 with the limit protrusion 51 to lift up.

[0036] Preferably, the limiting plate 5 is provided with multiple limiting blocks 52 at intervals, and each limiting block 52 is provided with a V-shaped protrusion 53 in the middle.

[0037] Preferably, the code wheel assembly 4 includes a wheel axle 41, a code-switching wheel 42, a code wheel 43, a spring 44, a code-switching block 45, and a code-switching switch 46. The code-switching wheel 42 is mounted on the code wheel 43, the wheel axle 41 is mounted on the code-switching wheel 42, the spring 44 is mounted on the wheel axle 41, the code-switching block 45 is located at one end of the wheel axle 41, the code-switching switch 46 is located on one side of the code-switching block 45, and a spring piece 47 is provided at the bottom of the code wheel 43.

[0038] Preferably, the code wheel 42 is provided with a V-shaped groove 48. When the correct code is entered on the code wheel 43, the V-shaped groove 48 corresponds to the V-shaped protrusion 53, and the V-shaped protrusion 53 can be embedded in the V-shaped groove 48 to achieve tilting and repositioning.

[0039] Preferably, pre-tightening blocks 12 are provided at both ends of the mounting plate 1, and pre-tightening block springs 13 are provided on the pre-tightening blocks 12. The pre-tightening block springs 13 can play a pre-tightening role when the lid is placed on the box body, so that the locking rod can be tightly engaged with the locking rod seat, which can prevent the problem of loose connection between the lid and the box body.

[0040] like Figures 5-7 As shown, a combination lock box includes a lid 100 and a body 200. The lid 100 has a combination lock 300 in the middle of the front side. The body 200 has a locking bar limiting seat 400 on each side of the front end. The locking bar limiting seat 400 has a limiting hole 500.

[0041] When locked, the left locking rod 2 and the right locking rod 3 are respectively inserted into the limiting hole 500 of the locking rod limiting seat 400;

[0042] When unlocked, the left locking lever 2 and the right locking lever 3 are driven by the button 6 and disengage from the locking lever limit seat 400.

[0043] Preferably, the front center of the cover 100 is provided with a combination wheel protrusion hole 600, a button protrusion hole 700 and a code switch protrusion hole 800, and the rear two sides of the cover 100 are respectively provided with connecting seats 900, and the rear two sides of the body 200 are respectively provided with card seats 201, and the connecting seats 900 and card seats 201 are connected by a pivot pin 202.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and structure of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A combination lock, comprising a mounting plate, characterized in that, The mounting plate is provided with a left locking bar, a right locking bar, a combination wheel assembly, a limiting plate, and a button for moving the left locking bar and the right locking bar simultaneously. One end of the limiting plate is provided with a limiting protrusion, which is located between the left locking bar and the right locking bar. When the correct password is entered into the password wheel assembly, the limiting protrusion can be raised to remove the movement restriction on the left and right locking rods. Pressing the button can simultaneously move the left and right locking rods to unlock the device.

2. The combination lock according to claim 1, characterized in that, Both the left and right locking rods have a stop block at one end, and the stop block has a stop slope. The bottom ends of the button are respectively provided with pressing blocks, and the inner side of the pressing block has a pressing slope, which contacts the stop slope.

3. The combination lock according to claim 2, characterized in that, Both the left and right locking rods have locking rod spring mounting seats at their bottoms. A locking rod spring is mounted on the locking rod spring mounting seat. The mounting plate has a spring receiving groove corresponding to the position of the locking rod spring, and the locking rod spring is accommodated in the spring receiving groove.

4. The combination lock according to claim 1, characterized in that, The mounting plate is provided with a limiting plate spring at the position corresponding to the limiting protrusion, and one end of the limiting plate spring abuts against the limiting protrusion. When the correct password is entered into the password wheel assembly, the limiting plate spring pushes the end of the limiting plate with the limiting protrusion to lift up.

5. The combination lock according to claim 1, characterized in that, The limiting plate is provided with multiple limiting blocks at intervals, and each limiting block has a V-shaped protrusion in the middle.

6. The combination lock according to claim 5, characterized in that, The cipher wheel assembly includes an axle, a code-switching wheel, a cipher wheel, a spring, a code-switching block, and a code-switching switch. The code-switching wheel is mounted on the cipher wheel, the axle is mounted on the code-switching wheel, the spring is mounted on the axle, the code-switching block is located at one end of the axle, the code-switching switch is located on one side of the code-switching block, and a spring is provided at the bottom of the cipher wheel.

7. The combination lock according to claim 6, characterized in that, The code wheel is provided with a V-shaped groove. When the correct code is entered on the code wheel, the V-shaped groove corresponds to the V-shaped protrusion. The V-shaped protrusion can be embedded in the V-shaped groove to achieve tilting and repositioning.

8. The combination lock according to claim 1, characterized in that, The mounting plate is provided with pre-tightening blocks at both ends, and each pre-tightening block is provided with a pre-tightening block spring.

9. A combination lock box, characterized in that, The case includes a lid and a body. The lid has a combination lock as described in any one of claims 1-8 at the center of its front side. The body has locking rod limiting seats on both sides of its front end, and each locking rod limiting seat has a limiting hole. In the locked state, the left locking rod and the right locking rod are respectively inserted into the limiting holes of the locking rod limiting seat; In the unlocked state, the left and right locking rods are driven by the button and disengage from the locking rod limit seat.

10. The combination lock box according to claim 9, characterized in that, The front center of the lid has a combination wheel protrusion hole and a button protrusion hole. The rear sides of the lid have connecting seats, and the rear sides of the box body have card seats. The connecting seats and card seats are connected by a pivot pin.

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