Ball brake coded lock with locking rod capable of idling

Abstract

The utility model relates to a ball brake coded lock with a locking rod capable of idling, which comprises a lock body, a rotating piece and the locking rod, the rotating piece is rotatably arranged on the lock body, a locking cavity for the locking rod to insert is arranged in the lock body, the ball brake coded lock further comprises a ball, a containing groove for containing the ball is arranged in the rotating piece, and a sliding groove for the ball to slide is arranged on the lock body. The sliding groove is provided with a fixed through opening extending to be communicated with the locking cavity, the ball partially enters the locking cavity through the fixed through opening, the locking rod is provided with an annular idling groove matched with the ball in shape, the rotating piece has an unlocking state and a locking state, in the unlocking state, the containing groove is opposite to the sliding groove, the ball partially enters the containing groove, and in the locking state, the ball partially enters the locking cavity. No sphere exists in the fixed port; in the locking state, the containing groove and the sliding groove are staggered, and the ball part enters the fixing through opening.

Description

TECHNICAL FIELD

[0001] The utility model relates to a ball brake coded lock with idle locking rod, and particularly relates to a ball brake coded lock with idle locking rod. BACKGROUND

[0002] As a common security lock, coded locks are widely used in luggage, storage cabinets, padlocks and other fields. The basic principle of traditional coded locks is to rotate the code disc to drive the internal impeller. When all the gaps on the impeller are rotated to the aligned position, a "lock channel" is formed. At this time, the brake part cooperating with the lock channel falls into the lock channel, thereby removing the restriction on the locking rod and realizing the unlocking.

[0003] In the prior art, a widely used brake part design is a sheet-shaped brake structure. The structure usually includes one or more sheet-shaped brake sheets. Under the action of a spring, the brake protrusion at the end of the brake sheet is pressed towards the code dial wheel rim. In the non-code alignment state, the brake protrusion is clamped on the wheel rim of the code dial, and cannot be moved. The other end is directly clamped into the clamping groove or limiting structure on the locking rod, thereby physically preventing the rotation of the locking rod and making the lock unable to be opened.

[0004] Although the traditional sheet-shaped brake structure is simple and effective, it has a significant defect. When the password is not aligned and in the locked state, the user cannot rotate the rigidly clamped locking rod. The locking rod will be completely unable to rotate. If the user mistakenly operates and twists the locking rod with force, the huge torsion will directly act on the brake sheet, the clamping groove of the locking rod and the code dial mechanism connected thereto. Long-term or instantaneous overload may cause deformation, wear and even breakage of the components, affecting the service life and reliability of the lock. SUMMARY

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a ball brake coded lock with idle locking rod.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: including lock body, rotating part and locking rod, the rotating part is rotationally arranged on the lock body, the lock body has a locking cavity for inserting the locking rod, further comprising a ball, the rotating part is provided with a containing groove for accommodating the ball, the lock body is provided with a sliding groove for sliding the ball, the sliding groove has a fixed opening extending to the locking cavity in communication, and the ball enters the locking cavity through the fixed opening, the locking rod is provided with an annular idle slot matched with the shape of the ball, the rotating part has an unlocking state and a locking state, the unlocking state is that the containing groove is opposite to the sliding groove, the ball partially enters the containing groove, and the fixed opening is free of the ball; the locking state is that the containing groove is opposite to the sliding groove, and the ball partially enters the fixed opening.

[0007] By adopting the above technical scheme, when the password is incorrect, the rotating piece rotates, but the accommodating groove inside it is misaligned with the sliding groove on the lock body, forcing the ball to be clamped into the fixed opening of the sliding groove and the annular idling groove of the key rod, at this time, forcibly rotating the key rod, the ball only rolls in the annular idling groove, achieving the idling of the locking rod, when the password is correct, at this time, the rotating piece rotates to the accommodating groove and the sliding groove are aligned, the ball can be partially retracted into the accommodating groove, and the locking of the key rod is released, at this time, the locking rod can be pulled out of the locking cavity, achieving unlocking; the rolling of the ball in the annular idling groove replaces the rigid clamping, converts the excessive torsion into idling, effectively protects the ball, the rotating piece and the internal structure of the lock body, greatly improves the anti-violence operation ability and the overall service life of the lock, improves the reliability, and can adjust the angle direction of the locking rod.

[0008] The utility model further sets up: rotating piece including code disc and impeller, impeller setting in lock body and impeller on setting has fixed block, code disc on setting has with fixed block adaptation fixed slot, code disc setting in impeller periphery, fixed slot and fixed block constitute code disc to impeller's rotation, accommodating recess is set to the inner periphery of impeller.

[0009] By adopting the above technical scheme, when the user rotates the code disc, the fixed slot thereon drives the fixed block on the impeller, thereby synchronously driving the impeller to rotate, and the accommodating groove is arranged on the impeller, so that the rotation of the impeller directly determines whether the ball can be aligned with the sliding groove, that is, the password of the lock is determined by the rotation angle of the impeller; the split structure is adopted, so that the password control part and the user operation part can be designed separately, increasing the design flexibility, and at the same time, this structure is convenient for assembly and maintenance, the cooperation of the fixed block and the fixed slot provides reliable power transmission, ensuring the accuracy and consistency of password change.

[0010] The utility model further sets up: including adjusting wheel and intermediate wheel, impeller slip setting in lock body, adjusting wheel and intermediate wheel setting in lock body one side, intermediate wheel is located between impeller and adjusting wheel, intermediate wheel on setting has slip chute, adjusting wheel on setting has push block and push block with slip chute is opposite, slip chute and push block constitute rotating adjusting wheel to intermediate wheel's push on lock body.

[0011] By adopting the above technical scheme, when the password needs to be changed, the adjusting wheel is rotated, and the push block thereon acts on the slip chute of the intermediate wheel. Due to the slope effect of the chute, the rotary motion is converted into linear motion, the intermediate wheel is axially moved, and then the impeller is pushed to slide on the lock body, the initial angle position of the impeller relative to the code disc is changed, and thus the password is reset; the slip chute and the push block are used to convert the rotary motion into linear movement, so that the password can be reset without disassembling the lock body, greatly improving the practicability and user experience of the lock, and meeting the demand of the user for variable password.

[0012] The utility model further sets up: still include outer wheel, outer wheel and adjusting wheel synchronous rotation, be provided with locking through groove on outer wheel, be provided with the moving link that moves outward on intermediate wheel and with outer wheel inner wall opposite, locking through groove has with moving link opposite locking state, moving link can realize its outward movement through spring, impeller and intermediate wheel always abut, can realize through spring or fixed mechanism.

[0013] Through adopting above-mentioned technical scheme, when needing to reset password, rotating outer wheel, thereby driving adjusting wheel to rotate, so that the push block on adjusting wheel pushes intermediate wheel to move along lock body, thereby making impeller separate from code disc, until moving link opposite locking through groove, at this time, moving link enters locking through groove, outer wheel cannot rotate, and then can change unlocking password on code disc, after changing, use other workpiece, stick out moving link from locking through groove, and then can reverse rotate outer wheel, through setting moving link and locking through groove, make that when changing password, impeller will not rotate randomly, influence password change.

[0014] The utility model further sets up: still include elastic disc, code disc inner periphery annularly be provided with a plurality of annular grooves, elastic disc and impeller synchronous rotation, be provided with elastic sheet on elastic disc.

[0015] Through adopting above-mentioned technical scheme, when user rotates code disc, the annular groove of code disc inner periphery will pass through elastic sheet on elastic disc, every rotation a scale, elastic sheet will be stuck into or slide out annular groove, produce obvious " click " sound and hand feeling, make user can accurately perceive and confirm code disc rotation scale position, greatly facilitate the input and alignment process of password, improve the accuracy of operation and user experience, especially in poor light or without visual aid is especially practical. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the overall structural schematic drawing of the utility model;

[0017] Figure 2 It is the explosion drawing of the utility model whole;

[0018] Figure 3 It is the sectional view of the utility model whole;

[0019] Figure 4 It is the structural schematic drawing of intermediate wheel in the utility model.

[0020] In the diagram: 1. Lock body; 11. Locking cavity; 12. Sliding groove; 13. Fixed opening; 2. Rotating component; 21. Code plate; 22. Impeller; 23. Receiving groove; 24. Fixed block; 25. Fixed groove; 26. Elastic disc; 27. Elastic sheet; 28. Annular groove; 3. Locking rod; 31. Annular free-spinning groove; 4. Adjusting wheel; 41. Push block; 5. Intermediate wheel; 51. Sliding oblique groove; 6. Outer wheel; 61. Locking through groove; 7. Moving rod; 8. Ball. Detailed Implementation

[0021] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] like Figures 1-4 As shown, this utility model discloses a ball-operated combination lock with a rotatable locking lever, including a lock body 1, a rotating component 2, and a locking lever 3. The rotating component 2 is rotatably mounted on the lock body 1. The lock body 1 has a locking cavity 11 for inserting the locking lever 3 and also includes a ball 8. The rotating component 2 has a receiving groove 23 for accommodating the ball 8. The lock body 1 has a sliding groove 12 for sliding the ball 8. The sliding groove 12 has a fixed opening 13 extending to communicate with the locking cavity 11, and the ball 8 partially enters the locking cavity 11 through the fixed opening 13. The locking lever 3 has an annular rotatable groove 31 adapted to the shape of the ball 8. The rotating component 2 has an unlocked state and a locked state. In the unlocked state, the receiving groove 23 is opposite to the sliding groove 12, the ball 8 partially enters the receiving groove 23, and the fixed opening 13 is empty of the ball 8. In the locked state, the receiving groove 23 is offset from the sliding groove 12, and the ball 8 partially enters the fixed opening 13.

[0024] When the password is incorrect, the rotating member 2 rotates, but the accommodating groove 23 inside it is misaligned with the sliding groove 12 on the lock body 1, forcing the ball 8 to be clamped into the fixed opening 13 of the sliding groove 12 and the annular idling groove 31 of the key rod, at this time, forcibly rotating the key rod, the ball 8 only rolls in the annular idling groove 31, achieving the idling of the locking rod 3, when the password is correct, at this time, the rotating member 2 rotates to the accommodating groove 23 aligns with the sliding groove 12, the ball 8 can be partially retracted into the accommodating groove 23, and the key rod 3 can be pulled out of the locking cavity 11, achieving unlocking; the rolling of the ball 8 in the annular idling groove 31 replaces the rigid locking, converts the excess torsion into idling, effectively protects the ball 8, the rotating member 2 and the internal structure of the lock body 1, greatly improves the anti-violence operation ability and overall service life of the lock, improves the reliability, and can adjust the angle direction of the locking rod 3.

[0025] The rotating member 2 includes a code disc 21 and an impeller 22, the impeller 22 is arranged on the lock body 1, and the impeller 22 is provided with a fixed block 24, the code disc 21 is provided with a fixed groove 25 matched with the fixed block 24, the code disc 21 is arranged on the outer periphery of the impeller 22, and the fixed groove 25 and the fixed block 24 constitute the rotation of the code disc 21 to the impeller 22, and the accommodating groove 23 is arranged on the inner periphery of the impeller 22, when the user rotates the code disc 21, the fixed block 24 on the impeller 22 is driven through the fixed groove 25 on the code disc 21, so as to synchronously drive the impeller 22 to rotate, and the accommodating groove 23 is arranged on the impeller 22, so that the rotation of the impeller 22 directly determines whether the ball 8 can align with the sliding groove 12, that is, the password of the lock is determined by the rotation angle of the impeller 22; the split structure is adopted, so that the password control part and the user operation part can be designed separately, the design flexibility is increased, at the same time, the structure is convenient for assembly and maintenance, the cooperation of the fixed block 24 and the fixed groove 25 provides reliable power transmission, and the accuracy and consistency of password change are ensured.

[0026] The adjusting wheel 4 and the intermediate wheel 5 are arranged on one side of the lock body 1, the intermediate wheel 5 is located between the vane wheel 22 and the adjusting wheel 4, the intermediate wheel 5 is provided with a sliding inclined groove 51, the adjusting wheel 4 is provided with a pushing block 41, the pushing block 41 is in abutment with the sliding inclined groove 51, and the sliding inclined groove 51 and the pushing block 41 constitute the pushing of the intermediate wheel 5 on the lock body 1 by the rotating adjusting wheel 4. When it is necessary to change the password, the adjusting wheel 4 is rotated, the pushing block 41 on the adjusting wheel 4 acts on the sliding inclined groove 51 of the intermediate wheel 5, due to the inclined surface effect of the inclined groove, the rotary motion is converted into linear motion, the intermediate wheel 5 is pushed to move axially, and then the vane wheel 22 is pushed to slide on the lock body 1, the initial angular position of the vane wheel 22 relative to the code disc 21 is changed, and thus the password is reset. The rotary motion is converted into linear motion by the sliding inclined groove 51 and the pushing block 41, the password reset can be completed without disassembling the lock body 1, the practicability and user experience of the lock are greatly improved, and the demand of users for variable password is met.

[0027] The outer wheel 6 is further included, the outer wheel 6 rotates synchronously with the adjusting wheel 4, the outer wheel 6 is provided with a locking through groove 61, the intermediate wheel 5 is provided with a moving rod 7 moving outward and opposite to the inner wall of the outer wheel 6, the locking through groove 61 has a locking state opposite to the moving rod 7, the moving rod 7 can move outward by a spring, the vane wheel 22 is always in abutment with the intermediate wheel 5, and can be achieved by a spring or a fixing mechanism, when it is necessary to reset the password, the outer wheel 6 is rotated, so that the adjusting wheel 4 is driven to rotate, the pushing block 41 on the adjusting wheel 4 pushes the intermediate wheel 5 to move along the lock body 1, so that the vane wheel 22 is separated from the code disc 21, until the moving rod 7 is opposite to the locking through groove 61, at this time, the moving rod 7 enters the locking through groove 61, the outer wheel 6 cannot rotate, and then the unlocking password on the code disc 21 can be changed, after the change is completed, other workpieces are used to push the moving rod 7 out of the locking through groove 61, and then the outer wheel 6 can be reversely rotated, and the moving rod 7 and the locking through groove 61 are arranged, so that the vane wheel 22 cannot be rotated at will when the password is changed, and the change of the password is affected.

[0028] The elastic disc 26 is further included, a plurality of annular grooves 28 are arranged in the inner circumferential direction of the code disc 21, the elastic disc 26 rotates synchronously with the vane wheel 22, the elastic disc 26 is provided with an elastic sheet 27, when a user rotates the code disc 21, the annular groove 28 in the inner circumferential direction of the code disc 21 passes through the elastic sheet 27 on the elastic disc 26, the elastic sheet 27 is clamped into or slides out of the annular groove 28 every rotation of a scale, and an obvious “click” sound and hand feeling are generated, so that the user can accurately perceive and confirm the scale position of the rotation of the code disc 21, the input and alignment process of the password is greatly facilitated, the accuracy of operation and user experience are improved, and the method is particularly practical in poor light or without visual assistance.

[0029] Working process: when the password is not correct and the lock is in the locked state, the user tries to rotate the locking rod 3, because the accommodating groove 23 of the impeller 22 is misaligned with the sliding groove 12 on the lock body 1, the ball 8 is limited in the fixed opening 13 of the sliding groove 12 and partially protrudes in the locking cavity 11, and contacts the annular idle groove 31 on the locking rod 3; at this time, the torsional force is applied, the ball 8 rolls in the annular idle groove 31, the locking rod 3 idles, cannot drive the rotating part 2, and thus the excessive torsional force is dissipated, protecting the internal mechanism from being damaged; when the password is correct and the lock is in the unlocked state, the rotating part 2 rotates to the accommodating groove 23 aligned with the sliding groove 12, the correct locking rod 3 can extrude the ball 8, so that it is partially retracted in the accommodating groove 23, thereby being separated from the fixed opening 13; at this time, rotating the locking rod 3 can drive the rotating part 2 to rotate synchronously through the ball 8, realizing the unlocking; through the cooperation of the adjusting wheel 4, the intermediate wheel 5 and the sliding inclined groove 51, rotating the adjusting wheel 4 can be converted into the linear motion of the intermediate wheel 5, pushing the impeller 22 to move to realize the password change; the outer wheel 6 and the locking groove 61 thereon cooperate with the moving rod 7 on the intermediate wheel 5, locking the intermediate wheel 5 when changing the password, preventing the impeller 22 from rotating accidentally.

Claims

1. A ball-operated combination lock with a rotatable locking lever, comprising a lock body (1), a rotating component (2), and a locking lever (3), wherein the rotating component (2) is rotatably mounted on the lock body (1), and the lock body (1) has a locking cavity (11) for the locking lever (3) to be inserted, characterized in that: The rotating member (2) is provided with a containing groove (23) for containing the ball (8), the lock body (1) is provided with a sliding groove (12) for the ball (8) to slide, the sliding groove (12) has a fixed opening (13) extending to the locking cavity (11) and the ball (8) partially enters the locking cavity (11) through the fixed opening (13), the locking rod (3) is provided with an annular idle groove (31) matched with the shape of the ball (8), the rotating member (2) has an unlocking state and a locking state, the unlocking state is that the containing groove (23) is opposite to the sliding groove (12) and the ball (8) partially enters the containing groove (23), and the fixed opening (13) is free of the ball (8); the locking state is that the containing groove (23) is misaligned with the sliding groove (12) and the ball (8) partially enters the fixed opening (13).

2. A lock bar overrideable, ball detent combination lock according to claim 1 wherein: The rotating member (2) includes a code disc (21) and an impeller (22), the impeller (22) is arranged on the lock body (1) and is provided with a fixed block (24), the code disc (21) is provided with a fixed groove (25) matched with the fixed block (24), the code disc (21) is arranged on the outer periphery of the impeller (22), and the fixed groove (25) and the fixed block (24) constitute the rotation of the code disc (21) to the impeller (22), and the containing groove (23) is arranged on the inner periphery of the impeller (22).

3. A lock bar overrideable, ball detent combination lock according to claim 2 wherein: The adjusting wheel (4) and the intermediate wheel (5) are arranged on one side of the lock body (1), the intermediate wheel (5) is located between the impeller (22) and the adjusting wheel (4), the intermediate wheel (5) is provided with a sliding inclined groove (51), the adjusting wheel (4) is provided with a pushing block (41) and the pushing block (41) abuts against the sliding inclined groove (51), and the sliding inclined groove (51) and the pushing block (41) constitute the pushing of the rotating adjusting wheel (4) to the intermediate wheel (5) on the lock body (1).

4. A lock bar overrideable, ball detent combination lock according to claim 3 wherein: The outer wheel (6) is provided with a locking through groove (61), the intermediate wheel (5) is provided with a moving rod (7) moving outward and abutting against the inner wall of the outer wheel (6), and the locking through groove (61) has a locking state opposite to the moving rod (7).

5. A lock bar overrideable, ball detent combination lock according to claim 2 wherein: The code disc (21) is provided with a plurality of annular grooves (28) on the inner periphery, the elastic disc (26) rotates synchronously with the impeller (22), and the elastic disc (26) is provided with an elastic sheet (27).

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