U-shaped password anti-theft lock

Abstract

The utility model discloses a U-shaped coded anti-theft lock which structurally comprises a lock body and a lock beam, the lock beam is of a U-shaped structure, a plurality of lock grooves are formed in the inner sides of two vertical portions of the lock beam in an array mode, lock holes for the two vertical portions of the lock beam to be inserted are formed in the lock body, and containing channels are formed in the inner side walls of the two lock holes. Lock rods matched with the lock grooves are movably arranged in the containing channels, a containing groove communicated with the two containing channels is formed in the center of the top face of the lock body, and a coded lock mechanism used for controlling the deviating ends of the two lock rods to stretch into or retreat from the lock holes is arranged in the containing groove.

Description

Technical Field

[0001] The utility model relates to the technical field of locks, and more specifically, to a U-shaped password anti-theft lock. Background Art

[0002] The U-shaped lock is a very commonly used lock in daily life. At present, a Chinese patent with the publication (announcement) number CN220687042U discloses a smart password U-shaped lock, which includes a lock beam, a lock body and an upper cover. The inner sides of both ends of the lock beam are provided with side lock grooves, the surface of the lock body is provided with a shell, and the two sides inside the shell are provided with lock beam holes and lock tongue holes. The first lock tongue and the second lock tongue are plugged into the lock tongue holes, and a control component located inside the lock body is provided above the first lock tongue and the second lock tongue. The smart password U-shaped lock has a built-in Bluetooth module, and the user unlocks the lock after passing the verification based on the mobile phone APP; the technical problem to be solved by the above-mentioned smart password U-shaped lock is that "the U-shaped lock needs to be unlocked with a key every time it is used, and it is inconvenient to use frequently and carry", but the smart U-shaped lock needs to be equipped with electronic components such as motors, control components and fingerprint modules, which makes the production and use costs of the lock relatively high. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a U-shaped password anti-theft lock to solve the above technical problems.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a U-shaped password anti-theft lock, comprising a lock body and a lock beam, the lock beam is in a U-shaped structure and a plurality of lock grooves are arranged in an array on the inner sides of two vertical parts, a lock hole for inserting the two vertical parts of the lock beam is arranged on the lock body, an accommodating channel is arranged on the inner side walls of the two lock holes, a lock rod adapted to the lock groove is movably arranged in the accommodating channel, an accommodating groove connected to the two accommodating channels is formed at the center of the top surface of the lock body, and a password lock mechanism is arranged in the accommodating groove for controlling the two locking rods to extend into or out of the lock hole at their opposite ends.

[0005] The utility model is further configured as follows: the password lock mechanism includes a fixed shell and the fixed shell is formed with an insertion portion adapted to the accommodating groove, a accommodating recess is formed on the top of the fixed shell, an accommodating through hole is formed at the bottom center of the accommodating recess, a rotating seat adapted to the accommodating recess and the accommodating through hole is rotatably arranged in the fixed shell, and an adjusting rod that cooperates with the two locking rods extends from the lower end of the rotating seat.

[0006] The utility model is further configured as follows: two guide grooves are correspondingly arranged at the bottom of the outer peripheral surface of the adjusting rod, the groove depth of the guide groove gradually increases in the clockwise direction, and a matching head adapted to the guide groove is formed at the inner end of the locking rod.

[0007] The utility model is further configured as follows: a groove is opened on one side of the accommodating channel, a sliding rod is arranged inside the groove and a slider is arranged outside the sliding rod, one end of the slider extends into the accommodating channel and is fixedly connected to the locking rod, and a spring member is arranged outside the sliding rod.

[0008] The utility model is further configured as follows: a limiting portion is extended from the outer circumferential surface of the fixed shell insertion portion, a mounting hole communicated with the accommodating through hole is opened on the side wall of the limiting portion, and a limiting groove is opened at a position of the rotating seat corresponding to the accommodating through hole.

[0009] The utility model is further configured as follows: an installation recess is formed on the top surface of the rotating seat, a plurality of code wheels are rotatably arranged in the installation recess, a limit rod is commonly penetrated through the inner ring of each code wheel, a movable through hole adapted to the limit rod is opened on one side of the fixed shell, a rotating sleeve is connected to the upper side of the fixed shell and a through window is opened on the rotating sleeve at a corresponding position of each code wheel, and a limit hole adapted to the limit rod is opened on the inner circumference of the rotating sleeve.

[0010] The utility model is further configured as follows: two clamping holes are correspondingly formed in the installation concave position, and two clamping heads adapted to the clamping holes are correspondingly arranged on the inner side of the rotating sleeve.

[0011] To sum up, the utility model has the following beneficial effects: the two vertical parts of the lock beam are inserted into the two lock holes corresponding to the lock body, and the password lock control mechanism controls the two lock rods to extend into the lock holes synchronously. In the above state, the lock rods and the lock grooves form a limited locking to complete the locking of the lock body and the lock beam. When it is necessary to release the lock between the lock beam and the lock body or adjust the use position of the lock beam, the two lock rods can be controlled to exit the lock holes through the password lock mechanism. The utility model has a simple structure, is easy to use, and has low production and use costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a schematic cross-sectional view of the internal structure of the lock body of the utility model;

[0015] Figure 3 It is a schematic cross-sectional view of the structure of the password lock mechanism of the utility model;

[0016] Figure 4 It is a distribution diagram of the adjusting rod and the guide groove of the utility model.

[0017] Figure numerals: 1. lock body; 10. lock beam; 11. lock groove; 12. lock hole; 13. accommodating channel; 14. lock rod; 15. matching head; 16. groove; 17. slide rod; 18. slide block; 19. spring member; 2. accommodating groove; 3. fixed shell; 30. insertion part; 31. accommodating recess; 32. accommodating through hole; 33. limiting part; 34. assembly hole; 35. movable through hole; 4. rotating seat; 40. adjusting rod; 41. guide groove; 42. limiting groove; 43. installation recess; 44. password wheel; 45. limiting rod; 46. clamping hole; 5. rotating sleeve; 50. through window; 51. limiting hole; 52. clamping head. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-4 As shown, a U-shaped password anti-theft lock of an embodiment of the utility model includes a lock body 1 and a lock beam 10. The lock beam 10 is in a U-shaped structure and a plurality of lock grooves 11 are arranged in an array on the inner sides of two vertical parts. A lock hole 12 for inserting the two vertical parts of the lock beam 10 is arranged on the lock body 1. An accommodating channel 13 is arranged on the inner side walls of the two lock holes 12. A lock rod 14 adapted to the lock groove 11 is movably arranged in the accommodating channel 13. An accommodating groove 2 connected to the two accommodating channels 13 is formed at the center of the top surface of the lock body 1. The accommodating groove 2 has a password lock mechanism built in it for controlling the two locking rods 14 to extend into or out of the lock hole 12 at their away ends.

[0020] When in use, the two vertical parts of the lock beam 10 are inserted into the two lock holes 12 corresponding to the lock body 1. After the lock beam 10 is adjusted to the required position, the two lock rods 14 are controlled by the password lock control mechanism to synchronously extend into the lock holes 12. In the above state, the lock rods 14 and the lock grooves 11 form a limited locking, completing the locking of the lock body 1 and the lock beam 10; when it is necessary to release the lock between the lock beam 10 and the lock body 1 or adjust the use position of the lock beam 10, the two lock rods 14 are controlled by the password lock mechanism to withdraw from the lock holes 12; the utility model has a simple structure, is easy to use, and has low production and use costs.

[0021] The combination lock mechanism includes a fixed shell 3 and the fixed shell 3 is formed with an insertion portion 30 adapted to the accommodating groove 2, a accommodating recess 31 is formed on the top of the fixed shell 3, and an accommodating through hole 32 is formed at the center of the bottom of the accommodating recess 31, a rotating seat 4 adapted to the accommodating recess 31 and the accommodating through hole 32 is rotatably arranged in the fixed shell 3, and an adjusting rod 40 adapted to the two locking rods 14 is extended from the lower end of the rotating seat 4; two guide grooves 41 are correspondingly arranged at the bottom of the outer circumferential surface of the adjusting rod 40, and the groove depth of the guide groove 41 gradually increases in the clockwise direction, and a matching head 15 adapted to the guide groove 41 is formed on the inner end of the locking rod 14; a groove 16 is opened on one side of the accommodating channel 13, a sliding rod 17 is arranged inside the groove 16, and a slider 18 is arranged outside the sliding rod 17, one end of the slider 18 extends into the accommodating channel 13 and is fixedly connected to the locking rod 14, and a spring member 19 is arranged on the outer ring of the sliding rod 17.

[0022] When in use, in the initial state, that is, the two locking rods 14 are in the locked state (the two locking rods 14 extend into the lock hole 12), at this time, the inner ends of the two locking rods 14 are respectively located in the two first matching grooves, and the slider 18 presses the spring member 19 when the locking rod 14 is extended and causes the spring member 19 to be in the energy storage state. When it is necessary to control the two locking rods 14 to switch to the unlocked state (the two locking rods 14 exit the through hole), the control rotating seat 4 is rotated forward and drives the adjusting rod 40 to rotate. The rotation of the adjusting rod 40 drives the two guide grooves 41 to change the position, causing the matching heads 15 at the inner ends of the two locking rods 14 to correspond to the deeper position of the guide groove 41. At this time, the slider 18 drives the locking rod 14 to exit the lock hole 12 due to the energy release of the spring member 19, and the lock is unlocked;

[0023] When the lock needs to be restored to the locked state, it is only necessary to control the rotating seat 4 to rotate in the opposite direction and drive the adjusting rod 40 to rotate, thereby driving the two guide grooves 41 to change position, so that the matching heads 15 at the inner ends of the two locking rods 14 correspond to the shallower position of the guide grooves 41. At this time, the slider 18 overcomes the force of the spring member 19 to drive the locking rod 14 to extend out of the lock hole 12, and the lock is locked.

[0024] A limiting portion 33 is extended from the outer circumference of the insertion portion 30 of the fixed housing 3 . A mounting hole 34 communicating with the accommodating through hole 32 is defined on the side wall of the limiting portion 33 . A limiting groove 42 is defined at a position corresponding to the accommodating through hole 32 on the rotating seat 4 .

[0025] When in use, the external stopper (screw or bolt) is screwed into the assembly hole 34, and the inner end of the stopper extends into the accommodating through hole 32 and forms a stopper with the stopper groove 42 of the rotating seat 4. The stopper limits the rotation path of the rotating seat 4, so that the rotating seat 4 can only rotate along the track to achieve locking or unlocking;

[0026] See the instruction manual Figure 3 The fixed shell 3 is fixedly mounted on the lock body 1 through external fasteners.

[0027] A mounting recess 43 is formed on the top surface of the rotating seat 4, and a plurality of code wheels 44 are rotatably arranged in the mounting recess 43. A limiting rod 45 is commonly penetrated through the inner ring of each code wheel 44. A movable through hole 35 adapted to the limiting rod 45 is opened on one side of the fixed shell 3. A rotating sleeve 5 is connected to the upper side of the fixed shell 3, and a through window 50 is opened on the rotating sleeve 5 at a position corresponding to each code wheel 44. A limiting hole 51 adapted to the limiting rod 45 is opened on the inner circumference of the rotating sleeve 5.

[0028] When in use, each code wheel 44 is rotatably arranged in the mounting recess 43, and a number of numbers are arranged equidistantly and circumferentially on the outer wall of the code wheel 44, and a through hole for the limit rod 45 to move is opened on the inner wall of the code wheel 44, and a movable through groove is opened on the side wall of the through hole at a position corresponding to one of the numbers, and the outer circumferential surface of the limit rod 45 is provided with stop teeth at the position corresponding to each code wheel 44, and each stop tooth is arranged along the same linear array;

[0029] Among them, a movable sleeve is fixedly provided on the inner wall of the left side of the rotating seat 4, the left end of the limit rod 45 extends into the movable sleeve, and a reset spring is fixedly connected between the end of the limit rod 45 and the movable sleeve. In the initial state, the right end of the limit rod 45 passes through and extends out of the movable through hole 35. When the limit rod 45 is in the extended state, it is limited and clamped with the limit hole 51 on the inner circumference of the rotating sleeve 5. At this time, the pairs of blocking teeth of each password wheel 44 cannot rotate the rotating sleeve 5 and cannot drive the rotating seat 4 to rotate, so the lock cannot be unlocked;

[0030] When it is necessary to unlock the lock, each code wheel 44 is rotated to the corresponding position according to the set code. At this time, the active through grooves on the inner sides of each code wheel 44 are located at the corresponding positions of the stop teeth on the outer sides of the limit rod 45. At this time, the blocking of the stop teeth by each code wheel 44 disappears, allowing the limit rod 45 to move freely. At this time, when the rotating sleeve 5 is rotated, the limit rod 45 will adaptively retract into the active through hole 35 and will not cause any obstruction to the rotation of the rotating sleeve 5 (the reset spring is in the energy storage state at this time), and the rotating sleeve 5 can be freely rotated to unlock the lock; when the lock needs to be locked, the rotating sleeve 5 is rotated back to the initial position, at this time the energy storage of the reset spring is released and the right end of the limit rod 45 is prompted to extend out of the active through hole 35 again and enter the limit hole 51 on the inner wall of the rotating sleeve 5, at this time, the code wheels 44 are disrupted, and at this time, each code wheel 44 resumes the blocking of the stop teeth, that is, the right end of the limit rod 45 cannot adaptively retract, and the rotating sleeve 5 cannot rotate at this time, thus completing the locking of the lock;

[0031] The rotating sleeve 5 is provided with through windows 50 at the positions corresponding to the code wheels 44 to facilitate the adjustment and rotation of the code wheels 44 .

[0032] Two clamping holes 46 are correspondingly formed in the installation recess 43 , and two clamping heads 52 adapted to the clamping holes 46 are correspondingly arranged on the inner side of the rotating sleeve 5 .

[0033] When in use, when installing the rotating sleeve 5, align the clamping head 52 with the two clamping holes 46 and insert it. The clamping head 52 is made of elastic rubber material and is clamped with the clamping hole 46 by interference fit. In daily use, the rotating sleeve 5 drives the rotating seat 4 to rotate forward or reverse to control the locking or unlocking of the lock. When the rotating sleeve 5 needs to be removed, the rotating sleeve 5 can be pulled out upward with force; preferably, the cooperation between the clamping head 52 and the clamping hole 46 can also be connected and cooperated by a snap fit.

[0034] It should also be pointed out that the terms used in the present invention, such as “front”, “rear”, “vertical”, “horizontal”, etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention.

[0035] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A U-shaped password anti-theft lock, comprising a lock body (1) and a lock beam (10), characterized in that: The lock beam (10) is of a U-shaped structure and a plurality of lock grooves (11) are arranged in an array on the inner sides of the two vertical parts; a lock hole (12) is arranged on the lock body (1) for the two vertical parts of the lock beam (10) to be inserted; an accommodating channel (13) is arranged on the inner side walls of the two lock holes (12); a lock rod (14) adapted to the lock groove (11) is movably arranged in the accommodating channel (13); a accommodating groove (2) connected to the two accommodating channels (13) is formed at the center of the top surface of the lock body (1); a password lock mechanism is built in the accommodating groove (2) for controlling the two lock rods (14) to extend into or withdraw from the lock hole (12) at their opposite ends.

2. The U-shaped password anti-theft lock according to claim 1, characterized in that: The combination lock mechanism comprises a fixed shell (3) and the fixed shell (3) is formed with an insertion portion (30) adapted to the receiving groove (2); a receiving recess (31) is formed at the top of the fixed shell (3); a receiving through hole (32) is formed at the center of the bottom of the receiving recess (31); a rotating seat (4) adapted to the receiving recess (31) and the receiving through hole (32) is rotatably arranged in the fixed shell (3); an adjusting rod (40) adapted to the two locking rods (14) extends from the lower end of the rotating seat (4).

3. The U-shaped password anti-theft lock according to claim 2, characterized in that: Two guide grooves (41) are correspondingly arranged at the bottom of the outer peripheral surface of the adjustment rod (40), and the groove depth of the guide groove (41) gradually increases in the clockwise direction. The inner end of the locking rod (14) is formed with a matching head (15) adapted to the guide groove (41).

4. The U-shaped password anti-theft lock according to claim 3, characterized in that: A groove (16) is provided on one side of the accommodating channel (13), a sliding rod (17) is arranged inside the groove (16), and a slider (18) is arranged outside the sliding rod (17), one end of the slider (18) extends into the accommodating channel (13) and is fixedly connected to the locking rod (14), and a spring member (19) is sleeved on the outer ring of the sliding rod (17).

5. The U-shaped password anti-theft lock according to claim 2, characterized in that: A limiting portion (33) extends from the outer circumferential surface of the insertion portion (30) of the fixed shell (3), a side wall of the limiting portion (33) is provided with an assembly hole (34) that is in communication with the accommodating through hole (32), and a limiting groove (42) is provided on the rotating seat (4) at a position corresponding to the accommodating through hole (32).

6. The U-shaped password anti-theft lock according to claim 5, characterized in that: The top surface of the rotating seat (4) is formed with a mounting recess (43), a plurality of code wheels (44) are rotatably arranged in the mounting recess (43), a limiting rod (45) is commonly penetrated through the inner ring of each code wheel (44), a movable through hole (35) adapted to the limiting rod (45) is provided on one side of the fixed shell (3), a rotating sleeve (5) is connected to the upper side of the fixed shell (3), and a through window (50) is provided on the rotating sleeve (5) at a position corresponding to each code wheel (44), and a limiting hole (51) adapted to the limiting rod (45) is provided on the inner circumference of the rotating sleeve (5).

7. The U-shaped password anti-theft lock according to claim 6, characterized in that: Two clamping holes (46) are correspondingly formed in the installation recess (43), and two clamping heads (52) adapted to the clamping holes (46) are correspondingly arranged on the inner side of the rotating sleeve (5).

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