Coded lock convenient to adjust

Abstract

The utility model discloses a coded lock convenient to adjust, and belongs to the technical field of coded locks. A coded lock convenient to adjust comprises a lock body. The lock beam is inserted into the lock body in a limited manner; the coded lock is arranged in the lock body, and the coded lock is used for controlling the lock beam to be opened or closed; the coded lock comprises a code assembly and a shaft center, and the code assembly is arranged on the shaft center in a sleeving mode and rotationally connected with the shaft center. The shaft center comprises a shaft rod, a spring sleeve, a clamp spring and a spring; the shaft rod penetrates through the password assembly and is rotationally connected with the password assembly. The spring sleeve is arranged at one end of the shaft rod in a sleeving mode and abuts against the wall body of the password assembly. The two ends of the shaft rod are sleeved with the clamping springs respectively, the clamping springs at the two ends abut against the password assembly, and the clamping spring at the same end with the spring sleeve is arranged in the spring sleeve. The spring is arranged in the spring sleeve, one end of the spring abuts against the clamping spring, and the other end of the spring abuts against the inner wall of the lock body. The rotating position of the password wheel can be more accurate, and unlocking adjustment is smoother.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of combination lock, more particularly relates to a combination lock convenient to adjust. BACKGROUND

[0002] Combination lock is a common security device, which can be used in various occasions. Combination lock usually uses a number combination as a password, and the user can only unlock it by inputting the correct number sequence.

[0003] For example, the patent number CN202322708682.9 of our company, a combination lock against prying, the combination lock is locked and opened by the combination wheel, control panel and lock tongue. The combination lock of this patent controls the lock tongue by the flap at the front end of the control panel. When the combination wheels of the combination lock are all in the correct number position, the control panel will be linked with the combination wheels, so that the flap on the control panel is placed outside the lock tongue, and then the lock tongue can be pressed inward to achieve unlocking. The combination wheel of this patent is provided with a snap spring on one side, and the spring is abutted on the other side of the snap spring, so that the pressing force of the combination wheel from one end to the other end of the spring gradually decreases, so that the rotation feeling of the combination wheel closer to the spring side is stronger, and the rotation feeling of the whole combination wheel is affected, and the service life of the combination wheel is reduced. UTILITY MODEL CONTENTS

[0004] The utility model provides a combination lock convenient to adjust, which can realize more accurate rotation position of combination wheel and more smooth unlocking adjustment.

[0005] The combination lock convenient to adjust comprises a lock body, a lock beam, a combination lock, a combination assembly and a shaft. The lock beam is connected with the lock body. The combination lock is arranged in the lock body and used for controlling the opening or closing of the lock beam. The combination assembly is sleeved on the shaft and connected with the shaft in a rotating mode. The shaft comprises a shaft rod, a spring sleeve, a snap spring and a spring. The shaft rod is arranged through the combination assembly and connected with the combination assembly in a rotating mode. The spring sleeve is sleeved on one end of the shaft rod and abutted against the wall of the combination assembly. The snap spring is sleeved on both ends of the shaft rod. The snap springs on both ends are abutted against the combination assembly. The snap spring on the same end as the spring sleeve is arranged in the spring sleeve. The spring is arranged in the spring sleeve and abutted against the snap spring on one end and the inner wall of the lock body on the other end.

[0006] As a further improvement of the utility model, the password assembly includes multiple wheel bodies, multiple digital codes arranged around the wheel bodies, an unlocking slot and a pressing slot in the wheel body, the unlocking slot is arranged on the wall of the wheel body along the radial direction, and the unlocking slot corresponds to one digital code; the pressing slot is arranged on both sides of the unlocking slot along the radial direction, and multiple pressing slots are arranged around the center of the wheel body, and the multiple pressing slots correspond to the remaining multiple digital codes; the control plate further includes an unlocking tooth, multiple unlocking teeth are arranged at equal intervals, the mounting positions of the unlocking teeth and the wheel body correspond to each other, and the unlocking tooth and the unlocking slot match each other; the lock gate is arranged in the lock body and is arranged on both sides close to the lock beam.

[0007] As a further improvement of the utility model, the unlocking slot is arranged to be higher than the pressing slot; when the unlocking tooth is arranged in the unlocking slot, the control plate is moved to make the lock gate have a moving space and control the opening of the lock beam; when the unlocking tooth is arranged in the pressing slot, the control plate is limited to make the lock gate not have a moving space and control the locking of the lock beam.

[0008] As a further improvement of the utility model, the lock body is provided with a limiting slot, and the limiting slot is located in the middle of the lock body; the control plate further includes a control limiting slot, and the positions of the limiting slot and the control limiting slot correspond to each other under normal circumstances; the control limiting slot includes an abutting column and a control plate spring, the abutting column is located at the upper end of the control limiting slot, and the control plate spring is arranged on the outer periphery of the abutting column; under normal circumstances, the upper end of the control plate spring abuts against the upper end face of the abutting column, and the lower end of the control plate spring abuts against the lower end face of the control limiting slot and the limiting slot.

[0009] As a further improvement of the utility model, the lock body is provided with a lock gate slot, the lock gate slot is located on both sides of the limiting slot, the opening inner diameter of the lock gate slot matches the lock gate, the control plate further includes an abutting portion, the abutting portion is located on both side edges of the upper end of the control plate, the abutting portion always abuts against the lock gate, the abutting portions on both sides form opposite gentle slopes relative to the edge of the control plate, and the upper end radius of the gentle slope of the abutting portion matches the edge radius of the lock gate.

[0010] As a further improvement of the utility model, the password assembly includes a password wheel and an inner wheel; the password wheel and the inner wheel are connected through a tooth groove, and rotating the password wheel can drive the inner wheel to rotate synchronously; multiple password wheels are arranged on the shaft, and the multiple password wheels are arranged at equal intervals; the password wheel includes a limiting tooth groove, and the limiting tooth groove is arranged in the middle wall of the password wheel; the number of the inner wheels matches the number of the password wheels, and the inner wheel includes a limiting tooth column, multiple limiting tooth columns are arranged on one side of the middle of the inner wheel along the axial direction, and the limiting tooth column matches the limiting tooth groove.

[0011] As a further improvement of the utility model, the lock body is further provided with a lock wheel groove, the lock wheel groove includes an unlocking cavity and a rotating cavity, multiple unlocking cavities and rotating cavities are arranged, the unlocking cavities and the rotating cavities are arranged alternately, the unlocking cavities match the password wheels, and the rotating cavities match the inner wheels.

[0012] As a further improvement of the utility model, the password wheel comprises a plurality of digital codes and limiting grooves, the limiting grooves are located between each digital code, further comprising an elastic sheet, the elastic sheet is arranged on the outer side of the lock body, the elastic sheet comprises an abutting end, the abutting end is tightly abutted to the limiting groove, the abutting end and the limiting groove are matched with each other, and the abutting end is made of a ductile material.

[0013] As a further improvement of the utility model, only one correct digital code exists among the plurality of digital codes, and the remaining digital codes are all incorrect digital codes, and the lock beam has the ability of unlocking and opening when the correct digital codes corresponding to the password assembly are all located at the unified unlocking position.

[0014] As a further improvement of the utility model, a mounting groove is arranged on the outer side end of the lock body, the mounting groove and the elastic sheet are matched with each other, and the elastic sheet and the mounting groove are detachably connected.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] Compared with the prior art, the utility model has the beneficial effects that: BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0018] Figure 2 It is a structure schematic view of the utility model in which a plurality of components are laid flat;

[0019] Figure 3 It is a side view three-dimensional structure schematic view of the utility model;

[0020] Figure 4 It is a three-dimensional structure schematic view of the utility model Figure 3 It is an enlarged structure schematic view of position A in the utility model;

[0021] Figure 5 It is a structure schematic view of the utility model;

[0022] Figure 6 It is a structure schematic view of the utility model in which a plurality of components are laid flat;

[0023] Figure 7 It is a three-dimensional structure schematic view of the utility model;

[0024] Figure 8The utility model discloses a control panel and inside part's plane structure schematic diagram;

[0025] Figure 9 The utility model discloses a remove control panel's inside shell plane structure schematic diagram;

[0026] Figure 10 It is the three-dimensional structure schematic diagram of the lock beam of the utility model password lock after unlocking.

[0027] Mark explanation in drawing:

[0028] Shell 1, lock beam 2, lock tooth 21, password lock 3, password wheel 31, limit recess 311, limit tooth groove 312, inner wheel 32, unlocking groove 321, abutting groove 322, limit tooth column 323, axle center 33, spring sleeve 331, clamping spring 332, spring 333, first inner shell 4, lock beam cavity 41, lock wheel groove 42, limit groove 43, lock gate groove 44, second inner shell 5, installation groove 51, control panel 6, unlocking tooth 61, control position groove 62, abutting column 621, control panel spring 622, abutting portion 63, lock gate 7, elastic sheet 8, abutting end 81. Specific implementation

[0029] Specific embodiment one: please refer to Figures 1-10 A kind of password lock of being convenient for adjustment, including shell 1, lock beam 2, password lock 3, inner shell assembly, control panel 6, lock gate 7 and elastic sheet 8.Shell 1 is the external part of password lock whole, and inner shell assembly is clamped in shell 1, lock beam 2 is limitedly connected in inner shell assembly, and shell 1 is set on inner shell assembly and the outer end of lock beam 2, and lock beam 2 is movably connected with shell 1.Password lock 3 is located at the lower end of inner shell assembly, and password lock 3 is embedded in inner shell assembly.Control panel 6 and lock gate 7 are located in inner shell assembly, and control panel 6 is linked with lock gate 7.Elastic sheet 8 is located at the outer end of one side of inner shell assembly, and elastic sheet 8 is detachably connected with the outer end of inner shell assembly.The inner side of lock beam 2 is oppositely provided with lock tooth 21, and lock tooth 21 is matched with lock gate 7, so as to limit lock tooth 21 by lock gate 7.

[0030] Specifically, the password lock 3 comprises a password wheel 31, an inner wheel 32 and a shaft 33. The password wheel 31 and the inner wheel 32 are sleeved on the shaft 33, and the password wheel 31 and the inner wheel 32 are rotationally connected with the shaft 33. The password wheel 31 is connected with the inner wheel 32 through a tooth groove, and rotating the password wheel 31 can drive the inner wheel 32 to rotate synchronously. The password wheel 31 is provided with a plurality of password wheels 31 on the shaft 33, and the plurality of password wheels 31 are arranged at equal intervals. The password wheel 31 comprises a plurality of digital codes, a limiting groove 311 and a limiting tooth groove 312, and the limiting groove 311 is located between each digital code. The plurality of digital codes on the password wheel 31 only have one correct digital code, and the remaining digital codes are all incorrect digital codes. When the plurality of password wheels 31 corresponding to the correct digital code are all at a unified unlocking position, the lock beam 2 has the ability to be unlocked and opened. The limiting tooth groove 312 is provided in the middle wall of the password wheel 31. The number of the inner wheel 32 is corresponding to the number of the password wheel 31, and the inner wheel 32 comprises an unlocking groove 321, a pressing groove 322 and a limiting tooth column 323. The unlocking groove 321 is provided in the wall of the inner wheel 32 along the radial direction, and the unlocking groove 321 corresponds to one correct digital code. The pressing groove 322 is provided on both sides of the unlocking groove 321 along the radial direction, and the opening height of the unlocking groove 321 is greater than that of the pressing groove 322. A plurality of pressing grooves 322 are provided around the center of the inner wheel 32, and the plurality of pressing grooves 322 correspond to the plurality of incorrect digital codes. A plurality of limiting tooth columns 323 are provided on one side of the middle part of the inner wheel 32 along the axial direction, and the limiting tooth columns 323 are matched with the limiting tooth grooves 312. The shaft 33 comprises a shaft rod, a spring sleeve 331, a snap spring 332 and a spring 333. One end of the shaft rod abuts against the inner wall on one side of the inner shell assembly, and the other end of the shaft rod abuts against the inner wall on the other side of the inner shell assembly through the spring 333. The spring sleeve 331 is sleeved on the outside of the spring 333, and the spring sleeve 331 is fixedly connected with the inner wheel 32. The snap spring 332 is sleeved on both sides of the shaft rod, and one side of the snap spring 332 abuts against the password wheel 31, and the other side of the snap spring 332 abuts against the inner wheel 32, so that the plurality of password wheels 31 and the plurality of inner wheels 32 are clamped between the two snap springs 332. One end of the spring 333 abuts against the snap spring on the same side, and the other end of the spring 333 abuts against the inner wall of the inner shell assembly, so that the pressing force of the plurality of password wheels 31 and the plurality of inner wheels 32 is the same.

[0031] Specifically, the inner shell assembly includes a first inner shell 4 and a second inner shell 5, the first inner shell 4 is arranged opposite to the second inner shell 5, and the first inner shell 4 and the second inner shell 5 are both provided with a lock beam cavity 41, a lock wheel groove 42, a limiting groove 43 and a lock gate groove 44. The lock beam cavities 41 are located on both sides of the first inner shell 4 and the second inner shell 5, and the lock beam cavities 41 are matched with the lock beams 2, so that the lock beams 2 are embedded in the lock beam cavities 41. The lock wheel grooves 42 are located at the lower end of the first inner shell 4 and the second inner shell 5, and the lock wheel grooves 42 are arranged through the lower wall of the inner shell assembly, so that the password wheel 31 can partially protrude out of the shell 1 to display the digital code. The lock wheel groove 42 includes an unlocking cavity and a rotating cavity, and a plurality of unlocking cavities and rotating cavities are arranged, the unlocking cavities and the rotating cavities are staggered, the unlocking cavities are matched with the password wheel 31, and the rotating cavities are matched with the inner wheel 32. The limiting grooves 43 are located in the middle of the first inner shell 4 and the second inner shell 5, and the lock gate grooves 44 are located on both sides of the limiting grooves 43. The opening diameter of the lock gate groove 44 is matched with the lock gate 7, and the lock gate groove 44 is arranged in abutment with the lock beam cavity 41, so that the lock gate 7 can open or close the lock beam 2 along the inner cavity of the lock gate groove 44. The outer end surface of the second inner shell 5 is further provided with a mounting groove 51, the mounting groove 51 is matched with the spring sheet 8, and the spring sheet 8 is detachably connected with the mounting groove 51.

[0032] Specifically, the control plate 6 is clamped in the middle of the first inner shell 4 and the second inner shell 5, the control plate 6 includes an unlocking tooth 61, a control position groove 62 and an abutment portion 63, the unlocking teeth 61 are arranged at equal intervals and a plurality of unlocking teeth 61 are arranged, and the unlocking teeth 61 correspond to the mounting positions of the inner wheel 32, and the unlocking teeth 61 are matched with the unlocking grooves 321. When the unlocking grooves 321 of the inner wheel 32 driven by the password wheel 31 are located directly below the corresponding unlocking tooth 61, the positions of the plurality of password wheels 31 corresponding to the correct digital code are the unified unlocking positions. In the normal state, the position of the control position groove 62 corresponds to the limiting groove 43, the control position groove 62 includes an abutment column 621 and a control plate spring 622, the abutment column 621 is located at the upper end of the control position groove 62, and the control plate spring 622 is sleeved on the outer periphery of the abutment column 621. In the normal state, the upper end of the control plate spring 622 abuts against the upper end surface of the abutment column 621, and the lower end of the control plate spring 622 abuts against the lower end surface of the control position groove 62 and the limiting groove 43. The abutment portions 63 are respectively located on both sides of the upper end of the control plate 6, the abutment portions 63 always abut against the lock gate 7, the abutment portions 63 on both sides form opposite gentle slopes on the edge of the control plate 6, and the uppermost end of the slope of the abutment portion 63 is matched with the edge of the lock gate 7, so that the lock gate 7 abuts against the control plate 6 and moves along the gentle slope of the abutment portion 63.

[0033] Specifically, the lock gate 7 is in a cylindrical shape in this embodiment, the outer periphery of the lock gate 7 is matched with the inner periphery of the lock gate groove 44, and the lock gate 7 is slidably connected with the lock gate groove 44.

[0034] Specifically, the elastic sheet 8 comprises an abutting end 81 abutting against the limiting groove 311, the abutting end 81 and the limiting groove 311 are matched with each other, and the abutting end 81 has certain toughness, so that the password wheel 31 is subjected to the abutting force once for each rotation of a digital code.

[0035] Working principle:

[0036] When the password lock is unlocked, the unlocking tooth corresponds to the unlocking slot, the lock beam is pulled out of the lock tooth, and the lock beam is moved along the lock beam slot, so that the control plate is moved downward and the unlocking tooth can enter the unlocking slot. When the control plate is moved downward, the control plate spring is abutted against the lower end surface of the limiting groove to provide a top pressing force to the control plate. When the lock beam is inserted into the lock beam cavity and the lock tooth is positioned in the lock beam slot, the control plate spring is no longer pressed by the lock beam wall body and is reset to rebound, so that the abutting parts on both sides of the control plate move upward and push the lock beam into the lock tooth to close the lock beam. Finally, the password wheel is rotated to make the unlocking tooth and the unlocking slot no longer correspond, and the locking of the password lock is completed.

Claims

1. A password lock convenient to adjust, comprising a lock body; a lock beam (2) which is limitedly inserted with the lock body; a password lock (3) which is arranged in the lock body and is used to control the opening or closing of the lock beam (2); characterized in that the password lock (3) comprises a password assembly and a shaft (33), the password assembly is sleeved on the shaft (33), and the password assembly is rotationally connected with the shaft (33); the shaft (33) comprises a shaft rod, a spring sleeve (331), a snap spring (332) and a spring (333); the shaft rod is arranged through the password assembly and rotationally connected with the password assembly; the spring sleeve (331) is sleeved on one end of the shaft rod and abuts against the wall body of the password assembly; the snap springs (332) are respectively sleeved on both ends of the shaft rod, the snap springs (332) on both ends are both arranged in abutment with the password assembly, wherein the snap spring (332) on the same end as the spring sleeve (331) is arranged in the spring sleeve (331); the spring (333) is arranged in the spring sleeve (331) and one end of the spring (333) abuts against the snap spring (332), and the other end of the spring (333) abuts against the inner wall of the lock body.

2. A combination lock according to claim 1, wherein: the password assembly comprises a plurality of wheel bodies, a plurality of digital codes are arranged around the wheel bodies, an unlocking groove (321) and an abutting groove (322) are arranged in the wheel body, the unlocking groove (321) is arranged on the wall body of the wheel body in the radial direction, and the unlocking groove (321) corresponds to one digital code; the abutting grooves (322) are arranged on both sides of the unlocking groove (321) in the radial direction, and a plurality of abutting grooves (322) are arranged around the center of the wheel body, the plurality of abutting grooves (322) correspond to the remaining plurality of digital codes; the control plate (6) further comprises an unlocking tooth (61), a plurality of unlocking teeth (61) are arranged at equal intervals, the mounting positions of the unlocking teeth (61) and the wheel bodies correspond to each other, the unlocking teeth (61) and the unlocking grooves (321) are matched with each other; the lock gate (7) is arranged in the lock body and arranged on both sides close to the lock beam (2).

3. A combination lock according to claim 2, wherein: The unlocking groove (321) is arranged to be higher than the abutting groove (322); when the unlocking tooth (61) abuts into the unlocking groove (321), the control plate (6) moves to make the lock gate (7) have a moving space and control the opening of the lock beam (2); when the unlocking tooth (61) abuts against the abutting groove (322), the control plate (6) is limited to make the lock gate (7) not have a moving space and control the locking of the lock beam (2).

4. The combination lock of claim 2 wherein: The lock body is internally provided with a limiting slot (43) located in the middle of the lock body; the control plate (6) further comprises a control limiting slot (62), and in normal conditions, the limiting slot (43) and the control limiting slot (62) are in position correspondence with each other; the control limiting slot (62) comprises an abutting column (621) and a control plate spring (622), the abutting column (621) is located at the upper end of the control limiting slot (62), and the control plate spring (622) is sleeved on the outer periphery of the abutting column (621); in normal conditions, the upper end of the control plate spring (622) abuts against the upper end face of the abutting column (621), and the lower end of the control plate spring (622) abuts against the lower end face of the control limiting slot (62) and the limiting slot (43).

5. A combination lock according to claim 4, wherein: The lock body is internally provided with a lock gate slot (44) located on both sides of the limiting slot (43), and the opening inner diameter of the lock gate slot (44) is matched with the lock gate (7); the control plate (6) further comprises an abutting portion (63) located on both side edges of the upper end of the control plate (6), the abutting portion (63) always abuts against the lock gate (7), and the abutting portions (63) on both sides form opposite gentle slopes on the edge of the control plate (6), and the uppermost end of the gentle slope of the abutting portion (63) is matched with the edge arc of the lock gate (7).

6. The adjustable combination lock of claim 1, wherein: The password assembly comprises a password wheel (31) and an inner wheel (32); the password wheel (31) and the inner wheel (32) are connected through a tooth groove, and rotating the password wheel (31) can drive the inner wheel (32) to rotate synchronously; a plurality of password wheels (31) are arranged on the shaft (33); the password wheel (31) comprises a limiting tooth groove (312) which is arranged in the middle wall of the password wheel (31); the number of the inner wheels (32) is matched with the number of the password wheels (31), and the inner wheel (32) comprises a limiting tooth column (323), a plurality of limiting tooth columns (323) are arranged on one side of the middle of the inner wheel (32) in the axial direction, and the limiting tooth column (323) is matched with the limiting tooth groove (312).

7. A combination lock according to claim 6 wherein: The lock body is further provided with a lock wheel groove (42), the lock wheel groove (42) comprises a plurality of unlocking cavities and rotating cavities, the unlocking cavities and the rotating cavities are arranged alternately, the unlocking cavities are matched with the password wheels (31), and the rotating cavities are matched with the inner wheels (32).

8. A combination lock of claim 6 wherein: The password wheel (31) comprises a plurality of digital codes and a limiting recess (311), and the limiting recess (311) is located between each digital code; the assembly further comprises a spring piece (8), the spring piece (8) is arranged on the outer side of the lock body, the spring piece (8) comprises an abutting end (81), the abutting end (81) is tightly arranged in the limiting recess (311), the abutting end (81) is matched with the limiting recess (311), and the abutting end (81) is made of a ductile material.

9. A password lock for easy adjustment according to claim 2 or 8, characterized in that: Only one of the plurality of digital codes is a correct digital code, and the remaining digital codes are incorrect digital codes; when the password assembly corresponding to the correct digital code is in a unified unlocking position, the lock beam (2) has the ability to unlock and open.

10. The combination lock of claim 8, wherein: An installation groove (51) is arranged on one outer side of the lock body, the installation groove (51) is matched with the spring piece (8), and the spring piece (8) is detachably connected with the installation groove (51).

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