A padlock that uses a combination lock or lock cylinder for unlocking.

Abstract

This invention discloses a padlock that uses either a combination lock or a lock cylinder for unlocking. It includes a housing and a locking cord. The housing contains a lock cylinder, a combination wheel assembly, a rotating block, a stop block, a lock block, a movable block, a steel ball, a top block, and a top block spring. The lock block is rotatably connected to the movable block. The stop block is located on one side of the lock block. The steel ball is located between one end of the lock block and the lock cord. The lock cylinder drives the rotating block to rotate, and the rotating block restricts the swing of the stop block. The movable block drives the lock block to move. The top block is located directly below one end of the lock cord, and the top block spring abuts against the bottom of the top block. This invention employs two unlocking methods: combination lock unlocking and key unlocking. The lock cylinder and combination wheel assembly are arranged parallel to each other within the housing. The two moving states of the lock block are used to move the steel ball. Both unlocking methods use very few parts, resulting in a simple internal lock structure and convenient assembly of components. The lock cylinder and stop block form abutment, enhancing its anti-pry capability.

Description

Technical Field

[0001] This invention relates to padlocks, and more particularly to a padlock that is unlocked using a combination lock or a lock cylinder. Background Technology

[0002] A combination padlock has a locking cord and internally contains a combination component and a lock cylinder component, the latter including the lock cylinder itself. Combination padlocks can be unlocked through both combination unlocking and lock cylinder unlocking. In existing technology, structures where the combination component and lock cylinder component are arranged parallel to each other within the housing are relatively rare. An existing sliding padlock, according to Chinese utility model patent application number 2018202437242, primarily achieves unlocking through both combination unlocking and lock cylinder unlocking, but the unlocking positions are separate. Combination unlocking removes the restriction on the main cable end, while lock cylinder unlocking removes the restriction on the secondary cable end. In the locked state, two locking blocks are required to restrain both ends of the cable. This results in numerous internal connecting parts, a complex structure, and the locking blocks are easily damaged by strong external forces, leading to low pry resistance. Summary of the Invention

[0003] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this invention is to provide a padlock that is unlocked by a password or lock cylinder.

[0004] The objective of this invention is achieved through the following technical solution: a padlock that uses a combination lock or lock cylinder for unlocking, comprising a housing and a locking cord. The housing contains a lock cylinder, a combination wheel assembly, a rotating block, a stop block, a lock block, a movable block, a steel ball, a top block, and a top block spring. The lock block is rotatably connected to the movable block. The stop block is located on one side of the lock block. The steel ball is located between the lock block and one end of the locking cord. The lock cylinder can drive the rotating block to rotate. After the rotating block rotates, it can remove the obstruction of the stop block. In the locked state, the rotating block can restrict the swing of the stop block, and the lock block cannot swing to make way or move downwards to make way.

[0005] The top block is located directly below one end of the locking cord, and the top block spring abuts against the bottom of the top block. After the lock cylinder is unlocked or the combination is used for unlocking, the top block spring can push the top block upwards, causing the locking cord to move. After the locking cord is freed from the steel ball restraint, one end of the locking cord can pop out from the housing. The housing includes a bottom shell and a top shell, with the top shell covering and fixing the bottom shell.

[0006] When the lock cylinder is unlocked, the key turns the lock cylinder, causing the rotating block to rotate. The rotating block removes the restriction on the swing of the stop block, and the lock block removes the restriction on the movement of the steel ball. The top block, under the action of the top block spring, pushes the lock rope upward, and one end of the lock rope can pop out from the housing. When locking, the popped end of the lock rope is aligned with the lock rope hole in the housing and inserted. Pressing the lock rope causes the end of the lock rope with the steel ball limiting groove to push the top block down and press the top block spring. When the steel ball limiting groove is aligned with the steel ball, the steel ball is pushed by the stop block and embedded in the steel ball limiting groove. The key turns the lock cylinder, causing the abutment rod on the rotating block to abut against the stop block, thus locking the lock.

[0007] The cipher wheel assembly includes an axle and a cipher wheel;

[0008] When unlocking with a password, entering the correct password on the password wheel pushes the axle, causing the movable block to move downwards. The movable block then moves the locking block, releasing the restriction on the movement of the steel ball. The top block, under the action of the top block spring, pushes the locking rope upwards, allowing one end of the locking rope to pop out from the housing. When locking, aligning the popped end of the locking rope with the locking rope hole in the housing and pressing it down, the end of the locking rope with the steel ball limiting groove pushes the top block downwards, pressing down the top block spring. When the steel ball limiting groove aligns with the steel ball, the movable block, under the action of the spring force, pushes the locking block upwards. The locking block pushes the steel ball towards the steel ball limiting groove and embeds it within the groove, restricting the movement of the locking rope and achieving locking.

[0009] As an improvement of the padlock of the present invention that uses a password or lock cylinder for unlocking, one end of the wheel axle is provided with a button, the button is provided with a guide post that is movably connected to the movable block, the lower end of the movable block is provided with an inclined guide groove, the guide post is embedded in the guide groove, pressing the button can drive the movable block to move downward, and one end of the button extends out from the side of the housing.

[0010] As an improvement of the padlock of the present invention that uses a password or lock cylinder for unlocking, the upper end of the movable block is provided with a first step, the first step is provided with a connecting post, one end of the lock block is provided with a second step, the second step is provided with a connecting hole, the connecting post passes through the connecting hole, and the first step abuts against the second step.

[0011] As an improvement to the padlock of this invention that uses a password or lock cylinder for unlocking, one end of the rotating block is provided with a connecting protrusion, and the edge of the other end is provided with a stop rod. The connecting protrusion is connected to the lock cylinder, and the stop rod can abut against the stop block. A groove is provided in the middle of one side of the stop block, and the stop rod abuts against the groove. A stop spring is provided at the bottom of the stop block. When the stop block is reset, it is pushed back to its original position by the stop spring.

[0012] As an improvement of the padlock of the present invention that uses a password or lock cylinder for unlocking, the front and back of the housing are provided with password wheel protrusion holes, and part of the password wheel can protrude from the front and back of the housing. The password wheel can be rotated on both the front and back of the housing to achieve password unlocking.

[0013] As an improvement of the padlock of the present invention that uses a password or lock cylinder for unlocking, one end of the lock rope is provided with a steel ball limiting groove, and part of the steel ball can be embedded in the steel ball limiting groove to restrict the release of the lock rope. The upper end of the housing is provided with two lock rope insertion holes spaced apart, and the two ends of the lock rope are respectively inserted through the lock rope insertion holes.

[0014] As an improvement of the padlock of the present invention that uses a combination lock or lock cylinder for unlocking, the combination wheel assembly further includes three adjustment wheels, an adjustment switch, a spring, and a spring plate. The adjustment wheels are mounted on the wheel axle, and each adjustment wheel is fitted with a combination wheel. The adjustment switch is located at the other end of the wheel axle. The spring is mounted on the wheel axle, and the spring plate is located on the side of the combination wheel. When the correct combination lock is entered on the combination wheel, it can push the wheel axle to move. One end of the adjustment switch extends out of one side of the housing.

[0015] As an improvement of the padlock of the present invention that uses a password or lock cylinder for unlocking, the lower end of the top block is provided with a spring stop plate, and the top block spring abuts against the spring stop plate; the top block can block the steel ball when the lock rope is unlocked.

[0016] The housing has a top block mounting groove, and one end of the top block mounting groove has a top block limiting plate. The top block is accommodated in the top block mounting groove, and the upper end of the top block can pass through the middle of the top block limiting plate and be connected to one end of the locking rope. In the unlocked state, the top block spring can push the top block to rise. When the top block rises to a certain height, the spring plate can restrict the movement of the top block limiting plate.

[0017] The beneficial effects of this invention are as follows: This invention employs two unlocking methods: password unlocking and key unlocking. The lock cylinder and password wheel assembly are arranged parallel to each other within the housing. The steel ball is positioned using two movement states of the lock block. When the lock cylinder is unlocked, the lock block swings to allow the steel ball sufficient space to move and be positioned. When the password is unlocked, pressing the button horizontally moves the movable block downwards, which in turn moves the lock block downwards to allow the steel ball sufficient space to move. Both unlocking methods use very few parts, resulting in a simple internal lock body structure, convenient assembly of components, and a resistive contact between the lock cylinder and the stop block, thus enhancing pry resistance. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention;

[0019] Figure 2 This is the front view of the present invention after the outer shell has been removed;

[0020] Figure 3 This is a perspective view of the present invention after the outer shell has been removed;

[0021] Figure 4 This is a diagram of the internal structure of the present invention;

[0022] Figure 5 This is an exploded view of the present invention;

[0023] The attached diagram is labeled as follows: 1. Housing, 2. Locking rope, 3. Lock cylinder, 4. Combination wheel assembly, 5. Rotating block, 6. Stop block, 7. Locking block, 8. Moving block, 9. Steel ball, 10. Top block, 11. Top block spring, 12. Spring stop plate, 13. Top block mounting groove, 14. Top block limiting stop plate, 21. Steel ball limiting groove, 41. Wheel axle, 42. Combination wheel, 43. Button, 44. Guide post, 45. Code wheel, 46. Code switch, 47. Spring, 48. Spring piece, 51. Connecting protrusion, 52. Push rod, 61. Groove, 62. Stop block spring, 71. Second step, 72. Connecting hole, 81. Guide groove, 82. First step, 83. Connecting post, 101. Bottom shell, 102. Top shell, 103. Combination wheel extension hole. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0025] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component* under a specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0026] Furthermore, the use of terms such as "first" and "second" in this invention 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 with "first" or "second" may explicitly or implicitly include at least one of that feature. 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 invention.

[0027] like Figures 1-5 As shown, a padlock that uses a combination lock or lock cylinder for unlocking includes a housing 1 and a locking cord 2. The housing 1 contains a lock cylinder 3, a combination wheel assembly 4, a rotating block 5, a stop block 6, a lock block 7, a movable block 8, a steel ball 9, a top block 10, and a top block spring 11. The lock block 7 is rotatably connected to the movable block 8. The stop block 6 is located on one side of the lock block 7. The steel ball 9 is located between the lock block 7 and one end of the locking cord 2. The lock cylinder 3 can drive the rotating block 5 to rotate. After the rotating block 5 rotates, it can remove the obstruction of the stop block 6.

[0028] In the locked state, rotating block 5 can restrict the swing of stop block 6, and locking block 7 cannot swing to make way or move downwards to make way.

[0029] The top block 10 is located directly below one end of the locking cord 2, and the top block spring 11 abuts against the bottom of the top block 10. After the lock cylinder 3 is unlocked or unlocked by combination, the top block spring 11 can push the top block 10 upward and push the locking cord 2 to move. After the locking cord 2 is freed from the steel ball restraint, one end of the locking cord 2 can pop out from the housing 1. The housing 1 includes a bottom housing 101 and a top housing 102, with the top housing 102 covering and fixing the bottom housing 101.

[0030] When the lock cylinder 3 is unlocked, the key turns the lock cylinder 3, causing the rotating block 5 to rotate. The rotating block 5 removes the restriction on the swing of the stop block 6, and the lock block 7 removes the restriction on the movement of the steel ball 9. The top block 10, under the action of the top block spring 11, pushes the lock rope 2 upward, and one end of the lock rope 2 can pop out from the housing 1. When locking, the popped end of the lock rope 2 is aligned with the lock rope hole of the housing 1 and inserted. The lock rope 2 is pressed down, and the end of the lock rope 2 with the steel ball limiting groove pushes the top block 10 down to press down the top block spring 11. When the steel ball limiting groove is aligned with the steel ball 9, the steel ball 9 is pushed into the steel ball limiting groove by the stop block 6. The key turns the lock cylinder 3, causing the abutment rod on the rotating block 5 to abut against the stop block 6, thus locking the lock.

[0031] The cipher wheel assembly 4 includes an axle 41 and a cipher wheel 42;

[0032] When unlocking, the correct password is entered on the password wheel 42. This pushes the wheel axle 41, causing the movable block 8 to move downwards. The movable block 8 then moves the locking block 7, releasing the restriction on the movement of the steel ball. The top block 10, under the action of the top block spring 11, pushes the locking rope 2 upwards, allowing one end of the locking rope 2 to pop out from the housing 1. When locking, the popped end of the locking rope 2 is aligned with the locking rope hole in the housing 1 and inserted. Pressing the locking rope 2 causes the end with the steel ball limiting groove to push the top block 10 down, pressing down the top block spring 11. When the steel ball limiting groove aligns with the steel ball 9, the movable block 8, under the action of the spring force, pushes the locking block 7 upwards. The locking block 7 pushes the steel ball 9 towards the steel ball limiting groove and embeds it within the groove, restricting the movement of the locking rope 2 and achieving locking.

[0033] Preferably, one end of the axle 41 is provided with a button 43, and the button 43 is provided with a guide post 44 that is movably connected to the movable block 8. The lower end of the movable block 8 is provided with an inclined guide groove 81, and the guide post 44 is embedded in the guide groove 81. Pressing the button 43 can drive the movable block 8 to move downward. One end of the button 44 extends out from the side of the housing 1.

[0034] Preferably, the upper end of the movable block 8 is provided with a first step 82, and a connecting post 83 is provided on the first step 82. One end of the locking block 7 is provided with a second step 71, and a connecting hole 72 is provided on the second step 71. The connecting post 83 passes through the connecting hole 72, and the first step 82 abuts against the second step 71.

[0035] Preferably, one end of the rotating block 5 is provided with a connecting protrusion 51, and the edge of the other end is provided with a push rod 52. The connecting protrusion 51 is connected to the lock cylinder 3, and the push rod 52 can abut against the stop block 6. The middle of one side of the stop block 6 is provided with a groove 61, and the push rod 52 abuts against the groove 61. The bottom of the stop block 6 is provided with a stop spring 62. When the stop block 6 is reset, the stop block 6 is pushed to reset by the stop spring 62.

[0036] Preferably, the front and back of the housing 1 are provided with password wheel protrusion holes 103, and part of the password wheel 42 can protrude from the front and back of the housing 1. The password wheel can be rotated from the front and back of the housing 1 to unlock the password.

[0037] Preferably, one end of the locking rope 2 is provided with a steel ball limiting groove 21, and part of the steel ball 9 can be embedded in the steel ball limiting groove 21 to restrict the release of the locking rope 2. The upper end of the housing 1 is provided with two locking rope insertion holes at intervals, and both ends of the locking rope 2 are inserted through the locking rope insertion holes respectively.

[0038] Preferably, the code wheel assembly 4 further includes three code-changing wheels 45, a code-changing switch 46, a spring 47, and a spring 48. The code-changing wheels 45 are mounted on the axle 41, and each code-changing wheel 45 is fitted with a code wheel 42. The code-changing switch 46 is located at the other end of the axle 41. The spring 47 is mounted on the axle 41, and the spring 48 is located on the side of the code wheel 42. When the correct code is entered on the code wheel 42, it can push the axle 41 to move. One end of the code-changing switch 46 extends out of one side of the housing 1.

[0039] Preferably, the lower end of the top block 10 is provided with a spring baffle 12, and the top block spring 11 abuts against the spring baffle 12; the top block 10 can block the steel ball 9 when the lock rope is unlocked.

[0040] The housing 1 has a top block mounting groove 13, and a top block limiting plate 14 is provided at one end of the top block mounting groove 13. The top block 10 is accommodated in the top block mounting groove 13, and the upper end of the top block 10 can pass through the middle of the top block limiting plate 14 and be connected to one end of the locking rope 2. In the unlocked state, the top block spring 11 can push the top block 10 to rise. When the top block 10 rises to a certain height, the spring plate 12 can form a restriction with the top block limiting plate 14.

[0041] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A padlock unlocked by a combination lock or lock cylinder, comprising a housing and a locking cord, characterized in that, The housing contains a lock cylinder, a combination wheel assembly, a rotating block, a stop block, a lock block, a movable block, a steel ball, a top block, and a top block spring. The lock block is rotatably connected to the movable block. The stop block is located on one side of the lock block. The steel ball is located between the lock block and one end of the lock rope. The lock cylinder can drive the rotating block to rotate. The rotating block can restrict the up and down movement of the stop block. The movable block can drive the lock block to move. The top block is located directly below one end of the lock rope, and the top block spring abuts against the bottom of the top block. When locked, the lock block cannot swing or move downwards to make room.

2. The padlock using a combination lock or lock cylinder for unlocking according to claim 1, characterized in that, When the lock cylinder is unlocked, the key turns the lock cylinder, causing the rotating block to rotate. The rotating block removes the restriction on the up and down movement of the stop block, and the lock block removes the restriction on the movement of the steel ball. The top block, under the action of the top block spring, pushes the lock rope upward, and one end of the lock rope can pop out from the housing.

3. The padlock using a password or lock cylinder for unlocking according to claim 1, characterized in that, The combination wheel assembly includes an axle and a combination wheel. When unlocking, the correct combination is entered on the combination wheel, which pushes the axle to move the movable block downward. The movable block moves the lock block, which removes the restriction on the movement of the steel ball. The top block is pushed upward by the top block spring, and one end of the lock rope can pop out from the housing.

4. The padlock using a combination lock or lock cylinder for unlocking according to claim 3, characterized in that, One end of the axle is provided with a button, and the button is provided with a guide post that is movably connected to the movable block. The lower end of the movable block is provided with an inclined guide groove, and the guide post is embedded in the guide groove. Pressing the button can drive the movable block to move downward. One end of the button extends out from the side of the housing.

5. The padlock using a combination lock or lock cylinder for unlocking according to claim 4, characterized in that, The upper end of the movable block is provided with a first step, and a connecting post is provided on the first step. One end of the locking block is provided with a second step, and a connecting hole is provided on the second step. The connecting post passes through the connecting hole, and the first step abuts against the second step.

6. The padlock unlocked by a combination lock or lock cylinder according to claim 1, characterized in that, One end of the rotating block is provided with a connecting protrusion, and the edge of the other end is provided with a push rod. The connecting protrusion is connected to the lock cylinder, and the push rod can push against the stop block. A groove is provided in the middle of one side of the stop block, and the push rod pushes against the groove. A stop block spring is provided at the bottom of the stop block.

7. The padlock using a combination lock or lock cylinder for unlocking according to claim 3, characterized in that, The front and back of the housing are provided with password wheel protrusion holes, and part of the password wheel can protrude from the front and back of the housing. The password wheel can be rotated from both the front and back of the housing to unlock the device with a password.

8. The padlock unlocked by a combination lock or lock cylinder according to claim 1, characterized in that, One end of the locking rope is provided with a steel ball limiting groove, and part of the steel ball can be embedded in the steel ball limiting groove to restrict the release of the locking rope. The upper end of the housing is provided with two locking rope insertion holes spaced apart, and the two ends of the locking rope are respectively inserted through the locking rope insertion holes.

9. The padlock using a combination lock or lock cylinder for unlocking according to claim 3, characterized in that, The code wheel assembly also includes three code-switching wheels, a code-switching switch, a spring, and a spring plate. The code-switching wheels are mounted on the axle, and each code-switching wheel is fitted with a code wheel. The code-switching switch is located at the other end of the axle. The spring is mounted on the axle, and the spring plate is located on the side of the code wheel. When the correct code is entered on the code wheel, it can push the axle to move. One end of the code-switching switch extends out of one side of the housing.

10. The padlock unlocked by a combination lock or lock cylinder according to claim 1, characterized in that, The lower end of the top block is provided with a spring stop plate, and the top block spring abuts against the spring stop plate; The housing is provided with a top block mounting groove, and a top block limiting baffle is provided at one end of the top block mounting groove. The top block is accommodated in the top block mounting groove, and the upper end of the top block can pass through the middle of the top block limiting baffle and be connected to the lock rope.

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