Padlock

Abstract

The utility model provides a padlock, and relates to the technical field of locks. The padlock comprises a lock body, a lock beam, a lock tongue, a lock cylinder and a plurality of marble assemblies, wherein a first lock beam hole and a second lock beam hole are formed in the lock body; the lock beam comprises a connecting part, a beam body part and a locking part which are connected in sequence; the end part of the connecting part is positioned in the first lock beam hole and is telescopically and rotatably connected with the lock body; the locking part can be driven to be located in the second lock beam hole or retreat from the second lock beam hole through stretching and retracting of the connecting part in the first lock beam hole. The spring bolt is movably arranged in the lock body so as to be located at a locking position and an unlocking position. When the spring bolt is located at the locking position, the locking part is limited to retreat from the second lock beam hole; the lock cylinder is arranged in the lock body, and the lock cylinder is configured to rotate to drive the spring bolt to retract so as to be located at an unlocking position; a lock hole is formed in the lock cylinder, and a plurality of rotating grooves are formed in the inner wall of the lock hole in the rotating axial direction of the lock cylinder. And the lock pins of the multiple marble assemblies are all located in the spiral grooves, so that the safety is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of locks, and more particularly, to a padlock. Background Art

[0002] With the continuous progress of science and technology, there are more and more lock products for security access control, and they are becoming more and more comprehensive; for example, access control products with fingerprint recognition function, eye iris recognition function, face recognition function, etc. have entered the market, but such locks usually have a relatively high price and a small audience; while padlocks based on the principle of pin tumbler locks have a large audience and are widely used.

[0003] As a security access control product with mechanical self-locking function, padlocks are widely used in residential doors, protective institutions, and other places that need to implement access control systems such as enterprises, institutions, and special institutions. When someone enters, the lock needs to be opened to push the door open and then locked randomly to protect the safety of equipment and personnel in a specific place.

[0004] However, although such mechanical access control lock products can currently achieve a one-to-one correspondence between the lock body and the key, their security protection ability still needs to be improved.

[0005] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Utility Model

[0006] The purpose of the present disclosure is to provide a padlock with high security.

[0007] According to one aspect of the present disclosure, there is provided a padlock, which includes:

[0008] A lock body, on which a first lock beam hole and a second lock beam hole are provided;

[0009] A lock beam, which includes a connecting portion, a beam body portion and a locking portion connected in sequence. The end of the connecting portion is located in the first lock beam hole and is rotatably connected to the lock body in a telescopic manner; through the telescoping of the connecting portion in the first lock beam hole, the locking portion can be driven to be located in the second lock beam hole or withdrawn from the second lock beam hole;

[0010] A lock tongue, which is movably arranged in the lock body to be in a locking position and an unlocking position; when the lock tongue is in the locking position, it forms a limit to the withdrawal of the locking portion from the second lock beam hole;

[0011] A lock core is provided in a lock body. The lock core is configured to drive a lock tongue to retract to an unlocked position by rotation. A lock hole is provided on the lock core, and a plurality of spiral grooves are provided on the inner wall of the lock hole along the axial direction of the rotation of the lock core.

[0012] A plurality of pin assemblies, and the lock pins of the plurality of pin assemblies are all located in the spiral grooves.

[0013] In an exemplary embodiment of the present disclosure, in the circumferential direction of the rotation of the lock core, the distances between two adjacent spiral grooves among the plurality of spiral grooves are different.

[0014] In an exemplary embodiment of the present disclosure, in the axial direction of the rotation of the lock core, a plurality of pin assemblies for restricting the rotation of the lock core are provided on the lock body; in the circumferential direction of the rotation of the lock core, a plurality of pin assemblies for restricting the rotation of the lock core are provided on the lock body.

[0015] In an exemplary embodiment of the present disclosure, in the axial direction of the rotation of the lock core, the axial distances between at least some adjacent pin assemblies are different.

[0016] In an exemplary embodiment of the present disclosure, in the axial direction of the rotation of the lock core, at least three groups of pin assemblies are evenly distributed in the axial direction of the rotation of the lock core, and the middle pin assembly is correspondingly arranged at the middle position in the axial direction of the lock core.

[0017] In an exemplary embodiment of the present disclosure, in the circumferential direction of the rotation of the lock core, the circumferential distances between at least some adjacent pin assemblies are different.

[0018] In an exemplary embodiment of the present disclosure, in the circumferential direction of the rotation of the lock core, the included angles between at least three groups of pin assemblies are 90° to each other.

[0019] In an exemplary embodiment of the present disclosure, in the axial direction of the rotation of the lock core and in the circumferential direction of the rotation of the lock core, the number of pin assemblies is greater than six.

[0020] In an exemplary embodiment of the present disclosure, a central column is provided in the lock hole.

[0021] In an exemplary embodiment of the present disclosure, a protective spring is further provided at the bottom of the lock hole, and the protective spring is sleeved on the central column.

[0022] The padlock provided by the present disclosure has a keyhole on the lock core, and a plurality of spiral grooves are provided on the inner wall of the keyhole along the axial direction of the rotation of the lock core; the lock pins of a plurality of ball assemblies are all located in the spiral grooves, so the key adopts a screw-in unlocking method rather than a straight-in insertion unlocking method; the ball assemblies are hidden inside the spiral grooves of the lock core and cannot be directly seen with the naked eye from the outside of the keyhole, and even with special tools, it is difficult to touch the ball assemblies, and it is very difficult to unlock most of the ball assemblies to the open state, which greatly improves the safety performance of the lock core.

[0023] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. Description of the Drawings

[0024] The drawings herein are incorporated into the specification and constitute a part of this specification, showing embodiments in accordance with the present disclosure, and are used together with the specification to explain the principles of the present disclosure. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0025] Figure 1 Schematic diagram of the padlock provided by an embodiment of the present disclosure.

[0026] Figure 2 Schematic diagram of the locking tongue mechanism provided by an embodiment of the present disclosure.

[0027] Figure 3 Schematic diagram of the key provided by an embodiment of the present disclosure.

[0028] Figure 4 Schematic diagram of the distribution of the ball assemblies provided by the first embodiment of the present disclosure.

[0029] Figure 5 Schematic diagram of the distribution of the ball assemblies provided by the second embodiment of the present disclosure.

[0030] Figure 6 Schematic diagram of the distribution of the ball assemblies provided by the third embodiment of the present disclosure.

[0031] Figure 7 Schematic diagram of the distribution of the ball assemblies provided by the fourth embodiment of the present disclosure.

[0032] Figure 8 Schematic diagram of the distribution of the ball assemblies provided by the fifth embodiment of the present disclosure.

[0033] Figure 9 Schematic diagram of the distribution of the ball assemblies provided by the sixth embodiment of the present disclosure.

[0034] Description of the reference numerals:

[0035] 10. Lock body;

[0036] 20. Lock beam; 210. Connecting part; 220. Beam body part; 230. Locking part;

[0037] 31. First locking tongue; 32. Second locking tongue; 33. First locking spring; 34. Second locking spring;

[0038] 40. Lock core; 410. Lock core body; 420. Central column; 430. Protection spring; 440. Lock hole;

[0039] 50. Plug assembly; 510. Lock pin; 520. Driving pin; 530. Compression spring;

[0040] 61. Ejection spring; 62. Ejection limit part;

[0041] 70. Blind hole plug;

[0042] 80. Limit pin;

[0043] 90. Key. Detailed implementation manners

[0044] Now, example embodiments will be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. Like reference numerals in the figures denote the same or similar structures, and thus their detailed descriptions will be omitted.

[0045] Although relative terms such as "upper" and "lower" are used in this specification to describe the relative relationship of one component of the icon to another component, these terms are used in this specification only for convenience, for example, according to the directions of the examples described in the accompanying drawings. It can be understood that if the device of the icon is turned upside down, the component described as "upper" will become the component "lower". When a structure is "on" another structure, it may mean that a structure is integrally formed on another structure, or that a structure is "directly" disposed on another structure, or that a structure is "indirectly" disposed on another structure through another structure.

[0046] The terms "a", "an", "the", "said" and "at least one" are used to indicate the existence of one or more elements / components / etc.; the terms "comprising" and "having" are used to mean an open inclusion and mean that there may be additional elements / components / etc. in addition to the listed elements / components / etc.; the terms "first", "second" and "third", etc. are used only as labels and are not a limitation on the quantity of their objects.

[0047] An embodiment of the present disclosure provides a padlock. As Figures 1 to 3 shown, the padlock includes a lock body 10, a lock beam 20, a locking tongue, a lock core 40, and a plurality of pin assemblies 50. The lock body 10 is provided with a first lock beam 20 hole and a second lock beam 20 hole. The lock beam 20 includes a connecting portion 210, a beam body portion 220, and a locking portion 230 that are connected in sequence. The end of the connecting portion 210 is located in the first lock beam 20 hole and is rotatably connected to the lock body 10 in a telescopic manner; by the telescoping of the connecting portion 210 in the first lock beam 20 hole, the locking portion 230 can be driven to be located in the second lock beam 20 hole or withdrawn from the second lock beam 20 hole; the locking tongue is movably disposed in the lock body 10 to be in a locking position and an unlocking position; when the locking tongue is in the locking position, a limit is formed on the withdrawal of the locking portion 230 from the second lock beam 20 hole; the lock core 40 is disposed in the lock body 10, and the lock core 40 is configured to drive the locking tongue to retract to the unlocking position by rotation; the lock core 40 is provided with a lock hole 440, and a plurality of spiral grooves are provided on the inner wall of the lock hole 440 along the axial direction of the rotation of the lock core 40; the lock pins 510 of the plurality of pin assemblies 50 are all located in the spiral grooves.

[0048] For the padlock provided by the present disclosure, the lock core 40 is provided with a lock hole 440, and a plurality of spiral grooves are provided on the inner wall of the lock hole 440 along the axial direction of the rotation of the lock core 40; the lock pins 510 of the plurality of pin assemblies 50 are all located in the spiral grooves. Therefore, the key 90 adopts a screw-in unlocking method instead of a direct insertion unlocking method; the pin assemblies 50 are hidden inside the spiral grooves of the lock core 40 and cannot be directly seen by the naked eye from the outside of the lock hole 440. Even with special tools, it is difficult to easily touch the pin assemblies 50, and it is very difficult to unlock most of the pin assemblies 50 to the open state, greatly improving the safety performance of the lock core 40.

[0049] Specifically, the lock core 40 includes a lock core body 410. A plurality of spiral grooves on the lock core body 410 can respectively extend spirally from the opening of the lock hole 440 towards the bottom of the lock hole 440. When the key 90 is inserted into the lock core 40 for unlocking, the key 90 extends into the lock hole 440 by a screw-in method to drive the lock core 40 to rotate for unlocking.

[0050] Among them, the spiral distribution mode of the plurality of spiral grooves needs to ensure that the key 90 can be screwed in. For example, the plurality of spiral grooves are equally spaced at various positions in the axial direction of the lock core 40.

[0051] Among them, the helix of the spiral groove can be left-handed or right-handed; the number of spiral grooves can be, for example, one or two, and two spiral grooves can be symmetrically arranged on the lock core 40; the number of spiral grooves can be, for example, three, and the three spiral grooves are arranged on the lock core 40 at an angle of 120° to each other; the number of spiral grooves can be, for example, four, and the four spiral grooves are arranged on the lock core 40 at an angle of 90° to each other; of course, the number of spiral grooves can also be five, six or more, and multiple spiral grooves can be evenly distributed or unevenly distributed in the circumferential direction of the rotating shaft of the lock core 40, and the present disclosure does not limit this.

[0052] Among them, the spiral distribution of the spiral grooves needs to satisfy the hiding of the ball component 50. For example, each spiral groove can be spirally distributed around the lock hole 440 for one or more turns, and the spiral distribution modes of each spiral groove are the same.

[0053] Among them, the width of the spiral groove only needs to satisfy the setting of the ball component 50, for example, it is 1 mm to 4 mm, such as 1 mm, 2 mm, 3 mm, 4 mm, etc., and the present disclosure does not list them one by one here; of course, the width of the spiral groove can also be less than 1 mm or greater than 4 mm, and the present disclosure does not limit this.

[0054] Among them, the widths of the spiral grooves can be the same or different; when the widths of at least two spiral grooves are different, that is, the widths of the unlocking structures provided on the corresponding key 90 can be different, so as to form an anti-fooling effect when the key 90 extends into the lock hole 440; when the insertion direction is incorrect, the key 90 cannot extend into the lock hole 440, thus avoiding the inability to unlock after the key 90 is inserted in the wrong direction, resulting in a reduction in the user experience.

[0055] Specifically, in the axial direction of the rotation of the lock core 40, a plurality of ball components 50 for restricting the rotation of the lock core 40 are provided on the lock body 10; in the circumferential direction of the rotation of the lock core 40, a plurality of ball components 50 for restricting the rotation of the lock core 40 are provided on the lock body 10. By providing a plurality of ball components 50 on the lock body 10 in the axial and circumferential directions of the rotation of the lock core 40, that is, the layout of the ball components 50 can be spatial, and when the lock core 40 is unlocked, the ball components 50 are provided in the upper, lower, left and right positions around it, improving the security of the lock.

[0056] Among them, at least some of the adjacent ball components 50 have different spacings in the axial direction to improve the security of the lock.

[0057] Among them, at least three groups of ball components 50 are evenly distributed in the axial direction of the rotation of the lock core 40, and the ball component 50 located in the middle corresponds to the middle position in the axial direction of the lock core 40, so that the ball components 50 are provided at the upper, middle and lower positions of the lock core 40 to improve the security of the lock.

[0058] Among them, in the circumferential direction of the rotation of the lock core 40, at least some of the adjacent pin assemblies 50 have different circumferential distances, so as to improve the security of the lock.

[0059] Among them, in the circumferential direction of the rotation of the lock core 40, the included angles between at least three groups of pin assemblies 50 are 90° to each other, so that the pin assemblies 50 are arranged in the circumferential direction of the lock core 40, so as to improve the security of the lock.

[0060] Among them, in the axial direction of the rotation of the lock core 40 and in the circumferential direction of the rotation of the lock core 40, the number of pin assemblies 50 is greater than six, such as six, seven, eight, nine, ten or more.

[0061] Specifically, as Figure 1 shown, each group of pin assemblies 50 includes a locking pin 510, a driving pin 520 and a compression spring 530. The driving pin 520 is located between the locking pin 510 and the compression spring 530. The locking pin 510 is arranged on the lock core 40 and protrudes from the rotating groove into the lock hole 440 when the compression spring 530 is in a free state; when the key 90 is inserted, the locking pin 510 is squeezed, so as to move towards the compression elastic side, and then drive the driving pin 520 to move, so that the contact surface between the driving pin 520 and the locking pin 510 is located on the contact surface between the lock core 40 and the lock body 10; thus enabling the lock core 40 to drive the locking pin 510 to rotate and achieve unlocking.

[0062] Among them, the lengths of the locking pins 510 in each pin assembly 50 can be different, so as to improve the security of the lock.

[0063] Specifically, as Figure 1 shown, a central column 420 is provided in the lock hole 440. The central column 420 can play a guiding role and at the same time has the functions of dust prevention and preventing foreign objects from entering; a central groove is correspondingly provided on the key 90.

[0064] Among them, as Figure 1 shown, a protective spring 430 is further provided at the bottom of the lock hole 440, and the protective spring 430 is sleeved on the central column 420.

[0065] Specifically, as Figure 1 and Figure 2 shown, the locking part 230 of the lock beam 20 is limited by the first locking tongue 31, and the connecting part 210 of the lock beam 20 is limited by the second locking tongue 32; when the lock core 40 is driven by the key 90 to rotate, the lock core 40 can drive the first locking tongue 31 to compress the first locking spring 33 and move towards the second locking tongue 32 side, and can drive the second locking tongue 32 to compress the second locking spring 34 and move towards the first locking tongue 31 side, so as to realize the first locking tongue 31 withdrawing from the lock groove on the locking part 230 and the second locking tongue 32 withdrawing from the lock groove on the connecting part 210, and further realize unlocking.

[0066] Among them, as Figure 1 shown, a limiting groove is provided at the bottom of the connecting portion 210 of the lock beam 20, and a pop-up limiting member 62 is provided on the lock body 10. By cooperating the pop-up limiting member 62 with the limiting groove at the bottom of the connecting portion 210, the limiting of the raised position of the lock beam 20 can be achieved, so that the locking portion 230 can be withdrawn from the lock body 10 by raising the lock beam 20, while ensuring the connection between the connecting portion 210 and the lock body 10.

[0067] Among them, as Figure 1 shown, a pop-up spring 61 is provided in the lock body 10. When the first lock tongue 31 withdraws from the lock groove on the locking portion 230 and the second lock tongue 32 withdraws from the lock groove on the connecting portion 210, the lock beam 20 is not subject to the resistance of upward movement. At this time, through the pop-up spring 61, the lock beam 20 can be automatically popped up after unlocking, so that the locking portion 230 can be withdrawn from the lock body 10, which is convenient for the user to use.

[0068] Among them, as Figure 1 shown, the blind hole plug 70 plugs the blind hole on the lock body 10, and its material can mainly be solder material.

[0069] Among them, as Figure 1 shown, a limit pin 80 is provided on the lock body 10. By the limit pin 80, the rotation position of the lock core 40 is restricted to form the axial limit of the lock core 40.

[0070] Specifically, the main technical parameters of the structure of the screw-in type pin tumbler padlock: 1. The diameter of the spiral key 90: the general type is Φ10mm; 2. The pitch of the spiral key 90: 2mm - 6mm, with a 0.1mm increment; 3. The pin tumbler assembly 50 of the spiral key 90: the number is 1 - 10; 4. The distribution space angle of the pin tumbler assembly 50: three directions of 0°, 90°, and 270°; 5. The height of the top of the teeth of the spiral key 90: the height when cooperating with the pin tumbler assembly 50 to unlock the lock; among the above parameters, when any one changes, the padlock will have a uniquely corresponding key 90, and there will be multiple series of combined padlock products.

[0071] Among them, as Figure 4 shown, one pin tumbler assembly 50 is distributed in the 0° direction;

[0072] As Figure 5 shown, two pin tumbler assemblies 50 are distributed in the 0° direction and the 90° direction;

[0073] As Figure 6 shown, two pin tumbler assemblies 50 are distributed in the 0° direction and the 270° direction;

[0074] As Figure 7 shown, two pin tumbler assemblies 50 are distributed in the 90° direction and the 360° direction;

[0075] As Figure 8 shown, three ball assemblies 50 are distributed in the 0°, 90°, and 270° directions;

[0076] As Figure 9 shown, four ball assemblies 50 are distributed in the 0°, 90°, 270°, and 360° directions.

[0077] Specifically, when opening this padlock, the spiral key 90 needs to be screwed into the inner depth of the lock core 40 from the central guide post until the end, and the protection spring 430 is compressed; at this time, the lock pins 510 at each position coincide with the ground of the spiral key 90 that has been ground, and the lock pins 510 compress the drive pins 520 to compress the spring 53010. The joint surface of the lock pins 510 and the drive pins 520 exactly coincides with the cylindrical surface of the lock core 40, that is, the mating surface with the lock body 10. Rotating the spiral key 90 will drive the first lock tongue 31 and the second lock tongue 32 to compress the first lock spring 33 and the second lock spring 34 to contract interactively towards the axis. When the first lock tongue 31 and the second lock tongue 32 disengage from the lock slots on the U-shaped lock beam 20, the U-shaped lock beam 20 will be ejected by the spring 61, and the lock is opened. When the U-shaped lock beam 20 is pressed, the lock will be locked.

[0078] The padlock provided by the present disclosure mainly solves the drawback that the traditional serrated insertion ball lock has a low safety level and is easily unlocked; by changing the unlocking structural principle, it is not easy to open the lock by manually finding the positions of the balls, avoiding the problem of too low coincidence rate of the unlocking keys of the lock, and thus the high reliability and high security of the mechanical padlock can be achieved.

[0079] After considering the specification and practicing the invention disclosed herein, those skilled in the art will readily conceive of other embodiments of the present disclosure. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include known common knowledge or conventional technical means in the technical field not disclosed by the present disclosure. The specification and examples are only regarded as exemplary, and the true scope and spirit of the present disclosure are pointed out by the appended claims.

Claims

1. A padlock, characterized in that: include: A lock body, wherein the lock body is provided with a first lock beam hole and a second lock beam hole; A locking beam, the locking beam comprising a connecting portion, a beam body portion and a locking portion connected in sequence, an end portion of the connecting portion being located in the first locking beam hole and being rotatably connected to the lock body in a telescopic manner; the locking portion can be driven to be located in the second locking beam hole or withdrawn from the second locking beam hole by the extension and contraction of the connecting portion in the first locking beam hole; A lock tongue, the lock tongue is movably arranged in the lock body to be located at a locking position and an unlocking position; when the lock tongue is located at the locking position, a position limit is formed for the locking portion to exit the second lock beam hole; A lock core, the lock core is arranged in the lock body, and the lock core is configured to drive the lock tongue to retract to an unlocked position by rotating; a lock hole is arranged on the lock core, and a plurality of rotation grooves are arranged on the inner wall of the lock hole along the axial direction of rotation of the lock core; A plurality of pin assemblies, the locking pins of the plurality of pin assemblies are all located in the rotation groove.

2. The padlock according to claim 1, characterized in that: In the circumferential direction of rotation of the lock core, the distance between two adjacent ones of the plurality of rotary grooves is different.

3. The padlock according to claim 1, characterized in that: In the axial direction of the rotation of the lock core, the lock body is provided with a plurality of pin assemblies for limiting the rotation of the lock core; in the circumferential direction of the rotation of the lock core, the lock body is provided with a plurality of pin assemblies for limiting the rotation of the lock core.

4. The padlock according to claim 3, characterized in that: In the axial direction of rotation of the lock core, at least some of the adjacent pin assemblies have different axial spacings.

5. The padlock according to claim 3, characterized in that: In the axial direction of rotation of the lock core, at least three groups of the pin assemblies are evenly distributed in the axial direction of rotation of the lock core, and the pin assembly located in the middle is arranged corresponding to the middle position in the axial direction of the lock core.

6. The padlock according to claim 3, characterized in that: In the circumferential direction of rotation of the lock core, at least some of the adjacent pin assemblies have different circumferential distances.

7. The padlock according to claim 3, characterized in that: In the circumferential direction of rotation of the lock core, the angles between at least three groups of the pin assemblies are 90° to each other.

8. The padlock according to claim 3, characterized in that: In the axial direction of rotation of the lock core and in the circumferential direction of rotation of the lock core, the number of the pin assemblies is greater than six.

9. The padlock according to claim 1, characterized in that: A central column is arranged in the lock hole.

10. The padlock according to claim 9, characterized in that: A protection spring is also provided at the bottom of the lock hole, and the protection spring is sleeved on the central column.

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