Push-button padlock

Abstract

The present invention discloses a push-button padlock, which includes a housing, a locking assembly, a lock beam, and a push button. The lock beam moves in a first direction to release the locking of an object or moves in a second direction and cooperates with the locking assembly for locking. The locking assembly includes a braking assembly, a moving frame, a code-changing plate, a code-changing lever, and a reset assembly. When the moving frame moves in the first direction to drive the braking assembly to release the locking of the lock beam, the moving frame also drives the code-changing lever to release the restriction on the moving stroke of the moving frame in the second direction, and drives the moving frame to move by moving the lock beam in the second direction to release the restriction on the rotation of the push button by the code-changing plate; when the lock beam is moving in the first direction or has moved in place, the lock beam cooperates with the reset assembly to drive the moving frame to reset the pressed push button and drive the code-changing lever to re-restrict the movement of the moving frame in the second direction. This solution can overall improve the security, avoid password exposure and password tampering after unlocking.

Description

Technical Field

[0001] The present invention relates to a lock, specifically a button padlock. Background Art

[0002] Traditional mechanical padlocks are widely used in daily life and industrial scenarios. Their security mainly relies on fixed mechanical structures, such as pin tumbler lock cores or preset password dials. In recent years, padlocks with replaceable passwords have gradually gained market favor due to their flexibility and the advantage of users' self-management of passwords. However, existing replaceable-code padlocks still have the following significant defects in terms of structural design and function implementation:

[0003] 1. Risk of password tampering in the unlocked state: Most replaceable-code padlocks allow users to directly reset the password when the lock beam is open. If an unauthorized person obtains temporary unlocking permission at this time (for example, when the user is not paying attention), they can easily tamper with the password, resulting in the user losing control of the padlock and the security being difficult to guarantee.

[0004] 2. Hidden danger of password visibility exposure: The password buttons of existing products usually remain in the button state when the lock is opened, making the password characters directly exposed to the view of external observers, creating a security vulnerability.

[0005] The above problems restrict the practicality and security of replaceable-code padlocks. Especially for applications that require frequent changes in usage scenarios, a button padlock with higher security is needed. Summary of the Invention

[0006] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a button padlock that cannot change the password in the unlocked state, can reset the password after unlocking, and requires re-entering a new password each time to change the password, which can overall improve security and avoid password exposure and password tampering after unlocking.

[0007] To achieve the above purpose, the present invention provides the following technical solution: A button padlock includes a housing, a locking component disposed inside the housing, a lock beam installed on the housing and cooperating with the locking component for locking, and a plurality of buttons installed on the housing for pressing to form a password. The lock beam unlocks an object by moving in a first direction or locks in cooperation with the locking component by moving in a second direction. The first direction is the direction in which the lock beam disengages from the housing, and the second direction is the direction in which the lock beam is pressed into the housing. The buttons cooperate with the locking component to lock or unlock the lock beam. The locking component includes

[0008] A braking component that cooperates with the lock beam to lock or unlock the lock beam;

[0009] A moving frame that cooperates with the buttons. When the correct password is formed by pressing the buttons, the moving frame drives the braking component to unlock the lock beam;

[0010] A code change board for restricting the rotation of a key to change a password;

[0011] A code change lever for restricting the stroke of the moving frame moving in the second direction, thereby restricting the separation of the code change board from the key;

[0012] When the moving frame moves in the first direction to drive the braking component to release the locking of the lock beam, the moving frame also drives the code change lever to release the restriction on the moving stroke of the moving frame in the second direction, and moves in the second direction through the lock beam to drive the moving frame to move and release the restriction of the code change board on the rotation of the key;

[0013] The locking component further includes

[0014] A reset component, which cooperates with the lock beam. When the lock beam moves in the first direction or moves in place, the lock beam cooperates with the reset component to drive the moving frame to reset the pressed key and drive the code change lever to re-restrict the movement of the moving frame in the second direction.

[0015] As a further improvement of the present invention, a code change spring is arranged at the position corresponding to the code change board in the housing, a restricting member is arranged at the position corresponding to the key on the code change board, a sliding groove is arranged at the position corresponding to the restricting member on the key, the code change spring provides the elastic force of the code change board to keep the restricting member in the sliding groove, and the sliding groove cooperates with the restricting member to restrict the axial pressing movement and circumferential rotation of the key.

[0016] As a further improvement of the present invention, a code change control board for cooperating with the edge of the moving frame to abut is arranged on the code change board. When the code change lever releases the restriction on the moving stroke of the moving frame in the second direction and the moving frame moves in the second direction, the moving frame abuts against the code change control board and drives the code change board to move to release the restriction on the rotation of the key.

[0017] As a further improvement of the present invention, a lever spring is arranged at the position corresponding to the code change lever in the housing, and the code change lever is kept in the first position or the second position through the lever spring, and the first position is the position for restricting the movement of the moving frame in the second direction, and the second position is the position for releasing the restriction on the movement of the moving frame in the second direction.

[0018] As a further improvement of the present invention, the code change lever is rotatably connected in the housing, one end of the lever spring is installed in the housing, and the other end abuts against the code change lever. The code change lever is kept in the first position or the second position by rotating and cooperating with the elastic force of the lever spring.

[0019] As a further improvement of the present invention, a groove is provided at the position of the moving frame corresponding to the code-changing lever. When the code-changing lever is held at the second position, the end of the code-changing lever corresponds to the position of the groove and can allow the moving frame to enter the groove when moving in the second direction; when the code-changing lever is held at the first position, the end of the code-changing lever is misaligned with the groove and restricts the moving frame from moving in the second direction.

[0020] As a further improvement of the present invention, a mating part is provided at the position of the moving frame corresponding to the code-changing lever, and a contact part is provided at the position of the code-changing lever corresponding to the mating part. When the code-changing lever is at the first position and the moving frame moves in the first direction, the mating part pushes the contact part and then the code-changing lever rotates and is held at the second position in cooperation with the lever spring.

[0021] As a further improvement of the present invention, the reset assembly includes a cleaning pull rod, a first mating inclined surface provided on the lock beam, and a reset spring provided at the end of the cleaning pull rod; a reset shovel is provided at the position of the moving frame corresponding to the bottom of the key. When the lock beam moves in the first direction after being unlocked, the first mating inclined surface guides the cleaning pull rod to move, drives the moving frame to move in the second direction through the cleaning pull rod, and resets the pressed key through the reset shovel, and the reset spring is compressed.

[0022] As a further improvement of the present invention, when the cleaning pull rod drives the moving frame to move in the second direction, the cleaning pull rod also drives the code-changing lever to switch from the second position to the first position.

[0023] As a further improvement of the present invention, a strip-shaped hole is provided at the position of the cleaning pull rod corresponding to the code-changing lever, and a driving block is provided at the position of the code-changing lever corresponding to the strip-shaped hole. When the code-changing lever switches from the first position to the second position, the driving block moves in the strip-shaped hole. When the cleaning pull rod drives the moving frame to move in the second direction, the cleaning pull rod cooperates with the driving block through the strip-shaped hole to switch the code-changing lever from the first position to the second position.

[0024] As a further improvement of the present invention, a number of mating parts are provided at the position of the cleaning pull rod corresponding to the moving frame, and a second mating inclined surface is provided at the position of the moving frame corresponding to the mating parts. When the cleaning pull rod moves under the guiding action of the first mating inclined surface, the mating parts drive the moving frame to move in the second direction by cooperating with the second mating inclined surface.

[0025] As a further improvement of the present invention, the mobile frame is provided with a through hole for installing a button, a protrusion corresponding to the position of the through hole, an unlocking part for cooperating with the brake assembly to unlock, and a mobile frame spring for driving the mobile frame to move. A plurality of password grooves for cooperating with the protrusion to enter are provided on the side of the button, and the password grooves are staggered in the axial and circumferential directions of the button. When all the buttons are pressed to the position corresponding to the password groove and the protrusion, the mobile frame spring provides elastic force to push the mobile frame, and the protrusion enters the password groove. The unlocking part drives the brake assembly to unlock the lock beam, and also drives the code change lever to switch from the first position to the second position.

[0026] As a further improvement of the present invention, the brake assembly includes a brake rod and a brake rod spring. The brake rod is rotatably installed in the shell. The lock beam is provided with a slot for cooperating with the brake rod to be embedded. The brake rod spring is installed in the shell, and one end of the corresponding brake rod abuts against the brake rod to provide elastic force for the brake rod to be embedded in the slot; the brake rod is also provided with an abutment portion for cooperating with the unlocking portion. When the unlocking portion drives the brake assembly to unlock the lock beam, the unlocking portion pushes the abutment portion and rotates the brake rod to disengage the brake rod from the slot and release the restriction on the lock beam.

[0027] The beneficial effect of the present invention is that strict timing control of unlocking and password changing is achieved through the linkage design of the brake component, the movable frame, the code changing plate and the code changing lever, and the password change is allowed only when the correct password is input and the lock beam is not pulled out of the shell, thereby avoiding the risk of the password being tampered with in the unlocked state (lock beam is out of the shell state); at the same time, the reset component forces the button to reset when the lock beam moves, ensuring that the password characters are hidden, thereby solving the problem of password visibility exposure. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the front internal structure of the present invention;

[0029] Figure 2 It is a three-dimensional schematic diagram of the front internal structure of the present invention;

[0030] Figure 3 It is a three-dimensional schematic diagram of the internal structure of the present invention from another perspective;

[0031] Figure 4 It is a schematic diagram of the internal structure of the back side of the present invention;

[0032] Figure 5 It is a schematic diagram of the internal three-dimensional structure of the back side of the present invention;

[0033] Figure 6 A cross-sectional structural schematic diagram of the present invention;

[0034] Figure 7 Another cross-sectional structural schematic diagram of the present invention;

[0035] Figure 8 Schematic diagram of the back structure of the mobile rack of the present invention;

[0036] Figure 9 Schematic diagram of the internal structure of the housing of the present invention.

[0037] Reference numerals in the drawings: 1. housing; 11. code conversion spring; 12. lever spring; 2. locking assembly; 21. braking assembly; 211. braking rod; 212. braking rod spring; 213. abutting portion; 22. mobile rack; 221. groove; 222. second mating inclined surface; 223. through hole; 224. protrusion; 225. unlocking portion; 226. mobile rack spring; 227. mating portion; 23. code conversion plate; 231. restricting member; 232. code conversion control plate; 24. code conversion lever; 241. contact portion; 242. driving block; 25. reset assembly; 251. cleaning pull rod; 2511. strip hole; 2512. mating member; 252. first mating inclined surface; 253. reset spring; 254. reset shovel; 3. lock beam; 31. card slot; 4. key; 41. chute; 42. password slot. Detailed implementation manners

[0038] The present invention will be further described in detail below with reference to the embodiments shown in the drawings.

[0039] Refer to Figures 1-9 as shown.

[0040] A push-button padlock, comprising a housing 1, a locking component 2 arranged inside the housing 1, a lock beam 3 mounted on the housing 1 and cooperating with the locking component 2 for locking, and a plurality of push buttons 4 mounted on the housing 1 for pressing to form a password. The lock beam 3 unlocks an object by moving in a first direction or locks by moving in a second direction and cooperating with the locking component 2, wherein the first direction is the direction in which the lock beam 3 disengages from the housing 1, and the second direction is the direction in which the lock beam 3 is pressed into the housing 1. The push buttons 4 cooperate with the locking component 2 to lock or unlock the lock beam 3. The locking component 2 includes a braking component 21 (cooperating with the lock beam 3 to lock or unlock the lock beam 3), a moving frame 22 (for cooperating with the push buttons 4, and driving the braking component 21 to unlock the lock beam 3 when the push buttons 4 are pressed to form a correct password), a code-changing plate 23 (for restricting the rotation of the push buttons 4 to change the password), and a code-changing lever 24 (for restricting the travel of the moving frame 22 moving in the second direction, thereby restricting the separation of the code-changing plate 23 from the push buttons 4). When the moving frame 22 moves in the first direction to drive the braking component 21 to unlock the lock beam 3, the moving frame 22 also drives the code-changing lever 24 to release the restriction on the travel of the moving frame 22 moving in the second direction, and drives the code-changing plate 23 to release the restriction on the rotation of the push buttons 4 by moving the lock beam 3 in the second direction to drive the moving frame 22 to move. The locking component 2 further includes a reset component 25 (cooperating with the lock beam 3, when the lock beam 3 is moving in the first direction or has moved in place, the lock beam 3 cooperates with the reset component 25 to drive the moving frame 22 to reset the pressed push buttons 4, and drive the code-changing lever 24 to re-restrict the movement of the moving frame 22 in the second direction).

[0041] When the user presses the correct password, the moving frame 22 can be unlocked and moved. At this time, the moving frame 22 can move in the first direction, pushing the brake assembly 21 to release the locking state of the lock beam 3, and at the same time, the code-changing lever 24 is pushed by the moving frame 22 to break away from the restriction on the travel of the moving frame 22; at this time, the lock beam 3 can move in the second direction (pressed into the housing 1), driving the moving frame 22 to further move in the second direction, so that the code-changing plate 23 is free from the restriction on the rotation of the button 4, allowing the user to rotate the button 4 to change the password. Through the linkage restriction of the code-changing lever 24 and the moving frame 22, the password change operation can only be performed when the lock beam 3 is in the unlocked state and pressed into the housing 1, preventing the password from being tampered with by lawless elements after unlocking. Moreover, when the lock beam 3 is pulled out or removed in the first direction after being unlocked, the reset component 25 drives the mobile frame 22 to move in the second direction through the movement of the lock beam 3, and the mobile frame 22 resets the button 4 to avoid the password exposure; and when the lock beam 3 is pulled out or removed in the first direction after being unlocked, the code change lever 24 re-limits the second direction travel of the mobile frame 22 to ensure that the restriction relationship between the code change plate 23 and the button 4 is restored, and prevents the password from being tampered with by lawless elements in the unlocked state (the state in which the lock beam 3 is pulled out of the shell 1). That is to say, in this scheme, when the user's lock beam 3 is in the locked state, after pressing the button 4 to form the correct password, the lock beam 3 is pressed down in the second direction to the right position before the password can be changed; once the user pulls the lock beam 3 out of the shell 1 in the first direction, the button 4 will be reset, and the lock beam 3 is limited in the second direction by the code change lever 24. The movement of the lock beam 3 in the second direction is limited, resulting in the lock beam 3 being unable to be pressed down in the second direction to the right position to allow the code change plate 23 and the button 4 to break away from the restriction relationship, further improving security.

[0042] As an optional embodiment, a code switching spring 11 is provided at a position corresponding to the code switching plate 23 in the shell 1, a limiting member 231 is provided at a position corresponding to the key 4 of the code switching plate 23, and a slide groove 41 is provided at a position corresponding to the limiting member 231 on the key 4. The code switching spring 11 provides elastic force for the code switching plate 23 to keep the limiting member 231 located in the slide groove 41, and the slide groove 41 cooperates with the limiting member 231 to limit the axial pressing movement and circumferential rotation of the key 4.

[0043] The code change spring 11 pushes the limiting member 231 of the code change plate 23 into the slide groove 41 of the button 4 through elastic force, limiting the circumferential rotation of the button 4 (i.e., the password modification action). When the user needs to change the password, he must first unlock the lock beam 3 and press the lock beam 3 to drive the mobile frame 22 to move, so that the limiting member 231 of the code change plate 23 moves with the mobile frame 22 and disengages from the slide groove 41. At this time, the button 4 can be rotated to adjust the password. The design of the slide groove 41 allows the button 4 to be pressed axially (for entering the password) but limits circumferential rotation, ensuring that the password can only be changed when the code change plate 23 and the button 4 are out of restriction, ensuring security. The elastic force of the code change spring 11 maintains the stable cooperation between the limiting member 231 and the slide groove 41, improving the reliability of password setting.

[0044] In a further setting, a code change control board 232 for cooperating with the edge of the moving frame 22 to abut is provided on the code change board 23. When the code change lever 24 releases the restriction on the moving stroke of the moving frame 22 in the second direction and the moving frame 22 moves in the second direction, the moving frame 22 abuts against the code change control board 232 and drives the code change board 23 to move, so as to release the restriction on the rotation of the button 4.

[0045] After the code change lever 24 releases the restriction on the moving frame 22, during the process of the moving frame 22 moving in the second direction, its edge abuts against the code change control board 232, pushing the code change board 23 to move synchronously, so that the restricting member 231 of the code change board 23 disengages from the sliding groove 41 of the button 4. The code change control board 232 serves as a cooperation medium between the moving frame 22 and the code change board 23, ensuring the stability of the cooperation relationship between the moving frame 22 and the code change board 23.

[0046] In an alternative solution that can make the working state of the code change lever 24 more stable, a lever spring 12 is provided inside the housing 1 at a position corresponding to the code change lever 24. The code change lever 24 is held in the first position or the second position by the lever spring 12, and the first position is the position that restricts the moving frame 22 from moving in the second direction, and the second position is the position that releases the restriction on the moving frame 22 from moving in the second direction.

[0047] The lever spring 12 maintains the stable state of the code change lever 24 through its elastic force. When the code change lever 24 is in the first position, it can block the moving path of the moving frame 22 and restrict the moving stroke of the moving frame 22 in the second direction, and can prevent the restricting member 231 on the code change board 23 from disengaging from the sliding groove 41 after the moving frame 22 moves; when the code change lever 24 switches to the second position, the moving frame 22 can drive the code change board 23 to move, allowing the restricting member 231 to disengage from the sliding groove 41. The bistable design of the lever spring 12 ensures that the code change lever 24 is only stable after switching positions, preventing accidental unlocking due to vibration or accidental touch. The function of the code change lever 24 cooperating with the lever spring 12 is that during the process of the position change of the code change lever 24, the code change lever 24 will compress and release the lever spring 12 to pry the code change lever 24 between the two position states, similar to the prying of the button 4 on the switch panel.

[0048] As an implementation manner that can make the position change of the code change lever 24 more convenient, the code change lever 24 is rotatably connected inside the housing 1, and one end of the lever spring 12 is installed inside the housing 1, and the other end abuts against the code change lever 24. The code change lever 24 is held in the first position or the second position by rotating and cooperating with the elastic force of the lever spring 12.

[0049] The escape lever 24 switches positions rotationally, and the lever spring 12 controls its rotation angle by compressing or releasing elastic force. For example, when the moving frame 22 moves in the first direction to unlock, during the process of pushing the escape lever 24 to rotate to the second position (releasing the restriction on the moving frame 22), the lever spring 12 is compressed. As the rotation angle of the escape lever 24 increases, the lever spring 12 exceeds the critical position and begins to release elastic force, causing the escape lever 24 to rotate to the second position and stabilize at the second position; when the reset component 25 drives the escape lever 24 to rotate back to the first position, as the rotation angle of the escape lever 24 increases, the lever spring 12 exceeds the critical position and begins to release elastic force, causing the escape lever 24 to rotate to the first position and stabilize at the first position. This structure simplifies the control logic of the escape lever 24, improves the reliability of the action, and can keep the position state of the escape lever 24 stable.

[0050] To facilitate the cooperation between the moving frame 22 and the escape lever 24, a groove 221 is provided at the position of the moving frame 22 corresponding to the escape lever 24. When the escape lever 24 is held in the second position, the end of the escape lever 24 corresponds to the position of the groove 221 and can allow the moving frame 22 to enter the groove 221 when moving in the second direction; when the escape lever 24 is held in the first position, the end of the escape lever 24 is misaligned with the groove 221, restricting the moving frame 22 from moving in the second direction.

[0051] The cooperation between the groove 221 and the end of the escape lever 24 forms a mechanical interlock mechanism. When the escape lever 24 is in the second position, the groove 221 allows the moving frame 22 to move in the second direction, thus entering the password modification process; when the escape lever 24 is in the first position, its end is outside the groove 221, blocking the moving stroke of the moving frame 22 in the second direction. This structure ensures safety through physical limit, and the cooperation structure is simple and convenient for processing.

[0052] Similarly, to facilitate the cooperation between the moving frame 22 and the escape lever 24, a cooperation part 227 is provided at the position of the moving frame 22 corresponding to the escape lever 24, and a contact part 241 is provided at the position of the escape lever 24 corresponding to the cooperation part 227. When the escape lever 24 is in the first position and the moving frame 22 moves in the first direction, the cooperation part 227 pushes the contact part 241, and then the escape lever 24 rotates and cooperates with the lever spring 12 to be held in the second position.

[0053] The cooperation part 227 of the moving frame 22 and the contact part 241 of the escape lever 24 form a linkage relationship. During the unlocking process, when the moving frame 22 moves in the first direction, the cooperation part 227 pushes the contact part 241 of the escape lever 24, forcing it to rotate to the second position. This action binds the state switching of the escape lever 24 to the unlocking operation, ensuring that the password modification function is only activated after correct unlocking and preventing illegal operations.

[0054] The specific reset component 25 can be implemented by the following solution:

[0055] The reset component 25 includes a clearing pull rod 251, a first mating inclined surface 252 provided on the locking beam 3, and a reset spring 253 provided at the end of the clearing pull rod 251; a reset shovel 254 is provided at a position on the moving frame 22 corresponding to the bottom of the button 4. When the locking beam 3 moves in the first direction after unlocking, the first mating inclined surface 252 guides the clearing pull rod 251 to move, drives the moving frame 22 to move in the second direction through the clearing pull rod 251, and resets the pressed button 4 through the reset shovel 254, and the reset spring 253 is compressed.

[0056] The clearing pull rod 251 cooperates with the first inclined surface through the reset spring 253. When the locking beam 3 moves, the first mating inclined surface 252 contacts the clearing pull rod 251 and causes the clearing pull rod 251 to move, forcing the clearing pull rod 251 to drive the moving frame 22 to move in the second direction. The reset shovel 254 of the moving frame 22 jacks up and resets the pressed button 4 during the movement, avoiding the exposure of password characters; the reset spring 253 compresses and stores energy to provide reset power for the subsequent reset of the clearing pull rod 251. This structure realizes the automatic linkage between the movement of the locking beam 3 and the reset of the button 4, eliminating the hidden danger of password visibility.

[0057] Specifically, when the clearing pull rod 251 drives the moving frame 22 to move in the second direction, the clearing pull rod 251 also drives the code-changing lever 24 to switch from the second position to the first position.

[0058] When the clearing pull rod 251 drives the moving frame 22 in the second direction, it also cooperates with the code-changing lever 24, forcing the code-changing lever 24 to rotate back to the first position. This action restricts the second-direction travel of the moving frame 22 by the code-changing lever 24 again, ensuring that the reset of the button 4 and the password modification function are immediately closed after the locking beam 3 is pulled out, ensuring that the user automatically closes the password modification function and the reset of the button 4 after pulling out the locking beam 3, ensuring security.

[0059] In a preferred structure, a strip-shaped hole 2511 is provided at a position on the clearing pull rod 251 corresponding to the code-changing lever 24, and a driving block 242 is provided at a position on the code-changing lever 24 corresponding to the strip-shaped hole 2511. When the code-changing lever 24 switches from the first position to the second position, the driving block 242 moves in the strip-shaped hole 2511. When the clearing pull rod 251 drives the moving frame 22 to move in the second direction, the clearing pull rod 251 cooperates with the driving block 242 through the strip-shaped hole 2511 to switch the code-changing lever 24 from the first position to the second position.

[0060] The sliding cooperation between the strip hole 2511 and the driving block 242 can not only provide a rotation space for the cooperation between the cooperation portion 227 and the contact portion 241 to allow the code-changing lever 24 to rotate and change to the second position, but also enable the clearing rod 251 to pull the code-changing lever 24 to switch to the first position when it moves. This structure can provide a certain degree of freedom of movement for the code-changing lever 24 and enable it to produce linkage cooperation with the clearing rod 251. In addition, the structure is simple and easy to assemble.

[0061] As a solution that enables the cleaning rod 251 to cooperate with the movable frame 22, a plurality of mating parts 2512 are provided on the cleaning rod 251 at positions corresponding to the movable frame 22, and a second mating inclined surface 222 is provided on the movable frame 22 at positions corresponding to the mating parts 2512. When the cleaning rod 251 moves under the guidance of the first mating inclined surface 252, the mating parts 2512 drive the movable frame 22 to move in the second direction by cooperating with the second mating inclined surface 222.

[0062] The matching piece 2512 of the clearing rod 251 and the second matching inclined surface 222 of the mobile frame 22 form an inclined surface transmission mechanism. When the lock beam 3 moves, the clearing rod 251 is guided by the first matching inclined surface 252 to produce a lateral displacement, and the matching piece 2512 slides along the second matching inclined surface 222 to convert the lateral displacement into a longitudinal (second direction) movement of the mobile frame 22. This design efficiently transmits the action of the lock beam 3 to the mobile frame 22 through mechanical transmission, ensuring the mandatory and consistent nature of the reset action.

[0063] As an embodiment of the cooperation between the moving frame 22 and the button 4, the moving frame 22 is provided with a through hole 223 for installing the button 4, a protrusion 224 corresponding to the position of the through hole 223, an unlocking portion 225 for cooperating with the brake assembly 21 for unlocking, and a spring of the moving frame 22 for driving the moving frame 22 to move. A plurality of password grooves 42 for cooperating with the protrusion 224 to enter are provided on the side of the button 4, and the password grooves 42 are staggered in the axial and circumferential directions of the button 4. When all the buttons 4 are pressed to the position where the password grooves 42 correspond to the protrusions 224, the spring of the moving frame 22 provides elastic force to push the moving frame 22, and the protrusion 224 enters the password groove 42, and the unlocking portion 225 drives the brake assembly 21 to unlock the lock beam 3, and also drives the code switching lever 24 to switch from the first position to the second position.

[0064] The axial misalignment of the password groove 42 can provide a pressing depth to form a password, and the circumferential misalignment can change the password by rotation. By rotating, the passwords of different depths correspond to the positions of the protrusions 224. At this time, the user must accurately press the button 4 to the specified position so that the protrusions 224 of all buttons 4 are aligned with the password groove 42, and the spring of the mobile frame 22 can push the mobile frame 22 to unlock. When the mobile frame 22 moves, the unlocking part 225 synchronously drives the brake assembly 21 to unlock the lock beam 3 and switch the state of the code change lever 24.

[0065] As an alternative solution for the braking assembly 21, the braking assembly 21 includes a braking lever 211 and a braking lever spring 212. The braking lever 211 is rotatably installed in the housing 1. A clamping groove 31 for the braking lever 211 to fit into is provided on the locking beam 3. The braking lever spring 212 is installed in the housing 1, and one end corresponding to the braking lever 211 abuts against the braking lever 211 to provide an elastic force for the braking lever 211 to be inserted into the clamping groove 31. The braking lever 211 is further provided with an abutting portion 213 for cooperating with the unlocking portion 225. When the unlocking portion 225 drives the braking assembly 21 to unlock the locking beam 3, the unlocking portion 225 pushes the abutting portion 213 and rotates the braking lever 211 to disengage the braking lever 211 from the clamping groove 31 and release the restriction on the locking beam 3.

[0066] The elastic force of the braking lever spring 212 forces the braking lever 211 to be inserted into the clamping groove 31 of the locking beam 3 to lock the locking beam 3. When the unlocking portion 225 of the moving frame 22 pushes the abutting portion 213 of the braking lever 211, the braking lever 211 rotates and disengages from the clamping groove 31, and the locking beam 3 is unlocked. This structure combines spring force and mechanical transmission to ensure that the locking beam 3 cannot move without entering the correct password through the key 4, improving the overall security.

[0067] In summary, the overall working process of this solution is divided into an unlocking process, a password-changing process, and a locking process, where:

[0068] 1. The unlocking process is as follows: In the locked state, press all the keys 4 to the correct depth so that the password slot 42 is aligned with the protrusion 224. At this time, the moving frame 22 moves upward under the elastic force of the moving frame 22 spring and pushes the braking lever 211 to rotate. The braking lever spring 212 is compressed, and the braking lever 211 disengages from the clamping groove 31 to release the locking of the locking beam 3. At the same time, during the upward movement of the moving frame 22, it will cooperate with the contact portion 241 of the code-changing lever 24 through the cooperation portion 227 to push the code-changing lever 24 to rotate and switch to the second position. Pull the unlocked locking beam 3 upward. During this process, the first mating inclined surface 252 will cooperate with the clearing lever 251 to move the clearing lever 251 horizontally and pull the code-changing lever 24 to rotate back from the second position to the first position. At the same time, the mating part 2512 on the clearing lever 251 will cooperate with the second mating inclined surface 222 to drive the moving frame 22 to move downward and push out and reset the key 4 through the reset shovel 254. After that, the locking beam 3 is completely pulled out to complete the unlocking.

[0069] 2. The password change process is as follows: In the locked state, press all the buttons 4 to the correct depth so that the password slot 42 is aligned with the protrusion 224. At this time, the moving frame 22 moves upward under the elastic force of the spring of the moving frame 22, and pushes the brake lever 211 to rotate. The brake lever spring 212 is compressed, and the brake lever 211 disengages from the card slot 31, releasing the lock on the lock beam 3. At the same time, during the upward movement of the moving frame 22, it will cooperate with the contact part 241 of the code-changing lever 24 through the cooperation part 227, pushing the code-changing lever 24 to rotate and switch to the second position. At this time, the position of the code-changing lever 24 corresponds to the groove 221. By pressing down the lock beam 3, the lock beam 3 drives the moving frame 22 to move downward, and the protrusion 224 of the moving frame 22 leaves the password slot 42. By moving the moving frame 22 to abut against the code-changing control board 232, the moving frame 22 can drive the code-changing board 23 to move. At this time, the limiting part 231 on the code-changing board 23 disengages from the sliding groove 41 of the button 4, and the button 4 can be rotated to change the password (that is, by circumferentially rotating to make different password slots 42 cooperate with the protrusion 224 to form a password).

[0070] The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A button padlock, comprising a housing, a locking assembly disposed within the housing, a lock beam mounted on the housing and cooperating with the locking assembly for locking, and a plurality of buttons mounted on the housing for pressing to form a password. The lock beam unlocks an object by moving in a first direction or locks by moving in a second direction and cooperating with the locking assembly. The first direction is the direction in which the lock beam disengages from the housing, and the second direction is the direction in which the lock beam is pressed into the housing. The buttons cooperate with the locking assembly to lock or unlock the lock beam, and is characterized in that, The locking assembly includes a braking assembly, which cooperates with the lock beam to lock or unlock the lock beam; a moving frame, which is used to cooperate with the key. When the key is pressed to form the correct password, the moving frame drives the braking assembly to release the lock on the lock beam; a code-changing plate, which is used to limit the rotation of the key to change the password; a code-changing lever, which is used to limit the travel of the moving frame moving towards the second direction, thereby restricting the separation of the code-changing plate from the key; When the moving frame moves towards the first direction to drive the braking assembly to release the lock on the lock beam, the moving frame also drives the code-changing lever to release the restriction on the travel of the moving frame moving towards the second direction, and drives the moving frame to move by moving the lock beam towards the second direction to release the restriction of the code-changing plate on the rotation of the key; The locking assembly further includes a reset assembly, which cooperates with the lock beam. When the lock beam moves towards the first direction or reaches the in-place position, the lock beam cooperates with the reset assembly to drive the moving frame to reset the pressed key, and drives the code-changing lever to re-limit the movement of the moving frame in the second direction.

2. The push-button padlock according to claim 1, characterized in that, A code-changing spring is arranged at the position corresponding to the code-changing plate in the housing. A restricting member is arranged at the position of the code-changing plate corresponding to the key. A chute is arranged at the position of the key corresponding to the restricting member. The code-changing spring provides the elastic force of the code-changing plate to keep the restricting member in the chute. The chute cooperates with the restricting member to restrict the axial pressing movement and circumferential rotation of the key.

3. The key padlock according to claim 2, wherein A code-changing control plate for cooperating with the edge of the moving frame to abut is arranged on the code-changing plate. When the code-changing lever releases the restriction on the travel of the moving frame moving towards the second direction and the moving frame moves towards the second direction, the moving frame abuts against the code-changing control plate and drives the code-changing plate to move to release the restriction on the rotation of the key.

4. The push-button padlock according to claim 1, characterized in that, A lever spring is arranged at the position corresponding to the code-changing lever in the housing. The code-changing lever is kept in the first position or the second position by the lever spring. The first position is the position restricting the moving frame from moving towards the second direction, and the second position is the position releasing the restriction on the moving frame from moving towards the second direction.

5. The button padlock according to claim 4, characterized in that, The code-changing lever is rotatably connected in the housing. One end of the lever spring is installed in the housing, and the other end abuts against the code-changing lever. The code-changing lever is kept in the first position or the second position by rotating and cooperating with the elastic force of the lever spring.

6. The push-button padlock according to claim 5, wherein A groove is arranged at the position of the moving frame corresponding to the code-changing lever. When the code-changing lever is kept in the second position, the end of the code-changing lever corresponds to the position of the groove and can be entered by the moving frame when moving towards the second direction; when the code-changing lever is kept in the first position, the end of the code-changing lever is misaligned with the groove and restricts the moving frame from moving towards the second direction.

7. The push-button padlock according to claim 5 or 6, characterized in that, A cooperating portion is arranged at the position of the moving frame corresponding to the code-changing lever. A contacting portion is arranged at the position of the code-changing lever corresponding to the cooperating portion. When the code-changing lever is in the first position and the moving frame moves towards the first direction, the cooperating portion pushes the contacting portion and then the code-changing lever rotates and cooperates with the lever spring to be kept in the second position.

8. The key-operated padlock according to claim 1, characterized in that, The reset assembly includes a clearing rod, a first mating inclined surface provided on the lock beam, and a reset spring provided at the end of the clearing rod; a reset shovel is provided on the moving frame at a position corresponding to the bottom of the button. When the lock beam moves in the first direction after unlocking, the first mating inclined surface guides the clearing rod to move, drives the moving frame to move in the second direction through the clearing rod, and resets the pressed button through the reset shovel, and the reset spring is compressed.

9. The key padlock according to claim 8, characterized in that, When the clearing rod drives the moving frame to move in the second direction, the clearing rod also drives the code-changing lever to switch from the second position to the first position.

10. The push-button padlock according to claim 9, characterized in that, A strip-shaped hole is provided on the clearing rod at a position corresponding to the code-changing lever, and a driving block is provided on the code-changing lever at a position corresponding to the strip-shaped hole. When the code-changing lever switches from the first position to the second position, the driving block moves in the strip-shaped hole. When the clearing rod drives the moving frame to move in the second direction, the clearing rod cooperates with the driving block through the strip-shaped hole to switch the code-changing lever from the first position to the second position.

11. The push-button padlock according to claim 8 or 9 or 10, characterized in that, A plurality of mating parts are provided on the clearing rod at a position corresponding to the moving frame, and a second mating inclined surface is provided on the moving frame at a position corresponding to the mating parts. When the clearing rod moves under the guiding action of the first mating inclined surface, the mating parts drive the moving frame to move in the second direction through cooperation with the second mating inclined surface.

12. The button padlock according to claim 1, characterized in that, The moving frame is provided with a through hole for installing the button, a protrusion corresponding to the through hole position, an unlocking part for cooperating with the braking assembly to unlock, and a moving frame spring for driving the moving frame to move. A plurality of password slots for cooperating with the protrusions to enter are provided on the side surface of the button, and the password slots are misaligned in both the axial and circumferential directions of the button. When all the buttons are pressed until the password slots correspond to the protrusion positions, the moving frame spring provides an elastic force to push the moving frame, and the protrusions enter the password slots. The unlocking part drives the braking assembly to unlock the lock beam and also drives the code-changing lever to switch from the first position to the second position.

13. The push-button padlock according to claim 12, characterized in that, The braking assembly includes a braking rod and a braking rod spring. The braking rod is rotatably installed in the housing. A clamping groove for cooperating with the braking rod to be inserted is provided on the lock beam. The braking rod spring is installed in the housing and abuts against one end of the braking rod corresponding to it to provide an elastic force for the braking rod to be inserted into the clamping groove; the braking rod is also provided with an abutting part for cooperating with the unlocking part. When the unlocking part drives the braking assembly to unlock the lock beam, the unlocking part pushes the abutting part and rotates the braking rod to disengage the braking rod from the clamping groove and release the restriction on the lock beam.

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