Padlock

Abstract

The invention discloses a padlock. The padlock comprises a lock body; the lock beam is provided with a U-shaped section which can form an annular shape with the lock body, and locking grooves are formed in the two opposite sides of the U-shaped section; the two lock tongues are arranged on the lock body in a back-to-back sliding manner and are connected with first elastic pieces for driving the two lock tongues to slide back to back so as to extend into the locking grooves; the shifting fork is arranged on the lock body in a swinging manner; the password wheel set is rotationally arranged on the lock body and is provided with an unlocking part and a locking part which can be in contact with the lower part of the shifting fork; the second elastic piece is connected with the shifting fork and can drive the upper portion of the shifting fork to swing to the position between the two lock tongues and drive the lower portion of the shifting fork to keep abutting against the unlocking part or the locking part; the electric clutch mechanism is arranged in the lock body and can drive the upper part of the shifting fork to leave the space between the two lock tongues; and the recognition module is used for controlling the electric clutch mechanism to act. Therefore, the functions of electric unlocking and password wheel set unlocking are integrated, emergency unlocking can be achieved through the password wheel set without a key in the case of faults or power failure, and use convenience is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of locks, and in particular to a padlock. Background Art

[0002] Padlocks are the oldest and largest family of locks. It can be said that other locks are derived from padlocks. The lock body of the padlock is equipped with a buckled annular lock beam, so that the padlock is directly buckled with the lock body through the lock beam to form a closed lock.

[0003] In the related art, in order to facilitate users to unlock the padlock without a key, the padlock is set to an electric opening method such as an electronic password or fingerprint recognition. In order to prevent the electric opening function from failing and causing the padlock to be unable to be opened, some electric padlocks still retain the key unlocking structure. Users still need to carry keys to complete emergency unlocking, which is inconvenient to use.

[0004] In addition, the internal space of the padlock is extremely limited. The key unlocking and electric unlocking structures have occupied the entire internal space of the padlock, and the structure is very complicated and cannot be further expanded or replaced by other unlocking methods. Summary of the invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a padlock with integrated electric unlocking and password wheel unlocking, which can be unlocked in an emergency without a key, thereby improving the convenience of use.

[0006] A padlock according to an embodiment of the present invention comprises: a lock body; a lock beam movably arranged on the lock body, the lock beam having a U-shaped section that can be surrounded by the lock body to form a ring, and locking grooves are provided on opposite sides of the U-shaped section; two lock tongues slidably arranged on the lock body in opposite directions, and the two lock tongues are connected to a first elastic member that drives the two to slide in opposite directions to extend into the locking grooves; a shift fork that can be swingably arranged on the lock body; a cipher wheel group rotatably arranged on the lock body, the cipher wheel group having an unlocking portion and a locking portion that can contact the lower part of the shift fork; a second elastic member connected to the shift fork and capable of driving the upper part of the shift fork to swing between the two lock tongues and driving the lower part of the shift fork to remain against the unlocking portion or the locking portion; an electric clutch mechanism arranged in the lock body and capable of driving the upper part of the shift fork to leave between the two lock tongues; an identification module electrically connected to the electric clutch mechanism and used to control the action of the electric clutch mechanism.

[0007] A padlock according to an embodiment of the present invention has at least the following beneficial effects:

[0008] The padlock with the above structure can control the upper part of the fork to leave between the two lock tongues by using the combination wheel group and the electric clutch mechanism, thereby integrating the functions of electric unlocking and combination wheel group unlocking. When the electric clutch mechanism fails or loses power, the combination wheel group can be used for emergency unlocking without a key, thereby improving the convenience of use.

[0009] In some embodiments of the present invention, the locking groove is a horizontally open V-shaped groove, the end of the lock tongue close to the V-shaped groove is provided with a convex portion corresponding to the V-shaped groove, the end surface of the lock tongue away from the convex portion is provided with a first limiting portion, the upper part of the shift fork is provided with a second limiting portion that can abut against the first limiting portion to prevent the shift fork from leaving between the two lock tongues, when the padlock is in a locked state, the convex portion abuts against the downward slope of the V-shaped groove so that there is a height gap and a horizontal gap between the convex portion and the V-shaped groove, and when the password wheel group is in an unlocked state, the lock beam can move slightly downward to make the two lock tongues move away from each other and make the second limiting portion disengage from the first limiting portion.

[0010] In some embodiments of the present invention, the electric clutch mechanism includes a motor and a thumbwheel arranged on the output shaft of the motor, the thumbwheel is circumferentially spaced with a first eccentric portion and a second eccentric portion, the distance between the second eccentric portion and the axis of the output shaft of the motor is greater than the distance between the first eccentric portion and the axis of the output shaft of the motor, the shift fork can move up and down and swing back and forth relative to the lock body, the shift fork has a driving portion that contacts the first eccentric portion or the second eccentric portion, the second elastic member includes a tension spring connected between the middle portion of the shift fork and the lock body and a compression spring that drives the shift fork to reset downward, and the first eccentric portion acts on the driving portion to lift the second limiting portion to be misaligned with the first limiting portion.

[0011] In some embodiments of the present invention, the driving portion includes a protrusion protruding toward the thumbwheel, and the surface of the protrusion is concavely provided with a driving groove for accommodating the first eccentric portion, and the upper end of the driving groove is provided with a side stop portion. After the first eccentric portion acts upward on the side stop portion to lift it to the point where the second limiting portion and the first limiting portion are misaligned up and down, the first eccentric portion leaves the driving groove and the side stop portion, and the second eccentric portion can abut against the protrusion to drive the upper portion of the fork away from between the two locking tongues.

[0012] In some embodiments of the present invention, a travel switch is provided in the lock body and is located above the shift block. The travel switch is electrically connected to the electric clutch mechanism. When the second eccentric portion abuts against the protrusion, the first eccentric portion can trigger the travel switch.

[0013] In some embodiments of the present invention, a first vertical bar and a second vertical bar are formed at intervals along the front-to-back direction on the end surface of the locking tongue away from the convex portion, a limiting groove constituting the first limiting portion is defined between the first vertical bar and the second vertical bar, and the second limiting portion is formed on the side wall of the upper end of the fork to form a vertical convex bar extending into the limiting groove, and the height dimension of the vertical convex bar is smaller than the height dimension of the first vertical bar.

[0014] In some embodiments of the present invention, the password wheel group includes a horizontal axis member horizontally arranged at the lower portion of the lock body, and a plurality of password gears rotating around the axial direction are passed through the horizontal axis member, and an unlocking disk coaxial with the lateral portion of each of the password gears is provided, and a gap space for accommodating the unlocking disk is provided between two adjacent password gears, and the unlocking disk has an arc surface constituting the locking portion and a planar portion constituting the unlocking portion, and a plurality of push rods corresponding to the unlocking disk are provided at the lower portion of the fork, and when all the push rods are in contact with the corresponding planar portions, the second elastic member drives the upper portion of the fork to leave between the two lock tongues.

[0015] In some embodiments of the present invention, the upper portion of the lock body is provided with a slide groove for the lock tongue to slide back and forth left and right, the lower portion of the lock body is provided with a first installation cavity for accommodating the password wheel group, and the middle portion of the lock body is provided with a second installation cavity for accommodating the electric clutch mechanism and the identification module, the second installation cavity and the first installation cavity are arranged opposite to each other in the front-to-back direction and are connected through a channel, and the output end of the electric clutch mechanism extends from the channel to contact the fork.

[0016] In some embodiments of the present invention, a sleeve is provided in the middle portion of the cipher gear for axial sliding along the transverse axis, the cipher gear has a plurality of meshing grooves circumferentially distributed around the axis of the transverse axis, all of the sleeves are arranged in sequence and installed on the transverse axis, the outer wall of the sleeve is provided with a meshing portion that can be combined with any of the meshing grooves, the unlocking disk is formed on the outside of the sleeve, one end of the transverse axis is connected to a third elastic member that drives the sleeve to mesh with the corresponding cipher gear, and the transverse axis can drive the sleeve to separate from the corresponding cipher gear and make the cipher gear rotate relative to the sleeve.

[0017] In some embodiments of the present invention, the lock beam is provided with an insert column extending downward from one end of the U-shaped section, the lock body is provided with a column hole for the insertion column to be lifted, moved and rotated, a fourth elastic member is provided in the column hole for driving the lock beam to move upward, and the lower end of the insert column is provided with a pushing portion capable of contacting one end of the horizontal axis away from the third elastic member.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 It is a structural schematic diagram of an embodiment of a padlock of the present invention in a locked state;

[0021] Figure 2 for Figure 1 Schematic diagram of the internal structure of the embodiment with the lock body removed;

[0022] Figure 3 for Figure 1 A cross-sectional schematic diagram of a padlock of an embodiment being unlocked using a combination wheel assembly;

[0023] Figure 4 for Figure 1 Another cross-sectional schematic diagram of the padlock of the embodiment being unlocked using the combination wheel assembly;

[0024] Figure 5 for Figure 1 A schematic diagram of the structure in which the lock beam, lock tongue, shift fork and password wheel assembly of the embodiment are separated;

[0025] Figure 6 for Figure 1 A schematic diagram of the partial structure of the padlock of the embodiment when being unlocked by the electric clutch mechanism.

[0026] Reference numerals:

[0027] Lock body 100; slide groove 110; first installation cavity 120; second installation cavity 130; lock beam 200; locking groove 210; plug-in column 220; push portion 230; lock tongue 300; protrusion 310; first limit portion 320; first elastic member 330; shift fork 400; second limit portion 410; drive portion 420; drive groove 421; side stop portion 422; push rod 430; password wheel assembly 500; horizontal shaft member 510 ; Code gear 520; Engagement groove 521; Unlocking disk 530; Locking portion 531; Unlocking portion 532; Bushing 540; Engagement portion 541; Third elastic member 550; Second elastic member 600; Tension spring 610; Compression spring 620; Electric clutch mechanism 700; Motor 710; Dial wheel 720; First eccentric portion 721; Second eccentric portion 722; Identification module 800; Travel switch 900; Fourth elastic member 910. DETAILED DESCRIPTION

[0028] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0029] In the description of the present invention, if there is a description of first, second, third, fourth, fifth, etc., it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the sequence of the indicated technical features.

[0030] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In the present invention, unless otherwise clearly defined, the words "set", "install", "connect" and the like should be understood in a broad sense, for example, they can be directly connected or indirectly connected through an intermediate medium; they can be fixedly connected or detachably connected or integrally formed; they can be mechanically connected; they can be the internal connection of two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0032] Reference Figures 1 to 6A padlock according to an embodiment of the present invention comprises: a lock body 100; a lock beam 200, movably disposed on the lock body 100, the lock beam 200 having a U-shaped section that can be enclosed with the lock body 100 to form a ring, and locking grooves 210 are provided on opposite sides of the U-shaped section; two lock tongues 300, slidably disposed on the lock body 100 in opposite directions, and the two lock tongues 300 are connected to a first elastic member 330 that drives the two to slide in opposite directions to extend into the locking grooves 210; a shift fork 400, swivellingly disposed on the lock body 100; a cipher wheel set 500, rotatably disposed on the lock body 100, and the cipher wheel set 500 has An unlocking portion 532 and a locking portion 531 that can be in contact with the lower portion of the fork 400; a second elastic member 600, connected to the fork 400, capable of driving the upper portion of the fork 400 to swing between the two lock tongues 300 and driving the lower portion of the fork 400 to remain against the unlocking portion 532 or the locking portion 531; an electric clutch mechanism 700, disposed in the lock body 100, capable of driving the upper portion of the fork 400 to leave between the two lock tongues 300; an identification module 800, electrically connected to the electric clutch mechanism 700, for controlling the action of the electric clutch mechanism 700.

[0033] Among them, the lock beam 200 of a general padlock can be lifted, moved and rotated relative to the lock body 100, see Figure 1 and Figure 2 When the U-shaped section is inserted into the lock body 100, the two locking tongues 300 are respectively extended into the two locking grooves 210 in opposite directions under the driving action of the first elastic member 330, and the second elastic member 600 drives the upper part of the shift fork 400 to swing between the two locking tongues 300, thereby preventing the two locking tongues 300 from approaching each other to escape from the locking grooves 210. At this time, the shift fork 400 is pressed against the locking portion 531 of the combination wheel set 500 under the action of the second elastic member 600, and the padlock is in a locked state. Figures 3 to 5 When the padlock needs to be unlocked, if the combination wheel set 500 is used for unlocking, when the combination wheel set 500 inputs the correct combination, the unlocking portion 532 on the combination wheel set 500 can be aligned with the lower part of the fork 400. At this time, the fork 400 can be swung to the upper part of the fork 400 and leave between the two lock tongues 300 under the action of the second elastic member 600, and the lock beam 200 can rise and rotate relative to the lock body 100. Figure 6If the electric clutch mechanism 700 is used to unlock, the user first inputs the correct identity information into the identification module 800. When the identity information is verified, the electric clutch mechanism 700 can drive the fork 400 to swing to the upper part of the fork 400 directly leaving between the two lock tongues 300. The padlock with the above structure uses the password wheel set 500 and the electric clutch mechanism 700 to control the upper part of the fork 400 to leave between the two lock tongues 300, thereby integrating the functions of electric unlocking and password wheel set 500 unlocking. When the electric clutch mechanism 700 fails or loses power, the password wheel set 500 can be used for emergency unlocking without a key, thereby improving the convenience of use. It can be understood that the identification module 800 is used to identify and verify whether the identity information input by the user conforms to the preset identity information. The identification module 800 can be a structure in the form of fingerprint recognition, card swiping recognition, Bluetooth opening, etc., and can be configured according to user needs.

[0034] See also Figure 2 and Figure 5In some embodiments of the present invention, the locking groove 210 is a horizontally opened V-shaped groove, and the end of the lock tongue 300 close to the V-shaped groove is provided with a convex portion 310 corresponding to the V-shaped groove, and the end surface of the lock tongue 300 away from the convex portion 310 is provided with a first limiting portion 320, and the upper part of the fork 400 is provided with a second limiting portion 410 that can abut against the first limiting portion 320 to prevent the fork 400 from leaving the two lock tongues 300. When the padlock is in a locked state, the convex portion 310 abuts against the downslope surface of the V-shaped groove so that there is a height gap and a horizontal gap between the convex portion 310 and the V-shaped groove. When the password wheel set 500 is in an unlocked state, the lock beam 200 can move downward slightly to make the two lock tongues 300 move away from each other and make the second limiting portion 410 disengage from the first limiting portion 320. It can be understood that when the correct password is input into the combination wheel set 500, the fork 400 has a movement tendency to swing to the upper part of the fork 400 and leave between the two locking tongues 300 under the driving action of the second elastic member 600, but at this time the second limit portion 410 abuts against the first limit portion 320 and cannot directly unlock the padlock. The user needs to apply pressure on the lock beam 200 to make the lock beam 200 move slightly downward, and the V-shaped groove moves slightly downward relative to the protrusion 310 until the protrusion 310 is aligned with the bottom of the V-shaped groove. Under the action of the first elastic member 330, the convex parts 310 of the two locking tongues 300 move away from each other to insert into the bottom of the V-shaped groove, and the height gap and the horizontal gap are eliminated. At this time, the first limiting part 320 and the second limiting part 410 are misaligned in the left and right directions, and the first limiting part 320 cannot block the second limiting part 410. The upper part of the fork 400 can swing to leave between the two locking tongues 300. When the lock beam 200 rises relative to the lock body 100, the two locking tongues 300 can approach each other to unlock the padlock. The above structure can prevent strangers from directly opening the padlock by trial and error to obtain the correct password, which is conducive to further improving the anti-theft function and has a very clever structure.

[0035] It should be noted that when the padlock uses the first limiting portion 320 and the second limiting portion 410 to improve the anti-theft performance, the electric clutch mechanism 700 also needs to realize the unlocking function accordingly. Figure 5 and Figure 6In some embodiments of the present invention, the electric clutch mechanism 700 includes a motor 710 and a dial 720 provided on the output shaft of the motor 710, the dial 720 is circumferentially provided with a first eccentric portion 721 and a second eccentric portion 722, the distance between the second eccentric portion 722 and the axis of the output shaft of the motor 710 is greater than the distance between the first eccentric portion 721 and the axis of the output shaft of the motor 710, the fork 400 can move up and down and swing back and forth relative to the lock body 100, the fork 400 has a driving portion 420 that contacts the first eccentric portion 721 or the second eccentric portion 722, the second elastic member 600 includes a tension spring 610 connected between the middle portion of the fork 400 and the lock body 100 and a compression spring 620 that drives the fork 400 to reset downward, the first eccentric portion 721 acts on the driving portion 420 to lift the second limiting portion 410 and the first limiting portion 320 to be misaligned up and down. It can be understood that after the identity information input by the user is verified, the motor drives the dial 720 to rotate, and the first eccentric portion 721 first contacts the driving portion 420 to slightly lift the fork 400, and the compression spring 620 is compressed. The second limit portion 410 on the fork 400 and the first limit portion 320 of the lock tongue 300 are misaligned in the height direction. At this time, the upper part of the fork 400 is still in the area between the two lock tongues 300, and then the dial 720 continues to rotate until the second eccentric portion 722 contacts the driving portion 420, and the fork 400 can swing in the direction of stretching the tension spring 610, so that the upper part of the fork 400 can be separated from the area between the two lock tongues 300.

[0036] See also Figure 6In some embodiments of the present invention, the driving portion 420 includes a protrusion protruding toward the dial wheel 720, and the surface of the protrusion is concavely provided with a driving groove 421 for accommodating the first eccentric portion 721, and the upper end of the driving groove 421 is provided with a side block portion 422. After the first eccentric portion 721 acts upward on the side block portion 422 to lift the second limiting portion 410 and the first limiting portion 320 to be misaligned up and down, the first eccentric portion 721 leaves the driving groove 421 and the side block portion 422, and the second eccentric portion 722 can abut against the protrusion to drive the upper part of the fork 400 away from between the two locking tongues 300. When the locking cam 720 is in the unlocking state, the locking cam 721 is in the unlocking state, and the locking cam 722 is in the unlocking state, so that the locking cam 720 is locked and the locking cam 722 is locked.

[0037] See also Figure 6 In some embodiments of the present invention, a travel switch 900 is provided in the lock body 100 and is located above the shift block. The travel switch 900 is electrically connected to the electric clutch mechanism 700. When the second eccentric portion 722 abuts against the convex block, the first eccentric portion 721 can trigger the travel switch 900. It can be understood that when the electric clutch mechanism 700 is used to unlock the padlock, the first eccentric portion 721 first lifts the shift fork 400 to a certain height, and then the second eccentric portion 722 abuts against the convex portion 310 to push the upper part of the shift fork 400 out of the area between the two lock tongues 300. At the same time, the first eccentric portion 721 triggers the travel switch 900, thereby controlling the motor 710 to pause for a certain period of time. After the lock beam 200 rises to unlock, the motor 710 reverses and resets. Setting the travel switch 900 can avoid the motor 710 from being powered for a long time, reduce the power consumption of the padlock, and improve the endurance of the padlock.

[0038] In some embodiments of the present invention, the locking tongue 300 is away from the reference Figure 5The first and second vertical bars are formed at intervals along the front-to-back direction on the end surface of the convex portion 310, and a limiting groove constituting the first limiting portion 320 is defined between the first and second vertical bars. The second limiting portion 410 is formed on the side wall of the upper end of the fork 400 to extend into the vertical convex bar of the limiting groove, and the height dimension of the vertical convex bar is smaller than the height dimension of the first vertical bar. When the first limiting portion 320 and the second limiting portion 410 of the above structure are adopted, it is conducive to achieving the misalignment of the second limiting portion 410 relative to the first limiting portion 320 in the height direction, and it is also conducive to achieving the misalignment of the second limiting portion 410 relative to the first limiting portion 320 in the left-right direction, thereby simultaneously satisfying the requirements of improving the anti-theft performance when unlocking using the electric clutch mechanism 700 and the password wheel assembly 500.

[0039] See also Figures 3 to 5 In some embodiments of the present invention, the password wheel group 500 includes a horizontal shaft member 510 horizontally arranged at the lower part of the lock body 100, and a plurality of password gears 520 rotating around the axial direction are passed through the horizontal shaft member 510, and an unlocking disk 530 coaxial with the password gear 520 is provided on the side of each password gear 520, and a gap space for accommodating the unlocking disk 530 is provided between two adjacent password gears 520, and the unlocking disk 530 has an arc surface constituting the locking portion 531 and a plane portion constituting the unlocking portion 532, and a plurality of push rods 430 corresponding to the unlocking disk 530 are provided at the lower part of the fork 400, that is, the push rods 430 are located in the gap space, and when all the push rods 430 are in contact with the corresponding plane portions, the second elastic member 600 drives the upper part of the fork 400 to leave between the two lock tongues 300. It should be noted that when the password entered by the user is incorrect, at least part of the arc surface abuts against the corresponding push rod 430, the lower part of the fork 400 is pushed out in the direction away from the horizontal axis 510, and the upper part of the fork 400 swings toward the area between the two lock tongues 300. When the password entered by the user is correct, all the planar parts are coplanar, all the push rods 430 abut against their respective corresponding planar parts, and the fork 400 swings under the action of the second elastic member 600 to make the upper part of the fork 400 leave the area between the two lock tongues 300.

[0040] See also Figure 3In some embodiments of the present invention, a slide groove 110 is provided at the upper part of the lock body 100 for the lock tongue 300 to slide back and forth, a first installation cavity 120 for accommodating the password wheel set 500 is provided at the lower part of the lock body 100, and a second installation cavity 130 for accommodating the electric clutch mechanism 700 and the identification module 800 is provided at the middle part of the lock body 100. The second installation cavity 130 and the first installation cavity 120 are arranged opposite to each other in the front-to-back direction and are connected through a channel. The output end of the electric clutch mechanism 700 extends from the channel to contact the upper part of the fork 400. An opening is provided at the side of the slide groove 110 for the upper end of the fork 400 to enter and exit, and the lower end of the fork 400 is located in the first installation cavity 120. This structural layout makes full use of the volume space of the lock body 100, and can accommodate the electric clutch mechanism 700, the password wheel set 500, the fork 400, etc. without changing the size of the lock body 100 of the padlock, and the structure is very simple and compact. In this embodiment, the electric clutch mechanism 700 and the battery for powering the electric clutch mechanism 700 are both installed in the second installation cavity 130, the identification module 800 is arranged at the opening of the second installation cavity 130, and the lock body 100 further includes a protective cover wrapped around the outside of the first installation cavity 120 and the second installation cavity 130, and the identification module 800 is exposed from the protective cover. Of course, in order to charge the battery, the side wall of the lock body 100 is also provided with a charging socket, which is connected to the battery through the charging module.

[0041] See also Figure 5In some embodiments of the present invention, a sleeve 540 is provided in the middle part of the cipher gear 520 for axial sliding along the transverse shaft 510, and the cipher gear 520 is provided with a plurality of engagement grooves 521 circumferentially distributed around the axis of the transverse shaft 510 at intervals, and all the sleeves 540 are installed on the transverse shaft 510 in sequence, and the outer wall of the sleeve 540 is provided with an engagement portion 541 that can be combined with any of the engagement grooves 521, and the unlocking disk 530 is formed on the outside of the sleeve 540, and one end of the transverse shaft 510 is connected to a third elastic member 550 that drives the sleeve 540 to engage with the corresponding cipher gear 520, and the transverse shaft 510 can drive the sleeve 540 to separate from the corresponding cipher gear 520 and make the cipher gear 520 rotate relative to the sleeve 540. When the unlocking code of the combination wheel set 500 needs to be reset, the original code is first input to unlock the door using the combination wheel set 500. At this time, all the planar portions are coplanar to abut against their respective push rods 430. At this time, the lock beam 200 can rise and rotate relative to the lock body 100. Then the user moves the transverse shaft 510 in the direction to overcome the elastic force of the third elastic member 550. The transverse shaft 510 drives each sleeve 540 to separate from the corresponding code gear 520. At this time, the code gear 520 can idle relative to the sleeve 540. After the user sets the desired code combination, no force is applied to the transverse shaft 510. The transverse shaft 510 and the sleeve 540 are reset and moved axially together under the action of the third elastic member 550. Each sleeve 540 can be re-engaged with the code gear 520, thereby realizing the change of the code.

[0042] See also Figure 3 and Figure 5In some embodiments of the present invention, in order to further improve the convenience of changing the password of the password wheel group 500, the lock beam 200 is provided with a plug-in column 220 extending downward at one end of the U-shaped section, and the lock body 100 is provided with a column hole for the plug-in column 220 to be lifted, moved and rotated, and a fourth elastic member 910 is provided in the column hole to drive the lock beam 200 to move upward, and the lower end of the plug-in column 220 is provided with a pushing portion 230 that can contact the end of the cross-axis member 510 away from the third elastic member 550. Specifically, when the fork 400 swings to the point where the upper part of the fork 400 leaves the area between the two lock tongues 300, the lock beam 200 can bounce upward under the driving action of the fourth elastic member 910, so that the two lock tongues 300 compress the first elastic member 330 and approach each other, and the lock tongue 300 leaves the locking groove 210. Then the user rotates the lock beam 200 to rotate the other end of the U-shaped section to the outside of the lock body 100. At this time, applying downward pressure on the lock beam 200 can drive the plug-in column 220 to move downward along the column hole until the push portion 230 can align with the end of the cross-axis member 510. The push portion 230 is used to push the cross-axis member 510 and the sleeve 540 on the cross-axis member 510 toward the compressed third elastic member 550, thereby achieving the purpose of changing the password. In this embodiment, the outer circular arc wall at the lower end of the plug-in column 220 constitutes the pushing portion 230, and the outer peripheral wall at the lower end of the plug-in column 220 has a default plane. The radial dimension between the default plane and the axis of the plug-in column 220 is smaller than the radial dimension between the pushing portion 230 and the axis of the plug-in column 220. When the user rotates the lock beam 200 counterclockwise by 90° and presses it downward until the default plane contacts the end face of the cross-axis member 510, the user rotates the lock beam 200 counterclockwise by 90° again to allow the pushing portion 230 to move the cross-axis member 510 in the direction of compressing the third elastic member 550, and the password gear 520 can be separated from the sleeve 540 to change the password.

[0043] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0044] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A padlock, characterized in that: include: Lock body (100); A lock beam (200) is movably arranged on the lock body (100), the lock beam (200) having a U-shaped section capable of forming a ring with the lock body (100), and locking grooves (210) are provided on opposite sides of the U-shaped section; Two locking tongues (300) are slidably disposed on the lock body (100) in opposite directions, and the two locking tongues (300) are connected to a first elastic member (330) that drives the two locking tongues (300) to slide in opposite directions to extend toward the locking groove (210); A shift fork (400) is swingably disposed on the lock body (100); A cipher wheel set (500) rotatably disposed on the lock body (100), the cipher wheel set (500) comprising an unlocking portion (532) and a locking portion (531) that can contact the lower portion of the shift fork (400); A second elastic member (600) connected to the shift fork (400) and capable of driving the upper portion of the shift fork (400) to swing between the two locking tongues (300) and driving the lower portion of the shift fork (400) to remain against the unlocking portion (532) or the locking portion (531); An electric clutch mechanism (700) is disposed in the lock body (100) and is capable of driving the upper portion of the shift fork (400) to leave between the two lock tongues (300); The identification module (800) is electrically connected to the electric clutch mechanism (700) and is used to control the action of the electric clutch mechanism (700).

2. A padlock according to claim 1, characterized in that: The locking groove (210) is a horizontally open V-shaped groove, and one end of the lock tongue (300) close to the V-shaped groove is provided with a convex portion (310) corresponding to the V-shaped groove. The end surface of the lock tongue (300) away from the convex portion (310) is provided with a first limiting portion (320), and the upper part of the shift fork (400) is provided with a second limiting portion (410) capable of abutting against the first limiting portion (320) to prevent the shift fork (400) from leaving between the two lock tongues (300). When the padlock is in a locked state, the convex portion (310) abuts against the downslope surface of the V-shaped groove so that there is a height gap and a horizontal gap between the convex portion (310) and the V-shaped groove. When the password wheel set (500) is in an unlocked state, the lock beam (200) can move slightly downward to make the two lock tongues (300) move away from each other so that the second limiting portion (410) is separated from the first limiting portion (320).

3. A padlock according to claim 2, characterized in that: The electric clutch mechanism (700) comprises a motor (710) and a dial (720) arranged on the output shaft of the motor (710); the dial (720) is provided with a first eccentric portion (721) and a second eccentric portion (722) at intervals on the circumference; the distance between the second eccentric portion (722) and the axis of the output shaft of the motor (710) is greater than the distance between the first eccentric portion (721) and the axis of the output shaft of the motor (710); the shift fork (400) can move up and down and forward and backward relative to the lock body (100). The shift fork (400) is provided with a driving portion (420) contacting the first eccentric portion (721) or the second eccentric portion (722), the second elastic member (600) comprises a tension spring (610) connected between the middle portion of the shift fork (400) and the lock body (100) and a compression spring (620) driving the shift fork (400) to return downward, and the first eccentric portion (721) acts on the driving portion (420) to lift the second limiting portion (410) and the first limiting portion (320) to be displaced up and down.

4. A padlock according to claim 3, characterized in that: The driving portion (420) comprises a convex block protruding toward the dial wheel (720); a driving groove (421) for accommodating the first eccentric portion (721) is concavely arranged on the surface of the convex block; a side stop portion (422) is arranged at the upper end of the driving groove (421); after the first eccentric portion (721) acts upward on the side stop portion (422) to lift the second limiting portion (410) and the first limiting portion (320) to be misaligned up and down, the first eccentric portion (721) leaves the driving groove (421) and the side stop portion (422); the second eccentric portion (722) can abut against the convex block to drive the upper portion of the shift fork (400) away from between the two locking tongues (300).

5. A padlock according to claim 4, characterized in that: The lock body (100) is provided with a travel switch (900) located above the shift block. The travel switch (900) is electrically connected to the electric clutch mechanism (700). When the second eccentric portion (722) abuts against the protrusion, the first eccentric portion (721) can trigger the travel switch (900).

6. A padlock according to claim 2, characterized in that: A first vertical bar and a second vertical bar are formed at intervals along the front-to-back direction on the end surface of the locking tongue (300) away from the convex portion (310); a limiting groove constituting the first limiting portion (320) is defined between the first vertical bar and the second vertical bar; the second limiting portion (410) is formed on the side wall of the upper end of the shift fork (400) to extend into the vertical convex bar of the limiting groove; and the height dimension of the vertical convex bar is smaller than the height dimension of the first vertical bar.

7. A padlock according to claim 1, characterized in that: The cipher wheel assembly (500) comprises a transverse shaft (510) horizontally arranged at the lower part of the lock body (100), a plurality of cipher gears (520) rotating around the axial direction are passed through the transverse shaft (510), a coaxial unlocking disk (530) is arranged on the side of each cipher gear (520), a gap space for accommodating the unlocking disk (530) is provided between two adjacent cipher gears (520), the unlocking disk (530) has an arc surface constituting the locking part (531) and a plane part constituting the unlocking part (532), a plurality of push rods (430) corresponding to the unlocking disk (530) are arranged at the lower part of the shift fork (400), and when all the push rods (430) are in contact with the corresponding plane parts, the second elastic member (600) drives the upper part of the shift fork (400) to leave between the two lock tongues (300).

8. A padlock according to claim 7, characterized in that: The upper part of the lock body (100) is provided with a slide groove (110) for the lock tongue (300) to slide back and forth, the lower part of the lock body (100) is provided with a first installation cavity (120) for accommodating the password wheel set (500), and the middle part of the lock body (100) is provided with a second installation cavity (130) for accommodating the electric clutch mechanism (700) and the identification module (800), the second installation cavity (130) and the first installation cavity (120) are arranged opposite to each other in the front-to-back direction and are connected through a channel, and the output end of the electric clutch mechanism (700) extends from the channel to contact the shift fork (400).

9. A padlock according to claim 7, characterized in that: A shaft sleeve (540) is provided in the middle of the cipher gear (520) so as to slide along the axial direction of the transverse shaft (510); the cipher gear (520) is provided with a plurality of meshing grooves (521) distributed circumferentially at intervals around the axis of the transverse shaft (510); all the shaft sleeves (540) are sequentially arranged and installed on the transverse shaft (510); and the outer wall of the shaft sleeve (540) is provided with a meshing portion (521) which can be combined with any of the meshing grooves (521). 41), the unlocking disk (530) is formed on the outside of the sleeve (540), one end of the transverse shaft (510) is connected to a third elastic member (550) for driving the sleeve (540) to engage with the corresponding cipher gear (520), and the transverse shaft (510) can drive the sleeve (540) to separate from the corresponding cipher gear (520) and make the cipher gear (520) rotate relative to the sleeve (540).

10. A padlock according to claim 9, characterized in that: The lock beam (200) is provided with an insert column (220) extending downward at one end of the U-shaped section, and the lock body (100) is provided with a column hole for the insert column (220) to be lifted, moved and rotated, and a fourth elastic member (910) is provided in the column hole for driving the lock beam (200) to move upward, and a push portion (230) is provided at the lower end of the insert column (220) capable of contacting an end of the transverse shaft member (510) away from the third elastic member (550).

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