An electronic smart padlock

Abstract

The present invention relates to the field of locks, and in particular to an electronic smart padlock, comprising a housing, a lock nose, a first lock tongue, a second lock tongue, a first lock rope, a connecting column and a limiting assembly, wherein the lock nose is slidably arranged in the housing and can be separated from the housing, the first lock tongue and the second lock tongue are slidably arranged in the housing and a first spring is arranged between the two, and the second lock tongue can be engaged with the lock nose; the connecting column can penetrate the housing and be slidably connected with the housing, the two ends of the first lock rope are respectively threadedly connected with the connecting column, and the limiting assembly is used to limit the connecting column to be inside the housing when the second lock tongue is in a normal state, and to allow the connecting column to extend out of the housing when the first spring is stretched in a fault state of the second lock tongue. The first lock tongue and the second lock tongue, the connecting column and the limiting assembly are arranged, and when the second lock tongue cannot be separated from the lock nose, the first lock tongue can move alone, the first lock rope can pull the connecting column to slide out from the inside of the housing, and then separate from the connecting column by rotation, thereby completing the unlocking.

Description

Technical Field

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

[0002] In the field of modern security, electronic smart padlocks, as an upgraded alternative to traditional mechanical padlocks, have brought users greater convenience and stronger confidentiality with their unlocking methods that are free from the restrictions of traditional keys, such as card swiping, fingerprint recognition and other technologies. They have been widely used in many scenarios, including homes, offices, logistics warehousing, and shared equipment.

[0003] However, although the electronic smart padlock has achieved intelligent changes in the unlocking method, it still relies on mechanical structure to complete the unlocking and locking actions. The matching accuracy and reliability of the lock tongue and lock nose are directly related to the performance of the entire padlock. In actual use, due to the complex and diverse environment in which the padlock is located, impurities such as dust and water vapor can easily invade the interior of the lock body, or after long-term and frequent opening and closing operations, the mechanical parts of the lock tongue and lock nose may be worn and deformed, which often leads to the problem of the lock tongue getting stuck. Once the lock tongue is stuck, even if the electronic smart padlock has advanced electronic unlocking functions such as card swiping and fingerprint recognition, it cannot successfully complete the unlocking operation, which will cause great inconvenience and trouble in actual production and life. For example, during logistics transportation, the delivery of goods may be delayed because the padlock cannot be opened. Summary of the invention

[0004] Based on this, it is necessary to provide an electronic smart padlock to address the problem that the current smart padlock cannot be unlocked due to a lock tongue failure.

[0005] The above purpose is achieved through the following technical solutions:

[0006] An electronic smart padlock comprises a shell, a lock nose, a first lock tongue, a second lock tongue, a first lock rope, a safety mechanism, a winding mechanism and a driving mechanism. The shell is fixedly arranged, the lock nose is slidably arranged in the shell along a first direction and can be separated from the shell, the first lock tongue and the second lock tongue are slidably arranged in the shell along a second direction, a first spring is arranged between the first lock tongue and the second lock tongue, the two ends of the first spring are respectively fixedly connected with the first lock tongue and the second lock tongue, the first lock tongue, the first spring and the second lock tongue are arranged in sequence along the second direction, the second direction is perpendicular to the first direction, and the second lock tongue can be clamped with the lock nose; one end of the first lock rope is connected to the lock nose, the safety mechanism comprises a connecting column and a limit The assembly comprises a connecting column and an end of the first lock rope that is away from the lock nose, the connecting column can pass through the shell and be slidably connected to the shell; the limiting assembly is used to limit the connecting column to be inside the shell when the second lock tongue is in a normal state, and to allow the connecting column to extend out of the shell when the first spring is stretched when the second lock tongue fails; the winding mechanism comprises a rotating drum, a second lock rope and a password module, the rotating drum is rotatably arranged in the shell, one end of the second lock rope is fixedly mounted on the rotating drum, and the other end of the second lock rope is connected to the connecting column, both the first lock rope and the second lock rope can be wound around the rotating drum, and the password module is used to control the rotation of the rotating drum; the driving mechanism is used to drive the first lock tongue to slide along the second direction.

[0007] Preferably, the limit assembly includes a slider, a limit plate and a second spring, the slider is slidably arranged in the shell along the second direction, the first lock tongue is slidably arranged on the slider along the second direction, and the driving mechanism can drive the slider to slide along the second direction; there are two limit plates, the two limit plates are slidably arranged on the slider along a third direction, the third direction is perpendicular to the second direction, the two limit plates are located on both sides of the first lock tongue in the first direction, and each limit plate is slidably connected to the first lock tongue, the two surfaces of the first lock tongue and the two limit plates slidably connected are inclined surfaces, and the two inclined surfaces on the first lock tongue are away from each other from a side close to the first spring to a side away from the first spring; the second spring is located between the two limit plates, and the two ends of the second spring are fixedly connected to the two limit plates respectively; a through hole that penetrates the shell along the first direction is provided on the shell, the connecting column is slidably connected to the through hole and can enter and exit the shell through the through hole, and the two limit plates are located on both sides of the through hole in the second direction and can abut against the connecting column.

[0008] Preferably, a fixed plate is fixedly installed on one end of the first locking rope connected to the connecting column, a stud is rotatably provided on a side of the fixed plate away from the first locking rope, a threaded groove is provided on the end surface of the connecting column away from the second locking rope, and the stud is threadedly connected to the connecting column through the threaded groove.

[0009] Preferably, the safety mechanism also includes a push column and a positioning block, a vertical groove and a longitudinal groove are provided in the connecting column, the vertical groove extends along the axial direction of the connecting column and is connected with the threaded groove, the longitudinal groove penetrates the circumferential surface of the connecting column along the radial direction of the connecting column, and the push column is slidably arranged in the vertical groove along the axial direction of the connecting column; there are two positioning blocks, the two positioning blocks are slidably arranged in the longitudinal groove along the radial direction of the connecting column, a third spring is provided between the two positioning blocks, the two ends of the third spring are respectively connected to the two positioning blocks, and the third spring is extended and retracted along the radial direction of the connecting column; the stud can abut against the push column, a tapered hole is provided at one end of the push column away from the stud, the two positioning blocks are located at one end of the push column away from the fixed plate, and a protrusion is provided on one surface of the two positioning blocks close to the push column, and the two protrusions are respectively slidably connected to the tapered holes.

[0010] Preferably, the driving mechanism includes a motor, a rotating ring and a baffle, the motor is fixedly installed inside the shell, the rotating ring is fixedly installed on the output shaft of the motor, and the rotating ring is coaxial with the output shaft of the motor, a disk is provided on the rotating ring, an axis extension direction of the disk is consistent with an axis extension direction of the rotating ring, and a spacing is provided between the axis of the disk and the axis of the rotating ring; two baffles are provided, the two baffles are fixedly arranged on the slider, and the two baffles are located on both sides of the disk in the second direction, and the two baffles are respectively slidably connected to the disk.

[0011] Preferably, the electronic smart padlock also includes a smart module, a charging port, a battery and a control board, the smart module is used to read unlocking information, the charging port is arranged on the shell, the battery and the control board are both arranged inside the shell, and the smart module, the charging port and the battery are all electrically connected to the control board.

[0012] Preferably, the winding mechanism also includes a fixed shaft and a coil spring, the fixed shaft is fixedly installed in the shell, and the fixed shaft is coaxial with the rotating drum, the rotating drum is sleeved on the fixed shaft, and the rotating drum is rotatably connected to the fixed shaft, the coil spring is sleeved on the fixed shaft, and one end of the coil spring is connected to the fixed shaft, and the other end of the coil spring is connected to the rotating drum.

[0013] Preferably, the password module includes a password part, a button, a positioning ring, a fourth spring and a ratchet part, the password part is used to input a password, the button can be slidably arranged on the shell along a third direction after the password part inputs the correct password, one end of the button passes through the shell and extends out of the shell, the positioning ring is sleeved on the fixed shaft, and the positioning ring is slidably connected to the fixed shaft, the button and the rotating drum are located on the same side of the positioning ring, the positioning ring can abut against the button, and the positioning ring can abut against the rotating drum, the fourth spring is sleeved on the fixed shaft, and the fourth spring is located on the side of the positioning ring away from the rotating drum, and the two ends of the fourth spring are respectively connected to the shell and the positioning ring; the ratchet part is arranged between the positioning ring and the rotating drum, and is used to prevent the rotating drum from releasing the second lock rope when the positioning ring abuts against the rotating drum.

[0014] Preferably, a magnet is provided on the housing.

[0015] Preferably, the outside of the shell is covered with a rubber soft sleeve.

[0016] The beneficial effects of the present invention are as follows: through the coordinated arrangement of the first lock rope and the shell, both ends of the first lock rope can be opened, which increases the diversity of unlocking methods; a first lock tongue and a second lock tongue are arranged, and when the second lock tongue cannot be separated from the lock nose, the first lock tongue can move alone, thereby preventing the driving mechanism from being damaged due to large resistance; a connecting column and a limiting assembly are arranged, and after the second lock tongue fails, the first lock rope can pull the connecting column to slide out of the shell, and then separate from the connecting column by rotation, thereby completing the unlocking.

[0017] The first lock rope and the second lock rope are wound around the drum, and the length of the first lock rope outside the shell can be adjusted. A password module is provided to control the rotation of the drum, which prevents the connecting column from detaching from the shell and can increase the length of the first lock rope outside the shell, so that the electronic smart padlock can open the door to different sizes as needed, thereby increasing the scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of an electronic smart padlock provided by an embodiment of the present invention;

[0019] Figure 2 A top view of an electronic smart padlock provided by an embodiment of the present invention;

[0020] Figure 3 for Figure 2 Sectional view along AA direction;

[0021] Figure 4 for Figure 3 The enlarged view of point B in the middle;

[0022] Figure 5 for Figure 3 Enlarged view of point C in the middle;

[0023] Figure 6 A rear view of an electronic smart padlock provided by an embodiment of the present invention;

[0024] Figure 7 for Figure 6 Cross-sectional view along the DD direction;

[0025] Figure 8 for Figure 7 The enlarged view of the H in the middle;

[0026] Fig. 9 for Figure 6 Sectional view along EE direction;

[0027] Fig.10 for Figure 6 Cross-sectional view along the FF axis.

[0028] in:

[0029] 100, housing; 101, lock nose; 102, first lock tongue; 103, second lock tongue; 104, first lock rope; 105, first spring; 110, connecting column; 111, slider; 112, limit plate; 113, second spring; 114, groove; 115, through hole; 116, fixed plate; 117, stud; 118, push column; 119, positioning block; 120, third spring; 121, tapered hole; 131, motor; 132, rotating ring; 133, baffle; 134, disc; 141, rotating drum; 142, second lock rope; 143, fixed shaft; 144, coil spring; 145, press column; 146, positioning ring; 147, fourth spring; 148, rotating ring; 150, charging port; 151, battery; 152, smart module; 153, magnet; 154, rubber soft cover. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0031] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0032] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] like Figures 1 to 10As shown, it is a structural schematic diagram of an electronic smart padlock provided by an embodiment of the present invention, including a shell 100, a lock nose 101, a first lock tongue 102, a second lock tongue 103, a first lock rope 104, a safety mechanism, a winding mechanism and a driving mechanism. The shell 100 is fixedly arranged, the lock nose 101 is slidably arranged in the shell 100 along a first direction and can be separated from the shell 100, the shell 100 is provided with a slot, the lock nose 101 is slidably arranged in the slot, the first lock tongue 102 and the second lock tongue 103 are slidably arranged in the shell 100 along a second direction, a first spring 105 is arranged between the first lock tongue 102 and the second lock tongue 103, and the two ends of the first spring 105 are fixedly connected to the first lock tongue 102 and the second lock tongue 103 respectively, the first lock tongue 102, the first spring 105 and the second lock tongue 103 are arranged in sequence along the second direction, the second direction is perpendicular to the first direction, the first lock tongue 102 can extend into the slot and the second lock tongue 103 can be clamped with the lock nose 101; the first lock rope 1 04 is connected to the lock nose 101; the safety mechanism includes a connecting column 110 and a limiting assembly, the connecting column 110 is threadedly connected to the end of the first lock rope 104 away from the lock nose 101, the connecting column 110 can pass through the shell 100 and is slidably connected to the shell 100; the limiting assembly is used to limit the connecting column 110 to be inside the shell 100 when the second lock tongue 103 is in a normal state, and allow the connecting column 110 to extend out of the shell 100 when the first spring 105 is stretched when the second lock tongue 103 fails; the winding mechanism includes a drum 141, a second lock rope 142 and a password module, the drum 141 is rotatably arranged in the shell 100, one end of the second lock rope 142 is fixedly mounted on the drum 141, and the other end of the second lock rope 142 is connected to the connecting column 110, the first lock rope 104 and the second lock rope 142 can both be wound around the drum 141, and the password module is used to control the rotation of the drum 141; the driving mechanism is used to drive the first lock tongue 102 to slide along the second direction.

[0034] Through the coordinated arrangement of the first lock rope 104 and the housing 100, both ends of the first lock rope 104 can be opened, which increases the diversity of unlocking methods. The first lock tongue 102 and the second lock tongue 103 are provided. When the second lock tongue 103 cannot be separated from the lock nose 101, the first lock tongue 102 can move alone to prevent the driving mechanism from being damaged by greater resistance; a connecting column 110 and a limiting assembly are provided. After the second lock tongue 103 fails, the first lock rope 104 can pull the connecting column 110 to slide out from the inside of the housing 100, and then separate from the connecting column 110 by rotation, thereby completing the unlocking; the first lock rope 104 and the second lock rope 142 are wound around the drum 141, and the length of the first lock rope 104 outside the housing 100 can be adjusted. A password module is provided to control the rotation of the drum 141, which prevents the connecting column 110 from being separated from the housing 100 and can increase the length of the first lock rope 104 outside the housing 100, so that the electronic smart padlock can open different sizes of the door to be installed as needed, thereby increasing the scope of application.

[0035] In this embodiment, the limiting assembly includes a slider 111, a limiting plate 112 and a second spring 113. The slider 111 is slidably arranged in the housing 100 along the second direction. The first locking tongue 102 is slidably arranged on the slider 111 along the second direction. The driving mechanism can drive the slider 111 to slide along the second direction. There are two limiting plates 112. The two limiting plates 112 are slidably arranged on the slider 111 along a third direction. The third direction is perpendicular to the second direction. The two limiting plates 112 are located at two ends of the first locking tongue 102 in the first direction. The first locking tongue 102 is provided with a groove 114 on the two inclined surfaces, and the bottom surface of the groove 114 is parallel to the corresponding inclined surface on the first locking tongue 102. Each limiting plate 112 is an L-shaped plate composed of a long plate and a short plate. The two inclined surfaces on the first locking tongue 102 are separated from each other from the side close to the first spring 105 to the side away from the first spring 105. The limiting plates 112 are connected to the first locking tongue 102 by sliding. The two surfaces of the first locking tongue 102 are inclined. The end of the second spring 113 is also provided with an inclined surface, and the inclined surface on the short plate is parallel to the corresponding inclined surface on the first locking tongue 102, and the short plate is slidably arranged in the groove 114. When the first locking tongue 102 slides on the slider 111, the limiting plate 112 can be driven to move in the second direction through the groove 114; the second spring 113 is located between the two limiting plates 112, and the two ends of the second spring 113 are respectively fixedly connected to the two limiting plates 112. In the normal state of the second spring 113, the short plate is located in the groove 114 close to the first spring The shell 100 is provided with a through hole 115 which penetrates the shell 100 along a first direction. The connecting column 110 is slidably connected with the through hole 115 and can enter and exit the shell 100 through the through hole 115. The two limiting plates 112 are located on both sides of the through hole 115 in the second direction and can abut against the connecting column 110. When the second spring 113 is not stretched, the distance between the two long plates is smaller than the diameter of the connecting column 110, which can limit the connecting column 110 from going out of the shell 100 through the through hole 115.

[0036] In this embodiment, a fixed plate 116 is fixedly installed at one end of the first locking rope 104 connected to the connecting column 110, and a stud 117 is rotatably provided on a side of the fixed plate 116 away from the first locking rope 104, and the rotation axis of the stud 117 extends along the length direction of the first locking rope 104. A threaded groove is provided on the end surface of the connecting column 110 away from the second locking rope 142, and the stud 117 is threadedly connected to the connecting column 110 through the threaded groove. The first locking rope 104 and the second locking rope 142 are located at both ends of the connecting column 110. When the connecting column 110 is located inside the shell 100, rotating the first locking rope 104 cannot drive the stud 117 to rotate, thereby increasing the safety of the electronic smart padlock.

[0037] In this embodiment, the safety mechanism also includes a push column 118 and a positioning block 119. A vertical groove and a longitudinal groove are provided in the connecting column 110. The vertical groove extends along the axial direction of the connecting column 110 and is connected to the threaded groove. The longitudinal groove penetrates the circumference of the connecting column 110 along the radial direction of the connecting column 110. The push column 118 is slidably arranged in the vertical groove along the axial direction of the connecting column 110; there are two positioning blocks 119, and the two positioning blocks 119 are slidably arranged in the longitudinal groove along the radial direction of the connecting column 110. A third spring 120 is provided between the two positioning blocks 119, and the two ends of the third spring 120 are respectively connected to the two positioning blocks 119, and the third spring 120 is retracted in the radial direction of the connecting column 110. The spring 120 makes the ends of the two positioning blocks 119 away from each other extend out of the longitudinal groove respectively, and the distance between the ends of the two positioning blocks 119 away from each other is greater than the diameter of the through hole 115; the stud 117 can abut against the push post 118, and the end of the push post 118 away from the stud 117 is provided with a tapered hole 121. The two positioning blocks 119 are located at the end of the push post 118 away from the fixed plate 116. The two positioning blocks 119 are provided with protrusions on the side close to the push post 118, and the two protrusions are respectively slidably connected with the tapered holes 121. When the push post 118 approaches the two positioning blocks 119, the two positioning blocks 119 will approach each other and completely retract into the longitudinal groove under the cooperation of their respective protrusions and tapered holes 121.

[0038] In this embodiment, the driving mechanism includes a motor 131, a rotating ring 132 and a baffle 133. The motor 131 is fixedly installed inside the housing 100. The rotating ring 132 is fixedly installed on the output shaft of the motor 131, and the rotating ring 132 is coaxial with the output shaft of the motor 131. A disk 134 is provided on the rotating ring 132. The axis of the disk 134 extends in the same direction as the axis of the rotating ring 132, and a distance is provided between the axis of the disk 134 and the axis of the rotating ring 132. The baffle 133 There are two baffles 133 fixedly arranged on the slider 111, and the two baffles 133 are located on both sides of the disc 134 in the second direction. The two baffles 133 are slidably connected with the disc 134 respectively. When the motor 131 rotates, the disc 134 rotates around the output shaft of the motor 131. At this time, the position of the disc 134 in the second direction will change. The disc 134 will drive the slider 111 to move along the second direction through cooperation with the two baffles 133, and then drive the first locking tongue 102 to move.

[0039] In this embodiment, the electronic smart padlock also includes a smart module 152, a charging port 150, a battery 151 and a control board. The smart module 152 is used to read unlocking information. The smart module 152 can select a fingerprint recognition module or a reading module in the prior art, which can recognize fingerprints or read card information. The charging port 150 is arranged on the shell 100, and the battery 151 and the control board are all arranged inside the shell 100. The smart module 152, the charging port 150, the motor 131 and the battery 151 are all electrically connected to the control board. The smart module 152 transmits the collected correct information to the control board, and then the control board controls the motor 131 to start and unlock.

[0040] In this embodiment, the winding mechanism also includes a fixed shaft 143 and a coil spring 144. The fixed shaft 143 is fixedly installed in the shell 100, and the fixed shaft 143 is coaxial with the rotating drum 141. The rotating drum 141 is sleeved on the fixed shaft 143, and the rotating drum 141 is rotatably connected to the fixed shaft 143. The coil spring 144 is sleeved on the fixed shaft 143, and one end of the coil spring 144 is connected to the fixed shaft 143, and the other end of the coil spring 144 is connected to the rotating drum 141. When the coil spring 144 is in normal state, the first lock rope 104 and the second lock rope 142 are wound around the rotating drum 141, and a small amount of the first lock rope 104 is left outside the shell 100 to ensure the normal use of the electronic smart padlock.

[0041] In this embodiment, the password module includes a password part, a push column 145, a positioning ring 146, a fourth spring 147 and a ratchet part. The password part is used to input a password. The push column 145 can be slidably arranged on the housing 100 along the third direction after the password is input into the password part. One end of the push column 145 penetrates the housing 100 and extends out of the housing 100. A plurality of protrusions are arranged on the circumferential surface of the push column 145. The plurality of protrusions are arranged along the axial direction of the push column 145. The password part includes a rotating ring 148 having the same number as the protrusions. The plurality of rotating rings 148 are sleeved on the push column 145 and extend along the axial direction of the push column 145. The plurality of rotating rings 148 are rotatably connected to the push column 145. Each rotating ring 14 8 corresponds to a protrusion, each rotating ring 148 is provided with a through groove, the through groove runs through the center of the rotating ring 148, each protrusion can be slidably connected with the corresponding through groove, the positioning ring 146 is sleeved on the fixed shaft 143, and the positioning ring 146 is slidably connected with the fixed shaft 143, the pressing column 145 and the rotating cylinder 141 are located on the same side of the positioning ring 146, the positioning ring 146 can abut against the pressing column 145, and the positioning ring 146 can abut against the rotating cylinder 141, the fourth spring 147 is sleeved on the fixed shaft 143, and the fourth spring 147 is located on the side of the positioning ring 146 away from the rotating cylinder 141, and the two ends of the fourth spring 147 are respectively connected to the shell 100 and the positioning ring 146.

[0042] The ratchet portion is arranged between the positioning ring 146 and the rotating drum 141, and is used to prevent the rotating drum 141 from releasing the second locking rope 142 when the positioning ring 146 abuts against the rotating drum 141; the ratchet portion includes a plurality of blocks and a plurality of slots, and the plurality of blocks are evenly arranged around the fixed axis 143 on the side where the positioning ring 146 and the rotating drum 141 are in contact, and the side of each block close to the rotating drum 141 is an inclined surface, and assuming that the rotation direction of the rotating drum 141 to release the second locking rope 142 is forward, the inclined surface of each block gradually approaches the rotating drum 141 from its rear side to the front side; the plurality of slots are evenly arranged around the fixed axis 143 on the side where the rotating drum 141 and the positioning ring 146 are in contact, and the blocks can be inserted into the slots. When the blocks are located in the slots, the front side of the blocks abuts against the side of the slots, and the rotating drum 141 cannot release the second locking rope 142.

[0043] In this embodiment, a magnet 153 is provided on the shell 100. When the electronic smart padlock is used in a shaking scene, the electronic smart padlock can be adsorbed on the locked object through the magnet 153, thereby reducing the collision between the electronic smart padlock and the locked object and improving its service life.

[0044] In this embodiment, the outside of the shell 100 is covered with a rubber soft cover 154 , which can be used to improve the buffering performance of the electronic smart padlock and protect the electronic components inside the shell 100 .

[0045] The working principle of an electronic smart padlock provided in the above embodiment is:

[0046] First, the second lock rope 142 and part of the first lock rope 104 are wound around the rotating drum 141. The coil spring 144 does not store force at this time, and a normal amount of the first lock rope 104 is left outside the shell 100. Then the lock nose 101 is inserted into the slot. At this time, the motor 131 can be started through the intelligent module 152. The forward rotation of the motor 131 drives the rotating ring 132 to rotate, and the rotating ring 132 drives the disk 134 to rotate. The rotation of the disk 134 drives the slider 111 to move along the second direction toward the lock nose 101 through the baffle 133. The slider 111 drives the first lock tongue 102 to push the second lock tongue 103 toward the lock nose 101 through the first spring 105. Finally, the second lock tongue 103 is engaged with the lock nose 101.

[0047] If it is necessary to extend the length of the first locking rope 104 outside the shell 100, the multiple rotating rings 148 are rotated at this time so that the through groove on each rotating ring 148 rotates to the position of the corresponding protrusion on the pressing column 145, and the pressing column 145 is pressed. After the pressing column 145 abuts against the positioning ring 146, it pushes the positioning ring 146 away from the rotating drum 141. At this time, the fourth spring 147 is compressed, the block is separated from the slot, and then the first locking rope 104 outside the shell is pulled. The first locking rope 104 is pulled out of the shell 100 and can drive the rotating drum 141 to rotate. The rotation of the rotating drum 141 causes the coil spring 144 to accumulate force. When the connecting column 110 abuts against the limiting plate 112, the first locking rope 104 will not be pulled out again.

[0048] When unlocking, the motor 131 rotates in the opposite direction and drives the slider 111 to move away from the lock nose 101. The slider 111 drives the first lock tongue 102 to move, and the first spring 105 is stretched. After the first lock tongue 102 is subjected to the tension, it slides relative to the slider 111. At the same time, the slider 111 drives the limiting plate 112 to move synchronously. The limiting plate 112 slides in the groove 114, and the two limiting plates 112 move away from each other under the guidance of the inclined surface of the first lock tongue 102. The second spring 113 is stretched, and finally the distance between the two limiting plates 112 is greater than the diameter of the through hole 115; then the unlocking button 145 can be used to allow the rotating drum 141 to release the second lock rope 142, and then the first lock rope 104 is pulled to pull the connecting column 110 out of the housing 100, and the stud 117 is rotated to separate the stud 117 from the connecting column 110, and the lock can be unlocked at this time.

[0049] After the stud 117 is separated from the connecting column 110, the push column 118 moves away from the positioning block 119 under the action of the third spring 120. At the same time, the two positioning blocks 119 move away from each other and extend out of the connecting column 110 under the action of the third spring 120. The two positioning blocks 119 can be engaged with the shell 100 to prevent the connecting column 110 from being retracted into the inside of the shell 100 under the action of the coil spring 144.

[0050] The technical features of the above embodiments may be arbitrarily combined. 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.

[0051] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. An electronic smart padlock, characterized in that: include: A shell, a lock nose, a first lock tongue, a second lock tongue, a first lock rope, a safety mechanism, a winding mechanism and a driving mechanism. The shell is fixedly arranged, the lock nose is slidably arranged in the shell along a first direction and can be separated from the shell, the first lock tongue and the second lock tongue are slidably arranged in the shell along a second direction, a first spring is arranged between the first lock tongue and the second lock tongue, the two ends of the first spring are respectively fixedly connected to the first lock tongue and the second lock tongue, the first lock tongue, the first spring and the second lock tongue are arranged in sequence along the second direction, the second direction is perpendicular to the first direction, and the second lock tongue can be clamped with the lock nose; one end of the first lock rope is connected to the lock nose, the safety mechanism includes a connecting column and a limiting assembly, the connecting column The connecting column is threadedly connected to the end of the first lock rope away from the lock nose, and the connecting column can pass through the shell and be slidably connected to the shell; the limit assembly is used to limit the connecting column to be inside the shell when the second lock tongue is in a normal state, and allow the connecting column to extend out of the shell when the first spring is stretched when the second lock tongue fails; the winding mechanism includes a rotating drum, a second lock rope and a password module, the rotating drum is rotatably arranged in the shell, one end of the second lock rope is fixedly mounted on the rotating drum, and the other end of the second lock rope is connected to the connecting column, both the first lock rope and the second lock rope can be wound around the rotating drum, and the password module is used to control the rotation of the rotating drum; the driving mechanism is used to drive the first lock tongue to slide in the second direction.

2. An electronic smart padlock according to claim 1, characterized in that: The limiting assembly includes a slider, a limiting plate and a second spring, the slider is slidably arranged in the shell along the second direction, the first lock tongue is slidably arranged on the slider along the second direction, and the driving mechanism can drive the slider to slide along the second direction; there are two limiting plates, the two limiting plates are slidably arranged on the slider along a third direction, the third direction is perpendicular to the second direction, the two limiting plates are located on both sides of the first lock tongue in the first direction, and each limiting plate is slidably connected to the first lock tongue, the two surfaces of the first lock tongue and the two limiting plates being slidably connected are inclined surfaces, and the two inclined surfaces on the first lock tongue are away from each other from a side close to the first spring to a side away from the first spring; the second spring is located between the two limiting plates, and the two ends of the second spring are fixedly connected to the two limiting plates respectively; a through hole that penetrates the shell along the first direction is provided on the shell, the connecting column is slidably connected to the through hole and can enter and exit the shell through the through hole, and the two limiting plates are located on both sides of the through hole in the second direction and can abut against the connecting column.

3. An electronic smart padlock according to claim 2, characterized in that: A fixed plate is fixedly installed on one end of the first locking rope connected to the connecting column, a stud is rotatably provided on a side of the fixed plate away from the first locking rope, a threaded groove is provided on the end surface of the connecting column away from the second locking rope, and the stud is threadedly connected to the connecting column through the threaded groove.

4. An electronic smart padlock according to claim 3, characterized in that: The safety mechanism also includes a push column and a positioning block. A vertical groove and a longitudinal groove are provided in the connecting column. The vertical groove extends along the axial direction of the connecting column and is connected to the threaded groove. The longitudinal groove penetrates the circumferential surface of the connecting column along the radial direction of the connecting column. The push column is slidably arranged in the vertical groove along the axial direction of the connecting column; two positioning blocks are provided, and the two positioning blocks are slidably arranged in the longitudinal groove along the radial direction of the connecting column. A third spring is provided between the two positioning blocks, and the two ends of the third spring are respectively connected to the two positioning blocks, and the third spring is retracted and extended along the radial direction of the connecting column; the stud can abut against the push column, and a tapered hole is provided at one end of the push column away from the stud. The two positioning blocks are located at one end of the push column away from the fixed plate. A protrusion is provided on one surface of the two positioning blocks close to the push column, and the two protrusions are respectively slidably connected to the tapered holes.

5. An electronic smart padlock according to claim 2, characterized in that: The driving mechanism includes a motor, a rotating ring and a baffle. The motor is fixedly installed inside the shell, the rotating ring is fixedly installed on the output shaft of the motor, and the rotating ring is coaxial with the output shaft of the motor. A disk is provided on the rotating ring, and the extension direction of the axis of the disk is consistent with the extension direction of the axis of the rotating ring, and a distance is provided between the axis of the disk and the axis of the rotating ring; two baffles are provided, the two baffles are fixedly arranged on the slider, and the two baffles are located on both sides of the disk in the second direction, and the two baffles are respectively slidably connected to the disk.

6. An electronic smart padlock according to claim 1, characterized in that: It also includes an intelligent module, a charging port, a battery and a control board. The intelligent module is used to read unlocking information. The charging port is arranged on the shell. The battery and the control board are both arranged inside the shell. The intelligent module, the charging port and the battery are all electrically connected to the control board.

7. An electronic smart padlock according to claim 2, characterized in that: The winding mechanism also includes a fixed shaft and a coil spring. The fixed shaft is fixedly installed in the shell, and the fixed shaft is coaxial with the rotating drum. The rotating drum is sleeved on the fixed shaft, and the rotating drum is rotatably connected to the fixed shaft. The coil spring is sleeved on the fixed shaft, and one end of the coil spring is connected to the fixed shaft, and the other end of the coil spring is connected to the rotating drum.

8. An electronic smart padlock according to claim 7, characterized in that: The password module includes a password part, a push column, a positioning ring, a fourth spring and a ratchet part. The password part is used to input a password. The push column can be slidably arranged on the shell along a third direction after the password part inputs the correct password. One end of the push column passes through the shell and extends out of the shell. The positioning ring is sleeved on the fixed shaft, and the positioning ring is slidably connected to the fixed shaft. The push column and the rotating cylinder are located on the same side of the positioning ring. The positioning ring can abut against the push column, and the positioning ring can abut against the rotating cylinder. The fourth spring is sleeved on the fixed shaft, and the fourth spring is located on the side of the positioning ring away from the rotating cylinder. The two ends of the fourth spring are respectively connected to the shell and the positioning ring; the ratchet part is arranged between the positioning ring and the rotating cylinder, and is used to prevent the rotating cylinder from releasing the second lock rope when the positioning ring abuts against the rotating cylinder.

9. The electronic smart padlock according to claim 1, characterized in that: A magnet is arranged on the shell.

10. The electronic smart padlock according to claim 1, characterized in that: The outside of the shell is covered with a rubber soft sleeve.

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