Padlock with fingerprint identification function

By introducing a fingerprint reader and a PLC controller into the padlock, the limit mechanism is automatically controlled, solving the problem of time-consuming and labor-intensive manual operation required by existing padlocks and improving anti-theft performance.

CN223469140UActive Publication Date: 2025-10-24WENZHOU SHENGJIAFU LOCK IND CO LTD
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Patent Information

Application Number
CN202422273659.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-18
Publication Date
2025-10-24
Estimated Expiration
2034-09-18

AI Technical Summary

Technical Problem

Existing padlocks lack fingerprint recognition functionality, requiring manual operation of multiple limit rings to unlock, which is time-consuming, labor-intensive, and has poor anti-theft performance.

Method used

Design a padlock with fingerprint recognition function. The motor is controlled by a fingerprint reader and a PLC controller to achieve automatic unlocking. Combined with a limit mechanism and power supply system, it simplifies operation and improves anti-theft performance.

Benefits of technology

It realizes automatic unlocking without manual operation, saving time and effort, and at the same time improves the anti-theft performance of the padlock.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of padlocks, in particular to a padlock with a fingerprint recognition function, which comprises a lock body, a rotating drum rotatably connected with the lock body is arranged on the top surface of the lock body close to the left end, a rotating column slidably connected with the inner wall of the rotating drum is arranged in the rotating drum, and an insertion hole communicated with an inner cavity of the lock body is arranged on the top surface of the lock body close to the right end. The right side of the rotating cylinder is provided with an inserting rod slidably inserted into an inserting hole in the top face of the lock body. According to the novel padlock, fingerprints of a user can be recognized by arranging the fingerprint recognizer, the whole padlock has a locking function by arranging the lock body, the rotating cylinder, the rotating column, the arc-shaped rod, the inserting rod and the limiting mechanism, and fingerprint signals can be recognized and starting and stopping of the motor can be controlled by arranging the fingerprint recognizer and the PLC; the limiting rod can be conveniently moved, so that the whole device has a fingerprint recognition function, manual unlocking operation is not needed, time and labor are saved, and meanwhile, the anti-theft performance of the whole padlock is better.
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Description

TECHNICAL FIELD

[0001] The utility model relates to padlock technical field, concretely is a padlock with fingerprint identification function. BACKGROUND

[0002] Lockset refers to the appliance that plays a closing role, it includes lock, key and its annex, generally explains as must use key can open the seal ware, now lockset can open in addition to using key, still can use light, electricity, magnetism, sound and fingerprint etc.

[0003] The patent with the publication number CN220955120U discloses a padlock: including the shell, the shell is equipped with the coded lock core, the coded lock core includes the limiting rod and the limiting rod is fixedly connected with a plurality of clamping blocks on the outer circumferential wall, a plurality of limiting rings that can form clamping with the clamping blocks are rotatably connected on the limiting rod, a plurality of grooves are formed on the inner circumferential wall of the limiting ring, the lock beam is slidably arranged on the shell, and the limiting member for limiting the sliding of the lock beam is arranged in the shell, and the extending end of the lock beam is provided with a reset member.

[0004] Although the device can automatically pop out the lock beam and improve the practicability when the clamping blocks and the limiting ring are disengaged, the device does not set the fingerprint identification structure, and the opening and closing operation of the entire padlock cannot be performed through the fingerprint identification structure, so manual operation of multiple limiting rings is required to achieve the purpose of unlocking, which is time-consuming and laborious, and the anti-theft performance of the coded lock is poor and the code is easy to be cracked by criminals. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a padlock with fingerprint identification function to solve the problems that the device does not set the fingerprint identification structure, the opening and closing operation of the entire padlock cannot be performed through the fingerprint identification structure, manual operation of multiple limiting rings is required to achieve the purpose of unlocking, which is time-consuming and laborious, and the anti-theft performance of the coded lock is poor and the code is easy to be cracked by criminals.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] The utility model provides a padlock with fingerprint identification function, including the lock body, the top surface of lock body is equipped with the rotary joint with the rotary drum near left end, the inside of rotary drum is equipped with the sliding joint with the rotary column of inner wall, the top surface of lock body is equipped with the jack hole with the inner chamber of lock body near right end, the right side of rotary drum is equipped with the plug rod of sliding insertion with the top surface jack hole of lock body, the top surface of plug rod is fixed with the arc rod above the lock body with the top surface of rotary column, the plug rod inserts the top surface jack hole of lock body and extends to the inside of lock body near the top, the front side surface of lock body is equipped with the through slot, the inside of through slot is equipped with the fingerprint identification ware of front side surface through slot, and the inside bottom surface of lock body is equipped with the PLC controller, still includes:

[0008] Limiting mechanism, set up on the inside top surface of lock body for the plug rod is positioned, the limiting mechanism includes two fixed plates fixed on the inside top surface of lock body, two rotating rollers are rotatably connected with the same side fixed plate, a screw is coaxially fixed between the two rotating rollers, a rotating rod is coaxially fixed on the side surface of one of the rotating rollers away from the screw, two gears are located inside the lock body and used to drive the rotating rod to rotate, a moving rod is threadedly connected with the screw and slidably connected to the inside top surface of the lock body, a connecting rod is fixed to the front side surface of the moving rod, a limiting rod is fixed to the right side surface of the connecting rod and slidably connected with the plug rod, the two gears are meshed with each other, and the limiting mechanism further comprises a motor installed on the side surface of one of the fixed plates away from the screw and used to drive the two gears to rotate.

[0009] As a preferred embodiment, the inner wall of the rotary drum is provided with two sliding grooves, and the circumferential outer wall of the rotary column is fixed with two sliding blocks slidably connected with the same side sliding grooves on the inner wall of the rotary drum.

[0010] As a preferred embodiment, the front side surface of the lock body is provided with a mounting groove in communication with the inner chamber thereof, the inside of the mounting groove of the front side surface of the lock body is mounted with a charging interface, and the inside bottom surface of the lock body is mounted with a storage battery.

[0011] As a preferred embodiment, the circumferential outer wall of the plug rod is provided with a limiting hole located inside the lock body, and the limiting rod is slidably inserted into the limiting hole on the outer wall of the plug rod.

[0012] As a preferred embodiment, the inside top surface of the lock body is provided with a guide groove, and the top surface of the moving rod is fixed with a guide block slidably connected with the guide groove on the inside top surface of the lock body.

[0013] As a preferred embodiment, the limiting mechanism further comprises a rotating shaft coaxially connected with the output shaft of the motor, and the two gears are coaxially fixed on the circumferential outer wall of the rotating shaft and the rotating rod, respectively.

[0014] As a preferred implementation, the limiting mechanism further comprises a protective box fixed to the surface of one of the fixing plates away from the screw rod, the motor is located inside the protective box, the rotating shaft penetrates through the outer wall of the motor away from the screw rod, the front surface of the lock body is provided with a protective plate fixed thereto by a plurality of screws, and the protective plate corresponds to the position of the mounting groove on the front surface of the lock body and is adapted in size.

[0015] As a preferred implementation, the longitudinal section shape of the guide groove on the top surface of the lock body is in the shape of a Chinese character "N", and the shape of the guide block is in the shape of a Chinese character "N" adapted to the shape of the guide groove on the top surface of the lock body.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] 1、The utility model discloses a fingerprint recognizer can be set up to the user's fingerprint is identified, through setting up lock body, rotary drum, rotating column, arc rod, plug rod and limiting mechanism to make the whole padlock have locking function, through the setting of fingerprint recognizer and PLC controller can the fingerprint signal is identified and control motor's opening and closing, and then be convenient for the movement of the limiting rod, make the whole device have fingerprint identification function, need not through manual operation, save time and labour, also make the whole padlock's anti -theft performance is better.

[0018] 2、The utility model discloses the front surface of lock body is equipped with the mounting groove that with its inner chamber is linked together, and the charging interface is installed in the lock body front surface mounting groove, and the inner bottom surface of lock body is installed with the battery, and then can the power supply of fingerprint recognizer, motor and PLC controller. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the whole structure schematic diagram of the utility model;

[0020] Figure 2 It is the internal structure schematic diagram of lock body in the utility model;

[0021] Figure 3 It is the internal structure schematic diagram of lock body in the utility model;

[0022] Figure 4 It is one of local explosion drawing in the utility model;

[0023] Figure 5 It is the local sectional view in the utility model;

[0024] Figure 6 It is the second local explosion drawing in the utility model;

[0025] Figure 7 It is the third local explosion drawing in the utility model;

[0026] Figure 8 For the fourth partial explosion drawing in the utility model;

[0027] Figure 9 For the overall structure schematic view of the limiting mechanism in the utility model;

[0028] Figure 10 For the first partial explosion drawing of the limiting mechanism in the utility model;

[0029] Figure 11 For the second partial explosion drawing of the limiting mechanism in the utility model;

[0030] The meanings of various reference numerals in the drawing are as follows:

[0031] 1, lock body; 2, rotating drum; 3, rotating column; 4, arc-shaped rod; 5, insertion rod; 6, fingerprint recognizer; 7, limiting mechanism; 71, fixed plate; 72, rotating roller; 73, screw rod; 74, moving rod; 75, connecting rod; 76, limiting rod; 77, guide block; 78, rotating rod; 79, gear; 710, motor; 711, rotating shaft; 712, protection box; 8, PLC controller; 9, battery; 10, sliding block; 11, protection plate; 12, charging interface. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0033] Please refer to Figures 1-11 The utility model provides a kind of technical scheme: a padlock with fingerprint identification function, including lock body 1, the top surface of lock body 1 is close to left end and is equipped with the rotating connection with it rotating drum 2, rotating drum 2 inside is equipped with the sliding connection with its inner wall rotating column 3, the top surface of lock body 1 is close to right end and is equipped with the insertion hole being connected with its inner cavity, rotating drum 2 right side is equipped with the insertion rod 5 being slidably inserted with the insertion hole of the top surface of lock body 1, arc-shaped rod 4 is fixed between the top surface of insertion rod 5 and the top surface of rotating column 3 and is located above lock body 1, insertion rod 5 is inserted into the top surface insertion hole of lock body 1 and extends to the inside of lock body 1 close to top end, the front surface of lock body 1 is equipped with through slot, and fingerprint recognizer 6 is installed in the inside of the through slot of the front surface of lock body 1, and PLC controller 8 is installed on the inner bottom surface of lock body 1, further including:

[0034] The limiting mechanism 7 is arranged on the inner top surface of the lock body 1 and used for limiting the insertion rod 5. The limiting mechanism 7 comprises two fixed plates 71 fixed on the inner top surface of the lock body 1, two rotating rollers 72 rotatably connected with the same-side fixed plates 71, a screw rod 73 coaxially fixed between the two rotating rollers 72, a rotating rod 78 coaxially fixed on the side surface of one of the rotating rollers 72 away from the screw rod 73, two gears 79 arranged in the lock body 1 and used for driving the rotating rod 78 to rotate, a moving rod 74 threadedly connected with the screw rod 73 and slidably connected with the inner top surface of the lock body 1, a connecting rod 75 fixed on the front side surface of the moving rod 74, and a limiting rod 76 fixed on the right side surface of the connecting rod 75 and slidably connected with the insertion rod 5. The two gears 79 are meshed with each other. The limiting mechanism 7 further comprises a motor 710 arranged on the side surface of one of the fixed plates 71 away from the screw rod 73 and used for driving the two gears 79 to rotate. The fingerprint identifier 6 is arranged to identify the fingerprint of the user. The lock body 1, the rotating cylinder 2, the rotating column 3, the arc-shaped rod 4, the insertion rod 5 and the limiting mechanism 7 are arranged to make the whole padlock have the locking function. The fingerprint identifier 6 and the PLC controller 8 are arranged to identify the fingerprint signal and control the opening and closing of the motor 710, so as to facilitate the movement of the limiting rod 76 and make the whole device have the fingerprint identification function. The user does not need to manually operate the lock, which saves time and effort and improves the anti-theft performance of the whole padlock.

[0035] In the embodiment, the inner wall of the rotating cylinder 2 is provided with two sliding grooves, and the circumferential outer wall of the rotating column 3 is fixed with two sliding blocks 10 slidably connected with the same-side sliding grooves on the inner wall of the rotating cylinder 2, so as to guide the movement of the rotating column 3.

[0036] In addition, the front side surface of the lock body 1 is provided with a mounting groove in communication with the inner cavity of the lock body 1. The charging interface 12 is mounted in the mounting groove on the front side surface of the lock body 1. The inner bottom surface of the lock body 1 is mounted with the storage battery 9, so as to supply power to the fingerprint identifier 6, the motor 710 and the PLC controller 8.

[0037] Further, the circumferential outer wall of the insertion rod 5 is provided with a limiting hole in the lock body 1, and the limiting rod 76 is slidably connected with the limiting hole on the outer wall of the insertion rod 5, so as to smoothly limit the insertion rod 5.

[0038] Specifically, the inner top surface of the lock body 1 is provided with a guide groove, and the top surface of the moving rod 74 is fixed with a guide block 77 slidably connected with the guide groove on the inner top surface of the lock body 1, so as to guide the movement of the moving rod 74, and indirectly guide the movement of the connecting rod 75 and the limiting rod 76.

[0039] It is worth noting that the limiting mechanism 7 further comprises a rotating shaft 711 coaxially connected with the output shaft of the motor 710, and the two gears 79 are coaxially fixed on the circumferential outer wall of the rotating shaft 711 and the rotating rod 78, so that the two gears 79 can be smoothly driven to rotate, and in turn the screw rod 73 can be smoothly driven to rotate.

[0040] It is worth noting that the limiting mechanism 7 further comprises a rotating shaft 711 coaxially connected with the output shaft of the motor 710, and the two gears 79 are coaxially fixed on the circumferential outer wall of the rotating shaft 711 and the rotating rod 78, so that the two gears 79 can be smoothly driven to rotate, and in turn the screw rod 73 can be smoothly driven to rotate.

[0041] It is worth noting that the limiting mechanism 7 further comprises a rotating shaft 711 coaxially connected with the output shaft of the motor 710, and the two gears 79 are coaxially fixed on the circumferential outer wall of the rotating shaft 711 and the rotating rod 78, so that the two gears 79 can be smoothly driven to rotate, and in turn the screw rod 73 can be smoothly driven to rotate.

[0042] Finally, it should be noted that the lock body 1, the fingerprint recognizer 6, the motor 710, the PLC controller 8, the battery 9 and other components involved in the utility model are all general standard components or components known to those skilled in the art, and their structure and principle are known to those skilled in the art through technical manuals or through conventional experimental methods. In the idle place of the device, all the above-mentioned electrical components, power elements, electrical components and suitable controllers and power supplies are connected by wires according to the working principle of the utility model. The specific connection means should be referred to the working principle of the utility model. The electrical components are connected in the order of working sequence, and the detailed connection means are known in the art.

[0043] In the specific use process of the embodiment, when the unlocking operation is needed, the staff first places the finger for entering the fingerprint in the sensing area on the front surface of the fingerprint identifier 6, the fingerprint identifier 6 identifies the fingerprint signal and transmits the fingerprint signal to the PLC controller 8, the PLC controller 8 controls and starts the motor 710 after processing the signal, the output shaft of the motor 710 rotates to drive the rotating shaft 711 coaxially connected thereto to rotate, the rotating shaft 711 rotates to drive the same side gear 79 fixed coaxially thereto to rotate, the gear 79 rotates to drive another gear 79 engaged therewith to rotate, the other gear 79 rotates to drive the rotating rod 78 fixed coaxially therewith to rotate, the rotating rod 78 rotates to drive the same side rotating roller 72 fixed coaxially therewith to rotate, the rotating roller 72 rotates to drive the screw rod 73 fixed coaxially therewith to rotate, the screw rod 73 rotates to drive the moving rod 74 connected therewith to move, the moving rod 74 moves to the left under the guidance of the guide block 77 and the guide groove on the top surface of the lock body 1, the moving rod 74 moves to drive the connecting rod 75 and the limiting rod 76 to move to the left, until the limiting rod 76 is separated from the limiting hole on the outer wall of the plug rod 5, at this time the PLC controller 8 controls and closes the motor 710, then the arc-shaped rod 4 is pulled upward, the arc-shaped rod 4 moves to drive the plug rod 5 and the rotating column 3 fixed thereto to move upward, the rotating column 3 moves under the guidance of the two sliding blocks 10 and the two sliding grooves on the inner wall of the rotating cylinder 2, until the plug rod 5 is separated from the insertion hole on the top surface of the lock body 1 and moves to the appropriate position above the lock body 1, then the arc-shaped rod 4 is stopped from being pulled, then the angle of the plug rod 5 is adjusted by rotating the rotating cylinder 2, and the unlocking operation is completed, and vice versa, the entire padlock can be locked.

[0044] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application and do not limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A padlock with a fingerprint identification function, comprising a lock body (1), characterized in that, The top surface of the lock body (1) is provided with a rotating cylinder (2) connected therewith, the rotating cylinder (2) is internally provided with a rotating column (3) slidingly connected with the inner wall thereof, the top surface of the lock body (1) is provided with a jack (5) slidingly inserted into the insertion hole in the top surface of the lock body (1) and extending into the lock body (1) near the top end, the front surface of the lock body (1) is provided with a through slot, the front surface of the lock body (1) is provided with a fingerprint recognizer (6) mounted in the through slot, and the inner bottom surface of the lock body (1) is provided with a PLC controller (8), and further comprising: A limiting mechanism (7) is arranged on the inner top surface of the lock body (1) and used for limiting the jack (5), the limiting mechanism (7) comprises two fixed plates (71) fixed on the inner top surface of the lock body (1), two rotating rollers (72) rotatably connected with the same side fixed plate (71), a screw rod (73) coaxially fixed between the two rotating rollers (72), a rotating rod (78) coaxially fixed on the side surface of one of the rotating rollers (72) away from the screw rod (73), two gears (79) arranged in the lock body (1) and used for driving the rotating rod (78) to rotate, a moving rod (74) threadedly connected with the screw rod (73) and slidingly connected with the inner top surface of the lock body (1), a connecting rod (75) fixed on the front surface of the moving rod (74), and a limiting rod (76) fixed on the right surface of the connecting rod (75) and slidingly inserted into the jack (5), the two gears (79) are meshed with each other, and the limiting mechanism (7) further comprises a motor (710) mounted on the side surface of one of the fixed plates (71) away from the screw rod (73) and used for driving the two gears (79) to rotate.

2. The padlock with a fingerprint recognition function according to claim 1, characterized in that: The inner wall of the rotating cylinder (2) is provided with two sliding grooves, and the circumferential outer wall of the rotating column (3) is fixed with two sliding blocks (10) slidingly connected with the same side sliding grooves on the inner wall of the rotating cylinder (2).

3. The padlock with a fingerprint recognition function according to claim 1, characterized in that: The front surface of the lock body (1) is provided with a mounting groove in communication with the inner cavity thereof, the lock body (1) is provided with a charging interface (12) mounted in the mounting groove on the front surface thereof, and the inner bottom surface of the lock body (1) is provided with a storage battery (9).

4. The fingerprint identification enabled padlock of claim 1, wherein: The circumferential outer wall of the jack (5) is provided with a limiting hole in the lock body (1), and the limiting rod (76) is slidingly inserted into the limiting hole on the outer wall of the jack (5).

5. The fingerprint identification enabled padlock of claim 1, wherein: The inner top surface of the lock body (1) is provided with a guide groove, and the top surface of the moving rod (74) is fixed with a guide block (77) slidingly connected with the guide groove on the inner top surface of the lock body (1).

6. The fingerprint identification enabled padlock of claim 3, wherein: The limiting mechanism (7) further comprises a rotating shaft (711) coaxially connected with the output shaft of the motor (710), and the two gears (79) are coaxially fixed on the circumferential outer wall of the rotating shaft (711) and the rotating rod (78), respectively.

7. The fingerprint identification enabled padlock of claim 6, wherein: The limiting mechanism (7) further comprises a protection box (712) fixed on the side surface of one of the fixing plates (71) away from the screw rod (73), the motor (710) is located inside the protection box (712), the rotating shaft (711) penetrates through the outer wall of the motor (710) away from the screw rod (73), and the front side surface of the lock body (1) is provided with a protection plate (11) fixed thereto by a plurality of screws, the protection plate (11) corresponds to the position of the mounting groove on the front side surface of the lock body (1) and is adapted to the size.

8. The fingerprint identification enabled padlock of claim 5, wherein: The longitudinal section shape of the guide groove on the inner top surface of the lock body (1) is a convex shape, and the shape of the guide block (77) is a convex shape adapted to the shape of the guide groove on the inner top surface of the lock body (1).

Citation Information

Patent Citations

  • A padlock

    CN220955120U