A smart handcuff

Abstract

The present invention provides a kind of intelligent handcuffs, belonging to the technical field of police equipment. It solves the problem that the punishment function of the existing intelligent handcuffs has potential safety hazards, resulting in low practicality. The intelligent handcuffs include a movable handcuff ring and a fixed handcuff ring that can enclose and form a closed handcuff opening, a lock shell is provided on the fixed handcuff ring, a top pressure piece is provided on the lock shell, and an electric drive mechanism controlled by a control unit that can drive the top pressure piece to extend into the handcuff opening is also provided on the lock shell. The present invention has the advantages of intelligence, high safety, strong adaptability, etc.

Description

Technical Field

[0001] The invention belongs to the technical field of police equipment and relates to intelligent handcuffs. Background Art

[0002] Handcuffs are a commonly used police device, which is used to restrain the limbs of criminals or suspects so that they cannot move freely. Traditional handcuffs are purely mechanical structures, but with the development of science and technology and the continuous progress of society, some intelligent handcuffs have also been derived. For example, an electronic intelligent handcuff disclosed in a Chinese patent document (authorization announcement number: CN2856342Y) includes a handcuff body, a handcuff beam, an active clasp, a lock body, a remote control, a digital decoding micro wireless remote control receiver, an information processing unit and an electronic sensor. The handcuff body is connected to the handcuff beam through an active clasp, the lock body is installed in the handcuff body, the digital decoding micro wireless remote control receiver, the information processing unit and the electronic sensor are arranged in the handcuff body, the digital decoding micro wireless remote control receiver is connected to the power supply device through a switch, and the remote control remotely controls the handcuffs through wireless signals. In addition, a high-voltage electric shock device is also provided in the handcuff body. When the accused prisoner escapes or commits violence, the police officer can press the electric shock button on the remote control to indirectly shock the prisoner, thereby making the prisoner lose the ability to escape and commit violence. However, the handcuffs rely on high-voltage electric shock devices to punish prisoners' improper behavior. For some prisoners with physical illnesses such as heart disease, there are certain safety risks, and the electric shock can easily induce illness in patients. Due to the hidden dangers in the use of handcuffs, their practicality is reduced, and it is difficult to use them in the court to restrict the behavior of the person being executed during the case handling process. Summary of the invention

[0003] The purpose of the present invention is to solve the above problems in the existing technology and propose a smart handcuff. The present invention solves the problem that the punishment function of the existing smart handcuffs has potential safety hazards, resulting in low practicality.

[0004] The objective of the present invention can be achieved through the following technical scheme: a kind of intelligent handcuffs, comprising a movable handcuff ring and a fixed handcuff ring which can enclose and form a closed handcuff opening, the fixed handcuff ring being provided with a lock shell, characterized in that the lock shell is provided with a top pressure piece, and the lock shell is also provided with an electric drive mechanism which is controlled by a control unit and can drive the top pressure piece to extend into the handcuff opening.

[0005] In actual use, smart handcuffs are used in pairs, and the two smart handcuffs are connected by a metal chain. The electric drive mechanism is used to drive the push piece to move, so that the smart handcuffs can be controlled by the control unit to achieve automation. In this way, when the wearer wears the smart handcuffs, if he does not execute the command or makes abnormal behavior, the electric drive mechanism can be used to drive the push piece to extend into the handcuff mouth. At this time, since the wearer's arm is restrained in the handcuff mouth, the push piece can press the wearer's arm after it extends into the handcuff mouth, causing the wearer to feel uncomfortable or painful, so as to punish the wearer.

[0006] The smart handcuffs rely on the pressure piece to press the wearer's arm to achieve punishment. While ensuring the punishment effect, it will not cause substantial harm to the wearer's body, which makes the use of the smart handcuffs safer and more practical. In the process of handling a case, the court can put the smart handcuffs on the person to be executed and set a time limit for him to report to the court. When the time limit is exceeded and the person to be executed has not arrived at the court to report, the pressure piece can be controlled to extend into the handcuffs to make the wearer feel uncomfortable or painful, so as to punish the wearer and force the person to be executed to report to the court on his own. Therefore, the emergence of the smart handcuffs means that the executing court does not need to arrange special personnel to take the person to be executed back to the local area, avoiding risks on the way and greatly saving manpower and material resources.

[0007] In the above-mentioned intelligent handcuffs, one end of the movable handcuff ring is hinged with the fixed handcuff ring, and the other end of the movable handcuff ring can be extended into the lock shell so that the fixed handcuff ring and the movable handcuff ring are enclosed to form the above-mentioned handcuff opening. The top pressure piece is plate-shaped and is located in the lock shell. The part of the movable handcuff ring extending into the lock shell is stacked with the top pressure piece and has a gap. Through such a design, on the one hand, the top pressure piece will not interfere with the movable handcuff ring, ensuring that the top pressure piece can smoothly extend into the handcuff opening. On the other hand, the compactness of the structure is ensured, so that the size of the handcuffs is relatively small, which is convenient for wearing and using. The top pressure piece adopts a plate-shaped structure. When the top pressure piece extends into the handcuff opening, the wearer's arm can be pressed tightly in the handcuff opening, forming a sense of pain. This method can prevent the wearer from being substantially injured on the basis of ensuring the punishment effect.

[0008] In the above-mentioned smart handcuffs, the top pressure piece is an arc-shaped long strip, and the inner concave surface of the top pressure piece is a tooth surface structure and is arranged toward the cuff opening. Through such a design, the contact area between the top pressure piece and the wearer's arm can be increased, and the inner concave surface of the top pressure piece is a tooth surface structure, which can increase the wearer's pain while ensuring safety in use, thereby achieving a better punishment effect.

[0009] In the above-mentioned intelligent handcuffs, the electric drive mechanism includes a motor arranged in the lock shell, a screw rod is coaxially connected to the main shaft of the motor, a slide seat that can slide back and forth along the length direction of the screw rod is slidably connected to the inner wall of the lock shell, the screw rod passes through the slide seat and is threadedly connected to the slide seat, and the top pressure piece is connected to the slide seat. The slide seat is slidably connected to the inner wall of the lock shell, so that the slide seat can only slide back and forth but cannot rotate. Therefore, when the motor drives the screw rod to rotate, it can drive the slide seat to move back and forth, so that the top pressure piece connected to the slide seat extends into the handcuffs or retracts into the lock shell in the opposite direction. The motor and screw rod are used to drive the top pressure piece to extend and retract. On the one hand, when the top pressure piece moves to any position, it can be locked; on the other hand, by controlling or setting the number of turns of the motor, the distance of the top pressure piece extending can be changed, thereby changing the magnitude of the force of the top pressure piece acting on the wearer's arm, so as to achieve different degrees of punishment according to different actual conditions. In addition, when the wearer has actively cooperated, the top pressure piece can be retracted to stop the punishment by controlling the action of the motor.

[0010] In the above-mentioned smart handcuffs, the slide is arranged at the rear side of the top pressure piece and is spaced apart from the top pressure piece. The top pressure piece and the slide are connected by a connecting rod. A clearance notch is provided on the side of the top pressure piece facing away from the handcuff opening. When the top pressure piece is retracted into the lock shell, the end of the screw rod extends into the clearance notch. The slide is spaced apart from the top pressure piece and connected by a connecting rod, so that in the initial state, the slide is close to the rear end of the screw rod, and a clearance notch for the front end of the screw rod to extend into is provided on the side of the top pressure piece facing away from the handcuff opening, so that the length of the screw rod can be designed to be longer. The above design ensures that the slide has a larger stroke, thereby ensuring that the top pressure piece can extend more into the handcuff opening. At the same time, this design not only meets the stroke requirements of the top pressure piece, but also achieves a compact structure, making the handcuffs relatively small in size and more convenient to wear and use.

[0011] In the above-mentioned smart handcuffs, there are two connecting rods, both of which are parallel to the screw and located on both sides of the screw, one end of each of the two connecting rods is fixedly connected to the slide seat, and the other end is fixedly connected to the top pressure piece. The two connecting rods can make the top pressure piece bear force evenly and move stably, thereby making the use process of the smart handcuffs stable and reliable.

[0012] In the above-mentioned smart handcuffs, the electric drive mechanism includes a motor and a rack arranged in the lock shell, one end of the rack is fixedly connected to the top pressure piece, a gear is connected to the rotating shaft of the motor, the gear is located on one side of the rack and meshes with the rack, a pawl is hinged on the other side of the rack, and a section of ratchet is also provided on the rack, and the pawl can be embedded in the tooth groove of the ratchet when the top pressure piece is inserted into the handcuff mouth. When the motor rotates, it can drive the rack to move, thereby driving the top pressure piece to extend into the handcuff mouth or retract into the lock shell in the opposite direction. The cooperation of the ratchet and the pawl has a one-way locking function. When the top pressure piece extends into the handcuff mouth, the pawl is embedded in the tooth groove of the ratchet, which can prevent the top pressure piece from resetting under the action of external force, so that the wearer cannot release the punishment function by himself when being punished.

[0013] In the above-mentioned smart handcuffs, an electromagnet and an elastic member for driving the ratchet to swing toward the rack are provided in the lock housing. A limit block is also fixedly connected in the lock housing to limit the swing amplitude of the ratchet when the ratchet swings toward the rack. When the ratchet is embedded in the tooth groove of the ratchet, the ratchet abuts against the limit block. The electromagnet can adsorb the ratchet to make the ratchet fall out of the tooth groove of the ratchet. Preferably, the ratchet is hinged to the lock housing through a hinge shaft, and the elastic member is a torsion spring, which is sleeved on the hinge shaft. Of course, the elastic member can also be a tension spring or a compression spring. By providing a limit block, the ratchet can abut against the limit block when it is embedded in the tooth groove of the ratchet, thereby realizing the function of one-way locking to prevent the top pressure member from retracting into the lock housing. When the lock needs to be released, just energize the electromagnet, which will generate magnetism, thereby forming an adsorption effect on the pawl and driving the pawl to swing in the direction away from the rack, so that the pawl falls out of the tooth groove of the ratchet. At this time, the motor can drive the rack to move in the reverse direction, so that the top pressure piece retracts into the lock shell in the reverse direction to stop the punishment.

[0014] In the above-mentioned smart handcuffs, a circuit board and a battery are also provided in the lock shell, the control unit includes a controller arranged on the circuit board, the circuit board is also provided with a GPS module, a wireless communication module and a motor drive circuit, the motor drive circuit is connected to the motor and can control the motor action, the GPS module is connected to the input end of the controller, the motor drive circuit is connected to the output end of the controller, and the wireless communication module is connected to the controller. In actual use, the wireless communication module of the smart handcuffs is wirelessly connected to the monitoring platform, and the monitoring platform is managed by law enforcement personnel. The monitoring platform divides a certain range of activities for different wearers, that is, the GPS map information of the activity area. The GPS module of the smart handcuffs can upload the geographical location information of the wearer to the monitoring platform in real time. If the wearer's positioning information exceeds the prescribed range of activities, the law enforcement personnel can send a command to the controller through the monitoring platform, and the controller sends a control signal to the motor drive circuit, so as to control the motor to drive the top pressure piece to extend into the handcuffs, and punish the wearer to force the wearer to return to the prescribed activity area. When the wearer returns to the prescribed activity area, the law enforcement personnel can also control the top pressure piece to retract into the lock shell in the opposite direction through the monitoring platform to stop the punishment.

[0015] In the above-mentioned smart handcuffs, a solar panel is provided on the outer wall of the lock shell, and the solar panel is connected to the battery and supplies power to the battery. The solar panel can ensure that the battery has sufficient power, making the smart handcuffs reliable to use.

[0016] In the above-mentioned smart handcuffs, a speaker is provided in the lock shell, and the speaker is connected to the output end of the controller, and the controller is also connected to a timer. By setting the timer, the monitoring platform can send the time of surrender to the controller, and the controller stores the time of surrender and controls the timer to count. When the wearer has not surrendered after the surrender time, the controller controls the top pressure piece to extend into the handcuffs to punish the wearer until the monitoring platform sends an instruction to stop the punishment. By setting the speaker, the smart handcuffs have an alarm function. When the wearer exceeds the prescribed range of activities or fails to report to the court on time, the alarm will be triggered. At the same time, the monitoring platform can also control the speaker to broadcast legal documents through the controller to urge and remind the wearer. Alternatively, the speaker can also be controlled to play some stimulating audio, such as gunshots, high-frequency sounds, etc., to cause discomfort to the wearer, thereby punishing the wearer by playing audio to force him to report to the court on his own.

[0017] In the above-mentioned smart handcuffs, a photosensitive sensor is arranged in the lock shell, and the photosensitive sensor is connected to the input end of the controller. The electronic handcuff control unit is fully enclosed, and a photosensitive sensor is added to monitor the condition of the handcuffs. Once the wearer destroys the handcuffs, an alarm will be triggered, and the controller can upload the alarm signal to the monitoring platform, so that law enforcement officers can better monitor the wearer's behavior.

[0018] Compared with the existing technology, this intelligent handcuff has the following advantages:

[0019] 1. The smart handcuffs have a pressure piece and a motor arranged inside the lock shell to form a hidden design. At the same time, a photosensitive sensor is also arranged inside the lock shell, so that the smart handcuffs have anti-pry and anti-shear properties. In addition, the electric drive mechanism and the pressure piece are compactly arranged inside the lock shell, making the smart handcuffs relatively small in size and convenient to wear and use.

[0020] 2. This smart handcuff is equipped with a GPS module that can monitor the wearer's movements in real time. For those who do not respond to the reminder, GPS positioning can be performed to implement compulsory measures such as arrest.

[0021] 3. The smart handcuffs rely on the pressure piece to press the wearer's arm to achieve punishment. On the basis of ensuring the punishment effect, it will not cause substantial harm to the wearer's body, which makes the smart handcuffs safe and practical to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the first embodiment of the intelligent handcuffs.

[0023] Figure 2 This is a schematic diagram of the internal structure of the first embodiment of the smart handcuffs Figure 1 .

[0024] Figure 3 This is a schematic diagram of the internal structure of the first embodiment of the smart handcuffs Figure 2 .

[0025] Figure 4 This is a schematic diagram of the internal structure of the first embodiment of the smart handcuffs Figure 3 .

[0026] Figure 5 It is a cross-sectional view of the first embodiment of the smart handcuffs.

[0027] Figure 6 This is a circuit connection block diagram of the first embodiment of the smart handcuffs.

[0028] Figure 7 This is a schematic diagram of the internal structure of the second embodiment of the smart handcuffs Figure 1 .

[0029] Figure 8 This is a schematic diagram of the internal structure of the second embodiment of the smart handcuffs Figure 2 .

[0030] Fig. 9 This is a schematic diagram of the internal structure of the second embodiment of the smart handcuffs Figure 3 .

[0031] In the figure, 1, handcuff mouth; 2, fixed handcuff ring; 2a, lock shell; 3, dynamic handcuff ring; 3a, latch teeth; 4, top pressure piece; 41, clearance gap; 5, motor; 6, screw rod; 7, slide seat; 8, connecting rod; 9, rack; 91, ratchet; 10, gear; 11, pawl; 12, reed; 13, limit block; 14, electromagnet; 15, circuit board; 16, battery; 17, controller; 18, GPS module; 19, wireless communication module; 20, motor drive circuit; 21, solar panel; 22, speaker; 23, timer; 24, photosensor; 25, monitoring platform; 26, lock tongue; 27, unlocking rotary seat. DETAILED DESCRIPTION

[0032] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0033] Embodiment 1

[0034] like Figure 1 As shown, the smart handcuffs include a fixed handcuff ring 2 and a dynamic handcuff ring 3, one end of the fixed handcuff ring 2 is hinged to one end of the dynamic handcuff ring 3, and the other end of the fixed handcuff ring 2 has a lock shell 2a, and the lock shell 2a and the dynamic handcuff ring 3 are an integrated structure. The fixed handcuff ring 2 and the dynamic handcuff ring 3, including the lock shell 2a, are made of aerospace titanium alloy materials, so that the handcuffs have the characteristics of light weight, high strength, and high temperature resistance, so as to prevent the wearer from opening or prying them open privately. When the handcuffs are in a closed state, the other end of the dynamic handcuff ring 3 is plugged into the lock shell 2a so that the dynamic handcuff ring 3 and the fixed handcuff ring 2 are enclosed to form a closed handcuff opening 1.

[0035] like Figure 2 and Figure 3 As shown, a pressing piece 4 and an electric drive mechanism connected to the pressing piece 4 are provided in the lock housing 2a, and the electric drive mechanism can drive the pressing piece 4 to extend into the handcuff opening 1 and lock the pressing piece 4 after the pressing piece 4 extends into the handcuff opening 1. The pressing piece 4 is an arc-shaped long strip, and the inner concave surface of the pressing piece 4 is a tooth surface structure and is arranged toward the handcuff opening 1. When the handcuffs are in a closed state, the part of the movable handcuff ring 3 extending into the lock housing 2a is stacked with the pressing piece 4 and has a gap. Such a design makes it possible for the pressing piece 4 to not interfere with the movable handcuff ring 3, ensuring that the pressing piece 4 can smoothly extend into the handcuff opening 1. On the other hand, the compactness of the structure is ensured, so that the size of the handcuffs is relatively small.

[0036] Specifically, Figures 2 to 5As shown, the electric drive mechanism includes a motor 5 disposed in the lock housing 2a, a screw rod 6 is coaxially connected to the main shaft of the motor 5, a slide seat 7 that can slide back and forth along the length direction of the screw rod 6 is slidably connected to the inner wall of the lock housing 2a, the slide seat 7 is disposed at the rear side of the top pressing member 4 and is spaced apart from the top pressing member 4, the screw rod 6 passes through the slide seat 7 and is threadedly connected to the slide seat 7, a clearance notch 41 is provided on the side of the top pressing member 4 that faces away from the handcuffs 1, and when the top pressing member 4 is retracted into the lock housing 2a, the end of the screw rod 6 extends into the clearance notch 41. Such a design enables the length of the screw rod 6 to be designed to be longer on the basis of achieving a compact structure, so as to ensure that the slide seat 7 has a larger stroke, thereby ensuring that the top pressing member 4 can extend more into the handcuffs 1. The pressing piece 4 is connected to the slide 7 by a connecting rod 8, wherein there are two connecting rods 8, both of which are parallel to the screw 6 and are respectively located on both sides of the screw 6, one end of each of the two connecting rods 8 is fixedly connected to the slide 7, and the other end is fixedly connected to the rear side of the pressing piece 4. The two connecting rods 6 can make the pressing piece 4 evenly stressed and move stably, thereby making the use of the smart handcuffs stable and reliable.

[0037] The intelligent handcuffs adopt the existing technology for locking and unlocking the dynamic handcuff ring 3. Figure 4 As shown, a lock tongue 26 and a spring sheet 12 abutting against the lock tongue 26 are hingedly connected on the inner wall of the lock housing 2a, and a latching tooth 3a is provided at the end of the movable handcuff ring 3. When the movable handcuff ring 3 extends into the lock housing 2a, the lock tongue 26 can be latched into the latching tooth 3a under the action of the spring sheet 12, so as to lock the handcuffs. When unlocking, a key needs to be inserted into the unlocking rotary seat 27 to drive the unlocking rotary seat 27 to rotate clockwise. After the unlocking rotary seat 27 rotates to a certain angle, it can press on the lock tongue 26 to drive the lock tongue 26 to swing, thereby making the lock tongue 26 disengage from the latching tooth 3a on the movable handcuff ring 3, and the movable handcuff ring 3 can be opened.

[0038] like Figure 4 and Figure 6As shown, the smart handcuffs are also provided with a circuit board 15, a battery 16 and a speaker 22 in the lock shell 2a. A solar panel 21 is provided on the outer wall of the lock shell 2a. The solar panel 21 is connected to the battery 16 and supplies power to the battery 16, and the battery 16 is used to supply power to the motor 5 and various components. The solar panel 21 is provided to ensure that the battery 16 has sufficient power, so that the smart handcuffs can be used reliably. The circuit board 15 is provided with a controller 17, a GPS module 18, a wireless communication module 19 and a motor drive circuit 20. The controller 17 is connected to a timer 23. The motor drive circuit 20 is connected to the motor 5 and can control the action of the motor 5. The GPS module 18 is connected to the input end of the controller 17, the motor drive circuit 20 is connected to the output end of the controller 17, and the wireless communication module 19 is connected to the controller 17. The speaker 22 is connected to the output end of the controller 17. By setting the speaker 22, the smart handcuffs have an alarm function. When the wearer exceeds the prescribed range of activities, an alarm will be triggered. At the same time, the monitoring platform 25 can control the speaker 22 through the controller 17 to broadcast legal documents to supervise and remind the wearer.

[0039] In order to prevent the wearer from destroying the handcuffs by attempting to escape, a light-sensitive sensor 24 is provided in the lock housing 2a. Figure 6 As shown, the photosensitive sensor 24 is connected to the input end of the controller 17. In the present smart handcuffs, the electronic handcuff control unit is fully enclosed, and the photosensitive sensor 24 is added to monitor the condition of the handcuffs. Once the wearer destroys the handcuffs, an alarm will be triggered, and the controller 17 can upload the alarm signal to the monitoring platform 25, so that law enforcement officers can better monitor the behavior of the wearer.

[0040] When the smart handcuffs are in use, the wireless communication module 19 of the smart handcuffs is wirelessly connected to the monitoring platform 25, which is managed by law enforcement personnel. The monitoring platform 25 divides a certain range of activities for different wearers, that is, the GPS map information of the activity area. The GPS module 18 of the smart handcuffs can upload the geographical location information of the wearer to the monitoring platform 25 in real time. If the wearer's location information exceeds the specified range of activities, the law enforcement personnel can send a command to the controller 17 through the monitoring platform 25, and the controller 17 will send a control signal to the motor drive circuit 20, thereby controlling the motor 5 to drive the top pressure piece 4 to extend into the handcuff mouth 1, forming a Figure 3 and Figure 4 When the wearer returns to the specified activity area, the law enforcement officer can also control the top pressure piece 4 to retract into the lock shell 2a through the monitoring platform 25, forming a lock. Figure 2 status shown to stop the punishment.

[0041] This intelligent handcuff relies on the pressing member 4 to press against the wearer's arm to achieve punishment. On the basis of ensuring the punishment effect, it will not cause substantial harm to the wearer's body, which makes this intelligent handcuff relatively safe to use and has high practicability.

[0042] During the process of handling cases, the court can put this intelligent handcuff on the person subject to execution, rely on the timer to time, and set the time limit for him / her to report to the court, such as setting that he / she must arrive at the court to report within 48 hours. When the time limit is exceeded, or the location information of the person subject to execution exceeds the specified activity range, an alarm will be triggered. At the same time, the control unit controls the pressing member to extend into the handcuff opening to make the person subject to execution feel uncomfortable or painful, or controls the speaker to play some irritating audio, such as gunshots, high-frequency sounds, etc., to cause discomfort to the person subject to execution, so as to punish the person subject to execution and force the person subject to execution to report to the court by himself / herself. Therefore, the appearance of this intelligent handcuff enables the executing court not to arrange special personnel to bring the person subject to execution back to the local area all the way, avoids the risks during the journey, greatly saves manpower and material resources, and thus can greatly improve the case handling efficiency of the executing court.

[0043] Embodiment 2

[0044] The structure and principle of this embodiment are basically the same as those of Embodiment 1, and the difference lies in the structure of the electric drive mechanism:

[0045] As Figures 7 to 9 shown, the electric drive mechanism includes a motor 5 (the motor 5 is not shown in the figure) and a rack 9 arranged in the lock shell 2a. One end of the rack 9 is fixedly connected to the pressing member 4. A gear 10 is connected to the rotating shaft of the motor 5. The gear 10 is located on one side of the rack 9 and meshes with the rack 9. A pawl 11 is hinged on the other side of the rack 9. The pawl 11 is hinged to the lock shell 2a through a hinge shaft. A torsion spring (the torsion spring is not shown in the figure) for driving the pawl 11 to swing towards the rack 9 is sleeved on the hinge shaft. A section of ratchet teeth 91 is provided on the rack 9. A limit block 13 for restricting the swing amplitude of the ratchet teeth 91 when the ratchet teeth 91 swing towards the rack 9 is also fixedly connected in the lock shell 2a. When the pressing member 4 extends into the handcuff opening 1, the pawl 11 can be embedded in the tooth groove of the ratchet teeth 91, and at the same time, the pawl 11 abuts against the limit block 13. An electromagnet 14 is provided on the side of the pawl 11 facing away from the rack 9, and the electromagnet 14 can adsorb the pawl 11 to make the pawl 11 disengage from the tooth groove of the ratchet teeth 91.

[0046] As Figure 7 shown, in the normal state, the electromagnet 14 is not energized, and the pawl 11 always abuts against the limit block 13 under the action of the torsion spring. At this time, the pressing member 4 is located inside the lock shell 2a.

[0047] As Figure 8As shown, when the wearer needs to be punished, the motor 5 drives the gear 10 to rotate, and the rack 9 drives the top pressure piece 4 to move toward the inside of the strap. During the movement, the pawl 11 contacts the ratchet 91 and jumps. When the motor 5 stops rotating, the pawl 11 can automatically fit into the tooth groove of the corresponding ratchet 91 due to the action of the torsion spring. At this time, the pawl 11 abuts against the limit block 13 to achieve a one-way locking function, which can prevent the top pressure piece 4 from resetting under the action of external force, so that the wearer cannot release the punishment function by himself when being punished.

[0048] like Fig. 9 As shown, when the punishment function needs to be released, the controller 17 first controls the electromagnet 14 to be energized. The electromagnet 14 will generate magnetism when it is energized, thereby forming an adsorption effect on the pawl 11, and driving the pawl 11 to swing in the direction away from the rack 9, so that the pawl 11 is disengaged from the tooth groove of the ratchet 91, and then the motor 5 is reversed to drive the rack 9 to move in the reverse direction, so that the top pressure piece 4 is reversed and retracted into the lock shell 2a to stop the punishment.

[0049] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0050] Although this article uses more terms such as 1, cuff mouth; 3, dynamic cuff ring; 3a, latch teeth; 2, fixed cuff ring; 2a, lock shell; 4, top pressure piece; 41, clearance gap; 5, motor; 6, screw rod; 7, slide seat; 8, connecting rod; 9, rack; 91, ratchet; 10, gear; 11, pawl; 12, reed; 13, limit block; 14, electromagnet; 15, circuit board; 16, battery; 17, controller; 18, GPS module; 19, wireless communication module; 20, motor drive circuit; 21, solar panel; 22, speaker; 23, timer; 24, photosensitive sensor; 25, monitoring platform; 26, lock tongue; 27, unlocking rotary seat, etc., it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A smart handcuff, comprising a fixed handcuff ring (2) and a movable handcuff ring (3) capable of enclosing to form a closed handcuff opening (1), the fixed handcuff ring (2) being provided with a lock shell (2a), the lock shell (2a) being provided with a pressing piece (4), the lock shell (2a) being further provided with an electric drive mechanism controlled by a control unit and capable of driving the pressing piece (4) to extend into the handcuff opening (1), one end of the movable handcuff ring (3) being hinged to the fixed handcuff ring (2), the other end of the movable handcuff ring (3) being capable of extending into the lock shell (2a) so that the fixed handcuff ring (2) and the movable handcuff ring (3) are enclosed to form the above-mentioned handcuff opening (1), the pressing piece (4) being located in the lock shell (2a), It is characterized in that The pressing piece (4) is an arc-shaped long strip, the part of the movable cuff ring (3) extending into the lock housing (2a) is stacked with the pressing piece (4) and has a gap, and the inner concave surface of the pressing piece (4) is a tooth surface structure and is arranged toward the cuff opening (1).

2. The smart handcuffs according to claim 1, It is characterized in that The electric drive mechanism comprises a motor (5) arranged in a lock housing (2a); a screw rod (6) is coaxially connected to the main shaft of the motor (5); a slide seat (7) is slidably connected to the inner wall of the lock housing (2a) and can slide back and forth along the length direction of the screw rod (6); the screw rod (6) passes through the slide seat (7) and is threadedly connected to the slide seat (7); and the top pressure piece (4) is connected to the slide seat (7).

3. The smart handcuffs according to claim 2, It is characterized in that The slide seat (7) is arranged at the rear side of the pressing member (4) and is spaced apart from the pressing member (4). The pressing member (4) and the slide seat (7) are connected via a connecting rod (8). A clearance notch (41) is provided on the side of the pressing member (4) facing away from the cuff (1). When the pressing member (4) is retracted into the lock housing (2a), the end of the screw rod (6) extends into the clearance notch (41).

4. The smart handcuffs according to claim 3, It is characterized in that There are two connecting rods (8), which are respectively located on both sides of the screw rod (6). One end of the two connecting rods (8) is fixedly connected to the slide seat (7), and the other end is fixedly connected to the top pressure piece (4).

5. The smart handcuffs according to claim 1, It is characterized in that The electric drive mechanism comprises a motor (5) and a rack (9) arranged in a lock housing (2a), one end of the rack (9) is fixedly connected to a pressing member (4), a gear (10) is connected to the rotating shaft of the motor (5), the gear (10) is located on one side of the rack (9) and meshes with the rack (9), a ratchet (11) is hinged on the other side of the rack (9), a ratchet (91) is also provided on the rack (9), and when the pressing member (4) extends into the cuff (1), the ratchet (11) can be embedded in the tooth groove of the ratchet (91).

6. The smart handcuffs according to claim 5, It is characterized in that An electromagnet (14) and an elastic member for driving the ratchet (11) to swing toward the rack (9) are provided in the lock housing (2a). A limit block (13) is also fixedly connected in the lock housing (2a) for limiting the swing amplitude of the ratchet (11) when the ratchet (11) swings toward the rack (9). When the ratchet (11) is embedded in the tooth groove of the ratchet (91), the ratchet (11) abuts against the limit block (13). The electromagnet (14) can absorb the ratchet (11) to make the ratchet (11) escape from the tooth groove of the ratchet (91).

7. The smart handcuffs according to any one of claims 2 to 6, It is characterized in that A circuit board (15) and a battery (16) are also provided in the lock housing (2a); the control unit comprises a controller (17) provided on the circuit board (15); a GPS module (18), a wireless communication module (19) and a motor drive circuit (20) are also provided on the circuit board (15); the motor drive circuit (20) is connected to the motor (5) and can control the movement of the motor (5); the GPS module (18) is connected to the input end of the controller (17); the motor drive circuit (20) is connected to the output end of the controller (17); and the wireless communication module (19) is connected to the controller (17).

8. The smart handcuffs according to claim 7, It is characterized in that A solar panel (21) is provided on the outer wall of the lock housing (2a), the solar panel (21) is connected to a storage battery (16) and supplies power to the storage battery (16), a speaker (22) and a light sensor (24) are provided inside the lock housing (2a), the speaker (22) is connected to an output end of a controller (17), the light sensor (24) is connected to an input end of the controller (17), and the controller (17) is also connected to a timer (23).

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