Safety control escorting seat for police vehicle

Abstract

The invention discloses a safety control escorting seat for a police vehicle in the technical field of escorting seats. The safety control escorting seat comprises a seat cushion; a backrest is arranged on the seat cushion; a head limiting assembly and a limb limiting assembly are arranged on the backrest; the head limiting assembly comprises a head cover, a containing cavity is formed in the head cover, an extrusion assembly is arranged in the containing cavity, and the extrusion assembly is used for generating fluid resistance of the corresponding size based on the head movement condition of the suspect and limiting the head movement range of the suspect; the limb limiting assembly comprises a binding mechanism and an energy storage mechanism, the binding mechanism is used for limiting the trunk and arm movement range of the suspect, and the energy storage mechanism is used for converting struggling force generated when the suspect struggles into internal energy and transmitting the internal energy to the extrusion assembly till fluid resistance is increased. According to the scheme, the limiting effect on the suspect is improved through an energy conversion mechanism, and meanwhile dependence on external energy is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of escort seats, in particular to a safety control escort seat for a police vehicle. Background Art

[0002] With the rapid development of society and the increasingly severe public security situation, public security organs play a vital role in maintaining social stability and combating criminal activities. Among them, escorting criminal suspects is one of the most common law enforcement activities of public security organs. However, in this process, ensuring the safety of criminal suspects and police officers faces many challenges.

[0003] In the current escort process, in order to ensure the safety and control of the suspects, the escort seats are equipped with a variety of locking components, such as handcuffs, shackles, connecting chains and restraints, etc., to fix the suspects' limbs. However, even with these measures, in some long-distance escort scenarios, criminal suspects still take extreme actions from time to time, which poses a great challenge and psychological burden to police officers. For example, some criminal suspects may violently hit vehicles or police officers with their heads because they cannot bear the psychological pressure, trying to evade legal sanctions by self-mutilation or attacking others. What's more serious is that if the suspects carry infectious diseases, they may spit at police officers as a means of spreading the disease, which not only increases the difficulty of the police officers' work, but also seriously threatens their health and safety.

[0004] Therefore, for the current police vehicle escort process, there is an urgent need for an advanced safety control escort seat, which is designed to effectively prevent criminal suspects from self-harming or attacking others, thereby ensuring that the personal safety of police officers is fully protected when performing escort tasks. Summary of the invention

[0005] In order to solve the above problems, the purpose of the present invention is to provide a police vehicle safety control escort seat, which can effectively curb the criminal suspect's impulse to self-harm or attack others, provide solid protection for police officers, and thus improve the safety of escort work.

[0006] In order to achieve the above object, the technical solution of the present invention is as follows:

[0007] A police vehicle safety control escort seat, comprising a seat cushion;

[0008] The seat cushion is provided with a backrest; the backrest is provided with a head limiting assembly and a limb limiting assembly; the head limiting assembly includes a head cover, a receiving chamber is provided in the head cover, an extrusion assembly is provided in the receiving chamber, and the extrusion assembly is used to generate a fluid resistance of corresponding magnitude based on the movement of the suspect's head and limit the movement range of the suspect's head; the limb limiting assembly includes a binding mechanism and an energy storage mechanism, the binding mechanism is used to limit the movement range of the suspect's torso and arms, and the energy storage mechanism is used to convert the escaping force generated by the suspect's struggle into internal energy and transmit it to the extrusion assembly until the fluid resistance increases.

[0009] The above scheme has the following beneficial effects:

[0010] 1. This scheme fixes the suspect's head in the accommodating cavity by using a head limiting assembly, and binds the suspect's torso and arms by using a limb limiting assembly. When the suspect attempts to break free from the restraints, the head limiting assembly generates a fluid resistance of corresponding magnitude according to the suspect's head movement force to limit the movement of the head. The more intense the head movement, the greater the fluid resistance generated by the head limiting assembly, thereby tightly fixing the suspect's head. At the same time, when the suspect's limbs and torso struggle, the binding mechanism transfers the suspect's breaking free force to the energy storage mechanism. The energy storage mechanism uses the breaking free force to generate internal energy of the compressed fluid, and transfers the internal energy to the head limiting assembly, thereby enhancing the fluid resistance generated by the head limiting assembly, thereby strengthening the fixation of the suspect's head.

[0011] Compared with the existing technology, this solution fixes the suspect's head through the head limit assembly. When the suspect tries to break free, the head limit assembly can adaptively adjust the size of the fluid resistance according to the force of his head movement. This adaptive mechanism ensures that the head limit assembly can always tightly fix the suspect's head to prevent him from escaping. At the same time, because the head limit assembly adopts the principle of fluid resistance, it is softer than the traditional mechanical fixation method, reducing the potential damage to the suspect's head and neck.

[0012] When the suspect struggles, the escape force generated is captured by the binding mechanism and transmitted to the energy storage mechanism. These escape forces are converted into the internal energy of the compressed fluid, further enhancing the fluid resistance of the head limit assembly. This solution improves the restraining effect of the head limit assembly on the suspect's head through the energy conversion mechanism, while reducing the dependence on external energy.

[0013] 2. This plan significantly reduces the risk of suspects harming themselves or attacking police officers by limiting their range of movement, especially the movement of their heads and limbs, and effectively protects the personal safety of police officers.

[0014] 3. This solution improves the practicality and adaptability of the seat by adjusting the restraining force of the head limit assembly according to the specific circumstances of the suspect.

[0015] Furthermore, the extrusion assembly includes a plurality of limit plates arranged in the accommodating chamber and a plurality of main pipes arranged in the side walls of the accommodating chamber. The limit plates match the shape of the suspect's head, and the limit plates correspond to the main pipes one by one. A second piston is slidably fitted in the main pipes, and a movable shaft is fixedly connected to the side of the second piston close to the limit plate. The movable shaft is slidably fitted with the main pipe, and one end of the movable shaft close to the limit plate extends into the accommodating chamber and is fixedly connected to the limit plate; the end of the main pipe away from the limit plate is connected to a branch pipe, and a limiting flow assembly is arranged in the branch pipe, and the limiting flow assembly is used to limit the flow of fluid from the branch pipe to the main chamber; the branch pipe is connected to the main chamber, and the main chamber is connected to all branch pipes.

[0016] Beneficial effect: When the suspect's head moves violently, the limit plate will be squeezed by the extrusion force generated by the movement, so that the limit plate tends to move away from the head. The movement of the limit plate will drive the movable shaft to move, and the movement of the movable shaft will drive the piston to move. The movement of the piston will push the air in the main pipe to the branch pipe. After the air enters the branch pipe, the flow limiting component will limit the normal flow of air. At this time, the air pressure between the main pipe and the branch pipe will increase, thereby counteracting the continued movement of the piston. The piston is hindered and the movement of the movable shaft is restricted. The restricted movable shaft will limit the movement of the limit plate, thereby limiting the range of movement of the suspect's head and fixing the suspect's head. The harder the suspect's head exerts, the greater the air pressure generated between the main pipe and the branch pipe, and the tighter and more firmly the limit plate fixes the head.

[0017] Furthermore, the flow limiting component includes a first channel and at least one second channel; the first channel is used for normal flow of fluid between the main pipeline and the main chamber; the second channel is used to divert the fluid in the first channel and change the flow direction after diversion until it is contrary to the flow direction from the main pipeline into the main chamber.

[0018] Beneficial effect: when air flows from the main chamber to the branch pipe, part of the air enters the second channel. Since the flow direction in the second channel is contrary to that in the first channel, the air in the second channel will hinder the normal flow of air in the first channel, thereby generating positive pressure between the main pipe and the branch pipe, preventing the further movement of the limit plate. In addition, the air flowing into the main chamber through the first channel increases the air pressure in the main chamber. The increased air pressure in the main chamber discharges part of the air into the main pipe connected to other limit plates (limit plates that are not squeezed by the suspect's head), prompting the piston and movable shaft in the main pipe to push the limit plate out, thereby ensuring that the limit plate is in close contact with the suspect's head and improving the limiting and fixing effect of the head.

[0019] Furthermore, the binding mechanism includes a plurality of straps; both ends of the straps are fixedly connected with racks; a plurality of slots are arranged on the backrest, and the slots correspond to the racks one by one; a slider is arranged on one side of the slots, a limiting slot is arranged on the slider, a limiting tooth is arranged in the limiting slot, the limiting tooth and the limiting slot are slidably matched, and a spring is arranged between the limiting slot and the limiting tooth.

[0020] Beneficial effect: When the suspect needs to be controlled, the restraint belt is wrapped around the suspect's body surface, and then the rack is inserted into the slot. The limit teeth will clamp the rack to prevent the rack from escaping from the slot, thereby fixing the suspect's torso and arms. By controlling the depth of the rack inserted into the slot, suspects of different body shapes can be fixed.

[0021] Furthermore, the energy storage mechanism includes a plurality of closed chambers arranged in the backrest; the closed chambers correspond to the slots one by one, and a first piston and a conduit are provided in each of the closed chambers; the first piston slides in cooperation with the closed chamber; one end of the slider is embedded in the closed chamber and fixedly connected to the first piston; the slider slides in cooperation with the closed chamber and the slots respectively; and the conduit connects each closed chamber with the main chamber.

[0022] Beneficial effect: When the suspect struggles with his limbs, the restraint belt is stretched and the rack moves, and the rack engages with the limit tooth, thereby driving the slider to move. The movement of the slider drives the piston to squeeze the air in the closed chamber, thereby increasing the internal energy of the air in the closed chamber, and transferring the energy to the main chamber through the conduit, thereby increasing the air pressure in the main chamber. The main chamber transfers the positive pressure to each main pipe, prompting the second piston to push outward away from the limit plate, thereby enhancing the fixation of the suspect's head.

[0023] Furthermore, the main pipeline is connected to at least two branch pipelines; only one of the branch pipelines is provided with a first channel and at least one second channel; a baffle and a servo motor are provided at the intersection of the branch pipeline and the main pipeline, the baffle is rotatably connected to the head cover, and the servo motor is used to drive the baffle to rotate; a tension sensor is provided in each restraint belt, and the tension sensor is electrically connected to the control unit;

[0024] It also includes an audio collection unit; the audio collection unit is used to obtain surrounding voice features; the control unit is used to judge the suspect's emotional state based on the tension information and voice features of the tension sensor, and control the operation of the servo motor.

[0025] Beneficial effect: When the control unit obtains through the tension sensor that the restraint belt is not pulled, and the surrounding voice features do not contain insults and other words, and the sound intensity (loudness) is not higher than the preset sound intensity, it analyzes and judges that the suspect is in a normal mood, and controls the motor to drive the baffle to rotate, so that the baffle seals the branch pipe with the current limiting component, so that the main pipe is connected to the branch pipe without the current limiting component, so that the limit plate can move normally, thereby reducing the discomfort of the suspect, and considering the human rights protection and comfort of the suspect in specific situations. In this way, it adapts to different usage scenarios and needs, and improves its applicability and practicality.

[0026] Furthermore, handcuffs are arranged at the bottom of the backrest; and leg cuffs are arranged at the bottom of the seat.

[0027] Beneficial effects: The range of motion of the suspect's hands is limited by handcuffs, and the range of motion of the suspect's legs is limited by legcuffs, thereby improving the safety of the escort process. This double restraint method can effectively prevent the suspect from escaping or resisting during the escort process.

[0028] Furthermore, a lifting slot is provided on the backrest, and a lifting rod, a gear and a stepper motor are provided in the lifting slot; a plurality of gear teeth are provided on one side of the lifting rod, the gear is meshed with the lifting rod, and the stepper motor is used to drive the gear to rotate; a protrusion is provided on one side of the head cover, and the protrusion is fixedly connected to the lifting rod.

[0029] Beneficial effect: The gear is driven to rotate by a stepper motor, and the gear is meshed with the gear teeth on the lifting rod, thereby driving the lifting rod to move vertically in the lifting slot, and the lifting rod drives the hood to move up and down, thereby adjusting the height of the hood to match suspects of different heights and body shapes.

[0030] Furthermore, a groove is arranged in the accommodating cavity at a side away from the backrest.

[0031] Beneficial effect: by arranging the groove in the hood, when the hood is fixed to the suspect's head, the groove just accommodates the opposite mouth and nose, thereby ensuring that the suspect breathes smoothly.

[0032] Furthermore, a temperature sensor and an alarm unit are provided on the limit plate; the alarm unit is used to send an alarm prompt to the police officers; and the control unit is also used to control the operation of the alarm unit based on the suspect's body temperature information.

[0033] Beneficial effects: Real-time monitoring and alarm prompts of body temperature information can help prevent potential risks caused by abnormal body temperature, such as disease transmission or sudden health problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 The present invention is a schematic structural diagram of a police vehicle safety control escort seat.

[0035] Figure 2 for Figure 1 Top view of the .

[0036] Figure 3 for Figure 2 Middle AA section view.

[0037] Figure 4 for Figure 1 Schematic diagram of the internal structure of the middle hood.

[0038] Figure 5 for Figure 4 A partial enlarged schematic diagram of point M in the middle.

[0039] Figure 6 for Figure 3 A partial enlarged schematic diagram of point N in the middle.

[0040] Figure 7 The present invention is a schematic diagram of a binding mechanism for safely controlling an escort seat in a police vehicle. DETAILED DESCRIPTION

[0041] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0042] In the description of the present invention, it is to be understood that the terms “longitudinal”, “lateral”, “vertical”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside” and “outside” etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0043] In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal connection between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0044] The following is further described in detail through specific implementation methods:

[0045] The figure marks in the drawings of the specification include: seat cushion 1, backrest 2, head cover 3, temperature sensor 4, tension sensor 5, catheter 6, closed chamber 7, first piston 8, restraint belt 101, handcuffs 102, leg cuffs 103, rack 104, slot 105, slider 106, limit slot 107, spring 108, limit tooth 109, lifting rod 201, gear 202, accommodating chamber 301, limit plate 302, groove 303, protrusion 304, main chamber 305, connecting pipe 306, main pipeline 307, branch pipeline 308, flow limiting assembly 309, baffle 310, second piston 3071, movable shaft 3072, first channel 3092, second channel 3091.

[0046] The embodiment is basically as shown in the attached Figure 1-Figure 7 As shown:

[0047] A police vehicle safety control escort seat comprises a seat cushion 1.

[0048] A backrest 2 is welded and fixed on one side of the seat cushion 1 to facilitate the suspect to lean on it; a head limit assembly and a limb limit assembly are arranged on the backrest 2; the head limit assembly includes a head cover 3, a receiving chamber 301 is provided in the head cover 3, a groove 303 is provided in the receiving chamber 301 on the side away from the backrest 2, and the groove 303 can adapt to the breathing parts of the suspect's face such as the nose and mouth to ensure that the suspect breathes smoothly. An extrusion assembly is arranged in the receiving chamber 301, and the extrusion assembly is used to generate a corresponding amount of fluid resistance based on the movement of the suspect's head and limit the range of movement of the suspect's head; in this embodiment, the fluid resistance is air resistance, but is not limited to air resistance. Specifically, in this embodiment, the air resistance refers to the resistance generated by compressed air.

[0049] The specific extrusion assembly includes a plurality of limit plates 302 disposed in the accommodating chamber 301 and a plurality of main pipes 307 opened in the side wall of the accommodating chamber 301. The limit plates 302 match the shape of the suspect's head. The limit plates 302 correspond to the main pipes 307 one by one. The main pipes 307 are all slidably matched with second pistons 3071. Figure 5 As shown, a movable shaft 3072 is welded and fixed to the side of the second piston 3071 close to the limit plate 302, and the movable shaft 3072 is slidably matched with the main pipe 307. Figure 4 As shown, the movable shaft 3072 extends into the accommodating cavity 301 near one end of the limiting plate 302 and is welded and fixed to the limiting plate 302; the main pipeline 307 is connected to a branch pipeline 308 at one end away from the limiting plate 302, and a flow limiting component 309 is arranged in the branch pipeline 308, and the flow limiting component 309 is used to limit the flow of fluid from the branch pipeline 308 to the main chamber 305; the branch pipeline 308 is connected to the main chamber 305, and the main chamber 305 is connected to all the branch pipelines 308.

[0050] The current limiting component 309 includes a first channel 3092 and at least one second channel 3091; Figure 5 As shown, the first channel 3092 is used for the normal flow of fluid between the main pipeline 307 and the main chamber 305; the second channel 3091 is used to divert the fluid in the first channel 3092 and change the flow direction after diversion until it is contrary to the flow direction from the main pipeline 307 to the main chamber 305.

[0051] The limb limiting assembly includes a binding mechanism and an energy storage mechanism. The binding mechanism is used to limit the range of motion of the suspect's torso and arms. The energy storage mechanism is used to convert the escaping force generated by the suspect's struggle into internal energy and transmit it to the extrusion assembly until the fluid resistance increases.

[0052] Specifically, as attached Figure 7 As shown, the binding mechanism includes a plurality of straps 101, in this example there are two straps 101; racks 104 are bolted to both ends of the straps 101; a plurality of slots 105 are provided on the backrest 2, and the slots 105 correspond to the racks 104 one by one; a slider 106 is slidably fitted on one side of the slots 105, a limiting slot 107 is provided on the slider 106, a limiting tooth 109 is arranged in the limiting slot 107, the limiting tooth 109 is slidably fitted with the limiting slot 107, a spring 108 is bonded and fixed between the limiting slot 107 and the limiting tooth 109, and the spring 108 pushes the limiting tooth 109 away from the limiting slot 107.

[0053] Specifically, as attached Figure 7 As shown, the energy storage mechanism includes a plurality of closed chambers 7 opened in the backrest 2; the closed chambers 7 correspond to the slots 105 one by one, and the closed chambers 7 are each provided with a first piston 8 and a conduit 6; the first piston 8 is slidably matched with the closed chamber 7; one end of the slider 106 is embedded in the closed chamber 7 and is welded and fixed to the first piston 8; the slider 106 is slidably matched with the closed chamber 7; the conduit 6 connects each closed chamber 7 with the main chamber 305.

[0054] Specifically, handcuffs 102 are welded and fixed to the bottom of the backrest 2, so that the suspect's hands are handcuffed 102 behind the backrest 2; leg cuffs 103 are glued and fixed to the bottom of the seat to limit the movement of the suspect's legs. Through the multiple restrictions of handcuffs 102, leg cuffs 103, limit blocks and restraints 101, the suspect's self-harm or aggressive behavior can be effectively curbed.

[0055] A lifting groove (not shown in the figure) is also provided on the backrest 2, and a lifting rod 201, a gear 202 and a stepper motor are arranged in the lifting groove; a plurality of gear teeth are welded and fixed on one side of the lifting rod 201, and the gear 202 is meshed with the lifting rod 201, so as to realize the linkage between the lifting rod 201 and the gear 202, and the stepper motor is used to drive the gear 202 to rotate, so as to realize the lifting and lowering of the lifting rod 201; a protrusion 304 is welded and fixed on one side of the head cover 3, and the protrusion 304 is welded and fixed to the lifting rod 201, so as to drive the head cover 3 and the lifting rod 201 to move together.

[0056] The specific implementation process is as follows:

[0057] When the suspect needs to be escorted, the stepper motor is started, and the stepper motor drives the gear 202 to rotate, and the gear 202 meshes with the gear teeth on the lifting rod 201, thereby driving the lifting rod 201 to rise or fall along the lifting slot, thereby adjusting the height of the head cover 3 to match the height of the suspect. Then the suspect's head is placed in the accommodating cavity 301, so that the suspect's head is against the limiting plate 302. In this embodiment, there are 4 limiting plates 302, which are respectively located in the front, back, left, and right directions of the head.

[0058] Then, the suspect's torso and upper limbs are bound by the restraint belt 101, the suspect's hands are handcuffed 102 on the handcuffs 102 behind the backrest 2, the suspect's feet are handcuffed 103 on the footcuffs 103, and the rack 104 is inserted into the slot 105. When the tooth top of the rack 104 passes the limiting tooth 109, the tooth top will push the limiting tooth 109 back into the limiting slot 107. When the tooth groove of the rack 104 passes the limiting tooth 109, the spring 108 will push the limiting tooth 109 out to engage with the tooth groove. When the rack 104 moves out of the slot 105 in the opposite direction, the limiting tooth 109 will limit the movement of the rack 104, thereby preventing the suspect from breaking free from the restraints. Preferably, in this embodiment, the limit tooth 109 is made of magnetic material. When the police officer needs to remove the rack 104, by placing a magnet on one side of the backrest 2 and using magnetic force to suck the limit tooth 109 back into the limit groove 107, the rack 104 can be smoothly taken out.

[0059] When the suspect is in an abnormal mood and intends to self-harm or attack police officers, for example, when the suspect intends to hit his head forward, the limit plate 302 located in front of the head will receive the squeezing force of the suspect's head, and the limit plate 302 on the suspect's head will push the movable shaft 3072 and the second piston 3071 to move into the main pipe 307. The second piston 3071 pushes the air in the main pipe 307 into the branch pipe 308. After passing through the branch pipe 308, the air is divided into two waves of airflow, one wave passes normally through the first channel 3092, and the other wave changes its flow direction after passing through the second channel 3091 and impacts the airflow in the first channel 3092, thereby hindering the flow of air in the first channel 3092. Since the suspect's struggle generates great force, the air pressure between the main pipe 307 and the branch pipe 308 increases sharply, and the speed at which the air is released from the branch pipe 308 is much lower than the speed at which the air expands. Therefore, the air between the main pipe 307 and the branch pipe 308 will reversely hinder the movement of the second piston 3071, thereby limiting the movement of the limit plate 302 in front of the suspect's head, thereby limiting the movement of the suspect's head. At the same time, since the suspect squeezes the limit plate 302 in front, part of the air is released from the main pipe 307. 07 is discharged into the main chamber 305, so that the air pressure in the main chamber 305 increases. After the air pressure in the main chamber 305 increases, the excess air is discharged into other branch pipes 308. When the air flows from the branch pipe 308 to the main pipe 307, the second channel 3091 will not produce an airflow in the opposite direction. Therefore, the air pressure between the other branch pipes 308 and the main pipe 307 will increase rapidly, thereby pushing the other limiting plates 302 out of the main pipe 307, so that the limiting plates 302 and the suspect's head are in close contact at any time.

[0060] Attached Figure 7 As shown, when the suspect struggles, the restraint belt 101 is squeezed and tends to stretch outward. The restraint belt 101 transmits the suspect's breaking free force to the rack 104, and then to the slider 106 through the rack 104, so that the slider 106 transmits the force to the first piston 8. The first piston 8 squeezes the air in the closed chamber 7. After being squeezed, the air in the closed chamber 7 enters the main chamber 305 through the conduit 6, thereby increasing the air pressure in the main chamber 305. The main chamber 305 then transmits the air pressure to each branch pipe 308 and the main pipe 307, so that the second piston 3071 moves outward, thereby enhancing the fixation of the suspect's head by the limiting plate 302.

[0061] And because the main chamber 305 and the sealed chamber 7 are interconnected, the escape force generated by the suspect's head and torso can be transmitted and utilized to each other. For example, the escape force generated by the suspect's head is transmitted to the sealed chamber 7 to strengthen the restraint on the torso and arms, and the escape force generated by the suspect's torso can also be transmitted to the main chamber 305 to strengthen the fixation of the suspect's head. This not only improves the restraint efficiency of each limiting component, but also ensures that the suspect cannot easily break free when being restrained.

[0062] Example 2

[0063] The difference from the above embodiment is that the main pipeline 307 is connected with at least two branch pipelines 308; only one branch pipeline 308 among the plurality of branch pipelines 308 is provided with a first channel 3092 and at least one second channel 3091; a baffle 310 and a servo motor are provided at the intersection of the branch pipeline 308 and the main pipeline 307, the baffle 310 is rotatably connected to the head cover 3, and the servo motor is used to drive the baffle 310 to rotate; a tension sensor 5 is provided in each of the restraint belts 101, and the tension sensor 5 is electrically connected to the control unit;

[0064] It also includes an audio acquisition unit; the audio acquisition unit is used to obtain surrounding voice features; the control unit is used to judge the suspect's emotional state based on the tension information and voice features of the tension sensor 5, and control the operation of the servo motor.

[0065] The specific implementation process is as follows:

[0066] During the escort process, the control unit collects the voice features in the car in real time through the audio collection unit, specifically the information content carried by the suspect's voice in the car, the sound intensity of the voice, etc. If the suspect's voice contains abusive words, phrases, sentences or features indicating anger (such as higher volume, faster speaking speed, nervous tone), or the tension sensor 5 collects that the tension on the restraint belt 101 exceeds the threshold, when any of the above situations exists, the control unit determines that the suspect's emotional state is poor, and then controls the servo motor to work, so that the baffle 310 rotates to block the branch pipe 308 without the flow limiting component 309, so that the flow limiting component 309 can limit the air flow, thereby increasing the resistance when the suspect's head moves, reducing its ability to move, and ensuring the safety of the escort.

[0067] On the contrary, if none of the above situations exists, the control unit controls the baffle 310 to rotate to block the branch pipe 308 provided with the flow limiting component 309, as shown in the attached Figure 5 As shown, air is allowed to flow normally between the main pipe 307 and the branch pipe 308, that is, no large resistance to hinder the movement of the limiting plate 302 is generated. At this time, the suspect's head movement will be smoother and there will be no strong sense of frustration, thereby reducing the suspect's discomfort during the escort process.

[0068] Example 3

[0069] The only difference from the above embodiment is that a temperature sensor 4 and an alarm unit are provided on the limit plate 302; the alarm unit is used to send an alarm prompt to the police officers; and the control unit is also used to control the operation of the alarm unit based on the suspect's body temperature information.

[0070] The specific implementation process is as follows:

[0071] During the escort process, the control unit will obtain the suspect's body temperature through the temperature sensor 4. If the suspect's body temperature is abnormal, it will send a command to the alarm unit. After receiving the command, the alarm unit will send an alarm prompt to the police officer, and the prompt method includes sound, light signal, etc. In this example, the alarm unit is an LED light. When the suspect's body temperature is abnormal, the alarm unit will send a red light prompt.

[0072] Preferably, when the control unit determines that the suspect is in a bad emotional state and has an attempt to break free, it will also control the alarm unit to send a corresponding alarm prompt to the police officer.

[0073] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and / or characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A police vehicle safety control escort seat, characterized by: Including seat cushion; The seat cushion is provided with a backrest; the backrest is provided with a head limiting assembly and a limb limiting assembly; the head limiting assembly includes a head cover, a receiving chamber is provided in the head cover, an extrusion assembly is provided in the receiving chamber, and the extrusion assembly is used to generate a fluid resistance of corresponding magnitude based on the movement of the suspect's head and limit the movement range of the suspect's head; the limb limiting assembly includes a binding mechanism and an energy storage mechanism, the binding mechanism is used to limit the movement range of the suspect's torso and arms, and the energy storage mechanism is used to convert the escaping force generated by the suspect's struggle into internal energy and transmit it to the extrusion assembly until the fluid resistance increases.

2. The police vehicle safety control escort seat according to claim 1 is characterized by: The extrusion assembly includes a plurality of limit plates arranged in the accommodating chamber and a plurality of main pipes arranged in the side walls of the accommodating chamber. The limit plates match the shape of the suspect's head, and the limit plates correspond to the main pipes one by one. A second piston is slidably fitted in the main pipes, and a movable shaft is fixedly connected to the side of the second piston close to the limit plate. The movable shaft is slidably fitted with the main pipe, and one end of the movable shaft close to the limit plate extends into the accommodating chamber and is fixedly connected to the limit plate; the end of the main pipe away from the limit plate is connected to a branch pipe, and a limiting flow assembly is arranged in the branch pipe, and the limiting flow assembly is used to limit the flow of fluid from the branch pipe to the main chamber; the branch pipe is connected to the main chamber, and the main chamber is connected to all branch pipes.

3. The police vehicle safety control escort seat according to claim 1 is characterized by: The flow limiting assembly includes a first channel and at least one second channel; the first channel is used for normal flow of fluid between the main pipeline and the main chamber; The second channel is used to divert the fluid in the first channel and change the diverted flow direction until it is contrary to the flow direction flowing from the main pipeline into the main chamber.

4. The police vehicle safety control escort seat according to claim 3 is characterized by: The binding mechanism includes a plurality of straps; both ends of the straps are fixedly connected with racks; a plurality of slots are arranged on the backrest, and the slots correspond to the racks one by one; a slider is arranged on one side of the slots, a limiting slot is arranged on the slider, a limiting tooth is arranged in the limiting slot, the limiting tooth and the limiting slot are slidably matched, and a spring is arranged between the limiting slot and the limiting tooth.

5. The police vehicle safety control escort seat according to claim 4 is characterized by: The energy storage mechanism includes a plurality of closed chambers arranged in the backrest; the closed chambers correspond to the slots one by one, and a first piston and a conduit are arranged in each of the closed chambers; the first piston is slidably matched with the closed chamber; one end of the slider is embedded in the closed chamber and fixedly connected to the first piston; the slider is slidably matched with the closed chamber and the slots respectively; the conduit connects each closed chamber with the main chamber.

6. The police vehicle safety control escort seat according to claim 5, characterized in that: The main pipeline is connected to at least two branch pipelines; only one of the branch pipelines is provided with a first channel and at least one second channel; a baffle and a servo motor are provided at the intersection of the branch pipeline and the main pipeline, the baffle is rotatably connected to the head cover, and the servo motor is used to drive the baffle to rotate; a tension sensor is provided in each restraint belt, and the tension sensor is electrically connected to a control unit; It also includes an audio collection unit; the audio collection unit is used to obtain surrounding voice features; the control unit is used to judge the suspect's emotional state based on the tension information and voice features of the tension sensor, and control the operation of the servo motor.

7. The police vehicle safety control escort seat according to claim 6, characterized in that: Handcuffs are arranged at the bottom of the backrest; and leg cuffs are arranged at the bottom of the seat.

8. The police vehicle safety control escort seat according to claim 7, characterized in that: A lifting slot is arranged on the backrest, and a lifting rod, a gear and a stepping motor are arranged in the lifting slot; a plurality of gear teeth are arranged on one side of the lifting rod, the gear is meshed with the lifting rod, and the stepping motor is used to drive the gear to rotate; a protrusion is arranged on one side of the head cover, and the protrusion is fixedly connected to the lifting rod.

9. The police vehicle safety control escort seat according to claim 8, characterized in that: A groove is arranged in the accommodating cavity at a side away from the backrest.

10. The police vehicle safety control escort seat according to claim 9, characterized in that: The limit plate is provided with a temperature sensor and an alarm unit; the alarm unit is used to send an alarm prompt to the police officers; the control unit is also used to control the operation of the alarm unit based on the suspect's body temperature information.

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