Folding police restraint fork
By designing a foldable police restraint fork, the high-voltage electrostatic field technology is used to temporarily stop the resistance of criminals, and the problem of restraint forks in the existing technology is easily loosened during the struggle of thugs, achieving effective suppression of criminals and safety protection of law enforcement personnel.
Patent Information
- Application Number
- CN202421552483.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-03
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-07-03
AI Technical Summary
Existing arrest equipment is difficult to effectively carry out arrest when dealing with criminals who resisted violence against the law, and the restraint forks are easily loosened during the struggle of the thugs, resulting in the escape of the suspect or the injury of law enforcement personnel.
A folding police restraint fork was designed to form a high-voltage electrostatic field by extruding components such as springs, contraction tubes, fork seats, vertical plates, screws, threaded sleeves, clamp forks, etc., and a weak high-voltage pulse discharge is generated through the induction shock, temporarily stopping the criminals' resistance.
This restraining fork can effectively stop the resistance of criminals, improve the suppression effect of criminals, protect the personal safety of law enforcement personnel, and avoid the risk of criminal suspects escaping and law enforcement personnel being injured.
Smart Images

Figure CN222993585U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of restraint forks, and particularly relates to a folding police restraint fork. Background Art
[0002] During the law enforcement and anti-terrorism handling of law enforcement officers, they often encounter criminals who resist arrest by violence with knives or weapons. The existing arresters can only hold the arms, legs or necks of criminals to prevent them from approaching the people they attempt to attack, but cannot implement arrests.
[0003] When arresting personnel stop violent incidents, it is still difficult to avoid direct contact with criminal suspects when using the existing arrest equipment, and it is also restricted by the surrounding environment during use, often resulting in the escape of criminal suspects or even injuries to arresting personnel. The restraint fork is a security device used to restrain the behavior of rioters. Generally, the restraint fork cannot lock itself when dealing with rioters and is prone to loosen during the struggle of the rioters.
[0004] Therefore, it is necessary to invent a folding police restraint fork to solve the above problems. Content of the Utility Model
[0005] The purpose of the utility model is to provide a folding police restraint fork that can effectively solve the above technical problems.
[0006] To achieve the above purpose, the utility model provides the following technical solutions: A folding police restraint fork includes a sleeve. A compression spring is bolted to the bottom of the inner cavity of the sleeve. A contraction tube is bolted to the top of the compression spring. A fork base is bolted to the top of the contraction tube. Vertical plates are bolted to both sides of the bottom of the inner cavity of the fork base. A lead screw is rotatably connected to the outside of the vertical plate through a bearing. A threaded sleeve is threadedly connected to the surface of the lead screw. A clamping fork is bolted to the top of the threaded sleeve. An induction electric shock device is bolted to the inner side of the clamping fork. A power supply board is bolted to the center of the inner cavity of the clamping fork. A battery supply is bolted to the lower part of the outside of the clamping fork. A power supply wire is connected between the battery supply and the power supply board. The inner side of the lead screw passes through the vertical plate and is bolted with a worm gear. Worm gears are rotatably connected to both sides of the front of the inner cavity of the fork base through bearings, and the surface of the worm gear meshes with the surface of the worm gear. A protective shell is bolted to the front of the fork base. A driven wheel is bolted to the upper part of the worm gear.
[0007] Preferably, a toothed rod is slidably connected to the inner side of the protective shell, and the surface of the toothed rod meshes with the surface of the driven wheel. An arc-shaped top plate is bolted to the top of the toothed rod. When the toothed rod horizontally moves in the protective shell, it will synchronously drive the driven wheels on both sides to rotate. The top of the arc-shaped top plate contacts the body of the criminal, and the toothed rod is pushed to slide in the protective shell through the extrusion force.
[0008] Preferably, an insulating sleeve is slidably sleeved on the surface of the clamping fork. Through the protection of the insulating sleeve, it can effectively prevent the clamping fork from accidentally injuring the user when it is not in use.
[0009] Preferably, a limiting plate is bolted to the bottom of the toothed rod to prevent the toothed rod from sliding out of the inner cavity of the protective shell.
[0010] Preferably, an elastic pin is bolted to the right side of the shrink tube. An insertion slot is formed in the upper part of the right side of the sleeve, and the inner side of the insertion slot is slidably clamped with the surface of the elastic pin. Due to the elasticity of the elastic pin itself, when the shrink tube slides to the insertion slot in the sleeve, the elastic pin pops outwards and is clamped in the insertion slot, fixing the extension part of the shrink tube at a certain position in the sleeve.
[0011] Preferably, anti-slip grips are bolted to both the upper and lower sides of the surface of the sleeve. The anti-slip grips are mainly made of rubber, which can reduce the possibility of the sleeve slipping out of the hand during use.
[0012] Preferably, sliding rods are bolted to both sides of the inner cavity of the fork base, and the surface of the sliding rods is slidably connected to the inner side of the threaded sleeve to limit the moving path of the threaded sleeve through the sliding rods.
[0013] In the above technical solution, the technical effects and advantages provided by the present utility model are as follows:
[0014] 1. Through components such as a compression spring, a shrink tube, a fork base, a vertical plate, a lead screw, a threaded sleeve, and a clamping fork, the electric energy at the induction electric shock device breaks down the air between the discharge electrodes to form a continuous high-voltage pulsed discharge arc. The high-voltage discharge arc can form a high-voltage electrostatic field within a certain range and act on the human body, causing the human body to be temporarily electrically shocked and shocked, but since the current flowing through the human body is extremely weak, it will not cause fatal harm to the human body, but it is sufficient to make the criminal temporarily lose the ability to resist, effectively stop criminal acts, quickly make the criminal lose the ability to continue moving, improve the suppression effect of the restraint fork on the criminal, and thus effectively protect the personal safety of law enforcement officers. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.
[0016] Figure 1 It is the front view of the overall structure of the present utility model;
[0017] Figure 2 It is the storage display diagram of the sleeve and the shrink tube of the present utility model;
[0018] Figure 3 Side view of the internal connection structure between the fork base and the protective sleeve of the present utility model;
[0019] Figure 4 Of the present utility model Figure 1 Enlarged view of the structure at position A;
[0020] Figure 5 Of the present utility model Figure 1 Enlarged view of the structure at position B;
[0021] Figure 6 Of the present utility model Figure 2 Enlarged view of the structure at position C.
[0022] Explanation of reference numerals:
[0023] 1, sleeve; 2, extrusion spring; 3, shrinkable tube; 4, fork base; 5, vertical plate; 6, lead screw; 7, threaded sleeve; 8, clamping fork; 9, induction electric shock device; 10, power supply board; 11, power supply battery; 12, power supply battery; 13, worm gear; 14, worm; 15, protective shell; 16, driven wheel; 17, toothed rod; 18, arc-shaped top plate; 19, insulating sleeve; 20, limiting plate; 21, elastic pin; 22, pin groove; 23, anti-slip grip; 24, sliding rod. Specific embodiments
[0024] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0025] The present utility model provides a folding police restraint fork as shown in Figures 1-6 , which includes a sleeve 1. A compression spring 2 is bolted to the bottom of the inner cavity of the sleeve 1. The top of the compression spring 2 is bolted to a shrinkable tube 3. The top of the shrinkable tube 3 is bolted to a fork base 4. Vertical plates 5 are bolted to both sides of the bottom of the inner cavity of the fork base 4. Lead screws 6 are rotatably connected to the outer sides of the vertical plates 5 through bearings. Threaded sleeves 7 are threadedly connected to the surfaces of the lead screws 6. Clamping forks 8 are bolted to the tops of the threaded sleeves 7. Induction electric shock devices 9 are bolted to the inner sides of the clamping forks 8. A power supply board 10 is bolted to the center of the inner cavity of the clamping forks 8. A power supply battery 11 is bolted to the lower part of the outer side of the clamping forks 8. A power supply wire 12 is connected between the power supply battery 11 and the power supply board 10. The inner sides of the lead screws 6 pass through the vertical plates 5 and are bolted to worm gears 13. Worms 14 are rotatably connected to both sides of the front of the inner cavity of the fork base 4 through bearings, and the surfaces of the worms 14 are meshed with the surfaces of the worm gears 13. A protective shell 15 is bolted to the front of the fork base 4. Driven wheels 16 are bolted to the upper parts of the worms 14.
[0026] A rack bar 17 is slidably connected to the inner side of the inner cavity of the protective shell 15, and the surface of the rack bar 17 meshes with the surface of the driven wheel 16. An arc-shaped top plate 18 is bolted to the top of the rack bar 17. When the rack bar 17 moves horizontally in the protective shell 15, it will synchronously drive the driven wheels 16 on both sides to rotate. The top of the arc-shaped top plate 18 contacts the body of the criminal, and the rack bar 17 is pushed to slide in the protective shell 15 through the extrusion force.
[0027] An insulating sleeve 19 is slidably sleeved on the surface of the clamping fork 8. Through the protection of the insulating sleeve 19, it can effectively prevent the clamping fork 8 from accidentally injuring the user when it is in a non-use state.
[0028] A limit plate 20 is bolted to the bottom of the rack bar 17 to prevent the rack bar 17 from sliding out of the inner cavity of the protective shell 15.
[0029] An elastic pin 21 is bolted to the right side of the shrinkage tube 3. A pin slot 22 is opened in the upper part of the right side of the sleeve 1, and the inner side of the pin slot 22 is slidably clamped with the surface of the elastic pin 21. Through the elastic force of the elastic pin 21 itself, when the shrinkage tube 3 slides to the pin slot 22 in the sleeve 1, the elastic pin 21 pops outwards and is stuck in the pin slot 22, so that the extension part of the shrinkage tube 3 is fixed at a place in the sleeve 1.
[0030] Anti-slip grips 23 are bolted to both the upper and lower sides of the surface of the sleeve 1. The anti-slip grips 23 are mainly made of rubber, which can reduce the possibility of the sleeve 1 slipping out of the hand during use.
[0031] Slide bars 24 are bolted to both sides of the inner cavity of the fork seat 4, and the surface of the slide bars 24 is slidably connected to the inner side of the threaded sleeve 7. The movement path of the threaded sleeve 7 is limited by the slide bars 24.
[0032] Refer to the attached instructions Figures 1-6, Working principle: During the use of the device, by squeezing components such as spring 2, shrinkable tube 3, fork seat 4, vertical plate 5, lead screw 6, threaded sleeve 7, and clamping fork 8, first, the insulating sleeve 19 is pushed out from the clamping fork 8, the shrinkable tube 3 and the sleeve 1 are pulled, so that the shrinkable tube 3 extends from the sleeve 1. Subsequently, the arc-shaped top plate 18 is aligned with the criminal to be subdued, and the restraint fork body is pushed through the sleeve 1, so that the arc-shaped top plate 18 contacts the criminal. Through the squeezing method, the arc-shaped top plate 18 pushes the toothed rod 17 to move backward by the thrust. When the toothed rod 17 moves, it synchronously drives the driven wheels 16 on both sides to rotate. During the rotation of the driven wheels 16, the worm wheel 13 is driven to rotate through the worm 14. During the rotation of the worm wheel 13, the threaded sleeve 7 on its surface is driven to move horizontally through the lead screw 6, so that the clamping forks 8 move inward towards each other until the inner sides of the clamping forks 8 contact the criminal. When the surface of the induction electric shocker 9 contacts the criminal's body and is pressed, the battery 11 will transmit the electric power for single electric shock to the induction electric shocker 9 through the power supply wire 12 and the power supply board 10. The electric energy at the induction electric shocker 9 breaks down the air between the discharge electrodes to form a continuous high-voltage pulsed discharge arc. The high-voltage discharge arc can form a high-voltage electrostatic field within a certain range and act on the human body, causing the human body to be temporarily electrically shocked and shocked, but since the current flowing through the human body is extremely weak, it will not cause fatal harm to the human body, but it is sufficient to make the criminal temporarily lose the ability to resist, effectively stop criminal acts, quickly make the criminal lose the ability to continue acting, improve the suppression effect of the restraint fork on the criminal, and thus effectively protect the personal safety of law enforcement officers.
[0033] Only some exemplary embodiments of the present invention have been described by way of illustration. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A foldable police restraint fork, comprising a sleeve (1), characterized in that: The bottom of the inner cavity of the sleeve (1) is bolted with an extrusion spring (2), the top of the extrusion spring (2) is bolted with a shrink tube (3), the top of the shrink tube (3) is bolted with a fork seat (4), both sides of the bottom of the inner cavity of the fork seat (4) are bolted with vertical plates (5), the outer sides of the vertical plates (5) are rotatably connected to a screw rod (6) through a bearing, the surface of the screw rod (6) is threadedly connected with a threaded sleeve (7), the top of the threaded sleeve (7) is bolted with a clamping fork (8), the inner side of the clamping fork (8) is bolted with an induction electric shock device (9), and the inner cavity of the clamping fork (8) is A power supply board (10) is bolted at the center, a power supply battery (11) is bolted at the lower part of the outer side of the clamping fork (8), a power supply line (12) is connected between the power supply battery (11) and the power supply board (10), the inner side of the screw rod (6) passes through the vertical plate (5) and is bolted to a worm wheel (13), both sides of the front side of the inner cavity of the fork seat (4) are rotatably connected to a worm (14) through bearings, and the surface of the worm (14) is meshed with the surface of the worm wheel (13), the front side of the fork seat (4) is bolted to a protective shell (15), and the upper part of the worm (14) is bolted to a driven wheel (16).
2. A foldable police restraint fork according to claim 1, characterized in that: A gear rod (17) is slidably connected to the inner side of the inner cavity of the protective shell (15), and the surface of the gear rod (17) is meshed with the surface of the driven wheel (16). The top of the gear rod (17) is bolted with an arc-shaped top plate (18).
3. The foldable police restraint fork according to claim 1, characterized in that: An insulating sleeve (19) is slidably sleeved on the surface of the clamping fork (8).
4. The foldable police restraint fork according to claim 2, characterized in that: The bottom of the gear rod (17) is bolted to a limiting plate (20).
5. The foldable police restraint fork according to claim 1, characterized in that: The right side of the shrink tube (3) is bolted with an elastic pin (21), the upper part of the right side of the sleeve (1) is provided with a pin groove (22), and the inner side of the pin groove (22) is slidably engaged with the surface of the elastic pin (21).
6. The foldable police restraint fork according to claim 1, characterized in that: Anti-slip handles (23) are bolted to the upper and lower sides of the surface of the sleeve (1).
7. The foldable police restraint fork according to claim 1, characterized in that: Sliding rods (24) are bolted to both sides of the inner cavity of the fork seat (4), and the surface of the sliding rod (24) is slidably connected to the inner side of the threaded sleeve (7).