Self-locking anti-riot prongs

Abstract

The utility model belongs to the security appliance field, concretely relates to a self -locking type riot steel fork, including the extension bar, the upper end of extension bar is hinged with two opposite arc claws, the inside of extension bar is slidably connected with telescopic link, the upper end of telescopic link is fixedly connected with arc abutment, the left and right sides of arc abutment are hinged with swing arm, two swing arms are hinged with two arc claws respectively, the middle part of extension bar is fixedly connected with the limit platform, the side wall of limit platform is equipped with the mounting hole, the port of mounting hole is fixedly connected with the block, the side wall of extension bar is slidably connected with the dog along the radial direction, one end of dog is equipped with the wedge head, the other end of dog penetrates the block and is fixedly connected with the handle, the middle part of dog is fixedly connected with the locating platform, the outside of dog is equipped with the first spring between locating platform and block, a plurality of card slots corresponding with wedge head are equipped on telescopic link. The utility model can improve the capture effect to dangerous personnel, and can prevent the effective prevention of defense overdoing.

Description

Technical Field

[0001] This utility model relates to a self-locking anti-riot steel fork, belonging to the field of security equipment. Background Technology

[0002] As people's safety awareness increases, security personnel in public places are usually equipped with riot control weapons. To prevent excessive self-defense, non-lethal weapons are favored by security personnel, and riot control forks are one such example. Riot control forks are mainly used to apprehend dangerous individuals such as armed criminals, intoxicated persons, and those suffering from infectious diseases or mental illnesses. However, existing riot control forks still have some drawbacks in controlling and apprehending dangerous individuals. The curved claws of existing riot control forks are mostly fixed, requiring security personnel to exert continuous force to pin the dangerous person against the ground or wall to control them. Once the force is released, the dangerous person can easily break free from the curved claws and escape. Therefore, they can only serve a limited defensive purpose and are not very effective at apprehending dangerous individuals.

[0003] To address this, Chinese utility model patent CN213873982U discloses a stainless steel fork with a self-locking device. When apprehending a dangerous individual, the first rack moves downwards upon contact with the individual's body, causing the curved claws on both sides to close, trapping the individual's limbs between the claws. Simultaneously, under the action of a first spring, the pawl automatically engages with the second rack, preventing the curved claws from opening again. While this prior art effectively prevents escape, the thin end of the first rack can easily injure the individual upon contact with vulnerable areas, potentially leading to excessive self-defense and thus poor effectiveness. Utility Model Content

[0004] Based on the shortcomings of the existing technology, the technical problem to be solved by this utility model is to provide a self-locking anti-riot steel fork that has a better effect on capturing dangerous personnel and can effectively avoid excessive self-defense.

[0005] The self-locking anti-riot steel fork of this utility model includes an extension rod, with two opposing arc-shaped claws hinged to the upper end of the extension rod. A telescopic rod is slidably connected to the inner side of the extension rod. The upper end of the telescopic rod extends out of the extension rod and is fixedly connected to an arc-shaped stop plate. A swing arm is hinged to both sides of the arc-shaped stop plate, and the two swing arms are respectively hinged to the two arc-shaped claws. A limiting platform is fixedly connected to the outer side of the middle part of the extension rod. An installation hole is opened on the side wall of the limiting platform, and a plug is fixedly connected to the port of the installation hole. A pawl is slidably connected to the side wall of the extension rod radially. A wedge-shaped head is provided at one end of the pawl located on the inner side of the extension rod, and a handle is fixedly connected to the other end of the pawl located on the outer side of the extension rod through the plug. A positioning platform located in the installation hole is fixedly connected to the middle part of the pawl. A first spring is sleeved on the outer side of the pawl between the positioning platform and the plug. Several slots corresponding to and adapted to the wedge-shaped head are provided on the telescopic rod.

[0006] Furthermore, a rubber pad is fixedly connected to the top of the arc-shaped abutment.

[0007] Furthermore, a handle is fixedly connected to the extension rod corresponding to the limiting platform.

[0008] Furthermore, the sealing block and the limiting platform are fixedly connected by bolts.

[0009] Furthermore, a handle is fixedly connected to the lower end of the extension rod.

[0010] Furthermore, the top of the handle is fixedly connected to a guide shaft located inside the extension rod, the bottom of the telescopic rod is provided with a guide hole that corresponds to and matches the guide shaft, and a second spring is sleeved on the outside of the guide shaft. The second spring is disposed between the telescopic rod and the handle.

[0011] Working principle and process: Initially, the telescopic rod is in the high position with the two arc-shaped claws open. During use, the security personnel hold the handle with one hand and the grip with the other, pressing the arc-shaped stop against the person at risk. As the security personnel apply sustained force, the person's body presses against the arc-shaped stop, causing the telescopic rod to retract inwards. The telescopic rod moves downwards, and with the engagement of the slot and the wedge-shaped locking head, the telescopic rod pushes the claws to compress the first spring and move to the right, thus not hindering the retraction of the telescopic rod. Simultaneously, the retraction of the telescopic rod also causes the two arc-shaped claws to rotate relative to each other through the two swing arms, thereby engaging the two arc-shaped claws. The telescopic rod closes to apprehend dangerous individuals. After the arc-shaped claws close, the wedge-shaped locking head re-locks into the slot under the reset action of the first spring. With the wedge-shaped locking head and the slot in planar cooperation, the telescopic rod will not move upward, thus effectively preventing dangerous individuals from escaping. After the danger is eliminated, pulling the handle to the right compresses the first spring and moves the claws to the right, causing the wedge-shaped locking head to disengage from the slot. At this time, under the reset action of the second spring, the telescopic rod moves upward, which in turn drives the two arc-shaped claws to move in opposite directions through the arc-shaped stop plate and the swing arm, causing the two arc-shaped claws to open and release the dangerous individuals.

[0012] The advantages of this utility model compared with the prior art are: The self-locking anti-riot steel fork of this utility model can self-lock after capturing dangerous personnel, thereby preventing dangerous personnel from escaping and improving the capture effect of dangerous personnel; The self-locking anti-riot steel fork of this utility model is equipped with an arc-shaped stop plate, which can make more precise contact with the body parts of dangerous personnel, thereby preventing accidental injury to dangerous personnel and thus avoiding excessive self-defense. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 yes Figure 1 Enlarged view of point A in the middle; Figure 3 yes Figure 1 Enlarged view of point B in the middle; Figure 4 This is a cross-sectional view of the present invention; Figure 5 yes Figure 4 Enlarged view of point C in the middle; Figure 6 yes Figure 4 Enlarged view of point D in the middle; Figure 7 yes Figure 4 Enlarged view of point E in the middle.

[0014] In the diagram: 1. Extension rod; 2. Handle; 3. Grip; 4. Arc-shaped claw; 5. Telescopic rod; 6. Arc-shaped stop plate; 7. Swing arm; 8. Rubber pad; 9. Limiting platform; 10. Block; 11. Claw; 12. Handle; 13. First spring; 14. Mounting hole; 15. Positioning platform; 16. Wedge-shaped chuck; 17. Slot; 18. Guide hole; 19. Guide shaft; 20. Second spring. Detailed Implementation

[0015] The embodiments of this utility model will be further described below with reference to the accompanying drawings: Example 1: like Figures 1 to 7 As shown, the self-locking anti-riot steel fork of this utility model includes an extension rod 1. Two opposing arc-shaped claws 4 are hinged to the upper end of the extension rod 1. A telescopic rod 5 is slidably connected to the inner side of the extension rod 1. The upper end of the telescopic rod 5 extends out of the extension rod 1 and is fixedly connected to an arc-shaped stop plate 6. Swing arms 7 are hinged to both sides of the arc-shaped stop plate 6, and the two swing arms 7 are respectively hinged to the two arc-shaped claws 4. A limiting platform 9 is fixedly connected to the outer side of the middle part of the extension rod 1. An installation hole 14 is provided on the side wall of the limiting platform 9, and a fixed... The extension rod 1 is connected to a sealing plug 10. A claw 11 is slidably connected radially on the side wall of the extension rod 1. The end of the claw 11 located inside the extension rod 1 is provided with a wedge-shaped locking head 16. The end of the claw 11 located outside the extension rod 1 passes through the sealing plug 10 and is fixedly connected to a handle 12. The middle part of the claw 11 is fixedly connected to a positioning platform 15 located in the mounting hole 14. A first spring 13 located between the positioning platform 15 and the sealing plug 10 is sleeved on the outside of the claw 11. The telescopic rod 5 is provided with several slots 17 that correspond to and are adapted to the wedge-shaped locking head 16.

[0016] Initially, the telescopic rod 5 is in the high position, with the two arc-shaped claws 4 in the open state. During use, the security personnel extend the rod 1 and press the arc-shaped abutment 6 against the person in danger. As the security personnel apply continuous force, the person's body parts press against the arc-shaped abutment 6, causing the telescopic rod 5 to retract inwards towards the extension rod 1. The telescopic rod 5 moves downwards, and with the inclined surfaces of the slot 17 and the wedge-shaped locking head 16 engaging, the telescopic rod 5 pushes the claws 11 to compress the first spring 13 and move it to the right, thus not hindering the retraction of the telescopic rod 5. Simultaneously, the retraction of the telescopic rod 5 also causes the two arc-shaped claws 4 to rotate relative to each other via the two swing arms 7, thereby causing the two... The arc-shaped claws 4 close, completing the capture of the dangerous person. After the arc-shaped claws 4 close, under the reset action of the first spring 13, the wedge-shaped clamp 16 will re-clamp into the groove 17. With the planar cooperation between the wedge-shaped clamp 16 and the groove 17, the telescopic rod 5 will not move upward, thus effectively preventing the dangerous person from escaping. After the danger is eliminated, by pulling the handle 12 to the right, the claws 11 are driven to compress the first spring 13 and move to the right, thereby causing the wedge-shaped clamp 16 to disengage from the groove 17. At this time, by prying the two arc-shaped claws 4 outward, the two arc-shaped claws 4 can be opened, thereby separating the arc-shaped claws 4 from the dangerous person.

[0017] Example 2: like Figures 1 to 7 As shown, based on Example 1, Furthermore, a rubber pad 8 is fixedly connected to the top of the arc-shaped abutment plate 6, and the rubber pad 8 serves as a buffer and protection.

[0018] Furthermore, a handle 3 is fixedly connected to the extension rod 1 corresponding to the limiting platform 9. The handle 3 can increase the friction between the security personnel's hands and the extension rod 1, thereby improving the gripping effect of the extension rod 1.

[0019] Furthermore, the plug 10 is fixedly connected to the limiting platform 9 by bolts. The plug 10 can be removed from the limiting platform 9 by unscrewing the bolts, thereby facilitating the replacement and maintenance of internal parts.

[0020] Furthermore, the lower end of the extension rod 1 is fixedly connected to a handle 2, which facilitates gripping by security personnel and hooking and storing of this utility model.

[0021] Furthermore, the top of the handle 2 is fixedly connected to a guide shaft 19 located inside the extension rod 1, and the bottom of the telescopic rod 5 is provided with a guide hole 18 that corresponds to and matches the guide shaft 19. A second spring 20 is sleeved on the outside of the guide shaft 19. The second spring 20 is disposed between the telescopic rod 5 and the handle 2. When the two arc-shaped claws 4 close, the telescopic rod 5 moves downward to compress the second spring 20. After the wedge-shaped chuck 16 disengages from the slot 17, the telescopic rod 5 can automatically reset under the rebound action of the second spring 20, thereby allowing the two arc-shaped claws 4 to open automatically.

[0022] It should be noted that in the description of this utility model, the terms "left", "right", "up", "down", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not require that this utility model must be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

Claims

1. A self-locking anti-riot steel fork, characterized in that: The system includes an extension rod (1), with two opposing arc-shaped claws (4) hinged to the upper end of the extension rod (1). A telescopic rod (5) is slidably connected to the inner side of the extension rod (1). The upper end of the telescopic rod (5) extends out of the extension rod (1) and is fixedly connected to an arc-shaped abutment (6). A swing arm (7) is hinged to both sides of the arc-shaped abutment (6). The two swing arms (7) are respectively hinged to the two arc-shaped claws (4). A limiting platform (9) is fixedly connected to the outer side of the middle part of the extension rod (1). An installation hole (14) is opened on the side wall of the limiting platform (9). A plug (10) is fixedly connected to the port of the installation hole (14). (1) A claw (11) is slidably connected radially on the side wall. The claw (11) has a wedge-shaped head (16) at one end inside the extension rod (1). The claw (11) passes through the seal (10) and is fixedly connected to a handle (12) at one end outside the extension rod (1). The middle part of the claw (11) is fixedly connected to a positioning platform (15) located in the mounting hole (14). The outer side of the claw (11) is fitted with a first spring (13) located between the positioning platform (15) and the seal (10). The telescopic rod (5) has several slots (17) that correspond to and are adapted to the wedge-shaped head (16).

2. The self-locking anti-riot steel fork according to claim 1, characterized in that: A rubber pad (8) is fixedly connected to the top of the arc-shaped abutment plate (6).

3. The self-locking anti-riot steel fork according to claim 1, characterized in that: The extension rod (1) is fixedly connected to the corresponding limiting platform (9) with a handle (3).

4. The self-locking anti-riot steel fork according to claim 1, characterized in that: The sealing (10) and the limiting platform (9) are fixedly connected by bolts.

5. The self-locking anti-riot steel fork according to any one of claims 1 to 4, characterized in that: The lower end of the extension rod (1) is fixedly connected to a handle (2).

6. The self-locking anti-riot steel fork according to claim 5, characterized in that: The top of the handle (2) is fixedly connected to a guide shaft (19) located inside the extension rod (1). The bottom of the telescopic rod (5) is provided with a guide hole (18) that corresponds to and matches the guide shaft (19). A second spring (20) is sleeved on the outside of the guide shaft (19). The second spring (20) is located between the telescopic rod (5) and the handle (2).

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