A riot-proof catcher

Abstract

The invention discloses an anti-riot arrester, wherein a fixed fork arm is provided with a knife-locking and closing lock pin, the knife-locking and closing lock pin is connected with a trigger device and is controlled to extend and retract by the trigger device, a toothed disc is provided at one end of the movable knife-locking and fixed fork arm and is pivotally connected to the fixed fork arm through the toothed disc, a tension spring winding wheel is provided on the toothed disc, a tension spring is wound and connected on the tension spring winding wheel, one end of the tension spring is connected to the tension spring winding wheel, and the other end of the tension spring is fixedly connected to the fixed fork arm, the tooth groove of the toothed disc directly corresponds to and cooperates with the knife-locking and closing lock pin or the intermediate gear is meshed with the intermediate gear and the knife-locking and closing lock pin corresponds to and cooperates with the knife-locking and closing lock pin; the locking pin and the tension spring are used to control the opening and closing of the knife-locking and enable the knife-locking to lock the arrested criminal in a manner of embracing and locking, and the knife can be used to lock important parts of the human body such as waist, body, shoulder, hand, foot, etc., so that the criminal is not easy to escape after being forked, and the use is simple, convenient and safe, and can meet the use needs in complex environments in anti-riot actions.

Description

Technical Field

[0001] The invention belongs to the technical field of anti-riot arresting devices, and in particular relates to an arresting device for arresting lawbreakers in a clasping and locking manner. Background Art

[0002] The existing anti-riot arrester is generally composed of a semicircular fork and a gripping rod. It can only be placed on the waist, so criminals can easily escape after being forked. In addition, when criminals hold knives or sticks, it is not convenient to use the anti-riot arrester to resist the knives or sticks, and the personal safety of police officers cannot be guaranteed. The existing anti-riot arrester is relatively simple in function and cannot cope with the complex use environment in anti-riot operations, and needs further improvement. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention aims to provide a simple, convenient and safe anti-riot arrester which utilizes a locking pin and a tension spring to control the opening and closing of a locking knife and enables the locking knife to lock important human body parts such as the waist, body, shoulders, hands and feet in a locking manner, making it difficult for criminals to escape after being forked.

[0004] To achieve the above object, the present invention adopts the following technical solution:

[0005] The cam is mounted on the rear end of the rod seat, and the cam is mounted on the side of the rod seat, and the cam is mounted on the front end of the rod seat. The cam is mounted on the front end of the rod seat, and the cam is mounted on the front end of the rod seat. The cam is mounted on the front end of the rod seat, and the cam is mounted on the fixed fork arm, and the cam is connected to the trigger device and is controlled to extend and retract by the trigger device. A toothed disc is provided at one end of the movable knife that is mounted and connected to the fixed fork arm, and the toothed disc is provided with a tension spring winding wheel, and a tension spring is wound around the tension spring winding wheel, one end of the tension spring is connected to the tension spring winding wheel, and the other end of the tension spring is fixedly connected to the fixed fork arm. The tooth groove of the toothed disc directly corresponds to the opening and closing lock pin of the knife, or after being meshed with the intermediate gear, the intermediate gear corresponds to the opening and closing lock pin of the knife.

[0006] When the movable locking knife is opened, the locking knife opening and closing lock pin is positioned in the tooth groove of the toothed disc of the movable locking knife or the tooth groove of the intermediate gear. When arresting a criminal, the fork is pointed at the criminal, and the human body touches the trigger device. The trigger device is squeezed and then the locking knife opening and closing lock pin is pulled to contract, and the positioning of the toothed disc of the movable locking knife is released. Then, under the tension of the tension spring, the toothed disc rotates and drives the movable locking knife to flip to lock the forked part of the criminal in a hugging manner. The operation is simple and convenient, and it is not easy for the criminal to escape after being forked.

[0007] As a further improvement of the present invention, a cable connecting wheel is provided on the toothed disc, a cable installation groove is provided on the fixed fork arm, a cable is installed in the cable installation groove, the holding rod includes a fixed rod, a telescopic rod and a connecting sleeve, one end of the fixed rod is fixedly connected to the rear end of the rod seat, the other end of the fixed rod is connected to the telescopic rod through the connecting sleeve, a first tube body that can slide up and down is provided on the telescopic rod, one end of the cable is fixedly connected to the cable connecting wheel, the other end of the cable passes through the rod seat and the fixed rod and is fixedly connected to the first tube body, after the movable locking knife is flipped and locked in a clamping form, pulling the first tube body can pull the cable connecting wheel through the cable to drive the toothed disc and the movable locking knife to flip, reset and reopen, which is convenient for the opening of the movable locking knife after being locked.

[0008] As a further improvement of the present invention, a self-locking compression spring lock pin is installed on the fixed fork arm, and the self-locking compression spring lock pin is linked with the locking knife opening and closing lock pin and extends out when the locking knife opening and closing lock pin is retracted; the locking knife opening and closing lock pin has the same structure as the self-locking compression spring lock pin, including a central locking rod, a locking head, a mounting gasket and a spring, the locking head is arranged at the front end of the central locking rod, the mounting gasket is installed on the fixed fork arm and located at the rear end of the central locking rod, the rear end of the central locking rod passes through the mounting gasket, the spring is sleeved on the central locking rod and is located between the locking head and the mounting gasket, and a locking rod connecting piece is installed on the fixed fork arm at the rear end of the locking knife opening and closing lock pin and the self-locking compression spring lock pin, the rear ends of the central locking rods of the locking knife opening and closing lock pin and the self-locking compression spring lock pin are respectively connected to the two ends of the locking rod connecting piece, the locking rod connecting piece can rotate around its middle, and the end of the locking rod connecting piece connected to the central locking rod of the locking knife opening and closing lock pin is connected to a locking pin cable, and the locking pin cable extends through the rod seat and is connected to the trigger device. When arresting a criminal, the fork is pointed at the criminal, and the human body touches the trigger device. After the trigger device is squeezed, the lock pin of the lock knife is pulled by the lock pin cable to shrink, and the positioning of the toothed disc of the movable lock knife is released. Then, under the tension of the tension spring, the toothed disc rotates and drives the movable lock knife to flip to lock the forked part of the criminal in the form of a hug. At the same time, the lock pin of the self-locking compression spring is pushed out and positioned in the toothed disc of the movable lock knife or the tooth groove of the intermediate gear to re-self-lock the movable lock knife, further ensuring that the criminal is not easy to escape after being forked.

[0009] The locking rod connecting piece can be a clip, one of the clamping arms of the locking rod connecting piece is fixedly connected to the fixed fork arm, and the rear ends of the central locking rod of the locking knife opening and closing lock pin and the self-locking compression spring lock pin are respectively connected to the two ends of the other clamping arm of the locking rod connecting piece, so that the self-locking compression spring lock pin can be pushed out while the locking knife opening and closing lock pin is contracted.

[0010] As a further improvement of the present invention, the trigger device includes a trigger block, a block mounting rod and a block telescopic spring. The trigger block is mounted on the rod seat and plugged into the holding rod through the block mounting rod. The block telescopic spring is sleeved on the block mounting rod and is located at the rear end of the trigger block. The block telescopic spring is installed and connected to the holding rod. The locking pin cable is connected to the trigger block. After the trigger block is squeezed, the block telescopic spring is compressed and the locking pin cable is pulled to thereby pull the locking knife opening and closing lock pin to retract. When the trigger block is not squeezed and contacted by the human body, the trigger block is reset under the elastic force of the block telescopic spring and the locking knife opening and closing lock pin is reset at the same time.

[0011] Preferably, a tension spring mounting groove is provided on the fixed fork arm, the tension spring is installed in the tension spring mounting groove, a tension spring winding groove is provided on the peripheral wall of the tension spring winding wheel, one end of the tension spring extends and is wound around the tension spring winding groove and is fixedly connected to the tension spring winding wheel, the fixed fork arm is composed of a first fork arm block and a second fork arm block assembled and connected, the toothed disc of the movable locking knife is installed between the front ends of the first fork arm block and the second fork arm block, a movable groove for the movable locking knife to rotate is formed between the front ends of the first fork arm block and the second fork arm block, a first locking pin groove and a second locking pin groove are provided on the fixed fork arm, the locking knife opening and closing lock pin is installed in the first locking pin groove, and the self-locking compression spring lock pin is installed in the second locking pin groove.

[0012] As a further improvement of the present invention, a window-breaking tip is provided on the outer edge of the end of the fixed fork arm, and / or a protective shield is installed at the front end of the fixed rod of the gripping rod, and the window-breaking tip can be used to break the window to arrest criminals, and the protective shield can be used to enhance the personal safety of police officers. Clothes hooking grooves are provided at the outer edge of the movable locking knife, and the clothes of criminals can be hooked through the clothing hooking grooves. Anti-cutting grooves are provided on the inner arm edge of the fixed fork arm and / or the inner edge of the movable locking knife. When a knife-wielding criminal attacks, the anti-cutting grooves can be used to block and catch the knife of the criminal, further enhancing the personal safety of police officers.

[0013] The present invention has the following beneficial effects:

[0014] The present invention discloses an anti-riot arrester, which uses a locking pin and a tension spring to control the opening and closing of a locking knife, and enables the locking knife to lock the arrested criminal in a manner of embracing and locking, and can be used to fork important parts of the human body such as the waist, body, shoulders, hands, and feet, so that the criminal is not easy to escape after being forked. At the same time, the use is simple, convenient and safe, and can meet the use needs in complex environments during anti-riot operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an overall structural diagram of an anti-riot catcher of the present invention, in which a movable locking knife is in an open state;

[0016] Figure 2 This is a schematic diagram of the installation structure of a movable locking knife of a riot-proof catcher of the present invention on a fixed fork arm;

[0017] Figure 3This is a schematic diagram of another installation structure of a riot-proof catcher of the present invention, in which a movable locking knife is mounted on a fixed fork arm;

[0018] Figure 4 for Figure 3 Schematic diagram of some structures;

[0019] Figure 5 This is a schematic structural diagram of a movable locking knife of a riot-proof catcher of the present invention;

[0020] Figure 6 This is a schematic structural diagram of a riot-proof catcher of the present invention with a movable locking knife from another viewing angle;

[0021] Figure 7 This is a schematic structural diagram of a trigger device of a riot-proof catcher of the present invention;

[0022] Figure 8 This is an overall structural diagram of a riot-proof catcher of the present invention, in which a movable locking knife is in a locked state;

[0023] Fig. 9 This is an overall structural diagram of an anti-riot capture device of the present invention when a protective shield is added;

[0024] Fig.10 This is a schematic diagram of another installation structure of a riot-proof catcher with a movable locking knife on a fixed fork arm of the present invention.

[0025] In the figure: 1. gripping rod; 2. rod seat; 3. fixed fork arm; 4. movable lock knife; 5. trigger device; 6. intermediate gear; 7. protective shield; 8. anti-cutting groove; 11. fixed rod; 12. telescopic rod; 13. connecting sleeve; 14. window-breaking tip; 31. first fork arm block; 32. second fork arm block; 33. back cover; 20. gun head connecting hole; 21. stop convex wall; 31. rubber ring groove; 32. sealing rubber ring; 33. lock pin for opening and closing the lock knife; 34. lock pin cable; 35. tension spring; 36. cable ; 37. Self-locking compression spring lock pin; 38. Lock rod connecting piece; 39. Movable slot; 301. First lock pin slot; 302. Tension spring mounting slot; 303. Cable mounting slot; 304. Second lock pin slot; 33a. Center lock rod; 33b. Lock head; 33c. Mounting gasket; 33d. Spring; 40. Clothes hook slot; 41. Toothed disc; 42. Tension spring winding wheel; 43. Tension spring winding slot; 44. Cable connecting wheel; 41a. Toothed slot; 51. Trigger block; 52. Block mounting rod; 53. Block telescopic spring. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments, so as to more clearly understand the technical ideas claimed for protection of the present invention.

[0027] like Figure 1-2The present invention is a riot-proof arrester, comprising a gripping rod 1, a rod seat 2, a fixed fork arm 3, a movable locking knife 4 and a trigger device 5. The gripping rod 1 is installed at the rear end of the rod seat 2 and extends toward the rear of the rod seat 2. The fixed fork arm 3 is installed at the side of the rod seat 2 and extends toward the front of the rod seat 2. The movable locking knife 4 is installed on the fixed fork arm 3 and can rotate on the fixed fork arm 3. The trigger device 5 is installed at the front end of the rod seat 2. The fixed fork arm 3 is installed with a locking knife opening and closing lock pin 33. The locking knife opening and closing lock pin 33 is specifically installed in the first locking pin groove 301 on the fixed fork arm 3. The locking knife opening and closing lock pin 33 is connected to the trigger device 5 by the trigger device 5. To control the extension and retraction, one end of the movable locking knife 4 connected to the fixed fork arm 3 is provided with a toothed disc 41 and is pivotally mounted on the fixed fork arm 3 through the toothed disc 41. A tension spring winding wheel 42 is provided on the toothed disc 41. The tension spring winding wheel 42 is coaxially mounted and fixed on the toothed disc 41 or is integrally die-cast on the toothed disc 41. During installation, the toothed disc 41 and the tension spring winding wheel 42 can be installed with bearings and cooperated with the installation shaft to be pivotally mounted on the fixed fork arm 3. A tension spring 35 is wound and connected on the tension spring winding wheel 42. One end of the tension spring 35 is connected to the tension spring winding wheel 42, and the other end of the tension spring 35 is fixedly connected to the fixed fork arm 3. The tooth groove 41a of the toothed disc 41 directly corresponds to the opening and closing lock pin 33 of the locking knife.

[0028] When the movable locking knife 4 is opened, the locking knife opening and closing lock pin 33 is positioned in the tooth groove 41a of the toothed disc 41 of the movable locking knife 4. When arresting a criminal, the fork is directed towards the criminal, and the human body touches the trigger device 5. After the trigger device 5 is squeezed, the locking knife opening and closing lock pin 33 is pulled to contract, and the positioning of the toothed disc 41 of the movable locking knife 4 is released. Then, under the tension of the tension spring 35, the toothed disc 41 rotates and drives the movable locking knife 4 to flip in the form of a hug to lock the forked parts of the criminal, such as the waist, body, shoulders, hands, feet and other important parts of the human body. The operation is simple and convenient, and the criminal is not easy to escape after being forked, which can meet the use needs in complex environments during riot control operations.

[0029] like Figure 1 , Figure 3-6As shown, the toothed disc 41 is provided with a cable connecting wheel 44, which can be coaxially installed on the toothed disc 41 opposite to the tension spring winding wheel 42, or integrally die-cast on the toothed disc 41, and the fixed fork arm 3 is provided with a cable installation groove 303, in which the cable 36 is installed, and the holding rod 1 includes a fixed rod 11, a telescopic rod 12 and a connecting sleeve 13, and the connection structure of the fixed rod 11, the telescopic rod 12 and the connecting sleeve 13 belongs to the structure of the existing telescopic holding rod, and one end of the fixed rod 11 is fixedly connected to the rear end of the rod seat 2 The other end of the fixed rod 11 is connected to the telescopic rod 12 through the connecting sleeve 13. The telescopic rod 12 is provided with a first tube body 16 that can slide up and down. One end of the cable 36 is fixedly connected to the cable connecting wheel 44. The other end of the cable 36 passes through the rod seat 2 and the fixed rod 11 and is fixedly connected to the first tube body 16. After the movable locking knife 4 is flipped and locked in a hugging form, pulling the first tube body 16 downward can pull the cable connecting wheel 44 through the cable 36 to drive the toothed disc 41 and the movable locking knife 4 to flip, reset and reopen, so as to facilitate the opening of the movable locking knife 4 after being locked.

[0030] like Figure 3-4As shown, the fixed fork arm 3 is composed of a first fork arm block 31 and a second fork arm block 32 assembled and connected, the toothed disc 41 of the movable locking knife 4 is installed between the front ends of the first fork arm block 31 and the second fork arm block 32, and a movable groove 39 for the movable locking knife 4 to rotate is formed between the front ends of the first fork arm block 31 and the second fork arm block 32. A tension spring mounting groove 302 is provided on the fixed fork arm 3, and a tension spring 35 is installed in the tension spring mounting groove 302. A tension spring winding groove 43 is provided on the peripheral wall of the tension spring winding wheel 42, and one end of the tension spring 35 extends and is wound around the tension spring winding groove 43 and is fixedly connected to the tension spring winding wheel 42. A self-locking compression spring lock pin 37 is installed on the fork arm 3. The self-locking compression spring lock pin 37 is specifically installed in the second lock pin groove 304 on the fixed fork arm 3. The self-locking compression spring lock pin 37 is linked with the knife lock opening and closing lock pin 33 and extends when the knife lock opening and closing lock pin 33 is retracted; the knife lock opening and closing lock pin 33 has the same structure as the self-locking compression spring lock pin 37, including a central locking rod 33a, a locking head 33b, a mounting gasket 33c and a spring 33d. The locking head 33b is arranged at the front end of the central locking rod 33a, and the mounting gasket 33c is installed on the fixed fork arm 3 at the rear end of the central locking rod 33a. The rear end of the central locking rod 33a passes through The installation gasket 33c, the spring 33d is sleeved on the central locking rod 33a and is located between the lock head 33b and the installation gasket 33c. A locking rod connecting piece 38 is installed on the fixed fork arm 3 at the rear end of the locking knife opening and closing lock pin 33 and the self-locking compression spring lock pin 37. The rear ends of the central locking rod 33a of the locking knife opening and closing lock pin 33 and the self-locking compression spring lock pin 37 are respectively connected to the two ends of the locking rod connecting piece 38, and the locking rod connecting piece 38 can rotate around the middle. The end of the locking rod connecting piece 38 connected to the central locking rod 33a of the locking knife opening and closing lock pin 33 is connected to the locking pin cable 34, and the locking pin cable 34 extends into the rod seat 2 is connected to the trigger device 5. When catching a criminal, the fork is directed at the criminal. The human body touches the trigger device 5. After the trigger device 5 is squeezed, the lock pin 33 is pulled by the lock pin cable 34 to shrink, and the positioning of the toothed disc 41 of the movable lock knife 4 is released. Then, under the pulling force of the tension spring 35, the toothed disc 41 rotates and drives the movable lock knife 4 to flip and lock the forked part of the criminal in a hugging manner. At the same time, the self-locking compression spring lock pin 37 is pushed out and positioned in the tooth groove 41a of the toothed disc 41 of the movable lock knife 4 to re-position the movable lock knife 4 for self-locking, further ensuring that the criminal is not easy to escape after being forked.

[0031] The locking rod connecting piece 38 can be a clip, one of the clamping arms of the locking rod connecting piece 38 is fixedly connected to the fixed fork arm 3, and the rear ends of the central locking rod 33a of the locking knife opening and closing lock pin 33 and the self-locking compression spring lock pin 37 are respectively connected to the two ends of the other clamping arm of the locking rod connecting piece 38, so that the self-locking compression spring lock pin 37 can be pushed out while the locking knife opening and closing lock pin 33 is contracted.

[0032] The trigger device 5 is specifically as follows Figure 7The trigger block 51, the block mounting rod 52 and the block telescopic spring 53 are shown. The trigger block 51 is mounted on the rod seat 2 and plugged with the holding rod 1 through the block mounting rod 52. The block telescopic spring 53 is sleeved on the block mounting rod 52 and is located at the rear end of the trigger block 51. The block telescopic spring 53 is installed and connected to the holding rod 1. The lock pin cable 34 is connected to the trigger block 51. After the trigger block 51 is squeezed, the block telescopic spring 53 is compressed and the lock pin cable 34 is pulled to pull the knife opening and closing lock pin 33 to retract. When the trigger block 51 is not squeezed and contacted by the human body, the trigger block 51 is reset under the elastic force of the block telescopic spring 53 and the knife opening and closing lock pin 33 is reset at the same time. At the same time, a second tube body 15 that can slide up and down is set on the telescopic rod 12. The second tube body 15 is connected to the trigger block 51 through a steel wire. Pulling the second tube body 15 can control the knife opening and closing lock pin 33 to retract. Auxiliary devices such as electric shock and lighting can also be installed on the trigger block 51 as needed. The auxiliary devices such as electric shock and lighting belong to the existing technology and will not be described in detail.

[0033] More specifically, Figure 1 , Figure 8-9 As shown, a window-breaking tip 14 is provided on the outer edge of the end of the fixed fork arm 3, and / or a protective shield 7 is installed at the front end of the fixed rod 11 of the grip rod 1. The window-breaking tip 14 can be used to break windows to arrest criminals and the protective shield 7 can be used to enhance the personal safety of police officers. Figure 1 , Figure 8 As shown, the outer edge of the movable locking knife 4 is provided with a clothes hooking groove 40, through which the clothes of the criminal can be hooked, and the inner arm edge of the fixed fork arm 3 and / or the inner edge of the movable locking knife 4 are provided with an anti-cutting groove 8. When a knife-wielding criminal attacks, the anti-cutting groove 8 can be used to resist and catch the knife of the criminal, further enhancing the defense of the personal safety of the police officer. Of course, it can also be used as Figure 1 The installation connection position of the movable locking knife 4 and the fixed fork arm 3 shown is used to block the knife.

[0034] like Fig.10 As shown, the movable locking knife 4 can also adopt another installation structure on the fixed fork arm 3, that is, after the tooth groove 41a of the toothed disk 41 of the movable locking knife 4 is meshed with the intermediate gear 6, the intermediate gear 6 and the locking knife opening and closing lock pin 33 are matched accordingly. When the movable locking knife 4 is opened, the locking knife opening and closing lock pin 33 is positioned in the tooth groove 41a of the intermediate gear 6. When arresting criminals, the fork is pointed at the criminals, and the human body touches the trigger device 5. The trigger device 5 is squeezed and then pulls the locking knife opening and closing lock pin 33 to retract, and the positioning of the intermediate gear 6 and the toothed disk 41 of the movable locking knife 4 is released. Then, under the tension of the tension spring 35, the toothed disk 41 rotates and drives the movable locking knife 4 to flip to lock the forked part of the criminal in a hugging form. At the same time, the self-locking compression spring lock pin 37 is pushed out and positioned in the tooth groove 41a of the intermediate gear 6 to re-self-lock the movable locking knife 4.

[0035] For those skilled in the art, various other corresponding changes and modifications can be made according to the technical solutions and concepts described above, and all of these changes and modifications should fall within the protection scope of the claims of the present invention.

Claims

1. An anti-riot arrester, comprising a gripping rod (1), a rod base (2), a fixed fork arm (3), a movable locking knife (4) and a trigger device (5), wherein the gripping rod (1) is mounted on the rear end of the rod base (2) and extends toward the rear of the rod base (2), the fixed fork arm (3) is mounted on the side of the rod base (2) and extends toward the front of the rod base (2), the movable locking knife (4) is mounted on the fixed fork arm (3) and can rotate on the fixed fork arm (3), and the trigger device (5) is mounted on the front end of the rod base (2), characterized in that: The fixed fork arm (3) is provided with a knife locking opening and closing lock pin (33), the knife locking opening and closing lock pin (33) being connected to the trigger device (5) and being controlled to extend and retract by the trigger device (5); one end of the movable knife locking knife (4) being connected to the fixed fork arm (3) is provided with a toothed disc (41) and is pivotally mounted to the fixed fork arm (3) via the toothed disc (41); a tension spring winding wheel (42) is provided on the toothed disc (41), a tension spring (35) is wound and connected to the tension spring winding wheel (42), and one end of the tension spring (35) is connected to the tension spring winding wheel ( 42), the other end of the tension spring (35) is fixedly connected to the fixed fork arm (3), the tooth groove (41a) of the toothed disc (41) directly corresponds to the knife lock opening and closing lock pin (33) or is meshed with the intermediate gear (6) so that the intermediate gear (6) corresponds to the knife lock opening and closing lock pin (33), the toothed disc (41) is provided with a cable connecting wheel (44), the fixed fork arm (3) is provided with a cable installation groove (303), the cable installation groove (303) is provided with a cable (36), the holding rod (1) includes a fixed rod (1 1), a telescopic rod (12) and a connecting sleeve (13), one end of the fixing rod (11) is fixedly connected to the rear end of the rod seat (2), the other end of the fixing rod (11) is connected to the telescopic rod (12) through the connecting sleeve (13), a first tube body (16) that can slide up and down is provided on the telescopic rod (12), one end of the cable (36) is fixedly connected to the cable connecting wheel (44), the other end of the cable (36) passes through the rod seat (2) and the fixing rod (11) and is fixedly connected to the first tube body (16), The fixed fork arm (3) is provided with a tension spring installation groove (302), the tension spring (35) is installed in the tension spring installation groove (302), a tension spring winding groove (43) is provided on the peripheral wall of the tension spring winding wheel (42), one end of the tension spring (35) extends and is wound on the tension spring winding groove (43) and is fixedly connected to the tension spring winding wheel (42), and a self-locking compression spring lock pin (37) is installed on the fixed fork arm (3), the self-locking compression spring lock pin (37) is linked with the knife locking opening and closing lock pin (33) and extends when the knife locking opening and closing lock pin (33) is retracted;The knife lock opening and closing lock pin (33) has the same structure as the self-locking compression spring lock pin (37), comprising a central lock rod (33a), a lock head (33b), a mounting gasket (33c) and a spring (33d), wherein the lock head (33b) is arranged at the front end of the central lock rod (33a), the mounting gasket (33c) is installed on the fixed fork arm (3) and is located at the rear end of the central lock rod (33a), the rear end of the central lock rod (33a) passes through the mounting gasket (33c), and the spring (33d) is sleeved on the central lock rod (33a) and is located between the lock head (33b) and the mounting gasket (33c). A locking rod connecting piece (38) is installed on the fixed fork arm (3) at the rear ends of the knife locking opening and closing lock pin (33) and the self-locking compression spring lock pin (37); the rear ends of the central locking rods (33a) of the knife locking opening and closing lock pin (33) and the self-locking compression spring lock pin (37) are respectively connected to the two ends of the locking rod connecting piece (38); the locking rod connecting piece (38) can rotate around its center; one end of the locking rod connecting piece (38) connected to the central locking rod (33a) of the knife locking opening and closing lock pin (33) is connected to a locking pin cable (34); the locking pin cable (34) extends through the rod seat (2) and is connected to the trigger device (5). ; 2. The anti-riot catcher according to claim 1, characterized in that: The locking rod connecting piece (38) is a clamp, one of the clamp arms of the locking rod connecting piece (38) is fixedly connected to the fixed fork arm (3), and the rear ends of the central locking rod (33a) of the locking knife opening and closing lock pin (33) and the self-locking compression spring lock pin (37) are respectively connected to the two ends of the other clamp arm of the locking rod connecting piece (38).

3. The anti-riot catcher according to claim 2, characterized in that: The trigger device (5) comprises a trigger block (51), a block mounting rod (52) and a block telescopic spring (53); the trigger block (51) is mounted on the rod seat (2) and plugged into the holding rod (1) via the block mounting rod (52); the block telescopic spring (53) is sleeved on the block mounting rod (52) and is located at the rear end of the trigger block (51); the block telescopic spring (53) is mounted and connected to the holding rod (1); and the lock pin cable (34) is connected to the trigger block (51).

4. The anti-riot catcher according to claim 1 or 2, characterized in that: The fixed fork arm (3) is composed of a first fork arm block (31) and a second fork arm block (32) assembled and connected, the toothed disc (41) of the movable locking knife (4) is installed between the front ends of the first fork arm block (31) and the second fork arm block (32), and a movable groove (39) for the movable locking knife (4) to rotate is formed between the front ends of the first fork arm block (31) and the second fork arm block (32).

5. The anti-riot catcher according to claim 3, characterized in that: The fixed fork arm (3) is provided with a first locking pin groove (301) and a second locking pin groove (304); the knife locking opening and closing locking pin (33) is installed in the first locking pin groove (301); and the self-locking compression spring locking pin (37) is installed in the second locking pin groove (304).

6. The anti-riot catcher according to claim 2 or 3, characterized in that: A window-breaking tip (14) is provided on the outer edge of the end of the fixed fork arm (3), and / or a protective shield (7) is installed at the front end of the fixed rod (11) of the holding rod (1).

7. The anti-riot catcher according to claim 1 or 4, characterized in that: Clothes hooking grooves (40) are provided on the outer edge of the movable locking knife (4), and anti-cutting grooves (8) are provided on the inner arm edge of the fixed fork arm (3) and / or on the inner edge of the movable locking knife (4).

Images