阅读说明：本技术 一种可弹射捕捉绳的警用防暴叉 (Police antiriot fork capable of ejecting catching rope ) 是由 廖瑶莉 于 2019-11-13 设计创作，主要内容包括：本发明公开的一种可弹射捕捉绳的警用防暴叉,包括叉头,所述叉头左端面上下对称的设有弹射腔,所述弹射腔内设有捕捉弹射装置,所述捕捉弹射装置包括可左右滑动的设于所述弹射腔内的弹射滑块,所述叉头右端面固定设有握杆,所述握杆右端设有弹射控制装置,所述弹射控制装置右侧设有夹紧装置,本发明可自动在保卫人员握紧防暴叉时自动抓紧手臂,防止意外情况导致防暴叉脱手的危险情况,同时在遇到危险情况或危险情况已解除时需要放开防暴叉时,可快速的松开手臂,弹射的捕捉绳可帮助保卫人员更有效地远距离限制暴徒的行动,为保卫行动提供更有力的支撑。(The police antiriot fork capable of ejecting the catching rope comprises a fork head, wherein ejection cavities are symmetrically arranged on the upper and lower parts of the left end surface of the fork head, a catching ejection device is arranged in the ejection cavity and comprises an ejection sliding block which can slide left and right and is arranged in the ejection cavity, the invention can automatically grasp the arm when a defender grasps the anti-riot fork tightly, prevent the dangerous situation that the anti-riot fork falls off from the hand due to the accident condition, meanwhile, when the anti-riot fork needs to be released when a dangerous condition is met or relieved, the arms can be quickly loosened, the catapulted catching rope can help the guard to effectively and remotely limit the action of the rioter, and powerful support is provided for the guard action.)

1. The utility model provides a police's anti-riot fork of rope is caught in can launching which characterized in that: the clamping device comprises a fork head, ejection cavities are symmetrically arranged on the left end face of the fork head up and down, a capturing ejection device is arranged in each ejection cavity, each capturing ejection device comprises an ejection slide block which can slide left and right and is arranged in each ejection cavity, each ejection slide block is provided with a fixture block channel which is communicated up and down, two first fixture blocks are arranged in each fixture block channel in a vertically sliding manner, and a first spring is fixedly connected between the adjacent side end faces of the first fixture blocks;

a holding rod is fixedly arranged on the right end face of the fork head, an ejection control device is arranged on the right end of the holding rod and comprises a control cavity which is arranged on the right end of the holding rod and is provided with a forward opening, inclined plane blocks with rear end faces inclined to the right rear side are symmetrically and fixedly arranged on the upper wall and the lower wall of the control cavity, chutes with opposite openings are arranged on the end faces of one sides opposite to the inclined plane blocks, sliding plates with upper ends and lower ends extending into the chutes are arranged between the inclined plane blocks in a left-right sliding mode, push rods penetrate through the sliding plates in the front-back direction between the inclined plane blocks and are fixedly arranged on the sliding plates, push blocks are fixedly arranged on the front ends of the push rods, the rear end faces of the push rods are inclined to the right rear side, and fourth springs are fixedly;

the ejection control device right side is equipped with clamping device, clamping device include in control chamber right side longitudinal symmetry and fixed the locating the supporting shoe of terminal surface before the holding rod, rotatable rocking arm that is equipped with between, the fixed arc fixed plate that is equipped with of terminal surface before the rocking arm, both ends symmetry is equipped with the turn-over groove of opening left about the arc fixed plate left end face, both sides are equipped with arc splint around the arc fixed plate, arc splint right-hand member face is fixed and is equipped with the third connecting block, the rotatable connection of third connecting block in between the front and back terminal surface of turn-over groove.

2. A police riot fork as defined in claim 1, wherein: the catching ejection device comprises a pull rod cavity communicated with the right wall of the fixture block channel, one side, close to the right end face of the first fixture block, of the first fixture block is vertically symmetrical and fixedly provided with a first connecting block, and the right end of the first connecting block is rotatably provided with a connecting rod;

a pull rod is arranged in the center of the right wall of the pull rod cavity in a left-right sliding manner, the upper end surface and the lower end surface of the left end of the pull rod are symmetrical and fixedly provided with second connecting blocks, and the right end of the connecting rod is rotatably connected with the second connecting blocks on the same side;

the right end of the pull rod extends to the right side of the first connecting block and is fixedly provided with a first pull wire.

3. A police riot fork as defined in claim 1, wherein: a second spring is fixedly connected between the right end face of the ejection sliding block and the right wall of the ejection cavity, and a first magnet is fixedly arranged in the left end face of the ejection sliding block;

the upper wall and the lower wall of the ejection cavity are symmetrical and are communicated with first clamping grooves;

the ejection cavity is internally provided with a rope end fixing block which can slide left and right on the left side of the ejection sliding block, a second magnet is fixedly arranged in the right end face of the rope end fixing block, and the upper side and the lower side of the rope end fixing block are fixedly connected with a catching rope between the left end faces.

4. A police riot fork as defined in claim 1, wherein: the ejection control device comprises symmetrical slide block cavities which are communicated with the upper wall and the lower wall of the control cavity, and slide blocks are arranged in the slide block cavities in a left-right sliding manner;

a sleeve cavity with opposite openings is formed in the end face of one side, close to the symmetry center, of the sliding block, a first fixing rod is fixedly arranged between the front wall and the rear wall of the sleeve cavity, a sleeve is arranged on the first fixing rod in a front-back sliding mode, and a third spring is fixedly connected between the front end face of the sleeve and the front wall of the sleeve cavity;

and a second fixed rod is fixedly connected between the sleeves at the upper side and the lower side, and the other end of the first pull wire is fixedly connected to the same side to serve as the left end face of the sleeve.

5. A police riot fork as defined in claim 1, wherein: the clamping device comprises an arc-shaped slide way which is arranged on the left end surface of the arc-shaped clamping plate at the rear side and has a left opening, a bendable arc-shaped sliding plate is arranged in the arc-shaped slide way in a left-right sliding manner, and a fifth spring is fixedly connected between the right end surface of the arc-shaped sliding plate and the right wall of the arc-shaped slide way;

the arc slide left end face is fixed and is equipped with the second fixture block, second fixture block right-hand member face is equipped with the right fixture block chamber of opening, but the fixture block intracavity horizontal slip be equipped with the third fixture block, third fixture block left end face with fixedly connected with sixth spring between the fixture block chamber left wall.

6. A police riot fork as defined in claim 5, wherein: the wire winding device is characterized in that a wire winding cavity is formed in the right wall of the arc-shaped slide way, a first motor is fixedly arranged on the front wall of the wire winding cavity, the rear end of the first motor is in power connection with a wire winding wheel, and a second wire drawing wire penetrating through the left wall of the clamping block cavity is fixedly connected between the wire winding wheel and the left end of a third clamping block.

7. A police riot fork as defined in claim 1, wherein: a tightening cavity with a leftward opening is formed in the left end face of the arc-shaped clamping plate on the front side, a tightening sliding block is arranged in the tightening cavity and can slide left and right, a second clamping groove with a leftward opening is formed in the left end face of the tightening sliding block, and a third clamping groove is formed in the rear wall of the second clamping groove in a communicating mode;

a tooth groove is formed in the lower end face of the tightening sliding block;

a protective cover is fixedly arranged in the lower wall of the right end of the tightening cavity, a screw cavity communicated with the tightening cavity is arranged on the front end face of the protective cover, a second motor is fixedly arranged in the right wall of the screw cavity, and the left end of the second motor is in power connection with a screw rod meshed with the tooth grooves in the screw cavity;

the holding rod rear end face is close to the right side of the control cavity and is fixedly provided with a first pressure sensor which is electrically connected with the first motor, and the inner side of the left end face of the arc-shaped fixing plate is fixedly provided with a second pressure sensor which is electrically connected with the second motor.

Technical Field

The invention relates to the technical field of police light weapons, in particular to a police antiriot fork with a catapulting capture rope.

Background

Due to the requirement of public safety, a large number of security light weapons need to be equipped in places with more people stream such as stations and the like to prevent the threat of violence, however, when dealing with the riot, most of the riot hold weapons, when the defenders hold tools such as riot forks and fight with the riot nearby, the security light weapons are likely to be injured or even endanger life, the currently equipped riot forks need to be matched by multiple people to successfully limit the action of the riot, when facing an emergency, the casualties are likely to be enlarged due to untimely arrival of people, and the situation that the riot forks are robbed and take off hands is likely to occur. The present invention sets forth a device that solves the above problems.

Disclosure of Invention

The technical problem is as follows:

the currently equipped anti-riot fork requires cooperation of multiple persons to be able to successfully restrict the action of a riot, and when the emergency situation is faced, the casualties are likely to be enlarged because the persons arrive in time, and the anti-riot fork is likely to be robbed and take off hands.

In order to solve the above problems, the present embodiment provides a police anti-riot fork capable of ejecting a catching rope, which comprises a fork head, wherein ejection cavities are symmetrically arranged on the left end surface of the fork head in an up-and-down manner, a catching and ejecting device is arranged in the ejection cavities, the catching and ejecting device comprises an ejection slide block which can slide left and right in the ejection cavities, a block channel is arranged in the ejection slide block in a vertically through manner, two first blocks are arranged in the block channel in a vertically sliding manner, a first spring is fixedly connected between the adjacent side end surfaces of the first blocks, a holding rod is fixedly arranged on the right end surface of the fork head, an ejection control device is arranged on the right end of the holding rod, the ejection control device comprises a control cavity which is arranged on the right end of the holding rod and has a forward opening, inclined plane blocks which have rear end surfaces inclined towards the right rear direction are symmetrically arranged on the upper and lower walls of the control cavity, the opposite side end surface of the inclined surface block is provided with sliding grooves with opposite openings, a sliding plate with upper and lower ends extending into the sliding grooves is arranged between the inclined surface blocks in a left-right sliding manner, a push rod penetrates through the sliding plate and is fixedly arranged between the inclined surface blocks in a front-back manner, the front end of the push rod extends to the outside and is fixedly provided with a push block, the rear end surface of the push rod inclines towards the right back side, a fourth spring is fixedly connected between the left end surface of the push rod and the left wall of the control cavity, the right side of the ejection control device is provided with a clamping device which comprises supporting blocks which are vertically symmetrical on the right side of the control cavity and are fixedly arranged on the front end surface of the holding rod, a rotating arm is rotatably arranged between the supporting blocks, an arc-shaped fixed plate is fixedly arranged on the front end surface of the rotating arm, turnover grooves with left openings are, the right end face of the arc-shaped clamping plate is fixedly provided with a third connecting block, and the third connecting block is rotatably connected between the front end face and the rear end face of the turnover groove. Wherein, catch the jettison device and locate including the intercommunication the pull rod chamber of fixture block passageway right side wall, one side longitudinal symmetry that first fixture block right-hand member face is close to and fixed first connecting block that is equipped with, the rotatable connecting rod that is equipped with of first connecting block right-hand member, but the pull rod that slides from side to side in the pull rod chamber right side wall center is equipped with the pull rod, lower terminal surface symmetry and fixed second connecting block that is equipped with on the pull rod left end, the rotatable connection in homonymy of connecting rod right-hand member the second connecting block, the pull rod right-hand member extends to first connecting block right side and fixed first acting as go-between that is equipped with.

Preferably, launch the slider right-hand member face with fixedly connected with second spring between the chamber right wall launches, launch slider left end internal fixation and be equipped with first magnet, it is equipped with first draw-in groove to launch upper and lower wall symmetry and intercommunication in the chamber, launch the intracavity and in but launch slider left side horizontal slip be equipped with the rope end fixed block, rope end fixed block right-hand member internal fixation is equipped with second magnet, upper and lower both sides fixedly connected with catches the rope between the rope end fixed block left end face.

Wherein, launch controlling means and locate including symmetry and intercommunication the slider chamber of wall about the control chamber, but slider intracavity horizontal slip be equipped with the slider, a side end face that the slider is close to the symmetric center is equipped with the relative sleeve chamber of opening, the fixed first dead lever that is equipped with between the wall around the sleeve chamber, gliding the being equipped with sleeve around can on the first dead lever, terminal surface before the sleeve with fixedly connected with third spring between the sleeve chamber antetheca, upper and lower both sides fixedly connected with second dead lever between the sleeve, the other end fixed connection of first acting as in the homonymy sleeve left end face.

Clamping device is including locating the rear side arc splint left end face and opening arc slide left, but the horizontal slip is equipped with flexible arc slide in the arc slide, arc slide right-hand member face with fixedly connected with fifth spring between the arc slide right wall, the fixed second fixture block that is equipped with of arc slide left end face, second fixture block right-hand member face is equipped with the opening fixture block chamber right, but the fixture block intracavity horizontal slip be equipped with the third fixture block, third fixture block left end face with fixedly connected with sixth spring between the fixture block chamber left wall.

Preferably, a winding cavity is formed in the right wall of the arc-shaped slideway, a first motor is fixedly arranged on the front wall of the winding cavity, the rear end of the first motor is dynamically connected with a winding wheel, and a second pull wire penetrating through the left wall of the clamping block cavity is fixedly connected between the winding wheel and the left end of the third clamping block.

Preferably, the left end surface of the arc-shaped clamping plate on the front side is provided with a tightening cavity with a leftward opening, a tightening slide block is arranged in the tightening cavity in a left-right sliding manner, a second clamping groove with a leftward opening is formed in the left end face of the tightening slide block, a third clamping groove is communicated with the rear wall of the second clamping groove, the lower end face of the tightening slide block is provided with a tooth groove, the lower wall of the right end of the tightening cavity is internally and fixedly provided with a protective cover, a screw cavity communicated with the tightening cavity is arranged on the front end surface of the protective cover, a second motor is fixedly arranged in the right wall of the screw cavity, the left end of the second motor is in power connection with a screw rod meshed with the tooth groove in the screw rod cavity, a first pressure sensor electrically connected with the first motor is fixedly arranged on the rear end surface of the holding rod and close to the right side of the control cavity, and a second pressure sensor which is electrically connected with the second motor is fixedly arranged in the left end face of the arc-shaped fixing plate.

The invention has the beneficial effects that: the invention can automatically grasp the arm when the defender grips the anti-riot fork, thereby preventing the dangerous situation that the anti-riot fork falls off the hand due to an accident situation, and simultaneously, when the dangerous situation or the dangerous situation is relieved and the anti-riot fork needs to be released, the arm can be quickly released, and the catapulted catching rope can help the defender to more effectively limit the action of the riot in a long distance, thereby providing stronger support for the defending action.

Drawings

For ease of illustration, the invention is described in detail by the following specific examples and figures.

FIG. 1 is a schematic view of the overall structure of a police antiriot fork with a catapult capture rope according to the present invention;

FIG. 2 is an enlarged schematic view of "A" of FIG. 1;

FIG. 3 is an enlarged schematic view of "B" of FIG. 1;

FIG. 4 is a cross-sectional view taken in the direction "C-C" of FIG. 1;

FIG. 5 is a cross-sectional view taken in the direction "D-D" of FIG. 4;

FIG. 6 is a cross-sectional view taken in the direction "E-E" of FIG. 4;

FIG. 7 is a cross-sectional view taken in the direction "F" of FIG. 4;

fig. 8 is an enlarged schematic view of "G" of fig. 6.

Detailed Description

The invention will now be described in detail with reference to fig. 1-8, for ease of description, the orientations described below will now be defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The invention relates to a police antiriot fork capable of ejecting a catching rope, which is mainly applied to the security protection work of the police, and the invention is further explained by combining the attached drawings of the invention as follows:

the police antiriot fork capable of ejecting the catching rope comprises a fork head 11, wherein ejection cavities 12 are symmetrically arranged on the left end surface of the fork head 11 in the vertical direction, a catching ejection device 101 is arranged in each ejection cavity 12, the catching ejection device 101 comprises an ejection slide block 13 which can slide left and right and is arranged in each ejection cavity 12, a block channel 14 is arranged in each ejection slide block 13 in a vertically through mode, two first block blocks 15 are arranged in each block channel 14 in a vertically sliding mode, a first spring 16 is fixedly connected between the adjacent side end surfaces of the first block blocks 15, a holding rod 29 is fixedly arranged on the right end surface of the fork head 11, an ejection control device 102 is arranged on the right end of the holding rod 29, each ejection control device 102 comprises a control cavity 30 which is arranged at the right end of the holding rod 29 and has a forward opening, inclined plane blocks 31 with rear end surfaces inclined towards the right rear are symmetrically arranged on the upper wall and the lower wall of the control cavity 30, the end face of one side opposite to the inclined plane block 31 is provided with sliding grooves 32 with opposite openings, sliding plates 33 with upper and lower ends extending into the sliding grooves 32 are arranged between the inclined plane blocks 31 in a left-right sliding manner, the sliding plates 33 penetrate through the inclined plane blocks 31 in the front-back direction and are fixedly provided with push rods 34, the front ends of the push rods 34 extend to the outside and are fixedly provided with push blocks 35, the rear end face of the push rods 34 inclines towards the right rear direction, a fourth spring 43 is fixedly connected between the left end face of the push rods 34 and the left wall of the control cavity 30, the right side of the ejection control device 102 is provided with a clamping device 103, the clamping device 103 comprises supporting blocks 44 which are symmetrically arranged on the right side of the control cavity 30 from top to bottom and are fixedly arranged on the front end face of the holding rod 29, a rotating arm 45 is rotatably arranged between the supporting blocks, an arc-shaped fixing plate 46 is fixedly arranged on the front end face, arc splint 47 are arranged on the front side and the rear side of the arc fixing plate 46, a third connecting block 48 is fixedly arranged on the right end face of the arc splint 47, and the third connecting block 48 is rotatably connected between the front end face and the rear end face of the turnover groove 49.

According to an embodiment, the capturing and ejecting device 101 is described in detail below, the capturing and ejecting device 101 includes a pull rod cavity 17 communicated with and disposed on the right wall of the fixture block channel 14, a first connecting block 18 is vertically and symmetrically and fixedly disposed on one side of the right end face of the first fixture block 15, a connecting rod 19 is rotatably disposed on the right end of the first connecting block 18, a pull rod 20 is disposed in the center of the right wall of the pull rod cavity 17 and can slide left and right, a second connecting block 21 is symmetrically and fixedly disposed on the upper and lower end faces of the left end of the pull rod 20, the right end of the connecting rod 19 is rotatably connected to the second connecting block 21 on the same side, and a first pull wire 22 is fixedly disposed on the right side of the first connecting block 18 and extends to the right end of the pull.

Beneficially, a second spring 23 is fixedly connected between the right end face of the ejection sliding block 13 and the right wall of the ejection cavity 12, a first magnet 24 is fixedly arranged in the left end face of the ejection sliding block 13, the upper wall and the lower wall of the ejection cavity 12 are symmetrically and communicated with a first clamping groove 28, a rope end fixing block 25 is arranged in the ejection cavity 12 and on the left side of the ejection sliding block 13 in a left-right sliding manner, a second magnet 26 is fixedly arranged in the right end face of the rope end fixing block 25, and a catching rope 27 is fixedly connected between the left end faces of the rope end fixing blocks 25 on the upper side and the lower side.

According to an embodiment, the ejection control device 102 is described in detail below, the ejection control device 102 includes slider cavities 36 symmetrically and communicated with the upper wall and the lower wall of the control cavity 30, sliders 37 are provided in the slider cavities 36 to be capable of sliding left and right, sleeve cavities 38 with opposite openings are provided on one side end surfaces of the sliders 37 near the symmetry center, a first fixing rod 39 is fixedly provided between the front wall and the rear wall of the sleeve cavities 38, sleeves 40 are provided on the first fixing rod 39 to be capable of sliding front and rear, a third spring 41 is fixedly connected between the front end surface of the sleeve 40 and the front wall of the sleeve cavity 38, a second fixing rod 42 is fixedly connected between the sleeves 40 on the upper side and the lower side, and the other end of the first pull wire 22 is fixedly connected to the left end surface of the sleeve 40 on the same side.

According to the embodiment, the following detailed description is provided for the clamping device 103, the clamping device 103 includes the arc-shaped slide way 50 which is arranged at the rear side and has the left end face of the arc-shaped clamp plate 47 and the opening facing left, the arc-shaped slide way 50 is provided with the bendable arc-shaped slide plate 51 which can slide left and right, the right end face of the arc-shaped slide plate 51 is fixedly connected with the fifth spring 52 between the right walls of the arc-shaped slide way 50, the left end face of the arc-shaped slide plate 51 is fixedly provided with the second clamping block 53, the right end face of the second clamping block 53 is provided with the clamping block cavity 54 having the right opening facing right, the clamping block cavity 54 is provided with the third clamping block 55 which can slide left and right, and the left end face of the third clamping block 55.

Beneficially, a winding wire cavity 58 is arranged in the right wall of the arc-shaped slideway 50, a first motor 59 is fixedly arranged on the front wall of the winding wire cavity 58, a winding wire wheel 60 is dynamically connected to the rear end of the first motor 59, and a second pull wire 57 penetrating through the left wall of the latch cavity 54 is fixedly connected between the winding wire wheel 60 and the left end of the third latch 55.

Beneficially, a tightening cavity 61 with a leftward opening is formed in the left end face of the arc-shaped clamping plate 47 on the front side, a tightening slider 62 is arranged in the tightening cavity 61 and can slide left and right, a second clamping groove 63 with a leftward opening is formed in the left end face of the tightening slider 62, a third clamping groove 64 is arranged in the rear wall of the second clamping groove 63 in a communicating manner, a tooth groove 65 is formed in the lower end face of the tightening slider 62, a protective cover 66 is fixedly arranged in the lower wall of the right end of the tightening cavity 61, a screw cavity 67 communicated with the tightening cavity 61 is formed in the front end face of the protective cover 66, a second motor 68 is fixedly arranged in the right wall of the screw cavity 67, a screw 69 meshed with the tooth groove 65 is dynamically connected to the left end of the second motor 68 at the inner side of the screw cavity 67, a first pressure sensor 70 electrically connected to the first motor 59 is fixedly arranged on the rear end face of the grip 29 and close to the right side of the control cavity 30, and a second pressure sensor 71 electrically connected to the.

The following detailed description of the steps of using the police anti-riot fork with a catapult capture rope in this context will be made with reference to fig. 1 to 8:

at the beginning, the ejection slide block 13 is at the right limit position, one end of the first fixture block 15 far from the symmetric center extends into the first fixture groove 28 at the same side, the rope end fixing block 25 is attracted together under the weak attraction between the first magnet 24 and the second magnet 26, the second spring 23 is in a compressed state, the push rod 34 is at the left limit position, the second fixing rod 42 abuts against the inclined plane of the inclined plane block 31 and abuts against the right end face of the push rod 34, the third spring 41 is always in a stretched state, the arc-shaped sliding plate 51 is at the right limit position, the fifth spring 52 is in a compressed state, the third fixture block 55 is completely received in the fixture block cavity 54, the sixth spring 56 is in a compressed state, and the screw 69 is meshed with the right end of the tooth groove 65.

When the device works, an arm placed at the right end of the holding rod 29 penetrates between the arc-shaped clamping plates 47, fingers press the first pressure sensor 70, the first pressure sensor 70 starts the first motor 59, the first motor 59 starts to drive the winding wheel 60 to rotate, the winding wheel 60 loosens the second pull wire 57, then the left end of the arc-shaped sliding plate 51 extends into the tightening cavity 61 under the action of the fifth spring 52 and is abutted against the left end of the tightening slider 62, at the moment, the second clamping block 53 is inserted into the second clamping groove 63, the right end of the third clamping block 55 extends into the third clamping groove 64 to be clamped under the action of the sixth spring 56, the second motor 68 starts to drive the screw 69 to rotate, the tightening slider 62 is driven to slide right through threaded engagement to tighten the distance between the arc-shaped clamping plates 47, when 74 senses a set pressure value, the second motor 68 stops rotating, and then the arc-shaped clamping plates 47 clamp the arm, so as to prevent the anti-riot fork from, when the catching rope 27 needs to be launched, the thumb of the hand placed at the right end of the holding rod 29 can be used for pushing the pushing block 35 rightwards, the pushing rod 34 pushes the second fixing rod 42 rightwards, the second fixing rod 42 is pushed to slide downwards by the inclined plane of the inclined plane block 31 while sliding rightwards, the sliding block 37 is driven to slide rightwards when the second fixing rod 42 slides rightwards, the sliding block 37 pulls the first pull wire 22 rightwards, the first pull wire 22 pulls the pull rod 20 rightwards, the first fixture block 15 slides towards the direction close to the first spring 16 and is separated from the first fixture groove 28, when the pushing rod 34 slides rightwards to the right limit position, the left end of the second fixing rod 42 is separated from the right end face of the pushing rod 34 and abutted against, at the moment, under the action of the second spring 23, the sliding block 13 is ejected to slide leftwards rapidly, the rope end fixing block 25 is ejected out, when the person in the middle of the catching rope 27 is touched, the rope end fixing blocks 25 at the upper end and the lower end, when the ejection slide block 13 slides to the left, the slide block 37 is pulled by the first pull wire 22 to slide to the left limit position, at the moment, the push block 35 is released, the push rod 34 slides to the left extreme position under the action of the fourth spring 43, and when the inclined surface of the push rod 34 is pressed against the second fixing rod 42, the second fixing rod 42 drives the sleeve 40 to slide backwards, and when the sleeve is disengaged from the inclined surface of the push rod 34, the sleeve 40 and the second fixing rod 42 are slid forward to be returned to the initial state by the third spring 41, when the anti-riot fork needs to be released when a dangerous condition is met or relieved, the finger does not press the first pressure sensor 70 any more, the first pressure sensor 70 starts the first motor 59, the first motor 59 reversely winds the second pull wire 57, the second pull wire 57 pulls the third block 55 so that the third block 55 is separated from the third slot 64, and the arc-shaped sliding plate 51 is pulled back into the arc-shaped sliding rail 50 to return to the initial state.

The invention has the beneficial effects that: the invention can automatically grasp the arm when the defender grips the anti-riot fork, thereby preventing the dangerous situation that the anti-riot fork falls off the hand due to an accident situation, and simultaneously, when the anti-riot fork needs to be released when the dangerous situation or the dangerous situation is relieved, the arm can be quickly released, and the catapulted catching rope can help the defender to more effectively limit the action of a riot in a long distance, thereby providing stronger support for the defending action.

In the above manner, a person skilled in the art can make various changes depending on the operation mode within the scope of the present invention.