CN112066795A

CN112066795A - Omnidirectional constraint anti-riot fork

Info

Publication number: CN112066795A
Application number: CN202010785447.XA
Authority: CN
Inventors: 王光宇; 王雨时
Original assignee: Nanjing University of Science and Technology
Current assignee: Nanjing University of Science and Technology
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2020-12-11
Anticipated expiration: 2040-08-06
Also published as: CN112066795B

Abstract

The invention discloses an omnidirectional constraint anti-riot fork, which comprises a fork body, a fork handle and a pair of crank moving mechanisms, wherein rotating grooves are respectively formed in two ends of the fork body, limiting blocks are arranged on the bottom surfaces of the rotating grooves, the crank moving mechanisms are symmetrically arranged in the rotating grooves in the two ends of the fork body and are rotationally connected with the end parts of the fork body, and when the omnidirectional constraint anti-riot fork is used, the front surface of the anti-riot fork is upward, is opposite to a constrained object and exerts force forwards. The crank moving mechanism main body is stressed and rotates and lifts upwards around the rotating connection, and finally is vertical to the plane where the fork body and the fork handle are located, so that the constrained object enters the arc-shaped space formed by the fork body. At the moment, the crank moving mechanism is not stressed any more, and is reset downwards under the action of the reset spring, and stops after contacting with the limiting block on the fork body. At the moment, the constrained object is completely positioned in the closed space formed by the fork body and the crank moving mechanism. If the constrained object tries to escape backwards, the crank moving mechanisms on the two sides form omnidirectional constraint on the constrained object.

Description

Omnidirectional constraint anti-riot fork

Technical Field

The invention belongs to an anti-riot apparatus, and particularly relates to an omnidirectional constraint anti-riot fork.

Background

The existing explosion-proof fork structure has 2 problems. The first problem is that the structure is too simple to realize omnidirectional constraint on the constrained object. For example, some explosion-proof forks consist of only a fork body and a fork handle. When in use, although the restrained object can be prevented from approaching the user, the restrained object is difficult to be prevented from reversely separating from the restraint of the explosion-proof fork, and potential harm is caused to surrounding people; the second problem is that the structure is not reasonable and inconvenient to use. For example, some explosion-proof forks also consist of a fork body, a movable rod, a rotary connection (rivet), a reset spring and a fork handle, but the rotary connection (rivet) is perpendicular to a plane formed by the fork body and the fork handle. When the explosion-proof fork is used, the movable rod can only move in a plane formed by the fork body and the fork handle. The constrained object can enter the semicircular space formed by the fork body, but the constrained object also causes an obstacle to the reset of the movable rod. For this reason, the length of the movable rod can only be reduced, so that although the movable rod can be normally reset, a large gap is left between the top ends of the movable rods, and the constrained object can easily escape from the gap.

Disclosure of Invention

The invention aims to provide an omnidirectional constraint anti-riot fork, which solves the problem that the prior art is difficult to prevent a constrained object from reversely separating from the constraint of the anti-riot fork, and also solves the problem that the constrained object is easy to escape from a gap due to a larger gap existing between the top ends of movable rods in the prior art.

The technical solution for realizing the purpose of the invention is as follows: the utility model provides an anti-riot fork of qxcomm technology restraint, includes the fork body, fork handle and a pair of crank moving mechanism, the rotation groove has been opened respectively at fork body both ends, the rotation tank bottom surface is equipped with the stopper, crank moving mechanism symmetry sets up in the rotation inslot at fork body both ends to be connected with fork body tip rotation, along with the plane motion perpendicular with fork body and fork handle place plane, behind the touching stopper, stop motion realizes qxcomm technology restraint.

The crank moving mechanism comprises a crank moving rod, a rotating shaft and a reset spring, one end of the crank moving rod is inserted into a rotating groove of the fork body and is rotationally connected with the rotating groove through the reset spring and the rotating shaft, so that the crank moving rod moves along a second plane perpendicular to the plane where the fork body and the fork handle are located, and after the crank moving rod moves downwards to contact with a limiting block at the bottom of the rotating groove, the limiting block limits the crank moving rod to move downwards continuously.

Compared with the prior art, the invention has the remarkable advantages that:

(1) when the front of the explosion-proof fork is upward, the main body of the crank movable rod, the fork body and the fork handle are positioned in the same plane, and the crank movable rod does not move in the plane where the fork body and the fork handle are positioned, so that the omni-directional constraint of the constrained object is easily realized.

(2) The mechanical structure is simple, and the manufacture, the use and the maintenance are convenient.

Drawings

Fig. 1 is a three-dimensional view of an omnidirectional confinement anti-riot fork according to the present invention.

Fig. 2 is a front view of an omni-directional constraint anti-riot fork according to the present invention.

Fig. 3 is a side view of an omni-directional constraint anti-riot fork according to the present invention.

Fig. 4 is a diagram illustrating the use state of the omni-directional constrained anti-riot fork according to the present invention.

Detailed Description

The present invention is described in further detail below with reference to the attached drawing figures.

With reference to fig. 1-4, the omnidirectional-constraint anti-riot fork comprises a fork body 1, a fork handle 5 and a pair of crank moving mechanisms, wherein the fork body 1 is arc-shaped, the fork handle 5 is fixed on the outer wall of the middle part of the fork body 1, and the pair of crank moving mechanisms are symmetrically arranged at two ends of the fork body 1, are rotatably connected with the end part of the fork body 1 and move along a plane vertical to the plane where the fork body 1 and the fork handle 5 are located.

The two ends of the fork body 1 are respectively provided with a rotating groove, and the bottom surface of the rotating groove is provided with a limiting block.

The crank moving mechanism comprises a crank moving rod 2, a rotating shaft 3 and a return spring 4. One end of the crank movable rod 2 is inserted into a rotating groove of the fork body 1, the reset spring 4 is sleeved on the rotating shaft 3 and is rotatably connected with the rotating groove through the rotating shaft 3, so that the crank movable rod 2 moves along a second plane vertical to the plane where the fork body 1 and the fork handle 5 are located, and after the crank movable rod 2 moves downwards to contact with a limiting block at the bottom of the rotating groove, the limiting block limits the crank movable rod to move downwards continuously. A first included angle alpha ranging from 20 degrees to 70 degrees is formed between the extension lines of the crank movable rod 2 and the fork handle 5, as shown in figure 2.

When the front face of the explosion-proof fork is upward, the crank movable rod 2 is pressed on the limit block of the fork body 1 under the action of the reset spring 4, and at the moment, the crank movable rod 2, the fork body 1 and the fork handle 5 are positioned in the same plane. The crank moving rod 2 does not move in the plane of the fork handle 5 of the fork body 1.

One end of the crank movable rod 2, which is far away from the rotating shaft 3, is tilted upwards to form a second included angle beta of 110-160 degrees with the main body of the crank movable rod 2, as shown in fig. 3, and the middle of the main body of the crank movable rod 2 protrudes outwards.

The end of the fork handle 5 is provided with an external thread, and if necessary, a tubular extension handle with an internal thread can be connected.

A certain distance is left between the end parts of the two crank movable rods 2 which are tilted upwards.

The fork body 1, the crank movable rod 2, the rotating shaft 3 and the fork handle 5 are all made of high-strength steel or high-strength aluminum alloy.

In use, the anti-riot fork is arranged to face upwards, face the restricted object and exert force forwards in combination with the combined drawings of fig. 1 and 4. The main body of the crank movable rod 2 is stressed and rotates and lifts upwards around the rotating connection, and finally is vertical to the plane where the fork body 1 and the fork handle 5 are located, so that the constrained object enters the arc-shaped space formed by the fork body 1. At this moment, the crank movable rod 2 is no longer stressed and is reset downwards under the action of the reset spring 4, and the crank movable rod stops after contacting with a limit block on the fork body 1. At this time, the object to be restricted is completely positioned in the closed space formed by the fork body 1 and the two crank movable rods 2. If the constrained object tries to escape backwards, the crank movable rods 2 on the two sides form omnidirectional constraint on the constrained object.

Claims

1. The utility model provides an anti-riot fork of qxcomm technology restraint, includes fork body (1), fork handle (5), its characterized in that: still include a pair of crank moving mechanism, the rotation groove has been opened respectively at fork body (1) both ends, the rotation tank bottom surface is equipped with the stopper, crank moving mechanism symmetry sets up in the rotation inslot at fork body (1) both ends to rotate with fork body (1) tip and be connected, along with fork body (1) and fork handle (5) place plane vertically planar motion, after touching the stopper, the stop motion realizes the qxcomm technology restraint.

2. The omni-directionally constrained riot control fork of claim 1, wherein: the crank moving mechanism comprises a crank moving rod (2), a rotating shaft (3) and a reset spring (4), wherein one end of the crank moving rod (2) is inserted into a rotating groove of the fork body (1), the reset spring (4) is sleeved on the rotating shaft (3) and is rotatably connected with the rotating groove through the rotating shaft (3), so that the crank moving rod (2) moves along a second plane vertical to the plane where the fork body (1) and the fork handle (5) are located, and after the crank moving rod (2) moves downwards to contact with a limiting block at the bottom of the rotating groove, the limiting block limits the crank moving rod to continue to move downwards.

3. The omni-directionally constrained riot control fork of claim 2, wherein: a first included angle alpha formed between the extension lines of the crank movable rod (2) and the fork handle (5) ranges from 20 degrees to 70 degrees.

4. The omni-directionally constrained riot control fork of claim 2, wherein: one end of the crank movable rod (2) far away from the rotating shaft (3) tilts upwards to form a second included angle beta with the main body of the crank movable rod (2), and the included angle beta ranges from 110 degrees to 160 degrees.

5. The omni-directionally constrained riot control fork of claim 2, wherein: the middle part of the main body of the crank movable rod (2) protrudes outwards.

6. An omnidirectional restraint riot fork according to claims 2-5, wherein: the crank movable rod (2) and the rotating shaft (3) are both made of high-strength steel or high-strength aluminum alloy.

7. An omnidirectional restraint riot fork according to any one of claims 1-5, wherein: the end part of the fork handle (5) is provided with an external thread for connecting a tubular extension handle with an internal thread.

8. The omni-directionally constrained riot control fork of claim 1, wherein: the fork body (1) and the fork handle (5) are both made of high-strength steel or high-strength aluminum alloy.