Barbed nail device of car stopping roadblock

Abstract

A barbed nail device of a car stopping roadblock is formed by sequentially connecting and combining a plurality of barbed nail assemblies in parallel, and each barbed nail assembly comprises a spherical bolt, a nut installed on the spherical bolt and a barbed nail arranged on the rod portion of the spherical bolt in a sleeving mode. After the barbed nail is sleeved on the spherical bolt with the special-shaped sealing ring, on one hand, the spherical arc-shaped structure can effectively reduce the friction force between the nail belt and the ground when the nail belt is unfolded, so that a traction device can rapidly unfold the roadblock, and on the other hand, strong damping force is generated between the special-shaped sealing ring and the barbed nail, so that the requirements of rapidly puncturing a tire and improving the safety of the roadblock are met. Therefore, the purpose of quick deflation is achieved, and the criminal offender is subdued.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of the roadblock for stopping vehicles, and particularly relates to a spike device of the roadblock for stopping vehicles. BACKGROUND

[0002] When arresting suspects, public security and armed police personnel need to jointly block and check road intersections; but suspects, by virtue of high-speed driving of motor vehicles, on the one hand, easily cause casualties, and on the other hand, the escape of suspects brings greater danger to society, and in order to stop motor vehicles, a large number of stopping devices need to be used.

[0003] Since most of the existing stopping devices adopt roadblocks with warning lights, and criminals only want to rush out of the roadblock to continue fleeing in an emergency, the stopping devices have the defect that no damage is caused to the vehicles of the criminals to forcibly stop the vehicles.

[0004] In view of the above technical problems, the present case is born. SUMMARY

[0005] The utility model discloses a spike device which can quickly deploy a spike belt to intercept a criminal vehicle.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a spike device of the roadblock for stopping vehicles is composed of a plurality of spike assemblies which are sequentially and parallelly connected, characterized in that the spike assembly comprises a spherical bolt, a nut mounted on the spherical bolt, and a spike sleeved on the rod of the spherical bolt.

[0007] One end of the spherical bolt is provided with a half-tooth flange head, a screw rod of the spherical bolt is provided with screw threads, and a circle of tool withdrawal grooves is arranged on the screw rod of the screw threads, and a special-shaped sealing ring is mounted in the tool withdrawal grooves.

[0008] A stepped surface is arranged on an inner wall of the special-shaped sealing ring, one end of the special-shaped sealing ring is a small opening end, and the other end is a large opening end, and the diameter of the large opening end is larger than that of the small opening end.

[0009] An end surface of the spike is provided with a beveled sharp shape, and the spike is specifically sleeved on the screw rod of the screw threads with the special-shaped sealing ring.

[0010] Compared with the prior art, the utility model has the beneficial effects that: after the spike is sleeved on the spherical bolt with the special-shaped sealing ring, on the one hand, the spherical arc structure can effectively reduce the friction between the spike belt and the ground when the spike belt is deployed, so that the traction device can quickly deploy the roadblock, and on the other hand, a strong damping force is generated between the special-shaped sealing ring and the spike, so as to meet the requirements of quickly puncturing the tire and separating from the spike belt, and the purpose of quickly deflating is achieved, so as to subdue the criminals. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the sectional view of the utility model.

[0012] Figure 2 It is the three-dimensional combined view of the utility model.

[0013] Figure 3 It is the three-dimensional view of Figure 2 .

[0014] Figure 4 It is the sectional view of the special-shaped sealing ring in the utility model.

[0015] Figure 5 It is the three-dimensional view of Figure 4 .

[0016] Figure 6 It is the schematic view of the spherical bolt in the utility model.

[0017] Figure 7 It is the three-dimensional view of Figure 6 .

[0018] In the drawing: 1, spherical bolt; 2, nut; 3, special-shaped sealing ring; 4, spike; 101, tool withdrawal groove; 301, small opening end; 302, large opening end; 303, step surface. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0020] The utility model is aimed at the defects that the existing vehicle blocking roadblock cannot quickly intercept and subdue the criminal in the emergency.

[0021] Please refer to Figures 1 to 3 , embodiment one, a spike device of vehicle blocking roadblock is composed of several spike assemblies which are combined in sequence and parallel connection, and constitutes a spike belt laid horizontally in the middle of the road, which is used for intercepting the motor vehicle driven by the criminal. The spike assembly comprises a spherical bolt 1, a nut 2 installed on the spherical bolt 1, and a spike 4 sleeved on the rod of the spherical bolt 1.

[0022] The head of the spherical bolt 1 is provided with a half-tooth flange head, and the spherical arc structure can effectively reduce the friction force between the nail belt and the ground when the nail belt is unfolded, so that the traction device can quickly unfold the spike belt roadblock and quickly intercept vehicles; the screw rod of the spherical bolt 1 is provided with a thread, the nut 2 cooperates with the thread, the nut 2 moves up and down on the screw rod, and a circle of tool withdrawal grooves 101 are arranged on the screw rod of the thread, a special-shaped sealing ring 3 is installed in the tool withdrawal grooves 101, and the special-shaped sealing ring 3 is invertedly buckled in the tool withdrawal grooves 101 and cooperates with the inner wall of the spike 4.

[0023] As shown in Figure 4 The inner wall of the special-shaped sealing ring 3 is provided with a stepped surface 303, one end of the special-shaped sealing ring 3 is a small opening end 301, the other end is a large opening end 302, and the caliber of the large opening end 302 is larger than that of the small opening end 301; the special-shaped sealing ring 3 is used for damping the sliding of the spike 4 on the spherical bolt, facilitating the spike 4 to quickly pierce the tire and be separated from the spike; when a pulling force of 30N is applied, the spike 4 cannot fall off under the action of the special-shaped sealing ring 3; when the pulling force is greater than 30N, the spike 4 should fall off, and when the pulling force is greater than 100N, the spike 4 immediately falls off, so that the effect of easy insertion and difficult extraction can be achieved; compared with the traditional O-shaped sealing ring, the special-shaped sealing ring needs a greater pulling force when being pulled out.

[0024] The end face of the spike 4 is provided with a beveled sharp shape, the spike 4 is specifically sleeved on the screw rod of the thread provided with the special-shaped sealing ring 3, and the height at which the spike 4 is sleeved on the screw rod depends on the connection of the nut 2 on the screw rod, and the nut 2 blocks the lower end of the spike 4.

[0025] The spike combination of the utility model is a single component, and must be assembled in parallel after a plurality of spike combinations to form a whole row of nail belts for use.

[0026] The utility model mainly solves the problem that in an emergency, a motor vehicle of a criminal can be quickly destroyed, and a dangerous person can be quickly subdued.

Claims

1. A spike device of a roadblock for stopping vehicles, which is composed of a plurality of spike assemblies connected in series, characterized in that, The spike assembly comprises a spherical bolt, a nut mounted on the spherical bolt, and a spike sleeved on the rod of the spherical bolt; The head of the spherical bolt is provided with a half-tooth flange head, the screw rod of the spherical bolt is provided with screw threads, the screw threads are provided with a circle of tool withdrawal grooves, and a special-shaped sealing ring is mounted in the tool withdrawal grooves.

2. A spike device for a roadblock according to claim 1, wherein The inner wall of the special-shaped sealing ring is provided with a step surface, one end of the special-shaped sealing ring is a small opening end, and the other end is a large opening end.

3. A spike device for a roadblock according to claim 1, wherein The end surface of the spike is provided with a beveled sharp shape, and the spike is specifically sleeved on the screw rod of the screw threads provided with the special-shaped sealing ring.

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