CN101994299B - Unpowered stretching mechanism - Google Patents

Abstract

The invention relates to a net stretching mechanism in a vehicle flexible interception device, a non-powered net stretching mechanism, which includes a driving box, a guide rail, a guide pulley assembly, a slider, a pin puller, a netting mechanism, a controller and a base. The guide rail (2) is installed on the base (6), the driving box (4) is fixedly connected under the guide rail, the guide pulley assembly (1) is installed on the upper end of the guide rail, and the slider (10) can slide freely on the surface of the guide rail. The surface of the slider (10) is equipped with a detachment mechanism (7), and the pin puller (9) passes through the guide rail body and is fixed below the guide rail. In places with small operating space, it can especially meet the actual combat needs of field deployment and provide a guarantee for efficient interception of suspect vehicles.

Description

No power tensioning mechanism

technical field

The invention relates to a net stretching mechanism in a vehicle flexible interception device, in particular to a mechanism capable of quickly springing up and deploying a flexible interception net without a power source.

Background technique

The vehicle interception device is a special device that uses coercive means to force passing vehicles to stop driving, and is a common means of intercepting suspected vehicles. There are various products capable of intercepting vehicles with different functions. Among them, the flexible interception device is a more reasonable and humanized vehicle interception system, which can effectively intercept suspected vehicles without damaging the vehicle and causing no harm to the driver and passengers.

The rapid and comprehensive opening of the flexible interception net after being triggered by the remote control is a prerequisite for effective control of the suspected vehicle. In the current design, the net stretching mechanism usually adopts motor drive, pneumatic drive or hydraulic drive to complete the opening action of the intercepting net. Motor-driven mechanisms require a DC or AC power supply that provides sufficient energy for the motor; pneumatic and hydraulically driven mechanisms require pneumatic or hydraulic components that form the circuit. The netting mechanism of the above-mentioned driving method can only be installed at the door of a building equipped with a power supply or a temporary card point, and is not applicable to the needs of emergency field deployment tasks. These driving methods have complex structures, cumbersome installation steps, and are limited by the environment and terrain. When there is not enough power supply, the netting mechanism will fail.

Contents of the invention

The purpose of the present invention is to provide a non-power stretching mechanism to improve the technical difficulty in the current existing structure that the stretching mechanism fails due to lack of a power source. The mechanism has a simple structure and adopts a spring-driven method. After receiving the trigger signal, the flexible interception net springs up and unfolds instantly, enveloping the front of the out-of-control vehicle at the first time, making preparations for the effective interception of the vehicle interception device.

In conjunction with the accompanying drawings, the description is as follows:

An unpowered netting mechanism, comprising a drive box, a guide rail, a guide pulley assembly, a slider, a pin puller, a netting mechanism, a controller and a base, the guide rail 2 is installed on the base 6, and the drive box 4 is fixed on the Below the guide rail, a guide pulley assembly 1 is installed on the upper end of the guide rail. The slider 10 can slide freely on the surface of the guide rail. The pin puller 9 passes through the guide rail body and is fixed below the guide rail. The net-off mechanism 7, the net-off mechanism 7 is a vertical plate with a U-shaped plate fixed on one side, and a guide pin 76 and the elastic pressing assembly pressed thereon are fixed on the U-shaped plate of the net-off mechanism 7, and the flexible interception net 8. Hang in the space surrounded by the guide pin 76 and the elastic pressing assembly. There is a horizontal through hole under the vertical plate of the denetting mechanism 7. The pin puller limit pin 96 passes through the guide rail 2 and rests on the horizontal through hole; There is a vertical through hole above the U-shaped plate of the netting mechanism 7, and one end of the connecting rope 57 is locked on the vertical through hole, and the other end bypasses the guide pulley assembly 1 and is connected on the energy storage device driven without power in the drive box 4.

The elastic pressing assembly on the de-netting mechanism includes a bolt 73, a spring 72, a pin shaft 75 and a rolling bearing 74, and the rolling bearing 74 is pressed on the guide pin 76 under the action of the spring force.

The energy storage device in the drive box 4 is a rotating turntable assembly, including a scroll spring 54, a rotating turntable 55, a turntable cover plate 51 and a central shaft 56, and a rolling bearing 53 is housed inside the scroll spring 54. There are several spacers 52, which are sleeved on the central shaft 56. One end of the central shaft has an eccentric groove, and the other end has turbine teeth. There is a through hole leading to the inside, the connecting rope 57 is locked on the through hole and wound on the rotating turntable, and the rotating turntable 55 and the turntable cover plate 51 are locked by bolts; the energy storage device also includes a worm (5).

The guide pulley assembly 1 includes a pulley seat 15 and two sets of pulley assemblies; the side plate of the pulley seat has a coaxial through hole, and the pulley assembly includes a pulley 13, a pin shaft 14, a rolling bearing 12 and a snap ring 11; the rolling bearing 12 snaps Sleeved on the pin shaft 14 and installed on the inside of the pulley simultaneously, the pulley assembly passes through the through hole of the pulley seat, and the jump ring 11 limits the lateral movement of the pin shaft.

The pin puller 9 includes a limit pin 96, an electromagnet 93, an armature 94, and a guide sleeve 95. The guide sleeve 95 passes through the body below the guide rail 2, and the limit pin 96 and the electromagnet armature 94 Fixed connection, through the guide sleeve.

Beneficial effects of the present invention:

The non-powered net stretching mechanism provided by the present invention can pre-compress the scroll spring to accumulate energy, and when a control signal is issued, the elastic energy is released to drive the flexible intercepting net to bounce and unfold. The non-powered netting mechanism provided by the present invention can be applied in places where there is no sufficient power supply and the operating space is small, and it can especially meet the actual combat requirements of field deployment and provide a guarantee for efficient interception of suspect vehicles.

Description of drawings

Fig. 1: the schematic diagram of the appearance of the unpowered stretching mechanism embodiment of the present invention to be worked;

Fig. 2: a schematic diagram of the appearance of the embodiment of the non-powered netting mechanism of the present invention when it is working;

Fig. 3: The three-dimensional exploded schematic view of the guide pulley assembly in the embodiment of the unpowered netting mechanism of the present invention;

Fig. 4: a three-dimensional exploded schematic view of the driving box in the embodiment of the unpowered netting mechanism of the present invention;

Fig. 5: The three-dimensional schematic diagram of the de-netting mechanism in the embodiment of the non-powered netting mechanism of the present invention;

Fig. 6: A three-dimensional exploded schematic diagram of the pin puller in the embodiment of the non-powered tensioning mechanism of the present invention.

In the figure: 1. Guide pulley assembly 2. Guide rail 3. Ear seat 4. Drive box 5. Worm 6. Base 7. Detachment mechanism 8. Flexible interception net 9. Pin puller 10. Slider 11. Circlip 12 , rolling bearing 13, pulley 14, pin shaft 15, pulley seat 41, square box 42, side plate I 43, rear cover plate 44, upper cover plate 45 side plate II 46, front cover plate 47, lower cover plate 51, turntable cover Plate 52, gasket 53, rolling bearing 54, scroll spring 55, rotating turntable 56, center shaft 57, connecting rope 71, U-shaped plate 72, spring 73, adjusting bolt 74, rolling bearing 75, pin shaft 76, guide pin 91, Upper cover plate 92, installation box

Detailed ways

The present invention is further illustrated below by way of examples. See Figures 1 and 2. The non-powered tensioning mechanism includes a driving box 4, a guide rail 2, a guide pulley assembly 1, a slider 10, a pin puller 9, an off-net mechanism 7, a controller and a base 6. The guide rail 2 is installed on the base 6 through the two lug seats 3, the driving box 4 is connected under the guide rail, the guide pulley assembly 1 is installed on the upper end of the guide rail, the slider 10 can slide freely on the surface of the guide rail, and the slider surface is installed There is an off-network mechanism 7, and the pin puller 9 passes through the guide rail body and is fixed below the guide rail.

As shown in Figure 3, the guide pulley assembly includes: a pulley seat and two sets of pulley assemblies. There are coaxial through holes on the pulley seat 15 side plates. The pulley assembly includes a pulley 13, a pin shaft 14, a rolling bearing 12 and a snap ring 11. The rolling bearing 12 is clipped on the pin shaft 14 and installed inside the pulley 13 at the same time. The pulley assembly passes through the through hole of the pulley seat, and the snap spring 11 limits the lateral movement of the pin shaft 14 .

As shown in FIG. 4 , the driving box 4 includes: a housing, a hollow body composed of six cover plates, and the cover plates are locked by bolts. There is a square box 41 on the side plate 142, and a through hole is arranged on the side plate of the square box for installing the worm screw 5. There are hollow joints on the cover plates on both sides of the housing, the upper cover plate 44 has obliquely elongated holes, and the front and rear cover plates 46, 43 have square holes.

A central shaft 56, the two ends of the central shaft 56 are installed on the hollow connecting parts of the cover plates on both sides of the casing, one end of the central shaft has an eccentric groove, and the other end has turbine gear teeth.

A worm 5 is used in conjunction with the worm gear on the center shaft to adjust the preload of the scroll spring.

A rotating turntable assembly includes a scroll spring 54 , a rotating turntable 55 and a turntable cover 51 . Rolling bearing 53 is housed inside the scroll spring, and some gaskets 52 are sleeved on the central shaft and rotate the inner side of the turntable. The edge of the rotating turntable has a through hole leading to the inside, and the rotating turntable and the cover plate of the turntable are locked by a set of bolts, nuts and washers distributed around it.

A high-strength material connecting rope 57 is wound on the rotating turntable, and one end passes through the through hole of the rotating turntable and is locked with a nut to prevent the connecting rope from pulling out. The other end is connected to the off-grid mechanism.

As shown in Figure 5, the denetting mechanism includes: a U-shaped plate, the upper end of the U-shaped plate 71 has a vertical through hole, and the connecting rope 57 passes through the through hole and is locked with a nut; the bottom has a horizontal through hole, and the pin puller is limited The pin 96 passes through the guide rail and can lean against the horizontal through hole of the U-shaped plate to limit the vertical movement of the decoupling mechanism.

A guide pin 76 , an elastic pressing assembly, the elastic pressing assembly includes an adjusting bolt 73 , a spring 72 , a pin shaft 75 and a rolling bearing 74 . Rolling bearing 74 is pressed on the guide pin 76 under the effect of spring force. Open the elastic compression assembly, and hang the flexible interception net 8 into the space surrounded by the guide pin and the compression assembly.

As shown in Figure 6, the pin puller includes: an installation box 92, a limit pin 96, an electromagnet assembly, a guide sleeve 95, the guide sleeve 95 passes through the body below the guide rail, the limit pin 96 and The electromagnet armature 94 is fixedly connected and passes through the guide sleeve. When the electromagnet is energized, the armature moves close to the electromagnet under the action of the magnetic force, and the limit pin is driven to disengage from the horizontal through hole on the U-shaped plate of the tripping mechanism, releasing the tripping mechanism.

The controller includes: a waterproof casing, a DC battery, a remote control receiver and a remote controller.

The connecting rope 57 that the drive box draws bypasses the guide pulley assembly and is connected on the mesh-off mechanism 7, and the mesh-off mechanism 7 is fixedly connected with the slide block 10. When preparing to intercept the vehicle, pull the slide block to the bottom of the guide rail to ensure that the limit pin 96 rests on the horizontal through hole of the U-shaped plate of the de-netting mechanism. At this time, the scroll spring 54 in the drive box is compressed, and the accumulated elasticity energy. When the suspected vehicle approaches, the control button of the remote controller is pressed, and the electromagnet pulls the spacer pin 96 to release the off-grid mechanism. The elastic energy that has lost its limit is also released at this time, and the rotating turntable is rotated to wind the connecting rope. The connecting rope drives the de-netting mechanism 7 and the slide block 10 to move upwards along the guide rail, so as to realize the bounce and deployment of the flexible intercepting net.

Claims (4)

1. A non-powered netting mechanism, comprising a drive box, a guide rail, a guide pulley assembly, a slide block, a pin puller, an off-net mechanism, a controller and a base, and the guide rail (2) is installed on the base (6), The driving box (4) is fixedly connected under the guide rail, the guide pulley assembly (1) is installed on the upper end of the guide rail, the slider (10) can slide freely on the surface of the guide rail, the pin puller (9) passes through the guide rail body, and Below the guide rail, it is characterized in that: the surface of the slide block (10) is equipped with an off-network mechanism (7), and the off-network mechanism (7) is a vertical plate with a U-shaped plate fixed on one side, and a guide pin (76 ) and the elastic compression assembly pressed thereon are fixed on the U-shaped plate of the de-netting mechanism (7), and the flexible interception net (8) is hung into the space surrounded by the guide pin (76) and the elastic compression assembly, and the detachment There is a horizontal through hole below the vertical plate of the net mechanism (7), and the pin puller stop pin (96) passes through the guide rail (2) and leans against the horizontal through hole; Vertical through hole, one end of connecting rope (57) is locked on the vertical through hole, and the other end bypasses the guide pulley assembly (1) and is connected on the energy storage device driven by no power in the drive box (4); The energy device is a rotating turntable assembly, including a scroll spring (54), a rotating turntable (55), a turntable cover plate (51) and a central axis (56), and the scroll spring (54) is equipped with rolling bearings ( 53), several gaskets (52) are sleeved on the central shaft (56), one end of the central shaft has an eccentric groove, and the other end has turbine teeth, and the two ends of the scroll spring are respectively connected to the central shaft eccentric groove and On the inner side of the rotating turntable, the edge of the rotating turntable has a through hole leading to the inside, the connecting rope (57) is locked on the through hole and wound on the rotating turntable, and the rotating turntable (55) and the turntable cover plate (51) are locked by bolts; The energy storage device also includes a worm (5). 2. A kind of non-power tensioning mechanism according to claim 1, characterized in that the elastic pressing assembly on the de-netting mechanism includes a bolt (73), a spring (72), a pin shaft (75 ) and a rolling bearing (74), the rolling bearing (74) is pressed on the guide pin (76) under the effect of spring force. 3. A kind of unpowered stretching mechanism according to claim 1, characterized in that the guide pulley assembly (1) includes a pulley seat (15) and two sets of pulley assemblies; the side plate of the pulley seat has a coaxial The wire through hole, the pulley assembly includes a pulley (13), pin shaft (14), rolling bearing (12) and snap ring (11); Part passes through the through hole of the pulley seat, and the jump ring (11) limits the lateral movement of the bearing pin. 4. A non-powered netting mechanism according to claim 1, characterized in that said pin puller (9) comprises a limit pin (96), an electromagnet (93), an armature (94) 1. A guide sleeve (95), the guide sleeve (95) passes the guide rail (2) lower body, and the stop pin (96) is fixedly connected with the electromagnet armature (94), and passes the guide sleeve (95).

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