CN210363709U

CN210363709U - Large truck rear protective net

Info

Publication number: CN210363709U
Application number: CN201920641894.0U
Authority: CN
Inventors: 冯晓锋
Original assignee: Hunan Police Academy
Current assignee: Hunan Police Academy
Priority date: 2019-05-06
Filing date: 2019-05-06
Publication date: 2020-04-21
Anticipated expiration: 2029-05-06

Abstract

The utility model relates to the technical field of truck anti-collision, and discloses a large truck rear protective net, which comprises a box body, wherein the bottom wall surface of the box body is provided with three elongated holes, the back wall surface of the box body is provided with three square holes, the upper wall surface inside the box body is provided with three long grooves, the positions of the three long grooves are the same as the positions of the three elongated holes, the lengths of the three long grooves are sequentially lengthened from left to right, the long grooves are movably provided with square blocks, the lower parts of the square blocks are connected with connecting blocks, the side surfaces of the connecting blocks are provided with strip-shaped teeth, the large truck rear protective net is provided with sponge blocks and conical columns, when the tail part of a truck is in rear-end collision, the height of a car can only impact the sponge blocks, and the design of the sponge blocks can effectively prevent the car from directly drilling into the tail part of the truck when, causing greater damage and such a design prevents the occurrence of a rollover condition of the vehicle.

Description

Large truck rear protective net

Technical Field

The utility model relates to a freight train crashproof technical field specifically is protection network behind large-scale freight train.

Background

The large truck refers to a heavy truck and a medium truck, the heavy truck has a length of more than or equal to 6m, the total mass of more than or equal to 12000kg, the medium truck has a length of more than or equal to 6m, the total mass of more than or equal to 4500kg and less than 12000kg, and as the large truck has a large body shape, traffic accidents of the large truck easily occur during road running, for example, Chinese patent discloses an anti-collision device (patent number: CN205168412U) for the large truck Therefore, forward turning of the vehicle is easily caused, more harm is caused, and when a large truck runs at a high speed, the large truck generally runs on a slow lane on the right side, and a road is generally closed after rear-end collision occurs at the high speed, so that the travel plan of other people and the vehicle is easy to generate chain collision when the large truck is not separated in time after the rear-end collision occurs.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a to prior art's not enough, the utility model provides a protection network behind large-scale freight train possesses the front dump of effective prevention rear-end collision vehicle and prevents that rear-end collision vehicle from creeping into advantages such as freight train bottom, has solved the problem that rear-end collision vehicle turned over front.

(II) technical scheme

In order to realize that the preceding of above-mentioned effective prevention rear-end collision vehicle turns over and prevent that the rear-end collision vehicle from creeping into freight train bottom purpose, the utility model provides a following technical scheme: the utility model is characterized in that the front of the large truck is the rear of the narration, the rear of the large truck is the front of the narration, the truck comprises a box body, the box body is a rectangular box with a hollow inner part, a lug is arranged above the front wall and the rear wall of the box body, a hole is arranged on the lug, three long holes are arranged on the bottom wall of the box body, three square holes are arranged on the back wall of the box body, three long grooves are arranged on the inner wall above the box body, square blocks are movably arranged in the long grooves, the width of each square block is the same as that of each long groove, convex blocks are arranged on the left side and the right side of each square block, the length of each convex groove is the same as that of each square block, grooves on the left side and the right side of each long groove are respectively provided with grooves, the square blocks are movably connected with the grooves on the long grooves through the convex blocks, and connecting blocks are fixedly arranged on, the connecting block is characterized in that a strip-shaped tooth is arranged on the side wall of the right side of the connecting block, a connecting disc is fixedly installed on the wall surface of the inner bottom of the box body through a screw, the connecting disc is arranged on the right side of the connecting block, a cylindrical connecting column is installed on the wall surface of the upper side of the connecting disc, a bearing is installed on the connecting column through a clamp and a fixed device, a round column is installed on the outer shaft of the bearing through a welding fixed device, a round hole is formed in the bottom of the round column, a gear is installed on the wall surface of the upper side of the round column through a welding fixed device, a crawler belt is installed on the outer wall of the round column, a gear groove is formed in the crawler belt, an I-shaped column is fixedly installed on the inner wall surface of the inner bottom of the box body and is located on the right side, the crawler belt extends from the circular column to be connected to the cylindrical block of the I-shaped column, a bearing is fixedly mounted in the middle of the cylindrical block of the I-shaped column, the inner wall of the crawler belt is attached to the outer shaft of the bearing, the crawler belt can rotate on the circular column and the cylindrical block on the I-shaped column, a circular groove is formed in the bottom wall surface of the semi-cylindrical block at the front end of the connecting block, a rotating bearing is fixedly mounted in the circular groove at the bottom of the connecting block, the outer shaft of the rotating bearing is fixed with the circular groove at the bottom of the connecting block through welding, the inner shaft of the rotating bearing is fixedly mounted with the circular block through welding, a rotating gear is fixedly mounted on the bottom wall surface of the circular block through welding, the rotating gear corresponds to the position height of the crawler belt and is meshed with the gear groove of the crawler belt on the I-shaped column, and a conical column is fixedly mounted below the rotating, the outer surface of the conical column is fixedly provided with a sponge block, a conical hole is formed in the wall surface above the sponge block, and the conical hole in the sponge block is attached to the conical column.

Preferably, the elongated holes are rectangular openings, and the lengths of the three elongated holes are gradually longer from left to right

Preferably, the square holes are square openings, the positions of the three square holes correspond to the positions of the three long holes, and the three square holes are the same in size

Preferably, the three long grooves have the same size as the three elongated holes, the positions of the long grooves and the elongated holes correspond up and down, and the lengths of the three long grooves are sequentially increased from left to right

Preferably, the hole is circular, and the hole penetrates through upper and lower wall surfaces of the bump

Preferably, the gear is engaged with a rack gear

Preferably, the front end of the connecting block is semi-cylindrical, the rear end of the connecting block is rectangular, and the rear end of the connecting block is the same as the square hole in size.

(III) advantageous effects

Compared with the prior art, the utility model provides a large-scale freight train rear protection network possesses following beneficial effect:

1. this protection network behind large-scale freight train, through having set up the connecting block, highly can only striking the sponge piece of car in the time of owing to the striking, the sponge piece is struck and is moved forward and can drive the connecting block and move forward, the right side of connecting block is provided with the bar tooth, the bar tooth can drive gear and circular post rotatory left, drive the running gear through the track and rotate, running gear drives toper post and sponge piece and moves right, when the car striking, an instant strength can make the sponge piece explode in an instant and send the rotatory strength in right side and make the striking vehicle turn to, because the freight train is generally in the right side lane at high speed, so to the strength of dextrorotation can let the car turn to emergency vehicle way right, reduce the damage of bigger personnel and property.

2. This protection network behind large truck through having set up and sponge piece and toper post, when the afterbody of freight train takes place to collide with the tail, the sponge piece can only be strikeed to the height of car, and when the design of sponge piece can effectually prevent car from knocking with the tail large truck, the afterbody of freight train is directly bored to the car, causes bigger damage and such design to have prevented that the forward-tipping situation of car from taking place.

3. This big or small freight train rear protection network, through setting up the elongated hole, because the length in elongated hole is different, when receiving the striking, the rear inner wall in the impact elongated hole of elongated hole through the sponge piece limits the distance that the connecting block promoted backward, all strikes the elongated hole when all sponge pieces, and the sponge piece can be put out by the angle of left to right slope, and the rotation of sponge piece can let the car that knocks into the back more steady turn to in the cooperation like this, will knock into the leading-in emergent lane of car.

Drawings

Fig. 1 is a three-dimensional main body schematic diagram of a truck protection net;

FIG. 2 is a perspective main body schematic view of the bottom surface of a truck protective net;

FIG. 3 is a right side sectional view of a truck protection net mounted to the back of a truck;

FIG. 4 is a perspective view of the connecting block;

FIG. 5 is a perspective main view of a sponge block;

FIG. 6 is a cross-sectional side view of the i-post and track;

FIG. 7 is a cross-sectional side view of the connector block;

fig. 8 is a sectional view of the top of the case.

In the figure: the device comprises a box body 1, a convex block 2, a sponge block 3, a conical column 4, a hole 5, a long hole 6, a connecting disc 7, a circular column 8, a gear 9, a square hole 10, a crawler 11, a strip-shaped tooth 12, a connecting block 13, a circular block 14, a long groove 15, an I-shaped column 16, a rotating gear 17 and a square block 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-8, a large truck rear protective net, the front of the large truck of the present invention is a narrative rear, the rear of the large truck is a narrative front, including a box body 1, the box body 1 is a rectangular box with a hollow interior, a convex block 2 is disposed above the front and rear walls of the box body, a hole 5 is disposed on the convex block 2, the hole 5 is circular, the hole 5 penetrates the upper and lower walls of the convex block 2, the hole 5 can cooperate with a screw to fix the box body 1 at the rear of the large truck, three elongated holes 6 are disposed on the bottom wall of the box body 1, the elongated holes 6 are rectangular openings, the length of the three elongated holes 6 is gradually increased from left to right, three square holes 10 are disposed on the back wall of the box body 1, the square holes 6 are square openings, the positions of the three square holes 10 correspond to the positions of the three elongated holes 6, and the size of the three, three elongated slots 15 are formed in the inner wall of the upper portion of the box body 1, the size of each elongated slot 15 is the same as that of each elongated hole 6, the positions of the elongated slots 15 and the positions of the elongated holes 6 correspond to each other up and down, the length of each elongated slot 15 is sequentially increased from left to right, square blocks 18 are movably mounted in the elongated slots 15, each square block 18 is a square block, the width of each square block 18 is the same as that of each elongated slot 15, protruding blocks are formed in the left side and the right side of each square block 18, the length of each protruding block is the same as that of each square block 18, grooves are formed in the left side wall and the right side wall of each elongated slot 15 respectively, the length of each two grooves is the same as that of each elongated slot 15, each square block 18 is movably connected with the groove in each elongated slot 15 through each protruding groove, a connecting block 13 is fixedly mounted on the bottom wall surface of each, the rear end of connecting block 13 is the same with quad slit 10 size, and the rear end of connecting block 13 can stretch out the inside of box 1 through quad slit 10, bar tooth 12 has been seted up on the right side lateral wall of connecting block 13, bar tooth 12 is a set of gear groove, through screw fixed mounting connection pad 7 on the inside bottom wall of box 1, connection pad 7 is right-hand at connecting block 13, and connection pad 7 is circular piece, install the columniform spliced pole on the top wall of connected pad 7, cross card and fixed mounting on the spliced pole and have the bearing, the outer axle of bearing has circular post 8 through welded fastening, circular post 8 is columniform, and circular hole has been seted up to the bottom of circular post 8, the outer axle laminating of circular hole size and bearing, circular post 8 is in the same place through the outer axle welding of the circular hole in bottom and the bearing, and circular post 8 can rotate on connection pad 7, the upper wall surface of the circular column 8 is fixedly provided with a gear 9 through welding, the gear 9 is meshed with a strip-shaped tooth 12, the outer wall of the circular column 8 is provided with a crawler belt 11, the crawler belt 11 is provided with a gear groove, the inner wall of the inner bottom of the box body 1 is fixedly provided with an I-shaped column 16, the I-shaped column 16 is positioned at the right side of the connecting block 13, the I-shaped column 16 is I-shaped formed by combining two circular blocks and a cylindrical block, the bottom of the I-shaped column 16 is fixedly arranged on the inner wall surface of the box body 1 through welding, the crawler belt 11 extends from the circular column 8 to be connected to the cylindrical block of the I-shaped column 16, a bearing is fixedly arranged in the middle of the cylindrical block of the I-shaped column 16, the inner wall of the crawler belt 11 is attached to the outer shaft of the bearing, and the crawler belt 11 can rotate on the cylindrical blocks on, the front end of the connecting block 13 is a semi-cylindrical block, the rear end of the semi-cylindrical block is a rectangular block, a circular groove is formed in the bottom wall surface of the semi-cylindrical block at the front end of the connecting block 13, a rotating bearing is fixedly installed in the circular groove at the bottom of the connecting block 13, an outer shaft of the rotating bearing is fixed with the circular groove at the bottom of the connecting block 13 through welding, a circular block 14 is fixedly installed on an inner shaft of the rotating bearing through welding, the circular block 14 is a cylindrical block, a rotating gear 17 is fixedly installed on the bottom wall surface of the circular block 14 through welding, the rotating gear 17 corresponds to the position height of the crawler belt 11, the rotating gear 17 is meshed with a gear groove of the crawler belt 11 on the I-shaped column 16, a conical column 4 is fixedly installed below the rotating gear 17 through welding, the conical column 4 is conical, and a sponge block 13 is fixedly installed on the outer surface of the conical column 4, the sponge piece 13 is cylindrical, has seted up conical hole on the top wall of sponge piece 13, and conical hole and the laminating of toper post 4 on the sponge piece 13, the diameter ratio of toper post 4 and sponge piece 13 is five centimetres narrower than the width in slot 6, and toper post 4 and sponge piece 13 extend to the below of box 1 through slot 6 always, because slot 6's length is different, when receiving the striking, slot 6 limits the distance that connecting block 13 promoted backward through the rear inner wall in slot 6 of the striking of sponge piece 3, when all strikeed the rear lateral wall in slot 6 when sponge piece 3, sponge piece 3 can be swung out by the angle of left to right slope.

When in use:

the first step is as follows: the box body 1 is fixedly arranged at the tail part of the large truck by using holes 5 in the convex blocks 2 and matching screws.

The second step is that: when the freight train afterbody receives the striking, because the freight train afterbody height is higher, so can strike sponge piece 3 on, sponge piece 3 will promote connecting block 13 rearward movement.

The third step: due to the backward movement of the connecting block 13, the connecting block 13 pushes the gear 9 and the circular column 8 to rotate left, and the left rotation of the circular column 8 drives the track 11 to rotate left.

The fourth step: the left rotation of the caterpillar band 11 will drive the rotating gear 17 to rotate to the right, and the connecting gear 17 will drive the conical column 4 and the sponge block 3 to rotate to the right.

The fifth step: when the rear inner wall of three rectangular hole 6 of striking of three sponge piece 3, because the length in three rectangular hole 6 differs, the length in rectangular hole 6 is from left to right longer more and more, so rectangular hole 6 is used for restricting the distance that connecting block 13 promoted backward, all strikeing rectangular hole 6 when all sponge pieces 3, sponge piece 3 can be swung out by the angle of left to right slope, will put out a direction track from left to right like this, let the rear end-collision vehicle skew right.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Big freight train rear protection network, including box (1), its characterized in that: the improved structure of the automobile door is characterized in that convex blocks (2) are arranged above the front wall surface and the rear wall surface of the box body, a long hole (6) is formed in the bottom wall surface of the box body (1), a square hole (10) is formed in the back wall surface of the box body (1), a long groove (15) is formed in the upper inner wall surface of the box body (1), a square block (18) is movably mounted in the long groove (15), a connecting block (13) is fixedly mounted on the bottom wall surface of the square block (18) through welding, a strip-shaped tooth (12) is formed in the right side wall surface of the connecting block (13), a connecting disc (7) is fixedly mounted on the inner bottom wall surface of the box body (1) through a screw, the connecting disc (7) is arranged on the right side of the connecting block (13), a cylindrical connecting column is mounted on, the top wall of circular post (8) has gear (9) through welded fastening, install track (11) on the outer wall of circular post (8), fixed mounting has worker shape post (16) on the inside bottom inner wall of box (1), and worker shape post (16) are located the right side of connecting block (13), track (11) extend always to be connected to on the columniform piece of worker shape post (16) from circular post (8), the below swing joint rotating gear (17) of connecting block (13), rotating gear (17) below fixed mounting toper post (4).

2. The large truck rear protection net according to claim 1, characterized in that: the left side and the right side of the square block (18) are provided with convex blocks, and the side walls of the left side and the right side of the elongated slot (15) are respectively provided with grooves.

3. The large truck rear protection net according to claim 1, characterized in that: the H-shaped column (16) is formed by combining two circular blocks and a cylindrical block, a bearing is fixedly arranged in the middle of the cylindrical block of the H-shaped column (16), the inner wall of the crawler belt (11) is provided with the bearing, and the inner wall of the crawler belt (11) is attached to the outer shaft of the bearing.

4. The large truck rear protection net according to claim 1, characterized in that: the lug (2) is provided with a hole (5).

5. The large truck rear protection net according to claim 1, characterized in that: the rotating gear (17) corresponds to the position height of the crawler belt (11), and the rotating gear (17) is meshed with a gear groove of the crawler belt (11) on the H-shaped column (16).

6. The large truck rear protection net according to claim 1, characterized in that: and a sponge block (3) is fixedly arranged on the outer surface of the conical column (4).