Side protection structure of self-dumping semitrailer

Abstract

The utility model relates to the technical field of semitrailer side protection, in particular to a self-dumping semitrailer side protection structure which comprises a frame and a side box door, a first buffering cushion is installed on the side wall of the end, close to the side box door, of the frame, and fixing blocks are symmetrically arranged on the two sides of the first buffering cushion. The first buffer pad mounted on the side wall of one end of the frame can protect the side box door along with the frame when the side box door descends, so that the side box door is prevented from being in direct contact with the frame, one end of the guide block is slidably mounted in the guide groove, a guide effect can be achieved when the buffer block moves, and the second buffer pad on the inner wall of the fixed block can prevent the side box door from moving. The buffer block is arranged on the side box door so as to prevent the side box door from being in direct contact with the fixing block, the friction force between the side box door and the buffer block can be increased through the rubber pad installed on the abutting arc face, then the buffer protection effect on the side box door is good under the elastic effect of the buffer spring, and then the impact force borne by the frame when the side box door rotates and descends is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of semitrailer side protection, in particular to a self-unloading semitrailer side protection structure. BACKGROUND

[0002] The semitrailer is a trailer with an axle placed behind the center of gravity of the vehicle and a coupling device capable of transmitting horizontal and vertical forces to the towing vehicle, and is a heavy transport vehicle connected to the semitrailer head through a draw pin. The self-unloading semitrailer is suitable for transporting bulk and scattered goods such as coal, ore and building materials. The carriage adopts a side and rear unloading mode, which can effectively load and unload bulk and scattered goods.

[0003] In the prior art, in order to prevent the impact force of the falling side box door from damaging the frame when the side box door rotates downward, a rubber buffer pad is usually used for protection on the side of the frame. However, the effect of the rubber pad is poor, and the frame will still be subjected to a large impact force when the side box door rotates downward. UTILITY MODEL CONTENTS

[0004] The utility model aims to provide a self-unloading semitrailer side protection structure to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a self-unloading semitrailer side protection structure, comprising: a frame and a side box door, a first buffer pad is installed on the end wall of the frame close to the side box door, two fixed blocks are symmetrically arranged on the two sides of the first buffer pad, and a buffer block is slidably connected to the end of each fixed block close to the first buffer pad.

[0006] A limiting plate is installed at the end of each buffer block away from the first buffer pad, a limiting groove is formed at the end of each fixed block close to the adjacent limiting plate, a buffer spring is installed in each limiting groove, an abutting arc surface is formed at the end of each buffer block away from the frame, and a rubber pad is installed on the surface of each abutting arc surface.

[0007] A guide groove is formed in the inner wall of the end of each fixed block, a guide block is connected to the end of each buffer block close to the guide groove, and a second buffer pad is arranged on the surface of each fixed block close to the adjacent guide groove.

[0008] Preferably, each fixed block is L-shaped, an installation lug plate is fixedly connected to the end wall of each fixed block, an installation bolt is connected between each installation lug plate and the frame, and an installation hole is formed in the surface of each installation lug plate close to the adjacent installation bolt.

[0009] Preferably, the two limiting plates are slidingly installed in the adjacent limiting grooves, one end of the two limiting plates is fixedly connected with the adjacent buffer blocks, and the other end of the two limiting plates is uniformly fixedly installed with three buffer springs, and one end of each buffer spring is fixedly installed on the inner wall of the adjacent limiting groove.

[0010] Preferably, the two buffer blocks slidingly extend out of the adjacent limiting grooves at one end close to the adjacent abutting arc surfaces, and the surfaces of the two abutting arc surfaces are fixedly connected with the adjacent rubber pads.

[0011] Preferably, two guide blocks are fixedly installed at one end of the two buffer blocks close to the vehicle frame, two communication holes are formed in the inner walls of the two adjacent guide grooves close to the two limiting grooves, and one end of each communication hole is in communication connection with the adjacent guide groove.

[0012] Preferably, each guide block is T-shaped, one end of each guide block is slidingly connected with the inner wall of the adjacent guide groove, and a plurality of balls are rotatably installed at the top end and the bottom end of each guide block inside the guide groove, and each ball is rollingly connected with the inner wall of the adjacent guide groove.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] The first buffer pad installed on the side wall of the vehicle frame can protect the vehicle frame when the side box door is lowered, so that the side box door and the vehicle frame are not directly contacted, the one end of the guide block is slidingly installed in the guide groove, so that the guide effect is achieved when the buffer block moves, the second buffer pad on the inner wall of the fixed block prevents the side box door from being directly contacted with the fixed block, the rubber pad installed on the abutting arc surface can increase the friction force between the side box door and the buffer block, so that the buffer protection effect of the side box door is better under the elastic effect of the buffer spring, and the impact force of the vehicle frame when the side box door rotates and descends is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure perspective view of the utility model;

[0016] Figure 2 It is a fixed block structure perspective sectional view of the utility model;

[0017] Figure 3 It is a fixed block structure perspective sectional view of the utility model; Figure 1 It is an enlarged schematic view of the structure at A in the utility model;

[0018] Figure 4 It is a local structure explosion schematic view of the utility model.

[0019] In the figure: 1, frame; 2, side box door; 3, first buffer pad; 4, fixed block; 5, second buffer pad; 6, buffer block; 7, abutting camber; 8, rubber pad; 9, limiting groove; 10, buffer spring; 11, limiting plate; 12, guide block; 13, ball; 14, guide groove; 15, communication hole; 16, mounting lug plate; 17, mounting bolt; 18, mounting hole. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme of the utility model to carry out clearly, complete description, and the advantage is more clear and distinct, the following combining with the figure to the utility model embodiment carries out further detailed explanation. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all embodiments, only to explain the embodiments of the utility model, and not for limiting the embodiments of the utility model, all other embodiments obtained by the ordinary skill in the art without doing creative work under the premise, belong to the scope of the utility model protection.

[0021] Please refer to Figures 1 to 4 The utility model provides a kind of technical scheme: a self-unloading semi-trailer side protection structure, comprising: frame 1 and side box door 2, first buffer pad 3 is installed in the end side wall of frame 1 close to side box door 2, two sides of first buffer pad 3 are symmetrically provided with fixed block 4, two fixed blocks 4 are close to the end of first buffer pad 3 and are slidably connected with buffer block 6, the bottom of one end of side box door 2 and frame 1 are hinged connection, and first buffer pad 3 is fixedly installed on frame 1;Two fixed blocks 4 are L-shaped, and the end side wall of two fixed blocks 4 is fixedly connected with mounting lug plate 16, mounting bolt 17 is connected between each mounting lug plate 16 and frame 1, and mounting hole 18 is formed in the surface of each mounting lug plate 16 close to adjacent mounting bolt 17, and each mounting lug plate 16 is detachably installed on frame 1 by mounting bolt 17, so that fixed block 4 can be disassembled by mounting bolt 17.

[0022] Two buffer blocks 6 are away from the end of the first buffer pad 3 are equipped with a limit plate 11, two fixed blocks 4 are close to the end of the adjacent limit plate 11 are equipped with a limit slot 9, the inside of two limit slots 9 are equipped with a buffer spring 10, two buffer blocks 6 are away from the end of the frame 1 are equipped with an abutment arc surface 7, the surface of two abutment arc surfaces 7 are equipped with a rubber pad 8; Two limit plates 11 are slidingly installed in the adjacent limit slot 9, one end of two limit plates 11 are fixedly connected with the adjacent buffer block 6, the other end of two limit plates 11 are uniformly fixedly installed with three buffer springs 10, one end of each buffer spring 10 is fixedly installed on the inner wall of the adjacent limit slot 9, so as to facilitate the reduction of the impact force of the side box door 2. The end of two buffer blocks 6 close to the adjacent abutment arc surface 7 slidingly extends out of the adjacent limit slot 9, the surface of two abutment arc surfaces 7 are fixedly connected with the adjacent rubber pad 8, which can increase the friction between the side box door 2 and the buffer block 6, and can avoid direct contact between the side box door 2 and the buffer block 6, further enhancing the buffering effect on the side box door 2.

[0023] The end of the inner wall of two fixed blocks 4 is equipped with a guide slot 14, two buffer blocks 6 close to the end of the guide slot 14 are connected with a guide block 12, and the surface of two fixed blocks 4 close to the adjacent guide slot 14 is provided with a second buffer pad 5. Two buffer blocks 6 close to the end of the frame 1 are fixedly installed with two guide blocks 12, the inner wall of two limit slots 9 close to the adjacent two guide slots 14 is equipped with two communication holes 15, one end of each communication hole 15 is connected with the adjacent guide slot 14, so that when the limit plate 11 and the buffer block 6 move into the limit slot 9, the guide block 12 can move along the direction of the guide slot 14 and synchronously with the buffer block 6. Each guide block 12 is T-shaped, one end of each guide block 12 is slidingly connected with the inner wall of the adjacent guide slot 14, and a plurality of ball bearings 13 are rotatably installed at the top and bottom of each guide block 12 inside the guide slot 14, each ball bearing 13 is rollingly connected with the inner wall of the adjacent guide slot 14, which can improve the smoothness of the movement of the guide block 12.

[0024] When the device works, when the rotating descending side box door 2, through the first buffer pad 3 installed on one end side wall of the frame 1, the side box door 2 can be protected with the frame 1 when descending, so as to avoid the direct contact between the side box door 2 and the frame 1, through the sliding installation of one end of the guide block 12 in the guide groove 14, the guide effect can be played when the buffer block 6 moves, the stability of the buffer block 6 is improved, through the second buffer pad 5 on the inner wall of the fixed block 4, the direct contact between the side box door 2 and the fixed block 4 can be avoided, and the buffering protection effect of the side box door 2 is further strengthened, when the edge of the side box door 2 and the abutting arc surface 7 abut, the buffer block 6 is extruded into the limiting groove 9, at this time, the buffer spring 10 is in the compressed state, through the rubber pad 8 installed on the abutting arc surface 7, the friction between the side box door 2 and the buffer block 6 can be increased, and then the impact of the side box door 2 can be reduced under the elastic effect of the buffer spring 10, so that the buffering protection effect of the side box door 2 is better, and the impact force of the frame 1 when the side box door 2 rotates and descends is reduced.

[0025] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and its equivalents.

Claims

1. A side protection structure for a self-discharging semi-trailer, comprising: The utility model relates to a vehicle frame (1) and side box door (2), its characterized in be: the first buffer pad (3) is installed to the end side wall of vehicle frame (1) near side box door (2), the both sides symmetry of first buffer pad (3) are provided with fixed block (4), and the end of two fixed blocks (4) near first buffer pad (3) is slidably connected with buffer block (6); The end of two buffer blocks (6) away from first buffer pad (3) is installed with limiting plate (11), and the end of two fixed blocks (4) near adjacent limiting plate (11) is provided with limiting slot (9), and the inside of two limiting slots (9) is installed with buffer spring (10), and the end of two buffer blocks (6) away from vehicle frame (1) is provided with abutting camber (7), and the surface of two abutting cambers (7) is installed with rubber pad (8); The inner wall of the end of two fixed blocks (4) is provided with guide slot (14), and the end of two buffer blocks (6) near guide slot (14) is connected with guide block (12), and the surface of two fixed blocks (4) near adjacent guide slot (14) is provided with second buffer pad (5).

2. A side protection structure for a self-unloading semi-trailer according to claim 1, characterized in that: Two fixed blocks (4) are L-shaped, and mounting lug plates (16) are fixedly connected to the end side walls of the two fixed blocks (4), mounting bolts (17) are connected between each mounting lug plate (16) and the vehicle frame (1), and mounting holes (18) are formed in the surface of each mounting lug plate (16) near the adjacent mounting bolt (17).

3. The side protection structure of a self-unloading semitrailer according to claim 1, characterized in that: Two limiting plates (11) are slidably installed in adjacent limiting slots (9), and one end of two limiting plates (11) is fixedly connected with adjacent buffer blocks (6), and the other end of two limiting plates (11) is uniformly fixedly installed with three buffer springs (10), and one end of each buffer spring (10) is fixedly installed on the inner wall of adjacent limiting slot (9).

4. The side protection structure of a self-unloading semitrailer according to claim 1, characterized in that: The end of two buffer blocks (6) near adjacent abutting cambers (7) slidably extends out of adjacent limiting slots (9), and the surface of two abutting cambers (7) is fixedly connected with adjacent rubber pads (8).

5. The side protection structure of a self-unloading semitrailer according to claim 1, characterized in that: Two guide blocks (12) are fixedly installed at the end of two buffer blocks (6) near the vehicle frame (1), two communication holes (15) are formed in the inner wall of two limiting slots (9) near adjacent two guide slots (14), and one end of each communication hole (15) is in communication connection with adjacent guide slot (14).

6. A side protection structure for a self-unloading semi-trailer according to claim 5, characterized in that: Each guide block (12) is T-shaped, one end of each guide block (12) is slidably connected with the inner wall of adjacent guide slot (14), a plurality of rolling balls (13) are rotatably installed at the top end and the bottom end of each guide block (12) inside the guide slot (14), and each rolling ball (13) is in rolling connection with the inner wall of adjacent guide slot (14).

Images