Dumper rear tail door sealing structure

Abstract

The utility model provides a sealing structure for a rear tail door of a dumper. The sealing structure comprises a cargo compartment and the rear tail door, a bottom plate of the cargo compartment comprises a straight part, and the straight part inclines upwards to form an inclined part when approaching the tail part of the cargo compartment; the sealing structure further comprises a corner cofferdam and stand columns, the corner cofferdam and the stand columns are arranged at the tail of the cargo compartment, the two stand columns are welded to the side walls of the cargo compartment respectively, and each stand column extends downwards from the upper end of the cargo compartment to the corner cofferdam. The rear tail door is connected with a check block, the check block comprises a first blocking part, a second blocking part and a third blocking part, and when the rear tail door is closed, the third blocking part is tightly attached to the stand column, the bottom of the second blocking part is tightly attached to the corner cofferdam, and the bottom of the first blocking part is tightly attached to the inclined part. The fluidity of liquid materials can be slowed down by arranging the upwarp inclined part at the tail of the cargo compartment, the stand columns on the two sides of the cargo compartment and the corner cofferdams are perfectly attached to the check blocks, the sealing performance of the cargo compartment is enhanced, and leakage of fine powdery and liquid-phase materials and other objects in the cargo compartment is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of the sealing of the rear tailgate of a dump truck, in particular to a sealing structure for the rear tailgate of a dump truck. Background Art

[0002] A dump truck is a special vehicle that tilts its carriage at a certain angle to unload goods and relies on a hydraulic lifting device of the carriage to reset it. The cargo box is the carrier for storing goods in the truck. During transportation, due to the different physical states of the transported materials, when transporting relatively fine powdery or semi-liquid materials with high water content, since most of the existing tailgates of dump trucks only fit against the rear of the cargo box to block the goods and lack a sealing structure, the sealing performance of the tailgate is poor. As a result, when transporting relatively fine powdery or semi-liquid materials with high water content, leakage will occur, causing environmental pollution and waste of resources. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a sealing structure for the rear tailgate of a dump truck, improve the sealing performance of the rear tailgate of the dump truck, and avoid the problem of leakage when transporting relatively fine powdery, liquid-phase materials and other items.

[0004] The utility model is realized as follows:

[0005] The utility model provides a sealing structure for the rear tailgate of a dump truck, which includes a cargo box and a rear tailgate. The rear of the cargo box has a discharge opening. The rear tailgate is arranged at the discharge opening, and the upper end of the rear tailgate is hinged to the cargo box;

[0006] The bottom plate of the cargo box includes a flat part, and when the flat part approaches the rear of the cargo box, it slopes upward to form an inclined part;

[0007] The sealing structure further includes two corner cofferdams and two columns. The corner cofferdams and the columns are both arranged at the rear of the cargo box. The two corner cofferdams are respectively welded on both sides of the cargo box, and the bottom of each corner cofferdam is attached to the inclined part, and the side part of the corner cofferdam is attached to the side wall of the cargo box. The two columns are respectively welded on the side walls of the cargo box, and each column extends downward from the upper end of the cargo box to the corner cofferdam;

[0008] A side wall of the tailgate facing the discharge port is connected with a block for embedding into the cargo compartment, the block includes a first blocking portion, two second blocking portions and two third blocking portions, the length of the first blocking portion matches the width of the cargo compartment, and the first blocking portion is inclined downward, the two second blocking portions are respectively arranged at both ends of the first blocking portion, and the second blocking portion is inclined upward from the end of the first blocking portion, the length of the third blocking portion matches the height of the pillar, the two third blocking portions are respectively located on the left and right sides of the first blocking portion, and the lower end of each of the third blocking portions is connected to the corresponding second blocking portion, when the tailgate is closed, the third blocking portion is close to the pillar, the bottom of the second blocking portion is close to the corner cofferdam, and the bottom of the first blocking portion is close to the inclined portion.

[0009] Furthermore, the cross section of the corner cofferdam is triangular.

[0010] Furthermore, the cross section of the column is trapezoidal, and the inclined surface of the trapezoid faces the front end of the cargo compartment.

[0011] Furthermore, the upward inclination angle of the inclined portion is 20°.

[0012] Furthermore, the third blocking portion is inclined toward the outside of the cargo compartment.

[0013] Furthermore, two groups of fixing pins are provided on the side of the tailgate facing away from the block, and the two groups of fixing pins are respectively provided at both ends of the tailgate, and each group of the fixing pins extends to the outside of the tailgate. The two outer side walls of the cargo compartment are respectively hinged with manual hooks. After the tailgate is closed, the manual hook is rotated to connect the manual hook with the fixing pin, so that the tailgate and the cargo compartment fit tightly.

[0014] The advantages of the utility model are that the fluidity of liquid materials can be slowed down by arranging an upward inclined portion at the rear of the cargo compartment, and the columns on both sides of the cargo compartment and the corner cofferdams fit perfectly with the blocks, thereby strengthening the sealing type of the cargo compartment, thereby achieving the purpose of keeping materials away from the discharge port and avoiding leakage of finer powdery, liquid materials and other items in the cargo compartment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below in conjunction with the embodiments with reference to the accompanying drawings.

[0016] Figure 1 It is a schematic diagram of the structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the internal structure of the cargo compartment of the utility model.

[0018] Figure 3 This is a block structure diagram of the utility model.

[0019] Figure 4For Figure 2 Partial top view of the structure shown

[0020] Figure 5 Schematic diagram of the relative position structure between the stop block and the corner cofferdam of the present utility model

[0021] Description of the reference numerals in the figure

[0022] 1. Cargo box; 2. Rear tailgate; 3. Straight part; 4. Inclined part; 5. Corner cofferdam; 6. Column; 7. Stop block; 71. First blocking part; 72. Second blocking part; 73. Third blocking part; 8. Fixed pin; 9. Manual hook Specific implementation mode

[0023] Please refer to Figures 1 to 5 , the present utility model provides a sealing structure for the rear tailgate of a dump truck, including a cargo box 1 and a rear tailgate 2. The tail of the cargo box 1 has a discharge opening. The rear tailgate 2 is arranged at the discharge opening, and the upper end of the rear tailgate 2 is hinged to the cargo box 1;

[0024] The bottom plate of the cargo box 1 includes a straight part 3. When the straight part 3 is close to the tail of the cargo box 1, it slopes upward to form an inclined part 4. The angle of inclination of the inclined part 4 is 20°. When transporting semi-liquid materials with a large amount of water, the water will gradually gather on the bottom plate of the cargo box 1. By arranging the inclined part 4 at the tail of the cargo box 1, it can prevent water from overflowing from the gap between the bottom plate of the cargo box 1 and the rear tailgate 2.

[0025] The sealing structure further includes two corner cofferdams 5 and two columns 6. The two corner cofferdams 5 and the two columns 6 are both arranged inside the cargo box 1, and the installation positions of the corner cofferdams 5 and the columns 6 are close to the tail of the cargo box 1. The two corner cofferdams 5 are respectively welded to both sides of the cargo box 1, and the bottom of each corner cofferdam 5 is attached to the inclined part 4, and the side part of the corner cofferdam 5 is attached to the side wall of the cargo box 1. The two columns 6 are respectively welded to the side walls of the cargo box 1, and each column 6 extends downward from the upper end of the cargo box 1 to the corner cofferdam 5. After arranging the columns 6 on the two inner side walls of the cargo box 1, the inner side walls at the tail of the cargo box 1 protrude inward to form the first seal;

[0026] One side wall of the rear tailgate 2 facing the discharge opening is connected with a stop block 7 for embedding into the cargo box 1. After the rear tailgate 2 is closed, the stop block 7 also embeds into the cargo box 1 and is close to the inclined part 4, the corner cofferdam 5 and the column 6, so as to form the second seal, thereby realizing the final seal.

[0027] The stopper 7 includes a first stopper 71, two second stoppers 72 and two third stoppers 73. The length of the first stopper 71 matches the width of the cargo compartment 1, and the first stopper 71 is tilted downward. The downward tilt angle of the first stopper 71 matches the tilt angle of the inclined portion 4. The two second stoppers 72 are respectively arranged at the two ends of the first stopper 71, and the second stoppers 72 are tilted upward from the end of the first stopper 71. The length of the third stopper 73 matches the height of the pillar 6. The two third stoppers 73 are respectively located on the left and right sides of the first stopper 71, and the lower end of each third stopper 73 is connected to the corresponding second stopper 72. The first stopper 71, the second stopper 72 and the third stopper 73 form a stopper 7 with a U-shaped structure. When the rear tailgate 2 is closed, the third stopper 73 is close to the pillar 6, the bottom of the second stopper 72 is close to the corner cofferdam 5, and the bottom of the first stopper 71 is close to the inclined portion 4. When the rear tailgate is closed, the depth of the block 7 embedded in the cargo compartment 1 is 18 cm, thereby achieving the purpose of keeping the materials away from the discharge port.

[0028] Specifically, the cross section of the corner cofferdam 5 is triangular.

[0029] Specifically, the cross section of the column 6 is trapezoidal, and the inclined surface of the trapezoid faces the front end of the cargo compartment 1 .

[0030] Specifically, the third blocking portion 73 is inclined toward the outside of the cargo compartment 1. Viewed from a direction perpendicular to the bottom plate of the cargo compartment 1, the third blocking portion 73 is opened outwardly in an outward 8-shaped shape, while ensuring that the third blocking portion 73 is in close contact with the pillar 6, the end of the third blocking portion 73 can be closer to the inner wall of the cargo compartment 1, further improving the sealing effect.

[0031] Specifically, two groups of fixing pins 8 are provided on the side of the rear tailgate 2 away from the block 7, and the two groups of fixing pins 8 are respectively provided at both ends of the rear tailgate 2, and each group of the fixing pins 8 extends to the outside of the rear tailgate 2. The two outer side walls of the cargo compartment 1 are respectively hinged with manual hooks 9. After the rear tailgate is closed, the manual hooks 9 are rotated to connect the manual hooks 9 with the fixing pins 8, so that the rear tailgate 2 can be pulled to make the rear tailgate 2 fit tightly with the cargo compartment 1, thereby further enhancing the sealing of the cargo compartment 1.

[0032] The utility model can slow down the fluidity of liquid materials by arranging an upward inclined portion at the rear of the cargo compartment. The columns on both sides of the cargo compartment and the corner cofferdams are perfectly fitted with the blocks, thereby strengthening the sealing type of the cargo compartment, thereby achieving the purpose of keeping the materials away from the discharge port and avoiding the leakage of finer powdery, liquid materials and other items in the cargo compartment.

[0033] Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments we described are illustrative rather than used to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope protected by the claims of the present invention.

Claims

1. A sealing structure for a tailgate of a dump truck, characterized in that: It comprises a cargo compartment and a rear tailgate, wherein the rear portion of the cargo compartment has a discharge port, the rear tailgate is arranged at the discharge port, and the upper end of the rear tailgate is hinged to the cargo compartment; The bottom plate of the cargo compartment includes a straight portion, and the straight portion is inclined upward when approaching the rear of the cargo compartment to form an inclined portion; The sealing structure also includes two corner cofferdams and two columns, the corner cofferdams and the columns are both arranged at the rear of the cargo compartment, the two corner cofferdams are respectively welded to the two sides of the cargo compartment, and the bottom of each corner cofferdam is in contact with the inclined portion, the side of the corner cofferdam is in contact with the side wall of the cargo compartment, the two columns are respectively welded to the side wall of the cargo compartment, and each column extends downward from the upper end of the cargo compartment to the corner cofferdam; A side wall of the tailgate facing the discharge port is connected with a block for embedding into the cargo compartment, the block includes a first blocking portion, two second blocking portions and two third blocking portions, the length of the first blocking portion matches the width of the cargo compartment, and the first blocking portion is inclined downward, the two second blocking portions are respectively arranged at both ends of the first blocking portion, and the second blocking portion is inclined upward from the end of the first blocking portion, the length of the third blocking portion matches the height of the pillar, the two third blocking portions are respectively located on the left and right sides of the first blocking portion, and the lower end of each of the third blocking portions is connected to the corresponding second blocking portion, when the tailgate is closed, the third blocking portion is close to the pillar, the bottom of the second blocking portion is close to the corner cofferdam, and the bottom of the first blocking portion is close to the inclined portion.

2. A dump truck tailgate sealing structure as claimed in claim 1, characterized in that: The cross section of the corner cofferdam is triangular.

3. The sealing structure of the rear door of a dump truck according to claim 1, characterized in that: The cross section of the column is trapezoidal, and the inclined surface of the trapezoid faces the front end of the cargo compartment.

4. A dump truck tailgate sealing structure as claimed in claim 1, characterized in that: The upward inclination angle of the inclined portion is 20°.

5. The sealing structure of the rear door of a dump truck according to claim 1, characterized in that: The third blocking portion is inclined toward the outer side of the cargo compartment.

6. The sealing structure of the tailgate of a dump truck as claimed in claim 1, characterized in that: Two groups of fixing pins are arranged on the side of the rear tailgate away from the block, and the two groups of fixing pins are respectively arranged at both ends of the rear tailgate, and each group of the fixing pins extends to the outside of the rear tailgate. Manual hooks are respectively hinged on the two outer side walls of the cargo compartment. After the rear tailgate is closed, the manual hooks are rotated to connect the manual hooks with the fixing pins, so that the rear tailgate and the cargo compartment fit tightly.

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