Buffer hanger for dump truck

Abstract

The utility model provides a buffer hanger for a dump truck, which relates to the technical field of dump trucks, and comprises a fixed seat, a middle connecting frame, a front pin shaft, a rear pin shaft and a hanger arm, an accommodating cavity is arranged in the middle connecting frame, the middle connecting frame is parallelogram-shaped, and the front pin shaft hole and the rear pin shaft hole are arranged at two ends of the upper part of the middle connecting frame; the fixing base is composed of a bottom plate and a connecting arm integrally and obliquely extending along the bottom plate, and a front connecting hole is formed in the top of the connecting arm. Rear connecting holes are formed in the front ends of the upper parts of the hanger arms; a bottom plate of the fixing seat is located below the middle connecting frame, and a connecting arm of the fixing seat is arranged in the containing cavity of the middle connecting frame. According to the utility model, the usable area of the buffer hanger on the rear upright post of the carriage can be effectively reduced, and the manufacturing cost cannot be increased due to the increase of the assembly space; the device is simple in structure, high in practicability and convenient to popularize and apply.

Description

Technical Field

[0001] This utility model relates to the field of dump truck technology, and in particular to a buffer bracket for dump trucks. Background Technology

[0002] The function of the dump truck trailer is to connect the box body and the rear door assembly respectively. When loading, the rear door assembly is close to the rear end of the box body, so that the inside of the box body forms a sealed space. When unloading, the rear door assembly is lifted with the box body and opens by its own weight around the hinge axis, so that the goods are unloaded from the box body.

[0003] Traditional two-stage buffer racks, such as Figure 1 As shown, the assembly includes a fixed base 1, an intermediate connecting frame 2, a front pin 8, a rear pin 9, a connecting rib 4, and a hanger arm 5. The intermediate connecting frame 2 consists of a pair of parallel side plates 3 with a connecting rib 4 fixed horizontally in the middle. The outer contour of the side plates 3 is triangular. The top of the intermediate connecting frame 2 is provided with a front pin hole 6 and a rear pin hole 7. The top of the fixed base 1 is connected to the front pin hole 6 of the intermediate connecting frame 2 through the front pin 8. The hanger arm 5 provides a rear pin 9 that is connected to the rear pin hole 7 of the intermediate connecting frame 2. The fixed base 1 is fixedly installed on the upper end face of the rear pillar of the carriage. When the size of the rear pillar of the carriage is small, the fixed base and the intermediate connecting frame cannot be placed on the rear pillar of the carriage at the same time. The traditional hanger assembly requires a large space for installation, and the size of the carriage pillar needs to be increased accordingly, which leads to an increase in manufacturing costs. Summary of the Invention

[0004] This utility model provides a buffer bracket for dump trucks, which requires less installation space and can effectively reduce the area used when the buffer bracket is installed on the rear pillar of the truck body.

[0005] To solve the technical problem, the present invention adopts the following technical solution:

[0006] A buffer bracket for a dump truck includes a fixed base, a middle connecting frame, a front pin, a rear pin, and a bracket arm. The middle connecting frame has a receiving chamber and is in the shape of a parallelogram. The upper two ends of the middle connecting frame are provided with front pin holes and rear pin holes.

[0007] The mounting base consists of a base plate and a connecting arm that extends inclinedly along the base plate. The top of the connecting arm is provided with a front connection hole.

[0008] The upper front end of the hanging arm is provided with a rear connection hole;

[0009] The base plate of the fixed seat is located below the intermediate connecting frame. The connecting arm of the fixed seat is placed in the receiving cavity of the intermediate connecting frame. The intermediate connecting frame is hinged to the fixed seat through the front pin hole, the front pin, and the front connecting hole. The hanger arm is hinged to the intermediate connecting frame through the rear connecting hole, the rear pin, and the rear pin hole.

[0010] Furthermore, the intermediate connecting frame of the fixed seat includes two side plates, which are in the shape of parallelograms. The two side plates are arranged in parallel and welded together by upper connecting ribs and lower connecting ribs to form a receiving cavity in the middle.

[0011] Furthermore, the tilt angle of the connecting arm of the fixed seat is adapted to the tilt angle of the side plate.

[0012] Furthermore, the base plate of the fixed seat has the same length as the intermediate connecting frame.

[0013] The beneficial effects of this utility model are as follows:

[0014] This utility model, by changing the shape of the fixed base and the intermediate connecting frame, allows the fixed base to be installed as a whole within the receiving cavity of the intermediate connecting frame, requiring less space during installation. Furthermore, the base plate of the fixed base and the lower end of the intermediate connecting frame form a full-circumferential surface contact support structure, and the side plates of the intermediate connecting frame adopt a parallelogram structure, which can effectively form a compact assembly with the fixed base and the hanger arm. This effectively reduces the area used when the buffer hanger is installed on the rear pillar of the carriage, and does not increase manufacturing costs due to increased assembly space. This utility model has a simple structure, strong practicality, and is easy to promote and apply. Attached Figure Description

[0015] Figure 1 Here is a diagram of the existing buffer hanger structure;

[0016] Figure 2 This is a schematic diagram of the structure of this utility model;

[0017] Figure 3 This is a reference diagram for the use of this utility model.

[0018] In the diagram: 1. Fixed base, 1-1 base plate, 1-2 connecting arm, 2. Intermediate connecting frame, 3. Side plate, 4. Connecting rib, 4-1. Upper connecting rib, 4-2. Lower connecting rib, 5. Hanger arm, 6. Front pin hole, 7. Rear pin hole, 8. Front pin, 9. Rear pin. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0020] refer to Figures 2-3 A buffer bracket for a dump truck includes a fixed base 1, an intermediate connecting frame 2, a front pin 8, a rear pin 9, and a bracket arm 5. The intermediate connecting frame 2 has a receiving chamber and is in the shape of a parallelogram. The upper two ends of the intermediate connecting frame 2 are provided with a front pin hole 6 and a rear pin hole 7.

[0021] The fixed base 1 consists of a base plate 1-1 and a connecting arm 1-2 that extends inclinedly along the base plate. The top of the connecting arm 1-2 is provided with a front connecting hole.

[0022] The upper front end of the hanging arm 5 is provided with a rear connection hole;

[0023] The base plate 1-1 of the fixed seat 1 is located below the intermediate connecting frame 2. The connecting arm 1-2 of the fixed seat 1 is placed in the receiving cavity of the intermediate connecting frame 2. The intermediate connecting frame 2 is hinged to the fixed seat 1 through the front pin hole 6, the front pin 8, and the front connecting hole. The bracket arm 5 is hinged to the intermediate connecting frame 2 through the rear connecting hole, the rear pin 9, and the rear pin hole 7.

[0024] During installation, the lower part of the mounting base 1 is fixed to the upper end of the rear column of the carriage, and the side of the hanging arm 5 is fixed to the rear door assembly of the carriage.

[0025] Furthermore, the intermediate connecting frame 2 includes two side plates 3, which are parallelogram-shaped. The two side plates 3 are arranged in parallel and welded together by the upper connecting rib 4-1 and the lower connecting rib 4-2 to form an accommodating chamber in the middle.

[0026] The upper connecting rib 4-1 and the lower connecting rib 4-2 are located outside the rotation avoidance area of ​​the fixed seat 1 and the hanging arm 5.

[0027] Furthermore, the tilt angle of the connecting arm of the fixed seat is adapted to the tilt angle of the side plate.

[0028] Furthermore, the base plate of the fixing seat has the same length as the intermediate connecting frame;

[0029] Increasing the bearing area along the length direction improves the support stability of the fixed base.

[0030] Working principle: The lower part of the fixed seat of this utility model is fixed to the rear column of the carriage. The front connecting hole at the top of the fixed seat is hinged to the front pin hole of the intermediate connecting frame through the front pin shaft. The rear connecting hole on the hanger arm is hinged to the rear pin hole of the intermediate connecting frame through the rear pin shaft. The hanger arm is fixed to the rear door assembly of the carriage.

[0031] Based on the above description, any simple changes and modifications made by those skilled in the art without departing from the scope of the present invention's technical concept should fall within the protection scope of the present invention.

Claims

1. A bumper hitch for a dump truck, comprising a fixed seat, an intermediate connecting frame, a front pin shaft, a rear pin shaft, a hitch arm, characterized in that, The intermediate connecting frame is in parallelogram shape, and two ends of the upper portion of the intermediate connecting frame are provided with front pin shaft holes and rear pin shaft holes; The fixing base is composed of a bottom plate and a connecting arm extending integrally and obliquely on the bottom plate, and the top of the connecting arm is provided with a front connecting hole; The upper portion of the hanger arm is provided with a rear connecting hole at the front end; The bottom plate of the fixing base is located below the intermediate connecting frame, the connecting arm of the fixing base is arranged in the accommodating cavity of the intermediate connecting frame, and the intermediate connecting frame is hinged to the fixing base through the front pin shaft holes, the front pin shaft and the front connecting hole; the hanger arm is hinged to the intermediate connecting frame through the rear connecting hole, the rear pin shaft and the rear pin shaft hole.

2. A cushioned hanger for a dump truck as defined in claim 1, wherein The intermediate connecting frame of the fixing base comprises two side plates, the side plates are in parallelogram shape, the two side plates are arranged in parallel and are welded into one body through upper connecting ribs and lower connecting ribs, and an accommodating cavity is formed in the middle.

3. A cushioned hanger for a dump truck as defined in claim 2, wherein The inclination angle of the connecting arm of the fixing base is matched with the inclination angle of the side plate.

4. A cushioned hanger for a dump truck as defined in claim 1, wherein The length of the bottom plate of the fixing base is the same as that of the intermediate connecting frame.

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