A side-opening rear door for dump trucks

Abstract

This application discloses a side-opening rear door for a dump truck, comprising: an outer frame; an inner door rotatably mounted on the outer frame; a first pivot bracket mounted on the outer frame; a first pivot rotatably mounted on the first pivot bracket; and a connector mounted on the first pivot, connecting the inner door to the inner door. The dump truck rear door includes an outer frame and a rotatably mounted inner door on the outer frame. The inner door is connected to the first pivot via the connector, allowing it to rotatably mount on the outer frame. When needed, the inner door can be rotated to open to the side. After the inner door is opened to the side, personnel can climb into the truck bed through the rear door. The inner door is lightweight, making it easier for personnel to climb into the truck bed.

Description

Technical Field

[0001] This application relates to the field of dump truck rear door technology, and particularly to a side-opening dump truck rear door. Background Technology

[0002] Dump trucks are vehicles that unload goods themselves using hydraulic or mechanical lifting. They are also known as tipper trucks. They consist of a truck chassis, a hydraulic lifting mechanism, a cargo box, and a power take-off unit.

[0003] In related technologies, the rear door of a dump truck can only be opened when the cargo compartment is raised. When workers want to access the cargo compartment to organize goods, they often need to open the side door, which is heavy and time-consuming and laborious to open.

[0004] Therefore, it is necessary to propose a side-opening rear door for dump trucks, which has become an important technical problem that urgently needs to be solved. Utility Model Content

[0005] This application provides a side-opening rear door for dump trucks, aiming to solve the problem that in the prior art, the rear door of a dump truck can only be opened when the truck bed is raised. When workers want to go to the truck bed to arrange goods, they often need to open the side door, which is heavy and time-consuming and laborious to open.

[0006] To achieve the above objectives, this application proposes a side-opening dump truck rear door, comprising: an outer frame; an inner door rotatably disposed on the outer frame; a first pivot bracket disposed on the outer frame; a first pivot rotatably disposed on the first pivot bracket; and a connector disposed on the first pivot and connected to the inner door.

[0007] In some embodiments, it further includes: a first bolt plate disposed on the inner door; and a first bolt rod rotatably disposed on the outer frame.

[0008] In some embodiments, the device further includes: a bolt fixing seat disposed on the outer frame, the bolt fixing seat having a through hole for the first bolt to pass through; a threaded section, the first bolt having a threaded section passing through the through hole of the bolt fixing seat; and a locking nut screwed onto the threaded section.

[0009] In some embodiments, the vehicle further includes: a carriage frame; a second axle bracket disposed on the carriage frame; and a third axle bracket disposed on the outer frame, wherein both the second and third axle brackets are provided with axle holes.

[0010] In some embodiments, the device further includes: a side door rotatably mounted on the carriage frame; a second bolt rod rotatably mounted on the carriage frame; and a second bolt plate mounted on the side door.

[0011] In some embodiments, it also includes:

[0012] The fourth axle bracket is mounted on the car frame.

[0013] This application proposes a side-opening rear door for a dump truck, comprising: an outer frame; an inner door rotatably mounted on the outer frame; a first pivot bracket mounted on the outer frame; a first pivot rotatably mounted on the first pivot bracket; and a connector mounted on the first pivot, connecting the connector to the inner door. The dump truck rear door includes an outer frame and a rotatably mounted inner door on the outer frame. The inner door is connected to the first pivot via the connector, allowing it to rotatably mount on the outer frame. When needed, the inner door can be rotated to open to the side. After the inner door is opened to the side, personnel can climb into the truck bed through the rear door. The inner door is lightweight, making it easier for personnel to climb into the truck bed. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0015] Figure 1 This is a schematic diagram of the structure of a side-opening dump truck rear door after it is unfolded, according to one embodiment of this application.

[0016] Figure 2 This is a schematic diagram of the structure of a side-opening dump truck rear door according to one embodiment of this application;

[0017] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0018] Figure 4 This is a left structural view of a dump truck rear door, side door, and cargo box frame that can be opened to the side, according to an embodiment of this application.

[0019] Figure 5 for Figure 4 A magnified view of a section at point B in the middle;

[0020] Figure 6 This is a right view of the structure of a side-opening dump truck rear door, side door, and truck body frame according to an embodiment of this application;

[0021] Figure 7 This is a schematic diagram of the structure of a side-opening dump truck rear door in one embodiment of this application when it is opened to the rear.

[0022] In the diagram: outer frame 1, third pivot bracket 2, connector 3, inner door 4, first bolt plate 5, first pivot bracket 6, first bolt rod 7, threaded section 71, side door 8, second bolt plate 9, second pivot bracket 10, second bolt rod 11, carriage frame 12, fourth pivot bracket 13, bolt rod fixing seat 14, locking nut 15, first pivot 16. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0024] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0025] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0026] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0027] See Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, this application proposes a side-opening rear door for a dump truck, comprising: an outer frame 1; an inner door 4 rotatably mounted on the outer frame 1; a first pivot bracket 6 mounted on the outer frame 1; a first pivot 16 rotatably mounted on the first pivot bracket 6; and a connector 3 mounted on the first pivot 16 and connected to the inner door 4.

[0028] The outer frame 1 and the inner door 4 constitute the rear door structure of the dump truck. The first pivot bracket 6, the first pivot 16 and the connecting piece 3 constitute the hinge structure. The hinge structure allows the inner door 4 to be rotatably mounted on the outer frame 1. When needed, the inner door 4 can be rotated to open to the side.

[0029] Specifically, the dump truck's rear door includes an outer frame 1 and an inner door 4 rotatably mounted on the outer frame 1. The inner door 4 is connected to a first pivot 16 via a connector 3, allowing it to be rotatably mounted on the outer frame 1. When needed, the inner door 4 can be rotated to open to the side. After the inner door 4 is opened to the side, personnel can climb into the truck bed through the rear door. The inner door 4 is lightweight, making it easier for personnel to climb into the truck bed.

[0030] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, in some embodiments, it further includes: a first bolt plate 5, which is disposed on the inner door 4; a connector 3 located on one side of the inner door 4, and the first bolt plate 5 located on the other side of the inner door 4, the first bolt plate 5 being welded to the inner door 4. A first bolt rod 7, which is rotatably disposed on the outer frame 1. When the first bolt rod 7 rotates downward, it engages the first bolt plate 5, at which point the inner door 4 is locked by the first bolt rod 7. When the first bolt rod 7 rotates upward, its position is offset from the first bolt plate 5, at which point the inner door 4 can rotate.

[0031] In this embodiment, two first bolt plates 5 are provided, and the two first bolt plates 5 are vertically spaced on the inner door 4. Two first bolt rods 7 are also provided, and the two first bolt rods 7 correspond to one first bolt plate 5 respectively. The first bolt rod 7 includes a vertical extension section and a horizontal extension section. The horizontal extension section is rotatably disposed on the outer frame 1, and the vertical extension section is used to fasten the first bolt plate 5.

[0032] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, in some embodiments, it further includes: a bolt fixing seat 14, which is disposed on the outer frame 1 and has a through hole for the first bolt 7 to pass through; the bolt fixing seat 14 is welded to the outer frame 1. A threaded section 71 is provided on the first bolt 7, which passes through the through hole of the bolt fixing seat 14; the tail of the transverse extension section is threaded to form the threaded section 71, the outer diameter of the transverse extension section is slightly smaller than the inner diameter of the through hole on the bolt fixing seat 14, and the transverse extension section extends into the through hole on the bolt fixing seat 14, so that the threaded section 71 just fully extends out of the through hole on the bolt fixing seat 14. A locking nut 15 is screwed onto the threaded section 71. The locking nut 15 and the vertical extension section ensure that the first bolt 7 is rotatably disposed on the bolt fixing seat 14 and cannot be dislodged.

[0033] See Figure 4 , Figure 6 and Figure 7 As shown, in some embodiments, the system further includes: a carriage frame 12; a second pivot bracket 10 disposed on the carriage frame 12; and a third pivot bracket 2 disposed on the outer frame 1. Both the second pivot bracket 10 and the third pivot bracket 2 are provided with pivot holes. The second pivot bracket 10 and the third pivot bracket 2 are connected together by a second pivot, allowing the outer frame 1 to be rotatably mounted on the carriage frame 12.

[0034] See Figure 4 , Figure 6 and Figure 7 As shown, in some embodiments, the system further includes: a side door 8, rotatably mounted on the carriage frame 12; the bottom of the side door 8 rotatably mounted on the carriage frame 12; a second bolt 11, rotatably mounted on the carriage frame 12; and a second bolt plate 9, mounted on the side door 8. The second bolt plate 9 is positioned near the top of the door. When the side door 8 is closed, rotating the second bolt 11 downwards will engage the second bolt plate 9, preventing the side door 8 from opening. Rotating the second bolt 11 upwards will release the second bolt plate 9, allowing the side door 8 to open.

[0035] See Figure 4 , Figure 6 and Figure 7 As shown, in some embodiments, it further includes a fourth pivot bracket 13, which is disposed on the carriage frame 12. The fourth pivot bracket 13 is provided with a pivot hole. The fourth pivot bracket 13 is rotatably mounted on the chassis via a third pivot. When the hydraulic lifting mechanism lifts the carriage frame 12, the carriage frame 12 can rotate with the third pivot as the fulcrum. At this time, under the action of gravity, a gap will be generated between the outer frame 1 and the carriage frame 12 to open the rear door and unload the goods in the carriage.

[0036] The above description is only a part or preferred embodiment of this application. Neither the text nor the drawings should limit the scope of protection of this application. All equivalent structural transformations made using the content of this application's specification and drawings under the overall concept of this application, or direct / indirect applications in other related technical fields, are included within the scope of protection of this application.

Claims

1. A side-opening rear door for a dump truck, characterized in that, include: Outer frame (1); Inner door (4), which is rotatably mounted on the outer frame (1); The first rotating shaft bracket (6) is disposed on the outer frame (1). The first rotating shaft (16) is rotatably mounted on the first rotating shaft frame (6). Connector (3), the connector (3) is disposed on the first rotating shaft (16), and the connector (3) is connected to the inner door (4).

2. The side-opening rear door of a dump truck according to claim 1, characterized in that, Also includes: The first bolt plate (5) is disposed on the inner door (4); The first bolt (7) is rotatably mounted on the outer frame (1).

3. The side-opening rear door of a dump truck according to claim 2, characterized in that: Also includes: Bolt fixing seat (14), the bolt fixing seat (14) is disposed on the outer frame (1), and the bolt fixing seat (14) is provided with a through hole for the first bolt (7) to pass through; Threaded section (71), the first bolt (7) is provided with the threaded section (71), the threaded section (71) of the first bolt (7) passes through the through hole of the bolt fixing seat (14); Locking nut (15), which is screwed onto the threaded section (71).

4. The side-opening rear door of a dump truck according to claim 1, characterized in that: Also includes: Carriage frame (12); The second axle bracket (10) is disposed on the carriage frame (12). The third rotating shaft bracket (2) is disposed on the outer frame (1), and both the second rotating shaft bracket (10) and the third rotating shaft bracket (2) are provided with rotating shaft holes.

5. A side-opening rear door for a dump truck according to claim 4, characterized in that: Also includes: Side door (8), which is rotatably mounted on the carriage frame (12). The second bolt (11) is rotatably mounted on the carriage frame (12). The second bolt plate (9) is disposed on the side door (8).

6. A side-opening rear door for a dump truck according to claim 4, characterized in that, Also includes: The fourth pivot bracket (13) is disposed on the carriage frame (12).

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