Earthwork transport vehicle with gradient of carriage capable of being adjusted in two-section mode

Abstract

The invention provides an earthwork transport vehicle with a compartment capable of adjusting the gradient in a two-section mode. The earthwork transport vehicle comprises a vehicle head, a vehicle frame and the compartment. A first wheel group is arranged at the bottom of the headstock; the first end of the frame is fixedly connected to the headstock, a second wheel set is arranged at the bottom of the frame close to the first end, and a third wheel set is arranged at the bottom of the frame close to the second end; the second end of the carriage is rotatably connected to the second end of the frame, a jacking system connected with the carriage and the frame is arranged in the middle of the carriage, the jacking system is rotatably connected with the carriage and the frame, and when the jacking system jacks the middle of the carriage, the first end of the carriage can be rotatably lifted with the second end of the carriage as the center point. Therefore, the gradient of the carriage is changed. The arranged jacking system comprises a first hydraulic cylinder, a second hydraulic cylinder and a sliding frame, the first hydraulic cylinder and the second hydraulic cylinder can adjust the gradient of the carriage in a two-section type inclination mode, the connecting included angle between the carriage and the frame is further increased, and goods unloading is more efficient and thorough.

Description

Technical Field

[0001] This invention relates to the field of earthwork transportation technology in construction, and more specifically, to an earthwork transport vehicle with a two-section adjustable slope for the cargo compartment. Background Technology

[0002] Earthmoving vehicles are an indispensable tool in engineering construction. They are mainly used to transport earth, stone and other infrastructure materials or earthwork waste. They are widely used in infrastructure construction, real estate development, mining and other fields. In order to facilitate unloading, earthmoving vehicles with adjustable slopes are often used.

[0003] Existing adjustable slope earthmoving vehicles are usually equipped with lifting systems that can tilt the truck bed at a certain angle, allowing the earth to be unloaded automatically by gravity. However, such truck beds cannot achieve two-stage tilting when tilting, which can easily lead to low earthmoving efficiency and incomplete earthmoving. Summary of the Invention

[0004] In view of this, the present invention proposes a dump truck with a two-section adjustable slope, comprising:

[0005] The front of the vehicle has the first set of wheels at its bottom.

[0006] The frame has a first end fixedly connected to the front of the vehicle, a second wheel set is provided at the bottom of the frame near the first end, and a third wheel set is provided at the bottom of the frame near the second end.

[0007] The carriage has a second end that is rotatably connected to the second end of the frame. The middle of the carriage is provided with a lifting system that connects the carriage and the frame. The lifting system is rotatably connected to both the carriage and the frame. When the lifting system lifts the middle of the carriage, the first end of the carriage can rotate and lift with its second end as the center point, thereby changing the slope of the carriage.

[0008] Specifically, by installing two sets of wheels, a second set and a third set, at the bottom of the chassis, the center of gravity of the truck bed can be kept more stable, preventing the truck bed from tipping over when the center of gravity shifts when dumping soil.

[0009] Furthermore, a first crossbar is provided near the first end of the vehicle frame, and the lifting system is rotatably connected to the first crossbar.

[0010] Furthermore, the lifting system includes a first hydraulic cylinder, a second hydraulic cylinder, and a sliding frame. The first hydraulic cylinder is fixedly connected to the bottom of the carriage at one end and to the sliding frame at the other end. The sliding frame is slidably connected to the bottom of the carriage and can move along the bottom of the carriage as pushed by the second hydraulic cylinder. The first hydraulic cylinder is rotatably connected to the frame at one end and to the sliding frame at the other end.

[0011] Furthermore, the bottom of the carriage is provided with a groove corresponding to the sliding frame, and the sliding frame can slide within the groove.

[0012] Specifically, when the first hydraulic cylinder pushes the sliding frame, the push is transmitted to the middle of the carriage through the sliding frame. Since the second end of the carriage is rotatably connected to the frame, the carriage can be lifted to a certain slope so that the goods in the carriage can slide down the slope and be unloaded. When the first hydraulic rod is pushed to the highest point, the second hydraulic cylinder can be activated to drive the sliding frame to slide towards the second end of the carriage, thereby increasing the connection angle between the carriage and the frame, further increasing the slope of the carriage, and further accelerating the sliding of the goods in the carriage, thus achieving higher efficiency unloading.

[0013] Furthermore, the sliding frame is a U-shaped frame and is provided with a corresponding second crossbar. The two arm ends of the U-shaped frame are provided with through holes. The two ends of the second crossbar are respectively rotatably disposed in the two through holes. The other end of the second hydraulic cylinder is rotatably connected to the second crossbar.

[0014] Furthermore, the two ends of the second crossbar are provided with protrusion structures to ensure that it remains connected to the two through holes and does not fall off.

[0015] Furthermore, a carriage door is movably connected to the second end of the carriage, and the carriage door can be opened at any time to facilitate the unloading of loaded goods. A handle is installed at the bottom of the carriage door, and by supporting the handle and exerting upward force, the carriage door is pushed to the top of the carriage, making the opening and closing of the carriage door more convenient and effortless.

[0016] Specifically, existing dump trucks often have rear cargo doors connected to a tilting mechanism, with the tilting axle located at the bottom of the cargo box. This means that during unloading, cargo often scrapes against the bottom-mounted doors, easily damaging them. Conversely, cargo doors with the tilting axle at the top of the cargo box often obstruct cargo sliding down the floor during unloading, reducing unloading efficiency. Therefore, changing the cargo door connection from a tilting link to a movable connection avoids these problems. Furthermore, the door can be moved upwards to the top of the cargo box after opening, minimizing space occupation and increasing adaptability.

[0017] Furthermore, a movable connecting member is provided between the carriage door and the carriage, which includes a fixed plate, a connecting body and a slide rail. The fixed plate is fixedly installed in the carriage, the top of the connecting body is rotatably connected to the right side of the fixed plate, the connecting body is slidably connected to the slide rail, and the slide rail is fixedly connected to the carriage door.

[0018] Furthermore, rotating arms are rotatably provided on the inner walls of the left and right sides of the carriage corresponding to the carriage door. The first end of the rotating arm is rotatably connected to the carriage door, and the second end of the rotating arm is connected to the carriage through a first fixing device. The first fixing device is fixedly connected to the carriage, and the second end of the rotating arm is rotatably connected to the first fixing device. A torsion spring is connected to the second end of the rotating arm. One end of the torsion spring is connected to the rotating arm, and the other end is fixedly connected to the carriage.

[0019] Specifically, the torsion spring allows the rotating arm to support the car door and keep it stable. The torsion spring also helps the car door remain stable after it comes to rest, making it easier to open and close the car door.

[0020] Furthermore, the other end of the torsion spring is fixedly connected to the carriage by a second fastener.

[0021] This invention provides a soil transport vehicle with a two-section adjustable slope for the cargo compartment, offering the following advantages: The lifting system includes a first hydraulic cylinder, a second hydraulic cylinder, and a sliding frame. When the first hydraulic cylinder pushes the sliding frame, the push is transmitted to the middle of the cargo compartment. Since the second end of the cargo compartment is rotatably connected to the frame, the first end of the cargo compartment can be lifted, creating an angle between the cargo compartment and the ground, thus adjusting the slope. When the first hydraulic cylinder pushes to its highest point, it activates the second hydraulic cylinder to slide the sliding frame towards the second end of the cargo compartment, further increasing the connection angle between the cargo compartment and the ground, further increasing the slope of the cargo compartment, and thus further accelerating the unloading of goods inside the cargo compartment, achieving higher unloading efficiency and improving the thoroughness of unloading. The movable connecting piece, in conjunction with a rotating arm, and the rotating arm and torsion spring supporting the door, maintain stability and facilitate upward movement of the door. Through the action of the sliding rail and connecting body, the door can change its angle and ultimately move upward to the top of the cargo compartment, ensuring that the door does not occupy excessive space when opened, thus enhancing adaptability. Attached Figure Description

[0022] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0023] Figure 1 This is a three-dimensional structural diagram of a soil transport vehicle with a two-section adjustable slope provided in an embodiment of the present invention.

[0024] Figure 2 This is a schematic diagram of the adjustable slope adjustment process of the carriage provided in an embodiment of the present invention;

[0025] Figure 3 A cross-sectional schematic diagram of an adjustable-slope carriage provided in an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the carriage door opening provided in an embodiment of the present invention;

[0027] In the diagram: 1. Locomotive head; 2. Locomotive frame; 3. Carriage body; 4. Lifting system; 5. Carriage door; 6. Movable connector; 7. Rotating arm; 8. Torsion spring.

[0028] 11. First wheel set; 21. Second wheel set; 22. Second wheel set; 23. First crossbar; 31. Slide groove; 41. First hydraulic cylinder; 42. Second hydraulic cylinder; 43. Sliding frame; 44. Second crossbar; 61. Fixing plate; 62. Connecting body; 63. Slide rail; 71. First fixing device; 81. Second fixing device. Detailed Implementation

[0029] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] See Figure 1-4As shown in the figure, this invention provides an embodiment of a soil transport vehicle with a two-section adjustable slope, including a truck head 1, a frame 2, and a cargo box 3. The truck head 1 has a first wheel set 11 at its bottom. The first end of the frame 2 is fixedly connected to the truck head 1. The bottom of the frame 2 near the first end has a second wheel set 21, and the bottom of the frame 2 near the second end has a third wheel set 22. The second end of the cargo box 3 is rotatably connected to the second end of the frame 2. The middle of the cargo box 3 has a lifting system 4 connecting the cargo box 3 and the frame 2. The lifting system 4 is rotatably connected to both the cargo box 3 and the frame 2. When the lifting system 4 lifts the middle of the cargo box 3, the first end of the cargo box 3 can rotate and lift with its second end as the center point, thereby changing the slope of the cargo box 3.

[0031] Specifically, by installing two sets of wheels, a second wheel set 21 and a third wheel set 22, at the bottom of the frame 2, the center of gravity of the carriage 3 can be kept more stable, and the carriage 3 can be prevented from tipping over when the center of gravity shifts when dumping soil.

[0032] Reference Figure 2-3 As shown, a first crossbar 23 is provided at the first end near the frame 2, and the lifting system is rotatably connected to the first crossbar.

[0033] Continue to refer to Figure 2-3 As shown, the lifting system 4 includes a first hydraulic cylinder 41, a second hydraulic cylinder 42, and a sliding frame 43. One end of the second hydraulic cylinder 42 is fixedly connected to the bottom of the carriage 3, and the other end is fixedly connected to the sliding frame 43. The sliding frame 43 is slidably connected to the bottom of the carriage 3 and can move along the bottom of the carriage 3 as the second hydraulic cylinder 42 pushes. One end of the first hydraulic cylinder 41 is rotatably connected to the frame 2, and the other end is rotatably connected to the sliding frame 43. A control center is correspondingly provided inside the front of the vehicle 1, which can adjust the lifting system 4.

[0034] Reference Figure 2 As shown, the bottom of the carriage 3 is provided with a sliding groove 31 corresponding to the sliding frame 43, and the sliding frame 43 can slide in the sliding groove 31.

[0035] Specifically, through the control center's regulation, when the first hydraulic cylinder 41 pushes the sliding frame, the push is transmitted to the middle of the carriage through the sliding frame. Since the second end of the carriage is rotatably connected to the frame, the carriage can be raised to a certain slope, allowing the goods inside the carriage to slide down the slope for unloading. When the first hydraulic rod is pushed to the highest point, the control center can activate the second hydraulic cylinder to drive the sliding frame to slide towards the second end of the carriage, thereby increasing the connection angle between the carriage and the frame, further increasing the slope, and further accelerating the sliding of the goods inside the carriage, achieving high-efficiency unloading.

[0036] Reference Figure 2-3 As shown, the sliding frame 43 is a U-shaped frame with a corresponding second crossbar 44. The two arm ends of the U-shaped frame are provided with through holes. The two ends of the second crossbar 44 are respectively rotatably disposed in the two through holes. The other end of the second hydraulic cylinder 42 is rotatably connected to the second crossbar 44. The bottom of the U-shaped frame is locked in the slide groove 31 and can slide along the slide groove 31.

[0037] In this embodiment, the two ends of the second crossbar 44 are provided with protrusion structures to ensure that the second crossbar 44 is connected to the two through holes and will not fall off.

[0038] Reference Figure 4 As shown, a carriage door 5 is movably connected to the second end of the carriage 3. The carriage door 5 can be opened at any time to facilitate the unloading of loaded goods.

[0039] Continue to refer to Figure 4 As shown, a movable connecting member is provided between the carriage door and the carriage, which includes a fixed plate, a connecting body, and a slide rail. The fixed plate is fixedly mounted on the carriage, the top of the connecting body is rotatably connected to the right side of the fixed plate, the connecting body is slidably connected to the slide rail, and the slide rail is fixedly connected to the carriage door. Rotating arms are rotatably mounted on the left and right inner walls of the carriage corresponding to the carriage door. The first end of each rotating arm is rotatably connected to the carriage door, and the second end of each rotating arm is connected to the carriage via a first fixing device. The first fixing device is fixedly connected to the carriage, and the second end of the rotating arm is rotatably connected to the first fixing device. A torsion spring is connected to the second end of each rotating arm, one end of which is connected to the rotating arm, and the other end is fixedly connected to the carriage.

[0040] Specifically, the torsion spring allows the rotating arm to support the car door and keep it stable. The torsion spring also helps the car door remain stable after it comes to rest, making it easier to open and close the car door.

[0041] The bottom of the carriage door 5 is equipped with a handle. By supporting the handle and exerting upward force, the carriage door 5 is pushed upward to the top of the carriage 3, making the opening and closing of the carriage door 5 more convenient and effortless.

[0042] Specifically, existing dump trucks often use side-opening or rear-hinged doors, which often occupy a lot of space when opened. The door is moved upward by the handle, and the door is supported by the rotating arm and torsion spring to keep it stable, making it easy to move the door upward. Through the action of the sliding rail and connecting body, the door can change its angle and finally move upward to the top of the truck bed, so that the door does not occupy too much space when opened, thus enabling the truck bed to adapt to various working conditions and work in the narrow space at the rear of the truck.

[0043] Reference Figure 4 As shown, the other end of the torsion spring 8 is fixedly connected to the carriage 3 by a second fastener 81.

[0044] The working principle of a soil transport vehicle with a two-section adjustable slope for its cargo box, as disclosed in this embodiment of the invention, is as follows:

[0045] When the carriage 3 is ready to adjust the slope, the first hydraulic cylinder 41 is activated via the control center inside the cab 1. Since one end of the first hydraulic cylinder 41 is rotatably connected to the first crossbar 23, which is fixed to the frame 2, and the other end is rotatably connected to the second crossbar 44, which is rotatably connected to the sliding frame 43, the position of the first hydraulic cylinder 41 connected to the frame 2 remains unchanged after activation, but the position of the connected second crossbar 44 changes. Simultaneously, the sliding frame 43, rotatably connected to the second crossbar 44, is activated. The first end of the carriage 3 is lifted upwards. Since the second end of the carriage 3 is rotatably connected to the frame 2, the carriage 3 forms an angle with the ground when it is lifted by the first hydraulic cylinder 41, thereby adjusting the slope of the carriage 3. When a larger slope of the carriage 3 is required, the second hydraulic cylinder 42 is activated through the control center. The second hydraulic cylinder 42 pushes out the sliding frame 43, allowing the sliding frame 43 to slide inside the slide groove 31. By moving the sliding frame 43 along the slide groove 31 towards the edge of the groove near the second end of the carriage, the slope of the carriage 3 is further increased, improving the efficiency and thoroughness of earthwork unloading.

[0046] When the carriage door 5 needs to be opened, the carriage door 5 is moved upward by the handle. Since the slide rail 63 is fixedly connected to the carriage door and the connecting body 62 is fixedly connected to the carriage 3, and the connecting body 62 can slide on the slide rail 63, the carriage door 5 can move upward to the top of the carriage 3 while changing its angle under the action of the connecting body 62. At the same time, since the top of the rotating arm 7 is rotatably connected to the carriage door 5 and the other end of the rotating arm 7 is rotatably connected to the torsion spring 8, and the torsion spring 8 is connected to the carriage 3, the rotating arm 7 can support the carriage door 5 to maintain stability, making it easier to move the carriage door 5 upward. By moving the carriage door 5 to the top of the carriage 3, the carriage door 5 will not occupy too much space after opening, so that the carriage 3 can adapt to various working conditions and operations in the narrow space at the rear of the carriage, which is beneficial for unloading operations under complex terrain conditions.

[0047] In summary, the earthmoving vehicle with a two-section adjustable slope provided in this embodiment has the following beneficial technical effects: The lifting system includes a first hydraulic cylinder, a second hydraulic cylinder, and a sliding frame. When the first hydraulic cylinder pushes the sliding frame, the push is transmitted to the middle of the truck bed through the sliding frame. Since the second end of the truck bed is rotatably connected to the frame, the first end of the truck bed can be lifted, forming an angle between the truck bed and the ground, thereby achieving adjustment of the truck bed's slope. When the first hydraulic cylinder pushes to its highest point, it can activate the second hydraulic cylinder to drive the sliding frame downwards. The second end of the carriage slides, further increasing the connection angle between the carriage and the ground, and further increasing the slope of the carriage, thereby further accelerating the sliding of goods inside the carriage, achieving higher efficiency in unloading and improving the thoroughness of unloading; through the set movable connecting parts and the rotating arm, the rotating arm and the torsion spring support the door to keep it stable, which facilitates the upward movement of the door. Through the action of the sliding rail and the connecting body, the door can change its angle and finally move upward to the top of the carriage, so that the carriage door does not occupy too much space after opening, thus enabling the carriage to adapt to various working conditions and operations in narrow spaces at the rear of the carriage.

[0048] It should be noted that in the description of this invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc., which indicate directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and is not intended to indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0049] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0050] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A dump truck with a two-section adjustable slope for its cargo compartment, characterized in that, include: The front of the vehicle has the first set of wheels at its bottom. The frame has a first end fixedly connected to the front of the vehicle, a second wheel set is provided at the bottom of the frame near the first end, and a third wheel set is provided at the bottom of the frame near the second end. The carriage has a second end that is rotatably connected to the second end of the frame. The middle of the carriage is provided with a lifting system that connects the carriage and the frame. The lifting system is rotatably connected to both the carriage and the frame. When the lifting system lifts the middle of the carriage, the first end of the carriage can rotate and lift with its second end as the center point, thereby changing the slope of the carriage.

2. The earthmoving vehicle with a two-section adjustable slope for its cargo compartment according to claim 1, characterized in that, A first crossbar is provided near the first end of the vehicle frame, and the lifting system is rotatably connected to the first crossbar.

3. The earthmoving vehicle with a two-section adjustable slope for its cargo compartment as described in claim 1, characterized in that, The lifting system includes a first hydraulic cylinder, a second hydraulic cylinder, and a sliding frame. The first hydraulic cylinder is fixedly connected to the bottom of the carriage at one end and fixedly connected to the sliding frame at the other end. The sliding frame is slidably connected to the bottom of the carriage and can move along the bottom of the carriage as pushed by the second hydraulic cylinder. The first hydraulic cylinder is rotatably connected to the frame at one end and rotatably connected to the sliding frame at the other end.

4. The earthmoving vehicle with a two-section adjustable slope for its cargo compartment according to claim 3, characterized in that, The bottom of the carriage is provided with a sliding groove corresponding to the sliding frame, and the sliding frame can slide within the sliding groove.

5. The earthmoving vehicle with a two-section adjustable slope for its cargo compartment according to claim 3, characterized in that, The sliding frame is a U-shaped frame and is provided with a corresponding second crossbar. The two arm ends of the U-shaped frame are provided with through holes. The two ends of the second crossbar are respectively rotatably disposed in the two through holes. The other end of the second hydraulic cylinder is rotatably connected to the second crossbar.

6. The earthmoving vehicle with a two-section adjustable slope for its cargo compartment according to claim 5, characterized in that, The two ends of the second crossbar are provided with protrusion structures to ensure that it is connected to the two through holes and will not fall off.

7. The earthmoving vehicle with a two-section adjustable slope for the carriage according to any one of claims 1-6, characterized in that, The second end of the carriage is movably connected to a carriage door, which can be opened at any time to facilitate the unloading of loaded goods.

8. The earthmoving vehicle with a two-section adjustable slope for the cargo compartment according to claim 7, characterized in that, A movable connecting component is provided between the carriage door and the carriage, which includes a fixed plate, a connecting body and a slide rail. The fixed plate is fixedly installed in the carriage. The top of the connecting body is rotatably connected to the right side of the fixed plate. The connecting body is slidably connected to the slide rail. The slide rail is fixedly connected to the carriage door.

9. The earthmoving vehicle with a two-section adjustable slope for its cargo compartment according to claim 8, characterized in that, Corresponding to the carriage door, the inner walls on the left and right sides of the carriage are respectively provided with rotating arms that can be rotated. The first end of the rotating arm is rotatably connected to the carriage door, and the second end of the rotating arm is connected to the carriage through a first fixing device. The first fixing device is fixedly connected to the carriage, and the second end of the rotating arm is rotatably connected to the first fixing device. A torsion spring is connected to the second end of the rotating arm. One end of the torsion spring is connected to the rotating arm, and the other end is fixedly connected to the carriage.

10. The earthmoving vehicle with a two-section adjustable slope for the cargo compartment according to claim 9, characterized in that, The other end of the torsion spring is fixedly connected to the carriage by a second fastener.

Images