A tipper

Abstract

This invention relates to a tipper truck, belonging to the field of transportation vehicle technology. It includes a chassis frame, a truck bed, and a rotating frame. There is a first hinge point between the rotating frame and the chassis frame, and a second hinge point between the rotating frame and the truck bed. During the tipping and unloading process of the truck bed relative to the chassis frame, the truck bed can sequentially undergo tipping around the first hinge point and the second hinge point. During the tipping process, a small force is used, and the truck bed can be tipped to different states depending on the degree of material unloading, to achieve complete material unloading. The structure is novel and highly flexible.

Description

Technical Field

[0001] This invention belongs to the field of transportation technology, and specifically relates to a dump truck. Background Technology

[0002] A dump truck is a short-distance material transport vehicle with a tilting cargo box. Due to its low cost, simple maintenance, convenient operation, and wide application, dump trucks are suitable for short-distance transportation of sand, gravel, earth, coal, ore, or other bulk materials. They are a very practical transportation device in daily object handling.

[0003] Most existing dump trucks use a single rotating shaft to connect the dump truck to the frame. The dump truck unloads materials by rotating the dump truck around the rotating shaft. However, when the dump truck rotates to its limit position, some materials may still remain inside the truck. In this case, a force needs to be applied to the entire dump truck to make the dump truck continue to rotate at a certain angle to unload all the materials. The entire unloading process is cumbersome and labor-intensive. Summary of the Invention

[0004] In view of the various shortcomings of existing technologies, and in order to solve the above problems, a dump truck is proposed.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A tipper truck includes a chassis frame, a truck bed, and a rotating frame. There is a first hinge point between the rotating frame and the chassis frame, and a second hinge point between the rotating frame and the truck bed. During the tipping and unloading process of the truck bed relative to the chassis frame, the truck bed can sequentially undergo tipping around the first hinge point and the second hinge point.

[0007] The invention is further configured such that the rotating frame has a connecting end, the rotating frame is hinged to a second hinge point via the connecting end, and the rotating frame has a free end away from the connecting end.

[0008] The invention is further configured such that, when the truck bed is not overturned, the center of gravity of the truck bed and the second hinge point are located on both sides of the first hinge point.

[0009] The invention is further configured such that, at the beginning of the truck bed flipping, the truck bed is linked with the rotating frame, and the truck bed flips around the first hinge point with the rotating frame until the rotating frame can no longer flip. Then, the truck bed can continue to flip around the second hinge point. When the center of gravity of the truck bed and the second hinge point are on the same vertical line, the rotating frame can no longer flip.

[0010] The invention is further configured such that when the truck bed can continue to rotate around the second hinge point until the rear end of the truck bed touches the plane where the dump wheel is located, the center of gravity of the truck bed and the first hinge point are located on both sides of the second hinge point.

[0011] The invention is further configured such that when the bucket is flipped to the point where its rear end touches the plane where the tipper wheel is located, the free end, after being subjected to force, can push the bucket to continue flipping around the second hinge point.

[0012] The present invention is further configured such that the connecting end and the free end are located on both sides of the first hinge point, and the connecting end, the free end and the first hinge point are not located on the same straight line.

[0013] The invention is further configured such that the rotating frame is an arc-shaped structure, with a connecting end and a free end at the two ends of the arc-shaped structure, the first hinge point being located in the middle part of the arc-shaped structure, and the opening of the arc-shaped structure facing the truck bed.

[0014] The present invention is further configured such that the resistance arm between the connecting end and the first hinge point is smaller than the power arm between the free end and the first hinge point.

[0015] The present invention is further configured such that a connecting rod is provided on the chassis frame, and the connecting rod is hinged to the rotating frame to form the first hinge point.

[0016] The invention is further configured to include a connecting frame, which is located between the truck bed and the chassis frame, and the connecting frame is linked to the truck bed.

[0017] The present invention is further configured such that the rear end of the connecting frame is hinged to the connecting end to form the second hinge point.

[0018] The present invention is further configured such that the width of the connecting frame is greater than the width of the chassis frame, and the width of the rotating frame is less than the width of the chassis frame.

[0019] The present invention is further configured such that a female switch is provided at the front end of the truck bed, and an open switch is provided on the chassis frame that locks with the female switch.

[0020] The invention is further configured such that the ends of the mother switch and the open switch have hooks facing different directions to lock the truck bed.

[0021] The present invention is further configured such that the rear end of the chassis frame is connected to a rear wheel via a rear wheel axle, the front end of the chassis frame is connected to a front frame, and the front frame is connected to a front wheel via a front wheel axle.

[0022] The invention is further configured such that a handlebar is hinged to the front frame, and a handle is connected to the end of the handlebar.

[0023] The beneficial effects of this invention are:

[0024] 1. The rotating frame, chassis frame, and cargo box each have hinge points. During the cargo box tilting process, depending on the degree of material unloading, a small force can be used to tilt the cargo box to different states to achieve complete material unloading. The structure is novel and highly flexible.

[0025] 2. The truck bed is hinged to the rotating frame via a connecting frame, which avoids wear on the truck bed at the hinge point and thus effectively extends the service life of the truck bed.

[0026] 3. Both the connecting frame and the chassis frame provide support for the truck bed, improving its stability.

[0027] 4. When the dump truck is not tipped over, the center of gravity of the dump truck and the second hinge point are located on both sides of the first hinge point, which improves the stability of the dump truck.

[0028] 5. The main switch and the open switch are locked together to improve the stability of the truck bed during material transportation. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 This is a diagram showing the cargo bed in an un-overturned state;

[0031] Figure 3 This is a schematic diagram of the truck bed tipping over once.

[0032] Figure 4 This is a schematic diagram of the truck bed tipping over twice;

[0033] Figure 5 This is a schematic diagram of the truck bed tipping over three times;

[0034] Figure 6 This is an assembly diagram of the chassis frame, rotating frame, and connecting frame in this invention;

[0035] Figure 7 This is a schematic diagram of the rotating frame and connecting frame assembly in this invention;

[0036] Figure 8 This is a schematic diagram of the rotating frame in this invention;

[0037] Figure 9 This is a schematic diagram of the assembly of the mother switch and the public switch in this invention.

[0038] In the attached diagram: 1-Chassis frame, 2-Cargo bed, 3-Rotating frame, 301-Connecting end, 302-Free end, 4-First hinge point, 5-Second hinge point, 6-Connecting frame, 601-Crossbeam, 602-Longitudinal beam, 7-Handlebar, 8-Handle handle, 9-First link, 10-Second link, 11-Third link, 12-Connecting shaft, 13-Connecting tube, 14-Connecting rod, 15-Open switch, 16-Main switch, 17-Handle handle, 18-Switch base, 19-Limit block, 20-Front frame. Detailed Implementation

[0039] To enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Based on the embodiments in this application, other similar embodiments obtained by those skilled in the art without creative effort should all fall within the scope of protection of this application. Furthermore, directional terms mentioned in the following embodiments, such as "up," "down," "left," and "right," are only for reference to the directions in the accompanying drawings; therefore, the directional terms used are for illustrative purposes and not for limiting the invention.

[0040] Example 1:

[0041] like Figure 1 As shown, a dump truck includes a chassis frame 1, a dump truck 2, and a rotating frame 3. There is a first hinge point 4 between the rotating frame 3 and the chassis frame 1, and there is a second hinge point 5 between the rotating frame 3 and the dump truck 2. During the process of dump truck 2 tipping over and unloading relative to the chassis frame 1, dump truck 2 can sequentially undergo tipping around the first hinge point 4 and the second hinge point 5.

[0042] Specifically, the rotating frame 3 has a connecting end 301, which is hinged to the second hinge point 4. At the same time, the rotating frame 3 has a free end 302 away from the connecting end 301.

[0043] like Figure 2 As shown, when the truck bed 2 is not tilted, the center of gravity of the truck bed 2 and the second hinge point 5 are located on both sides of the first hinge point 4, which improves stability. It is worth noting that the truck bed 2 not tilting means that the truck bed 2 and the chassis frame 1 remain relatively parallel, and the free end 302 abuts against the bottom of the truck bed 2, applying a supporting force to the truck bed 2.

[0044] like Figure 3 As shown, at the beginning of the flipping of the truck bed 2, the truck bed 2 is linked with the rotating frame 3. The truck bed 2 flips around the first hinge point 4 with the rotating frame 3 until the rotating frame 3 can no longer flip. Then, the truck bed 2 can continue to flip around the second hinge point 5. This process is one flip of the truck bed 2. When the center of gravity of the truck bed 2 and the second hinge point 5 are on the same vertical line, the rotating frame 3 can no longer flip.

[0045] It is worth noting that at the beginning of the tipping of the dump truck 2, the dump truck 2 and the rotating frame 3 tilt together. Under the influence of the gravity of the dump truck 2 (including the gravity of the material), the dump truck 2 and the rotating frame 3 tilt around the first hinge point 4. The center of gravity of the dump truck 2 gradually moves towards the rear end of the dump truck 2. When the center of gravity of the dump truck 2 and the second hinge point 5 are on the same vertical line, the tilting of the dump truck 2 and the rotating frame 3 is disengaged, and the rotating frame 3 stops tilting. After this, the dump truck 2 can continue to tilt around the second hinge point 5. Here, the rear end of the dump truck 2 is defined as the end away from the dump truck handle.

[0046] like Figure 4 As shown, when the truck bed 2 continues to flip around the second hinge point 5 until the rear end of the truck bed 2 touches the plane where the tipper wheel is located, the center of gravity of the truck bed 2 and the first hinge point 4 are located on both sides of the second hinge point 5 respectively. This process is the second flip of the truck bed 2.

[0047] It is worth noting that when the truck bed 2 continues to rotate around the second hinge point 5 until the rear end of the truck bed 2 touches the plane where the tipper wheel is located, the plane where the tipper wheel is located abuts against the rear end of the truck bed 2, restricting the truck bed 2 from continuing to rotate. At this time, the center of gravity of the truck bed 2 and the first hinge point 4 are located on both sides of the second hinge point 5. Specifically, the center of gravity of the truck bed 2 is located between the second hinge point 5 and the part where the rear end of the truck bed 2 abuts against the plane where the tipper wheel is located.

[0048] like Figure 5 As shown, when the bucket 2 flips to the point where its rear end touches the plane where the tipper wheel is located, the free end 302, after being subjected to force, can push the bucket 2 to continue flipping around the second hinge point 5. This process is the three flips of the bucket 2.

[0049] It is worth noting that when the truck bed 2 flips to the point where its rear end touches the plane where the tipper wheel is located, the operator steps on the free end 302 with his foot (i.e., applies force to the free end 302), causing the rotating frame 3 to flip in the opposite direction relative to the truck bed 2 around the first hinge point 4. During the reverse flipping process of the rotating frame 3, the connecting end 301 applies a pulling force to the truck bed 2, pulling the truck bed 2 to continue flipping around the second hinge point 5 until the truck bed 2 is in a vertical state.

[0050] In summary, during the tipping process of the truck bed 2, the degree of material unloading can be observed, and the truck bed 2 can be tipped to different states to achieve complete material unloading, demonstrating high flexibility.

[0051] Specifically, the connecting end 301 and the free end 302 are located on both sides of the first hinge point 4, and the connecting end 301, the free end 302 and the first hinge point 4 are not located on the same straight line.

[0052] like Figures 6 to 8As shown, in this embodiment, the rotating frame 3 is an arc-shaped structure. The two ends of the arc-shaped structure are a connecting end 301 and a free end 302, respectively. The first hinge point 4 is located in the middle part of the arc-shaped structure, and the opening of the arc-shaped structure faces the truck bed 2. It is worth noting that the connecting end 301, the free end 302, and the first hinge point 4 constitute a lever structure. At the same time, the connecting end 301 is connected to the second hinge point 5.

[0053] Specifically, the resistance arm between the connecting end 301 and the first hinge point 4 is smaller than the power arm between the free end 302 and the first hinge point 4. In other words, a small force can be applied to the free end 302 to push the rotating frame 3 to rotate around the first hinge point 4, thereby achieving the purpose of saving effort again.

[0054] It is worth noting that two rotating frames 3 are symmetrically arranged along the width direction of the dump truck, and the free ends of the two rotating frames 3 are connected by a first connecting rod 9 to improve stability. Preferably, the first connecting rod 9 is a round tube to reduce the friction between the first connecting rod 9 and other parts in contact with it.

[0055] It is worth noting that, in order to improve the strength of the rotating frame 3, a second connecting rod 10 is provided between the connecting end 301 and the free end 302.

[0056] Specifically, the chassis frame 1 is provided with a connecting rod 14, which is hinged to the rotating frame 3 to form the first hinge point 4.

[0057] It is worth noting that the rotating frame 3 has a third connecting rod 11 in the middle, and the third connecting rod 11 is rotatably connected to the connecting rod 14 through a sleeve assembly.

[0058] It is worth noting that in this embodiment, the third connecting rod 11 is a hollow round tube, and a connecting shaft 12 is connected between the connecting rod 14 and the third connecting rod 11. Specifically, the connecting shaft 12 passes through the third connecting rod 11, and the connecting shaft 12 and the third connecting rod 11 are clearance-fitted. At the same time, the end of the connecting shaft 12 is connected to the connecting rod 14 to ensure that the rotating frame 3 can rotate relative to the chassis frame 1.

[0059] It is worth noting that a connecting tube 13 is sleeved on the connecting shaft 12 between the third connecting rod 11 and the connecting rod 14 to prevent the third connecting rod 11 and the connecting rod 14 from directly contacting each other and causing wear.

[0060] It is worth noting that the connecting shaft 12 passes through the third link 11 on both rotating frames 3. The connecting shaft 12 and the first link 9 integrate the two rotating frames 3 into one, achieving synchronous rotation.

[0061] like Figure 1 , Figures 6 to 8As shown, it also includes a connecting frame 6, which is located between the truck bed 2 and the chassis frame 1, and the connecting frame 6 is linked with the truck bed 2.

[0062] Specifically, the rear end of the connecting frame 6 is hinged to the connecting end 301 to form the second hinge point 5. It is worth noting that the truck bed 2 is hinged to the rotating frame 3 through the connecting frame 6, which avoids wear on the truck bed 2 caused by the second hinge point 5, thereby effectively extending the service life of the truck bed 2.

[0063] In this embodiment, the width of the connecting frame 6 is greater than the width of the chassis frame 1, and the width of the rotating frame 3 is less than the width of the chassis frame 1. That is, the rotating frame 3 is located inside the chassis frame 1, and the connecting frame 6 is located outside the chassis frame 1.

[0064] Specifically, in this embodiment, the connecting frame 6 includes a crossbeam 601 and a longitudinal beam 602 connected to the end of the crossbeam 601. The crossbeam 601 is arranged along the width direction of the chassis frame 1, and the longitudinal section of the longitudinal beam 602 is a right angle, with one side of the right angle located above the chassis frame 1 and the other side located to the side of the chassis frame 1. Preferably, multiple crossbeams 601 are arranged parallel to each other. The crossbeams 601 and longitudinal beams 602 are connected to the truck bed 2 by bolts and nuts. In addition, the crossbeam 601 is provided with a connecting lug, which is hinged to the connecting end 301 to form a second hinge point 5.

[0065] Specifically, such as Figure 1 and Figure 9 As shown, the front end of the truck bed 2 is provided with a female switch 16, and the chassis frame 1 is provided with a public switch 15 that is locked in place with the female switch 16.

[0066] Preferably, the mother switch 16 includes a switch plate, which is connected to the truck bed 2 via a switch base 18. The open switch 15 includes a snap-fit ​​plate, and the ends of the snap-fit ​​plate and the switch plate have snap-fit ​​hooks facing different directions. That is, the truck bed 2 is locked in place by two snap-fit ​​hooks engaging with each other.

[0067] Specifically, the switch plate is provided with a handle 17 perpendicular to it, the handle 17 is linked with the switch plate, and the switch plate, handle 17 and switch base 18 are hinged together. The switch plate has a limiting block 19, preferably a wedge-shaped block.

[0068] It is worth noting that pressing the handle 17 causes the locking plate and the switch plate to engage, locking the truck bed and improving the stability of the truck bed 2. Pulling the handle 17 causes its end to abut against the inclined surface of the wedge block, which can separate the locking plate and the switch plate, releasing the truck bed from locking, and also allows the truck bed 2 to be lifted with a small force to achieve a flip.

[0069] Specifically, the rear end of the chassis frame 1 is connected to a rear wheel via a rear wheel axle, and the front end of the chassis frame 1 is connected to a front frame 20, which is connected to a front wheel via a front wheel axle. Furthermore, the front frame 20 is equipped with a handlebar 7 hinged thereto, and a handlebar 8 is connected to the end of the handlebar 7. Force is applied to the dump truck via the handlebar 8 and the handlebar 7 to move the dump truck.

[0070] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of this application should still fall within the scope of the present invention.

Claims

1. A dump truck, comprising a chassis frame and a dump truck bed, characterized in that, It also includes a rotating frame, with a first hinge point between the rotating frame and the chassis frame, and a second hinge point between the rotating frame and the truck bed. During the process of the truck bed being overturned and unloaded relative to the chassis frame, the truck bed can sequentially undergo overturning around the first hinge point and the second hinge point. The rotating frame has an arc-shaped structure with a connecting end and a free end at its two ends. The first hinge point is located in the middle part of the arc-shaped structure, and the opening of the arc-shaped structure faces the truck bed. The rotating frame is hinged to the second hinge point through the connecting end. The connecting end and the free end are located on both sides of the first hinge point, and the connecting end, the free end, and the first hinge point are not on the same straight line. The resistance arm between the connecting end and the first hinge point is less than the power arm between the free end and the first hinge point. At the start of the tipping, the truck bed is linked to the rotating frame. The truck bed rotates around the first hinge point with the rotating frame until the rotating frame can no longer rotate. Then, the truck bed can continue to rotate around the second hinge point. The rotating frame can no longer rotate when the center of gravity of the truck bed and the second hinge point are on the same vertical line. When the truck bed can continue to rotate around the second hinge point until its rear end touches the plane of the tipper wheel, the center of gravity of the truck bed and the first hinge point are located on opposite sides of the second hinge point. After the truck bed rotates until its rear end touches the plane of the tipper wheel, the free end, under force, can push the truck bed to continue to rotate around the second hinge point.

2. A dump truck according to claim 1, characterized in that, When the truck bed is not tilted, the center of gravity of the truck bed and the second hinge point are located on both sides of the first hinge point.

3. A dump truck according to claim 1, characterized in that, The chassis frame is provided with a connecting rod, which is hinged to the rotating frame to form the first hinge point.

4. A dump truck according to claim 1, characterized in that, It also includes a connecting frame, which is located between the truck bed and the chassis frame, and the connecting frame is linked to the truck bed.

5. A dump truck according to claim 4, characterized in that, The rear end of the connecting frame is hinged to the connecting end to form the second hinge point.

6. A dump truck according to claim 4, characterized in that, The width of the connecting frame is greater than the width of the chassis frame, and the width of the rotating frame is less than the width of the chassis frame.

7. A dump truck according to claim 1, characterized in that, The front end of the truck bed is equipped with a master switch, and the chassis frame is equipped with a public switch that locks into the master switch.

8. A dump truck according to claim 7, characterized in that, The ends of the mother switch and the public switch have snap hooks facing different directions.

9. A dump truck according to claim 1, characterized in that, The rear end of the chassis frame is connected to the rear wheel via the rear wheel axle, and the front end of the chassis frame is connected to the front frame, which is connected to the front wheel via the front wheel axle.

10. A dump truck according to claim 9, characterized in that, The front frame is equipped with a handlebar that is hinged thereto, and the end of the handlebar is connected to a grip.

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