A cargo bucket safety support structure

Abstract

The application discloses a kind of cargo bucket safety support structures, by setting multiple air bags on the frame, so that the cargo bucket is lifted by hydraulic rod, electric control three-way valve can open the communication passage of gas tank and air bag, so that air bag is inflated rapidly, so that the inflated air bag gradually abuts at the bottom end of T-shaped bottom plate, so that air bag can share the downward pressure of the entire cargo bucket, reduce the load of hydraulic rod, cargo bucket and frame hinge point, and when hydraulic rod fails, the downward pressure of cargo bucket is buffered by air bag, avoid the harm caused by sudden downward pressure of cargo bucket.

Description

Technical Field

[0001] This application relates to the field of safety support technology, and in particular to a cargo bucket safety support structure. Background Technology

[0002] A dump truck is a type of truck that uses hydraulic rods to lift the articulated cargo bed to a certain angle for unloading.

[0003] Currently, most unloading buckets are raised and lowered using a single hydraulic rod. The other side of the bucket is hinged to the vehicle frame below via a hinge rod. After the bucket is raised to a certain angle, the overall weight of the bucket is mostly borne by the single hydraulic rod and the hinge point. This places a huge load on the hydraulic rod and the hinge point, seriously affecting their service life and easily leading to problems such as hydraulic rod breakage and hinge point fracture, resulting in unstable safety hazards during unloading. Utility Model Content

[0004] This application proposes a cargo bin safety support structure, which has the advantages of airbag expansion to buffer the sudden downward pressure of the cargo bin, airbag contact with the cargo bin to increase the load-bearing area, and T-shaped bottom plate squeezing the airbag in conjunction with springs to drive the cargo to shake for rapid unloading, thereby solving the problem that the safety performance of existing cargo bins cannot be guaranteed.

[0005] To achieve the above objectives, this application adopts the following technical solution: a cargo bin safety support structure, including a frame, a cargo bin disposed on top of the frame, and a hinged hydraulic rod disposed at the center of the same end of the frame and the cargo bin for providing force for the cargo bin's vertical tilting movement; uniformly distributed air tanks are disposed on the frame, and uniformly distributed air bladders are disposed at the top of the frame, which, together with the inflating air bladders, provide safety for the cargo bin; an air distribution chamber is opened inside the frame, and uniformly distributed exhaust ports are opened at the top of the air distribution chamber to connect with the outside; an electrically controlled three-way valve is fixedly connected to the center of one side of the frame, one end of the electrically controlled three-way valve is connected to the air tank through a rubber tube, one end is connected to the air bladder through a rubber tube, and one end is connected to the air distribution chamber through a rubber tube, for controlling the direction of gas flow.

[0006] Preferably, symmetrical hinge rods are provided on the ends of the long sides of the vehicle frame away from the hydraulic rods, and symmetrical hinge blocks are provided on the bottom ends of the long sides of the cargo bucket away from the hydraulic rods. The hinge blocks are hinged to the hinge rods to provide a rotation base point when the cargo bucket is tilted.

[0007] Preferably, the end of the cargo bin away from the hydraulic rod is hinged with a cargo bin door, and when the cargo bin is not tilted, the bottom end contacts the top of the vehicle frame, so that the cargo bin can obtain a greater load distribution when loading goods.

[0008] Preferably, the vehicle frame has a mounting groove, and the gas tank is located in the mounting groove to prevent the cargo bed from directly contacting the gas tank.

[0009] Preferably, the top of the frame has evenly distributed grooves, and the airbag is located in the grooves to prevent the airbag from obstructing the bottom of the cargo box from directly contacting the top of the frame.

[0010] Preferably, the bottom of the inner cavity of the cargo hopper is hollow, and an inwardly extending block is provided around the bottom of the inner cavity of the cargo hopper. The top of the extension block is provided with evenly distributed springs, and the top of the spring is provided with a T-shaped bottom plate, which is used to provide the cargo with the force for vertical movement to quickly unload the cargo.

[0011] Preferably, the T-shaped bottom plate has a T-shaped cross-section, and the top four sides of the T-shaped bottom plate are fitted to the bottom of the inner side wall of the cargo hopper to prevent cargo leakage.

[0012] This application provides a cargo bed safety support structure. By installing multiple airbags on the chassis, when the cargo bed is lifted by the hydraulic rod, an electronically controlled three-way valve can open the communication channel between the air tank and the airbags, allowing the airbags to inflate rapidly. The inflated airbags gradually come into contact with the bottom of the T-shaped floor plate, enabling the airbags to share the downward pressure of the entire cargo bed, reducing the load on the hydraulic rod, cargo bed, and chassis hinge points. Furthermore, in the event of hydraulic rod failure, the downward pressure of the cargo bed will be buffered by the airbags, avoiding the hazards caused by the sudden downward pressure of the cargo bed.

[0013] Meanwhile, when the goods in the cargo bin are being unloaded, the rolling motion causes vibrations in the bin. These vibrations are transmitted to the airbags below through the T-shaped bottom plate. The airbags, with their elasticity and the spring force, exert a reciprocating force on the T-shaped bottom plate, causing the goods in the bin to be subjected to vertical forces, thus enabling the goods in the bin to be unloaded quickly. Attached Figure Description

[0014] The accompanying drawings, which form part of this specification, illustrate embodiments disclosed in this application and, together with the specification, serve to explain the principles disclosed in this application.

[0015] This disclosure will become clearer with reference to the accompanying drawings and the following detailed description, wherein: Figure 1 This is a schematic diagram of the three-dimensional structure of this utility model; Figure 2 This is a schematic diagram of the structural distribution on the frame of this practical vehicle; Figure 3 This is a schematic diagram of the frame structure of this practical vehicle; Figure 4 This is a schematic diagram of the structure of the cargo bin in this practical application; Figure 5 This is a schematic diagram showing the location of the T-shaped base plate structure in this practical application; Figure 6 For practical purposes Figure 5 A magnified view of the structure at point A in the middle.

[0016] The components include: 1. Frame; 2. Hydraulic rod; 3. Mounting slot; 31. Air tank; 4. Airbag; 5. Electrically controlled three-way valve; 6. Air distribution chamber; 61. Exhaust port; 7. Cargo bin; 71. Extension block; 72. Hinge block; 8. T-shaped bottom plate; 9. Spring; 10. Cargo bin door; 11. Hinge rod. Detailed Implementation

[0017] 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 some embodiments of this application, and not all 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.

[0018] Example 1 Please see Figures 1 to 2 A cargo box safety support structure includes a frame 1, with a hydraulic rod 2 hinged to the center of one end of the frame 1, and symmetrical hinge rods 11 fixedly connected to the ends of the long sides of the frame 1 away from the hydraulic rod 2.

[0019] See Figure 1 , Figures 4 to 6 A cargo bin 7 is provided on the top of the frame 1. Symmetrical hinge blocks 72 are fixedly connected to the bottom of the long side of the cargo bin 7 on the side away from the hydraulic rod 2. The hinge blocks 72 are hinged to the hinge rod 11, so that the cargo bin 7 can rotate through the hinge point of the hinge blocks 72 and the hinge rod 11 to complete the tilting action and tilt unloading.

[0020] See Figure 1 The top of the hydraulic rod 2 is hinged to the center of the end of the hopper 7 closest to the hydraulic rod 2, so that when the hydraulic rod 2 extends, it can drive the hopper 7 to tilt around the hinge rod 11 as the base point, and the hinged hydraulic rod 2 itself can also tilt to adapt to different tilt angles of the hopper 7.

[0021] See Figure 1 , Figures 4 to 6 The cargo bin 7 is hinged to a cargo bin door 10 at the end away from the hydraulic rod 2. When the cargo bin 7 is not tilted, the bottom end contacts the top end of the frame 1, so that when the cargo bin 7 is loaded, the load can be distributed through the contact surface with the frame 1.

[0022] See Figures 1 to 3The frame 1 has an installation groove 3, and an evenly distributed gas tank 31 is fixedly sleeved in the installation groove 3. The existence of the installation groove 3 provides a suitable installation position for the gas tank 31, so that the cargo box 7 will not press on the gas tank 31 when it is not tilted.

[0023] See Figures 1 to 3 The top of the frame 1 has evenly distributed grooves, and evenly distributed airbags 4 are fixedly fitted in the grooves. When the cargo box 7 is lifted by the hydraulic rod 2, the airbags 4 can quickly inflate and expand, so that the inflated airbags 4 gradually come into contact with the bottom of the cargo box 7. At this time, the airbags 4 stop inflating, so that the airbags 4 can share the downward pressure of the entire cargo box 7, reducing the load on the hydraulic rod 2, the cargo box 7 and the hinge point of the frame 1. In addition, when the hydraulic rod 2 fails, the sudden downward pressure of the cargo box 7 will be buffered by the airbags 4, avoiding the damage caused by the sudden downward pressure of the cargo box 7. Furthermore, the existence of the grooves provides storage space for the airbags 4 when they are not inflated, so that the uninflated airbags 4 will not obstruct the bottom of the cargo box 7 from contacting the top of the frame 1.

[0024] See figure Figure 3 The frame 1 has an air distribution chamber 6, and the top of the air distribution chamber 6 has evenly distributed exhaust ports 61 that connect to the outside. This allows the bottom of the cargo bucket 7 to press against the inflated airbag 4 when it is pressed down to reset after tilting and unloading. At this time, the airbag 4 is connected to the air distribution chamber 6, so that the gas in the airbag 4 is forced into the air distribution chamber 6 and discharged through the exhaust ports 61. The discharged gas will impact the downward-pressing cargo bucket 7, providing an upward resistance to the cargo bucket 7 and reducing the damage to the airbag 4 when the cargo bucket 7 is pressed down.

[0025] See Figures 1 to 2 An electronically controlled three-way valve 5 is fixedly connected to the center of one side of the frame 1.

[0026] One end of the electrically controlled three-way valve 5 is connected to the air tank 31 via a hose, another end is connected to the air bladder 4 via a hose, and the third end is connected to the air distribution chamber 6 via a hose. This allows the operator to open two of the openings of the electrically controlled three-way valve 5 when the cargo hopper 7 is lifted by the hydraulic rod 2, connecting the air tank 31 and the air bladder 4, causing the air bladder 4 to inflate until its top touches the bottom of the cargo hopper 7. The operator then closes the electrically controlled three-way valve 5 again, stopping the air tank 31 from supplying air to the air bladder 4. When the cargo hopper 7 is tilted and unloaded and then pressed back down, the operator can open two of the openings of the electrically controlled three-way valve 5, connecting the air bladder 4 and the air distribution chamber 6, allowing the gas inside the air bladder 4 to be continuously discharged under pressure.

[0027] Example 2 Please see Figures 4 to 6Based on Embodiment 1, the bottom of the inner cavity of the cargo hopper 7 is hollow, and an extension block 71 extending inward is provided around the bottom of the inner cavity of the cargo hopper 7. The top of the extension block 71 is fixedly connected to a uniformly distributed spring 9, and the top of the spring 9 is fixedly connected to a T-shaped bottom plate 8. When the goods in the cargo hopper 7 are unloaded, the rolling will cause vibration to the cargo hopper 7. At this time, the vibration will be transmitted to the airbag 4 below through the T-shaped bottom plate 8. Under its own elasticity, the airbag 4, in conjunction with the elastic force of the spring 9, provides a force for the T-shaped bottom plate 8 to move up and down, so that the goods in the cargo hopper 7 are subjected to the force in the vertical direction, thereby driving the goods in the entire cargo hopper 7 to be unloaded quickly.

[0028] See Figure 5 The cross-section of the T-shaped bottom plate 8 is T-shaped. The top and four sides of the T-shaped bottom plate 8 are in contact with the bottom of the inner side wall of the hopper 7. When loading goods, the goods can squeeze the T-shaped bottom plate 8 to gradually press down, so that the top and four sides of the T-shaped bottom plate 8 are in contact with the bottom of the inner side wall of the hopper 7, thus preventing leakage.

[0029] Example 3 Based on Embodiment 2, a pressure sensor can be installed at the top of the airbag 4. The pressure sensor is connected to the electrically controlled three-way valve 5, so that when the cargo hopper 7 suddenly falls, the bottom end can suddenly press against the pressure sensor. When the pressure exceeds the set value of the pressure sensor, the pressure sensor will transmit a signal to the electrically controlled three-way valve 5, causing the electrically controlled three-way valve 5 to open the connection between the airbag 4 and the air distribution chamber 6. This allows the gas in the airbag 4 to be transported to the air distribution chamber 6 through the electrically controlled three-way valve 5 and discharged through the exhaust port 61. This allows the airbag 4 to slowly exhaust at this time, preventing the airbag 4 from being subjected to a sudden increase in pressure and causing it to explode.

Claims

1. A cargo bucket safety support structure, characterized by, Includes a frame (1), with a cargo bin (7) provided above the frame (1), and a hinged hydraulic rod (2) provided at the center of the same end of the frame (1) and the cargo bin (7) to provide the force for the cargo bin (7) to tilt up and down; The frame (1) is provided with evenly distributed air tanks (31), and the top of the frame (1) is provided with evenly distributed airbags (4), which together with the inflated airbags (4) provide safety for the cargo box (7). The frame (1) has an air distribution chamber (6) inside, and the top of the air distribution chamber (6) has evenly distributed exhaust ports (61) that are connected to the outside. An electronically controlled three-way valve (5) is fixedly connected to the center of one side of the frame (1). One end of the electronically controlled three-way valve (5) is connected to the gas tank (31) through a rubber tube, one end is connected to the air bag (4) through a rubber tube, and one end is connected to the air distribution chamber (6) through a rubber tube, which is used to control the flow direction of the gas.

2. A cargo bed safety support structure according to claim 1, wherein The frame (1) has symmetrical hinge rods (11) on both sides of its long side away from the hydraulic rod (2), and the cargo bucket (7) has symmetrical hinge blocks (72) on both sides of its long side away from the hydraulic rod (2). The hinge blocks (72) are hinged to the hinge rods (11) to provide a rotation base point when the cargo bucket (7) is tilted.

3. A cargo bed safety support structure according to claim 2, wherein The cargo bin (7) is hinged to a cargo bin door (10) at the end away from the hydraulic rod (2). When the cargo bin (7) is not tilted, the bottom end contacts the top end of the frame (1) so that the cargo bin (7) can obtain a greater load distribution when loading goods.

4. A cargo bed safety support structure according to claim 1, wherein The frame (1) has an installation groove (3) and the gas tank (31) is located in the installation groove (3) to prevent the cargo box (7) from directly contacting the gas tank (31).

5. A cargo bed safety support structure according to claim 1, wherein The top of the frame (1) has evenly distributed grooves, and the airbag (4) is located in the grooves to prevent the airbag (4) from obstructing the bottom of the cargo box (7) from directly contacting the top of the frame (1).

6. A cargo bed safety support structure according to claim 1, wherein The bottom of the inner cavity of the cargo bin (7) is hollow. An extension block (71) extending inward is provided around the bottom of the inner cavity of the cargo bin (7). A spring (9) is evenly distributed at the top of the extension block (71). A T-shaped bottom plate (8) is provided at the top of the spring (9) to provide the cargo with the force for up and down movement for rapid unloading.

7. A cargo bed safety support structure according to claim 6, wherein The cross-section of the T-shaped bottom plate (8) is T-shaped, and the top four sides of the T-shaped bottom plate (8) are attached to the bottom of the inner side wall of the cargo hopper (7) to prevent leakage of goods.

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