Safe lifting mechanism of battery-replacing type pure electric dumper

Abstract

The utility model discloses a battery-changing type pure electric dumper safety lifting mechanism which comprises a frame and a container, an installation base is installed on the frame, a hydraulic oil cylinder is arranged on the installation base, a fixing groove is formed in one side of the installation base, a neutral position travel switch is installed in the fixing groove, and the neutral position travel switch is connected with the container. A fixing groove is formed in the mounting base, a relay is mounted in the fixing groove, fixing through grooves are formed in the two sides of the mounting base, fixing supporting plates are mounted in the fixing through grooves, contact sensors are mounted at the bottoms of the fixing supporting plates, two guide sliding rods are slidably connected to the fixing supporting plates, and the two guide sliding rods penetrate through the fixing supporting plates. A lifting pressing plate is installed at the top ends of the two guide sliding rods, and the guide sliding rods are sleeved with telescopic springs. The utility model has the beneficial effects that the vehicle can be prevented from running when the container is not put down, the safe running of the dumper is ensured, the safety of the dumper in the use process is improved, the service life is prolonged, and the detection precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of safety lifting technology for dump trucks, specifically a battery-swapping pure electric dump truck safety lifting mechanism. Background Technology

[0002] Dump trucks are vehicles that unload goods themselves by hydraulic or mechanical lifting. Because the loading compartment can automatically tilt at a certain angle to unload, they greatly save unloading time and labor, shorten transportation cycles, improve production efficiency, and reduce transportation costs. They are commonly used special-purpose transportation vehicles.

[0003] If a dump truck fails to lower and reset its cargo box after unloading, it may still be driven with the cargo box raised. This can easily lead to collisions with height restriction barriers, elevated structures, and other hazards, posing significant risks to business operations and public safety.

[0004] It should be noted that the above content falls within the inventor's technical knowledge and does not necessarily constitute prior art. Utility Model Content

[0005] The purpose of this invention is to solve the above problems by designing a battery-swapping pure electric dump truck safety lifting mechanism.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A safety lifting mechanism for a battery-swapping pure electric dump truck includes a frame and a cargo box. The rear of the cargo box is rotatably connected to the rear of the frame via a rotating assembly. A mounting base is installed on the frame, and a hydraulic cylinder is mounted on the mounting base. A fixing groove is provided on one side of the mounting base, and a neutral limit switch and a relay are installed in the fixing groove. Fixing through slots are provided on both sides of the mounting base, and fixing support plates are installed in the fixing through slots. A contact sensor is installed at the bottom of the fixing support plate, and the detection end of the contact sensor penetrates through the fixing support plate. Two guide rods are slidably connected to the fixing support plate, and the two guide rods penetrate through the fixing support plate. Lifting pressure plates are installed at the top of the two guide rods, and telescopic springs are fitted on the guide rods.

[0008] Furthermore, a limiting block is installed around the fixing groove, and a sealing cover plate is provided inside the fixing groove. The sealing cover plate is located on the limiting block and is fixed to the limiting block by screws.

[0009] Furthermore, there is a gap between the two sides of the fixed support plate and the inner wall of the fixed through groove, the lifting pressure plate is a triangular plate, the side of the lifting pressure plate extends beyond the two sides of the fixed support plate, one end of the telescopic spring is fixedly connected to the lifting pressure plate, and the other end of the telescopic spring is fixedly connected to the fixed support plate.

[0010] Furthermore, a cushioning pad is installed at the bottom of the cargo box, and the cushioning pad is in contact with the surface of the mounting base.

[0011] Furthermore, the hydraulic cylinder is a multi-stage cylinder, with one end of the cylinder body rotatably hinged to the vehicle frame, and the telescopic end of the hydraulic cylinder rotatably hinged to the cargo box.

[0012] Compared with existing technologies, this technical solution has the following beneficial effects:

[0013] The system detects whether the dump truck is in neutral by using a neutral limit switch. Only when the truck is in neutral can the cargo box be lifted. The system also detects whether the cargo box has been lowered and reset by using a contact sensor. Only after the cargo box has been lowered and reset can the dump truck be put into gear and driven. This system can prevent the vehicle from driving with the cargo box not lowered, ensuring the safe operation of the dump truck and improving the safety of the dump truck during use.

[0014] The sealing cover plate seals the fixing groove, preventing impurities such as coal and dust from entering the fixing groove, avoiding corrosion of the components and affecting their service life, and facilitating the disassembly and assembly of the sealing cover plate, making it convenient for the inspection and replacement of the components, thus improving work efficiency.

[0015] The lifting pressure plate is a triangular plate with a pointed top and downward-sloping sides. Coal, dust, and other impurities falling on the lifting pressure plate slide down along the sides. There are gaps between the sides of the fixed support plate and the inner wall of the fixed channel. The sides of the lifting pressure plate extend beyond the sides of the fixed support plate. Coal, dust, and other impurities can be discharged through the gaps between the fixed support plate and the inner wall of the fixed channel, preventing them from falling onto the contact sensor. This protects the contact sensor, avoids damage to it, increases its service life, and improves detection accuracy. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a battery-swapping pure electric dump truck safety lifting mechanism according to the present invention.

[0017] Figure 2 An enlarged sectional view of the mounting base.

[0018] Figure 3 This is a side sectional view of the mounting base.

[0019] In the diagram: 1. Frame; 2. Cargo box; 3. Rotating assembly; 4. Mounting base; 5. Hydraulic cylinder; 6. Fixing groove; 7. Neutral limit switch; 8. Relay; 9. Fixing through slot; 10. Fixing support plate; 11. Contact sensor; 12. Guide slide rod; 13. Lifting pressure plate; 14. Telescopic spring; 15. Limit block; 16. Sealing cover plate; 17. Buffer pad. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, in the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] This utility model provides, for example Figure 1-3 The safety lifting mechanism of a battery-swapping pure electric dump truck shown includes a frame 1 and a cargo box 2. The rear of the cargo box 2 is rotatably connected to the rear of the frame 1 via a rotating assembly 3. A mounting base 4 is installed on the frame 1. A hydraulic cylinder 5 is installed on the mounting base 4. A fixing groove 6 is provided on one side of the mounting base 4. A neutral limit switch 7 is installed in the fixing groove 6. A relay 8 is installed in the fixing groove 6. Fixing through grooves 9 are provided on both sides of the mounting base 4. Fixing support plates 10 are installed in the fixing through grooves 9. A contact sensor 11 is installed at the bottom of the fixing support plate 10. The detection end of the contact sensor 11 passes through the fixing support plate 10. Two guide rods 12 are slidably connected on the fixing support plate 10. The two guide rods 12 pass through the fixing support plate. A lifting pressure plate 13 is installed at the top of the two guide rods 12. A telescopic spring 14 is fitted on the guide rods 12.

[0023] When lifting the cargo box 2, the dump truck is put into neutral. After the neutral limit switch 7 detects that the dump truck is in neutral, the relay 8 supplies power to the hydraulic cylinder 5, which drives the cargo box 2 to be lifted. When the cargo box 2 is reset, the bottom of the cargo box 2 presses on the lifting plate 13. The lifting plate 13 applies pressure to the telescopic spring 14. The telescopic spring 14 deforms and contracts under pressure. The guide rod 12 moves downward along the fixed support plate 10. The lifting plate 13 moves downward and presses on the detection end of the contact sensor 11. The cargo box 2 is fully reset. When the contact sensor 11 detects that the cargo box 2 is not lowered, the dump truck cannot engage gear and drive. Only after the contact sensor 11 detects that the cargo box 2 is lowered can the dump truck engage gear and drive, ensuring the safe driving of the dump truck and improving the safety during the use of the dump truck.

[0024] Refer to the instruction manual appendix Figure 2 Limiting blocks 15 are installed around the fixed groove 6, and a sealing cover plate 16 is provided inside the fixed groove 6. The sealing cover plate 16 is located on the limiting block 15 and is fixed to the limiting block 15 by screws.

[0025] The sealing cover plate 16 seals the fixing groove 6, preventing impurities such as coal and dust from entering the fixing groove 6, avoiding corrosion of the components and affecting their service life, facilitating the disassembly and assembly of the sealing cover plate 16, and making it easier to inspect and replace the components, thus improving work efficiency.

[0026] Refer to the instruction manual appendix Figure 3 There is a gap between the two sides of the fixed support plate 10 and the inner wall of the fixed through groove 9. The lifting pressure plate 13 is a triangular plate with the side of the lifting pressure plate 13 extending beyond the two sides of the fixed support plate 10. One end of the telescopic spring 14 is fixedly connected to the lifting pressure plate 13, and the other end of the telescopic spring 14 is fixedly connected to the fixed support plate 10.

[0027] The lifting pressure plate 13 is a triangular plate with a pointed top and downward-sloping sides. Coal, dust, and other impurities falling on the lifting pressure plate 13 slide down along the sides. There are gaps between the sides of the fixed support plate 10 and the inner wall of the fixed through groove 9. The sides of the lifting pressure plate 13 extend beyond the sides of the fixed support plate 10. Coal, dust, and other impurities can be discharged through the gaps between the fixed support plate 10 and the inner wall of the fixed through groove 9, preventing coal, dust, and other impurities from falling on the contact sensor 11. This protects the contact sensor 11, prevents damage to it, improves its service life, and enhances the accuracy of detection.

[0028] Refer to the instruction manual appendix Figure 1 The bottom of the cargo box 2 is equipped with a buffer pad 17, which is in contact with the surface of the mounting base 4.

[0029] The impact of the cargo box 2 on the frame 1 can be reduced by the buffer pad 17, thus improving its service life.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A safety lifting mechanism for a battery-swapping pure electric dump truck, comprising a frame (1) and a cargo box (2), wherein the rear end of the cargo box (2) is rotatably connected to the rear end of the frame (1) via a rotating assembly (3), characterized in that, The frame (1) is equipped with a mounting base (4), the mounting base (4) is equipped with a hydraulic cylinder (5), the mounting base (4) is equipped with a fixing groove (6) on one side, the fixing groove (6) is equipped with a neutral limit switch (7), the fixing groove (6) is equipped with a relay (8), the mounting base (4) is equipped with fixing through grooves (9) on both sides, the fixing through grooves (9) are equipped with a fixing support plate (10), the bottom of the fixing support plate (10) is equipped with a contact sensor (11), the detection end of the contact sensor (11) passes through the fixing support plate (10), the fixing support plate (10) is slidably connected with two guide rods (12), the two guide rods (12) pass through the fixing support plate, the top of the two guide rods (12) is equipped with a lifting pressure plate (13), and the guide rods (12) are fitted with a telescopic spring (14).

2. The safety lifting mechanism for a battery-swapping pure electric dump truck according to claim 1, characterized in that, Limiting blocks (15) are installed around the fixed groove (6), and a sealing cover plate (16) is provided inside the fixed groove (6). The sealing cover plate (16) is located on the limiting block (15), and the sealing cover plate (16) is fixed to the limiting block (15) by screws.

3. The safety lifting mechanism for a battery-swapping pure electric dump truck according to claim 1, characterized in that, There is a gap between the two sides of the fixed support plate (10) and the inner wall of the fixed through groove (9). The lifting pressure plate (13) is a triangular plate. The side of the lifting pressure plate (13) extends beyond the two sides of the fixed support plate (10). One end of the telescopic spring (14) is fixedly connected to the lifting pressure plate (13), and the other end of the telescopic spring (14) is fixedly connected to the fixed support plate (10).

4. The safety lifting mechanism for a battery-swapping pure electric dump truck according to claim 1, characterized in that, The bottom of the cargo box (2) is equipped with a buffer pad (17), which is in contact with the surface of the mounting base (4).

5. A safety lifting mechanism for a battery-swapping pure electric dump truck according to claim 1, characterized in that, The hydraulic cylinder (5) is a multi-stage cylinder. One end of the cylinder body of the hydraulic cylinder (5) is rotatably hinged to the frame (1), and the telescopic end of the hydraulic cylinder (5) is rotatably hinged to the cargo box (2).

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