Full-automatic discharging truck carriage for road maintenance
By designing a fully automated unloading truck body and using hydraulic cylinders and drive motors to drive scrapers, the problem of time-consuming manual unloading has been solved, realizing automated material unloading and improving the efficiency of road maintenance projects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-06
- Publication Date
- 2026-04-03
AI Technical Summary
In road maintenance, existing technology requires manual operation to remove materials from truck cargo compartments, which is time-consuming and affects the project schedule.
Design a fully automatic material discharge truck body. The hydraulic cylinder drives the tie rod and docking arm to flip and tilt. Combined with the side tilting plate and conveyor belt assembly, the material is automatically discharged. The hydraulic cylinder and drive motor drive the scraper to scrape the material out.
It has enabled automated material discharge, reduced manual operation time, and improved the project schedule efficiency of road maintenance.
Smart Images

Figure CN224075644U_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of truck bodies, specifically a fully automated road maintenance truck body with material discharge. Background Technology
[0002] Cargo trucks, generally referred to as cargo trucks or lorries, include dump trucks, tractor trucks, off-road trucks for off-highway and roadless areas, and various vehicles manufactured for special needs.
[0003] This invention involves building a cargo compartment on a freight truck for material transport. Some materials are stored in the compartment. During material unloading, manual entry into the compartment is required to remove the materials. In road maintenance, manually removing materials is time-consuming and affects the project schedule. Summary of the Invention
[0004] The purpose of this invention is to provide a fully automated unloading truck body for road maintenance, in order to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A fully automatic unloading road maintenance truck includes a cargo box. A hydraulic cylinder body is fixedly connected to the top side of the cargo box. A pull rod is hinged to the pushing end of the hydraulic cylinder body, and an axle seat is mounted on the outside of the pull rod. The bottom of the axle seat is fixedly connected to the top of the cargo box. A docking arm is hinged to the front end of the pull rod. A top flap is hinged to the end of the docking arm away from the pull rod. A hinged arm is hinged to the lower part of the inner wall of the top flap. The hinged arm is hinged to the upper part of the outer wall of the cargo box. A rear plate is installed on the back of the cargo box. A crossbeam is welded to the center of the rear plate. The lower surface of the crossbeam has a left... Both sides are equipped with hinge components 1. The bottom of the two sets of hinge components 1 are equipped with opening and closing tailgates. The lower part of the back of the vehicle body is equipped with a discharge chute. The back of the crossbeam is hinged with a hydraulic cylinder 1. The telescopic end of the hydraulic cylinder 1 is equipped with a connecting arm. The connecting arm is hinged to the back of the opening and closing tailgate. The inner cavity of the vehicle body is equipped with a conveyor belt assembly. The outer wall of the vehicle body is equipped with a side flap that opens and closes. The bottom of the side flap is equipped with a lower beam support. The side flap and the lower beam support are hinged with a second hinge component. The outer wall of the lower beam support and the outer wall of the side flap are equipped with a second hydraulic cylinder.
[0007] As a further embodiment of the present invention: a welding block is fixedly connected to the upper part of the outer wall of the lower beam support bar, a second hydraulic cylinder is hinged to the welding block, a shaft is installed at the telescopic end of the second hydraulic cylinder, and assembly blocks are rotatably connected to both ends of the shaft, and the assembly blocks are fixedly connected to the outer wall of the side flap.
[0008] As a further embodiment of the present invention: a side plate is fixedly connected to the lower part of the outer wall of the side flap, a shaft seat is provided on the inner side of the side plate, the shaft seat is fixedly connected to the outer wall of the side flap, a connecting shaft is installed at the axial center of the shaft seat, and both ends of the connecting shaft are installed on the inner side of the two sets of side plates.
[0009] As a further embodiment of the present invention: the conveyor belt assembly includes an assembly frame for mounting in the inner frame of the box, and a drive motor is installed at the active end of the assembly frame. The drive end of the drive motor is fixedly connected to a drive shaft, and a belt is drivenly connected to the outer wall of the drive shaft.
[0010] As a further embodiment of the present invention: a driven shaft is installed on the driven end of the assembly frame, and the outer wall of the driven shaft is connected to a belt drive.
[0011] As a further embodiment of the present invention: the front and rear ends of the assembly frame are each equipped with a bearing housing body, and the two sets of bearing housing bodies are respectively assembled with the ends of the drive shaft and the driven shaft.
[0012] As a further embodiment of the present invention: both the driven shaft and the driving shaft are equipped with chain wheels on their outer walls, and the outer walls of the chain wheels are connected to a chain for transmission. A scraper is fixedly connected to the inner side of the outer wall of the chain, and a belt is provided at the lower part of the scraper, and the belt is in contact with the scraper.
[0013] Compared with the prior art, the beneficial effects of the present invention are:
[0014] This invention controls the operation of a hydraulic cylinder to drive the extension and retraction of a pull rod. The docking arm connected to one end of the pull rod is hinged to the top tilting mechanism. Therefore, after the pivot extends and retracts, the docking arm flips and drives the top tilting mechanism to tilt to the side. At the same time, the hinged arm at the lower part of the top tilting mechanism is hinged to the outer wall of the box, thereby achieving stability during the top tilting and tilting process, and simultaneously closing the top of the box.
[0015] In this invention, the operation of a hydraulic cylinder two, which is hinged to the welding block and mounted on the lower beam support bar, is controlled to push the shaft to extend and retract. During the extension process, the shaft pushes the side flap plate connected to the assembly block forward. However, the side flap plate and the lower beam support bar are hinged through the hinge member two. Therefore, under the push of the hydraulic cylinder two, the side flap plate can only flip to the side and is perpendicular to the conveyor belt assembly.
[0016] In this invention, the drive motor is activated, and the chain wheel installed on the outer wall of the chain rotates. The chain wheel meshes with the chain, driving the chain transmission. Meanwhile, the scraper mounted on the inner side of the chain is on the belt. At the same time, the drive shaft connected to the drive end of the drive motor drives the belt, that is, the scraper scrapes the material on the belt. The belt and the scraper move synchronously. The material between the two sets of scrapers is pushed out by the scraper after reaching the discharge trough. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of a fully automated road maintenance truck body.
[0018] Figure 2 This is a side view of the cargo compartment of a fully automated road maintenance truck.
[0019] Figure 3 This is a rear view of the cargo compartment of a fully automated road maintenance truck.
[0020] Figure 4 This is an assembly drawing of the rear panel of the cargo compartment of a fully automated road maintenance truck.
[0021] Figure 5 This is a side view of the side flap in the cargo compartment of a fully automated road maintenance truck.
[0022] Figure 6 This is a structural diagram of a side-tipping plate in the cargo compartment of a fully automated road maintenance truck.
[0023] Figure 7 This is an assembly drawing of the side tipping plate in the cargo compartment of a fully automated road maintenance truck.
[0024] Figure 8 This is an assembly drawing of a conveyor belt assembly in the cargo compartment of a fully automated road maintenance truck.
[0025] In the diagram: 1. Cargo box; 2. Top tilting; 3. Connecting arm; 4. Hinge arm; 5. Tail door; 6. Rear panel; 7. Discharge chute; 8. Hydraulic cylinder body; 9. Tie rod; 10. Conveyor belt assembly; 11. Hydraulic cylinder one; 12. Connecting arm; 13. Hinge one; 14. Crossbeam; 15. Hydraulic cylinder two; 16. Side tilting plate; 17. Support leg; 18. Hinge two; 19. Welding block; 20. Belt; 21. Chain; 22. Driven shaft; 23. Drive motor; 24. Drive shaft; 25. Bearing seat body; 26. Scraper; 27. Side plate; 28. Assembly block; 29. Shaft; 30. Shaft seat; 31. Lower beam support bar. Detailed Implementation
[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0027] Please see Figures 1-3In this embodiment of the invention, a fully automatic road maintenance truck body includes a truck body 1. A hydraulic cylinder body 8 is fixedly connected to the top side of the truck body 1. A pull rod 9 is hinged to the pushing end of the hydraulic cylinder body 8, and a bearing seat is installed on the outside of the pull rod 9. The bottom of the bearing seat is fixedly connected to the top of the truck body 1. A docking arm 3 is hinged to the front end of the pull rod 9. A top tilting arm 2 is hinged to the end of the docking arm 3 away from the pull rod 9. A hinged arm 4 is hinged to the lower part of the inner wall of the top tilting arm 2. The hinged arm 4 is hinged to the upper part of the outer wall of the truck body 1. A rear plate 6 is installed on the back of the truck body 1. A crossbeam 14 is welded to the center of the rear plate 6. The lower surface of the crossbeam 14 has two sides. The vehicle body 1 is equipped with hinged joint 13. A tailgate 5 is installed at the bottom of the two sets of hinged joints 13. A discharge chute 7 is installed at the lower rear of the vehicle body 1. A hydraulic cylinder 11 is hinged to the back of the crossbeam 14. A connecting arm 12 is installed at the telescopic end of the hydraulic cylinder 11, and the connecting arm 12 is hinged to the back of the tailgate 5. A conveyor belt assembly 10 is installed inside the vehicle body 1. A side flap 16 is installed on the outer wall of the vehicle body 1. A lower beam support 31 is installed at the bottom of the side flap 16. A hinged joint 18 is hinged between the side flap 16 and the lower beam support 31. A hydraulic cylinder 15 is installed between the outer wall of the lower beam support 31 and the outer wall of the side flap 16. A welding block 19 is fixedly connected to the upper part of the outer wall. A hydraulic cylinder 25 is hinged to the welding block 19. A shaft 29 is installed at the telescopic end of the hydraulic cylinder 25. Assembly blocks 28 are rotatably connected to both ends of the shaft 29. The assembly blocks 28 are fixedly connected to the outer wall of the side flap 16. A side plate 27 is fixedly connected to the lower part of the outer wall of the side flap 16. A bearing seat 30 is provided on the inner side of the side plate 27. The bearing seat 30 is fixedly connected to the outer wall of the side flap 16. A connecting shaft is installed at the axial center of the bearing seat 30, and both ends of the connecting shaft are installed on the inner side of the two sets of side plates 27. The conveyor belt assembly 10 includes an assembly frame for assembly into the inner frame of the car body 1, and a drive motor is installed at the active end of the assembly frame. The drive end of the drive motor 23 is fixedly connected to the drive shaft 24. The outer wall of the drive shaft 24 is connected to the belt 20. The driven end of the assembly frame is equipped with a driven shaft 22. The outer wall of the driven shaft 22 is connected to the belt 20. The front and rear ends of the assembly frame are equipped with bearing housing bodies 25. The two sets of bearing housing bodies 25 are respectively assembled with the ends of the drive shaft 24 and the driven shaft 22. The outer walls of the driven shaft 22 and the drive shaft 24 are both equipped with sprockets. The outer walls of the sprockets are connected to the chain 21. The inner side of the outer wall of the chain 21 is fixedly connected to the scraper 26. The lower part of the scraper 26 is provided with the belt 20, and the belt 20 is in contact with the scraper 26.
[0028] The working principle of this invention is:
[0029] Step 1: Targeting the opening and closing of top flip 2;
[0030] By controlling the operation of the hydraulic cylinder body 8, the pull rod 9 is driven to extend and retract. The docking arm 3 connected to one end of the pull rod 9 is hinged to the top flip 2. Therefore, after the pull rod 9 extends and retracts, the docking arm 3 flips and drives the top flip 2 to flip to the side. At the same time, the hinge arm 4 hinged to the lower part of the top flip 2 is hinged to the outer wall of the car body 1, thereby achieving stability during the side flip of the top flip 2 and closing the top of the car body 1.
[0031] Step 2: Open and close the side flap 16 on the side of the carriage 1. The opened and closed side flap 16 is used to tilt the material inside the side flap 16 and discharge it onto the conveyor belt assembly 10 for transmission, so as to avoid the material remaining on the inner wall of the side flap 16.
[0032] The hydraulic cylinder 15, which is hinged to the welding block 19 and mounted on the lower beam support bar 31, is controlled to operate and push the shaft 29 to extend and retract. During the extension process, the shaft 29 will push the side flap 16 connected to the assembly block 28 forward. However, the side flap 16 and the lower beam support bar 31 are hinged by the hinge 18. Therefore, under the push of the hydraulic cylinder 15, the side flap 16 can only flip to the side and is perpendicular to the conveyor belt assembly 10.
[0033] The side plate 27 installed on the outer wall of the side flap 16, together with the upper bearing 30 and the connecting rod, is used to ensure the stability of the side flap 16 when the hydraulic cylinder 15 is in the returned position.
[0034] Step 3: Start the drive motor 23 to operate. Drive the drive motor 23 and the chain wheel installed on the outer wall of the chain 21 to rotate. The chain wheel meshes with the chain 21 and drives the chain 21 to drive. The scraper 26 installed on the inner side of the chain 21 is on the belt 20. At the same time, the drive shaft 24 connected to the drive end of the drive motor 23 will drive the belt 20. That is, the scraper 26 scrapes the material on the belt 20. The belt 20 and the scraper 26 move synchronously. The material between the two sets of scrapers 26 will be pushed out by the scraper 26 after reaching the discharge chute 7.
[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A full-automatic discharging truck bed for road maintenance, comprising a truck box (1), characterized in that: The top side of the car box (1) is fixedly connected with a hydraulic cylinder body (8), the pushing end of the hydraulic cylinder body (8) is hingedly connected with a pull rod (9), the outer portion of the pull rod (9) is provided with an axle seat, the bottom of the axle seat is fixedly connected with the top of the car box (1), the front end of the pull rod (9) is hingedly connected with a butt joint arm (3), the end of the butt joint arm (3) away from the pull rod (9) is hingedly connected with a top turnover (2), the inner wall lower portion of the top turnover (2) is hingedly connected with a hinge arm (4), the hinge arm (4) is hingedly connected with the upper portion of the outer wall of the car box (1). The back of the car box (1) is provided with a rear plate (6), the middle portion of the rear plate (6) is welded with a cross beam (14), the lower surface of the cross beam (14) is provided with a hinge piece one (13) on the left and right sides, the bottom of the two groups of hinge piece one (13) is provided with an opening and closing tail door (5), the lower portion of the back of the car box (1) is provided with a discharging notch (7), the back of the cross beam (14) is hingedly connected with a hydraulic cylinder one (11), the telescopic end of the hydraulic cylinder one (11) is provided with a connecting arm (12), the connecting arm (12) is hingedly connected with the back of the opening and closing tail door (5). The inner cavity of the car box (1) is provided with a conveying belt assembly (10), the outer wall of the car box (1) is provided with a side turnover plate (16) which is opened and closed, the bottom of the side turnover plate (16) is provided with a lower beam bracing strip (31), the hinge piece two (18) is hingedly connected between the side turnover plate (16) and the lower beam bracing strip (31), the outer wall of the lower beam bracing strip (31) and the outer wall of the side turnover plate (16) are provided with a hydraulic cylinder two (15).
2. The self-discharging truck bed for road maintenance of claim 1, wherein: The outer wall upper portion of the lower beam bracing strip (31) is fixedly connected with a welding block (19), the welding block (19) is hingedly connected with the hydraulic cylinder two (15), the telescopic end of the hydraulic cylinder two (15) is provided with a shaft rod (29), the both ends of the shaft rod (29) are rotatably connected with an assembly block (28), the assembly block (28) is fixedly connected with the outer wall of the side turnover plate (16).
3. The self-discharging truck bed for road maintenance of claim 1, wherein: The outer wall lower portion of the side turnover plate (16) is fixedly connected with a side plate (27), the inner side of the side plate (27) is provided with an axle seat (30), the axle seat (30) is fixedly connected with the outer wall of the side turnover plate (16), the shaft center portion of the axle seat (30) is provided with a connecting shaft, and the both ends of the connecting shaft are provided with the inner sides of the two groups of side plates (27).
4. The self-discharging truck bed for road maintenance of claim 1, wherein: The conveying belt assembly (10) comprises an assembly frame which is assembled in the inner frame of the car box (1), the driving end of the assembly frame is provided with a driving motor (23), the driving end of the driving motor (23) is fixedly connected with a driving shaft (24), the outer wall of the driving shaft (24) is drivingly connected with a belt (20).
5. The self-discharging truck bed for road maintenance of claim 4, wherein: The driven end of the assembly frame is provided with a driven shaft (22), the outer wall of the driven shaft (22) is drivingly connected with the belt (20).
6. The self-discharging truck bed for road maintenance of claim 4, wherein: The front and rear ends of the assembly frame are provided with bearing seat bodies (25), and the two groups of bearing seat bodies (25) are respectively assembled with the end heads of the driving shaft (24) and the driven shaft (22).
7. A self-discharging truck bed for road maintenance according to claim 6, characterized in that: The outer wall of the driven shaft (22) and the outer wall of the driving shaft (24) are provided with chain wheels, and the outer wall of the chain wheel is drivingly connected with a chain (21), the outer wall of the chain (21) is fixedly connected with a scraper (26), and the lower part of the scraper (26) is provided with a belt (20), and the belt (20) is in contact with the scraper (26).