Safety hook device for preventing carriage of lifting dump truck from sliding down and falling off
By designing a combination of frame, cargo box and buffer mechanism on the lifting dump truck, the problem of hook device falling off during vibration and bumps is solved, achieving the effect of automatically preventing slippage and reducing vehicle vibration.
Patent Information
- Application Number
- CN202520459272.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-03-17
AI Technical Summary
The hook devices of existing lifting dump trucks are prone to accidental pull-out during vibration and bumps, which cannot effectively prevent the truck bed from sliding down and falling off. In addition, the operation is complicated and highly dangerous.
A safety hook device was designed, which includes a frame, cargo box, limit hook, and buffer mechanism. By combining the limit hook and the buffer mechanism, the hook can be automatically prevented from falling off, and the buffer mechanism can absorb and dissipate kinetic energy to reduce vehicle vibration.
It effectively prevents the carriage from falling off during vibration and bumps, reduces the difficulty of operation, improves safety and stability, and reduces the impact and vibration of vehicle components.
Smart Images
Figure CN223702389U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to lifting dump truck technical field especially relates to be used for lifting dump truck carriage anti -slip and fall's safety hook device. BACKGROUND
[0002] Lifting dump truck is mainly used for transporting bulk and can be scattered heap goods, such as sand, soil, ore and crops, can also be used for transporting piece goods, so dump truck mainly serves building material factory, mine and construction site.
[0003] In order to improve the transportation productivity, dump truck is usually used with loader, excavator and belt conveyor, realizes all transportation mechanization, and the quality utilization coefficient of dump truck is lower, is suitable for short-distance transportation, to give full play to the advantage of unloading mechanization.
[0004] The lifting dump truck main hook assembly in prior art contains limit hook, the bottom end of limit hook is rotatably connected on sliding block, and torsion spring is arranged between limit hook and sliding block, sliding block can slide along the length direction of support frame, the top end of limit hook has downward concave groove and downward inclined guide surface, the bottom end is connected with limit chain, sliding block and hopper side are connected with upward inclined tension spring, the outer side of support frame corresponds the upper installation of limit rod with groove, the bottom end of limit rod has the pressing part matched with guide surface, when hopper rises, limit hook slides up under the drive of tension spring and limit chain, limit hook rotates after guide surface contacts pressing part, resets under the action of torsion spring, groove is inserted into limit rod to realize the limiting of hopper, part hook device needs manual operation, and the labor intensity is big, and the efficiency is low, and the installation position is narrow, and the operation difficulty is big, and the risk coefficient is high, and the present research and development automatic and semi-automatic safety hook device, such as hook driven by hydraulic, pneumatic and electric, can realize the connection and separation of hook by driver in the cab through control button, at present, in the process of vehicle driving, due to vibration, the bolt can be accidentally pulled out, and cannot play the role of anti -slip and fall. UTILITARIAN CONTENT
[0005] In order to make up for the above insufficient, the utility model provides a safety hook device for lifting dump truck carriage anti -slip and fall, aims at improving the problem that in the process of vehicle driving in prior art, due to vibration, the bolt can be accidentally pulled out, and cannot play the role of anti -slip and fall.
[0006] To achieve the above objectives, this utility model adopts the following technical solution: a safety hook device for preventing slippage and detachment of a lifting dump truck body, comprising a frame, a cargo box rotatably connected to the rear side of the frame, plugs installed on both the left and right sides of the bottom wall of the cargo box, a limit rod fixedly connected to the middle of the plug, limit hooks installed on both the left and right ends of the plug, a limit plate installed on the inner side of the limit hook, a buckle rotatably connected to the top of the limit hook, a pin threadedly connected to the lower middle part of the limit hook, a lock head rotatably connected to the end of the pin, a fixing ring fixedly connected to the bottom end of the limit hook, an installation block fixedly connected to the outer side of the plug, a fixing plate installed on the outer side of the installation block, a locking block rotatably connected to the front side of the fixing plate, a screw threadedly connected to the middle of the locking block, a chassis fixedly connected to the top middle of the frame, and a buffer mechanism installed on the top front side of the chassis, the buffer mechanism being able to absorb and dissipate the energy generated by collisions and impacts of moving parts.
[0007] The above plan also includes:
[0008] The buffer mechanism includes a fixed block, which is equidistantly installed on the top front side of the chassis. A cavity is installed on the top of the fixed block, and a spring is installed inside the cavity. A protective plate is installed on the top of the spring. A support arm is installed in the middle of the fixed block, and a damping rod is fixedly connected to the top of the support arm. A spring is rotatably connected to the outer wall of the damping rod. A top plate is fixedly connected to the top of the protective plate, and a rubber plate is fixedly connected to the top of the top plate.
[0009] The rear side of the cargo box is rotatably connected to a door panel.
[0010] A tension spring is installed on the inner side of the second fixing ring, and a first fixing ring is installed at the end of the tension spring.
[0011] The cab is mounted on the front side of the vehicle frame, and rearview mirrors are mounted on both sides of the cab.
[0012] A hydraulic rod is installed on the front side of the cargo box.
[0013] The bottom of the frame is equidistantly connected to multiple tires.
[0014] A fuel tank is mounted on the right side of the vehicle frame.
[0015] This utility model has the following beneficial effects: 1. A plug is installed on both the left and right sides of the bottom wall of the cargo box. A limit rod is fixedly connected to the middle of the plug. A limit hook is installed on both the left and right ends of the limit rod. A limit plate is installed on the inner side of the limit hook. A buckle is rotatably connected to the top of the limit hook. A pin is threadedly connected to the lower middle part of the limit hook. A lock head is rotatably connected to the end of the pin. Pressing down the buckle, inserting the pin, and tightening the lock head prevents the limit hook from falling off. 2. In this utility model, the buffer mechanism can absorb and dissipate the energy generated by the moving parts due to collisions and impacts, avoiding direct energy transfer to the frame, reducing the vibration and shaking of the frame. The buffer device can make the stamping action more stable, avoiding excessive equipment vibration or even displacement due to sudden changes in stamping force, and ensuring the stability and accuracy of the stamping process.
[0016] The embodiments of this utility model will now be described in further detail with reference to the accompanying drawings. Attached Figure Description
[0017] Figure 1 This is a perspective view of the safety hook device for lifting dump truck bodies to prevent slippage and detachment, as proposed in this utility model.
[0018] Figure 2 This is a front view of the safety hook device for lifting dump truck bodies to prevent slippage and detachment, as proposed in this utility model.
[0019] Figure 3 This is a side view of the safety hook device for lifting dump truck bodies to prevent slippage and detachment, as proposed in this utility model.
[0020] Figure 4 This is a partial structural schematic diagram of the safety hook device for lifting dump truck bodies to prevent slippage and detachment, as proposed in this utility model.
[0021] Figure 5 This is a partial structural exploded view of the safety hook device for lifting dump truck bodies to prevent slippage and detachment proposed in this utility model.
[0022] Figure 6 This is a schematic diagram of the buffer mechanism of the safety hook device for lifting dump truck bodies to prevent slippage and detachment, as proposed in this utility model. Detailed Implementation
[0023] Reference Figures 1-6The diagram is illustrated below: 1. Frame; 2. Buffer mechanism; 201. Fixing block; 202. Cavity; 203. Spring 1; 204. Top plate; 205. Rubber plate; 206. Protective plate; 207. Spring 2; 208. Damping rod; 209. Support arm; 3. Cab; 4. Chassis; 5. Fixing ring 1; 6. Tension spring; 7. Hydraulic rod; 8. Cargo box; 9. Limiting rod; 10. Rearview mirror; 11. Door panel; 12. Tire; 13. Fuel tank; 14. Limiting plate; 15. Mounting block; 16. Buckle; 17. Fixing piece; 18. Limiting hook; 19. Lock head; 20. Plug; 21. Pin; 22. Screw; 23. Clamping block; 24. Fixing ring 2.
[0024] Reference Figure 1 , Figure 4 and Figure 5 This utility model provides an embodiment of a safety hook device for preventing slippage and detachment of a dump truck's cargo box. The device includes a frame 1, which is the basic structure of the vehicle, supporting its various components and bearing the weight of the vehicle and various forces during operation. A cargo box 8 is rotatably connected to the rear of the frame 1. The cargo box 8 is the part used for loading goods and is typically made of sheet metal. A plug 20 is installed on both the left and right sides of the bottom wall of the cargo box 8. A limit rod 9 is fixedly connected to the middle of the plug 20. Limit hooks 18 are installed on both the left and right ends of the plug 20. A limit plate 14 is installed inside the limit hook 18. A latch 16 is rotatably connected to the top of the limit hook 18. A pin 21 is threadedly connected to the lower middle part of the limit hook 18. A lock 19 is rotatably connected to the end of the pin 21. Pressing down the latch 16 inserts the pin 21, and tightening is achieved. The lock head 19 prevents the limit hook 18 from falling off. The bottom end of the limit hook 18 is fixedly connected to the second fixing ring 24. The outer side of the plug 20 is fixedly connected to the mounting block 15. The outer side of the mounting block 15 is equipped with the fixing plate 17. The front side of the fixing plate 17 is rotatably connected to the locking block 23. The middle of the locking block 23 is threadedly connected to the screw 22. The top center of the frame 1 is fixedly connected to the chassis 4. The front top of the chassis 4 is equipped with the buffer mechanism 2. The buffer mechanism 2 can absorb and dissipate the energy generated by the collision and impact of the moving parts. The rear side of the cargo box 8 is rotatably connected to the door panel 11. The door panel 11 is located at the rear of the cargo box 8 and is used for loading and unloading goods. It is usually equipped with door locks and other devices to ensure that the goods will not fall off during transportation. The inner side of the second fixing ring 24 is equipped with a tension spring 6. The end of the tension spring 6 is equipped with the first fixing ring 5.
[0025] Specifically, one embodiment of this utility model provides a safety hook device for preventing slippage and detachment of the lifting dump truck bed, including a frame 1. The frame 1 is the basic structure of the vehicle, used to support various components of the vehicle and bear the weight of the vehicle and various forces during driving. A cargo box 8 is rotatably connected to the rear side of the frame 1. The cargo box 8 is the part for loading goods and is usually made of metal sheet. A plug 20 is installed on both the left and right sides of the middle of the bottom wall of the cargo box 8. A limit rod 9 is fixedly connected to the middle of the plug 20. Limit hooks 18 are installed on both the left and right ends of the limit rod 9. The inner side of the limit hook 18 is fitted with a limit hook 18. A limit plate 14 is installed. The top of the limit hook 18 is rotatably connected to a buckle 16. The lower middle part of the limit hook 18 is threadedly connected to a pin 21. The end of the pin 21 is rotatably connected to a lock head 19. Pressing down the buckle 16, inserting the pin 21, and tightening the lock head 19 prevents the limit hook 18 from falling off. The bottom end of the limit hook 18 is fixedly connected to a fixing ring 24. The outer side of the plug 20 is fixedly connected to an installation block 15. The outer side of the installation block 15 is equipped with a fixing plate 17. The front side of the fixing plate 17 is rotatably connected to a locking block 23. The middle part of the locking block 23 is threadedly connected to a screw 22.
[0026] Reference Figure 1 , Figure 3 and Figure 6 The buffer mechanism 2 includes a fixed block 201, which is equidistantly installed on the top front side of the chassis 4. A cavity 202 is installed on the top of the fixed block 201, and a spring 203 is installed inside the cavity 202. A guard plate 206 is installed on the top of the spring 203. A support arm 209 is installed in the middle of the fixed block 201, and a damping rod 208 is fixedly connected to the top of the support arm 209. A spring 207 is rotatably connected to the outer wall of the damping rod 208. A top plate 20 is fixedly connected to the top of the guard plate 206. 4. A rubber plate 205 is fixedly connected to the top of the top plate 204. During the lifting and lowering of the cargo box 8, the damping rod 208 can absorb and buffer the impact and vibration caused by the weight and inertia of the cargo box, making the movement of the cargo box 8 more stable and reducing the impact on the vehicle chassis 4 and frame 1 components. The cab 3 is installed on the front side of the frame 1, and the rearview mirrors 10 are installed on both sides of the cab 3. A hydraulic rod 7 is installed on the front side of the cargo box 8. The hydraulic rod 7 is used to lift the cargo box 8 at a certain angle to realize the self-unloading function of the goods.
[0027] Specifically, the buffer mechanism 2 includes a fixed block 201, which is equidistantly installed on the top front side of the chassis 4. A cavity 202 is installed on the top of the fixed block 201, and a spring 203 is installed inside the cavity 202. A guard plate 206 is installed on the top of the spring 203. A support arm 209 is installed in the middle of the fixed block 201, and a damping rod 208 is fixedly connected to the top of the support arm 209. A spring 207 is rotatably connected to the outer wall of the damping rod 208. A top plate 2 is fixedly connected to the top of the guard plate 206. 04. A rubber plate 205 is fixedly connected to the top of the top plate 204. During the lifting and lowering of the cargo box 8, the damping rod 208 can absorb and buffer the impact and vibration caused by the weight and inertia of the cargo box, making the movement of the cargo box 8 more stable and reducing the impact on the vehicle chassis 4 and frame 1 components. The cab 3 is installed on the front side of the frame 1, and the rearview mirrors 10 are installed on both sides of the cab 3. A hydraulic rod 7 is installed on the front side of the cargo box 8. The hydraulic rod 7 is used to lift the cargo box 8 at a certain angle to realize the self-unloading function of the goods.
[0028] Reference Figure 1 , Figure 2 and Figure 3 Multiple tires 12 are equidistantly rotatably connected to the bottom of the frame 1. The tires 12 are mounted on the rims and directly contact the ground to bear the weight of the frame 1, provide traction and cushion vibrations during driving. An oil tank 13 is installed on the right side of the frame 1.
[0029] Specifically, during the lifting and lowering of the cargo box 8, the damping rod 208 can absorb and buffer the impact and vibration caused by the weight and inertia of the cargo box, making the movement of the cargo box 8 more stable and reducing the impact on the vehicle chassis 4 and frame 1 components. The cab 3 is installed on the front side of the frame 1, and the rearview mirrors 10 are installed on both sides of the cab 3. The hydraulic rod 7 is installed on the front side of the cargo box 8. The hydraulic rod 7 is used to lift the cargo box 8 at a certain angle to realize the self-unloading function of the cargo. Multiple tires 12 are equidistantly rotatably connected to the bottom of the frame 1. The tires 12 are mounted on the rims and directly contact the ground to bear the weight of the frame 1, provide traction and buffer vibration during driving.
[0030] Working Principle: One embodiment of this utility model provides a safety hook device for preventing slippage and detachment of the lifting dump truck bed. It includes a frame 1, which is the basic structure of the vehicle, supporting various components and bearing the weight of the vehicle and various forces during operation. A cargo box 8 is rotatably connected to the rear of the frame 1. The cargo box 8 is the part used for loading goods and is typically made of metal sheet. A plug 20 is installed on both the left and right sides of the bottom wall of the cargo box 8. A limit rod 9 is fixedly connected to the center of the plug 20, and limit hooks 18 are installed on both the left and right ends of the plug 20. The inner side of the limit hook 18... A limit plate 14 is installed. The top of the limit hook 18 is rotatably connected to a buckle 16. The lower middle part of the limit hook 18 is threadedly connected to a pin 21. The end of the pin 21 is rotatably connected to a lock head 19. Pressing down the buckle 16, inserting the pin 21, and tightening the lock head 19 prevents the limit hook 18 from falling off. The bottom end of the limit hook 18 is fixedly connected to a fixing ring 24. The outside of the plug 20 is fixedly connected to an installation block 15. A fixing plate 17 is installed on the outside of the installation block 15. The front side of the fixing plate 17 is rotatably connected to a locking block 23. The middle part of the locking block 23 is threadedly connected to a screw 22.
[0031] The buffer mechanism 2 includes a fixed block 201, which is equidistantly installed on the top front side of the chassis 4. A cavity 202 is installed on the top of the fixed block 201, and a spring 203 is installed inside the cavity 202. A guard plate 206 is installed on the top of the spring 203. A support arm 209 is installed in the middle of the fixed block 201, and a damping rod 208 is fixedly connected to the top of the support arm 209. A spring 207 is rotatably connected to the outer wall of the damping rod 208. A top plate 204 is fixedly connected to the top of the guard plate 206. A rubber plate 205 is fixedly connected to the top of the top plate 204. During the lifting and lowering of the cargo box 8, the damping rod 208 can absorb and buffer the impact and vibration caused by the weight and inertia of the cargo box, making the movement of the cargo box 8 more stable and reducing the impact on the vehicle chassis 4 and frame 1 components. The cab 3 is installed on the front side of the frame 1, and rearview mirrors 10 are installed on both sides of the cab 3. A hydraulic rod 7 is installed on the front side of the cargo box 8. The hydraulic rod 7 is used to lift the cargo box 8 at a certain angle to realize the self-unloading function of the goods.
[0032] The above description is merely a specific embodiment of this utility model, and the various examples do not constitute a limitation on the substantive content of this utility model.
Claims
1. A safety hook device for lifting dump truck bodies to prevent slippage and detachment, comprising a frame (1), characterized in that: The rear side of the frame (1) is rotatably connected to a cargo box (8). A plug (20) is installed on both the left and right sides of the bottom wall of the cargo box (8). A limit rod (9) is fixedly connected to the middle of the plug (20), and limit hooks (18) are installed on both the left and right ends of the plug (20). A limit plate (14) is installed on the inner side of the limit hook (18). A buckle (16) is rotatably connected to the top of the limit hook (18). A pin (21) is threadedly connected to the lower middle part of the limit hook (18). A lock (19) is rotatably connected to the end of the pin (21). The bottom end of the frame (1) is fixedly connected to a fixing ring (24), the outer side of the plug (20) is fixedly connected to a mounting block (15), the outer side of the mounting block (15) is fitted with a fixing piece (17), the front side of the fixing piece (17) is rotatably connected to a locking block (23), the middle part of the locking block (23) is threadedly connected to a screw (22), the top center of the frame (1) is fixedly connected to a chassis (4), the front top of the chassis (4) is fitted with a buffer mechanism (2), the buffer mechanism (2) can absorb and dissipate the energy generated by the moving parts due to collision and impact.
2. The safety hook device for preventing slippage and detachment of the lifting dump truck body according to claim 1, characterized in that: The buffer mechanism (2) includes a fixed block (201), which is equidistantly installed on the top front side of the chassis (4). A cavity (202) is installed on the top of the fixed block (201), and a spring (203) is installed inside the cavity (202). A guard plate (206) is installed on the top of the spring (203). A support arm (209) is installed in the middle of the fixed block (201). A damping rod (208) is fixedly connected to the top of the support arm (209). A spring (207) is rotatably connected to the outer wall of the damping rod (208). A top plate (204) is fixedly connected to the top of the guard plate (206), and a rubber plate (205) is fixedly connected to the top of the top plate (204).
3. The safety hook device for preventing slippage and detachment of the lifting dump truck body according to claim 1, characterized in that: The rear side of the cargo box (8) is rotatably connected to a door panel (11).
4. The safety hook device for preventing slippage and detachment of the lifting dump truck body according to claim 1, characterized in that: A tension spring (6) is installed on the inner side of the second fixing ring (24), and a first fixing ring (5) is installed at the end of the tension spring (6).
5. The safety hook device for preventing slippage and detachment of the lifting dump truck body according to claim 1, characterized in that: The cab (3) is mounted on the front side of the frame (1), and rearview mirrors (10) are mounted on both sides of the cab (3).
6. The safety hook device for preventing slippage and detachment of the lifting dump truck body according to claim 1, characterized in that: A hydraulic rod (7) is installed on the front side of the cargo box (8).
7. The safety hook device for preventing slippage and detachment of the lifting dump truck body according to claim 1, characterized in that: The bottom of the frame (1) is equidistantly rotatably connected to multiple tires (12).
8. The safety hook device for preventing slippage and detachment of the lifting dump truck body according to claim 1, characterized in that: An oil tank (13) is mounted on the right side of the frame (1).