Dumper cabin door limiting device

Abstract

The utility model discloses a dump truck cabin door limiting device, which relates to the technical field of dump trucks and comprises a truck body, supports are mounted on two corresponding sides of the truck body, a truck hopper is rotatably connected between the two supports and located at the top of the truck body, and supporting pieces are mounted on two corresponding sides of the top of the truck hopper. A cabin door body is rotationally connected between the two supporting pieces, and two metal blocks are installed on one side of the cabin door body. Compared with the prior art, the dumper cabin door limiting device has the advantages that the cabin door is limited and fixed conveniently through the metal block and the electromagnet which are installed on the cabin door and in the dumper hopper respectively, meanwhile, abrasion and clamping stagnation are not prone to occurring, the cabin door is composed of the door frame and the door plate, the door plate can be opened when the cabin door breaks down and cannot be opened through the door-in-door arrangement, and the cabin door can be opened conveniently. And the metal block is connected with the door plate, and the door plate is sealed more stably through a double-fixing structure in cooperation with insertion connection of the arc-shaped insertion bolt and the positioning piece.

Description

Technical Field

[0001] This utility model relates to the field of dump truck technology, specifically a dump truck hatch limiting device. Background Technology

[0002] The hatches of dump trucks are designed to protect goods from external environmental influences during transportation, preventing them from falling off or being stolen. At the same time, the hatches also protect the vehicle's internal structure from damage during transport.

[0003] Application No. 202320952579.6 discloses a rear door structure for a dump truck. The structure comprises a middle plate and a first bent end on the main panel. The middle plate, the first bent end, the upper crossbeam, and the lower crossbeam together form a bending groove. The opening of the bending groove faces the dump truck bed. When loading goods, the bending groove cooperates with the internal space of the dump truck bed to further increase the volume inside the bed. Furthermore, the rear door structure provided by this invention is simple. The main panel, the upper crossbeam, and the lower crossbeam work together to ensure the overall strength of the rear door structure and effectively simplify the structure. This avoids the arrangement of multiple crossbeams and longitudinal beams intersecting, reducing production and maintenance costs.

[0004] The mainboard in the aforementioned application still uses a transmission-based switch structure. After prolonged use, the lock may experience wear or jamming, leading to difficulty in opening and closing the back door and affecting work efficiency. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a dump truck hatch limiting device, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a dump truck hatch limiting device, comprising a vehicle body, brackets installed on corresponding sides of the vehicle body, a truck bed rotatably connected between the two brackets and located at the top of the vehicle body, support members installed on corresponding sides of the top of the truck bed, a hatch body rotatably connected between the two support members, two metal blocks installed on one side of the hatch body, two grooves formed at one end of the truck bed, electromagnets installed inside the two grooves, one end of each of the two metal blocks inserted into the two grooves and in contact with the two electromagnets, the inside of the truck bed and located at the top of the vehicle body... A power source is installed between the two grooves, and wires are connected between the power source and the two electromagnets. The hatch body includes a frame, and a first door panel and a second door panel are rotatably connected inside the frame. A positioning component is installed on the side of the first door panel away from the metal block, and a rotating shaft is rotatably connected to the side of the second door panel near the positioning component via a bearing. An arc-shaped insertion hole is opened inside the positioning component, and an arc-shaped plug is connected to one side of the rotating shaft. One end of the arc-shaped plug is inserted into the arc-shaped insertion hole, and the arc-shaped plug fits into the arc-shaped insertion hole. An anti-theft hole is opened inside the arc-shaped plug. The first door panel and the second door panel are respectively connected to two metal blocks.

[0007] Preferably, the surfaces of the gantry, the first door panel, and the second door panel are all equipped with shock-absorbing pads.

[0008] Preferably, the material of the shock-absorbing pad is rubber.

[0009] Preferably, a support frame is installed at the bottom of the truck bed and on both sides corresponding to the mast. A door claw is rotatably connected to one side of the support frame. The door claw abuts against the mast. An iron chain is connected to the bottom of the door claw, and one end of the iron chain is connected to the vehicle body.

[0010] Preferably, the structure of the gantry is U-shaped.

[0011] Preferably, the edges of the gantry and the first door panel are both arc-shaped, the first door panel and the second door panel are fitted together, and the first door panel and the second door panel are respectively fitted to the inner side of the gantry.

[0012] This utility model provides a limit device for the hatch of a dump truck, which has the following advantages:

[0013] 1. The dump truck door limiting device uses metal blocks and electromagnets installed on the door and inside the truck bed to limit and fix the door while preventing wear and jamming. The door consists of a door frame and a door panel. The door-within-a-door design allows the door panel to be opened when the door malfunctions and cannot be opened, ensuring the discharge of materials. The metal blocks are connected to the door panel, and the arc-shaped bolts and positioning parts are inserted to form a double fixing structure, making the door panel more stable when closed.

[0014] 2. The door limiting device of this dump truck uses shock-absorbing pads installed on the mast and door panel to separate the door from the impact object, protect the door and the impact object, and use the elastic deformation of the material to absorb and disperse vibration energy, so that the door is not easily damaged by impact, which helps to reduce losses and extend the service life of the door. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a side sectional view of the present invention;

[0017] Figure 3 This is a side view of the present invention;

[0018] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle;

[0019] Figure 5 This is a schematic diagram illustrating the operation of this utility model.

[0020] In the diagram: 1. Vehicle body; 2. Cargo bed; 3. Supporting component; 4. Door body; 41. Mast; 42. First door panel; 43. Second door panel; 5. Metal block; 6. Groove; 7. Electromagnet; 8. Power supply; 9. Positioning component; 10. Arc-shaped insertion hole; 11. Rotating shaft; 12. Arc-shaped bolt; 13. Anti-theft hole; 14. Support frame; 15. Door claw; 16. Chain; 17. Shock-absorbing pad; 18. Bracket. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see Figures 1 to 5This utility model provides a technical solution: a self-unloading truck hatch limiting device, including a vehicle body 1, with brackets 18 installed on corresponding sides of the vehicle body 1, and a truck bed 2 rotatably connected between the two brackets 18 and located at the top of the vehicle body 1. Support members 3 are installed on corresponding sides of the top of the truck bed 2, and a hatch body 4 is rotatably connected between the two support members 3. Two metal blocks 5 are installed on one side of the hatch body 4. Two grooves 6 are formed at one end of the truck bed 2, and electromagnets 7 are installed inside each of the two grooves 6. One end of each of the two metal blocks 5 is inserted into the two grooves 6 and fits against the two electromagnets 7. A power supply 8 is installed inside the truck bed 2 and between the two grooves 6. Wires are connected between the power supply 8 and the two electromagnets 7. Under the action of the power supply 8, the control... When the electromagnet 7 is energized or de-energized, the generated electromagnetic energy magnetically attracts the metal block 5, facilitating the fixing and opening of the hatch body 4. Compared to transmission locks, it is less prone to wear and jamming. The hatch body 4 includes a frame 41, with a first door plate 42 and a second door plate 43 rotatably connected inside the frame 41. A positioning element 9 is installed on the side of the first door plate 42 away from the metal block 5. A rotating shaft 11 is rotatably connected to the side of the second door plate 43 near the positioning element 9 via a bearing. An arc-shaped insertion hole 10 is provided inside the positioning element 9. An arc-shaped plug 12 is connected to one side of the rotating shaft 11. One end of the arc-shaped plug 12 is inserted into the arc-shaped insertion hole 10, and the arc-shaped plug 12 fits against the arc-shaped insertion hole 10. With the rotation of the rotating shaft 11, the arc-shaped plug 12 passes through or is pulled out of the insertion hole 10, facilitating the fixing and opening of the hatch body 4. The second door panel 43 and the first door panel 42 are fixed or opened, so that when the hatch body 4 malfunctions and cannot be opened normally, the first door panel 42 and the second door panel 43 can be opened to ensure the passage of materials. The arc-shaped bolt 12 has an anti-theft hole 13 inside. When the anti-theft hole 13 is used, it can be used with a padlock or other iron wire or iron rod to prevent the arc-shaped bolt 12 from being pulled out of the bolt hole 10, which helps to improve the anti-theft performance of the positioning part 9 and the arc-shaped bolt 12. The first door panel 42 and the second door panel 43 are respectively connected to two metal blocks 5, which provide secondary fixation for the first door panel 42 and the second door panel 43, making them more stable. The structure of the door frame 41 is U-shaped and open, which helps to prevent the door from being opened when the first door panel 42 and the second door panel 43 are opened. The frame 41 obstructs the passage of materials. The edges of the frame 41 and the first door panel 42 are both arc-shaped. The first door panel 42 and the second door panel 43 are fitted together, and the first door panel 42 and the second door panel 43 are respectively fitted to the inner side of the frame 41, which helps to ensure the sealing between the frame 41, the first door panel 42, and the second door panel 43. The surfaces of the frame 41, the first door panel 42, and the second door panel 43 are all equipped with shock-absorbing pads 17, which facilitates the separation of the hatch body 4 and the impact object, and protects the hatch body 4 and the impact object. The shock-absorbing pads 17 are made of rubber, which has good elasticity and wear resistance, and can effectively absorb vibration and reduce noise. Support frames 14 are installed at the bottom of the truck bed 2 on both sides corresponding to the frame 41. A door claw 15 is rotatably connected to one side of the support frame 14.Door claw 15 abuts against mast 41. A chain 16 is connected to the bottom of door claw 15, with one end of the chain 16 connected to the vehicle body 1. The chain 16 adjusts in tension as the cargo bed 2 and support frame 14 rotate, pulling door claw 15 to abut against the hatch body 4 for secondary fixation. Alternatively, the chain 16 can loosen door claw 15, causing it to rotate automatically and releasing the fixation on the hatch body 4.

[0023] In summary, when this dump truck door limiting device is in use, the power supply 8 energizes the electromagnets 7 in the two grooves 6 inside the truck bed 2, which magnetically attract the two metal blocks 5 on the door body 4, thus fixing the door body 4 in place. Similarly, when it is necessary to open the door body 4, the power supply 8 cuts off the current, and the electromagnets 7 can release their magnetic attraction to the metal blocks 5. Through the hydraulic lifting system on the vehicle body 1, the truck bed 2 is pushed to flip. Since the door claws 15 rotatably connected to the bottom support frame 14 of the truck bed 2 abut against the door body 4, and the door claws 15 are connected to the vehicle body 1 by an iron chain 16, when the truck bed 2 flips around the support frame 18 as the center point, it drives the support frame 14 to rotate. The iron chain 16 is then released, pulling the door claws 15 to flip, so that the door claws 15 no longer abut against the door body 4. The door body 4 tilts under the action of gravity. Open the cargo bed 2 and discharge the material inside. Since the hatch body 4 is composed of a mast 41, a first door panel 42, and a second door panel 43, and both the first door panel 42 and the second door panel 43 are rotatably connected to the mast 41, when the hatch body 4 malfunctions and cannot be opened normally, rotate the pivot 11 on the second door panel 43 to pull the arc-shaped plug 12 on one side out of the arc-shaped insertion hole 10 in the positioning part 9, thereby releasing the fixation between the first door panel 42 and the second door panel 43, and then the first door panel 42 and the second door panel 43 can be opened to allow the material to pass through. After that, rotate the second door panel 43 and rotate the pivot 11 again to make the arc-shaped plug 12 pass through the arc-shaped insertion hole 10 in the positioning part 9 to perform self-locking, fix the first door panel 42 and the second door panel 43, and close the hatch body 4.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A self-unloading vehicle cabin door limiting device, comprising a vehicle body (1), characterized in that: The car body (1) corresponding to both sides are provided with a support (18), two support (18) between and located at the top of the car body (1) is rotatably connected with the car (2), the car (2) top corresponding to both sides are provided with a support (3), two support (3) between rotatably connected with the hatch body (4), the hatch body (4) on one side is provided with two metal block (5), the car (2) one end is provided with two recess (6), two recess (6) are provided with an electromagnet (7) in, two metal block (5) one end respectively inserted into two recess (6) and two electromagnet (7) fit, the car (2) is provided with a power supply (8) in and between two recess (6), the power supply (8) and two electromagnet (7) are connected with wire, the hatch body (4) includes door frame (41), the door frame (41) is rotatably connected with the first door plate (42) and the second door plate (43), the first door plate (42) away from the metal block (5) on one side is provided with a positioning element (9), the second door plate (43) is rotatably connected with the pivot (11) on the side close to the positioning element (9), the positioning element (9) is provided with an arc shaped insertion hole (10) in, the pivot (11) on one side is connected with an arc shaped insertion bolt (12), the arc shaped insertion bolt (12) one end is inserted into the arc shaped insertion hole (10), the arc shaped insertion bolt (12) and arc shaped insertion hole (10) fit, the arc shaped insertion bolt (12) is provided with an anti-theft hole (13) in, the first door plate (42) and the second door plate (43) are connected with two metal block (5) respectively.

2. A self-unloading vehicle hatch door check apparatus as defined in claim 1 wherein: The surface of the door frame (41), the first door plate (42) and the second door plate (43) is provided with a damping pad (17).

3. A self-unloading vehicle hatch door check apparatus as defined in claim 2 wherein: The material of the damping pad (17) is rubber.

4. A self-unloading vehicle hatch door check apparatus as defined in claim 1 wherein: The bottom of the car (2) and the corresponding two sides of the door frame (41) are provided with a support frame (14), one side of the support frame (14) is rotatably connected with a door claw (15), the door claw (15) abuts against the door frame (41), the bottom of the door claw (15) is connected with an iron chain (16), one end of the iron chain (16) is connected with the car body (1).

5. A dump body hatch limiting device as defined in claim 1 wherein: The structure of the door frame (41) is concave.

6. A dump body hatch limiting device as defined in claim 1 wherein: The edges of the door frame (41) and the first door plate (42) are arc-shaped, the first door plate (42) and the second door plate (43) are fit, and the first door plate (42) and the second door plate (43) are fit with the inner side of the door frame (41).

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