Scissor type rear door mechanism for dump truck

Abstract

The utility model discloses a scissors type back door mechanism for a dumper, which relates to the technical field of scissors type back doors for the dumper and comprises a hopper, a rotating shaft is rotatably connected to one side of the inner wall of the hopper, and two third connecting blocks are fixedly connected to the outer side of the rotating shaft and two corresponding ends. Two third connecting blocks are arranged in the car hopper, the tops of the two third connecting blocks are fixedly connected with a rear door main body, driving mechanisms are arranged in the car hopper and close to the two third connecting blocks, and an attaching mechanism is arranged on one side of the inner wall of the car hopper. Through mutual cooperation of a first connecting block, a second connecting block, a third connecting block, a rotating shaft, a first gear, a second gear and a first motor during use, a worker does not need to manually open the rear door main body, the problem that a common dumper is strenuous to open due to the fact that the rear door main body is heavy is solved, the opening efficiency is effectively improved, and the safety of the dumper is improved. And the waste of time can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of scissor-type rear doors for dump trucks, in particular to a scissor-type rear door mechanism for dump trucks. Background Art

[0002] At present, the dump trucks on the domestic market generally use hinged self-locking rear doors, and the opening of the rear doors depends entirely on their own weight; there are also dump trucks that weld the rear doors to the flip pull rods and pull them open with chains or wire ropes; and a small number of them use motors to control the opening of the rear doors.

[0003] Among the three types of rear door opening mentioned above, the first one has low cost and simple design, but is only suitable for working conditions with open space and loose cargo. The second one has higher cost than the first one, and has the problems of poor fit of the rear door, and the rear door is easily impacted by large-volume square materials, causing damage due to the impact. There are also cases of large impacts during vehicle operation. For this reason, we propose a scissor-type rear door mechanism for dump trucks. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a scissor-type rear door mechanism for a dump truck, which solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a scissor-type rear door mechanism for a dump truck, comprising a truck bucket, one side of the inner wall of the truck bucket is rotatably connected to a rotating shaft, the outer side of the rotating shaft and the corresponding two ends are fixedly connected to two third connecting blocks, the tops of the two third connecting blocks are fixedly connected to a rear door body, a driving mechanism is provided inside the truck bucket and close to the two third connecting blocks, a fitting mechanism is provided on one side of the inner wall of the truck bucket, two buffer mechanisms are provided on one side of the truck bucket, the outer side of the rotating shaft and the two sides of the truck bucket are rotatably connected to connecting rods, one end of the connecting rod is fixedly connected to the rear door body, both sides of the truck bucket are fixedly connected to electric telescopic rods, and the output ends of the electric telescopic rods are slidably connected inside the connecting rods.

[0006] Preferably, the driving mechanism includes a first connecting block, the first connecting block is fixedly connected to one side of the inner wall of the truck bed, a second connecting block is fixedly connected to one side of the first connecting block and located on the outside of the rotating shaft, the rotating shaft is rotatably connected inside the second connecting block, a first gear is fixedly connected to the outside of the rotating shaft and located on the inside of the second connecting block, a first motor is fixedly connected to the inside of the first connecting block, a second gear is fixedly connected to the output end of the first motor and located on the inside of the second connecting block, and the first gear is meshed with the second gear, which is conducive to driving the rear door body to open.

[0007] Preferably, the fitting mechanism includes a first groove, the first groove is opened on one side of the truck bed, a fitting plate is slidably connected inside the first groove, a fourth groove is opened inside the truck bed and on one side of the first groove, a sliding column is fixedly connected to one side of the fitting plate and inside the fourth groove, a rack is fixedly connected to the bottom of the sliding column, a fifth groove is opened inside the truck bed and below the fourth groove, a second motor is fixedly connected to the fifth groove, a third gear is fixedly connected to the output end of the second motor, the third gear is meshed with the rack, so that no gap is generated between the rear door body and the truck bed, thereby preventing materials from falling out during the loading and driving of the dump truck.

[0008] Preferably, the buffer mechanism includes a second groove, which is opened on one side of the truck bed and located below the first groove, a damper is fixedly installed inside the second groove, one end of the damper is fixedly connected to a slider, one side of the slider is fixedly connected to a buffer block, the slider is slidably connected to the second groove, and a spring is arranged on the outside of the damper, which is beneficial to avoid direct falling and causing injury when closing and reduce noise.

[0009] Preferably, a third groove is opened on one side of the rear door body, and the third groove and the bonding plate are both concave structures.

[0010] Preferably, a control panel is fixedly connected to one side of the truck bucket, and the first motor, the second motor, and the electric telescopic rod are all electrically connected to the control panel, which is beneficial for the staff to operate and makes the operation more convenient.

[0011] The utility model provides a scissor-type rear door mechanism for a dump truck, which has the following beneficial effects:

[0012] 1. The scissor-type rear door mechanism for the dump truck adopts a driving mechanism. When in use, the first connecting block, the second connecting block, the third connecting block, the rotating shaft, the first gear, the second gear, and the first motor cooperate with each other, so that the staff does not need to manually open the rear door body, and avoids the problem of the ordinary dump truck being difficult to open due to the heavy rear door body, and effectively improves the opening efficiency, so that the waste of time can be avoided.

[0013] 2. The scissor-type rear door mechanism of the dump truck adopts a fitting mechanism and a buffer mechanism, so that the fitting mechanism can effectively avoid the formation of a gap between the rear door body and the truck bed, thereby preventing materials from falling during driving, and the retractable structure can avoid obstruction when opening and closing the rear door body. The buffer mechanism can provide a certain buffer when the rear door body is closed, effectively avoiding the loud noise caused by the closing of the rear door body of a traditional dump truck, which causes damage to the rear door body and the truck bed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a rear view of the utility model;

[0016] Figure 3 It is a cross-sectional view of the utility model;

[0017] Figure 4 It is a side view of the utility model;

[0018] Figure 5 This is a schematic diagram of the buffer structure position of the utility model;

[0019] Figure 6 This is a schematic diagram of the main structure of the rear door of the utility model;

[0020] Figure 7 For this utility model Figure 3 Enlarged view of point A in .

[0021] In the figure: 1, truck bed; 2, rear door body; 3, first slot; 6, control panel; 7, first connecting block; 8, second connecting block; 9, third connecting block; 10, rotating shaft; 11, first gear; 12, second gear; 13, fitting plate; 14, first motor; 15, spring; 16, buffer block; 17, slider; 18, damper; 19, second slot; 20, third slot; 21, third gear; 22, second motor; 23, rack; 24, slide column; 25, fourth slot; 26, fifth slot. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] See also Figures 1 to 7 The utility model provides a technical solution: a scissor-type rear door mechanism for a dump truck, comprising a bucket 1, a rotating shaft 10 is rotatably connected to one side of the inner wall of the bucket 1, two third connecting blocks 9 are fixedly connected to the outer side and corresponding ends of the rotating shaft 10, a rear door body 2 is fixedly connected to the top of the two third connecting blocks 9, a driving mechanism is provided inside the bucket 1 and close to the two third connecting blocks 9, a fitting mechanism is provided on one side of the inner wall of the bucket 1, two buffer mechanisms are provided on one side of the bucket 1, connecting rods 28 are rotatably connected to the outer side of the rotating shaft 10 and located on both sides of the bucket 1, one end of the connecting rod 28 is fixedly connected to the rear door body 2, and electric telescopic rods 27 are fixedly connected to both sides of the bucket 1, and the output end of the electric telescopic rod 27 is slidably connected inside the connecting rod 28.

[0024] The driving mechanism includes a first connecting block 7, which is fixedly connected to one side of the inner wall of the bucket 1, a second connecting block 8 is fixedly connected to one side of the first connecting block 7 and located on the outside of the rotating shaft 10, the rotating shaft 10 is rotatably connected inside the second connecting block 8, a first gear 11 is fixedly connected to the outside of the rotating shaft 10 and located inside the second connecting block 8, a first motor 14 is fixedly connected to the inside of the first connecting block 7, a second gear 12 is fixedly connected to the output end of the first motor 14 and located inside the second connecting block 8, the first gear 11 is meshed with the second gear 12, the first motor 14 is started through the control panel 6, so that the first motor 14 drives the second gear 12 to rotate, the rotating second gear 12 is meshed with the first gear 11, thereby driving the rotating shaft 10 to rotate, and driving the third connecting block 9 and the rear door body 2 to rotate upward, so that the rear door body 2 can be opened to dump materials, which is conducive to driving the rear door body 2 to open.

[0025] The laminating mechanism includes a first groove 3, which is opened on one side of the truck bed 1, and a laminating plate 13 is slidably connected inside the first groove 3. A fourth groove 25 is opened inside the truck bed 1 and on one side of the first groove 3. A sliding column 24 is fixedly connected on one side of the laminating plate 13 and inside the fourth groove 25, and a rack 23 is fixedly connected to the bottom of the sliding column 24. A fifth groove 26 is opened inside the truck bed 1 and below the fourth groove 25. A second motor 22 is fixedly connected inside the fifth groove 26, and a third gear 21 is fixedly connected to the output end of the second motor 22, and the third gear 21 is meshed with the rack 23. When the staff starts the second motor 22 through the control panel 6, the third gear 21 can be driven to mesh with the rack 23, so that the sliding column 24 slides inside the fourth groove 25 and drives the laminating plate 13 to retract, so that no gap is generated between the rear door body 2 and the truck bed 1, thereby preventing materials from falling out during the loading and driving of the dump truck.

[0026] The buffer mechanism includes a second groove 19, which is opened on one side of the truck bed 1 and is located below the first groove 3. A damper 18 is fixedly installed inside the second groove 19, one end of the damper 18 is fixedly connected to a slider 17, one side of the slider 17 is fixedly connected to a buffer block 16, the slider 17 is slidably connected to the second groove 19, and a spring 15 is arranged on the outside of the damper 18. When closing, the first motor 14 is started through the control panel 6 to drive the rear door body 2 to merge, and the slider 17 and the buffer block 16 are squeezed when closing, and the damper 18 and the spring 15 cooperate to perform buffering, which is beneficial to avoid direct falling and causing injury when closing and reducing noise.

[0027] A third groove 20 is provided on one side of the rear door body 2. The third groove 20 and the fitting plate 13 are both concave structures. A control panel 6 is fixedly connected to one side of the truck bed 1. The first motor 14, the second motor 22, and the electric telescopic rod 27 are all electrically connected to the control panel 6, which is beneficial for the staff to operate and makes the operation more convenient.

[0028] To sum up, the scissor-type rear door mechanism for the dump truck is used. When it is opened, the staff starts the second motor 22 through the control panel 6 to drive the third gear 21 to engage with the rack 23, so that the slide column 24 slides inside the fourth groove 25 and drives the bonding plate 13 to retract, and starts the first motor 14 through the control panel 6, so that the first motor 14 drives the second gear 12 to rotate, and the rotating second gear 12 engages with the first gear 11, thereby driving the rotating shaft 10 to rotate, and driving the third connecting block 9 and the rear door body 2 to rotate upward, and starts the electric telescopic rod 27 through the control panel 6 to drive the connecting rod 28 to rotate, thereby driving 2, and the rear door body 2 can be opened to dump materials. When closing, the first motor 14 is started through the control panel 6 to drive the rear door body 2 to merge, and when closing, the slider 17 and the buffer block 16 are squeezed, and buffered by the cooperation of the damper 18 and the spring 15, and the second motor 22 is started again through the control panel 6 to drive the bonding plate 13 to slide and insert into the third groove 20 on one side of the rear door body 2.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A scissor-type rear door mechanism for a dump truck, comprising a truck bucket (1), characterized in that: A rotating shaft (10) is rotatably connected to one side of the inner wall of the truck bucket (1), two third connecting blocks (9) are fixedly connected to the outer side and corresponding ends of the rotating shaft (10), and the tops of the two third connecting blocks (9) are fixedly connected to the rear door body (2). A driving mechanism is provided inside the truck bucket (1) and close to the two third connecting blocks (9). A fitting mechanism is provided on one side of the inner wall of the truck bucket (1), and two buffer mechanisms are provided on one side of the truck bucket (1). Connecting rods (28) are rotatably connected to the outer side of the rotating shaft (10) and located on both sides of the truck bucket (1), one end of the connecting rod (28) is fixedly connected to the rear door body (2), and electric telescopic rods (27) are fixedly connected to both sides of the truck bucket (1), and the output end of the electric telescopic rod (27) is slidably connected inside the connecting rod (28).

2. The scissor-type rear door mechanism for a dump truck according to claim 1, characterized in that: The driving mechanism comprises a first connecting block (7), the first connecting block (7) being fixedly connected to one side of the inner wall of the bucket (1), a second connecting block (8) being fixedly connected to one side of the first connecting block (7) and located outside a rotating shaft (10), the rotating shaft (10) being rotatably connected inside the second connecting block (8), a first gear (11) being fixedly connected to the outside of the rotating shaft (10) and located inside the second connecting block (8), a first motor (14) being fixedly connected inside the first connecting block (7), a second gear (12) being fixedly connected to the output end of the first motor (14) and located inside the second connecting block (8), and the first gear (11) being meshed with the second gear (12).

3. The scissor-type rear door mechanism for a dump truck according to claim 1, characterized in that: The laminating mechanism comprises a first groove (3), the first groove (3) being opened at one side of the truck bucket (1), a laminating plate (13) being slidably connected inside the first groove (3), a fourth groove (25) being opened inside the truck bucket (1) and located at one side of the first groove (3), a sliding column (24) being fixedly connected at one side of the laminating plate (13) and located inside the fourth groove (25), a rack (23) being fixedly connected at the bottom of the sliding column (24), a fifth groove (26) being opened inside the truck bucket (1) and located below the fourth groove (25), a second motor (22) being fixedly connected inside the fifth groove (26), an output end of the second motor (22) being fixedly connected to a third gear (21), the third gear (21) being meshed with the rack (23).

4. The scissor-type rear door mechanism for a dump truck according to claim 1, characterized in that: The buffer mechanism comprises a second groove (19), the second groove (19) is opened on one side of the truck bucket (1) and is located below the first groove (3), a damper (18) is fixedly installed inside the second groove (19), one end of the damper (18) is fixedly connected to a slider (17), one side of the slider (17) is fixedly connected to a buffer block (16), the slider (17) is slidably connected to the second groove (19), and a spring (15) is arranged on the outside of the damper (18).

5. The scissor-type rear door mechanism for a dump truck according to claim 1, characterized in that: A third groove (20) is provided on one side of the rear door body (2), and the third groove (20) and the bonding plate (13) are both concave structures.

6. The scissor-type rear door mechanism for a dump truck according to claim 2, characterized in that: A control panel (6) is fixedly connected to one side of the vehicle bucket (1); the first motor (14), the second motor (22), and the electric telescopic rod (27) are all electrically connected to the control panel (6).

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