Constructional engineering material transportation device

Abstract

The utility model discloses a constructional engineering material transportation device which comprises a transportation hopper, a steering roller assembly is arranged on the front side of the surface of the bottom of the transportation hopper, and a driven wheel assembly is arranged on the rear side of the surface of the bottom of the transportation hopper. The transport hopper comprises a bottom plate, a hopper hinged to the front side of the upper surface of the bottom plate and two electric cylinder telescopic rods hinged to the rear side of the surface of the top of the bottom plate, and the tail ends of telescopic shafts of the electric cylinder telescopic rods are hinged to the surface of the rear side of the hopper. According to the steering roller assembly in the technical scheme, an arc-shaped sliding rail driving mechanical linkage structure is adopted, so that the front wheel has the large-angle deflection capacity, and the maneuverability of the device in a narrow space and the stability of the device in a ramp environment are remarkably improved in cooperation with the three-point supporting design of the driven wheel assembly; compared with a traditional hydraulic device, the discharging mode that the telescopic rod of the electric cylinder directly drives the hopper to turn over has the advantages of being fast in response and low in maintenance cost.

Description

Technical Field

[0001] This utility model relates to the technical field of construction site transport vehicles, specifically to a construction material transport device. Background Technology

[0002] Construction material transport equipment refers to equipment used on construction sites to transport building materials or miscellaneous materials such as mortar, bricks, sand and gravel, such as handcarts, tricycles, and flatbed trucks.

[0003] However, existing handcarts generally suffer from design flaws in their steering mechanisms, often employing fixed-wheelbase dual-wheel or simple swivel wheel structures. This necessitates frequent manual lifting and steering adjustments in narrow passages, right-angle turns, or complex terrain, severely reducing transportation efficiency. Their unloading methods are also outdated, relying on manual operation of mechanical latches or simple hydraulic rods, which is not only labor-intensive but also makes precise control of the unloading angle difficult, easily leading to material spillage. This patent addresses these pain points by proposing a solution for a construction material transportation device. Utility Model Content

[0004] The purpose of this utility model is to provide a technical solution for a construction material transportation device to address the shortcomings mentioned in the background art. To overcome the drawbacks and defects described in the background art, this technical solution includes the following:

[0005] The device includes a transport container, a steering roller assembly on the front side of the bottom surface of the transport container, and a driven wheel assembly on the rear side of the bottom surface of the transport container. The transport container includes a bottom plate, a hopper hinged to the front side of the top surface of the bottom plate, and two electric cylinder telescopic rods hinged to the rear side of the top surface of the bottom plate, with the telescopic shaft ends of the electric cylinder telescopic rods hinged to the rear surface of the hopper.

[0006] The driven wheel assembly includes an arched frame fixed to the bottom of the base plate, and rear wheels rotatably connected to both sides of the arched frame via a pivot.

[0007] The steering roller assembly includes a U-shaped frame fixed to the bottom of the base plate, an upper connecting strip rotatably connected to the bottom of the U-shaped frame, and a lower connecting strip fixed to the rear end of the upper connecting strip. A crossbeam is fixed to the bottom of the U-shaped frame, and two traction arms are rotatably connected to the bottom sides of the crossbeam. A movable beam is rotatably connected to the front end of the traction arms. L-shaped rotating columns pass through both sides of the inside of the crossbeam, and the bottom of the outer ring of the L-shaped rotating columns is fixedly connected to the rear section of the traction arms.

[0008] The middle section of the lower connecting strip is rotatably connected to the bottom middle section of the crossbeam, and the front end of the lower connecting strip is rotatably connected to the bottom middle section of the movable beam; an arc-shaped electric slide rail is fixed to the bottom middle section of the base plate, and an electric slider is movably arranged inside the arc-shaped electric slide rail, with the bottom end of the electric slider rotatably connected to the rear ends of the upper and lower connecting strips.

[0009] As a preferred embodiment of this utility model: the ends of the L-shaped rotating columns that are far apart from each other are rotatably connected to the front wheel via a coupling.

[0010] As a preferred embodiment of this utility model: a push handle is welded to the rear surface of the base plate, and two hinges are connected between the front end face of the base plate and the front end face of the hopper.

[0011] As a preferred embodiment of this utility model: a battery for powering the arc-shaped electric slide rail is fixed on the bottom surface of the base plate.

[0012] As a preferred embodiment of this utility model: the handle position of the hinge is provided with a controller for controlling the arc-shaped electric slide rail and the electric slider.

[0013] As a preferred embodiment of this utility model: the L-shaped rotating column is L-shaped in general, and the front wheel is arranged in a mirror-symmetrical manner with the central axis of the U-shaped frame as the base point.

[0014] As a preferred embodiment of this utility model: the arc-shaped electric slide rail is arc-shaped, and the interior of the arc-shaped electric slide rail is provided with an arc-shaped groove for the electric slider to slide along the arc.

[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0016] The steering roller assembly of this technical solution adopts an arc-shaped slide rail driven mechanical linkage structure, which enables the front wheel to have a large-angle deflection capability. Combined with the three-point support design of the driven wheel assembly, it significantly improves the mobility of the device in narrow spaces and the stability of the device in slope environments. The unloading method of directly driving the hopper to tilt by the electric cylinder telescopic rod has the advantages of fast response and low maintenance cost compared with the traditional hydraulic device. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of the transportation system;

[0019] Figure 2 This is a schematic diagram of the transport vehicle's cargo bed mechanism;

[0020] Figure 3 This is a schematic diagram of the roller mechanism;

[0021] Figure 4This is a schematic diagram of the steering roller assembly.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Transport vehicle bed; 11. Base plate; 12. Electric cylinder telescopic rod; 13. Push handle; 14. Hopper; 15. Hinge; 2. Driven wheel assembly; 21. Arch frame; 22. Rear wheel; 3. Steering roller assembly; 31. U-shaped frame; 32. L-shaped rotating column; 33. Front wheel; 34. Support rod; 35. Crossbeam; 36. Movable beam; 37. Pull arm; 38. Lower connecting bar; 39. Electric slider; 310. Arc-shaped electric slide rail; 311. Upper connecting bar. Detailed Implementation

[0024] To provide a clearer explanation and description of the technical solution and implementation of this utility model, several preferred specific embodiments for implementing the technical solution of this utility model are introduced below.

[0025] The following description is exemplary in nature and is not intended to limit the scope, application, or use of this disclosure. It should be understood that in all these figures, the same or similar reference numerals indicate the same or similar parts and features. The figures are merely schematic representations of the concept and principles of embodiments of this disclosure and do not necessarily show the specific dimensions and scale of each embodiment. Specific details or structures of embodiments of this disclosure may be exaggerated in particular portions of certain figures. The disclosures of various publications, patents, and published patent specifications cited herein are incorporated herein by reference in their entirety. The technical solutions of this utility model will be clearly and completely described below in conjunction with embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model.

[0026] In embodiment 1, the transport hopper 1 is composed of a bottom plate 11 and a hopper 14 connected by a hinge 15. The bottom end of the electric cylinder telescopic rod 12 is hinged to the rear end of the bottom plate 11, and the top end is hinged to the rear side of the hopper 14, so as to realize the tipping unloading of the hopper 14. An arched frame 21 is set at the lower rear of the bottom plate 11, and the rear wheels 22 are symmetrically installed on both sides of the arched frame 21 through a rotating shaft to form a driven wheel assembly 2. The U-shaped frame 31 of the steering roller assembly 3 is fixed to the front bottom surface of the bottom plate 11, and a rotatable upper connecting bar 311 is installed at its bottom. The lower connecting bar 38 is connected to the upper connecting bar 311. The rear end is fixed, the crossbeam 35 is fixed to the bottom of the U-shaped frame 31, and two L-shaped rotating columns 32 pass through the crossbeam 35 laterally. The upper end of the traction arm 37 is fixed to the bottom of the L-shaped rotating column 32, and the front end is hinged to the front end of the lower connecting strip 38 through the movable beam 36. The arc-shaped electric slide rail 310 is fixed to the middle of the bottom surface of the base plate 11. The electric slider 39 moves along the arc-shaped slide groove and is hinged to the rear end of the upper connecting strip 311 and the lower connecting strip 38. The displacement of the electric slider 39 drives the connecting strip group to move together, so that the traction arm 37 drives the L-shaped rotating column 32 to rotate and achieve steering.

[0027] In Example 2, based on Example 1, the outer end of the L-shaped rotating column 32 is connected to the front wheel 33 via a coupling. The two sets of front wheels 33 are symmetrically arranged with the central axis of the U-shaped frame 31 as a reference to form a mirror structure. When the electric slider 39 slides along the arc-shaped electric slide rail 310, the traction arm 37 drives the L-shaped rotating column 32 to rotate synchronously through the linkage of the upper connecting bar 311 and the lower connecting bar 38, causing the front wheels 33 to deflect in the same direction, forming a four-wheel steering mechanism, which works with the rear wheel 22 to achieve flexible steering. At the same time, the push handle 13 is welded to the rear surface of the base plate 11 for easy manual pushing, and the hinge 15 is set at the connection between the hopper 14 and the base plate 11 to maintain opening and closing stability.

[0028] In embodiment three, a controller is further installed at the push handle 13. This controller connects the arc-shaped electric slide rail 310 and the electric slider 39 via a cable, and an operation button is integrated at the handle of the hinge 15. A lithium battery pack is installed at the bottom of the base plate 11 to power the electric cylinder telescopic rod 12, the arc-shaped electric slide rail 310, and the electric slider 39. During unloading, the electric cylinder telescopic rod 12 is activated by the controller at the hinge 15 to lift the hopper 14. After the material is poured out, it retracts and resets. During the turning process, the operator adjusts the position of the electric slider 39 in the arc-shaped electric slide rail 310 through the controller at the push handle 13 to precisely control the steering angle of the front wheel 33. The arc-shaped slide rail limits the maximum steering angle to 60 degrees, thereby ensuring steering stability.

[0029] Example 4: The structure of the steering roller assembly 3 is optimized by setting the hinge point between the movable beam 36 and the lower connecting bar 38 as a ball joint to enhance the multi-directional freedom of movement; the arched frame 21 and the U-shaped frame 31 are welded from hollow steel pipes to reduce weight, and the rear wheel 22 and the front wheel 33 are equipped with pneumatic tires to improve shock absorption performance; the electric slider 39 has a built-in displacement sensor to feed back the real-time position to the controller, forming a closed-loop control system; the inner wall of the hopper 14 is lined with wear-resistant steel plates, the electric cylinder telescopic rod 12 adopts a double-stage telescopic structure to increase the lifting stroke, and the battery pack is fixed in the bottom groove of the base plate 11 with a waterproof shell.

[0030] The working process of a construction material transportation device:

[0031] After the operator loads the material into the hopper 14, they push the device to move by holding the push handle 13. The rear wheel 22 rotates freely in the direction of travel. When turning, the electric slider 39 is adjusted in the arc-shaped electric slide rail 310 by the controller at the hinge 15 or the push handle 13. The electric slider 39 drives the upper connecting bar 311 and the lower connecting bar 38 to rotate, forcing the traction arm 37 to rotate around the L-shaped rotating column 32, driving the front wheel 33 to deflect synchronously to achieve turning. When unloading, the operator activates the electric cylinder telescopic rod 12 to lift the rear end of the hopper 14 so that it flips around the hinge 15, and the material is poured out from the front end of the hopper 14. After completion, the electric cylinder telescopic rod 12 is retracted to reset the hopper 14. During the turning process, the electric slider 39 has a built-in displacement sensor that provides real-time feedback on the position to the controller to form a closed-loop control. The ball joint hinge point enhances the turning coordination between the movable beam 36 and the lower connecting bar 38. The pneumatic tires absorb ground vibrations to ensure stable transportation. The battery continuously supplies power to the electric cylinder telescopic rod 12, the electric slide rail 310, and the controller until the material transportation task is completed and the power is turned off.

[0032] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A construction material transport device comprising a transport hopper (1), characterised in that: The bottom surface front side of the transport car hopper (1) is provided with a steering roller assembly (3), and the bottom surface rear side of the transport car hopper (1) is provided with a driven wheel assembly (2); The transport car hopper (1) comprises a bottom plate (11), a hopper (14) hinged to the top surface front side of the bottom plate (11), and two electric cylinder telescopic rods (12) hinged to the top surface rear side of the bottom plate (11), and the telescopic shaft ends of the electric cylinder telescopic rods (12) are hinged to the rear surface of the hopper (14); The driven wheel assembly (2) comprises an arch-shaped frame (21) fixed to the bottom of the bottom plate (11), and rear wheels (22) rotatably connected to the two sides of the arch-shaped frame (21) through a rotating shaft; The steering roller assembly (3) comprises a U-shaped frame (31) fixed to the bottom of the bottom plate (11), an upper connecting strip (311) rotatably connected to the bottom of the U-shaped frame (31), and a lower connecting strip (38) fixed to the rear end of the upper connecting strip (311), the bottom of the U-shaped frame (31) is fixed with a crossbeam (35), two pull arms (37) are rotatably connected to the bottom of the crossbeam (35), the front end of the pull arm (37) is rotatably connected with a movable beam (36), and the inside of the crossbeam (35) is penetrated by an L-shaped rotating column (32), the outer circle bottom of the L-shaped rotating column (32) is fixedly connected with the rear section of the pull arm (37); The middle section of the lower connecting strip (38) is rotatably connected with the middle section of the bottom of the crossbeam (35), and the front end of the lower connecting strip (38) is rotatably connected with the middle section of the bottom of the movable beam (36); the middle section of the bottom of the bottom plate (11) is fixed with an arc-shaped electric sliding rail (310), the inside of the arc-shaped electric sliding rail (310) is movably provided with an electric sliding block (39), and the bottom end of the electric sliding block (39) is rotatably connected with the rear end of the upper connecting strip (311) and the lower connecting strip (38).

2. A construction material transport apparatus according to claim 1, characterised in that: The ends of the L-shaped rotating columns (32) away from each other are rotatably connected with front wheels (33) through shaft couplings.

3. A construction material transport apparatus as claimed in claim 1, wherein: The rear surface of the bottom plate (11) is welded with a push handle (13), and the front end surface of the bottom plate (11) and the front end surface of the hopper (14) are connected with two hinges (15).

4. A construction material transport apparatus as claimed in claim 1, wherein: The bottom surface of the bottom plate (11) is fixed with a battery for supplying power to the arc-shaped electric sliding rail (310).

5. A construction material transport apparatus as claimed in claim 3, wherein: The handle position of the hinge (15) is provided with a controller for controlling the arc-shaped electric sliding rail (310) and the electric sliding block (39).

6. A construction material transport apparatus as claimed in claim 2, wherein: The L-shaped rotating columns (32) are integrally L-shaped, and the front wheels (33) are arranged in left-right mirror symmetry with the middle axis of the U-shaped frame (31) as the base point.

7. A construction material transport apparatus as claimed in claim 1, wherein: The arc-shaped electric sliding rail (310) is in an arc shape, and the inside of the arc-shaped electric sliding rail (310) is provided with an arc-shaped sliding groove for sliding the electric sliding block (39) along the arc.

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