Construction material transport vehicle

Abstract

The utility model discloses a construction material conveying vehicle belongs to the building construction equipment technical field, and it aims at solving the problem of dust pollution and fixed handrail height when conveying powder of the existing material conveying vehicle. The material conveying vehicle includes a hopper, a bottom plate and a dustproof mechanism; the dustproof mechanism includes a motor, a driven wheel connected through a belt transmission, a rotating shaft coaxially fixed with the driven wheel and a bevel gear one; it further includes a bevel gear two engaged with the bevel gear one, a lead screw coaxially fixed with the bevel gear two, a plurality of sliding blocks threadedly connected to the lead screw, a connecting rod rotatably connected between the sliding blocks and a sliding rod fixed on the sliding blocks and connected with a dustproof film. Preferably, it further includes an adjusting mechanism for adjusting the height of the handrail. The utility model automatically covers the hopper through the dustproof mechanism, effectively prevents dust flying and material spilling, and is environment-friendly and practical; at the same time, the height-adjustable handrail improves the operation comfort and universality.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a material transport vehicle for construction. Background Technology

[0002] On construction sites, hand-pushed material handling carts are widely used as a basic material handling tool for short-distance transportation of bulk materials such as sand, cement, and concrete mixes. Due to their simple structure, flexible operation, and low cost, they play an indispensable role in various engineering projects.

[0003] Currently, most construction material transport vehicles on the market use a simple open-top design. While this design facilitates rapid loading and unloading of materials and improves loading and unloading efficiency, it has also revealed an increasingly prominent problem in actual use.

[0004] When material transport vehicles are used to transport dry, fine powdery materials such as cement and dry mortar, their open-top design becomes a significant drawback. During transport, the vehicle's movement and the effects of natural wind can easily cause large amounts of dust inside the truck bed to be stirred up and scattered in all directions.

[0005] The release of this dust not only directly causes material loss and increases project costs, but more seriously, it also deteriorates the working environment at the construction site. The resulting dust pollution poses a potential threat to the respiratory health of frontline construction workers and makes it difficult to meet the environmental protection requirements of modern green and civilized construction.

[0006] Therefore, this utility model proposes a construction material transport vehicle to overcome the shortcomings of the prior art. Utility Model Content

[0007] In view of the problems existing in the construction material transport vehicle, when transporting powdery materials, the open truck bed easily leads to dust flying and material spillage, which not only pollutes the environment and endangers health, but also causes material waste. The present invention aims to provide a construction material transport vehicle with an improved structure that can effectively solve the above problems.

[0008] This utility model provides a construction material transport vehicle, including: a truck bed, a floor plate disposed below the truck bed, and a dustproof mechanism disposed inside the truck bed.

[0009] The dustproof mechanism includes a motor, a driven wheel connected to the motor via a belt, a rotating shaft fixedly connected to the driven wheel on the same axis, and a bevel gear one fixedly connected to the end of the rotating shaft. The dustproof mechanism also includes a shrinking assembly, which includes a bevel gear two meshing with the bevel gear one, a lead screw fixedly connected to the bevel gear two on the same axis, a plurality of sliding blocks threaded to the lead screw, a connecting rod rotatably connected between the sliding blocks, and a sliding rod fixedly connected to the sliding blocks. A dustproof membrane is fixedly connected to the sliding rod.

[0010] Furthermore, the motor drives the driven wheel to rotate via a drive wheel and belt fixedly connected to its output end, thereby driving the sliding block to move via a rotating shaft, bevel gear one, bevel gear two and lead screw, thus causing the dustproof film to expand or contract.

[0011] Preferably, the retraction assembly further includes a fixed block and a rotating rod, the lead screw is rotatably mounted on the fixed block, one end of the rotating rod is rotatably connected to one of the connecting rods, and the other end is rotatably connected to the fixed block; a support rod is also fixedly connected inside the truck bed, and the sliding block is slidably supported on the support rod.

[0012] Preferably, the construction material transport vehicle further includes an adjustment mechanism and a handrail, the adjustment mechanism being disposed on the base plate and used to adjust the height of the handrail.

[0013] Preferably, the adjusting mechanism includes a threaded rod and a trapezoidal block, the trapezoidal block being threadedly connected to the threaded rod, and rotating the threaded rod can drive the trapezoidal block to move in the vertical direction.

[0014] Preferably, the adjusting mechanism further includes a limiting rod, which is slidably connected to the trapezoidal block, and the movement of the trapezoidal block is used to drive the limiting rod to extend or retract in the horizontal direction.

[0015] Preferably, the handrail has multiple limiting holes, and the limiting rod is used to selectively insert into the limiting holes to lock the height of the handrail.

[0016] Preferably, the adjustment mechanism further includes a fixing component, which includes a fixing rod, the support rod being slidably inserted into the fixing rod, and the limiting rod passing through the fixing rod to be inserted into the limiting hole.

[0017] Preferably, the adjusting mechanism further includes a connecting block, and the threaded rod is rotatably mounted on the connecting block; the fixing component further includes a counterweight rod and an insert block, the counterweight rod is slidably inserted into the connecting block and fixedly connected to the insert block, and the insert block is used to detachably abut against the threaded rod to limit its rotation.

[0018] This utility model has the following beneficial effects:

[0019] 1. This utility model, by setting a linkage telescopic dustproof mechanism driven by a motor, can automatically unfold the dustproof film to cover the opening of the truck bed, which solves the problems of dust flying, environmental pollution and material spillage and waste caused by the open truck bed when transporting powdery materials in the prior art. It achieves the technical effects of automated dust prevention, reduced material loss and improved environmental protection of the construction environment.

[0020] 2. This utility model, by setting up a handrail height adjustment mechanism that uses a trapezoidal block and a limiting rod to cooperate, allows the operator to easily lock or unlock the handrail to adjust its height. This solves the problem in the prior art where the handrail height of the material transport vehicle is fixed, making it difficult to adapt to the needs of operators of different heights and easily leading to operator fatigue and physical strain. It achieves the technical effects of improving operating comfort, reducing labor intensity, and enhancing the universality of the equipment.

[0021] 3. This utility model solves the problems of traditional material transport vehicles having single functions, poor environmental performance, and lack of ergonomic considerations by integrating an automated dust prevention mechanism with a user-friendly height adjustment mechanism. It achieves a comprehensive technical effect of diversified vehicle functions, convenient and intelligent operation, and safe and comfortable use, significantly improving the practicality and modernization level of construction tools. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of a construction material transport vehicle proposed in this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the cargo bed of a construction material transport vehicle proposed in this utility model;

[0024] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 for Figure 2 Enlarged view of point B in the middle;

[0026] Figure 5 This is a schematic diagram of the structure of a connecting block for a construction material transport vehicle proposed in this utility model;

[0027] Figure 6 for Figure 5 A magnified view of point C in the middle.

[0028] Legend:

[0029] 1. Cart bed;

[0030] 2. Dustproof mechanism; 21. Motor; 22. Drive wheel; 23. Belt; 24. Driven wheel; 25. Shaft; 26. Bevel gear one; 27. Shrink assembly; 271. Lead screw; 272. Bevel gear two; 273. Fixed block; 274. Sliding block; 275. Rotating rod; 276. Connecting rod; 277. Sliding rod; 278. Dustproof membrane; 279. Support rod;

[0031] 3. Base plate;

[0032] 4. Adjustment mechanism; 41. Connecting block; 42. Threaded rod; 43. Trapezoidal block; 44. Limiting rod; 45. Fixing component; 451. Counterweight rod; 452. Embedded block; 453. Fixing rod; 454. Handrail; 455. Limiting hole. Detailed Implementation

[0033] Example:

[0034] Please refer to Figures 1 to 6 This utility model provides a construction material transport vehicle, which aims to solve the problems in the prior art where the open cargo box of the construction material transport vehicle easily generates dust pollution and causes material spillage during transportation, and the fixed height of the pushcart handle makes it difficult to adapt to the needs of operators of different heights.

[0035] like Figure 1 As shown, the construction material transport vehicle includes a truck bed 1 and a bottom plate 3 set below the truck bed 1. The truck bed 1 is used to load materials such as cement ash, and the bottom plate 3 is used to support the truck bed 1. The construction material transport vehicle also includes a dustproof mechanism 2 set inside the truck bed 1 and an adjustment mechanism 4 set on the bottom plate 3.

[0036] like Figures 2 to 4 As shown, the dustproof mechanism 2 includes a motor 21, with a drive wheel 22 fixedly connected to the output end of the motor 21. The drive wheel 22 is connected to a driven wheel 24 via a belt 23. A rotating shaft 25 is fixedly connected to the driven wheel 24 on the same axis. A bevel gear 26 is fixedly connected to the end of the rotating shaft 25. The dustproof mechanism 2 also includes a shrinking assembly 27, which includes a bevel gear 272 meshing with the bevel gear 26. A lead screw 271 is fixedly connected to the bevel gear 272 on the same axis. Multiple sliding... Block 274 is threadedly connected to lead screw 271. Adjacent sliding blocks 274 are rotatably connected through connecting rod 276. Each sliding block 274 is fixedly connected to a sliding rod 277, and a dustproof membrane 278 is fixedly connected to the sliding rod 277. Motor 21 drives driven wheel 24 to rotate through drive wheel 22 and belt 23, so as to drive sliding block 274 to move via rotating shaft 25, bevel gear 1 26, bevel gear 272 and lead screw 271, thereby causing dustproof membrane 278 to expand or contract.

[0037] Please refer to the following carefully. Figure 2 , Figure 3 and Figure 4 The core structure will be described in detail below:

[0038] The retraction assembly 27 also includes a fixed block 273 and a rotating rod 275. The fixed block 273 is fixedly connected to the inside of the bucket 1. The lead screw 271 is rotatably mounted on the fixed block 273. The fixed block 273 provides stable axial support for the rotation of the lead screw 271. One end of the rotating rod 275 is rotatably connected to one of the connecting rods 276, while the other end of the rotating rod 275 is rotatably connected to the fixed block 273. This structure forms the initial motion reference of a crank-connecting rod mechanism. A support rod 279 is also fixedly connected inside the bucket 1. The support rod 279 is arranged along the axial direction of the lead screw 271. Its function is to provide support and guidance for the linear motion of the sliding block 274.

[0039] In the assembled state, the sliding block 274 not only engages with the lead screw 271 through its internal threaded hole, but its bottom is also slidably supported on the upper surface of the support rod 279. This structure, which combines the drive of the lead screw 271 with the guidance of the support rod 279, ensures that the sliding block 274 can smoothly reciprocate along a predetermined trajectory when it receives the rotational driving force of the lead screw 271, avoiding deflection or shaking during the movement, thereby ensuring that the dustproof film 278 connected to the sliding rod 277 can be unfolded flat.

[0040] As a preferred implementation method, to achieve a high degree of customization for pushing the material transport vehicle, please refer to... Figure 1 , Figure 5 and Figure 6 The construction material transport vehicle also includes a support rod 454 and an adjustment mechanism 4 for adjusting the height of the support rod 454. The adjustment mechanism 4 is set on the base plate 3. The adjustment mechanism 4 includes a threaded rod 42 and a trapezoidal block 43 threadedly connected to the threaded rod 42. By rotating the threaded rod 42, the trapezoidal block 43 can be driven to move in the vertical direction.

[0041] Furthermore, the adjustment mechanism 4 also includes a limiting rod 44 slidably connected to the trapezoidal block 43. The movement of the trapezoidal block 43 is used to drive the limiting rod 44 to extend or retract in the horizontal direction. A plurality of limiting holes 455 are provided on the handrail 454. The limiting rod 44 is used to selectively insert into the limiting hole 455, thereby reliably locking the height of the handrail 454.

[0042] To ensure the stability of the adjustment process and the reliability of the structure, the adjustment mechanism 4 also includes a fixing component 45, which includes a fixing rod 453. The handrail 454 is slidably inserted into the fixing rod 453, thereby providing guidance for the lifting and lowering movement of the handrail 454. When the limiting rod 44 extends, it needs to pass through the fixing rod 453 to insert into the limiting hole 455 of the handrail 454.

[0043] As a more specific implementation, the adjustment mechanism 4 also includes a connecting block 41, the threaded rod 42 is rotatably mounted on the connecting block 41, and the fixing assembly 45 also includes a counterweight rod 451 and an insert block 452. The counterweight rod 451 is slidably inserted into the connecting block 41 and fixedly connected to the insert block 452. The insert block 452 is used to detachably abut against the threaded rod 42 to limit its rotation in the non-adjustment state and prevent accidental changes in height.

[0044] The working principle is as follows:

[0045] When it is necessary to cover the cargo hopper 1 filled with materials with dust, the motor 21 is started. The motor 21 drives the drive wheel 22 at its output end to rotate. The drive wheel 22 drives the driven wheel 24 to rotate synchronously through the belt 23. Since the driven wheel 24 is fixed coaxially with the rotating shaft 25, the rotating shaft 25 rotates accordingly and transmits the motion to the bevel gear 26 at its end. The bevel gear 26 meshes with the bevel gear 272 in the shrinking assembly 27, driving the bevel gear 272 and the lead screw 271 fixed coaxially with it to rotate. The rotation of the lead screw 271 causes multiple sliding blocks 274 connected to its threads to move smoothly in a straight line along the guide of the support rod 279 to the outside or inside. Under the cooperative constraint of the connecting rod 276 and the rotating rod 275, the sliding block 274 drives the sliding rod 277 fixed on it to smoothly unfold the dustproof film 278 to cover the opening of the cargo hopper 1, or to shrink and fold it. Through this electromechanical integrated dustproof mechanism 2, the problem of dust flying and spilling during the material transportation process is solved.

[0046] When the height of the handrail 454 needs to be adjusted, the user first pulls up the counterweight rod 451. The counterweight rod 451 drives the embedded block 452 to move, thereby releasing the rotation restriction on the threaded rod 42. At this time, rotating the threaded rod 42 will drive the trapezoidal block 43, which is threadedly engaged with it, to move vertically upward or downward. When the trapezoidal block 43 moves upward, its inclined structure will push the two limiting rods 44 to extend outward in the horizontal direction, pass through the fixed rod 453, and insert into the limiting hole 455 of the appropriate height on the handrail 454, thereby achieving a firm lock on the handrail 454. When the trapezoidal block 43 moves downward, it will drive the limiting rods 44 to retract inward and disengage from the limiting hole 455. At this time, the handrail 454 can slide freely within the fixed rod 453 to adjust the height. Through this coordinated action of the adjustment mechanism 4, this utility model solves the problem of inconvenience for people of different heights to operate due to the fixed height of the handrail.

Claims

1. A construction material transport vehicle, comprising a truck bed (1) and a floor plate (3) disposed below the truck bed (1), characterized in that, The construction material transport vehicle also includes a dustproof mechanism (2) installed inside the truck bed (1); The dustproof mechanism (2) includes a motor (21), a driven wheel (24) that is connected to the motor (21) via a belt (23), a rotating shaft (25) that is coaxially and fixedly connected to the driven wheel (24), and a bevel gear (26) that is fixedly connected to the end of the rotating shaft (25); The dustproof mechanism (2) further includes a shrinking assembly (27), which includes a second bevel gear (272) meshing with the first bevel gear (26), a lead screw (271) coaxially fixedly connected to the second bevel gear (272), a plurality of sliding blocks (274) threadedly connected to the lead screw (271), a connecting rod (276) rotatably connected between the sliding blocks (274), and a sliding rod (277) fixedly connected to the sliding blocks (274). A dustproof film (278) is fixedly connected to the sliding rod (277); The motor (21) drives the driven wheel (24) to rotate via the drive wheel (22) and the belt (23) fixedly connected to its output end, so as to drive the sliding block (274) to move via the rotating shaft (25), the first bevel gear (26), the second bevel gear (272) and the lead screw (271), thereby causing the dustproof film (278) to expand or contract.

2. The construction material transport vehicle according to claim 1, characterized in that, The retraction assembly (27) further includes a fixed block (273) and a rotating rod (275). The lead screw (271) is rotatably mounted on the fixed block (273). One end of the rotating rod (275) is rotatably connected to one of the connecting rods (276), and the other end is rotatably connected to the fixed block (273). A support rod (279) is also fixedly connected inside the truck bed (1), and the sliding block (274) is slidably supported on the support rod (279).

3. The construction material transport vehicle according to claim 1, characterized in that, The construction material transport vehicle also includes an adjustment mechanism (4) and a handrail (454). The adjustment mechanism (4) is set on the base plate (3) and is used to adjust the height of the handrail (454).

4. The construction material transport vehicle according to claim 3, characterized in that, The adjustment mechanism (4) includes a threaded rod (42) and a trapezoidal block (43). The trapezoidal block (43) is threadedly connected to the threaded rod (42). Rotating the threaded rod (42) can drive the trapezoidal block (43) to move in the vertical direction.

5. The construction material transport vehicle according to claim 4, characterized in that, The adjustment mechanism (4) further includes a limiting rod (44), which is slidably connected to the trapezoidal block (43). The movement of the trapezoidal block (43) is used to drive the limiting rod (44) to extend or retract in the horizontal direction.

6. The construction material transport vehicle according to claim 5, characterized in that, The handrail (454) has multiple limiting holes (455), and the limiting rod (44) is used to selectively insert into the limiting holes (455) to lock the height of the handrail (454).

7. The construction material transport vehicle according to claim 6, characterized in that, The adjustment mechanism (4) further includes a fixing component (45), which includes a fixing rod (453), a support rod (454) which is slidably inserted into the fixing rod (453), and a limiting rod (44) which passes through the fixing rod (453) to be inserted into the limiting hole (455).

8. The construction material transport vehicle according to claim 7, characterized in that, The adjusting mechanism (4) further includes a connecting block (41), and the threaded rod (42) is rotatably mounted on the connecting block (41); the fixing assembly (45) further includes a counterweight rod (451) and an insert block (452), the counterweight rod (451) is slidably inserted into the connecting block (41) and fixedly connected to the insert block (452), and the insert block (452) is used to detachably abut against the threaded rod (42) to limit its rotation.

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