Road construction material transportation device

Abstract

The invention belongs to the technical field of material transportation, and particularly relates to a road construction material transportation device, four independently rotating wheels enable the transportation device to be more flexible and stable during material transportation, and a combined design of a hard spring, a sliding rod and a sliding sleeve is adopted in the device, so that when the transportation device needs to be pushed and pulled vigorously, the transportation device is more flexible and stable. When the transportation device does not need to be pushed vigorously, the hub motor is in a closed state, so that the power consumption of the transportation device is reduced, the endurance time of the transportation device is prolonged, and the bottom of the baffle is designed to be oppositely opened left and right, so that the material hopper does not need to be driven by additional power to unload. By means of the structure, residues of materials in the hopper are reduced, loss and waste of the materials are reduced, construction is faster and more efficient, meanwhile, the use safety of the device is improved, the left baffle and the right baffle can be closed only by pulling the front vertical rod and the rear vertical rod left and right through the arrangement of the reset assembly, the device is easy to operate, and the use convenience of the device is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of material transportation, and in particular relates to a road construction material transportation device. Background Art

[0002] During road construction, the transportation of materials such as concrete is a crucial link. However, in many complex construction environments, such as narrow construction sites or confined spaces, large mixing tank trucks are often difficult to drive into. The traditional practice is to use manual bucket trucks to pick up concrete from the mixer for transfer construction. Although the traditional manual bucket truck has solved the problem of material transportation to a certain extent, it has many shortcomings.

[0003] First, workers pushing a bucket truck filled with concrete need to exert great physical strength to keep the vehicle stable and overcome various resistances, especially when pushing the bucket truck to start, which not only increases the labor intensity of workers, but also reduces construction efficiency. Secondly, when pouring concrete, the design of traditional wheelbarrows is often not flexible and convenient enough. Workers need to tilt the wheelbarrow with force, which is easy to lift the workers due to its heavy weight, which not only poses a serious threat to the safety of workers, but also may cause damage to the bucket truck; or use other tools to assist in unloading, which not only increases the complexity of operation, but also further increases the labor intensity of workers.

[0004] In addition, although there are some power-assisted trolleys on the market, these trolleys tend to consume a lot of energy and are not suitable for long-term work. They may require electricity or other energy to drive, which not only increases the cost of use, but may also be limited by the power supply at the construction site. Summary of the invention

[0005] The purpose of the present invention is to provide a road construction material transportation device to solve the problems mentioned in the background technology.

[0006] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows:

[0007] A road construction material transport device comprises a frame, two wheels distributed front and back are rotatably installed on the left and right sides of the frame, a material bucket is installed in the middle of the frame, left and right opposing baffles are installed at the bottom of the material bucket, a rotating shaft rotatably connected to the bottom of the material bucket is fixed on the outer sides of the two baffles, fixing bolts are fixed on the front and rear ends of the adjacent sides of the two baffles, fixing components for fixing the fixing bolts are installed on the front and rear sides of the material bucket, a battery is installed on the lower side of the frame, a control module is installed on the inner side of the battery, hub motors for driving the wheels are installed on the inner sides of the left and right wheels on the front side, the hub motors are electrically connected to the control module, and the A sliding rod symmetrically distributed on the left and right sides is installed on the front side of the frame, and a fixing plate fixed to the frame is connected to the front and rear ends of the sliding rod, a sliding sleeve is installed on the middle part of the sliding rod for sliding forward and backward sliding, and hard springs are installed on the front and rear sides of the sliding sleeve, the hard spring is sleeved on the outside of the sliding rod and the front and rear ends are respectively fixedly connected to the sliding sleeve and the fixing plate, a hand push rod is connected between the two sliding sleeves, a top sheet is fixed on the lower side of one of the sliding sleeves, and contact switches fixedly connected to the frame and electrically connected to the control panel are symmetrically installed on the front and rear sides of the top sheet, the control end of the contact switch is spaced apart from the top sheet, and a reset component for controlling the reset of the baffle is provided on the rear side of the material hopper;

[0008] The reset assembly includes a slideway that is distributed at intervals in the front and back and fixed to the material hopper, a slider is slidably connected to the upper side of the slideway left and right, a vertical rod is fixedly connected to the middle part of the slider, two first sprockets are installed on the lower side of the slideway on the front side, a first chain is connected between the two first sprockets, the first sprocket on the left side is rotatably connected to the rotating shaft on the left side, the first sprocket on the right side is concentrically fixed to the rotating shaft on the right side, the vertical rod on the front side is drivingly connected to the first chain, two second sprockets are installed on the lower side of the slideway on the rear side, a second chain is connected between the two second sprockets, the second sprocket on the left side is concentrically fixed to the rotating shaft on the left side, the second sprocket on the right side is rotatably connected to the rotating shaft on the right side, and the lower side of the vertical rod on the rear side is drivingly connected to the second chain.

[0009] There are four fixing components, which are installed in groups of two on the left and right sides of the material hopper respectively. The fixing component includes a bracket fixed to the material hopper, a locking hook matching the fixing bolt is hinged on the upper side of the bracket, and an inclined surface is provided on the bottom of the front and rear locking hooks on the side thereof, a torsion spring connected to the bracket for transmission is connected to the side of the locking hook, a limiting rod is fixed to the side of the locking hook close to the material hopper, a wire tube is connected to the upper side of the bracket, a pull wire is slidably connected to the inner side of the wire tube, one end of the pull wire is connected to the outer side of the locking hook for transmission, and a gate handle connected to the pull wire and the wire tube is installed on the upper side of the hand push rod.

[0010] There are two brake handles which are symmetrically distributed on the left and right sides. The wire tube and the pull wire of the left fixed component are connected to the brake handle on the left side, and the wire tube and the pull wire of the right fixed component are connected to the brake handle on the right side.

[0011] Four lifting assemblies are installed on the upper side of the frame, which are grouped in pairs and symmetrically distributed left and right. The lifting assembly includes a connecting rod rotatably connected to the frame, the connecting rod is arranged between the frame and the material bucket, the four connecting rods are arranged in the same direction, and the lower ends are rotatably connected to the material bucket, a worm wheel transmission-connected to the upper end of the connecting rod is rotatably installed on the outer side of the frame, a worm screw meshing with the worm wheel is rotatably installed on the upper side of the frame, and forward and backward rotating rods are rotatably installed on the left and right sides of the frame, and the worm screws on the left and right sides are transmission-connected to the rotating rod on the same side, a third sprocket is concentrically fixed to the front side of the two rotating rods, a third chain is connected between the two third sprockets, and a crank handle concentrically fixed to the front side of one of the third sprockets is rotatably installed.

[0012] The side wall on the rear side of the material hopper is an inclined plate sloping downward from back to front. The left and right side walls of the material hopper are right-angled trapezoids that are wide at the top and narrow at the bottom with the inclined surface facing backward. A vertical horizontal plate is fixed on the lower side of the inclined plate, and the two fixing components on the rear side are installed on the upper side of the horizontal plate.

[0013] A protective shell capable of covering the worm wheel, the worm, the third sprocket and the third chain is provided on the outer side of the frame, and a rubber telescopic protective sleeve is covered on the outer side of the slideway.

[0014] A supporting spring is fixed on one side of the control end of the contact switch close to the top sheet.

[0015] The four independently rotating wheels make the transport device more flexible and stable when transporting materials. The device adopts a combination of hard springs, slide bars and sleeves, so that when the transport device needs to be pushed and pulled vigorously, the top plate and touch buttons will automatically control the hub motor to provide power for the wheels, thereby reducing the labor intensity of workers. When the transport device does not need to be pushed vigorously, the hub motor is in a closed state, thereby reducing the power consumption of the transport device and increasing its endurance. The baffle is installed at the bottom of the material bucket and adopts a left-right opening design. When the baffle is opened, the material is discharged from the bottom of the device by gravity, and no additional power is required to drive the unloading, which improves the overall work efficiency. At the same time, it can also reduce the residual material in the bucket, reduce material loss and waste, make construction faster and more efficient, and also The safety of the device is improved. The setting of the reset component makes it possible to close the left and right baffles by simply pulling the two vertical rods in the front and rear left and right, and also makes the operation of the reset component simple, which improves the convenience of use of the transportation device. The gate handle controls the rotation of the lock hook through a pull wire to lock and unlock the baffle. The front and rear fixing components, which are arranged in groups of two and distributed left and right, make the baffles on the left and right sides able to be fixed separately, which improves the stability of the fixing component. The torsion spring and the limit rod can make the hook automatically reset when not in use, and cooperate with the inclined surface to achieve automatic locking when the baffle is closed, so that the structure of the fixing component is simple and reliable, and its maintenance cost is reduced. The setting of the two gate handles requires the user to pinch different gate handles with both hands at the same time to release the baffle for unloading. The configuration requires only a small grip force when the gate handle is used, and the user can control the gate handle more easily, reducing hand fatigue and improving the comfort of operation. At the same time, when the staff releases the baffle, they need to hold the hand push rod with both hands to avoid contact with the vertical rod, thereby improving the safety of the transportation device; the cooperation of the third sprocket and the third chain enables the left and right rotating rods to rotate synchronously at the same time, and the cooperation of the worm wheel, worm and connecting rod enables the turning of the crank handle to raise and lower the material bucket as a whole, so that the material bucket can meet different height requirements and enable the material bucket to better match the height of different mixer discharge ports, thereby improving the applicability of the transportation device. At the same time, because the worm gear mechanism has a one-way locking feature, the cooperation of the worm wheel, worm and connecting rod also makes the lifting group The components have strong stability and increase the safety of the device during use; the material hopper is wide at the top and narrow at the bottom, and the rear side wall is an inclined plate that tilts downward from the back to the front, so that the material can slide into the inner side of the material hopper more smoothly during use, and at the same time, the fixed components on the rear side of the material hopper can be shielded and protected, thereby extending the service life of the device; the cooperation between the protective shell and the rubber telescopic protective sleeve enhances the durability of the device, extends the service life, and also improves the protection of the operator; the support spring fixedly connected to the control end of the contact switch ensures the normal operation of the contact switch, and also prevents the top sheet from squeezing the contact switch in extreme cases, thereby effectively protecting the contact switch, further increasing the stability and safety of the device during use; BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further illustrated by means of the non-limiting examples given in the accompanying drawings.

[0017] Figure 1 It is a structural schematic diagram of the present invention.

[0018] Figure 2 It is a schematic diagram of the structure of the present invention without installing a protective shell.

[0019] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0020] Figure 4 for Figure 2 Schematic diagram of the enlarged structure at point B in the middle.

[0021] Figure 5 It is a schematic diagram of the structure of the present invention without installing a material hopper.

[0022] Figure 6 for Figure 5 Schematic diagram of the enlarged structure at point C in the middle.

[0023] Figure 7 It is a structural schematic diagram of the material hopper and the reset assembly in the present invention.

[0024] Figure 8 for Figure 7 Schematic diagram of the enlarged structure at D in the middle.

[0025] Frame 1, wheel 2, material bucket 3, baffle 4, rotating shaft 5, fixing bolt 6, battery 7, hub motor 8, sliding rod 9, fixing plate 10, sliding sleeve 11, hard spring 12, hand push rod 13, top plate 14, contact switch 15, slideway 16, slider 17, vertical rod 18, first sprocket 19, first chain 20, second sprocket 21, second chain 22, bracket 23, locking hook 24, inclined plane 25, torsion spring 26, limit rod 27, wire tube 28, pull wire 29, brake handle 30, connecting rod 31, worm wheel 32, worm 33, rotating rod 34, third sprocket 35, third chain 36, crank 37, inclined plate 38, horizontal plate 39, protective shell 40, rubber telescopic protective cover 41, support spring 42. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0027] like Figure 1-8As shown, a road construction material transportation device includes a frame 1, two wheels 2 distributed front and back are rotatably installed on the left and right sides of the frame 1, a material bucket 3 is installed in the middle of the frame 1, and baffles 4 opened left and right are installed at the bottom of the material bucket 3, and rotating shafts 5 rotatably connected to the bottom of the material bucket 3 are fixed on the outer sides of the two baffles 4, and fixing bolts 6 are fixed on the front and rear ends of the side close to the two baffles 4. Fixing components for fixing the fixing bolts 6 are installed on the front and rear sides of the material bucket 3, a battery 7 is installed on the lower side of the frame 1, and a control module is installed on the inner side of the battery 7, and hub motors 8 for driving the wheels 2 are installed on the inner sides of the left and right wheels 2 on the front side, and the hub motors 8 are electrically connected to the control module. A sliding rod 9 is installed with left-right symmetrical distribution, and the front and rear ends of the sliding rod 9 are connected with a fixing plate 10 fixed to the frame 1, a sliding sleeve 11 is installed in the middle of the sliding rod 9 for sliding forward and backward sliding, and hard springs 12 are installed on the front and rear sides of the sliding sleeve 11, and the hard spring 12 is sleeved on the outside of the sliding rod 9 and the front and rear ends are respectively fixedly connected to the sliding sleeve 11 and the fixing plate 10, and a hand push rod 13 is connected between the two sliding sleeves 11, and a top plate 14 is fixed on the lower side of one of the sliding sleeves 11, and contact switches 15 fixedly connected to the frame 1 and electrically connected to the control panel are symmetrically installed on the front and rear sides of the top plate 14, and the control end of the contact switch 15 is spaced apart from the top plate 14, and a reset component for controlling the reset of the baffle 4 is provided on the rear side of the material hopper 3;

[0028] The reset assembly includes a slide 16 which is spaced apart in the front and rear and fixed to the material hopper 3. A slider 17 is slidably connected to the upper side of the slide 16, and a vertical rod 18 is fixedly connected to the middle of the slider 17. Two first sprockets 19 are installed on the lower side of the front slide 16, and a first chain 20 is connected between the two first sprockets 19. The first sprocket 19 on the left is rotatably connected to the rotating shaft 5 on the left, and the first sprocket 19 on the right is concentrically fixed to the rotating shaft 5 on the right. The vertical rod 18 on the front is transmission-connected to the first chain 20, and two second sprockets 21 are installed on the lower side of the rear slide 16. A second chain 22 is connected between the two second sprockets 21. The second sprocket 21 on the left is concentrically fixed to the rotating shaft 5 on the left, and the second sprocket 21 on the right is rotationally connected to the rotating shaft 5 on the right, and the lower side of the vertical rod 18 on the rear is transmission-connected to the second chain 22.

[0029] When the present invention is not in use, the baffle 4 is in a closed state, and the concrete and other materials to be transported are placed inside the material bucket 3. When the material inside the material bucket 3 is light, or the ground is flat, the worker does not need to use much force to push the hand push rod 13. At this time, the hard springs 12 on both sides of the sliding sleeve 11 prevent the top plate 14 on the lower side of the sliding sleeve 11 from contacting the contact switch 15, and the entire transportation device is pushed by the worker's strength; when the material inside the material bucket 3 is heavy, or the terrain is uneven, and the worker needs more force to push and pull the device, the hand push rod 13 cooperates with the hard spring 12 to drive the sliding sleeve 11 to move forward and backward, and the control module is responsible for receiving and processing signals from sensors such as the contact switch 15, and controlling the operation of the hub motor 8. Therefore, when it is necessary to pull the transportation device vigorously, When the transport device is pushed vigorously, the top plate 14 will abut against the contact switch 15 on the front side, and the hub motor 8 will assist the transport device in the pulling direction; when the transport device needs to be pushed vigorously, the top plate 14 will abut against the contact switch 15 on the rear side, and the hub motor 8 will assist the transport device in the pushing direction; when the material inside the material hopper 3 needs to be dumped, the fixing assembly releases the fixing bolt 6, and the two baffles 4 are opened to each other, and the material leaks out from between them; since the first sprocket 19 on the left is concentrically fixed with the rotating shaft 5 on the right, and the second sprocket 21 on the left is concentrically fixed with the rotating shaft 5 on the left, therefore, pulling the front vertical rod 18 left and right can control the baffle 4 on the right to close, and pulling the rear vertical rod 18 left and right can control the baffle 4 on the left to close.

[0030] The four independently rotating wheels 2 make the transport device more flexible and stable when transporting materials. The device adopts a combination design of hard springs 12, slide bars 9 and sleeves 11, so that when the transport device needs to be pushed and pulled vigorously, the top plate 14 and the touch button will automatically control the hub motor 8 to provide assistance to the wheel 2, thereby reducing the labor intensity of the workers. When the transport device does not need to be pushed vigorously, the hub motor 8 is in a closed state, thereby reducing the power consumption of the transport device and increasing its endurance. The baffle 4 is installed at the bottom of the material bucket 3 and adopts a left-right opening design. When the baffle 4 is opened, the material is unloaded from the bottom of the device by gravity, and no additional power is required to drive the unloading, thereby improving the overall work efficiency. At the same time, it can also reduce the residual material in the bucket, reduce material loss and waste, make construction faster and more efficient, and also improve the safety of the device. The setting of the reset component makes it only necessary to pull the front and rear vertical rods 18 left and right to close the left and right baffles 4, which also makes the operation of the reset component simple and improves the convenience of use of the transport device.

[0031] There are four fixing components, which are installed in groups of two on the left and right sides of the material hopper 3 respectively. The fixing components include a bracket 23 fixed to the material hopper 3, a locking hook 24 matching the fixing bolt 6 is hinged on the upper side of the bracket 23, and an inclined surface 25 is provided on the bottom of the side close to the front and rear locking hooks 24. A torsion spring 26 connected to the bracket 23 for transmission is connected to the side of the locking hook 24. A limiting rod 27 is fixed to the side of the locking hook 24 close to the material hopper 3. A wire tube 28 is connected to the upper side of the bracket 23, and a pull wire 29 is slidably connected to the inner side of the wire tube 28. One end of the pull wire 29 is transmission connected to the outer side of the locking hook 24, and a gate handle 30 connected to the pull wire 29 and the wire tube 28 is installed on the upper side of the hand push rod 13.

[0032] The gate handle 30 controls the rotation of the lock hook 24 through the pull wire 29 to lock and unlock the baffle 4. The fixing components, which are arranged in groups of two at the front and back and distributed left and right, enable the baffles 4 on the left and right sides to be fixed separately, thereby improving the stability of the fixing components. The torsion spring 26 and the limit rod 27 enable the hook to automatically reset when not in use, and cooperate with the inclined surface 25 to achieve automatic locking when the baffle 4 is closed, thereby making the structure of the fixing component simple and reliable, and reducing its maintenance cost.

[0033] There are two brake handles 30 symmetrically arranged on the left and right sides. The wire tube 28 and the pull wire 29 of the left fixed component are connected to the left brake handle 30 , and the wire tube 28 and the pull wire 29 of the right fixed component are connected to the right brake handle 30 .

[0034] The setting of the two gate handles 30 requires the user to use both hands to simultaneously squeeze different gate handles 30 in order to release the baffle 4 for unloading. This setting requires only a smaller gripping force when using the gate handle 30, and the user can control the gate handle 30 more easily, reducing hand fatigue and improving the comfort of operation. At the same time, when the staff releases the baffle 4, they need to hold the hand push rod 13 with both hands to avoid contact with the vertical rod 18, thereby improving the safety of the transportation device.

[0035] Four lifting assemblies are installed on the upper side of the frame 1, which are arranged in groups of two front and rear and symmetrically distributed left and right. The lifting assemblies include a connecting rod 31 rotatably connected to the frame 1, the connecting rod 31 is arranged between the frame 1 and the material bucket 3, the four connecting rods 31 are arranged in the same direction, and the lower ends are rotatably connected to the material bucket 3, a worm wheel 32 is rotatably installed on the outer side of the frame 1, a worm 33 meshing with the worm wheel 32 is rotatably installed on the upper side of the frame 1, and a rotating rod 34 facing forward and backward is rotatably installed on the left and right sides of the frame 1, and the worm 33 on the left and right sides are transmission connected to the rotating rod 34 on the same side, a third sprocket 35 is concentrically fixed on the front side of the two rotating rods, a third chain 36 is connected between the two third sprockets 35, and a crank 37 concentrically fixed thereto is rotatably installed on the front side of one of the third sprockets 35.

[0036] The cooperation between the third sprocket 35 and the third chain 36 enables the left and right rotating rods 34 to rotate synchronously at the same time. The cooperation between the worm wheel 32, the worm 33 and the connecting rod 31 enables the turning of the crank 37 to lift the material bucket 3 as a whole, so that the material bucket 3 can meet different height requirements and better match the height of the discharge port of different mixers, thereby improving the applicability of the transportation device. At the same time, since the worm wheel 32 and the worm 33 mechanism have a one-way locking feature, the cooperation between the worm wheel 32, the worm 33 and the connecting rod 31 also makes the lifting assembly have strong stability and increases the safety of the device during use.

[0037] The side wall on the rear side of the material hopper 3 is an inclined plate 38 that tilts downward from the back to the front. The left and right side walls of the material hopper 3 are in a right-angled trapezoid with a wide top and a narrow bottom and an inclined surface 25 facing backwards. A vertical horizontal plate 39 is fixed to the lower side of the inclined plate 38, and two fixed components on the rear side are installed on the upper side of the horizontal plate 39.

[0038] The material hopper 3 is wide at the top and narrow at the bottom, and the rear side wall is provided with an inclined plate 38 that slopes downward from the back to the front, so that the material can slide into the inner side of the material hopper 3 more smoothly during use, and at the same time, the fixed components on the rear side of the material hopper 3 can be shielded and protected, thereby extending the service life of the device.

[0039] A protective shell 40 is disposed on the outer side of the frame 1 and can cover the worm wheel 32 , the worm 33 , the third sprocket 35 and the third chain 36 . A rubber telescopic protective sleeve 41 is coated on the outer side of the slideway 16 .

[0040] A protective shell 40 is provided on the outside of the frame 1 to protect components such as the worm wheel 32, the worm 33, the third sprocket 35 and the third chain 36 from pollution and damage. The outside of the slideway 16 is covered with a rubber telescopic protective cover 41 to increase the sliding smoothness and durability of the slider 17. The cooperation between the protective shell 40 and the rubber telescopic protective cover 41 enhances the durability of the device, extends its service life, and also improves the protection of the operator.

[0041] A support spring 42 is fixed to a side of the control end of the contact switch 15 close to the top plate 14 .

[0042] The support spring 42 fixedly connected to the control end of the contact switch 15 not only ensures the normal operation of the contact switch 15, but also prevents the top plate 14 from squeezing the contact switch 15 in extreme cases, thereby effectively protecting the contact switch 15 and further increasing the stability and safety of the device during use.

[0043] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A road construction material transport device, comprising a frame, wherein two wheels arranged front and rear are rotatably mounted on both left and right sides of the frame, and characterized in that: A material hopper is installed in the middle of the frame, and baffles opened left and right are installed at the bottom of the material hopper. A rotating shaft rotatably connected to the bottom of the material hopper is fixed on the outer sides of the two baffles. Fixing bolts are fixed on the front and rear ends of the adjacent sides of the two baffles. Fixing components for fixing the fixing bolts are installed on the front and rear sides of the material hopper. A battery is installed on the lower side of the frame, and a control module is installed on the inner side of the battery. Hub motors for driving the wheels are installed on the inner sides of the left and right wheels on the front side, and the hub motors are electrically connected to the control module. Slide bars symmetrically distributed on the left and right are installed on the front side of the frame. The front and rear ends are both connected with a fixing plate fixed to the frame, a sliding sleeve is slidably installed in the middle of the slide rod, and hard springs are installed on the front and rear sides of the sliding sleeve, the hard spring is sleeved on the outside of the slide rod and the front and rear ends are respectively fixedly connected to the slide sleeve and the fixing plate, a hand push rod is connected between the two slide sleeves, a top plate is fixed on the lower side of one of the slide sleeves, and contact switches fixedly connected to the frame and electrically connected to the control panel are symmetrically installed on the front and rear sides of the top plate, the control end of the contact switch is spaced apart from the top plate, and a reset component for controlling the reset of the baffle is provided on the rear side of the material hopper; The reset assembly includes a slideway that is distributed at intervals in the front and back and fixed to the material hopper, a slider is slidably connected to the upper side of the slideway left and right, a vertical rod is fixedly connected to the middle part of the slider, two first sprockets are installed on the lower side of the slideway on the front side, a first chain is connected between the two first sprockets, the first sprocket on the left side is rotatably connected to the rotating shaft on the left side, the first sprocket on the right side is concentrically fixed to the rotating shaft on the right side, the vertical rod on the front side is drivingly connected to the first chain, two second sprockets are installed on the lower side of the slideway on the rear side, a second chain is connected between the two second sprockets, the second sprocket on the left side is concentrically fixed to the rotating shaft on the left side, the second sprocket on the right side is rotatably connected to the rotating shaft on the right side, and the lower side of the vertical rod on the rear side is drivingly connected to the second chain.

2. A road construction material transport device according to claim 1, characterized in that: There are four fixing components, which are installed in groups of two on the left and right sides of the material hopper respectively. The fixing component includes a bracket fixed to the material hopper, a locking hook matching the fixing bolt is hinged on the upper side of the bracket, and an inclined surface is provided on the bottom of the front and rear locking hooks on the side thereof, a torsion spring connected to the bracket for transmission is connected to the side of the locking hook, a limiting rod is fixed to the side of the locking hook close to the material hopper, a wire tube is connected to the upper side of the bracket, a pull wire is slidably connected to the inner side of the wire tube, one end of the pull wire is connected to the outer side of the locking hook for transmission, and a gate handle connected to the pull wire and the wire tube is installed on the upper side of the hand push rod.

3. A road construction material transport device according to claim 2, characterized in that: There are two brake handles which are symmetrically distributed on the left and right sides. The wire tube and the pull wire of the left fixed component are connected to the brake handle on the left side, and the wire tube and the pull wire of the right fixed component are connected to the brake handle on the right side.

4. A road construction material transport device according to claim 3, characterized in that: Four lifting assemblies are installed on the upper side of the frame, which are grouped in pairs and symmetrically distributed left and right. The lifting assembly includes a connecting rod rotatably connected to the frame, the connecting rod is arranged between the frame and the material bucket, the four connecting rods are arranged in the same direction, and the lower ends are rotatably connected to the material bucket, a worm wheel transmission-connected to the upper end of the connecting rod is rotatably installed on the outer side of the frame, a worm screw meshing with the worm wheel is rotatably installed on the upper side of the frame, and forward and backward rotating rods are rotatably installed on the left and right sides of the frame, and the worm screws on the left and right sides are transmission-connected to the rotating rod on the same side, a third sprocket is concentrically fixed to the front side of the two rotating rods, a third chain is connected between the two third sprockets, and a crank handle concentrically fixed to the front side of one of the third sprockets is rotatably installed.

5. A road construction material transport device according to claim 4, characterized in that: The side wall on the rear side of the material hopper is an inclined plate sloping downward from back to front. The left and right side walls of the material hopper are right-angled trapezoids that are wide at the top and narrow at the bottom with the inclined surface facing backward. A vertical horizontal plate is fixed on the lower side of the inclined plate, and the two fixing components on the rear side are installed on the upper side of the horizontal plate.

6. A road construction material transport device according to claim 5, characterized in that: A protective shell capable of covering the worm wheel, the worm, the third sprocket and the third chain is provided on the outer side of the frame, and a rubber telescopic protective sleeve is covered on the outer side of the slideway.

7. A road construction material transport device according to claim 6, characterized in that: A supporting spring is fixed on one side of the control end of the contact switch close to the top sheet.

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