CN219765990U

CN219765990U - Material conveyer for highway engineering

Info

Publication number: CN219765990U
Application number: CN202321250812.2U
Authority: CN
Inventors: 陈志超; 孟子元; 李冬梅
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-05-23
Filing date: 2023-05-23
Publication date: 2023-09-29
Anticipated expiration: 2033-05-23

Abstract

The utility model relates to the technical field of highway engineering material transportation and discloses a highway engineering material transportation device which comprises a base, wherein the top end of the base is fixedly connected with a box body, the front side and the rear side of the interior of the box body are fixedly connected with fixing columns, the upper side of the right part of the box body is fixedly connected with a first sieve plate, the middle side of the right part of the box body is fixedly connected with a second sieve plate, and the lower side of the right part of the box body is fixedly connected with a third sieve plate. According to the utility model, automatic screening of sand and stone and other materials in the transportation process is realized, the time for subsequent manual screening is saved, the manual labor is reduced, the practicability of the device is improved, the use is more convenient, the project progress is improved, the rapid blanking of the screened sand and stone after reaching the transportation point is realized, the trouble of manual blanking is saved, the transportation time is shortened, the project progress is further improved, and the practicability of the device is further improved.

Description

Material conveyer for highway engineering

Technical Field

The utility model relates to the technical field of highway engineering material transportation, in particular to a material transportation device for highway engineering.

Background

Highway engineering refers to work such as investigation, measurement, design, construction, maintenance, management, etc. of a highway structure, which includes: roadbeds, pavements, bridges, culverts, tunnels, drainage systems, safety protection facilities, greening and traffic monitoring facilities, houses, workshops and other service facilities used for construction, maintenance and monitoring, and highway engineering needs building materials in the construction process, and the building materials are various and are roughly divided into structural materials, decorative materials and certain special materials, wherein the structural materials comprise wood, bamboo, stone, cement, concrete, metal, tiles, ceramics, glass, engineering plastics, composite materials and the like; the decorative materials comprise various coatings, paint, plating layers, veneers, ceramic tiles with various colors, glass with special effects and the like; the special material is used for waterproof, dampproof, anticorrosion, fireproof, flame-retardant, sound-proof, heat-insulating, heat-preserving, sealing and the like.

The material conveyer among the prior art when transporting structural material, especially when material such as grit is transported, can't screen raw and other materials, and the practicality is lower, leads to after transporting to the destination, needs to spend a part of time to sieve material such as grit additionally, wastes time and energy, and manual labor is higher, consequently to above not enough, has proposed a material conveyer for highway engineering.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a material conveying device for highway engineering.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a highway engineering is with material conveyer, includes the base, the top fixedly connected with box of base, the equal fixedly connected with fixed column in both sides around the inside of box, the first sieve of right part upside fixedly connected with of box, the second sieve of side fixedly connected with in the right part of box, the right side downside fixedly connected with third sieve of box, two the outside upside of fixed column is provided with spring one, the bottom fixedly connected with fixed plate one of spring one, two the outside middle side of fixed column is provided with spring two, the bottom fixedly connected with fixed plate two of spring two the outside downside of fixed column is provided with spring three, the left side upper portion fixedly connected with fixing base two of box, the top fixedly connected with motor two of fixing base two, the drive end fixedly connected with bull stick of motor two, the outside fixedly connected with cam of bull stick, the bottom left side fixedly connected with connecting plate one of first, the bottom fixedly connected with of second bottom side fixedly connected with spring one, the two sets of four sets of side of support columns send the four sets of side fixedly connected with four sets of screw conveyer frame top end fixedly connected with four sets of screw conveyer frame groups of inside, the inside two sets of top end fixedly connected with four sets of screw conveyer barrels are placed inside the support frame.

As a further description of the above technical solution:

the novel automatic box comprises a box body, and is characterized in that a first fixing seat is fixedly connected to the left part of the rear side of the box body, a first motor is fixedly connected to the top end of the first fixing seat, a first rotating wheel is fixedly connected to the driving end of the first motor, a first threaded rod is fixedly connected to the middle part of the first rotating wheel, a plurality of second rotating wheels are sequentially arranged on the left part of the rear side of the box body from top to bottom, a second threaded rod is fixedly connected to the middle part of the second rotating wheel, belts are respectively arranged on the outer part of the first rotating wheel and the outer part of the second rotating wheel, a first guide rod is fixedly connected to the right side of the inner part of the box body, a plurality of second guide rods are sequentially fixedly connected to the inner part of the box body from top to bottom, a first push plate is connected to the outer threads of the first threaded rod, and a second push plate is connected to the outer threads of the second threaded rod.

As a further description of the above technical solution:

the middle parts of the first fixing plate and the second fixing plate are fixedly connected to the outside of the fixing column, the left sides of the first sieve plate, the second sieve plate and the third sieve plate are all in sliding connection to the outside of the fixing column, and the bottom end of the cam is arranged at the top end of the first sieve plate.

As a further description of the above technical solution:

the bottom of first sieve sets up the top at spring one, the bottom of second sieve sets up the top at spring two, the bottom of third sieve sets up the top at spring three.

As a further description of the above technical solution:

the outside of threaded rod one and guide bar one sets up the top at first sieve, a plurality of threaded rod two and guide bar set up respectively on the top of second sieve, the top of third sieve and the bottom of third sieve.

As a further description of the above technical solution:

the middle part sliding connection of movable plate is in the outside of support column.

As a further description of the above technical solution:

the front side of the box body is provided with a plurality of box doors from top to bottom in sequence.

The utility model has the following beneficial effects:

1. according to the utility model, through starting the motor II, under the cooperation of the rotating rod, the cam, the fixed column, the first sieve plate, the second sieve plate, the third sieve plate, the spring I, the spring II, the fixed plate I, the fixed plate II, the spring III, the connecting plate I and the connecting plate II, automatic screening of sand and stone and other materials in the transportation process is realized, the time for subsequent manual screening is saved, the manual labor force is reduced, the practicability of the device is improved, the use is more convenient, and the engineering progress is improved.

2. According to the utility model, through starting the motor I, under the cooperation of the rotating wheel I, the belt, the rotating wheel II, the threaded rod I, the guide rod I, the push plate I, the threaded rod II, the guide rod II and the push plate II, the screened sand and gravel can be rapidly discharged after reaching a transportation point, the trouble of manual discharging is saved, the transportation time is shortened, the engineering progress is further improved, and the practicability of the device is further improved.

Drawings

FIG. 1 is a perspective view of a highway engineering material transportation device according to the present utility model;

fig. 2 is a schematic diagram of the internal structure of a case of a highway engineering material transporting device according to the present utility model;

FIG. 3 is a schematic diagram of a feeding barrel of a highway engineering material transporting device according to the present utility model;

FIG. 4 is a schematic diagram of a pusher plate of a highway engineering material transporting device according to the present utility model;

fig. 5 is a schematic diagram of the internal structure of a feeding barrel of a highway engineering material conveying device according to the present utility model.

Legend description:

1. a base; 2. a case; 3. a first fixing seat; 4. a first motor; 5. a first rotating wheel; 6. a belt; 7. a second rotating wheel; 8. a first threaded rod; 9. a first guide rod; 10. a pushing plate I; 11. a second threaded rod; 12. fixing the column; 13. a first screen plate; 14. a second screen plate; 15. a third screen plate; 16. a pushing plate II; 17. a first spring; 18. a first fixing plate; 19. a second spring; 20. a second fixing plate; 21. a third spring; 22. a second guide rod; 23. a second fixing seat; 24. a second motor; 25. a rotating rod; 26. a cam; 27. a first connecting plate; 28. a second connecting plate; 29. placing a box; 30. a support column; 31. a spring IV; 32. a moving plate; 33. a feeding barrel; 34. a feed frame; 35. an auger; 36. a discharge port; 37. a box door.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, one embodiment provided by the present utility model is: the utility model provides a highway engineering uses material conveyer, the on-line screen storage device comprises a base 1, the top fixedly connected with box 2 of base 1, the inside of box 2 is used for storing the material such as grit of waiting to screen, both sides all fixedly connected with fixed column 12 around the inside of box 2, fixed column 12 is used for first sieve 13, second sieve 14 and third sieve 15 slip, the right part upside fixedly connected with first sieve 13 of box 2, the sieve mesh on first sieve 13 is the biggest than the sieve mesh on second sieve 14 and the third sieve 15, can guarantee that the grit of opening remains on first sieve 13, and the grit of size less falls into on second sieve 14, the right part middle side fixedly connected with second sieve 14 of box 2, the sieve mesh on second sieve 14 is bigger than the sieve mesh on the third sieve 15, can screen out the grit of medium size, and the grit of size is smaller falls into on the third sieve 15, the lower right side of the box body 2 is fixedly connected with a third sieve plate 15, the sieve mesh size on the third sieve plate 15 is the smallest, the sand with the smallest size can be screened out, the sand with the smallest size falls into the lowest inner end of the box body 2, the upper outer sides of the two fixing columns 12 are provided with a first spring 17, the first spring 17 compresses after being extruded by external force so as to generate rebound reaction force, the bottom end of the first spring 17 is fixedly connected with a first fixing plate 18, the first fixing plate 18 provides support for the first spring 17, so that the top end of the first spring 17 can compress after being pressed by the downward force, the middle outer sides of the two fixing columns 12 are provided with a second spring 19, the second spring 19 compresses after being extruded by the external force so as to generate rebound reaction force, the bottom end of the second spring 19 is fixedly connected with a second fixing plate 20, the second fixing plate 20 provides support for the second spring 19, the top end of the second spring 19 can be compressed after being pressed down, the third spring 21 is arranged at the lower side of the outer parts of the two fixing columns 12, the third spring 21 can be compressed after being subjected to external force, so that rebound reaction force is generated, the upper left part of the box body 2 is fixedly connected with the second fixing seat 23, the top end of the second fixing seat 23 is fixedly connected with the second motor 24, the second motor 24 can drive the vibrating mechanism, so that the first screen plate 13, the second screen plate 14 and the third screen plate 15 can vibrate up and down, sand and stone can be promoted to be screened and fall on the first screen plate 13, the second screen plate 14 and the third screen plate 15, screening efficiency and effect are improved, the driving end of the second motor 24 is fixedly connected with the rotating rod 25, the rotating rod 25 rotates under the driving of the second motor 24, the outer part of the rotating rod 25 is fixedly connected with the cam 26, the cam 26 rotates under the driving of the rotating rod 25, thereby intermittently extruding the first sieve plate 13, the first sieve plate 13 moves downwards along the fixed column 12, thereby extruding the first spring 17 and driving the first connecting plate 27 to extrude the second sieve plate 14, the second sieve plate 14 extrudes the second spring 19 and the second connecting plate 28 extrudes the third sieve plate 15, finally the third sieve plate 15 extrudes the third spring 21, thereby realizing the vibration of the first sieve plate 13, the second sieve plate 14 and the third sieve plate 15, further screening the sand, etc. which fall into the box body 2, saving the time of subsequent manual screening, reducing the manual labor, improving the practicability of the device, being more convenient and faster in use, improving the progress of engineering, the first connecting plate 27 is fixedly connected to the left side of the bottom end of the first sieve plate 13, the first connecting plate 27 extrudes the second sieve plate 14 under the driving of the first sieve plate 13, the second sieve 14 is made to move downwards, the connecting plate two 28 is fixedly connected to the left side of the bottom end of the second sieve 14, the connecting plate two 28 extrudes the third sieve 15 under the driving of the second sieve 14, the third sieve 15 extrudes the spring three 21, thereby generating continuous vibration, the efficiency and effect of screening materials such as sand and stone are accelerated, the box 29 is placed on the right side of the top end of the base 1, the materials which do not need to be screened are placed in the box 29, two groups of support columns 30 are fixedly connected to the front side and the rear side of the box 29, the four springs 31 are arranged outside the two groups of support columns 30, the four springs 31 are compressed under the effect of upper weight, after the upper weight is reduced, the springs rebound gradually, the moving plate 32 moves along the support columns 30 under the weight of the upper material, the four springs 31 are extruded, after the weight is reduced, the springs rebound drive the moving plate 32 to move upwards along the support columns 30, the materials are further driven to move upwards, the materials at the bottom are convenient to take out, the practicality of the device is improved, the two groups of material feeding speed is improved, the two groups of material feeding barrels 33 are connected to the bottom sides of the box 33 are fixedly connected to the inside the two groups of material feeding barrels 33, the two groups of material feeding barrels are convenient to be connected to the inside the auger 35, the material feeding speed is shortened, and the material feeding speed is easy to be fixed to be fed to the inside the material feeding barrels 35 is shortened, and the material feeding speed is easy to be transported.

The left part of the rear side of the box body 2 is fixedly connected with a first fixing seat 3, the top end of the first fixing seat 3 is fixedly connected with a first motor 4, the first motor 4 can drive a pushing mechanism, so that the convenience of separating and discharging of the device is improved, the driving end of the first motor 4 is fixedly connected with a first rotating wheel 5, the first rotating wheel 5 rotates under the driving of the first motor 4, the middle part of the first rotating wheel 5 is fixedly connected with a first threaded rod 8, the first threaded rod 8 rotates under the driving of the first rotating wheel 5, so as to drive a pushing plate to move, the pushing plate pushes sand and stone and other materials on the first sieve plate 13 out of the box body 2, the screened materials are accurately discharged, the left part of the rear side of the box body 2 is sequentially provided with a plurality of second rotating wheels 7 from top to bottom, when the second rotating wheels 7 rotate, the second threaded rod 11 can be driven to rotate, the middle parts of the plurality of second rotating wheels 7 are fixedly connected with a second threaded rod 11, and when the second threaded rod 11 rotates, the pushing plate II 16 can be driven to push out the materials such as the second sieve plate 14, the third sieve plate 15 and the sand and stone screened at the bottom of the box body 2 respectively, besides realizing accurate blanking, the trouble of manual blanking is effectively saved, the practicability of the device is improved, the belt 6 is arranged outside the first rotating wheel 5 and outside the second rotating wheel 7, the belt 6 runs under the driving of the first rotating wheel 5 so as to drive the second rotating wheel 7 to rotate, the guide rod I9 is fixedly connected to the right side inside the box body 2, the guide rod I9 can limit the moving direction of the pushing plate I10, so that the pushing plate I can keep linear movement during moving, the inclined angle of the first sieve plate 13 can be better attached, the materials can be better pushed out, the trouble of manual blanking is saved, the practicability of the device is improved, the guide rods II 22 are sequentially and fixedly connected to the inside of the box body 2 from top to bottom, the guide rod II 22 can limit the moving direction of the push plate II 16, so that the push plates II 16 are respectively aligned with the second sieve plate 14, the third sieve plate 15 and the bottom of the box body 2, thereby better pushing materials out of the box body 2, the push plate I10 is connected with the external screw thread of the first threaded rod 8, the push plate I10 only pushes materials on the first sieve plate 13, the bottom shape of the push plate I is attached to the inclined shape of the first sieve plate 13, the trouble of manual blanking is saved, the transportation time is shortened, the engineering progress is further improved, the practicability of the device is further improved, the push plate II 16 is connected with the external screw thread of the second threaded rod 11, the push plates II 16 respectively correspond to the bottoms of the second sieve plate 14, the third sieve plate 15 and the box body 2, the materials on the corresponding structures can be pushed out, the trouble of manual blanking is saved, the practicability of the device is further improved, the middle parts of the fixing plate I18 and the fixing plate II 20 are fixedly connected to the outside the fixing column 12, the bottom end of the first fixing plate 18 is arranged at the top end of the second sieve plate 14, so that the movement of the second sieve plate 14 is not hindered, the bottom end of the second fixing plate 20 is arranged at the top end of the third sieve plate 15, the movement of the third sieve plate 15 is not hindered, the left sides of the first sieve plate 13, the second sieve plate 14 and the third sieve plate 15 are all in sliding connection with the outside of the fixed column 12, so that the first sieve plate 13, the second sieve plate 14 and the third sieve plate 15 can move along the fixed column 12 under the pushing of external force, the bottom end of the cam 26 is arranged at the top end of the first sieve plate 13, the bottom end of the first sieve plate 13 is arranged at the top end of the first spring 17, the bottom end of the second sieve plate 14 is arranged at the top end of the second spring 19, the bottom end of the third sieve plate 15 is arranged at the top end of the third spring 21, the outer parts of the first threaded rod 8 and the first guide rod 9 are arranged at the top end of the first sieve plate 13, and the second threaded rod 11 and the second guide rod 22 are respectively arranged at the top end of the second sieve plate 14, the top of third sieve 15 and the bottom of third sieve 15, the middle part sliding connection of movable plate 32 is in the outside of support column 30, the top rear side fixedly connected with two sets of feed barrels 33 of base 1, the bottom of discharge gate 36 sets up the upper end at box 2, thereby can be convenient for the auger 35 material that carries directly fall into on the first sieve 13 on the box 2 is inside, a plurality of chamber doors 37 have been set gradually from last down to the front side of box 2, chamber door 37 steerable material that filters comes out from the inside of box 2, when not opening chamber door 37, push pedal one 10 and push pedal two 16 will be blocked, can't be with the material release.

Working principle: when transporting materials, firstly, the materials such as sand and stone needing to be screened later are put into the feeding frame 34, then the auger 35 is started, sand and stone enters the box body 2 from the discharge hole 36 and falls on the top end of the first sieve plate 13 under the transmission of the auger 35, meanwhile, the motor II 24 is started, the motor II 24 drives the rotating rod 25 to rotate, the rotating rod 25 drives the cam 26 to rotate, the cam 26 can intermittently extrude and impact the left end of the first sieve plate 13 when rotating, at the moment, the left side of the first sieve plate 13 descends, meanwhile, the connecting plate I27 is driven to extrude the left side of the second sieve plate 14 and extrude the spring I17 to compress the first sieve plate, along with the downward extrusion of the connecting plate I, the second sieve plate 14 is simultaneously moved downwards and drives the connecting plate II 28 to extrude the left side of the third sieve plate 15, meanwhile, the spring II 19 is compressed under the extrusion of the second sieve plate 14, the third screen plate 15 can squeeze the spring III 21 when being squeezed, so that the spring III 21 is compressed, along with intermittent squeezing of the cam 26, when the cam 26 is in no contact with the first screen plate 13, the spring I17, the spring II 19 and the spring III 21 rebound simultaneously, the first screen plate 13, the second screen plate 14 and the third screen plate 15 are driven to move upwards, thereby realizing the purpose of vibration, sand and stones smaller than the screen holes on the first screen plate 13 fall onto the second screen plate 14, simultaneously sand and stones smaller than the screen holes on the second screen plate 14 fall onto the third screen plate 15, and sand and stones smaller than the screen holes on the third screen plate 15 fall onto the bottommost part of the box body 2, thereby achieving the purpose of screening, during transportation, the cam 26 continuously rotates until reaching a destination position, stopping running, enabling the screening of sand and stones to be more sufficient, along with the sand and stones entering the interior of the box body 2, the rest materials which are transported and do not need to be screened can be placed in the placement frame at the same time, along with the increase of the weight of the materials entering the placement frame, the moving plate 32 can squeeze the spring III 21, so that the spring IV 31 is compressed, after the materials reach a destination, the weight on the moving plate 32 is reduced, the weight born by the spring IV 31 is weakened, the moving plate 32 is gradually rebounded to drive the moving plate 32 to move upwards along the support column 30, the distance between the materials at the bottom and the placement box 29 is reduced, thereby being convenient for workers to take the materials out of the placement frame, meanwhile, when the screened sand is fed, the motor I4 can be started, the motor I4 drives the runner I5 to rotate, the runner I5 is driven to rotate, the belt 6 is driven to operate when the belt 6 is operated, the runner II 7 can be driven to rotate, the runner I5 drives the threaded rod I8 to rotate, the second rotating wheel 7 drives the second threaded rod 11 to rotate, the first threaded rod 8 can drive the first push plate 10 to move along the first guide rod 9 when rotating, at this time, the corresponding box door 37 of the first screen plate 13 is opened, so that sand and stone on the first screen plate 13 are pushed out of the box body 2, and as the rest of the box doors 37 are not opened, even if the second threaded rod 11 rotates, the second push plate 16 cannot push out corresponding sand and stone, the second push plate 16 can only push out another unloading place when the conveying device moves, the box door 37 corresponding to the second screen plate 14 is opened, the second threaded rod 11 can drive the second push plate 16 to move along the second guide rod 22, sand and stone on the second screen plate 14 comes out of the box body 2, and the processes are repeated in sequence, so that sand and stone on the third screen plate 15 and sand and stone on the bottom of the box body 2 can come out of the box body 2 respectively.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides a highway engineering is with material conveyer, includes base (1), its characterized in that: the utility model discloses a rotary rod type rotary machine, which is characterized in that a box body (2) is fixedly connected with the top of a base (1), fixed columns (12) are fixedly connected with the front side and the rear side of the interior of the box body (2), a first sieve plate (13) is fixedly connected with the upper side of the right part of the box body (2), a second sieve plate (14) is fixedly connected with the middle side of the right part of the box body (2), a third sieve plate (15) is fixedly connected with the lower side of the right part of the box body (2), a first spring (17) is arranged on the upper side of the exterior of the fixed columns (12), a first fixed plate (18) is fixedly connected with the bottom end of the first spring (17), a second spring (19) is arranged on the middle side of the exterior of the fixed columns (12), a second fixed plate (20) is fixedly connected with the bottom end of the second spring (19), a second fixed seat (23) is fixedly connected with the lower side of the exterior of the fixed columns (12), a second motor (24) is fixedly connected with the top end of the second fixed seat (23), a second rotary rod (24) is fixedly connected with a second connecting plate (25) and a second connecting plate (25) is fixedly connected with the bottom end of the second sieve plate (25), the utility model discloses a feeding box for a plastic material conveying machine, including base (1), two sets of charging basket (33) are connected with each other in the top right side fixedly connected with, place case (29), place both sides all fixedly connected with two sets of support column (30) around the inside of case (29), two sets of the outside of support column (30) is provided with four springs (31), the top fixedly connected with movable plate (32) of four springs (31), two sets of charging basket (33) of top rear side fixedly connected with of base (1), two sets of charging basket (33) are connected with feeding frame (34) in rear side bottom, two sets of charging basket (33) are provided with auger (35) in the inside of charging basket (33), two sets of charging basket (33) are connected with discharge gate (36) in front side top.

2. A highway engineering material transportation apparatus according to claim 1 wherein: the novel automatic feeding device is characterized in that a fixing seat I (3) is fixedly connected to the left part of the rear side of the box body (2), a motor I (4) is fixedly connected to the top end of the fixing seat I (3), a rotating wheel I (5) is fixedly connected to the driving end of the motor I (4), a threaded rod I (8) is fixedly connected to the middle part of the rotating wheel I (5), a plurality of rotating wheels II (7) are sequentially arranged on the left part of the rear side of the box body (2) from top to bottom, a plurality of threaded rods II (11) are fixedly connected to the middle part of the rotating wheels II (7), belts (6) are respectively arranged on the outer part of the rotating wheel I (5) and the outer part of the rotating wheels II (7), a guide rod I (9) is fixedly connected to the right side of the inner part of the box body (2), a plurality of guide rods II (22) are sequentially fixedly connected to the inner part of the box body (2) from top to bottom, a push plate I (10) is connected to the outer thread of the threaded rod I (8), and a push plate II (16) is connected to the outer thread of the threaded rod II (11).

3. A highway engineering material transportation apparatus according to claim 1 wherein: the middle parts of the first fixing plate (18) and the second fixing plate (20) are fixedly connected to the outer part of the fixing column (12), the left sides of the first sieve plate (13), the second sieve plate (14) and the third sieve plate (15) are all in sliding connection to the outer part of the fixing column (12), and the bottom end of the cam (26) is arranged at the top end of the first sieve plate (13).

4. A highway engineering material transportation apparatus according to claim 1 wherein: the bottom of first sieve (13) sets up the top at spring one (17), the bottom of second sieve (14) sets up the top at spring two (19), the bottom of third sieve (15) sets up the top at spring three (21).

5. A highway engineering material transportation apparatus according to claim 2 wherein: the outside of threaded rod one (8) and guide bar one (9) sets up the top at first sieve (13), and a plurality of threaded rod two (11) and guide bar two (22) set up respectively in the top of second sieve (14), the top of third sieve (15) and the bottom of third sieve (15).

6. A highway engineering material transportation apparatus according to claim 1 wherein: the middle part of the moving plate (32) is connected with the outer part of the supporting column (30) in a sliding way.

7. A highway engineering material transportation apparatus according to claim 1 wherein: the front side of the box body (2) is provided with a plurality of box doors (37) from top to bottom in sequence.