Stone screening device for highway construction

Abstract

The invention relates to the technical field of highway construction, and discloses a stone screening device for highway construction, which comprises a screening box, the screening box further comprises a screening device, the screening device comprises a screening structure and a dismounting structure, material ports are formed in two sides of the screening box, and a material screening inclined plate is slidably connected to the inner wall of the screening box. The supporting column is fixedly connected to the lower portion of the material screening inclined plate, the clamping base is clamped to the outer side of the supporting column, water in the square pipe intermittently flows into the folding air bag in the reciprocating lifting process of the lifting plate, the folding air bag is twisted together like twisting a towel originally, and after the water rushes into the folding air bag, the folding air bag instantly expands and unfolds to drive the torsion spring to twist; when the folding air bag is filled with water and then flows into the atomizing spray head, the folding air bag loses the support of the water and turns back to the folding state again to drive the torsional spring to twist reversely, and the torsional spring twists in a reciprocating manner to drive the atomizing spray head to swing to throw out the water, so that the dust falling area is increased, the dust falling effect is further improved, and the health of workers is protected.

Description

Technical Field

[0001] The invention relates to the technical field of highway construction, in particular to a gravel screening device for highway construction. Background Art

[0002] At present, gravel is used as the paving base in the process of highway paving, and gravel of different sizes needs to be screened. However, the existing devices can easily cause gravel to get stuck in the sieve holes during screening, and they cannot be cleaned in time, resulting in reduced screening efficiency.

[0003] The invention patent with patent number CN202120159348.0 discloses a gravel screening device for highway construction. The residue after screening in the invention will fall on the upper side of the guide inclined plate. The buffer device assembly can make the guide inclined plate vibrate, so that the residue on the upper side of the guide inclined plate can be more easily dropped to the outside of the device. The traditional rolling screening barrel is connected to the rolling screening barrel by a rod arranged in the middle and other connecting parts. In this way, the rolling screening barrel has a connecting part that interferes with the normal rotation of the stone. There is no connecting part in the middle of the rolling screening barrel of the present device. Although the patent solves the above-mentioned problems, there is still the problem that the screen plate cannot be cleaned comprehensively and conveniently, which causes the stone to be easily stuck in the screen hole and reduces the screening efficiency. Therefore, the design can avoid the stone being stuck in the screen hole and affecting the screening efficiency. At the same time, the screen inclined plate is often cleaned to avoid the deposition of broken slag and lime on the surface of the screen inclined plate, causing damage to the screen inclined plate, thereby improving the service life. A gravel screening device for highway construction is very necessary. Summary of the invention

[0004] The object of the present invention is to provide a gravel screening device for highway construction to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a gravel screening device for highway construction, comprising a screening box, the screening box also comprising a screening device, the screening device comprising a screening structure and a disassembly structure, the screening structure comprising a material port, a screening inclined plate, and a pillar, the material port is opened on both sides of the screening box, the screening inclined plate is slidably connected to the inner wall of the screening box, the pillar is fixedly connected to the bottom of the screening inclined plate, the disassembly structure comprises a holder, a disassembly groove, a slide rail, and a sliding plate, the holder is clamped on the outside of the pillar, the disassembly groove is opened on the front side of the screening box, the slide rail is fixedly connected to the two ends of the front side of the screening box, the sliding plate is slidably connected to the inside of the slide rail, the upper surface of the screening inclined plate is provided with sieve holes, the screening inclined plates are mirror-symmetrically distributed along the transverse central axis of the screening box and are provided with two, and are located at the bottom The sieve holes on the screen ramp are smaller than the sieve holes on the screen ramp above. Pour the gravel into the screening box from the material port, and the gravel falls onto the screen ramp. The gravel is screened layer by layer by the screen ramp to separate the gravel of different sizes, and then slides out of the material port through the inclined surface of the screen ramp to be collected for subsequent use. The sliding plate is lifted upward, and the sliding plate is forced to slide up in the slide rail. At this time, the disassembly slot leaks out, and the staff reaches out to lift the screen ramp, and the screen ramp drives the pillar to detach from the seat, so that the screen ramp is separated from the screening box. At this time, the screen ramp is taken out of the disassembly slot, and the sieve holes on the screen ramp can be cleaned to avoid the gravel getting stuck in the sieve holes and affecting the screening efficiency. At the same time, the screen ramp should be cleaned frequently to avoid the accumulation of broken slag and lime on the surface of the screen ramp, which will damage the screen ramp and increase its service life.

[0006] According to the above technical solution, a dust suppression device is arranged at the rear side of the material port, and the dust suppression device includes a water sprinkling structure and a swinging structure. The water sprinkling structure includes a water tank, a water pipe, and an atomizing nozzle. The water tank is fixedly connected to the rear side of the screening box, the water pipe is fixedly connected to both sides of the water tank, and the atomizing nozzle is arranged at the front side of the water pipe. The swinging structure includes an inclined water pipe, a first water trough, a first impeller, a screw, a lifting plate, a square tube, a support sleeve, a torsion spring, a folded airbag, and a two-way return water pipe. The inclined water pipe is fixedly connected below the water pipe, the first water trough is fixedly connected to the front end of the inclined water pipe, and the first impeller The lifting plate is slidably connected to the surface of the lifting plate, the square tube is fixedly connected to the inside of the water pipe, the support sleeve is fixedly connected to the front end of the water pipe surface, the two torsion springs are respectively fixedly connected to the front and rear ends of the inner wall of the support sleeve, the folding airbag is fixedly connected to the inside of the torsion spring, the two-way water return pipe is fixedly connected to the bottom of the first water tank, a water pump is arranged inside the water tank, the atomizing nozzle is fixedly connected to the front side of the torsion spring, the atomizing nozzle rotates and passes through the front end of the support sleeve, and the first impeller rotates and passes through the top of the first water tank The lifting plate slides through the bottom of the square tube, the lifting plate is slidably connected to the inner wall of the square tube, the two-way water return pipe is fixedly connected to both sides of the water tank, a valve is arranged inside the two-way water return pipe, the water pump is started, the water in the water tank is input into the atomizing nozzle through the water delivery pipe, and the water is sprayed around the material port through the atomizing nozzle, so as to avoid too much dust being raised when the stone is fed and discharged, which affects the environment. After the dust is degraded, it is prevented from inhaling dust when the staff is working, which ensures the health of the staff. Part of the water in the water delivery pipe flows into the first water tank through the inclined water pipe, and part of it flows into the square tube. The water flow flowing into the first water tank flushes Hitting the first impeller causes it to rotate, and the rotation of the first impeller drives the lead screw to rotate, which drives the lifting plate to lift back and forth. During the reciprocating lifting of the lifting plate, the water in the square tube intermittently flows into the folding airbag. The folding airbag was originally twisted together like a towel. When water rushes into the folding airbag, the folding airbag instantly expands and unfolds, driving the torsion spring to twist. When the water fills the folding airbag, it flows into the atomizing nozzle. The folding airbag loses the support of the water and returns to a folded state, driving the torsion spring to twist in the opposite direction. The reciprocating twisting of the torsion spring drives the atomizing nozzle to swing and throw out the water, thereby increasing the dust reduction area, further improving the dust reduction effect, and protecting the health of the staff.

[0007] According to the above technical solution, a shaking device is provided below the two-way water return pipe, and the shaking device includes a shaking structure and a lifting structure, and the shaking structure includes a support plate, a spring, and a second water trough, and the support plate is fixedly connected to the inner walls on both sides of the screening box, and the spring is fixedly connected above the support plate, and the second water trough is fixedly connected below the two-way water return pipe, and the lifting structure includes a second impeller, a rotating shaft, a cam, and a semicircular sliding seat, and the second impeller is hingedly connected to the inner side of the second water trough, and the rotating shaft is fixedly connected to one end of the second impeller, and the cam is fixedly connected to the surface of the rotating shaft, and the semicircular sliding seat is fixedly connected below the screen material inclined plate, and the spring is fixedly connected to the bottom end of the holder, and the rotating shaft rotates through the inside of the second water trough, and the cam It is slidably connected to the arc surface of the semicircular sliding seat. After the stone falls on the screen inclined plate, the force of its fall drives the screen inclined plate to press down, so that the screen inclined plate squeezes the spring on the support plate, and the spring rebounds the screen inclined plate, thereby causing the stone on the screen inclined plate to shake. After the stone shakes, it is easier to fall from the sieve hole, thereby speeding up the screening efficiency. When the valve in the two-way return pipe is closed, the water will flow back to the water tank, and when the valve is opened, the water will flow into the second water tank. After entering the second water tank, the water impacts the second impeller, causing the second impeller to rotate, and the second impeller drives the rotating shaft to rotate, and the rotating shaft drives the cam to rotate. After the raised end of the cam contacts the semicircular sliding seat, the semicircular sliding seat is lifted up, and the semicircular sliding seat then presses the screen inclined plate, thereby increasing the vibration force of the screen inclined plate, making stone screening easier and further improving the screening efficiency.

[0008] According to the above technical scheme, a supporting device is provided on the outside of the supporting plate, and the supporting device includes a supporting structure and an adjusting structure, and the supporting structure includes a supporting frame, a triangular supporting seat, and a fixed foot pad, and the supporting frame is fixedly connected to the outside of the screening box, and the triangular supporting seat is hingedly connected to the outside of the supporting frame, and the fixed foot pad is fixedly connected to the bottom end of the supporting frame, and the adjusting structure includes a sliding frame, a clamping slider, a movable foot pad, and a threaded rotating rod, and the sliding frame is fixedly connected to the bottom of the triangular supporting seat, and the clamping slider is slidably connected to the inner side of the sliding frame, and the movable foot pad is fixedly connected to the bottom end of the clamping slider, and the threaded rotating rod is hingedly connected to the inner side, and the threaded rotating rod rotates through one end of the sliding frame, and the threaded rotating rod is clamped inside the slider Side threaded connection, the screening box as a whole is easily tipped over when affected by external factors such as object collision, causing damage to the device and spillage of stones, resulting in brokerage losses. When the screening box is unbalanced, it should be supported by the support frame and the fixed foot pad so that it will not tip over quickly, and the triangular support seat makes the four corners of the support frame at the bottom to form a triangular stable structure. Therefore, when the support frame is affected by the screening box, it will be resisted by the triangular support seat to prevent tipping, stabilize the device and avoid losses caused by the tipping of the screening box. The staff turns the threaded rotating rod, and the threaded rotating rod drives the card-connecting slider to slide in the sliding frame, thereby moving the position of the card-connecting slider and the moving foot pad, so that the support area is adjusted. When the support area is large, the device is more stable, further preventing losses from tipping over.

[0009] Compared with the prior art, the beneficial effects achieved by the present invention are: The present invention is provided with a holder, a disassembly groove, a slide rail and a sliding plate. The sliding plate is lifted upward, and the sliding plate is forced to slide upward in the slide rail. At this time, the disassembly groove leaks out, and the staff stretches out their hands to lift the screening inclined plate, and the screening inclined plate drives the pillar to separate from the holder, so that the screening inclined plate is separated from the screening box. At this time, the screening inclined plate is taken out from the disassembly groove, and the sieve holes on the screening inclined plate can be cleaned to avoid stones being stuck in the sieve holes and affecting the screening efficiency. At the same time, the screening inclined plate is cleaned frequently to avoid the accumulation of broken slag and lime on the surface of the screening inclined plate to damage the screening inclined plate, thereby improving the service life. The present invention is provided with a lifting plate, a square tube, a supporting sleeve, a torsion spring, and a folding airbag. The lifting plate is lifted and lowered reciprocatingly so that the water in the square tube intermittently flows into the folding airbag. The folding airbag is originally twisted together like a towel. When water rushes into the folding airbag, the folding airbag instantly expands and unfolds, driving the torsion spring to twist. When the water fills the folding airbag, it flows into the atomizing nozzle. The folding airbag loses the support of the water and returns to the folded state, driving the torsion spring to twist in the opposite direction. The torsion spring twists reciprocatingly, thereby driving the atomizing nozzle to swing and throw out the water, thereby increasing the dust reduction area, further improving the dust reduction effect, and protecting the health of the workers. The present invention is provided with a second impeller, a rotating shaft, a cam and a semicircular sliding seat. After water enters the second water tank, it impacts the second impeller, causing the second impeller to rotate, and the second impeller drives the rotating shaft to rotate, and the rotating shaft drives the cam to rotate. After the cam protrusion end contacts the semicircular sliding seat, the semicircular sliding seat is lifted up, and the semicircular sliding seat then moves the screening material inclined plate, so that the vibration force of the screening material inclined plate is increased, making stone screening easier, and further improving the screening efficiency. The present invention is provided with a sliding frame, a clamping slider, a movable foot pad and a threaded rotating rod. When the support frame is affected by the screening box, it will be resisted by the triangular supporting seat to prevent tipping over, thereby stabilizing the device and avoiding losses caused by the tipping over of the screening box. A staff member rotates the threaded rotating rod, and the threaded rotating rod drives the clamping slider to slide in the sliding frame, thereby moving the positions of the clamping slider and the movable foot pad, so that the supporting area can be adjusted. When the supporting area is large, the device is more stable and further prevents losses caused by tipping over. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0011] In the attached picture: Figure 1 It is a schematic diagram of the overall structure of the three-dimensional plane of the right side of the present invention; Figure 2It is a schematic diagram of the three-dimensional structure of the left positive triaxial section of the present invention; Figure 3 It is a schematic diagram of the front side stereoscopic structure of the screening device of the present invention; Figure 4 The present invention Figure 3 A is a schematic diagram of the enlarged structure of the middle part; Figure 5 It is a schematic diagram of the rear side cross-sectional three-dimensional structure of the dust suppression device of the present invention; Figure 6 The present invention Figure 5 Schematic diagram of the enlarged structure of B; Figure 7 It is a schematic diagram of the front side cross-sectional three-dimensional structure of the shaking device of the present invention; Figure 8 The present invention Figure 7 Schematic diagram of the enlarged structure of C in the middle; Fig. 9 It is a schematic diagram of the three-dimensional split structure of the right positive triaxial surface of the support device of the present invention; Fig.10 The present invention Fig. 9 Schematic diagram of the enlarged structure of D in the middle; In the figure: 1, screening box; 2, screening device; 21, material inlet; 22, screening material inclined plate; 23, pillar; 24, holder; 25, disassembly slot; 26, slide rail; 27, sliding plate; 3, dust suppression device; 31, water tank; 32, water pipe; 33, atomizing nozzle; 34, inclined water pipe; 35, first water tank; 36, first impeller; 37, lead screw; 38, lifting plate; 39, square tube; 310, support sleeve; 3 11. Torsion spring; 312. Folding airbag; 313. Two-way water return pipe; 4. Shaking device; 41. Support plate; 42. Spring; 43. Second water tank; 44. Second impeller; 45. Rotating shaft; 46. Cam; 47. Semicircular sliding seat; 5. Support device; 51. Support frame; 52. Triangular supporting seat; 53. Fixed foot pad; 54. Sliding frame; 55. Snap-on slider; 56. Moving foot pad; 57. Threaded rotating rod. DETAILED DESCRIPTION

[0012] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0013] See also Figure 1-4, one embodiment of the present invention is: a stone screening device for highway construction, comprising a screening box 1, the screening box 1 also comprises a screening device 2, the screening device 2 comprises a screening structure and a disassembly structure, the screening structure comprises a material port 21, a screening material inclined plate 22, and a support 23, the material port 21 is opened at both sides of the screening box 1, the screening material inclined plate 22 is slidably connected to the inner wall of the screening box 1, and the support 23 is fixedly connected to the bottom of the screening material inclined plate 22, and the stone is poured into the screening box 1 from the material port 21, and the stone falls on the screening material inclined plate 22, and is screened layer by layer by the screening material inclined plate 22 to separate stones of different sizes, and then slides out of the material port 21 through the inclined surface of the screening material inclined plate 22 to be collected, which is convenient for subsequent use, and the disassembly structure comprises a holder 24, a disassembly slot 25, a slide rail 26, and a sliding plate 27, the holder 24 is clamped on the outside of the support 23, the disassembly slot 25 is opened on the front side of the screening box 1, the slide rail 26 is fixedly connected to the two ends of the front side of the screening box 1, and the sliding plate 27 is provided. The plate 27 is slidably connected to the inner side of the slide rail 26. The upper surface of the screening material inclined plate 22 is provided with sieve holes. The screening material inclined plate 22 is mirror-symmetrically distributed along the transverse central axis of the screening box 1 and is provided with two, and the sieve holes provided on the screening material inclined plate 22 located at the bottom are smaller than the sieve holes provided on the screening material inclined plate 22 located at the top. The sliding plate 27 is lifted upward, and the sliding plate 27 is forced to slide up in the slide rail 26. At this time, the disassembly groove 25 leaks out, and the staff stretches out their hands to lift the screening material inclined plate 22, and the screening material inclined plate 22 drives the support 23 to disengage from the holder 24, so that the screening material inclined plate 22 is separated from the screening box 1. At this time, the screening material inclined plate 22 is taken out from the disassembly groove 25, and the sieve holes on the screening material inclined plate 22 can be cleaned to avoid stones being stuck in the sieve holes and affecting the screening efficiency. At the same time, the screening material inclined plate 22 is cleaned frequently to avoid the deposition of broken slag and lime on the surface of the screening material inclined plate 22, which damages the screening material inclined plate 22, thereby improving the service life.

[0014] Working principle: Pour the stones into the screening box 1 from the material port 21, and the stones fall onto the screening inclined plate 22, and are screened layer by layer through the screening inclined plate 22 to separate the stones of different sizes, and then slide out of the material port 21 through the inclined surface of the screening inclined plate 22 to be collected for subsequent use, and lift the sliding plate 27 upwards, and the sliding plate 27 slides up in the slide rail 26 under force, and at this time the disassembly slot 25 leaks out, and the staff reaches out to lift the screening inclined plate 22, and the screening inclined plate 22 drives the support 23 to disengage from the holder 24, so that the screening inclined plate 22 is separated from the screening box 1, and at this time the screening inclined plate 22 is taken out from the disassembly slot 25, and the sieve holes on the screening inclined plate 22 can be cleaned to avoid the stones being stuck in the sieve holes and affecting the screening efficiency, and at the same time, the screening inclined plate 22 is cleaned frequently to avoid the broken slag and lime being deposited on the surface of the screening inclined plate 22, causing damage to the screening inclined plate 22, thereby improving the service life.

[0015] See also Figure 5-6On the basis of the above embodiment, another embodiment of the present invention includes a dust suppression device 3, which includes a water sprinkling structure and a swinging structure. The water sprinkling structure includes a water tank 31, a water pipe 32, and an atomizing nozzle 33. The water tank 31 is fixedly connected to the rear side of the screening box 1, and the water pipe 32 is fixedly connected to both sides of the water tank 31. The atomizing nozzle 33 is arranged on the front side of the water pipe 32. The water pump is started, and the water pump inputs the water in the water tank 31 into the atomizing nozzle 33 through the water pipe 32. The water is sprayed around the material port 21 through the atomizing nozzle 33 to avoid raising too much dust when the stone is fed and discharged, which affects the environment. After the dust is degraded, it prevents the staff from inhaling the dust during work, ensuring the health of the staff. The swinging structure includes an inclined water The inclined water pipe 34 is fixedly connected to the bottom of the water pipe 32, the first water tank 35 is fixedly connected to the front end of the inclined water pipe 34, the first impeller 36 is hingedly connected to the inside of the first water tank 35, the screw 37 is fixedly connected to the top of the first impeller 36, the lifting plate 38 is slidably connected to the surface of the screw 37, the square tube 39 is fixedly connected to the inside of the water pipe 32, the support sleeve 310 is fixedly connected to the front end of the surface of the water pipe 32, the two torsion springs 311 are respectively fixedly connected to the front and rear ends of the inner wall of the support sleeve 310, and the folded airbag 312 is fixedly connected to the inner wall of the support sleeve 310. The two-way water return pipe 313 is connected to the inner side of the torsion spring 311, and is fixedly connected to the lower side of the first water tank 35. A water pump is arranged inside the water tank 31. The atomizing nozzle 33 is fixedly connected to the front side of the torsion spring 311. The atomizing nozzle 33 rotates and passes through the front end of the supporting sleeve 310. The first impeller 36 rotates and passes through the top of the first water tank 35. The lifting plate 38 slides and passes through the bottom of the square tube 39. The lifting plate 38 is slidably connected to the inner wall of the square tube 39. The two-way water return pipe 313 is fixedly connected to both sides of the water tank 31. A valve is arranged inside the two-way water return pipe 313. A part of the water in the water delivery pipe 32 flows into the first water tank 35 through the inclined water pipe 34, and a part of the water flows into the square tube 39. The water flow flowing into the first water tank 35 impacts the first impeller 36 so that the first impeller The wheel 36 rotates, and the first impeller 36 rotates to drive the lead screw 37 to rotate, and the lead screw 37 drives the lifting plate 38 to lift and reciprocate. The reciprocating lifting process of the lifting plate 38 causes the water in the square tube 39 to intermittently flow into the folding air bag 312. The folding air bag 312 was originally twisted together like a towel. When water rushes into the folding air bag 312, the folding air bag 312 instantly expands and drives the torsion spring 311 to twist. When the water fills the folding air bag 312, it flows into the atomizing nozzle 33. The folding air bag 312 loses the support of the water and returns to the folded state, driving the torsion spring 311 to twist in the opposite direction. The torsion spring 311 twists back and forth, thereby driving the atomizing nozzle 33 to swing and throw out the water, thereby increasing the dust reduction area, further improving the dust reduction effect, and protecting the health of the staff.

[0016] Working principle: start the water pump, the water pump inputs the water in the water tank 31 into the atomizing nozzle 33 through the water pipe 32, and then sprays the water around the material port 21 through the atomizing nozzle 33 to avoid too much dust raised when the stone is fed and discharged, which affects the environment. After the dust is degraded, it prevents the staff from inhaling the dust during work, ensuring the health of the staff. Part of the water in the water pipe 32 flows into the first water tank 35 through the inclined water pipe 34, and part of it flows into the square pipe 39. The water flow flowing into the first water tank 35 impacts the first impeller 36 to rotate the first impeller 36, and the rotation of the first impeller 36 drives the screw 37 to rotate, and the screw 37 drives the lifting plate 38 reciprocates and rises and falls. During the reciprocating rise and fall of the lifting plate 38, the water in the square tube 39 intermittently flows into the folding airbag 312. The folding airbag 312 is originally twisted together like a towel. When water rushes into the folding airbag 312, the folding airbag 312 instantly expands and unfolds, driving the torsion spring 311 to twist. When the water fills the folding airbag 312, it flows into the atomizing nozzle 33. The folding airbag 312 loses the support of the water and returns to a folded state, driving the torsion spring 311 to twist in the opposite direction. The torsion spring 311 twists back and forth, thereby driving the atomizing nozzle 33 to swing and throw out the water, thereby increasing the dust reduction area, further improving the dust reduction effect, and protecting the health of the staff.

[0017] See also Figure 7-10On the basis of the above embodiment, another embodiment of the present invention includes a shaking device 4, which includes a shaking structure and a lifting structure. The shaking structure includes a support plate 41, a spring 42, and a second water trough 43. The support plate 41 is fixedly connected to the inner walls on both sides of the screening box 1, and the spring 42 is fixedly connected above the support plate 41. The second water trough 43 is fixedly connected below the two-way return pipe 313. After the stone falls on the screen material inclined plate 22, the falling force drives the screen material inclined plate 22 to press down, so that the screen material inclined plate 22 squeezes the spring 42 on the support plate 41. The spring 42 rebounds the screen material inclined plate 22, so that the stone on the screen material inclined plate 22 is shaken. After the stone is shaken, it is easier to fall from the sieve hole, thereby accelerating the screening efficiency. The lifting structure includes a second impeller 44, a rotating shaft 4 5. Cam 46 and semicircular sliding seat 47. The second impeller 44 is hingedly connected to the inner side of the second water tank 43. The rotating shaft 45 is fixedly connected to one end of the second impeller 44. The cam 46 is fixedly connected to the surface of the rotating shaft 45. The semicircular sliding seat 47 is fixedly connected to the bottom of the screen material inclined plate 22. The spring 42 is fixedly connected to the bottom end of the holder 24. The rotating shaft 45 rotates to penetrate the inside of the second water tank 43. The cam 46 is slidably connected to the arc surface of the semicircular sliding seat 47. When the valve in the two-way return pipe 313 is closed, water will flow back to the water tank 31. When the valve is opened, water will flow into the second water tank 43. After the water enters the second water tank 43, it impacts the second impeller 44, causing the second impeller 44 to rotate. The second impeller 44 drives the rotating shaft 45 to rotate. The rotating shaft 45 drives the cam 46 to rotate. The raised end of the cam 46 After contacting with the semicircular sliding seat 47, the semicircular sliding seat 47 is lifted up, and the semicircular sliding seat 47 then pushes the screening material inclined plate 22, so that the vibration force of the screening material inclined plate 22 is increased, making stone screening easier, and further improving the screening efficiency. A supporting device 5 is arranged on the outside of the support plate 41, and the supporting device 5 includes a supporting structure and an adjusting structure. The supporting structure includes a supporting frame 51, a triangular supporting seat 52, and a fixed foot pad 53. The supporting frame 51 is fixedly connected to the outside of the screening box 1, and the triangular supporting seat 52 is hingedly connected to the outside of the supporting frame 51. The fixed foot pad 53 is fixedly connected to the bottom of the supporting frame 51. When the screening box 1 as a whole is affected by external factors such as impact of objects, it is easy to tip over, causing damage to the device and stone spillage, resulting in brokerage losses. When the screening box 1 is unbalanced, it should be supported by the supporting frame 51 and The fixed foot pad 53 supports it so that it will not fall over quickly, and the triangular support seat 52 makes the four corners of the support frame 51 at the bottom to form a triangular stable structure. Therefore, when the support frame 51 is affected by the screening box 1, it will be resisted by the triangular support seat 52 to prevent it from falling over, making the device stable and avoiding the loss caused by the falling over of the screening box 1. The adjustment structure includes a sliding frame 54, a clamping slider 55, a movable foot pad 56, and a threaded rotating rod 57. The sliding frame 54 is fixedly connected to the bottom of the triangular support seat 52, the clamping slider 55 is slidably connected to the inner side of the sliding frame 54, the movable foot pad 56 is fixedly connected to the bottom end of the clamping slider 55, the threaded rotating rod 57 is hingedly connected to the inner side, the threaded rotating rod 57 rotates and passes through one end of the sliding frame 54, and the threaded rotating rod 57 is threadedly connected to the inner side of the clamping slider 55.The staff rotates the threaded rotating rod 57, and the threaded rotating rod 57 drives the clamping slider 55 to slide in the sliding frame 54, thereby moving the position of the clamping slider 55 and the moving foot pad 56, so that the support area can be adjusted. The larger the support area, the more stable the device is, and the loss caused by tipping is further prevented.

[0018] Working principle: after the stone falls on the screen inclined plate 22, the force of the stone falling drives the screen inclined plate 22 to press down, so that the screen inclined plate 22 squeezes the spring 42 on the support plate 41, and the spring 42 rebounds the screen inclined plate 22, so that the stone on the screen inclined plate 22 shakes, and the stone is more likely to fall from the screen hole after shaking, thereby accelerating the screening efficiency. The valve in the two-way return pipe 313 is closed, and the water will flow back to the water tank 31. The valve is opened to allow the water to flow into the second water tank 43. After the water enters the second water tank 43, it impacts the second impeller 44, so that the second impeller 44 rotates, and the second impeller 44 drives the rotating shaft 45 to rotate, and the rotating shaft 45 drives the cam 46 to rotate. After the raised end of the cam 46 contacts the semicircular sliding seat 47, the semicircular sliding seat 47 is lifted up, and the semicircular sliding seat 47 then presses the screen inclined plate 22, so that the vibration force of the screen inclined plate 22 is increased, making stone screening easier, and further improving the screening efficiency. When the screening box 1 as a whole is affected by external factors such as collision with objects, it is easy to tip over, causing damage to the device and spillage of stones, resulting in brokerage losses. When the screening box 1 is unbalanced, it should be supported by the support frame 51 and the fixed foot pad 53 so that it will not tip over quickly, and the triangular support seat 52 makes the four corners of the support frame 51 at the bottom to form a triangular stable structure. Therefore, when the support frame 51 is affected by the screening box 1, it will be resisted by the triangular support seat 52 to prevent tipping, stabilize the device, and avoid losses caused by the tipping of the screening box 1. The staff rotates the threaded rotating rod 57, and the threaded rotating rod 57 drives the clamping slider 55 to slide in the sliding frame 54, thereby moving the position of the clamping slider 55 and the moving foot pad 56, so that the support area is adjusted. When the support area is large, the device is more stable, further preventing losses caused by tipping.

[0019] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0020] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A gravel screening device for highway construction, comprising a screening box (1), characterized in that: Also included is a screening device (2), the screening device (2) comprising a screening structure and a disassembly structure; The screening structure comprises a material inlet (21), a screening material inclined plate (22), and a support column (23); the material inlet (21) is opened on both sides of the screening box (1); the screening material inclined plate (22) is slidably connected to the inner wall of the screening box (1); and the support column (23) is fixedly connected below the screening material inclined plate (22); The disassembly structure comprises a clamping seat (24), a disassembly groove (25), a slide rail (26), and a sliding plate (27); the clamping seat (24) is clamped on the outside of the pillar (23); the disassembly groove (25) is provided on the front side of the screening box (1); the slide rail (26) is fixedly connected to both ends of the front side of the screening box (1); and the sliding plate (27) is slidably connected to the inside of the slide rail (26).

2. A gravel screening device for highway construction according to claim 1, characterized in that: The upper surface of the screening material inclined plate (22) is provided with screening holes, and the screening material inclined plates (22) are mirror-symmetrically distributed along the transverse central axis of the screening box (1), and two screening material inclined plates (22) are provided, and the screening holes provided on the lower screening material inclined plate (22) are smaller than the screening holes provided on the upper screening material inclined plate (22).

3. A gravel screening device for highway construction according to claim 2, characterized in that: A dust suppression device (3) is arranged at the rear side of the material inlet (21), the dust suppression device (3) comprising a water sprinkling structure and a swinging structure, the water sprinkling structure comprising a water tank (31), a water delivery pipe (32), and an atomizing nozzle (33), the water tank (31) being fixedly connected to the rear side of the screening box (1), the water delivery pipe (32) being fixedly connected to both sides of the water tank (31), the atomizing nozzle (33) being arranged at the front side of the water delivery pipe (32), the swinging structure comprising an inclined water pipe (34), a first water tank (35), a first impeller (36), a lead screw (37), a lifting plate (38), a square tube (39), a support sleeve (310), a torsion spring (311), a folding air bag (312), and a two-way water return pipe (313), the inclined water pipe (34) being fixedly connected to the rear side of the screening box (1), the water delivery pipe (32) being fixedly connected to both sides of the water tank (31), the atomizing nozzle (33) being arranged at the front side of the water delivery pipe (32), The water pipe (32) is connected below the water pipe (32); the first water tank (35) is fixedly connected to the front end of the inclined water pipe (34); the first impeller (36) is hingedly connected to the inside of the first water tank (35); the lead screw (37) is fixedly connected above the first impeller (36); the lifting plate (38) is slidably connected to the surface of the lead screw (37); the square tube (39) is fixedly connected to the inside of the water pipe (32); the support sleeve (310) is fixedly connected to the front end of the surface of the water pipe (32); the two torsion springs (311) are respectively fixedly connected to the front and rear ends of the inner wall of the support sleeve (310); the folding airbag (312) is fixedly connected to the inside of the torsion spring (311); and the two-way water return pipe (313) is fixedly connected below the first water tank (35).

4. A gravel screening device for highway construction according to claim 3, characterized in that: A water pump is arranged inside the water tank (31); the atomizing nozzle (33) is fixedly connected to the front side of the torsion spring (311); the atomizing nozzle (33) rotates and passes through the front end of the support sleeve (310); the first impeller (36) rotates and passes through the top of the first water tank (35); the lifting plate (38) slides and passes through the bottom of the square tube (39); the lifting plate (38) is slidably connected to the inner wall of the square tube (39); the two-way water return pipe (313) is fixedly connected to both sides of the water tank (31); and a valve is arranged inside the two-way water return pipe (313).

5. A gravel screening device for highway construction according to claim 4, characterized in that: A shaking device (4) is provided below the two-way water return pipe (313). The shaking device (4) comprises a shaking structure and a lifting structure. The shaking structure comprises a support plate (41), a spring (42), and a second water trough (43). The support plate (41) is fixedly connected to the inner walls on both sides of the screening box (1). The spring (42) is fixedly connected above the support plate (41). The second water trough (43) is fixedly connected below the two-way water return pipe (313). The lifting structure comprises a second impeller (44), a rotating shaft (45), a cam (46), and a semicircular sliding seat (47). The second impeller (44) is hingedly connected to the inner side of the second water trough (43). The rotating shaft (45) is fixedly connected to one end of the second impeller (44). The cam (46) is fixedly connected to the surface of the rotating shaft (45). The semicircular sliding seat (47) is fixedly connected below the screening material inclined plate (22).

6. A gravel screening device for highway construction according to claim 5, characterized in that: The spring (42) is fixedly connected to the bottom end of the holder (24), the rotating shaft (45) rotates to penetrate the interior of the second water tank (43), and the cam (46) is slidably connected to the arc surface of the semicircular sliding seat (47).

7. A gravel screening device for highway construction according to claim 6, characterized in that: A supporting device (5) is arranged outside the supporting plate (41), and the supporting device (5) comprises a supporting structure and an adjusting structure. The supporting structure comprises a supporting frame (51), a triangular supporting seat (52), and a fixed foot pad (53). The supporting frame (51) is fixedly connected to the outside of the screening box (1), the triangular supporting seat (52) is hingedly connected to the outside of the supporting frame (51), and the fixed foot pad (53) is fixedly connected to the bottom end of the supporting frame (51). The adjusting structure comprises a sliding frame (54), a clamping slider (55), a movable foot pad (56), and a threaded rotating rod (57). The sliding frame (54) is fixedly connected to the bottom of the triangular supporting seat (52), the clamping slider (55) is slidably connected to the inside of the sliding frame (54), the movable foot pad (56) is fixedly connected to the bottom end of the clamping slider (55), and the threaded rotating rod (57) is hingedly connected to the inside.

8. A gravel screening device for highway construction according to claim 7, characterized in that: The threaded rotating rod (57) rotates and penetrates one end of the sliding frame (54), and the threaded rotating rod (57) is clamped and threadedly connected to the inner side of the sliding block (55).

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