Sand screening device for constructional engineering
By setting a phase-back slope mechanism and a stirring blade rotation mechanism in the sand screening device for construction projects, the problem of difficulty in isolating coarse materials and fine materials in the prior art is solved, and the efficiency of the sand screening process is improved.
Patent Information
- Application Number
- CN202421331300.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-12
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-06-12
AI Technical Summary
The existing sand screening technology is difficult to isolate the coarse and fine materials after screening, which may cause the screened sand and stone to mix again, and large pieces of sand and stone entering the sand screening mechanism may cause blockage, affecting work efficiency.
A sand screening device for construction projects is designed. A side-side slope mechanism is arranged at the bottom of the inner cavity of the machine. The agitating blade rotating mechanism between the driving wheels crushes the blocks of sand and soil to prevent blockage.
It effectively solves the problem of difficult isolation between coarse materials and fine materials, prevents blockage of sand screening mechanisms, and improves the effectiveness of sand screening process.
Smart Images
Figure CN222930932U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of sand screening in construction engineering, and particularly relates to a sand screening device for construction engineering. Background Art
[0002] Construction engineering refers to the planning, surveying, design, construction, completion and other technical work carried out for the new construction, renovation or expansion of buildings and ancillary structures, as well as the completed engineering entities and the installation projects of the supporting pipelines and equipment. It also refers to the construction projects of various houses and buildings. On construction sites, road construction and road maintenance projects, sand is one of the particularly important materials in construction engineering. Before sand is used, it needs to be screened to separate sand and stones into different grades, so that the sand used in the project is finer. At present, the screening method generally uses a sieve mesh. However, the existing sand screening technology often has difficulty in separately isolating the coarse and fine materials after screening, and even causes the screened sand and stones to be mixed again. When large pieces of sand and stones pour in, it may also cause the phenomenon of blockage of the sand screening mechanism, greatly affecting the normal work and engineering efficiency. For this reason, we propose a sand screening device for construction engineering. Content of the Utility Model
[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a sand screening device for construction engineering, which effectively solves the problems that the existing sand screening technology is difficult to separately isolate the coarse and fine materials after screening and may also cause the phenomenon of blockage of the sand screening mechanism.
[0004] To achieve the above object, the utility model provides the following technical solution: A sand screening device for construction engineering, wherein driving motors are fixedly installed on both left and right sides of the machine body, the output ends of the driving motors are respectively connected with driving wheels, the two driving wheels are located at the upper parts of the left and right sides of the inner cavity of the machine body, driven wheels are installed at the lower parts of the left and right sides of the inner cavity of the machine body, a belt is connected between the outer peripheries of the driving wheel and the driven wheel, convex columns are fixedly connected to the opposite side surfaces of the two driven wheels, a sliding sleeve is connected to the periphery of the convex column, two fixing rings are installed at the lower parts of the left and right sides of the inner cavity of the machine body, the four fixing rings are respectively located at the front and rear sides of the two driven wheels, sliding rods are slidably connected to the front and rear sides of the sliding sleeve body through the fixing rings, sleeves are sleeved at the ends of the sliding rods far away from the sliding sleeve, support blocks are connected to the opposite side surfaces of the left and right sleeves, convex blocks are connected to the opposite side edges of the tops of the two rear support blocks, and a sand screening plate is connected between the two convex blocks and the opposite side surfaces of the two front support blocks.
[0005] Preferably, two slope grooves are opened at the front and rear sides of the top of the machine body, and a sand inlet is opened at the bottom end of the slope groove.
[0006] Preferably, a first slope is provided on the front side of the bottom of the inner cavity of the machine body, a second slope is provided behind the first slope, a sand outlet is formed at the bottom of the rear side of the machine body, and the bottom end of the second slope is located in front of the sand outlet.
[0007] Preferably, a protective plate is provided on the rear side of the top of the inner cavity of the machine body.
[0008] Preferably, a connecting rod is fixedly connected between the lower ends of the two sliding sleeves. The lower part of the connecting rod is connected with an upper joint block. The rear side of the upper joint block is movably connected with three groups of hinges. The lower part of the upper joint block is movably connected with a lower joint block through the three groups of hinges.
[0009] Preferably, connecting shafts are connected to the opposite sides of the centers of the two driving wheels. The middle parts of the two connecting shafts are butted with a square shaft, and multiple groups of blades are equidistantly connected to the four edges of the square shaft.
[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows: By arranging the opposite slope mechanism at the bottom of the inner cavity of the machine body, the coarse and fine materials in the sandy soil flow out from the front side and the rear side respectively after the sand screening process, and the stirring blade rotating mechanism between the driving wheels can break up the lumpy sandy soil coming down from the sand inlet, prevent the blocking phenomenon, and improve the effectiveness of the sand screening process. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 is a schematic structural diagram of the present utility model;
[0012] Figure 2 is a front view of the present utility model;
[0013] Figure 3 is a schematic structural diagram of the sand outlet of the present utility model;
[0014] Figure 4 is an enlarged view of part A of the present utility model;
[0015] Figure 5 is a schematic structural diagram of the second slope of the present utility model.
[0016] In the figure: 1. Machine body; 2. Driving motor; 3. Sand inlet; 4. Sand screening plate; 5. Driving wheel; 6. Belt; 7. Driven wheel; 8. First slope; 9. Connecting shaft; 10. Square shaft; 11. Blade; 12. Sand outlet; 13. Protective plate; 14. Convex column; 15. Sliding sleeve; 16. Sliding rod; 17. Ferrule; 18. Support block; 19. Convex block; 20. Connecting rod; 21. Upper joint block; 22. Lower joint block; 23. Hinge; 24. Second slope; 25. Fixed ring. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0017] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0018] Please refer to Figures 1-5 , drive motors 2 are fixedly installed on both the left and right sides of the machine body 1. The output ends of the drive motors 2 are respectively connected with driving wheels 5. The two groups of driving wheels 5 are located at the upper parts of the left and right sides inside the machine body 1. Driven wheels 7 are installed at the lower parts of the left and right sides inside the machine body 1. A belt 6 is connected between the peripheries of the driving wheel 5 and the driven wheel 7. Convex columns 14 are fixedly connected to the opposite side surfaces of the two groups of driven wheels 7. A sliding sleeve 15 is connected to the periphery of the convex column 14. Two groups of fixing rings 25 are installed at the lower parts of the left and right sides inside the machine body 1. The four groups of fixing rings 25 are respectively located at the front and rear sides of the two groups of driven wheels 7. The front and rear sides of the sliding sleeve 15 body are respectively slidably connected with sliding rods 16 through the fixing rings 25. Sleeve hoops 17 are sleeved on the ends of the sliding rods 16 far away from the sliding sleeve 15. Support blocks 18 are connected to the opposite side surfaces of the four groups of sleeve hoops 17. Convex blocks 19 are connected to the edges of the opposite side surfaces of the top parts of the two rear support blocks 18. A sand screening plate 4 is connected between the opposite side surfaces of the two convex blocks 19 and the opposite side surfaces of the two front support blocks 18. Start the two drive motors 2 to run. The output end of the left drive motor 2 rotates counterclockwise, and the output end of the right drive motor 2 rotates clockwise. The running directions of the two drive motors 2 are opposite, and the rotation frequencies are synchronous, driving the driving wheels 5 on the left and right sides to rotate. Under the action of the belt 6, the driven wheels 7 rotate accordingly. The convex columns 14 on the surfaces of the driven wheels 7 perform circular reciprocating motions. The sliding sleeve 15 moves back and forth under the force of the circular motion of the convex column 14. When the convex column 14 rotates to the highest point or the lowest point, the sliding sleeve 15, the sliding rod 16, the sleeve hoop 17, the support block 18, the convex block 19, and the sand screening plate 4 move to the midpoint of the stroke accordingly. When the convex column 14 rotates to the frontmost 90 degrees, the sliding sleeve 15, the sliding rod 16, the sleeve hoop 17, the support block 18, the convex block 19, and the sand screening plate 4 move to the end of the front side of the stroke accordingly. When the convex column 14 rotates to the rearmost 90 degrees, the sliding sleeve 15, the sliding rod 16, the sleeve hoop 17, the support block 18, the convex block 19, and the sand screening plate 4 move to the end of the rear side of the stroke accordingly, thus achieving the effect of the front and back reciprocating displacement of the sand screening plate 4;
[0019] Please refer to Figure 1, on the front and rear sides of the top of the body 1, two groups of slope grooves are provided. The bottom end of the slope groove is provided with a sand inlet 3. On the front side of the bottom of the inner cavity of the body 1, a first slope 8 is provided. A second slope 24 is provided at the rear side of the first slope 8. An outlet 12 is provided at the bottom of the rear side of the body 1. The bottom end of the second slope 24 is located in front of the outlet 12. A protective plate 13 is provided at the rear side of the top of the inner cavity of the body 1. On the opposite sides of the centers of the two driving wheels 5, a connecting shaft 9 is connected. In the middle of the two connecting shafts 9, a square shaft 10 is butted. On the four edges of the square shaft 10, a plurality of groups of blades 11 are evenly connected at equal intervals. After the sandy soil is poured into the sand inlet 3, it is struck by the stirring blade 11 mechanism, and the blades 11 break up the lumpy sandy soil. The protective plate 13 is a protective measure to prevent stones and other sundries struck by the blades 11 from bouncing towards the second slope 24. The sandy soil falls into the sieve plate 4. Through the reciprocating displacement of the sieve plate 4 back and forth, it is shaken, filtered and separated. The fine sand directly passes through the through holes of the sieve plate 4 and filters down, falling onto the second slope 24 and sliding out of the outlet 12. The coarse sand falls from the front side notch of the sieve plate 4 onto the first slope 8 and slides out of the body 1. Among them, the left, right and rear edges of the sieve plate 4 are connected to the convex blocks 19, and the left and right front sides of the sieve plate 4 are connected to the two support blocks 18, so as to make the sieve plate 4 slightly inclined, so that the coarse sand can slide out of the sieve plate 4 smoothly;
[0020] Please refer to Figure 5 , between the lower ends of the two sliding sleeves 15, a connecting rod 20 is fixedly connected. The lower part of the connecting rod 20 is connected with an upper joint block 21. The lower part of the upper joint block 21 is movably connected with a lower joint block 22 through three hinge joints 23 at the rear side; the bottom of the front side of the lower joint block 22 is rounded. When the sliding sleeve 15, the sliding rod 16, the ferrule 17, the support block 18, the convex block 19 and the sieve plate 4 move forward, the lower joint block 22 collides with the second slope 24 and opens backward due to the action of the hinge joint 23. When the sliding sleeve 15, the sliding rod 16, the ferrule 17, the support block 18, the convex block 19 and the sieve plate 4 move backward, the lower joint block 22 closes with the upper joint block 21 due to the action of the hinge joint 23, and the rear side of the lower joint block 22 can scrape off the fine sand staying and accumulating on the second slope 24.
[0021] Working principle: When the new solution is implemented, two driving motors 2 are started to drive the rotation of the driving wheels 5 on the left and right sides of the inner cavity of the machine body 1. Driven by the belt 6, the driven wheel 7 rotates accordingly, and the surface convex columns 14 of the driven wheel 7 perform circular reciprocating motions. The sliding sleeve 15 connected to the periphery of the convex columns 14 moves under the force of the circular motion of the convex columns 14. When the convex columns 14 rotate to the highest or lowest points, the sliding sleeve 15, the sliding rod 16, the ferrule 17, the support block 18, the convex block 19, and the sand screening plate 4 move to the midpoint of the stroke accordingly. When the convex columns 14 rotate to the frontmost 90 degrees, the sliding sleeve 15, the sliding rod 16, the ferrule 17, the support block 18, the convex block 19, and the sand screening plate 4 move to the end of the front side of the stroke accordingly. When the convex columns 14 rotate to the rearmost 90 degrees, the sliding sleeve 15, the sliding rod 16, the ferrule 17, the support block 18, the convex block 19, and the sand screening plate 4 move to the end of the rear side of the stroke accordingly, thus achieving the effect of the reciprocating displacement of the sand screening plate 4 back and forth. After the sandy soil is poured into the sand inlet 3, it is struck by the stirring blade 11 mechanism, and the blade 11 breaks up the lumpy sandy soil. The protective plate 13 is a protective measure to prevent the soil blocks struck by the blade 11 from bouncing elsewhere. The sandy soil falls into the sand screening plate 4, and through the reciprocating displacement of the sand screening plate 4 back and forth, it is shaken, filtered, and separated. The fine sand directly filters down through the through holes of the sand screening plate 4 and falls onto the second slope 24 and slides out of the sand outlet 12. The coarse sand falls from the front side notch of the sand screening plate 4 onto the first slope 8 and slides out of the machine body 1. Among them, the left and right rear edges of the sand screening plate 4 are connected to the convex blocks 19, and the left and right front sides of the sand screening plate 4 are connected to the two support blocks 18, so as to make the sand screening plate 4 slightly inclined, so that the coarse sand can smoothly shake out of the sand screening plate 4. A connecting rod 20 is fixedly connected between the lower ends inside the two sliding sleeves 15. The lower part of the connecting rod 20 is connected with an upper joint block 21, and the lower part of the upper joint block 21 is movably connected with a lower joint block 22 through three hinge combinations 23 at the rear side; the front side bottom of the lower joint block 22 is rounded. When the sliding sleeve 15, the sliding rod 16, the ferrule 17, the support block 18, the convex block 19, and the sand screening plate 4 move forward, the lower joint block 22 collides with the second slope 24 forward and opens backward due to the action of the hinge 23. When the sliding sleeve 15, the sliding rod 16, the ferrule 17, the support block 18, the convex block 19, and the sand screening plate 4 move backward, the lower joint block 22 closes with the upper joint block 21 due to the action of the hinge 23, and the rear side of the lower joint block 22 can scrape off the fine sand staying and accumulating on the second slope 24.
[0022] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A sand screening device for construction engineering, comprising a body (1), characterized in that: The machine body (1) is fixedly provided with a driving motor (2) on both sides, and the output end of the driving motor (2) is connected to a driving wheel (5). Two sets of driving wheels (5) are located at the upper parts of the left and right sides of the inner cavity of the machine body (1). The lower parts of the left and right sides of the inner cavity of the machine body (1) are installed with driven wheels (7). A belt (6) is connected between the driving wheel (5) and the outer periphery of the driven wheel (7). The mutually visible side surfaces of the two sets of driven wheels (7) are fixedly connected to a convex column (14). The outer periphery of the convex column (14) is connected to a sliding sleeve (15). The lower parts of the left and right sides of the inner cavity of the machine body (1) are installed with two The four groups of fixing rings (25) are respectively located at the front and rear sides of the two groups of driven wheels (7); the front and rear sides of the sliding sleeve (15) body are slidably connected with sliding rods (16) through the fixing rings (25); the ends of the sliding rods (16) away from the sliding sleeve (15) are sleeved with a hoop (17); the left and right sides of the hoop (17) are connected with support blocks (18) on the left and right sides; the top edges of the two groups of support blocks (18) on the rear side are connected with protrusions (19); and the sand screening plates (4) are connected between the two groups of protrusions (19) and the sides of the two groups of support blocks (18) on the front side.
2. A sand screening device for construction engineering according to claim 1, characterized in that: Two groups of slope grooves are provided on the front and rear sides of the top of the machine body (1), and a sand inlet (3) is provided at the bottom of the slope groove.
3. A sand screening device for construction engineering according to claim 1, characterized in that: A first slope (8) is arranged at the front side of the bottom of the inner cavity of the machine body (1), a second slope (24) is arranged at the rear side of the first slope (8), a sand outlet (12) is opened at the rear bottom of the machine body (1), and the bottom end of the second slope (24) is located at the front side of the sand outlet (12).
4. A sand screening device for construction engineering according to claim 1, characterized in that: A protective plate (13) is provided on the rear side of the top of the inner cavity of the machine body (1).
5. The sand screening device for construction engineering according to claim 1, characterized in that: A connecting rod (20) is fixedly connected between the lower ends of the two groups of sliding sleeves (15); the lower part of the connecting rod (20) is connected to an upper closing block (21); the rear side of the upper closing block (21) is movably connected to three sets of hinges (23); the lower part of the upper closing block (21) is movably connected to a lower closing block (22) via three sets of hinges (23).
6. A sand screening device for construction engineering according to claim 1, characterized in that: The central sides of the two sets of driving wheels (5) are connected with connecting shafts (9), the middle parts of the two sets of connecting shafts (9) are butt-jointed with square shafts (10), and the four edges of the square shafts (10) are equidistantly connected with multiple sets of blades (11).