Gravel screening device for civil construction

Abstract

The gravel screening device for civil construction comprises a base, four supporting legs are fixedly installed on the top of the base, bearing seats are fixedly installed on the opposite sides of the top ends of the four supporting legs, supporting columns are movably connected to the inner sides of the bearing seats in a sleeved mode, sliding blocks are fixedly installed at the opposite ends of the supporting columns, and the sliding blocks are movably connected with the supporting columns in a sleeved mode. A concave sliding frame is slidably mounted on the outer side of the sliding block, a box body is fixedly mounted on the opposite side of the concave sliding frame, a plurality of adjusting holes are formed in the two sides of the concave sliding frame, and fixing bolts are movably inserted into the adjusting holes; by arranging the cover plate and the box body, dust and water mist are limited on the inner side of the cover plate and the inner side of the box body when screening operation is carried out, dissipation and floating-out of the dust and the water mist are reduced, and therefore the working environment is protected, breathing health of operators is guaranteed, gravel is prevented from flying out in the screening process, and safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of sand and gravel screening technology in civil engineering construction, specifically a sand and gravel screening device for civil engineering construction. Background Technology

[0002] Civil engineering is a Chinese term that generally refers to civil engineering projects. Civil engineering encompasses all activities related to the planning, construction, and maintenance of infrastructure projects involving water, soil, and culture. Currently, typical civil engineering projects include: housing, roads, waterworks, canals, flood control, and transportation. In the past, all non-military civilian engineering projects were categorized under this term. However, with the broadening of engineering science, many aspects that originally fell under the scope of civil engineering have become independent disciplines. Nowadays, the term "civil engineering" mostly refers specifically to smaller-scale civil engineering specialties, including the primary construction of residential buildings, public buildings, and structures. This includes tasks such as dewatering, earthwork excavation, foundation laying, pouring and masonry of retaining structures (columns, beams, slabs, walls, etc.), reinforcement, exterior doors and windows, and simple decoration.

[0003] In the process of civil engineering construction, it is necessary to screen sand and gravel. For some high-quality concrete pouring, sand and gravel need to be screened and washed to reduce dust and improve construction quality. However, existing sand and gravel screening devices are mostly open-type, which can easily cause dust to escape during screening. Furthermore, washing is mostly done by direct water flow, which can affect the operation and result in poor cleaning. Based on this, a sand and gravel screening device for civil engineering construction is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a sand and gravel screening device for civil construction to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sand and gravel screening device for civil construction, comprising a base, four legs fixedly mounted on the top of the base, bearing seats fixedly mounted on opposite sides of the tops of the four legs, a support column movably sleeved on the inner side of the bearing seat, a slider fixedly mounted on the opposite end of the support column, a concave sliding frame slidably mounted on the outer side of the slider, a housing fixedly mounted on the opposite side of the concave sliding frame, several adjustment holes opened on both sides of the concave sliding frame, fixing bolts movably inserted into the adjustment holes, a rotating shaft movably mounted inside the housing through a bearing, and a servo motor drively connected to one end of the rotating shaft. The machine has a cover plate that is hinged to one side of the top of the housing. A connecting pipe is fixedly installed at the bottom of the cover plate, and several atomizing nozzles are connected to the bottom of the connecting pipe. A stone outlet is opened at the end of the housing away from the servo motor. A guide plate is fixedly installed on the outer side of the housing away from the servo motor. A feed hopper is fixedly fitted inside the housing away from the stone outlet. Two sets of support rods are fixedly installed on the outer side of the rotating shaft. Filter cartridges are fixedly installed on the outer side of the two sets of support rods. A discharge pipe is connected to the bottom of the housing. Several connecting pipes are connected to the bottom of the housing. A guide pipe is connected to the bottom end of the connecting pipe. Four support feet are fixedly installed at the bottom of the base.

[0006] Preferably, the adjusting holes are linearly and evenly distributed inside the concave slide frame, the fixing bolts movably pass through the slider and extend to the outside of the concave slide frame, and there is a gap between the slider and the support and the concave slide frame, and the size of the gap is larger than the spacing of the adjusting holes.

[0007] Preferably, the connecting pipes are arranged linearly and uniformly at the bottom of the box, and one end of the guide pipe is connected to the inside of the discharge pipe.

[0008] Preferably, the servo motor is fixedly mounted on the outside of the housing by a bracket, and the two sets of support rods are evenly distributed in a circle on the opposite sides of the rotating shaft and the filter cartridge.

[0009] Preferably, the atomizing nozzles are arranged linearly and evenly at the bottom of the connecting pipe, one end of the connecting pipe is fixedly inserted through the cover plate and extends to the top of the cover plate, and the other end of the connecting pipe is fixedly installed at the bottom of the filter cartridge.

[0010] Preferably, the feed hopper is fixedly connected to the inside of the filter cylinder through the cover plate, the position of the stone outlet corresponds to the position of the inner wall of the filter cylinder, the position of the stone outlet corresponds to the position of the guide plate, and the position of the guide plate corresponds to the position of the filter cylinder.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: When using this device, the user places the sand and gravel to be screened and cleaned inside the filter cylinder through the feed hopper, then starts the servo motor to drive the rotating shaft to rotate, thereby driving the filter cylinder to rotate through the support rod, and then closes the cover plate and connects the water pump input hose to the outside of the connecting pipe, thereby inputting water flow into the connecting pipe. The water flow is guided through the connecting pipe and atomized and sprayed inside the box through the atomizing nozzle, thereby cleaning the filter cylinder and sand and gravel during the rotation process. The screened stones are guided through the rolling of the filter cylinder and discharged through the stone outlet and guide plate, while the screened sand and water flow are guided into the guide pipe through the connecting pipe and discharged through the discharge pipe, thereby realizing the screening and cleaning of sand and gravel and increasing the convenience of use;

[0012] This invention, by setting up a cover plate and a box, confines dust and water mist to the inside of the cover plate and box during screening operations, reducing the escape of dust and water mist, thereby protecting the working environment, ensuring the respiratory health of workers, and preventing sand and gravel from flying out during the screening process, thus increasing safety. Attached Figure Description

[0013] Figure 1 This is a front-view stereoscopic structural diagram of the present utility model.

[0014] Figure 2 This is a rear-view three-dimensional appearance structural diagram of the present utility model.

[0015] Figure 3 This is a schematic diagram of the front sectional structure of this utility model.

[0016] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0017] In the diagram: 1. Base; 2. Support leg; 3. Concave sliding frame; 4. Fixing bolt; 5. Adjustment hole; 6. Stone outlet; 7. Guide plate; 8. Discharge pipe; 9. Rotating shaft; 10. Filter cartridge; 11. Cover plate; 12. Connecting pipe; 13. Atomizing nozzle; 14. Feed hopper; 15. Servo motor; 16. Support rod; 17. Box body; 18. Slider; 19. Support column; 20. Bearing seat; 21. Support foot; 22. Guide pipe; 23. Connecting pipe. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-4 This utility model provides a technical solution: a sand and gravel screening device for civil construction, including a base 1, four support legs 2 fixedly installed on the top of the base 1, bearing seats 20 fixedly installed on opposite sides of the top of the four support legs 2, a support column 19 movably sleeved on the inner side of the bearing seat 20, a slider 18 fixedly installed on the opposite end of the support column 19, a concave sliding frame 3 slidably installed on the outer side of the slider 18, a housing 17 fixedly installed on the opposite side of the concave sliding frame 3, several adjustment holes 5 are opened on both sides of the concave sliding frame 3, and fixing bolts 4 are movably inserted into the adjustment holes 5. A rotating shaft 9 is movably installed inside the housing 17 through a bearing, and a servo motor 15 is drivenly connected to one end of the rotating shaft 9. A cover plate 11 is installed on the side via a hinge. A connecting pipe 12 is fixedly installed at the bottom of the cover plate 11. Several atomizing nozzles 13 are connected to the bottom of the connecting pipe 12. A stone outlet 6 is opened at the end of the housing 17 away from the servo motor 15. A guide plate 7 is fixedly installed on the outer side of the end of the housing 17 away from the servo motor 15. A feed hopper 14 is fixedly sleeved inside the end of the housing 17 away from the stone outlet 6. Two sets of support rods 16 are fixedly installed on the outer side of the rotating shaft 9. A filter cartridge 10 is fixedly installed on the outer side of the two sets of support rods 16. A discharge pipe 8 is connected to the bottom of the housing 17. Several connecting pipes 23 are connected to the bottom of the housing 17. A guide pipe 22 is connected to the bottom end of the connecting pipes 23. Four support legs 21 are fixedly installed at the bottom of the base 1.

[0020] The working principle of the above technical solution is as follows: During use, the user places the sand and gravel to be screened and cleaned inside the filter cylinder 10 through the feed hopper 14, and then starts the servo motor 15 to drive the rotating shaft 9 to rotate, thereby driving the filter cylinder 10 to rotate through the support rod 16. Then, the cover plate 11 is closed and the water pump input hose is sleeved on the outside of the connecting pipe 12, thereby inputting water flow into the connecting pipe 12. The water flow is guided through the connecting pipe 12 and atomized and sprayed into the inside of the box 17 through the atomizing nozzle 13, thereby cleaning the filter cylinder 10 and the sand and gravel during the rotation process. The screened stones are guided by the rolling of the filter cylinder 10 and discharged through the stone outlet 6 and the guide plate 7. The screened sand and water flow are guided into the guide pipe 22 through the connecting pipe 23 and discharged through the discharge pipe 8, thereby realizing the screening and cleaning of sand and gravel and increasing the convenience of use.

[0021] In another implementation scheme, such as Figures 1-4 As shown, the adjustment holes 5 are linearly and evenly distributed inside the concave slide frame 3. The fixing bolt 4 moves through the slider 18 and extends to the outside of the concave slide frame 3. There are gaps between the slider 18 and the support column 19 and the concave slide frame 3, and the size of the gap is larger than the spacing of the adjustment holes 5.

[0022] When it is necessary to adjust the tilt angle of the housing 17, one end of the housing 17 is fixed by inserting the fixing bolt 4 into the adjustment hole 5 and the slider 18. The other end is raised by lifting the housing 17, thereby causing the position of the concave slide frame 3 and the slider 18 to change. At this time, the relative position of the slider 18 and the support column 19 with the concave slide frame 3 moves, reducing the gap. The size of the gap between the slider 18 and the support column 19 and the concave slide frame 3 is set to the minimum allowable adjustment amount of two holes of the adjustment hole 5, which facilitates changing the tilt angle of the housing 17, avoids locking, facilitates disassembly and assembly, and facilitates height adjustment, increasing the convenience of use.

[0023] In another implementation scheme, such as Figures 1-3 As shown, the connecting pipes 23 are arranged linearly and evenly at the bottom of the box 17, and one end of the guide pipe 22 is connected to the inside of the discharge pipe 8.

[0024] The atomizing nozzle 13 discharges the sieved sand and water, avoiding the situation where sand concentrates and causes blockage in one pipe. The purpose is to discharge while sieving, making it easier to drain.

[0025] In another implementation scheme, such as Figures 1-3 As shown, the servo motor 15 is fixedly installed on the outside of the housing 17 by a bracket, and the two sets of support rods 16 are evenly distributed in a circle on the opposite sides of the rotating shaft 9 and the filter cartridge 10.

[0026] Once the servo motor 15 is fixed, it can easily drive the rotating shaft 9 to rotate, thereby driving the filter cartridge 10 to rotate through the support rod 16. There are three support rods 16, which are distributed in a circle to provide uniform rotation support and reduce the impact on sand and gravel.

[0027] In another implementation scheme, such as Figures 1-3 As shown, the atomizing nozzles 13 are arranged linearly and evenly at the bottom of the connecting pipe 12. One end of the connecting pipe 12 is fixedly inserted through the cover plate 11 and extends to the top of the cover plate 11, while the other end of the connecting pipe 12 is fixedly installed at the bottom of the cover plate 11.

[0028] The uniform distribution of the atomizing nozzles 13 facilitates the uniform atomization and spraying of water onto the top of the filter cartridge 10, making it easy to clean evenly. The function of the cover plate 11 at the extension of the connecting pipe 12 is that water can still be input even when the cover plate 11 is closed, increasing the stability of the structure.

[0029] In another implementation scheme, such as Figures 1-3 As shown, the feed hopper 14 is fixedly connected to the inside of the cover plate 11 and the filter cylinder 10. The position of the stone outlet 6 corresponds to the position of the inner wall of the filter cylinder 10. The position of the stone outlet 6 corresponds to the position of the guide plate 7. The position of the guide plate 7 corresponds to the position of the filter cylinder 10.

[0030] The feed hopper 14 guides the sand and gravel into the inner side of the filter cylinder 10. The stone outlet 6 and the filter cylinder 10 are kept on the same curved surface as the guide plate 7, which facilitates the stable discharge of stones and reduces jamming.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sand and gravel screening device for civil construction, comprising a base (1), characterized in that: Four legs (2) are fixedly installed on the top of the base (1). Bearing seats (20) are fixedly installed on opposite sides of the top of the four legs (2). A support column (19) is movably sleeved on the inner side of the bearing seat (20). A slider (18) is fixedly installed on the opposite end of the support column (19). A concave slide frame (3) is slidably installed on the outer side of the slider (18). A housing (17) is fixedly installed on the opposite side of the concave slide frame (3). Several adjustment holes (5) are opened on both sides of the concave slide frame (3). Fixing bolts (4) are movably inserted into the adjustment holes (5). A rotating shaft (9) is movably installed through the housing (17) via a bearing. A servo motor (15) is driven to one end of the rotating shaft (9). A cover plate (11) is movably installed on one side of the top of the housing (17) via a hinge. 1) A connecting pipe (12) is fixedly installed at the bottom of the box (17), and a number of atomizing nozzles (13) are connected to the bottom of the connecting pipe (12). A stone outlet (6) is opened at the end of the box (17) away from the servo motor (15). A guide plate (7) is fixedly installed on the outer side of the end of the box (17) away from the servo motor (15). A feed hopper (14) is fixedly sleeved inside the end of the box (17) away from the stone outlet (6). Two sets of support rods (16) are fixedly installed on the outer side of the rotating shaft (9). A filter cartridge (10) is fixedly installed on the outer side of the two sets of support rods (16). A discharge pipe (8) is connected to the bottom of the box (17). A number of connecting pipes (23) are connected to the bottom of the box (17). A guide pipe (22) is connected to the bottom end of the connecting pipe (23). Four support feet (21) are fixedly installed at the bottom of the base (1).

2. The sand and gravel screening device for civil construction according to claim 1, characterized in that: The adjustment holes (5) are linearly and evenly distributed inside the concave slide frame (3). The fixing bolt (4) moves through the slider (18) and extends to the outside of the concave slide frame (3). There is a gap between the slider (18) and the support (19) and the concave slide frame (3), and the size of the gap is larger than the spacing of the adjustment holes (5).

3. The sand and gravel screening device for civil construction according to claim 1, characterized in that: The connecting pipes (23) are arranged linearly and evenly at the bottom of the box (17), and one end of the guide pipe (22) is connected to the inside of the discharge pipe (8).

4. The sand and gravel screening device for civil construction according to claim 1, characterized in that: The servo motor (15) is fixedly installed on the outside of the housing (17) by a bracket, and the two sets of support rods (16) are evenly distributed in a circle on the opposite sides of the rotating shaft (9) and the filter cartridge (10).

5. A sand and gravel screening device for civil construction according to claim 1, characterized in that: The atomizing nozzles (13) are arranged linearly and evenly at the bottom of the connecting pipe (12). One end of the connecting pipe (12) is fixedly inserted through the cover plate (11) and extends to the top of the cover plate (11). The other end of the connecting pipe (12) is fixedly installed at the bottom of the cover plate (11).

6. The sand and gravel screening device for civil construction according to claim 1, characterized in that: The feed hopper (14) is fixedly connected to the inside of the cover plate (11) and the filter cylinder (10). The position of the stone outlet (6) corresponds to the position of the inner wall of the filter cylinder (10). The position of the stone outlet (6) corresponds to the position of the guide plate (7). The position of the guide plate (7) corresponds to the position of the filter cylinder (10).

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