High-efficiency sand screening machine for construction engineering
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI ZHONGHUO CONSTRUCTION CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-08-07
AI Technical Summary
[0003]在建筑工程中,需要大量的沙子,在使用前需要筛沙,现有筛沙一般是通过筛网或者筛筒对沙土混合物进行筛分,在筛分过程中,细小的沙子会从筛网或者筛筒中落下,大颗粒物质会残留在筛网表面,并随着筛网或者筛筒的震动缓慢掉落,但是由于大颗粒物质掉落的过程往往没有细沙掉落速度快,会导致大颗粒物质在筛网或者筛筒表面聚集,进而影响沙子的筛分效率
[0012] This construction project uses a high-efficiency sand screening machine. Two drive motors rotate cams, which rotate alternately, causing the swing seat to swing left and right. Simultaneously, the drive unit rotates the central shaft, which in turn rotates multiple rotating rings, agitators, and the screen. The sand to be screened is fed into the screen through the inlet. Under the rotation of the central shaft and the screen, fine sand falls from the screen onto the slope and slides to the ground, while large particles remain inside the screen and slowly fall off the screen surface as the swing seat continues to swing and the screen continues to rotate. The continuous rotation of the agitators disperses the large particles accumulated inside the screen, thus preventing them from accumulating and affecting the subsequent sand screening efficiency.
Smart Images

Figure CN224599785U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of construction engineering technology, specifically a high-efficiency sand screening machine for construction engineering. Background Technology
[0002] Construction engineering, a part of building construction, refers to the physical engineering project formed through the construction of various types of buildings and their ancillary facilities, as well as the installation of supporting lines, pipelines, and equipment.
[0003] In construction projects, a large amount of sand is required, and it needs to be sieved before use. Current sand sieving methods generally involve screening sand-soil mixtures using screens or screen cylinders. During the screening process, fine sand falls through the screen or screen cylinder, while larger particles remain on the screen surface and slowly fall off with the vibration of the screen or screen cylinder. However, since the large particles often fall slower than the fine sand, they tend to accumulate on the screen or screen cylinder surface, thus affecting the sand screening efficiency. Utility Model Content
[0004] The purpose of this invention is to provide a high-efficiency sand screening machine for construction engineering, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency sand screening machine for construction engineering, comprising a base, a swing seat slidably connected to the upper end of the base, a drive motor installed on both the left and right sides of the base, a cam installed on the upper end of the drive motor, the side surface of the cam being formed by alternating plane and arc surfaces, four support columns installed in a rectangular array at the upper edge of the swing seat, an arc-shaped outer shell installed at the upper end of the four support columns, a sand removal port opened at the lower end of the outer shell, and fixed rods fixedly installed at the front and rear openings of the outer shell, an inlet fixedly installed at the upper end of one of the fixed rods, a fixed plate installed at the lower end of the inlet, a central rotating shaft rotatably installed on the other side of the fixed plate, the other end of the central rotating shaft being rotatably connected to the inner side of another fixed rod, multiple rotating rings installed on the surface of the central rotating shaft by multiple rods in an equidistant array, four agitation components installed between adjacent two rotating rings, the four agitation components being fixedly installed on the surface of the central rotating shaft in a cross array, and a screen being laid between the multiple rotating rings.
[0006] Preferably, the upper end of the base is provided with a groove, and multiple spring telescopic rods are equidistantly arranged in the side wall of the groove near the drive motor. One end of the multiple spring telescopic rods on the same side is connected to a connecting plate, and multiple sliding rods are equidistantly arranged between two connecting plates.
[0007] Preferably, a swing block is fixedly installed at the lower end of the swing seat, and multiple through slots are provided on both the left and right sides of the swing block. Multiple sliding rods are slidably connected inside the multiple through slots. Multiple rotating wheels are installed in a rectangular array at the lower end of the swing seat, and the rotating wheels are rotatably connected to the bottom of the groove.
[0008] Preferably, the upper end of the swing seat is provided with a ramp, which is located directly below the sand removal port.
[0009] Preferably, the sand removal port has multiple partition plates installed in an equidistant array inside.
[0010] Preferably, the plurality of rotating rings are slidably connected to the outer casing via guide rails.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] This construction project uses a high-efficiency sand screening machine. Two drive motors rotate cams, which rotate alternately, causing the swing seat to swing left and right. Simultaneously, the drive unit rotates the central shaft, which in turn rotates multiple rotating rings, agitators, and the screen. The sand to be screened is fed into the screen through the inlet. Under the rotation of the central shaft and the screen, fine sand falls from the screen onto the slope and slides to the ground, while large particles remain inside the screen and slowly fall off the screen surface as the swing seat continues to swing and the screen continues to rotate. The continuous rotation of the agitators disperses the large particles accumulated inside the screen, thus preventing them from accumulating and affecting the subsequent sand screening efficiency.
[0013] This construction project uses a high-efficiency sand screening machine. The sliding connection between the slide bar and the through groove allows for the sliding connection between the swing block and the groove, which provides a certain guiding and limiting effect when the swing seat swings.
[0014] This construction project uses a high-efficiency sand screening machine. By setting two sets of spring telescopic rods inside the groove, each set of spring telescopic rods is installed on the side close to the drive motor. When the swing seat swings, the two sets of spring telescopic rods are squeezed against each other. After being squeezed, they will rebound, thereby assisting the drive motors on both sides to drive the swing block and swing seat to swing, and providing a certain buffering effect, increasing the service life of the device. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the structure of the base and the swing seat of this utility model;
[0017] Figure 3This is a schematic diagram of the rotating ring of this utility model.
[0018] In the diagram: 1. Base; 2. Swing seat; 3. Inclined ramp; 4. Drive motor; 5. Cam; 6. Support column; 7. Outer shell; 8. Fixed rod; 9. Feed inlet; 10. Swing block; 11. Through groove; 12. Groove; 13. Spring telescopic rod; 14. Connecting plate; 15. Slide rod; 16. Rotating wheel; 17. Divider plate; 18. Fixed plate; 19. Sand removal port; 20. Rotating ring; 21. Central rotating shaft; 22. Agitator assembly; 23. Screen. Detailed Implementation
[0019] 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.
[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0021] like Figures 1 to 3As shown, this embodiment of the high-efficiency sand screening machine for construction engineering includes a base 1. A swing seat 2 is slidably connected to the upper end of the base 1. The swing seat 2 is slidably connected to the base 1, and can swing left and right regularly at the upper end of the base 1. A drive motor 4 is installed on both the left and right sides of the base 1. The drive motor 4 is fixedly installed on the left and right sides of the base 1. A cam 5 is installed on the upper end of the drive motor 4. The side surface of the cam 5 is formed by alternating plane and arc surface. The drive motor 4 can drive the cam 5 to rotate, and the two cams 5 rotate alternately. When the arc-shaped convex surface of one cam 5 approaches the swing seat 2, the cam 5 on the other side... The plane is close to the swing seat 2, and the swing seat 2 will move towards the cam 5 on the plane. Through the staggered rotation of the two cams 5, the arc-shaped convex surface and the plane alternate, thus causing the swing seat 2 to swing left and right in a regular manner. Four support columns 6 are installed in a rectangular array at the upper edge of the swing seat 2. The upper end of the four support columns 6 is jointly installed with an arc-shaped outer shell 7. The four support columns 6 can provide support for the outer shell 7. The outer shell 7 is a semi-circular arc. The lower end of the outer shell 7 has a sand removal port 19. Fixing rods 8 are fixedly installed at the front and rear openings of the outer shell 7. The upper end of one of the fixing rods 8 is fixedly installed with a feed rod. A fixed plate 18 is installed at the lower end of the inlet 9, and the fixed plate 18 is fixedly connected to the outer shell 7. A central rotating shaft 21 is rotatably installed on the other side of the fixed plate 18. A drive device is installed on one side of the fixed plate 18, and the central rotating shaft 21 is installed on the other side. The central rotating shaft 21 is connected to the output end of the drive device, which drives the central rotating shaft 21 to rotate. The other end of the central rotating shaft 21 is rotatably connected to the inner side of another fixed rod 8. Multiple rotating rings 20 are installed on the surface of the central rotating shaft 21 through multiple rods in an equidistant array. Four agitation components 22 are installed between two adjacent rotating rings 20. The 2 rotating rings 20 are fixedly installed on the surface of the central rotating shaft 21 in a cross array. A screen 23 is laid between the multiple rotating rings 20. The screen 23 is cylindrical and completely covers the surface of the multiple rotating rings 20. Each rotating ring 20 is connected to the central rotating shaft 21 through four rods. Sand enters the interior of the screen 23 through the feed port 9. The central rotating shaft 21 drives the multiple rotating rings 20 and the screen 23 to rotate synchronously, thereby screening the sand inside the screen 23. The stirring component 22 is composed of multiple horizontal bars arranged in an equidistant array. As the central rotating shaft 21 rotates, the stirring component 22 will break up large particles of impurities accumulated inside the screen 23.
[0022] Specifically, a groove 12 is provided at the upper end of the base 1. Multiple spring telescopic rods 13 are equidistantly arranged inside the groove 12 near the side wall of the drive motor 4. A connecting plate 14 is installed at one end of each of the multiple spring telescopic rods 13 on the same side. Multiple sliding rods 15 are equidistantly arranged between two connecting plates 14. A swing block 10 is fixedly installed at the lower end of the swing seat 2. Multiple through slots 11 are provided on both the left and right sides of the swing block 10. Multiple sliding rods 15 are slidably connected inside the multiple through slots 11. The sliding connection between the sliding rods 15 and the through slots 11 slidably connects the swing block 10 and the groove 12, providing guidance and constraint when the swing seat 2 swings. The lower rectangular array of the swing seat 2 is equipped with multiple rotating wheels 16, which are rotatably connected to the bottom of the groove 12. By setting two sets of spring telescopic rods 13 inside the groove 12, each set of spring telescopic rods 13 is installed on the side close to the drive motor 4. When the swing seat 2 swings, the two sets of spring telescopic rods 13 will be squeezed against each other and will rebound after being squeezed. This will assist the drive motors 4 on both sides to drive the swing block 10 and the swing seat 2 to swing, and provide a certain buffering effect, increasing the service life of the device. By rolling the rotating wheels 16 at the bottom to the bottom of the groove 12, strong frictional contact between the swing block 10 and the groove 12 can be avoided, reducing equipment damage.
[0023] Furthermore, the upper end of the swing seat 2 is provided with a ramp 3, which is located directly below the sand removal port 19. The sloping ramp 3 can assist the fine sand to slide down under the action of gravity.
[0024] Furthermore, the sand removal port 19 is equipped with multiple partition plates 17 arranged in an equidistant array inside. These partition plates 17 can separate the falling fine sand and prevent the fine sand at the bottom from accumulating.
[0025] Furthermore, multiple rotating rings 20 are slidably connected to the outer casing 7 via guide rails. It should be noted that, as... Figure 1 As shown, the rotating ring 20 is slidably connected to the outer shell 7, and the lowest end of the outer shell 7 is located below the screen 23. The left and right sides of the outer shell 7 are slidably connected to the rotating ring 20 through slide rails.
[0026] The usage method of this embodiment is as follows: Two drive motors 4 drive cams 5 to rotate, and the two cams 5 rotate alternately, thereby driving the swing seat 2 to swing left and right. At the same time, the drive device is started to drive the central rotating shaft 21 to rotate. The central rotating shaft 21 drives multiple rotating rings 20, stirring components 22 and screen 23 to rotate. The sand to be screened is put into the screen 23 from the feed port 9. Under the rotation of the central rotating shaft 21 and screen 23, fine sand will fall from the inside of screen 23 to the slope 3 and slide to the ground. Large particles of impurities will remain inside screen 23 and slowly fall off the surface of screen 23 as the swing seat 2 continues to swing and the screen 23 continues to rotate. The continuous rotation of stirring components 22 will disperse the large particles of impurities accumulated inside screen 23, thereby avoiding the accumulation of large particles of impurities and affecting the subsequent sand screening efficiency.
[0027] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A high-efficiency sand screening machine for construction engineering, comprising a base (1), characterized in that: A swing seat (2) is slidably connected to the upper end of the base (1). A drive motor (4) is installed on both the left and right sides of the base (1). A cam (5) is installed on the upper end of the drive motor (4). The side surface of the cam (5) is formed by alternating plane and arc surface. Four support columns (6) are installed in a rectangular array at the upper edge of the swing seat (2). An arc-shaped outer shell (7) is installed on the upper end of the four support columns (6). A sand removal port (19) is opened at the lower end of the outer shell (7). Fixing rods (8) are fixedly installed at the openings on the front and rear sides of the outer shell (7). The upper end of one side of the fixing rod (8) is fixed. A feed inlet (9) is installed, and a fixing plate (18) is installed at the lower end of the feed inlet (9). A central rotating shaft (21) is rotatably installed on the other side of the fixing plate (18). The other end of the central rotating shaft (21) is rotatably connected to the inner side of another fixing rod (8). Multiple rotating rings (20) are installed on the surface of the central rotating shaft (21) through multiple rods in an equidistant array. Four stirring components (22) are installed between two adjacent rotating rings (20). The four stirring components (22) are fixedly installed on the surface of the central rotating shaft (21) in a cross array. A screen (23) is laid between the multiple rotating rings (20).
2. The high-efficiency sand screening machine for construction engineering according to claim 1, characterized in that: The upper end of the base (1) is provided with a groove (12). Multiple spring telescopic rods (13) are installed in an equidistant array on the side wall of the groove (12) near the drive motor (4). One end of the multiple spring telescopic rods (13) on the same side is connected to a connecting plate (14). Multiple sliding rods (15) are installed in an equidistant array between the two connecting plates (14).
3. The high-efficiency sand screening machine for construction engineering according to claim 2, characterized in that: A swing block (10) is fixedly installed at the lower end of the swing seat (2). Multiple through slots (11) are provided on both the left and right sides of the swing block (10). Multiple sliding rods (15) are slidably connected inside the multiple through slots (11). Multiple rotating wheels (16) are installed in a rectangular array at the lower end of the swing seat (2). The rotating wheels (16) are rotatably connected to the bottom of the groove (12).
4. The high-efficiency sand screening machine for construction engineering according to claim 1, characterized in that: The upper end of the swing seat (2) is provided with a ramp (3), which is located directly below the sand removal port (19).
5. The high-efficiency sand screening machine for construction engineering according to claim 1, characterized in that: The sand removal port (19) has multiple partition plates (17) installed in an equidistant array inside.
6. The high-efficiency sand screening machine for construction engineering according to claim 1, characterized in that: The plurality of rotating rings (20) are slidably connected to the outer shell (7) via guide rails.