Sand screening machine for constructional engineering

Abstract

The utility model discloses a sand screening machine for constructional engineering, which belongs to the technical field of sand screening and comprises a sand screening box, a sand leaking screen plate is mounted on the inner side of the sand screening box and located on the upper middle portion, and a scattering assembly used for stirring sand is mounted on the inner side of the sand screening box and located above the sand leaking screen plate. Sand screening assemblies used for screening sand are installed on the two sides of the sand screening box correspondingly, raking assemblies used for preventing blockage are installed on the two sides of the sand screening box and located on one sides of the sand screening assemblies, a scattering assembly scatters the sand on a sand leaking screen plate, and the two screening assemblies conduct double screening on materials; and the first screening plate can screen the screened sand again, and the problems that when existing equipment conducts sand screening operation, the sand contains water and is prone to caking, the downward flowing speed of the sand is reduced, accumulation or blockage is prone to occurring, multiple screening on the sand is inconvenient, the size difference of screened sand particles is large, and the screening efficiency is high are solved. And the sand screening sufficiency and practicability of the equipment are influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of sand screening, in particular to a sand screening machine for construction engineering. Background Art

[0002] A construction project refers to an engineering entity formed by the construction of various types of buildings and their ancillary facilities and the installation of supporting lines, pipelines, and equipment. Among them, "buildings" refer to projects with roofs, beams, columns, walls, foundations, and internal spaces that can meet people's needs for production, residence, study, and public activities. Construction projects usually use sand in the construction process. In order to improve the quality of construction, the sand needs to be screened. Currently, the screening of sand screening equipment is relatively single, and cyclic screening is required to achieve the purpose of sufficient sand screening, and the efficiency is low.

[0003] When existing equipment is used for sand screening, the sand contains moisture and is prone to agglomeration, which reduces the downward flow rate of the sand and is prone to accumulation or blockage. It is also inconvenient to perform multiple screenings of the sand, resulting in a large difference in the volume of the screened sand particles, affecting the adequacy and practicality of the equipment for sand screening. Therefore, those skilled in the art provide a sand screening machine for construction projects to solve the problems raised in the above-mentioned background technology. Utility Model Content

[0004] The purpose of the utility model is to provide a sand screening machine for construction engineering to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sand screening machine for construction engineering, comprising a sand screening box, a sand leakage mesh plate is installed inside the sand screening box and located in the middle and upper part, a scattering component for stirring sand is installed inside the sand screening box and located above the sand leakage mesh plate, sand screening components for screening sand are respectively installed on both sides of the sand screening box, and a prying component for preventing blockage is installed on both sides of the sand screening box and located on one side of the sand screening component, the scattering component comprises a rotating rod that runs through the sand screening box and is used to drive, and the rotating rod is located on one side of the sand screening box and located on the rotating rod A first motor for providing power is installed at one end, a plurality of evenly arranged breaking rods are installed on the outside of the rotating rod, a sweeping brush for cleaning is installed at one end of the breaking rod, the sand screening assembly includes second screen plates respectively installed on both sides of the inside of the sand screening box, a support plate is connected between the bottom of the second screen plate and the inside of the sand screening box, third discharge pipes for discharging materials are respectively installed on both sides of the outside of the sand screening box, the shoveling assembly includes guide blocks installed on both sides of the inside of the sand screening box and located below the second screen plate, and a sliding plate for connection is penetrated inside the guide block;

[0006] A first sieve plate is installed at the bottom inner side of the sand screening box, a first discharge pipe is installed at the bottom of the sand screening box and located on one side of the first sieve plate, a second discharge pipe is installed at the bottom of the sand screening box and located on the other side of the first sieve plate, the first sieve plate is arranged obliquely, two groups of sand screening assemblies are arranged up and down, a material picking tooth is installed at the bottom of the sliding plate and near one end, the sliding plate is slidably connected to the guide block, the cross-section of the guide block is triangular, the aperture of the second sieve plate above is smaller than the aperture of the second sieve plate below, the angle between the support plate and the second sieve plate is an acute angle, the rotating rod is rotatably connected to the sand screening box, and the cross-section of the breaking rod is L-shaped.

[0007] Preferably: the breaking up assembly includes a rotating rod that passes through the sand screening box for driving, a first motor for providing power is installed on one side of the sand screening box and at one end of the rotating rod, a plurality of evenly arranged breaking up rods are installed on the outside of the rotating rod, a sweeping brush for cleaning is installed at one end of the breaking up rod, the rotating rod is rotatably connected to the sand screening box, and the cross-section of the breaking up rod is L-shaped.

[0008] Preferably: the sand screening assembly includes second sieve plates respectively installed on both sides of the sand screening box, a support plate is connected between the bottom of the second sieve plate and the inside of the sand screening box, third discharge pipes for discharging materials are respectively installed on both sides of the outside of the sand screening box, the aperture of the second sieve plate above is smaller than the aperture of the second sieve plate below, and the angle between the support plate and the second sieve plate is an acute angle.

[0009] Preferably: the scraping assembly includes guide blocks installed on both sides of the sand screening box and located below the second screen plate, a sliding plate for connection passes through the guide block, a scraping tooth is installed at the bottom of the sliding plate and near one end, the sliding plate is slidably connected to the guide block, and the cross-section of the guide block is triangular.

[0010] Preferably: the scraping assembly also includes support frames respectively installed on both sides of the outside of the sand screening box, the support frame is penetrated by a rotating shaft for driving, a second motor for providing power is installed at one end of the rotating shaft, a cam for pushing is mounted on the outside of the rotating shaft, a follower block is connected to one end of the sliding plate, the cam is fixedly connected to the rotating shaft, and the cross-section of the end of the follower block is arc-shaped.

[0011] Preferably: the prying assembly also includes a movable groove opened at the inner bottom of the guide block, a guide rod for limiting the position is installed on the inner side of the movable groove, a spring for pushing is mounted on the outer side of the guide rod, a driving block is located on the outer side of the guide rod and at one end of the spring, the guide rod passes through the driving block and is slidably connected to the driving block, and both ends of the spring are fixedly connected to the movable groove and the driving block respectively.

[0012] Preferably: a first guide plate is installed on one side of the interior of the sand screening box and below the sand leakage mesh plate, and a plurality of evenly arranged second guide plates are installed at the bottom of the support plate, and the lengths of the plurality of second guide plates increase sequentially from top to bottom.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, by arranging a sand leakage mesh plate and a first screen plate, the sand leakage mesh plate can receive the sand put into the sand screening box, and then the sand on the sand leakage mesh plate is dispersed by a breaking component, so that the sand is dispersed and flows downward through the sand leakage mesh plate for screening. The two groups of screening components perform double screening on the material, and the first screen plate can screen the screened sand again. The screened sand is respectively discharged from the sand screening box through the first discharge pipe and the second discharge pipe, thereby improving the sufficiency and practicality of the equipment for screening sand.

[0015] 2. In the utility model, a rotating rod, a breaking rod and a sweeping brush are provided, and the first motor is used to drive the rotating rod to rotate, and then the rotating rod drives multiple breaking rods to break up the agglomerated sand, and then the breaking rod drives the sweeping brush to sweep the sand retained in the sand leakage screen while rotating, thereby increasing the rate at which the sand flows downward.

[0016] 3. In the utility model, by arranging a second screen plate, a spring and a cam, the aperture of the second screen plate above is smaller than that of the second screen plate below, the second screen plate above screens the sand with a small volume, and the second screen plate below screens the sand with a large volume, and then the first screen plate screens the sand that has been diverted down again, and the spring in the movable groove can squeeze and push the driving block to make the driving block slide on the outside of the guide rod, and at the same time, the driving block drives the scraping teeth at one end of the sliding plate to move, and then the second motor drives the cam to squeeze the driven block through the rotating shaft, and then the driven block squeezes and pushes the scraping teeth at one end of the sliding plate, so that the sliding plate drives the scraping teeth to reciprocate, so that the scraping teeth scrape the sand accumulated on the top of the support plate to avoid sand accumulation or blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a left-side cutaway stereoscopic view of the overall structure of the utility model;

[0019] Figure 3 The overall structure of the utility model Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 The overall structure of the utility model Figure 2Enlarged view of point B in the middle;

[0021] Figure 5 The overall structure of the utility model Figure 2 Enlarged view of point C in the middle.

[0022] In the figure: 1. sand screening box; 2. sand leakage mesh plate; 3. first screen plate; 4. first discharge pipe; 5. second discharge pipe; 6. rotating rod; 7. first motor; 8. breaking rod; 9. sweeping brush; 10. second screen plate; 11. support plate; 12. third discharge pipe; 13. guide block; 14. sliding plate; 15. scraping teeth; 16. support frame; 17. rotating shaft; 18. cam; 19. driven block; 20. movable groove; 21. guide rod; 22. spring; 23. driving block; 24. first guide plate; 25. second guide plate; 171. second motor. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1 to Figure 5 In the embodiment of the utility model, a sand screening machine for construction engineering comprises a sand screening box 1, a sand leakage mesh plate 2 is installed inside the sand screening box 1 and located in the middle and upper part, a breaking component for stirring sand is installed inside the sand screening box 1 and located above the sand leakage mesh plate 2, sand screening components for screening sand are respectively installed on both sides of the sand screening box 1, and a prying component for preventing blockage is installed on both sides of the sand screening box 1 and located on one side of the sand screening component, a first sieve plate 3 is installed at the bottom of the inner side of the sand screening box 1, a first discharge pipe 4 is installed at the bottom of the sand screening box 1 and located on one side of the first sieve plate 3, a second discharge pipe 5 is installed at the bottom of the sand screening box 1 and located on the other side of the first sieve plate 3, the first sieve plate 3 is arranged obliquely, and two groups of sand screening components are arranged up and down.

[0025] When in use, the sand leakage mesh plate 2 can receive the sand put into the sand screening box 1, and then use the breaking component to break up the sand on the sand leakage mesh plate 2, so that the sand can be dispersed and flow downward through the sand leakage mesh plate 2 for screening. The two groups of screening components perform double screening on the material, and the first screen plate 3 can screen the screened sand again. The screened sand is respectively discharged from the sand screening box 1 through the first discharge pipe 4 and the second discharge pipe 5, thereby improving the adequacy and practicality of the equipment in screening sand.

[0026] In one embodiment, specifically, the breaking up component includes a rotating rod 6 that passes through the sand screening box 1 for driving, a first motor 7 for providing power is installed on one side of the sand screening box 1 and at one end of the rotating rod 6, a plurality of evenly arranged breaking up rods 8 are installed on the outside of the rotating rod 6, a sweeping brush 9 for cleaning is installed at one end of the breaking up rod 8, the rotating rod 6 is rotatably connected to the sand screening box 1, the cross-section of the breaking up rod 8 is L-shaped, and the model of the first motor 7 is Y100L-2.

[0027] Among them, the first motor 7 can drive the rotating rod 6 to rotate, and then the rotating rod 6 drives multiple breaking rods 8 to break up the agglomerated sand, and then the breaking rods 8 drive the sweeping brush 9 to sweep the sand retained in the sand leakage mesh plate 2 while rotating, thereby increasing the rate at which the sand flows downward.

[0028] In one embodiment, specifically, the sand screening assembly includes second sieve plates 10 respectively installed on both sides of the interior of the sand screening box 1, a support plate 11 is connected between the bottom of the second sieve plate 10 and the interior of the sand screening box 1, and third discharge pipes 12 for discharging materials are respectively installed on both sides of the outside of the sand screening box 1, the aperture of the upper second sieve plate 10 is smaller than the aperture of the lower second sieve plate 10, the angle between the support plate 11 and the second sieve plate 10 is an acute angle, the support plate 11 can support the second sieve plate 10, the aperture of the upper second sieve plate 10 is smaller than the aperture of the lower second sieve plate 10, the upper second sieve plate 10 screens small sand, the lower second sieve plate 10 screens large sand, and then the first sieve plate 3 screens the diverted sand again.

[0029] Furthermore, the shoveling assembly includes guide blocks 13 installed on both sides of the interior of the sand screening box 1 and located below the second screen plate 10, the guide blocks 13 are penetrated with a sliding plate 14 for connection, and a shoveling tooth 15 is installed at the bottom and near one end of the sliding plate 14. The shoveling assembly also includes support frames 16 installed on both sides of the exterior of the sand screening box 1, the support frame 16 is penetrated with a rotating shaft 17 for driving, a second motor 171 for providing power is installed at one end of the rotating shaft 17, a cam 18 for pushing is set on the outside of the rotating shaft 17, a driven block 19 is connected to one end of the sliding plate 14, and the shoveling assembly also includes a support frame 16 installed on both sides of the exterior of the sand screening box 1 A movable groove 20 is provided at the bottom of the inner side of the flow block 13, and a guide rod 21 for limiting is installed on the inner side of the movable groove 20, and a spring 22 for pushing is provided on the outer side of the guide rod 21, and a driving block 23 is provided on the outer side of the guide rod 21 and located at one end of the spring 22, and the guide rod 21 passes through the driving block 23 and is slidably connected with the driving block 23, and both ends of the spring 22 are respectively fixedly connected with the movable groove 20 and the driving block 23, the cam 18 is fixedly connected with the rotating shaft 17, the end section of the driven block 19 is arc-shaped, the sliding plate 14 is slidably connected with the guide block 13, the cross-section of the guide block 13 is triangular, and the model of the second motor 171 is Y100L-2.

[0030] In one embodiment, specifically, the spring 22 in the movable groove 20 can squeeze and push the driving block 23, so that the driving block 23 slides on the outside of the guide rod 21, and at the same time, the driving block 23 drives the scraping teeth 15 at one end of the sliding plate 14 to move, and then the second motor 171 drives the cam 18 to squeeze the driven block 19 through the rotating shaft 17, and then the driven block 19 squeezes and pushes the scraping teeth 15 at one end of the sliding plate 14, so that the sliding plate 14 drives the scraping teeth 15 to reciprocate, so that the scraping teeth 15 scrape the sand accumulated on the top of the support plate 11 to avoid sand accumulation or blockage.

[0031] Among them, a first guide plate 24 is installed on one side of the inside of the sand screening box 1 and below the sand leakage mesh plate 2, and a plurality of evenly arranged second guide plates 25 are installed at the bottom of the support plate 11. The lengths of the plurality of second guide plates 25 increase successively from top to bottom. The first guide plate 24 can receive and guide the sand leaking from the sand leakage mesh plate 2, so that the sand is screened through the second screen plate 10 above. The second guide plate 25 below the support plate 11 blocks and guides the sand to prevent the sand from flowing downward and being discharged without being screened, thereby improving the efficiency and sufficiency of the equipment in screening the sand.

[0032] The working principle of this utility model:

[0033] First, sand is put into the sand screening box 1, and the sand leakage mesh plate 2 receives the sand put into the sand screening box 1, and then the first motor 7 is started to drive the rotating rod 6 to rotate, and then the rotating rod 6 drives multiple breaking rods 8 to break up the agglomerated sand, and then the breaking rod 8 drives the sweeping brush 9 to sweep the sand retained in the sand leakage mesh plate 2 while rotating, and at the same time the first guide plate 24 receives and guides the sand leaking from the sand leakage mesh plate 2, and then the sand falls onto the second screen plate 10 above through the sand leakage mesh plate 2, and then the spring 22 in the movable groove 20 squeezes and pushes the driving block 23, so that the driving block 23 slides on the outside of the guide rod 21, and at the same time the driving block 23 drives The scraping teeth 15 at one end of the sliding plate 14 move, and then the second motor 171 drives the cam 18 to squeeze the driven block 19 through the rotating shaft 17, and then the driven block 19 squeezes and pushes the scraping teeth 15 at one end of the sliding plate 14, so that the sliding plate 14 drives the scraping teeth 15 to reciprocate, so that the scraping teeth 15 scrape the sand accumulated on the top of the support plate 11, and then the sand is discharged to the third discharge pipe 12 through the support plate 11, and the second guide plate 25 under the support plate 11 blocks and guides the sand, and then the first screen plate 3 screens the diverted sand again, and then the screened sand is respectively discharged from the sand screening box 1 through the first discharge pipe 4 and the second discharge pipe 5.

[0034] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A sand screening machine for construction engineering, comprising a sand screening box (1), characterized in that: A sand leakage mesh plate (2) is installed inside the sand screening box (1) and located in the middle and upper part; a sand-dispersing assembly for stirring sand is installed inside the sand screening box (1) and located above the sand leakage mesh plate (2); sand screening assemblies for screening sand are installed on both sides of the sand screening box (1); a prying assembly for preventing blockage is installed on both sides of the sand screening box (1) and located on one side of the sand screening assembly; the dispersing assembly includes a rotating rod (6) that runs through the sand screening box (1) and is used to drive; a first motor (7) for providing power is installed on one side of the sand screening box (1) and located at one end of the rotating rod (6); and a balancing motor (8) is installed on the outside of the rotating rod (6). A plurality of evenly arranged breaking rods (8), one end of each breaking rod (8) being provided with a sweeping brush (9) for cleaning, the sand screening component comprising second sieve plates (10) respectively installed on both sides of the interior of the sand screening box (1), a support plate (11) being connected between the bottom of the second sieve plate (10) and the interior of the sand screening box (1), third discharge pipes (12) for discharging materials being respectively installed on both sides of the exterior of the sand screening box (1), the raking component comprising guide blocks (13) installed on both sides of the interior of the sand screening box (1) and located below the second sieve plate (10), a sliding plate (14) for connection being passed through the interior of the guide blocks (13); A first sieve plate (3) is installed at the bottom of the inner side of the sand screening box (1), a first discharge pipe (4) is installed at the bottom of the sand screening box (1) and located on one side of the first sieve plate (3), a second discharge pipe (5) is installed at the bottom of the sand screening box (1) and located on the other side of the first sieve plate (3), the first sieve plate (3) is arranged obliquely, two groups of sand screening components are arranged up and down, a material picking tooth (15) is installed at the bottom of the sliding plate (14) and near one end, the sliding plate (14) is slidably connected to the guide block (13), the cross section of the guide block (13) is triangular, the aperture of the second sieve plate (10) above is smaller than the aperture of the second sieve plate (10) below, the angle between the support plate (11) and the second sieve plate (10) is an acute angle, the rotating rod (6) is rotatably connected to the sand screening box (1), and the cross section of the breaking rod (8) is L-shaped.

2. A sand screening machine for construction engineering according to claim 1, characterized in that: The scraping assembly also includes a support frame (16) respectively installed on both sides of the outside of the sand screening box (1), the support frame (16) is penetrated by a rotating shaft (17) for driving, a second motor (171) for providing power is installed at one end of the rotating shaft (17), a cam (18) for pushing is set on the outside of the rotating shaft (17), a follower block (19) is connected to one end of the sliding plate (14), the cam (18) is fixedly connected to the rotating shaft (17), and the end section of the follower block (19) is arc-shaped.

3. A sand screening machine for construction engineering according to claim 2, characterized in that: The prying assembly also includes a movable groove (20) formed at the bottom of the inner side of the guide block (13); a guide rod (21) for limiting position is installed inside the movable groove (20); a spring (22) for pushing is sleeved on the outer side of the guide rod (21); a driving block (23) is located on the outer side of the guide rod (21) and at one end of the spring (22); the guide rod (21) passes through the driving block (23) and is slidably connected thereto; and two ends of the spring (22) are respectively fixedly connected to the movable groove (20) and the driving block (23).

4. A sand screening machine for construction engineering according to claim 1, characterized in that: A first guide plate (24) is installed on one side of the interior of the sand screening box (1) and below the sand leakage mesh plate (2), and a plurality of evenly arranged second guide plates (25) are installed at the bottom of the support plate (11), and the lengths of the plurality of second guide plates (25) increase sequentially from top to bottom.

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