Sand screening device for civil engineering

Abstract

The utility model relates to a sand screening device for civil engineering, which comprises a sand screening box, a grinding unit is arranged at the top of the sand screening box, a discharge port is arranged at the bottom of the grinding unit, a screening plate is arranged in the sand screening box, an auxiliary mechanism is arranged between the sand screening box and the grinding unit, and the auxiliary mechanism comprises a shell. And a shell is fixedly mounted on the inner top wall of the sand screening box. According to the sand screening device for civil engineering, after entering the shell, ground gravel can be divided into two parts by a partition plate to move downwards, the descending speed of the gravel can be slowed down due to flow guiding of a first guide plate, a second guide plate and a third guide plate when the gravel moves downwards, and when the gravel moves to a discharging opening, a motor drives a rotating rod to rotate, so that the gravel is conveyed to the discharging opening; and the gravel is influenced and guided by the fourth guide plate in the rotating process and flows to all positions of the screening plate, so that the gravel is prevented from being accumulated at the same place, and the design can also control the discharging speed.

Description

Technical Field

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

[0002] Sand screening machine is a civil engineering machinery that separates and classifies sand and stone particles to meet the needs of different construction projects for different sand and soil. It is used in various civil engineering construction sites. Sand and soil, as a construction raw material, are frequently used in civil engineering construction sites.

[0003] After searching, for example, a utility model patent with Chinese announcement number CN221046157U discloses a sand screening machine, which drives the rotating rod to move upward through a driving assembly, so that the moving blocks at one end of the two filter plates move toward each other, and a gap is generated between the filter plate and the sand screening frame, so that impurities slide out of the gap to complete the automatic cleaning of the filter plate. On the one hand, it reduces the work of the staff, and on the other hand, it improves the cleaning efficiency of the filter plate. However, when the sand in the device is ground by the grinding unit and falls onto the filter plate, since the grinding unit is set at the middle top of the filter plate, most of the sand particles will fall to the middle of the filter plate, causing sand accumulation to affect the screening effect. Therefore, a sand screening device for civil engineering is proposed to solve the above problem. Utility Model Content

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the utility model provides a sand screening device for civil engineering, which has the advantages of preventing a large amount of sand from accumulating at one position of the screen plate when feeding sand, and solves the problem that sand accumulation occurs when feeding in the comparative device, affecting the screening effect.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned object, the utility model provides the following technical solution: a sand screening device for civil engineering, comprising a sand screening box, a grinding unit provided on the top of the sand screening box, a discharge port provided at the bottom of the grinding unit, a screening plate provided inside the sand screening box, and an auxiliary mechanism provided between the sand screening box and the grinding unit;

[0008] The auxiliary mechanism includes a shell, the inner top wall of the sand screening box is fixedly installed with the shell, the interior of the shell is fixedly installed with a partition, the outside of the partition is installed with a first guide plate, the outside of the partition is installed with a second guide plate, the outside of the partition is installed with a third guide plate, the bottom of the partition is fixedly installed with two mounting plates, the rear side of the mounting plate is fixedly installed with a motor, a rotating rod is rotatably connected between the two mounting plates, and the outside of the rotating rod is fixedly installed with two fourth guide plates.

[0009] Furthermore, a connecting plate is fixedly installed between the two fourth guide plates, and a triangular plate is fixedly installed on the top wall of the partition.

[0010] The sand screening mechanism of the utility model can prevent sand and gravel from accumulating on the top of the partition plate by arranging the triangular plate, so as to facilitate the downward flow of sand and gravel.

[0011] Furthermore, a feed opening is provided on the bottom wall of the shell, and the fourth guide plate extends to the outside of the shell through the feed opening.

[0012] Furthermore, the first guide plate, the second guide plate and the third guide plate are arranged sequentially from top to bottom, and the sizes of the first guide plate, the second guide plate and the third guide plate decrease sequentially from top to bottom.

[0013] In the sand screening mechanism of the present invention, the first guide plate, the second guide plate and the third guide plate are all inclined and tilted downward. Through the guidance of the first guide plate, the second guide plate and the third guide plate, the sand and gravel will slow down their descending speed.

[0014] Furthermore, a vibration motor is provided at the bottom of the screening plate, and a collection box is provided on the inner bottom wall of the sand screening box.

[0015] The sand screening mechanism of the utility model can vibrate and screen the sand and gravel on the screening plate by arranging a vibration motor, thereby improving the screening efficiency.

[0016] Furthermore, a box door is provided on the outside of the sand screening box, and a feed port is provided on the top wall of the shell, and the feed port is connected to the discharge port.

[0017] (3) Beneficial effects

[0018] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0019] The sand screening device for civil engineering uses a partition plate to separate the ground sand and gravel into two parts after entering the shell, and then moves downward. When moving downward, the sand and gravel are guided by the first guide plate, the second guide plate and the third guide plate, and the sand and gravel will slow down its descent speed. When it moves to the discharge port, the motor drives the rotating rod to rotate, thereby driving the fourth guide plate to rotate. The sand and gravel are affected and guided by the rotating fourth guide plate, and will flow to various places on the screening plate, thereby preventing the sand and gravel from accumulating in the same place. The design can also control the discharge speed to prevent the discharge from being too fast and affecting the screening. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a front cross-sectional view of the utility model;

[0021] Figure 2 This is a side sectional view of the local structure of the utility model;

[0022] Figure 3 It is the front view of the utility model.

[0023] In the figure: 1 sand screening box, 2 grinding unit, 3 discharge port, 4 screening plate, 5 auxiliary mechanism, 501 shell, 502 partition, 503 first guide plate, 504 second guide plate, 505 third guide plate, 506 mounting plate, 507 motor, 508 rotating rod, 509 fourth guide plate, 6 triangular plate, 7 vibration motor, 8 collection box. DETAILED DESCRIPTION

[0024] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-3 In this embodiment, a sand screening device for civil engineering includes a sand screening box 1, a grinding unit 2 is arranged on the top of the sand screening box 1, a discharge port 3 is arranged at the bottom of the grinding unit 2, a screening plate 4 is arranged inside the sand screening box 1, and an auxiliary mechanism 5 is arranged between the sand screening box 1 and the grinding unit 2.

[0026] Specifically, the grinding unit 1 in this embodiment has the same structure as the grinding unit 1 in the document mentioned in the background technology, and specifically includes a grinding shell and two grinding rollers. The motor drives the two grinding rollers to rotate towards each other, and the ground molding sand falls from the discharge port 3 and enters the auxiliary mechanism 5 in the processing box 1. This is a disclosed technology.

[0027] Specifically, the auxiliary mechanism 5 includes a shell 501, the inner top wall of the sand screening box 1 is fixedly installed with the shell 501, the interior of the shell 501 is fixedly installed with a partition 502, the outside of the partition 502 is installed with a first guide plate 503, the outside of the partition 502 is installed with a second guide plate 504, the outside of the partition 502 is installed with a third guide plate 505, the bottom of the partition 502 is fixedly installed with two mounting plates 506, the rear side of the rear mounting plate 506 is fixedly installed with a motor 507, the two mounting plates 506 are rotatably connected with a rotating rod 508, and the outside of the rotating rod 508 is fixedly installed with two third guide plates 506. Four guide plates 509. When the ground sand and gravel enter the shell 501, they will be divided into two parts by the partition 502 and move downward. When moving downward, they will be guided by the first guide plate 503, the second guide plate 504 and the third guide plate 505, and the sand and gravel will slow down its descending speed. When it moves to the discharge port, the motor 507 drives the rotating rod 508 to rotate, thereby driving the fourth guide plate 509 to rotate. The sand and gravel are affected and guided by the rotating fourth guide plate 509 and will flow to various places on the screening plate 4, thereby preventing the sand and gravel from accumulating in the same place. This design can also control the discharge speed to prevent the discharge from being too fast and affecting the screening.

[0028] Specifically, the first guide plate 503, the second guide plate 504 and the third guide plate 505 are arranged in sequence from top to bottom, and the sizes of the first guide plate 503, the second guide plate 504 and the third guide plate 505 decrease in sequence from top to bottom. The first guide plate 503, the second guide plate 504 and the third guide plate 505 are all arranged at an angle and are all inclined downward. Through the guidance of the first guide plate 503, the second guide plate 504 and the third guide plate 505, the sand and gravel will slow down the descending speed.

[0029] Specifically, a vibration motor 7 is provided at the bottom of the screening plate 4, and a collecting box 8 is provided on the inner bottom wall of the sand screening box 1. The qualified sand and gravel screened out are temporarily stored in the collecting box 8.

[0030] To sum up, in the sand screening device for civil engineering, when the ground sand and gravel enter the shell 501, they will be divided into two parts by the partition 502 and move downward. When moving downward, they will be guided by the first guide plate 503, the second guide plate 504 and the third guide plate 505, and the sand and gravel will slow down the descending speed. When moving to the discharge port, the motor 507 drives the rotating rod 508 to rotate, thereby driving the fourth guide plate 509 to rotate. The sand and gravel are affected and guided by the rotating fourth guide plate 509 and will flow to various places of the screening plate 4, thereby preventing the sand and gravel from accumulating in the same place. This design can also control the discharge speed to prevent the discharge from being too fast and affecting the screening. It solves the problem that when the sand and soil in the comparative device are ground by the grinding unit and fall onto the filter plate, since the grinding unit is set at the middle top of the filter plate, most of the sand particles will fall to the middle of the filter plate, thereby causing sand and soil to accumulate and affect the screening effect.

[0031] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0032] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sand screening device for civil engineering, comprising a sand screening box (1), characterized in that: A grinding unit (2) is provided on the top of the sand screening box (1), a discharge port (3) is provided at the bottom of the grinding unit (2), a screening plate (4) is provided inside the sand screening box (1), and an auxiliary mechanism (5) is provided between the sand screening box (1) and the grinding unit (2); The auxiliary mechanism (5) includes a shell (501), the inner top wall of the sand screening box (1) is fixedly mounted with the shell (501), the interior of the shell (501) is fixedly mounted with a partition (502), the exterior of the partition (502) is mounted with a first guide plate (503), the exterior of the partition (502) is mounted with a second guide plate (504), the exterior of the partition (502) is mounted with a third guide plate (505), the bottom of the partition (502) is fixedly mounted with two mounting plates (506), the rear side of the rear mounting plate (506) is fixedly mounted with a motor (507), a rotating rod (508) is rotatably connected between the two mounting plates (506), and the exterior of the rotating rod (508) is fixedly mounted with two fourth guide plates (509).

2. A sand screening device for civil engineering according to claim 1, characterized in that: A connecting plate is fixedly installed between the two fourth guide plates (509), and a triangular plate (6) is fixedly installed on the top wall of the partition plate (502).

3. The sand screening device for civil engineering according to claim 1, characterized in that: A feed opening is provided on the bottom wall of the shell (501), and the fourth guide plate (509) extends to the outside of the shell (501) through the feed opening.

4. A sand screening device for civil engineering according to claim 1, characterized in that: The first guide plate (503), the second guide plate (504) and the third guide plate (505) are arranged in sequence from top to bottom, and the sizes of the first guide plate (503), the second guide plate (504) and the third guide plate (505) decrease in sequence from top to bottom.

5. The sand screening device for civil engineering according to claim 1, characterized in that: A vibration motor (7) is provided at the bottom of the screening plate (4), and a collection box (8) is provided on the inner bottom wall of the sand screening box (1).

6. The sand screening device for civil engineering according to claim 1, characterized in that: The outside of the sand screening box (1) is provided with a box door, and the top wall of the shell (501) is provided with a feed port, which is connected to the discharge port (3).

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