Sand screening device for construction engineering

Abstract

The utility model discloses a sand screening device for construction engineering, which relates to the technical field of construction engineering and comprises a sand screening box, the front surface of the sand screening box is hinged with a box door, the upper surface of the sand screening box is fixedly communicated with two symmetrical feeding cylinders, the interiors of the two side surfaces of the sand screening box are respectively provided with a rectangular groove and a material flowing groove, and the material flowing grooves are positioned below the rectangular grooves; two screens are slidably connected into the sand screening box, the faces, close to each other, of the two screens make contact, and the faces, away from each other, of the two screens are inserted into the two rectangular grooves correspondingly. Through cooperation of the driving assembly, the material flowing groove and the inverted-V-shaped material flowing plate, after sand screening is completed, the two screens can be driven to move in the direction away from the sand screening box, sundries on the screens are automatically scraped off, and the scraped sundries can fall onto the inverted-V-shaped material flowing plate and flow out of the sand screening box along the inverted-V-shaped material flowing plate and the material flowing groove; therefore, the purpose of conveniently cleaning the sundries on the screen is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, in particular to a sand screening device 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. In the process of construction engineering, a large amount of sand is needed. However, sand will inevitably be mixed with weeds, stones and other debris during the mining process, so a sand screening device is needed to screen the sand before using the sieve.

[0003] According to the patent with application number 202122618368.2, a high-efficiency sand screening device for construction projects is disclosed, including a sand screening box, a second screen and a receiving tray. A processing groove is provided on the top of the sand screening box, a rotating shaft is installed in the processing groove through a bearing, a stirring roller is provided on the periphery of the rotating shaft, and a first screen is installed at the discharge end of the processing groove by setting a bracket.

[0004] The above scheme has a simple structure and is easy to operate, and has a good sand screening effect, and is suitable for wide promotion and use. However, after the sand screening is completed, it is not convenient to clean the debris on the screen. For this reason, we provide a sand screening device for construction projects to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to make up for the deficiencies of the prior art and provide a sand screening device for construction engineering.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sand screening device for construction projects, comprising a sand screening box, a box door is hinged on the front of the sand screening box, two symmetrical feeding barrels are fixedly connected to the upper surface of the sand screening box, rectangular grooves and flow grooves are opened inside the two side surfaces of the sand screening box, and the flow grooves are located below the rectangular grooves, two screens are slidably connected inside the sand screening box, the two sides of the two screens are in contact with each other, and the two sides of the two screens are respectively inserted into the inside of the two rectangular grooves, an inverted V-shaped flow plate is fixedly connected to the inside of the sand screening box, and the two side surfaces of the inverted V-shaped flow plate are respectively inserted into the inside of the two flow grooves, a driving assembly is arranged above the inverted V-shaped flow plate, and a vibration assembly is arranged inside the sand screening box.

[0007] Furthermore, collecting boxes are provided on both sides of the sand screening box, and the mutually adjacent sides of the two collecting boxes are in contact with the two side surfaces of the sand screening box respectively, and the two collecting boxes are respectively located below the two material flow troughs.

[0008] Furthermore, the driving assembly includes a bidirectional screw rod rotatably connected to the inside of the sand screening box, a motor is installed on the right side of the sand screening box, the output end of the motor is fixedly connected to the right end of the bidirectional screw rod, and the outer surface of the bidirectional screw rod is threadedly connected to two symmetrical threaded plates, and the two threaded plates are both slidably connected to the inside of the sand screening box.

[0009] Furthermore, right-angle scrapers are fixedly connected to both side walls of the sand screening box, and the bottom surfaces of the two right-angle scrapers are in contact with the upper surfaces of the two screens respectively.

[0010] Furthermore, the vibration assembly includes two vibrators, which are respectively installed on the bottom surfaces of the two screens. The upper surfaces of the two threaded plates are fixedly connected to two piston cylinders, and the interiors of the four piston cylinders are slidably connected to piston rods, and the top ends of the piston rods penetrate the piston cylinders and are fixedly connected to the bottom surfaces of the screens.

[0011] Furthermore, the bottom ends of the four piston rods are fixedly connected to first springs, and the ends of the four first springs away from the four piston rods are fixedly connected to the inner bottom walls of the four piston cylinders respectively.

[0012] Furthermore, the interior of the two rectangular grooves are slidably connected with a support plate, the upper surfaces of the two support plates are respectively in contact with the bottom surfaces of the two screens, the bottom surfaces of the two support plates are fixedly connected with two second springs, and the end of the second spring away from the support plate is fixedly connected to the inner wall of the rectangular groove.

[0013] Compared with the prior art, the sand screening device for construction engineering has the following beneficial effects:

[0014] 1. The utility model can drive the two screens to move away from the sand screening box and automatically scrape off the debris on the screens through the cooperation between the driving assembly, the flow trough and the inverted V-shaped flow plate after the sand screening is completed. The scraped debris will fall onto the inverted V-shaped flow plate and flow out of the sand screening box along the inverted V-shaped flow plate and the flow trough, thereby achieving the purpose of facilitating the cleaning of the debris on the screens.

[0015] 2. The utility model can drive the screen to vibrate through the driving component during the sand screening process, thereby not only improving the sand screening efficiency but also preventing the screen from being blocked by debris. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 This is a front view of the hidden door of the utility model;

[0018] Figure 3It is a three-dimensional structural schematic diagram of the screen, threaded plate and vibration assembly of the utility model;

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the piston rod and the first spring of the utility model.

[0020] In the figure: 1. sand screening box; 2. box door; 3. feeding cylinder; 4. rectangular groove; 5. screen; 6. driving assembly; 601. bidirectional screw rod; 602. motor; 603. threaded plate; 604. right-angle scraper; 7. vibration assembly; 701. piston cylinder; 702. piston rod; 703. first spring; 704. vibrator; 705. support plate; 706. second spring; 8. flow trough; 9. inverted V-shaped flow plate; 10. collection box. DETAILED DESCRIPTION

[0021] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0022] The present embodiment provides a sand screening device for construction projects, which is used to screen out weeds, stones and other debris mixed in the sand. Through the provided driving assembly 6, the flow trough 8 and the inverted V-shaped flow plate 9, after the sand screening is completed, the two screens 5 can be driven to move away from the sand screening box 1 and the debris on the screens 5 can be automatically scraped off. The scraped debris will flow out of the sand screening box 1 along the inverted V-shaped flow plate 9 and the flow trough 8, thereby achieving the purpose of facilitating the cleaning of the debris on the screens 5.

[0023] See also Figure 1 to Figure 4 A sand screening device for construction engineering comprises a sand screening box 1, a box door 2 is hinged on the front of the sand screening box 1, two symmetrical feeding cylinders 3 are fixedly connected to the upper surface of the sand screening box 1, and the sand to be screened can be added to the interior of the sand screening box 1 through the feeding cylinders 3. Rectangular grooves 4 and flow grooves 8 are opened inside the two sides of the sand screening box 1, and the flow grooves 8 are located below the rectangular grooves 4. Two screens 5 are slidably connected inside the sand screening box 1, and the sides of the two screens 5 that are close to each other are in contact, and the sides of the two screens 5 that are away from each other are respectively inserted into the inside of the two rectangular grooves 4. An inverted V-shaped flow plate 9 is fixedly connected inside, and the two side surfaces of the inverted V-shaped flow plate 9 are respectively inserted into the two flow troughs 8. Collecting boxes 10 are provided on both sides of the sand screening box 1. The two collecting boxes 10, which are close to each other, are respectively in contact with the two side surfaces of the sand screening box 1. The two collecting boxes 10 are respectively located below the two flow troughs 8. The sand added to the inside of the sand screening box 1 will fall onto the two screens 5. The two screens 5 can screen the sand. The sand will pass through the screens 5 and fall onto the inverted V-shaped flow plate 9, and then flow along the inverted V-shaped flow plate 9 and the flow trough 8 to the inside of the collecting box 10.

[0024] A driving assembly 6 is arranged above the inverted V-shaped flow plate 9, and the driving assembly 6 includes a bidirectional screw rod 601 rotatably connected to the inside of the sand screening box 1. A motor 602 is installed on the right side of the sand screening box 1. The output end of the motor 602 is fixedly connected to the right end of the bidirectional screw rod 601. Two symmetrical threaded plates 603 are threadedly connected to the outer surface of the bidirectional screw rod 601. Both threaded plates 603 are slidably connected to the inside of the sand screening box 1. Start the motor 602. When the motor 602 drives the bidirectional screw rod 601 to rotate clockwise, the two threaded plates 603 can be driven to move away from each other. When the motor 602 drives the bidirectional screw rod 601 to rotate counterclockwise, the two threaded plates 603 can be driven to move toward each other.

[0025] Both side walls of the sand screening box 1 are fixedly connected with right-angle scrapers 604, and the bottom surfaces of the two right-angle scrapers 604 are respectively in contact with the upper surfaces of the two sieves 5. The two threaded plates 603 move in the direction away from each other, which can drive the two sieves 5 to move in the direction away from the sand screening box 1. During the movement of the two sieves 5, the two right-angle scrapers 604 will scrape off the debris on the sieves 5, and the scraped debris will fall onto the inverted V-shaped flow plate 9 and flow along the inverted V-shaped flow plate 9 and the flow trough 8 to the inside of the external container, thereby achieving the purpose of facilitating the cleaning of the debris on the sieves 5.

[0026] A vibration assembly 7 is provided inside the sand screening box 1, and the vibration assembly 7 includes two vibrators 704, and the two vibrators 704 are respectively installed on the bottom surfaces of the two screens 5. The upper surfaces of the two threaded plates 603 are fixedly connected to two piston cylinders 701, and the interiors of the four piston cylinders 701 are slidably connected to piston rods 702, and the top ends of the piston rods 702 penetrate the piston cylinders 701 and are fixedly connected to the bottom surfaces of the screens 5, and each screen 5 corresponds to two piston rods 702.

[0027] The bottom ends of the four piston rods 702 are fixedly connected with a first spring 703, and the ends of the four first springs 703 away from the four piston rods 702 are fixedly connected to the inner bottom walls of the four piston cylinders 701 respectively. The interiors of the two rectangular grooves 4 are slidably connected with support plates 705, and the upper surfaces of the two support plates 705 are in contact with the bottom surfaces of the two screens 5 respectively. The bottom surfaces of the two support plates 705 are fixedly connected with two second springs 706, and the ends of the second springs 706 away from the support plates 705 are fixedly connected to the inner walls of the rectangular grooves 4. The vibrator 704 can be started during the sand screening process. Under the action of the piston cylinder 701, the piston rod 702, the first spring 703, the support plate 705 and the second spring 706, the vibrator 704 can drive the screen 5 to vibrate, which can not only improve the sand screening efficiency, but also prevent debris from clogging the screen 5.

[0028] Working principle: When the utility model is in use, firstly, sand is added into the sand screening box 1 through the feeding cylinder 3, and the sand added into the sand screening box 1 will fall onto the two screens 5, and the two screens 5 can screen the sand, and the sand will fall onto the inverted V-shaped flow plate 9 through the screen 5, and then flow along the inverted V-shaped flow plate 9 and the flow trough 8 to the inside of the collecting box 10, and the debris will remain on the screen 5, and then the vibrator 704 is started, and under the action of the piston cylinder 701, the piston rod 702, the first spring 703, the support plate 705 and the second spring 706, the vibrator 704 can drive the screen 5 to vibrate, thereby not only improving the sand screening efficiency, but also preventing the debris from clogging the screen 5. After the sand screening is completed, the collecting box 10 is removed from both sides of the sand screening box 1 and a new container is placed thereon, and then the motor 602 is started so that the motor 602 drives the bidirectional screw rod 601 to rotate clockwise. The clockwise rotation of the bidirectional screw rod 601 can drive the two threaded plates 603 to move away from each other, and the two threaded plates 603 can drive the two screens 5 to move away from the sand screening box 1. During the movement of the two screens 5, the two right-angle scrapers 604 will scrape off the debris on the screens 5, and the scraped debris will fall onto the inverted V-shaped flow plate 9 and flow along the inverted V-shaped flow plate 9 and the flow trough 8 to the inside of the external container, thereby achieving the purpose of facilitating the cleaning of the debris on the screens 5.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sand screening device for construction engineering, comprising a sand screening box (1), characterized in that: The front of the sand screening box (1) is hinged with a box door (2), and the upper surface of the sand screening box (1) is fixedly connected to two symmetrical feeding cylinders (3). The inside of the two side surfaces of the sand screening box (1) are provided with rectangular grooves (4) and material flow grooves (8), and the material flow grooves (8) are located below the rectangular grooves (4). The inside of the sand screening box (1) is slidably connected with two screens (5), and the sides of the two screens (5) that are close to each other are in contact, and the sides of the two screens (5) that are away from each other are respectively inserted into the inside of the two rectangular grooves (4). The inside of the sand screening box (1) is fixedly connected with an inverted V-shaped material flow plate (9), and the two side surfaces of the inverted V-shaped material flow plate (9) are respectively inserted into the inside of the two material flow grooves (8). A driving component (6) is arranged above the inverted V-shaped material flow plate (9), and a vibration component (7) is arranged inside the sand screening box (1).

2. A sand screening device for construction engineering according to claim 1, characterized in that: Collection boxes (10) are provided on both sides of the sand screening box (1), and the mutually adjacent sides of the two collection boxes (10) are in contact with the two side surfaces of the sand screening box (1), respectively. The two collection boxes (10) are respectively located below the two material flow troughs (8).

3. A sand screening device for construction engineering according to claim 1, characterized in that: The driving assembly (6) includes a bidirectional screw rod (601) rotatably connected to the inside of the sand screening box (1), a motor (602) is installed on the right side of the sand screening box (1), the output end of the motor (602) is fixedly connected to the right end of the bidirectional screw rod (601), and the outer surface of the bidirectional screw rod (601) is threadedly connected to two symmetrical threaded plates (603), and the two threaded plates (603) are both slidably connected to the inside of the sand screening box (1).

4. A sand screening device for construction engineering according to claim 1, characterized in that: The two side walls of the sand screening box (1) are fixedly connected with right-angle scrapers (604), and the bottom surfaces of the two right-angle scrapers (604) are in contact with the upper surfaces of the two screens (5) respectively.

5. A sand screening device for construction engineering according to claim 3, characterized in that: The vibration assembly (7) comprises two vibrators (704), the two vibrators (704) are respectively mounted on the bottom surfaces of the two sieves (5), the upper surfaces of the two threaded plates (603) are fixedly connected to two piston cylinders (701), the interiors of the four piston cylinders (701) are slidably connected to piston rods (702), and the top ends of the piston rods (702) penetrate the piston cylinders (701) and are fixedly connected to the bottom surfaces of the sieves (5).

6. A sand screening device for construction engineering according to claim 5, characterized in that: The bottom ends of the four piston rods (702) are fixedly connected to the first springs (703), and the ends of the four first springs (703) away from the four piston rods (702) are fixedly connected to the inner bottom walls of the four piston cylinders (701) respectively.

7. A sand screening device for construction engineering according to claim 1, characterized in that: The interiors of the two rectangular grooves (4) are slidably connected with support plates (705), the upper surfaces of the two support plates (705) are in contact with the bottom surfaces of the two screens (5) respectively, the bottom surfaces of the two support plates (705) are fixedly connected with two second springs (706), and one end of the second spring (706) away from the support plate (705) is fixedly connected to the inner wall of the rectangular groove (4).

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