Coarse sand screening and grading device

Abstract

The utility model belongs to the technical field of coarse sand screening, and particularly relates to a coarse sand screening and grading device which is characterized in that a conveying pipe is installed below an upper connecting ring, the conveying pipe is connected with the connecting ring through a locking buckle, a base plate is assembled below the conveying pipe, an upper fixing plate is assembled above the base plate, and a lower fixing plate is assembled above the upper fixing plate. The upper fixing disc is connected with the bottom disc through a supporting rod, eight sets of transverse rods are installed on the surface of the upper fixing disc, the eight sets of transverse rods are evenly distributed on the surface of the upper fixing disc, three sets of micro motors are assembled below the bottom disc, an air cylinder base is assembled on one side of the bottom disc, and a lifting air cylinder is installed above the air cylinder base; the eight sets of cross rods are driven by the lifting air cylinder at the bottom to repeatedly move up and down, sand is prevented from being blocked and accumulated in the conveying process, the conveying efficiency is improved, meanwhile, four sets of locking buckles are additionally arranged at the top of the conveying pipe, the connecting position of the conveying pipe and the top is reinforced, the load of the conveying pipe is reduced, and the service life of the device is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of coarse sand screening, specifically a coarse sand screening and grading device. Background Art

[0002] Sand is also ground from stones or used as building materials. However, sand grains are polished by the forces of nature over thousands of years, extremely fine and soft, suitable for being filled into some soft supplies, or used as building decoration materials, or for aquaculture. It is one of the main components of concrete and mortar, and is divided into fine sand, medium sand and coarse sand.

[0003] In the existing technology, during the use of coarse sand, screening operations are usually required and need to be processed by mechanical equipment. Among them, screening and grading devices are usually used for screening. The application range of screening equipment is relatively wide. The screening and grading device usually sends a large amount of sand into a high-frequency vibrating filter screen and performs grading operations through vibration filtration. It usually consists of a frame, a motor, a sieve tray, a filter screen, a conveying pipe, a discharge port, and a storage tank. The motor drives the sieve tray to vibrate, thereby driving the sand on the surface of the sieve tray to vibrate, and cooperates with the filter screen to complete the screening and grading operation of the sand on the surface, thus completing the processing of the sand.

[0004] In the current existing technology, the screening and grading devices on the market usually operate with a motor installed on the bottom side, driving the sieve tray to vibrate, thereby driving the sand on the surface of the sieve tray to vibrate, and cooperating with the filter screen to complete the screening and grading operation of the sand on the surface. However, during the process of sand screening and grading, when a large amount of screened and graded sand passes through the conveying pipe, blockages often occur. A large amount of sand will adhere to the inner wall of the conveying pipe and accumulate, and cannot be sent to the lower discharge port, affecting work efficiency. Therefore, a coarse sand screening and grading device is proposed for the above problems. Summary of the Utility Model

[0005] In order to make up for the deficiencies of the existing technology and address the problems existing in the existing equipment, the utility model proposes a coarse sand screening and grading device.

[0006] The technical solution adopted by the utility model to solve its technical problems is a coarse sand screening and grading device, including an upper connecting ring. A conveying pipe is installed below the upper connecting ring. The conveying pipe and the connecting ring are connected by a locking buckle. A chassis is assembled below the conveying pipe. An upper fixing plate is assembled above the chassis. The upper fixing plate and the chassis are connected by a support rod. Eight cross bars are installed on the surface of the upper fixing plate, and the eight cross bars are evenly distributed on the surface of the upper fixing plate. Three micro motors are assembled below the chassis. A cylinder base is assembled on one side of the chassis. A lifting cylinder is installed above the cylinder base. A movable air rod is assembled in the middle of the lifting cylinder and the cylinder base.

[0007] Preferably, a fixed connection block is installed on the back of the lifting cylinder. The other side of the fixed connection block is installed on the surface of the back slider. A back fixing plate is installed on the surface of the side back plate. A slide rail is assembled on the surface of the back fixing plate. The back slider is installed on the surface of the slide rail. The position of the auxiliary dredging device below can be adjusted through the slider.

[0008] Preferably, a vibrating plate is installed above the back fixing plate. An external bracket is installed outside the vibrating plate. A filter screen is assembled in the middle of the external bracket. Through the function of the filter screen, the sand that does not meet the requirements is isolated.

[0009] Preferably, a motor base is installed on the top surface of the back fixing plate. A vibrating motor is installed above the motor base. A side back plate is installed on the other side of the back fixing plate. Through the operation of the motor above, the vibrating plate is driven to operate.

[0010] Preferably, side columns are installed on both sides of the side back plate. A workbench is installed on the middle surface of the side back plate. A chassis is assembled below the workbench. Four groups of foot pads are installed below the chassis. Through the four groups of foot pads below, a buffering and protective effect is exerted on the device.

[0011] Preferably, a discharge port is opened in the middle of the workbench. A conical hopper is installed below the discharge port. A discharge conveying pipe is installed at the interface of the conical hopper. A storage tank is assembled below the discharge conveying pipe. Four groups of universal wheels are assembled below the storage tank.

[0012] The beneficial effects of the present utility model are as follows:

[0013] The present utility model provides a coarse sand screening and grading device. In order to solve the problem that during the process of coarse sand screening and grading, when a large amount of screened and graded sand passes through the conveying pipe, blockages often occur, a large amount of sand will adhere to the inner wall of the conveying pipe and accumulate, and it cannot be sent into the discharge port below, affecting the working efficiency. By installing a set of auxiliary dredging devices below the conveying pipe, when a large amount of sand passes through the conveying pipe, the eight cross bars are driven by the lifting cylinder at the bottom to move up and down repeatedly, preventing the sand from clogging and accumulating during transportation, improving the transportation efficiency. At the same time, four locking clamps are additionally installed at the top of the conveying pipe to reinforce the connection between the conveying pipe and the top, reducing the load on the conveying pipe and extending the service life of the device. Description of the Drawings

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0015] Figure 1 Is an isometric view of the whole;

[0016] Figure 2 Is an isometric view of the bottom structure;

[0017] Figure 3 Is an isometric view of the internal structure;

[0018] Figure 4 Is an isometric view of the lifting structure;

[0019] Figure 5 Is an isometric view of the dredging structure;

[0020] In the figure: 1, vibration motor; 2, external support; 3, filter screen; 4, side back plate; 5, side column; 6, discharge conveying pipe; 7, storage bin; 8, universal wheel; 11, foot pad; 12, chassis; 13, workbench; 14, conveying pipe; 15, vibration plate; 16, motor base; 17, conical hopper; 18, discharge port; 20, locking buckle; 21, upper connecting ring; 22, slide rail; 23, back fixing plate; 24, fixed connecting block; 25, back slider; 26, chassis; 27, cross bar; 28, upper fixed plate; 29, movable air rod; 30, lifting cylinder; 31, cylinder base; 32, micro motor; 33, support rod. Detailed implementation manners

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0022] Please refer to Figures 1-5As shown in the figure, the coarse sand screening and grading device includes an upper connecting ring 21. A conveying pipe 14 is installed below the upper connecting ring 21. The conveying pipe 14 and the upper connecting ring 21 are connected by a locking buckle 20. A chassis 26 is assembled below the conveying pipe 14. An upper fixing plate 28 is assembled above the chassis 26. The upper fixing plate 28 and the chassis 26 are connected by a support rod 33. Eight cross bars 27 are installed on the surface of the upper fixing plate 28. The eight cross bars 27 are evenly distributed on the surface of the upper fixing plate 28. Three micro motors 32 are assembled below the chassis 26. A cylinder base 31 is assembled on one side of the chassis 26. A lifting cylinder 30 is installed above the cylinder base 31. A movable air rod 29 is assembled in the middle of the lifting cylinder 30 and the cylinder base 31. A fixed connecting block 24 is installed on the back of the lifting cylinder 30. The other side of the fixed connecting block 24 is installed on the surface of a back slider 25. A back fixing plate 23 is installed on the surface of a side back plate 4. A slide rail 22 is assembled on the surface of the back fixing plate 23. The back slider 25 is installed on the surface of the slide rail 22.

[0023] During operation, in the current existing technology, the screening and grading devices on the market usually operate with a vibration motor 1 installed at the top, driving a vibration plate 15 to vibrate, thereby driving the sand on the surface of the vibration plate 15 to vibrate. By cooperating with a filter screen 3, the screening and grading operation of the surface sand is completed. However, during the process of sand screening and grading, when a large amount of screened and graded sand passes through the conveying pipe 14, blockages often occur. A large amount of sand will adhere to the inner wall of the conveying pipe 14 and accumulate, unable to be sent into the lower discharge port 18, affecting the work efficiency. Therefore, in response to the above problems, a coarse sand screening and grading device is proposed. During the coarse sand screening and grading operation, the eight cross bars 27 are driven by the lifting cylinder 30 at the bottom to move up and down repeatedly, preventing sand from clogging and accumulating during transportation, improving the transportation efficiency. At the same time, four locking buckles 20 are additionally installed at the top of the conveying pipe 14 to strengthen the connection between the conveying pipe 14 and the top, reducing the load on the conveying pipe 14.

[0024] Furthermore, a vibrating disk 15 is installed above the back fixing plate 23. An external bracket 2 is installed outside the vibrating disk 15. A filter screen 3 is assembled in the middle of the external bracket 2. A motor base 16 is installed on the top surface of the back fixing plate 23. A vibrating motor 1 is installed above the motor base 16. A side back plate 4 is installed on the other side of the back fixing plate 23. Side columns 5 are installed on both sides of the side back plate 4. A workbench 13 is installed on the middle surface of the side back plate 4. A chassis 12 is assembled below the workbench 13. Four groups of foot pads 11 are installed below the chassis 12. A discharge port 18 is formed in the middle of the workbench 13. A conical hopper 17 is installed below the discharge port 18. A discharge conveying pipe 6 is installed at the interface of the conical hopper 17. A storage bin 7 is assembled below the discharge conveying pipe 6. Four groups of universal wheels 8 are assembled below the storage bin 7.

[0025] During operation, sand passes through the vibrating screen and enters the conveying pipe 14 through the filter screen 3. The lower back slider 25 moves along the surface of the slide rail 22, and at the same time drives the chassis 26 to move synchronously, completing the adjustment of the position of the auxiliary dredging device. When the sand passes through the outlet of the conveying pipe 14, it will fall into the lower discharge port 18, and then flow into the interior of the lower storage bin 7 through the discharge conveying pipe 6, thus completing the overall coarse sand screening and grading operation.

[0026] Working principle: In the current existing technology, the screening and grading devices on the market usually operate with a vibrating motor 1 installed at the top, driving the vibrating disk 15 to vibrate, thereby driving the sand on the surface of the vibrating disk 15 to vibrate. Through cooperation with the filter screen 3, the screening and grading operation of the surface sand is completed. However, during the process of sand screening and grading, when a large amount of screened and graded sand passes through the conveying pipe 14, blockages often occur. A large amount of sand will adhere to the inner wall of the conveying pipe 14 and accumulate, and cannot be sent into the lower discharge port 18, affecting the working efficiency. Therefore, in response to the above problems, a coarse sand screening and grading device is proposed. During the coarse sand screening and grading operation, the eight cross bars 27 are driven to move up and down repeatedly by the lifting cylinder 30 at the bottom to prevent sand from clogging and accumulating during transportation, improving the transportation efficiency. At the same time, four locking clamps 20 are additionally installed at the top of the conveying pipe 14 to reinforce the connection between the conveying pipe 14 and the top, reducing the load on the conveying pipe 14. Sand passes through the vibrating screen and enters the conveying pipe 14 through the filter screen 3. The lower back slider 25 moves along the surface of the slide rail 22, and at the same time drives the chassis 26 to move synchronously, completing the adjustment of the position of the auxiliary dredging device. When the sand passes through the outlet of the conveying pipe 14, it will fall into the lower discharge port 18, and then flow into the interior of the lower storage bin 7 through the discharge conveying pipe 6, thus completing the overall coarse sand screening and grading operation.

[0027] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0028] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and the above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. Coarse sand screening and grading device, characterized by: The invention comprises an upper connecting ring (21), a conveying pipe (14) is installed below the upper connecting ring (21), the conveying pipe (14) and the upper connecting ring (21) are connected by a locking buckle (20), a chassis (26) is installed below the conveying pipe (14), an upper fixing plate (28) is installed above the chassis (26), the upper fixing plate (28) and the chassis (26) are connected by a supporting rod (33), eight groups of cross bars (27) are installed on the surface of the upper fixing plate (28), and the eight groups of cross bars (27) are evenly distributed on the surface of the upper fixing plate (28), three groups of micro motors (32) are installed below the chassis (26), a cylinder base (31) is installed on one side of the chassis (26), a lifting cylinder (30) is installed above the cylinder base (31), and a movable gas rod (29) is installed in the middle of the lifting cylinder (30) and the cylinder base (31).

2. The coarse sand screening and grading device according to claim 1, characterized in that: A fixed connection block (24) is installed on the back of the lifting cylinder (30), and the other side of the fixed connection block (24) is installed on the surface of a back slider (25). A back fixing plate (23) is installed on the surface of the side back plate (4), and a slide rail (22) is installed on the surface of the back fixing plate (23). The back slider (25) is installed on the surface of the slide rail (22).

3. The coarse sand screening and grading device according to claim 2 is characterized in that: A vibration plate (15) is installed above the back fixing plate (23), an external bracket (2) is installed on the outer side of the vibration plate (15), and a filter screen (3) is installed in the middle of the external bracket (2).

4. The coarse sand screening and grading device according to claim 2, characterized in that: A motor base (16) is installed on the top surface of the back fixing plate (23), a vibration motor (1) is installed above the motor base (16), and a side back plate (4) is installed on the other side of the back fixing plate (23).

5. The coarse sand screening and grading device according to claim 4, characterized in that: Side columns (5) are installed on both sides of the side back plate (4), a workbench (13) is installed on the middle surface of the side back plate (4), a base frame (12) is installed below the workbench (13), and four groups of foot pads (11) are installed below the base frame (12).

6. The coarse sand screening and grading device according to claim 5, characterized in that: A discharge port (18) is provided in the middle of the workbench (13), a conical bucket (17) is installed below the discharge port (18), a discharge conveying pipe (6) is installed at the interface of the conical bucket (17), a material storage box (7) is installed below the discharge conveying pipe (6), and four sets of universal wheels (8) are installed below the material storage box (7).

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