Gradable soil screening device

Abstract

The utility model discloses a gradable soil screening device, which belongs to the technical field of soil screening and comprises a base, a supporting bracket is arranged above the base, and two groups of connecting pieces are fixedly connected between two ends of the supporting bracket and the inner wall of the base respectively. A plurality of connecting rods are rotationally connected between the two connecting pieces located on the same vertical face. According to the gradable soil screening device, by arranging the screen plates, the screen holes and the collecting tank, soil is injected into the supporting bracket, the soil moves along the inclined plane of the uppermost screen plate, and in the moving process, the soil conforming to the size of the screen holes penetrates through the screen holes and falls above the next screen plate; soil which does not meet the screening condition falls into the collecting groove along the inclined face of the topmost screen plate and is discharged from the first collecting opening, the soil sequentially penetrates through the screen holes to move towards the next screen plate, finally, the soil which meets the size of the screen holes of the bottommost screen plate falls into the guide groove to be collected, and multi-stage screening of the soil is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of soil screening technology, specifically a gradeable soil screening device. Background Technology

[0002] Soil is widely used in many fields such as agriculture, construction, and environmental research. Different application scenarios have different requirements for soil particle size, so soil screening and grading are crucial. Traditional soil screening devices mostly use a single screen or a simple screening structure. This structure is difficult to accurately grade the soil and can only roughly distinguish between larger and smaller soil particles. It cannot meet the needs of multi-level and fine screening of soil particles. Since it can only perform coarse screening, if more fine soil particle grading is required, the screening operation needs to be repeated many times. This not only consumes a lot of time but also increases labor costs, affecting the progress of efficient and precise utilization of soil and related work in various fields. Utility Model Content

[0003] To overcome the above-mentioned defects, this utility model provides a gradeable soil screening device, which solves the problem that most traditional soil screening devices use a single screen or a simple screening structure. This structure is difficult to accurately classify the soil and can only roughly distinguish between larger and smaller soil particles. It cannot meet the needs of multi-level and fine screening of soil particles, thus affecting the efficient and accurate utilization of soil and the progress of related work in various fields.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a gradeable soil screening device, comprising a base, a support bracket on top of the base, two sets of connecting members fixedly connected between the two ends of the support bracket and the inner wall of the base, several connecting rods rotatably connected between the two connecting members located on the same vertical plane, the two ends of the connecting rods being spherical, one set of connecting rods being higher than the other set of connecting rods, the support bracket being inclined, three sieve plates fixedly installed parallel to each other on the inner wall of the support bracket, the lengths of the three sieve plates decreasing progressively from high to low, several sieve holes opening above the sieve plates, the size of the sieve holes decreasing progressively from high to low, three collection troughs fixedly connected to the ends of the three sieve plates, guide plates fixedly installed in the collection troughs, the guide plates being inclined, and a first collection port located at the end of the guide plate at the bottom of the collection trough.

[0005] As a further embodiment of this utility model: a dustproof plate is fixedly installed on the top of the support bracket, and an injection port is provided above the dustproof plate.

[0006] As a further embodiment of this utility model: a guide groove is fixedly installed at the bottom of the support bracket. The guide groove is designed to be inclined, with the inclination direction facing the center of the guide groove. A second collection port is provided at the center of the guide groove.

[0007] As a further embodiment of this utility model: a fixed bracket is fixedly connected to one end of the base, and a dual-axis motor is fixedly connected above the protruding part at the center of the fixed bracket.

[0008] As a further embodiment of this utility model: the two output ends of the dual-axis motor are respectively fixedly connected to two rotating shafts, and the ends of the two rotating shafts that are far apart from each other are respectively fixedly connected to two drive disks. Two drive arms are provided on the side of the two drive disks that are far apart from each other, and the ends of the drive arms are rotatably connected to the side of the drive disks.

[0009] As a further embodiment of this utility model: the other end of the drive arm is rotatably connected to a connecting block, and one end of the connecting block is connected to one end of the support bracket.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This graded soil screening device, by setting up a support frame, sieve plates, sieve holes, and a collection trough, allows soil to be screened to be injected into the support frame through the injection port. The soil moves along the inclined surface of the uppermost sieve plate. During the movement, soil that meets the sieve hole size passes through the sieve hole and falls onto the next sieve plate. Soil that does not meet the screening criteria falls along the inclined surface of the uppermost sieve plate into the collection trough and is discharged from the first collection port. The soil moves sequentially through the sieve holes to the next lower sieve plate. Finally, soil that meets the sieve hole size of the lowermost sieve plate falls into the guide trough and is collected. In this way, larger soil particles can be screened out on the uppermost sieve plate first, and then smaller soil particles can be gradually screened out, realizing multi-stage soil screening. This facilitates the precise utilization of soil and related work in various fields.

[0012] 2. This gradeable soil screening device, by setting up a rotating shaft, drive discs, drive arms, and connecting blocks, allows the dual-shaft motor to drive two drive discs to rotate through two rotating shafts. The two drive discs continuously pull the drive arms, causing the drive arms to continuously pull and push the support bracket through the connecting blocks. Two sets of connecting rods rotate in the two connecting parts at their respective ends, causing the support bracket to vibrate continuously. In this way, the soil can move and be screened fully on the screen plate, ensuring that soil particles are orderly graded and screened according to the size of the screen holes, thus improving the accuracy and efficiency of the entire screening process. Attached Figure Description

[0013] Figure 1This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a schematic diagram of the internal structure of the support bracket of this utility model;

[0015] Figure 3 This is a schematic diagram of the connection between the sieve plate and the collection tank of this utility model;

[0016] Figure 4 This is a schematic diagram of the connection between the drive disc and the drive arm of this utility model;

[0017] In the diagram: 1. Base; 2. Support bracket; 3. Connector; 4. Connecting rod; 5. Sieve plate; 6. Sieve hole; 7. Collection trough; 8. Guide plate; 9. First collection port; 10. Dustproof plate; 11. Injection port; 12. Guide trough; 13. Second collection port; 14. Fixed bracket; 15. Dual-axis motor; 16. Rotating shaft; 17. Drive disc; 18. Drive arm; 19. Connecting block. Detailed Implementation

[0018] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0019] like Figure 1-4 As shown, this utility model provides a technical solution: a gradeable soil screening device, including a base 1, a fixed support 14 fixedly connected to one end of the base 1, a dual-axis motor 15 fixedly connected above the protruding part at the center of the fixed support 14, two rotating shafts 16 fixedly connected to the two output ends of the dual-axis motor 15, two drive discs 17 fixedly connected to the ends of the two rotating shafts 16 that are far apart from each other, and two drive arms 18 provided on the side of the two drive discs 17 that are far apart from each other. The end of the drive arm 18 is rotatably connected to the side of the drive disc 17, and the other end of the drive arm 18 is rotatably connected to a connecting block 19. One end of the connecting block 19 is connected to one end of the support bracket 2. Through the cooperation between the drive discs 17 and the drive arms 18, and the rotational connection between the drive arms 18, the drive discs 17 and the connecting block 19, the circumferential motion of the drive discs 17 during rotation can be effectively converted into a pushing and pulling action on the support bracket 2, generating a stable vibration source, providing continuous and stable power for the screening of soil on the sieve plate 5, and ensuring the smooth progress of the screening process;

[0020] A support bracket 2 is provided above the base 1. A dustproof plate 10 is fixedly installed on the top of the support bracket 2. An injection port 11 is provided above the dustproof plate 10. Because of the dustproof plate 10, the dustproof plate 10 can prevent external dust and other impurities from entering the interior of the support bracket 2, and avoid mixing into the soil and affecting the soil screening quality. A guide groove 12 is fixedly installed at the bottom of the support bracket 2. The guide groove 12 is inclined and the inclined direction is towards the center of the guide groove 12. A second collection port 13 is provided at the center of the guide groove 12. The inclined design allows the guide groove 12 to concentrate the soil that meets the size of the sieve hole 6 of the bottom sieve plate 5 and flow to the second collection port 13, which facilitates the unified collection of this part of the soil, improves the collection efficiency, and reduces the soil residue in the device.

[0021] Two sets of connectors 3 are fixedly connected to both ends of the support bracket 2 and the inner wall of the base 1, respectively. Several connecting rods 4 are rotatably connected between the two connectors 3 located on the same vertical plane. The two ends of the connecting rods 4 are spherical. The height of one set of connecting rods 4 is higher than that of the other set of connecting rods 4. The support bracket 2 is inclined. The inclined support bracket 2 can use gravity to allow the soil to move naturally along the surface of the sieve plate 5, thereby improving the screening rate. Three sieve plates 5 are fixedly installed in parallel on the inner wall of the support bracket 2. The length of the three sieve plates 5 decreases stepwise from high to low. Several sieve holes 6 are opened on the top of the sieve plates 5. The size of the sieve holes 6 decreases stepwise from high to low. The design of the three sieve plates 5 with progressively decreasing lengths and sieve hole sizes 6 allows for graded sieving of the soil. Larger soil particles are first sieved out on the top sieve plate 5, and then smaller soil particles are gradually sieved out, achieving multi-stage sieving of the soil and improving the accuracy of sieving. Three collection troughs 7 are fixedly connected to the ends of the three sieve plates 5, and guide plates 8 are fixedly installed in the collection troughs 7. The guide plates 8 are inclined. Through the cooperation of the collection troughs 7 and the guide plates 8, the sieved soil can be easily collected and discharged, avoiding the accumulation of soil at the ends of the sieve plates 5, which would affect the sieving effect. The bottom of the collection trough 7 is provided with a first collection port 9 at the end of the guide plate 8.

[0022] The working principle of this utility model is as follows: When using the device, the dual-axis motor 15 drives two rotating shafts 16 to rotate synchronously. The rotating shafts 16 drive two driving disks 17 to rotate. Since one end of the driving arm 18 is connected to the side of the driving disk 17, the driving disk 17 will continuously pull the driving arm 18 during rotation. One end of the driving arm 18 follows the rotation of the driving disk 17 and continuously pulls and pushes the connecting block 19. Through the connecting block 19, the support bracket 2 is pulled and pushed. After the support bracket 2 is subjected to external force, the connecting parts 3 at both ends drive the two sets of connecting rods 4 to rotate repeatedly above the two connecting parts 3 between the inner walls of the base 1. At the same time, the connecting parts 3 limit the range of the connecting rods 4, thereby causing the support bracket 2 to vibrate repeatedly. Then, through the injection port 11, the vibration is directed towards the support bracket 2. Soil with a sieve is injected into the support bracket 2. After entering the support bracket 2, the soil falls on the uppermost sieve plate 5. After being vibrated, the soil moves along the inclined surface of the uppermost sieve plate 5 to the outermost collection trough 7. After falling into the outermost collection trough 7, it flows out from the outermost first collection port 9 under the action of the guide plate 8. During the movement, the soil that matches the size of the sieve hole 6 of the uppermost sieve plate 5 will fall onto the sieve plate 5 located in the middle position and move towards the middle collection trough 7. During the movement, the soil that matches the size of the sieve hole 6 of the middle sieve plate 5 will pass through the sieve hole 6 and fall on the uppermost sieve plate 5. The same steps are repeated. Finally, the soil that matches the size of the sieve hole 6 of the lowermost sieve plate 5 will fall into the guide trough 12 and be collected from the second collection port 13 for use of the device.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A gradeable soil screening device, comprising a base (1), characterized in that: A support bracket (2) is provided above the base (1). Two sets of connectors (3) are fixedly connected between the two ends of the support bracket (2) and the inner wall of the base (1). Several connecting rods (4) are rotatably connected between the two connectors (3) located on the same vertical plane. The two ends of the connecting rods (4) are spherical. The height of one set of connecting rods (4) is higher than the height of the other set of connecting rods (4). The support bracket (2) is inclined. The inner walls of the support bracket (2) are parallel to each other. Three sieve plates (5) are fixedly installed, and the length of the three sieve plates (5) decreases step by step from high to low. Several sieve holes (6) are opened on the top of the sieve plates (5), and the size of the sieve holes (6) decreases step by step from high to low. Three collection troughs (7) are fixedly connected to the ends of the three sieve plates (5). A guide plate (8) is fixedly installed in the collection trough (7). The guide plate (8) is inclined. The bottom of the collection trough (7) is provided with a first collection port (9) at the end of the guide plate (8).

2. The gradeable soil screening device according to claim 1, characterized in that: A dustproof plate (10) is fixedly installed on the top of the support bracket (2), and an injection port (11) is opened above the dustproof plate (10).

3. The gradeable soil screening device according to claim 1, characterized in that: The bottom of the support bracket (2) is fixedly installed with a guide groove (12). The guide groove (12) is designed to be inclined, with the inclined direction facing the center of the guide groove (12). A second collection port (13) is provided at the center of the guide groove (12).

4. The gradeable soil screening device according to claim 1, characterized in that: A fixed bracket (14) is fixedly connected to one end of the base (1), and a dual-axis motor (15) is fixedly connected above the protruding part at the center of the fixed bracket (14).

5. A gradeable soil screening device according to claim 4, characterized in that: The two output ends of the dual-axis motor (15) are respectively fixedly connected to two rotating shafts (16), and the ends of the two rotating shafts (16) that are far apart from each other are respectively fixedly connected to two drive disks (17). Two drive arms (18) are provided on the side of the two drive disks (17) that are far apart from each other, and the ends of the drive arms (18) are rotatably connected to the side of the drive disks (17).

6. The gradeable soil screening device according to claim 5, characterized in that: The other end of the drive arm (18) is rotatably connected to a connecting block (19), one end of which is connected to one end of the support bracket (2).

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