Novel sand dredger screening device
By adopting a sliding installation frame structure and telescopic columns to adjust the screening angle in the sand dredger screening device, the problems of easy screen clogging and inconvenient disassembly and assembly are solved, achieving efficient installation and cleaning, and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HORQIN QI AGULA OCEAN SILICA SAND CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-04-21
AI Technical Summary
The screens of existing sand dredger screening devices are prone to clogging and are not easy to disassemble and assemble quickly, which affects production efficiency.
A novel screening device for sand dredgers was designed, which adopts a sliding installation frame structure. It can be easily installed and disassembled by using disassembly knobs and screws. Combined with telescopic columns to adjust the screening angle, the installation efficiency and applicability of the device are improved.
It enables convenient installation and disassembly, improves the practicality and applicability of the device, and enhances production efficiency and screen cleaning efficiency.
Smart Images

Figure CN224142812U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sand dredger screening technology, and in particular to a novel sand dredger screening device. Background Technology
[0002] Because the mud collected through sand mining facilities usually contains large pieces of soil and rocks, and on the other hand, the surface of the overburden layer in the sand mining area is covered with dredged debris such as stones and hard clay dumped by the construction unit in the early stage, and some of it has sunk and embedded in the silt layer, the collected sand source cannot meet the requirements of the project construction for sand source quality. It needs to be filtered to remove the large particles of debris to obtain qualified sand source.
[0003] A search revealed that CN218775166U discloses a sand dredger screening device, including a screen plate, a support, a motor, a first drive shaft, a second drive shaft, and vibrating blocks. The support is fixed on the sand dredger, and the screen plate is horizontally slidably connected to the support. The screen plate is provided with the first drive shaft and the second drive shaft. The motor drives the first drive shaft to rotate. The first drive shaft is driven by the two second drive shafts through a bevel gear. The axes of the two second drive shafts coincide. The vibrating blocks are respectively provided on the side of the second drive shaft. In the initial state, the two vibrating blocks are located on the same horizontal side of the second drive shaft.
[0004] The sand dredger screening device in the prior art, although it reduces the swaying of the sand dredger during the sand dredging process, is prone to clogging during the separation of sand and gravel, so it needs to be cleaned or replaced frequently. However, the device is not easy to disassemble and assemble quickly, and the replacement of the screen is troublesome, time-consuming and labor-intensive, which affects production efficiency.
[0005] Therefore, we propose a new type of screening device for sand dredgers. Utility Model Content
[0006] The present invention aims to solve the technical problems existing in the prior art and provide a new type of sand dredging vessel screening device.
[0007] To achieve the above objectives, this utility model adopts the following technical solution: a novel sand dredger screening device, comprising a base, a fixed frame on the top of the base, baffles fixedly installed at the front and rear ends of the fixed frame, and locking slots on the left ends of the sides of the two baffles that are close to each other; a guide block fixedly installed at the top right end of the fixed frame, with a positioning slot on the left side of the guide block; first slide rails fixedly installed at the front and rear ends of the top of the fixed frame; an installation frame on the upper side of the fixed frame, a screen plate fixedly installed inside the installation frame; and a second slide rail fixedly installed at the front and rear ends of the bottom of the installation frame. A slider is provided, and two first sliders are slidably mounted on the front and rear first slide rails respectively. A positioning plug is fixedly mounted on the bottom right end of the mounting frame, and the right end of the positioning plug is inserted into the positioning slot. A mounting plate is fixedly mounted on the bottom left end of the mounting frame. Second slide rails are respectively provided on the front and rear sides of the mounting plate. Each second slide rail is fixedly mounted on the bottom of the base. A second slider is slidably mounted on each second slide rail. Locking plugs are fixedly mounted on the bottom of the two second sliders at opposite ends. The opposite ends of the two locking plugs are inserted into the front and rear locking sockets respectively.
[0008] Furthermore, a fourth slide rail is fixedly installed at the bottom of the mounting plate, and a fourth slider is slidably installed on the fourth slide rail. A third connecting plate is provided on the left and right sides of the fourth slider, and the two third connecting plates are fixedly installed at the left and right ends of the bottom of the mounting plate. A second connecting block is fixedly installed at the bottom of the fourth slider, and a metal threaded sleeve is fixedly inserted into the second connecting block. A disassembly and assembly screw is threaded into the metal threaded sleeve, and the two ends of the disassembly and assembly screw are respectively rotatably inserted into the left and right third connecting plates. A disassembly and assembly knob is fixedly installed at the left end of the disassembly and assembly screw.
[0009] Furthermore, the fourth slider has connecting rods rotatably mounted at its front and rear ends via rotating shafts, and the ends of the two connecting rods that are far apart from each other are rotatably mounted at the bottom of the two second sliders that are close to each other via rotating shafts.
[0010] Furthermore, a first bracket is fixedly installed at the top left end of the base, and a first connecting plate is fixedly installed at the top right end of the base. A telescopic column is rotatably installed on the first connecting plate via a rotating shaft. A second bracket is fixedly installed at the telescopic end of the telescopic column, and a third slide rail is fixedly installed at the top of the first bracket and the second bracket, respectively.
[0011] Furthermore, a second connecting plate is fixedly installed at the bottom left and right ends of the fixed frame, and a first connecting block is rotatably installed on each of the second connecting plates via a rotating shaft. A third slider is fixedly installed at the bottom of each first connecting block, and the two third sliders are slidably installed on the left and right third slide rails respectively.
[0012] Furthermore, a collection box is provided directly below the fixed frame, and the collection box is fixedly installed on the top of the base.
[0013] Furthermore, vibration blocks are fixedly installed at the front and rear ends of the bottom of the fixed frame.
[0014] This utility model provides a novel screening device for sand dredgers. It has the following beneficial effects:
[0015] 1. This novel sand dredging vessel screening device, when installing the installation frame, firstly slides the first slider at the bottom of the installation frame onto the first slide rail at the top of the fixed frame from the left end. Then, push the installation frame to the right so that the positioning block at the bottom of the installation frame is inserted into the positioning slot on the left side of the guide block. Turn the disassembly knob to drive the disassembly screw to rotate. The disassembly screw drives the fourth slider to slide to the right along the fourth slide rail through the metal threaded sleeve and the second connecting block. The fourth slider drives the two second sliders to move away from each other along the second slide rail through the two connecting rods. This causes the two second sliders to drive the locking blocks on them to be inserted into the locking slots on the adjacent baffles. This achieves the effect of facilitating the installation of the installation frame, improving the installation efficiency of the device, and effectively improving the practicality of the device.
[0016] 2. In this novel sand dredging vessel screening device, when removing the installation frame, the disassembly knob is turned in the reverse direction. This causes the fourth slider to move to the left via the disassembly screw, metal sleeve, and second connecting block. The two connecting rods then drive the two second sliders to move closer together along the second slide rail. Finally, the two second sliders drive the ends of the two second slide rails that are moving away from each other to pull them out of the locking socket. This pushes the installation frame to the left, causing the installation frame to move the first slider away from the left end of the first slide rail. This facilitates the removal of the installation frame, improves the cleaning efficiency of the screen plate, and further enhances the practicality of the device.
[0017] 3. This novel sand dredging vessel screening device, when activated, shortens the telescopic column, causing the second support to move downwards. The second support, through the first connecting block, second connecting plate, third slider, and third slide rail set at the top, causes the right end of the fixed frame to descend, thereby adjusting the tilt angle of the fixed frame. This achieves the effect of adjusting the tilt angle of the installation frame set at the top of the fixed frame according to different screening requirements, effectively improving the applicability of the device. Attached Figure Description
[0018] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this utility model can be implemented, and therefore have no substantial technical significance.
[0019] Figure 1 This is a schematic diagram of the overall structure in front section.
[0020] Figure 2This is a schematic diagram of the fixed frame structure;
[0021] Figure 3 This is a schematic diagram of the bottom structure of the mounting frame;
[0022] Figure 4 for Figure 2 Enlarged view of point A in the middle;
[0023] Figure 5 for Figure 3 Enlarged diagram of point B in the middle.
[0024] Legend:
[0025] 1. Base; 2. First bracket; 3. Locking block; 4. Locking socket; 5. Fixing frame; 6. Baffle; 7. First slide rail; 8. Positioning slot; 9. Guide block; 10. Second bracket; 11. Telescopic column; 12. First connecting plate; 13. Collection box; 14. Second slide rail; 15. Second slider; 16. First slider; 17. Mounting frame; 18. Positioning block; 19. Screen plate; 20. First connecting block; 21. Second connecting plate; 22. Third slider; 23. Third slide rail; 24. Connecting rod; 25. Fourth slider; 26. Disassembly knob; 27. Metal screw sleeve; 28. Second connecting block; 29. Mounting plate; 30. Third connecting plate; 31. Disassembly screw; 32. Fourth slide rail; 33. Vibration block. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.
[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, such as welding, riveting, or bonding; it can also be a detachable connection, such as threaded connection, keyed connection, or pin connection; or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can be a connection within 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.
[0029] A new type of sand dredger screening device, such as Figure 1-5As shown, the system includes a base 1, a fixed frame 5 on the top of the base 1, baffles 6 fixedly installed at the front and rear ends of the fixed frame 5, and locking slots 4 on the left ends of the sides of the two baffles 6 that are close to each other. A guide block 9 is fixedly installed at the top right end of the fixed frame 5, and a positioning slot 8 is provided on the left side of the guide block 9. First slide rails 7 are fixedly installed at the front and rear ends of the top of the fixed frame 5. An installation frame 17 is provided on the upper side of the fixed frame 5, and a sieve plate 19 is fixedly installed inside the installation frame 17. First sliders 16 are fixedly installed at the front and rear ends of the bottom of the installation frame 17, and the two first sliders 16 are slidably installed on the front and rear first slide rails 7 respectively. A positioning plug 18 is fixedly installed at the bottom right end of the installation frame 17. The mounting plate 29 is fixedly installed on the bottom left end of the mounting frame 17. Second slide rails 14 are respectively provided on the front and rear sides of the mounting plate 29. Each second slide rail 14 is fixedly installed on the bottom of the base 1. A second slider 15 is slidably installed on each second slide rail 14. Locking blocks 3 are fixedly installed on the bottom of the two second sliders 15 at opposite ends. The opposite ends of the two locking blocks 3 are respectively inserted into the front and rear locking sockets 4. A fourth slide rail 32 is fixedly installed on the bottom of the mounting plate 29. A fourth slider 25 is slidably installed on the fourth slide rail 32. Third connecting plates 30 are respectively provided on the left and right sides of the fourth slider 25. Two third connecting plates 30 are respectively fixedly installed on... At the bottom left and right ends of the mounting plate 29, a second connecting block 28 is fixedly installed at the bottom of the fourth slider 25. A metal threaded sleeve 27 is fixedly inserted into the second connecting block 28, and a disassembly screw 31 is threaded into the metal threaded sleeve 27. The two ends of the disassembly screw 31 are respectively rotatably inserted into the left and right third connecting plates 30. A disassembly knob 26 is fixedly installed at the left end of the disassembly screw 31. Connecting rods 24 are rotatably installed at the bottom front and rear ends of the fourth slider 25 via rotating shafts. The ends of the two connecting rods 24 that are far apart from each other are respectively rotatably installed at the bottom of the two second sliders 15 that are close to each other via rotating shafts. A first bracket 2 is fixedly installed at the top left end of the base 1, and a first connecting plate 12 is fixedly installed at the top right end of the base 1. A telescopic column 11 is rotatably mounted on a connecting plate 12 via a rotating shaft. A second bracket 10 is fixedly mounted on the telescopic end of the top of the telescopic column 11. A third slide rail 23 is fixedly mounted on the top of the first bracket 2 and the second bracket 10 respectively. A second connecting plate 21 is fixedly mounted on the left and right ends of the bottom of the fixed frame 5 respectively. A first connecting block 20 is rotatably mounted on each second connecting plate 21 via a rotating shaft. A third slider 22 is fixedly mounted on the bottom of each first connecting block 20. Two third sliders 22 are slidably mounted on the left and right third slide rails 23 respectively. A collection box 13 is set directly below the fixed frame 5. The collection box 13 is fixedly mounted on the top of the base 1. Vibration blocks 33 are fixedly mounted on the front and rear ends of the bottom of the fixed frame 5 respectively.
[0030] The working principle of this utility model is as follows: When installing the mounting frame 17, the first slider 16 at the bottom of the mounting frame 17 is first slidably installed from the left end onto the first slide rail 7 at the top of the fixed frame 5. Then, the mounting frame 17 is pushed to the right so that the positioning insert 18 at the bottom of the mounting frame 17 is inserted into the positioning slot 8 on the left side of the guide block 9. The disassembly and assembly knob 26 is turned to drive the disassembly and assembly screw 31 to rotate. The disassembly and assembly screw 31 drives the fourth slider 25 to slide to the right along the fourth slide rail 32 through the metal screw sleeve 27 and the second connecting block 28. The fourth slider 25 drives the two second sliders 15 to move away from each other along the second slide rail 14 through the two connecting rods 24, so that the two second sliders 15 drive the locking inserts 3 on them to be inserted into the locking slots 4 on the adjacent baffles 6. This achieves the effect of facilitating the installation of the mounting frame 17, improving the installation efficiency of the device, and effectively improving the practicality of the device.
[0031] When removing the mounting frame 17, turn the disassembly knob 26 in the opposite direction. The disassembly screw 31, metal sleeve 27, and second connecting block 28 drive the fourth slider 25 to move to the left. The two connecting rods 24 drive the two second sliders 15 to move closer to each other along the second slide rail 14. Then, the two second sliders 15 drive the two ends of the two second slide rails 14 to be pulled away from the locking socket 4. Push the mounting frame 17 to the left, so that the mounting frame 17 drives the first slider 16 to slide away from the left end of the first slide rail 7. This achieves the effect of facilitating the removal of the mounting frame 17, improving the cleaning efficiency of the screen plate 19, and further improving the practicality of the device.
[0032] When the telescopic column 11 is activated, it shortens and causes the second support 10 to move downward. The second support 10, through the first connecting block 20, the second connecting plate 21, the third slider 22 and the third slide rail 23 set at the top, causes the right end of the fixed frame 5 to descend, thereby adjusting the tilt angle of the fixed frame 5. This achieves the effect of adjusting the tilt angle of the mounting frame 17 set at the top of the fixed frame 5 according to different screening requirements, effectively improving the applicability of the device.
[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A novel sand dredging vessel screening device, comprising a base (1), characterized in that: The base (1) is provided with a fixed frame (5) on the top. The fixed frame (5) is fixedly installed with baffles (6) at the front and rear ends respectively. The left ends of the two baffles (6) are provided with locking slots (4) on the side close to each other. The top right end of the fixed frame (5) is fixedly installed with a guide block (9). The left side of the guide block (9) is provided with a positioning slot (8). The top front and rear ends of the fixed frame (5) are fixedly installed with first slide rails (7). The upper side of the fixed frame (5) is provided with an installation frame (17). The installation frame (17) is fixedly installed with a sieve plate (19). The bottom front and rear ends of the installation frame (17) are fixedly installed with first sliders (16). The two first sliders (16) are slidably installed on the front. On the last two first slide rails (7), a positioning plug (18) is fixedly installed at the bottom right end of the mounting frame (17). The right end of the positioning plug (18) is inserted into the positioning slot (8). A mounting plate (29) is fixedly installed at the bottom left end of the mounting frame (17). A second slide rail (14) is provided on the front and rear sides of the mounting plate (29). Each second slide rail (14) is fixedly installed at the bottom of the base (1). A second slider (15) is slidably installed on each second slide rail (14). A locking plug (3) is fixedly installed at the bottom of the two second sliders (15) at one end away from each other. The two locking plugs (3) at one end away from each other are inserted into the front and rear locking sockets (4).
2. A novel dredge boat screening device as claimed in claim 1, wherein: The mounting plate (29) is fixedly mounted with a fourth slide rail (32) at the bottom. A fourth slider (25) is slidably mounted on the fourth slide rail (32). A third connecting plate (30) is provided on the left and right sides of the fourth slider (25). The two third connecting plates (30) are fixedly mounted on the left and right ends of the bottom of the mounting plate (29). A second connecting block (28) is fixedly mounted on the bottom of the fourth slider (25). A metal threaded sleeve (27) is fixedly inserted on the second connecting block (28). A disassembly screw (31) is threaded onto the metal threaded sleeve (27). The two ends of the disassembly screw (31) are rotatably inserted into the left and right third connecting plates (30). A disassembly knob (26) is fixedly mounted on the left end of the disassembly screw (31).
3. A novel dredge boat screening device as claimed in claim 2, characterized in that: The fourth slider (25) has connecting rods (24) mounted on its bottom front and rear ends via rotating shafts. The ends of the two connecting rods (24) that are far apart from each other are mounted on the bottom of the two second sliders (15) that are close to each other via rotating shafts.
4. A novel dredge boat screening device as claimed in claim 1, wherein: A first bracket (2) is fixedly installed on the top left end of the base (1), and a first connecting plate (12) is fixedly installed on the top right end of the base (1). A telescopic column (11) is rotatably installed on the first connecting plate (12) via a rotating shaft. A second bracket (10) is fixedly installed on the telescopic end of the top of the telescopic column (11). A third slide rail (23) is fixedly installed on the top of the first bracket (2) and the second bracket (10).
5. A novel dredge boat screening device as claimed in claim 4, wherein: The bottom left and right ends of the fixed frame (5) are respectively fixedly installed with second connecting plates (21). Each second connecting plate (21) is rotatably installed with a first connecting block (20) via a rotating shaft. Each first connecting block (20) is fixedly installed with a third slider (22) at its bottom. The two third sliders (22) are respectively slidably installed on the left and right third slide rails (23).
6. A novel dredge boat screening device as claimed in claim 1, wherein: A collection box (13) is provided directly below the fixed frame (5), and the collection box (13) is fixedly installed on the top of the base (1).
7. A novel dredge boat screening device as claimed in claim 1, wherein: Vibration blocks (33) are fixedly installed at the front and rear ends of the bottom of the fixed frame (5).
Citation Information
Patent Citations
Screening device of sand dredger
CN218775166U