Environment-friendly dredging equipment for water area

Abstract

The invention belongs to the technical field of water environment treatment, and particularly relates to water area environment-friendly dredging equipment which comprises a sludge suction cover, a driving motor is fixed to the top of the sludge suction cover, and a rotating shaft is installed at the power output end of the driving motor; a plurality of through holes are formed in the filtering mechanism; the free end of the rotating shaft penetrates through the mud suction cover and the filtering mechanism and is fixedly connected with the mincing impeller below the filtering mechanism; the jacking and pressing mechanism comprises a connecting rod in transmission connection with the rotating shaft, the central axis of the connecting rod is parallel to the inner wall of the filtering mechanism and located on the inner side of the filtering mechanism, a plurality of rotating blocks are rotationally installed on the connecting rod, and a plurality of protruding blocks corresponding to the through holes are arranged on the rotating blocks; the scraping mechanism comprises a scraping plate which is in transmission connection with the rotating shaft, and the scraping plate is located on the outer side of the filtering mechanism and is attached to the filtering mechanism. The invention aims to solve the problem of low desilting efficiency caused by structural defects of the existing desilting equipment.

Description

Technical Field

[0001] The present invention belongs to the technical field of water environment treatment, and particularly relates to a water area environmental protection dredging device. Background Art

[0002] The silt in water areas not only affects water quality, but also causes a series of problems such as obstructing shipping and triggering floods. Traditional dredging methods mostly use mechanical excavation or suction. Although these methods are effective, they have problems such as low efficiency and great environmental damage. Especially during the process of sucking riverbed silt, it is easy to cause incomplete separation of silt and water, affecting the dredging effect.

[0003] The Chinese utility model patent (publication number: CN207348126U) discloses a water conservancy project dredging device, which includes a mud suction hood. A partition is installed inside the mud suction hood. A silt suction pipe is communicated with the mud suction hood above the partition. A number of through holes are arranged in the partition in an array. A driving motor is fixed on the top of the mud suction hood. The rotating shaft of the driving motor movably penetrates through the mud suction hood and the partition and extends outside the mud suction hood. A stirring paddle device is installed at the lower end of the rotating shaft. The stirring paddle device includes a sleeve and a number of paddle blades circumferentially distributed on the outer side wall of the sleeve. A boss is arranged at the lower end of the rotating shaft. The sleeve is sleeved outside the boss. A nut for pressing the sleeve is threadedly connected to the outside of the boss below the sleeve. A limiting structure is arranged between the sleeve and the rotating shaft to prevent the sleeve from rotating relative to the rotating shaft.

[0004] It breaks up large pieces of silt through the paddle blades, and through the setting of the partition, it can prevent too many large pieces of silt from entering the silt suction pipe, thus avoiding the phenomenon of the silt suction pipe being blocked. However, in the actual use process, the through holes of the partition are often blocked by objects such as stones and silt in the water, thereby affecting the dredging efficiency. Summary of the Invention

[0005] The purpose of the present invention is: to provide a water area environmental protection dredging device to solve the problem of low dredging efficiency caused by the structural defects of existing dredging devices.

[0006] To achieve the above technical purpose, the technical solution adopted by the present invention is as follows: A water area environmental protection dredging device includes: A mud suction hood, on the top of which a driving motor is fixed, and the power output end of the driving motor is equipped with a rotating shaft; A filtering mechanism, which is fixedly installed inside the mud suction hood. A number of through holes are opened on the filtering mechanism. A suction pipe is arranged above the filtering mechanism in the mud suction hood; A crushing impeller, the free end of the rotating shaft passes through the mud suction hood and the filtering mechanism and is fixedly connected with the crushing impeller below the filtering mechanism; A pressing mechanism, comprising a connecting rod connected to the rotating shaft in a transmission manner, wherein the central axis of the connecting rod is parallel to the inner wall of the filter mechanism and is located inside the filter mechanism, and a plurality of rotating blocks are rotatably mounted on the connecting rod, and the rotating blocks are provided with a plurality of protrusions, and the protrusions correspond to the through holes; The scraping mechanism includes a scraper connected to the rotating shaft in a transmission manner. The scraper is located outside the filtering mechanism and is abutted against the filtering mechanism.

[0007] It is further defined that a speed reduction mechanism is installed on the rotating shaft, and the rotating shaft is connected to the pressing mechanism and the scraping mechanism through the speed reduction mechanism.

[0008] Such a structural design completes the transmission connection between the rotating shaft and the pressing mechanism and the scraping mechanism through the reduction mechanism, which can reduce the rotation speed of the pressing mechanism and the scraping mechanism relative to the impeller, avoid the problem of excessive energy consumption caused by the excessive rotation speed of the pressing mechanism and the scraping mechanism, and is highly practical.

[0009] It is further defined that the reduction mechanism is a planetary gear train, and the planetary gear train includes a sun gear, planet gears, a planet carrier and an inner ring gear; A connecting cylinder is rotatably mounted on the rotating shaft; The planetary frame is fixedly connected to the mud suction cover, and the planetary gear is rotatably mounted on the planetary frame; The sun gear is fixedly connected to the rotating shaft; The inner gear ring is fixedly connected to the connecting cylinder; The connecting rod and the scraper are both fixedly connected to the connecting cylinder.

[0010] This structural design achieves the purpose of reducing the rotation speed of the top pressing mechanism and the scraping mechanism and reducing energy consumption by forming a speed reduction mechanism with a planetary gear system. It has a simple structure, is easy to use and has strong practicality.

[0011] It is further defined that the filtering mechanism is cylindrical with an open upper end and a closed lower end, and the through hole is opened on the side wall of the filtering mechanism.

[0012] Such a structural design can increase the filtering area of the filtering mechanism by setting the filtering mechanism to be cylindrical, thereby improving the dredging efficiency and having strong practicality.

[0013] It is further defined that the filtering mechanism has a cone-shaped structure that is larger at the top and smaller at the bottom.

[0014] Such a structural design, by setting the filter mechanism to a conical structure that is larger at the top and smaller at the bottom, can further increase the filter area of the filter mechanism compared to a straight cylindrical structure, and is more practical.

[0015] It is further defined that the protrusion is hemispherical and the through hole is circular.

[0016] This structural design, by setting the protrusion to be hemispherical and the through-hole to be circular, completes the extrusion of the object in the through-hole through the mutual cooperation between the hemispherical protrusion and the circular through-hole, and has a higher adaptability. Compared with setting the through-hole to be rectangular, it can reduce the number of corners and reduce the manufacturing difficulty, and is more practical.

[0017] It is further defined that the scraper is inclined from top to bottom toward the rotation direction of the rotation shaft.

[0018] This structural design, through the inclination of the scraper, allows the objects scraped from the filter mechanism by the scraper to move upward along the inclined side wall of the scraper under the action of centrifugal force, and will not accumulate on the scraper.

[0019] It is further defined that the scraper is inclined from inside to outside toward the rotation direction of the rotation shaft.

[0020] Such a structural design can collect the objects scraped off from the filter mechanism through the inclined scraper, so that the objects can collide with the filter mechanism again when moving upward along the inclined side wall of the scraper, so that some of the sludge that has not been broken up can be broken up again in this process and then enter the filter mechanism through other through holes, thereby improving the sludge removal efficiency and being more practical.

[0021] It is further defined that a sliding ring is fixedly mounted on the inner wall of the mud suction hood at the free end of the scraper; The scraper is provided with a sliding groove, and the sliding ring is passed through the sliding groove.

[0022] Such a structural design forms support for the free end of the scraper through the mutual cooperation between the sliding ring and the sliding groove, thereby preventing the scraper from being separated from the filtering mechanism after long-term use, and is highly practical.

[0023] The invention adopting the above technical solution has the following advantages: 1. The driving motor drives the mincing impeller to rotate, breaking up large pieces of sludge. At the same time, the rotating shaft drives the pressing mechanism and the scraping mechanism to rotate synchronously. Then, the pressing mechanism is used to squeeze out the objects stuck in the through-hole. The scraping mechanism then scrapes the squeezed objects to prevent them from getting stuck in the same through-hole again. 2. The transmission connection between the rotating shaft and the pressing mechanism and the scraping mechanism is completed through the speed reduction mechanism, which can reduce the rotation speed of the pressing mechanism and the scraping mechanism relative to the impeller, avoiding the problem of excessive energy consumption caused by the excessive rotation speed of the pressing mechanism and the scraping mechanism, and has strong practicality; 3. Through the inclination of the scraper, the objects scraped from the filter mechanism by the scraper can move upward along the inclined side wall of the scraper under the action of centrifugal force, and will not accumulate on the scraper; 4. Through the obliquely arranged scraper, the items scraped from the filtering mechanism can be gathered. Thus, when the items move upward along the inclined side wall of the scraper, they can collide with the filtering mechanism again. As a result, some of the silt that has not been dispersed can be redispersed during this process and then enter the filtering mechanism through other through-holes, improving the silt removal efficiency and having strong practicability. Brief Description of the Drawings

[0024] The present invention can be further illustrated by the non-limiting embodiments given in the drawings; Figure 1 It is a schematic structural diagram of an embodiment of a water area environmental protection dredging device of the present invention; Figure 2 It is a schematic cross-sectional structural diagram of an embodiment of a water area environmental protection dredging device of the present invention; Figure 3 It is Figure 2 The enlarged structural diagram at A in Figure 4 It is a schematic structural diagram of an embodiment of a water area environmental protection dredging device of the present invention after removing the mud suction hood; Figure 5 It is Figure 4 The enlarged structural diagram at B in The main element symbols are explained as follows: Mud suction hood 1, sliding ring 10, driving motor 11, rotating shaft 12, suction pipe 13, Filtering mechanism 2, through-hole 21, Crushing impeller 3, Top pressing mechanism 4, connecting rod 41, rotating block 42, convex block 43, Scraper 5, sliding groove 50. Detailed Embodiment

[0025] The present invention will be described in detail below in conjunction with the drawings and specific embodiments. It should be noted that in the drawings or the description, similar or identical parts are denoted by the same reference numerals, and the implementation manners not shown or described in the drawings are in the forms known to those of ordinary skill in the art. In addition, the directional terms mentioned in the embodiments, such as "up", "down", "top", "bottom", "left", "right", "front", "rear", etc., are only for reference to the directions in the drawings and are not used to limit the protection scope of the present invention.

[0026] As Figures 1 to 5 shown, a water area environmental protection dredging device of the present invention includes: A mud suction hood 1, a driving motor 11 is fixed on the top of the mud suction hood 1, and a rotating shaft 12 is installed at the power output end of the driving motor 11; The filter mechanism 2 is fixedly installed inside the mud suction cover 1. The filter mechanism 2 is provided with a plurality of through holes 21. The mud suction cover 1 is provided with a suction pipe 13 above the filter mechanism 2. The mincing impeller 3 and the free end of the rotating shaft 12 pass through the mud suction cover 1 and the filter mechanism 2 and are fixedly connected to the mincing impeller 3 below the filter mechanism 2; The pressing mechanism 4 includes a connecting rod 41 that is transmission-connected to the rotating shaft 12. The central axis of the connecting rod 41 is parallel to the inner wall of the filter mechanism 2 and is located inside the filter mechanism 2. A plurality of rotating blocks 42 are rotatably mounted on the connecting rod 41. The rotating blocks 42 are provided with a plurality of protrusions 43. The protrusions 43 correspond to the through holes 21. The scraping mechanism includes a scraper 5 that is transmission-connected to the rotating shaft 12 . The scraper 5 is located outside the filter mechanism 2 and abuts against the filter mechanism 2 .

[0027] The driving motor 11 drives the mincing impeller 3 to rotate, breaking up the large pieces of sludge. At the same time, the rotating shaft 12 drives the pressing mechanism 4 and the scraping mechanism to rotate synchronously. Then, the pressing mechanism 4 squeezes out the objects stuck in the through hole 21, and the scraping mechanism scrapes the squeezed objects to prevent the objects from getting stuck in the same through hole 21 again. A speed reducing mechanism is installed on the rotating shaft 12, and the rotating shaft 12 is connected to the pressing mechanism 4 and the scraping mechanism via the speed reducing mechanism.

[0028] In fact, according to actual conditions, the rotating shaft 12 can also be fixedly connected to the pressing mechanism 4 and the scraping mechanism. In this embodiment, the transmission connection between the rotating shaft 12 and the pressing mechanism 4 and the scraping mechanism is completed through a reduction mechanism, which can reduce the rotation speed of the pressing mechanism 4 and the scraping mechanism relative to the impeller 3, avoid the problem of excessive energy consumption caused by the excessive rotation speed of the pressing mechanism 4 and the scraping mechanism, and has strong practicality.

[0029] The reduction mechanism is a planetary gear system, which includes a sun gear, planet gears, a planet carrier and an inner ring gear; A connecting cylinder is rotatably mounted on the rotating shaft 12; The planetary frame is fixedly connected to the mud suction cover 1, and the planetary gear is rotatably mounted on the planetary frame; The sun gear is fixedly connected to the rotating shaft 12; The inner gear ring is fixedly connected to the connecting cylinder; The connecting rod 41 and the scraper 5 are both fixedly connected to the connecting cylinder.

[0030] In fact, according to actual conditions, a harmonic reducer can be selected as a reduction mechanism. This embodiment uses a planetary gear system to form a reduction mechanism to achieve the purpose of reducing the rotation speed of the top pressure mechanism 4 and the scraping mechanism and reducing energy consumption. It has a simple structure, is easy to use, and is highly practical.

[0031] The filter mechanism 2 is cylindrical with an open upper end and a closed lower end. The through hole 21 is provided on a side wall of the filter mechanism 2 .

[0032] In fact, a flat-plate filter mechanism 2 may also be selected according to actual conditions. In this embodiment, by configuring the filter mechanism 2 to be cylindrical, the filter area of the filter mechanism 2 can be increased, thereby improving the dredging efficiency and being more practical.

[0033] The filter mechanism 2 is in a cone-shaped structure that is larger at the top and smaller at the bottom.

[0034] In fact, according to actual conditions, the filter mechanism 2 can also be set to a straight cylindrical shape with a closed lower end. In this embodiment, by setting the filter mechanism 2 to a conical structure with a larger upper part and a smaller lower part, the filter area of the filter mechanism 2 can be further increased compared to the straight cylindrical structure, which is more practical.

[0035] The bump 43 is hemispherical, and the through hole 21 is circular.

[0036] In fact, the bump 43 and the through hole 21 can also be set to a rectangle according to actual conditions. In this embodiment, the bump 43 is set to a hemispherical shape and the through hole 21 is set to a circle. The mutual cooperation between the hemispherical bump 43 and the circular through hole 21 is used to complete the extrusion of the object in the through hole 21, and the adaptability is higher. Compared with setting the through hole 21 to a rectangle, it can reduce the number of corners and reduce the manufacturing difficulty, and is more practical.

[0037] The scraper 5 is inclined from top to bottom toward the rotation direction of the rotation shaft 12 .

[0038] In fact, the scraper 5 can also be vertically arranged along the outer wall of the filter mechanism 2 according to actual conditions. In this embodiment, the scraper 5 is tilted so that the objects scraped from the filter mechanism 2 by the scraper 5 can move upward along the inclined side wall of the scraper 5 under the action of centrifugal force, and will not accumulate on the scraper 5.

[0039] The scraper 5 is inclined from the inside to the outside toward the rotation direction of the rotation shaft 12 .

[0040] In fact, according to actual conditions, the scraper 5 can also be set to be inclined in the opposite direction of the rotation of the rotating shaft 12 from the inside to the outside of the groove. In this embodiment, the scraper 5 is set obliquely, so that the objects scraped from the filter mechanism 2 can be gathered, so that the objects can collide with the filter mechanism 2 again when moving upward along the inclined side wall of the scraper 5, so that some of the sludge that has not been broken up can be broken up again in this process and then enter the filter mechanism through other through holes 21, thereby improving the sludge removal efficiency and having strong practicality.

[0041] A sliding ring 10 is fixedly mounted on the inner wall of the mud suction hood 1 at the free end of the scraper 5; The scraping plate 5 is provided with a sliding groove 50, and the sliding ring 10 is inserted into the sliding groove 50.

[0042] Actually, according to the actual situation, a support rod can also be obliquely arranged between the scraping plate 5 and the rotating shaft 12. In this embodiment, through the mutual cooperation of the sliding ring 10 and the sliding groove 50, the free end of the scraping plate 5 is supported, avoiding the problem that the scraping plate 5 detaches from the filtering mechanism 2 after long-term use, and it has strong practicability.

[0043] In this embodiment, the driving motor 11 drives the crushing impeller 3 to rotate through the rotating shaft 12, realizing the dispersion of large pieces of silt. After the dispersed silt is filtered by the filtering mechanism 2, it enters the filtering mechanism 2 through the through hole 21 and is then sucked away by the suction pipe 13; During this process, when the through hole 21 of the filtering mechanism 2 is blocked by stones and silt, the pressing mechanism 4 rotates inside the filtering mechanism 2 following the rotating shaft 12, so that the hemispherical convex block 43 presses the circular through hole 21, thereby extruding the object stuck in the through hole 21; Then, the scraping mechanism scrapes the extruded object to prevent the object from getting stuck in the same through hole 21 again; After scraping, the scraping plate 5 gathers the objects scraped from the filtering mechanism 2 and makes the objects move upward along the inclined side wall of the scraping plate 5, so that some objects can collide with the filtering mechanism 2 again, and then some of the undispersed silt can be redispersed during this process and enter the filtering mechanism through other through holes 21.

[0044] The above has introduced in detail a water area environmental protection dredging device provided by the present invention. The description of the specific embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. An environmental protection dredging equipment for water areas, characterized in that: include: A mud suction hood (1), wherein a driving motor (11) is fixed to the top of the mud suction hood (1), and a rotating shaft (12) is installed at the power output end of the driving motor (11); A filter mechanism (2), the filter mechanism (2) is fixedly mounted inside the mud suction cover (1), a plurality of through holes (21) are provided on the filter mechanism (2), and the mud suction cover (1) is provided with a suction pipe (13) above the filter mechanism (2); A mincing impeller (3), wherein the free end of the rotating shaft (12) passes through the mud suction cover (1) and the filter mechanism (2) and is fixedly connected to the mincing impeller (3) below the filter mechanism (2); A pressing mechanism (4), the pressing mechanism comprising a connecting rod (41) in transmission connection with the rotating shaft (12), the central axis of the connecting rod (41) being parallel to the inner wall of the filter mechanism (2) and being located inside the filter mechanism (2), a plurality of rotating blocks (42) being rotatably mounted on the connecting rod (41), a plurality of protrusions (43) being provided on the rotating blocks (42), the protrusions (43) corresponding to the through holes (21); A scraping mechanism, comprising a scraper (5) transmission-connected to a rotating shaft (12), wherein the scraper (5) is located outside the filter mechanism (2) and abuts against the filter mechanism (2).

2. The water area environmental protection dredging equipment according to claim 1, characterized in that: A speed reduction mechanism is installed on the rotating shaft (12), and the rotating shaft (12) is connected to the pressing mechanism (4) and the scraping mechanism via the speed reduction mechanism.

3. The water area environmental protection dredging equipment according to claim 2, characterized in that: The reduction mechanism is a planetary gear train, which includes a sun gear, planetary gears, a planet carrier and an inner ring gear; A connecting cylinder is rotatably mounted on the rotating shaft (12); The planetary frame is fixedly connected to the mud suction cover (1), and the planetary gear is rotatably mounted on the planetary frame; The sun gear is fixedly connected to the rotating shaft (12); The inner gear ring is fixedly connected to the connecting cylinder; The connecting rod (41) and the scraper (5) are both fixedly connected to the connecting cylinder.

4. An aquatic environmental protection dredging device according to claim 1, characterized in that: The filter mechanism (2) is cylindrical with an open upper end and a closed lower end, and the through hole (21) is provided on the side wall of the filter mechanism (2).

5. The water area environmental protection dredging equipment according to claim 4, characterized in that: The filtering mechanism (2) is in a conical structure that is larger at the top and smaller at the bottom.

6. The water area environmental protection dredging equipment according to claim 1, characterized in that: The convex block (43) is hemispherical, and the through hole (21) is circular.

7. An aquatic environmental protection dredging device according to claim 5, characterized in that: The scraper (5) is inclined from top to bottom toward the rotation direction of the rotation shaft (12).

8. The water area environmental protection dredging equipment according to claim 7, characterized in that: The scraper (5) is inclined from inside to outside toward the rotation direction of the rotation shaft (12).

9. The water area environmental protection dredging equipment according to claim 1, characterized in that: A sliding ring (10) is fixedly mounted on the inner wall of the mud suction hood (1) at the free end of the scraper (5); The scraper (5) is provided with a sliding groove (50), and the sliding ring (10) is inserted into the sliding groove (50).

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