A dredging device for hydraulic engineering

Abstract

The utility model discloses a kind of dredging devices for hydraulic engineering belong to hydraulic engineering dredging equipment technical field, including suction pipe, the suction pipe lower end is equipped with anti-blocking sleeve, the lower end of anti-blocking sleeve is fixedly connected with air bag, the upper end of air bag is fixedly connected with magnetic supporting plate, the upper end of magnetic supporting plate is fixedly connected with dredging rod, and dredging rod is located in suction pipe, the inner wall of suction pipe is fixedly connected with electromagnetic ring in anti-blocking sleeve side, it can be realized by anti-blocking sleeve and air bag effectively solve the problem that traditional dredging device is easily entangled by water grass, stone blockage, air bag enters water by buoyancy extrusion anti-blocking sleeve, make elastic bending strip expand outward and prop open barrier net, both can prop open water grass at the bottom of suction pipe and avoid suction, and also can pass through barrier net and filter stone block in silt, while elastic structure ensures automatic recovery when not using, greatly improve the adaptability of device in complex water area.

Description

Technical Field

[0001] This utility model relates to the technical field of dredging equipment for water conservancy projects, and more specifically, to a dredging device for water conservancy projects. Background Technology

[0002] In water conservancy projects, siltation in water bodies such as rivers and reservoirs can lead to problems such as reduced water storage capacity, deterioration of water quality, and impaired flood discharge. Therefore, dredging is an important part of water conservancy maintenance.

[0003] Chinese Patent Publication No. CN221798554U discloses a sludge removal device. This patent uses a stirring cage to agitate sludge. A stirring blade assembly is housed within a receiving cavity, providing protection against direct contact with hard objects in the sludge. The blade assembly and blade holder are positioned so that the blade tip is located outside the stirring cage body, and the blade rotates in the opposite direction to the cage. When aquatic plants become entangled on the cage surface, the stirring blade assembly cuts them off, preventing flexible materials like aquatic plants from tangling and hindering sludge removal. Furthermore, a filter screen is incorporated to screen the sludge before it enters the suction pipe, preventing large pieces of sludge or stones from clogging the pipe.

[0004] However, in the process of cutting aquatic plants, when there are many aquatic plants, the aquatic plants and silt will wrap around the outer end of the blade, causing the aquatic plant assembly to become entangled and lose its function. Furthermore, after the suction pipe sucks in the silt mixed with aquatic plants, it is more likely to cause the pipe to become blocked. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] To address the problems existing in the prior art, the purpose of this utility model is to provide a dredging device for water conservancy projects. It can effectively solve the problems of traditional dredging devices being easily entangled by aquatic plants and blocked by stones by using an anti-clogging sleeve and an airbag. After the airbag enters the water, it uses buoyancy to squeeze the anti-clogging sleeve, causing the elastic bending strip to expand outward and open the baffle net. This can not only open up the aquatic plants at the bottom of the suction pipe to prevent them from being sucked in, but also filter stones in the silt through the baffle net. At the same time, the elastic structure ensures that it automatically returns to its original shape when not in use, which greatly improves the adaptability of the device in complex waters.

[0007] 2. Technical Solution

[0008] To solve the above problems, the present invention adopts the following technical solution.

[0009] A dredging device for water conservancy projects includes a suction pipe with an anti-clogging sleeve installed at its lower end. An airbag is fixedly connected to the lower end of the anti-clogging sleeve, and a magnetic support plate is fixedly connected to the upper end of the airbag. A dredging rod is fixedly connected to the upper end of the magnetic support plate and is located inside the suction pipe. An electromagnetic ring is fixedly connected to the inner wall of the suction pipe near the anti-clogging sleeve. By extending the suction pipe into the bottom of the water so that the anti-clogging sleeve is close to the silt, after the airbag enters the water, its buoyancy is used to move close to the suction pipe and squeeze the anti-clogging sleeve. This causes the anti-clogging sleeve to be compressed into a flat shape and expand outward, thus opening up the aquatic plants at the bottom of the suction pipe and preventing the aquatic plants from being sucked in during dredging. At the same time, the electromagnetic ring is activated and magnetized to repel the magnetic support plate, causing the magnetic support plate to push the anti-clogging sleeve back to its original position and drive the dredging rod to move inside the suction pipe, thereby moving and clearing the silt inside the suction pipe and preventing silt from sticking to the inner wall of the suction pipe and causing blockage.

[0010] Furthermore, the anti-clogging sleeve includes multiple curved strips, which are installed between the suction pipe and the anti-clogging sleeve. Each of the multiple curved strips has a groove at one end close to each other, and a baffle is fixedly connected between the multiple curved strips. The baffle is fixedly connected to the inner wall of the groove. When the curved strips are subjected to force, they are squeezed and bent outward, and at the same time, the baffle is pulled open to filter stones in the suctioned silt and block smaller aquatic plants.

[0011] Furthermore, the curved strip is an elastic baffle strip, and the baffle mesh is an elastic baffle mesh. The elastic setting of the curved strip allows the anti-clogging sleeve to automatically recover after being flattened and expanded and when not in use. The elastic setting of the baffle mesh allows it to be stretched out when expanded by the curved strip, thereby opening the mesh opening to achieve the filtering effect and allowing silt to pass through.

[0012] Furthermore, the unblocking rod includes a central rod, which is fixedly connected to the upper end of the magnetic support plate. Multiple sets of miniature support rods are fixedly connected to the outer end of the central rod. A scraper is fixedly connected to the end of each miniature support rod away from the central rod. The central rod is driven by the magnetic support plate to drive the multiple miniature support rods and scraper to scrape and clean the inner wall of the suction pipe, reducing the adhesion of sludge to the inner wall of the suction pipe.

[0013] Furthermore, the miniature support rods are spirally distributed along the outer end of the central rod. This spiral distribution allows the unblocking rod to thoroughly clean the inner wall of the suction pipe during movement.

[0014] Furthermore, the outer end of the electromagnetic ring is wrapped with a waterproof sleeve to protect the electromagnetic ring and prevent leakage when the electromagnetic ring is activated.

[0015] 3. Beneficial Effects

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] (1) This solution effectively solves the problem that traditional dredging devices are easily entangled by aquatic plants and blocked by stones by using anti-clogging sleeve and airbag. After the airbag enters the water, it uses buoyancy to squeeze the anti-clogging sleeve, causing the elastic bending strip to expand outward and open the baffle. This can not only open up the aquatic plants at the bottom of the suction pipe to prevent them from being sucked in, but also filter stones in the silt through the baffle. At the same time, the elastic structure ensures that it automatically recovers when not in use, which greatly improves the adaptability of the device in complex waters.

[0018] (2) In this scheme, the combination of the dredging rod, electromagnetic ring and magnetic support plate forms a dynamic dredging mechanism, which significantly reduces the risk of sludge adhesion and blockage on the inner wall of the suction pipe. The spirally distributed micro support rod and scraper move along the inner wall of the suction pipe under the drive of the magnetic support plate, which can completely scrape off the adhered sludge. Compared with traditional manual dredging, it is more efficient and thorough, reduces downtime maintenance caused by blockage, and improves the continuity of dredging operations.

[0019] (3) The waterproof sleeve outside the electromagnetic ring in this scheme avoids the risk of leakage and ensures the safety of underwater operations; the combination of the elastic bending strip and the baffle not only meets the requirements of filtration and anti-entanglement, but also realizes the automatic reset of the structure through its own elasticity, reducing component wear and maintenance costs, and enabling the device to maintain stable performance in long-term use. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a front sectional view of the present invention.

[0022] Figure 3 This is a top view cross-sectional structural diagram of the anti-clogging sleeve of this utility model.

[0023] Explanation of the labels in the diagram:

[0024] 1. Suction pipe; 2. Anti-clogging sleeve; 21. Bending strip; 22. Barrier net; 3. Airbag; 4. Magnetic support plate; 5. Unblocking rod; 51. Center rod; 52. Miniature support rod; 53. Scraper; 6. Electromagnetic ring. Detailed Implementation

[0025] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and 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, and therefore should not be construed as a limitation of 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.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable 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; 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 according to the specific circumstances.

[0028] Example 1:

[0029] Please see Figure 1-3 A dredging device for water conservancy projects includes a suction pipe 1, an anti-clogging sleeve 2 installed at the lower end of the suction pipe 1, an airbag 3 fixedly connected to the lower end of the anti-clogging sleeve 2, a magnetic support plate 4 fixedly connected to the upper end of the airbag 3, and a dredging rod 5 fixedly connected to the upper end of the magnetic support plate 4, with the dredging rod 5 located inside the suction pipe 1. An electromagnetic ring 6 is fixedly connected to the inner wall of the suction pipe 1 near the anti-clogging sleeve 2. By using the airbag 3 to squeeze the anti-clogging sleeve 2 with buoyancy, the water plants at the bottom of the suction pipe 1 can be opened, preventing them from being sucked in and entangled. The repulsive effect between the electromagnetic ring 6 and the magnetic support plate 4 can drive the dredging rod 5 to move inside the suction pipe 1, effectively preventing silt from adhering to the inner wall and clogging, and significantly improving the anti-clogging reliability of the dredging device.

[0030] The anti-clogging sleeve 2 includes multiple curved strips 21, which are installed between the suction pipe 1 and the anti-clogging sleeve 2. Each of the multiple curved strips 21 has a groove at one end close to each other. Each of the multiple curved strips 21 is fixedly connected to a baffle 22, which is fixedly connected to the inner wall of the groove. When the curved strips 21 are subjected to force and expand, the baffle 22 can be pulled open, which can filter stones in the silt and block small aquatic plants, preventing them from entering the suction pipe 1 and causing blockage. At the same time, the groove provides a stable installation base for the baffle 22, ensuring the stability of the filtration function.

[0031] The curved strip 21 is an elastic baffle, and the baffle 22 is an elastic baffle. The elastic baffle of the curved strip 21 and the elastic baffle of the baffle 22 give the anti-clogging sleeve 2 the ability to automatically reset. After being expanded under pressure, it can automatically recover without additional operation. Moreover, when the elastic baffle 22 expands, the mesh opens, ensuring that the sludge passes through smoothly without affecting the filtration effect, thus improving the ease of use and adaptability of the device.

[0032] The unblocking rod 5 includes a central rod 51, which is fixedly connected to the upper end of the magnetic support plate 4. Multiple sets of miniature support rods 52 are fixedly connected to the outer end of the central rod 51. A scraper 53 is fixedly connected to the end of the miniature support rod 52 away from the central rod 51. When the central rod 51 drives the miniature support rods 52 and the scraper 53 to move, the scraper 53 can directly scrape off the sludge adhering to the inner wall of the suction pipe 1. The distribution of multiple sets of miniature support rods 52 expands the cleaning range and reduces the risk of blockage caused by sludge residue.

[0033] The miniature support rods 52 are spirally distributed along the outer end of the central rod 51. This spiral distribution of the miniature support rods 52 along the outer end of the central rod 51 allows the unblocking rod 5 to form a spiral cleaning trajectory on the inner wall of the suction pipe 1 during movement, providing more comprehensive coverage and avoiding blind spots that may occur with a straight distribution, thus further improving the thoroughness of cleaning the sludge on the inner wall.

[0034] The outer end of the electromagnetic ring 6 is wrapped with a waterproof sleeve. The waterproof sleeve structure at the outer end of the electromagnetic ring 6 can effectively isolate the water from the electromagnetic ring 6, prevent leakage when the electromagnetic ring 6 is activated underwater, ensure the safety of the device, and at the same time avoid water corrosion of the electromagnetic ring 6, thus extending its service life.

[0035] Working principle:

[0036] When the suction pipe 1 is inserted underwater and approaches the silt, the airbag 3 enters the water and, with the help of buoyancy, pushes the anti-clogging sleeve 2 upward. This causes the elastic bending strip 21 in the anti-clogging sleeve 2 to expand outward under force, simultaneously pulling open the elastic baffle 22 connected to the groove of the bending strip 21. At this time, the mesh of the baffle 22 opens, which can both prop open the aquatic plants at the bottom of the suction pipe 1 to prevent them from being sucked in and tangled, and filter out stones and small aquatic plants in the silt to prevent them from entering the suction pipe 1. When it is necessary to unclog or reset, the electromagnetic ring 6 on the inner wall of the suction pipe 1 is activated under the protection of the waterproof sleeve at its outer end. The magnetic force generated by the active element repels the magnetic support plate 4, pushing it downwards and causing the elastic bending strip 21 and the baffle 22 of the anti-blocking sleeve 2 to recover on their own. At the same time, the magnetic support plate 4 drives the unblocking rod 5 to move inside the suction pipe 1. The central rod 51 of the unblocking rod 5 drives multiple sets of micro support rods 52 and scrapers 53 spirally distributed along its outer end to form a comprehensive spiral scraping of the inner wall of the suction pipe 1, removing the adhering sludge. This achieves the coordinated work of anti-entanglement, anti-blocking and dynamic unblocking, ensuring the smooth progress of the dredging operation.

[0037] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A dredging device for water conservancy projects, comprising a suction pipe (1), characterized in that: The lower end of the suction pipe (1) is equipped with an anti-blocking sleeve (2), and the lower end of the anti-blocking sleeve (2) is fixedly connected to an airbag (3). The upper end of the airbag (3) is fixedly connected to a magnetic support plate (4), and the upper end of the magnetic support plate (4) is fixedly connected to a dredging rod (5). The dredging rod (5) is located inside the suction pipe (1). An electromagnetic ring (6) is fixedly connected to the inner wall of the suction pipe (1) near the anti-blocking sleeve (2).

2. The device for dredging according to claim 1, characterized in that: The anti-clogging sleeve (2) includes multiple curved strips (21), which are installed between the suction pipe (1) and the anti-clogging sleeve (2). Each of the multiple curved strips (21) has a groove at one end close to each other. Each of the multiple curved strips (21) is fixedly connected with a baffle (22), and the baffle (22) is fixedly connected to the inner wall of the groove.

3. The device for dredging according to claim 2, characterized in that: The curved strip (21) is an elastic baffle, and the baffle net (22) is an elastic baffle net.

4. The device for dredging according to claim 1, characterized in that: The unblocking rod (5) includes a central rod (51), which is fixedly connected to the upper end of the magnetic support plate (4). Multiple sets of miniature support rods (52) are fixedly connected to the outer end of the central rod (51), and a scraper (53) is fixedly connected to the end of the miniature support rod (52) away from the central rod (51).

5. The device for dredging according to claim 4, characterized in that: Multiple sets of the micro-support rods (52) are spirally distributed along the outer end of the central rod (51).

6. The device for dredging according to claim 1, characterized in that: The outer end of the electromagnetic ring (6) is wrapped with a waterproof sleeve.

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