Riverbed dredging device for environmental protection engineering
By introducing a sealed cover, cleaning rod, and brush structure into the riverbed dredging device, the clogging problem during silt extraction was solved, achieving efficient silt removal from the riverbed and improving the device's practicality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NOVES (WUHAN) ECOLOGICAL ENVIRONMENT MATERIALS CO LTD
- Filing Date
- 2024-05-17
- Publication Date
- 2026-07-24
AI Technical Summary
Existing riverbed silt removal devices used for river management are easily blocked by gravel, weeds, and other debris during the silt extraction process, and there is a lack of effective anti-blocking mechanisms.
A structure including a mud suction pipe, a sealing cover, a motor, a transmission gear, a cleaning rod, and brush bristles was designed. The motor drives the transmission gear to rotate the sealing cover, which in turn drives the cleaning rod and brush bristles to sweep the screen plate, removing adsorbed foreign objects, and the harder mud lumps are processed by the crushing blades.
This effectively avoids clogging of the sludge suction pipe, improves dredging efficiency, and enhances the practicality of the device.
Smart Images

Figure CN224549228U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of riverbed dredging technology, specifically a riverbed dredging device for environmental protection engineering. Background Technology
[0002] Water conservancy projects are engineering projects built to control and regulate surface water and groundwater in nature to achieve the purpose of eliminating harm and promoting benefits. They are also called water engineering projects. Silt contains a large number of harmful substances and is not conducive to the operation of water conservancy projects. Therefore, water conservancy projects need to clean up the silt in the riverbed.
[0003] In the prior art, Chinese Patent No. CN212104263U discloses a riverbed silt removal device for river remediation. This device includes a chassis with a welding plate welded to its top. A rectangular groove is formed on the top of the welding plate. A hydraulic pump is fixedly connected to the bottom inner wall of the rectangular groove. An adjusting plate is fixedly connected to the output shaft of the hydraulic pump. The adjusting plate is slidably installed within the rectangular groove. A top plate is welded to the top of the adjusting plate. A silt tank is welded to the bottom of the top plate. A sludge pump is fixedly connected to one side of the bottom of the silt tank. Multiple filter holes are formed at the bottom of the silt tank. A feed pipe is fixedly connected to the inlet of the sludge pump. A first hole is formed on the top of the top plate. This invention is practical and can remove moisture from the silt to a large extent during the cleaning process, facilitating silt removal and achieving good cleaning results.
[0004] However, the above solution still has some shortcomings. For example, the feed pipe used for dredging silt lacks a clogging prevention mechanism, which makes it easy to be blocked by gravel and weeds during the silt extraction process. In view of this, this utility model proposes a riverbed dredging device for environmental protection engineering. Utility Model Content
[0005] The purpose of this invention is to provide a riverbed dredging device for environmental engineering projects, in order to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a riverbed dredging device for environmental protection engineering, comprising a dredging pipe, an installation pipe fixedly connected to the lower end of the dredging pipe, an installation ring provided inside the installation pipe, a mesh plate fixedly connected to the inner ring surface of the installation ring, a sealing cover fitted on the surface of the dredging pipe, a motor fixedly installed on the upper surface of the installation pipe, a transmission gear fixedly connected to the output shaft of the motor, an annular rack groove corresponding to the transmission gear being opened on the inner ring surface of the sealing cover, a cleaning rod fixedly connected to the left inner wall of the sealing cover, and brush bristles provided on the upper surface of the cleaning rod.
[0007] Preferably, the surface of the mounting ring is provided with external threads, and the inner ring surface of the mounting tube is provided with a threaded groove. The mounting ring is connected to the internal threads of the mounting tube through the external threads and the threaded groove.
[0008] Preferably, the upper surface of the sealing cover is provided with an installation opening, and the inner wall of the installation opening and the inner ring surface of the sealing cover are both embedded with sealing bearings. The inner ring surfaces of the two sealing bearings are fixedly connected to the surface of the mud pumping pipe and the surface of the installation pipe, respectively.
[0009] Preferably, the transmission gear meshes with the inner wall of the annular rack groove, and the output shaft of the motor is connected to the sealing cover through the transmission gear and the annular rack groove.
[0010] Preferably, the number of bristles is several, and the several bristles are equidistantly arranged on the upper surface of the cleaning rod, with the end of the bristle away from the cleaning rod overlapping the surface of the mesh plate.
[0011] Preferably, a crushing blade is fixedly connected to the lower end of the sealing cover.
[0012] Preferably, the number of the crushing blades is several, and the several crushing blades are arranged in a circumferential array at the lower end of the sealing cover.
[0013] Beneficial effects
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] 1. This utility model, by setting up a mesh plate, cleaning rod, and brush bristles, can prevent the mud suction pipe from being blocked by foreign objects such as gravel when pumping sludge. At the same time, the operation of the motor drives the sealing cover to rotate through the transmission gear and the annular rack groove. The rotation of the sealing cover drives the cleaning rod and brush bristles to sweep the mesh plate, removing foreign objects such as water plants adsorbed on the surface of the mesh plate and preventing them from clogging the mesh plate.
[0016] 2. By setting up a sealing cover and crushing blades, the sealing cover drives the crushing blades to rotate synchronously during the rotation of the crushing cover. The rotating crushing blades can crush harder mud blocks, further improving the practicality of the device. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0019] Figure 2 This is a schematic diagram of the orthographic section of the present invention;
[0020] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;
[0021] Figure 4 This is a bottom view of the structure of this utility model.
[0022] In the diagram: 1. Sludge suction pipe; 2. Installation pipe; 3. Installation ring; 4. Mesh plate; 5. Sealing cover; 6. Motor; 7. Transmission gear; 8. Annular rack groove; 9. Cleaning rod; 10. Brush bristles; 11. Sealed bearing; 12. Crushing blade. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] According to the appendix Figure 1-4 As shown, this utility model embodiment provides a riverbed dredging device for environmental protection engineering, including a dredging pipe 1, which is connected to an external dredging device. An installation pipe 2 is fixedly connected to the lower end of the dredging pipe 1. An installation ring 3 is provided inside the installation pipe 2. A mesh plate 4 is fixedly connected to the inner ring surface of the installation ring 3. A sealing cover 5 is fitted on the surface of the dredging pipe 1. A motor 6 is fixedly installed on the upper surface of the installation pipe 2. A transmission gear 7 is fixedly connected to the output shaft of the motor 6. An annular rack groove 8 corresponding to the transmission gear 7 is opened on the inner ring surface of the sealing cover 5. A cleaning rod 9 is fixedly connected to the left inner wall of the sealing cover 5. Brush bristles 10 are provided on the upper surface of the cleaning rod 9.
[0025] The surface of the mounting ring 3 is provided with external threads, and the inner ring surface of the mounting tube 2 is provided with threaded grooves. The mounting ring 3 is connected to the internal threads of the mounting tube 2 through the external threads and threaded grooves. The setting of external threads and threaded grooves facilitates the replacement and installation / removal of the mounting ring 3 and the mesh plate 4.
[0026] An installation opening is provided on the upper surface of the sealing cover 5. Sealing bearings 11 are embedded in both the inner wall of the installation opening and the inner ring surface of the sealing cover 5. The inner ring surfaces of the two sealing bearings 11 are fixedly connected to the surface of the mud suction pipe 1 and the surface of the installation pipe 2, respectively. The sealing bearings 11 are provided to prevent water from entering the sealing cover 5 and affecting the motor 6.
[0027] The transmission gear 7 meshes with the inner wall of the annular rack groove 8. The output shaft of the motor 6 is connected to the sealing cover 5 through the transmission gear 7 and the annular rack groove 8. There are several bristles 10, which are equidistantly arranged on the upper surface of the cleaning rod 9, and the end of the bristle 10 away from the cleaning rod 9 overlaps with the surface of the mesh plate 4.
[0028] The lower end of the sealing cover 5 is fixedly connected with a crushing blade 12. There are several crushing blades 12 arranged in a circumferential array at the lower end of the sealing cover 5. By setting the crushing blades 12, when the sealing cover 5 rotates, it can drive the crushing blades 12 to crush the mud.
[0029] In the use of this utility model, a riverbed dredging device for environmental engineering can prevent the dredging pipe 1 from being blocked by gravel and other foreign objects when pumping silt under the action of the mesh plate 4. At the same time, the operation of the motor 6 drives the sealing cover 5 to rotate through the transmission gear 7 and the annular rack groove 8. The rotation of the sealing cover 5 drives the cleaning rod 9 and the brush bristles 10 to sweep and brush the mesh plate 4, removing water plants and other foreign objects adsorbed on the surface of the mesh plate 4 and preventing them from clogging the mesh plate 4. During the rotation of the sealing cover 5, the crushing blade 12 rotates synchronously, and the rotating crushing blade 12 can crush harder mud blocks.
[0030] 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 preferred examples and are not intended to limit the 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. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A riverbed dredging device for environmental protection engineering, characterized in that: The device includes a mud-drawing pipe (1), an installation pipe (2) fixedly connected to the lower end of the mud-drawing pipe (1), an installation ring (3) is provided inside the installation pipe (2), a mesh plate (4) is fixedly connected to the inner ring surface of the installation ring (3), a sealing cover (5) is fitted on the surface of the mud-drawing pipe (1), a motor (6) is fixedly installed on the upper surface of the installation pipe (2), a transmission gear (7) is fixedly connected to the output shaft of the motor (6), an annular rack groove (8) corresponding to the transmission gear (7) is opened on the inner ring surface of the sealing cover (5), a cleaning rod (9) is fixedly connected to the left inner wall of the sealing cover (5), and bristles (10) are provided on the upper surface of the cleaning rod (9).
2. The riverbed dredging device for environmental protection engineering according to claim 1, characterized in that: The surface of the mounting ring (3) is provided with external threads, and the inner ring surface of the mounting tube (2) is provided with a threaded groove. The mounting ring (3) is connected to the internal thread of the mounting tube (2) through the external threads and the threaded groove.
3. The riverbed dredging device for environmental protection engineering according to claim 1, characterized in that: The upper surface of the sealing cover (5) is provided with an installation opening. The inner wall of the installation opening and the inner ring surface of the sealing cover (5) are both fitted with sealing bearings (11). The inner ring surfaces of the two sealing bearings (11) are fixedly connected to the surface of the mud pumping pipe (1) and the surface of the installation pipe (2), respectively.
4. The riverbed dredging device for environmental protection engineering according to claim 1, characterized in that: The transmission gear (7) meshes with the inner wall of the annular rack groove (8), and the output shaft of the motor (6) is connected to the sealing cover (5) through the transmission gear (7) and the annular rack groove (8).
5. A riverbed dredging device for environmental protection engineering according to claim 1, characterized in that: The number of bristles (10) is several, and the several bristles (10) are equidistantly arranged on the upper surface of the cleaning rod (9), and the end of the bristle (10) away from the cleaning rod (9) overlaps with the surface of the mesh plate (4).
6. A riverbed dredging device for environmental protection engineering according to claim 1, characterized in that: A crushing blade (12) is fixedly connected to the lower end of the sealing cover (5).
7. A riverbed dredging device for environmental protection engineering according to claim 6, characterized in that: The number of the crushing blades (12) is several, and the several crushing blades (12) are arranged in a circumferential array at the lower end of the sealing cover (5).