Dredging equipment
The dredging device with screw drills and a slider addresses flooding in small rivers by clearing mud and debris, enhancing water flow management.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Utility models
- Current Assignee / Owner
- 铃木信一
- Filing Date
- 2025-12-08
- Publication Date
- 2026-04-28
AI Technical Summary
Small rivers near residential areas experience flooding during high water volume events due to accumulated mud and plant growth, obstructing water flow.
A dredging device with two screw drills and a slider is designed to scoop up mud and debris, utilizing a self-propelled crawler for navigation, with a replaceable sludge tank and adjustable tires for operation in small rivers.
The device effectively reduces the risk of flooding by regularly removing obstructions, ensuring smooth water flow even during extreme weather conditions.
Smart Images

Figure 0003255663000001_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a dredging device for small rivers.
Background Art
[0002] Even if small rivers flowing near residential areas are protected by revetment works, sand and mud accumulate over time, and plants such as reeds grow, causing obstruction to the water flow.
Disclosure of the Invention
Problems to be Solved by the Invention
[0003] During times of increased water volume such as during typhoons or heavy rains, due to mud and plants growing there, the water flow struggles and there is a risk of flooding.
Means for Solving the Problems
[0004] An invention of a dredging device for small rivers with a structure that scoops up mud etc. using two screw drills and a slider for dredging mud etc. in small rivers has been devised.
Effects of the Invention
[0005] Even if used at a frequency of about once every few years, by using the dredging device for small rivers with a structure that scoops up mud etc. using two screw drills and a slider of the present invention to dredge the mud etc. in the river, the risk of river flooding can be significantly reduced.
Best Mode for Carrying Out the Invention
[0006] The present invention is composed of a main body frame, two screw drills and a slider, a power unit, a mud tank, lateral tires, and a self-propelled crawler.
[0007] The main body frame is box-shaped and sized like a small truck so that it can operate in small rivers.
[0008] The two screw drills and slider are positioned at the front of the main frame, designed to penetrate sludge and other materials at an angle. The screw drills rotate to scoop up sludge and other materials from small rivers, and then, while still rotating, move the sludge and other materials upward along the slider before dropping them into the sludge tank.
[0009] The power unit is located beneath the two angled screw drills and slider, and is the power source for the two screw drills and the self-propelled crawler.
[0010] The sludge tank is positioned at the rear of the main frame, and the tank is designed to be replaceable, allowing it to be lifted from a road next to a small river.
[0011] The sideways-facing tires are positioned on both sides of the main frame to adjust the distance between the main frame and the revetment of small rivers.
[0012] The self-propelled crawler is positioned at the bottom of the main frame to adjust the distance from the riverbed of small rivers, and also to adjust the self-propulsion and direction of travel. [Industrial applicability]
[0013] The dredging device for small rivers according to this invention can be mass-produced industrially and therefore has industrial applicability. [Brief explanation of the drawing]
[0014] [Figure 1] This is a diagram showing the main frame, two screw drills, and slider of the small river dredging device according to the present invention. [Figure 2] This is a diagram showing the main frame and power unit of the small river dredging device according to the present invention. [Figure 3] This is a diagram of the main frame and sludge tank of the small river dredging device according to the present invention. [Figure 4] This is a diagram of the main frame and sideways tire of a small river dredging device according to the present invention. [Figure 5] This is a diagram of the main frame and self-propelled crawler of a small river dredging device according to the present invention. [Explanation of Symbols]
[0015] 1. Main frame 2 screw drills and sliders 3 Power Unit 4. Sludge tank 5 Sideways tires 6 Self-propelled crawler
Claims
[Claim 1] A small river dredging device with a structure that uses two screw drills and a slider to scoop up sludge and other debris.