Marine propeller net cutter

By designing a detachable fishing net cutter structure, the problem of replacing the entire cutting edge when it becomes dull or damaged is solved, enabling quick replacement of the cutter head and reducing resource waste and operating costs.

CN224511432UActive Publication Date: 2026-07-17DONGTAI JIUTIAN MACHINERY MANUFACTURING CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGTAI JIUTIAN MACHINERY MANUFACTURING CO LTD
Filing Date
2025-08-10
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The cutting edges of existing marine propulsion net cutters are prone to dulling or damage during use, leading to the need for complete replacement, resulting in resource waste and increased operating costs.

Method used

A detachable fishing net cutter structure was designed, including a handle, a fixing component, and a cutter head. The handle and cutter head can be separated through the fixing component, allowing for individual replacement of damaged or dull cutter heads, avoiding the need for complete replacement.

Benefits of technology

It enables quick replacement of the cutting head, reduces resource waste and operating costs, and improves the maintenance efficiency and economy of the equipment.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224511432U_ABST
    Figure CN224511432U_ABST
Patent Text Reader

Abstract

The utility model discloses a fishing net cutter for marine propeller, relates to fishing net cutter field, including fishing net cutter main part, fishing net cutter main part is by handle, fixed component, tool bit and is composed, handle is by support base plate and installation connecting plate and is composed, and installation connecting plate fixed mounting is in one end of support base plate, and fixed component installs on installation connecting plate, and fixed component is by fixed screw rod, internal hexagon board, mobile base plate and square clamping plate and is composed, through setting up the fishing net cutter main part by handle, fixed component and tool bit, handle and tool bit can split through fixed component, when tool bit cutting edge becomes blunt or is damaged, can individually dismount old tool bit and replace new tool bit, need not to replace whole fishing net cutter main part, effectively reduces resource waste and use cost, simultaneously, when replacing tool bit, only need to utilize internal hexagon tool rotation fixed screw rod, make mobile base plate drive square clamping plate remove, can quick dismount tool bit to make tool bit's replacement more simple and convenient.
Need to check novelty before this filing date? Find Prior Art

Claims

1. A marine propulsion net cutter, comprising a net cutter body (1), characterized in that: The main body (1) of the fishing net cutter consists of a handle (4), a fixing component (5), and a cutter head (6). The handle (4) consists of a support base plate (7) and a mounting connecting plate (8). The mounting connecting plate (8) is fixedly installed on one end of the support base plate (7). The fixing component (5) is installed on the mounting connecting plate (8). The fixing component (5) consists of a fixing screw (10), an internal hexagonal plate (11), a movable base plate (12), and a square clamping plate (13). There are two internal hexagonal plates (11) and they are fixedly installed on both ends of the fixing screw (10). There are two movable base plates (12) and they are symmetrically installed on the fixing screw (10). There are four square clamping plates (13) and they are symmetrically fixedly installed on one end of the two movable base plates (12). The cutter head (6) is installed on the fixing component (5).

2. A marine propeller cutter fishing net knife according to claim 1, characterized in that: The support base plate (7) on the handle (4) is fixedly mounted on the hull assembly (2) by bolts, and the hull assembly (2) is equipped with a propeller (3).

3. A marine propeller cutter fishing net knife according to claim 2, characterised in that: The mounting plate (8) on the handle (4) has a mounting groove (9) through which the mounting plate (8) passes.

4. A marine propeller cutter fishing net knife according to claim 3, characterised in that: The fixing screw (10) on the fixing component (5) is rotatably installed in the mounting groove (9) opened on the mounting connection plate (8). The movable base plate (12) is provided with a threaded hole (14), and the movable base plate (12) is installed on the fixing screw (10) through the threaded hole (14).

5. A marine propeller cutter fishing net knife according to claim 4, characterised in that: The cutter head (6) has a fitting groove (15) at one end, and two connecting grooves (16) are symmetrically opened at both ends of the cutter head (6). The fitting groove (15) and the connecting groove (16) are connected to each other. Four fixing slots (17) are symmetrically opened on the inner wall of the fitting groove (15) and on both sides of the two connecting grooves (16).

6. A marine propeller cutter fishing net knife according to claim 5, characterised in that: The cutting head (6) is fitted onto two movable base plates (12) on the fixed component (5) through the fitting groove (15), and the cutting head (6) is fitted onto two internal hexagon plates (11) through two connecting grooves (16). The cutting head (6) is also fitted onto four square plates (13) through four fixed slots (17).