Quick release underwater cutter assembly

CN224764406UActive Publication Date: 2026-09-18QUANZHOU HONGQISHENG MACHINERY CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202521987090.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-16
Publication Date
2026-09-18
Estimated Expiration
2035-09-16

AI Technical Summary

Benefits of technology

[0013] The quick-release underwater cutting tool assembly described in this utility model significantly improves the efficiency of blade replacement and ease of operation by setting up modular quick-release blades, electric telescopic adjustment, and an adaptive fixing component based on a ball head and vacuum suction cup. It also enhances the adaptability of the equipment to different working surfaces and complex underwater environments. At the same time, the overall structure takes into account both waterproofness and functionality, making underwater cutting operations more flexible, stable, and efficient.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224764406U_ABST
    Figure CN224764406U_ABST
Patent Text Reader

Abstract

The utility model discloses a quick detachable underwater cutter assembly relates to underwater cutting equipment related field, including cutter assembly, telescopic component, fixed component, cutter assembly rear end is fixedly connected with telescopic component, telescopic component rear end is fixedly connected with fixed component, and cutter assembly still includes: waterproof motor, waterproof motor rear end is fixedly connected with telescopic component, the seat of knife, the seat of knife is fixedly connected on waterproof motor front end drive shaft, the screw groove is equipped in the middle part of seat of knife, the fixed link of location, the fixed link of location is fixedly connected in seat of knife front end, through having set modularization's quick detachable blade, electric telescopic adjustment and based on ball head and vacuum chuck's self -adaptation fixed component, has improved blade replacement efficiency and operation convenience significantly, has strengthened the adaptability of equipment to different operation surface and complex underwater environment, and the overall structure has considered waterproofness and functionality simultaneously, makes underwater cutting operation more nimble, stable and efficient.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of underwater cutting equipment, specifically a quick-release underwater cutting blade assembly. Background Technology

[0002] Underwater cutting refers to the process of dividing metallic or non-metallic materials in an aquatic environment. It is divided into two categories: hot cutting and cold cutting. Hot cutting includes methods such as oxygen-flame cutting, electric arc-oxygen cutting, and plasma arc cutting. Cold cutting mainly includes mechanical cutting and high-pressure water jet technology. This process is applicable to fields such as ship repair, marine engineering, and nuclear facility maintenance. Operation techniques include support cutting and arc cutting.

[0003] For example, an underwater cutting machine for ecological river channels, as described in authorization announcement number CN204094243U, includes a support baffle, a machine body, a connecting box, and cutting blades. The connecting box has a drive wheel and a driven wheel inside. The driven wheel is connected to the drive wheel via a belt, and the driven wheel is connected to the cutting blades. The machine body has a hydraulic system and an underwater propulsion system inside. The hydraulic system includes a hydraulic cylinder, and a piston rod is installed inside the hydraulic cylinder. The piston rod is connected to a clutch, and the clutch is connected to the drive wheel. An oil inlet pipe and an oil outlet pipe are respectively installed on both sides of the hydraulic cylinder. The underwater propulsion system includes a drainage trough and a power unit. Water inlets are installed on both sides of the drainage trough. The power unit includes a motor, a worm gear, and blades. Utility Model Content

[0004] Therefore, in order to overcome the above-mentioned shortcomings, this utility model provides a quick-release underwater cutting tool assembly.

[0005] This invention is implemented by constructing a quick-release underwater cutting tool assembly. The device includes a cutting tool assembly, a telescopic assembly, and a fixing assembly. The rear end of the cutting tool assembly is fixedly connected to the telescopic assembly, and the rear end of the telescopic assembly is fixedly connected to the fixing assembly. The cutting tool assembly further includes: a waterproof motor, the rear end of which is fixedly connected to the telescopic assembly; a blade holder, fixedly connected to the front drive shaft of the waterproof motor; a threaded groove located in the middle of the blade holder; a positioning and fixing rod, fixedly connected to the front end of the blade holder; a blade blade with a threaded groove in its middle; and a positioning and fixing slot located in the middle of the blade.

[0006] Preferably, the telescopic assembly includes: a motor mounting bracket, the central slot of which is fixedly connected to a waterproof motor; a telescopic frame, the central slot of which is slidably connected to the motor mounting bracket; a power supply, the power supply being fixedly connected to the right rear end of the telescopic frame; a controller, the controller being fixedly connected to the right upper end of the telescopic frame; a sliding rod, the sliding rod being fixedly connected to the internal slot of the telescopic frame, the sliding rod being slidably connected to the left and right ends of the motor mounting bracket; a waterproof electric push rod, the waterproof electric push rod being fixedly connected to the upper end of the telescopic frame, the lower telescopic rod of which is fixedly connected to the motor mounting bracket; and a waterproof telescopic cover, the upper end of which is fixedly connected to the telescopic frame, and the lower end of which is fixedly connected to the motor mounting bracket.

[0007] Preferably, the fixing assembly includes: a fixed support frame, which is fixedly connected to the front end of the motor fixing frame; a damper, the upper end of which is rotatably connected to the left and right ends of the fixed support frame; a telescopic waterproof cover, the upper end of which is fixedly connected to the damper; a ball head, the upper end of which is fixedly connected to the lower telescopic rod of the damper, and the upper end of which is fixedly connected to the lower end of the telescopic waterproof cover; a vacuum suction cup ball seat, the upper end of which is rotatably connected to the ball head; a rotating fixing block, the left and right ends of which are fixedly connected to the upper end of the vacuum suction cup ball seat; an air suction pipe, the lower end of which is fixedly connected to the vacuum suction cup ball seat; and an underwater vacuum pump, the underwater vacuum pump being fixedly connected to the left and right ends of the fixed support frame.

[0008] Preferably, the blade is threadedly connected to the blade holder via bolts and threaded grooves.

[0009] Preferably, the blade is slidably connected to the positioning and fixing rod and the blade holder via a positioning and fixing slot.

[0010] Preferably, the middle part of the rotating fixing block is rotatably connected to the fixed support frame.

[0011] Preferably, the front and rear ends of the underwater vacuum pump are fixedly connected to the upper end of the suction pipe.

[0012] This utility model has the following advantages: This utility model provides a quick-release underwater cutting tool assembly through improvements, which, compared with similar equipment, has the following improvements:

[0013] The quick-release underwater cutting tool assembly described in this utility model significantly improves the efficiency of blade replacement and ease of operation by setting up modular quick-release blades, electric telescopic adjustment, and an adaptive fixing component based on a ball head and vacuum suction cup. It also enhances the adaptability of the equipment to different working surfaces and complex underwater environments. At the same time, the overall structure takes into account both waterproofness and functionality, making underwater cutting operations more flexible, stable, and efficient. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the cutting component structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the telescopic component structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the fixing component structure of this utility model.

[0018] The components include: cutter assembly-1, waterproof motor-11, cutter holder-12, threaded groove-13, positioning and fixing rod-14, blade-15, positioning and fixing slot-16, telescopic assembly-2, motor fixing bracket-21, telescopic bracket-22, power supply-23, controller-24, slide rod-25, waterproof electric push rod-26, waterproof telescopic cover-27, fixing assembly-3, fixing support frame-31, damper-32, telescopic waterproof telescopic cover-33, ball head-34, vacuum suction cup ball seat-35, rotating fixing block-36, suction pipe-37, and underwater vacuum pump-38. Detailed Implementation

[0019] The following is in conjunction with the appendix Figures 1-4 The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0020] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] Example 1:

[0023] Please see Figures 1-4 This utility model discloses a quick-release underwater cutting tool assembly, comprising a cutting tool assembly 1, a telescopic assembly 2, and a fixing assembly 3. The rear end of the cutting tool assembly 1 is fixedly connected to the telescopic assembly 2, and the rear end of the telescopic assembly 2 is fixedly connected to the fixing assembly 3. The cutting tool assembly 1 also includes a waterproof motor 11 whose rear end is fixedly connected to the telescopic assembly 2, a blade holder 12 fixedly connected to the front drive shaft of the waterproof motor 11, a threaded groove 13 located in the middle of the blade holder 12, a positioning and fixing rod 14 fixedly connected to the front end of the blade holder 12, a blade 15 with a threaded groove 13 in the middle, and a positioning and fixing slot 16 located in the middle of the blade 15. The blade 15 is threadedly connected to the blade holder 12 by bolts and the threaded groove 13. Through the cooperation of the threaded groove 13, the positioning and fixing rod 14, and the positioning and fixing slot 16, the blade 15 can be quickly positioned, installed, and replaced, simplifying the maintenance process. Damaged or dull blades can be quickly replaced underwater or above water without special tools, greatly improving work efficiency and equipment uptime. The blade 15 is slidably connected to the positioning and fixing rod 14 and the blade holder 12 through the positioning and fixing slot 16.

[0024] The telescopic assembly 2 has a central slot for the motor mounting bracket 21, which is fixedly connected to the waterproof motor 11. The central slot for the telescopic frame 22 is slidably connected to the motor mounting bracket 21. The power supply 23 is fixedly connected to the right rear end of the telescopic frame 22. The controller 24 is fixedly connected to the right upper end of the telescopic frame 22. The sliding rod 25 is fixedly connected to the internal slot of the telescopic frame 22 and slidably connected to both ends of the motor mounting bracket 21. The waterproof electric push rod 26 is fixedly connected to the upper end of the telescopic frame 22, and its lower telescopic rod is fixedly connected to the motor mounting bracket 21. The upper end of the waterproof telescopic cover 27 is fixedly connected to the telescopic frame 22. The waterproof telescopic cover 27 completely encloses the entire telescopic movement mechanism, effectively preventing underwater debris and sediment from entering the moving parts, avoiding jamming, wear, and corrosion, and significantly extending the equipment's service life. The lower end of the waterproof telescopic cover 27 is fixedly connected to the motor mounting bracket 21.

[0025] This utility model provides an improved quick-release underwater cutting tool assembly, the working principle of which is as follows:

[0026] First, when using this device, place it in the work area and then connect it to an external power source to provide the necessary electrical energy for its operation.

[0027] Secondly, when this device is needed, the waterproof motor 11 can be started by controlling the controller 24. After the waterproof motor 11 is started, it can drive the blade holder 12 and its front end assembly to rotate. Then, the waterproof electric push rod 26 is controlled to start and drive the motor fixing frame 21 and its lower assembly to move up and down to the designated position, so that the blade 15 contacts the material to be cut for cutting. The waterproof telescopic cover 27 completely covers the entire telescopic movement mechanism, effectively preventing underwater debris and mud from entering the moving pair, avoiding mechanism jamming, wear and corrosion, and significantly extending the service life of the equipment. The sliding rod 25 provides a stable linear guide for the movement of the motor fixing frame 21, preventing it from twisting or deviating during operation, ensuring the stability and accuracy of the cutting process. When the blade 15 needs to be replaced, the bolt can be rotated to separate the blade holder 12 and the blade 15, and the blade 15 can be removed from the blade holder 12 for replacement.

[0028] Example 2:

[0029] Please see Figures 1-4 Compared to Embodiment 1, this utility model provides a quick-release underwater cutting knife assembly, which further includes: a fixing component 3; a fixing support frame 31 fixedly connected to the front end of a motor fixing frame 21; an upper end of a damper 32 rotatably connected to the left and right ends of the fixing support frame 31; an upper end of a telescopic waterproof cover 33 fixedly connected to the damper 32; an upper end of a ball head 34 fixedly connected to the lower end of the telescopic rod of the damper 32; an upper end of the ball head 34 fixedly connected to the lower end of the telescopic waterproof cover 33; an upper end of a vacuum suction cup ball seat 35 rotatably connected to the ball head 34; and a rotating fixing block 36 with its left and right ends connected to the vacuum suction cup ball seat 35. The upper end of the vacuum suction cup ball seat 35 is fixedly connected, and the lower end of the suction pipe 37 is fixedly connected to the vacuum suction cup ball seat 35. By rotating the fixed block 36 and rotating it to the fixed support frame 31, the operator can still adjust the overall working angle of the cutter assembly after fixing the suction cup, so that it is in the best cutting posture, which enhances the adaptability of the equipment to complex working environments. The underwater vacuum pump 38 is fixedly connected to the left and right ends of the fixed support frame 31, and the middle part of the rotating fixed block 36 is rotatably connected to the fixed support frame 31. The front and rear ends of the underwater vacuum pump 38 are fixedly connected to the upper end of the suction pipe 37.

[0030] In this embodiment:

[0031] When the device needs to be fixed, the underwater vacuum pump 38 can be started by the controller 24 when the device is placed in the designated position. The air and water in the vacuum suction cup ball seat 35 are extracted and discharged through the suction pipe 37, so that the vacuum suction cup ball seat 35 can provide an extremely stable working base for the entire device. There is no need for destructive fixing methods such as drilling or welding. The structure of the ball head 34 allows the vacuum suction cup to rotate omnidirectionally within a certain range, so that the suction cup can adaptively fit the surface with different tilt angles. The damper 32 can effectively buffer the vibration and impact generated during cutting, prevent the suction cup from falling off due to vibration, improve the fixing reliability and cutting stability. In addition, the rotatable connection between the rotating fixing block 36 and the fixed support frame 31 allows the operator to adjust the overall working angle of the cutting blade assembly after fixing the suction cup, so that it is in the optimal cutting posture, enhancing the adaptability of the equipment to complex working environments.

[0032] This utility model provides an improved quick-release underwater cutting tool assembly. By incorporating a modular quick-release blade 15, an electric telescopic adjustment mechanism, and an adaptive fixing assembly based on a ball head 34 and a vacuum suction cup, it significantly improves the efficiency of blade 15 replacement and ease of operation, enhances the equipment's adaptability to different working surfaces and complex underwater environments, and balances waterproofing and functionality in the overall structure, making underwater cutting operations more flexible, stable, and efficient.

[0033] The above describes the basic principles, main features, and advantages of this utility model. All standard parts used in this utility model can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all adopt conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and the circuit connections adopt conventional connection methods in the prior art, which will not be detailed here.

[0034] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A quick-release underwater cutting tool assembly, comprising a cutting tool assembly (1), a telescopic assembly (2), and a fixing assembly (3), wherein the rear end of the cutting tool assembly (1) is fixedly connected to the telescopic assembly (2), and the rear end of the telescopic assembly (2) is fixedly connected to the fixing assembly (3), characterized in that: The cutting blade assembly (1) also includes: A waterproof motor (11) is fixedly connected to the telescopic assembly (2) at its rear end; Tool holder (12), which is fixedly connected to the front drive shaft of the waterproof motor (11); Threaded groove (13), the threaded groove (13) is provided in the middle of the tool holder (12); Positioning and fixing rod (14), which is fixedly connected to the front end of the tool holder (12); Blade (15), wherein the blade (15) has a threaded groove (13) in the middle; A positioning and fixing slot (16) is provided in the middle of the blade (15).

2. The quick release underwater cutter assembly of claim 1, wherein: The telescopic component (2) includes: A motor mounting bracket (21) is fixedly connected to a waterproof motor (11) via a hollowed-out groove in the middle of the motor mounting bracket (21); Telescopic frame (22), the hollow groove in the middle of the telescopic frame (22) is slidably connected to the motor fixing frame (21); Power supply (23), which is fixedly connected to the right side of the rear end of the telescopic frame (22); The controller (24) is fixedly connected to the upper right side of the telescopic frame (22); The slide rod (25) is fixedly connected to the hollow groove inside the telescopic frame (22), and the slide rod (25) is slidably connected to the left and right ends of the motor fixing frame (21); Waterproof electric push rod (26), the waterproof electric push rod (26) is fixedly connected to the upper end of the telescopic frame (22), and the lower end telescopic rod of the waterproof electric push rod (26) is fixedly connected to the motor fixing frame (21); Waterproof telescopic cover (27), the upper end of which is fixedly connected to the telescopic frame (22), and the lower end of which is fixedly connected to the motor fixing frame (21).

3. The quick release underwater cutter assembly of claim 2, wherein: The fixing component (3) includes: A fixed support frame (31) is fixedly connected to the front end of the motor mounting frame (21); The upper end of the damper (32) is rotatably connected to the left and right ends of the fixed support frame (31); Telescopic waterproof telescopic cover (33), wherein the upper end damper (32) of the telescopic waterproof telescopic cover (33) is fixedly connected; Ball head (34), the upper end of the ball head (34) is fixedly connected to the lower end of the telescopic rod of the damper (32), and the upper end of the ball head (34) is fixedly connected to the lower end of the telescopic waterproof telescopic cover (33); Vacuum suction cup ball seat (35), the upper end of which is rotatably connected to the ball head (34); Rotate the fixed block (36), and the left and right ends of the rotating fixed block (36) are fixedly connected to the upper end of the vacuum suction cup ball seat (35); The suction pipe (37) is fixedly connected at its lower end to the vacuum suction cup ball seat (35); An underwater vacuum pump (38) is fixedly connected to the left and right ends of a fixed support frame (31).

4. The quick release underwater cutter assembly of claim 3, wherein: The blade (15) is threadedly connected to the blade holder (12) by bolts and threaded grooves (13).

5. The quick release underwater cutter assembly of claim 4, wherein: The blade (15) is slidably connected to the positioning and fixing rod (14) and the blade holder (12) through the positioning and fixing slot (16).

6. The quick release underwater cutter assembly of claim 5, wherein: The rotating fixed block (36) is rotationally connected with the fixed support frame (31) at the middle part.

7. The quick-release underwater cutting tool assembly according to claim 6, characterized in that: The underwater vacuum pump (38) is fixedly connected with the upper end of the air suction pipe (37) at the front and back ends.

Citation Information

Patent Citations

  • Underwater cutting machine for ecological river

    CN204094243U