JPH0631942Y2 - Underwater deposit cleaning device - Google Patents

Description

[Detailed Description of the Invention] Industrial field of application The present invention relates to an underwater deposit cleaning device for cleaning / removing marine organisms such as barnacles, mussels and the like adhering to marine structures, outer plates of ships, walls of waterways, etc. In particular, it is suitable for cleaning the wall surface of the underwater seal part.

2. Description of the Related Art In a conventional underwater deposit cleaning device of this type, a rotary wire brush or a wire scraper has been used.

However, according to the conventional cleaning device as described above, it is difficult to adjust the pressing force of the cleaning device against the cleaning surface, and the cleaning surface is damaged when trying to completely remove the adhered matter, On the contrary, if the cleaning surface is not damaged, the adhered matter cannot be completely removed.

An object of the present invention is to improve a conventional cleaning device and solve such a problem.

Means for Solving the Problems In order to achieve the above-mentioned object, an underwater deposit cleaning device of the present invention has a rotating brush equipped with a rod brush for rough cleaning, and a bristle brush for finishing cleaning in front of the rod brush. Is slidably attached in the front-rear direction along the axis, and an elastic body for urging the bristle brush forward is provided between the rod brush and the bristle brush, and the rod brush and the bristle brush are planted forward. In addition, the rod brush is arranged on the outer periphery of the bristle brush, and the tip of the bristle brush is projected forward by a predetermined distance from the rod brush tip at the retreat limit of the bristle brush.

Function In the above-mentioned configuration of the present invention, when cleaning the adhered matter on the cleaning surface, the bristle brush is pressed against the cleaning surface against the elastic body while rotating the rotating shaft, and the tip of the rod brush is pushed at the retreat limit of the bristle brush. The rotating shaft is moved along the cleaning surface while maintaining a constant and proper distance (clearance) between the cleaning surface and the cleaning surface. Since the bristle brush is on the outer circumference of the stick brush, first, the metal rod of the stick brush is roughly cleaned by impact force to remove most of the deposits on the cleaning surface, and then the bristles of the bristle brush remain on the cleaning surface. Perform final cleaning of adhered substances. At that time, since the bristle brush is pressed against the cleaning surface by the restoring force of the elastic body, the irregularities of the deposits left on the cleaning surface are absorbed by the expansion and contraction of the elastic body and the elastic force of the bristle brush.
Therefore, the bristle brush is not only pressed against the cleaning surface with an appropriate pressing force, but also the initial proper clearance is always maintained between the metal rod tip of the rod brush and the cleaning surface, and the metal rod tip is not Will not damage.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

The underwater deposit cleaning device of the present embodiment, as shown in the drawing,
The rod brush 2, the bristle brush 3, and the elastic body 4 are assembled to the front part of the rotary shaft 1, and the other end of the rotary shaft 1 is connected to the output shaft 7 of the motor 6 fixed to the operation arm 5. .
The rotating shaft 1 includes a support portion 8 having a square cross-section at the front end.
And a threaded portion 9 is formed at the front end of the support portion 8 and a mounting hole 10 is provided at the rear end portion. The output shaft 7 is inserted into the mounting hole 10 and fixed by bolts 11. Reference numeral 12 is a key for transmitting the torque of the motor 6 from the output shaft 7 to the rotary shaft 1.

The rod brush 2 is formed by arranging a plurality of metal rods 14 on the peripheral portion of a circular plate-shaped substrate 13 so as to face forward (downward in the figure).
The boss portion 15 of the substrate 13 is fixed to the support portion 8 of the rotating shaft 1. The metal rod 14 is made of a steel round rod or the like. The bristle brush 3 is a circular dish-shaped substrate 16 having a diameter smaller than that of the substrate 13 of the rod brush 2, and a large number of bristles 17 are planted in the peripheral portion of the substrate 16.
The 16 bosses 18 are attached to the front of the rod brush 2 of the support 8 of the rotary shaft 1 so as to be slidable in the axial direction and detachable by a nut 19 screwed to the screw 9. Bristle 17 is a cleaning surface
Select the appropriate property (wire brush, etc.) according to the condition of the 20 deposits. The elastic body 4 is a compression spring that is interposed between the two substrates 13 and 16 and urges the substrate 16 in a direction away from the substrate 13. The tip of the bristles 17 is made to project forward by a predetermined distance A from the tip of the metal rod 17. The lower end surface of the boss portion 15 of the rod brush 2 is formed as a stopper receiving surface 15a, and the stopper surface 18a of the upper end surface of the boss portion 18 of the bristle brush 3 which is retracted against the elastic body 4 at the time of cleaning contacts the bristles. Restrict the retreat of the brush 3. In the retreat limit of the bristle brush 3, the tip of the bristles 17 of the bristle brush 3 is set so as to protrude forward by a certain distance (clearance) B from the tip of the metal rod 14 of the rod brush 2, and the metal rod 14 of the rod brush 2 is set. Is configured so as not to directly contact the cleaning surface 20.

Next, the operation of the above configuration will be described.

In order to clean the deposits on the cleaning surface 20, the rotating brush 1 is rotated by the motor 6 and the bristle brush 3 by the operating arm 5.
Is pressed against the cleaning surface 20, and the operating arm 5 is cleaned while maintaining a constant and proper distance (clearance) B between the cleaning surface 20 and the tip of the metal rod 14 of the rod brush 2 at the retreat limit of the bristle brush 3. Move along surface 20. Since the substrate 16 has a smaller diameter than the substrate 13, the metal rod 14 of the rod brush 2 first removes most of the deposit on the cleaning surface 20 by the impact force. At that time, although the adhered matter remains on the cleaning surface 20 by the amount of the clearance B, the final cleaning of the adhered matter on which the bristles 17 of the bristle brush 3 remain is performed. At that time, since the bristle brush 3 is pressed against the cleaning surface 20 by the restoring force of the elastic body 4, the unevenness of the adhered matter remaining on the cleaning surface 20 causes the elastic body 4 to expand and contract and bristles.
17 Absorbed by its own elastic force. Therefore, the bristle brush 3 is not always pressed against the cleaning surface 20 with an appropriate pressing force, but the initial proper clearance B is always maintained between the tip of the metal rod 14 of the rod brush 2 and the cleaning surface 20. The tip of the metal rod 14 does not damage the cleaning surface 20.

Depending on the condition of the adhered matter on the cleaning surface, the pressing force of the bristle brush 3 against the cleaning surface 20 is adjusted by replacing the elastic body 4 with one having an appropriate spring constant, and also the bristle brush 3 itself. By replacing the bristles 17 with bristles 17 having appropriate properties (material, stiffness, etc.), effective cleaning and protection of the cleaning surface 20 can be achieved.

Effect of the Invention As described above, according to the present invention, the rod brush and the bristle brush are attached to the rotating shaft, and the elastic body is provided between these brushes. Also, since the bristle brush is configured to project forward by a certain distance, the bristle brush is not only always pressed against the cleaning surface with an appropriate pressing force, but also the tip of the metal rod can be prevented from damaging the cleaning surface.

[Brief description of drawings]

FIG. 1 is a sectional view of an underwater deposit cleaning device according to an embodiment of the present invention. 1 ... Rotary axis, 2 ... Stand brush, 3 ... Bristle brush, 4
...... Elastic body, 13 ...... Substrate (rod brush), 14 ...... Metal rod,
16: substrate (bristles brush), 17: bristles, B: a certain distance (clearance).

Claims (1)

[Scope of utility model registration request] 1. A rod brush for rough cleaning is attached to a rotary shaft, and a bristle brush for finish cleaning is attached to the front of the rod brush so as to be slidable in the front-rear direction along the axis. An elastic body that biases the bristle brush forward is provided between the brush and the rod brush and the bristle brush are planted toward the front, and the rod brush is arranged on the outer periphery of the bristle brush, and the bristle brush retracts. The underwater deposit cleaning device is characterized in that the tip of the bristle brush is projected forward by a certain distance from the tip of the stick brush.