JPH04115999U - Debris removal device for water intake in waterjet propulsion boats - Google Patents

Abstract

(57) [Summary] [Purpose] To remove foreign matter attached to the water intake without stopping the water jet propulsion boat. [Structure] A comb-shaped strainer is rotatably attached to the water intake port on the bottom of the water jet propulsion boat via a pivot, and a comb-shaped dirt scraping member that slides and engages with the comb-shaped strainer. A dust removal mechanism consisting of a push rod and a push rod is provided, and a dust scraping member is slid by remote control from inside the ship to remove foreign matter adhering to the comb-shaped strainer.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a device for removing dirt from the water intake of a water jet propulsion boat. In detail, the waterjet propulsion boat can be remotely controlled while it is in the propulsion state. The comb-shaped strainer attached to the bottom of the water intake port actively removes dirt. The present invention relates to an improvement in a dust removal means that generates a swinging motion.

0002

[Conventional technology]

Figure 3 shows a waterjet propulsion system used as a propulsion system for small vessels. , and as shown in Figure 4, the water intake port (2) opened at the bottom (1A) of the hull (1). water is sucked into the engine (5) via the water suction pipe (3) and the cylinder (4). ), this water is sent to a jet pump (6) with a built-in impeller driven by is accelerated by the jet pump (6) and passed through the jet pipe (7) and the steering pipe (8). The water is ejected to the rear of the hull (1), and the reaction force generates propulsive force.

0003 By the way, in the above-mentioned water jet propulsion system, the If foreign matter such as seaweed, seaweed, or solid waste is sucked in through the water intake port (2), this may occur. When these foreign objects hit the impeller of the jet pump (6), the propulsive force is increased. Not only this, but also accidents such as entanglement and damage to the impeller are induced. this In order to prevent such problems, as shown in Figure 4, the lower surface of the opening edge of the water inlet (2) , install a lattice strainer (9) for collecting garbage, and use this strainer (9) to This prevents seaweed and large floating objects from being sucked in through the water intake port (2).

0004

[Problem that the idea aims to solve]

However, if seaweed or floating objects get caught in the lattice strainer (9), the water intake (2) is blocked, the water suction capacity of the jet pump (6) decreases, and the worst In this case, the ship becomes unnavigable. To avoid this situation, use the grid type struts mentioned above. It is necessary to remove seaweed and floating objects caught in the lena (9), but the grid-like strip Since the trainer (9) is fixed to the lower surface of the opening edge of the water intake port (2), the water If the jet propulsion boat is stopped and the worker dives into the water, or if the water jet is Foreign objects caught in the lattice strainer (9) when the propulsion boat is pulled ashore. had to be removed, making maintenance and management troublesome.

[0005]

[Means to solve the problem]

As a means of solving the above problems, this invention has developed a system that allows water to be sucked in from the water intake port opened at the bottom of the ship. It is sent to a jet pump via a water suction pipe, and is sent out from this jet pump. Water is ejected to the rear of the hull via the jet pipe and the steering pipe, and the reaction force is used to propel the water. In a waterjet propulsion boat that obtains propulsion power, a rotatable support is provided at one end of the water intake port. Fix each proximal end to the held pivot and the free end upward. Extend to the pipe wall at the other end of the water inlet, and align them in parallel with each other at a predetermined distance. A comb-shaped strainer consisting of a plurality of band-shaped plate bodies, and a comb-shaped strainer that is slidably inserted into the band-shaped plate bodies. The lower end of the comb-shaped dust scraping member is placed relative to the support shaft of this dust scraping member. A stopper that is rotatably fitted and provided on the hull above the dirt scraping member. A push-in rod that is movably supported by a tool and a locking portion of the dirt scraping member. A remote-controlled garbage disposal system consisting of a seat provided on the pipe wall of the water intake port as a position. Water intake in a waterjet propulsion boat, characterized by being equipped with a removal mechanism The present invention provides a dust removal device.

[0006]

[Effect]

Push the push rod inside the waterjet propulsion boat. This allows the push rod to A dirt scraping member, which is slidably supported via a support shaft at the lower end of the water intake port, Press down on the comb-shaped strainer rotatably supported at the lower end of the comb-shaped strainer. While moving the trainer to the open position, slide it along the band-like plate that is its component. Remove foreign objects such as seaweed and floating objects caught in the comb-shaped strainer from the strip plate. Pull apart. Once the foreign matter has been removed, pull the push rod. This will remove dirt. The holding member returns to its original position and is positioned and fixed on the bottom surface. In line with this, a comb shape The strainer rotates from the opening position to the original position and is positioned at the inlet of the water intake port. Fixed.

[0007]

【Example】

Hereinafter, a specific example of the present invention will be described based on FIGS. 1 and 2. In addition, the following In the description, components that are the same as those in FIGS. 3 and 4 showing the prior art are given the same reference numbers. The description will be omitted for duplicate items.

[0008] The dust removal device (10) serves as a movable dust trapping member at the lower end of the water intake port (2). A pivot (12) is rotatably supported via a bearing (11) on the The base end (13A) of each is welded, and the free end (13B) is attached to the above bearing (11). Extend to the pipe wall at the other end of the water intake port (2) facing the installation area, and leave a specified distance between them. A comb-shaped strainer (13) consisting of multiple strip plates (13) arranged in parallel 14).

[0009] Corresponding to this comb-shaped strainer (14), the dust removal device (10) A comb-shaped dust scraping member (15) slidably inserted into the band-shaped plate (13) and this garbage scraping member (15) Its lower end is fitted into the support shaft (16) of the dust removal member (15) so that it can rotate relative to the dust removal member (15). The beam (17A) extending from the hull (1) above the scraping member (15) and the tube It is supported so that it can be pushed and pulled by a stopper (17) consisting of a shaped guide (17B). A movable dust removal mechanism consisting of a push-in rod (18) with a handle (18A) The body (20) is provided with a water-absorbing body (20) and serves as a locking part for the dust scraping member (15). A seat surface (19) for positioning and fixing is provided on the pipe wall of the mouth (2) to remotely control the garbage. forming a removal mechanism.

0010 The operating sequence of the device (10) of the present invention will be explained below. Seaweed in comb strainer (14) If foreign objects such as seaweed, plastic bags, etc. are attached, remove the handle (18A). Push the grip push rod (18) all the way. This push-in action causes the push-in rod to Dust scraping member (15) attached to the lower end of the door (18) via the support shaft (16) lowers the comb-shaped strainer (14) rotatably supported at the lower end of the water inlet (2). While rotating this comb-shaped strainer toward the open position, Slide it along the strip plate (13) that is a component and pull it into the comb-shaped strainer (14). Pull the stuck foreign object away from the strip plate (13). Once the foreign matter has been removed, try again. Grasp the handle (18A) and pull the push rod (18). This will remove the dust The member (15) slides along the band-shaped plate (13) and moves to the original position near the axis (12). It returns to its original position and is positioned and fixed on the seat surface (19). In line with this, a comb-shaped stray (14) rotates from the opening position to the original position and is located at the inlet of the water intake (2). It is decided and fixed.

[0011] In addition, in the above embodiment, the push rod (18) is manually operated. By connecting various actuators to the push rod (18), it can be operated automatically. is also possible.

0012

[Effect of the idea]

Foreign matter attached to the comb strainer without stopping the waterjet propulsion boat can be reliably removed by remote control from inside the boat. Because of this, Not only does it make maneuvering and maintenance management of the Tajet propulsion boat easier, but it It also has a remarkable effect on accident prevention.

[Brief explanation of drawings]

FIG. 1 is a partial vertical sectional view of the device of the present invention.

FIG. 2 is a front view thereof.

FIG. 3 is a side view of a conventional device.

FIG. 4 is a plan view showing a conventional example of a lattice strainer.

[Explanation of symbols]

10 Garbage removal device 11 Bearing 12 Axis 13 Band-shaped plate body 14 Comb-shaped strainer 15 Comb-shaped dirt scraping member 16 Support shaft 17 Fasteners 18 Push rod 19 Seat surface 20 Movable garbage removal structure

Claims (1)

[Scope of utility model registration request] [Claim 1] Water sucked in from a water inlet opened at the bottom of the ship is sent to a jet pump via a water suction pipe, and the water sent out from the jet pump is ejected to the rear of the ship via a jet pipe and a steering pipe. In a waterjet propulsion boat that obtains propulsive force from the reaction force, the water jet propulsion boat has a pivot shaft rotatably supported at one end of the water intake port, each base end is fixed to the pivot shaft, and the free end is fixed to the pivot shaft. A comb-shaped strainer consisting of a plurality of strip-shaped plates extending to the pipe wall at the other end of the water inlet and arranged in parallel with each other at a predetermined interval, and a comb-shaped strainer that is slidably inserted into the strip-shaped plates. A comb-shaped dust scraping member, the lower end of which is fitted into the support shaft of the dust scraping member so as to be relatively rotatable, and is supported so as to be movable forward and backward by a stopper provided on the hull above the dust scraping member. A waterjet propulsion boat, characterized in that it is equipped with a remote-controlled dust removal mechanism consisting of a push-in rod and a seat provided on the pipe wall of the water intake port as a locking part for the dust scraping member. A device for removing dust from the water intake.