CN1345677A - Anchor - Google Patents

Abstract

The anchor has a shaft (1) and a pivoting head (2) with flukes. Two spaced pivot points are provided, which are eccentrically arranged. The centre of mass (7) of the anchor head lies between and over both pivot points, when the anchor head is vertically on the anchor shaft.

Description

Anchor

Technical field

The present invention relates to by anchor pole and be arranged on the anchor that the band fluke anchor head on the fulcrum constitutes movably.

Background technology

This anchor is known.Except good earth-grasping force, this anchor should not allow anchor head pawl point run into barnacle when anchor is pulled overboard shell, and is impaired to avoid ship.When on the chain before anchor dangles shell overboard anchor head being parallel to dangle anchor pole, realized this purpose.

Realize above-mentioned requirements by following measure as everyone knows, promptly the anchor head center of gravity is below the anchor head fulcrum.This mainly realizes by fulcrum is moved along the anchor bill direction.But in this solution, the changes geometry of grabbing the anchor fluke face in the anchorage is a defective.The anchor fluke face is reduced by following measure, and promptly the lower end head is large-area.In addition, by this different anchor head center-of-gravity position, in the anchor that will pierce the seabed, alleviated the support loading of anchor bill.For eliminating above-mentioned defective as much as possible, can only realize when absolute demand that the center of gravity in the anchor head moves.But the anchor head moment in the right direction that is obtained is very little, and the iron rust in the fulcrum district or impurity may it was not long just hinder adjustment anchor head direction.

Summary of the invention

Therefore, task of the present invention is to eliminate above-mentioned defective and such anchor is provided, be it under extreme usage condition also for anchor head has produced failure-free and sufficiently high moment, and the sharp face of anchor dwindle or the unfavorable center-of-gravity position of anchor when lying low do not weaken the earth-grasping force that anchor is kept a firm hand on the seabed.

According to the present invention, so finished above-mentioned task, promptly be provided with the fulcrum of two spaces, it is eccentric (centrifugal) that fulcrum is configured to, the anchor head center of gravity when anchor pole is in vertical position between them and above these two fulcrums.

When anchor was pulled overboard shell, anchor head was flapped toward the fulcrum of each interval automatically and thereby is parallel to ship.Thereby, although the anchor head center of gravity above the anchor head fulcrum, anchor head obtains stable support.

" swing in " when anchor head is in vertical position at anchor pole in the parallel position that anchor head is parallel to anchor pole is to cause by the position of this center of gravity in two fulcrums spaced apart from each other.

The anchor that lies low on the seabed will bore ground, and this causes that by the anchor chain pull unit it has also constituted the fulcrum in the face of the seabed on reverses direction.Because the anchor head center of gravity is above fulcrum, its load acts on the anchor bill as the people with being willing to." flip angle " of anchor head limited by corresponding anchor pole block face.

By the point supporting situation that changes and and then the clearance envelope in anchor head fulcrum zone that causes thus, in this zone get rusty and/or impurity can not hinder anchor head and rotates around anchor pole.

Description of drawings

In conjunction with illustrated embodiment the present invention is described.

Fig. 1 represents anchor of the present invention with overview.

Fig. 2 represents anchor of the present invention with lateral plan.

Fig. 3 represents the anchor to the level of seabed generation effect.

Fig. 4 is the enlarged drawing of the anchor head supporting of anchor head when vertical.

Fig. 5 is illustrated in the enlarged drawing of anchor head upset anchor head supporting constantly.

Preferred embodiment is described

In Fig. 1-Fig. 5, represent same parts with same tag.In Fig. 1, represent anchor pole with 1, represent anchor head with 2, with the 3 fulcrum districts that represent anchor head 2.In Fig. 2, drawn at the upright position (shown in the dotted line) preceding and the vertical anchor anchor head upset and the corresponding position of the fulcrum 7 that change over to automatically perpendicular to anchor pole.Among Fig. 4 afterwards, 5, with the drawn details of function of the ratio of amplifying.In Fig. 3, the anchor of level will pierce the seabed as shown in figure, and wherein center of gravity 7 has produced a suitable power on anchor head anchor fluke direction.

In Fig. 4, the fulcrum situation that anchor is in vertical position and anchor head is parallel of having drawn.Here, with 8 fulcrums of representing two spaces, wherein center of gravity 7 is between them and be positioned at fulcrum and hold above the neck 6, so that stablize the parallel position of anchor head 2 relative anchor poles 1.

In Fig. 5, the enlarged drawing of the vertical anchor of anchor head 2 upsets of having drawn.Having only one of them fulcrum 8 to be positioned at fulcrum here, holds on the neck 6.The center-of-gravity position 7 of anchor head 2 acts on the fulcrum 8 and has produced reset force and guided switching process subsequently, and it is turned on the position that is parallel to anchor pole 1 anchor head 2.

Claims (1)

1. anchor, it constitutes by an anchor pole with by the band fluke anchor head that is provided with movably on fulcrum, it is characterized in that, be provided with the fulcrum (8) of two spaces, fulcrum (8) is that eccentric (centrifugal) is provided with, anchor head (2) center of gravity (7) anchor pole (1) when being in vertical position between them and in the top of these two fulcrums (8).

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