阅读说明：本技术 一种新型船用螺旋桨防护罩 (Novel marine propeller protection casing ) 是由 张海波 裴磊 于 2021-07-31 设计创作，主要内容包括：本发明公开了一种新型船用螺旋桨防护罩,包括前防护圈和后防护圈,前防护圈与后防护圈之间设有若干固定杆,前防护圈、后防护圈在顶部均设有开口,开口内设有U型固定部,后防护圈在下部位置设有底部固定组件。本发明取消防护罩设于螺旋桨前方的栅格,并通过前、后防护圈维持防护罩的稳定性和强度。本发明可以减少防护罩对于螺旋桨吸水力的减小效应,提高螺旋桨动力,并对螺旋桨起到良好的保护效果。本发明通过U型固定部和底部固定组件对防护罩从上方和下方进行同时固定,固定效果好,对螺旋桨的保护效果好。(The invention discloses a novel marine propeller protective cover which comprises a front protective ring and a rear protective ring, wherein a plurality of fixing rods are arranged between the front protective ring and the rear protective ring, openings are formed in the tops of the front protective ring and the rear protective ring, a U-shaped fixing part is arranged in each opening, and a bottom fixing component is arranged at the lower part of the rear protective ring. The invention cancels the grid of the protective cover arranged in front of the propeller and maintains the stability and the strength of the protective cover through the front protective ring and the rear protective ring. The invention can reduce the effect of the protective cover on the reduction of the water suction capacity of the propeller, improve the power of the propeller and play a good role in protecting the propeller. According to the invention, the protective cover is fixed from the upper part and the lower part simultaneously through the U-shaped fixing part and the bottom fixing component, the fixing effect is good, and the protection effect on the propeller is good.)

1. The utility model provides a novel marine screw protection casing, a serial communication port, including preceding guard circle and back guard circle, be equipped with a plurality of dead levers between preceding guard circle and the back guard circle, preceding guard circle, back guard circle all are equipped with the opening at the top, be equipped with U type fixed part in the opening, back guard circle is equipped with the fixed subassembly in bottom position.

2. The propeller protection cover for the ship as claimed in claim 1, wherein wing plates are arranged on two sides of the U-shaped fixing portion, and hooks are arranged at the tail ends of the wing plates.

3. The propeller protection cover according to claim 2, wherein the wing plate is arranged between the front guard ring and the rear guard ring.

4. The novel marine propeller protective cover according to claim 1, wherein the bottom fixing component comprises a bottom support rod with an obtuse angle shape, clamping plates are arranged on two sides of the bottom support rod, a second fixing rod is oppositely arranged on the top of the bottom support rod, and a fixing head is arranged at the end of the second fixing rod.

5. The novel marine propeller protection cover according to claim 4, wherein the rear protection ring is provided with two auxiliary support rods for maintaining the stability of the bottom support rod, and the two auxiliary support rods are supported on the bottom support rod in a triangular shape.

6. The propeller protection cover for a ship according to claim 4, wherein the auxiliary support rod is positioned lower than the propeller.

7. The propeller protection cover for the ship as claimed in claim 1, wherein the end of the U-shaped fixing portion is provided with a second fixing head.

Technical Field

The invention relates to the field of ship manufacturing, in particular to a novel marine propeller protective cover.

Background

The propeller of the traditional fishing boat and the propeller of the civil boat often twine aquatic weeds in water or impact foreign matters, so that the propeller is easily damaged, the boat loses driving power, and therefore a protective cover needs to be added in front of the propeller for protection.

Existing shields are generally cage-shaped and house the propeller therein; however, in the prior art (for example, CN202021910187.6), the shield provided in front of the propeller is easy to split water flow when the ship is running, which results in the decrease of the water suction force of the propeller and the decrease of the propeller thrust.

Disclosure of Invention

The invention aims to overcome the problems and provides a novel marine propeller protective cover. In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a novel marine screw protection casing, includes preceding guard circle and back guard circle, be equipped with a plurality of dead levers between preceding guard circle and the back guard circle, preceding guard circle, back guard circle all are equipped with the opening at the top, be equipped with U type fixed part in the opening, back guard circle is equipped with the fixed subassembly in bottom in the lower part position.

As an improvement, wing plates are arranged on two sides of the U-shaped fixing portion, and hooks are arranged at the tail ends of the wing plates.

As an improvement, the wing plate is arranged between the front protective ring and the rear protective ring.

As an improvement, the bottom fixing component comprises a bottom supporting rod in an obtuse-angle shape, clamping plates are arranged on two sides of the bottom supporting rod, a second fixing rod which is arranged oppositely is arranged at the top of the bottom supporting rod, and a fixing head is arranged at the tail end of the second fixing rod.

As an improvement, the rear protection ring is provided with two auxiliary supporting rods for maintaining the stability of the bottom supporting rods, and the two auxiliary supporting rods are supported on the bottom supporting rods in a triangular shape.

As an improvement, the position of the auxiliary supporting rod is lower than that of the propeller.

As an improvement, the tail end of the U-shaped fixing part is provided with a second fixing head.

The invention has the advantages that:

the invention cancels the grid of the protective cover arranged in front of the propeller and maintains the stability and the strength of the protective cover through the front protective ring and the rear protective ring. The invention can reduce the effect of the protective cover on the reduction of the water suction capacity of the propeller, improve the power of the propeller and play a good role in protecting the propeller.

According to the invention, the protective cover is fixed from the upper part and the lower part simultaneously through the U-shaped fixing part and the bottom fixing component, the fixing effect is good, and the protection effect on the propeller is good.

Drawings

FIG. 1 is a schematic diagram of a novel marine propeller protection cover according to example 1;

FIG. 2 is a schematic diagram of a bottom support bar in the novel marine propeller shield of example 1;

fig. 3 is a diagram illustrating a connection mode of the novel marine propeller protective cover with the propeller and the rudder plate in embodiment 1.

Labeled as:

1-front protective ring, 2-rear protective ring, 3-fixed rod, 4-opening, 5-U-shaped fixed part, 51-wing plate, 52-hook, 53-second fixed head, 6-bottom fixed component, 61-bottom supporting rod, 62-splint, 63-second fixed rod, 64-fixed head, 65-auxiliary supporting rod, 7-rudder plate, 71-convex edge and 8-propeller.

Detailed Description

The present invention will be described in detail and specifically with reference to the following examples so as to facilitate the understanding of the present invention, but the following examples do not limit the scope of the present invention.

Example 1

The embodiment discloses a novel marine propeller protection casing, including preceding guard ring 1 and back guard ring 2, be equipped with a plurality of dead levers 3 between preceding guard ring 1 and the back guard ring 2, preceding guard ring 1, back guard ring 2 all are equipped with opening 4 at the top, are equipped with U type fixed part 5 in opening 4, and back guard ring 2 is equipped with bottom fixed subassembly 6 in the position down.

Wing plates 51 are arranged on two sides of the U-shaped fixing part 5, and hooks 52 are arranged at the tail ends of the wing plates 51. The wing plate 51 is provided between the front guard ring 1 and the rear guard ring 2. The flap 51 can fix the shield on the flange 71 of the rudder plate 7 to improve the stability of the fixation. The end of the U-shaped fixing part 5 is provided with a second fixing head 53.

The bottom fixing component 6 comprises a bottom supporting rod 61 with an obtuse angle shape, clamping plates 62 are arranged on two sides of the bottom supporting rod 61, a second fixing rod 63 which is oppositely arranged is arranged at the top of the bottom supporting rod 61, and a fixing head 64 is arranged at the tail end of the second fixing rod 63. The rear protective ring 2 is provided with two auxiliary support rods 65 for maintaining the stability of the bottom support rod 61, and the two auxiliary support rods 65 are supported on the bottom support rod 61 in a triangular shape. The auxiliary support bar 61 is positioned lower than the propeller 8 to prevent the water flow it cuts from affecting the suction of the propeller 8.

As shown in the figure, the U-shaped fixing part 5 is fixed at the upper part of the rudder plate 7, and the bottom fixing component 6 is clamped and fixed at the bottom of the rudder plate 7; the upper part and the lower part are fixed simultaneously, so that the fixing effect of the protective cover can be improved. Simultaneously, the screw 8 is in the space that preceding guard ring 1, back guard ring 2 and dead lever 3 enclose, and preceding guard ring 1, back guard ring 2 all do not are equipped with the subassembly that can cut apart rivers in screw 8 the place ahead and rear, do not influence the water-absorbing capacity of screw 8. Moreover, the rudder plate 7 is positioned at the center of the rear fixing ring 8, and the rear fixing ring 2 and the rudder plate 7 form a structure, so that the foreign objects such as ropes which possibly enter the range of the protective cover can be prevented from being involved in the propeller 8 due to a shielding effect.

The embodiments of the present invention have been described in detail above, but they are merely exemplary, and the present invention is not equivalent to the above described embodiments. Any equivalent modifications and substitutions to those skilled in the art are also within the scope of the present invention. Accordingly, it is intended that all equivalent alterations and modifications be included within the scope of the invention, without departing from the spirit and scope of the invention.