Trawl net cross rod fixing device of euphausia superba fishing boat

Abstract

The invention belongs to the field of design and manufacture of euphausia superba fishing boats, and particularly discloses a trawl cross bar fixing device of an euphausia superba fishing boat, which is characterized in that a slide rail is fixedly mounted on a deck at the tail of the boat, and a concave support seat is mounted on the slide rail as a slide block; one end of the hinge is hinged to one end of the top of the concave supporting seat, the other end of the hinge is connected with one end of the universal rotating C-shaped cover, the other end of the universal rotating C-shaped cover is a locking piece, a through hole is formed in the locking piece, a plug pin hole is formed in the top of the concave supporting seat, and a plug pin connects the universal rotating C-shaped cover with the top of the concave supporting seat through the through hole and the plug pin hole. According to the invention, the cross rod can be quickly fixed and hoisted, and the safety of operation under the high sea condition is improved. Meanwhile, the device has the advantages of being safe and reliable in structure, flexible to adjust, low in manufacturing cost, easy and convenient to implement and worthy of application and popularization.

Description

Technical Field

[0001] The invention belongs to the field of design and manufacturing of Antarctic krill fishing vessels, and particularly relates to a trawl crossbar fixing device suitable for Antarctic krill fishing vessels. Background Art

[0002] Antarctic krill fishing mostly uses truss trawling. Polar fishing vessels, krill fishing and processing vessels often operate continuously in the floating ice areas near the Arctic Circle for up to six months. Such vessels usually use trawling operations, and the krill nets up to 200 meters long are supported by crossbars. The key component of trawling and releasing the nets is the net mouth crossbar. The net gear located at the stern uses the crossbar to retract, release and shape, so the crossbar is subject to great force and weighs more than ten tons. The crossbars of traditional ships are placed on the deck without being fixed, which is unsafe in high sea conditions and has a high risk factor for personnel operation. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to propose a trawl crossbar fixing device for Antarctic krill fishing vessels, which overcomes the defects of the prior art in poor safety under sea conditions and high risk factor for personnel operation.

[0004] In order to solve the above technical problems, a trawl crossbar fixing device for an Antarctic krill fishing vessel is proposed, comprising: a slide rail fixedly installed on the stern deck, a concave support seat installed on the slide rail as a slider; one end of the hinge is hinged to one end of the top of the concave support seat, and the other end of the hinge is connected to one end of a universal rotating C-type cover, the other end of the universal rotating C-type cover is a locking plate, a through hole is provided on the locking plate, and a pin hole is provided on the top of the concave support seat, and the pin connects the universal rotating C-type cover to the top of the concave support seat through the through hole and the pin hole.

[0005] Optimally, a rubber sleeve is installed on the concave supporting surface of the concave supporting seat.

[0006] Optimized, shock-absorbing gaskets are provided between the bottom of the concave support and the slide rail.

[0007] Furthermore, the slide rail is welded and fixed on the stern deck.

[0008] This invention not only secures the crossbar, but also allows for quick lifting preparations by quickly opening the universally rotatable C-shaped cover when the net is released, ensuring rapid lifting of the crossbar. After use, the crossbar can be quickly returned to its original position, ensuring its reliability in high sea conditions and the safety of nearby workers. The fixing device of this invention makes installation and removal of the crossbar quick and easy, significantly reducing preparation time and maintenance costs. The angle and position of the crossbar can be flexibly adjusted according to different fishing conditions, ensuring optimal fishing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0010] Figure 1 It is a side view of the crossbar fixing device of the present invention.

[0011] Figure 2 This is a top view of the crossbar fixing device of the present invention.

[0012] Figure 3 This is a front view of the crossbar fixing device of the present invention.

[0013] In the figure: 1-concave cast steel support seat, 2-universally rotatable C-shaped cover, 3-buffer rubber sleeve, 4-latch, 5-loose-leaf, 6-slide rail. DETAILED DESCRIPTION

[0014] Combine Figures 1 to 3 As shown, the trawl crossbar fixing device for an Antarctic krill fishing vessel includes a slide rail 6 welded and fixed to the stern deck, and a concave support base 1 mounted as a slider on the slide rail 6. Both the slide rail 6 and the concave support base 1 are made of corrosion-resistant stainless steel or other highly weather-resistant metal materials. The concave support base 1 has a large bottom area to reduce the effects of stress concentration and prevent damage to the hull. A shock-absorbing gasket is installed between the bottom of the concave support base 1 and the slide rail 1 to absorb impact forces. A buffer rubber sleeve 3 is installed on the concave support surface of the concave support base 1 to ensure that the crossbar is fixed and does not wear and damage the paint. One end of the hinge 5 is hinged to one end of the top of the concave support base 1. The other end of the hinge 5 is connected to one end of the universal rotating C-shaped cover 2. The other end of the universal rotating C-shaped cover 2 is a locking plate 7 with a through hole. The top of the concave support base is provided with a latch hole. The latch 4 connects the universal rotating C-shaped cover 2 to the top of the concave support base 1 through the through hole and the latch hole.

[0015] Crossbar 8 is equipped with dedicated quick connectors at both ends, allowing it to be quickly connected to the fixture. A watertight ring is installed inside the connector to prevent seawater corrosion and ensure the tightness of the connection. Crossbar 8 has an elliptical cross-section to maximize strength and reduce weight. The crossbar is telescopic and, depending on actual fishing needs, can be extended to a length ranging from 23-28m. Its diameter is determined to be 200mm based on the actual fishing capacity. The crossbar is made of high-strength, lightweight titanium-aluminum alloy, which has excellent structural strength and low-temperature / corrosion resistance, and can operate stably and reliably in low-temperature conditions.

[0016] The hinged joint of the universal C-shaped cover achieves angle adjustment, allowing the crossbar to rotate freely within a certain range to accommodate different operating requirements. Once adjusted, the built-in locking pin secures the screws. Furthermore, the concave support base 1 slides on the slide rail 6, providing fine position adjustment for the crossbar, ensuring the network port always maintains the ideal opening position.

[0017] Therefore, the crossbar fixing device of the present invention makes installation and removal of the crossbar quick and easy, significantly reducing preparation time and maintenance costs. The adjustable components employed allow for flexible adjustment of the crossbar's angle and position to varying fishing conditions, ensuring optimal fishing efficiency. This crossbar fixing device offers a safe and reliable structure, low manufacturing cost, and is simple and easy to implement.

[0018] It will be appreciated that the present invention is not limited to the precise construction that has been described above and shown in the accompanying drawings, and that various modifications and variations can be made without departing from its scope, which is governed solely by the appended claims.

[0019] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A trawl crossbar fixing device for an Antarctic krill fishing vessel, characterized in that: include: The slide rail is fixedly installed on the stern deck, and the concave support seat is installed on the slide rail as a slider; one end of the hinge is hinged to one end of the top of the concave support seat, and the other end of the hinge is connected to one end of the universal rotating C-type cover, and the other end of the universal rotating C-type cover is a locking plate, which is provided with a through hole, and the top of the concave support seat is provided with a pin hole, and the pin connects the universal rotating C-type cover to the top of the concave support seat through the through hole and the pin hole.

2. The trawl crossbar fixing device for Antarctic krill fishing vessels according to claim 1, characterized in that: A rubber sleeve is installed on the concave supporting surface of the concave supporting seat.

3. The trawl crossbar fixing device for Antarctic krill fishing vessels according to claim 2, characterized in that: A shock-absorbing gasket is provided between the bottom of the concave support seat and the slide rail.

4. The trawl crossbar fixing device for Antarctic krill fishing vessels according to claim 3, characterized in that: The slide rail is welded and fixed on the stern deck.

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