CN208863411U - A kind of combined type horizontal expander - Google Patents

Abstract

The utility model provides a kind of combined type horizontal expander, including rigid frame and the flexible extension component being mounted on rigid frame.Wherein, rigid frame is in quadrangle；Flexible extension component includes multiple canvas units being installed in parallel on rigid frame, canvas unit class dustpan shape, including baseplane, top plane and the N-Side surf for connecting baseplane with top plane.Baseplane and top plane are triangular in shape, including be parallel to water flow to first while, perpendicular to water flow to second while and the third curve bevel edge that is connect with N-Side surf.Canvas unit by baseplane and push up the second of plane while and N-Side surf with second while the first side that connect be mounted on rigid frame.

Description

A kind of combined type horizontal expander

Technical field

The utility model belongs to floating trawl accessory technical field, and in particular to a kind of combined type horizontal expander.

Background technique

Horizontal expansion device is the important accessory of single boat trawl, and shape is in close relations with hydrodynamic performance.It answers extensively at present Trawlnet horizontal expansion device has high aspect ratio curved netting plate, rectangular otter board etc., but such web plate largely uses steel material Material is made, and weight is big in water, is not suitable for floating trawl superficial layer operation.

In order to solve the above-mentioned technical problem, in recent years studies have reported that hollow high aspect ratio curved netting plate, compared to before High aspect ratio curved netting plate, rectangular otter board, the design is larger to alleviate weight in web plate water, but practice have shown that there is still a need for pass through Increase outer buoyancy and realizes the operation of superficial layer.Although flexible web plate has the advantages that light-weight, suitable superficial layer trawling, Since structure is difficult to control, hydrodynamic performance is ineffective, not very practical, not yet applies in production at present.

Utility model content

The utility model is to carry out in order to solve the above problem, for all kinds of combined type horizontal expanders in the prior art Existing defect provides a kind of combined type horizontal expander of brand-new design, to reduce the towing of floating trawl superficial layer operation Waterlayer control difficulty promotes floating trawl horizontal expansion.To achieve the goals above, the utility model provides following technical side Case:

Combined type horizontal expander provided by the utility model has following technical characteristic: including rigid frame and installation Flexible extension component on rigid frame.Wherein, rigid frame is in quadrangle；Flexible extension component includes multiple is installed in parallel Canvas unit on rigid frame, canvas unit class dustpan shape, including baseplane, top plane and by baseplane and top plane The N-Side surf of connection.Baseplane and top plane it is triangular in shape, including be parallel to water flow to the first side, perpendicular to water flow to Second side and the third curve bevel edge being connect with N-Side surf.The second side and side that canvas unit passes through baseplane and top plane The first side that curved surface is connect with the second side is mounted on rigid frame.

In the utility model, canvas unit approximation is in the dustpan shape placed vertically, and baseplane and top plane are equivalent to dustpan Side, N-Side surf is equivalent to the bottom surface of dustpan.It is mounted on rigid frame with the shape, and rigid frame is relied on to keep canvas The vertical stiffness of unit.

Further, in combined type horizontal expander provided by the utility model, rigid frame by two longitudinal axis and Every the more horizontal axis composition being mounted between two longitudinal axis, bottom end horizontal axis is solid rod iron, other are horizontally and vertically stainless Steel steel pipe.Under conditions of ensuring the necessary intensity of rigid frame and stability, mitigate the weight of horizontal expansion device.

Further, in combined type horizontal expander provided by the utility model, the upper and lower ends of two longitudinal axis are respectively arranged There is handle, respectively as guiding principle handle and manrope handle is draged, realizes and drag guiding principle, horizontal expansion device, the active force conduction between manrope.

Further, in combined type horizontal expander provided by the utility model, multiple canvas units are set along longitudinal axis parallel connection It sets.

Further, in combined type horizontal expander provided by the utility model, baseplane and top plane rectangular three It is angular, first at second between angle be 90 °, the curvature of third curve bevel edge is by the second side of N-Side surf and It determines on one side.The second side is connect with the first side and third curve bevel edge, is installed on rigid frame by canvas unit When, which does not connect with rigid frame.

Further, in combined type horizontal expander provided by the utility model, first while length less than second while, side Length ratio between the second side of curved surface first side and baseplane is 0.5, i.e., the aspect ratio of horizontal expansion device is 0.5.The length Degree ratio is determined by experiment, and by experimental verification, under the conditions of the length ratio, the hydrodynamic performance of horizontal expansion device is optimal.

Further, in combined type horizontal expander provided by the utility model, baseplane, top plane and N-Side surf it Between be fixed together with suture way, not only fixed form was simple, but be advantageously implemented canvas cell side face curvature control, improve water Flat extension fixture hydrodynamic performance.

The action and effect of utility model

Combined type horizontal expander provided by the utility model, has the following technical effect that

Firstly, since flexible extension component includes multiple canvas units being installed in parallel on rigid frame, canvas unit Class dustpan shape is winnowed with a dustpan including baseplane, top plane and the N-Side surf for connecting baseplane with top plane, the class that this kind is independently arranged Dustpan shape canvas unit can either reduce the change of extension fixture shape caused by water impact, and can increase horizontal expansion device Buoyancy realizes the operation of superficial layer, and by calculating, under the conditions of same projection area, the single extension fixture total weight is about all steel The 15% of material greatly reduces the weight of extension fixture.

Secondly as baseplane and top plane it is triangular in shape, including be parallel to water flow to the first side, perpendicular to water flow To the second side and the third curve bevel edge that is connect with N-Side surf, both realized that canvas cell side face curvature controlled, and improved expansion Device hydrodynamic performance is opened, and realizes accurately controlling for the Specifeca tion speeifications such as aspect ratio, curvature of curved surface, is hydrodynamic performance Optimization lays the foundation.

Third, canvas unit by baseplane and top plane second while and N-Side surf with second while the first side for connecting While being mounted on rigid frame, be conducive to keep horizontal expansion device spanwise length.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the combined type horizontal expander in the utility model embodiment；

Fig. 2 is the structural schematic diagram of the rigid frame in the utility model embodiment；

Fig. 3 is the structural schematic diagram of the canvas unit in the utility model embodiment.

Specific embodiment

The utility model is described in detail below with reference to embodiment and attached drawing.But the following example should not be regarded as to this The limitation of utility model range.

In the description of the present invention, it should be noted that the orientation of the instructions such as term " on ", "lower", "left", "right" Or positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model and simplification is retouched It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, Therefore it should not be understood as limiting the present invention.

Fig. 1 is the structural schematic diagram of the combined type horizontal expander in the utility model embodiment.

As shown in Figure 1, combined type horizontal expander 100 includes rigid frame 1 and the flexibility being mounted on rigid frame 1 Extension element 2.

Fig. 2 is the structural schematic diagram of the rigid frame in the utility model embodiment.

As depicted in figs. 1 and 2, rigid frame 1 be in quadrangle, the You Lianggen longitudinal axis 11 and interval be mounted on two longitudinal axis it Between more horizontal axis 12 composition.The upper and lower ends of two longitudinal axis 11 are each provided with handle 111, respectively as draging guiding principle handle and manrope Handle drags guiding principle and manrope for connecting, and realizes and drags guiding principle, horizontal expansion device, the active force conduction between manrope.

Rigid frame uses steel material, for keeping horizontal expansion device vertical height, the i.e. wing of horizontal expansion device Exhibition.In order to keep the necessary intensity of rigid frame and stability, while mitigating the weight of horizontal expansion device, this implementation as far as possible In example, bottom end horizontal axis 121 selects solid rod iron, other horizontally and vertically select stainless-steel pipe.The specification of steel pipe and rod iron Parameter can be determined according to specific strength demand.

As shown in Figure 1, flexible extension component 2 is installed in parallel the canvas unit on rigid frame along the longitudinal axis 11 including multiple 21.As shown in figures 1 and 3, canvas unit cuts and is stitched into class dustpan shape, including baseplane 211, top plane by one piece of canvas 212 and N-Side surf 213.On specific set-up mode, canvas unit approximation is in the dustpan shape placed vertically, baseplane 211 and top Plane 212 is equivalent to the side of dustpan, and N-Side surf 213 is equivalent to the bottom surface of dustpan, and canvas unit is mounted on rigidity with the shape On frame 1, rigid frame 1 is relied on to keep the vertical stiffness of canvas unit,

Baseplane 211 and the top rectangular triangle of plane 212, including be parallel to water flow to the first side 211a, vertical In water flow to the second side 211b and third curve bevel edge 211c.N-Side surf 213 respectively with baseplane 211 and top plane 212 third curve bevel edge 211c is fixedly connected, with there are the first sides of connection relationship with baseplane or top plane 213a and second side 213b.

First angle in 211a and second between 211b is 90 °, first while length less than second while.N-Side surf Length ratio between a side 213a and the second side of baseplane 211b is 0.5, i.e., the aspect ratio of horizontal expansion device is 0.5.It should Length ratio is determined by experiment, and by experimental verification, under the conditions of the length ratio, the hydrodynamic performance of horizontal expansion device is optimal. The curvature of third curve bevel edge 211c is determined by the second side 213b and the first side 211a of N-Side surf.

It is fixed together between baseplane 211, top plane 212 and N-Side surf 213 with suture way, both fixed form letter It is single, and it is advantageously implemented the control of canvas cell side face curvature, improve horizontal expansion device hydrodynamic performance.Canvas list after suture Member is mounted on rigid frame by the first side 213a of the second side 211b and N-Side surf of baseplane and top plane, adjacent The baseplane of two canvas units and top plane are fixed together in such a way that rilateral seam is closed.

Basic principles, main features, and advantages of the present invention has been shown and described above.Current row The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments Only illustrate the principles of the present invention, the utility model can also on the premise of not departing from the spirit and scope of the utility model There are various changes and modifications, these various changes and improvements fall within the scope of the claimed invention.The utility model is wanted Protection scope is asked to be defined by appended claims and its equivalent.

Claims (7)

1. a kind of combined type horizontal expander comprising:

Rigid frame and the flexible extension component being mounted on the rigid frame,

Wherein, the rigid frame is in quadrangle,

The flexible extension component includes multiple canvas units being installed in parallel on the rigid frame, the canvas unit class Dustpan shape, including baseplane, top plane and by the baseplane and the N-Side surf that connects of top plane,

The baseplane and the top plane are triangular in shape, including be parallel to water flow to the first side, perpendicular to water flow to Second side and the third curve bevel edge being connect with the N-Side surf,

The canvas unit by the baseplane and the top plane second while and the N-Side surf with described second while The first side of connection is mounted on the rigid frame.

2. combined type horizontal expander according to claim 1, it is characterised in that:

Wherein, the rigid frame is made of the more horizontal axis that two longitudinal axis and interval are mounted between two longitudinal axis,

Bottom end horizontal axis is solid rod iron, other horizontal axis and the longitudinal axis are stainless-steel pipe.

3. combined type horizontal expander according to claim 2, it is characterised in that:

Wherein, the upper and lower ends of two longitudinal axis are each provided with handle, respectively as draging guiding principle handle and manrope handle.

4. combined type horizontal expander according to claim 2, it is characterised in that:

Wherein, multiple canvas units are arranged in parallel along the longitudinal axis.

5. combined type horizontal expander according to claim 1, it is characterised in that:

Wherein, the baseplane and the rectangular triangle of top plane, described first at described second between folder Angle is 90 °, and the curvature of the third curve bevel edge is determined by the second side and first side of the N-Side surf,

The second side is connect with first side and the third curve bevel edge.

6. combined type horizontal expander according to claim 1, it is characterised in that:

Wherein, described first while length be less than described second while, the N-Side surf first side and second side of baseplane Between length ratio be 0.5.

7. combined type horizontal expander according to claim 1, it is characterised in that:

Wherein, it is fixed together between the baseplane, the top plane and the N-Side surf with suture way.