CN202226045U

CN202226045U - Paddle for ship

Info

Publication number: CN202226045U
Application number: CN2011202675944U
Authority: CN
Inventors: 袁勇平
Original assignee: FUYANG ZIJIE SPORTS OARS Co Ltd
Current assignee: FUYANG ZIJIE SPORTS OARS Co Ltd
Priority date: 2011-07-27
Filing date: 2011-07-27
Publication date: 2012-05-23
Anticipated expiration: 2021-07-27

Abstract

The utility model discloses a paddle for a ship, is used for overcoming the defects of large entry resistance, poor strength and low efficiency of a conventional paddle, and provides a paddle with large strength, and good performance and compensation. The paddle comprises a loom and a blade, wherein the surface of the blade is of a bilateral symmetric structure; the blade surface is inclined backward at a crossing angle between the central line of the blade surface and the loom being between 5 and 20 degrees; the water-facing surface of the blade is provided with a longitudinally raised ridge; the cross section of the middle section of the blade is of a herringbone shape on the water-facing surface but a circular shape on the backwater surface; left and right sides of the ridge are bent toward the water-facing surface and of a cambered structure; and two sides of the ridge are formed into concave curved shapes. In the paddle, the crossing angle formed by the surface of the blade and the loom is a most advantageous angle for a force application position; arrangement of the ridge can improve the blade strength and is advantageous to breaking wave when the paddle enters water and to preventing the paddle from drifting toward two sides and losing control; the circular backwater surface of the blade can lighten the eddy-making resistance of the backwater surface; the front end of the blade faces the water-facing surface and is arched in a cambered shape to compensate stress deflection of the blade; and the concave curved surfaces on two sides of the ridge can hold water in stroking, so that force can be applied easily.

Description

A kind of Marine paddle

Technical field

The utility model belongs to attachment technique peculiar to vessel field, is specifically related to a kind of Marine paddle.

Background technology

The paddle of ship; Kind is a lot, but its basic structure all is made up of outboard part of the oar two parts, and the basic demand of paddle is comprised that weight wants light, the part of shaking hands is comfortable, intensity wants firm durable; Especially mechanical property wants excellent; Draw thrust and want big, the resistance of entry water outlet should be little, preferably can these required all to take into account and satisfy.

For example Chinese patent ZL 200820164257.0, and name is called the utility model patent of " single-blade ", discloses a kind of single-blade, and it comprises loom and blade, it is characterized in that said loom is connected through the iron core that is arranged between the two with blade.This patent is not enough below obviously existing, and 1, blade (blade) be slab construction, the object of slab construction is in water when mobile, and the resistance that causes of the vortex low pressure current at the back side is very big thereafter, wastes crewman's muscle power; 2, outboard part of the oar connects with iron core, and blade is established joint in the junction, and joint is that plastic material is processed; The extraordinary relatively big steel pole junction of the joint of plastic material and rigidity is in the time spent of doing that receives moment of flexure; The distributed pole of application force is unbalanced, and the application force of putting edge for example at some is big especially, probably can make the surperficial contact strength of plastic material exceed contact strength allowable at these points; These points very likely at first are destroyed, and whole joint is damaged; 3, paddle paddling process in water; Blade can be that basic point produces deflection along the blade length direction because of the strong point that moment of flexure is done in order to palm; Especially when paddle moves to the state that is in to the dead aft paddling, the suffered counter-force to the dead ahead of blade is maximum, and the amount of deflection that blade produced is also maximum; This make each one of blade especially caudal part can not forward be exerted pressure by water because of deflection, therefore can not give full play to crewman's dynamic action; 4, the blade of writing board shape does not have " spine " or " axis ", can produce the sensation of " moving swiftly ", and blade has left or the right fluid defective out of control that moves when rowing the boat exactly.

Summary of the invention

The utility model technical issues that need to address are, the paddle that overcomes prior art goes into that water resistance is big, intensity difference, defective that hydraulic efficiency is low, provide that a kind of intensity is strong, hydraulic performance better, deformation-compensated Marine paddle arranged.

The purpose of the utility model is achieved through following technical proposals: a kind of Marine paddle, comprise outboard part of the oar, and the blade face of blade is the left-right symmetric structure, the angle of cut that the line of centers on blade face and loom formation are 5 °～20 ° recedes; The upstream face of blade is provided with a spine of protuberance longitudinally, and the transversal surface at the position, stage casing of blade is an arc-shaped structure being shaped as herringbone structure of upstream face and at back side; The left and right sides of said spine all is bent to form arcuate structure to upstream face, and the both sides of spine each form higher relatively on every side and the structure of the concave curve surface shape that the middle part is relatively low.The blade face of blade and loom form 5 °～20 ° the angle of cut and help when blade is in over against the rear crewman and the application of force of loom is done work be in best angle; Be provided with the branch water that cleaves when intensity that spine can improve blade helps the blade entry, alleviate, can prevent that particularly paddle from the runaway condition that moves swiftly to both sides taking place in water into water resistance; The back side of blade is that arc-shaped structure helps alleviating or eliminates the low pressure resistance of back side vortex arising; The structure of the concave curve surface shape of the both sides of spine can catch water when striking, help crewman's application of force.

As preferably, the front end position of said blade is towards the curved arching of upstream face; The front end position of blade can compensate the stressed amount of deflection that produces of blade towards the curved arching of upstream face.

As preferably, the front end edge of said blade is along being ellipsoidal structure, and its rear end is shrunk to taper and is provided with loom connection plug.Paddle needs to the left or to the right paddling to turn with the control fore sometimes to the right or left; Especially be in the boatman at stern position; Often to paddle be used as rudder for ship; Therefore usually need rotate paddle, the front end of blade is that ellipsoidal structure helps rotating conveniently, and the paddle back has rounded protuberance can make rotary resistance reduce.

As preferably, the junction of the blade face of said spine and its both sides is the arc transition face.The arc transition face mainly is based on the technologic consideration that needs.

As preferably, the line of centers on said blade face and loom form 9 °～11 ° the angle of cut.

The beneficial effect of the utility model is:

1, the blade face of blade and loom form certain angle of cut and are beneficial to the crewman acting is in best angle to the application of force of blade through loom;

2, be provided with the branch water that cleaves when spine improves the intensity of blade and is beneficial to the blade entry, alleviate, can prevent that paddle from the runaway condition that moves swiftly to both sides taking place into water resistance;

3, the back side of blade is that arc-shaped structure helps eliminating the low pressure resistance of back side vortex arising;

4, the front end position of blade can compensate the stressed amount of deflection that produces of blade towards the curved arching of upstream face;

5, the concave curve surface shape structure of spine both sides can catch water when striking, and helps crewman's application of force.

6, the front end edge of blade is along being ellipsoidal structure, and it is light to be beneficial to the rotation paddle.

Description of drawings

Fig. 1 is that the master of a kind of embodiment of the utility model looks scheme drawing;

Fig. 2 is A-A generalized section of Fig. 1;

Fig. 3 is that scheme drawing is looked on the left side of Fig. 1.

Among the figure, loom 1; Blade 2; Upstream face 21; Spine 22; Arc transition face 221; Back side 23; Front end position 24; Front end edge is along 25; Rear end 26; Connection plug 27; Concave curve surface shape 28.

The specific embodiment

Below in conjunction with accompanying drawing and specific embodiments the utility model is further described.

Embodiment: like Fig. 1, shown in Figure 2, a kind of Marine paddle comprises loom 1 and blade 2, and the blade face of blade 2 is the left-right symmetric structure, and the angle of cut that the line of centers on blade face and loom formation are 10 ° recedes; The upstream face 21 of blade 2 is provided with a spine 22 of protuberance longitudinally, and the transversal surface of position, the stage casing A-A of blade is arc-shaped structure being shaped as herringbone structure of upstream face 21 at back side 23; The front end position 24 of blade is towards the curved arching of upstream face; The left and right sides of said spine 22 is bent to form arcuate structure all forward, and the both sides of spine 22 each form higher relatively on every side and the structure of the concave curve surface shape 28 that the middle part is relatively low.The angle of cut that the blade face of blade 2 and loom 1 forms 10 ° helps when blade 2 is in over against the rear crewman and the application of force of loom 1 is done work is in best angle in water; Be provided with the intensity that spine 22 can improve blade 2, the branch water that cleaves when helping the blade entry alleviates into water resistance, can prevent that particularly paddle from the runaway condition that moves swiftly to both sides taking place in water; The back side 23 of blade 2 helps eliminating the low pressure resistance of back side vortex arising for arc-shaped structure; The front end position 24 of blade 2 can compensate the stressed amount of deflection that produces of blade towards upstream face 21 curved archings; The structure of the concave curve surface shape of the both sides of spine 22 can catch water when striking, help crewman's application of force.

The front end edge edge 25 of blade 2 is an ellipsoidal structure, and its rear end 26 is shrunk to taper and is provided with loom connection plug 27, and oval-shaped major semiaxis is got R300mm, and semi-minor axis is got R150mm, and is as shown in Figure 3.

Paddle needs to the left or to the right paddling to turn with the control fore sometimes to the right or left; Especially be in the boatman at stern position; Often to paddle be used as rudder for ship; Therefore usually need rotate paddle, the front end of blade is that ellipsoidal structure helps rotating conveniently, and the paddle back has rounded protuberance can make rotary resistance reduce.

Spine 22 is an arc transition face 221 with the junction of the blade face of its both sides, and the radius of circular arc is R10mm.

Claims

1. a Marine paddle comprises outboard part of the oar, it is characterized in that, the blade face of blade is the left-right symmetric structure, and the angle of cut that the line of centers on blade face and loom formation are 5 °～20 ° recedes; The upstream face of blade is provided with a spine of protuberance longitudinally, and the transversal surface at the position, stage casing of blade is an arc-shaped structure being shaped as herringbone structure of upstream face and at back side; The left and right sides of said spine all is bent to form arcuate structure to upstream face, and the both sides of spine each form higher relatively on every side and the structure of the concave curve surface shape that the middle part is relatively low.

2. a kind of Marine paddle according to claim 1 is characterized in that, the front end position of said blade is towards the curved arching of upstream face.

3. a kind of Marine paddle according to claim 1 and 2 is characterized in that, the front end edge of said blade is along being ellipsoidal structure, and its rear end is shrunk to taper and is provided with loom connection plug.

4. a kind of Marine paddle according to claim 1 and 2 is characterized in that, the junction of the blade face of said spine and its both sides is the arc transition face.

5. a kind of Marine paddle according to claim 1 and 2 is characterized in that, the line of centers on said blade face and loom form 9 °～11 ° the angle of cut.