Lightweight paddle blade

Abstract

The utility model discloses a lightweight paddle, which relates to the technical field of paddles and comprises a paddle body. A cavity is formed in the paddle main body, the cavity is filled with a buoyancy material layer, the paddle main body is made of a carbon fiber material, the whole paddle main body is made of the carbon fiber material, and the paddle main body which is high in strength and light in weight is manufactured by stacking multiple layers of carbon fiber prepreg cloth and curing through a hot pressing process and is manufactured through a mold. The cavity is formed in the paddle body during hot press molding, the cavity is filled with the buoyancy material layer made of polyurethane foam, and therefore the whole paddle body can float on the water surface without sinking after falling into water by means of buoyancy of the buoyancy material layer, and the paddle body has the characteristics of being light, high in strength and capable of floating. A user can row more easily and efficiently in the use process, the risks of deformation and breakage are reduced, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of paddle, especially to a light-weight ship paddle paddle. BACKGROUND

[0002] The ship paddle is a tool for manually propelling the ship forward. It is usually composed of a long handle and a flat end (i.e. the paddle). The user inserts the paddle into the water and applies force, causing the water to generate a reaction force on the paddle, thereby propelling the ship to move. The paddle is a part of the ship paddle, specifically the part that directly contacts the water and is responsible for generating the propulsive force. Its design is crucial for the speed, stability, and maneuverability of the ship.

[0003] As one of the power sources for racing boats and kayaks, having a light and high-strength paddle is a key factor in winning the race. Current paddles are generally made of plastic material. Although they have certain strength and durability, they still have many shortcomings, such as being heavy, easily corroded, easily deformed, and even broken. Moreover, current paddles do not have the feature of floating on water. If the user accidentally drops the paddle into the water during use, the paddle will quickly sink, greatly increasing the difficulty of retrieving the paddle, especially in open water or deep water, which can cause economic losses.

[0004] To address the above problems, it is necessary to propose a new technical solution. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims to provide a technical solution that can solve the above problems.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a light-weight ship paddle paddle, comprising a paddle main body; the paddle main body has a cavity inside; the cavity is filled with a buoyancy material layer; and the paddle main body is made of carbon fiber material.

[0007] As a further solution of the utility model: the paddle main body is provided with a shaft connecting component, the shaft connecting component is provided with a shaft insertion hole, the shaft connecting component is integrally formed with the paddle main body, and the cavity is formed to include the part of the shaft connecting component.

[0008] As a further solution of the utility model: the material of the buoyancy material layer is polyurethane foam.

[0009] As a further solution of the utility model: the thickness of the buoyancy material layer is 3.3 mm, the paddle main body forms a double-layer structure through the cavity, and the single-layer thickness of the paddle main body is 0.8 mm.

[0010] As a further solution of the utility model: the paddle main body is designed as a whole curve.

[0011] Compared with the prior art, the beneficial effects of the technical scheme are that: the paddle body is made of carbon fiber material, and is formed by stacking multiple layers of carbon fiber prepreg and curing through a hot pressing process, so as to form a paddle body with high strength and light weight; the paddle body is formed with a cavity when hot-pressed by a mold; and the cavity is filled with a buoyancy material layer made of polyurethane foam, so that the entire paddle body can float on the water surface after falling into the water without sinking, thereby making the paddle body have the characteristics of light weight, high strength and floatability, which not only makes the user feel more comfortable and efficient when using the paddle, but also reduces the risk of deformation and breakage and prolongs the service life.

[0012] After multiple buoyancy tests, the thickness of the paddle body (carbon fiber) is adjusted to 0.8 mm, and the thickness of the buoyancy material layer (polyurethane foam) is adjusted to 3.3 mm, so that the oar and the paddle body can float on the water after being assembled, and the strength of the paddle body can meet the requirements, so that by adjusting the proportion of the paddle body and the buoyancy material layer, the buoyancy of the oar can be accurately controlled, so that the oar can reach an ideal balance state in the water, neither sinking too much nor floating too much, so as to avoid the situation that the resistance of the paddle body cutting into the water surface becomes larger when the user uses it.

[0013] After the oar and the paddle body are assembled, the integrally formed oar connecting part and the paddle body can improve the overall strength, thereby ensuring that the oar connecting part and the paddle body will not be separated when the user uses them; at the same time, the oar connecting part also has a buoyancy material layer inside, which can ensure that the buoyancy of the paddle body is not affected.

[0014] The additional aspects and advantages of the present application will be partially given in the following description, and some will become apparent from the following description, or will be understood by those skilled in the art through practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creating any creative labor.

[0016] Figure 1 is a schematic view of the overall structure of the present application;

[0017] Figure 2 is a schematic view of the structure of the present application from another angle;

[0018] Figure 3 is a cross-sectional structure schematic diagram of the utility model;

[0019] Figure 4 is Figure 3 is a local structure amplification schematic diagram at A in the middle;

[0020] The corresponding label in the drawing is explained as follows:

[0021] 1, paddle main body;2, cavity;3, buoyancy material layer;4, paddle rod connecting component;5, paddle rod insertion hole. Specific implementation

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] Please refer to Figures 1-4 A light-weighted boat paddle paddle blade, comprising a paddle main body 1;The paddle main body 1 has a cavity 2 inside, the cavity 2 is filled with a buoyancy material layer 3, and the paddle main body 1 is made of carbon fiber material.

[0024] In the technical scheme of the utility model, the paddle main body 1 is made of carbon fiber material, and is formed by stacking multiple layers of carbon fiber prepreg and curing through hot pressing process, so that a paddle main body 1 with high strength and light weight is formed, and the paddle main body 1 is formed with a cavity 2 when hot pressing, and the cavity 2 is filled with a buoyancy material layer 3 with polyurethane foam, so that the entire paddle main body 1 can float on the water surface after falling into the water without sinking, so that the paddle main body 1 has the characteristics of light weight, high strength and floatability, which not only makes the user use more easily and efficiently, but also reduces the risk of deformation and fracture, and prolongs the service life;

[0025] Specifically, carbon fiber is a kind of high-strength, low-density composite material, compared with traditional plastic or metal material, the paddle main body 1 can be made of carbon fiber to meet the strength requirement, while the weight of the paddle main body 1 can be significantly reduced, and the carbon fiber has excellent tensile strength, which can keep the paddle main body 1 high rigidity during use, effectively reducing the deformation and fracture of the paddle main body 1;

[0026] In addition, the carbon fiber material also has excellent corrosion resistance, is not affected by seawater, freshwater and most chemicals, so that the paddle main body 1 can perform well in various water environments and show stronger adaptability;

[0027] For the material of the buoyancy material layer 3, polyurethane foam, in addition to having buoyancy, lightweight is an important characteristic of polyurethane foam, which makes the filling of polyurethane foam not excessively increase the overall weight of the paddle body 1, so as to achieve the characteristics of having floating characteristics while maintaining the light weight of the paddle body 1;

[0028] Meanwhile, polyurethane foam also has good energy absorption characteristics, which can absorb the impact force generated by the paddle body 1 and the water flow each time the user paddles, so as to reduce the vibration transmitted to the user's arm, thereby reducing the fatigue feeling brought to the user by long-time rowing.

[0029] In the embodiment of the utility model, further propose that the thickness of buoyancy material layer 3 is 3.3mm, and the paddle body 1 forms double-layer structure through the opening of cavity 2, wherein the single-layer thickness of paddle body 1 is 0.8mm;

[0030] The utility model discloses through the verification of multiple buoyancy tests, adjust the single-layer thickness of paddle body 1 (carbon fiber) to 0.8mm, and the thickness of buoyancy material layer 3 (polyurethane foam) is adjusted to 3.3mm, so that after the assembly of paddle and paddle body 1 forms the boat paddle, the boat paddle can float on the water, and the strength of paddle body 1 can meet the requirements, so that by adjusting the proportion of paddle body 1 (carbon fiber) and buoyancy material layer 3 (polyurethane foam), the buoyancy of the boat paddle can be accurately controlled, so that the boat paddle can reach the ideal balance state in the water, neither excessively sinking nor excessively floating, so as to avoid that the user uses when the resistance of paddle body 1 cutting into the water surface becomes larger due to excessive buoyancy.

[0031] In the embodiment of the utility model, further propose that paddle body 1 is provided with paddle rod connecting part 4, paddle rod connecting part 4 is provided with paddle rod insertion hole 5, paddle rod connecting part 4 is integrally formed with paddle body 1, and the opening of cavity 2 includes part of paddle rod connecting part 4;

[0032] When paddle body 1 and paddle rod are assembled, the paddle rod is inserted through the reserved paddle rod insertion hole 5 of paddle rod connecting part 4 to complete the assembly of paddle body 1 and paddle rod, wherein paddle rod connecting part 4 is integrally formed with paddle body 1, and the formation of cavity 2 covers paddle rod connecting part 4, that is, the structure of paddle rod connecting part 4 also has the level formed by paddle body 1 and buoyancy material layer 3;

[0033] After the assembly of paddle rod and paddle body 1, integrally formed paddle rod connecting part 4 and paddle body 1 can improve the overall strength, thereby ensuring that paddle rod connecting part 4 and paddle body 1 do not appear separated during use;

[0034] Meanwhile, the inside of the part of paddle rod connecting part 4 also has buoyancy material layer 3, which can ensure that the buoyancy of paddle body 1 is not affected.

[0035] In the embodiment of the utility model, further propose paddle main body 1 whole is curved design;

[0036] When the user is rowing, the curved paddle main body 1 can cut the water surface more effectively, reduce the resistance when the user is rowing, at the same time, the curved design makes the shape of paddle main body 1 accord with the flow characteristics of water, can keep more stable contact area in the rowing process, can make paddle main body 1 better convert the power of athlete into the thrust of advancing, ensure that each rowing can fully utilize the power of athlete, reduce energy loss.

[0037] For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A lightweight boat paddle blade, characterized by, The paddle body (1) is internally provided with a cavity (2) filled with a layer of buoyancy material (3), and the paddle body (1) is made of carbon fiber material.

2. The lightweight boat paddle blade of claim 1, wherein, The paddle body (1) is provided with a paddle rod connecting part (4) provided with a paddle rod insertion hole (5), the paddle rod connecting part (4) is integrally formed with the paddle body (1), and the cavity (2) is provided with a part containing the paddle rod connecting part (4).

3. The lightweight boat paddle blade of claim 1, wherein, The material of the buoyancy material layer (3) is polyurethane foam.

4. The lightweight boat paddle blade of claim 3, wherein, The thickness of the buoyancy material layer (3) is 3.3mm, and the paddle body (1) forms a double-layer structure through the cavity (2), wherein the single-layer thickness of the paddle body (1) is 0.8mm.

5. The lightweight boat paddle blade of claim 1, wherein, The paddle body (1) is designed as a whole in a curved manner.

Images