A boat paddle

Abstract

The utility model relates to a ship oar structure technical field, concretely is a kind of ship oar, ship oar includes paddle and oar pole, its characterized in that the paddle includes integrally-formed paddle body part and paddle insertion part, the insertion boss of the paddle insertion part is respectively symmetrically equipped on the upper and lower sides of the connecting place of paddle body part and paddle insertion part, the axis of two insertion bosses is arranged on the vertical plane of the axis of paddle body part and is parallel with the axis of paddle body part, the insertion slot hole of the symmetrical position of the upper and lower sides of the connecting position of the oar pole end and paddle insertion part is equipped with respectively with two insertion bosses, the rear end of oar pole is equipped with the round hole in same straight line with the insertion slot hole of upper side, the end of oar pole is inserted into paddle insertion part by insertion slot hole and insertion boss cooperation, it has simple structure, installation speed is fast, paddle axis and marble axis are in same vertical plane, and the advantages such as good feeling of stirring.

Description

Technical Field

[0001] This utility model relates to the field of paddle structure technology, specifically a paddle with a simple structure, fast installation speed, paddle blade axis and ball bearing axis on the same vertical plane, and good hand feel when turned. Background Technology

[0002] As we all know, a paddle is a rowing tool used to propel a boat forward. Utilizing the lever principle, a paddle mimics the pectoral and pelvic fins of a fish. During its movement in the water, it propels the boat forward through the reaction force of the water waves. A paddle generally consists of a shaft and blades. The shaft is inserted and fixed to the tail end of the blades. The shaft is typically a plug-in or telescopic type, with adjacent shafts usually secured by ball bearings. This requires punching round holes on the shaft for the ball bearings to engage. However, existing paddle shafts generally only have these round holes punched. During installation, workers often have to manually align these holes by feel to ensure they are on the blade's axis. This introduces an error between the hole and the blade's axis, affecting the user's feel later on. Furthermore, manual installation is very inefficient, as it's difficult to guarantee the hole is perpendicular to the blade's axis. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a paddle with a simple structure, fast installation speed, paddle axis and ball axis on the same vertical plane, and good tactile feedback when turned.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A boat paddle, comprising a blade and a shaft, characterized in that the blade comprises an integrally formed blade body and a blade insertion part, wherein the blade insertion part at the connection between the blade body and the blade insertion part is symmetrically provided with insertion bosses on the upper and lower sides, the axes of the two insertion bosses are located on a vertical plane of the axis of the blade body and are parallel to the axis of the blade body, the upper and lower sides of the connection position between the end of the shaft and the blade insertion part are symmetrically provided with insertion slots that mate with the two insertion bosses respectively, the rear end of the shaft is provided with a circular hole that is in the same straight line as the upper insertion slot, and one end of the shaft is inserted into the blade insertion part through the insertion slot and the insertion boss.

[0006] The blade insertion part of this invention has an annular protrusion on its circumference. The annular protrusion is interference-fitted with the inner wall of the blade end to ensure the stability of the connection between the blade and the blade.

[0007] The annular protrusions of this invention are evenly distributed along the axial direction of the blade insertion part, at least five in total, to ensure the tightness and sealing of the connection between the propeller shaft and the blade insertion part.

[0008] The blade insertion part of this utility model has an annular guide slope on the end circumference to facilitate the insertion of the blade rod.

[0009] This utility model, due to the above-mentioned structure, has the advantages of simple structure, fast installation speed, the paddle axis and the ball axis being on the same vertical plane, and good tactile feedback. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the blade structure of this utility model.

[0011] Figure 2 yes Figure 1 A magnified view of the middle blade insertion section.

[0012] Figure 3 yes Figure 2 A magnified view of the middle blade insertion section from another direction.

[0013] Figure 4 This is a schematic diagram of the structure of the propeller rod of this utility model. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings:

[0015] A boat paddle, comprising a blade and a shaft 4, characterized in that the blade comprises an integrally formed blade body 1 and a blade insertion part 2, wherein the blade insertion part 2 at the connection between the blade body 1 and the blade insertion part 2 is symmetrically provided with insertion bosses 3 on its upper and lower sides, the axes of the two insertion bosses 3 being located on a vertical plane of the axis of the blade body 1 and parallel to the axis of the blade body 1, the upper and lower sides of the connection position between the end of the shaft 4 and the blade insertion part are symmetrically provided with insertion slots 5 that respectively mate with the two insertion bosses 3, the rear end of the shaft 4 is provided with a circular hole 6 that is in the same straight line as the upper insertion slot 5, and one end of the shaft 4 is inserted into the blade insertion part 2 through the insertion slot 5 and the insertion bosses 3.

[0016] Furthermore, the blade insertion portion is provided with an annular protrusion 7 on its circumference. The annular protrusion 7 is interference-fitted with the inner wall of the end of the propeller rod 4 to ensure the stability of the connection between the propeller rod 4 and the blade.

[0017] Furthermore, at least five annular protrusions 7 are evenly distributed along the axial direction of the blade insertion part 2 to ensure the tightness and sealing of the connection between the propeller rod 4 and the blade insertion part 2.

[0018] Furthermore, the blade insertion part 2 has an annular guide slope 8 on its end circumference to facilitate the insertion of the blade 4.

[0019] In the manufacturing process of this invention, the blade body 1, the blade insertion part 2, the insertion boss 3 on the blade insertion part 2, and the annular protrusion 7 on the blade insertion part 2 are integrally formed in an injection molding machine. The axis of the insertion boss 3 is located on the axis of the blade body and is perpendicular to the blade body in a vertical plane. The insertion slot 5 and the round hole 6 on the blade 4 are stamped by a coaxial stamping machine, so that the insertion slot 5 and the round hole 6 are on the same straight line on the side wall of the blade 4, and this straight line is parallel to the axis of the blade 4. After the blade 4 and the blade are manufactured, the worker directly inserts the insertion slot 5 at the end of the blade 4 into the insertion boss 3 of the blade, which directly ensures that the position of the round hole 6 is on the axis of the blade body and parallel to the blade. On the vertical plane perpendicular to the main body, the spring in the circular hole 6 is also on the vertical plane perpendicular to the blade body axis. Therefore, workers do not need to find the axis by feel during the insertion process, which speeds up the installation. Moreover, it can ensure that the blade axis and the ball axis are on the same vertical plane. The end blade is inserted into the circular hole at the rear end of the blade, and the spring is installed in the end blade. The end blade is connected to the circular hole at the rear end of the blade through the ball. The paddle has a good feel when turned. The rear end of the blade at the end of this invention is connected to a handle. This structure is existing technology and is not shown in the figure. Due to the above structure, this invention has the advantages of simple structure, fast installation speed, blade axis and ball axis on the same vertical plane, and good feel when turned.

Claims

1. A boat oar, comprising oar blades and oar shaft, characterized in that... The blade includes an integrally formed blade body and a blade insertion part. The blade insertion part at the connection between the blade body and the blade insertion part is provided with symmetrical insertion bosses on the upper and lower sides. The axes of the two insertion bosses are located on the vertical plane of the axis of the blade body and are parallel to the axis of the blade body. The upper and lower sides of the connection position between the blade end and the blade insertion part are provided with symmetrical insertion slots that mate with the two insertion bosses respectively. The rear end of the blade is provided with a circular hole that is in the same straight line as the insertion slot on the upper side. One end of the blade is inserted into the blade insertion part through the insertion slot and the insertion boss.

2. The oar according to claim 1, characterized in that... The blade has an annular protrusion on its circumference at the insertion part, and the annular protrusion is inserted into the inner wall of the end of the blade with an interference fit.

3. A paddle according to claim 2, characterized in that... The annular protrusions are evenly distributed in at least five along the axial direction of the blade insertion part.

4. A paddle according to claim 1, characterized in that... The blade insertion part has an annular guide slope on its end circumference.

Images