Folding oar for water conservancy project

Abstract

The utility model relates to folding boat oar technical field, especially a folding boat oar for water conservancy project, including first boat oar pole, one side of first boat oar pole end portion rotatory connection has the pivot, first boat oar pole is connected with second boat oar pole through pivot rotation, the end of second boat oar pole fixedly connected with the paddle board, the outside of first boat oar pole and second boat oar pole junction place is sleeved with the limit sleeve, the utility model has the advantages of: through setting up the pivot between first boat oar pole and second boat oar pole, can make both relatively rotate, can fold the boat oar and reduce the volume when storing in the place of narrow space, the torsion spring can make boat oar pole keep in the elongation state in the unfolded state, and the convenient use is through setting up the limit sleeve of sliding in the junction place of first boat oar pole and second boat oar pole, when first boat oar pole and second boat oar pole merge, then limit sleeve slides to the junction place, and the junction position of two is reinforced.

Description

Technical Field

[0001] This utility model relates to the field of folding oar technology, and in particular to a folding oar for water conservancy projects. Background Technology

[0002] Water conservancy projects, as an important component of modern social infrastructure, involve multiple aspects such as flood control, irrigation, and power generation. They play a vital role in ensuring national economic security and promoting social development. In water conservancy engineering practice, boats are important tools for transportation and operation. Their performance and ease of use directly affect the efficiency and effectiveness of project implementation. In water conservancy projects, due to the variable operating environment and complex water conditions, fixed oars often cannot meet diverse usage needs. Especially in narrow waters, shallows, or complex terrain, the effectiveness of traditional oars is limited and may even affect the safety and stability of the boat. Therefore, a type of oar with folding and telescopic functions is needed.

[0003] A folding oar is disclosed in Chinese patent CN201620567032.4. When not in use, the folding oar can be folded up and the oar head can be bent. The length of the oar when folded is only one-third of the original length, which makes it easy for crew members to carry or store in toolboxes. It can also be equipped in motorboats and used as an emergency supply when the boat breaks down. However, the outer side of the folding oar has many protruding structures, making the oar shaft inconvenient to hold and affecting the user experience. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a folding oar for water conservancy projects, which effectively solves the deficiencies of the prior art.

[0005] The purpose of this utility model is achieved through the following technical solution: a folding oar for water conservancy projects, including a first oar rod, a rotating shaft rotatably connected to one side of the end of the first oar rod, a second oar rod rotatably connected to the first oar rod through the rotating shaft, a paddle plate fixedly connected to the end of the second oar rod, and a limit sleeve sleeved on the outer side of the connection between the first oar rod and the second oar rod.

[0006] Optionally, the diameters of the first and second propellers are matched, and a torsion spring is sleeved in the middle of the shaft, the torsion of which causes the axes of the first and second propellers to coincide.

[0007] The above technical solution involves setting a pivot between the first and second paddle shafts, allowing them to rotate relative to each other. This allows the paddles to be folded to reduce their size in confined spaces or during storage. In the folded state, a torsion spring keeps the paddle shafts in an extended position for easy use.

[0008] Optionally, the inner diameter of the limiting sleeve is adapted to the outer diameter of the second paddle rod, one side of the limiting sleeve is open, and the opening position of the limiting sleeve corresponds to the position of the rotating shaft.

[0009] The above technical solution involves setting a sliding limiting sleeve at the connection between the first and second paddle shafts. When the first and second paddle shafts are joined together, the limiting sleeve slides to the connection point, reinforcing the connection between the two parts and making the connection between the two paddle shafts more stable, thus preventing the paddle from swaying when used in the water.

[0010] Optionally, a circular groove is formed in the middle of the first oar rod, and the front and rear sides of the circular groove are connected to the outside. A connecting plate is fixedly connected to the top of the limiting sleeve. The connecting plate is located inside the circular groove. A compression spring is fixedly connected to the top of the connecting plate. The top of the compression spring is fixedly connected to the top of the circular groove.

[0011] The above technical solution is adopted: by setting a connecting plate with a compression spring at the top of the limiting sleeve, the limiting sleeve is subjected to a downward elastic force, so that the limiting sleeve is kept in the connection position of the two propeller rods under normal circumstances, thereby improving the stability of the limiting sleeve.

[0012] Optionally, a retaining ring is fitted into the middle of the first paddle rod. The retaining ring is made of magnetite and is located at the top of the circular groove. The second paddle rod and the limiting sleeve are both made of iron. The magnetic force of the retaining ring on the limiting sleeve is greater than the magnetic force of the compression spring.

[0013] The above technical solution is adopted: the magnetic force of the fixing ring on the limiting sleeve can attract and fix the limiting sleeve to the outside of the first propeller rod, so as to avoid the limiting sleeve being located at the joint and affecting the folding of the two propeller rods.

[0014] Optionally, an arc-shaped groove is provided on one side of the fixing ring, and the position and shape of the arc-shaped groove are adapted to the position and shape of the side of the second oar rod when it is folded. The magnetic force of the fixing ring on the second oar rod is greater than the torque of the torsion spring.

[0015] The above technical solution involves using a magnetic ring to hold the folded second paddle stick in place, allowing it to be used or stored in confined spaces.

[0016] This utility model has the following advantages:

[0017] 1. The folding oar used in this water conservancy project features a pivot between the first and second oar shafts, allowing them to rotate relative to each other. In confined spaces or during storage, the oar can be folded to reduce its size. In the folded state, a torsion spring keeps the oar shafts extended for easy use. A sliding limiting sleeve is installed at the joint of the first and second oar shafts. When the first and second oar shafts are joined together, the limiting sleeve slides to the joint, reinforcing the connection and making the connection between the two parts of the oar shafts more stable, preventing the oar from swaying when used in the water.

[0018] 2. The folding oar used in this water conservancy project uses a connecting plate with a compression spring at the top of the limiting sleeve. This plate applies a downward elastic force to the limiting sleeve, ensuring that the limiting sleeve remains in the connection position between the two oar rods under normal conditions, thus improving the stability of the limiting sleeve. The magnetic force of the fixing ring on the limiting sleeve can attract and fix the limiting sleeve to the outside of the first oar rod, preventing the limiting sleeve from affecting the folding of the two oar rods when it is located at the connection point.

[0019] 3. The folding oar used in this water conservancy project uses a fixing ring made of magnet material, which can attract and fix the folded second oar rod, keeping the second oar rod in a folded state, making it convenient to use or store the oar in a confined space. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A;

[0022] Figure 3 This utility model Figure 1 Enlarged structural diagram at point B;

[0023] Figure 4 This is a side view of the structure of this utility model;

[0024] Figure 5 This utility model Figure 4 Enlarged structural diagram at point C;

[0025] Figure 6 This is a cross-sectional structural diagram of the present invention;

[0026] Figure 7 This utility model Figure 6 A magnified structural diagram at point D.

[0027] In the diagram: 1-First paddle rod, 2-Shaft, 3-Second paddle rod, 4-Paddle plate, 5-Limiting sleeve, 6-Torsion spring, 7-Circular groove, 8-Connecting plate, 9-Compression spring, 10-Fixing ring, 11-Arc groove. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0029] like Figures 1 to 7 As shown, a folding oar for water conservancy projects includes a first oar rod 1, a rotating shaft 2 rotatably connected to one side of the end of the first oar rod 1, a second oar rod 3 rotatably connected to the first oar rod 1 via the rotating shaft 2, a paddle plate 4 fixedly connected to the end of the second oar rod 3, and a limiting sleeve 5 sleeved on the outer side of the connection between the first oar rod 1 and the second oar rod 3.

[0030] Example 1: The diameters of the first paddle shaft 1 and the second paddle shaft 2 are matched. A torsion spring 6 is sleeved in the middle of the pivot 2. The torsion of the torsion spring 6 makes the axes of the first paddle shaft 1 and the second paddle shaft 3 coincide. By setting the pivot 2 between the first paddle shaft 1 and the second paddle shaft 3, the two can rotate relative to each other. In places with limited space or when storing, the paddle can be folded to reduce its volume. In the folded state, the torsion spring 6 can keep the paddle shaft in an extended state for convenient use.

[0031] Example 2: The inner diameter of the limiting sleeve 5 is adapted to the outer diameter of the second paddle rod 1. One side of the limiting sleeve 5 is open, and the opening position of the limiting sleeve 5 corresponds to the position of the rotating shaft 2. By setting a sliding limiting sleeve 5 at the connection between the first paddle rod 1 and the second paddle rod 3, when the first paddle rod 1 and the second paddle rod 3 are combined, the limiting sleeve 5 is slid to the connection point to strengthen the connection between the two parts, making the connection between the two parts of the paddle rod more stable and preventing the paddle from shaking when used in the water.

[0032] Example 3: A circular groove 7 is provided in the middle of the first paddle rod 1. The front and rear sides of the circular groove 7 are connected to the outside. A connecting plate 8 is fixedly connected to the top of the limiting sleeve 5. The connecting plate 8 is located inside the circular groove 7. A compression spring 9 is fixedly connected to the top of the connecting plate 8. The top of the compression spring 9 is fixedly connected to the top of the circular groove 7. By setting the connecting plate 8 with the compression spring 9 at the top of the limiting sleeve 5, it applies a downward elastic force to the limiting sleeve 5, so that the limiting sleeve 5 is kept in the connection position of the two paddle rods under normal conditions, thereby improving the stability of the limiting sleeve.

[0033] Example 4: A fixing ring 10 is sleeved in the middle of the first paddle rod 1. The fixing ring 10 is made of magnet and is located at the top of the circular groove 7. The second paddle rod 3 and the limiting sleeve 5 are both made of iron. The magnetic force of the fixing ring 10 on the limiting sleeve 5 is greater than the magnetic force of the compression spring 9. The magnetic force of the fixing ring 10 on the limiting sleeve 5 can attract and fix the limiting sleeve 5 to the outside of the first paddle rod 1, so as to prevent the limiting sleeve 5 from being located at the joint and affecting the folding of the two paddle rods.

[0034] Example 5: An arc-shaped groove 11 is provided on one side of the fixing ring 10. The position and shape of the arc-shaped groove 11 are adapted to the position and shape of the side of the second paddle rod 3 when it is folded. The magnetic force of the fixing ring 10 on the second paddle rod 3 is greater than the torque of the torsion spring 6. By setting the fixing ring 10 to a magnetic material, it can attract and fix the folded second paddle rod 3, so that the second paddle rod 3 is kept in the folded state, which is convenient for using the paddle or storing it in a small space.

[0035] The working principle of this utility model is as follows:

[0036] S1. When the first paddle rod 1 and the second paddle rod 3 are combined, the limiting sleeve 5 is slid to the joint to reinforce the joint position of the two parts, making the connection between the two parts of the paddle rod more stable and preventing the paddle from shaking when used in the water.

[0037] S2. A connecting plate 8 with a compression spring 9 is provided at the top of the limiting sleeve 5, so that it applies a downward elastic force to the limiting sleeve 5, so that the limiting sleeve 5 is kept in the connecting position of the two propeller rods under normal conditions, thereby improving the stability of the limiting sleeve.

[0038] Compared with the prior art, the present invention has the following advantages:

[0039] 1. The folding oar used in this water conservancy project has a pivot 2 between the first oar shaft 1 and the second oar shaft 3, which allows the two to rotate relative to each other. In confined spaces or for storage, the oar can be folded to reduce its volume. In the folded state, the torsion spring 6 keeps the oar shaft in an extended state for easy use. By setting a sliding limiting sleeve 5 at the joint of the first oar shaft 1 and the second oar shaft 3, when the first oar shaft 1 and the second oar shaft 3 are combined, the limiting sleeve 5 slides to the joint to reinforce the joint position, making the connection between the two parts of the oar shaft more stable and preventing the oar from shaking when used in the water.

[0040] 2. The folding oar used in this water conservancy project has a connecting plate 8 with a compression spring 9 installed on the top of the limiting sleeve 5. This plate 8 applies a downward elastic force to the limiting sleeve 5, ensuring that the limiting sleeve 5 remains in the connection position of the two oar rods under normal conditions, thus improving the stability of the limiting sleeve. The magnetic force of the fixing ring 10 on the limiting sleeve 5 can attract and fix the limiting sleeve 5 to the outside of the first oar rod 1, preventing the limiting sleeve 5 from being located at the connection point and affecting the folding of the two oar rods.

[0041] 3. The folding oar used in this water conservancy project uses a fixing ring 10 made of magnet material, which can attract and fix the folded second oar rod 3, keeping the second oar rod 3 in a folded state, making it convenient to use or store the oar in a confined space.

Claims

1. A folding oar for water conservancy projects, characterized in that: It includes a first paddle rod (1), a rotating shaft (2) is rotatably connected to one side of the end of the first paddle rod (1), a second paddle rod (3) is rotatably connected to the first paddle rod (1) through the rotating shaft (2), a paddle plate (4) is fixedly connected to the end of the second paddle rod (3), and a limit sleeve (5) is sleeved on the outside of the connection between the first paddle rod (1) and the second paddle rod (3). The diameters of the first paddle rod (1) and the second paddle rod (3) are matched. A torsion spring (6) is sleeved in the middle of the rotating shaft (2). The torsion of the torsion spring (6) makes the axes of the first paddle rod (1) and the second paddle rod (3) coincide. The inner diameter of the limiting sleeve (5) is adapted to the outer diameter of the second paddle rod (3). One side of the limiting sleeve (5) is open, and the opening position of the limiting sleeve (5) corresponds to the position of the rotating shaft (2).

2. The folding oar for water conservancy projects according to claim 1, characterized in that: The first paddle rod (1) has a circular groove (7) in the middle. The front and rear sides of the circular groove (7) are connected to the outside. The top of the limiting sleeve (5) is fixedly connected to a connecting plate (8). The connecting plate (8) is located inside the circular groove (7). The top of the connecting plate (8) is fixedly connected to a compression spring (9). The top of the compression spring (9) is fixedly connected to the top of the circular groove (7).

3. A folding oar for water conservancy projects according to claim 2, characterized in that: A fixing ring (10) is sleeved in the middle of the first paddle rod (1). The fixing ring (10) is made of magnetite. The fixing ring (10) is located at the top of the circular groove (7). The second paddle rod (3) and the limiting sleeve (5) are both made of iron. The magnetic force of the fixing ring (10) on the limiting sleeve (5) is greater than the magnetic force of the compression spring (9).

4. A folding oar for water conservancy projects according to claim 3, characterized in that: An arc-shaped groove (11) is provided on one side of the fixing ring (10). The position and shape of the arc-shaped groove (11) are adapted to the position and shape of the side of the second paddle rod (3) when it is folded. The magnetic force of the fixing ring (10) on the second paddle rod (3) is greater than the torque of the torsion spring (6).

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