Propeller easy to maintain
By designing structures such as slots, blocks, springs and baffles on the propeller, the problem of difficult disassembly of propeller blades is solved, and the blades can be quickly disassembled and installed, thereby improving maintenance efficiency.
Patent Information
- Application Number
- CN202422697072.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-06
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-06
AI Technical Summary
Existing propellers require regular inspection and maintenance after long-term use, but the blades are not easy to disassemble, making the maintenance process time-consuming and labor-intensive.
The design of card slots, card blocks, springs, baffles and connecting blocks is adopted, combined with the structure of jacks, plug rods, springs and pull rods, to achieve rapid disassembly and installation of fan blades.
The fan blades can be quickly disassembled and installed, which improves maintenance efficiency and reduces maintenance time and labor intensity.
Smart Images

Figure CN223479316U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of propeller technology, and in particular to an easy-to-maintain propeller. Background Technology
[0002] A propeller is a device that converts the power of an engine into propulsion by rotating blades in air or water. The rearward side of the blades is a helical surface or a near-helical surface. The propeller of every ship is an important device for converting the power of the engine into propulsion.
[0003] Publication number CN220374736U discloses a propeller, including a circular shell, a propeller body, a fixed shell, a T-shaped rod, a first spring, a magnetic square, a through hole, a square rod, a metal ring, a second spring, a circular ring, a filter screen, an elliptical block, an elliptical block, a rotating pin, a return spring, a magnetic block, and a magnetic block. This invention mounts the fixed shell at the bottom end of the square rod. When the magnetic square aligns with the through hole, the T-shaped rod moves, causing the magnetic square to separate from the metal ring. Under the elastic force of the first spring, the T-shaped rod moves into the through hole, causing the two magnetic squares to come into contact with each other, thus mounting the fixed shell on the square rod. The circular ring is mounted on the annular side of the elliptical block. Rotating the elliptical block in the opposite direction causes the rotating pin to rotate, separating the magnetic block and the magnetic block. Under the elastic force of the return spring, the elliptical block rotates back to its original position, thus locking the circular ring onto the elliptical block. The filter screen design prevents seaweed from tangling on the propeller body. Although the propeller's filter design prevents aquatic plants from getting tangled on the propeller body, thus solving the problem of lacking aquatic plant entanglement function, the propeller still requires regular inspection and maintenance after prolonged use. During maintenance, the worn parts of the propeller blades need to be repaired, which requires disassembly. The propeller blades are not easy to disassemble, making maintenance time-consuming and labor-intensive, and improvements are needed. Utility Model Content
[0004] The purpose of this utility model is to solve the technical problems mentioned in the background art.
[0005] The present invention adopts the following technical solution: an easy-to-maintain propeller, comprising a cylinder, a fixing groove at the top of the cylinder, a cover plate fixedly installed inside the fixing groove, a slot on the surface of the cylinder, a connecting block fixedly installed inside the slot, a fan blade fixedly installed at the end of the connecting block away from the cylinder, a groove on the surface of the connecting block, a spring B fixedly installed inside the groove, a baffle fixedly installed at the end of the spring B near the cover plate, and a locking block fixedly installed at the end of the baffle away from the spring B.
[0006] Preferably, the connecting block and the slot are sized to match, the connecting block and the slot are slidably connected, and the slot and the block are snap-fitted together. Here, the connecting block, in conjunction with the slot, connects the fan blade and the cylinder together, and the block, in conjunction with the slot, fixes and limits the fan blade.
[0007] Preferably, the baffle and the groove are sized to match, and the baffle and the groove are slidably connected. Here, pressing the baffle can release the fixation of the fan blade.
[0008] Preferably, there are four sets of slots, which are evenly distributed on the surface of the cylinder. Here, multiple fan blades provide better performance.
[0009] Preferably, the cover plate has an insertion hole on its surface, a fixing post is fixedly installed on the surface of the cylinder, a pull rod is provided through the side of the fixing post away from the cylinder, a circular plate is fixedly installed at the end of the pull rod near the cylinder, an insertion rod is fixedly installed at the end of the circular plate away from the pull rod, and a spring A is sleeved on the surface of the pull rod. This configuration allows the cover plate to be fixed in place.
[0010] Preferably, the size of the insertion rod matches the size of the insertion hole, and the insertion rod and the insertion hole are slidably connected. Here, the insertion rod, in conjunction with the insertion hole, fixes the cover plate, securing the cover plate and the cylinder together.
[0011] Preferably, the circular plate and the fixed post are of matching specifications, and the circular plate and the fixed post are slidably connected. Here, pulling the pull rod causes the circular plate to release its restraint on the cover plate.
[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0013] 1. In this utility model, the fan blade can be easily disassembled for maintenance by setting up a slot, a locking block, a spring B, a groove, a baffle and a connecting block. First, remove the cover plate, then press the locking block to release the limiting of the connecting block. While pressing, pull the connecting block outward to quickly remove the fan blade, which is more time-saving and labor-saving.
[0014] 2. In this utility model, the cover plate can be fixed by the setting of the insertion hole, the insertion rod, the spring A, the fixing post and the pull rod, so as to prevent it from opening automatically. It is simple and convenient to use. When opening the cover plate, you only need to pull the pull rod on both sides to make the insertion rod leave the insertion hole. Attached Figure Description
[0015] Figure 1 A three-dimensional structural diagram of an easy-to-maintain propeller is provided for this utility model;
[0016] Figure 2 A partial exploded view of a propeller that is easy to maintain is provided for this utility model;
[0017] Figure 3 A cross-sectional view of a propeller that is easy to maintain is provided for this utility model;
[0018] Figure 4 This invention proposes an easy-to-maintain propeller. Figure 3 Enlarged view of point A in the middle;
[0019] Figure 5 A top view of an easy-to-maintain propeller is provided for this utility model;
[0020] Figure 6 This invention proposes an easy-to-maintain propeller. Figure 5 Enlarged view of section B in the middle.
[0021] Legend:
[0022] 1. Cylinder; 2. Cover plate; 3. Fan blade; 4. Fixing groove; 5. Insertion hole; 6. Fixing post; 7. Pull rod; 8. Spring A; 9. Circular plate; 10. Insert rod; 11. Connecting block; 12. Slot; 13. Groove; 14. Spring B; 15. Baffle; 16. Locking block. Detailed Implementation
[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0025] Example 1
[0026] Please see Figure 1-6 This utility model provides a technical solution: an easy-to-maintain propeller, including a cylinder 1, a fixing groove 4 at the top of the cylinder 1, a cover plate 2 fixedly installed inside the fixing groove 4, a slot 12 on the surface of the cylinder 1, a connecting block 11 fixedly installed inside the slot 12, a fan blade 3 fixedly installed at the end of the connecting block 11 away from the cylinder 1, a groove 13 on the surface of the connecting block 11, a spring B14 fixedly installed inside the groove 13, a baffle 15 fixedly installed at the end of the spring B14 near the cover plate 2, and a locking block 16 fixedly installed at the end of the baffle 15 away from the spring B14.
[0027] Please see Figure 5-6The connecting block 11 and the slot 12 are matched in specifications and are slidably connected. The slot 12 and the locking block 16 are snap-fit connected. The connecting block 11 and the slot 12 connect the fan blade 3 and the cylinder 1 together. The locking block 16 and the slot 12 fix and limit the fan blade 3. The baffle 15 and the groove 13 are matched in size and are slidably connected. Pressing the baffle 15 can release the fixing of the fan blade 3. There are four sets of slots 12. The four sets of slots 12 are evenly distributed on the surface of the cylinder 1. The use effect of multiple fan blades 3 is better.
[0028] Example 2
[0029] Please see Figure 3-4 The cover plate 2 has an insertion hole 5 on its surface. A fixing post 6 is fixedly installed on the surface of the cylinder 1. A pull rod 7 is installed through the side of the fixing post 6 away from the cylinder 1. A circular plate 9 is fixedly installed at the end of the pull rod 7 near the cylinder 1. An insertion rod 10 is fixedly installed at the end of the circular plate 9 away from the pull rod 7. A spring A8 is sleeved on the surface of the pull rod 7 to fix the cover plate 2. The size of the insertion rod 10 matches the size of the insertion hole 5. The insertion rod 10 and the insertion hole 5 are slidably connected. The insertion rod 10 and the insertion hole 5 fix the cover plate 2 together, fixing the cover plate 2 and the cylinder 1 together. The circular plate 9 and the fixing post 6 are matched in size. The circular plate 9 and the fixing post 6 are slidably connected. Pulling the pull rod 7 causes the circular plate 9 to release the limiting position on the cover plate 2.
[0030] Working principle: When maintaining the propeller, the operator first pulls the levers 7 on both sides. The levers 7 move the circular plate 9, which in turn moves the insert rod 10 away from the insertion hole 5, releasing the restriction on the cover plate 2. Then, the cover plate 2 is removed. Next, the locking block 16 is pressed, which compresses the spring B14 and releases the restriction on the connecting block 11. Then, while pressing the baffle 15, the connecting block 11 is pulled outward to quickly remove the fan blade 3 for maintenance. After maintenance, the locking block 16 is pressed, and the connecting block 11 is aligned with the slot 12 and inserted. After the locking block 16 is completely removed from the slot 12, the spring B14 pushes the baffle 15 back to its original position through the rebound force. Then, the levers 7 are released, and the cover plate 2 is aligned with the fixing slot 4 and inserted. When it is fully inserted, the levers 7 are released, and the spring A8 pushes the circular plate 9 back to its original position. The circular plate 9 moves the insert rod 10 into the insertion hole 5 to fix the cover plate 2, thus completing the installation of the cover plate 2.
[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.
Claims
1. An easy-to-maintain propeller comprising a cylinder (1), characterized in that: The top of the cylinder (1) is provided with a fixing groove (4), and a cover plate (2) is fixedly installed inside the fixing groove (4). The surface of the cylinder (1) is provided with a slot (12), and a connecting block (11) is fixedly installed inside the slot (12). A fan blade (3) is fixedly installed at the end of the connecting block (11) away from the cylinder (1). A groove (13) is provided on the surface of the connecting block (11), and a spring B (14) is fixedly installed inside the groove (13). A baffle (15) is fixedly installed at the end of the spring B (14) near the cover plate (2), and a locking block (16) is fixedly installed at the end of the baffle (15) away from the spring B (14).
2. The easy-to-maintain propeller according to claim 1, characterized in that: The connecting block (11) and the slot (12) are matched in specifications, the connecting block (11) and the slot (12) are slidably connected, and the slot (12) and the block (16) are snap-fit connected.
3. The easy-to-maintain propeller according to claim 1, characterized in that: The baffle (15) is the same size as the groove (13), and the baffle (15) and the groove (13) are slidably connected.
4. The easy-to-maintain propeller according to claim 1, characterized in that: There are four sets of slots (12), which are evenly distributed on the surface of the cylinder (1).
5. The easy-to-maintain propeller according to claim 1, characterized in that: The cover plate (2) has an insertion hole (5) on its surface. A fixing post (6) is fixedly installed on the surface of the cylinder (1). A pull rod (7) is provided through the side of the fixing post (6) away from the cylinder (1). A circular plate (9) is fixedly installed at the end of the pull rod (7) near the cylinder (1). An insertion rod (10) is fixedly installed at the end of the circular plate (9) away from the pull rod (7). A spring A (8) is sleeved on the surface of the pull rod (7).
6. The easy-to-maintain propeller according to claim 5, characterized in that: The size of the insertion rod (10) matches that of the insertion hole (5), and the insertion rod (10) and the insertion hole (5) are slidably connected.
7. The easy-to-maintain propeller according to claim 5, characterized in that: The circular plate (9) and the fixed column (6) are matched in specifications, and the circular plate (9) and the fixed column (6) are slidably connected.
Citation Information
Patent Citations
Cylindrical structure of ship propeller convenient to maintain
CN220374736U