A pusher propeller that can be operated in a water flow

Abstract

The utility model discloses a can push propeller in water flow relates to underwater propeller field, the utility model discloses a shell is installed with the connecting frame in the inside of shell, is installed with the bearing seat on the connecting frame, and the bearing seat is connected with the drive shaft through the sealed bearing in. The utility model discloses be provided with the vertical board, the blocking lever, the turning plate, the movable ring, the electric push rod, the first pin shaft and the second pin shaft, because the blocking lever is closed and forms " the protective net frame " under normal conditions, intercepts the plastic bag sundry in water, thereby prevents the plastic bag sundry from entering to the inside of shell, when needing to reduce the resistance in the sundry -free environment, need when make the blocking lever open, can start the electric push rod through the external control system, and the electric push rod work can make piston rod contract, and then drive movable ring moves to the electric push rod direction, and movable ring drives the turning plate rotation, and drive the blocking lever rotation and open, the blocking lever no longer shades the water inlet and outlet at this moment, and then can reduce the resistance.

Description

Technical Field

[0001] This utility model relates to the field of underwater propulsion propellers, specifically a propeller that can propel itself in water flow. Background Technology

[0002] An underwater propulsion device is used to provide power to underwater or surface equipment, propelling it forward. An underwater propulsion propeller mainly consists of a hub and several blades radially fixed to the hub. The hub is the central component of the propeller, used to connect the drive shaft, while the blades are the key part that generates thrust. Their shape, size, and number are designed according to different application scenarios and performance requirements. Its working principle follows Newton's third law, using energy conversion to push water and generate a reaction force to achieve forward propulsion. When the propeller rotates in the water, the blades push the water backward, while the water exerts an equal and opposite reaction force on the blades. This reaction force is the driving force propelling the underwater equipment forward.

[0003] According to Chinese Patent No. CN213502858U, a novel underwater propeller propulsion device is disclosed. In use, the user starts the drive motor, which drives the rotating shaft to rotate, which in turn drives the propeller to rotate, and the propeller drives the rotating seat to rotate. The positioning frame and left positioning rod can position the left end of the sealed box, while the right positioning frame and right positioning rod can position the right positioning seat. The right positioning seat, through the rotating seat, positions the propeller, preventing it from falling off. This reduces the occurrence of propeller detachment, enhances safety, and improves practicality.

[0004] Regarding the aforementioned patent content, existing underwater propellers are easily entangled by debris such as plastic bags in the water during operation, causing propeller jamming, power reduction, or even motor burnout, affecting equipment reliability. Therefore, protective structures are currently added to the inlet and outlet of the underwater propeller, and these protective structures are generally fixed net covers, which can block plastic bags. However, fixed net covers cannot be adjusted according to changes in the water flow environment, and will still generate additional resistance in clean water without debris, thereby reducing the applicability of the underwater propeller. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a propeller that can be driven in water flow to solve the technical problem that the fixed net cover cannot be adjusted according to changes in the water flow environment.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a propeller that can propel a propeller in water flow, comprising a housing, a connecting frame installed inside the housing, a bearing seat installed on the connecting frame, and a drive shaft connected to the bearing seat via a sealed bearing, a propeller installed at one end of the drive shaft, a movable ring fitted on the outer wall of the housing, electric push rods installed at the top and bottom of the housing, and the output end of the electric push rods being fixedly connected to the movable ring via a piston rod, and multiple vertical plates fixed on the outer wall of the housing, with a stop rod connected to the vertical plate via a first pin, and a rotating plate rotatably connected to the movable ring via a second pin.

[0007] By adopting the above technical solution, the propeller rotates at high speed under the drive shaft, pushing the water flow backward and generating a reaction force according to Newton's third law, thus driving the equipment forward.

[0008] Furthermore, a mounting shell is installed on one side of the connecting frame, and a servo motor and a reducer are respectively installed inside the mounting shell. The output shaft of the servo motor is connected to the input shaft of the reducer, and the output shaft of the reducer is fixedly connected to the drive shaft.

[0009] By adopting the above technical solution, the servo motor provides the original power, and after the speed is reduced and the torque is amplified by the reducer, the power is transmitted to the drive shaft.

[0010] Furthermore, the movable ring is slidably connected to the outer shell.

[0011] By adopting the above technical solution, the movable ring can slide on the outer shell, and the movement of the movable ring can drive the rotating plate to rotate.

[0012] Furthermore, multiple stop bars are arranged in a circular array on the outer casing, and the stop bars are made of 316 stainless steel.

[0013] By adopting the above technical solution, a "protective net frame" is formed when the net is closed under normal conditions to intercept plastic bags and other debris in the water.

[0014] Furthermore, multiple barbs are fixed to one side of the stop bar.

[0015] By adopting the above technical solution, the barb design prevents debris from falling out of the gap between the baffle bar under the impact of water flow, thus enhancing the reliability of interception.

[0016] Furthermore, the stop bar is rotatably connected to the vertical plate via a first pin.

[0017] By adopting the above technical solution, the stop lever can be rotated through the first pin, thereby allowing the stop lever to rotate open or close.

[0018] Furthermore, the propeller is located inside the outer casing and is made of 316 stainless steel.

[0019] By adopting the above technical solution, the outer shell can protect the propeller.

[0020] Furthermore, the mounting shell is made of aluminum alloy, and its surface is treated with anti-corrosion measures.

[0021] By adopting the above technical solutions, the corrosion resistance of the mounting shell is improved, thereby extending the service life of the mounting shell.

[0022] Furthermore, both the servo motor and the electric push rod are electrically connected to an external control system.

[0023] By adopting the above technical solution, it is possible to start or stop the servo motor and electric actuator through an external control system.

[0024] In summary, the present invention has the following main advantages: 1. This utility model is equipped with a vertical plate, a baffle, a rotating plate, a movable ring, an electric push rod, a first pin, and a second pin. When the baffle is closed in its normal state, it forms a "protective mesh frame" that intercepts plastic bag debris in the water, preventing it from entering the outer shell and avoiding it from getting tangled on the propeller and affecting its normal operation. This improves the protection of the propeller. When the underwater propulsion propeller needs to reduce resistance in a debris-free environment, the baffle needs to be opened. At this time, the electric push rod can be activated through an external control system. The electric push rod's operation causes the piston rod to retract, which in turn moves the movable ring towards the electric push rod. The movable ring then rotates the rotating plate, causing the baffle to rotate and open. At this point, the baffle no longer obstructs the inlet and outlet, thus reducing resistance and improving the performance of the underwater propulsion propeller. Therefore, the baffle angle can be adjusted according to the working environment of the underwater propulsion propeller to open or close the baffle, improving its applicability. 2. This utility model is equipped with barbs, which can prevent debris from falling out of the gap of the baffle under the impact of water flow, thus enhancing the reliability of interception; 3. The mounting shell of this utility model is made of aluminum alloy material, and the surface of the mounting shell is treated to improve the corrosion resistance of the mounting shell and make the mounting shell have thermal conductivity, thereby enabling the servo motor to dissipate heat. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 2 This is a schematic diagram of the overall orthographic structure of this utility model; Figure 3 This is a schematic diagram of the outer shell structure of this utility model; Figure 4 This is a schematic diagram of the outer shell structure of this utility model; Figure 5 This is a schematic diagram of the mounting shell structure of this utility model; Figure 6 This is a schematic diagram of the stop bar structure of this utility model.

[0026] In the diagram: 1. Outer shell; 2. Connecting frame; 3. Mounting shell; 4. Reducer; 5. Drive shaft; 6. Bearing seat; 7. Propeller; 8. Vertical plate; 9. First pin; 10. Stop bar; 11. Rotating plate; 12. Movable ring; 13. Electric push rod; 14. Servo motor; 15. Second pin; 16. Barb. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0028] The embodiments of this utility model will be described below based on its overall structure.

[0029] Example 1: A type that can propel a propeller in water flow, such as Figures 1-6 As shown, the device includes an outer casing 1, inside which a connecting frame 2 is installed. A bearing seat 6 is installed on the connecting frame 2, and a drive shaft 5 is connected to the bearing seat 6 through a sealed bearing. A propeller 7 is installed at one end of the drive shaft 5. A movable ring 12 is fitted on the outer wall of the outer casing 1. Electric push rods 13 are installed at the top and bottom of the outer casing 1, and the output end of the electric push rod 13 is fixedly connected to the movable ring 12 through a piston rod. The propeller 7 rotates at high speed under the drive of the drive shaft 5, pushing the water flow backward. According to Newton's third law, a reaction force is generated to drive the device forward.

[0030] Specifically, the outer wall of the outer shell 1 is also fixed with multiple vertical plates 8, and the vertical plates 8 are connected to the baffles 10 by the first pin 9. The baffles 10 and the movable ring 12 are rotatably connected to the rotating plate 11 by the second pin 15. The baffles 10 are rotatably connected to the vertical plates 8 by the first pin 9 so that the baffles 10 can rotate by the first pin 9, thereby allowing the baffles 10 to rotate open or close. Multiple baffles 10 are distributed in a ring array on the outer shell 1. The baffles 10 are made of 316 stainless steel. In the normal state, they are closed to form a "protective net frame" to intercept plastic bag debris in the water. Half of the baffles 10 are attached to the outer wall of the mounting shell 3.

[0031] See Figures 1-5A mounting shell 3 is installed on one side of the connecting frame 2. A servo motor 14 and a reducer 4 are installed inside the mounting shell 3. The output shaft of the servo motor 14 is connected to the input shaft of the reducer 4. The output shaft of the reducer 4 is fixedly connected to the drive shaft 5. The servo motor 14 is an industrial-grade waterproof motor with an IP68 protection rating. The servo motor 14 provides the original power. After the speed is reduced and the torque is amplified by the reducer, the power is transmitted to the drive shaft. The movable ring 12 is slidably connected to the outer shell 1 so that the movable ring 12 can slide on the outer shell 1. The movement of the movable ring 12 can push the rotating plate 11 to rotate. The propeller 7 is located inside the outer shell 1. The propeller 7 is made of 316 stainless steel. The outer shell 1 can protect the propeller 7. The servo motor 14 and the electric push rod 13 are electrically connected to the external control system so that the servo motor 14 and the electric push rod 13 can be started or stopped by the external control system.

[0032] Example 2: Based on the above embodiment 1, in order to improve the performance of the baffle 10, the following structure will be set to enhance the reliability of interception.

[0033] Specifically, multiple barbs 16 are fixed on one side of the baffle 10. The barbs 16 prevent debris from falling out of the gap between the baffle under the impact of water flow, thus enhancing the reliability of interception.

[0034] Example 3: Based on the above embodiment 1, in order to improve the performance of the mounting shell 3, the mounting shell 3 will be made of the following materials.

[0035] See Figures 1-5 The mounting shell 3 is made of aluminum alloy, and the model can be 7075 aluminum alloy. The surface of the mounting shell 3 is treated with anti-corrosion treatment such as anodizing, electroplating or painting to improve the corrosion resistance of the mounting shell 3, thereby extending the service life of the mounting shell 3.

[0036] The working principle of this utility model is as follows: First, before use, the underwater propulsion propeller is installed and the power is connected. When the underwater propulsion propeller is working, the servo motor 14 is started. The power output of the servo motor 14 is transmitted to the drive shaft 5 after being reduced and increased in torque by the reducer 4. The drive shaft drives the propeller 7 to rotate at high speed. The propeller pushes the water flow backward and generates a reaction force according to Newton's third law, which drives the underwater equipment forward. During normal operation, the electric push rod 13 is in the extended state, the movable ring 12 is fixed in position, and the stop rod 10 is in a closed state supported by the rotating plate 11, forming a ring-shaped protective net to intercept plastic bags, aquatic plants and other debris in the water; the barb 16 on the stop rod further prevents debris from falling out of the gap. When it is necessary to reduce resistance in a debris-free environment, the external control system activates the electric push rod 13. The piston rod retracts, causing the movable ring 12 to slide along the outer shell 1. The rotating plate 11 pushes the baffle 10 to rotate around the first pin 9 to open, thereby realizing the opening and closing adjustment of the protective structure. This ensures that the baffle 10 does not block the inlet and outlet, thus reducing resistance.

[0037] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A propeller capable of propelling itself in water flow, comprising a housing (1), characterized in that: The outer shell (1) is equipped with a connecting frame (2), a bearing seat (6) is installed on the connecting frame (2), and a drive shaft (5) is connected to the bearing seat (6) through a sealed bearing. A propeller (7) is installed at one end of the drive shaft (5). A movable ring (12) is fitted on the outer wall of the outer shell (1). Electric push rods (13) are installed at the top and bottom of the outer shell (1), and the output end of the electric push rod (13) is fixedly connected to the movable ring (12) through a piston rod. A number of vertical plates (8) are also fixed on the outer wall of the outer shell (1), and a stop rod (10) is connected to the vertical plate (8) through a first pin (9). A rotating plate (11) is rotatably connected between the stop rod (10) and the movable ring (12) through a second pin (15).

2. A propeller capable of propelling water flow according to claim 1, characterized in that: A mounting shell (3) is installed on one side of the connecting frame (2). A servo motor (14) and a reducer (4) are installed inside the mounting shell (3). The output shaft of the servo motor (14) is connected to the input shaft of the reducer (4). The output shaft of the reducer (4) is fixedly connected to the drive shaft (5).

3. A propeller capable of propelling water flow according to claim 1, characterized in that: The movable ring (12) is slidably connected to the outer shell (1).

4. A propeller capable of propelling water flow according to claim 1, characterized in that: Multiple baffles (10) are arranged in a ring array on the outer shell (1), and the baffles (10) are made of 316 stainless steel.

5. A propeller capable of driving in water flow according to claim 1, characterized in that: Multiple barbs (16) are fixed on one side of the stop bar (10).

6. A propeller capable of propelling water flow according to claim 1, characterized in that: The stop bar (10) is rotatably connected to the vertical plate (8) via the first pin (9).

7. A propeller capable of propelling water flow according to claim 1, characterized in that: The propeller (7) is located inside the outer casing (1) and is made of 316 stainless steel.

8. A propeller capable of propelling water flow according to claim 2, characterized in that: The mounting shell (3) is made of aluminum alloy and the surface of the mounting shell (3) is treated with anti-corrosion.

9. A propeller capable of driving in water flow according to claim 2, characterized in that: The servo motor (14) and electric push rod (13) are both electrically connected to the external control system.

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