Water jet propeller with steering structure

Abstract

The utility model provides a kind of water jet propeller with steering structure, including elbow pipe, straight pipe, helical blade and output shaft, the elbow pipe is communicated with straight pipe, the helical blade is arranged in straight pipe, and is fixed with motor shaft, output pipe is opened in the elbow pipe, the motor shaft is stretched out from output pipe, straight pipe front end is also provided with steering pipe one, steering pipe two and operating assembly, the operating assembly controls steering sleeve one and sleeve two respectively left and right swing and up and down swing, steering pipe one is used to control water flow left and right spray direction, steering pipe two is used to control water flow before and after spray direction, by setting steering pipe one and steering pipe two, cooperation operating assembly, the flexible adjustment to water flow left and right and before and after spray direction is realized, steering operation can be completed without relying on stern rudder, improve the steering efficiency and operating performance of small ship.

Description

Technical Field

[0001] This utility model relates to propulsion devices, and more particularly, to a water jet propulsion device with a steering structure. Background Technology

[0002] Currently, Chinese patent CN207241990U discloses a water jet propulsion device, including a water jet nozzle, a curved pipe, a propeller built into the curved pipe, a motor, and a water inlet. The free end of the curved pipe forms an outwardly flared water inlet, the pipe cross-section of which is parallel to the water surface. The pipe cross-section of the fixed end of the curved pipe is perpendicular to the water surface. The pipe diameter cross-section of the water jet nozzle is perpendicular to the water surface. The axis of the propeller built into the curved pipe is coaxial with the pipe diameter axis of the water jet nozzle. The motor drives the propeller to rotate.

[0003] The aforementioned patent still has shortcomings. The water jet propulsion system cannot flexibly adjust the direction of water flow, thus requiring the addition of a stern rudder in the overall design of the hull. The stern rudder is not well-suited for small vessels, and its steering efficiency and maneuverability are poor. Furthermore, it is prone to bottoming out when navigating in shallow water, affecting propulsion efficiency and safety. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a water jet propulsion device with a steering structure, which has a steering function.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a water jet propulsion device with a steering structure, including a curved pipe, a direct pipe, a helical blade, and an output shaft. The curved pipe is connected to the direct pipe. The helical blade is disposed inside the direct pipe and fixed to the motor shaft. An output pipe is provided on the curved pipe. The motor shaft extends out from the output pipe. A steering pipe I, a steering pipe II, and an operating component are also provided at the front end of the direct pipe. The operating component controls the steering pipe I and the steering pipe II to swing left and right and up and down, respectively. The steering pipe I is used to control the left and right spray direction of the water flow, and the steering pipe II is used to control the front and back spray direction of the water flow.

[0006] Preferably, the control component includes a push rod, a swing arm is hinged to the front end of the push rod, the other end of the swing arm is hinged to a steering tube, the steering tube is hinged to a DC tube, and the push rod moves back and forth to drive the steering tube to swing left and right relative to the DC tube.

[0007] Preferably, the control assembly further includes a push rod two, with a swing arm two hinged to the front end of the push rod two, the other end of the swing arm two hinged to the steering tube two, the steering tube two hinged to the DC tube, and the push rod two moving back and forth drives the steering tube two to swing up and down relative to the DC tube.

[0008] Preferably, the steering tube has a spherical arc surface 1 inside, and the front end of the DC tube has a spherical arc surface 2, with the spherical arc surface 1 and the spherical arc surface 2 cooperating.

[0009] Preferably, the second diverting pipe includes a pipe body, which is provided with an inlet, an outlet one, and an outlet two, which are symmetrically arranged.

[0010] Preferably, a flow-dividing surface is also formed on the pipe body, and the flow-dividing surface is located at the water inlet.

[0011] Preferably, a self-lubricating sleeve is provided between the output shaft and the output tube, and a positioning bracket is provided inside the DC tube, through which the output shaft passes.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. By setting up steering pipe one and steering pipe two, in conjunction with the control components, the left and right and forward and backward spraying directions of the water flow can be flexibly adjusted, and the steering operation can be completed without relying on the stern rudder, thus improving the steering efficiency and maneuverability of small vessels. 2. The first diverter pipe and the direct current pipe are fitted with a spherical arc surface to prevent water from flowing out between the first diverter pipe and the direct current pipe. By setting a flow divider, the water flow resistance is reduced, and the water is smoothly sprayed out from the first outlet and the second outlet, reducing resistance and improving propulsion efficiency. 3. The self-lubricating sleeve reduces friction between the output shaft and the output tube, extending the service life of the equipment; at the same time, the positioning bracket ensures the stable operation of the output shaft, further improving the reliability and safety of the equipment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of an embodiment; Figure 2 This is a partial schematic diagram of an embodiment; Figure 3 This is a top view of an embodiment; Figure 4 for Figure 3 AA section view; Figure 5 This is a schematic diagram of the second steering tube.

[0014] Reference numerals: 1. Bend pipe; 2. Straight pipe; 3. Spiral blade; 4. Output shaft; 5. Output pipe; 6. Diverting pipe one; 7. Diverting pipe two; 8. Control assembly; 9. Push rod one; 10. Push rod two; 11. Swing rod one; 12. Swing rod two; 13. Spherical arc surface one; 14. Spherical arc surface two; 15. Main body; 16. Inlet; 17. Outlet one; 18. Outlet two; 19. Diverting surface; 20. Self-lubricating sleeve; 21. Positioning bracket. Detailed Implementation

[0015] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, so that the technical solution of this utility model can be more easily understood and mastered.

[0016] A water jet propulsion device with a steering structure includes a bend pipe 1, a straight pipe 2, a helical blade 3, and an output shaft 4. The bend pipe 1 is connected to the straight pipe 2. The helical blade 3 is disposed inside the straight pipe 2 and fixed to the motor shaft. An output pipe 5 is provided on the bend pipe 1, and the motor shaft extends out from the output pipe 5. The front end of the straight pipe 2 is also provided with a first steering pipe 6, a second steering pipe 7, and an operating component 8. The operating component 8 controls the first and second steering pipes to swing left and right and up and down, respectively. The first steering pipe 6 is used to control the left and right spray direction of the water flow, and the second steering pipe 7 is used to control the front and back spray direction of the water flow.

[0017] The control assembly 8 includes push rod 1 9 and push rod 2 10. Push rod 1 9 has a rocker arm 1 11 hinged to its front end. The other end of rocker arm 1 11 is hinged to steering tube 1 6. Steering tube 1 6 is hinged to DC tube 2. Push rod 1 9 moves back and forth to drive steering tube 1 6 to swing left and right relative to DC tube 2. Push rod 2 10 has a rocker arm 2 12 hinged to its front end. The other end of rocker arm 2 12 is hinged to steering tube 2 7. Steering tube 2 7 is hinged to DC tube 2. Push rod 2 10 moves back and forth to drive steering tube 2 7 to swing up and down relative to DC tube 2.

[0018] The inside of the diverting pipe 6 is provided with a spherical arc surface 1, and the front end of the direct pipe 2 is provided with a spherical arc surface 2. The spherical arc surface 1 and the spherical arc surface 2 cooperate with each other. The spherical arc surface 1 inside the diverting pipe 6 and the spherical arc surface 2 at the front end of the direct pipe 2 are tightly fitted. This design not only ensures the smooth flow of water, but also effectively prevents water from flowing out from the gap between the diverting pipe 6 and the direct pipe 2, thereby improving the utilization efficiency of the water flow.

[0019] The second diverter pipe 7 includes a pipe body 15, which is provided with an inlet 16, an outlet 17, and an outlet 18. The outlet 17 and outlet 18 are symmetrically arranged. A flow-dividing surface 19 is also formed on the pipe body 15, which is located at the inlet 16. This allows water to enter and exit the second diverter pipe 7 more smoothly, reducing water flow resistance and further improving propulsion efficiency. A self-lubricating sleeve 20 is also provided between the output shaft 4 and the output tube 5, and a positioning bracket 21 is also provided inside the DC tube 2, through which the output shaft 4 passes.

[0020] In practical applications, the working process of this water jet propulsion device is as follows: When the motor starts, the motor shaft drives the spiral blade 3 to rotate at high speed in the DC tube 2. The water flow enters the DC tube 2 from the bend pipe 1 and is accelerated by the spiral blade 3 before entering the steering pipe 6. At this time, the control component 8 begins to function. If it is necessary to change the left and right spray direction of the water flow, the push rod 9 moves back and forth, driving the swing rod 11 to move, thereby causing the steering pipe 6 to swing left and right relative to the DC tube 2, thus adjusting the left and right direction of the water flow. When the hull needs to move backward or brake, the push rod 20 moves back and forth, driving the swing rod 22 to move, causing the steering pipe 2 7 to block the front end of the steering pipe 6, thereby achieving the forward spray of water flow.

[0021] Of course, the above are just typical examples of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.

Claims

1. A water jet propulsion device with a steering structure, comprising a bend pipe (1), a direct current pipe (2), a helical blade (3), and an output shaft (4), wherein the bend pipe (1) is connected to the direct current pipe (2), the helical blade (3) is disposed inside the direct current pipe (2) and fixed to a motor shaft, and an output pipe (5) is provided on the bend pipe (1), and the motor shaft extends from the output pipe (5), characterized in that: The front end of the DC tube (2) is also provided with a first steering tube (6), a second steering tube (7) and an operating component (8). The operating component (8) controls the first steering tube and the second steering tube to swing left and right and up and down respectively. The first steering tube (6) is used to control the left and right spray direction of the water flow, and the second steering tube (7) is used to control the front and back spray direction of the water flow.

2. A waterjet propulsion device with a steering structure according to claim 1, characterized in that: The control component (8) includes a push rod (9), a swing arm (11) is hinged to the front end of the push rod (9), the other end of the swing arm (11) is hinged to the steering tube (6), the steering tube (6) is hinged to the DC tube (2), and the push rod (9) moves back and forth to drive the steering tube (6) to swing left and right relative to the DC tube (2).

3. A waterjet propulsion device with a steering structure according to claim 1, characterized in that: The control assembly (8) also includes a push rod two (10), the front end of the push rod two (10) is hinged to a swing rod two (12), the other end of the swing rod two (12) is hinged to a steering tube two (7), the steering tube two (7) is hinged to a DC tube (2), and the push rod two (10) moves back and forth to drive the steering tube two (7) to swing up and down relative to the DC tube (2).

4. A waterjet propulsion device with a steering structure according to claim 1, characterized in that: The steering tube (6) has a spherical arc surface 1 inside, and the DC tube (2) has a spherical arc surface 2 at the front end. The spherical arc surface 1 and the spherical arc surface 2 cooperate with each other.

5. A waterjet propulsion device with a steering structure according to claim 1, characterized in that: The second turning pipe (7) includes a pipe body (15), which is provided with an inlet (16), an outlet one (17) and an outlet two (18), which are symmetrically arranged.

6. A waterjet propulsion device with a steering structure according to claim 5, characterized in that: A flow divider surface (19) is also formed on the main body of the pipe (15), and the flow divider surface (19) is located at the inlet (16).

7. A waterjet propulsion device with a steering structure according to claim 1, characterized in that: A self-lubricating sleeve (20) is provided between the output shaft (4) and the output tube (5), and a positioning bracket (21) is provided inside the DC tube (2), through which the output shaft (4) passes.

Images