Driving type synthetic jet underwater propeller
By introducing a multi-layered protection mechanism into the driven synthetic jet underwater thruster, including lateral buffer, longitudinal buffer, angle adjustment and impurity scraping, the problem of easy damage to the thruster is solved, and efficient and stable operation in complex underwater environments is achieved.
Patent Information
- Application Number
- CN202521272758.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-20
- Publication Date
- 2026-04-24
- Estimated Expiration
- 2035-06-20
AI Technical Summary
Existing driven synthetic jet underwater propulsion systems lack effective protection mechanisms, making critical components susceptible to damage, affecting operational efficiency and service life, and potentially leading to safety accidents.
A multi-layered protective structure was designed, including lateral buffering, longitudinal buffering, angle adjustment, impurity scraping, and a surrounding protection mechanism. It absorbs impact energy, scrapes away impurities, adjusts the tilt angle, buffers external impacts, prevents blockage, and improves the thruster's protective capabilities through springs and dampers.
It effectively protects the thruster from damage by underwater obstacles and debris, improves the reliability and service life of the thruster, and ensures efficient and stable operation in complex underwater environments.
Smart Images
Figure CN224159414U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of propulsion technology, and in particular to a driven synthetic jet underwater propulsion device. Background Technology
[0002] Driven synthetic jet underwater propulsion systems, with their unique propulsion principle and performance characteristics, have been widely used in underwater vehicles, underwater operational equipment, and other fields. However, existing driven synthetic jet underwater propulsion systems generally suffer from a significant problem: the lack of an effective protective mechanism. In the underwater environment, propulsion systems may encounter various obstacles, debris, and water flow impacts. Without a protective mechanism, critical components such as the drive unit and jet channel are easily damaged. This not only affects the normal operation of the propulsion system, reducing its efficiency and service life, but may also lead to malfunctions of the entire underwater equipment and even safety accidents. Therefore, designing a protective mechanism that can effectively protect the propulsion system is of great significance for improving the reliability and practicality of driven synthetic jet underwater propulsion systems. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a driven synthetic jet underwater propulsion device.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A driven synthetic jet underwater propulsion device includes a power unit, a propulsion module at one end of the power unit, multiple device rods fixedly connected between the propulsion module and the power unit, connecting plates on both outer walls of the propulsion module, a lateral buffer mechanism between the connecting plates and the propulsion module, a protective plate on the other side of the connecting plates, multiple filter holes on the outer wall of the protective plate, a longitudinal buffer mechanism between the protective plate and the connecting plates, a surrounding protective mechanism on the outer wall of the power unit, an impurity scraping mechanism on the outer wall of the protective plate, and an angle adjustment mechanism between the protective plate and the propulsion module.
[0006] Preferably, the lateral buffer mechanism includes a second spring and a second damper. Movable slots are provided on both sides of the outer wall of the propulsion module. A movable block is slidably connected to the inner wall of the movable slot. The two ends of the second spring and the second damper are fixedly connected to the movable block and the movable slot, respectively. The movable block and the connecting plate are rotatably connected.
[0007] Preferably, the longitudinal buffer mechanism includes a third spring and a third damper, a connecting block is fixedly connected to the outer wall of the protective plate, and the third spring and the third damper are fixedly connected to the connecting plate and the connecting block on both sides respectively.
[0008] Preferably, the angle adjustment mechanism includes a movable block and an electric push rod. A fixed plate is fixedly connected to the inner wall of the protective plate, and a movable groove is opened on the outer wall of the fixed plate. The movable block and the movable groove are slidably connected. One end of the electric push rod is fixedly connected to the movable block, and the other end of the electric push rod is fixedly connected to the propulsion module.
[0009] Preferably, the surrounding protection mechanism includes a protective cover and a mounting plate, the mounting plate is fixedly connected to the power equipment, the protective cover is located on the outer wall of the power equipment, and a plurality of first springs and first dampers are fixedly connected between the mounting plate and the protective cover.
[0010] Preferably, the impurity scraping mechanism includes a scraper and an adjusting block. Vertical grooves are provided on both sides of the outer wall of the protective plate. The adjusting block and the vertical grooves are slidably connected. The scraper and the adjusting block are fixedly connected. A limit bolt is threadedly connected to the outer wall of the adjusting block.
[0011] Preferably, connecting rods are fixedly connected to both outer walls of the protective plate, and a spoiler is fixedly connected to the other end of the connecting rod. The spoiler is set in an arc shape.
[0012] The beneficial effects of this utility model are as follows:
[0013] The second spring and second damper of the lateral buffer mechanism can absorb the impact energy of the thruster in the lateral direction. When an underwater obstacle hits the protective plate, the moving block slides in the moving groove. In combination with the elastic deformation of the second spring and the damping effect of the second damper, the impact force is reduced. The third spring and third damper of the longitudinal buffer mechanism buffer the longitudinal impact, so that the protective plate can float in the longitudinal direction, effectively protecting the propulsion module from damage caused by underwater debris.
[0014] The angle adjustment mechanism pushes the movable block to slide in the movable groove via an electric push rod, which allows the protective plate to adjust its tilt angle relative to the propulsion module to adapt to the propulsion needs under different water flow environments. The scraper of the impurity scraping mechanism can adjust its height along the vertical groove. After being fixed by the limit bolt, it scrapes away water plants, silt and other impurities attached to the surface of the protective plate as it moves with the propulsion unit. It also works with the filter holes to prevent clogging, improve propulsion efficiency and avoid thrust attenuation caused by impurity accumulation. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the main structure of a drive-type synthetic jet underwater propulsion device proposed in this utility model;
[0016] Figure 2 This is a schematic diagram of the rear main structure of a drive-type synthetic jet underwater propulsion device proposed in this utility model;
[0017] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;
[0018] Figure 4This is a side view of the main structure of a driven synthetic jet underwater propulsion device proposed in this utility model.
[0019] In the diagram: 1 Power equipment, 2 Equipment rod, 3 Propulsion module, 4 Protective plate, 5 Connecting rod, 6 Spoiler, 7 First damper, 8 First spring, 9 Mounting plate, 10 Protective cover, 11 Movable block, 12 Fixed plate, 13 Movable groove, 14 Electric push rod, 15 Second spring, 16 Second damper, 17 Third spring, 18 Filter hole, 19 Connecting block, 20 Third damper, 21 Connecting plate, 22 Moving block, 23 Moving groove, 24 Scraper, 25 Vertical groove, 26 Adjusting block, 27 Limit bolt. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0021] Reference Figure 1-4 A driven synthetic jet underwater propulsion device includes a power unit 1, a propulsion module 3 at one end of the power unit 1, multiple device rods 2 fixedly connected between the propulsion module 3 and the power unit 1, connecting plates 21 on both outer walls of the propulsion module 3, a transverse buffer mechanism between the connecting plates 21 and the propulsion module 3, a protective plate 4 on the other side of the connecting plates 21, multiple filter holes 18 on the outer wall of the protective plate 4, a longitudinal buffer mechanism between the protective plate 4 and the connecting plates 21, a surrounding protective mechanism on the outer wall of the power unit 1, and a debris-proof mechanism on the outer wall of the protective plate 4. The scraping mechanism and the angle adjustment mechanism are provided between the protective plate 4 and the propulsion module 3. The second spring 15 and the second damper 16 of the lateral buffer mechanism can absorb the impact energy of the propulsion in the lateral direction. When the underwater obstacle hits the protective plate 4, the moving block 22 slides in the moving groove 23. The elastic deformation of the second spring 15 and the damping effect of the second damper 16 reduce the impact force. The third spring 17 and the third damper 20 of the longitudinal buffer mechanism buffer the longitudinal impact, so that the protective plate 4 can float in the longitudinal direction, effectively protecting the propulsion module 3 from damage caused by underwater debris.
[0022] In this utility model, the lateral buffer mechanism includes a second spring 15 and a second damper 16. The outer walls of the propulsion module 3 are provided with moving slots 23 on both sides. The inner walls of the moving slots 23 are slidably connected to moving blocks 22. The two ends of the second spring 15 and the second damper 16 are fixedly connected to the moving blocks 22 and the moving slots 23 respectively. The moving blocks 22 and the connecting plate 21 are rotatably connected. The second spring 15 and the second damper 16 of the lateral buffer mechanism can absorb the impact energy received laterally by the propulsion.
[0023] The longitudinal buffer mechanism includes a third spring 17 and a third damper 20. A connecting block 19 is fixedly connected to the outer wall of the protective plate 4. The third spring 17 and the third damper 20 are fixedly connected to the connecting plate 21 and the connecting block 19 on both sides respectively. The third spring 17 and the third damper 20 of the longitudinal buffer mechanism buffer longitudinal impacts.
[0024] The angle adjustment mechanism includes a movable block 11 and an electric push rod 14. A fixed plate 12 is fixedly connected to the inner wall of the protective plate 4. A movable groove 13 is opened on the outer wall of the fixed plate 12. The movable block 11 and the movable groove 13 are slidably connected. One end of the electric push rod 14 is fixedly connected to the movable block 11, and the other end of the electric push rod 14 is fixedly connected to the propulsion module 3. The angle adjustment mechanism pushes the movable block 11 to slide in the movable groove 13 through the electric push rod 14, so that the protective plate 4 can adjust the tilt angle relative to the propulsion module 3 to adapt to the propulsion needs under different water flow environments.
[0025] The surrounding protection mechanism includes a protective cover 10 and a mounting plate 9. The mounting plate 9 is fixedly connected to the power equipment 1. The protective cover 10 is located on the outer wall of the power equipment 1. A plurality of first springs 8 and first dampers 7 are fixedly connected between the mounting plate 9 and the protective cover 10. The protective cover 10 of the surrounding protection mechanism buffers the external impacts on the power equipment 1 through the first springs 8 and the first dampers 7.
[0026] The impurity scraping mechanism includes a scraper 24 and an adjusting block 26. Vertical grooves 25 are provided on both sides of the outer wall of the protective plate 4. The adjusting block 26 and the vertical grooves 25 are slidably connected. The scraper 24 and the adjusting block 26 are fixedly connected. The outer wall of the adjusting block 26 is threaded with a limit bolt 27. The scraper 24 of the impurity scraping mechanism can adjust its height along the vertical groove 25. After being fixed by the limit bolt 27, it scrapes away impurities such as water plants and silt attached to the surface of the protective plate 4 when it moves with the propeller. It works with the filter hole 18 to prevent clogging, improve propulsion efficiency, and avoid thrust attenuation caused by impurity accumulation.
[0027] Connecting rods 5 are fixedly connected to both outer walls of the protective plate 4. A baffle 6 is fixedly connected to the other end of the connecting rod 5. The baffle 6 is set in an arc shape. The baffle 6 reduces water flow resistance through the arc design, and finally realizes the efficient and stable operation of the propeller in complex underwater environment.
[0028] Working Principle: In the idle area of this device, all the aforementioned components, which refer to structural parts, are connected. The specific connection methods should refer to the working principle described below, where the components are connected in the order of operation. The detailed connection methods are well-known technologies in this field. The following mainly introduces the working principle and process, without further explanation. When using this device, the power unit 1 drives the propulsion module 3 through the equipment rod 2. The protective cover 10 surrounding the protective mechanism buffers the external impact on the power unit 1 through the first spring 8 and the first damper 7. When an underwater obstacle hits the protective plate 4, the second spring 15 and the second damper 16 of the transverse buffer mechanism push the moving block 22 to slide within the moving groove 23. The third spring 17 and the third damper 20 of the longitudinal buffer mechanism buffer the longitudinal displacement of the protective plate 4 through the connecting block 19, forming multi-dimensional protection. The electric push rod 14 of the angle adjustment mechanism adjusts the tilt angle of the protective plate 4 according to the water flow conditions to optimize the jet direction; the scraper 24 of the impurity scraping mechanism scrapes off impurities on the surface of the protective plate 4 as the propeller moves to prevent the filter holes 18 from clogging; the baffle 6 reduces water flow resistance through its arc design, ultimately achieving efficient and stable operation of the propeller in complex underwater environments.
[0029] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. A driven synthetic jet underwater propulsion device, comprising a power unit (1), wherein a propulsion module (3) is provided at one end of the power unit (1), and a plurality of device rods (2) are fixedly connected between the propulsion module (3) and the power unit (1), characterized in that, The propulsion module (3) has connecting plates (21) on both sides of its outer wall. A transverse buffer mechanism is provided between the connecting plate (21) and the propulsion module (3). A protective plate (4) is provided on the other side of the connecting plate (21). Multiple filter holes (18) are provided on the outer wall of the protective plate (4). A longitudinal buffer mechanism is provided between the protective plate (4) and the connecting plate (21). A surrounding protective mechanism is provided on the outer wall of the power equipment (1). An impurity scraping mechanism is provided on the outer wall of the protective plate (4). An angle adjustment mechanism is provided between the protective plate (4) and the propulsion module (3).
2. The driven synthetic jet underwater propulsion device according to claim 1, characterized in that, The lateral buffer mechanism includes a second spring (15) and a second damper (16). The outer walls of the propulsion module (3) are provided with moving slots (23) on both sides. The inner walls of the moving slots (23) are slidably connected to moving blocks (22). The two ends of the second spring (15) and the second damper (16) are fixedly connected to the moving blocks (22) and the moving slots (23) respectively. The moving blocks (22) and the connecting plate (21) are rotatably connected.
3. The driven synthetic jet underwater propulsion device according to claim 1, characterized in that, The longitudinal buffer mechanism includes a third spring (17) and a third damper (20). A connecting block (19) is fixedly connected to the outer wall of the protective plate (4). The third spring (17) and the third damper (20) are fixedly connected to the connecting plate (21) and the connecting block (19) on both sides respectively.
4. A driven synthetic jet underwater propulsion device according to claim 1, characterized in that, The angle adjustment mechanism includes a movable block (11) and an electric push rod (14). A fixed plate (12) is fixedly connected to the inner wall of the protective plate (4). A movable groove (13) is opened on the outer wall of the fixed plate (12). The movable block (11) and the movable groove (13) are slidably connected. One end of the electric push rod (14) is fixedly connected to the movable block (11), and the other end of the electric push rod (14) is fixedly connected to the propulsion module (3).
5. A driven synthetic jet underwater propulsion device according to claim 1, characterized in that, The surrounding protective mechanism includes a protective cover (10) and a mounting plate (9). The mounting plate (9) is fixedly connected to the power equipment (1). The protective cover (10) is located on the outer wall of the power equipment (1). A plurality of first springs (8) and first dampers (7) are fixedly connected between the mounting plate (9) and the protective cover (10).
6. A driven synthetic jet underwater propulsion device according to claim 1, characterized in that, The impurity scraping mechanism includes a scraper (24) and an adjusting block (26). Vertical grooves (25) are provided on both sides of the outer wall of the protective plate (4). The adjusting block (26) and the vertical grooves (25) are slidably connected. The scraper (24) and the adjusting block (26) are fixedly connected. The adjusting block (26) is threadedly connected to a limit bolt (27).
7. A driven synthetic jet underwater propulsion device according to claim 1, characterized in that, The protective plate (4) has connecting rods (5) fixedly connected to both outer walls, and a spoiler (6) fixedly connected to the other end of the connecting rod (5). The spoiler (6) is set in an arc shape.