Vortex generating device for promoting exhaust of underwater motion platform

Abstract

The invention discloses an underwater motion platform exhaust promoting vortex generating device which comprises a supporting assembly, a movable assembly and a protection assembly, the protection assembly comprises a balloon protection cover and a balloon puncture needle, one end of the balloon protection cover is connected with the supporting assembly, and the other end of the balloon protection cover is connected with the movable assembly; the movable assembly comprises an inner end connecting rod, an expansion balloon, an outer end connecting rod and an elastic connecting rod, the expansion balloon is placed in the balloon protection cover, the inner end connecting rod is fixed to one end of the balloon protection cover, the outer end connecting rod is fixed to the other end of the balloon protection cover and connected to the outer wall of the navigation body, and the two ends of the elastic connecting rod are fixedly connected into the balloon protection cover. The elastic connecting rod is driven to move through expansion of the expansion balloon, so that the outer end connecting rod is pushed to extend outwards, when the expansion balloon is expanded to make contact with the balloon puncture needle, the expansion balloon is punctured, the stretched elastic connecting rod retracts, the outer end connecting rod is driven to retract inwards to the initial state, and the smooth surface state of the navigation body is recovered.

Description

Technical Field

[0001] The invention relates to a vortex generating device, in particular to a vortex generating device for promoting exhaust of an underwater motion platform. Background Art

[0002] Submarine-launched vehicles are usually provided with an air storage cavity inside, and exhaust devices such as exhaust holes are opened on the shoulders. The gas pressure in the air storage cavity is equivalent to the ambient pressure of the vehicle when it is initially launched. During the vertical movement, as the water depth decreases, the gas is passively discharged under the pressure difference between the inside and outside of the cavity, forming an air layer that wraps the surface of the vehicle, thereby achieving the purpose of reducing load and drag. Although this exhaust method has a simple internal structure, since it only relies on the pressure difference to drive the gas discharge, the gas discharge momentum at the exhaust hole is relatively small, and it is easy to be eroded by the incoming flow, causing the exhaust hole to be blocked and the exhaust to be interrupted, thereby losing the purpose of reducing load and drag. Summary of the invention

[0003] Purpose of the invention: The purpose of the present invention is to propose a vortex generating device for promoting exhaust of an underwater motion platform, to achieve exhaust control during the vertical movement of the underwater vehicle, and to enhance the load and drag reduction effects.

[0004] Technical solution: The present invention includes a supporting component, a movable component and a protective component, wherein the protective component includes a balloon protective cover and a balloon puncture needle, wherein one end of the balloon protective cover is connected to the supporting component, and the other end is connected to the movable component, wherein the movable component includes an inner connecting rod, an inflatable balloon, an outer connecting rod and an elastic connecting rod, wherein the inflatable balloon is placed inside the balloon protective cover, an inner connecting rod is fixed at one end of the balloon protective cover, and an outer connecting rod is fixed at the other end, wherein the outer connecting rod is connected to the outer wall of the navigation body, and both ends of the elastic connecting rod are fixedly connected to the inside of the balloon protective cover, wherein the elastic connecting rod is driven to move by the expansion of the inflatable balloon, thereby pushing the outer connecting rod to extend outward, and when the inflated balloon expands to contact the balloon puncture needle, the inflated balloon is punctured, and the stretched elastic connecting rod retracts, thereby driving the outer connecting rod to retract inward to its initial state.

[0005] The outer end connecting rod is provided with a limit plate at one end connected to the outer wall of the navigating body, so as to prevent the outer end connecting rod from extending outward too long, and the limit plate can effectively prevent gas from leaking from the outer end connecting rod.

[0006] The outermost end of the outer connecting rod is flush with the outer wall of the vehicle body at the initial moment of the vehicle body's movement. During the vertical movement of the vehicle body, the pressure decreases, causing the balloon to expand, thereby stretching the elastic connecting rod and pushing the outer connecting rod to extend outward, thereby driving the outer connecting rod to extend toward the outer wall of the vehicle body, forming a vortex generating device protruding from the outer wall of the vehicle body.

[0007] The gas pressure inside the inflatable balloon is equal to the pressure of the water depth environment where the navigation body is located. As the navigation body moves vertically, the air cavity is exhausted outward through the exhaust hole, and the pressure inside the air cavity is reduced, causing the inflatable balloon to expand.

[0008] The support assembly comprises a support screw rod, a connecting piece is sleeved on the outer side of the support screw rod, and a circumferential array of the connecting piece has a plurality of quick-insert connectors to facilitate the connection of the inner end connecting rod.

[0009] The supporting screw rod is fixedly connected to the upper and lower ends of the air cavity of the navigation body.

[0010] The other end of the inner end connecting rod is connected to the quick-insertion connector, and is connected to the connecting piece through the quick-insertion connector.

[0011] The inflatable balloon is made of elastic rubber material and is filled with air or inert gas. The gas pressure inside the inflatable balloon is equivalent to the pressure of the water depth environment where the navigation body is located.

[0012] The limit plate is a rubber limit plate, and its position can be adjusted forward and backward along the outer connecting rod. The limit plate prevents the outer connecting rod from extending outward too long, and the limit plate can effectively prevent gas leakage from the outer connecting rod.

[0013] The vortex generating device is installed above the exhaust hole of the navigation body. At the same time, the number of rods can be conveniently adjusted according to the number of exhaust holes of the navigation body to meet the requirements of economy and timeliness.

[0014] Beneficial effects: The present invention has the following advantages:

[0015] (1) The vortex generating device of the present invention can induce gas discharge during the vertical movement of the navigation body, thereby increasing the momentum of gas discharge. Even if the gas is scoured by the incoming flow, it can still be discharged normally at a normal angle of attack, thereby effectively achieving the purpose of reducing the load and drag of the submarine-launched navigation body;

[0016] (2) The internal pressure of the inflatable balloon of the device is consistent with the initial water depth pressure of the navigation body. During the vertical movement of the navigation body, as the pressure decreases, the balloon expands, thereby driving the elastic connecting rod to extend outward without the need for additional power; the elastic connecting rod rebounds to its normal position after the inflated balloon is punctured, thereby driving the outer end connecting rod to be recovered, restoring the smooth surface state of the navigation body without the need for additional power;

[0017] (3) The device is installed inside the built-in air cavity of the underwater vehicle, does not occupy additional space inside the vehicle, is simple to manufacture, has a reliable structure, and has a low manufacturing cost. At the same time, the number of rods can be conveniently adjusted according to the number of exhaust holes of the vehicle, thereby meeting the requirements of economy and timeliness. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1The overall structure of the present invention is shown in FIG. Figure 1 ;

[0019] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 . DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] like Figure 1 and Figure 2 As shown, the vortex generating device for promoting exhaust of the underwater sports platform of the present invention is installed above the exhaust hole of the navigation body, including a support component 1, a movable component 2 and a protection component 3; the support component 1 includes a support screw 4, a connecting piece 5, and a quick-plug connector 6; the support screw 4 is fixedly connected to the upper and lower ends of the air cavity of the navigation body, and the connecting piece 5 is connected to the support screw 4 by a threaded connection, and the height position can be adjusted up and down; the connecting piece 5 has a plurality of quick-plug connectors 6 in a circumferential array, and the plurality of quick-plug connectors 6 are installed inside the connecting piece 5.

[0022] The protection component 3 includes a balloon protection cover 12 and a balloon puncture needle 13. One end of the balloon protection cover 12 is connected to the support component 1, and the other end is connected to the movable component 2. The movable component 2 includes an inner end connecting rod 7, an expansion balloon 8, an outer end connecting rod 9, a limit plate 10, and an elastic connecting rod 11. The expansion balloon 8 is made of elastic rubber and can be filled with air or inert gas. The expansion balloon 8 is placed inside the balloon protection cover 12. After reaching the limit position, the balloon continues to expand and punctures the balloon to prevent the balloon from being in a continuous expansion state. At the same time, the elastic connecting rod in the movable component is driven to rebound, thereby restoring the initial position. The balloon protective cover 12 is divided into two front and rear shell structures, one end of which is fixed with an inner connecting rod 7, and the other end of which is fixed with an outer connecting rod 9. The other end of the inner connecting rod 7 is connected to the quick connector 6, which is connected to the connector 5 through the quick connector 6. The outer connecting rod 9 is connected to the outer wall of the navigation body, and a limit plate 10 is installed at the end connected to the outer wall of the navigation body to prevent the outer connecting rod 9 from extending too long outward. At the same time, the limit plate 10 can effectively prevent gas from leaking from the outer connecting rod 9. The outermost end of the outer connecting rod 9 is flush with the outer wall of the navigation body at the initial moment of the movement of the navigation body. The limit plate 10 is a rubber limit plate, and its position can be adjusted forward and backward along the outer connecting rod 9. The two ends of the elastic connecting rod 11 are fixedly connected to the opposite sides of the front and rear shell structures of the balloon protective cover 12. The expansion of the inflatable balloon 8 drives the elastic connecting rod 11 to move, thereby pushing the outer connecting rod 9 to extend outward.

[0023] Such an arrangement can achieve that during the vertical movement of the navigation body, the pressure is reduced to expand the balloon, thereby stretching the elastic connecting rod, pushing the outer end connecting rod to extend outward, thereby driving the outer end connecting rod to extend toward the outer wall of the navigation body, forming a vortex generating device protruding from the outer wall of the navigation body. In the initial state of the balloon not being expanded, the elastic connecting rod 11 is in a normal state, the outer end connecting rod is flush with the outer wall of the navigation body, and the outer wall of the navigation body is in a smooth state.

[0024] The balloon puncture needle 13 is fixedly installed inside the balloon protection cover 12. When the inflatable balloon 8 expands to a certain extent, it contacts the balloon puncture needle 13 to puncture the inflatable balloon 8, thereby preventing the balloon from infinitely expanding and squeezing the limit plate 10. At this time, the stretched elastic connecting rod 11 retracts, driving the outer end connecting rod 9 to retract inward and return to the initial state, ensuring the smoothness of the outer wall of the navigation body.

[0025] During the test of the present invention, the inner connecting rod 7 and the part of the balloon protective cover 12 connected to the inner connecting rod 7 are always kept fixed. The gas pressure inside the inflated balloon 8 is equivalent to the pressure of the water depth environment where the navigation body is located. As the navigation body moves vertically, the air cavity is exhausted outward through the exhaust hole, and the pressure inside the air cavity is reduced, so that the inflated balloon 8 expands, driving the elastic connecting rod 11 to move, so that it pushes the connection part of the balloon protective cover 12 and the outer connecting rod 9 to extend outward, forming a vortex generator protruding from the outer wall of the navigation body, thereby achieving the effect of promoting the exhaust of the air cavity.

[0026] The working principle of the present invention is:

[0027] During the vertical movement of the navigation body, as the pressure of the external environment decreases, the volume of the inflated balloon in the protection component increases, pushing the movable component to extend toward the outer wall of the navigation body, forming a vortex generating device protruding from the outer wall of the navigation body. Through the protruding vortex generating device, a low-pressure area is formed on the back flow surface during the vertical movement of the navigation body, inducing the accelerated discharge of the gas in the air cavity, increasing the momentum of gas discharge, and avoiding the occurrence of exhaust interruption, thereby achieving the effect of improving load reduction and drag reduction. After the navigation body emerges from the water, as the pressure continues to decrease, the balloon is punctured by the balloon puncture needle after expanding to a certain extent, so that the elastic connecting rod drives the outer end connecting rod to be recovered, ensuring that the outer wall of the navigation body is smooth and reducing the travel resistance in the air. The present invention realizes the automatic extension and recovery functions through balloon expansion and elastic expansion and contraction, and is simple to manufacture, safe and reliable. Compared with traditional exhaust devices, the present invention improves the exhaust capacity and effectively improves the effect of load reduction and drag reduction.

Claims

1. A vortex generating device for promoting exhaust of an underwater motion platform, characterized in that: The utility model comprises a supporting component, a movable component and a protecting component, wherein the protecting component comprises a balloon protecting cover and a balloon puncture needle, wherein one end of the balloon protecting cover is connected to the supporting component, and the other end is connected to the movable component, wherein the movable component comprises an inner connecting rod, an inflatable balloon, an outer connecting rod and an elastic connecting rod, wherein the inflatable balloon is placed inside the balloon protecting cover, an inner connecting rod is fixed at one end of the balloon protecting cover, and an outer connecting rod is fixed at the other end, wherein the outer connecting rod is connected to the outer wall of the navigation body, and both ends of the elastic connecting rod are fixedly connected to the inside of the balloon protecting cover, and the elastic connecting rod is driven to move by the expansion of the inflatable balloon, thereby pushing the outer connecting rod to extend outward, and when the inflated balloon expands to contact with the balloon puncture needle, the inflated balloon is punctured, and the elastic connecting rod retracts, thereby driving the outer connecting rod to be recovered inward to the initial state.

2. A vortex generating device for promoting exhaust of an underwater sports platform according to claim 1, characterized in that: The outer end connecting rod is provided with a limiting plate at one end connected to the outer wall of the navigation body.

3. A vortex generating device for promoting exhaust of an underwater sports platform according to claim 2, characterized in that: The outermost end of the outer end connecting rod is flush with the outer wall surface of the vehicle body at the initial moment of the vehicle body's movement.

4. The vortex generating device for promoting exhaust of an underwater motion platform according to claim 1, characterized in that: The gas pressure inside the inflated balloon is equivalent to the pressure of the water depth environment where the navigation body is located.

5. The vortex generating device for promoting exhaust of an underwater sports platform according to claim 1, characterized in that: The support assembly comprises a support screw rod, a connecting piece is sleeved on the outer side of the support screw rod, and a circumferential array of the connecting piece has a plurality of quick-insert connectors.

6. A vortex generating device for promoting exhaust of an underwater sports platform according to claim 5, characterized in that: The supporting screw rod is fixedly connected to the upper and lower ends of the air cavity of the navigation body.

7. A vortex generating device for promoting exhaust of an underwater sports platform according to claim 6, characterized in that: The other end of the inner end connecting rod is connected to the quick-insert connector, and is connected to the connecting piece through the quick-insert connector.

8. The vortex generating device for promoting exhaust of an underwater sports platform according to claim 1, characterized in that: The expansion balloon is made of elastic rubber material and is filled with air or inert gas.

9. The vortex generating device for promoting exhaust of an underwater sports platform according to claim 2, characterized in that: The limiting piece is a rubber limiting piece, and its position can be adjusted forward and backward along the outer end connecting rod.

10. The vortex generating device for promoting exhaust of an underwater sports platform according to claim 1, characterized in that: The vortex generating device is installed above the exhaust hole of the navigation body.

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