Underwater folding empennage driven by buoyancy

Abstract

The invention discloses an underwater folding empennage driven by buoyancy, and belongs to the technical field of underwater weapons, a first fixed wing and a second fixed wing are laminated, and a cavity is formed between the wing surfaces of the first fixed wing and the second fixed wing; the top end of the folding wing is rotatably clamped in the cavity; the track is fixedly mounted in the cavity, and an elastic locking piece and a stop block are arranged on the track; the sliding block is in sliding fit with the track; one end of the connecting rod is hinged with the folding wing through an upper pin shaft, and the other end is hinged with the slider through a lower pin shaft; when the underwater launching platform is used, buoyancy of the underwater launching platform is converted into driving force for unfolding the folding wings through the pull wires, the pull wires are snapped through the buoyancy after the folding wings are unfolded in place, a driving source does not need to be additionally arranged, and the underwater launching platform has the advantages that the folding structure is simple, space is saved, and the underwater launching platform is suitable for pipe barrel launching and long-time service under seawater.

Description

Technical Field

[0001] The invention belongs to the technical field of underwater weapons, and in particular relates to an underwater folding tail wing driven by buoyancy. Background Art

[0002] In order to ensure that the payload can be ejected smoothly from the underwater launch platform, the underwater launch platform needs to maintain its posture stability during the buoyancy process. In order to increase the buoyancy stability of the underwater launch platform, the launch platform needs to be equipped with a larger tail. However, when the tail of the underwater launch platform is currently designed as a fixed wing, it takes up a large space during transportation and deployment, and due to the protruding part of the tail, the existing underwater launch platform cannot be used for tube launch; in addition, the deployment of the existing folding tail requires an additional drive source, the drive structure is complex, and it occupies a large volume, which is not suitable for long-term service under sea water. Summary of the invention

[0003] In view of this, the present invention discloses an underwater folding tail wing driven by buoyancy, which does not require an additional driving source and has the advantages of saving space, a simple folding structure, and being suitable for tube launching.

[0004] The present invention adopts the following technical solutions:

[0005] An underwater folding tail driven by buoyancy, comprising:

[0006] The first fixed wing and the second fixed wing are stacked, and a cavity is formed between the wing surfaces of the first fixed wing and the second fixed wing;

[0007] The top end of the folding wing is rotatably clamped in the chamber;

[0008] The track is fixedly installed in the chamber, and elastic locking parts and stoppers are provided on the track;

[0009] The slider is slidably matched with the track;

[0010] One end of the connecting rod is hinged to the folding wing through an upper pin shaft, and the other end of the connecting rod is hinged to the slider through a lower pin shaft;

[0011] When in use, the wing roots of the first fixed wing and the second fixed wing are fixedly connected to the tail of the underwater launching platform, the slider is connected to one end of the traction line, and the other end of the traction line is connected to the ballast anchor after passing through the chamber. The ballast anchor is thrown away before the underwater launching platform floats up, and the underwater folding tail wing floats up with the underwater launching platform. The traction line is tightened and drives the slider to move along the track. During the movement of the slider, the connecting rod rotates around the upper pin shaft, and then the folding wing rotates around the rotating shaft and rotates and unfolds from the chamber. The slider presses down the elastic locking piece when it moves. When the slider slides to one end and collides with the stopper, the downward pressure on the elastic locking piece is released, so that the elastic locking piece bounces up from the track under the elastic action and abuts against the other end of the slider. The slider is limited between the elastic locking piece and the stopper. Under the buoyancy of the underwater launching platform, the tension on the traction line exceeds the tensile limit and breaks, and the underwater platform continues to float to the water surface.

[0012] Further, the elastic locking member includes a locking block and a compression spring;

[0013] The compression spring is accommodated in a groove provided in the track;

[0014] The bottom of the locking block is connected to the upper end of the compression spring. When the locking block is pressed down by the slider, the locking block enters the groove. When one end of the slider collides with the stopper to release the downward pressure on the locking block, the locking block pops up from the groove of the track under the elastic action of the compression spring and abuts against the other end of the slider.

[0015] Furthermore, a slope is provided on a side of the upper end of the locking block away from the stopper, so that when the slider moves along the track and hits the locking block, the slider can pass through the locking block without being blocked by the locking block.

[0016] Furthermore, a stepped structure is provided at the bottom of the locking block and the top of the groove to prevent the locking block from popping out of the groove.

[0017] Furthermore, a plurality of clamping wheel assemblies are symmetrically arranged on the wing surfaces of the first fixed wing and the second fixed wing, for clamping the unfolded folding wing to improve the stability of the position of the folding wing after unfolding.

[0018] Further, the clamping wheel assembly includes a wheel frame, a roller and a wheel axle;

[0019] The roller is rotatably connected to one end of the wheel frame through the wheel shaft, and the other end of the wheel frame is fixedly mounted on the first fixed wing and the second fixed wing through screws.

[0020] Furthermore, the central axis of the wheel axle is perpendicular to the rotation direction of the folding wing.

[0021] Furthermore, the outer surface of the roller is coated with elastic rubber material.

[0022] Beneficial effects:

[0023] 1. The underwater folding tail wing driven by buoyancy provided by the present invention converts the buoyancy of the underwater launch platform into the driving force for unfolding the folding wing with the help of a traction line. When the folding wing is unfolded into place, the buoyancy is used to break the traction line, and no additional driving source is required. It has the advantages of simple folding structure, space saving, suitability for tube launching and long-term service under sea water.

[0024] 2. After the folding wing is unfolded, the slider fixing assembly fixes the slider between the locking block and the stop block to ensure the stable position of the folding wing after unfolding.

[0025] 3. A plurality of clamping wheel assemblies are symmetrically arranged on the wing surfaces of the first fixed wing and the second fixed wing, so as to clamp the unfolded folding wings to prevent the folding wings from shaking after unfolding.

[0026] 4. The central axis of the wheel shaft is perpendicular to the rotation direction of the folding wing, so that the rotation direction of the roller at the pressing point is the same as the rotation direction of the folding wing, reducing the relative friction between the roller and the folding wing, thereby reducing the obstruction to the unfolding process of the folding wing.

[0027] 5. The outer surface of the roller is covered with an elastic rubber material, which can further improve the clamping effect of the roller on the unfolded folding wings.

[0028] 6. A tail plate can also be provided at the tail end of the chamber to close the tail end of the chamber and reduce the buoyancy resistance of the underwater launch platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of a connecting rod state of an underwater folding tail driven by buoyancy provided by the present invention in an unfolded state, wherein the left figure is an enlarged schematic diagram of point A in the right figure;

[0030] Figure 2 A schematic diagram of a connecting rod state of an underwater folding tail driven by buoyancy provided by the present invention in a folded state, wherein the left figure is an enlarged schematic diagram of point A in the right figure;

[0031] Figure 3 A schematic diagram of the structure in which the folding wing provided by the present invention is rotatably clamped in the chambers of the first fixed wing and the second fixed wing through a rotating shaft, wherein the right figure is an enlarged schematic diagram of the B in the left figure;

[0032] Figure 4 A schematic diagram of the connecting rod installation structure provided by the present invention;

[0033] Figure 5 A schematic diagram of the installation structure of the clamping wheel assembly provided by the present invention;

[0034] Figure 6It is a schematic diagram of the installation structure of the slider fixing assembly provided by the present invention, wherein the lower figure is an enlarged schematic diagram of point B in the upper figure;

[0035] Figure 7 A schematic diagram of a three-dimensional structure of an underwater folding tail wing driven by buoyancy in an unfolded state provided by the present invention;

[0036] Figure 8 A schematic diagram of the internal structure of an underwater folding tail chamber driven by buoyancy provided by the present invention;

[0037] Fig. 9 for Figure 8 The enlarged schematic diagram at C in the middle;

[0038] in:

[0039] 1-first fixed wing, 2-second fixed wing, 3-folding wing, 4-connecting rod hinge assembly, 41-upper pin, 42-connecting rod, 43-lower pin, 44-slider, 45-traction line, 5-clamping wheel assembly, 51-wheel frame, 52-first screw, 53-roller, 54-axle, 6-slider fixing assembly, 61-locking block, 62-second screw, 63-compression spring, 64-track, 65-third screw, 66-stopper, 67-base, 68-wing root, 69-tail plate, 70-through hole, 71-rotating shaft, 72-inclined surface, 73-step structure. DETAILED DESCRIPTION

[0040] In order to make the purpose, content and advantages of the present invention more clear, the specific implementation methods of the present invention are further described in detail below in conjunction with the drawings and examples.

[0041] Reference Figure 1-Figure 9 , an underwater folding tail driven by buoyancy, comprising a first fixed wing 1 and a second fixed wing 2, the first fixed wing 1 and the second fixed wing 2 are stacked, and a chamber is formed between the wing surfaces of the first fixed wing 1 and the second fixed wing 2; the top end of the folding wing 3 is rotatably clamped in the chamber through a rotating shaft 71; a track 64 is fixedly installed in the chamber, and an elastic locking member and a stopper 66 fixedly installed by a third screw 65 are provided on the track 64; a slider 44 is slidably matched with the track 64; a connecting rod hinge assembly 4 composed of an upper pin shaft 41, a connecting rod 42, and a lower pin shaft 43 is provided in the chamber, wherein one end of the connecting rod 42 is hinged to the folding wing 3 through the upper pin shaft 41, and the other end of the connecting rod 42 is hinged to the slider 44 through the lower pin shaft 43.

[0042] When in use, the wing roots 68 of the first fixed wing 1 and the second fixed wing 2 are fixedly connected to the tail of the underwater launching platform, the slider 44 is connected to one end of the traction line 45, and the other end of the traction line 45 is connected to the ballast anchor after passing through the chamber. The ballast anchor is thrown away before the underwater launching platform floats up, and the underwater folding tail wing floats up with the underwater launching platform. The traction line 45 is tightened and drives the slider 44 to move along the track 64. During the movement of the slider 44, the connecting rod 42 rotates around the upper pin shaft 41, thereby causing the folding wing 3 to rotate. The rotating shaft 71 rotates and rotates and unfolds from the chamber, and the slider 44 presses down the elastic locking piece when it moves. When the slider 44 slides to one end and collides with the stopper 66, the downward pressure on the elastic locking piece is released, so that the elastic locking piece bounces up from the track 64 under the elastic action and abuts against the other end of the slider 44. The slider 44 is limited between the elastic locking piece and the stopper 66. Under the buoyancy of the underwater launching platform, the tension on the traction line 45 exceeds the tensile limit and breaks, and the underwater platform continues to float to the water surface.

[0043] In this way, the underwater folding tail wing driven by buoyancy converts the buoyancy of the underwater launching platform into the driving force for unfolding the folding wing 3 with the help of the traction line 45. When the folding wing 3 is unfolded into place, the buoyancy is used to break the traction line 45. There is no need to set up an additional driving source. It has the advantages of simple folding structure, space saving, suitability for tube launching and long-term service under sea water.

[0044] As an example, the elastic locking member includes a locking block 61 and a compression spring 63, and the compression spring 63 is accommodated in a groove provided in the track 64; the bottom of the locking block 61 is connected to the upper end of the compression spring 63 by a second screw 62, and when the locking block 61 is pressed down by the slider 44, the locking block 61 enters the groove, and when one end of the slider 44 collides with the stopper 66 to release the downward pressure on the locking block 61, the locking block 61 is elastically acted upon by the compression spring 63 and pops up from the groove of the track 64 and abuts against the other end of the slider 44. In addition, a slope 72 may be provided on the side of the upper end of the locking block 61 away from the stopper 66, so that when the slider 44 moves along the track 64 and collides with the locking block 61, the slider 44 can pass through the locking block 61 more smoothly without being blocked by the locking block 61. Moreover, a step structure 73 may be provided at the bottom of the locking block 61 and the top of the groove to prevent the locking block 61 from popping out of the groove, thereby ensuring structural reliability. The locking block 61, the second screw 62, the compression spring 63, the track 64, the third screw 65, the stopper 66 and the base 67 constitute a slider fixing assembly 6. After the folding wing 3 is unfolded, the slider fixing assembly 6 fixes the slider 44 between the locking block 61 and the stopper 66 to ensure that the position of the folding wing 3 is stable after unfolding.

[0045] As an improvement, a plurality of clamping wheel assemblies 5 are symmetrically arranged on the wing surfaces of the first fixed wing 1 and the second fixed wing 2, which are used to clamp the unfolded folding wing 3 to prevent the folding wing 3 from shaking after being unfolded. Exemplarily, the clamping wheel assembly 5 may include a wheel frame 51, a roller 53 and a wheel axle 54, wherein the roller 53 is rotatably connected to one end of the wheel frame 51 through the wheel axle 54, and the other end of the wheel frame 51 is fixedly mounted on the first fixed wing 1 and the second fixed wing 2 through a first screw 52. Moreover, the central axis of the wheel axle 54 is perpendicular to the thickness direction of the folding wing 3, so that the rotation direction of the roller 53 at the pressing position is the same as the rotation direction of the folding wing 3, reducing the relative friction between the roller 53 and the folding wing 3, thereby reducing the obstruction of the unfolding process of the folding wing 3. In addition, the outer surface of the roller 53 may be coated with an elastic rubber material, which can further improve the clamping effect of the roller 53 on the unfolded folding wing 3.

[0046] As an example, a base 67 is provided between the wing surfaces of the first fixed wing 1 and the second fixed wing 2. The base 67 allows a spacing area to exist between the wing surfaces of the first fixed wing 1 and the second fixed wing 2, and the spacing area serves as a chamber. The base 67 can be integrally formed with the first fixed wing 1 or the second fixed wing 2, or can be a separate structure.

[0047] As an example, a tail plate 69 may be provided at the tail end of the chamber to close the tail end of the chamber and reduce the buoyancy resistance of the underwater launch platform. In addition, a through hole 70 is provided on the tail plate 69 for the traction line 45 to pass through the chamber. The tail plate 69 may be integrally formed with the first fixed wing 1 or the second fixed wing 2, or may be a separate structure. When the tail plate 69 is not provided at the tail end of the chamber, the traction line 45 may be directly led out from the tail end of the chamber and connected to the ballast anchor.

[0048] The above contents are further detailed descriptions of the present invention in combination with specific implementation methods, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. An underwater folding tail driven by buoyancy, characterized in that: include: The first fixed wing and the second fixed wing are stacked, and a cavity is formed between the wing surfaces of the first fixed wing and the second fixed wing; The top end of the folding wing is rotatably clamped in the chamber; The track is fixedly installed in the chamber, and elastic locking parts and stoppers are provided on the track; The slider is slidably matched with the track; One end of the connecting rod is hinged to the folding wing through an upper pin shaft, and the other end of the connecting rod is hinged to the slider through a lower pin shaft; When in use, the wing roots of the first fixed wing and the second fixed wing are fixedly connected to the tail of the underwater launching platform, the slider is connected to one end of the traction line, and the other end of the traction line is connected to the ballast anchor after passing through the chamber. The ballast anchor is thrown away before the underwater launching platform floats up, and the underwater folding tail wing floats up with the underwater launching platform. The traction line is tightened and drives the slider to move along the track. During the movement of the slider, the connecting rod rotates around the upper pin shaft, and then the folding wing rotates around the rotating shaft and rotates and unfolds from the chamber. The slider presses down the elastic locking piece when it moves. When the slider slides to one end and collides with the stopper, the downward pressure on the elastic locking piece is released, so that the elastic locking piece bounces up from the track under the elastic action and abuts against the other end of the slider. The slider is limited between the elastic locking piece and the stopper. Under the buoyancy of the underwater launching platform, the tension on the traction line exceeds the tensile limit and breaks, and the underwater platform continues to float to the water surface.

2. The underwater folding tail wing driven by buoyancy according to claim 1, characterized in that: The elastic locking member comprises a locking block and a compression spring; The compression spring is accommodated in a groove provided in the track; The bottom of the locking block is connected to the upper end of the compression spring. When the locking block is pressed down by the slider, the locking block enters the groove. When one end of the slider collides with the stopper to release the downward pressure on the locking block, the locking block pops up from the groove of the track under the elastic action of the compression spring and abuts against the other end of the slider.

3. The underwater folding tail wing driven by buoyancy according to claim 2, characterized in that: A slope is provided on one side of the upper end of the locking block away from the stopper, so that when the sliding block moves along the track and hits the locking block, the sliding block can pass through the locking block without being blocked by the locking block.

4. The underwater folding tail wing driven by buoyancy according to claim 3, characterized in that: A step structure is provided at the bottom of the locking block and the top of the groove to prevent the locking block from popping out of the groove.

5. The underwater folding tail fin driven by buoyancy according to any one of claims 1 to 4, characterized in that: A plurality of clamping wheel assemblies are symmetrically arranged on the wing surfaces of the first fixed wing and the second fixed wing, and are used to clamp the unfolded folding wings to improve the stability of the position of the folding wings after unfolding.

6. The underwater folding tail fin driven by buoyancy according to claim 5, characterized in that: The clamping wheel assembly comprises a wheel frame, a roller and a wheel axle; The roller is rotatably connected to one end of the wheel frame through the wheel shaft, and the other end of the wheel frame is fixedly mounted on the first fixed wing and the second fixed wing through screws.

7. The underwater folding tail fin driven by buoyancy according to claim 6, characterized in that: The central axis of the wheel shaft is perpendicular to the rotation direction of the folding wing.

8. The underwater folding tail fin driven by buoyancy according to claim 6, characterized in that: The outer surface of the roller is covered with elastic rubber material.

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