Zero-buoyancy unfolding mechanism

Abstract

The invention discloses a zero-buoyancy unfolding mechanism which comprises a chuck, a floating body, a water inlet self-sinking anchor, an anchor connecting piece, a limiting piece, a separation rope and an anchor rope. The floating body is fixedly connected with the load, provides positive buoyancy for the load and is fixedly connected with the chuck through the elastic piece, and the lower end of the floating body is fixedly connected with the anchor connecting piece. The elastic sheet is inserted into the load pin hole; the top of the water inlet self-sinking anchor is sealed through the anchor connecting piece and limited through the limiting piece. One end of the separating rope is fixed on the elastic sheet, and the other end is fixed on the limiting piece; one end of the anchor rope is fixed on the anchor connecting piece, and the other end is fixed on the water inlet self-sinking anchor; before the load is released, the interior of the water inlet self-sinking anchor is sealed and is in a zero-buoyancy state; when the load is released, the chuck moves upwards, the elastic piece is pulled out, the separation rope is separated, the limiting piece relieves limiting on the anchor connecting piece, the anchor connecting piece is separated from the top of the water inlet self-sinking anchor, water enters the water inlet self-sinking anchor and sinks automatically till the anchor rope is straightened, and unfolding is completed. Zero-buoyancy carrying of underwater anchor system loads can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of UUV equipment, and in particular to a zero-buoyancy deployment mechanism. Background Art

[0002] After the load is released underwater by the UUV, the anchor system needs to be deployed. However, before the load is released, since the gripping anchor structure is currently mainly used, there is a problem of large negative buoyancy when the platform is carried. The large negative buoyancy may affect the stability of the buoy, especially under the influence of environmental loads such as wind, waves and currents. The buoy may have a large motion response, affecting the normal operation of the carried load. Therefore, it is necessary to solve the problem of large negative buoyancy of the underwater anchor load when it is carried on the platform. Summary of the invention

[0003] In view of this, the present invention provides a zero-buoyancy deployment mechanism to achieve zero-buoyancy carrying of underwater anchor loads.

[0004] The technical solution adopted by the present invention is as follows:

[0005] A zero buoyancy deployment mechanism, comprising a chuck, a float, a water-intake self-sinking anchor, an anchor connector, a limiter, a release rope and an anchor rope;

[0006] The floating body is connected to the load to provide positive buoyancy for the load. The floating body is connected to the chuck through a spring sheet, and the lower end is connected to the anchor connector. The spring sheet is inserted into the load pin hole. The anchor connector seals the top of the water-intake self-sinking anchor and limits the position through the limiter. One end of the separation rope is fixed to the spring sheet, and the other end is fixed to the limiter. One end of the anchor rope is fixed to the anchor connector, and the other end is fixed to the water-intake self-sinking anchor.

[0007] Before the load is released, the inside of the water-filled self-sinking anchor is sealed and in a zero buoyancy state; when the load is released, the chuck moves upward, the spring piece is pulled out, the separation rope is disengaged, the limiter releases the limit on the anchor connector, the anchor connector is separated from the top of the water-filled self-sinking anchor, and the water-filled self-sinking anchor sinks by itself until the anchor rope is straightened and deployed.

[0008] Furthermore, the floating body includes an upper connecting piece and a floating material. The upper connecting piece is fixed to the top of the load by screws and provides an interface for connecting with an external platform release device; the floating material is fixed to the outer circumference of the load.

[0009] Furthermore, the water-intake self-sinking anchor comprises an anchor upper cover, an anchor cylinder, an anchor lower cover, a piston bayonet, a piston, a sealing ring and an anchor bayonet;

[0010] The piston is fixed to the anchor cover by a piston pin, and the two ends of the anchor cylinder are open. The anchor cover and the anchor lower cover respectively seal the two ends of the anchor cylinder and form a sealed cavity through a sealing ring; at the same time, the upper part of the anchor cover is sleeved with the anchor connector and fixed by the anchor pin; the anchor connector is located on the outer circumference of the piston; the anchor pin is limited by the limiter;

[0011] There are more than two piston pins and anchor pins, which are evenly distributed.

[0012] Furthermore, the position-limiting member is a lifting ring, which is sleeved on the upper part of the anchor cover and abuts against the anchor pin;

[0013] The water-intake self-sinking anchor also includes a limit column and a spring, and the number of the limit column and the spring is the same, which is more than two; one end of the limit column is fixed to the bottom surface of the anchor connector, and the other end passes through the lifting ring and is evenly distributed on the bottom surface of the anchor connector; the spring is sleeved on the limit column, and the two ends of the spring are respectively in contact with the bottom surface of the anchor connector and the upper surface of the lifting ring; before the load is released, under the action of the separation rope, the spring is in a compressed state.

[0014] Furthermore, the end of the anchor pin is conical, and a conical limiting groove is correspondingly provided on the outer periphery of the anchor connector;

[0015] The end of the piston pin is conical, and a conical limiting groove is correspondingly provided on the outer circumference of the piston.

[0016] Beneficial effects:

[0017] 1. Before the load is released, the interior of the water-filled self-sinking anchor is sealed and in a zero buoyancy state, which can realize zero buoyancy carrying of underwater anchor system load and meet the requirements for underwater load anchor system deployment; secondly, when the load is released, the present invention can fill water and sink itself to realize reliable deployment of the anchor system.

[0018] 2. The water-filled self-sinking anchor of the present invention utilizes water pressure to press a piston into the anchor cylinder to achieve water-filled self-sinking. The design is ingenious and the structure is simple and easy to implement.

[0019] 3. The end of the piston bayonet of the present invention is conical, and a conical limiting groove is correspondingly provided on the outer circumference of the piston, so that the piston bayonet can be easily separated from the piston under the action of water pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 Schematic diagram of the floating structure.

[0022] Figure 3 This is a schematic diagram of the water-intake self-sinking anchor structure.

[0023] Among them, 1-chuck, 2-floating body, 3-water-intake self-sinking anchor, 4-separation rope, 5-anchor rope, 6-spring, 7-upper connecting piece, 8-floating material, 9-anchor connecting piece, 10-limiting column, 11-spring, 12-lifting ring, 13-anchor pin, 14-piston pin, 15-piston, 16-anchor upper cover, 17-O-ring, 18-anchor cylinder, 19-anchor lower cover. DETAILED DESCRIPTION

[0024] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0025] The present invention provides a zero-buoyancy deployment mechanism, comprising a chuck 1, a floating body 2, a water-intake self-sinking anchor 3, an anchor connector 9, a limiter, a separation rope 4 and an anchor rope 5;

[0026] like Figure 1 As shown, the float 2 is fixedly connected to the load to provide positive buoyancy for the load. The float 2 is fixedly connected to the chuck 1 through the spring piece 6, and the lower end is fixedly connected to the anchor connector 9; the spring piece 6 is inserted into the load pin hole; the anchor connector 9 encapsulates the top of the water-intake self-sinking anchor 3 and limits it through a limiter; one end of the separation rope 4 is fixed to the spring piece 6, and the other end is fixed to the limiter, which is used to tighten the limiter before the load is released; one end of the anchor rope 5 is fixed to the anchor connector 9, and the other end is fixed to the water-intake self-sinking anchor 3.

[0027] Before the load is released, the interior of the water-filled self-sinking anchor 3 is sealed and in a zero buoyancy state; when the load is released, the chuck 1 moves upward, pulling out the spring piece 6, the separation rope 4 is disengaged, the limiting member releases the limit on the anchor connector 9, the anchor connector 9 is separated from the top of the water-filled self-sinking anchor 3, and the water-filled self-sinking anchor 3 is filled with water and sinks itself until the anchor rope 5 is straightened and deployed.

[0028] Specifically, Figure 2 As shown, the floating body 2 includes an upper connecting member 7 and a floating material 8. The upper connecting member 7 is fixed to the top of the load by screws, providing an interface for connecting with an external platform release device; the floating material 8 is fixed to the outer circumference of the load.

[0029] like Figure 3 As shown, the water-intake self-sinking anchor 3 includes an anchor upper cover 16 , an anchor cylinder 18 , an anchor lower cover 19 , a piston bayonet 14 , a piston 15 , a sealing ring, an anchor bayonet 13 , a limiting column 10 and a spring 11 .

[0030] The piston 15 is fixed to the anchor cover 16 by the piston pin 14. Both ends of the anchor cylinder 18 are open. The anchor cover 16 and the anchor lower cover 19 respectively close the two ends of the anchor cylinder 18 and form a sealed cavity through the sealing ring 17. At the same time, the upper part of the anchor cover 16 is sleeved with the anchor connector 9 and fixed by the anchor pin 13. The anchor connector 9 is located on the outer circumference of the piston 15. There are more than two piston pins 14 and anchor pins 13, which are evenly distributed.

[0031] The limiting member is a lifting ring 12, which is sleeved on the upper part of the anchor cover 16 and abuts against the anchor pin 13 to limit it; the number of limiting columns 10 and springs 11 is the same, both of which are more than two; one end of the limiting column 10 is fixed to the bottom surface of the anchor connector 9, and the other end passes through the lifting ring 12, which is used to limit the circumferential position of the lifting ring 12, and the limiting columns 10 are evenly distributed on the bottom surface of the anchor connector 9; the spring 11 is sleeved on the limiting column 10, and the two ends of the spring 11 are respectively abutted against the bottom surface of the anchor connector 9 and the upper surface of the lifting ring 12; before the load is released, under the action of the separation rope 4, the spring 11 is in a compressed state.

[0032] In this embodiment, three piston latch pins 14, anchor latch pins 13, position limiting posts 10 and springs 11 are used. The sealing ring is an O-ring 17.

[0033] Preferably, the end of the anchor pin 13 is conical, and a conical limiting groove is correspondingly provided on the outer periphery of the anchor connector 9.

[0034] The end of the piston pin 14 is conical, and a conical limiting groove is correspondingly provided on the outer periphery of the piston 15 .

[0035] The specific working process of this organization is as follows:

[0036] When loading, the buoy 2 is installed on the load, the spring piece 6 is inserted into the load pin hole and inserted into the separation rope 4; the separation rope 4 tightens the lifting ring 12, at this time the anchor pin 13 and the piston pin 14 limit the anchor cover 16 and the piston 15 respectively, the anchor cover 16 is not separated from the anchor connector 9, and the piston 15 is not opened; the upper connector 7 is connected to the external platform release device, and the upper end of the spring piece 6 is inserted into the chuck 1 to complete the loading.

[0037] When the load is released, the chuck 1 moves upward, the spring piece 6 is pulled out, the end of the separation rope 4 connected to the spring piece 6 is separated, the lifting ring 12 slides downward under the action of the spring 11, the anchor pin 13 is released from the limit, the anchor cover 16 is separated from the anchor connector 9, the piston 15 releases the limit of the piston pin 14 under the action of water pressure, slides into the anchor cylinder 18, and water enters the anchor cylinder 18 until the anchor rope 5 between the anchor cover 16 and the anchor connector 9 is straightened, and the anchor system is deployed. The length of the anchor rope 5 is determined according to the specified anchor system sinking height.

[0038] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A zero buoyancy deployment mechanism, characterized in that: It includes a chuck, a buoy, a water-intake self-sinking anchor, an anchor connector, a limiter, a release rope and an anchor rope; The floating body is connected to the load to provide positive buoyancy for the load. The floating body is connected to the chuck through a spring sheet, and the lower end is connected to the anchor connector. The spring sheet is inserted into the load pin hole. The anchor connector seals the top of the water-intake self-sinking anchor and limits the position through the limiter. One end of the separation rope is fixed to the spring sheet, and the other end is fixed to the limiter. One end of the anchor rope is fixed to the anchor connector, and the other end is fixed to the water-intake self-sinking anchor. Before the load is released, the inside of the water-filled self-sinking anchor is sealed and in a zero buoyancy state; when the load is released, the chuck moves upward, the spring piece is pulled out, the separation rope is disengaged, the limiter releases the limit on the anchor connector, the anchor connector is separated from the top of the water-filled self-sinking anchor, and the water-filled self-sinking anchor sinks by itself until the anchor rope is straightened and deployed.

2. The zero-buoyancy deployment mechanism according to claim 1, characterized in that: The floating body comprises an upper connecting piece and a floating material. The upper connecting piece is fixed to the top of the load by screws and provides an interface for connecting with an external platform release device. The floating material is fixed to the outer circumference of the load.

3. The zero buoyancy deployment mechanism according to claim 1, characterized in that: The water-intake self-sinking anchor comprises an anchor upper cover, an anchor cylinder, an anchor lower cover, a piston bayonet, a piston, a sealing ring and an anchor bayonet; The piston is fixed to the anchor cover by a piston pin, and the two ends of the anchor cylinder are open. The anchor cover and the anchor lower cover respectively seal the two ends of the anchor cylinder and form a sealed cavity through a sealing ring; at the same time, the upper part of the anchor cover is sleeved with the anchor connector and fixed by the anchor pin; the anchor connector is located on the outer circumference of the piston; the anchor pin is limited by the limiter; There are more than two piston pins and anchor pins, which are evenly distributed.

4. The zero-buoyancy deployment mechanism according to claim 3, characterized in that: The limiting member is a lifting ring, which is sleeved on the upper part of the anchor cover and abuts against the anchor pin; The water-intake self-sinking anchor also includes a limit column and a spring, and the number of the limit column and the spring is the same, which is more than two; one end of the limit column is fixed to the bottom surface of the anchor connector, and the other end passes through the lifting ring and is evenly distributed on the bottom surface of the anchor connector; the spring is sleeved on the limit column, and the two ends of the spring are respectively in contact with the bottom surface of the anchor connector and the upper surface of the lifting ring; before the load is released, under the action of the separation rope, the spring is in a compressed state.

5. The zero-buoyancy deployment mechanism according to claim 3 or 4, characterized in that: The end of the anchor pin is conical, and a conical limiting groove is correspondingly provided on the outer circumference of the anchor connector; The end of the piston pin is conical, and a conical limiting groove is correspondingly provided on the outer circumference of the piston.

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