CN116331452A

CN116331452A - Unfolding mechanism for underwater acoustic detection

Info

Publication number: CN116331452A
Application number: CN202310600942.2A
Authority: CN
Inventors: 武建国; 王昌强; 武天龙; 王伟; 仇景; 张敏革
Original assignee: Tianjin Hanhai Lanfan Marine Technology Co ltd
Current assignee: Tianjin Hanhai Lanfan Marine Technology Co ltd
Priority date: 2023-05-26
Filing date: 2023-05-26
Publication date: 2023-06-27
Anticipated expiration: 2043-05-26
Also published as: CN116331452B

Abstract

The invention provides an unfolding mechanism for underwater acoustic detection, which comprises a push rod module, a shell module and a link mechanism module, wherein an underwater push rod drives a driving slide block II to move, the driving slide block II drives a driving slide block I to move, the driving slide block I drives a driving rod to rotate around a rotating shaft II, the driving rod drives a telescopic rod to rotate around a rotating shaft III, and the telescopic rod drives a light rod to move. When in use, the device is driven by a motor to be unfolded into a multi-rod planar array, and the multi-rod planar array is used for omnibearing detection under water; when retrieving, the expansion mechanism can fold and withdraw, portable and accomodate. The invention has the characteristics of deep water pressure resistance, omnibearing underwater detection, low energy consumption, flexibility and convenience.

Description

Unfolding mechanism for underwater acoustic detection

Technical Field

The invention belongs to the technical field of underwater acoustic detection platforms, and particularly relates to a deployment mechanism for underwater acoustic detection.

Background

The underwater acoustic detection platform is generally suspended in water, an acoustic detection unit is arranged on the platform, and underwater targets are detected, positioned and communicated through passive receiving sound waves. The existing unfolding rod of the underwater acoustic detection device is generally designed to be fixed, and because of the larger diameter, the occupied space is larger, inconvenience is brought to transportation and collection, and the number of the fixed rods sometimes designed for alleviating the defects is slightly reduced, but the problem of fewer installation parts of the sonar detection unit is also brought.

The unfolding mechanism for underwater acoustic detection needs to consider the problem of convenience in transportation, recovery and storage, and the requirement that sonar detection units can be densely installed according to an array during unfolding is also met. Based on the above requirements, it is necessary to design a device which is small in volume after folding and capable of meeting the installation requirement of a large acoustic array after unfolding, and meanwhile, the requirements of simplifying an unfolding and folding mechanism and reliably running with low power consumption for a long time are met, the requirements of deep sea pressure resistance and long-time underwater corrosion resistance are met, and the technical requirements are the technical problems that the existing unfolding mechanism for underwater acoustic detection needs to be solved.

Disclosure of Invention

The invention provides a unfolding mechanism for underwater acoustic detection, which has unfolding and retracting functions, and when the unfolding mechanism is used, an underwater push rod is driven by a motor to move downwards, so that a link mechanism drives a planar array to unfold, and the underwater acoustic detection is carried out in all directions; when retrieving, the expansion mechanism can fold and withdraw, portable and accomodate. The invention has the characteristics of deep water pressure resistance, omnibearing underwater detection, low energy consumption, flexibility and convenience.

The utility model provides a deployment mechanism for acoustic detection under water, includes push rod module, casing module and link mechanism module, the casing module includes structural framework, the push rod module includes push rod and push rod mount table under water, the push rod is located structural framework's inner chamber, the push rod mount table set up in structural framework's inner chamber, the push rod mount table with structural framework fixed connection, push rod one end under water fixed mounting in push rod mount table upper surface, under water the push rod mount table with structural framework is located same axis, the push rod module drives link mechanism module realizes expanding and shrink.

According to the unfolding mechanism for underwater acoustic detection, the link mechanism module comprises a driving slide block II, a driving slide block I, a rotating shaft II, a driving rod, a rotating shaft III, a telescopic rod, a rotating shaft I and a light rod, wherein the other end of the underwater push rod is fixedly connected with the driving slide block II, detachable fixed connection is formed between the driving slide block I and the driving slide block II, the driving slide block I and the underwater push rod are positioned on the same axis, a rotatable connection is formed between the whole formed by the driving slide block I and the driving slide block II and one end of the driving rod around the rotating shaft II, the other end of the driving rod and one end of the telescopic rod around the rotating shaft III, the telescopic rod and the structural frame are rotatably connected around the rotating shaft I, the other end of the telescopic rod and the light rod are fixedly connected, the number of the light rods is multiple, and the telescopic rod and the light rod can penetrate through the space of the structural frame.

According to the unfolding mechanism for underwater acoustic detection, the shell module comprises a rectifying cap and a bottom head, the rectifying cap and the bottom head are arranged at two ends of the structural frame, the structural frame comprises a plurality of structural rods, the structural rods are mutually parallel, the structural rods are uniformly distributed to be cylindrical, the outer side surface of the push rod mounting table is fixedly connected with the inner side surfaces of the structural rods, the space is reserved between every two structural rods, each space corresponds to each light rod and each telescopic rod, the telescopic rods and the light rods can penetrate through the space, a plurality of first accommodating grooves are uniformly distributed on the circumference of the driving sliding block II, and semi-cylindrical grooves are symmetrically formed in the groove walls at two sides of each first accommodating groove; the circumference of the driving sliding block I is uniformly provided with a plurality of second accommodating grooves, semi-cylindrical grooves II are symmetrically formed on groove walls on two sides of each second accommodating groove, the semi-cylindrical grooves II of the driving sliding block I and the semi-cylindrical grooves I of the driving sliding block II form a cylindrical groove, a rotating shaft II is arranged in the cylindrical groove, the push rod module further comprises a limiting mounting table, the limiting mounting table is arranged in an inner cavity of the structural frame, a plurality of positioning modules are uniformly distributed on the upper limiting mounting end face of the limiting mounting table, each positioning module comprises two positioning blocks, each positioning block is provided with a cylindrical through hole, one rotating shaft I is arranged in the cylindrical through holes of each positioning module, and each telescopic rod is located between two positioning blocks.

According to the unfolding mechanism for underwater acoustic detection, the push rod mounting table is of a hollow cylindrical structure.

According to the unfolding mechanism for underwater acoustic detection, the limiting installation table is of a hollow cylindrical structure, the outer side face of the limiting installation table is fixedly connected with the inner side faces of the plurality of structural rods of the structural frame, the upper limiting installation end face of the limiting installation table and the upper push rod installation end face of the push rod installation table are perpendicular to the axis of the structural frame, a circular hole is formed in the middle of the limiting installation table, a first semicircular groove is formed in the periphery of the limiting installation table, a second semicircular groove is formed in the periphery of the push rod installation table, when the driving rod is in a vertical state, the driving rod is located in the circular hole formed in the middle of the limiting installation table, the telescopic rod is abutted to the upper surface of the limiting installation table, and when the light rod is in a vertical folding state, the light rod is exactly abutted to the inner side faces of the first semicircular groove of the limiting installation table and the second semicircular groove of the push rod installation table.

According to the unfolding mechanism for underwater acoustic detection, the upper end of the rectifying cap is provided with the circular ring structure.

According to the unfolding mechanism for underwater acoustic detection, the light rods are made of carbon fibers, and a plurality of sonar testing unit interfaces are arranged on each light rod at equal intervals.

According to the unfolding mechanism for underwater acoustic detection, the outer side face of the limiting installation table is uniformly provided with the plurality of positioning grooves, and the inner side face of each structural rod abuts against the positioning grooves.

According to the unfolding mechanism for underwater acoustic detection, the upper limit installation end face of the limit installation table is uniformly provided with a plurality of positioning groove groups, each positioning groove group comprises two positioning sink grooves, each positioning block is provided with a positioning surface, and the positioning surfaces are abutted in the corresponding positioning sink grooves.

According to the unfolding mechanism for underwater acoustic detection, the shell module comprises the transducer, the rectifying cap is of a hemispherical structure, the transducer is arranged at the upper end of the rectifying cap, the rectifying cap is fixedly connected with the transducer, the bottom sealing head is of a rotary shell structure, one end of the structural rod is fixedly connected with the rectifying cap, the other end of the structural rod is fixedly connected with the bottom sealing head, the link mechanism module comprises the locking hoop, the other end of the telescopic rod is fixedly connected with the light rod through the locking hoop, and the number of the structural rod, the first accommodating groove, the second accommodating groove, the light rod, the positioning module, the positioning groove and the positioning groove group is eight.

One or more technical solutions provided in the embodiments of the present invention at least have the following technical effects or advantages:

1. the upper end of the rectifying cap is provided with a circular ring structure, so that the arrangement stability can be improved, and the rectifying noise reduction effect can be achieved.

2. The unfolding mechanism is small in volume after being folded, and can meet the installation requirement of a large acoustic array after being unfolded, so that the acoustic array is convenient to transport, recycle and store. Meanwhile, the mechanism of the unfolding mechanism is simplified, and the unfolding mechanism can run with low power consumption for a long time.

3. The acoustic detection unit is arranged on the unfolding mechanism, and can detect, position and communicate an underwater target through passive receiving sound waves.

4. The underwater push rod of the unfolding mechanism is made of carbon fiber, so that the requirements of compression resistance, corrosion resistance and deep sea pressure resistance can be met.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings that are necessary for the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic view in longitudinal section of an embodiment of the present invention with a lightweight pole in a vertically collapsed condition.

Fig. 2 is an enlarged view at a in fig. 1 of an embodiment of the present invention.

Fig. 3 is a schematic view of an overall longitudinal section of a lightweight pole according to an embodiment of the present invention, in a state between a vertically collapsed state and a horizontal state.

Fig. 4 is an enlarged view at B in fig. 3 of an embodiment of the present invention.

Fig. 5 is an overall top view of a lightweight pole according to an embodiment of the present invention in a horizontal position.

Fig. 6 is a schematic view of an overall longitudinal section of a lightweight pole according to an embodiment of the invention in a horizontal position.

Fig. 7 is an enlarged view of fig. 6 at C in accordance with an embodiment of the present invention.

Fig. 8 is a front view of a rectifying cap according to an embodiment of the present invention.

Fig. 9 is a schematic view of an overall longitudinal section of a fairing cap according to an embodiment of the invention.

Fig. 10 is a top view of a rectifying cap according to an embodiment of the present invention.

Fig. 11 is a perspective view of a rectifying cap according to an embodiment of the present invention.

Fig. 12 is a top view of a driving slider ii according to an embodiment of the present invention.

Fig. 13 is a perspective view of a driving slider ii according to an embodiment of the present invention.

Fig. 14 is a schematic view of the entire longitudinal section of the driving slider ii according to the embodiment of the present invention.

Fig. 15 is a schematic view of the entire longitudinal section of the driving slider i according to the embodiment of the present invention.

Fig. 16 is a perspective view of a driving slider i according to an embodiment of the present invention.

Fig. 17 is a bottom view of the driving slider i according to the embodiment of the present invention.

Fig. 18 is a top view of a spacing mount according to an embodiment of the present invention.

Fig. 19 is a top view of a pushrod mounting table according to an embodiment of the invention.

Fig. 20 is a schematic view of an overall longitudinal section of a pushrod mounting table according to an embodiment of the present invention.

Fig. 21 is a perspective view of the driving slide block i, the rotating shaft ii and the driving slide block ii according to the embodiment of the present invention.

Fig. 22 is a perspective view of the driving slider i, the rotating shaft ii, the driving slider ii, and the driving rod according to the embodiment of the present invention.

Fig. 23 is a perspective view showing the cooperation of the driving slider i and the driving slider ii according to the embodiment of the present invention.

Fig. 24 is an overall perspective view of a lightweight pole according to an embodiment of the invention in a vertically collapsed condition.

Fig. 25 is an enlarged view of fig. 24 at D in accordance with an embodiment of the present invention.

Fig. 26 is an enlarged view at E in fig. 24.

Fig. 27 is a second perspective view of the lightweight bar of the embodiment of the present invention in a vertically collapsed condition.

Fig. 28 is an enlarged view at F in fig. 27.

Reference numerals:

1. the underwater push rod, 2, a structural frame, 3, a limit mounting table, 4, a semi-cylindrical groove I, 5, a rectifying cap, 6, a telescopic rod, 7, a bottom head, 8, a driving rod, 9, a rotating shaft III, 10, a structural rod, 11, a semi-cylindrical groove II, 12, a locking hoop, 13, a driving slide block I, 14, a rotating shaft II, 15, a driving slide block II, 16, a rotating shaft I, 17, a light rod, 18, a circular hole, 19, a transducer, 20, a first semicircular groove, 21, a push rod mounting table, 22, a second semicircular groove, 23 and a cylindrical groove; 24. the first accommodating groove is formed; 25. the second accommodating groove (26) and the upper limit mounting end face; 27. the upper push rod is provided with an end surface; 28. positioning the notch; 29. a positioning groove; 30. and (5) positioning blocks.

Detailed Description

The invention provides a unfolding mechanism for underwater acoustic detection, which has unfolding and retracting functions, and when the unfolding mechanism is used, the unfolding mechanism is driven by a motor to be unfolded into a multi-rod planar array, so that the underwater acoustic detection is carried out in all directions; when retrieving, the expansion mechanism can fold and withdraw, portable and accomodate. The invention has the characteristics of deep water pressure resistance, omnibearing underwater detection, low energy consumption, flexibility and convenience.

In order to better understand the above technical solution, the following will describe the technical solution in detail with reference to fig. 1 to 28 and the specific embodiment.

In order to solve the technical problems, the embodiment of the invention provides a deployment mechanism for underwater acoustic detection, which comprises a push rod module, a shell module and a link mechanism module.

As shown in fig. 1, the shell module includes rectifying cap 5, bottom head 7, structural frame 2 and transducer 19, rectifying cap 5 and bottom head 7 are installed in the both ends of structural frame 2, and rectifying cap 5 is hemispherical structure, and transducer 19 sets up the upper end at rectifying cap 5, fixed connection between rectifying cap 5 and the transducer 19, bottom head 7 be gyration shell structure, structural frame 2 include eight structural bars 10, eight structural bars 10 are parallel to each other, eight structural bars 10 equipartition is cylindrically, the one end and the rectifying cap 5 fixed connection of structural bar 10, the other end and the bottom head 7 fixed connection of structural bar 10.

As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 19 and fig. 20, the push rod module comprises an underwater push rod 1 and a push rod mounting table 21, wherein the underwater push rod 1 is positioned in an inner cavity of the structural frame 2, the push rod mounting table 21 is arranged in the inner cavity of the structural frame 2, the push rod mounting table 21 is of a hollow cylindrical structure, the outer side surface of the push rod mounting table 21 is fixedly connected with the inner side surfaces of eight structural rods 10 of the structural frame 2, one end of the underwater push rod 1 is fixedly arranged on the upper surface of the push rod mounting table 21, the underwater push rod 1, the push rod mounting table 21 and the structural frame 2 are positioned on the same axis, the other end of the underwater push rod 1 is fixedly connected with a driving sliding block ii 15, the underwater push rod 1 has a telescopic function, and preferably, the underwater push rod 1 is a hydraulic rod or a pneumatic rod.

The connecting rod mechanism module comprises a driving slide block II 15, a driving slide block I13, a rotating shaft II 14, a driving rod 8, a rotating shaft III 9, a telescopic rod 6, a rotating shaft I16, a locking hoop 12 and a light rod 17, wherein the driving slide block II 15, the driving slide block I13 and the underwater push rod 1 are positioned on the same axis and fixedly connected with one another. As shown in fig. 12, 13, 14, 15, 16, 17, 21, 22 and 23, eight first accommodating grooves 24 are uniformly distributed on the circumference of the driving sliding block ii 15, and semi-cylindrical grooves 4 are symmetrically formed on the groove walls on two sides of each first accommodating groove 24; eight accommodating grooves II 25 are uniformly distributed on the circumference of the driving sliding block I13, semi-cylindrical grooves II 11 are symmetrically formed in groove walls on two sides of each accommodating groove II 25, a cylindrical groove 23 is formed by the semi-cylindrical grooves II 11 of the driving sliding block I13 and the semi-cylindrical grooves I4 of the driving sliding block II 15, a rotating shaft II 14 is arranged in the cylindrical groove 23, a rotatable connection is formed between the whole driving sliding block I13 and the driving sliding block II 15 and one end of the driving rod 8 around the rotating shaft II 14, the other end of the driving rod 8 and one end of the telescopic rod 6 around the rotating shaft III 9 are rotatably connected, the telescopic rod 6 and the structural frame 2 are rotatably connected around the rotating shaft I16, the other end of the telescopic rod 6 and the light rods 17 are fixedly connected through locking hoops 12, the number of the light rods 17 is eight, spaces are formed between every two structural rods 10, each space corresponds to each light rod 17 and the telescopic rod 6, and the telescopic rod 6 and the light rods 17 can pass through the spaces.

As shown in fig. 24, 26, 27 and 28, the push rod module further includes a limit mounting table 3, the limit mounting table 3 is disposed in the inner cavity of the structural frame 2, eight positioning modules are uniformly distributed on an upper limit mounting end surface 26 of the limit mounting table 3, each positioning module includes two positioning blocks 30, each positioning block 30 is provided with a cylindrical through hole, a rotating shaft i 16 is jointly disposed in the two cylindrical through holes of each positioning module, and each telescopic rod 6 is located between the two positioning blocks 30.

The underwater push rod 1 drives the driving slide block II 15 to move, the driving slide block II 15 drives the driving slide block I13 to move, the driving slide block I13 drives the driving rod 8 to rotate around the rotating shaft II 14, the driving rod 8 drives the telescopic rod 6 to rotate around the rotating shaft III 9, and the telescopic rod 6 drives the light rod 17 to move.

The underwater push rod 1 moves downwards to drive the driving slide block II 15 and the driving slide block I13 to move downwards, the driving slide block I13 drives the driving rod 8 to do rotary motion around the rotating shaft II 14, one end of the driving rod 8 moves downwards, the other end of the driving rod 8 drives the telescopic rod 6 to do rotary motion around the rotating shaft III 9, the telescopic rod 6 is changed into a horizontal state from a vertical state along with the continuous downward movement of the underwater push rod 1, the telescopic rod 6 and the light rod 17 penetrate through a space, at the moment, the eight telescopic rods 6 and the light rod 17 are located on the same plane, and at the moment, the unfolding mechanism is in an unfolding state.

The underwater push rod 1 moves upwards to drive the driving slide block II 15 and the driving slide block I13 to move upwards, the driving slide block I13 drives the driving rod 8 to do rotary motion around the rotating shaft II 14, one end of the driving rod 8 moves upwards, the other end of the driving rod 8 drives the telescopic rod 6 to do rotary motion around the rotating shaft III 9, the telescopic rod 6 is changed into a vertical state from a horizontal state along with the continuous upward movement of the underwater push rod 1, the telescopic rod 6 and the light rod 17 retract from the space, at the moment, the eight telescopic rods 6 and the light rod 17 are in a parallel state and are cylindrical, and at the moment, the unfolding mechanism is in a contracted state.

As a preferred embodiment of the scheme, as shown in fig. 18, 20 and 25, the limit mounting table 3 is of a hollow cylindrical structure, the outer side surface of the limit mounting table 3 is fixedly connected with the inner side surfaces of eight structural rods 10 of the structural frame 2, an upper limit mounting end surface 26 of the limit mounting table 3 and an upper push rod mounting end surface 27 of the push rod mounting table 21 are perpendicular to the axis of the structural frame 2, a circular hole 18 is formed in the middle of the limit mounting table 3, a first semicircular groove 20 is formed in the outer periphery of the limit mounting table, and a second semicircular groove 22 is formed in the outer periphery of the push rod mounting table 21. The stroke of the underwater push rod 1 can be restrained, when the driving rod 8 is in a vertical state, the driving rod 8 is positioned in a circular hole 18 formed in the middle of the limiting installation table 3, the telescopic rod 6 is abutted to the upper surface of the limiting installation table 3, the light rod 17 is in a horizontal unfolding state, and at the moment, the limiting installation table 3 can limit the light rod 17 to continuously move downwards. When the driving rod 8 is in a horizontal state, the light rod 17 is in a vertical folded state, the light rod 17 is just abutted against the inner side surfaces of the first semicircular groove 20 of the limiting mounting table 3 and the second semicircular groove 22 of the push rod mounting table 21, and at the moment, the light rod 17 can be contracted in the first semicircular groove 20 of the limiting mounting table 3 and the second semicircular groove 22 of the push rod mounting table 21. The link module is located in the interior of the housing module and the entire push rod module is also located in the interior of the housing module when the lightweight bar 17 is retracted within the first semicircular recess 20 of the limit mount 3 and the second semicircular recess 22 of the push rod mount 21.

As a preferred embodiment of the solution, the electrical signal controls the movement of the underwater pushrod 1. The electric signal controls the expansion and contraction of the underwater push rod 1, the transducer 19 firstly receives the underwater sound signal transmitted by the ship bottom, the transducer 19 converts the received underwater sound signal into an electric signal and transmits the electric signal to the motor, and the motor rotates to drive the expansion and contraction of the underwater push rod 1, so that the link mechanism module is driven to rotate. In this way, the transducer 19 may be remotely controlled acoustically.

As shown in fig. 8, 9, 10 and 11, as a preferred embodiment of the present solution, the upper end of the rectifying cap 5 is provided with a ring structure, so that the stability of placement can be improved, and the effect of rectifying and noise reduction can be achieved.

As a preferred embodiment of the present embodiment, the lightweight rod 17 is made of carbon fiber. The light rods 17 made of carbon fiber are multiple, 6 to 12 can be set according to the use condition, and multiple sonar testing unit interfaces are equidistantly arranged on each light rod 17.

As a preferred embodiment of the present solution, the telescopic rod 6 has a hollow cylindrical structure, and thus, cables such as a power line and a signal line may be provided inside the telescopic rod 6.

Eight positioning grooves 29 are uniformly distributed on the outer side face of the limiting mounting table 3, and the inner side face of each structural rod 10 abuts against the positioning groove 29.

Eight positioning groove groups are uniformly distributed on the upper limiting mounting end face 26 of the limiting mounting table 3, each positioning groove group comprises two positioning notch grooves 28, each positioning block 30 is provided with a positioning surface, and the positioning surfaces are abutted in the corresponding positioning notch grooves 28.

The present invention is not limited to the above-mentioned embodiments, but is not limited to the above-mentioned embodiments, and any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical matters of the present invention can be made by those skilled in the art without departing from the scope of the present invention.

Claims

1. The utility model provides a deployment mechanism for acoustic detection under water, its characterized in that, includes push rod module, casing module and link mechanism module, the casing module includes structural frame (2), the push rod module includes push rod under water (1) and push rod mount table (21), push rod under water (1) are located the inner chamber of structural frame (2), push rod mount table (21) set up in the inner chamber of structural frame (2), push rod mount table (21) with structural frame (2) fixed connection, push rod under water (1) one end fixed mounting in push rod mount table (21) upper surface, push rod under water (1) push rod mount table (21) with structural frame (2) are located same axis, the push rod module drives link mechanism module realizes expanding and contracting.

2. The unfolding mechanism for underwater acoustic detection according to claim 1, wherein the link mechanism module comprises a driving slide block II (15), a driving slide block I (13), a rotating shaft II (14), a driving rod (8), a rotating shaft III (9), a telescopic rod (6), a rotating shaft I (16) and a light rod (17), the other end of the underwater push rod (1) is fixedly connected with the driving slide block II (15), a detachable fixed connection is formed between the driving slide block I (13) and the driving slide block II (15), the driving slide block I (13) and the underwater push rod (1) are positioned on the same axis, a rotatable connection is formed between the whole formed by the driving slide block I (13) and the driving slide block II (15) and one end of the driving rod (8) around the rotating shaft II (14), the other end of the driving rod (8) and one end of the telescopic rod (6) are rotatably connected around the rotating shaft III (9), the telescopic rod (6) and the frame (2) and the other end of the telescopic rod (6) are rotatably connected with the light rod (17) around the rotating shaft II (16), the telescopic rod (6) and the lightweight rod (17) can pass through the space of the structural frame (2).

3. The unfolding mechanism for underwater acoustic detection according to claim 2, characterized in that the shell module comprises a rectifying cap (5) and a bottom head (7), the rectifying cap (5) and the bottom head (7) are installed at two ends of the structural frame (2), the structural frame (2) comprises a plurality of structural rods (10), the structural rods (10) are mutually parallel, the structural rods (10) are uniformly distributed to be cylindrical, the outer side surface of the push rod installation table (21) is fixedly connected with the inner side surfaces of the structural rods (10), the space is reserved between every two structural rods (10), each space corresponds to each light rod (17) and each telescopic rod (6), the telescopic rods (6) and the light rods (17) can penetrate through the space, a plurality of accommodating grooves (24) are uniformly distributed on the circumference of the driving sliding block (15), and a groove wall (4) is symmetrically formed on two sides of each accommodating groove (24); the utility model discloses a structure frame, including drive slider I (13), including structure frame (2), including drive slider II (15), drive slider I (13) circumference equipartition is equipped with a plurality of holding groove two (25), every symmetry has seted up semicylindrical recess two (11) on the both sides cell wall of holding groove two (25), drive slider I (13) semicylindrical recess two (11) with drive slider II (15) semicylindrical recess one (4) forms cylindrical recess (23), cylindrical recess (23) inside is equipped with pivot II (14), and the push rod module still includes spacing mount pad (3), spacing mount pad (3) set up in the inner chamber of structure frame (2), spacing mount pad (3) go up spacing mounting end (26) equipartition has a plurality of positioning module, every positioning module includes two locating pieces (30), every locating piece (30) are equipped with cylindrical through-hole, every two of positioning module's inside jointly be equipped with one pivot I (16), every telescopic link (6) are located two between locating pieces (30).

4. A deployment mechanism for underwater acoustic detection as claimed in claim 3, characterized in that the pushrod mounting (21) is of hollow cylindrical configuration.

5. The unfolding mechanism for underwater acoustic detection according to claim 4, characterized in that the limit mounting table (3) is of a hollow cylindrical structure, the outer side surface of the limit mounting table (3) is fixedly connected with the inner side surfaces of a plurality of structural rods (10) of the structural frame (2), the upper limit mounting end surface (26) of the limit mounting table (3) and the upper push rod mounting end surface (27) of the push rod mounting table (21) are perpendicular to the axis of the structural frame (2), a circular hole (18) is formed in the middle of the limit mounting table (3), a first semicircular groove (20) is formed in the periphery of the push rod mounting table (21), a second semicircular groove (22) is formed in the periphery of the push rod mounting table (21), when the driving rod (8) is in a vertical state, the driving rod (8) is located in the circular hole (18) formed in the middle of the limit mounting table (3), the telescopic rod (6) abuts against the upper surface of the limit mounting table (3), and when the driving rod (17) is in a light state, the driving rod (17) is in contact with the second semicircular groove (20) and the second semicircular groove (20).

6. The unfolding mechanism for underwater acoustic detection according to claim 4, characterized in that the upper end of the rectifying cap (5) is provided with a circular ring structure.

7. The unfolding mechanism for underwater acoustic detection according to claim 4 is characterized in that the light rods (17) are made of carbon fibers, and a plurality of sonar testing unit interfaces are equidistantly arranged on each light rod (17).

8. The unfolding mechanism for underwater acoustic detection according to claim 5 is characterized in that a plurality of positioning grooves (29) are uniformly distributed on the outer side face of the limiting mounting table (3), and the inner side face of each structural rod (10) abuts against the positioning groove (29).

9. The unfolding mechanism for underwater acoustic detection according to claim 8, characterized in that a plurality of positioning groove groups are uniformly distributed on the upper limit mounting end face (26) of the limit mounting table (3), each positioning groove group comprises two positioning sink grooves (28), and each positioning block (30) is provided with a positioning surface, and the positioning surfaces are abutted in the corresponding positioning sink grooves (28).

10. The unfolding mechanism for underwater acoustic detection according to claim 9, characterized in that the shell module comprises a transducer (19), the rectifying cap (5) is of a hemispherical structure, the transducer (19) is arranged at the upper end of the rectifying cap (5), the rectifying cap (5) is fixedly connected with the transducer (19), the bottom sealing head (7) is of a rotary shell structure, one end of the structural rod (10) is fixedly connected with the rectifying cap (5), the other end of the structural rod (10) is fixedly connected with the bottom sealing head (7), the connecting rod mechanism module comprises a locking hoop (12), the other end of the telescopic rod (6) is fixedly connected with the light rod (17) through the locking hoop (12), and the number of the structural rod (10), the first accommodating groove (24), the second accommodating groove (25), the light rod (17), the positioning module, the positioning groove (29) and the positioning groove group is eight.