CN215436814U

CN215436814U - Towed body device of multifunctional echo detector transducer

Info

Publication number: CN215436814U
Application number: CN202121684861.8U
Authority: CN
Inventors: 唐剑锋; 周正; 肖新宗; 邢明星; 张铁财; 王英才; 胡圣; 孙赫英; 王能汉; 王源; 张晶; 陈丽雯; 熊丹妮; 周明春
Original assignee: Ecological Environment Monitoring And Scientific Research Center Of Yangtze River Basin Ecological Environment Supervision And Administration Bureau Ministry Of Ecological Environment
Current assignee: Ecological Environment Monitoring And Scientific Research Center Of Yangtze River Basin Ecological Environment Supervision And Administration Bureau Ministry Of Ecological Environment
Priority date: 2021-07-23
Filing date: 2021-07-23
Publication date: 2022-01-07
Anticipated expiration: 2031-07-23

Abstract

A towed body assembly for a multi-function echo sounder transducer, comprising: the device comprises a dragging and floating component, a steering component and a brake component; the dragging and floating assembly comprises two floating barrels and a first fixing plate; the two floating drums are arranged in parallel; a cylinder frame is fixedly sleeved on the peripheral wall of the floating cylinder; one side of the cylinder frame is fixedly connected with an installation plate along the horizontal direction; one side of the mounting plate, which is far away from the cylinder frame, is provided with a mounting groove; the top surface of the mounting plate is provided with a plurality of first through holes, and the first through holes penetrate through the mounting plate and are communicated with the mounting groove; two ends of the first fixing plate are respectively detachably connected with the two mounting grooves; the top surface of the first fixing plate is also provided with a plurality of transducer fixing holes; the steering assembly is fixedly arranged at one end, close to the detection ship, of the first fixing plate, and the brake assembly is fixedly arranged at the other end of the first fixing plate; the utility model enables the transducer to be immersed under water, thereby not only protecting the transducer but also ensuring the reliability of detection data; and also to follow the probe boat for pre-steering and braking.

Description

Towed body device of multifunctional echo detector transducer

Technical Field

The utility model relates to the field of fish resource investigation and aquatic organism resource protection, in particular to a towed body device of a transducer of a multifunctional echo detector.

Background

The fish echo detector is based on the underwater acoustic reflection principle, sound waves with certain frequency are emitted by the transducer, the sound waves encounter a target object to generate echo waves, the echo waves are scattered to the transducer in a backscattering mode, and if the signal level exceeds a threshold value selected by a user, the echo waves are received by the transducer and converted into electronic signals which are transmitted to the control computer through a cable, and an echo map is generated. The received echoes are analyzed and processed by professional software, and the position of a target, the target strength, the target quantity, the distribution condition and the like can be measured, so that the classification and the like of fishes and marine organisms, aquatic plants, water bottom sediments and sediments can be researched, the water environment can be continuously and automatically monitored for a long time, and digital, real-time and dynamic data can be provided.

The fish echo detector mainly comprises an energy converter which can convert an electronic signal into a sound pulse and transmit the sound pulse to water, when a sound wave meets an obstacle in the water transmission process, part of the sound signal can measure the position of a target according to the interval time of receiving a target echo signal after the sound wave is transmitted and the transmission speed of the sound wave in the water, the strength and the structure of the echo signal are analyzed, and the target strength, the target quantity, the distribution condition and the like can be estimated. The device mainly realizes investigation and evaluation of fish shoal resources in a certain water area. The method comprises the following steps: depth measurement, fish school total amount, size distribution, species, single fish tracking and the like. When the method is used for investigating fishes, the method has the characteristics of high speed, real-time tracking in a certain time and no damage to the fishes, and the obtained data can provide a basis for further research.

However, the transducer of the fish echo detector can be placed on the water surface for work only by a special towed body device, the existing towed body device has large volume and few functions, and is inconvenient for field use, or one end of the towed body device is connected with a probe by a rod, and the other end of the towed body device is bound beside a ship; in addition, the existing towed body device cannot carry out pre-steering by self when the detection ship steers, so that the towed body device still advances in the original direction after the detection ship steers, and the towed body device is suddenly increased by the force of the detection ship in the running direction, and a rope and an energy transducer are damaged; and the existing towed body device can not be rapidly stopped when the detection ship stops advancing, so that the probability that the towed body device hits the ship body is increased, and the transducer is vibrated and easily damaged.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a towed body device of a transducer of a multifunctional echo sounding instrument, which aims to solve the problems in the prior art, and the towed body device is light, detachable and additionally provided with other functions, can be used for steering in advance and stopping advancing rapidly, and plays a good role in supporting and protecting the transducer.

A towed body device of a transducer of a multifunctional echo sounder comprises a towing and floating assembly, a steering assembly and a brake assembly;

the dragging and floating assembly comprises two floating barrels and a first fixing plate; the two floating cylinders are arranged in parallel; a cylinder frame is fixedly sleeved on the peripheral wall of the floating cylinder; one side of the cylindrical frame is fixedly connected with an installation plate along the horizontal direction; one side of the mounting plate, which is far away from the cylinder frame, is provided with a mounting groove; the top surface of the mounting plate is provided with a plurality of first through holes, and the first through holes penetrate through the mounting plate and are communicated with the mounting groove; two ends of the first fixing plate are detachably connected with the two mounting grooves respectively; the top surface of the first fixing plate is also provided with a plurality of transducer fixing holes; the steering assembly is fixedly installed at one end, close to the detection ship, of the first fixing plate, and the brake assembly is fixedly installed at one end, far away from the detection ship, of the first fixing plate.

Preferably, the steering assembly comprises a second fixing plate, a steering rod, a transmission shaft and a steering plate; one end of the second fixing plate is fixedly connected with the first fixing plate; a bearing seat is fixedly arranged in the middle of one end, close to the detection ship, of the top surface of the second fixing plate; the transmission shaft penetrates through the bearing seat and the second fixing plate from top to bottom; the transmission shaft is rotatably connected with the second fixing plate through a bearing; the middle part of the bottom surface of the steering rod is fixedly connected with the top end surface of the transmission shaft; the steering plate is vertically arranged; the middle part of the top surface of the steering plate is fixedly connected with the bottom end surface of the transmission shaft; the steering rod is perpendicular to the steering plate; and rope tying openings are formed in two ends of the top surface of the steering rod.

Preferably, the brake assembly comprises a third fixing plate, a mounting frame, a first electric push rod, an inertial sensor and a spoiler; the fixing plate is fixedly connected with the first fixing plate; the mounting rack is fixedly arranged in the middle of the top surface of the third fixing plate; a through groove is formed in the middle of one end, far away from the first fixing plate, of the third fixing plate; one end of the through groove, which is far away from the first fixing plate, penetrates through the side edge of the third fixing plate; the first electric push rod is fixedly arranged on the mounting frame, and the output end of the first electric push rod faces downwards vertically; the position of the first electric push rod corresponds to the position of the through groove up and down; the output end of the first electric push rod is fixedly connected with one end of a connecting rod; the other end of the connecting rod extends out of the third fixing plate and is fixedly provided with a spoiler; the spoiler is vertically arranged; the inertial sensor is fixedly installed at the top of the first electric push rod and electrically connected with the first electric push rod.

Preferably, one end of the buoy close to the exploration ship is fixedly connected with a bent cylinder; one end of the bent cylinder is fixedly connected with the floating cylinder, and the other end of the bent cylinder is bent upwards; a sealing cover is detachably arranged at one end of the buoy far away from the detection ship; and high-strength EVA granular material is filled in the buoy.

Preferably, probe loading ports are formed in the bottoms of the two buoys at one side close to the center line.

Preferably, the bending cylinder is bent upwards by an angle of 45 °.

Preferably, the top surface of the bearing is buckled with a bearing cover; the transmission shaft penetrates through the middle of the bearing cover.

Preferably, mechanical sealing elements are mounted at the contact position of the bearing cover and the transmission shaft and at the contact position of the bottom of the second fixing plate and the transmission shaft.

Preferably, the second fixing plate is of an isosceles triangle structure; one side of the bottom edge of the isosceles triangle is fixedly connected with the first fixing plate.

Preferably, the connecting rod and the spoiler are also fixedly connected with a reinforcing beam.

The utility model discloses the following technical effects:

(1) the transducer for loading the fish echo detector floats on the water surface through the buoyancy of the transducer, so that the mounting and fixing with a ship board are avoided, and the transducer can be completely and vertically immersed under water in the operation process, so that the transducer is protected, and the reliability of detection data is ensured;

(2) the ship is connected to the side of the ship only through the rope, and other accessories are not needed to be erected, so that the assembly, disassembly and transportation of the ship are facilitated on the operation site;

(3) the utility model can additionally load other devices such as water quality parameter probes and the like, and can automatically measure and store water body physical and chemical data;

(4) the utility model can adjust the direction of the towing device according to the advancing direction of the detection ship, and avoids overlarge deviation between the towing device and the advancing direction of the detection ship in the turning process of the detection ship, so that the towing device is pulled by the sudden increase of the direction of the detection ship to damage the transducer;

(5) the utility model can adjust the resistance according to the motion state of the detection ship, and when the detection ship stops moving, the device can also stop quickly, thereby avoiding strong collision with the ship body.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a top view of the present invention;

FIG. 2 is a cross-sectional view of the utility model A-A;

FIG. 3 is a front view of the present invention;

FIG. 4 is an axial view of the tow float assembly of the present invention;

FIG. 5 is an axial view of the alternate orientation of the tow float assembly of the present invention;

FIG. 6 is a front view of the anti-rollover assembly of the present invention;

FIG. 7 is a top view of the rollover prevention assembly of the present invention.

Wherein:

1. a float bowl; 2. mounting a plate; 3. a first fixing plate; 4. a transducer fixing hole; 5. a rope tying opening; 6. a probe loading port; 7. a cylindrical frame; 8. a sealing cover; 9. bending the cylinder; 10. a first through hole; 11. a steering lever; 12. a drive shaft; 13. a steering plate; 14. a bearing cap; 15. a bearing seat; 16. a bearing; 17. a second fixing plate; 18. a spoiler; 19. a connecting rod; 20. a reinforcing beam; 21. an inertial sensor; 22. a first electric push rod; 23. a third fixing plate; 24. a through groove; 25. a mounting frame; 26. a base; 27. a second electric push rod; 28. a buoyancy block; 29 grooves; 30. a reactive material; 31. the balloon is compressed.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

Referring to fig. 1-7, the towed body device of the transducer of the multifunctional echo sounder provided by the utility model comprises a towing and floating assembly, a steering assembly and a brake assembly;

the dragging and floating assembly comprises two buoys 1 and a first fixing plate 3; the two floating drums 1 are arranged in parallel; a cylinder frame 7 is fixedly sleeved on the peripheral wall of the buoy 1; one side of the cylinder frame 7 is fixedly connected with an installation plate 2 along the horizontal direction; one side of the mounting plate 2, which is far away from the cylinder frame 7, is provided with a mounting groove; the top surface of the mounting plate 2 is provided with a plurality of first through holes 10, and the first through holes 10 penetrate through the mounting plate 2 and are communicated with the mounting groove; two ends of the first fixing plate 3 are respectively detachably connected with the two mounting grooves; the top surface of the first fixing plate 3 is also provided with a plurality of transducer fixing holes 4; the steering assembly is fixedly arranged at one end, close to the detection ship, of the first fixing plate 3, and the brake assembly is fixedly arranged at one end, far away from the detection ship, of the first fixing plate 3; the buoy 1 is of a cylindrical structure, and the cylinder frame 7 and the mounting plate 2 are symmetrically arranged by the central line of the first fixing plate 3; the part that the mounting groove was stretched into at 3 both ends of first fixed plate has seted up a plurality of second through-hole, and the second through-hole equals and the position corresponds with first through-hole 10 quantity, and mounting panel 2 passes through the bolt fastening with first fixed plate 3.

In a further optimized scheme, the steering assembly comprises a second fixing plate 17, a steering rod 11, a transmission shaft 12 and a steering plate 13; one end of the second fixing plate 17 is fixedly connected with the first fixing plate 3; a bearing seat 15 is fixedly arranged in the middle of one end, close to the detection ship, of the top surface of the second fixing plate 17; the transmission shaft 12 penetrates through the bearing seat 15 and the second fixing plate 17 from top to bottom; the transmission shaft 12 is rotatably connected with a second fixing plate 17 through a bearing 16; the middle part of the bottom surface of the steering rod 11 is fixedly connected with the top end surface of the transmission shaft 12; the steering plate 13 is vertically arranged; the middle part of the top surface of the steering plate 13 is fixedly connected with the bottom end surface of the transmission shaft 12; the steering rod 11 is arranged perpendicular to the steering plate 13; both ends of the top surface of the steering rod 11 are provided with rope tying openings 5; the steering plate 13 rotates with the rotation of the steering rod 11; the two rope tying openings 5 are respectively connected with the detection ship through a rope, and the two ropes are arranged in parallel; the detection ship can pull the towed body device provided by the utility model to advance in water through two ropes; when the detection ship turns, one of the two parallel ropes becomes loose and the other rope is tensioned, so that the steering rod 11 is driven to rotate, the steering rod 11 drives the steering plate 13 to rotate towards the direction of the detection ship through the transmission shaft 12 when rotating, and the towed body device provided by the utility model automatically turns towards the direction of the detection ship when the steering plate 13 is stressed in water, so that the towed body device is prevented from continuously driving towards the original direction due to the steering of the detection ship, and finally, the towed body device is suddenly turned, and the energy converter and the ropes can be protected; when the detecting ship stops steering, the two ropes will slowly return to the same stressed state, the steering plate 13 will return to the state parallel to the buoy 1, and the towed body device will move linearly.

In a further optimized scheme, the brake assembly comprises a third fixing plate 23, a mounting frame 25, a first electric push rod 22, an inertial sensor 21 and a spoiler 18; the third fixing plate 23 is fixedly connected with the first fixing plate 3; the mounting bracket 25 is fixedly mounted in the middle of the top surface of the third fixing plate 23; a through groove 24 is formed in the middle of one end, far away from the first fixing plate 3, of the third fixing plate 23; one end of the through groove 24 far away from the first fixing plate 3 penetrates through the side edge of the third fixing plate 23; the first electric push rod 22 is fixedly arranged on the mounting frame 25, and the output end of the first electric push rod is vertically downward; the position of the first electric push rod 22 corresponds to the through groove 24 up and down; the output end of the first electric push rod 22 is fixedly connected with one end of a connecting rod 19; the other end of the connecting rod 19 extends out of the third fixing plate 23 and is fixedly provided with a spoiler 18; the spoiler 18 is vertically arranged; the inertial sensor 21 is fixedly arranged at the top of the first electric push rod 22 and is electrically connected with the first electric push rod 22; when the detection ship stops advancing, the towed body device can continue to advance due to inertia, so that the towed body device is easy to collide with the detection ship body and damage the transducer; therefore, when the detection ship stops moving, the towed body device is not under the action of pulling force, and the acceleration in the advancing direction does not exist, and the inertial sensor 21 sends an instruction to drive the first electric push rod 22 to extend out after detecting that the acceleration in the advancing direction does not exist, so as to drive the spoiler 18 to extend into the water, and therefore the towed body device can be decelerated through the resistance of water flow until the towed body device stops; thus, the condition that the towed body device collides with the detection ship body is avoided; when the detection ship starts to move, the acceleration in the advancing direction is possessed, the inertial sensor 21 sends a command to enable the first electric push rod 22 to retract, the spoiler 18 extends out of the water surface, and the towed body device normally advances.

In a further optimized scheme, one end of the buoy 1 close to the exploration ship is fixedly connected with a bent cylinder 9; one end of the curved cylinder 9 is fixedly connected with the buoy 1, and the other end of the curved cylinder 9 is bent upwards and forms an included angle of 45 degrees with the horizontal plane; a sealing cover 8 is detachably arranged at one end of the buoy 1 far away from the detection ship; high-strength EVA granular material is filled in the buoy 1; the bent cylinder 9 is bent upwards by 45 degrees, so that the resistance of water flow to the end surface of the buoy 1 can be effectively reduced, and one end of the bent cylinder 9 bent upwards is arranged in a sealing manner; the sealing cover 8 can prevent water from entering the buoy 1 to influence buoyancy; the inside packing of flotation pontoon 1 has high strength EVA granular material to can guarantee not sinking after flotation pontoon 1 leaks, EVA granular material can continue to provide buoyancy for the flotation pontoon, makes the device possess dual fail-safe.

According to a further optimized scheme, probe loading ports 6 are formed in the bottoms of the two buoys 1 on one sides close to the center line; the probe loading port 6 can be additionally provided with equipment such as a water quality parameter probe and the like to measure and store water body mathematical and chemical data.

In a further optimized scheme, the transducer fixing hole 4 is in a long strip shape; the long-strip-shaped transducer fixing hole 4 can be used for fixing transducers of different brands and models and is suitable for different sizes.

In a further optimized scheme, a bearing cover 14 is buckled on the top surface of the bearing 16; the transmission shaft 12 penetrates through the middle part of the bearing cover 14; the bearing cover can protect the bearing.

In a further optimized scheme, mechanical sealing elements are arranged at the contact position of the bearing cover 14 and the transmission shaft 12 and the contact position of the bottom of the second fixing plate 17 and the transmission shaft 12; the mechanical seal may prevent water from entering the bearing 16 and rusting the bearing 16 or the drive shaft.

In a further optimized scheme, the second fixing plate 17 is in an isosceles triangle structure; one side of the bottom edge of the isosceles triangle is fixedly connected with the first fixing plate 3; the apex angle of the isosceles triangle faces the advancing square, so that the resistance of water can be reduced.

In a further optimized scheme, the connecting rod 19 and the spoiler 18 are also fixedly connected with a reinforcing beam 20; the stiffening beam 20 can make the connection between the spoiler 18 and the connecting rod 19 more secure and avoid the breakage of the connection.

When the utility model is used, the transducer is fixedly arranged on the bottom surface of the first fixing plate 3 through the transducer fixing hole 4 by using a bolt and is put into water, and the transducer can be completely immersed into the water; then, two ropes are tied on the tying rope openings 5 at two ends of the steering rod 11 respectively, the other ends of the ropes are tied on the ship board, and the two ropes are parallel; and finally, starting the detection ship, pulling the detection ship to move forward, wherein the detection ship can move forward normally along with the detection ship in the normal forward process, when the detection ship turns, because the angles of the detection ship and the detection ship are different, so that one becomes loose, the tensile force is increased and tightened, and then the steering rod 11 is driven to rotate, the steering rod 11 is fixedly connected with the steering plate 13 through the transmission shaft 12, the deflector 13 will also deflect, thereby allowing the present invention to have a tendency to turn, follow the probe boat turn, when the detection ship stops advancing, the utility model can not be under the action of the pulling force of the rope, so that the forward acceleration disappears, the inertial sensor 21 sends out an instruction after detecting that the forward acceleration does not exist, so that the first electric push rod 22 extends out, the spoiler 18 is driven to extend into the water and rapidly stops advancing under the resistance action of the water, so that collision with the ship body is avoided; when the detection ship moves forwards again, the utility model is pulled by the rope and has forward acceleration, the inertial sensor 21 sends a signal again to enable the first electric push rod 22 to be retracted, the spoiler 18 is lifted to leave the water surface, and the utility model continues to move normally along with the detection ship.

In another embodiment of the present invention, when the towed body device provided by the present invention encounters a large storm or a storm, the towed body device will turn over along with the fluctuation of the storm, in order to prevent the towed body device from turning over and exposing the transducer out of the water, a rollover prevention assembly may be fixedly mounted on the top surface of the first fixing plate 3, the rollover prevention assembly includes a base 26, a plurality of second electric push rods 27 and a buoyancy block 28, the base 26 is fixedly mounted on the top surface of the first fixing plate 3, the plurality of second electric push rods 27 are fixedly mounted on the top surface of the base 26, the output end of the second electric push rods 27 faces outward, the buoyancy block 28 is fixedly mounted on the output end of the second electric push rods 27, a groove 29 is formed in the top surface of the buoyancy block 28, and a reaction material 30 is filled in the groove 29; a compression air bag 31 is fixedly arranged on the end surface of the groove 29; when the device is in violent shaking, the reaction material 30 reacts to generate a large amount of gas and push out the compression air bag 31, so that when the buoyancy block 28 enters water due to side turning, buoyancy can be provided to prevent the buoyancy block from continuing to turn on the side; the second electric push rod 27 is inclined downwards, and the output end just contacts the water surface when extending out.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.

Claims

1. A towed body assembly for a transducer of a multifunction echo sounder, comprising: the device comprises a dragging and floating component, a steering component and a brake component;

the dragging and floating assembly comprises two buoys (1), a first fixing plate (3) and a mounting assembly; the two floating cylinders (1) are arranged in parallel, and the two floating cylinders (1) are respectively detachably mounted on two sides of the first fixing plate (3) through the mounting assemblies; the mounting assembly comprises a cylinder frame (7) and a mounting plate (2); the cylinder frame (7) is fixedly sleeved on the peripheral wall of the buoy (1); the mounting plate (2) is fixedly connected to one side of the cylinder frame (7) along the horizontal direction; the first fixing plate (3) is detachably connected with the mounting plate (2), and the top surface of the first fixing plate (3) is also provided with a plurality of transducer fixing holes (4); the steering assembly is fixedly installed at one end, close to the detection ship, of the first fixing plate (3), and the brake assembly is fixedly installed at one end, far away from the detection ship, of the first fixing plate (3).

2. The towed body assembly of a multi-function echosounder transducer, according to claim 1, wherein: the steering assembly comprises a second fixing plate (17), a steering rod (11), a transmission shaft (12) and a steering plate (13); one end of the second fixing plate (17) is fixedly connected with the first fixing plate (3); a bearing seat (15) is fixedly arranged in the middle of one end, close to the exploration ship, of the top surface of the second fixing plate (17); the transmission shaft (12) penetrates through the bearing seat (15) and the second fixing plate (17) from top to bottom; the transmission shaft (12) is rotatably connected with the second fixing plate (17) through a bearing (16); the middle part of the bottom surface of the steering rod (11) is fixedly connected with the top end surface of the transmission shaft (12); the steering plate (13) is vertically arranged; the middle part of the top surface of the steering plate (13) is fixedly connected with the bottom end surface of the transmission shaft (12); the steering rod (11) is perpendicular to the steering plate (13); both ends of the top surface of the steering rod (11) are provided with rope tying openings (5).

3. The towed body assembly of a multi-function echosounder transducer, according to claim 1, wherein: the brake assembly comprises a third fixing plate (23), a mounting frame (25), a first electric push rod (22), an inertial sensor (21) and a spoiler (18); the third fixing plate (23) is fixedly connected with the first fixing plate (3); the mounting rack (25) is fixedly mounted in the middle of the top surface of the third fixing plate (23); a through groove (24) is formed in the middle of one end, far away from the first fixing plate (3), of the third fixing plate (23); one end, far away from the first fixing plate (3), of the through groove (24) penetrates through the side edge of the third fixing plate (23); the first electric push rod (22) is fixedly arranged on the mounting rack (25), and the output end of the first electric push rod is vertically downward; the position of the first electric push rod (22) corresponds to the position of the through groove (24) up and down; the output end of the first electric push rod (22) is fixedly connected with one end of a connecting rod (19); the other end of the connecting rod (19) extends out of the third fixing plate (23) and is fixedly provided with a spoiler (18); the spoiler (18) is vertically arranged; the inertial sensor (21) is fixedly mounted at the top of the first electric push rod (22) and is electrically connected with the first electric push rod (22).

4. The towed body assembly of a multi-function echosounder transducer, according to claim 1, wherein: one end of the buoy (1) close to the detection ship is fixedly connected with a bent cylinder (9); one end of the bent cylinder (9) is fixedly connected with the buoy (1), and the other end of the bent cylinder (9) is bent upwards; a sealing cover (8) is detachably arranged at one end of the buoy (1) far away from the detection ship; the inside of the buoy (1) is filled with high-strength EVA granular material.

5. The towed body assembly of a multi-functional echosounder transducer according to claim 4, wherein: and probe loading ports (6) are formed in the bottoms of the two buoys (1) at one side close to the central line.

6. The towed body assembly of a multi-functional echosounder transducer according to claim 4, wherein: the upward bending angle of the bent cylinder (9) is 45 degrees.

7. The towed body assembly of a multi-functional echosounder transducer according to claim 2, wherein: a bearing cover (14) is buckled on the top surface of the bearing (16); the transmission shaft (12) penetrates through the middle of the bearing cover (14).

8. The towed body assembly of a multi-function echosounder transducer, according to claim 7, wherein: and mechanical sealing elements are arranged at the contact position of the bearing cover (14) and the transmission shaft (12) and the contact position of the bottom of the second fixing plate (17) and the transmission shaft (12).

9. The towed body assembly of a multi-functional echosounder transducer according to claim 2, wherein: the second fixing plate (17) is of an isosceles triangle structure; one side of the bottom edge of the isosceles triangle is fixedly connected with the first fixing plate (3).

10. The towed body assembly of a multi-functional echosounder transducer according to claim 3, wherein: the connecting rod (19) and the spoiler (18) are also fixedly connected with a reinforcing beam (20).