Shock absorption mechanism, sonar with shock absorption mechanism and shock absorption method of sonar

Abstract

The invention discloses a damping mechanism, a sonar with the damping mechanism and a damping method of the sonar, and relates to the technical field of underwater detection.The sonar comprises a sonar body, a watertight compartment, a driving mechanism and an overturning cover, the driving mechanism is arranged at the top of the watertight compartment, and the overturning cover is arranged on the driving mechanism; the driven end of the turnover cover is rotatably installed in the watertight compartment and is drivingly connected to the driving mechanism, the sonar body is assembled at the assembling end of the turnover cover, and when the turnover cover is driven to turn over in the direction of covering the bottom opening of the watertight compartment, the turnover cover enables the sonar body to be contained in a compartment cavity of the watertight compartment, and the sonar body is driven by the turnover cover to be driven to rotate in the direction of covering the bottom opening of the watertight compartment. When the turnover cover is driven to turn over in the direction of opening the bottom opening of the watertight compartment, the turnover cover enables the sonar body to be suspended below the watertight compartment, in this way, the sonar can be in a recovery state and a detection state, when the sonar is in the recovery state, the sonar body is hidden and protected, and when the sonar is in the detection state, the sonar body is protected. When the sonar is in a detection state, the sonar is used for underwater detection.

Description

Technical Field

[0001] The present invention relates to the technical field of underwater detection, and in particular to a shock absorbing mechanism, a sonar with the shock absorbing mechanism, and a shock absorbing method of the sonar. Background Art

[0002] Sonar has a wide range of uses in the fields of ocean detection, military defense, underwater resource development, and marine environment monitoring. In the prior art, the sonar is directly installed on the bottom of the submersible or the hull. Regardless of whether the sonar needs to be activated, the sonar is directly exposed to the bottom of the submersible or the hull. For example, in the Chinese utility model patent with the authorization notification number CN214895795U, the sonar is installed on the bottom of the submersible or the hull through the main mounting rod. The defects of the prior art are: first, during the navigation of the submersible or the hull, especially when the submersible or the hull sails to the shoal position, the sonar protruding from the submersible or the hull is easily directly collided with the seabed objects and damaged, or even detached from the submersible or the hull. Secondly, when the submersible or the hull collides or vibrates due to other reasons, the vibration will be directly transmitted to the sonar, causing the sonar to be easily affected by the vibration and reduce the detection accuracy. Summary of the invention

[0003] An object of the present invention is to provide a shock absorbing mechanism, a sonar with a shock absorbing mechanism, and a shock absorbing method for sonar, wherein the sonar body of the sonar can be recovered to the cabin cavity of a watertight compartment, so that when the sonar body is not needed to detect the underwater environment, the sonar can effectively protect the sonar body by recovering the sonar body to the cabin cavity of the watertight compartment.

[0004] One object of the present invention is to provide a shock absorbing mechanism, a sonar with a shock absorbing mechanism, and a sonar shock absorbing method, wherein when a submersible or a ship sails to an area that is not suitable for detection using the sonar body, the sonar can effectively protect the sonar body by recovering the sonar body into the cabin of the watertight compartment.

[0005] One object of the present invention is to provide a shock absorbing mechanism, a sonar with a shock absorbing mechanism, and a shock absorbing method for sonar, wherein the watertight compartment and the submersible or the hull are welded, and when the submersible or the hull is sailing at high speed, the sonar can avoid the watertight compartment from being stressed by recovering the sonar body into the cabin cavity of the watertight compartment, thereby avoiding stress on the welding position of the watertight compartment and the submersible or the hull, and further avoiding tearing of the welding position of the watertight compartment and the submersible or the hull, thereby protecting the submersible or the hull.

[0006] An object of the present invention is to provide a shock absorbing mechanism, a sonar with a shock absorbing mechanism, and a shock absorbing method for sonar, wherein the sonar body is installed on the shock absorbing mechanism, and the shock absorbing mechanism is installed on the watertight compartment through a flip cover, when the submersible or the hull vibrates and the vibration is transmitted to the shock absorbing mechanism, the shock absorbing mechanism can effectively weaken the vibration and reduce the influence of the vibration on the sonar body, thereby ensuring the detection accuracy of the sonar body.

[0007] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is to provide a sonar with a shock absorbing mechanism, which comprises: Sonar body; A watertight compartment, wherein the watertight compartment has a compartment cavity and a bottom opening connected to the compartment cavity; A driving mechanism, wherein the driving mechanism is arranged on the top of the watertight compartment; A flip cover, wherein the flip cover has a relative driven end and an assembly end, the driven end of the flip cover is rotatably mounted on one end of the watertight compartment, and the driven end of the flip cover is drivably connected to the driving mechanism, wherein the sonar body is assembled on the assembly end of the flip cover, and the sonar body is driven to rotate by the flip cover, when the flip cover is driven by the driving mechanism to flip in the direction of covering the bottom opening of the watertight compartment, the flip cover allows the sonar body to be accommodated in the cabin cavity of the watertight compartment, and when the flip cover is driven by the driving mechanism to flip in the direction of opening the bottom opening of the watertight compartment, the flip cover allows the sonar body to be suspended below the watertight compartment.

[0008] As a further improvement to the technical solution of the present invention, the driving mechanism includes a hydraulic device and a connecting rod, the rear portion of the hydraulic cylinder of the hydraulic device is rotatably mounted on the watertight compartment, one end of the connecting rod is rotatably mounted on the telescopic rod of the hydraulic device, and the other end of the connecting rod is fixedly mounted on the driven end of the flip cover, so that the driven end of the flip cover is drivably connected to the hydraulic mechanism.

[0009] As a further improvement to the technical solution of the present invention, the sonar further includes a shock absorbing mechanism, which is installed at the assembly end of the flip cover, and the sonar body is installed at the shock absorbing mechanism, so that the shock absorbing mechanism enables the sonar body to be assembled at the assembly end of the flip cover.

[0010] As a further improvement to the technical solution of the present invention, the sonar further includes a sound-transmitting cover, which is installed on the assembly end of the flip cover, and the sound-transmitting cover covers the shock absorbing mechanism and the sonar body in at least one direction.

[0011] As a further improvement to the technical solution of the present invention, the shock absorbing mechanism includes a top plate, a bottom plate and a group of shock absorbing units, the top of each shock absorbing unit is respectively installed on the top plate, and the bottom of each shock absorbing unit is respectively installed on the bottom plate, wherein the top plate of the shock absorbing mechanism is installed on the assembly end of the flip cover, and the sonar body is installed on the bottom plate of the shock absorbing mechanism.

[0012] As a further improvement to the technical solution of the present invention, the height direction of the sonar is consistent with the extension direction of the flip cover, and the extension direction of the top plate of the shock absorbing mechanism is perpendicular to the extension direction of the flip cover.

[0013] According to another aspect of the present invention, the present invention further provides a sonar vibration reduction method, wherein the vibration reduction method comprises the following steps: The bottom plate is suspended below the top plate through a set of shock absorbing units; Mounting the sonar body on the bottom plate, wherein the sonar body is located between the bottom plate and the top plate, and a group of the shock absorbing units surrounds the sonar body; When the vibration is transmitted toward the bottom plate through the shock absorbing unit, the shock absorbing unit is allowed to weaken the vibration to reduce the influence of the vibration on the sonar body.

[0014] As a further improvement to the technical solution of the present invention, when the vibration is transmitted toward the base plate through the shock absorbing unit, first, the low-frequency part of the vibration is weakened by the wire rope shock absorber of the shock absorbing unit, and secondly, the high-frequency part of the vibration is weakened by the rubber shock absorber of the shock absorbing unit.

[0015] According to another aspect of the present invention, the present invention further provides a shock absorbing mechanism for sonar, wherein the shock absorbing mechanism includes a top plate, a bottom plate and a group of shock absorbing units, the top of each shock absorbing unit is respectively installed on the top plate, and the bottom of each shock absorbing unit is respectively installed on the bottom plate, so that the bottom plate is suspended below the top plate by each shock absorbing unit, the sonar body of the sonar can be installed on the bottom plate, and the sonar body is located in the space between the bottom plate and the top plate.

[0016] As a further improvement to the technical solution of the present invention, the number of the shock absorbing units is three, one of the three shock absorbing units is arranged at the rear, which is defined as a rear shock absorbing unit, the other two of the three shock absorbing units are respectively arranged on both sides, which are defined as side shock absorbing units, and the two side shock absorbing units are arranged obliquely and symmetrically, and a straight line passing through the center of gravity of the rear shock absorbing unit and perpendicular to the rear shock absorbing unit, a straight line passing through one of the side shock absorbing units and perpendicular to the side shock absorbing unit, a straight line passing through another side shock absorbing unit and perpendicular to the side shock absorbing unit, and a straight line passing through the center of gravity of the sonar body and consistent with the height direction of the sonar body intersect at one point.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects: 1. The driving mechanism can recover and release the sonar body by driving the flip cover to flip. When the sonar body is recovered and the sonar is in a recovery state, the sonar body is hidden to protect the sonar body and the submersible or hull on which the sonar is installed. When the sonar body is released and the sonar is in a detection state, the sonar body is suspended below the watertight compartment so that the sonar body can detect the underwater environment. 2. The shock absorbing mechanism suspends the bottom plate below the top plate through a group of shock absorbing units, the top plate is mounted on the flip cover, the sonar body is mounted on the bottom plate and the sonar body is located between the bottom plate and the top plate, when the vibration is transmitted to the top plate, the shock absorbing unit can effectively weaken the vibration, reducing the impact of the vibration on the sonar body mounted on the bottom plate; 3. The sound-permeable cover covers the shock-absorbing mechanism and the sonar body in the circumferential direction. In this way, on the one hand, when the sonar is in the detection state, the submersible or the hull will not have "turbulence" near the sonar body during navigation, especially no bubbles will be generated, which is conducive to ensuring the detection accuracy of the sonar body. On the other hand, the sound-permeable cover can prevent the sonar body from being collided or entangled by other objects to ensure the reliability and stability of the sonar. Other beneficial effects of the present invention will be further disclosed and explained in the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of a sonar in a detection state according to a preferred embodiment of the present invention.

[0019] Figure 2 It is a cross-sectional schematic diagram of the sonar according to the above preferred embodiment of the present invention when it is in a detection state.

[0020] Figure 3 It is a three-dimensional schematic diagram of the sonar according to the above preferred embodiment of the present invention when it is in a recovery state.

[0021] Figure 4 It is a three-dimensional schematic diagram of the sonar according to the above preferred embodiment of the present invention.

[0022] Figure 5 It is a stereoscopic schematic diagram of a local position of the sonar according to the above preferred embodiment of the present invention from a viewing angle.

[0023] Figure 6 It is a stereoscopic schematic diagram of another viewing angle of the above-mentioned local position of the sonar according to the above-mentioned preferred embodiment of the present invention.

[0024] Figure 7 It is a three-dimensional schematic diagram from one perspective of an assembly of a shock absorbing mechanism of the sonar and a sonar body according to the above preferred embodiment of the present invention.

[0025] Figure 8 It is a stereoscopic schematic diagram of another viewing angle of the above-mentioned assembly of the sonar according to the above-mentioned preferred embodiment of the present invention.

[0026] Fig. 9 It is a schematic diagram of an exploded view of the above-mentioned assembly of the sonar according to the above-mentioned preferred embodiment of the present invention from one perspective.

[0027] Fig.10 It is a schematic diagram of an exploded view from another perspective of the assembly of the sonar according to the preferred embodiment of the present invention.

[0028] Fig.11 It is a cross-sectional schematic diagram of the above-mentioned assembly of the sonar according to the above-mentioned preferred embodiment of the present invention.

[0029] Fig.12 yes Fig.11 A magnified view of the local location.

[0030] Fig.13 It is a schematic top view of a local position of the above-mentioned assembly of the sonar according to the above-mentioned preferred embodiment of the present invention.

[0031] Fig.14 It is a stereoscopic schematic diagram from one perspective of a shock absorbing unit of the shock absorbing mechanism of the sonar according to the above preferred embodiment of the present invention.

[0032] Fig.15 It is a stereoscopic schematic diagram from another perspective of the shock absorbing unit of the shock absorbing mechanism of the sonar according to the above preferred embodiment of the present invention.

[0033] Fig.16It is a schematic diagram of the decomposition of the shock absorbing unit of the shock absorbing mechanism of the sonar according to the above preferred embodiment of the present invention.

[0034] In the figure: 10. Watertight compartment; 11. Cabin cavity; 12. Bottom opening; 13. Bulkhead perforation; 14. Pivoting arm; 15. Watertight plug; 20. driving mechanism; 21. hydraulic device; 211. hydraulic cylinder; 212. telescopic rod; 22. connecting rod; 221. pivot end; 222. fixed end; 30. Flip cover; 31. Driven end; 32. Assembly end; 33. Assembly through hole; 40. Sonar body; 41. Transmitting cabin; 42. Receiving cabin; 43. Watertight cable; 44. Body threaded hole; 50. Assemble the shaft; 60. Waterproof sealed bearings; 70. shock absorbing mechanism; 71. bottom plate; 711. bottom plate screw hole; 72. top plate; 721. top plate through hole; 722. top plate screw hole; 73. shock absorbing unit; 7301. rear shock absorbing unit; 7302. side shock absorbing unit; 731. assembly frame; 7311. frame threaded hole; 7312. locking arm; 7313. frame through hole; 732. rubber shock absorber; 7321. shock absorber through hole; 7322. lower shock absorbing part; 73221. lower shock absorbing cylinder; 73222. lower insert cylinder; 7323. upper shock absorbing part; 73231. upper shock absorbing cylinder; 73232. upper insert cylinder; 7324. connection Parts; 73241, connecting tube; 73242, connecting ring; 7325, metal gasket; 73251, gasket perforation; 733, bottom adapter plate; 7331, first adapter plate threaded hole; 7332, first adapter plate screw hole; 734, wire rope shock absorber; 7341, bottom extension arm; 73411, bottom arm body perforation; 73412, bottom arm body threaded hole; 7342, top extension arm; 73421, top arm body perforation; 73422, top arm body threaded hole; 7343, wire rope spiral; 735, top adapter plate; 7351, second adapter plate screw hole; 7352, second adapter plate threaded hole; 80. Sound-transmitting cover; 100. Submersible vehicle or hull; 101. Assembly opening; 200. Screw. DETAILED DESCRIPTION

[0035] Before describing in detail any embodiment of the present invention, it should be understood that the present invention is not limited in its application to the construction and arrangement details of the components described below or illustrated in the following figures. The present invention can have other embodiments and can be practiced or carried out in various ways. In addition, it should be understood that the words and terms used here are for descriptive purposes and should not be considered restrictive. The use of "including" or "having" and its variations herein is intended to cover the items and their equivalents and additional items displayed below. Unless otherwise specified or limited, the terms "install", "connect", "support" and "couple" and their variations are widely used and cover direct installation and indirect installation, connection, support and connection. In addition, "connect" and "couple" are not limited to physical or mechanical connections or connections.

[0036] Furthermore, on the first aspect, in the disclosure of the present invention, the orientations or positional relationships indicated by terms such as “longitudinal”, “transverse”, “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside” and “outside” are based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore the above terms cannot be understood as limitations on the present invention; on the second aspect, the term “one” should be understood as “at least one” or “one or more”, that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term “one” cannot be understood as a limitation on the quantity.

[0037] With reference to the accompanying drawings of the present invention Figures 1 to 16 A sonar with a shock absorbing mechanism according to a preferred embodiment of the present invention will be disclosed and explained in the following description, wherein the sonar has a recovery state and a detection state, and the sonar can switch between the recovery state and the detection state, wherein the sonar includes a watertight compartment 10, a driving mechanism 20, a flip cover 30 and a sonar body 40.

[0038] Reference Figures 1 to 5, the watertight compartment 10 has a chamber 11 and a bottom opening 12 connected to the chamber 11. The bottom of the submersible or hull 100 has an assembly opening 101, the shape and size of the edge of the assembly opening 101 of the submersible or hull 100 match the shape and size of the edge of the bottom opening 12 of the watertight compartment 10, the edge of the bottom opening 12 of the watertight compartment 10 and the edge of the assembly opening 101 of the submersible or hull 100 are welded to set the watertight compartment 10 on the submersible or hull 100, and the welding position of the watertight compartment 10 and the submersible or hull 100 is sealed to prevent seawater from entering the submersible or hull 100 through the welding position of the watertight compartment 10 and the submersible or hull 100. It can be understood that the bottom opening 12 of the watertight compartment 10 connects the chamber 11 and the external environment.

[0039] The driving mechanism 20 is arranged on the top of the watertight compartment 10. Preferably, the driving mechanism 20 is not located in the compartment 11 of the watertight compartment 10, but is located above the watertight compartment 10, that is, the driving mechanism 20 is located inside the submersible or hull 100, so that the driving mechanism 20 and seawater can be isolated by the watertight compartment 10. In other words, the driving mechanism 20 does not contact seawater.

[0040] The flip cover 30 has a driven end 31 and an assembly end 32 corresponding to the driven end 31, the driven end 31 of the flip cover 30 is rotatably mounted on one end of the watertight compartment 10, and the driven end 31 of the flip cover 30 is drivably connected to the driving mechanism 20, wherein the sonar body 40 is assembled to the assembly end 32 of the flip cover 30. When the flip cover 30 is driven by the driving mechanism 20 to flip in the direction of covering the bottom opening 12 of the watertight compartment 10, the sonar body 40 is recovered and the sonar is in the recovery state, at which time the sonar body 40 is hidden; when the flip cover 30 is driven by the driving mechanism 20 to flip in the direction of opening the bottom opening 12 of the watertight compartment 10, the sonar body 40 is released and the sonar is in the detection state, at which time the sonar body 40 is suspended below the submersible or hull 100 so that the sonar body 40 can detect the underwater environment.

[0041] That is to say, the sonar body 40 of the sonar of the present invention can be recovered and released as the flip cover 30 is flipped. In this way, on the one hand, when the sonar body 40 is recovered and the sonar is in the recovered state, the sonar body 40 is hidden in the cabin cavity 11 of the watertight compartment 10, thereby avoiding the sonar body 40 from being hit and protecting the sonar body 40 during the navigation of the submersible or hull 100. On the other hand, since the sonar body 40 is The cabin cavity 11 is hidden in the watertight compartment 10, so during the high-speed navigation of the submersible or hull 100, the sonar body 40 will not provide water resistance to avoid the watertight compartment 10 from being stressed, thereby avoiding the welding positions of the watertight compartment 10 and the submersible or hull 100 from being stressed, and further avoiding the welding positions of the watertight compartment 10 and the submersible or hull 100 from being torn to protect the submersible or hull 100, which is crucial to the navigation safety of the submersible or hull 100.

[0042] It should be noted that, since the edge of the bottom opening 12 of the watertight compartment 10 and the edge of the assembly opening 101 of the submersible or hull 100 are welded, the welding position between the watertight compartment 10 and the submersible or hull 100 is relatively fragile. During the high-speed navigation of the submersible or hull 100, if the sonar body 40 is suspended below the submersible or hull 100, the sonar body 40 will inevitably provide water resistance to make the watertight compartment 10 The welding position of the watertight compartment 10 and the submersible or hull 100 is stressed. It can be understood that the higher the navigation speed of the submersible or hull 100, the greater the force on the welding position of the watertight compartment 10 and the submersible or hull 100, and the easier it is to tear the welding position of the watertight compartment 10 and the submersible or hull 100. Once the welding position of the watertight compartment 10 and the submersible or hull 100 is torn, it will inevitably cause water leakage, thereby affecting the safety of the submersible or hull 100. Therefore, when the submersible or hull 100 is sailing at a high speed, in order to avoid the welding position of the watertight compartment 10 and the submersible or hull 100 being stressed, the sonar of the present invention recovers the sonar body 40 by driving the flip cover 30 to flip. It can be understood that after the sonar recovers the sonar body 40 by driving the flip cover 30 to flip, the flip cover 30 covers the bottom opening 12 of the watertight compartment 10 to prevent the sonar body 40 from being collided or entangled by other objects (for example, water plants, kelp), etc., thereby protecting the sonar body 40.

[0043] Continue to refer to the attached Figures 1 to 6One end of the watertight compartment 10 has two symmetrical bulkhead perforations 13, and the bulkhead perforations 13 connect the interior of the submersible or hull 100 and the cabin cavity 11 of the watertight compartment 10. The flip cover 30 is provided with an assembly perforation 33 at the driven end 31. The sonar further includes an assembly shaft 50 and two waterproof sealing bearings 60. The middle part of the assembly shaft 50 is fixedly assembled on the assembly perforation 33 of the flip cover 30. The two waterproof sealing bearings 60 are respectively watertightly mounted on the opposite ends of the assembly shaft 50, and the two waterproof sealing bearings 60 are respectively watertightly installed on the two bulkhead perforations 13 of the watertight compartment 10. In this way, the driven end 31 of the flip cover 30 is rotatably mounted on one end of the watertight compartment 10, and the waterproof sealing bearings 60 are used to prevent water entering the cabin cavity 11 of the watertight compartment 10 from entering the interior of the submersible or hull 100.

[0044] Reference Figure 1 , Figures 3 to 6 The driving mechanism 20 includes a hydraulic device 21 and a connecting rod 22, wherein the hydraulic device 21 includes a hydraulic cylinder 211 and a telescopic rod 212 drivably connected to the hydraulic cylinder 211, the hydraulic cylinder 211 is used to drive the telescopic rod 212 to extend and retract, and the rear portion of the hydraulic cylinder 211 is rotatably mounted on the watertight compartment 10. For example, the top of the watertight compartment 10 may have a pivot arm 14 extending upward, and the rear portion of the hydraulic cylinder 211 and the end of the pivot arm 14 are rotatably mounted. The hydraulic cylinder 211 is installed so that the rear part is rotatably installed on the watertight compartment 10, wherein the connecting rod 22 has a pivot end 221 and a fixed end 222 corresponding to the pivot end 221, the pivot end 221 of the connecting rod 22 is rotatably installed on the telescopic rod 212, and the fixed end 222 of the connecting rod 22 is fixedly installed on one end of the assembly shaft 50. In this way, the driven end 31 of the flip cover 30 is drivably connected to the driving mechanism 20.

[0045] Specifically, in the process of the hydraulic cylinder 211 driving the telescopic rod 212 to extend, the telescopic rod 212 pushes the pivot end 221 of the connecting rod 22 to move forward. At this time, the connecting rod 22 rotates around the pivot end 221 of the connecting rod 22 and the installation axis of the telescopic rod 212. At the same time, the connecting rod 22, the assembly axis 50 and the flip cover 30 rotate relative to the watertight compartment 10 around the central axis of the assembly axis 50, so that the flip cover 30 is flipped in the direction of covering the bottom opening 12 of the watertight compartment 10, so as to recover the sonar body 40 and put the sonar in the recovery state. When the hydraulic cylinder 211 drives the telescopic rod 212 to retract, the telescopic rod 212 pulls the pivot end 221 of the connecting rod 22 to move backwards, and the connecting rod 22 rotates around the pivot end 221 of the connecting rod 22 and the mounting axis of the telescopic rod 212. At the same time, the connecting rod 22, the assembly axis 50 and the flip cover 30 rotate relative to the watertight compartment 10 around the central axis of the assembly axis 50, so that the flip cover 30 flips toward the direction of opening the bottom opening 12 of the watertight compartment 10 to release the sonar body 40 and put the sonar in the detection state. It can be understood that when the hydraulic cylinder 211 drives the telescopic rod 212 to extend and retract, the rear part of the hydraulic cylinder 211 rotates relative to the pivot arm 14 of the watertight compartment 10.

[0046] In addition, the watertight compartment 10 is provided with a watertight plug 15, the sonar body 40 includes a transmitting compartment 41, a receiving compartment 42 and a watertight cable 43, the transmitting compartment 41 includes a transmitting transducer for generating and transmitting acoustic signals, the receiving compartment 42 includes a receiving transducer for receiving and processing the reflected acoustic signals, one end of the watertight cable 43 is arranged in the receiving compartment 42 and connected to the circuits of the transmitting compartment 41 and the receiving compartment 42, and the other end is connected to the watertight plug 15 of the watertight compartment 10. It can be understood that the watertight plug 15 of the watertight compartment 10 can be further connected to the control unit of the submersible or hull 100, so as to realize power supply, data transmission, etc. between the sonar body 40 and the submersible or hull 100 through the watertight cable 43.

[0047] Reference Figures 5 to 13The sonar further includes a shock absorbing mechanism 70, which is installed at the assembly end 32 of the flip cover 30, and the sonar body 40 is installed at the shock absorbing mechanism 70, so that the shock absorbing mechanism 70 enables the sonar body 40 to be assembled at the assembly end 32 of the flip cover 30. When the submersible or the hull 100 is vibrated by collision or other reasons, the vibration can be weakened by the shock absorbing mechanism 70 after being transmitted to the flip cover 30, so as to reduce the influence of the vibration on the sonar body 40, thereby ensuring the detection accuracy of the sonar body 40.

[0048] Specifically, the shock absorbing mechanism 70 includes a bottom plate 71, a top plate 72, and a group of shock absorbing units 73, the bottom of each shock absorbing unit 73 is respectively mounted on the bottom plate 71, and the top of each shock absorbing unit 73 is respectively mounted on the top plate 72, so that the bottom plate 71 is suspended below the top plate 72 by each shock absorbing unit 73, wherein the sonar body 40 can be mounted on the bottom plate 71, and the sonar body 40 is located in the space between the bottom plate 71 and the top plate 72. The top plate 72 of the shock absorbing mechanism 70 is mounted on the flip cover 30. When the submersible or hull 100 vibrates, the vibration will be directly transmitted to the top plate 72 through the watertight compartment 10 and the flip cover 30, causing the top plate 72 to vibrate. The damping units 73 cooperate with each other to effectively weaken the vibration and prevent the vibration from being transmitted toward the bottom plate 71, thereby reducing the impact of the vibration on the sonar body 40 installed on the bottom plate 71, so as to ensure the detection accuracy of the sonar body 40. Preferably, the height direction of the sonar body 40 is consistent with the extension direction of the flip cover 30, and the extension direction of the top plate 72 of the damping mechanism 70 is perpendicular to the extension direction of the flip cover 30. Preferably, the top plate 72 has a top plate through hole 721, and the watertight cable 43 of the sonar body 40 can extend to the top of the top plate 72 after passing through the top plate through hole 721 of the top plate 72 and connect with the watertight plug 15 of the watertight compartment 10.

[0049] In a specific example of the sonar of the present invention, the sonar body 40 is mounted on the bottom plate 71 through at least one screw 200. Specifically, the bottom plate 71 has a series of bottom plate screw holes 711, and the sonar body 40 has at least one body threaded hole 44. After the sonar body 40 is placed above the bottom plate 71, the position of the body threaded hole 44 of the sonar body 40 corresponds to the position of the bottom plate screw hole 711 in the middle of the bottom plate 71, and the threaded end of the screw 200 extends to the body threaded hole 44 of the sonar body 40 after passing through the bottom plate screw hole 711 of the bottom plate 71, and the threaded end of the screw 200 is screwed to the sonar body 40, so that the sonar body 40 is mounted on the bottom plate 71 through the screw 200. Preferably, the sonar body 40 is mounted on the bottom plate 71 via the two screws 200 to prevent the sonar body 40 from rotating relative to the bottom plate 71 .

[0050] In a specific example of the sonar of the present invention, the number of the shock absorbing units 73 is three, and the three shock absorbing units 73 are respectively a rear shock absorbing unit 7301 and two side shock absorbing units 7302, the rear shock absorbing unit 7301 is arranged at the rear, and the two side shock absorbing units 7302 are obliquely and symmetrically arranged on both sides, wherein a straight line L1 passing through the center of gravity of the rear shock absorbing unit 7301 and perpendicular to the rear shock absorbing unit 7301, passing through one of the side shock absorbing units 7302, and the rear shock absorbing unit 7301 is perpendicular to the rear shock absorbing unit 7301. A straight line L2 passing through the center of gravity of the other side shock absorbing unit 7302 and perpendicular to the side shock absorbing unit 7302, a straight line L3 passing through the center of gravity of the other side shock absorbing unit 7302 and perpendicular to the side shock absorbing unit 7302, and a straight line passing through the center of gravity of the sonar body 40 and consistent with the height direction of the sonar body 40 intersect at one point. In this way, a group of shock absorbing units 73 can ensure the balanced force of the sonar body 40 on the basis of ensuring the weakening effect of the vibration. See attached Fig.13 .

[0051] Reference Figures 7 to 16Each of the shock absorbing units 73 includes an assembly frame 731, at least one rubber shock absorber 732, a bottom adapter plate 733, a wire rope shock absorber 734 and a top adapter plate 735, wherein the bottom of the assembly frame 731 is installed on the bottom plate 71, wherein the bottom adapter plate 733 is installed on the top of the assembly frame 731 through the rubber shock absorber 732, wherein the bottom of the wire rope shock absorber 734 is installed on the bottom adapter plate 733 and the top is installed on the bottom of the top adapter plate 735, wherein the top of the top adapter plate 735 is installed on the top plate 72, in this way, the bottom of the shock absorbing unit 73 is installed on the bottom plate 71, and the top of the shock absorbing unit 73 is installed on the top plate 72, so that each of the shock absorbing units 73 is used to suspend the bottom plate 71 below the top plate 72.

[0052] That is to say, in the sonar of the present invention, the rubber shock absorber 732 isolates the assembly frame 731 and the bottom adapter plate 733, and the rubber shock absorber 732 prevents the assembly frame 731 and the bottom adapter plate 733 from directly contacting each other, and the wire rope shock absorber 734 isolates the bottom adapter plate 733 and the top adapter plate 735, and the wire rope shock absorber 734 prevents the bottom adapter plate 733 and the top adapter plate 735 from directly contacting each other.

[0053] In a specific example of the sonar of the present invention, the rubber shock absorber 732 is not directly mounted on the wire rope shock absorber 734, but a bottom adapter plate 733 is provided between the rubber shock absorber 732 and the wire rope shock absorber 734, and the top of the wire rope shock absorber 734 is not directly mounted on the top plate 72, but a top adapter plate 735 is provided between the wire rope shock absorber 734 and the top plate 72. In this way, first, there is It is beneficial to improve the effect of the wire rope shock absorber 734 in weakening the low-frequency part of the vibration transmitted to the top plate 72 and the effect of the rubber shock absorber 732 in weakening the high-frequency part of the vibration transmitted to the top plate 72, so as to improve the shock absorbing effect of the shock absorbing mechanism 70. Secondly, the bottom adapter plate 733 and the top adapter plate 735 can increase the distance between the bottom plate 71 and the top plate 72, so that the distance between the bottom plate 71 and the top plate 72 meets the height requirement of the sonar body 40.

[0054] It is understandable that the sonar bodies 40 of different specifications have different height dimensions, resulting in different requirements for the distance between the bottom plate 71 and the top plate 72 for the sonar bodies 40 of different specifications. By respectively arranging the bottom adapter plate 733 and the top adapter plate 735 at the bottom and the top of the wire rope shock absorber 734, when the rubber shock absorber 732 and the wire rope shock absorber 734 are used as standard parts, it is only necessary to replace the bottom adapter plate 733 and the top adapter plate 735 with different thickness dimensions according to the height dimension of the sonar body 40. It is understandable that in order to meet the height requirements of the sonar body 40, the shock absorbing mechanism 70 can also replace the assembly frame 731 with different height dimensions.

[0055] Reference Fig.12 , Figures 14 to 16 The bottom of the assembly frame 731 has at least one frame body threaded hole 7311. After the assembly frame 731 is placed on the edge of the bottom plate 71, the position of the frame body threaded hole 7311 of the assembly frame 731 corresponds to the position of the bottom plate screw hole 711 at the edge of the bottom plate 71. The threaded end of the screw rod 200 extends to the frame body threaded hole 7311 of the assembly frame 731 after passing through the bottom plate screw hole 711 of the bottom plate 71, and the threaded end of the screw rod 200 is screwed to the assembly frame 731 to install the bottom of the assembly frame 731 on the bottom plate 71. In other words, the screw rod 200 is used to lock the assembly frame 731 to the bottom plate 71.

[0056] Preferably, in the attached Figures 1 to 16 In this specific example of the sonar shown, the bottom of the assembly frame 731 has four frame threaded holes 7311, and accordingly, the threaded ends of the four screw rods 200 extend to the four frame threaded holes 7311 of the assembly frame 731 after respectively passing through the four bottom plate screw holes 711 located at the edge position of the bottom plate 71, and the threaded ends of the screw rods 200 are screwed to the assembly frame 731, so that the assembly frame 731 is reliably mounted on the bottom plate 71.

[0057] More preferably, the four frame threaded holes 7311 at the bottom of the assembly frame 731 are arranged in two rows, and each row has two frame threaded holes 7311. Optionally, in other examples of the sonar of the present invention, the number of the frame threaded holes 7311 at the bottom of the assembly frame 731 may be greater.

[0058] Continue to refer to the attached Fig.12 , Figures 14 to 16The top of the assembly frame 731 has a locking arm 7312 and two frame body through holes 7313 on opposite sides, and each locking arm 7312 of the assembly frame 731 has a frame body through hole 7313. In other words, the assembly frame 731 is in a "T" shape when viewed from the side.

[0059] There are two rubber shock absorbers 732, the middle part of each rubber shock absorber 732 is respectively installed on each frame through hole 7313 of the assembly frame 731, and the opposite ends of the rubber shock absorber 732 respectively protrude from the bottom and top of the locking arm 7312 of the assembly frame 731, wherein the rubber shock absorber 732 has a shock absorber through hole 7321, which runs through the bottom and top of the rubber shock absorber 732. The bottom adapter plate 733 has two first adapter plate threaded holes 7331. After the bottom adapter plate 733 is supported above the two rubber shock absorbers 732, the position of each of the first adapter plate threaded holes 7331 of the bottom adapter plate 733 corresponds to the position of the shock absorber through hole 7321 of each rubber shock absorber 732. The threaded ends of the two screw rods 200 extend to the first adapter plate threaded holes 7331 of the bottom adapter plate 733 after passing through the shock absorber through holes 7321 of the rubber shock absorbers 732 respectively, and the threaded ends of the screw rods 200 are screwed to the bottom adapter plate 733. In this way, the bottom adapter plate 733 is installed on the top of the assembly frame 731 through the rubber shock absorber 732, and the rubber shock absorber 732 isolates the screw rod 200 and the assembly frame 731 to effectively weaken the high-frequency part of the vibration.

[0060] Continue to refer to the attached Fig.12 , Figures 14 to 16 The rubber shock absorber 732 includes a lower shock absorbing part 7322 and an upper shock absorbing part 7323, wherein the lower shock absorbing part 7322 includes a lower shock absorbing tube 73221 and a lower inserting tube 73222, the lower inserting tube 73222 extends upward from the lower shock absorbing tube 73221, the outer diameter of the lower inserting tube 73222 is smaller than the outer diameter of the lower shock absorbing tube 73221, and the outer diameter of the lower inserting tube 73222 is equal to the outer diameter of the assembly frame 731. The inner diameter size of the frame through hole 7313 is consistent, wherein the upper shock absorbing part 7323 includes an upper shock absorbing tube 73231 and an upper insertion tube 73232, the upper insertion tube 73232 extends downward from the upper shock absorbing tube 73231, the outer diameter size of the upper insertion tube 73232 is smaller than the outer diameter size of the upper shock absorbing tube 73231, and the outer diameter size of the upper insertion tube 73232 is consistent with the inner diameter size of the frame through hole 7313 of the assembly frame 731.

[0061] When assembling the shock absorbing unit 73, the lower insertion tube 73222 of the lower shock absorbing part 7322 is inserted from bottom to top into the frame body through hole 7313 of the assembly frame 731, the lower shock absorbing tube 73221 of the lower shock absorbing part 7322 is stacked on the bottom of the locking arm 7312 of the assembly frame 731, and the upper insertion tube 73232 of the upper shock absorbing part 7323 is inserted from top to bottom into the assembly frame 731. The frame through hole 7313, the upper shock absorbing tube 73231 of the upper shock absorbing part 7323 is stacked on the top of the locking arm 7312 of the assembly frame 731, in this way, the middle part of the rubber shock absorber 732 is installed in the frame through hole 7313 of the assembly frame 731, and the opposite ends of the rubber shock absorber 732 respectively protrude from the bottom and the top of the locking arm 7312 of the assembly frame 731. When the opposite two ends of the bottom adapter plate 733 are respectively supported by the upper shock absorbing tubes 73231 of the upper shock absorbing parts 7323 of the two rubber shock absorbers 732, and the positions of the first adapter plate threaded holes 7331 of the bottom adapter plate 733 correspond to the positions of the shock absorber through holes 7321 of the rubber shock absorbers 732, the threaded ends of the screw rods 200 extend to the first adapter plate threaded holes 7331 of the bottom adapter plate 733 after respectively passing through the shock absorber through holes 7321 of the rubber shock absorbers 732, and the threaded ends of the screw rods 200 are screwed onto the bottom adapter plate 733 so that the bottom adapter plate 733 is installed on the top of the assembly frame 731 through the rubber shock absorber 732.

[0062] Reference Fig.12 The lower shock absorbing part 7322 isolates the screw rod 200 and the locking arm 7312 of the assembly frame 731, and the upper shock absorbing part 7323 not only isolates the screw rod 200 and the locking arm 7312 of the assembly frame 731, but also isolates the bottom adapter plate 733 and the locking arm 7312 of the assembly frame 731. In this way, the rubber shock absorber 732 can effectively weaken the high-frequency part of the vibration, and reduce the influence of the high-frequency part of the vibration on the bottom plate 71 and the sonar body 40 installed on the bottom plate 71.

[0063] Continue to refer to the attached Fig.12 , Figures 14 to 16The rubber shock absorber 732 further includes a metal connector 7324 and a metal gasket 7325, wherein the connector 7324 includes a connecting tube 73241 and a connecting ring 73242, the connecting ring 73242 extends outward from the bottom of the connecting tube 73241, the outer diameter of the connecting tube 73241 is consistent with the inner diameter of the shock absorber through hole 7321 of the rubber shock absorber 732, the outer diameter of the connecting ring 73242 is larger than the inner diameter of the shock absorber through hole 7321 of the rubber shock absorber 732, wherein the metal gasket 7325 has a gasket through hole 73251, the metal gasket 7325 is stacked on the upper shock absorber tube 73231 of the upper shock absorber part 7323, and the gasket through hole 73251 of the metal gasket 7325 corresponds to the hollow part of the upper shock absorber part 7323.

[0064] The top of the connecting tube 73241 of the connecting member 7324 passes through the hollow part of the lower shock absorbing part 7322 and the hollow part of the upper shock absorbing part 7323 in sequence, so that the top of the connecting tube 73241 passes through the shock absorber through hole 7321 of the rubber shock absorber 732, and the top of the connecting tube 73241 further passes through the gasket through hole 73251 of the metal gasket 7325. The lower shock absorbing cylinder 73221 of the lower shock absorbing part 7322 is stacked on the lower shock absorbing part 7322, and the threaded end of the screw rod 200 extends to the first adapter plate threaded hole 7331 of the bottom adapter plate 733 after passing through the connecting cylinder 73241 and the gasket through hole 73251 of the metal gasket 7325, and the threaded end of the screw rod 200 is screwed to the bottom adapter plate 733. In this way, firstly, even if the lower shock absorbing part 7322 and After the upper shock absorbing part 7323 ages, the connecting piece 7324 can still ensure that the lower shock absorbing part 7322 and the upper shock absorbing part 7323 will not fall off. Secondly, the connecting piece 7324 can isolate the lower shock absorbing part 7322 and the screw 200 and isolate the upper shock absorbing part 7323 and the screw 200, so that the lower shock absorbing part 7322 and the upper shock absorbing part 7323 made of rubber material will not be affected by the screw 200. The threaded end is cut to protect the lower shock absorbing part 7322 and the upper shock absorbing part 7323. Thirdly, in the process of screwing the screw rod 200 to the bottom adapter plate 733, the connecting piece 7324 and the metal gasket 7325 can prevent the lower shock absorbing part 7322 and the upper shock absorbing part 7323 from being over-compressed and causing breakage, thereby ensuring that the lower shock absorbing part 7322 and the upper shock absorbing part 7323 have good shock absorbing effect.

[0065] That is to say, the connecting piece 7324 and the metal gasket 7325 cooperate with each other, which can not only prevent the lower shock absorbing part 7322 and the upper shock absorbing part 7323 from being over-compressed, but also control the compression amount of the lower shock absorbing part 7322 and the upper shock absorbing part 7323, thereby ensuring that the lower shock absorbing part 7322 and the upper shock absorbing part 7323 have good shock absorbing effect.

[0066] Reference Fig.12 , Figures 14 to 16 The wire rope shock absorber 734 includes a bottom extension arm 7341, a top extension arm 7342 and a wire rope spiral 7343. The bottom extension arm 7341 has a row of bottom arm body through holes 73411, and the top extension arm 7342 has a row of top arm body through holes 73421. The bottom extension arm 7341 and the top extension arm 7342 are symmetrically and spaced apart from each other. The position of the hole 73411 corresponds one to one with the position of each of the top arm body through holes 73421 of the top extension arm 7342, and the wire rope spiral 7343 crosses through each of the bottom arm body through holes 73411 of the bottom extension arm 7341 and each of the top arm body through holes 73421 of the top extension arm 7342 in sequence, so that the bottom extension arm 7341 and the top extension arm 7342 are connected by the wire rope spiral 7343. Since the wire rope spiral 7343 extends spirally between the bottom extension arm 7341 and the top extension arm 7342, the wire rope spiral 7343 is elastic. After the bottom extension arm 7341 and the top extension arm 7342 are pressed and moved closer to each other, the wire rope spiral 7343 is deformed and accumulates elastic potential energy. After the pressure applied to the bottom extension arm 7341 and the top extension arm 7342 is removed, the wire rope spiral 7343 returns to its original state and the bottom extension arm 7341 and the top extension arm 7342 are reset.

[0067] The bottom extension arm 7341 of the wire rope shock absorber 734 is installed on the bottom adapter plate 733, for example, the bottom extension arm 7341 is installed on the bottom adapter plate 733 through the screw 200, and the top extension arm 7342 of the wire rope shock absorber 734 is installed on the top adapter plate 735, for example, the top extension arm 7342 is installed on the top adapter plate 735 through the screw 200, so that the wire rope shock absorber 734 is used to connect the bottom adapter plate 733 and the top adapter plate 735, and the wire rope shock absorber 734 is used to weaken the low-frequency part of the vibration.

[0068] Preferably, the specifications of the wire rope shock absorbers 734 of the two side shock absorbing units 7302 are the same, and the wire rope shock absorbers 734 of the two side shock absorbing units 7302 are in a natural state, the specifications of the wire rope shock absorber 734 of the rear shock absorbing unit 7301 are different from those of the wire rope shock absorber 734 of the side shock absorbing units 7302, and the wire rope shock absorber 734 of the rear shock absorbing unit 7301 is in a compressed state. In this way, it is helpful to ensure that the wire rope shock absorber 734 passing through the rear shock absorbing unit 7301 is compressed. A straight line L1 passing through the center of gravity of the rear shock absorbing unit 7301 and perpendicular to the rear shock absorbing unit 7301, a straight line L2 passing through the center of gravity of one side shock absorbing unit 7302 and perpendicular to the side shock absorbing unit 7302, a straight line L3 passing through the center of gravity of another side shock absorbing unit 7302 and perpendicular to the side shock absorbing unit 7302, and a straight line passing through the center of gravity of the sonar body 40 and consistent with the height direction of the sonar body 40 intersect at one point, thereby avoiding the "head-down" problem of the sonar body 40.

[0069] In this specific example of the sonar of the present invention, the opposite ends of the bottom adapter plate 733 respectively have a first adapter plate screw hole 7332, and the opposite ends of the bottom extension arm 7341 of the wire rope shock absorber 734 respectively have a bottom arm body threaded hole 73412. After the bottom extension arm 7341 is stacked on the top of the bottom adapter plate 733, the positions of the bottom arm body threaded holes 73412 of the bottom extension arm 7341 and the bottom adapter plate 73 3, the threaded ends of the screw rods 200 extend to the bottom arm body threaded holes 73412 of the bottom extension arm 7341 after respectively passing through the first adapter plate screw holes 7332 of the bottom adapter plate 733, and the threaded ends of the screw rods 200 are screwed on the bottom extension arm 7341, so that the bottom extension arm 7341 is installed on the bottom adapter plate 733 through the screw rods 200.

[0070] In this specific example of the sonar of the present invention, the top adapter plate 735 has a second adapter plate screw hole 7351 at the opposite ends, and the top extension arm 7342 of the wire rope shock absorber 734 has a top arm body threaded hole 73422 at the opposite ends. After the top adapter plate 735 is stacked on the top extension arm 7342, the position of each second adapter plate screw hole 7351 of the top adapter plate 735 and the top extension arm 734 2, the threaded ends of the screw rods 200 extend to the threaded holes 73422 of the top arm body of the top extension arm 7342 after respectively passing through the screw holes 7351 of the second adapter plate of the top adapter plate 735, and the threaded ends of the screw rods 200 are screwed on the top extension arm 7342, so that the top extension arm 7342 is installed on the top adapter plate 735 through the screw rods 200.

[0071] Continue to refer to the attached Fig.12 , Figures 14 to 16 , the top adapter plate 735 is mounted on the top plate 72 through the screw 200. Specifically, the top plate 72 has at least one top plate screw hole 722, and the top adapter plate 735 has at least one second adapter plate threaded hole 7352. The position of the top plate screw hole 722 of the top plate 72 corresponds to the position of the second adapter plate threaded hole 7352 of the top adapter plate 735. The threaded end of the screw 200 extends to the second adapter plate threaded hole 7352 of the top adapter plate 735 after passing through the top plate screw hole 722 of the top plate 72, and the threaded end of the screw 200 is screwed to the top adapter plate 735, so that the top adapter plate 735 is mounted on the top plate 72 through the screw 200.

[0072] Preferably, the top adapter plate 735 is mounted on the top plate 72 through two rows of screw rods 200, so as to facilitate the uniform force of the wire rope shock absorber 734 and ensure the shock absorption effect of the shock absorption unit 73. The number of the screw rods 200 in each row is not limited in the sonar of the present invention. Figures 1 to 16 In the specific example of the sonar of the present invention shown, the number of the screw rods 200 in each column is four, that is, eight screw rods 200 are used to install the top plate 72 and the top adapter plate 735 .

[0073] Continue to refer to the attached Figure 1 and Figure 4The sonar further includes a sound-transmitting cover 80, which is installed on the assembly end 32 of the flip cover 30. For example, the sound-transmitting cover 80 is installed on the flip cover 30 through a group of screws 200, wherein the sound-transmitting cover 80 covers the shock absorbing mechanism 70 and the sonar body 40 in at least one direction, for example, the sound-transmitting cover 80 covers the shock absorbing mechanism 70 and the sonar body 40 in the circumferential direction. In this way, on the one hand, when the sonar is in the detection state, the submersible or hull 100 will not have "turbulence" near the sonar body 40 during navigation, especially no bubbles will be generated, which is beneficial to ensure the detection accuracy of the sonar body 40. On the other hand, the sound-transmitting cover 80 can prevent the sonar body 40 from being collided or entangled by other objects (for example, water plants, kelp), etc.

[0074] According to another aspect of the present invention, the present invention further provides a sonar vibration reduction method, wherein the vibration reduction method comprises the following steps: The bottom plate 71 is suspended below the top plate 72 through a set of shock absorbing units 73; The sonar body 40 is mounted on the bottom plate 71, wherein the sonar body 40 is located between the bottom plate 71 and the top plate 72, and a group of the shock absorbing units 73 surrounds the sonar body 40; When the vibration is transmitted toward the bottom plate 71 through the shock absorbing unit 73 , the shock absorbing unit 73 is allowed to weaken the vibration to reduce the influence of the vibration on the sonar body 40 .

[0075] Preferably, when the vibration is transmitted toward the bottom plate 71 through the shock absorbing unit 73, first, the low-frequency part of the vibration is weakened by the wire rope shock absorber 734 of the shock absorbing unit 73, and secondly, the high-frequency part of the vibration is weakened by the rubber shock absorber 732 of the shock absorbing unit 73.

[0076] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be modified or altered in any way without departing from the principles.

Claims

1. A sonar with a shock absorbing mechanism, characterized in that: include: Sonar body; A watertight compartment, wherein the watertight compartment has a compartment cavity and a bottom opening connected to the compartment cavity; A driving mechanism, wherein the driving mechanism is arranged on the top of the watertight compartment; A flip cover, wherein the flip cover has a relative driven end and an assembly end, the driven end of the flip cover is rotatably mounted on one end of the watertight compartment, and the driven end of the flip cover is drivably connected to the driving mechanism, wherein the sonar body is assembled on the assembly end of the flip cover, and the sonar body is driven to rotate by the flip cover, when the flip cover is driven by the driving mechanism to flip in the direction of covering the bottom opening of the watertight compartment, the flip cover allows the sonar body to be accommodated in the cabin cavity of the watertight compartment, and when the flip cover is driven by the driving mechanism to flip in the direction of opening the bottom opening of the watertight compartment, the flip cover allows the sonar body to be suspended below the watertight compartment.

2. The sonar according to claim 1, characterized in that: The driving mechanism includes a hydraulic device and a connecting rod. The rear portion of the hydraulic cylinder of the hydraulic device is rotatably mounted on the watertight compartment, one end of the connecting rod is rotatably mounted on the telescopic rod of the hydraulic device, and the other end of the connecting rod is fixedly mounted on the driven end of the flip cover, so that the driven end of the flip cover is drivably connected to the hydraulic mechanism.

3. The sonar according to claim 1 or 2, characterized in that: The sonar further comprises a shock absorbing mechanism, which is mounted on the assembly end of the flip cover, and the sonar body is mounted on the shock absorbing mechanism, so that the shock absorbing mechanism enables the sonar body to be assembled on the assembly end of the flip cover.

4. The sonar according to claim 3, characterized in that: The sonar further includes a sound-transmitting cover, which is installed on the assembly end of the flip cover, and the sound-transmitting cover covers the shock absorbing mechanism and the sonar body in at least one direction.

5. The sonar according to claim 3, characterized in that: The shock absorbing mechanism includes a top plate, a bottom plate and a group of shock absorbing units, the top of each shock absorbing unit is respectively installed on the top plate, and the bottom of each shock absorbing unit is respectively installed on the bottom plate, wherein the top plate of the shock absorbing mechanism is installed on the assembly end of the flip cover, and the sonar body is installed on the bottom plate of the shock absorbing mechanism.

6. The sonar according to claim 5, characterized in that The height direction of the sonar is consistent with the extension direction of the flip cover, and the extension direction of the top plate of the shock absorbing mechanism is perpendicular to the extension direction of the flip cover.

7. A sonar vibration reduction method, characterized in that: The shock absorption method comprises the following steps: The bottom plate is suspended below the top plate through a set of shock absorbing units; Mounting the sonar body on the bottom plate, wherein the sonar body is located between the bottom plate and the top plate, and a group of the shock absorbing units surrounds the sonar body; When the vibration is transmitted toward the bottom plate through the shock absorbing unit, the shock absorbing unit is allowed to weaken the vibration to reduce the influence of the vibration on the sonar body.

8. The vibration reduction method according to claim 7, characterized in that: When the vibration is transmitted toward the bottom plate through the shock absorbing unit, firstly, the low-frequency part of the vibration is weakened by the wire rope shock absorber of the shock absorbing unit, and secondly, the high-frequency part of the vibration is weakened by the rubber shock absorber of the shock absorbing unit.

9. A shock absorbing mechanism for sonar, characterized in that: It includes a top plate, a bottom plate and a group of shock absorbing units, the top of each shock absorbing unit is respectively installed on the top plate, the bottom of each shock absorbing unit is respectively installed on the bottom plate, so that the bottom plate is suspended below the top plate by each shock absorbing unit, the sonar body of the sonar can be installed on the bottom plate, and the sonar body is located in the space between the bottom plate and the top plate.

10. The shock absorbing mechanism according to claim 9, characterized in that: The number of the shock absorbing units is three, one of the three shock absorbing units is arranged at the rear, which is defined as a rear shock absorbing unit, the other two of the three shock absorbing units are respectively arranged at the two sides, which are defined as side shock absorbing units, and the two side shock absorbing units are arranged obliquely and symmetrically, and a straight line passing through the center of gravity of the rear shock absorbing unit and perpendicular to the rear shock absorbing unit, a straight line passing through one of the side shock absorbing units and perpendicular to the side shock absorbing unit, a straight line passing through another side shock absorbing unit and perpendicular to the side shock absorbing unit, and a straight line passing through the center of gravity of the sonar body and consistent with the height direction of the sonar body intersect at one point.

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