Sonar and disposable shock-absorbing mechanism

Abstract

The present invention discloses a sonar and a disposable shock-absorbing mechanism, which relates to the technical field of underwater detection. The sonar includes a watertight cabin, a lifting assembly, a transmission assembly, a connecting rod assembly, a shock-absorbing platform, and a sonar body disposed on the shock-absorbing platform. The lifting assembly includes a receiving cylinder and a lifting rod telescopically disposed in the receiving cylinder. The bottom of the receiving cylinder is installed above the watertight cabin. The lifting rod extends through the top channel of the watertight cabin into the cabin cavity. The shock-absorbing platform is disposed on the lifting rod. Opposite ends of the transmission shaft of the transmission assembly are respectively rotatably installed in the perforations of the respective cabin walls of the watertight cabin. The connecting rod assembly includes an upper connecting rod and a lower connecting rod rotatably installed. The end of the upper connecting rod facing away from the lower connecting rod is fixedly installed on the transmission shaft. The end of the lower connecting rod facing away from the upper connecting rod is rotatably installed on the shock-absorbing platform. By rotating the transmission shaft, the sonar can be switched between the recovery state and the detection state.

Description

Technical Field

[0001] The present invention relates to the technical field of underwater detection, and particularly relates to a sonar and a disposable shock-absorbing mechanism. Background Art

[0002] In a Chinese patent application for invention with the application publication number CN118182710A, an auxiliary mechanism for an underwater ultrasonic detection device is disclosed, which can realize the lifting of a sonar. The specific solution adopted by this auxiliary mechanism is as follows: The electric cylinder has a hollow annular space, and the output cylinder of the electric cylinder is located in the hollow annular space. The lower end of the output cylinder is connected to a platform through a hinge that only allows rotation around the y-axis. The output cylinder of the electric cylinder has an anti-rotation function. The output cylinder has a hollow annular space, and a small electric cylinder is installed in this hollow annular space. The small electric cylinder is connected to the platform through a hinge. When the platform is in the initial horizontal position, the axis of the small electric cylinder is parallel to the axis of the electric cylinder. The distance between the two hinges is S, and the connection line between the two hinges is parallel to the x-axis. By changing the length dimension h of the small electric cylinder, the pitch angle of the sonar device can be changed. This is the basic principle of using two electric cylinders to achieve the linear movement and rotation of the platform for installing the sonar device, that is, using the electric cylinder to achieve linear movement and the small electric cylinder to achieve pitch rotation. A cabin is fixedly installed at the lower end of the hollow annular space of the electric cylinder. The cabin door is hinged to the lower opening of the cabin. The cabin door is used to close the lower opening of the cabin. The lower end of the output cylinder of the electric cylinder extends into the cabin and is installed with a platform. A sonar device is fixedly installed on the lower side of the platform. The upper end of the connecting rod is fixedly connected to the end of the output cylinder through a hinge, and the lower end of the connecting rod is installed in the middle of the cabin door through a hinge. When the output cylinder extends downward, the output cylinder pushes the connecting rod downward and rotates around the hinge at the same time. Thus, the connecting rod pushes the cabin door to rotate around the hinge, thereby pushing the cabin door open and making the cabin open. The output cylinder extends out of the cabin, and the sonar device installed under the platform at the lower end of the output cylinder is exposed. When the output cylinder retracts upward, the output cylinder pulls the connecting rod upward and rotates around the hinge at the same time. Thus, the connecting rod pulls the cabin door to rotate around the hinge, thereby pulling the cabin door back and making the cabin closed. The output cylinder retracts into the cabin, and the sonar device installed under the platform at the lower end of the output cylinder is enclosed in the cabin by the cabin door. The defects of the prior art are that the lifting mechanism is complex and the reliability is poor. Moreover, the prior art cannot provide a shock-absorbing function for the sonar device, and the sonar device is easily affected by vibration, resulting in low detection accuracy. Summary of the Invention

[0003] An object of the present invention is to provide a sonar and a disposable shock-absorbing mechanism, wherein the sonar has a simple structure and higher reliability.

[0004] An object of the present invention is to provide a sonar and a disposable shock-absorbing mechanism, wherein a shock-absorbing platform of the sonar can provide a shock-absorbing function for a sonar body to reduce the influence of vibration on the sonar body, thereby ensuring the detection accuracy of the sonar body.

[0005] An object of the present invention is to provide a sonar and a disposable shock-absorbing mechanism, wherein when the sonar is subjected to a large force in the lateral direction, a lifting rod of a lifting assembly of the sonar and an upper connecting rod or a lower connecting rod of a connecting rod assembly can break to discard the shock-absorbing platform and the sonar body, so as to avoid the force on the welding position of a submersible or a hull and a watertight cabin, and further avoid the tearing of the welding position of the submersible or the hull and the watertight cabin to protect the submersible or the hull.

[0006] To achieve the above object, the technical solution adopted by the present invention is to provide a sonar, which includes:

[0007] A shock-absorbing platform;

[0008] A sonar body, wherein the sonar body is disposed on the shock-absorbing platform;

[0009] A watertight cabin, wherein the watertight cabin has a cabin cavity and a bottom opening, a top passage and two pairs of cabin wall perforations respectively communicating with the cabin cavity;

[0010] A lifting assembly, wherein the lifting assembly includes a receiving cylinder and a lifting rod telescopically disposed in the receiving cylinder, the bottom of the receiving cylinder is installed above the watertight cabin, and the lifting rod extends through the top passage of the watertight cabin to the cabin cavity of the watertight cabin, wherein the shock-absorbing platform is disposed on the lifting rod;

[0011] A transmission assembly, wherein the transmission assembly includes two transmission shafts, opposite ends of one of the transmission shafts are respectively rotatably installed in a pair of the cabin wall perforations of the watertight cabin, and opposite ends of the other transmission shaft are respectively rotatably installed in the other pair of the cabin wall perforations of the watertight cabin;

[0012] Two connecting rod assemblies, wherein each of the connecting rod assemblies includes an upper connecting rod and a lower connecting rod, one end of the upper connecting rod and one end of the lower connecting rod are rotatably installed, the other end of the upper connecting rod is fixedly installed on the transmission shaft, and the other end of the lower connecting rod is rotatably installed on the shock-absorbing platform.

[0013] As a further improvement to the technical solution of the present invention, the lifting rod has a first rod body weak point.

[0014] As a further improvement to the technical solution of the present invention, the upper connecting rod or the lower connecting rod has a second rod body weak point.

[0015] As a further improvement to the technical solution of the present invention, the size of the part of the lifting rod where the first rod body weak point is provided is smaller than the size of other parts of the lifting rod.

[0016] As a further improvement to the technical solution of the present invention, the size of the part of the upper connecting rod or the lower connecting rod where the second rod body weak point is provided is smaller than the size of other parts of the upper connecting rod or the lower connecting rod.

[0017] As a further improvement to the technical solution of the present invention, the sonar includes a driving assembly, the driving assembly includes a driving rod and a handwheel disposed at one end of the driving rod, and the end portions of the two transmission shafts extending through the bulkhead of the watertight compartment to the outside of the watertight compartment are respectively drivably connected to the driving rod.

[0018] As a further improvement to the technical solution of the present invention, the sonar includes a watertight plug, the watertight plug is disposed in the watertight compartment, and the watertight cable of the sonar body is inserted into the watertight plug.

[0019] According to another aspect of the present invention, the present invention further provides a disposable shock-absorbing mechanism, which includes:

[0020] A shock-absorbing platform;

[0021] A watertight compartment, wherein the watertight compartment has a compartment cavity and a bottom opening, a top channel and two pairs of bulkhead perforations respectively communicating with the compartment cavity;

[0022] A lifting assembly, wherein the lifting assembly includes a receiving cylinder and a lifting rod telescopically disposed in the receiving cylinder, the bottom of the receiving cylinder is installed above the watertight compartment, the lifting rod extends through the top channel of the watertight compartment to the compartment cavity of the watertight compartment, the shock-absorbing platform is disposed on the lifting rod, and wherein the lifting rod has a first rod body weak point;

[0023] A transmission assembly, wherein the transmission assembly includes two transmission shafts, opposite ends of one transmission shaft are respectively rotatably installed in a pair of the bulkhead perforations of the watertight compartment, and opposite ends of the other transmission shaft are respectively rotatably installed in the other pair of the bulkhead perforations of the watertight compartment;

[0024] Two connecting rod assemblies, wherein each connecting rod assembly respectively includes an upper connecting rod and a lower connecting rod, one end of the upper connecting rod and one end of the lower connecting rod are rotatably installed, the other end of the upper connecting rod is fixedly installed on the transmission shaft, and the other end of the lower connecting rod is rotatably installed on the shock-absorbing platform, and wherein the upper connecting rod or the lower connecting rod has a second rod body weak point.

[0025] As a further improvement to the technical solution of the present invention, the size of the part of the lifting rod where the first rod body weak point is provided is smaller than the size of other parts of the lifting rod, and the size of the part of the upper connecting rod or the lower connecting rod where the second rod body weak point is provided is smaller than the size of other parts of the upper connecting rod or the lower connecting rod.

[0026] As a further improvement to the technical solution of the present invention, the disposable shock absorption mechanism includes a watertight plug, and the watertight plug is arranged in the watertight cabin.

[0027] Compared with the prior art, the present invention has at least the following beneficial effects:

[0028] 1. When the two transmission shafts of the transmission assembly rotate, the two transmission shafts can realize the lifting of the shock absorption platform and the sonar body arranged on the shock absorption platform through the two connecting rod assemblies, so that the sonar can switch between the recovery state and the detection state. When the sonar is in the recovery state, the sonar body is hidden in the cavity of the watertight cabin. In this way, not only the sonar body can be protected, but also the submersible or the hull can be protected;

[0029] 2. By arranging the sonar body on the shock absorption platform, when the submersible or the hull vibrates, the shock absorption platform can weaken the influence of the vibration on the sonar body to ensure the detection accuracy of the sonar body;

[0030] 3. The lifting rod of the lifting assembly is provided with the first rod body weak point. When the sonar is in the detection state and the component of the resistance received by the shock absorption platform and the sonar body acting on the lifting rod is greater than the bearing capacity of the part of the first rod body weak point of the lifting rod, the lifting rod breaks at the part of the first rod body weak point, so that the sonar can discard the shock absorption platform and the sonar body, thereby protecting the submersible or the hull;

[0031] 4. The upper connecting rod or the lower connecting rod of the connecting rod assembly is provided with the second rod body weak point. After the lifting rod breaks, the upper connecting rod or the lower connecting rod breaks at the part of the second rod body weak point to ensure that the sonar discards the shock absorption platform and the sonar body, thereby protecting the submersible or the hull.

[0032] Other beneficial effects of the present invention will be further disclosed and elaborated in the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a three-dimensional schematic diagram of a sonar in a detection state according to a preferred embodiment of the present invention.

[0034] Figure 2It is a schematic cross-sectional view of a position of the sonar according to the above-mentioned preferred embodiment of the present invention when in the detection state.

[0035] Figure 3 It is a schematic cross-sectional view of another position of the sonar according to the above-mentioned preferred embodiment of the present invention when in the detection state.

[0036] Figure 4 It is a three-dimensional schematic view of the sonar according to the above-mentioned preferred embodiment of the present invention when in the recovery state.

[0037] Figure 5 It is a schematic cross-sectional view of a position of the sonar according to the above-mentioned preferred embodiment of the present invention when in the recovery state.

[0038] Figure 6 It is a three-dimensional schematic view of a partial structure of the sonar according to the above-mentioned preferred embodiment of the present invention.

[0039] Figure 7 It is Figure 6 an enlarged view of a partial position.

[0040] Figure 8 It is a three-dimensional schematic view of a perspective of a shock-absorbing platform of the sonar according to the above-mentioned preferred embodiment of the present invention.

[0041] Figure 9 It is a three-dimensional schematic view of another perspective of the shock-absorbing platform of the sonar according to the above-mentioned preferred embodiment of the present invention.

[0042] Figure 10 It is a schematic cross-sectional view of a position of the shock-absorbing platform of the sonar according to the above-mentioned preferred embodiment of the present invention.

[0043] Figure 11 It is a schematic cross-sectional view of another position of the shock-absorbing platform of the sonar according to the above-mentioned preferred embodiment of the present invention.

[0044] Figure 12 It is a schematic top view of a partial position of the shock-absorbing platform of the sonar according to the above-mentioned preferred embodiment of the present invention.

[0045] Figure 13 It is a three-dimensional schematic view of one of the assembly steps of the shock-absorbing platform of the sonar according to the above-mentioned preferred embodiment of the present invention.

[0046] Figure 14 It is a three-dimensional schematic view of the second assembly step of the shock-absorbing platform of the sonar according to the above-mentioned preferred embodiment of the present invention.

[0047] Figure 15It is a three-dimensional schematic diagram of the third assembly step of the shock absorption platform of the sonar according to the above-mentioned preferred embodiment of the present invention.

[0048] Figure 16 It is a three-dimensional schematic diagram of the fourth assembly step of the shock absorption platform of the sonar according to the above-mentioned preferred embodiment of the present invention.

[0049] Figure 17 It is a three-dimensional schematic diagram of the fifth assembly step of the shock absorption platform of the sonar according to the above-mentioned preferred embodiment of the present invention.

[0050] Figure 18 It is a three-dimensional schematic diagram of the sixth assembly step of the shock absorption platform of the sonar according to the above-mentioned preferred embodiment of the present invention.

[0051] Figure 19 It is a three-dimensional schematic diagram of the seventh assembly step of the shock absorption platform of the sonar according to the above-mentioned preferred embodiment of the present invention.

[0052] In the figure:

[0053] 10, watertight cabin; 11, cabin cavity; 12, bottom opening; 13, top channel; 14, cabin wall perforation;

[0054] 20, lifting assembly; 21, receiving cylinder; 22, lifting rod; 221, first rod body weak point; 222, first rod body annular groove;

[0055] 30, transmission assembly; 31, transmission shaft; 32, waterproof seal bearing;

[0056] 40, connecting rod assembly; 41, upper connecting rod; 411, second rod body weak point; 412, second rod body annular groove; 42, lower connecting rod;

[0057] 50. Shock-absorbing platform; 51. Bottom plate; 511. Bottom plate screw hole; 52. Top plate; 521. Top plate screw hole; 522. Top plate perforation; 53. Shock-absorbing unit; 5301. Rear shock-absorbing unit; 5302. Side shock-absorbing unit; 531. Assembly frame; 5311. Frame body thread hole; 5312. Locking arm; 5313. Frame body perforation; 532. Rubber shock absorber; 5321. Shock absorber perforation; 5322. Lower shock-absorbing part; 53221. Lower shock-absorbing cylinder; 53222. Lower insertion cylinder; 5323. Upper shock-absorbing part; 53231. Upper shock-absorbing cylinder; 53232. Upper insertion cylinder; 5324. Connecting piece; 53241. Connecting cylinder; 53242. Connecting ring; 5325. Metal gasket; 53251. Gasket perforation; 533. Bottom adapter plate; 5331. Bottom adapter plate thread hole; 5332. Bottom adapter plate screw hole; 534. Wire rope shock absorber; 5341. Bottom extension arm; 53411. Bottom arm body perforation; 53412. Bottom arm body thread hole; 5342. Top extension arm; 53421. Top arm body perforation; 53422. Top arm body thread hole; 5343. Wire rope helix; 535. Top adapter plate; 5351. Top adapter plate screw hole; 5352. Top adapter plate thread hole;

[0058] 60. Sonar body; 61. Transmitting cabin; 62. Receiving cabin; 63. Watertight cable; 64. Body thread hole;

[0059] 70. Driving assembly; 71. Driving rod; 72. Handwheel;

[0060] 80. Watertight plug;

[0061] 100. Submersible or hull; 101. Assembly opening;

[0062] 200. Screw; Detailed implementation mode

[0063] Before detailing any embodiment of the present invention, it should be understood that the present invention is not limited in its application to the details of the construction and arrangement of the components described in the following description or illustrated in the following drawings. The present invention is capable of other embodiments and of being practiced or carried out in various ways. Additionally, it should be understood that the language and terminology used herein are for the purpose of description and should not be regarded as restrictive. As used herein, "including" or "having" and their variants are intended to cover the listed items and their equivalents as well as additional items. Unless otherwise specified or limited, the terms "mounted", "connected", "supported" and "coupled" and their variants are used broadly and cover direct and indirect mounting, connection, support and coupling. Moreover, "connected" and "coupled" are not limited to physical or mechanical connection or coupling.

[0064] Moreover, in the disclosure of the present invention, for the first aspect, the orientation or positional relationship indicated by terms such as "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is 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 operated in a specific orientation. Therefore, the above terms should not be construed as limitations on the present invention; for 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 can be one, while in other embodiments, the number of the element can be multiple. The term "one" should not be construed as a limitation on the quantity.

[0065] Referring to the attached drawings of the specification of the present invention Figures 1 to 19 , a sonar according to a preferred embodiment of the present invention will be disclosed and described hereinafter. The sonar has a recovery state and a detection state, and the sonar can switch between the recovery state and the detection state. The sonar includes a watertight cabin 10, at least one lifting assembly 20, a transmission assembly 30, two link assemblies 40, a shock absorption platform 50, and a sonar body 60.

[0066] Specifically, referring to the attached Figures 3 to 5 , the watertight cabin 10 can be disposed at the bottom of a submersible or a hull 100. The watertight cabin 10 has a cabin cavity 11, a bottom opening 12, at least one top channel 13, and two pairs of bulkhead perforations 14. The bottom opening 12, the top channel 13, and the bulkhead perforations 14 communicate with the cabin cavity 11 respectively.

[0067] In a specific example of the sonar of the present invention, an assembly opening 101 is provided at the bottom of the submersible or the hull 100. The shape and size of the edge of the assembly opening 101 of the submersible or the hull 100 match the shape and size of the edge of the bottom opening 12 of the watertight cabin 10. After inserting the edge of the bottom opening 12 of the watertight cabin 10 into the assembly opening 101 of the submersible or the hull 100, the watertight cabin 10 and the submersible or the hull 100 are welded to dispose the watertight cabin 10 at the bottom of the submersible or the hull 100. It can be understood that the welding position between the watertight cabin 10 and the submersible or the hull 100 is sealed to prevent seawater from entering the submersible or the hull 100 through the welding position between the watertight cabin 10 and the submersible or the hull 100.

[0068] The lifting assembly 20 includes a receiving cylinder 21 and a lifting rod 22 telescopically disposed in the receiving cylinder 21. The bottom of the receiving cylinder 21 is mounted above the watertight cabin 10, and the lifting rod 22 extends through the top channel 13 of the watertight cabin 10 into the cabin cavity 11 of the watertight cabin 10. It is worth mentioning that the installation method of the bottom of the receiving cylinder 21 and the watertight cabin 10 is not limited in the sonar of the present invention, as long as the receiving cylinder 21 can be stably disposed above the watertight cabin 10 and the receiving cylinder 21 seals the top channel 13 of the watertight cabin 10. For example, the sonar can be provided with a sealing ring between the bottom surface of the receiving cylinder 21 and the top surface of the watertight cabin 10, and a set of screws 200 is used to lock the receiving cylinder 21 and the watertight cabin 10.

[0069] In the attached Figures 1 to 19 In this specific example of the sonar of the present invention shown, the watertight cabin 10 has two top channels 13. Correspondingly, the number of the lifting assemblies 20 is two, and the lifting rods 22 of each lifting assembly 20 respectively extend through each top channel 13 of the watertight cabin 10 into the cabin cavity 11 of the watertight cabin 10.

[0070] The transmission assembly 30 includes two transmission shafts 31. Opposite ends of one transmission shaft 31 are respectively rotatably mounted on a pair of cabin wall perforations 14 of the watertight cabin 10, and opposite ends of the other transmission shaft 31 are respectively rotatably mounted on another pair of cabin wall perforations 14 of the watertight cabin 10. In this way, the main body portions of the two transmission shafts 31 are rotatably held in the cabin cavity 11 of the watertight cabin 10. The lifting rod 22 of the lifting assembly 20 is located between the two transmission shafts 31, so that a relatively large distance can be provided between the two transmission shafts 31.

[0071] To ensure the watertightness between the end of the transmission shaft 31 and the watertight cabin 10, referring to the attached Figure 2 、 Figure 3 、 Figure 5 and Figure 6 , the transmission assembly 30 includes two pairs of waterproof and sealed bearings 32. Opposite ends of the transmission shaft 31 are respectively sleeved with the waterproof and sealed bearings 32, and the waterproof and sealed bearings 32 are watertightly mounted on the cabin wall perforations 14 of the watertight cabin 10. In this way, the waterproof and sealed bearings 32 can not only enable the end of the transmission shaft 31 to rotate relative to the watertight cabin 10, but also ensure the watertightness between the end of the transmission shaft 31 and the watertight cabin 10.

[0072] Each of the link assemblies 40 includes an upper link 41 and a lower link 42. One end of the upper link 41 and one end of the lower link 42 are rotatably mounted. The other end of the upper link 41 (i.e., the end of the upper link 41 facing away from the lower link 42) is fixedly mounted on the transmission shaft 31. The other end of the lower link 42 (i.e., the end of the lower link 42 facing away from the upper link 41) is rotatably mounted on the shock-absorbing platform 50, and the shock-absorbing platform 50 is mounted on the lifting rod 22. The sonar body 60 is disposed on the shock-absorbing platform 50.

[0073] When both of the transmission shafts 31 rotate inwardly, the transmission shafts 31 respectively drive the upper links 41 of the two link assemblies 40 to swing upward synchronously. During this process, while the upper link 41 pulls the lower link 42 to swing upward, one end of the lower link 42 rotates around the mounting shaft of the upper link 41 and the lower link 42, and the other end of the lower link 42 rotates around the mounting shaft of the lower link 42 and the shock-absorbing platform 50. The shock-absorbing platform 50 is pulled upward and the shock-absorbing platform 50 pushes the lifting rod 22 to contract. The sonar body 60 is retracted into the cavity 11 of the watertight cabin 10, so that the sonar is in the retracted state. Correspondingly, when both of the transmission shafts 31 rotate outwardly, the transmission shafts 31 respectively drive the upper links 41 of the two link assemblies 40 to swing downward synchronously. During this process, while the upper link 41 pushes the lower link 42 to swing downward, one end of the lower link 42 rotates around the mounting shaft of the upper link 41 and the lower link 42, and the other end of the lower link 42 rotates around the mounting shaft of the lower link 42 and the shock-absorbing platform 50. The shock-absorbing platform 50 is pushed downward and the shock-absorbing platform 50 pulls the lifting rod 22 to extend. The sonar body 60 is released, so that the sonar is in the detection state.

[0074] It can be understood that when the sonar is in the retracted state, both the sonar body 60 and the shock-absorbing platform 50 are hidden in the cavity 11 of the watertight cabin 10. In this way, when the submersible or the hull 100 is sailing, the sonar body 60 can be protected to avoid being collided. On the other hand, when the submersible or the hull 100 is sailing at high speed, the sonar body 60 and the shock-absorbing platform 50 do not provide water resistance to avoid the force on the watertight cabin 10, so as to avoid the force on the welding position of the watertight cabin 10 and the submersible or the hull 100, and further avoid the tearing of the welding position of the watertight cabin 10 and the submersible or the hull 100 to protect the submersible or the hull 100, which is crucial for the sailing safety of the submersible or the hull 100.

[0075] It should be noted that since the edges of the bottom opening 12 of the watertight cabin 10 and the edges of the assembly opening 101 of the submersible or hull 100 are welded, the welding position between the watertight cabin 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 60 and the shock-absorbing platform 50 are suspended below the submersible or hull 100, it will inevitably cause water resistance provided by the sonar body 60 and the shock-absorbing platform 50, resulting in stress on the welding position between the watertight cabin 10 and the submersible or hull 100. It can be understood that the higher the navigation speed of the submersible or hull 100, the greater the force on the welding position between the watertight cabin 10 and the submersible or hull 100, and the easier it is for the welding position between the watertight cabin 10 and the submersible or hull 100 to tear. Once the welding position between the watertight cabin 10 and the submersible or hull 100 is torn, it will inevitably lead to water leakage problems, affecting the safety of the submersible or hull 100. Therefore, when the submersible or hull 100 is navigating at high speed, in order to avoid stress on the welding position between the watertight cabin 10 and the submersible or hull 100, the sonar of the present invention retracts the sonar body 60 and the shock-absorbing platform 50 by driving the transmission shaft 31 to rotate. It can be understood that after the sonar retracts the sonar body 60 and the shock-absorbing platform 50 by driving the transmission shaft 31 to rotate, the shock-absorbing platform 50 covers the bottom opening 12 of the watertight cabin 10, preventing the sonar body 60 from being collided or entangled by other objects (such as waterweeds, kelp), etc., to protect the sonar body 60.

[0076] When the sonar is in the detection state, the sonar body 60 and the shock-absorbing platform 50 are suspended below the submersible or hull 100 for detecting the underwater environment, where the lifting assembly 20 is used to resist the resistance of seawater acting on the shock-absorbing platform 50 and the sonar body 60, preventing the sonar body 60 from tilting. During this process, if the submersible or hull 100 is collided or vibrates due to other reasons, the shock-absorbing platform 50 can weaken the impact of the vibration on the sonar body 60, thus ensuring the detection accuracy of the sonar body 60.

[0077] Preferably, the lower links 42 of the two link assemblies 40 are rotatably mounted on the shock-absorbing platform 50 at two diagonals of the shock-absorbing platform 50 respectively. Specifically, in the appendix Figure 2From the perspective shown, the end of the upper link 41 of one link assembly 40 facing away from the lower link 42 is fixedly mounted on the left end of one transmission shaft 31. The end of the lower link 42 of this link assembly 40 facing away from the upper link 41 is rotatably mounted on the left front corner of the shock-absorbing platform 50. The end of the upper link 41 of the other link assembly 40 facing away from the lower link 42 is fixedly mounted on the right end of the other transmission shaft 31. The end of the lower link 42 of this link assembly 40 facing away from the upper link 41 is rotatably mounted on the right rear corner of the shock-absorbing platform 50. In this way, during the lifting and lowering of the shock-absorbing platform 50 and the sonar body 60, the two link assemblies 40 can prevent the shock-absorbing platform 50 and the sonar body 60 from tilting. At the same time, the sonar can prevent the two link assemblies 40 from interfering with and colliding with each other.

[0078] Continue to refer to the appendix Figures 1 to 6 The sonar further includes a driving assembly 70. The driving assembly 70 includes a driving rod 71 and a handwheel 72 disposed at one end of the driving rod 71. The ends of the two transmission shafts 31 extending to the outside of the watertight compartment 10 through the bulkhead perforations 14 of the watertight compartment 10 are drivably connected to the driving rod 71. For example, the ends of the transmission shafts 31 and the driving rod 71 can be meshed so that the ends of the transmission shafts 31 are drivably connected to the driving rod 71. When the handwheel 72 is rotated in one direction to rotate the driving rod 71, the driving rod 71 can drive the two transmission shafts 31 to rotate inward to retract the sonar body 60 and switch the sonar from the detection state to the recovery state. When the handwheel 72 is rotated in the other direction to rotate the driving rod 71, the driving rod 71 can drive the two transmission shafts 31 to rotate outward to release the sonar body 60 and switch the sonar from the recovery state to the detection state. It can be understood that in other examples of the sonar of the present invention, the driving rod 71 can also be driven by a motor.

[0079] Continue to refer to the appendix Figures 1 to 6, the sonar further includes a watertight plug 80 which is disposed in the watertight cabin 10. The sonar body 60 includes a transmitting cabin 61, a receiving cabin 62 and a watertight cable 63. The transmitting cabin 61 includes a transmitting transducer for generating and transmitting acoustic signals. The receiving cabin 62 includes a receiving transducer for receiving the reflected acoustic signals and processing them. One end of the watertight cable 63 is disposed in the receiving cabin 62 and is circuit-connected to the transmitting cabin 61 and the receiving cabin 62. The other end is inserted into the watertight plug 80. The cable of the submersible or the hull 100 is inserted into the watertight plug 80. Thus, the watertight plug 80 can realize the connection between the watertight cable 63 of the sonar body 60 and the cable of the submersible or the hull 100. In this way, the control units of the sonar body 60 and the submersible or the hull 100 can be connected.

[0080] When the sonar is in the detection state, in an emergency, the submersible or the hull 100 will accelerate at a large acceleration. At this time, the sonar may not have time to switch to the recovery state. That is, when the submersible or the hull 100 is sailing at high speed, the shock absorption platform 50 and the sonar body 60 are still suspended below the submersible or the hull 100. At this time, the shock absorption platform 50 and the sonar body 60 will be subjected to a large resistance. The component force of this resistance will be applied to the lifting rod 22 and further applied to the watertight cabin 10, resulting in the force on the welding position between the watertight cabin 10 and the submersible or the hull 100, and further resulting in the risk of tearing at the welding position between the watertight cabin 10 and the submersible or the hull 100, bringing serious safety hazards to the submersible or the hull 100. Therefore, in the case where the sonar does not have time to switch to the recovery state, in order to avoid the tearing of the welding position between the watertight cabin 10 and the submersible or the hull 100, a first rod body weak point 221 is provided on the lifting rod 22 of the lifting assembly 20 of the sonar of the present invention. When the component force of the resistance received by the shock absorption platform 50 and the sonar body 60 applied to the lifting rod 22 is greater than the bearing capacity of the part of the first rod body weak point 221 of the lifting rod 22, the lifting rod 22 breaks at the part of the first rod body weak point 221, so that the sonar can abandon the shock absorption platform 50 and the sonar body 60, thereby protecting the submersible or the hull 100.

[0081] After the lifting rod 22 breaks at the part of the first rod body weak point 221, in order to ensure that the shock-absorbing platform 50 and the sonar body 60 are completely discarded without being dragged, in an example of the sonar of the present invention, the upper connecting rod 41 of the connecting rod assembly 40 is provided with a second rod body weak point 411. After the lifting rod 22 breaks at the part of the first rod body weak point 221, the upper connecting rod 41 is subjected to a force in the lateral direction and continuously breaks at the second rod body weak point 411 to ensure that the sonar discards the shock-absorbing platform 50 and the sonar body 60, thereby protecting the submersible or the hull 100. It can be understood that since the watertight cable 63 of the sonar body 60 and the watertight plug 80 are inserted, after the lifting rod 22 breaks at the part of the first rod body weak point 221 and the upper connecting rod 41 breaks at the part of the second rod body weak point 411, the watertight cable 63 of the sonar body 60 is forced to fall off from the watertight plug 80. In another example of the sonar of the present invention, the second rod body weak point 411 can also be provided on the lower connecting rod 42.

[0082] Reference appendix Figure 6 and Figure 7 , the size of the part of the lifting rod 22 provided with the first rod body weak point 221 is smaller than the size of other parts of the lifting rod 22. In this way, when the lifting rod 22 is subjected to a force in the lateral direction, the bearing capacity of the lifting rod 22 at the first rod body weak point 221 is reduced, so that the lifting rod 22 can break at the part of the first rod body weak point 221. Preferably, the lifting rod 22 has a first rod body annular groove 222, and the first rod body weak point 221 is formed at the position of the lifting rod 22 provided with the first rod body annular groove 222.

[0083] Continue to refer to appendix Figure 6 and Figure 7 , the size of the part of the upper connecting rod 41 provided with the second rod body weak point 411 is smaller than the size of other parts of the upper connecting rod 41. In this way, when the upper connecting rod 41 is subjected to a force in the lateral direction, the bearing capacity of the upper connecting rod 41 at the second rod body weak point 411 is reduced, so that the upper connecting rod 41 can break at the part of the second rod body weak point 411. Preferably, the upper connecting rod 41 has a second rod body annular groove 412, and the second rod body weak point 411 is formed at the position of the upper connecting rod 41 provided with the second rod body annular groove 412.

[0084] It can be understood that the watertight compartment 10, the lifting assembly 20, the transmission assembly 30, the link assembly 40, and the shock-absorbing platform 50 can form a disposable shock-absorbing mechanism. In other words, the disposable shock-absorbing mechanism includes the watertight compartment 10, the lifting assembly 20, the transmission assembly 30, the link assembly 40, and the shock-absorbing platform 50. The watertight compartment 10 has the compartment cavity 11, the bottom opening 12, the top passage 13, and the bulkhead perforation 14 that are respectively communicated with the compartment cavity 11. The lifting assembly 20 includes the receiving cylinder 21 and the lifting rod 22 that is telescopically arranged in the receiving cylinder 21. The bottom of the receiving cylinder 21 is installed above the watertight compartment 10. The lifting rod 22 extends through the top passage 13 of the watertight compartment 10 into the compartment cavity 11 of the watertight compartment 10. The shock-absorbing platform 50 is arranged on the lifting rod 22. The lifting rod 22 has the first rod body weak point 221. The transmission assembly 30 includes two transmission shafts 31. Opposite ends of one transmission shaft 31 are respectively rotatably installed in a pair of the bulkhead perforations 14 of the watertight compartment 10. Opposite ends of the other transmission shaft 31 are respectively rotatably installed in another pair of the bulkhead perforations 14 of the watertight compartment 10. The number of the link assemblies 40 is two. Each link assembly 40 includes an upper link 41 and a lower link 42. One end of the upper link 41 and one end of the lower link 42 are rotatably installed. The other end of the upper link 41 is fixedly installed on the transmission shaft 31. The other end of the lower link 42 is rotatably installed on the shock-absorbing platform 50. The upper link 41 or the lower link 42 has the second rod body weak point 411. In an emergency, the lifting rod 22 can break at the position of the first rod body weak point 221, and the upper link 41 or the lower link 42 can break at the position of the second rod body weak point 411, so that the shock-absorbing platform 50 is discarded, and thus the sonar body 60 installed on the shock-absorbing platform 50 is discarded synchronously.

[0085] Appended Figures 8 to 19 The specific structure and assembly steps of the shock-absorbing platform 50 shown.

[0086] Specifically, the shock-absorbing platform 50 includes a bottom plate 51, a top plate 52, and a set of shock-absorbing units 53. The bottoms of the shock-absorbing units 53 are respectively installed on the bottom plate 51, and the tops of the shock-absorbing units 53 are respectively installed on the top plate 52, so that the bottom plate 51 is suspended below the top plate 52 by the shock-absorbing units 53. The sonar body 60 can be installed on the bottom plate 51, and the sonar body 60 is located in the space between the bottom plate 51 and the top plate 52.

[0087] Preferably, the sonar body 60 is mounted on the bottom plate 51 by at least one of the screws 200. Specifically, the bottom plate 51 has a series of bottom plate screw holes 511, and the sonar body 60 has at least one body threaded hole 64. After the sonar body 60 is placed above the bottom plate 51, the position of the body threaded hole 64 of the sonar body 60 corresponds to the position of the bottom plate screw hole 511 in the middle of the bottom plate 51. The threaded end of the screw 200 extends to the body threaded hole 64 of the sonar body 60 after passing through the bottom plate screw hole 511 of the bottom plate 51, and the threaded end of the screw 200 is screwed onto the sonar body 60, so that the sonar body 60 is mounted on the bottom plate 51 by the screw 200. Preferably, the sonar body 60 is mounted on the bottom plate 51 by two of the screws 200 to prevent the sonar body 60 from rotating relative to the bottom plate 51, so that the sonar body 60 is reliably mounted on the bottom plate 51, and thus the sonar body 60 is arranged on the shock-absorbing platform 50.

[0088] The top plate 52 of the shock-absorbing platform 50 is mounted on the ends of the lifting rod 22 and the lower connecting rod 42 that are away from the upper connecting rod 41. When the submersible or the hull 100 vibrates, the vibration will be directly transmitted to the top plate 52 through the watertight cabin 10, the lifting rod 22 and the link assembly 40, causing the top plate 52 to vibrate. Each of the shock-absorbing units 53 can cooperate with each other to effectively weaken the vibration and prevent the vibration from being transmitted in the direction of the bottom plate 51, thereby reducing the impact of the vibration on the sonar body 60 mounted on the bottom plate 51 to ensure the detection accuracy of the sonar body 60.

[0089] In a specific example of the sonar of the present invention, the number of the shock-absorbing units 53 is three. The three shock-absorbing units 53 are a rear shock-absorbing unit 5301 and two side shock-absorbing units 5302 respectively. The rear shock-absorbing unit 5301 is arranged at the rear, and the two side shock-absorbing units 5302 are arranged obliquely and symmetrically on both sides. A straight line L1 passing through the center of gravity of the rear shock-absorbing unit 5301 and perpendicular to the rear shock-absorbing unit 5301, a straight line L2 passing through the center of gravity of one of the side shock-absorbing units 5302 and perpendicular to this side shock-absorbing unit 5302, a straight line L3 passing through the center of gravity of the other side shock-absorbing unit 5302 and perpendicular to this side shock-absorbing unit 5302, and a straight line passing through the center of gravity of the sonar body 60 and consistent with the height direction of the sonar body 60 intersect at a point. In this way, a group of the shock-absorbing units 53 is beneficial to ensuring the balanced force of the sonar body 60 on the basis of ensuring the weakening effect on the vibration, refer to the attached Figure 12 .

[0090] Reference appendix Figures 8 to 19 Figures 8 to 19 , each of the shock absorption units 53 respectively includes an assembly frame 531, at least one rubber shock absorber 532, a bottom adapter plate 533, a wire rope shock absorber 534 and a top adapter plate 535. The bottom of the assembly frame 531 is installed on the bottom plate 51. The bottom adapter plate 533 is installed on the top of the assembly frame 531 through the rubber shock absorber 532. The bottom of the wire rope shock absorber 534 is installed on the bottom adapter plate 533, and the top is installed on the bottom of the top adapter plate 535. The top of the top adapter plate 535 is installed on the top plate 52. In this way, the bottom of the shock absorption unit 53 is installed on the bottom plate 51, and the top of the shock absorption unit 53 is installed on the top plate 52, so that each of the shock absorption units 53 is used to suspend the bottom plate 51 below the top plate 52.

[0091] That is to say, the rubber shock absorber 532 isolates the assembly frame 531 and the bottom adapter plate 533, the rubber shock absorber 532 prevents the assembly frame 531 and the bottom adapter plate 533 from directly contacting, the wire rope shock absorber 534 isolates the bottom adapter plate 533 and the top adapter plate 535, and the wire rope shock absorber 534 prevents the bottom adapter plate 533 and the top adapter plate 535 from directly contacting.

[0092] In a specific example of the sonar of the present invention, the rubber shock absorber 532 is not directly mounted on the wire rope shock absorber 534. Instead, a bottom adapter plate 533 is provided between the rubber shock absorber 532 and the wire rope shock absorber 534. The top of the wire rope shock absorber 534 is not directly mounted on the top plate 52. Instead, a top adapter plate 535 is provided between the wire rope shock absorber 534 and the top plate 52. In this way, first, it is beneficial to improve the effect of the wire rope shock absorber 534 in weakening the low-frequency part of the vibration transmitted to the top plate 52 and the rubber shock absorber 532 in weakening the high-frequency part of the vibration transmitted to the top plate 52, so as to improve the shock absorption effect of the shock absorption platform 50. Second, the bottom adapter plate 533 and the top adapter plate 535 can increase the distance between the bottom plate 51 and the top plate 52, so that the distance between the bottom plate 51 and the top plate 52 meets the height requirement of the sonar body 60. Third, when the rubber shock absorber 532 and the wire rope shock absorber 534 are standard parts, only the bottom adapter plate 533 and the top adapter plate 535 with different thickness dimensions need to be replaced according to the height dimension of the sonar body 60 to meet the height requirement of the sonar body 60. It can be understood that the shock absorption platform 50 can also replace the mounting frame 531 with different height dimensions.

[0093] Refer to the attached Figure 11 , at least one frame body threaded hole 5311 is provided at the bottom of the mounting frame 531. The position of the frame body threaded hole 5311 of the mounting frame 531 corresponds to the position of the bottom plate screw hole 511 at the edge of the bottom plate 51. The threaded end of the screw 200 extends to the frame body threaded hole 5311 of the mounting frame 531 after passing through the bottom plate screw hole 511 of the bottom plate 51, and the threaded end of the screw 200 is screwed onto the mounting frame 531 to mount the bottom of the mounting frame 531 on the bottom plate 51. Preferably, four frame body threaded holes 5311 are provided at the bottom of the mounting frame 531. Correspondingly, the threaded ends of the four screws 200 extend to the four frame body threaded holes 5311 of the mounting frame 531 after passing through the four bottom plate screw holes 511 located at the edge positions of the bottom plate 51 respectively, and the threaded ends of the screws 200 are screwed onto the mounting frame 531. In this way, the mounting frame 531 is reliably mounted on the bottom plate 51.

[0094] Continue to refer to the attached Figure 10 and Figure 11, on the opposite sides of the top of the mounting frame 531, there are respectively a locking arm 5312 and two frame body perforations 5313. Each of the locking arms 5312 of the mounting frame 531 has one of the frame body perforations 5313, and the frame body perforation 5313 extends from the bottom to the top of the locking arm 5312. The shock absorption unit 53 includes two rubber shock absorbers 532. The middle part of each rubber shock absorber 532 is respectively installed in each of the frame body perforations 5313 of the mounting frame 531, and the opposite ends of the rubber shock absorber 532 respectively protrude from the bottom and the top of the locking arm 5312. Wherein the rubber shock absorber 532 has a shock absorber perforation 5321, which penetrates through the bottom and the top of the rubber shock absorber 532. The bottom adapter plate 533 has two bottom adapter plate threaded holes 5331. The positions of each of the bottom adapter plate threaded holes 5331 of the bottom adapter plate 533 correspond to the positions of the shock absorber perforations 5321 of each of the rubber shock absorbers 532. The threaded ends of the two screws 200 respectively extend to the respective bottom adapter plate threaded holes 5331 of the bottom adapter plate 533 after passing through the shock absorber perforations 5321 of the respective rubber shock absorbers 532, and the threaded ends of the screws 200 are screwed to the bottom adapter plate 533. In this way, the bottom adapter plate 533 is installed on the top of the mounting frame 531 through the rubber shock absorbers 532, and the rubber shock absorbers 532 isolate the screws 200 from the mounting frame 531 to effectively weaken the high-frequency part in the vibration.

[0095] Continue to refer to the appendix Figure 10 and Figure 11, the rubber shock absorber 532 includes a lower shock absorption part 5322 and an upper shock absorption part 5323. The lower shock absorption part 5322 includes a lower shock absorption cylinder 53221 and a lower insertion cylinder 53222 with an outer diameter smaller than that of the lower shock absorption cylinder 53221. The lower insertion cylinder 53222 extends upward from the lower shock absorption cylinder 53221. The outer diameter of the lower insertion cylinder 53222 is the same as the inner diameter of the frame through hole 5313 of the assembly frame 531. The lower insertion cylinder 53222 of the lower shock absorption part 5322 is inserted into the frame through hole 5313 of the assembly frame 531 from bottom to top, and the lower shock absorption cylinder 53221 of the lower shock absorption part 5322 is stacked on the bottom of the locking arm 5312 of the assembly frame 531. The upper shock absorption part 5323 includes an upper shock absorption cylinder 53231 and an upper insertion cylinder 53232 with an outer diameter smaller than that of the upper shock absorption cylinder 53231. The upper insertion cylinder 53232 extends downward from the upper shock absorption cylinder 53231. The outer diameter of the upper insertion cylinder 53232 is the same as the inner diameter of the frame through hole 5313 of the assembly frame 531. The upper insertion cylinder 53232 of the upper shock absorption part 5323 is inserted into the frame through hole 5313 of the assembly frame 531 from top to bottom, and the upper shock absorption cylinder 53231 of the upper shock absorption part 5323 is stacked on the top of the locking arm 5312 of the assembly frame 531.

[0096] The opposite ends of the bottom adapter plate 533 are respectively supported by the upper shock absorption cylinders 53231 of the upper shock absorption parts 5323 of the two rubber shock absorbers 532. When the positions of the bottom adapter plate threaded holes 5331 of the bottom adapter plate 533 correspond to the positions of the shock absorber through holes 5321 of the respective rubber shock absorbers 532, the threaded ends of the respective screws 200 extend to the respective bottom adapter plate threaded holes 5331 of the bottom adapter plate 533 after passing through the shock absorber through holes 5321 of the respective rubber shock absorbers 532, and the threaded ends of the screws 200 are screwed to the bottom adapter plate 533 so that the bottom adapter plate 533 is mounted on the top of the assembly frame 531 through the rubber shock absorbers 532. In this way, the lower shock absorption part 5322 isolates the screw 200 from the locking arm 5312 of the assembly frame 531, and the upper shock absorption part 5323 not only isolates the screw 200 from the locking arm 5312 of the assembly frame 531, but also isolates the bottom adapter plate 533 from the locking arm 5312 of the assembly frame 531. In this way, the rubber shock absorber 532 can effectively weaken the high-frequency part in the vibration and reduce the influence of the high-frequency part in the vibration on the bottom plate 51 and the sonar body 60 mounted on the bottom plate 51.

[0097] Continue to refer to the appendix Figure 10 and Figure 11 The rubber shock absorber 532 further includes a metal connecting member 5324 and a metal gasket 5325. The connecting member 5324 includes a connecting cylinder 53241 and a connecting ring 53242. The connecting ring 53242 extends outward from the bottom of the connecting cylinder 53241. The outer diameter of the connecting cylinder 53241 is the same as the inner diameter of the shock absorber perforation 5321 of the rubber shock absorber 532. The outer diameter of the connecting ring 53242 is larger than the inner diameter of the shock absorber perforation 5321 of the rubber shock absorber 532. The metal gasket 5325 has a gasket perforation 53251. The metal gasket 5325 is stacked on the upper shock absorber cylinder 53231 of the upper shock absorber portion 5323, and the gasket perforation 53251 of the metal gasket 5325 corresponds to the hollow portion of the upper shock absorber portion 5323.

[0098] The top of the connecting cylinder 53241 sequentially passes through the hollow portions of the lower shock absorber portion 5322 and the upper shock absorber portion 5323, so that the top of the connecting cylinder 53241 passes through the shock absorber perforation 5321 of the rubber shock absorber 532. The top of the connecting cylinder 53241 further penetrates into the gasket perforation 53251 of the metal gasket 5325. The connecting ring 53242 is stacked on the lower shock absorber cylinder 53221. The threaded end of the screw 200 extends to the bottom adapter plate threaded hole 5331 of the bottom adapter plate 533 after passing through the connecting cylinder 53241 and the gasket perforation 53251 of the metal gasket 5325, and the threaded end of the screw 200 is screwed onto the bottom adapter plate 533. In this way, first, even if the lower shock absorber portion 5322 and the upper shock absorber portion 5323 age, the connecting member 5324 can still ensure that the lower shock absorber portion 5322 and the upper shock absorber portion 5323 do not fall off. Second, the connecting member 5324 can isolate the lower shock absorber portion 5322 and the screw 200 and isolate the upper shock absorber portion 5323 and the screw 200, so that the lower shock absorber portion 5322 and the upper shock absorber portion 5323 made of rubber material are not cut by the thread of the threaded end of the screw 200, thereby protecting the lower shock absorber portion 5322 and the upper shock absorber portion 5323. Third, during the process of screwing the screw 200 onto the bottom adapter plate 533, the connecting member 5324 and the metal gasket 5325 can prevent the lower shock absorber portion 5322 and the upper shock absorber portion 5323 from being over-compressed and causing fracture, ensuring that the lower shock absorber portion 5322 and the upper shock absorber portion 5323 have good shock absorption effects.

[0099] That is to say, the connecting member 5324 and the metal gasket 5325 cooperate with each other, which can not only prevent the lower damping part 5322 and the upper damping part 5323 from being over-compressed, but also control the compression amount of the lower damping part 5322 and the upper damping part 5323, ensuring that the lower damping part 5322 and the upper damping part 5323 have good damping effects.

[0100] Reference appendix Figure 10 and Figure 11 As shown in the figure, the wire rope shock absorber 534 includes a bottom extension arm 5341, a top extension arm 5342 and a wire rope helix 5343. The bottom extension arm 5341 has a row of bottom arm body perforations 53411, and the top extension arm 5342 has a row of top arm body perforations 53421. The bottom extension arm 5341 and the top extension arm 5342 are symmetrically and spaced apart from each other. The positions of the respective bottom arm body perforations 53411 of the bottom extension arm 5341 correspond one by one to the positions of the respective top arm body perforations 53421 of the top extension arm 5342. The wire rope helix 5343 sequentially crosses through the respective bottom arm body perforations 53411 of the bottom extension arm 5341 and the respective top arm body perforations 53421 of the top extension arm 5342 to connect the bottom extension arm 5341 and the top extension arm 5342 by the wire rope helix 5343. Since the wire rope helix 5343 extends spirally between the bottom extension arm 5341 and the top extension arm 5342, the wire rope helix 5343 has elasticity. After the bottom extension arm 5341 and the top extension arm 5342 are applied with pressure and move closer to each other, the wire rope helix 5343 deforms and stores elastic potential energy. After the pressure applied to the bottom extension arm 5341 and the top extension arm 5342 is withdrawn, the wire rope helix 5343 returns to its initial state and resets the bottom extension arm 5341 and the top extension arm 5342.

[0101] The bottom extension arm 5341 is installed on the bottom adapter plate 533. For example, the bottom extension arm 5341 is installed on the bottom adapter plate 533 through the screw 200. The top extension arm 5342 is installed on the top adapter plate 535. For example, the top extension arm 5342 is installed on the top adapter plate 535 through the screw 200. In this way, the wire rope shock absorber 534 is used to connect the bottom adapter plate 533 and the top adapter plate 535, and the wire rope shock absorber 534 is used to weaken the low-frequency part in the vibration.

[0102] Preferably, the wire rope shock absorbers 534 of the two side shock absorption units 5302 have the same specifications, and the wire rope shock absorbers 534 of the two side shock absorption units 5302 are in a natural state. The wire rope shock absorbers 534 of the rear shock absorption unit 5301 have different specifications from those of the wire rope shock absorbers 534 of the side shock absorption units 5302, and the wire rope shock absorbers 534 of the rear shock absorption unit 5301 are in a compressed state. In this way, it is beneficial to ensure that a straight line L1 passing through the center of gravity of the rear shock absorption unit 5301 and perpendicular to the rear shock absorption unit 5301, a straight line L2 passing through the center of gravity of one side shock absorption unit 5302 and perpendicular to this side shock absorption unit 5302, a straight line L3 passing through the center of gravity of the other side shock absorption unit 5302 and perpendicular to this side shock absorption unit 5302, and a straight line passing through the center of gravity of the sonar body 60 and consistent with the height direction of the sonar body 60 intersect at one point, avoiding the problem of the sonar body 60 "lowering its head".

[0103] In this specific example of the sonar of the present invention, opposite ends of the bottom adapter plate 533 respectively have a bottom adapter plate screw hole 5332, opposite ends of the bottom extension arm 5341 respectively have a bottom arm body threaded hole 53412, the positions of the respective bottom arm body threaded holes 53412 of the bottom extension arm 5341 correspond to the positions of the respective bottom adapter plate screw holes 5332 of the bottom adapter plate 533, the threaded ends of the respective screws 200 extend to the respective bottom arm body threaded holes 53412 of the bottom extension arm 5341 after passing through the respective bottom adapter plate screw holes 5332 of the bottom adapter plate 533, and the threaded ends of the respective screws 200 are screwed to the bottom extension arm 5341. In this way, the bottom extension arm 5341 is mounted on the bottom adapter plate 533 through the screws 200.

[0104] In this specific example of the sonar of the present invention, opposite ends of the top adapter plate 535 respectively have a top adapter plate screw hole 5351, opposite ends of the top extension arm 5342 respectively have a top arm body threaded hole 53422, positions of the respective top adapter plate screw holes 5351 of the top adapter plate 535 correspond to positions of the respective top arm body threaded holes 53422 of the top extension arm 5342, threaded ends of the respective screws 200 extend to the respective top arm body threaded holes 53422 of the top extension arm 5342 after passing through the respective top adapter plate screw holes 5351 of the top adapter plate 535, and the threaded ends of the respective screws 200 are screwed onto the top extension arm 5342, so that the top extension arm 5342 is mounted on the top adapter plate 535 by the screws 200.

[0105] Continue to refer to the attached Figure 10 and Figure 11 , the top adapter plate 535 is mounted on the top plate 52 by the screws 200. Specifically, the top plate 52 has at least one top plate screw hole 521, the top adapter plate 535 has at least one top adapter plate threaded hole 5352, positions of the top plate screw hole 521 of the top plate 52 correspond to positions of the top adapter plate threaded hole 5352 of the top adapter plate 535, the threaded end of the screw 200 extends to the top adapter plate threaded hole 5352 of the top adapter plate 535 after passing through the top plate screw hole 521 of the top plate 52, and the threaded end of the screw 200 is screwed onto the top adapter plate 535, so that the top adapter plate 535 is mounted on the top plate 52 by the screws 200.

[0106] Preferably, the top adapter plate 535 is mounted on the top plate 52 by two rows of the screws 200 to facilitate uniform force on the wire rope shock absorber 534 and ensure the shock absorption effect of the shock absorption unit 53. The number of the screws 200 in each row is not limited in the sonar of the present invention. For example, in this specific example of the sonar of the present invention shown in the attached Figures 1 to 19 , the number of the screws 200 in each row is four, that is, eight screws 200 are used to mount the top plate 52 and the top adapter plate 535.

[0107] Refer to the attached Figure 13 and Figure 14, insert the lower insertion cylinder 53222 into the frame body perforation 5313 of the assembly frame 531 from bottom to top and insert the upper insertion cylinder 53232 into the frame body perforation 5313 of the assembly frame 531 from top to bottom. Stack the metal gasket 5325 on the upper shock-absorbing cylinder 53231. After passing through the hollow part of the lower shock-absorbing part 5322 and the hollow part of the upper shock-absorbing part 5323 in sequence at the top of the connecting cylinder 53241, extend into the gasket perforation 53251 of the metal gasket 5325, and stack the connecting ring 53242 on the lower shock-absorbing cylinder 53221. Set the rubber shock absorber 532 on the assembly frame 531 in this way.

[0108] Reference appendix Figure 15 , allow the threaded end of the screw 200 to extend to the bottom adapter plate threaded hole 5331 of the bottom adapter plate 533 after passing through the gasket perforation 53251 of the connecting cylinder 53241 and the metal gasket 5325, and the threaded end of the screw 200 is screwed onto the bottom adapter plate 533. In this way, the bottom adapter plate 533 is installed on the assembly frame 531 through the rubber shock absorber 532.

[0109] Reference appendix Figure 16 , allow the threaded end of the screw 200 to extend to the bottom arm body threaded hole 53412 of the bottom extension arm 5341 after passing through the bottom adapter plate screw hole 5332 of the bottom adapter plate 533, and the threaded end of the screw 200 is screwed onto the bottom extension arm 5341. Install the wire rope shock absorber 534 on the bottom adapter plate 533 in this way.

[0110] Reference appendix Figure 17 , allow the threaded end of the screw 200 to extend to the top arm body threaded hole 53422 of the top extension arm 5342 after passing through the top adapter plate screw hole 5351 of the top adapter plate 535, and the threaded end of the screw 200 is screwed onto the top extension arm 5342. Install the top adapter plate 535 on the wire rope shock absorber 534 in this way. At this time, the shock absorption unit 53 is assembled.

[0111] Reference appendix Figure 18, allow the threaded end of the screw rod 200 to extend to the threaded hole 5311 of the frame body of the assembly frame 531 after passing through the bottom plate screw hole 511 of the bottom plate 51, and the threaded end of the screw rod 200 is screwed to the assembly frame 531, so as to install the shock absorption unit 53 on the bottom plate 51. Allow the threaded end of the screw rod 200 to extend to the threaded hole 5352 of the top adapter plate 535 after passing through the top plate screw hole 521 of the top plate 52, and the threaded end of the screw rod 200 is screwed to the top adapter plate 535, so as to install the shock absorption unit 53 on the top plate 52. At this time, the shock absorption platform 50 is assembled.

[0112] Refer to the attached Figure 19 , allow the threaded end of the screw rod 200 to extend to the body threaded hole 64 of the sonar body 60 after passing through the bottom plate screw hole 511 in the middle of the bottom plate 51, and the threaded end of the screw rod 200 is screwed to the sonar body 60, so that the sonar body 60 is installed on the bottom plate 51, and the watertight cable 63 of the sonar body 60 can extend to the outside of the shock absorption platform 50 after passing through the top plate perforation 522 of the top plate 52.

[0113] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the drawings are only examples and do not limit the present invention. The object of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention can have any deformation or modification without departing from the principle.

Claims

1. Sonar, characterized in that, Comprising: A sonar body; A shock-absorbing platform, wherein the shock-absorbing platform includes a bottom plate, a top plate and a set of shock-absorbing units. The bottom parts of the shock-absorbing units are respectively installed on the bottom plate, and the top parts of the shock-absorbing units are respectively installed on the top plate, so that the bottom plate is suspended below the top plate by each shock-absorbing unit. The sonar body is installed on the bottom plate and located in the space between the bottom plate and the top plate. Each shock-absorbing unit respectively includes an assembly frame, a rubber shock absorber, a bottom adapter plate, a wire rope shock absorber and a top adapter plate. The bottom of the assembly frame is installed on the bottom plate. The bottom adapter plate is installed on the top of the assembly frame through the rubber shock absorber. The bottom of the wire rope shock absorber is installed on the bottom adapter plate and the top is installed on the bottom of the top adapter plate. The top of the top adapter plate is installed on the top plate. The opposite sides of the top of the assembly frame respectively have locking arms and frame perforations. The frame perforations extend from the bottom to the top of the locking arms. The shock-absorbing unit includes two rubber shock absorbers. The rubber shock absorber includes a lower shock-absorbing part and an upper shock-absorbing part. The lower shock-absorbing part includes a lower shock-absorbing cylinder and a lower insertion cylinder with an outer diameter smaller than that of the lower shock-absorbing cylinder. The outer diameter of the lower insertion cylinder is the same as the inner diameter of the frame perforation of the assembly frame. The lower insertion cylinder is inserted into the frame perforation of the assembly frame from bottom to top. The lower shock-absorbing cylinder is stacked on the bottom of the locking arm. The upper shock-absorbing part includes an upper shock-absorbing cylinder and an upper insertion cylinder with an outer diameter smaller than that of the upper shock-absorbing cylinder. The outer diameter of the upper insertion cylinder is the same as the inner diameter of the frame perforation of the assembly frame. The upper insertion cylinder is inserted into the frame perforation of the assembly frame from top to bottom. The upper shock-absorbing cylinder is stacked on the top of the locking arm. Thus, the middle part of the rubber shock absorber is installed in the frame perforation of the assembly frame, and the opposite ends of the rubber shock absorber respectively protrude from the bottom and the top of the locking arm. The opposite ends of the bottom adapter plate are respectively supported by the upper shock-absorbing cylinders of the two rubber shock absorbers. The positions of the bottom adapter plate threaded holes of the bottom adapter plate correspond to the positions of the shock absorber perforations of the rubber shock absorbers. The threaded ends of the respective screws extend to the respective bottom adapter threaded holes of the bottom adapter plate after passing through the shock absorber perforations of the rubber shock absorbers and are screwed to the bottom adapter plate; A watertight cabin, wherein the watertight cabin has a cabin cavity and a bottom opening, a top channel and two pairs of cabin wall perforations respectively communicating with the cabin cavity; A lifting assembly, wherein the lifting assembly includes a receiving cylinder and a lifting rod telescopically arranged in the receiving cylinder. The bottom of the receiving cylinder is installed above the watertight cabin. The lifting rod extends into the cabin cavity of the watertight cabin through the top channel of the watertight cabin. The top plate of the shock-absorbing platform is arranged on the lifting rod; A transmission assembly, wherein the transmission assembly includes two transmission shafts, opposite ends of one of the transmission shafts are respectively rotatably mounted in a pair of the bulkhead perforations of the watertight compartment, and opposite ends of the other transmission shaft are respectively rotatably mounted in another pair of the bulkhead perforations of the watertight compartment, and the lifting rod of the lifting assembly is located between the two transmission shafts; Two link assemblies, wherein each of the link assemblies includes an upper link and a lower link, one end of the upper link and one end of the lower link are rotatably mounted, the other end of the upper link is fixedly mounted on the transmission shaft, and the other end of the lower link is rotatably mounted on the top plate of the shock-absorbing platform.

2. The sonar according to claim 1, characterized in that, The lifting rod has a first rod body weak point.

3. The sonar according to claim 2, characterized in that, The upper link or the lower link has a second rod body weak point.

4. The sonar according to claim 2, wherein, The size of the part of the lifting rod where the first rod body weak point is provided is smaller than the size of other parts of the lifting rod.

5. The sonar according to claim 3, characterized in that, The size of the part of the upper link or the lower link where the second rod body weak point is provided is smaller than the size of other parts of the upper link or the lower link.

6. The sonar according to any one of claims 1 to 5, characterized in that, The sonar includes a driving assembly, the driving assembly includes a driving rod and a handwheel disposed at one end of the driving rod, and end portions of the two transmission shafts extending to the outside of the watertight compartment through the bulkhead perforations of the watertight compartment are respectively drivingly connected to the driving rod.

7. The sonar according to any one of claims 1 to 5, characterized in that, The sonar includes a watertight plug, the watertight plug is disposed in the watertight compartment, and the watertight cable of the sonar body is inserted into the watertight plug.

8. A disposable shock-absorbing mechanism for installing a sonar body, characterized in that, Comprising: Vibration damping platform, wherein the vibration damping platform includes a bottom plate, a top plate and a set of vibration damping units. The bottoms of the vibration damping units are respectively mounted on the bottom plate, and the tops of the vibration damping units are respectively mounted on the top plate, so that the bottom plate is suspended below the top plate by the vibration damping units. The sonar body is mounted on the bottom plate and is located in the space between the bottom plate and the top plate. Each of the vibration damping units respectively includes an assembly frame, a rubber shock absorber, a bottom adapter plate, a wire rope shock absorber and a top adapter plate. The bottom of the assembly frame is mounted on the bottom plate. The bottom adapter plate is mounted on the top of the assembly frame through the rubber shock absorber. The bottom of the wire rope shock absorber is mounted on the bottom adapter plate, and the top is mounted on the bottom of the top adapter plate. The top of the top adapter plate is mounted on the top plate. The opposite sides of the top of the assembly frame respectively have locking arms and frame through holes. The frame through holes extend from the bottom to the top of the locking arms. The vibration damping unit includes two of the rubber shock absorbers. The rubber shock absorber includes a lower shock absorption part and an upper shock absorption part. The lower shock absorption part includes a lower shock absorption cylinder and a lower insertion cylinder with an outer diameter smaller than that of the lower shock absorption cylinder. The outer diameter of the lower insertion cylinder is the same as the inner diameter of the frame through hole of the assembly frame. The lower insertion cylinder is inserted into the frame through hole of the assembly frame from bottom to top. The lower shock absorption cylinder is stacked on the bottom of the locking arm. The upper shock absorption part includes an upper shock absorption cylinder and an upper insertion cylinder with an outer diameter smaller than that of the upper shock absorption cylinder. The outer diameter of the upper insertion cylinder is the same as the inner diameter of the frame through hole of the assembly frame. The upper insertion cylinder is inserted into the frame through hole of the assembly frame from top to bottom. The upper shock absorption cylinder is stacked on the top of the locking arm. Thus, the middle of the rubber shock absorber is mounted in the frame through hole of the assembly frame, and the opposite ends of the rubber shock absorber respectively protrude from the bottom and the top of the locking arm. The opposite ends of the bottom adapter plate are respectively supported by the upper shock absorption cylinders of the two rubber shock absorbers. The positions of the bottom adapter plate threaded holes of the bottom adapter plate correspond to the positions of the shock absorber through holes of the rubber shock absorbers. The threaded ends of the respective screws extend to the respective bottom adapter threaded holes of the bottom adapter plate after passing through the shock absorber through holes of the rubber shock absorbers, and are screwed to the bottom adapter plate; Watertight compartment, wherein the watertight compartment has a compartment cavity, a bottom opening, a top passage and two pairs of bulkhead through holes respectively communicating with the compartment cavity; Lifting assembly, wherein the lifting assembly includes a receiving cylinder and a lifting rod telescopically arranged in the receiving cylinder. The bottom of the receiving cylinder is mounted above the watertight compartment. The lifting rod extends into the compartment cavity of the watertight compartment through the top passage of the watertight compartment. The top plate of the vibration damping platform is arranged on the lifting rod. The lifting rod has a first rod body weak point; The drive assembly, wherein the drive assembly includes two drive shafts, opposite ends of one of the drive shafts are respectively rotatably mounted on a pair of the bulkhead perforations of the watertight compartment, and opposite ends of the other drive shaft are respectively rotatably mounted on another pair of the bulkhead perforations of the watertight compartment, wherein the lifting rod of the lifting assembly is located between the two drive shafts; Two link assemblies, wherein each of the link assemblies respectively includes an upper link and a lower link, one end of the upper link and one end of the lower link are rotatably mounted, the other end of the upper link is fixedly mounted on the drive shaft, and the other end of the lower link is rotatably mounted on the top plate of the shock-absorbing platform, wherein the upper link or the lower link has a second rod body weak point.

9. The disposable shock-absorbing mechanism according to claim 8, characterized in that, The size of the part of the lifting rod provided with the first rod body weak point is smaller than the size of other parts of the lifting rod, and the size of the part of the upper link or the lower link provided with the second rod body weak point is smaller than the size of other parts of the upper link or the lower link.

10. The disposable shock-absorbing mechanism according to claim 8, wherein, The disposable shock-absorbing mechanism includes a watertight plug, and the watertight plug is arranged in the watertight compartment.

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