Sonar and disposable damping mechanism

Abstract

The invention discloses a sonar and a disposable damping mechanism, and relates to the technical field of underwater detection.The sonar comprises a watertight compartment, a lifting assembly, a transmission assembly, a connecting rod assembly, a damping platform and a sonar body arranged on the damping platform, and the lifting assembly comprises a containing cylinder and a lifting rod telescopically arranged in the containing cylinder; the bottom of the containing cylinder is installed above the watertight compartment, the lifting rod extends to a compartment cavity through a top channel of the watertight compartment, the damping platform is arranged on the lifting rod, and the two opposite ends of a transmission shaft of the transmission assembly are rotationally installed in compartment wall penetrating holes of the watertight compartment respectively. The connecting rod assembly comprises an upper connecting rod and a lower connecting rod which are rotatably installed, the end, away from the lower connecting rod, of the upper connecting rod is fixedly installed on the transmission shaft, and the end, away from the upper connecting rod, of the lower connecting rod is rotatably installed on the damping platform. By rotating the transmission shaft, the sonar can be switched between a recovery state and a detection state.

Description

Technical Field

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

[0002] In the Chinese invention patent application with application announcement number CN118182710A, an auxiliary mechanism for underwater ultrasonic detection device is disclosed, which can realize the lifting and lowering of sonar. The specific scheme adopted by the auxiliary mechanism is: the electric cylinder has a hollow annular space, the output cylinder barrel of the electric cylinder is located in the hollow annular space, the lower end of the output cylinder barrel is connected to the platform through a hinge that only allows rotation around the y-axis, the output cylinder barrel of the electric cylinder has an anti-rotation function, the output cylinder barrel has a hollow annular space, a small electric cylinder is installed in the hollow annular space, and 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 length of the hinge from the hinge is S, and the line connecting the hinge and the hinge 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 realize the linear movement and rotation of the platform on which the sonar device is installed, that is, using the electric cylinder to realize linear movement and using the small electric cylinder to realize pitch rotation. The lower end of the hollow annular space of the electric cylinder is fixedly installed with a cabin. The hatch is connected to the lower opening of the cabin by a hinge, and the hatch 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 fixed to the end of the output cylinder by a hinge, and the lower end of the connecting rod is installed in the middle of the hatch by a hinge. When the output cylinder is extended downward, the output cylinder pushes the connecting rod to move downward and rotate around the hinge at the same time, so that the connecting rod pushes the hatch to rotate around the hinge, thereby pushing the hatch open and opening the cabin. The output cylinder extends to the outside 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 to move upward and rotates around the hinge at the same time, so that the connecting rod pulls the hatch to rotate around the hinge, thereby pulling the hatch back and closing the cabin. The output cylinder retracts to the inside of 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 hatch door. The defects of the prior art are that the lifting mechanism is complex and the reliability is poor. In addition, 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 the shock absorbing platform of the sonar can provide a shock absorbing function for the sonar body to reduce the impact of vibration on the sonar body, thereby ensuring the detection accuracy of the sonar body.

[0005] One 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 lateral force, the lifting rod of the sonar's lifting assembly and the upper connecting rod or the lower connecting rod of the connecting rod assembly can break, so as to discard the shock absorbing platform and the sonar body, so as to avoid stress on the welding positions of the submersible or hull and the watertight compartment, thereby avoiding tearing of the welding positions of the submersible or hull and the watertight compartment and protecting the submersible or hull.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is to provide a sonar, which includes: Shock-absorbing platform; A sonar body, wherein the sonar body is arranged on the shock absorbing platform; A watertight compartment, wherein the watertight compartment has a compartment cavity and a bottom opening, a top passage and two pairs of bulkhead perforations respectively connected to the compartment cavity; A lifting assembly, wherein the lifting assembly comprises a receiving tube and a lifting rod telescopically arranged on the receiving tube, the bottom of the receiving tube is installed above the watertight compartment, the lifting rod extends to the cabin of the watertight compartment through the top channel of the watertight compartment, and the shock absorbing platform is arranged on the lifting rod; A transmission assembly, wherein the transmission assembly comprises two transmission shafts, the opposite ends of one transmission shaft are rotatably mounted on a pair of bulkhead through-holes of the watertight compartment, and the opposite ends of the other transmission shaft are rotatably mounted on another pair of bulkhead through-holes of the watertight compartment; Two connecting rod assemblies, wherein each connecting rod assembly 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 mounted, the other end of the upper connecting rod is fixedly mounted on the transmission shaft, and the other end of the lower connecting rod is rotatably mounted on the shock absorbing platform.

[0007] As a further improvement to the technical solution of the present invention, the lifting rod has a first rod body weak point.

[0008] 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.

[0009] As a further improvement to the technical solution of the present invention, the size of the portion of the lifting rod where the first rod body weak point is provided is smaller than the size of other portions of the lifting rod.

[0010] As a further improvement to the technical solution of the present invention, the size of the portion 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 portions of the upper connecting rod or the lower connecting rod.

[0011] As a further improvement to the technical solution of the present invention, the sonar includes a driving assembly, which includes a driving rod and a handwheel arranged at one end of the driving rod, and the ends of the two transmission shafts extending to the outside of the watertight compartment through the bulkhead perforations of the watertight compartment are respectively drivably connected to the driving rod.

[0012] As a further improvement to the technical solution of the present invention, the sonar includes a watertight plug, the watertight plug is arranged in the watertight compartment, and the watertight cable of the sonar body is inserted into the watertight plug.

[0013] According to another aspect of the present invention, the present invention further provides a disposable shock absorbing mechanism, which comprises: Shock-absorbing platform; A watertight compartment, wherein the watertight compartment has a compartment cavity and a bottom opening, a top passage and two pairs of bulkhead perforations respectively connected to the compartment cavity; A lifting assembly, wherein the lifting assembly comprises a receiving tube and a lifting rod telescopically arranged on the receiving tube, the bottom of the receiving tube is installed above the watertight compartment, the lifting rod extends to the cabin of the watertight compartment through the top channel of the watertight compartment, the shock absorbing platform is arranged on the lifting rod, and the lifting rod has a first rod body vulnerable point; A transmission assembly, wherein the transmission assembly comprises two transmission shafts, the opposite ends of one transmission shaft are rotatably mounted on a pair of bulkhead through-holes of the watertight compartment, and the opposite ends of the other transmission shaft are rotatably mounted on another pair of bulkhead through-holes of the watertight compartment; Two connecting rod assemblies, wherein each connecting rod assembly 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 mounted, the other end of the upper connecting rod is fixedly mounted on the transmission shaft, and the other end of the lower connecting rod is rotatably mounted on the shock absorbing platform, wherein the upper connecting rod or the lower connecting rod has a second rod body weak point.

[0014] As a further improvement to the technical solution of the present invention, the size of the portion of the lifting rod where the first rod body weak point is provided is smaller than the sizes of other portions of the lifting rod, and the size of the portion of the upper connecting rod or the lower connecting rod where the second rod body weak point is provided is smaller than the sizes of other portions of the upper connecting rod or the lower connecting rod.

[0015] As a further improvement to the technical solution of the present invention, the disposable shock absorbing mechanism includes a watertight plug, and the watertight plug is arranged in the watertight compartment.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects: 1. When the two transmission shafts of the transmission assembly rotate, the two transmission shafts can realize the lifting and lowering of the shock absorbing platform and the sonar body arranged on the shock absorbing platform through the two connecting rod assemblies, so that the sonar can be switched 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 compartment, so that not only the sonar body but also the submersible or the hull can be protected; 2. By placing the sonar body on the shock-absorbing platform, when the submersible or the hull vibrates, the shock-absorbing platform can weaken the influence of the vibration on the sonar body, so as to ensure the detection accuracy of the sonar body; 3. The lifting rod of the lifting assembly is provided with the first rod body fragile point. When the sonar is in the detection state and the component force of the resistance exerted on the lifting rod by the shock absorbing platform and the sonar body is greater than the bearing capacity of the first rod body fragile point of the lifting rod, the lifting rod breaks at the first rod body fragile point, so that the sonar can abandon the shock absorbing platform and the sonar body, thereby protecting the submersible or the hull; 4. The upper connecting rod or the lower connecting rod of the connecting rod assembly is provided with a weak point of the second rod body. After the lifting rod breaks, the upper connecting rod or the lower connecting rod breaks at the weak point of the second rod body to ensure that the sonar abandons the shock absorbing platform and the sonar body, thereby protecting the submersible or the hull.

[0017] 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 a position 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 cross-sectional schematic diagram of another position of the sonar according to the above preferred embodiment of the present invention when it is in a detection state.

[0021] Figure 4It 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.

[0022] Figure 5 It is a cross-sectional schematic diagram of a position of the sonar according to the above preferred embodiment of the present invention when it is in a recovery state.

[0023] Figure 6 It is a three-dimensional schematic diagram of a local structure of the sonar according to the above preferred embodiment of the present invention.

[0024] Figure 7 yes Figure 6 A magnified view of the local location.

[0025] Figure 8 It is a stereoscopic schematic diagram from one perspective of a shock absorbing platform of the sonar according to the above preferred embodiment of the present invention.

[0026] Fig. 9 It is a stereoscopic schematic diagram from another perspective of the shock absorbing platform of the sonar according to the above preferred embodiment of the present invention.

[0027] Fig.10 It is a cross-sectional schematic diagram of a position of the shock absorbing platform of the sonar according to the above preferred embodiment of the present invention.

[0028] Fig.11 It is a cross-sectional schematic diagram of another position of the shock absorbing platform of the sonar according to the above preferred embodiment of the present invention.

[0029] Fig.12 It is a schematic top view of a local position of the shock absorbing platform of the sonar according to the above preferred embodiment of the present invention.

[0030] Fig.13 It is a three-dimensional schematic diagram of one of the assembly steps of the shock absorbing platform of the sonar according to the above preferred embodiment of the present invention.

[0031] Fig.14 It is a three-dimensional schematic diagram of the second assembly step of the shock absorbing platform of the sonar according to the above preferred embodiment of the present invention.

[0032] Fig.15 It is a three-dimensional schematic diagram of the third assembly step of the shock absorbing platform of the sonar according to the above preferred embodiment of the present invention.

[0033] Fig.16 It is a three-dimensional schematic diagram of the fourth assembly step of the shock absorbing platform of the sonar according to the above preferred embodiment of the present invention.

[0034] Fig.17It is a three-dimensional schematic diagram of the fifth assembly step of the shock absorbing platform of the sonar according to the above preferred embodiment of the present invention.

[0035] Fig.18 It is a three-dimensional schematic diagram of the sixth assembly step of the shock absorbing platform of the sonar according to the above preferred embodiment of the present invention.

[0036] Fig.19 It is a three-dimensional schematic diagram of the seventh assembly step of the shock absorbing platform of the sonar according to the above preferred embodiment of the present invention.

[0037] In the figure: 10. Watertight compartment; 11. Cabin cavity; 12. Bottom opening; 13. Top passage; 14. Bulkhead penetration; 20. lifting assembly; 21. receiving tube; 22. lifting rod; 221. first rod body weak point; 222. first rod body annular groove; 30. Transmission assembly; 31. Transmission shaft; 32. Waterproof sealed bearing; 40. connecting rod assembly; 41. upper connecting rod; 411. second rod body weak point; 412. second rod body annular groove; 42. lower connecting rod; 50. shock-absorbing platform; 51. bottom plate; 511. bottom plate screw hole; 52. top plate; 521. top plate screw hole; 522. top plate through hole; 53. shock-absorbing unit; 5301. rear shock-absorbing unit; 5302. side shock-absorbing unit; 531. assembly frame; 5311. frame threaded hole; 5312. locking arm; 5313. frame through hole; 532. rubber shock absorber; 5321. shock absorber through hole; 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. connection Parts; 53241, connecting tube; 53242, connecting ring; 5325, metal gasket; 53251, gasket perforation; 533, bottom adapter plate; 5331, bottom adapter plate threaded 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 threaded hole; 5342, top extension arm; 53421, top arm body perforation; 53422, top arm body threaded hole; 5343, wire rope spiral; 535, top adapter plate; 5351, top adapter plate screw hole; 5352, top adapter plate threaded hole; 60. Sonar body; 61. Transmitting cabin; 62. Receiving cabin; 63. Watertight cable; 64. Body threaded hole; 70. driving assembly; 71. driving rod; 72. hand wheel; 80. Watertight plug; 100. Submersible vehicle or hull; 101. Assembly opening; 200. Screw. DETAILED DESCRIPTION

[0038] 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.

[0039] 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.

[0040] With reference to the accompanying drawings of the present invention Figures 1 to 19 A sonar 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, at least one lifting assembly 20, a transmission assembly 30, two connecting rod assemblies 40, a shock absorbing platform 50 and a sonar body 60.

[0041] Specifically, refer to the attached Figures 3 to 5 The watertight compartment 10 can be arranged at the bottom of a submersible or a hull 100, wherein the watertight compartment 10 has a cabin cavity 11, a bottom opening 12, at least one top channel 13 and two pairs of bulkhead perforations 14, and the bottom opening 12, the top channel 13 and the bulkhead perforations 14 are respectively connected to the cabin cavity 11.

[0042] In a specific example of the sonar of the present invention, the bottom of the submersible or hull 100 is provided with 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, and after the edge of the bottom opening 12 of the watertight compartment 10 is inserted into the assembly opening 101 of the submersible or hull 100, the watertight compartment 10 and the submersible or hull 100 are welded to set the watertight compartment 10 at the bottom of the submersible or hull 100. It can be understood that 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.

[0043] The lifting assembly 20 includes a receiving tube 21 and a lifting rod 22 which is telescopically arranged on the receiving tube 21. The bottom of the receiving tube 21 is installed above the watertight compartment 10, and the lifting rod 22 extends to the cabin 11 of the watertight compartment 10 through the top channel 13 of the watertight compartment 10. It is worth mentioning that the installation method of the bottom of the receiving tube 21 and the watertight compartment 10 is not limited in the sonar of the present invention, as long as the receiving tube 21 can be stably arranged above the watertight compartment 10 and the receiving tube 21 seals the top channel 13 of the watertight compartment 10. For example, the sonar can set a sealing ring between the bottom surface of the receiving tube 21 and the top surface of the watertight compartment 10, and use a set of screws 200 to lock the receiving tube 21 and the watertight compartment 10.

[0044] In the attached Figures 1 to 19 In this specific example of the sonar of the present invention shown, the watertight compartment 10 has two top channels 13, and accordingly, the number of the lifting assemblies 20 is two, and the lifting rods 22 of each lifting assembly 20 extend to the cabin cavity 11 of the watertight compartment 10 through each top channel 13 of the watertight compartment 10, respectively.

[0045] The transmission assembly 30 includes two transmission shafts 31, the opposite ends of one transmission shaft 31 are rotatably mounted on a pair of bulkhead through-holes 14 of the watertight compartment 10, and the opposite ends of the other transmission shaft 31 are rotatably mounted on another pair of bulkhead through-holes 14 of the watertight compartment 10, so that the main parts of the two transmission shafts 31 are rotatably retained in the cabin 11 of the watertight compartment 10. The lifting rod 22 of the lifting assembly 20 is located between the two transmission shafts 31, so that the two transmission shafts 31 can have a larger distance between them.

[0046] In order to ensure the watertightness between the end of the transmission shaft 31 and the watertight compartment 10, refer to the attached Figure 2 , Figure 3 , Figure 5 and Figure 6 The transmission assembly 30 includes two pairs of waterproof sealed bearings 32, and the opposite ends of the transmission shaft 31 are respectively covered with the waterproof sealed bearings 32, and the waterproof sealed bearings 32 are watertightly installed in the bulkhead perforation 14 of the watertight compartment 10. In this way, the waterproof sealed bearings 32 can not only make the end of the transmission shaft 31 rotate relative to the watertight compartment 10, but also ensure the watertightness between the end of the transmission shaft 31 and the watertight compartment 10.

[0047] Each of the connecting rod assemblies 40 includes an upper connecting rod 41 and a lower connecting rod 42, one end of the upper connecting rod 41 and one end of the lower connecting rod 42 are rotatably mounted, the other end of the upper connecting rod 41 (i.e., the end of the upper connecting rod 41 away from the lower connecting rod 42) is fixedly mounted on the transmission shaft 31, the other end of the lower connecting rod 42 (i.e., the end of the lower connecting rod 42 away from the upper connecting rod 41) is rotatably mounted on the shock absorbing platform 50, and the shock absorbing platform 50 is mounted on the lifting rod 22, and the sonar body 60 is arranged on the shock absorbing platform 50.

[0048] When the two transmission shafts 31 rotate inward, the two transmission shafts 31 respectively drive the upper connecting rods 41 of the two connecting rod assemblies 40 to swing upward synchronously. In this process, while the upper connecting rod 41 pulls the lower connecting rod 42 to swing upward, one end of the lower connecting rod 42 rotates around the mounting axis of the upper connecting rod 41 and the lower connecting rod 42, and the other end of the lower connecting rod 42 rotates around the mounting axis of the lower connecting rod 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 retract, and the sonar body 60 is recovered to the cabin cavity 11 of the watertight compartment 10, so that the sonar is in the recovery state. Correspondingly, when the two transmission shafts 31 rotate outward, the two transmission shafts 31 respectively drive the upper connecting rods 41 of the two connecting rod assemblies 40 to swing downward synchronously. In this process, while the upper connecting rod 41 pushes the lower connecting rod 42 to swing downward, one end of the lower connecting rod 42 rotates around the mounting axis of the upper connecting rod 41 and the lower connecting rod 42, and the other end of the lower connecting rod 42 rotates around the mounting axis of the lower connecting rod 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 outward, and the sonar body 60 is released, so that the sonar is in the detection state.

[0049] It can be understood that when the sonar is in the recovery state, the sonar body 60 and the shock absorbing platform 50 are both hidden in the cabin 11 of the watertight compartment 10. In this way, when the submersible or hull 100 is sailing, the sonar body 60 can be protected to avoid collision. On the other hand, when the submersible or hull 100 is sailing at high speed, the sonar body 60 and the shock absorbing platform 50 will not provide water resistance to avoid the watertight compartment 10 from being stressed, thereby avoiding stress on the welding position of the watertight compartment 10 and the submersible or hull 100, and further avoiding tearing of the welding position of the watertight compartment 10 and the submersible or hull 100 to protect the submersible or hull 100, which is crucial to the navigation safety of the submersible or hull 100.

[0050] 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 60 and the shock absorbing platform 50 are suspended below the submersible or hull 100, the sonar body 60 and the shock absorbing platform 50 will inevitably provide water resistance. The force causes the welding position of the watertight compartment 10 and the submersible or hull 100 to be 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 for the welding position of the watertight compartment 10 and the submersible or hull 100 to tear. 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 60 and the shock absorbing platform 50 by driving the transmission shaft 31 to rotate. It can be understood that after the sonar recovers 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 compartment 10 to prevent the sonar body 60 from being collided or entangled by other objects (for example, water plants, kelp), etc., so as to protect the sonar body 60.

[0051] When the sonar is in the detection state, the sonar body 60 and the shock absorbing platform 50 are suspended below the submersible or the hull 100 to detect the underwater environment, wherein the lifting assembly 20 is used to resist the resistance of the seawater on the shock absorbing platform 50 and the sonar body 60 to prevent the sonar body 60 from tilting. In this process, if the submersible or the hull 100 is hit or vibrated for other reasons, the shock absorbing platform 50 can weaken the impact of the vibration on the sonar body 60, thereby ensuring the detection accuracy of the sonar body 60.

[0052] Preferably, the lower connecting rods 42 of the two connecting rod assemblies 40 are rotatably mounted on the shock absorbing platform 50 at two diagonal corners of the shock absorbing platform 50. Figure 2 From the perspective shown, the end of the upper connecting rod 41 of one connecting rod assembly 40 that is away from the lower connecting rod 42 is fixedly mounted on the left end of one of the transmission shafts 31, and the end of the lower connecting rod 42 of this connecting rod assembly 40 that is away from the upper connecting rod 41 is rotatably mounted on the left front corner of the shock absorbing platform 50; the end of the upper connecting rod 41 of another connecting rod assembly 40 that is away from the lower connecting rod 42 is fixedly mounted on the right end of another of the transmission shafts 31, and the end of the lower connecting rod 42 of this connecting rod assembly 40 that is away from the upper connecting rod 41 is rotatably mounted on the right rear corner of the shock absorbing platform 50. In this way, during the lifting and lowering process of the shock absorbing platform 50 and the sonar body 60, the two connecting rod assemblies 40 can prevent the shock absorbing platform 50 and the sonar body 60 from tilting, and at the same time, the sonar can prevent the two connecting rod assemblies 40 from interfering with and colliding with each other.

[0053] Continue to refer to the attached Figures 1 to 6The sonar further comprises a driving assembly 70, the driving assembly 70 comprises a driving rod 71 and a hand wheel 72 arranged at one end of the driving rod 71, and the ends of the two transmission shafts 31 extending to the outside of the watertight compartment 10 through the bulkhead through hole 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 engaged, so that the ends of the transmission shafts 31 are drivably connected to the driving rod 71. When the hand wheel 72 is turned in one direction to rotate the driving rod 71, the driving rod 71 can drive the two transmission shafts 31 to rotate inwardly to recover the sonar body 60 and switch the sonar from the detection state to the recovery state, and when the hand wheel 72 is turned in another direction to rotate the driving rod 71, the driving rod 71 can drive the two transmission shafts 31 to rotate outwardly 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.

[0054] Continue to refer to the attached Figures 1 to 6 , the sonar further includes a watertight plug 80, which is arranged in the watertight compartment 10. The sonar body 60 includes a transmitting compartment 61, a receiving compartment 62 and a watertight cable 63, the transmitting compartment 61 includes a transmitting transducer for generating and transmitting acoustic signals, the receiving compartment 62 includes a receiving transducer for receiving and processing the reflected acoustic signals, one end of the watertight cable 63 is arranged in the receiving compartment 62 and connected to the circuits of the transmitting compartment 61 and the receiving compartment 62, and the other end is inserted into the watertight plug 80, the cable of the submersible or hull 100 is inserted into the watertight plug 80, so that 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 hull 100, so that the control unit of the sonar body 60 and the submersible or hull 100 can be connected.

[0055] When the sonar is in the detection state, in an emergency, the submersible or 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 hull 100 is sailing at high speed, the shock absorbing platform 50 and the sonar body 60 are still suspended under the submersible or hull 100. At this time, the shock absorbing platform 50 and the sonar body 60 will be subject to large resistance, and the component force of the resistance will be applied to the lifting rod 22 and further applied to the watertight compartment 10, causing the welding position of the watertight compartment 10 and the submersible or hull 100 to be stressed, thereby causing the welding position of the watertight compartment 10 and the submersible or hull 100 to be torn. Risk, posing a serious safety hazard to the submersible or hull 100. Therefore, in order to avoid the welding positions of the watertight compartment 10 and the submersible or hull 100 from being torn when the sonar does not have time to switch to the recovery state, the lifting rod 22 of the lifting assembly 20 of the sonar of the present invention is provided with a first rod body fragile point 221. When the component force of the resistance exerted on the lifting rod 22 by the resistance to the shock absorbing platform 50 and the sonar body 60 is greater than the bearing capacity of the first rod body fragile point 221 of the lifting rod 22, the lifting rod 22 breaks at the first rod body fragile point 221, so that the sonar can abandon the shock absorbing platform 50 and the sonar body 60, thereby protecting the submersible or hull 100.

[0056] When the lifting rod 22 is partially broken at the first rod body weak point 221, in order to ensure that the shock absorbing platform 50 and the sonar body 60 are completely abandoned and not dragged, in one 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. When the lifting rod 22 is partially broken at the first rod body weak point 221, the upper connecting rod 41 is subjected to the lateral force and continuously breaks at the second rod body weak point 411, so as to ensure that the sonar abandons the shock absorbing platform 50 and the sonar body 60, thereby protecting the submersible or hull 100. It can be understood that since the watertight cable 63 and the watertight plug 80 of the sonar body 60 are plug-in, after the lifting rod 22 is broken at the first rod body weak point 221 and the upper connecting rod 41 is broken at 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 may also be set on the lower connecting rod 42.

[0057] Reference Figure 6 and Figure 7, the size of the portion of the lifting rod 22 where the first rod body fragile point 221 is provided is smaller than the size of other portions of the lifting rod 22, so that when the lifting rod 22 is subjected to a lateral force, the bearing capacity of the lifting rod 22 at the first rod body fragile point 221 is reduced, so that the lifting rod 22 can be broken at the portion of the first rod body fragile point 221. Preferably, the lifting rod 22 has a first rod body annular groove 222, and the first rod body fragile point 221 is formed at the position of the lifting rod 22 where the first rod body annular groove 222 is provided.

[0058] Continue to refer to the attached Figure 6 and Figure 7 , the size of the portion of the upper connecting rod 41 where the second rod body weak point 411 is provided is smaller than the size of other portions of the upper connecting rod 41, so that when the upper connecting rod 41 is subjected to a lateral force, 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 be broken at the portion 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 where the second rod body annular groove 412 is provided.

[0059] It can be understood that the watertight compartment 10, the lifting assembly 20, the transmission assembly 30, the connecting rod 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 connecting rod assembly 40 and the shock absorbing platform 50, wherein the watertight compartment 10 has the cabin cavity 11 and the bottom opening 12, the top channel 13 and the bulkhead perforation 14 respectively connected to the cabin cavity 11, wherein the lifting assembly 20 includes the receiving tube 21 and the lifting rod 22 which is telescopically arranged on the receiving tube 21, the bottom of the receiving tube 21 is installed above the watertight compartment 10, the lifting rod 22 extends to the cabin cavity 11 of the watertight compartment 10 through the top channel 13 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 vulnerable point 221, wherein the transmission assembly 30 is provided on the lifting rod 22, and the lifting rod 22 has the first rod body vulnerable point 221. The dynamic assembly 30 includes two transmission shafts 31, and the opposite ends of one transmission shaft 31 are rotatably mounted on a pair of bulkhead penetration holes 14 of the watertight compartment 10, and the opposite ends of the other transmission shaft 31 are rotatably mounted on another pair of bulkhead penetration holes 14 of the watertight compartment 10, wherein the number of the connecting rod assemblies 40 is two, and each connecting rod assembly 40 includes the upper connecting rod 41 and the lower connecting rod 42, respectively, one end of the upper connecting rod 41 and one end of the lower connecting rod 42 are rotatably mounted, the other end of the upper connecting rod 41 is fixedly mounted on the transmission shaft 31, and the other end of the lower connecting rod 42 is rotatably mounted on the shock absorbing platform 50, wherein the upper connecting rod 41 or the lower connecting rod 42 has the second rod body fragile point 411. In an emergency, the lifting rod 22 can break at the first rod body's fragile point 221, and the upper connecting rod 41 or the lower connecting rod 42 can break at the second rod body's fragile point 411, so that the shock absorbing platform 50 is abandoned, and the sonar body 60 installed on the shock absorbing platform 50 is synchronously abandoned.

[0060] Attached Figures 8 to 19 The specific structure and assembly steps of the shock absorbing platform 50 are shown.

[0061] Specifically, the shock absorbing platform 50 includes a bottom plate 51, a top plate 52 and a group of shock absorbing units 53, the bottom of each shock absorbing unit 53 is respectively installed on the bottom plate 51, and the top of each shock absorbing unit 53 is respectively installed on the top plate 52, so that the bottom plate 51 is suspended below the top plate 52 by each shock absorbing unit 53, wherein 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.

[0062] Preferably, the sonar body 60 is mounted on the bottom plate 51 through at least one screw rod 200. Specifically, the bottom plate 51 has a series of bottom plate screw rod 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 rod hole 511 in the middle of the bottom plate 51, and the threaded end of the screw rod 200 extends to the body threaded hole 64 of the sonar body 60 after passing through the bottom plate screw rod hole 511 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 mounted on the bottom plate 51 through the screw rod 200. Preferably, the sonar body 60 is mounted on the bottom plate 51 through the two 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 , thereby setting the sonar body 60 on the shock absorbing platform 50 .

[0063] The top plate 52 of the shock absorbing platform 50 is installed at the ends of the lifting rod 22 and the lower connecting rod 42 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 compartment 10, the lifting rod 22 and the connecting rod assembly 40, so that the top plate 52 vibrates, and the various shock absorbing units 53 cooperate with each other to effectively weaken the vibration and prevent the vibration from being transmitted to the bottom plate 51, thereby reducing the influence of the vibration on the sonar body 60 installed on the bottom plate 51, so as to ensure the detection accuracy of the sonar body 60.

[0064] In a specific example of the sonar of the present invention, the number of the shock absorbing units 53 is three, and the three shock absorbing units 53 are respectively a rear shock absorbing unit 5301 and two side shock absorbing units 5302, the rear shock absorbing unit 5301 is arranged at the rear, and the two side shock absorbing units 5302 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 5301 and perpendicular to the rear shock absorbing unit 5301, passing through one of the side shock absorbing units 5 A straight line L2 passing through the center of gravity of the other side shock absorbing unit 5302 and perpendicular to the 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 the 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 one point. In this way, a group of shock absorbing units 53 can ensure the balanced force of the sonar body 60 on the basis of ensuring the weakening effect of the vibration. See attached Fig.12 .

[0065] Reference Figures 8 to 19 Each of the shock absorbing units 53 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, wherein the bottom of the assembly frame 531 is installed on the bottom plate 51, wherein the bottom adapter plate 533 is installed on the top of the assembly frame 531 through the rubber shock absorber 532, wherein 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, wherein the top of the top adapter plate 535 is installed on the top plate 52, in this way, the bottom of the shock absorbing unit 53 is installed on the bottom plate 51, and the top of the shock absorbing unit 53 is installed on the top plate 52, so that each of the shock absorbing units 53 is used to suspend the bottom plate 51 below the top plate 52.

[0066] That is to say, the rubber shock absorber 532 isolates the assembly frame 531 and the bottom adapter plate 533, and the rubber shock absorber 532 prevents the assembly frame 531 and the bottom adapter plate 533 from direct contact, and 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 direct contact.

[0067] 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, but a bottom adapter plate 533 is arranged between the rubber shock absorber 532 and the wire rope shock absorber 534, and the top of the wire rope shock absorber 534 is not directly mounted on the top plate 52, but a top adapter plate 535 is arranged between the wire rope shock absorber 534 and the top plate 52. In this way, firstly, it is beneficial to improve the effect of the wire rope shock absorber 534 on weakening the low-frequency part of the vibration transmitted to the top plate 52 and the effect of the rubber shock absorber 532 on weakening the low-frequency part of the vibration transmitted to the top plate 52. The effect of the high frequency part of the vibration in the top plate 52 is led to improve the shock absorbing effect of the shock absorbing platform 50. Secondly, 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. Thirdly, in the case where the rubber shock absorber 532 and the wire rope shock absorber 534 are used as standard parts, it is only necessary to replace the bottom adapter plate 533 and the top adapter plate 535 with different thicknesses according to the height size of the sonar body 60 to meet the height requirement of the sonar body 60. It can be understood that the shock absorbing platform 50 can also replace the assembly frame 531 with different height sizes.

[0068] Reference Fig.11 The bottom of the assembly frame 531 has at least one frame threaded hole 5311, and the position of the frame threaded hole 5311 of the assembly 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 threaded hole 5311 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 200 is screwed to the assembly frame 531 to install the bottom of the assembly frame 531 on the bottom plate 51. Preferably, the bottom of the assembly frame 531 has four frame threaded holes 5311, and accordingly, the threaded ends of the four screw rods 200 extend to the four frame threaded holes 5311 of the assembly frame 531 after respectively passing through the four bottom plate screw holes 511 located at the edge position of the bottom plate 51, and the threaded ends of the screw rods 200 are screwed to the assembly frame 531, so that the assembly frame 531 is reliably mounted on the bottom plate 51.

[0069] Continue to refer to the attached Fig.10 and Fig.11The top of the assembly frame 531 has a locking arm 5312 and two frame through holes 5313 on opposite sides, and each locking arm 5312 of the assembly frame 531 has a frame through hole 5313, which extends from the bottom to the top of the locking arm 5312. The shock absorbing unit 53 includes two rubber shock absorbers 532, the middle of each rubber shock absorber 532 is respectively installed on each frame through hole 5313 of the assembly frame 531, and the opposite ends of the rubber shock absorber 532 protrude from the bottom and the top of the locking arm 5312, wherein the rubber shock absorber 532 has a shock absorber through hole 5321 that passes 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, and the position of each bottom adapter plate threaded hole 5331 of the bottom adapter plate 533 corresponds to the position of the shock absorber through hole 5321 of each rubber shock absorber 532. The threaded ends of the two screw rods 200 extend to the respective bottom adapter plate threaded holes 5331 of the bottom adapter plate 533 after respectively passing through the shock absorber through holes 5321 of the rubber shock absorbers 532, and the threaded ends of the screw rods 200 are screwed to the bottom adapter plate 533. In this way, the bottom adapter plate 533 is installed on the top of the assembly frame 531 through the rubber shock absorber 532, and the rubber shock absorber 532 isolates the screw rods 200 and the assembly frame 531 to effectively weaken the high-frequency part of the vibration.

[0070] Continue to refer to the attached Fig.10 and Fig.11The rubber shock absorber 532 includes a lower shock absorbing part 5322 and an upper shock absorbing part 5323. The lower shock absorbing part 5322 includes a lower shock absorbing tube 53221 and a lower insertion tube 53222 whose outer diameter is smaller than that of the lower shock absorbing tube 53221. The lower insertion tube 53222 extends upward from the lower shock absorbing tube 53221. The outer diameter of the lower insertion tube 53222 is consistent with the inner diameter of the frame through hole 5313 of the assembly frame 531. The lower insertion tube 53222 of the lower shock absorbing part 5322 is inserted into the frame through hole 5313 of the assembly frame 531 from bottom to top. The lower shock absorbing tube 53221 of the lower shock absorbing part 5322 is stacked on the bottom of the locking arm 5312 of the assembly frame 531. The upper shock absorbing part 5323 includes an upper shock absorbing tube 53231 and an upper insertion tube 53232 whose outer diameter is smaller than that of the upper shock absorbing tube 53231. The upper insertion tube 53232 extends downward from the upper shock absorbing tube 53231. The outer diameter of the upper insertion tube 53232 is consistent with the inner diameter of the frame through hole 5313 of the assembly frame 531. The upper insertion tube 53232 of the upper shock absorbing part 5323 is inserted into the frame through hole 5313 of the assembly frame 531 from top to bottom. The upper shock absorbing tube 53231 of the upper shock absorbing part 5323 is stacked on the top of the locking arm 5312 of the assembly frame 531.

[0071] When the opposite two ends of the bottom adapter plate 533 are respectively supported by the upper shock absorbing tubes 53231 of the upper shock absorbing parts 5323 of the two rubber shock absorbers 532, and 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 rubber shock absorbers 532, the threaded ends of the screw rods 200 extend to the bottom adapter plate threaded holes 5331 of the bottom adapter plate 533 after respectively passing through the shock absorber through holes 5321 of the rubber shock absorbers 532, and the threaded ends of the screw rods 200 are screwed to the bottom adapter plate 533, so that the bottom adapter plate 533 is installed on the top of the assembly frame 531 through the rubber shock absorber 532. In this way, the lower shock absorbing part 5322 isolates the screw rod 200 and the locking arm 5312 of the assembly frame 531, and the upper shock absorbing part 5323 not only isolates the screw rod 200 and the locking arm 5312 of the assembly frame 531, but also isolates the bottom adapter plate 533 and the locking arm 5312 of the assembly frame 531. In this way, the rubber shock absorber 532 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 51 and the sonar body 60 installed on the bottom plate 51.

[0072] Continue to refer to the attached Fig.10 and Fig.11 The rubber shock absorber 532 further includes a metal connecting piece 5324 and a metal gasket 5325, wherein the connecting piece 5324 includes a connecting tube 53241 and a connecting ring 53242, the connecting ring 53242 extends outward from the bottom of the connecting tube 53241, the outer diameter of the connecting tube 53241 is consistent with the inner diameter of the shock absorber through hole 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 through hole 5321 of the rubber shock absorber 532, wherein the metal gasket 5325 has a gasket through hole 53251, the metal gasket 5325 is stacked on the upper shock absorber tube 53231 of the upper shock absorber part 5323, and the gasket through hole 53251 of the metal gasket 5325 corresponds to the hollow part of the upper shock absorber part 5323.

[0073] The top of the connecting tube 53241 passes through the hollow part of the lower shock absorbing part 5322 and the hollow part of the upper shock absorbing part 5323 in sequence, so that the top of the connecting tube 53241 passes through the shock absorber through hole 5321 of the rubber shock absorber 532, and the top of the connecting tube 53241 further passes through the gasket through hole 53251 of the metal gasket 5325, and the connecting ring 53242 is stacked on the lower shock absorbing part 5322. The threaded end of the screw rod 200 passes through the connecting tube 53241 and the gasket through hole 53251 of the metal gasket 5325 and extends to the bottom adapter plate threaded hole 5331 of the bottom adapter plate 533, and the threaded end of the screw rod 200 is screwed to the bottom adapter plate 533. In this way, firstly, even if the lower shock absorbing part 5322 and the upper shock absorbing part 5323 are aged, The connecting member 5324 can still ensure that the lower shock absorbing part 5322 and the upper shock absorbing part 5323 will not fall off. Secondly, the connecting member 5324 can isolate the lower shock absorbing part 5322 and the screw rod 200 and isolate the upper shock absorbing part 5323 and the screw rod 200, so that the lower shock absorbing part 5322 and the upper shock absorbing part 5323 made of rubber material will not be cut by the thread of the thread end of the screw rod 200. Thereby, the lower shock absorbing part 5322 and the upper shock absorbing part 5323 are protected. Thirdly, in the process of screwing the screw rod 200 to the bottom adapter plate 533, the connecting piece 5324 and the metal gasket 5325 can prevent the lower shock absorbing part 5322 and the upper shock absorbing part 5323 from being over-compressed and causing breakage, thereby ensuring that the lower shock absorbing part 5322 and the upper shock absorbing part 5323 have a good shock absorbing effect.

[0074] That is to say, the connecting piece 5324 and the metal gasket 5325 cooperate with each other, which can not only prevent the lower shock absorbing part 5322 and the upper shock absorbing part 5323 from being over-compressed, but also control the compression amount of the lower shock absorbing part 5322 and the upper shock absorbing part 5323, thereby ensuring that the lower shock absorbing part 5322 and the upper shock absorbing part 5323 have good shock absorbing effect.

[0075] Reference Fig.10 and Fig.11 The wire rope shock absorber 534 includes a bottom extension arm 5341, a top extension arm 5342 and a wire rope spiral 5343. The bottom extension arm 5341 has a row of bottom arm body through holes 53411, and the top extension arm 5342 has a row of top arm body through holes 53421. The bottom extension arm 5341 and the top extension arm 5342 are symmetrically and spaced apart from each other. The position of the hole 53411 corresponds one to one with the position of each of the top arm body through-holes 53421 of the top extension arm 5342, and the wire rope spiral 5343 crosses through each of the bottom arm body through-holes 53411 of the bottom extension arm 5341 and each of the top arm body through-holes 53421 of the top extension arm 5342 in sequence, so that the bottom extension arm 5341 and the top extension arm 5342 are connected by the wire rope spiral 5343. Since the wire rope spiral 5343 extends spirally between the bottom extension arm 5341 and the top extension arm 5342, the wire rope spiral 5343 is elastic. After the bottom extension arm 5341 and the top extension arm 5342 are pressed and moved closer to each other, the wire rope spiral 5343 is deformed and accumulates elastic potential energy. After the pressure applied to the bottom extension arm 5341 and the top extension arm 5342 is removed, the wire rope spiral 5343 returns to its original state and the bottom extension arm 5341 and the top extension arm 5342 are reset.

[0076] 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, and 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, so that 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 of the vibration.

[0077] Preferably, the specifications of the wire rope shock absorbers 534 of the two side shock absorbing units 5302 are the same, and the wire rope shock absorbers 534 of the two side shock absorbing units 5302 are in a natural state, the specifications of the wire rope shock absorber 534 of the rear shock absorbing unit 5301 are different from those of the wire rope shock absorber 534 of the side shock absorbing units 5302, and the wire rope shock absorber 534 of the rear shock absorbing unit 5301 is in a compressed state. In this way, it is helpful to ensure that the wire rope shock absorber 534 passing through the 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 side shock absorbing unit 5302 and perpendicular to the side shock absorbing unit 5302, a straight line L3 passing through the center of gravity of another side shock absorbing unit 5302 and perpendicular to the 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 one point, thereby avoiding the "head-down" problem of the sonar body 60.

[0078] In this specific example of the sonar of the present invention, the opposite ends of the bottom adapter plate 533 respectively have a bottom adapter plate screw hole 5332, and the opposite ends of the bottom extension arm 5341 respectively have a bottom arm body threaded hole 53412, the positions of the bottom arm body threaded holes 53412 of the bottom extension arm 5341 correspond to the positions of the bottom adapter plate screw holes 5332 of the bottom adapter plate 533, and the threaded ends of the screws 200 extend to the bottom arm body threaded holes 53412 of the bottom extension arm 5341 after passing through the bottom adapter plate screw holes 5332 of the bottom adapter plate 533, and the threaded ends of the screws 200 are screwed on the bottom extension arm 5341, so that the bottom extension arm 5341 is installed on the bottom adapter plate 533 through the screws 200.

[0079] In this specific example of the sonar of the present invention, the opposite ends of the top adapter plate 535 respectively have a top adapter plate screw hole 5351, and the opposite ends of the top extension arm 5342 respectively have a top arm body threaded hole 53422, the positions of each of the top adapter plate screw holes 5351 of the top adapter plate 535 correspond to the positions of each of the top arm body threaded holes 53422 of the top extension arm 5342, and the threaded ends of each of the screws 200 extend to each of the top arm body threaded holes 53422 of the top extension arm 5342 after passing through each of the top adapter plate screw holes 5351 of the top adapter plate 535, and the threaded ends of each of the screws 200 are screwed on the top extension arm 5342, so that the top extension arm 5342 is installed on the top adapter plate 535 through the screw 200.

[0080] Continue to refer to the attached Fig.10 and Fig.11 , the top adapter plate 535 is mounted on the top plate 52 through the screw 200. Specifically, the top plate 52 has at least one top plate screw hole 521, and the top adapter plate 535 has at least one top adapter plate threaded hole 5352. The position of the top plate screw hole 521 of the top plate 52 corresponds to the position 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 to the top adapter plate 535, so that the top adapter plate 535 is mounted on the top plate 52 through the screw 200.

[0081] Preferably, the top adapter plate 535 is mounted on the top plate 52 through two rows of screw rods 200, so as to facilitate the uniform force of the wire rope shock absorber 534 and ensure the shock absorption effect of the shock absorption unit 53. The number of screw rods 200 in each row is not limited in the sonar of the present invention. Figures 1 to 19 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 52 and the top adapter plate 535 .

[0082] Reference Fig.13 and Fig.14, insert the lower insertion tube 53222 from bottom to top into the frame through-hole 5313 of the assembly frame 531 and insert the upper insertion tube 53232 from top to bottom into the frame through-hole 5313 of the assembly frame 531, stack the metal gasket 5325 on the upper shock-absorbing tube 53231, and extend into the gasket through-hole 53251 of the metal gasket 5325 after passing through the hollow parts of the lower shock-absorbing part 5322 and the upper shock-absorbing part 5323 in sequence at the top of the connecting tube 53241, and the connecting ring 53242 is stacked on the lower shock-absorbing tube 53221, so that the rubber shock absorber 532 is set on the assembly frame 531.

[0083] Reference Fig.15 , allowing 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 connecting tube 53241 and the gasket through hole 53251 of the metal gasket 5325, and the threaded end of the screw 200 is screwed to the bottom adapter plate 533, so that the bottom adapter plate 533 is installed on the assembly frame 531 through the rubber shock absorber 532.

[0084] Reference Fig.16 , allowing the threaded end of the screw rod 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 rod 200 is screwed to the bottom extension arm 5341, thereby installing the wire rope shock absorber 534 on the bottom adapter plate 533.

[0085] Reference Fig.17 , allowing the threaded end of the screw rod 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 rod 200 is screwed to the top extension arm 5342, so that the top adapter plate 535 is installed on the wire rope shock absorber 534. At this time, the shock absorbing unit 53 is assembled.

[0086] Reference Fig.18, allowing the threaded end of the screw rod 200 to extend to the frame threaded hole 5311 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 that the shock absorbing unit 53 is installed on the bottom plate 51. Allowing the threaded end of the screw rod 200 to extend 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 rod 200 is screwed to the top adapter plate 535, so that the shock absorbing unit 53 is installed on the top plate 52. At this point, the shock absorbing platform 50 is assembled.

[0087] Reference Fig.19 , allowing the threaded end of the screw 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 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 absorbing platform 50 after passing through the top plate through hole 522 of the top plate 52.

[0088] 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. Sonar, characterized in that, include: Shock-absorbing platform; A sonar body, wherein the sonar body is arranged on the shock absorbing platform; A watertight compartment, wherein the watertight compartment has a compartment cavity and a bottom opening, a top passage and two pairs of bulkhead perforations respectively connected to the compartment cavity; A lifting assembly, wherein the lifting assembly comprises a receiving tube and a lifting rod telescopically arranged on the receiving tube, the bottom of the receiving tube is installed above the watertight compartment, the lifting rod extends to the cabin of the watertight compartment through the top channel of the watertight compartment, and the shock absorbing platform is arranged on the lifting rod; A transmission assembly, wherein the transmission assembly comprises two transmission shafts, the opposite ends of one transmission shaft are rotatably mounted on a pair of bulkhead through-holes of the watertight compartment, and the opposite ends of the other transmission shaft are rotatably mounted on another pair of bulkhead through-holes of the watertight compartment; Two connecting rod assemblies, wherein each connecting rod assembly 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 mounted, the other end of the upper connecting rod is fixedly mounted on the transmission shaft, and the other end of the lower connecting rod is rotatably mounted on 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 connecting rod or the lower connecting rod has a second rod body weak point.

4. The sonar according to claim 2, characterized in that: The size of a portion of the lifting rod where the first rod body weak point is located is smaller than the size of other portions of the lifting rod.

5. The sonar according to claim 3, characterized in that: The size of the portion 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 portions of the upper connecting rod or the lower connecting rod.

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

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

8. A disposable shock absorbing mechanism, characterized in that: include: Shock-absorbing platform; A watertight compartment, wherein the watertight compartment has a compartment cavity and a bottom opening, a top passage and two pairs of bulkhead perforations respectively connected to the compartment cavity; A lifting assembly, wherein the lifting assembly comprises a receiving tube and a lifting rod telescopically arranged on the receiving tube, the bottom of the receiving tube is installed above the watertight compartment, the lifting rod extends to the cabin of the watertight compartment through the top channel of the watertight compartment, the shock absorbing platform is arranged on the lifting rod, and the lifting rod has a first rod body vulnerable point; A transmission assembly, wherein the transmission assembly comprises two transmission shafts, the opposite ends of one transmission shaft are rotatably mounted on a pair of bulkhead through-holes of the watertight compartment, and the opposite ends of the other transmission shaft are rotatably mounted on another pair of bulkhead through-holes of the watertight compartment; Two connecting rod assemblies, wherein each connecting rod assembly comprises 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 mounted, the other end of the upper connecting rod is fixedly mounted on the transmission shaft, and the other end of the lower connecting rod is rotatably mounted on the shock absorbing platform, wherein the upper connecting rod or the lower connecting rod has a second rod body weak point.

9. The disposable shock absorbing mechanism according to claim 8, characterized in that: The size of the portion of the lifting rod where the first rod body weak point is located is smaller than the size of other portions of the lifting rod, and the size of the portion of the upper connecting rod or the lower connecting rod where the second rod body weak point is located is smaller than the size of other portions of the upper connecting rod or the lower connecting rod.

10. The disposable shock absorbing mechanism according to claim 8, characterized in that: The disposable shock absorbing mechanism comprises a watertight plug, and the watertight plug is arranged in the watertight compartment.

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