A detection mounting bracket and a processor-based underwater acoustic pulse detection device

Abstract

The present invention provides a detection mounting bracket and a processor-based underwater acoustic pulse detection device. The detection mounting bracket includes: a mounting seat, a mounting tube is arranged at the center of the mounting seat, and a sealing plate is arranged in the mounting tube; a mounting column, the mounting column includes a driving column and an assembly column, a fixed seat is installed at the top of the assembly column, the bottom end of the assembly column is rotatably connected with the driving column, the driving column passes through the sealing plate and is rotatably connected with the sealing plate, and the bolt passes through the mounting seat and is connected with the driving column sliding key; a second keyway is provided at the bottom end of the assembly column, and a first keyway is provided on the driving column, and the first keyway and the second keyway are arranged adjacently. The detection mounting bracket provided by the present invention utilizes bolts and threaded sleeves for automatic assembly to limit the mounting seat and the mounting portion, and the staff does not need to use other external tools to complete the installation, making the installation more convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of mounting brackets, and in particular to a mounting bracket for detection and a processor-based underwater acoustic pulse detection device. Background Art

[0002] The underwater acoustic pulse detection device is a device that detects pulsed acoustic signals in water. It is used to realize the collection, filtering, threshold detection, and beamforming of underwater acoustic signals. The solved compass position and target position encoding are uploaded to the remote processing device through wireless radio frequency signals or long-distance cables to realize the target positioning and analysis function.

[0003] The detection head is an important component of the underwater acoustic pulse detection device, which is used to collect sound signals. The detection head can be installed on the bottom or side of the hull, as well as on the top and side of the nearshore underwater piles through a bracket. When installed on the hull, it can detect underwater obstacles such as sunken ships and reefs to provide safety for ship navigation, or be used for underwater archaeology, salvage operations, etc., to determine the location and shape of the target for marine scientific research. When installed on nearshore underwater piles, it is used for underwater biological and ecological detection, underwater safety and security detection, pile structure health detection, etc.

[0004] Generally, mounting components are provided at corresponding mounting positions, and the bracket is connected to the mounting components by means of bolts or welding. During installation, the bracket needs to be aligned with the corresponding mounting component, and then welded or bolted with the help of external auxiliary tools. For underwater installation operations, the installation operation is inconvenient, and the installation position of the detection head is fixed after installation, which is not easy to adjust.

[0005] Therefore, it is necessary to provide a new mounting bracket for detection to solve the above-mentioned technical problems. Summary of the invention

[0006] The invention provides a detection mounting bracket, which solves the technical problems in the prior art that the bracket is inconvenient to install and operate, and the position of the detection head is inconvenient to adjust after installation.

[0007] In order to solve the above technical problems, the present invention provides a detection mounting bracket, comprising:

[0008] A mounting seat, wherein a mounting tube is disposed at the center of the mounting seat, and a sealing plate is disposed inside the mounting tube;

[0009] The mounting column comprises a driving column and an assembly column, a fixing seat is installed on the top of the assembly column, the bottom end of the assembly column is rotatably connected with the driving column, the driving column passes through the sealing plate and is rotatably connected with the sealing plate, and the bolt passes through the mounting seat and is connected with the driving column sliding key; a second key groove is provided at the bottom end of the assembly column, a first key groove is provided on the driving column, and the first key groove is adjacent to the second key groove;

[0010] A transmission sleeve, the transmission sleeve comprising a sleeve and a sliding key, the sleeve is sleeved on the assembly column, the sliding key is installed in the sleeve and slides into the second keyway;

[0011] The rotating device comprises a motor and a gear set, wherein the motor is embedded in a mounting seat, a driving shaft of the motor passes through the sealing plate, and the gear set is transmission-connected between the driving column and the driving shaft.

[0012] Preferably, the transmission sleeve further comprises a first rubber sleeve, the first rubber sleeve is mounted on the inner wall of the sleeve, and the sleeve is connected to the assembly column through an interference fit via the first rubber sleeve.

[0013] Preferably, the detection mounting bracket also includes a protective cover, which includes a cover body, a first assembly kit and a second assembly kit, the first assembly kit is connected and arranged on the top of the cover body, the second assembly kit is connected and arranged on the top of the first assembly kit, the second assembly kit is connected to the assembly column by an interference fit through a second rubber sleeve, the second assembly kit is located above the transmission sleeve, and the first assembly kit and the second assembly kit are respectively adapted to the mounting tube and the transmission sleeve.

[0014] Preferably, the protective cover further comprises an assembly tube, and the assembly tube is connected and mounted on the first assembly set.

[0015] Preferably, a drainage hole is provided on the mounting seat, one end of the drainage hole is communicated with the side surface of the mounting seat, and the other end of the drainage hole is communicated with the top surface of the mounting seat.

[0016] Preferably, a first sealing plug is provided inside the cover body corresponding to the drainage hole.

[0017] Preferably, a plurality of limit pins are installed on the mounting seat.

[0018] Preferably, the fixing seat comprises a first rotating member, a second rotating member and a mounting sleeve, the first rotating member is mounted on the top end of the mounting column, the second rotating member is mounted on the output end of the first rotating member, and the mounting sleeve is mounted on the output end of the second rotating member.

[0019] Preferably, the second rotating member includes a fixing sleeve, a connecting shaft, a positioning plate and a positioning pin, the fixing sleeve is installed at the output end of the first rotating member, one end of the connecting shaft is rotatably installed inside the fixing sleeve through the positioning plate, the other end of the connecting shaft passes through the fixing sleeve, a plurality of positioning grooves are arranged around the positioning plate, the positioning pin passes through the fixing sleeve and is inserted into the positioning groove, and the positioning pin is threadedly connected to the fixing sleeve; wherein, the mounting sleeve is installed at the other end of the connecting shaft.

[0020] The present invention also provides a processor-based underwater acoustic pulse detection device, comprising: an acoustic signal acquisition unit, a processor unit, a communication unit, a digital compass and the detection mounting bracket;

[0021] The communication unit, the processor unit and the acoustic signal acquisition unit are connected in sequence, the digital compass is connected in sequence, and the acoustic signal acquisition unit is mounted on the detection mounting bracket;

[0022] The acoustic signal collection unit is used to collect acoustic signals in water and convert them into digital signals;

[0023] The digital compass is used to provide the position information of the acoustic signal acquisition unit;

[0024] The processor unit is used to process the digital signal and the position information to obtain coded data;

[0025] The communication unit sends the encoded data to a receiving platform.

[0026] Compared with the related art, the detection mounting bracket provided by the present invention has the following beneficial effects:

[0027] When installing the detection mounting bracket with the corresponding mounting part, first align the mounting seat with the mounting position of the mounting part. At this time, the bolt is aligned with the corresponding threaded sleeve on the mounting part, and the bottom end of the bolt is abutted against the top end of the threaded sleeve. Then the motor is started, and the motor drives the driving column to rotate through the gear set, and the driving column drives the bolt to rotate accordingly. The bolt is threadedly connected with the threaded sleeve. During this process, the staff drives the mounting seat to move the mounting seat in the direction in which the bolt is screwed into the threaded sleeve to make it fit with the mounting part. The bolt continues to enter the threaded sleeve. When the bolt completely enters the threaded sleeve, the end cap of the bolt abuts against the mounting seat, thereby utilizing the automatic assembly of the bolt and the threaded sleeve to achieve limiting the mounting seat and the mounting part. The staff does not need to use other external tools to complete the installation, making the installation more convenient.

[0028] After the installation is completed, the driving sleeve is moved downward, so that the sliding key in the sleeve moves downward along the second keyway, and its bottom end moves into the first keyway, so that the sliding key connects the first keyway and the second keyway. Therefore, when the motor drives the driving column to rotate through the gear set, the driving column can drive the assembly column to rotate through the driving sleeve, thereby driving the detection head to rotate, and the monitoring direction of the detection head on the fixed seat can be automatically adjusted according to the situation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of the structure of the detection mounting bracket provided by the present invention;

[0030] Figure 2 for Figure 1 A partial cross-sectional view of the detection mounting bracket shown;

[0031] Figure 3 for Figure 2 An enlarged schematic diagram of part A is shown;

[0032] Figure 4 The state diagram of the detection mounting bracket provided by the present invention being installed with the mounting portion from different directions, wherein: Figure 4 (a) Installation diagram with the mounting portion located at the bottom of the detection mounting bracket. Figure 4 (b) Installation status diagram with the mounting portion located on top of the detection mounting bracket, Figure 4 (c) Installation state diagram where the installation portion is located on the side of the detection mounting bracket;

[0033] Figure 5 A schematic diagram of the structure of the protective cover provided by the present invention being assembled on a mounting column;

[0034] Figure 6 for Figure 5 A schematic diagram of the structure of the protective cover shown;

[0035] Figure 7 The schematic diagram of the principle of the bolt and threaded sleeve assembly provided by the present invention, wherein: Figure 7 (a) is a schematic diagram of the abutment between the bolt and the threaded sleeve. Figure 7 (b) is a schematic diagram of the completed assembly of the bolt and the threaded sleeve. Figure 7 (c) Figure 7 (a) is an enlarged schematic diagram. Figure 7 (d) Figure 7 (b) Enlarged schematic diagram;

[0036] Figure 8 The schematic diagram of the principle of installing the protective cover and the mounting base provided by the present invention, wherein: Figure 8 (a) is a schematic diagram of moving the protective cover downward to make the assembly cylinder abut against the drive shaft. Figure 8 (b) is a schematic diagram of the protective cover and the mounting base being assembled. Figure 8 (c) Figure 8 (a) is an enlarged schematic diagram. Figure 8 (d) Figure 8 (b) Enlarged schematic diagram;

[0037] Fig. 9 for Figure 1 A cross-sectional view of the second rotating member shown;

[0038] Fig.10 This is a principle block diagram of the processor-based underwater acoustic pulse detection device provided by the present invention.

[0039] Numbers in the figure:

[0040] 1. Mounting seat; 11. Mounting tube; 12. Limit pin; 13. Drain hole; 14. Concave portion; 111. Sealing plate;

[0041] 2. Installation column; 21. Driving column; 22. Assembly column; 211. First keyway; 221. Second keyway;

[0042] 3. Rotating device; 31. Motor; 32. Driving shaft; 33. Gear set;

[0043] 4. Transmission sleeve; 41. Casing; 42. Sliding key; 43. First rubber sleeve;

[0044] 5. Protective cover; 51. Cover body; 52. First assembly set; 53. Second assembly set; 54. Assembly cylinder; 511. First sealing plug; 531. Second rubber sleeve;

[0045] 6. A first rotating member;

[0046] 7. second rotating member; 71. fixing sleeve; 72. connecting shaft; 73. positioning plate; 74. positioning pin; 711. nut; 721. positioning groove;

[0047] 8. Bolts;

[0048] 9. mounting portion; 91. threaded sleeve; 92. slot; 93. blind hole;

[0049] 20. Mounting sleeve; 30. Detection head. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0051] The invention provides a mounting bracket for detection.

[0052] Please refer to Figures 1 to 3 In one embodiment of the present invention, the detection mounting bracket comprises:

[0053] A mounting seat 1, wherein a mounting tube 11 is disposed at the center of the mounting seat 1, and a sealing plate 111 is disposed inside the mounting tube 11;

[0054] The mounting column 2 comprises a driving column 21 and an assembly column 22. A fixing seat is installed at the top of the assembly column 22. The bottom end of the assembly column 22 is rotatably connected to the driving column 21. The driving column 21 passes through the sealing plate 111 and is rotatably connected to the sealing plate 111. The bolt 8 passes through the mounting seat 1 and is connected to the driving column 21 with a sliding key. A second key groove 221 is provided at the bottom end of the assembly column 22. A first key groove 211 is provided on the driving column 21. The first key groove 211 is adjacent to the second key groove 221.

[0055] The transmission sleeve 4 includes a sleeve 41 and a sliding key 42. The sleeve 41 is sleeved on the assembly column 22. The sliding key 42 is installed in the sleeve 41 and slides into the second key groove 221.

[0056] The rotating device 3 includes a motor 31 and a gear set 33 . The motor 31 is embedded in the mounting seat 1 . The driving shaft 32 of the motor 31 passes through the sealing plate 111 . The gear set 33 is transmission-connected between the driving column 21 and the driving shaft 32 .

[0057] Please refer again Figure 3 In this embodiment, the specific configuration of the gear set 33 is as follows: the gear set 33 includes two gears, one gear is mounted on the driving shaft 32, and the other gear is mounted on the driving column 21. The two gears are meshed, and the two gears are correspondingly located in the mounting tube 11, and the top surface of the gears is slightly lower than the top surface of the mounting tube 11.

[0058] Please refer again Figure 2 The fixing seat is used to fix and install the detection head 30. A mounting portion 9 is pre-arranged at the installation position, and a threaded sleeve 91 is embedded in the mounting portion 9. The threaded sleeve 91 is arranged corresponding to the bolt 8 to realize the assembly of the mounting portion 9 and the mounting seat 1. The installation position of the mounting portion 9 includes the bottom of the hull, the side of the ship, and the top and side of the nearshore underwater foundation pile.

[0059] See also Figure 4 According to the installation situation, the mounting seat 1 includes installation directions such as upward installation, downward installation, and sideways installation; the description of the position relationship of the detection mounting bracket in the following text is based on the mounting seat 1 facing upward.

[0060] Please refer again Figure 3 The mounting tube 11 and the mounting seat 1 are sealed to form a closed space. The motor 31 is installed in the closed space and on the sealing plate 111. The sealing plate 111 and the mounting tube 11 are integrally formed.

[0061] Please refer to Figure 7 (a) to Figure 7 (b) When installing the detection mounting bracket with the corresponding mounting part 9, first align the mounting seat 1 with the mounting position of the mounting part 9. At this time, the bolt 8 is aligned with the corresponding threaded sleeve 91 on the mounting part 9, and the bottom end of the bolt 8 is abutted against the top end of the threaded sleeve 91. Then the motor 31 is started, and the motor 31 drives the driving column 21 to rotate through the gear set 33. The driving column 21 drives the bolt 8 to rotate, and the bolt 8 is threadedly connected with the threaded sleeve 91. During this process, the staff drives the mounting seat 1 to move the mounting seat 1 in the direction in which the bolt 8 is screwed into the threaded sleeve 91, so that it fits with the mounting part 9, and the bolt 8 continues to enter the threaded sleeve 91. When the bolt 8 completely enters the threaded sleeve 91, the end cap of the bolt 8 abuts on the mounting seat 1, thereby utilizing the bolt 8 and the threaded sleeve 91 to automatically assemble, so as to limit the mounting seat 1 and the mounting part 9. The staff does not need to use other external tools to complete the installation, making the installation more convenient.

[0062] After the installation is completed, the driving sleeve 4 is driven to move downward, so that the sliding key 42 in the sleeve 41 moves downward along the second key groove 221, so that the bottom end of the sliding key 42 moves into the first key groove 211, so that the sliding key 42 connects the first key groove 211 and the second key groove 221. Therefore, when the motor 31 drives the driving column 21 to rotate through the gear set 33, the driving column 21 can drive the assembly column 22 to rotate through the driving sleeve 4, thereby driving the fixed seat to rotate, and the monitoring direction of the detection head 30 on the fixed seat can be automatically adjusted according to the situation.

[0063] Among them, by setting the installation column 2 as the driving column 21 and the assembly column 22, and subsequently connecting them through the transmission sleeve 4, it can be avoided that when the driving column 21 drives the bolt 8 to be threadedly connected with the corresponding threaded sleeve 91, the installation column 2 drives the connecting cable on the detection head 30 to rotate and cause entanglement; and it can be avoided that when the installation column 2 rotates, the detection head 30 is driven to rotate and hit the staff.

[0064] When the bolt 8 is completely screwed into the threaded sleeve 91 , the end cap of the bolt 8 is just separated from the bottom end of the mounting column 2 . When the subsequent rotating device 3 drives the mounting column 2 to rotate again, the bolt 8 will not be driven to rotate through the mounting column 2 .

[0065] It can be understood that in the present invention, the control method of the motor 31 includes remote control and / or setting a start switch on the detection mounting bracket. The remote control facilitates the subsequent control of the motor 31 and adjusts the monitoring direction of the detection head 30; the setting of the start switch facilitates the staff to start the motor 31 to complete the installation operation when installing the mounting seat 1 and the mounting part 9.

[0066] The power supply of the motor 31 is set as follows: a battery can be set inside the mounting base 1 to power the motor 31. Alternatively, a power module can be used outside the mounting base 1 to power the motor 31. The power supply is selected according to the installation position of the detection head 30. For example, when installed on a hull, the power module can use the power supply on the hull. When installed on a nearshore pile foundation, it can be connected to the shore power supply through a cable.

[0067] A sensor can be set on the mounting sleeve 20 to detect whether there are impurities such as algae attached or fish approaching, such as a photoelectric switch, a capacitive sensor, a pressure sensor, etc. A camera can also be set on the mounting part 9 corresponding to the detection head 30 to monitor the working status of the detection head 30 and the subsequent digital compass.

[0068] When impurities such as aquatic plants and dirt may be attached to the cleaning detection head 30, the rotating device 3 can drive the detection head 30 to rotate back and forth, cooperate with the flow of water in the installation environment, clean the impurities, and try to avoid the impurities and the like from affecting the operation of the detection head 30.

[0069] In this embodiment, the end cap of the bolt 8 is a conventional hexagonal end cap, and a matching hexagonal hole is correspondingly opened at the bottom end of the mounting column 2, and the end cap of the bolt 8 is inserted into the hexagonal hole.

[0070] When the mounting column 2 rotates, the bolt 8 can be driven to rotate without hindering the key connection between the bolt 8 and the mounting column 2. A sealing ring is connected to the bottom of the end cap of the bolt 8, so that when the bolt 8 is fully threadedly connected to the corresponding threaded sleeve 91, the sealing ring is in a compressed state, and the bolt 8 is separated from the bottom of the mounting column 2, thereby improving the sealing and stability of the connection.

[0071] Please refer again Figure 3 , the number of the sliding keys 42 is at least two. In this embodiment, the number of the sliding keys 42 is two and they are symmetrically arranged, and the number and position of the first key grooves 211 and the second key grooves 221 are arranged correspondingly to the sliding keys 42.

[0072] See also Figure 3 As a preferred embodiment of this embodiment, the transmission sleeve 4 further includes a first rubber sleeve 43 , which is installed on the inner wall of the sleeve 41 , and the sleeve 41 is connected to the assembly column 22 through an interference fit via the first rubber sleeve 43 .

[0073] By fixing the first rubber sleeve 43 on the inner wall of the sleeve 41 to have an interference fit with the assembly column 22, the transmission sleeve 4 can be more stably mounted on the assembly column 22 when there is no need for a transmission connection between the driving column 21 and the assembly column 22. Since the first rubber sleeve 43 is elastic, the transmission sleeve 4 can move along the installation column 2 under the action of applied pressure.

[0074] The first rubber sleeve 43 is rubber or silicone. A rubber sleeve can also be set on the sliding key 42 to increase the friction with the corresponding keyway so that the transmission sleeve 4 can be stably maintained in the relative position.

[0075] Please refer to Figure 5 , Figure 6 and Figure 8 The detection mounting bracket also includes a protective cover 5, which includes a cover body 51, a first assembly set 52 and a second assembly set 53. The first assembly set 52 is connected and arranged on the top of the cover body 51, and the second assembly set 53 is connected and arranged on the top of the first assembly set 52. The second assembly set 53 is connected with the assembly column 22 through an interference fit through a second rubber sleeve 531. The second assembly set 53 is located above the transmission sleeve 4. The first assembly set 52 and the second assembly set 53 are respectively adapted to the mounting tube 11 and the transmission sleeve 4.

[0076] Please refer again Figure 8 A slot 92 is formed on the mounting portion 9 corresponding to the cover body 51 .

[0077] In the initial state, the protective cover 5 is suspended above the mounting base 1. When the mounting base 1 and the mounting portion 9 are installed, the protective cover 5 is moved down so that the protective cover 5 is sleeved on the mounting base 1, and the bottom of the protective cover 5 is inserted into the slot 92. By setting the protective cover 5 to cover the outside of the mounting base 1, impurities such as mud, sand, and aquatic plants can be prevented from interfering with the operation of the gear set 33.

[0078] At the same time, the protective cover 5 is provided to further increase the stability of the connection between the mounting seat 1 and the mounting portion 9. Specifically, when the water flow acts on the mounting column 2, the mounting column 2 is subjected to thrust in the direction of the water flow, and acts on the water flow for a long time (especially when installed on a moving object such as a hull), the mounting seat 1 acts on the bolt 8 for a long time, and the bolt 8 acts on the threaded sleeve 91, which easily causes the position where the mounting seat 1 and the bolt 8 penetrate and the threaded sleeve 91 to be squeezed and deformed. When assembled with the mounting portion 9 through the protective cover 5, when subjected to the force of the water flow, the protective cover 5 and the mounting portion 9 act, thereby being able to share the force of the water flow well, thereby improving the stability of the entire detection mounting bracket.

[0079] Please refer to Figure 5 , Figure 6 and Figure 8The protective cover 5 also includes an assembly tube 54 , and the assembly tube 54 is connected and installed on the first assembly set 52 .

[0080] Please refer again Figure 8 When the mounting seat 1 and the mounting portion 9 are installed, the protective cover 5 is moved downward so that the assembly cylinder 54 is sleeved on the drive shaft 32 to protect the drive shaft 32.

[0081] When the protective cover 5 moves downward, the transmission sleeve 4 can be automatically driven downward, so that the sliding key 42 connects the first key groove 211 and the second key groove 221;

[0082] Thus, in one state, the rotating device 3 drives the driving column 21 to drive the bolt 8 to rotate and connect with the corresponding threaded sleeve 91, thereby realizing the assembly of the mounting seat 1 and the corresponding mounting part 9; in another state, the rotating device 3 drives the mounting column 2 to rotate, adjusts the monitoring direction of the detection head 30 and cleans it according to the usage, and at the same time, in the process of completing the state switching, it can drive the transmission sleeve 4 to move, so that the sliding key 42 moves from the first key groove 211 to the second key groove 221, thereby realizing the protection of components such as the mounting seat 1 and the gear set 33, and preventing impurities such as mud, sand and aquatic plants from interfering with the operation of the gear set 33.

[0083] The second rubber sleeve 531 is made of the same material and used as the first rubber sleeve 43. The first rubber sleeve 43 and the second rubber sleeve 531 can form a mechanical seal between the protective cover 5 and the mounting column 2, thereby improving the sealing of the connection and ensuring the sealing of the connection when the mounting column 2 can rotate, thereby preventing seawater from entering between the protective cover 5 and the mounting seat 1 through the connection.

[0084] The bottom and inner wall of the protective cover 5 are fixed with a sealing gasket to improve the stability and sealing of the connection with the side wall of the mounting seat 1. A sealing gasket is installed at the bottom of the mounting seat 1 to ensure the sealing of the connection between the mounting seat 1 and the mounting part 9, and the bottom end of the bolt 8 passes through the sealing gasket.

[0085] As an optional implementation of this embodiment, an external thread may be provided on the surface of the drive shaft 32 , and an internal thread may be provided on the inner surface of the assembly cylinder 54 .

[0086] When the mounting seat 1 and the mounting portion 9 are installed, the protective cover 5 is moved downward to make the assembly cylinder 54 contact the drive shaft 32, and then the motor 31 drives the drive shaft 32 to rotate and threadedly connect with the assembly cylinder 54. Since the protective cover 5 is sleeved on the mounting column 2, the protective cover 5 is axially limited, so that when the assembly cylinder 54 is threadedly connected with the drive shaft 32, the protective cover 5 can be moved downward until the protective cover 5 is sleeved on the mounting seat 1, and the bottom of the protective cover 5 is inserted into the slot 92. In this way, the protective cover 5 can be further fixed and limited.

[0087] When the external thread on the drive shaft 32 and the thread on the surface of the assembly cylinder 54 are threadedly connected to each other and are in a separable state, the protective cover 5 can be pressed and the bottom of the protective cover 5 is completely inserted into the slot 92. There is a gap between the thread on the surface of the assembly cylinder 54 and the external thread on the drive shaft 32, thereby not affecting the subsequent rotation device 3 to adjust the orientation of the detection head 30.

[0088] Please refer to Figure 1 and Figure 8 The mounting seat 1 is provided with a drainage hole 13 , one end of the drainage hole 13 is communicated with the side surface of the mounting seat 1 , and the other end of the drainage hole 13 is communicated with the top surface of the mounting seat 1 .

[0089] When installed in an underwater environment, when the protective cover 5 is assembled with the mounting base 1 , water between the two is gradually discharged through the drainage hole 13 .

[0090] Please refer again Figure 1 Similarly, a water outlet hole is correspondingly opened on the side of the mounting tube 11. During the assembly process of the protective cover 5 and the mounting seat 1, the water on the sealing plate 111 is discharged through the water outlet hole.

[0091] Please refer to Figure 6 and Figure 8 A first sealing plug 511 is provided inside the cover body 51 corresponding to the drainage hole 13 .

[0092] When the cover body 51 and the mounting seat 1 are installed, the first sealing plug 511 is inserted into the drainage hole 13 , thereby further preventing seawater from entering between the protective cover 5 and the mounting seat 1 through the drainage hole 13 .

[0093] Please refer to Figures 1 to 3 The mounting seat 1 is provided with a plurality of limit pins 12. The mounting portion 9 is provided with a plurality of blind holes 93 corresponding to the limit pins 12.

[0094] In this embodiment, the length of the limiting pin 12 is longer than the length of the bolt 8 extending below the mounting seat 1 .

[0095] By setting a plurality of limit pins 12, when the mounting seat 1 and the mounting part 9 are installed, the limit pins 12 can be inserted into the corresponding blind holes 93 to limit the horizontal and axial position of the mounting seat 1 relative to the mounting part 9. Therefore, when the rotating device 3 drives the bolt 8 and the threaded sleeve 91 for threaded assembly, the staff does not need to keep supporting the mounting seat 1, making the installation operation more convenient, and the bolt 8 and the threaded sleeve 91 are cooperated to improve the installation rotation stability of the mounting seat 1 and the mounting part 9.

[0096] The number of the limiting pins 12 is not less than two. In this embodiment, the number of the limiting pins 12 is four, and the number of the blind holes 93 is set correspondingly.

[0097] Please refer again Figure 1 A recessed portion 14 is provided on the top of the mounting seat 1 , and the mounting tube 11 is located inside the recessed portion 14 .

[0098] Please refer again Figure 1 The fixed seat includes a first rotating member 6, a second rotating member 7 and a mounting sleeve 20, the first rotating member 6 is installed at the top end of the assembly column 22, the second rotating member 7 is installed at the output end of the first rotating member 6, and the mounting sleeve 20 is installed at the output end of the second rotating member 7.

[0099] By providing the first rotating member 6 and the second rotating member 7, the initial installation angle of the detection head 30 can be adjusted with multiple degrees of freedom according to the usage conditions.

[0100] Please refer to Figure 1 and Fig. 9 The second rotating member 7 includes a fixing sleeve 71, a connecting shaft 72, a positioning plate 73 and a positioning pin 74. The fixing sleeve 71 is installed at the output end of the first rotating member 6. One end of the connecting shaft 72 is rotatably installed inside the fixing sleeve 71 through the positioning plate 73. The other end of the connecting shaft 72 passes through the fixing sleeve 71. A plurality of positioning grooves 721 are arranged around the positioning plate 73. The positioning pin 74 passes through the fixing sleeve 71 and is inserted into the positioning groove 721. The positioning pin 74 is threadedly connected to the fixing sleeve 71. The mounting sleeve 20 is installed at the other end of the connecting shaft 72.

[0101] When it is necessary to adjust the installation angle of the detection head 30 along the rotation direction of the connecting shaft 72, firstly, the positioning pin 74 is screwed to make the bottom end of the positioning pin 74 move out of the corresponding positioning slot 721, and then the detection head 30 can be rotated to adjust it to a preset angle, and the detection head 30 drives the connecting shaft 72 to rotate, thereby driving the positioning plate 73 to rotate, and at this time the positioning pin 74 is aligned with another positioning slot 721, and the positioning pin 74 is screwed again to make the bottom end of the positioning pin 74 inserted into the inside of the positioning slot 721 to achieve limit, and the adjustment operation is simple and convenient;

[0102] The fixing sleeve 71 may be embedded with a nut 711, and the positioning pin 74 passes through the nut 711 and is threadedly connected with the nut 711. A corresponding threaded hole may also be directly provided on the fixing sleeve 71 to be threadedly connected with the positioning pin 74.

[0103] The first rotating member 6 and the second rotating member 7 have the same structural principle. The difference is that the connecting shaft 72 in the first rotating member 6 is rotatably mounted in the U-shaped frame at the top of the assembly column 22, the fixing sleeve 71 is fixed to one side of the U-shaped frame and sleeved on the connecting shaft 72, and the positioning plate 73 is mounted on the connecting shaft 72 and located inside the fixing sleeve 71;

[0104] The fixing sleeve 71 in the second rotating member 7 is mounted on the connecting shaft 72 in the first rotating member 6 through a connecting block.

[0105] In the present invention, the entire detection mounting bracket can be made of hard plastic material or anti-corrosion metal material such as stainless steel.

[0106] Among them, a disc is fixed on the driving column 21, a circular cover is arranged on the supporting part of the mounting tube 11, the driving column 21 passes through the circular cover, and the disc is located inside the circular cover to form a rotating upper connection. The disc includes two layers of circular plates and an elastic rubber pad, and the elastic rubber pad connects the two layers of circular plates. By setting the elastic rubber pad, when the detection mounting bracket is damaged and needs to be replaced, the mounting column 2 can be pushed down to compress the elastic rubber pad so that the mounting column 2 can be slightly moved down, so that the bottom end of the driving column 21 can be partially sleeved on the bolt 8, so that the corresponding threaded sleeve 91 can be screwed out by driving the driving column 21 later.

[0107] The detection mounting bracket in the present invention is used to fix the detection head 30, and the detection head 30 can be a hydrophone, an underwater camera, a sonar detector or other components.

[0108] The working principle of the detection mounting bracket provided by the present invention is as follows:

[0109] Please refer to Figure 7 (a) to Figure 7 (b) Please refer to Figure 7 (a) to Figure 7 (b), specifically, when installing the detection mounting bracket with the corresponding mounting portion 9, first align the mounting seat 1 with the mounting position of the mounting portion 9, at this time align the bolt 8 with the corresponding threaded sleeve 91 on the mounting portion 9, and make the bottom end of the bolt 8 abut against the top end of the threaded sleeve 91, then start the motor 31, the motor 31 drives the driving column 21 to rotate through the gear set 33, and the driving column 21 drives the bolt 8 to rotate, and the bolt 8 is threadedly connected with the threaded sleeve 91. During this process, the staff drives the mounting seat 1 to move the mounting seat 1 in the direction in which the bolt 8 is screwed into the threaded sleeve 91, so that it fits with the mounting portion 9, and the bolt 8 continues to enter the threaded sleeve 91. When the bolt 8 completely enters the threaded sleeve 91, the end cap of the bolt 8 abuts on the mounting seat 1, thereby utilizing the bolt 8 and the threaded sleeve 91 to automatically assemble, so as to limit the mounting seat 1 and the mounting portion 9, and the staff does not need to hold the mounting seat 1 to keep it aligned with the mounting portion 9, making the installation more convenient.

[0110] When the bolt 8 is completely screwed into the threaded sleeve 91, the end cap of the bolt 8 is just separated from the bottom end of the mounting column 2. When the subsequent rotating device 3 drives the mounting column 2 to rotate again, the bolt 8 will not be driven to rotate through the mounting column 2.

[0111] Please refer to Figure 8 (a) to Figure 8 (d) When the mounting seat 1 and the mounting portion 9 are installed, the protective cover 5 can be moved down to make the assembly tube 54 abut against the drive shaft 32, and then the motor 31 drives the drive shaft 32 to rotate and threadedly connect with the assembly tube 54. Since the protective cover 5 is sleeved on the mounting column 2, the protective cover 5 is axially limited, and the protective cover 5 is moved down to be sleeved on the mounting seat 1, and the bottom of the protective cover 5 is inserted into the slot 92.

[0112] The first assembly sleeve 52 is sleeved on the installation tube 11, and the second assembly sleeve 53 is sleeved on the transmission sleeve 4. When the protective cover 5 is assembled with the mounting seat 1 in an underwater environment, water between the two is gradually discharged through the drainage hole 13. When the protective cover 5 moves downward, the transmission sleeve 4 can be driven to move downward, so that the sliding key 42 connects the first key groove 211 and the second key groove 221.

[0113] The protective cover 5 is provided to further increase the stability of the connection between the mounting seat 1 and the mounting portion 9;

[0114] Thus, in one state, the rotating device 3 drives the driving column 21 to drive the bolt 8 to rotate and connect with the corresponding threaded sleeve 91, thereby limiting the mounting seat 1 and the corresponding mounting part 9; in another state, the rotating device 3 drives the mounting column 2 to rotate, adjusts the monitoring direction of the detection head 30 and cleans it according to the usage, and at the same time, in the process of completing the state switching, it can drive the transmission sleeve 4 to move, so that the sliding key 42 moves from the first key groove 211 to the second key groove 221, thereby protecting the mounting seat 1 and the gear set 33 and other components, and preventing impurities such as mud, sand and aquatic plants from interfering with the operation of the gear set 33.

[0115] The invention also provides a processor-based underwater acoustic pulse detection device.

[0116] See also Fig.10 , the processor-based underwater acoustic pulse detection device includes: an acoustic signal acquisition unit, a processor unit, a communication unit, a digital compass and the detection mounting bracket;

[0117] The communication unit, the processor unit and the acoustic signal acquisition unit are connected in sequence by signals, the digital compass is connected by signals to the processor unit, and the acoustic signal acquisition unit is installed on the detection mounting bracket;

[0118] The acoustic signal collection unit is used to collect acoustic signals in water and convert them into digital signals;

[0119] The digital compass is used to provide the position information of the acoustic signal acquisition unit;

[0120] The processor unit is used to process the digital signal and the position information to obtain coded data;

[0121] The communication unit sends the encoded data to a receiving platform.

[0122] Among them, the specific structure of the detection mounting bracket refers to the above-mentioned embodiment. Since the present invention also provides a processor-based underwater acoustic pulse detection device that adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0123] In the present invention, the data processing unit is connected to the receiving platform signal through the communication unit. The communication unit can also be connected to the motor 31 signal, so that the receiving platform can remotely control the motor 31.

[0124] The acoustic signal acquisition unit comprises a detection head 30, namely a hydrophone. The detection head 30, an analog amplification and filtering circuit and an audio ADC are sequentially connected in signal connection.

[0125] When the acoustic signal acquisition unit is working, the hydrophone receives the acoustic signal in the water and converts it into an analog electrical signal. At this time, the analog electrical signal is a small signal with a small amplitude and is not convenient for direct processing. Subsequently, an analog amplification and filtering circuit is set to amplify the small signal (the gain is controllable) and filter out a part of the noise signal outside the bandwidth. The amplified analog electrical signal is collected and converted into a digital signal through a dedicated audio ADC. The ADC transmits the digital signal encoded according to the I2S protocol to the processor unit.

[0126] The digital compass provides the position information of the hydrophone, and the position information may be the azimuth information of the digital compass.

[0127] The processor unit includes a RISC-V processor, peripheral FLASH and clock. The processor is mainly responsible for filtering, threshold detection, beamforming and other processing of the received sound signals, and then combines the position information to complete the target direction solution and transmit the data after encoding through the communication unit.

[0128] Please refer again Fig.10 The processor-based underwater acoustic pulse detection device also includes a power module, which mainly provides power for other functional units.

[0129] The RISC-V processor in the processor-based underwater acoustic pulse detection device can adopt a single main chip design with a simple structure, which can reduce the size and weight of the product and save costs; the RISC-V processor has a high instruction energy efficiency ratio, and has lower power consumption than traditional DSP under the same computing power, which enhances endurance. The RISC-V processor can be designed as a dual-core, one dedicated to underwater acoustic signal processing algorithms, and the other dedicated to data storage, scheduling, and data interaction, to improve processing efficiency.

[0130] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A mounting bracket for detection, characterized in that: include: A mounting seat, wherein a mounting tube is disposed at the center of the mounting seat, and a sealing plate is disposed inside the mounting tube; The mounting column comprises a driving column and an assembly column, a fixing seat is installed on the top of the assembly column, the bottom end of the assembly column is rotatably connected with the driving column, the driving column passes through the sealing plate and is rotatably connected with the sealing plate, and the bolt passes through the mounting seat and is connected with the driving column sliding key; a second key groove is provided at the bottom end of the assembly column, a first key groove is provided on the driving column, and the first key groove is adjacent to the second key groove; A transmission sleeve, the transmission sleeve comprising a sleeve and a sliding key, the sleeve is sleeved on the assembly column, the sliding key is installed in the sleeve and slides into the second keyway; The rotating device comprises a motor and a gear set, wherein the motor is embedded in a mounting seat, a driving shaft of the motor passes through the sealing plate, and the gear set is transmission-connected between the driving column and the driving shaft.

2. The detection mounting bracket according to claim 1, characterized in that: The transmission sleeve also includes a first rubber sleeve, which is installed on the inner wall of the sleeve, and the sleeve is connected to the assembly column through an interference fit via the first rubber sleeve.

3. The detection mounting bracket according to claim 1, characterized in that: The detection mounting bracket also includes a protective cover, which includes a cover body, a first assembly set and a second assembly set, the first assembly set is connected and arranged on the top of the cover body, the second assembly set is connected and arranged on the top of the first assembly set, the second assembly set is connected to the assembly column through an interference fit via a second rubber sleeve, the second assembly set is located above the transmission sleeve, and the first assembly set and the second assembly set are respectively adapted to the mounting tube and the transmission sleeve.

4. The detection mounting bracket according to claim 3, characterized in that: The protective cover also includes an assembly tube, and the assembly tube is connected and installed on the first assembly set.

5. The detection mounting bracket according to claim 3, characterized in that: The mounting seat is provided with a drainage hole, one end of the drainage hole is communicated with the side surface of the mounting seat, and the other end of the drainage hole is communicated with the top surface of the mounting seat.

6. The detection mounting bracket according to claim 5, characterized in that: A first sealing plug is arranged inside the cover body corresponding to the drainage hole.

7. The detection mounting bracket according to claim 1, characterized in that: A plurality of limit pins are installed on the mounting seat.

8. The detection mounting bracket according to claim 1, characterized in that: The fixing seat includes a first rotating member, a second rotating member and a mounting sleeve, the first rotating member is mounted on the top end of the mounting column, the second rotating member is mounted on the output end of the first rotating member, and the mounting sleeve is mounted on the output end of the second rotating member.

9. The detection mounting bracket according to claim 8, characterized in that: The second rotating member includes a fixing sleeve, a connecting shaft, a positioning plate and a positioning pin, the fixing sleeve is installed at the output end of the first rotating member, one end of the connecting shaft is rotatably installed inside the fixing sleeve through the positioning plate, the other end of the connecting shaft passes through the fixing sleeve, a plurality of positioning grooves are arranged around the positioning plate, the positioning pin passes through the fixing sleeve and is inserted into the positioning groove, and the positioning pin is threadedly connected to the fixing sleeve; wherein, the mounting sleeve is installed at the other end of the connecting shaft.

10. A processor-based underwater acoustic pulse detection device, characterized in that: include: An acoustic signal acquisition unit, a processor unit, a communication unit, a digital compass, and a detection mounting bracket as described in any one of claims 1 to 9; The communication unit, the processor unit and the acoustic signal acquisition unit are connected in sequence, the digital compass is connected in sequence, and the acoustic signal acquisition unit is mounted on the detection mounting bracket; The acoustic signal collection unit is used to collect acoustic signals in water and convert them into digital signals; The digital compass is used to provide the position information of the acoustic signal acquisition unit; The processor unit is used to process the digital signal and the position information to obtain encoded data; The communication unit sends the encoded data to a receiving platform.

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