Intelligent Adjustment Frame with Short Baseline Length for Underwater Detection

Abstract

The present invention relates to a short baseline length intelligent adjusting frame for underwater detection. It solves the problem that it is difficult to flexibly adjust the short baseline length in the prior art. It includes an assembly base, several assembly cross frames are circumferentially arranged on the assembly base, a length adjusting rod with an underwater navigation and positioning system at the end is connected to the assembly cross frame through a telescopic driving mechanism, and the length adjusting rod is positioned by an electric limiting structure; alternatively, an angle adjusting rod is rotatably arranged at one end of the assembly cross frame, and a rod body limiting mechanism is arranged between two adjacent angle adjusting rods, the angle adjusting rod is limited by an electric gear structure arranged at one end of the assembly cross frame, and a rotation adjusting component connected to the angle adjusting rod and corresponding to the electric gear structure is arranged on the upper side of one end of the assembly cross frame. The advantages of the present invention are as follows: the purpose of flexibly adjusting the short baseline length is achieved, and the use effect is good.

Description

Technical Field

[0001] The present invention relates to the technical field of underwater detection equipment, and particularly relates to an intelligent adjustable bracket with a short baseline length for underwater detection. Background Art

[0002] With the progress of science and technology and the gradual depletion of land resources, the exploration, research, and development of the deep sea by humans will be a hot area of competition among countries in the world in the 21st century. And underwater acoustic technology is the core technology for underwater geographical mapping, underwater resource investigation, underwater climate monitoring, marine biological protection, territorial demarcation, modern navigation safety guarantee, and deep-sea engineering. Underwater positioning and navigation technology is the basic premise for all marine development activities and the development of marine high-tech. The development and military needs in the marine field have promoted the development of underwater high-precision positioning technology. The application development and technical research of ultra-short baseline acoustic positioning systems play an important role in modern marine science. Among them, the acoustic transducer is the "eye" of the ultra-short baseline acoustic positioning system, and the stability of its performance directly determines the stability of the entire acoustic system. However, it is often directly exposed to various harsh underwater environments and is easily damaged by corrosion, collision, etc., resulting in the impact of its stability. In addition, the larger the half-power point beam opening angles of the transmitting transducer and the receiving transducer in the horizontal and vertical directions in the existing acoustic transducers, the wider the detection range and the higher the positioning clarity. However, most of the existing acoustic transducers are fixedly connected through brackets, and the short baseline length formed between the oppositely arranged acoustic transducers is fixed, making it difficult to flexibly adjust the short baseline length according to the actual situation to achieve different detection purposes, and the flexibility of use is not good.

[0003] In order to solve the deficiencies of the existing technology, people have carried out long-term explorations and proposed various solutions. For example, a Chinese patent document discloses a sound head device based on the iTrack-UB series ultra-short baseline underwater acoustic positioning system [CN201510846463.4], which includes a transmitting transducer, a receiving transducer, an electronic compartment, and a circuit board. The transmitting transducer is assembled by connecting two hemispheres with the same polarization direction in parallel, and the receiving transducer is assembled by connecting two hemispheres with opposite polarization directions in series to improve its receiving sensitivity. The transmitting transducer and four receiving transducers are respectively fixedly connected to the bottom surface of the electronic compartment through through-hole screws. The cable passes through the wire hole and the through-hole screw and is led from the piezoelectric ceramic ball to the electronic compartment and connected to the circuit board inside the electronic compartment.

[0004] The above solution solves to a certain extent the problem that the acoustic transducer in the existing technology is easily affected by the water quality environment, resulting in a decrease in its stability. However, this solution still has many deficiencies. For example, it is difficult to flexibly adjust the short baseline length according to the actual situation to achieve different detection purposes, and the flexibility of use is not good. Summary of the Invention

[0005] The object of the present invention is to provide a short baseline length intelligent adjustment frame for underwater detection with reasonable design and flexible use in view of the above problems.

[0006] To achieve the above object, the present invention adopts the following technical solutions: The short baseline length intelligent adjustment frame for underwater detection includes an assembly base, a rotating connection cylinder is provided on the assembly base, and a number of symmetrically arranged assembly cross frames are circumferentially provided on the assembly base and horizontally extend away from the assembly base. A length adjustment rod capable of axially telescoping along the inner circumference of the assembly cross frame and having a vertically arranged underwater navigation and positioning system at its end is connected to the assembly cross frame through a telescopic drive mechanism, and the length adjustment rod is positioned by an electric limiting structure provided at the bottom of one end of the assembly cross frame; alternatively, an angle adjustment rod is rotatably provided at one end of the assembly cross frame, and a rod body limiting mechanism is provided between two adjacent angle adjustment rods. The angle adjustment rod is limited by an electric gear structure provided at one end of the assembly cross frame, and a rotation adjustment assembly connected to the angle adjustment rod and corresponding to the electric gear structure is provided on the upper side of one end of the assembly cross frame. By providing a telescopic drive mechanism on the assembly cross frame to drive the length adjustment rod installed with the underwater navigation and positioning system to axially telescope, the length between the underwater navigation and positioning systems in two diagonal directions can be adjusted, so as to achieve the purpose of adjusting the short baseline length, and the operation is convenient; or an angle adjustment rod that can rotate freely is provided at one end of the assembly cross frame, the distance between the two underwater navigation and positioning systems at the diagonal is adjusted through the rotation adjustment assembly, and the rod body limiting mechanism is used for limiting, with simple principle and convenient use.

[0007] In the above short baseline length intelligent adjustment frame for underwater detection, the telescopic drive mechanism and the electric limiting structure are connected to the externally provided controller through data; alternatively, the rotation adjustment assembly and the electric gear structure are connected to the external controller through data. A positioning module is provided at the end of the length adjustment rod, and the positioning module is connected to the external position display screen. The short baseline length between the underwater navigation and positioning systems can be observed in real time through the position display screen, and remote adjustment and control can be realized by using the controller, and the operation is convenient.

[0008] In the above short baseline length intelligent adjustment frame for underwater detection, the electric limiting structure includes a telescopic cavity formed on the inner circumference of the assembly cross frame. Symmetrically arranged L-shaped support seats are provided on both sides of the telescopic cavity, and a limiting channel is formed in the middle of the L-shaped support seats. A rack limiting mechanism is provided on the lower side of the L-shaped support seats, and the rack limiting mechanism is connected to the lifting drive motor provided on the base of the assembly cross frame. The lifting drive motor is connected to the controller. The L-shaped support seats can keep the length adjustment rod stable during the telescoping process.

[0009] In the above-mentioned intelligent adjusting frame for short baseline length in underwater detection, the rack limiting mechanism includes a limiting rack, and a pressing seat is provided at the bottom of the limiting rack. An axially arranged pressing connection groove is provided at the bottom of the limiting rack, and a connecting transverse groove is vertically arranged in the middle of the pressing seat. A pressing transverse plate corresponding to the pressing connection groove is provided on the pressing seat, and a connecting transverse plate corresponding to the connecting transverse groove is vertically provided in the middle of the pressing transverse plate. A number of connecting columns for connecting the limiting rack are provided on the connecting transverse plate and the pressing transverse plate. A positioning tooth groove corresponding to the limiting rack is provided at the bottom of the length adjusting rod. The rack limiting mechanism can effectively position the length adjusting rod after the length adjustment is completed, avoiding the retraction phenomenon.

[0010] In the above-mentioned intelligent adjusting frame for short baseline length in underwater detection, the telescopic driving mechanism includes a telescopic driving cylinder arranged on the assembly cross frame. The telescopic driving cylinder is connected to the controller, and one end of the telescopic rod of the telescopic driving cylinder has a vertical connecting portion, and the vertical connecting portion is fixedly connected to a fixing hole provided at one end of the angle adjusting rod away from the assembly cross frame.

[0011] In the above-mentioned intelligent adjusting frame for short baseline length in underwater detection, the rotation adjusting assembly includes a rotation driving motor arranged on the upper side of the assembly cross frame. The circumferential inner side of one end of the assembly cross frame where the rotation driving motor is provided has a U-shaped positioning groove for the angle adjusting rod to rotate. A penetration hole is provided at the upper end of the assembly cross frame located in the U-shaped positioning groove, and a limiting groove is provided at the lower end of the assembly cross frame located in the U-shaped positioning groove. One end of the rotation shaft of the rotation driving motor passes through the penetration hole and the U-shaped positioning groove and is arranged in the limiting groove, and a linkage limiting gear is provided at the end. A ring-shaped fixed connection portion for fixedly connecting the angle adjusting rod is provided on the part of the rotation shaft located in the U-shaped positioning groove, and a fixed connection hole corresponding to the ring-shaped fixed connection portion is provided at one end of the angle adjusting rod. The rotation adjusting assembly can effectively adjust the rotation angle of the angle adjusting rod, thereby realizing the adjustment of the short baseline length.

[0012] In the above-mentioned intelligent adjusting frame for short baseline length in underwater detection, the electric gear structure includes a gear positioning motor arranged at the bottom of the assembly cross frame. One end of the positioning shaft of the gear positioning motor passes through the bottom of the assembly cross frame and is arranged in the limiting groove, and a positioning gear is provided at one end of the positioning shaft located in the limiting groove. The positioning gear meshes with the linkage limiting gear, and a positioning component is provided between the positioning gear and the positioning shaft. The electric gear structure can limit the angle adjusting rod after the angle adjustment is completed and maintain a fixed angle.

[0013] In the above-mentioned intelligent adjusting frame with short baseline length for underwater detection, the positioning assembly includes a connecting sleeve arranged at one end of the positioning shaft. A plurality of positioning convex portions are provided on the circumferential outer wall of the connecting sleeve, and a positioning gap is formed between two adjacent positioning convex portions. A plurality of positioning insertion portions corresponding to the positioning gaps one by one are provided on the circumferential inner side of the positioning gear, and a plurality of positioning slots for the positioning convex portions to be inserted are provided between two adjacent positioning insertion portions. The positioning gear is sleeved on the outer wall of the connecting sleeve, and the positioning convex portions and the positioning insertion portions are arranged in mutual abutment. The positioning assembly makes the linkage effect between the positioning shaft and the positioning gear better, and when the gear positioning motor is powered on, the positioning shaft can be locked to keep the positioning gear in linkage lock.

[0014] In the above-mentioned intelligent adjusting frame with short baseline length for underwater detection, the rod limiting mechanism includes a limiting seat arranged between two adjacent angle adjusting rods. Limiting damping rods are arranged at both ends of the circumferential inner side of the limiting seat through connecting chutes, and the limiting damping rods are connected by a limiting spring, and both ends of the limiting damping rods are respectively connected to one side of the corresponding angle adjusting rod. The rod limiting mechanism can limit the distance between two adjacent angle adjusting rods and improve safety.

[0015] In the above-mentioned intelligent adjusting frame with short baseline length for underwater detection, fixing brackets are arranged between the assembly cross frames in pairs. The assembly base is in the shape of a cylindrical barrel, and support discs are respectively arranged at the upper and lower ends of the assembly base. One end of the assembly cross frame is inserted into the assembly base and fixedly connected. The setting of the fixing brackets makes the structure of the assembly cross frame more stable.

[0016] Compared with the existing technology, the advantages of the present invention are as follows: reasonable design and simple structure. By setting a telescopic driving mechanism on the assembly cross frame to drive the length adjusting rod installed with the underwater navigation and positioning system to axially expand and contract, the length between the underwater navigation and positioning systems in two diagonal directions can be adjusted, so as to achieve the purpose of adjusting the short baseline length, and the operation is convenient; or an angle adjusting rod capable of freely rotating is arranged at one end of the assembly cross frame, the distance between the two underwater navigation and positioning systems at the diagonal is adjusted by the rotation adjusting assembly, and the rod limiting mechanism is used for limiting, which is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the overall structural schematic diagram of Embodiment 1;

[0018] Figure 2 is the partial structural sectional view of Embodiment 1;

[0019] Figure 3 is the structural schematic diagram of the limiting rack in Embodiment 1;

[0020] Figure 4 is the structural schematic diagram of the pressing seat in Embodiment 1;

[0021] Figure 5 It is a schematic diagram of the bottom structure of the length adjustment rod in the first embodiment;

[0022] Figure 6 It is a partial connection block diagram in the first embodiment;

[0023] Figure 7 It is a partial connection block diagram in the second embodiment;

[0024] Figure 8 It is a schematic diagram of the overall structure of the second embodiment;

[0025] Figure 9 It is a partial connection block diagram in the second embodiment;

[0026] Figure 10 It is a schematic diagram of the structure when the positioning gear and the linkage limit gear in the second embodiment are engaged;

[0027] Figure 11 It is a schematic diagram of the connection sleeve structure in the second embodiment;

[0028] Figure 12 It is a sectional view of the rod body limit mechanism in the second embodiment;

[0029] Figure 13 It is a schematic diagram of the angle adjustment rod structure in the second embodiment.

[0030] In the figure, there are assembly base 1, rotating connection cylinder 11, assembly cross frame 12, fixed support 13, support disc body 14, telescopic drive mechanism 2, telescopic drive cylinder 21, telescopic rod 22, vertical connection part 23, length adjustment rod 3, underwater navigation and positioning system 31, positioning tooth groove 32, fixed hole 33, electric limit structure 4, telescopic cavity 41, L-shaped support seat 42, limit channel 43, rack limit mechanism 44, limit rack 441, top pressure seat 442, top pressure connection groove 443, connection cross groove 444, top pressure cross plate 445, connection cross plate 446, connection column 447, lifting drive motor 45, angle adjustment rod 5, fixed connection hole 51, rod body limit mechanism 6, limit seat 61, connection chute 62, limit damping rod 63, limit spring 64, electric gear structure 7, gear positioning motor 71, positioning shaft 72, positioning gear 73, positioning component 74, connection sleeve 741, positioning convex part 742, positioning gap 743, positioning insertion part 744, positioning slot 745, rotation adjustment component 8, rotation drive motor 81, U-shaped positioning groove 82, penetration hole 83, limit slot 84, rotation shaft 85, linkage limit gear 86, annular fixed connection part 87, controller 9, positioning module 91, position display screen 92. Specific embodiments

[0031] The following further elaborates on the present invention in conjunction with the accompanying drawings and specific embodiments.

[0032] Embodiment 1

[0033] As Figures 1-6 shown, the intelligent adjustable short baseline length frame for underwater detection includes an assembly base 1. A rotating connection cylinder 11 is provided on the assembly base 1, and a number of symmetrically arranged assembly crossbars 12 extending horizontally away from the assembly base 1 are circumferentially provided on the assembly base 1. A length adjustment rod 3 that can axially expand and contract along the inner circumference of the assembly crossbar 12 and has an underwater navigation and positioning system 31 vertically arranged at its end is connected to the assembly crossbar 12 through a telescopic drive mechanism 2. The length adjustment rod 3 is positioned by an electric limiting structure 4 provided at the bottom of one end of the assembly crossbar 12. By providing a telescopic drive mechanism 2 on the assembly crossbar to drive the adjustment rod 3 to expand and contract, the short baseline length between the underwater navigation and positioning systems 31 at the ends of two length adjustment rods 3 in the diagonal direction is adjusted. After the adjustment is completed, the length adjustment rod 3 is limited by the electric limiting structure 4 to prevent retraction due to the influence of water pressure.

[0034] Among them, the telescopic drive mechanism 2 and the electric limiting structure 4 are connected to a controller 9 provided externally. A positioning module 91 is provided at the end of the length adjustment rod 3, and the positioning module 91 is connected to an external position display screen 92. The positioning module 91 is used to observe the short baseline length between the two underwater navigation and positioning systems 31 in the diagonal direction in real time, and the controller 9 is used to adjust the telescopic length of the length adjustment rod 3.

[0035] Obviously, the electric limiting structure 4 includes a telescopic cavity 41 formed on the inner circumference of the assembly crossbar 12. Symmetrically arranged L-shaped support seats 42 are provided on both sides of the telescopic cavity 41, and a limiting channel 43 is formed in the middle of the L-shaped support seats 42. A rack limiting mechanism 44 is provided below the L-shaped support seats 42, and the rack limiting mechanism 44 is connected to a lifting drive motor 45 provided at the base of the assembly crossbar 12. The lifting drive motor 45 is connected to the controller 9. When the length adjustment of the length adjustment frame is completed, the lifting drive motor 45 drives the rack limiting mechanism 44 to rise and engage with the positioning tooth groove 32 to achieve length positioning of the length adjustment rod 3, and its limiting channel 43 is used to limit the rising height of the rack limiting mechanism 44.

[0036] Further, the rack limiting mechanism 44 includes a limiting rack 441, and a pressing seat 442 is provided at the bottom of the limiting rack 441. An axial pressing connection groove 443 is provided at the bottom of the limiting rack 441, and a connecting transverse groove 444 is vertically provided in the middle of the pressing seat 442. A pressing transverse plate 445 corresponding to the pressing connection groove 443 is provided on the pressing seat 442, and a connecting transverse plate 446 corresponding to the connecting transverse groove 444 is vertically provided in the middle of the pressing transverse plate 445. A number of connecting columns 447 for connecting the limiting rack 441 are provided on the connecting transverse plate 446 and the pressing transverse plate 445. A positioning tooth groove 32 corresponding to the limiting rack 441 is provided at the bottom of the length adjusting rod 3. Such a setting enables the bottom of the limiting rack 441 to be evenly stressed and improves the positioning effect.

[0037] Visibly, the telescopic driving mechanism 2 includes a telescopic driving cylinder 21 provided on the assembly cross frame 12. The telescopic driving cylinder 21 is connected to the controller 9, and one end of the telescopic rod 22 of the telescopic driving cylinder 21 has a vertical connecting portion 23. The vertical connecting portion 23 is fixedly connected to a fixing hole 33 provided at one end of the length adjusting rod 3 away from the assembly cross frame 12. A supply pipe is provided at the tail of the telescopic driving cylinder 21 here, and the supply pipe extends to the outside along the rotating connecting cylinder 11.

[0038] Furthermore, fixing brackets 13 are provided between every two of the assembly cross frames 12. The assembly base 1 is in the shape of a cylindrical barrel, and support discs 14 are respectively provided at the upper and lower ends of the assembly base 1. One end of the assembly cross frame 12 is inserted into the assembly base 1 and fixedly connected. The fixing brackets 13 can maintain the stability of the assembly cross frame 12.

[0039] In summary, the principle of this embodiment is as follows: By providing a length adjusting rod 3 with an underwater navigation and positioning system 31 at one end on the assembly cross frame 12, and using the telescopic driving cylinder 21 provided on the assembly cross frame 12 to drive the length adjusting rod 3 to adjust its length. After the adjustment is completed, the lifting driving motor 45 is used to make the limiting rack 441 engage and position the positioning tooth groove 32 located at the bottom of the length adjusting rod 3, so as to fix the length of the length adjusting rod 3. By setting the telescopic length of the length adjusting rod 3, the short baseline length between the underwater navigation and positioning systems 31 in the diagonal direction is controlled.

[0040] Embodiment Two

[0041] As Figures 7-13As shown in the figure, the principle of this embodiment is the same as that of the first embodiment. The difference lies in that: one end of the assembly cross frame 12 is rotatably provided with an angle adjusting rod 5, and a rod body limiting mechanism 6 is provided between two adjacent angle adjusting rods 5. The angle adjusting rod 5 is limited by an electric gear structure 7 provided at one end of the assembly cross frame 12, and a rotation adjusting assembly 8 connected to the angle adjusting rod 5 and corresponding to the electric gear structure 7 is provided on the upper side of one end of the assembly cross frame 12. By rotating the rotation adjusting assembly 8, the angle adjusting rod 5 rotates, thereby controlling the short baseline length between the underwater navigation and positioning systems 31 on the angle adjusting rods 5 in the diagonal direction. After the adjustment is completed, it is locked and positioned by the electric gear structure 7.

[0042] Among them, the rotation adjusting assembly 8 and the electric gear structure 7 are connected to an external controller 9 for data. A positioning module 91 is provided at the end of the angle adjusting rod 3, and the positioning module 91 is connected to an external position display screen 92.

[0043] Furthermore, the rotation adjusting assembly 8 includes a rotation driving motor 81 provided on the upper side of the assembly cross frame 12. The inner circumference of one end of the assembly cross frame 12 where the rotation driving motor 81 is provided has a U-shaped positioning groove 82 for the angle adjusting rod 5 to rotate. And the assembly cross frame 12 is provided with a penetration hole 83 at the upper end of the U-shaped positioning groove 82, and a limiting groove 84 is provided at the lower end of the U-shaped positioning groove 82 of the assembly cross frame 12. One end of the rotation shaft 85 of the rotation driving motor 81 passes through the penetration hole 83 and the U-shaped positioning groove 82 and is arranged in the limiting groove 84, and a linkage limiting gear 86 is provided at the end. A circular fixed connection part 87 for fixedly connecting the angle adjusting rod 5 is provided on the part of the rotation shaft 85 located in the U-shaped positioning groove 82, and a fixed connection hole 51 corresponding to the circular fixed connection part 87 is provided at one end of the angle adjusting rod 5. After the rotation driving motor is powered on, the controller 9 is used to adjust the rotation direction of the rotation shaft 85, thereby adjusting the rotation direction of the angle adjusting rod 5.

[0044] Specifically, the electric gear structure 7 includes a gear positioning motor 71 provided at the bottom of the assembly cross frame 12. One end of the positioning shaft 72 of the gear positioning motor 71 passes through the bottom of the assembly cross frame 12 and is arranged in the limiting groove 84, and a positioning gear 73 is provided at one end of the positioning shaft 72 located in the limiting groove 84. The positioning gear 73 meshes with the linkage limiting gear 86, and a positioning component 74 is provided between the positioning gear 73 and the positioning shaft 72. When the linkage limiting gear 86 rotates, the gear positioning motor 71 is in a power-off state, and the positioning gear 73 rotates synchronously with the linkage limiting gear 86. When the rotation is completed, the gear positioning motor 71 is powered on, and the positioning shaft 72 is locked, so that the positioning gear 73 locks the linkage limiting gear 86, realizing the fixation of the angle adjusting rod 5.

[0045] Preferably, the positioning component 74 includes a connecting sleeve 741 provided at one end of the positioning shaft 72. A plurality of positioning protrusion parts 742 are provided on the circumferential outer wall of the connecting sleeve 741, and a positioning gap 743 is formed between two adjacent positioning protrusion parts 742. A plurality of positioning insertion parts 744 corresponding to the positioning gaps 743 one by one are provided on the circumferential inner side of the positioning gear 73, and a plurality of positioning slots 745 for the positioning protrusion parts 742 to insert are provided between two adjacent positioning insertion parts 744. The positioning gear 73 is sleeved on the outer wall of the connecting sleeve 741, and the positioning protrusion parts 742 and the positioning insertion parts 744 are abutted against each other.

[0046] Specifically, the rod limiting mechanism 6 includes a limiting seat 61 provided between two adjacent angle adjusting rods 5. Two ends of the circumferential inner side of the limiting seat 61 are provided with limiting damping rods 63 through connecting chutes 62, and the limiting damping rods 63 are connected by a limiting spring 64. Two ends of the limiting damping rods 63 are respectively connected to one side of the corresponding angle adjusting rod 5. The acting force of the limiting spring 64 here is greater than the rotating acting force generated by the rotating shaft 85, preventing a large acting force from being generated on an adjacent limiting damping rod 63 when one of the angle adjusting rods 5 rotates, which causes the adjacent angle adjusting rod 5 to rotate.

[0047] In summary, the principle of this embodiment is as follows: By rotatably arranging the angle adjusting rod 5 at one end of the assembly cross frame 12 and using the rotation adjusting component 8 to rotate the angle adjusting rod 5 to achieve angle adjustment. After the adjustment is completed, the gear positioning motor 71 is powered on, and the positioning shaft 72 is locked, so that the positioning gear 73 locks the linkage limiting gear 86, realizing the fixation of the angle adjusting rod 5. Among them, the rod limiting mechanism 6 is used to limit the angle between two adjacent angle adjusting rods 5. The rotation angles of the oppositely arranged angle adjusting rods 5 are different, and the short baseline lengths between the oppositely arranged underwater navigation and positioning systems 31 are different, thereby realizing the adjustment of the short baseline length.

[0048] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0049] Although terms such as mounting base 1, rotation connection cylinder 11, mounting cross frame 12, fixed support 13, support disk body 14, telescopic drive mechanism 2, telescopic drive cylinder 21, telescopic rod 22, vertical connection part 23, length adjustment rod 3, underwater navigation and positioning system 31, positioning tooth groove 32, fixed hole 33, electric limit structure 4, telescopic cavity 41, L-shaped support seat 42, limit channel 43, rack limit mechanism 44, limit rack 441, pressing seat 442, pressing connection groove 443, connecting cross groove 444, pressing cross plate 445, connecting cross plate 446, connecting column 447, lifting drive motor 45, angle adjustment rod 5, fixed connection hole 51, rod body limit mechanism 6, limit seat 61, connection sliding groove 62, limit damping rod 63, limit spring 64, electric gear structure 7, gear positioning motor 71, positioning shaft 72, positioning gear 73, positioning component 74, connection sleeve 741, positioning convex part 742, positioning gap 743, positioning insertion part 744, positioning slot 745, rotation adjustment component 8, rotation drive motor 81, U-shaped positioning groove 82, penetration hole 83, limit groove 84, rotation shaft 85, linkage limit gear 86, annular fixed connection part 87, controller 9, positioning module 91, position display screen 92 are used more frequently in this article, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any kind of additional limitation is contrary to the spirit of the present invention.

Claims

1. A short baseline length intelligent adjustment frame for underwater detection, comprising an assembly base (1), a rotating connection cylinder (11) is provided on the assembly base (1), and a number of symmetrically arranged assembly cross frames (12) extending horizontally away from the assembly base (1) are provided circumferentially on the assembly base (1), characterized in that, A length adjustment rod (3) capable of axially expanding and contracting along the inner circumference of the assembly cross-frame (12) and having an underwater navigation and positioning system (31) vertically arranged at its end is connected to the described assembly cross-frame (12) through a telescopic drive mechanism (2). The length adjustment rod (3) is positioned by an electric limit structure (4) provided at the bottom of one end of the assembly cross-frame (12). The telescopic drive mechanism (2) and the electric limit structure (4) are connected to a controller (9) provided externally. A positioning module (91) is provided at the end of the length adjustment rod (3), and the positioning module (91) is connected to an external position display screen (92). Fixed brackets (13) are provided between every two of the assembly cross-frames (12); by providing a telescopic drive mechanism (2) on the assembly cross-frame to drive the length adjustment rod (3) to expand and contract, the short baseline length between the underwater navigation and positioning systems (31) at the ends of two length adjustment rods (3) located in the diagonal direction can be adjusted. After the adjustment is completed, the length adjustment rod (3) is limited by the electric limit structure (4); the short baseline length between the two underwater navigation and positioning systems (31) in the diagonal direction is observed in real time through the positioning module (91), and the expansion and contraction length of the length adjustment rod (3) is adjusted by the controller (9).

2. The intelligent adjustment frame with short baseline length for underwater detection according to claim 1, characterized in that, The described electric limit structure (4) includes a telescopic cavity (41) formed on the inner circumference of the assembly cross-frame (12). Symmetrically arranged L-shaped support seats (42) are provided on both sides of the telescopic cavity (41), and a limit channel (43) is formed in the middle of the L-shaped support seats (42). A rack limit mechanism (44) is provided below the L-shaped support seats (42), and the rack limit mechanism (44) is connected to a lifting drive motor (45) provided on the base of the assembly cross-frame (12). The lifting drive motor (45) is connected to the controller (9).

3. The intelligent adjustment frame with short baseline length for underwater detection according to claim 2, wherein, The rack limit mechanism (44) includes a limit rack (441), and a pressing seat (442) is provided at the bottom of the limit rack (441). A pressing connection groove (443) is axially provided at the bottom of the limit rack (441), and a connecting cross groove (444) is vertically provided in the middle of the pressing seat (442). A pressing cross plate (445) corresponding to the pressing connection groove (443) is provided on the pressing seat (442), and a connecting cross plate (446) corresponding to the connecting cross groove (444) is vertically provided in the middle of the pressing cross plate (445). A number of connecting columns (447) for connecting the limit rack (441) are provided on the connecting cross plate (446) and the pressing cross plate (445). A positioning tooth groove (32) corresponding to the limit rack (441) is provided at the bottom of the length adjustment rod (3).

4. The intelligent adjustment frame with short baseline length for underwater detection according to claim 3, characterized in that, The telescopic driving mechanism (2) includes a telescopic driving cylinder (21) arranged on the assembly cross frame (12). The telescopic driving cylinder (21) is connected to the controller (9). One end of the telescopic rod (22) of the telescopic driving cylinder (21) has a vertical connecting portion (23), and the vertical connecting portion (23) is fixedly connected to a fixing hole (33) arranged at one end of the length adjusting rod (3) away from the assembly cross frame (12).

5. An intelligent adjustment frame with a short baseline length for underwater detection according to any one of claims 1-4, characterized in that, One end of the assembly cross frame (12) is rotatably provided with an angle adjusting rod (5) with a vertically arranged underwater navigation and positioning system (31) at its end. A rod body limiting mechanism (6) is arranged between two adjacent angle adjusting rods (5). The angle adjusting rod (5) is limited by an electric gear structure (7) arranged at one end of the assembly cross frame (12). And a rotation adjusting component (8) connected to the angle adjusting rod (5) and corresponding to the electric gear structure (7) is arranged on the upper side of one end of the assembly cross frame (12). The rotation adjusting component (8) and the electric gear structure (7) are data-connected to an external controller (9). A positioning module (91) is arranged at the end of the angle adjusting rod (5), and the positioning module (91) is connected to an external position display screen (92).

6. The short baseline length intelligent adjustment frame for underwater detection according to claim 5, characterized in that The rotation adjusting component (8) includes a rotation driving motor (81) arranged on the upper side of the assembly cross frame (12). The inner circumferential side of one end of the assembly cross frame (12) where the rotation driving motor (81) is arranged has a U-shaped positioning groove (82) for the angle adjusting rod (5) to rotate. And a penetrating hole (83) is arranged at the upper end of the assembly cross frame (12) located in the U-shaped positioning groove (82), and a limiting groove (84) is arranged at the lower end of the assembly cross frame (12) located in the U-shaped positioning groove (82). One end of the rotation shaft (85) of the rotation driving motor (81) passes through the penetrating hole (83) and the U-shaped positioning groove (82) and is arranged in the limiting groove (84), and a linkage limiting gear (86) is arranged at the end. A ring-shaped fixed connecting portion (87) for fixedly connecting the angle adjusting rod (5) is arranged on the part of the rotation shaft (85) located in the U-shaped positioning groove (82), and a fixed connecting hole (51) corresponding to the ring-shaped fixed connecting portion (87) is arranged at one end of the angle adjusting rod (5).

7. The intelligent adjustment rack with short baseline length for underwater detection according to claim 6, wherein The electric gear structure (7) includes a gear positioning motor (71) arranged at the bottom of the assembly cross frame (12). One end of the positioning shaft (72) of the gear positioning motor (71) passes through the bottom of the assembly cross frame (12) and is arranged in the limiting groove (84), and a positioning gear (73) is arranged at one end of the positioning shaft (72) located in the limiting groove (84). The positioning gear (73) meshes with the linkage limiting gear (86), and a positioning component (74) is arranged between the positioning gear (73) and the positioning shaft (72).

8. The intelligent adjustment frame with short baseline length for underwater detection according to claim 7, characterized in that, The described positioning component (74) includes a connecting sleeve (741) provided at one end of a positioning shaft (72). A plurality of positioning protrusion portions (742) are provided on the circumferential outer wall of the connecting sleeve (741), and a positioning gap (743) is formed between two adjacent positioning protrusion portions (742). A plurality of positioning insertion portions (744) corresponding to the positioning gaps (743) one by one are provided on the circumferential inner side of the positioning gear (73), and a plurality of positioning slots (745) for the positioning protrusion portions (742) to insert are provided between two adjacent positioning insertion portions (744). The positioning gear (73) is sleeved on the outer wall of the connecting sleeve (741), and the positioning protrusion portions (742) and the positioning insertion portions (744) are arranged in mutual abutment.

9. The intelligent adjustment frame with short baseline length for underwater detection according to claim 5, characterized in that The described rod body limiting mechanism (6) includes a limiting seat (61) provided between two adjacent angle adjusting rods (5). Limiting damping rods (63) are provided at both ends of the circumferential inner side of the limiting seat (61) through connecting chutes (62), and the limiting damping rods (63) are connected by a limiting spring (64). Both ends of the limiting damping rods (63) are respectively connected to one side of the corresponding angle adjusting rod (5).

10. The intelligent adjustment frame with short baseline length for underwater detection according to any one of claims 1-9, characterized in that, The described assembly base (1) is in a cylindrical tube shape, and support discs (14) are respectively provided at the upper and lower ends of the assembly base (1). One end of the assembly cross frame (12) is inserted into the assembly base (1) and fixedly connected.

Images