A base for multi-beam installation

Abstract

The present invention is applicable to the technical field of multi-beam antennas, and provides a base for multi-beam installation, including a first support rod and a second support rod, a width adjustment assembly is arranged between the opposite sides of the first support rod and the second support rod, and one end of the first support rod and one end of the second support rod are both provided with installation assemblies, one end of the first support rod and one end of the second support rod are rotatably connected with an I-shaped column, and a protective tube is fixedly installed at the bottom end of the I-shaped column by screws, and a center hole is opened at the middle position of the top of the protective tube and the middle position of the I-shaped column. The present invention facilitates the installation of the entire installation base on hulls of different widths, and the protective tube enables the entire installation base to have the function of protecting the multi-beam depth sounder, avoiding damage caused by large resistance on the water surface, so that the installation base for multi-beam has good adjustment performance and flexibility, effectively changes the height and angle of the multi-beam, and improves the scope of use.

Description

Technical Field

[0001] The invention belongs to the technical field of multi-beam antennas, and in particular relates to a base for multi-beam installation. Background Art

[0002] A multi-beam antenna is an antenna that can generate multiple sharp beams. These sharp beams (called element beams) can be synthesized into one or several shaped beams to cover a specific airspace. There are three basic forms of multi-beam antennas: lens type, reflector type, and phased array type. In addition, there is a hybrid form that uses a phased array as a reflector or lens feed. Multi-beam antennas have the following characteristics: ① The element beams are narrow and have high gain. If multiple transmitters are used to feed each beam at the same time, a longer range can be achieved; ② The synthesized beam can cover an airspace of a specific shape; ③ Low side lobes can be achieved by combining feed sources. Multi-beam antennas are not only used in radar systems, but have also been applied in technical fields such as satellite communications and electronic countermeasures since the mid-to-late 1960s. They have become a key technology for improving the performance of satellite communication systems and an important means of sorting a large number of targets in modern electronic countermeasures.

[0003] As we all know, in order to obtain high-quality multi-beam bathymetric data, first of all, the multi-beam and attitude instrument must be installed stably and reliably, and secondly, the multi-beam and attitude instrument installation calibration parameters must be correct. Portable multi-beam is generally installed on the side of the ship, and the installation position is preferably located in a flat area in the middle of the ship. The attitude instrument should be installed near the center of gravity of the ship and not easily collided. Whether it is a multi-beam or attitude instrument, the installation angle of the multi-beam and attitude instrument should be as small as possible.

[0004] After searching, the multi-beam shipboard mounting device with patent publication number CN217125052U includes a base and a bracket. The base includes a base and a hinge. The base is vertically mounted on the ship's side by fixing bolts. The arc-shaped lower hinge piece at the lower part of the hinge is fixed to the upper surface of the base. The arc-shaped upper hinge piece at the upper part of the hinge is rotatably connected to one side of the lower hinge piece through a rotating shaft on one side. A locking bolt is provided on the other side of the upper hinge piece. The locking bolt is used to lock the hinge when it is buckled. A plurality of anti-slip bolts are also provided on the upper surface of the upper hinge piece. The bracket includes a support rod, which is installed in the buckled hinge and fixed by anti-slip bolts. An upper cover and a lower cover of a multi-beam mounting rod are provided at one end of the support rod. After being buckled with each other, they are locked by fastening bolts located at the edges of the two. The following deficiencies exist: (1) The entire mounting base for the multi-beam antenna does not have good adjustment performance and flexibility, and cannot effectively change the height and angle of the multi-beam antenna, so that its scope of use is limited; (2) The multi-beam antenna mounting base in the general prior art only installs the antenna exposed to the outside, and does not have the performance of protecting the multi-beam antenna. It is easy to be damaged by large resistance on the water surface. Moreover, since the width of the hull is different, when using a mounting base of the same specification, it cannot be effectively installed on the hull, and the installation range is limited. Therefore, it is urgent to design a base for multi-beam installation to solve the above problems. Summary of the invention

[0005] The present invention provides a base for multi-beam installation, aiming to solve the problems that the entire installation base for the multi-beam antenna does not have good adjustment performance and flexibility, cannot effectively change the height and angle of the multi-beam antenna, and the antenna is installed exposed outside and has no protection for the multi-beam antenna.

[0006] The present invention is implemented as follows: a base for multi-beam installation includes a first support rod and a second support rod, a width adjustment assembly is arranged between the opposite sides of the first support rod and the second support rod, and one end of the first support rod and one end of the second support rod are both provided with installation assemblies, one end of the first support rod and one end of the second support rod are rotatably connected to an I-shaped column, and a protective tube is fixedly installed at the bottom end of the I-shaped column by screws, a center hole is opened in the middle position of the top of the protective tube and the middle position of the I-shaped column, a lifting assembly is arranged in the middle position of the center hole, the bottom of the lifting assembly is rotatably connected to an angle adjustment assembly, and a mounting column is arranged in the middle position of the angle adjustment assembly.

[0007] Furthermore, a first connecting groove is provided at one end of the first support rod, and a docking seat is fixed to one end of the second support rod and is fitted on the inner wall of the first connecting groove. Connecting holes are provided at the end of the docking seat and the end of the first support rod. An I-shaped column passes through the interior of the connecting hole, and a bearing is fixed between the outer wall of the I-shaped column and the inner wall of the connecting hole.

[0008] Furthermore, the width adjustment component includes a fixed frame arranged between the first support rod and the second support rod, and guide openings are provided at both ends of the fixed frame, and L-shaped movable plates are movably provided between the inner walls of the two guide openings and the inner walls of the fixed frame, one end of the two L-shaped movable plates is provided with a second connecting groove, and second connecting seats are fixed on the opposite sides of the first support rod and the second support rod, a push-pull rod is rotatably connected between the second connecting seat and the inner wall of the second connecting groove, threaded holes are provided on one side of the two L-shaped movable plates, and a bidirectional screw is rotatably connected between the inner walls of the two ends of the fixed frame, the outer walls of the bidirectional screw are respectively screwed to the inner walls of the two threaded holes on both sides, and a rotating component is provided in the middle position of the bidirectional screw.

[0009] Furthermore, a reinforcement rod is fixed to the top of one end of the I-shaped column, and one end of the reinforcement rod is fixedly installed to one side of the fixing frame.

[0010] Furthermore, the rotating assembly includes a mounting hole opened in the middle position of one side of the fixed frame, and the inner wall of the mounting hole is rotatably connected to a drive shaft, a second knob is fixed to one end of the drive shaft, and a bevel gear is fixed to the other end of the drive shaft and the outer wall of the bidirectional screw, and the two bevel gears are meshed with each other.

[0011] Furthermore, the mounting assembly includes a first connecting seat rotatably connected to the other end of the first support rod and the other end of the second support rod, and a mounting base is fixed to one end of the first connecting seat, and mounting base holes are opened at four corners of the mounting base.

[0012] Furthermore, the angle adjustment assembly includes a lifting frame movably arranged in the protective tube, and a fixing hole is opened in the middle position of the bottom of the lifting frame, the outer wall of the mounting column is rotatably connected to the inner wall of the fixing hole, the outer wall of the mounting column is fixed with a worm gear arranged inside the lifting frame, a movable groove is opened on one side of the protective tube, and a guide seat passing through the inner wall of the movable groove is fixed on one side of the lifting frame, a through hole is opened between one side of the guide seat and the inner wall of the lifting frame, a worm is rotatably connected between the inner wall of the through hole and the inner wall of the lifting frame, one side of the worm is meshed with one side of the worm wheel, and a third knob is fixed to one end of the worm.

[0013] Furthermore, the circumferential inner wall of the protection tube is provided with guide grooves which are distributed at equal distances, and the circumferential outer wall of the lifting frame is fixed with guide blocks which are inserted into the guide grooves at equal distances.

[0014] Furthermore, the lifting assembly includes an internal threaded sleeve fixed at the top and bottom of the I-shaped column, and the inner walls of the two internal threaded sleeves are rotatably connected to a threaded rod passing through the center hole, a first knob is fixed to the top of the threaded rod, and the bottom of the threaded rod is rotatably connected to the top middle position of the lifting frame.

[0015] Furthermore, a mounting plate is fixed to the bottom of the mounting column, and the mounting plate is provided with positioning holes distributed at equal distances for mounting the multi-beam depth sounder.

[0016] After adopting the above structure, the present invention has the following advantages compared with the prior art:

[0017] In the present invention, the base support rod structure for the multi-beam echo sounder is formed by utilizing the cooperation of the provided installation assembly, the width adjustment assembly, the rotation assembly, the first support rod and the second support rod, as well as the I-shaped column, the lifting assembly, the protection tube and the angle adjustment assembly. The bidirectional screw is driven to rotate by the second knob and the driving shaft and the bevel gear in the rotation assembly, and the two L-shaped movable plates are driven to move in the guide port, so as to change the positions of the push-pull rod and the first support rod and the second support rod, and change the support assembly of the first support rod and the second support rod, so as to facilitate the installation of the entire installation base for the multi-beam echo sounder on the hulls of different widths, and facilitate the installation;

[0018] In the present invention, the multi-beam echo sounder can be installed in the installation plate in the protective tube by utilizing the cooperation of the provided protection tube, the lifting assembly, the installation column and the installation plate. When in use, the multi-beam echo sounder is moved out of the protection tube by the lifting assembly, and when not in use, the multi-beam echo sounder is moved into the protection tube by the lifting assembly. Thus, the entire installation base has the function of protecting the multi-beam echo sounder through the protection tube, thereby avoiding the problem of damage caused by large resistance on the water surface.

[0019] In the present invention, the I-shaped column, the protective tube, the lifting assembly and the angle adjustment assembly are coordinated, and the height of the mounting plate and the multi-beam echo sounder is adjusted by the lifting assembly, so that the multi-beam echo sounder can be installed on a survey ship with different drafts, and the meshing action of the worm and the worm wheel in the angle adjustment assembly drives the mounting column and the multi-beam echo sounder to rotate at an angle, so that the entire mounting base for the multi-beam has better adjustment performance and flexibility, effectively changes the height and angle of the multi-beam, and improves the scope of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0022] Figure 1 The figure is a schematic diagram of the overall structure of a base for multi-beam installation.

[0023] Figure 2 The present invention is a schematic diagram of the structure of a width adjustment component of a base for multi-beam installation.

[0024] Figure 3 The present invention is a schematic diagram of the guide opening and threaded hole structure of a base for multi-beam installation.

[0025] Figure 4 The present invention is a schematic diagram of the protective tube and movable groove structure of a base for multi-beam installation.

[0026] Figure 5 A cross-sectional view of a protective tube of a base for multi-beam installation.

[0027] Figure 6 The present invention is an expanded view of a first connection slot and a docking seat of a base for multi-beam installation.

[0028] Figure 7 The present invention is a schematic diagram of the structure of an angle adjustment component of a base for multi-beam installation.

[0029] Figure 8 Schematic diagram of a worm and worm gear structure for a base for multi-beam installation

[0030] Reference numerals:

[0031] 1. Mounting base; 2. First connecting seat; 3. First support rod; 4. Width adjustment assembly; 401. Fixed frame; 402. Second knob; 403. Drive shaft; 404. Bidirectional screw; 405. L-shaped movable plate; 406. Bevel gear; 407. Push-pull rod; 408. Guide port; 409. Mounting hole; 410. Threaded hole; 411. Second connecting groove; 5. Reinforcement rod; 6. Protective tube; 7. Second support rod; 8. I-shaped column; 9 , first knob; 10, threaded rod; 11, second connecting seat; 12, internal threaded sleeve; 13, movable groove; 14, bearing; 15, angle adjustment assembly; 1501, lifting frame; 1502, guide seat; 1503, third knob; 1504, worm; 1505, worm wheel; 16, guide groove; 17, mounting column; 18, center hole; 19, first connecting groove; 20, connecting hole; 21, docking seat; 22, guide block; 23, mounting plate. DETAILED DESCRIPTION

[0032] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0033] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0034] like Figures 1 to 8As shown, a base for multi-beam installation includes a first support rod 3 and a second support rod 7, a width adjustment component 4 is arranged between the opposite sides of the first support rod 3 and the second support rod 7, and one end of the first support rod 3 and one end of the second support rod 7 are both provided with a mounting component, one end of the first support rod 3 is provided with a first connecting groove 19, and one end of the second support rod 7 is fixed with a docking seat 21 that fits the inner wall of the first connecting groove 19, the ends of the docking seat 21 and the ends of the first support rod 3 are both provided with connecting holes 20, an I-shaped column 8 passes through the interior of the connecting hole 20, a bearing 14 is fixed between the outer wall of the I-shaped column 8 and the inner wall of the connecting hole 20, and one end of the first support rod 3 and one end of the second support rod 7 are rotatably connected to the working The protective tube 6 is fixedly mounted on the bottom end of the I-shaped column 8 by screws, a center hole 18 is provided at the middle position of the top of the protective tube 6 and the middle position of the I-shaped column 8, a lifting component is provided at the middle position of the center hole 18, the bottom of the lifting component is rotatably connected with an angle adjustment component 15, and a mounting column 17 is provided at the middle position of the angle adjustment component 15, the angle adjustment component 15 includes a lifting frame 1501 movably arranged in the protective tube 6, and a fixing hole is provided at the middle position of the bottom of the lifting frame 1501, the outer wall of the mounting column 17 is rotatably connected to the inner wall of the fixing hole, the outer wall of the mounting column 17 is fixed with a worm gear 1505 arranged inside the lifting frame 1501, a movable groove 13 is provided on one side of the protective tube 6, and A guide seat 1502 passing through the inner wall of the movable groove 13 is fixed on one side of the lifting frame 1501, a through hole is provided between one side of the guide seat 1502 and the inner wall of the lifting frame 1501, a worm 1504 is rotatably connected between the inner wall of the through hole and the inner wall of the lifting frame 1501, one side of the worm 1504 is meshed with one side of the worm wheel 1505, a third knob 1503 is fixed to one end of the worm 1504, the circumferential inner wall of the protective tube 6 is provided with guide grooves 16 distributed at equal distances, and the circumferential outer wall of the lifting frame 1501 is fixed with guide blocks 22 equidistantly inserted into the guide grooves 16, the lifting assembly includes an internal threaded sleeve 12 fixed to the top and bottom of the I-shaped column 8, and the inner walls of the two internal threaded sleeves 12 are rotatably connected with a screw thread passing through the middle A threaded rod 10 is provided with a core hole 18, a first knob 9 is fixed on the top of the threaded rod 10, and the bottom of the threaded rod 10 is rotatably connected to the middle position of the top of the lifting frame 1501. The multi-beam echo sounder is moved out of the protective tube 6 by the lifting assembly, and is moved into the protective tube 6 by the lifting assembly when not in use, so that the entire mounting base has the function of protecting the multi-beam echo sounder through the protective tube 6, and the multi-beam echo sounder can be installed on survey ships with different drafts, and the mounting column 17 and the multi-beam echo sounder are driven to rotate the angle through the meshing action of the worm 1504 and the worm wheel 1505 in the angle adjustment assembly, so that the entire mounting base for the multi-beam has better adjustment performance and flexibility.

[0035] Specifically, the width adjustment component 4 includes a fixed frame 401 arranged between the first support rod 3 and the second support rod 7, and guide openings 408 are provided at both ends of the fixed frame 401, and L-shaped movable plates 405 are movably provided between the inner walls of the two guide openings 408 and the inner walls of the fixed frame 401, and one end of the two L-shaped movable plates 405 is provided with a second connecting groove 411, and the second connecting seat 11 is fixed on the opposite sides of the first support rod 3 and the second support rod 7, and a push-pull rod 407 is rotatably connected between the second connecting seat 11 and the inner wall of the second connecting groove 411, and a threaded hole 410 is provided on one side of the two L-shaped movable plates 405, and a bidirectional screw 404 is rotatably connected between the inner walls of the two ends of the fixed frame 401, and the outer walls of the bidirectional screw 404 are respectively screwed to the inner walls of the two threaded holes 410 on both sides, and a rotating component is provided in the middle position of the bidirectional screw 404. A reinforcement rod 5 is fixed to the top of one end, and one end of the reinforcement rod 5 is fixedly installed on one side of the fixed frame 401. The rotating component includes a mounting hole 409 opened in the middle position of one side of the fixed frame 401, and the inner wall of the mounting hole 409 is rotatably connected to a driving shaft 403, and a second knob 402 is fixed to one end of the driving shaft 403, and a bevel gear 406 is fixed to the other end of the driving shaft 403 and the outer wall of the bidirectional screw 404, and the two bevel gears 406 are meshed with each other, and the bidirectional screw 404 is driven to rotate by the second knob 402, the driving shaft 403 and the bevel gear 406 in the rotating component, and the two L-shaped movable plates 405 are driven to move in the guide port 408, thereby changing the positions of the push-pull rod 407 and the first support rod 3 and the second support rod 7, and changing the support assembly of the first support rod 3 and the second support rod 7, so as to facilitate the installation of the entire mounting base for the multi-beam echo sounder on hulls of different widths.

[0036] Specifically, the mounting assembly includes a first connecting seat 2 rotatably connected to the other end of the first support rod 3 and the other end of the second support rod 7, and a mounting base 1 is fixed to one end of the first connecting seat 2, and mounting base holes are opened at four corners of the mounting base 1. The mounting base 1 and the mounting base holes can facilitate the fixing of the entire base for multi-beam installation on the hull.

[0037] Specifically, a mounting plate 23 is fixed to the bottom of the mounting column 17, and the mounting plate 23 is provided with positioning holes distributed at equal distances for mounting the multi-beam echo sounder.

[0038] In summary, the implementation principle of a base for multi-beam installation is as follows: when in use, the user drives the bidirectional screw 404 to rotate through the second knob 402, the drive shaft 403 and the bevel gear 406 in the rotating assembly, drives the two L-shaped movable plates 405 to move in the guide port 408, changes the position of the push-pull rod 407 and the first support rod 3 and the second support rod 7, changes the support assembly of the first support rod 3 and the second support rod 7, and facilitates the installation of the entire installation base for the multi-beam echo sounder on hulls of different widths. The user can install the multi-beam echo sounder in the installation plate 23 in the protective tube 6, and when in use, through the lifting assembly The multi-beam echo sounder is moved out of the protection tube 6 by the lifting assembly, and is moved into the protection tube 6 by the lifting assembly when not in use, so that the entire mounting base has the function of protecting the multi-beam echo sounder through the protection tube 6. When in use, the user adjusts the height of the mounting plate 23 and the multi-beam echo sounder by the lifting assembly, and the multi-beam echo sounder can be installed on survey ships with different drafts. The meshing action of the worm 1504 and the worm wheel 1505 in the angle adjustment assembly drives the mounting column 17 and the multi-beam echo sounder to rotate at an angle, so that the entire mounting base for the multi-beam has better adjustment performance and flexibility.

[0039] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply the scope of the present invention, which is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0040] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A base for multi-beam installation, comprising a first support rod (3) and a second support rod (7), characterized in that: A width adjustment assembly (4) is arranged between the opposite sides of the first support rod (3) and the second support rod (7), and a mounting assembly is arranged at one end of the first support rod (3) and one end of the second support rod (7), the width adjustment assembly (4) comprises a fixing frame (401) arranged between the first support rod (3) and the second support rod (7), and guide openings (408) are provided at both ends of the fixing frame (401), L-shaped movable plates (405) are movably arranged between the inner walls of the two guide openings (408) and the inner wall of the fixing frame (401), a second connecting groove (411) is provided at one end of the two L-shaped movable plates (405), and the second connecting groove (411) is fixed at the opposite sides of the first support rod (3) and the second support rod (7). The connecting seat (11) is provided with a push-pull rod (407) rotatably connected between the inner wall of the second connecting seat (11) and the second connecting groove (411), a threaded hole (410) is provided on one side of the two L-shaped movable plates (405), and a bidirectional screw (404) is rotatably connected between the inner walls of both ends of the fixed frame (401), and the outer walls of the bidirectional screw (404) are respectively screwed to the inner walls of the two threaded holes (410), and a rotating assembly is arranged in the middle position of the bidirectional screw (404), and the rotating assembly includes a mounting hole (409) provided in the middle position of one side of the fixed frame (401), and the inner wall of the mounting hole (409) is rotatably connected to a driving shaft (403), and a second knob (402) is fixed to one end of the driving shaft (403) The other end of the driving shaft (403) and the outer wall of the bidirectional screw (404) are both fixed with a bevel gear (406), and the two bevel gears (406) are meshed with each other. One end of the first support rod (3) and one end of the second support rod (7) are rotatably connected to an I-shaped column (8), and a protective tube (6) is fixedly installed on the bottom end of the I-shaped column (8) by screws. A center hole (18) is opened at the middle position of the top of the protective tube (6) and the middle position of the I-shaped column (8). A lifting component is arranged at the middle position of the center hole (18), and the lifting component includes an internal threaded sleeve (12) fixed to the top and bottom of the I-shaped column (8), and the inner walls of the two internal threaded sleeves (12) are rotatably connected to a threaded rod (10) passing through the center hole (18). A first knob (9) is fixed to the top of the threaded rod (10), and the bottom of the threaded rod (10) is rotatably connected to the middle position of the top of the lifting frame (1501). The bottom of the lifting assembly is rotatably connected to the angle adjustment assembly (15), and a mounting column (17) is arranged at the middle position of the angle adjustment assembly (15). The angle adjustment assembly (15) comprises a lifting frame (1501) movably arranged in the protective tube (6), and a fixing hole is provided at the middle position of the bottom of the lifting frame (1501). The outer wall of the mounting column (17) is rotatably connected to the inner wall of the fixing hole. A worm gear (1505) arranged inside the lifting frame (1501) is fixed to the outer wall of the mounting column (17), and a movable groove (13) is provided on one side of the protective tube (6).A guide seat (1502) passing through the inner wall of the movable groove (13) is fixed on one side of the lifting frame (1501), a through hole is provided between one side of the guide seat (1502) and the inner wall of the lifting frame (1501), a worm (1504) is rotatably connected between the inner wall of the through hole and the inner wall of the lifting frame (1501), one side of the worm (1504) is meshed with one side of the worm wheel (1505), and a third knob (1503) is fixed to one end of the worm (1504).

2. A base for multi-beam installation as claimed in claim 1, characterized in that: A first connecting groove (19) is formed at one end of the first supporting rod (3), and a docking seat (21) is fixed at one end of the second supporting rod (7) and is fitted to the inner wall of the first connecting groove (19). The ends of the docking seat (21) and the ends of the first supporting rod (3) are both provided with connecting holes (20), the I-shaped column (8) passes through the interior of the connecting hole (20), and a bearing (14) is fixed between the outer wall of the I-shaped column (8) and the inner wall of the connecting hole (20).

3. A base for multi-beam installation as claimed in claim 2, characterized in that: A reinforcing rod (5) is fixed to the top of one end of the I-shaped column (8), and one end of the reinforcing rod (5) is fixedly mounted to one side of the fixing frame (401).

4. A base for multi-beam installation as claimed in claim 3, characterized in that: The mounting assembly comprises a first connecting seat (2) rotatably connected to the other end of the first support rod (3) and the other end of the second support rod (7), and a mounting base (1) is fixed to one end of the first connecting seat (2), and mounting base holes are provided at four corners of the mounting base (1).

5. A base for multi-beam installation as claimed in claim 4, characterized in that: The circumferential inner wall of the protection tube (6) is provided with guide grooves (16) distributed at equal distances, and the circumferential outer wall of the lifting frame (1501) is fixed with guide blocks (22) inserted into the guide grooves (16) at equal distances.

6. A base for multi-beam installation as claimed in claim 1, characterized in that: A mounting plate (23) is fixed to the bottom of the mounting column (17), and the mounting plate (23) is provided with positioning holes distributed at equal distances for mounting a multi-beam depth sounder.

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