Ship model structure transformation device of variable-form small-waterplane-area catamaran

Abstract

The invention discloses a ship model structure transformation device of a variable-form small-waterplane-area catamaran, relates to a ship model structure transformation experiment device, and aims to solve the problems that the form transformation cannot be carried out on a ship model of an existing fixed small-waterplane-area catamaran, and the towing point height cannot be manually adjusted. The towing point height adjusting assembly is installed on the ship model structure transformation assembly, the longitudinal supporting pipe set is fixedly installed on a main ship body through a plurality of bearing columns and a plurality of square pipe bases, and the vertical supporting pipe set is fixedly installed in the middle of the longitudinal supporting pipe set through a plurality of semi-detachable T-shaped three-way connecting pieces. And the transverse supporting pipe group is fixedly mounted at the end part of the longitudinal supporting pipe group through a plurality of semi-detachable T-shaped three-way connecting pieces. The method is applied to the technical field of water surface navigation.

Description

Technical Field

[0001] The invention relates to a ship model structure transformation experimental device, in particular to a ship model structure transformation device of a deformable small waterplane area catamaran. The invention is used in the field of surface navigation technology. Background Art

[0002] With the increasing demand for marine development, small waterplane area catamarans have attracted more and more attention due to their excellent seakeeping performance. The transformable small waterplane area catamaran has added a variable structure device to the conventional small waterplane area catamaran, which enables it to adapt to various sea conditions and complete the operation tasks with higher efficiency.

[0003] In the current ship model water tank test, the Chinese patent application number is CN200910053197.4, and the patent document named "Water plane motion mechanism for ship model test in water tank" proposes a water plane motion mechanism for ship model test. Although the device has high accuracy in maneuverability performance testing and a simple structure, it can only be applied to fixed ship models.

[0004] In view of the strong demand for structure transformation devices for shape-changing small waterplane area catamaran models in towing tank tests, it is necessary to provide a ship model structure transformation device that can solve the problems that the current fixed small waterplane area catamaran models cannot be transformed in shape and the towing point height cannot be adjusted manually. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that the current fixed small waterplane area catamaran ship model cannot be transformed in shape and the towing point height cannot be adjusted manually, and further provide a ship model structure transformation device for a variable shape small waterplane area catamaran.

[0006] The technical solution adopted by the present invention to solve the above problems is:

[0007] A ship model structure transformation device for a deformable small waterplane area catamaran, comprising a main hull, a ship model structure transformation component and a towing point height adjustment component;

[0008] The ship model structure transformation assembly includes a plurality of load-bearing columns, a plurality of square pipe seats, a plurality of semi-detachable T-shaped three-way connectors, a longitudinal support pipe group, a transverse support pipe group and a vertical support pipe group;

[0009] The ship model structure transformation component is installed on the main hull, and the towing point height adjustment component is installed on the ship model structure transformation component.

[0010] The longitudinal support pipe group is fixedly installed on the main hull through multiple load-bearing columns and multiple square pipe seats, the vertical support pipe group is fixedly installed on the middle part of the longitudinal support pipe group through multiple semi-detachable T-shaped three-way connectors, and the transverse support pipe group is fixedly installed on the end of the longitudinal support pipe group through multiple semi-detachable T-shaped three-way connectors.

[0011] Furthermore, a fixing screw is provided on the semi-detachable T-type three-way connector, and the semi-detachable T-type three-way connector is sleeved on the support tube of the longitudinal support tube group, and the semi-detachable T-type three-way connector is fixed to the support tube of the longitudinal support tube group by the fixing screw.

[0012] Further, the longitudinal support tube group includes a first longitudinal support tube, a second longitudinal support tube, a third longitudinal support tube and a fourth longitudinal support tube;

[0013] A load-bearing column is installed on each square tube seat, and the first longitudinal support tube and the second longitudinal support tube are fixedly installed on the main hull through four load-bearing columns and four square tube seats respectively.

[0014] The third longitudinal support tube is arranged below the first longitudinal support tube, the fourth longitudinal support tube is arranged below the second longitudinal support tube, and the third longitudinal support tube and the fourth longitudinal support tube are both installed on the main hull, and the center line of the first longitudinal support tube, the center line of the second longitudinal support tube, the center line of the third longitudinal support tube and the center line of the fourth longitudinal support tube are arranged in parallel.

[0015] Further, the vertical support tube group includes a first vertical support tube, a second vertical support tube, a third vertical support tube and a fourth vertical support tube;

[0016] The two ends of the first vertical support tube are respectively fixedly installed with a semi-detachable T-shaped three-way connector, the two ends of the second vertical support tube are respectively fixedly installed with a semi-detachable T-shaped three-way connector, the first vertical support tube is installed on the first vertical support tube and the third vertical support tube through two semi-detachable T-shaped three-way connectors, the top end of the third vertical support tube is installed on the third vertical support tube through a semi-detachable T-shaped three-way connector, the second vertical support tube is installed on the second vertical support tube and the fourth vertical support tube through two semi-detachable T-shaped three-way connectors, and the top end of the fourth vertical support tube is installed on the fourth vertical support tube through a semi-detachable T-shaped three-way connector.

[0017] Further, the transverse support tube group includes a first transverse support tube, a second transverse support tube, a third transverse support tube, a fourth transverse support tube, a fifth transverse support tube and a first six transverse support tube;

[0018] The two ends of the first transverse support tube are installed on the front end of the second longitudinal support tube and the front end of the third longitudinal support tube through two semi-detachable T-shaped three-way connectors, the two ends of the second transverse support tube are installed on the front end of the first longitudinal support tube and the front end of the fourth longitudinal support tube through two semi-detachable T-shaped three-way connectors, and the two ends of the third transverse support tube are installed on the front end of the first transverse support tube and the front end of the second transverse support tube through two semi-detachable T-shaped three-way connectors.

[0019] The two ends of the fourth transverse support tube are installed on the rear end of the second longitudinal support tube and the rear end of the third longitudinal support tube through two semi-detachable T-shaped three-way connectors, the two ends of the fifth transverse support tube are installed on the rear end of the first longitudinal support tube and the rear end of the fourth longitudinal support tube through two semi-detachable T-shaped three-way connectors, and the two ends of the sixth transverse support tube are installed on the rear end of the first transverse support tube and the rear end of the second transverse support tube through two semi-detachable T-shaped three-way connectors.

[0020] Further, the towing point height adjustment assembly includes two front nuts, two rear nuts and two connecting screws;

[0021] The third vertical support tube and the fourth vertical support tube are processed with multiple through holes along the length direction. A connecting screw is provided on a through hole on the third vertical support tube, and a connecting screw is provided on a through hole on the fourth vertical support tube. A front nut and a rear nut are threadedly connected to each connecting screw, and the front nut and the rear nut are arranged on both sides of the vertical support tube, and a tow rope hole is processed on each connecting screw.

[0022] Furthermore, the main hull includes a left hull and a right hull, the left hull and the right hull have the same structure, and the left hull includes a front support, a rear support and an underwater submersible body;

[0023] The front pillar and the rear pillar are installed on the underwater submersible body, one front pillar is fixedly installed on the first longitudinal support tube through two load-bearing columns and two square tube seats, one rear pillar is fixedly installed on the first longitudinal support tube through two load-bearing columns and two square tube seats, another front pillar is fixedly installed on the second longitudinal support tube through two load-bearing columns and two square tube seats, and another rear pillar is fixedly installed on the second longitudinal support tube through two load-bearing columns and two square tube seats.

[0024] Furthermore, it also includes a front navigation plate, a rear navigation plate and two support templates; the two support templates are respectively installed on the two ends of the first longitudinal support tube and the second longitudinal support tube, the front navigation plate is fixedly installed on the front support template, and the rear navigation plate is fixedly installed on the rear support template.

[0025] Further, it also includes an inertial measurement unit; the inertial measurement unit is installed on the front pillar.

[0026] Further, it also includes a first immovable weight, a second immovable weight, a first movable weight, and a second movable weight;

[0027] The first immovable weight and the second immovable weight are installed on the underwater submersible body, the first movable weight is installed on one supporting template, and the second movable weight is installed on another supporting template.

[0028] Beneficial effects of the present invention:

[0029] 1. The most significant benefit of the present invention is that the ship model can be structurally transformed. The purpose of structural transformation can be achieved by changing the length of the cross-arranged transverse support pipes at the front and rear of the main hull and adjusting the rotation angle of the corresponding T-shaped three-way connectors;

[0030] 2. The towing point height adjustment device cooperates with the structure transformation device to adjust the towing point height, so that the towing rope can be as close to the water surface as possible, meeting the towing point test requirements for towing a small waterplane area catamaran;

[0031] 3. The present invention does not have an overly complex structure, and the basic parts of the structure conversion device are all standard parts, which are highly economical and easy to manufacture;

[0032] 4. The structural transformation device in the present invention is assembled based on stainless steel pipes that cross longitudinally, vertically and horizontally, which can offset part of the moment exerted by waves on the hull during towing, making the overall structure more stable and the device more reliable.

[0033] 5. The present application has the advantages of transformable form, stable structure, reliable device, etc., and can be widely used in tank towing tests of small waterplane area catamarans and other ship models that require form transformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is an axonometric view of a small waterplane area catamaran model with the left sheet 4a and the right sheet 4b remaining vertical;

[0035] Figure 2 It is an axonometric view of the small waterplane area catamaran model with a variable shape when the left sheet 4a and the right sheet 4b are unfolded outwards;

[0036] Figure 3 It is an axonometric view of the left hull 4a of the main hull 1 of the deformable small waterplane area catamaran;

[0037] Figure 4 It is an axonometric view of a deformable small waterplane area catamaran ship model structure transformation component 2;

[0038] Figure 5 It is an axonometric view of the height adjustment component 3 of the towing point on the right side of the transformable small waterplane area catamaran. DETAILED DESCRIPTION

[0039] Specific implementation method 1: Combination Figure 1-Figure 5 The present embodiment is described. The present embodiment is a ship model structure transformation device for a deformable small waterplane area catamaran, which comprises a main hull 1, a ship model structure transformation component 2 and a towing point height adjustment component 3;

[0040] The ship model structure transformation assembly 2 includes a plurality of load-bearing columns 8, a plurality of square pipe seats 9, a plurality of semi-detachable T-shaped three-way connectors 10, a longitudinal support pipe group 11, a transverse support pipe group 12 and a vertical support pipe group 13;

[0041] The ship model structure transformation component 2 is installed on the main hull 1, the towing point height adjustment component 3 is installed on the ship model structure transformation component 2, the longitudinal support pipe group 11 is fixedly installed on the main hull 1 through multiple load-bearing columns 8 and multiple square pipe seats 9, the vertical support pipe group 13 is fixedly installed on the middle part of the longitudinal support pipe group 11 through multiple semi-detachable T-shaped three-way connectors 10, and the transverse support pipe group 12 is fixedly installed on the end of the longitudinal support pipe group 11 through multiple semi-detachable T-shaped three-way connectors 10.

[0042] Specific implementation method 2: Combination Figure 1-Figure 2 This embodiment is described. In this embodiment, a ship model structure transformation device of a deformable small waterplane area catamaran is provided. A fixing screw 20 is provided on the semi-detachable T-type three-way connector 10. The semi-detachable T-type three-way connector 10 is sleeved on the support pipe of the longitudinal support pipe group 11. The semi-detachable T-type three-way connector 10 is fixed to the support pipe of the longitudinal support pipe group 11 by the fixing screw 20. Other methods are the same as those in the first embodiment.

[0043] In this embodiment, the semi-detachable T-type three-way connector 10 is semi-detachable through a rotary hinge, and can be threadedly connected to the corresponding holes on the longitudinal support tube group 11, the transverse support tube group 12 and the vertical support tube group 13 by using a fixing screw 20 for fixing. When the form is changed, it is only necessary to remove the semi-detachable T-type three-way connector 10 and change the direction of its lower interface, and at the same time rotate the left sheet 4a and the right sheet 4b of the main hull 1, and then use the fixing screw 20 to connect and fix the multiple semi-detachable T-type three-way connectors 10 at the front and rear of the main hull 1 to the transverse support tube group 12.

[0044] Specific implementation method three: Combination Figure 1 , Figure 2 and Figure 4 The present embodiment is described. In the present embodiment, a ship model structure transformation device of a deformable small waterplane area catamaran is described. The longitudinal support tube group 11 includes a first longitudinal support tube 11a, a second longitudinal support tube 11b, a third longitudinal support tube 11c and a fourth longitudinal support tube 11d.

[0045] A load-bearing column 8 is installed on each square tube seat 9, and the first longitudinal support tube 11a and the second longitudinal support tube 11b are fixedly installed on the main hull 1 through four load-bearing columns 8 and four square tube seats 9 respectively.

[0046] The third longitudinal support tube 11c is arranged below the first longitudinal support tube 11a, the fourth longitudinal support tube 11d is arranged below the second longitudinal support tube 11b, and the third longitudinal support tube 11c and the fourth longitudinal support tube 11d are both installed on the main hull 1, and the center line of the first longitudinal support tube 11a, the center line of the second longitudinal support tube 11b, the center line of the third longitudinal support tube 11c and the center line of the fourth longitudinal support tube 11d are arranged in parallel. Other methods are the same as those in the first embodiment.

[0047] Specific implementation method four: Combination Figure 1 , Figure 2 and Figure 4 The present embodiment is described. In the present embodiment, a ship model structure transformation device of a deformable small waterplane area catamaran is described. The vertical support tube group 13 includes a first vertical support tube 13a, a second vertical support tube 13b, a third vertical support tube 13c and a fourth vertical support tube 13d.

[0048] A semi-detachable T-shaped three-way connector 10 is fixedly installed at both ends of the first vertical support tube 13a, and a semi-detachable T-shaped three-way connector 10 is fixedly installed at both ends of the second vertical support tube 13b. The first vertical support tube 13a is installed on the first vertical support tube 13a and the third vertical support tube 13c through two semi-detachable T-shaped three-way connectors 10, and the top end of the third vertical support tube 13c is installed on the third vertical support tube 13c through a semi-detachable T-shaped three-way connector 10. The second vertical support tube 13b is installed on the second vertical support tube 13b and the fourth vertical support tube 13d through two semi-detachable T-shaped three-way connectors 10, and the top end of the fourth vertical support tube 13d is installed on the fourth vertical support tube 13d through a semi-detachable T-shaped three-way connector 10. Other methods are the same as those in the third specific embodiment.

[0049] Specific implementation method five: combination Figure 1 , Figure 2 and Figure 4 The present embodiment is described. In the present embodiment, a ship model structure transformation device of a deformable small waterplane area catamaran is described. The transverse support tube group 12 includes a first transverse support tube 12a, a second transverse support tube 12b, a third transverse support tube 12c, a fourth transverse support tube 12d, a fifth transverse support tube 12e and a first six transverse support tube 12f.

[0050] The two ends of the first transverse support tube 12a are installed on the front end of the second longitudinal support tube 11b and the front end of the third longitudinal support tube 11c through two semi-detachable T-shaped three-way connectors 10, the two ends of the second transverse support tube 12b are installed on the front end of the first longitudinal support tube 11a and the front end of the fourth longitudinal support tube 11d through two semi-detachable T-shaped three-way connectors 10, and the two ends of the third transverse support tube 12c are installed on the front end of the first transverse support tube 12a and the front end of the second transverse support tube 12b through two semi-detachable T-shaped three-way connectors 10.

[0051] The two ends of the fourth transverse support tube 12d are installed on the rear end of the second longitudinal support tube 11b and the rear end of the third longitudinal support tube 11c through two semi-detachable T-shaped three-way connectors 10, the two ends of the fifth transverse support tube 12e are installed on the rear end of the first longitudinal support tube 11a and the rear end of the fourth longitudinal support tube 11d through two semi-detachable T-shaped three-way connectors 10, and the two ends of the sixth transverse support tube 12f are installed on the rear end of the first transverse support tube 12a and the rear end of the second transverse support tube 12b through two semi-detachable T-shaped three-way connectors 10. Other methods are the same as those in the third specific embodiment.

[0052] By changing the lengths of the first transverse support tube 12a, the second transverse support tube 12b, the third transverse support tube 12c, the fourth transverse support tube 12d, the fifth transverse support tube 12e and the first six transverse support tubes 12f which are cross-arranged at the front and rear of the main hull 1, and adjusting the rotation angles of the corresponding multiple semi-detachable T-shaped three-way connectors 10, and then using the fixing screws 20 for fixed connection, the structural stability of the main hull 1 can be ensured when it is in multiple forms.

[0053] The first transverse support tube 12a and the second transverse support tube 12b are located at the front of the main hull 1 and cross each other. The fourth transverse support tube 12d and the fifth transverse support tube 12e are located at the rear of the main hull 1 and cross each other. The purpose is to provide support for the left sheet 4a and the right sheet 4b to make the overall structure more stable and prevent the rotation angle of the pillar from being changed due to the wave force in the water pool during the test, thereby preventing the test device and measuring instruments from being damaged.

[0054] Specific implementation method six: Combination Figure 4 and Figure 5 The present embodiment is described as a ship model structure transformation device of a deformable small waterplane area catamaran, wherein the towing point height adjustment assembly 3 includes two front nuts 15a, two rear nuts 15b and two connecting screws 16;

[0055] A plurality of through holes 14 are processed along the length direction on the third vertical support tube 13c and the fourth vertical support tube 13d, a connecting screw 16 is provided on one through hole 14 on the third vertical support tube 13c, a connecting screw 16 is provided on one through hole 14 on the fourth vertical support tube 13d, a front nut 15a and a rear nut 15b are threadedly connected to each connecting screw 16, and the front nut 15a and the rear nut 15b are arranged on both sides of the vertical support tube, and a tow rope hole 17 is processed on each connecting screw 16. Other methods are the same as those in the fourth embodiment.

[0056] In this embodiment, through holes 14 are preset at the drag point positions at different heights of the third vertical support tube 13c or the fourth vertical support tube 13d, and the screw rod 16 is connected by the front nut 15a and the rear nut 15b. The connecting screw rod 16 is provided with a tow rope hole 17 to meet the requirements of different drag point heights after the shape transformation. The third vertical support tube 13c and the fourth vertical support tube 13d are provided with six through holes 14. When the left sheet 4a and the right sheet 4b are unfolded outward, different unfolding angles correspond to different drag point hole positions 14, respectively, to meet the requirements of different drag point heights after the shape transformation.

[0057] Specific implementation method seven: Combination Figure 1-Figure 3 The present embodiment is described. The present embodiment is a ship model structure transformation device of a deformable small waterplane area catamaran. The main hull 1 includes a left sheet 4a and a right sheet 4b. The left sheet 4a and the right sheet 4b have the same structure. The left sheet 4a includes a front support 5, a rear support 6 and an underwater submersible 7.

[0058] The front support 5 and the rear support 6 are installed on the underwater submersible body 7, one front support 5 is fixedly installed on the first longitudinal support tube 11a through two bearing columns 8 and two square tube seats 9, one rear support 6 is fixedly installed on the first longitudinal support tube 11a through two bearing columns 8 and two square tube seats 9, another front support 5 is fixedly installed on the second longitudinal support tube 11b through two bearing columns 8 and two square tube seats 9, and another rear support 6 is fixedly installed on the second longitudinal support tube 11b through two bearing columns 8 and two square tube seats 9. Other methods are the same as those in the third embodiment.

[0059] The front pillar 5 and the rear pillar 6 are both provided with an upper steel plate 25, and the front pillar 5 and the rear pillar 6 are connected to the load-bearing column 8 through the upper steel plate 25. The midship section of the underwater submersible 7 is a straight section, and the bow and stern sections are curved sections with a certain curvature. The cross-sections of the front pillar 5 and the rear pillar 6 are both airfoil-shaped. The entire ship adopts a glass fiber reinforced plastic shell, and foam is used as a filling matrix.

[0060] Specific implementation method eight: Combination Figure 1-Figure 2This embodiment is described. This embodiment is a ship model structure transformation device of a deformable small waterplane area catamaran, which also includes a front navigation piece 18, a rear navigation piece 19 and two support templates 22; the two support templates 22 are respectively installed on the two ends of the first longitudinal support tube 11a and the second longitudinal support tube 11b, the front navigation piece 18 is fixedly installed on the front support template 22, and the rear navigation piece 19 is fixedly installed on the rear support template 22. Other methods are the same as those of the specific embodiment 5.

[0061] Specific implementation method nine: Combination Figure 1-Figure 2 The present embodiment is described as a ship model structure transformation device of a deformable small waterplane area catamaran, which further includes an inertial measurement unit 24; the inertial measurement unit 24 is installed on the front support 5. Other methods are the same as those of the seventh embodiment.

[0062] Specific implementation method ten: Combination Figure 1-Figure 3 The present embodiment is described. The present embodiment is a ship model structure transformation device of a deformable small waterplane area catamaran, which further includes a first immovable weight 21a, a second immovable weight 21b, a first movable weight 23a and a second movable weight 23b;

[0063] The first immovable weight 21a and the second immovable weight 21b are installed on the underwater submersible body 7, the first movable weight 23a is installed on one supporting template 22, and the second movable weight 23b is installed on another supporting template 22. Other methods are the same as those in the eighth embodiment.

[0064] The guide lines of the bow and stern sections of the lower submersible body 7 are fitted by uniform B-spline curves, and the first immovable weight 21a and the second immovable weight 21b are arranged at the bottom of the keel of the lower submersible body 7.

[0065] The above-mentioned specific implementation can be partially adjusted in different ways by those skilled in the art without departing from the principle and purpose of the present invention. The protection scope of the present invention shall be based on the claims and shall not be limited by the above-mentioned specific implementation. Each implementation scheme within its scope shall be subject to the constraints of the present invention.

Claims

1. A ship model structure transformation device for a deformable small waterplane area catamaran, comprising a main hull (1), a ship model structure transformation component (2) and a towing point height adjustment component (3); Features: The ship model structure transformation assembly (2) comprises a plurality of load-bearing columns (8), a plurality of square pipe seats (9), a plurality of semi-detachable T-shaped three-way connectors (10), a longitudinal support pipe group (11), a transverse support pipe group (12) and a vertical support pipe group (13); The ship model structure transformation component (2) is installed on the main hull (1), and the towing point height adjustment component (3) is installed on the ship model structure transformation component (2). The longitudinal support pipe group (11) is fixedly mounted on the main hull (1) via a plurality of load-bearing columns (8) and a plurality of square pipe seats (9); the vertical support pipe group (13) is fixedly mounted on the middle of the longitudinal support pipe group (11) via a plurality of semi-detachable T-shaped three-way connectors (10); and the transverse support pipe group (12) is fixedly mounted on the end of the longitudinal support pipe group (11) via a plurality of semi-detachable T-shaped three-way connectors (10).

2. The ship model structure transformation device of a deformable small waterplane area catamaran according to claim 1, characterized in that: A fixing screw (20) is provided on the semi-detachable T-shaped three-way connector (10), the semi-detachable T-shaped three-way connector (10) is sleeved on the support pipe of the longitudinal support pipe group (11), and the semi-detachable T-shaped three-way connector (10) is fixed on the support pipe of the longitudinal support pipe group (11) by the fixing screw (20).

3. The ship model structure transformation device of a deformable small waterplane area catamaran according to claim 1, characterized in that: The longitudinal support tube group (11) comprises a first longitudinal support tube (11a), a second longitudinal support tube (11b), a third longitudinal support tube (11c) and a fourth longitudinal support tube (11d); A load-bearing column (8) is installed on each square tube seat (9), and the first longitudinal support tube (11a) and the second longitudinal support tube (11b) are fixedly installed on the main hull (1) through four load-bearing columns (8) and four square tube seats (9), respectively. The third longitudinal support tube (11c) is arranged below the first longitudinal support tube (11a), and the fourth longitudinal support tube (11d) is arranged below the second longitudinal support tube (11b), and the third longitudinal support tube (11c) and the fourth longitudinal support tube (11d) are both installed on the main hull (1), and the center line of the first longitudinal support tube (11a), the center line of the second longitudinal support tube (11b), the center line of the third longitudinal support tube (11c) and the center line of the fourth longitudinal support tube (11d) are arranged in parallel.

4. The ship model structure transformation device of a deformable small waterplane area catamaran according to claim 3, characterized in that: The vertical support tube group (13) comprises a first vertical support tube (13a), a second vertical support tube (13b), a third vertical support tube (13c) and a fourth vertical support tube (13d); A semi-detachable T-shaped three-way connector (10) is fixedly mounted on both ends of the first vertical support tube (13a), and a semi-detachable T-shaped three-way connector (10) is fixedly mounted on both ends of the second vertical support tube (13b). The first vertical support tube (13a) is mounted on the first vertical support tube (13a) and the third vertical support tube (13c) via two semi-detachable T-shaped three-way connectors (10). The top end of the third vertical support tube (13c) is mounted on the third vertical support tube (13c) via a semi-detachable T-shaped three-way connector (10). The second vertical support tube (13b) is mounted on the second vertical support tube (13b) and the fourth vertical support tube (13d) via two semi-detachable T-shaped three-way connectors (10). The top end of the fourth vertical support tube (13d) is mounted on the fourth vertical support tube (13d) via a semi-detachable T-shaped three-way connector (10).

5. The ship model structure transformation device of a deformable small waterplane area catamaran according to claim 3, characterized in that: The transverse support tube group (12) comprises a first transverse support tube (12a), a second transverse support tube (12b), a third transverse support tube (12c), a fourth transverse support tube (12d), a fifth transverse support tube (12e) and a first six transverse support tubes (12f); The two ends of the first transverse support tube (12a) are mounted on the front end of the second longitudinal support tube (11b) and the front end of the third longitudinal support tube (11c) through two semi-detachable T-shaped three-way connectors (10); the two ends of the second transverse support tube (12b) are mounted on the front end of the first longitudinal support tube (11a) and the front end of the fourth longitudinal support tube (11d) through two semi-detachable T-shaped three-way connectors (10); the two ends of the third transverse support tube (12c) are mounted on the front end of the first transverse support tube (12a) and the front end of the second transverse support tube (12b) through two semi-detachable T-shaped three-way connectors (10); The two ends of the fourth transverse support tube (12d) are installed on the rear end of the second longitudinal support tube (11b) and the rear end of the third longitudinal support tube (11c) through two semi-detachable T-shaped three-way connectors (10), the two ends of the fifth transverse support tube (12e) are installed on the rear end of the first longitudinal support tube (11a) and the rear end of the fourth longitudinal support tube (11d) through two semi-detachable T-shaped three-way connectors (10), and the two ends of the sixth transverse support tube (12f) are installed on the rear end of the first transverse support tube (12a) and the rear end of the second transverse support tube (12b) through two semi-detachable T-shaped three-way connectors (10).

6. The ship model structure transformation device of a deformable small waterplane area catamaran according to claim 4, characterized in that: The towing point height adjustment assembly (3) comprises two front nuts (15a), two rear nuts (15b) and two connecting screws (16); A plurality of through holes (14) are machined along the length direction on the third vertical support tube (13c) and the fourth vertical support tube (13d); a connecting screw (16) is provided on a through hole (14) on the third vertical support tube (13c); a connecting screw (16) is provided on a through hole (14) on the fourth vertical support tube (13d); a front nut (15a) and a rear nut (15b) are threadedly connected to each connecting screw (16); the front nut (15a) and the rear nut (15b) are arranged on both sides of the vertical support tube; and a towing rope hole (17) is machined on each connecting screw (16).

7. The ship model structure transformation device of a deformable small waterplane area catamaran according to claim 3, characterized in that: The main hull (1) comprises a left hull (4a) and a right hull (4b), the left hull (4a) and the right hull (4b) having the same structure, and the left hull (4a) comprises a front support (5), a rear support (6) and an underwater submersible body (7); The front pillar (5) and the rear pillar (6) are installed on the underwater submersible (7); one front pillar (5) is fixedly installed on the first longitudinal support tube (11a) through two load-bearing columns (8) and two square tube seats (9); one rear pillar (6) is fixedly installed on the first longitudinal support tube (11a) through two load-bearing columns (8) and two square tube seats (9); another front pillar (5) is fixedly installed on the second longitudinal support tube (11b) through two load-bearing columns (8) and two square tube seats (9); and another rear pillar (6) is fixedly installed on the second longitudinal support tube (11b) through two load-bearing columns (8) and two square tube seats (9).

8. The ship model structure transformation device of a deformable small waterplane area catamaran according to claim 5, characterized in that: It also comprises a front navigation plate (18), a rear navigation plate (19) and two support templates (22); the two support templates (22) are respectively mounted on the two ends of a first longitudinal support tube (11a) and a second longitudinal support tube (11b); the front navigation plate (18) is fixedly mounted on the front support template (22); and the rear navigation plate (19) is fixedly mounted on the rear support template (22).

9. The ship model structure transformation device of a deformable small waterplane area catamaran according to claim 7, characterized in that: It also includes an inertial measurement unit (24); the inertial measurement unit (24) is mounted on the front pillar (5).

10. The ship model structure transformation device of a deformable small waterplane area catamaran according to claim 8, characterized in that: It also includes a first immovable weight (21a), a second immovable weight (21b), a first movable weight (23a) and a second movable weight (23b); The first immovable weight (21a) and the second immovable weight (21b) are installed on the underwater submersible body (7), the first movable weight (23a) is installed on one supporting template (22), and the second movable weight (23b) is installed on another supporting template (22).

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