Spacing-adjustable catamaran
By installing adjustable rods and mounting structures on the catamaran, the problem of balancing stability and flexibility caused by fixed hull spacing was solved, thus improving performance under different navigation conditions.
Patent Information
- Application Number
- CN202520467444.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-18
AI Technical Summary
The fixed hull spacing of existing catamarans makes it difficult to balance lateral stability and maneuverability, thus affecting the overall performance of the catamaran.
It adopts an adjustable adjustment rod and mounting base structure, and locks the adjustment rod and mounting base with locking components to adjust the distance between the two hulls to adapt to different navigation needs.
It improves the lateral stability of catamarans during stable navigation and enhances their maneuverability when passing through narrow areas, thereby improving the overall performance of catamarans.
Smart Images

Figure CN223919512U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of unmanned vessels, and in particular to a catamaran with adjustable pitch. Background Technology
[0002] Catamarans consist of two long, narrow hulls arranged in parallel and connected by a sturdy deck or truss, forming a wide base that significantly enhances their resistance to wind and waves and stability, making them an important choice for maritime transportation, recreation, and special missions.
[0003] Currently, a cantilevered ROV recovery and release catamaran with announcement number CN222432547U includes a pair of parallel and separate hulls connected by a pair of connecting bridges. A support platform is set on the two connecting bridges. An electrical control box is set on one side of the top of the support platform, and a lifting drive device is set on the other side of the support platform. The drive end of the lifting drive device is equipped with an ROV mounting cantilever assembly.
[0004] Regarding the aforementioned technologies, the greater the distance between the two parallel and separate hulls of a catamaran, the better its lateral stability should be. However, when a catamaran passes through a narrow area, an excessively large distance can actually hinder its passage. Typically, the distance between the two parallel and separate hulls of a catamaran is fixed, making it difficult to balance lateral stability and maneuverability, resulting in poor overall performance. Utility Model Content
[0005] In order to facilitate the adjustment of the distance between the two hulls and thus improve the overall performance of the catamaran, this application provides a catamaran with adjustable distance.
[0006] The adjustable-spacing catamaran provided in this application adopts the following technical solution:
[0007] An adjustable-pitch catamaran includes:
[0008] The ship has two hulls, which are arranged in parallel.
[0009] A support platform is set between the two parallel hulls;
[0010] An adjusting bracket includes a mounting base and an adjusting rod. The mounting base is fixedly connected to the support platform. One end of the adjusting rod passes through the mounting base, and the other end is mounted on the hull. The mounting base has a locking hole, and the adjusting rod has several adjusting holes along the axial direction. When the adjusting hole corresponds to the locking hole, it is used for a locking element to pass through to lock the mounting base and the adjusting rod.
[0011] By adopting the above technical solution, when it is necessary to make the platform more stable during travel, the corresponding positions of the adjustment hole on the adjustment rod and the locking hole on the mounting base are adjusted to increase the distance of the adjustment rod extending out of the mounting base. Then, the mounting base and the adjustment rod are locked by the locking device, thereby increasing the distance between the two hulls and making the catamaran more laterally stable.
[0012] When the catamaran needs to pass through a narrow area, the corresponding positions of the adjustment hole on the adjustment rod and the locking hole on the mounting base are adjusted again to reduce the distance the adjustment rod extends out of the mounting base. Then, the locking device is used to lock the mounting base and the adjustment rod, thereby reducing the distance between the two hulls and allowing the catamaran to pass through the narrow area smoothly.
[0013] By using the mounting base and adjusting rod, the distance between the two hulls can be adjusted. When the catamaran needs to navigate stably, increasing the distance between the two hulls improves its lateral stability. When the catamaran needs to pass through narrow areas, decreasing the distance between the two hulls makes it more maneuverable, thereby improving the overall efficiency of the catamaran.
[0014] Optionally, multiple sets of the adjustment brackets are provided, and the multiple sets of adjustment brackets are symmetrically arranged about the support platform.
[0015] By adopting the above technical solution, the symmetrically arranged adjustment brackets can evenly distribute the load on the bearing platform, avoid uneven force on the bearing platform, improve the stability and durability of the overall structure, and also help to balance during adjustment to prevent excessive force on one side.
[0016] Optionally, the support platform has multiple mounting holes, and the mounting base is installed at the opening of the mounting holes so that the adjusting rod passes through the mounting holes.
[0017] By adopting the above technical solution, the setting of multiple mounting holes makes the installation position of the mounting base more flexible, and the mounting holes can also play a guiding role, making it convenient for the adjustment rod to move.
[0018] Optionally, the adjusting rod is bent.
[0019] By adopting the above technical solution, the bent adjustment rod can be positioned above the hull, thus allowing the platform to be away from the water surface.
[0020] Optionally, a buffer assembly is provided between the adjusting rod and the hull.
[0021] By adopting the above technical solutions, the buffer components reduce the impact or vibration experienced by the hull when sailing in waves, which not only makes the catamaran sail more stably, but also protects the structure and extends its service life.
[0022] Optionally, a mounting base plate is provided between the buffer assembly and the hull, with one side of the mounting base plate fixedly connected to the hull and the other side fixedly connected to the buffer assembly.
[0023] By adopting the above technical solution, the substrate is used as the connection base between the buffer assembly and the hull, which disperses the stress on the buffer assembly, avoids excessive local stress, and facilitates the installation and replacement of the buffer assembly.
[0024] Optionally, the buffer assembly includes a buffer leg, a push rod leg, a buffer bracket, and a buffer push rod. The buffer leg and the push rod leg are both fixedly connected to the mounting base plate. One end of the buffer bracket is hinged to the buffer leg, and the other end is hinged to the adjusting rod. One end of the buffer push rod is hinged to the buffer leg, and the other end is hinged to the buffer bracket. The buffer push rod is used to push the buffer bracket away from the push rod leg.
[0025] By adopting the above technical solution, when the hull is sailing in waves, the impact or vibration experienced by the hull is transmitted to the mounting base plate. The mounting base plate transmits the impact or vibration to the buffer bracket through the buffer feet, and also to the buffer push rod through the push rod feet. At this time, the buffer bracket is abutted by the adjusting rod, causing the buffer bracket to rotate toward the push rod feet, thereby compressing the buffer push rod. This reduces the amplitude of the impact or vibration transmitted to the adjusting rod, making the support platform more stable during operation, reducing the stress on the adjusting rod, protecting the adjusting rod structure, and extending its service life.
[0026] Optionally, handles are provided at both ends of the hull.
[0027] By adopting the above technical solution, the handle is designed to facilitate the handling and adjustment of the hull position.
[0028] Optionally, a traction ring is provided on the upper side of the hull.
[0029] By adopting the above technical solution, the setting of the towing ring facilitates the connection of ropes, which enables the hull to be fixed and facilitates towing or mooring.
[0030] Optionally, a fixing lug is fixedly connected to the support platform, a connecting lug is hinged to the fixing lug, a connecting cylinder is fixedly connected to the connecting lug, a connecting rod is passed through the connecting cylinder, and the end of the connecting rod away from the connecting cylinder is installed on the hull.
[0031] By adopting the above technical solution, and utilizing the cooperation of the connecting cylinder and the connecting rod, the length of the control connecting rod within the connecting cylinder is adjusted to synchronously adapt to the distance between the two hulls adjusted by the bracket.
[0032] The hinged connection between the fixed lug and the connecting lug allows the connecting cylinder to rotate relative to the support platform, reducing the damage to the connecting cylinder when the hull is subjected to impact or vibration.
[0033] Meanwhile, the connection of the connecting cylinder, connecting rod, fixing lug, and fixing of the connecting lug, together with the fixing of the adjusting bracket, forms multiple supports, which improves the reliability of the connection between the hull and the support platform.
[0034] In summary, this application includes at least one of the following beneficial technical effects:
[0035] By coordinating the hull, support platform, mounting base, adjusting rod, locking hole, and adjustment hole, the distance between the two hulls can be adjusted. When the catamaran needs to navigate stably, increasing the distance between the two hulls improves its lateral stability. When the catamaran needs to pass through narrow areas, decreasing the distance between the two hulls makes it more maneuverable, thereby improving the overall performance of the catamaran.
[0036] The combination of buffer feet, push rod feet, buffer brackets, and buffer push rods makes the platform more stable during travel, which protects the adjustment rod structure and extends its service life.
[0037] By adjusting the cooperation of the bracket, fixing lug, connecting lug, connecting cylinder and connecting rod, multiple supports are formed, thereby improving the reliability of the connection between the hull and the support platform. Attached Figure Description
[0038] Figure 1 This is a structural schematic diagram of an adjustable-spacing catamaran in an embodiment of this application.
[0039] Figure 2 This is a structural schematic diagram of the hull, support platform, and adjustment bracket in the embodiments of this application.
[0040] Figure 3 This is a schematic diagram of the structure of the adjustment bracket, buffer assembly, and mounting base plate in the embodiments of this application.
[0041] Explanation of reference numerals in the attached figures:
[0042] 1. Hull; 2. Support platform; 21. Mounting hole; 22. Fixing lug; 3. Adjusting bracket; 31. Mounting seat; 32. Adjusting rod; 33. Locking hole; 34. Adjusting hole; 4. Connecting lug; 41. Connecting cylinder; 42. Connecting rod; 5. Buffer assembly; 51. Buffer support leg; 52. Push rod support leg; 53. Buffer bracket; 54. Buffer push rod; 6. Mounting base plate; 7. Handle; 8. Traction ring. Detailed Implementation
[0043] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.
[0044] This application discloses an adjustable-spacing catamaran.
[0045] Reference Figure 1 and Figure 2 An adjustable-gap catamaran includes a hull 1, a support platform 2, and an adjustment bracket 3. Two hulls 1 are provided, arranged parallel to each other. The support platform 2 is positioned between the two parallel hulls 1. The adjustment bracket 3 includes a mounting base 31 and an adjustment rod 32. The mounting base 31 is fixedly connected to the support platform 2. One end of the adjustment rod 32 passes through the mounting base 31, and the other end is mounted on the hull 1. The mounting base 31 has a locking hole 33, and the adjustment rod 32 has several adjustment holes 34 along its axial direction. When the adjustment holes 34 correspond to the locking holes 33, a locking element is inserted to lock the mounting base 31 and the adjustment rod 32. By utilizing the cooperation of the mounting base 31 and the adjustment rod 32, the distance between the two hulls 1 can be adjusted, thereby improving the overall efficiency of the catamaran.
[0046] Multiple sets of adjustment brackets 3 are provided. In this embodiment, there are 4 sets of adjustment brackets 3. In other embodiments, there may be 6 sets or 8 sets. Two sets of adjustment brackets 3 are provided on each side of the bearing platform 2. The adjustment brackets 3 on both sides of the bearing platform 2 are symmetrically arranged. The symmetrically arranged adjustment brackets 3 can evenly distribute the load of the bearing platform 2 and avoid uneven force on the bearing platform 2.
[0047] The four sets of adjustable supports 3 help to balance the support 3 supporting the bearing platform 2, prevent excessive force on one side, and improve the stability and durability of the overall structure.
[0048] In this embodiment, the support platform 2 is rectangular in shape and has multiple mounting holes 21 evenly spaced along one side of the support platform 2. A mounting base 31 is installed at the opening of each mounting hole 21, allowing communication between the mounting base 31 and the mounting hole 21. When the adjusting rod 32 is installed in the mounting base 31, the adjusting rod 32 passes through the mounting hole 21. The multiple mounting holes 21 allow for more flexible installation of the mounting base 31. Furthermore, during the installation and adjustment of the adjusting rod 32, the mounting holes 21 also act as guides, facilitating the movement of the adjusting rod 32.
[0049] Meanwhile, in order to make the support platform 2 more stable, a fixed lug 22 is fixedly connected to the support platform 2. A connecting lug 4 is hinged to the fixed lug 22. A connecting cylinder 41 is fixedly connected to the connecting lug 4. A connecting rod 42 is passed through the connecting cylinder 41. The end of the connecting rod 42 away from the connecting cylinder 41 is installed on the hull 1. By using the cooperation of the connecting cylinder 41 and the connecting rod 42, the length of the connecting rod 42 at the connecting cylinder 41 is controlled, and the distance between the two hulls 1 is adjusted synchronously with the adjustment bracket 3.
[0050] The hinged engagement of the fixed lug 22 and the connecting lug 4 allows the connecting cylinder 41 to rotate relative to the support platform 2, reducing the damage to the connecting cylinder 41 when the hull 1 is subjected to impact or vibration.
[0051] The connecting cylinder 41 is also provided with a locking hole 33, and the connecting rod 42 is also provided with several adjusting holes 34 along its own axis. When the adjusting hole 34 corresponds to the locking hole 33, it is used for the locking element to pass through to lock the connecting cylinder 41 and the connecting rod 42. In this embodiment, the locking element is a bolt and nut (not shown in the attached figure). By passing the bolt through the adjusting hole 34 and the corresponding locking hole 33, the bolt is rotated to tighten the bolt and nut. At the same time, in this embodiment, the locking of the mounting base 31 and the adjusting rod 32 also adopts the bolt and nut.
[0052] In this embodiment, the two sets of adjusting brackets 3 on both sides of the support platform 2 are located in the middle and rear of the support platform 2, while the fixing ears 22 are located in front of the support platform 2. The multiple supports formed by the fixing of the connecting cylinder 41, connecting rod 42, fixing ears 22 and connecting ears 4, and the fixing of the adjusting brackets 3, improve the reliability of the connection between the hull 1 and the support platform 2.
[0053] The adjusting rod 32 is bent downwards, which allows the support platform 2 to be located above the hull 1, thus allowing the support platform 2 to be away from the water surface.
[0054] Reference Figure 3 A buffer assembly 5 is provided between the adjusting rod 32 and the hull 1, and a buffer assembly 5 is also provided between the connecting rod 42 and the hull 1. In this embodiment, the buffer assembly 5 includes a buffer support 51, a push rod support 52, a buffer bracket 53, and a buffer push rod 54. In other embodiments, the buffer assembly 5 may also be a spring or a shock-absorbing pad.
[0055] The buffer assembly 5 reduces the impact or vibration experienced by the hull 1 when it travels in waves, which not only makes the catamaran more stable but also protects the structure and extends its service life.
[0056] A mounting base plate 6 is provided between the buffer assembly 5 and the hull 1. One side of the mounting base plate 6 is fixedly connected to the hull 1, and the other side is fixedly connected to the buffer assembly 5. The base plate serves as the connection foundation between the buffer assembly 5 and the hull 1, dispersing the stress on the buffer assembly 5, avoiding excessive local stress, and facilitating the installation and replacement of the buffer assembly 5.
[0057] Both the buffer support leg 51 and the push rod support leg 52 are fixedly connected to the mounting base plate 6. One end of the buffer bracket 53 is hinged to the buffer support leg 51, and the other end is hinged to the adjusting rod 32. One end of the buffer push rod 54 is hinged to the buffer support leg 51, and the other end of the buffer push rod 54 is hinged to the buffer bracket 53. The buffer push rod 54 is used to push the buffer bracket 53 away from the push rod support leg 52.
[0058] When the hull 1 travels in waves, the impact or vibration experienced by the hull 1 is transmitted to the mounting base plate 6. The mounting base plate 6 transmits the impact or vibration to the buffer bracket 53 through the buffer support leg 51, and also to the buffer push rod 54 through the push rod support leg 52. At this time, the buffer bracket 53 is abutted by the adjusting rod 32, causing the buffer bracket 53 to rotate toward the push rod support leg 52, thereby compressing the buffer push rod 54. This reduces the amplitude of the impact or vibration transmitted to the adjusting rod 32, making the support platform 2 more stable during travel, and also reducing the stress on the adjusting rod 32, thus protecting the structure of the adjusting rod 32 and extending its service life.
[0059] Each hull 1 is equipped with handles 7 at both ends. The handles 7 at both ends of the hull 1 facilitate the handling and adjustment of the hull 1.
[0060] A towing ring 8 is provided on the upper side of the hull 1. The towing ring 8 facilitates the connection of ropes, allowing the hull 1 to be fixed in place for towing or mooring.
[0061] The implementation principle of an adjustable-spacing catamaran in this application embodiment is as follows: when it is necessary to make the support platform 2 more stable during the movement, the corresponding positions of the adjustment hole 34 on the adjustment rod 32 and the locking hole 33 on the mounting base 31 are adjusted to increase the distance that the adjustment rod 32 extends out of the mounting base 31. Then, the mounting base 31 and the adjustment rod 32 are locked by the locking member, thereby increasing the spacing between the two hulls 1 and making the catamaran more laterally stable.
[0062] When the catamaran needs to pass through a narrow area, the corresponding positions of the adjustment hole 34 on the adjustment rod 32 and the locking hole 33 on the mounting base 31 are adjusted again to reduce the distance that the adjustment rod 32 extends out of the mounting base 31. Then, the mounting base 31 and the adjustment rod 32 are locked together by the locking device, thereby reducing the distance between the two hulls 1 and enabling the catamaran to pass through the narrow area smoothly.
[0063] By using the mounting base 31 and the adjusting rod 32, the distance between the two hulls 1 can be adjusted. When the catamaran needs to sail stably, the distance between the two hulls 1 is increased, which makes the catamaran more laterally stable. When the catamaran needs to pass through narrow areas, the distance between the two hulls 1 is decreased, which makes the catamaran more flexible, thereby improving the overall efficiency of the catamaran.
[0064] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. An adjustable-pitch catamaran, characterized by Include: The hull (1) is provided with two, and two said hull (1) is arranged in parallel; The bearing table (2) is arranged between the two parallel hulls (1); Adjusting support (3), including mounting seat (31) and adjusting rod (32), the mounting seat (31) is fixedly connected on the bearing table (2), one end of the adjusting rod (32) is arranged in the mounting seat (31), the other end is installed on the hull (1), the mounting seat (31) is provided with locking hole (33), the adjusting rod (32) is provided with a plurality of adjusting holes (34) along the axis direction, when the adjusting hole (34) corresponds with the locking hole (33), for locking member to pass through to lock the mounting seat (31) and the adjusting rod (32).
2. The trimaran of claim 1, wherein: The adjusting support (3) is provided with multiple groups, and multiple groups of the adjusting support (3) are symmetrically arranged about the bearing table (2).
3. The trimaran of claim 1 or 2, wherein: A plurality of mounting holes (21) are formed in the bearing table (2), and the mounting seat (31) is correspondingly mounted at the opening of the mounting hole (21), so that the adjusting rod (32) is arranged in the mounting hole (21).
4. The trimaran of claim 3, wherein: The adjusting rod (32) is arranged in a bent manner.
5. The trimaran of claim 1, wherein: The buffer assembly (5) is arranged between the adjusting rod (32) and the hull (1).
6. The trimaran of claim 5, wherein: The mounting base plate (6) is arranged between the buffer assembly (5) and the hull (1), one side of the mounting base plate (6) is fixedly connected with the hull (1), and the other side is fixedly connected with the buffer assembly (5).
7. The trimaran of claim 6, wherein: The buffer assembly (5) includes buffer leg (51), push rod leg (52), buffer support (53) and buffer push rod (54), the buffer leg (51) and the push rod leg (52) are fixedly connected on the mounting base plate (6), one end of the buffer support (53) is hinged with the buffer leg (51), the other end is hinged with the adjusting rod (32), one end of the buffer push rod (54) is hinged with the buffer leg (51), the other end of the buffer push rod (54) is hinged with the buffer support (53), and the buffer push rod (54) is used to push the buffer support (53) away from the push rod leg (52).
8. The trimaran of claim 1, wherein: The hull (1) is provided with a handle (7) at both ends.
9. The trimaran of claim 1, wherein: The upper side of the hull (1) is provided with a traction ring (8).
10. The trimaran of claim 1, wherein: The bearing table (2) is further fixedly connected with a fixed lug (22), the fixed lug (22) is hinged with a connecting lug (4), the connecting lug (4) is fixedly connected with a connecting barrel (41), the connecting barrel (41) is arranged with a connecting rod (42), one end of the connecting rod (42) away from the connecting barrel (41) is installed on the hull (1).
Citation Information
Patent Citations
Cantilever type ROV recycling and releasing catamaran
CN222432547U