CN221049886U - Liftable sail mast for cylindrical ship - Google Patents
Liftable sail mast for cylindrical ship Download PDFInfo
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- CN221049886U CN221049886U CN202322966565.2U CN202322966565U CN221049886U CN 221049886 U CN221049886 U CN 221049886U CN 202322966565 U CN202322966565 U CN 202322966565U CN 221049886 U CN221049886 U CN 221049886U
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- 239000010410 layer Substances 0.000 claims description 21
- 239000002131 composite material Substances 0.000 claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- 239000002356 single layer Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 230000035882 stress Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000009827 uniform distribution Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000007907 direct compression Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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Abstract
The invention discloses a liftable sail mast for a cylindrical ship, which is characterized by comprising the following components: the outer mast (100) and the inner mast (200), and the inner mast (200) is slidably sleeved in the outer mast (100); the outer mast (100) comprises: an outer mast pipe wall (121) and an outer mast outer slideway (120); the inner mast (200) comprises: an inner mast pipe wall (231), an inner mast inner slide (230); the outer mast (100) is matched with the trapezoid section structure on the inner mast (200) through the trapezoid section clamping groove structure to form a locking type slideway structure. The liftable sail mast for the cylindrical ship has the advantages of simple structure, easiness in production, manufacturing and assembly, high production efficiency, low end stress of the mast, safety and reliability of the mast, and capability of avoiding the occurrence of clamping when inner and outer masts slide mutually.
Description
Technical Field
The invention relates to a liftable sail mast for a ship, in particular to a liftable sail mast for a cylindrical ship.
Background
At present, the lifting hard sail for the ship has the characteristics of meeting the altitude requirement of the ship through lifting and the like due to excellent energy saving effect, and becomes a main flow sail of the ship sail. The sail body of the liftable hard sail needs to be divided into a plurality of sections, so that the sail blades and the masts forming the sail body need to be designed and built in sections, and then the sails are combined into an integral sail through a specific connection mode; the lifting of the sail is realized by the relative sliding among the masts. A very critical design of the lifting hard sail is therefore the construction of the mast.
The prior art marine liftable masts mostly employ steel masts with polygonal cross sections, as shown in fig. 1 and 2. The number of the slideways of the polygonal section mast is more; the slide complex structure, the production is manufactured and is assembled complicatly, and production efficiency is low, and the direct extrusion effect of inlayer mast to inlayer mast makes the high stress that the mast tip produced, influences the security of mast, easily takes place the card when outer mast and inlayer mast slide each other and die scheduling problem.
Disclosure of Invention
The invention provides a cylindrical marine liftable sail mast, which aims to effectively solve the problems that the steel masts with polygonal sections are mostly adopted by the marine liftable masts in the prior art, the number of the sliding ways of the masts with polygonal sections is large, the sliding ways are of complex structures, the production and the assembly are complex, the production efficiency is low, the inner masts directly squeeze the outer masts, so that high stress is generated at the end parts of the masts, the safety of the masts is influenced, the outer masts and the inner masts are easy to be blocked when sliding mutually, and the like, and is characterized by comprising the following components:
the outer mast and the inner mast are sleeved in the outer mast in a sliding manner;
the outer mast comprises: an outer mast pipe wall and an outer mast outer slideway;
The outer mast pipe wall is cylindrical, and an outer mast outer slideway which is arranged along the full height of the pipe wall is arranged on the inner wall of the outer mast pipe wall;
The inner mast comprises: an inner mast wall and an inner mast inner slide;
The wall of the inner mast is cylindrical, and an inner mast inner slide which is arranged along the full height of the wall is arranged on the outer wall of the inner mast;
The outer mast outer slide comprises: the outer mast comprises a first outer mast outer slideway support plate, a second outer mast outer slideway support plate, an outer mast outer slideway plate and an outer mast outer slideway reinforcing plate;
One end of the first outer mast outer slideway support plate is fixedly arranged on the inner wall of the outer mast pipe wall, and one end of the second outer mast outer slideway support plate is fixedly arranged on the inner wall of the outer mast pipe wall; the two ends of the outer mast outer slideway plate are fixedly arranged on the first outer mast outer slideway supporting plate and the second outer mast outer slideway supporting plate respectively; the outer mast outer slideway reinforcing plate is fixedly arranged between the inner wall of the outer mast pipe wall and the outer mast outer slideway plate;
the wall of the outer mast pipe, the outer mast outer slideway plate and the outer mast outer slideway reinforcing plate have the same thickness;
The thickness of the first outer mast outer slideway support plate and the second outer mast outer slideway support plate is the same and is 2-2.5 times of the thickness of the outer mast pipe wall.
The inner layer inner slide in the mast comprises: an inner mast inner slide plate, a first inner mast inner slide support plate, and a second inner mast inner slide support plate;
One end of the first inner mast inner slide supporting plate is fixedly arranged on the outer wall of the inner mast pipe wall, and one end of the second inner mast inner slide supporting plate is fixedly arranged on the outer wall of the inner mast pipe wall; an inner layer mast inner sliding plate is fixedly arranged between the other end of the first inner layer mast inner sliding support plate and the other end of the second inner layer mast inner sliding support plate;
The wall of the inner mast, the inner mast inner slide plate, the first inner mast inner slide support plate and the second inner mast inner slide support plate have the same thickness;
The outer mast outer slide plate, the first outer mast outer slide support plate and the second outer mast outer slide support plate form a trapezoidal section clamping groove, and are matched with a trapezoidal section structure formed by the inner mast inner slide plate, the first inner mast inner slide support plate and the second inner mast inner slide support plate to form a locking slide structure; a first gap is formed between the first outer mast outer slide support plate and the first inner mast inner slide support plate, and a second gap is formed between the second outer mast outer slide support plate and the second inner mast inner slide support plate.
Above-mentioned cylinder type marine liftable formula sail mast, further: the number of the outer slide ways of the outer mast is 4, and the axisymmetric outer slide ways are uniformly distributed on the inner wall of the outer mast; the number of the inner-layer masts and the inner-layer masts are equal, and the axisymmetric and uniform distribution is achieved on the outer wall of the inner-layer mast pipe wall of the inner-layer masts.
Above-mentioned cylinder type marine liftable formula sail mast, further: and the matching surface of the outer slide plate of the outer mast is coated with wear-resistant materials, and the matching surface of the inner slide plate of the inner mast is coated with wear-resistant materials.
Above-mentioned cylinder type marine liftable formula sail mast, further: the outer mast and the inner mast are both made of composite materials.
Above-mentioned cylinder type marine liftable formula sail mast, further: the outer mast tube wall and the inner mast tube wall are both of a single-layer plate structure.
Above-mentioned cylinder type marine liftable formula sail mast, further: the outer mast pipe wall and the inner mast pipe wall are both of a double-layer plate structure, and reinforcing rib structures are arranged on the double-layer plate structure.
Above-mentioned cylinder type marine liftable formula sail mast, further: the outer pipe wall of the inner mast is also provided with an outer slideway of the inner mast which is arranged along the full height of the pipe wall.
Above-mentioned cylinder type marine liftable formula sail mast, further: the number of the outer slide ways of the inner mast is 4, and the axisymmetric outer slide ways are uniformly distributed on the inner wall of the inner mast and are distributed in a staggered manner with the inner slide ways of the 4 inner masts.
Above-mentioned cylinder type marine liftable formula sail mast, further: the angles of the 2 inner angles of the trapezoid section clamping groove are all 30-60 degrees.
Above-mentioned cylinder type marine liftable formula sail mast, further: the outer sides of the connection parts of the inner mast pipe wall and the inner slide supporting plate in the first inner mast and the connection parts of the inner mast pipe wall and the inner slide supporting plate in the second inner mast are respectively provided with a chamfer structure, and the widths of the gaps between the first gap and the second gap are 2mm-5mm.
Compared with the prior art, the invention has the advantages that:
(1) The outer mast wall of the outer mast is cylindrical, the inner mast wall of the inner mast is cylindrical, the number of outer mast outer slide ways is 4, and the outer mast outer slide ways are axisymmetrically and uniformly distributed on the inner wall of the outer mast; the number of the inner mast inner slide ways is 4, the axisymmetric and uniform distribution is on the outer wall of the inner mast, the outer mast outer slide ways and the inner mast inner slide ways are simple in structure and are arranged on the cylindrical mast, the manufacturing process is simple, and the production efficiency is improved.
(2) The outer mast outer slide plate and the first outer mast outer slide support plate and the second outer mast outer slide support plate form a trapezoidal section clamping groove, and are matched with a trapezoidal section structure formed by the inner mast inner slide plate, the first inner mast inner slide support plate and the second inner mast inner slide support plate to form a locking type slide structure, and the locking type slide structure adopts a trapezoidal section clamping groove structure as shown in fig. 4: the torsion transmitted by the inner layer mast inner slide is decomposed into F1 and F2, and because F1 is smaller than F, the direct extrusion action of the inner layer mast on the outer layer mast is reduced, and the high stress generated at the end part of the mast is reduced while the relative rotation between the masts is effectively prevented.
(3) The outer sides of the joints of the inner mast wall and the inner support plate of the first inner mast and the joints of the inner mast wall and the inner support plate of the second inner mast are respectively provided with a chamfer structure, so that the phenomenon of locking when the outer slide way of the outer mast and the inner slide way of the inner mast slide mutually slide is avoided.
(4) There is first clearance between first outer mast outer slide backup pad and the first inlayer mast inner slide backup pad, has the second clearance between second outer mast outer slide backup pad and the second inlayer mast inner slide backup pad, and the existence of first clearance and second clearance has reduced the assembly precision between the mast, and the assembly of mast of being convenient for has improved assembly efficiency.
Drawings
FIG. 1 is a schematic illustration of a front view of a prior art marine liftable sail mast.
FIG. 2 is a schematic illustration of a cross-sectional view of the inner and outer masts of a prior art marine liftable sail mast mated.
FIG. 3 is a schematic illustration of a cross-sectional view of the inner and outer masts of a composite cylindrical marine liftable sail mast of the present invention.
FIG. 4 is a schematic illustration of a cross-sectional view of an outer mast runner of a composite cylindrical marine liftable sail mast of the present invention.
FIG. 5 is a schematic illustration of a cross-sectional view of the inner slide of an inner layer of a composite cylindrical marine liftable sail mast of the present invention.
FIG. 6 is a schematic illustration of a partial enlarged cross-sectional view of an outer mast slide of the composite cylindrical vessel liftable sail mast in the direction A mated with an inner mast of the outer mast and a inner slide of the inner mast.
In the figure: 100 is the outer mast, 200 is the inner mast, 120 is the outer mast outer slide, 121 is the outer mast wall, 230 is the inner mast inner slide, 231 is the inner mast wall, 123 is the first outer mast outer slide support plate, 124 is the second outer mast outer slide support plate, 121 is the outer mast wall, 122 is the outer mast outer slide plate, 125 is the outer mast outer slide reinforcement plate, 232 is the inner mast inner slide plate, 233 is the first inner mast inner slide support plate, 234 is the second inner mast inner slide support plate, 401 is the first gap, and 402 is the second gap.
Detailed Description
PREFERRED EMBODIMENTS FOR CARRYING OUT THE INVENTION
A cylindrical marine liftable sail mast, comprising: an outer mast 100 and an inner mast 200, wherein the inner mast 200 is slidably sleeved in the outer mast 100;
the outer mast 100 includes: an outer mast wall 121, an outer mast outer slide 120;
The outer mast pipe wall 121 is cylindrical, and an outer mast outer slideway 120 which is arranged along the full height of the pipe wall is arranged on the inner wall of the outer mast pipe wall;
The inner mast 200 includes: an inner mast wall 231, an inner mast inner slide 230;
the inner mast pipe wall 231 is cylindrical, and an inner mast inner slide 230 which is arranged along the full height of the pipe wall is arranged on the outer wall of the inner mast pipe wall;
The outer mast outer slide 120 includes: a first outer mast outer slide support plate 123, a second outer mast outer slide support plate 124, an outer mast outer slide plate 122, and an outer mast outer slide reinforcement plate 125;
One end of the first outer mast outer slide support plate 123 is fixedly arranged on the inner wall of the outer mast pipe wall 121, and one end of the second outer mast outer slide support plate 124 is fixedly arranged on the inner wall of the outer mast pipe wall 121; the two ends of the outer mast outer slide plate 122 are fixedly arranged on a first outer mast outer slide support plate 123 and a second outer mast outer slide support plate 124 respectively; the outer mast outer slideway reinforcing plate 125 is fixedly arranged between the inner wall of the outer mast pipe wall 121 and the outer mast outer slideway plate 122;
The outer mast pipe wall 121, the outer mast outer slide plate 122 and the outer mast outer slide reinforcing plate 125 have the same thickness;
The thickness of the first outer mast outer slide support plate 123 and the second outer mast outer slide support plate 124 is the same and is 2-2.5 times the thickness of the outer mast pipe wall 121.
The inner mast inner slide 230 includes: an inner mast inner slide plate 232, a first inner mast inner slide support plate 233, a second inner mast inner slide support plate 234;
One end of the first inner mast inner slide support plate 233 is fixedly arranged on the outer wall of the inner mast pipe wall 231, and one end of the second inner mast inner slide support plate 234 is fixedly arranged on the outer wall of the inner mast pipe wall 231; an inner mast inner slide 232 is fixedly arranged between the other end of the first inner mast inner slide support plate 233 and the other end of the second inner mast inner slide support plate 234;
The thickness of the inner mast pipe wall 231, the inner mast inner slide plate 232, the first inner mast inner slide support plate 233 and the second inner mast inner slide support plate 234 is the same;
The outer mast outer slide plate 122, the first outer mast outer slide support plate 123 and the second outer mast outer slide support plate 124 form a trapezoidal section clamping groove, and are matched with a trapezoidal section structure formed by the inner mast inner slide plate 232, the first inner mast inner slide support plate 233 and the second inner mast inner slide support plate 234 to form a locking slide structure; as shown in fig. 4: the torsional force transmitted from the inner slide in the inner mast is decomposed into F1 and F2, and since F1 is smaller than F, the direct compression of the inner mast 200 against the outer mast 100 is reduced, and the high stress generated at the end of the mast is reduced while the relative rotation between the masts is effectively prevented. A first gap 401 is provided between the first outer mast outer slide support plate 123 and the first inner mast inner slide support plate 233, and a second gap 402 is provided between the second outer mast outer slide support plate 124 and the second inner mast inner slide support plate 234. The existence of the first gap 401 and the second gap 402 reduces the assembly precision between masts, facilitates the assembly of masts, and improves the assembly efficiency.
The number of the outer mast outer slide ways 120 is 4, and the outer mast outer slide ways are axisymmetrically and uniformly distributed on the inner wall of the outer mast pipe wall 121 of the outer mast 100; there are 4 inner mast inner slides 230 and are axisymmetrically and evenly distributed on the outer wall of the inner mast wall 231 of the inner mast 200.
The outer mast outer slide plate 122 has wear-resistant material applied to its mating surface, and the inner mast inner slide plate 232 has wear-resistant material applied to its mating surface.
The outer mast 100 and the inner mast 200 are both made of composite materials. The wear-resistant materials are laid on the matching surface of the outer mast outer slide plate 122, the wear-resistant materials which are well combined with the composite materials are respectively laid on the matching surface of the inner mast inner slide plate 232, and the wear-resistant materials are adhered on the matching surface of the outer mast outer slide plate 122 and the matching surface of the inner mast inner slide plate 232 of the composite material plates in the preparation process of the composite materials. The composite material is formed by an oven-vacuum bag method, the mold is a glass fiber reinforced plastic or steel mold, and the main material is prepreg; except for the inner mast inner slide plate 232 and the outer mast outer slide plate 122, the surfaces of the outer mast 100 and the inner mast 200 are subjected to corrosion prevention and aging resistance protection by adopting a sealant or paint spraying mode.
The outer mast wall 121 and the inner mast wall 231 are both of a single-layer structure.
The outer mast tube wall 121 and the inner mast tube wall 231 are both of a double-layer plate structure, and reinforcing rib structures are arranged on the double-layer plate structure. In practical design, it may be determined whether the outer mast wall 121 and the inner mast wall 231 need to be reinforced according to the mast buckling balance requirement.
The outer pipe wall of the inner mast 200 is also provided with an inner mast outer slideway 220 which is arranged along the full height of the pipe wall.
The number of the outer slide ways 220 of the inner mast is 4, and the axisymmetric outer slide ways are uniformly distributed on the inner wall of the inner mast pipe wall 231 of the inner mast 200 and are staggered with the inner slide ways 230 of the 4 inner masts. The 4 inner mast outer slide ways 220 and the 4 inner mast inner slide ways 230 are distributed in a staggered manner, so that the mast can be kept uniform in bearing force in a lifted state. The inner mast outer slide 220 has a shape that is identical to the outer mast outer slide 120, but is slightly smaller in size and can be mated with the next finer mast having a trapezoidal cross section outer slide that is identical to the inner mast inner slide 230 in shape to form a 3-stage liftable sail mast.
The angles of the 2 inner angles of the trapezoid section clamping groove are all 30-60 degrees.
The outer sides of the connection part of the inner mast pipe wall 231 and the first inner mast inner slide supporting plate 233 and the connection part of the inner mast pipe wall 231 and the second inner mast inner slide supporting plate 234 are respectively provided with a chamfer structure, and the widths of the gaps between the first gap 401 and the second gap 402 are respectively 2mm-5mm.
The ends of the outer mast 100 and the inner mast 200 are provided with snap-fit structures, so that the outer mast 100 and the inner mast 200 can be mutually clamped after being mutually slid to the ends, and the outer mast 100 and the inner mast 200 cannot mutually move along the axial direction after being clamped.
The outer mast outer slide 120 and the inner mast inner slide 230 are simple in structure, are arranged on the cylindrical mast, and are simple in manufacturing process and high in production efficiency.
The outer mast 100 and the inner mast 200 adopt a locking type slideway structure with trapezoidal section clamping grooves and trapezoidal grooves, so that the direct extrusion action of the inner mast 100 on the outer mast 200 is reduced, and the high stress generated at the end part of the masts is reduced while the relative rotation between the masts is effectively prevented.
The outer sides of the connection part of the inner mast pipe wall 231 and the first inner mast inner slide support plate 233 and the outer sides of the connection part of the inner mast pipe wall 231 and the second inner mast inner slide support plate 234 are respectively provided with a chamfer structure, so that the phenomenon of locking when the outer mast outer slide and the inner mast inner slide mutually slide is avoided.
There is a first clearance 401 between the first outer mast outer slide support plate 123 and the first inner mast inner slide support plate 233, there is a second clearance 402 between the second outer mast outer slide support plate 124 and the second inner mast inner slide support plate 234, and the presence of the first clearance 401 and the second clearance 402 reduces the assembly accuracy between the masts, facilitates the assembly of the masts, and improves the assembly efficiency.
Claims (10)
1. A cylindrical marine liftable sail mast, comprising: the outer mast (100) and the inner mast (200), and the inner mast (200) is slidably sleeved in the outer mast (100);
The outer mast (100) comprises: an outer mast pipe wall (121) and an outer mast outer slideway (120);
The outer mast pipe wall (121) is cylindrical, and an outer mast outer slideway (120) which is arranged along the full height of the pipe wall is arranged on the inner wall of the outer mast pipe wall;
The inner mast (200) comprises: an inner mast pipe wall (231), an inner mast inner slide (230);
The inner mast pipe wall (231) is cylindrical, and an inner mast inner slide (230) which is arranged along the full height of the pipe wall is arranged on the outer wall of the inner mast pipe wall;
The outer mast outer slide (120) includes: the outer mast outer slide support plate (123), the outer mast outer slide support plate (124), the outer mast outer slide plate (122) and the outer mast outer slide reinforcing plate (125);
One end of a first outer mast outer slideway support plate (123) is fixedly arranged on the inner wall of the outer mast pipe wall (121), and one end of a second outer mast outer slideway support plate (124) is fixedly arranged on the inner wall of the outer mast pipe wall (121); two ends of the outer mast outer slideway plate (122) are respectively fixedly arranged on the first outer mast outer slideway supporting plate (123) and the second outer mast outer slideway supporting plate (124); the outer mast outer slideway reinforcing plate (125) is fixedly arranged between the inner wall of the outer mast pipe wall (121) and the outer mast outer slideway plate (122);
The thickness of the outer mast pipe wall (121), the outer mast outer slideway plate (122) and the outer mast outer slideway reinforcing plate (125) are the same;
The thickness of the first outer mast outer slideway support plate (123) and the second outer mast outer slideway support plate (124) is the same and is 2-2.5 times of the thickness of the outer mast pipe wall (121);
The inner mast inner slide (230) comprises: an inner mast inner slide plate (232), a first inner mast inner slide support plate (233), a second inner mast inner slide support plate (234);
One end of the first inner mast inner slide supporting plate (233) is fixedly arranged on the outer wall of the inner mast pipe wall (231), and one end of the second inner mast inner slide supporting plate (234) is fixedly arranged on the outer wall of the inner mast pipe wall (231); an inner-layer inner mast sliding plate (232) is fixedly arranged between the other end of the first inner-layer inner mast inner sliding support plate (233) and the other end of the second inner-layer inner mast inner sliding support plate (234);
The thickness of the inner mast pipe wall (231), the inner mast inner slide plate (232), the first inner mast inner slide support plate (233) and the second inner mast inner slide support plate (234) is the same;
The outer mast outer slide plate (122) and the first outer mast outer slide support plate (123) and the second outer mast outer slide support plate (124) form a trapezoidal section clamping groove, and are matched with a trapezoidal section structure formed by the inner mast inner slide plate (232), the first inner mast inner slide support plate (233) and the second inner mast inner slide support plate (234) to form a locking slide structure; a first gap (401) is formed between the first outer mast outer slide support plate (123) and the first inner mast inner slide support plate (233), and a second gap (402) is formed between the second outer mast outer slide support plate (124) and the second inner mast inner slide support plate (234).
2. A cylindrical marine lifting sail mast according to claim 1, wherein: the number of the outer mast outer slide ways (120) is 4, and the outer mast outer slide ways are axisymmetrically and uniformly distributed on the inner wall of the outer mast pipe wall (121) of the outer mast (100); the number of the inner mast inner runners (230) is 4, and the inner runners are axisymmetrically and uniformly distributed on the outer wall of the inner mast pipe wall (231) of the inner mast (200).
3. A cylindrical marine lifting sail mast according to claim 1, wherein: the matching surface of the outer mast outer slide plate (122) is coated with wear-resistant materials, and the matching surface of the inner mast inner slide plate (232) is coated with wear-resistant materials.
4. A cylindrical marine lifting sail mast according to claim 1, wherein: the outer mast (100) and the inner mast (200) are both made of composite materials.
5. A cylindrical marine lifting sail mast according to claim 1, wherein: the outer mast tube wall (121) and the inner mast tube wall (231) are of a single-layer plate structure.
6. A cylindrical marine lifting sail mast according to claim 1, wherein: the outer mast tube wall (121) and the inner mast tube wall (231) are of a double-layer plate structure, and reinforcing rib structures are arranged on the double-layer plate structure.
7. A cylindrical marine lifting sail mast as claimed in claim 2, wherein: an inner mast outer slideway (220) which is arranged along the full height of the pipe wall is also arranged on the outer pipe wall of the inner mast (200).
8. A cylindrical marine lifting sail mast according to claim 7, wherein: the number of the outer slide ways (220) of the inner mast is 4, and the outer slide ways are axisymmetrically and uniformly distributed on the inner wall of the inner mast pipe wall (231) of the inner mast (200) and are staggered with the inner slide ways (230) of the 4 inner masts.
9. A cylindrical marine lifting sail mast according to claim 7, wherein: the angles of the 2 inner angles of the trapezoid section clamping groove are all 30-60 degrees.
10. A cylindrical marine lifting sail mast according to claim 7, wherein: the outer sides of the connection part of the inner mast pipe wall (231) and the first inner mast inner slide supporting plate (233) and the outer sides of the connection part of the inner mast pipe wall (231) and the second inner mast inner slide supporting plate (234) are respectively provided with a chamfer structure, and the widths of the gaps of the first gap (401) and the second gap (402) are 2mm-5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322966565.2U CN221049886U (en) | 2023-11-03 | 2023-11-03 | Liftable sail mast for cylindrical ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322966565.2U CN221049886U (en) | 2023-11-03 | 2023-11-03 | Liftable sail mast for cylindrical ship |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221049886U true CN221049886U (en) | 2024-05-31 |
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ID=91199640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322966565.2U Active CN221049886U (en) | 2023-11-03 | 2023-11-03 | Liftable sail mast for cylindrical ship |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221049886U (en) |
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2023
- 2023-11-03 CN CN202322966565.2U patent/CN221049886U/en active Active
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