Mast support of high-speed aluminum alloy law enforcement boat
By designing an aluminum alloy mast support with a sliding mechanism, the safety hazards of the mast being lowered on the law enforcement vessel were solved, achieving a reduction in length and enhanced stability, thus avoiding the risk of collision.
Patent Information
- Application Number
- CN202520011613.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-01-03
AI Technical Summary
When existing bendable ship masts are lowered on law enforcement vessels, their length is too long, easily exceeding the length of the vessel, posing a safety hazard and potentially causing a collision with the vessel's structure.
Design a mast support that includes a first upright, a second upright, and a third upright. Combine a sliding mechanism, a cylinder, and a sliding mechanism to shorten the mast length through sliding and rotation. Use pulleys to reduce friction and facilitate lowering.
This effectively shortens the length of the mast support, preventing collisions with the hull structure when the mast is lowered, thus improving safety and stability.
Smart Images

Figure CN223919516U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of ship mast technology, and specifically relates to a high-speed aluminum alloy law enforcement boat mast support. Background Technology
[0002] With the increasing emphasis placed on waterway security and marine management by the state, law enforcement vessels, as important tools for maritime law enforcement and safety supervision, have increasingly higher requirements for performance and reliability. In recent years, aluminum alloy materials have been widely used in the shipbuilding industry. Aluminum alloys have significant advantages such as low density, high strength, and good corrosion resistance, making them particularly suitable for manufacturing high-speed law enforcement vessels. Aluminum alloy law enforcement vessels are not only lightweight, which can improve speed and fuel economy, but also have strong corrosion resistance, which can effectively resist seawater erosion and extend service life.
[0003] The current announcement is for Chinese utility model patent CN214524280U, which discloses a bendable ship mast. It has a base with two support columns at the top, and a mast is movably connected between the two support columns. A counterweight box is fixedly connected to the bottom of a rotating block. A second connecting shaft and a first connecting shaft are movably connected via a support plate. A rotating rod is located between two first bevel gears. A coil is fixedly mounted on the side of the mast near the rotating rod. One end of the traction rope is fixedly connected to the coil. A winch reel is mounted on the rotating rod. When the mast flips to the left, a motor drives the rotating rod to rotate, causing the winch reel to rotate and release the traction rope. Because the traction rope is fixedly connected to the coil on one side of the mast, the traction rope provides tension to the mast, preventing the support plate from breaking due to excessive weight. The tension of the traction rope also reduces the pressure of the mast on the support plate.
[0004] Although the patent allows the mast to be lowered, the space on the law enforcement vessel is limited and the mast is quite long. If the mast is lowered directly, it will exceed the length of the law enforcement vessel, which could easily cause a safety accident. In addition, the long mast is also prone to colliding with the structure of the law enforcement vessel during the lowering process. Utility Model Content
[0005] The purpose of this invention is to provide a high-speed aluminum alloy law enforcement boat mast support, which solves the problem of existing bendable ship masts. Although the mast can be lowered, the space of the law enforcement boat is limited and the mast is long. If the mast is lowered directly, it will exceed the length of the law enforcement boat, which can easily cause safety accidents. In addition, the long mast is also prone to colliding with the structure of the law enforcement boat during the lowering process.
[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a high-speed aluminum alloy law enforcement boat mast support, comprising a first upright, a second upright, and a third upright, the first upright, the second upright, and the third upright together forming a mast support, the second upright slidingly connected within the first upright, the second upright and the third upright fixedly connected, the third upright highly integrating a radar system, a communication system, and an optoelectronic monitoring system, and a sliding mechanism provided between the first upright and the second upright;
[0007] The sliding mechanism includes a sliding cavity, a fixed sleeve, a first cylinder, a connecting block, and a first pulley. The sliding cavity is located inside the first upright. The fixed sleeve is fixedly connected to the upper end of the first upright. The second upright is slidably disposed in the sliding cavity. The first cylinder is fixedly connected to the bottom of the sliding cavity. The connecting block is fixedly connected to the lower end of the second upright. The first pulley is rotatably connected to the connecting block and contacts the inner wall of the sliding cavity. The telescopic shaft of the first cylinder is fixedly connected to the connecting block.
[0008] By adopting the above technical solution, and by setting up a first upright, a second upright, a third upright, and a sliding mechanism, the first upright, the second upright, and the third upright together form a mast support during use. The sliding mechanism can reduce the length of the mast support, making it easier to lower the mast support. The sliding mechanism includes a sliding cavity, a fixing sleeve, a first cylinder, a connecting block, and a first pulley. When it is necessary to lower the mast, the length of the mast support is first reduced. The first cylinder drives the connecting block and the second upright to move in the sliding cavity until the second upright is retracted into the sliding cavity. During the sliding process of the second upright, the first pulley contacts the inner wall of the sliding cavity, which can reduce the friction between the second upright and the sliding cavity, and can make the second upright move better. After the second upright is retracted into the sliding cavity, the overall length of the mast support is reduced. At this time, lowering the mast support can avoid collision with the structure of the law enforcement vessel.
[0009] Furthermore: a base plate is provided below the first upright, and an mounting sleeve is fixedly connected to the base plate. The first upright is rotatably connected in the mounting sleeve. A first mounting block is fixedly connected to one side of the mounting sleeve. A second cylinder is provided on the first mounting block. The telescopic shaft of the second cylinder is connected to the first upright. Both ends of the second cylinder are hinged to the first mounting block and the first upright.
[0010] By adopting the above technical solution, and by setting up a base plate, a mounting sleeve, a first mounting block, and a second cylinder, in use, the base plate is first installed on the law enforcement boat, and then the mounting sleeve is installed on the first upright, so that the first upright can rotate in the mounting sleeve, which facilitates the lowering of the mast support. Then the first mounting block can be connected to the second cylinder. Since both ends of the second cylinder are hinged to the first mounting block and the first upright, when the cylinder extends, it can drive the first upright to tilt until it is lowered, that is, the entire mast support can be lowered.
[0011] Furthermore: A connecting rope is provided below the first upright, and a counterweight is fixedly connected to the other end of the connecting rope, the counterweight being located in the mounting sleeve.
[0012] By adopting the above technical solution, and by setting up connecting ropes and counterweights, the connecting ropes can fix the counterweights to the lower end of the first upright during use. The counterweights provide the necessary weight to balance the mast support and increase the stability of the mast support.
[0013] Furthermore: a reinforcing rod is provided between the first upright and the base plate. The reinforcing rod is inclined and there are two reinforcing rods arranged symmetrically. The two ends of the reinforcing rod are respectively fixed to the base plate and the first upright by bolts.
[0014] By adopting the above technical solution, and by setting up a reinforcing rod, the reinforcing rod connects the first upright and the base plate during use. The reinforcing rod can further increase the stability of the mast support after installation. Furthermore, the reinforcing rod is connected to the first upright and the base plate by bolts. When it is necessary to lower the mast, it is only necessary to remove the bolts and take off the reinforcing rod.
[0015] Furthermore: a second mounting block is fixedly connected to the base plate. The second mounting block is located on the side away from the first mounting block. A spring is provided on the second mounting block, and the other end of the spring is connected to the first upright.
[0016] By adopting the above technical solution, and by setting a second mounting block and a spring, the second mounting block can install and fix the spring during use, and the spring can cooperate with the second cylinder to lower the mast support.
[0017] Furthermore: a fixing block is provided on the fixing sleeve, and a second pulley is rotatably connected to the fixing block, the second pulley contacting the outer wall of the second upright.
[0018] By adopting the above technical solution, by setting a fixed block and a second pulley, when the second upright moves, the second pulley on the fixed block contacts the outer wall of the second upright, which can reduce the friction between the second upright and the fixed sleeve and facilitate the movement of the second upright.
[0019] Furthermore, the mounting sleeve is equipped with a controller, which is electrically connected to the first cylinder and the second cylinder.
[0020] By adopting the above technical solution and setting up a controller, the controller can control the first cylinder and the second cylinder during use.
[0021] Furthermore: the base plate is provided with anchor bolts, and the number of anchor bolts is several and evenly distributed.
[0022] By adopting the above technical solution and setting anchor bolts, the bottom plate can be fixed to the law enforcement vessel during use, thereby fixing the mast support.
[0023] In summary, this utility model has the following beneficial effects:
[0024] By setting up a sliding mechanism, when the mast needs to be lowered, the length of the mast support is first reduced. The first cylinder drives the connecting block and the second upright to move in the sliding cavity until the second upright is retracted into the sliding cavity. During the sliding process of the second upright, the first pulley contacts the inner wall of the sliding cavity, which can reduce the friction between the second upright and the sliding cavity and make the second upright move better.
[0025] By setting up a base plate, mounting sleeve, first mounting block, and second cylinder, in use, the base plate is first installed on the law enforcement boat, and then the mounting sleeve is installed on the first upright, so that the first upright can rotate in the mounting sleeve, which facilitates the lowering of the mast support. Then the first mounting block can be connected to the second cylinder. Since both ends of the second cylinder are hinged to the first mounting block and the first upright, when the cylinder extends, it can drive the first upright to tilt until it is lowered, that is, the entire mast support can be lowered.
[0026] Based on the above improvements, the overall technical effect achieved by this device is that it can shorten the overall length of the mast support before it is laid down, thus avoiding collisions with the structure on the law enforcement vessel when the mast support is laid down. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0028] Figure 2 This is a structural schematic diagram of the connecting rope and counterweight of this utility model;
[0029] Figure 3 This is a schematic diagram of the sliding mechanism of this utility model;
[0030] Figure 4 This is a schematic diagram of the structure of the fixing block and the second pulley of this utility model.
[0031] In the diagram, 1. First upright; 2. Second upright; 3. Third upright; 4. Sliding mechanism; 5. Base plate; 6. Mounting sleeve; 7. First mounting block; 8. Second cylinder; 9. Connecting rope; 10. Counterweight; 11. Reinforcing rod; 12. Second mounting block; 13. Spring; 14. Fixing block; 15. Second pulley; 16. Controller; 17. Anchor bolt; 401. Sliding cavity; 402. Fixing sleeve; 403. First cylinder; 404. Connecting block; 405. First pulley. Detailed Implementation
[0032] The present invention will be further described in detail below with reference to the accompanying drawings.
[0033] Example:
[0034] Please see Figures 1-4 The present invention provides a technical solution: a high-speed aluminum alloy law enforcement boat mast support, comprising a first upright 1, a second upright 2 and a third upright 3, the first upright 1, the second upright 2 and the third upright 3 together forming a mast support, the second upright 2 being slidably connected within the first upright 1, the second upright 2 and the third upright 3 being fixedly connected, the third upright 3 being highly integrated with a radar system, a communication system and an optoelectronic monitoring system, and a sliding mechanism 4 being provided between the first upright 1 and the second upright 2;
[0035] The sliding mechanism 4 includes a sliding cavity 401, a fixed sleeve 402, a first cylinder 403, a connecting block 404, and a first pulley 405. The sliding cavity 401 is opened inside the first upright 1. The fixed sleeve 402 is fixedly connected to the upper end of the first upright 1. The second upright 2 is slidably arranged in the sliding cavity 401. The first cylinder 403 is fixedly connected to the inner bottom of the sliding cavity 401. The connecting block 404 is fixedly connected to the lower end of the second upright 2. The first pulley 405 is rotatably connected to the connecting block 404 and contacts the inner wall of the sliding cavity 401. The telescopic shaft of the first cylinder 403 is fixedly connected to the connecting block 404.
[0036] By setting up a first upright 1, a second upright 2, a third upright 3, and a sliding mechanism 4, the first upright 1, the second upright 2, and the third upright 3 together form a mast support during use. The sliding mechanism 4 can reduce the length of the mast support, making it easier to lower the mast support. The sliding mechanism 4 includes a sliding cavity 401, a fixing sleeve 402, a first cylinder 403, a connecting block 404, and a first pulley 405. When it is necessary to lower the mast, the length of the mast support is first reduced. The first cylinder 403 drives the connecting block 404 and the second upright 2 to move in the sliding cavity 401 until the second upright 2 is retracted into the sliding cavity 401. During the sliding process of the second upright 2, the first pulley 405 contacts the inner wall of the sliding cavity 401, which can reduce the friction between the second upright 2 and the sliding cavity 401, and make the second upright 2 move better. After the second upright 2 is retracted into the sliding cavity 401, the overall length of the mast support is reduced. At this time, lowering the mast support can avoid collision with the structure of the law enforcement vessel.
[0037] refer to Figure 1 A base plate 5 is provided below the first upright 1, and an mounting sleeve 6 is fixedly connected to the base plate 5. The first upright 1 is rotatably connected in the mounting sleeve 6. A first mounting block 7 is fixedly connected to one side of the mounting sleeve 6. A second cylinder 8 is provided on the first mounting block 7. The telescopic shaft of the second cylinder 8 is connected to the first upright 1. Both ends of the second cylinder 8 are hinged to the first mounting block 7 and the first upright 1. By setting up the base plate 5, the mounting sleeve 6, the first mounting block 7 and the second cylinder 8, in use, the base plate 5 is first installed on the law enforcement boat, and then the mounting sleeve 6 is installed on the first upright 1 so that the first upright 1 can rotate in the mounting sleeve 6, which facilitates the lowering of the mast support. Then the first mounting block 7 can be connected to the second cylinder 8. Since both ends of the second cylinder 8 are hinged to the first mounting block 7 and the first upright 1, when the cylinder extends, it can drive the first upright 1 to tilt until it is lowered, that is, the entire mast support can be lowered.
[0038] refer to Figure 2 A connecting rope 9 is provided below the first upright 1, and a counterweight 10 is fixedly connected to the other end of the connecting rope 9. The counterweight 10 is located in the mounting sleeve 6. By setting the connecting rope 9 and the counterweight 10, the connecting rope 9 can fix the counterweight 10 to the lower end of the first upright 1 during use. The counterweight 10 provides the necessary weight to balance the mast support and increase the stability of the mast support.
[0039] refer to Figure 1A reinforcing rod 11 is provided between the first upright 1 and the base plate 5. The reinforcing rod 11 is inclined and there are two reinforcing rods 11 arranged symmetrically. The two ends of the reinforcing rod 11 are fixed to the base plate 5 and the first upright 1 respectively by bolts. By providing the reinforcing rod 11, the first upright 1 and the base plate 5 are connected during use, which can further increase the stability of the mast support after installation. The reinforcing rod 11 is bolted to both the first upright 1 and the base plate 5. When the mast needs to be lowered, only the bolts need to be removed and the reinforcing rod 11 can be taken off.
[0040] refer to Figure 1 A second mounting block 12 is fixedly connected to the base plate 5. The second mounting block 12 is located on the side away from the first mounting block 7. A spring 13 is provided on the second mounting block 12. The other end of the spring 13 is connected to the first upright 1. By setting the second mounting block 12 and the spring 13, the second mounting block 12 can install and fix the spring 13 during use. The spring 13 can cooperate with the second cylinder 8 to lower the mast support.
[0041] refer to Figure 4 A fixing block 14 is provided on the fixing sleeve 402, and a second pulley 15 is rotatably connected to the fixing block 14. The second pulley 15 contacts the outer wall of the second upright 2. By setting the fixing block 14 and the second pulley 15, when the second upright 2 moves, the second pulley 15 on the fixing block 14 contacts the outer wall of the second upright 2, which can reduce the friction between the second upright 2 and the fixing sleeve 402 and facilitate the movement of the second upright 2.
[0042] refer to Figure 1 The mounting sleeve 6 is equipped with a controller 16, which is electrically connected to the first cylinder 403 and the second cylinder 8. By setting the controller 16, the controller 16 can control the first cylinder 403 and the second cylinder 8 during use.
[0043] refer to Figure 1 Anchor bolts 17 are provided on the bottom plate 5. The number of anchor bolts 17 is several and evenly distributed. By setting the anchor bolts 17, the bottom plate 5 can be fixed to the law enforcement boat during use, and the mast support can be fixed in turn.
[0044] Brief description of usage:
[0045] In use, the first upright 1, the second upright 2, and the third upright 3 together form the mast support. When the mast needs to be lowered, the length of the mast support is first reduced. The first cylinder 403 drives the connecting block 404 and the second upright 2 to move in the sliding cavity 401 until the second upright 2 is retracted into the sliding cavity 401. During the sliding of the second upright 2, the first pulley 405 contacts the inner wall of the sliding cavity 401, which can reduce the friction between the second upright 2 and the sliding cavity 401 and make the second upright 2 move better. After the second upright 2 is retracted into the sliding cavity 401, the overall length of the mast support is reduced. At this time, the mast support can be lowered to avoid collision with the structure of the law enforcement boat. When the second upright 2 moves, the second pulley 15 on the fixing block 14 contacts the outer wall of the second upright 2, which can reduce the friction between the second upright 2 and the fixing sleeve 402 and facilitate the movement of the second upright 2.
[0046] Then, the base plate 5 is installed on the law enforcement boat, and then the mounting sleeve 6 is installed on the first upright 1 so that the first upright 1 can rotate in the mounting sleeve 6, which facilitates the lowering of the mast support. Then, the first mounting block 7 can be connected to the second cylinder 8. Since both ends of the second cylinder 8 are hinged to the first mounting block 7 and the first upright 1, when the cylinder extends, it can drive the first upright 1 to tilt until it is lowered, that is, the entire mast support can be lowered. The second mounting block 12 can install and fix the spring 13. The spring 13 can cooperate with the second cylinder 8 to lower the mast support.
[0047] Finally, the connecting rope 9 can fix the counterweight 10 to the lower end of the first upright 1. The counterweight 10 provides the necessary weight to balance the mast support and increase the stability of the mast support. The reinforcing rod 11 connects the first upright 1 and the base plate 5. The reinforcing rod 11 can further increase the stability of the mast support after installation. The reinforcing rod 11 is connected to the first upright 1 and the base plate 5 by bolts. When it is necessary to lower the mast, it is only necessary to remove the bolts and take off the reinforcing rod 11.
[0048] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.
Claims
1. A high-speed aluminum alloy law enforcement boat mast support, comprising a first upright (1), a second upright (2), and a third upright (3), characterized in that: The first upright (1), the second upright (2) and the third upright (3) together form a mast support. The second upright (2) is slidably connected inside the first upright (1). The second upright (2) and the third upright (3) are fixedly connected. The third upright (3) is highly integrated with a radar system, a communication system and an optoelectronic monitoring system. A sliding mechanism (4) is provided between the first upright (1) and the second upright (2). The sliding mechanism (4) includes a sliding cavity (401), a fixed sleeve (402), a first cylinder (403), a connecting block (404), and a first pulley (405). The sliding cavity (401) is opened inside the first upright (1). The fixed sleeve (402) is fixedly connected to the upper end of the first upright (1). The second upright (2) is slidably arranged in the sliding cavity (401). The first cylinder (403) is fixedly connected to the inner bottom of the sliding cavity (401). The connecting block (404) is fixedly connected to the lower end of the second upright (2). The first pulley (405) is rotatably connected to the connecting block (404). The first pulley (405) contacts the inner wall of the sliding cavity (401). The telescopic shaft of the first cylinder (403) is fixedly connected to the connecting block (404).
2. The high-speed aluminum alloy law enforcement boat mast support according to claim 1, characterized in that: A base plate (5) is provided below the first upright (1), and an mounting sleeve (6) is fixedly connected to the base plate (5). The first upright (1) is rotatably connected in the mounting sleeve (6). A first mounting block (7) is fixedly connected to one side of the mounting sleeve (6). A second cylinder (8) is provided on the first mounting block (7). The telescopic shaft of the second cylinder (8) is connected to the first upright (1). Both ends of the second cylinder (8) are hinged to the first mounting block (7) and the first upright (1).
3. The high-speed aluminum alloy law enforcement boat mast support according to claim 2, characterized in that: A connecting rope (9) is provided below the first upright (1), and a counterweight (10) is fixedly connected to the other end of the connecting rope (9). The counterweight (10) is located in the mounting sleeve (6).
4. The high-speed aluminum alloy law enforcement boat mast support according to claim 2, characterized in that: A reinforcing rod (11) is provided between the first upright (1) and the base plate (5). The reinforcing rod (11) is inclined and there are two reinforcing rods (11) arranged symmetrically. The two ends of the reinforcing rod (11) are respectively fixed to the base plate (5) and the first upright (1) by bolts.
5. A high-speed aluminum alloy law enforcement boat mast support according to claim 2, characterized in that: A second mounting block (12) is fixedly connected to the base plate (5). The second mounting block (12) is located on the side away from the first mounting block (7). A spring (13) is provided on the second mounting block (12). The other end of the spring (13) is connected to the first upright (1).
6. The high-speed aluminum alloy law enforcement boat mast support according to claim 1, characterized in that: A fixing block (14) is provided on the fixing sleeve (402), and a second pulley (15) is rotatably connected to the fixing block (14). The second pulley (15) contacts the outer wall of the second upright (2).
7. A high-speed aluminum alloy law enforcement boat mast support according to claim 2, characterized in that: The mounting sleeve (6) is provided with a controller (16), which is electrically connected to the first cylinder (403) and the second cylinder (8).
8. A high-speed aluminum alloy law enforcement boat mast support according to claim 2, characterized in that: Anchor bolts (17) are provided on the base plate (5), and the number of anchor bolts (17) is several and evenly distributed.
Citation Information
Patent Citations
Bendable ship mast
CN214524280U