A handwheel-controlled, collapsible heavy mast device

Abstract

This utility model relates to the field of marine engineering technology and discloses a handwheel-controlled, tiltable heavy-duty mast device, including a deck. A shelf is fixedly connected to the top right side of the deck, and a support mechanism is provided on the top of the shelf. A reinforcing mechanism is provided on the inner wall of the shelf. A rotating winch is fixedly connected to the top left side of the deck, and a storage mechanism is provided on the top of the rotating winch. A base is fixedly connected to the top rear side of the deck, and a mast mechanism is provided on the top of the base. The support mechanism includes an arc-shaped gradual slope, the bottom of which is fixedly connected to the top of the shelf. In this utility model, the mast is guided to tilt by the arc-shaped gradual slope and elastic pads, and then a slider is used to clamp the mast with a limiting block. Bolts and threaded grooves can fix the position of the limiting block. The safe support and adjustment of the mast are achieved solely by mechanical structures, reducing maintenance costs and extending the life of the device.

Description

Technical Field

[0001] This utility model relates to the field of marine engineering technology, and in particular to a handwheel-controlled, collapsible heavy mast device. Background Technology

[0002] A mast is a vertical or inclined column structure that serves as a tall column on a ship for hanging flags, installing antennas, and supporting observation platforms. It stands vertically to the keel or midships. With the development of technology, traditional heavy-duty super-tall masts have problems such as non-adjustable height, inability to avoid obstacles, and difficult maintenance when ships pass through specific height-restricted areas. To address these issues, a handwheel-controlled, collapsible heavy-duty mast device has been developed.

[0003] The handwheel-controlled collapsible heavy-duty mast device is a specialized device designed for the flexible adjustment needs of ship masts in special scenarios. It combines structural strength with ease of operation, allowing operators to precisely control the collapsing angle and repositioning of the mast simply by turning the handwheel. The entire process is smooth and controllable, without relying on complex electric drives.

[0004] Although handwheel-controlled tilting heavy mast devices are convenient to operate—operators only need to pull out the locating pin and operate the handwheel to tilt the mast—these devices suffer from numerous structural problems, complex operation, personnel hazards, and poor mast stability. Current solutions rely on a hand-cranked winch and the mast's locating pin to directly control the mast's rotation, causing it to tilt onto the support frame. Locking the handwheel completes the tilting. However, after the mast tilts, it relies on the support frame for support. The structural strength and stability of the support frame directly affect the safety of the tilting mast. If the support frame is too small, the material is not strong enough, or the installation is not secure, it may deform or break under the weight of the heavy mast, causing the mast to tip over, resulting in equipment damage or a safety accident. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a handwheel-controlled tilting heavy mast device, which aims to improve the problem that the design size of the shelf in the prior art is too small, which will cause the mast to tip over when bearing the weight of the heavy mast.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a handwheel-controlled, collapsible heavy mast device, comprising a deck, a shelf fixedly connected to the top right side of the deck, a shelf-mounting mechanism provided at the top of the shelf, a reinforcing mechanism provided on the inner wall of the shelf, a rotating winch fixedly connected to the top left side of the deck, a storage mechanism provided at the top of the rotating winch, a base fixedly connected to the top rear side of the deck, and a mast mechanism provided at the top of the base;

[0007] The shelf mechanism includes an arc-shaped gradient slope, the bottom of which is fixedly connected to the top of the shelf. An elastic wear-resistant pad is fixedly connected to the top of the arc-shaped gradient slope. A groove is formed on the top of the arc-shaped gradient slope. Two sliders are slidably connected to the inner wall of the groove. Limit blocks are fixedly connected to the top of each of the two sliders. Fixing plates are fixedly connected to the front and rear sides of each of the two limit blocks. Drainage holes are formed on the outer wall of the arc-shaped gradient slope. A fixing component is provided on the top of the arc-shaped gradient slope.

[0008] As a further description of the above technical solution:

[0009] The reinforcing mechanism includes two fixing blocks. The outer walls of the two fixing blocks are fixedly connected to the left and right sides of the inner wall of the shelf. A rotating column is rotatably connected to an adjacent side of the two fixing blocks. A universal joint is fixedly connected to an adjacent side of the two rotating columns. A buckle is fixedly connected to an adjacent side of the two universal joints. A placement block is fixedly connected to the bottom of the inner wall of the shelf. Two slots are opened on the top of the placement block. A folding assembly is provided on the inner wall of the shelf.

[0010] As a further description of the above technical solution:

[0011] The storage mechanism includes a storage box, the bottom of which is fixedly connected to the top of the rotating frame. A storage shaft is rotatably connected to the middle of the outer wall of the storage box, and a hand crank is rotatably connected to the rear end of the outer wall of the storage shaft.

[0012] As a further description of the above technical solution:

[0013] The mast mechanism includes a mast body plate, the outer wall of which is rotatably connected to the top of the inner wall of the base, a weight-adding block is fixedly connected to the bottom of the mast body plate, and a rotating shaft is rotatably connected to the bottom of the outer wall of the mast body plate.

[0014] As a further description of the above technical solution:

[0015] The fixing component includes multiple bolts, the outer walls of which are threaded to the top of the arc-shaped gradient slope, and the top of the arc-shaped gradient slope has multiple threaded grooves.

[0016] As a further description of the above technical solution:

[0017] The folding assembly includes two magnetic blocks, with the opposite sides of the two magnetic blocks fixedly connected to the left and right sides of the inner wall of the shelf, and iron patches fixedly connected to the top of the two rotating columns.

[0018] As a further description of the above technical solution:

[0019] A triangular support frame is fixedly connected to the middle of the inner wall of the shelf, and connecting blocks are fixedly connected to the left and right sides of the outer wall of the shelf.

[0020] As a further description of the above technical solution:

[0021] Light brackets are fixedly connected to the left and right sides of the outer wall of the main mast plate. Light holders are fixedly connected to the top of the two light brackets. Signal lights are fixedly connected to the top of the two light holders.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, when the mast falls, it is guided to contact the shelf by an arc-shaped gradual slope and buffered by elastic pads. Then, the position of the slider is adjusted so that the limiting block clamps the mast. The position of the limiting block is fixed by bolts and threaded grooves. The water accumulated in the groove can be discharged from the drain hole. Relying on the mechanical structure, rigid impact is avoided and wear is reduced. It can also be adapted to the fixing of different masts and prevent shaking. It achieves safe and stable support and flexible adjustment, greatly reduces maintenance costs and significantly extends the service life of the device.

[0024] 2. In this utility model, before the mast falls, the rotating column is rotated, and the orientation of the buckle is adjusted by the universal joint to align with the slot, and the buckle engages with the slot to form a triangular support structure. After the mast is reset, the buckle is released and the rotating column is rotated upward. The rotating column is fixed and stored by the magnetic attraction structure. The stability and convenience of the shelf are enhanced by the pure mechanical structure, and the adaptability of the shelf is improved. Attached Figure Description

[0025] Figure 1 This is a perspective view of a handwheel-controlled, collapsible heavy-duty mast device proposed in this utility model;

[0026] Figure 2 This is a front view of a handwheel-controlled, collapsible heavy-duty mast device proposed in this utility model;

[0027] Figure 3 A cross-sectional view of the arc-shaped gradient slope of a handwheel-controlled, collapsible heavy-duty mast device proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the rotating winch of a handwheel-controlled, collapsible heavy mast device proposed in this utility model;

[0029] Figure 5 This is a schematic diagram of the base of a handwheel-controlled, tiltable heavy-duty mast device proposed in this utility model;

[0030] Figure 6This is a schematic diagram of the bolt structure of a handwheel-controlled, tiltable heavy mast device proposed in this utility model.

[0031] Legend:

[0032] 1. Deck; 2. Shelf; 3. Shelving mechanism; 301. Curved gradient slope; 302. Elastic wear-resistant pad; 303. Slide groove; 304. Sliding block; 305. Limiting block; 306. Fixing plate; 307. Drain hole; 308. Fixing assembly; 3081. Bolt; 3082. Threaded groove; 4. Rotating winch; 5. Reinforcing mechanism; 501. Fixing block; 502. Rotating column; 503. Universal joint; 504. Buckle; 5 5. Mounting block; 506. Card slot; 507. Folding assembly; 5071. Magnetic block; 5072. Iron patch; 6. Storage mechanism; 601. Storage box; 602. Storage shaft; 603. Hand crank; 7. Base; 8. Mast mechanism; 801. Mast main plate; 802. Weighting block; 803. Rotating shaft; 804. Lamp bracket; 805. Lamp holder; 806. Signal light; 9. Triangular support frame; 10. Connecting block. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figure 1 , Figure 3 and Figure 6 An embodiment of this utility model provides: a handwheel-controlled, tiltable heavy mast device, including a deck 1, a shelf 2 fixedly connected to the top right side of the deck 1, the shelf 2 being used to support the mast, a support mechanism 3 being provided at the top of the shelf 2, the support mechanism 3 being used to limit the position of the mast on the shelf 2, a reinforcing mechanism 5 being provided on the inner wall of the shelf 2, the reinforcing mechanism 5 being used to enhance the structural strength of the shelf 2, a rotating winch 4 fixedly connected to the top left side of the deck 1, the rotating winch 4 being used to house a storage mechanism 6, the storage mechanism 6 being provided at the top of the rotating winch 4, the tilting degree of the mast being directly controlled by the storage mechanism 6, a base 7 fixedly connected to the top rear side of the deck 1, a mast mechanism 8 being provided at the top of the base 7, the mast mechanism 8 serving as the main body of the heavy mast;

[0035] The support mechanism 3 includes an arc-shaped gradient slope 301, which guides the mast to contact the shelf 2 with a gentle trajectory. The bottom of the arc-shaped gradient slope 301 is fixedly connected to the top of the shelf 2, and an elastic wear-resistant pad 302 is fixedly connected to the top of the arc-shaped gradient slope 301. The elastic wear-resistant pad 302 is used for cushioning and shock absorption and to protect the arc-shaped gradient slope 301. A groove 303 is provided on the top of the arc-shaped gradient slope 301, which provides movement space for the limiting block 305. Two sliding blocks are slidably connected to the inner wall of the groove 303. Block 304, the top of both sliders 304 are fixedly connected to limit blocks 305, the position of the mast is limited by the limit blocks 305 to prevent swaying, the front and rear sides of the two limit blocks 305 are fixedly connected to fixing plates 306, the fixing plates 306 fix the limit blocks 305, the outer wall of the arc-shaped gradient slope 301 is provided with drainage holes 307, the drainage holes 307 are used to drain the water accumulated in the chute 303, the top of the arc-shaped gradient slope 301 is provided with a fixing component 308, the fixing component 308 is used to fix the limit blocks 305;

[0036] The fixing component 308 includes multiple bolts 3081, the outer walls of which are threaded to the top of the arc-shaped gradient slope 301. Multiple threaded grooves 3082 are provided on the top of the arc-shaped gradient slope 301. The position of the limiting block 305 is fixed by the cooperation between the bolts 3081 and the threaded grooves 3082.

[0037] Specifically, when the mast begins to fall, the curved gradient slope 301 guides the mast to contact the shelf 2 along a gentle trajectory. The elastic wear-resistant pad 302 at the top of the curved gradient slope 301 can buffer the impact force and reduce structural damage. According to the diameter of the mast, the slider 304 is installed along the slide groove 303. Pushing the slider 304 will move the limit blocks 305 on both sides to the position of fitting the mast. At this time, the limit blocks 305 clamp the mast from the side to prevent the mast from swaying. Then, the bolt 3081 is passed through the fixing pieces 306 on the front and rear sides of the limit block 305 and aligned with the curved gradient slope 301. Tightening the threaded groove 3082 at the top of the slope 301 completes the fixation of the limiting block 305. When encountering rain, the accumulated water is discharged through the drainage hole 307 on the outer wall of the arc-shaped gradient slope 301, preventing water accumulation in the slide 303 and corrosion of the parts. When the mast needs to be reset, first unscrew the bolt 3081, push the slider 304 to move the limiting block 305 to both sides, release the constraint on the mast, and then operate the relevant mechanism to raise the mast. The whole process relies on the mechanical structure to achieve stable limiting and flexible adjustment. The operation is simple and reliable, which greatly improves the service life of the device.

[0038] Reference Figure 1 , Figure 2 and Figure 3The reinforcing mechanism 5 includes two fixing blocks 501. The outer walls of the two fixing blocks 501 are fixedly connected to the left and right sides of the inner wall of the shelf 2. The adjacent sides of the two fixing blocks 501 are rotatably connected to rotating columns 502. By fixing the bottom of the rotating columns 502 to the placement block 505, the support strength of the shelf 2 is enhanced. The adjacent sides of the two rotating columns 502 are fixedly connected to universal joints 503. The universal joints 503 can easily adjust the orientation of the buckles 504. The adjacent sides of the two universal joints 503 are fixedly connected to buckles 504. The bottom of the inner wall of the shelf 2 is fixedly connected to the placement block 505. The top of the placement block 505 has two slots 506. The buckles 504 engage with the slots 506 to fix the position of the rotating columns 502. The inner wall of the shelf 2 is provided with a folding component 507. The folding component 507 is used for storage after operation without taking up extra space.

[0039] The folding assembly 507 includes two magnetic blocks 5071. The two magnetic blocks 5071 are fixedly connected to the left and right sides of the inner wall of the shelf 2 on opposite sides. The tops of the two rotating columns 502 are fixedly connected to iron patches 5072. The rotating columns 502 are stored by magnetic attraction between the magnetic blocks 5071 and the iron patches 5072.

[0040] Specifically, before the mast begins to fall, first rotate the rotating column 502 on the left and right fixing blocks 501 on the inner wall of the shelf 2. Then, flexibly adjust the orientation of the buckle 504 via the universal joint 503, aligning the buckle 504 with the slot 506 on the top of the bottom mounting block 505 on the inner wall of the shelf 2. Press the buckle 504 into the corresponding slot 506, thus fixing the rotating column 502 and forming a stable triangular support structure with the shelf 2. This significantly improves the load-bearing capacity of the shelf 2, preventing the mast from collapsing. After positioning, when it is necessary to store the reinforcing mechanism 5, press the buckle 504 to disengage it from the slot 506, and rotate the rotating column 502 upwards until the iron patch 5072 at the top of the rotating column 502 is tightly attracted to the magnetic block 5071 on the inner wall of the shelf 2. The magnetic force fixes the storage position of the rotating column 502. The whole process, through mechanical rotation and magnetic attraction, not only strengthens the support of the shelf 2, but also achieves storage of the rotating column 502 without taking up extra space. The operation is simple and stable and reliable.

[0041] Reference Figure 2 , Figure 4 and Figure 5The storage mechanism 6 includes a storage box 601 for storing the ropes controlling the rotation of the mast. The bottom end of the storage box 601 is fixedly connected to the top of the rotating winch 4. A storage shaft 602 is rotatably connected to the middle of the outer wall of the storage box 601, which controls the winding and unwinding of the ropes. A hand crank 603 is rotatably connected to the rear end of the outer wall of the storage shaft 602, which facilitates the rotation of the storage shaft 602. The mast mechanism 8 includes a mast body plate 801, which serves as the main body of the mast. The outer wall of the mast body plate 801 is rotatably connected to the top of the inner wall of the base 7. A weight block 802 is fixedly connected to the bottom of the mast body plate 801, which is used to adjust the center of gravity of the mast. A rotating shaft 803 is rotatably connected to the bottom of the outer wall of the plate 801. The rotating shaft 803 passes through the mast body plate 801 and is rotatably connected to the inner wall of the base 7, which facilitates the rotation of the mast body plate 801. A triangular support frame 9 is fixedly connected to the middle of the inner wall of the shelf 2. The triangular support frame 9 is used to increase the strength of the shelf 2 and reduce its weight. Connecting blocks 10 are fixedly connected to the left and right sides of the outer wall of the shelf 2. The connecting blocks 10 can enhance the connection between the shelf 2 and the deck 1. Light brackets 804 are fixedly connected to the left and right sides of the outer wall of the mast body plate 801. The light brackets 804 are used to support the signal lights 806. The tops of the two light brackets 804 are fixedly connected to the lamp holders 805. The tops of the two lamp holders 805 are fixedly connected to the signal lights 806.

[0042] Specifically, when adjusting the mast's position, first rotate the hand crank 603 on the outer wall of the storage box 601, causing the storage shaft 602 to rotate and release the internal rope. The rope pulls the mast body plate 801, causing the mast body plate 801 to rotate around the rotation shaft 803 on the inner wall of the base 7. Meanwhile, the weight block 802 at the bottom of the mast body plate 801 adjusts the center of gravity to help the mast fall smoothly. During the mast's position adjustment process, the triangular support frame 9 on the inner wall of the shelf 2 can enhance the strength of the shelf 2, and the connecting block on the outer wall of the shelf 2... 10. The connection with deck 1 is strengthened to ensure the stable support of rack 2. After the mast is in place, the hand crank 603 is rotated in the opposite direction, and the rope is retrieved through storage shaft 602 to complete the fixation. The signal light 806 on the light bracket 804 moves synchronously with the mast to maintain the signal function. When resetting the mast, the rope is loosened to allow the mast to automatically return to its position with the help of the center of gravity, and then the rope is tightened to fix it. The entire process relies solely on mechanical transmission to achieve the smooth raising and lowering of the mast, which strengthens the structural strength of the device and enhances the stability of its function.

[0043] Working principle: The curved surface of the arc-shaped gradual slope 301 guides the mast to make smooth contact with the shelf 2. The slope angle disperses the pressure generated by the mast's own weight, avoiding rigid impact. The elastic wear-resistant pad 302 at the top of the arc-shaped gradual slope 301 absorbs the collision energy through the elasticity of the material, further buffering and reducing shock absorption and structural wear. The slide groove 303 and the slider 304 form a sliding adjustment structure. The slider 304 drives the limit block 305 to move along the slide groove 303, flexibly adjusting the limit distance according to the mast diameter to achieve adjustment for masts of different specifications. The adapter allows the limiting block 305 to clamp the mast from both sides. Combined with the threaded connection between the bolt 3081 and the threaded groove 3082, the limiting block 305 is locked by the fixing plate 306, forming a rigid constraint to prevent the mast from shifting due to external shaking. The drainage hole 307 drains accumulated water in time through the channel connected to the slide groove 303, avoiding corrosion of components and affecting sliding flexibility. The whole relies on a purely mechanical structure for guidance, buffering and limiting, to achieve stable support and flexible adjustment of the mast in the fallen state, ensuring operational safety and extending the service life of the device.

[0044] Furthermore, before the mast falls, the fixing block 501 serves as a pivot point, causing the rotating column 502 to rotate. The universal joint 503, through its multi-angle rotation characteristics, adjusts the orientation of the buckle 504 to align with the slot 506 of the mounting block 505. The mechanical engagement of the buckle 504 and the slot 506 fixes the position of the rotating column 502, forming a triangular support structure between the rotating column 502 and the shelf 2. Utilizing the principle of triangular stability, the pressure of the mast is distributed to the entire shelf 2, significantly improving its load-bearing strength. After the mast is reset, the engagement of the buckle 504 and the slot 506 is released, and the rotating column 502 is rotated upwards. With the magnetic attraction of the magnetic block 5071 and the iron patch 5072, the rotating column 502 is fixed to the inner wall of the shelf 2, achieving storage of the rotating column 502 without additional space occupation. The entire structure is supported and reinforced through a purely mechanical structure and magnetically positioned, enhancing structural stability and ease of storage.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A handwheel-controlled, collapsible heavy mast device, comprising a deck (1), characterized in that: A shelf (2) is fixedly connected to the top right side of the deck (1). A shelf (2) is provided with a placement mechanism (3) at the top of the shelf (2). A reinforcing mechanism (5) is provided on the inner wall of the shelf (2). A rotating winch (4) is fixedly connected to the top left side of the deck (1). A storage mechanism (6) is provided on the top of the rotating winch (4). A base (7) is fixedly connected to the top rear side of the deck (1). A mast mechanism (8) is provided on the top of the base (7). The shelving mechanism (3) includes an arc-shaped gradient slope (301), the bottom of which is fixedly connected to the top of the shelf (2). An elastic wear-resistant pad (302) is fixedly connected to the top of the arc-shaped gradient slope (301). A groove (303) is provided on the top of the arc-shaped gradient slope (301). Two sliders (304) are slidably connected to the inner wall of the groove (303). Limiting blocks (305) are fixedly connected to the top of each of the two sliders (304). Fixing plates (306) are fixedly connected to the front and rear sides of each of the two limiting blocks (305). A drainage hole (307) is provided on the outer wall of the arc-shaped gradient slope (301). A fixing component (308) is provided on the top of the arc-shaped gradient slope (301).

2. The handwheel-controlled, collapsible heavy-duty mast device according to claim 1, characterized in that: The reinforcing mechanism (5) includes two fixing blocks (501). The outer walls of the two fixing blocks (501) are fixedly connected to the left and right sides of the inner wall of the shelf (2). A rotating column (502) is rotatably connected to the adjacent side of the two fixing blocks (501). A universal joint (503) is fixedly connected to the adjacent side of the two rotating columns (502). A buckle (504) is fixedly connected to the adjacent side of the two universal joints (503). A placement block (505) is fixedly connected to the bottom of the inner wall of the shelf (2). Two slots (506) are opened on the top of the placement block (505). A folding assembly (507) is provided on the inner wall of the shelf (2).

3. The handwheel-controlled, collapsible heavy-duty mast device according to claim 1, characterized in that: The storage mechanism (6) includes a storage box (601), the bottom end of which is fixedly connected to the top of the rotating frame (4), a storage shaft (602) is rotatably connected to the middle of the outer wall of the storage box (601), and a hand crank (603) is rotatably connected to the rear end of the outer wall of the storage shaft (602).

4. The handwheel-controlled, collapsible heavy-duty mast device according to claim 1, characterized in that: The mast mechanism (8) includes a mast body plate (801), the outer wall of which is rotatably connected to the top of the inner wall of the base (7), a weight block (802) is fixedly connected to the bottom of the mast body plate (801), and a rotating shaft (803) is rotatably connected to the bottom of the outer wall of the mast body plate (801).

5. A handwheel-controlled, collapsible heavy-duty mast device according to claim 1, characterized in that: The fixing component (308) includes a plurality of bolts (3081), the outer walls of which are threaded to the top of the arc-shaped gradient slope (301), and the top of the arc-shaped gradient slope (301) is provided with a plurality of threaded grooves (3082).

6. A handwheel-controlled, collapsible heavy-duty mast device according to claim 2, characterized in that: The folding assembly (507) includes two magnetic blocks (5071), with the two magnetic blocks (5071) fixedly connected to the left and right sides of the inner wall of the shelf (2) on opposite sides, and iron patches (5072) fixedly connected to the top of the two rotating columns (502).

7. A handwheel-controlled, collapsible heavy-duty mast device according to claim 1, characterized in that: A triangular support frame (9) is fixedly connected to the middle of the inner wall of the shelf (2), and connecting blocks (10) are fixedly connected to the left and right sides of the outer wall of the shelf (2).

8. A handwheel-controlled, collapsible heavy-duty mast device according to claim 4, characterized in that: The mast body plate (801) has lamp brackets (804) fixedly connected to the left and right sides of its outer wall. The top of each of the two lamp brackets (804) is fixedly connected to a lamp holder (805), and the top of each of the two lamp holders (805) is fixedly connected to a signal light (806).

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