Reversible mast device for ship and ship
By using a hinged mast body to the base and a hand-cranked gear drive in the marine tilting mast device, the problems of high cost and inconvenient maintenance of existing devices are solved, and low-cost and high-reliability mast operation is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-04-07
AI Technical Summary
Existing marine tilting mast devices are expensive to build and inconvenient to maintain, and are mainly driven by hydraulic cylinders or electric wire ropes.
The mast body is hinged to the mast base, and combined with an arc-shaped gear track and a hand-cranked gear, the mast can be lowered and reset by manual hand-cranking. The structure is simple, low-cost and easy to maintain.
It enables the mast to be quickly lowered or reset without relying on shipboard electricity or fuel, saving energy and improving reliability and ease of maintenance.
Smart Images
Figure CN224090378U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of marine engineering technology, and in particular to a ship-mounted tilting mast device, and a ship using the mast device. Background Technology
[0002] When ships pass under low bridges in waterways or when repairing equipment on their masts, they often need to lower the masts. After the ship has passed under the bridge or the repairs are completed, the masts are quickly raised and fixed in their original position. Currently, mainstream marine tilting mast systems are mainly driven by hydraulic cylinders or electric wire ropes. However, marine tilting mast systems using these two drive methods have relatively high construction costs and are more troublesome to maintain. Utility Model Content
[0003] To solve the above-mentioned technical problems, this utility model provides a marine tilting mast device and a ship with low construction cost and convenient maintenance.
[0004] The present invention adopts the following technical solution:
[0005] This utility model provides a shipboard tiltable mast device, including a mast body and a mast base. One bottom end of the mast body is hinged to one top end of the mast base, and the other bottom end of the mast body is detachably connected to the other top end of the mast base. An arc-shaped gear track is fixed on the mast body, and the gear track is concentric with the bottom hinge of the mast body. A freely rotatable hand-cranked gear is provided on the mast base, and the gear track meshes with the hand-cranked gear.
[0006] Preferably, a boss extends downward from one bottom end of the mast body, and a groove is recessed downward from one top end of the mast base, with the boss hinged to the mast base within the groove.
[0007] Preferably, two first eye plates are fixed at a distance from each other at the top end of the mast base, and a first pin is fixed between the two first eye plates. The bottom end of the mast body passes through the first pin and can rotate around the first pin.
[0008] Preferably, a through hole is provided on the other end of the bottom of the mast body, and two second eye plates are fixed at intervals on the other end of the top of the mast base. The second pin passes through both second eye plates and the through hole at the same time, and the second pin is threadedly connected to the two second eye plates by a nut.
[0009] Preferably, the two ends of the gear track are respectively provided with stop teeth, which can stop the hand-cranked gear.
[0010] Preferably, the hand-cranked gear includes a gear shaft and a crank handle. The gear shaft is rotatably mounted on the mast base. The gear track meshes with the gear shaft. The two ends of the gear shaft are respectively provided with recesses, and the crank handle is inserted into the recesses.
[0011] This utility model also provides a ship, including a hull and any of the above-mentioned marine tiltable mast device, wherein the bottom of the mast base is fixed to the deck of the hull.
[0012] Preferably, a signal light and radar are installed at the top of the mast body.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] The marine tilting mast device of this utility model is composed of a mast body and a mast base hinged together. It has a simple structure, low construction cost, and adopts manual hand-crank drive. After the detachable connection between the mast body and the mast base is disconnected, the mast body can be driven by manually controlling the hand-cranked gear to deflect relative to the hinge point along the gear track, so as to quickly tilt or reset the mast body. It is convenient for later maintenance.
[0015] Because the ship of this invention adopts the above-mentioned marine tilting mast device, the mast can be tilted or reset without relying on the ship's electric or fuel power devices, thus saving energy and having high reliability. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the usage state of the marine tilting mast device in this embodiment of the utility model.
[0017] Figure 2 This is a schematic diagram of the initial state of the marine tilting mast device in this embodiment of the present invention.
[0018] Figure 3 This is a schematic diagram of the tilting mast device of a ship in the tilting state in an embodiment of this utility model.
[0019] Figure 4 This is a top view of the mast base of the marine tilting mast device in this embodiment of the utility model.
[0020] The reference numerals in the attached figures are explained as follows:
[0021] 1. Mast body 401, gear shaft
[0022] 101. Boss; 402. Crank handle
[0023] 102, Through hole 5, First eye plate
[0024] 2. Mast base 6. First pin
[0025] 201, Groove 7, Second Eyeplate
[0026] 3. Gear track; 8. Second pin shaft
[0027] 301, stop gear 9, signal light
[0028] 4. Hand-cranked gear; 10. Radar Detailed Implementation
[0029] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. These embodiments are only used to illustrate this utility model and are not intended to limit it.
[0030] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0032] Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0033] See Figures 1 to 3 This embodiment provides a marine tiltable mast device, including a mast body 1 and a mast base 2. One bottom end of the mast body 1 is hinged to one top end of the mast base 2, and the other bottom end of the mast body 1 is detachably connected to the other top end of the mast base 2. An arc-shaped gear track 3 is fixed on the mast body 1, and the gear track 3 is concentric with the bottom hinge of the mast body 1. A freely rotatable hand-cranked gear 4 is provided on the mast base 2, and the gear track 3 meshes with the hand-cranked gear 4.
[0034] The marine tilting mast device of this embodiment is formed by hinged connection of mast body 1 and mast base 2. It has a simple structure, low construction cost, and adopts manual hand-crank drive. After the detachable connection between mast body 1 and mast base 2 is disconnected, the mast body 1 can be driven to deflect relative to the hinge point by manually controlling the hand-cranked gear 4, so as to quickly tilt or reset the mast body 1. It is convenient for later maintenance.
[0035] Preferably, see Figure 3 A boss 101 extends downward from one bottom end of the mast body 1, and a groove 201 is recessed downward from one top end of the mast base 2. The boss 101 is hinged to the mast base 2 within the groove 201. The matching arrangement of the boss 101 and the groove 201 enables the mast body 1 to be positioned on the mast base 2, preventing the hinge between the mast body 1 and the mast base 2 from shifting and causing the detachable connection between the mast body 1 and the mast base 2 to fail.
[0036] Preferably, see Figures 2 to 4 Two first eye plates 5 are fixed at a distance from each other at the top end of the mast base 2. A first pin 6 is fixed between the two first eye plates 5. The bottom end of the mast body 1 is threaded through the first pin 6 and can rotate around the first pin 6.
[0037] Preferably, see Figure 2 and Figure 3 A through hole 102 is provided on the other end of the bottom of the mast body 1. Two second eye plates 7 are fixed at intervals on the other end of the top of the mast base 2. The second pin 8 passes through both second eye plates 7 and the through hole 102, and the second pin 8 is threadedly connected to the two second eye plates 7 by nuts. When the mast body 1 is in the working state, the second pin 8 passes through both second eye plates 7 and the through hole 102, and the second pin 8 is threadedly connected to the two second eye plates 7 by nuts. When it is necessary to lower the mast body 1, the second pin 8 needs to be removed from the through hole 102 first, and then the gear rail 3 is rotated by the hand crank gear 4 to make the mast body 1 deflect relative to the hinge point and complete the lowering of the mast body 1.
[0038] Preferably, in this embodiment, the gear track 3, the first eye plate 5, and the second eye plate 7 are all fixed by welding.
[0039] Preferably, see Figure 2 and Figure 3 The gear track 3 has stop teeth 301 at both ends, which can stop the hand-cranked gear 4. When the hand-cranked gear 4 is manually controlled to lower the mast body 1 to a certain angle, the hand-cranked gear 4 contacts the stop teeth 301 at one end of the gear track 3. At this time, the hand-cranked gear 4 can no longer rotate to lower the mast body 1, thus preventing the hand-cranked gear 4 from disengaging from the gear track 3 and ensuring safety.
[0040] Preferably, see Figure 4 The hand-cranked gear 4 includes a gear shaft 401 and a crank handle 402. The gear shaft 401 is rotatably mounted on the mast base 2. The gear track 3 meshes with the gear shaft 401. The two ends of the gear shaft 401 are respectively provided with recesses, and the crank handle 402 is inserted into the recesses.
[0041] During the lowering phase of the mast body 1, the crank handle 402 is inserted into the recess of the gear shaft 401, and the detachable connection between the mast body 1 and the mast base 2 is released. Then, the crank handle 402 can be manually turned clockwise to rotate the gear shaft 401, which in turn drives the gear track 3 on the mast body 1 to rotate, thereby causing the mast body 1 to rotate around the hinge point and slowly lower itself. During the resetting phase of the mast body 1, the crank handle 402 can be turned counterclockwise to raise the mast body 1. After the mast body 1 reaches the initial position, the detachable connection between the mast body 1 and the mast base 2 is re-established, and the crank handle 402 is removed.
[0042] It should be noted that before actual use, the radius and position of the gear track 3 and the radius and position of the gear shaft 401 should be fully considered according to the weight and torque of the mast body 1, so as to raise and lower the mast body 1 as effortlessly and time-saving as possible.
[0043] This embodiment also provides a vessel, including a hull and the aforementioned marine tilting mast device, with the bottom of the mast base 2 fixed to the deck of the hull. Because this vessel employs the aforementioned marine tilting mast device, the mast can be lowered or reset without relying on onboard electricity or fuel power, saving energy and offering high reliability.
[0044] Preferably, in this embodiment, the mast base 2 is welded to the deck of the hull.
[0045] Preferably, see Figure 1 The top of the mast body 1 is equipped with a signal light 9 and a radar 10.
[0046] Since the marine tilting mast device and the ship of this utility model only use the second pin 8 and the stop tooth 301 on the gear rail 3 to achieve the initial position locking and the tilting position limit, the load-bearing effect is generally poor. Therefore, for safety reasons, it is mainly used on light masts.
[0047] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.
Claims
1. A marine tilting mast device, characterized in that, The system includes a mast body (1) and a mast base (2). One bottom end of the mast body (1) is hinged to one top end of the mast base (2), and the other bottom end of the mast body (1) is detachably connected to the other top end of the mast base (2). A circular arc-shaped gear track (3) is fixed on the mast body (1), and the gear track (3) is concentric with the bottom hinge of the mast body (1). A freely rotatable hand-cranked gear (4) is provided on the mast base (2), and the gear track (3) meshes with the hand-cranked gear (4).
2. The marine tilting mast device according to claim 1, characterized in that, A boss (101) extends downward from one end of the bottom of the mast body (1), and a groove (201) is recessed downward from one end of the top of the mast base (2). The boss (101) is hinged to the mast base (2) within the groove (201).
3. The marine tilting mast device according to claim 1, characterized in that, Two first eye plates (5) are fixed at a distance from the top end of the mast base (2), and a first pin (6) is fixed between the two first eye plates (5). The bottom end of the mast body (1) is threaded through the first pin (6) and can rotate around the first pin (6).
4. The marine tilting mast device according to claim 1, characterized in that, A through hole (102) is provided on the other end of the bottom of the mast body (1), and two second eye plates (7) are fixed at a distance from the top of the mast base (2). The second pin (8) passes through both second eye plates (7) and the through hole (102) at the same time, and the second pin (8) is threadedly connected to the two second eye plates (7) by a nut.
5. The marine tilting mast device according to claim 1, characterized in that, The gear track (3) is provided with stop teeth (301) at both ends, and the stop teeth (301) can stop the hand-cranked gear (4).
6. The marine tilting mast device according to claim 1, characterized in that, The hand-cranked gear (4) includes a gear shaft (401) and a crank handle (402). The gear shaft (401) is rotatably mounted on the mast base (2). The gear track (3) meshes with the gear shaft (401). The gear shaft (401) has recesses at both ends along its axial direction. The crank handle (402) is inserted into the recesses.
7. A ship, characterized in that, Includes a hull and a marine tiltable mast assembly as described in any one of claims 1-6, wherein the bottom of the mast base (2) is fixed to the deck of the hull.
8. The ship according to claim 7, characterized in that, The top of the mast body (1) is equipped with a signal light (9) and a radar (10).