Collapsible stern tube boot
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-02
- Publication Date
- 2026-08-11
AI Technical Summary
但是现有的防护罩安装时连接部件裸露在外，连接部件长时间的在水里浸泡会导致生锈，促使对防护罩进行维护和保养的难度加大
[0011] The retaining ring is installed on the hull using bolts. Then, the mounting ring at the end of the protective cover body is inserted into the limiting sleeve on the retaining ring. The snap-fit block on the mounting ring is pressed against the first elastic element by the inner wall of the limiting sleeve, so that the snap-fit block is fully embedded in the mounting groove. When the snap-fit block aligns with the groove, the first elastic element pushes the snap-fit block into the groove. At the same time, the second elastic element pushes the top ring, so that the protective cover has a pulling force on the snap-fit block and a sliding force along the arc-shaped lead-out surface toward the groove. When it is necessary to disassemble the protective cover, the snap-fit block is rotated along the arc-shaped lead-out surface so that the snap-fit block aligns with the inner wall of the limiting sleeve. Then, the protective cover can be pulled out for maintenance.
Smart Images
Figure CN224617953U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ship stern tube technology, and more specifically, to a detachable ship stern tube protective cover. Background Technology
[0002] The stern tube is a component of a ship's shafting system, fixed at the stern of the hull, through which the stern shaft passes and is equipped with sealing and support devices. It typically consists of a protective cover, mounting rings, gaskets, tightening rings, and locking sleeves. However, existing protective covers expose the connecting parts during installation, and prolonged immersion in water can cause these parts to rust, increasing the difficulty of maintaining and servicing the protective cover.
[0003] Therefore, a new solution is needed to address this problem. Utility Model Content
[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a detachable ship stern tube protective cover. The protective cover body is snapped onto the limiting sleeve of the fixing ring, so that the sealing ring on the protective cover body seals the snap-fit block inside the protective cover body and the limiting sleeve, preventing the snap-fit parts of the protective cover body and the limiting sleeve from rusting when immersed in water, and making the disassembly, maintenance and repair of the protective cover body more convenient.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a detachable ship stern tube protective cover, including a fixing ring, a limiting sleeve provided on the fixing ring, a protective cover body being snapped into the inner wall of the limiting sleeve, an installation ring being provided at the end of the protective cover body that fits with the limiting sleeve, a snap-fit block being provided at the end of the installation ring that slides radially thereon, a slot corresponding to the snap-fit block being provided on the inner wall of the fixing ring, and a sealing ring being provided near the snap-fit block on the installation ring that fits with the limiting ring.
[0006] Preferably, the mounting ring has a mounting groove at its end, a limiting rod is provided in the mounting groove and arranged radially along the mounting ring, the snap-fit block has a limiting hole corresponding to the limiting rod, the snap-fit block is slidably disposed in the mounting groove, and a first elastic element is provided on the limiting rod, the first elastic element having elastic potential energy to push the snap-fit block closer to the limiting sleeve.
[0007] Preferably, one side of the slot is provided with an arc-shaped lead-out surface that connects to the inner wall of the limiting sleeve. The arc-shaped lead-out surface is spirally arranged away from the limiting sleeve, and the side wall of the snap-fit block is provided with a rounded corner corresponding to the arc-shaped lead-out surface.
[0008] Preferably, the end of the snap-fit block away from the protective cover body is provided with an inclined smooth surface corresponding to the limiting sleeve.
[0009] Preferably, the end of the limiting sleeve is provided with a top ring, and the top ring has a plurality of push rods arranged in a ring array facing the limiting ring. The limiting ring has a plurality of slots arranged in a ring array corresponding to the plurality of push rods. A second elastic element is sleeved on the push rod, and the second elastic element has elastic potential energy to push the top ring away from the limiting sleeve.
[0010] This utility model has the following beneficial effects:
[0011] The retaining ring is installed on the hull using bolts. Then, the mounting ring at the end of the protective cover body is inserted into the limiting sleeve on the retaining ring. The snap-fit block on the mounting ring is pressed against the first elastic element by the inner wall of the limiting sleeve, so that the snap-fit block is fully embedded in the mounting groove. When the snap-fit block aligns with the groove, the first elastic element pushes the snap-fit block into the groove. At the same time, the second elastic element pushes the top ring, so that the protective cover has a pulling force on the snap-fit block and a sliding force along the arc-shaped lead-out surface toward the groove. When it is necessary to disassemble the protective cover, the snap-fit block is rotated along the arc-shaped lead-out surface so that the snap-fit block aligns with the inner wall of the limiting sleeve. Then, the protective cover can be pulled out for maintenance. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 This is a cross-sectional view of the present invention;
[0014] Figure 3 This is an exploded view of the present invention;
[0015] Figure 4 This is a bottom view of the present invention.
[0016] In the diagram: 1. Fixing ring; 2. Limiting sleeve; 3. Protective cover body; 4. Mounting ring; 5. Snap-fit block; 6. Snap-fit groove; 7. Sealing ring; 8. Mounting groove; 9. Limiting rod; 10. First elastic element; 11. Arc-shaped lead-out surface; 12. Rounded corner; 13. Top ring; 14. Top rod; 15. Slot hole; 16. Second elastic element. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0018] A detachable stern tube shield for ships, such as Figures 1 to 4As shown, it includes a fixing ring 1, a limiting sleeve 2 is provided on the fixing ring 1, a protective cover body 3 is snapped into the inner wall of the limiting sleeve 2, an installation ring 4 is provided at the end of the protective cover body 3 that fits with the limiting sleeve 2, a snap-fit block 5 is provided at the end of the installation ring 4 that slides radially therein, a slot 6 corresponding to the snap-fit block 5 is provided on the inner wall of the fixing ring 1, and a sealing ring 7 that fits with the limiting ring is provided near the snap-fit block 5 on the installation ring 4.
[0019] In the above embodiment, the fixing ring 1 is installed on the hull by bolts, and then the protective cover body 3 is snapped onto the limiting sleeve 2 of the fixing ring 1, so that the sealing ring 7 on the protective cover body 3 seals the snap-fit block 5 inside the protective cover body 3 and the limiting sleeve 2, preventing the snap-fit parts of the protective cover body 3 and the limiting sleeve 2 from rusting when immersed in water.
[0020] refer to Figure 3 and Figure 4 As shown: The mounting ring 4 has a mounting groove 8 at its end. A limiting rod 9 is integrally formed in the mounting groove 8 and is arranged radially along the mounting ring 4. The snap-fit block 5 has a limiting hole corresponding to the limiting rod 9. The snap-fit block 5 is slidably arranged in the mounting groove 8. A first elastic element 10 is sleeved on the limiting rod 9. The first elastic element 10 has elastic potential energy to push the snap-fit block 5 closer to the limiting sleeve 2.
[0021] One side of the slot 6 has an integrally formed arc-shaped lead-out surface 11 that connects to the inner wall of the limiting sleeve 2. The arc-shaped lead-out surface 11 is spirally arranged away from the limiting sleeve 2. The side wall of the snap-fit block 5 has a rounded corner 12 corresponding to the arc-shaped lead-out surface 11. The end of the snap-fit block 5 away from the protective cover body 3 has an integrally formed inclined smooth surface corresponding to the limiting sleeve 2.
[0022] In the above embodiment, the first elastic element 10 pushes the snap-fit block 5 toward the side wall of the limiting sleeve 2, so that the snap-fit block 5 can be inserted into the slot 6. At the same time, when it is necessary to disassemble the protective cover body 3, the snap-fit block 5 is rotated along the arc-shaped lead-out surface 11 by rotating the protective cover, so that the snap-fit block 5 corresponds to the inner wall of the limiting sleeve 2, and then the protective cover is pulled out for maintenance.
[0023] refer to Figure 3 and Figure 4 As shown: The end of the limiting sleeve 2 is provided with a top ring 13, and the top ring 13 has a plurality of push rods 14 arranged in a ring array facing the limiting ring. The limiting ring has a plurality of slots 15 arranged in a ring array corresponding to the plurality of push rods 14. A second elastic element 16 is sleeved on the push rods 14, and the second elastic element 16 has elastic potential energy to push the top ring 13 away from the limiting sleeve 2.
[0024] In the above embodiment, by providing a top ring 13 at the end of the limiting sleeve 2 to push the protective cover body 3 away from the limiting sleeve 2, the protective cover body 3 is pushed so that the snap block 5 corresponds to the snap groove 6. Since the arc-shaped lead-out surface 11 is spirally set away from the limiting sleeve 2, the protective cover body 3 is not disassembled by future rotation with a small force.
[0025] Working principle:
[0026] The fixing ring 1 is installed on the hull by bolts. Then, the mounting ring 4 at the end of the protective cover body 3 is inserted into the limiting sleeve 2 on the fixing ring 1. The snap-fit block 5 on the mounting ring 4 is pressed by the inner wall of the limiting sleeve 2 against the first elastic element 10, so that the snap-fit block 5 is fully embedded in the mounting groove 8. When the snap-fit block 5 corresponds to the groove 6, the first elastic element 10 pushes the snap-fit block 5 into the groove 6. At the same time, the second elastic element 16 pushes the top ring 13, so that the protective cover has a pulling force on the snap-fit block 5 and slides along the arc-shaped lead-out surface 11 toward the groove 6. When it is necessary to disassemble the protective cover, the snap-fit block 5 is rotated along the arc-shaped lead-out surface 11 to make the snap-fit block 5 correspond to the inner wall of the limiting sleeve 2. Then the protective cover is pulled out for maintenance.
[0027] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A removable boat stern tube guard characterized by: It includes a fixing ring (1), a limiting sleeve (2) is provided on the fixing ring (1), a protective cover body (3) is snapped into the inner wall of the limiting sleeve (2), an installation ring (4) is provided at the end of the protective cover body (3) to fit with the limiting sleeve (2), a snap-fit block (5) is provided at the end of the installation ring (4) to slide radially thereon, a slot (6) corresponding to the snap-fit block (5) is provided on the inner wall of the fixing ring (1), and a sealing ring (7) is provided near the snap-fit block (5) of the installation ring (4) to fit with the limiting ring.
2. The collapsible boat transom shield of claim 1, wherein: The mounting ring (4) has a mounting groove (8) at its end. A limiting rod (9) is provided in the mounting groove (8) and is arranged radially along the mounting ring (4). The snap-fit block (5) has a limiting hole corresponding to the limiting rod (9). The snap-fit block (5) is slidably arranged in the mounting groove (8). A first elastic element (10) is provided on the limiting rod (9). The first elastic element (10) has elastic potential energy to push the snap-fit block (5) closer to the limiting sleeve (2).
3. The collapsible boat transom shield of claim 2, wherein: The slot (6) has an arc-shaped lead-out surface (11) connected to the inner wall of the limiting sleeve (2) on one side. The arc-shaped lead-out surface (11) is spirally arranged away from the limiting sleeve (2). The side wall of the snap block (5) has a rounded corner (12) corresponding to the arc-shaped lead-out surface (11).
4. The collapsible boat transom shield of claim 3, wherein: The snap-fit block (5) has an inclined smooth surface at one end away from the protective cover body (3) that corresponds to the limiting sleeve (2).
5. The collapsible boat transom shield of claim 4, wherein: The end of the limiting sleeve (2) is provided with a top ring (13), and the top ring (13) has a plurality of push rods (14) arranged in a ring array facing the limiting ring. The limiting ring has a plurality of slots (15) arranged in a ring array corresponding to the plurality of push rods (14). A second elastic element (16) is sleeved on the push rods (14). The second elastic element (16) has elastic potential energy to push the top ring (13) away from the limiting sleeve (2).