Support of simple outer stairway
By using a simple external ladder support structure and the cooperation of threaded rods and guide rods, the problem of difficult welding of external ladder gaps was solved, thereby increasing the welding area and improving work efficiency.
Patent Information
- Application Number
- CN202520156692.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2035-01-23
AI Technical Summary
During ship repair and modification, excessively large gaps in the external ladder passages make welding difficult, resulting in significant waste of welding materials and low efficiency. Existing patching methods are also wasteful of materials and labor.
A simple external ladder support structure is designed, which uses threaded rods and guide rods in conjunction with a top plate and a fixed plate, and fixes the elbow plate by spot welding and full welding to increase the welding area and improve work efficiency.
The support and positioning of the support rods and elbow plates improve the welding area and efficiency, reduce material waste, and enhance the efficiency of ladder fixing.
Smart Images
Figure CN223618892U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ship modification technology, specifically to a simple external ladder support. Background Technology
[0002] When ships are repaired, modified, or refitted, large sections are often cut off around their perimeter to allow for large-scale lifting operations. The cut-off areas create gaps in the outer ladders, which are generally quite large. If welding is performed directly, the large gaps in the outer ladders result in a small welding area, making the welding process difficult. Even if welding is performed, it not only wastes a lot of welding materials but also takes a lot of time, making it inefficient. Existing methods also involve patching the gaps, but this modification method is also very material- and labor-intensive.
[0003] Therefore, this application proposes a simple external ladder support. Utility Model Content
[0004] The purpose of this utility model is to provide a simple external ladder support to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a simple external ladder support, comprising a ladder and a base plate, wherein the base plate is disposed at the top edge of the ladder, a threaded rod is disposed on the top left side of the base plate, a guide rod is disposed on the top right side of the base plate, a top plate is disposed above the threaded rod and the guide rod, a fixing plate is disposed at the right end of the top plate, an elbow plate is disposed at the lower right side of the fixing plate, a through groove is disposed in the middle of the elbow plate, an installation opening is disposed at the lower part of the fixing plate, an installation shaft is disposed in the installation opening, and a support rod is disposed on the installation shaft.
[0006] Furthermore, the left half of the top plate is provided with a threaded hole that mates with the threaded rod, and the right half of the top plate is provided with a through hole that mates with the guide rod.
[0007] Furthermore, the bottom of the threaded rod is connected to the base plate via a bearing, and a handle is provided at the top of the threaded rod.
[0008] Furthermore, the mounting shaft passes through the support rod to fix the support rod, and the support rod and the mounting shaft are movably connected. The length of the support rod on the right side of the mounting shaft is greater than the length of the support rod on the left side of the mounting shaft.
[0009] Furthermore, the size of the through groove is larger than the size of the fixed plate.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: When the threaded rod rotates, the top plate drives the fixed plate to move downwards, rotates the support rod to a horizontal position, keeps the support rod horizontal, and rotates the threaded rod in the opposite direction, causing the top plate to drive the fixed plate to move upwards, thereby driving the support rod to move upwards. After the top of the support rod contacts the bottom of the ladder in a horizontal state, spot welding is performed to fix the elbow plate. During the segmented installation of the hull, the elbow plate is installed in the gap between the ladder and the hull, increasing the welding area, facilitating the welding of the ladder, improving work efficiency, and supporting the elbow plate with the support rod. Spot welding is used to position and fix the elbow plate, and finally full welding is performed to quickly install and fix the elbow plate, further improving the ladder fixing efficiency. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the ladder structure of this utility model;
[0012] Figure 2 This is a side view of the staircase structure of this utility model;
[0013] Figure 3 This is a schematic diagram of the elbow plate fixing device of this utility model;
[0014] Figure 4 This is a schematic diagram of the elbow plate structure of this utility model;
[0015] Figure 5 This is a cross-sectional view of the elbow plate of this utility model.
[0016] In the diagram: 1. Ladder; 2. Base plate; 3. Top plate; 4. Threaded rod; 5. Guide rod; 6. Fixing plate; 7. Elbow plate; 8. Mounting port; 9. Mounting shaft; 10. Support rod; 11. Through groove. 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. 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.
[0018] Please see Figures 1-5This utility model provides a technical solution: a simple external ladder support, including a ladder 1 and a base plate 2. The base plate 2 is located at the top edge of the ladder 1. A threaded rod 4 is provided on the top left side of the base plate 2, and a guide rod 5 is provided on the top right side of the base plate 2. A top plate 3 is provided above the threaded rod 4 and the guide rod 5. A fixing plate 6 is provided at the right end of the top plate 3. An elbow plate 7 is provided at the lower right side of the fixing plate 6. A through groove 11 is provided in the middle of the elbow plate 7. An installation port 8 is provided at the lower part of the fixing plate 6. An installation shaft 9 is provided in the installation port 8. A support rod 10 is provided on the installation shaft 9. When hoisting and installing large sections of a ship, the elbow plate 7 is added to the gap between them to facilitate welding. The base plate 2 is placed on the top of the ladder, so that the fixing plate 6 at the right end of the top plate 3 is close to the edge of the ladder 1. The threaded rod 34 is rotated. The top plate 3 has a threaded hole that matches the threaded rod 4. During the rotation of the threaded rod 4, the top plate 3 drives the fixing plate 6 to move downward. The support rod 10 is rotated to the horizontal position, keeping the support rod 10 horizontal. In a horizontal position, the threaded rod 4 is rotated in the opposite direction, causing the top plate 3 to move the fixed plate 6 upward, which in turn moves the support rod 10 upward. After the top of the support rod 10 contacts the bottom of the ladder 1 in a horizontal position, the threaded rod 4 is stopped. The left end of the support rod 10 presses against the bottom of the ladder 1, and the elbow plate 7 is placed on the support rod 10. The support rod 10 supports the elbow plate 7. First, spot welding is performed to fix the elbow plate 7. Then, the threaded rod 4 is rotated, and the top plate 3 moves the fixed plate 6 downward. Under the action of gravity, the support rod 10 rotates to a vertical position through the mounting shaft 9, and the bottom plate 2 moves upward, causing the fixed plate 6 and the support rod 10 to move upward and separate from the ladder 1. During the segmented installation of the hull, the elbow plate 7 is installed in the gap between the ladder 1 and the hull to increase the welding area, facilitate the welding of the ladder 1, improve work efficiency, and support the elbow plate 7 through the support rod 10. Spot welding is used to position and fix the elbow plate 7, and finally, full welding is performed to quickly install and fix the elbow plate 7, further improving the fixing efficiency of the ladder 1.
[0019] Reference embodiment: The left half of the top plate 3 is provided with a threaded hole that mates with the threaded rod 4, and the right half of the top plate 3 is provided with a through hole that mates with the guide rod 5. During the rotation of the threaded rod 4, the threaded hole on the top plate 3 mates with the threaded rod 4, causing the top plate 3 to move up or down. The guide rod 5 guides the movement of the top plate 3, so that the movement of the top plate 3 will not deviate.
[0020] Reference embodiment: The bottom of the threaded rod 4 is connected to the base plate 2 by a bearing, and a handle is provided at the top of the threaded rod 4. The threaded rod 4 rotates through the bearing, and the handle facilitates quick rotation of the threaded rod 4.
[0021] Reference embodiment: The mounting shaft 9 passes through the support rod 10 to fix the support rod 10. The support rod 10 is movably connected to the mounting shaft 9. The length of the support rod 10 on the right side of the mounting shaft 9 is greater than the length of the support rod 10 on the left side of the mounting shaft 9. After the support rod 10 contacts the bottom of the ladder 1, the center of gravity of the support rod 10 shifts to the right. The left end of the support rod 10 presses against the bottom of the ladder 1, preventing counterclockwise rotation. When the fixing plate 6 moves the rod downward, the center of gravity of the support rod 10 shifts to the right, and it automatically rotates to a vertical position, facilitating the removal of the fixing plate 6 and the support rod 10 from the ladder 1.
[0022] Reference embodiment: The size of the through groove 11 is larger than the size of the fixed plate 6. During the placement of the elbow plate 7, the fixed plate 6 passes through the through groove 11 provided in the middle of the elbow plate 7.
[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A simple external ladder support, comprising a ladder (1) and a base plate (2), characterized in that: The base plate (2) is located at the top edge of the stairway (1). A threaded rod (4) is provided on the top left side of the base plate (2), and a guide rod (5) is provided on the top right side of the base plate (2). A top plate (3) is provided above the threaded rod (4) and the guide rod (5). A fixing plate (6) is provided at the right end of the top plate (3). An elbow plate (7) is provided at the lower right side of the fixing plate (6). A through groove (11) is provided in the middle of the elbow plate (7). An installation port (8) is provided at the lower part of the fixing plate (6). An installation shaft (9) is provided in the installation port (8). A support rod (10) is provided on the installation shaft (9).
2. The support for a simple external ladder as described in claim 1, characterized in that: The top plate (3) has a threaded hole on the left half that mates with the threaded rod (4), and a through hole on the right half that mates with the guide rod (5).
3. The support for a simple external ladder as described in claim 1, characterized in that: The bottom of the threaded rod (4) is connected to the base plate (2) by a bearing, and a handle is provided at the top of the threaded rod (4).
4. The support for a simple external ladder as described in claim 1, characterized in that: The mounting shaft (9) passes through the support rod (10) to fix the support rod (10). The support rod (10) and the mounting shaft (9) are movably connected. The length of the support rod (10) on the right side of the mounting shaft (9) is greater than the length of the support rod (10) on the left side of the mounting shaft (9).
5. The support for a simple external ladder as described in claim 1, characterized in that: The dimensions of the through groove (11) are larger than the dimensions of the fixing plate (6).