Tool for measuring planeness of outer plate of roll-on-roll-off ship

By designing a planarity measurement tool for ship outer plates, the problems of inconvenience in inspection and increase worker costs in the prior art are solved, efficient and simple planarity inspection is achieved, and the aesthetics of the outer plates are improved.

CN223050609UActive Publication Date: 2025-07-01CHINA MERCHANTS JINLING SHIPBUILDING (JIANGSU) CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422196843.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-09
Publication Date
2025-07-01
Estimated Expiration
2034-09-09

AI Technical Summary

Technical Problem

In the prior art, when checking the flatness of the outer plate of the ship, there is a problem of inconvenience in inspection and the need to use mobile trolleys to increase the cost of workers.

Method used

A planarity measurement tool for the outer robo-board outer plate is designed, including a measuring plate, a calibration movable ruler and a fixed ruler. Through mirror symmetrical arrangement, the planarity measurement is realized by combining the target sheet and the fixed ruler.

Benefits of technology

The tooling is compact in structure and easy to operate, which can effectively improve work efficiency, reduce labor costs, and improve the aesthetics of the Ro-Ro-Ro-Ro-Ship Outer Board.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223050609U_ABST
    Figure CN223050609U_ABST
Patent Text Reader

Abstract

The utility model provides a roll-on-roll-off ship outer plate flatness measuring tool which comprises a measuring plate, a verification movable ruler and a fixed ruler, two protruding blocks are arranged at the two ends of one side face of the measuring plate in the thickness direction in a mirror symmetry mode, and a fixing groove is formed in the middle of the side face of the measuring plate in the length direction. The extension direction of the fixing groove is perpendicular to the side face where the two protruding blocks are located, one end of the fixing groove extends to the side face where the two protruding blocks are located, the verification movable ruler is arranged in the fixing groove, a target piece is fixed to the lower portion of the verification movable ruler, and a fixing ruler is arranged on the side face, located on one side of the fixing groove, of the measuring plate in the extension direction of the fixing groove. When plane measurement is carried out, the upper end face of the verification movable ruler and the upper end face of the protruding block are located in the same plane, and the zero position of the target piece is aligned with the zero position of the fixed ruler. The planeness measuring tool for the outer plate of the roll-on-roll-off ship is compact in structure, convenient to operate, time-saving, labor-saving and high in working efficiency.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model belongs to the technical field of shipbuilding, and particularly relates to a flatness measuring tool for the outer plate of a ro-ro ship. Background Art

[0002] In terms of the aesthetics of the outer plate of a ship, it is particularly important. Auxiliary tools play a very important role in the process control and final acceptance. At present, after the section is completed, it is placed on the bracket position about 2.4 meters above the ground, which is inconvenient for inspection. It is necessary to use a mobile trolley to complete the inspection. The mobile trolley requires workers to cooperate with the inspector to complete, increasing the labor cost. Therefore, a flatness measuring tool for the outer plate is developed to improve work efficiency. On the basis of reducing labor costs, the flatness inspection of the outer plate can be better completed, and the aesthetics of the outer plate of the ro-ro ship in our factory can be improved. Content of the Utility Model

[0003] In view of the above problems, the utility model provides a flatness measuring tool for the outer plate of a ro-ro ship.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A flatness measuring tool for the outer plate of a ro-ro ship includes a measuring plate, a calibration movable ruler and a fixed ruler. At both ends of one side of the thickness of the measuring plate, two convex blocks that can move left and right are symmetrically arranged in a mirror image. In the middle of the side of the measuring plate in the length direction, a fixed groove is opened. The extending direction of the fixed groove is perpendicular to the side where the two convex blocks are located, and one end of the fixed groove extends to the side where the two convex blocks are located. The calibration movable ruler is placed in the fixed groove. A target piece is fixed at the lower part of the calibration movable ruler. On the side of the measuring plate on one side of the fixed groove, a fixed ruler is arranged along the extending direction of the fixed groove. When performing plane measurement, the upper end surface of the calibration movable ruler and the upper end surface of the convex block are in the same plane, and the zero position of the target piece is aligned with the zero position on the fixed ruler.

[0006] Further, the upper end part of the calibration movable ruler is in the shape of an isosceles trapezoid, and the small bottom surface of the isosceles trapezoid is the top end surface of the calibration movable ruler.

[0007] Further, the measuring plate includes a measuring part and a handle part. The shape of the measuring part is an inverted isosceles triangle, and the shape of the handle part is a rectangle. The handle part is located below the measuring part, and the two are integrally formed and connected. The handle part and the measuring part are arranged on the same center line. The center line of the fixed groove coincides with the center line of the handle part. The two convex blocks are located at both ends of the bottom end surface of the inverted isosceles triangle.

[0008] Further, the part of the measuring part on both sides of the fixed groove is a hollow structure.

[0009] For the flatness measurement tool for the outer plate of a ro-ro ship of the present utility model, during use, first, install the calibration movable ruler in the fixed groove; paste the target piece on the side end face of the calibration movable ruler; then, check whether the zero positions of the calibration movable ruler and the fixed ruler are aligned; third, place the tip end face of the calibration movable ruler and the highest end of the fixed frame on the same plane, adjust the 0 position of the movable ruler to be aligned with the 0 position of the fixed ruler, and start the measurement; finally, read the data of the change of the movable ruler relative to the fixed ruler. If the zero position of the calibration movable ruler moves upward relative to the zero position of the fixed tooth, it indicates that the outer plate plane is concave inward. If the zero position of the calibration movable ruler moves downward relative to the zero position of the fixed tooth, it indicates that the outer plate plane is convex outward.

[0010] The flatness measurement tool for the outer plate of a ro-ro ship of the present utility model is compact in structure, convenient to operate, time-saving and labor-saving, and has high working efficiency. Brief Description of the Drawings

[0011] Figure 1 is the front view of the flatness measurement tool for the outer plate of a ro-ro ship described in the present utility model.

[0012] Wherein, 1 - measuring plate, 2 - calibration movable ruler, 3 - fixed ruler, 4 - target piece, 11 - fixed groove, 12 - convex block, 13 - measuring part, 14 - handle part. Detailed Embodiment

[0013] The present utility model will be further described below in conjunction with the drawings and specific embodiments.

[0014] As Figure 1 shown, a flatness measurement tool for the outer plate of a ro-ro ship includes a measuring plate 1, a calibration movable ruler 2 and a fixed ruler 3. At both ends of one side face of the thickness of the measuring plate 1, two convex blocks 12 that can move left and right are symmetrically arranged in a mirror image. In the middle of the side face of the measuring plate 1 in the length direction, a fixed groove 11 is opened. The extending direction of the fixed groove 11 is perpendicular to the side face where the two convex blocks 12 are located, and one end of the fixed groove 11 extends to the side face where the two convex blocks 12 are located. The calibration movable ruler 2 is placed in the fixed groove 11. A target piece 4 is fixed at the lower part of the calibration movable ruler 2. On the side face of the measuring plate 1 on one side of the fixed groove 11, a fixed ruler 3 is arranged along the extending direction of the fixed groove 11. When performing plane measurement, the upper end face of the calibration movable ruler 2 and the upper end face of the convex block 12 are located on the same plane, and the zero position of the target piece 4 is aligned with the zero position on the fixed ruler 3.

[0015] The measurement plate 1 includes a measurement portion 13 and a handle portion 14. The shape of the measurement portion 13 is an inverted isosceles triangle, and the shape of the handle portion 14 is a rectangle. The handle portion 14 is located below the measurement portion 13, and the two are integrally formed and connected. The handle portion 14 and the measurement portion 13 are arranged on the same center line. The center line of the fixing groove 11 coincides with the center line of the handle portion 14. The two bumps 12 are located at both ends of the bottom end face of the inverted isosceles triangle, and the part of the measurement portion 13 on both sides of the fixing groove 11 is a hollow structure; the upper end portion of the calibration movable ruler 2 is in the shape of an isosceles trapezoid, and the small bottom surface of the isosceles trapezoid is the top end surface of the calibration movable ruler 2.

[0016] Those of ordinary skill in the art should understand that the above are only specific embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A flatness measuring tool for the outer plate of a ro-ro ship, characterized in that: The invention comprises a measuring plate, a movable calibration ruler and a fixed ruler. Two protrusions which can move left and right are arranged in mirror symmetry at both ends of one side surface of the thickness of the measuring plate. A fixed groove is arranged in the middle of the side surface in the length direction of the measuring plate. The extension direction of the fixed groove is perpendicular to the side surface where the two protrusions are located, and one end of the fixed groove extends to the side surface where the two protrusions are located. The movable calibration ruler is placed in the fixed groove. A target piece is fixed at the lower part of the movable calibration ruler. A fixed ruler is arranged on the side surface of the measuring plate located on one side of the fixed groove along the extension direction of the fixed groove. When plane measurement is performed, the upper end surface of the movable calibration ruler and the upper end surface of the protrusion are located in the same plane, and the zero position of the target piece is aligned with the zero position on the fixed ruler.

2. The flatness measuring tool for the outer plate of a ro-ro ship according to claim 1, characterized in that: The upper end of the calibration movable ruler is in the shape of an isosceles trapezoid, and the small bottom surface of the isosceles trapezoid is the top end surface of the calibration movable ruler.

3. The flatness measuring tool for the outer plate of a ro-ro ship according to claim 1, characterized in that: The measuring plate includes a measuring part and a handle part. The measuring part is in the shape of an inverted isosceles triangle, and the handle part is in the shape of a rectangle. The handle part is located below the measuring part, and the two are integrally connected. The handle part and the measuring part are arranged on the same center line, and the center line of the fixing groove coincides with the center line of the handle part. Two protrusions are located at both ends of the bottom end surface of the inverted isosceles triangle.

4. The flatness measuring tool for the outer plate of a ro-ro ship according to claim 3 is characterized in that: The measuring parts located at both sides of the fixing groove are hollow structures.