Rudder angle indicating tool

By using a dial fixed to the hull and a detachable indicator structure in the rudder angle indicator fixture, the problem of rudder rotation angle reading error was solved, achieving accurate and convenient rudder angle indication and improving the stability of the ship.

CN122009461APending Publication Date: 2026-05-12WUCHANG SHIPBUILDING INDUSTRY GROUP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WUCHANG SHIPBUILDING INDUSTRY GROUP CO LTD
Filing Date
2026-01-28
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing rudder angle measuring fixtures are prone to errors when reading the rudder blade rotation angle, which affects the normal navigation of the ship.

Method used

Design a rudder angle indicator fixture, including a dial fixed to the hull and a detachable indicator structure connected to the rudder shaft. The pointer on the dial indicates the rotation angle of the rudder blade, avoiding dependence on the horizontal tube and simplifying the installation process.

Benefits of technology

It improves the accuracy and convenience of reading the rudder blade rotation angle, reduces labor intensity, and ensures the normal operation of the ship.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the technical field of ships, and particularly relates to a rudder angle indicating tool. The rudder angle indicating tool comprises a dial plate which is fixed on a ship body and is provided with angle scales; the indicating structure comprises a connecting assembly and a pointer, the connecting assembly is detachably connected with the rudder shaft, and the pointer is connected with the connecting assembly; wherein in the axial direction of the rudder shaft, at least part of the projection of the pointer falls on the dial plate and is used for indicating angle scales. The rudder angle indicating tool can guarantee the indicating precision.
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Description

Technical Field

[0001] This application belongs to the field of marine technology, specifically relating to a rudder angle indicating tooling. Background Technology

[0002] The rudder angle indicator is a key system used in ship navigation to display the rotation angle of the rudder blade in real time. Its core function is to provide the helmsman with accurate rudder position feedback to ensure the accuracy of course control.

[0003] In related technologies, a special measuring tool for rudder angle is used to determine the rotation angle of the rudder blade. However, the special measuring tool for rudder angle has a horizontal tube. After the rudder blade rotates a certain angle each time, when reading the rotation angle of the rudder blade, it is necessary to observe whether the horizontal tube is horizontal, which can easily cause reading errors and affect the normal navigation of the ship. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a rudder angle indicating fixture, which aims to at least partially solve the technical problem that errors easily occur when reading the rotation angle of the rudder blade, affecting the normal navigation of the ship.

[0005] The technical solution of this invention is as follows: A rudder angle indicating fixture includes: a dial fixed to the hull, the dial having an angle scale; an indicating structure including a connecting component and a pointer, the connecting component being detachably connected to a rudder shaft, the pointer being connected to the connecting component; wherein, along the axial direction of the rudder shaft, the projection of the pointer at least partially falls on the dial, for indicating the angle scale.

[0006] In some embodiments, the connection assembly includes: a first clamping member connected to the pointer; and a second clamping member detachably connected to the first clamping member; wherein the rudder shaft is located between the first clamping member and the second clamping member.

[0007] In some embodiments, both the first clamping member and the second clamping member include: a body; two connecting seats disposed at both ends of the body; wherein the two connecting seats of the first clamping member are detachably connected to the two connecting seats of the second clamping member.

[0008] In some embodiments, the connecting assembly includes two locking members; the locking members pass through the connecting seat of the first clamping member and are connected to the connecting seat of the second clamping member.

[0009] In some embodiments, the locking member includes: a first limiting part; a second limiting part; and a connecting part, one end of which is connected to the first limiting part, and the other end of which passes through the connecting seat of the first clamping member and the connecting seat of the second clamping member, and is connected to the second limiting part.

[0010] In some embodiments, a washer is provided between the connecting seat of the first clamping member and the connecting seat of the second clamping member.

[0011] In some implementations, the body is arc-shaped.

[0012] In some embodiments, the dial includes: an arc plate having angular scales, the arc plate being connected to the hull; and a reinforcing assembly connected to one side of the arc plate.

[0013] In some embodiments, the reinforcing assembly includes: a plurality of reinforcing members connected to one side of the arc plate; wherein two adjacent reinforcing members are connected at the ends away from the arc plate.

[0014] In some embodiments, the dial includes two connectors, each angled at one end of the arc plate; wherein the connectors extend axially along the rudder shaft.

[0015] The beneficial effects of the present invention include at least the following: Because the dial is fixed to the hull and has an angle scale, the indicating structure includes a connecting component and a pointer. The connecting component is detachably connected to the rudder shaft, and the pointer is connected to the connecting component. Along the axial direction of the rudder shaft, the projection of the pointer at least partially falls on the dial to indicate the angle scale. Therefore, when the rudder shaft drives the rudder blade to rotate at a certain angle, the rudder shaft drives the pointer to rotate through the connecting component, so that the pointer can move on the dial. When the rudder blade stops rotating, the angle scale indicated by the pointer is the rotation angle of the rudder blade. There is no need for a level tube or to judge whether the level tube is level. Reading the rotation angle of the rudder blade is convenient and accurate, which can reduce labor intensity and ensure indication accuracy, ensuring that the ship can sail normally.

[0016] When determining the zero position of the rudder blade, the connecting assembly is installed on the rudder shaft. At the same time, the installation position of the connecting assembly on the rudder shaft is adjusted so that the pointer indicates the 0 position of the angle scale, which facilitates the determination of the zero position of the rudder blade. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the rudder angle indicating fixture in some embodiments; Figure 2 for Figure 1Side sectional view of the rudder angle indicator fixture; Figure 3 for Figure 1 A schematic diagram of the structure of the first clamping component of the connecting assembly of the rudder angle indicator tooling; Figure 4 for Figure 3 Side view of the first clamping component; Figure 5 for Figure 3 A cross-sectional view of the first clamping component; Figure 6 for Figure 1 A schematic diagram of the structure of the second clamping component of the connecting assembly of the rudder angle indicator tooling; Figure 7 for Figure 6 Side view of the second clamping component; Figure 8 for Figure 1 A schematic diagram of the dial structure of the rudder angle indicator fixture; Figure 9 for Figure 8 A cross-sectional view of the center dial.

[0019] In the attached image: 10. Dial 11. Angle scale 12. Arc plate 13. Reinforcing component 13. Reinforcing part 131. Connector 14; Indicator structure 20, connecting component 21, first clamping member 211, body 2111, connecting seat 2112, second clamping member 212, locking member 213, first limiting part 2131, second limiting part 2132, connecting part 2133, washer 214, pointer 22. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0021] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0022] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0023] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0024] Specific technical solutions will now be described in detail with reference to the accompanying drawings, which are not necessarily drawn to scale. Similar or identical reference numerals may be used to designate the same or similar parts in different figures. The use of similar or identical reference numerals in different figures does not mean that all figures including similar or identical reference numerals constitute a single or the same embodiment. The accompanying drawings illustrate the various embodiments discussed in this application in a generalized, illustrative, and not restrictive manner.

[0025] Combination Figure 1 and Figure 2 The rudder angle indicating fixture of this application embodiment includes a dial 10 and an indicating structure 20. The dial 10 is fixed to the hull and has an angle scale 11. The indicating structure 20 includes a connecting component 21 and a pointer 22. The connecting component 21 is detachably connected to the rudder shaft, and the pointer 22 is connected to the connecting component 21. The projection of the pointer 22, along the axial direction of the rudder shaft, at least partially falls on the dial 10, for indicating the angle scale 11.

[0026] Since the dial 10 is fixed to the hull, and the dial 10 has an angle scale 11, the indicating structure 20 includes a connecting component 21 and a pointer 22. The connecting component 21 is detachably connected to the rudder shaft, and the pointer 22 is connected to the connecting component 21. Along the axial direction of the rudder shaft, the projection of the pointer 22 at least partially falls on the dial 10 to indicate the angle scale 11. Therefore, when the rudder shaft drives the rudder blade to rotate at a certain angle, the rudder shaft drives the pointer 22 to rotate through the connecting component 21, so that the pointer 22 can move on the dial 10. When the rudder blade stops rotating, the angle scale 11 indicated by the pointer 22 is the rotation angle of the rudder blade. No level tube is needed, and it is not necessary to judge whether the level tube is horizontal. Reading the rotation angle of the rudder blade is convenient and accurate, which can reduce labor intensity and ensure indication accuracy, ensuring that the ship can sail normally.

[0027] When determining the zero position of the rudder blade, the connecting component 21 is installed on the rudder shaft. At the same time, the installation position of the connecting component 21 on the rudder shaft is adjusted so that the pointer 22 indicates the 0 position of the angle scale 11, which facilitates the determination of the zero position of the rudder blade.

[0028] In related technologies, the special measuring tool for rudder angle is installed on the rudder blade, which leads to complicated installation, many installation steps, long installation time, and affects installation efficiency.

[0029] Combination Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 In some embodiments, to improve installation efficiency, the connecting component 21 includes a first clamping member 211 and a second clamping member 212. The first clamping member 211 is connected to the pointer 22. The second clamping member 212 is detachably connected to the first clamping member 211. The rudder shaft is located between the first clamping member 211 and the second clamping member 212. The rudder shaft is clamped by the first clamping member 211 and the second clamping member 212 to achieve the installation of the connecting component 21. By clamping the first clamping member 211 and the second clamping member 212 onto the circumferential surface of the rudder shaft and connecting the first clamping member 211 and the second clamping member 212, the installation of the connecting component 21 can be achieved. This method is simple, involves few steps, and is quick, thus improving installation efficiency.

[0030] Combination Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7In some embodiments, to achieve the connection between the first clamping member 211 and the second clamping member 212, both the first clamping member 211 and the second clamping member 212 include: a body 2111 and two connecting seats 2112. The two connecting seats 2112 are disposed at both ends of the body 2111. The two connecting seats 2112 of the first clamping member 211 are detachably connected to the two connecting seats 2112 of the second clamping member 212. This connection between the connecting seats 2112 of the first clamping member 211 and the connecting seats 2112 of the second clamping member 212 allows the first clamping member 211 and the second clamping member 212 to clamp the rudder shaft, facilitating their installation on the rudder shaft.

[0031] Combination Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 In some embodiments, to connect the connecting seat 2112 of the first clamping member 211 to the connecting seat 2112 of the second clamping member 212, the connecting assembly 21 includes two locking members 213. The locking members 213 pass through the connecting seat 2112 of the first clamping member 211 and are connected to the connecting seat 2112 of the second clamping member 212. By locking with the locking members 213, the connection between the connecting seat 2112 of the first clamping member 211 and the connecting seat 2112 of the second clamping member 212 can be achieved.

[0032] Combination Figure 1 In some embodiments, to connect the connecting seat 2112 of the first clamping member 211 to the connecting seat 2112 of the second clamping member 212, the locking member 213 includes: a first limiting part 2131, a second limiting part 2132, and a connecting part 2133. One end of the connecting part 2133 is connected to the first limiting part 2131, and the other end passes through the connecting seat 2112 of the first clamping member 211 and the connecting seat 2112 of the second clamping member 212, and is connected to the second limiting part 2132.

[0033] The first clamping member 211 and the second clamping member 212 are located between the first limiting part 2131 and the second limiting part 2132, and are connected to the second limiting part 2132 through the connecting part 2133, so that the connecting seat 2112 of the first clamping member 211 and the connecting seat 2112 of the second clamping member 212 are clamped by the first limiting part 2131 and the second limiting part 2132, so as to realize the connection between the connecting seat 2112 of the first clamping member 211 and the connecting seat 2112 of the second clamping member 212.

[0034] In some embodiments, the connecting portion 2133 and the first limiting portion 2131 can constitute a bolt, the connecting portion 2133 can be the bolt shank, the first limiting portion 2131 can be the bolt nut, and the second limiting portion 2132 can be a nut.

[0035] Combination Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 In some embodiments, a washer 214 is provided between the connecting seat 2112 of the first clamping member 211 and the connecting seat 2112 of the second clamping member 212 to ensure the stability of the connection between the connecting seat 2112 of the first clamping member 211 and the connecting seat 2112 of the second clamping member 212.

[0036] Combination Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 In some embodiments, the body 2111 is arc-shaped so that the first clamping member 211 and the second clamping member 212 can clamp the rudder shaft, ensuring the stability of the installation.

[0037] Combination Figure 1 , Figure 8 and Figure 9 In some embodiments, to enable the pointer 22 to indicate the angle scale 11, the dial 10 includes an arc plate 12 and a reinforcing component 13. The arc plate 12 has the angle scale 11, is connected to the hull, and is supported by the hull. The pointer 22 can indicate the angle scale 11 on the arc plate 12. The reinforcing component 13 is connected to one side of the arc plate 12 to ensure the structural strength of the arc plate 12.

[0038] Combination Figure 8 and Figure 9 In some embodiments, the reinforcing component 13 includes a plurality of reinforcing members 131. The plurality of reinforcing members 131 are connected to one side of the arc plate 12. The ends of two adjacent reinforcing members 131 furthest from the arc plate 12 are connected to ensure the structural strength of the arc plate 12.

[0039] Combination Figure 8 and Figure 9 In some embodiments, to facilitate the connection between the arc plate 12 and the hull, the dial 10 includes two connectors 14. The two connectors 14 are respectively angled and disposed at both ends of the arc plate 12. The connectors 14 extend along the axial direction of the rudder shaft. Along the axial direction of the rudder shaft, the projection of the connectors 14 onto the arc plate 12 is offset from the angle scale 11; that is, the angle scale 11 is located between the two connectors 14 to avoid interference from the connectors 14 with the movement of the pointer 22, ensuring clear indication by the pointer 22.

[0040] The arc plate 12 is connected to the hull via two connectors 14, ensuring the stability of the plate on the hull. For example, the connectors 14 are welded to the hull.

[0041] In some embodiments, the included angle between the connector 14 and the arc plate 12 can be set from 45° to 135°. In this embodiment, the included angle between the connector 14 and the arc plate 12 is 90°, that is, the connector 14 and the arc plate 12 are set perpendicularly, which is only used as an example and should not be construed as a limitation of this application.

[0042] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and 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. Therefore, they should not be construed as limitations on this application.

[0043] In the description of this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0044] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0045] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0046] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A rudder angle indicating fixture, characterized in that, include: A dial, fixed to the hull, has angular markings; The indicating structure includes a connecting component and a pointer, the connecting component being detachably connected to a rudder shaft, and the pointer being connected to the connecting component; Wherein, along the axial direction of the rudder shaft, the projection of the pointer at least partially falls on the dial, for indicating the angle scale.

2. The rudder angle indicating fixture according to claim 1, characterized in that, The connection component includes: The first clamping element is connected to the pointer; The second clamping member is detachably connected to the first clamping member; The rudder shaft is located between the first clamping member and the second clamping member.

3. The rudder angle indicating fixture according to claim 2, characterized in that, Both the first clamping member and the second clamping member include: ontology; Two connecting seats are located at both ends of the main body; The two connecting seats of the first clamping member are detachably connected to the two connecting seats of the second clamping member.

4. The rudder angle indicating fixture according to claim 3, characterized in that, The connection assembly includes two locking elements; The locking member passes through the connecting seat of the first clamping member and is connected to the connecting seat of the second clamping member.

5. The rudder angle indicating fixture according to claim 4, characterized in that, The locking element includes: First limiting part; Second limiting part; The connecting part has one end connected to the first limiting part, and the other end passes through the connecting seat of the first clamping member and the connecting seat of the second clamping member, and is connected to the second limiting part.

6. The rudder angle indicating fixture according to claim 3, characterized in that, A washer is provided between the connecting seat of the first clamping member and the connecting seat of the second clamping member.

7. The rudder angle indicating fixture according to claim 3, characterized in that, The body is arc-shaped.

8. The rudder angle indicating fixture according to any one of claims 1-7, characterized in that, The dial includes: An arc-shaped plate with angular markings is connected to the hull. A reinforcing component is connected to one side of the arc plate.

9. The rudder angle indicating fixture according to claim 8, characterized in that, The reinforcement components include: Multiple reinforcing members are connected to one side of the arc plate; The ends of two adjacent reinforcing members that are furthest from the arc plate are connected.

10. The rudder angle indicating fixture according to claim 8, characterized in that, The dial includes: Two connectors are respectively angled and located at both ends of the arc plate; The connecting member extends along the axial direction of the rudder shaft.