A ship draft survey instrument structure

CN224703218UActive Publication Date: 2026-09-01GUOKE (SHANDONG) EQUIPMENT TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202522267211.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-27
Publication Date
2026-09-01
Estimated Expiration
2035-10-27

AI Technical Summary

Technical Problem

[0003]这两种方式,都需要工作人员人为去进行观测,风险较大,难以保障工作人员的安全,因此,现有技术中开始出现设置观测仪或者无人机进行水尺观测的方式,对于无人机,由于无人机在某些海域和码头禁用,所以适用性较差,对于观测仪,现有技术中大多采用伸缩式的结构或者水下放置式的结构,例如中国实用新型专利CN217211039U便携式船舶水尺观测仪;或者中国实用新型专利CN223116563U一种船舶水尺检测装置,可以看出,这类结构虽然能够有效的观测水尺情况,但是受到水面的影响较大,观测主要依赖观测探头或者摄像机,观测结果少,观测效果差,难以得到更加准确的水尺观测数值

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Abstract

This application provides a ship draft survey instrument structure, including a base, a telescopic frame, a first observation component, and a second observation component. The telescopic frame includes a connecting part and a telescopic part. The connecting part is hinged to the base, and the telescopic part extends vertically in a square shape. The first observation component is disposed on the side wall at the end of the telescopic part, and the second observation component is disposed on the bottom wall at the end of the telescopic part. This allows the first and second observation components to automatically move down to the water surface for observation, eliminating the need for personnel to travel by boat or climb ladders, making it safer and more reliable. The two sets of observation components provide observations from the side and the water surface, respectively, offering more observation angles and obtaining more image information, thereby improving the accuracy of observations and reducing the phenomenon of poor observation results caused by water ripples, skylight angles, etc., thus improving the reliability of use.
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Description

Technical Field

[0001] This utility model belongs to the field of shipbuilding technology, specifically, it relates to a structure for a ship draft gauge. Background Technology

[0002] For ships at sea, especially larger cargo ships, the weighing method for transporting cargo is usually draft survey. In the existing technology, draft surveys are usually installed on the bow, stern, and both sides of the hull during the middle of the ship. The draft survey readings are usually done after the ship is docked. The draft survey readings on the side of the ship facing the shore are easy to read, but the draft surveys on the stern, bow, and other sides are not easy to read. One existing technology is to have draft surveyors climb down from the ship via a rope ladder to the draft survey position to read the draft survey readings. Another method is for staff to ride in a small boat around the side of the ship facing the water and around the bow and stern to read the draft survey readings.

[0003] Both of these methods require manual observation by staff, which carries significant risks and makes it difficult to guarantee the safety of the staff. Therefore, existing technologies have begun to use observation instruments or drones for water draft observation. However, drones are not widely applicable due to their prohibition in certain sea areas and docks. As for observation instruments, most existing technologies adopt telescopic or underwater-placed structures, such as the portable ship water draft observation instrument (Chinese utility model patent CN217211039U) or a ship water draft detection device (Chinese utility model patent CN223116563U). It can be seen that although these structures can effectively observe water draft conditions, they are greatly affected by the water surface. The observation mainly relies on observation probes or cameras, resulting in fewer observation results, poor observation effects, and difficulty in obtaining more accurate water draft observation values.

[0004] Therefore, existing technologies need further improvement and enhancement. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a structure for a ship draft observation instrument.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows: This application provides a ship draft survey instrument structure, including a base, a telescopic frame, a first observation component, and a second observation component. The telescopic frame includes a connecting part and a telescopic part. The connecting part is hinged to the base. The telescopic part extends vertically in a square shape. The first observation component is disposed on the side wall at the end of the telescopic part, and the second observation component is disposed on the bottom wall at the end of the telescopic part.

[0007] In a preferred embodiment of this application, the first observation component includes a mounting frame and a first image acquisition component, the first image acquisition component being hinged to the mounting frame, and the first image acquisition component having a horizontal first acquisition position and an inclined second acquisition position.

[0008] In a preferred embodiment of this application, an adjustable plate is provided on the end sidewall of the telescopic part, and a vertical slide rail is provided on the surface of the adjustable plate, which is slidably connected to the mounting frame.

[0009] In a preferred embodiment of this application, the second observation component includes an image acquisition tube, a probe disposed at the head section of the image acquisition tube, and a second image acquisition element disposed within the image acquisition tube.

[0010] In a preferred embodiment of this application, the end of the probe away from the image acquisition tube can contact the water gauge, and the first section of the probe is provided with an electromagnetic structure.

[0011] In a preferred embodiment of this application, the image acquisition tube has an L-shaped structure, the probe is set horizontally, a 45° light guide is set at the junction of the horizontal and vertical parts of the image acquisition tube, and the second image acquisition element is set in the vertical part.

[0012] In a preferred embodiment of this application, the base is provided with a control box and an observation platform. The control box is connected to the telescopic frame, the first observation component, and the second observation component. The observation platform is able to receive image information from the first observation component and the second observation component.

[0013] After adopting the above technical solution, the ship draft observation instrument structure provided by this utility model has the following beneficial effects compared with the prior art.

[0014] This application, by setting up a base and a telescopic frame, allows the observation instrument structure to be positioned on the ship, providing a suitable location for the instrument and ensuring observation stability. Furthermore, the telescopic frame structure allows the first and second observation components to automatically descend to the water surface for observation, eliminating the need for personnel to travel by boat or climb ladders, making it safer and more reliable. Moreover, this application features two sets of observation components, observing from the side and the water surface respectively. Compared to existing technologies that rely solely on cameras or other observation equipment, this application provides more observation angles and obtains more image information, thereby improving observation accuracy and reducing poor observation results caused by water ripples, skylight angles, etc., thus enhancing reliability. Attached Figure Description

[0015] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a front structural diagram of the first and second observation components of this utility model; Figure 3 This is a schematic diagram of the structure of the first observation component of this utility model.

[0016] In the picture: 1. Base; 2. Telescopic frame; 21. Connecting part; 22. Telescopic part; 3. First observation component; 31. First image acquisition component; 32. Mounting frame; 33. Adjustable plate; 34. Slide rail; 4. Second observation component; 41. Image acquisition tube; 42. Second image acquisition component; 43. Probe; 44. Light guide mirror; 45. Electromagnetic structure; 5. Reinforcing frame.

[0017] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0019] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.

[0020] 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] like Figures 1 to 3 As shown, this application provides a ship draft survey instrument structure, including a base 1, a telescopic frame 2, a first observation component 3, and a second observation component 4. The telescopic frame 2 includes a connecting part 21 and a telescopic part 22. The connecting part 21 is hinged to the base 1. The telescopic part 22 extends vertically in a square shape. The first observation component 3 is disposed on the end side wall of the telescopic part 22, and the second observation component 4 is disposed on the end bottom wall of the telescopic part 22.

[0023] Among them, such as Figure 1 As shown, the base 1 adopts a crane-like base structure and is equipped with a reinforcing frame 5 to improve the connection between the base 1 and the hull and ensure the reliability of the base 1 during use. The base 1 has a hinged connecting frame, with the two ends of the connecting frame connected to the main body of the base 1 and the telescopic frame 2, respectively. This facilitates the observation of the water level gauge set on the hull surface by extending the telescopic frame 2 outward from the hull. The telescopic frame 2 can adopt a common multi-segment extension rod or a tower-type telescopic frame to drive the first observation component 3 and the second observation component 4 toward the water surface to observe the water level gauge. Its general structure is similar to that of Chinese Utility Model Patent CN219707283U, a ship water level gauge detection device.

[0024] In a preferred embodiment of this application, the first observation component 3 includes a mounting frame 32 and a first image acquisition component 31. The first image acquisition component 31 is hinged to the mounting frame 32 and has a horizontal first acquisition position and an inclined second acquisition position.

[0025] It is understandable that a high-speed industrial camera with wireless transmission function can be used for the first image acquisition device 31 to reduce the impact of the ship's swaying caused by water waves on the water level observation; for the mounting frame 32 structure, a semi-open box structure can be adopted, in which the first image acquisition device 31 is placed and can swing vertically relative to the inner wall of the mounting frame 32.

[0026] The inner wall of the mounting frame 32 is equipped with a small rotating motor. The two side walls of the first image acquisition unit 31 are equipped with mating parts that are rotatably connected to the rotating motor. The rotating motor provides power to the first image acquisition unit 31, driving it to swing from the horizontally set first acquisition position to the upwardly tilted second acquisition position, realizing observation at two angles, thereby obtaining a more complete and tilted water gauge observation image and improving the accuracy of the observation.

[0027] In a preferred embodiment of this application, an adjustable plate 33 is provided on the end side wall of the telescopic part 22, and a vertical slide rail 34 is provided on the surface of the adjustable plate 33. The vertical slide rail 34 is slidably connected to the mounting frame 32.

[0028] Understandably, this application uses the telescopic part 22 structure to adjust the vertical position of the first observation component 3, making it convenient for the first observation component 3 to be close to the water gauge for observation. However, since the telescopic part 22 has a relatively large telescopic length range, the closer it is to the water gauge, the more precise the height adjustment needs to be to ensure that the first observation component 3 is in a position directly facing the water gauge for observation. Therefore, this application sets up an adjustable plate 33 structure, which is slidably connected to the mounting frame 32. After the telescopic part 22 drives the first observation component 3 and the adjustable plate 33 to the approximate observation position, the vertical position is finely adjusted by sliding the mounting frame 32 along the surface of the adjustable plate 33, further improving the accuracy of the observation.

[0029] Optionally, an electric telescopic rod is provided on the top of the adjustable plate 33, and a sliding groove is provided on the back plate of the mounting frame 32. The electric telescopic rod is connected to the top of the mounting frame 32, driving the mounting frame 32 to move vertically. The cooperation between the sliding groove and the vertical slide rail 34 can make the movement smoother and ensure the stability of the movement.

[0030] In a preferred embodiment of this application, the second observation component 4 includes an image acquisition tube 41, a probe 43 disposed at the head of the image acquisition tube 41, and a second image acquisition element 42 disposed within the image acquisition tube 41.

[0031] As shown in the figure, the end of the probe 43 furthest from the image acquisition tube 41 can contact the water gauge, and an electromagnetic structure 45 is provided at the head of the probe 43. It can be understood that a ring-shaped electromagnet can be installed at the head of the probe 43, thereby activating the electromagnetic structure 45 when the second observation component 4 approaches the water gauge, causing the probe 43 to adhere to the surface of the hull, improving the stability of the second image acquisition component 42 during observation, and further improving the accuracy of the observation results.

[0032] The selection of the second image acquisition component 42 and the structure of the second observation component 4 can be configured using different embodiments. For ease of description, the structure and function will be introduced below through two embodiments.

[0033] Example 1: In this embodiment, as Figure 1 As shown, the image acquisition tube 41 has an L-shaped structure, the probe tube 43 is set horizontally, a 45° light guide mirror 44 is set at the junction of the horizontal and vertical parts of the image acquisition tube 41, and the second image acquisition element 42 is set in the vertical part.

[0034] Furthermore, the probe 43 is located in the horizontal section and faces the side of the ship where the water gauge is located, making it convenient to approach the water gauge side and contact the ship hull. Behind it is the horizontal section of the image acquisition tube 41. In order to ensure sufficient light and facilitate the observation of the water gauge scale, the diameters of the image acquisition tube 41 and the probe 43 are set to be relatively large, which can cover part of the water gauge scale. The probe 43 is made of transparent material to receive light and image information. The second image acquisition device 42 can adopt a high-performance CMOS sensor industrial waterproof camera to acquire image and optical information and transmit it wirelessly to the base 1 for observation of image information.

[0035] It is understandable that by setting a 45° light guide mirror 44, the originally horizontal light can be transformed into vertical light. Furthermore, by setting the structure of the probe tube 43 and the image acquisition tube 41, the second image acquisition component 42 is placed in a closed space, reducing water interference. When the telescopic frame 2 drives the second observation component 4 to collect water level information through the water surface, the light is transmitted inside the image acquisition tube 41, and the ripples on the water surface have less impact on the internal image acquisition, thus obtaining more accurate data.

[0036] Example 2: In this embodiment, the only difference from Embodiment 1 is that the light guide mirror 44 is removed, and a high-speed industrial camera or a CMOS sensor industrial waterproof camera is used to directly detect the target area. Although the acquisition effect is lower than that of Embodiment 1, it is cheaper and more widely applicable.

[0037] As a preferred embodiment of this application, such as Figure 1 As shown, the base 1 is equipped with a control box and an observation platform. The control box is connected to the telescopic frame 2, the first observation component 3, and the second observation component 4. The observation platform can receive image information from the first observation component 3 and the second observation component 4.

[0038] It is understandable that the control box must contain a data board structure, which can be detected and driven by a PLC program or a microcontroller program to identify image information, facilitate the recording and observation of the water level gauge information, and manually or automatically control the movement of the base 1 and the telescopic frame 2.

[0039] 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 the present invention. 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0040] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A structure for a ship draft survey instrument, characterized in that, The device includes a base, a telescopic frame, a first observation component, and a second observation component. The telescopic frame includes a connecting part and a telescopic part. The connecting part is hinged to the base. The telescopic part extends vertically in a square shape. The first observation component is disposed on the side wall at the end of the telescopic part, and the second observation component is disposed on the bottom wall at the end of the telescopic part.

2. The structure of a ship draft gauge as described in claim 1, characterized in that, The first observation component includes a mounting frame and a first image acquisition element, the first image acquisition element being hinged to the mounting frame, and the first image acquisition element having a horizontal first acquisition position and an inclined second acquisition position.

3. The structure of a ship draft gauge as described in claim 2, characterized in that, An adjustable plate is provided on the end side wall of the telescopic part, and a vertical slide rail is provided on the surface of the adjustable plate. The vertical slide rail is slidably connected to the mounting frame.

4. The structure of a ship draft gauge as described in claim 1, characterized in that, The second observation component includes an image acquisition tube, a probe disposed at the head section of the image acquisition tube, and a second image acquisition element disposed within the image acquisition tube.

5. The structure of a ship draft gauge as described in claim 4, characterized in that, The end of the probe away from the image acquisition tube can contact the water gauge, and the first section of the probe is equipped with an electromagnetic structure.

6. The structure of a ship draft gauge as described in claim 5, characterized in that, The image acquisition tube has an L-shaped structure, the probe is set horizontally, a 45° light guide is set at the junction of the horizontal and vertical parts of the image acquisition tube, and the second image acquisition component is set in the vertical part.

7. The structure of a ship draft gauge as described in claim 1, characterized in that, The base is equipped with a control box and an observation platform. The control box is connected to the telescopic frame, the first observation component, and the second observation component. The observation platform is capable of receiving image information from the first observation component and the second observation component.

Citation Information

Patent Citations

  • Portable ship water gauge observation instrument

    CN217211039U

  • Ship water gauge detection device

    CN219707283U

  • Ship water gauge detection device

    CN223116563U