Inland waterway ship draught detection device

The system automatically detects the draft of ships using a laser rangefinder and a servo motor-driven detection board, solving the problems of inaccurate draft detection and safety in inland waterway navigation, and achieving high-precision and rapid draft detection.

CN224045384UActive Publication Date: 2026-03-27江西省赣东航道事务中心
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-23
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

In existing technologies, the draft detection of vessels in inland waterways is not accurate enough and poses safety hazards under adverse weather conditions, making it difficult to obtain readings quickly.

Method used

A laser rangefinder, combined with a servo motor and drive gears, drives the detection plate to move vertically. With the help of a float and a reading camera, it automatically detects the ship's draft. It is stably installed using a mounting bracket and locking bolts, and friction is reduced by using drag-reducing pulleys to ensure the stability and accuracy of the detection.

Benefits of technology

It enables high-precision and safe ship draft detection in various environments, avoiding the dangers of manual observation and improving the accuracy and speed of detection.

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Abstract

The utility model discloses an inland waterway ship draught detection device which comprises an installation frame, a locking bolt is installed at the bottom of one end of the installation frame in a penetrating mode, and a positioning square barrel is fixed to the top of the other end of the installation frame. The driving gear is connected with the side face of the detection plate, the detection plate penetrates through an upper stable sleeve, the upper stable sleeve is fixedly installed at the other end of the installation frame, the detection plate penetrates through a lower stable sleeve, and the lower stable sleeve is fixedly installed on the top face of the floating plate. A reading camera and a transparent protective cover are fixedly installed on one side of the bottom face of the floating plate, and the transparent protective cover is arranged on the outer side of the reading camera. According to the inland waterway ship draught detection device, the novel structural design is adopted, the bottommost end position of a ship is positioned in a laser ranging mode, manual outdoor observation is not needed in cooperation with the floating plate and the monitoring device, the ship draught depth can be directly detected in various environments, accuracy is higher, and safety is higher.
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Description

TECHNICAL FIELD

[0001] The utility model relates to ship technology field, concretely is a river channel ship draught detection device. BACKGROUND

[0002] The water depth of the river channel is usually shallow and is greatly influenced by seasons and hydrological conditions. By detecting the actual draught depth of the ship, the risk of the ship grounding or running aground due to excessive draught can be prevented, and the risk of collision can be reduced by reasonably controlling the draught.

[0003] Currently, personnel generally observe the draught line marked on the ship from top to bottom on the ship side to determine the draught depth, which is not only inaccurate, but also cannot quickly read the data when the wind and waves are large and the visibility is low, and the personnel also have certain risks when reading the data. Therefore, a river channel ship draught detection device needs to be designed to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a river channel ship draught detection device to solve at least one technical problem in the background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a river channel ship draught detection device, comprising a mounting frame, a locking bolt is penetrated and mounted at one end of the bottom of the mounting frame, a positioning square bucket is fixed at the top of the other end of the mounting frame, a servo motor is fixed on the inner wall of the positioning square bucket, and a driving gear is mounted on the output shaft of the servo motor.

[0006] The driving gear is connected with the side surface of the detection plate, the detection plate penetrates the upper stabilizing sleeve, the upper stabilizing sleeve is fixedly installed at the other end of the mounting frame, the detection plate penetrates the lower stabilizing sleeve, the lower stabilizing sleeve is fixedly installed on the top surface of the floating plate, the bottom side surface of the detection plate is attached to the end of the resistance reducing pulley, and the resistance reducing pulley is rotatably installed on the inner wall of the lower stabilizing sleeve.

[0007] A reading camera and a transparent protective cover are fixedly installed on one side of the bottom surface of the floating plate, the transparent protective cover is arranged on the outer side of the reading camera, a counterweight is fixedly installed on the other side of the bottom surface of the floating plate, a protective net is fixedly installed at the bottom end of the detection plate below the floating plate, a laser range finder is fixedly installed in the protective net, and a ranging window is formed in one side of the protective net.

[0008] Preferably, the front view shape of the mounting frame is "F" type, and the locking bolts are symmetrically installed at the bottom of one end of the mounting frame.

[0009] Preferably, the driving gear is meshingly connected with the tooth convex structures densely arranged on the side surface of the detection plate, and the driving gears are horizontally and symmetrically distributed about the center of the detection plate.

[0010] Preferably, the length of the lower stabilizing sleeve in plan view is less than the radius of the floating plate, and a drag-reducing pulley is symmetrically mounted on the inner wall of the lower stabilizing sleeve.

[0011] Preferably, the reading camera and the transparent protective cover are symmetrically distributed about the center of the floating plate, and the mass of the reading camera and the transparent protective cover is equal to the mass of the counterweight.

[0012] Preferably, the protective net is made of fine stainless steel wire mesh, the protective net is provided in a hollow spherical shape, and the outer diameter of the protective net is greater than the width of the rectangular window in the center of the floating plate.

[0013] The inland waterway ship draft detection device has the following beneficial effects:

[0014] The novel structure design is used to position the lowest end position of the ship by means of laser ranging, and cooperates with the floating plate and the monitoring device, so that the ship draft depth can be directly detected in various environments without manual observation, and the accuracy is higher and the safety is higher.

[0015] 1. The device is stably installed as a whole by the mounting frame and the locking bolt, and the detection plate is stably driven by the servo motors and the drive gears which are symmetrically distributed in the positioning square bucket, and cooperates with the upper stabilizing sleeve to ensure that the detection plate can stably vertically move.

[0016] 2. The drag-reducing pulley is used to ensure that the friction between the lower stabilizing sleeve and the floating plate and the detection plate is small, so that the floating plate can stably float on the water surface, and the laser range finder is used to measure the bottom end position of the ship, and when the laser range finder has no reading, the scale on the detection plate which is aligned with the bottom surface of the floating plate collected by the reading camera is the draft depth. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 It is a front view structural schematic diagram of the present application.

[0019] Figure 2 It is a structural schematic diagram of the present application.

[0020] Figure 3 It is a front view sectional structural schematic diagram of the positioning square bucket and the upper stabilizing sleeve of the present application.

[0021] Figure 4 is a front view of the sectional structure of the stabilizing sleeve, the floating plate and the protective net of the utility model;

[0022] Figure 5 is a top view of the detection plate, the lower stabilizing sleeve and the floating plate of the utility model.

[0023]

Main component symbol explanation

[0024] 1, mounting frame; 2, locking bolt; 3, positioning square bucket; 4, servo motor; 5, drive gear; 6, detection plate; 7, upper stabilizing sleeve; 8, lower stabilizing sleeve; 9, floating plate; 10, resistance reduction pulley; 11, reading camera; 12, transparent protective cover; 13, counterweight; 14, protective net; 15, laser range finder; 16, ranging window. DETAILED DESCRIPTION

[0025] The inland waterway ship draft detection device of the utility model will be further explained in detail below in combination with the drawings and the embodiments of the utility model.

[0026] It should be noted that the embodiments and the features in the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0027] It should be noted that the terms used herein are only for describing the specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.

[0028] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not necessarily limit to those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0029] For the purposes of this description, spatially relative terms such as "beneath", "below", "lower", "above", "upper" and the like can be used to describe one element's or feature's relationship to another element or feature as illustrated in the figures. It will be understood that spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if a device in the figures is inverted, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the example term "below" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0030] Referring to Figures 1-5 The utility model provides a technical scheme: a kind of inland waterway ship draft detection device, including mounting bracket 1, locking bolt 2, positioning square bucket 3, servo motor 4, driving gear 5, detection plate 6, upper stabilizing sleeve 7, lower stabilizing sleeve 8, float plate 9, resistance reduction pulley 10, reading camera 11, transparent protective cover 12, counterweight 13, protective net 14, laser range finder 15 and range window 16, locking bolt 2 is installed in one end bottom of mounting bracket 1 and penetrates, the other end top of mounting bracket 1 is fixed with positioning square bucket 3, servo motor 4 is fixed on the inner wall of positioning square bucket 3, driving gear 5 is installed on the output shaft of servo motor 4;

[0031] driving gear 5 is connected with the side of detection plate 6, detection plate 6 penetrates upper stabilizing sleeve 7, upper stabilizing sleeve 7 is fixedly installed at the other end of mounting bracket 1, detection plate 6 penetrates lower stabilizing sleeve 8, lower stabilizing sleeve 8 is fixedly installed on the top surface of float plate 9, the side surface of detection plate 6 bottom is pasted with resistance reduction pulley 10 tail end, resistance reduction pulley 10 is rotatably installed on the inner wall of lower stabilizing sleeve 8;

[0032] reading camera 11 and transparent protective cover 12 are fixedly installed on the bottom side of float plate 9, transparent protective cover 12 is arranged outside reading camera 11, counterweight 13 is fixedly installed on the other side of the bottom of float plate 9, protective net 14 is fixedly installed at the bottom end of detection plate 6 below float plate 9, laser range finder 15 is fixedly installed in protective net 14, range window 16 is formed in one side of protective net 14.

[0033] The front view shape of mounting bracket 1 in the example is "F" type, locking bolt 2 is symmetrically installed at the bottom of one end of mounting bracket 1, and the above structure design enables the device to be quickly and stably installed on the ship side of ship.

[0034] In this example, the drive gear 5 meshes with the densely arranged toothed protrusion structure on the side of the detection plate 6. The drive gear 5 is horizontally symmetrical about the center of the detection plate 6. The above structural design enables the drive gear 5 to stably drive the detection plate 6 to move vertically when rotating.

[0035] In this example, the top-view length of the lower stabilizing sleeve 8 is less than the radius of the float 9. The drag-reducing pulleys 10 are symmetrically installed on the inner wall of the lower stabilizing sleeve 8. The above structural design ensures that the buoyancy of the float 9 is sufficient, and the friction between the lower stabilizing sleeve 8, the float 9 and the detection plate 6 is small, which greatly reduces the impact of the rise and fall of the detection plate 6 on the float 9.

[0036] In this example, the reading camera 11 and the transparent protective cover 12 are symmetrically distributed with respect to the center of the float 9 with respect to the counterweight 13. The sum of the masses of the reading camera 11 and the transparent protective cover 12 is equal to the mass of the counterweight 13. The above structural design ensures the balance of the float 9 and prevents the reading camera 11, the transparent protective cover 12 and the counterweight 13 from affecting the normal operation of the float 9 and the detection plate 6.

[0037] In this example, the protective net 14 is made of fine stainless steel wire mesh. The protective net 14 is set as a hollow sphere. The outer diameter of the protective net 14 is larger than the width of the central rectangular window of the float 9. The above structural design can prevent the detection plate 6 from separating from the float 9 and can provide stable protection for the laser rangefinder 15.

[0038] Working principle: During installation, Figure 2 The left end of the mounting bracket 1 is clamped on the ship's hull. The symmetrically distributed locking bolts 2 are pressed and fixed on the inside and outside of the hull. When the draft is detected, the symmetrically distributed servo motors 4 are controlled to synchronously drive the symmetrically distributed drive gears 5 to rotate in opposite directions at the same speed. The drive gears 5 drive the detection plate 6 to slide vertically down along the upper stabilizing sleeve 7.

[0039] The float 9 moves down with the detection plate 6. After the float 9 contacts the water surface, it floats on the water surface. The detection plate 6 continues to move down smoothly under the action of the drag-reducing pulley 10. At the same time, the laser rangefinder 15 is activated to monitor the distance between the bottom of the detection plate 6 and the underwater part of the ship in real time. When the reading of the laser rangefinder 15 suddenly disappears, that is, when the position of the laser rangefinder 15 at the bottom of the detection plate 6 just passes the bottom of the underwater part of the ship, the value read by the reading camera 11 at the bottom of the float 9 and the scale on the detection plate 6 is the distance from the bottom of the ship to the water surface, that is, the draft of the ship.

[0040] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.

Claims

1. An inland waterway vessel draft detection device, characterized by, The utility model relates to a kind of reading device for laser ranging, including: Mounting frame (1), locking bolt (2) is passed through and mounted at one end bottom of the mounting frame (1), positioning square bucket (3) is fixed at the other end top of the mounting frame (1), servo motor (4) is fixed on the inner wall of the positioning square bucket (3), driving gear (5) is installed on the output shaft of the servo motor (4); The driving gear (5) is connected with the side of detection plate (6), the upper stabilizing sleeve (7) is fixedly installed at the other end of the mounting frame (1) and the detection plate (6) is passed through, the lower stabilizing sleeve (8) is fixedly installed on the top surface of float plate (9) and the detection plate (6) is passed through, the bottom side of the detection plate (6) is attached to the end of resistance reduction pulley (10), and the resistance reduction pulley (10) is rotatably installed on the inner wall of the lower stabilizing sleeve (8); The bottom surface of the float plate (9) is fixedly installed with reading camera (11) and transparent protective cover (12) on one side, the transparent protective cover (12) is arranged outside the reading camera (11), the bottom surface of the float plate (9) is fixedly installed with counterweight (13) on the other side, the bottom end of the detection plate (6) below the float plate (9) is fixedly installed with protective net (14), the protective net (14) is fixedly installed with laser range finder (15) inside, and ranging window (16) is formed in one side of the protective net (14).

2. The device for detecting the draft of an inland waterway vessel according to claim 1, characterized in that: The front view shape of the mounting frame (1) is "F” type, and the locking bolt (2) is symmetrically installed at one end bottom of the mounting frame (1).

3. The device for detecting the draft of an inland waterway vessel according to claim 1, characterized in that: The driving gear (5) is engagedly connected with the densely arranged tooth convex structures on the side of the detection plate (6), and the driving gear (5) is horizontally symmetrically distributed about the center of the detection plate (6).

4. The device for detecting draft of an inland waterway vessel according to claim 1, characterized in that: The length of the lower stabilizing sleeve (8) in plan view is less than the radius of the float plate (9), and the resistance reduction pulley (10) is symmetrically installed on the inner wall of the lower stabilizing sleeve (8).

5. The device for detecting draft of an inland waterway vessel according to claim 1, characterized in that: The reading camera (11) and the transparent protective cover (12) are symmetrically distributed about the center of the float plate (9) with the counterweight (13), and the sum of the mass of the reading camera (11) and the transparent protective cover (12) is equal to the mass of the counterweight (13).

6. The device for detecting draft of an inland waterway vessel according to claim 1, characterized in that: The protective net (14) is made of fine stainless steel wire mesh, the protective net (14) is arranged as hollow spherical shape, and the outer diameter of the protective net (14) is greater than the width of the central rectangular window of the float plate (9).