Pull rope type superelevation detection device suitable for ship lock
By using a rope-type over-height detection device, which utilizes the physical contact between the rope and the over-height section of the ship and a laser rangefinder to sense the displacement of the slider, the problem of decreased accuracy in ship over-height detection under adverse weather conditions and high maintenance costs of traditional devices is solved, achieving detection results with high sensitivity, low cost and easy maintenance.
Patent Information
- Application Number
- CN202423071999.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-12
AI Technical Summary
Existing methods for detecting excessive height of ships suffer from reduced accuracy under adverse weather conditions, and traditional physical contact detection devices are complex in structure and have high maintenance costs, making it difficult to meet the safety requirements for lock navigation.
The device employs a rope-type over-height detection system. By physically contacting the over-height section of the ship, the rope undergoes mechanical stress deformation. Combined with a laser rangefinder sensor to detect the displacement of the slider, it achieves accurate detection and alarm.
It improves the sensitivity and reliability of detection, reduces equipment costs, avoids the decrease in accuracy caused by severe weather, and has a simple structure that is easy to maintain.
Smart Images
Figure CN223597897U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to ship navigation safety technical field, concretely is a kind of pull rope type overheight detection device suitable for ship lock. BACKGROUND
[0002] The overheight detection of ship is an important link in the navigation management of ship lock, especially in the navigation area with strict height limit in some ship locks. The overheight detection of ship can timely find the overheight ship, prevent it from colliding with the bridge, the top of ship lock gate or other facilities, so as to effectively protect the safety of ship lock facilities and ship. The mainstream overheight detection method of ship mainly includes laser ranging, radar detection and photoelectric sensing.
[0003] At present, although the methods such as laser ranging, radar detection and photoelectric sensing have certain advantages in accuracy and response speed, the installation cost of equipment is high, the maintenance is complex, and it is greatly affected by environment. For example, under the conditions of heavy fog, rain and snow or strong light, the laser and radar signals may be disturbed, resulting in the decrease of detection accuracy. In addition, the traditional method has poor adaptability to the complex shape of the overheight part of ship, and the missed detection or false alarm may easily occur, for example, the missed detection of the thin mast or flagpole at the top of ship often occurs.
[0004] On the other hand, although some physical contact type detection methods are stable and reliable, they have complex structure, high maintenance difficulty, high maintenance cost after damage, and are difficult to meet the actual needs. CONTENT OF THE UTILITY MODEL
[0005] To solve the existing technical problems, the main purpose of the utility model is to provide a pull rope type overheight detection device suitable for ship lock. The device makes the pull rope produce mechanical stress deformation through the physical contact between the pull rope and the overheight part of ship, drives the sliding block to move, and uses the laser ranging sensor to sense the displacement of sliding block, so as to realize the accurate detection and alarm of overheight ship. Compared with the traditional detection method, the detection device can significantly improve the sensitivity and reliability of detection, and avoid the decrease of accuracy caused by bad weather in the methods such as laser and radar detection. Moreover, the detection device can be well applied to ship lock passage, has the advantages of convenient installation, reliable detection, sensitive alarm and low cost.
[0006] In order to realize the above technical features, the purpose of the utility model is realized as follows: a pull rope type overheight detection device suitable for ship lock, including symmetrically arranged mounting columns, the upper part of one of the mounting columns is fixedly installed with a pull rope limiting device, a sliding plate inside the pull rope limiting device is connected with a pull rope, the other end of the pull rope spans the ship lock passage and is connected to the mounting column on the other side, and the pull rope is used for sensing the height of ship and can be pulled by the ship when overheight.
[0007] The detection device is connected with the alarm device through a wired / wireless communication module.
[0008] The installation height of the pull rope is determined according to the limited height of the ship lock channel, and the pull rope is suspended laterally at the predetermined limited height.
[0009] The pull rope is made of light and low-elastic polyester thread.
[0010] The pull rope limiting device comprises a box body, a guide rail groove is arranged in the box body, a guide rail is arranged at the middle part of the guide rail groove, a sliding block is slidingly installed on the guide rail, a sliding plate is arranged at the top end of the sliding block, a first limiting block is arranged at one end of the guide rail groove, a second limiting block is arranged at the other end of the guide rail groove, and a spring is arranged between the first limiting block and the sliding block.
[0011] A plurality of connecting holes for connecting the pull rope are arranged on the sliding plate.
[0012] In the normal use state, the spring is in a stretched state to maintain the tension of the pull rope, when the pull rope is collided, the displacement of the pull rope drives the sliding block to displace along the guide rail groove, and when the pull rope is broken, the spring is contracted to drive the sliding block to reversely displace.
[0013] The detection device comprises an L-shaped mounting plate fixed at the end of the guide rail groove, a laser ranging sensor is mounted on the L-shaped mounting plate, the laser ranging sensor is matched with the sliding block and detects the displacement data of the sliding block, the laser ranging sensor is connected with the signal input end of the controller through a data line, and the signal output end of the controller is connected with the alarm device through the wired / wireless communication module.
[0014] The position of the sliding block in the guide rail groove has three state information of pull rope breakage, normal and overheight.
[0015] The pull rope limiting device has the following beneficial effects:
[0016] 1. Simple and reliable: the detection is realized by mechanical triggering indoor short-distance laser ranging, the detection is stable and reliable, and the arrangement position of the laser ranging sensor further guarantees the detection stability and the service life of the sensor. Meanwhile, the pull rope limiting device is designed, the overheight collision stress is isolated from the main detection and control part of the device, and the failure rate is low.
[0017] 2. Low cost and high efficiency: the device mainly comprises a polyester pull rope, a limiting device, a detection and alarm module, and the cost is much lower than that of a laser or radar detection device.
[0018] 3. Strong anti-interference: the physical triggering mode is not affected by environmental factors such as light, humidity and dust.
[0019] 4. Easy to maintain: simple structure, easy to install, disassemble and maintain, the mechanical structure design of the pull rope limiting unit makes the control module can sense the fracture situation and remind the maintenance personnel to handle in time after the pull rope is broken, the daily maintenance only needs to replace the broken pull rope according to the alarm condition, and the maintenance cost is low.
[0020] 5. Strong flexibility: the corresponding relationship between the position of the sliding block in the pull rope limiting unit and the three states can be modified in the control module according to the actual situation, and the length and installation height of the pull rope can be adjusted according to the width of the ship lock and the height limiting requirement, which is suitable for different types of ship locks and has strong flexibility. BRIEF DESCRIPTION OF DRAWINGS
[0021] The utility model will be further described below in combination with the drawings and embodiments.
[0022] Figure 1 The whole structure of the utility model
[0023] Figure 2 The three-dimensional drawing of the pull rope limiting device, detection device and alarm device of the utility model.
[0024] Figure 3 The first perspective three-dimensional drawing of the pull rope limiting device of the utility model.
[0025] Figure 4 The second perspective three-dimensional drawing of the pull rope limiting device of the utility model.
[0026] Figure 5 The three state diagrams of the utility model.
[0027] In the drawing: stand 1, pull rope 2, pull rope limiting device 3, wired / wireless communication module 4, detection device 5, alarm device 6;
[0028] Box body 301, guide rail groove 302, spring 303, first limiting block 304, sliding block 305, connecting hole 306, sliding plate 307, guide rail 308, second limiting block 309;
[0029] L-shaped mounting plate 501, laser ranging sensor 502, controller 503. DETAILED DESCRIPTION
[0030] The embodiments of the utility model will be further described below in combination with the drawings.
[0031] Embodiment 1:
[0032] Referring to Figures 1-5The utility model relates to a kind of pull rope type overhigh detection device suitable for ship lock, including symmetrically arranged installation column 1, wherein the upper portion of one installation column 1 is fixedly installed with pull rope limiting device 3, pull rope limiting device 3 inside sliding plate 307 is connected with pull rope 2, the other end of pull rope 2 straddles ship lock channel and is connected in the installation column 1 of other side, pull rope 2 is used to sense the height of ship and can be pulled by ship when overhigh;Detection device 5 for detecting the displacement of sliding plate 307 is cooperatively installed on pull rope limiting device 3, and detection device 5 is connected with alarm device 6 by wired / wireless communication module 4.By using the above-mentioned device, the physical contact between pull rope and overhigh part of ship makes pull rope produce mechanical stress deformation, drives sliding plate 307 to move, and the displacement condition of slider is sensed using detection device 5, to realize accurate detection and alarm of overhigh ship.
[0033] Further, the installation height of the pull rope 2 is determined according to the limit height of the ship lock channel, and is suspended laterally at the predetermined limit height. Thus, the purpose of limiting the height of the ship channel is achieved.
[0034] Further, the pull rope 2 is made of lightweight low-elastic polyester thread. The weight is reduced to avoid sagging, and the low-elastic nylon rope can also effectively transmit the stress of the pull rope.
[0035] Further, the pull rope limiting device 3 includes a box body 301, the inside of the box body 301 is provided with a guide rail groove 302, the middle part of the guide rail groove 302 is provided with a guide rail 308, the guide rail 308 is slidingly installed with a sliding block 305, the sliding plate 307 is arranged at the top end of the sliding block 305, one end of the guide rail groove 302 is provided with a first limiting block 304, the other end of the guide rail groove 302 is provided with a second limiting block 309, and the first limiting block 304 and the sliding block 305 are provided with a spring 303. The above-mentioned pull rope limiting device 3 can be used to sense the generation of overheight, and realize the sliding displacement of the sliding block 305 after the generation of overheight.
[0036] Further, the sliding plate 307 is provided with a plurality of connecting holes 306 for connecting the pull rope 2. The connecting holes 306 facilitate the connection of the pull rope 2.
[0037] Further, the spring 303 is in a stretched state to maintain the tension of the pull rope 2 in normal use state. When the pull rope 2 is collided, the displacement of the pull rope 2 drives the sliding block 305 to displace along the guide rail groove 302. When the pull rope 2 is broken, the spring contracts to drive the sliding block 305 to reversely displace. Thus, the spring 303 can sense different states of the pull rope 2 to determine whether overheight risk occurs.
[0038] Furthermore, the detection device 5 includes an L-shaped mounting plate 501 fixed to the end of the guide rail groove 302. A laser rangefinder sensor 502 is mounted on the L-shaped mounting plate 501. The laser rangefinder sensor 502 cooperates with the slider 305 and detects the displacement data of the slider 305. The laser rangefinder sensor 502 is connected to the signal input terminal of the controller 503 via a data cable 504. The signal output terminal of the controller 503 is connected to the alarm device 6 via a wired / wireless communication module 4. During operation, the laser rangefinder sensor 502 can acquire the position data of the slider in the pull rope limiting unit. The control module determines the position of the slider in the guide rail groove 302 based on the laser rangefinder sensor data.
[0039] Furthermore, the slider 305 has three status information within the guide rail groove 302: rope breakage (A), normal (B), and excessive height (C). The controller 503 can modify parameters to set the correspondence between the three status outputs and the slider position.
[0040] Example 2:
[0041] In one embodiment of a ship lock in China, this device is positioned upstream of the lock to detect whether a downstream vessel entering the lock exceeds its height limit. The arrangement is as follows: Figure 1 As shown, the main structure of the detection device includes a pull rope 2 suspended laterally in the lock channel. The pull rope is made of lightweight polyester material, using a 2.5 gauge polyester rope, which is lightweight and effectively withstands the mechanical stress transmitted by the ship's impact. One end of the pull rope is connected to a side column via a fixing device, which has an adjustment function to adjust the height and tension of the pull rope. The other end is connected to a pull rope limiting device 3.
[0042] As attached Figure 5 As shown, the pull rope is connected to the sliding plate 307, and the direction of the tension is along the stretching direction of the spring 303, as indicated in the attached diagram. Under normal conditions, the pull rope is taut, maintaining a certain tension, at which point the spring 303 is in a stretched state. Based on the slider's position on the guide rail, the system is roughly divided into three areas: the normal area, the pull rope breakage area, and the over-triggered area. The slider's position in these three areas represents the three states of the device, respectively.
[0043] When the ship is hit by the over-height collision rope, the rope is subjected to mechanical stress, which causes the sliding plate 307 to move along the guide rail groove 302. The spring is continuously stretched. If the slider exceeds the normal range and reaches the over-height trigger area, the device will output an over-height alarm.
[0044] When the pull rope is caught by the superhigh part of the ship or is continuously stretched due to other reasons, the sliding plate 307 will reach the end of the guide rail groove 302, at which time the second limit block 309 will block the further sliding of the sliding block, and at this time, further stretching will cause the pull rope to be stressed and broken, so as to protect the core components from being damaged. After the pull rope is broken, the sliding block is no longer subjected to the pulling force of the pull rope, and the sliding block will slide in the opposite direction into the pull rope broken area under the action of the spring 204, at which time the device outputs a pull rope broken alarm according to the position of the sliding block to remind the maintenance personnel to replace the pull rope in time.
[0045] As Figure 2 , the position of the sliding block 305 in the guide rail is obtained by a laser ranging sensor, which is installed on the end side of the pull rope limiting unit guide rail and fixed by using an L-shaped mounting plate. The laser ranging sensor used in this embodiment is KEYENCE LR-X250xx, and the effective detection distance is 30mm~250mm. The core controller of the controller 503 is Siemens LOGO!6ED1052-1MD08-0BA2, the data of the laser ranging sensor is input into the controller as an analog quantity, and the controller outputs three switch quantity states of normal, superhigh and pull rope broken according to the ranging data. The switch quantity state is output to the remote IO module, and at the same time, the alarm device 6 also uses the remote IO module to receive the alarm signal and outputs the sound and light alarm in the form of a buzzer and an alarm lamp. In this example, the remote IO transmits the module using a pair of Haikong Electrical HK-FKGD40-PA wireless transmission switches, which use LoRa communication and support 4-way switch quantity intercommunication.
[0046] In actual application, the pull rope senses the superhigh of the ship through collision stress deformation, and converts the stress into the movement of the sliding block through the pull rope limiting unit. The detection and alarm unit senses the movement of the sliding block on site, processes data on site and outputs an alarm signal, and the staff remotely receives the alarm signal and takes measures. At the same time, the staff can modify the corresponding relationship between the three states and the position of the sliding block through the LOGO! display interface.
[0047] The working process and principle of the utility model:
[0048] When the ship enters the ship lock channel and the height exceeds the preset limit, the top of the ship touches the pull rope, the pull rope is pulled to produce stress deformation, and then the pull rope limiting unit slider is moved. The laser ranging sensor senses the movement state of the slider and outputs data to the control module. The control module outputs an alarm signal according to the data output, and the alarm module issues an audible and visual alarm to remind the staff to handle the overheight ship. When the pull rope is hung by the overheight part of the ship or other conditions cause excessive stretching, the pull rope limiting unit slider moves to the end of the guide rail groove and is blocked by the limiting block, the pull rope is broken under stress, at this time the spring loses the pull rope tension and restores to the original length, the slider moves reversely and exceeds the normal state area, the laser ranging sensor obtains the slider position information, the control module outputs the pull rope breakage alarm, and reminds the staff to replace the pull rope in time.
Claims
1. A rope-pulling type overheight detection device suitable for a ship lock, characterized in that, The application relates to a ship lock height limit device, which comprises symmetrically arranged mounting columns (1), wherein the upper part of one mounting column (1) is fixedly provided with a pull rope limiting device (3), a sliding plate (307) in the pull rope limiting device (3) is connected with a pull rope (2), the other end of the pull rope (2) is horizontally arranged across a ship lock channel and is connected to the mounting column (1) on the other side, and the pull rope (2) is used for sensing the height of a ship and can be pulled by the ship when the height is too high. A detection device (5) for detecting the displacement of the sliding plate (307) is arranged on the pull rope limiting device (3) in a matched mode, and the detection device (5) is connected with an alarm device (6) through a wired / wireless communication module (4).
2. The rope-pulling type overheight detection device for a ship lock according to claim 1, characterized in that: The installation height of the pull rope (2) is determined according to the limited height of the ship lock channel, and the pull rope (2) is horizontally hung at the predetermined limited height.
3. The rope-pulling type overheight detection device for a ship lock according to claim 1, characterized in that: The pull rope (2) is made of light and low-elastic polyester thread.
4. The rope-pulling type overheight detection device for a ship lock according to claim 1, characterized in that: The pull rope limiting device (3) comprises a box body (301), the inside of the box body (301) is provided with a guide rail groove (302), the middle part of the guide rail groove (302) is provided with a guide rail (308), the guide rail (308) is slidably provided with a sliding block (305), the sliding plate (307) is arranged at the top end of the sliding block (305), one end of the guide rail groove (302) is provided with a first limiting block (304), the other end of the guide rail groove (302) is provided with a second limiting block (309), and the first limiting block (304) and the sliding block (305) are provided with a spring (303) therebetween.
5. The rope-pulling type super-high detection device for a ship lock according to claim 4, characterized in that: A plurality of connecting holes (306) for connecting the pull rope (2) are arranged on the sliding plate (307).
6. The rope-pulling type super-high detection device for a ship lock according to claim 4, characterized in that: In a normal use state, the spring (303) is in a stretched state to maintain the tension of the pull rope (2), when the pull rope (2) is collided, the displacement of the pull rope (2) drives the sliding block (305) to displace along the guide rail groove (302), and when the pull rope (2) is broken, the spring is contracted to drive the sliding block (305) to reversely displace.
7. The rope-pulling type super-high detection device for a ship lock according to claim 4, characterized in that: The detection device (5) comprises an L-shaped mounting plate (501) fixed at the end of the guide rail groove (302), the L-shaped mounting plate (501) is provided with a laser ranging sensor (502), the laser ranging sensor (502) is matched with the sliding block (305) and detects the displacement data of the sliding block (305), the laser ranging sensor (502) is connected with the signal input end of a controller (503) through a data line (504), and the signal output end of the controller (503) is connected with the alarm device (6) through the wired / wireless communication module (4).
8. The rope-pulling type super-high detection device for a ship lock according to claim 4, characterized in that: The position of the sliding block (305) in the guide rail groove (302) has three state information of pull rope breakage (A), normality (B) and overheight (C).