Cable navigation clear height detection device during construction period of power transmission line crossing channel

Abstract

The utility model discloses a cable navigation clear height detection device for a power transmission line in a channel crossing construction period, which relates to the technical field of power transmission line identification and comprises a light waterproof laser ranging string ball movably mounted on the power transmission line and a ground warning facility. The two hemispheres are respectively a hollow upper hemisphere and a solid lower hemisphere, and the maximum cross section of the upper hemisphere and the maximum cross section of the lower hemisphere are respectively provided with a semicircular groove. The light-weight waterproof laser ranging string ball is installed on a power transmission line through the wire coil groove on the light-weight waterproof laser ranging string ball, and the lower hemisphere is a solid sphere and is heavier than the upper hemisphere, so that rays emitted by the laser ranging sensor at the bottom of the light-weight waterproof laser ranging string ball can be always perpendicular to the water surface of a channel, and the accuracy of measured data is guaranteed; data measured by the laser distance measuring sensor are transmitted to the signal receiver through the signal transmitter and are displayed through the LED display screen, and the data can be used for reminding passing ships on a navigation channel.

Description

TECHNICAL FIELD

[0001] The utility model relates to power transmission line identification technical field, concretely is a kind of cable navigation clearance detection device of power transmission line crossing channel construction period. BACKGROUND

[0002] With the high-speed development of economic society, power infrastructure is also accelerating construction, and the demand for power energy security of city is increasing, and the construction of power transmission and transformation project greatly improves the city power supply, but the intersection node of power project crossing or crossing channel also increases day by day.

[0003] In order to reduce the influence of power transmission line erection construction on channel navigation safety, generally, the method that primary guide rope is laid by multi-rotor aircraft unmanned aerial vehicle, and the primary guide rope is pulled by unmanned aerial vehicle to pass through the top of tower of laying section, and the primary guide rope is placed into the wheel groove of tower top sky pulley by tower high-altitude worker, and the operation of each tower is completed in turn. After laying, the unmanned aerial vehicle is returned and landed by ground remote control, and the primary guide rope is pulled by tensioning device to transition guide rope, guide rope, traction rope and guide wire, and finally the guide wire is pulled by increasing tensioning force, to complete the stringing construction crossing channel.

[0004] However, when the overhead line crosses wide channel and the ship flow is large, in the stage of opening construction channel and laying, the primary guide rope, guide rope, traction rope and guide wire are temporarily relaxed in the air above water surface due to gravity drag effect, which seriously threatens the ship navigation safety of engineering area, so temporary closure measures need to be taken in the upstream and downstream of the project before construction; after the guide wire is pulled into position, in order to shorten the closure time and reduce the influence of cable construction on navigation as much as possible, the clearance height between the lowest point of cable vertical arc and the highest navigation water level of channel can be controlled to be greater than the minimum allowable value specified in the specification, so that traffic control can be lifted and navigation can be restored; after the guide wire of each crossing section of the whole line is erected, the tensioning force is uniformly adjusted and increased to pull the cable to the design elevation.

[0005] During the laying process of overhead line construction, the vertical clearance between each guide wire and water surface is constantly changing, in order to prevent the guide wire from relaxing into water and causing material damage, it is necessary to display the vertical clearance in real time. After the guide wire is preliminarily pulled to lift the traffic control, in order to prevent water traffic safety accidents in adverse weather and during the navigation of over-height and over-width ships during high tide, it is necessary, critical and urgent to detect the navigation clearance value between the lowest point of cable vertical arc and the water surface of channel in real time, and the navigation clearance value should be informed to passing ships as much as possible to play a reminding and warning role. Therefore, the utility model provides a kind of cable navigation clearance detection device of power transmission line crossing channel construction period. CONTENT OF UTILITY MODEL

[0006] The technical problem solved by the utility model is to make up for the shortage of the prior art, and provide a cable navigation clearance detection device for a power transmission line crossing a waterway during construction.

[0007] In order to achieve the above object, the utility model provides the following technical scheme: a cable navigation clearance detection device for a power transmission line crossing a waterway during construction, comprising a light waterproof laser ranging string ball movably installed on the power transmission line and a ground warning facility, the light waterproof laser ranging string ball is installed on the power transmission line through a wire coil groove on the light waterproof laser ranging string ball, since the lower half is a solid ball, the weight of the lower half is greater than that of the upper half, so that the laser ranging sensor at the bottom of the light waterproof laser ranging string ball can always emit a ray vertical to the water surface of the waterway, ensuring the accuracy of the measurement data, the data measured by the laser ranging sensor is transmitted to a signal receiver through a signal transmitter and displayed on an LED display screen, which can be used to remind passing ships on the waterway, the device can detect the navigation clearance of the cable during construction in real time, is convenient to use and has high practicability.

[0008] The light waterproof laser ranging string ball is composed of two equal hemispheres, namely a hollow upper hemisphere and a solid lower hemisphere, a semicircular circular groove is formed on the maximum cross section of the upper hemisphere and the lower hemisphere respectively, the two semicircular circular grooves of the upper hemisphere and the lower hemisphere are combined into a wire coil groove, one side of the upper hemisphere and the lower hemisphere is connected together through a hinge, the other side of the upper hemisphere and the lower hemisphere is connected together through a closable and openable snap fastener, and a laser ranging sensor, a signal transmitter and a battery for providing electric energy for the laser ranging sensor and the signal transmitter are arranged at the bottom of the lower hemisphere.

[0009] The ground warning facility comprises a signal receiver for receiving the signal emitted by the signal transmitter, an LED display screen for displaying the data measured by the laser range finder and an overhead pipeline warning sign.

[0010] Preferably, the signal receiver, the LED display screen and the overhead pipeline warning sign are fixed on a support, and a storage battery and a solar panel for providing electric energy for the storage battery are arranged on the top of the support.

[0011] Preferably, the diameter of the wire coil groove is greater than the diameter of the electric wire of the power transmission line.

[0012] Preferably, the bottom of the support is fixed on the ground.

[0013] Preferably, the solid lower hemisphere is filled with heavy material.

[0014] Preferably, the laser ranging sensor is vertically embedded in the lower part of the lower hemisphere, and the ranging direction of the laser ranging sensor is vertical to the water surface of the waterway.

[0015] Beneficial effects: compared with the prior art, the power transmission line crossing channel construction period cable navigation clearance height detection device has the following beneficial effects:

[0016] The utility model discloses a light waterproof laser ranging string ball is installed on the power transmission line through the wire loop groove on it, because the lower hemisphere is solid ball, and its weight is greater than the upper hemisphere, can make the laser ranging sensor of light waterproof laser ranging string ball bottom emit the ray can always be perpendicular to the water surface of channel, guarantee the accurate measurement data, the data that laser ranging sensor measures is transferred to signal receiver through signal transmitter, and shows through LED display screen, can be used for reminding the ship that passes on the channel, the device can detect the net height of construction period cable navigation in real time, convenient to use, and the practicality is strong. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be briefly introduced the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description is only some embodiments of the utility model, and for ordinary skilled person in the art, under the premise of not paying the creativity labor, other drawings can also be obtained according to these drawings.

[0018] Figure 1 It is the structural schematic diagram of the utility model;

[0019] Figure 2 It is the structural schematic diagram of the light waterproof laser ranging string ball of the utility model;

[0020] Figure 3 It is the structural schematic diagram of the upper hemisphere of the utility model;

[0021] Figure 4 It is the structural schematic diagram of the lower hemisphere of the utility model;

[0022] Figure 5 It is the structural schematic diagram of the utility model's snap fastener;

[0023] Figure 6 It is the structural schematic diagram of the ground warning facility of the utility model.

[0024] In the drawing:

[0025] 1, light waterproof laser ranging string ball;101, upper hemisphere;102, lower hemisphere;103, semicircular circular groove;104, hinge;105, snap fastener;106, wire loop groove;107, laser ranging sensor;108, signal transmitter;109, battery;2, ground warning facility;201, signal receiver;202, LED display screen;203, overhead pipeline warning mark;204, support;205, solar panel. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0027] Please refer to Figures 1-6 The present application provides a technical solution: a kind of light waterproof laser ranging string ball 1 including movable installation on power transmission line, and ground warning facility 2.

[0028] The light waterproof laser ranging string ball 1 of the present application is composed of two equal hemispheres, which are hollow upper hemisphere 101 and solid lower hemisphere 102, respectively. A semicircular circular groove 103 is opened on the maximum cross section of the upper hemisphere 101 and the lower hemisphere 102, respectively. The two semicircular circular grooves 103 of the upper hemisphere 101 and the lower hemisphere 102 are combined into a wire coil groove 106. One side of the upper hemisphere 101 and the lower hemisphere 102 is connected together through a hinge 104. The other side of the upper hemisphere 101 and the lower hemisphere 102 is connected together through a releasable snap 105. The bottom of the lower hemisphere 102 is provided with a laser ranging sensor 107, a signal transmitter 108, and a battery 109 for providing power for the laser ranging sensor 107 and the signal transmitter 108.

[0029] The ground warning facility 2 of the present application includes a signal receiver 201 for receiving the transmitted signal of the signal transmitter 108, and an LED display screen 202 for displaying the data measured by the laser ranging sensor 107, and an overhead pipeline warning sign 203. The light waterproof laser ranging string ball 1 is installed on the power transmission line through the wire coil groove 106 thereon. Since the lower hemisphere 102 is a solid sphere, its weight is greater than that of the upper hemisphere 101, so that the rays emitted by the laser ranging sensor 107 at the bottom of the light waterproof laser ranging string ball 1 can always be perpendicular to the water surface of the channel, ensuring the accuracy of the measurement data. The data measured by the laser ranging sensor 107 is transmitted to the signal receiver 201 through the signal transmitter 108, and displayed on the LED display screen 202. It can be used to remind the passing ships on the channel. The device can detect the net height of the cable navigation during construction period in real time, is convenient to use, and has strong practicality.

[0030] Please refer to Figure 6 The signal receiver 201, the LED display screen 202 and the overhead pipeline warning sign 203 are fixed on the bracket 204. The bracket 204 is fixed to the ground at the bottom, and a solar panel 205 for providing power for the battery is installed at the top of the bracket 204.

[0031] Please refer to Figure 2 The diameter of the guide coil groove 106 is larger than the diameter of the electric wire of the power transmission line, the lower hemisphere 102 is filled with heavy material, and the laser ranging sensor 107 is vertically embedded in the lower part of the lower hemisphere, and the ranging direction is perpendicular to the water surface of the channel.

[0032] Working principle: the light waterproof laser ranging string ball 1 is installed on the power transmission line through the guide coil groove 106, since the lower hemisphere 102 is a solid ball, its weight is greater than that of the upper hemisphere 101, so that the laser ranging sensor 107 at the bottom of the light waterproof laser ranging string ball 1 can always emit a ray perpendicular to the water surface of the channel, ensuring the accuracy of the measurement data, the data measured by the laser ranging sensor 107 is transmitted to the signal receiver 201 through the signal transmitter 108, and displayed on the LED display screen 202, which can be used to remind the passing ships on the channel.

[0033] It should be noted that in this text, relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0034] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A device for detecting the navigation clearance of a cable of a power transmission line during the construction period of a crossing over a waterway, comprising a light waterproof laser ranging string ball (1) movably installed on the power transmission line, and a ground warning facility (2), characterized in that: the light waterproof laser ranging string ball (1) is composed of two equal hemispheres, i.e. a hollow upper hemisphere (101) and a solid lower hemisphere (102), a semicircular groove (103) is formed on the maximum cross section of each of the upper hemisphere (101) and the lower hemisphere (102), the two semicircular grooves (103) of the upper hemisphere (101) and the lower hemisphere (102) are combined into a wire coil groove (106), one side of the upper hemisphere (101) and the lower hemisphere (102) is connected together through a hinge (104), the other side of the upper hemisphere (101) and the lower hemisphere (102) is connected together through a clasp (105), the bottom of the lower hemisphere (102) is provided with a laser ranging sensor (107), a signal transmitter (108), and a battery (109) for providing power for the laser ranging sensor (107) and the signal transmitter (108); the ground warning facility (2) comprises a signal receiver (201) for receiving the signal transmitted by the signal transmitter (108), an LED display screen (202) for displaying the data measured by the laser ranging sensor (107), and an overhead pipeline warning sign (203). The signal receiver (201), the LED display screen (202), and the overhead pipeline warning sign (203) are fixed on a support (204), and a solar panel (205) for providing power for the battery is installed on the top of the support (204). The diameter of the wire coil groove (106) is greater than the diameter of the electric wire of the power transmission line.

2. The device for detecting the navigation clearance of the cable of the construction period of the crossing channel of the power transmission line according to claim 1, characterized in that: The bottom of the support (204) is fixed on the ground.

3. The device for detecting the navigation clearance of the power transmission line across the channel during the construction period according to claim 1, characterized in that: The solid lower hemisphere (102) is filled with heavy material.

4. The device for detecting the navigation clearance of the power transmission line across the channel during the construction period according to claim 2, characterized in that: The laser ranging sensor (107) is vertically embedded in the lower part of the lower hemisphere, and the ranging direction thereof is perpendicular to the water surface of the waterway.

5. The device for detecting the navigation clearance of the power transmission line across the channel during the construction period according to claim 1, characterized in that: ​ 6. The device for detecting the navigation clearance of the power transmission line across the channel during the construction period according to claim 1, characterized in that: ​

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