Intelligent trolley for detecting electric leakage of underground cable

Abstract

The utility model discloses an intelligent trolley for detecting underground cable leakage, which comprises an electricity measuring unit for detecting earth surface voltage, the electricity measuring unit can detect the earth surface voltage when the trolley runs on the ground, the electricity measuring unit is provided with two groups of electricity measuring arms, and the two groups of electricity measuring arms are respectively used for detecting the earth surface voltage on two sides of the trolley; moving detection of earth surface voltage is achieved by means of driving of the trolley, the risk of electric shock of personnel is reduced, and the efficiency is higher compared with manual detection. Meanwhile, the two groups of electricity measuring arms respectively detect the earth surface voltage at the two sides of the trolley, and the direction of the leakage power source can be judged according to the earth surface voltage at the two sides of the trolley, so that the purpose of finding the position of the leakage power source can be more effectively achieved.

Description

Technical Field

[0001] The utility model relates to an intelligent vehicle for detecting the leakage of underground cables. Background Art

[0002] Underground cables refer to cables buried underground in electrical equipment such as power communication. Laying them underground can help maintain the beauty of the ground surface. However, various factors such as rainwater intrusion, soil corrosion, animal gnawing, and insulation layer aging may cause underground cable leakage.

[0003] Especially in places where people gather, such as schools and communities, underground cable leakage poses a great safety hazard. Therefore, it is necessary to find the leakage source in time and carry out repairs.

[0004] However, the current means of detecting underground cable leakage sources mainly rely on manual detection tools held by humans. This not only has low efficiency but also poses a risk of electric shock to the detection personnel. Content of the Utility Model

[0005] The purpose of the utility model is to provide a technical solution for an intelligent vehicle for detecting the leakage of underground cables in view of the deficiencies of the existing technology. It can not only move and detect the surface voltage by relying on the driving of the vehicle, reducing the risk of electric shock to personnel, but also detect the surface voltages on both sides of the vehicle respectively, and judge the direction of the leakage source according to the levels of the surface voltages on both sides of the vehicle, so as to achieve the purpose of finding the position of the leakage source.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] An intelligent vehicle for detecting the leakage of underground cables, comprising

[0008] An electric measurement unit for detecting the surface voltage;

[0009] A vehicle for traveling on the ground;

[0010] The electric measurement unit is connected to the vehicle. During the driving of the vehicle, the electric measurement unit can detect the surface voltage in real time. The electric measurement unit is provided with two electric measurement arms, and the two electric measurement arms are respectively used for detecting the surface voltages on both sides of the vehicle.

[0011] By adopting the above technical solutions, the mobile detection of the surface voltage is realized by relying on the driving of the vehicle, reducing the risk of electric shock to personnel and having higher efficiency compared with manual detection. At the same time, the two electric measurement arms respectively detect the surface voltages on both sides of the vehicle, and the direction of the leakage source can be judged according to the levels of the surface voltages on both sides of the vehicle, so as to more effectively achieve the purpose of finding the position of the leakage source.

[0012] Further, the trolley is provided with a control unit which can control the traveling direction of the trolley according to the ground voltage levels on both sides of the trolley.

[0013] Further, the control unit is detachably installed in the trolley, and the trolley is provided with an end cover movably connected thereto.

[0014] Further, the trolley is provided with two driving wheels on the left and right, and the two driving wheels are respectively connected with driving motors. The control unit can control the two driving motors respectively, and the trolley can be steered by controlling the stop of a single driving motor.

[0015] Further, a driven wheel capable of steering is provided at the bottom of the front side of the trolley.

[0016] Further, an antenna is provided on the top of the trolley, and the antenna is connected to the control unit for data transmission.

[0017] Further, an information sign is provided on the top of the trolley. The information sign is used to display the information of the trolley; the information sign shields the front side of the antenna.

[0018] Further, both groups of electric measuring arms are connected with extension wires. One end of the extension wire is connected with a conductor, and the conductor is used for contacting the ground for conducting electricity. The conductor is communicated with the electric measuring arm through the extension wire.

[0019] Further, mounting holes are provided on both sides of the trolley, and the electric measuring arm is movably connected with the trolley through the mounting holes.

[0020] Further, the electric measuring arm and the mounting hole are in interference fit.

[0021] The utility model has the following beneficial effects due to the adoption of the above technical solutions:

[0022] 1. The utility model can not only move to detect the ground voltage by relying on the driving of the trolley, but also detect the ground voltage levels on both sides of the trolley respectively, so as to achieve the purpose of finding the position of the leakage power source;

[0023] 2. The utility model can detect the ground voltage levels on both sides of the trolley and control the traveling direction of the trolley according to the detected ground voltage levels on both sides of the trolley;

[0024] 3. The utility model can effectively control the steering of the trolley by controlling the stop of the single-side driving wheel;

[0025] 4. The electric measuring arms of the utility model are all connected with extension guides, and the conductor at one end of the extension wire contacts the ground for conducting electricity, which can ensure that the conductor can also stably contact the ground to realize electric measurement on the uneven ground surface. Description of the Drawings

[0026] The present utility model will be further described below in conjunction with the accompanying drawings:

[0027] Figure 1 It is a schematic structural diagram of the intelligent vehicle of the present utility model;

[0028] Figure 2 It is a schematic structural diagram of the intelligent vehicle of the present utility model after the end cover is disassembled;

[0029] Figure 3 It is a schematic structural diagram of the intelligent vehicle of the present utility model from an oblique lower perspective;

[0030] Figure 4 It is a schematic structural diagram of the driving wheel of the present utility model;

[0031] Figure 5 It is a schematic structural diagram of the vehicle body of the intelligent vehicle of the present utility model;

[0032] Figure 6 It is a schematic structural diagram of the information sign of the present utility model;

[0033] In the figure: 1 - electric testing device; 11 - electric testing arm; 12 - extension wire; 13 - conductor;

[0034] 2 - vehicle body; 21 - ceiling; 22 - end cover; 23 - mounting hole; 24 - card slot;

[0035] 3 - driving wheel; 31 - driving motor; 4 - driven wheel; 41 - rotating shaft; 42 - wheel frame;

[0036] 5 - control unit; 6 - battery; 7 - information sign; 71 - clamping block; 8 - antenna. Specific embodiments

[0037] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0038] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0039] It should be noted that the terms "first", "second", etc. in the description, claims and above-mentioned drawings of the present utility model are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0040] Embodiment 1

[0041] An intelligent trolley for detecting the leakage of underground cables can detect the surface voltage during driving to find the leakage source position of the underground cables.

[0042] The intelligent trolley includes an electric measurement unit for detecting the surface voltage.

[0043] The electric measurement unit includes an electric measurement device 1 and an electric measurement arm 11.

[0044] In this embodiment, the electric measurement device 1 is specifically a measuring instrument, and the electric measurement arm is a multimeter test lead.

[0045] The electric measurement arm 11 can detect the surface voltage and feedback it to the electric measurement device 1.

[0046] The intelligent trolley is provided with a control unit 5, and the electric measurement device 1 is connected to the control unit 5 for data transmission.

[0047] In this embodiment, the electric measurement arm 11 includes two groups and is respectively arranged on the left and right sides of the trolley, as Figure 2 shown; the two groups of electric measurement arms 11 are respectively used to detect the surface voltage on the left and right sides of the trolley.

[0048] The surface voltage values detected by the two groups of electric measurement arms 11 will be fed back to the electric measurement device 1. After obtaining the surface voltage values on the left and right sides of the trolley, the electric measurement device 1 will send the high and low situations of the surface voltages on both sides to the control unit 5.

[0049] The control unit 5 can control the traveling direction of the trolley according to the high and low situations of the surface voltages on both sides of the trolley obtained.

[0050] In this embodiment, the trolley includes a vehicle body 2, and an accommodation space is formed inside the vehicle body 2, as Figure 2 shown;

[0051] A ceiling 21 is formed on the front side of the upper part of the vehicle body 2, and an end cover 22 detachably connected to the vehicle body 2 is provided on the rear side of the upper part of the vehicle body 2, as Figure 1 , Figure 2 shown;

[0052] In this embodiment, the electric measurement device 1 is placed in the accommodation space of the vehicle body 2, as Figure 2 shown;

[0053] In this embodiment, the control unit 5 is placed in the accommodation space of the vehicle body 2, as Figure 2 shown;

[0054] In this embodiment, a battery 6 is placed in the accommodation space of the vehicle body 2. The battery 6 is electrically connected to each device included in the trolley and is used to supply power to each device;

[0055] The end cover 22 covers the vehicle body 2 and can protect the devices in the accommodation space. By opening the end cover 22, it is convenient to repair or replace each device;

[0056] In this embodiment, the end cover 22 is detachably connected to the vehicle body 2 by bolts.

[0057] Extension wires 12 are connected to the ends of both groups of electroprobe arms 11. One end of the extension wire 12 is connected to a conductor 13, as Figures 1 to 3 shown;

[0058] The conductor 13 is connected to the electroprobe arm 11 through the extension wire 12. The conductor 13 dragged by the extension wire 12 can effectively contact the ground for conduction. In this way, even if the ground is uneven, the conductor 13 can stably contact the ground to detect the surface voltage.

[0059] In this embodiment, mounting holes 23 are provided on both sides of the ceiling 21, as Figure 5 shown;

[0060] The mounting holes 23 are in interference fit with the electroprobe arms 11;

[0061] The electroprobe arms 11 are inserted into the mounting holes 23 in a mating manner, and the electroprobe arms 11 can be stably connected to the left and right sides of the vehicle body 2.

[0062] The trolley is provided with two left and right drive wheels 3, as Figure 3 shown;

[0063] Each drive wheel 3 is connected to a drive motor 31, as Figure 3 , Figure 4 shown;

[0064] The drive motor 31 is fixed to the bottom of the vehicle body 2. This is only a preferred embodiment. In other embodiments, the drive motor 31 can also be fixed in the accommodation space of the vehicle body 2;

[0065] The drive wheels 3 are located on the left and right sides of the vehicle body 2, as Figure 3 shown;

[0066] The drive motor 31 is controlledly connected to the control unit 5, and the control unit 5 can separately control the two drive motors 31;

[0067] During the driving process of the trolley, the control unit 5 separately controls the left driving motor 31 to stop, and the left driving wheel 3 is locked, then the trolley can turn left; the control unit 5 separately controls the right driving motor 31 to stop, and the right driving wheel 3 is locked, then the trolley can turn right;

[0068] A driven wheel 4 that can be steered is provided on the front side of the bottom of the vehicle body 2;

[0069] The steerable driven wheel 4 ensures that the trolley can stably turn left and right;

[0070] Specifically, the driven wheel 4 is located at the bottom of the vehicle body 2, and the driven wheel 4 is rotatably connected to the wheel frame 42 through a wheel axle, as Figure 3 shown;

[0071] The wheel frame 42 is connected to the vehicle body 2 through a rotating shaft 41, as Figure 3 shown;

[0072] Under the action of the rotating shaft 41, the driven wheel 4 can be steered.

[0073] The working principle of this intelligent trolley is as follows:

[0074] When the underground cable leaks electricity, the closer to the leakage source, the higher the surface voltage, and the farther from the leakage source, the lower the surface voltage;

[0075] After the intelligent trolley runs, it travels under the drive of the driving wheel 3. The electric measurement arms 11 on both sides of the front end of the vehicle body 2 receive the surface voltage through the conductor 13, and feed back the real-time detected surface voltage value to the electric measurement device 1. The electric measurement device 1 sends the high and low conditions of the surface voltage on the left and right sides to the control unit 5;

[0076] The control unit 5 makes a judgment based on the high and low conditions of the surface voltage on the left and right sides of the trolley:

[0077] If the surface voltage on the left side of the trolley is higher than that on the right side, it means that the left side is closer to the leakage source, and the trolley needs to turn left; the control unit 5 will control the left driving motor 31 to stop, and the left driving wheel 3 will be locked, and the trolley will turn left;

[0078] If the surface voltage on the right side of the trolley is higher than that on the left side, it means that the right side is closer to the leakage source, and the trolley needs to turn right; the control unit 5 will control the right driving motor 31 to stop, and the right driving wheel 3 will be locked, and the trolley will turn right;

[0079] If the surface voltages on the left and right sides of the trolley are the same and non-zero, it means that the leakage source position is located, and the control unit 5 controls both the left and right driving motors 31 to stop, and both driving wheels 3 are locked, and the trolley stays in place.

[0080] In this embodiment, the control unit 5 is a programmable PLC main board;

[0081] In this embodiment, the PLC main board is provided with a remote communication module, and the remote communication module is signal-connected to the mobile terminal. The user can send instructions to the PLC main board or set the PLC main board through the mobile terminal;

[0082] The user sending control instructions to the PLC main board through the mobile terminal can be used as an auxiliary control means for the intelligent vehicle;

[0083] The PLC main board is connected with an antenna 8, and the antenna 8 can ensure the signal transmission between the remote communication module and the mobile terminal;

[0084] The antenna 8 is arranged on the top surface of the ceiling 21, as Figure 2 shown;

[0085] In this embodiment, a card slot 24 is opened on the top surface of the ceiling 21, as Figure 5 shown;

[0086] The antenna 8 is fixedly penetrated on a clamping block 71 that is in interference fit with the card slot 24, as Figure 6 shown;

[0087] Through the cooperation and clamping of the clamping block 71 and the card slot 24, the antenna 8 is installed on the vehicle body 2;

[0088] An information sign 7 is arranged on the top of the vehicle. The information sign 7 is used to display the information of the vehicle, such as stating that this vehicle is an intelligent vehicle for detecting the leakage of underground cables;

[0089] The information sign 7 is fixedly arranged on the top of the clamping block 71 and blocks the front side of the antenna 8, as Figure 6 shown; In this way, the aesthetics of the vehicle can be increased.

[0090] Embodiment 2

[0091] The difference between this embodiment and Embodiment 1 is that in this embodiment, the electric measuring device 1, the control unit 5, and the battery 6 are all detachably fixed in the accommodation space of the vehicle body 2 through buckles;

[0092] In this embodiment, the battery 6 includes a first battery and a second battery;

[0093] The first battery is 5V and is used to supply power to the drive motor 31;

[0094] The second battery is 24V and is used to supply power to the control unit 5;

[0095] In this embodiment, the end cover 22 and the vehicle body 2 are detachably connected through a snap-in and a slot;

[0096] The above are only specific embodiments of the present utility model, but the technical features of the present utility model are not limited thereto. Any simple changes, equivalent substitutions or modifications made on the basis of the present utility model to achieve substantially the same technical effects are all covered by the protection scope of the present utility model.

Claims

1. Intelligent vehicle for detecting underground cable leakage, including An electrical measuring unit, used to detect ground surface voltage; A trolley, for traveling on the ground; Features: The electrical measurement unit is connected to the trolley, and the electrical measurement unit can detect the ground surface voltage in real time during the driving of the trolley; the electrical measurement unit is provided with two sets of electrical measurement arms (11), and the two sets of electrical measurement arms (11) are respectively used to detect the ground surface voltage on both sides of the trolley.

2. The intelligent vehicle for detecting underground cable leakage according to claim 1 is characterized in that: The trolley is provided with a control unit (5), and the control unit (5) can control the direction of travel of the trolley according to the surface voltage level on both sides of the trolley.

3. The intelligent vehicle for detecting underground cable leakage according to claim 2 is characterized in that: The control unit (5) is detachably mounted in a trolley, and the trolley is provided with an end cover (22) movably connected thereto.

4. The intelligent vehicle for detecting underground cable leakage according to claim 2 is characterized in that: The trolley is provided with two left and right driving wheels (3), the two driving wheels (3) are respectively connected to driving motors (31), the control unit (5) can control the two driving motors (31) respectively, and the steering of the trolley can be achieved by controlling a single driving motor (31) to stop.

5. The intelligent vehicle for detecting underground cable leakage according to claim 4 is characterized in that: A driven wheel (4) capable of turning is provided at the front bottom of the trolley.

6. The intelligent vehicle for detecting underground cable leakage according to claim 2 is characterized in that: An antenna (8) is provided on the top of the trolley, and the antenna (8) is connected to the control unit (5) for data transmission.

7. The intelligent vehicle for detecting underground cable leakage according to claim 6 is characterized in that: An information sign (7) is provided on the top of the trolley, and the information sign (7) is used to display information about the trolley; The information sign (7) is shielded in front of the antenna (8).

8. The intelligent vehicle for detecting underground cable leakage according to claim 1 is characterized in that: The two groups of electrical measurement arms (11) are both connected to an extension wire (12), one end of the extension wire (12) is connected to a conductor (13), the conductor (13) is used to contact the ground for conducting electricity, and the conductor (13) is connected to the electrical measurement arm (11) via the extension wire (12).

9. The intelligent vehicle for detecting underground cable leakage according to any one of claims 1 to 8, characterized in that: Mounting holes (23) are provided on both sides of the trolley, and the electrical measurement arm (11) is movably connected to the trolley through the mounting holes (23).

10. The intelligent vehicle for detecting underground cable leakage according to claim 9 is characterized in that: The electrical measurement arm (11) and the mounting hole (23) are in interference fit.

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