CN217455901U

CN217455901U - Intelligent grounding device for oil tank truck

Info

Publication number: CN217455901U
Application number: CN202220491350.2U
Authority: CN
Inventors: 高旭光; 王一; 陈小雯
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-07
Filing date: 2022-03-07
Publication date: 2022-09-20
Anticipated expiration: 2032-03-07

Abstract

An intelligent grounding device for an oil tank truck comprises a contact device, a grounding body, a resistance bridge module and a voltage comparison module, wherein the contact device is used for being connected with a grounding working surface of the oil tank truck; the output conversion module is used for carrying out signal conversion on a comparison result of the voltage comparison module, the output driving module is used for generating a driving signal based on a signal transmitted by the output conversion module, the sound-light alarm module is driven by the driving module to generate a sound-light alarm signal, and the power supply device is used for supplying power for the grounding device.

Description

Intelligent grounding device for oil tank truck

Technical Field

The utility model relates to an earthing device especially relates to an intelligent earthing device for tank wagon.

Background

Currently, in a gas station of a tank depot, electrostatic protection of the tank wagon during loading and unloading of oil has a drawback. Although the existing grounding means are respectively long, whether the grounding effect is reliable or not cannot be measured.

When the oil tank truck has no grounding working surface, or the equipment has long service life and the grounding effect is reduced, or impurities such as paint films, sludge and the like are accumulated on the grounding working surface, the resistance value exceeds the standard specified by the specification. At this time, the grounding effect is reduced, and the expected grounding effect cannot be achieved, thereby causing a potential safety hazard.

Therefore, technically, the existing grounding means cannot guarantee real and effective grounding every time. The accidents caused by static electricity have the characteristics of randomness, concealment and the like, and serious consequences can be caused by carelessness, so that a new grounding device needs to be designed to ensure the reliability and effectiveness of grounding every time, and the accidents caused by poor static grounding are avoided.

Disclosure of Invention

In order to solve at least one of the above technical problem, the utility model provides an intelligence earthing device for tank wagon, it has simplified the device structure when satisfying the effective ground connection of tank wagon, has ensured the security of tank wagon when loading and unloading fuel.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an intelligent grounding device for a tank truck, comprising:

the contact device comprises a first contact and a second contact, and the first contact and the second contact are used for being connected with a grounding working surface of the oil tank truck;

the grounding body is connected with the first contact or the second contact so that a grounding working line is formed among the grounding working surface, the first contact or the second contact and the grounding body when the first contact and the second contact are connected with the grounding working surface of the oil tank truck;

one end of the resistance bridge module is connected with the first contact, the other end of the resistance bridge module is connected with the grounding body, so that when the first contact and the second contact are connected with the grounding working surface of the oil tank truck, a closed loop is formed from the grounding working surface to the first contact, the resistance bridge module to the grounding body, the second contact and the grounding working surface, and the resistance bridge module is used for detecting the resistance in the closed loop and converting the resistance detection result into a voltage signal;

the voltage comparison module is connected with the resistance bridge module and is used for comparing the voltage signal input by the resistance bridge module with the voltage signal on the standard resistor;

the input end of the output conversion module is connected with the output end of the voltage comparison module and is used for carrying out signal conversion on the comparison result of the voltage comparison module;

the input end of the output driving module is connected with the output end of the output conversion module and used for generating a driving signal based on the signal transmitted by the output conversion module;

the output end of the output driving module is connected with the input end of the sound-light alarm module so as to drive the sound-light alarm module to generate a sound-light alarm signal through the output driving module;

and the power supply device is used for supplying power to the closed loop, the voltage comparison module, the output conversion module, the output driving module and the sound-light alarm module.

Preferably, the resistance bridge module, the output conversion module, the output driving module, the sound and light alarm module and the power supply device are arranged on an integrated circuit board.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the principles of the invention.

Fig. 1 shows a block diagram of an intelligent grounding device of the present novel embodiment;

fig. 2 shows a schematic usage diagram of the intelligent grounding device of the present novel embodiment.

1. Ground working surface

2. First contact

3. Second contact

4. Resistance bridge module

5. Voltage comparison module

6. Output conversion module

7. Output drive module

8. Acousto-optic alarm module

9. And a grounding body.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the invention. It should be noted that, for convenience of description, only the parts related to the present invention are shown in the drawings.

In the present invention, the embodiments and the features of the embodiments may be combined with each other without conflict. The present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments.

In the implementation shown in fig. 1 and 2, the intelligent grounding device of the tank truck in the present disclosure includes:

the device comprises a first contact 2 and a second contact 3, wherein the first contact 2 and the second contact 3 are used for being connected with a grounding working surface of the oil tank truck; preferably, for convenience of operation, the first contact 2 and the second contact 3 may be provided as strong bipolar magnets which can be easily attracted to the ground engaging surface of the tank wagon in use.

And a ground body 9 connected to the second contact 3.

The resistance bridge module 4 is used for detecting the resistance in the closed loop, one end of the resistance bridge module 4 is connected with the first contact 2, and the other end of the resistance bridge module 4 is connected with the grounding body 9;

the voltage comparison module 5 is connected with the resistance bridge and is used for acquiring a voltage signal of the resistance bridge and comparing the voltage signal input by the resistance bridge with a voltage signal of a standard resistor;

an output conversion module 6 connected with the output end of the voltage comparison module, wherein the output conversion module 6 converts the comparison result of the voltage comparison module 5 and transmits the converted signal to an output driving module 7, the output driving module 7 generates a driving signal based on the signal transmitted by the output conversion module 6 and outputs the driving signal to an audible and visual alarm module, the audible and visual alarm module generates different audible and visual alarm signals according to different driving signals, for example, when the voltage signal input by the resistance bridge is consistent with the voltage signal of the standard, a green light signal is output, and when the voltage signal input by the resistance bridge is inconsistent with the voltage signal of the standard resistance, a red light signal is output and an alarm sound is simultaneously given.

The power supply device is used for providing power for the bridge resistance module 4, the voltage comparison module 5, the output conversion module 6, the output driving module 7 and the audible and visual alarm module 8, and the power supply device can be a power supply such as a storage battery and the like as can be known by the technical personnel in the field.

It can be understood that the above modules can be integrated into a large scale integrated circuit to reduce the power consumption of the intelligent grounding device, and at the same time, the power supply device can adopt a low-energy power supply.

When the intelligent grounding device in the novel structure is used for grounding work, two strong bipolar magnet contact points on the grounding device attract the grounding device to the grounding working surface of a tank car, a grounding working line is formed between the grounding working surface, the second contact and the grounding body, and meanwhile, the grounding working surface reaches the first contact to the resistance bridge module to the grounding body and the second contact to the grounding working surface form a closed loop. The resistance bridge samples the loop resistance, converts the resistance of the whole grounding loop into a voltage signal, and compares the voltage signal with a voltage signal on a standard resistance through a voltage comparator. When the resistance of the grounding loop is larger than the standard resistance, the comparator outputs high level, otherwise, the comparator outputs low level. After the signal is output, converted and driven, when the grounding resistance meets the requirement, the green light-emitting diode is triggered, and simultaneously, a long sound is emitted, when the grounding resistance does not meet the requirement, the red light-emitting diode is triggered, and simultaneously, a sudden alarm sound is emitted, so that poor grounding is indicated.

This novel intelligence earthing device has simple structure, and convenient to use can effectively ensure the ground connection effect, need not advantages such as pipe laying threading.

In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

It should be understood by those skilled in the art that the above embodiments are only for clarity of explanation and are not intended to limit the scope of the present application. Other variations or modifications may occur to those skilled in the art based on the foregoing disclosure and are still within the scope of the present application.

Claims

1. An intelligent grounding device for a tank truck, comprising:

the voltage comparison module is connected with the resistance bridge module and is used for comparing a voltage signal input by the resistance bridge module with a voltage signal on a standard resistor;

and the power supply device is used for supplying power to the closed loop, the voltage comparison module, the output conversion module, the output driving module and the sound and light alarm module.

2. An intelligent grounding device for a tank lorry as claimed in claim 1, characterized in that:

the resistance bridge module, the output conversion module, the output driving module, the sound-light alarm module and the power supply device are arranged on an integrated circuit board.

3. An intelligent grounding device for a tank lorry as claimed in claim 1 or 2, characterized in that: the first contact and the second contact are both bipolar magnets.