CN114312639A

CN114312639A - Electrostatic grounding device of pipeline refueling truck and pipeline refueling truck

Info

Publication number: CN114312639A
Application number: CN202210043545.5A
Authority: CN
Inventors: 黄海频; 俞斌; 管大胜; 张志军; 朱琪
Original assignee: SHANGHAI CHENGFEI AVIATION SPECIAL EQUIPMENT CO Ltd
Current assignee: SHANGHAI CHENGFEI AVIATION SPECIAL EQUIPMENT CO Ltd
Priority date: 2022-01-14
Filing date: 2022-01-14
Publication date: 2022-04-12

Abstract

The application provides an electrostatic grounding device and pipeline tank service truck of pipeline tank service truck. The electrostatic grounding device comprises a control assembly, a first static conductive wire, a second static conductive wire and a third static conductive wire. The control assembly includes a control box and a contact switch. The contact switch includes a first contact and a second contact. The control box comprises a control panel for controlling the movable contact to be closed and opened. The first static conductive wire is used for being electrically connected with a static wiring terminal of an airplane. The second static conductive wire is used for being electrically connected with a static wiring terminal of the airplane. And the third static conductive wire is used for being connected with a chassis girder of the pipeline fuelling vehicle. The pipeline fuelling vehicle comprises an electric chassis and an electrostatic grounding device. So set up, the static charge that produces when making pipeline tank service truck 1 and aircraft contact is closed through control panel control contact switch, and then causes the static charge in the control box to prevent that static charge discharge from producing the spark, and then prevent that the spark from causing danger to outside oil-gas mixture environment.

Description

Electrostatic grounding device of pipeline refueling truck and pipeline refueling truck

Technical Field

The application relates to the field of aviation fuel filling, in particular to an electrostatic grounding device of a pipeline refueling truck and the pipeline refueling truck.

Background

The pipeline refueling truck has the extra-large potential safety hazard of static fire in the process of connecting the pipeline refueling truck with the airplane for refueling, and has other potential static hazards in the standing process. Therefore, it is necessary to install an electrostatic grounding device on the line refuelling truck. In the related art, because the electrostatic charge amount of the pipeline refuelling truck can not be estimated, under the condition of large charge amount, the spark generated by electrostatic charge discharge can not be avoided at the moment of connecting the airplane and the ground through the electrostatic grounding device, and dangerous accidents are easily caused.

Disclosure of Invention

The application provides an aim at avoiding causing the electrostatic grounding device and the pipeline tank service truck of dangerous accident.

The application provides an electrostatic grounding device of pipeline tank service truck, wherein, include:

the control assembly comprises a control box and a contact switch assembled in the control box, the contact switch comprises a first contact and a second contact, one of the first contact and the second contact is a fixed contact, the other one of the first contact and the second contact is a movable contact, and the control box comprises a control panel for controlling the movable contact to be closed and opened;

one end of the first static conductive wire is electrically connected with the first contact, and the other end of the first static conductive wire is led out of the control box and is used for being electrically connected with a static wiring terminal of an airplane;

one end of the second static conductive wire is electrically connected with the first contact, and the other end of the second static conductive wire is led out of the control box and is used for being electrically connected with a static wiring terminal of an airplane; and

and one end of the third static conductive wire is electrically connected with the second contact, and the other end of the third static conductive wire is led out from the control box and is used for being electrically connected with a chassis girder of the pipeline fuelling vehicle.

Optionally, the electrostatic grounding device further includes a first reel bracket and a first reel rotatably disposed on the first reel bracket, the first static conductive line includes a first switch connection line and a first terminal connection line, one end of the first switch connection line is electrically connected to the first contact, and the other end of the first switch connection line is electrically connected to the first reel bracket; the first wiring terminal connecting wire is wound on the first reel, one end of the first wiring terminal connecting wire is electrically connected with the first reel bracket, and the other end of the first wiring terminal connecting wire is used for being electrically connected with the electrostatic wiring terminal; the first reel support is used for being assembled on the chassis girder and is insulated from the chassis girder.

Optionally, the electrostatic grounding device further comprises a first jointing clamp connected with the first wiring terminal connecting line, and the first jointing clamp is used for clamping the electrostatic wiring terminal.

Optionally, the electrostatic grounding device further comprises a second reel support and a second reel rotatably arranged on the second reel support, the second static conductive wire comprises a second switch connecting wire and a second wiring terminal connecting wire, one end of the second switch connecting wire is electrically connected with the second contact, the other end of the second switch connecting wire is electrically connected with the second reel support, the second wiring terminal connecting wire is wound on the second reel, one end of the second wiring terminal connecting wire is electrically connected with the second reel support, the other end of the second wiring terminal connecting wire is electrically connected with the electrostatic wiring terminal, and the second reel support is assembled on the chassis girder and is insulated from the chassis girder.

Optionally, the electrostatic grounding device includes an insulating pad disposed between the bottoms of the first reel and the second reel and the chassis girder; the first reel and the second reel are insulated from the chassis girder by the insulating pad.

Optionally, the thickness range of the insulating pad is 4 mm-5 mm.

Optionally, the electrostatic grounding device further comprises a second jointing clamp connected with the second terminal connecting wire, and the second jointing clamp is used for clamping the electrostatic terminal.

Optionally, the first reel and the second reel are arranged in the front-rear direction of the pipeline fuelling vehicle, one is close to the vehicle head, the other is close to the vehicle tail, and the control assembly is arranged between the first reel and the second reel.

Optionally, the first static conductive wire and/or the second static conductive wire include a metal spiral wire, and a diameter range of the metal spiral wire is 2mm to 10 mm.

Optionally, the control box includes a box body and the control panel assembled to the box body, and the box body is made of at least one of the following materials: aluminum alloy material, stainless steel material, carbon steel material and engineering plastic material.

The application also provides a pipeline refueller, wherein includes:

the electric chassis comprises a chassis girder and a battery pack assembled on the chassis girder; and

the electrostatic grounding device is assembled on the chassis girder; the electrostatic grounding device comprises a control assembly, a first static conductive wire, a second static conductive wire and a third static conductive wire; the control assembly comprises a first contact and a second contact; the first contact is electrically connected with the first static conductive wire and the second static conductive wire respectively, and the second contact is electrically connected with the chassis girder through the third static conductive wire.

The application provides a static earthing device includes control assembly, first leads static electric wire, second and third and leads static electric wire. The control assembly includes a control box and a contact switch. The contact switch includes a first contact and a second contact. The control box comprises a control panel for controlling the movable contact to be closed and opened. The first static conductive wire is used for being electrically connected with a static wiring terminal of an airplane. The second static conductive wire is used for being electrically connected with a static wiring terminal of the airplane. And the third static conductive wire is used for being connected with a chassis girder of the pipeline fuelling vehicle. So set up, the static charge that produces when making pipeline tank service truck 1 and aircraft contact is closed through control panel control contact switch to make chassis girder, third lead static wire, contact switch, first lead static wire and aircraft form the return circuit, and chassis girder, third lead static wire, contact switch, second lead static wire and aircraft form another return circuit, and then lead static charge in the control box, thereby prevent that static charge from discharging and producing the spark, and then prevent that the spark from causing the danger to outside oil-gas mixture environment.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

FIG. 1 shows a front view of a line refuelling vehicle;

FIG. 2 shows another front view of the line refuelling vehicle;

FIG. 3 is a schematic structural view of a bracket of the line refuelling vehicle shown in FIG. 1;

FIG. 4 is a top view of the bracket shown in FIG. 3;

FIG. 5 is a front view of the bracket shown in FIG. 3;

FIG. 6 is a side view of the carriage shown in FIG. 3;

FIG. 7 is a partial bottom view of the bracket shown in FIG. 3;

FIG. 8 is a circuit diagram illustrating the battery power supply of the line refuelling vehicle of the present application;

FIG. 9 is a circuit diagram of a hydrogen detector of the fuel line truck of the present application for detecting hydrogen;

FIG. 10 is a schematic diagram of the connection of the battery pack to the battery management unit of the fuel line truck of the present application;

FIG. 11 is a block circuit diagram of a portion of the battery pack and battery management unit connection of the fuel line truck of the present application;

FIG. 12 is a partial block circuit diagram of an exemplary embodiment of the line refuelling vehicle of the present application;

FIG. 13 is a schematic view of the internal structure of the battery pack of the line refuelling vehicle of the present application;

FIG. 14 is a front view of a lead acid battery of the in-line refueling truck of the present application;

FIG. 15 is a side view of a lead acid battery of the in-line refueling truck of the present application;

FIG. 16 is a top view of a lead acid battery of the in-line refueling truck of the present application;

FIG. 17 is a schematic view of the attachment of the battery pack of the in-line refuelling vehicle to the main plug box in accordance with the present application;

fig. 18 shows an electrostatic grounding arrangement for a line refuelling vehicle.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus consistent with certain aspects of the present application, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. "plurality" or "a number" means two or more. Unless otherwise indicated, "front", "rear", "lower" and/or "upper" and the like are for convenience of description and are not limited to one position or one spatial orientation. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

The application provides an electrostatic grounding device of a pipeline refueller. The electrostatic grounding device comprises an electrostatic grounding device control assembly, a first static conductive wire, a second static conductive wire and a third static conductive wire. The control assembly includes a control box and a contact switch. The contact switch includes a first contact and a second contact. One of the first contact and the second contact is a fixed contact, and the other one is a movable contact. The control box comprises a control panel for controlling the movable contact to be closed and opened. One end of the first static conductive wire is electrically connected with the first contact, and the other end of the first static conductive wire is led out of the control box and is used for being electrically connected with a static wiring terminal of an airplane. One end of the second static conductive wire is electrically connected with the first contact, and the other end of the second static conductive wire is led out of the control box and is used for being electrically connected with a static wiring terminal of an airplane. One end of the third static conductive wire is electrically connected with the second contact, and the other end of the third static conductive wire is led out from the control box and is used for being connected with a chassis girder of the pipeline fuelling vehicle.

The application also provides a pipeline refuelling truck, which comprises an electric chassis and an electrostatic grounding device. The electric chassis comprises a chassis girder and a battery pack assembled on the chassis girder. The electrostatic grounding device is assembled on the chassis crossbeam.

Fig. 1 shows a front view of a tank truck 1. Fig. 2 shows another front view of the tank truck 1. Referring to fig. 1 and 2, the pipeline refueling truck 1 includes a driving wheel 9, a traveling motor 112, an upper assembly 4, and an upper drive motor 113. The walking motor 112 is connected with the driving wheel 9 and is used for driving the driving wheel 9 to walk. The upper assembling driving motor 113 is connected with the upper assembling component 4 and used for driving the upper assembling component 4 to operate. In some embodiments, the driving wheel 9 is a rear wheel, and the walking motor 112 is in transmission connection with the driving wheel 9. When the walking motor 112 is powered, the driving wheels 9 are driven to run. In some embodiments, the upper mount drive motor 113 drivingly connects the upper mount assembly 4. When the upper mounting driving motor 113 is powered on, the upper mounting assembly 4 is driven to operate.

Fig. 3 is a schematic structural view of the bracket 116 of the line truck 1 shown in fig. 1. Referring to fig. 1 and 3, the line tank truck 1 includes a chassis frame 5, a bracket 116, and a battery pack 6. The bracket 116 is assembled to the chassis frame 5. The battery pack 6 is assembled to the bracket 116. The bracket 116 includes an outer frame 117 and a plurality of sets of support members 118. A plurality of sets of support members 118 are assembled inside the outer frame 117 in upper and lower layers, and a battery pack storage space 119 is formed at an interval between adjacent sets of support members 118, and the battery pack 6 exists in the battery pack storage space 119. In one embodiment, the bracket 116 includes two sets of support assemblies 118, and the two sets of support assemblies 118 are divided into an upper layer and a lower layer for supporting the battery pack 6, so as to utilize the space in the vertical direction, thereby reducing the support area occupied in the horizontal direction of the chassis girder 5, and making the design space of the chassis girder 5 compact and reasonable and meet the requirement. The lower battery storage space 119 is formed between the two adjacent sets of support assemblies 118, and the upper battery storage space 119 is formed between the top of the outer frame 117 and the uppermost support assembly 118, so that the battery packs 6 are stacked on the upper and lower battery pack storage spaces 119 of the brackets 116, and the occupied support area of the chassis girder 5 is reduced.

In some embodiments, the support assembly 118 includes a fixed beam 151 and a plurality of rotatable rollers 120 arranged in parallel and at intervals, and a battery pack receiving/releasing opening 121 for receiving and releasing the battery pack 6 is formed in a portion of the outer frame 117 corresponding to the battery pack storage space 119 along the arrangement direction of the fixed beam 151 and the rollers 120. The fixing beams 151 are supported inside the outer frame 117 for fixing the outer frame 117 to make the outer frame 117 more stable. The fixing beam 151 is in contact with the bottom of the battery pack 6, and participates in supporting the battery pack 6, thereby increasing the reliability of supporting the battery pack 6. The bottom of the battery pack 6 contacts a plurality of rotatable rollers 120, and the direction in which the battery pack 6 is taken out of and put into the battery pack storage space 119 is perpendicular to the direction of the rotation axis of the rollers 120. In the process of taking and placing the battery pack 6, the battery pack 6 can be driven to move by the rotation of the plurality of rotatable rollers 120, so that the difficulty of taking and placing the battery pack 6 by an operator is reduced. A battery pack access port 121 is provided at an end portion in the longitudinal direction (direction indicated by a double arrow in fig. 3) of the outer frame 117, so that the battery pack 6 can be easily accessed and removed. In some embodiments, the bracket 116 has a height value of 1045mm, a width value of 1110mm, and a length value of 2200 mm.

In some embodiments, the outer frame 117 includes a bottom frame 122 and first and second side frames 123 and 124 assembled to the bottom frame 122 and spaced apart along a length direction of the roller 120, and the fixing beam 151 connects the first and second side frames 123 and 124. The bottom frame 122, the first side frame 123 and the second side frame 124 on two sides of the bottom frame 122 jointly enclose to form an outer frame 117. The fixing beam 151 is connected to the inside of the outer frame 117 and bridged between the first side frame 123 and the second side frame 124, preventing the first side frame 123 and the second side frame 124 from being easily deformed, so as to reinforce the overall stability of the outer frame 117. In some embodiments, the fixing beams 151 are also mounted between the first side frame 123 and the second side frame 124 in two layers, so as to enhance the rigidity of the outer frame 117 and improve the overall stability of the outer frame 117. The fixing beam 151 supports the battery pack 6 together with the plurality of rollers 120, and thus the effect of supporting the battery pack 6 is excellent.

In some embodiments, the first side frame 123 includes a plurality of first connection beams 125 connected in a crisscross manner, the second side frame 124 includes a plurality of second connection beams 126 connected in a crisscross manner, one end of the fixing beam 151 is connected to a connection point of the two first connection beams 125, and the other end of the fixing beam 151 is connected to a connection point of the two second connection beams 126. The plurality of first connection beams 125 are horizontally and vertically cross-connected to form the first side frame 123, so that the stability of the first side frame 123 is improved. The plurality of second connection beams 126 are horizontally and vertically cross-connected to form the second side frame 124, so that the stability of the second side frame 124 is improved. The one end of fixed beam 151 is connected with the intersection of two first tie-beams 125, and the other end of fixed beam 151 is connected with the intersection of two second tie-beams 126, so, make the rigidity that fixed beam 151 connects between first side frame 123 and second side frame 124 increase, effectively improve bracket 116's overall stability. In some embodiments, the first side frame 123 and the second side frame 124 are symmetrically disposed, so that the fixing beam 151 is connected to the first side frame 123 and the second side frame 124 with good stability. In some embodiments, the plurality of first connecting beams 125 includes at least five cross beams and at least four longitudinal beams. At least five of the cross beams include at least three shorter cross beams, which are located on the top of the first side frame 123 and connected between two adjacent longitudinal beams at intervals. The at least five cross beams further comprise at least two longer cross beams which are connected with the longitudinal beams according to the upper layer and the lower layer. In addition, the connection structure of the second connection beams 126 is the same as the connection structure of the first connection beams 125, and is not described in detail here.

In some embodiments, the outer frame 117 includes a plurality of pads 139 attached to the top surfaces of at least two of the longer beams, respectively, for assembling the battery pack 6.

In some embodiments, the in-line refueller 1 includes a hydrogen gas detector 114. The bracket 116 further includes a detection bracket 135 assembled to the outer frame 117, and the detection bracket 135 is located above the battery storage space 119 and used for assembling the hydrogen gas detector 114 for detecting the battery pack 6. The detecting bracket 135 is disposed above the inside of the outer frame 117 and above the battery pack 6, and the hydrogen detecting device 114 assembled on the detecting bracket 135 is also located above the battery pack 6, so that the hydrogen detecting device 114 can detect the concentration of hydrogen discharged from the battery pack 6 more accurately.

In some embodiments, detection carriage 135 includes a first side support beam 144 and a second side support beam 145 spaced apart along the length of roller 120; the first side support beams 144 extend horizontally and are connected between the adjacent two vertically extending first connecting beams 125, and the second side support beams 145 extend horizontally and are connected between the adjacent two vertically extending second connecting beams 126. The first side support beam 144 is located between two adjacent first connecting beams 125 and has a height lower than that of the first connecting beams 125, so that the first side support beam 144 does not protrude from the top end of the outer frame 117, and the height of the bracket 116 is prevented from exceeding 2mm, which meets the specification requirements of the line-fuelling vehicle 1. Similarly, the second side support beam 145 opposite to the first side support beam 144 is located between two adjacent second connecting beams 126 and has a height lower than that of the second connecting beams 126, so that the second side support beam 145 does not protrude from the top end of the outer frame 117, and the height of the bracket 116 is prevented from exceeding 2mm, which meets the specification requirements related to the line fuelling vehicle 1. In addition, when the battery pack 6 is placed in the battery pack storage space 119 of the bracket 116, a margin is provided between the top of the battery pack 6 and the top of the outer frame 117, which serves to improve the installation position and the installation space for the first and second side support beams 144 and 145.

Fig. 4 is a top view of the bracket 116 shown in fig. 3. As shown in FIG. 4, in some embodiments, the detection bracket 135 includes first and second support beams 146, 147 spaced apart parallel to the length of the roller 120, with the first and second support beams 146, 147 being connected between the first and second side support beams 144, 145, respectively. A first support beam 146 and a second support beam 147 are mounted perpendicularly between the first side support beam 144 and the second side support beam 145. The heights of the first support beam 146 and the second support beam 147 are lower than the heights of the first connecting beam 125 and the second connecting beam 126, so that the first support beam 146 and the second support beam 147 do not protrude out of the top end of the outer frame 117, and the height of the bracket 116 is prevented from exceeding 2mm, thereby meeting the specification requirements related to the pipeline fuelling vehicle 1.

Fig. 5 is a front view of the bracket 116 shown in fig. 3. Fig. 6 is a side view of the bracket 116 shown in fig. 3. As shown in fig. 4, 5, and 6, in some embodiments, the first side support beam 144 is at the same height as the second side support beam 145. The first support beam 146 and the second support beam 147 are at the same height. Thus, the stability of the structure in which the first and second side support beams 144 and 145 and the first and second support beams 146 and 147 are connected to each other is improved.

With continued reference to FIG. 3, in some embodiments, the detection bracket 135 includes a mounting plate 148 coupled between the first support beam 146 and the second support beam 147, and the hydrogen detector 114 is mounted to the mounting plate 148. The hydrogen detector 114 is connected through the mounting plate 148, so that the hydrogen detector 114 is more stably connected and has a good mounting effect.

In some embodiments, the mounting plate 148 includes a plurality of mounting holes 149 and at least two through holes 150; a plurality of mounting holes 149 are provided between the at least two through holes 150; the hydrogen gas detector 114 is fixed to the plurality of mounting holes 149. In some embodiments, the hydrogen detector 114 is secured to the plurality of mounting holes 149 by bolts. In addition, at least two through holes 150 are formed in the mounting plate 148, so that manufacturing materials of the mounting plate 148 are reduced, cost is reduced, the overall weight of the bracket 116 is reduced, and pressure of the bracket 116 on the chassis girder 5 is reduced.

In some embodiments, the bracket 116 further includes a chassis link 127 provided at the bottom end of the bottom frame 122, the chassis link 127 including a connecting plate 128, the connecting plate 128 protruding downward from the bottom surface of the bottom frame 122 for connecting the bracket 116 to the chassis girder 5 of the line truck 1. The chassis link 127 serves to connect the bottom frame 122 and the chassis girder 5. The connecting plate 128 is supported between the bottom frame 122 and the chassis frame 5 in the length direction, so that the finished bracket 116 is assembled to the chassis frame 5, thus, the structure is simple and the connecting effect is good. In some embodiments, the length of the connecting plate 128 is the same as the width of the bottom frame 122, so that the connecting area of the bottom frame 122 and the chassis girder 5 is increased, and the connecting stability of the bottom frame 122 and the chassis girder 5 is improved. In some embodiments, the number of connection plates 128 includes 1, 2, 3, etc. Preferably, the number of the connection plates 128 is 2.

In some embodiments, the chassis connector 127 includes a first connector 129 and a second connector 130, the first connector 129 and the second connector 130 are connected to two opposite sides of the connecting plate 128 at intervals; the chassis link 127 is adapted to be connected to the chassis girder 5 by a first link 129 and a second link 130. A first connecting member 129 and a second connecting member 130 are provided at the side of the connecting plate 128. The first connecting member 129 is provided with a first connecting hole 131, and the first connecting member 129 is connected to the chassis frame 5 by bolting the first connecting hole 131 to a mounting hole (not shown) of the chassis frame 5. Similarly, the second connecting member 130 is provided with a second connecting hole 132, and the second connecting hole 132 is connected to another mounting hole (not shown) of the chassis girder 5 by a bolt, thereby connecting the second connecting member 130 to the chassis girder 5. Therefore, the structure is simple, and the connecting effect of the connecting plate 128 and the chassis girder 5 is good. In addition, it should be noted that the first connecting member 129 is disposed on only one side surface of the connecting plate 128, and the second connecting member 130 is disposed on both side surfaces of the connecting plate 128, so that resources can be saved and costs can be reduced without affecting the stable connection between the connecting plate 128 and the chassis frame 5. In some embodiments, the number of the first connecting members 129 provided on one side of the connecting plate 128 is 1, 2, etc., preferably 2. The number of the second connection members 130 is 1, 2, etc., preferably 2. The number of the second connecting members 130 is 1, 2, etc., preferably 2, on the other side of the connecting plate 128. In some embodiments, the second connector 130 has a U-shaped configuration.

In some embodiments, the chassis link 127 further includes a support plate 133 and a reinforcement plate 134, wherein the support plate 133 is of a bent structure and is connected to the bottom end of the bottom frame 122 and the side of the link plate 128, and the reinforcement plate 134 is located between the bottom end of the bottom frame 122 and the side of the link plate 128 and is connected to the support plate 133. At the connection position of the bottom frame 122 and the connection plate 128, a part of the support plate 133 is connected to the bottom frame 122, and another part is connected to the side of the connection plate 128, so as to reinforce the connection rigidity of the bottom frame 122 and the connection plate 128 and improve the connection stability of the bottom frame 122 and the connection plate 128. The edges of the reinforcing plate 134 are connected to the plane of the two parts of the supporting plate 133 to reinforce the stability of the bottom frame 122 and the connecting plate 128. In some embodiments, the stiffening plate 134 is triangular in shape for good stabilization.

In some embodiments, the outer frame 117 is assembled from a hollow tube, the outer frame 117 forms an opening 136 at the end of the hollow tube, and the bracket 116 further includes a seal 137, the seal 137 sealing the opening 136. The inner part of the outer frame 117 is hollow, so that the whole weight of the bracket 116 is reduced, the pressure generated on the chassis girder 5 is reduced, the manufacturing cost of the outer frame 117 is reduced, and the resource is saved. A sealing member 137 is connected to the opening 136 of the outer frame 117 to prevent impurities such as water, dust, etc. from entering the inside of the hollow tube, thereby reducing the life span of the outer frame 117. In some embodiments, the seal 137 is a closure plate. In some embodiments, the size of the seal 137 matches the size of the opening 136.

Fig. 7 is a partial bottom view of the bracket 116 shown in fig. 3. As shown in fig. 7, in some embodiments, the outer frame 117 includes a battery charging port bracket 152 disposed at the bottom of the bottom frame 122 for passing a charging wire of the battery 6 to connect with an external power source.

Referring to fig. 1, in some embodiments, the bracket 116 includes an outer casing 138, and the outer casing 138 covers the outer side of the outer frame 117. The outer enclosure 138 is for enclosing the outside of the outer frame 117, and functions to protect the outer frame 117 and the battery pack 6 assembled inside the outer frame 117. In some embodiments, the outer packaging cover 138 is made of a material including, but not limited to, sheet iron.

Fig. 8 is a circuit diagram for supplying power to the battery pack 6 of the fuel line truck 1 provided in the present application. As shown in fig. 8, in some embodiments, the battery pack 6 is electrically connected to the walking motor 112 and the upper driving motor 113, and is used for supplying power to the walking motor 112 and/or the upper driving motor 113. In this embodiment, the battery pack 6 supplies power to the walking motor 112 and/or the upper mounting driving motor 113 to ensure the normal operation of the walking motor 112 and/or the upper mounting driving motor 113.

Fig. 9 is a circuit diagram illustrating the hydrogen gas detection by the hydrogen gas detector 114 of the fuel line truck 1 provided by the present application. Referring to fig. 8 and 9, in some embodiments, the fuel line truck 1 includes a battery management unit 115. The hydrogen detector 114 is used for detecting the concentration of hydrogen generated by the battery 6 and generating a corresponding electrical signal. The battery management unit 115 is electrically connected to the battery pack 6 and the hydrogen gas detector 114. The battery management unit 115 is configured to collect an electrical signal of the hydrogen detector 114, and control the battery pack 6 to stop charging when a hydrogen concentration corresponding to the electrical signal reaches a concentration threshold. During charging of the battery 6, the battery 6 may release hydrogen. The hydrogen is easy to explode when reaching a certain concentration in the air, and the safety accident is caused when the hydrogen is serious. Therefore, the hydrogen concentration in the periphery of the stack 6 can be detected by installing the hydrogen detector 114 near the stack 6. Specifically, the battery management unit 115 receives an electrical signal sent by the hydrogen detector 114 and related to the hydrogen concentration of the area where the battery pack 6 is located, and then the battery management unit 115 determines whether the real-time hydrogen concentration generated by the battery pack 6 reaches a concentration threshold according to the electrical signal, and if the real-time hydrogen concentration reaches the concentration threshold, the battery management unit 115 controls the battery pack 6 to be disconnected from an external power supply, and stops charging. Therefore, safety accidents are effectively reduced or avoided, the design scheme is simple, and the detection effect is good. In some embodiments, hydrogen detector 114 is a hydrogen sensor. In some embodiments, the concentration threshold is 10000 PPM. When the hydrogen concentration generated by the battery pack 6 reaches 10000PPM, the pipeline refueling truck 1 gives an alarm to prompt refueling personnel to cut off an external power supply for charging the battery pack 6, so that safety accidents are avoided.

With continued reference to fig. 9, in some embodiments, the battery pack 6 includes lead-acid batteries 140, the lead-acid batteries 140 being highly safe and not susceptible to explosion. The pipeline refueling truck 1 is special equipment for safely and quickly inputting aviation fuel in a ground well into an aircraft fuel tank. Therefore, the safety requirements for the line refueller 1 are particularly high. The lead-acid battery 140 is monitored by the battery management unit 115, and the safety of the lead-acid battery 140 in the charging and discharging process is improved. In some embodiments, the battery pack 6 includes at least four lead-acid batteries 140. The pipeline fuelling vehicle 1 comprises at least four collectors 141 electrically connected with the battery management unit 115, the collectors are respectively connected with the at least four lead-acid batteries 140 in series in a one-to-one correspondence manner, the collectors are used for collecting parameter information of the at least four lead-acid batteries 140 and providing the parameter information to the battery management unit 115, and the battery management unit 115 is used for controlling the corresponding collectors 141 according to the parameter information of the lead-acid batteries 140. The at least four collectors 141 are configured to collect parameter information of the at least four lead-acid batteries 140 and provide the parameter information to the battery management unit 115, and then the battery management unit 115 sends corresponding control instructions to the at least four collectors 141 according to the parameter information of the at least four lead-acid batteries 140, so that the at least four collectors 141 perform equalizing charging on the at least four lead-acid batteries 140 according to the control instructions, so as to equalize voltages of the at least four lead-acid batteries 140, and prolong service lives of the at least four lead-acid batteries 140.

Referring to fig. 8 and 9, in some embodiments, the fuel line truck 1 includes a vehicle controller 142 and an all-in-one controller 143, each of which is electrically connected to the battery management unit 115, wherein the vehicle controller 142 is configured to detect an operating state of the fuel line truck 1 to control the all-in-one controller 143 to distribute the electric energy of the battery pack 6 to at least one of the traveling motor 112 and the upper-mounted driving motor 113. The traveling motor 112 and the upper drive motor 113 are connected to the battery pack 6 through an all-in-one controller 143. The all-in-one controller 143 may distribute the electric power of the battery pack 6, may distribute the electric power to the travel motor 112, may not distribute the electric power to the upper attachment driving motor 113, may not distribute the electric power to the travel motor 112, or may distribute the electric power to the travel motor 112 and the upper attachment driving motor 113. The vehicle control unit 142 is a core control unit of the entire line fuelling vehicle 1. The vehicle control unit 142 is used for acquiring a running signal of the driving wheel 9, an operation state signal of the upper assembly 4 and the like, and controlling the all-in-one controller 143 to distribute the electric energy of the battery pack 6 to the running motor 112 after making corresponding judgment, so as to drive the driving wheel 9 to run normally; and/or controls the all-in-one controller 143 to distribute the electric energy of the battery pack 6 to the upper assembly driving motor 113, so as to drive the normal operation of the upper assembly 4. Therefore, the electric energy of the battery pack 6 can be optimally matched, the vehicle state of the pipeline fuelling vehicle 1 can be monitored, and the stability and the reliability of the pipeline fuelling vehicle 1 are improved. In some embodiments, the all-in-one controller 143 may distribute the power of the battery pack 6 to other power requiring components.

Fig. 10 is a schematic structural diagram illustrating the connection between the battery pack 6 and the battery management unit 115 of the fuel line truck 1 provided by the present application. Fig. 11 is a partial circuit block diagram illustrating the connection between the battery pack 6 and the battery management unit 115 of the fuel line truck 1 provided by the present application. As shown in connection with fig. 10, 11, in some embodiments, the battery pack 6 includes a plurality of lead-acid batteries 140 connected in series; the plurality of lead-acid batteries 140 includes at least a first lead-acid battery 171 and a second lead-acid battery 172, one of the first lead-acid battery 171 and the second lead-acid battery 172 leads out a positive electrode, and the other leads out a negative electrode. The line refueller 1 includes a battery management unit 115. The battery management unit 115 is electrically connected to the positive electrode and the negative electrode, and is configured to monitor parameter information of the battery pack 6 and control a charging/discharging current of the battery pack 6. The lead-acid batteries 140 are connected in series to provide a large voltage to supply power to the walking motor 112 and the upper-mounted driving motor 113 so as to meet the power utilization voltage of the walking motor 112 and the upper-mounted driving motor 113. The battery management unit 115 is used to monitor parameter information (e.g., temperature information, voltage information, etc.) of the plurality of lead-acid batteries 140 when the external power source charges the plurality of lead-acid batteries 140. When detecting that the temperature value of the plurality of lead-acid batteries 140 exceeds the temperature threshold and/or the voltage value exceeds the voltage threshold, the power management unit 115 controls the amount of current for charging the plurality of lead-acid batteries 140. Alternatively, during the process of discharging the traveling motor 112 and the upper-mounted driving motor 113 by the plurality of lead-acid batteries 140, the battery management unit 115 may monitor parameter information such as temperature information and voltage information of the plurality of lead-acid batteries 140. When detecting that the temperature value of the plurality of lead-acid batteries 140 exceeds the temperature threshold and/or the voltage value exceeds the voltage threshold, the power management unit 115 controls the amount of current discharged by the plurality of lead-acid batteries 140. So set up for pipeline tank service truck 1 adopts a plurality of lead-acid batteries 140 power supplies to through the electric current size of a plurality of lead-acid batteries 140 charges and discharges of power management unit 115 control, in order to avoid a plurality of lead-acid batteries 140 overheated in the charge-discharge process, cause the potential safety hazard. In some embodiments, the battery management unit 115 is disposed within a control box, which is an explosion-proof housing. In some embodiments, lead acid battery 140 comprises a gel lead acid battery. The colloid lead-acid battery comprises colloid electrolyte which is solid when standing still so as to be convenient for transportation and not easy to leak.

Fig. 12 is a partial circuit block diagram of an embodiment of the line refuelling truck 1 provided in the present application. As shown in fig. 12, in some embodiments, the fuel tanker 1 includes a plurality of collectors 141 electrically connected to the battery management unit 115, and the plurality of collectors 141 are respectively connected to the plurality of lead-acid batteries 140 in a one-to-one correspondence manner, and are configured to collect parameter information of the plurality of lead-acid batteries 140 and provide the parameter information to the battery management unit 115, and the battery management unit 115 is configured to control the plurality of collectors 141 according to the parameter information of the plurality of lead-acid batteries 140, so as to perform equalizing charging on the plurality of lead-acid batteries 140. The at least four collectors 141 are configured to collect parameter information of the at least four lead-acid batteries 140 and provide the parameter information to the battery management unit 115, and then the battery management unit 115 sends corresponding control instructions to the at least four collectors 141 according to the parameter information of the at least four lead-acid batteries 140, so that the at least four collectors 141 perform equalizing charging on the at least four lead-acid batteries 140 according to the control instructions, so as to equalize voltages of the at least four lead-acid batteries 140, and prolong service lives of the at least four lead-acid batteries 140.

In some embodiments, the fuel line truck 1 includes a temperature sensor 173 electrically connected to the plurality of collectors 141 for detecting temperature information of the plurality of lead-acid batteries 140 and providing the temperature information to the collectors 141, the collectors 141 for providing the temperature information to the battery management unit 115, and the battery management unit 115 for controlling the amount of current charged and discharged by the battery pack 6 according to the temperature information. In this embodiment, the temperature sensor 173 is configured to detect temperature values of the plurality of lead-acid batteries 140 during charging and discharging processes, and collect the temperature values through the collector 141, so as to provide the temperature values to the battery management unit 115. If the collected temperature value exceeds the temperature threshold value, the alarm gives an alarm to prompt an operator to stop corresponding operation. Thus, the high battery vulcanization caused by the over-high temperature of the lead-acid batteries 140 during charging and discharging is avoided, the service life of the batteries is shortened, and the safety of the lead-acid batteries 140 is improved.

In addition, it should be noted that, in addition to the temperature of the lead-acid batteries 140 may be too high during charging and discharging, the temperature of the lead-acid batteries 140 may also be too high due to misoperation of an operator. For example, the positive and negative electrodes of the lead-acid batteries 140 are short-circuited, which may cause the temperature of the lead-acid batteries 140 to be too high, and at this time, the alarm may be triggered to alarm, so as to prompt an operator to remove the fault, thereby preventing the fault from further deteriorating.

In some embodiments, the fuel line truck 1 includes a vehicle controller 142 and an all-in-one controller 143 electrically connected to each other, the vehicle controller 142 is electrically connected to the temperature sensor 173, and the vehicle controller 142 is configured to control the all-in-one controller 143 to disconnect the battery pack 6, the traveling motor 112, and the upper-mounted driving motor 113 if the temperature value detected by the temperature sensor 173 is greater than the temperature threshold value. When the temperature sensor 173 detects that the temperature value of the plurality of lead-acid batteries 140 is greater than the temperature threshold value, the vehicle control unit 142 controls the all-in-one controller 143 to disconnect the plurality of lead-acid batteries 140 from the traveling motor 112 and the upper-mounted driving motor 113 according to the detected corresponding temperature signal sent by the temperature sensor 173. Therefore, the potential safety hazard caused by overhigh temperature when the plurality of lead-acid batteries 140 supply power to the walking motor 112 and/or the upper-mounted driving motor 113 is avoided. If the acquired temperature value is greater than the temperature threshold value, the vehicle control unit 142 controls the alarm to give an alarm.

Fig. 13 is a schematic diagram illustrating an internal structure of the battery pack 6 of the line fuelling vehicle 1 according to the present application. As shown in fig. 13, in some embodiments, the temperature sensor 173 is disposed inside the battery pack 6 and near the center of the battery pack 6 with respect to the edge of the battery pack 6. Since the temperature at the center of the battery pack 6 dissipates heat slowly, the temperature sensor 173 is mounted at the center of the battery pack 6 to reflect the temperature information of the lead-acid battery cells 140 more, so that the temperature information of the battery pack 6 detected by the temperature sensor 173 is more accurate and reliable. And thus some of the above-described controls can be performed in time when the temperature of a local region (generally, a central region) of the battery pack 6 is high, to improve the safety better. In some embodiments, at least two temperature sensors 173 are provided inside the battery pack 6.

With continued reference to fig. 12, in some embodiments, the in-line refuelling vehicle 1 includes an explosion proof circuit breaker 175 electrically connected between the plurality of lead acid batteries 140 and the battery management unit 115. The explosion-proof circuit breaker 175 has overload and short-circuit protection functions. The explosion-proof circuit breaker 175 is disposed between the output terminals of the plurality of lead-acid batteries 140 and the input terminal of the battery management unit 115 to prevent the plurality of lead-acid batteries 140 from overloading the current supplied to the battery management unit 115, thereby protecting the battery management unit 115.

Fig. 14 is a front view of the lead-acid battery 140 of the fuel line truck 1 provided in the present application. Fig. 15 is a side view of the lead-acid battery 140 of the fuel line truck 1 provided herein. Fig. 16 is a top view of the lead-acid battery 140 of the fuel line truck 1 provided in the present application. As shown in connection with fig. 14-16, in some embodiments, lead-acid battery 140 includes a housing 176 and a cell (not shown) disposed within housing 176; the side wall of the housing 176 is provided with a vent 177, the vent 177 communicating with the interior of the housing 176. The vent 177 is disposed on the side wall of the casing 176, so that gas generated by a battery cell (not shown) inside the casing 176 can be discharged in time, thereby preventing the gas from affecting the battery cell (not shown), and improving safety.

As shown in fig. 16, in some embodiments, the lead acid battery 140 includes a spring pull 178, the spring pull 178 including an interconnected pull portion 179 and a connection portion 180, the connection portion 180 connecting the outside of the housing 176. A spring pull 178 is provided on the housing 176 of the lead acid battery 140 to facilitate the operator opening the lead acid battery 140. Specifically, the operator strikes the lead-acid battery 140 by manually pulling the handle portion 179. Therefore, the structure is simple and the operation is convenient.

As shown in fig. 15, in some embodiments, the lead-acid battery 140 includes a plurality of hangers 186 attached to the outer side wall of the housing 176; the lifting piece 186 comprises a mounting fixing plate 181 and a lifting hole 182 arranged in the middle of the mounting fixing plate 181, and the mounting fixing plate 181 is connected with the outer side wall of the housing 176. In this embodiment, a plurality of hoisting pieces 186 are arranged on the outer side wall of the housing 176, so that the lead-acid battery 140 can be hoisted conveniently by the crane in a manner of being connected with the hoisting pieces 186, and the difficulty in mounting or dismounting the lead-acid battery 140 is reduced.

Fig. 17 is a schematic view showing a structure in which the battery pack 6 of the fuel line truck 1 is connected to the header box 183 in the present application. As shown in fig. 17, in some embodiments, the linerboard 1 includes a header cartridge 183, the header cartridge 183 including a housing 184 and a plurality of plug connectors 185 disposed inside the housing 184; the plurality of plug connectors 185 are electrically connected to the plurality of lead-acid batteries 140 in a one-to-one correspondence, respectively. The plurality of lead-acid batteries 140 are connected in series through the header box 183 to lead out a positive electrode and a negative electrode, thereby supplying power to the traveling motor 112 and the upper-mounted driving motor 113. Thus, the safety of the electrical connection of the plurality of lead-acid batteries 140 to the travel motor 112 and the upper-mounted drive motor 113 is improved. Specifically, a plurality of plug connectors 185 corresponding to the number of the plurality of lead-acid batteries 140 are provided in the header box 183. The plurality of plug connectors 185 are correspondingly connected with the plurality of lead-acid batteries 140, further, the positive poles and the negative poles of the plurality of plug connectors 185 are correspondingly connected, wherein the positive poles and the negative poles are respectively led out from the plug connectors 185 at the head and the tail of the plurality of plug connectors 185. The traveling motor 112 and the upper loading driving motor 113 are connected to the main plug box 183 through the positive and negative electrodes.

With continued reference to fig. 10, in some embodiments, the plug of the lead-acid battery 140 is provided with auxiliary contacts 174, and the lead-acid battery 140 is electrically connected to the battery management unit 115 through the auxiliary contacts 174. An auxiliary contact 174 is additionally installed on a plug of the lead-acid battery 140 to prevent electric arcs from being generated when the lead-acid battery 140 and the battery management unit 115 are plugged in and out in a charged state, and safety is improved. In some embodiments, the auxiliary contacts 174 are provided between the plug connector 185 and the battery management unit 115.

In some embodiments, the battery pack 6 includes at least four lead-acid batteries 140. In some embodiments, the total voltage of the at least four lead-acid batteries 140 is 360V, the total charge is 200AH, and the total energy is 72 kwh. In some embodiments, the total weight of the at least four lead acid batteries 140 does not exceed 3.0 tons, preferably 2720 kg.

In some embodiments, a plurality of lead acid batteries 140 are assembled in upper and lower layers to the chassis frame 5. Specifically, every two lead-acid batteries 140 are grouped and stacked one on top of the other. So set up, make to reduce the support area who occupies chassis girder 5, overall layout is compact reasonable.

In some embodiments, each lead acid battery 140 has a length value of 980mm, a width value of 930mm, and a height value of 300 mm.

Fig. 18 shows the electrostatic grounding device 86 of the fuel line truck 1. As shown in fig. 18, in some embodiments, the line refuelling vehicle 1 includes an electrostatic grounding device 86, the electrostatic grounding device 86 being assembled to the chassis girder 5. The electrostatic grounding device 86 is connected to the chassis girder 5, and the chassis girder 5 is connected to the ground through wheels. Therefore, when the fuel truck 1 refuels the aircraft, the electrostatic grounding device 86 is connected with the aircraft, so that static electricity generated by contacting the aircraft can be discharged to the ground, and thus, electrostatic disasters generated at the moment when the fuel truck 1 is connected with the aircraft can be eliminated.

In some embodiments, the electrostatic grounding device 86 includes a control assembly 87, a first static conductive wire 88, a second static conductive wire 89, and a third static conductive wire 90. The control assembly 87 includes a control box 91 and a contact switch 92 assembled in the control box 91, the contact switch 92 includes a first contact 93 and a second contact 94, one of the first contact 93 and the second contact 94 is a fixed contact, the other is a movable contact, and the control box 91 includes a control panel 95 for controlling the movable contact to be closed and opened. The first static conductive wire 88 has one end electrically connected to the first contact 93 and the other end led out from the control box 91 for electrical connection to the static terminal 96 of the aircraft. The second static conductive wire 89 has one end electrically connected to the first contact 93 and the other end led out from the control box 91 for electrical connection to the static terminal 96 of the aircraft. One end of the third static conductive wire 90 is electrically connected with the second contact 94, and the other end is led out from the control box 91 and is used for being electrically connected with the chassis girder 5 of the pipeline fuelling vehicle 1. In the related art, since the electrostatic charge amount of the line refueller 1 cannot be estimated, when the charge amount is large, sparks generated by discharge cannot be avoided at the moment when the aircraft and the ground are connected through the electrostatic grounding device, and safety accidents are easily caused. Therefore, in the present application, the above problem is solved by providing the control assembly 87. Specifically, when the pipeline refuelling truck 1 needs to refuel an aircraft, the first static conductive wire 88 is electrically connected to the first static binding post, the second static conductive wire 89 is electrically connected to the second static binding post, and then the first contact 93 is controlled by the control panel 95 to be electrically connected to the second contact 94, that is, the contact switch 92 is closed, so that the chassis girder 5, the third static conductive wire 90, the contact switch 92, the first static conductive wire 88 and the aircraft form a loop, and the chassis girder 5, the third static conductive wire 90, the contact switch 92, the second static conductive wire 89 and the aircraft form another loop. Thus, the static charge generated when the pipeline refuelling truck 1 contacts with the airplane is led into the control box 91, so that the static charge is prevented from discharging to generate sparks, and further, the sparks are prevented from causing danger to the external oil-gas mixed environment. In addition, the first static conductive wire 88 is electrically connected with the first static binding post, the second static conductive wire 89 is electrically connected with the second static binding post, and the first contact 93 and the second contact 94 are not electrically connected, so that sparks cannot be generated due to discharge at the moment that the pipeline fuelling vehicle 1 is in contact with the airplane, and no danger can be caused to the external oil-gas mixed environment. In this way, by arranging the contact switch 92, static charges generated by the first static conductive wire 88 and/or the second static conductive wire 89 connected to the airplane and the ground can be led into the control box 91, and by utilizing the characteristics of the control box 91, sparks generated during discharging are prevented, so that the sparks are prevented from causing danger to the external oil-gas mixed environment. In some embodiments, the control box 91 is an explosion-proof box.

In some embodiments, the electrostatic grounding device 86 further includes a first reel holder 99 and a first reel 100 rotatably disposed on the first reel holder 99, the first static conductive line 88 includes a first switch connection line 101 and a first terminal connection line 102, one end of the first switch connection line 101 is electrically connected to the first contact 93, and the other end is electrically connected to the first reel holder 99; a first terminal connecting wire 102 is wound around the first reel 100, one end of which is electrically connected to the first reel holder 99 and the other end of which is electrically connected to the electrostatic terminal 96; the first reel bracket 99 is used for being assembled to the chassis girder 5 and insulated from the chassis girder 5. The first reel 100 is assembled to the first reel holder 99. The first reel 100 is used to collect the first terminal connection wires 102. The first reel holder 99 is made of a metal material, and can electrically connect the first terminal connection line 102 and the first switch connection line 101. When the first terminal connecting wire 102 is electrically connected with the electrostatic terminal 96 and the contact switch 92 is closed, the electrostatic terminal 96, the first terminal connecting wire 102, the first switch connecting wire 101, the third static conductive wire 90 and the chassis girder 5 form a loop, so that generated static charges are led into the control box 91, sparks are prevented from being generated during static charge discharge, and further, the sparks are prevented from causing danger to an external oil-gas mixed environment. The first reel bracket 99 is insulated from the chassis girder 5, and the first reel bracket 99 is prevented from being electrically connected with the chassis girder 5, thereby affecting static charges to be introduced into the control box 91.

In some embodiments, the electrostatic grounding arrangement 86 further includes a first clip 103 connected to the first terminal connection wire 102, the first clip 103 being configured to retain the electrostatic terminal 96. The first jointing clamp 103 is connected to one end of the first wiring terminal connecting line 102 far away from the first switch connecting line 101, and the electrostatic wiring terminal 96 is clamped through the first jointing clamp 103, so that the airplane is electrically connected with the electrostatic grounding device 86, the structure is simple, and the operation of an oiling person is convenient.

In some embodiments, the electrostatic grounding device 86 further includes a second reel bracket 104 and a second reel 105 rotatably disposed on the second reel bracket 104, the second conductive wire 89 includes a second switch connecting wire 106 and a second terminal connecting wire 107, one end of the second switch connecting wire 106 is electrically connected to the second contact 94, the other end of the second switch connecting wire 106 is electrically connected to the second reel bracket 104, the second terminal connecting wire 107 is wound around the second reel 105, one end of the second switch connecting wire is electrically connected to the second reel bracket 104, the other end of the second switch connecting wire is electrically connected to the electrostatic terminal 96, and the second reel bracket 104 is configured to be assembled to the chassis girder 5 and is insulated from the chassis girder 5. The second reel 105 is assembled to the second reel holder 104. The second reel 105 is used to collect the second post connection wires 107. The second reel holder 104 is made of metal, and can electrically connect the second terminal connecting wire 107 and the second switch connecting wire 106. When the second terminal connecting wire 107 is electrically connected with the electrostatic terminal 96 and the contact switch 92 is closed, the electrostatic terminal 96, the second terminal connecting wire 107, the second switch connecting wire 106, the third static conductive wire 90 and the chassis girder 5 form a loop, so that generated static charges are led into the control box 91, sparks are prevented from being generated during static charge discharge, and further, the sparks are prevented from causing danger to an external oil-gas mixed environment. The second reel holder 104 is insulated from the chassis girder 5, and it is prevented that the second reel holder 104 is electrically connected to the chassis girder 5, thereby affecting electrostatic charge to be introduced into the control box 91.

In some embodiments, the electrostatic grounding arrangement 86 includes an insulating pad 108 disposed between the bottom of the first reel 100 and the second reel 105 and the chassis longeron 5; the first reel 100 and the second reel 105 are insulated from the chassis girder 5 by insulating pads 108. The insulating pad 108 is mainly used in a power distribution room and a power distribution station, is used for laying the ground of a power distribution facility, has an insulating effect, prevents the first reel 100 and the second reel 105 from generating an electric leakage phenomenon, and avoids safety accidents. In some embodiments, the insulating pad 108 comprises a rubber pad.

In some embodiments, the thickness of the insulating pad 108 ranges from 4mm to 5 mm. Therefore, the insulating effect is better.

In some embodiments, the electrostatic grounding arrangement 86 further includes a second clip 109 coupled to the second post connection wire 107, the second clip 109 configured to retain the electrostatic post 96. The second binding clip 109 is connected to one end of the second binding post connecting wire 107 far away from the second switch connecting wire 106, and the electrostatic binding post 96 is clamped by the second binding clip 109, so that the aircraft is electrically connected with the electrostatic grounding device 86, the structure is simple, and the operation of an oiling person is convenient.

In some embodiments, a first spool 100 (left spool in the figures) and a second spool 105 (right spool in the figures) are arranged in a front-to-back direction of the line refueler 1, one near the head and the other near the tail, and the control assembly 87 is disposed between the first spool 100 and the second spool 105. Considering that when the pipeline refuelling truck 1 runs to the refueling port of the airplane, the head of the pipeline refuelling truck 1 and the nose of the airplane are in a non-directional condition, or the head of the pipeline refuelling truck 1 and the nose of the airplane are in a same-directional condition, so if only one reel is arranged and one jointing clamp is corresponding, the jointing clamp is inconvenient to connect with the electrostatic binding post 96 of the airplane. Thus, the electrostatic grounding device 86 is provided with two reels, one at the head and one at the tail. Two reels correspond to respectively have two binding clips to make things convenient for the personnel of refueling to select one of them binding clip that is closer to aircraft's electrostatic binding post 96, come centre gripping electrostatic binding post 96, reduce the personnel's of refueling operation degree of difficulty. For example, when the head of the pipeline refuelling truck 1 is in the same direction as the head of the aircraft, the second reel 105 is closer to the electrostatic binding post 96 of the aircraft than the first reel 100, so that the refuelling personnel can clamp the second binding clip 109 corresponding to the second reel 105 to the electrostatic binding post 96; or when the head of the pipeline refueling truck 1 is opposite to the head of the aircraft, the first reel 100 is closer to the electrostatic binding post 96 of the aircraft than the second reel 105, so that the refueling personnel can clamp the first binding clip 103 corresponding to the first reel 100 on the electrostatic binding post 96.

In some embodiments, the first static conductive wire 88 and/or the second static conductive wire 89 comprise a metal spiral having a diameter ranging from 2mm to 10 mm. The metal spiral is small and light in weight, thereby reducing the overall weight of the electrostatic grounding device 86. And the conductive performance of the metal spiral line is good.

In some embodiments, the control box 91 includes a box body 110 and a control panel 95 assembled to the box body 110, the box body 110 is made of at least one of the following materials: aluminum alloy material, stainless steel material, carbon steel material and engineering plastic material. A control panel 95 assembled in the case 110 is used to control the closing and opening of the contact switch 92. In some embodiments, the control panel 95 includes a controller. The aluminum alloy material, the stainless steel material, the carbon steel material and the engineering plastic material have the advantages of light weight, convenient movement, good shock absorption effect, impact resistance, corrosion resistance, good heat resistance, suitability for severe and complex environments and the like. At least one of the materials is adopted to manufacture the box body 110, so that the box body 110 has good explosion-proof effect and long service life.

Although the present application has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the application, and all changes, substitutions and alterations that fall within the spirit and scope of the application are to be understood as being covered by the following claims.

Claims

1. An electrostatic grounding device of a pipeline refueller, comprising:

2. The electrostatic grounding device of claim 1, further comprising a first reel holder and a first reel rotatably disposed on the first reel holder, wherein the first static conductive line comprises a first switch connection line and a first terminal connection line, one end of the first switch connection line is electrically connected to the first contact, and the other end of the first switch connection line is electrically connected to the first reel holder; the first wiring terminal connecting wire is wound on the first reel, one end of the first wiring terminal connecting wire is electrically connected with the first reel bracket, and the other end of the first wiring terminal connecting wire is used for being electrically connected with the electrostatic wiring terminal; the first reel support is used for being assembled on the chassis girder and is insulated from the chassis girder.

3. The electrostatic grounding apparatus of claim 2, further comprising a first clip connected to the first terminal connection wire, the first clip configured to hold the electrostatic terminal.

4. The electrostatic grounding device according to claim 2, further comprising a second reel bracket and a second reel rotatably disposed on the second reel bracket, wherein the second conductive wire comprises a second switch connecting wire and a second terminal connecting wire, one end of the second switch connecting wire is electrically connected to the second contact, the other end of the second switch connecting wire is electrically connected to the second reel bracket, the second terminal connecting wire is wound around the second reel, one end of the second terminal connecting wire is electrically connected to the second reel bracket, the other end of the second terminal connecting wire is electrically connected to the electrostatic terminal, and the second reel bracket is configured to be assembled to the chassis girder and is insulated from the chassis girder.

5. The electrostatic grounding device of claim 4, wherein the electrostatic grounding device comprises an insulating pad disposed between the bottom portions of the first reel and the second reel and the chassis girder; the first reel and the second reel are insulated from the chassis girder by the insulating pad.

6. The electrostatic grounding device according to claim 5, wherein the thickness of the insulating pad has a value in a range of 4mm to 5 mm.

7. The electrostatic grounding apparatus of claim 4, further comprising a second clip connected to the second terminal connection wire, the second clip configured to hold the electrostatic terminal.

8. The electrostatic grounding device of claim 4, wherein the first reel and the second reel are arranged in a front-to-rear direction of the fuel line truck, one being near a front end and the other being near a rear end, and the control assembly is disposed between the first reel and the second reel.

9. The electrostatic grounding device according to claim 1, wherein the first and/or second static conductive wire comprises a metal spiral having a diameter in a range of 2mm to 10 mm.

10. The electrostatic grounding device according to claim 1, wherein the control box comprises a box body and the control panel assembled to the box body, and the box body is made of at least one of the following materials: aluminum alloy material, stainless steel material, carbon steel material and engineering plastic material.

11. A line refueller, comprising:

the electrostatic grounding device according to any one of claims 1 to 10, assembled to the chassis frame; the electrostatic grounding device comprises a control assembly, a first static conductive wire, a second static conductive wire and a third static conductive wire; the control assembly comprises a first contact and a second contact; the first contact is electrically connected with the first static conductive wire and the second static conductive wire respectively, and the second contact is electrically connected with the chassis girder through the third static conductive wire.