Electrostatic grounding device for pipeline tanker and pipeline tanker

Abstract

The application provides a pipeline refueling vehicle static grounding device and a pipeline refueling vehicle. The static grounding device comprises a control assembly, a first static electricity guide wire, a second static electricity guide wire and a third static electricity guide wire. The control assembly comprises a control box and a contact switch. The contact switch comprises a first contact and a second contact. The control box comprises a control panel for controlling the opening and closing of the movable contact. The first static electricity guide wire is used for electrically connecting with the static electricity terminal of the airplane. The second static electricity guide wire is used for electrically connecting with the static electricity terminal of the airplane. The third static electricity guide wire is used for connecting with the chassis beam of the pipeline refueling vehicle. The pipeline refueling vehicle comprises an electric chassis and the static grounding device. In this way, when the pipeline refueling vehicle 1 contacts the airplane, the static electricity generated by the pipeline refueling vehicle 1 is guided to the control box through the control panel, so that the static electricity is prevented from discharging to generate sparks, and the sparks are prevented from causing danger to the external oil-gas mixed environment.

Description

Technical Field

[0001] The present application relates to the field of aviation fuel refueling, and in particular to an electrostatic grounding device for a pipeline refueling truck and the pipeline refueling truck. Background Art

[0002] The connection between a refueling truck and an aircraft for refueling presents a significant safety hazard, posing a fire hazard caused by static electricity. Other static hazards also exist when the truck is stationary. Therefore, installing an electrostatic grounding device on a refueling truck is essential. In related art, the static charge of a refueling truck is unpredictable. If the static charge is high, sparks generated by static discharge when the grounding device connects the aircraft to the ground cannot be avoided, potentially leading to dangerous accidents. Summary of the Invention

[0003] The present application provides an electrostatic grounding device for a pipeline refueling truck and a pipeline refueling truck, which are intended to avoid dangerous accidents.

[0004] The present application provides an electrostatic grounding device for a pipeline refueling vehicle, comprising:

[0005] A control assembly comprising a control box and a contact switch assembled in the control box, the contact switch comprising a first contact and a second contact, one of the first contact and the second contact being a stationary contact and the other being a moving contact, the control box comprising a control panel for controlling the closing and opening of the moving contact;

[0006] a first electrostatic conductive wire, one end of which is electrically connected to the first contact, and the other end of which is led out from the control box and is used to be electrically connected to the electrostatic terminal of the aircraft;

[0007] a second electrostatic conductive wire, one end of which is electrically connected to the first contact, and the other end of which is led out from the control box and is used to be electrically connected to the electrostatic terminal of the aircraft; and

[0008] One end of the third electrostatic conductive wire is electrically connected to the second contact, and the other end is led out from the control box and is used to be electrically connected to the chassis beam of the pipeline refueling vehicle.

[0009] Optionally, the electrostatic grounding device also includes a first reel bracket and a first reel rotatably set on the first reel bracket, the first electrostatic conductive line includes a first switch connecting line and a first terminal connecting line, one end of the first switch connecting line is electrically connected to the first contact, and the other end is electrically connected to the first reel bracket; the first terminal connecting line is wound on the first reel, one end is electrically connected to the first reel bracket, and the other end is used to be electrically connected to the electrostatic terminal; the first reel bracket is used to be assembled on the chassis frame and is insulated from the chassis frame.

[0010] Optionally, the electrostatic grounding device further includes a first wiring clamp connected to the first terminal connection line, and the first wiring clamp is used to clamp the electrostatic terminal.

[0011] Optionally, the electrostatic grounding device also includes a second reel bracket and a second reel rotatably set on the second reel bracket, the second electrostatic conductive line includes a second switch connecting line and a second terminal connecting line, one end of the second switch connecting line is electrically connected to the second contact, and the other end is electrically connected to the second reel bracket, the second terminal connecting line is wound on the second reel, one end is electrically connected to the second reel bracket, and the other end is used to be electrically connected to the electrostatic terminal, and the second reel bracket is used to be assembled on the chassis frame and is insulated from the chassis frame.

[0012] Optionally, the electrostatic grounding device includes an insulating pad, which is arranged between the bottom of the first reel and the second reel and the chassis beam; the first reel and the second reel are insulated from the chassis beam through the insulating pad.

[0013] Optionally, the thickness of the insulating pad ranges from 4 mm to 5 mm.

[0014] Optionally, the electrostatic grounding device further includes a second wiring clamp connected to the second terminal connection line, and the second wiring clamp is used to clamp the electrostatic terminal.

[0015] Optionally, the first reel and the second reel are arranged along the front and rear directions of the pipeline refueling truck, one is close to the front of the truck and the other is close to the rear of the truck, and the control component is arranged between the first reel and the second reel.

[0016] Optionally, the first electrostatic conductive wire and / or the second electrostatic conductive wire comprises a metal spiral wire, and the diameter of the metal spiral wire ranges from 2 mm to 10 mm.

[0017] Optionally, the control box includes a box body and the control panel assembled on the box body, and the box body is made of at least one of the following materials: aluminum alloy, stainless steel, carbon steel, and engineering plastic.

[0018] The present application also provides a pipeline refueling vehicle, comprising:

[0019] An electric chassis comprising a chassis frame and a battery pack assembled on the chassis frame; and

[0020] As described above, the electrostatic grounding device is assembled on the chassis frame; the electrostatic grounding device includes a control component, a first electrostatic conductive wire, a second electrostatic conductive wire and a third electrostatic conductive wire; the control component includes a first contact and a second contact; the first contact is electrically connected to the first electrostatic conductive wire and the second electrostatic conductive wire respectively, and the second contact is electrically connected to the chassis frame through the third electrostatic conductive wire.

[0021] The electrostatic grounding device provided in the present application includes a control component, a first electrostatic conductive wire, a second electrostatic conductive wire, and a third electrostatic conductive wire. The control component includes a control box and a contact switch. The contact switch includes a first contact and a second contact. The control box includes a control panel for controlling the closing and opening of the moving contact. The first electrostatic conductive wire is used to electrically connect to the electrostatic terminal of the aircraft. The second electrostatic conductive wire is used to electrically connect to the electrostatic terminal of the aircraft. The third electrostatic conductive wire is used to connect to the chassis frame of the pipeline refueling truck. With such an arrangement, the electrostatic charge generated when the pipeline refueling truck 1 contacts the aircraft is closed by controlling the contact switch through the control panel, thereby forming a circuit with the chassis frame, the third electrostatic conductive wire, the contact switch, the first electrostatic conductive wire, and the aircraft, and another circuit with the chassis frame, the third electrostatic conductive wire, the contact switch, the second electrostatic conductive wire, and the aircraft, thereby leading the electrostatic charge into the control box, thereby preventing the electrostatic charge from discharging and generating sparks, thereby preventing the sparks from causing danger to the external oil and gas mixed environment.

[0022] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Shown is a front view of a pipeline refueling truck;

[0024] Figure 2 Shown is another front view of the pipeline refueling truck;

[0025] Figure 3 for Figure 1 A schematic structural diagram of the bracket of the pipeline refueling vehicle shown;

[0026] Figure 4 for Figure 3 a top view of the bracket shown;

[0027] Figure 5 for Figure 3 a front view of the bracket shown;

[0028] Figure 6 for Figure 3 a side view of the bracket shown;

[0029] Figure 7 for Figure 3 a partial bottom view of the bracket shown;

[0030] Figure 8 Shown is a circuit diagram of the battery pack power supply of the pipeline refueling vehicle of the present application;

[0031] Figure 9 Shown is a circuit diagram of the hydrogen detector for pipeline refueling trucks of the present application for detecting hydrogen;

[0032] Figure 10 Shown is a schematic structural diagram of the connection between the battery pack and the battery management unit of the pipeline refueling vehicle of the present application;

[0033] Figure 11 Shown is a partial circuit block diagram of the connection between the battery pack and the battery management unit of the pipeline refueling vehicle of the present application;

[0034] Figure 12 Shown is a partial circuit block diagram of a specific embodiment of the pipeline refueling vehicle of the present application;

[0035] Figure 13 Shown is a schematic diagram of the internal structure of the battery pack of the pipeline refueling vehicle of the present application;

[0036] Figure 14 Shown is a front view of the lead-acid battery of the pipeline refueling vehicle of the present application;

[0037] Figure 15 Shown is a side view of a lead-acid battery of a pipeline refueling vehicle of the present application;

[0038] Figure 16 Shown is a top view of the lead-acid battery of the pipeline refueling vehicle of the present application;

[0039] Figure 17 Shown is a schematic diagram of the structure of the battery pack of the pipeline refueling vehicle connected to the main plug box in this application;

[0040] Figure 18 Shown is the electrostatic grounding device of a pipeline refueling truck. DETAILED DESCRIPTION

[0041] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. When the following description refers to the drawings, identical numbers in different figures represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of devices consistent with certain aspects of the present application, as detailed in the appended claims.

[0042] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. Unless otherwise defined, technical or scientific terms used in this application should have the ordinary meaning understood by a person of ordinary skill in the art to which this application belongs. The terms "first," "second," and similar words used in this specification and claims do not denote any order, quantity, or importance, but are simply used to distinguish different components. Similarly, the terms "a" or "an" and similar words do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "plurality" or "several" mean two or more. Unless otherwise indicated, the terms "front," "rear," "lower," and / or "upper" and similar words are for convenience only and are not intended to limit to a single position or spatial orientation. The terms "include," "comprising," and similar words mean that the elements or objects preceding the term "include" or "comprising" include the elements or objects listed after the term and their equivalents, and do not exclude other elements or objects. The terms "connected," "connected," and similar words are not limited to physical or mechanical connections and can include electrical connections, whether direct or indirect. As used in this specification and the appended claims, the singular forms "a," "an," "said," 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.

[0043] The present application provides an electrostatic grounding device for a pipeline refueling truck. The electrostatic grounding device includes a control component, a first electrostatic conductive wire, a second electrostatic conductive wire, and a third electrostatic conductive wire. The control component 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 static contact, and the other is a moving contact. The control box includes a control panel for controlling the closing and opening of the moving contact. One end of the first electrostatic conductive wire is electrically connected to the first contact, and the other end is led out from the control box for electrical connection to the electrostatic terminal of the aircraft. One end of the second electrostatic conductive wire is electrically connected to the first contact, and the other end is led out from the control box for electrical connection to the electrostatic terminal of the aircraft. One end of the third electrostatic conductive wire is electrically connected to the second contact, and the other end is led out from the control box for connection to the chassis beam of the pipeline refueling truck.

[0044] The present application also provides a pipeline refueling vehicle, comprising an electric chassis and an electrostatic grounding device. The electric chassis comprises a chassis frame and a battery pack assembled to the chassis frame. The electrostatic grounding device is assembled to the chassis frame.

[0045] The electrostatic grounding device provided in the present application includes a control component, a first electrostatic conductive wire, a second electrostatic conductive wire, and a third electrostatic conductive wire. The control component includes a control box and a contact switch. The contact switch includes a first contact and a second contact. The control box includes a control panel for controlling the closing and opening of the moving contact. The first electrostatic conductive wire is used to electrically connect to the electrostatic terminal of the aircraft. The second electrostatic conductive wire is used to electrically connect to the electrostatic terminal of the aircraft. The third electrostatic conductive wire is used to connect to the chassis frame of the pipeline refueling truck. With such an arrangement, the electrostatic charge generated when the pipeline refueling truck 1 contacts the aircraft is closed by controlling the contact switch through the control panel, thereby forming a circuit with the chassis frame, the third electrostatic conductive wire, the contact switch, the first electrostatic conductive wire, and the aircraft, and another circuit with the chassis frame, the third electrostatic conductive wire, the contact switch, the second electrostatic conductive wire, and the aircraft, thereby leading the electrostatic charge into the control box, thereby preventing the electrostatic charge from discharging and generating sparks, thereby preventing the sparks from causing danger to the external oil and gas mixed environment.

[0046] Figure 1 Shown is a front view of the pipeline refueling vehicle 1. Figure 2 Another front view of the pipeline refueling vehicle 1 is shown. Figure 1 、 Figure 2 As shown, the pipeline refueling vehicle 1 includes a drive wheel 9, a travel motor 112, a top assembly 4, and a top assembly drive motor 113. The travel motor 112 is connected to the drive wheel 9 for driving the drive wheel 9 for movement. The top assembly drive motor 113 is connected to the top assembly 4 for driving the top assembly 4 for operation. In some embodiments, the drive wheel 9 is a rear wheel, and the travel motor 112 is connected to the drive wheel 9 for transmission. When the travel motor 112 is energized, the drive wheel 9 is driven for movement. In some embodiments, the top assembly drive motor 113 is connected to the top assembly 4 for transmission. When the top assembly drive motor 113 is energized, the top assembly 4 is driven for operation.

[0047] Figure 3 for Figure 1 The structure diagram of the bracket 116 of the pipeline refueling vehicle 1 is shown. Figure 1 、 Figure 3As shown, the pipeline refueling vehicle 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 multiple groups of support components 118. The multiple groups of support components 118 are assembled inside the outer frame 117 in upper and lower layers, and the interval between two adjacent groups of support components 118 forms a battery pack storage space 119, and the battery pack 6 is located in the battery pack storage space 119. In one embodiment, the bracket 116 includes two groups of support components 118, and the two groups of support components 118 are divided into upper and lower layers for supporting the battery pack 6. In this way, the vertical space is utilized, thereby reducing the support area occupied in the horizontal direction of the chassis frame 5, making the design space of the chassis frame 5 compact and reasonable, meeting the requirements. A lower battery storage space 119 is formed between two adjacent groups of support components 118, and an upper battery storage space 119 is formed between the top of the outer frame 117 and the uppermost support component 118, so that the battery packs 6 are stacked and placed in the upper and lower battery pack storage spaces 119 of the bracket 116, reducing the support area occupied by the chassis frame 5.

[0048] In some embodiments, the support assembly 118 includes fixed beams 151 and a plurality of rotatable rollers 120 that are arranged in parallel and at intervals. Along the arrangement direction of the fixed beams 151 and the rollers 120, the portion of the outer frame 117 corresponding to the battery pack storage space 119 is provided with a battery pack access port 121 for placing the battery pack 6 in and out. The fixed beams 151 are supported inside the outer frame 117 and are used to fix the outer frame 117, making the outer frame 117 more stable. In addition, the fixed beams 151 are in contact with the bottom of the battery pack 6, participating in supporting the battery pack 6 and increasing the reliability of supporting the battery pack 6. The bottom of the battery pack 6 contacts the plurality of rotatable rollers 120, and the direction of taking the battery pack 6 out and placing it 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 means of the rotation of the plurality of rotatable rollers 120 to reduce the difficulty for the operator to take and place the battery pack 6. Along the length direction of the outer frame 117 (such as Figure 3 The end portion (indicated by the double arrow in the figure) is provided with a battery pack access port 121, which facilitates the insertion and removal of the battery pack 6. In some embodiments, the height of the bracket 116 is 1045 mm, the width is 1110 mm, and the length is 2200 mm.

[0049] In some embodiments, the outer frame 117 includes a bottom frame 122 and first and second side frames 123, 124 assembled to the bottom frame 122 and spaced apart along the length of the rollers 120. Fixed beams 151 connect the first and second side frames 123, 124. The bottom frame 122, along with the first and second side frames 123, 124 on either side of the bottom frame 122, together form the outer frame 117. Fixed beams 151 are connected to the interior of the outer frame 117 and span between the first and second side frames 123, 124 to prevent deformation and enhance the overall stability of the outer frame 117. In some embodiments, fixed beams 151 are also spanned in two layers between the first and second side frames 123, 124, reinforcing the rigidity of the outer frame 117 and improving its overall stability. Furthermore, fixed beams 151 and the multiple rollers 120 work together to support the battery pack 6, effectively supporting the battery pack 6.

[0050] In some embodiments, the first side frame 123 includes multiple first connecting beams 125 connected in a vertical and horizontal manner, and the second side frame 124 includes multiple second connecting beams 126 connected in a vertical and horizontal manner. One end of a fixed beam 151 is connected to the junction of two first connecting beams 125, and the other end of the fixed beam 151 is connected to the junction of two second connecting beams 126. The multiple first connecting beams 125 are connected horizontally and vertically to form the first side frame 123, improving the stability of the first side frame 123. The multiple second connecting beams 126 are connected horizontally and vertically to form the second side frame 124, improving the stability of the second side frame 124. One end of the fixed beam 151 is connected to the intersection of the two first connecting beams 125, and the other end of the fixed beam 151 is connected to the intersection of the two second connecting beams 126. This increases the rigidity of the connection between the fixed beam 151 and the second side frame 123, effectively improving the overall stability of the bracket 116. In some embodiments, the first side frame 123 and the second side frame 124 are symmetrically arranged, thereby providing a stable connection between the fixed beam 151 and the first and second side frames 123 and 124. In some embodiments, the plurality of first connecting beams 125 includes at least five transverse beams and at least four longitudinal beams. The at least five transverse beams include at least three shorter transverse beams positioned at the top of the first side frame 123 and spaced apart between two adjacent longitudinal beams. The at least five transverse beams also include at least two longer transverse beams connected to the longitudinal beams in an upper and lower layer. Furthermore, the connection structure of the plurality of second connecting beams 126 is identical to that of the plurality of first connecting beams 125 and will not be further described here.

[0051] In some embodiments, the outer frame 117 includes a plurality of pads 139 , which are respectively connected to the top surfaces of at least two longer beams for assembling the battery pack 6 .

[0052] In some embodiments, the pipeline refueling vehicle 1 includes a hydrogen detector 114. The bracket 116 also includes a detection bracket 135 assembled to the outer frame 117. The detection bracket 135 is located above the battery storage space 119 and is used to assemble the hydrogen detector 114 for detecting the battery pack 6. The detection bracket 135 is provided above the interior of the outer frame 117 and is located above the battery pack 6. The hydrogen detector 114 assembled on the detection bracket 135 is also located above the battery pack 6. This allows the hydrogen detector 114 to more accurately detect the concentration of hydrogen released by the battery pack 6.

[0053] In some embodiments, the inspection bracket 135 includes a first side support beam 144 and a second side support beam 145 spaced apart along the length of the roller 120. The first side support beam 144 extends horizontally and connects between two adjacent vertically extending first connecting beams 125. The second side support beam 145 extends horizontally and connects between two adjacent vertically extending second connecting beams 126. The first side support beam 144 is located between two adjacent first connecting beams 125 and is lower than the height of the first connecting beams 125. This prevents the first side support beam 144 from protruding from the top of the outer frame 117, preventing the height of the bracket 116 from exceeding 2 mm, complying with the relevant regulations for pipeline refueling vehicles 1. Similarly, the second side support beam 145, located opposite the first side support beam 144, is located between two adjacent second connecting beams 126 and is lower than the height of the second connecting beams 126. This prevents the second side support beam 145 from protruding from the top of the outer frame 117, preventing the height of the bracket 116 from exceeding 2 mm, complying with the relevant regulations for pipeline refueling vehicles 1. In addition, when the battery pack 6 is placed in the battery pack storage space 119 of the bracket 116, there is a reserved space between the top of the battery pack 6 and the top of the outer frame 117. The reserved space is used to increase the installation position and installation space for the first side support beam 144 and the second side support beam 145.

[0054] Figure 4 for Figure 3 A top view of the bracket 116 is shown. Figure 4As shown, in some embodiments, the detection bracket 135 includes a first support beam 146 and a second support beam 147 spaced apart in the longitudinal direction of the parallel roller 120, and the first support beam 146 and the second support beam 147 are respectively connected between the first side support beam 144 and the second side support beam 145. The first support beam 146 and the second support beam 147 are connected perpendicularly between the first side support beam 144 and the second side support beam 145. The height of the first support beam 146 and the second support beam 147 are both lower than the height 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 from the top of the outer frame 117, preventing the height of the bracket 116 from exceeding 2 mm, which meets the relevant regulatory requirements of the pipeline refueling vehicle 1.

[0055] Figure 5 for Figure 3 A front view of the bracket 116 is shown. Figure 6 for Figure 3 A side view of the bracket 116 is shown. Figure 4 、 Figure 5 、 Figure 6 As shown, in some embodiments, the first side support beam 144 and the second side support beam 145 have the same height. The first support beam 146 and the second support beam 147 have the same height. This improves the stability of the structure in which the first side support beam 144 and the second side support beam 145 and the first support beam 146 and the second support beam 147 are connected to each other.

[0056] Continue to refer Figure 3 As shown, in some embodiments, the detection bracket 135 includes a mounting plate 148 connected between the first support beam 146 and the second support beam 147, and the hydrogen detector 114 is mounted on the mounting plate 148. The connection of the hydrogen detector 114 via the mounting plate 148 makes the connection of the hydrogen detector 114 more stable and the installation effect is good.

[0057] In some embodiments, the mounting plate 148 includes multiple mounting holes 149 and at least two through-holes 150; the multiple mounting holes 149 are located between the at least two through-holes 150; and the hydrogen detector 114 is secured to the multiple mounting holes 149. In some embodiments, the hydrogen detector 114 is secured to the multiple mounting holes 149 via bolts. Furthermore, the provision of at least two through-holes 150 on the mounting plate 148 reduces the material and cost of the mounting plate 148, and also reduces the overall weight of the bracket 116, thereby reducing the pressure exerted by the bracket 116 on the chassis frame 5.

[0058] In some embodiments, the bracket 116 further includes a chassis connector 127 located at the bottom end of the bottom frame 122. The chassis connector 127 includes a connecting plate 128 that protrudes downward from the bottom surface of the bottom frame 122 and is used to connect the bracket 116 to the chassis beam 5 of the pipeline refueling truck 1. The chassis connector 127 is used to connect the bottom frame 122 and the chassis beam 5. The connecting plate 128 is supported along the length between the bottom frame 122 and the chassis beam 5, allowing the bracket 116 to be assembled on the chassis beam 5. This provides a simple structure and a good connection. In some embodiments, the length of the connecting plate 128 is the same as the width of the bottom frame 122. This increases the connection area between the bottom frame 122 and the chassis beam 5 and improves the stability of the connection between the bottom frame 122 and the chassis beam 5. In some embodiments, the number of connecting plates 128 includes one, two, three, etc. Preferably, the number of connecting plates 128 is two.

[0059] In some embodiments, the chassis connector 127 includes a first connector 129 and a second connector 130, which are spaced apart and connected to opposite sides of the connecting plate 128. The chassis connector 127 is connected to the chassis frame 5 via the first and second connectors 129, 130. The first and second connectors 129, 130 are provided on the sides of the connecting plate 128. The first connector 129 has a first connecting hole 131, which is bolted to a mounting hole (not shown) on the chassis frame 5 to connect the first connector 129 to the chassis frame 5. Similarly, the second connector 130 has a second connecting hole 132, which is bolted to another mounting hole (not shown) on the chassis frame 5 to connect the second connector 130 to the chassis frame 5. This simple structure provides an effective connection between the connecting plate 128 and the chassis frame 5. In addition, it should be noted that the first connecting member 129 is only provided on one side of the connecting plate 128, and the second connecting member 130 is provided on both sides of the connecting plate 128. In this way, 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 first connecting members 129 provided on one side of the connecting plate 128 is 1, 2, etc., preferably 2. The number of second connecting members 130 provided on the other side of the connecting plate 128 is 1, 2, etc., preferably 2. In some embodiments, the second connecting member 130 has a U-shaped structure.

[0060] In some embodiments, chassis connector 127 further includes a support plate 133 and a reinforcement plate 134. Support plate 133 is a curved structure connected to the bottom end of bottom frame 122 and the side of connecting plate 128. Reinforcement plate 134 is located between the bottom end of bottom frame 122 and the side of connecting plate 128 and is connected to support plate 133. At the junction between bottom frame 122 and connecting plate 128, a portion of support plate 133 is connected to bottom frame 122, while another portion is connected to the side of connecting plate 128. This strengthens the rigidity and stability of the connection between bottom frame 122 and connecting plate 128. The edges of reinforcement plate 134 are connected to the flat surfaces of the two portions of support plate 133 to reinforce the stability of the connection between bottom frame 122 and connecting plate 128. In some embodiments, reinforcement plate 134 is triangular in shape, which provides improved stability.

[0061] In some embodiments, the outer frame 117 is assembled from a hollow tube, and the outer frame 117 forms an opening 136 at the end of the hollow tube. The bracket 116 also includes a seal 137, and the seal 137 seals the opening 136. The interior of the outer frame 117 is hollow, which reduces the overall weight of the bracket 116, thereby reducing the pressure on the chassis beam 5, and reducing the manufacturing cost of the outer frame 117, saving resources. The seal 137 is connected to the opening 136 of the outer frame 117 to prevent impurities such as water and dust from entering the interior of the hollow tube, thereby shortening the service life of the outer frame 117. In some embodiments, the seal 137 is a blocking plate. In some embodiments, the size of the seal 137 matches the size of the opening 136.

[0062] Figure 7 for Figure 3 A partial bottom view of the bracket 116 is shown. Figure 7 As shown, in some embodiments, the outer frame 117 includes a battery pack charging port bracket 152, which is provided at the bottom of the bottom frame 122 and is used to pass the charging cable of the battery pack 6 to connect to an external power source.

[0063] Please refer to Figure 1 In some embodiments, the bracket 116 includes an outer packaging cover 138, which is covered on the outside of the outer frame 117. The outer packaging cover 138 is used to encapsulate the outside of the outer frame 117 and protect the outer frame 117 and the battery pack 6 assembled inside the outer frame 117. In some embodiments, the material of the outer packaging cover 138 includes, but is not limited to, iron sheet.

[0064] Figure 8 The circuit diagram of the battery pack 6 of the pipeline refueling vehicle 1 provided by this application is shown. Figure 8As shown, in some embodiments, the battery pack 6 is electrically connected to the travel motor 112 and the upper body drive motor 113 to supply power to the travel motor 112 and / or the upper body drive motor 113. In this embodiment, the battery pack 6 supplies power to the travel motor 112 and / or the upper body drive motor 113 to ensure normal operation of the travel motor 112 and / or the upper body drive motor 113.

[0065] Figure 9 The circuit diagram of the hydrogen detector 114 of the pipeline refueling vehicle 1 provided by this application is shown. Figure 8 、 Figure 9 As shown, in some embodiments, the pipeline refueling vehicle 1 includes a battery management unit 115. The hydrogen detector 114 is used to detect the hydrogen concentration generated by the battery pack 6 and generate a corresponding electrical signal. The battery management unit 115 is electrically connected to the battery pack 6 and the hydrogen detector 114. The battery management unit 115 is used to collect the electrical signal of the hydrogen detector 114, and when the hydrogen concentration corresponding to the electrical signal reaches the concentration threshold, the battery pack 6 is controlled to stop charging. In the process of charging the battery pack 6, the battery pack 6 may release hydrogen. Since hydrogen is prone to explosion when it reaches a certain concentration in the air, it may cause safety accidents in serious cases. Therefore, the hydrogen concentration around the battery pack 6 can be detected by installing a hydrogen detector 114 near the battery pack 6. Specifically, the battery management unit 115 receives the electrical signal sent by the hydrogen detector 114 regarding the hydrogen concentration in 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 the concentration threshold based on the electrical signal. If it reaches it, the battery management unit 115 controls the battery pack 6 to be disconnected from the external power supply and stops charging. In this way, safety accidents are effectively reduced or avoided, and the design scheme is simple and the detection effect is good. In some embodiments, the hydrogen detector 114 is a hydrogen sensor. In some embodiments, the concentration threshold is 10000PPM. When the hydrogen concentration generated by the battery pack 6 reaches 10000PPM, the pipeline refueling truck 1 issues an alarm to prompt the refueling personnel to cut off the external power supply charging the battery pack 6 to avoid safety accidents.

[0066] Continue to refer Figure 9In some embodiments, the battery pack 6 includes a lead-acid battery 140, which is highly safe and not prone to explosion. The pipeline refueling truck 1 is a dedicated device for safely and quickly transferring aviation fuel from underground wells into aircraft fuel tanks. Therefore, the safety requirements for the pipeline refueling truck 1 are particularly high. The lead-acid battery 140 is monitored by the battery management unit 115 to improve the safety of the lead-acid battery 140 during the charging and discharging process. In some embodiments, the battery pack 6 includes at least four lead-acid batteries 140. The pipeline refueling truck 1 includes at least four collectors 141 electrically connected to the battery management unit 115, which are respectively connected in series with the at least four lead-acid batteries 140 in a one-to-one correspondence, and are used to collect parameter information of the at least four lead-acid batteries 140 and provide it to the battery management unit 115. The battery management unit 115 is used to control the corresponding collector 141 according to the parameter information of the lead-acid battery 140. The at least four collectors 141 are used to collect parameter information of the at least four lead-acid batteries 140 and provide it to the battery management unit 115. The battery management unit 115 then sends corresponding control instructions to the at least four collectors 141 based on the parameter information of the at least four lead-acid batteries 140. The at least four collectors 141 then perform balanced charging on the at least four lead-acid batteries 140 according to the control instructions, thereby balancing the voltages of the at least four lead-acid batteries 140 and extending the service life of the at least four lead-acid batteries 140.

[0067] Please refer to Figure 8 、 Figure 9As shown, in some embodiments, the pipeline refueling vehicle 1 includes a vehicle controller 142 and an all-in-one controller 143, each electrically connected to the battery management unit 115. The vehicle controller 142 is used to detect the operating status of the pipeline refueling vehicle 1 to control the all-in-one controller 143 to distribute the power of the battery pack 6 to at least one of the travel motor 112 and the upper drive motor 113. The travel motor 112 and the upper drive motor 113 are connected to the battery pack 6 through the all-in-one controller 143. The all-in-one controller 143 can distribute the power of the battery pack 6, and can distribute the power to the travel motor 112 but not to the upper drive motor 113, or can distribute the power to the upper drive motor 113 but not to the travel motor 112, or to both the travel motor 112 and the upper drive motor 113. The vehicle controller 142 is the core control component of the entire pipeline refueling vehicle 1. The vehicle controller 142 is used to collect driving signals from the drive wheels 9 and operating status signals from the upper assembly 4. After making corresponding judgments, it controls the all-in-one controller 143 to distribute the power of the battery pack 6 to the travel motor 112, thereby driving the normal driving of the drive wheels 9; or controls the all-in-one controller 143 to distribute the power of the battery pack 6 to the upper assembly drive motor 113, thereby driving the normal operation of the upper assembly 4. This optimizes the power matching of the battery pack 6, monitors the vehicle status of the pipeline refueling vehicle 1, and improves the stability and reliability of the pipeline refueling vehicle 1. In some embodiments, the all-in-one controller 143 can distribute the power of the battery pack 6 to other power-requiring components.

[0068] Figure 10 It is a schematic structural diagram showing the connection between the battery pack 6 and the battery management unit 115 of the pipeline refueling vehicle 1 provided in this application. Figure 11 The figure shows a partial circuit diagram of the connection between the battery pack 6 and the battery management unit 115 of the pipeline refueling vehicle 1 provided by the present application. Figure 10 、 11As shown, in some embodiments, the battery pack 6 includes multiple lead-acid batteries 140 connected in series; the multiple lead-acid batteries 140 include 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 having a positive electrode and the other having a negative electrode. The pipeline refueling vehicle 1 includes a battery management unit 115. The battery management unit 115 is electrically connected to the positive and negative electrodes and is used to monitor parameter information of the battery pack 6 and control the current of the battery pack 6 during charging and discharging. The multiple lead-acid batteries 140 connected in series provide a higher voltage to power the travel motor 112 and the upper drive motor 113 to meet the power voltage requirements of the travel motor 112 and the upper drive motor 113. When the external power supply charges the multiple lead-acid batteries 140, the battery management unit 115 is used to monitor the parameter information (e.g., temperature information, voltage information, etc.) of the multiple lead-acid batteries 140. When the temperature of the multiple lead-acid batteries 140 is detected to exceed a temperature threshold and / or the voltage exceeds a voltage threshold, the power management unit 115 controls the current used to charge the multiple lead-acid batteries 140. Alternatively, during the process of the multiple lead-acid batteries 140 discharging to the travel motor 112 and the upper drive motor 113, the battery management unit 115 may also monitor the temperature, voltage, and other parameter information of the multiple lead-acid batteries 140. When the temperature of the multiple lead-acid batteries 140 is detected to exceed a temperature threshold and / or the voltage exceeds a voltage threshold, the power management unit 115 controls the current used to discharge the multiple lead-acid batteries 140. This configuration enables the pipeline refueling vehicle 1 to be powered by multiple lead-acid batteries 140, and the power management unit 115 controls the current used to charge and discharge the multiple lead-acid batteries 140 to prevent overheating of the multiple lead-acid batteries 140 during the charging and discharging process, which could pose a safety hazard. In some embodiments, the battery management unit 115 is located within a control box, which is an explosion-proof enclosure. In some embodiments, the lead-acid batteries 140 include colloidal lead-acid batteries. Colloidal lead-acid batteries include a colloidal electrolyte that is solid when stationary, making it easier to transport and less likely to leak.

[0069] Figure 12 The diagram shows a partial circuit diagram of a specific embodiment of the pipeline refueling vehicle 1 provided by this application. Figure 12As shown, in some embodiments, the pipeline refueling vehicle 1 includes multiple collectors 141 electrically connected to the battery management unit 115. Each of the multiple collectors 141 is connected one-to-one to each of the multiple lead-acid batteries 140. The collectors 141 are configured to collect parameter information of the multiple lead-acid batteries 140 and provide it to the battery management unit 115. The battery management unit 115 controls the multiple collectors 141 based on the parameter information of the multiple lead-acid batteries 140 to balance charge the multiple lead-acid batteries 140. At least four collectors 141 are configured to collect parameter information of at least four lead-acid batteries 140 and provide it to the battery management unit 115. The battery management unit 115 then sends corresponding control instructions to the at least four collectors 141 based on the parameter information of the at least four lead-acid batteries 140. The at least four collectors 141 then balance charge the at least four lead-acid batteries 140 according to the control instructions, thereby balancing the voltages of the at least four lead-acid batteries 140 and extending the service life of the at least four lead-acid batteries 140.

[0070] In some embodiments, the pipeline refueling vehicle 1 includes a temperature sensor 173 electrically connected to multiple collectors 141. The temperature sensor 173 is used to detect the temperature of the multiple lead-acid batteries 140 and provide the temperature information to the collectors 141. The collectors 141 are used to provide the temperature information to the battery management unit 115. The battery management unit 115 controls the current of the battery pack 6 during charging and discharging based on the temperature information. In this embodiment, the temperature sensor 173 is used to detect the temperature of the multiple lead-acid batteries 140 during the charging and discharging process. The temperature values ​​are collected by the collectors 141 and then provided to the battery management unit 115. If the collected temperature value exceeds the temperature threshold, an alarm is sounded to prompt the operator to stop the corresponding operation. This prevents the multiple lead-acid batteries 140 from overheating during charging and discharging, which may lead to high sulfation of the batteries and reduce battery life, and improves the safety of the multiple lead-acid batteries 140.

[0071] Furthermore, it should be noted that in addition to the multiple lead-acid batteries 140 potentially overheating during charging and discharging, operator error can also cause the multiple lead-acid batteries 140 to overheat. For example, short-circuiting the positive and negative terminals of the multiple lead-acid batteries 140 can cause the multiple lead-acid batteries 140 to overheat, triggering an alarm to prompt the operator to correct the fault and prevent it from worsening.

[0072] In some embodiments, the pipeline refueling vehicle 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 a temperature sensor 173. The vehicle controller 142 is used to control the all-in-one controller 143 to disconnect the battery pack 6 from the travel motor 112 and the upper drive motor 113 if the temperature value detected by the temperature sensor 173 is greater than the temperature threshold. When the temperature sensor 173 detects that the temperature value of the multiple lead-acid batteries 140 is greater than the temperature threshold, the vehicle controller 142 controls the all-in-one controller 143 to disconnect the multiple lead-acid batteries 140 from the travel motor 112 and the upper drive motor 113 based on the corresponding temperature signal sent by the temperature sensor 173. In this way, the multiple lead-acid batteries 140 are prevented from overheating when supplying power to the travel motor 112 and / or the upper drive motor 113, thereby posing a safety hazard. If the collected temperature value is greater than the temperature threshold, the vehicle controller 142 controls the alarm to sound an alarm.

[0073] Figure 13 The figure shows a schematic diagram of the internal structure of the battery pack 6 of the pipeline refueling vehicle 1 provided by the present application. As shown in Figure 13, in some embodiments, the temperature sensor 173 is arranged inside the battery pack 6, and is close to the center of the battery pack 6 relative to the edge of the battery pack 6. Since the temperature at the center of the battery pack 6 dissipates heat slowly, installing the temperature sensor 173 at the center of the battery pack 6 can better reflect the temperature information of the single lead-acid battery 140, so that the temperature information of the battery pack 6 detected by the temperature sensor 173 is more accurate and reliable. In this way, when the temperature of a local area (generally the center area) of the battery pack 6 is high, some of the above-mentioned controls can be performed in time to better improve safety. In some embodiments, at least two temperature sensors 173 are provided inside the battery pack 6.

[0074] Continue to refer Figure 12 In some embodiments, the pipeline refueling vehicle 1 includes an explosion-proof circuit breaker 175 electrically connected between the multiple lead-acid batteries 140 and the battery management unit 115. The explosion-proof circuit breaker 175 provides overload and short-circuit protection. By providing the explosion-proof circuit breaker 175 between the output terminals of the multiple lead-acid batteries 140 and the input terminals of the battery management unit 115, the current supplied by the multiple lead-acid batteries 140 to the battery management unit 115 is prevented from overloading, thereby protecting the battery management unit 115.

[0075] Figure 14 Shown is a front view of the lead-acid battery 140 of the pipeline refueling vehicle 1 provided in this application. Figure 15 Shown is a side view of the lead-acid battery 140 of the pipeline refueling vehicle 1 provided by the present application. Figure 16 The figure shows a top view of the lead-acid battery 140 of the pipeline refueling vehicle 1 provided by the present application. Figure 14-16As shown, in some embodiments, the lead-acid battery 140 includes a housing 176 and a battery cell (not shown) disposed within the housing 176; a vent 177 is provided on a sidewall of the housing 176, and the vent 177 communicates with the interior of the housing 176. The vent 177 provided on the sidewall of the housing 176 allows gas generated by the battery cell (not shown) within the housing 176 to be discharged in a timely manner, thereby preventing the gas from affecting the battery cell (not shown) and improving safety.

[0076] like Figure 16 As shown, in some embodiments, the lead-acid battery 140 includes a spring handle 178. The spring handle 178 includes a handle portion 179 and a connecting portion 180 that are interconnected. The connecting portion 180 is connected to the outer side of the housing 176. The spring handle 178 is provided on the housing 176 of the lead-acid battery 140 to facilitate the operator to open the lead-acid battery 140. Specifically, the operator manually pulls the handle portion 179 to open the lead-acid battery 140. This structure is simple and easy to operate.

[0077] like Figure 15 As shown, in some embodiments, the lead-acid battery 140 includes a plurality of hanging members 186 distributed and connected to the outer wall of the housing 176; the hanging members 186 include a mounting plate 181 and a hanging hole 182 located in the middle of the mounting plate 181, and the mounting plate 181 is connected to the outer wall of the housing 176. In this embodiment, the plurality of hanging members 186 are provided on the outer wall of the housing 176 to facilitate the use of a crane to hang the lead-acid battery 140 by connecting to the hanging members 186, thereby reducing the difficulty of installing or removing the lead-acid battery 140.

[0078] Figure 17A schematic diagram illustrating the battery pack 6 of the pipeline refueling vehicle 1 of the present application connected to a main plug box 183 is shown. As shown in FIG17 , in some embodiments, the pipeline refueling vehicle 1 includes a main plug box 183, which comprises a housing 184 and multiple plug connectors 185 disposed within the housing 184. Each of the multiple plug connectors 185 is electrically connected to a plurality of lead-acid batteries 140 in a one-to-one correspondence. The multiple lead-acid batteries 140 are connected in series through the main plug box 183, generating a positive and a negative terminal, which in turn provide power to the travel motor 112 and the upper drive motor 113. This improves the safety of the electrical connection between the multiple lead-acid batteries 140 and the travel motor 112 and the upper drive motor 113. Specifically, the main plug box 183 is provided with a number of plug connectors 185 corresponding to the number of lead-acid batteries 140. Multiple plug connectors 185 are connected to corresponding lead-acid batteries 140. Furthermore, the positive and negative terminals of the multiple plug connectors 185 are connected to each other, with the positive and negative terminals of the plug connectors 185 at the beginning and end of the multiple plug connectors 185 leading out, respectively. The travel motor 112 and the upper body drive motor 113 are connected to the main plug box 183 via these positive and negative terminals.

[0079] Please continue to refer to Figure 10 As shown, in some embodiments, the plug of the lead-acid battery 140 is equipped with auxiliary contacts 174, which electrically connect the lead-acid battery 140 to the battery management unit 115 via the auxiliary contacts 174. The addition of auxiliary contacts 174 to the plug of the lead-acid battery 140 prevents arcing when the lead-acid battery 140 is plugged in or out of the battery management unit 115 while the battery is charged, thereby improving safety. In some embodiments, the auxiliary contacts 174 are located between the plug connector 185 and the battery management unit 115.

[0080] In some embodiments, the battery pack 6 includes at least four lead-acid batteries 140. In some embodiments, the at least four lead-acid batteries 140 have a total voltage of 360V, a total charge of 200AH, and a total energy of 72kWh. In some embodiments, the at least four lead-acid batteries 140 have a total weight of no more than 3.0 tons, preferably 2720kg.

[0081] In some embodiments, multiple lead-acid batteries 140 are assembled in layers on the chassis frame 5. Specifically, at least two lead-acid batteries 140 are stacked in a group. This arrangement reduces the support area of ​​the chassis frame 5 and creates a compact and reasonable overall layout.

[0082] In some embodiments, each lead-acid battery 140 has a length of 980 mm, a width of 930 mm, and a height of 300 mm.

[0083] Figure 18 The electrostatic grounding device 86 of the pipeline refueling vehicle 1 is shown. Figure 18As shown, in some embodiments, the pipeline refueling truck 1 includes an electrostatic grounding device 86, which is assembled to the chassis frame 5. The electrostatic grounding device 86 is connected to the chassis frame 5, which is in turn connected to the ground via wheels. Thus, when the pipeline refueling truck 1 is refueling an aircraft, the electrostatic grounding device 86 is connected to the aircraft, allowing static electricity generated by contact with the aircraft to be dissipated to the ground. This eliminates static electricity hazards that may occur when the pipeline refueling truck 1 is connected to the aircraft.

[0084] In some embodiments, the electrostatic grounding device 86 includes a control assembly 87, a first electrostatic conductive wire 88, a second electrostatic conductive wire 89, and a third electrostatic conductive wire 90. The control assembly 87 includes a control box 91 and a contact switch 92 assembled within the control box 91. The contact switch 92 includes a first contact 93 and a second contact 94, one of which is a stationary contact and the other is a moving contact. The control box 91 includes a control panel 95 for controlling the closing and opening of the moving contact. The first electrostatic conductive wire 88 has one end electrically connected to the first contact 93 and the other end extending from the control box 91 for electrical connection to an electrostatic terminal 96 on an aircraft. The second electrostatic conductive wire 89 has one end electrically connected to the first contact 93 and the other end extending from the control box 91 for electrical connection to an electrostatic terminal 96 on an aircraft. The third electrostatic conductive wire 90 has one end electrically connected to the second contact 94 and the other end extending from the control box 91 for electrical connection to the chassis beam 5 of the pipeline refueling vehicle 1. In the related art, since the amount of electrostatic charge of the pipeline refueling vehicle 1 cannot be estimated, when the amount of charge is large, the sparks generated by the discharge cannot be avoided at the moment of connecting the aircraft and the ground through the electrostatic grounding device, which can easily cause safety accidents. Therefore, in this application, the above problem is solved by setting a control component 87. Specifically, when the pipeline refueling vehicle 1 needs to refuel the aircraft, the first electrostatic conductive wire 88 is electrically connected to the first electrostatic terminal, and the second electrostatic conductive wire 89 is electrically connected to the second electrostatic terminal, and then the first contact 93 and the second contact 94 are controlled to be electrically connected through the control panel 95, that is, the contact switch 92 is closed, so that the chassis frame 5, the third electrostatic conductive wire 90, the contact switch 92, the first electrostatic conductive wire 88 and the aircraft form a loop, and the chassis frame 5, the third electrostatic conductive wire 90, the contact switch 92, the second electrostatic conductive wire 89 and the aircraft form another loop. In this way, the static charge generated when the pipeline refueling vehicle 1 contacts the aircraft is led into the control box 91, thereby preventing the static charge from discharging and generating sparks, thereby preventing the sparks from causing danger to the external oil-gas mixture environment. In addition, the first static conductive wire 88 is electrically connected to the first static terminal, and the second static conductive wire 89 is electrically connected to the second static terminal, and the first contact 93 and the second contact 94 are not electrically connected. At this time, the moment the pipeline refueling vehicle 1 contacts the aircraft, no sparks will be generated due to discharge, and thus no danger will be caused to the external oil-gas mixture environment. In this way, by setting a contact switch 92, the static charge generated by the first static conductive wire 88 and / or the second static conductive wire 89 connected to the aircraft and the earth can be led into the control box 91, and the characteristics of the control box 91 can be used to prevent sparks from being generated during discharge, thereby preventing the sparks from causing danger to the external oil-gas mixture environment. In some embodiments, the control box 91 is an explosion-proof box.

[0085] In some embodiments, the electrostatic grounding device 86 further includes a first reel support 99 and a first reel 100 rotatably mounted on the first reel support 99. The first electrostatic 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 support 99. The first terminal connection line 102 is wound around the first reel 100, one end is electrically connected to the first reel support 99, and the other end is used to electrically connect to the electrostatic terminal 96. The first reel support 99 is used to be assembled to the chassis frame 5 and is insulated from the chassis frame 5. The first reel 100 is assembled to the first reel support 99. The first reel 100 is used to collect the first terminal connection line 102. The first reel support 99 is made of metal and can electrically connect the first terminal connection line 102 and the first switch connection line 101. When the first terminal connection line 102 is electrically connected to the electrostatic terminal 96 and the contact switch 92 is closed, the electrostatic terminal 96, the first terminal connection line 102, the first switch connection line 101, the third electrostatic conductive line 90, and the chassis frame 5 form a loop, thereby directing the generated static charge into the control box 91, preventing the generation of sparks during the discharge of the static charge, and thus preventing the sparks from posing a danger to the external oil-gas mixture environment. The first reel bracket 99 is insulated from the chassis frame 5, preventing the first reel bracket 99 from being electrically connected to the chassis frame 5, thereby preventing the static charge from being directed into the control box 91.

[0086] In some embodiments, the electrostatic grounding device 86 further includes a first clamp 103 connected to the first terminal connection line 102. The first clamp 103 is used to clamp the electrostatic terminal 96. The first clamp 103 is connected to the end of the first terminal connection line 102 away from the first switch connection line 101. By clamping the electrostatic terminal 96 with the first clamp 103, the aircraft is electrically connected to the electrostatic grounding device 86. This structure is simple and convenient for refueling personnel to operate.

[0087] In some embodiments, the electrostatic grounding device 86 further includes a second reel support 104 and a second reel 105 rotatably mounted on the second reel support 104. The second electrostatic conductive line 89 includes a second switch connection line 106 and a second terminal connection line 107. One end of the second switch connection line 106 is electrically connected to the second contact 94 and the other end is electrically connected to the second reel support 104. The second terminal connection line 107 is wound around the second reel 105, one end of which is electrically connected to the second reel support 104 and the other end of which is electrically connected to the electrostatic terminal 96. The second reel support 104 is assembled to the chassis frame 5 and is insulated from the chassis frame 5. The second reel 105 is assembled to the second reel support 104. The second reel 105 is used to collect the second terminal connection line 107. The second reel support 104 is made of metal and can electrically connect the second terminal connection line 107 to the second switch connection line 106. When the second terminal connection line 107 is electrically connected to the electrostatic terminal 96 and the contact switch 92 is closed, the electrostatic terminal 96, the second terminal connection line 107, the second switch connection line 106, the third electrostatic conductive line 90, and the chassis frame 5 form a loop, thereby directing the generated static charge into the control box 91, preventing the generation of sparks during the discharge of the static charge, and thus preventing the sparks from posing a danger to the external oil-gas mixture environment. The second reel bracket 104 is insulated from the chassis frame 5, preventing the second reel bracket 104 from being electrically connected to the chassis frame 5, thereby preventing the static charge from being directed into the control box 91.

[0088] In some embodiments, the electrostatic grounding device 86 includes an insulating pad 108 disposed between the bottom of the first reel 100 and the second reel 105 and the chassis frame 5. The first reel 100 and the second reel 105 are insulated from the chassis frame 5 by the insulating pad 108. The insulating pad 108 is primarily used in distribution rooms and substations for laying the floor of distribution facilities, providing insulation to prevent leakage between the first reel 100 and the second reel 105 and avoid safety accidents. In some embodiments, the insulating pad 108 comprises a rubber pad.

[0089] In some embodiments, the thickness of the insulating pad 108 ranges from 4 mm to 5 mm, thereby achieving a better insulation effect.

[0090] In some embodiments, the electrostatic grounding device 86 further includes a second clamp 109 connected to the second terminal connection line 107. The second clamp 109 is used to clamp the electrostatic terminal 96. The second clamp 109 is connected to the end of the second terminal connection line 107 away from the second switch connection line 106. By clamping the electrostatic terminal 96 with the second clamp 109, the aircraft is electrically connected to the electrostatic grounding device 86. This structure is simple and convenient for refueling personnel to operate.

[0091] In some embodiments, a first reel 100 (such as the left reel in the figure) and a second reel 105 (such as the right reel in the figure) are arranged along the front-to-back direction of the pipeline refueling vehicle 1, one close to the front of the vehicle and the other close to the rear of the vehicle. The control component 87 is disposed between the first reel 100 and the second reel 105. Considering that when the pipeline refueling vehicle 1 drives to the refueling port of the aircraft, the front of the pipeline refueling vehicle 1 and the front of the aircraft are in different directions, or the front of the pipeline refueling vehicle 1 and the front of the aircraft are in the same direction, if only one reel is provided and one corresponding wiring clamp is provided, it is inconvenient to connect the wiring clamp to the aircraft's electrostatic terminal 96. Therefore, the electrostatic grounding device 86 is provided with two reels, one at the front and one at the rear of the vehicle. The two reels each correspond to two wiring clamps, so that the refueling personnel can easily select the wiring clamp that is closer to the aircraft's electrostatic terminal 96 to clamp the electrostatic terminal 96, thereby reducing the difficulty of the refueling personnel. For example, when the front of the pipeline refueling truck 1 and the front of the aircraft are in the same direction, the second reel 105 is closer to the electrostatic terminal 96 of the aircraft than the first reel 100, so the refueling personnel can clamp the second terminal clamp 109 corresponding to the second reel 105 on the electrostatic terminal 96; or when the front of the pipeline refueling truck 1 and the front of the aircraft are in different directions, the first reel 100 is closer to the electrostatic terminal 96 of the aircraft than the second reel 105, so the refueling personnel can clamp the first terminal clamp 103 corresponding to the first reel 100 on the electrostatic terminal 96.

[0092] In some embodiments, first static conductive wire 88 and / or second static conductive wire 89 comprise a metal spiral wire having a diameter ranging from 2 mm to 10 mm. The metal spiral wire is compact and lightweight, thereby reducing the overall weight of electrostatic grounding device 86. Furthermore, the metal spiral wire has excellent electrical conductivity.

[0093] 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, stainless steel, carbon steel, or engineering plastic. The control panel 95 assembled within the box body 110 is used to control the opening and closing of the contact switch 92. In some embodiments, the control panel 95 includes a controller. Aluminum alloy, stainless steel, carbon steel, and engineering plastic materials have advantages such as light weight, ease of movement, good shock absorption, impact resistance, corrosion resistance, heat resistance, and suitability for harsh and complex environments. Using at least one of these materials to manufacture the box body 110 provides excellent explosion-proof performance and a long service life.

[0094] The above description is merely a preferred embodiment of the present application and does not constitute any form of limitation to the present application. Although the present application has been disclosed as a preferred embodiment as above, it is not intended to limit the present application. Any technician familiar with this profession can make some changes or modifications to the equivalent embodiment of the above-disclosed technical content without departing from the scope of the technical solution of the present application. However, any simple modification, equivalent change and modification of the above embodiment based on the technical essence of the present application that does not depart from the content of the technical solution of the present application still falls within the scope of the technical solution of the present application.

Claims

1. An electrostatic grounding device for a pipeline refueling vehicle, characterized in that: include: A control assembly comprising a control box and a contact switch assembled in the control box, the contact switch comprising a first contact and a second contact, one of the first contact and the second contact being a stationary contact and the other being a moving contact, the control box comprising a control panel for controlling the closing and opening of the moving contact; a first electrostatic conductive wire, one end of which is electrically connected to the first contact, and the other end of which is led out from the control box and is used to be electrically connected to the electrostatic terminal of the aircraft; a second electrostatic conductive wire, one end of which is electrically connected to the first contact, and the other end of which is led out from the control box and is used to be electrically connected to the electrostatic terminal of the aircraft; and a third electrostatic conductive wire, one end of which is electrically connected to the second contact, and the other end of which is led out from the control box and is used to be electrically connected to the chassis beam of the pipeline refueling vehicle; The electrostatic grounding device further includes a first reel bracket and a first reel rotatably mounted on the first reel bracket. The first electrostatic conductive line includes a first switch connecting line and a first terminal connecting line. One end of the first switch connecting line is electrically connected to the first contact and the other end is electrically connected to the first reel bracket. The first terminal connecting line is wound around the first reel, one end of the first reel bracket is electrically connected to the first reel bracket, and the other end is used to be electrically connected to the electrostatic terminal. The first reel bracket is used to be assembled to the chassis beam and is insulated from the chassis beam. The electrostatic grounding device further includes a first terminal clamp connected to the first terminal connection line, the first terminal clamp being used to clamp the electrostatic terminal; The electrostatic grounding device also includes a second reel bracket and a second reel rotatably arranged on the second reel bracket, the second electrostatic conductive line includes a second switch connecting line and a second terminal connecting line, one end of the second switch connecting line is electrically connected to the second contact, and the other end is electrically connected to the second reel bracket, the second terminal connecting line is wound on the second reel, one end is electrically connected to the second reel bracket, and the other end is used to be electrically connected to the electrostatic terminal, the second reel bracket is used to be assembled on the chassis beam, and is insulated from the chassis beam.

2. The electrostatic grounding device according to claim 1, characterized in that: The electrostatic grounding device includes an insulating pad, which is arranged between the bottom of the first reel and the second reel and the chassis beam; the first reel and the second reel are insulated from the chassis beam by the insulating pad.

3. The electrostatic grounding device according to claim 2, characterized in that: The thickness of the insulating pad ranges from 4 mm to 5 mm.

4. The electrostatic grounding device according to claim 1, characterized in that: The electrostatic grounding device further includes a second wiring clamp connected to the second terminal connection line, and the second wiring clamp is used to clamp the electrostatic terminal.

5. The electrostatic grounding device according to claim 1, characterized in that: The first reel and the second reel are arranged along the front and rear directions of the pipeline refueling vehicle, one is close to the front of the vehicle and the other is close to the rear of the vehicle, and the control component is arranged between the first reel and the second reel.

6. The electrostatic grounding device according to claim 1, characterized in that: The first electrostatic conductive wire and / or the second electrostatic conductive wire include a metal spiral wire, and the diameter of the metal spiral wire ranges from 2 mm to 10 mm.

7. The electrostatic grounding device according to claim 1, characterized in that: The control box includes a box body and the control panel assembled on the box body, and the box body is made of at least one of the following materials: aluminum alloy, stainless steel, carbon steel, and engineering plastic.

8. A pipeline refueling vehicle, characterized in that: include: An electric chassis, comprising a chassis frame and a battery pack assembled on the chassis frame; and The electrostatic grounding device as described in any one of claims 1 to 7 above is assembled on the chassis frame; the electrostatic grounding device includes a control component, a first electrostatic conductive wire, a second electrostatic conductive wire and a third electrostatic conductive wire; the control component includes a first contact and a second contact; the first contact is electrically connected to the first electrostatic conductive wire and the second electrostatic conductive wire, respectively, and the second contact is electrically connected to the chassis frame through the third electrostatic conductive wire.

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