A static conductive towing belt for oil tank truck

Abstract

The present invention discloses a static conductive towing belt for oil tank trucks, which is arranged at the rear of the oil tank truck to realize the equipotential state between the vehicle and the ground, and comprises a towing belt body and a fixed cover, wherein the towing belt body comprises an external rubber layer and a conductive strip arranged in the external rubber layer and extending along the length direction of the towing belt body, one end of the towing belt body is fixed to the oil tank truck through the fixed cover, and the other end has a conductive strip that penetrates the external rubber layer and contacts the ground for conducting electricity; an elastic telescopic mechanism is arranged on the towing belt body, and the folded or curled part of the towing belt body is received in the elastic telescopic mechanism to form a telescopic part, and the telescopic part is elastically limited by the elastic telescopic mechanism; a counterweight is arranged at the grounded end of the towing belt body, and the mass of the counterweight is greater than the maximum elastic limiting force of the elastic telescopic mechanism. The present invention uses the provided counterweight and telescopic mechanism, so that when the height of the vehicle changes due to the change of the load weight, the counterweight also keeps in contact with the ground continuously, thereby realizing the effect of automatic lifting.

Description

Technical Field

[0001] The invention belongs to the technical field of static electricity conduction equipment, and in particular relates to a static electricity conduction towing zone for a tank truck. Background Art

[0002] An electrostatic mop strip is a device installed on a vehicle or mobile equipment. Its function is to conduct away the static charge generated by friction, vibration, etc. during the driving of the vehicle by contacting the ground, so as to prevent spark discharge caused by static electricity accumulation, thereby avoiding safety accidents such as fire or explosion. This is especially true for vehicles used in flammable and explosive environments, such as tank trucks and chemical transport trucks. The electrostatic mop strip is usually made of conductive materials, such as metal wire or conductive rubber, to ensure good conductivity and maintain continuous contact with the ground when the vehicle is driving.

[0003] During the transportation of oil tankers and tank aircraft refueling trucks, the oil shakes back and forth, causing friction with the metal wall of the oil tank, thus generating static electricity. When the static electricity reaches a certain level, sparks will be generated, causing the fuel tank to explode. The tail of the oil tanker will be connected to an electrostatic drag strip, which is a rubber flat belt with two sets of thick copper wires in the middle connected to the tank body. When the oil tanker is moving, the static electricity generated by the friction between the body and the oil in the oil tank will be introduced into the ground through the thick copper wire, thereby ensuring the safety of the oil tanker. After the oil tanker completes the aircraft refueling operation, it is in a state of not full tank or empty vehicle. As the chassis rises, the drag strip often fails to be effectively grounded. In the state of not full tank, the oil vapor space in the oil tanker is large. If the static electricity generated cannot be guided away in time, the risk of fire and explosion of the oil tanker is very high. At the same time, it has been observed that the oil tanker that distributes oil products also has the same problem.

[0004] There are some automated devices in the prior art that use motors or other electrical mechanisms to achieve the telescopic effect of the towing zone. However, due to the special power requirements of tank trucks, the vehicle body itself does not have the conditions to directly output high-power DC or AC power, and it is not allowed to set up a separate high-power power supply. Not only is the cost high and the stability poor, but the complex mechanism is set up to solve a relatively simple problem, which itself does not meet the requirements of technological development. Summary of the invention

[0005] In order to solve the problems existing in the prior art, the present invention provides a static conductive drag zone structure for a tank truck, which can always maintain a grounded state by automatically adjusting the length according to the change of the vehicle body height.

[0006] The technical solution adopted by the present invention is:

[0007] In a first aspect, the present invention discloses a static conductive towing belt for a tank truck, which is arranged at the rear of the tank truck to achieve an equal potential state between the vehicle and the ground, and comprises a towing belt body and a fixed cover, wherein the towing belt body comprises an external rubber layer and a conductive strip arranged in the external rubber layer and extending along the length direction of the towing belt body, wherein one end of the towing belt body is fixed to the tank truck through the fixed cover, and the other end has a conductive strip passing through the external rubber layer and contacting the ground to conduct electricity;

[0008] An elastic telescopic mechanism is provided on the towing belt body, and a folded or curled portion of the towing belt body is received in the elastic telescopic mechanism to form a telescopic portion, and the telescopic portion is elastically limited by the elastic telescopic mechanism;

[0009] A counterweight is arranged at the grounded end of the towing belt body, and the mass of the counterweight is greater than the minimum elastic limiting force of the elastic telescopic mechanism.

[0010] In combination with the first aspect, the present invention provides a first implementation manner of the first aspect, wherein the counterweight is a counterweight conductive block in conductive contact with the conductive strip, and the counterweight conductive block wraps the end of the towing belt body.

[0011] In combination with the first implementation of the first aspect, the present invention provides a second implementation of the first aspect, wherein the counterweight conductive block is a cylindrical structure, and a plurality of metal wires are covered on the curved surface of the counterweight conductive block.

[0012] In combination with the first aspect or several embodiments of the first aspect, the present invention provides a third embodiment of the first aspect, wherein the elastic telescopic mechanism is a reel, the towing body is curled and stored in the reel, a torsion spring is provided at the reel shaft for providing elastic force to retract the towing body inward, and the length of the telescopic portion of the towing body in the reel is greater than the height difference between the tank truck when empty and fully loaded.

[0013] In combination with the first aspect or several embodiments of the first aspect, the present invention provides a fourth embodiment of the first aspect, wherein the elastic telescopic mechanism comprises at least two clips and an elastic member connecting the two clips, and the clips are clamped on the towing body by deformation or bolts;

[0014] The telescopic portion of the towing body is folded and stored between the two clips, the elastic member always provides elastic force to tighten the two clips, and the length of the telescopic portion of the towing body between the clips is greater than the height difference between the empty and fully loaded tank trucks.

[0015] In combination with the fourth embodiment of the first aspect, the present invention provides a fifth embodiment of the first aspect, wherein the clip is a sheet body that is clamped on both sides of the towing body and interlocked with each other, and both ends of the clip have ends that are tightened and fixed by bolts, and the end of the elastic member is clamped and fixed between the ends of the clip.

[0016] In combination with the fourth implementation manner of the first aspect, the present invention provides a sixth implementation manner of the first aspect, wherein the elastic member is a spring.

[0017] In combination with the first aspect or several embodiments of the first aspect, the present invention provides a seventy-fourth embodiment of the first aspect, wherein a detection box is also provided on the towing body, and a power module and a mutual inductor are provided in the detection box. The power module in the detection box has a line that passes through and is connected to the conductive strip, and the detection box also connects the power module to the tank truck distribution module through a cable.

[0018] In combination with the seventh embodiment of the first aspect, the present invention provides an eighth embodiment of the first aspect, wherein the detection box is arranged between the fixing cover and the towing body, the fixing cover is provided with a conductive fixing screw passing through the detection box and the towing body, the conductive fixing screw passes through the towing body and is electrically connected to the conductive strip; the power supply module in the detection box has a detection circuit connected to the conductive fixing screw, and the mutual inductor is arranged on the detection circuit.

[0019] In combination with the eighth embodiment of the first aspect, the present invention provides a ninth embodiment of the first aspect, wherein the fixing cover is further provided with a fixing hole, the towing body is provided with a fixing screw penetrating the detection box, and the fixing screw passes through the fixing hole and is fixed by bolts.

[0020] The beneficial effects of the present invention are:

[0021] (1) The present invention utilizes the long length of the towing belt by providing a counterweight and a telescopic mechanism, folding or curling it to form a telescopic portion, and then using the elastic telescopic mechanism to limit it to maintain an elastic force. The counterweight itself will overcome the elastic force and pull the entire towing belt body downward until the counterweight is stable on the ground. At this time, the elastic member is continuously stretched. Once the height of the vehicle changes due to the change in load weight, the counterweight also continues to maintain contact with the ground, thereby achieving an automatic lifting effect;

[0022] (2) The present invention uses an optimized reel or clip to achieve a simple and efficient structure, and can utilize the bendable and foldable characteristics of the towing body, and can also achieve the effect of adjusting the length of the towing body;

[0023] (3) The present invention integrates a detection box structure, which can be connected to the vehicle's independent detection control cabinet, and access the safety detection current through the isolation fence provided in the control cabinet, thereby realizing real-time monitoring of the grounding status of the electrostatic drag zone, thereby improving safety and having a low application cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is an isometric view of an embodiment of the present invention in which a towing zone is arranged on a bumper bar of a vehicle;

[0025] Figure 2 is a side view of a tow belt arranged on a bumper bar of a vehicle in an embodiment of the present invention;

[0026] Figure 3 is a front view of a mopping zone arranged on a bumper bar of a vehicle in an embodiment of the present invention;

[0027] Figure 4 is a side view of a mop belt according to an embodiment of the present invention;

[0028] Figure 5 is a first axonometric view of a mopping belt according to an embodiment of the present invention;

[0029] Figure 6 It is a second isometric view of a mop belt according to an embodiment of the present invention.

[0030] In the figure: 1-anti-collision bar, 2-tow belt body, 3-counterweight conductive block, 4-detection box, 5-fixing cover, 501-fixing hole, 6-conductive fixing screw, 7-clamp, 8-elastic member, 9-anti-slip rod. DETAILED DESCRIPTION

[0031] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments.

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0035] In the description of this application, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, if the terms "first", "second", etc. appear in the description of this application, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0036] In addition, if the terms "horizontal" or "vertical" appear in the description of this application, it does not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0037] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0038] Embodiment 1:

[0039] This embodiment provides a tanker truck static conductive drag zone, which is arranged at the rear of the tanker truck to achieve the same potential state between the vehicle and the ground. Figure 1-Figure 3 , wherein the static conductive drag zone is arranged on the anti-collision bar 1 at the rear of the tanker truck and fixed by bolts. In this embodiment, only one is provided, and in actual application, two can be provided according to the requirements to improve the stability.

[0040] Specifically, the electrostatic conductive towing zone includes two parts: a towing body 2 and a fixed cover 5, wherein the fixed cover 5 is connected to the main equipotential part of the tanker truck, and the fixed cover 5 is connected to one end of the towing body 2. There are many connection methods. In this embodiment, the material used is not limited to the fixed cover 5. In order to ensure that the towing body 2 is electrically conductively connected to the vehicle body, its fixed connection method is limited.

[0041] The towing belt body 2 includes an outer rubber layer and an inner conductive strip, the conductive strip is exposed at both ends of the towing belt body 2, one end of which is fixed to the bumper 1 of the vehicle body by a fixing cover 5, and is directly in contact with the exposed metal part of the bumper 1. The lower end of the conductive strip is in contact with the ground along with the end of the outer rubber layer touching the ground, thereby achieving a conductive relationship between the vehicle body and the ground.

[0042] In order to keep the vehicle body grounded at all times, an elastic telescopic structure is provided on the towing body 2. The elastic telescopic structure is based on the existing Japanese-shaped buckle structure for adjusting the length of the towing body 2 and is arranged in the middle of the towing body 2. A part of the towing body 2 can be curled and wound to form a telescopic portion, the length of which can be adjusted according to demand, and then the telescopic portion is restricted by the elastic telescopic structure to maintain the telescopic state.

[0043] Then, a counterweight is provided at the lower part of the towing body 2 where the elastic telescopic structure is provided. The weight of the counterweight is greater than the minimum elastic limiting force of the elastic telescopic structure, that is, the counterweight can at least pull out a part of the telescopic part through its own gravity, thereby achieving the purpose of adjusting the length of the entire towing body 2.

[0044] When the entire tanker is in a fully loaded or heavily loaded state, the towing body 2 arranged at the rear of the vehicle is pulled by the counterweight so that the lower end of the towing body 2 contacts the ground. At this time, when the distance from the upper end of the towing body 2 to the ground is less than the length of the telescopic part of the towing body 2 in the fully retracted state, the entire counterweight will touch the ground, thereby keeping the lower end of the towing body 2 always in contact with the ground.

[0045] When the load of the entire tanker changes, the body becomes lighter and begins to rise. Once the telescopic part of the towing body 2 remains in a fully retracted state and its length is less than the distance to the ground, the counterweight will be briefly suspended. At this time, the counterweight stretches the telescopic part until the lower end of the towing body 2 touches the ground, thereby achieving adaptive adjustment. In this state or when the tanker is empty, the specific weight of the counterweight will be adjusted according to the length of the telescopic part and the actual distance between the tanker and the ground. It is only necessary to ensure that the lower end of the towing body 2 touches the ground. The counterweight can be moved up a certain distance and only needs to be kept at the bottom of the telescopic part. Its weight can ensure that the towing body 2 touches the ground, but the counterweight does not need to touch the ground. In order to illustrate these settings, the following content provides several implementation methods for illustration.

[0046] In one embodiment, the counterweight is a triangular identification structure simply clamped on the towing body 2, which itself is a structure composed of two triangular metal nameplates fastened by bolts. The metal nameplate on the surface of the structure records the exit information of the electrostatic towing, and then the weight adjustment is achieved by clamping counterweight blocks of different thicknesses inside.

[0047] In this embodiment, the telescopic amount of the telescopic part exceeds the change in the distance between the vehicle body and the ground, the weight of the counterweight is greater than the elastic force value of the middle telescopic amount of the elastic telescopic structure, and less than the elastic force value of the maximum telescopic amount of the elastic telescopic structure. In this way, the counterweight can touch the ground or be suspended in the air.

[0048] In one embodiment, the counterweight is a cylindrical counterweight conductive block 3 structure, which is arranged at the end of the towing body 2. The counterweight conductive block 3 has a mass of 2kg, and its surface is covered with metal wire to enhance the conductivity. The mass of the counterweight is greater than the maximum elastic limiting force of the elastic telescopic structure, ensuring that when the vehicle chassis is raised, the counterweight can overcome the elastic force of the elastic telescopic structure and pull the towing body 2 downward. The length of the towing body 2 is 600mm, and the elastic coefficient of the external elastic telescopic structure is designed to be 50N / m to ensure that the counterweight can pull the towing body 2 to release the folding part when it is suspended. A folding redundant part is provided on the towing body 2, and the length of the folding part is twice the height difference between the chassis when the vehicle is unloaded and fully loaded. For example, when the chassis height of the vehicle is 500mm when unloaded and 400mm when fully loaded, the length of the folding part is 200mm. When the vehicle is unloaded, the chassis height is high and the counterweight is suspended. Under the action of gravity, the towing body 2 is pulled downward, the elastic telescopic structure is stretched, and the length of the towing body 2 increases; when the vehicle is fully loaded, the chassis height is lowered, the counterweight touches the ground, the ground support force offsets the gravity of the counterweight, the elastic telescopic structure stops stretching, and the length of the towing body 2 remains unchanged.

[0049] Furthermore, the counterweight conductive block 3 also has a roller structure, which can always contact the ground and maintain rolling contact with the ground to reduce wear. The entire roller can be made of metal material to achieve the effect of grounding and conductivity.

[0050] In the above-mentioned implementation manner, there are multiple optimization and limitation methods for the specific method of counterweight, and the corresponding elastic telescopic structure is described in detail in the following content.

[0051] In one embodiment, the elastic telescopic structure adopts an elastic reel device having two openings. The towing body 2 enters from one opening and is wound around the inner shaft of the reel, and passes through the opening at the other end. A torsion spring is provided on the inner shaft to provide elastic contraction force, so that in the absence of external force, the telescopic part of the towing body 2 is always in a curled state.

[0052] In one embodiment, based on the existing Japanese buckle structure, an elastic telescopic structure with simple structure and low cost is provided. Figure 4-Figure 6 A certain length portion is selected on the towing body 2, and then two clips 7 structures are set. The clips 7 are clamped and fixed on the towing body 2 by bolt tightening and clamping. The towing body 2 between the two clips 7 is the telescopic part.

[0053] An elastic member 8 is provided between the two clips 7. The elastic member 8 can be made of rubber material with good elastic expansion and contraction ability, or other structures that can provide a stable contraction effect, such as a linear spring, etc. The clips 7 are tightened by the elastic member 8, so that the towing body 2 between the clips 7 is gathered. The figure shows a special gathering method, that is, limiting its folding width, providing a gathering force through two outer elastic members 8, and providing an anti-slip rod 9 structure in the middle between the two elastic members 8, which can be similar to the existing Japanese buckle structure, and the towing body 2 can be folded in a W shape.

[0054] This method is different from the reel method. Its structure is relatively simple and the effect can be achieved through a low-cost iron clip 7. At the same time, it cooperates with the structure of the counterweight conductive block 3 set at the lower end to adjust the folding length of the telescopic part according to the different weights of the counterweight conductive block 3, so as to achieve the effect that the counterweight conductive block 3 is always in contact with the ground.

[0055] Furthermore, the static-conducting drag zone structure in this embodiment is also provided with a functional module for realizing real-time monitoring of the unobstructed state of the static-conducting line by connecting to the tanker truck.

[0056] In the existing old tank trucks, there is an explosion-proof box with power control, and a dedicated power supply circuit is set in the explosion-proof box to power various monitoring equipment on the old tank trucks. This explosion-proof box is equipped with an isolation fence to ensure that the connected electrical equipment can be used safely. However, the output power of this type is small and can only meet the needs of some detectors or sensors, but cannot meet the needs of high-power equipment, such as the motor of the electric lifting electrostatic towing existing in the prior art.

[0057] In this embodiment, a fixing portion is provided at the upper end of the towing body 2. Figure 4-Figure 6 It can be seen that the fixing part includes an external fixing cover 5 structure, which is a structure used to fix the end of the existing electrostatic towing belt to keep it fixed and conductively connected with the vehicle body. The fixing cover 5 has three holes, one of which is for the conductive fixing screw 6 to pass through. After passing through the fixing cover 5, the conductive fixing screw 6 passes through the middle of the towing belt body 2, that is, it contacts the conductive strip provided in the middle of the towing belt body 2, and finally inserts into the metal surface of the bumper 1 electrically connected to the corresponding vehicle body to achieve a conductive connection relationship.

[0058] In this embodiment, a detection box 4 is further provided between the fixed cover 5 and the towing body 2. The detection box 4 adopts an explosion-proof housing structure design and is provided with waterproof materials inside. A power module and a mutual inductor are provided inside the detection box 4. The power module in the detection box 4 has a line that passes through and connects to the conductive strip. The detection box 4 also connects the power module to the explosion-proof box of the tank truck through a cable.

[0059] At the same time, in order to achieve the fixing stability between the fixing cover 5 and the towing body 2, a fixing hole 501 is also provided on the fixing cover 5, and a fixing screw penetrating the detection box 4 is provided on the towing body 2. The fixing screw passes through the fixing hole 501 and is fixed by bolts.

[0060] The detection box 4 is connected to the power supply through the explosion-proof box, and then the detection box 4 has a line connected to the conductor in the towing body 2, and a micro-current is applied to the towing body 2 at intervals through the power module, and the current size is monitored in real time by the mutual inductor. If the line that outputs the micro-current can be turned on each time, and the mutual inductor detects that there is current, and the current value meets the set threshold range, it is determined that the towing body 2 is normally connected to the ground. If the mutual inductor detects a change in current or cannot detect it, it will immediately transmit information to the control PLC in the explosion-proof box through the line to alarm.

[0061] The present invention is not limited to the above optional implementations, and anyone can derive other various forms of products under the enlightenment of the present invention. The above specific implementations should not be understood as limiting the scope of protection of the present invention. The scope of protection of the present invention should be based on the definition in the claims, and the description can be used to interpret the claims.

Claims

1. A tanker truck static conductive drag zone, arranged at the rear of the tanker truck to achieve equal potential between the vehicle and the ground, characterized in that: The towing body (2) comprises a towing belt body (2) and a fixing cover (5), wherein the towing belt body (2) comprises an external rubber layer and a conductive strip arranged in the external rubber layer and extending along the length direction of the towing belt body (2); one end of the towing belt body (2) is fixed to the oil tank truck through the fixing cover (5), and the other end has a conductive strip passing through the external rubber layer and contacting the ground to conduct electricity; An elastic telescopic mechanism is provided on the towing belt body (2), the towing belt body (2) having a folded or curled portion which is accommodated in the elastic telescopic mechanism to form a telescopic portion, and the telescopic portion is elastically limited by the elastic telescopic mechanism; A counterweight is provided at the grounded end of the towing belt body (2), wherein the mass of the counterweight is greater than the minimum elastic limiting force of the elastic telescopic mechanism; The elastic telescopic mechanism comprises at least two clips (7) and an elastic member (8) connecting the two clips (7), and the clips (7) are clamped on the towing belt body (2) by deformation or bolts; The telescopic portion of the towing body (2) is folded and stored between the two clips (7), the elastic member (8) always provides an elastic force for tightening the two clips (7), and the length of the telescopic portion of the towing body (2) between the clips (7) is greater than the height difference between the empty and fully loaded tank truck; The towing body (2) is also provided with a detection box (4), wherein the detection box (4) has a power module and a mutual inductor, the power module in the detection box (4) has a line passing through and connected to the conductive strip, and the detection box (4) also connects the power module to the power distribution module of the tank truck via a cable; The detection box (4) is arranged between the fixing cover (5) and the towing body (2); the fixing cover (5) is provided with a conductive fixing screw (6) penetrating the detection box (4) and the towing body (2); the conductive fixing screw (6) penetrates the towing body (2) and is electrically connected to the conductive strip; the power module in the detection box (4) has a detection circuit connected to the conductive fixing screw (6); the mutual inductor is arranged on the detection circuit; The detection box (4) has a circuit connected to the conductor inside the towing body (2), and applies a micro-current to the towing body (2) at intervals through the power module, and uses a mutual inductor to monitor the current in real time; if the circuit outputting the micro-current can be connected each time, and the mutual inductor detects that there is current, and the current value meets the set threshold range, it is determined that the towing body (2) is normally connected to the ground; if the mutual inductor detects a change in current or fails to detect it, it will immediately transmit information to the control PLC in the explosion-proof box through the circuit to issue an alarm.

2. The static conductive towing belt for a tank truck according to claim 1, characterized in that: The counterweight is a counterweight conductive block (3) in conductive contact with the conductive strip, and the counterweight conductive block (3) wraps around the end of the towing belt body (2).

3. The static conductive towing belt for a tank truck according to claim 2, characterized in that: The counterweight conductive block (3) is a cylindrical structure, and a plurality of metal wires are covered on the curved surface of the counterweight conductive block (3).

4. The static conductive towing belt for a tank truck according to claim 1, characterized in that: The clip (7) is a sheet body that is clamped on both sides of the towing belt body (2) and interlocked with each other. Both ends of the clip (7) have ends that are tightened and fixed by bolts, and the end of the elastic member (8) is clamped and fixed between the ends of the clip (7).

5. The static conductive towing belt for a tank truck according to claim 1, characterized in that: The elastic member (8) is a spring.

6. The static conductive towing belt for a tank truck according to claim 1, characterized in that: The fixing cover (5) is also provided with a fixing hole (501), and the towing belt body (2) is provided with a fixing screw that passes through the detection box (4), and the fixing screw passes through the fixing hole (501) and is fixed by bolts.

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