Top refueling device for hazardous article tank truck

Abstract

The invention belongs to the technical field of tank truck refueling auxiliary equipment, and particularly relates to a dangerous goods tank truck top refueling device which comprises a tank truck. A manhole cover is mounted at the top of the tank car; the ventilation pipe is installed at the top of the manhole cover, a rotating piece is installed at the tail end of the ventilation pipe, and a gas conveying pipe is installed at the end, away from the ventilation pipe, of the rotating piece; the gas storage mechanism is arranged at the end, away from the manhole cover, of the gas conveying pipe, and the monitoring mechanism is installed on the side, away from the ventilation pipe, of the manhole cover. The liquidometer can be separated from crude oil when not used, meanwhile, residual crude oil is adsorbed through the cleaning assembly, the liquidometer can be conveniently cleaned before the liquidometer is used next time, the liquidometer is prevented from being soaked in the crude oil for a long time, the measurement accuracy of the liquidometer can be maintained, and the liquidometer is prevented from being corroded by the crude oil.

Description

Technical Field

[0001] The present invention belongs to the technical field of auxiliary equipment for refueling tank trucks, and specifically relates to a top refueling device for dangerous goods tank trucks. Background Art

[0002] A tank truck is a transport vehicle with a tank-shaped body, used to transport various liquids, liquefied gases, powdered goods, etc. These goods include gasoline, crude oil, various viscous oils, vegetable oils, liquid ammonia, alcohol, water, various acid and alkali liquids, cement, lead oxide powder, etc.

[0003] Currently, dangerous goods tank trucks mainly rely on operators to observe the oil level height in the tank at the top of the tank, and send signals to other personnel to stop loading when it is full. There are also other methods such as installing magnetic flap level gauges to detect the liquid level height in the tank. However, existing solutions all have certain risks. The solution relying on personnel observation is harmful to the human body due to the large amount of harmful gases contained in crude oil, and long-term observation can cause harm to the body. In severe cases, fainting may occur on the top of the tank, resulting in safety accidents. When installing a level gauge, due to the viscosity of crude oil, the level gauge is prone to failure after several uses, resulting in overfilling of the oil during loading. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the technical solution adopted by the present invention to solve its technical problems is: a top refueling device for dangerous goods tank trucks, including: a tank truck; a manhole cover is installed on the top of the tank truck;

[0005] It further includes: a ventilation pipe, the ventilation pipe is installed on the top of the manhole cover, a rotating member is installed at the end of the ventilation pipe, and an air delivery pipe is installed at the end of the rotating member away from the ventilation pipe;

[0006] A gas storage mechanism, the gas storage mechanism is arranged at the end of the air delivery pipe away from the manhole cover, and the gas storage mechanism is used to collect harmful gases overflowing during oil loading;

[0007] A monitoring mechanism, the monitoring mechanism is installed on one side of the manhole cover away from the ventilation pipe, and the bottom of the monitoring mechanism extends into the interior of the tank truck;

[0008] The monitoring mechanism includes:

[0009] A detection pipeline, the detection pipeline is installed on the top of the manhole cover, and an extension pipe is installed at the position of the bottom of the manhole cover opposite to the detection pipeline;

[0010] A cleaning component, the cleaning component is installed on the inner wall of the extension pipe, and the cleaning component is used to adsorb and clean the crude oil adhered to the bottom of the level gauge;

[0011] A storage component, the storage component is arranged on the inner wall of the detection pipeline, and the storage component is used to store the level gauge away from the crude oil when not in use.

[0012] Furthermore, the top refueling device of the dangerous goods tanker further includes: a filling oil pipe, which is installed at the middle position between the ventilation pipe and the monitoring mechanism. The gas storage mechanism is threadedly connected to the gas transmission pipe and is detachable. A threaded groove is provided at one end of the gas transmission pipe away from the weather pipe.

[0013] Furthermore, the monitoring mechanism further includes: a viewing window, which is opened on the outer side of the detection pipeline; a telescopic rod, which is installed on the inner wall of the detection pipeline. A cover is provided at the top of the telescopic rod. After the crude oil at the bottom is cleaned by the cleaning component and then enters the storage component for storage, the liquid level gauge can be separated from the crude oil when not in use. At the same time, the cleaning component adsorbs the residual crude oil, which not only facilitates the cleaning of the liquid level gauge before the next use, avoids the liquid level gauge being soaked in the crude oil for a long time, but also maintains the measurement accuracy of the liquid level gauge and avoids the corrosion of the liquid level gauge by the crude oil, resulting in the shortening of the service life of the liquid level gauge.

[0014] Furthermore, the gas storage mechanism includes: a threaded ring, which is threadedly connected to the threaded groove of the gas transmission pipe. A connecting block is rotatably connected to the inner wall of the threaded ring. A plug is rotatably connected to one end of the connecting block away from the threaded ring; an upper barrel ring, on the outer wall of the opening at one end close to the gas transmission pipe of the upper barrel ring, threads are provided. The threaded ring is threadedly connected to the upper barrel ring. A folding piece is provided on the outer wall of the upper barrel ring. A lower barrel ring is installed at one end of the folding piece away from the upper barrel ring; the gas storage mechanism further includes: an opening and closing component, the outer wall of which is sleeved with the inner wall of the lower barrel ring, and the lower barrel ring can slide on the outer wall of the opening and closing component; a fixing ring, which is installed on the outer wall of the opening and closing component away from the gas transmission pipe. Support connecting rods are evenly provided on the outer wall of the fixing ring. One end of the support connecting rod away from the fixing ring is rotatably connected to the outer wall of the lower barrel ring, so that the opening and closing component is closed, isolating the gas transmission pipe from the upper barrel ring. Then, the threaded ring is rotated to separate the upper barrel ring from the gas transmission pipe. Subsequently, the plug is quickly blocked at the end of the gas transmission pipe, and the harmful gas in the upper barrel ring is stored separately and recycled, avoiding the leakage of the gas in the gas transmission pipe and reducing the content of harmful gas in the air, improving the safety of the working environment of workers.

[0015] Furthermore, the opening and closing assembly includes: a rotating rod, the outer wall of the rotating rod is sleeved with the inner wall of the lower barrel ring, and a special-shaped hole is formed in the inner wall of the rotating rod; a special-shaped block, the outer wall of the special-shaped block is slidably connected with the inner wall of the special-shaped hole, and a round rod is installed at one end of the special-shaped block away from the rotating rod; a semi-lunar plate, the semi-lunar plate is installed on the inner wall of the upper barrel ring, and the outer wall of the semi-lunar plate is rotatably connected with one end of the round rod; a baffle plate, the inner wall of the baffle plate is connected with the outer wall of the round rod, and the inner wall of the baffle plate is clamped with the outer wall of the semi-lunar plate. After the baffle plate and the semi-lunar plate are unfolded to block the gas transmission pipe, the gap generated by the semi-lunar plate between the baffle plate and the upper barrel ring is blocked, thereby avoiding the leakage of harmful gases, separating the harmful gases in the upper barrel ring from the gases in the gas transmission pipe for separate storage and treatment. The operation is simple, which helps workers to use, protects the safety of the workers' working environment, strengthens the management of harmful gases, and avoids the increase of harmful gas content in the air caused by oil and gas volatilization, which is prone to dangerous accidents.

[0016] Furthermore, the cleaning assembly includes: a driving block, the driving block is installed on the inner wall of the extension pipe, and electric push rods are uniformly arranged at the bottom of the driving block. An anti-static oil-absorbing cotton is sleeved on the outer wall of the electric push rod, and there are two anti-static oil-absorbing cottons; an orifice plate, the orifice plate is installed at the bottom of the electric push rod and in the middle position between the two anti-static oil-absorbing cottons, and there are three orifice plates; a spring, the spring is arranged in the middle position between the upper two orifice plates, and both ends of the spring are connected with the outer wall of the orifice plate. The spring is sleeved on the outside of the electric push rod, driving the anti-static oil-absorbing cottons to approach each other and being squeezed by the orifice plate to squeeze out the adsorbed crude oil. After the electric push rod is stretched, under the action of the spring, the two anti-static oil-absorbing cottons return to the initial position, and then adsorption is carried out again. After several repetitions, the liquid level gauge is lifted upward until it is separated from the driving block. After the liquid level gauge is separated from the crude oil, the bottom of the liquid level gauge is initially adsorbed to reduce the adhesion of the crude oil, avoiding the influence of the crude oil corrosion and adhesion on the liquid level gauge, resulting in a decrease in accuracy, squeezing the adsorbed crude oil, enabling the anti-static oil-absorbing cotton to be reused repeatedly, and prolonging the service life of the liquid level gauge.

[0017] Further, the storage component includes: a fixed pipe installed on the inner wall of the detection pipeline. A counterweight block is slidably connected to the inner wall of the fixed pipe, and a cover body is sleeved on the top of the fixed pipe; a connecting rope, one end of the connecting rope is connected to the top of the counterweight block, and an anti - detachment rod is provided at the end of the connecting rope away from the counterweight block. The cover body clamps the connecting rope at the top end of the fixed pipe; the storage component further includes: a liquid level gauge installed at the bottom of the counterweight block, and the bottom of the liquid level gauge is in contact with the inner wall of the cleaning component; a rotating rod evenly arranged below the inner wall of the fixed pipe, an elastic ring is installed at the bottom of the rotating rod, and the inner wall of the elastic ring is sleeved on the outer wall of the liquid level gauge, storing the liquid level gauge as a whole in the fixed pipe, clamping the connecting rope at the top end of the fixed pipe through the cover body to keep the liquid level gauge fixed. At the same time, the rotating rod drives the elastic ring to wrap the bottom of the liquid level gauge, so that the liquid level gauge remains stable during the movement of the tanker and does not collide, and the liquid level gauge is stored in a cool place away from the crude oil, which helps to isolate the liquid level gauge from the external environment, maintain the accuracy of the liquid level gauge, and facilitate the workers to quickly take out and clean the liquid level gauge before the next use.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. By setting up the monitoring mechanism, after the crude oil at the bottom is cleaned by the cleaning component and then enters the storage component for storage, the liquid level gauge can be separated from the crude oil when not in use. At the same time, the cleaning component adsorbs the residual crude oil, which not only facilitates the cleaning of the liquid level gauge before the next use, avoids the liquid level gauge being soaked in the crude oil for a long time, but also maintains the measurement accuracy of the liquid level gauge, and prevents the crude oil from corroding the liquid level gauge and shortening the service life of the liquid level gauge.

[0020] 2. By setting up the gas storage mechanism, the opening - closing component is closed to isolate the gas transmission pipe from the upper barrel ring. Then, the threaded ring is rotated to separate the upper barrel ring from the gas transmission pipe. Subsequently, the plug is quickly blocked at the end of the gas transmission pipe to store and recycle the harmful gas in the upper barrel ring separately, avoiding the leakage of the gas in the gas transmission pipe and reducing the content of harmful gas in the air, thereby improving the safety of the working environment for workers.

[0021] 3. By setting up the opening - closing component, after the baffle and the semi - lunar plate unfold to block the gas transmission pipe, the gap generated between the baffle and the upper barrel ring due to the semi - lunar plate is blocked, thus avoiding the leakage of harmful gas, separating the harmful gas in the upper barrel ring from the gas in the gas transmission pipe for separate storage and treatment. The operation is simple, which is helpful for workers to use, protects the safety of the working environment for workers, strengthens the management of harmful gas, and avoids the increase of harmful gas content in the air caused by oil and gas volatilization, which is likely to cause dangerous accidents.

[0022] 4. By providing a storage component, the liquid level gauge is stored entirely within the fixed pipe. The connecting rope is clamped to the top of the fixed pipe through the cover, keeping the liquid level gauge fixed. Meanwhile, the rotating rod drives the elastic ring to wrap around the bottom of the liquid level gauge, ensuring the stability of the liquid level gauge during the movement of the tanker and preventing collisions. Storing the liquid level gauge in a cool place away from the crude oil helps isolate the liquid level gauge from the external environment, maintaining its accuracy and facilitating the quick removal and cleaning of the liquid level gauge by workers before the next use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural view of the present invention;

[0024] Figure 2 is a schematic view of a partial structure of the present invention;

[0025] Figure 3 is a schematic structural view of the gas storage mechanism of the present invention;

[0026] Figure 4 is a schematic structural view of the monitoring mechanism of the present invention;

[0027] Figure 5 is a bottom view of the monitoring mechanism of the present invention;

[0028] Figure 6 is a schematic view of a partial structure of the monitoring mechanism of the present invention;

[0029] Figure 7 is a schematic structural view of the opening and closing component of the present invention;

[0030] Figure 8 is a schematic view of a partial structure of the opening and closing component of the present invention;

[0031] Figure 9 is a schematic structural view of the cleaning component of the present invention;

[0032] Figure 10 is a schematic structural view of the storage component of the present invention.

[0033] In the figure: 1, tanker; 2, manhole cover; 3, vent pipe; 4, rotating part; 5, gas transmission pipe; 6, gas storage mechanism; 601, threaded ring; 602, connecting block; 603, plug; 604, upper barrel ring; 605, folding piece; 606, lower barrel ring; 607, opening and closing assembly; 6071, rotating rod; 6072, special-shaped hole; 6073, special-shaped block; 6074, round rod; 6075, baffle; 6076, semi-lunar plate; 608, fixing ring; 609, support connecting rod; 7, monitoring mechanism; 701, detection pipeline; 702, viewing window; 703, telescopic rod; 704, housing; 705, extension pipe; 706, cleaning assembly; 7061, driving block; 7062, electric push rod; 7063, anti-static oil-absorbing cotton; 7064, orifice plate; 7065, spring; 707, storage assembly; 7071, fixing pipe; 7072, counterweight; 7073, connecting rope; 7074, anti-disengagement rod; 7075, cover body; 7076, liquid level gauge; 7077, rotating rod; 7078, elastic ring; 8, oil filling pipe. Detailed implementation mode

[0034] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation modes. The embodiments of the present invention are given for the purpose of illustration and description, and are not exhaustive or limited to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and enable those of ordinary skill in the art to understand the present invention and thus design various embodiments with various modifications suitable for specific purposes.

[0035] Example 1, please refer to Figures 1 - 5 A technical solution is provided by the present invention: a top refueling device for a dangerous goods tanker is described as follows.

[0036] Including: tanker 1; a manhole cover 2 is installed on the top of the tanker 1;

[0037] It also includes: a vent pipe 3, the vent pipe 3 is installed on the top of the manhole cover 2, a rotating part 4 is installed at the end of the vent pipe 3, and a gas transmission pipe 5 is installed at the end of the rotating part 4 away from the vent pipe 3; a gas storage mechanism 6, the gas storage mechanism 6 is arranged at the end of the gas transmission pipe 5 away from the manhole cover 2, and the gas storage mechanism 6 is used to collect harmful gases overflowing during oil loading; a monitoring mechanism 7, the monitoring mechanism 7 is installed on the side of the manhole cover 2 away from the vent pipe 3, and the bottom of the monitoring mechanism 7 extends into the interior of the tanker 1; the top refueling device for the dangerous goods tanker also includes: an oil filling pipe 8, the oil filling pipe 8 is installed at the middle position between the vent pipe 3 and the monitoring mechanism 7, the gas storage mechanism 6 is threadedly connected to the gas transmission pipe 5, detachable, and a threaded groove is opened at the end of the gas transmission pipe 5 away from the weather pipe.

[0038] During operation, the worker climbs to the top of the tanker 1, connects the oil pipeline to the oil filling pipe 8, manually lifts the gas pipeline 5, so that the gas pipeline 5 rotates to the vertical driven by the rotating part 4, rotates the gas storage mechanism 6 to the vertical, places the liquid level gauge 7076 of the monitoring mechanism 7 downward, and then starts filling the inside of the tanker 1 with oil. The worker observes the value of the monitoring mechanism 7 to judge the liquid level height of the crude oil in the tanker 1. After the oil level reaches the specified position, the filling is stopped. Then, the liquid level gauge 7076 is lifted upward to separate from the crude oil. After cleaning, it is kept placed inside the monitoring mechanism 7. The oil pipeline is disconnected. The present invention uses a material that is not prone to static electricity.

[0039] The monitoring mechanism 7 includes: a detection pipeline 701, the detection pipeline 701 is installed on the top of the manhole cover 2, and an extension pipe 705 is installed at the position of the bottom of the manhole cover 2 opposite to the detection pipeline 701; a cleaning assembly 706, the cleaning assembly 706 is installed on the inner wall of the extension pipe 705, and the cleaning assembly 706 is used to adsorb and clean the crude oil adhered to the bottom of the liquid level gauge 7076; a storage assembly 707, the storage assembly 707 is arranged on the inner wall of the detection pipeline 701, and the storage assembly 707 is used to store the liquid level gauge 7076 away from the crude oil when not in use; the monitoring mechanism 7 further includes: a window 702, the window 702 is opened on the outside of the detection pipeline 701, and the window 702 is made of a transparent material, so that the staff can observe the value of the liquid level gauge 7076; a telescopic rod 703, the telescopic rod 703 is installed on the inner wall of the detection pipeline 701, and the top of the telescopic rod 703 is provided with a cover 704. When not in use, the telescopic rod 703 drives the cover 704 to cover the detection pipeline 701, so that a relatively closed space is formed in the detection pipeline 701, so that the liquid level gauge 7076 is in a suitable storage environment, reduces contact with the external environment, and maintains sensitivity.

[0040] During the oil transportation process, the worker first lowers the liquid level gauge 7076 from the storage assembly 707 into the extension pipe 705 to make the liquid level gauge 7076 reach the required height of the liquid level, and then fills the crude oil. After observing that the liquid level gauge 7076 shows that the crude oil liquid level reaches the specified position, the filling is stopped. Then, the worker manually operates to lift the liquid level gauge 7076 upward. Finally, after the bottom crude oil is cleaned by the cleaning assembly 706, it enters the storage assembly 707 for storage, so that the liquid level gauge 7076 can be separated from the crude oil when not in use. At the same time, the residual crude oil is adsorbed by the cleaning assembly 706, which not only facilitates the cleaning of the liquid level gauge 7076 before the next use, avoids the liquid level gauge 7076 being soaked in the crude oil for a long time, but also maintains the measurement accuracy of the liquid level gauge 7076 and avoids the crude oil corroding the liquid level gauge 7076, resulting in shortening the service life of the liquid level gauge 7076.

[0041] The gas storage mechanism 6 includes: a threaded ring 601, which is threadedly connected to the threaded groove of the gas pipeline 5. A connecting block 602 is rotatably connected to the inner wall of the threaded ring 601. One end of the connecting block 602 away from the threaded ring 601 is rotatably connected to a plug 603, and the plug 603 is used to block the end of the gas pipeline 5 after removing the upper barrel ring 604 to prevent harmful gas from leaking; an upper barrel ring 604, on the outer wall of the opening at one end of the upper barrel ring 604 close to the gas pipeline 5, threads are provided, and the threaded ring 601 is threadedly connected to the upper barrel ring 604. A folding piece 605 is arranged on the outer wall of the upper barrel ring 604. The folding piece 605 is made of a soft and foldable material. One end of the folding piece 605 away from the upper barrel ring 604 is provided with a lower barrel ring 606; the upper barrel ring 604 and the lower barrel ring 606 are made of a hard but lightweight material. The gas storage mechanism 6 further includes: an opening and closing assembly 607, the outer wall of the opening and closing assembly 607 is sleeved with the inner wall of the lower barrel ring 606, and the lower barrel ring 606 can slide on the outer wall of the opening and closing assembly 607; a fixing ring 608, the fixing ring 608 is installed on the outer wall of the end of the opening and closing assembly 607 away from the gas pipeline 5. Support connecting rods 609 are uniformly arranged on the outer wall of the fixing ring 608, and one end of the support connecting rod 609 away from the fixing ring 608 is rotatably connected to the outer wall of the lower barrel ring 606.

[0042] Before filling the crude oil, the worker connects the upper barrel ring 604 and the lower barrel ring 606 through the folding piece 605, aligns the inlet of the upper barrel ring 604 with the outlet of the gas pipeline 5, and connects them through the threaded ring 601. Then, the gas pipeline 5 is rotated around the rotating part 4 to be vertical, making the upper barrel ring 604 vertical. During the oil transportation process, the overflowing harmful gas enters the space enclosed by the upper barrel ring 604, the lower barrel ring 606 and the folding piece 605 through the ventilation pipe 3 and the gas pipeline 5. After the harmful gas enters the upper barrel ring 604 due to the change in air pressure, the lower barrel ring 606 is gradually inflated upward by the change in air pressure. During the upward movement of the lower barrel ring 606, the support connecting rod 609 is squeezed and bent. When the content of harmful gas is small or the air pressure is insufficient, the worker can manually squeeze the lower barrel ring 606 to suck out the harmful gas through the gas pipeline 5. After the oil transportation is completed, the worker rotates the gas pipeline 5 to place the upper barrel ring 604 on the top of the tanker 1. Then, the opening and closing assembly 607 is rotated to close the opening and closing assembly 607, isolating the gas pipeline 5 from the upper barrel ring 604. Then, the threaded ring 601 is rotated to separate the upper barrel ring 604 from the gas pipeline 5. Then, the plug 603 is quickly blocked at the end of the gas pipeline 5 to store the harmful gas in the upper barrel ring 604 separately and recycle it, preventing the gas in the gas pipeline 5 from leaking, reducing the content of harmful gas in the air, and improving the safety of the worker's working environment.

[0043] Example 2, please refer to Figures 1 - 9, the present invention provides a technical solution: on the basis of Embodiment 1, the opening and closing assembly 607 includes: a rotating rod 6071, the outer wall of the rotating rod 6071 is sleeved with the inner wall of the lower barrel ring 606, and a special-shaped hole 6072 is provided in the inner wall of the rotating rod 6071; a special-shaped block 6073, the outer wall of the special-shaped block 6073 is slidably connected to the inner wall of the special-shaped hole 6072, the shape of the special-shaped hole 6072 conforms to that of the special-shaped block 6073, and a round rod 6074 is installed at one end of the special-shaped block 6073 away from the rotating rod 6071; a semi-lunar plate 6076, the semi-lunar plate 6076 is installed on the inner wall of the upper barrel ring 604, and the outer wall of the semi-lunar plate 6076 is rotatably connected to one end of the round rod 6074; a baffle 6075, the inner wall of the baffle 6075 is connected to the outer wall of the round rod 6074, the inner wall of the baffle 6075 is clamped with the outer wall of the semi-lunar plate 6076, and the shape of the baffle 6075 is the same as that of the semi-lunar plate 6076.

[0044] During oil transportation, the worker manually rotates the rotating rod 6071 to drive the special-shaped block 6073 and the round rod 6074 to rotate, so that the semi-lunar plate 6076 and the baffle 6075 are rotated to overlap, connecting the oil delivery pipe 5 with the upper barrel ring 604, and conveying the harmful gas into the upper barrel ring 604. After the oil transportation is completed, the worker rotates the rotating rod 6071. After the rotating rod 6071 rotates 180 degrees, the baffle 6075 and the semi-lunar plate 6076 are unfolded. Since there is a narrow protrusion on the inner side of the baffle 6075, after the baffle 6075 and the semi-lunar plate 6076 are unfolded and block the oil delivery pipe 5, the gap generated between the baffle 6075 and the upper barrel ring 604 separated by the semi-lunar plate 6076 is blocked, thus avoiding the leakage of harmful gas, separating the harmful gas in the upper barrel ring 604 from the gas in the oil delivery pipe 5 for separate storage and treatment. The operation is simple, which is helpful for the worker to use, protects the safety of the worker's working environment, strengthens the management of harmful gas, and avoids the increase of harmful gas content in the air caused by oil and gas volatilization, which is prone to dangerous accidents.

[0045] The cleaning assembly 706 includes: a driving block 7061, the driving block 7061 is installed on the inner wall of the extension pipe 705, electric push rods 7062 are uniformly arranged at the bottom of the driving block 7061, an anti-static oil-absorbing cotton 7063 is sleeved on the outer wall of the electric push rod 7062, and there are two anti-static oil-absorbing cottons 7063; an orifice plate 7064, the orifice plate 7064 is installed at the bottom of the electric push rod 7062 and in the middle position between the two anti-static oil-absorbing cottons 7063. The anti-static oil-absorbing cotton 7063 is circular in shape and has a hole in the middle to enable the liquid level gauge 7076 to pass through. There are three orifice plates 7064; a spring 7065, the spring 7065 is arranged in the middle position between the upper two orifice plates 7064, the two ends of the spring 7065 are connected to the outer wall of the orifice plate 7064, and the spring 7065 is sleeved on the outside of the electric push rod 7062.

[0046] After the oil level reaches the specified position of the liquid level gauge 7076, the worker lifts the liquid level gauge 7076 upward so that the bottom of the liquid level gauge 7076 is separated from the crude oil. As the liquid level gauge 7076 rises, the inner wall of the anti-static oil-absorbing cotton 7063 contacts the bottom of the liquid level gauge 7076, and adsorbs the crude oil at its bottom. Subsequently, the driving block 7061 drives the electric push rod 7062 to contract, causing the orifice plates 7064 to approach each other, and driving the anti-static oil-absorbing cotton 7063 to approach each other and be squeezed by the orifice plates 7064, squeezing out the adsorbed crude oil. After the electric push rod 7062 is stretched, under the action of the spring 7065, the two anti-static oil-absorbing cotton 7063 return to their initial positions, and then adsorption is carried out again. After several repetitions, the liquid level gauge 7076 is lifted upward until it is separated from the driving block 7061. After the liquid level gauge 7076 is separated from the crude oil, its bottom is initially adsorbed to reduce the adhesion of the crude oil and avoid the influence of corrosion and adhesion of the crude oil on the liquid level gauge 7076, resulting in a decrease in accuracy. The adsorbed crude oil is squeezed, enabling the anti-static oil-absorbing cotton 7063 to be reused repeatedly and extending the service life of the liquid level gauge 7076.

[0047] The storage component 707 includes: a fixed pipe 7071, which is installed on the inner wall of the detection pipeline 701. A counterweight 7072 is slidably connected to the inner wall of the fixed pipe 7071. A cover body 7075 is sleeved on the top of the fixed pipe 7071; a connecting rope 7073, which is made of anti-static elastic material, can be bent and can exert a certain thrust on the counterweight 7072. One end of the connecting rope 7073 is connected to the top of the counterweight 7072, and an anti-detachment rod 7074 is provided at the end of the connecting rope 7073 away from the counterweight 7072. The length of the anti-detachment rod 7074 is greater than the diameter of the fixed pipe 7071 to prevent the liquid level gauge 7076 from slipping off and falling. The cover body 7075 clamps the connecting rope 7073 at the top of the fixed pipe 7071; the storage component 707 further includes: a liquid level gauge 7076, which is installed at the bottom of the counterweight 7072, and the bottom of the liquid level gauge 7076 contacts the inner wall of the cleaning component 706; a rotating rod 7077, which is uniformly arranged below the inner wall of the fixed pipe 7071. An elastic ring 7078 is installed at the bottom of the rotating rod 7077, and the inner wall of the elastic ring 7078 is sleeved on the outer wall of the liquid level gauge 7076. The elastic ring 7078 is made of elastic material with a relatively large friction force on the liquid level gauge 7076.

[0048] Initially, the worker opens the cover 7075 and lowers the liquid level gauge 7076 downward through the connecting rope 7073. During the movement of the liquid level gauge 7076, the rotating rod 7077 drives the elastic ring 7078 to contact the surface of the liquid level gauge 7076, keeping the liquid level gauge 7076 vertically lowered. After use, the worker pulls up the connecting rope 7073, causing the connecting rope 7073 to drive the liquid level gauge 7076 to move upward. After the crude oil at the bottom of the liquid level gauge 7076 is cleaned by the cleaning component 706, the liquid level gauge 7076 is stored as a whole in the fixed pipe 7071. The connecting rope 7073 is clamped at the top of the fixed pipe 7071 through the cover 7075 to keep the liquid level gauge 7076 fixed. At the same time, the rotating rod 7077 drives the elastic ring 7078 to wrap the bottom of the liquid level gauge 7076, keeping the liquid level gauge 7076 stable during the movement of the tanker 1 without collision. Storing the liquid level gauge 7076 in a cool place away from the crude oil helps isolate the liquid level gauge 7076 from the external environment, maintaining the accuracy of the liquid level gauge 7076 and facilitating the worker to quickly remove and clean the liquid level gauge 7076 before the next use.

[0049] The specific working process is as follows:

[0050] During work, the worker climbs to the top of the tanker 1, connects the oil pipeline to the oil filling pipe 8, and manually lifts the gas pipeline 5, causing the gas pipeline 5 to rotate to the vertical under the drive of the rotating part 4. Before filling the crude oil, the worker connects the upper barrel ring 604 and the lower barrel ring 606 through the folding piece 605, aligns the inlet of the upper barrel ring 604 with the outlet of the gas pipeline 5, and connects them through the threaded ring 601. Subsequently, the gas pipeline 5 is rotated 90 degrees around the rotating part 4 to make the upper barrel ring 604 vertical. During the oil transportation process, the overflowing harmful gas enters the space surrounded by the upper barrel ring 604, the lower barrel ring 606, and the folding piece 605 through the ventilation pipe 3 and the gas pipeline 5. Due to the change in air pressure, after the harmful gas enters the upper barrel ring 604, the lower barrel ring 606 is gradually inflated upward by the air pressure change. During the upward movement of the lower barrel ring 606, the support connecting rod 609 is squeezed and bent. When the content of harmful gas is small or the air pressure is insufficient, the worker can manually squeeze the lower barrel ring 606 to suck out the harmful gas through the gas pipeline 5. After the oil transportation is completed, the worker rotates the gas pipeline 5 to place the upper barrel ring 604 on the top of the tanker 1. Subsequently, the opening and closing component 607 is rotated to close the opening and closing component 607, isolating the gas pipeline 5 from the upper barrel ring 604. Then, the threaded ring 601 is rotated to separate the upper barrel ring 604 from the gas pipeline 5. Subsequently, the plug 603 is quickly blocked at the end of the gas pipeline 5 to store and recycle the harmful gas in the upper barrel ring 604 separately.

[0051] During the oil transportation process, the worker first lowers the liquid level gauge 7076 from the storage component 707 into the extension pipe 705 to make the liquid level gauge 7076 at the required height of the liquid surface. Subsequently, crude oil is filled. After observing that the liquid level gauge 7076 shows that the crude oil liquid surface reaches the designated position, the filling is stopped. Then, the worker manually operates to lift the liquid level gauge 7076 upward. Finally, after cleaning the crude oil at the bottom through the cleaning component 706, it enters the storage component 707 for storage, enabling the liquid level gauge 7076 to be separated from the crude oil when not in use. At the same time, the cleaning component 706 adsorbs the residual crude oil. After cleaning, the liquid level gauge 7076 is placed inside the monitoring mechanism 7, and the oil pipeline is disconnected. The present invention uses a material that is not prone to generating static electricity.

[0052] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art and related fields without creative efforts shall fall within the protection scope of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention, unless otherwise specified and limited, are implemented according to the conventional means in the art.

Claims

1. A top refueling device for a dangerous goods tank truck, comprising: A tank truck (1); characterized in that a manhole cover (2) is installed on the top of the tank truck (1); Also includes: A vent pipe (3), the vent pipe (3) being installed on the top of the manhole cover (2), a rotating member (4) being installed at the end of the vent pipe (3), and a gas delivery pipe (5) being installed at one end of the vent pipe (4) away from the vent pipe (3); An air storage mechanism (6), the air storage mechanism (6) being arranged at one end of the air delivery pipe (5) away from the manhole cover (2), the air storage mechanism (6) being used to collect harmful gases overflowing when filling oil; A monitoring mechanism (7), wherein the monitoring mechanism (7) is mounted on a side of the manhole cover (2) away from the vent pipe (3), and the bottom of the monitoring mechanism (7) extends into the interior of the tank truck (1); The monitoring mechanism (7) comprises: A detection pipe (701), wherein the detection pipe (701) is installed on the top of the manhole cover (2), and an extension pipe (705) is installed at the bottom of the manhole cover (2) directly facing the detection pipe (701); A cleaning component (706), the cleaning component (706) is installed on the inner wall of the extension tube (705), and the cleaning component (706) is used to absorb and clean the crude oil adhered to the bottom of the liquid level meter (7076); A storage component (707) is arranged on the inner wall of the detection pipeline (701), and the storage component (707) is used to separate the liquid level meter (7076) from the crude oil for storage when not in use.

2. The top refueling device for dangerous goods tank truck according to claim 1 is characterized in that: The top refueling device of the hazardous goods tank truck also includes: an oil filling pipe (8), the oil filling pipe (8) is installed in the middle position between the ventilation pipe (3) and the monitoring mechanism (7), the gas storage mechanism (6) is threadedly connected to the gas delivery pipe (5) and is detachable, and a thread groove is provided at one end of the gas delivery pipe (5) away from the weather pipe.

3. The top refueling device for dangerous goods tank truck according to claim 2 is characterized in that: The monitoring mechanism (7) further comprises: A viewing window (702), wherein the viewing window (702) is opened on the outer side of the detection pipe (701); A telescopic rod (703) is installed on the inner wall of the detection pipe (701), and a cover shell (704) is arranged on the top of the telescopic rod (703).

4. The top refueling device for dangerous goods tank truck according to claim 1 is characterized in that: The gas storage mechanism (6) comprises: A threaded ring (601), the threaded ring (601) being threadedly connected to the thread groove of the gas transmission pipe (5), the inner wall of the threaded ring (601) being rotatably connected to a connecting block (602), and one end of the connecting block (602) away from the threaded ring (601) being rotatably connected to a buckle plug (603); An upper barrel ring (604), wherein the outer wall of the opening of the upper barrel ring (604) at one end close to the gas pipe (5) is provided with a thread, the threaded ring (601) is threadedly connected to the upper barrel ring (604), and the outer wall of the upper barrel ring (604) is provided with a folding sheet (605), and the lower barrel ring (606) is installed at the end of the folding sheet (605) away from the upper barrel ring (604).

5. The top refueling device for dangerous goods tank truck according to claim 1 is characterized by: The gas storage mechanism (6) further comprises: An opening and closing component (607), the outer wall of the opening and closing component (607) is sleeved with the inner wall of the lower barrel ring (606), and the lower barrel ring (606) can slide on the outer wall of the opening and closing component (607); A fixing ring (608) is installed on the outer wall of the opening and closing component (607) away from the gas pipe (5). The outer wall of the fixing ring (608) is evenly provided with supporting connecting rods (609). The end of the supporting connecting rod (609) away from the fixing ring (608) is rotatably connected to the outer wall of the lower barrel ring (606).

6. The top refueling device for dangerous goods tank truck according to claim 5 is characterized in that: The opening and closing assembly (607) comprises: A rotating rod (6071), the outer wall of the rotating rod (6071) is sleeved with the inner wall of the lower barrel ring (606), and the inner wall of the rotating rod (6071) is provided with a special-shaped hole (6072); A special-shaped block (6073), the outer wall of which is slidably connected to the inner wall of the special-shaped hole (6072), and a round rod (6074) is installed at one end of the special-shaped block (6073) away from the rotating rod (6071); A meniscus (6076), wherein the meniscus (6076) is mounted on the inner wall of the upper barrel ring (604), and the outer wall of the meniscus (6076) is rotatably connected to one end of the round rod (6074); The baffle (6075) has an inner wall connected to the outer wall of the round rod (6074), and the inner wall of the baffle (6075) is clamped to the outer wall of the meniscus (6076).

7. The top refueling device for dangerous goods tank truck according to claim 1 is characterized by: The cleaning component (706) includes: A driving block (7061), wherein the driving block (7061) is mounted on the inner wall of the extension tube (705), electric push rods (7062) are evenly arranged at the bottom of the driving block (7061), and the outer wall of the electric push rod (7062) is sleeved with anti-static oil-absorbing cotton (7063), and two anti-static oil-absorbing cottons (7063) are provided; An orifice plate (7064), the orifice plate (7064) is installed at the bottom of the electric push rod (7062) and in the middle of the two anti-static oil-absorbing cottons (7063), and three orifice plates (7064) are provided; A spring (7065) is arranged in the middle of the two orifice plates (7064) above, and both ends of the spring (7065) are connected to the outer wall of the orifice plate (7064). The spring (7065) is sleeved on the outer side of the electric push rod (7062).

8. The top refueling device for dangerous goods tank truck according to claim 1 is characterized by: The storage assembly (707) comprises: A fixed tube (7071), the fixed tube (7071) is installed on the inner wall of the detection pipe (701), a counterweight (7072) is slidably connected to the inner wall of the fixed tube (7071), and a cover (7075) is sleeved on the top of the fixed tube (7071); A connecting rope (7073), one end of which is connected to the top of the counterweight (7072), an anti-drop rod (7074) is provided at one end of the connecting rope (7073) away from the counterweight (7072), and the cover (7075) clamps the connecting rope (7073) at the top of the fixed tube (7071).

9. The top refueling device for dangerous goods tank truck according to claim 8, characterized in that: The storage assembly (707) further comprises: A liquid level meter (7076), the liquid level meter (7076) being installed at the bottom of the counterweight (7072), the bottom of the liquid level meter (7076) being in contact with the inner wall of the cleaning assembly (706); The rotating rod (7077) is evenly arranged below the inner wall of the fixed tube (7071), and an elastic ring (7078) is installed at the bottom of the rotating rod (7077), and the inner wall of the elastic ring (7078) is sleeved with the outer wall of the liquid level meter (7076).

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