A steel-plastic composite IBC ton barrel

Abstract

The present invention belongs to the technical field of storage containers, and in particular, relates to a steel-plastic composite IBC ton barrel, comprising a pallet and an outer metal frame arranged on the upper end surface of the pallet, and further comprising: an inner liner, the inner liner is mounted on the upper end surface of the pallet and arranged on the inner side of the outer metal frame, and a barrel opening is opened on the top of the inner liner; a sealing cover is threadedly connected to the barrel opening; a floating plate is arranged below the sealing cover, and the outer diameter of the floating plate is smaller than the diameter of the barrel opening; a pressing and fixing unit is mounted on the side wall of the floating plate; an air extraction unit is mounted on the bottom of the sealing cover, and the air inlet of the air extraction unit is connected to the interior of the inner liner. The present invention can not only reduce the contact between the stored liquid and the air, but also improve the stability of the ton barrel when transporting liquid, and can detect the sealing performance at the barrel opening of the inner liner. At the same time, it can help personnel to judge whether the ton barrel liner is excessively corroded to a certain extent.

Description

Technical Field

[0001] The invention belongs to the technical field of storage containers, and in particular relates to a steel-plastic composite IBC ton barrel. Background Art

[0002] IBC barrels play a key role in modern logistics and warehousing. They are made of high-strength materials and have a metal frame on the outside. They are sturdy and durable and can withstand greater pressure and impact. The liner is made of high-quality plastic with good corrosion resistance. They are suitable for the storage and transportation of various chemical raw materials, liquid foods, etc.

[0003] At present, IBC ton barrels generally include an outer metal frame structure, an inner anti-corrosion liner, a bottom tray, a drainage pipe, a sealing cover, a sealing strip and other components. They can store more raw materials, are easy to move and stack, and are convenient for transportation. For example, a pressure-resistant high-strength ton barrel disclosed in patent publication number CN117585324B;

[0004] When transporting liquids via IBC barrels, in order to prevent the liquid from causing excessive impact on the sealing cover due to shaking during transportation, a certain safety distance is generally required between the liquid and the barrel mouth of the IBC barrel (the reserved distance is generally kept above 30 cm). However, during transportation, the liquid surface will still shake. Although it will not cause impact on the sealing cover, the strong inertia may cause the IBC barrel to move, affecting the safety of transportation. Summary of the invention

[0005] The purpose of the present invention is to provide a steel-plastic composite IBC tote in view of the above problems.

[0006] To achieve the above object, the present invention adopts the following technical scheme: a steel-plastic composite IBC ton barrel, comprising a pallet and an outer metal frame arranged on the upper end surface of the pallet, and also comprising:

[0007] An inner container is installed on the upper end surface of the tray and is arranged on the inner side of the outer metal frame, and a barrel opening is opened on the top of the inner container;

[0008] A sealing cover, threadedly connected to the barrel mouth;

[0009] A floating plate is arranged below the sealing cover, and the outer diameter of the floating plate is smaller than the diameter of the barrel mouth;

[0010] A pressing and fixing unit, installed on the side wall of the floating plate;

[0011] An air extraction unit is installed at the bottom of the sealing cover, and an air inlet of the air extraction unit is connected to the interior of the inner container;

[0012] An air supply mechanism is installed at the bottom of the sealing cover, an air cavity is opened inside the floating plate, and the air extraction unit is connected with the inside of the air cavity through the air supply mechanism;

[0013] An air pressure display unit is installed on the top of the inner tank and detects the air pressure inside the inner tank;

[0014] A drain pipe is installed at the lower end of the side wall of the inner tank and is connected to the interior of the inner tank. A control valve is installed inside the drain pipe.

[0015] Preferably, the pressing and fixing unit includes four U-shaped grooves provided on the side wall of the floating plate, and the groove wall of each U-shaped groove is hinged with a hollow bar, the end of each hollow bar away from the floating plate is slidably connected with a telescopic rod, and the end of each telescopic rod away from the floating plate is fixedly connected with a floating block, the end of the rod wall of each telescopic rod close to the floating plate is fixedly sleeved with an air push piston, a circular groove is provided at the end of each telescopic rod close to the floating plate, and an elastic pull strip is fixedly provided between the bottom of each circular groove and the inner wall of the hollow bar on the same side, each hollow bar is installed with a detection mechanism, and a flexible fan-shaped membrane is fixedly provided between two adjacent hollow bars.

[0016] Preferably, the vacuum unit includes an integrally formed vacuum cylinder arranged at the bottom of the sealing cover, the end surface of the sealing cover is provided with a circular hole connected to the vacuum cylinder, and a pull rod is slidably inserted inside the circular hole, a vacuum piston is fixedly installed at the bottom of the pull rod, and the vacuum piston is slidably arranged inside the vacuum cylinder, an air inlet hole connected to the inner tank is provided at the bottom of the vacuum cylinder, and an air inlet check valve is installed inside the air inlet hole, an air outlet hole is provided on the side wall of the vacuum cylinder, and an air outlet check valve is installed inside the air outlet hole, the top of the pull rod is rotatably connected to a left fixed column, and the left fixed column is threadedly connected to the sealing cover.

[0017] Preferably, the air supply mechanism includes a sealing cover fixedly installed on the bottom of the sealing cover, the bottom of the sealing cover is fixedly plugged with an air outlet pipe connected to the air outlet hole, the bottom of the sealing cover is fixedly plugged with an air supply hose, and the air supply hose is connected to the air cavity, the cavity wall of the air cavity is fixedly plugged with four connecting hoses, and each connecting hose is connected to the interior of the corresponding hollow bar, the air outlet end of each connecting hose is arranged between the air push piston and the floating plate on the same side, and the sealing cover is provided with an exhaust assembly connected to the sealing cover.

[0018] Preferably, the air pressure display unit includes a barometer fixedly mounted on the top of the inner liner, and the detection end of the barometer is arranged inside the inner liner, an indicator ring is fixedly mounted on the top of the inner liner at a position on one side of the barometer, and an indicator line is marked on the annular end surface of the indicator ring, a rotating disk is provided inside the indicator ring, and an indicator needle is fixedly mounted on the side wall of the rotating disk, and the indicator needle is arranged above the indicator ring, a rotating screw is fixedly inserted into the rotating disk, and the rotating screw is threadedly connected to the top of the inner liner.

[0019] Preferably, the detection mechanism includes a strip cover fixedly installed on the top of four hollow bars, an iron block is slidably connected inside the strip cover, a permanent magnet is fixedly inserted into the rod wall of the telescopic rod, and the position of the permanent magnet corresponds to that of the iron block, an indicator piston is slidably provided inside the strip cover, and the indicator piston is arranged on the side of the iron block away from the floating plate, a strip transparent plate is fixedly inserted on the top of the strip cover, and the end face of the strip transparent plate is marked with scale lines, and the ends of the four floating blocks away from the floating plate are rotatably connected with ball bearings.

[0020] Preferably, the exhaust assembly includes an exhaust hole opened on the end face of the sealing cover, and the exhaust hole is connected to the sealing cover, the opening of the exhaust hole is threadedly connected to a right fixed column, the hole wall of the exhaust hole is opened with an air pressure hole, and an air pressure valve is installed inside the air pressure hole, and the opening of the air pressure hole is threadedly connected to a sealing plug column.

[0021] Preferably, an air supply pipe is fixedly inserted into the top of the inner liner, and a pipe cover is threadedly connected to the pipe opening of the air supply pipe, and the air supply pipe is connected to the interior of the inner liner.

[0022] Compared with the existing technology, the advantages of a steel-plastic composite IBC barrel are:

[0023] By cooperating with each other among the pallet, outer metal frame, inner liner, barrel mouth, sealing cover, floating plate and pressure fixing unit, and by supplying air to the inside of the pressure fixing unit, the liquid surface can be resisted based on the liquid level height, thereby improving the stability of the liquid inside the inner liner and reducing the influence of liquid shaking on the stability of the ton barrel during transportation.

[0024] By cooperating with the exhaust unit and the exhaust mechanism, the air above the liquid surface inside the inner tank can be extracted and supplied to the pressure fixing unit. This can not only reduce the contact between the air inside the inner tank and the stored liquid and reduce the impact of the air on the liquid, but also supply air to the pressure fixing unit.

[0025] The air pressure display unit can cooperate with the vacuum unit to display and record the internal air pressure of the liner, and by comparing the records, it can help personnel determine whether the seal between the sealing cover and the barrel mouth fails, so that when the seal fails, personnel can be reminded in time to inspect the sealing structure.

[0026] By setting up a detection mechanism, the inner diameter of the liner can be detected in cooperation with the pressure fixing unit when the liquid is discharged, which can help personnel to determine whether the liner is over-eroded to a certain extent, and thus can remind personnel to inspect or replace the liner when the liner is over-eroded. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the front three-dimensional structure of a steel-plastic composite IBC ton barrel provided by the present invention;

[0028] Figure 2 It is a schematic diagram of the back three-dimensional structure of a steel-plastic composite IBC ton barrel provided by the present invention;

[0029] Figure 3 This is a schematic diagram of the internal structure of the inner liner of a steel-plastic composite IBC ton barrel provided by the present invention;

[0030] Figure 4 It is a schematic diagram of the internal structure of the floating plate and hollow bars of a steel-plastic composite IBC ton barrel provided by the present invention;

[0031] Figure 5 It is a schematic diagram of the top view structure of the floating plate and hollow bars of a steel-plastic composite IBC ton barrel provided by the present invention;

[0032] Figure 6 The invention provides a steel-plastic composite IBC ton barrel. Figure 4 A magnified view of the structure of part A;

[0033] Figure 7 It is a schematic diagram of the connection structure between the sealing cover and the barrel mouth of a steel-plastic composite IBC barrel provided by the present invention;

[0034] Figure 8 The invention provides a steel-plastic composite IBC ton barrel. Figure 2 A magnified view of the structure of part B;

[0035] Fig. 9 The invention provides a steel-plastic composite IBC ton barrel. Figure 5 A magnified view of the structure of part C.

[0036] In the figure: 1 tray, 2 outer metal frame, 3 liner, 4 barrel mouth, 5 sealing cover, 6 floating plate, 7 pressing fixed unit, 71 U-shaped groove, 72 hollow bar, 73 telescopic rod, 74 floating block, 75 air push piston, 76 round groove, 77 elastic pull bar, 78 flexible fan-shaped membrane, 8 exhaust unit, 81 exhaust cylinder, 82 round hole, 83 pull rod, 84 exhaust piston, 85 air inlet hole, 86 air inlet check valve, 87 air outlet hole, 88 air outlet check valve, 89 left fixed column, 9 air supply mechanism, 91 sealing cover, 92 air outlet pipe, 93 air supply hose, 94 connecting soft tube, 10 air cavity, 11 air pressure display unit, 111 air pressure gauge, 112 indicator ring, 113 indicator line, 114 rotating disk, 115 indicator needle, 116 rotating screw, 12 discharge pipe, 13 control valve, 14 detection mechanism, 141 strip cover, 142 iron block, 143 permanent magnet, 144 indicator piston, 145 strip transparent plate, 146 scale line, 147 ball, 15 exhaust assembly, 151 exhaust hole, 152 right fixed column, 153 air pressure hole, 154 air pressure valve, 155 sealing plugging column, 16 air supply pipe, 17 pipe cover. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0038] like Figure 1-Figure 9 As shown, a steel-plastic composite IBC ton barrel includes a pallet 1 and an outer metal frame 2 arranged on the upper end surface of the pallet 1, and also includes: an inner liner 3, the inner liner 3 is installed on the upper end surface of the pallet 1 and is arranged on the inner side of the outer metal frame 2, and a barrel mouth 4 is opened on the top of the inner liner 3; a sealing cover 5 is threadedly connected to the barrel mouth 4; a floating plate 6 is arranged below the sealing cover 5, and the outer diameter of the floating plate 6 is smaller than the diameter of the barrel mouth 4; a pressing and fixing unit 7 is installed on the side wall of the floating plate 6, and the pressing and fixing unit 7 includes four U-shaped grooves 71 opened on the side wall of the floating plate 6, and the groove wall of each U-shaped groove 71 is hinged with a hollow bar 72, and each hollow bar 72 is slidable at one end away from the floating plate 6 It is connected with a telescopic rod 73, and each telescopic rod 73 is fixedly connected with a floating block 74 at one end away from the floating plate 6, and a pneumatic piston 75 is fixedly sleeved on the rod wall of each telescopic rod 73 at one end close to the floating plate 6. A circular groove 76 is opened at the end of each telescopic rod 73 close to the floating plate 6, and an elastic pull strip 77 is fixedly provided between the bottom of each circular groove 76 and the inner wall of the hollow bar 72 on the same side. Each hollow bar 72 is installed with a detection mechanism 14, and a flexible fan-shaped membrane 78 is fixedly provided between two adjacent hollow bars 72. The flexible fan-shaped membrane 78 is made of anti-corrosion material, which can increase the resistance area of ​​the hollow bar 72 to the liquid surface and improve the effect of stabilizing the liquid surface.

[0039] The air extraction unit 8 is installed at the bottom of the sealing cover 5, and the air inlet of the air extraction unit 8 is connected with the interior of the inner liner 3. The air extraction unit 8 includes an air extraction cylinder 81 which is integrally formed and arranged at the bottom of the sealing cover 5. A circular hole 82 connected with the air extraction cylinder 81 is opened on the end surface of the sealing cover 5, and a pull rod 83 is slidably inserted in the interior of the circular hole 82. An air extraction piston 84 is fixedly installed at the bottom of the pull rod 83, and the air extraction piston 84 is slidably arranged in the interior of the air extraction cylinder 81. An air inlet hole 85 connected with the inner liner 3 is opened at the bottom of the air extraction cylinder 81, and an air inlet check valve 86 is installed in the air inlet hole 85. An air outlet hole 87 is opened on the side wall of the air extraction cylinder 81, and an air outlet check valve 88 is installed in the interior of the air outlet hole 87. The top of the pull rod 83 is rotatably connected with a left fixed column 89, and the left fixed column 89 is threadedly connected to the sealing cover 5. The left fixed column 89 can ensure the sealing at the circular hole 82.

[0040] The air supply mechanism 9 is installed at the bottom of the sealing cover 5, and an air cavity 10 is opened inside the floating plate 6. The air extraction unit 8 is connected to the inside of the air cavity 10 through the air supply mechanism 9. The air supply mechanism 9 includes a sealing cover 91 fixedly installed at the bottom of the sealing cover 5, and an air outlet pipe 92 connected to the air outlet hole 87 is fixedly plugged at the bottom of the sealing cover 91, and an air supply hose 93 is fixedly plugged at the bottom of the sealing cover 91, and the air supply hose 93 is connected to the air cavity 10. Four connecting hoses 94 are fixedly plugged into the cavity wall of the air cavity 10, and each connecting hose 94 is connected to the inside of the corresponding hollow bar 72, and the air outlet end of each connecting hose 94 is arranged between the air push piston 75 on the same side and the floating plate 6. The sealing cover 5 is provided with an exhaust assembly 15 connected to the sealing cover 91. The air supply hose 93 and the connecting hose 94 are both stainless steel hoses, and their outer surfaces are coated with anti-corrosion paint.

[0041] The air pressure display unit 11 is installed on the top of the inner liner 3 and detects the air pressure inside the inner liner 3. The air pressure display unit 11 includes a barometer 111 fixedly installed on the top of the inner liner 3, and the detection end of the barometer 111 is arranged inside the inner liner 3. An indicator ring 112 is fixedly installed on the top of the inner liner 3 at a position on one side of the barometer 111, and an indicator line 113 is engraved on the annular end surface of the indicator ring 112. A rotating disk 114 is provided inside the indicator ring 112, and an indicator needle 115 is fixedly installed on the side wall of the rotating disk 114, and the indicator needle 115 is arranged above the indicator ring 112. The rotating disk 114 is fixedly plugged with a rotating screw 116, and the rotating screw 116 is threadedly connected to the top of the inner liner 3. By rotating the rotating screw 116, the rotating disk 114 can be driven to rotate together, and the stability of the rotating disk 114 can be ensured.

[0042] The drain pipe 12 is installed at the lower end of the side wall of the inner tank 3 and is connected to the interior of the inner tank 3. A control valve 13 is installed inside the drain pipe 12. The detection mechanism 14 includes a strip cover 141 fixedly installed on the top of the four hollow bars 72. The strip cover 141 is slidably connected to the inside of the iron block 142. The rod wall of the telescopic rod 73 is fixedly plugged with a permanent magnet 143, and the position of the permanent magnet 143 corresponds to that of the iron block 142. An indicating piston 144 is slidably provided inside the strip cover 141, and the indicating piston 144 is arranged on the side of the iron block 142 away from the floating plate 6. A strip transparent plate 145 is fixedly plugged on the top of the strip cover 141, and the strip transparent plate 145 is fixedly plugged. 5 is marked with a scale line 146, and the ends of the four floats 74 away from the float plate 6 are rotatably connected to the balls 147. Under the action of the balls 147, the friction between the floats 74 and the inner tank 3 is small, ensuring that the floats 74 can move down with the liquid level. A through hole is provided at the end of the strip cover 141 away from the indicating piston 144 on the same side. The through hole can discharge the air inside the strip cover 141 when the indicating piston 144 moves, so as to avoid affecting the normal movement of the indicating piston 144. Secondly, the through hole is used in conjunction with an external tool (such as a thin rod, so that the indicating piston 144 can be pushed back and reset after a single use for the next use).

[0043] The exhaust assembly 15 includes an exhaust hole 151 opened on the end face of the sealing cover 5, and the exhaust hole 151 is connected to the sealing cover 91, the hole opening of the exhaust hole 151 is threadedly connected with a right fixing column 152, the hole wall of the exhaust hole 151 is opened with an air pressure hole 153, and an air pressure valve 154 is installed inside the air pressure hole 153, and the hole opening of the air pressure hole 153 is threadedly connected with a sealing plugging column 155. Under the action of high air pressure, the valve plate of the air pressure valve 154 will be flushed open, thereby discharging excess air through the air pressure hole 153, and the sealing plugging column 155 can ensure the sealing of the air pressure hole 153.

[0044] An air supply pipe 16 is fixedly inserted at the top of the inner liner 3 , and a pipe cover 17 is threadedly connected to the pipe mouth of the air supply pipe 16 . The air supply pipe 16 is connected to the interior of the inner liner 3 , and gas can be added to the inner liner 3 through the air supply pipe 16 .

[0045] The operating principle of the present invention is now described as follows: when the liquid to be stored is poured into the inner liner 3, the liquid is introduced into the inner liner 3 through the barrel mouth 4 (the distance between the liquid surface and the inner top of the inner liner 3 is not less than 30 cm), and then, the personnel rotate the four hollow bars 72 upward to a vertical state. Since the outer diameter of the floating plate 6 is smaller than the barrel mouth 4, the floating plate 6 and the four hollow bars 72 can be placed into the inner liner 3 through the barrel mouth 4. After entering the inner liner 3, the floating plate 6 will contact the liquid surface, and under the action of buoyancy, the floating plate 6 will be placed in the inner liner 3. Under the action of the floating plate 6, the floating plate 6 will float on the liquid surface, and due to the loss of the restraint of the personnel, the four hollow bars 72 will rotate downward and make the floating block 74 contact with the liquid surface. Under the cooperation of the floating block 74 and the floating plate 6, the four hollow bars 72 are above the liquid surface and in a horizontal state, and then the sealing cover 5 is screwed into the inside of the barrel mouth 4 (the top of the inner liner 3 is equipped with a sealing member on the outside of the barrel mouth 4. After the sealing cover 5 is completely screwed in, the sealing cover 5 will abut against the sealing member, so that the barrel mouth 4 can be sealed), and the installation of the sealing cover 5 is completed;

[0046] After the sealing cover 5 is installed, the personnel twists the left fixing column 89 to separate the left fixing column 89 from the sealing cover 5, and then pulls the left fixing column 89 back and forth up and down. When the left fixing column 89 moves up, it will drive the air pumping piston 84 to move up through the pull rod 83. At this time, the air capacity space below the air pumping piston 84 will increase and form a negative pressure state. Under the action of the internal and external pressure difference, the air above the liquid surface in the inner liner 3 will enter the air pump 81 through the air inlet hole 85, and when the air pumping piston 84 moves downward, the space below the air pumping piston 84 will be compressed. Under the action of the air outlet check valve 88 and the air inlet check valve 86, the air inside the inner liner 3 can only enter the air pump 81 along the air inlet check valve 86, and the air inside the air pump 81 The air can only be discharged along the air outlet one-way valve 88. Therefore, when the air extraction piston 84 moves downward, the air inside the air extraction cylinder 81 will enter the inside of the sealing cover 91 through the air outlet hole 87 and the air outlet pipe 92, and enter the inside of the air cavity 10 through the air supply hose 93, and finally enter the inside of the hollow bar 72 through the four connecting hoses 94. By continuously pulling and pulling the left fixed column 89, the air extraction piston 84 can continuously supply air to the inside of the four hollow bars 72. As the air pressure inside the hollow bars 72 continues to increase, under the action of the air pressure, the air push pistons 75 inside the four hollow bars 72 will drive the telescopic rods 73 on the same side to extend outward, so that the four floating blocks 74 can move toward the four vertical inner walls of the inner liner 3 until the four floating blocks 74 are against the inner wall of the inner liner 3.

[0047] After the sealing cover 5 is installed, the personnel need to unscrew the sealing plug 155 at the air pressure hole 153. When the four floating blocks 74 abut against the inner wall of the liner 3, the personnel continue to pull the left fixed column 89. The air entering the sealing cover 91 cannot be further discharged through the air supply hose 93. At this time, the air pressure inside the sealing cover 91 will continue to increase. Under the action of the increased air pressure, the valve plate of the air pressure valve 154 in the air pressure hole 153 is pushed open, so that the excess air can be discharged.

[0048] When the personnel pull out the left fixed column 89, they need to observe the barometer 111. When the barometer 111 shows a preset value (the preset value can be set according to the manufacturing material of the liner 3 and the size of the inner cavity, for example, -30KPa), the personnel stop pulling out the left fixed column 89, and screw the sealing plug 155 into the air pressure hole 153, and then screw the rotating screw 116. The rotating screw 116 will drive the rotating disk 114 to rotate. When the indicator needle 115 on the rotating disk 114 indicates the indicator line 113 corresponding to the air pressure value displayed on the barometer 111, the rotating screw 116 is stopped (when rotating the rotating screw 116, it is necessary to rotate it clockwise to prevent the indicator needle 115 from rotating. 15 abuts against the top of the indicator ring 112, and the rotating screw 116 will not separate from the inner liner 3 after rotating 360°). Since a large amount of air inside the inner liner 3 is extracted, less air is retained in the inner liner 3 in contact with the liquid, thereby reducing the impact of air on the stored liquid. During the storage of the liquid, if the sealing connection between the sealing cover 5 and the barrel mouth 4 fails, external air will enter the inner liner 3, thereby causing the air pressure value displayed by the barometer 111 to gradually increase. By comparing the air pressure value indicated by the barometer 111 with the air pressure value indicated by the indicator needle 115, the personnel can know whether the seal between the sealing cover 5 and the barrel mouth 4 fails. At this point, the liquid storage work is completed;

[0049] When the stored liquid is transported, the stored liquid is affected by the inertia of the car braking, acceleration, etc., as well as the impact of the road bumps, and the stored liquid will shake. At this time, the liquid surface will shake. Since the four floating blocks 74 at the floating plate 6 are against the four inner walls of the inner liner 3, the position of the floating plate 6 will remain relatively stable. With the flexible fan-shaped membrane 78 between the four hollow bars 72 resisting the liquid surface, the flow amplitude of the liquid to the upper side of the air can be minimized, thereby reducing the shaking of the liquid and improving the stability of the entire ton barrel during transportation.

[0050] When the stored liquid needs to be transferred out, the personnel connects the external pipe or container for receiving the liquid with the drain pipe 12, and then opens the control valve 13. At this time, the liquid in the inner tank 3 will be discharged through the drain pipe 12 (in order to prevent the liquid in the inner tank 3 from being affected by the negative pressure and affecting the normal discharge of the stored liquid, it is necessary to unscrew the pipe cover 17 in advance to allow external air to be replenished into the inner tank 3 so that the inner tank 3 can return to normal pressure. At this time, open the control valve 13, and the stored liquid can flow out normally). As the liquid is discharged, the height of the liquid level gradually decreases, and the floating plate 6 and the floating block 74 will drive the hollow bar 72 as a whole. The liquid level moves down synchronously (because the floating block 74 is against the inner wall of the inner liner 3 through the ball 147, the friction between the floating block 74 and the inner wall of the inner liner 3 is small, ensuring that the floating block 74 and the floating plate 6 can move down normally). When the inner wall of the inner liner 3 is not eroded, the structure of the inner wall of the inner liner 3 is stable, so the floating block 74 will move down stably with the liquid level. If the inner wall of the inner liner 3 is eroded, the inner wall of the inner liner 3 will become thinner due to erosion. When the floating block 74 moves to the thinned position, the distance between the inner wall at the thinned position and the floating plate 6 becomes larger. Under the action of air pressure, the floating block 74 will drive the telescopic rod 73 to move a certain distance again. When the telescopic rod 73 moves, it will drive the permanent magnet 143 to move synchronously, and the permanent magnet 143 will produce a magnetic attraction on the iron block 142. Therefore, under the magnetic attraction, the iron block 142 will slide synchronously along the inside of the strip cover 141, and when the iron block 142 slides, it will push the indicating piston 144 to move synchronously. When the inner liner 3 is not corroded, since the size of the inner liner 3 is fixed, the final distance moved by the indicating piston 144 is determined. When the inner wall of the inner liner 3 is corroded, the floating block 74 drives the telescopic rod 73 to move a larger distance, and the moving distance of the indicating piston 144 will also increase. Therefore, the personnel can check the inner wall of the inner liner 3. By observing the moving distance of the indicating piston 144 (this checking action is performed after the liquid is discharged, that is, the sealing cover 5 is unscrewed, and each hollow strip 72 is taken out and then checked), it can help personnel to judge whether the inner wall of the liner 3 is corroded to a certain extent (by providing personnel with a preliminary judgment basis for whether the liner 3 is corroded each time the liquid is transferred out, it is possible to find out in time that the liner may be corroded, assist in daily inspections, prevent accidents, and ensure transportation safety. At the same time, it can also reduce costs, reduce dependence on expensive testing equipment, and make quick judgments when the liquid is transferred out, saving time and improving work efficiency);

[0051] After all the liquid is discharged, the right fixing column 152 is unscrewed. At this time, the excess air in the sealing cover 91, the air cavity 10 and the hollow strip 72 will be discharged through the exhaust hole 151. Under the action of the elastic pull strip 77, each telescopic rod 73 will move back and reset. When each telescopic rod 73 moves back, the permanent magnet 143 on the telescopic rod 73 will move back and reset along with the telescopic rod 73, and the iron block 142 inside the strip cover 141 will also move back and reset under the action of magnetic attraction. Then the sealing cover 5 is unscrewed. The sealing cover 5 will pull the floating plate 6 upward through the air supply hose 93. Due to the loss of liquid obstruction, each hollow strip 72 will rotate downward to a vertical state under the action of gravity, and the floating plate 6 will be lifted up through the sealing cover 5 and the air supply hose 93. 6 is pulled out from the barrel mouth 4, and the four hollow bars 72 will be pulled out together, and then the personnel can check the position of each indicating piston 144 (the position of the indicating piston 144 can be judged by the scale line 146 on the strip transparent plate 145), wherein, when the hollow bar 72 is rotated downward to a vertical state, under the friction between the indicating piston 144, the strip cover 141 and the hollow bar 72, the indicating piston 144 can overcome its own gravity and will not slide down (the iron block 142 moves back and resets with the permanent magnet 143 under the action of magnetic attraction, so it will not cause downward pressure on the indicating piston 144 and will not affect the position of the indicating piston 144), ensuring the position accuracy of the indicating piston 144.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A steel-plastic composite IBC ton barrel, comprising a tray (1) and an outer metal frame (2) arranged on the upper end surface of the tray (1), characterized in that: Also includes: An inner liner (3) is mounted on the upper end surface of the tray (1) and is arranged on the inner side of the outer metal frame (2); a barrel opening (4) is formed at the top of the inner liner (3); A sealing cover (5) threadably connected to the barrel opening (4); A floating plate (6) is arranged below the sealing cover (5), and the outer diameter of the floating plate (6) is smaller than the diameter of the barrel mouth (4); A pressing and fixing unit (7) mounted on a side wall of the floating plate (6); An air extraction unit (8) is installed at the bottom of the sealing cover (5), and an air inlet of the air extraction unit (8) is connected to the interior of the inner container (3); An air supply mechanism (9) is installed at the bottom of the sealing cover (5); an air cavity (10) is provided inside the floating plate (6); and the air extraction unit (8) is connected to the inside of the air cavity (10) through the air supply mechanism (9); An air pressure display unit (11) is installed on the top of the inner liner (3) and detects the air pressure inside the inner liner (3); A liquid discharge pipe (12) is installed at the lower end of the side wall of the inner container (3) and is connected to the interior of the inner container (3); a control valve (13) is installed inside the liquid discharge pipe (12); The pressing and fixing unit (7) comprises four U-shaped grooves (71) formed on the side wall of the floating plate (6), and the groove wall of each U-shaped groove (71) is hinged with a hollow bar (72), the end of each hollow bar (72) away from the floating plate (6) is slidably connected to a telescopic rod (73), and the end of each telescopic rod (73) away from the floating plate (6) is fixedly connected to a floating block (74), the end of the rod wall of each telescopic rod (73) close to the floating plate (6) is fixedly sleeved with an air push piston (75), the end of each telescopic rod (73) close to the floating plate (6) is formed with a circular groove (76), and an elastic pull bar (77) is fixedly provided between the groove bottom of each circular groove (76) and the inner wall of the hollow bar (72) on the same side, each hollow bar (72) is installed with a detection mechanism (14), and a flexible fan-shaped membrane (78) is fixedly provided between two adjacent hollow bars (72); The air extraction unit (8) comprises an air extraction cylinder (81) integrally formed and arranged at the bottom of the sealing cover (5); a circular hole (82) connected to the air extraction cylinder (81) is provided on the end surface of the sealing cover (5); a pull rod (83) is slidably inserted inside the circular hole (82); an air extraction piston (84) is fixedly installed at the bottom of the pull rod (83); the air extraction piston (84) is slidably arranged inside the air extraction cylinder (81); an air inlet hole (85) connected to the inner liner (3) is provided at the bottom of the air extraction cylinder (81); an air inlet check valve (86) is installed inside the air inlet hole (85); an air outlet hole (87) is provided on the side wall of the air extraction cylinder (81); an air outlet check valve (88) is installed inside the air outlet hole (87); a left fixed column (89) is rotatably connected to the top of the pull rod (83); and the left fixed column (89) is threadedly connected to the sealing cover (5); The air supply mechanism (9) comprises a sealing cover (91) fixedly mounted on the bottom of the sealing cover (5); an air outlet pipe (92) connected to the air outlet hole (87) is fixedly plugged into the bottom of the sealing cover (91); an air supply hose (93) is fixedly plugged into the bottom of the sealing cover (91), and the air supply hose (93) is connected to the air cavity (10); four connecting hoses (94) are fixedly plugged into the cavity wall of the air cavity (10), and each connecting hose (94) is connected to the interior of the corresponding hollow strip (72); the air outlet end of each connecting hose (94) is arranged between the air push piston (75) and the floating plate (6) on the same side; and the sealing cover (5) is provided with an exhaust assembly (15) connected to the sealing cover (91); The air pressure display unit (11) comprises a barometer (111) fixedly mounted on the top of the inner liner (3), and a detection end of the barometer (111) is arranged inside the inner liner (3); an indicator ring (112) is fixedly mounted on the top of the inner liner (3) at a position located on one side of the barometer (111), and an indicator line (113) is marked on the annular end surface of the indicator ring (112); a rotating disk (114) is arranged inside the indicator ring (112), and an indicator needle (115) is fixedly mounted on the side wall of the rotating disk (114), and the indicator needle (115) is arranged above the indicator ring (112); a rotating screw (116) is fixedly inserted into the rotating disk (114), and the rotating screw (116) is threadedly connected to the top of the inner liner (3).

2. The steel-plastic composite IBC ton barrel according to claim 1, characterized in that: The detection mechanism (14) comprises a strip cover (141) fixedly mounted on the top of four hollow bars (72), an iron block (142) being slidably connected inside the strip cover (141), a permanent magnet (143) being fixedly inserted into the rod wall of the telescopic rod (73), and the position of the permanent magnet (143) corresponds to that of the iron block (142), an indicating piston (144) being slidably provided inside the strip cover (141), and the indicating piston (144) being arranged on a side of the iron block (142) away from the floating plate (6), a strip transparent plate (145) being fixedly inserted into the top of the strip cover (141), and a scale mark (146) being marked on the end surface of the strip transparent plate (145), and a ball (147) being rotatably connected to one end of each of the four floating blocks (74) away from the floating plate (6).

3. The steel-plastic composite IBC ton barrel according to claim 1, characterized in that: The exhaust assembly (15) comprises an exhaust hole (151) formed on the end surface of the sealing cover (5), and the exhaust hole (151) is connected to the sealing cover (91); a right fixing column (152) is threadedly connected to the opening of the exhaust hole (151); a pneumatic hole (153) is formed on the hole wall of the exhaust hole (151), and a pneumatic valve (154) is installed inside the pneumatic hole (153); and a sealing plugging column (155) is threadedly connected to the opening of the pneumatic hole (153).

4. The steel-plastic composite IBC ton barrel according to claim 1, characterized in that: An air supply pipe (16) is fixedly inserted into the top of the inner liner (3), and a pipe cover (17) is threadedly connected to the pipe opening of the air supply pipe (16), and the air supply pipe (16) is communicated with the interior of the inner liner (3).

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