Feeding device for unmanned operation system of tank car

Abstract

The utility model discloses a feeding device for an unmanned operation system of a tank car, which comprises a rack, a feeding device, a feeding device, a feeding device, a feeding device and a discharging device, wherein the rack comprises two lifting frames and a top frame erected at the tops of the two lifting frames; the feeding assembly comprises a feeding pipe and a feeding pump, the output end of the feeding pump communicates with the feeding pipe, and the feeding pipe is arranged downwards and connected with a distance sensor; the camera is arranged below the top frame and is arranged downwards; and the plane moving assembly is in driving connection with the feeding pipe so as to adjust the horizontal position of the feeding pipe. According to the feeding device for the tank car unmanned operation system, after the position of a loading opening of a tank car tank body is detected through a camera, the position of the feeding pipe is adjusted through a plane moving assembly to enable the feeding pipe to directly face the loading opening, then the lifting frame drives the top frame to descend, the bottom of the feeding pipe enters the loading opening, and liquid in a storage tank is input into the tank car tank body in cooperation with a feeding pump; and then the lifting frame drives the top frame to ascend to enable the feeding pipe to be separated from the loading opening, automatic feeding is achieved, the burden of workers is relieved, and the loading efficiency is improved.

Description

A feeding device for unmanned tank truck operation system Technical Field

[0001] This utility model relates to the technical field of unmanned tank truck operation systems, and in particular to a feeding device for unmanned tank truck operation systems. Background Technology

[0002] Liquid tank trucks (hereinafter referred to as "tank trucks") are widely and important in port enterprises, providing efficient, flexible and safe solutions for the transportation, storage and loading and unloading of liquid cargo, and are an indispensable part of the logistics operations of port enterprises.

[0003] Traditional liquid tanker loading requires workers to open the loading port of the tanker, connect the feed pipe to the loading port, and start the feed pump. The feed pump then delivers the temporarily stored liquid from the storage tank to the tanker through the pump and feed pipe. After that, the feed pipe is disconnected and the loading port is closed. This loading process requires a lot of manual labor, resulting in low efficiency and increased worker workload. Before and after loading, the evaporation of gases from the tanker and the leakage of residual liquid from the feed pipe pollute the surrounding environment and further increase the workload for workers.

[0004] Therefore, it is necessary to provide a feeding device to reduce the workload of workers, improve loading efficiency, and reduce pollution. Summary of the Invention

[0005] The purpose of this invention is to overcome the defects in the existing technology and provide a feeding device for unmanned tank truck operation systems that improves loading efficiency and reduces pollution.

[0006] To achieve the above-mentioned technical effects, the technical solution of this utility model is: a feeding device for an unmanned tank truck operation system, comprising:

[0007] The frame includes two horizontally distributed and height-adjustable lifting frames and a top frame mounted on top of the two lifting frames. The distance between the two lifting frames is greater than the width of the tank car, and the height of the top frame is greater than the height of the tank car.

[0008] The feeding assembly includes a feeding pipe and a feeding pump. The input end of the feeding pump is connected to the storage tank, and the output end is connected to the feeding pipe. The feeding pipe is arranged downward and its outer diameter is smaller than the inner diameter of the loading port at the top of the tank truck. The feeding pipe is connected to a downward distance sensor.

[0009] The camera is positioned below the top frame and faces downwards;

[0010] A planar moving component is mounted on the top frame and driven to the feed pipe to adjust the horizontal position of the feed pipe.

[0011] Preferably, in order to reduce residual liquid leakage at the bottom of the feed pipe after loading is completed, the feed assembly further includes a sealing unit, which is used to control the connection and isolation between the feed pipe and the feed pump.

[0012] Preferably, in order to control the connection and blockage between the feed pipe and the feed pump, the sealing unit includes a sealing piston, a sealing shell, and a bidirectional air pump. The sealing shell is fixedly connected between the top of the feed pipe and the input end of the feed pump. The sealing piston slides vertically between the feed pipe and the sealing shell to form a sealing cavity. The circumferential outer edge of the sealing piston is sealed to the circumferential cavity wall of the sealing cavity. One end of the bidirectional air pump is fixedly connected to the top of the sealing shell.

[0013] Preferably, in order to increase the sealing performance between the sealing piston and the sealing shell and ensure that the sealing piston moves stably in the vertical direction, the sealing shell includes a buffer shell and a guide shell that are connected in sequence in the vertical direction and have decreasing inner diameters. The buffer shell is fixedly connected between the feed pipe and the feed pump, and the guide shell is connected to the bidirectional air pump. The circumferential inner wall of the guide shell is sealed to the circumferential outer edge of the top of the sealing piston.

[0014] Preferably, in order to further increase the sealing between the feed pipe and the sealing piston, the bottom of the feed pipe is a downward constricted shape, and the bottom end of the inner cavity of the feed pipe is adapted to the bottom of the sealing piston.

[0015] Preferably, in order to reduce environmental pollution and ensure safe loading of tank trucks, the other end of the bidirectional air pump is fixedly connected to a filter device and a protective gas storage tank through an exhaust tee pipe. An air inlet valve and a protective valve are respectively provided between the filter device and the protective gas storage tank and the bidirectional air pump. An air injection port and a filter outlet are also provided on the protective gas storage tank and the filter device, respectively. An air injection valve and an air outlet valve are respectively connected to the air injection port and the filter outlet. The filter device is equipped with a filter element.

[0016] Preferably, in order to facilitate long-term purification use of the filtration device, the filter element is detachably installed inside the filtration device.

[0017] Preferably, in order to reduce the amount of gas that diffuses directly from inside the tanker to the outside during loading, the sealing unit further includes a sealing cover that is fixedly fitted downwards and outside the feed pipe or the sealing shell, and the bidirectional air pump is connected to the inner cavity of the sealing shell and the sealing cover respectively through a three-way air extraction pipe.

[0018] Preferably, in order to prevent rigid contact wear between the sealing cover and the top of the tanker, an elastic cushioning pad is provided at the bottom of the sealing cover.

[0019] Preferably, in order to facilitate the horizontal movement of the feed pipe and the sealing shell, and at the same time reduce the power consumption of the translational moving component driving the feed pipe to move, both the bidirectional air pump and the feed pump are fixed on the top frame. The bidirectional air pump is connected to the air extraction three-way pipe through the first hose, and the output end of the feed pump is connected to the buffer shell through the second hose.

[0020] In summary, compared with the prior art, the feeding device of this utility model for the unmanned operation system of tank trucks detects the position of the loading port of the tank truck by a camera, and then the planar moving component adjusts the position of the feeding pipe to be directly opposite the loading port. Then, the lifting frame drives the top frame to descend, so that the bottom of the feeding pipe enters the loading port. In conjunction with the feeding pump, the liquid in the storage tank is input into the tank truck. Afterwards, the lifting frame drives the top frame to rise, so that the feeding pipe is removed from the loading port, realizing automatic feeding, reducing the burden on workers and improving loading efficiency. Attached Figure Description

[0021] Figure 1 is a schematic diagram of the structure of the first embodiment;

[0022] Figure 2 is a structural schematic diagram of the first embodiment from another perspective;

[0023] Figure 3 is a schematic diagram of the explosion in Figure 1;

[0024] Figure 4 is a schematic diagram of the filter device of the first embodiment;

[0025] Figure 5 is a schematic diagram of the cross-sectional structure of Figure 4;

[0026] Figure 6 is a schematic diagram of the planar moving component of the first embodiment;

[0027] Figure 7 is a schematic diagram of the explosion in Figure 6;

[0028] Figure 8 is a schematic diagram of the connection structure between the feeding assembly and the top plate in the first embodiment;

[0029] Figure 9 is an exploded view of the feeding assembly in the first embodiment;

[0030] Figure 10 is a cross-sectional view of the feeding assembly in the first embodiment;

[0031] Figure 11 is a cross-sectional structural diagram of another usage state of the feeding assembly of the first embodiment;

[0032] Figure 12 is a schematic diagram of the sealing cover of the second embodiment;

[0033] In the diagram: 1. Frame; 11. Lifting frame; 111. Side plate; 112. Hydraulic cylinder; 113. Guide sleeve; 114. Guide column; 12. Top frame; 121. Top plate; 1211. Opening; 122. Top cover; 2. Feed pipe; 21. Distance sensor; 3. Feed pump; 31. Second hose; 4. Camera; 5. Planar movement assembly; 51. Translation unit; 511. Translation motor; 512. Lead screw; 5 13. Bushing; 514. Translation block; 5141. Connecting column; 515. Guide rail; 52. Translation plate; 6. Sealing unit; 61. Sealing piston; 62. Sealing shell; 621. Buffer shell; 622. Guide shell; 623. Protruding plate; 63. Two-way air pump; 631. Exhaust tee pipe; 632. First hose; 64. Sealing cover; 641. Connecting hole; 65. Suction tee pipe; 66. Buffer pad; 7. Filter device; 71. Filter barrel; 711. Filter inlet; 712. Inlet valve; 72. Filter cover; 721. Filter outlet; 722. Outlet valve; 723. Positioning pressure ring; 73. Bolt; 74. Nut; 75. Mesh plate; 76. Filter element; 8. Protective gas storage tank; 81. Suction port; 82. Protective valve; 83. Injection port; 84. Injection valve. Detailed Implementation

[0034] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0035] First Embodiment

[0036] As shown in Figures 1-11, the first embodiment of this utility model provides a feeding device for an unmanned tank truck operation system, comprising:

[0037] The frame 1 includes two horizontally distributed and height-adjustable lifting frames 11 and a top frame 12 mounted on top of the two lifting frames 11. The distance between the two lifting frames 11 is greater than the width of the tank car, and the height of the top frame 12 is greater than the height of the tank car.

[0038] The feeding assembly includes a feeding pipe 2 and a feeding pump 3. The input end of the feeding pump 3 is used to connect to the storage tank, and the output end is connected to the feeding pipe 2. The feeding pipe 2 is set downward and its outer diameter is smaller than the inner diameter of the loading port on the top of the tank truck. The feeding pipe 2 is connected to a downward distance sensor 21.

[0039] Camera 4 is positioned below the top frame 12 and facing downwards;

[0040] The planar moving component 5 is mounted on the top frame 12 and driven to the feed pipe 2 to adjust the horizontal position of the feed pipe 2.

[0041] In this embodiment, the frame 1 mainly consists of a top frame 12 and two lifting frames 11. The frame 1 and the ground enclose a passage for loading when the tank truck passes through. The distance between the two lifting frames 11 is greater than the width of the tank truck, and the lifting frames 11 can drive the top frame 12 to move up and down. The height of the moving path of the top frame 12 is greater than the height of the tank truck, which facilitates the passage of the tank truck between the top frame 12 and the two lifting frames 11.

[0042] When the tank truck enters between the top frame 12 and the two lifting frames 11, the camera 4 captures the image below and detects the position of the tank truck loading port (which is opened by a worker). Then, the position of the feed pipe 2 is adjusted by the planar moving component 5 so that the feed pipe 2 is directly opposite the tank truck loading port. The lifting frame 11 then drives the top frame 12 to descend. The distance sensor 21 detects the distance between the top frame and the top of the tank truck body, ensuring that the bottom of the feed pipe 2 can enter the tank truck loading port while the outer diameter of the feed pipe 2 is smaller than the inner diameter of the loading port at the top of the tank truck.

[0043] Then, the feed pump 3 is started, drawing out the liquid from the storage tank and transporting it to the tank of the tank truck through the feed pipe 2. After the transport is completed, the lifting frame 11 drives the top frame 12 to move upward, so that the feed pipe 2 is separated from the loading port. Then, the workers close the loading port, and the tank truck can be driven to the transportation destination.

[0044] Compared with the prior art, the feeding device of this embodiment, when the tank truck enters the inner side of the frame 1 and the loading port on the top of the tank truck is open, uses the camera 4 to detect the position of the loading port of the tank truck, and the planar moving component 5 to adjust the position of the feed pipe 2 so that the feed pipe 2 is aligned with the loading port. Then, the lifting frame 11 drives the top frame 12 to move down, so that the bottom of the feed pipe 2 enters the loading port. Then, the feed pump 3 draws out the liquid in the storage tank to complete the automatic feeding of liquid chemicals, which greatly reduces the workload of workers, lightens the workload, and improves the loading efficiency.

[0045] As shown in Figures 1-3, in the frame 1, the lifting frame 11 includes a vertically arranged side plate 111, which is fixed to the ground. The top of the side plate 111 is equipped with an axially vertical hydraulic cylinder 112, a guide sleeve 113, and a guide post 114. The top frame 12 includes a horizontal top plate 121 and a top cover 122 fixed above the top plate 121. The top plate 121 is a rectangular plate, and its length direction is parallel to the distribution direction of the two lifting frames 11. An opening 1211 is provided at the center, and the opening 1211 is located directly below the top cover 122; the cylinder barrel of the oil cylinder 112 is fixed to the top surface of the side plate 111, the top end of the piston rod is fixedly connected to the top plate 121, the guide sleeve 113 is fixed to the top surface of the side plate 111, the guide post 114 is fixed to the bottom surface of the top plate 121, and the guide post 114 and the guide sleeve 113 slide in the vertical direction; the planar moving component 5 is provided inside the top cover 122 and is connected to the feed pipe 2.

[0046] With the above structure, the top plate 121 is driven by the hydraulic cylinder 112 to move steadily up and down in the vertical direction under the sliding cooperation of the guide post 114 and the guide sleeve 113. This drives the top cover 122 and the planar moving component 5 inside the top cover 122 to move up and down, so that the feed pipe 2 moves up and down. The planar moving component 5 can drive the feed pipe 2 to move on the horizontal plane to adjust its horizontal position, so that the feed pipe 2 can be aligned with the loading port of the tanker.

[0047] As shown in Figures 7 and 8, the planar moving assembly 5 includes a horizontal translation plate 52 and translation units 51 disposed on the upper and lower sides of the translation plate 52. The output end of the upper translation unit 51 is fixedly connected to the translation plate 52 to drive the translation plate 52 to move along the width direction parallel to the top plate 121. The lower translation unit 51 is disposed on the bottom surface of the translation plate 52, and its output end is connected to the feed pipe 2 to drive the feed pipe 2 to move along the length direction parallel to the top plate 121. In this way, by the cooperation of the two translation units 51, the horizontal position of the feed pipe 2 can be adjusted so that it is aligned with the loading port of the tanker.

[0048] More specifically, the translation unit 51 includes a translation motor 511, with a lead screw 512 fixedly connected coaxially to the output end of the translation motor 511. A bushing 513 is provided at the end of the lead screw 512 away from the translation motor 511, and a translation block 514 is threadedly connected to the lead screw 512. The translation block 514 is slidably sleeved on the outside of the guide rail 515. For the upper translation unit 51, the translation motor 511 and the bushing 513 are both fixed to the inner top wall of the top cover 122. The axial direction of the lead screw 512 and the length of the guide rail 515 are both parallel to the width direction of the top plate 121, and the translation block 514 is fixedly connected to the top surface of the translation plate 52. For the lower translation unit 51, the translation motor 511 and the bushing 513 are both fixed to the bottom of the translation plate 52. The axial direction of the lead screw 512 and the length direction of the guide rail 515 are both parallel to the length direction of the top plate 121, and the translation block 514 is fixedly connected to the feed pipe 2.

[0049] With the above structure, the translation motor 511 starts and drives the lead screw 512 to rotate around its own axis under the support of the bushing 513. The lead screw acts on the translation block 514 through the thread, so that the translation block 514 moves along the length direction of its corresponding guide rail 515, thereby realizing the adjustment of the horizontal position of the feed pipe 2.

[0050] A further improvement is that the feeding assembly also includes a sealing unit 6, which is used to control the connection and isolation between the feeding pipe 2 and the feeding pump 3.

[0051] By setting up a sealing unit 6, when loading cargo into the tank truck, the sealing unit 6 controls the connection between the feed pipe 2 and the feed pump 3, so that the feed pump 3 can transport the liquid in the storage tank to the tank truck through the feed pipe 2. At other times, such as before and after loading, the sealing unit 6 controls the feed pipe 2 to be isolated from the feed pump 3, so as to prevent the liquid in the input pipe of the feed pump 3 from falling down through the feed pipe 2 and spreading to the outside. In this way, the pollution to the surrounding environment is reduced, thereby reducing the cleaning burden on workers.

[0052] A further improvement is that the sealing unit 6 includes a sealing piston 61, a sealing shell 62, and a bidirectional air pump 63. The sealing shell 62 is fixedly connected between the top of the feed pipe 2 and the input end of the feed pump 3. The sealing piston 61 slides vertically between the feed pipe 2 and the sealing shell 62 to form a sealing cavity. The circumferential outer edge of the sealing piston 61 is sealed to the circumferential cavity wall of the sealing cavity. One end of the bidirectional air pump 63 is fixedly connected to the top of the sealing shell 62.

[0053] More specifically, as shown in Figures 8-11, the sealing shell 62 includes a buffer shell 621 and a guide shell 622 that are connected sequentially along the vertical direction and have decreasing inner diameters. The buffer shell 621 is fixedly connected between the feed pipe 2 and the feed pump 3. The guide shell 622 is connected to the bidirectional air pump 63, and the circumferential inner wall of the guide shell 622 is sealed to the circumferential outer edge of the top of the sealing piston 61. The distance sensor 21 is fixed to the side wall of the buffer shell 621.

[0054] The feed pipe 2 extends vertically, and its top end is fixedly connected to the buffer shell 621. The top of the buffer shell 621 is fixedly connected to the guide shell 622 extending vertically upward. The outer circumferential edge of the top of the sealing piston 61 is sealed to the inner circumferential wall of the guide shell 622. There is a gap between the sealing piston 61 and the inner side wall of the buffer shell 621. The input end of the feed pump 3 is fixedly connected to the side wall of the buffer shell 621 and communicates with the inner cavity of the buffer shell 621. The bidirectional air pump 63 is fixedly connected to the top of the guide shell 622.

[0055] With the above structure, the operation of the sealing piston 61 can be controlled by adjusting the working mode of the bidirectional air pump 63. When the bidirectional air pump 63 injects air into the guide shell 622, the sealing piston 61 moves downward and eventually blocks the feed pipe 2, thus isolating the feed pipe 2 from the feed pump 3. This prevents some of the solution from falling down through the feed pipe 2 and spreading to the outer diameter, thus avoiding the output end of the feed pipe 2 and the buffer shell 621. When the bidirectional air pump 63 draws air from the guide shell 622, a negative pressure is formed in the guide shell 622, which attracts the sealing piston 61 to move upward, thereby connecting the feed pipe 2 with the feed pump 3. This facilitates the feed pump 3 to draw the solution from the storage tank and transport it into the tank truck body through the buffer shell 621 and the feed pipe 2 in sequence.

[0056] A further improvement is that the bottom of the feed pipe 2 is a downward-pointing constriction, and the bottom end of the inner cavity of the feed pipe 2 is adapted to the bottom of the sealing piston 61. Specifically, the bottom of the feed pipe 2 is a downward-pointing frustoconical shape. With this structure, as shown in Figure 10, when the bidirectional air pump 63 inflates the guide housing 622, the bottom of the sealing piston 61 can seal against the inner wall of the feed pipe 2, ensuring a tight seal and preventing liquid in the buffer housing 621 from falling to the outside through the feed pipe 2. The sealing piston 61 has a barrel-shaped structure with an open top to reduce its weight and facilitate its vertical movement. The bottom of the sealing piston 61 is also frustoconical, while the middle and upper parts are cylindrical, with an outer diameter equal to the inner diameter of the guide housing 622 and the middle and upper parts of the feed pipe 2.

[0057] A further improvement is that the other end of the bidirectional air pump 63 is fixedly connected to the filter device 7 and the protective gas tank 8 via an exhaust tee pipe 631. An air inlet valve 712 and a protective valve 82 are respectively provided between the filter device 7 and the protective gas tank 8 and the bidirectional air pump 63. An air injection port 83 and a filter outlet 721 are also provided on the protective gas tank 8 and the filter device 7, respectively. An air injection valve 84 and an air outlet valve 722 are respectively connected to the air injection port 83 and the filter outlet 721. A filter element 76 is provided inside the filter device 7. The filter element 76 is detachably installed inside the filter device 7. The sealing unit 6 also includes a sealing cover 64 that is downward and fixedly sleeved on the feed pipe 2 or the sealing shell 62. The bidirectional air pump 63 is connected to the inner cavity of the sealing shell 62 and the sealing cover 64 via an exhaust tee pipe 65. An elastic buffer pad 66 is provided at the bottom of the sealing cover 64.

[0058] The distance sensor 21 detects the distance between the top of the tank truck and the top of the tank. The lifting frame 11 controls the top frame 12 to descend, so that the buffer pad 66 at the bottom of the sealing cover 64 contacts the top of the tank truck to prevent the sealing cover 64 from colliding with the top of the tank truck. At the same time, the bottom end of the feed pipe 2 extends into the loading port of the tank truck. Then, the bidirectional air pump 63 starts, opens the air inlet valve 712, closes the protection valve 82, and starts the air extraction mode to extract the air from the guide shell 622 and the sealing cover 64, so that the sealing piston 61 moves upward, so that the feed pump 3 can transport the solution in the storage tank into the tank truck through the buffer shell 621 and the feed pipe 2. The air extracted by the bidirectional air pump 63 contains the gas in the tank truck. This part of the gas is filtered by the filter device 7 and then discharged to the outside, avoiding direct discharge and pollution to the surrounding environment.

[0059] After feeding is complete, the air inlet valve 712 is closed and the protective valve 82 is opened. The bidirectional air pump 63 draws protective gas from the protective gas storage tank 8. The protective gas is usually nitrogen or an inert gas. The protective gas passes through the bidirectional air pump 63 and the suction three-way pipe 65. Part of the protective gas enters the guide shell 622, and the other part is injected into the sealing cover 64. It enters the tank car body through the gap between the inner wall of the loading port and the feed pipe 2. Then the bidirectional air pump 63 stops operating, and the lifting frame 11 drives the top frame 12 to move upward, causing the sealing cover 64 and the feed pipe 2 to separate from the loading port. The buffer pad 66 is preferably a rubber pad. The buffer pad 66 ensures the sealing performance, reduces the gap between the sealing cover 64 and the top of the tank car, and thus reduces the diffusion of gas in the tank car body to the outside environment during the filling process, which may cause pollution to the surrounding environment.

[0060] The protective gas storage tank 8 is fixed on the top plate 121. A suction port 81 is provided on one side of the lower part of the side wall. The suction port 81 is equipped with a protective valve 82 and is connected to one end of the exhaust tee pipe 631. After the protective valve 82 is opened, the protective gas in the protective gas storage tank 8 can enter the sealing cover 64 through the exhaust tee pipe 631 and the bidirectional air pump 63. The top of the protective gas storage tank 8 is also equipped with a barometer and an injection port 83. The injection port 83 is connected to an injection valve 84. The barometer detects the air pressure in the protective gas storage tank 8. When the internal air pressure is low, the injection port 83 can be opened and the operator can inject protective gas into the protective gas storage tank 8.

[0061] As shown in Figures 4 and 5, the filter device 7 includes a filter barrel 71 with an open top. The filter barrel 71 is fixed to the top plate 121 and is detachably covered with a filter cover 72 by bolts 73 and nuts 74 connected by multiple sets of threads. A filter inlet 711 is provided on the lower part of the side wall of the filter barrel 71. The filter inlet 711 is connected to the exhaust tee pipe 631 and is equipped with an air inlet valve 712. A horizontal mesh plate 75 is fixed inside the filter barrel 71. A filter element 76 is located above the mesh plate 75. There are various options for the filter element 76, such as activated carbon packing. A positioning pressure ring 723 is fixed below the filter cover 72. The circumferential outer edge of the positioning pressure ring 723 is sealed to the circumferential inner wall of the top of the filter barrel 71. The positioning pressure ring 723 abuts against the top of the filter element 76. This facilitates the precise docking of the filter cover 72 and the filter barrel 71 and makes it easy to fix the filter element 76. A filter outlet 721 is provided on the filter cover 72, and an air outlet valve 722 is connected to the filter outlet 721.

[0062] During feeding, the inlet valve 712 and outlet valve 722 are opened, allowing harmful gases containing residual gas from inside the tank to be pumped from the filter inlet 711 into the filter tank 71 via the bidirectional air pump 63. After being filtered by the filter element 76, the gases are discharged from the filter outlet 721. At other times, the inlet valve 712 and outlet valve 722 are closed. After the filter device 7 has been used for a period of time, the filter cover 72 should be removed periodically and the filter element 76 inside the filter tank 71 should be replaced.

[0063] A further improvement is that both the bidirectional air pump 63 and the feed pump 3 are fixed on the top frame 12. The bidirectional air pump 63 is connected to the air extraction three-way pipe 65 through the first hose 632, and the output end of the feed pump 3 is connected to the buffer shell 621 through the second hose 31.

[0064] More specifically, a protruding plate 623 is fixed on the outer wall of the guide shell 622. In the translation unit 51 below the planar moving assembly 5, the translation block 514 is connected to the protruding plate 623 through the connecting column 5141. This allows the planar moving assembly 5 to move only the sealing shell 62 and the feed pipe 2 during operation, saving energy. At the same time, through the deformation of the first hose 632 and the second hose 31, the bidirectional air pump 63 remains in communication with the guide shell 622 and the sealing cover 64, and the feed pump 3 remains in communication with the buffer shell 621.

[0065] Second Embodiment

[0066] As shown in Figure 12, the second embodiment of this utility model is a feeding device for an unmanned tank truck operation system. It is based on the first embodiment, but the difference is that a connecting hole 641 is provided on the side wall of the sealing cover 64.

[0067] By setting the connecting hole 641, the inner cavity of the sealing cover 64 is kept in a certain communication with the outside. When the bidirectional air pump 63 draws air through the suction three-way pipe 65, in addition to ensuring that the outside gas and the exhaust gas in the tank truck are delivered into the filter device 7 through the suction three-way pipe 65, the air in the guide shell 622 enters the filter device 7 through the suction three-way pipe 65. Since the outside air pressure is the same as the air pressure in the sealing cover 64, while the air pressure in the guide shell 622 is reduced, it can further ensure that when the bidirectional air pump 63 draws air, the sealing piston 61 moves upward, which facilitates the feed pump 3 to feed into the tank truck through the buffer shell 621 and the feed pipe 2.

[0068] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A feeding device for an unmanned tank truck operation system, characterized in that, include: The frame includes two horizontally distributed and height-adjustable lifting frames and a top frame mounted on top of the two lifting frames. The distance between the two lifting frames is greater than the width of the tank truck, and the height of the top frame is greater than the height of the tank truck. The feeding assembly includes a feeding pipe and a feeding pump. The input end of the feeding pump is connected to the storage tank, and the output end is connected to the feeding pipe. The feeding pipe is downwardly oriented and its outer diameter is smaller than the inner diameter of the loading port at the top of the tank truck. The feeding pipe is connected to a downward distance sensor. A camera is positioned below the top frame and facing downwards; a planar moving component is positioned on the top frame and driven to connect with the feed pipe to adjust the horizontal position of the feed pipe.

2. The feeding device for an unmanned tank truck operation system according to claim 1, characterized in that: The feeding assembly also includes a sealing unit, which is used to control the connection and isolation between the feeding pipe and the feeding pump.

3. The feeding device for an unmanned tank truck operation system according to claim 2, characterized in that: The sealing unit includes a sealing piston, a sealing shell, and a bidirectional air pump. The sealing shell is fixedly connected between the top of the feed pipe and the input end of the feed pump. The sealing piston slides vertically between the feed pipe and the sealing shell to form a sealing cavity. The circumferential outer edge of the sealing piston is sealed to the circumferential cavity wall of the sealing cavity. One end of the bidirectional air pump is fixedly connected to the top of the sealing shell.

4. The feeding device for an unmanned tank truck operation system according to claim 3, characterized in that: The sealing shell includes a buffer shell and a guide shell that are connected in sequence along the vertical direction and have decreasing inner diameters. The buffer shell is fixedly connected between the feed pipe and the feed pump. The guide shell is connected to the bidirectional air pump. The circumferential inner wall of the guide shell is sealed to the circumferential outer edge of the top of the sealing piston.

5. The feeding device for an unmanned tank truck operation system according to claim 3, characterized in that: The bottom of the feed tube is constricted downwards, and the bottom end of the inner cavity of the feed tube is adapted to the bottom of the sealing piston.

6. The feeding device for an unmanned tank truck operation system according to claim 4, characterized in that: The other end of the bidirectional air pump is fixedly connected to a filter device and a protective gas storage tank via an exhaust tee pipe. An air inlet valve and a protective valve are respectively provided between the filter device and the protective gas storage tank and the bidirectional air pump. An air injection port and a filter outlet are also provided on the protective gas storage tank and the filter device, respectively. An air injection valve and an air outlet valve are respectively connected to the air injection port and the filter outlet. The filter device is equipped with a filter element.

7. The feeding device for an unmanned tank truck operation system according to claim 6, characterized in that: The filter element is detachably installed within the filtration device.

8. The feeding device for an unmanned tank truck operation system according to claim 6, characterized in that: The sealing unit also includes a sealing cover that is downwardly and fixedly sleeved on the feed pipe or the sealing shell, and the bidirectional air pump is connected to the inner cavity of the sealing shell and the sealing cover respectively through a three-way air extraction pipe.

9. The feeding device for an unmanned tank truck operation system according to claim 8, characterized in that: The bottom of the sealing cover is provided with an elastic cushioning pad.

10. The feeding device for an unmanned tank truck operation system according to claim 8, characterized in that: Both the bidirectional air pump and the feed pump are fixed on the top frame. The bidirectional air pump is connected to the air extraction tee pipe through a first hose, and the output end of the feed pump is connected to the buffer shell through a second hose.

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