Pressure regulating device for a transport vehicle tank

Abstract

The utility model relates to a transport car tank body technical field especially relates to a pressure regulating device for transport car tank body. Including transport car main part and tank body main part, tank body main part is fixed in transport car main part top one end, the top fixed exhaust pipe of tank body main part one end, the inside installation of exhaust pipe is used for adjusting exhaust mechanism, exhaust mechanism includes displacement board, sealing plug and tension spring, the inside slidingly connected of exhaust pipe has displacement board, and the one end fixed sealing plug of displacement board center is close to tank body main part, and sealing plug and exhaust pipe slidingly connected. The utility model provides a pressure regulating device for transport car tank body cooperates through tank body main part, exhaust mechanism and blocking mechanism, can when existing liquid in tank body main part inside, prevents liquid from entering exhaust mechanism through blocking mechanism, simultaneously when the gas pressure in tank body main part inside is too big, through exhaust mechanism pressure relief, realizes the regulation to tank body main part inside pressure.

Description

Technical Field

[0001] This utility model relates to the field of transport vehicle tank technology, and in particular to a pressure regulating device for transport vehicle tanks. Background Technology

[0002] Tank trucks are widely used for transporting liquids, gases, and other materials, and their safety and reliability are paramount. During transportation, the pressure inside the tank fluctuates due to factors such as temperature changes and material evaporation. Excessive pressure can lead to tank rupture and safety accidents; insufficient pressure can cause material leakage or prevent proper unloading. Therefore, a device capable of effectively regulating the internal pressure of the tank is needed to ensure the safety and stability of the transportation process.

[0003] Patent document (CN204938002U) discloses a pressure adaptive adjustment system for a fresh milk transport vehicle and the vehicle itself. The tank is equipped with a breathing device connected to an air pipeline. A discharge valve is connected to a self-priming pump. When the discharge valve is opened, a switch opens synchronously with it. The switch connects to a power source and a solenoid valve, which in turn connects to the air pipeline, allowing compressed air to enter the breathing device. The piston rod in the air chamber pushes open the sealing cover, allowing the tank to communicate with the outside environment through the breathing device. The breathing device may include a porous breathing ring plate. The self-priming pump then initiates self-priming, discharging milk from the tank through the discharge pipe. This invention also allows for the synchronous opening and closing of the discharge valve and the breathing device, ensuring complete isolation between the inside and outside of the tank during non-discharging periods to prevent external contamination; during discharging, the inside and outside of the tank are connected, avoiding internal and external pressure differences.

[0004] When using the above technology, the following technical problems were found in the existing technology: the existing pressure regulating device is not convenient to release pressure according to the different pressure inside the tank, and it is not convenient to control the pressure release flow rate. Therefore, a pressure regulating device for transport vehicle tank is designed to provide another technical solution to the above technical problems. Utility Model Content

[0005] Therefore, it is necessary to provide a pressure regulating device for transport vehicle tanks to address the above-mentioned technical problems, which is that existing pressure regulating devices are not convenient for depressurizing according to different internal pressures of the tank, and are also not convenient for controlling the depressurization flow rate.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A pressure regulating device for a transport vehicle tank includes a transport vehicle body and a tank body. The tank body is fixed to one end of the top of the transport vehicle body. An exhaust pipe is fixed to the top of one end of the tank body. An exhaust mechanism for adjustment is installed inside the exhaust pipe. The exhaust mechanism includes a displacement plate, a sealing plug, and a tension spring. The displacement plate is slidably connected inside the exhaust pipe. A sealing plug is fixed to the center of the displacement plate near the tank body, and the sealing plug is slidably connected to the exhaust pipe. Tension springs are evenly distributed and fixed to the displacement plate near the tank body and outside the sealing plug. Air outlet grooves are evenly distributed inside the exhaust pipe and at the end of the displacement plate away from the tank body.

[0008] In a preferred embodiment of the pressure regulating device for a transport vehicle tank provided by this utility model, a positioning filter plate is threadedly connected to the outer side of the exhaust pipe away from the main body of the tank. The positioning filter plate has a through hole inside and a filter plate is provided inside the positioning filter plate.

[0009] In a preferred embodiment of the pressure regulating device for a transport vehicle tank provided by this utility model, a blocking mechanism is fixed inside the tank body near the exhaust pipe. The blocking mechanism includes a first blocking plate, a second blocking plate, a first baffle plate, and a second baffle plate. The second blocking plate is fixed inside the tank body near the exhaust pipe. The first blocking plate is fixed inside the tank body at the end of the second blocking plate away from the exhaust pipe. The first baffle plate is fixed at the end of the first blocking plate near the second blocking plate. The second baffle plate is fixed at the end of the second blocking plate near the first blocking plate. The first baffle plate and the second baffle plate are fixed alternately.

[0010] In a preferred embodiment of the pressure regulating device for a transport vehicle tank provided by this utility model, the top of the second baffle plate does not contact the top of the inside of the tank body.

[0011] In a preferred embodiment of the pressure regulating device for a transport vehicle tank provided by this utility model, a limiting component is installed inside the exhaust pipe at the end of the displacement plate away from the main body of the tank. The limiting component includes a rotating shaft and a limiting cam. The rotating shaft is rotatably connected inside the exhaust pipe at the end of the displacement plate away from the main body of the tank, and the limiting cam is fixed on the outer side of the rotating shaft.

[0012] In a preferred embodiment of the pressure regulating device for a transport vehicle tank provided by this utility model, the limiting component includes an annular disc, a compression spring, an anti-detachment plate, an anti-rotation block, a synchronizing block, a rotating column, and a pointing block. An annular groove and an anti-rotation groove are formed inside one side of the exhaust pipe, with the anti-rotation groove located on the side of the annular groove away from the limiting cam. The annular groove and the anti-rotation groove are interconnected. An anti-detachment plate is slidably connected to the inner side of the annular groove. A synchronizing block is fixed to the end of the anti-detachment plate near the rotating shaft, and the synchronizing block is slidably connected to the rotating shaft. An annular disc is slidably connected inside the annular groove and on the side of the anti-detachment plate near the limiting cam. Compression springs are evenly distributed and fixed on the side of the annular disc away from the anti-detachment plate and outside the synchronizing block. An anti-rotation block is fixed to the side of the anti-detachment plate away from the annular disc, and the anti-rotation block is slidably connected to the anti-rotation groove. A rotating column is fixed to the end of the anti-rotation block away from the anti-detachment plate, and a pointing block is fixed to the end of the rotating column away from the anti-rotation block.

[0013] It is clear without a doubt that the technical solution described above in this application can solve the technical problem that this application aims to address.

[0014] At the same time, through the above technical solutions, this utility model has at least the following beneficial effects:

[0015] This utility model provides a pressure regulating device for a transport vehicle tank. Through the cooperation of the tank body, the venting mechanism and the blocking mechanism, when there is liquid inside the tank body, the blocking mechanism prevents the liquid from entering the venting mechanism. At the same time, when the gas pressure inside the tank body is too high, the venting mechanism releases the pressure, thereby regulating the pressure inside the tank body.

[0016] By combining the first baffle plate, the second baffle plate, the first barrier plate, and the second barrier plate, the liquid can pass through the intersection of the first baffle plate and the second baffle plate, as well as the intersection of the first barrier plate and the second barrier plate, preventing the liquid from sloshing inside the tank body and crossing the second baffle plate to enter the exhaust pipe.

[0017] Through the cooperation of the exhaust pipe, air outlet groove, displacement plate, sealing plug and tension spring, when the pressure inside the tank body is too high during use, when the pressure exceeds the sealing effect between the sealing plug and the exhaust pipe and the elastic force generated by the tension spring, the sealing plug drives the displacement plate to slide inside the exhaust pipe under the action of pressure. At the same time, the displacement plate drives the tension spring to stretch, so that the air pressure passes through the air outlet groove, overcomes the obstruction of the displacement plate and is discharged through the positioning filter plate.

[0018] Through the cooperation of the rotating shaft, the limiting cam, the rotating column, and the pointing block, the limiting cam can be rotated by the rotating column driving the rotating shaft during use. The limiting cam restricts the sliding stroke of the displacement plate inside the exhaust pipe, and the rotation angle of the limiting cam can be externally indicated by the pointing block. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the tank body of this utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the exhaust pipe of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the barrier plate of this utility model;

[0024] Figure 5 This is a schematic diagram of the air outlet groove of this utility model;

[0025] Figure 6 This is a schematic diagram of the sealing plug of this utility model;

[0026] Figure 7 This is a schematic diagram of the limiting cam of this utility model.

[0027] In the diagram: 1. Main body of the transport vehicle; 2. Main body of the tank; 3. Exhaust pipe; 4. Positioning filter plate; 5. Filter plate; 6. First baffle plate; 7. Second baffle plate; 8. First barrier plate; 9. Second barrier plate; 10. Air outlet groove; 11. Displacement plate; 12. Sealing plug; 13. Tension spring; 14. Annular groove; 15. Anti-rotation groove; 16. Rotating shaft; 17. Limiting cam; 18. Annular disc; 19. Compression spring; 20. Anti-detachment plate; 21. Anti-rotation block; 22. Synchronizing block; 23. Rotating column; 24. Pointing block. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0029] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0030] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] Reference Figures 1-7 A pressure regulating device for a transport vehicle tank includes a transport vehicle body 1 and a tank body 2. The tank body 2 is fixed to one end of the top of the transport vehicle body 1, and the tank body 2 is moved by the movement of the transport vehicle body 1. An exhaust pipe 3 is fixed to the top of one end of the tank body 2, so that the gas inside the tank body 2 can be discharged to the outside through the exhaust pipe 3 to realize the flow of gas. A positioning filter plate 4 is threadedly connected to the outer side of the end of the exhaust pipe 3 away from the tank body 2. The positioning filter plate 4 has through holes, so that the gas inside the exhaust pipe 3 can be discharged through the positioning filter plate 4, and the positioning filter plate 4 can filter solid impurities. A filter plate 5 is provided inside the positioning filter plate 4, so that the gas can only be discharged from the inside of the exhaust pipe 3 through the positioning filter plate 4 by the obstruction of the filter plate 5, or only the gas in the outside air can enter the exhaust pipe 3 through the filter plate 5.

[0033] A blocking mechanism is fixed inside the tank body 2 at one end near the exhaust pipe 3. The blocking mechanism blocks the liquid inside the tank body 2, preventing the liquid from entering the exhaust pipe 3 when it shakes. The blocking mechanism includes a first blocking plate 6, a second blocking plate 7, a first baffle plate 8, and a second baffle plate 9. The second blocking plate 7 is fixed inside the tank body 2 at one end near the exhaust pipe 3. The second blocking plate 7 is L-shaped, so that the position between the second blocking plate 7 and the tank body 2 is the air inlet of the exhaust pipe 3. The top of the second blocking plate 7 does not contact the top of the inside of the tank body 2, so that the gas inside the tank body 2 can enter the exhaust pipe 3 through the top of the second blocking plate 7.

[0034] Inside the tank body 2, at the end of the second baffle plate 7 furthest from the exhaust pipe 3, a first baffle plate 6 is fixed, such that the top of the first baffle plate 6 is fixed to the top of the inside of the tank body 2, and the first baffle plate 6 and the second baffle plate 7 are staggered. Thus, through the double blocking of the first baffle plate 6 and the second baffle plate 7, only liquid passing through the bottom of the first baffle plate 6 can enter between the first baffle plate 6 and the second baffle plate 7. A first barrier plate 8 is fixed to the end of the first baffle plate 6 near the second baffle plate 7, and a second barrier plate 9 is fixed to the end of the second baffle plate 7 near the first baffle plate 6. The first barrier plate 8 and the second barrier plate 9 are staggered and fixed, with the end of the first barrier plate 8 near the second baffle plate 7 being the lowest point, and the end of the second barrier plate 9 near the first baffle plate 6 being the lowest point. Thus, the first barrier plate 8 and the second barrier plate 9 can block the position between the first baffle plate 6 and the second baffle plate 7, and the tilt of the first barrier plate 8 and the second barrier plate 9 allows the splashed liquid to slide down.

[0035] An adjustment mechanism for exhaust is installed inside the exhaust pipe 3. The exhaust mechanism includes a displacement plate 11, a sealing plug 12, and a tension spring 13. The displacement plate 11 is slidably connected inside the exhaust pipe 3. The sealing plug 12 is fixed to one end of the displacement plate 11 near the tank body 2, and the sealing plug 12 is slidably connected to the exhaust pipe 3. When the sealing plug 12 is located in the exhaust hole that connects the exhaust pipe 3 to the tank body 2, the air pressure inside the tank body 2 is too low to cause the sealing plug 12 to move and disengage inside the exhaust pipe 3. The displacement plate 11 is located near the end of the tank body 2 and is positioned at the sealing plug. Tension springs 13 are evenly distributed and fixed on the outer side of 12, so that the elastic force generated by the tension springs 13 can increase the pressure of the air pressure inside the tank body 2 to push the sealing plug 12. The exhaust pipe 3 is evenly distributed with air outlet grooves 10 at the end of the displacement plate 11 away from the tank body 2, so that the displacement plate 11 moves inside the exhaust pipe 3. When the sealing plug 12 is separated from the exhaust hole inside the exhaust pipe 3, the end of the air outlet groove 10 near the tank body 2 is located at the end of the displacement plate 11 near the tank body 2, so that the gas inside the tank body 2 can be discharged from the exhaust pipe 3 through the air outlet groove 10.

[0036] In this embodiment, the pressure relief speed is adjusted by the length of the vent groove 10 located at the end of the displacement plate 11 near the tank body 2. In other embodiments, multiple vent grooves 10 can be progressively opened inside the exhaust pipe 3, and the positions of multiple vent grooves 10 away from the tank body 2 can be increased sequentially, so that the pressure relief speed can be adjusted according to the pressure.

[0037] A limiting component is installed inside the exhaust pipe 3 at the end of the displacement plate 11 away from the main body 2 of the tank. The limiting component includes a rotating shaft 16, a limiting cam 17, an annular disc 18, a compression spring 19, an anti-detachment plate 20, an anti-rotation block 21, a synchronizing block 22, a rotating column 23, and a pointing block 24. The rotating shaft 16 is rotatably connected inside the exhaust pipe 3 at the end of the displacement plate 11 away from the main body 2 of the tank. The limiting cam 17 is fixed on the outside of the rotating shaft 16, so that the rotating shaft 16 drives the rotation of the limiting cam 17. The limiting cam 17 limits the stroke of the displacement plate 11 away from the main body 2 inside the exhaust pipe 3. An annular groove 14 and an anti-rotation groove 15 are opened inside one side of the exhaust pipe 3. The anti-rotation groove 15 is located on the side of the annular groove 14 away from the limiting cam 17. The annular groove 14 and the anti-rotation groove 15 are connected, so that one side of the rotating shaft 16 passes through the exhaust pipe 3 and enters the inside of the annular groove 14, thereby allowing the rotating shaft 16 to rotate stably inside the tension spring 13.

[0038] An anti-detachment plate 20 is slidably connected to the inner side of the annular groove 14, so that the anti-detachment plate 20 can rotate and slide inside the annular groove 14. A synchronizing block 22 is fixed to one end of the anti-detachment plate 20 near the rotating shaft 16. The synchronizing block 22 is slidably connected to the rotating shaft 16, so that the shape of the synchronizing block 22 is rectangular, irregular, or not cylindrical, so that the rotation of the anti-detachment plate 20 can drive the rotating shaft 16 to rotate synchronously through the synchronizing block 22. An annular disk 18 is slidably connected inside the annular groove 14 and on the side of the anti-detachment plate 20 near the limiting cam 17. The annular disk 18 is located outside the synchronizing block 22. Compression springs 19 are evenly distributed and fixed on the side of the annular disk 18 away from the anti-detachment plate 20 and on the outside of the synchronizing block 22, so that the anti-detachment plate 20 moves in the direction of the limiting cam 17 inside the annular groove 14, causing the annular disk 18 to drive the compression springs 19 to compress.

[0039] An anti-rotation block 21 is fixed to the side of the anti-detachment plate 20 away from the annular disc 18. The anti-rotation block 21 is slidably connected to the anti-rotation groove 15, so that when the anti-rotation block 21 is inside the anti-rotation groove 15, the anti-detachment plate 20 cannot rotate. A rotating column 23 is fixed to the end of the anti-rotation block 21 away from the anti-detachment plate 20, so that an external hex wrench can enter the interior of the rotating column 23 and drive the rotating column 23 to rotate. At the same time, the rotating column 23 can be moved by external force, so that the rotating column 23 drives the anti-rotation block 21 from the interior of the anti-rotation groove 15 into the interior of the annular groove 14. A pointing block 24 is fixed to the end of the rotating column 23 away from the anti-rotation block 21, so that the pointing block 24 is located outside the exhaust pipe 3, so that the rotation angle of the limiting cam 17 can be viewed from the outside through the rotation angle of the pointing block 24, and the travel limit distance of the displacement plate 11 can be determined.

[0040] In this embodiment, both the anti-rotation block 21 and the anti-rotation groove 15 are polygonal, specifically decagonal, so that the anti-rotation block 21 can re-enter the interior of the anti-rotation groove 15 after rotating by an angle, thereby limiting the displacement plate 11 by rotating the limiting cam 17 by different angles. In other embodiments, modifications can be made as needed.

[0041] The operation of the pressure regulating device for a transport vehicle tank provided by this utility model is as follows: When a large amount of liquid is stored inside the tank body 2, and a large amount of gas is generated inside the tank body 2 due to shaking or input, the gas is allowed to pass between the first baffle plate 6 and the second baffle plate 7, and after passing through the intersection of the first baffle plate 8 and the second baffle plate 9, it enters the interior of the exhaust pipe 3. When the pressure of the gas is greater than the elastic force generated by the sealing plug 12 inside the exhaust pipe 3 and the exhaust pipe 3, the sealing plug 12 drives the displacement plate 11 to slide inside the exhaust pipe 3, and the exhaust pipe 3 drives the tension spring 13 to stretch. When the sealing plug 12 is removed from the exhaust hole on the exhaust pipe 3, the gas is allowed to pass through the gas outlet groove 10, pass over the displacement plate 11, be filtered by the filter plate 5, and be discharged by the positioning filter plate 4.

[0042] Meanwhile, during transportation, according to the speed of air pressure emission, the external hexagonal wrench can be used to enter the interior of the rotating column 23 in advance, driving the anti-rotation block 21 from the interior of the anti-rotation groove 15 into the interior of the annular groove 14. At this time, the pointing block 24 is not in contact with the exhaust pipe 3. At this time, due to the rotation of the rotating column 23, the rotation of the rotating column 23 drives the anti-rotation block 21, the anti-detachment plate 20 and the synchronizing block 22 to rotate. The rotation of the synchronizing block 22 drives the rotating shaft 16 to drive the limiting cam 17 to rotate. The rotation angle of the limiting cam 17 can be displayed by the external pointing block 24. The sliding stroke of the displacement plate 11 inside the exhaust pipe 3 is limited by the protruding position of the limiting cam 17.

[0043] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A pressure regulating device for a transport vehicle tank, comprising a transport vehicle body (1) and a tank body (2), wherein the tank body (2) is fixed to one end of the top of the transport vehicle body (1), characterized in that, An exhaust pipe (3) is fixed to the top of one end of the tank body (2). An exhaust mechanism for adjustment is installed inside the exhaust pipe (3). The exhaust mechanism includes a displacement plate (11), a sealing plug (12), and a tension spring (13). The displacement plate (11) is slidably connected inside the exhaust pipe (3). A sealing plug (12) is fixed to the end of the displacement plate (11) near the tank body (2), and the sealing plug (12) is slidably connected to the exhaust pipe (3). Tension springs (13) are evenly distributed and fixed to the end of the displacement plate (11) near the tank body (2) and outside the sealing plug (12). Air outlet grooves (10) are evenly distributed inside the exhaust pipe (3) and at the end of the displacement plate (11) away from the tank body (2).

2. The pressure regulating device for a transport vehicle tank according to claim 1, characterized in that The exhaust pipe (3) is threadedly connected to a positioning filter plate (4) at the end away from the tank body (2). The positioning filter plate (4) has a through hole inside and a filter plate (5) is installed inside the positioning filter plate (4).

3. The pressure regulating device for a transport vehicle tank of claim 1, wherein A blocking mechanism is fixed inside the main body (2) near the exhaust pipe (3). The blocking mechanism includes a first blocking plate (6), a second blocking plate (7), a first baffle plate (8), and a second baffle plate (9). The second blocking plate (7) is fixed inside the main body (2) near the exhaust pipe (3). The first blocking plate (6) is fixed inside the main body (2) at the end of the second blocking plate (7) away from the exhaust pipe (3). The first baffle plate (8) is fixed at the end of the first blocking plate (6) near the second blocking plate (7). The second baffle plate (9) is fixed at the end of the second blocking plate (7) near the first blocking plate (6). The first baffle plate (8) and the second baffle plate (9) are fixed alternately.

4. The pressure regulating device for a transport vehicle tank of claim 3, wherein The top of the second baffle (7) does not contact the top of the inside of the tank body (2).

5. The pressure regulating device for a transport vehicle tank of claim 1, wherein, A limiting component is installed inside the exhaust pipe (3) at the end of the displacement plate (11) away from the tank body (2). The limiting component includes a rotating shaft (16) and a limiting cam (17). The rotating shaft (16) is rotatably connected inside the exhaust pipe (3) at the end of the displacement plate (11) away from the tank body (2). The limiting cam (17) is fixed on the outside of the rotating shaft (16).

6. A pressure regulating device for a transport vehicle tank as defined in claim 5, wherein The limiting assembly includes an annular disc (18), a compression spring (19), an anti-detachment plate (20), an anti-rotation block (21), a synchronizing block (22), a rotating column (23), and a pointing block (24). An annular groove (14) and an anti-rotation groove (15) are formed inside one side of the exhaust pipe (3), with the anti-rotation groove (15) located on the side of the annular groove (14) away from the limiting cam (17). The annular groove (14) and the anti-rotation groove (15) are interconnected. An anti-detachment plate (20) is slidably connected to the inner side of the annular groove (14). A synchronizing block (22) is fixed to one end of the anti-detachment plate (20) near the rotating shaft (16). The synchronizing block (22) is connected to the rotating shaft (16). 16) Sliding connection: An annular disc (18) is slidably connected inside the annular groove (14) and on the side of the anti-detachment plate (20) near the limiting cam (17). Compression springs (19) are evenly distributed and fixed on the side of the annular disc (18) away from the anti-detachment plate (20) and on the outside of the synchronizing block (22). An anti-rotation block (21) is fixed on the side of the anti-detachment plate (20) away from the annular disc (18). The anti-rotation block (21) is slidably connected to the anti-rotation groove (15). A rotating column (23) is fixed on the end of the anti-rotation block (21) away from the anti-detachment plate (20). A pointing block (24) is fixed on the end of the rotating column (23) away from the anti-rotation block (21).

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