Positioning structure of detachable liquid tank and vehicle frame and transport liquid tank

Abstract

The application discloses a detachable liquid tank and frame positioning structure and a transport liquid tank, and belongs to the technical field of liquid tank transport equipment. The detachable liquid tank and frame positioning structure comprises a holding beam and a positioning support, the width of the positioning support is equal to the width of an upper beam body of a frame, four positioning connecting rods are fixedly connected between each positioning support and the upper beam body of the frame, the four positioning connecting rods are evenly distributed to the left and right sides of the upper beam body of the frame and tightly clamp the positioning support and the upper beam body of the frame, and two positioning connecting rods successively located on the left and right sides are symmetrically distributed about the positioning support and are eight-shaped and obliquely arranged. The four positioning connecting rods which are symmetrically and eight-shaped and obliquely arranged form a clamping and fixing structure, which is different from the traditional vertical bolt fixing mode. The eight-shaped and obliquely arranged structure has natural error compensation and locking capacity, and solves the technical problems that the liquid tank is difficult to disassemble and assemble and the installation error cannot be compensated in the prior art, so that the liquid tank can be quickly installed with low-precision positioning and can be stably positioned in all directions.

Description

Technical Field

[0001] This invention relates to the field of liquid tank transportation equipment technology, specifically to an easily detachable liquid tank and vehicle frame positioning structure and a transport liquid tank. Background Technology

[0002] For both short-distance and long-distance transport of media such as gasoline, natural gas, and water, vehicle-mounted liquid tanks are commonly used as the core carrier. The assembly stability of the liquid tank and the transport vehicle frame, the ease of assembly and disassembly, and the stability of the liquid flow inside the tank directly determine the safety of liquid transportation, equipment maintenance efficiency, and transportation costs.

[0003] Currently, there are two main types of assembly methods for vehicle-mounted liquid tanks and vehicle frames: integral welding and bolt-removable. For ease of maintenance, bolt-removable liquid tanks are the most common type on the market. However, each time the liquid tank is disassembled and reinstalled onto the frame, the large number of bolt holes makes it difficult to ensure that all bolt holes and bolts align accurately. This results in easy disassembly but difficult installation.

[0004] On the other hand, existing anti-surge and anti-wave structures for vehicle-mounted liquid tanks generally have insufficient protective effects. Especially for liquid tanks that are large in volume and long in length, during liquid transportation, when the vehicle accelerates, decelerates, turns, or experiences bumps, the liquid inside the tank is prone to violent shaking, forming liquid surges. This not only generates huge liquid impact forces, causing the vehicle's center of gravity to shift and driving stability to decrease, making it prone to safety accidents such as rollovers and deviations, but also causes fatigue damage to the tank body and cracking of welds due to long-term liquid impact, significantly shortening the service life of the liquid tank. Summary of the Invention

[0005] The first technical problem to be solved by the present invention is to provide an easy-to-disassemble liquid tank and vehicle frame positioning structure, which solves the technical problems of difficulty in disassembling and aligning liquid tanks and the inability to compensate for installation errors in the prior art, so as to achieve rapid installation of liquid tanks with low-precision alignment and all-round stable positioning.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A disassembly-friendly liquid tank and vehicle frame positioning structure includes multiple retaining beams located between the liquid tank and the upper beam of the vehicle frame and welded to fit the bottom contour of the liquid tank, and positioning supports fixed at the left and right ends of the retaining beams and in contact with the upper beam of the vehicle frame. The core improvement is that the left and right width of the positioning support is equal to the left and right width of the upper beam of the vehicle frame. Each positioning support is fixedly connected to the upper beam of the vehicle frame by four positioning rods. The four positioning rods are evenly distributed on the left and right sides of the upper beam of the vehicle frame and firmly clamp the positioning support and the upper beam of the vehicle frame. The two positioning rods located on the left and right sides are symmetrically distributed about the location of the positioning support and are inclined in a figure-eight shape.

[0007] By adopting the above solution, a clamping and fixing structure is formed by four positioning rods arranged in a symmetrical, figure-eight-shaped, inclined configuration. Unlike traditional vertical bolt fixing methods, this figure-eight-shaped inclined structure has inherent error compensation and locking capabilities. The liquid tank placement does not require high-precision alignment; the installation position can be adaptively fine-tuned by adjusting the inclination angle of the rods. This effectively compensates for hole position deviations and placement position deviations after disassembly and reassembly, completely solving the problem of difficult alignment with traditional multi-bolt holes. Simultaneously, the symmetrical figure-eight clamping structure can withstand both horizontal and vertical impact forces, comprehensively limiting the offset and sway of the positioning support, significantly improving the assembly stability of the liquid tank and the vehicle frame. Furthermore, the disassembly and assembly process does not require precise hole calibration, significantly reducing installation difficulty and improving maintenance efficiency.

[0008] As a preferred embodiment of an easily detachable liquid tank and vehicle frame positioning structure, upper inner positioning holes and upper outer positioning holes are sequentially formed on the side of the positioning support and the top side of the positioning connecting rod. An upper screw and an upper nut fitted onto the upper screw pass through both the upper inner and upper outer positioning holes. Lower inner positioning holes and lower outer slotted holes are sequentially formed on the side of the upper beam of the vehicle frame and the bottom side of the positioning connecting rod. A lower screw and a lower nut fitted onto the lower screw pass through both the upper inner and lower outer slotted holes. The positioning support and connecting rod are connected by a top screw assembly, and the connecting rod and vehicle frame beam are connected by a bottom screw assembly, forming a double-layered, split-type locking positioning structure. Compared to traditional integrated bolt fixing, the layered connection structure offers greater flexibility in assembly and disassembly. The bottom uses a lower outer slotted hole instead of a traditional circular positioning hole. The slotted hole provides lateral and longitudinal positional adjustment margins, allowing for large-scale installation error compensation in conjunction with the tilting and swinging of the positioning connecting rod. This further adapts to positional deviations of the liquid tank and slight deformation deviations of the hole positions, greatly reducing the difficulty of assembly alignment. The split screw locking structure has a clear division of labor, with the upper part being positioned and the lower part being fine-tuned and fixed. It has strong structural stability and is not easy to loosen after locking, making it suitable for bumpy and impact conditions during vehicle operation.

[0009] As a preferred embodiment of an easily detachable liquid tank and vehicle frame positioning structure, the upper and lower screws can firmly restrict the movement of the positioning support in the front-back and up-down directions. Through the insertion and limiting of the upper and lower screws, the positioning support is rigidly locked in both the front-back and up-down dimensions, preventing the liquid tank from moving back and forth or jumping up and down during vehicle operation. The upper and lower nuts can firmly restrict the movement of the positioning support in the left-right direction. Through the locking and squeezing of the upper and lower nuts, the left-right direction is limited and fixed, covering the displacement restriction in three-dimensional space in all directions, forming a six-way full-limiting and fixing system.

[0010] As a preferred embodiment of an easily detachable liquid tank and vehicle frame positioning structure, each upper inner positioning hole is used in conjunction with at least three lower inner positioning holes, and each lower inner positioning hole is not on the vertical line where the upper inner positioning hole is located. Multiple sets of staggered lower inner positioning holes adapt to and cooperate with a single upper inner positioning hole, forming a multi-position adjustable positioning structure. The corresponding positioning hole can be selected for assembly according to different installation deviations and equipment wear levels, significantly expanding the error compensation range. The staggered, non-vertical arrangement of the structure creates a figure-eight inclined structure. First, the installation position is adaptively fine-tuned by the tilt angle of the connecting rod, effectively offsetting hole position deviations and placement position deviations after disassembly and repositioning. Then, rigid locking of the positioning support is achieved in both the front-to-back and top-to-bottom dimensions.

[0011] As a preferred embodiment of an easily detachable liquid tank and vehicle frame positioning structure, when the positioning link rotates around the upper inner or upper outer positioning hole, the lower outer slot overlaps with all the lower inner positioning holes, wherein the width of the lower outer slot is equal to the diameter of the lower screw. The positioning link can rotate and swing around the top positioning hole, and with the covering structure of the lower outer slot, it ensures that the link can be precisely aligned with each set of lower inner positioning holes at any adjustment angle, achieving stepless fine-tuning positioning and higher error compensation accuracy. At the same time, the width of the slot is equal to the diameter of the screw. After fine-tuning and alignment, the screw and the slot have a gapless fit, eliminating the shaking and offset problems caused by assembly gaps. While retaining the advantages of high fault tolerance installation, it ensures the rigid fixation effect after assembly, taking into account both installation convenience and fixation stability.

[0012] As a preferred embodiment of an easily detachable liquid tank and vehicle frame positioning structure, the positioning link includes two sets of parallel link bodies and a support body located on the two sets of link bodies and connecting and fixing the two sets of link bodies. By adopting an integrated frame structure of double link bodies and support body, its overall structural strength, bending resistance and impact resistance are greatly improved, and it can withstand greater liquid impact and vehicle driving impact force, and is not prone to deformation or breakage.

[0013] The second technical problem to be solved by this invention is to provide a transport liquid tank with an easily detachable liquid tank and vehicle frame positioning structure. In addition to solving the technical problems of difficulty in disassembling and aligning the liquid tank and the inability to compensate for installation errors in the prior art, it can also solve the technical problems of poor anti-surge effect and insufficient transport stability of large liquid tanks in the prior art. It can achieve rapid installation of the liquid tank with low-precision alignment and all-round stable positioning, while significantly improving the anti-surge effect inside the liquid tank, ensuring the safety of liquid transportation and reducing equipment operation and maintenance costs.

[0014] To achieve the above objectives, the present invention provides the following technical solution: A transport liquid tank includes a tank body. The bottom of the tank body is detachably fixed to the upper beam of the vehicle frame via the aforementioned easily detachable tank and frame positioning structure. The tank body includes a horizontally arranged tank shell, multiple sets of vertically fixed inside the tank shell, and an inspection cover installed on the top of the tank shell that can be opened or closed. The core improvement is that a floating baffle is also installed inside the tank shell, horizontally positioned between two adjacent sets of vertical baffles and capable of rising and falling synchronously with the liquid level. A lower opening, a middle opening, and an upper opening are sequentially provided on the vertical baffle from bottom to top. A lower support ring is fixed at the edge of the lower opening, extending beyond the vertical baffle and preventing the floating baffle from sinking to the bottom.

[0015] By adopting the above solution, the liquid tank achieves rapid assembly based on the aforementioned highly fault-tolerant and easily disassembled positioning structure, significantly reducing the overall difficulty of disassembly and maintenance. Simultaneously, a floating baffle is added to the traditional vertical baffle, filling the gaps between adjacent vertical baffles and forming a three-dimensional baffle system combining vertical and horizontal elements, completely solving the problem of severe localized liquid sloshing in large, long liquid tanks. The floating baffle can rise and fall synchronously with the liquid level, maintaining its position against the liquid surface regardless of whether the tank is fully loaded, half-loaded, or has a small amount of liquid remaining, effectively suppressing liquid sloshing and adapting to all transportation needs. Multiple openings on the vertical baffle allow for slow liquid flow, preventing excessive localized pressure caused by complete liquid blockage. The lower support ring effectively supports the floating baffle, preventing it from sinking and jamming, ensuring the floating baffle remains in an effective working position and continuously guaranteeing its baffle performance.

[0016] As a preferred embodiment of a liquid transport tank, the floating baffle includes a central baffle and movable baffles hinged and fixed to both sides of the central baffle. Both the central and movable baffles have several perforations. When the two movable baffles and the central baffle are on the same horizontal plane, the two movable baffles can only rotate upwards and cannot rotate downwards. The floating baffle adopts a split structure with a fixed central section and hinged movable sides. Combined with a unidirectional rotation limit design, when the liquid surges upwards, the floating baffle remains horizontal, completely blocking the downward surge and precisely suppressing the main sloshing trend of the liquid. The perforations on the baffle allow for small, uniform liquid flow, buffering the impact force of the liquid and avoiding turbulence and surges caused by concentrated liquid impact, further weakening the sloshing amplitude. The split hinged structure can be folded and disassembled when personnel enter the tank for maintenance or cleaning, facilitating internal maintenance or cleaning.

[0017] As a preferred embodiment of the transport liquid tank, the movable baffle has multiple guide protrusions on its side, and guide grooves that cooperate with the guide protrusions are formed on the side of the vertical baffle. The guide protrusions can only move up and down along the guide grooves. Through the sliding cooperation between the guide protrusions and the guide grooves, precise guidance and limiting are provided for the lifting and lowering movement of the floating baffle, ensuring that the floating baffle always lifts and lowers vertically and stably, eliminating the problems of deviation and tilting during the lifting and lowering process, and ensuring the dynamic working stability of the floating baffle.

[0018] In a preferred embodiment of the transport liquid tank, the main body of the tank also includes guardrails installed on the top of the tank shell and distributed on the left and right sides of the inspection cover. These guardrails are movable and can be erected vertically or lowered horizontally. The movable, erectable guardrails provide safety protection and support when workers open the inspection cover to perform tank inspection, maintenance, and cleaning operations, preventing personnel from falling and improving the safety of working at heights. When in transport mode or when no work is required, the guardrails can be lowered horizontally to reduce the overall height of the tank and avoid exceeding height and limit limits.

[0019] The beneficial effects of this invention are: 1. High assembly tolerance, convenient disassembly and assembly, and significantly reduced maintenance costs: This invention abandons the traditional assembly mode of precise alignment with multiple bolts and adopts an eight-shaped inclined symmetrical positioning linkage structure, combined with a micro-adjustment structure of bottom strip holes and multiple sets of misaligned positioning holes. It has a super large installation error compensation capability and self-locking capability. When disassembling and resetting the liquid tank, there is no need for high-precision alignment. It can adaptively offset assembly deviations such as hole wear and position offset, completely solving the problem of "difficult to install and easy to misalign" of traditional structures. In particular, the disassembly and assembly process is simple and does not require repeated calibration and fine adjustment, which greatly shortens the assembly time and reduces labor maintenance costs. 2. Six-way full-limit fixation, extremely strong assembly stability, and high transportation safety: Through the layered limit design of upper and lower screws and nuts, the positioning support is locked in six dimensions in front, back, up, down, left and right. Combined with the bidirectional clamping structure of the figure-eight connecting rod, the force is evenly distributed and the impact resistance is strong. It can effectively resist the impact forces generated by vehicle acceleration, deceleration, bumps, and turns in all directions, eliminate the problems of liquid tank movement, deviation, and shaking during the operation of the liquid tank, avoid transportation safety accidents caused by equipment wear and displacement, and greatly improve the driving stability and safety of the vehicle-mounted liquid tank. 3. Three-dimensional all-round anti-surge structure, completely solving the problem of liquid sloshing in large liquid tanks: Breaking through the technical limitations of traditional single vertical anti-surge plates, a three-dimensional anti-surge system is constructed with vertical fixed anti-surge plates + floating lifting anti-surge plates, filling the anti-surge gap area between adjacent vertical anti-surge plates; the floating anti-surge plates can adapt to the working conditions of the entire liquid level, and with the one-way flipping movable plate and leakage hole buffer structure, it effectively weakens the vertical, horizontal and local all-round sloshing of liquid, greatly reduces the impact force of liquid surge, avoids tank fatigue damage and weld cracking, extends the service life of liquid tank, and at the same time eliminates the safety hazards such as vehicle center of gravity shift and rollover caused by liquid sloshing; 4. High structural strength, strong adaptability and practicality: The positioning linkage adopts a double linkage integrated reinforcement structure, which has excellent bending and impact resistance, is not easily deformed or damaged, and has a low equipment failure rate; the floating wave deflector is equipped with a precise guiding and anti-sinking structure, which ensures stable operation without jamming or deviation, and has strong reliability in long-term use; the top movable guardrail can flexibly switch states, taking into account both the safety of maintenance operations and the adaptability to road traffic. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A 3D structural diagram of the transport liquid tank and chassis after installation; Figure 2 A three-dimensional structural diagram of the easily disassembled liquid tank and vehicle frame positioning structure; Figure 3 for Figure 2 A magnified view of a section at point A in the middle; Figure 4 Front view of the easily detachable liquid tank and chassis positioning structure; Figure 5 for Figure 4 A magnified view of a section at point B in the middle; Figure 6 Left view of the easily detachable liquid tank and chassis positioning structure; Figure 7 for Figure 6 Exploded view; Figure 8 for Figure 1 Partial three-dimensional structural diagram; Figure 9 for Figure 8 Internal three-dimensional structure diagram; Figure 10 This is a three-dimensional structural diagram of a floating breakwater when it is deployed. Figure 11 This is a three-dimensional structural diagram of a floating wave deflector when folded.

[0022] Markings in the diagram: 1. Main body of the liquid tank; 2. Upper beam of the chassis; 3. Bracket; 4. Positioning support; 5. Positioning connecting rod; 51. Connecting rod body; 52. Support body; 6. Upper inner positioning hole; 7. Upper outer positioning hole; 8. Upper screw; 9. Upper nut; 10. Lower inner positioning hole; 11. Lower outer strip hole; 12. Lower screw; 13. Lower nut; 14. Outer shell of the liquid tank; 15. Vertical baffle; 16. Inspection cover; 17. Floating baffle; 171. Middle baffle; 172. Movable baffle; 173. Leakage hole; 174. Guide protrusion; 175. Guide groove; 18. Lower opening; 19. Middle opening; 20. Upper opening; 21. Lower support ring; 22. Guardrail. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] like Figures 1 to 3 As shown, an easy-to-disassemble liquid tank and vehicle frame positioning structure is provided, including multiple retaining beams 3 located between the liquid tank and the upper beam 2 of the vehicle frame and welded to fit the bottom contour of the liquid tank, and positioning supports 4 fixed at the left and right ends of the retaining beams 3 and in contact with the upper beam 2 of the vehicle frame. The left and right width of the positioning support 4 is equal to the left and right width of the upper beam 2 of the vehicle frame. Each positioning support 4 is fixedly connected to the upper beam 2 of the vehicle frame by four positioning connecting rods 5. The four positioning connecting rods 5 are evenly distributed on the left and right sides of the upper beam 2 of the vehicle frame and firmly clamp the positioning support 4 and the upper beam 2 of the vehicle frame. The two positioning connecting rods 5 located on the left and right sides are symmetrically distributed about the location of the positioning support 4 and are inclined in a figure-eight shape. By employing a clamping and fixing structure formed by four symmetrical, figure-eight-shaped inclined positioning rods 5, unlike the traditional vertical bolt fixing method, the figure-eight-shaped inclined structure has natural error compensation and locking capabilities. The liquid tank placement does not require high-precision alignment; the installation position can be adaptively fine-tuned by adjusting the inclination angle of the rods. This effectively compensates for hole position deviations and placement position deviations after disassembly and reassembly, completely solving the problem of difficult alignment with traditional multi-bolt holes. Simultaneously, the figure-eight-shaped symmetrical clamping structure can withstand both horizontal and vertical impact forces, comprehensively limiting the offset and sway of the positioning support 4, significantly improving the assembly stability of the liquid tank and the vehicle frame. Furthermore, the disassembly and assembly process does not require precise hole calibration, significantly reducing installation difficulty and improving maintenance efficiency.

[0025] like Figures 2 to 7 As shown, an upper inner positioning hole 6 and an upper outer positioning hole 7 are sequentially provided on the side of the positioning support 4 and the top side of the positioning connecting rod 5. An upper screw 8 and an upper nut 9, which are fitted onto the upper screw 8, pass through both the upper inner positioning hole 6 and the upper outer positioning hole 7. A lower inner positioning hole 10 and a lower outer strip hole 11 are sequentially provided on the side of the upper beam 2 of the frame and the bottom side of the positioning connecting rod 5. A lower screw 12 and a lower nut 13, which are fitted onto the lower screw 12, pass through both the upper inner positioning hole 6 and the lower outer strip hole 11. The positioning support 4 and the connecting rod are connected by the top screw assembly, and the connecting rod and the frame beam are connected by the bottom screw assembly, forming a double-layer split locking and positioning structure. Compared with the traditional one-piece bolt fixing, the layered connection structure is more flexible in disassembly and assembly. The bottom adopts a lower outer strip hole 11 instead of the traditional circular positioning hole. The strip hole has lateral and longitudinal position adjustment margins, which can be used in conjunction with the tilting and swinging of the positioning linkage 5 to achieve a wide range of installation error compensation. It is further adapted to the positional deviation of the liquid tank and the slight deformation deviation of the hole position, greatly reducing the difficulty of assembly alignment. The upper and lower split screw locking structure has a clear division of labor, realizing upper positioning and lower fine adjustment and fixation respectively. The structure has strong stability and is not easy to loosen after locking, which is suitable for the bumpy and impact conditions during vehicle operation.

[0026] Continue as Figures 2 to 7 As shown, the upper screw 8 and the lower screw 12 can firmly restrict the movement of the positioning support 4 in the front-back and up-down directions. Through the limiting action of the upper and lower screws 12, the positioning support 4 is rigidly locked in both the front-back and up-down dimensions, preventing the liquid tank from moving back and forth or jumping up and down during vehicle operation. The upper nut 9 and the lower nut 13 can firmly restrict the movement of the positioning support 4 in the left-right direction. Through the locking and squeezing action of the upper and lower nuts 13, the left-right direction is limited and fixed, covering the displacement limitation in three-dimensional space in all directions, forming a six-way full-limiting and fixing system.

[0027] Continue as Figures 2 to 7 As shown, each upper inner positioning hole 6 is paired with at least three lower inner positioning holes 10, and each lower inner positioning hole 10 is not on the vertical line where the upper inner positioning hole 6 is located. Multiple sets of staggered lower inner positioning holes 10 are adapted to and cooperate with a single upper inner positioning hole 6, forming a multi-position adjustable positioning structure. The corresponding positioning hole assembly can be selected according to different installation deviations and equipment wear levels, significantly expanding the error compensation range. The staggered, non-vertical arrangement of the structure forms a figure-eight inclined structure. First, the installation position is adaptively fine-tuned by the tilt angle of the connecting rod, effectively offsetting the hole position deviation and placement position deviation after disassembly and resetting. Then, rigid locking of the positioning support 4 is achieved in both the front-to-back and upper-lower dimensions.

[0028] Continue as Figures 2 to 7When the positioning link 5 rotates around the upper inner positioning hole 6 or the upper outer positioning hole 7, the lower outer strip hole 11 overlaps with all the lower inner positioning holes 10, where the width of the lower outer strip hole 11 is equal to the diameter of the lower screw 12. The positioning link 5 can rotate and swing around the top positioning hole, and with the covering structure of the lower outer strip hole 11, it ensures that the link can be precisely aligned with each set of lower inner positioning holes 10 at any adjustment angle, achieving stepless fine-tuning positioning and higher error compensation accuracy. At the same time, the width of the strip hole is equal to the diameter of the screw. After fine-tuning and alignment, the screw and the strip hole have a gapless fit, eliminating the shaking and offset problems caused by assembly gaps. While retaining the advantages of high fault tolerance installation, it ensures the rigid fixation effect after assembly, taking into account both installation convenience and fixation stability.

[0029] Continue as Figures 2 to 7 The positioning link 5 shown includes two sets of parallel link bodies 51 and a support body 52 located on the two sets of link bodies 51 and connecting and fixing the two sets of link bodies 51. By adopting an integrated frame structure of double link bodies 51 and support body 52, its overall structural strength, bending resistance and impact resistance are greatly improved. It can withstand greater liquid impact and vehicle driving impact force and is not easy to deform or break.

[0030] like Figures 1 to 7 As shown, the disassembly and assembly principle of this easily detachable liquid tank and vehicle frame positioning structure is as follows: After the liquid tank body 1 is lifted and placed on top of the upper beam 2 of the vehicle frame, the four positioning links 5 are assembled to compensate for errors by utilizing their symmetrical V-shaped inclined structure. Based on the positional deviation and hole offset caused by the placement of the liquid tank, the positioning links 5 are rotated and finely adjusted around the upper inner positioning hole 6 and the upper outer positioning hole 7 to ensure that the lower outer strip hole 11 at the bottom of the link precisely overlaps with the corresponding lower inner positioning hole 10. Since the deviation of each set of positioning supports 4 is different, the lower outer strip hole 11 can be precisely overlapped with any lower inner positioning hole 10. The multiple sets of staggered lower inner positioning holes 10 can adapt to different deviation angles and deviation distances, achieving a wide range of error compensation. It is only necessary to ensure that the positioning links 5 are tilted as a whole, and then the upper nut 9 and the lower nut 13 are locked. Among them, the upper screw 8 and the lower screw 12 can firmly restrict the movement of the positioning support 4 in the front-back and up-down directions. Through the limit setting of the upper and lower screws 12, the positioning support 4 is rigidly locked in the front-back and up-down dimensions, eliminating the problem of the liquid tank moving back and forth and jumping up and down during vehicle operation. Among them, the upper nut 9 and the lower nut 13 can firmly restrict the movement of the positioning support 4 in the left-right direction. Through the locking and squeezing of the upper and lower nuts 13, the left-right direction is limited and fixed, covering the displacement restriction in three-dimensional space in all directions, forming a six-way full-limit fixation system.

[0031] During disassembly, simply unscrew the upper nut 9 and the lower nut 13 in sequence, and pull out the upper and lower screws 12 to loosen the positioning linkage 5. The liquid tank can then be lifted off the frame as a whole without the need for individual alignment and calibration. The disassembly and assembly process is simple and efficient, perfectly suited for high-frequency maintenance operations.

[0032] like Figure 1 , Figures 8 to 9 As shown, a transport liquid tank is provided, including a liquid tank body 1. The bottom of the liquid tank body 1 is detachably fixed to the upper beam of the vehicle frame 2 through the aforementioned easy-to-disassemble liquid tank and vehicle frame positioning structure. The liquid tank body 1 includes a horizontally arranged liquid tank shell 14, multiple sets of vertical baffles 15 vertically fixed inside the liquid tank shell 14, and an inspection cover 16 installed on the top of the liquid tank shell 14 that can be opened or closed. Its core improvement is that a floating baffle 17 is also installed inside the liquid tank shell 14, horizontally located between two adjacent sets of vertical baffles 15 and capable of rising and falling synchronously with the liquid level. A lower opening 18, a middle opening 19, and an upper opening 20 are sequentially opened on the vertical baffles 15 from bottom to top. A lower support ring 21 is fixed at the edge of the lower opening 18, extending beyond the vertical baffles 15 and capable of preventing the floating baffles 17 from sinking to the bottom. Based on the aforementioned highly fault-tolerant and easily disassembled positioning structure, this liquid tank enables rapid assembly, significantly reducing the overall difficulty of disassembly and maintenance. Simultaneously, a floating baffle 17 is added to the traditional vertical baffle 15, filling the gaps in wave protection between adjacent vertical baffles 15, forming a three-dimensional wave protection system combining vertical and horizontal elements. This completely solves the problem of severe localized liquid sloshing in large, long liquid tanks. The floating baffle 17 can rise and fall synchronously with the liquid level, maintaining its position against the liquid surface regardless of whether the tank is fully loaded, half-loaded, or has a small amount of liquid remaining, effectively suppressing liquid sloshing and adapting to all transportation needs. The multiple openings on the vertical baffle 15 allow for slow liquid flow, preventing excessive localized pressure caused by complete liquid blockage. The lower support ring 21 effectively supports the floating baffle 17, preventing it from sinking and jamming, ensuring that the floating baffle 17 is always in an effective working position and continuously guaranteeing wave protection effectiveness.

[0033] like Figures 10 to 11As shown, the floating baffle 17 includes a central baffle 171 and movable baffles 172 respectively hinged and fixed to both sides of the central baffle 171. Both the central baffle 171 and the movable baffles 172 have several perforations 173. When the two sets of movable baffles 172 and the central baffle 171 are on the same horizontal plane, the two sets of movable baffles 172 can only be rotated upwards and cannot be rotated downwards. The floating baffle 17 adopts a split structure with a fixed central section and hinged movable sides. Combined with a unidirectional flip-limiting design, when the liquid surges upwards, the floating baffle 17 is in a horizontal state, completely blocking the downward surge of the liquid and precisely suppressing the main sloshing trend of the liquid. The perforations 173 on the plate allow for small, uniform liquid flow, buffering the impact force of the liquid and avoiding turbulence and surges caused by concentrated liquid impact, further weakening the liquid sloshing amplitude. The split hinged structure can be folded and disassembled when personnel enter the tank for maintenance or cleaning, thus facilitating tank maintenance or cleaning.

[0034] Continue as Figures 10 to 11 As shown, the movable wave deflector 172 has multiple guide protrusions 174 on its side, and a guide groove 175 is provided on the side of the vertical wave deflector 15 to cooperate with the guide protrusions 174. The guide protrusions 174 can only move up and down along the guide groove 175. Through the sliding cooperation between the guide protrusions 174 and the guide groove 175, precise guidance and limiting are provided for the lifting and lowering movement of the floating wave deflector 17, ensuring that the floating wave deflector 17 always lifts and lowers vertically and stably, eliminating the problem of deviation and tilting during the lifting and lowering process, and ensuring the dynamic working stability of the floating wave deflector 17.

[0035] like Figure 9 As shown, the main body 1 of the liquid tank also includes guardrails 22 installed on the top of the outer shell 14 of the liquid tank and distributed on the left and right sides of the inspection cover 16. The guardrails 22 are movable guardrails that can be erected vertically or lowered horizontally. The movable guardrails 22 can provide safety protection and support when workers open the inspection cover 16 to carry out tank inspection, maintenance, and cleaning operations, preventing personnel from falling and improving the safety of high-altitude operations; when in transport mode or when no work is required, the guardrails 22 can be lowered horizontally to reduce the overall height of the tank and avoid exceeding the height limit.

[0036] like Figure 1 , Figures 8 to 11 As shown, the anti-sloshing and anti-wave working principle of this transport liquid tank is as follows: During the transportation of liquid tanks, the vehicle's movement causes bumps, speed changes, and turns, resulting in sloshing and surging of the liquid inside the tank. This invention employs a three-dimensional anti-surge system consisting of vertical baffles 15 and floating baffles 17. Multiple sets of vertical baffles 15 divide the internal cavity of the tank into several independent cavities along its length, blocking large-scale longitudinal sloshing of the liquid and initially weakening the impact of the surge. The lower opening 18, middle opening 19, and upper opening 20 on the vertical baffles 15 allow for slow and even flow of liquid between the cavities, balancing the liquid pressure in different areas of the tank and preventing localized pressure buildup. The lower support ring 21 continuously supports the floating baffles 17, preventing them from sinking and jamming. The guide protrusion 174 and guide groove 175 work together to ensure that the floating baffles 17 rises and falls smoothly without deviation, continuously maintaining an efficient anti-surge state and comprehensively weakening the amplitude and impact of liquid sloshing.

[0037] The movable guardrail 22 on the top of the liquid tank can flexibly switch working states. When the equipment is under maintenance, the guardrail 22 can be erected vertically to form a safety barrier and ensure the safety of personnel during maintenance. When the equipment is being transported, the guardrail 22 can be laid down horizontally to reduce the overall height of the equipment and meet road traffic regulations. When workers enter the tank for maintenance or cleaning, the split hinged structure can fold and disassemble the floating baffle 17 to facilitate maintenance or cleaning inside the tank.

[0038] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A detachable liquid tank and vehicle frame positioning structure, comprising multiple retaining beams welded between the liquid tank and the upper beam of the vehicle frame and adapted to the bottom contour of the liquid tank, and positioning supports fixed to the left and right ends of the retaining beams and in contact with the upper beam of the vehicle frame, characterized in that: The left and right widths of the positioning supports are equal to the left and right widths of the upper beam of the vehicle frame. Each positioning support is fixedly connected to the upper beam of the vehicle frame by four positioning rods. The four positioning rods are evenly distributed to the left and right sides of the upper beam of the vehicle frame and firmly clamp the positioning support and the upper beam of the vehicle frame. The two positioning rods located on the left and right sides are symmetrically distributed about the location of the positioning support and are inclined in a figure-eight shape.

2. The easily detachable liquid tank and frame positioning structure according to claim 1, wherein An upper inner positioning hole and an upper outer positioning hole are sequentially provided on the side of the positioning support and the top side of the positioning link. An upper screw rod and an upper nut that are fitted onto the upper screw rod pass through the upper inner positioning hole and the upper outer positioning hole. A lower inner positioning hole and a lower outer strip hole are sequentially provided on the side of the upper beam of the frame and the bottom side of the positioning link. A lower screw rod and a lower nut that are fitted onto the lower screw rod pass through the upper inner positioning hole and the lower outer strip hole.

3. The easily detachable liquid tank and frame positioning structure according to claim 2, characterized by The upper and lower screws can firmly restrict the movement of the positioning support in the front-back and up-down directions, and the upper and lower nuts can firmly restrict the movement of the positioning support in the left-right direction.

4. The easily detachable liquid tank and frame positioning structure according to claim 2, wherein Each upper inner locating hole is used in conjunction with at least three lower inner locating holes, and each lower inner locating hole is not on the vertical line where the upper inner locating hole is located.

5. The easily detachable liquid tank and vehicle frame positioning structure according to claim 2, characterized in that, When the positioning link rotates around the upper inner positioning hole or the upper outer positioning hole, the lower outer strip hole overlaps with all the lower inner positioning holes, wherein the width of the lower outer strip hole is equal to the diameter of the lower screw.

6. The easily detachable liquid tank and vehicle frame positioning structure according to claim 2, characterized in that, The positioning linkage includes two sets of parallel linkage bodies and a support body located on the two sets of linkage bodies and connecting and fixing the two sets of linkage bodies.

7. A transport liquid tank, comprising a tank body, the bottom of which is detachably fixed to the upper beam of the vehicle frame via the easily detachable tank and frame positioning structure according to claim 2, wherein the tank body comprises a horizontally arranged tank shell, multiple sets of vertically fixed inside the tank shell, and an inspection cover installed on the top of the tank shell and capable of being opened or closed; characterized in that: Inside the outer shell of the liquid tank, a floating baffle is installed horizontally between two adjacent sets of vertical baffles and can rise and fall synchronously with the liquid level. The vertical baffle has a lower opening, a middle opening and an upper opening in sequence from bottom to top. At the edge of the lower opening, a lower support ring is fixed, which extends out of the vertical baffle and can prevent the floating baffle from sinking to the bottom.

8. The transport liquid tank according to claim 7, characterized in that, The floating wave deflector includes a middle wave deflector and movable wave deflectors respectively hinged and fixed to both sides of the middle wave deflector. Both the middle wave deflector and the movable wave deflectors have several holes. When the two sets of movable wave deflectors and the middle wave deflector are on the same horizontal plane, the two sets of movable wave deflectors can only be flipped upwards and cannot be flipped downwards.

9. The transport liquid tank according to claim 8, characterized in that, The movable wave deflector has multiple guide protrusions on its side, and a guide groove is provided on the side of the vertical wave deflector to cooperate with the guide protrusions. The guide protrusions can only move up and down along the guide groove.

10. The transport liquid tank according to claim 7, characterized in that, The main body of the liquid tank also includes guardrails installed on the top of the liquid tank shell and distributed on the left and right sides of the inspection cover. These guardrails are movable guardrails that can be erected vertically or laid down horizontally.

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