A supercharger for a tank car

Abstract

The utility model relates to a kind of superchargers for tank car, including first support, second support and the booster pipe group between them, booster pipe group is by total liquid inlet pipe, multiple first booster pipe group, U-shaped pipe group, multiple second booster pipe group and total gas outlet pipe composition, first and second booster pipe group are staggered arrangement, and are connected by U-shaped connecting pipe, first booster pipe and second booster pipe are equipped with the fin of diamond connection strip, connecting device includes positioning cylinder, the positioning rotating lever of driving device drive and compacting component, compacting component is connected by driving turntable, side arm, telescopic arm and dog with diamond connection strip, and is positioned compacting, four booster pipes being square adjacent, enhance overall structural stability and reliability, applicable to tank car supercharging system, structure is ingenious, convenient and practical.

Description

Technical Field

[0001] This utility model relates to the field of turbochargers, and in particular to a turbocharger for tank trucks. Background Technology

[0002] When tank trucks transport liquefied gases (such as LNG and liquid nitrogen), they need to use a booster to vaporize and pressurize the liquid inside the tank to maintain stable pressure and meet unloading requirements. Existing tank truck boosters typically use a tube bundle structure composed of multiple parallel booster pipes to increase the heat exchange area.

[0003] However, this compact tube bundle structure has significant inherent drawbacks under conditions of frequent tank truck start-stop cycles and long-distance, bumpy operation. The various pressurization pipes are only fixed together at both ends by manifolds—the main liquid inlet and main gas outlet—leaving the middle of the bundle without effective support and positioning. This makes it prone to relative displacement, swaying, and even collisions due to mechanical vibration. This long-term vibration and friction not only leads to pipe wear and fatigue stress but also poses safety hazards such as loose joints and leaks, causing considerable inconvenience. Summary of the Invention

[0004] The purpose of this invention is to provide a tank truck booster with an ingenious structure that can effectively ensure the stability of the connection between the booster pipes during transportation, making it efficient and convenient.

[0005] The technical solution to achieve the purpose of this utility model is as follows: This utility model has a first support and a second support parallel to the first support. A pressurizing pipe assembly is fixedly installed between the second support and the first support. The pressurizing pipe assembly includes a main inlet pipe with a liquid inlet, multiple first pressurizing pipe assemblies, a U-shaped pipe assembly, multiple second pressurizing pipe assemblies, and a main outlet pipe with an outlet. Each first pressurizing pipe assembly and each second pressurizing pipe assembly are arranged parallel to each other and staggered in sequence. Each first pressurizing pipe assembly includes multiple parallel first pressurizing pipes, and the second pressurizing pipe assemblies... The system includes multiple parallel second booster pipes, each corresponding to a first booster pipe. The U-shaped pipe assembly includes multiple U-shaped connecting pipes for connecting adjacent first and second booster pipes. One end of each first booster pipe, away from the U-shaped connecting pipe, is connected to the main liquid inlet pipe, and one end of each second booster pipe, away from the U-shaped connecting pipe, is connected to the main air outlet pipe. Each first and second booster pipe has multiple circumferentially distributed fins, and each fin has a diamond-shaped connecting strip. Two adjacent first booster pipes and two... The two second booster tubes are positioned and connected by a connecting device. The connecting device includes a positioning cylinder fixed between the second bracket and the first bracket, a positioning rotating rod driven by a driving device and disposed in the positioning cylinder, and multiple clamping components that position and clamp each booster tube under the drive of the positioning rotating rod. The clamping components are evenly arranged along the extension direction of the positioning rotating rod, and the positioning rotating rod is coaxial with the positioning cylinder. The clamping components include a driving turntable disposed on the positioning rotating rod, a positioning base disposed in the positioning cylinder, multiple side arms circumferentially distributed on the positioning base along the axis of the driving turntable, telescopic grooves disposed in the side arms, telescopic arms that slide in the corresponding telescopic grooves under the drive of the driving turntable, and claws disposed on the telescopic arms that can engage with the diamond-shaped connecting strips. The positioning cylinder is provided with side grooves corresponding to each side arm and allowing the side arms and telescopic arms to extend. After each claw engages with the corresponding diamond-shaped connecting strip, the driving turntable positions the four booster tubes that are adjacent in a square shape through rotation and the cooperation of the telescopic arms and the telescopic grooves.

[0006] Furthermore, each side arm is provided with a top groove corresponding to each telescopic groove. The top groove is connected to the telescopic groove, and one end of the top groove extends out of the side arm along the extension direction of the telescopic groove. The telescopic arm is provided with a limiting rod that is slidably disposed in the top groove. The drive turntable is provided with arc-shaped drive grooves that are circumferentially distributed on the drive turntable along the axis of the drive turntable. Each arc-shaped drive groove is not coaxial with the drive turntable. Each limiting rod is also slidably disposed in the corresponding arc-shaped drive groove. The telescopic arm is slidably disposed in the telescopic groove through the rotation of the drive turntable, the sliding engagement of the limiting rod with the arc-shaped drive groove, and the sliding engagement of the limiting rod with the top groove.

[0007] Furthermore, the aforementioned driving device is a drive motor mounted on the positioning cylinder. The output end of the drive motor is equipped with a reducer, and the positioning rotating rod is mounted on the output end of the reducer. The drive turntable drives the telescopic arm to extend and slide within the side arm by driving the positioning rotating rod through the drive motor.

[0008] Furthermore, the aforementioned driving device is a driving part located at the upper end of the positioning rod. The driving part is provided with a rotating seat, and a locking plate is rotatably mounted on the rotating seat. The rotation axis of the locking plate is perpendicular to the axis of the positioning rod. The upper end of the positioning cylinder is open, and the upper end of the positioning cylinder is provided with multiple top locking grooves distributed circumferentially along the axis of the positioning cylinder. The extension direction of each top locking groove is parallel to the axis of the positioning cylinder, and the upper end of each groove extends out of the positioning cylinder. After the positioning rod rotates, the locking plate is inserted into the corresponding top locking groove and locks the rotated positioning rod.

[0009] Furthermore, the aforementioned drive turntable is provided with a first through hole through which the positioning rod can pass, and the positioning base is provided with a second through hole through which the positioning rod can pass. The positioning rod is provided with multiple side sliding grooves, and the extension direction of each side sliding groove is parallel to the axis of the positioning rod. The first through hole is provided with a side slider that is adapted to each side sliding groove. The drive turntable is rotatably connected to the positioning base. The drive turntable is slidably connected to the positioning rod by the cooperation of each side slider and side sliding groove. The side groove is a long groove provided on the side wall of the positioning cylinder, and the extension direction of the side groove is parallel to the axis of the positioning cylinder. Each side groove is provided with multiple side locking grooves evenly distributed along the extension direction of the side groove. The extension direction of each side locking groove is perpendicular to the extension direction of the side groove. The bottom of each side arm is rotatably connected with a locking rod. After the height of the positioning base and each side arm is adjusted, they are fixed in the positioning cylinder by locking the corresponding side locking groove with the locking rod.

[0010] Furthermore, the aforementioned locking rod is provided with a locking plane, on which a magnetic block is installed. Each side locking groove is provided with a magnet that matches the magnetic block. After the locking rod is inserted into the corresponding side locking groove, it is fixed in the corresponding side locking groove by the magnetic attraction between the magnetic block and the magnet.

[0011] This utility model has positive effects: (1) By setting a connecting device, this utility model connects the original independent and connected to the main liquid inlet pipe and the main air outlet pipe into a solid whole. By setting a drive plate and a clamping component, the claws on each telescopic arm are engaged with the diamond connecting strips on each pressure pipe. During the rotation of the positioning rod, the drive plate is rotated. The drive plate drives the side arm and telescopic arm to extend and retract, thereby positioning each pressure pipe. At the same time, the two adjacent square first pressure pipes and second pressure pipes are clamped and positioned simultaneously, thus forming a stable and mesh-like support structure. This greatly improves the bending and torsional stiffness of the entire pressure pipe group, thereby greatly suppressing the relative displacement, swing and collision of each pressure pipe during transportation bumps. This fundamentally reduces the problem of pressure pipe wear, joint loosening or leakage caused by fatigue. This greatly improves the service life and safety of the equipment. At the same time, the connecting device is set as an independent module, which is convenient for installation and disassembly, and improves the overall manufacturability and maintainability.

[0012] (2) By setting an arc-shaped drive groove that is not coaxial with the drive turntable, the present invention realizes the rotational motion of a single drive turntable through the cooperation of the arc-shaped drive groove and the limiting slide bar. It can synchronously and equally drive the telescopic arms in all directions to extend or retract, ensuring that all claws simultaneously press or tighten the pressure tube, applying force evenly, ensuring the synchronization of each side, and converting the rotational motion into linear motion. On the one hand, it ensures the compactness of the structure, and on the other hand, it ensures the stability and precision of the entire structure, making it efficient and convenient.

[0013] (3) By using the combination of the drive motor and the reducer as a power source, this utility model can realize remote electric control operation, which greatly improves the convenience and efficiency of operation. At the same time, the drive motor can more accurately control the stroke of the clamping claw and the final locking force, which not only ensures that the fastening is in place, but also avoids damage to the diamond connecting strip or the pressure tube due to excessive tightness.

[0014] (4) This utility model achieves mechanical self-locking by setting the drive device as the drive unit and the cooperation between the lock plate on the drive unit and the top lock groove. At the same time, the lock plate can also be used as a wrench during the operation, giving the operator a convenient point of force application. It ensures that the positioning rod will not rotate unexpectedly in the vibration environment, resulting in clamping failure. It has high safety redundancy. Manually rotating the drive unit and inserting the lock plate allows for more direct observation of the engagement of the claw and the diamond connecting strip, thereby making adjustments. It is efficient and convenient.

[0015] (5) This utility model connects the drive turntable and the positioning base by rotation. The first through hole and the second through hole can ensure that the positioning rod can pass through the drive turntable and the positioning base. At the same time, a side slider is set in the first through hole and a side groove is set on the positioning rod. The cooperation of the positioning slider and the positioning groove can ensure that the drive turntable can rotate synchronously with the positioning rod. At the same time, the height of the drive turntable and the positioning base can be adjusted. After the adjustment is completed, the positioning is achieved by the cooperation of the locking rod and the side locking groove. The height of the pressing component can be flexibly adjusted according to the actual arrangement density of the pressurized tube group and the position that needs to be strengthened. Thus, different layers of the tube bundle can be effectively supported and positioned. By cooperating with the locking rod and the side locking grooves of different heights, the adjusted height can be firmly locked, ensuring the stability of the pressing component's position under vibration.

[0016] (6) By setting a locking plane and setting a magnetic block on the locking plane, the magnetic block and the magnet can provide a continuous attraction force for the locking rod, so that it fits tightly in the side locking groove. This effectively prevents loosening or dislodgement that may occur due to high frequency vibration during vehicle operation. At the same time, only a pulling force sufficient to overcome the magnetic force is needed to unlock. When installing, it can automatically engage and position itself when close. Compared with purely mechanical thread or buckle locking, the operation is faster and less labor-intensive, and it is convenient for on-site installation, maintenance and adjustment. Attached Figure Description

[0017] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein... Figure 1 This is a schematic diagram of the overall structure of the turbocharger for mid-tank vehicles according to this utility model; Figure 2 This is a top view of the overall structure of the turbocharger for mid-tank vehicles according to this utility model; Figure 3 This is a schematic diagram of the connection structure between two adjacent first booster pipes and two second booster pipes arranged in a square shape in this utility model; Figure 4 This is a cross-sectional view of the overall structure of the connecting device in Embodiment 1; Figure 5 This is a top view of the overall structure of the clamping assembly in this utility model; Figure 6 for Figure 5 Enlarged view of point A in the middle; Figure 7 This is a cross-sectional view of the overall structure of the connecting device in Embodiment 2; Figure 8 for Figure 7 Enlarged view of point B in the middle; Figure 9 This is a top view of the positioning cylinder in Example 2; The attached figures are labeled as follows: Second bracket 1, first bracket 2, main liquid inlet pipe 21, liquid inlet 22, main air outlet pipe 23, air outlet 24, U-shaped connecting pipe 3, first pressurizing pipe 4, second pressurizing pipe 5, fins 6, diamond-shaped connecting strip 61, connecting device 7, positioning cylinder 71, side groove 711, top locking groove 712, side locking groove 713, magnet 714, drive motor 72a, drive unit 72b, rotating seat 721, locking plate 722, positioning rotating rod 73, side sliding groove 731, drive turntable 74, arc-shaped drive groove 741, first through hole 742, side slider 743, positioning base 75, side arm 76, locking rod 761, magnetic block 762, telescopic arm 77, limiting sliding rod 771. Detailed Implementation

[0018] (Example 1) See Figures 1 to 4This utility model has a first support 2 and a second support 1 parallel to the first support 2. A pressurization pipe assembly is fixedly installed between the second support 1 and the first support 2. The pressurization pipe assembly includes a main inlet pipe 21 with an inlet 22, multiple first pressurization pipe assemblies, a U-shaped pipe assembly, multiple second pressurization pipe assemblies, and a main outlet pipe 23 with an outlet 24. Each first pressurization pipe assembly and each second pressurization pipe assembly are arranged parallel to each other and staggered in sequence. Each first pressurization pipe assembly includes multiple parallel first pressurization pipes 4, and each second pressurization pipe assembly includes multiple parallel first pressurization pipes 4 arranged one-to-one with each first pressurization pipe 4. The corresponding second booster pipe 5, the U-shaped pipe assembly includes multiple U-shaped connecting pipes 3 for connecting adjacent first booster pipes 4 and second booster pipes 5. The end of each first booster pipe 4 away from the U-shaped connecting pipe 3 is connected to the main liquid inlet pipe 21, and the end of each second booster pipe 5 away from the U-shaped connecting pipe 3 is connected to the main air outlet pipe 23. Each first booster pipe 4 and each second booster pipe 5 is provided with multiple circumferentially distributed fins 6, and each fin 6 is provided with a diamond-shaped connecting strip 61. Two adjacent first booster pipes 4 and two second booster pipes 5 are positioned by a connecting device 7. The connection device 7 includes a positioning cylinder 71 fixed between the second bracket 1 and the first bracket 2, a positioning rotating rod 73 driven by a driving device and rotatably disposed within the positioning cylinder 71, and a plurality of clamping assemblies that position and clamp each pressure tube under the drive of the positioning rotating rod 73. The clamping assemblies are evenly arranged along the extension direction of the positioning rotating rod 73, and the positioning rotating rod 73 is coaxially arranged with the positioning cylinder 71. Each clamping assembly includes a driving turntable 74 disposed on the positioning rotating rod 73, a positioning base 75 disposed within the positioning cylinder 71, and a plurality of circumferentially distributed components along the axis of the driving turntable 74. The positioning cylinder 71 has a side arm 76 on the positioning base 75, a telescopic groove in the side arm 76, a telescopic arm 77 that is slidably disposed in each corresponding telescopic groove under the drive of the drive turntable 74, and a claw disposed on the telescopic arm 77 that can engage with the diamond-shaped connecting strip 61. The positioning cylinder 71 has a side groove 711 that corresponds to each side arm 76 and allows the side arm 76 and the telescopic arm 77 to extend. After each claw engages with the corresponding diamond-shaped connecting strip 61, the drive turntable 74 positions the four adjacent square booster pipes by rotation and the cooperation of the telescopic arm 77 with the telescopic groove.

[0019] Each side arm 76 is provided with a top groove corresponding to each telescopic groove. The top groove is connected to the telescopic groove. One end of the top groove extends out of the side arm 76 along the extension direction of the telescopic groove. The telescopic arm 77 is provided with a limiting rod 771 that is slidably disposed in the top groove. The drive turntable 74 is provided with arc-shaped drive grooves 741 that are circumferentially distributed on the drive turntable 74 along the axis of the drive turntable 74. Each arc-shaped drive groove 741 is not coaxial with the drive turntable 74. Each limiting rod 771 is also slidably disposed in the corresponding arc-shaped drive groove 741. The telescopic arm 77 is slidably disposed in the telescopic groove through the rotation of the drive turntable 74, the sliding engagement of the limiting rod 771 with the arc-shaped drive groove 741, and the sliding engagement of the limiting rod 771 with the top groove.

[0020] The driving device is a drive motor 72a installed on the positioning cylinder 71. The output end of the drive motor 72a is equipped with a reducer. The positioning rotating rod 73 is installed on the output end of the reducer. The drive turntable 74 drives the telescopic arm 77 to slide within the side arm 76 by driving the positioning rotating rod 73 through the drive motor 72a.

[0021] (Example 2) See Figure 1 , Figure 2 , Figures 5 to 9 In this utility model, the driving device is a driving part 72b set on the upper end of the positioning rotating rod 73. The driving part 72b is provided with a rotating seat 721, and a locking plate 722 is rotatably provided on the rotating seat 721. The rotation axis of the locking plate 722 is perpendicular to the axis of the positioning rotating rod 73. The upper end of the positioning cylinder 71 is open, and the upper end of the positioning cylinder 71 is provided with a plurality of top locking grooves 712 distributed circumferentially along the axis of the positioning cylinder 71. The extension direction of each top locking groove 712 is parallel to the axis of the positioning cylinder 71, and the upper end of each groove extends out of the positioning cylinder 71. After the positioning rotating rod 73 rotates, the locking plate 722 is inserted into the corresponding top locking groove 712 and locks the rotated positioning rotating rod 73.

[0022] The drive turntable 74 has a first through hole 742 through which the positioning rod 73 can pass. The positioning base 75 has a second through hole through which the positioning rod 73 can pass. The positioning rod 73 has multiple side sliding grooves 731, and the extending direction of each side sliding groove 731 is parallel to the axis of the positioning rod 73. The first through hole 742 is provided with side sliders 743 that are adapted to each side sliding groove 731. The drive turntable 74 is rotatably connected to the positioning base 75. The drive turntable 74 is slidably connected to the positioning rod through the cooperation of each side slider 743 and the side sliding groove 731. On 73, the side groove 711 is a long groove provided on the side wall of the positioning cylinder 71, and the extension direction of the side groove 711 is parallel to the axis of the positioning cylinder 71. Each side groove 711 has a plurality of side locking grooves 713 evenly distributed along the extension direction of the side groove 711. The extension direction of each side locking groove 713 is perpendicular to the extension direction of the side groove 711. The bottom of each side arm 76 is rotatably connected to a locking rod 761. After the height of the positioning base 75 and each side arm 76 is adjusted, the locking rod 761 is inserted into the corresponding side locking groove 713 and fixedly installed in the positioning cylinder 71.

[0023] The locking rod 761 is provided with a locking plane, and a magnetic block 762 is installed on the locking plane. Each side locking groove 713 is provided with a magnet 714 that is compatible with the magnetic block 762. After the locking rod 761 is inserted into the corresponding side locking groove 713, it is fixed in the corresponding side locking groove 713 by the magnetic attraction between the magnetic block 762 and the magnet 714.

[0024] All other technical features are the same as those in Embodiment 1.

[0025] The working principle of this utility model is as follows: During use, the low-temperature liquid absorbs heat and vaporizes through a flow channel formed by the main liquid inlet pipe 21, the staggered first and second pressurizing pipe groups, the U-shaped connecting pipe 3, and the main vent pipe 23, thus pressurizing the tanker tank. Simultaneously, during the stable connection of the two adjacent square first pressurizing pipes 4 and 5, each claw is first engaged with the diamond-shaped connecting strip 61. Then, the positioning rotating rod 73 rotates via a drive device. The drive device can be configured as a drive motor 72a for automated rotation, or as a drive unit 72b. When the drive device is configured as drive unit 72b, which is located at the upper end of the positioning rotating rod 73, the positioning rotating rod 73, after rotation, can mechanically self-lock through the cooperation of the locking plate 722 and the top locking groove 712, thereby preventing positioning... The rotation of the rotating rod 73 simultaneously drives the turntable 74 and the positioning base 75 to adjust their height through the cooperation of the side slider 743 and the side slide groove 731. After adjustment, the locking rod 761 is engaged with the corresponding side locking groove 713 and then fixed in the corresponding side locking groove 713 by the magnetic attraction between the magnetic block 762 and the magnet 714. This operation is performed synchronously by multiple clamping components evenly distributed along the axial direction, and is locked by the motor self-locking or the mechanical locking plate 722 after the operation is completed. This creates a rigid spatial grid support structure inside the entire booster tube bundle, effectively solving the stability problem of the booster tube under vibration environment. Through internal active fastening and positioning, the overall rigidity is greatly enhanced, effectively suppressing the relative displacement, wear and fatigue of the pipeline, and ensuring the long-term reliability and safety of the tank truck under complex operating conditions. The structure is ingenious, stable and practical.

[0026] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A tank truck booster, comprising a first bracket and a second bracket parallel to the first bracket, wherein a booster pipe assembly is fixedly installed between the second bracket and the first bracket, the booster pipe assembly comprising a main inlet pipe with a liquid inlet, a plurality of first booster pipe assemblies, a U-shaped pipe assembly, a plurality of second booster pipe assemblies, and a main outlet pipe with an outlet, wherein the first booster pipe assemblies and the second booster pipe assemblies are arranged parallel to each other and staggered in sequence, the first booster pipe assemblies comprising a plurality of parallel first booster pipes, the second booster pipe assemblies comprising a plurality of parallel second booster pipes corresponding one-to-one with each of the first booster pipes, the U-shaped pipe assemblies comprising a plurality of U-shaped connecting pipes for connecting adjacent first and second booster pipes, one end of each first booster pipe away from the U-shaped connecting pipe being connected to the main inlet pipe, and one end of each second booster pipe away from the U-shaped connecting pipe being connected to the main outlet pipe; characterized in that: Each of the first and second booster tubes has multiple circumferentially distributed fins, and each fin has a diamond-shaped connecting strip. Two adjacent first and second booster tubes are positioned and connected by a connecting device. The connecting device includes a positioning cylinder fixed between a second support and a first support, a positioning rotating rod driven by a driving device and rotatably disposed within the positioning cylinder, and multiple clamping components that, driven by the positioning rotating rod, position and clamp each booster tube. The clamping components are evenly arranged along the extension direction of the positioning rotating rod, which is coaxial with the positioning cylinder. Each clamping component includes... The system includes a drive turntable mounted on a positioning rod, a positioning base mounted inside a positioning cylinder, multiple side arms circumferentially distributed on the positioning base along the axis of the drive turntable, telescopic grooves mounted inside the side arms, telescopic arms slidably mounted in their respective telescopic grooves under the drive of the drive turntable, and claws mounted on the telescopic arms that can engage with diamond-shaped connecting strips. The positioning cylinder has side grooves corresponding to each side arm and allowing the side arms and telescopic arms to extend. After each claw engages with the corresponding diamond-shaped connecting strip, the drive turntable positions the four adjacent, square-shaped booster pipes through rotation and the cooperation of the telescopic arms and telescopic grooves.

2. The tank truck turbocharger according to claim 1, characterized in that: Each side arm is provided with a top groove corresponding to each telescopic groove. The top groove is connected to the telescopic groove. One end of the top groove extends out of the side arm along the extension direction of the telescopic groove. The telescopic arm is provided with a limiting rod that is slidably disposed in the top groove. The drive turntable is provided with arc-shaped drive grooves that are circumferentially distributed on the drive turntable along the axis of the drive turntable. Each arc-shaped drive groove is not coaxial with the drive turntable. Each limiting rod is also slidably disposed in the corresponding arc-shaped drive groove. The telescopic arm is slidably disposed in the telescopic groove through the rotation of the drive turntable, the sliding engagement of the limiting rod with the arc-shaped drive groove, and the sliding engagement of the limiting rod with the top groove.

3. A tank truck turbocharger according to claim 2, characterized in that: The driving device is a drive motor mounted on the positioning cylinder. The output end of the drive motor is equipped with a reducer. The positioning rod is mounted on the output end of the reducer. The drive turntable drives the telescopic arm to extend and slide within the side arm by driving the positioning rod through the drive motor.

4. A tank truck turbocharger according to claim 2, characterized in that: The driving device is a driving part set on the upper end of the positioning rod. The driving part is provided with a rotating seat, and a locking plate is rotatably mounted on the rotating seat. The rotation axis of the locking plate is perpendicular to the axis of the positioning rod. The upper end of the positioning cylinder is open, and the upper end of the positioning cylinder is provided with multiple top locking grooves distributed circumferentially along the axis of the positioning cylinder. The extension direction of each top locking groove is parallel to the axis of the positioning cylinder, and the upper end of each groove extends out of the positioning cylinder. After the positioning rod rotates, the locking plate is inserted into the corresponding top locking groove and locks the rotated positioning rod.

5. A tank truck turbocharger according to claim 4, characterized in that: The drive turntable has a first through hole through which the positioning rod can pass, and the positioning base has a second through hole through which the positioning rod can pass. The positioning rod has multiple side sliding grooves, and the extension direction of each side sliding groove is parallel to the axis of the positioning rod. The first through hole has a side slider that matches each side sliding groove. The drive turntable is rotatably connected to the positioning base. The drive turntable is slidably connected to the positioning rod by the cooperation of each side slider and side sliding groove. The side groove is a long groove set on the side wall of the positioning cylinder, and the extension direction of the side groove is parallel to the axis of the positioning cylinder. Each side groove has multiple side locking grooves evenly distributed along the extension direction of the side groove. The extension direction of each side locking groove is perpendicular to the extension direction of the side groove. The bottom of each side arm is rotatably connected to a locking rod. After the height of the positioning base and each side arm is adjusted, they are fixed in the positioning cylinder by locking the corresponding side locking groove with the locking rod.

6. A tank truck turbocharger according to claim 5, characterized in that: The locking rod has a locking plane, on which a magnetic block is installed. Each side locking groove is equipped with a magnet that matches the magnetic block. After the locking rod is inserted into the corresponding side locking groove, it is fixed in the corresponding side locking groove by the magnetic attraction between the magnetic block and the magnet.

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