Automatic docking cryogenic medium filling pipeline

Abstract

An automatic docking cryogenic medium filling pipeline, comprising a mounting base (1), an outlet-side pipeline (2) and an inlet-side pipeline (3), wherein the mounting base comprises a transverse base (11) and a longitudinal base (12); a first flange (21) is provided at the right end of the outlet-side pipeline; a second flange (31) is provided at the left end of the inlet-side pipeline; the second flange is provided with a support frame (4); the support frame is mounted on the transverse base by means of a cross sliding rail mechanism (5), and a driving device (6) is provided between the support frame and the transverse base; a plurality of locking assemblies (7) distributed in a circumferential direction are provided on the second flange on the left side of the support frame; and each locking assembly comprises a bracket and an air cylinder (71), and the bracket comprises a support plate (72), a lug plate (73) and a guide plate (74), the guide plate being provided with a guide groove (741), the air cylinder being hinged to the lug plate, a hook head (75) being fixed to a piston rod (711) of the air cylinder, and the hook head being provided with a guide column (751) located in the guide groove. The automatic docking cryogenic medium filling pipeline is convenient to dock and highly adaptable and reliable.

Description

An automatic docking low-temperature medium filling pipeline

[0001] This application claims priority to application number CN202311223738X, filed September 21, 2023, entitled “Automatic docking of cryogenic medium filling pipeline,” filed by the applicant. The entire contents of the aforementioned application are incorporated herein by reference in their entirety. Technical Field

[0002] The invention relates to a pipeline, in particular to a horizontally automatically docked low-temperature medium filling pipeline.

[0003] Background of the Invention

[0004] In launch vehicle systems, cryogenic refueling pipelines between the mobile launch platform and fixed service tower, as well as between liquid hydrogen transport vehicles and ground equipment, are connected via flanges and require frequent disconnection and reconnection. Currently, these flanges are manually disassembled and assembled by operators, which is labor-intensive and time-consuming. Furthermore, manual cold tightening is required during the refueling process to prevent leaks due to shrinkage. These issues are particularly prominent for cryogenic pipelines with large diameters and high pressures.

[0005] Summary of the Invention

[0006] The object of the present invention is to provide an automatic docking low-temperature medium filling pipeline, which has the advantages of simple structure, convenient docking, strong adaptability and high reliability.

[0007] In order to solve the above-mentioned problems existing in the prior art, the present invention provides an automatic docking low-temperature medium filling pipeline, including a mounting base, an outlet side pipeline and an inlet side pipeline, the mounting base includes a fixedly connected transverse base and a longitudinal base, the right end of the outlet side pipeline is provided with a first flange, the first flange is horizontally fixed on the transverse base, the inlet side pipeline is a curved hose and is horizontally supported on the transverse base and the longitudinal base, the left end of the inlet side pipeline is provided with a second flange docked with the first flange, the second flange is provided with a supporting frame, the supporting frame is installed on the transverse base through a cross slide mechanism, a driving device is provided between the right side of the supporting frame and the transverse base, and a plurality of locking assemblies distributed along the circumferential direction are provided on the second flange on the left side of the supporting frame. The locking assembly includes a bracket and a cylinder, and the bracket includes a bracket plate fixed on the second flange, two ear plates are provided on the right side of the bracket plate, and two guide plates are provided on the left side of the bracket plate. A guide groove is provided on the guide plate, the left half of the guide groove is inclined, and the right half of the guide groove is left and right. The cylinder is located between the two ear plates, and the two sides of the cylinder body of the cylinder are respectively hinged to the ear plates through a rotating shaft. The piston rod of the cylinder passes through the through hole on the bracket plate and is located between the two guide plates. A hook is fixed on the piston rod, and guide columns in the guide groove are respectively provided on both sides of the hook.

[0008] Furthermore, the present invention provides an automatic docking low-temperature medium filling pipeline, wherein a locking gas collecting pipe and an unlocking gas collecting pipe are fixed to the second flange between the support frame and the locking assembly through a bracket, and a locking pipe joint and an unlocking pipe joint are correspondingly provided on the locking gas collecting pipe and the unlocking gas collecting pipe, and the locking chamber connecting nozzle and the unlocking chamber connecting nozzle of the cylinder of each locking assembly are respectively connected to the locking gas collecting pipe and the unlocking gas collecting pipe through an air supply pipe.

[0009] Furthermore, the present invention provides an automatic docking of a low-temperature medium filling pipeline, wherein the support frame includes two support assemblies arranged at intervals, the support assembly includes a rectangular frame and a clamp in the frame and fixed on the second flange, and inclined connecting plates are respectively fixed at the four corners of the frame, and an adjustment device is respectively provided between each connecting plate and the clamp, and the adjustment device includes a lifting eye screw installed on the connecting plate, and the lifting eye screw is hinged to a guide cylinder through a pin shaft, and a disc spring and a T-shaped pull rod are provided in the guide cylinder, and the disc spring is squeezed between the end plate of the guide cylinder and the baffle of the pull rod, and the pull rod passes through the disc spring and the end plate of the guide cylinder and is installed with a U-shaped fork through a thread, and the U-shaped fork is hinged to the support ear on the clamp through a pin shaft, and a plurality of connecting rods are fixed between the frames of the two support assemblies.

[0010] Furthermore, the present invention provides an automatic docking of a low-temperature medium filling pipeline, wherein the cross slide rail mechanism includes two transverse guide rails fixed on the transverse base, the transverse sliders on the two transverse guide rails are fixed with a transverse frame, the transverse frame is fixed with two longitudinal guide rails, and the longitudinal sliders on the two longitudinal guide rails are fixedly connected to the support frame.

[0011] Furthermore, the present invention provides an automatic docking of a low-temperature medium filling pipeline, wherein a table is fixed on the horizontal base, a support is fixed on the table, the horizontal guide rail is fixed on the table, the driving device is an electric push rod, the left end of the electric push rod is hinged to the support frame through a vertical pin shaft, and the right end of the electric push rod is hinged to the support through a vertical pin shaft.

[0012] Furthermore, the present invention provides an automatic docking low-temperature medium filling pipeline, wherein two first fixing seats are provided on the transverse base, the first fixing seat includes a first bottom plate fixed to the transverse base by bolts, a first top plate is fixed on the first bottom plate by four first columns, a first arc-shaped support is provided on the first top plate, the first flange is located on the first arc-shaped support, a first arc-shaped hoop piece is provided on the upper side of the first flange at a position corresponding to the first arc-shaped support, and both ends of the first arc-shaped hoop piece are fixedly connected to the first top plate by first screws.

[0013] Furthermore, the present invention provides an automatic docking low-temperature medium filling pipeline, wherein the left end of the outlet side pipeline is provided with a third flange, the right end of the inlet side pipeline is provided with a fourth flange, and a second fixing seat is provided on the longitudinal base, the second fixing seat includes a second bottom plate fixed to the longitudinal base by bolts, a second top plate is fixed on the second bottom plate by four second columns, a second arc-shaped support is provided on the second top plate, the fourth flange is located on the second arc-shaped support, and a second arc-shaped hoop piece is provided on the upper side of the fourth flange at a position corresponding to the second arc-shaped support, and both ends of the second arc-shaped hoop piece are fixedly connected to the second top plate by second screws.

[0014] Furthermore, the present invention provides an automatic docking low-temperature medium filling pipeline, wherein a transition base is fixed at the connection between the transverse base and the longitudinal base, and the transverse base, the longitudinal base and the transition base are provided with support devices distributed at intervals along the inlet-side pipeline, the support device includes two vertical support rods, and a roller is installed between the upper ends of the two support rods through a support shaft, and the inlet-side pipeline is horizontally supported on the rollers of each of the support devices.

[0015] Furthermore, the present invention provides an automatic docking low-temperature medium filling pipeline, wherein a sealing structure is provided between the first flange and the second flange, and the sealing structure is a tongue-and-groove seal, a concave-convex surface seal, or a raised surface seal.

[0016] Furthermore, the present invention provides an automatic docking low-temperature medium filling pipeline, wherein the outlet side pipeline is a hard pipe or a soft pipe with an elbow, and the left port of the outlet side pipeline faces upward.

[0017] Compared with the prior art, the automatic docking low-temperature medium filling pipeline provided by the present invention has the following advantages: the present invention provides a mounting base, an outlet side pipeline and an inlet side pipeline, so that the mounting base is provided with a fixedly connected transverse base and a longitudinal base, a first flange is provided at the right end of the outlet side pipeline, and the first flange is horizontally fixed on the transverse base, the inlet side pipeline adopts a curved hose and is horizontally supported on the transverse base and the longitudinal base, a second flange docked with the first flange is provided at the left end of the inlet side pipeline, a supporting frame is provided on the second flange, the supporting frame is installed on the transverse base through a cross slide rail mechanism, and a support frame is provided between the right side of the supporting frame and the transverse base. A driving device is provided, and multiple locking assemblies distributed along the circumferential direction are provided on the second flange on the left side of the supporting frame, and the locking assembly is provided with a bracket and a cylinder, wherein the bracket includes a bracket plate fixed on the second flange, two ear plates are provided on the right side of the bracket plate, two guide plates are provided on the left side of the bracket plate, and a guide groove is provided on the guide plate. The left half of the guide groove is inclined, and the right half of the guide groove is arranged left and right. The cylinder is located between the two ear plates, and the two sides of the cylinder body of the cylinder are respectively hinged to the corresponding ear plates through a rotating shaft. The piston rod of the cylinder passes through the through hole on the bracket plate and is located between the two guide plates. A hook is fixed on the piston rod, and guide columns in the corresponding guide grooves are respectively provided on both sides of the hook. Thus, an automatic docking low-temperature medium filling pipeline with a simple structure, convenient docking, strong adaptability and high reliability is formed. In actual application, the right end of the inlet side pipeline is connected to the fixed service tower pipeline, and the left end of the outlet side pipeline is connected to the movable launch platform pipeline. When the inlet side pipeline needs to be docked with the outlet side pipeline, air is first supplied to the unlocking chamber of each locking component cylinder, and the piston rod of each locking component cylinder is gradually extended. When the guide column slides to the left half of the guide groove, the hook head will swing away from the second flange with the cylinder body shaft as the rotation axis. When the piston rod is extended into place, air is kept supplied to the unlocking chamber of each locking component cylinder; then the support frame is driven to move to the left with the second flange through the driving device. When After the second flange contacts the first flange, the driving device stops; then, air is supplied to the locking chambers of the cylinders of each locking assembly, and the piston rods of the cylinders of each locking assembly are gradually retracted. The hook head, in cooperation with the guide column and the left half of the guide groove, will swing toward the direction close to the second flange and get stuck on the left side of the edge of the first flange. When the piston rod continues to retract, the hook head, in cooperation with the guide column and the right half of the guide groove, will move to the right and squeeze the second flange and the first flange tightly together. When the piston rod is retracted into place, the air supply to the locking chambers of the cylinders of each locking assembly is maintained. At this point, the docking of the inlet side pipeline and the outlet side pipeline is completed, and the cryogenic medium can be transported (filled or discharged) between the mobile launch platform and the fixed service tower. The disconnection process of the inlet side pipeline and the outlet side pipeline is the opposite of the docking process and will not be described here.Compared with the prior art, the present invention achieves automatic docking and disconnection between the inlet-side pipeline and the outlet-side pipeline by controlling each locking component and the drive device. This not only reduces labor intensity and improves work efficiency, but also effectively compensates for the cold shrinkage of the first and second flanges at low temperatures through the continuous locking function of the cylinders of each locking component during docking, eliminating the need for manual cold tightening, facilitating unmanned refueling operations and improving safety. In addition, by using a curved hose for the inlet-side pipeline, the present invention can well adapt to the movement and position changes of the second flange. The support frame is installed on the transverse base through a cross-slide mechanism, which can well adapt to the position and posture deviation between the second flange and the first flange during docking. By using the bracket and cylinder structure of the locking component, automatic docking locking or unlocking is achieved, and docking reliability is guaranteed.

[0018] BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the present invention, the following briefly describes the drawings used in the specific embodiments of the present invention.

[0020] FIG1 is a front view of an automatic docking cryogenic medium filling pipeline according to the present invention;

[0021] FIG2 is an axonometric view of an automatic docking cryogenic medium filling pipeline according to the present invention;

[0022] FIG3 is a partial enlarged view of position A in FIG2 ;

[0023] FIG4 is an axonometric view of the outlet-side pipeline and the inlet-side pipeline in the present invention;

[0024] FIG5 is a partial enlarged view of position B in FIG4 ;

[0025] FIG6 is a cross-sectional view of the locking assembly of the present invention;

[0026] FIG7 is a half-section view of the support assembly of the present invention;

[0027] FIG8 is a top view of the support assembly of the present invention;

[0028] FIG9 is a partial enlarged view of position C in FIG7 ;

[0029] FIG10 is an axonometric view of the cross slide mechanism of the present invention;

[0030] FIG11 is an axonometric view of the table and support in the present invention.

[0031] Modes for Carrying Out the Invention

[0032] In order to make the technical objectives, technical solutions and beneficial effects of the present invention clearer, the specific embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings. The specific embodiments described are only part of the embodiments of the present invention, rather than all the embodiments. Based on the specific embodiments of the present invention, other embodiments obtained by those skilled in the art without making any creative work shall fall within the scope of protection of the present invention.

[0033] First of all, it should be noted that the directional words such as up, down, left, right, front, and back described in the present invention are only described based on the accompanying drawings for ease of understanding, and are not intended to limit the technical solutions of the present invention and the scope of protection requested. Unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, and can be fixed connections, detachable connections, or connected as one; can be mechanical connections or electrical connections; can be directly connected or indirectly connected through an intermediate medium, can be internal connections between two components, or can be an interaction relationship between two components. Those skilled in the art should understand the specific meanings of the above terms according to the specific circumstances.

[0034] As shown in Figures 1 to 11, a specific embodiment of the present invention for automatically docking a low-temperature medium filling pipeline includes a mounting base 1, an outlet side pipeline 2, and an inlet side pipeline 3. The mounting base 1 is provided with a transverse base 11 and a longitudinal base 12 that are fixedly connected. A first flange 21 is provided at the right end of the outlet side pipeline 2, and the first flange 21 is horizontally fixed on the transverse base 11. The inlet side pipeline 3 uses a curved hose and is horizontally supported on the transverse base 11 and the longitudinal base 12. A second flange 31 that docks with the first flange 21 is provided at the left end of the inlet side pipeline 3, a support frame 4 is provided on the second flange 31, and the support frame 4 is installed on the transverse base 11 through a cross slide mechanism 5, a driving device 6 is provided between the right side of the support frame 4 and the transverse base 11, and a plurality of locking assemblies 7 distributed along the circumferential direction are provided on the second flange 31 on the left side of the support frame 4. The locking assembly 7 is provided with a bracket and a cylinder 71, wherein the bracket includes a bracket plate 72 fixed to the second flange 31, two ear plates 73 are provided on the right side of the bracket plate 72, and two guide plates 74 are provided on the left side of the bracket plate 72. A guide groove 741 is provided on the guide plate 74, and the left half of the guide groove 741 is tilted, and the right half of the guide groove 741 is arranged left and right. The cylinder 71 is located between the two ear plates 73, and the two sides of the cylinder body of the cylinder 71 are hinged to the corresponding ear plates 73 through a rotating shaft. The piston rod 711 of the cylinder 71 passes through the through hole 721 on the bracket plate 72 and is located between the two guide plates 74, and a hook head 75 is fixed on the piston rod 711. Guide columns 751 located in the corresponding guide grooves 741 are provided on both sides of the hook head 75.

[0035] The above arrangement constitutes an automatic docking cryogenic medium filling pipeline with a simple structure, convenient docking, strong adaptability and high reliability. In actual application, the left end of the outlet side pipeline 2 is connected to the movable launch platform pipeline, and the right end of the inlet side pipeline 3 is connected to the fixed service tower pipeline. When the inlet side pipeline 3 needs to be docked with the outlet side pipeline 2, firstly, air is supplied to the unlocking chamber of each locking assembly 7 cylinder 71, and the piston rod 711 of each locking assembly 7 cylinder 71 is gradually extended. When the guide column 751 slides to the left half of the guide groove 741, the hook head 75 will swing away from the second flange 31 with the cylinder shaft as the rotation axis. When the piston rod 711 is extended into place, air is kept supplied to the unlocking chamber of each locking assembly 7 cylinder 71; then the driving device 6 drives the support frame 4 to move to the left with the second flange 31, and the driving device 6 is stopped when the second flange 31 contacts the first flange 21; then, air is supplied to the locking chamber of each locking assembly 7 cylinder 71, and each locking assembly 7 cylinder As the piston rod 711 of the locking assembly 71 is gradually retracted, the hook head 75, in conjunction with the guide post 751 and the left half of the guide groove 741, swings toward the second flange 31 and latches onto the left side of the edge of the first flange 21. As the piston rod 711 continues to retract, the hook head 75, in conjunction with the guide post 751 and the right half of the guide groove 741, moves to the right, squeezing the second flange 31 and the first flange 21 tightly together. Once the piston rod 711 is fully retracted, air is continuously supplied to the locking chambers of the cylinders 71 of each locking assembly 7. This completes the docking of the inlet-side pipeline 3 with the outlet-side pipeline 2, allowing cryogenic medium to be transported (refilled or drained) between the mobile launch platform and the fixed service tower. The disconnection process for the inlet-side pipeline 3 and the outlet-side pipeline 2 is the opposite of the docking process and will not be described in detail here. Compared to the prior art, the present invention achieves automatic docking and disconnection between the inlet-side pipeline 3 and the outlet-side pipeline 2 by controlling each locking assembly 7 and the drive device 6. This not only reduces labor intensity and improves work efficiency, but also, during docking, the continuous locking function of the cylinder 71 of each locking assembly 7 effectively compensates for the cold shrinkage of the first flange 21 and the second flange 31 at low temperatures, eliminating the need for manual cold tightening, facilitating unmanned refueling operations and improving safety. Furthermore, by utilizing a curved hose for the inlet-side pipeline 3, the present invention can effectively adapt to the movement and position changes of the second flange 31. The support frame 4 is mounted on the transverse base 11 via a cross-slide mechanism 5, effectively adapting to positional and posture deviations between the second flange 31 and the first flange 21 during docking. By utilizing a bracket and cylinder 71 structure for the locking assembly 7, automatic docking, locking, or unlocking is achieved, ensuring docking reliability. It should be noted that the present invention is not limited to use in cryogenic medium filling pipelines, but can also be used in other cryogenic medium delivery pipelines and normal temperature medium delivery pipelines. In the field of launch vehicle launch, cryogenic medium refers to liquid hydrogen, liquid oxygen, liquid methane, liquid nitrogen, etc. The locking chamber of the cylinder is the chamber into which gas is filled to retract the piston rod, and the unlocking chamber of the cylinder is the chamber into which gas is filled to extend the piston rod.In practical applications, to ensure sealing performance between the first flange 21 and the second flange 31 after docking, the present invention provides a sealing structure between the first flange 21 and the second flange 31. The sealing structure can adopt various forms, such as tongue-and-groove sealing, concave-convex surface sealing, or raised surface sealing. Because the outlet-side pipeline 2 is fixed, it can be equipped with either a hard pipe or a soft pipe. To facilitate connection to the mobile launch platform pipeline, the present invention provides an elbow in the outlet-side pipeline 2 and arranges the left end of the outlet-side pipeline 2 upward. The present invention also provides an inclination angle on the lower left side of the guide plate 74 of the locking assembly 7 to facilitate centering of the guide plate 74 by the first flange 21 during docking.

[0036] As an optimization, this embodiment secures a locking manifold 77 and an unlocking manifold 78 to the second flange 31 between the support frame 4 and the locking assembly 7 via a bracket 76. Locking and unlocking manifolds 771 and 781 are provided on the locking and unlocking manifolds 77 and 78, respectively. The locking and unlocking chamber nozzles 712 and 713 of each cylinder 71 of the locking assembly 7 are connected to the locking and unlocking manifolds 77 and 78, respectively, via air supply pipes 79. This structure, by providing locking and unlocking manifolds 77 and 78, ensures the synchronization of the cylinders 71 of each locking assembly 7, improving the reliability of the docking lock. In practice, the present invention typically provides two symmetrical locking and unlocking manifolds 771 and 781, respectively. The bracket 76 is equipped with a clamp secured to the second flange 31 and multiple L-shaped plates secured to the clamps, thereby securing the locking and unlocking manifolds 77 and 78 via the L-shaped plates. As an optimization solution, this specific embodiment adopts the following structure for the support frame 4: two support components are arranged at intervals, the support component is provided with a rectangular frame 41 and a clamp 42 located in the frame 41 and fixed on the second flange 31, and inclined connecting plates 411 are fixed at the four corners of the frame 41 respectively, and an adjustment device 43 is provided between each connecting plate 411 and the clamp 42 respectively, and the adjustment device 43 is provided with a lifting screw 431 installed on the connecting plate 411, so that the lifting screw 431 A guide cylinder 432 is hingedly connected via a pin. A disc spring 433 and a T-shaped pull rod 434 are disposed within the guide cylinder 432. The disc spring 433 is squeezed between the end plate 4321 of the guide cylinder 432 and the stop plate 4341 of the pull rod 434. The pull rod 434 passes through the disc spring 433 and the end plate 4321 of the guide cylinder 432 and is threadedly mounted with a U-shaped fork 435. The U-shaped fork 435 is hingedly connected to the lug 421 on the clamp 42 via a pin, thereby securing multiple connecting rods 44 between the two support assembly frames 41. This configuration of the support frame 4 features a simple structure, stable support, and easy adjustment. The distance that the pull rod 434 is threaded into the U-shaped fork 435 can be varied by simply rotating the pull rod 434 of each adjustment device 43. By varying the compression and overall length of the disc springs of each adjustment device 43, the position of the second flange 31 within the support frame 4 can be adjusted to meet docking position requirements and ensure docking reliability.

[0037] As a specific embodiment, the present invention adopts the following method for the cross slide mechanism 5: two transverse guide rails 51 are provided and fixed on the transverse base 11, the transverse sliding blocks 52 on the two transverse guide rails 51 are fixed to the transverse frame 53, two longitudinal guide rails 54 are fixed to the transverse frame 53, and the longitudinal sliding blocks 55 on the two longitudinal guide rails 54 are fixedly connected to the support frame 4. The cross slide mechanism 5 with this arrangement has the characteristics of simple structure, low cost and smooth operation. As a specific embodiment, the present invention fixes a table 111 on the transverse base 11 and fixes a support 112 on the table 111, wherein the transverse guide rails 51 are fixed on the table 111, and the driving device 6 is an electric push rod, the left end of the electric push rod is hinged to the support frame 4 through a vertical pin shaft, and the right end of the electric push rod is hinged to the support 112 through a vertical pin shaft. The convenience of structural layout and connection operation is improved by providing the table 111 and the support 112. It should be pointed out that the longitudinal movement function of the cross slide mechanism 5 is set to adapt to a small amount of docking position deviation. In order to ensure that the support frame 4 and the second flange 31 mainly move in the horizontal direction, the present invention sets a certain preload between the right end of the electric push rod and the support 112.

[0038] As a specific embodiment, the present invention provides two first fixing bases on the transverse base 11. The first fixing bases adopt the following structural form: a first bottom plate 113 is bolted to the transverse base 11. A first top plate 115 is fixed to the first bottom plate 113 via four first columns 114. A first curved support 116 is provided on the first top plate 115. The first flange 21 is placed on the first curved support 116. A first curved hoop piece 117 is provided on the upper side of the first flange 21 at a position corresponding to the first curved support 116. The ends of the first curved hoop piece 117 are fixedly connected to the first top plate 115 via first screws 118. This configuration of the first fixing bases features a simple structure and easy assembly and disassembly, ensuring the stability of the first flange 21. As a specific embodiment, to enhance the convenience of connection operations, the present invention provides a third flange 22 at the left end of the outlet pipeline 2 and a fourth flange 32 at the right end of the inlet pipeline 3. A second fixing base is provided on the longitudinal base 12, and the second fixing base has the following structure: a second bottom plate 121 is bolted to the longitudinal base 12, a second top plate 123 is fixed to the second bottom plate 121 via four second columns 122, a second curved support 124 is provided on the second top plate 123, a fourth flange 32 is placed on the second curved support 124, and a second curved hoop piece 125 is provided on the upper side of the fourth flange 32 at a position corresponding to the second curved support 124. The ends of the second curved hoop piece 125 are fixedly connected to the second top plate 123 via second screws 126. This second fixing base arrangement also features a simple structure and easy assembly and disassembly, ensuring the stability of the fourth flange 32. By providing the fourth flange 32 and fixing it to the longitudinal base 12 via the second fixing base, the present invention not only ensures the stability of the inlet-side pipeline 3, but also adapts to positional changes and movement of the second flange 31 by varying the bending radius of the inlet-side pipeline 3. In practical applications, the present invention further secures a transition base 13 at the junction of the transverse base 11 and the longitudinal base 12. Support devices are provided on the transverse base 11, the longitudinal base 12, and the transition base 13, spaced along the inlet-side pipeline 3. The support devices employ the following structure: two vertical support rods 14 are provided, with rollers 15 mounted between the upper ends of the two support rods 14 via a support shaft, allowing the inlet-side pipeline 3 to be horizontally supported on the rollers 15 of each support device. This arrangement effectively reduces friction caused by movement of the inlet-side pipeline 3 through the rollers 15 of each support device, thereby enhancing the adaptability of the inlet-side pipeline 3 to positional changes and movement of the second flange 31. Industrial Applicability

[0039] The automatic docking of low-temperature medium filling pipelines provided by the present invention realizes automatic docking and disconnection between the inlet side pipeline and the outlet side pipeline by controlling each locking component and the driving device, which not only reduces labor intensity and improves work efficiency, but also effectively compensates for the cold shrinkage of the first flange and the second flange at low temperature through the continuous locking function of the cylinder of each locking component during docking, and does not require manual cold tightening, which is conducive to unmanned filling site and improves safety; at the same time, by adopting a curved hose for the inlet side pipeline, it can adapt well to the movement and position change of the second flange, and by adopting a cross slide mechanism to install the support frame on the transverse base, it can adapt well to the position and posture deviation between the second flange and the first flange during docking, and by adopting the structural form of a bracket and a cylinder for the locking component, automatic docking locking or unlocking is realized, and docking reliability is guaranteed.

Claims

1. An automatic docking low-temperature medium filling pipeline, characterized in that: The invention comprises a mounting base (1), an outlet pipeline (2) and an inlet pipeline (3), wherein the mounting base (1) comprises a transverse base (11) and a longitudinal base (12) which are fixedly connected, a first flange (21) being provided at the right end of the outlet pipeline (2), the first flange (21) being horizontally fixed on the transverse base (11), the inlet pipeline (3) being a curved hose and being horizontally supported on the transverse base (11) and the longitudinal base (12), a second flange (31) being provided at the left end of the inlet pipeline (3) and being connected to the first flange (21), a supporting frame (4) being provided on the second flange (31), the supporting frame (4) being mounted on the transverse base (11) through a cross slide rail mechanism (5), a driving device (6) being provided between the right side of the supporting frame (4) and the transverse base (11), a plurality of locking assemblies (6) distributed in the circumferential direction being provided on the second flange (31) on the left side of the supporting frame (4), 7), the locking assembly (7) comprises a bracket and a cylinder (71), the bracket comprises a bracket plate (72) fixed on the second flange (31), two ear plates (73) are provided on the right side of the bracket plate (72), two guide plates (74) are provided on the left side of the bracket plate (72), a guide groove (741) is provided on the guide plate (74), the left half of the guide groove (741) is inclined, and the right half of the guide groove (741) is left-right, the cylinder (71) is located between the two ear plates (73), the two sides of the cylinder body of the cylinder (71) are respectively hinged to the ear plates (73) through a rotating shaft, the piston rod (711) of the cylinder (71) passes through the through hole (721) on the bracket plate (72) and is located between the two guide plates (74), a hook head (75) is fixed on the piston rod (711), and guide columns (751) located in the guide groove (741) are respectively provided on both sides of the hook head (75).

2. The automatic docking low-temperature medium filling pipeline according to claim 1 is characterized in that: A locking gas collecting pipe (77) and an unlocking gas collecting pipe (78) are fixed to the second flange (31) between the support frame (4) and the locking assembly (7) via a bracket (76); a locking pipe joint (771) and an unlocking pipe joint (781) are provided on the locking gas collecting pipe (77) and the unlocking gas collecting pipe (78) respectively; a locking chamber nozzle (712) and an unlocking chamber nozzle (713) of the cylinder (71) of each locking assembly (7) are connected to the locking gas collecting pipe (77) and the unlocking gas collecting pipe (78) respectively via an air supply pipe (79).

3. The automatic docking low-temperature medium filling pipeline according to claim 2 is characterized in that: The support frame (4) comprises two support assemblies arranged at intervals, the support assembly comprising a rectangular frame (41) and a clamp (42) located in the frame (41) and fixed on the second flange (31), four corners of the frame (41) are respectively fixed with inclined connecting plates (411), and an adjusting device (43) is respectively provided between each connecting plate (411) and the clamp (42), the adjusting device (43) comprises a lifting eye screw (431) installed on the connecting plate (411), the lifting eye screw (431) is hinged with a guide cylinder (432) through a pin shaft, and the A disc spring (433) and a T-shaped pull rod (434) are provided in the guide cylinder (432), and the disc spring (433) is squeezed between the end plate (4321) of the guide cylinder (432) and the baffle (4341) of the pull rod (434), and the pull rod (434) passes through the disc spring (433) and the end plate (4321) of the guide cylinder (432) and is threadedly installed with a U-shaped fork (435), and the U-shaped fork (435) is hinged to the support ear (421) on the clamp (42) through a pin shaft, and a plurality of connecting rods (44) are fixed between the frame (41) of the two support assemblies.

4. The automatic docking low-temperature medium filling pipeline according to claim 3 is characterized in that: The cross slide rail mechanism (5) comprises two transverse guide rails (51) fixed on the transverse base (11), the transverse sliding blocks (52) on the two transverse guide rails (51) are fixed with a transverse frame (53), the transverse frame (53) is fixed with two longitudinal guide rails (54), and the longitudinal sliding blocks (55) on the two longitudinal guide rails (54) are fixedly connected to the support frame (4).

5. The automatic docking low-temperature medium filling pipeline according to claim 4 is characterized in that: A tabletop (111) is fixed on the transverse base (11), a support (112) is fixed on the tabletop (111), the transverse guide rail (51) is fixed on the tabletop (111), the driving device (6) is an electric push rod, the left end of the electric push rod is hinged to the support frame (4) through a vertical pin shaft, and the right end of the electric push rod is hinged to the support (112) through a vertical pin shaft.

6. The automatic docking low-temperature medium filling pipeline according to claim 5, characterized in that: Two first fixing seats are provided on the transverse base (11), and the first fixing seats include a first bottom plate (113) fixed to the transverse base (11) by bolts, a first top plate (115) is fixed to the first bottom plate (113) by four first uprights (114), a first arc-shaped support (116) is provided on the first top plate (115), the first flange (21) is located on the first arc-shaped support (116), a first arc-shaped hoop piece (117) is provided on the upper side of the first flange (21) at a position corresponding to the first arc-shaped support (116), and two ends of the first arc-shaped hoop piece (117) are fixedly connected to the first top plate (115) by first screws (118) respectively.

7. The automatic docking low-temperature medium filling pipeline according to claim 5, characterized in that: A third flange (22) is provided at the left end of the outlet side pipeline (2), and a fourth flange (32) is provided at the right end of the inlet side pipeline (3). A second fixing seat is provided on the longitudinal base (12), and the second fixing seat comprises a second bottom plate (121) fixed to the longitudinal base (12) by bolts, a second top plate (123) is fixed to the second bottom plate (121) by four second columns (122), a second arc-shaped support (124) is provided on the second top plate (123), the fourth flange (32) is located on the second arc-shaped support (124), and a second arc-shaped hoop sheet (125) is provided on the upper side of the fourth flange (32) at a position corresponding to the second arc-shaped support (124), and two ends of the second arc-shaped hoop sheet (125) are fixedly connected to the second top plate (123) by second screws (126).

8. The automatic docking low-temperature medium filling pipeline according to claim 5, characterized in that: A transition base (13) is fixed at the connection between the transverse base (11) and the longitudinal base (12); the transverse base (11), the longitudinal base (12) and the transition base (13) are provided with support devices spaced apart along the inlet side pipeline (3); the support devices include two vertical support rods (14); a roller (15) is installed between the upper ends of the two support rods (14) via a support shaft; the inlet side pipeline (3) is horizontally supported on the rollers (15) of each of the support devices.

9. The automatic docking low-temperature medium filling pipeline according to claim 5, characterized in that: A sealing structure is provided between the first flange (21) and the second flange (31), and the sealing structure is a tongue-and-groove seal, a concave-convex surface seal, or a raised surface seal.

10. The automatic docking low-temperature medium filling pipeline according to claim 5, characterized in that: The outlet side pipeline (2) is a hard pipe or a soft pipe provided with an elbow, and the left end of the outlet side pipeline (2) faces upward.

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