Rotating disc type hose ship leaning output system

Abstract

The invention relates to the technical field of marine export equipment, in particular to a rotating disc type hose ship export system which comprises a loading and unloading arm mechanism, an export mechanism installed on the loading and unloading arm mechanism, a coil pipe mechanism installed in the export mechanism and a hose winding and unwinding mechanism arranged on the coil pipe mechanism. The outer conveying mechanism comprises a top protection pipe and a bottom protection pipe, a plurality of annular protection sleeves are evenly installed in an inner cavity of the top protection pipe and an inner cavity of the bottom protection pipe, and a hose is inserted into the evenly-distributed annular protection sleeves. A traditional steel outer pipe with a fixed size is arranged to be an outer conveying mechanism which is spliced and can freely stretch or contract, and after the outer conveying mechanism gets close to the outside of a marine ship till effective butt joint is achieved, a pipe coiling mechanism installed at the bottom of a top protection pipe can be matched with the outer conveying mechanism to provide flexibility enhancing protection for a built-in hose; after the liquid material enters the hose, the hose which is elongated and softened can avoid the problem that the wall of the hose is abraded due to the fact that the liquid material is heavily conveyed.

Description

Technical Field

[0001] This invention relates to the field of marine berthing equipment technology, specifically a rotary hose marine berthing system. Background Technology

[0002] When liquid materials are loaded in the storage tanks of a shipping vessel and need to be transported out, the loading and unloading arm at the outer dock can be adjusted towards the side of the shipping vessel's outgoing pipeline until the outgoing pipeline is connected to the shipping vessel's outgoing pipeline, thus achieving the effective input and output of liquid materials.

[0003] As a crucial piece of equipment between storage tanks and transport vessels, the performance and safety of the dock loading and unloading arm directly affect the storage and transportation efficiency and safety of liquid materials inside the tanks.

[0004] Currently, the outermost dock loading arms still have certain defects in actual use. Since the dock loading arms are composed of rotary joints, booms, hoses, columns, etc., when liquid materials enter the hose and are continuously fed or discharged upwards, the liquid materials will expand the hose due to gravity, which will cause wear on the outer wall of the hose and the steel pipe wall. As the usage time increases, the wear on the outer wall of the hose will also intensify.

[0005] In view of this, a rotary hose ship berthing and export system was designed to solve the above problems. Summary of the Invention

[0006] The present invention aims to solve one of the technical problems existing in the prior art or related technologies.

[0007] Therefore, the technical solution adopted in this invention is as follows: A rotary hook-and-loop berthing system for ship berthing includes a loading / unloading arm mechanism, a berthing mechanism mounted on the loading / unloading arm mechanism, a coiling mechanism installed within the berthing mechanism, and a hook-and-loop retraction mechanism mounted on the coiling mechanism. The berthing mechanism includes a top protective pipe and a bottom protective pipe, with multiple annular sleeves evenly installed within the cavities of the top and bottom protective pipes. The hook-and-loop hose is inserted into the evenly distributed annular sleeves. The coiling mechanism includes two protective cover plates fixedly installed at the bottom end of the top protective pipe, a sealing back plate fixedly installed on the two protective cover plates, and an extended insert movably installed within the two protective cover plates. The sealing backplate is fitted into the groove inside the extended tube. Two clamps are fixedly installed at the bottom of the two protective covers. The shaft is installed inside the two clamps. The take-up roller is fixedly installed outside the shaft. One end of the torsion spring is fixedly installed on the inner wall of the take-up roller, and the other end of the torsion spring is fixedly installed on one of the clamps. The outer shell is set outside the take-up roller. The sealing strip is wound outside the take-up roller, and the outer end of the sealing strip and the bottom end of the extended tube are clamped and fixedly installed at the top of the bottom protective tube. A low-temperature airflow transmission pipe is fixedly installed on the top of the two protective covers.

[0008] In a preferred embodiment, the present invention may be further configured as follows: the loading and unloading arm mechanism includes a lifting rod disposed on an external lifting mechanism, an end plate movably mounted on the top of the lifting rod, an auxiliary rotation bushing mounted inside the end plate, a transmission pipe movably mounted on one end of the auxiliary rotation bushing, and the top of the top protective pipe movably mounted on the other end of the auxiliary rotation bushing. The lifting rod is fixedly mounted with a horizontal clamping rod on its exterior, and the support frame is movably installed inside the clamping rod, with the transmission pipe inserted into the support frame.

[0009] In a preferred embodiment, the present invention may be further configured such that the inner walls of the top and bottom protective tubes are coated with a heat-insulating coating, and a cooling gap is reserved between the top and bottom protective tubes and the hose.

[0010] In a preferred embodiment, the present invention may be further configured such that: the annular sheath has a through hole inside, and the ports at the top and bottom of the annular sheath are arc-shaped, while the annular sheath has evenly distributed ventilation slots inside.

[0011] In a preferred embodiment, the present invention can be further configured as follows: two symmetrically distributed guide wheels are movably installed on the inner wall of the protective cover, two slide bars are fixedly installed on the inner wall of the protective cover, a track frame is fixedly installed in the middle of the inner side of the protective cover, an auxiliary shaft is movably installed on the inner side of the two track frames, two drive wheels are fixedly installed on the outside of the auxiliary shaft, and an auxiliary gear is fixedly installed on the auxiliary shaft.

[0012] In a preferred embodiment, the present invention can be further configured as follows: the coil mechanism further includes two columns, a guide rod is fixedly installed inside the columns, a spring is disposed outside the guide rod, and one end of the spring is fixedly installed on the column, and a stabilizing pad is movably installed outside the guide rod, and the stabilizing pad is adapted to be snapped into the inner side of two adjacent slide bars; The other end of the spring is fixedly mounted on the stabilizing washer.

[0013] In a preferred embodiment, the present invention can be further configured such that the guide rod is T-shaped, and the two guide rods are equally spaced at the top and bottom of the two track frames to enhance the stability of the lateral movement of the two drive wheels.

[0014] In a preferred embodiment, the present invention can be further configured such that: a drawer plate is movably mounted in the middle of the auxiliary shaft, two sets of clamps are fixedly mounted at both ends of the drawer plate, and a linkage shaft is movably mounted in the two sets of clamps; The linkage shaft consists of a beam and two deflection gears, one of which is adapted to mesh with the auxiliary gear.

[0015] In a preferred embodiment, the present invention may be further configured as follows: the hose retraction mechanism includes a slide rail fixedly installed outside one of the protective covers, a base movably installed inside the slide rail, a motor fixedly installed inside the base, a drive gear fixedly installed on the motor and adapted to mesh with another deflection gear, two legs fixedly installed outside the base, and a support plate movably installed inside the two legs. The drawer plate is fixedly installed on the base at one end, which extends through the two protective covers.

[0016] In a preferred embodiment, the present invention may be further configured such that: the hose retraction mechanism further includes two sets of brackets, and the two sets of brackets are fixedly installed on the outside of one of the protective covers, and the two sets of brackets are adapted and aligned with the slide rail, the hydraulic component is fixedly installed inside the two sets of brackets, and the outer end of the hydraulic sub-rod inside the hydraulic component is installed inside the support plate.

[0017] By adopting the above technical solution, the beneficial effects achieved by the present invention are as follows: 1. This invention sets up a spliced ​​and freely extendable or retractable external conveying mechanism by using a traditional fixed-size steel outer tube. As the external conveying mechanism moves towards the outside of the shipping vessel until it is effectively connected, the coil mechanism installed at the bottom of the top protective pipe can work with the external conveying mechanism to provide flexible protection for the built-in hose. As liquid material enters the hose, the extended and flexible hose can avoid the problem of pipe wall wear caused by the weight of the liquid material being transported.

[0018] 2. This invention fixes the top protective pipe to the top of the protective cover plate and uses an extended insertion tube to install the bottom protective pipe at the bottom of the two protective cover plates. When the low-temperature airflow enters the two protective cover plates, the top protective pipe and the bottom protective pipe through the low-temperature airflow transmission pipe, the hose in the taut state can be continuously and efficiently pre-cooled. At the same time, the hose is centrally constrained, thereby preventing the metal pipe from being radiated by the external ambient temperature and thus accelerating the aging of the hose's outer surface.

[0019] 3. The present invention adjusts the length of the extended tube by adjusting the extension tube in conjunction with the sealing strip according to the actual distance between the dock loading arm and the shipping vessel. At this time, the hose with the corresponding relaxation can enhance the flexibility of the liquid material transmission, thereby avoiding abnormal friction caused by the hose being compressed. Attached Figure Description

[0020] Figure 1 This is a schematic diagram illustrating the use of the present invention; Figure 2 This is an exploded view of the loading and unloading arm mechanism of the present invention; Figure 3 This is a cross-sectional schematic diagram of the export mechanism of the present invention; Figure 4 This is an exploded view of the hose retraction mechanism of the present invention; Figure 5 This is an exploded view of the protective cover plate of the present invention; Figure 6 This is an exploded view of the coil mechanism of the present invention; Figure 7 For the present invention Figure 6 A schematic diagram of a partial explosion in the middle; Figure 8 For the present invention Figure 6 Internal diagram; Figure 9 For the present invention Figure 8 Enlarged view of point A in the middle; Figure 10 For the present invention Figure 8 Enlarged diagram of point B in the middle.

[0021] Figure label: 100. Loading / unloading arm mechanism; 110. Lifting boom; 120. Rotational bushing; 130. End plate; 140. Clamping rod; 1401. Support frame; 150. Transmission pipe; 200. Outgoing transport mechanism; 210. Top protective pipe; 220. Bottom protective pipe; 230. Annular sheath; 240. Flexible hose; 300. Coil mechanism; 310. Protective cover plate; 3101. Low-temperature airflow transmission pipe; 320. Sealing back plate; 330. Extended insertion tube; 340. Guide wheel; 350. Clamping plate; 3501. Shaft; 3502. Winding roller; 3503. Sealing strip; 3504. Torsion spring; 3505. Housing; 360. Track frame; 370. Sliding bar; 3701. Column; 3702. Guide rod; 3703. Stabilizing gasket; 3704. Spring; 380. Drawer plate; 3801. Clamp; 3802. Linkage shaft; 3803. Auxiliary shaft; 3804. Drive wheel; 3805. Auxiliary gear; 400. Hose retraction mechanism; 410. Slide rail; 420. Base; 4201. Motor; 4202. Drive gear; 4203. Support leg; 4204. Support plate; 430. Bracket; 440. Hydraulic component. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0023] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the invention.

[0024] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a rotary hose ship berthing and export system. Example 1

[0025] Combination Figures 1 to 10 As shown, the present invention provides a rotary hose ship berthing and external transport system, including a loading and unloading arm mechanism 100, an external transport mechanism 200 installed on the loading and unloading arm mechanism 100, a coil mechanism 300 installed inside the external transport mechanism 200, and a hose retraction and extension mechanism 400 provided on the coil mechanism 300. The loading and unloading arm mechanism 100 is used to provide suspension support for the external transport mechanism 200, the external transport mechanism 200 is used to cooperate with the shipping vessel to transport liquid materials, the coil mechanism 300 is used to provide ambient temperature control for the external transport mechanism 200 before transporting liquid materials, and the hose retraction and extension mechanism 400 is used to enhance the flexibility of the pipeline inside the external transport mechanism 200.

[0026] The loading and unloading arm mechanism 100 includes a lifting rod 110 mounted on an external lifting mechanism, an end plate 130 movably mounted on the top of the lifting rod 110, an auxiliary rotation sleeve 120 mounted inside the end plate 130, a transmission pipe 150 movably mounted on one end of the auxiliary rotation sleeve 120, and the top of the top protection pipe 210 movably mounted on the other end of the auxiliary rotation sleeve 120. A horizontal clamping rod 140 is fixedly installed on the outside of the lifting rod 110, and a support frame 1401 is movably installed inside the clamping rod 140, with the transmission pipe 150 inserted into the support frame 1401. The external conveying mechanism 200 includes a top protective pipe 210 and a bottom protective pipe 220. Multiple annular sleeves 230 are evenly installed in the inner cavities of the top protective pipe 210 and the bottom protective pipe 220. A flexible hose 240 is inserted into the multiple evenly distributed annular sleeves 230. The inner walls of the top protective pipe 210 and the bottom protective pipe 220 are coated with a heat insulation coating, and a cooling gap is reserved between the top protective pipe 210, the bottom protective pipe 220 and the hose 240. The annular sheath 230 has a through hole inside, and the top and bottom ports of the annular sheath 230 have an arc-shaped structure, while the annular sheath 230 has evenly distributed ventilation slots inside. The coiling mechanism 300 includes two protective cover plates 310 fixedly installed at the bottom end of the top protective tube 210, a sealing back plate 320 fixedly installed on the two protective cover plates 310, an extended insertion tube 330 movably installed inside the two protective cover plates 310, and the sealing back plate 320 is adapted to snap into the groove on the inner side of the extended insertion tube 330, two clamping plates 350 respectively fixedly installed at the bottom of the two protective cover plates 310, a shaft 3501 installed inside the two clamping plates 350, and a winding roller. 3502 is fixedly installed on the outside of the shaft 3501. One end of the torsion spring 3504 is fixedly installed on the inner wall of the take-up roller 3502, and the other end of the torsion spring 3504 is fixedly installed on one of the clamping plates 350. The outer shell 3505 is disposed on the outside of the take-up roller 3502. The sealing strip 3503 is wound on the outside of the take-up roller 3502, and the outer end of the sealing strip 3503 and the bottom end of the extended insert 330 are snapped and fixedly installed on the top end of the bottom protective tube 220. Low-temperature airflow transmission pipes 3101 are fixedly installed on the top of the two protective covers 310.

[0027] As the external lifting mechanism, i.e., the lifting boom 110 is lifted to its longest position by the external hydraulic module, the lifting boom 110 is controlled to tilt towards the ship by the external lifting mechanism. Then, the end plate 130, which is movably installed at the top of the lifting boom 110, will adjust the external transmission mechanism 200 to move closer to the ship's external transmission pipeline until the bottom end joint of the bottom protective pipe 220 is connected to the ship's external transmission pipeline. The cryogenic airflow is continuously injected into the inner cavity of the two protective covers 310 through the cryogenic airflow transmission pipe 3101. Under the continuous blowing of the ambient temperature cryogenic airflow, the hose 240, which is constrained and taut, can be subjected to ambient temperature treatment before pre-transferring liquid materials. With the help of multiple evenly distributed annular sleeves 230, the hose 240 after ambient temperature treatment is centrally pressure-bearing. As the liquid material in the storage tank is drawn out by the ambient temperature-treated hose 240, the hose 240, which expands under pressure, will be constrained by multiple annular sleeves 230, thereby avoiding wear between the outer wall of the expanded hose 240 and the inner walls of the protective cover 310, the top protective pipe 210, and the bottom protective pipe 220. The continuously temperature-controlled hose 240 ensures safety during the transport of liquid materials. Based on the flexibility requirements of the hose 240, the length of the bottom protective tube 220 is adjusted using the sealing strip 3503 and the extended insertion tube 330. The sealing back plate 320 is used to seal the groove of the extended insertion tube 330, thereby ensuring that the bottom protective tube 220 of the adjusted length will not leak air. Example 2

[0028] Combination Figures 6 to 9As shown, based on Embodiment 1, the coil mechanism 300 further includes two columns 3701, a guide rod 3702 is fixedly installed inside the column 3701, a spring 3704 is disposed outside the guide rod 3702, and one end of the spring 3704 is fixedly installed on the column 3701. A stabilizing pad 3703 is movably installed outside the guide rod 3702, and the stabilizing pad 3703 is adapted to be snapped into the inner side of two adjacent slide bars 370. The other end of the spring 3704 is fixedly mounted on the stabilizing washer 3703; The guide rod 3702 has an overall T-shaped structure, and the two guide rods 3702 are equally spaced at the top and bottom of the two track frames 360 to enhance the stability of the lateral movement of the two drive wheels 3804; Preferably, there are four slide bars 370. Two adjacent slide bars 370 are used to provide effective support for the lateral sliding of the stabilizing pads 3703, while the arc-shaped end faces of the two stabilizing pads 3703 are used to protect the outer wall of the hose 240 from side bends. Two springs 3704 provide elastic support for the two stabilizing pads 3703. After the hose 240 finishes its external transport operation, the two springs 3704 will apply a compressive force to the side bend of the hose 240, thereby accelerating the rapid emptying of residual material inside the hose 240.

[0029] Two symmetrically distributed guide wheels 340 are movably installed on the inner wall of the protective cover plate 310. Two slide bars 370 are fixedly installed on the inner wall of the protective cover plate 310. The track frame 360 ​​is fixedly installed in the middle of the inner side of the protective cover plate 310. The auxiliary shaft 3803 is movably installed on the inner side of the two track frames 360. Two drive wheels 3804 are fixedly installed on the outside of the auxiliary shaft 3803. The auxiliary gear 3805 is fixedly installed on the auxiliary shaft 3803. A drawer plate 380 is movably installed in the middle of the auxiliary shaft 3803, and two sets of clamps 3801 are fixedly installed at both ends of the drawer plate 380. The linkage shaft 3802 is movably installed in the two sets of clamps 3801. The linkage shaft 3802 consists of a beam and two deflection gears, one of which is adapted to mesh with the auxiliary gear 3805.

[0030] Preferably, the drawer plate 380 is located in the middle of the inner side of the two track frames 360, and the drawer plate 380 is used to provide stabilizing support for the auxiliary shaft 3803 and the two drive wheels 3804. By controlling the lateral movement of the drawer plate 380, the two drive wheels 3804 can be controlled to provide effective assistance to the side bend of the hose 240. When the linkage shaft 3802 is driven and drives the auxiliary gear 3805 and the auxiliary shaft 3803 to rotate, the two drive wheels 3804 can push the hose 240 at a constant speed. With the continuous outward extension of the drawer plate 380, the pushed hose 240 can be flexibly adjusted during the external delivery of liquid materials, thereby avoiding excessive expansion of the hose 240 when the liquid materials enter the hose 240. Example 3

[0031] Combination Figure 3 and 4 As shown, in the above embodiment, the hose retraction mechanism 400 includes a slide rail 410 fixedly installed outside one of the protective covers 310, a base 420 movably installed inside the slide rail 410, a motor 4201 fixedly installed inside the base 420, a drive gear 4202 fixedly installed on the motor 4201, and the drive gear 4202 is adapted to mesh with another deflection gear, two support legs 4203 fixedly installed outside the base 420, and a support plate 4204 movably installed inside the two support legs 4203; The drawer plate 380 extends through one end of the two protective covers 310 and is fixedly mounted on the base 420; The hose retraction mechanism 400 also includes two sets of brackets 430, and the two sets of brackets 430 are fixedly installed on the outside of one of the protective covers 310. The two sets of brackets 430 are adapted and aligned with the slide rail 410. The hydraulic component 440 is fixedly installed inside the two sets of brackets 430, and the outer end of the hydraulic rod inside the hydraulic component 440 is installed inside the support plate 4204.

[0032] Preferably, the back of the slide rail 410 is welded to the middle of the outer side of the protective cover plate 310, and the slide rail 410 has a slide track inside. A slider that is adapted to be snapped into the slide track is fixedly installed on the side of the base 420 facing the slide rail 410. A housing is fixedly installed on the outer end of the base 420, and the motor 4201 is fixed inside the housing and electrically connected to the external control module. When the hydraulic component 440 operates and pushes the pallet 4204, the outrigger 4203 and the base 420 will cause the drawer plate 380 to extend laterally. At this time, the hose 240, which is transporting liquid materials, can be made more flexible under normal temperature pretreatment. By avoiding direct contact between the hose 240 and the metal pipe wall, and continuously inputting low temperature airflow into the metal pipe cavity, the flexibility of the hose 240 is enhanced, and the frictional resistance of the hose 240 is increased due to excessive temperature rise in the metal pipe cavity. This also avoids the problem of accelerated aging caused by the expansion of the transported liquid materials.

[0033] The working principle and usage process of this invention: When a seagoing vessel approaches the top position and needs to carry out external transfer of liquid materials, the lifting rod 110 is pushed up in advance by the external lifting mechanism. As the external lifting mechanism drives the lifting rod 110 to tilt towards the seagoing vessel's external transfer pipe, the joint at the lowest end of the bottom protective pipe 220 is connected to the seagoing vessel's external transfer pipe. Next, an external pipe is connected to the low-temperature airflow transmission pipe 3101, and the low-temperature airflow is input into the inner cavity of the two protective covers 310. With the continuous input of the low-temperature airflow, the cavity after the two protective covers 310, the top protective pipe 210 and the bottom protective pipe 220 are connected can continuously cool down the hose 240 of the built-in structure. The pre-treated hose 240 can then safely transport liquid materials from the ship to the outside, avoiding the problem of pipe bursting due to the temperature difference between the hose 240 and the liquid materials in the ship. Because the structure of the hose 240 after passing through the lowest end of the bottom protective pipe 220 needs to provide an external channel for the liquid material in the storage tank after connecting to the external export pipe of the shipping vessel, as the liquid material enters the hose 240 and is pulled upwards, the hose 240, which is built into the inner cavity of the top protective pipe 210, bottom protective pipe 220, and two protective cover plates 310, will wrinkle under pressure due to the continuous rise of the liquid material. In severe cases, this will increase the wear between the outer wall of the hose 240 and the inner walls of the top protective pipe 210, bottom protective pipe 220, and two protective cover plates 310. Therefore, before transferring the liquid material, the motor 4201 is started via the cloud. The motor 4201, in conjunction with the drive gear 4202, will drive a deflection gear at the outer end of the linkage shaft 3802, while another deflection gear at the inner end of the linkage shaft 3802 will assist the rotation of the auxiliary gear 3. 805, the auxiliary shaft 3803 and the drive wheel 3804, and the side bend of the hose 240 under pressure inside the drive wheel 3804 can be stretched with assistance. At the same time, the hydraulic component 440 is operated until the hydraulic rod inside the hydraulic component 440 pushes the support plate 4204 and the support leg 4203. The base 420 will push the motor 4201 and the drawer plate 380 to move outward laterally as a whole. Finally, while the drive wheel 3804 continues to extend the side bend of the hose 240, it can also provide effective pressure relief protection for the hose 240 after it expands under pressure. This avoids the problem of the hose 240 expanding during the transportation of liquid materials and abrasion with the inner walls of the top protective pipe 210, the bottom protective pipe 220 and the two protective cover plates 310. By enhancing the flexibility of the hose 240, the damage to the materials transported by the hose 240 is reduced. To avoid the extended and increased flexibility of the hose 240 at room temperature during the transport of liquid materials, the extended insert 330 descends synchronously with the bottom protective tube 220. The inner groove of the extended insert 330 descends stably along the sealing back plate 320. At the same time, the sealing strip 3503 connected to the top of the bottom protective tube 220 also adapts and seals with the groove of the extended insert 330. At this time, the extended hose 240 can always be maintained in an effective and sealed room temperature environment. The hose 240 is not affected by the ambient temperature during the transport of liquid materials and expansion, thus ensuring that there is no excessive wear between the hose 240 and the steel pipe wall during the expansion.

[0034] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A rotary hose berthing and outgoing transport system for ships, comprising a loading and unloading arm mechanism (100), characterized in that, It also includes an outgoing transport mechanism (200) installed on the loading and unloading arm mechanism (100), a coil mechanism (300) installed in the outgoing transport mechanism (200), and a hose retraction mechanism (400) provided on the coil mechanism (300). The external delivery mechanism (200) includes a top protective tube (210) and a bottom protective tube (220). Multiple annular sleeves (230) are evenly installed in the inner cavities of the top protective tube (210) and the bottom protective tube (220). A flexible tube (240) is inserted into the evenly distributed multiple annular sleeves (230). The coiling mechanism (300) includes two protective cover plates (310) fixedly installed at the bottom end of the top protective tube (210), a sealing back plate (320) fixedly installed on the two protective cover plates (310), an extended insertion tube (330) movably installed inside the two protective cover plates (310), and the sealing back plate (320) is adapted to snap into the groove on the inner side of the extended insertion tube (330), two clamping plates (350) are respectively fixedly installed at the bottom of the two protective cover plates (310), and a shaft (3501) is installed inside the two clamping plates (350) for winding. Roller (3502) is fixedly installed on the outside of shaft (3501). One end of torsion spring (3504) is fixedly installed on the inner wall of take-up roller (3502), and the other end of torsion spring (3504) is fixedly installed on one of the clamps (350). Outer shell (3505) is set on the outside of take-up roller (3502). Sealing strip (3503) is wound on the outside of take-up roller (3502), and the outer end of sealing strip (3503) and the bottom end of extension tube (330) are snapped and fixedly installed on the top of bottom protective tube (220). The top of the two protective covers (310) is fixedly installed with a cryogenic airflow transmission pipe (3101).

2. The rotary hose ship berthing and export system according to claim 1, characterized in that, The loading and unloading arm mechanism (100) includes a lifting rod (110) mounted on an external lifting mechanism, an end plate (130) movably mounted on the top of the lifting rod (110), an auxiliary rotating bushing (120) mounted inside the end plate (130), a transmission pipe (150) movably mounted on one end of the auxiliary rotating bushing (120), and the top end of the top protective pipe (210) movably mounted on the other end of the auxiliary rotating bushing (120). The lifting rod (110) is fixedly mounted with a horizontal clamping rod (140), the support frame (1401) is movably installed inside the clamping rod (140), and the transmission pipe (150) is inserted into the support frame (1401).

3. The rotary hose ship berthing and export system according to claim 1, characterized in that, The inner walls of the top protective pipe (210) and the bottom protective pipe (220) are coated with a heat-insulating coating, and a cooling gap is reserved between the top protective pipe (210), the bottom protective pipe (220) and the hose (240).

4. The rotary hose ship berthing and export system according to claim 1, characterized in that, The annular sleeve (230) has a through hole inside, and the ports at the top and bottom of the annular sleeve (230) are arc-shaped, while the annular sleeve (230) has evenly distributed ventilation slots inside.

5. A rotary hose ship berthing and export system according to claim 1, characterized in that, The inner wall of the protective cover (310) is movably equipped with two symmetrically distributed guide wheels (340), two slide bars (370) are fixedly installed on the inner wall of the protective cover (310), the track frame (360) is fixedly installed in the middle of the inner side of the protective cover (310), the auxiliary shaft (3803) is movably installed on the inner side of the two track frames (360), two drive wheels (3804) are fixedly installed on the outside of the auxiliary shaft (3803), and the auxiliary gear (3805) is fixedly installed on the auxiliary shaft (3803).

6. A rotary hose ship berthing and export system according to claim 5, characterized in that, The coil mechanism (300) also includes two columns (3701), a guide rod (3702) is fixedly installed inside the column (3701), a spring (3704) is set outside the guide rod (3702), and one end of the spring (3704) is fixedly installed on the column (3701). A stabilizing pad (3703) is movably installed outside the guide rod (3702), and the stabilizing pad (3703) is adapted to be snapped into the inner side of two adjacent slide bars (370). The other end of the spring (3704) is fixedly mounted on the stabilizing washer (3703).

7. A rotary hose ship berthing and export system according to claim 6, characterized in that, The guide rod (3702) has an overall T-shaped structure, and the two guide rods (3702) are equally spaced at the top and bottom of the two track frames (360) to enhance the stability of the lateral movement of the two drive wheels (3804).

8. A rotary hose ship berthing and export system according to claim 5, characterized in that, A drawer plate (380) is movably installed in the middle of the auxiliary shaft (3803), two sets of clamps (3801) are fixedly installed at both ends of the drawer plate (380), and the linkage shaft (3802) is movably installed in the two sets of clamps (3801); The linkage shaft (3802) consists of a beam and two deflection gears, one of which is adapted to mesh with the auxiliary gear (3805).

9. A rotary hose ship berthing and export system according to claim 8, characterized in that, The hose retraction mechanism (400) includes a slide rail (410) fixedly installed outside one of the protective covers (310), a base (420) movably installed inside the slide rail (410), a motor (4201) fixedly installed inside the base (420), a drive gear (4202) fixedly installed on the motor (4201), and the drive gear (4202) is adapted to mesh with another deflection gear, two support legs (4203) fixedly installed outside the base (420), and a support plate (4204) movably installed inside the two support legs (4203); The drawer plate (380) is fixedly mounted on the base (420) at one end, which extends through the outside of the two protective covers (310).

10. A rotary hose ship berthing and export system according to claim 1, characterized in that, The hose retraction mechanism (400) also includes two sets of brackets (430), and the two sets of brackets (430) are fixedly installed on the outside of one of the protective covers (310). The two sets of brackets (430) are adapted and aligned with the slide rail (410). The hydraulic component (440) is fixedly installed inside the two sets of brackets (430), and the outer end of the hydraulic sub-rod inside the hydraulic component (440) is installed inside the support plate (4204).

Images