Oil gas filling crane pipe

Abstract

The utility model discloses a loading arm for oil gas filling, which relates to the field of oil gas filling and comprises a support and a sealing cover, the sealing cover is provided with a sealing assembly, and the sealing assembly comprises a compression ring, a sealing air bag arranged on the inner wall of the sealing cover and a compression air bag arranged on the top of the sealing cover. The sealing assembly is arranged, and the telescopic pipe is wrapped by the compressed air bag, so that after the bottom end of the telescopic pipe is moved into the sealing cover through the through hole, the compressed air bag can seal the gap between the through hole and the telescopic pipe, and oil gas is prevented from leaking out through the gap between the telescopic pipe and the through hole; meanwhile, when the telescopic pipe moves downwards, the compression ring can be driven to move downwards, the compression ring extrudes the compression air bag, the compression air bag is compressed, air in the compression air bag enters the sealing air bag through the inflation pipe, the sealing air bag is expanded, the sealing air bag can be tightly attached to the oil tank port, a gap between the oil tank port and the sealing cover is eliminated, and the sealing effect is improved. And the sealing performance between the oil tank and the sealing cover is improved, and oil gas leakage is prevented.

Description

Technical Field

[0001] The utility model relates to the field of oil and gas filling, in particular to a crane pipe for oil and gas filling. Background Art

[0002] Crane pipe is a kind of telescopic and movable pipe, which is mostly used for liquid loading and unloading at petroleum and chemical terminals. The media in the pipe are oil, water, etc. It is divided into many types. Compared with the old hose, it has the advantages of high safety and flexibility. In railway and highway loading and unloading of oil, crane pipe is mainly used as special equipment for loading and unloading fluids of railway tank trucks and highway tank trucks.

[0003] According to a Chinese patent with publication number CN216403841U, a fully pneumatic closed crane pipe with oil and gas recovery and heating is disclosed. The utility model starts the sealing mechanism to seal the oil inlet of the tanker, and at the same time the telescopic pipe descends to penetrate the sealing mechanism to the inner cavity of the tanker, and the oil is transported from the telescopic pipe along the long pipe and the short pipe to the inner cavity of the tanker through the oil inlet pipe. Due to the action of the sealing mechanism, the leakage of oil and gas is prevented as much as possible, and the sealing performance is improved.

[0004] With regard to the above-disclosed patent content, a sealing mechanism can be provided to prevent leakage of oil and gas. However, a through hole is provided on the sealing cover so that the telescopic tube can be moved down through the through hole and inserted into the oil tank. After the telescopic tube is moved down and inserted, there will be a gap between the telescopic tube and the through hole, and it is difficult for the sealing mechanism to seal the through hole, resulting in oil and gas easily leaking out through the gap between the through hole and the telescopic tube, thereby reducing the sealing effect of the sealing mechanism. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide a crane pipe for oil and gas filling to solve the technical problem that oil and gas may leak out through the gap between the telescopic tube and the through hole.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a crane pipe for oil and gas filling, comprising a bracket and a cover, the cover is provided with a sealing assembly, and the sealing assembly includes a pressure ring, a sealing airbag arranged on the inner wall of the cover and a compression airbag installed on the top of the cover, a plurality of inflation tubes are connected between the compression airbag and the sealing airbag, one side of the bracket is provided with a bracket side sleeve, and an oil inlet pipe is installed on the bracket side sleeve.

[0007] By adopting the above technical solution, since the compressed airbag wraps the telescopic tube, after the bottom end of the telescopic tube moves into the interior of the cover through the through hole, the compressed airbag can seal the gap between the through hole and the telescopic tube to prevent oil and gas leakage.

[0008] Furthermore, the top end of the oil inlet pipe is connected to a first pipeline via a first rotating joint, and the bottom side of the first pipeline is connected to a second pipeline via a second rotating joint.

[0009] By adopting the above technical solution, the first pipeline can be rotated through the first rotating joint, and the second pipeline can be rotated through the second rotating joint.

[0010] Furthermore, one end of the second pipeline is connected to a vertical pipe via a third rotating joint, and a telescopic pipe is provided inside the vertical pipe.

[0011] By adopting the above technical solution, the telescopic tube can move inside the sleeve tube, and the bottom end of the telescopic tube can be moved into the interior of the sealing cover.

[0012] Furthermore, fixing plates are installed on both sides of the sleeve tube, a second cylinder is provided at the bottom of the fixing plate, and an output end of the second cylinder is connected to the top of the pressure ring through a piston rod.

[0013] By adopting the above technical solution, when the telescopic tube needs to be moved, the user can start the second cylinder, and the operation of the second cylinder can make the piston rod extend and retract, thereby driving the pressure ring to move, and then driving the telescopic tube to move.

[0014] Furthermore, a movable frame is provided on the second rotary joint, a slide groove is provided on the movable frame, and a sliding block is provided inside the slide groove.

[0015] By adopting the above technical solution, when the movable frame moves, it will drive the slider to slide inside the slide groove, thereby facilitating the adjustment of the angle of the second pipe.

[0016] Furthermore, a connecting frame is provided on the sliding block, a first cylinder is installed on the top of the second pipe, and an output end of the first cylinder is hinged to the connecting frame through a piston rod.

[0017] By adopting the above technical solution, when the angle of the second pipe needs to be adjusted, the user can start the first cylinder, and the operation of the first cylinder can cause the piston rod to extend and retract, thereby driving the connecting frame to move.

[0018] Furthermore, a through hole is provided at the middle position of the top of the cover, and the telescopic tube is located directly above the through hole.

[0019] By adopting the above technical solution, when the telescopic tube moves downward, it will pass through the through hole, and the bottom end of the telescopic tube moves into the interior of the sealing cover.

[0020] Furthermore, a spring rod is installed between the pressure ring and the sealing cover, and the pressure ring is sleeved on the outer wall of the telescopic tube.

[0021] By adopting the above technical solution, when the pressure ring moves downward, it will squeeze the spring rod, causing the spring rod to contract, making it easier for the pressure ring to move downward smoothly.

[0022] Furthermore, the compression airbag is in a ring shape, and the plurality of inflation tubes are distributed between the compression airbag and the sealing airbag in a ring array.

[0023] By adopting the above technical solution, when the compressed airbag is squeezed, the air inside it will enter the inflation tube and then enter the sealed airbag, thereby causing the sealed airbag to expand.

[0024] Furthermore, the casing pipe is rotatably connected to the second pipeline via a third rotating joint.

[0025] By adopting the above technical solution, it is convenient for the casing tube to rotate through the third rotating joint so as to fine-tune the angle of the casing tube.

[0026] In summary, the utility model mainly has the following beneficial effects:

[0027] The utility model is provided with a sealing component. Since the compression airbag wraps the telescopic tube, after the bottom end of the telescopic tube moves into the interior of the cover through the through hole, the compression airbag can seal the gap between the through hole and the telescopic tube to prevent oil and gas from leaking out through the gap between the telescopic tube and the through hole. At the same time, when the telescopic tube moves downward, it will drive the pressure ring to move downward, and the pressure ring will squeeze the compression airbag to compress the compression airbag, and the air inside the compression airbag enters into the sealing airbag through the inflation tube, so that the sealing airbag expands, so that the sealing airbag can fit tightly with the oil tank port, eliminate the gap between the oil tank port and the cover, and improve the sealing between the oil tank and the cover to prevent oil and gas from leaking out. In this way, the cover can seal the ports of oil tanks with different diameters, thereby improving the applicability of the sealing component. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0029] Figure 2 It is a schematic diagram of the overall front structure of the utility model;

[0030] Figure 3 This is a schematic diagram of the front cross-section structure of the cover of the utility model;

[0031] Figure 4 This is a schematic diagram of the three-dimensional structure of the cover of the utility model;

[0032] Figure 5 It is a schematic diagram of the three-dimensional partial structure of the sealing airbag of the utility model;

[0033] Figure 6 It is a schematic diagram of the three-dimensional structure of the movable frame of the utility model.

[0034] In the figure: 1. bracket; 2. bracket side sleeve; 3. oil inlet pipe; 4. first rotary joint; 5. first pipeline; 6. solenoid valve; 7. cover; 8. second pipeline; 9. sealing assembly; 901. compression airbag; 902. inflation tube; 903. sealing airbag; 904. pressure ring; 10. second rotary joint; 11. movable frame; 12. slide groove; 13. slider; 14. first cylinder; 15. connecting frame; 16. telescopic tube; 17. vertical tube; 18. fixed plate; 19. second cylinder; 21. through hole; 22. spring rod; 23. third rotary joint. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0036] The following describes an embodiment of the utility model based on its overall structure.

[0037] Embodiment 1:

[0038] A crane pipe for oil and gas filling, such as Figure 1-Figure 6 As shown, it includes a bracket 1 and a cover 7, a sealing assembly 9 is provided on the cover 7, one side of the bracket 1 is provided on the bracket side sleeve 2, an oil inlet pipe 3 is installed on the bracket side sleeve 2, and the sealing assembly 9 includes a pressure ring 904, a sealing airbag 903 provided on the inner wall of the cover 7 and a compression airbag 901 installed on the top of the cover 7. Since the compression airbag 901 wraps the telescopic tube 16, after the bottom end of the telescopic tube 16 moves into the inside of the cover 7 through the through hole 21, the compression airbag 901 can seal the gap between the through hole 21 and the telescopic tube 16 to prevent oil and gas leakage, and multiple inflation tubes 902 are connected between the compression airbag 901 and the sealing airbag 903.

[0039] Specifically, a spring rod 22 is installed between the pressure ring 904 and the cover 7. The pressure ring 904 is sleeved on the outer wall of the telescopic tube 16. When the pressure ring 904 moves downward, it will squeeze the spring rod 22, causing the spring rod 22 to contract, making it easier for the pressure ring 904 to move downward smoothly. The compressed airbag 901 is in a ring shape, and multiple inflation tubes 902 are distributed in a ring array between the compressed airbag 901 and the sealing airbag 903. When the compressed airbag 901 is squeezed, the air inside it will enter the inflation tube 902, and then enter the sealed airbag 903, thereby causing the sealed airbag 903 to expand.

[0040] See also Figure 1-Figure 4The top of the oil inlet pipe 3 is connected to the first pipe 5 through the first rotating joint 4, and the bottom side of the first pipe 5 is connected to the second pipe 8 through the second rotating joint 10, so that the first pipe 5 can rotate through the first rotating joint 4, and the second pipe 8 can rotate through the second rotating joint 10. One end of the second pipe 8 is connected to the vertical pipe 17 through the third rotating joint 23, and the interior of the vertical pipe 17 is provided with a telescopic pipe 16, so that the telescopic pipe 16 can move in the vertical pipe 17, and the bottom end of the telescopic pipe 16 can be moved into the interior of the cover 7.

[0041] See also Figure 1-Figure 4 A fixing plate 18 is installed on both sides of the vertical tube 17, and a second cylinder 19 is provided at the bottom of the fixing plate 18. The output end of the second cylinder 19 is connected to the top of the pressure ring 904 through a piston rod. When the telescopic tube 16 needs to be moved, the user can start the second cylinder 19. The operation of the second cylinder 19 can make the piston rod retract, thereby driving the pressure ring 904 to move, and then driving the telescopic tube 16 to move. A through hole 21 is opened in the middle position of the top of the cover 7, and the telescopic tube 16 is located directly above the through hole 21. When the telescopic tube 16 moves downward, it will pass through the through hole 21, and the bottom end of the telescopic tube 16 moves into the interior of the cover 7. The vertical tube 17 is rotatably connected to the second pipeline 8 through the third rotating joint 23, which facilitates the rotation of the vertical tube 17 through the third rotating joint 23 so that the angle of the vertical tube 17 can be fine-tuned.

[0042] Embodiment 2:

[0043] On the basis of the above-mentioned first embodiment, since the angle of the second pipe 8 needs to be adjusted, the following structure is provided to facilitate the adjustment of the angle of the second pipe 8 .

[0044] See also Figure 1 , Figure 2 and Figure 6 A movable frame 11 is provided on the second rotary joint 10, and a slide groove 12 is provided on the movable frame 11, and a slider 13 is provided inside the slide groove 12. When the movable frame 11 moves, it will drive the slider 13 to slide inside the slide groove 12, so as to facilitate the adjustment of the angle of the second pipe 8. A connecting frame 15 is provided on the slider 13, and a first cylinder 14 is installed on the top of the second pipe 8. The output end of the first cylinder 14 is hinged to the connecting frame 15 through a piston rod. When the angle of the second pipe 8 needs to be adjusted, the user can start the first cylinder 14. The operation of the first cylinder 14 can make the piston rod retract, thereby driving the connecting frame 15 to move.

[0045] The working principle of the utility model is as follows: first, when the angle of the second pipe 8 needs to be fine-tuned, the user can start the first cylinder 14 to extend and retract the piston rod, thereby driving the connecting frame 15 to move, and then driving the slider 13 to slide inside the slide groove 12, so as to fine-tune the angle of the second pipe 8, and the vertical pipe 17 will remain in a vertical state due to its own gravity, so that the telescopic pipe 16 is aligned with the oil inlet of the oil tank;

[0046] When the telescopic tube 16 needs to be moved downward to extend into the oil tank, the user can start the second cylinder 19. The operation of the second cylinder 19 can extend the piston rod, thereby driving the pressure ring 904 to move downward, so that the telescopic tube 16 is inserted into the oil tank. At the same time, the pressure ring 904 squeezes the compression airbag 901, so that the compression airbag 901 is compressed, and the air inside it enters the sealing airbag 903 through the inflation tube 902, so that the sealing airbag 903 expands, so that the sealing airbag 903 can fit tightly with the oil tank port, eliminating the gap between the oil tank port and the cover 7, and facilitating the subsequent refueling of the oil tank.

[0047] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A lifting pipe for oil and gas filling, comprising a bracket (1) and a cover (7), characterized in that: The sealing cover (7) is provided with a sealing assembly (9), and the sealing assembly (9) comprises a pressure ring (904), a sealing airbag (903) provided on the inner wall of the sealing cover (7), and a compression airbag (901) installed on the top of the sealing cover (7), a plurality of inflation tubes (902) are connected between the compression airbag (901) and the sealing airbag (903), and one side of the bracket (1) is provided with a bracket side sleeve (2), and an oil inlet pipe (3) is installed on the bracket side sleeve (2).

2. The oil and gas filling crane according to claim 1 is characterized in that: The top end of the oil inlet pipe (3) is connected to a first pipeline (5) via a first rotating joint (4), and the bottom side of the first pipeline (5) is connected to a second pipeline (8) via a second rotating joint (10).

3. The oil and gas filling crane according to claim 2 is characterized in that: One end of the second pipeline (8) is connected to a vertical pipe (17) via a third rotating joint (23), and a telescopic pipe (16) is provided inside the vertical pipe (17).

4. The oil and gas filling crane according to claim 3 is characterized in that: Fixed plates (18) are installed on both sides of the vertical tube (17), and a second cylinder (19) is provided at the bottom of the fixed plate (18). The output end of the second cylinder (19) is connected to the top of the pressure ring (904) through a piston rod.

5. The oil and gas filling crane according to claim 2 is characterized in that: A movable frame (11) is provided on the second rotary joint (10), a slide groove (12) is provided on the movable frame (11), and a sliding block (13) is provided inside the slide groove (12).

6. The oil and gas filling crane according to claim 5 is characterized in that: A connecting frame (15) is provided on the sliding block (13), a first cylinder (14) is installed on the top of the second pipe (8), and an output end of the first cylinder (14) is hingedly connected to the connecting frame (15) via a piston rod.

7. The oil and gas filling crane according to claim 3 is characterized in that: A through hole (21) is provided at the middle position of the top of the sealing cover (7), and the telescopic tube (16) is located directly above the through hole (21).

8. The oil and gas filling crane according to claim 3 is characterized in that: A spring rod (22) is installed between the pressure ring (904) and the sealing cover (7), and the pressure ring (904) is sleeved on the outer wall of the telescopic tube (16).

9. The oil and gas filling crane according to claim 1, characterized in that: The compressed airbag (901) is in a ring shape, and the plurality of inflation tubes (902) are distributed in a ring array between the compressed airbag (901) and the sealing airbag (903).

10. The oil and gas filling crane according to claim 3, characterized in that: The vertical pipe (17) is rotatably connected to the second pipeline (8) via a third rotating joint (23).

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