Locking type sealing device for loading arm

Abstract

The utility model discloses a loading arm locking type sealing device which comprises a sealing valve, the sealing valve is installed at the upper end of an oil tank, an oil filling pipe is installed at the upper end of the sealing valve, a telescopic loading arm is arranged above the oil filling pipe, a guide mechanism is arranged at the upper end of the oil filling pipe, and a sealing mechanism is arranged on the oil filling pipe. The guide mechanism comprises a flexible pipeline, a rigid pipeline, a limiting frame and a funnel-shaped guide pipe; the sealing mechanism comprises a first sealing flange plate, a second sealing flange plate and a locking piece. The rigid pipeline locking device has the advantages that the rigid pipeline can be limited and supported through the limiting frame, when the crane pipe moves downwards, the funnel-shaped guide pipe can guide the rigid pipeline and drive the rigid pipeline to move, the rigid pipeline can move to the position under the crane pipe, then the two sealing flange plates can be locked through the locking pieces, and therefore the rigid pipeline can be locked through the locking pieces. Air leakage can be prevented, and use is safer.

Description

Technical Field

[0001] The utility model relates to the technical field of crane pipe sealing equipment, and more specifically to a crane pipe locking sealing device. Background Art

[0002] At present, manual swing arm crane submersible oil pump unloading or vacuum unloading is often used in the unloading operation of volatile oil products such as gasoline and diesel from railway tank cars. Due to the vaporization and cavitation phenomena in vacuum unloading, there are certain limitations in the use of vacuum unloading. Therefore, most of them use manual swing arm crane submersible oil pump unloading method, and sealing devices are required to seal the tank car port during unloading operations to prevent oil and gas leakage, thereby ensuring the health of unloading operators and the safety of unloading operations.

[0003] In the prior art, when connecting the crane pipe to the oil tank, since the parking position of the oil tanker is generally not fixed, the oil inlet pipe of the oil tank is not moved exactly under the crane pipe. Although the crane pipe is movable, the movement accuracy is not high, and the staff needs to connect the two and then lock them, which is inconvenient to use.

[0004] It should be noted that the above contents belong to the technical knowledge of the inventor and do not necessarily constitute prior art. Utility Model Content

[0005] The utility model aims to solve the above problems and designs a crane pipe locking type sealing device.

[0006] The technical solution of the utility model to achieve the above-mentioned purpose is a crane pipe locking sealing device, comprising a sealing valve, the sealing valve is installed on the upper end of the oil tank, a refueling pipe is installed on the upper end of the sealing valve, a retractable crane pipe is arranged above the refueling pipe, a guide mechanism is arranged on the upper end of the refueling pipe, and a sealing mechanism is arranged on the refueling pipe;

[0007] The guide mechanism comprises a flexible pipe installed on the upper end of the refueling pipe, a rigid pipe is installed on the upper end of the flexible pipe, a limiting frame is installed on the upper end of the refueling pipe, the limiting frame can support and limit the rigid pipe, and a funnel-shaped guide pipe is installed on the upper end of the rigid pipe;

[0008] The sealing mechanism includes a first sealing flange installed at the upper end of the rigid pipe, the first sealing flange is located on the inner side of the funnel-shaped guide tube, a second sealing flange is installed at the lower end of the crane tube, and a locking piece is installed at the lower end of the funnel-shaped guide tube, and the locking piece can lock the first sealing flange and the second sealing flange.

[0009] Furthermore, the limit frame includes a movable plate installed on the outside of the rigid pipe, a circular plate is provided below the movable plate, the circular plate is sleeved on the outside of the rigid pipe, the circular plate is installed on the refueling pipe through a plurality of L-shaped support rods, and a plurality of first universal ball bearings are installed at the lower end of the movable plate.

[0010] Furthermore, a circular sealing gasket is installed at the upper end of the funnel-shaped guide tube, and a cover plate is installed at the lower end of the crane tube.

[0011] Furthermore, the locking member includes a plurality of electric telescopic rods installed at the lower end of the funnel-shaped guide tube, a plurality of through holes are opened at the lower end of the funnel-shaped guide tube, a clamping plate is installed at the telescopic end of the electric telescopic rod, a pulley is installed at the lower end of the clamping plate, and the pulley can pass through the through hole, and there is an angle of 1-5 degrees between the telescopic direction of the electric telescopic rod and the upper end of the second sealing flange.

[0012] Furthermore, a plurality of second universal ball bearings are installed on the outer side of the second sealing flange.

[0013] The beneficial effects of the utility model are as follows: the rigid pipe can be limited and supported by the limiting frame, and when the crane pipe moves downward, the funnel-shaped guide pipe can be guided and drive the rigid pipe to move, so that the rigid pipe can be moved directly below the crane pipe, and then the two sealing flanges can be locked by the locking piece to prevent air leakage, which is safer to use;

[0014] The ring seal can be pressed by the cover plate, double sealing, better effect;

[0015] The pulley can be driven to move by the obliquely installed electric telescopic rod, and then the sealing flange can be pressed tightly by the pulley. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a crane pipe locking sealing device described in the utility model;

[0017] Figure 2 yes Figure 1 A partial enlarged view of the middle A;

[0018] In the figure, 1. sealing valve; 2. refueling pipe; 3. crane pipe; 4. flexible pipe; 5. rigid pipe; 6. limit frame; 7. funnel-shaped guide pipe; 8. first sealing flange; 9. second sealing flange; 10. locking piece; 11. moving plate; 12. circular ring plate; 13. L-shaped support rod; 14. first universal ball; 15. circular ring gasket; 16. cover plate; 17. electric telescopic rod; 18. through hole; 19. clamping plate; 20. pulley; 21. universal ball. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0021] The utility model provides Figure 1-2 A lifting pipe locking sealing device shown in the figure comprises a sealing valve 1, the sealing valve 1 is mounted on the upper end of the oil tank, a filling pipe 2 is mounted on the upper end of the sealing valve 1, a retractable lifting pipe 3 is arranged above the filling pipe 2, a guiding mechanism is arranged on the upper end of the filling pipe 2, and a sealing mechanism is arranged on the filling pipe 2; the guiding mechanism comprises a flexible pipe 4 mounted on the upper end of the filling pipe 2, a rigid pipe 5 is mounted on the upper end of the flexible pipe 4, a limiting frame 6 is mounted on the upper end of the filling pipe 2, the limiting frame 6 can support and limit the rigid pipe 5, and a funnel-shaped guiding pipe 7 is mounted on the upper end of the rigid pipe 5; the sealing mechanism comprises a first sealing flange 8 mounted on the upper end of the rigid pipe 5, the first sealing flange 8 is located on the inner side of the funnel-shaped guiding pipe 7, a second sealing flange 9 is mounted on the lower end of the lifting pipe 3, a locking member 10 is mounted on the lower end of the funnel-shaped guiding pipe 7, and the locking member 10 can lock the first sealing flange 8 and the second sealing flange 9;

[0022] The process of sealing the crane pipe and the oil tank connection by this device is as follows: the oil driver moves the oil tanker to the bottom of the crane pipe 3, and the crane pipe 3 can be extended to the lower end of the crane pipe 3 through the expansion and contraction of the crane pipe 3. When the outer side of the second sealing flange 9 at the lower end of the crane pipe 3 hits the inner wall of the funnel-shaped guide tube 7, the funnel-shaped guide tube 7 and the rigid pipe 5 can be moved, and the limit frame 6 can support the rigid pipe 5. When the rigid pipe 5 moves, the flexible pipe 4 can facilitate the movement of the rigid pipe 5. When the rigid pipe 5 moves to the position corresponding to the concentricity of the crane pipe 3, the rigid pipe 5 will not move anymore, and then the second sealing flange 9 can be covered on the first sealing flange 8, and the first sealing flange 8 and the second sealing flange 9 are locked by the locking piece 10, and then the sealing valve 1 and the crane pipe 3 are opened to refuel. The sealing of the first sealing flange 8 and the second sealing flange 9 can prevent oil and gas from leaking.

[0023] Refer to the instruction manual Figure 1 And the instruction manual Figure 2 The limit frame 6 includes a movable plate 11 installed on the outside of the rigid pipe 5, a circular plate 12 is provided below the movable plate 11, the circular plate 12 is sleeved on the outside of the rigid pipe 5, the circular plate 12 is installed on the refueling pipe 2 through a plurality of L-shaped support rods 13, and a plurality of first universal balls 14 are installed at the lower end of the movable plate 11;

[0024] The process of supporting and limiting the rigid pipe 5 by the limiting frame 6 is as follows: under normal conditions, the movable plate 11 is placed on the circular plate 12 through the first universal ball 14, and the movable plate 11 and the rigid pipe 5 can be supported by the circular plate 12, and because the circular plate 12 is mounted on the outside of the rigid pipe 5, the rigid pipe 5 can be limited.

[0025] Refer to the instruction manual Figure 1 A circular sealing gasket 15 is installed at the upper end of the funnel-shaped guide tube 7, and a cover plate 16 is installed at the lower end of the crane tube 3. When the second sealing flange 9 is covered on the first sealing flange 8, the cover plate 16 can be covered on the circular sealing gasket 15, thereby achieving double sealing and better sealing effect.

[0026] Refer to the instruction manual Figure 1 And the instruction manual Figure 2 The locking member 10 includes a plurality of electric telescopic rods 17 installed at the lower end of the funnel-shaped guide tube 7, a plurality of through holes 18 are opened at the lower end of the funnel-shaped guide tube 7, a pressing plate 19 is installed at the telescopic end of the electric telescopic rod 17, a pulley 20 is installed at the lower end of the pressing plate 19, and the pulley 20 can pass through the through hole 18, and the telescopic direction of the electric telescopic rod 17 and the upper end of the second sealing flange 9 have an angle of 1-5 degrees;

[0027] The process of locking the first sealing flange 8 and the second sealing flange 9 by the locking member 10 is as follows: when the second sealing flange 9 covers the upper end of the first sealing flange 8, the electric telescopic rod 17 is started to extend, and the electric telescopic rod 17 can push the pressing plate 19 and the pulley 20, and make the pulley 20 pass through the through hole 18 and extend to the upper end of the second sealing flange 9. Since the electric telescopic rod 17 is placed at an angle, the pulley 20 can be pressed downward as the electric telescopic rod 17 extends, so that the second sealing flange 9 and the first sealing flange 8 can fit more closely.

[0028] Refer to the instruction manual Figure 1 And the instruction manual Figure 2 A plurality of second universal balls 21 are installed on the outer side of the second sealing flange 9 to reduce the friction between the second sealing flange 9 and the funnel-shaped guide tube 7 when the second sealing flange 9 moves.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pump pipe locking sealing device, comprising a sealing valve (1), the sealing valve (1) being mounted on the upper end of an oil tank, a refueling pipe (2) being mounted on the upper end of the sealing valve (1), a retractable pump pipe (3) being arranged above the refueling pipe (2), It is characterized in that A guide mechanism is provided at the upper end of the refueling pipe (2), and a sealing mechanism is provided on the refueling pipe (2); The guide mechanism comprises a flexible pipe (4) mounted on the upper end of the refueling pipe (2), a rigid pipe (5) being mounted on the upper end of the flexible pipe (4), a limiting frame (6) being mounted on the upper end of the refueling pipe (2), the limiting frame (6) being capable of supporting and limiting the position of the rigid pipe (5), and a funnel-shaped guide pipe (7) being mounted on the upper end of the rigid pipe (5); The sealing mechanism comprises a first sealing flange (8) mounted on the upper end of the rigid pipe (5), the first sealing flange (8) being located inside the funnel-shaped guide tube (7), a second sealing flange (9) being mounted on the lower end of the crane tube (3), and a locking member (10) being mounted on the lower end of the funnel-shaped guide tube (7), the locking member (10) being capable of locking the first sealing flange (8) and the second sealing flange (9).

2. A crane pipe locking sealing device according to claim 1, It is characterized in that The limiting frame (6) comprises a movable plate (11) mounted on the outside of the rigid pipe (5), a circular plate (12) being provided below the movable plate (11), the circular plate (12) being sleeved on the outside of the rigid pipe (5), the circular plate (12) being mounted on the refueling pipe (2) via a plurality of L-shaped support rods (13), and a plurality of first universal balls (14) being mounted on the lower end of the movable plate (11).

3. A crane pipe locking sealing device according to claim 2, It is characterized in that A circular sealing gasket (15) is installed at the upper end of the funnel-shaped guide tube (7), and a cover plate (16) is installed at the lower end of the crane tube (3).

4. A crane pipe locking sealing device according to claim 1, It is characterized in that The locking member (10) comprises a plurality of electric telescopic rods (17) mounted at the lower end of a funnel-shaped guide tube (7), a plurality of through holes (18) being formed at the lower end of the funnel-shaped guide tube (7), a clamping plate (19) being mounted at the telescopic end of the electric telescopic rod (17), a pulley (20) being mounted at the lower end of the clamping plate (19), the pulley (20) being able to pass through the through hole (18), and an angle of 1-5 degrees between the telescopic direction of the electric telescopic rod (17) and the upper end of the second sealing flange (9).

5. A crane pipe locking sealing device according to claim 1, It is characterized in that A plurality of second universal balls (21) are mounted on the outer side of the second sealing flange (9).

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