Loading arm sealing device

Abstract

The utility model provides a loading arm sealing device, and relates to the technical field of loading arm sealing. The loading crane pipe sealing device comprises a storage barrel and a plurality of conveying pipes, the storage barrel is located on one side of the conveying pipes and fixedly communicated with the adjacent conveying pipes, an inner conical barrel and an outer conical barrel are arranged between every two adjacent conveying pipes, the outer conical barrels are slidably connected to the outer surfaces of the inner conical barrels in a sleeving mode, and the conveying pipes are arranged in the storage barrel. And one ends, far away from each other, of the inner conical cylinder and the outer conical cylinder are respectively fixed with two adjacent conveying pipes. According to the loading arm sealing device, the inner conical cylinder, the outer conical cylinder, the movable cylinder, the air inlet pipe and the sleeve are arranged, air flow is inflated into the closed space between the movable cylinder and the sleeve through the air inlet pipe, and the air flow is blown into the conveying pipe from a gap in the connecting position between the inner conical cylinder and the outer conical cylinder, so that air flow pressure exists between the inner conical cylinder and the outer conical cylinder; and liquid in the conveying pipe cannot leak from the space between the inner conical cylinder and the outer conical cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of loading crane pipe sealing, in particular to a loading crane pipe sealing device. Background Art

[0002] The crane pipe is a telescopic and movable pipe, which is mainly used to transport liquid media. It is now widely used in liquid loading and unloading work in the petroleum and chemical terminal industries. It has many types, is flexible to use, and has high safety. The crane pipe is a special equipment in the fluid loading and unloading process of the petrochemical industry, also known as a fluid loading and unloading arm. It uses a rotating joint to connect with rigid pipes and elbows to realize the mobile equipment of transmitting liquid media between trains, tank cars and trestle storage and transportation pipelines.

[0003] When the crane pipe is in use, in order to adapt to different working environments, the component pipes of the crane pipe need to rotate relatively so that the position of the discharge port can be changed. However, the rotating parts between the pipes are rotatable, which easily causes internal liquid to leak out from the rotating parts. Most of the existing technologies are sealed by sealing gaskets, which will cause wear as the use time increases, and easily cause internal liquid leakage. For this reason, a loading crane pipe sealing device is proposed. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a loading crane pipe sealing device, which solves the problem that leakage is prone to occur at the rotating connection of the pipeline.

[0006] (II) Technical solution

[0007] To achieve the above purpose, the utility model is implemented through the following technical solutions: a loading crane pipe sealing device, including a storage cylinder and a plurality of conveying pipes, the storage cylinder is located on one side of the plurality of conveying pipes, the storage cylinder is fixedly connected to the adjacent conveying pipes, an inner cone cylinder and an outer cone cylinder are arranged between each two adjacent conveying pipes, the outer cone cylinder is slidably sleeved on the outer surface of the inner cone cylinder, the ends of the inner cone cylinder and the outer cone cylinder away from each other are respectively fixed to the two adjacent conveying pipes, an end of the outer cone cylinder located outside the connected conveying pipe is installed with an air pressure sealing connection structure, the other end of the air pressure sealing connection structure is connected to another adjacent conveying pipe, and each two adjacent air pressure sealing connection structures are connected by a hose.

[0008] Preferably, the pneumatic closed connection structure includes two swivels, a movable cylinder and a sleeve. The two swivels are rotatably sleeved on the outer surfaces of the delivery pipe and the adjacent outer cone cylinder, the sleeve is slidably sleeved on one end of the movable cylinder, the sleeve is rotatably sleeved on the outer surface of the adjacent delivery pipe, the sleeve is rotatably sleeved on the outer surface of the outer cone cylinder, the end of the movable cylinder away from the connected sleeve is fixedly connected with an air inlet pipe, the end of the sleeve away from the movable cylinder is fixedly connected with an air outlet pipe, the other end of the air outlet pipe is fixedly connected to the adjacent hose, and the movable cylinder and the connected sleeve are detachably connected by a bolt rod.

[0009] Preferably, a reel is slidably sleeved on the outer surface of the hose, one end of the reel is elastically rotatably connected to a torsion ring, and the torsion ring is rotatably sleeved on the outer surface of an adjacent delivery pipe.

[0010] Preferably, a detachable air pump is installed at one end of the air inlet pipe adjacent to the storage cylinder and away from the connected movable cylinder, and a pressure valve is installed at one end of the air outlet pipe farthest from the storage cylinder and away from the connected sleeve.

[0011] Preferably, the outer annular surface of the inner conical cylinder and the inner annular surface of the outer conical cylinder are both conical, and the inner conical cylinder and the outer conical cylinder are coaxially arranged.

[0012] Preferably, the inner ring surface of the outer cone is rotatably inlaid with balls, and the balls are in rolling contact with the outer ring surface of the inner cone.

[0013] Preferably, one end of the sleeve close to the adjacent movable cylinder is a convex structure, and the inner diameter of the convex structure of the sleeve is smaller than the outer diameter of the rotating ring.

[0014] (III) Beneficial effects

[0015] The utility model provides a loading crane pipe sealing device, which has the following beneficial effects:

[0016] 1. The loading crane pipe sealing device is provided with an inner cone, an outer cone, a movable cylinder, an air inlet pipe and a sleeve. The connection between the inner cone and the outer cone is closed through the movable cylinder, the sleeve and two rotating rings. Air flow is filled into the closed space between the movable cylinder and the sleeve through the air inlet pipe. The air flow is blown into the conveying pipe from the gap at the connection between the inner cone and the outer cone, so that air flow pressure exists between the inner cone and the outer cone. When the inner cone and the outer cone can rotate relatively, the liquid inside the conveying pipe will not leak out from between the inner cone and the outer cone.

[0017] 2. The loading crane pipe sealing device is provided with a twist ring and a winding wheel. When in use, the winding wheel elastically connected to the twist ring winds the hose around the winding wheel surface by twisting, so that the hose is in a taut state, preventing the loose hose from swinging around and affecting the rotation of the conveying pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the connection between the air outlet pipe and the pressure valve of the utility model;

[0020] Figure 3 This is a schematic diagram of the connection between the winding wheel and the rotating ring of the utility model;

[0021] Figure 4 This is a schematic diagram of the connection between the inner cone and the outer cone of the utility model;

[0022] Figure 5 It is a schematic diagram of the partial structure of the utility model;

[0023] Figure 6 For this utility model Figure 4 A schematic diagram of the enlarged structure in the middle.

[0024] In the figure: 1. storage cylinder; 2. delivery pipe; 3. outer cone cylinder; 4. inner cone cylinder; 5. air pressure closed connection structure; 51. swivel; 52. movable cylinder; 53. sleeve; 54. air inlet pipe; 55. air outlet pipe; 6. hose; 7. winding wheel; 8. twist ring; 9. pressure valve; 10. air pump; 11. ball bearing. DETAILED DESCRIPTION

[0025] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0026] The utility model embodiment provides a loading crane pipe sealing device, such as Figure 1-6As shown, it includes a storage cylinder 1 and a plurality of delivery tubes 2. The storage cylinder 1 stores liquid. The storage cylinder 1 is located on one side of the plurality of delivery tubes 2. The storage cylinder 1 is fixedly connected to the adjacent delivery tubes 2. An inner cone 4 and an outer cone 3 are arranged between each two adjacent delivery tubes 2. The outer annular surface of the inner cone 4 and the inner annular surface of the outer cone 3 are both conical. The inner cone 4 and the outer cone 3 are coaxially arranged. The conical gap formed between the inner cone 4 and the outer cone 3 faces the flow direction of the liquid, which effectively reduces the impact of the liquid on the gap between the inner cone 4 and the outer cone 3, and effectively prevents liquid leakage. The inner annular surface of the outer cone 3 is rotatably inlaid with balls 11, and the balls 11 are in rolling contact with the outer annular surface of the inner cone 4. When the adjacent delivery tubes 2 rotate relatively, the balls 11 roll on the outer annular surface of the inner cone 4, reducing the outer The outer cone 3 is slidably sleeved on the outer surface of the inner cone 4, and the ends of the inner cone 4 and the outer cone 3 that are away from each other are respectively fixed to two adjacent conveying pipes 2. An air pressure sealing connection structure 5 is installed at one end of the outer cone 3 located outside the connected conveying pipe 2. The other end of the air pressure sealing connection structure 5 is connected to another adjacent conveying pipe 2. Each two adjacent air pressure sealing connection structures 5 are connected through a hose 6. A winding wheel 7 is slidably sleeved on the outer surface of the hose 6. A torsion ring 8 is elastically rotatably connected to one end of the winding wheel 7. The torsion ring 8 is rotatably sleeved on the outer surface of the adjacent conveying pipe 2. The elastically rotatably connected winding wheel 7 has a tendency to wrap around the hose 6, so that the hose 6 is in a taut state to prevent the loose hose 6 from swinging around.

[0027] The air pressure sealing connection structure 5 includes two rotating rings 51, a movable cylinder 52 and a sleeve 53. The two rotating rings 51 are rotatably sleeved on the outer surfaces of the delivery pipe 2 and the adjacent outer cone cylinder 3. The sleeve 53 is slidably sleeved on one end of the movable cylinder 52. The sleeve 53 is rotatably sleeved on the outer surface of the adjacent delivery pipe 2. The sleeve 53 is rotatably sleeved on the outer surface of the outer cone cylinder 3. The end of the movable cylinder 52 away from the connected sleeve 53 is fixedly plugged with an air inlet pipe 54. The end of the sleeve 53 close to the adjacent movable cylinder 52 is a convex structure. The inner diameter of the protruding structure 53 is smaller than the outer diameter of the swivel 51. When the sleeve 53 and the movable cylinder 52 approach each other, the two swivels 51 between them are pushed to approach each other, so that the inner cone cylinder 4 and the outer cone cylinder 3 are connected together. The end of the sleeve 53 away from the movable cylinder 52 is fixedly connected with an air outlet pipe 55, and the other end of the air outlet pipe 55 is fixedly connected to the adjacent hose 6. The movable cylinder 52 and the connected sleeve 53 are detachably connected by a bolt rod, and the distance between the movable cylinder 52 and the sleeve 53 can be changed by rotating the threaded rod.

[0028] A detachable air pump 10 is installed at one end of the air inlet pipe 54 adjacent to the storage cylinder 1, which is away from the connected movable cylinder 52. Air can be supplied to the connected air inlet pipe 54 through the air pump 10. A pressure valve 9 is installed at one end of the air outlet pipe 55 which is farthest from the storage cylinder 1 and is away from the connected sleeve 53. After the pressure in the closed space between the movable cylinder 52 and the sleeve 53 reaches a certain level, the pressure valve 9 can detect the pressure and open to relieve the internal pressure.

[0029] Working principle: The movable cylinder 52 and the sleeve 53 are installed by bolt rods. When the movable cylinder 52 and the sleeve 53 are close to each other, the two rotating rings 51 are pushed to push the outer surface of the inner cone cylinder 4 to contact the inner ring surface of the outer cone cylinder 3. The air flow is filled into the closed space between the movable cylinder 52 and the sleeve 53 through the air pump 10. The air flow is blown into the delivery pipe 2 from the gap at the connection between the inner cone cylinder 4 and the outer cone cylinder 3, so that there is air flow pressure between the inner cone cylinder 4 and the outer cone cylinder 3. The liquid inside the delivery pipe 2 will not leak from between the inner cone cylinder 4 and the outer cone cylinder 3. At the same time, the air flow is filled into the closed space between the next movable cylinder 52 and the sleeve 53 through the hose 6. When the air pressure in the closed space between the movable cylinder 52 and the sleeve 53 reaches a certain pressure, the pressure valve 9 opens to relieve the internal pressure.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A loading crane pipe sealing device, comprising a storage cylinder (1) and a plurality of conveying pipes (2), characterized in that: The storage cylinder (1) is located on one side of a plurality of conveying pipes (2). The storage cylinder (1) is fixedly connected to the adjacent conveying pipes (2). An inner cone cylinder (4) and an outer cone cylinder (3) are arranged between each two adjacent conveying pipes (2). The outer cone cylinder (3) is slidably sleeved on the outer surface of the inner cone cylinder (4). The ends of the inner cone cylinder (4) and the outer cone cylinder (3) that are away from each other are respectively fixed to the two adjacent conveying pipes (2). An end of the outer cone cylinder (3) located outside the connected conveying pipe (2) is provided with a gas pressure sealing connection structure (5). The other end of the gas pressure sealing connection structure (5) is connected to another adjacent conveying pipe (2). Each two adjacent gas pressure sealing connection structures (5) are connected via a hose (6).

2. A loading crane pipe sealing device according to claim 1, characterized in that: The air pressure sealing connection structure (5) comprises two rotating rings (51), a movable cylinder (52) and a sleeve (53). The two rotating rings (51) are rotatably sleeved on the outer surfaces of the delivery pipe (2) and the adjacent outer cone cylinder (3). The sleeve (53) is slidably sleeved on one end of the movable cylinder (52). The sleeve (53) is rotatably sleeved on the outer surface of the adjacent delivery pipe (2). The sleeve (53) is rotatably sleeved on the outer surface of the outer cone cylinder (3). An air inlet pipe (54) is fixedly inserted at one end of the movable cylinder (52) away from the connected sleeve (53). An air outlet pipe (55) is fixedly inserted at one end of the sleeve (53) away from the movable cylinder (52). The other end of the air outlet pipe (55) is fixedly connected to the adjacent hose (6). The movable cylinder (52) and the connected sleeve (53) are detachably connected via a bolt rod.

3. A loading crane pipe sealing device according to claim 1, characterized in that: The outer surface of the hose (6) is slidably sleeved with a reel (7), one end of the reel (7) is elastically rotatably connected with a torsion ring (8), and the torsion ring (8) is rotatably sleeved on the outer surface of the adjacent conveying pipe (2).

4. A loading crane pipe sealing device according to claim 2, characterized in that: A detachable air pump (10) is installed at one end of the air inlet pipe (54) adjacent to the storage cylinder (1) and away from the connected movable cylinder (52), and a pressure valve (9) is installed at one end of the air outlet pipe (55) farthest from the storage cylinder (1) and away from the connected sleeve (53).

5. A loading crane pipe sealing device according to claim 1, characterized in that: The outer annular surface of the inner conical cylinder (4) and the inner annular surface of the outer conical cylinder (3) are both conical, and the inner conical cylinder (4) and the outer conical cylinder (3) are coaxially arranged.

6. A loading crane pipe sealing device according to claim 1, characterized in that: The inner ring surface of the outer cone cylinder (3) is rotatably inlaid with a ball (11), and the ball (11) is in rolling contact with the outer ring surface of the inner cone cylinder (4).

7. A loading crane pipe sealing device according to claim 2, characterized in that: One end of the sleeve (53) close to the adjacent movable cylinder (52) is a protruding structure, and the inner diameter of the protruding structure of the sleeve (53) is smaller than the outer diameter of the rotating ring (51).

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