A low temperature crane pipe that is easy to assemble

Abstract

The utility model relates to the technical field of crane pipes, and the application discloses a low-temperature crane pipe that is easy to assemble, including a rigid pipe and a flexible pipe. The rigid pipe is connected to a connecting pipe port 1 at one end close to the flexible pipe, and the flexible pipe is connected to a connecting pipe port 2 at one end close to the rigid pipe. A sealing pipe sleeve is rotatably sleeved on the outer side of the connecting pipe port 1, and the inner surface of the sealing pipe sleeve is threadedly connected to the outer surface of the connecting pipe port 2. A sealing gasket is fixed to the outer surface of the connecting pipe port 2 on the side of the sealing pipe sleeve. The utility model has a rotating connection structure, and when assembling the rigid pipe and the flexible pipe, the two can be fixed directly by twisting the sealing pipe sleeve. At the same time, with the cooperation of the internal sealing pipe and the sealing rubber pad, the sealing of the interface between the rigid pipe and the flexible pipe can be guaranteed, which solves the problem that the existing low-temperature crane pipe is relatively cumbersome and laborious during assembly, and further improves the convenience of the crane pipe when in use.

Description

Technical Field

[0001] The utility model application relates to the technical field of crane pipes, in particular to a low-temperature crane pipe which is easy to assemble. Background Art

[0002] The crane arm is a special equipment used in the fluid loading and unloading process of the petrochemical industry. It is also called a fluid loading and unloading arm. It is connected with rigid pipes and elbows using a rotating joint to realize the transmission of liquid media between trains, tank cars and trestle storage and transportation pipelines. It replaces the old hose connection and has the characteristics of high safety, flexibility and long life.

[0003] The crane pipe is mainly composed of fixing, rotating, operating, balancing and other mechanisms and oil pipes. When the rigid pipeline is connected with the flexible pipeline, in order to ensure sufficient sealing, a flange fixing method is generally adopted during assembly and fixing. Multiple bolts are required for fixing, which makes the operation of the crane pipe more cumbersome and laborious during assembly and fixing. Summary of the invention

[0004] In order to solve the problem that the existing cryogenic lifting pipe is complicated and laborious to assemble, the utility model provides a cryogenic lifting pipe which is easy to assemble to solve the above problem.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A low-temperature crane pipe that is easy to assemble includes a rigid pipe and a flexible pipe. The rigid pipe is connected to a connecting pipe port 1 at one end close to the flexible pipe, and the flexible pipe is connected to a connecting pipe port 2 at one end close to the rigid pipe. A sealing pipe sleeve is rotatably sleeved on the outer side of the connecting pipe port 1, and the inner surface of the sealing pipe sleeve is threadedly connected to the outer surface of the connecting pipe port 2. A sealing pad is fixed to the outer surface of the connecting pipe port 2 on the side of the sealing pipe sleeve.

[0007] Furthermore, an internal sealing tube is fixedly passed through the first connecting pipe port, and the internal sealing tube is inserted into the second connecting pipe port, and a groove cooperating with the internal sealing tube is provided inside the second connecting pipe port.

[0008] Furthermore, a sealing rubber pad three is glued and fixed to one side of the sealing sleeve near the connecting pipe opening one, and the sealing rubber pad three is arranged in a ring shape that matches the rigid pipe, and the diameter of the connecting pipe opening one is larger than the diameter of the rigid pipe.

[0009] Furthermore, the length of the sealing sleeve is equal to the sum of the lengths of the threaded sections of the connecting pipe port 1 and the connecting pipe port 2, and a sealing rubber pad 1 is fixed to the surface of the sealing pad plate close to the sealing sleeve side.

[0010] Furthermore, the sealing pipe sleeve includes an inner anti-corrosion pipe, a thermal insulation splint and a thermal insulation coating, the outer surface of the thermal insulation splint is wrapped and fixed with a thermal insulation splint, and the outer surface of the thermal insulation splint is coated with a thermal insulation coating.

[0011] Furthermore, a sealing rubber pad 2 is glued and fixed to the inner wall of the groove on the side of the inner sealing tube, and the inner ring diameter of the inner sealing tube is equal to the inner ring diameter of the connecting pipe opening 1.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] In the utility model, through the rotating connection structure, when assembling the rigid pipe and the flexible pipe, the two can be fixed directly by twisting the sealing pipe sleeve. At the same time, with the cooperation of the internal sealing pipe and the sealing rubber pad, the sealing of the interface between the rigid pipe and the flexible pipe can be guaranteed, which solves the problem that the existing low-temperature crane pipe is relatively cumbersome and laborious during assembly, and further improves the convenience of the crane pipe when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 is a front view schematic diagram of a crane pipe connection structure according to an embodiment of the present application;

[0016] Figure 2 yes Figure 1 A schematic front cross-sectional view of the crane pipe connection structure in the illustrated embodiment;

[0017] Figure 3 yes Figure 1 A schematic side cross-sectional view of the sealing sleeve in the illustrated embodiment.

[0018] The meanings of the reference numerals in the figure are: 1. Rigid pipe; 2. Flexible pipe; 3. Connecting pipe opening 1; 4. Connecting pipe opening 2; 5. Sealing pad; 6. Sealing pipe sleeve; 611. Internal anti-corrosion pipe; 612. Insulating splint; 613. Insulating coating; 7. Sealing rubber pad 1; 8. Internal sealing pipe; 9. Sealing rubber pad 2; 10. Sealing rubber pad 3. DETAILED DESCRIPTION

[0019] In order to make the purpose, features, and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the embodiments described below are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0020] Reference Figure 1 , Figure 2 and Figure 3 A low-temperature crane pipe that is easy to assemble comprises a rigid pipe 1 and a flexible pipe 2. The rigid pipe 1 is connected with a connecting pipe mouth 3 at one end close to the flexible pipe 2. An internal sealing pipe 8 is fixed inside the connecting pipe mouth 3. A sealing rubber pad 29 is glued and fixed to the inner wall of the groove on the side of the internal sealing pipe 8. The inner ring diameter of the internal sealing pipe 8 is equal to the inner ring diameter of the connecting pipe mouth 3, and the internal sealing pipe 8 is inserted into the connecting pipe mouth 24. A groove matching with the internal sealing pipe 8 is provided inside the connecting pipe mouth 24. The flexible pipe 2 is connected with a connecting pipe mouth 24 at one end close to the rigid pipe 1. A sealing pipe sleeve 6 is rotatably sleeved on the outer side of the connecting pipe mouth 3. The inner surface of the sealing pipe sleeve 6 is threadedly connected to the outer surface of the connecting pipe mouth 24. A sealing pad 5 is fixed to the outer surface of the connecting pipe mouth 24 on the side of the sealing pipe sleeve 6.

[0021] Specifically, when the rigid pipe 1 and the flexible pipe 2 need to be assembled and fixed, align the internal sealing tube 8 and insert it into the internal groove of the connecting pipe port 2 4, then pull the sealing tube sleeve 6 to move the sealing tube sleeve 6 to the outside of the connecting pipe port 2 4, rotate the sealing tube sleeve 6 so that the sealing tube sleeve 6 is threadedly fixed to the connecting pipe port 2 4, and when the connecting pipe port 1 3 is fixed and clamped, the internal sealing tube 8 abuts against the sealing rubber pad 2 9, so as to ensure the sealing of the interface between the connecting pipe port 1 3 and the connecting pipe port 2 4.

[0022] As an optimization solution, Figure 3 As shown, a sealing rubber pad 3 10 is glued and fixed to one side of the sealing sleeve 6 near the connecting pipe port 1 3, and the sealing rubber pad 3 10 is set to a ring shape that matches the rigid pipe 1, the diameter of the connecting pipe port 1 3 is larger than the diameter of the rigid pipe 1, the length of the sealing sleeve 6 is equal to the sum of the lengths of the threaded sections of the connecting pipe port 1 3 and the connecting pipe port 2 4, and a sealing rubber pad 7 is fixed to the surface of the sealing pad 5 near the side of the sealing sleeve 6, and the sealing sleeve 6 includes an inner anti-corrosion pipe 611, a thermal insulation splint 612 and a thermal insulation coating 613, the outer surface of the thermal insulation splint 612 is wrapped and fixed with the thermal insulation splint 612, and the outer surface of the thermal insulation splint 612 is coated with the thermal insulation coating 613.

[0023] Specifically, after the sealing sleeve 6 seals and fixes the connecting pipe port 1 3 and the connecting pipe port 2 4, the insulation splint 612 and the insulation coating 613 cooperate to protect the interface, and when the sealing sleeve 6 rotates and is sleeved on the outside of the connecting pipe port 2 4, it drives the sealing rubber pad 1 7 to abut against the side of the connecting pipe port 1 3, and at the same time, its end is pressed against the sealing rubber pad 1 7, thereby increasing the sealing performance of the connection between the flexible pipe 2 and the connecting pipe port 3.

[0024] It will be apparent to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes within the meaning and scope of the equivalent elements of the claims be included in the present application. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0025] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application 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. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A cryogenic pipe that is easy to assemble, comprising a rigid pipe (1) and a flexible pipe (2), characterized in that: The end of the rigid pipe (1) close to the flexible pipe (2) is connected to a connecting pipe opening 1 (3), and the end of the flexible pipe (2) close to the rigid pipe (1) is connected to a connecting pipe opening 2 (4). A sealing pipe sleeve (6) is rotatably sleeved on the outer side of the connecting pipe opening 1 (3), and the inner surface of the sealing pipe sleeve (6) is threadedly connected to the outer surface of the connecting pipe opening 2 (4). A sealing pad (5) is fixed to the outer surface of the connecting pipe opening 2 (4) on the side of the sealing pipe sleeve (6).

2. The cryogenic lifting pipe that is easy to assemble according to claim 1 is characterized in that: An internal sealing tube (8) is fixedly inserted into the first connecting pipe opening (3), and the internal sealing tube (8) is inserted into the second connecting pipe opening (4). A slot matching the internal sealing tube (8) is provided inside the second connecting pipe opening (4).

3. The cryogenic lifting pipe that is easy to assemble according to claim 1 is characterized in that: A sealing rubber pad three (10) is glued and fixed to one side of the sealing sleeve (6) near the connecting pipe opening one (3), and the sealing rubber pad three (10) is arranged in a ring shape that matches the rigid pipe (1), and the diameter of the connecting pipe opening one (3) is larger than the diameter of the rigid pipe (1).

4. The cryogenic lifting pipe that is easy to assemble according to claim 1 is characterized in that: The length of the sealing sleeve (6) is equal to the sum of the lengths of the threaded sections of the connecting pipe opening 1 (3) and the connecting pipe opening 2 (4), and a sealing rubber pad 1 (7) is fixed on the surface of the sealing pad plate (5) close to the sealing sleeve (6).

5. The cryogenic lifting pipe that is easy to assemble according to claim 1 is characterized in that: The sealing pipe sleeve (6) comprises an inner anti-corrosion pipe (611), a heat-insulating splint (612) and a heat-insulating coating (613); the outer surface of the heat-insulating splint (612) is wrapped and fixed with the heat-insulating splint (612); and the outer surface of the heat-insulating splint (612) is coated with the heat-insulating coating (613).

6. The cryogenic lifting pipe that is easy to assemble according to claim 2 is characterized in that: A sealing rubber pad 2 (9) is glued and fixed to the inner wall of the slot on the side of the inner sealing tube (8), and the inner circle diameter of the inner sealing tube (8) is equal to the inner circle diameter of the connecting pipe opening 1 (3).

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