Butt joint structure of vacuum pipeline

Abstract

The utility model discloses a butt joint structure of a vacuum pipeline, which comprises a first butt joint inserting cylinder fixedly connected to a left vacuum pipe and a second butt joint cylinder fixedly connected to a right vacuum pipe, the second butt joint cylinder is provided with an inserting groove, and the inner wall of the first butt joint inserting cylinder and the inner wall of the inserting groove are both connected with a plurality of hemispherical rubber protrusions. The first butt joint inserting cylinder and the hemispherical rubber protrusions are inserted into the inserting grooves in a matched mode, a sealing glue circular ring is connected to one side of the first butt joint inserting cylinder, a glue empty groove is formed in the sealing glue circular ring, a liquid inlet is formed in the sealing glue circular ring and connected with a plug, and an opening is formed in one side of the sealing glue circular ring. The openings are formed in the contact ends of the first butt-joint inserting barrel and the second butt-joint barrel, the outer walls of shaft bodies of the first butt-joint inserting barrel and the second butt-joint barrel are connected with a plurality of L-shaped connecting blocks and rectangular connecting blocks respectively, a connecting rod is connected between the single set of L-shaped connecting blocks and rectangular connecting blocks in a penetrating mode, and the two ends of the outer wall of the shaft body of the connecting rod are provided with external threads and connected with nuts.

Description

Technical Field

[0001] The utility model belongs to the technical field of vacuum pipeline components, and particularly relates to a butt joint structure of a vacuum pipeline. Background Art

[0002] Cryogenic pipes are applicable to seamless steel pipes for cryogenic pressure vessel pipelines and cryogenic heat exchanger pipelines. When cryogenic vacuum pipes transport refrigerated liquefied gases, the external environment has a very large impact on the liquid temperature inside the pipes. The external environment mainly transfers heat to the liquid inside the pipes through direct heat conduction, thermal radiation, etc. Most cryogenic vacuum pipes are used in a segmented manner during use and are butted at the designated location. Therefore, an adiabatic butt joint mechanism for cryogenic vacuum pipes is required.

[0003] However, in actual use, when the existing adiabatic butt joint mechanisms of cryogenic vacuum pipes are in use, most only connect the outer pipes of the vacuum pipes through connecting sleeves. The butt joint method is single, and it is easy to loosen after long-term use, affecting the connection stability, and then causing liquid and temperature leakage, affecting the use effect.

[0004] Therefore, a butt joint structure of a vacuum pipeline is provided here to solve the above technical problems. Summary of the Utility Model

[0005] Aiming at the problems raised in the above background art, the purpose of the present utility model is: to provide a butt joint structure of a vacuum pipeline.

[0006] To achieve the above technical purpose, the technical solution adopted by the present utility model is as follows:

[0007] A butt joint structure of a vacuum pipeline includes a first butt joint socket fixedly connected to the left vacuum pipe and a second butt joint cylinder fixedly connected to the right vacuum pipe. The second butt joint cylinder is provided with a slot. A plurality of hemispherical rubber protrusions are connected to the inner wall of the first butt joint socket and the inner wall of the slot. The first butt joint socket and each hemispherical rubber protrusion are matched and inserted into the slot;

[0008] One side of the first butt joint socket is connected with a sealing glue ring. A glue empty groove is arranged in the sealing glue ring. The sealing glue ring is provided with a liquid inlet connected with a plug. One side of the sealing glue ring is provided with an opening, and the opening is arranged at the contact end of the first butt joint socket and the second butt joint cylinder;

[0009] A plurality of L-shaped connecting blocks and rectangular connecting blocks are respectively connected to the outer walls of the shafts of the first butt joint socket and the second butt joint cylinder. A connecting rod penetrates through and connects between a single group of the L-shaped connecting blocks and the rectangular connecting blocks. External threads are arranged at both ends of the outer wall of the shaft of the connecting rod and are connected with nuts.

[0010] Further defined, a sealing rubber ring is embedded in the left vacuum tube, and an annular sealing groove for fitting and plugging the sealing rubber ring is provided on the right vacuum tube. Such a structural design can increase the connection sealing effect between the left vacuum tube and the right vacuum tube.

[0011] Further defined, a sealing ring is connected to one side of the opening of the sealing glue ring, and the sealing ring is in contact connection with one side of the second docking cylinder. Such a structural design can increase the friction and connection stability between the sealing glue ring and the second docking cylinder.

[0012] Further defined, a magnet ring is embedded in the inner wall of the slot of the second docking cylinder, and a metal block for magnetic attraction with the magnet ring is provided at the end of the first docking plug cylinder. Such a structural design can improve the connection stability between the first docking plug cylinder and the second docking cylinder.

[0013] Further defined, the plug is threadedly connected to the liquid inlet of the sealing glue ring, and the liquid inlet is located on the upper side of the sealing glue ring. Such a structural design can improve the anti-liquid leakage effect of the sealing glue ring.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1. The present utility model includes a first docking plug cylinder connected to the left vacuum tube and a second docking cylinder fixedly connected to the right vacuum tube. The first docking plug cylinder and the second docking cylinder are connected through three steps of plugging, fixed limiting, and glue sealing in sequence. The diversified connection methods can prevent the vacuum pipeline from directly falling off when there is looseness at the docking part, with good connection stability, prevent liquid and temperature leakage, and the structure is simple and easy to operate. Brief Description of the Drawings

[0016] The present utility model can be further illustrated by the non-limiting embodiments given in the drawings;

[0017] Figure 1 It is a schematic cross-sectional view of the overall structure of an embodiment of the docking structure of a vacuum pipeline of the present utility model;

[0018] Figure 2 It is of an embodiment of the docking structure of a vacuum pipeline of the present utility model Figure 1 Schematic diagram of the structure at position A.

[0019] The main component symbols are explained as follows:

[0020] Left vacuum tube 1, sealing rubber ring 1001, first docking plug cylinder 101, hemispherical rubber protrusion 102, L-shaped connecting block 103;

[0021] Right vacuum tube 2, second docking cylinder 201, slot 202, rectangular connecting block 203, magnet ring 204;

[0022] Sealing glue ring 3, plug 301, opening 302, sealing ring 303;

[0023] Connecting rod 4, nut 401. Specific implementation mode

[0024] In order to enable those skilled in the art to better understand the present utility model, the technical solution of the present utility model will be further described below in conjunction with the drawings and embodiments.

[0025] As Figure 1-2 shown, a docking structure of a vacuum pipeline of the present utility model includes a first docking socket 101 fixedly connected to the left vacuum tube 1 and a second docking tube 201 fixedly connected to the right vacuum tube 2. The second docking tube 201 is provided with a slot 202. A plurality of hemispherical rubber protrusions 102 are connected to the inner walls of the first docking socket 101 and the slot 202. The first docking socket 101 and each hemispherical rubber protrusion 102 are inserted into the slot 202 in a matching manner;

[0026] One side of the first docking socket 101 is connected with a sealing glue ring 3. The sealing glue ring 3 is provided with a glue empty groove. The sealing glue ring 3 is provided with a liquid inlet connected with a plug 301. One side of the sealing glue ring 3 is provided with an opening 302. The opening 302 is arranged at the contact end of the first docking socket 101 and the second docking tube 201;

[0027] A plurality of L-shaped connecting blocks 103 and rectangular connecting blocks 203 are respectively connected to the outer walls of the shafts of the first docking socket 101 and the second docking tube 201. A connecting rod 4 penetrates through between a single group of L-shaped connecting blocks 103 and rectangular connecting blocks 203. External threads are arranged at both ends of the shaft of the connecting rod 4 and are connected with nuts 401.

[0028] In the embodiment of this case, the installer aligns the ends of the left vacuum tube 1 and the right vacuum tube 2 to be connected. At this time, the first docking socket 101 is inserted into the slot 202 of the second docking tube 201. During the insertion process, a plurality of hemispherical rubber protrusions 102 on the inner walls of the first docking socket 101 and the slot 202 rub against each other, increasing the insertion friction stability of the first docking socket 101 in the slot 202. Then, a connecting rod 4 is penetrated through between each group of L-shaped connecting blocks 103 and rectangular connecting blocks 203, and both ends of the connecting rod 4 are respectively fixed to the L-shaped connecting blocks 103 and rectangular connecting blocks 203 through nuts 401;

[0029] At this time, after the first docking socket cylinder 101 and the second docking cylinder 201 are stably inserted and completely fixed to each other, then the plug 301 at the liquid inlet of the sealing glue ring 3 is opened, and the sealing glue is poured into the glue empty groove, so that the sealing glue passes through the opening 302 on one side of the sealing glue ring 3 to further seal and connect the contact ends of the first docking socket cylinder 101 and the second docking cylinder 201. With such a structural design, the first docking socket cylinder 101 of the left vacuum tube 1 and the second docking cylinder 201 of the right vacuum tube 2 are connected through the steps of plugging, fixing and limiting, and glue sealing in sequence. The diversified connection methods can prevent the vacuum pipeline joint from directly falling off when it is loose, with good connection stability, prevent liquid and temperature leakage, and the structure is simple and easy to operate.

[0030] Preferably, a sealing rubber ring 1001 is embedded in the left vacuum tube 1, and the right vacuum tube 2 is provided with an annular sealing groove adapted to plug and seal the sealing rubber ring 1001. With such a structural design, the connection sealing effect between the left vacuum tube 1 and the right vacuum tube 2 can be increased. In fact, other structural shapes that can increase the connection sealing effect can also be specifically considered according to the specific situation.

[0031] Preferably, a sealing ring 303 is connected to the sealing glue ring 3 on one side of the opening 302, and the sealing ring 303 is in contact connection with one side of the second docking cylinder 201. With such a structural design, the friction and connection stability between the sealing glue ring 3 and the second docking cylinder 201 can be increased. In fact, other structural shapes that can increase the connection stability can also be specifically considered according to the specific situation.

[0032] Preferably, a magnet ring 204 is embedded in the inner wall of the slot 202 of the second docking cylinder 201, and a metal block for magnetically attracting the magnet ring 204 is provided at the end of the first docking socket cylinder 101. With such a structural design, the connection stability between the first docking socket cylinder 101 and the second docking cylinder 201 can be improved. In fact, other structural shapes that can improve the connection stability can also be specifically considered according to the specific situation.

[0033] Preferably, the plug 301 is threadedly connected to the liquid inlet of the sealing glue ring 3, and the liquid inlet is located on the upper side of the sealing glue ring 3. With such a structural design, the anti-liquid leakage effect of the sealing glue ring 3 can be improved. In fact, other structural shapes that can improve the anti-liquid leakage effect can also be specifically considered according to the specific situation.

[0034] The above embodiments only exemplarily illustrate the principles and effects of the present invention, rather than limiting the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A docking structure for a vacuum pipeline, characterized in that: It includes a first docking socket cylinder (101) fixedly connected to the left vacuum tube (1) and a second docking cylinder (201) fixedly connected to the right vacuum tube (2). The second docking cylinder (201) is provided with a slot (202). A plurality of hemispherical rubber protrusions (102) are connected to the inner wall of the first docking socket cylinder (101) and the inner wall of the slot (202). The first docking socket cylinder (101) and each hemispherical rubber protrusion (102) are inserted into the slot (202) in a matching manner; A sealing glue ring (3) is connected to one side of the first docking socket cylinder (101). A glue empty groove is provided in the sealing glue ring (3). A liquid inlet of the sealing glue ring (3) is connected with a plug (301). An opening (302) is provided on one side of the sealing glue ring (3). The opening (302) is arranged at the contact end of the first docking socket cylinder (101) and the second docking cylinder (201); A plurality of L-shaped connecting blocks (103) and rectangular connecting blocks (203) are respectively connected to the outer walls of the shafts of the first docking socket cylinder (101) and the second docking cylinder (201). A connecting rod (4) penetrates and connects between a single group of the L-shaped connecting block (103) and the rectangular connecting block (203). External threads are provided at both ends of the outer wall of the shaft of the connecting rod (4) and are connected with nuts (401).

2. The docking structure of a vacuum pipeline according to claim 1, characterized in that: A sealing rubber ring (1001) is embedded in the left vacuum tube (1), and an annular sealing groove for fitting and inserting the sealing rubber ring (1001) is provided in the right vacuum tube (2).

3. A docking structure for a vacuum pipeline according to claim 2, characterized in that: A sealing ring (303) is connected to the sealing glue ring (3) on one side of the opening (302). The sealing ring (303) is in contact connection with one side of the second docking cylinder (201).

4. A docking structure for a vacuum pipeline according to claim 3, characterized in that: A magnet ring (204) is embedded in the inner wall of the slot (202) of the second docking cylinder (201), and a metal block for magnetic attraction with the magnet ring (204) is provided at the end of the first docking socket cylinder (101).

5. The docking structure of a vacuum pipeline according to claim 4, wherein: The plug (301) is threadedly connected to the liquid inlet of the sealing glue ring (3), and the liquid inlet is located on the upper side of the sealing glue ring (3).

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