Flaring device for butt joint of liquid oxygen pipes

By designing a liquid oxygen pipe docking flaring device with a clamping structure and a quick-release structure, the problem of needing to replace the clamping device and flaring post in the existing device was solved. This enabled rapid and stable pipe diameter adaptation and flaring post replacement, improving work efficiency and reducing costs.

CN224028384UActive Publication Date: 2026-03-24TIBET OXYGEN TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-27
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Existing liquid oxygen pipe flaring devices require replacement of clamping devices and flaring columns when fixing liquid oxygen pipes of different diameters, which is a complicated process and increases costs.

Method used

A flaring device including a clamping structure and a quick-release structure was designed. The clamping structure provides stable clamping through an auxiliary frame and a spring, while the quick-release structure enables quick replacement of the flaring post through a snap-fit ​​ball, avoiding the need for tool replacement.

Benefits of technology

It enables flexible clamping and quick replacement of flaring columns according to different pipe diameters, improving work efficiency and reducing the cumbersome process and cost of equipment replacement.

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Abstract

The utility model discloses a flaring device for butt joint of liquid oxygen pipes, which comprises a bottom plate, and the upper side of the bottom plate is fixedly connected with a clamping structure; the clamping structure comprises a third connecting column, the third connecting column is fixedly arranged on the upper side of the bottom plate, and when a liquid oxygen pipe needs to be clamped, an operator firstly rotates the adjusting disc, and the adjusting main column is driven to move through threaded transmission of the stud. Movement of the adjusting main column is transmitted to the clamping column through the sliding columns on the two sides, and the second sliding column directly pushes the second clamping column to move. Meanwhile, a fourth spring and a fifth spring provide necessary elastic force, and it is ensured that the clamping force is moderate and evenly distributed. The design of the first auxiliary frame and the second auxiliary frame increases the contact area with the liquid oxygen pipe, stable clamping is guaranteed, pipe body deformation caused by too large local stress is avoided, through the arrangement of the clamping structure, the whole clamping process can be flexibly adjusted according to different pipe diameters, and the rapid and stable clamping effect is achieved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to pipe class flaring technical field especially a kind of flaring device for liquid oxygen pipe butt joint. BACKGROUND

[0002] In liquid oxygen storage and conveying system, pipe butt joint is often needed between liquid oxygen tanks or between liquid oxygen tank and other related equipment. However, due to the differences in specifications, models and design requirements of different equipment, the pipe diameters of the connecting pipes are often inconsistent. In the prior art, when two liquid oxygen pipes with different pipe diameters are butt jointed, the traditional method is to enlarge the opening at one end of the liquid oxygen pipe with smaller pipe diameter to the same opening of the liquid oxygen pipe with larger pipe diameter.

[0003] The existing patent with patent number CN213079808U discloses a flaring device for liquid oxygen pipe butt joint. The flaring device is used to connect two liquid oxygen pipes with different pipe diameters. The flaring device includes a connecting pipe one and a connecting pipe two which is inserted and fitted with the connecting pipe one. The input end of the connecting pipe one is connected with the output end of the liquid oxygen pipe with smaller pipe diameter, and the output end of the connecting pipe two is connected with the input end of the liquid oxygen pipe with larger pipe diameter. The outer side of the connecting pipe one near the output end is provided with two connection blocks. The flaring device for liquid oxygen pipe butt joint is installed between two liquid oxygen pipes with different pipe diameters. One end of the liquid oxygen pipe with smaller pipe diameter is connected with the variable diameter section one of the connecting pipe one, and then the non-variable diameter section of the connecting pipe one is connected with the liquid oxygen pipe with larger pipe diameter through the connecting pipe two. It is equivalent to indirectly flaring the liquid oxygen pipe with smaller pipe diameter, so that the two liquid oxygen pipes with different pipe diameters are quickly butt jointed without damaging the structure of the liquid oxygen pipe, saving time and effort.

[0004] The existing flaring device for liquid oxygen pipe butt joint needs to replace the clamping device to adapt to different sizes of liquid oxygen pipes when fixing liquid oxygen pipes with different pipe diameters. It is more complicated and needs different flaring columns to flaring the liquid oxygen pipe. The process needs to replace different machines, which increases the cost. Therefore, we propose a flaring device for liquid oxygen pipe butt joint to solve the above-mentioned problems. SUMMARY

[0005] The purpose of this section is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name. Such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] Therefore, the utility model aims at providing a kind of flaring device for liquid oxygen pipe butt joint, can solve in the fixed liquid oxygen pipe of different pipe diameter size, most need to replace clamping device to adapt to different size liquid oxygen pipe, more complicated and need different flaring column to the flaring of liquid oxygen pipe, its process needs most to replace different machine, increase the problem of cost.

[0007] To solve the above technical problems, the utility model provides a kind of flaring device for liquid oxygen pipe butt joint, using the technical scheme as follows: including bottom plate, the upper side of the bottom plate is fixedly connected with clamping structure;

[0008] The clamping structure includes third connecting column, the third connecting column is fixedly arranged on the upper side of bottom plate, the lower side of the third connecting column is fixedly provided with fourth connecting column, one side of the fourth connecting column is movably connected with first clamping column, one side of the first clamping column is fixedly connected with first auxiliary frame, the outer side of the third connecting column is fixedly connected with fourth spring, the outer side of the third connecting column is movably connected with push adjustment column, one side of the push adjustment column is fixedly connected with fifth spring, one side of the fifth spring is fixedly connected with second clamping column, one side of the second clamping column is fixedly connected with second auxiliary frame.

[0009] Optionally, the fourth spring, push adjustment column and fifth spring are all arranged on the outer wall of the third connecting column, and the first clamping column and the second clamping column are movably arranged on the outer wall of the third connecting column.

[0010] Optionally, the clamping structure further includes a second fixed plate, the second fixed plate is fixedly connected to the upper side of the bottom plate, the upper side of the second fixed plate is fixedly connected with a first fixed column, one side of the first fixed column is movably connected with a stud, one end of the stud is fixedly connected with an adjusting disc, and the outer side of the stud is threadedly connected with an adjusting main column.

[0011] Optionally, one side of the adjusting main column is movably connected with a first sliding column, one side of the first sliding column is fixedly connected with a second fixed column, and the other side of the adjusting main column is movably connected with a second sliding column.

[0012] Optionally, the first sliding column and the second sliding column are arranged on both sides of the adjusting main column, and the adjusting main column is connected through the second sliding column and the second clamping column.

[0013] Optionally, the upper side of the bottom plate is fixedly connected with a quick release structure, the quick release structure includes a support frame, the support frame is fixedly connected to the upper side of the bottom plate, the inner side of the support frame is fixedly connected with a first frame column, the inner side of the first frame column is fixedly connected with a first fixed plate, one side of the first fixed plate is fixedly connected with a first spring, one side of the first spring is fixedly connected with a first connecting column.

[0014] Optionally, the inner side of the first frame column is fixedly provided with a first notch, an inner cavity of the first notch is movably provided with a buckle ball, the outer side of the first frame column is provided with a second notch, the outer side of the first frame column is movably connected with a second spring, and the outer side of the first frame column is movably provided with a fixed outer column.

[0015] Optionally, the inner cavity of the first frame column is movably provided with a second frame column, the inner side of the second frame column is provided with an inner slot, one side of the inner slot is fixedly connected with a third spring, and one side of the third spring is fixedly connected with a second connecting column.

[0016] Optionally, the outer side of the second frame column is provided with a third notch, and one side of the second frame column is fixedly provided with a flared column.

[0017] In summary, the utility model has at least one of the following beneficial effects:

[0018] 1. When the liquid oxygen pipe needs to be clamped, the operator first rotates the adjusting disc, drives the adjusting main column to move through the thread transmission of the screw column. The movement of the adjusting main column is transmitted to the clamping column through the two sliding columns, wherein the second sliding column directly drives the second clamping column to move. At the same time, the fourth spring and the fifth spring provide necessary elastic force, so that the clamping force is moderate and uniformly distributed. The design of the first auxiliary frame and the second auxiliary frame increases the contact area with the liquid oxygen pipe, which not only ensures stable clamping, but also avoids local stress too large to cause pipe body deformation. Through the arrangement of the clamping structure, the whole clamping process can be flexibly adjusted according to different pipe diameters, so that the quick and stable clamping effect is realized.

[0019] 2. When the flared column needs to be replaced, the operator presses the fixed outer column, compresses the second spring, and makes the buckle ball come out of the third notch. At this time, the second frame column can be freely pulled out, so that different specifications of the flared column can be replaced. After replacement is completed, the second frame column is inserted into the first frame column again, the third spring pushes the second connecting column to tightly contact the first connecting column, and at the same time, the buckle ball is automatically clamped into the third notch under the action of the second spring to complete locking. The first spring and the third spring jointly ensure stable connection and prevent loosening during operation. This design realizes quick replacement of the flared column, and different specifications of the flared column can be switched without tools, so that the work efficiency is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can also be obtained by those skilled in the art without creating labor under the premise.

[0021] Figure 1 It is a whole structure schematic view of the utility model.

[0022] Figure 2 It is the cross section schematic view of the quick release structure of the utility model;

[0023] Figure 3 It is the cross section schematic view of the quick release structure of the utility model;

[0024] Figure 4 It is the second fixed plate connection schematic view of the clamping structure of the utility model;

[0025] Figure 5 It is the first clamping column connection schematic view of the clamping structure of the utility model.

[0026] Mark 1, bottom plate; 2, quick release structure; 3, clamping structure; 201, support frame; 202, first frame column; 203, first fixed plate; 204, first spring; 205, first connecting column; 206, first notch; 207, buckle ball; 208, second notch; 209, second spring; 210, fixed outer column; 211, second frame column; 212, inner groove; 213, third spring; 214, second connecting column; 215, third notch; 216, flared column; 301, second fixed plate; 302, first fixed column; 303, stud; 304, adjusting disc; 305, adjusting main column; 306, first sliding column; 307, second fixed column; 308, third connecting column; 309, fourth connecting column; 310, first clamping column; 311, first auxiliary frame; 312, fourth spring; 313, push adjusting column; 314, fifth spring; 315, second clamping column; 316, second auxiliary frame; 317, second sliding column. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings Figures 1-5 The utility model is further explained in detail.

[0028] Example one, refer to Figures 1-5 In order to be able to solve the existing for liquid oxygen pipe docking flared device in the fixed different pipe diameter size liquid oxygen pipe, need to replace the clamping device to adapt to different size liquid oxygen pipe, more complicated problem in the embodiment, the utility model discloses a kind of flared device for liquid oxygen pipe docking,

[0029] Including bottom plate 1, the upper side of bottom plate 1 is fixedly connected with clamping structure 3;

[0030] The clamping structure 3 comprises a third connecting column 308 fixedly arranged on the upper side of the bottom plate 1, the lower side of the third connecting column 308 is fixedly provided with a fourth connecting column 309, one side of the fourth connecting column 309 is movably connected with a first clamping column 310, one side of the first clamping column 310 is fixedly connected with a first auxiliary frame 311, the outer side of the third connecting column 308 is fixedly connected with a fourth spring 312, the outer side of the third connecting column 308 is movably connected with a pushing adjusting column 313, one side of the pushing adjusting column 313 is fixedly connected with a fifth spring 314, one side of the fifth spring 314 is fixedly connected with a second clamping column 315, one side of the second clamping column 315 is fixedly connected with a second auxiliary frame 316.

[0031] Specifically, the clamping stability is enhanced when the liquid oxygen pipe is clamped through the arrangement of the first auxiliary frame 311 and the second auxiliary frame 316.

[0032] The fourth spring 312, the pushing adjusting column 313 and the fifth spring 314 are arranged on the outer wall of the third connecting column 308, and the first clamping column 310 and the second clamping column 315 are movably arranged on the outer wall of the third connecting column 308.

[0033] Specifically, the first clamping column 310 is arranged at one end of the third connecting column 308, and the second clamping column 315 is arranged at the central position of the third connecting column 308.

[0034] The clamping structure 3 further comprises a second fixed plate 301 fixedly connected to the upper side of the bottom plate 1, the upper side of the second fixed plate 301 is fixedly connected with a first fixed column 302, one side of the first fixed column 302 is movably connected with a stud 303, one end of the stud 303 is fixedly connected with an adjusting disc 304, and the outer side of the stud 303 is threadedly connected with an adjusting main column 305.

[0035] Specifically, the bottom plate 1 is further provided with a second fixed plate 301, and a threaded adjusting system composed of a fixed column, a stud 303 and an adjusting disc 304 is mounted on the second fixed plate 301, and the two sides of the sliding column are driven to move by the adjusting main column 305.

[0036] One side of the adjusting main column 305 is movably connected with a first sliding column 306, one side of the first sliding column 306 is fixedly connected with a second fixed column 307, and the other side of the adjusting main column 305 is movably connected with a second sliding column 317.

[0037] The first sliding column 306 and the second sliding column 317 are arranged on the two sides of the adjusting main column 305, and the adjusting main column 305 is connected through the second sliding column 317 and the second clamping column 315.

[0038] Specifically, when the adjusting main column 305 moves, the second clamping column 315 can be driven to move through the second sliding column 317.

[0039] Specifically, when the liquid oxygen pipe needs to be clamped, the operator first rotates the adjusting disc 304 to drive the adjusting main column 305 to move through the threaded transmission of the stud 303. The movement of the adjusting main column 305 is transmitted to the clamping column through the two sliding columns, and the second sliding column 317 directly pushes the second clamping column 315 to move. At the same time, the fourth spring 312 and the fifth spring 314 provide the necessary elastic force to ensure that the clamping force is moderate and evenly distributed. The design of the first auxiliary frame 311 and the second auxiliary frame 316 increases the contact area with the liquid oxygen pipe, which not only ensures stable clamping, but also avoids local stress that is too large to cause pipe deformation. Through the arrangement of the clamping structure 3, the entire clamping process can be flexibly adjusted according to different pipe diameters, achieving fast and stable clamping effect.

[0040] Embodiment two, refer to Figures 1-5 In order to solve the problem of the existing flaring device for liquid oxygen pipe docking, which needs different flaring columns to flare different sizes of liquid oxygen pipes, and the process needs to change different machines, increasing the cost, in this embodiment, based on the same concept as the above embodiment one, the flaring device for liquid oxygen pipe docking further comprises a quick release structure 2.

[0041] The upper side of the bottom plate 1 is fixedly connected with the quick release structure 2, and the quick release structure 2 comprises a support frame 201 fixedly connected to the upper side of the bottom plate 1. The inner side of the support frame 201 is fixedly connected with a first frame column 202, the inner side of the first frame column 202 is fixedly connected with a first fixed plate 203, one side of the first fixed plate 203 is fixedly connected with a first spring 204, and one side of the first spring 204 is fixedly connected with a first connecting column 205.

[0042] The inner side of the first frame column 202 is fixedly provided with a first notch 206, and the inner cavity of the first notch 206 is movably provided with a buckle ball 207. The outer side of the first frame column 202 is provided with a second notch 208, the outer side of the first frame column 202 is movably connected with a second spring 209, and the outer side of the first frame column 202 is movably provided with a fixed outer column 210.

[0043] Specifically, through the arrangement of the second spring 209, when the fixed outer column 210 is pushed, the spring is compressed, and when the fixed outer column 210 is released, the second spring 209 is reset by the rebound force.

[0044] The inner cavity of the first frame column 202 is movably provided with a second frame column 211, the inner side of the second frame column 211 is provided with an inner groove 212, one side of the inner groove 212 is fixedly connected with a third spring 213, and one side of the third spring 213 is fixedly connected with a second connecting column 214.

[0045] The outer side of the second frame column 211 is provided with a third notch 215, and the outer side of the second frame column 211 is fixedly provided with a flaring column 216.

[0046] Specifically, the buckle ball 207 can be fixed outside the third slot 215, thereby fixing the second frame column 211.

[0047] The specific working principle is as follows: when the flared column 216 needs to be replaced, the operator presses the fixed outer column 210 to compress the second spring 209 so that the buckle ball 207 is released from the third slot 215, at this time, the second frame column 211 can be freely extracted, and different specifications of the flared column 216 are convenient to replace. After the replacement is completed, the second frame column 211 is inserted into the first frame column 202 again, the third spring 213 pushes the second connecting column 214 to tightly contact the first connecting column 205, and at the same time, the buckle ball 207 is automatically buckled into the third slot 215 under the action of the second spring 209 to complete the locking, and the first spring 204 and the third spring 213 jointly ensure the connection to be stable and prevent loosening during operation. This design realizes the quick replacement of the flared column 216, and the switching of different specifications of the flared column 216 can be completed without tools, which greatly improves the work efficiency.

[0048] The wiring diagram of the motor and the cylinder in the utility model belongs to the public knowledge in the field, and its working principle is a well-known technology, and its model is selected according to actual use, so the control mode and the wiring arrangement of the motor and the cylinder are not explained in detail.

[0049] The above are preferred embodiments of the utility model, and do not limit the protection scope of the utility model, so: equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope of the utility model.

Claims

1. A flaring device for liquid oxygen pipe docking comprising a base plate (1), characterized in that: The upper side of the bottom plate (1) is fixedly connected with a clamping structure (3); The clamping structure (3) comprises a third connecting column (308), which is fixedly arranged on the upper side of the bottom plate (1); the lower side of the third connecting column (308) is fixedly provided with a fourth connecting column (309); one side of the fourth connecting column (309) is movably connected with a first clamping column (310); one side of the first clamping column (310) is fixedly connected with a first auxiliary frame (311); the outer side of the third connecting column (308) is fixedly connected with a fourth spring (312); the outer side of the third connecting column (308) is movably connected with a pushing adjusting column (313); one side of the pushing adjusting column (313) is fixedly connected with a fifth spring (314); one side of the fifth spring (314) is fixedly connected with a second clamping column (315); one side of the second clamping column (315) is fixedly connected with a second auxiliary frame (316).

2. A flare device for liquid oxygen pipe docking according to claim 1, characterized in that: The fourth spring (312), the pushing adjusting column (313) and the fifth spring (314) are all arranged on the outer wall of the third connecting column (308); the first clamping column (310) and the second clamping column (315) are movably arranged on the outer wall of the third connecting column (308).

3. A flare device for liquid oxygen pipe docking according to claim 1, characterized in that: The clamping structure (3) further comprises a second fixed plate (301), which is fixedly connected to the upper side of the bottom plate (1); the upper side of the second fixed plate (301) is fixedly connected with a first fixed column (302); one side of the first fixed column (302) is movably connected with a stud (303); one end of the stud (303) is fixedly connected with an adjusting disc (304); the outer side of the stud (303) is threadedly connected with an adjusting main column (305).

4. A flare device for liquid oxygen pipe docking according to claim 3, characterized in that: One side of the adjusting main column (305) is movably connected with a first sliding column (306); one side of the first sliding column (306) is fixedly connected with a second fixed column (307); the other side of the adjusting main column (305) is movably connected with a second sliding column (317).

5. A flare device for liquid oxygen pipe docking according to claim 4, characterized in that: The first sliding column (306) and the second sliding column (317) are arranged on both sides of the adjusting main column (305); the adjusting main column (305) is connected through the second sliding column (317) and the second clamping column (315).

6. A flare device for liquid oxygen pipe docking according to claim 1, characterized in that: The upper side of the bottom plate (1) is fixedly connected with a quick release structure (2); the quick release structure (2) comprises a support frame (201), which is fixedly connected to the upper side of the bottom plate (1); the inner side of the support frame (201) is fixedly connected with a first frame column (202); the inner side of the first frame column (202) is fixedly connected with a first fixed plate (203); one side of the first fixed plate (203) is fixedly connected with a first spring (204); one side of the first spring (204) is fixedly connected with a first connecting column (205).

7. A flare device for liquid oxygen pipe docking according to claim 6, characterized in that: The inner side of the first frame column (202) is fixedly provided with a first notch (206), the inner cavity of the first notch (206) is movably provided with a buckle ball (207), the outer side of the first frame column (202) is provided with a second notch (208), the outer side of the first frame column (202) is movably connected with a second spring (209), and the outer side of the first frame column (202) is movably provided with a fixed outer column (210).

8. A flare device for liquid oxygen pipe docking according to claim 7, characterized in that: The inner cavity of the first frame column (202) is movably provided with a second frame column (211), the inner side of the second frame column (211) is provided with an inner groove (212), one side of the inner groove (212) is fixedly connected with a third spring (213), and one side of the third spring (213) is fixedly connected with a second connecting column (214).

9. A flare device for liquid oxygen pipe docking according to claim 8, characterized in that: The outer side of the second frame column (211) is provided with a third notch (215), and the one side of the second frame column (211) is fixedly provided with a flared column (216).

Citation Information

Patent Citations

  • Flaring device for butt joint of liquid oxygen pipes

    CN213079808U