Device for precise connection of stainless steel pipes

Abstract

The utility model relates to a device for precise connection of stainless steel pipes, which comprises a first pipeline and a second pipeline, one end of the first pipeline is connected with a first flange, and one end of the second pipeline is connected with a second flange. According to the device for precise connection of the stainless steel pipes, an insertion ring is connected with an insertion groove in an inserted mode, a second sealing piece is attached to a first sealing piece, and therefore the joint of a first flange and a second flange plate is not consistent with the joint of a first pipeline and a second pipeline; through the second sealing piece and the first sealing piece, the airtightness of the first flange and the second flange to the first pipeline and the second pipeline is good, all the rod heads can be driven to rotate by rotating the gear ring, so that the screw rod is linked to rotate, the first pipeline and the second pipeline are convenient to disassemble and assemble, and the beneficial effect of being convenient to disassemble and assemble is achieved. The problems that an existing flange cannot meet the requirement for air tightness of a precise pipeline, and a plurality of sets of bolts between two flanges are inconvenient to disassemble and assemble are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline connection, in particular to a device for precise connection of stainless steel pipes. Background Art

[0002] At present, most of the connecting flanges on the market are used for connecting pipelines. However, for the connection of some special pipelines, such as precision pipelines, the liquid or gas flowing inside the tight pipeline needs to be accurately measured, so the sealing of the pipeline connection is required to be good.

[0003] However, the gap of the flange connection and the gap between the pipes are in the same position, so that the existing flange cannot meet the airtightness requirements of the precision pipe, and it is not convenient to disassemble and assemble multiple sets of bolts between the two flanges. Therefore, a device for precise connection of stainless steel pipes is proposed to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a device for the precision connection of stainless steel pipes, which has the advantages of good airtightness and easy disassembly and assembly, and solves the problem that the existing flanges cannot meet the requirements of airtightness of precision pipelines and it is inconvenient to disassemble and assemble multiple sets of bolts between two flanges.

[0005] In order to achieve the above-mentioned purpose of good air tightness and easy disassembly and assembly, the utility model provides the following technical solutions: a device for precision connection of stainless steel pipes, comprising a first pipe and a second pipe, one end of the first pipe is connected to a first flange, and one end of the second pipe is connected to a second flange;

[0006] The first flange comprises a first flange plate, the first flange plate is connected to one end of the first pipe, a screw is connected inside the first flange plate, a rod head is connected to one side of the screw, a gear ring is connected to one side of the rod head, a slot is opened inside the first flange plate, and a first sealing sheet is connected inside the slot;

[0007] The second flange includes a second flange plate, which is connected to one end of the second pipe, a nut is connected to one side of the second flange plate, a mounting hole is opened inside the second flange plate, an insert ring is connected to one side of the second flange plate, and a second sealing sheet is connected to the outer side of the insert ring.

[0008] Furthermore, the first flange is located at one end of the first pipeline close to the second pipeline, the second flange is located at one end of the second pipeline close to the first pipeline, and the first flange is fitted with the second flange.

[0009] Furthermore, the screw rod passes through the first flange and the second flange, the screw rod is located inside the mounting hole, and one end of the screw rod away from the rod head is threadedly connected to the nut.

[0010] Furthermore, the cross section of the rod head is in an I-shape, the gear ring is meshed with the rod head, and the rod head is located on the inner side of the gear ring.

[0011] Furthermore, the slot is located at one end of the first flange close to the second flange, the insert ring is located at a side of the second flange close to the first flange, the insert ring is plugged into the slot, and the second sealing sheet is fitted with the first sealing sheet.

[0012] Furthermore, the position of the mounting hole corresponds to the position of the nut, and the nut is located on a side of the second flange away from the first flange.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] The device for precise connection of stainless steel pipes is connected by inserting the insert ring into the slot, and the second sealing sheet is fitted with the first sealing sheet, so the interface between the first flange and the second flange is not consistent with the interface between the first pipeline and the second pipeline, and the second sealing sheet and the first sealing sheet ensure good airtightness of the first flange and the second flange to the first pipeline and the second pipeline.

[0015] The device for precise connection of stainless steel pipes can drive all rod heads to rotate by rotating the gear ring, thereby linking the screw rod to rotate, making it convenient to disassemble and assemble the first pipe and the second pipe, and has the advantage of easy disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the first flange of the utility model;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the second flange of the utility model.

[0020] In the figure: 1, first pipeline; 2, second pipeline; 3, first flange; 301, first flange; 302, screw; 303, rod head; 304, gear ring; 305, slot; 306, first sealing plate; 4, second flange; 401, second flange; 402, nut; 403, mounting hole; 404, plug ring; 405, second sealing plate. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-4 In this embodiment, a device for precision connection of stainless steel pipes includes a first pipe 1 and a second pipe 2, one end of the first pipe 1 is connected to a first flange 3, the first flange 3 includes a first flange 301, the first flange 301 is connected to one end of the first pipe 1, a screw 302 is connected inside the first flange 301, one side of the screw 302 is connected to a rod head 303, one side of the rod head 303 is connected to a gear ring 304, a slot 305 is opened inside the first flange 301, a first sealing sheet 306 is connected inside the slot 305, one end of the second pipe 2 is connected to a second flange 4, the second flange 4 includes a second flange 401, the second flange 401 is connected to one end of the second pipe 2, one side of the second flange 401 is connected to a nut 402, a mounting hole 403 is opened inside the second flange 401, one side of the second flange 401 is connected to an insert ring 404, and the outer side of the insert ring 404 is connected to a second sealing sheet 405.

[0023] In the case implementation, the first flange 301 is located at one end of the first pipeline 1 close to the second pipeline 2, the second flange 401 is located at one end of the second pipeline 2 close to the first pipeline 1, the first flange 3 is fitted with the second flange 401, the slot 305 is located at one end of the first flange 301 close to the second flange 401, the plug ring 404 is located on the side of the second flange 401 close to the first flange 301, the plug ring 404 is plugged into the slot 305, and the second sealing sheet 405 is fitted with the first sealing sheet 306, so the interface between the first flange 3 and the second flange 401 is inconsistent with the interface between the first pipeline 1 and the second pipeline 2, and the second sealing sheet 405 and the first sealing sheet 306 make the first flange 3 and the second flange 4 have good airtightness to the first pipeline 1 and the second pipeline 2.

[0024] In the case implementation, the screw 302 passes through the first flange 301 and the second flange 401, the screw 302 is located on the inner side of the mounting hole 403, the end of the screw 302 away from the rod head 303 is threadedly connected with the nut 402, the position of the mounting hole 403 corresponds to the position of the nut 402, the nut 402 is located on the side of the second flange 401 away from the first flange 301, the first flange 3 and the second flange 4 can be tightly fitted by connecting the screw 302 and the nut 402, and the first pipe 1 and the second pipe 2 can be separated by separating the screw 302 and the nut 402.

[0025] In the case implementation, the cross-section of the rod head 303 is I-shaped, the gear ring 304 is engaged with the rod head 303, and the rod head 303 is located on the inner side of the gear ring 304. By rotating the gear ring 304, all the rod heads 303 can be driven to rotate, thereby linking the screw 302 to rotate, making it convenient to disassemble and assemble the first pipe 1 and the second pipe 2.

[0026] When implementing, follow these steps:

[0027] 1) First, the insert ring 404 is inserted into the slot 305, and the second sealing sheet 405 is fitted with the first sealing sheet 306;

[0028] 2) Then rotate the gear ring 304 to drive all the rod heads 303 to rotate;

[0029] 3) Until the screw rod 302 and the nut 402 are threadedly connected.

[0030] To sum up, in the device for precise connection of stainless steel pipes, the plug ring 404 is plugged into the slot 305, and the second sealing sheet 405 is fitted with the first sealing sheet 306, so the interface between the first flange 3 and the second flange 401 is inconsistent with the interface between the first pipe 1 and the second pipe 2, and the second sealing sheet 405 and the first sealing sheet 306 make the first flange 3 and the second flange 4 have good airtightness to the first pipe 1 and the second pipe 2.

[0031] Furthermore, by rotating the gear ring 304, all the rod heads 303 can be driven to rotate, thereby linking the screw rod 302 to rotate, making it convenient to disassemble and assemble the first pipe 1 and the second pipe 2, solving the problem that the existing flange cannot meet the air tightness requirements of the precision pipe and the disassembly and assembly of multiple sets of bolts between the two flanges is inconvenient.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0033] 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 device for precision connection of stainless steel pipes, comprising a first pipe (1) and a second pipe (2), characterized in that: One end of the first pipeline (1) is connected to a first flange (3), and one end of the second pipeline (2) is connected to a second flange (4); The first flange (3) comprises a first flange (301), the first flange (301) is connected to one end of the first pipe (1), a screw (302) is connected inside the first flange (301), a rod head (303) is connected to one side of the screw (302), a gear ring (304) is connected to one side of the rod head (303), a slot (305) is provided inside the first flange (301), and a first sealing sheet (306) is connected inside the slot (305); The second flange (4) comprises a second flange (401), the second flange (401) is connected to one end of the second pipe (2), a nut (402) is connected to one side of the second flange (401), a mounting hole (403) is provided inside the second flange (401), an insert ring (404) is connected to one side of the second flange (401), and a second sealing sheet (405) is connected to the outer side of the insert ring (404).

2. The device for precision connection of stainless steel pipes according to claim 1, characterized in that: The first flange (301) is located at one end of the first pipeline (1) close to the second pipeline (2), the second flange (401) is located at one end of the second pipeline (2) close to the first pipeline (1), and the first flange (3) is in close contact with the second flange (401).

3. The device for precision connection of stainless steel pipes according to claim 1, characterized in that: The screw rod (302) passes through the first flange (301) and the second flange (401), the screw rod (302) is located inside the mounting hole (403), and one end of the screw rod (302) away from the rod head (303) is threadedly connected to the nut (402).

4. The device for precise connection of stainless steel pipes according to claim 1, characterized in that: The cross section of the rod head (303) is in the shape of an I-beam, the toothed ring (304) is meshed with the rod head (303), and the rod head (303) is located on the inner side of the toothed ring (304).

5. The device for precise connection of stainless steel pipes according to claim 1, characterized in that: The slot (305) is located at one end of the first flange (301) close to the second flange (401), the insert ring (404) is located at one side of the second flange (401) close to the first flange (301), the insert ring (404) is plugged into the slot (305), and the second sealing sheet (405) is fitted with the first sealing sheet (306).

6. The device for precise connection of stainless steel pipes according to claim 1, characterized in that: The position of the mounting hole (403) corresponds to the position of the nut (402), and the nut (402) is located on a side of the second flange (401) away from the first flange (301).

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