Assembled stainless steel pipe with good sealing effect

Abstract

The utility model relates to the technical field of stainless steel pipes, and discloses an assembled stainless steel pipe with a good sealing effect, which comprises a first steel pipe, a second steel pipe, a first flange, a second flange, a bolt and a nut. According to the utility model, the limiting hole is matched with the limiting pin and the like for use, when the nut is disassembled or fastened, the limiting pin can limit the bolt, so that when the nut is rotated to disassemble or fasten the nut, the bolt cannot rotate along with the nut, and during disassembly, a tool is not needed to fix the bolt; the nut can be directly rotated for dismounting or fastening operation, so that the connection of the steel pipe is facilitated; by arranging the inserting holes, the inserting rods and the like to be used in cooperation, when the first flange and the second flange are connected, the inserting rods can be inserted into the inserting holes, then when the first flange and the second flange are connected, the holes, allowing the bolts to penetrate through, in the first flange and the second flange are directly aligned, the bolts are conveniently installed, and then the flanges are conveniently connected.

Description

Technical Field

[0001] The utility model relates to the technical field of stainless steel pipes, in particular to an assembled stainless steel pipe with good sealing effect. Background Art

[0002] Stainless steel pipes are pipes made of stainless steel as raw material. Pipes made of stainless steel have good corrosion resistance. Therefore, they are widely used. Stainless steel pipes are generally connected through flanges. When connecting, the flanges at one end of the two pipes are aligned, and then fixed with bolts and nuts. When fixing, the bolts pass through the holes on the two flanges, then install the nuts, and then tighten the nuts.

[0003] In a detachable splicing stainless steel pipe disclosed in the authorization announcement number CN218152879U, it includes a stainless steel pipe body, the stainless steel pipe body includes a stainless steel pipe 1, one side of the stainless steel pipe 1 is fixedly connected with a connecting mechanism, the connecting mechanism includes an assembling ring piece 1, and the outer surface of the assembling ring piece 1 is fixedly connected with the outer surface of the stainless steel pipe 1. The above-mentioned assembly ring piece 1, the assembly ring piece 2, the thread groove, the leakproof groove, the gasket, the nut and the fixing bolt are used to thread the assembly ring piece 2 and the thread groove. The leakproof groove is provided inside the assembly ring piece 1, and its inner diameter matches the gasket provided on the outer surface of the assembly ring piece 2. The two can be perfectly sleeved, so that the stainless steel pipe 1 and the stainless steel pipe 2 can be sealed. When the steel pipe is used, if it needs to be disassembled, the two sections of the steel pipe can be disassembled by disassembling the nut and the fixing bolt.

[0004] However, when the above device is in use, when removing or connecting the nut and the fixing bolt, a tool is required to stabilize the fixing bolt, otherwise when the nut is rotated for removal or connection, the fixing bolt may rotate with the nut, making it impossible to remove or connect the nut.

[0005] Therefore, we propose an assembled stainless steel pipe with good sealing effect to solve the above problems. Utility Model Content

[0006] The utility model aims to solve the problems existing in the prior art and proposes an assembled stainless steel pipe with good sealing effect, which is convenient for connecting pipelines.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] An assembled stainless steel pipe with good sealing effect includes a first steel pipe, a second steel pipe, a first flange, a second flange, bolts and nuts. A limit hole is provided on one side wall of the bolt, and a limit pin is arranged in the limit hole. One end of the limit pin is fixedly connected to the first flange, and a socket is provided on one side wall of the second flange. An insertion hole is provided on one side wall of the first flange, and an insertion rod is fixedly connected to one side wall of the first flange, and one end of the insertion rod is arranged inside the insertion hole.

[0009] Preferably, a conical slot is provided on one side wall of the first flange, a conical insert ring is provided on one side wall of the second flange, a limiting groove is provided on the outer wall of the conical insert ring, and a sealing sleeve is provided in the limiting groove.

[0010] Preferably, a cushion is provided between the first flange and the second flange, and the insertion rod passes through the cushion.

[0011] Preferably, one end of the insertion rod is chamfered.

[0012] Preferably, an elastic sleeve is fixedly sleeved on the outer wall of the first steel pipe, and one end of the elastic sleeve is fixedly connected to an elastic band, and the elastic band is sleeved on the outer wall of the second steel pipe.

[0013] Preferably, the elastic sleeve is made of transparent material.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model provides a limit hole and a limit pin for use together. When the nut is disassembled or tightened, the limit pin can limit the bolt, and then when the nut is rotated to disassemble or tighten the nut, the bolt will not rotate with the nut. In this way, when disassembling, there is no need to use tools to fix the bolt, and the nut can be directly turned to perform the disassembly or tightening operation, thereby facilitating the connection of the steel pipe; by providing a socket and an insertion rod for use together, when the first flange and the second flange are connected, the insertion rod can be inserted into the socket, and then when the first flange and the second flange are connected, the holes for the bolts to pass through on the first flange and the second flange are directly aligned, which is convenient for the installation of the bolts and then for the connection of the flanges. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural schematic diagram of an assembled stainless steel pipe with good sealing effect proposed by the utility model;

[0017] Figure 2 This is a first cross-sectional structural schematic diagram of an assembled stainless steel pipe with good sealing effect proposed by the utility model;

[0018] Figure 3 This is a second cross-sectional structural schematic diagram of an assembled stainless steel pipe with good sealing effect proposed by the utility model;

[0019] Figure 4 for Figure 2 Schematic diagram of the structure enlarged at point A in the middle.

[0020] In the figure: 1. first steel pipe; 2. second steel pipe; 3. first flange; 4. second flange; 5. bolt; 6. nut; 7. limit hole; 8. limit pin; 9. plug hole; 10. plug rod; 11. conical slot; 12. conical plug ring; 13. sealing sleeve; 14. cushion; 15. elastic sleeve; 16. elastic band. 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-Figure 4 A assembled stainless steel pipe with good sealing effect includes a first steel pipe 1, a second steel pipe 2, a first flange 3, a second flange 4, a bolt 5 and a nut 6. A limit hole 7 is provided on one side wall of the bolt 5, and a limit pin 8 is arranged in the limit hole 7. One end of the limit pin 8 is fixedly connected to the first flange 3. A plug hole 9 is provided on one side wall of the second flange 4. A plug rod 10 is fixedly connected to one side wall of the first flange 3, and one end of the plug rod 10 is arranged inside the plug hole 9.

[0023] It can be seen from the above structure that: by setting the limiting hole 7 and the limiting pin 8 for use together, when removing or tightening the nut 6, the limiting pin 8 can limit the bolt 5, and then when the nut 6 is rotated to remove or tighten the nut 6, the bolt 5 will not rotate with the nut 6, so that when disassembling, there is no need to use tools to fix the bolt 5, and the nut 6 can be directly rotated for disassembly or tightening operations, thereby facilitating the connection of the steel pipe; by setting the insertion hole 9 and the insertion rod 10 for use together, when connecting the first flange 3 and the second flange 4, the insertion rod 10 can be inserted into the insertion hole 9, and then when connecting the first flange 3 and the second flange 4, the holes on the first flange 3 and the second flange 4 for the bolt 5 to pass through are directly aligned, which is convenient for the installation of the bolt 5 and then convenient for the connection of the flanges.

[0024] Furthermore, a conical slot 11 is provided on one side wall of the first flange 3, a conical plug ring 12 is provided on one side wall of the second flange 4, a limiting groove is provided on the outer wall of the conical plug ring 12, and a sealing sleeve 13 is provided in the limiting groove; by arranging the conical slot 11, the conical plug ring 12 and the sealing sleeve 13 for use together, when the first flange 3 is connected to the second flange 4, the sealing sleeve 13 can increase the sealing between the conical plug ring 12 and the conical slot 11, thereby increasing the overall sealing of the pipeline.

[0025] Furthermore, a cushion 14 is provided between the first flange 3 and the second flange 4 , and the insertion rod 10 passes through the cushion 14 ; by providing the cushion 14 , the sealing performance of the connection between the first flange 3 and the second flange 4 can be further increased.

[0026] Furthermore, one end of the insertion rod 10 is provided with a chamfer; by providing the chamfer, the insertion of the insertion rod 10 into the insertion hole 9 can be facilitated.

[0027] Furthermore, an elastic sleeve 15 is fixedly provided on the outer wall of the first steel pipe 1, and one end of the elastic sleeve 15 is fixedly connected to an elastic band 16, and the elastic band 16 is sleeved on the outer wall of the second steel pipe 2; by arranging the elastic sleeve 15 and using it in conjunction with the elastic band 16, the connection between the flanges can be covered, thereby isolating the flange connection from the outside air, and reducing the possibility of rust on parts such as the bolts 5 and nuts 6 at the flange connection.

[0028] Furthermore, the elastic sleeve 15 is made of a transparent material; by providing the elastic sleeve 15 of a transparent material, if parts such as the bolt 5 and the nut 6 are corroded, the corrosion of the parts such as the bolt 5 and the nut 6 can be directly observed, so as to facilitate the inspection of the staff.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[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. An assembled stainless steel pipe with good sealing effect, comprising a first steel pipe (1), a second steel pipe (2), a first flange (3), a second flange (4), bolts (5) and nuts (6), characterized in that: A limiting hole (7) is provided on one side wall of the bolt (5), and a limiting pin (8) is arranged in the limiting hole (7), one end of the limiting pin (8) is fixedly connected to the first flange (3), a plug hole (9) is provided on one side wall of the second flange (4), and an insertion rod (10) is fixedly connected to one side wall of the first flange (3), and one end of the insertion rod (10) is arranged inside the plug hole (9).

2. The assembled stainless steel pipe with good sealing effect according to claim 1, characterized in that: A conical slot (11) is provided on one side wall of the first flange (3), a conical insert ring (12) is provided on one side wall of the second flange (4), a limiting groove is provided on the outer wall of the conical insert ring (12), and a sealing sleeve (13) is arranged in the limiting groove.

3. The assembled stainless steel pipe with good sealing effect according to claim 1, characterized in that: A soft pad (14) is arranged between the first flange (3) and the second flange (4), and the insertion rod (10) passes through the soft pad (14).

4. The assembled stainless steel pipe with good sealing effect according to claim 1, characterized in that: One end of the insertion rod (10) is provided with a chamfer.

5. The assembled stainless steel pipe with good sealing effect according to claim 1, characterized in that: The outer wall of the first steel pipe (1) is fixedly sleeved with an elastic sleeve (15), and one end of the elastic sleeve (15) is fixedly connected with an elastic band (16), and the elastic band (16) is sleeved on the outer wall of the second steel pipe (2).

6. The assembled stainless steel pipe with good sealing effect according to claim 5, characterized in that: The elastic sleeve (15) is made of transparent material.

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