Assembled flange for pipeline connection

Abstract

The utility model relates to the technical field of flanges, discloses an assembled flange for pipeline connection, and solves the problem that the anti-loosening and anti-leakage effects of bolts are reduced due to the fact that rubber materials on the outer surfaces of the bolts are easy to be degummed after being frequently used. An assembled flange for pipeline connection comprises a first connecting pipe, a flange body, a second connecting pipe and a connecting body, a groove is formed in the upper surface of the flange body, a first internal thread is arranged on the inner wall of the groove, a first gasket is arranged below the first internal thread, a through groove is formed in the upper surface of the connecting body, and a second internal thread is arranged on the inner wall of the through groove. A first gasket is arranged above the first internal thread, a second gasket is arranged above the second internal thread, bolt assemblies are arranged in the groove and the through groove, when the threaded rod is screwed into the groove and the through groove, the external thread channel is matched with the first internal thread and the second internal thread, at the moment, the first gasket is in contact with the fourth gasket, the second gasket is in contact with the third gasket, and therefore good sealing performance is provided.

Description

Technical Field

[0001] The utility model relates to the technical field of flanges, in particular to an assembled flange for pipeline connection. Background Art

[0002] Flange is a component used to connect pipes, valves, pumps and other equipment. The flange connection can be easily disassembled and reconnected, which is convenient for repairing, replacing or cleaning components in the piping system.

[0003] The Chinese patent with the existing application number CN202021355585.6 discloses an assembled flange for pipe connection, which belongs to the field of flange technology, and includes an assembled flange body, a connector is provided on the assembled flange body, and a flow cavity is provided in the connector, annular grooves are provided at both ends of the connector, and a first connecting flange and a second connecting flange are respectively engaged in the annular grooves of the connector, and a second mounting hole is provided on the first connecting flange and the second connecting flange, a first connecting pipe is connected through the first connecting flange, and a second connecting pipe is connected through the second connecting flange, and a flow cavity is also provided between the first connecting pipe and the second connecting pipe. The assembled flange for pipe connection is used to clamp and fix the two connecting flanges through the connector, so that after the connecting flange is fixed, the gap between the connecting pipe and the flange can be greatly reduced, so that the sealing of the pipeline is enhanced, which is convenient for high-intensity use of the pipeline.

[0004] In the above technology, bolts are passed through the first mounting hole and the second mounting hole for fixing. In order to enhance the anti-loosening and anti-leakage effect of the bolts, glue is coated on the bolts in the prior art. However, the glue is easily debonded after frequent use, thereby reducing the anti-loosening and anti-leakage effect of the bolts. Utility Model Content

[0005] The utility model aims to provide an assembled flange for pipe connection. By adopting the device to work, the problem that the rubber material on the outer surface of the bolt is easy to debond after frequent use, thereby reducing the anti-loosening and anti-leakage effect of the bolt is solved.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an assembled flange for pipe connection, comprising a flange body arranged on the outer surface of a first connecting pipe and a connecting body arranged on the outer surface of a second connecting pipe, a groove is provided on the upper surface of the flange body, a first internal thread is provided on the inner wall of the groove, a first gasket is provided below the first internal thread, a through groove is provided on the upper surface of the connecting body, a second internal thread is provided on the inner wall of the through groove, a second gasket is provided above the second internal thread, the first gasket is fixedly connected to the inner wall of the groove, the second gasket is fixedly connected to the inner wall of the through groove, and bolt assemblies are provided inside the groove and the through groove;

[0007] The bolt assembly includes a threaded rod, an external threaded channel arranged on the outer surface of the threaded rod, a third washer and a fourth washer fixedly connected to the outer surface of the threaded rod, the external threaded channel is arranged between the third washer and the fourth washer, the diameters of the first washer, the second washer, the third washer and the fourth washer are all equal, and the external threaded channel is arranged corresponding to the first internal thread and the second internal thread.

[0008] Furthermore, the groove diameter of the groove is equal to the groove diameter of the through groove, and the groove and the through groove are arranged correspondingly.

[0009] Furthermore, a first annular groove is formed on the upper surface of the flange body, a first connecting block is fixedly connected to the top of the connecting body, and the first connecting block is arranged corresponding to the first annular groove.

[0010] Furthermore, a second annular groove is formed on the upper surface of the flange body, a second connecting block is fixedly connected to the top of the connecting body, and the second connecting block is arranged corresponding to the second annular groove.

[0011] Furthermore, a first sealing gasket is fixedly connected to the bottom end of the first annular groove.

[0012] Furthermore, a second sealing gasket is fixedly connected to the bottom end of the second annular groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model provides an assembled flange for pipe connection. When the threaded rod is screwed into the groove and the through groove, the external thread track matches the first internal thread and the second internal thread. At this time, the first gasket contacts the fourth gasket, and the second gasket contacts the third gasket, thereby providing good sealing performance and solving the problem that the rubber material on the outer surface of the bolt is easy to debond after frequent use, thereby reducing the anti-loosening and anti-leakage effect of the bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the flange main body structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the connector structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the connector of the utility model;

[0019] Figure 5 This is a schematic diagram of the internal structure of the flange body of the utility model;

[0020] Figure 6 This is a schematic diagram of the bolt assembly structure of the utility model.

[0021] In the figure: 1. first connecting pipe; 2. second connecting pipe; 3. flange body; 31. first annular groove; 311. first sealing gasket; 32. second annular groove; 321. second sealing gasket; 33. groove; 331. first internal thread; 332. first gasket; 4. connecting body; 41. second connecting block; 42. first connecting block; 43. through groove; 431. second internal thread; 432. second gasket; 5. bolt assembly; 51. threaded rod; 511. external thread; 52. third gasket; 53. fourth gasket. DETAILED DESCRIPTION

[0022] 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.

[0023] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0024] Combination Figure 1-Figure 5 A assembled flange for pipe connection includes a flange body 3 arranged on the outer surface of a first connecting pipe 1 and a connecting body 4 arranged on the outer surface of a second connecting pipe 2, a groove 33 is provided on the upper surface of the flange body 3, a first internal thread 331 is provided on the inner wall of the groove 33, a first gasket 332 is provided below the first internal thread 331, a through groove 43 is provided on the upper surface of the connecting body 4, a second internal thread 431 is provided on the inner wall of the through groove 43, a second gasket 432 is provided above the second internal thread 431, the first gasket 332 is fixedly connected to the inner wall of the groove 33, the second gasket 432 is fixedly connected to the inner wall of the through groove 43, and bolt assemblies 5 are provided inside the groove 33 and the through groove 43.

[0025] The utility model is further described below in conjunction with embodiments.

[0026] Embodiment 1:

[0027] See also Figure 2-Figure 6The bolt assembly 5 includes a threaded rod 51, an external threaded channel 511 arranged on the outer surface of the threaded rod 51, a third washer 52 and a fourth washer 53 fixedly connected to the outer surface of the threaded rod 51, the external threaded channel 511 is arranged between the third washer 52 and the fourth washer 53, the diameters of the first washer 332, the second washer 432, the third washer 52 and the fourth washer 53 are equal, the external threaded channel 511 is arranged corresponding to the first internal thread 331 and the second internal thread 431, the connecting body 4 is fixed to the flange body 3 through the threaded rod 51, when the threaded rod 51 is screwed into the groove 33 and the through groove 43, the external threaded channel 511 is consistent with the first internal thread 331 and the second internal thread 431, at this time, the first washer 332 is in contact with the fourth washer 53, and the second washer 432 is in contact with the third washer 52, thereby providing good sealing performance.

[0028] The groove diameter of the groove 33 is equal to the groove diameter of the through groove 43 , and the groove 33 and the through groove 43 are correspondingly arranged, which facilitates the threaded rod 51 to fix the connecting body 4 and the flange body 3 through the groove 33 and the through groove 43 .

[0029] A first annular groove 31 is formed on the upper surface of the flange body 3, and a first connecting block 42 is fixedly connected to the top of the connecting body 4. The first connecting block 42 is arranged corresponding to the first annular groove 31. The first connecting block 42 is engaged with the first annular groove 31 to facilitate fixing the connecting body 4 and the flange body 3.

[0030] A second annular groove 32 is provided on the upper surface of the flange main body 3, and a second connecting block 41 is fixedly connected to the top of the connecting body 4. The second connecting block 41 is arranged corresponding to the second annular groove 32. When the first connecting block 42 is engaged with the first annular groove 31, the second connecting block 41 is also engaged with the second annular groove 32, which facilitates the assembly of the connecting body 4 and the flange main body 3.

[0031] A first sealing gasket 311 is fixedly connected to the bottom end of the first annular groove 31 . The first sealing gasket 311 improves the sealing effect when the first connecting block 42 is connected to the first annular groove 31 .

[0032] A second sealing gasket 321 is fixedly connected to the bottom end of the second annular groove 32 . The second sealing gasket 321 improves the sealing effect when the second connecting block 41 is connected to the second annular groove 32 .

[0033] When in use, the flange body 3 is contacted with the connecting body 4 so that the groove 33 and the through groove 43 correspond to each other. At this time, the first connecting block 42 is embedded in the first annular groove 31, and the second connecting block 41 is embedded in the second annular groove 32. When the threaded rod 51 is screwed into the groove 33 and the through groove 43, the external thread 511 is consistent with the first internal thread 331 and the second internal thread 431. At this time, the first gasket 332 is in contact with the fourth gasket 53, and the second gasket 432 is in contact with the third gasket 52, thereby providing good sealing performance.

[0034] 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.

[0035] 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 flange for pipe connection, comprising a flange body (3) arranged on the outer surface of a first connecting pipe (1) and a connecting body (4) arranged on the outer surface of a second connecting pipe (2), characterized in that: The flange body (3) has a groove (33) on its upper surface, a first internal thread (331) on its inner wall, a first gasket (332) disposed below the first internal thread (331), a through groove (43) on its upper surface, a second internal thread (431) on its inner wall, a second gasket (432) disposed above the second internal thread (431), the first gasket (332) being fixedly connected to the inner wall of the groove (33), the second gasket (432) being fixedly connected to the inner wall of the through groove (43), and bolt assemblies (5) being disposed inside both the groove (33) and the through groove (43); The bolt assembly (5) comprises a threaded rod (51), an external threaded channel (511) arranged on the outer surface of the threaded rod (51), a third washer (52) and a fourth washer (53) fixedly connected to the outer surface of the threaded rod (51), the external threaded channel (511) being arranged between the third washer (52) and the fourth washer (53), the diameters of the first washer (332), the second washer (432), the third washer (52) and the fourth washer (53) being equal, and the external threaded channel (511) being arranged correspondingly to the first internal thread (331) and the second internal thread (431).

2. The assembled flange for pipe connection according to claim 1, characterized in that: The groove diameter of the groove (33) is equal to the groove diameter of the through groove (43), and the groove (33) and the through groove (43) are arranged correspondingly.

3. The assembled flange for pipe connection according to claim 1, characterized in that: The upper surface of the flange body (3) is provided with a first annular groove (31), and the top end of the connecting body (4) is fixedly connected with a first connecting block (42), and the first connecting block (42) is arranged corresponding to the first annular groove (31).

4. The assembled flange for pipe connection according to claim 1, characterized in that: The upper surface of the flange body (3) is provided with a second annular groove (32), the top end of the connecting body (4) is fixedly connected with a second connecting block (41), and the second connecting block (41) is arranged corresponding to the second annular groove (32).

5. The assembled flange for pipe connection according to claim 3, characterized in that: A first sealing gasket (311) is fixedly connected to the bottom end of the first annular groove (31).

6. The assembled flange for pipe connection according to claim 4, characterized in that: A second sealing gasket (321) is fixedly connected to the bottom end of the second annular groove (32).

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