A flange connection structure

Abstract

This utility model relates to the field of flange technology, specifically a flange connection structure. It includes a first connecting flange, a second connecting flange, an annular sealing gasket, and an annular rotating housing. Multiple limiting rods are connected in an annular array along the upper edge of the first connecting flange; the second connecting flange has multiple limiting holes for inserting the limiting rods; the annular sealing gasket is located between the first and second connecting flanges; the annular rotating housing is rotatably mounted on the outer periphery of the first connecting flange, and a first thread is provided on the inner wall of the annular rotating housing; a second thread, compatible with the first thread, is provided on the outer periphery of the second connecting flange. This technical solution uses a threaded connection between the annular rotating housing and the second connecting flange, and then locks them together with wing bolts. Compared to the traditional method of using multiple sets of bolts and nuts, this method has the advantages of fewer connecting parts, a simplified structure, and lower installation difficulty.

Description

Technical Field

[0001] This utility model relates to the field of flange technology, and in particular to a flange connection structure. Background Technology

[0002] A flange is a component used to connect pipes to each other, attached to the pipe ends. Flanges have holes, and bolts are used to secure two flanges together. A gasket is used for sealing between flanges. A flange is a disc-shaped component, most commonly found in piping systems, and flanges are always used in pairs. In piping systems, flanges are primarily used for connecting pipes.

[0003] However, existing traditional connection methods usually have the following technical drawbacks: operators need to tighten multiple bolts and nuts one by one, which not only consumes a lot of time and manpower, but also leads to problems such as high operation difficulty, low installation efficiency, and inconvenience for disassembly and assembly. Utility Model Content

[0004] The purpose of this utility model is to address the problems existing in the background technology by proposing a flange connection structure.

[0005] The technical solution of this utility model is a flange connection structure, comprising:

[0006] The first connecting flange has multiple limit rods connected in a ring array along its upper edge.

[0007] The second connecting flange has multiple limiting holes for inserting multiple limiting rods.

[0008] An annular sealing gasket is disposed between the first connecting flange and the second connecting flange;

[0009] An annular rotating housing is rotatably mounted on the outer periphery of a first connecting flange. A first thread is provided on the inner wall of the annular rotating housing, and a second thread adapted to the first thread is provided on the outer periphery of the second connecting flange. A second limiting block is connected to the annular rotating housing, and a wing bolt is threadedly connected to the second limiting block. A first limiting block is connected to the second connecting flange, and a limiting groove is provided on the first limiting block for the end of the wing bolt to be screwed into.

[0010] Preferably, two sets of drive components are installed on the outer periphery of the annular rotating housing. The drive components include a rotating rod and a U-shaped connector. The U-shaped connector is connected to the outer wall of the annular rotating housing. The end of the rotating rod is rotatably installed inside the U-shaped connector. An elastic band connects the rotating rod and the U-shaped connector.

[0011] Preferably, the rotating rod has an arc-shaped structure.

[0012] Preferably, multiple sealing rings are provided on both sides of the annular sealing gasket, and the sealing rings are integrally formed with the annular sealing gasket. A first sealing groove that fits with the sealing ring is provided on the first connecting flange, and a second sealing groove that fits with the sealing ring is provided on the second connecting flange.

[0013] Preferably, a sealing ring is connected to the inner ring of the second connecting flange, and when the first connecting flange is connected to the second connecting flange, the sealing ring is located inside the ring of the second connecting flange.

[0014] Preferably, the limiting rod extends beyond the outer end of the annular rotating housing.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects:

[0016] This technical solution uses a ring-shaped rotating housing and a second connecting flange connected by threads, and then locked by wing bolts. Compared with the traditional method of connecting multiple sets of bolts and nuts, it has the advantages of fewer connecting parts, simpler structure and lower installation difficulty. It can quickly complete the disassembly and assembly of the first connecting flange and the second connecting flange, thereby improving the disassembly and assembly efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 and Figure 3 All are exploded views of this utility model.

[0019] Reference numerals: 1. First connecting flange; 101. First sealing groove; 2. Second connecting flange; 201. Limiting hole; 202. Second sealing groove; 3. Annular sealing gasket; 4. Rotating rod; 5. Annular rotating housing; 6. Elastic band; 7. Limiting insert; 8. First limiting block; 801. Limiting groove; 9. Second limiting block; 10. Wing bolt; 11. Sealing ring; 121. First thread; 122. Second thread; 13. U-shaped connector. Detailed Implementation

[0020] Example 1

[0021] like Figures 1-3 As shown, the flange connection structure proposed in this embodiment includes a first connecting flange 1, a second connecting flange 2, an annular sealing gasket 3, and an annular rotating housing 5.

[0022] Multiple limiting rods 7 are connected in a ring array along the upper edge of the first connecting flange 1. The limiting rods 7 extend beyond the outer end of the annular rotating housing 5. This arrangement allows the end of the limiting rod 7 to be inserted into the limiting hole 201 during the initial installation phase, thereby completing the horizontal limiting of the first connecting flange 1 and the second connecting flange 2.

[0023] The second connecting flange 2 has multiple limiting holes 201 for inserting multiple limiting rods 7; a sealing ring 11 is connected to the inner ring of the second connecting flange 2. When the first connecting flange 1 is connected to the second connecting flange 2, the sealing ring 11 is located inside the ring of the second connecting flange 2. The sealing ring 11 is used to block the annular sealing gasket 3, prevent liquid from directly impacting the edge of the annular sealing gasket 3, and improve the service life of the annular sealing gasket 3.

[0024] An annular sealing gasket 3 is disposed between the first connecting flange 1 and the second connecting flange 2. Multiple sealing rings are provided on both sides of the annular sealing gasket 3. The sealing rings are integrally formed with the annular sealing gasket 3. A first sealing groove 101 that fits with the sealing ring is opened on the first connecting flange 1, and a second sealing groove 202 that fits with the sealing ring is opened on the second connecting flange 2. The above structure can increase the contact area between the annular sealing gasket 3 and the first connecting flange 1 and between the annular sealing gasket 3 and the second connecting flange 2, thereby improving the sealing effect.

[0025] The annular rotating housing 5 is rotatably mounted on the outer periphery of the first connecting flange 1. The inner wall of the annular rotating housing 5 is provided with a first thread 121, and the outer periphery of the second connecting flange 2 is provided with a second thread 122 that is compatible with the first thread 121. A second limiting block 9 is connected to the annular rotating housing 5, and a wing bolt 10 is threadedly connected to the second limiting block 9. A first limiting block 8 is connected to the second connecting flange 2, and a limiting groove 801 is provided on the first limiting block 8 for the end of the wing bolt 10 to be screwed into.

[0026] The working principle of this technical solution is as follows:

[0027] Before installation, place the annular sealing gasket 3 between the first connecting flange 1 and the second connecting flange 2. When connecting the first connecting flange 1 and the second connecting flange 2, align the multiple limiting rods 7 with the multiple limiting holes 201 respectively. Since the limiting rods 7 extend beyond the outer end of the annular rotating housing 5, the ends of the limiting rods 7 can be inserted into the inner side of the limiting holes 201 in the initial state, thereby completing the horizontal limiting work between the first connecting flange 1 and the second connecting flange 2. Then drive the annular rotating housing 5 to rotate, so that the first thread 121 and the second thread 122 are threadedly connected, resulting in the second connecting flange... The distance between flange 2 and the first connecting flange 1 gradually decreases. When the first limiting block 8 and the second limiting block 9 are aligned, the threaded connection between the annular rotating housing 5 and the second connecting flange 2 is completed, which can further limit the connection between the second connecting flange 2 and the first connecting flange 1. Finally, the operator drives the wing bolt 10 to rotate so that its end is screwed into the inner side of the limiting groove 801, thereby completing the horizontal limiting of the annular rotating housing 5 and preventing horizontal displacement between the annular rotating housing 5 and the second connecting flange 2, so as to improve the stability of the connection between the first connecting flange 1 and the second connecting flange 2.

[0028] In summary, this technical solution uses a threaded connection between the annular rotating housing 5 and the second connecting flange 2, and then locks them together with wing bolts 10. Compared with the traditional method of using multiple sets of bolts and nuts, this connection structure is simplified and can quickly complete the disassembly and assembly of the first connecting flange 1 and the second connecting flange 2, thus improving installation efficiency.

[0029] Example 2

[0030] like Figure 2 As shown, in this embodiment, a flange connection structure is proposed. Compared with the first embodiment, in this embodiment, two sets of driving components are installed on the outer periphery of the annular rotating housing 5. The driving components include a rotating rod 4 and a U-shaped connector 13. The U-shaped connector 13 is connected to the outer wall of the annular rotating housing 5. The end of the rotating rod 4 is rotatably installed on the inner side of the U-shaped connector 13. An elastic band 6 is connected between the rotating rod 4 and the U-shaped connector 13.

[0031] The rotating rod 4 has an arc-shaped structure, which allows it to fit snugly against the outer periphery of the annular rotating housing 5, reducing the space it occupies.

[0032] In this embodiment, since the surface of the annular rotating housing 5 is a smooth structure, its driving process is relatively laborious. However, in this technical solution, by setting a rotatable rotating rod 4, the power arm of the rotating rod 4 can be increased. The longer the power arm, the less effort is required. The operator lifts the outer end of the rotating rod 4 and then holds the end of the rotating rod 4 to rotate the annular rotating housing 5. The above-mentioned structure makes it easy for the operator to drive the annular rotating housing 5 to rotate. The two sets of driving components are used to drive the annular rotating housing 5 to tighten and loosen respectively.

[0033] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A flange connection structure, characterized in that, include: The first connecting flange (1) has multiple limiting rods (7) connected in a ring array along its upper edge; The second connecting flange (2) has multiple limiting holes (201) for multiple limiting rods (7) to be inserted. An annular sealing gasket (3) is disposed between the first connecting flange (1) and the second connecting flange (2); An annular rotating housing (5) is rotatably mounted on the outer periphery of the first connecting flange (1). The inner wall of the annular rotating housing (5) is provided with a first thread (121), and the outer periphery of the second connecting flange (2) is provided with a second thread (122) that is compatible with the first thread (121). A second limiting block (9) is connected to the annular rotating housing (5), and a wing bolt (10) is threaded onto the second limiting block (9). A first limiting block (8) is connected to the second connecting flange (2), and a limiting groove (801) is provided on the first limiting block (8) for the end of the wing bolt (10) to be screwed into.

2. The flange connection structure according to claim 1, characterized in that, Two sets of drive components are installed on the outer periphery of the annular rotating housing (5). The drive components include a rotating rod (4) and a U-shaped connector (13). The U-shaped connector (13) is connected to the outer wall of the annular rotating housing (5). The end of the rotating rod (4) is rotatably installed inside the U-shaped connector (13). An elastic band (6) is connected between the rotating rod (4) and the U-shaped connector (13).

3. The flange connection structure according to claim 1, characterized in that, The rotating rod (4) has an arc-shaped structure.

4. The flange connection structure according to claim 1, characterized in that, Multiple sealing rings are provided on both sides of the annular sealing gasket (3). The sealing rings are integrally formed with the annular sealing gasket (3). A first sealing groove (101) that fits the sealing ring is provided on the first connecting flange (1), and a second sealing groove (202) that fits the sealing ring is provided on the second connecting flange (2).

5. A flange connection structure according to claim 1, characterized in that, A sealing ring (11) is connected to the inner ring of the second connecting flange (2). When the first connecting flange (1) is connected to the second connecting flange (2), the sealing ring (11) is located inside the opening of the second connecting flange (2).

6. A flange connection structure according to claim 1, characterized in that, The limiting rod (7) extends beyond the outer end of the annular rotating housing (5).

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