Plug-in anti-drop flange

Abstract

The utility model discloses a plug-in anti-falling flange, which relates to the technical field of flanges and comprises a first flange plate, a second flange plate and a plug-in anti-falling flange, the second flange plate is arranged at the bottom end of the first flange plate; the inserting assembly is arranged in the middle of the first flange plate and the second flange plate and used for achieving inserting connection of the first flange plate and the second flange plate; the fixing assembly penetrates through the first flange plate and the second flange plate and is used for achieving fixed connection of the first flange plate and the second flange plate. According to the utility model, through the arrangement of the plug-in assembly, preliminary butt joint between the flange plates can be realized, so that not only is the installation efficiency improved, but also accurate centering is facilitated, and misalignment of sealing surfaces caused by installation deviation is avoided, thereby reducing the risk of medium leakage.

Description

TECHNICAL FIELD

[0001] The utility model relates to flange technical field, specifically, relate to a plug -in anti -drop formula flange. BACKGROUND

[0002] In the industrial construction and sustainable development process, as a kind of key pipe connecting component, flange is widely used in petroleum, chemical industry, natural gas, ship and building water supply and drainage and multiple fields.Its main function is to realize the reliable connection between pipe by bolt fastening mode, and ensure the sealing property of medium in transmission process, prevent any form of leakage occurs, to provide strong guarantee for the safe and stable operation of entire pipe system.

[0003] Traditional flange connection mode is usually aligned with two flanges, and is fastened by multiple bolts and supporting nuts.However, in actual application, pipe system often needs to face complex and changeable working environment.For example, the influence of pressure fluctuation, temperature change and mechanical vibration etc., can cause bolt loosening phenomenon, and then weaken the sealing performance of flange connecting part, bring potential safety hazard.In addition, if there is offset or misalignment between two flanges in installation process, it can also cause sealing not to be strict, further increase the risk of medium leakage, influence the normal operation of pipe system.

[0004] For the problems in the related art, so far no effective solution has been proposed. CONTENT OF THE UTILITY MODEL

[0005] For the problems in the related art, the utility model provides a plug-in anti-drop formula flange to overcome the above technical problems existing in prior art.

[0006] Therefore, the utility model adopts the specific technical scheme as follows:

[0007] A plug-in anti-drop formula flange, comprising: a first flange plate;Second flange plate, set in the bottom end of the first flange plate;Plug-in assembly, set in the middle of the first flange plate and the second flange plate, for realizing the plug-in connection of the first flange plate and the second flange plate;Fixed assembly, set through the first flange plate and the second flange plate, for realizing the fixed connection of the first flange plate and the second flange plate.

[0008] Further, in order to improve the fit between the first flange plate and the second flange plate, and enhance the sealing performance, the bottom end of the first flange plate is provided with a first sealing ring, the top end of the second flange plate is provided with a second sealing ring, and the structure of the second sealing ring is same with the first sealing ring, the top end of the second sealing ring is provided with a plurality of sealing grooves, the sealing grooves are inverted triangular structure, and are evenly distributed along the top end of the second sealing ring.

[0009] Further, in order to improve the installation efficiency, avoid the misalignment of the sealing surface caused by the installation deviation, the plug-in assembly comprises a plurality of insertion slots arranged at the bottom end of the first flange plate, the inner wall of the insertion slot is provided with a limiting groove, the limiting groove is provided with a limiting piece inside, the plug-in assembly further comprises a plurality of insertion blocks arranged at the top end of the second flange plate, and the insertion blocks are matched with the insertion slots and the limiting pieces, the limiting groove comprises a first groove arranged on the inner wall of the insertion slot, a second groove arranged on one side of the first groove, a through hole arranged on one side of the second groove, and a sliding groove symmetrically arranged on the inner wall of the second groove, and the limiting piece comprises an insertion rod arranged in the limiting groove, a limiting block arranged at one end of the insertion rod matched with the insertion block, a limiting plate arranged at the other end of the insertion rod, a spring arranged on the circumferential outer side of the insertion rod close to the limiting block, and a limiting rod symmetrically arranged on the circumferential outer side of the insertion rod close to the limiting plate and matched with the sliding groove.

[0010] Further, in order to further enhance the fastening force between the flange plates, form a double protection mechanism of plug-in and fixation, the fixing assembly comprises a plurality of first fixing holes arranged at the top end of the first flange plate; the fixing assembly further comprises a plurality of second fixing holes arranged at the top end of the second flange plate; the first fixing hole and the second fixing hole are provided with a bolt inside, and the bottom of the bolt is matched with a nut, and the nut is matched with the bottom end of the second flange plate through a gasket.

[0011] The beneficial effects of the utility model are:

[0012] 1、The utility model discloses a plug-in assembly can realize the initial butt joint between the flange plates, not only improves the installation efficiency, but also helps accurate centering, avoids the misalignment of the sealing surface caused by the installation deviation, thereby reduces the risk of medium leakage.

[0013] 2、The utility model discloses a fixing assembly, which further enhances the fastening force between the flange plates, forms a double protection mechanism of plug-in and fixation, not only improves the stability and reliability of the flange connection, but also improves the safety and adaptability of the overall system.

[0014] 3、The utility model discloses a first sealing ring, a second sealing ring and a sealing groove, which not only improve the adhesion between the first flange plate and the second flange plate, enhance the sealing performance, but also make the sealing ring produce elastic deformation when subjected to pressure, thereby maintaining stable sealing effect and further improving the reliability of the flange connection. DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0016] Figure 1 This is a structural schematic diagram of a plug-in anti-detachment flange according to an embodiment of the present utility model;

[0017] Figure 2 This is one of the cross-sectional views of a plug-in anti-detachment flange according to an embodiment of the present utility model;

[0018] Figure 3 yes Figure 2 A magnified view of a section at point A in the middle;

[0019] Figure 4 This is a second cross-sectional view of a plug-in anti-detachment flange according to an embodiment of the present utility model;

[0020] Figure 5 This is a third cross-sectional view of a plug-in anti-detachment flange according to an embodiment of the present utility model;

[0021] Figure 6 yes Figure 5 A magnified view of a section at point B in the middle;

[0022] Figure 7 This is a partial structural schematic diagram of a plug-in anti-detachment flange according to an embodiment of the present utility model;

[0023] Figure 8 This is a schematic diagram of the structure of a limiting component in a plug-in anti-detachment flange according to an embodiment of the present utility model.

[0024] In the picture:

[0025] 1. First flange; 2. Second flange; 3. Insertion assembly; 301. Slot; 302. Limiting groove; 3021. First groove; 3022. Second groove; 3023. Through hole; 3024. Slide groove; 303. Limiting element; 3031. Insert rod; 3032. Limiting block; 3033. Limiting plate; 3034. Spring; 3035. Limiting rod; 304. Insert block; 4. Fixing assembly; 401. First fixing hole; 402. Second fixing hole; 403. Bolt; 404. Nut; 405. Gasket; 5. First sealing ring; 6. Second sealing ring; 7. Sealing groove. Detailed Implementation

[0026] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0027] According to an embodiment of the present invention, a plug-in anti-detachment flange is provided.

[0028] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figures 1-8 As shown, the plug-in anti-detachment flange according to an embodiment of the present utility model includes: a first flange 1; a second flange 2 disposed at the bottom end of the first flange 1; a plug-in assembly 3 disposed in the middle of the first flange 1 and the second flange 2, used to realize the plug-in connection between the first flange 1 and the second flange 2; and a fixing assembly 4 disposed through the first flange 1 and the second flange 2, used to realize the fixed connection between the first flange 1 and the second flange 2.

[0029] By utilizing the above-described technical solution of this utility model, the initial connection between flanges can be achieved through the insertion assembly 3. This not only improves installation efficiency but also facilitates accurate alignment, preventing misalignment of the sealing surfaces due to installation deviations and thus reducing the risk of media leakage. The fixing assembly 4 further enhances the tightening force between flanges, forming a dual guarantee mechanism of insertion and fixing. This not only improves the stability and reliability of the flange connection but also enhances the safety and adaptability of the overall system.

[0030] In one embodiment, for the first flange 1, a first sealing ring 5 is provided at the bottom center of the first flange 1, and a second sealing ring 6 is provided at the top center of the second flange 2. The second sealing ring 6 has the same structure as the first sealing ring 5. A plurality of sealing grooves 7 are provided at the top of the second sealing ring 6. The sealing grooves 7 have an inverted triangular structure and are evenly distributed around the top circumference of the second sealing ring 6, thereby improving the fit between the first flange 1 and the second flange 2 and enhancing the sealing performance.

[0031] In one embodiment, the plug-in assembly 3 includes a plurality of slots 301 formed at the bottom of the first flange 1, a limiting groove 302 formed on the inner wall of the slots 301, and a limiting member 303 disposed inside the limiting groove 302. The plug-in assembly 3 also includes a plurality of insert blocks 304 disposed at the top of the second flange 2, and the insert blocks 304 cooperate with the slots 301 and the limiting members 303. The limiting groove 302 includes a first groove 3021 formed on the inner wall of the slot 301, a second groove 3022 formed on one side of the first groove 3021, and a through hole 3023 formed on one side of the second groove 3022. The inner wall of the groove 3022 is symmetrically provided with sliding grooves 3024. The limiting member 303 includes an insert rod 3031 disposed inside the limiting groove 302. One end of the insert rod 3031 is provided with a limiting block 3032 that cooperates with the insert block 304. The other end of the insert rod 3031 is provided with a limiting plate 3033. A spring 3034 is provided on the outer circumference of the insert rod 3031 near the limiting block 3032. Limiting rods 3035 are symmetrically provided on the outer circumference of the insert rod 3031 near the limiting plate 3033. The limiting rods 3035 cooperate with the sliding groove 3024, thereby improving installation efficiency and avoiding misalignment of the sealing surface due to installation deviation.

[0032] In one embodiment, the fixing component 4 includes a plurality of first fixing holes 401 formed at the top of the first flange 1; the fixing component 4 also includes a plurality of second fixing holes 402 formed at the top of the second flange 2; bolts 403 are provided inside the first fixing holes 401 and the second fixing holes 402, and the bottom of the bolts 403 cooperates with the nuts 404, and the nuts 404 cooperate with the bottom of the second flange 2 through a gasket 405, thereby further enhancing the fastening force between the flanges and forming a dual guarantee mechanism of insertion and fixing.

[0033] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0034] In practical applications, the first flange 1 and the second flange 2 are aligned, and the limiting member 303 is pulled outward to insert the insertion block 304 into the slot 301. At this time, the limiting member 303 is released, and under the elastic action of the spring 3034, the limiting block 3032 is reset and engages with the insertion block 304, thereby realizing a quick insertion connection between the first flange 1 and the second flange 2, and assisting in the alignment and initial fixation of the two. After the insertion is completed, the bolts 403 are sequentially inserted into the first fixing hole 401 on the first flange 1 and the second fixing hole 402 on the second flange 2, and tightened with the gasket 405 and nut 404 to achieve a firm connection between the first flange 1 and the second flange 2, further improving the stability and reliability of the overall flange connection structure. In addition, the first sealing ring 5 and the second sealing ring 6 are provided with sealing grooves 7 in the form of inverted triangles. When the first flange 1 and the second flange 2 are pressed together, the sealing grooves 7 can form multiple contact surfaces, thereby improving the fit between the two flanges, enhancing the sealing performance, and reducing the risk of media leakage.

[0035] In summary, by utilizing the above-mentioned technical solution of this utility model, the initial connection between flanges can be achieved by setting the plug-in component 3, which not only improves installation efficiency but also helps to accurately align the flanges, avoiding misalignment of the sealing surfaces due to installation deviations, thereby reducing the risk of media leakage. The fixing component 4 further enhances the fastening force between the flanges, forming a dual guarantee mechanism of plug-in and fixing, which not only improves the stability and reliability of the flange connection but also enhances the safety and adaptability of the overall system. The first sealing ring 5, the second sealing ring 6, and the sealing groove 7 not only improve the fit between the first flange 1 and the second flange 2, enhancing the sealing performance, but also allow the sealing rings to undergo elastic deformation under pressure, thereby maintaining a stable sealing effect and further improving the reliability of the flange connection.

[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A plug-in anti-detachment flange, characterized in that, include: First flange (1); The second flange (2) is disposed at the bottom end of the first flange (1); The plug-in assembly (3) is disposed in the middle of the first flange (1) and the second flange (2) to realize the plug-in connection between the first flange (1) and the second flange (2); A fixing component (4) is disposed through the first flange (1) and the second flange (2) to achieve a fixed connection between the first flange (1) and the second flange (2).

2. The plug-in anti-detachment flange according to claim 1, characterized in that, A first sealing ring (5) is provided at the bottom center of the first flange (1), and a second sealing ring (6) is provided at the top center of the second flange (2), and the second sealing ring (6) has the same structure as the first sealing ring (5).

3. The plug-in anti-detachment flange according to claim 2, characterized in that, The top end of the second sealing ring (6) is provided with several sealing grooves (7), which are in the shape of an inverted triangle and are evenly distributed around the top end of the second sealing ring (6).

4. The plug-in anti-detachment flange according to claim 1, characterized in that, The plug-in assembly (3) includes a plurality of slots (301) formed at the bottom end of the first flange (1), the inner wall of the slots (301) is provided with a limiting groove (302), and the limiting groove (302) is provided with a limiting element (303) inside.

5. A plug-in anti-detachment flange according to claim 4, characterized in that, The plug-in assembly (3) further includes a plurality of plug blocks (304) disposed at the top of the second flange (2), and the plug blocks (304) cooperate with the slot (301) and the limiting member (303).

6. A plug-in anti-detachment flange according to claim 5, characterized in that, The limiting groove (302) includes a first groove (3021) formed on the inner wall of the slot (301), a second groove (3022) formed on one side of the first groove (3021), a through hole (3023) formed on one side of the second groove (3022), and sliding grooves (3024) symmetrically formed on the inner wall of the second groove (3022).

7. A plug-in anti-detachment flange according to claim 6, characterized in that, The limiting member (303) includes a rod (3031) disposed inside the limiting groove (302). One end of the rod (3031) is provided with a limiting block (3032) that cooperates with the insert block (304). The other end of the rod (3031) is provided with a limiting plate (3033). A spring (3034) is provided on the outer circumference of the rod (3031) near the limiting block (3032). Limiting rods (3035) are symmetrically provided on the outer circumference of the rod (3031) near the limiting plate (3033), and the limiting rods (3035) cooperate with the sliding groove (3024).

8. A plug-in anti-detachment flange according to claim 1, characterized in that, The fixing component (4) includes a plurality of first fixing holes (401) formed at the top of the first flange (1); The fixing component (4) also includes a plurality of second fixing holes (402) formed at the top of the second flange (2); Bolts (403) are provided inside the first fixing hole (401) and the second fixing hole (402), and the bottom of the bolt (403) is engaged with the nut (404). The nut (404) is engaged with the bottom end of the second flange (2) through a gasket (405).

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