Flange structure sealing connection device

Abstract

The utility model discloses a flange structure sealing connection device, and relates to the technical field of flanges, the flange structure sealing connection device comprises a first flange, a first flange plate is arranged on the surface of the first flange, the first flange plate is connected with the first flange through welding, and a second flange plate is connected to the surface of the first flange plate. A second flange is arranged on one side of the second flange plate, the second flange and the second flange plate are connected through welding, the limiting structure is arranged on the surface of the second flange plate, the limiting structure comprises mounting grooves, the mounting grooves are annularly distributed, limiting grooves are formed in the inner surfaces of the mounting grooves, and the limiting grooves are arranged in the limiting grooves. According to the scheme, the problems that when an existing device is used for fixing the sealing gasket, no limiting structure exists, a large amount of time is wasted inevitably for operation, the installation efficiency is low, and existing market requirements cannot be met are solved.

Description

Technical Field

[0001] This utility model relates to the field of flange technology, specifically to a flange structure sealing connection device. Background Technology

[0002] A flange, also called a flange plate or flange disc, is a component used to connect pipes to each other. It is attached to the pipe end and is a common mechanical connection part, usually with a disc-shaped structure. It is used to connect pipelines, equipment, or mechanical components. Two flange plates are tightened with bolts and a gasket is used to achieve a sealed connection, preventing media leakage. Flanges are widely used in industrial fields, covering petrochemicals, energy and power, shipbuilding, wind power generation, and other industries, and are indispensable connecting parts in piping systems and equipment.

[0003] For example, the sealing connection structure named CN206929462U is a flange. The device includes a flange and a connecting plate. The flange has an annular groove, and a sealing gasket is placed in the groove. The connecting plate has a protruding pressing block that corresponds to the groove and is arranged in an annular shape. When the flange and the connecting plate are tightened together by screws, the pressing block touches the sealing gasket and drives the circumference of the sealing gasket to expand and keep it pressed against the inner wall of the groove.

[0004] The aforementioned device lacks a limiting structure when fixing the sealing gasket, inevitably wasting a significant amount of time in the process. Consequently, its installation efficiency is low and cannot meet current market demands. Therefore, we have proposed a flange structure sealing connection device to address the aforementioned issues. Utility Model Content

[0005] The purpose of this utility model is to provide a flange structure sealing connection device to solve the problem mentioned in the background art that the existing device has no limiting structure when fixing the sealing gasket, which inevitably wastes a lot of time in operation, resulting in low installation efficiency and failing to meet the current market demand.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a flange structure sealing connection device, comprising a first flange, a first flange plate being provided on the surface of the first flange, and the first flange plate being connected to the first flange by welding, a second flange plate being connected to the surface of the first flange plate, a second flange plate being provided on one side of the second flange plate, and the second flange plate being connected to the second flange plate by welding.

[0007] Also includes:

[0008] A limiting structure is provided on the surface of the second flange. The limiting structure includes a mounting groove, which is distributed in a ring. A limiting groove is formed on the inner surface of the mounting groove, and the limiting groove is fixedly connected to the mounting groove. A spring is provided inside the mounting groove, and the bottom end of the spring is fixedly connected to the mounting groove. The other end of the spring is connected to a baffle, and the baffle is installed in the limiting groove.

[0009] Preferably, the surface of the first flange is provided with a plug, and the plug is connected to the first flange by welding, and multiple sets of plugs are provided.

[0010] Preferably, the surface of the second flange has a slot, and the slot engages with the insert block.

[0011] Preferably, the surface of the first flange is provided with a positioning block, and the positioning block is fixedly connected to the first flange; the surface of the second flange is provided with a positioning groove, and the positioning groove is engaged with the positioning block.

[0012] Preferably, the surfaces of the first flange and the second flange are provided with threaded grooves, and the threaded grooves are fixed openings, and multiple sets of threaded grooves are provided.

[0013] Preferably, the surface of the first flange is fitted with bolts, the bolts are threaded into the threaded groove, the surface of the bolts is fitted with mounting washers, and the end of the bolts is fitted with nuts, the nuts being threaded into the bolts.

[0014] Preferably, a sealing gasket is installed on the surface of the mounting groove, and the sealing gasket is movably connected to the mounting groove.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention, by setting an installation groove and a limiting groove, allows a spring to be installed on the surface of the installation groove, thereby enabling a baffle to move and be limited on the surface of the limiting groove. The spring allows the baffle to move, which in turn moves the sealing gasket, allowing the sealing gasket to enter the installation groove and thus limiting its position. The flange is then connected, achieving the effect of limiting the sealing gasket. The operation is simple, greatly improving the practicality of the device and increasing installation efficiency. It solves the problem of traditional devices lacking a limiting structure when fixing the sealing gasket, inevitably wasting a lot of time and resulting in low installation efficiency. Attached Figure Description

[0017] Figure 1 This is a three-dimensional view of the overall structure of this utility model;

[0018] Figure 2 This is a top view of the overall structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0020] Figure 4 This is a structural diagram of the limiting component of this utility model;

[0021] In the diagram: 1. First flange; 2. Second flange; 3. First flange plate; 4. Second flange plate; 5. Threaded groove; 6. Bolt; 7. Nut; 8. Mounting gasket; 9. Locating block; 10. Locating groove; 11. Limiting structure; 12. Mounting groove; 13. Limiting groove; 14. Spring; 15. Baffle; 16. Sealing gasket; 17. Insert block; 18. Slot. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figures 1-4 An embodiment of this utility model provides a flange structure sealing connection device, comprising a first flange 1, a first flange 3 on the surface of the first flange 1, and the first flange 3 being connected to the first flange 1 by welding, a second flange 4 connected to the surface of the first flange 3, a second flange 2 on one side of the second flange 4, and the second flange 2 being connected to the second flange 4 by welding.

[0024] Also includes:

[0025] A limiting structure 11 is provided on the surface of the second flange 4. The limiting structure 11 includes a mounting groove 12, which is arranged in a ring. A limiting groove 13 is formed on the inner surface of the mounting groove 12, and the limiting groove 13 is fixedly connected to the mounting groove 12. A spring 14 is provided inside the mounting groove 12, and the bottom end of the spring 14 is fixedly connected to the mounting groove 12. The other end of the spring 14 is connected to a baffle 15, and the baffle 15 is installed in the limiting groove 13.

[0026] First, a force is applied to the sealing gasket 16, causing it to move to one end. This causes the sealing gasket 16 to press against the baffle 15, which in turn causes the baffle 15 to move to one end and press against the spring 14. This causes the spring 14 to undergo elastic deformation, allowing part of the sealing gasket 16 to enter the mounting groove 12. Then, the flange is connected.

[0027] Please see Figure 1The surface of the first flange 1 is provided with a plug 17, and the plug 17 is connected to the first flange 1 by welding. Multiple sets of plug 17 are provided. The surface of the second flange 2 is provided with a slot 18, and the slot 18 is engaged with the plug 17. When this product is in use, the structure of the plug 17 and the slot 18 provides clear installation guidance for the connecting parts when installing the flange, making it easier to position during the installation process.

[0028] Please see Figure 3 The surface of the first flange 3 is provided with a positioning block 9, and the positioning block 9 is fixedly connected to the first flange 3. The surface of the second flange 4 is provided with a positioning groove 10, and the positioning groove 10 is engaged with the positioning block 9. When this product is in use, in the flange connection, the positioning block 9 and the positioning groove 10 can ensure that the flange is accurately aligned and avoid misalignment of the sealing surface due to installation deviation.

[0029] Please see Figure 3 The surfaces of the first flange 3 and the second flange 4 are provided with threaded grooves 5, and the threaded grooves 5 are fixed openings. Multiple sets of threaded grooves 5 are provided. When this product is in use, the threaded grooves 5 allow the bolts 6 to pass through.

[0030] Please see Figure 3 Bolts 6 are installed on the surface of the first flange 3. Bolts 6 are threadedly connected to threaded grooves 5. An installation gasket 8 is installed on the surface of bolts 6. A nut 7 is connected to the end of bolts 6 and is threadedly connected to bolts 6. When this product is in use, bolts 6 and nuts 7 are the core fastening elements. By applying preload, the flanges are connected as a whole, which plays a key role in transmitting loads, maintaining seals, and resisting external working conditions.

[0031] Please see Figure 1 A sealing gasket 16 is installed on the surface of the mounting groove 12, and the sealing gasket 16 is movably connected to the mounting groove 12. When this product is in use, the sealing gasket 16 is the core component that determines the reliability of the connection. Through the synergistic effect of material properties and structural design, it achieves zero leakage of the medium, adaptability to working conditions, and connection durability.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A flange structure sealing connection device, comprising a first flange (1), the surface of the first flange (1) is provided with a first flange plate (3), and the first flange plate (3) is connected with the first flange (1) by welding, the surface of the first flange plate (3) is connected with a second flange plate (4), one side of the second flange plate (4) is provided with a second flange (2), and the second flange (2) is connected with the second flange plate (4) by welding; characterized in that Further comprising: A limiting structure (11) is arranged on the surface of the second flange plate (4), the limiting structure (11) comprises a mounting groove (12), the mounting groove (12) is annularly distributed, a limiting groove (13) is arranged on the inner surface of the mounting groove (12), and the limiting groove (13) is fixedly connected with the mounting groove (12), a spring (14) is arranged in the mounting groove (12), the bottom end of the spring (14) is fixedly connected with the mounting groove (12), the other end of the spring (14) is connected with a baffle (15), and the baffle (15) is arranged in the limiting groove (13).

2. The flange structure seal connection apparatus according to claim 1, characterized by: The surface of the first flange (1) is provided with an insertion block (17), and the insertion block (17) is connected with the first flange (1) by welding, and the insertion block (17) is provided with multiple groups.

3. The flange structure sealing connection apparatus according to claim 1, characterized by: The surface of the second flange (2) is provided with an insertion slot (18), and the insertion slot (18) is connected with the insertion block (17) in a clamping manner.

4. The flange structure sealing connection apparatus according to claim 1, characterized by: The surface of the first flange plate (3) is provided with a positioning block (9), and the positioning block (9) is fixedly connected with the first flange plate (3), the surface of the second flange plate (4) is provided with a positioning slot (10), and the positioning slot (10) is connected with the positioning block (9) in a clamping manner.

5. The flange construction sealed joint device according to claim 1, characterized in that: The surfaces of the first flange plate (3) and the second flange plate (4) are provided with a threaded groove (5), the threaded groove (5) is a fixed opening, and the threaded groove (5) is provided with multiple groups.

6. The flange construction sealed joint device according to claim 1, characterized in that: The surface of the first flange plate (3) is provided with a bolt (6), the bolt (6) is threadedly connected with the threaded groove (5), the surface of the bolt (6) is provided with a mounting gasket (8), the end of the bolt (6) is connected with a nut (7), and the nut (7) is threadedly connected with the bolt (6).

7. The flange construction sealed connection apparatus according to claim 1, wherein: The surface of the mounting groove (12) is provided with a sealing gasket (16), and the sealing gasket (16) is movably connected with the mounting groove (12).

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