Flange convenient to connect

By using flanges made of manganese steel and designed with a foolproof mechanism, the problems of deformation and bolt diagonal alignment during welding of traditional flanges have been solved, achieving efficient and stable pipeline connections.

CN224162221UActive Publication Date: 2026-04-24郭宪平
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
郭宪平
Filing Date
2025-06-12
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Traditional flange connections are prone to heat deformation during pipe welding, making it difficult to fix the connection in place. Furthermore, the bolts need to be placed diagonally, resulting in low efficiency.

Method used

The flange is made of manganese steel and features a flange neck and a foolproof mechanism. The snap-fit ​​structure facilitates pipe positioning and angle fixing, and the rubber gasket groove prevents the sealing ring from shifting, simplifying the bolt connection process.

Benefits of technology

It improves the strength of the flange, prevents heat deformation, saves adjustment time and bolt tightening time, and improves connection efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224162221U_ABST
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Abstract

The utility model provides a flange convenient to connect, which relates to the technical field of flanges and comprises a main body, a hasp and a fool-proof mechanism, the hasp is arranged on the front side of the main body, a flange neck is arranged at the top of the main body, a bolt hole is arranged on one side of the flange neck, the fool-proof mechanism is arranged at the bottom of the main body, and a protrusion is arranged on one side of the bolt hole. The flange convenient to connect is made of manganese steel, the strength of the flange is improved, hole dislocation caused by deformation due to heating and stress is prevented, pipeline positioning and connecting are facilitated by arranging the flange neck, the angle of the flange can be fixed by arranging the fool-proof mechanism, the flange is prevented from rotating, and the adjusting time is saved; hole deviation caused by straightness change during bolt screwing is prevented, bolts on diagonal lines are not needed any more, bolt screwing time is saved, a rubber pad groove is formed, the sealing ring is prevented from shifting to block holes, connection is prevented from being affected, and efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of flange technology, and in particular to a flange that is easy to connect. Background Technology

[0002] A flange, also called a flange plate or flange, is a widely used connecting component in the engineering field. It is a part used to connect shafts to each other and to connect pipe ends. Flanges are also used on equipment inlets and outlets to connect two pieces of equipment. Therefore, flange technology that facilitates connection has been widely studied and applied.

[0003] Traditional flange connections require applying sealant to both ends of the connection before using bolts and nuts to connect the flanges together. While this connection method is reliable, it is prone to heat deformation when welded to pipes, is difficult to fix in position during connection, and requires bolts to be placed diagonally, resulting in low efficiency.

[0004] Therefore, we provide a flange that is easy to connect. Utility Model Content

[0005] The purpose of this invention is to provide a flange that is easy to connect, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a flange that is easy to connect, comprising a body, a latch, and a foolproof mechanism. The front of the body is provided with a latch, the top of the body is provided with a flange neck, one side of the flange neck is provided with a bolt hole, the bottom of the body is provided with a foolproof mechanism, one side of the bolt hole is provided with a protrusion, the other side of the bolt hole is provided with a fixing groove, one side of the fixing groove is provided with a rubber gasket groove, and a bolt is provided inside the bolt hole.

[0007] Preferably, the main body is made of manganese steel, and two sets of the main body are required to be used together.

[0008] Preferably, an upper groove is welded to the left side of the main body, and a fixing block is welded to the front of the main body. The inside of the fixing block is connected to one end of a short shaft, and the other end of the short shaft is connected to a movable buckle. The inside of the fixing block is rotatably connected to the movable buckle through the short shaft, and a retaining ring is provided inside the movable buckle.

[0009] Preferably, the flange neck is frustum-shaped, and the body and flange neck are sized to match.

[0010] Preferably, the protrusion matches the size of the fixed groove, and four sets of the foolproof mechanism are provided.

[0011] Preferably, the main body is sized to match the rubber pad groove, and the rubber pad groove is sized to match the rubber pad.

[0012] Preferably, the bolt holes are evenly distributed on the main body, and the size of the bolt holes is larger than the size of the bolts.

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

[0014] This easy-to-connect flange is made of manganese steel to improve its strength and prevent deformation caused by heat and stress, which could lead to misalignment of the holes. The flange neck facilitates pipe positioning and connection, and the foolproof mechanism can fix the flange angle, prevent the flange from rotating, and save adjustment time.

[0015] By setting up a snap fastener, the two flanges can be tightly fitted together first, preventing changes in straightness during bolt tightening that could cause misalignment of the hole. This eliminates the need for diagonal bolts, saving bolt tightening time. By setting up a rubber gasket groove, the sealing ring can be prevented from shifting and blocking the hole, thus improving efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the top surface structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the bottom surface structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the appearance structure of the clasp of this utility model;

[0019] Figure 4 This is a side view of the assembled parts of this utility model.

[0020] The following are the labels in the diagram: 1. Main body; 2. Buckle; 201. Upper groove; 202. Fixing block; 203. Short shaft; 204. Movable buckle; 205. Snap ring; 3. Flange neck; 4. Bolt hole; 5. Foolproof mechanism; 501. Protrusion; 502. Fixing groove; 6. Rubber gasket groove; 7. Bolt. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4This utility model provides a technical solution: a flange that is easy to connect, including a main body 1, a latch 2 and a foolproof mechanism 5. The latch 2 is provided on the front of the main body 1, the flange neck 3 is provided on the top of the main body 1, the bolt hole 4 is provided on one side of the flange neck 3, the foolproof mechanism 5 is provided on the bottom of the main body 1, the protrusion 501 is provided on one side of the bolt hole 4, the fixing groove 502 is provided on the other side of the bolt hole 4, the rubber gasket groove 6 is provided on one side of the fixing groove 502, and the bolt 7 is provided inside the bolt hole 4.

[0023] Furthermore, the main body 1 is made of manganese steel. Two sets of main body 1 need to be used together. Manganese steel has high rigidity and will not deform due to heat or stress, causing the hole position to shift.

[0024] Furthermore, an upper groove 201 is welded to the left side of the main body 1, and a fixing block 202 is welded to the front of the main body 1. The inside of the fixing block 202 is connected to one end of the short shaft 203, and the other end of the short shaft 203 is connected to the movable buckle 204. The inside of the fixing block 202 is rotatably connected to the movable buckle 204 through the short shaft 203. The movable buckle 204 is provided with a retaining ring 205. The buckle 2 first tightly fits the two flanges to prevent changes in straightness when tightening the bolts 7, which would cause the hole to be off-center. The bolts 7 on the diagonal are no longer needed, saving the time of tightening the bolts 7 and improving efficiency.

[0025] Furthermore, the flange neck 3 is frustum-shaped, and the body 1 matches the size of the flange neck 3, which facilitates the positioning and connection of the flange with the pipeline.

[0026] Furthermore, the protrusion 501 and the fixing groove 502 are sized to match, and four sets of anti-misalignment mechanisms 5 are set up. Before docking, the protrusion 501 and the fixing groove 502 are fixed to fix the flange angle and prevent the flange from rotating and the bolt holes 4 from being misaligned.

[0027] Furthermore, the main body 1 and the rubber gasket groove 6 are sized to match, and the rubber gasket groove 6 and the rubber gasket are sized to match, which facilitates the installation of the sealing ring and prevents the sealing ring from shifting and blocking the hole, thus affecting the connection.

[0028] Furthermore, bolt holes 4 are evenly distributed on the main body 1, and the size of bolt holes 4 is larger than that of bolt 7 to prevent bolt 7 from not being able to be inserted due to errors during processing.

[0029] Working principle: When installing the flange in the working position, first put the pipe on the flange neck 3 and weld it firmly. Then put the rubber gasket in the rubber gasket groove 6 and then assemble the two flanges together, ensuring that the protrusion 501 is locked with the fixing groove 502. Then, secure the latch 2 and finally insert the bolt 7 into the bolt hole 4 and tighten it. This completes the process of using a flange that is easy to connect.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flange for easy connection, comprising a body (1), a latch (2), and a foolproof mechanism (5), characterized in that: The main body (1) has a buckle (2) on the front, a flange neck (3) on the top, a bolt hole (4) on one side of the flange neck (3), a foolproof mechanism (5) on the bottom, a protrusion (501) on one side of the bolt hole (4), a fixing groove (502) on the other side of the bolt hole (4), a rubber pad groove (6) on one side of the fixing groove (502), and a bolt (7) inside the bolt hole (4).

2. The flange for easy connection according to claim 1, characterized in that, The main body (1) is made of manganese steel, and two sets of the main body (1) need to be used together.

3. The flange for easy connection according to claim 1, characterized in that, The main body (1) has an upper groove (201) welded on its left side and a fixing block (202) welded on its front side. The fixing block (202) is connected to one end of a short shaft (203), and the other end of the short shaft (203) is connected to a movable buckle (204). The fixing block (202) is rotatably connected to the movable buckle (204) through the short shaft (203). The movable buckle (204) has a retaining ring (205) inside.

4. The flange for easy connection according to claim 1, characterized in that, The flange neck (3) is frustum shaped, and the body (1) is sized to match the flange neck (3).

5. A flange for easy connection according to claim 1, characterized in that, The protrusion (501) is sized to match the fixing groove (502), and the anti-foolproof mechanism (5) is provided in four sets.

6. The flange for easy connection according to claim 1, characterized in that, The main body (1) is sized to match the rubber pad groove (6), and the rubber pad groove (6) is sized to match the rubber pad.

7. The flange for easy connection according to claim 1, characterized in that, The bolt holes (4) are evenly distributed on the main body (1), and the size of the bolt holes (4) is larger than the size of the bolts (7).