Quick connect pipe fitting flange

Abstract

This utility model relates to the field of flange technology, specifically a quick-connect pipe flange, including a flange plate, a welding post fixedly connected to one side of the flange plate, a locking mechanism on the outer edge of the flange plate, and a welding auxiliary mechanism installed on the outer edge of the welding post. This utility model incorporates a locking mechanism to ensure the stability of the flange-to-flange connection. The upper and lower half-rings are placed on the outer edge of the joint between the two flange plates and locked with bolts and nuts. The structure is simple and easy to operate, preventing displacement between the flange plates and ensuring good sealing at the connection point. Furthermore, the addition of the welding auxiliary mechanism allows for the extension of a limiting block to limit the pipe to be connected during welding of the flange and pipe, achieving rapid alignment for subsequent welding. While the limiting block may partially obstruct the welding position, it can be adjusted by rotating a ring to ensure welding without dead angles, avoiding welding defects caused by positional deviations and improving welding efficiency.

Description

Technical Field

[0001] This utility model relates to the field of flange technology, specifically to a quick-connect pipe flange. Background Technology

[0002] In the process of continuous development of industrial production and infrastructure construction, pipeline systems, as key channels for transporting various fluid media, require robust and precise installation and connection. The standardized design of pipe flanges makes installation more convenient and improves the stability and operability of pipeline systems. Therefore, a quick-connect pipe flange has emerged.

[0003] However, existing pipe flanges have the following problems: First, during pipeline operation, factors such as pipeline vibration can cause the flange connection to loosen, which will damage the seal at the connection and lead to fluid leakage, polluting the environment. At the same time, loosening also reduces the stability of the pipeline system, affecting the normal operation of the entire system, increasing maintenance costs and downtime. Second, it is difficult to quickly and accurately align the flanges when welding them to the pipeline, resulting in problems such as flange concentricity deviation and non-parallel end faces. This will lead to uneven stress distribution at the weld, forming welding defects such as misalignment, reducing welding strength and sealing performance, increasing rework rate, extending the construction period, increasing labor costs, and the unstable welding quality will affect the pressure-bearing capacity and service life of the pipeline system.

[0004] To address these issues, we offer a quick-connect pipe flange. Utility Model Content

[0005] The purpose of this invention is to provide a quick-connect pipe flange to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a quick-connect pipe flange, including a flange, a welding post fixedly connected to one side of the flange, a locking mechanism provided on the outer edge of the flange, and a welding auxiliary mechanism installed on the outer edge of the welding post.

[0007] Preferably, the locking mechanism includes an upper half ring that fits against the outer edge of the flange. A hinge block is fixedly connected to one end of the upper half ring. The hinge block of the upper half ring and a hinge block fixedly connected to one side of the lower half ring form a hinge structure through a hinge shaft, so that the upper half ring and the lower half ring can rotate around the hinge shaft to perform opening and closing operations.

[0008] Preferably, the upper half ring and the lower half ring are respectively fixedly connected to one side of their outer edges. When the two locking brackets are in contact, they can be fixed by bolts passing through the openings provided on them and then by nuts. At this time, the upper half ring and the lower half ring are in a closed and locked state.

[0009] Preferably, the welding auxiliary mechanism includes a retaining ring fixedly connected to the outer edge of the welding column. The outer side of the retaining ring forms a retaining structure with the rotating ring through a groove on the inner edge of the rotating ring, so as to realize the rotation of the rotating ring on the welding column and avoid affecting the welding operation.

[0010] Preferably, four threaded blocks are fixedly connected to the outer edge of the rotating ring, and bolts are threadedly connected inside the threaded blocks. A connecting rod is installed at one end of each bolt, and a limit block is fixedly connected to one side of the outer edge of the connecting rod. When welding the flange and the pipe, the limit block is pushed out by the bolts to assist in quickly calibrating the docking position.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model incorporates an upper and lower half-ring to form a locking mechanism, ensuring the stability of the flange connection. The upper and lower half-rings are placed on the outer edge of the mating point of the two flanges and rotated around the hinge to close, further enhancing the connection stability of the two flanges. They are locked by bolts and nuts. The structure is simple and easy to operate, and it can resist the influence of external forces such as fluid pressure fluctuations and vibrations during pipeline operation, preventing displacement or loosening between flanges, ensuring good sealing of the connection, eliminating the risk of media leakage, and ensuring safe transportation. At the same time, the stable connection enhances the overall structural strength and stability of the pipeline system, enabling the pipeline system to operate continuously and efficiently.

[0013] 2. This utility model incorporates a welding auxiliary mechanism consisting of a rotating ring and a limiting block. When welding flanges and pipes, the limiting block can be pushed out to limit the pipes to be connected, achieving rapid alignment for subsequent welding work. At this time, the limiting block will partially obstruct the welding position, which can be adjusted by rotating the rotating ring to ensure welding without dead angles. It can accurately align the welding column and the pipe to be welded for convenient welding, ensuring concentricity and parallelism of the end face, effectively avoiding welding defects caused by positional deviations, reducing welding difficulty, improving welding efficiency, reducing rework and repair, shortening the construction cycle, and extending the service life of the pipeline system. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a rear view of the overall structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the present invention after docking.

[0017] Figure 4 This is a schematic diagram of the overall structure of the locking mechanism of this utility model.

[0018] Figure 5 This is an overall disassembly diagram of the locking mechanism of this utility model.

[0019] Figure 6 This is a schematic diagram of the overall structure of the welding auxiliary mechanism of this utility model.

[0020] Figure 7 This is an anatomical diagram of the overall structure of the welding auxiliary mechanism of this utility model.

[0021] Figure 8 This is a schematic diagram of the welding auxiliary mechanism of this utility model.

[0022] In the diagram: 1. Flange; 2. Welding post; 3. Locking mechanism; 31. Upper half ring; 32. Hinge block; 33. Lower half ring; 34. Hinge block two; 35. Hinge shaft; 36. Locking bracket; 37. Bolt; 38. Nut; 4. Welding auxiliary mechanism; 41. Snap ring; 42. Rotating ring; 43. Groove; 44. Threaded block; 45. Bolt two; 46. Connecting rod; 47. Limiting block. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] 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.

[0027] Please see Figure 1-8 One embodiment of this utility model is a quick-connect pipe flange, including a flange 1, a welding post 2 fixedly connected to one side of the flange 1, a locking mechanism 3 provided on the outer edge of the flange 1, and a welding auxiliary mechanism 4 installed on the outer edge of the welding post 2.

[0028] Furthermore, the locking mechanism 3 includes an upper half ring 31 that fits against the outer edge of the flange 1. One end of the upper half ring 31 is fixedly connected to a hinge block 32. The hinge block 32 of the upper half ring 31 and the hinge block 34 fixedly connected to one side of the lower half ring 33 form a hinge structure through a hinge shaft 35, so that the upper half ring 31 and the lower half ring 33 can rotate around the hinge shaft 35 to perform opening and closing operations. After the two flanges are connected, the upper half ring 31 and the lower half ring 33 are placed on the outer edge of the connection point of the two flanges 1 and rotated around the hinge shaft 35 to close, further enhancing the connection stability of the two flanges.

[0029] Furthermore, the upper half ring 31 and the lower half ring 33 are respectively fixedly connected to one side of their outer edges. When the two locking brackets 36 are in contact, they can be fixed by bolts 37 through the openings provided on them and nuts 38. At this time, the upper half ring 31 and the lower half ring 33 are in a closed and locked state. The upper half ring 31 and the lower half ring 33 are locked by bolts 37 and nuts 38. The structure is simple and the operation is convenient.

[0030] Furthermore, the welding auxiliary mechanism 4 includes a retaining ring 41 fixedly connected to the outer edge of the welding column 2. The outer side of the retaining ring 41 forms a retaining structure with the rotating ring 42 through a groove 43 opened on the inner edge of the rotating ring 42, so that the rotating ring 42 can rotate on the welding column 2 to avoid affecting the welding operation. When welding flanges and pipes, welding work can be carried out after the position is calibrated by the limiting block 47. At this time, the limiting block will partially block the welding position of 47, which can be adjusted by rotating the rotating ring 42 to ensure welding without dead angles.

[0031] Furthermore, four threaded blocks 44 are fixedly connected to the outer edge of the rotating ring 42. Bolts 45 are threadedly connected inside the threaded blocks 44. A connecting rod 46 is installed at one end of the bolts 45. A limiting block 47 is fixedly connected to one side of the outer edge of the connecting rod 46. When welding the flange and the pipe, the limiting block 47 is pushed out by the bolts 45 to limit and assist in quickly calibrating the docking position. Pushing out the limiting block 47 and letting it go beyond the edge of the welding column 2 can limit the pipe that needs to be connected, realize quick alignment, and carry out subsequent welding work to improve work efficiency.

[0032] Working principle: After the two flanges are joined, the upper half ring 31 and the lower half ring 33 are placed on the outer edge of the joint of the two flanges 1 and rotated around the hinge shaft 35 to close, which further enhances the connection stability of the two flanges. The upper half ring 31 and the lower half ring 33 are locked by bolts 37 and nuts 38. The structure is simple and easy to operate. When welding the flange and the pipe, the limiting block 47 is pushed out and goes beyond the edge of the welding column 2 to limit the pipe to be connected, so as to quickly align it to carry out subsequent welding work and improve work efficiency. At this time, the limiting block will partially block the welding position of 47. It can be adjusted by rotating the rotating ring 42 to ensure welding without dead angles.

[0033] The above description is merely an embodiment of this utility model, and common knowledge regarding specific structures and characteristics is not described in detail here. It will be apparent to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model 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 utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A quick-connect pipe flange, comprising a flange (1), characterized in that: A welding column (2) is fixedly connected to one side of the flange (1), a locking mechanism (3) is provided on the outer edge of the flange (1), and a welding auxiliary mechanism (4) is installed on the outer edge of the welding column (2).

2. The quick-connect pipe flange according to claim 1, characterized in that: The locking mechanism (3) includes an upper half ring (31) that fits against the outer edge of the flange (1). A hinge block (32) is fixedly connected to one end of the upper half ring (31). The hinge block (32) of the upper half ring (31) and the hinge block (34) fixedly connected to one side of the lower half ring (33) form a hinge structure through a hinge shaft (35), so that the upper half ring (31) and the lower half ring (33) can rotate around the hinge shaft (35) to perform opening and closing operations.

3. The quick-connect pipe flange according to claim 2, characterized in that: The upper half ring (31) and the lower half ring (33) are respectively fixedly connected to one side of the outer edge of the two locking brackets (36). When the two locking brackets (36) are in contact, they can be fixed by bolts (37) through the openings provided on them and nuts (38). At this time, the upper half ring (31) and the lower half ring (33) are in a closed and locked state.

4. The quick-connect pipe flange according to claim 1, characterized in that: The welding auxiliary mechanism (4) includes a retaining ring (41) fixedly connected to the outer edge of the welding column (2). The outer side of the retaining ring (41) forms a retaining structure with the rotating ring (42) through the groove (43) opened on the inner edge of the rotating ring (42), so that the rotating ring (42) can rotate on the welding column (2) to avoid affecting the welding operation.

5. A quick-connect pipe flange according to claim 4, characterized in that: The outer edge of the rotating ring (42) is fixedly connected with four threaded blocks (44), and the threaded blocks (44) are internally threaded with bolts (45). One end of the bolts (45) is equipped with a connecting rod (46), and a limit block (47) is fixedly connected to one side of the outer edge of the connecting rod (46). When the flange and the pipe are welded, the limit block (47) is pushed out by the bolts (45) to limit and assist in quickly calibrating the docking position.

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