Welding flange

Abstract

The utility model discloses a welding flange, which relates to the technical field of welding flanges, and comprises a connecting disc, one end of the connecting disc is communicated with a sleeve, the other end of the connecting disc is fixedly connected with a mounting boss, the surface of the mounting boss is provided with a through hole, one side of the through hole is provided with a connecting pipe, and one side of the connecting disc far away from the sleeve is provided with a groove. And mounting holes are formed in the surfaces of the grooves. The groove is formed, when the connecting disc is installed, the fixing bolt fixes the connecting disc on the upper surface of the groove in a threaded mode, under the effect of the groove, the top of the bolt cannot be flush with the top of the connecting disc, and the phenomenon that the head of the bolt and a welding seam interfere with each other to affect installation and fixation of the connecting disc is avoided. And the mounting boss is arranged to lift the through hole, so that welding seam interference between the bolt and the connecting pipe is further avoided, and the welding and mounting effects are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding flanges, and specifically relates to a welding flange. Background Art

[0002] A flange, also known as a flange boss or a collar. A flange is a part used for connecting shafts to each other and is used for connecting pipe ends; it is also used as a flange at the inlet and outlet of equipment for connecting two pieces of equipment, such as a reducer flange. A flange connection or a flange joint refers to a detachable connection composed of a flange, a gasket, and bolts connected to each other as a set of combined sealing structures. A pipe flange refers to a flange used for piping in a piping device, and when used on equipment, it refers to the inlet and outlet flanges of the equipment. There are holes on the flange, and bolts tightly connect the two flanges. A gasket is used for sealing between the flanges. Currently, flange connections are commonly used for pipeline connections. Before connection, the flange needs to be fixed at one end of the pipeline. A common fixing method is to weld the flange to one end of the pipeline.

[0003] When welding the pipeline to one end of the flange, when the distance between the installation hole and the welded part is too close, the weld will interfere with the installation bolt, making it impossible to tighten the bolt, and there is room for improvement. Content of the Utility Model

[0004] In view of the deficiencies of the prior art, the utility model provides a welding flange, which solves the problem that when the distance between the installation hole and the welded part is too close, the weld will interfere with the installation bolt, making it impossible to tighten the bolt, and there is room for improvement.

[0005] To achieve the above objectives, the utility model is realized through the following technical solutions: A welding flange, comprising: a connection disk, one end of the connection disk is communicated with a sleeve, the other end of the connection disk is fixedly connected with an installation boss, through holes are opened on the surface of the installation boss, a connection pipe is arranged on one side of the through hole, a groove is opened on the side of the connection disk away from the sleeve, and installation holes are opened on the surface of the groove.

[0006] Preferably, a friction ring is arranged on the surface of the groove, the friction ring is concentric with the installation hole, and the friction ring is arranged in one-to-one correspondence with the installation hole.

[0007] Preferably, the through hole penetrates through the surface of the connection disk, and the sleeve is communicated with the connection pipe.

[0008] Preferably, the depth of the groove is greater than the thickness of the fixed bolt head, and the grooves are symmetrically arranged on the surface of the connection disk.

[0009] Preferably, rounded corners are opened on all four sides of the connection disk.

[0010] Preferably, the thickness of the installation boss is 1 cm, and rounded corners are also opened on the surface of the installation boss.

[0011] The present utility model provides a welding flange, which has at least the following beneficial effects compared with the prior art:

[0012] A groove is provided. When installing the connection plate, the fixing bolt thread-fixes the connection plate on the upper surface of the groove. Under the action of the groove, the top of the bolt will not be flush with the top of the connection plate, avoiding the interference between the bolt head and the weld seam and affecting the installation and fixation of the connection plate. An installation boss is provided to lift the through hole, further avoiding the interference between the bolt and the weld seam of the connecting pipe and improving the welding and installation effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a partially sectional structural schematic diagram of the present utility model;

[0014] Figure 2 is a structural schematic diagram of the present utility model.

[0015] In the figure: 1, connection plate; 2, groove; 3, mounting hole; 4, connecting pipe; 5, installation boss; 6, sleeve; 7, through hole; 8, friction ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model. Embodiment 1

[0017] Please refer to Figure 1-2 , the present utility model provides a technical solution: a connection plate 1, one end of the connection plate 1 is communicated with a sleeve 6, the other end of the connection plate 1 is fixedly connected with an installation boss 5, a through hole 7 is opened on the surface of the installation boss 5, a connecting pipe 4 is arranged on one side of the through hole 7, a groove 2 is opened on the side of the connection plate 1 away from the sleeve 6, and a mounting hole 3 is opened on the surface of the groove 2.

[0018] Analysis of the above content: A groove 2 is provided. When installing the connection plate 1, the fixing bolt thread-fixes the connection plate 1 on the upper surface of the groove 2. Under the action of the groove 2, the top of the bolt will not be flush with the top of the connection plate 1, avoiding the interference between the bolt head and the weld seam and affecting the installation and fixation of the connection plate 1. An installation boss 5 is provided to lift the through hole 7, further avoiding the interference between the bolt and the weld seam of the connecting pipe 4 and improving the welding and installation effects. Embodiment 2

[0019] Please refer to Figure 1-2, the present utility model provides a technical solution based on Embodiment 1: A friction ring 8 is provided on the surface of the groove 2. The friction ring 8 is concentrically arranged with the mounting hole 3, and the friction ring 8 and the mounting hole 3 are arranged in one-to-one correspondence.

[0020] Analysis of the above content: By setting the friction ring 8, the friction with the top of the bolt is increased, the fixing effect is improved, the bolt slipping is avoided, and it is convenient to use. Embodiment 3

[0021] Please refer to Figure 1-2 , the present utility model provides a technical solution based on Embodiment 1: The through hole 7 penetrates through the surface of the connection disk 1, and the sleeve 6 is communicated with the connecting pipe 4.

[0022] Analysis of the above content: By means of the through hole 7, the sleeve 6 and the connecting pipe 4 are communicated, which is convenient for fixing between the sleeve 6 and the connecting pipe 4. Embodiment 4

[0023] Please refer to Figure 1-2 , the present utility model provides a technical solution based on Embodiment 1: The depth of the groove 2 is greater than the thickness of the fixed bolt head, and the groove 2 is symmetrically arranged on the surface of the connection disk 1.

[0024] Analysis of the above content: By means of the groove 2, the height of the bolt head after installing the bolt is reduced, the interference between the bolt and the weld is avoided, and the fixing effect and the welding effect are improved. Embodiment 5

[0025] Please refer to Figure 1-2 , the present utility model provides a technical solution based on Embodiment 1: Fillets are provided on all four sides of the connection disk 1.

[0026] Analysis of the above content: The fillets are provided for easy installation, reduce the spiky parts, and improve safety. Embodiment 6

[0027] Please refer to Figure 1-2 , the present utility model provides a technical solution based on Embodiment 1: The thickness of the mounting boss 5 is 1 cm, and fillets are also provided on the surface of the mounting boss 5.

[0028] Analysis of the above content: By setting the mounting boss 5, the height of the through hole 7 is raised, which is convenient for welding the connecting pipe 4 on the surface of the mounting boss 5, raising the weld, and avoiding interference with the fixing bolt.

[0029] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0030] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding flange, characterized in that: include: A connection plate (1), one end of the connection plate (1) being connected to a sleeve (6), the other end of the connection plate (1) being fixedly connected to a mounting boss (5), a through hole (7) being provided on a surface of the mounting boss (5), a connection tube (4) being provided on one side of the through hole (7), a groove (2) being provided on a side of the connection plate (1) away from the sleeve (6), and a mounting hole (3) being provided on a surface of the groove (2).

2. A welding flange according to claim 1, characterized in that: A friction ring (8) is provided on the surface of the groove (2); the friction ring (8) is arranged concentrically with the mounting hole (3); and the friction ring (8) and the mounting hole (3) are arranged in a one-to-one correspondence.

3. A welding flange according to claim 1, characterized in that: The through hole (7) passes through the surface of the connection plate (1), and the sleeve (6) is connected to the connection pipe (4).

4. A welding flange according to claim 1, characterized in that: The depth of the groove (2) is greater than the thickness of the fixing bolt head, and the groove (2) is symmetrically arranged on the surface of the connecting plate (1).

5. A welding flange according to claim 1, characterized in that: The connection plate (1) is provided with rounded corners on all four sides.

6. A welding flange according to claim 1, characterized in that: The thickness of the mounting boss (5) is 1 cm, and the surface of the mounting boss (5) is also provided with rounded corners.

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