Flange structure and pipeline assembly

Abstract

The invention belongs to the technical field of pipeline connection, and discloses a flange structure and a pipeline assembly. The flange structure comprises a main body part and a stop part. A first connecting hole and a second connecting hole which are through are formed in the main body part, the first connecting hole is used for connecting a pipeline needing to be fixed, and the second connecting hole is used for fixing a flange structure. The stopping part is connected to the main body part and protrudes out of the face, connected with the pipeline, of the main body part, the stopping part is an annular protrusion, and the stopping part is arranged around the second connecting hole. When the main body part and the pipeline are welded, part of welding flux flows along the outer wall of the stop part, and part of welding flux flows upwards along the outer wall of the stop part to overcome gravity, so that the flowing speed of the welding flux is reduced, the distance of the welding flux flowing into the second connecting hole is increased, the welding flux is prevented from flowing into the second connecting hole, and the cleanliness of the second connecting hole is ensured; normal assembly of the flange structure is guaranteed, and the qualified rate of products is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline connection, and in particular to a flange structure and a pipeline assembly. Background Art

[0002] Flange is a part that connects shafts to each other and is used to connect pipe ends. There are several mounting holes on the flange, and the pipes are connected in the mounting holes. Then, after welding or fastening with other fasteners, a pipe and a flange are connected. There are holes on the flange for bolts to pass through. It usually refers to a few holes opened around a disc-like metal body for connecting other things.

[0003] Brazing is a welding method that uses liquid brazing material to fill the gap between solid workpieces to connect metals after the brazing material and the workpiece are heated to the melting temperature of the brazing material at the same time. It is often used to weld flanges and pipes. However, when welding flanges and pipes by manual brazing, it is impossible to ensure that the flange remains horizontal all the time, making it impossible to control the flow direction of the brazing material. During the welding process, the brazing material often flows into the holes used to penetrate the bolts, affecting the assembly of the flange structure.

[0004] Therefore, there is an urgent need for a flange structure and a pipeline assembly to solve the above problems. Summary of the invention

[0005] An object of the present invention is to provide a flange structure that can limit the flow direction of solder and prevent the solder from flowing into the connecting hole and affecting the assembly of the flange structure.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A flange structure is provided, comprising:

[0008] A main body, wherein the main body is provided with a first connecting hole and a second connecting hole, wherein the first connecting hole is used to connect a pipeline to be fixed, and the second connecting hole is used to fix the flange structure;

[0009] A stopper is connected to the main body and protrudes from a side of the main body connected to the pipeline. The stopper is an annular protrusion and is arranged around the second connecting hole.

[0010] As an optional solution of the flange structure, a plurality of the second connecting holes and the stopper are provided, and each of the second connecting holes is correspondingly provided with the stopper.

[0011] As an optional solution for the flange structure, a step structure is provided on the inner wall surface of the stop portion.

[0012] As an optional solution of the flange structure, the flange structure further includes a protrusion, and the protrusion protrudes radially from the outer wall of the stopper.

[0013] As an optional solution of the flange structure, the protrusion is arranged around the stopper.

[0014] As an optional solution for the flange structure, a guide groove is provided on a surface of the main body connected to the pipeline.

[0015] As an optional solution of the flange structure, the flange structure further includes an extension portion, the extension portion is protruding from a side of the main body away from the pipeline, the extension portion forms a through hole, and the through hole is connected to the first connecting hole.

[0016] As an optional solution of the flange structure, the first connecting hole includes a first hole segment and a second hole segment, the hole diameter of the first hole segment is larger than the hole diameter of the second hole segment, an abutment surface is formed between the first hole segment and the second hole segment, and the pipeline abuts against the abutment surface.

[0017] Another object of the present invention is to provide a pipeline assembly that can ensure the neatness of the connecting holes of the flange structure and achieve normal assembly of the flange structure.

[0018] To achieve this object, the present invention adopts the following technical solutions:

[0019] Provided is a pipeline assembly, comprising a pipeline and the above-mentioned flange structure, wherein the pipeline is passed through the first connecting hole, and a side wall of the pipeline is welded to the main body.

[0020] As an optional solution of the pipeline assembly, the pipeline assembly further includes a connecting piece, and the connecting piece is inserted into the second connecting hole.

[0021] Beneficial effects of the present invention:

[0022] The present invention provides a flange structure, in which a stopper is arranged on one side of a main body connected to a pipeline, and the stopper is arranged around a second connection hole, and when the main body and the pipeline are welded, the solder can be guided to flow along the outer wall of the stopper, and the solder is prevented from directly flowing into the second connection hole. During the welding process, in order to facilitate welding, the position and inclination angle of the main body need to be adjusted continuously, and the solder will also flow upward along the outer wall of the stopper. At this time, the solder needs to overcome gravity to flow, thereby reducing the flow speed of the solder, and the solder needs to flow through the outer wall, top surface and inner wall of the stopper before it can flow into the second connection hole, which can increase the distance of the solder flowing into the second connection hole, further prevent the solder from flowing into the second connection hole, ensure the cleanliness of the second connection hole, and then ensure the normal assembly of the flange structure.

[0023] The present invention also provides a pipeline assembly, wherein the pipeline is passed through the first connecting hole and is welded to the main body, and the flange structure can prevent solder from entering the second connecting hole, thereby ensuring the connection quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the flange structure provided by the present invention;

[0025] Figure 2 is a cross-sectional view of the flange structure provided by the present invention;

[0026] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0027] In the figure:

[0028] 100, main body; 110, first connecting hole; 111, first hole section; 112, second hole section; 113, abutting surface; 120, second connecting hole;

[0029] 200, stopper; 210, step structure; 211, first inner wall surface; 212, step surface; 213, second inner wall surface;

[0030] 300, extension portion; 310, through hole; 311, flared portion. DETAILED DESCRIPTION

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0032] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it 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 the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0034] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0035] like Figures 1 to 3 As shown, the flange structure of this embodiment includes a main body 100 and a stopper 200. The main body 100 is set as a disc-shaped structure, and the main body 100 is provided with a first connecting hole 110 and a second connecting hole 120 that penetrate through. The first connecting hole 110 is used to connect the pipeline that needs to be fixed, and the second connecting hole 120 is used to fix the flange structure. The stopper 200 is connected to the main body 100 and protrudes from the side of the main body 100 connected to the pipeline. The stopper 200 is an annular protrusion, and the stopper 200 is arranged around the second connecting hole 120.

[0036] Based on the above design, a stopper 200 is provided on the side of the main body 100 connected to the pipeline, and the stopper 200 is provided around the second connection hole 120. When the main body 100 and the pipeline are welded, the solder can be guided to flow along the outer wall of the stopper 200 to prevent the solder from directly flowing into the second connection hole 120. During the welding process, in order to facilitate welding, the position and inclination angle of the main body 100 need to be adjusted continuously, and the solder will also flow upward along the outer wall of the stopper 200. At this time, the solder needs to overcome gravity to flow, thereby reducing the flow speed of the solder, and the solder needs to flow through the outer wall, top surface and inner wall of the stopper 200 before it can flow into the second connection hole 120, which can increase the distance of the solder flowing into the second connection hole 120, further prevent the solder from flowing into the second connection hole 120, ensure the cleanliness of the second connection hole 120, and then ensure the normal assembly of the flange structure, and improve the qualified rate of the product.

[0037] It should be noted that, in actual use, in order to ensure the connection strength and sealing of the flange structure, the main body 100 is provided with a plurality of second connection holes 120, and at this time, a plurality of stoppers 200 are also provided, and each second connection hole 120 is correspondingly provided with a stopper 200, thereby ensuring the neatness of all second connection holes 120. In this embodiment, two second connection holes 120 are provided, and the two second connection holes 120 are symmetrically arranged on the main body 100. In some other embodiments, three, four, six, etc. second connection holes 120 can also be provided, and the plurality of second connection holes 120 are evenly distributed on the edge of the main body 100, so as to achieve a stable connection between the flange structure and other objects.

[0038] Optionally, a guide groove is provided on one surface of the main body 100 connected to the pipeline. When the pipeline and the main body 100 are welded, the solder flows on the surface of the main body 100, and can preferentially enter the guide groove and flow along the guide groove, thereby limiting the flow direction of the solder and reducing the flow of the solder to the second connection hole 120. In addition, part of the solder can be left in the guide groove, reducing the volume of the solder that can flow freely, thereby reducing the accumulation of solder outside the stopper 200, and reducing the risk of the solder passing over the stopper 200 and entering the second connection hole 120. Exemplarily, the guide groove can be set as a linear groove structure, or can be set as a spiral groove structure or a plurality of concentric groove structures, etc.

[0039] Optionally, the flange structure may also be provided with a protrusion, which protrudes radially from the outer wall of the stopper 200. When the solder flows upward along the outer wall of the stopper 200, the protrusion can increase the flow distance of the solder, reduce the flow speed of the solder, and block the continued flow of the solder. The protrusion may be provided at one end of the stopper 200 close to the main body 100, or at the middle of the stopper 200 or at one end away from the main body 100.

[0040] Preferably, the protrusion is arranged around the stopper 200, and the length of the protrusion on the stopper 200 in the circumferential direction is increased, so that the protrusion can block the flow of solder at each position on the circumferential direction of the stopper 200. Optionally, the cross section of the protrusion can be set to be triangular, semicircular, rectangular or trapezoidal.

[0041] Furthermore, a step structure 210 is provided on the inner wall of the stop portion 200, so that the inner wall of the stop portion 200 forms a first inner wall surface 211, a step surface 212 and a second inner wall surface 213, and the first inner wall surface 211 is located above the second inner wall surface 213, that is, when the solder flows from the top surface of the stop portion 200 into the interior of the stop portion 200, it flows through the first inner wall surface 211, the step surface 212 and the second inner wall surface 213 in sequence, and finally flows into the second connecting hole 120.

[0042] By providing the step structure 210, when the solder flows on the inner wall of the stopper 200, it needs to change the flow direction several times. Each time the flow direction is changed, the flow speed of the solder needs to be accelerated from zero, thereby reducing the overall flow speed of the solder on the inner wall of the stopper 200, further preventing the solder from flowing smoothly into the second connection hole 120, and ensuring the cleanliness of the second connection hole 120. In this embodiment, only one step structure 210 is provided on the stopper 200. In some other embodiments, the stopper 200 may also be provided with multiple step structures 210, such as two or three, and the number of the stopper 200 may be adjusted according to the height of the stopper 200.

[0043] This embodiment also provides a pipeline assembly, including a pipeline and the above-mentioned flange structure, the pipeline is inserted into the first connection hole 110, and the side wall is welded to the main body 100. When the pipeline assembly is welded to the pipeline and the flange structure, the flange structure can prevent the solder from entering the second connection hole 120, ensuring the cleanliness of the second connection hole 120, which is conducive to ensuring the product connection quality.

[0044] Furthermore, the first connecting hole 110 includes a first hole section 111 and a second hole section 112, the aperture of the first hole section 111 is larger than the aperture of the second hole section 112, and abutment surface 113 is formed between the first hole section 111 and the second hole section 112. One end of the pipeline is arranged in the first hole section 111 and abuts against the abutment surface 113, which is beneficial to the positioning of the pipeline, so that the stability between the pipeline and the main body 100 can be ensured when the pipeline is welded.

[0045] Furthermore, the flange structure also includes an extension portion 300, which is convexly arranged on a side of the main body 100 away from the pipeline, and the extension portion 300 forms a through hole 310, which is connected to the first connection hole 110. By using the through hole 310, the first connection hole 110 can be extended, which is convenient for connecting the first connection hole 110 with an external pipeline. Specifically, the through hole 310 is also provided with a flared portion 311, which is located at one end of the through hole 310 away from the first connection hole 110, so as to facilitate other pipelines to pass through the through hole 310. In this embodiment, the flared portion 311 is a tapered hole structure, which is simple in structure and easy to manufacture.

[0046] Furthermore, the pipeline assembly further includes a connector, which is inserted into the second connection hole 120. Exemplarily, the second connection hole 120 is configured as a threaded hole, and the connector is configured as a bolt, which can be threadedly connected to the threaded hole, has a simple structure, and has low use cost.

[0047] Obviously, the above embodiments of the present invention are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A flange structure, characterized in that: include: A main body (100), the main body (100) being provided with a first connection hole (110) and a second connection hole (120), the first connection hole (110) being used to connect a pipeline to be fixed, and the second connection hole (120) being used to fix the flange structure; A stopper (200), the stopper (200) is connected to the main body (100) and protrudes from a side of the main body (100) connected to the pipeline, the stopper (200) is an annular protrusion, and the stopper (200) is arranged around the second connecting hole (120).

2. The flange structure according to claim 1, characterized in that: A plurality of the second connection holes (120) and the stopper (200) are provided, and each second connection hole (120) is correspondingly provided with a stopper (200).

3. The flange structure according to claim 1, characterized in that: A step structure (210) is provided on the inner wall of the stopper (200).

4. The flange structure according to claim 1, characterized in that: The flange structure also includes a protruding portion, which protrudes radially from the outer wall of the stopper portion (200).

5. The flange structure according to claim 4, characterized in that: The protruding portion is arranged around the stopper (200).

6. The flange structure according to claim 1, characterized in that: A flow guide groove is provided on a surface of the main body (100) connected to the pipeline.

7. The flange structure according to claim 1, characterized in that: The flange structure further comprises an extension portion (300), wherein the extension portion (300) is protruding from a side of the main body (100) away from the pipeline, and the extension portion (300) forms a through hole (310), and the through hole (310) is connected to the first connecting hole (110).

8. The flange structure according to claim 1, characterized in that: The first connecting hole (110) comprises a first hole section (111) and a second hole section (112); the hole diameter of the first hole section (111) is larger than the hole diameter of the second hole section (112); an abutting surface (113) is formed between the first hole section (111) and the second hole section (112); and the pipeline abuts against the abutting surface (113).

9. A pipeline assembly, characterized in that: It comprises a pipeline and the flange structure according to any one of claims 1 to 8, wherein the pipeline is passed through the first connecting hole (110), and the side wall of the pipeline is welded to the main body (100).

10. The pipeline assembly according to claim 9, characterized in that: The pipeline assembly also includes a connecting piece, and the connecting piece is inserted into the second connecting hole (120).

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