TWM629471U - Flange and flange connector - Google Patents

Abstract

The present creation provides a flange and a flange connector, the flange connector including a first metal plate and a second metal plate. A center of the first metal plate has a first opening, and a periphery of the first opening has a plurality of first through holes. A center of the second metal plate has a second opening, and a periphery of the second opening has a plurality of second through holes. The first metal plate and the second metal plate are fixed with each other by screws passing through the plurality of through holes. The first metal plate has a first surface. A plurality of recession structures are provided on the first surface in correspondence to the plurality of first through holes, and each of the plurality of recession structures are configured to engage the screw head, so as to fix them.

Description

Flanges and flange connections

This creation is about a flange and a flange connection, especially a flange and a flange connection that can effectively resist acid (alkali) corrosion and are beneficial to single-person operation.

Flange fittings are useful for docking pipes or shaft-like parts. A typical flange is represented by a bilaterally symmetrical disc-like structure.

Flange connectors are usually detachable parts composed of a pair of flanges, gaskets, bolts, nuts, washers and other parts.

(About the problem of conventional flange connectors)

In the conventional flange connection, the main material of the flange is white iron or cast iron. However, since the flange connection is suitable for the connection of pipes (pipes), it is used in factories or industrial production environments that require the use of acid (alkali) gas. As a result, flanges are prone to corrosion, which can lead to loose connections. In severe cases, it may also lead to leakage of the liquid carried inside the pipeline.

A known protection solution is to apply a protective layer such as a Teflon layer to the outside of the flange connection. However, when the flange is locked, the necessary work (eg, friction due to rotation) can cause the applied protective layer to be scraped off, reducing the protective effectiveness. Moreover, the white iron material is not suitable for iron fluoride. The adhesion effect of the dragon layer is not good. Therefore, surface roughening treatment (eg, sandblasting) is required before coating, so the process is very complicated.

FIG. 1 shows a flange 10 of a conventional flange connection.

FIG. 2 shows a conventional flange connector 1 , and FIG. 2 is used to illustrate the assembling method of the flange connector 1 .

FIG. 3 shows a common application of the flange connection 1 .

Referring to FIG. 1 and FIG. 2 , the flange 10 has a plurality of through holes 101 around its body. During the assembly process, the screws 11 are passed through the through holes 101 of the two flanges 10 , and the screws 11 are locked with nuts 12 at the other ends to fix them, thereby completing the assembly of the flange connector 1 .

However, in one case, as shown in FIG. 3 , the flange connection 1 is applied to both ends of the wall. In this case, the two flanges 10 are separated by the wall. At this time, to complete the assembly of the flange connector 1, two partners are required to complete (that is, one person fixes the screw head on one side of the wall). , another person bolts the nut on the other side of the wall), which is very inconvenient.

Therefore, it is necessary to propose an improved flange and flange connection to eliminate or alleviate the above-mentioned problems.

In view of this, the present invention aims to provide a flange connection which can be used in an environment that may cause the conventional flange connection to corrode.

In addition, in order to solve the inconvenience of the partition wall operation, this creation also provides a flange connector, the through hole part of which is changed from the original standard hole to a hexagonal hole position with a concave part, so that the screw head directly sinks into the flange. Instead, it is beneficial to perform single-player operations.

Specifically, according to an aspect of the present invention, a flange is proposed, which includes a metal plate with an opening in the center and a plurality of through holes around the opening, wherein, on a surface of the metal plate, corresponding to A plurality of concave structures are provided at the through holes.

Optionally, or preferably, in the flange of the present creation, the material of the metal plate is selected from titanium, titanium-nickel alloy or other titanium alloys.

Optionally, or preferably, in the flange of the present creation, the recessed structures are shaped as polygonal structures and have a depth greater than or equal to 1 millimeter (mm) relative to the surface.

According to another aspect of the present invention, a flange connector is provided, which includes a first metal plate and a second metal plate. The center of the first metal plate has a first opening, and the periphery of the first opening has a plurality of first through holes. The center of the second metal plate has a second opening, and the periphery of the second opening has a plurality of second through holes. The first metal plate and the second metal plate are fixed to each other through the first through holes and the second through holes through screws. The first metal plate has a first surface, and a plurality of concave structures are disposed on the first surface corresponding to the first through holes, and each of the concave structures is configured to engage a screw head so as to be fixed.

Optionally, or preferably, in the flange connection of the present invention, the materials of the first metal plate and the second metal plate are selected from titanium, titanium-nickel alloys or other titanium alloys.

Optionally, or preferably, in the flange connection of the present invention, the first opening and the second opening are shaped into circular shapes to allow a pipe to pass therethrough.

Optionally, or preferably, in the flange connection of the present invention, the first metal plate and the second metal plate are shaped into a ring shape.

Optionally, or preferably, in the flange connection of the present creation, the recessed structures have a depth greater than or equal to 1 millimeter (mm) relative to the first surface.

Optionally, or preferably, in the flange connection of the present invention, the recessed structures are shaped into polygonal structures.

Optionally, or preferably, in the flange connection of the present invention, the bottom surfaces of the recessed structures are coated with an adhesive layer or an anti-slip material.

Optionally, or preferably, the flange connector of the present invention further includes a gasket and an O-ring, which are inserted between the first metal plate and the second metal plate , in order to increase the overall tightness of the flange connection.

The drawings and detailed descriptions will be described below to make other objectives, advantages, and novel features of the present creation more apparent.

[prior art]

1: Flange connector

10: Flange

11: Screws

12: Nut

101: Through hole

[this creation]

2: Flange connection

20: sheet metal

20A: First metal plate

20B: Second metal plate

21: Screws

210: Screw head

22: Nut

201: Opening

201A: First Opening

201B: Second Opening

202: Through hole

202A: first through hole

202B: Second through hole

203, 203A: Recessed structure

Fa: surface or first surface

Figure 1 shows a flange of a conventional flanged joint.

Figure 2 shows a conventional flange connection.

Figure 3 shows a common application of flanged connections.

FIG. 4A shows a flange of an embodiment of the present invention.

FIG. 4B shows the recessed structure of the flange according to an embodiment of the present invention.

FIG. 5A shows a flange connection according to an embodiment of the present invention.

Figure 5B shows a cross-sectional view of the flange connection of Figure 5A.

Various embodiments of the present creation are provided below. These embodiments are used to illustrate the technical content of the present creation, rather than to limit the scope of rights of the present creation. A feature of one embodiment can be applied to other embodiments by suitable modification, substitution, combination, isolation.

It should be noted that, in this document, unless otherwise specified, having "a" element is not limited to having a single such element, but may include one or more such elements.

In addition, in this document, unless otherwise specified, ordinal numbers such as "first" and "second" are only used to distinguish multiple elements with the same name, and do not mean that there is a rank, hierarchy, or execution order among them , or process sequence. A "first" element and a "second" element may appear together in the same component or separately in different components. The presence of an element with a higher ordinal number does not necessarily imply the presence of another element with a lower ordinal number.

In this article, unless otherwise specified, the so-called feature A "or" (or) or "and/or" (and/or) feature B, refers to the existence of nail alone, the existence of B alone, or the coexistence of A and B ; The so-called feature A "and" (and) or "and" (and) or "and" (and) feature B, is that nail and B exist at the same time; the so-called "include", "include", "have", " "Contain" means including but not limited to.

In addition, in this document, the so-called "upper", "lower", "left", "right", "front", "rear", or "between" and other terms are only used to describe the relationship between multiple elements. Relative position, and can be generalized to include translation, rotation, or mirroring.

Furthermore, herein, unless specifically stated otherwise, "an element is on another element" or the like does not necessarily mean that the element is in contact with the other element.

Furthermore, herein, "preferred" or "better" is used to describe optional or additional elements or features, ie, those elements or features are not required and may be omitted.

In addition, unless otherwise specified herein, the so-called "adapted" or "suitable" for another element means that the other element is not part of the subject matter of the application, but is exemplified or referred to In this context, unless otherwise specified, an element is said to be "suitable" or "suitable for" a configuration or an action, the description of which is characteristic of the element, and does not imply that the configuration has been set or that the action has been performed.

Furthermore, herein, unless otherwise specified, a numerical value may encompass a range of ±10% of the numerical value, particularly a range of ±5% of the numerical value. Unless otherwise specified, a numerical range is composed of subranges defined by the lower endpoint, lower quartile, median, higher quartile, and higher endpoint .

(Flange and flange connection)

FIG. 4A shows a flange of an embodiment of the present invention.

FIG. 4B shows the recessed structure 203 of the flange according to an embodiment of the present invention.

FIG. 5A shows the flange connector 2 of an embodiment of the present invention.

FIG. 5B shows a cross-sectional view of the flange connection 2 of FIG. 5A .

First, please refer to FIG. 4A and FIG. 4B , the flange of the present invention includes a metal plate 20 . In this embodiment, the metal plate 20 is shaped into a circular ring; in other embodiments, it can be shaped into an elliptical ring or a polygonal ring. The center of the metal plate 20 has an opening 201 . There are a plurality of through holes 202 around the opening 201, and they can be distributed at equal intervals, but not limited thereto. On a surface Fa of the metal plate 20 , corresponding to the through holes 202 , a corresponding plurality of recessed structures 203 are provided. The size of the recessed structures 203 is larger than that of the through holes 202 , and the recessed structures 203 and the corresponding through holes 202 are concentric.

Alternatively or preferably, the recessed structures 203 have a depth greater than or equal to 1 millimeter (mm) relative to the surface Fa, but the depth of the recessed structures 203 may not penetrate the thickness of the metal plate 20 . The principle and use of the recessed structure 203 will be further described below.

Please refer to FIG. 5A and FIG. 5B , according to the present invention, a flange connector 2 associated with the above-mentioned flange is provided. Specifically, the flange connector 2 of the present invention includes a first metal plate 20A and a second metal plate 20B. In this embodiment, the first metal plate 20A and the second metal plate 20B are shaped into circular rings; in other embodiments, they can be shaped into elliptical rings or polygonal rings. The center of the first metal plate 20A has a first opening 201A, and the periphery of the first opening 201A has a plurality of first through holes 202A, which can be equally spaced, but not limited to this; the center of the second metal plate 20B has a first The two openings 201B have a plurality of second through holes 202B around the second opening 201B, which may be distributed at equal intervals, but not limited thereto.

Generally speaking, when two pipes need to be connected, two different pipes are respectively inserted into the first opening 201A of the first metal plate 20A and the second opening 201B of the second metal plate 20B. Then, the through holes 202A and 202B of the first metal plate 20A and the second metal plate 20B are simultaneously passed through the screws 21 , and the nut 22 is used to fasten them to each other to complete the pipeline connection.

In particular, according to the present invention, on a first surface Fa of the first metal plate 20A, a plurality of recessed structures 203A are disposed corresponding to the first through holes 202A, and the size of the recessed structures 203A is larger than that of the first through holes 202A. size, and the concave structures 203A and the corresponding first through holes 202A are concentric, and these concave structures 203A are configured to engage the screw heads 210 to fix the screw heads 210 .

Suitably, the recessed structure 203A is shaped into a hexagonal structure and has a depth greater than or equal to 1 millimeter (mm) relative to the first surface Fa to ensure that the screw head 210 can be stabilized in accordance with the commonly used hexagonal screw forms and their specifications. It is engaged in the recessed structure 203A. However, the depth of the recessed structure 203A cannot penetrate the thickness of the first metal plate 20A. Of course, the recessed structure can be shaped into other polygonal structures, preferably Regular polygonal structures, such as octagonal structures, are also possible, depending on the type of screw to be used and its size.

In addition, the flange connection member 2 can also have a gasket and an O-ring (not shown). Gaskets and O-rings can be inserted between the first metal plate 20A and the second metal plate 20B to increase the overall tightness of the flange connection member 2 .

Looking back at the prior art, in FIG. 3 , when the two flanges 10 are separated by the wall, to complete the assembly of the flange connector 1 , two partners are required to complete it, which is very inconvenient.

The advantage of the present invention is that when the flange connector 2 is locked and fixed, the screw head 210 is engaged in the recessed structure 203A, and the personnel only need to be responsible for locking the screw cap 22 . In other words, under the circumstance of being blocked by a wall, the flange connector 2 of the present invention does not need to be fixed by personnel on the wall on the side of the screw head 210, and the flange connector 2 can be locked by a single person, which is very convenient .

Furthermore, the bottom surface of the recessed structure 203A may be coated with an adhesive layer or an anti-slip material. Accordingly, when the screw head 210 is engaged with the recessed structure 203A, the situation that the screw head 210 and the recessed structure 203A are separated due to slight or small shaking can be avoided.

(Material of flange and flange connector)

In some embodiments, the first metal plate 20A and the second metal plate 20B can be made of materials selected from titanium or titanium alloys, preferably titanium-nickel alloys, but the present invention is not limited thereto.

Titanium is a silver-white transition metal. Observing the chemical properties of titanium, it has a strong affinity for oxygen. Therefore, in the atmosphere or in an oxygen-containing medium, a dense oxide film with strong adhesion and great inertness will be formed on the surface of titanium, which protects the titanium The substrate is not corroded.

For this reason, the flange connector 2 of the present invention can choose titanium or titanium alloy, preferably titanium-nickel alloy, as the main material of the metal plate. Therefore, in the prior art, the disadvantage that the flange is easily corroded in an acid and alkali environment, which in turn leads to loosening of the connection, is overcome.

Although the present invention has been described in terms of various embodiments, it should be understood that many other possible modifications and changes can be made without departing from the spirit of the present invention and what is claimed in the scope of the patent application.

2: Flange connection

20A: First metal plate

20B: Second metal plate

21: Screws

210: Screw head

22: Nut

201A: First Opening

201B: Second Opening

202A: first through hole

202B: Second through hole

203A: Recessed Structure

Fa: first surface

Claims (10)

A flange, comprising a metal plate (20) with an opening (201) in the center, and a plurality of through holes (202) around the opening (201), wherein, on a surface (Fa) of the metal plate (20) ), corresponding to the through holes (202), a plurality of concave structures (203) are provided. The flange according to claim 1, wherein the material of the metal plate (20) is selected from titanium, titanium-nickel alloys or other titanium alloys. The flange of claim 1, wherein the recessed structures (203) are shaped as polygonal structures and have a depth greater than or equal to 1 millimeter (mm) relative to the surface (Fa). A flange connector (2), comprising: a first metal plate (20A) with a first opening (201A) in the center, and a plurality of first through holes (202A) around the first opening (201A); and a second metal plate (20B) with a second opening (201B) in the center, and a plurality of second through holes (202B) around the second opening (201B); wherein the first metal plate (20A) and the second metal plate (20B) through the first through holes (202A) and the second through holes (202B) through screws (21) to be fixed to each other; and wherein the first metal plate (20A) ) has a first surface (Fa), a plurality of recessed structures (203A) are arranged on the first surface (Fa) corresponding to the first through holes (202A), and each of the recessed structures (203A) is configured into a snap screw head (210) to fix it. The flange connector (2) according to claim 4, wherein the materials of the first metal plate (20A) and the second metal plate (20B) are selected from titanium, titanium-nickel alloys or other titanium alloys. The flange connection (2) according to claim 4, wherein the first opening (201A) and the second opening (201B) are shaped into a circle to allow a pipe to pass therethrough. The flange connector (2) according to claim 6, wherein the first metal plate (20A) and the second metal plate (20B) are molded into a ring shape. The flange connection (2) of claim 4, wherein the recessed structures (203A) have a depth greater than or equal to 1 millimeter (mm) with respect to the first surface (Fa). The flange connector (2) according to claim 4, wherein the recessed structures (203A) are shaped into polygonal structures. The flange connector (2) according to claim 9, wherein the bottom surfaces of the recessed structures (203A) are coated with an adhesive layer or an anti-slip material.

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