TW202202771A - Coupling device - Google Patents

Abstract

A coupling device for coupling flanges of two pipes includes a chain assembly and a positioning mechanism. The chain assembly includes plural connecting pieces and plural pivot members. The connecting pieces are pivotally connected one by one by the pivot members to be chain-like. The connecting pieces at two opposite ends of the chain assembly are defined as a first connecting piece and a second connecting piece. A first pivot member is arranged at the free end of the first connecting piece, and a second pivot member is arranged at the free end of the second connecting piece. The positioning mechanism includes a first portion and a second portion pivotally connected. The first portion is pivotally connected to the first pivot member, and the second portion is detachably positioned to the second pivot member. The first portion is pivotable between a release position and a fixed position with respect to the second portion.

Description

Buckle device

The present invention relates to a buckling device, especially a buckling device for fixing flanges of pipe fittings.

Generally speaking, to connect two pipe fittings, it is usually necessary to use irreversible fixing means such as welding, adhesion, etc. However, if the two pipe fittings have the possibility or need to be separated again, other temporary connection fixing means will be used, such as Screw the flanges of the two pipe fittings to each other, or use a flange clamp to clamp and position the two flanges. Once the two pipe fittings are separated, they can be detached immediately.

Among them, a typical flange clamp, as disclosed in US Pat. No. 5,522,625, usually includes two semicircular rings and a fixing mechanism connected between the two rings. The two flanges are clamped in it, and the two ring bodies are tightened by a fixing mechanism to achieve the effect of fixing.

However, the shape and size of the clamping surface of such a structure depends on the inner surface of the two rings, that is, only a certain size of flange can be precisely clamped by the two rings, as long as the flange size is larger or smaller , the ring body may only be fixed by point contact, which is not effective, or may not be fixed at all.

Therefore, how to improve the effect of the flange clamp contacting the flange, and how to apply it to flanges of different sizes, has become an important issue in the industry.

The main purpose of the present invention is to provide a buckle device, which can contact and clamp the flange more reliably, and is suitable for flanges of different sizes.

In order to achieve the above object, the present invention provides a buckling device for buckling and fixing the flanges of two pipe parts to each other. The buckling device includes a chain component and a positioning mechanism.

The chain assembly includes a plurality of connecting pieces and a plurality of pivot pieces, the connecting pieces are pivoted by the pivot pieces in sequence to form a chain shape, and the connecting piece at one end of the chain element is defined as a first connection The free end of the first connecting piece has a first pivot piece, the connecting piece at the other end of the chain assembly is defined as a second connecting piece, and the free end of the second connecting piece has a second pivot piece.

The positioning mechanism includes a first part and a second part, the first part and the second part are pivotally connected to each other, the length direction of the first connecting piece defines a first direction, the first part and the first pivot piece or the A line connecting where one of the first connecting pieces is pivoted to where the first part and the second part are pivotally connected defines a second direction, the second part is detachably positioned to the second pivot piece, the first A part can pivot relative to the second part between a release position and a positioning position, when the first part is in the positioning position, the second part is positioned to the second pivot and the chain assembly is tightened to the first A direction is parallel to the second direction or forms an included angle of less than 180 degrees with the side away from the center of curvature of the chain element. When the first part is in the release position, the first direction and the second direction are farther away from the chain One side of the center of curvature of the component forms an included angle greater than 180 degrees.

Therefore, the fastening device provided by the present invention can be applied to pipe flanges of different sizes, and can fit the shape of the flange to achieve the best positioning effect.

The following examples are only used to illustrate possible implementations of the present invention, but are not intended to limit the scope of protection of the present invention, and are described together first.

Please refer to FIG. 1 to FIG. 5 , the present invention provides a buckling device for buckling and fixing the flanges of two pipe parts to each other. The buckling device includes a chain assembly 10 , 10 ′ and a positioning mechanism 20 .

The chain assemblies 10, 10' include a plurality of connecting pieces 11, 11' and a plurality of pivot pieces 12. The connecting pieces 11, 11' are pivotally connected to the pivot pieces 12 in sequence to form a chain shape, located in the chain. The connecting piece 11 at one end of the components 10, 10' is defined as a first connecting piece 111, the free end of the first connecting piece 111 has a first pivot piece 1201, and the other end of the chain components 10, 10' has a first pivot piece 1201. The connecting piece 11 is defined as a second connecting piece 112 , and the free end of the second connecting piece 112 has a second pivot piece 1202 .

The positioning mechanism 20 includes a first part 21 and a second part 22, the first part 21 and the second part 22 are pivotally connected to each other, and the first part 21 is one of the first pivot piece 1201 or the first connecting piece 111 The length direction of the first connecting piece 111 defines a first direction, and the first part 21 and the first pivot piece 1201 or the first connecting piece 111 are pivotally connected to the first part 21 and the first connecting piece 111. The connecting line where the second part 22 is pivoted defines a second direction, the second part 22 is detachably positioned to the second pivot 1202 , and the first part 21 can be in a release position relative to the second part 22 Pivot to a positioning position, when the first part 21 is located at the positioning position, the first direction and the second direction are parallel to or less than 180 degrees from the side away from the center of curvature of the chain assembly 10, 10' When the first part is in the release position, the first direction and the second direction form an included angle greater than 180 degrees on the side away from the center of curvature of the chain components 10 and 10'.

Regarding the chain assembly 10 , specifically, the connecting pieces 11 include a plurality of the connecting pieces 11 , and the connecting pieces 11 are arranged side by side at a certain distance from each other and are respectively connected with the adjacent connecting pieces 11 . The pivot piece 12 is disposed between a pair of the connecting pieces 11. Each pivot piece 12 is in the shape of a bobbin and has a shaft portion 121 and two end pieces 122 located at both ends of the shaft portion 121. The outer diameter of each end piece 122 is larger than The outer diameter of the shaft portion 121 and the space between the two end pieces 122 are for the flanges of the two pipe fittings to be embedded and abutted.

Regarding the positioning mechanism 20 , in this embodiment, the first portion 21 of the positioning mechanism 20 includes a main body 211 and a pressing rod 212 . The main body 211 is connected to the pressing rod 212 and opposite ends thereof are respectively connected to the first connecting piece 111 and the second part 22 are pivotally connected, the second part 22 of the positioning mechanism 20 includes a pivot block 221 and a hook 222, the pivot block 221 is pivotally connected to the body 211 of the first part 21, the hook 222 is located at one end of the pivot block 221 opposite to the main body 211, and the hook piece 22 is detachably hooked to the second pivot piece 1202. More specifically, the main body 211 is generally in a ㄇ shape and includes A bottom surface and two side surfaces, the two side surfaces respectively form a first pivot hole 2111 and a second pivot hole 2112 , the first connecting piece 111 is pivoted to the first pivot through a pivot 213 A hole 2111 (preferably, the position of the pivot shaft 213 is located between the pivot members at opposite ends of the first connecting piece 111 ), the pivot block 221 of the second part 22 is pivoted to the second pivot hole 2112 , the second part 22 of the positioning mechanism 20 further includes a screw 223 , the screw 223 passes through the pivot block 221 and the hook 222 to adjust the pivot block 221 and the hook 222 to each other For connection (the distance between the pivot block 221 and the hook 222 can be adjusted by screwing the screw 223 to adjust the tightness of the chain assembly 10 ), the screw 223 passes through the pivot block 221 and protrudes between the two side surfaces of the main body 211 .

In actual use, the chain assembly 10 is sleeved on the adjacent flanges 31 and 41 of a first pipe member 30 and a second pipe member 40, the hook member 222 is hooked on the second pivot member 1202, and then Pressing the pressing rod 212 toward the chain assembly 10 can make the hook member 222 hook the second pivot member 1202 and tighten the chain assembly 10. If the outer diameter of the flange is different, If there is a pipe, the screw can be screwed to adjust the distance between the hook and the pivot block, so that the tightness can be adjusted, which is very convenient.

As for FIG. 5 , another embodiment of the present invention is provided. The connecting piece is a ring-shaped pivot piece sleeved at both ends of the connecting piece, and the pivot pieces are sequentially connected to a chain by the annular connecting piece. shape.

With the above structure, the buckle device provided by the present invention can fit the outer edge of the flange of the pipe more reliably, so as to closely connect the flanges, and the chain-like structure has a better fixing effect than the ring-like structure. , the buckle device of the present invention can also be applied to pipe flanges of different sizes, the operation and adjustment are simple, and the use effect is excellent.

10, 10': Chain assembly 11, 11': connecting piece 111: The first connecting piece 112: Second connecting piece 12: Pivot piece 1201: The first pivot 1202: Second pivot 121: Shaft 122: end piece 20: Positioning mechanism 21: Part One 211: Ontology 2111: The first pivot hole 2112: Second pivot hole 212: Pressure rod 213: Pivot 22: Part II 221: Pivot block 222: hook 223: Screws 30: The first pipe fitting 31: Flange 40: Second pipe fitting 41: Flange

FIG. 1 is a perspective view of the present invention. FIG. 2 is an exploded perspective view of the present invention. FIG. 3 and FIG. 4 are schematic diagrams of the operation of the present invention. FIG. 5 is a perspective view of a second embodiment of the present invention.

10: Chain Components

11: connecting piece

12: Pivot piece

20: Positioning mechanism

21: Part One

22: Part II

30: The first pipe fitting

31: Flange

40: Second pipe fitting

41: Flange

Claims (10)

A buckling device for buckling and fixing the flanges of two pipe fittings to each other, the buckling device comprising: A chain assembly includes a plurality of connecting pieces and a plurality of pivot pieces, the connecting pieces are pivoted by the pivot pieces in sequence to form a chain shape, and the connecting piece at one end of the chain element is defined as a first A connecting piece, the free end of the first connecting piece has a first pivot piece, the connecting piece at the other end of the chain assembly is defined as a second connecting piece, and the free end of the second connecting piece has a second pivot piece ; A positioning mechanism includes a first part and a second part, the first part and the second part are pivotally connected to each other, the first part is pivotally connected to one of the first pivot piece or the first connecting piece, the first The length direction of the connecting piece defines a first direction, and the connection line from the place where the first part is pivoted with the first pivot piece or the first connecting piece to the place where the first part and the second part are pivoted defines In a second direction, the second part is detachably positioned to the second pivot, the first part can pivot relative to the second part between a release position and a positioning position, when the first part is in the positioning position When the first direction and the second direction are parallel to or form an included angle of less than 180 degrees on the side away from the center of curvature of the chain element, when the first part is in the release position, the first direction and the second direction An included angle greater than 180 degrees is formed on the side away from the center of curvature of the chain assembly. The buckle device according to claim 1, wherein the connecting pieces comprise a plurality of the connecting pieces, and the connecting pieces are arranged side by side at a certain distance from each other and are respectively connected with the adjacent connecting pieces, and each of the pivots is provided with a plurality of the connecting pieces. between a pair of the connecting pieces. The buckle device as claimed in claim 2, wherein each of the pivot members is in the shape of a bobbin and has a shaft portion and two end pieces located at both ends of the shaft portion, and the space between the two end pieces is used for the flanges of the two pipe pieces Embedded abutment. The buckle device as claimed in claim 1, wherein the first part of the positioning mechanism comprises a main body and a pressing rod, the main body and the pressing rod are connected with the opposite ends respectively pivoting with the first connecting piece and the second part catch. The buckle device according to claim 4, wherein the second part of the positioning mechanism comprises a pivot block and a hook, the pivot block is pivotally connected to the body of the first part, and the hook is located on the pivot block Relative to one end of the body, the hook is detachably hooked to the second pivot. The buckle device as claimed in claim 5, wherein the second part of the positioning mechanism further comprises a screw, the screw penetrates the pivot block and the hook to make the pivot block and the hook mutually Adjustable connection. The buckle device according to claim 5, wherein the main body is generally in the shape of a ㄇ-shaped sheet, and the main body is provided with at least one first pivot hole and at least one second pivot hole, and the first connecting piece is connected by a The pivot is pivoted to the first pivot hole, and the pivot block of the second part is pivoted to the second pivot hole. The buckle device as claimed in claim 7, wherein the body comprises a bottom surface and two side surfaces, and the two side surfaces respectively form the first pivot hole and the second pivot hole. The buckle device according to claim 8, wherein the position of the pivot is located between the pivots at opposite ends of the first connecting piece. The buckle device as claimed in claim 1, wherein each of the connecting pieces is a ring-shaped pivot piece sleeved on both ends thereof.

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