TWI711784B - 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 invention relates to a fastening device, in particular to a fastening device used for fixing the flange of a pipe fitting.

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 separate again, other temporary connection fixing means, 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 removed immediately.

Among them, a typical flange clamp is disclosed in the patent US 5522625, which usually includes two semicircular ring bodies and a fixing mechanism connected between the two ring bodies. The two ring bodies are sleeved on the two flanges to The two flanges are clamped in it, and the two ring bodies are tightened by a fixing mechanism to achieve the fixing effect.

However, the shape and size of the clamping surface of this type of structure depends on the inner surfaces of the two rings, that is, only flanges of a certain size can be 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, the effect is not good, or even it may not be fixed at all.

Therefore, how to improve the effect of the flange clamp on the flange and adapt 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 fastening device which can contact and clamp flanges more reliably and is suitable for flanges of different sizes.

In order to achieve the above objective, the present invention provides a buckling device for buckling and fixing the flanges of two pipes to each other. The buckling device includes a chain assembly and a positioning mechanism.

The chain assembly includes a plurality of connecting pieces and a plurality of pivoting pieces. The connecting pieces are pivotally connected by the pivoting pieces in sequence to form a chain shape. The connecting piece at one end of the chain assembly is defined as a first connecting piece. The free end of the first connecting piece has a first pivot, 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.

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 member or the The connection line from the point where one of the first connecting pieces is pivoted to the point where the first part and the second part are pivoted defines a second direction, the second part is detachably positioned to the second pivot, the first One part can pivot relative to the second part between a release position and a positioning position. When the first part is at the positioning position, the second part is positioned to the second pivot and the chain assembly tightens the first part. A direction is parallel to the second direction or an angle less than 180 degrees is formed on the side far from the center of curvature of the chain assembly. When the first part is in the release position, the first direction and the second direction are far away from the chain. One side of the center of curvature of the component has an included angle greater than 180 degrees; wherein, the connecting pieces include a plurality of the connecting pieces, and the connecting pieces are arranged side by side at a certain distance from each other and connected to the adjacent connecting pieces respectively. The pivot is arranged between a pair of the connecting pieces; wherein each pivot is generally in the shape of a spool 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 provided for the two end pieces. The flange of the pipe fitting is embedded against the top.

In order to achieve the above-mentioned object, the present invention also provides a fastening device for fastening the flanges of two pipes to each other. The fastening device includes: a chain assembly including a plurality of connecting pieces and a plurality of pivots, the The connecting pieces are pivoted in sequence by the pivots to form a chain shape. The connecting piece at one end of the chain assembly is defined as a first connecting piece, and the free end of the first connecting piece has a first pivoting 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; a positioning mechanism includes a first part and a second part. A part and the second part are pivotally connected to each other, the first part is pivotally connected to one of the first pivot member or the first connecting piece, the length direction of the first connecting piece defines a first direction, the first part and the The line connecting the first pivot member or the first connecting piece to the pivoted position of the first part and the second part defines a second direction, and the second part is detachably positioned to the first part Two pivots, the first part can pivot relative to the second part between a release position and a positioning position. When the first part is at the positioning position, the first direction is parallel to the second direction or far away from the One side of the center of curvature of the chain assembly has an included angle less than 180 degrees. When the first part is in the release position, the first direction and the second direction sandwich an angle greater than 180 degrees on the side away from the center of curvature of the chain assembly. The included angle; wherein the first part of the positioning mechanism includes a body and a pressing rod, the body is connected with the pressing rod and opposite ends are respectively pivoted with the first connecting piece and the second part.

In order to achieve the above-mentioned object, the present invention further provides a fastening device for fastening the flanges of two pipes to each other. The fastening device includes: a chain assembly including a plurality of connecting pieces and a plurality of pivots, the The connecting pieces are pivoted in sequence by the pivots to form a chain shape. The connecting piece at one end of the chain assembly is defined as a first connecting piece, and the free end of the first connecting piece has a first pivoting 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; a positioning mechanism includes a first part and a second part. Part of Is pivotally connected to the second part, the first part is pivotally connected to one of the first pivot member or the first connecting piece, the length direction of the first connecting piece defines a first direction, the first part and the first connecting piece A line connecting a pivotal member or one of the first connecting pieces to a pivotal position of the first part and the second part defines a second direction, and the second part is detachably positioned to the second The pivot member, the first part can pivot between a release position and a positioning position relative to the second part, and when the first part is located at the positioning position, the first direction and the second direction are parallel to or away from the chain One side of the center of curvature of the assembly includes an angle less than 180 degrees. When the first part is in the release position, the first direction and the second direction include an included angle greater than 180 degrees on the side away from the center of curvature of the chain assembly. ; Wherein, each of the connecting pieces is ring-shaped and sleeved on the pivots at its two ends.

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.

10, 10’: chain components

11, 11’: connecting piece

111: The first connecting piece

112: second connecting piece

12: pivot

1201: The first pivot

1202: second pivot

121: Shaft

122: end piece

20: positioning mechanism

21: Part One

211: body

2111: The first pivot hole

2112: second pivot hole

212: pressure bar

213: Pivot

22: Part Two

221: Pivot Block

222: hook

223: Screw

30: The first pipe

31: flange

40: The second pipe

41: flange

Figure 1 is a perspective view of the present invention.

Figure 2 is a perspective exploded view of the present invention.

3 and 4 are schematic diagrams of the operation of the present invention.

Figure 5 is a perspective view of the second embodiment of the present invention.

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

Please refer to FIGS. 1 to 5, the present invention provides a fastening device for fastening the flanges of two pipes to each other. The fastening device includes a chain assembly 10, 10' and a positioning mechanism 20.

The chain assembly 10, 10' includes a plurality of connecting pieces 11, 11' and a plurality of pivot members 12, the connecting pieces 11, 11' are respectively pivotally connected by the pivot members 12 to form a chain shape, and are located in the chain The connecting piece 11 at one end of the assembly 10, 10' is defined as a first connecting piece 111, the free end of the first connecting piece 111 has a first pivot 1201, and the other end of the chain assembly 10, 10' 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 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, the first part 21 and the first pivot 1201 or one of the first connecting piece 111 The length direction of the first connecting piece 111 defines a first direction. The first part 21 is pivotally connected to the first pivot 1201 or one of the first connecting piece 111 to the first part 21 and The line connecting the second part 22 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 When the first part 21 is located at the positioning position, the first direction is parallel to the second direction or a side away from the center of curvature of the chain assembly 10, 10' is sandwiched by less than 180 degrees When the first part is in the release position, the first direction and the second direction include an included angle greater than 180 degrees on the side away from the center of curvature of the chain assembly 10, 10'.

Regarding the chain assembly 10, specifically, the connecting pieces 11 include a plurality of the connecting pieces 11, and each of the connecting pieces 11 is arranged side by side with a certain distance from each other and connected to the adjacent connecting pieces 11, respectively, and each of the pivots The piece 12 is arranged between a pair of the connecting pieces 11, and each of the pivot pieces 12 is generally in the shape of a spool 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 121 and the space between the two end pieces 122 are for the flanges of the two pipes to be embedded against the top.

Regarding the positioning mechanism 20, in this embodiment, the first part 21 of the positioning mechanism 20 includes a body 211 and a pressure rod 212, the body 211 is connected to the pressure rod 212, and opposite ends 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, and the hook 222 is located at an end of the pivot block 221 opposite to the main body 211, and the hook member 22 is detachably hooked to the second pivot member 1202. More specifically, the main body 211 is generally in the shape of a ㄇ-shaped sheet 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 via a pivot 213 Hole 2111 (preferably, the position of the pivot 213 is between the pivots 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 Connected (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 it protrudes between the two sides of the body 211.

In actual use, the chain assembly 10 is sleeved on the adjacent flanges 31 and 41 of a first pipe 30 and a second pipe 40, and the hook 222 is hooked on the second pivot 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, and if it is used for flanges with different outer diameters For the tube, the screw can be screwed to adjust the distance between the hook and the pivot block, and 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 ring-shaped and is sleeved on the pivots at both ends thereof, and the pivoting pieces are sequentially connected by the ring-shaped connecting pieces to form a chain shape.

With the above structure, the fastening device provided by the present invention can more reliably fit the outer edge of the flange of the pipe to tightly join the flange, and the chain structure has a better fixing effect than the ring structure. In addition, the fastening device of the present invention can be applied to pipe flanges of different sizes, and the operation and adjustment are simple and the use effect is excellent.

10: Chain components

11: connecting piece

12: pivot

20: positioning mechanism

21: Part One

22: Part Two

30: The first pipe

31: flange

40: The second pipe

41: flange

Claims (8)

A buckling device for buckling and fixing the flanges of two pipe fittings to each other. The buckling device includes: a chain assembly, including a plurality of connecting pieces and a plurality of pivots, and the connecting pieces are sequentially arranged with the pivots. The connecting piece at one end of the chain assembly is defined as a first connecting piece, the free end of the first connecting piece has a first pivot piece, and the other end of the chain assembly The connecting piece is defined as a second connecting piece, the free end of the second connecting piece has a second pivot; 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 member or the first connecting piece, the length direction of the first connecting piece defines a first direction, and the first part is connected to the first pivot member or the first connection The line from the point where one of the pieces is pivoted to the point where the first part and the second part are pivoted defines a second direction, the second part is detachably positioned to the second pivot, and the first part can be opposite The second part pivots between a release position and a positioning position. When the first part is located at the positioning position, the first direction is parallel to the second direction or a side away from the center of curvature of the chain assembly is clamped The included angle is less than 180 degrees. When the first part is in the release position, the first direction and the second direction include an included angle greater than 180 degrees on the side away from the center of curvature of the chain assembly; wherein, the connecting pieces include A plurality of the connecting pieces, each pair of connecting pieces are arranged side by side with a certain distance from each other to be connected to the adjacent connecting pieces respectively, and each pivot piece is arranged between a pair of the connecting pieces; wherein, each pivot piece is generally It is in the shape of a spool 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 for the flanges of the two pipes to be embedded and pressed against the top. A buckling device for buckling and fixing the flanges of two pipes to each other, the buckling device includes: A chain assembly includes a plurality of connecting pieces and a plurality of pivoting pieces. The connecting pieces are pivotally connected by the pivoting pieces in sequence to form a chain shape. The connecting piece at one end of the chain assembly is defined as a first A connecting piece, the free end of the first connecting piece has a first pivot, 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 ; A positioning mechanism comprising 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 member or the first connecting piece, the first The length direction of a connecting piece defines a first direction, and the connection line from the point where the first part is pivoted to the first pivot member or one of the first connecting piece to the point where the first part and the second part are pivoted A second direction is defined, the second part is detachably positioned to the second pivot member, 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 Position, the first direction is parallel to the second direction or an included angle of less than 180 degrees is formed on the side far from the center of curvature of the chain assembly. 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; wherein, the first part of the positioning mechanism includes a body and a pressure rod, the body is connected to the pressure rod and opposite ends are respectively connected to the first A connecting piece is pivotally connected to the second part. The fastening device according to claim 2, wherein the second part of the positioning mechanism includes 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 main body, the hook is detachably hooked to the second pivot. The buckle device according to claim 3, wherein the second part of the positioning mechanism further includes a screw member, the screw member penetrates the pivot block and the hook member so that the pivot block and the hook member are mutually connected Adjustable connection. The buckle device according to claim 3, wherein the body is generally in the shape of a ㄇ-shaped sheet, and the body is provided with at least one first pivot hole and at least one second pivot hole, and the first connecting piece is formed 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 fastening device according to claim 5, wherein the main body includes a bottom surface and two side surfaces, and the two side surfaces respectively form the first pivot hole and the second pivot hole. The fastening device according to claim 6, wherein the position of the pivot is between the pivots at opposite ends of the first connecting piece. A buckling device for buckling and fixing the flanges of two pipe fittings to each other. The buckling device includes: a chain assembly, including a plurality of connecting pieces and a plurality of pivots, and the connecting pieces are sequentially arranged with the pivots. The connecting piece at one end of the chain assembly is defined as a first connecting piece, the free end of the first connecting piece has a first pivot piece, and the other end of the chain assembly The connecting piece is defined as a second connecting piece, the free end of the second connecting piece has a second pivot; 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 member or the first connecting piece, the length direction of the first connecting piece defines a first direction, and the first part is connected to the first pivot member or the first connection The line from the point where one of the pieces is pivoted to the point where the first part and the second part are pivoted defines a second direction, the second part is detachably positioned to the second pivot, and the first part can be opposite The second part pivots between a release position and a positioning position. When the first part is located at the positioning position, the first direction is parallel to the second direction or a side away from the center of curvature of the chain assembly is clamped An included angle less than 180 degrees, when the first part is in the release position, the first direction and the second direction include an included angle greater than 180 degrees on the side away from the center of curvature of the chain assembly; Wherein, each of the connecting pieces is ring-shaped and is sleeved on the pivots at its two ends.

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