JP2535358Y2 - Pipe connection fitting - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe connecting fitting (also referred to as a clamp fitting) for connecting intersections of pipe supports for supporting a scaffold at a construction site or the like.

[0002]

2. Description of the Related Art An assembling scaffold generally used at a construction site or the like is performed by connecting pipes vertically and horizontally by pipe connecting fittings.
As shown in FIGS. 3 and 4, one end of a fixed receiving member 54 and a movable receiving member 55 each having a substantially semicircular pipe receiving portion 52, 53 into which a pipe 51 is fitted are connected by a pin 56, and the other end is connected. The fixing receiving members 54 of the pair of pipe fixing tools 58, 59 which can be detachably tightened by fastening means 57 comprising a screw mechanism are rotatably connected by connecting pins 62 having caulking portions 60, 61 at both ends. Was.

[0003]

However, in the pipe connecting fitting 50, it is necessary to manufacture the connecting pin 62 in addition to the fixing receiving member 54 and the like, so that an extra material is required. Since both sides are caulked, an extra manufacturing process is required, resulting in a problem that the product price rises. In addition, it is difficult to adjust the clearance of the connecting pin 62 and the caulking portion 6 of the connecting pin 62 is difficult.
If the gap between 0, 61 and the fixing receiving member 54 is small, the circumference of the pipe fixing tools 58, 59 is poor, resulting in a defective product. The present invention has been made in view of such circumstances, and an object of the present invention is to provide a pipe connecting fitting that simplifies a manufacturing process, saves materials, and can be manufactured at low cost.

[0004]

According to the present invention, there is provided a semiconductor device comprising:
The pipe connection fitting described above has a pair of fixed receiving members and movable receiving members in which arcuate pipe receiving portions are provided on the inside, and one end is rotatably connected by a pin,
A pipe connection fitting which is rotatably connected by a connecting means to a pair of pipe fixing tools each comprising a fastening means comprising a screw mechanism for fastening the fixed receiving member and the movable receiving member; The means is constituted by a tubular caulking projection integrally projecting from the fixing receiving member of the one pipe fixing tool.

[0005]

In the pipe connecting fitting according to the first aspect, the connecting means for connecting the pipe fixing tool is constituted by a circular caulking projection integrally projecting from a fixing receiving member of one of the pipe fixing tools. Therefore, the pipe fixture can be connected only by caulking work on one side. Then, a hole is provided only on one side of the pipe fixing tool, and only the caulking projection on one side is swaged. Therefore, the conventional connecting pin having the caulked portions on both sides is unnecessary.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the accompanying drawings to facilitate understanding of the present invention. Here, FIG. 1 is a partial sectional view of a pipe connecting fitting according to an embodiment of the present invention, and FIG. 2 is a partial sectional view showing a manufacturing process.

As shown in FIGS. 1 and 2, a pipe connecting fitting 10 according to an embodiment of the present invention is made of steel.
Opposite arc-shaped pipe receiving portions 11 and 11a are provided on the inner side, respectively. A pair of fixed receiving members 13, 13a and a movable receiving member 14, one end of which is rotatably connected by a pin 12, and the fixed receiving member It has a pair of pipe fixtures 16 and 17 each having a member 13, 13 a and a fastening means 15 for fastening the movable receiving member 14. Less than,
These will be described in detail.

The pipe receiving portions 11 and 11a are formed in accordance with the outer diameter of the pipe 18 to be connected.
One of the pipes 18 and 19 is sandwiched between 3, 13a and the movable receiving member 14, and is fastened by the fastening means 15. The fastening means 15 includes an auxiliary fitting 21 rotatably mounted on the fixed receiving members 13 and 13 a by a pin 20, a bolt 22 attached to the auxiliary fitting 21, and a nut 23 screwed to the bolt 22. And

As shown in FIG. 2A, when connecting the pipe fixing members 16 and 17, two pipe fixing members 1 are used.
7 is formed with a tubular caulking projection 24 protruding by press working or the like on the fixing receiving member 13a, and the caulking projection 24 is formed on the fixing receiving member 13 of the other pipe fixing tool 16.
A hole 25 having a slightly larger diameter is formed in advance. And
As shown in FIG. 2 (B), (C) , by the caulking projection 24 is inserted wear holes 25, is curled outwardly to its end by a press or the like, the pipe fastener 16, 17
Concatenate. In this case, if the caulking projection 24 is completely brought into contact with the fixed receiving member 13, the turning state of the pipe fixing members 16 and 17 is poor. Therefore, a small gap is provided and the pipe fixing member 16 is smoothly moved. , 17 are turned.

[0010]

According to the first aspect of the present invention, as is apparent from the above description, the connecting means for connecting the pipe fixture integrally protrudes from the fixing receiving member of one of the pipe fixtures. Since it is constituted by the cylindrical caulking projection, the conventionally used connecting pin is not required, and the material can be saved. In addition, since the connecting means is constituted by a tubular caulking projection integrally projecting from the fixing receiving member of the one pipe fixing tool, the caulking gap can be appropriately adjusted, and only one side caulking operation is performed. With this, the pipe fixtures could be connected, and the working process could be shortened. Further, by increasing the diameter of the caulking projection, it was possible to provide a pipe connecting fitting having sufficient strength. Therefore, it is possible to provide an inexpensive pipe connection fitting which has a simpler structure than conventional pipe connection fittings.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional view of a pipe connection fitting according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing work steps.

FIG. 3 is a partial cross-sectional view of a conventional pipe connection fitting.

FIG. 4 is a partial sectional view of the same.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Pipe connection metal 11 Pipe receiving part 11a Pipe receiving part 12 Pin 13 Fixed receiving member 13a Fixed receiving member 14 Movable receiving member 15 Fastening means 16 Pipe fixing tool 17 Pipe fixing tool 18 Pipe 19 Pipe 20 Pin 21 Auxiliary fitting 22 Bolt 23 Nut 24 crimping projection 25 hole

Claims (1)

(57) [Scope of request for utility model registration] 1. A pair of fixed receiving members and movable receiving members, each having an arcuate pipe receiving portion provided on an inner side, and one end of which is rotatably connected by a pin, and a pair of fixed receiving members and movable receiving members. A pipe connection fitting which is rotatably connected by a connecting means to a pair of pipe fixing tools each provided with a fastening means comprising a screw mechanism for fastening the pipe means, wherein the connecting means is fixed to the one pipe. A pipe connecting fitting formed by a circular caulking projection integrally projecting from a fixture receiving member of the fitting.