JPS628646Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a connection structure for pipes and the like in an assembly using members such as pipes as aggregates.

For example, in assembled structures that use factory passages, scaffolding, and other pipes as aggregates, the connection structure between pipes and other members is often done by fastening means using screws such as bolts and nuts, or by welding means. However, it takes time to connect and assemble them.

In view of the above, it is an object of the present invention to provide a connection structure that allows members such as pipes to be easily connected and assembled, and that can maintain a securely connected state.

Next, embodiments of the present invention will be described based on the drawings.
Reference numeral 1 denotes a connecting member having a substantially H-shaped cross section and having reversely tapered dovetail recesses 2 and 2' facing each other on both sides, and the opening width of the dovetail recesses 2 and 2' is determined by the size of the pipes, etc. to be connected. The thickness is slightly larger than that of the end portions of the connected members a and a'. 3 and 3' have a substantially U-shaped cross section that can be fitted onto the connected members a and a', and latching claws 4, 4, 4' are provided at required fixed points or over the entire length inside the open ends of both pieces. , 4' are clamping members formed in a protruding manner. a and
a', and the outer width of the opening end is slightly larger than the opening width of the dovetail groove-shaped recesses 2, 2' of the connecting member 1. The continuous end sides of both pieces are bent continuously from the outer surface of the opening end and are tapered so that the continuous end sides thereof are smaller than the opening width of the recesses 2 and 2', and the end surfaces are substantially flush with the recesses 2 and 2'. It is ready to be inserted. The clamping members 3 and 3' are fitted onto the ends of the connecting members a and a', such as pipes, respectively, and these portions are connected to the connecting members 1 and 3'.
are press-fitted into the dovetail groove-shaped recesses 2, 2' on both sides of the abutment, whereby the ends of the connected materials a, a' are clamped and held by the clamping members 3, 3'. .
In particular, the opening ends of the clamping members 3, 3' are pressed in the direction of narrowing the width from both sides by the connecting member 1 due to the press-fitting, and as a result, the locking claws 4,
4, 4', 4' are in a state of biting into the connected members a, a'. In other words, the members a, a' to be connected are held by the clamping members 3, 3' in a partially bitten state, and the clamping members 3, 3' are clamped to the connecting member 1.
The dovetail groove-shaped recesses 2 and 2' are fitted and held in the dovetail groove-like recesses 2 and 2', and the two are connected.

The connecting member 1 and the clamping members 3, 3' are made of a relatively strong material such as steel due to the biting action, etc., and the pipes to be connected are made of a relatively soft iron material. It is preferable to use the following. Normally, the connecting member 1 does not undergo much elastic deformation, and the wall thickness, etc. of the clamping members 3, 3' are set so that they can be elastically deformed to some extent.

In addition, when the connected members a and a' to be connected by the above-mentioned connection structure of the present invention are pipes as shown in the figure, they are connected by the above-mentioned connection structure at a plurality of positions at required intervals in the circumferential direction of the ends of the pipes. It is desirable to do so. In addition, the connecting member 1 is formed into an annular shape corresponding to the end of the pipe, and the clamping member 3,
3' can also be formed into an annular shape or a segmented shape in the circumferential direction. Furthermore, even when the material to be connected is aggregate other than pipes, it is desirable to connect them at multiple locations.

As described above, the present invention has a cross section of approximately H which has oppositely tapered dovetail grooves 2 and 2' on both sides.
A connecting member 1 having a U-shaped cross section and a clamping member 3, 3' having a hooking claw 4, 4, 4', 4' on the inside of the opening end are used. ' is fitted onto the ends of the connected members a, a' such as pipes to be connected, and this part is press-fitted into the dovetail groove-shaped recesses 2, 2' on both sides of the connecting member 1. The end portions of materials a, a' are clamped and held by clamping members 3, 3' and connected, and the materials a, a' to be connected are
Fitting of clamping members 3, 3' to a' and connecting member 1
The connected materials a and a' can be connected to each other by a simple operation of press-fitting into the dovetail groove-shaped recesses 2 and 2', and the connecting operation does not require tightening with bolts or nuts or welding means. can be done extremely easily and efficiently.

In addition, in the connected state, the clamping members 3, 3' fitted on the connected members a, a' are pressed from the outside by press-fitting into the dovetail groove-shaped recesses 2, 2' of the connecting member 1. As a result, the latching claws 4, 4,
4', 4' are biting into the connected members a, a', and the spreading action of the clamping members 3, 3' is blocked by the connecting member 1, so that the connected members a, a ' can be reliably prevented from slipping out from the clamping members 3, 3', and the members to be connected a, a' can be securely clamped and held by the clamping members 3, 3'. ' itself is prevented from coming off by the reverse tapered shape of the dovetail groove-like recesses 2, 2' and is securely held within the recesses 2, 2', so that the ends of the connected members a, a' are connected to the connecting member 1. They are firmly connected through the middle, ensuring a reliable and safe connection.

As described above, the present invention is an excellent practical structure that can be used as a connection structure between pipes and other members in various assemblies using pipes and other members as aggregates, as it is extremely easy to perform the connection operation and can maintain a good connection state. It is effective.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a sectional view before connection, and FIG. 2 is a sectional view in a connected state. 1... Connecting member, 2, 2'... Dovetail groove shaped recess,
3, 3'...Holding member, 4, 4, 4', 4'...Latching claw, a, a'...Connection member.

Claims (1)

[Scope of utility model registration request] The ends of materials to be connected, such as pipes, are connected to each other through a connecting member having a generally H-shaped cross section with oppositely tapered dovetail grooves on both sides, and the ends of the materials to be connected are A clamping member having a substantially U-shaped cross section and a hooking claw inside the opening end is fitted, and this part is press-fitted into the recesses on both sides of the connecting member, so that the end of the material to be connected is A connecting structure for pipes, etc., characterized in that the parts are clamped and held by clamping members.