JPS597076B2 - A method of attaching a connecting pipe extending in a criss-cross pattern to a transport pipe, and a pipe fitting used in this method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a pipe joint for attaching a criss-cross connecting pipe to a transport pipe for conveying moderately heated liquids, gases or similar media to radiake and other objects. It is.

Previously known pipe fittings for connecting supply pipes and/or return pipes to radiators, in which the connecting pipe of the radiator is attached to the supply pipe or return pipe for moderately heated water circulating in a closed circuit of the hot water system. Since it is very difficult to do so, the installation work is complicated and takes a lot of time.

The supply and return pipes are generally first attached to the wall of the building, after which the radiator is fixed and connected to said pipes.

The radiator has pipe fittings installed before the pipes are installed.

The position of the radiator is therefore predetermined with respect to the pipe fitting and it is therefore very difficult to change the predetermined position if necessary.

When using previously known pipe fittings, it is necessary to arrange separate valves on the tubes at various locations to regulate or stop the flow of fluid so that the flow rate of the fluid can be regulated.

An object of the present invention is to provide a pipe joint for attaching a cross-shaped connecting pipe to a fluid transport pipe, which comprises two joint halves fluid-tightly surrounding the transport pipe, one half of which is connected to the transport pipe. forming a guide passageway and at least one flow passageway communicating with the guide passageway and the connecting pipe; a punching member having a cutter portion at one end in a fluid-tight manner within the guide passageway with the cutter portion facing toward the transport pipe; and slidably disposed, and an adjustment member is fluid-tightly and rotatably mounted to the other end of the perforation member such that the perforation member can be slidably disposed, whereby the adjustment member is rotated to allow the perforation member to be adjusted. sliding toward the transport pipe, drilling a hole in the transport pipe with a cutter portion of the piercing member, the hole comprising at least one guide member directing the flow of fluid in the transport pipe towards the connecting pipe; It is an object of the present invention to provide a pipe joint characterized in that the edge of the valve seat is used as a valve seat, and a portion of the cutter of the hole-drilling member facing the hole is used as a valve surface that acts on the valve seat.

According to the pipe joint according to the present invention, the pipe joint can be effectively installed at any desired position along the already installed supply pipe and return pipe.
The pipes can be connected quickly, so that the connecting pipe of the radiator can be aligned with the radiator in a fixed position.

Additionally, the fitting allows fluid flow to be regulated without the use of separate valves to regulate or stop flow.

Therefore, the cost of purchasing and installing the device can be reduced considerably.

The pipe fitting according to the invention will now be described in detail with reference to the accompanying drawings.

A transport pipe is shown in the drawings at 10, and a number of fittings surrounding the transport pipe are arranged at appropriate intervals and in sealing connection to the pipe.

Each fitting consists of two fitting halves 11 surrounding a transport pipe 10.
．． 11', these halves can be joined together and are made of steel, metal, synthetic plastic material or other suitable material.

One of the halves 11 is considerably larger in volume than the other halide 11'.

The coupling halves 11, 11' surround the transport pipe 10 and are threaded 1
2 and 12' are joined to each other.

However, other devices than screws can also be used for this attachment.

A sealing compound, elastic gasket or similar device may be used as a seal for the transport tube 10.

A guide channel 13 is arranged in the larger coupling half 11 as a through hole pointing towards the transport pipe 10, and the tubular guide member 14 is screwed into this guide channel.

The tubular guide member 14 includes a piercing member, generally indicated at 15, which is slidably disposed within the tubular guide member.

As shown in FIGS. 2 and 3, the tubular guide member 14 has at its free end a wheel-shaped adjustment member 16 7, which has a measuring scale.

The perforating member 15 extending in the vertical direction has a threaded portion 15' at one end thereof, and this threaded portion is connected to the wheel-shaped adjustment member 1.
6 , thereby rotating the adjusting member 16 and moving the drilling member 15 into the tubular guide member 14 .
It can be moved inside.

A cutter member 15 is provided at the opposite end of the hole punching member 15.
" is placed, and this cutter member is inserted into the hole 1 in the wall of the transport pipe.
You can open the T.

Each of the holes 17 formed in the transport pipe 10 has a guide member 18 that slopes towards the central axis of the transport pipe 10, which guide member prevents the material of the pipe from extruding when the hole 17 is formed. I can do it.

One or more flow passages 1 9 , 19 ′, i9″ are arranged in the larger fitting half 11 , at least one flow passage 19 having an end facing towards the transport pipe 10 . A portion communicates with the guide passage 13.

The remaining flow passages 19', 19'' open into and extend from the flow passage 19.

Each flow passage 1 9 , 19 ′, 19 // terminates in one outer surface of the larger joint half 11 and is connected to a flow passage 1 9 .
, 19', 19'' have threads for attaching coupling devices, for example coupling members 20, 20', for connecting pipes 21 to radiators or similar objects. It is.

In the pipe coupling halves 11 described above, the guide passage 13 is oriented at right angles to the longitudinal axis of the transport pipe 10, and the drilling member 15 is capable of drilling a hole in the transport pipe 10 under the action of impact, pressure or explosive force. It is arranged so that 17 is pushed open.

The drilling cutter portion 15'' of the drilling member 15 is preferably conical and serves as a surface of the movable valve, which is in a sealed position relative to the edge of the hole 17 serving as the valve seat and to the guide member 18.

The perforation member 15, the hole 17 and the guide member 18 constitute a valve, which regulates the flow from the transport pipe 10 to the connecting pipe 21.

If explosive force is used to form the hole 17 in the transport tube 10, a cartridge equipped with an ignition pin and housed in a holder (not shown) can typically be used, and the wheel shape adjustment Prior to attaching the member 16 to the threaded or free end portion 15 of the drilling member 15 and the tubular guide member 14, an explosive force is applied to the free end portion 15' of the drilling member 15 in the direction of its longitudinal axis.

In addition, when pressure is used to form the hole 17, after the wheel-shaped adjusting member 16 is attached to the drilling member 15, the adjusting member 1
6, the perforating member 15 is inserted into the transport pipe 1, as already explained in lines 3 to 11 on page 7.
0 wall and make a hole 17 in that wall.

As illustrated in FIG. When the perforating member 15 is moved towards the transport pipe 10 , the perforating member 15 acts as a stop member against the reduced diameter portion 24 of the tubular guide member 14 .
prevent it from protruding from its designated position.

Between the inside of the tubular guide member 14 and the perforating member 15,
A resilient sealing gasket is placed.

As shown in FIG. 4, the positioning scale is the wheel-shaped adjustment member 1
Instead of being provided in the hole 6, it may be provided in the free end portion 15' of the punching member 15.

Other types of devices known in the art may be used for adjustment.

In the variant embodiment of the pipe coupling device 11.11' shown in FIG.
It is arranged obliquely with respect to the vertical axis of 0.

One end portion 15l of the cutter of the punching member is formed into a cutting edge shape, and applies force to the free end of the punching member 15 to cut the transport pipe 10.
When forming the hole 17 in the hole 17, it acts as a cutter.

According to this embodiment, with the edge of the hole 17, an inwardly facing guide member 18 and an outwardly facing guide member 1 are provided.
8/ is formed in the transport pipe 10.

Furthermore, the inner member 14/ has a helical spring 24' acting on the perforating member 15, and the adjusting member 16'' is arranged to act on the perforating member 15.

This embodiment is very suitable if the transport tube is a relatively soft metal, for example copper.

A bolt or nail impact gun can be used to utilize the explosive impact force, which can be tailored to the material and thickness of the transport tube.

The cutter portion 15/, 15/// of the hole punching member is
The slightly conical shape ensures that there is always a sealing contact with the edge of the hole 17 and with the guide member 18 or 18, 187.

The guide member 18 has the function of guiding a flow from the transport pipe 10, for example, a water flow.

The main features of the invention are that the holes are formed quickly and cheaply in the transport pipe, that the perforating member 15 in combination with the holes 17 constitutes an effective valve for regulating the flow rate or completely stopping the flow;
This means that a separate valve member is no longer required and the installation costs can be reduced considerably compared to the prior art.

This invention also encompasses all pipe fittings modified within the scope of this invention.

[Brief explanation of drawings]

FIG. 1 is a perspective view of one embodiment of a pipe fitting attached to a transport pipe, and FIG. 2 is a perspective view of one embodiment of a pipe fitting attached to a transport pipe, and FIG. FIG. 3 is a drawing of a modified embodiment having three flow passages leading to three outer surfaces of the pipe joint and three connecting members for attaching pipes; FIG. 4 is a drawing of an embodiment; FIG. ,
two flow passages communicating with the two outer surfaces of the pipe joint;
5 is a drawing of another variant embodiment having a flow regulating member of a different type than that shown in the figure, FIG. FIG. 6 is a longitudinal cross-sectional view of another modified embodiment of the pipe joint in which the perforating member is arranged so as to bite into and cut out the transport pipe. In the figure, 10 is a transport pipe, 11, 11' are two halves of a pipe joint, 13 is a guide passage leading to the transport pipe, 15 is a drilling member, and 15'', 15/// are the ends of the drilling member. 16, 16'' is the wheel-shaped adjustment member, 17 is the cutter portion,
19, 197, 19" are flow passages, 2
1 indicates a connecting pipe.

Claims (1)

[Claims] 1. In a pipe joint for attaching a cross-shaped connecting pipe 21 to a fluid transport pipe 10, two joint halves 11.1 fluid-tightly surround the transport pipe 10. 1 1', and one half 11 has a guide passage 1 leading to the transport pipe 10.
3 and at least one flow passage 19, 1 9', 19'' communicating with the guide passage 13 and the connecting pipe 21, and a hole punching member 15 provided at one end with a cutter part 15'', 15''. ", 15" is fluid-tightly and slidably disposed in the guide passage 13 so as to face the transport pipe 10, and the adjusting member 16 is arranged in a perforating member such that the perforating member 15 can be slid therein. 15 is fluid-tightly and rotatably mounted to the other end of the drilling member 15, thereby rotating said adjustment member 16 to slide the drilling member 15 towards the transport pipe 10, and the cutter portions 15'', 15 of the drilling member 15 are rotated.
a hole 17 is drilled in the transport pipe 10 by <4>, the hole 17 being provided with at least one guide member 18, 18' directing the flow of fluid in the transport pipe 10 towards the connecting pipe 21;
The pipe is characterized in that the edge of the hole 17 is used as a valve seat, and the cutter portions 15'', 15'' of the hole punching member 15 facing the hole 17 are used as a valve seat that acts on the valve seat. Fittings.