JPH04312289A - Fabricating fixture for short nipple - Google Patents

Abstract

PURPOSE:To provide a fabricating fixture which can facilitate working a short nipple to be used for adjusting a pipe in length while being accessed from the cut end of the pipe when the nipple is used for plumbing for water supply, gas, oil and the like at a work site. CONSTITUTION:A fabricating fixture for a short nipple is made up of a pipe joining socket 1, a screw-in block 2 which is threadedly engaged with the pipe joining socket while being provided with a screw-in locking section 4 at least in its one surface, a tip end engaging section 5 which is engaged with the screw-in locking section, at the tip end of it, and of a screw-in handle 3 furnished with a position adjusting means 6 for the screw-in block.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manufacturing tool that can easily fabricate a short nipple for finely adjusting the length of a pipe, which is used particularly at waterworks and other piping construction sites such as gas and oil piping.

0002

[Prior Art] Piping work that requires thread cutting, such as water supply, oil supply, gas supply, etc. in buildings such as ordinary houses, schools, buildings, and factories, requires work in extremely dimensionally limited environments. For this reason, the current situation is that the construction work is completed while using short nipples for fine adjustment in various places. These short nipples have been standardized in the industry, and are commercially available as piping parts whose length is determined by the pipe diameter.

0003

[Problem to be Solved by the Invention] For those involved in piping, the work at bent points of pipes requires the most effort to improve appearance and efficiency, and it takes many years to master the work. Also, even if you are an expert, there are often dimensional inconveniences with existing short nipple piping, and if you have a slightly longer or shorter nipple,
In many cases, construction can proceed more smoothly. In reality, each case is handled by making multiple folds (also called elbow return) by using extra elbows of pipe joints.

[0004] Thread cutting machines currently used for piping work have structural limitations on the pipe clamping part (chuck) and thread cutting part (die head), although this varies depending on the diameter of the pipe to be threaded. Short nipples cannot be cut. By the way,
Even the shortest pipe that can be cut, commonly known as 15A to 20A, has a pipe length of 90
Cannot cut mm pieces. If the pipe diameter increases to 1 inch to 2 inches, a pipe length of 125 mm is at risk. If you want to make a shorter tube of any length, for example a short nipple with a tube length of 70 mm, which is not available on the market, you will have to crush the thread on one side of the tube, or
This was extremely difficult and caused damage to the thread cutting machine.

[0005]

[Means for Solving the Problems] The present invention compensates for the structural shortcomings of such thread cutting machines, and makes it possible to easily manufacture short nipples for fine adjustment, which has hitherto been considered impossible to manufacture on site. Its structural gist is a pipe fitting socket 1, a threaded block 2 having a threaded locking part 4 on at least one side that is screwed into the pipe fitting socket, and a threaded block 2 having a threaded locking part 4 at its tip that fits into the screwed locking part. This is a short nipple manufacturing tool consisting of a tip fitting part 5 and a screw handle 3 equipped with a positioning adjustment means 6 for the screw block 2.

[0006] Here, the pipe fitting socket 1 can be used as a commercially available socket, or it is usually attached to the end of a pipe to protect the threaded end of threaded pipe. Even if it is used, there will still be a lot of surplus, so it can be sufficiently supplied at the piping site.

The screw block 2 is screwed into the pipe fitting socket 1 and inserted into the socket, and is provided with a groove or a square hole as a screw locking part 4 on at least one side. The tip fitting part 5 of the screw handle 3 is fitted with the screw locking part 4, and the means for adjusting the position of the screw block 2 in the socket is, for example, by inserting a pin into a pin hole provided in the handle rod. Use this as a screw-in length stopper.

[0008]

[Function] The screw block 2 screwed into the pipe joint socket 1 acts as a blind positioner within the pipe joint socket 1. The threaded handle 3 is used to attach and detach the threaded block 2 to and from the pipe fitting socket 1 by engaging the tip fitting part 5 with the threaded locking part 4 of the threaded block 2. The block positioning adjustment means 6 determines the position of the screw block 2 in the pipe joint socket 1, and appropriately controls the attachment and detachment of the short nipple 11 to the pipe diameter to be manufactured.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a partially cutaway side view of the short nipple manufacturing tool of the present invention. The present invention comprises a pipe joint socket 1, a screw block 2 having a screw locking part 4 on at least one side which is screwed into the pipe joint socket, a tip fitting part 5 which fits into the screw lock part at the tip, and This is a short nipple manufacturing tool consisting of a screw-in handle 3 with a position adjustment means 6 for a screw-in block 2.

[0010] Here, the first member, the pipe joint socket 1, is attached to the end of the pipe to protect the threaded end of the threaded pipe, and usually a large number of sockets are used. That's what I do.

The screw-in block 2, which is the second member, is newly manufactured and prepared, and is threaded so that it screws into the socket and enters into the socket, and is screwed and locked on at least one side. A groove or a square hole is provided as part 4. Finally, the third member, the threaded handle 3, is in this case a T-shaped rod, and its tip fitting portion 5 is fitted with the threaded locking portion 4, and is used to position the threaded block 2 in the socket. Adjustment means 6 are provided. The in-socket positioning adjustment means 6 includes:
For example, pins 9 are inserted into a plurality of pin holes 8 provided in the handle rod 7 to form a screw-in length stopper.

When using the short nipple manufacturing tool constructed as described above, proceed as follows. First, a pin 9 is set in a predetermined pin hole 8 provided in the top screw driver 7 of the screw handle 3 shown in FIG. 1 in accordance with the pipe diameter of the short nipple to be manufactured. Next, the threaded block 2 is attached to the pipe joint socket 1 using the threaded handle 3 described above, and waits. Then, one side of the pipe with the required diameter is finished in a normal threaded state, a line is drawn and cut to an arbitrary length from the end of the pipe, and the cut surface is tapered to produce a semi-finished product.

[0013] At this stage, the required single-threaded pipe with a short nipple has been completed. After screwing this in by hand from the front side of the loaded pipe fitting socket 1 of the above-mentioned screwing block 2, attaching this pipe fitting socket 1 to the pipe clamping part (chuck) of a thread cutting machine, it is possible to do it in the same way as normal pipe thread cutting. A short nipple 11 can be manufactured. The short nipple 11 thus manufactured can be easily taken out using a tool such as an auto wrench 12 while the socket is chucked in a thread cutting machine as shown in FIG.

[0014]

[Effects of the Invention] As detailed above, the present invention uses pipe fitting sockets as pipe accessories that are always scattered at piping sites as the base of the device, without requiring expensive and complicated equipment. There are characteristics. It alleviates the difficulties of piping in dimensionally demanding environments, and at the same time it directly leads to the recycling and utilization of cut-off pieces of pipes of various diameters that are otherwise thrown away as waste without any use, and is relatively expensive compared to other fitting materials. In place of ready-made short nipples, the nipples can be manufactured and stockpiled inexpensively and easily during workers' spare time, and can contribute to industry in terms of resource recycling as well as improved construction efficiency.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway side view of a short nipple manufacturing tool.

FIG. 2 is a perspective view of a screw block.

FIG. 3 is a perspective view showing a removed state after manufacturing the short nipple.

[Explanation of symbols]

1 Pipe joint socket 2 Screw-in block 3. Screw-in handle 4 Screw-in locking part 5 Tip fitting part 6 Positioning adjustment means 7 Handle rod 8 Pin hole 9 pin 10 Chen 11 Short nipple 12 Auto wrench

Claims (1)

[Claims] 1. A pipe fitting socket 1, a threaded block 2 having a threaded locking part 4 on at least one side that is screwed into the pipe fitting socket, and a tip fitting part 5 which fits into the threaded locking part at the tip. and a threaded handle 3 provided with means 6 for adjusting the position of the threaded block 2.