SU1537427A1 - Arrangement for cutting thread at tube ends - Google Patents

Abstract

The invention relates to a plumbing tool, in particular to devices for cutting threads at the ends of pipes. The purpose of the invention is to simplify the design and improve the quality of the thread due to the simplicity of the elements of the fixation mechanism and more accurate fixation of the device relative to the outer diameter of the pipe being processed. The device contains a locking mechanism, which consists of a sleeve with a cone 1 with an external thread 2 and a cone 3 with an internal thread connected by a screw 4, and two split rings 5 mounted on cones, between which is located the sleeve 6 with internal cones. At the inner end 7 of the external thread 2 of the cone 1, an elastic element 8 is installed, the outer diameter of which is smaller than the internal diameter of the thread 2 of the cone 1. This thread is associated with the thread of the cutting tool 9 fixed in the housing 10 with a handle for rotating 11 and a through hole 12, the diameter of which is greater than the outer diameter of the cut thread 13 on the pipe 14. 1 Il.

Description

The invention relates to a plumbing tool, in particular to devices for cutting threads on pipes.

The purpose of the invention is to simplify the design and improve the quality of the thread due to the simplicity of the elements of the fixation mechanism and 6 ° 7 precise 7x device's relative to the right diameter of the pipe being processed. -% | -

The drawing shows a mustache / for the

a cone 1, until the spring ring is fully depressed by compressing the elastic element 8.

The elastic element 8 serves to set the end 7 of the thread 2 at a sufficient distance from the end of the pipe and, accordingly, to allow the movement of the cone 1 in the case when the spring ring 5 is unlocked on the cone 3.

cutting, threading on the ends of the pipe, the common device is mounted in the inner diameter of the view., the pipe being cut and the thread 2 the device contains a sleeve that

 consists of a cone 1 with an external thread 2,

a cone 3 with internal thread, connected with a screw 4, and two spring times15

is aligned coaxially with the axis of the pipe with high precision. Then the handle 11 rotates the body 10 with the cutting tool 9, which is moved axially along the thread 2. The cutting tool 9, moving along the thread 2, cuts into the end of the pipe and begins to cut the thread 13. After cutting one or two turns, the cutting tool begins permere rings 5 mounted on cones, between which is located the spacer sleeve 6 with internal conical surfaces. At the inner end 7 of the external thread 2 of the cone 1, an elastic element 8 is installed, which can be pulled along these turns and cuts, made in the form of a wavy or rubber thread of the required length. After the washer, and has an outer diameter smaller than the inner diameter of the thread 2 of the cone 1. This thread is matched with the thread of the cutting

tool 9, which is fixed in box-. .,,

10 with a handle 11 for rotating 25 a locking mechanism out of the tube. Then, by means of a through- and through hole 12, the diameter is twisted by rotating

cutting the entire thread unscrew the screw 4 a few turns, easily hit the head in the axial direction, freeing the ring 5 from the cone 3, and take out

pogo larger than the outer diameter of the cut thread 13 on the pipe 14.

tool together with the body.

Claims (2)

Invention Formula The device works as follows. 30 When cutting threads 13 on the pipe 14, the fixing mechanism is inserted into the pipe so that the internal seam of the pipe passes through the recesses of the split rings 5 until it stops by the elastic element 8 into the pipe end. Formula of invention A device for threading the ends of the pipes, comprising a housing with a tool and a fixing mechanism, made in the form of a sleeve with an external thread and a clamping bolt with a cone, characterized by a screw 4, are tightened between themselves, in order to simplify the cones 1 and 3, which unclench the spring-struts and improve the quality of threads, split rings 5, opened by a sleeve; the device is equipped with two split rings Coy 6. In this case, the surfaces, elastic element and complementarity of the inner diameter of the cut labor pipe with a sleeve with onicheskimi apertures ry not processed and has irregularities, one wall of which is designed moat split ring 5 will never be 40 for cooperating with a clamping cone Finally simultaneously decompressed. If the bolt and the other with a return cone, ring 5, which is located on cone 1, is firstly wedged, then with further screwing in, screw 4 will be rewound on the sleeve, while the split rings are placed on the cone of the clamping bolt and the return cone of the sleeve cone 3 until it clears the second. the opportunity to interact with the ends of the ring is 5. If first the final bushing and the elastic element but unclenches the ring 5, which is on the cone 3, then with further screwing the screw 4 will move mounted on the sleeve in front of the external thread and has an outer diameter smaller than the internal diameter of the thread. a cone 1, until the spring ring is fully depressed by compressing the elastic element 8. The elastic element 8 serves to set the end 7 of the thread 2 at a sufficient distance from the end of the pipe and, accordingly, to allow the movement of the cone 1 in the case when the spring ring 5 is unlocked on the cone 3.  the device is attached to the inside diameter of the pipe being cut and the thread 2 the device is attached to the inside diameter of the pipe being cut and the thread 2 is is aligned coaxially with the axis of the pipe with high precision. Then the handle 11 rotates the body 10 with a cutting tool 9, which is moved in the axial direction along the thread 2. The cutting tool 9, moving along the thread 2, cuts into the end of the pipe and begins to cut the thread 13. After cutting one or two turns, the cutting tool begins to move along these turns and cuts the remaining thread of the required length. After Slipping over these coils and cuts the remaining threads of the required length. After . .,, fixation mechanism of the pipe. Then, the cutting cutting the entire thread unscrew the screw 4 a few turns, easily hit the head in the axial direction, freeing the ring 5 from the cone 3, and take out tool together with the body. Invention Formula A device for threading at the ends of pipes, comprising a housing with a tool and a fixing mechanism, made in the form of a sleeve with an external thread and a clamping bolt with a cone, characterized in that, in order to simplify the design and improve the quality of the thread, the device is equipped with two split rings, an elastic element and an additional sleeve with conical holes, the walls of one of which are designed to interact with the cone of the clamping bolt, and the other with the return cone, made on the sleeve, with this, the split rings are placed on the cone of the clamping bolt and the return cone of the sleeve with the possibility of interaction with the ends of the additional sleeve, and the elastic element mounted on the sleeve in front of the external thread and has an outer diameter smaller than the internal diameter of the thread.