RU2369800C2 - Pipe mounting and removing fitting - Google Patents

Abstract

FIELD: construction industry.

SUBSTANCE: invention refers to pipe connections. Pipe mounting and removing fitting consists of not less than one housing, a seal, a washer and a spring washer. Fitting can be of a special shape, seal and washer are made from the material which provides change of their shape during compression. Spring washer is made preferably from stainless steel. Pipe is fixed in the housing by means of a threaded nut. In order to connect the pipe with soft walls, a sleeve made from rigid material is installed in the pipe.

EFFECT: invention improves the connection reliability.

9 cl, 11 dwg

Description

Areas of technology

The present invention considers the connection or disconnection of pipes in plumbing (especially metal, plastic, glass). The described compound can be used for water, gas and oil pipes, it is also especially effective in responding to emergencies.

Technical level

Known pipe joints with a jumper, in which a thread must first be applied to the pipe ends to be joined. The disadvantage of such pipe connections is the need for preliminary preparation of pipe connections, i.e. threading.

GB 2140113 A is an open fitting, consisting of a body, a plastic ring, a sealing element and a washer. GB 2117072 A - open fitting, consisting of a housing, a sealing element and a washer. GB 2129080 A is an open fitting, consisting of a housing, sealing elements and a washer.

SUMMARY OF THE INVENTION

The purpose of the invention is to offer a fitting that allows you to connect or disconnect pipes of metal, plastic, glass. An additional objective of the invention is to offer a fitting that allows you to connect and disconnect pipes, the diameter of which differs from the standard diameter. The quality and accuracy of the products of different manufacturers vary, as a result of which the diameters of the pipes are somewhat different. Known solutions do not provide the ability to connect soft pipes. Another object of the present invention is to provide a fitting with which soft pipes can be connected and disconnected. Another objective of the present invention is to provide a fitting, the manufacture of which is less energy intensive and cheaper than fittings known at the technical level. One of the preferred methods for performing the invented fitting to achieve this is constructed with a plastic housing.

The problem is solved by a fitting that contains at least one body, seals, washers and spring washers. The fitting may be carried out in a special form to allow the connection or disconnection of one or more pipes located at an angle relative to each other. The seal and washer are made of material which, when compressed, provides a change in their shape. The pipe is fixed in the body with a threaded nut, the outer side of which can be made in the form of a nut.

Brief Description of the Drawings

Figure 1 shows the body of the fitting, a straight view;

Figure 2 is a section aa of Fig. one;

figure 3 - fitting nut, straight view;

figure 4 is a section aa of figure 3;

figure 5 - mounting sleeve of one of the preferred embodiments of the fitting;

Fig.6 - the upper sleeve, or the so-called long screw, one of the preferred embodiments of the fitting;

Fig.7 - the elbow of one of the preferred embodiments of the fitting;

on Fig - another of the preferred embodiments of the fitting for connecting a soft pipe;

figure 9 is a cross section of the seal fitting;

figure 10 - washer fitting, top view;

figure 11 is a section aa of figure 11;

on Fig - spring washer fitting, top view;

Fig.13 is a section aa of Fig.12.

DETAILED DESCRIPTION OF THE INVENTION

In the various drawings, the same elements are denoted by the same reference numbers.

The fitting shown in figures 1 and 2, contains mainly a cylindrical body 1, at the receiving end of the pipe which is a thread 2. Different sections of the inner surface of the housing 1 have different diameters. Section 3 in direct contact with thread 2 has a cylindrical shape, followed by section 4 of a conical shape, section 5 again of a cylindrical shape, the diameter of which is actually equal to the outer diameter of the connected pipe. To fix the position of the connected pipe on the body there is a stage 6.

The nut 7 shown in FIGS. 3 and 4 has an external thread 8 for fixing the nut by the housing 1. The external surface of the nut 7 in contact with the thread is made in the form of a hexagon 9. The hole 10 of the nut 7 has a conical shape, so that d1 is larger than d2, which made it possible to increase the loosening of the external diameters of the mounted pipes, which, in turn, makes it possible to interconnect pipes of various manufacturers, the internal diameters of which may vary slightly.

5 is an embodiment of the invention in which two identical fitting bodies 1 are connected to each other, forming a mounting sleeve 11. A step 6, which is located in the center of the sleeve 11, fixes the position of the connected pipes.

6 is an embodiment of the invention in which two identical fitting bodies 1 are interconnected without a step 6. As a result, an upper coupling, or a long screw, 12 is obtained.

7 is an embodiment of the invention in which two identical fitting bodies 1 are connected to each other at an angle of 90 °. The result is a knee 13.

On Fig - invented fitting with a fixed pipe 14 in it. The specific embodiment shown in the drawing is intended for connecting a soft pipe. Inside the soft pipe 14 is a sleeve 15, which prevents the deformation of the soft pipe 14 when squeezing the fitting. The seal of the pipe connection on the fitting is the seal 16. The washer 17 is designed to uniformly deform the seal 16. Between the washer 17 and the nut 7 is a spring washer 18.

The seal 16 has the shape of a pipe (see Fig. 9), both ends of which ends are faceted 19. On one side of the washer 17 there is a groove 20 (see Figs. 10 and 11), the cross section of which coincides with the cross section of the end of the seal 16, which ensures uniform deformation of the seal 16 with the washer 17 and helps to avoid lateral displacement of the washer 17 toward the seal 16. The spring washer 18 has teeth 21 separated by U-shape clearances 22. When screwing the nut 7 into the housing 1 of the fitting, the angle α of the teeth 21 of the spring washer 18 decreases, as a result of which the teeth come into contact with the pipe 14, which prevents the pipe 14 from leaving the fitting.

To install the pipe, the attached end of the pipe is pushed into the housing 1 of the completed fitting, so that the pipe passes through the hole 10 of the nut 7, then through the hole of the spring washer 18, through the hole of the washer 17, through the seal hole 16 to the stage 6 in the case. When tightening the nut 7 in the housing 1, the spring washer 18 moves in the direction of the washer 17, and the washer 17, in turn, moves in the direction of the seal 16, as a result of which the seal 16 is deformed so that the outer surface of the seal is firmly pressed against the section m 3 and 4 of the housing 1 and the inner sealing surface tightly pressed against the outer surface of the connecting pipe, thus ensuring the necessary fitting density. When using the upper sleeve (long screw) 12, it is possible to advance the outer surface of the pipe being mounted into the fitting until the pipe is fixed, because there is no step 6 in the upper sleeve body.

The preferred embodiment of the invention for connecting two pipes to each other has been described above, however, the invention also covers pipe connections that allow one or more two pipes to be connected to the invention, respectively.

Claims (9)

1. A fitting for mounting and dismounting pipes, consisting of a housing (1), a nut (7), a seal (16), a washer (17) and a spring washer (18), characterized in that the section of the housing (4) in the housing (1 ) in contact with the seal (16) has a conical shape, the spring washer (18) is preferably made of stainless steel. 2. A fitting for mounting and dismounting pipes according to claim 1, characterized in that the inner hole of the nut (7) has a conical shape. 3. A fitting for installing and removing pipes according to claim 1, characterized in that the wall thickness of the seal (7) is less than the height of the seal. 4. A fitting for mounting and dismounting pipes according to claim 1, characterized in that both edges of both ends of the seal (7) are faceted (19). 5. A fitting for installing and removing pipes according to claim 1, characterized in that on one side of the washer (17) there is an annular groove (20), the cross section of which coincides with the cross section of the faceted edges (19) of the seal (7). 6. A fitting for mounting and dismounting pipes according to claim 1, characterized in that the housing (1) is made of plastic. 7. A fitting for installing and disassembling pipes according to claim 1, characterized in that the seal (7) and the washer (17) are made of a deformable material. 8. The fitting for mounting and dismounting pipes according to claim 1, characterized in that the connected pipes are selected from the group to which metal, plastic and glass pipes belong. 9. A fitting for installing and disassembling pipes according to claim 1, characterized in that a sleeve of rigid material (15) is placed in a plastic pipe with soft walls, the inner diameter of which is actually equal to the outer diameter of the pipe.

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