SU806972A1 - Apparatus for connecting pipes - Google Patents

Description

(54) DEVICE FOR CONNECTING PIPES

The invention relates to pipe fittings and, can be used when joining pipes with a high degree of reliability of connection, while possessing quick installation and dismantling. The closest in technical terms to the present invention is a device for connecting pipes, containing butt pipe thickenings, a sleeve with apertures forming a locking element of petals, sealing element, while the ends of the petals are provided with protrusions interacting with the butt edges of thickening { . The disadvantages of the known device are no reliability of the joint, since with considerable axial loading, the locking element can be bent and the joint undocked, and; the inconvenience of dismantling the joint, the tag as for its production requires additional special tools and a). The purpose of the invention is to increase the reliability; This is achieved by the fact that each pipe is equipped with a sleeve movably located on it and spring-loaded in the direction of its flange, on the bushes on the side of the flanges there are internal blind grooves equal to the width of the coupling petals, and with a diameter equal to the outer diameter of the coupling, and on the outer surface - wedge, bevels by the number of lobes. FIG. I presents the proposed device, a longitudinal section; FIG. 2 Section A-A in FIG. I; in fig. 3 - section B-B in Fig. 2. A device for connecting pipes I and 2 contains; flanges 3 and 4. A coupling 5 with a slot 1 and 6 forming petals 7. The pipes are equipped with sleeves 8 and 9 - spring-loaded. Springs 10 and II flanges 3 and 4 are compressed into the side of the sleeves 8 and 9 on the side of the flanges .3 and 4 there are internal blind grooves 12 with a width equal to the shafine of the petals 7 of the coupling 5 - in a diameter equal to the outer diameter of the coupling 5. On the outer surface of the sleeves 8 and 9 are made of longitudinal wedge bevels 13, interacting with the shoulders of 14 petals 7 of the coupling 5 during demolition. Between the bulges 3 and 4, a sealing element 15 is inserted. The assembly of joint is produced as follows. Preliminarily, a coupling 5, which slides the conical surfaces of the flanges 14 along the tapered surface of the flange 3, is put on one of the ends of the connecting pipe 1 to the grip of the latter, while the sleeve 8 rests against the lip 14 of the petals 7 of the coupling 5. Coupling 5 is put on the pipe I until the petals 7 are pressed into the bottom of the grooves 12. in this case they seize the flange 3- After that, insert the seal 15 and put the coupling 5 on the flange 4 of the pipe 2 until the petals 7 lugs into the bottom of the grooves 12 of the sleeve 9. at the same time, they will start up their 14 shoulders ayut tubes I and 2 to each other, with szlaestvl thus reliable seal. Disassembly of the joint is carried out by following the phase. Sleeves 8 and 9 are shifted through pipes I and 2, compressing the springs O and II, then unfold to align the wedge 2 4 braids 13 with the petals 7 of the coupling 5. After that the sleeves 8 and 9 are released. Under the action of the force of the springs 10 11 on the flange 14 of the petals 7, the bending force R on the petals 7 is generated, as a result of which the pipes I and 2. are freed from the grippers by the petals 7 and are taken out freely. Claims Apparatus for connecting pipes c. flanges at the ends, containing a sleeve with longitudinal lobes having internal end conical flanges, interacting with pipe flanges, characterized in that, in order to increase the reliability of the connection, each pipe is provided with a sleeve positioned on the spring-loaded flanges, and on the sleeves from the side of the flanges, blind grooves are made with a width equal to the width of the coupling diameter, and on the outer surface - wedge bevels by the number of coupling petals. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 348810, cl. F 16L 21 / O6, 1970.

 A ft

/N.X

A-A

 rotated j / 4 7

Y /

eight

/ 3

FIG. 2

Fig.Z

Claims (1)

Claim Device for connecting pipes with. flanges at the ends, containing a sleeve with longitudinal flanges having internal end conical collars interacting with pipe flanges, distinguish it with a pin that, in order to increase the reliability of the connection, each pipe is equipped with a sleeve that is movably located on its flanges, and on the bushings on the side of the flanges there are blind grooves with a width equal to the width of the coupling petals and a diameter equal to the diameter of the coupling, and on the outer surface - wedge bevels according to the number of coupling petals.