SU1422041A1 - Apparatus for sealing hollow articles in testing for leaks - Google Patents

Abstract

This invention relates to instrumentation technology. Pel invention - improving test performance. For this, the device has a lid 7 with an abutment fixed at the end of the cylinder 5, sealed relative to the hollow rod 1 and forming together with it, the piston 6 and the wall of the hydraulic cylinder the piston cavity of the latter.

Description

iz.

1G

/five

Two stop bushings are rigidly fixed on the rod 1: the upper 8 and the lower 9, the piston b is made with an inner ring lOj designed lug designed to interact with its upper end with the sleeve 8, and the latter has an axial groove lls and sleeve 9 - the projections 12,

the grooves entering II and intended to interact with the stop of the cover 7. Fluid is supplied to the piston chamber of the hydraulic cylinder 5, the piston 6 by the protrusion 10 interacts with the sleeve 8, simultaneously releasing the sleeve 4, which moves relative to the rod 1 upwards. 3 il.

The invention relates to the control of measuring equipment and can be used for sealing polk products when tested for G-tightness with excessive pressure of the medium.

The aim of the invention is to improve the performance of the test "

FIG. L shows the device in its initial position; 5 a general view; figure 2 - the same, b, the working position; Fig, 3 section aa in Fig.1.

A device for sealing hollow articles when tested for leaktightness contains a hollow rod 1 with a shoulder 2 at the end, mounted on the rod 1 successively on the side of the flange 2, a sealing element 3, a pressure sleeve 4 and a hydraulic cylinder 5 with an annular piston 6, a lid with a stop (not marked) fixed on the torpedo (not shown) of the hydraulic cylinder 5 p compacted relative to the hollow rod 1 and forming the schut together with it, the piston 6 and the wall (not indicated) of the hydraulic cylinder 5, the piston chamber (not marked) of the latter, the upper 8 and the lower By the 9 th thrust bushings rigidly fixed on the hollow rod 1. The piston 6 is made with an inner annular protrusion 10 designed to interact with its upper end (not marked) with the upper thrust sleeve 85 and the lower thrust with the push sleeve 4, with this last end - non-c-axial and grooves 11 j and the lower thrust sleeve 9 - with projections 1 2 entering into the grooves 11 of the pressure sleeve 4 and designed to interact with the stop of the cover 7. Pressing

0

0

;; five

0

0

the sleeve 4 is spring-loaded with respect to the FPG of the rod 1 by the spring 13. Hydro-1 cylinder 5 is fixed on the frame 14.

The device works as follows.

The test article 15 is installed and fixed coaxially with the device. Fluid is supplied to the supra piston cavity (not indicated) of the hydraulic cylinder 5. The annular piston 6 moves downward (according to the drawing). With its protrusion 0 it presses the floating sleeve 4 and the latter also moves downward, which carries the rod 1, with which it interacts through the sealing lip. element 3 and spring IBs together with sealing element 3, which enters product 15, and stop sleeves 8 and 9. Lower stop sleeve 9: then rests with its protrusions 12 against the stop of the crank 7, and the pressure sleeve 4 continues its movement together with the piston 6 , with its grooves 11 along the protrusions 12 of the stop sleeve 9, and, overcoming the resistance of the spring 13, compresses the sealing element 3 sandwiched between the pressure sleeve 4 and the collar 2.. of the hollow rod 1, the product 15 is sealed.

After conducting the tests, the fluid is supplied to the podporshnevoy cavity guide, cylinder 5, while its: piston 6 with its protrusion 10 interacts with the upper thrust sleeve 8, at the same time, releasing the pressure sleeve 4, which under the action of the spring 13 moves relative to the hollow rod 1 upwards drawing). The sealing element 3 returns to its original state, not preventing the device from being removed from the product 15, and the piston 6, continuing to move up (according to the drawing) together with the hollow rod 1, retracts the last of the product 15.

The effectiveness of the device consists in testing the test performance by combining the insertion and extraction processes of the sealing element into the product with the compression-expansion of this sealing element, while the sequence of operations is required automatically without manual labor.

Claims (1)

Formula invented shadows A device for sealing hollow articles when tested for tightness, containing a hollow rod with a collar at the end and mounted on the rod successively on the side of the flange The pressure sleeve and the hydraulic cylinder with an annular piston, characterized in that, in order to increase the test performance, it is equipped with a lid with a seal attached to the end of the hydraulic cylinder, which is sealed relative to the hollow rod and forms together with it, the piston and the wall of the hydraulic cylinder podpnevnevuyu cavity last, and two resistant bushings - upper and lower, rigidly fixed to. a hollow rod, and the piston is made with an inner annular protrusion designed to interact with its upper end with the upper thrust hub of a hollow rod and the lower with a pushing hub, the latter being made with axial grooves, and the lower thrust hub of a hollow rod with lugs, included in these grooves and designed to interact with the stop of the cylinder head. Fig.z Compiled by Y. Lysenko Editor A. Shandor Tehred.Morgental Proofreader M. Demchik Order 4418/39 Circulation 847 VIIIPI State Committee of the USSR for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Subscription