CS211897B1 - Flexible valve on the tube - Google Patents

Abstract

The purpose of the invention is to improve the inflation of bicycle tubes, further improve tightness, prevent air from escaping from the tube. Possibility of use in inflatable toys and balls, possibility of reliable repeated inflation. The stated purpose is achieved by a flexible insert equipped with a gladiák end at the end, which is firmly inserted into a metal housing, equipped with recesses for inserting a cover nut extension when screwed into the valve body, for this purpose equipped with a thread on the outer part, on the upper side the metal body is closed with a cover nut.

Description

BACKGROUND OF THE INVENTION The present invention relates to a flexible valve for veloduses for bicycles, motorcycles and other transport vehicles thanks to the use of tubes for wheels.

The plates known in the entities consist of a metal "thimble" into which a metal insert provided with a rubber tube is inserted at the end. In some types, a ball closure consisting of a ball loosely retained in a basket formed from a curved part of the metal liner ends is used instead of a rubber tube. The disadvantage of these fans is the frequent failure rate by damaging the rubber hose when tightening the valve body, which results in air leakage from the debt. The disadvantage of the second type | U is a loose ball, which is not pleased when the bearing surface is contaminated and thus leaks air from the tube.

These drawbacks are remedied by a flexible valve on the bicycle in which the metal body is glued or hung on the tube and into which the metal sleeve provided with the elastic element and the sleeve is pushed into the shoulder of the metal body according to the invention, the liner provided at the end with a tubing end is firmly inserted into a metal case provided with a fart. presses for insertion of the cap nut cap and threaded outer part for the possibility of screwing into the metal body closed on the top with cap nut.

The advantage of the designed flexible valve is perfect tightness. The tube is filled with a hollow needle, after being filled with air it is pulled out, thus the elastic part returns to its original position and closes the needle hole. The rubber tubing part of the flattening, the walls abut against each other and close the opening for the hollow straw, further acting by pressing on the flexible insert and thereby completely closing the flexible valve. The valve is closed by a cap nut, which at the same time serves with its upper part for unscrewing or screwing in the flexible valve. No cap nut required. When filling the ear, there is no need to screw on the valve from the flexible hose of the pump. The design of the valve may be shorter, thereby reducing material consumption for production.

The accompanying drawings show: FIG.

Fig. 2 - filling the duct by means of a hollow needle, Fig. 3. Detail of the cover nut in front view and plan view, Fig. 4 - detail of the flexible liner, Fig. 5 - detail of the metal sleeve with flexible liner.

The resilient valve consists of a resilient insert 1 fixedly mounted in a metal sleeve 3 threaded on the outside. The elastic sleeve 1 is terminated with a sleeve extension 2. The metal body 5 is firmly seated in a rubber tube 9, which is inserted into a shell 10 attached to the rim 11, at the top the metal body 5 is closed by a cover nut 4. valve. A fixing nut 0 is screwed onto the metal body 5, which holds the valve on the rim 11. A hollow needle 7 is inserted into the elastic insert 1, closed at the end and provided with openings at the ends, forming the end part of the flexible hose 8 from the pump.

The valve is assembled in such a way that the elastic insert 1 is firmly seated in the end sleeve 3. The elastic valve 1 thus assembled is screwed into the metal body 5 by means of a cap nut 4 by inserting the adapter into the groove on the metal pin 3 until the elastic part touches. The valve is closed by a cover 4, screwed onto the upper part of the metal body 5. The inner tube 9 is filled with air by means of a pump via a flexible hose 8 terminated by a hollow needle 7 which is inserted into the flexible valve after unscrewing the cover nut 4 The air flows through the holes of the hollow needle 7 onto the sleeves of the tubing extension 2, which expands and enters the inner tube 9. The resilient walls of the quadrilateral extension 2 close the side openings on the hollow needle 7 thereby ensuring that the air is not sucked back into the air pump when inflated. After the inner tube 9 is inflated to the desired pressure and the inner needle 7 is withdrawn from the flexible vehicle. The walls of the tubing extension 2 are connected to you by the pressure of the air, further pressing on the flexible insert 1, the opening of which also closes and thus prevents the escape of air from d, the ear 9. Screw the cover nut 4 onto the metal body 5.

The plunger valve can be used for inner tubes for all types of bicycles, motorcycles, as well as in the production of inflatable toys and balls.

Claims (1)

SUBJECT A flexible valve n, and a tubing in which the metal body is glued or vulcanized to the tube and into which a metal sleeve with a rubber liner and a sleeve is pushed into the metal body fitting, characterized in that the flexible liner (1) is provided with coffee the end piece (2) is firmly inserted into the metal sleeve (3j) provided with the pockets for inserting the cap nut (4) on the threaded exterior for the possibility of screwing into the metal body (5) closed by the cap nut (4).