RU2696785C1 - High pressure bottle adapter - Google Patents

Abstract

FIELD: physics.

SUBSTANCE: on adapter housing with internal thread and sealing surfaces for consumer there installed is nut fixedly in axial direction and movable in circumferential due to balls located in annular hemispherical grooves of adapter housing and nut. On the sealing surfaces of the adapter housing, when it is attached to the neck of the cylinder, there is an annular groove for a rubber ring of round cross-section, as well as a cylindrical surface for a fluoroplastic ring of rectangular section contacting directly with aggressive medium contained in the balloon. Threaded surface of nut contacts with external thread surface of neck of cylinder, and sealing surface on adapter body contacts with inner sealed surface of neck. Balls from falling out of hemispherical grooves are fixed with locking screw, on surface of adapter housing and nut there is a zinc coating, diameter of balls 5…8 mm. On external surfaces of nut and housing of adapter there are polyhedral surfaces with number of flat faces of not less than two.

EFFECT: adapter can be used to equip high-pressure cylinders used in fire-extinguishing modules with various connection dimensions of shut-off and start devices and high consumption of media in cylinders.

4 cl, 1 dwg

Description

The invention relates to the field of engineering, specifically to adapters for equipping high-pressure cylinders used in fire extinguishing modules.

To equip high-pressure cylinders, consumers often use various kinds of adapters (adapters), since cylinder manufacturers make connecting threads with one type of sealing surface in their necks, and consumers need another with other sealing surfaces to connect their devices (http: //www.airconstations. com / products / hoses / adapter). In addition to this, the adapter, in addition to the thread, for connecting the cylinder and the sealing surfaces to the thread, must have a thread and sealing surfaces necessary for the consumer.

A known adapter for a high-pressure cylinder containing threaded and sealed surfaces for connecting fittings for controlling the operation of the cylinder, as well as threaded and sealed surfaces for connecting to the neck of the cylinder (http://poisk-ltd.com/goods/balon/specbalon_19.html).

The main disadvantage of this adapter is that the connecting dimensions of the adapter to the neck of the cylinder and the connecting dimensions for the consumer are small and this does not allow it to be used for locking and starting devices in fire extinguishing modules with a large flow rate of the medium in the cylinder.

The technical problem solved by the invention is the creation for high pressure cylinders with an external thread on the neck used in fire extinguishing modules, an adapter for locking and starting devices with large connecting dimensions and a large flow rate of the medium in the cylinder.

The problem is solved in that the threaded surface for attaching the adapter to the outer threaded surface of the neck of the container is made on a nut that is stationary in the axial direction and movable in a circumference relative to the adapter body due to balls placed in the annular hemispherical grooves of the adapter body and nuts, and the sealing surfaces in the form of an annular grooves for a rubber ring of circular cross section and a cylindrical surface for a fluoroplastic ring of rectangular cross section are placed on the outer cylindrical surface the adapter housing in contact with the inner cylindrical surface of the neck of the container.

Sealed surfaces on the adapter body in the form of an annular groove with a rubber ring in it provide a tight connection between the adapter and the neck.

The sealing surface on the adapter body in the form of a cylindrical surface with a fluoroplastic ring placed on it ensures a tight connection between the adapter and the neck of the container in the conditions of use of aggressive media in the container.

At the same time, sealed on the adapter housing are placed in a sequence that ensures, first of all, contact of the aggressive medium with the fluoroplastic ring.

The balls in the annular hemispherical grooves of the adapter housing and the nut provide a fixed fixation of the nut relative to the adapter housing in the axial direction and movable in the circumferential direction, which allows the nut to be screwed onto the outer threaded surface of the neck when the nut is rotated and kept from turning the adapter housing, compressing the fluoroplastic ring with neck of the container.

The threaded and sealed surfaces on the neck of the container are technologically advanced to manufacture.

The problem is also solved by the fact that:

- on the outer surfaces of the nut and the adapter body, polyhedral surfaces are made with the number of flat faces of at least two, which are necessary to screw the nut onto the external threaded surface of the neck of the container and to keep the adapter case from turning when using keys;

- Zinc coating is applied on the surfaces of the nut and adapter housing, which prevents electrochemical corrosion between the adapter parts and the neck of the container;

- balls have a diameter of 5 ... 8 mm, which is optimal for the proposed adapter.

The design of the adapter with its attachment to the neck of the metal composite cylinder (type 3) is shown in FIG. one.

In FIG. one:

1 - metal composite cylinder;

2 - bottle neck;

3 - adapter housing;

4 - a nut;

5 - a ball;

6 - locking screw;

7 - a rubber ring;

8 - fluoroplastic ring.

Work with the adapter as follows:

- install the rubber ring 7 in the annular groove of the housing of the adapter 3;

- install the nut 4 on the housing of the adapter 3 so that the annular hemispherical grooves on the nut 4 and the housing of the adapter 3 coincide;

- through the threaded hole in the nut 3, the required number of balls 5 is inserted into the grooves;

- after the grooves are completely filled with balls, the threaded hole is closed with a locking screw 6;

- on the sealed cylindrical surface of the housing of the adapter 3 with a slight interference fit set fluoroplastic ring 8;

- the assembled adapter is installed on the neck 2 of the cylinder 1 and turning the nut 4 on the threaded surface of the neck, while holding the adapter housing against rotation, compress the fluoroplastic ring 8 with the necessary force.

The adapter is used at NLP GasServiceComposite LLC for completing metal-composite high-pressure cylinders (type 3) used in fire extinguishing modules with connecting dimensions for M60 × 2-7G locking and starting devices; M68 × 2-7G; M80 × 3-7G.

In all cases, the design of the neck of the cylinders is the same.

The adapter has a minimum size and weight.

Claims (4)

1. The adapter for the neck of the high pressure cylinder, containing threaded and sealed surfaces for connecting fittings for controlling the operation of the cylinder, as well as threaded and sealed surfaces for connecting to the neck of the cylinder, characterized in that the threaded surface for attaching the adapter to the outer threaded surface of the neck of the cylinder is made the nut is stationary in the vertical direction and movable in the circumference relative to the adapter case due to balls placed in annular hemispherical grooves adapter housings and nuts, and sealing surfaces in the form of an annular groove for a rubber ring of circular cross-section and a cylindrical surface for a fluoroplastic ring of rectangular cross-section are placed on the outer cylindrical surface of the adapter body in contact with the inner cylindrical surface of the neck of the cylinder. 2. The adapter according to claim 1, characterized in that the balls from falling out of the hemispherical grooves are fixed with a locking screw. 3. The adapter according to claim 1, characterized in that on the outer surfaces of the nut and the adapter body there are polyhedral surfaces with at least two flat faces. 4. The adapter according to claim 1, characterized in that the diameter of the balls is 5 ... 8 mm.

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