RU1793115C - Detachable joint - Google Patents

Description

The invention relates to mechanical engineering, in particular to tubular connections

parts and can be used in light canisters, for example, sports, hunting and recreational inflatable boats.

A releasable connection of tubular parts intersecting at right angles comprising a clamp is known. The clamp is T-shaped at the long end

A through groove is made, ending with an opening the diameter of which is equal to the outer diameter of the connected pipes. An opening of the same diameter as the first and aligned with it is made at the short end of the clamp. When connected, one of the pipes mates with the holes and the other mates with the surface of the long end facing the short and bends around this surface.

However, such a connection does not create a compressive force between the pipes due to the spring of the plate enveloping the pipe, moreover, the pipes have point contact. Under alternating loads, backlash in the joint appears and progresses, which reduces its reliability.

A detachable connection of two tubular parts intersecting at right angles is also known, comprising a connecting strip with fixing means in the form of a rod connecting the mating parts in the f-shaped slot of which the heads of the bolts passing through the walls of the mating butt are installed from the ends. The connection also includes a pressure bar covering the non-abutting part

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and by means of said bolts, tightening the joined parts.

The disadvantage of this connection is the weakening of the cross section of the abutting part by the grooves for inserting the bolts. In addition, in the case of joining thin-walled parts, it is not possible to create a large pulling force between the parts due to the risk of their deformation, which does not allow the connection to be stiff. These drawbacks reduce the reliability of the connection, it is also possible to rotate the parts to be joined together, and the connection has low bearing capacity

The aim of the invention is to increase the reliability of the connection, eliminating the possibility of mutual rotation of the mating parts,

The aim of the invention is also to increase the bearing capacity of the joint by creating a tensile force along the composite tubular.

The goal is achieved in that in a detachable connection comprising sections of two tubular parts intersecting at right angles and a connecting strip with locking means; one of the tubular parts is made integral, and the other is a composite of two parts with a cylindrical element of their mating, the cylindrical mating element is located in the cavity of one of the parts of the detachable part in contact with its inner surface, the joint zone of the parts of the detachable part is located in the zone of connection of the parts , the connecting strip is made with a socket for a tubular part and is fixed by means of fixation on one of the connected parts and is located along this part, the mating element of the parts of the detachable part is made n on one of these chas- ter, with slats formed in openings in yde with two pairs of diametrically opposed spline grooves. The means for fixing the strap is made in the form of two elements at the ends of the strap on the sides different from the socket and mounted on an integral part. Each of the mating ends of the parts of the detachable part is made with. a pair of spline protrusions arranged in mutually perpendicular to each other planes. The strap is placed in the joint zone of the parts of the detachable part. This goal is also achieved by the fact that the elements of the fixing means are made in the form of two flexible clamps connected with a strap with friction elastic gaskets. Flexible clamps are installed with the covering of an integral part. The goal is achieved by the fact that the elements of the fixing means are made in the form of a flexible clamp and made respectively on the bar and integral part of the hook and end groove. Clamp mounted with coverage

integral part, the hook is located in the groove, and the end part of the integral part is made with a bevel. This goal is also achieved by the fact that the connection is equipped with a cable fixed at opposite ends

parts of a detachable tubular part and tightening them.

The absence of weakened cross-sections in the fastener assembly improves the reliability of the connection. By increasing the contact area, mutual deformation of the parts to be joined is avoided. The presence of a cable increases the bearing capacity of the joint.

Fig. 1 shows a detachable connection with parts of a tubular workpiece joined apart along its axis, general view; Fig. 2 is an embodiment of means for fixing a connecting strip with a T-shaped connection; Fig. 3 is a diagram of a detachable connection with a cable extending externally (cable fastening and tension mechanism thereof are not shown); Fig. 4 is the same with a cable running inside.

The detachable connection comprises an integral tubular part 1, and the second tubular part consists of two parts 2 and 3 and intersects the part 1 at a right angle. Part 3 of the part is provided with a cylindrical element 4, mating parts 2 and 3 in inner diameter. A connecting strip 5 is fixed along the integral tubular part 1 in the joint zone of parts 2 and 3. The strip has a socket a, the diameter of which is equal to the inner diameter of the composite tubular part. Two pairs of diametrically opposite splined recesses b are made in the socket. The means for securing the strip 5 are two flexible collars 6 connected to the strip and located on opposite sides of the socket a. The clamps 6 are connected to the strap 5 by screws 7 and are installed with friction linings 8 covering the integral part 1. At each of the mating ends, parts 2

and 3 of the detachable part, there are a pair of spline protrusions 9 and 10 located relative to each other in mutually perpendicular planes,

For a T-shaped connection, the tool for fixing the strap 5 consists of one flexible clamp 6 and a hook 11 made in the strap 5 and installed in the end groove of the integral part 1. The flexible clamp b is installed with a friction gasket 8 covering part 1. The end of part 1 is made about bevelled.

In order to create a pulling force, at the opposite ends of the parts 2 and 3 of the detachable tubular part, a pulling cable 12 is fixed, which can be located both inside and outside the joint.

The assembly of the connection is carried out as follows: pre-assemble the strip 5 with the tubular part 1

by means of clamps 6 with elastic gaskets 8, which prevent displacement. In this case, screw connections 7 are installed. A cylindrical interface element 4 is inserted into the socket a of the strip 5 until the component 3 of the detachable tubular part abuts. On the opposite side of the strip 5, a protruding part 2 is put on the protruding part of the cylindrical mating element 4. During operation, the strip 5 is not removed from the tubular part.

Claims (4)

SUMMARY OF THE INVENTION 1. A detachable connection comprising portions of two tubular parts intersecting at right angles and a connecting strip with fixing means, one of the tubular parts is made integral and the other is a composite of two parts with a cylindrical mating element, when this specified pairing element is located in the cavity of one of the parts of the detachable part in contact with its inner surface, the joint area of the parts of the detachable part is located in the zone of connection of the parts, and the seat bar is made with slots ohm; tubular part, fixed by means of fixation on one of the connected Detail and is located along this part, 30 which, in order to to increase the reliability of the connection and to exclude the possibility of mutual rotation of the mating parts, the mating element of the parts of the detachable part is made on one of these parts, the socket of the strip is made in the form of an opening with two pairs of diametrically opposite splined recesses, the means for fixing the strip are made in the form of two elements at the ends strips on different sides of the socket and mounted on an integral part, with each of the mating ends of the parts of the detachable part made with a pair of splined protrusions located GOVERNMENTAL in mutually perpendicular planes relative to each other's, and the strip is placed in the junction area of the split parts of the items. 2. The connection as claimed in Claim 1, wherein the elements of the fixation means are made in the form of two flexible clamps connected with a strap with friction elastic gaskets mounted with the span of an integral part. . 3. The connection according to claim 1, moreover, the elements of the fixing means are made in the form of a flexible clamp and made respectively on the bar and one-piece part of the hook and end groove, while the clamp is installed with the coverage of the one-piece part , the hook is located in the groove, and the end of the integral part is made with a bevel. 4. Connection pop. 1, characterized in that, in order to increase the bearing capacity of the connection by creating a tensile force, it is equipped with a cable attached to the opposite ends of the parts of the detachable tubular part and tightening them. Fi.2 A / g. 3 Editor I. Kulakova Compiled by N. Dichenko Tehred M. Morgenthal Sat az 489 Circulation VNIIIPI of the State Committee for Inventions and Discover at the USSR State Committee for Science and Technology 113035, Moscow, Zh-35, Rauska nab., 4/5 fr. 4 Proofreader L. Livrints Subscription