RU2079034C1 - Clamp - Google Patents

Abstract

FIELD: mechanical engineering. SUBSTANCE: clamp has a wire yoke provided with a double loop. The double loop embraces a pin with radial openings. The ends of the yoke pass through the openings. EFFECT: enhanced reliability. 2 cl, 7 dwg

Description

 The invention relates to devices for attaching hoses to rigid elements and can be used in hydraulic and pneumatic systems.

A known clamp for securing a flexible hose to a rigid pipe, containing wire clamps and a tightening device / see A.S. USSR N 1323815, MKI F 16 L 33/02, 1985 /
The disadvantage of this clamp is the complexity of manufacturing a protracted device.

 Also known is a clip for securing a hose to a rigid pipe, comprising a wire clamp and a screw assembly of a tightening device / cm. A.S. USSR N 1518612, MKI F 16 L 33/04, 1988 g.

 A disadvantage of the known clamp is the complexity of the design and operation. In addition, the perpendicular arrangement of the screw of the tightening device relative to the connected parts increases the dimensions of the node.

 The objective of the invention is to simplify the design and ease of use of the clamp.

 The necessary technical result is achieved by the fact that the clamp is made with a loop covering a lingering device (in the form of a finger, a rod, a cotter pin, etc.) with radial holes for skipping the ends (end) of the clamp and working out (cuts, holes, ear, edges and etc.), interacting with the turning tool, the ends of the holes in the tightening device for the ends of the clamp can have hemispherical chamfers and are made with recesses or beads. In addition, the clamp can be made with a double loop, on the bend of which a spacer sleeve is installed.

 In FIG. 1 shows a clamp with an elastic tube and a rigid pipe connected to it: in FIG. 2 same side view; in FIG. 3 double loop clamp, axonometry; in FIG. 4 single loop clamp, axonometry; in FIG. 5 - lingering device in the form of a finger with a pipe; in FIG. 6 lingering device in the form of a finger with a recess; in FIG. 7, section AA in FIG. 5.

 The clamp contains a rigid pipe 1 (see Fig. 1 and 2) connected to an elastic tube 2, crimped by a wire clamp 3 with a loop 4, covering a tightening device in the form of a finger 5 with radial holes 6 for passing the ends 7 of the clamp. To interact with the rotation tool, slots 8 and / or holes 9 and / or faces 10 can be made on the finger, a tetrahedron, etc., is made in the drawing. The ends of the holes 6 in the finger 5 are made with hemispherical chamfers 11 (see Fig. 7), and to prevent the loops 4 from moving on the finger 5, a collar 12 (see Fig. 4) or a recess 13 (see Fig. 6) is made. The clamp 3 can be made with a single loop 4 (see Fig. 4), and with a double loop 4 (see Fig. 2 and 3). When performing the clamp 3 with a double loop on its bend can be installed sleeve 14 (see Fig. 2).

 The assembly of the clamp and its operation is as follows.

 On a straight section of the wire, a single loop 4 (see Fig. 4) or a double loop 4 (see Fig. 3) is made according to the size of the protracted device (finger, rod, cotter pin, etc.). The end of the wire at a single loop 4 (see FIG. 4) can be twisted or welded, and a spacer sleeve 14 can be installed on the fold of the double loop (see FIG. 2).

 An elastic tube 2 is put on a rigid pipe 1, a loop 4 (an example of a clamp with a single loop) is put on the finger 5 (see Fig. 5) and the wire of the clamp 3 is twice wrapped around the tube 2, then the end 7 of the clamp is inserted into the hole 6 (see Fig. 5, 6 and 7).

 After preloading the clamp wire, the protruding end 7 bends counterclockwise on the finger 5 (see Fig. 1). Then, using an accessible tool (a screwdriver for the slots 8, a collar for the holes 9 or a key for the edges 10), finger 5 is turned clockwise (see Fig. 1), the clamp 3 is reduced in diameter and securely clamps the elastic hose 2 on the rigid pipe 1 .

 A double loop clamp is tightened in the same way. A double loop 4 is put on the finger 5 (see Fig. 2), the ends of the wire of the clamp 3 are wrapped around the tube 2 in one or two turns (depending on the stiffness of the wire), then the ends 7 are inserted into the holes 6 of the finger 5 and sticking out after the preload the ends 7 are bent around the finger 5 counterclockwise (see Fig. 1). The tool rotates the finger 5 clockwise and the clamp is tightened. For a double-loop clamp, rotation holes 9 can be made in the middle of pin 5 (see Fig. 2).

 The implementation of the wire clamp with a loop to cover the drawer simplifies the manufacture of the clamp, the tightening device consists of one part (finger, rod, cotter pin, etc.), easy to manufacture and convenient for turning with a simple tool: a screwdriver, screwdriver, key, etc. The holes in the tightening device through which the ends of the clamp wire are passed having convex hemispherical bevels at the ends prevent sharp bending of the clamp wire and its destruction and allow the same clamp to produce several tightening cycles of elastic tubes on a rigid pipe.

 The presence on the long finger of a recess or shoulder allows you to use a wire clamp with a single loop, which also simplifies the manufacture of the clamp and reduces the consumption of wire.

 The execution of the clamp with a double loop, at the bend of which a spacer sleeve can be installed, allows you to reliably compress the parts to be joined in two girths, thereby improving the tightness of the connection.

Claims (2)

 1. A clip for attaching an elastic hose to a rigid nozzle, consisting of a wire clip with a double loop, covering a long finger with radial holes in which the ends of the clamp are missing, characterized in that the loop of the clamp is located between its ends.  2. The clamp according to claim 1, characterized in that each branch of the clamp double covers the elastic hose.

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