RU1770662C - Device for securing hoses on pipe lines - Google Patents

Abstract

SUMMARY OF THE INVENTION: A screw tip contacts a loop of a flexible clamp. The nut handle is located along the axis of the pipe. The cylindrical protrusion of the nut with the roller placed on it is made with an inclination towards the tip at an angle less than the direct. At the end of the protrusion a hook is made, covered by a flexible clamp. 1 C.p. f-ls, 4 ill.

Description

The invention relates to mechanical engineering and can be used to secure flexible hoses to metal pipes using a wire clip.

A device for fixing hoses, mainly on nipples, comprising a screw with a tip in contact with a loop of a flexible clamp, and interacting with a screw, a nut with a cylindrical protrusion, a roller placed on it, located perpendicular to its axis, and a handle located opposite in this case, the roller interacts with the twisted ends of the flexible hoop.

The disadvantage of this device is the narrow technological possibilities due to the fact that it can only secure the hose with a flexible wire clamp bent to form a loop through which the free ends are passed. Such a clamp can be used at low pressures in the pipeline because in the place of the loop due to its imposition on the free end of the wire

localized non-adherence of the wire to the hose, and consequently the hose to the nipple, is formed, and at significant pressures, the working medium can violate the tightness of the connection. Higher pressures of the working medium are sustained by wire fastening made in the form of several spirals laid next to one another with twisted free ends of the wire. tightly adjacent spirals to the hose, however, the known device cannot secure such a clamp, since the handle does not allow its screw to be rotated in the plane tangent to the hose at the place of twisting. In addition, due to the location of the cylindrical protrusion perpendicular to the axis of the nut, the free ends of the wire twisted into a twist are shifted from the roller to the nut and. Due to the friction on the nut, the tension of both ends is not balanced enough, which leads to a weakening of the hose, since the main load is carried by one end of the wire.

The purpose of the invention is the expansion of technological capabilities of the device for

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due to the possibility of fixing the hoses with a wire laid in the form of several spirals.

Figure 1 shows the device, a General view when securing the hose with a wire bent to form a loop in the middle; figure 2 - a view of figure 1; fig.Z is a general view of a hose being fixed with the application of several wire spirals; figure 4 - view of E "and fi g.Z.

The device for securing the hoses consists of a screw 1, bearing on the end, rotatably mounted relative to screw 1, a tip 2, abutting in loop 3 (see Figs. 1 and 2) of the wire clamp 4. A nut 5 is located on the screw 1 equipped with a cylindrical protrusion 6, which is located in the plane of the nut passing through the axis 5 with an inclination towards the tip 2. A rotary roller 7 is mounted on the protrusion 6, covered by the free ends of the wires 8 and 9, twisted into a twist 10. The wire clamp 4 covers hose 11 dressed on nipple 12. For In this work, the nut is equipped with a handle 13 located along the axis of the pipeline in a plane perpendicular to another plane passing through the protrusion 6 and the axis of the nut 5.

In Figs. 3 and 4, the wire clamp 14 covers the hose 15 by means of two spiral turns 16 and 17. At the ends of the wire, loops 18 and 19 are formed, one of which is worn on the tip 2, and the other on the hook 20 located on the protrusion 6 of the nut 5. It is possible to place the loop 19 on the roller 7, however, in this case, the loop 19 will be significantly larger from the loop 18, which will complicate their manufacture, and installation on a rotating roller will reduce the tightening force of the clamp 14.

A hose fastener is used as follows.

A piece of wire of the required length is bent in the middle with the formation of a loop 3 (see Fig. 1 and 2), after which they cover the hose 11 and the free ends 8 and 9, passing through the loop 3, twist into a twist 10. Install the device so that the tip 2 rests on the loop 3, and the free ends 8 and 9 are put on the roller 7. Loosen the screw 1 in the nut 5, tighten the clamp 4 on the hose 11, and the latter tightly covers the nipple 12. At the same time, the branches of the clamp 4 are tensioned equally , since their ends 8 and 9 are supported by a roller 7, which, in case of occurrence on bo end greater force on the ledge pivots 6, aligning the tension, the wire, due to the inclination

the protrusion 6 with the formation of wires of a right angle, do not slide off the roller before friction with nut 5, which increases the uniformity of the tension of the wires. Upon reaching the required tightening, which can be determined by the state of twist 10, by means of screw 1, the device rotates in the plane of the perpendicular axis of nipple 12, as a result of which the ends of wires 8 and 9 are bent on loop 3, finally securing hose 11 to nipple 12. By releasing the screw 1, the device is removed from the wire clamp 4, while the twist 10 can be saved to tighten the connection during operation

5 or excess ends of wires 8 and 9 cut off. When attaching the hose by applying several turns of spirals on it (see Fig. 3 and 4), take a piece of wire of the required length and bend it

At the ends of the loops 18 and 19. Then they cover the hose 15, for example, with two turns of wire and, putting the loop 18 on the tip 2, and the loop 19 on the hook 20, also screw the screw 1 into the nut 5. After reaching the necessary

5, which can be determined by the condition of the loops 18 and 19, the device is aligned so that the end of the wires from the point of intersection is approximately the same length. In this position, turning the entire device by means of screw 1 in a plane parallel to the nipple axis in a counterclockwise direction (see Fig. 3), twist the ends of turns 16 and 17 into a twist, making half or five or one revolution of the device. If it is necessary to have a longer twist, simultaneously with the rotation of the device, it is necessary to loosen the screw 1 by unscrewing it from the nut 5. After final fixing,

0 screw 1 is unscrewed from nut 5 until it becomes possible to remove the loops 18 and 19, respectively, from the tip 2 and hook 20, the device is removed, and the ends of the wires are twisted or left with loops for

5 tighten the joints during operation, or cut off.

Claims (2)

SUMMARY OF THE INVENTION 1. A device for securing hoses to pipelines, comprising a screw with a tip in contact with a loop of a flexible clamp, a nut with a cylindrical protrusion, a roller and a handle, characterized in that, in order to expand technological capabilities and increase the quality of twisting of the clamp, the handle is located along the axis of the pipeline, and the cylindrical protrusion of the nut with the roller placed on it is made with an inclination towards the tip at an angle less than the direct. 2. The device according to claim 1. It is important that a hook is made at the end of the cylindrical protrusion of the nut, covered by a flexible clamp. $ ig. I d EEgb Type A FIG. 2 View B , 13 15 &