RU2659448C1 - Cable fastening belt - Google Patents

Abstract

FIELD: drilling of soil or rock.

SUBSTANCE: invention relates to drilling technology, namely, means for securing an electrical cable to drill rods and pipes. Belt for fastening the cable contains a metal frame and a metal tape connected to the frame by its one end. Frame 1 is a rod system with rigid connection of the rods and comprises two longitudinal rods and three transverse rods. Longitudinal bars are oriented along the tape and are curved to form a concave and convex sides of the frame. Transverse rods are oriented across the ribbon and are made in the form of parallel straight segments. Third transverse rod is located between the first and second transverse rods. Tape is connected at one end to the frame by embracing a third transverse rod to form a loop around this rod so that a force is exerted on the side of the tape on the first transverse rod in the direction of the concave side of the frame during use of the belt.

EFFECT: increase the reliability of cable fixing and simplify the design.

1 cl, 5 dwg

Description

The technical field to which the utility model relates.

The utility model relates to drilling equipment, and in particular to means for attaching an electric cable to drill rods or pipes.

State of the art

A clamping device is known for fastening long products, mainly a cable, including a connecting element and a metal tape, the connecting element is made in the form of a flat rectangular frame, one end of the metal tape is fixed by welding to one of the short sides of the flat frame, and the other end of the metal tape is made with the possibility of wrapping around the second loose short side of the flat frame, while the device is equipped with a latch made in the form of a narrow metal strip, fixed on the tape so that each bent end of the metal strip is made in the range of 0.20-0.25 of the width of the metal tape (Patent RU No. 146422 U1, M. CL E21B17 / 00, publ. 10.10.2014. Bull. No. 28).

Signs of a known pressing device that coincide with the features of the claimed utility model are the presence of a connecting element and a metal tape, in the execution of the connecting element in the form of a frame, in the attachment of one end of the metal tape to one of the short sides of the frame.

The reason that prevents obtaining a technical result in a known pressing device, which is provided by the claimed utility model, is that the frame is made flat, and the indicated attachment is made by welding.

The closest analogue (prototype) is a clamping device for fastening long products, mainly a cable, including a connecting element and a metal tape, while the connecting element is made in the form of a flat rectangular frame, one end of the metal tape is fixed by welding to one of the short sides of the flat frame and the other end of the metal tape is made with the possibility of wrapping around the second loose short side of the flat frame and holding to the pressed object, flat I frame is made thicker metal strip, internal edges and corners are rounded flat frame (Patent RU №160284 U1, M.kl. E21B17 / 00, publ. 10.03.2016. Bul. №7).

Signs of a known pressing device that coincide with the features of the claimed utility model are the presence of a connecting element and a metal tape, in the execution of the connecting element in the form of a frame, in the attachment of one end of the metal tape to one of the short sides of the frame.

The reason that prevents obtaining a technical result in a known pressing device, which is provided by the claimed utility model, is that the frame is made flat, and the indicated attachment is made by welding.

The implementation of the frame of a flat shape reduces the area of the frame to the cable when it is mounted on the pipe, since the flat shape does not correspond to approximately the circular shape of the cross section of the cable. This leads to a decrease in the reliability of fastening the cable to the pipe. In addition, the connection of the tape with the frame by welding complicates the manufacturing technology of the clamping device (belt for attaching the cable), imposes high strength requirements for this welded joint, since in the process of attaching the cable to the pipe and further operation of the cable, this welded joint is subjected to significant force aimed at breaking said welded joint.

The technical problem to which the claimed utility model is directed is the need to increase the reliability of cable fastening, simplify the design and manufacturing technology of the belt for cable fastening.

Utility Model Disclosure

The technical result, which mediates the solution of this technical problem, is to give the frame a cylindrical surface with convex and concave sides and with two windows. At the same time, the presence of a concave side in the frame provides a more consistent frame with the round cross-sectional shape of the cable, to which the frame adjoins with its concave side during operation, and two windows provide the ability to connect the tape to the frame without the direct use of welding, but preserving the bond strength characteristic and even superior welding strength, by increasing the number of bends of the tape. This simplifies the design of the belt, simplifies the technology of its manufacture, increases the strength of the connection of the tape with the frame, increases the reliability of fastening the cable to the pipe using this belt.

The technical result is achieved in that the cable fastening belt comprises a metal frame and a metal tape connected at its one end to the specified frame, which contains two longitudinal rods oriented along the tape, as well as the first, second and third transverse rods oriented across the tape and made in the form of parallel straight line segments, while the first and second transverse rods are rigidly connected with their ends to the corresponding ends of the longitudinal rods, and the third transverse rod is located between said first and second transverse rods parallel to them and their ends, it is rigidly connected to longitudinal rods made curved to form the convex and concave sides of the frame, the tape being connected at one end to the frame by covering the third transverse rod to form a loop around this rod so which makes it possible to force the side of the tape on the first transverse rod in the direction of the concave side of the frame during use of the belt.

The technical result is also achieved by the fact that the tape at one end is connected to the frame by also covering the first transverse rod with the formation of an S-shaped loop around the third and first transverse rods.

New features of the technical solution according to the claimed utility model are the presence of a third transverse rod at the frame and the connection of the tape at one end with the frame, as described above.

Brief Description of the Drawings

Figure 1 separately shows a metal frame (front view);

figure 2 is a view aa in figure 1;

figure 3 schematically shows the first variant of connecting the tape at one end with the frame by covering the third transverse rod with the formation of a loop around this rod, characterized by the entry of the tape on the third transverse rod to form the specified loop from the concave side of the frame;

figure 4 schematically shows a second variant of connecting the tape at one end with the frame by covering the third transverse rod with the formation of a loop around this rod, characterized by the entry of the tape on the third transverse rod to form the specified loop from the convex side of the frame;

figure 5 schematically shows a third variant of connecting the tape at one end with a frame, characterized by the entry of the tape on the third transverse rod to form the specified loop from the convex side of the frame, as well as the presence of additional tape coverage of the first transverse rod with the formation of an S-shaped loop around the third and first transverse rods.

Utility Model Implementation

The cable fastening belt comprises a metal frame 1 (connecting element, buckle, FIGS. 1, 2) and a metal tape 2 (FIGS. 3, 4, 5) connected to the frame by one end 3 (the other end is free, in the figures not shown).

Frame 1 is a rod system with a rigid connection of the rods and contains two longitudinal rods 4 and 5 and three transverse rods - the first 6 and second 7 (extreme transverse rods), as well as the third 8 (middle transverse rod). The longitudinal rods 4 and 5 are oriented along the tape 2 and made curved (for example, arched) with the formation of a concave 9 and convex 10 sides of the frame 1. The first 6, second 7 and third 8 transverse rods are oriented across the tape 2 and are made in the form of parallel straight line segments. The first 6 and second 7 transverse rods (extreme transverse rods) are rigidly connected with their ends to the respective ends of the longitudinal rods 4 and 5, and the third transverse rod 8 is located between the first and second transverse rods parallel to them and their ends are rigidly connected to the longitudinal rods 4 and 5. The presence of the third transverse rod 8 determines the presence in the frame 1 of two windows 11 and 12 (through windows, transverse holes). The first window 11 is formed by the first 6 and third 8 transverse rods, as well as the corresponding sections of the longitudinal rods 4 and 5. The second window 12 is formed by the second 7 and third 8 transverse rods, as well as the corresponding sections of the longitudinal rods 4 and 5.

The tape 2 with one of its ends 3 is connected to the frame 1 by covering the third (middle) transverse rod 8 with the formation of a loop 13 around this rod so that it is possible to force from the side of the tape 2 on the first transverse rod 6 in the direction of the concave side 9 of the frame 1 in the process of using the belt (figure 3, 4, 5). In this case, three variants of such a connection are possible.

In the first embodiment of the compound in question (Fig. 3), the tape is laid on the first transverse rod 6 from the convex side 10 of the frame 1, passed through the window 11 to the concave side 9 of the frame 1, envelops the third transverse rod 8 with the exit through the window 12 to the convex side 10 of the frame 1 and bent in the direction of the first transverse rod 6 with the formation of a loop 13. The end 3 of the tape 2 is superimposed on the tape 2 in the region of the first transverse rod 6.

The second variant of the compound under consideration (Fig. 4) is in a certain sense mirror symmetric with respect to the first variant considered above. In the second embodiment, the tape 2 is first laid on the third transverse rod 8 from the convex side 10 of the frame 1, passed through the window 12 to the concave side 9 of the frame 1 and then goes around the third transverse rod 8, thereby forming a loop 13. Then the tape 2 through the window 11 comes out on the convex side 10 of the frame 1 and laid on the first transverse rod 6 from the convex side 10 of the frame 1. The end 3 of the tape 2 is located between the tape 2 and the first transverse rod 6 of the frame 1 parallel to the tape 2, as a result of which the end 3 is clamped during operation of the belt between tape 2 and rod 6, which gives the connection of this option additional strength relative to the first option.

The third variant of the compound under consideration (Fig. 5) is a further improvement of the second variant and differs from it in that the end 3 of the tape 2 covers the transverse rod 6, thereby forming an additional loop 14, so that as a result the two loops 13 and 14 together form a single S -shaped loop around the third 8 and the first 6 transverse rods. Such a loop has more bends of the tape 2, which increases the strength of the considered connection.

The use of the belt is as follows.

The cable is placed along the pipe (not shown in the figures). In the place where you want to attach the cable to the pipe, frame 1 is laid on the cable with its concave side 9 so that the transverse rods 6 and 7 of the frame are located along the cable. Then the pipe 2 is wrapped around the pipe, while the opposite (free) end of the tape 2 is led into the window 12 of the frame 1, wrapped around the second transverse rod 7 of the frame 1, and with the help of a special key, the tension of the tape 2 is carried out. the force of pressing the cable to the pipe, as well as the radial force of pressing the first transverse rod 6 to the pipe, and in the variants shown in FIGS. 4 and 5, the specified radial force also acts on the end 3 of the tape 2, further enhancing the connection of the tape with the frame. As for the key, it consists of a handle of circular cross section and a working part of a rectangular section with a tapering end, while in the working part there are grooves made at an angle relative to the longitudinal axis and with the possibility of capturing the free end of a metal tape (key not shown).

Claims (2)

1. A belt for securing a cable, comprising a metal frame and a metal tape connected at one end to said frame, which comprises two longitudinal rods oriented along the tape, and also first and second transverse rods oriented across the tape, wherein said transverse rods are made in the form of parallel straight lines and their ends are rigidly connected to the corresponding ends of the longitudinal rods, characterized in that the frame contains a third transverse rod, which is made in the form of a cut and a straight line, located between the first and second transverse rods parallel to them and its ends, is rigidly connected to longitudinal rods made curved to form the convex and concave sides of the frame, while the tape is connected at one end to the frame by covering the third transverse rod to form a loop around this rod so that it is possible force from the side of the tape on the first transverse rod in the direction of the concave side of the frame during use of the belt. 2. The belt according to claim 1, characterized in that the tape at one end is connected to the frame by also covering the first transverse rod to form an S-shaped loop around the third and first transverse rods.

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