Tensioning device for power cable installation

Abstract

The utility model provides a tensioning device for power cable installation, which relates to the technical field of cable installation and comprises a fixed base and a lifting type pressing tensioning mechanism, the lifting type pressing tensioning mechanism is arranged on the upper side of the fixed base, and a rotary threaded rod penetrates through an external fixed rod and is in threaded connection with the external fixed rod. In the process that a rotary threaded rod is driven by a forward and reverse rotation motor to rotate, an external fixed rod and a fixed arc-shaped module fixed on the inner side can descend, so that a cable lapped on the surfaces of cable limiting modules on the two sides is pressed, the tension of the cable is increased, the cable can be tensioned, and the tensioning efficiency of the cable is improved. In the process that the cable is pressed, tensioned and transmitted, a rubber gasket adheres to the contact face of the fixed arc-shaped module and the cable, the surface of the fixed arc-shaped module is arranged in an arc shape, and in the process that the fixed arc-shaped module makes contact with the cable, the cable can be better supported and fixed, and the situation that the cable is uneven in stress in the pressing and tensioning process is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable installation technical field especially relates to a tensioner for power cable installation. BACKGROUND

[0002] With the acceleration of urbanization process and the continuous development of power system, the application scenarios of power cable are increasingly diversified. In cities, cables need to be laid in complex underground pipe networks, which may include sewage pipes, water pipes, communication pipelines and various facilities. The cable laying path is tortuous and the space is limited. For example, when laying cables in urban centers, the cables need to pass through narrow streets, building basements and other areas. At the same time, in some large industrial enterprises or energy bases, the cables may need to be laid overhead over a long distance or laid underwater, such as cross-sea cables and cross-river cables. These complex application scenarios put higher requirements on the quality and precision of cable laying, and the tension control of the cable is one of the key factors.

[0003] During the process of generating friction force by long-term contact with the cable, due to the fact that the cable may not be completely uniformly stressed or the slight swing of the cable during operation, uneven wear of the surface of the friction wheel will occur, which not only shortens the service life of the friction wheel, but also causes unstable friction force, thereby causing fluctuations in the tension of the cable. For example, when one side of the friction wheel is severely worn, the friction force on that side decreases, and the cable may relax on that side, while the other side still maintains a high tension, causing uneven stress on the cable.

[0004] Therefore, we provide a tensioner for power cable installation to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a tensioner for power cable installation to solve the problems raised in the background.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a tensioner for power cable installation, comprising a fixed base and a lifting type pressing tensioning mechanism, the upper side of the fixed base is provided with a lifting type pressing tensioning mechanism;

[0007] The lifting type pressing tensioning mechanism comprises a cable limiting assembly, a lifting type tensioning assembly, a driving lifting assembly and a fixed buffer assembly, the upper side of the fixed base is fixedly connected with the cable limiting assembly, one side of the cable limiting assembly is provided with the lifting type tensioning assembly, one side of the lifting type tensioning assembly is fixedly connected with the driving lifting assembly, and the lower side of the driving lifting assembly is movably connected with the fixed buffer assembly.

[0008] Preferably, the cable limiting assembly includes a first fixed support plate, a rotating shaft and a cable limiting module. The upper side of the fixed base is fixedly connected to the first fixed support plate, the inner side of the first fixed support plate is rotatably connected to the rotating shaft, and the surface of the rotating shaft is fixedly connected to the cable limiting module.

[0009] Preferably, the lifting tensioning assembly includes a second fixed support plate, a lifting slot, a fixed support shaft, a fixed arc module and an external fixed rod. A second fixed support plate is provided on one side of the first fixed support plate, a lifting slot is provided on the surface of the second fixed support plate, a fixed support shaft is clamped on the inner side of the lifting slot, a fixed arc module is fixedly connected to the surface of the fixed support shaft, and an external fixed rod is fixedly connected to the outer side of the fixed support shaft.

[0010] Preferably, the driving lifting assembly includes a fixed support plate, a rotating threaded rod and a forward and reverse motor. One side of the second fixed support plate is fixedly connected to the fixed support plate, the inner side of the fixed support plate is rotatably connected to the rotating threaded rod, and the lower side of the rotating threaded rod is fixedly connected to the forward and reverse motor.

[0011] Preferably, the fixed buffer assembly includes a fixed support rod, a buffer rod and a buffer spring, the upper end of the fixed base is fixedly connected to the fixed support rod, the upper side of the fixed support rod is movably connected to the buffer rod, and the surface of the buffer rod is sleeved with a buffer spring.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. Through the setting of the lifting and pressing tensioning mechanism, when in use, the rotating threaded rod passes through the external fixed rod and is threadedly connected to it. When the rotating threaded rod is driven to rotate by the forward and reverse motor, the external fixed rod and the fixed arc module fixed on the inside can be lowered, thereby pressing the cables resting on the surfaces of the cable limit modules on both sides, thereby increasing the tension and enabling the cables to be tensioned. During the cable compression and tensioning transmission process, the contact surface between the fixed arc module and the cable is adhered with a rubber gasket, and the surface of the fixed arc module is arranged in an arc shape. In the process of contact with the cable, the cable can be better supported and fixed to prevent uneven force during the compression and tensioning process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the overall appearance of the utility model on the right side;

[0016] Figure 3 For the utility model Figure 1An enlarged structural schematic view at A of figure 1;

[0017] Figure label: 1, fixed base; 2, lifting type pressing tensioning mechanism; 21, cable limiting assembly; 211, first fixed support plate; 212, rotating rotating shaft; 213, cable limiting module; 22, lifting type tensioning assembly; 221, second fixed support plate; 222, lifting groove; 223, fixed support shaft; 224, fixed arc module; 225, externally connected fixed rod; 23, driving lifting assembly; 231, fixed support plate; 232, rotating threaded rod; 233, forward and reverse motor; 24, fixed buffer assembly; 241, fixed support rod; 242, buffer rod; 243, buffer spring. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0019] Please refer to Figures 1-3 The utility model provides a technical scheme: a tensioning device for power cable installation, which comprises a fixed base 1 and a lifting type pressing tensioning mechanism 2, and the upper side of the fixed base 1 is provided with the lifting type pressing tensioning mechanism 2.

[0020] The lifting type pressing tensioning mechanism 2 comprises a cable limiting assembly 21, a lifting type tensioning assembly 22, a driving lifting assembly 23 and a fixed buffer assembly 24, the upper side of the fixed base 1 is fixedly connected with the cable limiting assembly 21, one side of the cable limiting assembly 21 is provided with the lifting type tensioning assembly 22, one side of the lifting type tensioning assembly 22 is fixedly connected with the driving lifting assembly 23, and the lower side of the driving lifting assembly 23 is movably connected with the fixed buffer assembly 24.

[0021] Further, the cable limiting assembly 21 comprises a first fixed support plate 211, a rotating rotating shaft 212 and a cable limiting module 213, the upper side of the fixed base 1 is fixedly connected with the first fixed support plate 211, the inner side of the first fixed support plate 211 is rotatably connected with the rotating rotating shaft 212, and the surface of the rotating rotating shaft 212 is fixedly connected with the cable limiting module 213.

[0022] Further, the lifting type tensioning assembly 22 comprises a second fixed support plate 221, a lifting groove 222, a fixed support shaft 223, a fixed arc-shaped module 224 and an external fixed rod 225, one side of the first fixed support plate 211 is provided with the second fixed support plate 221, the surface of the second fixed support plate 221 is provided with the lifting groove 222, the inner side of the lifting groove 222 is connected with the fixed support shaft 223, the surface of the fixed support shaft 223 is fixedly connected with the fixed arc-shaped module 224, and the outer side of the fixed support shaft 223 is fixedly connected with the external fixed rod 225, in use, the contact surface of the fixed arc-shaped module 224 is adhered with a rubber gasket, and the surface of the fixed arc-shaped module 224 is arranged in an arc shape, which can better support and fix the cable and prevent uneven stress during tensioning.

[0023] Further, the driving lifting assembly 23 comprises a fixed support plate 231, a rotating threaded rod 232 and a forward and reverse motor 233, one side of the second fixed support plate 221 is fixedly connected with the fixed support plate 231, the inner side of the fixed support plate 231 is rotatably connected with the rotating threaded rod 232, and the lower side of the rotating threaded rod 232 is fixedly connected with the forward and reverse motor 233, in use, the rotating threaded rod 232 penetrates through the external fixed rod 225 and is threadedly connected therewith, and in the rotating process of the rotating threaded rod 232 driven by the forward and reverse motor 233, the external fixed rod 225 and the fixed arc-shaped module 224 fixedly connected to the inner side can be lowered to press the cable on the surface of the cable limiting module 213 on both sides, so that the tension of the cable is increased and the cable can be tensioned.

[0024] Further, the fixed buffering assembly 24 comprises a fixed support rod 241, a buffering rod 242 and a buffering spring 243, the upper end of the fixed base 1 is fixedly connected with the fixed support rod 241, the upper side of the fixed support rod 241 is movably connected with the buffering rod 242, and the surface of the buffering rod 242 is sleeved with the buffering spring 243, by arranging the fixed buffering assembly 24, the buffering rod 242 and the buffering spring 243 can buffer and offset the pressure generated in the process of cable tensioning.

[0025] Working principle: first, install a kind of power cable installation tensioner to specified use position, when using, the cable is placed on the surface of the rotatable cable limiting module 213 on both sides for conveying, and the cable limiting module 213 is also arc-shaped, can be closely attached to the cable transmission operation, the rotating threaded rod 232 penetrates the external fixed rod 225, and is connected with its threaded connection, in the rotating threaded rod 232 is driven to rotate by the forward and reverse motor 233, the external fixed rod 225 and the fixed arc-shaped module 224 fixed on the inner side can be lowered, so as to press the cable on the surface of the cable limiting module 213 on both sides, so that the tension of the cable is larger, so that the cable can be tensioned, by setting the fixed buffer assembly 24, in the process of cable tensioning, the buffer rod 242 and the buffer spring 243 can buffer and offset the pressure generated in the process of cable tensioning transmission, in this way, the use process of a kind of power cable installation tensioner is completed.

[0026] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of the present application being defined by the appended claims and their equivalents.

Claims

1. A tensioning device for power cable installation, comprising a fixed base (1) and a lifting pressing tensioning mechanism (2), characterized in that: The upper side of the fixed base (1) is provided with a lifting type pressing tensioning mechanism (2); The lifting type pressing tensioning mechanism (2) comprises a cable limiting assembly (21), a lifting type tensioning assembly (22), a driving lifting assembly (23) and a fixed buffering assembly (24), the upper side of the fixed base (1) is fixedly connected with the cable limiting assembly (21), one side of the cable limiting assembly (21) is provided with the lifting type tensioning assembly (22), one side of the lifting type tensioning assembly (22) is fixedly connected with the driving lifting assembly (23), and the lower side of the driving lifting assembly (23) is movably connected with the fixed buffering assembly (24).

2. A tensioning device for power cable installation according to claim 1, characterized in that The cable limiting assembly (21) comprises a first fixed supporting plate (211), a rotating rotating shaft (212) and a cable limiting module (213), the upper side of the fixed base (1) is fixedly connected with the first fixed supporting plate (211), the inner side of the first fixed supporting plate (211) is rotatably connected with the rotating rotating shaft (212), and the surface of the rotating rotating shaft (212) is fixedly connected with the cable limiting module (213).

3. A tensioning device for power cable installation according to claim 2, characterised in that The lifting type tensioning assembly (22) comprises a second fixed supporting plate (221), a lifting groove (222), a fixed supporting shaft (223), a fixed arc-shaped module (224) and an externally-attached fixed rod (225), one side of the first fixed supporting plate (211) is provided with the second fixed supporting plate (221), the surface of the second fixed supporting plate (221) is provided with the lifting groove (222), the inner side of the lifting groove (222) is clamped with the fixed supporting shaft (223), the surface of the fixed supporting shaft (223) is fixedly connected with the fixed arc-shaped module (224), and the outer side of the fixed supporting shaft (223) is fixedly connected with the externally-attached fixed rod (225).

4. A tensioning device for power cable installation according to claim 3, characterised in that The driving lifting assembly (23) comprises a fixed supporting plate (231), a rotating threaded rod (232) and a forward-reverse motor (233), one side of the second fixed supporting plate (221) is fixedly connected with the fixed supporting plate (231), the inner side of the fixed supporting plate (231) is rotatably connected with the rotating threaded rod (232), and the lower side of the rotating threaded rod (232) is fixedly connected with the forward-reverse motor (233).

5. A tensioning device for power cable installation according to claim 1, characterized in that The fixed buffering assembly (24) comprises a fixed supporting rod (241), a buffering rod (242) and a buffering spring (243), the upper end of the fixed base (1) is fixedly connected with the fixed supporting rod (241), the upper side of the fixed supporting rod (241) is movably connected with the buffering rod (242), and the surface of the buffering rod (242) is sleeved with the buffering spring (243).

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