Tensioning device for power cable installation

Abstract

The utility model relates to the technical field of cable tensioning, in particular to a tensioning device for power cable installation. Comprising a cross rod, two U-shaped supports are slidably installed at the top of the cross rod, first tooth blocks are fixedly installed on the inner walls of the bottoms of the U-shaped supports, second tooth blocks located above the first tooth blocks are slidably installed in the U-shaped supports, and the same cable penetrates through the two U-shaped supports; the first tooth block and the second tooth block are both in close contact with the cable, a first lead screw is rotatably installed at the top of the second tooth block, a first threaded through hole penetrates through the inner wall of the top of the U-shaped support, and the first lead screw penetrates through the first threaded through hole in a threaded mode. Through the simple clamping and pulling mechanism, the cable can be conveniently and quickly tensioned, and the tensioning device can be effectively prevented from moving on the cable, so that the tensioning device can be effectively prevented from falling off from the cable, the stability is improved, and great convenience is brought to the tensioning work of the cable.

Description

Technical Field

[0001] The utility model relates to the technical field of cable tensioning, in particular to a tensioning device for installing a power cable. Background Art

[0002] With the continuous development of economy and the accelerated process of industrialization, the market demand for electricity is increasing, and a large number of power projects are put into construction. During the construction process of power projects, cables need to be laid, and cables often need to be tensioned during installation and laying. The prior art discloses a tensioning device for power cable installation with the authorization announcement number CN220553802U, which includes a lower half shell, the lower half shell is a hollow cavity with an upper end opening, a plurality of fixing nuts are fixedly arranged on the edge of the bottom wall of the lower half shell, the upper half shell is hinged at the upper end of the upper side wall of the lower half shell, a gravity tensioning mechanism is arranged in the upper half shell, the gravity tensioning mechanism is connected with a cable, and a lock is fixedly arranged on the outer surface of the lower side wall of the upper half shell and the lower half shell. The utility model can automatically adjust the tension according to the phenomenon of thermal expansion and contraction of the adaptive cable, can quickly detect whether the cable reaches the required tension during installation, improves the installation efficiency, can monitor the tension in long-term operation and find problems in time, and avoid greater losses and safety risks to the cable.

[0003] However, it was found during use that the above design was easy to move on the cable, there was a risk of the cable falling off the tensioning wheel, and the stability was limited, which brought a lot of trouble to the cable tensioning work. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide a tensioning device for power cable installation, which is convenient for rapid tensioning of the cable, can effectively prevent the tensioning device from moving on the cable, can effectively prevent the tensioning device from falling off the cable, improves stability, brings great convenience to the cable tensioning work, and solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the utility model adopts the following technical solution: a tensioning device for power cable installation, comprising a cross bar, two U-shaped brackets are slidably installed on the top of the cross bar, a first tooth block is fixedly installed on the bottom inner wall of the U-shaped bracket, a second tooth block located above the first tooth block is slidably installed in the U-shaped bracket, the same cable passes through the two U-shaped brackets, the first tooth block and the second tooth block are in close contact with the cable, a first screw rod is rotatably installed on the top of the second tooth block, a first threaded through hole passes through the top inner wall of the U-shaped bracket, the first screw rod thread passes through the first threaded through hole, two rectangular through grooves are passed through the cross bar, a slider is slidably passed through the rectangular through groove, the slider is fixed to the bottom of the corresponding U-shaped bracket, and the same bidirectional screw rod is threaded through the two sliders.

[0006] To facilitate tensioning of cable bends:

[0007] As a further improvement of the above technical solution: the cross bar also includes a square tube, the square tube is fixed on the top of the cross bar, a sliding rod is slidably installed in the square tube, the top of the sliding rod extends to the outside of the square tube and is fixedly installed with a U-shaped clamp, the cable passes through the U-shaped clamp, a sliding groove is opened on one side of the sliding rod, a rack is fixedly installed in the sliding groove, a rectangular cover is fixed and connected to one side of the square tube, a third tooth block is slidably installed in the rectangular cover, one side of the third tooth block extends into the sliding groove and meshes with the rack, a second screw rod is threadedly installed on the rectangular cover, and one end of the second screw rod is rotatably connected to the third tooth block.

[0008] The beneficial effect of this improvement is that, through such an arrangement, it is convenient to tension the curved portion of the cable, which can effectively prevent the cable from becoming loose.

[0009] In order to facilitate the support and limit of the bidirectional screw:

[0010] As a further improvement of the above technical solution: a first through hole is penetrated on an inner wall of one side of the rectangular through slot, a second through hole is penetrated between the two rectangular through slots, and the bidirectional screw rod rotates through the second through hole and the two first through holes.

[0011] The beneficial effect of this improvement is that by providing the first through hole and the second through hole, it is convenient to support and limit the bidirectional screw rod.

[0012] To prevent the slider from shaking:

[0013] As a further improvement of the above technical solution: two limit plates are slidably installed at the bottom of the cross bar, and the limit plates are fixed at the bottom of the corresponding sliding blocks.

[0014] The beneficial effect of this improvement is that by setting the limiting plate, it is convenient to limit the slider and prevent the slider from shaking.

[0015] In order to facilitate the rotation connection between the first screw rod and the second gear block:

[0016] As a further improvement of the above technical solution: a first circular groove is provided on the top of the second tooth block, and the bottom end of the first screw rod is rotatably installed in the first circular groove.

[0017] The beneficial effect of this improvement is that by providing the first circular groove, the first screw rod and the second gear block are easily rotatably connected.

[0018] In order to facilitate the transverse movement of the second screw on the rectangular cover:

[0019] As a further improvement of the above technical solution: a second threaded through hole is penetrated on an inner wall of one side of the rectangular cover, and the second screw thread penetrates through the second threaded through hole.

[0020] The beneficial effect of this improvement is that by providing the second threaded through hole, the second screw rod can be easily moved horizontally on the rectangular cover.

[0021] To facilitate the installation and fixation of the rectangular cover:

[0022] As a further improvement of the above technical solution: a rectangular through hole is penetrated through the inner wall of one side of the square tube, and the rectangular cover is fixedly installed in the rectangular through hole.

[0023] The beneficial effect of this improvement is that by providing the rectangular through hole, it is convenient to install and fix the rectangular cover.

[0024] The beneficial effects of the utility model are: through a simple clamping and pulling mechanism, it is convenient to quickly tension the cable, and can effectively prevent the tensioning device from moving on the cable, thereby effectively preventing the tensioning device from falling off the cable, thereby improving stability and bringing great convenience to the cable tensioning work. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0026] Figure 2 For this utility model Figure 1 A schematic diagram of the enlarged structure of part A;

[0027] Figure 3 It is a schematic diagram of the three-dimensional assembly structure of the U-shaped bracket, the first gear block and the second gear block in the utility model;

[0028] Figure 4 For this utility model Figure 1 A schematic diagram of the enlarged structure of part B;

[0029] Figure 5It is a schematic diagram of the side view assembly structure of the slide bar, rack and U-shaped clamp in the utility model.

[0030] In the figure: 1, cross bar; 2, U-shaped bracket; 3, first tooth block; 4, second tooth block; 5, cable; 6, first screw rod; 7, first threaded through hole; 8, rectangular through groove; 9, slider; 10, bidirectional screw rod; 11, square tube; 12, slide rod; 13, U-shaped clamp; 14, slide groove; 15, rack; 16, rectangular cover; 17, third tooth block; 18, second screw rod. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.

[0032] like Figure 1-5As shown, a tensioning device for power cable installation comprises a cross bar 1, two U-shaped brackets 2 are slidably installed on the top of the cross bar 1, a first tooth block 3 is fixedly installed on the bottom inner wall of the U-shaped bracket 2, a second tooth block 4 located above the first tooth block 3 is slidably installed in the U-shaped bracket 2, a same cable 5 is passed through the two U-shaped brackets 2, the first tooth block 3 and the second tooth block 4 are both in close contact with the cable 5, a first screw rod 6 is rotatably installed on the top of the second tooth block 4, a first threaded through hole 7 is passed through the top inner wall of the U-shaped bracket 2, the first screw rod 6 threadedly passes through the first threaded through hole 7, two rectangular through grooves 8 are passed through the cross bar 1, a slider 9 is slidably passed through the rectangular through groove 8, and the slider 9 is fixed at the corresponding At the bottom of the U-shaped bracket 2, the two sliders 9 are threaded with the same bidirectional screw rod 10, which is convenient for quickly tensioning the cable 5 through a simple clamping and pulling mechanism, and can effectively prevent the tensioning device from moving on the cable 5, thereby effectively preventing the tensioning device from falling off the cable 5, thereby improving the stability and bringing great convenience to the cable tensioning work. The cross bar 1 also includes a square tube 11, which is fixed to the top of the cross bar 1, and a slide bar 12 is slidably installed in the square tube 11. The top of the slide bar 12 extends to the outside of the square tube 11 and is fixedly installed with a U-shaped clamp 13. The cable 5 passes through the U-shaped clamp 13, and a slide groove 14 is opened on one side of the slide bar 12, and a rack 15 is fixedly installed in the slide groove 14. A rectangular cover 16 is fixed on one side of the square tube 11 and is connected to the rectangular cover 16. A third tooth block 17 is slidably installed in the rectangular cover 16. One side of the third tooth block 17 extends into the slide groove 14 and meshes with the rack 15. A second screw rod 18 is threadedly installed on the rectangular cover 16. One end of the second screw rod 18 is rotatably connected to the third tooth block 17. Through this arrangement, it is convenient to tighten the bending part of the cable, which can effectively prevent the cable from loosening. A first through hole is penetrated on the inner wall of one side of the rectangular through groove 8, and a second through hole is penetrated between the two rectangular through grooves 8. The bidirectional screw rod 10 rotates through the second through hole and the two first through holes. By setting the first through hole and the second through hole, it is convenient to support and limit the bidirectional screw rod 10. The cross bar 1 Two limit plates are slidably installed at the bottom, and the limit plates are fixed to the bottom of the corresponding sliders 9. By setting the limit plates, it is convenient to limit the slider 9 to prevent the slider 9 from shaking. A first circular groove is opened on the top of the second tooth block 4, and the bottom end of the first screw rod 6 is rotatably installed in the first circular groove. By setting the first circular groove, it is convenient to rotate the first screw rod 6 and the second tooth block 4. A second threaded through hole is penetrated on the inner wall of one side of the rectangular cover 16, and the second screw rod 18 is threaded through the second threaded through hole. By setting the second threaded through hole, it is convenient for the second screw rod 18 to move horizontally on the rectangular cover 16. A rectangular through hole is penetrated on the inner wall of one side of the square tube 11, and the rectangular cover 16 is fixedly installed in the rectangular through hole. By setting the rectangular through hole,This makes it easier to install and fix the rectangular cover 16.

[0033] The working principle of the utility model is as follows: when in use, the cable 5 is first passed through the two U-shaped brackets 2, so that the cable 5 is placed on the top of the two first tooth blocks 3, and the cable 5 is placed in the U-shaped clamp 13 at the same time, and then the two first screw rods 6 are rotated, so that the second tooth block 4 is driven to slide downward in the corresponding U-shaped bracket 2, so that the cable 5 is clamped by the first tooth block 3 and the second tooth block 4, and then the bidirectional screw rod 10 is rotated, so that the two sliders 9 are driven to slide in the corresponding rectangular through grooves 8 and approach each other, and the two U-shaped brackets 2 are driven to slide on the top of the cross bar 1 and approach each other, so that the two ends of the cable 5 are tightened. Through such an arrangement, it is convenient to quickly tension the cable 5, and it can effectively prevent the tensioning device from being in a state of tension. The U-shaped clamp 13 is then pulled to tighten the cable 5 between the two U-shaped brackets 2, and the U-shaped clamp 13 drives the slide bar 12 to slide out of the square tube 11 until the slide bar 12 stops moving, and then the second screw rod 18 is rotated, and the second screw rod 18 is rotated into the rectangular cover 16, so that the third tooth block 17 is driven to slide out of the rectangular cover 16 and enter the slide groove 14 to engage with the rack 15, so that the slide bar 12 is fixed, and the U-shaped clamp 13 is fixed. Through such an arrangement, it is convenient to tighten the bending part of the cable, which can effectively prevent the cable from loosening.

[0034] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0035] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principle of the utility model, they can make several improvements, embellishments or changes, and can also combine the above technical features in an appropriate manner; these improvements, embellishments, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.

Claims

1. A tensioning device for installing a power cable, comprising a crossbar (1), characterized in that: Two U-shaped brackets (2) are slidably mounted on the top of the cross bar (1), a first tooth block (3) is fixedly mounted on the bottom inner wall of the U-shaped bracket (2), a second tooth block (4) located above the first tooth block (3) is slidably mounted in the U-shaped bracket (2), a same cable (5) is passed through the two U-shaped brackets (2), both the first tooth block (3) and the second tooth block (4) are in close contact with the cable (5), a first screw rod (6) is rotatably mounted on the top of the second tooth block (4), a first threaded through hole (7) is passed through the top inner wall of the U-shaped bracket (2), the first screw rod (6) is threadedly passed through the first threaded through hole (7), two rectangular through grooves (8) are passed through the cross bar (1), a slider (9) is slidably passed through the rectangular through groove (8), the slider (9) is fixed to the bottom of the corresponding U-shaped bracket (2), and a same bidirectional screw rod (10) is threadedly passed through the two sliders (9).

2. A tensioning device for power cable installation according to claim 1, characterized in that: The cross bar (1) further comprises a square tube (11), wherein the square tube (11) is fixed on the top of the cross bar (1), a slide bar (12) is slidably mounted in the square tube (11), the top end of the slide bar (12) extends outside the square tube (11) and is fixedly mounted with a U-shaped clamp (13), the cable (5) passes through the U-shaped clamp (13), a slide groove (14) is provided on one side of the slide bar (12), a rack (15) is fixedly mounted in the slide groove (14), a rectangular cover (16) is fixed on one side of the square tube (11) and is connected thereto, a third tooth block (17) is slidably mounted in the rectangular cover (16), one side of the third tooth block (17) extends into the slide groove (14) and meshes with the rack (15), a second screw rod (18) is threadedly mounted on the rectangular cover (16), one end of the second screw rod (18) is rotatably connected to the third tooth block (17).

3. A tensioning device for power cable installation according to claim 1, characterized in that: A first through hole is penetrated on the inner wall of one side of the rectangular through slot (8), a second through hole is penetrated between the two rectangular through slots (8), and the bidirectional screw rod (10) rotates through the second through hole and the two first through holes.

4. A tensioning device for power cable installation according to claim 1, characterized in that: Two limit plates are slidably mounted on the bottom of the crossbar (1), and the limit plates are fixed on the bottoms of corresponding sliders (9).

5. A tensioning device for power cable installation according to claim 1, characterized in that: A first circular groove is formed at the top of the second tooth block (4), and the bottom end of the first screw rod (6) is rotatably mounted in the first circular groove.

6. A tensioning device for power cable installation according to claim 2, characterized in that: A second threaded through hole is penetrated on one inner wall of the rectangular cover (16), and the second screw rod (18) threadably penetrates the second threaded through hole.

7. A tensioning device for power cable installation according to claim 2, characterized in that: A rectangular through hole is penetrated through the inner wall of one side of the square tube (11), and the rectangular cover (16) is fixedly installed in the rectangular through hole.

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