Tensioning device for power cable installation

Abstract

The utility model belongs to the technical field of power cable installation, and particularly relates to a tensioning device for power cable installation, which comprises a first shell and a second shell, and is characterized in that the first shell is detachably connected with the second shell; the inner side wall of the first shell and the inner side wall of the second shell are in transmission connection with two sets of first rotating wheels and a set of second rotating wheels, and the two sets of first rotating wheels are located above the second rotating wheels. Threading holes corresponding to the first rotating wheel are formed in the first shell and the second shell; sliding grooves are formed in the first shell and the second shell, sliding blocks are connected into the sliding grooves in a sliding mode, and second rotating wheels are arranged on the sliding blocks; the first shell is provided with a guide rod matched with the sliding block, and the second shell is rotationally connected with an adjusting screw rod in threaded connection with the sliding block.

Description

Technical Field

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

[0002] With the rapid development of the electric power industry, power cables, as the key medium for transmitting electric energy, have a direct impact on the stability and safety of the entire power system due to their installation quality and operating status. During the installation of power cables, it is particularly important to perform proper tensioning adjustments in order to ensure the normal operation of the cables and extend their service life. Cables can be divided into transmission cables, distribution cables, control cables, etc. according to their uses. The tensioning requirements of each type of cable are also different, so the requirements for tensioning devices are different;

[0003] Usually, when installing cables, the cables are first laid to the designated location, and then a predetermined tension is applied to the cables through a special tensioning device to ensure that the cables will not become loose during operation, which may lead to mechanical performance degradation or electrical instability. During this process, the operator needs to make adjustments based on experience and visual judgment to achieve the ideal tension;

[0004] Therefore, the utility model designs a tensioning device for power cable installation to solve the technical problems existing in the prior art. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a tensioning device for power cable installation, which solves the above-mentioned technical problems.

[0006] The solution adopted by the utility model is: a tensioning device for installing a power cable, comprising a first shell and a second shell, characterized in that:

[0007] The first shell and the second shell are detachably connected, and the inner side walls of the first shell and the second shell are transmission-connected with two groups of first rotating wheels and one group of second rotating wheels, and the two groups of first rotating wheels are located above the second rotating wheels;

[0008] The first shell and the second shell are provided with threading holes corresponding to the first rotating wheel;

[0009] The first shell and the second shell are both provided with a sliding groove, a sliding block is slidably connected in the sliding groove, and a second rotating wheel is provided on the sliding block;

[0010] The first shell is provided with a guide rod matched with the sliding block, and the second shell is rotatably connected with an adjusting screw threadedly connected with the sliding block.

[0011] Preferably, two groups of guide blocks cooperating with the worm gear are threadedly connected to the device body, and guide tubes are provided on both groups of guide blocks, one group of guide blocks is located outside the device body, and the other group of device bodies is located inside the device body.

[0012] Preferably, a spring groove is provided on the sliding block, an auxiliary plate is slidably connected in the spring groove, the second rotating wheel is rotatably connected to the auxiliary plate, and an array of compensation springs are arranged between the auxiliary plate and the spring groove.

[0013] Preferably, the adjusting screw is provided with an adjusting sleeve, and the adjusting sleeve is provided with anti-slip patterns.

[0014] Preferably, the first shell and the second shell are both provided with dustproof shells corresponding to the guide rod and the adjusting screw.

[0015] Preferably, the first shell and the second shell are provided by a transparent plate.

[0016] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is one of the three-dimensional view angles of the present utility model.

[0018] Figure 2 It is one of the perspectives of the stereoscopic cross-sectional view of the present utility model.

[0019] Figure 3 This is the second perspective of the stereoscopic cross-sectional view of the present utility model.

[0020] Figure 4 This is the third perspective of the stereoscopic cross-sectional view of the present invention.

[0021] Figure 5 This is the fourth perspective of the stereoscopic cross-sectional view of the present invention.

[0022] Figure numerals: 1. first shell; 2. second shell; 3. first rotating wheel; 4. second rotating wheel; 5. threading hole; 6. sliding groove; 7. sliding block; 8. guide rod; 9. adjusting screw; 10. spring groove; 11. auxiliary plate; 12. compensation spring; 13. adjusting sleeve; 14. dustproof cover. DETAILED DESCRIPTION

[0023] The above and other technical contents, features and functions of the present invention are described in detail below with reference to the attached Figure 1-5 The detailed description of the embodiments will clearly show that the structural contents mentioned in the following embodiments are all based on the drawings in the specification.

[0024] Various exemplary embodiments of the present utility model will be described below with reference to the accompanying drawings.

[0025] Embodiment 1, a tensioning device for installing a power cable, comprising a first housing 1 and a second housing 2, characterized in that:

[0026] The first shell 1 and the second shell 2 are detachably connected, and the inner side walls of the first shell 1 and the second shell 2 are transmission-connected with two groups of first rotating wheels 3 and one group of second rotating wheels 4, and the two groups of first rotating wheels 3 are located above the second rotating wheels 4;

[0027] The first shell 1 and the second shell 2 are provided with threading holes 5 corresponding to the first rotating wheel 3;

[0028] The first shell 1 and the second shell 2 are both provided with a sliding groove 6, a sliding block 7 is slidably connected in the sliding groove 6, and a second rotating wheel 4 is provided on the sliding block 7;

[0029] The first housing 1 is provided with a guide rod 8 that cooperates with the sliding block 7, and the second housing 2 is rotatably connected with an adjusting screw 9 that is threadedly connected with the sliding block 7;

[0030] The adjusting screw 9 is provided with an adjusting sleeve 13, and the adjusting sleeve 13 is provided with anti-slip grooves;

[0031] The first housing 1 and the second housing 2 are both provided with dustproof covers 14 corresponding to the guide rod 8 and the adjusting screw 9 .

[0032] When in use, the cable is passed through the threading hole 5 at one end through one set of first rotating wheels 3, through the second rotating wheels 4 at the bottom, and then through another set of rotating wheels and out from the threading hole 5 at the other end;

[0033] When the tightness of the cable needs to be adjusted, the adjusting screw 9 is rotated, and the sliding block 7 moves downward along the sliding groove 6. Since the second rotating wheel 4 is rotatably arranged on the sliding block 7, the movement of the sliding block 7 can drive the second rotating wheel 4 to move downward or upward, thereby achieving the purpose of adjusting the tightness of the cable. When the second rotating wheel 4 moves downward, the cable is tightened, and vice versa, the cable is loosened.

[0034] An adjusting sleeve 13 is provided on the adjusting screw 9, and an anti-skid pattern is provided on the adjusting sleeve 13 to prevent slipping when the adjusting screw 9 is rotated;

[0035] The first shell 1 and the second shell 2 are both provided with dustproof covers 14 corresponding to the guide rod 8 and the adjusting screw 9 . The dustproof covers 14 effectively prevent external dust from entering into the first shell 1 and the second shell 2 .

[0036] Embodiment 2, on the basis of embodiment 1, a spring groove 10 is provided on the sliding block 7, an auxiliary plate 11 is slidably connected in the spring groove 10, the second rotating wheel 4 is rotatably connected to the auxiliary plate 11, and an array of compensation springs 12 are provided between the auxiliary plate 11 and the spring groove 10.

[0037] During use, after adjusting the tension of the cable, the sliding block 7 remains stable and motionless. Since the cable may be affected by external forces, for example, if the cable is accidentally touched or pulled inadvertently, at this time, under the action of the compensation spring 12, the auxiliary plate 11 moves in the spring groove 10, and the spring force offsets part of the external force, so that the cable has a stretching margin, avoiding the cable from directly bearing external tension, effectively protecting the cable and extending the service life of the cable.

[0038] Embodiment 3, based on embodiment 1, the first shell 1 and the second shell 2 are provided by transparent plates.

[0039] The tension of the internal cables can be observed through the transparent plate, and the tension can be adjusted according to the actual situation for easy observation.

[0040] The above description is only for illustrating the present invention, and it should be understood that the present invention is not limited to the above embodiments, and various variations that conform to the concept of the present invention are within the protection scope of the present invention.

Claims

1. A tensioning device for installing a power cable, comprising a first housing (1) and a second housing (2), characterized in that: The first shell (1) and the second shell (2) are detachably connected, and the inner side walls of the first shell (1) and the second shell (2) are transmission-connected with two groups of first rotating wheels (3) and one group of second rotating wheels (4), and the two groups of first rotating wheels (3) are located above the second rotating wheels (4); The first shell (1) and the second shell (2) are provided with threading holes (5) corresponding to the first rotating wheel (3); The first shell (1) and the second shell (2) are both provided with a sliding groove (6), a sliding block (7) is slidably connected in the sliding groove (6), and a second rotating wheel (4) is provided on the sliding block (7); The first housing (1) is provided with a guide rod (8) matched with the sliding block (7), and the second housing (2) is rotatably connected with an adjusting screw (9) threadedly connected with the sliding block (7).

2. A tensioning device for power cable installation according to claim 1, characterized in that: The sliding block (7) is provided with a spring groove (10), an auxiliary plate (11) is slidably connected in the spring groove (10), the second rotating wheel (4) is rotatably connected to the auxiliary plate (11), and a plurality of compensation springs (12) are arranged between the auxiliary plate (11) and the spring groove (10).

3. A tensioning device for power cable installation according to claim 2, characterized in that: The adjusting screw rod (9) is provided with an adjusting sleeve (13), and the adjusting sleeve (13) is provided with anti-slip grooves.

4. A tensioning device for power cable installation according to claim 3, characterized in that: The first shell (1) and the second shell (2) are both provided with dustproof shells (14) corresponding to the guide rod (8) and the adjusting screw rod (9).

5. A tensioning device for power cable installation according to any one of claims 1 to 4, characterized in that: The first shell (1) and the second shell (2) are arranged by a transparent plate.

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