Power cable paying-off auxiliary traction device

Abstract

The utility model relates to a power cable pay-off auxiliary traction device which comprises a bottom plate, two sliding supports are arranged on the two sides of the upper end of the bottom plate, bearing plates are arranged in the sliding supports in a sliding mode, and an adjusting structure is arranged at the bottom end of the bottom plate. The utility model relates to the technical field of cable pay-off traction. According to the auxiliary traction device for paying off the power cable, the two clamping structures are located on the two sides of the cable correspondingly and used for clamping and guiding the cable, when the cable is twisted, due to the fact that the cable is guided by the clamping structures, the cable can drive the two clamping structures and a guide ring to have the twisting trend when the cable has the twisting potential energy, and therefore the cable is prevented from being twisted. When the guide ring rotates, the torsion spring deforms, and the torsion spring applies a force opposite to the torsion direction to the cable, thereby achieving the purpose of preventing the cable from twisting, and further achieving the purpose of preventing the cable from twisting.

Description

Technical Field

[0001] The utility model relates to the technical field of cable laying and traction, in particular to an auxiliary traction device for laying power cables. Background Art

[0002] In power engineering, the laying of cables is a basic and crucial task. Auxiliary traction for cable laying can ensure that the cable remains stable and orderly during the laying process, avoiding damage to the cable or unnecessary tension, thereby guaranteeing the safety and stability of power transmission.

[0003] However, when the cable is released from the cable reel, it is prone to twisting due to the gravity of the cable itself and the blowing of the wind. The twisting of the cable will cause the insulating layer to be squeezed and stretched. In the long run, the insulating layer will age, harden, and even crack, which will not only reduce the insulation performance of the cable but also may cause potential safety hazards such as leakage and short circuit, thus shortening its service life. Content of the Utility Model

[0004] In view of the deficiencies of the existing technology, the purpose of the utility model is to provide an auxiliary traction device for laying power cables to solve the technical problems mentioned in the above background art.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions:

[0006] An auxiliary traction device for laying power cables includes a bottom plate. Two sliding brackets are arranged on both sides of the upper end of the bottom plate. A supporting plate is slidably arranged inside each of the sliding brackets. An adjusting structure is arranged at the bottom end of the bottom plate.

[0007] Installation brackets are arranged on both sides of one end of the bottom plate. A sliding guide rail is jointly arranged at the tops of the two installation brackets. A slider is slidably arranged at the top of the sliding guide rail. Installation rings are fixedly arranged on both sides of the upper end of the slider. Guide rings are rotatably arranged at the inner rings of the two installation rings. A number of torsion springs connected to the guide rings are arranged inside the installation rings.

[0008] Guide grooves are opened on the opposite sides of the two guide rings. Two groups of clamping structures are jointly arranged inside the two guide grooves.

[0009] Furthermore, the adjusting structure includes two adjusting screws. The adjusting screws are installed inside the sliding brackets and are threadedly connected to the supporting plate. A driving motor is arranged at the bottom end of the bottom plate. Driving shafts are connected to both ends of the driving motor. The two adjusting screws are both driven by the driving shafts through bevel gear sets.

[0010] Further, the clamping structure includes clamping rods, and extension rods are arranged at both ends of the clamping rods. External threads are provided on the outer surfaces of the extension rods, and they are threadedly connected to the clamping rods. The two extension rods have the same length, and the thread directions on their outer surfaces are opposite. A connecting shaft is rotatably arranged at the end of the extension rod away from the clamping rod, and the connecting shaft is perpendicular to the extension rod. Both ends of the connecting shaft are respectively inserted into the interiors of two guiding grooves.

[0011] Further, sliding blocks are rotatably arranged at both ends of the connecting shaft, and the sliding blocks are in sliding fit with the guiding grooves.

[0012] Further, a slope is provided on the side wall of the bottom plate.

[0013] Further, a rotating groove with an upward opening is provided at the top end of the supporting plate.

[0014] In summary, the present utility model includes at least one of the following beneficial technical effects:

[0015] 1. For this power cable laying auxiliary traction device, the two groups of clamping structures are respectively located on both sides of the cable for the purpose of clamping and guiding the cable. When the cable twists, due to the cable being guided by the clamping structure, when the cable has the potential energy of twisting, it will drive the two groups of clamping structures and the guiding ring to have a tendency to twist. When the guiding ring rotates, the torsion spring will deform, and by applying a force in the opposite direction of the cable twist through the torsion spring, the purpose of preventing the cable from twisting is achieved, thereby avoiding the situation of cable twisting.

[0016] 2. For this power cable laying auxiliary traction device, since the connection mode between the two extension rods and the clamping rod is a threaded connection, the length of the clamping structure can be adjusted by rotating the extension rods on both sides. Since the connecting shafts at the ends of the two extension rods are respectively inserted into the interiors of the two guiding grooves, when the positions of the two extension rods and the clamping rod change, the distance between the clamping rod and the center of the guiding ring can be adjusted, thereby adjusting the distance between the clamping rods on both sides to adapt to cables of different thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic structural diagram of a power cable laying auxiliary traction device of the present utility model.

[0019] Figure 2 Schematic diagram of the sliding guide rail and slider of an auxiliary traction device for laying power cables of the present utility model.

[0020] Figure 3 Schematic diagram of the clamping structure of an auxiliary traction device for laying power cables of the present utility model.

[0021] Figure 4 Schematic diagram of the mounting ring, guiding ring and torsion spring of an auxiliary traction device for laying power cables of the present utility model.

[0022] In the figure, 1. bottom plate; 2. sliding bracket; 3. supporting plate; 4. adjusting structure; 41. adjusting screw; 42. driving motor; 43. driving shaft; 44. bevel gear set; 5. mounting bracket; 6. sliding guide rail; 7. slider; 8. mounting ring; 9. guiding ring; 10. torsion spring; 11. guiding groove; 12. clamping structure; 121. clamping rod; 122. extension rod; 123. external thread; 124. connecting shaft; 125. sliding block; 13. slope; 14. rotating groove. Specific embodiments

[0023] The following further describes the present utility model in detail with reference to the accompanying drawings.

[0024] Embodiment:

[0025] Refer to Figure 1 - Figure 4 An auxiliary traction device for laying power cables disclosed by the present utility model includes a bottom plate 1. Two sliding brackets 2 are arranged on both sides of the upper end of the bottom plate 1. Supporting plates 3 are slidably arranged inside the sliding brackets 2. An adjusting structure 4 is arranged at the bottom end of the bottom plate 1;

[0026] Mounting brackets 5 are arranged on both sides of one end of the bottom plate 1. A sliding guide rail 6 is jointly arranged at the top ends of the two mounting brackets 5. A slider 7 is slidably arranged at the top end of the sliding guide rail 6. Mounting rings 8 are fixedly arranged on both sides of the upper end of the slider 7. Guiding rings 9 are rotatably arranged at the inner rings of the two mounting rings 8. A number of torsion springs 10 connected to the guiding rings 9 are arranged inside the mounting rings 8;

[0027] Guiding grooves 11 are formed on the opposite sides of the two guiding rings 9. Two groups of clamping structures 12 are jointly arranged inside the two guiding grooves 11.

[0028] In this embodiment, when in use, the cable reel is pushed to the upper end of the bottom plate 1, and the two ends of the central axis of the cable reel are placed on the top ends of the supporting plates 3. The two supporting plates 3 are simultaneously pushed upward through the adjusting mechanism, so that the cable reel floats in the air to facilitate the laying of the cable;

[0029] After the cable reel is suspended in the air, one end of the cable is passed through two guiding rings 9, and the two sets of clamping structures 12 are respectively located on both sides of the cable for the purpose of clamping and guiding the cable. When the cable twists, due to the guiding of the cable by the clamping structure 12, when the cable twists, it will drive the two sets of clamping structures 12 to rotate, and then drive the guiding ring 9 to rotate. During the rotation of the guiding ring 9, the torsion spring 10 will deform, and the torsion spring 10 applies a force in the opposite direction of the torsion to the cable, so as to achieve the purpose of preventing the cable from twisting.

[0030] In a further preferred embodiment of the present utility model, as Figures 1-4 shown, the adjusting structure 4 includes two adjusting screws 41. The adjusting screws 41 are installed inside the sliding bracket 2 and are threadedly connected to the supporting plate 3. A driving motor 42 is provided at the bottom end of the bottom plate 1. Both ends of the driving motor 42 are connected with driving shafts 43. The two adjusting screws 41 are respectively driven by the driving shafts 43 through bevel gear sets 44.

[0031] In this embodiment, the driving motor 42 drives the driving shaft 43 to rotate, and drives the two adjusting screws 41 to rotate through the bevel gear set 44. The supporting plate 3 is in threaded cooperation with the adjusting screws 41. Therefore, during the rotation of the adjusting screws 41, the effect of adjusting the position of the supporting plate 3 at the upper end of the sliding bracket 2 can be achieved.

[0032] In a further preferred embodiment of the present utility model, as Figures 1-4 shown, the clamping structure 12 includes a clamping rod 121. Both ends of the clamping rod 121 are provided with extension rods 122. The outer surface of the extension rod 122 is provided with external threads 123 and is threadedly connected to the clamping rod 121. The two extension rods 122 have the same length and the thread directions on the outer surfaces are opposite. One end of the extension rod 122 away from the clamping rod 121 is rotatably provided with a connecting shaft 124, and the connecting shaft 124 is perpendicular to the extension rod 122. The two ends of the connecting shaft 124 are respectively inserted into the two guiding grooves 11.

[0033] In this embodiment, since the connection mode of the two extension rods 122 and the clamping rod 121 is threaded connection, the purpose of adjusting the length of the clamping structure 12 can be achieved by rotating the two extension rods 122 on both sides. Since the connecting shafts 124 at the ends of the two extension rods 122 are respectively inserted into the two guiding grooves 11, when the positions of the two extension rods 122 and the clamping rod 121 change, the distance between the clamping rod 121 and the center of the guiding ring 9 can be adjusted, so as to adjust the distance between the two clamping rods 121 on both sides to adapt to cables of different thicknesses;

[0034] Moreover, since the extension rod 122 and the connecting shaft 124 are rotatably connected, when the two clamping rods 121 guide the cable, the clamping rods 121 can rotate following the movement of the cable to reduce the friction force on the cable.

[0035] In a further preferred embodiment of the present utility model, as Figures 1-4 shown, sliding blocks 125 are rotatably provided at both ends of the connecting shaft 124, and the sliding blocks 125 are slidably engaged with the guiding grooves 11.

[0036] In this embodiment, through the arrangement of the sliding blocks 125, it is used to improve the stability of the connecting shaft 124 installed inside the guiding grooves 11 and avoid the problem of the connecting shaft 124 falling off.

[0037] In a further preferred embodiment of the present utility model, as Figures 1-4 shown, a slope 13 is provided on the side wall of the bottom plate 1.

[0038] In this embodiment, through the arrangement of the slope 13, it is convenient to push the heavier cable reel to the upper end of the bottom plate 1.

[0039] In a further preferred embodiment of the present utility model, as Figures 1-4 shown, a rotating groove 14 with an upward opening is provided at the top end of the supporting plate 3.

[0040] In this embodiment, through the arrangement of the rotating groove 14, when erecting the cable reel, the stability of the cable reel at the upper end of the supporting plate 3 is improved.

[0041] The embodiments of this specific implementation manner are all preferred embodiments of the present utility model, and do not limit the protection scope of the present utility model accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present utility model shall be covered within the protection scope of the present utility model.

Claims

1. An auxiliary traction device for laying power cables, characterized in that, It includes a bottom plate (1). On both sides of the upper end of the bottom plate (1), there are two sliding brackets (2). Inside each of the sliding brackets (2), there is a supporting plate (3) slidably arranged. At the bottom end of the bottom plate (1), there is an adjusting structure (4). On both sides of one end of the bottom plate (1), there are installation brackets (5). At the top ends of the two installation brackets (5), there is a sliding guide rail (6) jointly arranged. At the top of the sliding guide rail (6), there is a slider (7) slidably arranged. On both sides of the upper end of the slider (7), there are installation rings (8) fixedly arranged. Inside the inner rings of the two installation rings (8), there are guide rings (9) rotatably arranged. Inside the installation rings (8), there are a number of torsion springs (10) connected to the guide rings (9). On one side of the two guide rings (9) facing each other, there are guide grooves (11) opened. Inside the two guide grooves (11), there are two groups of clamping structures (12) jointly arranged.

2. The auxiliary traction device for laying power cables according to claim 1, characterized in that, The adjusting structure (4) includes two adjusting screws (41). The adjusting screws (41) are installed inside the sliding brackets (2) and are threadedly connected to the supporting plates (3). At the bottom end of the bottom plate (1), there is a driving motor (42). At both ends of the driving motor (42), there are driving shafts (43) connected. The two adjusting screws (41) are both driven by the driving shafts (43) through bevel gear sets (44).

3. The auxiliary traction device for laying power cables according to claim 2, characterized in that, The clamping structure (12) includes a clamping rod (121). At both ends of the clamping rod (121), there are extension rods (122). On the outer surface of the extension rods (122), there are external threads (123) and they are threadedly connected to the clamping rod (121). The lengths of the two extension rods (122) are the same and the thread directions on the outer surfaces are opposite. At the end of the extension rod (122) away from the clamping rod (121), there is a connecting shaft (124) rotatably arranged, and the connecting shaft (124) is perpendicular to the extension rod (122). The two ends of the connecting shaft (124) are respectively inserted into the two guide grooves (11).

4. The auxiliary traction device for laying power cables according to claim 3, characterized in that, At both ends of the connecting shaft (124), there are sliding blocks (125) rotatably arranged. The sliding blocks (125) are slidably matched with the guide grooves (11).

5. The auxiliary traction device for laying power cables according to claim 4, characterized in that, On the side wall of the bottom plate (1), there is a slope (13).

6. The auxiliary traction device for laying power cables according to claim 5, wherein, On the top end of the supporting plate (3), there is a rotating groove (14) with an upward opening.

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