Wire drawing device for electric power

Abstract

The utility model is suitable for the technical field of electric power wire drawing, and provides an electric power wire drawing device, which comprises a support plate; the driving rotating wheel and the guiding rotating wheel rotate on the outer side wall of the supporting plate, and the driving rotating wheel is located on one side of the guiding rotating wheel; the through groove is formed in the position, close to the upper portion of the driving rotating wheel, of the outer side wall of the supporting plate; the screw rod is screwed at the central position of the top of the supporting plate through a thread; the lifting plate is rotationally arranged at the bottom end of the screw rod; the driven rotating wheel rotates at the position, close to the position over the driving rotating wheel, of the outer side wall of the lifting plate; through mutual cooperation of a worm and gear mechanism and a ratchet wheel and ratchet mechanism, a driving rotating wheel can perform wire pulling operation on a power line between two tower poles, and the wire pulling operation has unidirectivity and non-return performance, so that intermittent wire pulling operation is convenient to perform, time is provided for rest of an electric power worker, and the working efficiency of the electric power worker is improved. And the power line can be prevented from retreating under the action of self gravity to influence the wire pulling operation.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric power cable pulling, in particular to an electric power cable pulling device. Background Art

[0002] During the construction of power lines, especially during the installation of overhead lines, the wire pulling device is one of the most widely used auxiliary tools. It is often used between towers to tightly clamp the two ends of the transmission cable and then install it between the two towers.

[0003] Since power lines are relatively heavy, they need to be assisted by a pulling device during installation. During the pulling process, the existing power pulling device is prone to back-moving due to the heavy power lines. The power lines between the two towers are in a U-shape, making it difficult to achieve continuous pulling of the wires.

[0004] Therefore, a power wire pulling device is proposed. Utility Model Content

[0005] The utility model provides an electric power wire pulling device, aiming to solve the above problems.

[0006] The cam is secured to the outer wall of the support plate and is secured to the upper and lower surfaces of the support plate, the cam being secured to the upper and lower surfaces of the support plate and the cam being secured to the lower and upper surfaces of the support plate.

[0007] Preferably, there are two driving wheels and two driven wheels in total, and the two driving wheels and the two driven wheels are symmetrically arranged on one side outer wall of the support plate and the lifting plate respectively.

[0008] Preferably, the lifting plate and the through slot are slidably connected.

[0009] Preferably, the limiting rod passes through the top of the support plate.

[0010] Preferably, the worm and the worm wheel are transmission-connected, and the ratchet and the pawl form a ratchet mechanism.

[0011] Preferably, the handle is located at an off-center position of the disc.

[0012] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0013] Through the cooperation of the worm gear mechanism and the ratchet mechanism, the active wheel can pull the power line between the two towers. The pulling operation is unidirectional and non-return, which facilitates intermittent pulling operation, provides time for power workers to rest, and prevents the power line from retreating under the action of its own gravity, affecting the pulling operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the support plate structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the protective cover of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the lifting plate of the present utility model.

[0018] In the figure: 1. Support plate; 2. Driving wheel; 3. Guide wheel; 4. Through slot; 5. Screw; 6. Lifting plate; 7. Driven wheel; 8. Limit rod; 9. Rubber rib; 10. Protective cover; 11. Worm; 12. Worm wheel; 13. Ratchet; 14. Pawl; 15. Disc; 16. Handle. DETAILED DESCRIPTION

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0020] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0021] The present invention provides a wire pulling device for electric power. Figure 1-4 As shown, it includes a support plate 1, on one side of the outer wall of the support plate 1, two active runners 2 and a guide runner 3 are rotatably connected, the guide runner 3 is located between the two active runners 2, a through groove 4 is opened on the outer wall of one side of the support plate 1 near the upper position of the two active runners 2, and a screw rod 5 is screwed together at the top center position of the support plate 1 through a thread, the bottom end of the screw rod 5 is rotatably connected to a lifting plate 6, and a driven runner 7 is rotatably connected to the upper position of the active runner 2 on the outer wall of one side of the lifting plate 6. There are two active runners 2 and two driven runners 7, and the two active runners 2 and the two driven runners 7 are symmetrically arranged on the outer walls of one side of the support plate 1 and the lifting plate 6 respectively. A limiting rod 8 is welded to the top of the lifting plate 6 near one side of the screw rod 5. Rubber ribs 9 are embedded and fixed on the inner walls of one side of the driving runner 2, the guide runner 3 and the driven runner 7. A protective cover 10 is fixed to the outer wall of the other side of the support plate 1 by screws. A worm gear 12 is fixedly connected to the inner position of the central position of the outer wall of one side of the driving runner 2 near the inner position of the protective cover 10. A worm 11 is rotatably connected to the position above the worm gear 12 on the inner wall of one side of the protective cover 10. A ratchet 13 is fixedly connected to the outer position of the protective cover 10 near the central position of the outer wall of one side of the worm gear 12. A pawl 14 is provided on the outer wall of the protective cover 10 away from the support plate 1. A disc 15 is welded to one end of the worm gear 11. A handle 16 is welded to the end of the disc 15 away from the worm gear 11. The handle 16 is located at an eccentric position of the disc 15.

[0022] It should be noted that, since the power line is bulky and the power line between the two towers is in a U-shaped state, it is easy to retreat during the pulling process, making it difficult to achieve continuous pulling of the wire. In this embodiment, the worm gear mechanism and the ratchet mechanism cooperate with each other, so that the active wheel 2 can pull the power line between the two towers. The pulling operation is unidirectional and non-return, which facilitates intermittent pulling operations, provides time for power workers to rest, and prevents the power line from retreating under its own gravity, affecting the pulling operation.

[0023] Specifically, in this embodiment, this scheme mainly includes a driving wheel 2, a driven wheel 7, a worm 11, a worm wheel 12, a ratchet 13 and a pawl 14. When the power line between the two towers is pulled, the electrician carries the device to the top of the tower and fixes it on the tower. At this time, the electrician passes the power line in a U shape through the two driving wheels 2 and the guide wheel 3, rotates the screw 5, and under the guidance of the limit rod 8, the screw 5 pushes the lifting plate 6 to move downward, and the driven wheel 7 on the lifting plate 6 moves downward synchronously. The driven wheel 7 and the driving wheel 2 squeeze and limit the power line, and the rubber rib 9 is used to increase the pressure from the driving wheel 2. Due to the frictional resistance between the dynamic wheel 7 and the active wheel 2 and the power line, when performing the wire pulling operation, the electrician holds the handle 16 and rotates the disk 15, and the worm 11 on the disk 15 rotates synchronously, and the worm 11 drives the worm wheel 12 to rotate. As the worm wheel 12 rotates, the active wheel 2 and the ratchet 13 on the outer walls on both sides of the worm wheel 12 rotate synchronously. During the rotation of the active wheel 2, the power line is transported to achieve the purpose of wire pulling. During the rotation of the ratchet 13, the pawl 14 makes it rotate only in one direction, thereby preventing the power line from being pulled back due to its own gravity, and enabling the electrician to gradually perform the wire pulling operation on the power line.

[0024] In a further preferred embodiment of the present invention, Figure 1 、 Figure 2 and Figure 4 As shown, the lifting plate 6 and the through slot 4 are slidably connected, and the limiting rod 8 passes through the top of the supporting plate 1.

[0025] In this embodiment, the stability of the movement of the lifting plate 6 in the through slot 4 can be ensured by the sliding connection, and the stability of the lifting plate 6 can be further ensured by the limiting function of the limiting rod 8.

[0026] In a further preferred embodiment of the present invention, Figure 2-3 As shown, the worm 11 and the worm wheel 12 are transmission-connected, and the ratchet 13 and the pawl 14 form a ratchet mechanism.

[0027] In this embodiment, the transmission connection can ensure that when the worm 11 rotates, the worm wheel 12 rotates synchronously, and the ratchet mechanism is used to limit the rotation direction of the ratchet 13 by the pawl 14, ensuring that the ratchet 13 rotates in one direction, thereby preventing the power line from retreating during the pulling process.

[0028] It should be noted that for the aforementioned embodiments, for simplicity of description, they are all expressed as a series of action combinations. However, those skilled in the art should be aware that the present invention is not limited by the order of the actions described, because according to the present invention, certain steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in this specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

[0029] In the several embodiments provided in this application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely illustrative, such as the division of the above-mentioned units. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the coupling or communication connection between each other shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunications or other forms.

[0030] The units described above as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope to be protected by the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making any creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also fall within the scope to be protected by the present invention.

Claims

1. A power wire pulling device, characterized in that: include: Support plate (1); A driving wheel (2) and a guide wheel (3) rotating on the outer side wall of the support plate (1), wherein the driving wheel (2) is located on one side of the guide wheel (3); A through slot (4) is provided on the outer wall of the support plate (1) at a position above the driving wheel (2); and A screw (5) screwed onto the center of the top of the support plate (1) through a thread; A lifting plate (6) rotates at the bottom end of the screw (5); a driven rotating wheel (7) rotating on the outer wall of the lifting plate (6) close to a position just above the driving rotating wheel (2); A limiting rod (8) welded to the top of the lifting plate (6) at a position close to one side of the screw rod (5); Rubber ribs (9) are embedded and fixed to the inner side walls of the driving wheel (2), the guide wheel (3) and the driven wheel (7); A protective cover (10) fixed to the outer wall of the other side of the support plate (1) by means of bolts; a worm (11) rotating inside the protective cover (10); a worm wheel (12) fixed at the center of the outer side wall of the driving wheel (2); a ratchet wheel (13) fixed at a central position of an outer side wall of the worm wheel (12); a ratchet pawl (14) provided on the outer wall of the protective cover (10) at an upper position close to the ratchet wheel (13); a disc (15) welded to one end of the worm gear (12); A handle (16) is welded to the outer side wall of the disc (15).

2. The electric power wire pulling device according to claim 1, characterized in that: There are two active rotating wheels (2) and two driven rotating wheels (7) in total, and the two active rotating wheels (2) and the two driven rotating wheels (7) are symmetrically arranged on one side outer wall of the support plate (1) and the lifting plate (6).

3. The electric power wire pulling device according to claim 1, characterized in that: The lifting plate (6) and the through slot (4) are slidably connected.

4. The electric power wire pulling device according to claim 1, characterized in that: The limiting rod (8) passes through the top of the support plate (1).

5. The electric power wire pulling device according to claim 1, characterized in that: The worm (11) and the worm wheel (12) are in transmission connection, and the ratchet (13) and the pawl (14) form a ratchet mechanism.

6. The electric power wire pulling device according to claim 1, characterized in that: The handle (16) is located at an eccentric position of the disc (15).

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