Power transmission cable lifting device

Abstract

The utility model provides a power transmission cable lifting device which is characterized in that a cable lifting frame is of an integrated triangular structure composed of a left frame and a right frame which are symmetrical, the top of the middle of the cable lifting frame is provided with a hook device, the two ends of the lower portion of the left frame and the two ends of the lower portion of the right frame are respectively provided with a gear, the gears are rotatably installed on the left frame and the right frame through a connecting shaft, and the connecting shaft penetrates through the left frame and the right frame. A locking device is arranged at the outer end of the connecting shaft to lock the connecting shaft on the wire lifting frame, the steel chain is hung on the gear, and the two ends of the steel chain are respectively provided with a hook. According to the device, the stable triangular structure wire lifting frame and the lockable gear ensure the stability and reliability after wire lifting, and the operation safety is improved; the flexible hook facilitates installation and use of the device and can adapt to different working conditions; the arrangement of the limiting plate effectively standardizes the movement of the steel chain, and enhances the accuracy and controllability of the wire lifting operation.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable construction maintenance technical field, specifically, relates to a power transmission cable wire lifting device. BACKGROUND

[0002] In the construction, maintenance and repair operation of power transmission cable, wire lifting operation is a key and frequent work. However, the existing power transmission cable wire lifting device has many deficiencies. For example, the structure of some wire lifting devices is not stable enough, and deformation or instability is prone to occur when the cable weight is borne, which affects the operation safety; the contact mode of the wire lifting part of part of the device with the cable is unreasonable, which is easy to cause damage to the cable; and some wire lifting devices are not flexible and convenient to operate, and are difficult to adjust, resulting in low work efficiency. SUMMARY

[0003] The utility model discloses just based on above-mentioned technical problem, proposes a kind of power transmission cable wire lifting device.

[0004] A kind of power transmission cable wire lifting device, comprising: wire lifting frame, the wire lifting frame is by the integrated triangular structure of symmetrical left frame and right frame, the top of the middle of the wire lifting frame is equipped with hook device, the lower part of the left frame and the right frame is equipped with a gear at both ends respectively, the gear is rotatably installed on the left frame and the right frame by connecting shaft, the connecting shaft passes through the left frame and the right frame, the outer end of the connecting shaft is equipped with locking device, and the connecting shaft is locked on the wire lifting frame, steel chain is hung on the gear, and the both ends of the steel chain are equipped with a hook respectively.

[0005] Preferably, the outer end of the connecting shaft is provided with an external thread, and a locking nut matched with the external thread is arranged at the external thread.

[0006] Preferably, symmetrical side ears are arranged on the locking nut.

[0007] Preferably, end columns are fixedly connected to the both ends of the steel chain, and the end columns are rotatably connected with the hooks.

[0008] Preferably, a limiting plate is arranged at the middle of the steel chain, the limiting plate is composed of two straight plates hinged together, the inner side of the straight plates is provided with a limiting hole facing each other, and the steel chain passes through the limiting hole.

[0009] Beneficial effects: first, the stable triangular structure wire lifting frame and the lockable gear of the device ensure the stability and reliability of wire lifting, improve the operation safety; second, the flexible hook facilitates the installation and use of the device, which can adapt to different working conditions; third, the setting of the limiting plate effectively regulates the movement of the steel chain, enhances the accuracy and controllability of wire lifting operation; finally, the overall structure design is reasonable, the operation is simple, the labor intensity is reduced, and the work efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 The utility model discloses a structure schematic diagram. DETAILED DESCRIPTION

[0011] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in combination with the drawings and specific embodiments. It should be explained that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0012] As Figure 1 The utility model discloses a power cable line lifting device, the device includes line lifting frame, and line lifting frame is by symmetrical left frame 1 and right frame 2 and is composed of integrated triangular structure, and this structure is strong, can bear greater weight without deformation, provides stable basis for line lifting operation, and the top of the middle of line lifting frame is equipped with the hook 8 device 3 for connecting external lifting equipment.

[0013] The lower part of left frame 1 and right frame 2 is equipped with a gear 5 at both ends respectively, and gear 5 is rotatably installed on left frame 1 and right frame 2 through connecting shaft 4, and connecting shaft 4 is fixedly arranged with gear 5, and connecting shaft 4 passes through left frame 1 and right frame 2, and the outer end of connecting shaft 4 is equipped with locking device to lock connecting shaft 4 on line lifting frame, and the design of gear 5 makes steel chain 6 move smoothly in the process of lifting, and locking device can ensure that gear 5 is in fixed state after lifting, and further ensure that steel chain 6 does not slide, and steel chain 6 is hung on gear 5, and both ends of steel chain 6 are equipped with a hook 8 respectively for suspending power cable, and realize line lifting function.

[0014] As further improvement, the outer end of connecting shaft 4 is equipped with external thread, and locking nut 11 matched with the external thread is arranged at the external thread, and the fastening of connecting shaft 4 can be conveniently realized by rotating locking nut 11, and symmetrical side ears 12 on locking nut 11 facilitate operators to exert force to tighten or loosen locking nut 9.

[0015] The both ends of steel chain 6 are fixedly connected with end column 7, and end column 7 is rotatably connected with hook 8, so that hook 8 can be freely rotated according to actual conditions, and better adapt to the cable suspension demand of different angles and positions.

[0016] The middle part of steel chain 6 is equipped with limiting plate 9, and limiting plate 9 is composed of two hinged straight plates, and the inner side of straight plate is equipped with opposite limiting hole 10, and steel chain 6 passes through limiting hole 10, and after lifting is completed, the movement range of steel chain 6 can be limited by limiting plate 9, so as to prevent steel chain 6 from excessively deviating or swinging, and ensure the stability and accuracy of line lifting process.

[0017] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A power cable pulling device, characterized by The utility model relates to a lifting line frame, which comprises: A lifting line frame is composed of a symmetrical left frame and a right frame in a one-piece triangular structure, a hook device is arranged at the top of the lifting line frame, a gear is arranged at the lower end of each of the left frame and the right frame, the gears are rotatably installed on the left frame and the right frame through a connecting shaft, the connecting shaft passes through the left frame and the right frame, a locking device is arranged at the outer end of the connecting shaft to lock the connecting shaft on the lifting line frame, a steel chain is hung on the gear, and a hook is arranged at the end of the steel chain.

2. The power cable fish tape device of claim 1, wherein, The outer end of the connecting shaft is provided with external threads, and a locking nut matched with the external threads is arranged at the external threads.

3. The power cable fish tape device of claim 2, wherein, Symmetrical side ears are arranged on the locking nut.

4. The power cable fish tape device of claim 1, wherein, End columns are fixedly connected to the ends of the steel chain, and the end columns are rotatably connected with the hooks.

5. The power cable fish tape device of claim 1, wherein, Limiting plates are arranged at the middle part of the steel chain, the limiting plates are composed of two hinged straight plates, limiting holes are arranged on the inner sides of the straight plates in a facing manner, and the steel chain passes through the limiting holes.

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