Safety transmission pulley for power transmission line maintenance

Abstract

The utility model relates to the technical field of power transmission line maintenance, and particularly discloses a power transmission line maintenance safety transmission tackle, which comprises a protection box, a connecting shaft arranged at the bottom of the protection box, a hanging ring arranged at the bottom of the connecting shaft, and an adjusting mechanism used for connecting power transmission lines with different sizes, the adjusting mechanism is located on the protection box, the adjusting mechanism comprises a limiting vertical rod, and the outer side wall of the limiting vertical rod is slidably connected with a limiting sliding block; according to the utility model, under the action of the adjusting mechanism and the sliding action of the limiting slide block, the pulleys above the protection box can be moved, and the distance between the two pulleys is correspondingly increased, so that when a worker installs power transmission lines with different sizes, the worker does not need to work, and the work efficiency is improved. And the pulleys with different intervals are prepared according to the sizes of different lines, so that the maintenance efficiency of a worker on the power transmission line is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of power transmission line maintenance, and in particular relates to a safe transfer pulley for power transmission line maintenance. Background Art

[0002] The transmission line transfer pulley is an important equipment in the power system, which is used to transfer and install line components such as conductors and ground wires during the construction, maintenance and overhaul of transmission lines.

[0003] In the prior art, a pulley used for inspecting and maintaining a transmission line is generally installed with two pulleys when it is installed and used with the line, and a gap is left between the two pulleys. When installed and used, the line is located between the two pulleys. Since the sizes of transmission lines at different construction sites are different, and the spacing between the two pulleys is fixed in the prior art, workers are required to prepare pulleys with different spacings according to the sizes of different lines when working, thereby reducing the maintenance efficiency of the workers in inspecting and maintaining the transmission line. For this reason, a transmission line maintenance safety transfer pulley is proposed. Utility Model Content

[0004] The utility model aims to provide a transmission line maintenance safety transfer pulley to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A transmission line maintenance safety transfer pulley comprises a protection box, a connecting shaft installed at the bottom of the protection box, and a lifting ring installed at the bottom of the connecting shaft, and also comprises:

[0007] An adjusting mechanism is used to connect power transmission lines of different sizes. The adjusting mechanism is located on a protection box. The adjusting mechanism includes a limit vertical rod. The outer wall of the limit vertical rod is slidably connected to a limit slider. An extension plate is fixedly connected to one side of the outer wall of the limit slider. The outer wall of the protection box is connected to a connecting rope. The end of the connecting rope away from the protection box is connected to a plug-in rod. The limit slider and the interior of the protection box are both rotatably connected to a rotating shaft. The outer wall of the rotating shaft is located inside the protection box and is fixedly connected to a pulley.

[0008] Through the setting of the above technical scheme, the pulley located above the protection box can be moved by utilizing the sliding action of the limit slider, and the distance between the two pulleys is increased accordingly, so that when the staff installs transmission lines of different sizes, there is no need for the staff to prepare pulleys with different distances according to the sizes of different lines, thereby improving the maintenance efficiency of the staff in inspecting the transmission lines.

[0009] Preferably, a through groove is provided on one side of the lifting ring, a sliding cavity is provided inside the lifting ring, a telescopic spring is fixedly connected inside the sliding cavity, a sliding plate is fixedly connected to one end of the telescopic spring away from the sliding cavity, and the bottom of the sliding plate slides and extends to the outside of the sliding cavity, the lifting ring is located at the bottom of the sliding cavity and a sliding groove is provided, the sliding plate slides and extends to the outside of the sliding cavity through the sliding groove, the sliding plate is located inside the through groove and fits with the bottom of the through groove.

[0010] Through the setting of the above technical scheme, after the installation of the transmission line is completed, the sliding plate is slid upward to be stored in the sliding cavity to open the through groove, and then the staff installs the safety belt inside the lifting ring, and then releases the sliding plate, so that the sliding plate can automatically close the through groove according to the action of the telescopic spring, so that the safety belt can be stably located inside the lifting ring. This structure is easy to operate and is convenient for the staff to install the safety belt. The sliding action of the sliding plate can be limited by the action of the telescopic spring, thereby improving the sliding limiting effect of the sliding plate.

[0011] Preferably, a square slide groove is opened on one side of the outer wall of the protection box, the limiting vertical rod is installed inside the square slide groove, and the outer side wall of the limiting sliding block and the inner side wall of the square slide groove are slidably fitted.

[0012] Preferably, the extension plate is provided with a socket, and the outer wall of the protection box is provided with a plurality of mounting holes, the socket and the mounting holes are arranged correspondingly, the plug-in rod and the socket and the mounting hole are all slidingly arranged, and the plug-in rod fixes the extension plate and the protection box through the socket and the mounting hole.

[0013] Preferably, the outer walls of the two pulleys are provided with limiting grooves.

[0014] Preferably, one end of the limiting sliding block extends to the outside of the protection box.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] Through the action of the adjustment mechanism and the sliding action of the limit slider, the pulley located above the protection box can be moved, and the distance between the two pulleys can be increased accordingly, so that when the staff installs transmission lines of different sizes, there is no need for the staff to prepare pulleys with different distances according to the sizes of different lines, thereby improving the maintenance efficiency of the staff in inspecting the transmission lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2This is a back structural diagram of the utility model;

[0019] Figure 3 This is a cross-sectional structural diagram of the protection box of the utility model;

[0020] Figure 4 This is a cross-sectional structural diagram of the lifting ring of the utility model;

[0021] Figure 5 For this utility model Figure 4 Enlarged structural diagram of point A.

[0022] In the figure: 1, protection box; 2, connecting shaft; 3, lifting ring; 301, telescopic spring; 302, sliding plate; 4, limiting vertical rod; 401, limiting sliding block; 402, extension plate; 403, connecting rope; 404, plug-in rod; 405, rotating shaft; 406, pulley. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1-5 As shown, a transmission line maintenance safety transfer pulley comprises a protection box 1, a connecting shaft 2 installed at the bottom thereof, and a lifting ring 3 installed at the bottom of the connecting shaft 2, and also comprises: an adjusting mechanism for connecting transmission lines of different sizes, the adjusting mechanism being located on the protection box 1, the adjusting mechanism comprising a limit vertical rod 4, the outer side wall of the limit vertical rod 4 being slidably connected to a limit slider 401, an outer side wall of the limit slider 401 being fixedly connected to an extension plate 402, an outer wall of the protection box 1 being connected to a connecting rope 403, an end of the connecting rope 403 away from the protection box 1 being connected to a plug-in rod 404, the limit slider 401 and the interior of the protection box 1 are both rotatably connected to a rotating shaft 405, and the outer side wall of the rotating shaft 405 is located inside the protection box 1 and fixedly connected to a pulley 406;

[0025] The utility model is further specifically described in detail. A square slide groove is provided on one side of the outer wall of the protection box 1. The limit vertical rod 4 is installed inside the square slide groove. The outer wall of the limit slider 401 and the inner wall of the square slide groove are slidably fitted. A plug hole is provided on the extension plate 402. A plurality of mounting holes are provided on the outer wall of the protection box 1. The plug holes and the mounting holes are correspondingly provided. The plug rod 404 and the plug holes and the mounting holes are all slidably provided. The plug rod 404 fixes the extension plate 402 and the protection box 1 through the plug holes and the mounting holes. The outer walls of the two pulleys 406 are provided with limit grooves. One end of the limit slider 401 extends to the outside of the protection box 1.

[0026] As can be seen from the above, when the staff installs the pulley and the transmission line, they first slide the limit slider 401, and accordingly make the limit slider 401 slide inside the square slide groove, and then drive the rotating shaft 405 and the pulley 406 located above the inside of the protection box 1 to move upward, so that the distance between the two pulleys 406 is increased, and then the transmission line to be installed is placed between the two pulleys 406, and the outer wall of the transmission line is correspondingly fitted with the limit grooves on the two pulleys 406, at this time the socket and the installation hole are corresponding, and then the plug rod 404 is inserted into the socket and the installation hole, and the extension rod 404 is correspondingly inserted into the socket and the installation hole. The extension plate 402 is fixed to the protection box 1, so that the pulley 406 located above the inside of the protection box 1 is fixed, so that the transmission line is stably located between the two pulleys 406. Through the setting of this structure, the pulley 406 located above the protection box 1 can be moved by the sliding action of the limit slider 401, and the distance between the two pulleys 406 is increased accordingly, so that when the staff installs the transmission lines of different sizes, it is not necessary for the staff to prepare pulleys 406 with different distances according to the sizes of different lines, thereby improving the maintenance efficiency of the staff in the maintenance of the transmission line;

[0027] It should be noted that the spacing between the multiple installation holes is adapted to power transmission lines of different sizes. By utilizing the connecting rope 403, the coffee table stem 404 can be stably located on the outer wall of the protection box 1, making it convenient for staff to use it.

[0028] like Figure 1-5 As shown, a through slot is provided on one side of the lifting ring 3, a sliding cavity is provided inside the lifting ring 3, a telescopic spring 301 is fixedly connected inside the sliding cavity, a sliding plate 302 is fixedly connected to one end of the telescopic spring 301 away from the sliding cavity, and the bottom of the sliding plate 302 slides and extends to the outside of the sliding cavity, a sliding slot is provided at the bottom of the lifting ring 3 located in the sliding cavity, the sliding plate 302 slides and extends to the outside of the sliding cavity through the sliding slot, and the sliding plate 302 is located inside the through slot and fits with the bottom of the through slot;

[0029] As can be seen from the above, after the installation of the transmission line is completed, the sliding plate 302 is slid upward so that the sliding plate 302 is stored inside the sliding cavity to open the through slot, and then the staff installs the safety belt inside the lifting ring 3, and then releases the sliding plate 302, so that the sliding plate 302 can automatically close the through slot according to the action of the telescopic spring 301, so that the safety belt is stably located inside the lifting ring 3. This structure is easy to operate and is convenient for the staff to install the safety belt. The sliding action of the sliding plate 302 can be limited by utilizing the action of the telescopic spring 301, thereby improving the sliding limiting effect of the sliding plate 302.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A transmission line maintenance safety transfer pulley, characterized in that: The invention comprises a protection box (1), a connecting shaft (2) installed at the bottom thereof, and a lifting ring (3) installed at the bottom of the connecting shaft (2), and also comprises: An adjustment mechanism is used for connecting power transmission lines of different sizes, the adjustment mechanism being located on a protection box (1), the adjustment mechanism comprising a limit vertical rod (4), the outer side wall of the limit vertical rod (4) being slidably connected to a limit slider (401), one side of the outer wall of the limit slider (401) being fixedly connected to an extension plate (402), the outer wall of the protection box (1) being connected to a connecting rope (403), the end of the connecting rope (403) away from the protection box (1) being connected to a plug-in rod (404), the limit slider (401) and the interior of the protection box (1) being rotatably connected to a rotating shaft (405), the outer side wall of the rotating shaft (405) being located inside the protection box (1) and fixedly connected to a pulley (406).

2. A transmission line maintenance safety transfer pulley according to claim 1, characterized in that: A through groove is provided on one side of the lifting ring (3), a sliding cavity is provided inside the lifting ring (3), a telescopic spring (301) is fixedly connected inside the sliding cavity, a sliding plate (302) is fixedly connected to one end of the telescopic spring (301) away from the sliding cavity, and the bottom of the sliding plate (302) slides and extends to the outside of the sliding cavity, a sliding groove is provided at the bottom of the sliding cavity of the lifting ring (3), the sliding plate (302) slides and extends to the outside of the sliding cavity through the sliding groove, and the sliding plate (302) is located inside the through groove and fits with the bottom of the through groove.

3. A transmission line maintenance safety transfer pulley according to claim 1, characterized in that: A square slide groove is provided on one side of the outer wall of the protection box (1), the limiting vertical rod (4) is installed inside the square slide groove, and the outer side wall of the limiting sliding block (401) and the inner side wall of the square slide groove are slidably fitted.

4. A transmission line maintenance safety transfer pulley according to claim 1, characterized in that: The extension plate (402) is provided with a plug hole, and the outer wall of the protection box (1) is provided with a plurality of mounting holes, the plug hole and the mounting holes are arranged correspondingly, the plug rod (404) is slidably arranged with the plug hole and the mounting hole, and the plug rod (404) fixes the extension plate (402) and the protection box (1) through the plug hole and the mounting hole.

5. A transmission line maintenance safety transfer pulley according to claim 1, characterized in that: The outer walls of the two pulleys (406) are both provided with limiting grooves.

6. A transmission line maintenance safety transfer pulley according to claim 1, characterized in that: One end of the limiting sliding block (401) extends to the outside of the protection box (1).

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