1. The utility model provides a hoist for post switch installation, includes the pole, its characterized in that: the electric pole is provided with a fixed hoop, the fixed hoop is provided with a bearing frame, the bearing frame is provided with a double-rail fixed pulley, a lifting rope is wound on the double-rail fixed pulley, one end of the lifting rope is connected with an on-column switch, the other end of the lifting rope is connected with a hoisting mechanism, and the hoisting mechanism is arranged on the ground.

2. The spreader for pole top switch installation of claim 1, wherein: the bearing frame adopts a straight frame or a triangular frame.

3. A spreader for pole top switch installation according to claim 2, wherein: the bearing frame is provided with a wheel shaft, and the wheel shaft is provided with a double-track fixed pulley.

4. A spreader for pole top switch installation according to claim 3, wherein: the double-rail fixed pulley comprises a pulley body, and a double-rail groove is formed in the surface of the pulley body.

5. A spreader for pole top switch installation according to claim 4, wherein: and a lifting rope is wound in each rail groove of the double rail grooves.

6. A spreader for pole top switch installation according to claim 5, wherein: one end of the lifting rope is provided with a lifting hook, and the lifting hook is connected with the column switch.

7. A spreader for pole top switch installation according to claim 6, wherein: the pole-mounted switch comprises a support frame, a fastening hoop is arranged at one end of the support frame and connected with an electric pole, a pole-mounted switch body is arranged on the support frame, and the pole-mounted switch body is connected with a lifting hook.

8. A spreader for pole top switch installation according to claim 7, wherein: the hoisting mechanism adopts a small double-rope hoist.

9. A method for pole top switch installation, comprising: the method comprises the following steps:

(1) mounting a mounting hanger above a switch on a prepared mounting post on the electric pole;

(2) winding a lifting rope on the double-track fixed pulley, wherein one end of the lifting rope is connected with the hoisting mechanism, and the other end of the lifting rope is provided with a lifting hook;

(3) installing the pole-mounted switch body on a support frame;

(4) loosely connecting the fastening hoop of the support frame to the bottom of the electric pole;

(5) connecting the lifting hook with the column switch;

(6) starting the hoisting mechanism, and pulling the column upper switch to rise by the lifting rope under the driving of the hoisting mechanism;

(7) when the position reaches the switch mounting position on the column, the hoisting mechanism is stopped, and the operator tightens the fastening hoop;

(8) separating the lifting hook from the pole switch, disassembling the lifting appliance from the upper part of the pole for reuse, and finishing the installation of the pole switch.

Background

The pole switch is a safety switch used on a telegraph pole to guarantee the electricity utilization safety, mainly plays a role in isolating the high voltage of a circuit, has various forms and different performances on the market, and mainly comprises a demarcation switch, a section switch, a connection switch and the like.

The installation of present column switch generally adopts crane single rope hoist and mount, but the crane operation face receives the topography influence greatly easily, meets special topography such as slope crane and can't get into the installation, and crane single rope hoist and mount lifting process is unstable, causes the unhook problem easily, seriously threatens ground operation personnel's personal safety, influences the normal installation of column switch.

Disclosure of Invention

In view of the above-mentioned deficiencies of the prior art, the present invention provides a spreader and method for pole-mounted switch installation; this a hoist for column switch installation lifts by crane the design for column switch specially forms, and this scheme operation face is little, receives the topography to influence for a short time, no matter be ordinary ground or slope can both use, and abandon traditional single rope and lift by crane, and the double rope of creative use lifts by crane column switch, makes column switch can steadily rise at lifting by crane the in-process, avoids taking place the unhook problem, guarantees ground operation personnel's personal safety, guarantees the normal clear of column switch installation.

In order to solve the technical problem, the invention provides a lifting appliance for mounting a pole-mounted switch, which comprises an electric pole, wherein a fixed hoop is arranged on the electric pole, a bearing frame is arranged on the fixed hoop, a double-rail fixed pulley is arranged on the bearing frame, a lifting rope is wound on the double-rail fixed pulley, one end of the lifting rope is connected with the pole-mounted switch, the other end of the lifting rope is connected with a hoisting mechanism, and the hoisting mechanism is arranged on the ground.

In a further improvement of the invention, the bearing frame adopts a straight frame or a triangular frame.

Through the design, the manufacturing of the bearing frame of being convenient for more of this scheme, during the use, the effect of weighing of tripod is better, and concrete implementation structure, user depend on the actual weight of column switch and decide.

In a further improvement of the invention, the bearing frame is provided with a wheel shaft, and the wheel shaft is provided with a double-track fixed pulley.

Through the design, the double-track fixed pulley can be more convenient to rotate, and the lifting rope can be better assisted to pass and move.

In a further improvement of the present invention, the double-rail fixed pulley includes a pulley body, and a double-rail groove is disposed on a pulley surface of the pulley body.

Through the design, the scheme can be more convenient for winding the two lifting ropes, and avoids using interference.

In a further improvement of the invention, a lifting rope is wound in each rail groove of the double rail grooves.

Through the design, the scheme can be more convenient for the use interference of the two lifting ropes.

In a further improvement of the invention, one end of the lifting rope is provided with a lifting hook, and the lifting hook is connected with the column switch.

Through the design, the lifting rope and the column switch can be more conveniently disassembled and assembled.

In a further improvement of the invention, the column switch comprises a support frame, one end of the support frame is provided with a fastening hoop, the fastening hoop is connected with an electric pole, the support frame is provided with a column switch body, and the column switch body is connected with a lifting hook.

Through the design, the installation of column switch can be more convenient for to this scheme.

In a further improvement of the invention, the hoisting mechanism adopts a small double-rope hoist.

Through the design, the scheme can be more convenient for reducing research and development cost, realizes productization as soon as possible and generates economic benefit.

A method for pole top switch installation comprising the steps of:

(1) mounting a mounting hanger above a switch on a prepared mounting post on the electric pole;

(2) winding a lifting rope on the double-track fixed pulley, wherein one end of the lifting rope is connected with the hoisting mechanism, and the other end of the lifting rope is provided with a lifting hook;

(3) installing the pole-mounted switch body on a support frame;

(4) loosely connecting the fastening hoop of the support frame to the bottom of the electric pole;

(5) connecting the lifting hook with the column switch;

(6) starting the hoisting mechanism, and pulling the column upper switch to rise by the lifting rope under the driving of the hoisting mechanism;

(7) when the position reaches the switch mounting position on the column, the hoisting mechanism is stopped, and the operator tightens the fastening hoop;

(8) separating the lifting hook from the pole switch, disassembling the lifting appliance from the upper part of the pole for reuse, and finishing the installation of the pole switch.

Through the design, the scheme can be more convenient to implement and install.

Compared with the prior art, the invention has the following beneficial effects:

the invention is specially designed for lifting the pole switch, the scheme has small operation surface and small influence by terrain, can be used on common ground or slope, abandons the traditional single-rope lifting, creatively uses the double-rope lifting pole switch, ensures that the pole switch can stably rise in the lifting process, avoids the unhooking problem, ensures the personal safety of ground operation personnel, and ensures the normal operation of pole switch installation.

Drawings

To more clearly illustrate the background art or the technical solutions of the present invention, the following brief description of the drawings incorporated in the prior art or the detailed description of the present invention; it should be understood that the structures, proportions, and dimensions shown in the drawings and described herein are for illustrative purposes only and are not intended to limit the scope of the present invention, which is to be given the full breadth of the present disclosure, and are not intended to limit the scope of the present disclosure.

FIG. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic diagram of the working principle of the present invention.

FIG. 3 is a schematic view of the double-track fixed pulley structure of the present invention.

Shown in the figure: 1-an electric pole; 2-fixing the anchor ear; 3-a bearing frame; 4-a wheel axle; 5-double-track fixed pulleys; 51-double rail groove; 6-lifting a rope; 7-a support frame; 8-fastening a hoop; 9-pole top switch body; 10-small double-rope winch.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the following will make clear and complete description of the technical solution in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by those skilled in the art without creative efforts based on the embodiments of the present invention shall fall within the protection scope of the present invention.

Meanwhile, the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like referred to in the present specification indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, it is not to be understood that the present invention is limited to changes or adjustments of relative relationships thereof, and also to be considered as a scope in which the present invention can be implemented without substantial technical changes.

Meanwhile, in the description of the present specification, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected", and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other, so that the specific meaning of the terms in the invention can be understood by those skilled in the art through specific situations.

As shown in fig. 1-3, a lifting appliance for installing a column switch comprises an electric pole 1, wherein a fixed hoop 2 is arranged on the electric pole 1, a bearing frame 3 is arranged on the fixed hoop 2, a double-track fixed pulley 5 is arranged on the bearing frame 3, a lifting rope 6 is wound on the double-track fixed pulley 5, one end of the lifting rope 6 is connected with the column switch, the other end of the lifting rope 6 is connected with a hoisting mechanism, and the hoisting mechanism is arranged on the ground.

The bearing frame 3 adopts a straight frame or a triangular frame; the bearing frame 3 is provided with a wheel shaft 4, and the wheel shaft 4 is provided with a double-track fixed pulley 5.

The double-track fixed pulley 5 comprises a pulley body, and a double-track groove 51 is arranged on the surface of the pulley body; a lifting rope 6 is wound in each of the double-rail grooves 51.

And one end of the lifting rope 6 is provided with a lifting hook, and the lifting hook is connected with the column switch.

The pole-mounted switch comprises a support frame 7, wherein one end of the support frame 7 is provided with a fastening hoop 8, the fastening hoop 8 is connected with the electric pole 1, a pole-mounted switch body 9 is arranged on the support frame 7, and the pole-mounted switch body 9 is connected with a lifting hook; the hoisting mechanism adopts a small double-rope hoist 10.

A method for pole top switch installation comprising the steps of:

(1) mounting a mounting hanger above a switch on a prepared mounting post on the electric pole;

(2) winding a lifting rope on the double-track fixed pulley, wherein one end of the lifting rope is connected with the hoisting mechanism, and the other end of the lifting rope is provided with a lifting hook;

(3) installing the pole-mounted switch body on a support frame;

(4) loosely connecting the fastening hoop of the support frame to the bottom of the electric pole;

(5) connecting the lifting hook with the column switch;

(6) starting the hoisting mechanism, and pulling the column upper switch to rise by the lifting rope under the driving of the hoisting mechanism;

(7) when the position reaches the switch mounting position on the column, the hoisting mechanism is stopped, and the operator tightens the fastening hoop;

(8) separating the lifting hook from the pole switch, disassembling the lifting appliance from the upper part of the pole for reuse, and finishing the installation of the pole switch.

The installation of present column switch generally adopts crane single rope hoist and mount, but the crane operation face receives the topography influence greatly easily, meets special topography such as slope crane and can't get into the installation, and crane single rope hoist and mount lifting process is unstable, causes the unhook problem easily, seriously threatens ground operation personnel's personal safety, influences the normal installation of column switch.

Therefore, the design concept of the scheme is to design a simple and convenient installation lifting appliance, the lifting appliance is suitable for various terrain environments, the lifting process is stable, the unhooking accident is avoided, and the personal safety of ground operators is threatened.

The application realizes the reliable, firm, safe and effective installation operation on equipment columns such as boundary switches, section switches, interconnection switches and the like in the current 10kV line engineering, and has the advantages of simple transportation, convenient use and lower cost.

The method comprises the following steps: the fixed hoop of the device is arranged on the upper part of an electric pole (above a prepared column switch), a lifting rope is wound on a double-track fixed pulley, one end of the lifting rope is connected with a hoisting mechanism, a lifting hook at the other end of the lifting rope is placed on the ground, a column switch body is arranged on a support frame, a fastening hoop of the support frame is connected to the bottom of the electric pole, only a connecting bolt for fastening the hoop is connected without screwing, the lifting hook is connected with the column switch (the column switch is actually arranged at the position where the lifting hook is not hung, the lifting hook is connected with the lifting hook) by using a rope, the hoisting mechanism is started, the lifting rope is driven by the hoisting mechanism to slowly lift the column switch to reach the installation position of the column switch, the hoisting mechanism is stopped, an operator screws the fastening hoop, the lifting hook is separated from the column switch The device is disassembled from the upper part of the electric pole for standby, and the pole-mounted switch is mounted.

Although the present invention has been described in detail with reference to the preferred embodiments, the present invention is not limited thereto, and those skilled in the art can make various equivalent modifications or substitutions on the embodiments of the present invention without departing from the spirit and essence of the present invention, and those modifications or substitutions should be considered as being within the scope of the present invention/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present disclosure, and therefore, the scope of the present invention should be determined by the scope of the claims.