CN216649056U - Clamp for live replacement of single-iron cross arm linear cement pole single-string insulator - Google Patents
Clamp for live replacement of single-iron cross arm linear cement pole single-string insulator Download PDFInfo
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- CN216649056U CN216649056U CN202122663130.1U CN202122663130U CN216649056U CN 216649056 U CN216649056 U CN 216649056U CN 202122663130 U CN202122663130 U CN 202122663130U CN 216649056 U CN216649056 U CN 216649056U
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- pulley
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Abstract
The utility model relates to a clamp for replacing a single-string insulator of a single-iron cross arm linear cement pole in a charged manner, which belongs to the technical field of power grid maintenance, and comprises a clamp and a fixed pulley assembly; the clamping device comprises a left clamping plate (1), a right clamping plate (2) and a support plate (3), wherein the left clamping plate (1) and the right clamping plate (2) are respectively and vertically fixed at two ends of the support plate (3); the fixed pulley component comprises a supporting plate (4), a pulley fixing shaft (5) and a fixed pulley (6); the supporting plates (4) are obliquely fixed on the left clamping plate (1), and the pulley fixing shaft (5) is connected between the supporting plates (4); the fixed pulley (6) is rotatably arranged above the support plate (3) through a pulley fixing shaft (5); the single-iron cross arm linear cement pole single-string insulator replacing device has the characteristics of simple structure and convenience in operation, and greatly improves the efficiency of replacing the single-iron cross arm linear cement pole single-string insulator.
Description
Technical Field
The utility model belongs to the technical field of power grid maintenance, and particularly relates to a clamp for replacing a single-string insulator of a single-iron cross arm linear cement pole in a charged manner.
Background
When the linear single-string insulator of the 110 kV power transmission line is replaced in a live-line mode, a ground potential operation method is often adopted for replacement, namely, after an insulating tool and a bearing tool are conveyed to a lead side by a method that an operator stands on a pole tower on the cross arm side of the pole tower and the ground potential phase are equal, the load of the insulator is transferred by the bearing tool to complete replacement of the insulator string.
When the single-iron cross arm linear cement rod insulator string is replaced in an electrified mode by adopting a ground potential operation method, a screw rod-insulating pull plate combined bearing tool is not installed on the iron cross arm due to the fact that the iron cross arm is narrow, and only 3-3 insulating pulley blocks can be used. When the insulating pulley block is used, the pulley hoisting point rope drops to a certain height, so that the insulating safety distance of the pulley block is reduced; meanwhile, safety regulations stipulate that operation can be started by using either two sets of 3-3 insulating pulley blocks or one set of insulating pulley block and one set of wire backup protection rope, but the hoisting point positions of the pulley blocks, the hoisting point positions of the wire backup protection rope and the hoisting point positions of the hoisting point ropes for replacing the insulators are required to be set, so that the single-iron cross arm cannot accommodate so many hoisting point positions, the arrangement of the pulley blocks, the wire backup protection rope, the hoisting ropes for replacing the insulators and the like is disordered during operation, the process of replacing the insulators is difficult, and the operation efficiency is low.
Disclosure of Invention
In order to overcome the problems in the background art, the utility model provides the fixture for replacing the single-iron cross arm linear cement pole string insulator in a charged manner, which has the characteristics of simple structure and convenience in operation, and greatly improves the efficiency of replacing the single-iron cross arm linear cement pole string insulator in a charged manner.
The terms of left and right directions and the like in the present invention are used as a description means for convenience in describing the structure of the present invention, and the present invention is not limited by the terms of the directions in actual use.
In order to realize the purpose, the utility model is realized by the following technical scheme:
the fixture for live replacement of the single-string insulator of the single-iron cross arm linear cement pole comprises a fixture and a fixed pulley component; the clamping device comprises a left clamping plate, a right clamping plate and a support plate, wherein the left clamping plate and the right clamping plate are respectively and vertically fixed at two ends of the support plate; the fixed pulley component comprises a supporting plate, a pulley fixing shaft and a fixed pulley; the supporting plates are obliquely fixed on the left clamping plate, and the pulley fixing shaft is connected between the supporting plates; the fixed pulley passes through the rotatable setting of pulley fixed axle in the upper left side of extension board.
Preferably, the supporting plate is provided with 4 blocks, and the fixed pulleys are provided with 3 blocks.
Preferably, the right clamping plate is provided with an insulating rope hanging rod which is obliquely arranged; the tail end of the insulating rope hanging rod is provided with a hanging hole.
Preferably, the support plate is an isosceles trapezoid plate with a long left side and a short right side.
The utility model has the beneficial effects that:
according to the utility model, by arranging the clamp, a 3-3 pulley block is formed by a pulley on the clamp and a pulley on the wire side by a front ground electrician to be used as a combined tool for transferring the bearing force of the insulator string, when the combined tool is used, a ground potential electrician on the cross arm directly clamps the clamp on the iron cross arm, and after the pulley on the wire side is hooked by the electrician on the tower in a matching way, the ground electrician can realize the replacement of the insulator after tightening an insulating rope of the pulley block to transfer the bearing force of the insulator; by arranging the support plate and the pulley fixing shaft and fixing the pulley fixing shaft on the left clamping plate in an inclined manner, the fixed pulley can be positioned at the upper left of the left clamping plate and cannot be influenced by the iron cross arm during hoisting operation; the insulating rope hanging rod is arranged on the right clamping plate, so that a standby protection rope of a wire can be hung or a lifting rope of an insulator can be replaced, the hanging position of a lifting rope hanging point for hanging the standby protection rope of the wire or replacing the insulator can be standard, and disorder is avoided; by arranging the support plate into an isosceles trapezoid structure with a long left and a short right, the overall weight of the utility model is reduced as much as possible on the basis of more reasonable mechanical structure, and the appearance is uniform and beautiful.
The utility model has the characteristics of simple structure and convenient operation, and can greatly improve the efficiency of replacing the single-string insulator of the single-iron cross arm linear cement pole in a charged manner.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a left side view of the present invention;
in the figure, 1-left clamping plate, 2-right clamping plate, 3-support plate, 4-support plate, 5-pulley fixed shaft, 6-fixed pulley, 7-insulating rope hanging rod and 8-hanging hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to facilitate understanding of the skilled person.
As shown in fig. 1-3, the fixture for live replacement of the single-string insulator of the single-iron cross arm linear cement pole comprises a fixture and a fixed pulley assembly.
The fixture comprises a left clamping plate 1, a right clamping plate 2 and a support plate 3, wherein the left clamping plate 1 and the right clamping plate 2 are respectively and vertically fixed at two ends of the support plate 3. The interval of left cardboard 1 and right cardboard 2 matches with the width phase of iron cross arm, during the use, directly blocks fixedly on the iron cross arm.
The fixed pulley assembly comprises four supporting plates 4, a pulley fixing shaft 5 and three fixed pulleys 6. Four backup pads 4 incline respectively and fix on left cardboard 1, and pulley fixed axle 5 connects between two adjacent backup pads 4, and fixed pulley 6 is fixed through pulley fixed axle 5.
Through the arrangement of the fixed pulley assembly fixed on the left clamping plate 1, the fixed pulley 6 can be positioned above the left side of the support plate 3 after being fixed, and when the fixed pulley 6 is used for lifting, a sufficient avoiding space is provided, so that a rope of a 3-3 pulley block cannot rub and collide with an insulator string.
As an optimal technical scheme, the right clamping plate 2 is provided with an insulating rope hanging rod 7 which is obliquely arranged, and the tail end of the insulating rope hanging rod 7 is provided with a hanging hole 8. Through setting up insulating rope peg 7 for hang the lifting rope of wire reserve protection rope or change insulator, increase the standardization and the convenience of operation.
As another preferred technical scheme, the support plate 3 is an isosceles trapezoid plate with a long left end and a short right end, the widths of the left clamping plate 1 and the right clamping plate 2 are respectively the same as those of the left end and the right end of the support plate 3, the total weight of the support plate is reduced as much as possible on the basis of meeting the force bearing requirement, and the support plate is uniform and attractive in appearance.
As another kind of preferred technical scheme, four backup pads 4 incline upwards respectively and fix on left cardboard 1, take the insulating rope peg 7 slope of hanging hole 8 to upwards fix on right cardboard 2, when effectively avoiding various insulating ropes and insulator friction and collision, effectual increase live working safe distance.
The using method of the utility model demonstrates that:
1. a pole tower electrician carries the insulating lifting rope and the insulating pulley to climb the pole to a specified place;
2. the ground electrician combines the three-wheel movable pulley with an insulating rope to form a 3-3 insulating pulley block, and the insulating pulley block and a wire backup protection rope are transmitted to the pole tower electrician through an insulating lifting rope carried by the pole tower electrician;
3. the pole tower electrician clamps the fixture on the iron cross arm, hooks the wire by the movable pulley, and installs a wire backup protection rope;
4. the ground electrician tightens up the insulating rope of the pulley block and transfers the bearing force of the insulator;
5. the pole tower electrician replaces the insulator and removes the wire back-up protection rope;
6. the ground electrician loosens the insulating rope of the pulley block and transfers the bearing force to the insulator;
7. the pole tower electrician removes the utility model and rents, insulating rope combination with the movable pulley, utilizes insulating lifting rope and insulating coaster to transmit to the ground, carries insulating rope and insulating coaster to lower the tower, accomplishes the work.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the utility model, and that, although the utility model has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the utility model as defined by the appended claims.
Claims (4)
1. The utility model provides a clamp of single string of insulator of single iron cross arm straight line cement pole is changed with electricity which characterized in that: comprises a clamp and a fixed pulley component; the clamping device comprises a left clamping plate (1), a right clamping plate (2) and a support plate (3), wherein the left clamping plate (1) and the right clamping plate (2) are respectively and vertically fixed at two ends of the support plate (3); the fixed pulley component comprises a supporting plate (4), a pulley fixing shaft (5) and a fixed pulley (6); the supporting plates (4) are obliquely fixed on the left clamping plate (1), and the pulley fixing shaft (5) is connected between the supporting plates (4); the fixed pulley (6) is rotatably arranged at the upper left of the support plate (3) through a pulley fixing shaft (5).
2. The fixture for replacing the single-string insulator of the single-iron cross arm linear cement pole in a charged manner according to claim 1, is characterized in that: the supporting plate (4) is provided with 4 blocks, and the fixed pulleys (6) are provided with 3 blocks.
3. The clamp for replacing the single-string insulator of the single-iron cross arm linear cement pole in a charged manner according to claim 1 or 2, is characterized in that: the right clamping plate (2) is provided with an insulating rope hanging rod (7) which is obliquely arranged; the tail end of the insulating rope hanging rod (7) is provided with a hanging hole (8).
4. The clamp for replacing the single-string insulator of the single-iron cross arm linear cement pole in a charged manner according to claim 1, is characterized in that: the support plate (3) is an isosceles trapezoid plate with a long left and a short right.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122663130.1U CN216649056U (en) | 2021-11-02 | 2021-11-02 | Clamp for live replacement of single-iron cross arm linear cement pole single-string insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122663130.1U CN216649056U (en) | 2021-11-02 | 2021-11-02 | Clamp for live replacement of single-iron cross arm linear cement pole single-string insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216649056U true CN216649056U (en) | 2022-05-31 |
Family
ID=81732962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122663130.1U Active CN216649056U (en) | 2021-11-02 | 2021-11-02 | Clamp for live replacement of single-iron cross arm linear cement pole single-string insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216649056U (en) |
-
2021
- 2021-11-02 CN CN202122663130.1U patent/CN216649056U/en active Active
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