CN213980609U

CN213980609U - Ladder head for power maintenance

Info

Publication number: CN213980609U
Application number: CN202022482492.6U
Authority: CN
Inventors: 谭晓; 陈健成; 谈嘉炎
Original assignee: Jiangmen Electric Power Engineering Power Transmission And Transformation Co ltd
Current assignee: Jiangmen Electric Power Engineering Power Transmission And Transformation Co ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-08-17
Anticipated expiration: 2030-10-30

Abstract

The utility model relates to an electric wire maintenance technical field discloses a ladder head for power maintenance, including hanging ladder body, a pulley, fixed block and movable block, the left side pole setting and the right side pole setting of hanging ladder body are equipped with first couple and second couple respectively, the pulley is equipped with two and rotationally sets up at first couple and second couple respectively, the periphery of two pulleys is equipped with the spout with cable sliding fit, the fixed block is equipped with two, the one end of two fixed blocks respectively with the top of first couple and the top fixed connection of second couple, the movable block is equipped with two, the one end of two movable blocks rotates with the other end of two fixed blocks respectively and is connected and fix through locking mechanical system, the end of movable block is equipped with the rubber pad, when the movable block passes through locking mechanical system to be fixed on the fixed block, the cable is hugged closely to the perpendicular downward and rubber pad of movable block. The utility model has the advantages of can lock on the cable, make and hang ladder bearing back stable motionless, the security is high, and need not readjustment station, the operating efficiency is high.

Description

Ladder head for power maintenance

Technical Field

The utility model relates to an electric wire maintenance technical field especially relates to a ladder head for power maintenance.

Background

In an electric power system, a plurality of devices such as cables, transformers and the like need to be installed and maintained in the open air, under many conditions, maintenance personnel need to hang an insulating hanging ladder on the cables to climb to a specific height for operation, but a rope ladder is usually hung below the existing insulating hanging ladder, the weight of the rope ladder and the weight of the insulating hanging ladder are added with the weight of operating personnel, so that the cables are pulled downwards under the action of gravity, the sag of the cables is increased, the insulating hanging ladder is easy to slide left and right during climbing and operation of the operating personnel, two ropes need to be configured to pull the insulating hanging ladder during the whole operation, the accidents of falling of the personnel at high altitude due to the fact that the insulating hanging ladder slides out of control and even the personnel are injured and killed due to the fact that the insulating hanging ladder slides and collides with other electrified devices are prevented, the labor cost is increased, and after the insulating hanging ladder slides on the cables, operators need to spend a great deal of time on station adjustment, and the operation efficiency is low; in addition, operating personnel need hang the ladder through bare-handed control insulation and shift the station in the operation process, but because the insulation is hung the ladder and the friction of cable is great, relatively hard when leading to shifting the station, and produce great wearing and tearing to the cable.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the utility model provides a ladder head for power maintenance, can lock on the cable, make hang ladder bearing after stable motionless, the security is high, and need not readjustment station, the operating efficiency height.

In order to solve the technical problem, the utility model provides a ladder head for power maintenance, which comprises a ladder hanging body, pulleys, fixed blocks and movable blocks, wherein the top end of the left side vertical rod of the ladder hanging body is provided with a first hook used for hanging on a cable, the top end of the right side vertical rod of the ladder hanging body is provided with a second hook used for hanging on the cable, the pulleys are provided with two pulleys and are respectively and rotatably arranged in the first hook and the second hook, the peripheries of the two pulleys are provided with chutes in sliding fit with the cable, the fixed blocks are provided with two, one ends of the two fixed blocks are respectively and fixedly connected with the top end of the first hook and the top end of the second hook, the movable blocks are provided with two, one ends of the two movable blocks are respectively and rotatably connected with the other ends of the two fixed blocks and are fixed through a locking mechanism, the tail ends of the movable blocks are provided with rubber pads, when the movable block is fixed on the fixed block through the locking mechanism, the movable block vertically faces downwards, and the rubber pad is tightly attached to the cable.

As the utility model discloses preferred scheme, the fixed block with a side that the movable block is connected is the inclined plane of top-down to the pulley direction slope.

As the utility model discloses preferred scheme, locking mechanical system includes reference column and extension spring, the reference column one end with the movable block or the fixed block rotates to be connected, the fixed block or be equipped with on the movable block with the locating hole of the other end joint of reference column, the reference column with during the locating hole connection, the movable block is perpendicular downwards, extension spring sets up the fixed block with between the movable block.

As the utility model discloses preferred scheme, locking mechanical system includes stand and regulating plate, the regulating plate one end with the movable block rotates to be connected, be equipped with on the regulating plate with the via hole of stand joint, the via hole is followed the length direction interval of regulating plate is equipped with a plurality ofly.

As the utility model discloses preferred scheme, the fixed block level orientation hang the outside setting of ladder body.

As the preferred scheme of the utility model, the orientation of the stiff end of first couple with the orientation of the stiff end of second couple is opposite.

As the preferred proposal of the utility model, the movable block is provided with a handle.

The embodiment of the utility model provides a ladder head for power maintenance compares with prior art, and its beneficial effect lies in:

when the hanging ladder is used, the movable block is swung to enable the movable block to vertically downwards and fixed on the fixed block through the locking mechanism, the ladder head is hung on a cable, the cable is located in the sliding groove of the pulley, the rubber pad is tightly attached to the cable, the hanging ladder is stable and does not move after bearing under the friction action of the rubber pad and the cable, the self-locking of the hanging ladder is realized, an operator crawls along the hanging ladder or works after the self-locking of the hanging ladder, the hanging ladder is guaranteed not to automatically slide on the cable, the safety is high, the station does not need to be adjusted again, and the working efficiency is high; when the station needs to be shifted, an operator only needs to swing the movable block to enable the rubber pad to be away from the cable and fixed on the fixed block through the locking mechanism, the self-locking state of the hanging ladder is relieved, the pulley rolls along the cable to move the hanging ladder by hand, the hanging ladder is convenient to move, load and unload, and abrasion to the cable is small.

Drawings

Fig. 1 is a schematic structural diagram of a ladder head for power maintenance provided by an embodiment of the present invention;

in the figure, 1, a ladder body is hung; 2. a pulley; 3. a fixed block; 4. a movable block; 5. a cable; 6. A rubber pad; 7. a positioning column; 8. an extension spring; 9. a first hook; 10. and a second hook.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, which indicate the orientation or positional relationship, are used in the present invention as being based on the orientation or positional relationship shown in the drawings, and are used only for convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1, a preferred embodiment of a ladder head for power maintenance according to a preferred embodiment of the present invention comprises a ladder body 1, pulleys 2, fixed blocks 3 and movable blocks 4, wherein a first hook 9 for hanging on a cable is provided at the top end of a left side vertical rod of the ladder body 1, a second hook 10 for hanging on a cable is provided at the top end of a right side vertical rod of the ladder body 1, the pulleys 2 are provided with two and rotatably provided in the first hook 9 and the second hook 10 respectively, a sliding groove slidably engaged with the cable 5 is provided at the outer periphery of the two pulleys 2, the fixed blocks 3 are provided with two, one end of each of the two fixed blocks 3 is fixedly connected with the top end of the first hook 9 and the top end of the second hook 10 respectively, the movable block 4 is provided with two, one end of each of the two movable blocks 4 is rotatably connected with the other end of each of the two fixed blocks 3 and fixed by a locking mechanism, the tail end of the movable block 4 is provided with a rubber pad 6, when the movable block 4 is fixed on the fixed block 3 through the locking mechanism, the movable block 4 vertically faces downwards, and the rubber pad 6 is tightly attached to the cable 5.

Illustratively, one side surface of the fixed block 3 connected with the movable block 4 is an inclined surface inclined towards the direction of the pulley 2 from top to bottom; therefore, when the locking state of the ladder head needs to be relieved, an operator swings the movable block 4 inwards to separate the rubber pad 6 from the cable 5, the phenomenon that the operator easily falls under the action of inertia when swinging the movable block 4 outwards is avoided, and safety is improved.

Illustratively, the locking mechanism comprises a positioning column 7 and an extension spring 8, one end of the positioning column 7 is rotatably connected with the movable block 4 or the fixed block 3, a positioning hole clamped with the other end of the positioning column 7 is arranged on the fixed block 3 or the movable block 4, when the positioning column 7 is connected with the positioning hole, the movable block 4 is vertically downward, and the extension spring 8 is arranged between the fixed block 3 and the movable block 4; therefore, when the ladder head needs to be locked, an operator swings the movable block 4 outwards until the rubber pad 6 is tightly attached to the cable 5, swings the positioning column 7 to clamp the tail end of the positioning column 7 on the positioning hole, at the moment, the extension spring 8 is in a stretching state, and the movable block 4 is vertically downward; when the station needs to be transferred, an operator swings the positioning column 7 to enable the positioning column 7 to be away from the positioning hole, and then swings the movable block 4 inwards to enable the movable block 4 to swing under the action of the restoring force of the extension spring 8 until the movable block 4 abuts against the fixed block 3, so that the rubber pad 6 is away from the cable 5; wherein, through extension spring 8's setting for movable block 4 supports all the time and leans on the side at fixed block 3 under extension spring 8's effect.

Illustratively, the locking mechanism comprises a stand column and an adjusting plate, one end of the adjusting plate is rotatably connected with the movable block 4, a plurality of through holes clamped with the stand column are formed in the adjusting plate, and the through holes are arranged at intervals along the length direction of the adjusting plate; therefore, preferably, one side surface where the fixed block 3 and the movable block 4 are connected is a vertical surface or an inclined surface which is inclined to the direction of the pulley 2 from top to bottom, when the ladder head needs to be locked, an operator swings the movable block 4 inwards or outwards until the rubber pad 6 is tightly attached to the cable 5, the swinging adjusting plate inserts the upright posts onto the corresponding through holes, so that the movable block 4 is fixed, and at the moment, the movable block 4 is vertically downward; when the station needs to be transferred, an operator pulls out the stand column from the through hole, swings the movable block 4 outwards or inwards, and the swing adjusting plate inserts the stand column into the corresponding through hole, so that the movable block 4 is fixed, and the rubber pad 6 is separated from the cable 5.

For example, the fixing block 3 is horizontally arranged towards the outer side of the hanging ladder body 1; therefore, the fixed block 3 is prevented from interfering the operator in the operation process of the operator.

Illustratively, the orientation of the fixed end of the first hook 9 is opposite to the orientation of the fixed end of the second hook 10: therefore, the ladder head can be prevented from unhooking when falling to one side, and the safety is high.

Illustratively, in order to facilitate the operator to swing the movable block 4, a handle is arranged on the movable block 4.

When the hanging ladder is used, the movable block 4 is swung inwards or outwards to enable the movable block to be vertically downward, the tail end of the positioning column 7 is clamped on the positioning hole or the vertical column is inserted on the corresponding through hole through the swing positioning column 7, the movable block 4 is fixed on the fixed block 3, the ladder head is hung on the cable 5, the cable 5 is located in the sliding groove of the pulley 2, the rubber pad 6 is tightly attached to the cable 5, the hanging ladder is stable and does not move after bearing under the friction action of the rubber pad 6 and the cable 5, the self-locking of the hanging ladder is realized, an operator climbs along the hanging ladder or works after the self-locking of the hanging ladder, the hanging ladder is ensured not to automatically slide on the cable 5, the safety is high, the station does not need to be adjusted again, and the working efficiency is high; when the station needs to be shifted, an operator only needs to swing the movable block 4 to enable the rubber pad 6 to be far away from the cable 5 originally, the positioning column 7 and the positioning hole are separated or the stand column is extracted from the through hole by swinging the positioning column 7, the movable block 4 swings outwards or inwards again, the movable block 4 always supports against the side face of the fixed block 3 or a swing adjusting plate to be inserted in the corresponding through hole under the action of the extension spring 8, the movable block 4 is fixed and enables the rubber pad 6 and the cable 5 to be separated, the self-locking state of the hanging ladder is relieved, the pulley 2 rolls along the cable 5 by hands to move the hanging ladder, the hanging ladder is convenient to move and load and unload, and the abrasion generated on the cable 5 is small.

In the description of the present invention, it is to be understood that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are used in a generic sense, e.g., fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. A ladder head for power maintenance is characterized by comprising a ladder hanging body, pulleys, fixed blocks and movable blocks, wherein a first hook used for hanging on a cable is arranged at the top end of a left side vertical rod of the ladder hanging body, a second hook used for hanging on the cable is arranged at the top end of a right side vertical rod of the ladder hanging body, the pulleys are provided with two pulleys and are respectively and rotatably arranged in the first hook and the second hook, sliding chutes in sliding fit with the cable are formed in the peripheries of the two pulleys, the fixed blocks are provided with two fixed blocks, one ends of the two fixed blocks are respectively and fixedly connected with the top end of the first hook and the top end of the second hook, the movable blocks are provided with two movable blocks, one ends of the two movable blocks are respectively and rotatably connected with the other ends of the two fixed blocks and are fixed through a locking mechanism, and rubber pads are arranged at the tail ends of the movable blocks, when the movable block is fixed on the fixed block through the locking mechanism, the movable block vertically faces downwards, and the rubber pad is tightly attached to the cable.

2. The ladder head for power maintenance as claimed in claim 1, wherein a side surface where the fixed block and the movable block are connected is an inclined surface inclined in a direction of the pulley from top to bottom.

3. The ladder head for power maintenance as claimed in claim 2, wherein the locking mechanism includes a positioning column and a tension spring, one end of the positioning column is rotatably connected to the movable block or the fixed block, the fixed block or the movable block is provided with a positioning hole which is clamped with the other end of the positioning column, when the positioning column is connected to the positioning hole, the movable block is vertically downward, and the tension spring is disposed between the fixed block and the movable block.

4. The ladder head for power maintenance of claim 1, wherein the locking mechanism comprises a column and an adjusting plate, one end of the adjusting plate is rotatably connected with the movable block, a plurality of through holes are formed in the adjusting plate, the through holes are clamped with the column, and the plurality of through holes are formed in the adjusting plate at intervals along the length direction of the adjusting plate.

5. The ladder head for power maintenance as claimed in claim 1, wherein the fixing block is horizontally disposed toward an outside of the ladder hanging body.

6. The ladder head for power maintenance of claim 1 wherein the fixed end of the first hook is oriented in an opposite direction to the fixed end of the second hook.

7. The ladder head for power maintenance of claim 1 wherein the movable block is provided with a handle.