CN211692275U - Transmission line overhauls uses extension ladder - Google Patents

Transmission line overhauls uses extension ladder Download PDF

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Publication number
CN211692275U
CN211692275U CN202020059879.8U CN202020059879U CN211692275U CN 211692275 U CN211692275 U CN 211692275U CN 202020059879 U CN202020059879 U CN 202020059879U CN 211692275 U CN211692275 U CN 211692275U
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ladder
leg
legs
layer
transmission line
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CN202020059879.8U
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Chinese (zh)
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黄金龙
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黄金龙
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Abstract

The utility model belongs to the field of power transmission overhaul tools, in particular to an extension ladder for overhauling a power transmission line, which comprises a pair of vertical bottom ladder legs, a plurality of pairs of middle ladder legs and a pair of top ladder legs which are parallel left and right, and a plurality of horizontal pedal crossbeams fixedly connected between the upper ends of the pairs of ladder legs; the lower end of the bottom ladder leg is fixedly connected with a blind plate, a base plate is arranged below the blind plate, the lower part of the base plate is fixedly connected with an anti-skid pad, and the blind plate and the base plate can be rotationally connected back and forth through a hinged part; the bottom ladder leg and the middle ladder leg are telescopically sleeved and connected, and a telescopic clamping button is fixedly connected inside the lower end of the middle ladder leg; the middle ladder leg and the top ladder leg are telescopically sleeved and connected, and a clamping button is fixedly connected inside the lower end of the top ladder leg; the middle ladder legs of each middle layer are also telescopically sleeved and connected; the upper ends of the top ladder legs are fixedly connected with hooks, and grooves are formed in the middle of the pedal cross beam at the top end; the telescopic ladder is telescopic, light and portable, is additionally provided with a series of anti-skidding insulation measures, and is higher in safety.

Description

Transmission line overhauls uses extension ladder
Technical Field
The utility model belongs to transmission of electricity examines and repair the instrument field, concretely relates to transmission line overhauls uses extension ladder.
Background
At present, power supply is basically not available for all industries in the society, once a power transmission line breaks down, daily life, study and work of people can be seriously influenced, the timeliness of power transmission maintenance is very important, and maintenance electricians can possibly need to carry out fault treatment on site anytime and anywhere. The transmission of electricity cable adopts the overhead line mostly, and the line overhauls the operation of need ascending a height usually, often can use the cat ladder, but present general ladder is too long, and it is all not very convenient to carry the transport, and the ladder must all take on the electric wire or on the wire pole when overhauing in addition, and the ladder has the hidden danger of taking place the slippage laterality, still has certain electric shock risk, and transmission line overhauls and has very high danger.
SUMMERY OF THE UTILITY MODEL
In order to the above situation, the utility model provides a transmission line overhauls uses extension ladder, scalable, it is light and handy portable, still add and be equipped with a series of anti-skidding insulation measure, the safety in utilization is higher.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a telescopic ladder for power transmission line maintenance comprises a pair of vertical bottom-layer ladder legs, a plurality of pairs of middle-layer ladder legs and a pair of top-layer ladder legs which are parallel left and right, and a plurality of horizontal pedal cross beams fixedly connected between the upper ends of each pair of ladder legs; a pair of blind plates are fixedly connected to the lower ends of the bottom layer ladder legs, a base plate is arranged below the blind plates, an anti-slip pad is fixedly connected to the lower portion of the base plate, and the blind plates and the base plate can be connected in a front-back rotating mode through hinged portions; the inner wall of the upper part of the bottom ladder leg is telescopically sleeved and connected with the outer wall of the lower part of the middle ladder leg, and a telescopic clamping button is fixedly connected inside the lower end of the middle ladder leg; the inner wall of the upper part of the middle ladder leg is telescopically sleeved and connected with the outer wall of the lower part of the top ladder leg, and the clamping button is fixedly connected inside the lower end of the top ladder leg; each pair of middle ladder legs are also telescopically sleeved and connected through the clamping buttons; the upper ends of the top ladder legs are fixedly connected with a pair of hooks bent backwards, and the middle part of one pedal beam at the top end is bent forwards to form a groove.
Preferably, the hinge part comprises a right-angle n-shaped hinge female part fixedly connected with the lower surface of the blind plate and a hinge male part fixedly connected with the upper surface of the base plate and matched with the upper surface of the base plate, and the hinge female part and the hinge male part are movably connected through a screw pin; the base anchor is rotatable articulated, and the base anchor rotates corresponding angle along with the ground topography, makes things convenient for ladder and ground to laminate better.
Preferably, the clamping button comprises a cylindrical cavity and a ball plunger positioned in the cylindrical cavity, the top end of the cylindrical cavity is fixedly connected with a top ring fixedly connected with the ladder leg in a matched threaded manner, a circle of clamping boss matched with the top ring is fixedly arranged on the ball plunger, a compression spring is sleeved below the ball plunger, a blocking plate fixedly connected with the cylindrical cavity in a threaded manner is arranged below the compression spring, and the side wall of the upper end of each ladder leg is also provided with a clamping through hole protruding from the matched ball plunger; when the ladder needs to be drawn out for use, and the ball head plunger is aligned to the clamping through hole, the ball head plunger can automatically extend out of the clamping through hole under the action of the compression spring, so that the upper ladder leg and the lower ladder leg are clamped together; when the telescopic ladder is used and needs to be contracted, the ball plunger is pressed into the clamping through hole, and the upper ladder leg and the lower ladder leg can be contracted by pressing the upper ladder leg downwards.
Preferably, the hook is a semicircular hook and is welded with the top end of the top ladder leg, a rubber sleeve is fitted and sleeved on the periphery of the semicircular hook, and knurled anti-skid patterns are arranged on the surface of the rubber sleeve; when the upper end of the ladder is used by being placed on an electric wire, the semicircular hook is hung and buckled on the electric wire, and the rubber sleeve can prevent the ladder from slipping and deviating laterally and plays an insulating role at the same time.
Preferably, the groove is a V-shaped groove, the inner side of the V-shaped groove is adhered with a rubber strip, and the surface of the rubber strip is provided with knurled anti-skid grains; when the upper end of the ladder is used by being placed against a telegraph pole, the inner side of the V-shaped groove is buckled on the telegraph pole in a surrounding mode, the rubber strips can prevent the ladder from slipping and deviating laterally, and meanwhile the insulation effect is achieved.
Preferably, the anti-slip pad is a rubber gasket, the rubber gasket is glued with the base plate, and the surface of the rubber gasket is provided with knurled anti-slip lines; the rubber gasket can prevent the ladder from slipping off and plays an insulating role at the same time.
Preferably, the upper surface of the pedal beam is laid with a rubber anti-skid layer, and the surface of the rubber anti-skid layer is provided with knurled anti-skid lines; the climbing personnel can prevent the foot from slipping when stepping on the foot, and avoid the occurrence of bruising and bruising.
The utility model discloses still including enabling this transmission line to overhaul other subassemblies with extension ladder normal use, be the conventional technical means in this field, in addition, each ladder leg and crossbeam all adopt aluminum alloy light section bar, all adopt the conventional technical means in this field.
The utility model has the advantages as follows:
this transmission line overhauls uses extension ladder, it is scalable that middle joint button can realize the ladder length, light and handy portable transport of weight improves maintenance work efficiency, bottom baseboard adds establishes the rotatable articulated and ground laminating contact of rubber pad, the top couple adds establishes rubber sleeve and recess and adds establishes the rubber strip and can hang the knot on the electric wire or enclose to detain on the wire pole, can prevent effectively that the ladder slippage side deviation, supplementary has insulating effect, pedal crossbeam adds establishes the skid resistant course, the security of ladder is improved in the progress.
Drawings
Fig. 1 is a schematic structural view of an extended state of the extension ladder according to the embodiment.
Fig. 2 is a schematic structural view of the telescopic ladder of the embodiment in a contracted state.
Fig. 3 is a schematic structural view of the hinge in fig. 1.
Fig. 4 is a schematic structural view of the snap button in fig. 1.
Fig. 5 is a schematic view of the structure of the hook and the groove in fig. 1.
Detailed Description
The technical solution of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and obviously, the described embodiments are only some embodiments of the present invention, not all embodiments.
Examples
As shown in fig. 1-5, an extension ladder for power transmission line maintenance comprises a pair of vertical bottom-layer ladder legs 1, a plurality of pairs of middle-layer ladder legs 2, a pair of top-layer ladder legs 3 which are parallel left and right, and a plurality of horizontal pedal cross beams 4 fixedly connected between the upper ends of each pair of ladder legs; a pair of blind plates 101 are fixedly connected to the lower ends of the bottom layer ladder legs 1, a base plate 102 is arranged below the blind plates 101, an anti-skid pad 103 is fixedly connected to the lower portion of the base plate 102, and the blind plates 101 and the base plate 102 can be connected in a front-back rotating mode through a hinge portion 104; the inner wall of the upper part of the bottom ladder leg 1 is telescopically sleeved and connected with the outer wall of the lower part of the middle ladder leg 2, and a telescopic clamping button 105 is fixedly connected inside the lower end of the middle ladder leg 2; the inner wall of the upper part of the middle ladder leg 2 is telescopically sleeved and connected with the outer wall of the lower part of the top ladder leg 3, and the clamping button 105 is also fixedly connected inside the lower end of the top ladder leg 3; each pair of middle ladder legs 2 in the middle are also telescopically sleeved and connected through the clamping buttons 105; a pair of hooks 301 bent backwards are fixedly connected to the upper ends of the pair of top ladder legs 3, and the middle part of one of the pedal crossbeams 4 at the top end is bent forwards to form a groove 302.
The hinge part 104 comprises a right-angle n-shaped hinge female part 106 fixedly connected with the lower surface of the blind plate 101 and a hinge male part 107 fixedly connected with the upper surface of the base plate 102 and matched with the upper surface of the base plate, and the hinge female part 106 and the hinge male part 107 are movably connected through a screw pin 108; the base plate 102 is rotatably hinged, and the base plate 102 rotates by a corresponding angle along with the terrain of the ground, so that the ladder is convenient to be better attached to the ground.
The clamping button 105 comprises a cylindrical cavity 109 and a ball plunger 110 positioned in the cylindrical cavity, the top end of the cylindrical cavity 109 is fixedly connected with a top ring 111 fixedly connected with ladder legs in a matched threaded manner, a circle of clamping bosses 112 matched with the top ring 111 are fixedly arranged on the ball plunger 110, a compression spring 113 is sleeved below the ball plunger 110, a blocking plate 114 fixedly connected with the cylindrical cavity 109 in a threaded manner is arranged below the compression spring 113, and the side wall of the upper end of each ladder leg is also provided with a clamping through hole 115 matched with the projection of the ball plunger 110; when the ladder needs to be drawn out for use, when the ball plunger 110 is aligned to the clamping through hole 115, the ball plunger 110 can automatically extend out of the clamping through hole 115 under the action of the compression spring 113, so that the upper ladder leg and the lower ladder leg are clamped together; when the telescopic ladder is used and needs to be contracted, the ball plunger 110 is pressed into the clamping through hole 115, and the upper ladder leg and the lower ladder leg can be contracted by pressing the upper ladder leg downwards.
The hook 301 is a semicircular hook and is welded with the top end of the top layer ladder leg 3, a rubber sleeve 303 is fitted and sleeved on the periphery of the semicircular hook, and knurled anti-skid patterns are arranged on the surface of the rubber sleeve 303; when the upper end of the ladder is used by being placed on an electric wire, the semicircular hook is hung and buckled on the electric wire, the rubber sleeve 303 can prevent the ladder from slipping and deviating laterally, and meanwhile, the insulating effect is achieved.
The groove 302 is a V-shaped groove, the inner side of the V-shaped groove is adhered with a rubber strip 304, and the surface of the rubber strip 304 is provided with knurled anti-skid grains; when the upper end of the ladder is used by being placed against a telegraph pole, the inner side of the V-shaped groove is buckled on the telegraph pole in a surrounding mode, the rubber strips 304 can prevent the ladder from slipping and deviating laterally, and meanwhile the insulation effect is achieved.
The anti-skid pad 103 is a rubber gasket, the rubber gasket is glued with the base anchor 102, and the surface of the rubber gasket is provided with knurled anti-skid grains; the rubber gasket can prevent the ladder from slipping off and plays an insulating role at the same time.
The upper surface of the pedal beam 4 is coated with a rubber anti-skid layer, and the surface of the rubber anti-skid layer is provided with knurled anti-skid lines; the climbing personnel can prevent the foot from slipping when stepping on the foot, and avoid the occurrence of bruising and bruising.
Having thus described embodiments of the present invention, the foregoing description is intended to be illustrative, not exhaustive, and not limited to the embodiments disclosed, and many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims (7)

1. The utility model provides a transmission line overhauls uses extension ladder which characterized in that: comprises a pair of vertical bottom-layer ladder legs (1), a plurality of pairs of middle-layer ladder legs (2) and a pair of top-layer ladder legs (3) which are parallel to each other at the left and right, and a plurality of horizontal pedal cross beams (4) which are fixedly connected between the upper ends of each pair of ladder legs; a pair of blind plates (101) are fixedly connected to the lower ends of the bottom layer ladder legs (1), a floor plate (102) is arranged below the blind plates (101), an anti-skid pad (103) is fixedly connected to the lower portion of the floor plate (102), and the blind plates (101) and the floor plate (102) are connected in a front-back rotating mode through a hinge portion (104); the inner wall of the upper part of the bottom ladder leg (1) is telescopically sleeved and connected with the outer wall of the lower part of the middle ladder leg (2), and a telescopic clamping button (105) is fixedly connected inside the lower end of the middle ladder leg (2); the inner wall of the upper part of the middle-layer ladder leg (2) is telescopically sleeved and connected with the outer wall of the lower part of the top-layer ladder leg (3), and the clamping button (105) is also fixedly connected inside the lower end of the top-layer ladder leg (3); each pair of middle ladder legs (2) in the middle are also telescopically sleeved and connected through the clamping buttons (105); a pair of hooks (301) which are bent backwards are fixedly connected to the upper ends of the top layer ladder legs (3), and the middle part of one pedal cross beam (4) at the top end is bent forwards to form a groove (302).
2. The extension ladder for power transmission line maintenance according to claim 1, characterized in that: the hinge part (104) comprises a right-angle n-shaped hinge female part (106) fixedly connected with the lower surface of the blind plate (101) and a hinge male part (107) matched with the blind plate and fixedly connected with the upper surface of the base plate (102), and the hinge female part (106) is movably connected with the hinge male part (107) through a screw pin (108).
3. The extension ladder for power transmission line maintenance according to claim 1, characterized in that: the clamping button (105) comprises a cylindrical cavity (109) and a ball plunger (110) located in the cylindrical cavity, a top ring (111) fixedly connected with ladder leg matching threads is fixedly connected to the top end of the cylindrical cavity (109), a clamping boss (112) matched with the top ring (111) in a circle is fixedly arranged on the ball plunger (110), a compression spring (113) is sleeved below the ball plunger (110), a blocking plate (114) fixedly connected with the cylindrical cavity (109) in a threaded manner is arranged below the compression spring (113), and a clamping through hole (115) matched with the ball plunger (110) in a protruding mode is further formed in the side wall of the upper end of each ladder leg.
4. The extension ladder for power transmission line maintenance according to claim 1, characterized in that: couple (301) are semi-circular couple, with top layer ladder leg (3) top welding together, and semi-circular couple peripheral laminating cover is equipped with rubber sleeve (303), and rubber sleeve (303) surface is provided with annular knurl antiskid line.
5. The extension ladder for power transmission line maintenance according to claim 1, characterized in that: the groove (302) is a V-shaped groove, the inner side of the V-shaped groove is glued with a rubber strip (304), and the surface of the rubber strip (304) is provided with knurled anti-slip patterns.
6. The extension ladder for power transmission line maintenance according to claim 1, characterized in that: the anti-skid pad (103) is a rubber gasket, the rubber gasket is connected with the base anchor (102) in a gluing mode, and knurled anti-skid grains are arranged on the surface of the rubber gasket.
7. The extension ladder for power transmission line maintenance according to claim 1, characterized in that: the upper surface of the pedal cross beam (4) is provided with a rubber anti-skid layer, and the surface of the rubber anti-skid layer is provided with knurled anti-skid lines.
CN202020059879.8U 2020-01-13 2020-01-13 Transmission line overhauls uses extension ladder Active CN211692275U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020059879.8U CN211692275U (en) 2020-01-13 2020-01-13 Transmission line overhauls uses extension ladder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020059879.8U CN211692275U (en) 2020-01-13 2020-01-13 Transmission line overhauls uses extension ladder

Publications (1)

Publication Number Publication Date
CN211692275U true CN211692275U (en) 2020-10-16

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112593837A (en) * 2020-12-17 2021-04-02 海南电网有限责任公司儋州供电局 Portable telescopic hanging ladder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112593837A (en) * 2020-12-17 2021-04-02 海南电网有限责任公司儋州供电局 Portable telescopic hanging ladder

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