CN216690944U - Overhead transmission line multipurpose folding maintenance ladder - Google Patents

Abstract

The utility model relates to the technical field of power transmission line maintenance tools, in particular to a multipurpose folding maintenance ladder for an overhead power transmission line, which comprises a vertical ladder and a horizontal ladder, wherein one ends of the vertical ladder and the horizontal ladder are rotatably hinged, the other end of the vertical ladder is detachably connected with a fixed base, and the other end of the horizontal ladder is provided with a first lock hook; the middle section of the vertical ladder is provided with a folding connecting piece, the horizontal ladder comprises a supporting frame and a cross beam, and the supporting frame is formed by splicing a plurality of sections of telescopic rods; the fixed base comprises a bottom plate, a rotary connecting seat is arranged on the bottom plate, adjustable supporting legs are arranged on the bottom surface of the bottom plate, a positioning rope is arranged on the side edge of the bottom plate, and a second locking hook is arranged at the tail end of the positioning rope. The utility model is convenient to store and carry, can be suitable for various working scene terrains, and is more flexible to use.

Description

Overhead transmission line multipurpose folding maintenance ladder

Technical Field

The utility model relates to the technical field of power transmission line maintenance tools, in particular to a multipurpose folding maintenance ladder for an overhead power transmission line.

Background

Traditional overhead transmission line has a power failure and overhauls insulator string and gold utensil operation mode, because do not have special work platform, the staff need follow the transposition of strain insulator string and carry out the operation to the wire side, and easy upset when passing in and out strain insulator string, especially single string strain insulator, staff's physical demands is big, overhauls the operation time long, and operation intensity of labour is high and the potential safety hazard is big.

Current patent CN201520761860.7 discloses a folding maintenance ladder of overhead transmission line multipurpose, including ladder I and ladder II, ladder I and II rotatable coupling of ladder, I free end of ladder is provided with bridging device, bridging device includes connector and couple I, II free ends of ladder are provided with the fixing base, be provided with on the fixing base with II plane looks vertically poles of ladder, the upper end of pole is provided with couple II. Set up two couples through the different positions at two continuous ladders and solved traditional transmission line and overhauld the easy upset of riding strain insulator string that exists, a series of problems that strain insulator composite insulator can not ride, and then guaranteed staff's safety, alleviateed staff's the work degree of difficulty and work load to work efficiency has been improved. However, in practical use, there are some problems: firstly, the ladder is bulky, and inconvenient accomodating and transport are in the face of some special topography, and the ladder is inconvenient fixed, adjusts also to lack the flexibility. This requires improvements to accommodate more scenarios.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a multipurpose folding overhaul ladder for an overhead transmission line, which is convenient to store and carry, can be suitable for various working scene terrains, and is more flexible to use.

In order to solve the technical problems, the utility model adopts the following technical scheme:

a multipurpose folding maintenance ladder for an overhead transmission line comprises a vertical ladder and a horizontal ladder, wherein one ends of the vertical ladder and the horizontal ladder are rotatably hinged, the other end of the vertical ladder is detachably connected with a fixed base, and the other end of the horizontal ladder is provided with a first lock hook; the middle section of the vertical ladder is provided with a folding connecting piece, the horizontal ladder comprises a supporting frame and a cross beam, and the supporting frame is formed by splicing a plurality of sections of telescopic rods; the fixed base comprises a bottom plate, a rotary connecting seat is arranged on the bottom plate, adjustable supporting legs are arranged on the bottom surface of the bottom plate, a positioning rope is arranged on the side edge of the bottom plate, and a second locking hook is arranged at the tail end of the positioning rope.

Furthermore, an insertion groove is formed in the rotating connecting seat, and the tail end of the vertical ladder is detachably inserted into the insertion groove.

Furthermore, a plurality of jacks are correspondingly and respectively arranged on the rotary connecting seat and the bottom plate, the jacks are in a circumferential array, and limit pins are arranged corresponding to the jacks.

Furthermore, the first lock hook comprises a U-shaped lock hook, a threaded fastening rod is arranged between two ends of the U-shaped lock hook, and an anti-skidding gasket is arranged on the inner wall of the U-shaped lock hook.

Furthermore, a locking piece is arranged on the second locking hook, and a spring hinge is arranged between one end of the locking piece and the second locking hook.

The utility model has the beneficial effects that:

in an actual use scene, the placing angle of the fixed base is adjusted according to the terrain condition of the ground, and compared with the prior art that the ladder is directly placed on the ground, the fixed base is more convenient to adjust and fix when facing to some uneven bottom surfaces; the adjustable stabilizer blade of adjustment makes unable adjustment base become stable state, then utilize the location rope to find suitable fixed pile foundation winding on ground after utilizing the second latch hook to detain the rope and fix, insert the cartridge inslot with the bottom of erecting the ladder, then rotate according to required maintenance angle and rotate the connecting seat and make the maintenance ladder reach the best, then fix on the strain insulator string that needs to overhaul with first latch hook after will violently arriving suitable length the horizontal ladder, the staff just can directly ride and sit and carry out the operation on the horizontal ladder. Accomplish the maintenance back, disassemble each part, with the horizontal ladder with erect ladder 1 folding, then loosen folding joint spare, will erect two sections of ladder and fold and accomodate, reduce length, more convenient transport. The utility model is convenient to store and carry, can be suitable for various working scene terrains, and is more flexible to use.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Reference numerals:

1-vertical ladder; 11-a folding connection; 2-horizontal ladder; 21-a support frame; 22-a cross beam; 3-fixing the base; 31-a base plate; 32-rotating the connecting seat; 321-an insertion groove; 322-a jack; 323-a spacing pin; 33-adjustable feet; 34-a positioning rope; 35-a second latch hook; 351-locking piece; 4-a first latch hook; a 41-U-shaped latch hook; 42-a threaded fastening rod; 43-non-slip liner.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.

As shown in fig. 1, the utility model provides a multipurpose folding maintenance ladder for an overhead transmission line, which comprises a vertical ladder 1 and a horizontal ladder 2, wherein one ends of the vertical ladder 1 and the horizontal ladder 2 are rotatably hinged, the other end of the vertical ladder 1 is detachably connected with a fixed base 3, and the other end of the horizontal ladder 2 is provided with a first lock hook 4; the middle section of the vertical ladder 1 is provided with a folding connecting piece 11, the horizontal ladder 2 comprises a support frame 21 and a cross beam 22, and the support frame 21 is formed by splicing a plurality of sections of telescopic rods; the fixing base 3 comprises a bottom plate 31, a rotating connecting seat 32 is arranged on the bottom plate 31, an adjustable supporting leg 33 is arranged on the bottom surface of the bottom plate 31, a positioning rope 34 is arranged on the side edge of the bottom plate 31, and a second locking hook 35 is arranged at the tail end of the positioning rope 34.

An insertion groove 321 is arranged on the rotary connecting seat 32, and the tail end of the vertical ladder 1 is detachably inserted in the insertion groove 321.

In the embodiment, in actual use, the placing angle of the fixed base 3 is adjusted according to the terrain condition of the ground, and compared with the prior art that the ladder is directly placed on the ground, the fixed base 3 is more convenient to adjust and fix when facing to some uneven bottom surfaces; adjustment adjustable stabilizer blade 33 makes unable adjustment base 3 become stable state (wherein adjustable stabilizer blade 33 is common prior art, specific structure does not do here and gives unnecessary details), then utilize location rope 34 to find suitable fixed pile foundation winding back on ground and utilize second latch hook 35 rebate rope to fix, insert the cartridge groove 321 with the bottom of erecting ladder 1 in, then rotate according to required maintenance angle and rotate connecting seat 32 and make the maintenance ladder reach the best, then fix on the strain insulator string that needs to overhaul with first latch hook 4 after stretching to suitable length with horizontal ladder 2, the staff just can directly ride and sit the operation of going on horizontal ladder 2. Accomplish the maintenance back, disassemble each part, with horizontal ladder 2 with erect ladder 1 folding, then loosen folding joint spare 11 (folding joint spare 11 is common prior art, and concrete structure does not do the repeated description here), will erect two sections of ladder 1 and fold and accomodate, reduce length, more convenient transport. This maintenance ladder conveniently accomodates the transport, can be applicable to multiple work scene topography, uses more in a flexible way.

As shown in fig. 1, a plurality of insertion holes 322 are correspondingly and respectively arranged on the rotary connection seat 32 and the bottom plate 31, the insertion holes are in a circumferential array 322, and a limit pin 323 is arranged corresponding to the insertion holes 322; in this embodiment, after will rotating connecting seat 32 and rotating suitable position according to the installation angle that the access ladder needs, utilize spacer pin 323 to run through and insert and rotate in connecting seat 32 and the last jack 322 that corresponds of bottom plate 31, restrict its in use and take place relative rotation, easy operation can conveniently adjust various required angles with the access ladder, compares in prior art direct fixation's mode, meets the condition that special topography restricted base installation angle, and is more practical.

As shown in fig. 1, the first locking hook 4 includes a U-shaped locking hook 41, a threaded fastening rod 42 is disposed between two ends of the U-shaped locking hook 41, and an anti-slip liner 43 is disposed on an inner wall of the U-shaped locking hook 41; in this embodiment, the two ends of the U-shaped locking hook 41 are correspondingly provided with threaded holes, so that the threaded fastening rod 42 can be inserted and locked with the cable conveniently, and the anti-slip liner 43 can increase friction and prevent excessive slip.

As shown in fig. 1, a locking piece 351 is disposed on the second locking hook 35, and a spring hinge is disposed between one end of the locking piece 351 and the second locking hook 35; in this embodiment, the second locking hook 35 is used for locking after the positioning rope 34 is wound around the pile foundation, and the locking piece 351 prevents unhooking.

All technical features in the embodiment can be subjected to appearance modification according to actual needs.

The above embodiments are preferred implementations of the present invention, and besides, the present invention can be implemented in other ways, and any obvious substitutions without departing from the concept of the present invention are within the protection scope of the present invention.

Claims (5)

1. The utility model provides an overhead transmission line multipurpose folding maintenance ladder which characterized in that: the novel ladder comprises a vertical ladder (1) and a horizontal ladder (2), wherein one end of the vertical ladder (1) is rotatably hinged with one end of the horizontal ladder (2), the other end of the vertical ladder (1) is detachably connected with a fixed base (3), and the other end of the horizontal ladder (2) is provided with a first lock hook (4);

the middle section of the vertical ladder (1) is provided with a folding connecting piece (11), the horizontal ladder (2) comprises a support frame (21) and a cross beam (22), and the support frame (21) is formed by splicing a plurality of sections of telescopic rods;

the fixing base (3) comprises a bottom plate (31), a rotating connecting seat (32) is arranged on the bottom plate (31), adjustable supporting legs (33) are arranged on the bottom surface of the bottom plate (31), a positioning rope (34) is arranged on the side edge of the bottom plate (31), and a second locking hook (35) is arranged at the tail end of the positioning rope (34).

2. The multipurpose folding access ladder for overhead transmission lines of claim 1, characterized in that: an insertion groove (321) is formed in the rotary connecting seat (32), and the tail end of the vertical ladder (1) is detachably inserted into the insertion groove (321).

3. The multipurpose folding access ladder for overhead transmission lines of claim 1, characterized in that: a plurality of insertion holes (322) are correspondingly and respectively arranged on the rotary connecting seat (32) and the bottom plate (31), the insertion holes (322) are in a circumferential array, and limit pins (323) are arranged corresponding to the insertion holes (322).

4. The multipurpose folding access ladder for overhead transmission lines of claim 1, characterized in that: the first lock hook (4) comprises a U-shaped lock hook (41), a threaded fastening rod (42) is arranged between two ends of the U-shaped lock hook (41), and an anti-skid gasket (43) is arranged on the inner wall of the U-shaped lock hook (41).

5. The multipurpose folding access ladder for overhead transmission lines of claim 1, characterized in that: and a locking piece (351) is arranged on the second locking hook (35), and a spring hinge is arranged between one end of the locking piece (351) and the second locking hook (35).

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