CN218479783U

CN218479783U - Steel pipe tower overhauls supplementary ladder

Info

Publication number: CN218479783U
Application number: CN202221655468.0U
Authority: CN
Inventors: 许�鹏; 谢水土; 朱传利; 余福忠; 余德平; 汪静华; 郭锦程
Original assignee: Kaihua Power Supply Co Of State Grid Zhejiang Electric Power Co ltd
Current assignee: Kaihua Power Supply Co Of State Grid Zhejiang Electric Power Co ltd
Priority date: 2022-06-28
Filing date: 2022-06-28
Publication date: 2023-02-14
Anticipated expiration: 2032-06-28

Abstract

The utility model discloses a steel pipe tower overhauls supplementary ladder belongs to the maintenance instrument, including the body frame, the body frame includes horizontal pole and montant, and a plurality of branch that are parallel to each other are all installed to the both sides of montant, installs the fastener that is used for detaining on steel pipe tower cat ladder or steel pipe tower cross arm on the horizontal pole, is equipped with the fastener opening that is used for through steel pipe tower cat ladder or steel pipe tower cross arm on the fastener, and the fastener rotates to be connected on the horizontal pole; a foldable pedal structure is arranged between two adjacent supporting rods which are positioned on the same side of the vertical rod; the fastener can be detained on steel-pipe tower cat ladder or steel-pipe tower cross arm, makes supplementary ladder even if be convenient for the steel-pipe tower to climb, backup pad when also can be used to the maintenance, has solved prior art, and during the steel-pipe tower was overhauld, the climbing process is unsafe, and special supplementary ladder can't be used for old-fashioned steel-pipe tower again, leads to the problem that maintenance process security reduces.

Description

Steel pipe tower overhauls supplementary ladder

Technical Field

The utility model relates to an overhaul the instrument, especially relate to a steel-pipe tower overhauls supplementary ladder.

Background

In general, in order to ensure safe operation of a line, a power line steel pipe tower is specified at the time of factory shipment: in order to prevent children or other persons from randomly climbing the tower and damaging the power line, the ladder stand of the steel tube tower is required to be higher than the ground by one person. According to statistics, the average installation height of the crawling ladder of the transmission line steel pipe tower in the development area is 2 m. The common vertical ladder is arranged below the ladder stand of the steel tube tower, the ladder head is close to the rod body, and the ladder and the ground form an angle of 60 degrees, so that the distance between the ladder stand and the ground is shortened through the ladder, and workers can conveniently climb; or the safety belt is sleeved into two rings, one side of the safety belt is hung on the handrail of the ladder stand, and the other side of the safety belt is used for the worker to step on the ladder stand. However, the common ladder is inconvenient to carry and fix, and the safety belt climbing method is not safe enough, so that an auxiliary ladder convenient for a maintainer to use is needed.

For example, the chinese patent document discloses "an electric power steel pipe tower with an auxiliary ladder", which is disclosed in CN215520747U, and includes a steel pipe tower, an upper ladder mechanism provided on the steel pipe tower, and an auxiliary ladder mechanism provided on the upper ladder mechanism; the ascending ladder mechanism comprises an ascending ladder rod, a holding plate arranged on the ascending ladder rod, an arc-shaped table arranged on the holding plate, a fixing component arranged on the ascending ladder rod, a dustproof component arranged on the ascending ladder rod and a limiting component arranged on the ascending ladder rod; the disadvantage of this patent lies in, because its supplementary ladder is installed on the steel pipe tower, still has the risk of being used by irrelevant personnel to, every steel pipe tower all need install this supplementary ladder can realize the effect, can lead to cost increase, and, can't play the effect to the current steel pipe tower that exists already.

SUMMERY OF THE UTILITY MODEL

The utility model relates to an overcome prior art, when the steel-pipe tower overhauld, the climbing process is unsafe, and special supplementary ladder can't be used for old steel-pipe tower again, lead to the problem that maintenance process security reduces, a steel-pipe tower overhauls supplementary ladder is provided, can not only improve the security of climbing steel-pipe tower, can also regard as the protection platform in the maintenance process, security when improving the maintenance, be more applicable to old, overhaul the maintenance process of the lower steel-pipe tower of security.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model discloses, a steel pipe tower overhauls supplementary ladder, including the body frame, the body frame includes horizontal pole and montant, and a plurality of branch that are parallel to each other are all installed to the both sides of montant, installs the fastener that is used for detaining on steel pipe tower cat ladder or steel pipe tower cross arm on the horizontal pole, is equipped with the fastener opening that is used for through steel pipe tower cat ladder or steel pipe tower cross arm on the fastener, and the fastener rotates to be connected on the horizontal pole; a foldable pedal structure is arranged between two adjacent supporting rods on the same side of the vertical rod.

The auxiliary ladder is convenient to install on the steel tube tower so as to facilitate upward climbing of maintainers, and is high in safety and strong in applicability; and, when the maintainer need stand and overhaul on the steel-pipe tower cross arm, the fastener of this application supplementary ladder can rotate to the position parallel with the horizontal pole to detain on the cross arm, and can warp supplementary ladder through expanding collapsible footboard structure, as the backup pad that can supply to trample, thereby improve the security of maintainer when overhauing, because old steel-pipe tower safeguard measure is less, can improve the security of overhauing greatly through the supplementary ladder that uses this application.

Preferably, the foldable pedal structure comprises a plurality of foldable units, the foldable units are connected end to end, one of the foldable units is connected with the fixing rod, the foldable units can be unfolded or folded by taking the fixing rod as an original point through the structure, so that the foldable pedal structure cannot influence the treading of the supporting rod when the ladder stand of the steel tube tower is climbed, and the foldable pedal structure can be used as the supporting plate to improve the overhauling safety in the overhauling process.

Preferably, the folding unit comprises a limiting hinge rod, a pedal blade, a free hinge rod and a pedal blade which are sequentially connected, the pedal blade, the free hinge rod and the limiting hinge rod are rotatably connected, a limiting groove is formed in the support rod, and two ends of the limiting hinge rod are located in the limiting groove; when the limiting hinge rod moves in the limiting groove, the included angle between the adjacent pedal blades can be changed, so that the folding or unfolding of the folding unit is realized.

Preferably, the foldable pedal structure further comprises a pull rope for unfolding the foldable pedal structure, a winding wheel for winding the pull rope is installed in the vertical rod, and a torsion spring for resetting the pull rope is arranged on the winding wheel; can drive collapsible footboard expansion through the pulling stay cord, and loosen the stay cord after, under the torsional spring effect, the stay cord can reset to accomplish the folding of collapsible footboard structure.

Preferably, the pull rope is provided with a fixed knot, and the fixed knot is arranged on one of the limiting hinged rods in the foldable pedal structure.

Preferably, one end of the pull rope is provided with a pull rope locking head, and after the foldable pedal structure is completely unfolded, the pull rope locking head can be fixed, so that the foldable pedal structure is kept in an unfolded state.

Preferably the clip comprises an arcuate ladder support portion and a planar cross arm support portion.

Preferably, the bottom of the vertical rod is provided with a fixed head which is used for contacting with the ground to form a support when climbing.

Preferably, the auxiliary ladder further comprises a protective rope, a protective rope fixing part is arranged on the fixing head, one end of the protective rope is fixed on the protective rope fixing part, and the other end of the protective rope is fixed on the maintenance clothes of maintenance personnel; when climbing the cat ladder of steel-pipe tower, the maintainer can stimulate the protection rope, makes supplementary ladder upwards turn up to pack up in hand, when overhauing, the protection rope can play the safety protection effect to the maintainer, avoids the maintainer to fall because of the accident.

Therefore, the utility model discloses following beneficial effect has: (1) The safety of climbing the steel tube tower can be improved, the steel tube tower can be used as a protection platform in the maintenance process, the safety in maintenance is improved, and the steel tube tower maintenance platform is more suitable for the maintenance process of the old steel tube tower with lower maintenance safety; (2) When climbing the cat ladder of steel pipe tower, the maintainer can stimulate the protection rope, makes supplementary ladder upwards turn-up to pack up in hand, when overhauing, the protection rope can play the safety protection effect to the maintainer, avoids the maintainer to fall because of the accident.

Drawings

Fig. 1 is a schematic structural diagram of the ladder stand assisting device.

Fig. 2 is a schematic structural diagram of the utility model used as a support plate when the steel pipe tower is overhauled.

Fig. 3 is a schematic cross-sectional view of the foldable pedal structure of the present invention in a top view.

Fig. 4 is a schematic structural view of the fastener of the present invention.

In the figure: 1. the device comprises a cross rod 2, a vertical rod 3, a protective rope 4, a support rod 5, a steel pipe tower ladder stand 6, a steel pipe tower cross arm 7, a fastener 8, a fastener opening 9, a ladder stand supporting part 10, a cross arm supporting part 11, a fixing head 12, a protective rope fixing part 13, a limiting hinge rod 14, pedal blades 15, a free hinge rod 16, an auxiliary fastener 17, a limiting groove 18, a pull rope 19, a winding wheel 20 and a pull rope lock head.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description.

In the embodiment shown in fig. 1-4, an auxiliary ladder for overhauling a steel pipe tower comprises a main frame, wherein the main frame comprises a cross rod 1, a vertical rod 2 and a protective rope 3, a plurality of mutually parallel support rods 4 are respectively installed on two sides of the vertical rod, in the embodiment, three support rods which are bilaterally symmetrical are respectively installed on two sides of the vertical rod, a fastener 7 which is used for being buckled on a ladder stand 5 of the steel pipe tower or a cross arm 6 of the steel pipe tower is installed on the cross rod, the shape of the fastener is approximate to a C shape, a fastener opening 8 which is used for passing through the ladder stand of the steel pipe tower or the cross arm of the steel pipe tower is arranged on the fastener, the fastener further comprises an arc ladder stand supporting part 9 and a plane cross arm supporting part 10, and the fastener is rotatably connected on the cross rod; the bottom of the vertical rod is provided with a fixing head 11, the fixing head is provided with a protective rope fixing part 12, one end of the protective rope is fixed on the protective rope fixing part, and the other end of the protective rope is fixed on maintenance clothes of maintenance personnel; a foldable pedal structure is arranged between two adjacent supporting rods which are positioned on the same side of the vertical rod; the foldable pedal structure comprises a plurality of folding units which are connected end to end, wherein one folding unit is connected with the fixed rod; the folding unit comprises a limiting hinge rod 13, a pedal blade 14, a free hinge rod 15 and a pedal blade which are connected in sequence, and the pedal blade is rotationally connected with the free hinge rod and the limiting hinge rod; the supporting rod is divided into an upper supporting rod, a middle supporting rod and a lower supporting rod from top to bottom, an auxiliary fastener 16 which is the same as the fastener in shape is arranged on the lower supporting rod, and the auxiliary fastener is the same as the fastener of the auxiliary ladder when used as a supporting plate in direction; the strut is provided with a limiting groove 17, the limiting groove of the upper strut is positioned at the lower side of the strut, the limiting groove of the lower strut is positioned at the upper side of the strut, the upper side and the lower side of the middle strut are both provided with limiting grooves, two ends of the limiting hinge rod are positioned in the limiting grooves, in the embodiment, the number of the folding units is three, and the cross section of each limiting groove is T-shaped; the foldable pedal structure also comprises a pull rope 18 for unfolding the foldable pedal structure, the pull rope is positioned in the middle support rods at two sides, a winding wheel 19 for winding the pull rope is arranged in the vertical rod, and a torsion spring for resetting the pull rope is arranged on the winding wheel; the pull rope is provided with a fixed knot which is arranged on one of the limiting hinged rods in the foldable pedal structure; one of the end of stay cord is equipped with stay cord tapered end 20, and the outer end of upside branch is equipped with the lockhole with stay cord tapered end adaptation, and in this embodiment, is equipped with the external screw thread on the stay cord tapered end, and the lockhole is the screw hole of adaptation with it.

When the maintainer need climb the steel pipe tower and overhaul, aim at downside cat ladder with the fastener opening of supplementary ladder earlier, then hang supplementary ladder on the cat ladder, then put subaerially with the fixed head of supplementary ladder bottom to accomplish the fixed of supplementary ladder, the maintainer climbs the back on the cat ladder through supplementary ladder, and one hand will assist the ladder through the protection rope and turn up, then holds the montant and will assist the ladder and take off the back of the body on the cat ladder.

When a maintainer is positioned on a cross arm of the steel tube tower and needs to overhaul; pulling out the pull rope locks at the two sides of the middle supporting rod, and installing the pull rope locks into the lock holes of the upper supporting rod for fixing, wherein at the moment, the foldable pedal structure is unfolded to form a supporting plate; aligning and buckling the openings of the fasteners of the auxiliary ladder with the two parallel cross arms, and buckling the openings of the auxiliary fasteners on the two cross arms, so that the auxiliary ladder is arranged between the two cross arms, and an maintainer can step on the foldable pedal structure for maintenance; after the maintenance is finished, the pull rope lock head is withdrawn from the lock hole, and the foldable pedal structure can be folded again.

Claims

1. The auxiliary ladder for the maintenance of the steel pipe tower comprises a main frame and is characterized in that the main frame comprises a cross rod and a vertical rod, a plurality of mutually parallel support rods are arranged on two sides of the vertical rod, a fastener used for being buckled on a ladder stand of the steel pipe tower or a cross arm of the steel pipe tower is arranged on the cross rod, a fastener opening used for being buckled on the ladder stand of the steel pipe tower or the cross arm of the steel pipe tower is formed in the fastener, and the fastener is rotatably connected to the cross rod; a foldable pedal structure is arranged between two adjacent supporting rods which are positioned on the same side of the vertical rod.

2. The steel tube tower maintenance auxiliary ladder as claimed in claim 1, wherein the foldable pedal structure comprises a plurality of folding units, the folding units are connected end to end, and one of the folding units is connected with the fixing rod.

3. The steel tube tower overhauling auxiliary ladder as recited in claim 2, wherein the folding unit comprises a limiting hinge rod, a pedal blade, a free hinge rod and a pedal blade which are connected in sequence, the pedal blade, the free hinge rod and the limiting hinge rod are rotatably connected, a limiting groove is arranged on the support rod, and two ends of the limiting hinge rod are positioned in the limiting groove.

4. The auxiliary ladder for overhauling the steel pipe tower as claimed in claim 3, wherein the foldable pedal structure further comprises a pull rope for unfolding the foldable pedal structure, a winding wheel for winding the pull rope is installed in the vertical rod, and a torsion spring for resetting the pull rope is arranged on the winding wheel.

5. The steel tube tower maintenance auxiliary ladder as claimed in claim 4, wherein the pull rope is provided with a fixed knot, and the fixed knot is mounted on one of the limit hinged rods in the foldable pedal structure.

6. The auxiliary ladder for steel tube tower overhaul as claimed in claim 4, wherein a pull rope lock is provided at one end of the pull rope.

7. The steel tube tower maintenance auxiliary ladder of claim 1, wherein the fastener comprises an arc ladder support part and a planar cross arm support part.

8. The auxiliary ladder for overhauling the steel tube tower as recited in any one of claims 1 to 7, wherein a fixing head is installed at the bottom of the vertical rod.

9. The auxiliary ladder for steel tube tower maintenance of claim 8, further comprising a protective rope, wherein the fixing head is provided with a protective rope fixing part, one end of the protective rope is fixed on the protective rope fixing part, and the other end of the protective rope is fixed on maintenance clothes of maintenance personnel.