CN113700431A - Portable electric power multifunctional maintenance long ladder capable of being folded and extended quickly - Google Patents
Portable electric power multifunctional maintenance long ladder capable of being folded and extended quickly Download PDFInfo
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- CN113700431A CN113700431A CN202110859097.1A CN202110859097A CN113700431A CN 113700431 A CN113700431 A CN 113700431A CN 202110859097 A CN202110859097 A CN 202110859097A CN 113700431 A CN113700431 A CN 113700431A
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- ladder
- blade
- ladder leg
- folding
- leg
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C1/00—Ladders in general
- E06C1/02—Ladders in general with rigid longitudinal member or members
- E06C1/38—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
- E06C1/383—Foldable ladders in which the longitudinal members are brought together on folding
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/50—Joints or other connecting parts
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
The invention discloses a portable electric multifunctional overhaul long ladder capable of being folded and extended quickly, which comprises a plurality of folding ladder sections connected end to end; the folding ladder section comprises ladder rod blades and ladder leg units respectively arranged at two ends of the ladder rod blades; the ladder leg unit comprises a first ladder leg blade, a second ladder leg blade and a third ladder leg blade which are sequentially and movably connected through a transverse movable connecting piece, and the ladder bar blade is connected with one side, far away from the second ladder leg blade, of the third ladder leg blade; when in use, the second ladder leg blade and the third ladder leg blade are turned over along the transverse movable connecting piece to form a U-shaped ladder leg together with the first ladder leg blade; the two first ladder leg blades which are adjacent up and down, the two second ladder leg blades which are adjacent up and down and the two third ladder leg blades which are adjacent up and down are longitudinally and movably connected through longitudinal connecting pieces; after the first ladder leg blade, the second ladder leg blade and the third ladder leg blade are transversely unfolded, two adjacent folding ladder sections are turned over in opposite directions to realize folding.
Description
Technical Field
The invention relates to a portable electric multifunctional overhaul long ladder capable of being folded and extended quickly.
Background
In traditional electric power construction operation, the long ladder is usually used as a climbing tool to complete high-altitude line maintenance, equipment maintenance, instrument and meter data query, meter installation and power connection, tree and bamboo fault removal, fault repair and other work. In actual on-site power construction work, the ladders used are roughly classified into two types according to the types of structures: long ladders and herringbone ladders.
The long ladder is one of the necessary tools of eminence electric power construction operation, has when using shortcomings such as bulky, heavy, carry transportation very inconvenience of weight for the long ladder of manual handling is very difficult, can't satisfy the high requirement of convenient construction operation at all under current conditions such as long distance, narrow passageway, oblique abrupt slope. For example:
1. during the transport, need two people to lift long ladder around, consume the manpower, especially meet and cut down when climbing, the transport is comparatively difficult. The distribution network line is also mainly divided into two parts of rural power grids and urban power grids. In the rural power grid district, the overhead line is mainly positioned in the field and at the mountain head, and the long ladder is inconvenient to carry on the way to a working place and is greatly influenced by weather, road conditions, terrain and the like; in the urban network district, lines and equipment are often located in the deep roadway and narrow road area, and the traditional long ladder which cannot be fully stretched or folded is inconvenient to carry, so that the construction efficiency is affected.
2. When the trees are required to pass through the mountain forest and go to a line operation site, the trees inevitably meet a grass and a tree net, and two people lift the stairs to be unfavorable for walking. Distribution network lines are used as the last kilometer of lines and are distributed widely, a plurality of power line infrastructures are built 10 to 20 years ago, a channel going to the power line is mostly a small path rarely seen by people, the small path is invaded by vines, twigs, weeds and the like, and two people carry a long ladder to cut green and eliminate obstacles or the line is not suitable for overhauling at all.
3. Can solve the trouble caused by inconvenient transportation. There are two general types of electric engineering vehicles in common use: one is a pickup truck engineering vehicle, and the other is a truck type engineering vehicle. If a company dispatches the pickup type electric power engineering vehicle, the risk factors of the vehicle on the way to the operation site are increased because the long ladder cannot be smoothly transported, and the traffic safety becomes a potential risk point; if a truck type electric engineering vehicle is dispatched, the safety problem is solved, but the oil consumption is increased when the truck type electric engineering vehicle reciprocates back and forth, and the production cost is increased for enterprises. The existence of the long ladder can cause the dispatching difficulty and can not reasonably allocate vehicle resources.
Disclosure of Invention
The invention aims to provide a portable electric multifunctional overhaul long ladder capable of being folded and extended quickly, which is small in size after being folded and convenient to carry and carry.
In order to solve the technical problems, the invention provides a portable electric multifunctional overhaul long ladder capable of being folded and extended quickly, which comprises a plurality of folding ladder sections connected end to end; the folding ladder section comprises ladder rod blades and ladder leg units respectively arranged at two ends of the ladder rod blades; the ladder leg unit comprises a first ladder leg blade, a second ladder leg blade and a third ladder leg blade which are sequentially and movably connected through a transverse movable connecting piece, and the ladder bar blade is connected with one side, far away from the second ladder leg blade, of the third ladder leg blade; when in use, the second ladder leg blade and the third ladder leg blade are turned over along the transverse movable connecting piece to form a ladder leg unit with a U-shaped cross section with the first ladder leg blade; the first ladder leg blades of two vertically adjacent folding ladder sections, the second ladder leg blades of two vertically adjacent folding ladder sections and the third ladder leg blades of two vertically adjacent folding ladder sections are longitudinally and movably connected through longitudinal connecting pieces; after the first ladder leg blade, the second ladder leg blade and the third ladder leg blade are transversely unfolded, the two adjacent folding ladder sections are turned over in opposite directions to realize folding.
Further, horizontal swing joint spare is including connecting the first hinge between first ladder leg blade and second ladder leg blade and between second ladder leg blade and the third ladder leg blade respectively, first hinge is 90 hinges, and the concave surface at the ladder leg unit of U font is installed to first hinge correspond one side.
Furthermore, two first pages of the first hinge are respectively provided with four first positioning holes, four first positioning holes are distributed in a rhombic shape, and the distance between the two first positioning holes distributed along the axial direction of the rotating shaft of the first hinge is greater than the distance between the other two first positioning holes.
Further, two groups of longitudinal connecting pieces which are adjacent up and down are respectively connected to the opposite sides of the folding ladder section.
Furthermore, vertical swing joint spare is including connecting two adjacent respectively between the first ladder leg blade of folding bench, two adjacent between the second ladder leg blade of folding bench and two adjacent second hinge between the third ladder leg blade of folding bench, the second hinge is 360 hinges.
Furthermore, four second positioning holes are uniformly formed in two second leaves of the second hinge and distributed in a rhombic shape, and the distance between the two second positioning holes distributed in the axial direction of the rotating shaft of the second hinge is larger than the distance between the other two second positioning holes.
Furthermore, the third ladder leg blade is equipped with spacing breach with ladder rod blade junction, ladder rod blade is fixed in the spacing breach.
Furthermore, the limiting notch is provided with a T-shaped connecting piece, the vertical part of the T-shaped connecting piece is fixedly connected with the third ladder leg blade, and the horizontal part of the T-shaped connecting piece is fixedly connected with the ladder rod blade.
Further, the width of the first ladder leg blade is smaller than the width of the second ladder leg blade and the width of the third ladder leg blade.
The invention has the beneficial effects that: the multifunctional overhaul long ladder is portable after being folded, small in size and does not occupy too large storage space, the requirement of one person for carrying the long ladder can be met after the multifunctional overhaul long ladder is folded, the person for carrying the long ladder can more conveniently walk in the complex road conditions, and the walking efficiency is higher; moreover, the mechanical strength of the ladder is high, the personal safety of operators can be guaranteed, and the novel ladder is not damaged or collapsed. In addition, the long ladder has low price and low manufacturing cost, and can be popularized in a large area.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic structural diagram of an embodiment of the present invention in use;
FIG. 2 is a schematic structural view of an embodiment of the present invention in a folded state;
FIG. 3 is a schematic diagram of one embodiment of the present invention during deployment;
fig. 4 is a schematic structural view of a first hinge according to an embodiment of the present invention.
Wherein: 1. a first ladder leg blade; 2. a second ladder leg blade; 3. a third ladder leg blade; 4. a first hinge; 41. a first sheet; 42. a first positioning hole; 5. a second hinge; 6. ladder stick blades; 7. t-shaped connecting sheet.
Detailed Description
The portable electric multifunctional overhaul long ladder capable of being folded and extended quickly as shown in fig. 1 and 2 comprises a plurality of folding ladder sections connected end to end, wherein each folding ladder section corresponds to one step of ladder; the folding ladder section comprises ladder rod blades 6 and ladder leg units respectively arranged at two ends of the ladder rod blades 6; the ladder leg unit comprises a first ladder leg blade 1, a second ladder leg blade 2 and a third ladder leg blade 3 which are sequentially and movably connected through a transverse movable connecting piece, and the ladder bar blade 6 is connected with one side, far away from the second ladder leg blade 2, of the third ladder leg blade 3; when in use, the second ladder leg blade 2 and the third ladder leg blade 3 are turned over along the transverse movable connecting piece to form a ladder leg unit with a U-shaped cross section with the first ladder leg blade 1; the first ladder leg blades 1 of two adjacent folding ladder sections up and down, the second ladder leg blades 2 of two adjacent folding ladder sections up and down and the third ladder leg blades 3 of two adjacent folding ladder sections up and down are longitudinally and movably connected through longitudinal connecting pieces; when the first ladder leg blade 1, the second ladder leg blade 2 and the third ladder leg blade 3 are transversely unfolded (the unfolded state is shown in fig. 3), two adjacent folding ladder sections are folded in opposite directions to realize folding.
The multifunctional overhaul long ladder is portable after being folded, small in size and does not occupy too large storage space, the requirement of one person for carrying the long ladder can be met after the multifunctional overhaul long ladder is folded, the person for carrying the long ladder can more conveniently walk in the complex road conditions, and the walking efficiency is higher; moreover, the mechanical strength of the ladder is high, the personal safety of operators can be guaranteed, and the novel ladder is not damaged or collapsed. In addition, the long ladder has low price and low manufacturing cost, and can be popularized in a large area.
This overhaul long ladder can extensively be applicable to occasions such as tree bamboo troubleshooting, trouble report and repair, circuit maintenance, dress table connect the electricity, and the time of trouble report and repair, dress table connect the electricity etc. has been saved in folding ladder's use, has reduced manpower resources consumption, has improved work efficiency, for optimizing electric power operator environment, has promoted quality of service and has contributed strength. The access ladder may also be extended to other application areas, such as home use, fire rescue, armed individual tools, upholstery, etc., as desired.
According to an embodiment of the application, the transverse movable connecting piece comprises a first hinge 4 respectively connected between a first ladder leg blade 1 and a second ladder leg blade 2 and between a second ladder leg blade 2 and a third ladder leg blade 3, the first hinge 4 is a 90-degree hinge, and the first hinge 4 is installed on the concave surface of the U-shaped ladder leg unit and on the corresponding side. The first hinge 4 is respectively connected with the back surfaces of the first ladder leg blade 1, the second ladder leg blade 2 and the third ladder leg blade 3 in an unfolded state, and the first ladder leg blade 1, the second ladder leg blade 2 and the third ladder leg blade 3 are kept in a U-shaped cross section shape through the 90-degree hinge for supporting in the process of using the long ladder, so that the ladder leg blades can be folded towards a fixed 90-degree direction to respectively form a stable cuboid ladder column with inwards-arranged lacking surfaces at the left side and the right side; in order to improve the connection strength between the first ladder leg blade 1, the second ladder leg blade 2, and the third ladder leg blade 3, and simultaneously to improve the stability of the kicking unit, a plurality of first hinges 4 may be installed between the first ladder leg blade 1 and the second ladder leg blade 2, and between the second ladder leg blade 2 and the third ladder leg blade 3.
According to an embodiment of the present application, as shown in fig. 4, four first positioning holes 42 are respectively disposed on two first leaves 41 of the first hinge 4, four first positioning holes 42 are distributed in a diamond shape, and a distance between two first positioning holes 42 distributed along the axial direction of the rotating shaft of the first hinge 4 is greater than a distance between the other two first positioning holes 42. The stability of the hinge connection may be enhanced by using first locating holes 42 distributed in a "back-to-back" triangular pattern.
According to one embodiment of the application, two sets of longitudinal connectors, one adjacent to each other, are attached to opposite sides of the ladder sections. For example, the first ladder leg blade 1, the second ladder leg blade 2 and the third ladder leg blade 3 of the folding ladder section (first step ladder) at the bottommost and the second hinge 5 between the first ladder leg blade 1, the second ladder leg blade 2 and the third ladder leg blade 3 of the second step ladder are arranged on the concave surface of the ladder leg unit with the U-shaped cross section, and the first ladder leg blade 1, the second ladder leg blade 2 and the third ladder leg blade 3 of the second step ladder and the second hinge 5 between the first ladder leg blade 1, the second ladder leg blade 2 and the third ladder leg blade 3 of the third step ladder are arranged on the concave surface of the ladder leg unit with the U-shaped cross section, on the opposite side, so that the balanced stress of the hinges can be ensured.
According to an embodiment of the application, the longitudinal movable connecting piece comprises a second hinge 5 which is respectively connected between two adjacent first ladder leg blades 1 of the folding ladder section, between two adjacent second ladder leg blades 2 of the folding ladder section and between two adjacent third ladder leg blades 3 of the folding ladder section, and the second hinge 5 is a 360-degree hinge. By adopting the 360-degree hinge, the ladder can be folded forward and backward in the longitudinal direction after being unfolded, and the volume can be conveniently contracted.
According to an embodiment of the application, equally divide on two second leaves of second hinge 5 and be equipped with four second locating holes respectively, four the second locating hole is rhombus distribution to the distance between two second locating holes along the pivot axial direction distribution of second hinge 5 is greater than the distance between two other second locating holes. The stability of the hinge connection may be enhanced by using first locating holes 42 distributed in a "back-to-back" triangular pattern.
According to an embodiment of the present application, the third ladder leg blade 3 is equipped with spacing breach with ladder rod blade 6 junction, ladder rod blade 6 is fixed in spacing breach. During installation, the ladder rod blades 6 are embedded into the limiting notches of the third ladder leg blades 3 for limiting and fixing, and installation can be facilitated.
According to one embodiment of the application, the limiting notch is provided with a T-shaped connecting piece 7, the vertical part of the T-shaped connecting piece 7 is fixedly connected with the third ladder leg blade 3, and the horizontal part of the T-shaped connecting piece 7 is fixedly connected with the ladder stick blade 6. The ladder rod blades 6 are further fixed by adopting the T-shaped connecting pieces 7, so that the stability between the ladder rod blades 6 and the third ladder leg blades 3 can be ensured.
According to an embodiment of the present application, the width of the first ladder leg blade 1 is smaller than the width of the second ladder leg blade 2 and the third ladder leg blade 3. The second ladder leg blade 2 and the third ladder leg blade 3 can adopt ladder leg blades with the specification of (width) 9cm (length) 40cm (thickness) 3cm, and the first ladder leg blade 1 can adopt ladder leg blades with the specification of (width) 5cm (length) 40cm (thickness) 3 cm.
According to an embodiment of this application, wooden material that this ladder rod blade 6, first ladder leg blade 1, second ladder leg blade 2 and the third ladder leg blade 3 that overhauls long ladder can adopt has certain insulating properties, can satisfy the electric power operation basic requirement who prevents the electric shock, avoids the operation personnel to receive the personal electric shock injury.
Finally, the principle of the service ladder will be described again:
when the maintenance ladder is used, firstly, the second ladder leg blades 2 and the third ladder leg blades 3 on two sides of the expanded maintenance long ladder are turned over along the first hinges 4 to form stable cuboid ladder columns with inward default surfaces with the first ladder leg blades 1; then, taking the kicking unit of the topmost folding ladder section as an upper supporting point, and taking the kicking unit of the bottommost folding ladder section as a lower supporting point; and finally, the ladder can be used like a common long ladder.
When the ladder is folded, the long ladder is unfolded as shown in fig. 3, and then the folding ladder sections are folded along the second hinges 5 in sequence, and the shape of the folded ladder is shown in fig. 2.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (9)
1. A portable electric multifunctional overhaul long ladder capable of being folded and extended quickly is characterized by comprising a plurality of folding ladder sections connected end to end; the folding ladder section comprises ladder rod blades and ladder leg units respectively arranged at two ends of the ladder rod blades; the ladder leg unit comprises a first ladder leg blade, a second ladder leg blade and a third ladder leg blade which are sequentially and movably connected through a transverse movable connecting piece, and the ladder bar blade is connected with one side, far away from the second ladder leg blade, of the third ladder leg blade; when in use, the second ladder leg blade and the third ladder leg blade are turned over along the transverse movable connecting piece to form a ladder leg unit with a U-shaped cross section with the first ladder leg blade; the first ladder leg blades of two vertically adjacent folding ladder sections, the second ladder leg blades of two vertically adjacent folding ladder sections and the third ladder leg blades of two vertically adjacent folding ladder sections are longitudinally and movably connected through longitudinal connecting pieces; after the first ladder leg blade, the second ladder leg blade and the third ladder leg blade are transversely unfolded, the two adjacent folding ladder sections are turned over in opposite directions to realize folding.
2. The fast foldable and extensible portable electric multifunctional overhaul long ladder as claimed in claim 1, wherein the transverse movable connecting piece comprises a first hinge connected between the first ladder leg blade and the second ladder leg blade and between the second ladder leg blade and the third ladder leg blade respectively, the first hinge is a 90-degree hinge, and the first hinge is installed on the corresponding side of the concave surface of the U-shaped ladder leg unit.
3. The multifunctional fast-folding and-stretching portable electric power overhaul long ladder as claimed in claim 2, wherein the two first leaves of the first hinge are respectively provided with four first positioning holes, the four first positioning holes are distributed in a diamond shape, and the distance between the two first positioning holes distributed along the axial direction of the rotating shaft of the first hinge is greater than the distance between the other two first positioning holes.
4. The multi-functional quick-folding and extensible electric power overhaul long ladder as claimed in claim 1, wherein two sets of longitudinal connecting members adjacent to each other up and down are respectively connected to opposite sides of the folding ladder section.
5. The fast folding and unfolding portable electric multifunctional overhaul long ladder according to claim 4, wherein the longitudinal movable connecting pieces comprise second hinges respectively connecting two adjacent first ladder leg blades of the folding ladder sections, two adjacent second ladder leg blades of the folding ladder sections and two adjacent third ladder leg blades of the folding ladder sections, and the second hinges are 360-degree hinges.
6. The fast foldable and extensible portable electric multifunctional service ladder as claimed in claim 5, wherein four second positioning holes are formed in each of the two second leaves of the second hinge, the four second positioning holes are distributed in a diamond shape, and the distance between the two second positioning holes distributed in the axial direction of the rotating shaft of the second hinge is greater than the distance between the other two second positioning holes.
7. The multifunctional fast-folding and-stretching convenient and fast electric power overhaul long ladder as claimed in claim 1, wherein a limiting notch is arranged at the joint of the third ladder leg blade and the ladder stick blade, and the ladder stick blade is fixed in the limiting notch.
8. The fast-folding and extensible portable electric multifunctional overhaul long ladder as claimed in claim 7, wherein the limiting notch is provided with a T-shaped connecting piece, a vertical part of the T-shaped connecting piece is fixedly connected with the third ladder leg blade, and a horizontal part of the T-shaped connecting piece is fixedly connected with the ladder stick blade.
9. The rapidly collapsible, extendable, portable, electrical, multifunctional service ladder of claim 1, wherein the width of the first ladder leg vane is less than the width of the second and third ladder leg vanes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110859097.1A CN113700431B (en) | 2021-07-28 | 2021-07-28 | Portable electric power multifunctional maintenance long ladder capable of being folded and extended quickly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110859097.1A CN113700431B (en) | 2021-07-28 | 2021-07-28 | Portable electric power multifunctional maintenance long ladder capable of being folded and extended quickly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113700431A true CN113700431A (en) | 2021-11-26 |
| CN113700431B CN113700431B (en) | 2023-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110859097.1A Active CN113700431B (en) | 2021-07-28 | 2021-07-28 | Portable electric power multifunctional maintenance long ladder capable of being folded and extended quickly |
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| CN209838274U (en) * | 2019-01-18 | 2019-12-24 | 西安理工大学 | Portable aircraft engine working ladder |
| US20200263495A1 (en) * | 2019-02-20 | 2020-08-20 | Eddie Rafii | Collapsible ladder |
| CN212105704U (en) * | 2020-04-17 | 2020-12-08 | 宁丽霞 | Anti-skidding insulating ladder for electric power engineering |
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2021
- 2021-07-28 CN CN202110859097.1A patent/CN113700431B/en active Active
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| EP0136904A2 (en) * | 1983-09-30 | 1985-04-10 | Reitzer, Joseph | Collapsible ladder |
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| Publication number | Publication date |
|---|---|
| CN113700431B (en) | 2023-03-21 |
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