CN111691812A - Portable protection device for high-altitude power maintenance - Google Patents
Portable protection device for high-altitude power maintenance Download PDFInfo
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- CN111691812A CN111691812A CN202010519491.6A CN202010519491A CN111691812A CN 111691812 A CN111691812 A CN 111691812A CN 202010519491 A CN202010519491 A CN 202010519491A CN 111691812 A CN111691812 A CN 111691812A
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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
- E06C1/34—Ladders attached to structures, such as windows, cornices, poles, or the like
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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
- E06C1/397—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 characterised by having wheels, rollers, or runners
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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
- E06C7/18—Devices for preventing persons from falling
- E06C7/186—Rail or rope for guiding a safety attachment, e.g. a fall arrest system
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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
- E06C7/505—Anchors being adapted to fix a ladder to a vertical structure, e.g. ladder hooks
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Ladders (AREA)
Abstract
The invention provides a portable protective device for high-altitude power maintenance, which comprises a ladder stand, wherein two clamping mechanisms are symmetrically arranged at the upper end of the ladder stand. According to the invention, the two clamping mechanisms are arranged at the upper part of the ladder stand, the two winding mechanisms are clockwise rotated through the handles on the one-way gear, so that the lower ends of the two steel wire ropes are respectively wound on the inner side peripheral surfaces of the two winding mechanisms, the two clamping mechanisms are respectively and linearly pulled towards opposite directions by the upper ends of the two steel wire ropes, then the upper part of the ladder stand is erected on the cylindrical telegraph pole, and then the pull columns on the two first limiting slide blocks are clamped on the clamp buckles, so that the one-way gear loses the limiting effect, and the two clamping mechanisms are clamped and fixed on the cylindrical telegraph pole under the action of the first spring, so that the upper part of the ladder stand is not easy to swing, and further the safety of the.
Description
Technical Field
The invention belongs to the technical field of power maintenance, and particularly relates to a portable protective device for overhead power maintenance.
Background
The work high above the ground generally means work high above the ground, and means work performed by a person at a height with reference to a certain position. The national standard GB/T3608 + 2008 "Classification of high altitude operations": "work at a high place where there is a possibility of falling at a height of 2m or more (including 2 m) from the falling height reference surface is called high place work. "according to this definition, the range of work at high altitudes is fairly broad in the construction industry. When the operation is performed in a building, the operation is performed on a frame with the length of more than 2m, namely the high-altitude operation.
For example, application No.: the invention relates to the technical field of power maintenance equipment, in particular to a safe ladder stand suitable for power maintenance, which comprises a first vertical rod, a second vertical rod, a plurality of cross rods arranged at intervals, a first fastening nut, a first fastening bolt, a second fastening nut, a second fastening bolt, a third fastening nut, a third fastening bolt, an anti-swing device, an anti-skid rubber layer and a fixed tail rope. The safety crawling ladder suitable for power maintenance provided by the invention is not only provided with the anti-swing device which can be attached to the arc surface so as to ensure that the safety crawling ladder can be stably erected on cylindrical objects such as telegraph poles and the like; and a plurality of groups of fastening bolts and fastening nuts are arranged to reinforce the safety ladder so as to ensure that the safety ladder is not easy to fall apart.
Based on the above patent search, and in combination with the prior art device discovery, a ladder is usually needed for power maintenance personnel during overhead power maintenance. The existing ladder stand has the following defects in the actual use process, such as: 1. because the existing ladder stand is lack of an effective protection mechanism, the electric power maintenance personnel can fall from the ladder stand carelessly when climbing the ladder stand, and further can hurt the electric power maintenance personnel; 2 current cat ladder is when setting up cylindrical wire pole, because cat ladder upper portion lacks effectual fixed knot structure for the steadiness is relatively poor when the cat ladder uses, especially when the operation alone, takes place the hunting phenomenon very easily, and then has reduced the security of cat ladder when using.
Disclosure of Invention
In order to solve the technical problems, the invention provides a portable protection device for overhead power maintenance, which aims to solve the following defects of the existing ladder stand in the actual use process, such as: 1. because the existing ladder stand is lack of an effective protection mechanism, the electric power maintenance personnel can fall from the ladder stand carelessly when climbing the ladder stand, and further can hurt the electric power maintenance personnel; 2 current cat ladder is when setting up cylindrical wire pole, because cat ladder upper portion lacks effectual fixed knot structure for the steadiness is relatively poor when the cat ladder uses, especially when the operation alone, takes place the hunting phenomenon very easily, and then has reduced the problem of the security of cat ladder when using.
The invention relates to a portable protective device for high-altitude power maintenance, which is realized by the following specific technical means:
a portable protective device for high-altitude power maintenance comprises a ladder stand, wherein two clamping mechanisms are symmetrically arranged at the upper end of the ladder stand, the clamping mechanism also comprises a clamping disc, a T-shaped sliding rod, a first spring and a limiting sliding column, a T-shaped rotating shaft is arranged at the center of the right end face of the clamping mechanism, and the clamping mechanism is rotationally connected with a clamping disc through a T-shaped rotating shaft, the central part of the left end surface of the clamping disc is provided with a T-shaped rotating groove rotationally connected with the T-shaped rotating shaft, the central part of the right end surface of the clamping disc is fixedly connected with a T-shaped sliding rod, and the outside of the T-shaped slide bar is sleeved with a first spring, the right end surface of the clamping disc is symmetrically provided with two limiting slide bars, the right end of the T-shaped sliding rod is fixedly connected with the upper end of the steel wire rope, a limiting sliding column is arranged on the upper portion of the right end face of the clamping mechanism, and a cambered surface anti-slip rubber block is adhered to the left end face of the clamping mechanism; a group of pulley mechanisms are respectively arranged on the upper parts of the left end surface and the right end surface of the crawling ladder; the lower parts of the left end surface and the right end surface of the crawling ladder are respectively provided with a winding mechanism, and a steel wire rope is wound on the winding mechanisms; each winding mechanism is provided with a first limiting mechanism; the front end face of the crawling ladder is connected with a protection mechanism in a sliding mode, and a second limiting mechanism is arranged on the right side of the protection mechanism.
The ladder stand further comprises L-shaped supports, dovetail chutes, steel wire rope limiting blocks and rectangular clamping grooves, wherein the dovetail chutes are formed in the left side and the right side of the front end face of the ladder stand, seventeen rectangular clamping grooves are uniformly formed in the rear side face inside the right dovetail chute, the rear end face of the upper portion of the ladder stand is fixedly connected with the two L-shaped supports in a bilateral symmetry manner, the two steel wire rope limiting blocks connected with the steel wire rope in a sliding manner are arranged on the left end face and the right end face of the ladder stand, four cambered anti-skid rubber blocks are uniformly adhered on the rear end face of each L-shaped support, handles with two ends distributed in a ninety-degree bending manner downwards are arranged at the upper end of the ladder stand, two rollers distributed in a bilateral symmetry manner are arranged on the front end face of the lower portion of the ladder;
furthermore, an annular plate is arranged on one circle outside the clamping disc, an eighth annular sliding chute connected with a T-shaped sliding rod in a sliding mode is formed in the upper portion of the left end face of the annular plate, and when the clamping mechanism and the crawling ladder are in an installation state, the T-shaped sliding rod and the limiting sliding rod are connected with the L-shaped support in a sliding mode;
the pulley mechanism further comprises a first pulley and a second pulley, the first pulley is mounted on one side face of the L-shaped support through a support, the second pulley is mounted on one side face of the upper end of the ladder stand through a support, the second pulley and the first pulley are connected with the steel wire rope in a sliding mode, and the included angle between the left end face of the second pulley and the right end face of the ladder stand is forty-five degrees;
furthermore, the winding mechanism also comprises a one-way gear, the central parts of the left and right end faces of the winding mechanism are fixedly connected with a rotating shaft, the outside of the winding mechanism is rotatably connected with a bracket arranged on a handle on one side of the crawling ladder through the two rotating shafts, the upper part of the bracket outside the winding mechanism is provided with a first limiting mechanism, the right end of the rotating shaft on the right side of the winding mechanism is fixedly connected with the one-way gear, and the edge part of the right end face of the one-way gear is provided with a rotating;
furthermore, the first limiting mechanism further comprises a first limiting slide block, a second spring and a buckle, the first limiting slide block is connected inside the first limiting mechanism in a sliding mode, a strip-shaped sliding opening is formed in one side face of the first limiting mechanism, the second spring is installed inside the first limiting mechanism, one side face of the first limiting mechanism, which is located on two sides of the strip-shaped sliding opening, is provided with the buckle, one side face of the first limiting slide block is provided with a pull column connected with the strip-shaped sliding opening in a sliding mode, a front side edge angle of the lower end of the first limiting slide block is set to be a round angle, and when the first limiting mechanism and the winding mechanism are in an installation state, the lower end of the first limiting slide block is in close contact with one-way teeth of;
furthermore, the protection mechanism also comprises a connecting rod, dovetail sliding blocks, connecting bands and a safety belt, wherein the left end and the right end of the connecting rod are respectively provided with one dovetail sliding block, the front part of the connecting rod is connected with the safety belt through the two connecting bands, the upper end surface of one dovetail sliding block on the right side is provided with a second limiting mechanism, and when the protection mechanism and the ladder stand are in an installation state, the two dovetail sliding blocks are respectively connected with the two dovetail sliding grooves in a sliding manner;
furthermore, the second limiting mechanism further comprises a second limiting slide block, a pull rod and a third spring, the second limiting slide block is connected inside the second limiting mechanism in a sliding mode, the center of the front end face of the second limiting slide block is fixedly connected with the pull rod which penetrates through the front side of the second limiting mechanism, the third spring which is located inside the second limiting mechanism is sleeved outside the pull rod, a handle is arranged at the front end of the pull rod, the upper side edge of the rear end of the second limiting slide block is set to be a round angle, and when the second limiting mechanism is in a limiting state, the rear end of the second limiting slide block is located in one of the rectangular clamping grooves and tightly attached to the rear side face inside the rectangular clamping groove.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the two clamping mechanisms are arranged at the upper part of the ladder stand, the two winding mechanisms are clockwise rotated through the handles on the one-way gear, so that the lower ends of the two steel wire ropes are respectively wound on the inner side peripheral surfaces of the two winding mechanisms, the two clamping mechanisms are respectively and linearly pulled towards opposite directions by the upper ends of the two steel wire ropes, then the upper part of the ladder stand is erected on the cylindrical telegraph pole, and then the pull columns on the two first limiting slide blocks are clamped on the clamp buckles, so that the one-way gear loses the limiting effect, and the two clamping mechanisms are clamped and fixed on the cylindrical telegraph pole under the action of the first spring, so that the upper part of the ladder stand is not easy to swing, and further the safety of the.
According to the safety belt, through the matching of the protection mechanism and the second limiting mechanism, when the electric power maintainer falls off from the crawling ladder, the safety belt rapidly pulls the connecting rod and the two dovetail slide blocks downwards through the connecting belt, and then the electric power maintainer is pulled by the safety belt through the limiting function that the second limiting slide block cannot slide downwards, so that the electric power maintainer is effectively prevented from falling off from the crawling ladder, and the electric power maintainer cannot be injured.
Drawings
Fig. 1 is a schematic axial view of the present invention.
Fig. 2 is a schematic view of the ladder stand structure of the present invention.
Fig. 3 is a schematic structural view of the clamping mechanism of the present invention in a disassembled state.
FIG. 4 is a partial cross-sectional structural schematic view of the clamping disk of the present invention.
Fig. 5 is a schematic view of the present invention at a part enlarged in fig. 1.
Fig. 6 is a schematic structural diagram of the winding mechanism and the first limiting mechanism of the invention.
Fig. 7 is a partial sectional structural schematic view of a second limiting mechanism of the present invention.
Fig. 8 is a partial enlarged structural view of the invention at B in fig. 7.
In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
1. climbing a ladder; 101. an L-shaped bracket; 102. a dovetail chute; 103. a steel wire rope limiting block; 104. a rectangular clamping groove; 2. a clamping mechanism; 201. clamping the disc; 202. a T-shaped slide bar; 203. a first spring; 204. a limiting sliding column; 3. a pulley mechanism; 301. a first pulley; 302. a second pulley; 4. a wire rope; 5. a winding mechanism; 501. a one-way gear; 6. a first limit mechanism; 601. a first limit slide block; 602. a second spring; 603. buckling; 7. a protection mechanism; 701. a connecting rod; 702. a dovetail slide block; 703. a connecting belt; 704. a lap belt; 8. a second limiting mechanism; 801. a second limit slide block; 802. a pull rod; 803. and a third spring.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in figures 1 to 8:
the invention provides a portable protective device for high-altitude power maintenance, which comprises: the ladder stand 1 is provided with two clamping mechanisms 2 symmetrically at the upper end of the ladder stand 1, each clamping mechanism 2 further comprises a clamping disc 201, a T-shaped sliding rod 202, a first spring 203 and a limiting sliding column 204, a T-shaped rotating shaft is arranged at the center of the right end face of each clamping mechanism 2, each clamping mechanism 2 is rotatably connected with the clamping disc 201 through the T-shaped rotating shaft, a T-shaped rotating groove rotatably connected with the T-shaped rotating shaft is formed in the center of the left end face of each clamping disc 201, the T-shaped sliding rod 202 is fixedly connected with the center of the right end face of each clamping disc 201, the first spring 203 is sleeved outside each T-shaped sliding rod 202, two limiting sliding rods are symmetrically arranged at the right end face of each clamping disc 201, the right end of each T-shaped sliding rod 202 is fixedly connected with the upper end of a steel wire rope 4, the limiting sliding column 204 is arranged at the upper part of the right end face of, an eighth annular sliding groove connected with the T-shaped sliding rod 202 in a sliding mode is formed in the upper portion of the left end face of the annular plate, so that the clamping mechanism 2 can only rotate by forty-five degrees, when the clamping mechanism 2 and the ladder stand 1 are in an installation state, the T-shaped sliding rod 202 and the limiting sliding rod are connected with the L-shaped support 101 in a sliding mode, and therefore the clamping mechanism 2 is more stable in sliding; the upper parts of the left end face and the right end face of the ladder stand 1 are respectively provided with a group of pulley mechanisms 3, each pulley mechanism 3 further comprises a first pulley 301 and a second pulley 302, the first pulley 301 is arranged on one side face of the L-shaped support 101 through a support, the second pulley 302 is arranged on one side face of the upper end of the ladder stand 1 through a support, the second pulley 302 and the first pulley 301 are connected with the steel wire rope 4 in a sliding mode, the included angle degree between the left end face of the second pulley 302 and the right end face of the ladder stand 1 is forty-five degrees, and the direction of the steel wire rope 4 is changed through the arrangement of the pulley mechanisms 3; the winding mechanism 5 is arranged on the lower portions of the left end face and the right end face of the crawling ladder 1, the winding mechanism 5 further comprises a one-way gear 501, a rotating shaft is fixedly connected to the center portion of each of the left end face and the right end face of the winding mechanism 5, a support arranged on a handle on one side of the crawling ladder 1 is rotatably connected to the outside of the winding mechanism 5 through the two rotating shafts, a first limiting mechanism 6 is arranged on the upper portion of the support outside the winding mechanism 5, the one-way gear 501 is fixedly connected to the right end of the rotating shaft on the right side of the winding mechanism 5, and a rotating handle is arranged on; the winding mechanism 5 is wound with a steel wire rope 4; each winding mechanism 5 is provided with a first limiting mechanism 6; the front end face of the ladder stand 1 is connected with a protection mechanism 7 in a sliding mode, the protection mechanism 7 further comprises a connecting rod 701, dovetail slide blocks 702, connecting belts 703 and a safety belt 704, the left end and the right end of the connecting rod 701 are respectively provided with the dovetail slide blocks 702, the front of the connecting rod 701 is connected with the safety belt 704 through the two connecting belts 703, the upper end face of one dovetail slide block 702 on the right side is provided with a second limiting mechanism 8, and when the protection mechanism 7 and the ladder stand 1 are in an installation state, the two dovetail slide blocks 702 are respectively connected with the two dovetail slide; the right side of the protection mechanism 7 is provided with a second limiting mechanism 8, the second limiting mechanism 8 further comprises a second limiting slide block 801, a pull rod 802 and a third spring 803, the second limiting slide block 801 is connected inside the second limiting mechanism 8 in a sliding mode, the center of the front end face of the second limiting slide block 801 is fixedly connected with the pull rod 802 penetrating through the front side of the second limiting mechanism 8, the third spring 803 inside the second limiting mechanism 8 is sleeved outside the pull rod 802, the front end of the pull rod 802 is provided with a handle, the upper side corner of the rear end of the second limiting slide block 801 is set to be a round angle, when the second limiting mechanism 8 is in a limiting state, the rear end of the second limiting slide block 801 is located in one of the rectangular clamping grooves 104 and is tightly attached to the rear side face inside the rectangular clamping groove 104.
Wherein the ladder stand 1 also comprises an L-shaped bracket 101, dovetail chutes 102, a steel wire rope limiting block 103 and a rectangular clamping groove 104, the left side and the right side of the front end surface of the ladder stand 1 are both provided with one dovetail chute 102, seventeen rectangular clamping grooves 104 are uniformly formed in the rear side surface of the inner part of the right dovetail sliding groove 102, two L-shaped brackets 101 are fixedly connected to the rear end surface of the upper part of the ladder stand 1 in a bilateral symmetry manner, two steel wire rope limiting blocks 103 connected with the steel wire ropes 4 in a sliding manner are arranged on the left end surface and the right end surface of the ladder stand 1, four cambered surface anti-skid rubber blocks are uniformly stuck on the rear end surface of each L-shaped bracket 101, so that the ladder stand 1 has better friction when being erected on a planar edge object, a handle with two ends distributed in a downward ninety-degree bending manner is arranged at the upper end of the ladder stand 1, and the front end face of the lower part of the crawling ladder 1 is provided with two rollers which are distributed in a bilateral symmetry manner through a support block, and the left end face and the right end face of the crawling ladder 1 are both provided with a handle.
Wherein, first stop gear 6 still includes first stop gear 601, second spring 602 and buckle 603, the inside sliding connection of first stop gear 6 has first stop gear 601, and bar-shaped sliding opening has been seted up to 6 a side of first stop gear, 6 internally mounted of first stop gear has second spring 602, 6 a side of first stop gear is located bar-shaped sliding opening both sides and all is equipped with a buckle 603, a side of first stop gear 601 is equipped with the post that draws that is connected with bar-shaped sliding opening slip, the front side edge of first stop gear 601 lower extreme sets up to the fillet, when first stop gear 6 is in mounted state with winding mechanism 5, closely contact between first stop gear 601 lower extreme and the one-way tooth of one-way gear 501, make one-way gear 501 can not carry out anticlockwise rotation.
When in use: an electric power maintainer holds a handle at the upper part of the ladder stand 1 by hand, the ladder stand 1 is moved to a required position through two rollers at the lower part of the ladder stand 1, then the two winding mechanisms 5 are clockwise rotated through handles on the one-way gear 501, the lower ends of the two steel wire ropes 4 are respectively wound on the inner side peripheral surfaces of the two winding mechanisms 5, so that the upper ends of the two steel wire ropes 4 respectively pull the two clamping mechanisms 2 linearly towards opposite directions, then the upper part of the ladder stand 1 is erected on a cylindrical telegraph pole, then pull columns on the two first limiting sliding blocks 601 are clamped on the buckles 603, the one-way gear 501 loses the limiting effect, the two clamping mechanisms 2 are clamped and fixed on the cylindrical telegraph pole under the effect of the first spring 203, the upper part of the ladder stand 1 is not easy to swing, and the safety of the ladder stand 1 in use;
when the electric power maintenance personnel climbs the ladder 1, earlier lap the waist with the safety belt 704, then when climbing the ladder 1, connecting band 703 pulling connecting rod 701 and two dovetail slide blocks 702 upwards slide on the ladder 1, drive second stop gear 8 upwards and slide simultaneously, the second stop slide block 801 rear end upside fillet slides through rectangular slot 104 in proper order this moment, when the electric power maintenance personnel takes place the phenomenon of falling on climbing the ladder 1, the safety belt 704 passes through connecting band 703 and rapidly with connecting rod 701 and two dovetail slide blocks 702 downwards pulling, then can not the gliding limiting displacement down through second stop slide block 801, thereby make electric power maintenance personnel be pulled by the safety belt 704, and then effectively avoided electric power maintenance personnel to take place the phenomenon of falling on ladder 1, thereby can not bring the injury for electric power maintenance personnel.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (8)
1. A portable protector for high altitude power maintenance which characterized in that: the ladder comprises a ladder stand (1), wherein two clamping mechanisms (2) are symmetrically arranged at the upper end of the ladder stand (1), each clamping mechanism (2) further comprises a clamping disc (201), a T-shaped sliding rod (202), a first spring (203) and a limiting sliding column (204), a T-shaped rotating shaft is arranged at the center of the right end face of each clamping mechanism (2), each clamping mechanism (2) is rotatably connected with the corresponding clamping disc (201) through the corresponding T-shaped rotating shaft, a T-shaped rotating groove rotatably connected with the corresponding T-shaped rotating shaft is formed in the center of the left end face of each clamping disc (201), the T-shaped sliding rod (202) is fixedly connected with the center of the right end face of each clamping disc (201), the first spring (203) is sleeved outside each T-shaped sliding rod (202), two limiting sliding rods are symmetrically arranged at the right end face of each clamping disc (201), and the right end of each T-shaped sliding rod (202, a limiting sliding column (204) is arranged at the upper part of the right end face of the clamping mechanism (2), and an arc-surface anti-skidding rubber block is adhered to the left end face of the clamping mechanism (2); a group of pulley mechanisms (3) are respectively arranged on the upper parts of the left end surface and the right end surface of the ladder stand (1); the lower parts of the left and right end surfaces of the ladder stand (1) are respectively provided with a winding mechanism (5), and a steel wire rope (4) is wound on the winding mechanisms (5); each winding mechanism (5) is provided with a first limiting mechanism (6); the front end face of the ladder stand (1) is connected with a protection mechanism (7) in a sliding mode, and a second limiting mechanism (8) is arranged on the right side of the protection mechanism (7).
2. A portable shielding device for high altitude power maintenance as claimed in claim 1, wherein: the ladder stand (1) further comprises L-shaped supports (101), dovetail chutes (102), steel wire rope limiting blocks (103) and rectangular clamping grooves (104), wherein the left side and the right side of the front end face of the ladder stand (1) are respectively provided with one dovetail chute (102), the rear side face inside the right dovetail chute (102) is uniformly provided with seventeen rectangular clamping grooves (104), the rear end face of the upper part of the ladder stand (1) is fixedly connected with the two L-shaped supports (101) in a bilateral symmetry manner, the left end face and the right end face of the ladder stand (1) are respectively provided with two steel wire rope limiting blocks (103) which are connected with the steel wire ropes (4) in a sliding manner, the rear end face of each L-shaped support (101) is uniformly adhered with four cambered surface anti-skid rubber blocks, the upper end of the ladder stand (1) is provided with handles with two ends distributed in a downward ninety-degree bending manner, and the front end face of, both ends face all is equipped with a handle about cat ladder (1).
3. A portable shielding device for high altitude power maintenance as claimed in claim 1, wherein: an annular plate is arranged on the periphery of the outer portion of the clamping disc (201), an eighth annular sliding groove connected with the T-shaped sliding rod (202) in a sliding mode is formed in the upper portion of the left end face of the annular plate, and when the clamping mechanism (2) and the ladder stand (1) are in an installation state, the T-shaped sliding rod (202) and the limiting sliding rod are connected with the L-shaped support (101) in a sliding mode.
4. A portable shielding device for high altitude power maintenance as claimed in claim 1, wherein: pulley mechanism (3) still include first pulley (301) and second pulley (302), first pulley (301) pass through support mounting on L type support (101) a side, second pulley (302) pass through support mounting on cat ladder (1) upper end a side, and second pulley (302) and first pulley (301) all slide with wire rope (4) and be connected, contained angle degree is forty-five degrees between second pulley (302) left end face and cat ladder (1) right end face.
5. A portable shielding device for high altitude power maintenance as claimed in claim 1, wherein: winding mechanism (5) still include one-way gear (501), the equal fixedly connected with pivot of both ends face central point portion about winding mechanism (5), and winding mechanism (5) outside rotate through two pivots and be connected with the support of installing on cat ladder (1) one side is handle, first stop gear (6) are installed on winding mechanism (5) outside support upper portion, winding mechanism (5) right side pivot right-hand member fixedly connected with one-way gear (501), and one-way gear (501) right-hand member face border portion is equipped with the commentaries on classics handle.
6. A portable shielding device for high altitude power maintenance as claimed in claim 1, wherein: first stop gear (6) still include first stop gear (601), second spring (602) and buckle (603), the inside sliding connection of first stop gear (6) has first stop gear (601), and first stop gear (6) side has seted up the bar sliding port, first stop gear (6) internally mounted has second spring (602), a first stop gear (6) side is located bar sliding port both sides and all is equipped with one buckle (603), a first stop gear (601) side is equipped with the post of drawing that is connected with the bar sliding port slip, first stop gear (601) lower extreme front side edge sets up to the fillet, works as when first stop gear (6) and winding mechanism (5) are in the mounted state, closely contacts between first stop gear (601) lower extreme and one-way gear (501) one-way tooth.
7. A portable shielding device for high altitude power maintenance as claimed in claim 1, wherein: protection machanism (7) still include connecting rod (701), forked tail slider (702), connecting band (703) and safety belt (704), both ends all are equipped with one forked tail slider (702) about connecting rod (701), and connecting rod (701) the place ahead is connected with safety belt (704) through two connecting bands (703), and a forked tail slider (702) up end on right side is equipped with second stop gear (8), works as when protection machanism (7) are in the mounted state with cat ladder (1), two forked tail sliders (702) respectively with two forked tail spout (102) sliding connection.
8. A portable shielding device for high altitude power maintenance as claimed in claim 1, wherein: the second limiting mechanism (8) further comprises a second limiting sliding block (801), a pull rod (802) and a third spring (803), the second limiting sliding block (801) is connected inside the second limiting mechanism (8) in a sliding mode, the center of the front end face of the second limiting sliding block (801) is fixedly connected with the pull rod (802) penetrating through the front side of the second limiting mechanism (8), the third spring (803) located inside the second limiting mechanism (8) is sleeved outside the pull rod (802), a handle is arranged at the front end of the pull rod (802), the upper side corner of the rear end of the second limiting sliding block (801) is set to be a round corner, and when the second limiting mechanism (8) is in a limiting state, the rear end of the second limiting sliding block (801) is located in one of the rectangular clamping grooves (104) and tightly attached to the inner rear side face of the rectangular clamping groove (104).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010519491.6A CN111691812A (en) | 2020-06-09 | 2020-06-09 | Portable protection device for high-altitude power maintenance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010519491.6A CN111691812A (en) | 2020-06-09 | 2020-06-09 | Portable protection device for high-altitude power maintenance |
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| CN111691812A true CN111691812A (en) | 2020-09-22 |
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| CN202010519491.6A Withdrawn CN111691812A (en) | 2020-06-09 | 2020-06-09 | Portable protection device for high-altitude power maintenance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112796652A (en) * | 2020-12-30 | 2021-05-14 | 国网青海省电力公司海南供电公司 | Pole cat ladder platform device safety base |
-
2020
- 2020-06-09 CN CN202010519491.6A patent/CN111691812A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112796652A (en) * | 2020-12-30 | 2021-05-14 | 国网青海省电力公司海南供电公司 | Pole cat ladder platform device safety base |
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Application publication date: 20200922 |