CN112227932A - Lower wire hard ladder with rotatable ladder head - Google Patents
Lower wire hard ladder with rotatable ladder head Download PDFInfo
- Publication number
- CN112227932A CN112227932A CN202010966692.0A CN202010966692A CN112227932A CN 112227932 A CN112227932 A CN 112227932A CN 202010966692 A CN202010966692 A CN 202010966692A CN 112227932 A CN112227932 A CN 112227932A
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- ladder
- head
- ladder head
- rotatable
- clamping
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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
- E06C1/36—Ladders suspendable by hooks or the like
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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 relates to the field of auxiliary tools for power transmission line operation, in particular to a lower lead hard ladder with a rotatable ladder head. The utility model provides a first rotatable lower wire ladder of ladder, includes two branches, branch between be provided with a plurality of horizontal poles, the one end of branch rotate and be connected with the ladder head that is the U type form, the ladder overhead adjustable pole that is provided with length adjustment, the one end of ladder head rotate and connect on corresponding branch, the other end of ladder head rotate with the one end of adjusting the pole and be connected, the one end of ladder head be close to branch be provided with the other end matched with locating hole of adjusting the pole. The cross arm angle iron can be hung at any position of the cross arm angle iron, so that an operator can conveniently select a proper position to carry out wire laying operation, the physical strength of the operator is saved, and the working efficiency and the operation safety of the operator are improved.
Description
Technical Field
The invention relates to the field of auxiliary tools for power transmission line operation, in particular to a lower lead hard ladder with a rotatable ladder head.
Background
In the power failure maintenance process of the power transmission line, a hard ladder or a soft ladder is often needed to be used for conducting wire descending work. The advantage of hard ladder lies in when the unable man-hour of standing on the wire, and the people can sit and carry out the operation on the hard ladder, and convenient and fast, the hard ladder is hung in addition and is established simply, and it is convenient to dismantle, and the climbing is easy, receives liking of transmission line operation personnel deeply.
The design of the ladder head of the present hard ladder is only two hooks, the hook is hung on the specific angle iron of the cross arm of the iron tower, and after the hook is fixed, the operating personnel work to the wire side in a climbing mode.
The existing hard ladder is single in hanging position, the ladder head cannot rotate and change the angle, and the ladder can only be hung on a horizontal angle iron, so that the position of a wire of an operator is limited, and when the hard ladder is hung on the crossed angle iron, the problem that the ladder head cannot be hung can be caused.
For example, Chinese patent publication numbers are: CN203242960U, in a hang telescopic hard ladder that 16 days announced in 2013 month 10, including ladder body, couple, spring telescoping control spanner, separation blade, overlap line horizontal pole and zigzag tenon, the ladder body includes ladder and lower ladder, goes up the fixed couple in ladder top, and the bottom of lower ladder is fixed with the overlap line horizontal pole, goes up the outside and passes through sliding rail connection with the lower ladder is inside, goes up the ladder and cooperates the department with the lower ladder, goes up the ladder and is equipped with zigzag tenon, and the lower ladder is equipped with spring telescoping control spanner, and the one end of spanner is equipped with protruding can block on zigzag tenon, and is equipped with the separation blade in the below of spring telescoping control spanner, and this separation blade is the fixed part of spring telescoping control spanner. The utility model discloses a though the cooperation through zigzag tenon and the flexible control spanner of spring realizes the flexible of ladder, has solved the workman and has gone up and down the problem of wire difficulty when carrying out the circuit maintenance operation, but hang and establish the position singleness, the couple can't rotate and transform the angle, can only hang and establish on a horizontally angle bar, has just so restricted the position of operation personnel lower wire, when needs hang on crisscross angle bar and establish the hard ladder, can appear the couple can't hang into the problem.
Disclosure of Invention
The invention mainly aims at the problems that the existing hard ladder is single in hanging position, the ladder head cannot rotate and change the angle and can only be hung on one horizontal angle iron, so that the position of a lead can be limited for an operator, and when the hard ladder needs to be hung on the crossed angle iron, the ladder head cannot be hung in, and provides the lead-falling hard ladder with the rotatable ladder head, which can be hung at any position of a cross arm angle iron, is convenient for the operator to select a proper position for lead-falling operation, saves the physical strength of the operator, and improves the working efficiency and the operation safety of the operator.
The purpose of the invention is mainly realized by the following scheme: the utility model provides a first rotatable lower wire ladder of ladder, includes two branches, branch between be provided with a plurality of horizontal poles, the one end of branch rotate and be connected with the ladder head that is the U type form, the ladder overhead adjustable pole that is provided with length adjustment, the one end of ladder head rotate and connect on corresponding branch, the other end of ladder head rotate with the one end of adjusting the pole and be connected, the one end of ladder head be close to branch be provided with the other end matched with locating hole of adjusting the pole. A plurality of cross rods are arranged between the supporting rods, one end of each supporting rod is rotatably connected with a U-shaped ladder head, a length-adjustable adjusting rod is arranged on each ladder head, one end of each ladder head is rotatably connected to the corresponding supporting rod, the other end of each ladder head is rotatably connected with one end of each adjusting rod, one end of each ladder head, which is close to the corresponding supporting rod, is provided with a positioning hole matched with the other end of each adjusting rod, when an operator uses the hard ladder, the ladder heads are firstly rotated to a proper angle, the two ladder heads are conveniently hung after being combined into different angles, then the ladder heads are hung on the corresponding cross arm angle iron, the adjusting rods are then rotated to the corresponding positioning holes, the length of the adjusting rods is adjusted, the adjusting rods are clamped into the positioning holes after being extended, the setting of the adjusting rods can prevent the ladder heads from being separated from the cross arm angle iron in the operation, the physical power of the operating personnel is saved, and the working efficiency and the operation safety of the operating personnel are improved.
As preferred, the regulation pole include dwang and card post, the one end of dwang rotate to be connected on the ladder head, the other end and the card post threaded connection of dwang, the card post keep away from the one end and the locating hole of dwang cooperate. Adjust the pole and include dwang and card post, the one end of dwang is rotated and is connected overhead at the ladder, the other end and the card post threaded connection of dwang, the one end and the locating hole of keeping away from the dwang of card post cooperate, hang when establishing at the hard ladder, block the post and break away from mutually with the locating hole, prevent to establish to hanging of hard ladder and cause the interference, the operation is very simple.
Preferably, the rotating rod is provided with an external thread section, and the clamping column is provided with an internal thread hole in threaded connection with the external thread section. Be provided with the external screw thread section on the dwang, be provided with the internal thread hole with external screw thread section threaded connection on the card post, the transversal of card post is personally submitted circularly, and the shape of locating hole cooperatees with the shape of card post to make the rotatory card post of operating personnel can adjust the length of regulating lever, make things convenient for card post card to go into or break away from in the locating hole.
Preferably, the ladder head on be provided with dwang matched with adjustment tank, adjustment tank in be provided with the pivot, the dwang keep away from the one end rotation connection of card post in the pivot. Ladder overhead be provided with dwang matched with adjustment tank, the adjustment tank is provided with the pivot, the one end rotation connection of keeping away from the card post of dwang in the pivot for card post after breaking away from the locating hole, the dwang can rotate along the pivot smoothly, prevents to establish to hanging of hard ladder and causes the hindrance.
Preferably, the end of the supporting rod is provided with a steering groove matched with the ladder head, and one end of the ladder head is rotatably connected in the steering groove. The tip of branch is provided with and turns to the groove with ladder head matched with, and the one end of ladder head is rotated and is connected in turning to the inslot for operation personnel can adjust the angle of ladder head conveniently.
Preferably, the bottom of the steering groove is provided with a positioning column, and the ladder head is provided with a positioning groove matched with the positioning column. The bottom in steering groove is provided with the reference column, and the ladder is overhead to be provided with the constant head tank with reference column matched with for ladder head stability when rotating is high.
Preferably, the ladder overhead one end of being close to branch be provided with the spout, spout and locating hole intercommunication, the spout sliding connection have the slide bar, the one end of slide bar be located the locating hole, the slide bar be located the locating hole one end be provided with the first spigot surface of chucking post matched with, the spout one side of keeping away from the locating hole be provided with the chucking hole that is located the ladder overhead, the quantity in chucking hole be two, the downthehole sliding connection of chucking have and be used for supporting the chucking piece on branch, connect through chucking spring between two chucking pieces, the chucking piece be close to the one end of chucking spring be provided with slide bar matched with second spigot surface, the bottom surface of one end of slide bar and spout between be connected through reset spring. One end of the ladder head close to the support rod is provided with a sliding groove, the sliding groove is communicated with the positioning hole, a sliding rod is connected in the sliding groove in a sliding manner, one end of the sliding rod is positioned in the positioning hole, one end of the sliding rod positioned in the positioning hole is provided with a first guide surface matched with the clamping column, one side of the sliding groove far away from the positioning hole is provided with clamping holes positioned on the ladder head, the number of the clamping holes is two, the clamping holes are internally and slidably connected with clamping blocks used for abutting against the support rod, the two clamping blocks are connected through a clamping spring, one end of the clamping block close to the clamping spring is provided with a second guide surface matched with the sliding rod, one end of the sliding rod is connected with the bottom surface of the sliding groove through a reset spring, after an operator hangs the ladder head on a cross angle iron, the operator clamps the clamping column into the positioning hole, then the operator starts to, the clamping column can be abutted against the first guide surface of the sliding rod when moving, so that the sliding rod moves in the direction of the reciprocating spring after being stressed, along with the movement of the sliding rod, the sliding rod can be abutted against the second guide surface, and the clamping block can move along the clamping hole and abut against the side wall of the steering groove after being stressed, so that the positioning of the ladder head angle is realized, and the stability and the safety of the hard ladder for operating personnel during operation are greatly improved; when the operating personnel will dismantle the hard ladder, the card post of reverse rotation for the card post breaks away from the locating hole, then slide bar and chucking piece can realize reseing under reset spring and chucking spring's effect, convenient next operation.
Preferably, the cross bar is welded to the support bar. The cross rod is welded on the support rod, so that the connection is very stable and the service life is long.
Preferably, a steering ring is arranged on the side wall of the steering groove, and an anti-falling groove matched with the steering ring is arranged on the ladder head. Be provided with on the lateral wall that turns to the groove and turn to the ring, the ladder is overhead to be provided with the anticreep groove that turns to ring matched with, turns to the ring and can prevent that the ladder head from breaking away from to turn to the inslot with anticreep groove's setting, has improved the security.
Preferably, the first guide surface and the second guide surface are both arc-shaped surfaces. The first guide surface and the second guide surface are arc surfaces, so that the sliding rod and the clamping block can be well stressed and moved.
Therefore, the lower wire hard ladder with the rotatable ladder head has the following advantages: the invention has simple operation, can be hung at any position of the cross arm angle iron, is convenient for an operator to select a proper position for conducting wire laying operation, saves the physical strength of the operator, improves the working efficiency and the operation safety of the operator, and has high stability after the hard ladder is hung.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a cross-sectional view at a in the soil 1.
Fig. 3 is a partial schematic view of a ladder head according to the present invention.
Illustration of the drawings: 1-supporting rod, 2-cross rod, 3-ladder head, 4-rotating rod, 5-clamping column, 6-external thread section, 7-internal thread hole, 8-positioning hole, 9-sliding groove, 10-sliding rod, 11-first guide surface, 12-steering groove, 13-positioning column, 14-positioning groove, 15-clamping block, 16-clamping hole, 17-second guide surface, 18-clamping spring, 19-reset spring, 20-rotating shaft, 21-adjusting groove, 22-steering ring and 23-anti-drop groove.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Example 1:
as shown in figures 1 and 2, a lower lead hard ladder with rotatable ladder heads comprises two support rods 1, a plurality of cross rods 2 are arranged between the support rods 1, the cross rods 2 are welded on the support rods 1, the connection is very stable, the service life is long, one end of each support rod 1 is rotatably connected with a U-shaped ladder head 3, a length-adjustable adjusting rod is arranged on each ladder head 3, one end of each ladder head 3 is rotatably connected to the corresponding support rod 1, the other end of each ladder head 3 is rotatably connected with one end of the adjusting rod, one end of each ladder head 3, which is close to the corresponding support rod 1, is provided with a positioning hole 8 matched with the other end of the adjusting rod, when an operator uses the hard ladder, the ladder heads 3 are firstly rotated to a proper angle, the two ladder heads 3 are conveniently hung after being combined into different angles, then the ladder heads 3 are hung on corresponding cross arm angle irons, then the adjusting rods are rotated to the positions corresponding to, make and adjust the pole extension back card go into in locating hole 8, the setting of adjusting the pole can prevent that ladder head 3 from deviating from the cross arm angle bar in the operation process, makes things convenient for the operation personnel to select suitable position to carry out down the wire operation, has saved operation personnel's physical power, has improved operation personnel's work efficiency and the security of operation.
Adjust the pole and include dwang 4 and card post 5, the one end of dwang 4 is rotated and is connected on ladder head 3, the other end and the 5 threaded connection of card post of dwang 4, the one end of keeping away from dwang 4 of card post 5 cooperatees with locating hole 8, when the hard ladder is hung and is established, card post 5 breaks away from with locating hole 8 mutually, prevents to establish to hanging of hard ladder and causes the interference, and the operation is very simple.
Be provided with external screw thread section 6 on the dwang 4, be provided with on the card post 5 with external screw thread section 6 threaded connection's internal thread hole 7, the transversal personally submitting of card post 5 is circular, the shape of locating hole 8 matches with the shape of card post 5 to make the length of operating personnel rotatory card post 5 can be adjusted the regulating lever, make things convenient for card post 5 to block into or break away from in the locating hole 8.
As shown in fig. 3, be provided with on the ladder head 3 with dwang 4 matched with adjustment tank 21, be provided with pivot 20 in the adjustment tank 21, the one end of keeping away from card post 5 of dwang 4 rotates and connects on pivot 20 for card post 5 is breaking away from behind locating hole 8, and dwang 4 can rotate along pivot 20 smoothly, prevents to establish to hanging of hard ladder and causes the hindrance.
The end part of the supporting rod 1 is provided with a steering groove 12 matched with the ladder head 3, and one end of the ladder head 3 is rotatably connected in the steering groove 12, so that an operator can conveniently adjust the angle of the ladder head 3; the bottom of the steering groove 12 is provided with a positioning column 13, and the ladder head 3 is provided with a positioning groove 14 matched with the positioning column 13, so that the ladder head 3 has high stability during rotation; the side wall of the steering groove 12 is provided with a steering ring 22, the ladder head 3 is provided with an anti-falling groove 23 matched with the steering ring 22, the steering ring 22 and the anti-falling groove 23 are arranged to prevent the ladder head 3 from falling out of the steering groove 12, and safety is improved.
One end of the ladder head 3 close to the supporting rod 1 is provided with a sliding groove 9, the sliding groove 9 is communicated with the positioning hole 8, the sliding groove 9 is connected with a sliding rod 10 in a sliding manner, one end of the sliding rod 10 is positioned in the positioning hole 8, one end of the sliding rod 10 positioned in the positioning hole 8 is provided with a first guide surface 11 matched with the clamping column 5, one side of the sliding groove 9 far away from the positioning hole 8 is provided with two clamping holes 16 positioned on the ladder head 3, the number of the clamping holes 16 is two, the clamping holes 16 are connected with clamping blocks 15 used for abutting against the supporting rod 1 in a sliding manner, the two clamping blocks 15 are connected through clamping springs 18, one end of each clamping block 15 close to each clamping spring 18 is provided with a second guide surface 17 matched with the sliding rod 10, one end of the sliding rod 10 is connected with the bottom surface of the sliding groove 9 through a return spring 19, after an operator hangs the ladder head 3 on a cross arm angle iron, then, the operator starts to rotate the clamping column 5, so that the clamping column 5 moves away from the rotating rod 4, the clamping column 5 can be abutted against the first guide surface 11 of the sliding rod 10 when moving, the sliding rod 10 moves in the direction of the reciprocating position spring 19 after being stressed, along with the movement of the sliding rod 10, the sliding rod 10 can be abutted against the second guide surface 17, and the clamping block 15 can move along the clamping hole 16 and abut against the side wall of the steering groove 12 after being stressed, so that the angle positioning of the ladder head 3 is realized, and the stability and the safety of a hard ladder of the operator during operation are greatly improved; when an operator needs to disassemble the hard ladder, the clamping column 5 is rotated reversely, so that the clamping column 5 is separated from the positioning hole 8, and then the sliding rod 10 and the clamping block 15 can reset under the action of the reset spring 19 and the clamping spring 18, so that the next operation is facilitated.
The first guide surface 11 and the second guide surface 17 are both arc-shaped surfaces, so that the slide bar 10 and the clamping block 15 can be well stressed and moved.
It should be understood that this example is only for illustrating the present invention and is not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
Claims (10)
1. The utility model provides a first rotatable lower wire ladder of ladder, includes two branches, branch between be provided with a plurality of horizontal poles, its characterized in that, the one end of branch rotate and be connected with the ladder head that is the U type form, the ladder overhead adjustable pole that is provided with of length, the one end of ladder head rotate and connect on corresponding branch, the other end of ladder head rotate with the one end of adjusting the pole and be connected, the one end of ladder head be close to branch be provided with the other end matched with locating hole of adjusting the pole.
2. The lower wire hard ladder with the rotatable ladder head as claimed in claim 1, wherein the adjusting rod comprises a rotating rod and a clamping column, one end of the rotating rod is rotatably connected to the ladder head, the other end of the rotating rod is in threaded connection with the clamping column, and one end of the clamping column, which is far away from the rotating rod, is matched with the positioning hole.
3. The lower conductor hard ladder with the rotatable ladder head as claimed in claim 2, wherein the rotating rod is provided with an external thread section, and the clamping column is provided with an internal thread hole in threaded connection with the external thread section.
4. The lower conductor hard ladder with the rotatable ladder head as claimed in claim 2 or 3, wherein the ladder head is provided with an adjusting groove matched with the rotating rod, the adjusting groove is provided with a rotating shaft, and one end of the rotating rod, which is far away from the clamping column, is rotatably connected to the rotating shaft.
5. A ladder with rotatable ladder heads for lowering conductors as claimed in claim 2 or 3, wherein the end of said strut is provided with a turning groove engaged with the ladder head, and one end of said ladder head is rotatably connected to the turning groove.
6. The bottom lead hard ladder with the rotatable ladder head as claimed in claim 5, wherein the bottom of the turning groove is provided with a positioning column, and the ladder head is provided with a positioning groove matched with the positioning column.
7. The bottom wire ladder with the rotatable ladder head as claimed in claim 5, one end of the ladder head close to the support rod is provided with a sliding chute which is communicated with the positioning hole, a sliding rod is connected in the sliding groove in a sliding manner, one end of the sliding rod is positioned in the positioning hole, a first guide surface matched with the clamping column is arranged at one end of the sliding rod positioned in the positioning hole, one side of the sliding chute far away from the positioning hole is provided with two clamping holes positioned on the ladder head, the clamping hole is connected with a clamping block which is used for being propped against the supporting rod in a sliding way, the two clamping blocks are connected through a clamping spring, one end of the clamping block, which is close to the clamping spring, is provided with a second guide surface matched with the sliding rod, and one end of the sliding rod is connected with the bottom surface of the sliding groove through a return spring.
8. The bottom wire ladder with the rotatable ladder head as claimed in claim 1, wherein the cross bar is welded to the support bar.
9. The bottom lead escalator with the rotatable head as claimed in claim 5, wherein the side wall of said turning groove is provided with a turning ring, and said head is provided with a slip-off preventing groove engaged with said turning ring.
10. The ladder with rotatable ladder head for descending conducting wires of claim 7, wherein the first guiding surface and the second guiding surface are both arc-shaped surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010966692.0A CN112227932B (en) | 2020-09-15 | 2020-09-15 | Lower wire hard ladder with rotatable ladder head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010966692.0A CN112227932B (en) | 2020-09-15 | 2020-09-15 | Lower wire hard ladder with rotatable ladder head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112227932A true CN112227932A (en) | 2021-01-15 |
| CN112227932B CN112227932B (en) | 2022-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010966692.0A Active CN112227932B (en) | 2020-09-15 | 2020-09-15 | Lower wire hard ladder with rotatable ladder head |
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| Country | Link |
|---|---|
| CN (1) | CN112227932B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5624006A (en) * | 1995-09-05 | 1997-04-29 | Richardson, Jr.; Gary P. | Support apparatus for use on an inclined roof |
| CN201883923U (en) * | 2010-07-13 | 2011-06-29 | 中冶天工上海十三冶建设有限公司 | Multi-purpose ladder for aloft work |
| CN202417285U (en) * | 2011-12-16 | 2012-09-05 | 宁夏电力公司中卫供电局 | Rotatable rigid ladder for maintenance of power transmission lines |
| CN207583297U (en) * | 2017-11-21 | 2018-07-06 | 金华送变电工程有限公司 | A kind of adjustable hook cat ladder |
| CN210003198U (en) * | 2019-01-07 | 2020-01-31 | 苏州市电讯工程有限公司 | kinds of communication pole line construction bamboo ladder heightening hook |
| CN210439957U (en) * | 2019-07-11 | 2020-05-01 | 中铁十六局集团铁运工程有限公司 | Special ladder of railway T roof beam construction |
-
2020
- 2020-09-15 CN CN202010966692.0A patent/CN112227932B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5624006A (en) * | 1995-09-05 | 1997-04-29 | Richardson, Jr.; Gary P. | Support apparatus for use on an inclined roof |
| CN201883923U (en) * | 2010-07-13 | 2011-06-29 | 中冶天工上海十三冶建设有限公司 | Multi-purpose ladder for aloft work |
| CN202417285U (en) * | 2011-12-16 | 2012-09-05 | 宁夏电力公司中卫供电局 | Rotatable rigid ladder for maintenance of power transmission lines |
| CN207583297U (en) * | 2017-11-21 | 2018-07-06 | 金华送变电工程有限公司 | A kind of adjustable hook cat ladder |
| CN210003198U (en) * | 2019-01-07 | 2020-01-31 | 苏州市电讯工程有限公司 | kinds of communication pole line construction bamboo ladder heightening hook |
| CN210439957U (en) * | 2019-07-11 | 2020-05-01 | 中铁十六局集团铁运工程有限公司 | Special ladder of railway T roof beam construction |
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| Publication number | Publication date |
|---|---|
| CN112227932B (en) | 2022-06-10 |
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