CN209855692U - Block terminal overlap joint formula operation ladder on rural power grids post - Google Patents

Block terminal overlap joint formula operation ladder on rural power grids post Download PDF

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Publication number
CN209855692U
CN209855692U CN201920601737.7U CN201920601737U CN209855692U CN 209855692 U CN209855692 U CN 209855692U CN 201920601737 U CN201920601737 U CN 201920601737U CN 209855692 U CN209855692 U CN 209855692U
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China
Prior art keywords
ladder
head
type
distribution box
rural power
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CN201920601737.7U
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Chinese (zh)
Inventor
杜清华
罗召前
胡元春
周成秀
徐乐
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Suqian Power Supply Branch Jiangsu Electric Power Co Ltd
State Grid Corp of China SGCC
State Grid Jiangsu Electric Power Co Ltd
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Suqian Power Supply Branch Jiangsu Electric Power Co Ltd
State Grid Corp of China SGCC
State Grid Jiangsu Electric Power Co Ltd
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Application filed by Suqian Power Supply Branch Jiangsu Electric Power Co Ltd, State Grid Corp of China SGCC, State Grid Jiangsu Electric Power Co Ltd filed Critical Suqian Power Supply Branch Jiangsu Electric Power Co Ltd
Priority to CN201920601737.7U priority Critical patent/CN209855692U/en
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Abstract

The utility model relates to a block terminal overlap joint formula operation ladder on rural power grids post relates to a climbing instrument, especially a ladder of transformer outdoor distribution box operation on the post is exclusively used in. Comprises a telescopic ladder main body, a hasp type ladder head and anti-skid insulating ladder feet; the telescopic ladder main body is provided with a ladder body, and the left side and the right side of the top of the ladder body are provided with connecting sleeves connected with the hook type ladder heads; the bottom of the ladder body is provided with anti-skid insulating ladder legs which are used for anti-skid and insulation of the outdoor distribution box operation ladder of the pole-mounted transformer; the lap hook type ladder head is connected with the main body of the extension ladder through the connecting sleeves on the left side and the right side of the top of the ladder body, the main bodies of the lap hook type ladder heads on the two sides are in a T-shaped structure, and the left side and the right side of the top of the lap hook type ladder head on the left side are symmetrically provided with the first short supporting rods; in addition, a long supporting rod is arranged at the joint of the T-shaped transverse component and the longitudinal component of the right-side hook-type ladder head in a direction perpendicular to the two parts, and short supporting rods II are symmetrically arranged on the left side and the right side of the top of the right-side hook-type ladder head in opposite directions. The positions of the two ladder heads can be exchanged.

Description

Block terminal overlap joint formula operation ladder on rural power grids post
Technical Field
The utility model relates to a block terminal overlap joint formula operation ladder on rural power grids post relates to a climbing instrument, especially a ladder of transformer outdoor distribution box operation on the post is exclusively used in.
Background
At present, the installation forms of the pole-mounted transformer comprehensive distribution box are divided into an H type and an H type. In the work, need open comprehensive distribution box door and carry out the operation and maintenance to its internal plant.
The existing ascending equipment (epoxy resin vertical ladder, common bamboo ladder, etc.) has the following conditions in the distribution box operation and inspection process:
1) can not ascend height
The installation height of the H-shaped distribution box is generally between 1.8 and 2m, the height of a common vertical ladder is 3.5 to 4m, and the use cannot be shortened. The operator generally stands in a hopper of a pickup truck or finds simple ascending equipment such as a wooden stool for equipment operation, and the operator is difficult to smoothly operate under the condition that the vehicle cannot stop or the height of the wooden stool is not proper when the vehicle is carried.
2) Inconvenient transportation and maintenance
The staff uses ordinary ladder, the ladder of taking the couple and other portable tools of ascending a height to open the chamber door when putting up to the block terminal hardly.
The general installation height of "h" type block terminal is between 1.8 to 4m, when ascending a height, generally need to carry out the following operating procedure: the ladder is lapped on the side surface of the distribution box → the step → the arm is stretched obliquely to open the door → the step → the ladder is lapped on the lower edge of the distribution box → the step → the operation equipment → the step → the ladder is lapped on the side surface of the distribution box → the step → the arm is stretched obliquely to close the door → the step is stretched obliquely to open the door, and the operation is time-consuming and unsafe in the whole process.
In order to solve the problems, climbing equipment specially fixed on a transformer rack is designed, but the equipment is high in erection cost and low in universality, so that a portable operation ladder capable of allowing workers to climb a distribution box on a column is required to be developed, and the development of daily operation and maintenance work in a low-voltage transformer area is facilitated.
SUMMERY OF THE UTILITY MODEL
The utility model aims at above-mentioned weak point, provide a block terminal overlap joint formula operation ladder on rural power grids post, the main part has flexible function, is exclusively used in the outdoor block terminal operation of transformer on the post.
The utility model discloses an adopt following technical scheme to realize:
a distribution box lap joint type operation ladder on a rural power grid column comprises a telescopic ladder main body, a lap hook type ladder head and anti-skidding insulating ladder feet.
The telescopic ladder main body is provided with a ladder body, the ladder body is composed of a plurality of sections, the ladder body is of a pull rod type telescopic structure, after the ladder body is completely pulled open, the distance between every two sections is 30-35cm, and the left side and the right side of the top of the ladder body are provided with connecting sleeves connected with hook type ladder heads. The lowest working height of the extension ladder main body is about 1.5m, and the highest working height of the extension ladder main body is about 4 m. Each section of the ladder body is provided with a pedal (step) for climbing up and down.
The bottom of the ladder body is provided with anti-skid insulating ladder feet for the anti-skid and insulation of the outdoor distribution box operation ladder of the pole-mounted transformer.
The hasp type ladder head is connected with the extension ladder main body through connecting sleeves on the left side and the right side of the top of the ladder body, the hasp type ladder head main bodies on the two sides are of a T-shaped structure, wherein short support rods I are symmetrically arranged on the left side and the right side of the top of the left side hasp type ladder head, and form an angle of 20 degrees with the horizontal plane; the right side hook type ladder head is arranged at the joint of the T-shaped transverse component and the longitudinal component, a long supporting rod is arranged in the direction perpendicular to the two parts, the head of the supporting rod is slightly bent downwards, the left side and the right side of the top of the right side hook type ladder head in the opposite direction are symmetrically provided with a second short supporting rod (the opposite direction of the second short supporting rod is the same as that of the first hook type ladder head), and the positions of the left hook type ladder head and the right hook type ladder head can be interchanged.
The length of the long strut is 6cm-7 cm. The length of the first short supporting rod and the second short supporting rod is 2cm-3 cm.
The ladder head bottoms of the left side hook type ladder head and the right side hook type ladder head are provided with threads, and after the connecting sleeve is inserted, the bottom of the connecting sleeve is screwed and fixed by nuts.
The connecting sleeve is provided with a locking and positioning screw, and the locking and positioning screw is adopted to lock and position after the hasp ladder head is connected with the extension ladder main body through the connecting sleeve at the left side and the right side of the top of the ladder body.
The lap joint ladder head and the ladder body are connected, the lap joint ladder head needs to rotate after being inserted into the connecting sleeve according to the lap joint ladder head, the orientation of a lap joint part of the lap joint ladder head is fixed during use, holes are formed in the downward 25mm position of the upper end of the connecting sleeve, and the lap joint ladder head is fixed by screwing in a locking positioning screw.
The body of extension ladder main part adopt glass steel material ladder, whole body realizes insulating, accords with distribution "ann rule" 7.3.7 "in the electrified region of distribution station or adjacent electrified circuit department, forbids to use the metal ladder" the regulation.
When the operation ladder of the lap joint type operation ladder for the distribution box on the rural power grid column is used, the main body of the extension ladder is firstly opened, and for an H-shaped outdoor box, four small support rods on the hook type ladder head can be lapped in a channel steel groove below the outdoor box. For the h-shaped outdoor box, the long supporting rod of the hook-type ladder head can be inserted into a hole of a rack at the bottom of the outdoor box to realize lap joint, the anti-skid insulating ladder feet arranged at the bottom of the ladder body are placed stably, the distribution transformer comprehensive distribution box maintenance operation can be carried out on a special operation platform for a low-voltage platform area, the consumed time is short, and the time is only 3.9 minutes from climbing, operation and returning, so that the expected effect is achieved.
The utility model provides a transformer outdoor distribution box operation ladder on post has following apparent advantage:
1. the operation flexibility is good, the structure is very firm, the use is convenient, the carrying is convenient, and the space of the vehicle is not occupied.
2. The glass fiber reinforced plastic is used, so that the quality is good, the appearance color tone is uniform, and the appearance is neat and attractive.
3. During the use, the ladder head closely links to each other with outdoor case lower edge, and the insulating guarantee personnel of ladder body do not take place the electric shock accident.
Drawings
The present invention will be further explained with reference to the accompanying drawings:
fig. 1 is a schematic view of a folded state structure of a distribution box lap joint type operation ladder on a rural power grid column.
Fig. 2 is a schematic structural diagram of an elongated state of a distribution box lap joint type operation ladder on a rural power grid column.
Fig. 3 is a front structure schematic of a left side hook type ladder head of a distribution box lap joint type operation ladder on a rural power network column.
Fig. 4 is a structural schematic of the rear part of a left side hook type ladder head of a distribution box lap joint type operation ladder on a rural power network column.
Fig. 5 is a structural schematic of the left side hook type ladder head side of the overlapping type operation ladder for the distribution box on the rural power network column.
Fig. 6 is a front structure illustration of a right side hook type ladder head of a distribution box lap joint type operation ladder on a rural power network column.
Fig. 7 is a structural schematic of the rear part of a right-side hook type ladder head of a distribution box lap joint type operation ladder on a rural power network column.
Fig. 8 is a structural schematic of a right side hook type ladder head side of a distribution box lap joint type operation ladder on a rural power grid column.
Fig. 9 is a schematic view of a lapped operation ladder for a distribution box on a rural power grid column, which is lapped in a channel steel below an H-shaped outdoor box.
Fig. 10 is a schematic view of a bracket for lapping an operation ladder for lapping a distribution box on a rural power grid column below an h-shaped outdoor box.
Fig. 11 is a schematic view of the connection between the hook type ladder head and the ladder body of the lap type operation ladder for the distribution box on the rural power network column.
Fig. 12 is a schematic view of the connection between the hook type ladder head and the connection sleeve of the lap type operation ladder for the distribution box on the rural power network column.
Labeled as: 1. the anti-skid elevator comprises a ladder body, 2, pedals, 3, anti-skid insulating ladder feet, 4, a connecting sleeve, 5, a left-side hook-up ladder head, 6, a right-side hook-up ladder head, 7, a locking and positioning screw, 8, a limiting ring, 9, an 'H' -shaped outdoor box, 10, an 'H' -shaped outdoor box, 11 and a nut;
5-1, a first short supporting rod, 6-1, a long supporting rod, 6-2 and a second short supporting rod.
Detailed Description
Referring to the attached drawings 1-12, the overlapping type operation ladder for the distribution box on the rural power network column comprises a telescopic ladder main body, a hook type ladder head and an anti-skid insulating ladder foot 3.
The telescopic ladder main body is provided with a ladder body 1, the ladder body 1 is composed of a plurality of sections, the ladder body adopts a pull rod type telescopic structure, after the ladder body is completely pulled open, the distance between every two sections is 30-35cm, and the left side and the right side of the top of the ladder body are provided with connecting sleeves connected with hook type ladder heads. The lowest working height of the extension ladder main body is about 1.5m, and the highest working height of the extension ladder main body is about 4 m. Each section of the ladder body is provided with a pedal (step) 2 for climbing up and down.
The bottom of the ladder body 1 is provided with anti-skid insulating ladder feet 3 for the anti-skid and insulation of the outdoor distribution box operation ladder of the pole-mounted transformer.
The hasp type ladder head is connected with the extension ladder main body through the connecting sleeves 4 on the left side and the right side of the top of the ladder body 1, the hasp type ladder head main bodies on the two sides are of a T-shaped structure, wherein short support rods I5-1 are symmetrically arranged on the left side and the right side of the top of the left side hasp type ladder head 5, and form an angle of 20 degrees with the horizontal plane; a long supporting rod 6-1 is arranged at the joint of the T-shaped transverse component and the longitudinal component on the right side of the hook-type ladder head 6 and is vertical to the two parts, and the head of the supporting rod is slightly bent downwards; short support rods II 6-2 are symmetrically arranged on the left side and the right side of the top of the right-side hook type ladder head 6 in the opposite directions (the opposite directions of the short support rods II are the same as those of the structure of the former hook type ladder head), and the positions of the left hook type ladder head and the right hook type ladder head can be interchanged.
The length of the long support rod 6-1 is 6cm-7 cm. The length of the short strut I is 5-1, and the length of the short strut II is 6-2 cm-3 cm.
The bottom of the hook-type ladder head is provided with threads, and after the connecting sleeve 4 is inserted, the bottom of the connecting sleeve 4 is screwed and fixed by a nut 11.
The connecting sleeve is provided with a locking and positioning screw, and the locking and positioning screw is adopted to lock and position after the hasp ladder head is connected with the extension ladder main body through the connecting sleeve at the left side and the right side of the top of the ladder body.
The lap joint ladder head and the ladder body are connected, the lap joint ladder head needs to rotate after being inserted into the connecting sleeve according to the lap joint ladder head, the orientation of a lap joint part of the lap joint ladder head is fixed during use, holes are formed in the downward 25mm position of the upper end of the connecting sleeve, and the lap joint ladder head is fixed by screwing in a locking positioning screw.
The body of extension ladder main part adopt glass steel material ladder, whole body realizes insulating, accords with distribution "ann rule" 7.3.7 "in the electrified region of distribution station or adjacent electrified circuit department, forbids to use the metal ladder" the regulation.
The bottom of the ladder body 1 is provided with anti-skid insulating ladder feet 3 for the anti-skid and insulation of the outdoor distribution box operation ladder of the pole-mounted transformer.
The hasp type ladder head is connected with the extension ladder main body through the connecting sleeves 4 on the left side and the right side of the top of the ladder body, the hasp type ladder head main bodies on the two sides are of a T-shaped structure, wherein short supporting rods (5-1) with the length of 2cm-3cm are symmetrically arranged on the left side and the right side of the top of the left side hasp type ladder head 5, and form an angle of 20 degrees with the horizontal plane; the right side hook type ladder head 6 is arranged at the joint of the T-shaped transverse component and the longitudinal component, a long supporting rod 6-1 with the length of 6cm-7cm is arranged in the direction perpendicular to the two parts, the head of the supporting rod is slightly bent downwards, short supporting rods two 6-2 with the length of 2cm-3cm are symmetrically arranged on the left side and the right side of the top of the right side hook type ladder head in the opposite direction (the opposite direction is the same as the structure of the former hook type ladder head), and the positions of the two hook type ladder heads can be interchanged.
The ladder head bottoms of the left side hook type ladder head 5 and the right side hook type ladder head 6 are provided with threads, and after the connecting sleeve 4 is inserted, the bottom of the connecting sleeve 4 is screwed and fixed by a nut 11.
The left side hook type ladder head 5 and the right side hook type ladder head 6 are provided with a limiting ring 8 for limiting the positions of the left side hook type ladder head 5 and the right side hook type ladder head 6 in the connecting sleeves 4 on the left side and the right side of the top of the ladder body. The limiting ring 8 can be arranged in a hexagon nut shape.
And the connecting sleeve 4 is provided with a locking and positioning screw 7, and the locking and positioning screw 7 is adopted for locking and positioning after the hook type ladder head is connected with the main body of the extension ladder through the connecting sleeves at the left side and the right side of the top of the ladder body 1.
Hasp formula ladder head and 1 junction of ladder body need rotate after inserting adapter sleeve according to hasp formula ladder head, and it is fixed to need hasp formula ladder head overlap joint part orientation again during the use, and the tapping that punches is located 25mm downwards in adapter sleeve 4 upper end, twists locking set screw 7 and fixes hasp formula ladder head.
The main body 1 of the extension ladder is made of glass fiber reinforced plastic, the whole ladder body is insulated, and the requirements of distribution safety regulation 7.3.7 that a metal ladder is forbidden to be used in a live area or a nearby live line of a power distribution station
When the overlapping type operation ladder for the distribution box on the rural power network column is used, the ladder body 1 of the main extension ladder body is firstly opened, and for an H-shaped outdoor box 9, the top of the left side hook type ladder head 5 and four small support rods 5-1 on the right side hook type ladder head 6 can be lapped in a channel steel groove below an outdoor box. For the 'h' -shaped outdoor box 10, the long support rod 6-1 of the right-lapping hook type ladder head 6 can be inserted into a hole of a rack at the bottom of the outdoor box to realize lapping, and then the bottom of the ladder body 1 is provided with the anti-skidding insulating ladder foot 3 to be placed stably, so that the special operation platform for the low-voltage platform area can be used for carrying out distribution transformation comprehensive distribution box maintenance operation.
The distribution transformer comprehensive distribution box maintenance operation is carried out through the special operation platform for the low-voltage distribution area, the consumed time is short, the average time from climbing to operation to returning is less than or equal to 4 minutes, and the expected effect is achieved.
The utility model provides a block terminal overlap joint formula operation ladder has installed insulating ladder foot of antiskid 3 on rural power grids post, and the whole ladder of 1 adoption glass steel material of ladder body is insulating, accords with the relevant regulation of ann's rule, and safe and reliable effectively prevents the emergence of electrocuteeing, ensures personal safety. The utility model provides a transformer outdoor distribution box operation ladder on post sound construction, stability can be better.

Claims (10)

1. A lapping type operation ladder for a distribution box on a rural power network column is characterized by comprising a telescopic ladder main body, a lapping type ladder head and anti-skidding insulating ladder feet;
the telescopic ladder main body is provided with a ladder body, and the left side and the right side of the top of the ladder body are provided with connecting sleeves connected with the hook type ladder heads;
the bottom of the ladder body is provided with anti-skid insulating ladder feet which are used for anti-skid and insulation of the outdoor distribution box operation ladder of the transformer on the column;
the hasp type ladder head is connected with the extension ladder main body through connecting sleeves on the left side and the right side of the top of the ladder body, the hasp type ladder head main bodies on the two sides are of a T-shaped structure, wherein short support rods I are symmetrically arranged on the left side and the right side of the top of the left side hasp type ladder head, and form an angle of 20 degrees with the horizontal plane; the right side hook-lapping ladder head is arranged at the joint of the T-shaped transverse component and the longitudinal component, a long support rod is arranged in the direction perpendicular to the two parts, and short support rods II are symmetrically arranged on the left side and the right side of the top of the right side hook-lapping ladder head in opposite directions.
2. The rural power network column distribution box lap joint type operation ladder according to claim 1, wherein the ladder body is composed of a plurality of sections, the ladder body is of a rod type telescopic structure, and after the ladder body is completely pulled open, the distance between every two sections is 30-35 cm.
3. The rural power network pole upper distribution box lap joint type operation ladder according to claim 1, wherein the lowest working height of the extension ladder main body is about 1.5m, and the highest working height of the extension ladder main body is about 4 m.
4. The rural power network column distribution box lap joint type operation ladder according to claim 1, wherein each section of the ladder body is provided with a pedal for ascending and descending.
5. The overlapping type operation ladder for distribution boxes on rural power grids of claim 1, wherein the length of the long strut is 6cm-7cm, and the length of the first short strut and the second short strut is 2cm-3 cm.
6. The rural power network column distribution box lap joint type operation ladder according to claim 1, wherein locking and positioning screws are arranged on the connecting sleeves, and when the lap joint type ladder head is connected with the extension ladder main body through the connecting sleeves on the left side and the right side of the top of the ladder body, the locking and positioning screws are adopted for locking and positioning.
7. The rural power network column distribution box lap joint type operation ladder according to claim 1, wherein the joint of the hasp type ladder head and the ladder body needs to rotate after the hasp type ladder head is inserted into the connecting sleeve, the lap joint part of the hasp type ladder head needs to be fixed in the orientation direction during use, a hole is punched and tapped at a position 25mm below the upper end of the connecting sleeve, and a locking positioning screw is screwed in to fix the hasp type ladder head.
8. The overlapping type operation ladder for distribution boxes on rural power grids of claim 1, wherein the bottoms of the ladder heads of the left side hook type ladder head and the right side hook type ladder head are provided with threads, and after the connecting sleeve is inserted, the bottom of the connecting sleeve is screwed and fixed by nuts.
9. The rural power network column distribution box lap joint type operation ladder according to claim 1, wherein a ladder body of the extension ladder main body is made of glass fiber reinforced plastic, and the whole ladder body is insulated.
10. The rural power network column distribution box lap joint type operation ladder as claimed in claim 1, wherein the left side hook type ladder head and the right side hook type ladder head are provided with limiting rings for limiting the positions of the left side hook type ladder head and the right side hook type ladder head which are inserted into the connecting sleeves on the left side and the right side of the top of the ladder body.
CN201920601737.7U 2019-04-29 2019-04-29 Block terminal overlap joint formula operation ladder on rural power grids post Active CN209855692U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920601737.7U CN209855692U (en) 2019-04-29 2019-04-29 Block terminal overlap joint formula operation ladder on rural power grids post

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920601737.7U CN209855692U (en) 2019-04-29 2019-04-29 Block terminal overlap joint formula operation ladder on rural power grids post

Publications (1)

Publication Number Publication Date
CN209855692U true CN209855692U (en) 2019-12-27

Family

ID=68939781

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920601737.7U Active CN209855692U (en) 2019-04-29 2019-04-29 Block terminal overlap joint formula operation ladder on rural power grids post

Country Status (1)

Country Link
CN (1) CN209855692U (en)

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