CN209913347U - Quick-lap-joint maintenance ladder - Google Patents
Quick-lap-joint maintenance ladder Download PDFInfo
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- CN209913347U CN209913347U CN201920563505.7U CN201920563505U CN209913347U CN 209913347 U CN209913347 U CN 209913347U CN 201920563505 U CN201920563505 U CN 201920563505U CN 209913347 U CN209913347 U CN 209913347U
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Abstract
The utility model discloses an overhaul ladder capable of being quickly lapped, which comprises a ladder stand and a connecting frame, wherein the connecting frame is hinged with the ladder stand; the link includes the platform and sets up installation department and the first backstop portion in platform one side perpendicularly, the installation department with be equipped with the adjustment subassembly between the first backstop portion, the adjustment subassembly includes the adjustment portion, the adjustment portion with the link is connected, the adjustment portion can remove in order to press from both sides tight transformer bearing cross arm to the installation department. Transformer bearing cross arm is taken with the link with the cat ladder, and the maintainer climbs to the platform through the cat ladder, will overhaul equipment and place on the platform, adjusts adjusting part and presss from both sides tight transformer bearing cross arm, alright begin maintenance work, and it is convenient to overhaul, reduces labour and operating time, improves work efficiency, and the security is higher during the maintainer operation.
Description
Technical Field
The utility model relates to a transformer overhauls technical field, concretely relates to lapped maintenance ladder fast.
Background
With the gradual increase of the power transmission and transformation voltage of a power grid, a large-capacity outdoor transformer with the voltage level of thirty-five kilovolts or more is more and more popular in application. Thirty-five kilovolt and above large-capacity main transformers are generally installed at a higher place due to larger appearance, referring to fig. 1, most of the existing distribution transformers are only fixed by steel stranded wires in an 8 shape and placed on a transformer bearing I-shaped steel 81. Because the height is too high, when the staff overhauls and maintains the transformer, the staff need to overhaul the personnel and arrive the mounted position of transformer, and the maintenance equipment that will carry is arranged in maintenance workstation 82, just can further overhaul and maintain. The existing maintenance operation mode has the following problems that firstly, maintenance workers need to climb the pole, the labor force and the working time are increased, and the working efficiency is reduced; secondly, the maintenance workbench 82 is narrow, so that the maintenance equipment is inconvenient to use. Generally, the inspection personnel have high danger during operation.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned deficiencies or inadequacies in the prior art, it would be desirable to provide a quick-lap access ladder.
In order to overcome the deficiency of the prior art, the utility model provides a technical scheme is:
the utility model provides a but quick lapped maintenance ladder, its special character lies in: the ladder stand comprises a ladder stand and a connecting frame, wherein the connecting frame is hinged with the ladder stand;
the link includes the platform and sets up installation department and the first backstop portion in platform one side perpendicularly, the installation department with be equipped with the adjustment subassembly between the first backstop portion, the adjustment subassembly includes the adjustment portion, the adjustment portion with the link is connected, the adjustment portion can remove in order to press from both sides tight transformer bearing cross arm to the installation department.
Furthermore, the adjusting part is an L-shaped structure matched with the shape of the transformer bearing cross arm, the adjusting assembly further comprises a first connecting part fixedly arranged on the adjusting part, and the first connecting part penetrates through the platform and can move and be fixed in the direction perpendicular to the platform.
Furthermore, a first limiting structure is arranged on a part of the first connecting part, which penetrates through the platform, and a first elastic connecting piece is arranged on a part between the first limiting structure and the platform.
Further, the adjusting assembly further comprises a second connecting portion fixedly arranged on the adjusting portion, and the second connecting portion penetrates through the first stopping portion, can move in a direction perpendicular to the first stopping portion, and is fixed.
Furthermore, a second limiting structure is arranged on the part, penetrating through the first stopping part, of the end part of the second connecting part, and a second elastic connecting piece is arranged on the part, located between the first stopping part and the adjusting part.
Furthermore, the adjusting assembly further comprises a quick release bolt, the second connecting portion is provided with a plurality of through holes for the quick release bolt to pass through, the quick release bolt is inserted into the portion, located between the first stopping portion and the second limiting structure, of the second connecting portion, and the distance between every two adjacent through holes is smaller than or equal to one third of the transverse edge of the L-shaped structure of the first stopping portion.
Furthermore, the connecting frame further comprises a second stopping portion, the second stopping portion is arranged on one side, away from the adjusting portion, of the first stopping portion at intervals, and the quick-release plug pin is inserted in a portion, located between the first stopping portion and the second stopping portion, of the second connecting portion.
Furthermore, an operating handle is arranged on the part of the second connecting part extending out of the second stopping part.
Furthermore, the mounting part is an L-shaped structure matched with the shape of the transformer bearing cross arm, and an adjusting bolt is arranged on the cross edge of the L-shaped structure of the first stopping part.
Furthermore, the end of the adjusting bolt is provided with a damage-proof gasket.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses an access ladder capable of being rapidly lapped comprises a ladder stand and a connecting frame, wherein the connecting frame is hinged with the ladder stand; the link includes the platform and sets up installation department and the first backstop portion in platform one side perpendicularly, the installation department with be equipped with the adjustment subassembly between the first backstop portion, the adjustment subassembly includes the adjustment portion, the adjustment portion with the link is connected, the adjustment portion can remove in order to press from both sides tight transformer bearing cross arm to the installation department. The transformer bearing cross arm is taken with the support to the cat ladder, and the maintainer climbs to the platform through the cat ladder, will overhaul equipment and place on the platform, adjust adjustment subassembly clamp transformer bearing cross arm, alright begin maintenance work, it is convenient to overhaul, reduces labour and operating time, improves work efficiency, and the security is higher during the maintainer operation.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic view of an existing quick-lap access ladder;
fig. 2 is a schematic view of an inspection ladder capable of being quickly lapped according to an embodiment of the present invention;
fig. 3 is a schematic structural view of an inspection ladder capable of being quickly lapped provided by the embodiment of the present invention;
fig. 4 is a schematic structural diagram of an adjusting assembly according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a connection frame according to an embodiment of the present invention;
fig. 6 is a schematic structural view of a ladder stand provided by an embodiment of the present invention.
In the figure: 1-ladder stand, 2-connecting frame, 3-adjusting component, 4-transformer bearing cross arm, 11-rotating shaft, 21-platform, 22-mounting part, 23-first stopping part, 24-second stopping part, 25-adjusting bolt, 26-damage prevention gasket, 27-mounting hole, 31-adjusting part, 32-first connecting part, 33-second connecting part, 34-first elastic connecting part, 35-second elastic connecting part, 36-first limiting structure, 37-second limiting structure, 38-operating handle, 81-bearing I-steel and 82-maintenance workbench.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept by those skilled in the art with reference to specific embodiments.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
As mentioned in the background art, most distribution transformers are currently installed by fixing steel strands only in an 8-shaped manner and placing the steel strands on a load-bearing cross arm of the transformer. Because the height is too high, when the staff overhauls and maintains the transformer, the staff need the maintainer to reach the mounted position of transformer, and the maintenance equipment that will carry is arranged in and is overhauld the mesa, just can further overhaul and maintain. The existing maintenance operation mode has the following problems that firstly, maintenance workers need to climb the pole, the labor force and the working time are increased, and the working efficiency is reduced; secondly, the overhaul working table is narrow and small, so that the overhaul equipment is very inconvenient to use. Generally, the inspection personnel have high danger during operation.
Referring to fig. 2 to 6, the utility model provides an access ladder capable of being quickly lapped, which comprises a ladder stand 1 and a connecting frame 2, wherein the connecting frame 2 is hinged with the ladder stand 1; the connecting frame 2 comprises a platform 21, and an installation part 22 and a first stopping part 23 which are vertically arranged on one side of the platform 21, an adjustment component 3 is arranged between the installation part 22 and the first stopping part 23, the adjustment component 3 comprises an adjustment part 31, the adjustment part 31 is connected with the connecting frame 2, and the adjustment part 31 can move towards the installation part 22 to clamp the transformer bearing cross arm 4.
The maintenance auxiliary device is not limited to a transformer of one type, the distance between two channel steels of the transformer bearing cross arm 4 of transformers of different types is different, the distance between two channel steels of the transformer bearing cross arm 4 of different types is measured, and the maximum distance between the adjusting part 31 and the mounting part 22 is larger than the maximum distance between two channel steels of the transformer bearing cross arm 4 of different types. During the in-service use with cat ladder 1 will overhaul auxiliary device's installation department 22 on a channel-section steel of transformer bearing cross arm 4, the maintainer climbs to platform 21 through cat ladder 1, places maintenance equipment on platform 21, adjusts another channel-section steel that adjusting part 3 presss from both sides tight transformer bearing cross arm 4, alright start maintenance work.
It should be noted that the connecting frame 2 is hinged to the side surface of the ladder stand 1, the hinge connection is specifically that the ladder stand 1 is provided with the rotating shaft 11, the connecting frame 2 is provided with the mounting hole 27, the rotating shaft 11 is inserted into the mounting hole 27, and the included angle between the connecting frame 2 and the ladder stand 1 is adjusted according to the height to be climbed by the maintainer.
As an implementation manner, the adjusting part 31 is an "L" shaped structure adapted to the shape of the transformer load-bearing cross arm 4, the adjusting assembly 3 further includes a first connecting part 32 fixedly disposed on the adjusting part 31, and the first connecting part 32 penetrates through the platform 21, and is capable of moving and fixing in a direction perpendicular to the platform 21.
By moving the position of the first connecting portion 32, the longitudinal distance between the "L" shaped structure of the adjusting portion 31 and the transformer load bearing cross arm 4 can be adjusted to adapt to transformer load bearing cross arms 4 of different specifications.
In an implementation manner, a first limiting structure 36 is disposed on a portion of the first connecting portion 32 penetrating through the platform 21, and a first elastic connecting element 34 is disposed on a portion between the first limiting structure 36 and the platform 21.
When the longitudinal distance between the L-shaped structure of the adjusting part 31 and the transformer bearing cross arm 4 is adjusted, the first elastic connecting part 34 can provide an upward pulling force for the first connecting part 32, so that the L-shaped structure of the adjusting part 31 automatically rebounds to be attached to the transformer bearing cross arm 4, and then the adjusting part 31 is fixed at the position without manual adjustment, thereby saving time.
The adjusting assembly 3 further includes a second connecting portion 33 fixedly disposed on the adjusting portion 31, and the second connecting portion 33 passes through the first stopping portion 23 and can move and be fixed in a direction perpendicular to the first stopping portion 23.
By moving the position of the second connecting portion 33, the lateral distance between the "L" shaped structure of the adjusting portion 31 and the transformer load bearing cross arm 4 can be adjusted to adapt to transformer load bearing cross arms 4 of different specifications.
A second limiting structure 37 is arranged on the part of the end of the second connecting part 33 passing through the first stopping part 23, and a second elastic connecting piece 35 is arranged on the part between the first stopping part 23 and the adjusting part 31.
When the transverse distance between the L-shaped structure of the adjusting part 31 and the transformer bearing cross arm 4 is adjusted, the second elastic connecting piece 35 can provide a pushing force towards the mounting part 22 for the second connecting part 33, so that the L-shaped structure of the adjusting part 31 automatically rebounds to be attached to the transformer bearing cross arm 4, and then the adjusting part 31 is fixed at the position without manual adjustment, thereby saving time.
It should be noted that the end of the second connecting portion 33 is a rod-shaped structure, the second limiting structure 37 is an end of the rod-shaped structure larger than the rod body, and the elastic connecting member is disposed on a spring of the rod section between the first stopping portion 23 and the adjusting portion 31.
As an implementation manner, the adjusting assembly 3 further includes a quick release pin, the second connecting portion 33 is provided with a plurality of through holes for the quick release pin to pass through, the quick release pin is inserted into a portion of the second connecting portion 33 between the first stopping portion 23 and the second limiting structure 37, and a distance between two adjacent through holes is less than or equal to one third of a transverse edge of the "L" shaped structure of the first stopping portion 23.
The fixing of the adjusting unit 31 means: when the L-shaped structure of the adjusting part 31 is automatically rebounded to be attached to the bearing cross arm 4 of the transformer, the quick-release bolt is inserted into the through hole arranged close to the first stopping part 23. The distance between two adjacent through holes is set to be less than or equal to one third of the transverse edge of the L-shaped structure of the first stopping portion 23, so as to ensure the safety and stability of the platform 21 during the setting process of the quick release pin. When the quick detach bolt can not insert when the through-hole site just pushes up tightly, two thirds's safe space is left, guarantees that adjustment portion 31 can not drop from the channel-section steel of transformer bearing cross arm 4.
The connecting frame 2 further includes a second stopping portion 24, the second stopping portion 24 is disposed on one side of the first stopping portion 23 away from the adjusting portion 31 at intervals, and the quick release pin is inserted into a portion of the second connecting portion 33 between the first stopping portion 23 and the second stopping portion 24.
The connecting frame 2 is subjected to a transverse force in the using process, the quick release bolt can be bent and is inconvenient to take out during disassembly, and the second stopping portion 24 can provide a larger stress surface for the quick release bolt, so that the quick release bolt is not easy to bend.
As an embodiment, an operating handle 38 is disposed on a portion of the second connecting portion 33 extending out of the second blocking portion 24.
When the connecting frame 2 is dismantled, and the quick-dismantling bolt is not easy to take out due to the transverse force, the whole adjusting assembly 3 can be pried by the operating handle 38, so that the purpose of quickly dismantling the quick-dismantling bolt is achieved.
As an embodiment, the mounting portion 22 is an "L" shaped structure adapted to the shape of the transformer load-bearing cross arm 4, and the lateral edge of the "L" shaped structure of the first stopping portion 23 is provided with an adjusting bolt 25.
During the use process, the adjusting bolts 25 are tightened to longitudinally clamp the transformer bearing cross arms 4 with different specifications.
As an embodiment, the end of the adjusting bolt 25 is provided with a damage-proof washer 26.
The cross-sectional area of the damage prevention gasket 26 is larger than that of the adjusting bolt 25, and the damage prevention gasket 26 is made of rubber. The contact area with the transformer bearing cross arm 4 can be increased during the tightening process of the adjusting bolt 25, so that the transformer bearing cross arm is protected.
It should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the above preferred embodiment, but not to limit the present invention, any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, and any simple modification, equivalent change and modification made to the above embodiments by the technical spirit of the present invention still fall within the scope of the present invention.
Claims (10)
1. The utility model provides a but quick lapped maintenance ladder which characterized in that: the ladder stand comprises a ladder stand and a connecting frame, wherein the connecting frame is hinged with the ladder stand;
the link includes the platform and sets up installation department and the first backstop portion in platform one side perpendicularly, the installation department with be equipped with the adjustment subassembly between the first backstop portion, the adjustment subassembly includes the adjustment portion, the adjustment portion with the link is connected, the adjustment portion can remove in order to press from both sides tight transformer bearing cross arm to the installation department.
2. The quick lap access ladder of claim 1, wherein:
the adjusting part is an L-shaped structure matched with the shape of the transformer bearing cross arm, the adjusting assembly further comprises a first connecting part fixedly arranged on the adjusting part, and the first connecting part penetrates through the platform and can move and be fixed in the direction perpendicular to the platform.
3. The quick lap access ladder of claim 2, wherein:
the first connecting part penetrates through the platform, a first limiting structure is arranged on the part of the platform, and a first elastic connecting piece is arranged on the part between the first limiting structure and the platform.
4. A quick-lap access ladder according to any one of claims 1 to 3, characterised in that:
the adjusting assembly further comprises a second connecting part fixedly arranged on the adjusting part, and the second connecting part penetrates through the first stopping part and can move and be fixed along the direction perpendicular to the first stopping part.
5. The quick lap access ladder of claim 4, wherein:
the part of the end part of the second connecting part penetrating through the first stopping part is provided with a second limiting structure, and the part between the first stopping part and the adjusting part is provided with a second elastic connecting piece.
6. The quick lap access ladder of claim 5, wherein:
the adjusting assembly further comprises a quick-release bolt, the second connecting portion is provided with a plurality of through holes for the quick-release bolt to pass through, the quick-release bolt is inserted into the portion, located between the first stopping portion and the second limiting structure, of the second connecting portion, and the distance between every two adjacent through holes is smaller than or equal to one third of the transverse edge of the L-shaped structure of the first stopping portion.
7. The quick lap access ladder of claim 6, wherein:
the connecting frame further comprises a second stopping portion, the second stopping portion is arranged on one side, away from the adjusting portion, of the first stopping portion at intervals, and the quick-release bolt is inserted into a portion, located between the first stopping portion and the second stopping portion, of the second connecting portion.
8. The quick lap access ladder of claim 7, wherein: and an operating handle is arranged on the part of the second connecting part extending out of the second stopping part.
9. The quick lap access ladder of claim 1, wherein:
the mounting part is an L-shaped structure matched with the shape of the transformer bearing cross arm, and an adjusting bolt is arranged on the cross edge of the L-shaped structure of the first stopping part.
10. The quick lap access ladder of claim 9, wherein:
and the end part of the adjusting bolt is provided with a loss-proof gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920563505.7U CN209913347U (en) | 2019-04-24 | 2019-04-24 | Quick-lap-joint maintenance ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920563505.7U CN209913347U (en) | 2019-04-24 | 2019-04-24 | Quick-lap-joint maintenance ladder |
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| Publication Number | Publication Date |
|---|---|
| CN209913347U true CN209913347U (en) | 2020-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920563505.7U Active CN209913347U (en) | 2019-04-24 | 2019-04-24 | Quick-lap-joint maintenance ladder |
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| CN (1) | CN209913347U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219581A (en) * | 2019-04-24 | 2019-09-10 | 贵州电网有限责任公司 | It is a kind of can quick lap joint maintenance ladder |
| CN113478427A (en) * | 2021-05-18 | 2021-10-08 | 上海市安装工程集团有限公司 | Internal corner flange fastening device for air pipe of air pipe well |
-
2019
- 2019-04-24 CN CN201920563505.7U patent/CN209913347U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219581A (en) * | 2019-04-24 | 2019-09-10 | 贵州电网有限责任公司 | It is a kind of can quick lap joint maintenance ladder |
| CN113478427A (en) * | 2021-05-18 | 2021-10-08 | 上海市安装工程集团有限公司 | Internal corner flange fastening device for air pipe of air pipe well |
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