CN114575738A - Tool for automobile inspection and maintenance - Google Patents
Tool for automobile inspection and maintenance Download PDFInfo
- Publication number
- CN114575738A CN114575738A CN202210197645.3A CN202210197645A CN114575738A CN 114575738 A CN114575738 A CN 114575738A CN 202210197645 A CN202210197645 A CN 202210197645A CN 114575738 A CN114575738 A CN 114575738A
- Authority
- CN
- China
- Prior art keywords
- center line
- support
- rotation center
- foldable
- bottom bracket
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007689 inspection Methods 0.000 title claims abstract description 11
- 238000012423 maintenance Methods 0.000 title claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims description 38
- 230000008901 benefit Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C1/00—Ladders in general
- E06C1/02—Ladders in general with rigid longitudinal member or members
- E06C1/38—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
- E06C1/383—Foldable ladders in which the longitudinal members are brought together on folding
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/08—Special construction of longitudinal members, or rungs or other treads
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Handcart (AREA)
Abstract
The invention provides a tool for automobile inspection and maintenance, which comprises: a bottom bracket extending in a front-rear direction; the wheel assembly is rotationally arranged at the bottom of the bottom bracket; the auxiliary assembly is rotatably arranged on the bottom bracket and can be unfolded and folded relative to the bottom bracket; the auxiliary assembly includes: a support plate, one end part of which in the length direction is rotatably arranged at the rear part of the bottom bracket around a rotation center line extending along the left-right direction; and a foldable bracket, one end part of the foldable bracket in the length direction is rotatably arranged at the front part of the bottom bracket around a rotation central line extending along the left-right direction, and the other end part of the foldable bracket is rotatably arranged at the other end part of the supporting flat plate which is not rotatably connected with the bottom bracket around a rotation central line extending along the left-right direction. The tool can meet the requirements of checking and maintaining parts and pipelines positioned at the bottom of the automobile and can meet the requirements of checking and maintaining parts and pipelines positioned at the upper part of the automobile.
Description
Technical Field
The embodiment of the invention relates to the technical field of automobiles, in particular to a tool for automobile inspection and maintenance.
Background
When an automobile is inspected and repaired, not only various parts and pipelines located at the bottom of the automobile need to be inspected and repaired, but also parts and pipelines located at the upper part of the automobile need to be inspected. When inspecting and repairing the upper part of the automobile, it is often difficult for the service personnel to reach the parts and pipelines located in the upper part of the automobile.
The existing tool can only meet the requirements of a maintainer on checking and maintaining parts and pipelines at the bottom of an automobile or can only meet the requirements of the maintainer on checking and maintaining parts and pipelines at the upper part of the automobile.
Disclosure of Invention
The embodiment of the invention provides a tool for automobile inspection and maintenance, which is used for solving the problem that the existing tool cannot meet the requirements of inspection and maintenance personnel on the bottom and the upper part of an automobile.
In order to solve the technical problem, the invention is realized as follows: a tool for automobile inspection and maintenance, the tool comprising:
a bottom bracket extending in a front-to-rear direction;
a wheel assembly rotatably disposed at a bottom of the bottom bracket;
the auxiliary assembly is rotatably arranged on the bottom bracket and can be unfolded and folded relative to the bottom bracket;
the auxiliary assembly comprises:
a support plate, one end part of which in the length direction is rotatably arranged at the rear part of the bottom bracket around a rotation center line extending along the left-right direction;
a foldable bracket which is provided at a front portion of the bottom bracket at one end portion in a length direction thereof so as to be rotatable about a rotation center line extending in a left-right direction, and at the other end portion of the support flat plate which is not rotatably connected to the bottom bracket, so as to be rotatable about a rotation center line extending in a left-right direction;
when the auxiliary component is in the unfolded state, the foldable support extends obliquely from front to back and upwards, and the support flat plate extends along the up-and-down direction; when the auxiliary assembly is in the folded state, the supporting flat plate and the bottom bracket are relatively folded, and the foldable bracket is folded between the supporting flat plate and the bottom bracket in the up-down direction.
Preferably, the foldable support includes a first support and a second support, one end of the first support in the length direction is rotatably disposed at the front of the base support around a first rotation center line, one end of the second support in the length direction is rotatably disposed on the support plate around a second rotation center line, the other end of the first support and the other end of the second support are rotatably disposed together around a third rotation center line, and the first rotation center line, the second rotation center line and the third rotation center line all extend in the left-right direction and are parallel to each other.
Further, when the auxiliary assembly is in the unfolded state, the first frame body and the second frame body both extend obliquely from front to back and upwards, and the first frame body and the second frame body extend along the same length direction; when the auxiliary assembly is in the folded state, the first frame body and the second frame body are relatively folded in the up-down direction.
Further, the foldable support further comprises a foldable pedal, the foldable pedal can be relatively unfolded or relatively folded along the length extension direction of the foldable pedal, one end part of the foldable pedal in the length extension direction is rotatably arranged on the bottom support around the first rotation center line, the other end part of the foldable pedal is rotatably arranged on the support flat plate around the second rotation center line, when the auxiliary assembly is in the unfolded state, the foldable pedal is relatively unfolded, and the foldable pedal forms a stepping support part for a user to step on; when the auxiliary assembly is in the folded state, the folded pedal is relatively folded.
Still further, the foldable stand further comprises a first locking mechanism for locking the foldable step in a relatively unfolded state.
In a preferred embodiment, the foldable stand further comprises a second locking mechanism for locking the first stand and the second stand relative to each other when the auxiliary assembly is in the unfolded state.
Further preferably, the second locking mechanism includes:
the first interface seat is fixedly arranged at the upper end part of the first frame body;
the second interface seat is fixedly arranged at the lower end part of the second frame body, and the first interface seat and the second interface seat surround to form a locking groove extending along the left-right direction;
a locking piece which is slidably fitted in the locking groove in a length direction thereof;
when the second locking mechanism is in a locked state, the locking piece is arranged in the locking groove in a sliding fit manner; when the second locking mechanism is in an unlocked state, the locking piece is disengaged from the locking groove.
Still further preferably, when the second lock mechanism is in the locked state, the lock member has a round bar shape extending in the left-right direction.
Preferably, the wheel assembly comprises:
a front wheel assembly rotatably disposed at a bottom front portion of the bottom bracket;
a rear wheel assembly rotatably disposed at a bottom rear portion of the bottom bracket;
the wheel locking mechanism is arranged on the rear wheel assembly and can lock the rear wheel assembly.
Preferably, when the auxiliary assembly is in the folded state, the length extension direction of the support plate and the length extension direction of the bottom bracket are parallel to each other.
The tool provided by the invention can meet the requirements of a maintainer on checking and maintaining parts and pipelines at the bottom of an automobile and can also meet the requirements of the maintainer on checking and maintaining parts and pipelines at the upper part of the automobile.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a schematic side view of a tool of an embodiment of the invention with the auxiliary assembly in an extended position;
FIG. 2 is a schematic side view of a tool of an embodiment of the present invention during transition of an auxiliary assembly from an unfolded state to a folded state;
FIG. 3 is a side view of the tooling of an embodiment of the present invention with the auxiliary assemblies in a folded position;
wherein:
1. a bottom bracket;
2. a wheel assembly; 21. a front wheel assembly; 22. a rear wheel assembly; 23. a wheel locking mechanism;
3. an auxiliary component; 31. supporting the flat plate; 32. a foldable support; 321. a first frame body; 322. a second frame body; 323. folding the pedal; 324. a first locking mechanism; 325. a second locking mechanism; 325a, a first interface seat; 325b, a second interface seat; 325c, a locking member;
a. a first rotational centerline; b. a second center of rotation; c. a third center of rotation.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 3, an embodiment of the present invention provides a tool for vehicle inspection and maintenance, where the tool includes:
a bottom bracket 1, the bottom bracket 1 extending along the front-back direction;
the wheel assembly 2 is rotatably arranged at the bottom of the bottom bracket 1;
the auxiliary assembly 3 is rotatably arranged on the bottom bracket 1, and the auxiliary assembly 3 can be unfolded and folded relative to the bottom bracket 1;
the auxiliary component 3 comprises:
a support plate 31, one end part of the support plate 31 in the length direction is arranged at the rear part of the bottom bracket 1 in a way of rotating around a rotation center line extending along the left-right direction;
a foldable bracket 32, one end portion of the foldable bracket 32 in the length direction being rotatably provided on the front portion of the bottom bracket 1 about a rotation center line extending in the left-right direction, and the other end portion being rotatably provided on the other end portion of the support flat plate 31 not rotatably connected to the bottom bracket 1 about a rotation center line extending in the left-right direction;
when the auxiliary assembly 3 is in the unfolded state, the foldable support 32 extends obliquely upward from front to back, and the support plate 31 extends in the up-down direction; when the auxiliary assembly 3 is in the folded state, the supporting plate 31 and the bottom bracket 1 are folded relatively, and the foldable bracket 32 is folded between the supporting plate 31 and the bottom bracket 1 in the up-down direction.
When the spare part and the pipeline that lie in the car bottom need be examined and repaired, adjust auxiliary assembly 3 to being in fold condition, at this moment, support flat board 31 constitutes the support portion of lying that provides the support of lying to the user, after for the user lies, can utilize wheel subassembly 2 to push user to the car bottom. When the parts and pipelines on the upper part of the automobile need to be inspected and repaired, the auxiliary assembly 3 is adjusted to be in the unfolding state, and at the moment, a user can go to a high place through the foldable bracket 32 which obliquely extends from front to back upwards, so that the inspection and repair tasks can be conveniently completed.
In some embodiments of the present invention, optionally, the foldable stand 32 includes a first stand 321 and a second stand 322, one end of the first stand 321 in the length direction is rotatably disposed at the front of the base stand 1 around a first rotation center line a, one end of the second stand 322 in the length direction is rotatably disposed on the support plate 31 around a second rotation center line b, the other end of the first stand 321 and the other end of the second stand 322 are rotatably disposed together around a third rotation center line c, and all three of the first rotation center line a, the second rotation center line b and the third rotation center line c extend in the left-right direction and are parallel to each other.
In some embodiments of the present invention, optionally, when the auxiliary assembly 3 is in the unfolded state, the first frame 321 and the second frame 322 both extend obliquely from front to back and upwards, and the first frame 321 and the second frame 322 extend along the same length direction; when the auxiliary assembly 3 is in the folded state, the first frame 321 and the second frame 322 are relatively folded in the up-down direction.
In some embodiments of the present invention, optionally, the foldable stand 32 further includes a folding pedal 323, the folding pedal 323 can be relatively unfolded or relatively folded along a length extending direction thereof, one end portion of the folding pedal 323 in the length extending direction is rotatably disposed on the bottom stand 1 around a first rotation center line a, the other end portion of the folding pedal 323 is rotatably disposed on the supporting plate 31 around a second rotation center line b, when the auxiliary assembly 3 is in the unfolded state, the folding pedal 323 is relatively unfolded, and the folding pedal 323 constitutes a stepping supporting portion for a user to step on; when the auxiliary assembly 3 is in the folded state, the folding pedal 323 is relatively folded.
In some embodiments of the present invention, optionally, when the folding pedal 323 is relatively opened, the folding pedal 323 forms a three-step structure, and a user can conveniently complete an inspection and maintenance task by traveling to a high place through the three-step structure; the user can also stay on one of the steps, is suitable for the height of the specific part to be inspected and maintained and the pipeline, and is convenient to operate.
In some embodiments of the present invention, optionally, foldable stand 32 further comprises a first locking mechanism 324, and first locking mechanism 324 is used to lock foldable pedal 323 in a relatively open state.
In some embodiments of the present invention, optionally, the first locking mechanisms 324 have three sets, and the three sets of first locking mechanisms 324 are respectively disposed on the three steps. The first locking mechanism 324 may be an existing locking mechanism, or may be a novel locking mechanism that is not disclosed, and the specific structure of the first locking mechanism 324 is not a protection point of the present invention, and is not described herein again.
In some embodiments of the present invention, optionally, the foldable support 32 further comprises a second locking mechanism 325, and the second locking mechanism 325 is used for locking the first frame 321 and the second frame 322 relatively when the auxiliary assembly 3 is in the unfolded state.
Referring to fig. 1, the second locking mechanism 325 includes:
a first interface seat 325a, the first interface seat 325a being fixedly disposed at an upper end portion of the first frame body 321;
a second interface seat 325b, the second interface seat 325b being fixedly disposed at a lower end of the second frame 322, the first interface seat 325a and the second interface seat 325b enclosing to form a locking groove (not shown) extending in the left-right direction;
a locking piece 325c, the locking piece 325c being slidably fitted in a locking groove (not shown in the figure) in a length direction of the locking groove (not shown in the figure);
when the second locking mechanism 325 is in the locked state, the locking piece 325c is disposed in the locking groove (not shown in the drawings) in a sliding fit; when the second locking mechanism 325 is in the unlocked state, the locking piece 325c is disengaged from the locking groove (not shown).
In some embodiments of the present invention, optionally, the first interface seat 325a is fixedly disposed on the upper end portion of the first frame 321, the second interface seat 325b is fixedly disposed on the lower end portion of the second frame 322, when the second locking mechanism 325 is in the locking state, the locking member 325c has a round bar shape extending along the left-right direction, and the axis of the locking member 325c extends in a collinear manner with the third rotation center line c.
In some embodiments of the invention, optionally, the wheel assembly 2 comprises:
a front wheel assembly 21, the front wheel assembly 21 is rotatably arranged at the bottom front part of the bottom bracket 1;
a rear wheel assembly 22, the rear wheel assembly 22 is rotatably arranged at the bottom rear part of the bottom bracket 1;
and a wheel locking mechanism 23, wherein the wheel locking mechanism 23 is provided on the rear wheel assembly 22, and the wheel locking mechanism 23 can lock the rear wheel assembly 22. The wheel locking mechanism 23 may be an existing locking mechanism, or may be a novel locking mechanism that is not disclosed, and the specific structure of the wheel locking mechanism 23 is not a protection point of the present invention, and is not described herein again.
In some embodiments of the present invention, optionally, when the auxiliary assembly 3 is in the folded state, the length extension direction of the support plate 31 and the length extension direction of the bottom bracket 1 are parallel to each other. The above arrangement enables the support plate 31 to provide a comfortable lying support for the user.
In conclusion, the tool disclosed by the invention can meet the requirements of examining and repairing parts and pipelines at the bottom of the automobile by an inspector, can also meet the requirements of examining and repairing parts and pipelines at the upper part of the automobile by the inspector, and is simple in structure and convenient to use.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. The utility model provides a frock for auto inspection maintenance which characterized in that: the frock includes:
a bottom bracket extending in a front-to-rear direction;
a wheel assembly rotatably disposed at a bottom of the bottom bracket;
the auxiliary assembly is rotatably arranged on the bottom bracket and can be unfolded and folded relative to the bottom bracket;
the auxiliary assembly includes:
a support plate, one end part of which in the length direction is rotatably arranged at the rear part of the bottom bracket around a rotation center line extending along the left-right direction;
a foldable bracket which is provided at a front portion of the bottom bracket at one end portion in a length direction thereof so as to be rotatable about a rotation center line extending in a left-right direction, and at the other end portion of the support flat plate which is not rotatably connected to the bottom bracket, so as to be rotatable about a rotation center line extending in a left-right direction;
when the auxiliary component is in the unfolded state, the foldable support extends obliquely from front to back and upwards, and the support flat plate extends along the up-and-down direction; when the auxiliary assembly is in the folded state, the supporting flat plate and the bottom bracket are relatively folded, and the foldable bracket is folded between the supporting flat plate and the bottom bracket in the up-down direction.
2. The tooling of claim 1, wherein: the foldable support comprises a first support body and a second support body, one end portion in the length direction of the first support body is rotatably arranged around a first rotation center line on the front portion of the bottom support, one end portion in the length direction of the second support body is rotatably arranged around a second rotation center line on the supporting flat plate, the other end portion of the first support body and the other end portion of the second support body are rotatably arranged around a third rotation center line, the first rotation center line, the second rotation center line and the third rotation center line extend in the left-right direction, and the first rotation center line, the second rotation center line and the third rotation center line are parallel to each other.
3. The tooling of claim 2, wherein: when the auxiliary assembly is in the unfolded state, the first frame body and the second frame body both extend obliquely from front to back and upwards, and the first frame body and the second frame body extend along the same length direction; when the auxiliary assembly is in the folded state, the first frame body and the second frame body are relatively folded in the up-down direction.
4. The tooling of claim 2, wherein: the foldable support further comprises a foldable pedal, the foldable pedal can be relatively unfolded or relatively folded along the length extension direction of the foldable pedal, one end part of the foldable pedal in the length extension direction is rotatably arranged on the bottom support around the first rotation center line, the other end part of the foldable pedal is rotatably arranged on the support flat plate around the second rotation center line, when the auxiliary assembly is in the unfolded state, the foldable pedal is relatively unfolded, and the foldable pedal forms a stepping support part for a user to step on; when the auxiliary assembly is in the folded state, the folded pedal is relatively folded.
5. The tooling of claim 4, wherein: the foldable stand further includes a first locking mechanism for locking the foldable pedal in a relatively open state.
6. The tooling of any one of claims 2 to 5, wherein: the foldable support further comprises a second locking mechanism for locking the first support body and the second support body relatively when the auxiliary assembly is in the unfolded state.
7. The tooling of claim 6, wherein: the second locking mechanism includes:
the first interface seat is fixedly arranged at the upper end part of the first frame body;
the second interface seat is fixedly arranged at the lower end part of the second frame body, and the first interface seat and the second interface seat surround to form a locking groove extending along the left-right direction;
a locking piece which is slidably fitted in the locking groove in a length direction thereof;
when the second locking mechanism is in a locked state, the locking piece is arranged in the locking groove in a sliding fit manner; when the second locking mechanism is in an unlocked state, the locking piece is disengaged from the locking groove.
8. The tooling of claim 7, wherein: when the second locking mechanism is in a locked state, the locking member has a round bar shape extending in the left-right direction.
9. The tooling of claim 1, wherein: the wheel assembly includes:
a front wheel assembly rotatably disposed at a bottom front portion of the bottom bracket;
a rear wheel assembly rotatably disposed at a bottom rear portion of the bottom bracket;
the wheel locking mechanism is arranged on the rear wheel assembly and can lock the rear wheel assembly.
10. The tooling of claim 1, wherein: when the auxiliary assembly is in the folded state, the length extension direction of the support flat plate and the length extension direction of the bottom bracket are parallel to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210197645.3A CN114575738B (en) | 2022-03-02 | 2022-03-02 | Tool for automobile inspection and maintenance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210197645.3A CN114575738B (en) | 2022-03-02 | 2022-03-02 | Tool for automobile inspection and maintenance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114575738A true CN114575738A (en) | 2022-06-03 |
| CN114575738B CN114575738B (en) | 2024-03-01 |
Family
ID=81772124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210197645.3A Active CN114575738B (en) | 2022-03-02 | 2022-03-02 | Tool for automobile inspection and maintenance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114575738B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5072955A (en) * | 1990-08-10 | 1991-12-17 | Holland John C | Mechanic's helper and step platform |
| US6105719A (en) * | 1998-11-05 | 2000-08-22 | Rel Products Inc. | User-configurable mechanics stool |
| JP2004197414A (en) * | 2002-12-18 | 2004-07-15 | Nakao:Kk | Lifting implement with tread bar |
| KR200356582Y1 (en) * | 2004-04-22 | 2004-07-19 | 주식회사 다양테크 | A portable folding stairs |
| CN101975019A (en) * | 2010-11-03 | 2011-02-16 | 国网运行有限公司宜昌超高压管理处 | Portable insulation ladder used for disconnecting link and grounding brake observing windows of HGIS (Hypid Gas Insulated Switchgear) |
| CN203891739U (en) * | 2014-05-26 | 2014-10-22 | 中国民用航空飞行学院 | Multifunctional herringbone ladder |
| CN105781398A (en) * | 2016-04-22 | 2016-07-20 | 王红 | Folding type climbing ladder |
| CN206304052U (en) * | 2016-08-16 | 2017-07-07 | 吉首大学 | A kind of Multifunctional rescue stretcher |
| CN206530281U (en) * | 2017-01-13 | 2017-09-29 | 华中农业大学 | A kind of foldable multifunctional ladder |
-
2022
- 2022-03-02 CN CN202210197645.3A patent/CN114575738B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5072955A (en) * | 1990-08-10 | 1991-12-17 | Holland John C | Mechanic's helper and step platform |
| US6105719A (en) * | 1998-11-05 | 2000-08-22 | Rel Products Inc. | User-configurable mechanics stool |
| JP2004197414A (en) * | 2002-12-18 | 2004-07-15 | Nakao:Kk | Lifting implement with tread bar |
| KR200356582Y1 (en) * | 2004-04-22 | 2004-07-19 | 주식회사 다양테크 | A portable folding stairs |
| CN101975019A (en) * | 2010-11-03 | 2011-02-16 | 国网运行有限公司宜昌超高压管理处 | Portable insulation ladder used for disconnecting link and grounding brake observing windows of HGIS (Hypid Gas Insulated Switchgear) |
| CN203891739U (en) * | 2014-05-26 | 2014-10-22 | 中国民用航空飞行学院 | Multifunctional herringbone ladder |
| CN105781398A (en) * | 2016-04-22 | 2016-07-20 | 王红 | Folding type climbing ladder |
| CN206304052U (en) * | 2016-08-16 | 2017-07-07 | 吉首大学 | A kind of Multifunctional rescue stretcher |
| CN206530281U (en) * | 2017-01-13 | 2017-09-29 | 华中农业大学 | A kind of foldable multifunctional ladder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114575738B (en) | 2024-03-01 |
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