CN113250602A - Special extension type ladder rack for large boiler - Google Patents
Special extension type ladder rack for large boiler Download PDFInfo
- Publication number
- CN113250602A CN113250602A CN202110444830.3A CN202110444830A CN113250602A CN 113250602 A CN113250602 A CN 113250602A CN 202110444830 A CN202110444830 A CN 202110444830A CN 113250602 A CN113250602 A CN 113250602A
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- China
- Prior art keywords
- plate
- groove
- main
- main connecting
- yoke plate
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C9/00—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes
- E06C9/06—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes movably mounted
- E06C9/08—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes movably mounted with rigid longitudinal members
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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
- E06C7/08—Special construction of longitudinal members, or rungs or other treads
- E06C7/082—Connections between rungs or treads and longitudinal members
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
The invention relates to an extension type ladder frame special for a large boiler, which comprises a main frame body, wherein two parallel main connecting plates are hinged to the upper part of the main frame body, fixed ladder plates are uniformly distributed between the two main connecting plates along the vertical direction, and the left end and the right end of each fixed ladder plate are correspondingly hinged and connected with the two main connecting plates. The lower part of each main connecting plate is provided with a slot, a left yoke plate is slidably mounted in the slot positioned on the left side, and a right yoke plate is slidably mounted in the slot positioned on the right side; the left yoke plate is provided with a plate control assembly; the right yoke plate is provided with a locking component. The invention not only can automatically control and adjust the inclination angles of the fixed step plates, but also can control the fixed step plates to rotate and be fixed after adjustment, thereby achieving the effect of conveniently cushioning the height of a human, being suitable for the manual ascending under different environments and indirectly facilitating the manual maintenance of the spare parts on the boiler.
Description
Technical Field
The invention relates to the field of mechanical production, in particular to an extensible ladder frame special for a large boiler.
Background
Relevant important parts such as a safety valve, an exhaust hole, a water level controller, a main steam valve, coal gas saving and the like are arranged above the large boiler, and after the large boiler is used for a period of time, the parts need to be manually overhauled. However, the height of a large boiler is usually relatively high, and workers have to use corresponding escalators or steps of the boiler to overhaul the boiler in a climbing mode, but the mode of the traditional escalators or steps of the boiler is relatively fixed, the climbing angle is difficult to adjust, and even if the angle can be adjusted, the problem that the manual workers are difficult to climb due to the fact that the height of the bottom steps is too high after the adjustment is difficult to adjust is also difficult to solve.
Disclosure of Invention
The invention provides a special extended ladder rack for a large boiler, aiming at overcoming two defects in the prior art.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
the utility model provides a dedicated extension formula ladder frame of large-scale boiler, includes the body frame body, and body frame body upper portion articulates installs the main connecting plate of two parallels, has fixed ladder board along vertical direction equipartition between two main connecting plates, and both ends all correspond articulated linking to each other with two main connecting plates about every fixed ladder board.
The lower part of each main connecting plate is provided with a slot, a left yoke plate is slidably mounted in the slot positioned on the left side, and a right yoke plate is slidably mounted in the slot positioned on the right side; the left yoke plate is provided with a plate control assembly; the right yoke plate is provided with a locking component.
The right end of the main frame body is hinged with a hydraulic cylinder which is hinged with the main connecting plate on the right side; the upper end of the main frame body is provided with a terminal step plate.
The left connecting plate is uniformly provided with left grooves along the vertical direction, the plate control assembly comprises rotating shafts which are rotatably arranged in each left groove, and each rotating shaft is connected with a movable step plate and a straight gear through keys; the straight gear is meshed with a rack which is arranged on the inner side wall of the left groove in a vertical sliding mode, and the rack is connected with a first air cylinder which is fixedly arranged on the lower side wall of the left groove 6 a.
The right yoke plate has the right side along vertical direction equipartition and puts the groove, and the locking subassembly includes guide rail and No. two cylinders of equal fixed mounting on every right side puts groove lateral wall, and guide rail has U-shaped clamp mouth along horizontal direction slidable mounting, and U-shaped clamp mouth rear end is opened has the inclined groove, and inclined groove sliding fit has the spliced pole, and the spliced pole welding has the main slider that links to each other with No. two cylinders.
And a vertical groove for vertically and slidably mounting the main sliding block is formed in the side wall of the right groove.
The invention has the beneficial effects that:
the invention not only can automatically control and adjust the inclination angles of the fixed step plates, but also can control the fixed step plates to rotate and be fixed after adjustment, thereby achieving the effect of conveniently cushioning the height of a human, being suitable for the manual ascending under different environments and indirectly facilitating the manual maintenance of the spare parts on the boiler.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a front view of the present invention;
FIG. 2 is a perspective view of the present invention;
FIG. 3 is a perspective view of the left yoke plate, the plate control assembly, the right yoke plate and the locking assembly;
FIG. 4 is a left side view of the left yoke plate, the plate control assembly, the right yoke plate and the locking assembly;
FIG. 5 is a sectional view A-A of FIG. 4;
FIG. 6 is a cross-sectional view B-B of FIG. 4;
FIG. 7 is an enlarged view of a portion of FIG. 5 at I;
fig. 8 is a partial enlarged view at II of fig. 6.
In the figure: 1. a main frame body; 2. a terminal step plate; 3. a hydraulic cylinder; 4. a main connection plate; 5. fixing the step plate; 6. a left yoke plate; 7. a right yoke plate; 8. a rotating shaft; 9. a movable step plate; 10. a guide rail; 11. a U-shaped clamping opening; 12. connecting columns; 13. a first cylinder; 14. a rack; 15. a spur gear; 16. a main slider; 17. and a second cylinder.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be described more clearly and more completely with reference to the drawings in the following embodiments, and it is understood that the described embodiments are only a part of the present invention, rather than all of the present invention, and based on the embodiments, other embodiments obtained by those skilled in the art without inventive exercise are within the protection scope of the present invention.
As shown in fig. 1 to 8, a special extension ladder frame for large boilers comprises a main frame body 1, wherein two parallel main connecting plates 4 are hinged to the upper portion of the main frame body 1, fixed ladder plates 5 are uniformly distributed between the two main connecting plates 4 along the vertical direction, and the left end and the right end of each fixed ladder plate 5 are correspondingly hinged to the two main connecting plates 4.
The lower part of each main connecting plate 4 is provided with a slot, a left yoke plate 6 is slidably arranged in the slot on the left side, and a right yoke plate 7 is slidably arranged in the slot on the right side; the left yoke plate 6 is provided with a plate control assembly; the right yoke plate 7 is provided with a locking assembly.
The right end of the main frame body 1 is hinged with a hydraulic cylinder 3 which is hinged with a main connecting plate 4 on the right side; the upper end of the main frame body 1 is provided with a terminal step plate 2.
The left connecting plate 6 is uniformly provided with left grooves 6a along the vertical direction, the plate control assembly comprises rotating shafts 8 which are rotatably arranged in each left groove 6a, and each rotating shaft 8 is connected with a movable step plate 9 and a straight gear 15 through keys; the spur gear 15 is engaged with a rack 14 installed on the inner side wall of the left tank 6a in a vertically sliding manner, and the rack 14 is connected with a first cylinder 13 fixedly installed on the lower side wall of the left tank 6 a.
The right yoke plate 7 has the groove 7a of putting on the right side along vertical direction equipartition, and the locking subassembly is including equal fixed mounting guide rail 10 and No. two cylinders 17 on every groove 7a lateral wall of putting on the right side, and guide rail 10 has U-shaped clamp mouth 11 along horizontal direction slidable mounting, and 11 rear ends of U-shaped clamp mouth are opened has inclined groove 11a, and inclined groove 11a sliding fit has spliced pole 12, and spliced pole 12 welding has the main slider 16 that links to each other with No. two cylinders 17.
The side wall of the right groove 7a is provided with a vertical groove 7b for vertically and slidably mounting the main slider 16.
In the initial state, the lower ends of the right connecting plate 7 and the left connecting plate 6 are abutted to the bottom of the main frame body 1. The right yoke plate 7, the left yoke plate 6 and the two main connecting plates 4 are all in a vertical state.
Before the main frame body is used, the main frame body 1 is only required to be arranged beside a boiler or directly connected with the boiler.
During the use, when the zero device of people top needs inspection boiler, only need according to artifical needs, promote main connecting plate 4 on right side through pneumatic cylinder 3, adjust the angle of inclination of two main connecting plates 4 and horizontal plane for all fixed step ladder 5 are the equal high slope line arrangement of adaptation manual work.
When the two main connecting plates 4 are inclined, the fixed stepped plate 5 at the lowest side inevitably rises in height and is inconvenient to ascend, the right connecting plate 7 and the left connecting plate 6 at the moment inevitably slide downwards in an inclined mode under the action of gravity, so that the corresponding left groove 6a and the right groove 7a are completely exposed from the main connecting plates 4, and the rack 14 can be pulled downwards through the first cylinder 13 in the exposed left groove 6a, so that the straight gear 15 and the movable stepped plate 9 are enabled to rotate 90 degrees anticlockwise to be in a horizontal state. Then, a second cylinder 17 in the exposed right groove 7a pulls the main slider 16 and the connecting column 12 downward to urge the U-shaped clamping opening 11 to slide leftward, and the bayonet of the U-shaped clamping opening 11 can be clamped with the right end of the movable stepped plate 9 to lock the movable stepped plate 9. At the moment, the height of the whole boiler is equal to the height of the whole boiler by firstly treading the movable stepped plate 9, then treading the fixed stepped plate 5 and finally climbing the terminal stepped plate 2, so that parts on the upper part of the large boiler can be conveniently overhauled.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a dedicated extension formula ladder frame of large-scale boiler, includes the body frame body (1), and body frame body (1) upper portion is articulated to be installed main connecting plate (4) of two parallels, its characterized in that: fixed step plates (5) are uniformly distributed between the two main connecting plates (4) along the vertical direction, and the left end and the right end of each fixed step plate (5) are correspondingly hinged and connected with the two main connecting plates (4);
the lower part of each main connecting plate (4) is provided with a slot, a left yoke plate (6) is slidably mounted in the slot on the left side, and a right yoke plate (7) is slidably mounted in the slot on the right side; the left yoke plate (6) is provided with a plate control assembly; the right yoke plate (7) is provided with a locking component.
2. The extended ladder rack special for the large-scale boiler according to claim 1, wherein: the right end of the main frame body (1) is hinged with a hydraulic cylinder (3) which is hinged with a main connecting plate (4) on the right side; the upper end of the main frame body (1) is provided with a terminal step plate (2).
3. The extended ladder rack special for the large-scale boiler according to claim 1, wherein: the left connecting plate (6) is uniformly provided with left grooves (6a) along the vertical direction, the plate control assembly comprises rotating shafts (8) which are rotatably arranged in each left groove (6a), and each rotating shaft (8) is connected with a movable step plate (9) and a straight gear (15) through keys; the straight gear (15) is meshed with a rack (14) which is arranged on the inner side wall of the left groove (6a) in a vertical sliding mode, and the rack (14) is connected with a first cylinder (13) which is fixedly arranged on the lower side wall of the left groove (6 a).
4. The extended ladder rack special for the large-scale boiler according to claim 1, wherein: groove (7a) are put on the right side to right yoke plate (7) along vertical direction equipartition, the locking subassembly is including equal fixed mounting guide rail (10) and No. two cylinders (17) on groove (7a) lateral wall are put on every right side, horizontal direction slidable mounting is followed in guide rail (10) U-shaped clamp mouth (11), U-shaped clamp mouth (11) rear end is opened has inclined groove (11a), inclined groove (11a) sliding fit has spliced pole (12), spliced pole (12) welding has main slider (16) that link to each other with No. two cylinders (17).
5. The extended ladder rack special for the large boiler according to claim 4, wherein: the side wall of the right groove (7a) is provided with a vertical groove (7b) for vertically and slidably mounting the main sliding block (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110444830.3A CN113250602B (en) | 2021-04-24 | 2021-04-24 | Special extension type ladder rack for large boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110444830.3A CN113250602B (en) | 2021-04-24 | 2021-04-24 | Special extension type ladder rack for large boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113250602A true CN113250602A (en) | 2021-08-13 |
| CN113250602B CN113250602B (en) | 2022-09-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110444830.3A Active CN113250602B (en) | 2021-04-24 | 2021-04-24 | Special extension type ladder rack for large boiler |
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| Country | Link |
|---|---|
| CN (1) | CN113250602B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040178018A1 (en) * | 2003-03-14 | 2004-09-16 | Mcneilus Truck And Manufacturing, Inc. | Folding ladder for concrete mixer trucks |
| CN101382037A (en) * | 2008-08-01 | 2009-03-11 | 朱祚睿 | Folding chair type two-joint auto expanding open-air evacuation ladder auto-unfolding when earthshock |
| CN206600143U (en) * | 2017-01-11 | 2017-10-31 | 深圳市鸿力健混凝土有限公司 | A kind of large-scale water tower cat ladder |
| US10184293B1 (en) * | 2015-03-23 | 2019-01-22 | Amazon Technologies, Inc. | Sliding ladder units |
| CN110331930A (en) * | 2019-07-15 | 2019-10-15 | 淄博一凡针织有限公司 | A kind of ladder for indoor interlayer with storage function |
-
2021
- 2021-04-24 CN CN202110444830.3A patent/CN113250602B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040178018A1 (en) * | 2003-03-14 | 2004-09-16 | Mcneilus Truck And Manufacturing, Inc. | Folding ladder for concrete mixer trucks |
| CN101382037A (en) * | 2008-08-01 | 2009-03-11 | 朱祚睿 | Folding chair type two-joint auto expanding open-air evacuation ladder auto-unfolding when earthshock |
| US10184293B1 (en) * | 2015-03-23 | 2019-01-22 | Amazon Technologies, Inc. | Sliding ladder units |
| CN206600143U (en) * | 2017-01-11 | 2017-10-31 | 深圳市鸿力健混凝土有限公司 | A kind of large-scale water tower cat ladder |
| CN110331930A (en) * | 2019-07-15 | 2019-10-15 | 淄博一凡针织有限公司 | A kind of ladder for indoor interlayer with storage function |
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| Publication number | Publication date |
|---|---|
| CN113250602B (en) | 2022-09-30 |
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