CN102963305B - Fixing device for foldable hanging ladder and engineering machine comprising same - Google Patents
Fixing device for foldable hanging ladder and engineering machine comprising same Download PDFInfo
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- CN102963305B CN102963305B CN201210499286.3A CN201210499286A CN102963305B CN 102963305 B CN102963305 B CN 102963305B CN 201210499286 A CN201210499286 A CN 201210499286A CN 102963305 B CN102963305 B CN 102963305B
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- hanging ladder
- folding hanging
- connecting element
- folding
- anchor fitting
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Abstract
The invention provides a fixing device for a foldable hanging ladder and an engineering machine comprising the same. The fixing device for the foldable hanging ladder comprises a foldable hanging ladder and a foldable hanging ladder mounting surface, wherein one end of the foldable hanging ladder is hinged on the foldable hanging ladder mounting surface through a hinging part; the foldable hanging ladder has a folding position and a work position; a fixing part is arranged on the foldable hanging ladder; and a fixing part mounting part worked with the fixing part when the foldable hanging ladder is rotated to the work position is arranged on the foldable hanging ladder mounting surface. According to the fixing device disclosed by the invention, the fixing part is additionally arranged on the foldable hanging ladder and the fixing part mounting part worked with the fixing part when the foldable hanging ladder is rotated to the work position is arranged on the foldable hanging ladder mounting surface, so that when a worker wants to use the foldable hanging ladder, the foldable hanging ladder is rotated to the work position and the fixing part is fixed on the foldable hanging ladder mounting surface. Due to the adoption of the structure, the foldable hanging ladder is commonly fixed by the hinging part and the fixing part at the work position; and the foldable hanging ladder is prevented from being rotated, so that the stability of the foldable hanging ladder is ensured.
Description
Technical field
The present invention relates to technical field of engineering machinery, in particular to a kind of construction machinery and equipment rolled over hanging ladder anchor fitting and comprise this device.
Background technology
The vehicle chassis of existing large-scale engineering machinery is all higher, and personnel need when upper and lower vehicle to use stair, travels with vehicle for the ease of carrying, and general installation folding of selecting hangs stair.
As shown in Figure 1, under motoring condition, folding hanging ladder 2 lies in a horizontal plane in vehicle and walks on platen.Roll over hanging ladder 2 and walk platen and be connected by bolt 1, packing ring, bearing pin etc., can horizontally rotate between folding hanging ladder 2 and bolt 1, folding hanging ladder 2 itself can fold.When needs use folding folding hanging ladder 2, as shown in Figure 2, hanging ladder 2 will be rolled over towards vehicle outside half-twist, and make folding hanging ladder 2 self be downward bending state, can use.
Adopt this structure, owing to rolling over hanging ladder 2 and walking between platen to only have a bolt 1 to be connected, in use, folding hanging ladder 2 easily rotates, and therefore easily causes staff to fall.In addition, because whole external force is born in this bolt 1 junction, and roll over hanging ladder 2 and walk platen and be generally made up of aluminum alloy, Long-Time Service can cause on folding hanging ladder 2 and ftracture with the junction of bolt 1, damage.Also platen can be caused away in the distortion of bolt 1 junction, damage.
Summary of the invention
The present invention aims to provide a kind of folding hanging ladder anchor fitting not easily rocked in the use procedure of folding hanging ladder and the construction machinery and equipment comprising this device.
To achieve these goals, according to an aspect of the present invention, provide a kind of folding hanging ladder anchor fitting, comprise folding hanging ladder and folding hanging ladder mounting surface, one end of folding hanging ladder is hinged in folding hanging ladder mounting surface by articulation piece, folding hanging ladder has stowed position and control position, and folding hanging ladder is also provided with connecting element, folding hanging ladder mounting surface is provided with and rotates to the connecting element installation portion matched with connecting element during control position at folding hanging ladder.
Further, connecting element and articulation piece are arranged on the one end of rolling over hanging ladder at intervals.
Further, the slide rail matched with the path of motion of connecting element in process hanging ladder mounting surface being provided with and rotating around articulation piece at folding hanging ladder is rolled over.
Further, connecting element is embedded in slide rail slidably.
Further, the two ends of slide rail are provided with the limiting section that restriction connecting element departs from along slide rail.
Further, slide rail is in the quadrntnt arc being the center of circle with articulation piece, being radius with the distance between articulation piece and connecting element.
Further, articulation piece and connecting element are arranged symmetrically relative to the longitudinal midline rolling over hanging ladder.
According to a further aspect in the invention, provide a kind of construction machinery and equipment, have folding hanging ladder anchor fitting, folding hanging ladder anchor fitting is above-mentioned folding hanging ladder anchor fitting.
Folding hanging ladder anchor fitting of the present invention and comprise the construction machinery and equipment of this device, by setting up connecting element on folding hanging ladder, and in folding hanging ladder mounting surface, be arranged on the rotation of folding hanging ladder to the connecting element installation portion matched with connecting element during control position, when staff rolls over hanging ladder for using, rotary folding hanging ladder is to control position, and connecting element is fixed in folding hanging ladder mounting surface, adopt this structure, folding hanging ladder is fixed by articulation piece and connecting element jointly when control position, folding hanging ladder can not rotate, and ensure that the stationarity of folding hanging ladder.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the plan structure schematic diagram of folding hanging ladder of the prior art under unused state wherein, and arrow A is depicted as vehicle heading, and arrow B is folding hanging ladder hand of rotation;
Fig. 2 shows according to the side-looking structural representation in a state of use of the folding hanging ladder shown in Fig. 1;
Fig. 3 shows and rolls over the plan structure schematic diagram of hanging ladder anchor fitting in stowed position according to an embodiment of the invention, and wherein, arrow C is depicted as vehicle heading, and arrow E is folding hanging ladder hand of rotation;
Fig. 4 shows the side-looking structural representation of the folding hanging ladder anchor fitting according to Fig. 3 at control position; And
Fig. 5 shows the partial enlarged drawing in scope according to N in Fig. 4.
Detailed description of the invention
Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
As shown in Figures 3 to 5, roll over hanging ladder anchor fitting according to an embodiment of the invention, comprise folding hanging ladder 20 and folding hanging ladder mounting surface (as walking the surface of platen), one end of folding hanging ladder 20 is provided with and the connecting portion rolled over hanging ladder mounting surface and be connected, folding hanging ladder 20 is hinged in folding hanging ladder mounting surface by articulation piece 10, folding hanging ladder 20 rotates around articulation piece 10, folding hanging ladder 20 has stowed position and control position, folding hanging ladder 20 is also provided with connecting element 40, folding hanging ladder mounting surface is provided with and rotates connecting element installation portion to during control position with connecting element 40 match by stowed position around articulation piece 10 at folding hanging ladder 20.Preferably, connecting element 40 and articulation piece 10 are arranged on the one end of rolling over hanging ladder 20 at intervals.More preferably, articulation piece 10 and connecting element 40 are arranged symmetrically relative to the longitudinal midline rolling over hanging ladder 20.
The folding hanging ladder anchor fitting of the present embodiment, by setting up connecting element 40 on folding hanging ladder 20, and in folding hanging ladder mounting surface, being arranged on folding hanging ladder 20 rotating connecting element installation portion to matching with connecting element 40 during control position, when staff rolls over hanging ladder 20 for using, rotary folding hanging ladder 20 to control position, and connecting element 40 is fixed in folding hanging ladder mounting surface, adopt this structure, folding hanging ladder 20 is fixed by articulation piece 10 and connecting element 40 jointly when control position, folding hanging ladder 20 can not rotate, ensure that the stationarity of folding hanging ladder 20, prevent the injury accident causing the rotation in the use procedure of folding hanging ladder 20 to cause personnel to fall because single-point connects.And, because the stressing conditions rolling over hanging ladder 20 improves greatly, folding hanging ladder 20 can not be caused at articulation piece 10 junction cracking, damage, it also avoid folding hanging ladder mounting surface (as walking the surface of platen) distortion in the junction with articulation piece 10 and damage, extend folding hanging ladder 20 and walk service life of platen.
In order to make the movement of connecting element 40 in the process rotated with folding hanging ladder 20 convenient, reduce the cliding friction of connecting element 40 doubling hanging ladder mounting surface, as shown in Figure 3, in the folding hanging ladder anchor fitting of the present embodiment, folding hanging ladder mounting surface is provided with the slide rail 30 matched with the path of motion of connecting element 40 in the process rotated around articulation piece 10 at folding hanging ladder 20.Preferably, connecting element 40 is slidably disposed on slide rail 30, as being embedded in slide rail 30.More preferably, the upper end of slide rail 30 is provided with the limiting section that restriction connecting element 40 departs from along slide rail 30.As shown in Figure 3, slide rail 30 is with articulation piece 10 for the center of circle, the circular arc being radius R with the distance D between articulation piece 10 and connecting element 40, and preferably, slide rail 30 is in quadrntnt arc.Preferably, articulation piece 10 and connecting element 40 are bolt, and connecting element 40 is embedded in slide rail 30.
Adopt in the preferred embodiment of slide rail, when staff uses folding hanging ladder 20, folding hanging ladder 20 rotates to control position around articulation piece 10 along slide rail 30 by stowed position, the pedal force putting on folding hanging ladder 20 due to staff makes connecting element 40 be resisted against an end face of slide rail 30 firmly, thus prevent the rotation of folding hanging ladder, ensure that the safety of staff.In addition, because connecting element 40 is embedded in slide rail 30, therefore simplify use operation, after namely installing folding hanging ladder 20, due to the existence of slide rail 30, when using folding hanging ladder 20, do not need from stowed position dismounting connecting element 40 to control position.
Present invention also offers a kind of construction machinery and equipment, have folding hanging ladder anchor fitting, wherein, folding hanging ladder anchor fitting is above-mentioned folding hanging ladder anchor fitting.
From above description, can find out, folding hanging ladder anchor fitting of the present invention and comprise the construction machinery and equipment of this device, by setting up connecting element 40 on folding hanging ladder 20, and in folding hanging ladder mounting surface, being arranged on folding hanging ladder 20 rotating connecting element installation portion to matching with connecting element 40 during control position, when staff rolls over hanging ladder 20 for using, rotary folding hanging ladder 20 to control position, and connecting element 40 is fixed in folding hanging ladder mounting surface, adopt this structure, folding hanging ladder 20 is fixed by articulation piece 10 and connecting element 40 jointly when control position, folding hanging ladder 20 can not rotate, ensure that the stationarity of folding hanging ladder 20.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a folding hanging ladder anchor fitting, comprise folding hanging ladder (20) and folding hanging ladder mounting surface, one end of described folding hanging ladder (20) is hinged in described folding hanging ladder mounting surface by articulation piece (10), described folding hanging ladder (20) has stowed position and control position, it is characterized in that, described folding hanging ladder (20) is also provided with connecting element (40), described folding hanging ladder mounting surface is provided with in described folding hanging ladder (20) rotation to the connecting element installation portion matched with described connecting element (40) during described control position, described folding hanging ladder mounting surface is provided with the slide rail (30) matched with the path of motion of described connecting element (40) in the process rotated around described articulation piece (10) described folding hanging ladder (20).
2. folding hanging ladder anchor fitting according to claim 1, is characterized in that, described connecting element (40) and described articulation piece (10) are arranged on one end of described folding hanging ladder (20) at intervals.
3. folding hanging ladder anchor fitting according to claim 1, is characterized in that, described connecting element (40) is embedded in described slide rail (30) slidably.
4. folding hanging ladder anchor fitting according to claim 3, is characterized in that, the two ends of described slide rail (30) are provided with the limiting section limiting described connecting element (40) and depart from along described slide rail (30).
5. folding hanging ladder anchor fitting according to claim 1, it is characterized in that, described slide rail (30) is in being the center of circle with described articulation piece (10), taking the distance between described articulation piece (10) and described connecting element (40) as the quadrntnt arc of radius.
6. folding hanging ladder anchor fitting according to any one of claim 1 to 5, is characterized in that, described articulation piece (10) and described connecting element (40) are arranged symmetrically relative to the longitudinal midline of described folding hanging ladder (20).
7. a construction machinery and equipment, have folding hanging ladder anchor fitting, it is characterized in that, described folding hanging ladder anchor fitting is folding hanging ladder anchor fitting according to any one of claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210499286.3A CN102963305B (en) | 2012-11-29 | 2012-11-29 | Fixing device for foldable hanging ladder and engineering machine comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210499286.3A CN102963305B (en) | 2012-11-29 | 2012-11-29 | Fixing device for foldable hanging ladder and engineering machine comprising same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102963305A CN102963305A (en) | 2013-03-13 |
| CN102963305B true CN102963305B (en) | 2015-03-11 |
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ID=47793833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210499286.3A Active CN102963305B (en) | 2012-11-29 | 2012-11-29 | Fixing device for foldable hanging ladder and engineering machine comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102963305B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5366052A (en) * | 1993-07-20 | 1994-11-22 | Keh Lin Jeng | Reversible folding ladder |
| CN201045779Y (en) * | 2007-05-15 | 2008-04-16 | 郑州三中收获实业有限公司 | Rotary climbing ladder for steering room of reaper |
| CN201049632Y (en) * | 2007-06-11 | 2008-04-23 | 中国北车集团大同电力机车有限责任公司 | Folding suspension type locomotive top climbing ladder |
| CN202429133U (en) * | 2011-12-30 | 2012-09-12 | 衡阳泰豪通信车辆有限公司 | Stainless steel folding boarding ladder stored at bottom of shelter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100122871A1 (en) * | 2008-11-18 | 2010-05-20 | Upshot Innovations Product Development, Llc | Tractor Tire-Mountable Folding Step Ladder |
-
2012
- 2012-11-29 CN CN201210499286.3A patent/CN102963305B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5366052A (en) * | 1993-07-20 | 1994-11-22 | Keh Lin Jeng | Reversible folding ladder |
| CN201045779Y (en) * | 2007-05-15 | 2008-04-16 | 郑州三中收获实业有限公司 | Rotary climbing ladder for steering room of reaper |
| CN201049632Y (en) * | 2007-06-11 | 2008-04-23 | 中国北车集团大同电力机车有限责任公司 | Folding suspension type locomotive top climbing ladder |
| CN202429133U (en) * | 2011-12-30 | 2012-09-12 | 衡阳泰豪通信车辆有限公司 | Stainless steel folding boarding ladder stored at bottom of shelter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102963305A (en) | 2013-03-13 |
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