CN102963305A - 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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- CN102963305A CN102963305A CN2012104992863A CN201210499286A CN102963305A CN 102963305 A CN102963305 A CN 102963305A CN 2012104992863 A CN2012104992863 A CN 2012104992863A CN 201210499286 A CN201210499286 A CN 201210499286A CN 102963305 A CN102963305 A CN 102963305A
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- hanging ladder
- folding hanging
- connecting element
- anchor fitting
- folding
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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 of rolling over the hanging ladder anchor fitting and comprising this device.
Background technology
The vehicle chassis of existing large-scale engineering machinery is all higher, and personnel need to use stair when vehicle up and down, for the ease of carrying and Vehicle Driving Cycle, generally selects to install folding and hangs stair.
As shown in Figure 1, under the motoring condition, folding hanging ladder 2 lies in a horizontal plane in vehicle and walks on the platen.Folding hanging ladder 2 with walk platen and be connected by bolt 1, packing ring, bearing pin etc., can horizontally rotate between folding hanging ladder 2 and the bolt 1, roll over hanging ladder 2 and itself can fold.When needs use folding folding hanging ladder 2, as shown in Figure 2, will roll over hanging ladder 2 towards the vehicle outside half-twist, and make folding hanging ladder 2 self be downward bending state, can use.
Adopt this structure, because folding hanging ladder 2 is connected with walking to only have between the platen bolt 1, in use, folding hanging ladder 2 rotates easily, therefore causes easily the staff to fall.In addition, owing to bearing whole external force in this bolt 1 junction, generally made by aluminum alloy and roll over hanging ladder 2 and walk platen, long-term use can cause on the folding hanging ladder 2 and ftracture with the junction of bolt 1, damage.Also can cause away platen 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 that rocks and construction machinery and equipment that comprises this device of being difficult in the use procedure of folding hanging ladder.
To achieve these goals, according to an aspect of the present invention, a kind of folding hanging ladder anchor fitting is provided, comprise folding hanging ladder and folding hanging ladder installation surface, one end of folding hanging ladder is hinged on the folding hanging ladder by articulation piece and installs on the surface, the folding hanging ladder has stowed position and control position, also is provided with connecting element on the folding hanging ladder, and the folding hanging ladder is installed and be provided with the connecting element installation portion that matches with connecting element on the surface when the folding hanging ladder is rotated to control position.
Further, connecting element and articulation piece are arranged on an end of folding hanging ladder at intervals.
Further, the folding hanging ladder is installed and be provided with the slide rail that matches with the path of motion of connecting element at the folding hanging ladder on the surface in the process that articulation piece rotates.
Further, connecting element is embedded in the slide rail slidably.
Further, the two ends of slide rail are provided with the limiting section that the restriction connecting element breaks away from along slide rail.
Further, slide rail be take articulation piece as the center of circle, the quadrntnt arc take the distance between articulation piece and the connecting element as radius.
Further, articulation piece and connecting element arrange symmetrically with respect to the longitudinal midline of folding hanging ladder.
According to a further aspect in the invention, provide a kind of construction machinery and equipment, had 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 at the folding hanging ladder, and at the folding hanging ladder surface is installed and is arranged on the connecting element installation portion that matches with connecting element when the folding hanging ladder rotates to control position, when staff's wish is used the folding hanging ladder, the rotary folding hanging ladder is to control position, and connecting element is fixed on the folding hanging ladder installs on the surface, adopt this structure, the folding hanging ladder is jointly fixing by articulation piece and connecting element when control position, the folding hanging ladder can not rotate, and has guaranteed the stationarity of folding hanging ladder.
Description of drawings
The Figure of description that consists of the application's a part is used to provide a further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 shows the plan structure scheme drawing 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 of the folding hanging ladder shown in Fig. 1 under the use state;
Fig. 3 shows and rolls over according to an embodiment of the invention the hanging ladder anchor fitting at the plan structure scheme drawing of stowed position, and wherein, arrow C is depicted as vehicle heading, and arrow E is folding hanging ladder hand of rotation;
Fig. 4 shows according to folding hanging ladder anchor fitting shown in Figure 3 side-looking structural representation at control position; And
Fig. 5 shows according to the partial enlarged drawing in the scope shown in the N among Fig. 4.
The specific embodiment
Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.Need to prove that in the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
Extremely shown in Figure 5 such as Fig. 3, roll over according to an embodiment of the invention the hanging ladder anchor fitting, comprise that folding hanging ladder 20 and folding hanging ladder install the surface surface of platen (as walk), one end of folding hanging ladder 20 is provided with and rolls over the surperficial connecting portion that is connected of hanging ladder installation, folding hanging ladder 20 is hinged on the folding hanging ladder by articulation piece 10 and installs on the surface, folding hanging ladder 20 is around articulation piece 10 rotations, folding hanging ladder 20 has stowed position and control position, also be provided with connecting element 40 on the folding hanging ladder 20, the folding hanging ladder is installed and is provided with the connecting element installation portion that is matched with connecting element 40 when articulation piece 10 rotates to control position by the stowed position at folding hanging ladder 20 on the surface.Preferably, connecting element 40 is arranged on an end of rolling over hanging ladder 20 at intervals with articulation piece 10.More preferably, articulation piece 10 arranges symmetrically with the longitudinal midline of connecting element 40 with respect to folding hanging ladder 20.
The folding hanging ladder anchor fitting of present embodiment, by setting up connecting element 40 at folding hanging ladder 20, and at the folding hanging ladder surface is installed and is arranged on the connecting element installation portion that matches with connecting element 40 when folding hanging ladder 20 rotates to control position, when staff's wish is used folding hanging ladder 20, rotary folding hanging ladder 20 is to control position, and connecting element 40 is fixed on the folding hanging ladder installs on the surface, adopt this structure, folding hanging ladder 20 is jointly fixing by articulation piece 10 and connecting element 40 when control position, folding hanging ladder 20 can not rotate, guaranteed the stationarity of folding hanging ladder 20, prevented owing to single-point connects the injury accident that causes the rotation in 20 use procedures of folding hanging ladder to cause personnel to fall.And, because the stressing conditions of folding hanging ladder 20 improves greatly, can not cause folding hanging ladder 20 in articulation piece 10 junctions cracking, damage, also avoided the folding hanging ladder install the surface surface of platen (as walk) with distortion and the damage of the junction of articulation piece 10, prolong folding hanging ladder 20 and walk service life of platen.
For so that connecting element 40 convenient with the movement in the process of folding hanging ladder 20 rotation, reduce connecting element 40 doubling hanging ladders the cliding friction on surface is installed, as shown in Figure 3, in the folding hanging ladder anchor fitting of present embodiment, the folding hanging ladder is installed and be provided with the slide rail 30 that matches with the path of motion of connecting element 40 at folding hanging ladder 20 on the surface in the process of articulation piece 10 rotations.Preferably, connecting element 40 is slidably disposed on the slide rail 30, as is embedded in the slide rail 30.More preferably, the upper end of slide rail 30 is provided with the limiting section that restriction connecting element 40 breaks away from along slide rail 30.As shown in Figure 3, slide rail 30 is take articulation piece 10 as the center of circle, the circular arc take the distance B between articulation piece 10 and the connecting element 40 as radius R, and preferably, slide rail 30 is the quadrntnt arc.Preferably, articulation piece 10 and connecting element 40 are bolt, and connecting element 40 is embedded in the slide rail 30.
Adopt in the preferred embodiment of slide rail, when the staff uses folding hanging ladder 20, folding hanging ladder 20 is rotated to control position along slide rail 30 around articulation piece 10 by the stowed position, because putting on the pedal force of folding hanging ladder 20, the staff make connecting element 40 be resisted against firmly an end face of slide rail 30, thereby prevented the rotation of folding hanging ladder, guaranteed staff's safety.In addition, because connecting element 40 is embedded in the slide rail 30, use operation so simplified, namely install folding hanging ladder 20 after because the existence of slide rail 30 when using folding hanging ladder 20, does not need from stowed position dismounting connecting element 40 to control position.
The present invention also provides a kind of construction machinery and equipment, has folding hanging ladder anchor fitting, and 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 at folding hanging ladder 20, and at the folding hanging ladder surface is installed and is arranged on the connecting element installation portion that matches with connecting element 40 when folding hanging ladder 20 rotates to control position, when staff's wish is used folding hanging ladder 20, rotary folding hanging ladder 20 is to control position, and connecting element 40 is fixed on the folding hanging ladder installs on the surface, adopt this structure, folding hanging ladder 20 is jointly fixing by articulation piece 10 and connecting element 40 when control position, and folding hanging ladder 20 can not rotate, and has guaranteed the stationarity of folding hanging ladder 20.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and 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 modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. roll over the hanging ladder anchor fitting for one kind, comprise folding hanging ladder (20) and folding hanging ladder installation surface, one end of described folding hanging ladder (20) is hinged on described folding hanging ladder by articulation piece (10) and installs on the surface, described folding hanging ladder (20) has stowed position and control position, it is characterized in that, also be provided with connecting element (40) on the described folding hanging ladder (20), described folding hanging ladder is installed and be provided with the connecting element installation portion that matches with described connecting element (40) on the surface when described folding hanging ladder (20) is rotated to described control position.
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 an end of described folding hanging ladder (20) at intervals.
3. folding hanging ladder anchor fitting according to claim 2, it is characterized in that described folding hanging ladder is installed and be provided with the slide rail (30) that matches with the path of motion of described connecting element (40) at described folding hanging ladder (20) on the surface in the process of described articulation piece (10) rotation.
4. folding hanging ladder anchor fitting according to claim 3 is characterized in that, described connecting element (40) is embedded in the described slide rail (30) slidably.
5. folding hanging ladder anchor fitting according to claim 4 is characterized in that, the two ends of described slide rail (30) are provided with the limiting section that the described connecting element of restriction (40) breaks away from along described slide rail (30).
6. folding hanging ladder anchor fitting according to claim 3 is characterized in that, described slide rail (30) is take described articulation piece (10) as the center of circle, the quadrntnt arc take the distance between described articulation piece (10) and the described connecting element (40) as radius.
7. each described folding hanging ladder anchor fitting in 6 according to claim 1 is characterized in that described articulation piece (10) arranges symmetrically with the longitudinal midline of described connecting element (40) with respect to described folding hanging ladder (20).
8. construction machinery and equipment has folding hanging ladder anchor fitting, it is characterized in that, described folding hanging ladder anchor fitting is each described folding hanging ladder anchor fitting in 7 according to claim 1.
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 true CN102963305A (en) | 2013-03-13 |
| CN102963305B CN102963305B (en) | 2015-03-11 |
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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 |
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| CN (1) | CN102963305B (en) |
Citations (5)
| 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 |
| US20100122871A1 (en) * | 2008-11-18 | 2010-05-20 | Upshot Innovations Product Development, Llc | Tractor Tire-Mountable Folding Step 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 |
-
2012
- 2012-11-29 CN CN201210499286.3A patent/CN102963305B/en active Active
Patent Citations (5)
| 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 |
| US20100122871A1 (en) * | 2008-11-18 | 2010-05-20 | Upshot Innovations Product Development, Llc | Tractor Tire-Mountable Folding Step 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 |
|---|---|
| CN102963305B (en) | 2015-03-11 |
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