CN103896142B - A kind of Rotatable lift car toe guard - Google Patents
A kind of Rotatable lift car toe guard Download PDFInfo
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- CN103896142B CN103896142B CN201410135698.8A CN201410135698A CN103896142B CN 103896142 B CN103896142 B CN 103896142B CN 201410135698 A CN201410135698 A CN 201410135698A CN 103896142 B CN103896142 B CN 103896142B
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- toeguard
- rolling member
- bottom sheet
- lift car
- toe guard
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Abstract
The invention provides a kind of Rotatable lift car toe guard, comprise the toeguard upper slice (1) and toeguard bottom sheet (2) that are hinged, the bottom of toeguard bottom sheet (2) has the bending part (21) turned down inside car, is also connected with torsion spring (5) between toeguard upper slice (1) and toeguard bottom sheet (2); The upper end of bending part (21) and the junction of toeguard bottom sheet (2) have bending edges (211), and bending edges (211) is installed with can along the upper rolling member (42) of self axial-rotation; The lower end of bending part (21) has lower edge (212), and lower edge (212) is installed with can along the lower rolling member (41) of self axial-rotation.The present invention enables to have toeguard bottom sheet by upper rolling member and the rolling action of lower rolling member and rotates relative to toeguard upper slice, and provide rotation restoring force to make toeguard bottom sheet and toeguard upper slice return back to deployed condition by slew mode by torsion spring, not only structure is simple, cost is lower, and manufacture and install also simpler and easy, work more reliable and more stable.
Description
Technical field
The present invention relates to the toe guard of elevator car of elevator, especially relate to a kind of structure simple, shallow pit hoistway can be applicable to the Rotatable lift car toe guard preventing toeguard from extruding pit bottom surface.
Background technology
Along with the development of elevator technology, increasing elevator hoistways is designed to shallow pit hoistway, especially particularly outstanding in villa elevator.When pit is less than certain depth, common toeguard can extrude ground along with cage operation to during pit, causes toeguard to damage, and even may cause the injury to related personnel.If adapt to pit blindly, and toe guard of elevator car is shortened, then the structure of toeguard does not just meet relevant standard-required, and when lift car be in higher level station and not at level position time, just have passenger to fall risk into elevator hoistways.
For addressing this is that; there is the design of Rotatable lift car toe guard at present; this toeguard can be inconsistent and rotate with pit bottom surface when lift car moves to pit downwards; thus avoid toeguard to damage; after lift car upwards runs, toeguard returns to again after leaving pit bottom surface and launches shape and play a protective role.Such as a publication No. is CN102701057A, the applying date is the Chinese invention patent application on October 13rd, 2012, disclose a kind of Rotatable lift car toe guard, this kind of toeguard just not only can adapt to shallow pit hoistway but also can prevent toeguard from clashing into pit bottom surface and damaging, and efficiently solves the problems referred to above.But, due to this kind of Rotatable lift car toe guard adopt be very complicated cam link mechanism to realize the rotation of toeguard, not only manufacture and installation process complexity, cost of manufacture is higher, and the reliability of mechanism is also lower, easily damages, maintenance and replacing all quite bother.
Summary of the invention
In order to overcome the defect of prior art, the object of this invention is to provide that a kind of structure is simple, cost is lower, manufacture and install simpler and easy, that work is more reliable and more stable Rotatable lift car toe guard.
For achieving the above object, the invention provides a kind of Rotatable lift car toe guard, comprise the toeguard upper slice and toeguard bottom sheet that are hinged, the bottom of described toeguard bottom sheet has the bending part turned down inside car, it is characterized in that: be also connected with for providing the torsion spring rotating restoring force between described toeguard upper slice and described toeguard bottom sheet; The upper end of described bending part and the junction of described toeguard bottom sheet have bending edges, and described bending edges is installed with can along the upper rolling member of self axial-rotation; The lower end of described bending part has lower edge, and described lower edge is installed with can along the lower rolling member of self axial-rotation.
Preferably, described toeguard upper slice is installed with upper fixed seat, described toeguard bottom sheet is installed with lower fixed seat, one end of described torsion spring is fixed on fixed seat, and its other end is fixed on described lower fixed seat.
More preferably, described toeguard upper slice and described toeguard bottom sheet are hinged by hinge, and the rotary centerline of described hinge is arranged in the horizontal direction, and the rotary centerline of described torsion spring parallels with the rotary centerline of described hinge.
Further, the rotating shaft of described upper rolling member parallels with the rotary centerline of described hinge, and the rotating shaft of described lower rolling member parallels with the rotary centerline of described hinge.
Further, described bending edges and described lower edge are arranged and the two is parallel to each other all in the horizontal direction.
In one embodiment, the quantity of described upper rolling member is multiple, and multiple described upper rolling member is spaced apart along same rotary centerline on described bending edges; The quantity of described lower rolling member is multiple, and multiple described lower rolling member is spaced apart along same rotary centerline on described lower edge.
Wherein, the quantity of described upper rolling member is identical with the quantity of described lower rolling member, and multiple described upper rolling member and described multiple lower rolling member in the height direction one_to_one corresponding arrange.
Owing to adopting technique scheme, Rotatable lift car toe guard of the present invention has the following advantages: by arranging torsion spring between the toeguard upper slice be hinged and toeguard bottom sheet, guarantee that toeguard upper slice keeps the state of vertical expansion with toeguard bottom sheet when elevator cage operation by the torsion of torsion spring, and in elevator cab movement to pit, after toeguard bottom sheet rotates relatively, provide return action power to make toeguard bottom sheet return back to plumbness by torsion spring; At the lower edge of the bending part of toeguard bottom sheet, lower rolling member is set, when elevator cage operation is to pit, lower rolling member conflict pit ground and along pit bottom surface roll, rotate so toeguard bottom sheet carries out certain angle relative to toeguard upper slice, reduce toeguard to pit depth requirement; The upper rolling member that bending edges in the upper end of the bending part of toeguard bottom sheet is arranged; can guarantee when toeguard bottom sheet rotates to more than 90 ° relative to toeguard upper slice; avoid the side of toeguard bottom sheet and pit bottom surface to collide or rub, play the effect of protection toeguard bottom sheet.
Accompanying drawing explanation
Fig. 1 is the front view of the present invention in deployed condition.
Fig. 2 is the lateral plan of the present invention in deployed condition.
Fig. 3 is the view of lower rolling member of the present invention when just having contacted pit ground.
Fig. 4 is the lateral plan of the present invention at slew mode first stage.
Fig. 5 is the lateral plan of the present invention in slew mode subordinate phase.
Fig. 6 is the lateral plan of the present invention in the slew mode phase III.
In accompanying drawing: 1, toeguard upper slice; 2, toeguard bottom sheet; 21, bending part; 211, bending edges; 212, lower edge; 3, hinge; 41, lower rolling member; 410, lower rotary shaft; 42, upper rolling member; 420, upper rotating shaft; 5, torsion spring; 51, upper fixed seat; 52, lower fixed seat; 6, at the bottom of sedan-chair; 7, pit ground.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
Refer to Fig. 1 to Fig. 6, a kind of Rotatable lift car toe guard of the present invention, comprise toeguard upper slice 1 and toeguard bottom sheet 2, it is hinged that toeguard upper slice 1 and toeguard bottom sheet 2 pass through two, left and right hinge 3.The rotary centerline of two hinges 3 is positioned on same level line.The upper end of toeguard upper slice 1 to be fixed at the bottom of the sedan-chair of car on 6.The bottom of toeguard bottom sheet 2 has the bending part 21 turned down inside car.
Also be connected with between toeguard upper slice 1 and toeguard bottom sheet 2 for providing the torsion spring 5 rotating restoring force.Wherein, toeguard upper slice 1 is installed with upper fixed seat 51, described toeguard bottom sheet 2 is installed with lower fixed seat 52, one end of torsion spring 5 is fixed on upper fixed seat 51, and its other end is fixed on lower fixed seat 52.The rotary centerline of torsion spring 5 when rotating arranges in horizontal direction and parallels with the rotary centerline of hinge 3.
The upper end of bending part 21 and the junction of toeguard bottom sheet 2 have bending edges 211, and the lower end of bending part 21 has lower edge 212.Bending edges 211 is arranged in the horizontal direction, and lower edge 212 is also arranged in the horizontal direction, and bending edges 211 and lower edge 212 parallel.
Bending edges 211 is fixed with rotating shaft 420 in the horizontal direction, and the axial line of upper rotating shaft 420 parallels with the rotary centerline of hinge 3.In upper rotating shaft 420, uniform intervals is provided with 3 upper rolling members 42.Each upper rolling member 42 is coaxially arranged in rotating shaft 420, and therefore, each upper rolling member 42 can go up rotating shaft 420 for center of turn rotation.
Lower edge 212 is installed with lower rotary shaft 410, the axial line of lower rotary shaft 410 parallels with the rotary centerline of hinge 3, and therefore lower rotary shaft 410 also parallels with upper rotating shaft 420.On lower rotary shaft 410, uniform intervals is provided with 3 lower rolling members 41.Each lower rolling member 41 is coaxially arranged on lower rotary shaft 410, and therefore, each lower rolling member 41 can lower rotary shaft 410 be center of turn rotation.
In the present embodiment, 3 lower rolling members 41 and 3 upper rolling members 42 are all rollers, and they are arranged in the height direction correspondingly in pairs.And, during in order to ensure elevator cage operation to pit, the rolling effect of lower rolling member 41 and upper rolling member 42 after toeguard bottom sheet 21 and pit earth surface rotate, the radius of lower rolling member 41 is greater than the thickness of bending part 21 and exceeds the lower edge 212 of bending part 21, and the radius of upper rolling member 42 is greater than the thickness of toeguard bottom sheet 2 and the thickness of bending part 21.
In other embodiments, upper rolling member 42 can increase and decrease according to the width size of toeguard with the quantity of lower rolling member 41.When the width of toeguard is larger, the upper rolling member 42 right more than 3 and lower rolling member 41 can be set; When the width of toeguard is less, can arranges and be less than 3 right upper rolling members 42 and lower rolling member 41, or only have a pair.
When running above lift car is in bottom flat bed, toeguard upper slice 1 and the toeguard bottom sheet 2 of Rotatable lift car toe guard keep deployed condition under the application force of torsion spring 5, and namely toeguard upper slice 1 and toeguard bottom sheet 2 are all positioned at vertical plane.
When elevator cage operation arrives bottom flat bed, as shown in Figure 3, the lower rolling member 41 of Rotatable lift car toe guard lower end touches pit ground 7, and now Rotatable lift car toe guard is about to enter slew mode by deployed condition.
As shown in Figure 4, it shows the lateral plan of Rotatable lift car toe guard of the present invention at slew mode first stage.Along with lift car continues to run downwards, because bending part 21 turns down inside car, therefore descend rolling member 41 toeguard bottom sheet 2 can be made towards sideway swivel in car along ground surface.
Lift car continues when running downwards, and lower rolling member 41 will contact pit bottom surface 7 with upper rolling member 42 simultaneously, and the torsion that now toeguard bottom sheet 2 has overcome torsion spring rotates through certain angle.
As shown in Figure 5, it shows the lateral plan of Rotatable lift car toe guard of the present invention in slew mode subordinate phase.When lift car continues to run downwards, now toeguard bottom sheet 2 will be rolled along pit ground 7 by upper rolling member 42, and toeguard bottom sheet 2 continues sideway swivel in car, and now, lower rolling member 41 leaves ground.
As shown in Figure 6, it shows the lateral plan of Rotatable lift car toe guard of the present invention in the slew mode phase III.When lift car continues to run downwards, now go up the relative pit ground 7 of rolling member 42 towards side roll in car, toeguard bottom sheet 2 relatively toeguard upper slice 1 rotate through 90 °.Radius due to upper rolling member 42 is greater than the radius of the rotating shaft of hinge 3, and therefore, the rotating shaft of hinge 3 does not touch pit ground.If the radius of upper rolling member 42 is enough large, then toeguard bottom sheet 2 anglec of rotation of toeguard upper slice 1 relatively can will be greater than 90 °.
When lift car upwards run leave pit time, toeguard bottom sheet 2 returns to vertical state by under the effect of torsion spring 5.
From above-described embodiment, Rotatable lift car toe guard of the present invention by connecting torsion spring 5 between the toeguard upper slice 1 be hinged and toeguard bottom sheet 2, by upper rolling member 42 and the rolling action of lower rolling member 41, the toeguard bottom sheet 2 with bending part can be rotated relative to toeguard upper slice 1, can be adapted in the elevator of shallow pit, and not only structure is simpler, cost is lower to adopt the structure of torsion spring and rolling member, and manufacture and install also simpler and easy, work more reliable and more stable.
Claims (5)
1. a Rotatable lift car toe guard, comprise the toeguard upper slice (1) and toeguard bottom sheet (2) that are hinged, the bottom of described toeguard bottom sheet (2) has the bending part (21) turned down inside car, it is characterized in that: be also connected with for providing the torsion spring (5) rotating restoring force between described toeguard upper slice (1) and described toeguard bottom sheet (2); The upper end of described bending part (21) and the junction of described toeguard bottom sheet (2) have bending edges (211), and described bending edges (211) is installed with can along the upper rolling member (42) of self axial-rotation; The lower end of described bending part (21) has lower edge (212), and described lower edge (212) is installed with can along the lower rolling member (41) of self axial-rotation; The quantity of described upper rolling member (42) is multiple, and multiple described upper rolling member (42) is spaced apart along same rotary centerline on described bending edges (211); The quantity of described lower rolling member (41) is multiple, and multiple described lower rolling member (41) is spaced apart along same rotary centerline on described lower edge (212); The quantity of described upper rolling member (42) is identical with the quantity of described lower rolling member (41), and multiple described upper rolling member (42) and described multiple lower rolling member (41) in the height direction one_to_one corresponding arrange.
2. a kind of Rotatable lift car toe guard according to claim 1, it is characterized in that: described toeguard upper slice (1) is installed with upper fixed seat (51), described toeguard bottom sheet (2) is installed with lower fixed seat (52), one end of described torsion spring (5) is fixed on fixed seat (51), and its other end is fixed on described lower fixed seat (52).
3. a kind of Rotatable lift car toe guard according to claim 1, it is characterized in that: described toeguard upper slice (1) and described toeguard bottom sheet (2) are hinged by hinge (3), the rotary centerline of described hinge (3) is arranged in the horizontal direction, and the rotary centerline of described torsion spring (5) parallels with the rotary centerline of described hinge (3).
4. a kind of Rotatable lift car toe guard according to claim 3, it is characterized in that: the rotating shaft of described upper rolling member (42) parallels with the rotary centerline of described hinge (3), the rotating shaft of described lower rolling member (41) parallels with the rotary centerline of described hinge (3).
5. a kind of Rotatable lift car toe guard according to claim 4, is characterized in that: described bending edges (211) and described lower edge (212) arrange all in the horizontal direction and the two is parallel to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410135698.8A CN103896142B (en) | 2014-04-04 | 2014-04-04 | A kind of Rotatable lift car toe guard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410135698.8A CN103896142B (en) | 2014-04-04 | 2014-04-04 | A kind of Rotatable lift car toe guard |
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| Publication Number | Publication Date |
|---|---|
| CN103896142A CN103896142A (en) | 2014-07-02 |
| CN103896142B true CN103896142B (en) | 2016-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410135698.8A Active CN103896142B (en) | 2014-04-04 | 2014-04-04 | A kind of Rotatable lift car toe guard |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106744185B (en) * | 2017-01-16 | 2019-01-25 | 朱辰晧 | A kind of folding utility toe guard of elevator car |
| CN108275552B (en) * | 2018-03-28 | 2023-05-12 | 怡达快速电梯有限公司 | Foldable elevator toe guard suitable for shallow pit |
| CN110407065B (en) * | 2018-04-28 | 2022-04-29 | 中国建筑科学研究院有限公司建筑机械化研究分院 | Toe guard height adjustment device and elevator device system |
| CN108529407A (en) * | 2018-05-24 | 2018-09-14 | 天奥电梯（中国）有限公司 | A kind of rotary folding type toeguard |
| CN109019266A (en) * | 2018-10-11 | 2018-12-18 | 苏州台菱电梯有限公司 | A kind of Manual turning plate type toeguard |
| EP4038006A1 (en) * | 2019-09-30 | 2022-08-10 | Inventio AG | Elevator system |
Citations (7)
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|---|---|---|---|---|
| CN1356958A (en) * | 1999-04-22 | 2002-07-03 | 奥蒂斯电梯公司 | Pit-less elevator |
| DE10065101A1 (en) * | 2000-12-28 | 2002-07-18 | Logos Innovationen Gmbh | Elevator has movable protective device beneath elevator cabin with at least one rotation axis or shaft for pivoting the device and locking arrangement for fixing deployed protective device |
| JP2005104649A (en) * | 2003-09-30 | 2005-04-21 | Otis Elevator Co | Elevator guard device |
| CN102701057A (en) * | 2012-03-13 | 2012-10-03 | 西子奥的斯电梯有限公司 | Rotatable lift car toe guard |
| WO2013054321A1 (en) * | 2011-10-10 | 2013-04-18 | Yoram Madar | Fold able apron in elevator with movable floor in reduced pit |
| CN103562110A (en) * | 2011-03-22 | 2014-02-05 | 奥的斯电梯公司 | Toe guard assembly for an elevator system |
| CN203781598U (en) * | 2014-04-04 | 2014-08-20 | 江南嘉捷电梯股份有限公司 | Rotatable car toe guard |
-
2014
- 2014-04-04 CN CN201410135698.8A patent/CN103896142B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1356958A (en) * | 1999-04-22 | 2002-07-03 | 奥蒂斯电梯公司 | Pit-less elevator |
| DE10065101A1 (en) * | 2000-12-28 | 2002-07-18 | Logos Innovationen Gmbh | Elevator has movable protective device beneath elevator cabin with at least one rotation axis or shaft for pivoting the device and locking arrangement for fixing deployed protective device |
| JP2005104649A (en) * | 2003-09-30 | 2005-04-21 | Otis Elevator Co | Elevator guard device |
| CN103562110A (en) * | 2011-03-22 | 2014-02-05 | 奥的斯电梯公司 | Toe guard assembly for an elevator system |
| WO2013054321A1 (en) * | 2011-10-10 | 2013-04-18 | Yoram Madar | Fold able apron in elevator with movable floor in reduced pit |
| CN102701057A (en) * | 2012-03-13 | 2012-10-03 | 西子奥的斯电梯有限公司 | Rotatable lift car toe guard |
| CN203781598U (en) * | 2014-04-04 | 2014-08-20 | 江南嘉捷电梯股份有限公司 | Rotatable car toe guard |
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| CN103896142A (en) | 2014-07-02 |
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Effective date of registration: 20180426 Address after: 215122 28 Weixin Road, Suzhou Industrial Park, Suzhou, Jiangsu Patentee after: Jiangnan Jiajie Lift Co., Ltd., Jiangsu Address before: 215122 No. 718 Ting Ting Road, Suzhou Industrial Park, Jiangsu Patentee before: SJEC Corporation |