CN103896142A - Rotatable lift car toe guard - Google Patents
Rotatable lift car toe guard Download PDFInfo
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- CN103896142A CN103896142A CN201410135698.8A CN201410135698A CN103896142A CN 103896142 A CN103896142 A CN 103896142A CN 201410135698 A CN201410135698 A CN 201410135698A CN 103896142 A CN103896142 A CN 103896142A
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- toeguard
- toe guard
- rolling member
- sheet
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Abstract
The invention provides a rotatable lift car toe guard. The rotatable lift car toe guard comprises an upper toe guard piece (1) and a lower toe guard piece (2) which are hinged to each other, the lower portion of the lower toe guard piece (2) is provided with a bent portion (21) which is bent towards the inner side of a lift car, a torsion spring (5) is further connected between the upper toe guard piece (1) and the lower toe guard piece (2), a bent edge (211) is arranged at the joint of the upper end of the bent portion (21) and the lower toe guard piece (2), an upper rolling part (42) capable of rotating along the axial direction thereof is fixedly mounted on the bent edge (211), the lower end of the bent portion (21) is provided with a lower edge (212), and a lower rolling part (41) capable of rotating along the axial direction thereof is fixedly mounted on the lower edge (212). The lower toe guard piece can rotate relatively to the upper toe guard piece under the rolling action of the upper rolling part and the lower rolling part, rotational restoring force is provided through the torsion spring to enable the lower toe guard piece and the upper toe guard piece to restore to an unfolded state from a rotational state, and the rotatable lift car toe guard is simple in structure, low in cost, easier to manufacture and mount and more stable and reliable in working.
Description
Technical field
The present invention relates to the toe guard of elevator car of elevator, especially relate to a kind of simple in structure, can be applicable to shallow pit hoistway to prevent the rotatable toe guard of elevator car of toeguard 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.In the time that pit is less than certain depth, common toeguard can push ground along with cage operation during to pit, causes toeguard to damage, and even may cause the injury to related personnel.If adapt to blindly pit, and toe guard of elevator car is shortened, the structure of toeguard does not just meet relevant standard-required, and when lift car is not during in higher level station and at level position, just has passenger to fall the risk into elevator hoistways.
For addressing this is that; there is at present the design of rotatable toe guard of elevator car; this toeguard can be inconsistent and rotate with pit bottom surface in the time that lift car moves to pit downwards; thereby avoid toeguard to damage; after lift car upwards moves, toeguard leaves to return to again behind pit bottom surface and launches shape and play a protective role.For example a publication No. is CN102701057A, the applying date is the Chinese invention patent application on October 13rd, 2012, disclose a kind of rotatable toe guard of elevator car, this kind of toeguard just can not only adapt to shallow pit hoistway but also can prevent toeguard from clashing into pit bottom surface and damage, and effectively solved the problems referred to above.But what adopt due to this kind of rotatable toe guard of elevator car is the rotation that very complicated cam link mechanism is realized toeguard, not only manufactures and installation process complexity, cost of manufacture is higher, and the reliability of mechanism is also lower, easily damage, 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 a kind of simple in structure, cost is lower, it is simpler and easy to manufacture and install, the more reliable and more stable rotatable toe guard of elevator car of work.
For achieving the above object, the invention provides a kind of rotatable toe guard of elevator car, comprise sheet under the toeguard upper slice that is hinged and toeguard, under described toeguard, the bottom of sheet has the bending part towards the turnover of car inner side, it is characterized in that: under described toeguard upper slice and described toeguard, between sheet, be also connected with the torsion spring for rotation restoring force is provided; Under the upper end of described bending part and described toeguard, the junction of sheet has bending edges, and on described bending edges, being installed with can be along the upper rolling member of self axial-rotation; The lower end of described bending part has lower edge, and on described lower edge, being installed with can be along the lower rolling member of self axial-rotation.
Preferably, on described toeguard upper slice, be installed with upper fixed seat, under described toeguard, on sheet, be 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, under described toeguard upper slice and described toeguard, sheet is hinged by hinge, and the rotary centerline along continuous straight runs of described hinge arranges, 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, the equal along continuous straight runs setting of described bending edges and described lower edge and the two are parallel to each other.
In one embodiment, the quantity of described upper rolling member is multiple, and multiple described upper rolling members are spaced apart along same rotary centerline on described bending edges; The quantity of described lower rolling member is multiple, and multiple described lower rolling members are 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 the corresponding setting one by one in short transverse of described multiple lower rolling members.
Owing to adopting technique scheme, rotatable toe guard of elevator car of the present invention has the following advantages: by torsion spring being set between sheet under the toeguard upper slice being hinged and toeguard, in the time of elevator cage operation, guarantee that by the torsion of torsion spring toeguard upper slice keeps the state of vertical expansion with sheet under toeguard, and in elevator cab movement to pit, under toeguard, sheet relatively provides return action power to make sheet under toeguard return back to plumbness by torsion spring after rotation; Under toeguard, the lower edge of the bending part of sheet arranges lower rolling member, when elevator cage operation is during to pit, conflict pit ground rolling along pit bottom surface of lower rolling member, so sheet carries out certain angle relative to toeguard upper slice and rotates under toeguard, has reduced toeguard to pit depth requirement; The upper rolling member that the bending edges of the upper end of the bending part of sheet arranges under toeguard; can guarantee to rotate when more than 90 ° relative to toeguard upper slice when sheet under toeguard; avoid side and the pit bottom surface of sheet under toeguard to bump or rub, play the effect of sheet under protection toeguard.
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 that lower rolling member of the present invention rigidly connects the view while touching 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, sheet under toeguard; 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.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.
Refer to Fig. 1 to Fig. 6, the rotatable toe guard of elevator car of one of the present invention, comprises sheet 2 under toeguard upper slice 1 and toeguard, and under toeguard upper slice 1 and toeguard, sheet 2 is hinged by two of 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 is fixed at the bottom of the sedan-chair of car on 6.Under toeguard, the bottom of sheet 2 has the bending part 21 towards the turnover of car inner side.
Under toeguard upper slice 1 and toeguard, between sheet 2, be also connected with the torsion spring 5 for rotation restoring force is provided.Wherein, be installed with upper fixed seat 51 on toeguard upper slice 1, be installed with lower fixed seat 52 under described toeguard on sheet 2, 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 in the time rotating arranges in horizontal direction and parallels with the rotary centerline of hinge 3.
Under the upper end of bending part 21 and toeguard, the junction of sheet 2 has bending edges 211, and the lower end of bending part 21 has lower edge 212.Bending edges 211 along continuous straight runs settings, also along continuous straight runs setting of lower edge 212, and bending edges 211 and lower edge 212 parallel.
On bending edges 211, along continuous straight runs is fixed with rotating shaft 420, and the axial line of upper rotating shaft 420 parallels with the rotary centerline of hinge 3.In upper rotating shaft 420, be evenly arranged at intervals 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 be gone up rotating shaft 420 for center of turn rotation.
On lower edge 212, be 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, be evenly arranged at intervals 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, 41 and 3 upper rolling members 42 of 3 lower rolling members are all rollers, and they arrange in pairs correspondingly in short transverse.And, in order to ensure elevator cage operation during to pit, under toeguard, sheet 21 contacts the rolling effect of the rear lower rolling member 41 of rotation and upper rolling member 42 with pit ground, 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 sheet 2 under toeguard 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 and lower rolling member 41 that exceed 3 pairs can be set; The width of toeguard hour, can arrange the upper rolling member 42 and lower rolling member 41 that are less than 3 pairs, or only have a pair of.
In the time that lift car moves above bottom flat bed, under the toeguard upper slice 1 of rotatable toe guard of elevator car and toeguard, sheet 2 keeps deployed condition under the application force of torsion spring 5, and under toeguard upper slice 1 and toeguard, sheet 2 is all positioned at vertical plane.
In the time that elevator cage operation arrives bottom flat bed, as shown in Figure 3, the lower rolling member 41 of rotatable toe guard of elevator car lower end touches pit ground 7, and now rotatable toe guard of elevator car is about to enter slew mode by deployed condition.
As shown in Figure 4, it shows the lateral plan of the rotatable toe guard of elevator car of the present invention at slew mode first stage.Along with lift car continues operation downwards, because bending part 21 is towards the turnover of car inner side, therefore descend rolling member 41 and to make sheet 2 sideway swivel in car under toeguard along ground surface.
When lift car continues operation downwards, lower rolling member 41 will contact pit bottom surface 7 with upper rolling member 42 simultaneously, and the torsion that now under toeguard, sheet 2 has overcome torsion spring rotates through certain angle.
As shown in Figure 5, it shows the lateral plan of the rotatable toe guard of elevator car of the present invention in slew mode subordinate phase.When lift car continues operation downwards, now under toeguard, sheet 2 will be rolled along pit ground 7 by upper rolling member 42, and under toeguard, sheet 2 continues sideway swivel in car, and now, built on stilts of lower rolling member 41.
As shown in Figure 6, it shows the lateral plan of the rotatable toe guard of elevator car of the present invention in the slew mode phase III.When lift car continues operation downwards, now go up rolling member 42 relative pit ground 7 side rolls in car, under toeguard sheet 2 relatively toeguard upper slice 1 rotate through 90 °.Because the radius of upper rolling member 42 is greater than the radius of the rotating shaft of hinge 3, therefore, the rotating shaft of hinge 3 does not touch pit ground.If the radius of upper rolling member 42 is enough large, under toeguard sheet 2 relatively the anglec of rotation of toeguard upper slice 1 will be greater than 90 °.
When lift car upwards moves while leaving pit, under toeguard, sheet 2 will return to vertical state under the effect at torsion spring 5.
From above-described embodiment, rotatable toe guard of elevator car of the present invention is by connecting torsion spring 5 between sheet 2 under the toeguard upper slice 1 being hinged and toeguard, being made to have sheet 2 under the toeguard of bending part can rotate relative to toeguard upper slice 1 by upper rolling member 42 and the rolling action of lower rolling member 41, 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 (7)
1. a rotatable toe guard of elevator car, comprise sheet (2) under the toeguard upper slice (1) that is hinged and toeguard, the bottom of sheet under described toeguard (2) has the bending part (21) towards the turnover of car inner side, it is characterized in that: under described toeguard upper slice (1) and described toeguard, between sheet (2), be also connected with the torsion spring (5) for rotation restoring force is provided; Under the upper end of described bending part (21) and described toeguard, the junction of sheet (2) has bending edges (211), and on described bending edges (211), being installed with can be along the upper rolling member (42) of self axial-rotation; The lower end of described bending part (21) has lower edge (212), and on described lower edge (212), being installed with can be along the lower rolling member (41) of self axial-rotation.
2. the rotatable toe guard of elevator car of one according to claim 1, it is characterized in that: on described toeguard upper slice (1), be installed with upper fixed seat (51), on sheet under described toeguard (2), be installed with lower fixed seat (52), it is upper that 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. the rotatable toe guard of elevator car of one according to claim 1, it is characterized in that: under described toeguard upper slice (1) and described toeguard, sheet (2) is hinged by hinge (3), the rotary centerline along continuous straight runs of described hinge (3) arranges, and the rotary centerline of described torsion spring (5) parallels with the rotary centerline of described hinge (3).
4. the rotatable toe guard of elevator car of one 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. the rotatable toe guard of elevator car of one according to claim 4, is characterized in that: described bending edges (211) and described lower edge (212) all along continuous straight runs setting and the two are parallel to each other.
6. according to the rotatable toe guard of elevator car of one described in claim 1 to 5 any one, it is characterized in that: the quantity of described upper rolling member (42) is multiple, multiple described upper rolling members (42) are upper spaced apart along same rotary centerline at described bending edges (211); The quantity of described lower rolling member (41) is multiple, and multiple described lower rolling members (41) are upper spaced apart along same rotary centerline at described lower edge (212).
7. the rotatable toe guard of elevator car of one according to claim 6, it is characterized in that: the quantity of described upper rolling member (42) is identical with the quantity of described lower rolling member (41), and multiple described upper rolling members (42) and described multiple lower rolling members (41) corresponding setting one by one in short transverse.
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 |
Publications (2)
| Publication Number | Publication Date |
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| CN103896142A true CN103896142A (en) | 2014-07-02 |
| CN103896142B CN103896142B (en) | 2016-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410135698.8A Active CN103896142B (en) | 2014-04-04 | 2014-04-04 | A kind of Rotatable lift car toe guard |
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| CN (1) | CN103896142B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106744185A (en) * | 2017-01-16 | 2017-05-31 | 朱辰晧 | A kind of folding utility toe guard of elevator car |
| CN108275552A (en) * | 2018-03-28 | 2018-07-13 | 怡达快速电梯有限公司 | A kind of foldable elevator toe guard suitable for shallow pit |
| 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 |
| CN110407065A (en) * | 2018-04-28 | 2019-11-05 | 中国建筑科学研究院有限公司建筑机械化研究分院 | Toeguard height-adjustable device and lift appliance system |
| CN114450245A (en) * | 2019-09-30 | 2022-05-06 | 因温特奥股份公司 | Elevator installation |
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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 |
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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 |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106744185A (en) * | 2017-01-16 | 2017-05-31 | 朱辰晧 | A kind of folding utility toe guard of elevator car |
| CN108275552A (en) * | 2018-03-28 | 2018-07-13 | 怡达快速电梯有限公司 | A kind of foldable elevator toe guard suitable for shallow pit |
| 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 |
| CN110407065A (en) * | 2018-04-28 | 2019-11-05 | 中国建筑科学研究院有限公司建筑机械化研究分院 | Toeguard height-adjustable device and lift appliance system |
| 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 |
| CN114450245A (en) * | 2019-09-30 | 2022-05-06 | 因温特奥股份公司 | Elevator installation |
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| Publication number | Publication date |
|---|---|
| CN103896142B (en) | 2016-01-06 |
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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 |
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