CN102444245B - Staggered-interruption type safety stair - Google Patents

Staggered-interruption type safety stair Download PDF

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Publication number
CN102444245B
CN102444245B CN 201110269657 CN201110269657A CN102444245B CN 102444245 B CN102444245 B CN 102444245B CN 201110269657 CN201110269657 CN 201110269657 CN 201110269657 A CN201110269657 A CN 201110269657A CN 102444245 B CN102444245 B CN 102444245B
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China
Prior art keywords
passage
dividing plate
stair
latch
securing rod
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CN 201110269657
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CN102444245A (en
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梁伟
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Shanghai Du Banglong electromechanical Co., Ltd. Lu four branch
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Ningbo Yinzhou Qianfeng Machinery Technology Co Ltd
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Abstract

The invention relates to a stair, in particular to a staggered-interruption type safety stair, which consists of stair sections, vertical ribs, wiring frames, electric wires and blocking units, wherein both sides of the stair sections are provided with a plurality of blocking units at equal intervals respectively; the blocking units on both sides of the stair sections correspond in a staggered way; a vertical edge of each speed-limiting clapboard is positioned on one side edge of each stair section; a torsion spring is sleeved on each clapboard revolving shaft; the clapboard revolving shaft is positioned in a revolving shaft hole; the bottom surface of a previous stair section is provided with a motor frame; a motor is fixed on the motor frame; and a motor shaft of the motor is inserted into each speed-limiting clapboard. Due to the adoption of the staggered-interruption type safety stair, the stranded density and people flow speed on the stair can be lowered, and trampling accidents can be avoided.

Description

Staggered interrupt safety stair
Technical field
The present invention relates to a kind of stair, particularly relate to a kind of staggered interrupt safety stair.
Background technology
Often trample accident on the stair in campus, as: evenings 8 on October 25th, 2005 point, Tongjiang County, Bazhong City, Sichuan Province is extensively received primary school and is crowded and trample in the accident, 8 student's death, 17 students are injured; At the beginning of 2005 11 months, tread event when student's stair activity takes place in Anhui Bozhou City Qiaocheng District secondhand clothes or clothes badly tailored and of poor material primary school, 12 people are injured; Cultivate people of ability after school 8 people's death, student that 26 people are injured take place tramples accident in Xiangxiang City, Hunan Province in 2009, Xiangxiang City responds actively, and in time gives treatment to the injured student, carries out student died in an accident's aftermath, and strictly handles the accident responsibility people; 11: 50 Beijing time of on November 29th, 2010, when the student goes downstairs during the setting-up exercises during the break of Xinjiang Uygur Autonomous Regions's Aksu City the 5th primary school,, cause the accident of trampling because the student in front falls down, cause 41 students injured, wherein severely injured 7 people, slight wound 34 people.
Why do the stair in campus trample accident time and again? trace it to its cause mainly contain following some:
1. existing teaching building number of student is more, and the stair negligible amounts.
2. adolescent student is in the growth stage, and nature are active, and the jump of liking running is excessive at the process medium velocity of going downstairs.
Therefore, above-mentioned two reasons have caused the number of student that passes through the unit length stair in the unit interval bigger, particularly in setting-up exercises during the break or classes are over time, visitors flowrate density on the stair is considerably beyond the people's current density normal the time, in this case, in case there is the people to fall, cause falling of many people in the situation following moment that has little time to stand up, trample accident then.
The generation time and again of the accident of trampling of the stair in campus, be enough to cause the attention of the Ministry of Education and each campus administrative department, but existing preventive action only are to prevent the generation of the accident of trampling by " safety management ", " safety inspection " and methods such as " safety educations ", do not have solid technological means and eradicate the potential safety hazard that causes tread event.
Summary of the invention
The present invention provides a kind of staggered interrupt safety stair that can reduce the visitors flowrate density on the stair in the peak period of going downstairs on the student automatically for solving the deficiencies in the prior art.
The scheme that solves the technology of the present invention problem is: staggered interrupt safety stair are made of stair bench, vertical muscle, wiring frame, electric wire and blocker unit.Be respectively equipped with a plurality of equally spaced blocker unit in the both sides of stair bench, the blocker unit of stair bench both sides is staggered corresponding.
Each blocker unit constitutes by motor frame, electromagnet, speed limit dividing plate, latch, lock hole, securing rod passage, securing rod, fin, screw, motor, pin, motor shaft, shaft hole, dividing plate rotating shaft, torsion spring, annular groove, bump post, post hole, back-moving spring, the passage of unblanking, annular groove latch, trip lever passage, trip lever, locking spring and latch passage.Wherein, the speed limit dividing plate is the rectangular slab of a vertical direction, and a vertical edge of each speed limit dividing plate all is positioned at wherein side edge of stair bench.
One vertical shaft hole is arranged at the bottom at the vertical edge of the side edge that is positioned at the stair bench of speed limit dividing plate, with be with torsion spring in the side dividing plate rotating shaft fixing, the vertical direction setting of the horizontal plane of the step of stair bench, and dividing plate rotating shaft and torsion spring are in together in the described shaft hole, one end of torsion spring and the inwall of shaft hole are fixed, and the other end of torsion spring and dividing plate rotating shaft are fixed.On the bottom surface of last layer stair bench, have one to be fixed in the motor frame of the bottom surface of stair bench by screw and fin with the vertically corresponding position of dividing plate rotating shaft, be fixed with motor in the motor frame, the motor shaft of motor stretches out from motor frame lower end and vertically inserts in the speed limit dividing plate, and pin laterally runs through speed limit dividing plate and motor shaft.Dividing plate rotating shaft and motor shaft coaxial inner conductor.
Have in the vertical edge of another of speed limit dividing plate vertical direction, vertically run through the securing rod passage of speed limit dividing plate, securing rod is in the securing rod passage and becomes assembling relation movingly with the securing rod passage.The length of securing rod is less than the length of securing rod passage.One annular groove is arranged on the sidewall of securing rod.Wiring frame by the fixing bar shaped of a plurality of vertical muscle is arranged on the bottom surface of the stair bench of last layer, be laid with electric wire in the wiring frame, the bottom of wiring frame is fixed with vertical electromagnet.When the speed limit dividing plate is in the perpendicular state of the side of stair bench, the top of securing rod and the bottom of electromagnet over against the vertical lock hole of the bottom of, securing rod and the horizontal plane of being located at the stair bench over against.
Be provided with at the speed limit dividing plate on the vertical end face at vertical edge of securing rod passage and have a latch passage, the cross section of latch passage is a regular hexagon, and the latch passage communicates with the securing rod passage and the axial line of the two intersects vertically.The speed limit dividing plate on the side in higher stair ladder step, have a post hole, the passage of unblanking be in the speed limit dividing plate and with post hole concentric and the cylindrical cavity that communicates, the passage of unblanking is by communicating with the latch passage with the through hole of the passage concentric of unblanking.The unblank axial line of passage and latch passage intersects vertically.The diameter of post hole and described through hole is all less than the diameter of the passage of unblanking.Be with back-moving spring on the part in trip lever is in the passage of unblanking.
The height and position of the axial line in described post hole the post hole towards higher one-level stairway step vertical plane between the lower limb.Vertical distance between annular groove latch and the speed limit dividing plate bottom surface is greater than the upper edge of annular groove and the distance between the securing rod bottom.
The bump post is in the passage of unblanking, and the outer end of bump post is stretched out from the post hole and become assembling relation movingly with the post hole, and there is an annular protrusion inner end of bump post, and this annular protrusion becomes assembling relation movingly with the passage of unblanking.Columniform trip lever is integral body and concentric with the inner end of bump post.Trip lever runs through described through hole and stretches in the latch passage.The annular groove latch be in the latch passage, becomes with the latch passage vertical that concern movingly, inner end have an inclined-plane block, described inclined-plane is over against the end face of described trip lever, the end, inclined-plane of annular groove latch is in the annular groove of described securing rod.The sealing of the outer end of latch passage is provided with the locking spring between the blind end of latch passage and annular groove latch.
The switch of electromagnet and motor is located in the control centre of building at stair place.
In non-period rush hours, the speed limit dividing plate of each blocker unit all keeps the state that pastes mutually with the staircase side wall under the twisting force of torsion spring; When being in period rush hours, open the switch of motor, the speed limit dividing plate of each blocker unit is the axle center with the dividing plate rotating shaft all under the rotation of motor drives, to higher one-level step direction rotation, when the bump post clashed into the vertical plane generation of higher one-level stairway step, the inclined-plane that trip lever hits the annular groove latch made annular groove latch retraction, and extract out from annular groove the end, inclined-plane of annular groove latch, in falling into lock hole, the position of speed limit dividing plate is locked under action of gravity for securing rod.In the time of stair need being returned back to the state of non-period rush hours, only need open the power switch of electromagnet, under the attraction of electromagnet, securing rod moves straight up, when the end, inclined-plane of annular groove and annular groove latch is in equal height, under the promotion of locking spring, the end, inclined-plane of annular groove latch is inserted in the annular groove again, this moment, securing rod was disengaged the locking position of speed limit dividing plate, under the twisting force of torsion spring, the speed limit dividing plate rotates to the state that pastes mutually with the staircase side wall around the dividing plate rotating shaft again.
Adopt such scheme, can reach following beneficial effect:
1, because the present invention is respectively equipped with a plurality of equidistant blocker unit in stair bench both sides, and the blocker unit of both sides is staggered corresponding, so just the route with pedestrian's stair activity changes snakelike slalom course by original into along the vertical rectilinear direction of stair, when greatly reducing pedestrian's stair activity like this, along the speed of the vertical rectilinear direction of stair, avoid taking place because of the stair activity excessive velocities causes the accident of trampling of falling and then causing.
2, because the present invention is respectively equipped with a plurality of equidistant blocker unit in stair bench both sides, effectively having carried out step constriction and handled in the stair activity process so just to stair by width, make along the pedestrian density on the stair between per two blocker unit of stair longitudinal direction and reduce significantly, avoided the accident of trampling that causes because of people's current density is excessive.
3, the existence of blocker unit on the one hand is convenient to the pedestrian behind fall on stairs, can rely on stopping and supporting rapidly and stand up of speed limit dividing plate, makes the pedestrian who falls can not continue to roll to the stair lower under the stream of people's extruding; On the other hand, even the accident of trampling takes place, blocker unit can be confined to accident between two blocker unit, thus the chain accident of trampling of " snowball " type of avoiding the pedestrian because of accident origination point below to fall in succession and produce.
4, because the present invention only just can enable blocker unit in period rush hours, and the speed limit dividing plate in the blocker unit is by the wall setting in non-period rush hours, therefore can't be to easy to use and attractive in appearance the impacting of stair.Simultaneously, this also makes the present invention possess a terraced two purposes.
5, when needs are enabled or are stopped using blocker unit, only need the switch of electromagnet or motor is operated, be convenient to very much control.
Description of drawings
Fig. 1 is the A-A sectional drawing of Fig. 2;
Fig. 2 is a plan view of the present invention;
Fig. 3 is the structure enlarged diagram at the B place of Fig. 2;
Structural representation when Fig. 4 inserts annular groove for the annular groove latch;
Structural representation when Fig. 5 withdraws from the annular groove latch for trip lever from chute;
Fig. 6 is the C-C section enlarged diagram of Fig. 4;
Fig. 7 is the D-D section enlarged diagram of Fig. 5.
Figure: 1. Stair 2. Vertical ribs 3. Wiring rack 4. Motor frame 5. Electromagnets 6 speed separator 7. Wires 8. Lock hole 9. Lock lever channel 10. Lock lever 11. Wing piece 12. screws 13. motor 14 pin 15. motor shaft 16. shaft hole 17. bulkhead shaft 18. torsion spring 19. annular recess 20. impact column 21. cylinder bore 22. return spring 23. lock channel 24. ring groove bolt 25. unlocking rod passage 26. release lever 27. lock spring 28. latch channel
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
Staggered interrupt safety stair are made of stair bench 1, vertical muscle 2, wiring frame 3, electric wire 7 and blocker unit.Be respectively equipped with a plurality of equally spaced blocker unit in the both sides of stair bench 1, the blocker unit of stair bench 1 both sides is staggered corresponding.
Each blocker unit constitutes by motor frame 4, electromagnet 5, speed limit dividing plate 6, latch, lock hole 8, securing rod passage 9, securing rod 10, fin 11, screw 12, motor 13, pin 14, motor shaft 15, shaft hole 16, dividing plate rotating shaft 17, torsion spring 18, annular groove 19, bump post 20, post hole 21, back-moving spring 22, the passage 23 of unblanking, annular groove latch 24, trip lever passage 25, trip lever 26, locking spring 27 and latch passage 28.Wherein, speed limit dividing plate 6 is the rectangular slab of a vertical direction, and a vertical edge of each speed limit dividing plate 6 all is positioned at wherein side edge of stair bench 1.
One vertical shaft hole 16 is arranged at the bottom at the vertical edge of the side edge that is positioned at stair bench 1 of speed limit dividing plate 6, with be with torsion spring 18 in the side dividing plate rotating shaft 17 fixing, the vertical direction setting of the horizontal plane of the step of stair bench 1, and dividing plate rotating shaft 17 and torsion spring 18 are in together in the described shaft hole 16, one end of torsion spring 18 and the inwall of shaft hole 16 are fixed, and the other end of torsion spring 18 and dividing plate rotating shaft 17 are fixing.On the bottom surface of last layer stair bench 1, have one to be fixed in the motor frame 4 of the bottom surface of stair bench 1 by screw 12 and fin 11 with the vertically corresponding position of dividing plate rotating shaft 17, be fixed with motor 13 in the motor frame 4, the motor shaft 15 of motor 13 stretches out from motor frame 4 lower ends and vertically inserts in the speed limit dividing plate 6, and pin 14 laterally runs through speed limit dividing plate 6 and motor shaft 15.Dividing plate rotating shaft 17 and motor shaft 15 coaxial inner conductors.
Have in the vertical edge of another of speed limit dividing plate 6 vertical direction, vertically run through the securing rod passage 9 of speed limit dividing plate 6, securing rod 10 be in the securing rod passage 9 and with 9 one-tenth assemblings of securing rod passage relation movingly.The length of securing rod 10 is less than the length of securing rod passage 9.One annular groove 19 is arranged on the sidewall of securing rod 10.Wiring frame 3 by the fixing bar shaped of a plurality of vertical muscle 2 is arranged on the bottom surface of the stair bench 1 of last layer, be laid with electric wire 7 in the wiring frame 3, the bottom of wiring frame 3 is fixed with vertical electromagnet 5.When speed limit dividing plate 6 is in the perpendicular state of the side of stair bench 1, the bottom of the top of securing rod 10 and electromagnet 5 over against the vertical lock hole 8 of the bottom of, securing rod 10 and the horizontal plane of being located at stair bench 1 over against.
Be provided with at speed limit dividing plate 6 on the vertical end face at vertical edge of securing rod passage 9 and have a latch passage 28, the cross section of latch passage 28 is a regular hexagon, and latch passage 28 communicates with securing rod passage 9 and the axial line of the two intersects vertically.Speed limit dividing plate 6 on the side in higher stair ladder step, have a post hole 21, unblank passage 23 be in the speed limit dividing plate 6 and with post hole 21 concentrics and the cylindrical cavity that communicates, the passage 23 of unblanking communicates with latch passage 28 by the through hole with passage 23 concentrics of unblanking.The unblank axial line of passage 23 and latch passage 28 intersects vertically.The diameter of post hole 21 and described through hole is all less than the diameter of the passage 23 of unblanking.Be with back-moving spring 22 on the part in trip lever 26 is in the passage 23 of unblanking.
21 of the height and positions of the axial line in described post hole 21 in the post hole towards higher one-level stairway step vertical plane between the lower limb.Vertical distance between annular groove latch 24 and speed limit dividing plate 6 bottom surfaces is greater than the upper edge of annular groove 19 and the distance between securing rod 10 bottoms.
Bump post 20 is in the passage 23 of unblanking, and the outer end of bump post 20 is stretched out from post hole 21 and concerned movingly that with the 21 one-tenth assemblings in post hole there is an annular protrusion inner end of bump post 20, this annular protrusion and 23 one-tenth assemblings of passage relation movingly of unblanking.Columniform trip lever 26 is integral body and concentric with the inner end of bump post 20.Trip lever 26 runs through described through hole and stretches in the latch passage 28.Annular groove latch 24 be in the latch passage 28, with vertical that concern movingly, the inner end of 28 one-tenths in latch passage have an inclined-plane block, described inclined-plane is over against the end face of described trip lever 26, and the end, inclined-plane of annular groove latch 24 is in the annular groove 19 of described securing rod 10.The sealing of the outer end of latch passage 28 is provided with between the blind end of latch passage 28 and annular groove latch 24 and locks spring 27.
The switch of electromagnet 5 and motor 13 is located in the control centre of building at stair place.
In non-period rush hours, the speed limit dividing plate 6 of each blocker unit all keeps the state that pastes mutually with the staircase side wall under the twisting force of torsion spring 18; When being in period rush hours, open the switch of motor 13, the speed limit dividing plate 6 of each blocker unit is the axle center with dividing plate rotating shaft 17 all under the rotation of motor 13 drives, to higher one-level step direction rotation, when bump post 20 clashes into the vertical plane generation of higher one-level stairway step, the inclined-plane that trip lever 26 hits annular groove latch 24 makes annular groove latch 24 retractions, extract out from annular groove 19 end, inclined-plane of annular groove latch 24, in falling into lock hole 8, the position of speed limit dividing plate 6 is locked under action of gravity for securing rod 10.In the time of stair need being returned back to the state of non-period rush hours, only need open the power switch of electromagnet 5, under the attraction of electromagnet 5, securing rod 10 moves straight up, when the end, inclined-plane of annular groove 19 and annular groove latch 24 is in equal height, under the promotion of locking spring 27, insert in the annular groove 19 again the end, inclined-plane of annular groove latch 24, the locking position of 10 pairs of speed limit dividing plates 6 of securing rod this moment is disengaged, under the twisting force of torsion spring 18, speed limit dividing plate 6 rotates to the state that pastes mutually with the staircase side wall around dividing plate rotating shaft 17 again.

Claims (1)

1. staggered interrupt safety stair, by the stair bench, vertical muscle, wiring frame, electric wire and blocker unit constitute, it is characterized in that: be respectively equipped with a plurality of equally spaced blocker unit in the both sides of stair bench, the blocker unit of stair bench both sides is staggered corresponding, each blocker unit is by the motor frame, electromagnet, the speed limit dividing plate, latch, lock hole, the securing rod passage, securing rod, fin, screw, motor, pin, motor shaft, shaft hole, the dividing plate rotating shaft, torsion spring, annular groove, the bump post, the post hole, back-moving spring, the passage of unblanking, the annular groove latch, the trip lever passage, trip lever, locking spring and latch passage constitute, the speed limit dividing plate is the rectangular slab of a vertical direction, a vertical edge of each speed limit dividing plate all is positioned at wherein side edge of stair bench, one vertical shaft hole is arranged at the bottom at the vertical edge of the side edge that is positioned at the stair bench of speed limit dividing plate, fixing with the side of the horizontal plane of the step of stair bench, be with torsion spring in the dividing plate rotating shaft of vertical direction setting, and dividing plate rotating shaft and torsion spring are in together in the described shaft hole, one end of torsion spring and the inwall of shaft hole are fixed, the other end of torsion spring and dividing plate rotating shaft are fixed, on the bottom surface of last layer stair bench, have one to be fixed in the motor frame of the bottom surface of stair bench by screw and fin with the vertically corresponding position of dividing plate rotating shaft, be fixed with motor in the motor frame, the motor shaft of motor stretches out from motor frame lower end and vertically inserts in the speed limit dividing plate, pin laterally runs through speed limit dividing plate and motor shaft, dividing plate rotating shaft and motor shaft coaxial inner conductor, one vertical direction is arranged in the vertical edge of another of speed limit dividing plate, the securing rod passage that vertically runs through the speed limit dividing plate, securing rod is in the securing rod passage and with the securing rod passage and becomes assembling to concern movingly, the length of securing rod is less than the length of securing rod passage, one annular groove is arranged on the sidewall of securing rod, wiring frame by the fixing bar shaped of a plurality of vertical muscle is arranged on the bottom surface of the stair bench of last layer, be laid with electric wire in the wiring frame, the bottom of wiring frame is fixed with vertical electromagnet, when the speed limit dividing plate is in the perpendicular state of the side of stair bench, the top of securing rod and the bottom of electromagnet over against, the bottom of securing rod be located at the stair bench horizontal plane vertical lock hole over against, be provided with at the speed limit dividing plate on the vertical end face at vertical edge of securing rod passage and have a latch passage, the cross section of latch passage is a regular hexagon, the latch passage communicates with the securing rod passage and the axial line of the two intersects vertically, the speed limit dividing plate on the side in higher stair ladder step, have a post hole, unblank passage be in the speed limit dividing plate and with post hole concentric and the cylindrical cavity that communicates, unblank passage by communicating with the latch passage with the through hole of the passage concentric of unblanking, the unblank axial line of passage and latch passage intersects vertically, the diameter of post hole and described through hole is all less than the diameter of the passage of unblanking, be with back-moving spring on the part in trip lever is in the passage of unblanking, the height and position of the axial line in described post hole the post hole towards higher one-level stairway step vertical plane between the lower limb, vertical distance between annular groove latch and the speed limit dividing plate bottom surface is greater than the upper edge of annular groove and the distance between the securing rod bottom, the bump post is in the passage of unblanking, the outer end of bump post is stretched out from the post hole and is become assembling to concern movingly with the post hole, there is an annular protrusion inner end of bump post, this annular protrusion becomes assembling relation movingly with the passage of unblanking, columniform trip lever is integral body and concentric with the inner end of bump post, trip lever runs through described through hole and stretches in the latch passage, the annular groove latch is in the latch passage, become vertically relation movingly with the latch passage, the inner end have an inclined-plane block, described inclined-plane is over against the end face of described trip lever, the end, inclined-plane of annular groove latch is in the annular groove of described securing rod, the outer end sealing of latch passage, be provided with the locking spring between the blind end of latch passage and annular groove latch, the switch of electromagnet and motor is located in the control centre of building at stair place.
CN 201110269657 2011-09-13 2011-09-13 Staggered-interruption type safety stair Active CN102444245B (en)

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Publication number Priority date Publication date Assignee Title
GB2497608B (en) * 2012-05-14 2016-09-21 Teletower Com Ltd Telescopic loft ladder

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CN202273361U (en) * 2011-09-13 2012-06-13 宁波市鄞州千峰机械科技有限公司 Special staircase for preventing stampede accidents due to crowding

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