CN102398845A - Anti-reversion device for escalator or moving sidewalk - Google Patents
Anti-reversion device for escalator or moving sidewalk Download PDFInfo
- Publication number
- CN102398845A CN102398845A CN2011103844520A CN201110384452A CN102398845A CN 102398845 A CN102398845 A CN 102398845A CN 2011103844520 A CN2011103844520 A CN 2011103844520A CN 201110384452 A CN201110384452 A CN 201110384452A CN 102398845 A CN102398845 A CN 102398845A
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- Prior art keywords
- escalator
- cam
- key
- safety switch
- board
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Abstract
The invention discloses an anti-reversion device for an escalator or a moving sidewalk. When the escalator or the moving sidewalk moves upwards, a motor operates to make a safety switch on a switch board positioned on a rotation path of a cam; however, during upward movement, an extruded part of the outline of the cam can push a buffering head to move; the safety switch on the switch board can be driven to move through the movement of the buffering head, so the safety switch is separated from the rotation path of the cam; therefore, normal upward movement of the escalator or the moving sidewalk can be guaranteed; once non-operable reversion occurs in a driving device, namely the escalator or the moving sidewalk suddenly moves downwards during upward movement, the extruded part of the outline of the cam can be crashed into the safety switch; and the safety switch sends a running stop signal, and the escalator or the moving sidewalk stops running immediately, so the safety of passengers is guaranteed. The anti-reversion device realizes an upward movement anti-reversion function through a mechanical structure, and the safety switch, has low cost and is operated stably and reliably.
Description
Technical field
the present invention relates to the anti-kickback device of escalator or moving sidewalk.
Background technology
if change into suddenly descendingly, will be caused very big threat to passenger's safety, so being provided with of up anti-kickback device is extremely important when escalator or moving sidewalk are up.In the prior art, anti-kickback device generally is that PLC control is perhaps adopted contact switch, and the former costs an arm and a leg, and the latter regulates difficulty, damages easily.
Summary of the invention
the purpose of this invention is to provide the anti-kickback device of realizing through physical construction and safety switch on escalator or the moving sidewalk, and this anti-kickback device cost is low, stable and reliable operation.
are for achieving the above object; The technical scheme that the present invention adopts is: the anti-kickback device of escalator or moving sidewalk; Support on the truss that comprise the cam that is fixedly installed on the axle drive shaft that is used to drive said escalator or moving sidewalk operation, is arranged on said escalator or moving sidewalk, be arranged on motor on the said support, be arranged on control wheel, an end on the output shaft of said motor rotate the connecting rod that is arranged on the said control wheel, with the other end of said connecting rod rotate the key-board that is provided with, be arranged on the said key-board and can be touched by the projection of said camb contour and send the safety switch that stops said escalator or moving sidewalk run signal then, can be arranged on movably on the said support and can be promoted the buffer head that moves by the projection of said camb contour; The setting that rotates of said buffer head and said key-board; The rotational axis line of said rotation setting all parallels setting with the axial line of the output shaft of said motor; Said motor has first mode of operation and second mode of operation; Said buffer head has first shift position and second shift position; When said motor was in first mode of operation and said buffer head and is in first shift position, the safety switch on the said key-board was on the rotation path of said cam; When said motor was in first mode of operation and said buffer head and is in second shift position, the safety switch on the said key-board broke away from the rotation path of said cam; When said motor was in second mode of operation and said buffer head and is in first shift position or second shift position, the safety switch on the said key-board broke away from the rotation path of said cam; Being provided with between said buffer head and the said support to provide this buffer head elastic-restoring force to make this buffer head return back to the elastic component of first shift position from second shift position.
preferably, said key-board is provided with forbids the limiting stopper that this key-board moves in the time of can making that the safety switch on this key-board is touched by said cam with said support is inconsistent.
preferably offer the pilot hole that extends along the moving direction of said buffer head on the said support, the rotate turning cylinder of setting of said buffer head and said key-board is through in the said pilot hole.
owing to the utilization of technique scheme, the present invention compared with prior art has advantage: when escalator or moving sidewalk were descending, motor was in second mode of operation; The motor band control wheel and is rotated; Make the safety switch on the key-board break away from the rotation path of cam through connecting rod, at this moment, cam is in the process along with drive shaft turns; Even promoting buffer head moves; No matter buffer head is in first shift position still is second shift position, and then the safety switch on the key-board keeps breaking away from the rotation path of cam, and this anti-kickback device can not have influence on the normally descending of escalator or moving sidewalk; When escalator or moving sidewalk were up, motor was in first mode of operation, and motor action makes the safety switch on the key-board be on the rotation path of cam; But when up, the salient branch of camb contour promotes buffer head and moves, and the mobile meeting of buffer head is moved with the safety switch on the key-board; Buffer head is in second shift position, makes safety switch break away from the rotation path of cam, guarantees the normally up of escalator or moving sidewalk like this; In case the reverse of non-manipulation type takes place in actuating device; Being escalator or moving sidewalk is reversed into descendingly suddenly by up, and then the salient branch of camb contour strikes safety switch, and safety switch sends signal out of service; Escalator or moving sidewalk in time stop, and guarantee passenger's safety.This anti-kickback device is realized up anti-reversing function through physical construction and safety switch, and this anti-kickback device cost is low, stable and reliable operation.
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Description of drawings
Accompanying drawing 1 is a schematic perspective view one of the present invention, and wherein escalator or moving sidewalk are up, and safety switch is on the rotation path of cam;
Accompanying drawing 2 is a schematic perspective view two of the present invention, and wherein escalator or moving sidewalk are descending, and safety switch breaks away from the rotation path of cam;
Accompanying drawing 3 is for motor, buffer head on the medium-height trestle of the present invention and the schematic perspective view of connection structure of the key-board of safety switch is housed, and wherein motor is in first mode of operation;
attach Figure 4 and 5 for motor, buffer head on the support that shows from different perspectives among the present invention and the schematic perspective view of connection structure of the key-board of safety switch is housed, and wherein motor is in second mode of operation.
The specific embodiment
Structure of the present invention is further set forth below in conjunction with accompanying drawing in
.
are referring to shown in Fig. 1-5; The anti-kickback device of escalator or moving sidewalk is used to prevent the up reverse of escalator or moving sidewalk, and does not influence escalator or the descending normal operation of moving sidewalk; This anti-kickback device comprises cam 1, support 3, motor 4, control wheel 5, connecting rod 6, key-board 7, safety switch 8, buffer head 9; Cam 1 is fixedly installed on the axle drive shaft, and is as illustrated in fig. 1 and 2, and cam 1 can be fixed on the end face of axle drive shaft through bolt, spring washer, flat gasket; This axle drive shaft is the output shaft of drive motor; Be used to drive the operation of escalator or moving sidewalk, escalator or moving sidewalk are when upstream or downstream like this, and cam 1 meeting is carried out cw along with axle drive shaft or rotated counterclockwise.Support 3 is fixedly installed on the truss 2 of escalator or moving sidewalk, and is as illustrated in fig. 1 and 2, and support 3 is arranged on the truss 2 of cam 1 adjacent position through the matching and fixing of bolts and nuts; Motor 4 is contained on the support 3, and motor 4 is selected torque motor for use, and the output shaft of motor 4 is provided with control wheel 5; Drive control wheels 5 through motor 4 like this and rotate, an end of connecting rod 6 is rotated and is arranged on the position that control wheel 5 departs from center of turn, the setting that rotates of the other end of connecting rod 6 and key-board 7; Safety switch 8 is housed on the key-board 7, and key-board 7 and buffer head 9 are through turning cylinder 10 settings that rotate, like this when motor 4 drives control wheels 5 rotations; Through the interlock of connecting rod 6, be with key-board 7 to rotate, promptly the position of safety switch 8 can be moved; Moreover, buffer head 9 can be arranged on the support 3 movably, and the mobile of buffer head 9 is that cam 1 drives; Moving of buffer head 9 also can be with key-board 7 to move like this, also realizes the moving of position of safety switch 8, and the position of safety switch 8 mobile makes on the rotation path that safety switch 8 can be in cam 1; The rotation path that perhaps breaks away from cam 1, when safety switch 8 is on the rotation path of cam 1, cam 1 bump that safety switch 8 may be rotated; Touch, make safety switch 8 send and stop escalator or moving sidewalk run signal.In the top rotation relation; Connecting rod 6 laterally arranges with the rotational axis line homogeneous phase of buffer head 9 with rotational axis line, the key-board 7 of key-board 7 with rotational axis line, the connecting rod 6 of control wheel 5; And parallel setting with the axial line of the output shaft of motor 4, guarantee to realize moving smoothly of key-board 7 and safety switch 8 like this.To specifically set forth the working process of anti-kickback device below, escalator or moving sidewalk are in first mode of operation corresponding to motor 4 when up, and escalator or moving sidewalk are in second mode of operation corresponding to motor 4 when descending.When motor 4 was in first mode of operation or second mode of operation, buffer head 9 all can be driven by cam 1 and move, and promptly buffer head 9 can be in first shift position or second shift position.First talk about escalator or moving sidewalk when descending, motor 4 is in second mode of operation, and motor 4 actions are being with control wheel 5 to turn over certain angle; Shown in Fig. 2 and 4 and 5, make the safety switch 8 on the key-board 7 break away from the rotation path of cams 1 through connecting rod 6, at this moment; Cam 1 is in the process that rotates counterclockwise along with axle drive shaft; Move even promote buffer head 9, no matter buffer head 9 is in first shift position still is second shift position, and then the safety switch on the key-board 78 keeps breaking away from the rotation path of cam 1; Shown in Fig. 2 and 4 and 5, this anti-kickback device can not have influence on the normally descending of escalator or moving sidewalk like this; When escalator or moving sidewalk were up, motor 4 was in first mode of operation, and motor 4 actions are being with control wheel 5 to rotate; As shown in figs. 1 and 3, make the safety switch 8 on the key-board 7 be on the rotation path of cam 1 through connecting rod 6, original cam 1 can strike safety switch 8 in the process that clockwise rotates along with axle drive shaft; But because cam 1 is when clockwise rotating, the salient branch of cam 1 profile promotes buffer head 9 and moves, and the mobile meeting of buffer head 9 is moved (in Fig. 1 with the safety switch on the key-board 78; Cam 1 is pushing away in the buffer head 9 retraction supports 3, is being with safety switch 8 away from cam), buffer head 9 is in second shift position; Make safety switch 8 break away from the rotation path of cam 1; Escalator or moving sidewalk are normal when up like this, and cam 1 can not strike safety switch 8, guarantee the normally up of escalator or moving sidewalk; In case the reverse of non-manipulation type takes place in actuating device; Being escalator or moving sidewalk is reversed into descendingly suddenly by up, and the axle drive shaft band cam 1 and rotated counterclockwise suddenly, and then the salient branch of cam 1 profile strikes safety switch 8 (this moment, buffer head 9 can't be moved by cam 1 bump; Buffer head 9 is in first shift position); Safety switch 8 sends signal out of service, and escalator or moving sidewalk in time stop, and guarantees passenger's safety.Be provided with elastic component 11 between buffer head 9 and the support 3, this elastic component 11 can provide buffer head 9 elastic-restoring forces, makes this buffer head 9 return back to first shift position from second shift position.Cam 1 is in rotation process like this, if the projection of profile strikes buffer head 9, buffer head 9 is pushed and moves to second shift position; But; After the projection of cam 1 profile left buffer head 9, under the elastic-restoring force effect of elastic component 11, buffer head 9 can return back to first shift position; Be in the safety switch on the key-board 78 on the rotation path of cam 1; In case guarantee escalator or moving sidewalk up reverse takes place suddenly, then the salient branch of cam 1 profile strikes safety switch 8, in time stops the operation of escalator or moving sidewalk.
can move after by cam 1 bump in order to guarantee safety switch 8 reliably, promptly send signal out of service, and key-board 7 is provided with limiting stopper 12; When escalator or moving sidewalk are up; Through motor 4 actions, make that the limiting stopper 12 on the key-board 7 is inconsistent with support 3, when the safety switch 8 on this key-board 7 is touched by cam 1 bump like this; Can move by disable switch plate 7, avoid possible move of key-board 7 through connecting rod 6.
are in order to guide moving of buffer head 9; Offer the pilot hole 14 that extends along the moving direction of buffer head 9 on the support 3; Buffer head 9 and key-board 7 turning cylinder 10 that is provided with that rotates is through in the pilot hole 14, and pilot hole 14 moves through the orientation of the mobile realization buffer head 9 of guiding turning cylinder 10.
are in Fig. 1 and 2; The projection of cam 1 profile is provided with widens part 13; Increase the impact area of cam 1 collision buffering head 9 or safety switch 8, guarantee that cam 1 can stably promote buffer head 9 and move, or touch safety switch 8 and send signal out of service.
to sum up, the anti-kickback device on this escalator or the moving sidewalk is realized up anti-reversing function through physical construction and safety switch, this anti-kickback device cost is low, stable and reliable operation.
Claims (3)
1. the anti-kickback device of escalator or moving sidewalk; It is characterized in that: the support on the truss that comprise the cam that is fixedly installed on the axle drive shaft that is used to drive said escalator or moving sidewalk operation, is arranged on said escalator or moving sidewalk, be arranged on motor on the said support, be arranged on control wheel, an end on the output shaft of said motor rotate the connecting rod that is arranged on the said control wheel, with the other end of said connecting rod rotate the key-board that is provided with, be arranged on the said key-board and can be touched by the projection of said camb contour and send the safety switch that stops said escalator or moving sidewalk run signal then, can be arranged on movably on the said support and can be promoted the buffer head that moves by the projection of said camb contour; The setting that rotates of said buffer head and said key-board; The rotational axis line of said rotation setting all parallels setting with the axial line of the output shaft of said motor; Said motor has first mode of operation and second mode of operation; Said buffer head has first shift position and second shift position; When said motor was in first mode of operation and said buffer head and is in first shift position, the safety switch on the said key-board was on the rotation path of said cam; When said motor was in first mode of operation and said buffer head and is in second shift position, the safety switch on the said key-board broke away from the rotation path of said cam; When said motor was in second mode of operation and said buffer head and is in first shift position or second shift position, the safety switch on the said key-board broke away from the rotation path of said cam; Being provided with between said buffer head and the said support to provide this buffer head elastic-restoring force to make this buffer head return back to the elastic component of first shift position from second shift position.
2. the anti-kickback device of escalator according to claim 1 or moving sidewalk is characterized in that: said key-board is provided with forbids the limiting stopper that this key-board moves in the time of can making that the safety switch on this key-board is touched by said cam with said support is inconsistent.
3. the anti-kickback device of escalator according to claim 1 or moving sidewalk; It is characterized in that: offer the pilot hole that extends along the moving direction of said buffer head on the said support, the rotate turning cylinder of setting of said buffer head and said key-board is through in the said pilot hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110384452 CN102398845B (en) | 2011-11-28 | 2011-11-28 | Anti-reversion device for escalator or moving sidewalk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110384452 CN102398845B (en) | 2011-11-28 | 2011-11-28 | Anti-reversion device for escalator or moving sidewalk |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102398845A true CN102398845A (en) | 2012-04-04 |
| CN102398845B CN102398845B (en) | 2013-09-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110384452 Expired - Fee Related CN102398845B (en) | 2011-11-28 | 2011-11-28 | Anti-reversion device for escalator or moving sidewalk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102398845B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015070462A1 (en) * | 2013-11-18 | 2015-05-21 | Otis Elevator Company | Brake for use in passenger conveyor system |
| CN104817008A (en) * | 2015-03-26 | 2015-08-05 | 欧俊 | Load-bearing detection method and device for detecting reversal protection of variable-frequency escalator or moving walk |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0873170A (en) * | 1994-09-01 | 1996-03-19 | Mitsubishi Denki Bill Techno Service Kk | Safety device for escalator |
| CN201193177Y (en) * | 2007-10-31 | 2009-02-11 | 苏州新达电扶梯部件有限公司 | Mechanical type anti-reverse safety device for moving staircase or automatic moving walkway |
| CN201777769U (en) * | 2010-08-23 | 2011-03-30 | 浙江凌志电梯有限公司 | Non-manipulation anti-reverse rotation protection device for escalator |
| CN202321928U (en) * | 2011-11-28 | 2012-07-11 | 江南嘉捷电梯股份有限公司 | Reversion-resistant device for escalator or moving pavement |
-
2011
- 2011-11-28 CN CN 201110384452 patent/CN102398845B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0873170A (en) * | 1994-09-01 | 1996-03-19 | Mitsubishi Denki Bill Techno Service Kk | Safety device for escalator |
| CN201193177Y (en) * | 2007-10-31 | 2009-02-11 | 苏州新达电扶梯部件有限公司 | Mechanical type anti-reverse safety device for moving staircase or automatic moving walkway |
| CN201777769U (en) * | 2010-08-23 | 2011-03-30 | 浙江凌志电梯有限公司 | Non-manipulation anti-reverse rotation protection device for escalator |
| CN202321928U (en) * | 2011-11-28 | 2012-07-11 | 江南嘉捷电梯股份有限公司 | Reversion-resistant device for escalator or moving pavement |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015070462A1 (en) * | 2013-11-18 | 2015-05-21 | Otis Elevator Company | Brake for use in passenger conveyor system |
| CN105745170A (en) * | 2013-11-18 | 2016-07-06 | 奥的斯电梯公司 | Brake for use in passenger conveyor system |
| US9994428B2 (en) | 2013-11-18 | 2018-06-12 | Otis Elevator Company | Brake for use in passenger conveyor system |
| CN104817008A (en) * | 2015-03-26 | 2015-08-05 | 欧俊 | Load-bearing detection method and device for detecting reversal protection of variable-frequency escalator or moving walk |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102398845B (en) | 2013-09-04 |
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Effective date of registration: 20180423 Address after: 215122 Suzhou Industrial Park, Suzhou Province, the only new road, No. 28, Jiangsu Patentee after: Jiangnan Jiajie Lift Co., Ltd., Jiangsu Address before: 718 No. 215122 Jiangsu Province, Suzhou City Industrial Park Fengting Avenue Patentee before: SJEC Corporation |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20201128 |
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| CF01 | Termination of patent right due to non-payment of annual fee |