CN102398845B - Anti-reversion device for escalator or moving sidewalk - Google Patents
Anti-reversion device for escalator or moving sidewalk Download PDFInfo
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- CN102398845B CN102398845B CN 201110384452 CN201110384452A CN102398845B CN 102398845 B CN102398845 B CN 102398845B CN 201110384452 CN201110384452 CN 201110384452 CN 201110384452 A CN201110384452 A CN 201110384452A CN 102398845 B CN102398845 B CN 102398845B
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- Prior art keywords
- escalator
- safety switch
- board
- cam
- buffer head
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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 bedriven 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 passengersis 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
When escalator or moving sidewalk are up, if change into suddenly descendingly, will cause very big threat to passenger's safety, so arranging of up anti-kickback device is extremely important.In the prior art, anti-kickback device generally is PLC control or employing contact switch, and the former is expensive, 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 by physical construction and safety switch on escalator or the moving sidewalk, this anti-kickback device cost is low, stable and reliable operation.
For achieving the above object, the technical solution used in the present invention is: the anti-kickback device of escalator or moving sidewalk, comprise the cam that is fixedly installed on on the axle drive shaft that drives the operation of described escalator or moving sidewalk, be arranged on the support on the truss of described escalator or moving sidewalk, be arranged on the motor on the described support, be arranged on the control wheel on the output shaft of described motor, the connecting rod that is arranged on the described control wheel is rotated in one end, the key-board that rotates and arrange with the other end of described connecting rod, be arranged on the described key-board and can be touched by the projection of described camb contour and send the safety switch that stops described escalator or moving sidewalk run signal then, can be arranged on movably on the described support and can be promoted mobile buffer head by the projection of described camb contour, the setting that rotates of described buffer head and described key-board, the rotational axis line of described rotation setting all parallels setting with the axial line of the output shaft of described motor, described motor has first mode of operation and second mode of operation, described buffer head has first shift position and second shift position, when described motor was in first mode of operation and described buffer head and is in first shift position, the safety switch on the described key-board was on the rotation path of described cam; When described motor was in first mode of operation and described buffer head and is in second shift position, the safety switch on the described key-board broke away from the rotation path of described cam; When described motor was in second mode of operation and described buffer head and is in first shift position or second shift position, the safety switch on the described key-board broke away from the rotation path of described cam; Being provided with between described buffer head and the described 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, described key-board is provided with and 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 described cam with described support is inconsistent.
Preferably, offer the pilot hole that extends along the moving direction of described buffer head on the described support, the rotate turning cylinder of setting of described buffer head and described key-board is through in the described pilot hole.
Because the utilization of technique scheme, the present invention compared with prior art has following advantage: when escalator or moving sidewalk are descending, motor is 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 by 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, 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 are up, motor is in first mode of operation, 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, the movement of buffer head can be moved with the safety switch on the key-board, buffer head is in second shift position, make safety switch break away from the rotation path of cam, guarantee 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 by physical construction and safety switch, and this anti-kickback device cost is low, stable and reliable operation.
Description of drawings
Accompanying drawing 1 is 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 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;
Attached Figure 4 and 5 are 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
Further set forth structure of the present invention below in conjunction with accompanying drawing.
Shown in Fig. 1-5, the anti-kickback device of escalator or moving sidewalk, be used for preventing the up reverse of escalator or moving sidewalk, and do 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, as illustrated in fig. 1 and 2, cam 1 can pass through bolt, spring washer, flat gasket is fixed on the end face of axle drive shaft, this axle drive shaft is the output shaft of drive motor, be used for driving 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, as illustrated in fig. 1 and 2, support 3 is fixedly installed on the truss 2 of cam 1 adjacent position by the cooperation of bolts and nuts, motor 4 is contained on the support 3, motor 4 is selected torque motor for use, the output shaft of motor 4 is provided with control wheel 5, driving control wheel 5 by motor 4 like this rotates, one 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, key-board 7 and buffer head 9 are by turning cylinder 10 setting that rotates, like this when motor 4 drives control wheel 5 rotations, interlock by connecting rod 6, be with key-board 7 to rotate, the position that is safety switch 8 can be moved, moreover, buffer head 9 can be arranged on the support 3 movably, the movement of buffer head 9 is that cam 1 drives, the movement of buffer head 9 also can be with key-board 7 to move like this, also realize the movement of the position of safety switch 8, the movement of the position of safety switch 8 makes safety switch 8 can be on the rotation path of 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 touches, and makes safety switch 8 send and stops escalator or moving sidewalk run signal.In the top rotation relation, connecting rod 6 be arranged in parallel 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 the smooth movement 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 mobile by cam 1, and namely 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, 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 by connecting rod 6, at this moment, cam 1 is in the process that rotates counterclockwise along with axle drive shaft, even promoting buffer head 9 moves, no matter buffer head 9 is in first shift position still is second shift position, then the safety switch on the key-board 78 keeps breaking away from the rotation path of cam 1, and 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 are up, motor 4 is in first mode of operation, 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 by 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, the movement of buffer head 9 can be moved (in Fig. 1 with the safety switch 8 on the key-board 7, cam 1 is pushing away in the buffer head 9 retraction supports 3, be 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, 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, be escalator or moving sidewalk by up be reversed into suddenly descending, the axle drive shaft band cam 1 and is rotated counterclockwise suddenly, then the salient branch of cam 1 profile strike safety switch 8(this moment buffer head 9 can't be mobile by cam 1 bump, buffer head 9 is in first shift position), safety switch 8 sends signal out of service, escalator or moving sidewalk in time stop, and guarantee 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 leaves buffer head 9, under the elastic-restoring force effect of elastic component 11, buffer head 9 can return back to first shift position, be on the rotation path of cam 1 with the safety switch 8 on the key-board 7, up reverse takes place suddenly in case guarantee escalator or moving sidewalk, then the salient branch of cam 1 profile strikes safety switch 8, in time stops the operation of escalator or moving sidewalk.
In order to guarantee that safety switch 8 can move reliably after by cam 1 bump, namely send signal out of service, key-board 7 is provided with limiting stopper 12, when escalator or moving sidewalk are up, by 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 key-board 7 by the possible movement of connecting rod 6.
In order to guide the movement 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 arranges that rotates is through in the pilot hole 14, and pilot hole 14 moves by the mobile orientation of buffer head 9 that realizes of guiding turning cylinder 10.
In Fig. 1 and 2, the projection of cam 1 profile is provided with widens part 13, increases the impact area of cam 1 collision buffering head 9 or safety switch 8, guarantees that cam 1 can stably promote buffer head 9 and move, or touches 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 by physical construction and safety switch, and 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: comprise the cam that is fixedly installed on on the axle drive shaft that drives the operation of described escalator or moving sidewalk, be arranged on the support on the truss of described escalator or moving sidewalk, be arranged on the motor on the described support, be arranged on the control wheel on the output shaft of described motor, the connecting rod that is arranged on the described control wheel is rotated in one end, the key-board that rotates and arrange with the other end of described connecting rod, be arranged on the described key-board and can be touched by the projection of described camb contour and send the safety switch that stops described escalator or moving sidewalk run signal then, can be arranged on movably on the described support and can be promoted mobile buffer head by the projection of described camb contour, the setting that rotates of described buffer head and described key-board, the rotational axis line of described rotation setting all parallels setting with the axial line of the output shaft of described motor, described motor has first mode of operation and second mode of operation, described buffer head has first shift position and second shift position, when described motor was in first mode of operation and described buffer head and is in first shift position, the safety switch on the described key-board was on the rotation path of described cam; When described motor was in first mode of operation and described buffer head and is in second shift position, the safety switch on the described key-board broke away from the rotation path of described cam; When described motor was in second mode of operation and described buffer head and is in first shift position or second shift position, the safety switch on the described key-board broke away from the rotation path of described cam; Being provided with between described buffer head and the described 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: described 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 described cam with described 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 described buffer head on the described support, the rotate turning cylinder of setting of described buffer head and described key-board is through in the described 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 CN102398845A (en) | 2012-04-04 |
| CN102398845B true CN102398845B (en) | 2013-09-04 |
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| 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 |
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| Country | Link |
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| CN (1) | CN102398845B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105745170B (en) * | 2013-11-18 | 2018-07-03 | 奥的斯电梯公司 | For the brake of passenger conveyor system |
| CN104817008B (en) * | 2015-03-26 | 2018-07-31 | 河南省特种设备安全检测研究院 | A kind of method and apparatus that carrying detects frequency-variable staircase and pavement reversal protection |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (1)
| 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 |
-
2011
- 2011-11-28 CN CN 201110384452 patent/CN102398845B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平8-73170A 1996.03.19 |
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| CN102398845A (en) | 2012-04-04 |
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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 |