CN202321930U

CN202321930U - Ascending anti-reversal device for escalator or moving sidewalk

Info

Publication number: CN202321930U
Application number: CN201120481554XU
Authority: CN
Inventors: 高静丹; 阮建华; 庞骋; 张超
Original assignee: SJEC Corp
Current assignee: SJEC Corp
Priority date: 2011-11-28
Filing date: 2011-11-28
Publication date: 2012-07-11
Anticipated expiration: 2021-11-28

Abstract

The utility model discloses an ascending anti-reversal device for an escalator or a moving sidewalk. When the escalator or the moving sidewalk is ascending, a safety switch on a contact is enabled to be in the rotating path of a switch rod. When a turnplate is rotates along with a driving shaft during an ascending, although a relative concavo-convex contour on the turnplate can strike the switch rod and enable the switch rod to rotate, the switch rod rotates toward a direction far from the safety switch, therefore the safety switch cannot be struck by the switch rod, and normal ascending of the escalator or the moving sidewalk is guaranteed. Once unintentional reversal of a driving device occurs, that is, the ascending of the escalator or the moving sidewalk suddenly reverses into a descending, the driving shaft rotates along with the turnplate, and enables the switch rod which is struck by the relative concavo-convex contour on the turnplate to rotate toward a direction of the safety switch, the safety switch is struck and sends out an operation stopping signal, the escalator or the moving sidewalk stops in time, and safety of the passengers is guaranteed. According to the ascending anti-reversal device for the escalator or the moving sidewalk, ascending anti-reversal is achieved through a mechanical structure and the safety switch. The ascending anti-reversal device has the advantages of being low in cost, and stable and reliable in operation.

Description

The up anti-kickback device of escalator or moving sidewalk

Technical field

the utility model relates to the up 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 the utility model provides the up anti-kickback device of realizing through physical construction and safety switch on escalator or the moving sidewalk, and this up anti-kickback device cost is low, stable and reliable operation.

are for achieving the above object; The technical scheme that the utility model adopts is: the up anti-kickback device of escalator or moving sidewalk; Thereby comprise be fixedly installed on the axle drive shaft that is used to drive said escalator or moving sidewalk operation and along the circumferential direction profile phase to the rotating disk of concavo-convex setting, can be arranged on the truss of said escalator or moving sidewalk rotationally and the switch rod that can be rotated by concavo-convex relatively said profile bump, be arranged on said escalator or moving sidewalk truss on and have the contact that can stretch electromagnet, be fixedly installed on the said contact and the side that is positioned at said switch rod can be touched by this switch rod and sent the safety switch that stops said escalator or moving sidewalk run signal then; Said contact has elongation state and contraction state; When said contact was in one of them state of elongation state and contraction state, the safety switch on the said contact was on the rotation path of said switch rod; When said contact was in the another one state, said safety switch broke away from the rotation path of said switch rod.

preferably, said up anti-kickback device also comprises can provide said switch rod elastic-restoring force to make this switch rod at the elastic component that is rotated the back return by bump.

further preferably; Said truss is provided with support; Said support is provided with the pair of adjustment part that can move, said pair of adjustment part respectively and be provided with the lockout mechanism that is used to locate this regulating part between the said support, said switch rod can be arranged on the said support rotationally; Be set with attaching parts on the said switch rod; Said attaching parts is between said pair of adjustment part, and said elastic component has a pair of, and the two ends of one of them said elastic component are pressed on respectively on the side of a said regulating part and said attaching parts; The two ends of the said elastic component of another one are pressed on respectively on the opposite side of said regulating part of another one and said attaching parts, and the moving direction of said regulating part extends along the length direction of said elastic component.

further preferably; Said pair of adjustment part, said attaching parts all offer perforation on corresponding position; Passed screw rod in the perforation of said pair of adjustment part, said attaching parts, said elastic component adopts spring, and a pair of said spring all is set on the said screw rod; And lay respectively between said pair of adjustment part and the said attaching parts, said screw rod stretches out on the position of said a pair of attaching parts and is combined with captive nut.

further preferably, said lockout mechanism comprises the tapped bore that is opened on the said support, be opened on the said regulating part and the slide opening that extends along its moving direction, can pass said slide opening and screw then in the said tapped bore so that said regulating part is pressed on the screw on the said support.

preferably, an end of said switch rod is equipped with the plastic jacket that is used for by said concavo-convex relatively profile bump.

preferably, the circular, circumferential profile of said rotating disk carrying out according to center of turn the symmetry the position on be recessed to form said concavo-convex relatively profile.

are because the utilization of technique scheme; The utility model compared with prior art has advantage: when escalator or moving sidewalk are descending; Be in one of them state of elongation state and contraction state corresponding to contact, make the safety switch on the contact break away from the rotation path of switch rod, when rotating disk is along with drive shaft turns like this; Though profile meeting impact switch concavo-convex relatively on the rotating disk is excellent; But safety switch keeps breaking away from the rotation path of switch rod, makes safety switch can not struck by the switch rod, and 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, the contact on this moment electromagnet was in the another one state of elongation state and contraction state, makes that the safety switch on the contact is on the excellent rotation path of switch; When rotating disk is along with drive shaft turns when up,, make the switch rod rotate though concavo-convex relatively profile is understood the impact switch rod on the rotating disk; But the switch rod is to rotate towards the direction away from safety switch, so safety switch can not struck by the switch rod, guarantees the normally up of escalator or moving sidewalk; In case the reverse of non-manipulation type takes place actuating device, promptly escalator or moving sidewalk are reversed into descendingly suddenly by up, and the axle drive shaft band the rotation of rotating disk; Make and rotated towards safety switch by the switch rod relative to concavo-convex profile bump on the rotating disk; The bump safety switch after safety switch is touched, sends signal out of service; Escalator or moving sidewalk in time stop, and guarantee passenger's safety.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.

Description of drawings

Accompanying drawing 1 is for the master of the utility model looks scheme drawing, and wherein escalator or moving sidewalk are descending, and safety switch breaks away from the rotation path of switch rod;

Accompanying drawing 2 is for the master of the utility model looks scheme drawing, and wherein escalator or moving sidewalk are up, and safety switch is on the rotation path of switch rod;

Accompanying drawing 3 is the schematic side view of the utility model;

accompanying drawing 4 is the schematic top plan view of the utility model.

The specific embodiment

The structure of the utility model is further set forth in below in conjunction with accompanying drawing.

are referring to shown in Fig. 1-4; The up 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 up anti-kickback device comprises rotating disk 1, switch rod 2, electromagnet 5, safety switch 8, elastic component 11; Rotating disk 1 is fixedly installed on the axle drive shaft, and this axle drive shaft is the output shaft of drive motor, is used to drive the operation of escalator or moving sidewalk; Escalator or moving sidewalk are when upstream or downstream like this, and rotating disk 1 meeting is carried out cw along with axle drive shaft or rotated counterclockwise.On circumferential direction; The profile phase of rotating disk 1 is to concavo-convex setting, and the concavo-convex relatively here meaning refers to: one, the outline portion of rotating disk 1 caves in, and then part is exactly protruding with respect to this recessed outline portion in addition; As in Fig. 1 and 2; The circular, circumferential profile of rotating disk 1 is recessed to form concavo-convex relatively profile on the position of carrying out symmetry according to center of turn, the outline portion of depression is considered to recessed here, and what other circular outline portions were recessed relatively then is considered to protruding; Two, the outline portion of rotating disk is protruding, then in addition part is exactly recessed with respect to this protruding outline portion, and like cam, the profile of cam also is considered to concavo-convex relatively setting here; Three, the profile of rotating disk have recessed, be convexly equipped with and put, recessed position and protruding part are spaced along circumferential direction; Four, the profile of rotating disk itself does not have concavo-convex setting; Like round turntable; But be eccentrically set on the axle drive shaft, here on the circumferential profile of rotating disk each point apart from axle drive shaft the axle center distance be different or incomplete same, distance is considered to protruding here; Distance is near to be considered to recessed, and being eccentrically set on circular sabot on the axle drive shaft like this, also to be considered to profile be concavo-convex relatively setting.Concavo-convex relatively profile can the impact switch rod along with drive shaft turns the time for rotating disk 1; Switch rod 2 is arranged on the truss 4 of escalator or moving sidewalk rotationally; In Fig. 1-4, be set with support 9 on the truss 4, switch rod 2 is arranged on the support 9 rotationally; Through profile impact switch rod 2 concavo-convex relatively on the rotating disk 1, driving switch rod 2 rotates.Electromagnet 5 is arranged on the truss 4 of escalator or moving sidewalk; Electromagnet 5 has the contact 6 that can stretch; Be set with safety switch 8 through adapter plate 7 on the contact 6, safety switch 8 is positioned at a side of switch rod 2, and switch rod 2 can strike safety switch 8 when a certain direction is rotated like this; Safety switch 8 sends signal out of service after clashing into, escalator or moving sidewalk are stopped; If switch rod 2 rotates in the opposite direction, then switch rod 2 can be away from safety switch 8, and safety switch 8 can be touched.Contact 6 on the electromagnet 5 has elongation state and contraction state, is applicable to the situation of escalator or moving sidewalk upstream or downstream.When escalator or moving sidewalk are descending; Be in one of them state of elongation state and contraction state corresponding to contact 6; Make the safety switch 8 on the contact 6 break away from the rotation path of switches rod 2, when rotating disk 1 clockwise rotates along with axle drive shaft when descending like this, though concavo-convex relatively profile can impact switch rod 2 on the rotating disk 1; Like Fig. 1; But safety switch 8 keeps breaking away from the rotation path of switch rod 2, makes safety switch 8 can not struck by switch rod 2, and 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, the contact 6 on this moment electromagnet 5 was in the another one state, makes that the safety switch 8 on the contact 6 is on the rotation path of switch rod 2; When rotating disk 1 rotates counterclockwise along with axle drive shaft when up, as shown in Figure 2, though concavo-convex relatively profile can impact switch rod 2 on the rotating disk 1; Safety switch 8 make switch rod 2 rotate, but switch rod 2 is to rotate towards the direction away from safety switch 8, so can not struck by switch rod 2; Guarantee the normally up of escalator or moving sidewalk, in case the reverse of non-manipulation type takes place in actuating device, promptly escalator or moving sidewalk by up be reversed into suddenly descending; The axle drive shaft band rotating disk 1 and is clockwise rotated suddenly, and then concavo-convex relatively profile is understood impact switch rod 2 on the rotating disk 1, makes switch rod 2 rotate towards safety switch 8; Bump safety switch 8 after safety switch 8 is touched, sends signal out of service; Escalator or moving sidewalk in time stop, and guarantee passenger's safety.Elastic component 11 is used to provide switch rod 2 elastic-restoring forces to make switch rod 2 rotated the back return by bump; Up reverse takes place suddenly in case guarantee escalator or moving sidewalk; After then switch rod 2 is struck by the profile of rotating disk 1; Can in time strike safety switch 8, in time stop the operation of escalator or moving sidewalk.In order to reduce 2 o'clock sound of rotating disk 1 impact switch rod, an end of switch rod 2 is equipped with plastic jacket 3, is clashed into by the concavo-convex relatively profile of rotating disk 1 through plastic jacket 3.

are in Fig. 1-4; The support 9 that is arranged on the truss is provided with the pair of adjustment part 10 that can move; This regulating part 10 is used to regulate the length of elastic component 11; Promptly regulate the elastic force of elastic component 11, elastic component 11 adopts spring, and the moving direction of regulating part 10 extends along the length direction of elastic component 11.Pair of adjustment part 10 respectively and be provided with the lockout mechanism that is used to locate this regulating part 10 between the support 9, this lockout mechanism comprises the tapped bore that is opened on the support 9, be opened on the regulating part 10 and the slide opening that extends along its moving direction, can pass slide opening and screw then in the tapped bore so that regulating part 10 is pressed on the screw on the support 9.Be set with attaching parts 14 on the switch rod 2; Attaching parts 14 is between pair of adjustment part 10, and pair of adjustment part 10, attaching parts 14 all offer perforation on corresponding position, has passed screw rod 12 in the perforation of pair of adjustment part 10, attaching parts 14; Elastic component 11 has a pair of; Elastic component 11 adopts spring, and pair of resilient members 11 all is set on the screw rod 12, and lays respectively between pair of adjustment part 10 and the attaching parts 14; Specifically; The two ends of one of them elastic component 11 are pressed on respectively on the side of a regulating part 10 and attaching parts 14, and the two ends of another one elastic component 11 are pressed on respectively on the opposite side of another one regulating part 10 and attaching parts 14, and screw rod 12 stretches out on the position of pair of adjustment part 10 and is combined with captive nut 13.Through moving the nut 13 on regulating part 10 and the mobile screw 12, realize the length adjustment of elastic component 11.After switch rod 2 was rotated by cw or rotating disk 1 bump that rotates counterclockwise, through the attaching parts 14 on the switch rod 2, under the elastic-restoring force effect of elastic component 11, switch rod 2 rotated returns.

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

1. the up anti-kickback device of escalator or moving sidewalk; It is characterized in that: thus comprise be fixedly installed on the axle drive shaft that is used to drive said escalator or moving sidewalk operation and along the circumferential direction profile phase to the rotating disk of concavo-convex setting, can be arranged on the truss of said escalator or moving sidewalk rotationally and the switch rod that can be rotated by concavo-convex relatively said profile bump, be arranged on said escalator or moving sidewalk truss on and have the contact that can stretch electromagnet, be fixedly installed on the said contact and the side that is positioned at said switch rod can be touched by this switch rod and sent the safety switch that stops said escalator or moving sidewalk run signal then; Said contact has elongation state and contraction state; When said contact was in one of them state of elongation state and contraction state, the safety switch on the said contact was on the rotation path of said switch rod; When said contact was in the another one state, said safety switch broke away from the rotation path of said switch rod.

2. the up anti-kickback device of escalator according to claim 1 or moving sidewalk is characterized in that: said up anti-kickback device also comprises can provide said switch rod elastic-restoring force to make this switch rod at the elastic component that is rotated the back return by bump.

3. the up anti-kickback device of escalator according to claim 2 or moving sidewalk; It is characterized in that: said truss is provided with support; Said support is provided with the pair of adjustment part that can move; Said pair of adjustment part respectively and be provided with the lockout mechanism that is used to locate this regulating part between the said support; Said switch rod can be arranged on the said support rotationally, is set with attaching parts on the said switch rod, and said attaching parts is between said pair of adjustment part; Said elastic component has a pair of; The two ends of one of them said elastic component are pressed on respectively on the side of a said regulating part and said attaching parts, and the two ends of the said elastic component of another one are pressed on respectively on the opposite side of said regulating part of another one and said attaching parts, and the moving direction of said regulating part extends along the length direction of said elastic component.

4. the up anti-kickback device of escalator according to claim 3 or moving sidewalk; It is characterized in that: said pair of adjustment part, said attaching parts all offer perforation on corresponding position; Passed screw rod in the perforation of said pair of adjustment part, said attaching parts; Said elastic component adopts spring; A pair of said spring all is set on the said screw rod, and lays respectively between said pair of adjustment part and the said attaching parts, and said screw rod stretches out on the position of said a pair of attaching parts and is combined with captive nut.

5. the up anti-kickback device of escalator according to claim 3 or moving sidewalk is characterized in that: said lockout mechanism comprises the tapped bore that is opened on the said support, be opened on the said regulating part and the slide opening that extends along its moving direction, can pass said slide opening and screw then in the said tapped bore so that said regulating part is pressed on the screw on the said support.

6. the up anti-kickback device of escalator according to claim 1 or moving sidewalk is characterized in that: an end of said switch rod is equipped with the plastic jacket that is used for by said concavo-convex relatively profile bump.

7. the up anti-kickback device of escalator according to claim 1 or moving sidewalk is characterized in that: the circular, circumferential profile of said rotating disk is recessed to form said concavo-convex relatively profile on the position of carrying out symmetry according to center of turn.