CN202379553U - Device for preventing accidental moving of elevator car - Google Patents
Device for preventing accidental moving of elevator car Download PDFInfo
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- CN202379553U CN202379553U CN2011205460094U CN201120546009U CN202379553U CN 202379553 U CN202379553 U CN 202379553U CN 2011205460094 U CN2011205460094 U CN 2011205460094U CN 201120546009 U CN201120546009 U CN 201120546009U CN 202379553 U CN202379553 U CN 202379553U
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- turning block
- elevator
- lift car
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Abstract
The utility model discloses a device for preventing accidental moving of an elevator car. The device comprises a rack, a rope wheel, a rope wheel shaft, a monitoring mechanism, a trigger assembly and an elevator brake device, wherein the monitoring mechanism comprises an index plate, an action electromagnet, a rotating block and an active dialing pin mechanism, wherein the index plate is fixedly arranged at the extended end of the rope wheel shaft, and the index plate is provided with a plurality of recesses spaced along the circumferential direction at intervals, the action electromagnet is fixedly arranged on the rack, the rotating block is arranged on the rack in a rotating way, the active dialing pin mechanism is fixedly arranged on the rotating block, and a dialing pin of the active dialing pin mechanism is located in the recess of the index plate when the action electromagnet is in the fail state; the trigger assembly is connected with the elevator brake device; the rotating block is provided with a touch structure for touching the trigger assembly to act after the rotating block rotates at a certain angle. The device for preventing accidental moving of the elevator car can detect the low-speed up or down movement of the elevator car and enables the elevator to decelerate and brake.
Description
Technical field
The utility model relates to lift car safety protection technique field, specifically is a kind of lift car accidental shifting device that prevents.
Background technology
At present, the elevator operative installations all is the movement device when being used to detect the lift car hypervelocity, is precarious position when it can only detect elevator overspeed and drives the brake device for elevator action and make the deceleration of elevator stop; But the elevator low speed for when dangerous take place slowly moves, and the elevator governor of prior art is can't be detected, thus also make the deceleration of elevator stop with regard to not producing corresponding action, thus initiation potential; Such as when the Elevator landing and under the elevator cab door situation about opening; The caused lift cars of some other X factor such as flat bed quiescence that lift car was done operation out of control or was not enough to keep car because of the elevator main traction because of certain electric elements fault this moment are moving up or down slowly; In such cases; The speed that lift car moves is very low, does not reach the hypervelocity responsiveness as yet, is dangerous speed so elevator governor in the past can't detect the speed of elevator this moment; Therefore corresponding actions mechanism can not move yet on the velocity limiter; Therefore can't the action indication be provided to braking element, braking element just can not go to let the car stop that slowly moves yet yet, and this moment is if just have the passenger fixedly to be between elevator cab door and the elevator door; The lift car mobile injury that might cause shearing to the passenger up or down can cause passenger's death when serious.
The utility model content
The technical matters that the utility model will solve is; Overcome the defective of above prior art; Provide a kind of and can detect the lift car failover and make the deceleration of elevator stop during up or down mobile of low speed, thus ensure elevator safety operation prevent lift car accidental shifting device.
The technical solution of the utility model is; Provide a kind of have a following structure prevent lift car accidental shifting device: it comprises frame, rope sheave, sheave shaft, mechanism for monitoring, triggering assembly and brake device for elevator; Described rope sheave is fixedly mounted on the sheave shaft, and bearing installation is passed through on frame in the two ends of said sheave shaft; Described mechanism for monitoring comprises calibrated disc, operating magnet, turning block and movable finger mechanism; Described calibrated disc is fixedly mounted on the external part of sheave shaft; And calibrated disc is provided with a plurality of along its circumferencial direction interval well-distributed draw-in groove; Said operating magnet is fixedly mounted on the frame, and said turning block is installed in rotation on the frame, and turning block and sheave shaft coaxial line; Said movable finger mechanism is fixedly mounted on the turning block, and the finger of movable finger mechanism is in the draw-in groove of calibrated disc under the state of operating magnet dead electricity; Described triggering assembly is installed on the frame, and the triggering assembly is connected with brake device for elevator; Said turning block is provided with and after turning block turns an angle, touches the touch structure that triggers the assembly action.
After adopting above structure; The utility model prevents lift car accidental shifting device compared with prior art; Have the following advantages: this prevents that lift car accidental shifting device is under the situation that Elevator landing and elevator cab door are opened; The operating magnet dead electricity of mechanism for monitoring, the free end of the finger of movable finger mechanism snaps in the draw-in groove of calibrated disc, if the caused lift cars of some other X factor such as flat bed quiescence that lift car is done operation out of control or is not enough to keep car because of the elevator main traction because of certain electric elements fault are slowly during up or down mobile; The calibrated disc of mechanism for monitoring slowly rotates together with rope sheave; The draw-in groove of calibrated disc drives finger rotates turning block, touches the touch structure that triggers the assembly action because turning block is provided with, after turning block turns an angle; Its touch structure touches and triggers the assembly action, triggers assembly and makes the brake device for elevator action and make lift car deceleration stop.Therefore this prevents that lift car accidental shifting device from can detect the lift car failover and makes the deceleration of elevator stop during up or down mobile of low speed, thereby ensures elevator safety operation.In addition this structure prevent the simple in structure of lift car accidental shifting device, productive costs is lower.
As preferably; Said movable finger mechanism comprises finger, finger seat, retracing spring and operating magnet, and described finger seat is captiveed joint with turning block, and described finger is slidingly fitted on the finger seat; Described retracing spring is enclosed within on the finger; And an end of retracing spring is resisted against on the finger seat, and its other end is resisted against on the free-ended limited step of finger, and finger connects a concentrating flux plate away from a free-ended end; And the madial wall of concentrating flux plate is near the magnetic pole of operating magnet, and the free end of said finger is positioned at the draw-in groove of calibrated disc under the retracing spring deployed condition.When elevator moves; The charged generation magnetic force of operating magnet makes the concentrating flux plate magnetization and the generation polarity identical with the operating magnet magnetic pole of movable finger mechanism; Concentrating flux plate drives the elastic force that finger outwards overcomes retracing spring under the promotion of magnetic force, make the free end of finger break away from the draw-in groove of calibrated disc, under the situation that Elevator landing and elevator cab door are opened; Operating magnet dead electricity, finger and the concentrating flux plate free end that makes finger that under the effect of retracing spring, resets is stuck in the draw-in groove of calibrated disc.
As preferably, said turning block is provided with and after turning block turns an angle, touches the touch structure that triggers the assembly action, is meant that said turning block is provided with two symmetrically arranged arc notch, and is provided with lug boss between two arc notch; Described triggering assembly comprises the triggering assembly seat of captiveing joint with frame; Be slidingly fitted in the ejector pin that triggers on the assembly seat; On the described ejector pin spring is installed, an end of said spring is resisted against on the inwall that triggers assembly seat, and the other end of spring is resisted against on the free-ended position-arresting disk of ejector pin; The free end of ejector pin was resisted against on the lug boss between two arc notch of turning block when spring was in compressive state, and the other end of said ejector pin is connected with brake device for elevator through brake cable.Under the situation that Elevator landing and elevator cab door are opened; The operating magnet dead electricity; Finger its free end under the effect of retracing spring of activity finger mechanism snaps in the draw-in groove of calibrated disc; If slowly during up or down mobile, calibrated disc slowly rotates together with rope sheave the caused lift cars of some other X factor such as flat bed quiescence that lift car was done operation out of control or was not enough to keep car because of the elevator main traction because of certain electric elements fault this moment, the draw-in groove driving finger of calibrated disc; Finger is rotated together with turning block; After turning block turned an angle, ejector pin its free end under the elastic force effect of spring fell in the arc notch of turning block, thereby the action of the brake device for elevator of the other end of ejector pin shake-up at this moment makes lift car deceleration stop.
As a kind of improvement, the free end of said ejector pin is installed a roller, and the free end of described roller and ejector pin is rotatably connected, and the lateral wall of roller is resisted against on the lug boss between two arc notch of turning block.Because the lateral wall of roller is resisted against on the lug boss between two arc notch of turning block; When turning block rotates; Turning block sidewall between turning block two arc notch and the free-ended roller of ejector pin are friction of rolling; Therefore make the free-ended action of ejector pin relatively sensitiveer, can touch the brake device for elevator action in time.
As preferably, described brake device for elevator is the steel wire braking that is arranged on the lift car steel rope, and said steel wire braking is connected through the outer end of brake cable with the ejector pin of triggering assembly.When its free end under the elastic force effect of ejector pin at spring fell in the arc notch of turning block, the other end of ejector pin drove the steel wire braking action through brake cable, thereby makes lift car deceleration stop.
As preferably, said turning block is provided with and after turning block turns an angle, touches the touch structure that triggers the assembly action, is meant that connecting one on the said turning block triggers plectrum, and the free end of said triggering plectrum is provided with bayonet socket; Said triggering assembly comprises the trigger switch of captiveing joint with frame, and the contact of said trigger switch is arranged on and triggers in the middle of the free-ended bayonet socket of plectrum, and the signal output part of trigger switch is electrically connected with the brake equipment of elevator through lead; Under the situation that Elevator landing and elevator cab door are opened; The operating magnet dead electricity of mechanism for monitoring; The finger of movable finger mechanism is under the effect of retracing spring, and the free end of finger snaps in the draw-in groove of calibrated disc, if the caused lift cars of some other X factor such as flat bed quiescence that lift car was done operation out of control or was not enough to keep car because of the elevator main traction because of certain electric elements fault this moment are slowly during up or down mobile; The calibrated disc of mechanism for monitoring slowly rotates together with rope sheave; The draw-in groove of calibrated disc drives finger, and finger is rotated together with turning block, and turning block rotating band movable contact is sent out plectrum and rotated; After the triggering plectrum turns an angle; The bayonet socket inwall that triggers plectrum is stirred trigger switch and is arranged on the contact that triggers in the middle of the plectrum bayonet socket, and the contact that is struck makes the trigger switch action, thereby the brake equipment action of trigger switch through lead control elevator makes the deceleration of elevator stop.
As preferably, described brake device for elevator comprises the electromagnetic brake that is arranged on the elevator traction main frame, and described electromagnetic brake is connected with trigger switch through lead.After the triggering plectrum of the monitored mechanism of contact of trigger switch was stirred, the trigger switch action made the electromagnetic brake action that is arranged on the elevator traction main frame that the elevator traction main frame is stopped operating, thereby makes lift car deceleration stop.
As preferably; Described brake device for elevator comprises steel wire braking and the electromechanical trigger mechanism that is arranged on the lift car steel rope; The trigger end of said electromechanical trigger mechanism is connected with steel wire braking through brake cable, and said electromechanical trigger mechanism is connected with trigger switch through lead.
As preferably; Described electromechanical trigger mechanism comprises fixed mount, draws pin, locating dowel pin and electromagnet; Described fixed mount is fixedly mounted on the steel wire braking, and the said pin that draws is slidingly fitted on the fixed mount, and draws the head of pin to be connected with steel wire braking through brake cable; Saidly draw pin to be provided with to make its first retracing spring that resets, and draw pin to be provided with annular spacing groove; Described locating dowel pin is slidingly fitted on the fixed mount; And locating dowel pin is provided with second retracing spring that locating dowel pin is resetted; Said electromagnet is installed on the fixed mount; Electromagnet is connected with trigger switch through lead, and the magnetic pole of electromagnet is near the top of locating dowel pin, the lower end of said locating dowel pin under the electromagnet "on" position and first retracing spring and second retracing spring be positioned at the annular spacing groove that draws pin when all being compressive state.After the triggering plectrum of the monitored mechanism of contact of trigger switch is stirred; Trigger switch moves, thereby makes the electromagnet dead electricity of electromechanical trigger mechanism, and locating dowel pin upwards resets under the effect of second retracing spring; When the annular spacing groove of pin is drawn in the disengaging of the lower end of locating dowel pin; Draw pin under the effect of first retracing spring, to reset, thereby the pulling brake cable makes the steel wire braking action, thereby make the lift car stop.
Description of drawings
Fig. 1 is the structural representation that the utility model prevents the embodiment one of lift car accidental shifting device.
Fig. 2 is that the utility model prevents the A portion structure for amplifying scheme drawing of lift car accidental shifting device in Fig. 1.
Fig. 3 is that the utility model prevents the C-C sectional structure scheme drawing of lift car accidental shifting device in Fig. 2.
Fig. 4 is that the utility model prevents the plan structure scheme drawing of lift car accidental shifting device in Fig. 2.
Fig. 5 is the structural representation that the utility model prevents the embodiment two of lift car accidental shifting device.
Fig. 6 is that the utility model prevents the B portion structure for amplifying scheme drawing of lift car accidental shifting device in Fig. 5.
Fig. 7 is that the utility model prevents the plan structure scheme drawing of lift car accidental shifting device in Fig. 6.
Fig. 8 is the structural representation that the utility model prevents the embodiment three of lift car accidental shifting device.
Fig. 9 is that the utility model prevents the D portion structure for amplifying scheme drawing of lift car accidental shifting device in Fig. 8.
As shown in the figure:
1, frame, 2, steel wire braking, 3, rope sheave, 4, sheave shaft, 5, bearing, 6, calibrated disc; 6.1, draw-in groove, 7, turning block, 7.1, arc notch, 7.2, lug boss, 8, movable finger mechanism, 8.1, the finger seat; 8.2, finger, 8.3, limited step, 8.4, retracing spring, 8.5, concentrating flux plate, 9, trigger assembly, 9.1, trigger assembly seat; 9.2, spring, 9.3, ejector pin, 9.4, roller, 9.5, position-arresting disk, 10, operating magnet, 11, trigger plectrum; 11.1, bayonet socket, 12, trigger switch, 12.1, contact, 13, brake cable, 14, the electromechanical trigger mechanism, 14.1, fixed mount; 14.2, electromagnet, 14.3, locating dowel pin, 14.4, second retracing spring, 14.5, draw pin, 14.6, first retracing spring, 14.7, annular spacing groove.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further detailed explanation.
Embodiment one:
Like Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4,
A kind of lift car accidental shifting device that prevents of the utility model; It comprises frame 1, rope sheave 3, sheave shaft 4, mechanism for monitoring, triggering assembly 9 and brake device for elevator; Described rope sheave 3 is fixedly mounted on the sheave shaft 4, and the two ends of said sheave shaft 4 are installed on the frame 1 through bearing 5; Described mechanism for monitoring comprises calibrated disc 6, operating magnet 10, turning block 7 and movable finger mechanism 8; Described calibrated disc 6 is fixedly mounted on the external part of sheave shaft 4; And calibrated disc 6 is provided with a plurality of along its circumferencial direction interval well-distributed draw-in groove 6.1; Said operating magnet 10 is fixedly mounted on the frame 1, and said turning block 7 is installed in rotation on the frame 1, and turning block 7 and sheave shaft 4 coaxial lines; Said movable finger mechanism 8 is fixedly mounted on the turning block 7, and the finger of movable finger mechanism 8 is under the state of operating magnet 10 dead electricity in the draw-in groove 6.1 of calibrated disc 6; Described triggering assembly 9 is installed on the frame 1, and triggering assembly 9 is connected with brake device for elevator; Said turning block 7 is provided with and after turning block 7 turns an angle, touches the touch structure that triggers assembly 9 actions.
The rotation distance that the certain angle that turning block 7 rotates can be converted rope sheave 3 pitch circles is 25mm; Also be that the miles of relative movement of steel rope under fricton-tight situation on the rope sheave 3 is 25mm; Also promptly work as operating magnet 10 under the dead electricity situation; Allow lift car to have 25mm miles of relative movement up or down at least, turning block 7 can not touch and trigger the assembly action in this 25 mm that move distance.
Said movable finger mechanism 8 comprises finger 8.2, finger seat 8.1, retracing spring 8.4 and operating magnet 10; Described finger seat 8.1 is captiveed joint with turning block 7; Described finger 8.2 is slidingly fitted on the finger seat 8.1, and described retracing spring 8.4 is enclosed within on the finger 8.2, and an end of retracing spring 8.4 is resisted against on the finger seat 8.1; Its other end is resisted against on the finger 8.2 free-ended limited steps 8.3; Finger 8.2 connects a concentrating flux plate 8.5 away from a free-ended end, and the madial wall of concentrating flux plate 8.5 is near the magnetic pole of operating magnet 10, and the free end of said finger 8.2 is positioned at the draw-in groove 6.1 of calibrated disc 6 under retracing spring 8.4 deployed conditions.When elevator cage operation; Operating magnet 10 charged generation magnetic force make concentrating flux plate 8.5 magnetization and the generation and the identical polarity of operating magnet 10 magnetic poles of movable finger mechanism 8; Concentrating flux plate 8.5 drives the elastic force that finger 8.2 outwards overcomes retracing spring 8.4 under the promotion of magnetic force; Make the draw-in groove 6.1 of the free end disengaging calibrated disc 6 of finger 8.2; Under the situation that Elevator landing and elevator cab door are opened, operating magnet 10 dead electricity, finger 8.2 and concentrating flux plate 8.5 free end that makes finger 8.2 that under the effect of retracing spring 8.4, resets is stuck in the draw-in groove 6.1 of calibrated disc 6.
Said turning block 7 is provided with and after turning block turns an angle, touches the touch structure that triggers assembly 9 actions, is meant that said turning block 7 is provided with two symmetrically arranged arc notch 7.1, and is provided with lug boss 7.2 between two arc notch 7.1; Described triggering assembly 9 comprises the triggering assembly seat 9.1 of captiveing joint with frame 1; Be slidingly fitted in the ejector pin 9.3 that triggers on the assembly seat 9.1; On the described ejector pin 9.3 spring 9.2 is installed; One end of said spring 9.2 is resisted against on the inwall that triggers assembly seat 9.1; The other end of spring 9.2 is resisted against on the ejector pin 9.3 free-ended position-arresting disks 9.5, and the free end of ejector pin 9.3 was resisted against on the lug boss 7.2 between two arc notch 7.1 of turning block 7 when spring 9.2 was in compressive state, and the other end of said ejector pin 9.3 is connected with brake device for elevator.
Under the situation that Elevator landing and elevator cab door are opened; Operating magnet 10 dead electricity of mechanism for monitoring; Finger 8.2 its free end under the effect of retracing spring 8.4 of activity finger mechanism 8 snaps in the draw-in groove 6.1 of calibrated disc 6; If the caused lift cars of some other X factor such as flat bed quiescence that lift car was done operation out of control or was not enough to keep car because of the elevator main traction because of certain electric elements fault this moment are slowly during up or down mobile; Calibrated disc 6 slowly rotates together with rope sheave 3, and the draw-in groove 6.1 of calibrated disc 6 drives finger 8.2, and finger 8.2 is rotated together with turning block 7; After turning block 7 turns an angle; Ejector pin 9.3 its free end under the elastic force effect of spring 9.2 falls in the arc notch 7.1 of turning block 7, and the rotation of the free end limit rotation piece 7 of ejector pin 9.3 also makes rope sheave 3 stop operating at this moment; Simultaneously, thus the other end of ejector pin 9.3 pulling brake cable makes the brake equipment action of elevator make lift car deceleration stop.
The free end of said ejector pin 9.3 is installed a roller 9.4, and described roller 9.4 is rotatably connected with the free end of ejector pin 9.3, and the lateral wall of roller 9.4 is resisted against on the lug boss 7.2 between two arc notch 7.1 of turning block 7.
Described brake device for elevator is the steel wire braking 2 that is arranged on the lift car steel rope, and said steel wire braking 2 is connected through the outer end of brake cable 13 with the ejector pin 9.3 that triggers assembly 9.This steel wire braking 2 is a prior art products, so the utility model is not done detailed elaboration.
Embodiment two:
Like Fig. 5, Fig. 6 and shown in Figure 7,
A kind of lift car accidental shifting device that prevents of the utility model; It comprises frame 1, rope sheave 3, sheave shaft 4, mechanism for monitoring, triggering assembly 9 and brake device for elevator; Described rope sheave 3 is fixedly mounted on the sheave shaft 4, and the two ends of said sheave shaft 4 are installed on the frame 1 through bearing 5; Described mechanism for monitoring comprises calibrated disc 6, operating magnet 10, turning block 7 and movable finger mechanism 8; Described calibrated disc 6 is fixedly mounted on the external part of sheave shaft 4; And calibrated disc 6 is provided with a plurality of along its circumferencial direction interval well-distributed draw-in groove 6.1; Said operating magnet 10 is fixedly mounted on the frame 1, and said turning block 7 is installed in rotation on the frame 1, and turning block 7 and sheave shaft 4 coaxial lines; Said movable finger mechanism 8 is fixedly mounted on the turning block 7, and the finger of movable finger mechanism 8 is under the state of operating magnet 10 dead electricity in the draw-in groove 6.1 of calibrated disc 6; Described triggering assembly 9 is installed on the frame 1, and triggering assembly 9 is connected with brake device for elevator; Said turning block 7 is provided with and after turning block 7 turns an angle, touches the touch structure that triggers assembly 9 actions.
Said movable finger mechanism 8 comprises finger 8.2, finger seat 8.1, retracing spring 8.4 and operating magnet 10; Described finger seat 8.1 is captiveed joint with turning block 7; Described finger 8.2 is slidingly fitted on the finger seat 8.1, and described retracing spring 8.4 is enclosed within on the finger 8.2, and an end of retracing spring 8.4 is resisted against on the finger seat 8.1; Its other end is resisted against on the finger 8.2 free-ended limited steps 8.3; Finger 8.2 connects a concentrating flux plate 8.5 away from a free-ended end, and the madial wall of concentrating flux plate 8.5 is near the magnetic pole of operating magnet 10, and the free end of said finger 8.2 is positioned at the draw-in groove 6.1 of calibrated disc 6 under retracing spring 8.4 deployed conditions.When elevator cage operation; Operating magnet 10 charged generation magnetic force make concentrating flux plate 8.5 magnetization and the generation and the identical polarity of operating magnet 10 magnetic poles of movable finger mechanism 8; Concentrating flux plate 8.5 drives the elastic force that finger 8.2 outwards overcomes retracing spring 8.4 under the promotion of magnetic force; Make the draw-in groove 6.1 of the free end disengaging calibrated disc 6 of finger 8.2; Under the situation that Elevator landing and elevator cab door are opened, operating magnet 10 dead electricity, finger 8.2 and concentrating flux plate 8.5 free end that makes finger 8.2 that under the effect of retracing spring 8.4, resets is stuck in the draw-in groove 6.1 of calibrated disc 6.
Said turning block 7 is provided with and after turning block turns an angle, touches the touch structure that triggers assembly 9 actions, is meant that connecting one on the said turning block 7 triggers plectrum 11, and the free end of said triggering plectrum 11 is provided with bayonet socket 11.1; Said triggering assembly 9 comprises the trigger switch 12 of captiveing joint with frame 1; The contact 12.1 of said trigger switch 12 is arranged on and triggers in the middle of the plectrum 11 free-ended bayonet sockets 11.1, and the signal output part of trigger switch 12 is electrically connected with the brake equipment of elevator through lead.Under the situation that Elevator landing and elevator cab door are opened; Operating magnet 10 dead electricity; The finger 8.2 of movable finger mechanism 8 is under the effect of retracing spring 8.4, and the free end of finger 8.2 snaps in the draw-in groove 6.1 of calibrated disc 6, if the caused lift cars of some other X factor such as flat bed quiescence that lift car was done operation out of control or was not enough to keep car because of the elevator main traction because of certain electric elements fault this moment are slowly during up or down mobile; Calibrated disc 6 slowly rotates together with rope sheave 3; The draw-in groove 6.1 of calibrated disc 6 drives fingers, and finger 8.2 is rotated together with turning block, and turning block 7 rotating band movable contacts are sent out plectrum 11 and rotated; After triggering plectrum 11 turns an angle; Bayonet socket 11.1 inwalls that trigger plectrum 11 are stirred trigger switch 12 and are arranged on the contact 12.1 that triggers in the middle of the plectrum bayonet socket, and the contact 12.1 of being touched makes trigger switch 12 actions, thereby the brake equipment action of trigger switch 12 through lead control elevator makes the deceleration of elevator stop.
Described brake device for elevator comprises the electromagnetic brake that is arranged on the elevator traction main frame, and described electromagnetic brake is connected with trigger switch 12 through lead.Its structure of electromagnetic brake and the technology that are arranged on the elevator traction main frame all are existing than proven technique, so the utility model does not elaborate.
Embodiment three:
Like Fig. 8 and shown in Figure 9; Described brake device for elevator comprises the steel wire braking 2 and electromechanical trigger mechanism 14 that is arranged on the lift car steel rope; The trigger end of said electromechanical trigger mechanism 14 is connected with steel wire braking 2 through brake cable 13, and said electromechanical trigger mechanism 14 is connected with trigger switch 12 through lead.
Described electromechanical trigger mechanism 14 comprises fixed mount 14.1, draws pin 14.5, locating dowel pin 14.3 and electromagnet 14.2; Described fixed mount 14.1 is fixedly mounted on the steel wire braking 2; The said pin 14.5 that draws is slidingly fitted on the fixed mount 14.1; And the head that draws pin 14.5 is connected with steel wire braking 2 through brake cable 13, saidly draws pin 14.5 to be provided with to make its first retracing spring 14.6 that resets, and draws pin 14.5 to be provided with annular spacing groove 14.7; Described locating dowel pin 14.3 is slidingly fitted on the fixed mount 14.1; And locating dowel pin 14.3 is provided with second retracing spring 14.4 that locating dowel pin 14.3 is resetted; Said electromagnet 14.2 is installed on the fixed mount 14.1; Electromagnet 14.2 is connected with trigger switch 12 through lead; And the magnetic pole of electromagnet 14.2 is near the top of locating dowel pin 14.3, the lower end of said locating dowel pin 14.3 under electromagnet 14.2 "on" positions and first retracing spring 14.6 and second retracing spring 14.4 be positioned at the annular spacing groove 14.7 that draws pin 14.5 when all being compressive state.Structure is identical among all the other structures and the embodiment two.
Like above-mentioned embodiment two and embodiment three; Said turning block 7 turns an angle; After also promptly turning an angle with turning block 7 bonded assemblys triggering plectrum 11; Bayonet socket 11.1 inwalls that trigger plectrum 11 touch the contact 12.1 of trigger switch 12, make trigger switch 12 actions, and the rotation distance that angle that therefore should 11 rotations of triggering plectrum also can be converted rope sheave 3 pitch circles is 25mm; Also be that the miles of relative movement of steel rope under fricton-tight situation on the rope sheave 3 is 25mm; Promptly work as operating magnet 10 under the dead electricity situation yet, allow lift car to have 25mm miles of relative movement up or down at least, bayonet socket 11.1 inwalls of the triggering plectrum 11 of turning block 7 can not touch trigger switch 12 actions in this 25 mm that move distance.
Above embodiment has only done more detailed explanatory note to the utility model claim; But can not be interpreted as the restriction to the claim protection domain, every various forms variation in the utility model claim protection domain all falls in the protection domain of the utility model.
Claims (9)
1. one kind prevents lift car accidental shifting device; It is characterized in that: it comprises frame (1), rope sheave (3), sheave shaft (4), mechanism for monitoring, triggering assembly (9) and brake device for elevator; Described rope sheave (3) is fixedly mounted on the sheave shaft (4), and the two ends of said sheave shaft (4) are installed on the frame (1) through bearing (5); Described mechanism for monitoring comprises calibrated disc (6), operating magnet (10), turning block (7) and movable finger mechanism (8); Described calibrated disc (6) is fixedly mounted on the external part of sheave shaft (4); And calibrated disc (6) is provided with a plurality of along its circumferencial direction interval well-distributed draw-in groove (6.1); Said operating magnet (10) is fixedly mounted on the frame (1); Said turning block (7) is installed in rotation on the frame (1); And turning block (7) and sheave shaft (4) coaxial line, said movable finger mechanism (8) is fixedly mounted on the turning block (7), and the finger of movable finger mechanism (8) is under the state of operating magnet (10) dead electricity in the draw-in groove (6.1) of calibrated disc (6); Described triggering assembly (9) is installed on the frame (1), and triggering assembly (9) is connected with brake device for elevator; Said turning block (7) is provided with and after turning block (7) turns an angle, touches the touch structure that triggers assembly (9) action.
2. the lift car accidental shifting device that prevents according to claim 1; It is characterized in that: said movable finger mechanism (8) comprises finger (8.2), finger seat (8.1), retracing spring (8.4) and operating magnet (10); Described finger seat (8.1) is captiveed joint with turning block (7); Described finger (8.2) is slidingly fitted on the finger seat (8.1); Described retracing spring (8.4) is enclosed within on the finger (8.2); And an end of retracing spring (8.4) is resisted against on the finger seat (8.1), and its other end is resisted against on the free-ended limited step of finger (8.2) (8.3), and finger (8.2) connects a concentrating flux plate (8.5) away from a free-ended end; And the madial wall of concentrating flux plate (8.5) is near the magnetic pole of operating magnet (10), and the free end of said finger (8.2) is positioned at the draw-in groove (6.1) of calibrated disc (6) under retracing spring (8.4) deployed condition.
3. the lift car accidental shifting device that prevents according to claim 1 and 2; It is characterized in that: said turning block (7) is provided with and after turning block (7) turns an angle, touches the touch structure that triggers assembly (9) action; Be meant that said turning block (7) is provided with two symmetrically arranged arc notch (7.1), and be provided with lug boss (7.2) between two arc notch (7.1); Described triggering assembly (9) comprises the triggering assembly seat (9.1) of captiveing joint with frame (1); Be slidingly fitted in the ejector pin (9.3) that triggers on the assembly seat (9.1); Spring (9.2) is installed on the described ejector pin (9.3); One end of said spring (9.2) is resisted against on the inwall that triggers assembly seat (9.1); The other end of spring (9.2) is resisted against on the free-ended position-arresting disk of ejector pin (9.3) (9.5), and the free end of spring (9.2) ejector pin (9.3) when being in compressive state is resisted against on the lug boss (7.2) between two arc notch (7.1) of turning block (7), and the other end brake device for elevator of said ejector pin (9.3) connects.
4. the lift car accidental shifting device that prevents according to claim 3; It is characterized in that: the free end of said ejector pin (9.3) is installed a roller (9.4); The free end of described roller (9.4) and ejector pin (9.3) is rotatably connected, and the lateral wall of roller (9.4) is resisted against on the lug boss (7.2) between two arc notch (7.1) of turning block (7).
5. the lift car accidental shifting device that prevents according to claim 3; It is characterized in that: described brake device for elevator is the steel wire braking (2) that is arranged on the lift car steel rope, and said steel wire braking (2) is connected through the outer end of brake cable (13) with the ejector pin (9.3) that triggers assembly (9).
6. the lift car accidental shifting device that prevents according to claim 1 and 2; It is characterized in that: said turning block (7) is provided with and after turning block turns an angle, touches the touch structure that triggers assembly (9) action; Be meant that said turning block (7) upward connects one and triggers plectrum (11), the free end of said triggering plectrum (11) is provided with bayonet socket (11.1); Said triggering assembly (9) comprises the trigger switch (12) of captiveing joint with frame (1); The contact (12.1) of said trigger switch (12) is arranged on and triggers in the middle of the free-ended bayonet socket of plectrum (11) (11.1), and the signal output part of trigger switch (12) is connected with brake device for elevator through lead.
7. the lift car accidental shifting device that prevents according to claim 6; It is characterized in that: described brake device for elevator comprises the electromagnetic brake (15) that is arranged on the elevator traction main frame, and described electromagnetic brake (15) is connected with trigger switch (12) through lead.
8. the lift car accidental shifting device that prevents according to claim 6; It is characterized in that: described brake device for elevator comprises steel wire braking (2) and the electromechanical trigger mechanism (14) that is arranged on the lift car steel rope; The trigger end of said electromechanical trigger mechanism (14) is connected with steel wire braking (2) through brake cable (13), and said electromechanical trigger mechanism (14) is connected with trigger switch (12) through lead.
9. the lift car accidental shifting device that prevents according to claim 8; It is characterized in that: described electromechanical trigger mechanism (14) comprises fixed mount (14.1), draws pin (14.5), locating dowel pin (14.3) and electromagnet (14.2); Described fixed mount (14.1) is fixedly mounted on the steel wire braking (2); The said pin (14.5) that draws is slidingly fitted on the fixed mount (14.1); And the head that draws pin (14.5) is connected with steel wire braking (2) through brake cable (13), saidly draws pin (14.5) to be provided with to make its first retracing spring (14.6) that resets, and draws pin (14.5) to be provided with annular spacing groove (14.7); Described locating dowel pin (14.3) is slidingly fitted on the fixed mount (14.1); And locating dowel pin (14.3) is provided with second retracing spring (14.4) that locating dowel pin (14.3) is resetted; Said electromagnet (14.2) is installed on the fixed mount (14.1); Electromagnet (14.2) is connected with trigger switch (12) through lead; And the magnetic pole of electromagnet (14.2) is near the top of locating dowel pin (14.3), the lower end of said locating dowel pin (14.3) under electromagnet (14.2) "on" position and first retracing spring (14.6) and second retracing spring (14.4) be positioned at the annular spacing groove (14.7) that draws pin (14.5) when all being compressive state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205460094U CN202379553U (en) | 2011-12-23 | 2011-12-23 | Device for preventing accidental moving of elevator car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205460094U CN202379553U (en) | 2011-12-23 | 2011-12-23 | Device for preventing accidental moving of elevator car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202379553U true CN202379553U (en) | 2012-08-15 |
Family
ID=46628071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205460094U Withdrawn - After Issue CN202379553U (en) | 2011-12-23 | 2011-12-23 | Device for preventing accidental moving of elevator car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202379553U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102556799A (en) * | 2011-12-23 | 2012-07-11 | 宁波申菱电梯配件有限公司 | Device for preventing lift car of lift from accidentally moving |
| CN103950807A (en) * | 2014-03-31 | 2014-07-30 | 日立电梯(上海)有限公司 | Accidental movement preventing device for lift |
| CN105253737A (en) * | 2015-11-27 | 2016-01-20 | 沈阳市蓝光自动化技术有限公司 | Protection method for accidental moving of lift car |
-
2011
- 2011-12-23 CN CN2011205460094U patent/CN202379553U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102556799A (en) * | 2011-12-23 | 2012-07-11 | 宁波申菱电梯配件有限公司 | Device for preventing lift car of lift from accidentally moving |
| CN102556799B (en) * | 2011-12-23 | 2014-02-12 | 宁波申菱电梯配件有限公司 | Device for preventing lift car of lift from accidentally moving |
| CN103950807A (en) * | 2014-03-31 | 2014-07-30 | 日立电梯(上海)有限公司 | Accidental movement preventing device for lift |
| CN105253737A (en) * | 2015-11-27 | 2016-01-20 | 沈阳市蓝光自动化技术有限公司 | Protection method for accidental moving of lift car |
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| C14 | Grant of patent or utility model | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20120815 Effective date of abandoning: 20140212 |
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| RGAV | Abandon patent right to avoid regrant |