CN103818794A - Protecting device for preventing elevator cage from accidently moving - Google Patents
Protecting device for preventing elevator cage from accidently moving Download PDFInfo
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- CN103818794A CN103818794A CN201410074918.0A CN201410074918A CN103818794A CN 103818794 A CN103818794 A CN 103818794A CN 201410074918 A CN201410074918 A CN 201410074918A CN 103818794 A CN103818794 A CN 103818794A
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Abstract
The invention provides a protecting device for preventing an elevator cage from accidently moving. The protecting device for preventing the elevator cage from accidently moving comprises a cage monitoring system, a first safety relay and a second safety relay, wherein the cage monitoring system is connected with the first safety relay and the second safety relay; the cage monitoring system is used for monitoring the position information and the speed information of the elevator cage and respectively outputting the position information and the speed information to the first safety relay and the second safety relay; the first safety relay and the second safety relay are used for performing safety control on the elevator cage according to the position information and the speed information of the elevator cage. The protecting device for preventing the elevator cage from accidently moving provided by the invention can reduce the potential safety hazard caused by the accident moving of the elevator cage and can increase the whole safety performance of the elevator.
Description
Technical field
The present invention relates to elevator technology, especially, relate to a kind of fender guard that prevents accidental movement of elevator cage.
Background technology
Elevator is a kind of transportation means of vertical lift, and it can draw car by engine installation and deliver passenger or goods.Along with the development of computer technology, automatic technology and Power Electronic Technique, elevator is more and more higher in demand and the popularity rate of skyscraper and public place.
In the time of floor Men district that elevator car arrives passenger specifies, controls lift car is stopped perpendicular movement by elevator drive system, and open the gate of lift car and the Room door of this floor, so that passenger passes in and out lift car.But, in running process of elevator, likely occur causing lift car to occur non-road-holding property car accidental movement (Unintended Car Motion in floor door district due to a certain component aging of elevator drive system or inefficacy, UCM) situation, this will bring great potential safety hazard to passenger.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of fender guard that prevents accidental movement of elevator cage that can reduce the potential safety hazard that car accidental movement brings.
The fender guard that prevents accidental movement of elevator cage provided by the invention, comprise car monitored control system, the first safety relay and the second safety relay, wherein, described car monitored control system is connected to described the first safety relay and described the second safety relay, described car monitored control system is for monitoring location information and the velocity information of lift car, and described location information and described velocity information are exported to respectively to described the first safety relay and described the second safety relay, described the first safety relay and described the second safety relay are for carrying out safety control according to the location information of described lift car and velocity information to lift car.
In a kind of preferred embodiment of the fender guard that prevents accidental movement of elevator cage provided by the invention, described car monitored control system is arranged on described lift car, and it comprises monitoring position module; Described monitoring position module coordinates flat bed clamp to detect the up-downgoing information He Men district switching information of described lift car, and respectively described up-downgoing information He Men district switching information is exported to first input end mouth and second input port of described the first safety relay, wherein said door district switching information is used to indicate described lift car and whether arrives the flat bed door district at described flat bed clamp place.
In a kind of preferred embodiment of the fender guard that prevents accidental movement of elevator cage provided by the invention, described monitoring position module comprises upper signal head, the next signal head He Men district switch, wherein said upper signal head and described the next signal head are interconnected and are further connected to the first input end mouth of described the first safety relay by "or" logical relation, described door district switch is connected to the second input port of described the first safety relay; Described flat bed clamp comprises position probing clamp, described upper signal head and the described the next signal head first input end mouth to described the first safety relay in the time the up-downgoing test section of described position probing clamp being detected is exported corresponding indicator signal, and described door district switch is exported corresponding indicator signal to the second input port of described the first safety relay in the time described position probing clamp Men district test section being detected.
In a kind of preferred embodiment of the fender guard that prevents accidental movement of elevator cage provided by the invention, described car monitored control system also comprises running velocity monitoring module and actuating speed monitoring module, described running velocity monitoring module comprises car speed inductor and elevator car, described actuating speed monitoring module comprises elevator drive coder and electric life controller, and described car speed inductor is connected to described elevator car and described elevator car and is further connected to the first input end mouth of described the second safety relay; Described elevator drive coder is connected to described electric life controller and described electric life controller and is further connected to the second input port of described the second safety relay.
In a kind of preferred embodiment of the fender guard that prevents accidental movement of elevator cage provided by the invention, described flat bed clamp also comprises that the speed with multiple spaced speed detection unit detects clamp, described car speed inductor detects that described speed detects the speed detection unit of clamp and exports continuous impulse signal, described elevator car is according to the running velocity of lift car described in described continuous impulse calculated signals, and the first input end mouth to described the second safety relay is exported corresponding indicator signal in the time that the running velocity of described lift car exceeds preset value.
In a kind of preferred embodiment of the fender guard that prevents accidental movement of elevator cage provided by the invention; described elevator drive coder is for driving code signal to described electric life controller output; described electric life controller is for calculate the actuating speed of described lift car according to described driving code signal, and the second input port to described the second safety relay is exported corresponding indicator signal in the time that the actuating speed of described lift car exceeds described preset value.
In a kind of preferred embodiment of the fender guard that prevents accidental movement of elevator cage provided by the invention, described car monitored control system comprises absolute-value device, and described absolute-value device is connected to described the first safety relay and described the second safety relay; Described absolute-value device comprises magnet circle and inductor, described inductor is for coordinating described magnet circle to detect up-downgoing information, door district's switching information and the running velocity information of described lift car, described absolute-value device also comprises up-downgoing information output mouth, door district's switching information output port and running velocity output port, described up-downgoing information output mouth and described running velocity output port are connected to described the first safety relay, and for the up-downgoing information of described lift car and running velocity information are exported to described the first safety relay; Described door district switching information output port is connected to described the second safety relay, and for described lift car Men district switching information is exported to described the second safety relay.
In a kind of preferred embodiment of the fender guard that prevents accidental movement of elevator cage provided by the invention; described car monitored control system also comprises described actuating speed monitoring module, and described actuating speed monitoring module is exported to described the second safety relay for detection of the actuating speed information of described lift car and by described actuating speed information.
In a kind of preferred embodiment of the fender guard that prevents accidental movement of elevator cage provided by the invention; described inductor is also for coordinating described magnet circle to detect the actuating speed information of described lift car; and described absolute-value device also comprises actuating speed output port; described actuating speed output port is connected to described the second safety relay, for the actuating speed information of described lift car is exported to described the second safety relay.
In a kind of preferred embodiment of the fender guard that prevents accidental movement of elevator cage provided by the invention, described the first safety relay stops controlling described elevator emergency detecting output safety control signal in the time that gate described lift car under open mode of described lift car shifts out described flat bed door district, described the second safety relay closes with the gate of controlling described lift car detecting output safety control signal in the time that the speed of described lift car exceeds preset value flat bed door district in the situation that described in described elevator car arrives, and described the second safety relay in the time that the speed that detects described lift car in the situation that flat bed door district and gate are opened described in described elevator car arrives exceeds preset value output safety control signal to control described elevator emergency brake.
Location information and velocity information that the fender guard that prevents accidental movement of elevator cage provided by the invention detects during according to elevator car arrives door district; and utilize safety governor realize as emergency braking or close the safety controls such as gate; thereby the potential safety hazard of avoiding occurring the non-road-holding property accidental movement of lift car in the time that flat bed door district passenger passes in and out lift car and bring to passenger, the general safety performance of raising elevator.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing, wherein:
Fig. 1 is the structural representation of a kind of embodiment of fender guard that prevents accidental movement of elevator cage provided by the invention;
Fig. 2 is the electrical block diagram of the first safety relay of the fender guard that prevents accidental movement of elevator cage shown in Fig. 1;
Fig. 3 is the electrical block diagram of the second safety relay of the fender guard that prevents accidental movement of elevator cage shown in Fig. 1;
Fig. 4 is the structural representation of the another kind of embodiment of fender guard that prevents accidental movement of elevator cage provided by the invention;
Fig. 5 is the structural representation of another embodiment of fender guard that prevents accidental movement of elevator cage provided by the invention.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making all other embodiment that obtain under creative work prerequisite, belong to the scope of protection of the invention.
The invention provides a kind of fender guard that prevents accidental movement of elevator cage and prevent that elevator from car accidental movement occurring in floor door district.Refer to Fig. 1, its structural representation that is a kind of embodiment of fender guard that prevents accidental movement of elevator cage provided by the invention.The described fender guard 100 that prevents accidental movement of elevator cage can be applied in rope elevator, and it comprises car monitored control system 10, the first safety relay 150 and the second safety relay 160.Wherein, described car monitored control system 10 can comprise monitoring position module 110, running velocity monitoring module 120, actuating speed detection module 130 and flat bed clamp 140.
Described monitoring position module 110 and described running velocity detection module 120 can be arranged on the envelope outside of described lift car, its two can be along with described lift car is in vertical motion.Described position detecting module 110 can comprise upper signal head (Upper Signaler, USI) 111, the next signal head (Lower Signaler, LSI) 112He Men district switch (Door Zone Switch, DZS) 113.Wherein, thereby described upper signal head 111 and described the next signal head 112 can setting parallel with one another form "or" logical relation, and the two is connected to respectively one of them input port (hereinafter referred to as first input end mouth) 151 of described the first safety relay 150 by switching diode; Described door district switch 113 can be connected to another input port (hereinafter referred to as the second input port) 152 of described the first safety control 150.
Described upper signal head 111 is arranged on described the next signal head 112 tops, and in one embodiment, described upper signal head 111 and described the next signal head 112 can all adopt infrared pickoff.Described door district switch 113 can adopt ferromagnetic switch, and the height of the induction part 116 of described door district switch 113 can be between the induction part of described upper signal head 111 114 and the induction part 115 of described the next signal head 112.
Described flat bed clamp 140 can be arranged on elevator hoistways inside and be positioned at the relevant position in flat bed door district.Described flat bed clamp 140 can adopt trilobal cross baffle arrangement, and it comprises that position probing clamp 141 and speed detect clamp 142.Wherein, described position probing clamp 141 can coordinate described monitoring position module 110 to detect described lift car whether to enter or leave described flat bed door district; Described speed detects clamp 142 and can coordinate described running velocity monitoring module 120 to detect the running velocity of described lift car.
Particularly, described position probing clamp 141 and described speed detect clamp 142 adjacent settings respectively, and the described speed vertical length length of described lift car perpendicular movement direction (along) that detects clamp 142 is greater than the vertical length of described position probing clamp 141.Such as, in one embodiment, the vertical length of described position probing clamp 141 can be approximately 40 centimetres (cm), and the length of described speed detection clamp 142 is approximately 50cm, therefore the both sides that described speed detects clamp 142 about 5cm that stretches out on described position probing clamp 141 bases respectively, as shown in Figure 1.
Described position probing clamp 141 can comprise up-downgoing test section 146He Men district test section 147, wherein said up-downgoing test section 146 is arranged on a side that detects clamp 142 in described position probing clamp 141 away from described speed, and described door district test section 147 is arranged on a side of contiguous described speed detection clamp 142 in described position probing clamp 141.
In the time that described lift car moves vertically upward or move downward and arrive described flat bed door district, described upper signal head 111 and described the next signal head 112 can detect the up-downgoing test section 146 of described position probing clamp 141, and described door district switch 113 can detect described position probing clamp 141Men district test section 147; Accordingly, described upper signal head 111 and described the next signal head 112 can be opened and export first signal to the first input end mouth 151 of described the first safety relay 150, and described door district switch 113 can be opened and export secondary signal to the second input port 152 of described the first safety relay 150.In specific embodiment, described first signal and described secondary signal can drag down the port voltage of the first input end mouth 151 of described the first safety relay 150 and described the second input port 152, to make described the first safety relay 150 start safety control.
Because the induction part 116 of described door district switch 113 is between the induction part 114 of described upper signal head 111 and the induction part 115 of described the next signal head 112, therefore, in the time that described lift car moves vertically upward, described upper signal head 111 is than described door district switch 113 pre-coolings, and described the next signal head 112 is delayed than described door district switch 113 and closed; Similar ground, in the time that described lift car moves vertically downward, described the next signal head 112 is than described door district switch 113 pre-coolings, and described upper signal head 111 is delayed and is closed than described door district switch 113.Thus, described in can guarantee control module startup corresponding with described the second input port 152 in described the first safety relay 150 time, another corresponding control module of first input end mouth 151 starts.
Described running velocity detection module 120 can comprise car speed inductor (Car Speed Sensor, CSS) 121 and elevator car (Car Controller) 123, wherein said car speed inductor 121 is connected to described elevator car 123, and described elevator car 123 is further connected to one of them input port (hereinafter referred to as first input end mouth) 161 of described the second safety relay 160.Described actuating speed detection module 130 can comprise elevator drive coder (Elevator Motor Encoder, MEENC) 131 and electric life controller (Elevator Controller) 133, described elevator drive coder 131 is connected to described electric life controller 133, and described electric life controller 133 is further connected to another input port (hereinafter referred to as the second input port) 162 of described the second safety relay 160.
Described car speed inductor 121 can adopt infrared pickoff equally, and the induction part 122 of described car speed inductor 121 can approximately be positioned at identical height with the induction part 116 of described door district switch 113.Described speed detects clamp 142 can comprise running velocity test section 148, and described running velocity test section 148 is arranged on described speed and detects the side away from described position probing clamp 141 in clamp 142.Described running velocity test section 148 can comprise multiple speed detection unit 149, described multiple speed detection unit 149 can be arranged in order and interval setting each other, such as, the height of each speed detection unit 149 can be approximately 1cm, and the height of white space 144 between adjacent two speed detection unit 149 also can be approximately 1cm.
When described lift car is vertically upward or while moving downward and arrive described flat bed door district, described car speed inductor 121 will detect that described speed detects the running velocity test section 148 of clamp 142, and described in when the induction part 122 of described car speed inductor 121 is relative with the speed detection unit 149 of described running velocity test section 148, car speed inductor 121 is by unlatching and export an impulse singla, and white space 144 between described induction part 122 and adjacent two speed detection unit 149 relative in described in car speed inductor 121 will close and stop inputting described impulse singla.Because described running velocity test section 148 has the speed detection unit 149 that multiple consecutive intervals arrange, therefore described car speed inductor 121 will be exported continuous impulse signal to described elevator car 123.
The continuous impulse signal that described elevator car 123 can be exported according to described car speed inductor 121, calculates the running velocity of described lift car.If the running velocity that described elevator car 123 detects described lift car exceedes preset value (such as 0.3 meter per second), the output that described elevator car 123 outputs to the first input end mouth 161 of described the second safety relay 160 will be eliminated, such as the port level of the first input end mouth 161 of described the second safety relay 160 now can be dragged down, to start corresponding safety control
Described elevator drive coder 131 can drive code signal to described electric life controller 133 outputs, and described driving code signal can be continuous impulse signal equally; The continuous impulse signal that described electric life controller 133 drives coder 131 to export according to described car, calculates the actuating speed of described lift car.Similar ground, if the actuating speed that described electric life controller 133 detects described lift car exceedes described preset value (such as 0.3 meter per second), the output that described electric life controller 133 outputs to the second input port 162 of described the second safety control 160 is eliminated equally, such as, the port level of the second input port 162 of now described the second safety control 160 can be dragged down, to start corresponding safety control.
Described the first safety relay 150 and the second safety relay 160 can be safety relay unit (SafetyRelayUnit, SRU), the two is mutually connected and is connected between vital circuit 180 and operation contactless switch 190, and described operation contactless switch 190 can further be connected to elevator drive system 170.Described the first safety relay 150 and described the second safety relay 160 can carry out elevator safety defense controls in the time that non-road-holding property accidental movement appears in described lift car, such as output safety control signal is to make described elevator drive system 170 control described elevator emergency brake or control the gate of lift car and close etc.
Particularly, the input signal detection that offers its input port 151 and 152 according to described monitoring position module 110 when described the first safety relay 150 goes out in the time that gate described lift car under open mode of described lift car shifts out described flat bed door district, and described the first safety relay 150 can stop controlling described elevator emergency by output safety control signal.
On the other hand, the input signal detection that offers its input port 161 and 162 according to described running velocity monitoring module 120 and described actuating speed detection module 130 when described the second safety relay 160 goes out at the speed (exceeding described preset value 0.3/ second) of described lift car flat bed door district in the situation that described in described elevator car arrives, and described the second safety relay 160 can close with the gate of controlling described lift car by output safety control signal.
In addition, described the second safety relay 160 goes out the speed (exceeding described preset value 0.3/ second) of described lift car in the situation that flat bed door district and gate are opened described in described elevator car arrives according to the input signal detection of its input port 161 and 162, described the second safety relay 160 also can output safety control signal to control described elevator emergency brake.
For further guaranteeing the safety performance of elevator, in operational process, described elevator drive system 170 can monitor described the first safety relay 150 and whether described the second safety relay 160 breaks down, and between two input ports such as the two, whether occurs short trouble.If there is short trouble between the first input end mouth 151 of described the first safety relay 150 and the second input port 152, or, between the first input end mouth 161 of described the second safety relay 160 and the second input port 162, there is short trouble, described elevator drive system 170 will be forbidden the pre-door opening function of described lift car and other functions in flat bed door district, and by described lift car be driven into lowest floor stop, and open gate discharge passenger quit work to carry out repair and maintenance.
Refer to Fig. 2, it is the circuit diagram of 150 1 kinds of optional embodiments of the first safety relay of the fender guard that prevents accidental movement of elevator cage 100 shown in Fig. 1.Described the first safety relay 150 can comprise the first control module 153, the second control module 154, power module 155, switch module 156 and feedback module 157.
Wherein, described the first control module 153 comprises the first coil 201 and the first normal open switch 202; Wherein, described first coil 201 one end are connected to described power module 155, and the other end is connected to one end of described the first normal open switch 202, and the other end of described the first normal open switch 202 is connected to the first input end mouth 151 of described the first safety relay 150.
Described the second control module 154 comprises the second coil 203 and the second normal open switch 204; Wherein, described second coil 203 one end are connected to described power module 155, and the other end is connected to one end of described the second normal open switch 204, and the other end of described the second normal open switch 204 is connected to the second input port 152 of described the first safety relay 150.
Described power module 155 comprises tertiary winding 205, the 3rd normal open switch 206, the first normally closed switch 207 and the second normally closed switch 208; Wherein, described tertiary winding 205 one end are connected to voltage input end to receive positive voltage (as+24V), and the other end is connected to one end of described the second normally closed switch 208; The other end of described the second normally closed switch 208 is connected to ground terminal (as 0V) by described the first normally closed switch 207; Described the 3rd normal open switch 206 is parallel with one another with described the first normally closed switch 207.
Described switch module 156 comprises the 4th normal open switch 209, the 5th normal open switch 210 and the 3rd normally closed switch 211; Described the 4th normal open switch 209, described the 5th normal open switch 210 and described the 3rd normally closed switch 211 are connected successively and are connected between two switch port of described the first safety relay 150.
Described feedback module 157 comprises the 6th normal open switch 212, the 7th normal open switch 213 and the 4th normally closed switch 214, wherein, described the 6th normal open switch 215, described the 7th normal open switch 213 and described the 4th normally closed switch 214 are connected successively and are connected between two feedback ports of described the first safety relay 150.The feedback port of described the first safety relay 150 can further be connected to the car control function test module of elevator drive system 170, so that the feedback signal output of described the first safety relay 150 is carried out to car control function test.
Preferably, in specific embodiment, described the first control module 153 can also comprise the 8th normal open switch 215 and the 9th normal open switch 216, and described the 8th normal open switch 215 and described the 9th normal open switch 216 interconnect and are connected in parallel between described the first normal open switch 202.In addition, the two ends of described the first coil 201 can also be parallel with the first diode 217, between the first input end mouth 151 of described the first safety relay 150 and described power module 155, can also be connected with the first indicator lamp 218, wherein, described the first indicator lamp 218 can be light-emitting diode (Light Emitting Diode, LED), its positive pole is connected to the voltage input end of described power module 155 by the first resistance 219, and its negative pole is connected to the first input end mouth 151 of described the first safety relay 150.
Described the second control module 154 can also comprise the 5th normally closed switch 220 and the tenth normal open switch 221, and described the 5th normally closed switch 220 and described the tenth normal open switch 221 interconnect and are connected in parallel between described the second normal open switch 204.Similar ground, the two ends of described the second coil 202 can also be parallel with the second diode 222, between the first input end mouth 152 of described the second safety relay 150 and described power module 155, can also be connected with the second indicator lamp 223, such as, described the second indicator lamp 223 can be light-emitting diode equally, its positive pole is connected to the voltage input end of described power module 155 by the second resistance 224, and its negative pole is connected to the first input end mouth 152 of described the first safety relay 150.
Described power module 155 can also comprise the 3rd diode 225, the first electric capacity 226 and the 3rd resistance 227; Described the first electric capacity 226 and described the 3rd resistance 227 interconnect, and parallel with one another with described tertiary winding 205 and described the 3rd diode 225.
In described the first safety relay 153, described the first normal open switch 202, described the second normally closed switch 208, described the 5th normal open switch 210, described the 7th normal open switch 213 and described the 5th normally closed switch 220 are the controlled switch of described the first coil 201, and its on off state can change in the time that described the first coil 201 is switched on.Described the second normal open switch 204, described the first normally closed switch 207, described the 4th normal open switch 209, described the 6th normal open switch 206 and described the 8th normal open switch 215 are the controlled switch of described the second coil 203, and its on off state can change in the time that described the second coil 203 is switched on.Described the 3rd normal open switch 206, described the 3rd normally closed switch 211, described the 4th normally closed switch 214, described the 9th normal open switch 216 and described the tenth normal open switch 221 are the controlled switch of described tertiary winding 205, and its on off state can change in the time that described tertiary winding 205 is switched on.
For ease of understanding, below sketch the working process of described the first safety relay 150.In the time that described lift car does not also run to flat bed door district, the first input end mouth 151 of described the first safety relay 150 and the second input port 152 also have input and keep high level state, described the first coil 201 and described the second coil 202 all cannot form path therefore its controlled switch all keep original and often open or normally off.Described tertiary winding 205 forms path with described the first normally closed switch 207 and the second normally closed switch 208, therefore the on off state of the controlled switch of described tertiary winding 205 changes, such as described the 3rd normal open switch 206 is converted to closure state, and described the 3rd normally closed switch 211 and described the 4th normally closed switch 212 are converted to off-state, therefore not output of the switch port of described the first safety relay 150 and feedback port.
In the time that described lift car does not also run to flat bed door district, thereby described upper signal head 111 and/or described the next signal head 112 detect the up-downgoing test section 146 of described position probing clamp 141 and produce signal the level of described first input end mouth 151 is dragged down, thereby described door district switch 113 detects described position probing clamp 141Men district test section 147 and produces signal the level of described the second input port 152 is dragged down.Now, described the first coil 201 and described the second coil 203 are switched on respectively and the on off state of its controlled switch are changed, and the energising of described tertiary winding 203 disconnects and make its controlled switch keep original switch state.Such as, described the first normal open switch 202, described the second normal open switch 204, the 4th normal open switch 209, the 5th normal open switch 210, the 6th normal open switch 212 and the 7th normal open switch 213 are converted to closure state, and described the 3rd normally closed switch 211 and described the 4th normally closed switch 214 revert to normally off; Therefore, the switch port of described the first safety relay 150 is interconnected and exports corresponding safety control signal, and the feedback port of described the first safety relay 150 is interconnected equally and exports corresponding feedback signal.
Refer to Fig. 3; it prevents the circuit diagram of 160 1 kinds of optional embodiments of the second safety relay of the fender guard 100 of accidental movement of elevator cage described in being; circuit structure and the principle of work of the first safety relay 150 shown in the circuit structure of described the second safety control 160 and Fig. 2 are similar, repeat no more herein.As mentioned above, the first input end mouth 161 of described the second safety relay 160 and the port voltage of the second input port 162 exceed preset value (0.3 meter per second) time in the running velocity of described lift car and actuating speed respectively and are dragged down, thereby the switch port that makes described the second safety relay 160 is interconnected and exports corresponding safety control signal, and the feedback port of described the second safety relay 160 is interconnected equally and exports corresponding feedback signal.
Refer to Fig. 4; it is the structural representation of the another kind of embodiment of fender guard that prevents accidental movement of elevator cage provided by the invention; the described fender guard 400 that prevents accidental movement of elevator cage is only applicable to rope elevator; and the fender guard that prevents accidental movement of elevator cage 100 shown in its structure and Fig. 1 is close; the key distinction is, the car monitored control system 40 of the fender guard that prevents accidental movement of elevator cage 400 of the present embodiment adopts absolute value configuration-system to carry out the position of lift car and the monitoring of speed.
Particularly, described car monitored control system 40 comprises absolute-value device 410 and actuating speed detection module 440.In the process of the vertical operation of lift car, up-downgoing information when described absolute-value device 410 can detect elevator car arrives flat bed door district with and running velocity information, and respectively the up-downgoing information of described lift car, running velocity information He Men district switching information are outputed to respectively to up-downgoing information output mouth 421, running velocity output port 422He Men district information output mouth 431 by internal bus.Wherein, described up-downgoing information output mouth 421 and described running velocity output port 422 are connected respectively to the first input end mouth 451 of the first safety relay 450 and the first input end mouth 461 of the second safety relay 460, and described door district information output mouth 431 is connected to the second input port 452 of described the first safety relay 450.Actuating speed detection module 130 structural similitudies of the fender guard that prevents accidental movement of elevator cage 100 shown in described actuating speed detection module 440 and Fig. 1, and it is connected to the second input port 462 of described the second safety relay 460.
Described the first safety relay 450 can get by its first input end mouth 451 and the second input port 452 the up-downgoing information He Men district switching information of described lift car from described absolute-value device 410, described the second safety relay 460 can get by its first input end mouth 461 and the second input port 462 running velocity information and the actuating speed information of described lift car from described absolute-value device 410, and, the two carries out elevator safety defense controls in the time that non-road-holding property accidental movement appears in described lift car according to above-mentioned information, such as output safety control signal closes with the gate that makes elevator emergency brake described in described elevator drive system control or control lift car etc., specifically can consult the description of above embodiment.
Refer to Fig. 5, its structural representation that is another embodiment of fender guard that prevents accidental movement of elevator cage provided by the invention, the described fender guard 500 that prevents accidental movement of elevator cage is only applicable to hydraulic elevator, and the fender guard that prevents accidental movement of elevator cage 400 shown in its structure and Fig. 4 is close, the key distinction is, the absolute value configuration-system of the car monitored control system 50 of the fender guard that prevents accidental movement of elevator cage 500 of the present embodiment also has actuating speed measuring ability simultaneously, therefore configure independent actuating speed detection module 440 and detect the actuating speed of lift car without the fender guard that prevents accidental movement of elevator cage 400 as shown in Figure 4.
Particularly; in the car monitored control system 50 of the described fender guard 500 that prevents accidental movement of elevator cage, up-downgoing information, running velocity information, door district's switching information and actuating speed information when absolute-value device 510 can detect described elevator car arrives flat bed door district.And described absolute-value device 510 can be exported to up-downgoing information output mouth 521, running velocity output port 522, door district's switching information output port 531 and actuating speed output port 532 by described up-downgoing information, described running velocity information, described door district's switching information and described actuating speed information respectively by bus.
On the other hand, described up-downgoing information output mouth 521 and described door district switching information output port 531 are further connected to respectively first input end mouth 551 and second input port 552 of the first safety relay 550, and described running velocity output port 522 and described actuating speed output port 532 are further connected to respectively first input end mouth 561 and second input port 562 of the second safety relay 560.Described the first safety relay 550 can get by its first input end mouth 551 and the second input port 552 the up-downgoing information He Men district switching information of described lift car from described absolute-value device 510, described the second safety relay 560 can get by its first input end mouth 561 and the second input port 562 running velocity information and the actuating speed information of described lift car from described absolute-value device 510, and the two carries out elevator safety defense controls in the time that non-road-holding property accidental movement appears in described lift car according to above-mentioned information.
Location information and velocity information that the fender guard that prevents accidental movement of elevator cage provided by the invention detects during according to elevator car arrives door district; and utilize safety governor to realize safety control; as emergency braking or close gate etc.; thereby the potential safety hazard of avoiding lift car to occur non-road-holding property car accidental movement in flat bed door district and to bring to passenger, the general safety performance of raising elevator.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes specification sheets of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. one kind prevents the fender guard of accidental movement of elevator cage, it is characterized in that, comprise car monitored control system, the first safety relay and the second safety relay, wherein, described car monitored control system is connected to described the first safety relay and described the second safety relay, described car monitored control system is for monitoring location information and the velocity information of lift car, and described location information and described velocity information are exported to respectively to described the first safety relay and described the second safety relay, described the first safety relay and described the second safety relay are for carrying out safety control according to the location information of described lift car and velocity information to lift car.
2. the fender guard that prevents accidental movement of elevator cage as claimed in claim 1, is characterized in that, described car monitored control system is arranged on described lift car, and it comprises monitoring position module; Described monitoring position module coordinates flat bed clamp to detect the up-downgoing information He Men district switching information of described lift car, and respectively described up-downgoing information He Men district switching information is exported to first input end mouth and second input port of described the first safety relay, wherein said door district switching information is used to indicate described lift car and whether arrives the flat bed door district at described flat bed clamp place.
3. the fender guard that prevents accidental movement of elevator cage as claimed in claim 2, it is characterized in that, described monitoring position module comprises upper signal head, the next signal head He Men district switch, wherein said upper signal head and described the next signal head are interconnected and are further connected to the first input end mouth of described the first safety relay by "or" logical relation, described door district switch is connected to the second input port of described the first safety relay; Described flat bed clamp comprises position probing clamp, described upper signal head and the described the next signal head first input end mouth to described the first safety relay in the time the up-downgoing test section of described position probing clamp being detected is exported corresponding indicator signal, and described door district switch is exported corresponding indicator signal to the second input port of described the first safety relay in the time described position probing clamp Men district test section being detected.
4. the fender guard that prevents accidental movement of elevator cage as claimed in claim 2, it is characterized in that, described car monitored control system also comprises running velocity monitoring module and actuating speed monitoring module, described running velocity monitoring module comprises car speed inductor and elevator car, described actuating speed monitoring module comprises elevator drive coder and electric life controller, and described car speed inductor is connected to described elevator car and described elevator car and is further connected to the first input end mouth of described the second safety relay; Described elevator drive coder is connected to described electric life controller and described electric life controller and is further connected to the second input port of described the second safety relay.
5. the fender guard that prevents accidental movement of elevator cage as claimed in claim 4, it is characterized in that, described flat bed clamp also comprises that the speed with multiple spaced speed detection unit detects clamp, described car speed inductor detects that described speed detects the speed detection unit of clamp and exports continuous impulse signal, described elevator car is according to the running velocity of lift car described in described continuous impulse calculated signals, and the first input end mouth to described the second safety relay is exported corresponding indicator signal in the time that the running velocity of described lift car exceeds preset value.
6. the fender guard that prevents accidental movement of elevator cage as claimed in claim 5; it is characterized in that; described elevator drive coder is for driving code signal to described electric life controller output; described electric life controller is for calculate the actuating speed of described lift car according to described driving code signal, and the second input port to described the second safety relay is exported corresponding indicator signal in the time that the actuating speed of described lift car exceeds described preset value.
7. the fender guard that prevents accidental movement of elevator cage as claimed in claim 1, is characterized in that, described car monitored control system comprises absolute-value device, and described absolute-value device is connected to described the first safety relay and described the second safety relay; Described absolute-value device comprises magnet circle and inductor, described inductor is for coordinating described magnet circle to detect up-downgoing information, door district's switching information and the running velocity information of described lift car, described absolute-value device also comprises up-downgoing information output mouth, door district's switching information output port and running velocity output port, described up-downgoing information output mouth and described running velocity output port are connected to described the first safety relay, and for the up-downgoing information of described lift car and running velocity information are exported to described the first safety relay; Described door district switching information output port is connected to described the second safety relay, and for described lift car Men district switching information is exported to described the second safety relay.
8. the fender guard that prevents accidental movement of elevator cage as claimed in claim 7; it is characterized in that; described car monitored control system also comprises described actuating speed monitoring module, and described actuating speed monitoring module is exported to described the second safety relay for detection of the actuating speed information of described lift car and by described actuating speed information.
9. the fender guard that prevents accidental movement of elevator cage as claimed in claim 7; it is characterized in that; described inductor is also for coordinating described magnet circle to detect the actuating speed information of described lift car; and described absolute-value device also comprises actuating speed output port; described actuating speed output port is connected to described the second safety relay, for the actuating speed information of described lift car is exported to described the second safety relay.
10. prevent as claimed in any one of claims 1-9 wherein the fender guard of accidental movement of elevator cage, it is characterized in that, described the first safety relay stops controlling described elevator emergency detecting output safety control signal in the time that gate described lift car under open mode of described lift car shifts out described flat bed door district, described the second safety relay closes with the gate of controlling described lift car detecting output safety control signal in the time that the speed of described lift car exceeds preset value flat bed door district in the situation that described in described elevator car arrives, and described the second safety relay in the time that the speed that detects described lift car in the situation that flat bed door district and gate are opened described in described elevator car arrives exceeds preset value output safety control signal to control described elevator emergency brake.
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| CN201410074918.0A CN103818794B (en) | 2014-03-03 | 2014-03-03 | Prevent the protector of accidental movement of elevator cage |
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| CN201410074918.0A CN103818794B (en) | 2014-03-03 | 2014-03-03 | Prevent the protector of accidental movement of elevator cage |
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| CN105173953A (en) * | 2015-06-24 | 2015-12-23 | 贵州天义电梯成套设备有限公司 | Control system and control method for preventing elevator car from accidentally moving |
| CN105540378A (en) * | 2016-02-26 | 2016-05-04 | 上海盛蒂斯自动化设备有限公司 | Protection system for preventing elevator car from moving by accident |
| CN106829678A (en) * | 2017-03-03 | 2017-06-13 | 北京索德电气工业有限公司 | Multifunctional elevator car accidental movement protection system and method |
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| CN110395630A (en) * | 2019-07-26 | 2019-11-01 | 上海三菱电梯有限公司 | Elevator control circuit |
| CN112061913A (en) * | 2019-06-10 | 2020-12-11 | 上海三菱电梯有限公司 | Protection device for preventing car from accidentally moving |
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| CN113460838B (en) * | 2020-03-31 | 2023-10-10 | 苏州汇川技术有限公司 | Door lock bypass control method and system, electronic safety controller and main controller |
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