CN211110506U - Rope end tensioning detection mechanism and elevator safety protection device - Google Patents
Rope end tensioning detection mechanism and elevator safety protection device Download PDFInfo
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- CN211110506U CN211110506U CN201921428581.3U CN201921428581U CN211110506U CN 211110506 U CN211110506 U CN 211110506U CN 201921428581 U CN201921428581 U CN 201921428581U CN 211110506 U CN211110506 U CN 211110506U
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Abstract
The utility model discloses a fag end tensioning detection mechanism, fag end subassembly and annular pressure sensor that correspond with the steel wire including fag end frame, a plurality of, the fag end subassembly is including fixed corresponding respectively a plurality of fag end spare and the elastic compression of steel wire are in corresponding spring part between fag end spare and the fag end frame, each annular pressure sensor encircles in corresponding on the steel wire and extruded in the tip of spring part, in order to detect the packing force of spring part conduct the tensile force of steel wire, the testing result is accurate. The utility model also discloses an elevator safety arrangement of having this fag end tensioning detection mechanism.
Description
Technical Field
The utility model relates to a detection device especially relates to safety protection behind fag end tensioning detection mechanism and the elevator trouble.
Background
With the increasing number of high-rise buildings, elevators have become a part of life of people, and people pay more attention to the safety of the elevators. At present, micro switches, block type pressure sensors and the like are commonly adopted for weighing in the elevator technology; this mode only provides the elevator and whether overload suggestion can not detect out the steel wire fracture problem, needs special slack rope sensor to detect whether wire rope loosens the fracture.
For example, referring to chinese patent CN201420752309.1, in the conventional elevator safety protection, a slack sensor is used to detect whether a steel wire rope is slack, and an overload sensor is used to detect whether a steel wire rope is overloaded, which often requires two detectors to detect separately, and the structure is complex. And use slack sensor to detect wire rope lax, the testing result is inaccurate, especially when causing the wire rope skew because other trouble, appears the false detection.
In the above-described protection device, when the wire rope is loosened, the control circuit of the equipment is immediately cut off, so that the equipment is no longer operated. However, when the steel wire rope is loosened, accidents are easy to happen due to insufficient lifting force of other steel wire ropes, especially when the steel wire rope is broken and the bearing of the elevator is too heavy, at the moment, the cutting equipment does not run any more, and meanwhile, the possibility that people trapped in the elevator are transferred in time is also cut off, so that the people in the elevator are trapped for a long time to cause panic, the bearing of the people and objects in the elevator is larger than the lifting limit of the residual steel wire to cause further steel wire breakage, and the accidents are enlarged.
Therefore, a rope end tension detection mechanism and an elevator safety protection device capable of solving the above problems are urgently needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a rope end tensioning detection mechanism can detect out the tensile force of steel wire for judge steel wire fracture and bearing.
Another purpose of the utility model is to provide an elevator safety arrangement, not only the testing result is accurate, can in time shift personnel in the elevator when the occurence of failure, prevents the accident and enlarges.
In order to purposefully realize, the utility model discloses a fag end tensioning detection mechanism, including fag end frame, a plurality of with fag end subassembly and the annular pressure sensor that the steel wire corresponds, fag end subassembly is including fixed correspondence respectively a plurality of fag end spare and the elastic compression of steel wire are in correspondence spring part between fag end spare and the fag end frame, each annular pressure sensor encircles in corresponding on the steel wire and extruded in the tip of spring part, in order to detect the packing force of spring part is as the tensile force of steel wire.
Compared with the prior art, the utility model discloses locate the tip of spring part in the fag end subassembly with pressure sensor, judge the tensile force of steel wire through the packing force that detects the spring part, the judged result is accurate, and the tensile force of this steel wire can be used for judging whether the steel wire splits, can calculate the steel wire bearing. On the other hand, the utility model discloses an annular pressure sensor who encircles on the steel wire detects the packing force of spring part tip, prevents because the crooked inaccurate problem that causes of steel wire offset or tension angle.
Preferably, the spring element is a cylindrical spring surrounding the steel wire.
Preferably, said annular pressure sensor is sandwiched between said spring member and said cord mount.
The utility model also discloses an elevator safety arrangement, including detection module and control module, detection module is the tensile force of above-mentioned fag end tensioning detection mechanism and each steel wire of detection elevator, control module foundation the tensile force is judged whether the steel wire splits, and is arbitrary when the steel wire splits control the elevator continues to move and opens the lift-cabin door and the bring to rest after the flat bed nearby.
Compared with the prior art, the utility model discloses a fag end tensioning detection mechanism detects the steel wire tensile force in order to judge the fracture of steel wire tensioning, and the testing result is accurate. On the other hand, the utility model discloses a control module is not the emergency stop elevator operation when the steel wire fracture, not only can prevent that personnel from being stranded for a long time and causing the panic in the elevator, can in time open the lift-cabin door in the flat bed position nearby moreover and make personnel leave the elevator and subtract heavy to the elevator, prevents that the accident from further expanding safe and reliable. Furthermore, the utility model discloses a tensile force that detects the steel wire judges whether the steel wire splits, and the testing result is accurate, and can use same detection device with overload detection, simplifies the structure.
Preferably, the control module judges that the steel wire is broken when any tension is smaller than a first preset value so as to control the elevator to continuously operate to a nearby flat floor and then open the elevator door and stop operating.
Preferably, the control module also judges that the elevator is overloaded and controls the elevator to stop running when the tension of any steel wire exceeds a second preset value.
Preferably, the control module further comprises an alarm module, the detection module is a rope end tensioning bearing mechanism, the rope end tensioning bearing mechanism detects the tensioning force of each steel wire of the elevator, the control module further calculates the difference between the tensioning forces of every two steel wires, and controls the alarm to carry out risk alarm in the control center when the difference between the tensioning forces of the two steel wires is greater than a third preset value.
Preferably, the control module controls the elevator to stop running when the difference between the tension forces of two steel wires is greater than a fourth preset value, and the third preset value is smaller than the fourth preset value.
Preferably, the elevator safety protection device further comprises an alarm module, and the control module further gives a fault alarm to the inside of the elevator when any one steel wire is broken.
Drawings
Fig. 1 is a structural block diagram of the elevator safety protection device of the present invention.
Fig. 2 is the structure schematic diagram of the elevator safety protection device of the utility model.
Detailed Description
In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.
Referring to fig. 1 and 2, the utility model discloses an elevator safety arrangement 100, including detection module 10 and control module 20, detection module 10 detects the tensioning condition of each steel wire 30 of elevator, control module 20 basis the tensioning condition is judged whether steel wire 30 splits, and is arbitrary when steel wire 30 splits control the elevator continues to open the elevator door and stop the operation after going on to near flat bed. The near flat can be the flat closest to the current car or the flat closest to the current elevator running direction.
Referring to fig. 2, the detection module is a rope tensioning and bearing mechanism, the rope tensioning and bearing mechanism detects the tensioning force of each steel wire 30 of the elevator, and the control module 20 determines whether the steel wire 30 is broken according to the tensioning force, and controls the elevator to continue to operate to a near flat floor and then open the elevator door and stop operating when any one of the steel wires 30 is broken.
Specifically, the control module 20 determines that the steel wire 30 is broken when any tension is smaller than a first preset value, so as to control the elevator to continue to run to a nearby flat floor, open the elevator door and stop running. Specifically, the control box 21 generates a fracture signal when any tension is smaller than a first preset value, the elevator control system 22 generates a leveling in-place signal after the elevator continues to run to a leveling layer, and the elevator control system 22 controls the elevator door to open and controls the elevator to stop running according to the fracture signal and the leveling in-place signal. The present embodiment judges whether the steel wire 30 is broken or not by the tension of the steel wire 30.
Referring to fig. 2, the rope end tensioning and load bearing mechanism includes a rope head assembly 11, a plurality of rope head assemblies 12 corresponding to the steel wires 30, and annular pressure sensors 13, wherein the rope head assemblies 12 include rope head members 14 respectively fixing the corresponding steel wires 30, and spring members 15 elastically compressed between the rope head members 14 and the rope head assemblies 12, the steel wires 30 slide through holes of the rope head assembly 10 to fix the car of the elevator, the annular pressure sensors 13 correspond to the steel wires 30, and each annular pressure sensor 13 surrounds the corresponding steel wire 30 and is pressed against an end of the spring member 15 to detect a pressing force of the spring member 15 as a tensioning force of the steel wire 30. The spring member 15 is a cylindrical spring surrounding the wire 30.
In the present embodiment, the annular pressure sensor 13 is sandwiched between the spring member 15 and the string head frame 11, but the annular pressure sensor 13 may also be sandwiched between the spring member 15 and the string head member 14.
Referring to fig. 2, the control module 20 includes a control box 21 and an elevator control system 22, the control box 21 determines whether the steel wire 30 is broken according to the tension condition, and when any one of the steel wires 30 is broken, the elevator control system 22 outputs a breaking signal, and the elevator control system 22 controls the elevator to continue to run to the nearest leveling floor and then open the elevator door and stop running according to the breaking signal.
Specifically, the control box 21 of the control module 20 includes a first comparator, the first comparator compares the tension with a first preset value, and outputs a break signal to the elevator control system 22 when the tension is smaller than the first preset value, the elevator control system 22 includes an and operator, an input end of the and operator is connected with the break signal and the leveling in-place signal, and outputs an elevator door opening signal and an elevator shutdown signal when the break signal and the leveling in-place signal are obtained. The elevator control system 22 generates a leveling in-place signal when reaching a leveling level, opens the elevator door according to the elevator door opening signal, and stops running according to the elevator shutdown signal by the existing elevator control system 22. Of course, two control switches connected in series can be used instead of the and operator, and the two control switches are controlled by the fracture signal and the leveling in-place signal to be closed, so that the control branch is closed to output an elevator door opening signal and an elevator shutdown signal when the fracture signal and the leveling in-place signal are obtained. The nearest floor of this embodiment is the nearest floor in the current elevator travel direction.
Referring to fig. 1, the elevator safety protection device 100 further includes an alarm module 40, and the control module 20 also gives a fault alarm to the inside of the elevator when any one of the steel wires 30 is broken. The control module 20 also gives a corresponding alarm when the elevator is overloaded or has other faults.
Preferably, the control module 20 further determines that the elevator is overloaded and controls the elevator to stop running when the tension of any one of the steel wires 30 exceeds a second preset value, wherein the second preset value is greater than the first preset value. And the control module 20 judges that the elevator is overloaded when the tension of any steel wire 30 exceeds a second preset value. The control box 21 comprises a second comparator which compares the tension with a second preset value and generates an overload signal when the tension is greater than the second preset value, and the elevator control system 22 controls the elevator to stop according to the overload signal.
Of course, the control module 20 may also calculate the load of the elevator according to the tension of each steel wire 30, and determine whether the elevator exceeds the preset rated load, and if so, determine that the elevator is overloaded.
When the tension of any one of the steel wires 30 exceeds a second preset value, the control box 21 outputs an overload signal, the elevator control system 22 controls the elevator to stop running according to the overload signal, and controls the alarm module 40 to indicate overload in the elevator, so as to remind a user of losing weight, and the elevator automatically runs after the overload problem is solved.
Preferably, the tightness state of each elevator steel wire 30 is judged according to the numerical value of every annular pressure sensor 13 to the elevator and is carried out the elasticity adjustment to steel wire 30 during installation, avoids that the uneven atress of steel wire 30 leads to the elevator to tow the ability unsatisfied or because the uneven life-span of steel wire 30 rope of influence of steel wire 30 atress. In operation, the control module 20 further calculates a difference between the tension forces of every two steel wires 30, and controls the reporting module to perform a risk alarm in the control center when the difference between the tension forces of two steel wires 30 is greater than a third preset value, so as to indicate a tensioning risk. The control box 21 comprises a plurality of difference calculators and corresponding third comparators, the difference calculators are respectively arranged between the tension forces of the two steel wires 30 to calculate the difference between the tension forces of every two steel wires 30, the third comparators respectively compare the tension force difference with a third preset value, when the tension force difference between the two steel wires 30 is greater than the third preset value, a risk alarm signal is generated to the elevator control system 22, and the elevator control system 22 controls the alarm module 40 to alarm according to the risk alarm signal.
More preferably, the control module 20 also controls the elevator to stop operating when the difference between the tension forces of two of the steel wires 30 is greater than a fourth preset value. And the control module 20 judges the elevator fault when the difference between the tension forces of two steel wires 30 is greater than a fourth preset value. The fourth preset value is greater than the third preset value. The control box 21 includes a plurality of fourth comparators comparing the difference between the tensions with a fourth preset value, and generating a fault signal and a stop signal when the difference between the tensions of the two wires 30 is greater than the fourth preset value. The elevator control system 22 controls the alarm module 40 to alarm according to the fault signal.
The control box 21 calculates the difference between the tension forces of every two steel wires 30, and outputs a tension risk signal when the difference between the tension forces of two steel wires 30 is greater than a third preset value, and the elevator control system 22 controls the alarm module 40 to indicate the tension risk in the control center according to the tension risk signal so as to be maintained by a maintenance person, and at the moment, the elevator system still operates normally. The control box 21 outputs a tension fault signal when the tension difference between two steel wires 30 is greater than a fourth preset value, the elevator control system 22 controls the elevator to stop running according to the tension fault signal, and controls the alarm module 40 to alarm the tension fault in the elevator and the control center until maintenance personnel maintain the elevator.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, therefore, the invention is not limited thereto.
Claims (9)
1. The utility model provides a rope end tensioning detection mechanism which characterized in that: the rope head assembly comprises a plurality of rope head pieces and annular pressure sensors, the rope head pieces correspond to the steel wires, the rope head pieces respectively and fixedly correspond to the steel wires, the spring pieces are elastically compressed between the rope head pieces and the rope head frames, and each annular pressure sensor surrounds the corresponding steel wire and is extruded at the end part of the spring piece so as to detect pressing force of the spring piece as tension of the steel wires.
2. The rope end tension detecting mechanism according to claim 1, characterized in that: the spring part is a cylindrical spring surrounding the steel wire.
3. The rope end tension detecting mechanism according to claim 1, characterized in that: the annular pressure sensor is sandwiched between the spring member and the cord mount.
4. An elevator safety arrangement which characterized in that: the elevator rope tensioning detection mechanism comprises a detection module and a control module, wherein the detection module is used for detecting the tensioning force of each steel wire of the elevator according to the rope tensioning detection mechanism in any one of claims 1 to 3, the control module is used for judging whether the steel wires are broken according to the tensioning force, and when any steel wire is broken, the elevator is controlled to continue to run to a nearby flat floor, then an elevator door is opened, and the elevator stops running.
5. The elevator safety protection device of claim 4, wherein: the control module is used for giving a fault alarm in the elevator when any steel wire is broken.
6. The elevator safety protection device of claim 4, wherein: and the control module judges that the steel wire is broken when any tension is smaller than a first preset value so as to control the elevator to continuously operate to a nearby flat floor and then open the elevator door and stop operating.
7. The elevator safety protection device of claim 4, wherein: the control module also judges that the elevator is overloaded and controls the elevator to stop running when the tension of any steel wire exceeds a second preset value.
8. The elevator safety protection device of claim 4, wherein: the elevator safety monitoring system is characterized by further comprising an alarm module, the detection module is a rope end tensioning bearing mechanism, the rope end tensioning bearing mechanism detects the tensioning force of each steel wire of the elevator, the control module further calculates the difference of the tensioning forces of every two steel wires, and when the difference of the tensioning forces of the two steel wires is larger than a third preset value, the alarm is controlled to carry out risk alarm in the control center.
9. The elevator safety protection device of claim 8, wherein: and the control module controls the elevator to stop running when the tension difference of two steel wires is greater than a fourth preset value, and the third preset value is smaller than the fourth preset value.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921428581.3U CN211110506U (en) | 2019-08-29 | 2019-08-29 | Rope end tensioning detection mechanism and elevator safety protection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921428581.3U CN211110506U (en) | 2019-08-29 | 2019-08-29 | Rope end tensioning detection mechanism and elevator safety protection device |
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| CN211110506U true CN211110506U (en) | 2020-07-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110482364A (en) * | 2019-08-29 | 2019-11-22 | 快意电梯股份有限公司 | Rope end is tensioned testing agency and safety protection apparatus for elevator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110482364A (en) * | 2019-08-29 | 2019-11-22 | 快意电梯股份有限公司 | Rope end is tensioned testing agency and safety protection apparatus for elevator |
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