CN202936051U - Elevator hoist rope extension protection structure - Google Patents
Elevator hoist rope extension protection structure Download PDFInfo
- Publication number
- CN202936051U CN202936051U CN 201220612480 CN201220612480U CN202936051U CN 202936051 U CN202936051 U CN 202936051U CN 201220612480 CN201220612480 CN 201220612480 CN 201220612480 U CN201220612480 U CN 201220612480U CN 202936051 U CN202936051 U CN 202936051U
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- CN
- China
- Prior art keywords
- elevator
- counterweight
- position switch
- hoist ropes
- lower position
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The utility model discloses an elevator hoist rope extension protection structure which comprises a hoist rope, a counterpoise that can be driven to go up and down by the hoist rope and a counterpoise side buffer arranged on a bottom pit of an elevator. The elevator hoist rope extension protection structure also comprises an upper limiting switch and a lower limiting switch arranged in a shaft of the elevator and a switch panel arranged outside the counterpoise, wherein the upper limiting switch and/or the lower limiting switch are/is connected in series in a control loop of the elevator. The switch panel on the counterpoise does not act with the lower limiting switch when the hoist rope is normal (namely without excessive extension), and acts with the upper limiting switch each time when the upper limiting switch reaches the top layer; and at the time, the control loop of the elevator is on, and the operation of the elevator is not influenced. In the case of excessive extension of the hoist rope, the lower limiting switch acts while the upper limiting switch does not act, the control loop of the elevator is turned off, and the elevator stops operation so as to fundamentally avoid elevator accident caused by excessive extension of the hoist rope and prevent touch on the counterpoise side buffer.
Description
Technical field
the utility model relates to a kind of elevator rope extensive protection structure.
Background technology
be installed on the elevator of sealing in hoistway when just place in operation, the extension of hoist ropes is a problem that relatively perplexs the repair and maintenance personnel.As everyone knows, the extension of hoist ropes there is no impact to cage side, because elevator landing appts is arranged, stop terraced car all can flush with landing sill at every turn, so for whole hoist ropes, its extension finally all can embody between counterweight and counterweight side buffer, and the extension of hoist ropes is larger, and the distance between counterweight and counterweight side buffer is just less.Especially the elevator of large hoisting depth or large wiring than the elevator of (traction ratio) in, the extension of hoist ropes should cause enough attention.Generally, new terraced place in operation all must carry out the correction of hoist ropes length after a period of time, orthodox method is observed or relies on the experience of self to judge whether to be proofreaied and correct in hoistway by the repair and maintenance personnel, the method human element is too many, can not fundamentally solve excessive extension because of hoist ropes and cause the counterweight side buffer to be collided triggering the elevator accident caused.
Summary of the invention
the purpose of this utility model is to provide a kind of elevator rope extensive protection structure, once hoist ropes excessively extends, by upper limit position switch or lower position switch, disconnects the control loop of elevator, forbids the elevator operation, and avoids the counterweight side buffer to be touched.
for achieving the above object, the technical solution adopted in the utility model is: a kind of elevator rope extensive protection structure, comprise hoist ropes, can be driven by described hoist ropes the counterweight of lifting, be arranged on the counterweight side buffer on the pit of elevator, described hoist ropes extensive protection structure also comprises upper limit position switch and the lower position switch in the hoistway that is arranged on elevator, be arranged on the key-board of described counterweight outside, described upper limit position switch and/or described lower position switch string are in the control loop of elevator, described hoist ropes has normal condition and excessive extension state, when this hoist ropes during in normal condition, and described counterweight drops to extreme lower position, described key-board does not touch described lower position switch, described counterweight does not touch described counterweight side buffer, when described hoist ropes during in normal condition, and described counterweight rises to extreme higher position, and described key-board touches described upper limit position switch, when described hoist ropes during in excessive extension state, and described counterweight drops to extreme lower position, and described key-board touches described lower position switch, and described counterweight does not touch described counterweight side buffer, when described hoist ropes during in excessive extension state, and described counterweight rises to extreme higher position, and described key-board does not touch described upper limit position switch, when described hoist ropes, during in excessive extension state, the control loop of described elevator disconnects.
during concrete enforcement, the shell of described upper limit position switch and described lower position switch all is fixed on the guide rail in described hoistway.
utilization due to technique scheme; the utility model compared with prior art has following advantages: in this elevator rope extensive protection structure; key-board on counterweight is (while not occurring excessively to extend) when hoist ropes is normal; should with the lower position switch attonity; while with upper limit position switch, arriving top layer, all should move at every turn; now the control loop of elevator leads to, and does not affect the operation of elevator.After hoist ropes occurs excessively to extend; lower position switch should move; and upper limit position switch is failure to actuate; the control loop of elevator disconnects; stop the elevator operation; this elevator rope extensive protection structure has fundamentally been avoided, because hoist ropes excessively extends the elevator accident caused, avoiding the counterweight side buffer to be touched.
The accompanying drawing explanation
accompanying drawing 1 is schematic diagram one of the present utility model, and wherein counterweight rises to extreme higher position, and the key-board on counterweight touches upper limit position switch, shows that hoist ropes is in normal condition;
accompanying drawing 2 is schematic diagram two of the present utility model, and wherein counterweight drops to extreme lower position, and the key-board on counterweight does not touch lower position switch, also shows that hoist ropes is in normal condition;
accompanying drawing 3 is the schematic diagram that in the utility model, the key-board on counterweight touches lower position switch, and now counterweight drops to extreme lower position, shows that hoist ropes is in excessive extension state;
accompanying drawing 4 is the schematic diagram that in the utility model, the key-board on counterweight does not touch upper limit position switch, and now counterweight rises to extreme higher position, also shows that hoist ropes is in excessive extension state.
The specific embodiment
further set forth structure of the present utility model below in conjunction with accompanying drawing.
shown in Fig. 1-4; a kind of elevator rope extensive protection structure; comprise hoist ropes 1, car 8, counterweight 4, be arranged on counterweight side buffer 6 on the pit of elevator, be fixed on upper limit position switch 3 and lower position switch 5 in the hoistway of elevator by cage guide, be arranged on the key-board 2 of counterweight 4 outsides; upper limit position switch 3 and/or lower position switch 5 strings, in the control loop of elevator, are controlled the break-make of control loop.In Fig. 1-2, the traction ratio of elevator is 2:1, specifically, one end of hoist ropes 1 is fixed, and after then walking around the rope sheave 7 of counterweight 4 downwards, more upwards walks around the traction sheave 9 of towing machine, then walk around again the rope sheave 10 of car 8 downwards, finally fix the other end of hoist ropes 1.Traction sheave 9 drives hoist ropes 1 to move, thereby carries out lifting with car 8, counterweight 4.Hoist ropes 1 has normal condition and excessive extension state, when this hoist ropes 1, during in normal condition, allows elevator normally to move; During in excessive extension state, disconnect the control loop of elevator when hoist ropes 1, forbid the elevator operation.Specifically, at hoist ropes 1 during in normal condition, and counterweight 4 drops to extreme lower position, and as shown in Figure 2, key-board 2 does not touch to lower position switch 5, and counterweight 4 does not touch counterweight side buffer 6; When hoist ropes 1 during in normal condition, and counterweight 4 rises to extreme higher position, and as shown in Figure 1, key-board 2 touches to upper limit position switch 3; That is to say, when elevator moves, when the key-board 2 on counterweight 4 does not occur excessively to extend at hoist ropes 1, should with lower position switch 5 attonitys, while with upper limit position switch 3 is each, arriving top layer, all should move, now the control loop of elevator leads to, and does not affect the operation of elevator.When hoist ropes 1 during in excessive extension state, and counterweight 4 drops to extreme lower position, and key-board 2 touches to lower position switch 5, and as shown in Figure 3, now counterweight 4 does not touch counterweight side buffer 6 yet; When hoist ropes 1 during in excessive extension state, and counterweight 4 rises to extreme higher position, and key-board 2 does not touch to upper limit position switch 3, as shown in Figure 4; When hoist ropes 1, during in excessive extension state, the control loop of elevator disconnects, and stops the elevator operation, and reports an error; That is to say, after hoist ropes 1 occurs excessively to extend, lower position switch 5 should move, and upper limit position switch 3 should be failure to actuate.Can make elevator stop the normal switch used can be only both that lower position switch 5 can be also only upper limit position switch 3, can also be the situation of bound bit switch 3 and 5 combinations.
to sum up, heavy side hoistway top, bottom are being arranged to upper limit position switch 3, lower position switch 5.When elevator normally moves to minimum stop, there is certain distance between lower position switch 5 and key-board 2, now smallest limit switch 5 is failure to actuate; When elevator normally moves to top station, upper limit position switch 3 should contact with key-board 2, upper limit position switch 3 actions.After elevator generation hoist ropes 1 excessively extends, if counterweight 4 when extreme lower position, lower position switch 5 should move; If counterweight 4 is when top station, upper limit position switch should be failure to actuate.In the control loop of upper limit position switch 3 and/or lower position switch 5 access elevators; after if the excessive extension of hoist ropes 1 occurs; by elevator, controlling mainboard is reported an error; stopping elevator normally using; and remind on-the-spot repair and maintenance personnel to carry out the correction of hoist ropes length; this elevator rope extensive protection structure has fundamentally solved because hoist ropes excessively extends the elevator accident caused, avoids the counterweight side buffer to be touched.
Claims (2)
1. an elevator rope extensive protection structure, comprise hoist ropes, can be driven by described hoist ropes the counterweight of lifting, be arranged on the counterweight side buffer on the pit of elevator, it is characterized in that: described hoist ropes extensive protection structure also comprises upper limit position switch and the lower position switch in the hoistway that is arranged on elevator, be arranged on the key-board of described counterweight outside, described upper limit position switch and/or described lower position switch string are in the control loop of elevator, described hoist ropes has normal condition and excessive extension state, when this hoist ropes during in normal condition, and described counterweight drops to extreme lower position, described key-board does not touch described lower position switch, described counterweight does not touch described counterweight side buffer, when described hoist ropes during in normal condition, and described counterweight rises to extreme higher position, and described key-board touches described upper limit position switch, when described hoist ropes during in excessive extension state, and described counterweight drops to extreme lower position, and described key-board touches described lower position switch, and described counterweight does not touch described counterweight side buffer, when described hoist ropes during in excessive extension state, and described counterweight rises to extreme higher position, and described key-board does not touch described upper limit position switch, when described hoist ropes, during in excessive extension state, the control loop of described elevator disconnects.
2. a kind of elevator rope extensive protection structure according to claim 1, it is characterized in that: the shell of described upper limit position switch and described lower position switch all is fixed on the guide rail in described hoistway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220612480 CN202936051U (en) | 2012-11-19 | 2012-11-19 | Elevator hoist rope extension protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220612480 CN202936051U (en) | 2012-11-19 | 2012-11-19 | Elevator hoist rope extension protection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202936051U true CN202936051U (en) | 2013-05-15 |
Family
ID=48320303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220612480 Withdrawn - After Issue CN202936051U (en) | 2012-11-19 | 2012-11-19 | Elevator hoist rope extension protection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202936051U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103086221A (en) * | 2012-11-19 | 2013-05-08 | 江南嘉捷电梯股份有限公司 | Extension protecting structure for hoisting rope of elevator |
| CN112897271A (en) * | 2021-02-07 | 2021-06-04 | 菱王电梯有限公司 | Elevator counterweight safety protection device and control method thereof |
-
2012
- 2012-11-19 CN CN 201220612480 patent/CN202936051U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103086221A (en) * | 2012-11-19 | 2013-05-08 | 江南嘉捷电梯股份有限公司 | Extension protecting structure for hoisting rope of elevator |
| CN103086221B (en) * | 2012-11-19 | 2015-04-08 | 江南嘉捷电梯股份有限公司 | Extension protecting structure for hoisting rope of elevator |
| CN112897271A (en) * | 2021-02-07 | 2021-06-04 | 菱王电梯有限公司 | Elevator counterweight safety protection device and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130515 Effective date of abandoning: 20150408 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20130515 Effective date of abandoning: 20150408 |
|
| RGAV | Abandon patent right to avoid regrant |