CN203033589U - Elevator overload protection device - Google Patents
Elevator overload protection device Download PDFInfo
- Publication number
- CN203033589U CN203033589U CN 201320036961 CN201320036961U CN203033589U CN 203033589 U CN203033589 U CN 203033589U CN 201320036961 CN201320036961 CN 201320036961 CN 201320036961 U CN201320036961 U CN 201320036961U CN 203033589 U CN203033589 U CN 203033589U
- Authority
- CN
- China
- Prior art keywords
- elevator
- protection device
- overload protection
- limit switch
- car frame
- 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.)
- Expired - Fee Related
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- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
Abstract
The utility model discloses an elevator overload protection device. The elevator overload protection device comprises a lift car frame (1), wherein rubber gaskets (2) and a limit switch (3) are correspondingly arranged on a base plate of the lift car frame (1). A movable lift car body (4) is arranged on the rubber gaskets (2), and the limit switch (3) is connected with a sound-light alarming device (8). A light source (5) and a photoelectric sensor (6) which is connected with a main engine are correspondingly arranged on two sides of the lift car frame (1). According to the elevator overload protection device, overload of an elevator is monitored respectively by the limit switch and the photoelectric sensor in an independent mode, the overload of the elevator can be monitored as long as one of the limit switch and the photoelectric sensor works normally, so that reliability is enabled to be high. The elevator overload protection device further has the advantages of being simple in structure and low in cost.
Description
Technical field
The utility model relates to a kind of elevator overload protection device, belongs to elevator Safety Technology for Industry field.
Background technology
Along with the development of national economy society, elevator has obtained using widely in various buildings.But the elevator safety problem is taken elevator to people and is impacted.
At present, the elevator overload protection device reliability on the elevator is low, and the defective that existence may be broken down in case the elevator overload protection device breaks down, can not detect the overload situation of elevator, greatly reduce the safety of taking elevator.
The utility model content
The purpose of this utility model is, a kind of elevator overload protection device is provided.The utlity model has the high advantage of reliability, and the utlity model has the structure letter, characteristics with low cost.
The technical solution of the utility model: a kind of elevator overload protection device comprises car frame; Correspondence is provided with rubber pad and limit switch on the described car frame chassis, and the rubber pad top is provided with movable car cab, and limit switch is connected with acoustic-optic alarm; The both sides correspondence of described car frame is provided with light source and the opto-electronic pickup that is connected with main frame.
In the aforesaid elevator overload protection device, described opto-electronic pickup also is connected with microcontroller, and microcontroller is connected with acoustic-optic alarm.
In the aforesaid elevator overload protection device, described microcontroller is the AT89C51 micro controller system.
Compared with prior art, the utility model needs only limit switch and one of them normal operation of opto-electronic pickup by limit switch and the opto-electronic pickup overload of independent monitoring elevator respectively, just can monitor out the overload of elevator, makes reliability higher; And the utility model also has characteristics simple in structure, with low cost.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the utility model electrical principle scheme drawing.
Being labeled as in the accompanying drawing: 1-car frame, 2-rubber pad, 3-limit switch, the movable car cab of 4-, 5-light source, 6-opto-electronic pickup, 7-microcontroller, 8-acoustic-optic alarm.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described, but not as the foundation to the utility model restriction.
Embodiment.A kind of elevator overload protection device as depicted in figs. 1 and 2, comprises car frame 1; Correspondence is provided with rubber pad 2 and limit switch 3 on described car frame 1 chassis, and rubber pad 2 tops are provided with movable car cab 4, and limit switch 3 is connected with acoustic-optic alarm 8; The both sides correspondence of described car frame 1 is provided with light source 5 and the opto-electronic pickup 6 that is connected with main frame.Described opto-electronic pickup 6 also is connected with microcontroller 7, and microcontroller 7 is connected with acoustic-optic alarm 8.Described microcontroller 7 is the AT89C51 micro controller system.
Principle of work of the present utility model: during the elevator overload, movable car cab 4 touches limit switch 3, connect acoustic-optic alarm 8, produce sound and light alarm, the overload of prompting elevator, simultaneously, opto-electronic pickup 6 receives optical signal, converts optical signal to electric signal, and sends main frame and microcontroller 7 respectively to, the host computer control elevator door can not cut out, elevator can't move, and microcontroller 7 drives acoustic-optic alarm 8, and (acoustic-optic alarm 8 is by limit switch 3 and microcontroller 7 independent controls to produce sound and light alarm, as long as wherein a loop is normal, with regard to the energy normal operation).
Claims (3)
1. an elevator overload protection device is characterized in that: comprise car frame (1); Correspondence is provided with rubber pad (2) and limit switch (3) on described car frame (1) chassis, and rubber pad (2) top is provided with movable car cab (4), and limit switch (3) is connected with acoustic-optic alarm (8); The both sides correspondence of described car frame (1) is provided with light source (5) and the opto-electronic pickup that is connected with main frame (6).
2. elevator overload protection device according to claim 1 is characterized in that: described opto-electronic pickup (6), also be connected with microcontroller (7), and microcontroller (7) is connected with acoustic-optic alarm (8).
3. elevator overload protection device according to claim 2, it is characterized in that: described microcontroller (7) is the AT89C51 micro controller system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320036961 CN203033589U (en) | 2013-01-22 | 2013-01-22 | Elevator overload protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320036961 CN203033589U (en) | 2013-01-22 | 2013-01-22 | Elevator overload protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203033589U true CN203033589U (en) | 2013-07-03 |
Family
ID=48685726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320036961 Expired - Fee Related CN203033589U (en) | 2013-01-22 | 2013-01-22 | Elevator overload protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203033589U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105060059A (en) * | 2015-07-28 | 2015-11-18 | 海安县申菱电器制造有限公司 | Elevator weighing device |
-
2013
- 2013-01-22 CN CN 201320036961 patent/CN203033589U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105060059A (en) * | 2015-07-28 | 2015-11-18 | 海安县申菱电器制造有限公司 | Elevator weighing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130703 Termination date: 20200122 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |