CN2809838Y - Limit switch for elevator with built-in spring - Google Patents
Limit switch for elevator with built-in spring Download PDFInfo
- Publication number
- CN2809838Y CN2809838Y CN 200520073597 CN200520073597U CN2809838Y CN 2809838 Y CN2809838 Y CN 2809838Y CN 200520073597 CN200520073597 CN 200520073597 CN 200520073597 U CN200520073597 U CN 200520073597U CN 2809838 Y CN2809838 Y CN 2809838Y
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- CN
- China
- Prior art keywords
- spring
- mentioned
- elevator
- twisting
- built
- 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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- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
The utility model discloses a limit switch for an elevator with a built-in spring, which comprises a shell, an external conductor holder, a twisting wheel, a twisting shaft, a twisting rod, an offsetting spring, static contact, and a moving contact, wherein the twisting shaft is arranged in the shell, the twisting rod is fixedly arranged on the twisting shaft, one end of the twisting rod is provided with the twisting wheel and the static contact is fixedly arranged in the shell and connected with the external conductor holder. The utility model has the differences that a spring holder is arranged in the shell, the twisting shaft is fixedly provided with a moving holder of the spring, the offsetting spring is arranged between the spring holder and the moving holder of the spring and the moving contact is fixed on the moving holder of the spring. After the limit switch for an elevator with a built-in spring is vibrated, a torsion spring has little possibility of shedding, the limit switch for an elevator with a built-in spring has long service life, and the safety and the reliability of running the elevator can be enhanced.
Description
Technical field
The utility model relates to a kind of lead limit switch that is used for object is carried out spacing control, specifically relates to the elevator limit switch of terminal up and down.
Background technology
The limit switch of terminal is mainly used in the control and the signal prompt of elevator car arrives position in the running process of elevator about the elevator, and detected signal sent into the elevator operation controller, the signal that the elevator operation controller provides according to this spacing control switch, the line speed control of going forward side by side of the running status of judging car, guaranteed that car is when moving to well pit or arriving well headroom thereby make, before the conversion operation direction, obtain buffering, make lift car that the danger of squatting the end or rushing to summit can not take place because of the speed of service is too high.Existing elevator its back-moving spring of limit switch of terminal up and down is an external, is vibrated in running process of elevator, and back-moving spring easily comes off, and causes danger.
Summary of the invention
The utility model technical issues that need to address are to overcome the existing deficiency of existing travel switch, a kind of built-in spring elevator-distance switch rational in infrastructure is provided, the trip construction of switch is reasonable, is not subjected to the vibration effect in the cage operation process of elevator, elevator operation safe, reliable.
The technical scheme in the invention for solving the technical problem is: a kind of built-in spring elevator-distance switch, it comprises housing, the external connection seat, the twisting wheel, the twisting axle, torsional pole, back-moving spring, fixed contact, moving contact, above-mentioned twisting axle places in the housing, above-mentioned torsional pole is installed on the twisting axle, above-mentioned torsional pole one end is equipped with the twisting wheel, above-mentioned fixed contact is installed in the housing and joins with above-mentioned external connection seat, difference is, above-mentioned housing is built-in with spring base, be fixed with the spring sliding seat on the above-mentioned twisting axle, above-mentioned back-moving spring places between above-mentioned spring base and the spring sliding seat, and above-mentioned moving contact is installed on the above-mentioned spring sliding seat.
Be equipped with spacer pin on the above-mentioned housing.
Cavity on the above-mentioned spring base is flat cavity.
The advantage that built-in spring elevator-distance switch of the present utility model has compared with prior art is as follows:
This built-in spring elevator-distance switch is built in back-moving spring in the housing, after being vibrated, and the back-moving spring difficult drop-off, long service life has improved the fail safe and the reliability of elevator operation.
Description of drawings
Fig. 1 is the structural representation of the utility model built-in spring elevator-distance switch.
Embodiment
Below in conjunction with accompanying drawing the utility model built-in spring elevator-distance switch is further described.
Above-mentioned as shown in Figure 1 built-in spring elevator-distance switch, a kind of built-in spring elevator-distance switch, it comprises housing 1, external connection seat 2, twisting wheel 3, twisting axle 4, torsional pole 5, back-moving spring 6, fixed contact 7, moving contact 8, above-mentioned twisting axle 4 places in the housing 1, above-mentioned torsional pole 5 is installed on the twisting axle 4, above-mentioned torsional pole 5 one ends are equipped with twisting wheel 3, above-mentioned fixed contact 7 is installed in the housing 1, difference is that above-mentioned housing 1 is built-in with spring base 9, is fixed with spring sliding seat 10 on the above-mentioned twisting axle 4, above-mentioned back-moving spring 6 places between above-mentioned spring base 9 and the spring sliding seat 10, and above-mentioned moving contact 8 is installed on the above-mentioned spring sliding seat 10; Be equipped with spacer pin 11 on the above-mentioned housing 1; Cavity on the above-mentioned spring base 9 is flat cavity.
Claims (3)
1, a kind of built-in spring elevator-distance switch, it comprises housing (1), external connection seat (2), twisting wheel (3), twisting axle (4), torsional pole (5), back-moving spring (6), fixed contact (7), moving contact (8), above-mentioned twisting axle (4) places in the housing (1), above-mentioned torsional pole (5) is installed on the twisting axle (4), above-mentioned torsional pole (5) one ends are equipped with twisting wheel (3), above-mentioned fixed contact (7) is installed in the housing (1), it is characterized in that: above-mentioned housing (1) is built-in with spring base (9), be fixed with spring sliding seat (10) on the above-mentioned twisting axle (4), above-mentioned back-moving spring (6) places between above-mentioned spring base (9) and the spring sliding seat (10), and above-mentioned moving contact (8) is installed on the above-mentioned spring sliding seat (10).
2, built-in spring elevator-distance switch according to claim 1 is characterized in that: be equipped with spacer pin (11) on the above-mentioned housing (1).
3, built-in spring elevator-distance switch according to claim 1 is characterized in that: the cavity on the above-mentioned spring base (9) is flat cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520073597 CN2809838Y (en) | 2005-07-14 | 2005-07-14 | Limit switch for elevator with built-in spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520073597 CN2809838Y (en) | 2005-07-14 | 2005-07-14 | Limit switch for elevator with built-in spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2809838Y true CN2809838Y (en) | 2006-08-23 |
Family
ID=36926023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520073597 Expired - Fee Related CN2809838Y (en) | 2005-07-14 | 2005-07-14 | Limit switch for elevator with built-in spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2809838Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105489409A (en) * | 2016-01-14 | 2016-04-13 | 上海华晟电器有限公司 | Novel elevator limit switch device |
-
2005
- 2005-07-14 CN CN 200520073597 patent/CN2809838Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105489409A (en) * | 2016-01-14 | 2016-04-13 | 上海华晟电器有限公司 | Novel elevator limit switch device |
| CN105489409B (en) * | 2016-01-14 | 2018-10-12 | 上海华晟电器有限公司 | A kind of novel elevator-distance switch device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |