CN203959564U - A kind of auto-cutout device - Google Patents
A kind of auto-cutout device Download PDFInfo
- Publication number
- CN203959564U CN203959564U CN201420309111.6U CN201420309111U CN203959564U CN 203959564 U CN203959564 U CN 203959564U CN 201420309111 U CN201420309111 U CN 201420309111U CN 203959564 U CN203959564 U CN 203959564U
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- Prior art keywords
- relay
- loop
- auto
- normally open
- open contact
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- Expired - Fee Related
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- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The utility model discloses a kind of auto-cutout device, comprising: primary loop, secondary circuit and manual control loop, primary loop is in series by main limit, the normally open contact of relay BJ2, the resistance R of voltage transformer T; The secondary of secondary returning routing transformer T, signal head, relay AJ1 are in series; Manually control loop is in series by the normally open contact of power supply DC, relay BJ2 and relay AJ1, and button AN is in parallel with the normally open contact of relay AJ1.This loop structure is simple, is easy to set up, and cost is low, has but ensured to a great extent equipment and personnel's safety.
Description
Technical field
The utility model relates to elevator safety field, specifically relates to a kind of auto-cutout device.
Background technology
Elevator debugging initial stage or elevator are normal use after, gate interlock disconnects because of fault, for convenient for maintaining, on-the-spot installation and the conventionally direct short circuit gate interlock of repair and maintenance personnel loop moved elevator under a non-security state; Like this, if after fault is got rid of or safeguarded and finish, when " maintenance " turns " automatically " state, forget the shorting stub of dismantling, with regard to causing possibly door-opened elevator to move, cause the injury to equipment or personnel.
China Patent Publication No. CN102424317A discloses a kind of door interlock short-circuit protection loop for elevator, if after maintenance finishes because of maloperation or forget the shorting stub of dismantling, make described gate interlock loop still keep short circuit state, recover after " automatically " state at elevator, machine room inspection switch is all closed, because described relief relay control the closed of described relief relay switch or disconnects, therefore, in short circuit gate interlock loop, while connection with wire by short unit two ends, relief relay is in obtaining electric conducting state, controlling described relief relay switch disconnects, described gate interlock relay and loop are disconnected, cause the gate interlock relay dead electricity that remains unchanged, thereby make elevator out of service.Although this short circuit loop has solved the danger of door-opened elevator operation, make the normal operation of elevator just require professional repair and maintenance personnel must remove shorting stub, cumbersome.
Utility model content
For overcoming the deficiency existing in existing short-circuit protection loop; the utility model provides a kind of novel auto-cutout device; this auto-cutout device can play short circuit protection in maintenance, can not produce any impact to elevator " automatically " operation even if forget after maintenance well to take off also.
The utility model is achieved by following technical solution.
A kind of auto-cutout device, comprising: automatic control loop and manually control loop, it is characterized in that: automatic control loop comprises primary loop and secondary circuit, and primary loop is in series by main limit, the normally open contact of relay B, the resistance of voltage transformer; The secondary of secondary returning routing transformer, signal head, relay A are in series; Manually control loop is in series by the normally open contact of power supply, relay B and relay A, and button is in parallel with the normally open contact of relay A.
Described signal head is indicator lamp or buzzer phone.
Described signal head is indicator lamp and buzzer phone combination.
The beneficial effects of the utility model are: this auto-cutout device can automatically disconnect after primary circuit is switched on; And in this auto-cutout device, be also provided with signal head and point out by short-circuit and whether be switched on, conveniently check.Due to primary circuit be switched on after this device just automatically in off state, even if so elevator reparing completes and forgets and take off this device, also can ensure elevator safe operation under " automatically " state, this loop structure is simple, be easy to set up, cost is low, has but ensured to a great extent equipment and personnel's safety.
Brief description of the drawings
Fig. 1 is the schematic diagram of the utility model automatic control loop embodiment mono-;
Fig. 2 is the schematic diagram of the manual control loop of the utility model;
Fig. 3 is the schematic diagram of the utility model automatic control loop embodiment bis-.
Detailed description of the invention
Further describe the technical solution of the utility model below in conjunction with accompanying drawing, but described in claimed scope is not limited to.
Embodiment mono-:
A kind of auto-cutout device as depicted in figs. 1 and 2, comprise: automatic control loop and manually control loop, it is characterized in that: automatic control loop comprises primary loop and secondary circuit, primary loop is in series by main limit, the normally open contact of relay BJ2, the resistance R of voltage transformer T; Secondary, indicator lamp JD or the buzzer phone FM of secondary returning routing transformer T, relay AJ1 are in series; Manually control loop is in series by the normally open contact of power supply DC, relay BJ2 and relay AJ1, and button AN is in parallel with the normally open contact of relay AJ1.
Use indicator lamp JD or buzzer phone FM as signal head, can allow service personnel according to the piping of the state of indicator lamp JD or indicator lamp FM, directly whether decision circuitry fault section A connects.
When maintenance, auto-cutout device short circuit is held in O, the P of fault part A, XZ switch can be selected to be placed in indicator lamp JD shelves or buzzing shelves, press the button AN in manual control loop, relay BJ2 obtains electric, the normally open contact closure of relay BJ2 in primary loop simultaneously, primary loop is switched on.After primary loop is switched on, the secondary of the voltage transformer T in secondary circuit produces induction electricity, and the bright or indicator lamp FM of indicator lamp JD pipes, and relay AJ1 obtains electric; The simultaneously manually normally open contact closure of control loop repeat circuit AJ1, whole auto-cutout device before service personnel service work completes in normal working.
After having overhauled, fault part A is switched on, and in primary loop, owing to there being the existence of resistance R not have electric current to pass through, voltage transformer T secondary can not produce induction electricity, relay AJ1 dead electricity, and indicator lamp JD extinguishes or indicator lamp FM stops piping.Manually the normally open contact of control loop repeat circuit AJ1 disconnects, relay BJ2 dead electricity, and whole auto-cutout device is immediately in out-of-run state, on also not produced any impact by maintenance circuit.Therefore, service personnel is after maintenance completes, even if forget and take off this auto-cutout device, elevator also can normally move.
Embodiment bis-:
As shown in Figure 3, be only secondary circuit part with the difference of embodiment mono-, in this embodiment, signal head is by being serially connected with between the secondary and relay AJ1 of voltage transformer T in secondary circuit after indicator lamp JD and indicator lamp FM parallel connection.
Use indicator lamp JD and indicator lamp FM as signal head simultaneously, can allow service personnel according to the piping of the state of indicator lamp JD and indicator lamp FM, directly whether decision circuitry fault section A connects.Use the benefit of indicator lamp JD and indicator lamp FM to be: if a kind of et out of order in these two kinds of signal heads, the signal that can also send according to another judges simultaneously.Be that signal transmission more has accurately, be more conducive to service personnel decision circuitry fault section A and whether connect.
Claims (3)
1. an auto-cutout device, comprise: automatic control loop and manually control loop, it is characterized in that: automatic control loop comprises primary loop and secondary circuit, primary loop is in series by main limit, the normally open contact of relay B (J2), the resistance (R) of voltage transformer (T); The secondary of secondary returning routing transformer (T), signal head, relay A (J1) are in series; Manually control loop is in series by the normally open contact of power supply (DC), relay B (J2) and relay A (J1), and button (AN) is in parallel with the normally open contact of relay A (J1).
2. a kind of auto-cutout device according to claim 1, is characterized in that: described signal head is indicator lamp (JD) or buzzer phone (FM).
3. a kind of auto-cutout device according to claim 1, is characterized in that: described signal head is the combination of indicator lamp (JD) and buzzer phone (FM).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420309111.6U CN203959564U (en) | 2014-06-11 | 2014-06-11 | A kind of auto-cutout device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420309111.6U CN203959564U (en) | 2014-06-11 | 2014-06-11 | A kind of auto-cutout device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203959564U true CN203959564U (en) | 2014-11-26 |
Family
ID=51920175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420309111.6U Expired - Fee Related CN203959564U (en) | 2014-06-11 | 2014-06-11 | A kind of auto-cutout device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203959564U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105226609A (en) * | 2015-10-28 | 2016-01-06 | 大连罗宾森电源设备有限公司 | The safeguard protection of a kind of charger door opening electrical outage |
-
2014
- 2014-06-11 CN CN201420309111.6U patent/CN203959564U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105226609A (en) * | 2015-10-28 | 2016-01-06 | 大连罗宾森电源设备有限公司 | The safeguard protection of a kind of charger door opening electrical outage |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141126 |