CN215922023U - Interlocking control and alarm device for returning and locking of movable ladder - Google Patents
Interlocking control and alarm device for returning and locking of movable ladder Download PDFInfo
- Publication number
- CN215922023U CN215922023U CN202121830265.6U CN202121830265U CN215922023U CN 215922023 U CN215922023 U CN 215922023U CN 202121830265 U CN202121830265 U CN 202121830265U CN 215922023 U CN215922023 U CN 215922023U
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- locking
- movable ladder
- proximity switch
- movable
- induction plate
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Abstract
The utility model relates to an intrinsic safety protection system for dangerous chemical loading and unloading, in particular to a linkage control and alarm device for the homing and locking of a movable ladder. The locking mechanism comprises a movable ladder movable support and a movable ladder fixed support, wherein a proximity switch I is fixedly arranged on the movable ladder fixed support, an induction plate is fixedly arranged on one side of the movable ladder movable support, a locking induction plate is fixedly arranged on the other side of the movable ladder movable support, a proximity switch II is fixedly arranged on the locking induction plate, a locking pin is arranged on the movable ladder fixed support on one side of the locking induction plate, and a locking mechanism is arranged on the upper part of the locking pin; the proximity switch I, the proximity switch II and the locking mechanism are electrically connected with the main controller, and the main controller is electrically connected with the audible and visual alarm. Through the multi-sensor detection of the proximity switch I and the proximity switch II, the condition that a single sensor is lack of detection signals due to reasons such as faults can be avoided, and the position detection device of the locking pin can accurately reflect whether the locking pin really plays a locking effect.
Description
Technical Field
The utility model relates to an intrinsic safety protection system for dangerous chemical loading and unloading, in particular to a linkage control and alarm device for the homing and locking of a movable ladder.
Background
Along with the gradual improvement of intrinsic safety, safety risk management in the operation process is combined, the loading and unloading control mode of hazardous chemicals is changed from manual operation into intelligent quantitative loading and unloading, and the safety protection is changed from a single control mode into an integrated linkage mode. The requirements of people on the equipment or the intrinsic safety of the equipment reach a certain height.
However, "unsafe behavior of human (operation is not standardized)" in actual work is a short board which restricts loading and unloading of intrinsic safety, and particularly, the operation is not performed according to the regulations: the worker does not pay attention to or other human factors interfere more, so that the human body is injured and accidents happen.
After the operation of an operator is finished, the operator forgets to take up the movable ladder or does not take the movable ladder in place, or does not return to the original position and lock after the movable ladder is taken up, so that the movable ladder can be opened at will, or the movable ladder is abnormally opened after the movable ladder returns to the original position and lock, so that the movable ladder collides with a tank car, the movable ladder and a platform are damaged, the movable ladder is roughly rubbed to catch fire and explode, and the operator can fall from the high altitude.
Disclosure of Invention
The utility model aims to provide a linkage control and alarm device for the homing and locking of a movable ladder, which can realize warning (early warning) prompt and safe linkage operation, further standardize and improve the essential safety of loading and unloading operation, particularly improve the safety and standard consciousness of drivers and field operation personnel and reduce the misoperation of the personnel.
In order to achieve the purpose, the utility model adopts the technical scheme that:
a linkage control and alarm device for the homing and locking of a movable ladder comprises a movable support of the movable ladder and a fixed support of the movable ladder, wherein a proximity switch I is fixedly arranged on the fixed support of the movable ladder, an induction plate is fixedly arranged on one side of the movable support of the movable ladder, a locking induction plate is fixedly arranged on the other side of the movable support of the movable ladder, a proximity switch II is fixedly arranged on the locking induction plate, a locking pin is arranged on the fixed support of the movable ladder on one side of the locking induction plate, and a locking mechanism is arranged on the upper part of the locking pin; the proximity switch I, the proximity switch II and the locking mechanism are electrically connected with the main controller, and the main controller is electrically connected with the audible and visual alarm.
Further, the model of the proximity switch I and the proximity switch II is NJ20+ U1+ N.
Further, the locking mechanism is a linear motor.
The utility model achieves the following beneficial effects:
(1) through the multi-sensor detection of the proximity switch I and the proximity switch II, the condition that a single sensor lacks detection signals due to faults and the like can be avoided.
(2) Through the position detection device of the locking pin, whether the locking pin really plays a locking effect can be accurately reflected.
(3) By adding the locking mechanism of the locking pin, the possibility of manual operation errors can be effectively reduced.
(4) The audible and visual alarm on the main controller can play the roles of prompting and alarming in time.
Drawings
Fig. 1 is a schematic structural diagram of an interlocking control and alarm device for the homing and locking of a movable ladder;
FIG. 2 is a partial enlarged view of a second proximity switch of the interlocking control and alarm device for the homing and locking of the escalator;
FIG. 3 is a partial enlarged view of a proximity switch of the interlocking control and alarm device for the homing and locking of a mobile ladder;
FIG. 4 is a partial enlarged view of the locking pin of the interlocking control and alarm device for the homing locking of the escalator;
in the figure, 1, a movable support of a movable ladder; 2. an induction plate; 3. a proximity switch I; 4. a movable ladder fixing bracket; 5. a movable ladder bottom plate; 6. a locking pin; 7. locking the induction plate; 8. a proximity switch II; 9. a locking mechanism; 10. the movable ladder is a step.
Detailed Description
To facilitate an understanding of the present invention by those skilled in the art, specific embodiments thereof are described below with reference to the accompanying drawings.
As shown in fig. 1 to 4, a movable ladder resetting and locking interlocking control and alarm device comprises a movable ladder support, a movable ladder fixed support, a movable ladder bottom plate and a movable ladder step, wherein a first proximity switch is fixedly arranged on the movable ladder fixed support, an induction plate is fixedly arranged on one side of the movable ladder support, a locking induction plate is fixedly arranged on the other side of the movable ladder support, a second proximity switch is fixedly arranged on the locking induction plate, a locking pin is arranged on the movable ladder fixed support on one side of the locking induction plate, and a locking mechanism is arranged on the upper part of the locking pin; the proximity switch I, the proximity switch II and the locking mechanism are electrically connected with the main controller, and the main controller is electrically connected with the audible and visual alarm. The model of the proximity switch I and the proximity switch II is NJ20+ U1+ N.
When the movable ladder is retracted, the movable ladder movable support and the movable ladder fixed support are gradually closed, and the proximity switch senses the induction plate and sends a homing signal of the movable ladder, namely an acousto-optic signal sent by the main controller; manually operating the locking pin to pass through the hole of the locking induction plate; the proximity switch II senses the locking pin and sends a locking signal of the movable ladder; the locking mechanism acts to lock the locking pin after the system receives the locking signal of the movable ladder, so that the movable support of the movable ladder is prevented from unfolding in a non-working state.
When the movable ladder is opened, the switch is started, the main controller sends a signal to the locking mechanism, and the locking mechanism acts to release the locking of the locking pin; manually opening the locking pin to release the locking state of the locking pin and the locking induction plate; the movable ladder is opened to be in a working state.
In the using process, the proximity switch I, the proximity switch II and the locking mechanism transmit position or state signals to the main controller, and the main controller comprises an audible and visual alarm. Through signal interlocking, an acousto-optic signal can be sent out after a loading arm (a loading and unloading tank car device) returns to the position and when a movable ladder does not return to the position, or the signal is uploaded to a control system after the movable ladder returns to the position and is locked and locked; when the movable ladder is in a working state, the position signals collected by the main controller can be uploaded to the control system. The control system can carry out safety protection management on the whole loading and unloading system according to the homing signal.
The above-described embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (3)
1. The utility model provides an interlocking control and alarm device of activity ladder playback locking which characterized in that: the locking mechanism comprises a movable ladder movable support and a movable ladder fixed support, wherein a proximity switch I is fixedly arranged on the movable ladder fixed support, an induction plate is fixedly arranged on one side of the movable ladder movable support, a locking induction plate is fixedly arranged on the other side of the movable ladder movable support, a proximity switch II is fixedly arranged on the locking induction plate, a locking pin is arranged on the movable ladder fixed support on one side of the locking induction plate, and a locking mechanism is arranged on the upper part of the locking pin; the proximity switch I, the proximity switch II and the locking mechanism are electrically connected with the main controller, and the main controller is electrically connected with the audible and visual alarm.
2. The interlocking control and alarm device for the homing and locking of the escalator as claimed in claim 1, wherein: the model of the proximity switch I and the proximity switch II is NJ20+ U1+ N.
3. The interlocking control and alarm device for the homing and locking of the escalator as claimed in claim 1, wherein: the locking mechanism is a linear motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121830265.6U CN215922023U (en) | 2021-08-06 | 2021-08-06 | Interlocking control and alarm device for returning and locking of movable ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121830265.6U CN215922023U (en) | 2021-08-06 | 2021-08-06 | Interlocking control and alarm device for returning and locking of movable ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215922023U true CN215922023U (en) | 2022-03-01 |
Family
ID=80399863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121830265.6U Active CN215922023U (en) | 2021-08-06 | 2021-08-06 | Interlocking control and alarm device for returning and locking of movable ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215922023U (en) |
-
2021
- 2021-08-06 CN CN202121830265.6U patent/CN215922023U/en active Active
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