CN211419205U - Construction elevator platform door safety interlock - Google Patents

Abstract

The utility model discloses a construction elevator platform door safety interlocking device, including first limit switch, second limit switch, control circuit and attention device, first limit switch can be installed in the upper portion of construction elevator platform door frame, and second limit switch can be installed in construction elevator car, and when the construction elevator platform door was opened, platform door bolt touched first limit switch and second limit switch, switched on the control circuit; the control loop is communicated with the alarm. The utility model can solve the problem of potential safety hazard caused by the construction elevator running under the condition that the platform door of the construction elevator is not closed; the utility model discloses can send the warning when construction elevator platform door is not closed, play the warning effect.

Description

Construction elevator platform door safety interlock

Technical Field

The utility model relates to a construction elevator field, it is specific relates to a construction elevator platform door safety interlock.

Background

The construction elevator is construction equipment commonly used such as high-rise building construction, power plant boiler construction, stops the platform at the construction elevator, all is equipped with construction platform, in order to guarantee constructor's safety, construction platform's temporary door when the non-current state, the temporary door of platform must be in the closed condition, only when the elevator about personnel, the temporary door of platform could open. The existing construction elevator and the platform door of the construction elevator are independent, and the elevator can normally run no matter the platform door is closed or opened.

The inventor believes that the elevator will operate normally due to the landing door condition whether closed or open. When people get on or off the elevator, the platform door is forgotten to be closed due to negligence, and after the elevator is opened, a side hole is formed, so that the accident of falling from a high place of the people is very easy to cause.

In the prior published documents, control boxes are arranged on the landing doors of the elevators on each floor, and are interlocked, so that when the landing doors are in failure, failure points can be searched; interlocking is realized by remotely controlling an electromagnetic lock of a platform door in the elevator; the construction elevator and the door of the construction elevator are linked, so that mechanical and electrical interlocking is realized when the elevator is lifted and lowered. The inventor considers that the above solutions can not meet the requirements of practical use.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a safety interlocking device for a construction elevator platform door, which can solve the problem of potential safety hazard caused by the fact that the construction elevator runs under the condition that the construction elevator platform door is not closed; the construction elevator platform door alarm device can give an alarm when the construction elevator platform door is not closed, and plays a role in reminding.

The utility model aims at providing a construction elevator platform door safety interlock.

In order to realize the purpose of the utility model, the utility model discloses a following technical scheme:

the utility model discloses a construction elevator platform door safety interlocking device, which comprises a first limit switch, a second limit switch, a control loop and a warning device, wherein the first limit switch can be arranged at the upper part of a construction elevator platform door frame, the second limit switch can be arranged at a construction elevator car, and when the construction elevator platform door is opened, a platform door bolt touches the first limit switch and the second limit switch to switch on the control loop;

the control loop is communicated with the alarm.

Further, the control loop comprises a first control loop and a second control loop, wherein the first control loop is connected with the first limit switch and the buzzer, and when the first limit switch is closed, the first control loop, the first limit switch and the buzzer form a passage; the second control loop is connected with the elevator operation control loop, the relay and the second limit switch to form a loop.

Furthermore, both ends of the second control loop are communicated with the elevator operation control loop to be used as a switch of the elevator control loop; the first control loop is connected with a power supply.

Further, the alarm is a buzzer.

Further, the first limit switch is a normally closed switch.

Further, the second limit switch is a normally open switch.

Further, the first limit switch is a deflector rod switch,

further, the second limit switch is a key switch.

The utility model discloses a use method is, when construction elevator platform door is opened, platform door bolt touches first limit switch and second limit switch, and first limit switch makes first control circuit form the route, and bee calling organ starts; the second limit switch opens the second control loop through the relay, so that the elevator cannot run.

Compared with the prior art, the utility model discloses following beneficial effect has been obtained:

1) the utility model discloses when going up and down the elevator to current elevator personnel, forget to close the platform door because of the carelessness, open the back when the elevator, the not enough of personnel eminence accident of falling very easily causes in the face of limit hole of formation, reminds the concrete state that staff construction elevator platform door through using bee calling organ, can send the warning when construction elevator platform door does not close, plays the warning effect.

2) The utility model discloses in, through first limit switch and second limit switch for the action of switch door can set out two circuit work simultaneously, thereby makes switch door warning and elevator temporarily stop running these two actions together go on, can solve the construction elevator and move under the construction elevator platform door not closed condition, causes the problem that causes the potential safety hazard easily.

3) The utility model discloses in, first control circuit uses independent power to supply power to elevator control circuit outage, thereby has strengthened first control circuit's circuit security.

4) The utility model discloses in, the second control circuit uses relay control elevator operation control circuit, avoids appearing the circuit incident.

Drawings

The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.

Figure 1 is a schematic view showing the opening of a door of a construction elevator platform in embodiment 1,

figure 2 is a schematic view showing the closing of the landing door of the construction elevator in embodiment 1,

figure 3 is a schematic diagram of a first control loop in embodiment 1,

fig. 4 is a schematic diagram of a second control loop in embodiment 1.

In the figure, 100, a construction elevator platform door, 200, a platform door bolt, 11, a first limit switch, 12, a second limit switch, 2, a buzzer, 4, a relay, 5 and an elevator operation control circuit.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus are not to be construed as limiting the present invention, and furthermore, the terms "first", "second", "third", and the like are only used for descriptive purposes and are not intended to indicate or imply relative importance.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

As described in the background art, the utility model aims to provide a safety interlock device for a construction elevator platform door, which can solve the problem of potential safety hazard caused by the fact that the construction elevator runs under the condition that the construction elevator platform door is not closed, aiming at the defect that when the existing elevator personnel get on or off the elevator, the platform door is forgotten to be closed due to negligence, and the formed adjacent hole is easy to cause the falling accident of the personnel at high altitude after the elevator is opened; can send the warning when construction elevator platform door is not closed, play the warning effect, it is right to combine the figure and detailed implementation now the utility model discloses further explain.

Example 1

What at first need explain, this embodiment is used for the construction elevator, as for the concrete structure of construction elevator, the utility model discloses select SC type construction elevator for use, it has construction elevator car.

A construction elevator platform door 100 safety interlocking device comprises a first limit switch 11, a second limit switch 12, a control loop and a warning device, wherein the first limit switch 11 can be installed at the upper part of a framework of the construction elevator platform door 100, the second limit switch 12 can be installed on a construction elevator car, and when the construction elevator platform door 100 is opened, a platform door bolt 200 touches the first limit switch 11 and the second limit switch 12 to connect the control loop;

the control loop is communicated with the alarm.

The control circuit comprises a first control circuit and a second control circuit, wherein the first control circuit is connected with the first limit switch 11 and the buzzer 2, and when the first limit switch 11 is closed, the first control circuit, the first limit switch 11 and the buzzer 2 form a passage; the second control loop is connected with the elevator operation control loop, the relay 4 and the second limit switch 12 to form a loop.

Both ends of the second control loop are communicated with the elevator operation control loop to be used as a switch of the elevator control loop; the first control loop is connected with a power supply.

The alarm is a buzzer 2.

The first limit switch 11 is a normally closed switch.

The second limit switch 12 is a normally open switch.

The first limit switch 11 is a toggle lever switch.

The second limit switch 12 is a key switch.

It can be understood that the first limit switch 11 and the second limit switch 12 used in this embodiment are common components in the art, and detailed structures thereof are not described herein. The buzzer 2 is used for reminding workers of the specific state of the construction elevator platform door 100, and an alarm can be given when the construction elevator platform door 100 is not closed, so that a reminding effect is achieved; through first limit switch 11 and second limit switch 12 for the action of switch door can set off two circuit work simultaneously, thereby makes the switch door report to the police and the elevator temporarily stops running these two actions together going on simultaneously, can solve the construction elevator and move under the condition of construction elevator platform door 100 not closing, causes the problem that causes the potential safety hazard easily.

Example 2

A safety interlocking method for a construction elevator platform door 100 is characterized in that when the construction elevator platform door 100 is opened, a platform door bolt 200 touches a first limit switch 11 and a second limit switch 12, the first limit switch 11 enables a first control loop to form a passage, and a buzzer 2 is started; the second limit switch 12 opens the second control loop through the relay 4, so that the elevator cannot run.

Contrary to the above steps, when the platform door 100 of the construction elevator is closed, the platform door latch 200 does not touch the first limit switch 11 and the second limit switch 12 any more, the first limit switch 11 and the second limit switch 12 are reset, the first limit switch 11 opens the first control loop, and the buzzer 2 is closed; the second limit switch 12 closes the second control loop through the relay 4, so that the elevator continues to run.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A safety interlocking device for a construction elevator platform door is characterized by comprising a first limit switch, a second limit switch, a control loop and a warning device, wherein the first limit switch can be arranged at the upper part of a construction elevator platform door frame;

the control loop is communicated with the alarm.

2. The construction elevator landing door safety interlock of claim 1, wherein the control loop comprises a first control loop and a second control loop, wherein the first control loop connects the first limit switch and the buzzer, and wherein the first control loop, the first limit switch and the buzzer form a path when the first limit switch is closed; the second control loop is connected with the elevator operation control loop, the relay and the second limit switch to form a loop.

3. The construction elevator landing door safety interlock of claim 2, wherein both ends of the second control loop are connected to the elevator operation control loop to act as a switch for the elevator control loop; the first control loop is connected with a power supply.

4. The construction elevator landing door safety interlock of claim 1, wherein the alarm is a buzzer.

5. The construction elevator landing door safety interlock of claim 1, wherein the first limit switch is a normally closed switch.

6. The construction elevator landing door safety interlock of claim 1, wherein the second limit switch is a normally open switch.

7. The construction elevator landing door safety interlock of claim 1, wherein the first limit switch is a toggle lever switch.

8. The construction elevator landing door safety interlock of claim 1, wherein the second limit switch is a push button switch.

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