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Interlocking control system of safety doors of material receiving platform

A material receiving platform and control system technology, applied in the field of the safety door interlocking control system of the material receiving platform, can solve the problems of inability to use for a long time, insensitive control, easy to be damaged, etc., and achieve fast installation and wiring, strong market prospects, triggering simple structure

Active Publication Date: 2013-12-25
安徽水利开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to effectively solve the protection problem of the material receiving platform opening on the floor of the material hoist, there are currently some safety door interlocking devices that can be solved, but they are easy to be damaged during use, insensitive to control, easy to be damaged, and cannot be used for a long time

Method used

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  • Interlocking control system of safety doors of material receiving platform
  • Interlocking control system of safety doors of material receiving platform
  • Interlocking control system of safety doors of material receiving platform

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] figure 1 It is a principle block diagram of the present invention. In this embodiment, the host control circuit is used to control the gantry host, and its circuit diagram is as follows figure 2 As shown, it includes: a power supply circuit, including a DC power supply circuit and an AC power supply circuit, connected to an external three-phase power supply; a magnetic induction switch NJK, set in the door plug of the safety door, one for each floor, and the floor in this embodiment is 4 floors , the magnetic induction switch is NJK1-NJK4; strong magnetism, set in the jack of the safety door, matches the magnetic induction switch of the corresponding floor; layered relay KA2-KA5, controlled by the magnetic induction switch NJK1-NJK4 of the corresponding floor, each layer The relay includes 1 pair of normally closed contacts and 1 pair of normally open contacts, each pair of normally closed contacts is connected in series with an indicator light (ie HR2-HR5); the host r...

Embodiment 2

[0042] In this embodiment, the host control circuit is used to control freight elevators and other general-purpose systems, and its working principle is the same as that of Embodiment 1. system, only need to connect the host control circuit with the KA1 relay normally open, which can reduce the cost, and it can be applied to various equipment, such as image 3 shown.

[0043] When the magnetic induction switches NJK1, NJK2, NJK3, and NJK4 installed in the steel pipe in the door insert are all inserted into the sockets of the safety door frame and connected with the strong magnets installed in the sockets, the (black line) of each magnetic induction switch NJK has a load of 200mA The current is connected to the coils of KA2, KA3, KA4, and KA5 to make KA2, KA3, KA4, and KA5 energized and closed, and at the same time, the normally open contacts 3-4, 4-5, 5-6, and 6-7 are closed to make KA1 The electric suction connects the incoming line of the control circuit of the main engine, s...

Embodiment 3

[0048] The circuit diagram of this embodiment is as follows Figure 4 As shown, the working principle is basically the same as that of Embodiment 1, the difference is that the magnetic induction switch is omitted, the layered relays KA2-KA5 are arranged in the socket of the safety door, and the strong magnetism is arranged on the door plug of the safety door, so that in When the door plug of the safety door is inserted into the jack, the strong magnetism and the layered relay are attracted; in addition, the control relays KA6-KA9 are respectively set in the main control box to control the layered relays KA2-KA5.

[0049] Each layered relay and control relay includes 1 pair of normally closed contacts and 1 pair of normally open contacts, and each pair of normally closed contacts is connected in series with an alarm; the normally open contacts of the layered relay and the corresponding control relay coil Connection; the host relay, its control coil and the normally open contact...

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PUM

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Abstract

The invention provides an interlocking control system of safety doors of a material receiving platform. The interlocking control system comprises a power supply circuit, magnetic induction switches, strong magnets, layered relays, a host relay, a host circuit and a host control circuit, wherein the magnetic induction switches are arranged in door bolts of the safety doors; each strong magnet is arranged in an insertion hole of one safety door and matched with the corresponding magnetic induction switch; the layered relays are controlled by the corresponding magnetic induction switches, each layered relay comprises a normally closed contact and a normally open contact, and each normally closed contact is connected with an indicating lamp in series; a control coil of the host relay is mutually connected with the normally open contacts of all the layered relays in series and then connected into the power supply circuit, the host relay comprises a pair of normally closed contacts and a pair of normally open contacts, and the normally closed contacts are connected with a first alarm device in series; a host is used for controlling forward operation and reverse operation through a first contactor and a second contactor; and the host control circuit is connected with the normally open contacts of the host relay in series and then connected into the power supply circuit. The interlocking control system disclosed by the invention can ensure that the host control circuit can only be triggered when each safety door is in a well insertion state by detecting the states of the safety doors in all floors so as to ensure safety.

Description

technical field [0001] The invention relates to a door lock device for a safety door at a material platform entrance of a building material hoist, in particular to an interlock control system for a safety door of a material receiving platform. Background technique [0002] The material hoist is a commonly used equipment in building construction, and it plays an important role in solving the vertical transportation tasks of building construction. However, for a long time, the problem of the protection door of the material receiving port in the floor of the material hoist has not been effectively solved, and the phenomenon of falling from a height from the floor opening (between the material lifting frame body and the floor material receiving platform port) still occurs , The floor material receiving platform port has become a frequent point of safety accidents. In order to effectively solve the protection problem of the material receiving platform opening on the floor of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B13/16
Inventor 许业勇朱红辉顾群耿发林张园园刘丽芝刘志荣吴乾坤许业亮
Owner 安徽水利开发有限公司