CN214269818U

CN214269818U - Interlocking protection device for vertical shaft cradle

Info

Publication number: CN214269818U
Application number: CN202022499155.8U
Authority: CN
Inventors: 尹杜彪; 李岳明
Original assignee: Hebei Jinchangyu Mining Co ltd
Current assignee: Hebei Jinchangyu Mining Co ltd
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2021-09-24
Anticipated expiration: 2030-11-03

Abstract

The utility model relates to a shaft cage chair interlocking protection device, it includes shaft safety door interlocking control system, shaft safety door interlocking control system includes the door interlock switch who opens or closed linkage with the emergency exit, a parallelly connected cage chair interlock switch of door interlock switch, change over switch of cage chair interlock switch series connection, opening or closing coordinated control of cage chair interlock switch and cage chair. Shaft emergency exit interlock control system has realized the interlock control of shaft emergency exit, promptly: only when the safety door is closed, the bell is pulled and the signal panel is lighted to start the vehicle; on the basis, a change-over switch and a cradle interlocking switch are designed to realize the interlocking of the cradle.

Description

Interlocking protection device for vertical shaft cradle

Technical Field

The utility model relates to a shaft cage chair safe operation technical field especially relates to a shaft cage chair interlocking protection device.

Background

The lifting system is particularly important in mine enterprises, the standard is higher and higher, and the protection device must be complete. In the existing shaft hoisting system, the interlocking protection of the safety door is generally realized, namely: only when the safety door is closed, the bell can be pulled and the signal panel can be lighted to drive the vehicle. However, the existing shaft hoisting system does not carry out interlocking control protection on the cradle, and potential safety hazards exist during hoisting.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving the technical problem who exists among the prior art. Therefore, the utility model provides a shaft cage chair interlocking protection device has realized the interlocking control of emergency exit and the interlocking control of cage chair.

The utility model provides a technical scheme that its technical problem adopted is:

the vertical shaft cradle interlocking protection device comprises a vertical shaft safety door interlocking control system, wherein the vertical shaft safety door interlocking control system comprises a door interlocking switch which is in open or closed linkage with a safety door, the door interlocking switch is connected with a cradle interlocking switch in parallel, the cradle interlocking switch is connected with a change-over switch in series, and the cradle interlocking switch and the cradle are controlled in opening or closing linkage.

The utility model provides a shaft cage chair interlocking protection device's a preferred embodiment, cage chair interlocking switch includes normally closed magnetic switch and strong magnet, normally closed magnetic switch installs by the counter weight iron of well head cage chair, the strong magnet is installed in the counter weight iron.

The utility model provides a shaft cage chair interlocking protection device's a preferred embodiment, shaft safety door interlocking control system still includes relay, green signal lamp, red signal lamp, signal panel and beats the switch and draw the bell switch, door interlocking switch with change over switch and the parallelly connected back of cage chair interlocking switch with the solenoid of relay establishes ties into return circuit one, the normally open contact of relay forms return circuit two after establishing ties with green signal lamp, the normally closed contact and the red signal lamp of relay form return circuit three after establishing ties, return circuit one, return circuit two and three parallel connection in return circuit, the signal panel beat the switch with draw the bell switch parallelly connected back with the normally open contact of relay establishes ties and forms return circuit four.

Compared with the prior art, the utility model provides a shaft cage chair interlocking protection device's beneficial effect is: shaft emergency exit interlock control system has realized the interlock control of shaft emergency exit, promptly: only when the safety door is closed, the bell is pulled and the signal panel is lighted to start the vehicle; on the basis, a change-over switch and a cradle interlocking switch are designed to realize the interlocking of the cradle.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:

fig. 1 is an electrical connection diagram of the shaft cradle interlock protection device provided by the present invention.

In the figure: QS 1-a main switch, Q1-a gate interlocking switch, QS 2-a change-over switch, Q2-a normally closed magnetic switch, KA 1-a relay, T1-a signal panel striking switch and T2-a pull bell switch.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

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, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

Referring to fig. 1, the shaft cradle interlock protection device 1 of the present embodiment includes a shaft safety door interlock control system, and the shaft safety door interlock control system of the present embodiment includes a door interlock switch Q1, a relay KA1, a green signal lamp, a red signal lamp, a signal panel striking switch T1, and a pull bell switch T2, the door interlock switch Q1 is connected in series with an electromagnetic coil of the relay KA1 to form a first loop, a normally open contact of the relay KA1 is connected in series with the green signal lamp to form a second loop, a normally closed contact of the relay KA1 is connected in series with the red signal lamp to form a third loop, the first loop, the second loop, and the third loop are connected in parallel, and the signal panel striking switch T1 is connected in parallel with the pull bell switch T2 and then connected in series with the normally open contact of the relay KA1 to form a fourth loop.

The control principle of the shaft safety door interlocking control system in the embodiment is as follows:

when the lift, need carry out emergency exit interlocking control, as shown in fig. 1, only when the emergency exit is closed the back, could the red light go out this moment, and the green light is bright, could realize pulling bell or signal panel and hit and make a point successfully, consequently only when the people get into the back and the emergency exit is closed and just can normally drive and carry people.

In order to solve the potential safety hazard that the cage chair exists during the lift, this embodiment is further right the shaft cage chair interlocking protection device carries out further design, specifically is: the door interlocking switch Q1 is connected with a cradle interlocking switch in parallel, the cradle interlocking switch is connected with a changeover switch QS2 in series, the cradle interlocking switch and the cradle are controlled in an opening or closing linkage mode, and the door interlocking switch Q1 is connected with the changeover switch QS2 and the cradle interlocking switch in parallel and then connected with an electromagnetic coil of the relay KA1 in series to form a new loop I.

Specifically, the cradle interlock switch of this embodiment includes normally closed magnetic switch Q2 and strong magnet (not shown in the figure), normally closed magnetic switch Q2 is installed beside the counterweight iron of wellhead cradle, the strong magnet is installed in the counterweight iron.

The utility model discloses a control principle as follows:

when a person lifts, the safety door is required to be interlocked, the change-over switch is pulled down at the moment, the change-over switch is disconnected, door interlocking control is put into operation, and the person is lifted normally;

when the lift is carried, the change-over switch is turned on, the mine car needs to be loaded, the safety door is in an open state, the counterweight iron of the cradle needs to be pressed up when the lift is normal, the strong magnet arranged on the counterweight iron senses the normally closed magnetic switch, the normally closed magnetic switch is turned on, the relay is powered off, the pull bell or the signal panel is not effective in striking, and the lift cannot be driven; the mine car is loaded on the tank, the counterweight iron falls down, the normally closed magnetic switch is closed, the pull bell or the signal panel is normally turned on, the car can be normally driven, and the cradle interlocking control is realized.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes made by the present specification can be changed, or directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.

Claims

1. The utility model provides a shaft cage chair interlocking protection device, includes shaft safety door interlocking control system, its characterized in that: the interlocking control system for the safety door of the vertical shaft comprises a door interlocking switch which is in open or close linkage with the safety door, the door interlocking switch is connected with a cradle interlocking switch in parallel, the cradle interlocking switch is connected with a change-over switch in series, and the cradle interlocking switch and the cradle are controlled in open or close linkage.

2. The hoistway cradle interlock protection device of claim 1, wherein: the cradle interlock switch comprises a normally closed magnetic switch and a strong magnet, the normally closed magnetic switch is installed beside the counterweight iron of the wellhead cradle, and the strong magnet is installed on the counterweight iron.

3. The hoistway cradle interlock protection device of claim 1, wherein: the shaft safety door interlocking control system further comprises a relay, a green signal lamp, a red signal lamp, a signal panel dotting switch and a ring pulling switch, the door interlocking switch, a change-over switch and a cradle interlocking switch are connected in parallel and then are connected in series with an electromagnetic coil of the relay to form a first loop, a normally open contact of the relay is connected in series with the green signal lamp to form a second loop, a normally closed contact of the relay and the red signal lamp are connected in series to form a third loop, the first loop, the second loop and the third loop are connected in parallel, and the signal panel dotting switch and the ring pulling switch are connected in parallel and then are connected in series with the normally open contact of the relay to form a fourth loop.