CN217326750U

CN217326750U - Hoist and mount mouth safety device

Info

Publication number: CN217326750U
Application number: CN202220236369.2U
Authority: CN
Inventors: 严宝强; 杨成相; 张宝文; 梁兴文
Original assignee: Inner Mongolia Yitai Jingyue Suancigou Mining Co ltd; Inner Mongolia Zhongyu Taide Coal Co ltd; Ordos Zhongyu Taide Coal Co ltd
Current assignee: Inner Mongolia Yitai Jingyue Suancigou Mining Co ltd; Inner Mongolia Zhongyu Taide Coal Co ltd; Ordos Zhongyu Taide Coal Co ltd
Priority date: 2022-01-28
Filing date: 2022-01-28
Publication date: 2022-08-30
Anticipated expiration: 2032-01-28

Abstract

The utility model discloses a hoisting port safety protection device, wherein a U-shaped fence is arranged above the hoisting port along the periphery of the hoisting port, a motor is arranged on the floor surface where the hoisting port is positioned, a rotating shaft is horizontally arranged at the lower part of the opening end of the U-shaped fence, and the rotating shaft is in driving connection with the motor; two driving gears are symmetrically arranged at two ends of the rotating shaft, two driven gears are symmetrically arranged on the rack, lifting chains are wound between the driven gears and the driving gears, and a connecting rod is fixedly connected between the two lifting chains; the lower extreme fixedly connected with protecting wire net of connecting rod, the other end of protecting wire net is around locating on the pivot. The utility model can realize the ascending and descending of the protecting net by controlling the positive and negative rotation of the motor through the controller, and has high automation degree; the motor and the travelling crane are remotely controlled to run, so that the risk of falling of personnel from a lifting port is reduced; when the travelling crane ascends/descends in running and does not use the travelling crane, the motor protecting net is lifted and the motor power supply switch is switched off, so that the safety of the protection of the hoisting port is greatly improved.

Description

Hoist and mount mouth safety device

The technical field is as follows:

the utility model relates to a safety protection facility field, in particular to hoist and mount mouth safety device.

Background art:

the hoisting port is a hole reserved on each floor of a multi-storey building for facilitating the hoisting of goods by a crane. In order to prevent personnel from falling from a hoisting port or foreign matters from falling into the hoisting port, the traditional method is that a fence is arranged on the surface of a floor slab where the hoisting port is located along the periphery of the hoisting port, a rotating fence door is arranged on the fence on the side where goods enter and exit, and the fence door is closed when the device is not used normally; when the goods are hoisted, an operator opens the fence door and controls the crane to lift the goods out of one side of the fence door.

However, there are the following problems:

1. the opening and closing of the fence door requires manual operation, and the automation degree is low;

2. when the fence door is closed/opened, the operator is close to the lifting opening, and the risk that the operator falls from the lifting opening exists;

3. the running of the travelling crane is not related to the opening and closing of the fence door, the fence door can be opened at will when the travelling crane is used for lifting goods up and down and is not used at ordinary times, and certain potential safety hazards exist.

The utility model has the following contents:

an object of the utility model is to provide a hoist and mount mouth safety device.

The utility model discloses by following technical scheme implement: a hoisting port safety protection device comprises a hoisting port, a U-shaped fence is arranged above the hoisting port along the periphery of the hoisting port,

the U-shaped fence is characterized by further comprising a motor arranged on the floor surface where the hoisting opening is located, a rotating shaft is horizontally arranged at the lower part of the opening end of the U-shaped fence, the length direction of the rotating shaft is perpendicular to the opening direction of the U-shaped fence, and the rotating shaft is in driving connection with the motor; two driving gears are symmetrically arranged at two ends of the rotating shaft, two frames are arranged at two sides of the open end of the U-shaped rail, two driven gears are symmetrically arranged at the upper parts of vertical sections of the frames, which are positioned at two sides of the open end of the U-shaped rail, the driven gears are rotationally connected with the frames, lifting chains are wound between the driven gears and the driving gears, which are positioned at the same side of the U-shaped rail, and connecting rods are fixedly connected between the two lifting chains; the lower extreme of connecting rod is equipped with the protecting wire net, the one end of protecting wire net with connecting rod fixed connection, the other end of protecting wire net is around locating in the pivot.

Furthermore, a bearing seat is arranged on one side of the vertical section of the rack opposite to the driven gear, and a wheel shaft of the driven gear penetrates through the vertical section of the rack to be rotatably connected with the bearing seat.

Furthermore, a descending limit switch and an ascending limit switch are respectively arranged on the vertical sections of one side of the rack, which are close to the driving gear and the driven gear.

The automobile driving device further comprises a controller, wherein the input end of the controller is in signal connection with the driving vehicle, the descending limit switch and the ascending limit switch, and the output end of the controller is in signal connection with the motor.

The utility model has the advantages of it is following:

1. the utility model can realize the ascending and descending of the protecting net by controlling the positive and negative rotation of the motor through the controller, and has high automation degree;

2. when the utility model is used, the operation of the motor and the travelling crane is remotely controlled by the operator without approaching the hoisting port, thereby greatly reducing the risk of the operator falling from the hoisting port;

3. the utility model discloses set up the safety protection logic through the controller between driving a vehicle and the motor, when the driving operation rises/descends the in-process and does not use the driving, controller control motor rises back and the disconnection motor power supply switch with the protecting wire net, even if press the protecting wire net that also can't descend of motor operation switch, has greatly improved the security of hoist and mount mouth protection.

Description of the drawings:

in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, 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 according to these drawings without creative efforts.

Fig. 1 is a front view of a safety protection device for a lifting hole of the utility model;

FIG. 2 is a side view of a safety device for a lifting hole of the present invention;

FIG. 3 is a top view taken at A-A of FIG. 2;

fig. 4 is the utility model relates to a hoist and mount mouth safety device's control schematic diagram.

In the figure, a hoisting port 1, a U-shaped rail 2, a motor 3, a rotating shaft 4, a driving gear 5, a frame 6, a driven gear 7, a lifting chain 8, a connecting rod 9, a protecting net 10, a bearing seat 11, a descending limit switch 12, an ascending limit switch 13, a controller 14 and a crane 15.

The specific implementation mode is as follows:

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.

As shown in fig. 1-3, a hoisting port safety protection device comprises a hoisting port 1, a U-shaped rail 2 is arranged above the hoisting port 1 along the periphery of the hoisting port 1, and further comprises a motor 3 arranged on the floor surface where the hoisting port 1 is located, a rotating shaft 4 is horizontally arranged at the lower part of the open end of the U-shaped rail 2, the length direction of the rotating shaft 4 is perpendicular to the opening direction of the U-shaped rail 2, and the rotating shaft 4 is in driving connection with the motor 3; two driving gears 5 are symmetrically arranged at two ends of the rotating shaft 4, two sides of the open end of the U-shaped fence 2 are provided with a frame 6, two driven gears 7 are symmetrically arranged at the upper parts of vertical sections of the frame 6 positioned at two sides of the open end of the U-shaped fence 2, a bearing seat 11 is arranged at one side of the vertical section of the frame 6 opposite to the driven gears 7, and a wheel shaft of the driven gears 7 penetrates through the vertical section of the frame 6 to be rotationally connected with the bearing seat 11; lifting chains 8 are wound between the driven gear 7 and the driving gear 5 which are positioned on the same side of the U-shaped fence 2, and a connecting rod 9 is fixedly connected between the two lifting chains 8; the lower extreme of connecting rod 9 is equipped with protecting wire net 10, and the one end and the connecting rod 9 fixed connection of protecting wire net 10, the other end of protecting wire net 10 is around locating on pivot 4.

A descending limit switch 12 and an ascending limit switch 13 are respectively arranged on the vertical sections of one side of the frame 6 close to the driving gear 5 and the driven gear 7. The electric vehicle further comprises a controller 14, as shown in fig. 4, the input end of the controller 14 is in signal connection with the travelling crane 15, the descending limit switch 12 and the ascending limit switch 13, and the output end of the controller 14 is in signal connection with the motor 3.

The working principle is as follows:

as shown in fig. 1-4, when the travelling crane 15 is used for lifting goods, the controller 14 receives a lifting/lowering signal of the travelling crane 15, controls the motor 3 to rotate forward, the motor 3 drives the driving gear 5 to rotate, accordingly, the driving gear 5 drives the driven gear 7 to rotate through the lifting chain 8, the lifting chain 8 drives the connecting rod 9 to lift, and the protecting net 10 is lifted; when the connecting rod 9 rises until the rising limit switch 13 is triggered, the controller 14 stops the motor 3 and simultaneously switches off the power supply switch of the motor 3, and at the moment, the motor 3 cannot be started even if a field starting button of the motor 3 is pressed.

When the controller 14 receives a running stop signal of the travelling crane 15 and an operator inputs a confirmation signal to the controller 14, the controller 14 switches on a power supply switch of the motor 3, starts the motor 3 to rotate reversely, and winds the lower end of the protective net 10 on the rotating shaft 4 through the reverse rotation of the rotating shaft 4 so as to lower the protective net 10; when the link 9 descends until the descent limit switch 12 is triggered, the motor 3 is stopped.

After an operator controls the travelling crane 15 to unload cargos, an operation completion signal is input into the controller 14, or after the controller 14 receives a stop signal of the travelling crane 15 for 20 minutes, the controller 14 controls the motor 3 to rotate forwards until a trigger signal of the ascending limit switch 13 is received, the motor 3 is stopped, and a power supply switch of the motor 3 is switched off.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A hoisting port safety protection device comprises a hoisting port, a U-shaped fence is arranged above the hoisting port along the periphery of the hoisting port, and is characterized in that,

the U-shaped fence is characterized by further comprising a motor arranged on the floor surface where the hoisting opening is located, a rotating shaft is horizontally arranged at the lower part of the opening end of the U-shaped fence, the length direction of the rotating shaft is perpendicular to the opening direction of the U-shaped fence, and the rotating shaft is in driving connection with the motor; two driving gears are symmetrically arranged at two ends of the rotating shaft, frames are arranged at two sides of the open end of the U-shaped rail, two driven gears are symmetrically arranged at the upper parts of vertical sections of the frames, which are positioned at two sides of the open end of the U-shaped rail, the driven gears are rotationally connected with the frames, lifting chains are wound between the driven gears and the driving gears, which are positioned at the same side of the U-shaped rail, and connecting rods are fixedly connected between the two lifting chains; the lower extreme of connecting rod is equipped with the protecting wire net, the one end of protecting wire net with connecting rod fixed connection, the other end of protecting wire net is around locating in the pivot.

2. The safety device for the hoisting port as claimed in claim 1, wherein a bearing seat is provided on the frame at a side opposite to the driven gear, and the axle of the driven gear passes through the vertical section of the frame to be rotatably connected with the bearing seat.

3. The safety protection device for the hoisting port as claimed in claim 1, wherein a descending limit switch and an ascending limit switch are respectively arranged on a vertical section of one side of the rack, which is close to the driving gear and the driven gear.

4. The safety device for the hoisting port as claimed in claim 3, further comprising a controller, wherein the input end of the controller is in signal connection with the travelling crane, the descending limit switch and the ascending limit switch, and the output end of the controller is in signal connection with the motor.