CN206970079U - Electric hoist lifts protector - Google Patents
Electric hoist lifts protector Download PDFInfo
- Publication number
- CN206970079U CN206970079U CN201720953289.8U CN201720953289U CN206970079U CN 206970079 U CN206970079 U CN 206970079U CN 201720953289 U CN201720953289 U CN 201720953289U CN 206970079 U CN206970079 U CN 206970079U
- Authority
- CN
- China
- Prior art keywords
- electric hoist
- fence
- chip microcomputer
- relay
- output end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of electric hoist to lift protector, including the fence being arranged in corresponding electric hoist lifting stop position, the fence gate for facilitating goods disengaging fence is provided with fence, the travel switch for perceiving fence gate open/close states is provided with the fence of corresponding fence gate closing position, the single-chip microcomputer of the output end connection control electric hoist motor work of the travel switch, the power end connecting valve power supply of single-chip microcomputer, the output end of single-chip microcomputer connect the power end of electric hoist motor through relay；Between single-chip microcomputer and earth terminal, the normally opened contact of relay is serially connected on the wire between power supply and motor the coil tandem of the relay.The utility model be applied to electric hoist descending operation during, can electric hoist lifted, the operation on horizontal direct of travel is protected, can effectively avoid personal injury accident.
Description
Technical field
It the utility model is related to hoisting apparatus technical field of safety protection, the lifting protection dress of particularly a kind of electric hoist
Put.
Background technology
Electric hoist is a kind of extraordinary crane gear, on overhead traveling crane, straddle truck, have small volume, from heavy and light, operation letter
The features such as single, easy to use, applied in industrial and mining enterprises, being to raise labour efficiency, the necessary equipment improved working conditions.
Electric hoist is used to lift by crane compared with parcel, it is therefore necessary to installs safety device additional.It is applied at present on electric hoist
Safety device is mainly reflected in the protection of weight, i.e., protector is used for the hoisting weight for limiting electric hoist, works as goods
More than alarm during hoisting weight, is sent depending on electric hoist, remind operating personnel to pay attention to, can avoid that steel wire occurs because overweight
Rope, the danger of crossbeam fracture.But electric hoist is in use, particularly in vertical direction（Such as two floor gap）Fortune
During defeated goods, because operating personnel is generally only in certain level position, therefore during goods rises or falls, operation people
Member can not know that whether someone another horizontal level occurs, if just someone passes by during goods lifts, will necessarily endanger
And other people are safe.
Utility model content
The utility model technical issues that need to address are to provide a kind of be used for being protected in electric hoist lifting process
Device, to ensure personal security of the electric hoist during descending operation.
In order to solve the above technical problems, technical solution adopted in the utility model is as follows.
Electric hoist lifts protector, including the fence being arranged in corresponding electric hoist lifting stop position, is set on fence
There is the fence gate for facilitating goods disengaging fence, be provided with the fence of corresponding fence gate closing position and perceive fence gate open/close states
Travel switch, the single-chip microcomputer of the output end connection control electric hoist motor work of the travel switch, the power end of single-chip microcomputer
Connecting valve power supply, the output end of single-chip microcomputer connect the power end of electric hoist motor through relay；The coil string of the relay
It is connected between single-chip microcomputer and earth terminal, the normally opened contact of relay is serially connected on the wire between power supply and motor.
Above-mentioned electric hoist lifts protector, and a cylindricality locating piece, locating piece are fixedly connected with the suspension hook of the electric hoist
Side wall on it is even be furnished with it is some it is setting obliquely, for detect below suspension hook whether the infrared sensor that someone occurs, it is infrared
The input of the output end connection single-chip microcomputer of sensor.
Above-mentioned electric hoist lifts protector, and the output end of the single-chip microcomputer is also associated with voice announcer.
As a result of above technical scheme, technological progress acquired by the utility model is as follows.
The utility model is applied to during the descending operation of electric hoist, it can be prevented when electric hoist lifts
Shield, the setting of fence can effectively prevent other people to be strayed into the lifting region of electric hoist, and the setting of fence gate upper stroke switch can be used for
The power supply of electric hoist motor is cut off when door is opened, prevents electric hoist someone in lifting process is strayed into fence from person wound occurs
Evil.The infrared sensor set above electric hoist suspension hook on locating piece can detect it in electric hoist during horizontal feed
Whether someone surrounding occurs, and when someone occurs, single-chip microcomputer further controls electric hoist motor to stop immediately by control relay
Only work, prevent electric hoist from being endangered the safety of other people during walking in a horizontal state, the security performance of Reliable guarantee electric hoist operation.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is electrical schematic diagram of the present utility model.
In figure：1. electric hoist, 2. suspension hooks, 3. locating pieces, 4. infrared sensors, 5. fences, 6. fence gates, 7. strokes are opened
Close, 8. Switching Power Supplies, 9. voice announcers；U. single-chip microcomputer, KM. relays, KM-1. relay normally open contacts, M. electric hoists electricity
Machine.
Embodiment
The utility model is further elaborated below in conjunction with the drawings and specific embodiments.
A kind of electric hoist lifts protector, and its structure is as shown in figure 1, including fence and controlling organization, fence is arranged on
In the stop position of corresponding electric hoist oscilaltion, for playing protective action to the weight on electric hoist suspension hook, prevent other people from missing
Enter；Fence gate 6 is provided with fence, facilitates goods to pass in and out fence gate 6.
Controlling organization includes single-chip microcomputer U, Switching Power Supply, travel switch, infrared sensor, relay KM and voice broadcast
Device, the annexation between each device are as shown in Figure 2.Wherein, single-chip microcomputer, Switching Power Supply and voice announcer are arranged on electric calabash
Reed side, travel switch is arranged on the fence 5 of the corresponding closing position of fence gate 6, for perceiving the open/close states of fence gate, and
Transmit information to single-chip microcomputer.Infrared sensor is arranged on suspension hook by cylindricality locating piece, and the transmitting light of infrared sensor inclines
Obliquely, for detecting, whether someone occurs below suspension hook, and transmits information to single-chip microcomputer.The power end connection of single-chip microcomputer is opened
The output end in powered-down source, the output end of single-chip microcomputer connect the power end of electric hoist motor, the coil of above-mentioned relay through relay
It is serially connected between single-chip microcomputer and earth terminal, the normally opened contact of relay is serially connected on the wire between power supply and motor.Voice is broadcast
The output end of the controlled end connection single-chip microcomputer of device is reported, for reporting warning message according to the instruction of single-chip microcomputer.
Operation principle of the present utility model is：When electric hoist carries out lift work, it is necessary to assure fence gate, which is in, closes
State, now travel switch be triggered, after single-chip microcomputer receives instruction, relay coil KM is obtained electric, relay normally open contact
KM-1 is closed, and electric hoist electrical power, electric hoist can carry out descending operation under telecommand；Once fence gate is opened, i.e.,
Someone enters fence, and travel switch sends to single-chip microcomputer instruct immediately, and single-chip microcomputer exports low level to one end of relay coil
Signal, then relay coil dead electricity, relay normally open contact are opened, and electric hoist motor can not switch on power, even if sending operation
Instruction, electric hoist will not also carry out descending operation, carried out effective protection to the passage on electric hoist lifting direction, avoided operating
Personal observations pass through less than someone and goods occur and hurts sb.'s feelings event.It is red on suspension hook when electric hoist carries out moving horizontally operation
Outer sensor can detect its direct of travel, and whether someone passes through, and when someone passes through, single-chip microcomputer can equally lose relay coil
Electricity, electric hoist motor are failure to actuate, and effective protection has been carried out to the passage on the horizontal direct of travel of electric hoist.
When electric hoist motor dead electricity, single-chip microcomputer meeting control voice broadcast device alert, operating personnel's note is reminded
Meaning.
Claims (3)
1. electric hoist lifts protector, it is characterised in that：Including the fence being arranged in corresponding electric hoist lifting stop position
（5）, fence（5）On be provided with facilitate goods disengaging fence fence gate（6）, corresponding fence gate（6）The fence of closing position（5）
On be provided with perceive fence gate open/close states travel switch（7）, the travel switch（7）Output end connection control electric hoist
The single-chip microcomputer of motor work, the power end connecting valve power supply of single-chip microcomputer（8）, the output end of single-chip microcomputer is through the electric calabash of relay connection
The power end of reed motor；The coil tandem of the relay is between single-chip microcomputer and earth terminal, the normally opened contact concatenation of relay
On wire between power supply and motor.
2. electric hoist according to claim 1 lifts protector, it is characterised in that：It is fixed on the suspension hook of the electric hoist
Connect a cylindricality locating piece（3）, in the side wall of locating piece it is even be furnished with it is some it is setting obliquely, for detect below suspension hook whether
The infrared sensor that someone occurs（4）, infrared sensor（4）Output end connection single-chip microcomputer input.
3. electric hoist according to claim 2 lifts protector, it is characterised in that：The output end of the single-chip microcomputer also connects
It is connected to voice announcer（9）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720953289.8U CN206970079U (en) | 2017-08-02 | 2017-08-02 | Electric hoist lifts protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720953289.8U CN206970079U (en) | 2017-08-02 | 2017-08-02 | Electric hoist lifts protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206970079U true CN206970079U (en) | 2018-02-06 |
Family
ID=61394128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720953289.8U Expired - Fee Related CN206970079U (en) | 2017-08-02 | 2017-08-02 | Electric hoist lifts protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206970079U (en) |
-
2017
- 2017-08-02 CN CN201720953289.8U patent/CN206970079U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180206 Termination date: 20190802 |