CN2058672U - Hand-operated fork-lift truck - Google Patents
Hand-operated fork-lift truck Download PDFInfo
- Publication number
- CN2058672U CN2058672U CN 89218299 CN89218299U CN2058672U CN 2058672 U CN2058672 U CN 2058672U CN 89218299 CN89218299 CN 89218299 CN 89218299 U CN89218299 U CN 89218299U CN 2058672 U CN2058672 U CN 2058672U
- Authority
- CN
- China
- Prior art keywords
- goods
- spring
- door frame
- hand fork
- links
- 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.)
- Withdrawn
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- Forklifts And Lifting Vehicles (AREA)
Abstract
The utility model relates to a hand fork lifter which adopts a hoisting system designed according to the euler formula principle, relating to a heavy-goods lifting and lowering device used for the purpose of loading or offloading. The hand fork lifter comprises a door frame 1, a supporter 2, a goods shovel 3, a rocker 4, a hoisting drum wheel 5, a lifting rope, a drive mechanism, and a back-stop mechanism, and is characterized in that the hand fork lifter also comprises pulleys 7 and 8 and a spring 9. The utility model is characterized in that a balance weight is placed by the spring to apply the balance to the goods shovel. The preparing method solves the unsafe problem brought to the hand fork lifter caused by using the balance weight.
Description
The utility model relates to a kind of device that is used to load or unload the lifting heavy cargo of purpose.
Patent Office of the People's Republic of China's patent granted number is that a kind of simple and easy its major part of fork truck patent of 87208417 comprises door frame, support, goods shovel, rocking bar, elevating drum, derrick line, can make elevating drum only make transmission device and back-stop mechanism and the bob-weight etc. of folk prescription to rotation.Its feature descend for the shovel of the goods on this fork truck at full load and the liter when unloaded with fall people all can be directly by carrying out to bob-weight or to the derrick line application of force that hanging balancing is hammered into shape, and need not pass through speed change system.Therefore, the advantage of this fork truck is that handling efficiency is very high.But, this fork truck also has blemish in an otherwise perfect thing.This mainly shows as: fully loaded with cargo goods shovel is unsettled and when being in static balance with bob-weight, people will must not pay close attention to allows other beyond thought external force be applied on the bob-weight, balancing force is reduced suddenly or lose, otherwise goods and goods shovel will be degenerated and may be caused the accident that the goods damage people hinders.
The objective of the invention is the hoisting system of above-mentioned fork truck is improved, to eliminate the safety hazard that bob-weight brings to fork truck.
What accompanying drawing provided is the structural representation of the hand fork lifter after improving.
With reference to accompanying drawing: compare with above-mentioned fork truck, the utility model also has door frame 1, support 2, goods shovel 3, rocking bar 4, elevating drum 5, hoisting line 6 and can make 5 of elevating drums make transmission mechanism and the back-stop mechanism of one direction rotation. Said hoisting line 6 is wrapped on the elevating drum 5, and the one end hangs goods shovel 3 and links to each other with door frame 1. Different is also has pulley 7,8 and spring 9 on this fork truck, wherein, pulley 7 links to each other with door frame 1 by spring 9, and pulley 8 shovels with goods and links to each other. The end that said hoisting line 6 does not hang goods shovel 3 passes pulley 7,8 and links to each other with door frame 1.
We can see to contrast two kinds of fork trucks, the utility model just replaces bob-weight with spring, the gravity of change bob-weight imposes balancing force into the elastic force and the friction force of derrick line between elevating drum of spring to the goods shovel that is under zero load or the fully loaded mode of operation, but, the elastic force of spring is disappeared and only can strengthen from any external force (damage capacity except), as seen it can guarantee the safe in operation of people to fork truck.
Friction force is reduced or thereby the elastic force of spring 9 weakens and causes that balancing force reduces in order to prevent to infiltrate between the elevating drum and derrick line year in and year out greasy dirt, the end that the said spring of the utility model 9 ends link to each other with pulley 7 can link to each other with door frame 1 by a governing screw 10, like this, when above-mentioned situation took place, people can adjust balancing force by governing screw 10.
Claims (2)
1, a kind of hand fork lifter, door frame 1, support 2, goods shovel 3, rocking bar 4, elevating drum 5, derrick line 6 are arranged and can make 5 of elevating drums make transmission device and the back-stop mechanism of folk prescription to rotation, said derrick line 6 is wrapped on the elevating drum 5, the one end hangs goods shovel 3 and links to each other with door frame 1, feature of the present utility model is, also have pulley 7,8 and spring 9 on this fork truck, wherein, pulley 7 links to each other with door frame 1 by spring 9, pulley 8 and goods shovel links to each other, and said derrick line 6 does not hang goods and shovels an end of 3 and wear and walk around pulley 7,8 and link to each other with door Ke 1.
2,, it is characterized in that an end of spring 9 end connection pulleys 7 links to each other with door frame 1 by a governing screw 10 according to the said hand fork lifter of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89218299 CN2058672U (en) | 1989-10-17 | 1989-10-17 | Hand-operated fork-lift truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89218299 CN2058672U (en) | 1989-10-17 | 1989-10-17 | Hand-operated fork-lift truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2058672U true CN2058672U (en) | 1990-06-27 |
Family
ID=4873386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89218299 Withdrawn CN2058672U (en) | 1989-10-17 | 1989-10-17 | Hand-operated fork-lift truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2058672U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100357655C (en) * | 2004-12-15 | 2007-12-26 | 明基电通股份有限公司 | Display and stand structure thereof |
| CN101130172B (en) * | 2006-08-24 | 2012-03-07 | 海尔集团公司 | Balance suspension system for controlling strength of folding glass door of biological safety cabinet |
| CN103318273A (en) * | 2012-03-22 | 2013-09-25 | 中国航空技术广州有限公司 | Expanding capsule body and motor vehicle |
-
1989
- 1989-10-17 CN CN 89218299 patent/CN2058672U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100357655C (en) * | 2004-12-15 | 2007-12-26 | 明基电通股份有限公司 | Display and stand structure thereof |
| CN101130172B (en) * | 2006-08-24 | 2012-03-07 | 海尔集团公司 | Balance suspension system for controlling strength of folding glass door of biological safety cabinet |
| CN103318273A (en) * | 2012-03-22 | 2013-09-25 | 中国航空技术广州有限公司 | Expanding capsule body and motor vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |