CN2125575U - Manually operated lift - Google Patents
Manually operated lift Download PDFInfo
- Publication number
- CN2125575U CN2125575U CN 92205172 CN92205172U CN2125575U CN 2125575 U CN2125575 U CN 2125575U CN 92205172 CN92205172 CN 92205172 CN 92205172 U CN92205172 U CN 92205172U CN 2125575 U CN2125575 U CN 2125575U
- Authority
- CN
- China
- Prior art keywords
- ratchet
- lift
- platen
- drum
- reel
- 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.)
- Granted
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- Braking Arrangements (AREA)
Abstract
The utility model discloses a small lift whose lift mechanism and brake mechanism are merged integrally. The small lift can be used for various light-duty lift machines with low speed and hoisting apparatuses and mainly comprises a threaded shaft, a drum and a pressure plate which can axially move, a plurality of friction plate boards, ratchet pawls, etc. The shaft is provided with external threads which are screwed toward front and opposite directions, and the drum and the pressure plate are provided with corresponding internal threads. When the shaft is rotated, the drum and the pressure plate oppositely move axially, and the friction plate boards clamped between the drum and the pressure plate are tightly pressed or loosened. The outer edges of the friction plate boards are provided with ratchets, the ratchets are engaged with the ratchet pawls in a unidirectional mode, and the ratchet pawls are hinged on the housing. The rotation of the shaft is driven by a crank or a reciprocating type operating part. Compared with the existing manually operated lift, the small lift has the advantages of simple structure and process, reliable brake and low cost.
Description
The utility model is manual or foot-operated small-sized lifter, can be used for various light-duty low-tach lifting machinery and weight-lifting equipment.
Existing Manual lifting machine tool all is to drive equipment by Transmissions such as gear, worm gear or oil cylinder, chains to promote weight, dispose various stop mechanisms or check valve in addition and brake, weight is opened stop mechanism reverse operating or open one-way throttle valve oil cylinder is bounced back gradually more earlier when descending.These mechanism's more complicated, volume is big, and part processing precision and cost are all higher, the inaccurate and repairing trouble in location during hydraulic system leakage.
The purpose of this utility model is to provide a kind of lifter that lifting mechanism and stop mechanism are combined, number of parts seldom, without detailed manufacture, braking has self-locking character, thus have simple in structure small and exquisite, braking is reliable, advantage with low cost.
The typical structure of lifter is seen accompanying drawing 1, it is mainly by the reel 2 that can move, be made up of forward and reverse externally threaded axle 6, tapped platen 5, friction lining plate 4, ratchet 3, housing 1 and crank 7, crank 7 also can change reciprocal operating parts 8 into, and part 8 usefulness accompanying drawings 2 are represented.Reel 2 also can be sprocket wheel or gear.Friction lining plate 4 is composite members that friction lining and metallic ring-plate are fixed together.
The endoporus of reel 2 is provided with forward (or oppositely) multiple screw thread, cooperate with cooresponding multiple screw thread on the axle 6, the endoporus of platen 5 is provided with oppositely (or forward) screw thread, cooperate with respective threads on the axle 6, accompany several friction lining plates 4 between reel and the platen, the outer rim of friction lining plate 4 has ratchet, ratchet and is hinged on ratchet 3 engagement on the housing 1, and the endoporus pine of friction lining plate is enclosed within on the shoulder of platen 5.When operating parts 7 axle drive shafts 6 forward rotation, multiple screw thread on the axle forces reel 2 pressing friction sheet plate 4 and platens 5, platen passes through the further pressing friction sheet of screw thread plate 4 under the friction moment effect, this moment axle 6, reel 2, friction lining plate 4 and the platen 5 common forward rotation that forms a whole, ratchet 3 skids the rope hoisting weight on the reel at the ratchet back of friction lining plate 4 simultaneously.When axle 6 stops operating, still be pressed on friction lining plate 4 and the platen 5 in weight moment loading lower mandrel member 2, but because the stopping function of ratchet 3, friction lining plate and reel can not contrarotations and locked.When axle 6 backward rotation, last screw thread makes reel 2 separate with platen 5, and friction lining plate 4 unclamps, then reel 2 under the weight effect followed by contrarotation, weight constantly descends.
Back and forth operating parts 8 is made up of ratchet 10, dihedral ratchet 11, fork 15, locating part 12 and extension spring 13.The fork bottom is two coaxial ring flat-plates 9, and pine clips ratchet 10 in the middle of the ring flat-plate, a client link of ratchet and axle 6, and dihedral ratchet 11 is hinged on the fork 15, ratchet 11 and ratchet 10 one way engagement under the pushing of spring 14.
When fork 15 is depressed, dihedral ratchet 11 drives ratchet 10 and axle 6 is rotated in the forward, drive reel 2 and rope hoisting weight, when fork unclamps, go up at extension spring 13 effect draft links, ratchet and pawl skids, and lifter is in braking mode, when the rear end that fork 15 is raised to dihedral ratchet 11 contacted with locating part 12, ratchet 11 broke away from ratchets 10.When weight descends, need be installed in the crank of axle 6 other ends or the backward rotation of power wheel and realize that this moment, back and forth operating parts 8 was inoperative.
Claims (4)
1, a kind of small-sized lifter that lifting mechanism and stop mechanism are combined is characterized in that it is made up of the reel 2 that can move, threaded shaft 6, friction lining plate 4, platen 5, ratchet 3 and operating parts 7 or 8 etc.
2, device according to claim 1, it is characterized in that having on the threaded shaft 6 positive and reverse return to two kinds of outside threads, the endoporus of reel 2 is provided with multiple screw thread forward or backwards, the endoporus of platen 5 is provided with oppositely or the forward negative thread, and the negative thread of reel and platen cooperates with corresponding outside thread on the axle respectively.
3, device according to claim 1 is characterized in that accompanying several friction lining plates 4 between reel 2 and the platen 5, and the outer rim of plate has ratchet, and the endoporus pine of plate is enclosed within on the shoulder of platen 5.
4, device according to claim 1, it is characterized in that reciprocal operating parts 8 is made up of ratchet 10, dihedral ratchet 11, fork 15, locating part 12 and extension spring 13 etc., the bottom of fork 15 is two coaxial annular slabs 9, pine clips ratchet 10 in the middle of the annular slab, and dihedral ratchet 11 is hinged on the fork 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92205172 CN2125575U (en) | 1992-03-27 | 1992-03-27 | Manually operated lift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92205172 CN2125575U (en) | 1992-03-27 | 1992-03-27 | Manually operated lift |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2125575U true CN2125575U (en) | 1992-12-23 |
Family
ID=4951406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92205172 Granted CN2125575U (en) | 1992-03-27 | 1992-03-27 | Manually operated lift |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2125575U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277438A (en) * | 2013-05-28 | 2013-09-04 | 无锡市恒畅起重物流机械有限公司 | Screw brake |
| CN106438785A (en) * | 2016-10-27 | 2017-02-22 | 长治清华机械厂 | Plugging crank mechanism |
| CN109571439A (en) * | 2018-12-29 | 2019-04-05 | 宁波赛普乐科技有限公司 | A kind of gantry robot and its method of adjustment convenient for position adjusting |
| CN110338987A (en) * | 2018-04-02 | 2019-10-18 | 丰田车体株式会社 | The wheelchair accommodating device of vehicle |
| CN114380222A (en) * | 2021-12-08 | 2022-04-22 | 深圳航天科技创新研究院 | Manual capstan |
-
1992
- 1992-03-27 CN CN 92205172 patent/CN2125575U/en active Granted
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277438A (en) * | 2013-05-28 | 2013-09-04 | 无锡市恒畅起重物流机械有限公司 | Screw brake |
| CN103277438B (en) * | 2013-05-28 | 2016-04-06 | 无锡市恒畅起重物流机械有限公司 | A kind of thread brake |
| CN106438785A (en) * | 2016-10-27 | 2017-02-22 | 长治清华机械厂 | Plugging crank mechanism |
| CN110338987A (en) * | 2018-04-02 | 2019-10-18 | 丰田车体株式会社 | The wheelchair accommodating device of vehicle |
| CN109571439A (en) * | 2018-12-29 | 2019-04-05 | 宁波赛普乐科技有限公司 | A kind of gantry robot and its method of adjustment convenient for position adjusting |
| CN109571439B (en) * | 2018-12-29 | 2023-09-29 | 宁波赛普乐科技有限公司 | Truss type robot convenient for position adjustment and adjustment method thereof |
| CN114380222A (en) * | 2021-12-08 | 2022-04-22 | 深圳航天科技创新研究院 | Manual capstan |
| CN114380222B (en) * | 2021-12-08 | 2023-09-12 | 深圳航天科技创新研究院 | Manual winch |
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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 |