CN103979451A - Coiling type lifting jack - Google Patents
Coiling type lifting jack Download PDFInfo
- Publication number
- CN103979451A CN103979451A CN201410219607.9A CN201410219607A CN103979451A CN 103979451 A CN103979451 A CN 103979451A CN 201410219607 A CN201410219607 A CN 201410219607A CN 103979451 A CN103979451 A CN 103979451A
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- China
- Prior art keywords
- swivel arm
- ratchet
- screw rod
- rotating arm
- crank
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Abstract
The invention discloses a coiling type lifting jack. The coiling type lifting jack comprises a base, the base is provided with a screw lifting mechanism, and a screw is vertically arranged inside the screw lifting mechanism and connected with a first connecting block; the first connecting block is connected with a first rotating arm and a second rotating arm, the first rotating arm is rotatably connected with a third rotating arm, the second rotating arm is rotatably connected with a fourth rotating arm, and the third rotating arm and the fourth rotating arm are both rotatably connected with a second connecting block; the base is also provided with a straight rod, the upper end of the straight rod is provided with a first fixing block, a through is horizontally formed inside the first fixing block, a first crank shaft penetrates the through hole and is provided with two take-up pulleys, the two take-up pulleys are fixedly provided with steel cables, and the other ends of the two steel cables are fixedly connected with any rotating arms on the both sides; at least one take-up pulley is provided with a ratchet wheel, and the first fixing block is provided with a pawl matched with the ratchet wheel. The coiling type shear-like lifting jack can rapidly move up and down when not in contact with a weight.
Description
Technical field
The present invention relates to a kind of jack, specifically takeup type jack.
Background technology
Jack is a kind ofly with rigidity top, to lift part as equipment, the light little weight-lifting equipment of jacking weight in stroke by top bracket or bottom claw.Jack is mainly used in the departments such as factories and miness, communications and transportation as work such as Mechanical Help and other lifting, supports.Its structure is firm, flexibility and reliability lightly, and a people is portability and operation.
Generally in use, jack-up and the speed falling are quite slow for existing jack, and therefore when jack does not also touch weight, rise and fall slowly affect work efficiency very much.
Summary of the invention
The present invention is directed to prior art deficiency, takeup type jack is provided, this takeup type jack can fast speed rise and fall when not touching weight, and after touching weight rising jack-up weight at a slow speed.
In order to solve the problems of the technologies described above, the present invention is solved by following technical proposals: takeup type jack, comprise base, on described base, be provided with screw rod hoister structure, in described screw rod hoister structure, vertically there is screw rod, described screw rod is connected with the first contiguous block, described the first contiguous block is rotatably connected to the first swivel arm and the second swivel arm, described the first swivel arm and the 3rd swivel arm are rotationally connected, described the second swivel arm and the 4th swivel arm are rotationally connected, described the 3rd swivel arm and described the 4th swivel arm are all rotationally connected with the second contiguous block, on described base, be also provided with straight-bar, described straight-bar upper end is provided with the first fixed block, in described the first fixed block, be horizontally arranged with through hole, in described through hole, be equipped with the first crank, on described the first crank, be provided with two take-up pulleies, on two described take-up pulleies, be all fixed with cable wire, the other end of two described cable wires is fixedly connected with any described swivel arm of both sides respectively, described at least one, on take-up pulley, be provided with ratchet, on described the first fixed block, be provided with ratchet, described ratchet and described click-fit.The jack of this structure in use, when touching weight, jack upper end do not rotate by rotating the first crank, make the second contiguous block fast rise that the second contiguous block is contacted with weight, cooperation first crank of click after touching weight, the second contiguous block rotates jointly by weight jack-up by screw rod hoister structure and the first crank, owing to can not rotate backward.
In technique scheme, preferably, described screw rod hoister structure comprises the second fixed block, in described the second fixed block, be provided with cavity, in described cavity, be provided with the first finishing bevel gear cuter coordinating with described screw rod and the second finishing bevel gear cuter coordinating with the first finishing bevel gear cuter, on described the second finishing bevel gear cuter, be provided with the second crank.
In technique scheme, preferred, described ratchet one side is provided with and leans piece.
In technique scheme, preferred, in described through hole, be provided with bearing.
The present invention compared with prior art, has following beneficial effect: this takeup type jack of the present invention can fast speed rise and fall when not touching weight, and after touching weight rising jack-up weight at a slow speed.
Accompanying drawing explanation
Fig. 1 is the integral structure schematic diagram of the embodiment of the present invention.
Fig. 2 is the structural representation of embodiment of the present invention other direction.
Fig. 3 is that the A-A at ratchet place in Fig. 2 is to schematic diagram.
The specific embodiment
Below in conjunction with accompanying drawing and the specific embodiment, the present invention is described in further detail: referring to Fig. 1 to Fig. 3, takeup type jack, comprise base 1, on described base 1, be provided with screw rod hoister structure 11, described screw rod hoister structure 110 is interior vertically screw rod 2, described screw rod 2 is connected with the first contiguous block 3, described the first contiguous block 3 is rotatably connected to the first swivel arm 4 and the second swivel arm 5, described the first swivel arm 4 and the 3rd swivel arm 6 are rotationally connected, described the second swivel arm 5 and the 4th swivel arm 7 are rotationally connected, described the 3rd swivel arm 6 is all rotationally connected with the second contiguous block 8 with described the 4th swivel arm 7, on described base 1, be also provided with straight-bar 120, described straight-bar 120 upper ends are provided with the first fixed block 9, in described the first fixed block 9, be horizontally arranged with through hole, in described through hole, be equipped with the first crank 10, on described the first crank 10, be provided with two take-up pulleies 11, on two described take-up pulleies 11, be all fixed with cable wire 12, the other end of two described cable wires 12 respectively with any described swivel arm 4 of both sides, 5, 6, 7 are fixedly connected with, described at least one, on take-up pulley 11, be provided with ratchet 13, on described the first fixed block 9, be provided with ratchet 14, described ratchet 13 coordinates with described ratchet 14.
Described screw rod hoister structure 110 comprises the second fixed block 111, in described the second fixed block 111, be provided with cavity 112, in described cavity 112, be provided with the first finishing bevel gear cuter 113 coordinating with described screw rod 2 and the second finishing bevel gear cuter 114 coordinating with the first finishing bevel gear cuter 113, on described the second finishing bevel gear cuter 114, be provided with the second crank 115.Therefore described ratchet 14 1 sides are provided with and lean piece 15, because the reversal interlocking relay of 13 pairs of ratchets 14 of ratchet is very large, arrange and lean piece 15 ratchet 14 is withstood.In described through hole, be provided with bearing.
The jack of this structure in use, when touching weight, jack upper end do not rotate by rotating the first crank 10, the second contiguous block 8 fast rise are contacted with weight, rotation by the second crank 115 after the second contiguous block 8 touches weight and the first crank 10 rotate jointly by weight jack-up, because cooperation first crank 10 of ratchet 13 ratchets 14 can not rotate backward, after jack uses, first rotate the first contiguous block 3 until the second contiguous block 8 does not contact with weight, again the first crank 10 is slided ratchet 13 is no longer coordinated with ratchet 14 in through hole, such the first crank 10 just can rotate backward, in order to prevent that the first crank 10 in use from sliding, on described the first crank 10, be provided with groove 16, in described groove 16, be provided with the jacking block 17 being rotationally connected with the first crank 10, described jacking block 17 is connected by spring 18 with described groove 16, when the first crank 10 slides into control position, jacking block 17 ejects and withstands the first fixed block 9, prevent that the first crank 10 slips from causing weight to fall accidents caused, when the first crank 10 need to rotate backward, by again the first crank 10 being slided and can make ratchet 13 and ratchet 14 depart from after coping block 17.
Claims (4)
1. takeup type jack, it is characterized in that: comprise base (1), on described base (1), be provided with screw rod hoister structure (110), in described screw rod hoister structure (110), vertically there is screw rod (2), described screw rod (2) is connected with the first contiguous block (3), described the first contiguous block (3) is rotatably connected to the first swivel arm (4) and the second swivel arm (5), described the first swivel arm (4) is rotationally connected with the 3rd swivel arm (6), described the second swivel arm (5) is rotationally connected with the 4th swivel arm (7), described the 3rd swivel arm (6) is all rotationally connected with the second contiguous block (8) with described the 4th swivel arm (7), on described base (1), be also provided with straight-bar (120), described straight-bar (120) upper end is provided with the first fixed block (9), in described the first fixed block (9), be horizontally arranged with through hole, in described through hole, be equipped with the first crank (10), on described the first crank (10), be provided with two take-up pulleies (11), on two described take-up pulleies (11), be all fixed with cable wire (12), the other end of two described cable wires (12) respectively with any described swivel arm (4 of both sides, 5, 6, 7) be fixedly connected with, on take-up pulley described at least one (11), be provided with ratchet (13), on described the first fixed block (9), be provided with ratchet (14), described ratchet (13) coordinates with described ratchet (14).
2. takeup type jack as claimed in claim 1, it is characterized in that: described screw rod hoister structure (110) comprises the second fixed block (111), in described the second fixed block (111), be provided with cavity (112), in described cavity (112), be provided with the first finishing bevel gear cuter (113) coordinating with described screw rod (2) and the second finishing bevel gear cuter (114) coordinating with the first finishing bevel gear cuter (113), on described the second finishing bevel gear cuter (114), be provided with the second crank (115).
3. takeup type jack as claimed in claim 1, is characterized in that: described ratchet (14) one sides are provided with and lean piece (15).
4. takeup type jack as claimed in claim 1, is characterized in that: in described through hole, be provided with bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410219607.9A CN103979451B (en) | 2014-05-23 | 2014-05-23 | Takeup type jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410219607.9A CN103979451B (en) | 2014-05-23 | 2014-05-23 | Takeup type jack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103979451A true CN103979451A (en) | 2014-08-13 |
| CN103979451B CN103979451B (en) | 2016-05-11 |
Family
ID=51271665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410219607.9A Active CN103979451B (en) | 2014-05-23 | 2014-05-23 | Takeup type jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103979451B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1191802A (en) * | 1968-04-11 | 1970-05-13 | Tangyes Ltd | Improvements in Jacks |
| DE3439293A1 (en) * | 1983-11-04 | 1985-05-23 | Casco Division of Sun Chemical Corp., Bridgeport, Conn. | ACTUATING DEVICE FOR A LIFT |
| FR2558817A1 (en) * | 1984-01-26 | 1985-08-02 | Astra Ets Florimond Chabardes | Improvements to systems for driving the screws of scissor jacks. |
| CN2255973Y (en) * | 1996-07-15 | 1997-06-11 | 曹文江 | Hydraulic vehicle lift with rotary platform |
| CN201010484Y (en) * | 2006-10-20 | 2008-01-23 | 孟咸彬 | Lifting discharging vehicle |
| CN203865949U (en) * | 2014-05-23 | 2014-10-08 | 宁波天益齿轴齿轮有限公司 | Coiling type jack |
-
2014
- 2014-05-23 CN CN201410219607.9A patent/CN103979451B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1191802A (en) * | 1968-04-11 | 1970-05-13 | Tangyes Ltd | Improvements in Jacks |
| DE3439293A1 (en) * | 1983-11-04 | 1985-05-23 | Casco Division of Sun Chemical Corp., Bridgeport, Conn. | ACTUATING DEVICE FOR A LIFT |
| FR2558817A1 (en) * | 1984-01-26 | 1985-08-02 | Astra Ets Florimond Chabardes | Improvements to systems for driving the screws of scissor jacks. |
| CN2255973Y (en) * | 1996-07-15 | 1997-06-11 | 曹文江 | Hydraulic vehicle lift with rotary platform |
| CN201010484Y (en) * | 2006-10-20 | 2008-01-23 | 孟咸彬 | Lifting discharging vehicle |
| CN203865949U (en) * | 2014-05-23 | 2014-10-08 | 宁波天益齿轴齿轮有限公司 | Coiling type jack |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103979451B (en) | 2016-05-11 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |