CN203865947U - Winding type jack with crank anti-slide structure - Google Patents
Winding type jack with crank anti-slide structure Download PDFInfo
- Publication number
- CN203865947U CN203865947U CN201420265607.8U CN201420265607U CN203865947U CN 203865947 U CN203865947 U CN 203865947U CN 201420265607 U CN201420265607 U CN 201420265607U CN 203865947 U CN203865947 U CN 203865947U
- Authority
- CN
- China
- Prior art keywords
- crank
- swivel arm
- rotationally connected
- ratchet
- rotating arm
- 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 - Lifetime
Links
- 238000004804 winding Methods 0.000 title abstract 4
- 230000001174 ascending effect Effects 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000010485 coping Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
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- Transmission Devices (AREA)
Abstract
The utility model discloses a winding type jack with a crank anti-slide structure. The winding type jack with the crank anti-slide structure comprises a base, a screw rod is vertically fixed to the base, penetrates through a screw hole of a first connecting block and is matched with the screw hole, the first connecting block is rotationally connected with a first rotating arm and a second rotating arm, the first rotating arm is rotationally connected with a third rotating arm, the second rotating arm is rotationally connected with a fourth rotating arm, the third rotating arm and the fourth rotating arm are both rotationally connected with a second connecting block, a fixing block is arranged at the upper end of the screw rod, a through hole is transversely formed in the fixing block, a crank is arranged in the through hole in a penetrating mode, the crank is provided with two wire take-up wheels, at least one wire take-up wheel is provided with a ratchet wheel, the fixing block is provided with pawls, the ratchet wheel is matched with the pawls, grooves are formed in the crank, ejector blocks rotationally connected with the crank are arranged in the grooves, and the ejector blocks are connected with the grooves through springs. The winding type jack with the crank anti-slide structure is capable of ascending and descending rapidly when not in contact with heavy objects.
Description
Technical field
The utility model relates to a kind of jack, specifically a kind of takeup type jack with the anti-slip structure of crank.
Background technology
Jack is a kind of with lifting part as equipment, the light little weight-lifting equipment of jacking weight in stroke by top bracket or bottom claw in rigidity top.Jack is mainly used in the department 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 in the time that jack does not also touch weight, rise and fall slowly affect work efficiency very much.
Summary of the invention
The utility model, for prior art deficiency, provides a kind of takeup type jack with the anti-slip structure of crank, and this takeup type jack can fast speed rise and fall in the time 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 utility model is solved by following technical proposals: a kind of takeup type jack with the anti-slip structure of crank, comprise base, on described base, be vertically fixed with screw rod, described screw rod passes and coordinates with the screw of 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, described screw rod upper end is provided with fixed block, in described fixed block, be horizontally arranged with through hole, in described through hole, be equipped with crank, on described 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 fixed block, be provided with ratchet, described ratchet and described click-fit, on described crank, be provided with groove, in described groove, be provided with the jacking block being rotationally connected with crank, described jacking block is connected by spring with described groove.The jack of this structure in use, in the time that not touching weight, jack upper end rotates by rotating crank, make the second contiguous block fast rise that the second contiguous block is contacted with weight, rotation and crank by the first contiguous block after the second contiguous block touches weight rotate jointly by weight jack-up, because the cooperation crank of click can not rotate backward, in the time that crank slides into control position, jacking block ejects and withstands fixed block, prevent that crank slip from causing weight to fall accidents caused, in the time that crank need to rotate backward, by crank being slided and can make ratchet and ratchet depart from again after coping block.
In technique scheme, preferred, described ratchet one side is provided with and leans piece.Because the reversal interlocking relay of jack is very large, ratchet can bear very large power, therefore arranges and leans piece ratchet is withstood.
In technique scheme, preferred, in described through hole, be provided with bearing.Bearing is set makes crank rotation lighter.
The utility model compared with prior art, has following beneficial effect: this takeup type jack of the utility model can fast speed rise and fall in the time not touching weight, and after touching weight rising jack-up weight at a slow speed.
Brief description of the drawings
Fig. 1 is the integral structure schematic diagram of the utility model embodiment.
Fig. 2 is the structural representation of the utility model base connecting crank.
Fig. 3 is that the A-A at ratchet place in Fig. 2 is to schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the utility model is described in further detail: referring to Fig. 1 to Fig. 3, a kind of takeup type jack with the anti-slip structure of crank, comprise base 1, on described base 1, be vertically fixed with screw rod 2, described screw rod 2 passes and coordinates with the screw (not shown on figure) of 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, described screw rod 2 upper ends are provided with fixed block 9, in described fixed block 9, be horizontally arranged with through hole (not shown on figure), in described through hole, be equipped with crank 10, on described 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 fixed block 9, be provided with ratchet 14, described ratchet 13 coordinates with described ratchet 14.
Described ratchet 14 1 sides are provided with and lean piece 15.Because the reversal interlocking relay of jack is very large, ratchet 14 can bear very large power, therefore arranges and leans piece 15 ratchet 14 is withstood.
In described through hole, be provided with bearing.Bearing is set makes crank rotation lighter.
The jack of this structure in use, in the time that not touching weight, jack upper end rotates by rotating crank 10, make the second contiguous block 8 fast rise that the second contiguous block 8 is contacted with weight, rotation and crank 10 by the first contiguous block 3 after the second contiguous block 8 touches weight rotate jointly by weight jack-up, because the cooperation 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 crank 10 is slided ratchet 13 is no longer coordinated with ratchet 14 in through hole, crank 10 just can rotate backward like this, in order to prevent that crank 10 in use from sliding, on described crank 10, be provided with groove 16, in described groove 16, be provided with the jacking block 17 being rotationally connected with crank 10, described jacking block 17 is connected by spring 18 with described groove 16, in the time that crank 10 slides into control position, jacking block 17 ejects and withstands fixed block 9, prevent that crank 10 slips from causing weight to fall accidents caused, in the time that crank 10 need to rotate backward, can make ratchet 13 and ratchet 14 depart from by again crank 10 being slided after coping block 17.
Claims (3)
1. one kind has the takeup type jack of the anti-slip structure of crank, it is characterized in that: comprise base (1), on described base (1), be vertically fixed with screw rod (2), described screw rod (2) passes and coordinates with the screw of 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), described screw rod (2) upper end is provided with fixed block (9), described fixed block is horizontally arranged with through hole in (9), in described through hole, be equipped with crank (10), on described 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 fixed block (9), be provided with ratchet (14), described ratchet (13) coordinates with described ratchet (14), on described crank (10), be provided with groove (16), in described groove (16), be provided with the jacking block (17) being rotationally connected with crank (10), described jacking block (17) is connected by spring (18) with described groove (16).
2. a kind of takeup type jack with the anti-slip structure of crank as claimed in claim 1, is characterized in that: described ratchet (14) one sides are provided with and lean piece (15).
3. a kind of takeup type jack with the anti-slip structure of crank 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 |
|---|---|---|---|
| CN201420265607.8U CN203865947U (en) | 2014-05-23 | 2014-05-23 | Winding type jack with crank anti-slide structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420265607.8U CN203865947U (en) | 2014-05-23 | 2014-05-23 | Winding type jack with crank anti-slide structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203865947U true CN203865947U (en) | 2014-10-08 |
Family
ID=51646926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420265607.8U Expired - Lifetime CN203865947U (en) | 2014-05-23 | 2014-05-23 | Winding type jack with crank anti-slide structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203865947U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103979453A (en) * | 2014-05-23 | 2014-08-13 | 宁波天益齿轴齿轮有限公司 | Winding-type jack with crank anti-slide mechanism |
-
2014
- 2014-05-23 CN CN201420265607.8U patent/CN203865947U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103979453A (en) * | 2014-05-23 | 2014-08-13 | 宁波天益齿轴齿轮有限公司 | Winding-type jack with crank anti-slide mechanism |
| CN103979453B (en) * | 2014-05-23 | 2016-05-11 | 宁波天益齿轴齿轮有限公司 | A kind of takeup type jack with the anti-slip structure of crank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |