CN103979453A - Winding-type jack with crank anti-slide mechanism - Google Patents
Winding-type jack with crank anti-slide mechanism Download PDFInfo
- Publication number
- CN103979453A CN103979453A CN201410219696.7A CN201410219696A CN103979453A CN 103979453 A CN103979453 A CN 103979453A CN 201410219696 A CN201410219696 A CN 201410219696A CN 103979453 A CN103979453 A CN 103979453A
- Authority
- CN
- China
- Prior art keywords
- crank
- swivel arm
- rotationally connected
- ratchet
- block
- 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
Links
Landscapes
- Transmission Devices (AREA)
Abstract
The invention discloses a winding-type jack with a crank anti-slide mechanism. The winding-type jack comprises a base, wherein the screw-rod lifting mechanism is arranged on the base; a screw rod is vertically arranged in the screw-rod lifting mechanism; the screw rod penetrates through the screw hole of a first connection block and matches with the same; the first connection block is rotationally connected with a first rotary arm and a second rotary arm; the first rotary arm is rotationally connected with a third rotary arm; the second rotary arm is rotationally connected with a forth rotary arm; both of the third rotary arm and the fourth rotary arm are rotationally connected with a second connection block; a fixed block is arranged at the upper end of the screw rod; a through hole is transversally formed in the fixed block; a crank penetrates in the through hole; two winding wheels are arranged on the crank; a ratchet wheel is arranged on at least one winding wheel; a pawl is arranged on the first fixed block; the ratchet wheel is matched with the pawl; a groove is formed in the crank; an ejection block rotationally connected with the crank is arranged in the groove; the ejection block is connected with the groove by a spring. The winding-type jack disclosed by the invention is capable of rapidly ascending and descending while not contacting with a heavy object.
Description
Technical field
The present invention 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 present invention is directed to prior art deficiency, a kind of takeup type jack with the anti-slip structure of crank is provided, 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 present invention 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 present invention compared with prior art, has following beneficial effect: this takeup type jack of the present invention 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 embodiment of the present invention.
Fig. 2 is the structural representation of base connecting crank of the present invention.
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 present invention 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 |
|---|---|---|---|
| CN201410219696.7A CN103979453B (en) | 2014-05-23 | 2014-05-23 | A kind of takeup type jack with the anti-slip structure of crank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410219696.7A CN103979453B (en) | 2014-05-23 | 2014-05-23 | A kind of takeup type jack with the anti-slip structure of crank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103979453A true CN103979453A (en) | 2014-08-13 |
| CN103979453B CN103979453B (en) | 2016-05-11 |
Family
ID=51271667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410219696.7A Active CN103979453B (en) | 2014-05-23 | 2014-05-23 | A kind of takeup type jack with the anti-slip structure of crank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103979453B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH082887A (en) * | 1994-06-16 | 1996-01-09 | Hirotsuku Tekunika Kk | Elevating device |
| CN201261701Y (en) * | 2008-08-06 | 2009-06-24 | 李松洲 | Ratchet type jack |
| CN203237973U (en) * | 2013-03-14 | 2013-10-16 | 天津恒为源汽车装备设计有限公司 | Portable lifting jack |
| CN203382445U (en) * | 2013-08-12 | 2014-01-08 | 浙江机电职业技术学院 | Vehicle-mounted one-way ratchet wheel type jack |
| CN203865947U (en) * | 2014-05-23 | 2014-10-08 | 宁波天益齿轴齿轮有限公司 | Winding type jack with crank anti-slide structure |
-
2014
- 2014-05-23 CN CN201410219696.7A patent/CN103979453B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH082887A (en) * | 1994-06-16 | 1996-01-09 | Hirotsuku Tekunika Kk | Elevating device |
| CN201261701Y (en) * | 2008-08-06 | 2009-06-24 | 李松洲 | Ratchet type jack |
| CN203237973U (en) * | 2013-03-14 | 2013-10-16 | 天津恒为源汽车装备设计有限公司 | Portable lifting jack |
| CN203382445U (en) * | 2013-08-12 | 2014-01-08 | 浙江机电职业技术学院 | Vehicle-mounted one-way ratchet wheel type jack |
| CN203865947U (en) * | 2014-05-23 | 2014-10-08 | 宁波天益齿轴齿轮有限公司 | Winding type jack with crank anti-slide structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103979453B (en) | 2016-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204417872U (en) | A kind of automatic lifting/lowering airing lever | |
| CN203144037U (en) | Elevating device with handrail | |
| CN204138268U (en) | A kind of lifting table | |
| CN203682801U (en) | Remote real-time monitoring system of elevator | |
| CN207175343U (en) | A kind of exterior wall finishing lifting type workbench | |
| CN203865948U (en) | Winding type jack provided with crank anti-slip structure | |
| CN203865945U (en) | Winding type jack with screw rod lifting mechanism | |
| CN203865947U (en) | Winding type jack with crank anti-slide structure | |
| CN203667521U (en) | Tire tread storage shutter vehicle shutter plate turning device | |
| CN103979455B (en) | Takeup type scissor-like jack | |
| CN203865951U (en) | Winding type scissor jack | |
| CN203865950U (en) | Coiling type scissor jack | |
| CN203865949U (en) | Coiling type jack | |
| CN103693421A (en) | Turning device for tread storage book truck | |
| CN103979453A (en) | Winding-type jack with crank anti-slide mechanism | |
| CN103979454A (en) | Winding-type jack with screw-rod lifting mechanism | |
| CN203865946U (en) | Winding type jack | |
| CN103979451B (en) | Takeup type jack | |
| CN103979452B (en) | There is the takeup type jack of the anti-slip structure of crank | |
| CN203865944U (en) | Shear-type jack | |
| CN203865943U (en) | Scissor jack capable of rapidly ascending and descending | |
| CN204473687U (en) | A kind of shelf roller-way | |
| CN204302555U (en) | One is exempted to step on bar Optical hanger and is added hang device | |
| CN203612736U (en) | Self-locking hand winder | |
| CN203332935U (en) | Transfer machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |