CN103979455A - Coiling type shear-like lifting jack - Google Patents
Coiling type shear-like lifting jack Download PDFInfo
- Publication number
- CN103979455A CN103979455A CN201410219592.6A CN201410219592A CN103979455A CN 103979455 A CN103979455 A CN 103979455A CN 201410219592 A CN201410219592 A CN 201410219592A CN 103979455 A CN103979455 A CN 103979455A
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- China
- Prior art keywords
- swivel arm
- crank
- rotating arm
- jack
- ratchet
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Abstract
The invention discloses a coiling type shear-like lifting jack. The coiling type shear-like lifting jack comprises a first connecting block, and the first connecting block is rotatably 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 first rotating arm is provided with a fixing block, a through hole is horizontally formed inside the fixing block, and a first crankshaft penetrates the through hole and is provided with a take-up pulley; a steel cable is fixedly arranged on the take-up pulley, the other end of the steel cable is provided with a screw, and the screw penetrates a screw hole in the fourth rotating arm and connected with a second crankshaft; the first crankshaft is provided with a slot, and an ejecting block which is rotatably connected with the first crankshaft is arranged inside the slot and connected with the slot through a spring. The coiling type shear-like lifting jack can rapidly move up and down when not in contact with a weight and jack up the weight at a low speed when in contact with the weight.
Description
Technical field
The present invention relates to a kind of jack, specifically takeup type scissor-like jack.
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 scissor-like jack, and therefore in the time that scissor-like 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 scissor-like jack 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: takeup type scissor-like jack, comprise 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 the first swivel arm, be provided with fixed block, in described 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 take-up pulley, on described take-up pulley, be fixed with cable wire, the other end of described cable wire is connected with screw rod, described screw rod is through the screw on described the 4th swivel arm, described screw rod is connected with the second crank, on described take-up pulley, be provided with ratchet, on described fixed block, be provided with ratchet, described ratchet and described click-fit, on described the first crank, be provided with groove, in described groove, be provided with the jacking block being rotationally connected with the first crank, described jacking block is connected by spring with described groove.
In technique scheme, preferred, described ratchet one side is provided with and leans piece.Because ratchet is stressed larger, therefore arrange and lean piece.
In technique scheme, preferred, in described through hole, be provided with bearing, bearing is set and makes the first crank rotation convenient.
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 at the present invention the first crank place.
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, takeup type scissor-like jack, comprise the first contiguous block 1, described the first contiguous block 1 is rotatably connected to the first swivel arm 2 and the second swivel arm 3, described the first swivel arm 2 and the 3rd swivel arm 4 are rotationally connected, described the second swivel arm 3 and the 4th swivel arm 5 are rotationally connected, described the 3rd swivel arm 4 is all rotationally connected with the second contiguous block 6 with described the 4th swivel arm 5, on described the first swivel arm 2, be provided with fixed block 7, in described fixed block 7, be horizontally arranged with through hole, in described through hole, be equipped with the first crank 8, on described the first crank 8, be provided with take-up pulley 9, on described take-up pulley 9, be fixed with cable wire 10, the other end of described cable wire 10 is connected with screw rod 11, described screw rod 11 is through the screw on described the 4th swivel arm 5, described screw rod 11 is connected with the second crank 12, on described take-up pulley 9, be provided with ratchet 13, on described fixed block 7, 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 the first crank rotation lighter.
The jack of this structure in use, in the time that not touching weight, jack upper end rotates by rotating the first crank 8, the second contiguous block 6 fast rise are contacted with weight, after the second contiguous block 6 touches weight, continue the second contiguous block 6 up to promote by rotating the second crank 12, after jack uses, first rotating the second crank 12 does not down move to the second contiguous block 6 to contact with weight, again the first crank 8 is slided ratchet 13 is no longer coordinated with ratchet 14 in through hole, such the first crank 8 just can rotate backward, in order to prevent that the first crank 8 in use from sliding, on described the first crank 8, be provided with groove 16, in described groove 16, be provided with the jacking block 17 being rotationally connected with the first crank 8, described jacking block 17 is connected by spring 18 with described groove 16, in the time that the first crank 8 slides into control position, jacking block 17 ejects and withstands fixed block 7, prevent that the first crank 8 slips from causing weight to fall accidents caused, in the time that the first crank 8 need to rotate backward, can make ratchet 13 and ratchet 14 depart from by again the first crank 8 being slided after coping block 17.
Claims (3)
1. takeup type scissor-like jack, it is characterized in that: comprise the first contiguous block (1), described the first contiguous block (1) is rotatably connected to the first swivel arm (2) and the second swivel arm (3), described the first swivel arm (2) is rotationally connected with the 3rd swivel arm (4), described the second swivel arm (3) is rotationally connected with the 4th swivel arm (5), described the 3rd swivel arm (4) is all rotationally connected with the second contiguous block (6) with described the 4th swivel arm (5), on described the first swivel arm (2), be provided with fixed block (7), described fixed block is horizontally arranged with through hole in (7), in described through hole, be equipped with the first crank (8), on described the first crank (8), be provided with take-up pulley (9), on described take-up pulley (9), be fixed with cable wire (10), the other end of described cable wire (10) is connected with screw rod (11), described screw rod (11) is through the screw on described the 4th swivel arm (5), described screw rod (11) is connected with the second crank (12), on described take-up pulley (9), be provided with ratchet (13), on described fixed block (7), be provided with ratchet (14), described ratchet (13) coordinates with described ratchet (14), on described the first crank (8), be provided with groove (16), in described groove (16), be provided with the jacking block (17) being rotationally connected with the first crank (8), described jacking block (17) is connected by spring (18) with described groove (16).
2. takeup type scissor-like jack as claimed in claim 1, is characterized in that: described ratchet (14) one sides are provided with and lean piece (15).
3. takeup type scissor-like 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 |
|---|---|---|---|
| CN201410219592.6A CN103979455B (en) | 2014-05-23 | 2014-05-23 | Takeup type scissor-like jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410219592.6A CN103979455B (en) | 2014-05-23 | 2014-05-23 | Takeup type scissor-like jack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103979455A true CN103979455A (en) | 2014-08-13 |
| CN103979455B CN103979455B (en) | 2016-01-06 |
Family
ID=51271669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410219592.6A Active CN103979455B (en) | 2014-05-23 | 2014-05-23 | Takeup type scissor-like jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103979455B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105366311A (en) * | 2015-11-26 | 2016-03-02 | 安徽六国化工股份有限公司 | Device facilitating disassembly and assembly of lower supporting roller of air cushion type belt conveyor |
| CN107500205A (en) * | 2017-07-22 | 2017-12-22 | 合肥亚美科技股份有限公司 | A kind of scissor aerial work platform |
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 |
| CN203865950U (en) * | 2014-05-23 | 2014-10-08 | 宁波天益齿轴齿轮有限公司 | Coiling type scissor jack |
-
2014
- 2014-05-23 CN CN201410219592.6A patent/CN103979455B/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 |
| CN203865950U (en) * | 2014-05-23 | 2014-10-08 | 宁波天益齿轴齿轮有限公司 | Coiling type scissor jack |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105366311A (en) * | 2015-11-26 | 2016-03-02 | 安徽六国化工股份有限公司 | Device facilitating disassembly and assembly of lower supporting roller of air cushion type belt conveyor |
| CN107500205A (en) * | 2017-07-22 | 2017-12-22 | 合肥亚美科技股份有限公司 | A kind of scissor aerial work platform |
| CN107500205B (en) * | 2017-07-22 | 2019-03-22 | 合肥亚美科技股份有限公司 | A kind of scissor aerial work platform |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103979455B (en) | 2016-01-06 |
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| 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 |