CN103979455B - Takeup type scissor-like jack - Google Patents
Takeup type scissor-like jack Download PDFInfo
- Publication number
- CN103979455B CN103979455B CN201410219592.6A CN201410219592A CN103979455B CN 103979455 B CN103979455 B CN 103979455B CN 201410219592 A CN201410219592 A CN 201410219592A CN 103979455 B CN103979455 B CN 103979455B
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- China
- Prior art keywords
- swivel arm
- crank
- jack
- block
- ratchet
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Abstract
The invention discloses takeup type scissor-like jack, comprise the first contiguous block, first contiguous block is rotatably connected to the first swivel arm and the second swivel arm, first swivel arm and the 3rd swivel arm are rotationally connected, second swivel arm and the 4th swivel arm are rotationally connected, 3rd swivel arm and the 4th swivel arm are all rotationally connected with the second contiguous block, first swivel arm is provided with fixed block, through hole is horizontally arranged with in fixed block, the first crank is equipped with in through hole, first crank is provided with take-up pulley, take-up pulley is fixed with cable wire, the other end of cable wire is connected with screw rod, screw rod is through the screw on the 4th swivel arm, screw rod is connected with the second crank, described first crank is provided with groove, the jacking block be connected with the first crank is provided with in described groove, described jacking block is connected by spring with described groove.This takeup type jack of the present invention can the fast speed rise and fall when not touching weight, and after touching weight rising jack-up weight at a slow speed.
Description
Technical field
The present invention relates to a kind of jack, specifically takeup type scissor-like jack.
Background technology
Jack is that part is lifted as equipment, the light little weight-lifting equipment of jacking weight in stroke by top bracket or bottom claw in one rigidity top.Jack is mainly used in the department such as factories and miness, communications and transportation as Mechanical Help and other work such as lifting, support.Its light structure is firm, flexibility and reliability, and a people can carry and operate.
Existing scissor-like jack is general in use, and jack-up and the speed fallen are quite slow, and therefore when scissor-like jack does not also touch weight, rise and fall slowly very affect work efficiency.
Summary of the invention
The present invention is directed to prior art deficiency, provide takeup type scissor-like jack, this takeup type jack can the 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 scissor-like jack, comprise the first contiguous block, described first contiguous block is rotatably connected to the first swivel arm and the second swivel arm, described first swivel arm and the 3rd swivel arm are rotationally connected, described second swivel arm and the 4th swivel arm are rotationally connected, described 3rd swivel arm and described 4th swivel arm are all rotationally connected with the second contiguous block, described first swivel arm is provided with fixed block, through hole is horizontally arranged with in described fixed block, the first crank is equipped with in described through hole, described first crank is provided with take-up pulley, described take-up pulley is 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 4th swivel arm, described screw rod is connected with the second crank, described take-up pulley is provided with ratchet, described fixed block is provided with ratchet, described ratchet and described click-fit, described first crank is provided with groove, the jacking block be connected with the first crank is provided with in described groove, described jacking block is connected by spring with described groove.
In technique scheme, preferably, described ratchet side is provided with and leans block.Because ratchet is stressed comparatively large, therefore arranges and lean block.
In technique scheme, preferably, in described through hole, be provided with bearing, bearing be set and make the first crank convenient.
The present invention compared with prior art, has following beneficial effect: this takeup type jack of the present invention can the 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 at the present invention 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: see Fig. 1 to Fig. 3, takeup type scissor-like jack, comprise the first contiguous block 1, described first contiguous block 1 is rotatably connected to the first swivel arm 2 and the second swivel arm 3, described first swivel arm 2 and the 3rd swivel arm 4 are rotationally connected, described second swivel arm 3 and the 4th swivel arm 5 are rotationally connected, described 3rd swivel arm 4 is all rotationally connected with the second contiguous block 6 with described 4th swivel arm 5, described first swivel arm 2 is provided with fixed block 7, through hole is horizontally arranged with in described fixed block 7, the first crank 8 is equipped with in described through hole, described first crank 8 is provided with take-up pulley 9, described take-up pulley 9 is 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 4th swivel arm 5, described screw rod 11 is connected with the second crank 12, described take-up pulley 9 is provided with ratchet 13, described fixed block 7 is provided with ratchet 14, described ratchet 13 coordinates with described ratchet 14.
Described ratchet 14 side is provided with and leans block 15.Because the reversal interlocking relay of jack is very large, ratchet 14 can bear very large power, therefore arranges to lean block 15 and withstood by ratchet 14.
Bearing is provided with in described through hole.Arranging bearing makes the first crank lighter.
The jack of this structure in use, rotated by rotation first crank 8 when jack upper end does not touch weight, make the second contiguous block 6 increase fast to contact with weight, continue the second contiguous block 6 up to promote by rotation second crank 12 after the second contiguous block 6 touches weight, after jack uses, first rotate the second crank 12 second contiguous block 6 down to be moved to do not contact with weight, being slided in through hole by first crank 8 makes ratchet 13 no longer coordinate with ratchet 14 again, such first crank 8 just can rotate backward, slide to prevent the first crank 8 in use, described first crank 8 is provided with groove 16, the jacking block 17 be rotationally connected with the first crank 8 is provided with in described groove 16, described jacking block 17 is connected by spring 18 with described groove 16, when the first crank 8 slides into control position, jacking block 17 ejects and withstands fixed block 7, prevent the first crank 8 slip from causing weight to fall accidents caused, when the first crank 8 needs to rotate backward, ratchet 13 and ratchet 14 can be made to depart from by being slided by the first crank 8 again after coping block 17.
Claims (1)
1. takeup type scissor-like jack, it is characterized in that: comprise the first contiguous block (1), described first contiguous block (1) is rotatably connected to the first swivel arm (2) and the second swivel arm (3), described first swivel arm (2) and the 3rd swivel arm (4) are rotationally connected, described second swivel arm (3) and the 4th swivel arm (5) are rotationally connected, described 3rd swivel arm (4) and described 4th swivel arm (5) are all rotationally connected with the second contiguous block (6), described first swivel arm (2) is provided with fixed block (7), described fixed block is horizontally arranged with through hole in (7), the first crank (8) is equipped with in described through hole, described first crank (8) is provided with take-up pulley (9), described take-up pulley (9) is 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 4th swivel arm (5), described screw rod (11) is connected with the second crank (12), described take-up pulley (9) is provided with ratchet (13), described fixed block (7) is provided with ratchet (14), described ratchet (13) coordinates with described ratchet (14), described first crank (8) is provided with groove (16), the jacking block (17) be rotationally connected with the first crank (8) is provided with in described groove (16), described jacking block (17) is connected by spring (18) with described groove (16), described ratchet (14) side is provided with and leans block (15), bearing is provided with in described through hole.
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 CN103979455A (en) | 2014-08-13 |
| CN103979455B true 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) |
Families Citing this family (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 |
| 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 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3524959B2 (en) * | 1994-06-16 | 2004-05-10 | ヒロックテクニカ株式会社 | lift 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
Also Published As
| Publication number | Publication date |
|---|---|
| CN103979455A (en) | 2014-08-13 |
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