CN103979452A - Winding type jack with crank slide resistant structure - Google Patents
Winding type jack with crank slide resistant structure Download PDFInfo
- Publication number
- CN103979452A CN103979452A CN201410219678.9A CN201410219678A CN103979452A CN 103979452 A CN103979452 A CN 103979452A CN 201410219678 A CN201410219678 A CN 201410219678A CN 103979452 A CN103979452 A CN 103979452A
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- China
- Prior art keywords
- crank
- swivel arm
- ratchet
- screw rod
- type jack
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Abstract
The invention discloses a winding type jack with a crank slide resistant structure. The winding type jack with the crank slide resistant structure comprises a base; a screw lifting mechanism is arranged on the base; a screw is vertically arranged inside the screw lifting mechanism; a scissor jack is arranged on the screw; a straight rod is arranged on the base; a first fixing block is arranged at the upper end of the straight rod; a through hole is horizontally formed inside the first fixing block; a first crank is arranged inside the through hole in a penetration mode; two take-up reels are arranged on the first crank shaft; wire ropes are fixed on the two take-up reels; one ends of the two wire ropes are fixedly connected with any rotary arms on bilateral sides of the scissor jack; a ratchet wheel is arranged on at least one take-up reel; a pawl is arranged on the first fixing block; the ratchet wheel is matched with the pawl; a groove is formed in the first crank; a top block which is rotary connection with the first crank is arranged inside the groove; the top block is connected with the groove through a spring. The winding type jack with the crank slide resistant structure can rapidly ascend and descend and the top block which is arranged inside the groove can prevent the first crank from horizontal sliding.
Description
Technical field
The present invention relates to a kind of jack, specifically a kind of takeup type 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 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, the 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: the takeup type jack with the anti-slip structure of crank, 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, 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.The jack of this structure in use, in the time that not touching weight, jack upper end rotates by rotating the first crank, make the second contiguous block fast rise that the second contiguous block is contacted with weight, after touching weight, the second contiguous block rotates jointly by weight jack-up by screw rod hoister structure and the first crank, because cooperation first crank of click 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, there is following beneficial effect: this takeup type jack of the present invention can fast speed rise and fall in the time not touching weight, and rising jack-up weight at a slow speed after touching weight, and be provided with the jacking block that prevents that the first crank from laterally sliding, improved the safety in jack use procedure.
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 embodiment of the present invention other direction.
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, there is the takeup type jack of the anti-slip structure of crank, 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.Described ratchet 14 1 sides are provided with and lean piece 15, because ratchet 13 is very large to the reversal interlocking relay of ratchet 14, therefore arrange and lean piece 15 ratchet 14 is withstood.In described through hole, be provided with bearing.
The jack of this structure in use, in the time that not touching weight, jack upper end rotates by rotating the first crank 10, the second contiguous block 8 fast rise are contacted with weight, rotation and the first crank 10 by the second crank 115 after the second contiguous block 8 touches weight 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, in the time that 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, in the time that the first crank 10 need to rotate backward, can make ratchet 13 and ratchet 14 depart from by again the first crank 10 being slided after coping block 17.
Claims (4)
1. there is the takeup type jack of the anti-slip structure of crank, 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), 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).
2. the takeup type jack with the anti-slip structure of crank 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. the 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).
4. the 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 |
|---|---|---|---|
| CN201410219678.9A CN103979452B (en) | 2014-05-23 | 2014-05-23 | There is the takeup type jack of the anti-slip structure of crank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410219678.9A CN103979452B (en) | 2014-05-23 | 2014-05-23 | There is the takeup type jack of the anti-slip structure of crank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103979452A true CN103979452A (en) | 2014-08-13 |
| CN103979452B CN103979452B (en) | 2016-05-11 |
Family
ID=51271666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410219678.9A Active CN103979452B (en) | 2014-05-23 | 2014-05-23 | There is the takeup type jack of the anti-slip structure of crank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103979452B (en) |
Citations (4)
| 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 |
| 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 |
| CN203865948U (en) * | 2014-05-23 | 2014-10-08 | 宁波天益齿轴齿轮有限公司 | Winding type jack provided with crank anti-slip structure |
-
2014
- 2014-05-23 CN CN201410219678.9A patent/CN103979452B/en active Active
Patent Citations (4)
| 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 |
| 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 |
| CN203865948U (en) * | 2014-05-23 | 2014-10-08 | 宁波天益齿轴齿轮有限公司 | Winding type jack provided with crank anti-slip structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103979452B (en) | 2016-05-11 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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