CN102070105A - Labor-saving spiral shearing jack - Google Patents
Labor-saving spiral shearing jack Download PDFInfo
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- CN102070105A CN102070105A CN201110009426XA CN201110009426A CN102070105A CN 102070105 A CN102070105 A CN 102070105A CN 201110009426X A CN201110009426X A CN 201110009426XA CN 201110009426 A CN201110009426 A CN 201110009426A CN 102070105 A CN102070105 A CN 102070105A
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- bar
- shearing
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Abstract
The invention discloses a labor-saving spiral shearing jack, belonging to the technical field of the spiral jack, which aims to overcome the shortage that current spiral shearing jacks lift strenuously during an initial stage. The upper parts of the right and left sections of the screw rod are provided with screws in opposite spiral directions. The spiral shearing jack is provided with a pair of left-assistant shear rods and a pair of right-assistant shear rods. The upper rod and the lower rod of each pair of assisted shear rods are mutually coupled to a rotating joint, and the upper end and the lower end of the shear rods are rotatablely connected to an upper moving ring and a lower moving ring respectively; an upper loop bar and a lower loop bar are arranged on the bottom of a top supporting plate and the top of a bottom supporting plate respectively; the upper moving ring and the lower moving ring are set on the exterior of the upper loop bar and the lower loop bar respectively; and nuts are installed in the rotating joint of the left and right assistant shear rods in an opposite spiral direction, and the nut in the left side is the same as the nut within the rotating joint in the left shear rod. The labor-saving spiral shearing jack provided by the invention is suitable for lifting up small-tonnage automobiles.
Description
Technical field
The present invention relates to a kind of lifting screw technology, particularly relate to a kind of labour-saving spiral scissors-type jack.
Background technology
Though spiral scissors-type jack hoisting capacity is less since it to have structure light and handy, cheap, use characteristics such as simple and easy, easy to carry, be widely used at present, be particularly suitable for the top lifting of little tonnage automobile.On dollies such as car, microvan, become with one of subsidiary instrument of car.But in actual use, when feeling to begin lifting, special effort, screw rod and left shearing bar rotate the nut of intranodal and make a tight group, and very firmly spanner just can make screw rod rotate.Sometimes owing to overexert jack is toppled, cause the accident of weighing wounded, very dangerous.Simultaneously, because the screw of screw front end is stressed huge, very fragile, cause whole screw rod to be scrapped.From angle of mechanics present spiral scissors-type jack is analyzed, as can be known, the angle between shearing bar and the screw rod is more little, and the component from the weight compression weight that screw rod will overcome is big more.That is to say that when initial lifting, weight of heavy is maximum to the component of screw rod, may be that the several times of weight weight are big.After, along with the increase that plays heights of roofs, the angle between shearing bar and the screw rod becomes greatly gradually, and the suffered component from weight weight of screw rod can diminish gradually, and the power that the user pulls spanner just can become less.
Summary of the invention
The purpose of this invention is to provide a kind of labour-saving spiral scissors-type jack, overcome the deficiency of present spiral scissors-type jack in special effort of the starting stage of lifting.
The present invention is achieved by following technical proposals.
The present invention includes jacking plate, joist, base, a pair of left shearing bar, a pair of right shearing bar and spanner, each last lower beam to the shearing bar interconnects in rotating node, is provided with screw rod, and half section top is provided with the opposite screw of hand of spiral about this screw rod; Be provided with a pair of inside left's shearing bar and a pair of inside right forward's shearing bar, each last lower beam to auxiliary shears power bar interconnects in rotating node, and their upper and lower side is rotationally connected with the live ring and the ring of living down respectively; Be provided with loop bar and following loop bar, be loaded on respectively described jacking plate following and described joist above, describedly go up the outside that live ring and the ring of living down are placed in described upward loop bar and following loop bar respectively; The rotation intranodal of described left and right sides auxiliary shears power bar is equipped with the opposite nut of hand of spiral, and wherein the nut of the rotation intranodal of the nut on the left side and left shearing bar is identical.From structure of the present invention as can be seen, owing to increased described a pair of inside left's shearing bar and a pair of inside right forward's shearing bar, therefore when initial top lifting weight, born the pressure of weight by them fully.Described a pair of left shearing bar and a pair of right shearing bar all are not subjected to the component of weight weight, but the described jacking strip that is raise gradually rising together.Because the angle between auxiliary shears power bar and the described screw rod is more much bigger than the angle between shearing bar and the described screw rod, in the starting stage of top lifting weight, the suffered component from weight weight of screw rod will greatly reduce.Described two pairs of auxiliary shears power bars are drawn close gradually, the screw that half section top is provided with about on the described screw rod is fast when screwing out the nut that the rotation intranodal of being located at described left and right sides auxiliary shears power bar is equipped with, and the screw of described screw rod left end can precession be located at the nut of the rotation intranodal of left shearing bar.At this moment bear up a weight of heavy fully by described left and right sides shearing bar.At this moment, the angle between described left and right sides shearing bar and the described screw rod has become bigger, so the component from weight weight that described screw rod is subjected to has become lighter.
In order not change people in the custom of the right-hand revolution spanner that uses the spiral scissors-type jack to be formed for the top lifting weight that makes progress, the screw that half section top, a screw rod of the present invention left side is provided with is positive rotary screw, and the screw that right half section top is provided with is the derotation screw; The rotation intranodal of the rotation intranodal of described left shearing bar and inside left's shearing bar is equipped with the nut of dextrorotation flight, and the rotation intranodal of inside right forward's shearing bar is equipped with the nut of derotation flight.
Against existing technologies, the invention has the beneficial effects as follows:
When using the present invention to carry out the top lifting weight, more laborsaving, help steady safe in operation; Screw rod is not easy to wear, and is durable in use.
Description of drawings
Fig. 1 and Fig. 2 are structural representation of the present invention, and wherein, Fig. 1 is the situation of top lifting when initial, and Fig. 2 is the situation finally the time for top lifting.Among the figure: 1, jacking plate, 2, joist, 3, base, 4, left shearing bar, 5, right shearing bar, 6, spanner, 7, screw rod, 8, inside left's shearing bar, 9, inside right forward's shearing bar, 10, go up the ring of living, 11, the ring of living down, 12, go up loop bar, 13, loop bar down, 14, rotate node.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing and the specific embodiment.
Situation when Figure 1 shows that this practical initial top lifting weight, pull spanner 6 and make screw rod 7 right-hand revolutions, by the positive and reverse return screw on the screw rod 7 be loaded on inside left's shearing bar 8 and match with the positive and reverse return nut of the rotation intranodal of inside right forward's shearing bar 9, the rotation node of left and right sides auxiliary shears power bar is drawn in, make the ring 10 rising jack-up jacking plates 1 of living carry out the work of top lifting weight simultaneously, because the angle between left and right sides auxiliary shears power bar and the screw rod is greater than the angle between left and right sides shearing bar and the screw rod, so more laborsaving.Meanwhile, rising because of jacking plate 1, left shearing bar 4 and right shearing bar 5 have been taken up, and then the screw precession that makes screw rod 7 left ends is loaded on the nut of the rotation intranodal of left shearing bar 4, because the speed that left and right sides shearing bar 4,5 rises the jacking plate is faster, so substitute left and right sides auxiliary shears power bar 8,9 by them, finally until top lifting work.When left and right sides shearing bar 4,5 entered the top lifting mode of operation, the angle of they and screw rod 7 had become bigger, so also be more laborsaving.Fig. 2 is the structural form of top lifting work finally the time.When putting down weight, descend by left and right sides shearing bar 4,5 supporting jacking plates earlier, screw out the nut of rotation intranodal of left shearing bar 4 when the screw of screw rod 7 left ends after, left and right sides shearing bar 4,5 loses supporting power, at this moment jacking plate 1 just is pressed on the ring 10 of living, and supports the jacking plate by auxiliary shears power bar 8,9 and descends up to end.
Claims (2)
1. labour-saving spiral scissors-type jack, comprise jacking plate, joist, base, a pair of left shearing bar, a pair of right shearing bar and spanner, each last lower beam to the shearing bar interconnects in rotating node, it is characterized in that, be provided with screw rod, half section top is provided with the opposite screw of hand of spiral about this screw rod; Be provided with a pair of inside left's shearing bar and a pair of inside right forward's shearing bar, each last lower beam to auxiliary shears power bar interconnects in rotating node, and their upper and lower side is rotationally connected with the live ring and the ring of living down respectively; Be provided with loop bar and following loop bar, be loaded on respectively described jacking plate following and described joist above, describedly go up the outside that live ring and the ring of living down are placed in described upward loop bar and following loop bar respectively; The rotation intranodal of described left and right sides auxiliary shears power bar is equipped with the opposite nut of hand of spiral, and wherein the nut of the rotation intranodal of the nut on the left side and left shearing bar is identical.
2. a kind of labour-saving according to claim 1 spiral scissors-type jack is characterized in that, the screw that half section top, a described screw rod left side is provided with is positive rotary screw, and the screw that right half section top is provided with is the derotation screw; The rotation intranodal of the rotation intranodal of described left shearing bar and inside left's shearing bar is equipped with the nut of dextrorotation flight, and the rotation intranodal of inside right forward's shearing bar is equipped with the nut of derotation flight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110009426XA CN102070105A (en) | 2011-01-17 | 2011-01-17 | Labor-saving spiral shearing jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110009426XA CN102070105A (en) | 2011-01-17 | 2011-01-17 | Labor-saving spiral shearing jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102070105A true CN102070105A (en) | 2011-05-25 |
Family
ID=44028894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110009426XA Pending CN102070105A (en) | 2011-01-17 | 2011-01-17 | Labor-saving spiral shearing jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102070105A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108408630A (en) * | 2018-06-09 | 2018-08-17 | 黄河科技学院 | Automobile specified assembles jack |
| CN109610548A (en) * | 2018-12-21 | 2019-04-12 | 江苏建筑职业技术学院 | The quick-replaceable auxiliary installation and adjustment bracket of hydraulic crawler excavator end effector |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2057661U (en) * | 1988-11-01 | 1990-05-30 | 裴栋宇 | Light jack |
| US5364071A (en) * | 1993-11-24 | 1994-11-15 | Lu Chung Tai | Scissor jack |
| CN2228900Y (en) * | 1995-08-07 | 1996-06-12 | 王大进 | Improved scissor jack |
| CN2264169Y (en) * | 1996-06-24 | 1997-10-08 | 王大进 | Scissor jack |
| US5950990A (en) * | 1998-04-23 | 1999-09-14 | Castillo; Victor | Attachment for automatically operating a scissors jack |
| CN101058393A (en) * | 2006-04-21 | 2007-10-24 | 郑元 | Electric scissor jack |
| CN201914883U (en) * | 2011-01-17 | 2011-08-03 | 宣伯民 | Labor-saving screw shear type jack |
-
2011
- 2011-01-17 CN CN201110009426XA patent/CN102070105A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2057661U (en) * | 1988-11-01 | 1990-05-30 | 裴栋宇 | Light jack |
| US5364071A (en) * | 1993-11-24 | 1994-11-15 | Lu Chung Tai | Scissor jack |
| CN2228900Y (en) * | 1995-08-07 | 1996-06-12 | 王大进 | Improved scissor jack |
| CN2264169Y (en) * | 1996-06-24 | 1997-10-08 | 王大进 | Scissor jack |
| US5950990A (en) * | 1998-04-23 | 1999-09-14 | Castillo; Victor | Attachment for automatically operating a scissors jack |
| CN101058393A (en) * | 2006-04-21 | 2007-10-24 | 郑元 | Electric scissor jack |
| CN201914883U (en) * | 2011-01-17 | 2011-08-03 | 宣伯民 | Labor-saving screw shear type jack |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108408630A (en) * | 2018-06-09 | 2018-08-17 | 黄河科技学院 | Automobile specified assembles jack |
| CN109610548A (en) * | 2018-12-21 | 2019-04-12 | 江苏建筑职业技术学院 | The quick-replaceable auxiliary installation and adjustment bracket of hydraulic crawler excavator end effector |
| CN109610548B (en) * | 2018-12-21 | 2021-04-06 | 江苏建筑职业技术学院 | Auxiliary mounting and adjusting support for quickly replacing end effector of hydraulic excavator |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110525 |