CN101898736B - Hydraulic automatic multi-stage extended supporting tool - Google Patents
Hydraulic automatic multi-stage extended supporting tool Download PDFInfo
- Publication number
- CN101898736B CN101898736B CN2010102321009A CN201010232100A CN101898736B CN 101898736 B CN101898736 B CN 101898736B CN 2010102321009 A CN2010102321009 A CN 2010102321009A CN 201010232100 A CN201010232100 A CN 201010232100A CN 101898736 B CN101898736 B CN 101898736B
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- drive spindle
- extension set
- locating piece
- actuating cylinder
- spring
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Abstract
The invention discloses a hydraulic automatic multi-stage extended supporting tool, which comprises a base, a hydraulic cylinder and a drive rod arranged in the hydraulic cylinder. The tool is characterized in that: the base is provided with a plurality of extension sleeves which are sleeved with one another in turn; the extension sleeves are sleeved outside the hydraulic cylinder; a positioning mechanism is arranged between two adjacent extension sleeves; a check ring is fixed at the upper end of the innermost extension sleeve, while the outermost extension sleeve is fixedly connected with the base; the upper end of the drive rod is axially connected with at least one support rod; the upper end of the support rod is a free end; and when the drive rod is lowered to the lowest point in the hydraulic cylinder, the upper end of the drive rod is lower than that of the hydraulic cylinder. The tool has the advantages that the extension sleeves can be superposed and extended upwards in turn through repeated pushing of the support rod on the drive rod to realize large-distance supporting of the supporting tool; the drive rod can be lowered to the lowest point in the hydraulic cylinder when the tool is not used; and because the upper end of the drive rod is lower than that of the hydraulic cylinder, the outward extending support rod is unfolded towards the center through the limiting effect of the upper end of the hydraulic cylinder, so that the compression reset of the extension sleeves can be realized.
Description
Technical field
The present invention relates to a kind of support instrument, relate in particular to a kind of hydraulic automatic multi-stage extended supporting tool.
Background technology
In daily life and some disaster reliefs (like earthquake, landslide, traffic accident etc.); We often can use the support instrument; So that prop up and obtain an activity space to weight, common in the market support instrument (stretching instrument like tops such as jacks) is general to cause use inconvenience owing to lifting altitude is low, and other common volume of professional support instrument and weight are bigger; Price is higher, carries also inconvenient.
Summary of the invention
Technical matters to be solved by this invention provides a kind of support function that realizes big distance, and cost hydraulic automatic multi-stage extended supporting tool low, easy to carry.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of hydraulic automatic multi-stage extended supporting tool; Comprise base, hydraulic actuating cylinder and be arranged on the drive spindle in the described hydraulic actuating cylinder, described hydraulic actuating cylinder is vertically fixed on the described base, and described hydraulic actuating cylinder is provided with fuel-return valve; Described base is provided with a plurality of extension sets of mutual socket successively; Described extension set is set in outside the described hydraulic actuating cylinder, is provided with detent mechanism between two adjacent extension sets, and the upper end of innermost extension set is set with the gear ring; Outmost extension set is captiveed joint with described base; The upper end of described drive spindle is connected with at least one strut bar, and the upper end of described strut bar is a free end, when described drive spindle drops to nadir in described hydraulic actuating cylinder; The upper end of described drive spindle is lower than the upper end of described hydraulic actuating cylinder; Or the upper end of described hydraulic actuating cylinder fixedly installs restraining position ring block, and when described drive spindle dropped to nadir in described hydraulic actuating cylinder, the upper end of described drive spindle was lower than the upper end of described spacing ring.
Described detent mechanism comprises the mounting hole at least one bottom outer circumference surface that is arranged on interior level extension set; Be provided with spring and locating piece in the described mounting hole; Be wholely set positioning convex ring on the described locating piece; The upper end of described outer level extension set is provided with and the corresponding through hole of described locating piece; The inwall of described outer level extension set is provided with the axial guide groove that is used for described locating piece guiding, during stretching in locating piece in the level extension set match with through hole on the outer grade extension set.
Described detent mechanism comprises the mounting hole at least one bottom outer circumference surface that is arranged on interior level extension set; Be provided with spring and locating piece in the described mounting hole; The upper end of described outer level extension set is provided with and the corresponding positioning groove of described locating piece; The open upper end of described positioning groove; The height of described positioning groove is less than the height of described locating piece, and the inwall of described outer level extension set is provided with the axial guide groove that is used for described locating piece guiding, during stretching in locating piece in the level extension set match with positioning groove on the outer grade extension set.
The upper end of described drive spindle is set with adapter shaft; Described strut bar is coupling on described adapter shaft; Be arranged with spring on the described adapter shaft, an end of described spring is crimped on the described strut bar, and the other end of described spring is crimped on the described drive spindle.
Described strut bar is two; The upper end of described drive spindle is set with adapter shaft; Two described strut bars are oppositely arranged and all are coupling on described adapter shaft; Be arranged with spring on the described adapter shaft, an end of described spring is crimped on wherein on the strut bar, and the other end of described spring is crimped on another root strut bar.
Described strut bar is at least two, and all strut bars are provided with an independently gravity block around the center shaft rectangular distribution of described drive spindle directly over the described drive spindle, and described gravity block is shelved on all strut bars.
Described gravity block is spheroid, hemisphere etc.
Thick going up approaches under the width of described strut bar.
Be arranged with retracing spring on the described drive spindle, an end apical grafting of described retracing spring is on the inner end surface of described hydraulic actuating cylinder, and the other end apical grafting of described retracing spring is on the bottom of described drive spindle.
Compared with prior art, advantage of the present invention is because base is provided with a plurality of extension sets of mutual socket successively, through the repeatedly promotion of drive spindle upper support bar; Can with extension set successively upwards stack extend, realize the big of support instrument, and in time spent not apart from support or expansion; Drive spindle is dropped to nadir in hydraulic actuating cylinder, because the upper end of drive spindle is lower than the upper end of hydraulic actuating cylinder or spacing ring, through the position-limiting action of hydraulic actuating cylinder upper end or spacing ring upper end; Can the strut bar that outwards struts be drawn in to the center, thereby the compression that realizes extension set resets, and makes things convenient for carrying of support instrument; Weight is lighter, and cost is lower; And be arranged with retracing spring on the drive spindle, during fuel-return valve on opening hydraulic actuating cylinder, the elastic force effect through retracing spring can make drive spindle reset fast; Entire tool is small and exquisite flexibly, and its field of application is wider, can be applicable to rescue sites such as earthquake, traffic accident, also can be used on occasions such as Vehicle tyre mounting or dismounting.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention one;
Fig. 2 is the structural representation of the detent mechanism of the embodiment of the invention one;
Fig. 3 is the enlarged diagram at A place among Fig. 2;
Fig. 4 is the strut bar of the embodiment of the invention one and the annexation scheme drawing of drive spindle;
Fig. 5 is the birds-eye view of Fig. 4;
Fig. 6 is the structural representation of the detent mechanism of the embodiment of the invention two;
Fig. 7 is the structural representation of the embodiment of the invention three.
The specific embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
Embodiment one: as shown in the figure, a kind of hydraulic automatic multi-stage extended supporting tool comprises base 1, hydraulic actuating cylinder 2 and is arranged on the drive spindle 3 in the hydraulic actuating cylinder 2; Hydraulic actuating cylinder 2 is vertically fixed on the base 1, and hydraulic actuating cylinder 2 is provided with the fuel-return valve (not shown), and base 1 is provided with a plurality of extension sets 4 of mutual socket successively; Extension set 4 is set in outside the hydraulic actuating cylinder 2, and the upper end of innermost extension set 4 is bolted with gear ring 41, and outmost extension set 4 is captiveed joint with base 1; Be provided with detent mechanism between two adjacent extension sets 4, detent mechanism comprise four evenly be arranged in mounting hole 42 on the bottom outer circumference surface of level extension set 4-1, be provided with spring 43 and locating piece 44 in the mounting hole 42; Be wholely set positioning convex ring 45 on the locating piece 44, the upper end of outer level extension set 4-2 is provided with and locating piece 44 corresponding through holes 46, and the inwall of outer level extension set 4-2 is provided with the axial guide groove 47 that is used for locating piece 44 guiding; Locating piece 44 in during stretching in the level extension set 4-1 matches with through hole 46 on the outer grade of extension set 4-2; The upper end of drive spindle 3 is set with adapter shaft 31, is connected with two strut bars 5 that the position is relative on the adapter shaft 31, and the upper end of strut bar 5 is a free end; Be arranged with spring 6 on the adapter shaft 31; One end of spring 6 is crimped on wherein on the strut bar 5, and the other end of spring 6 is crimped on another root strut bar 5, when drive spindle 3 drops to nadir in hydraulic actuating cylinder 2; The upper end of drive spindle 3 is lower than the upper end of hydraulic actuating cylinder 2; Be arranged with retracing spring 7 on the drive spindle 3, an end apical grafting of retracing spring 7 is on the inner end surface of hydraulic actuating cylinder 2, and the other end apical grafting of retracing spring 7 is on the bottom of drive spindle 3.
Embodiment two: as shown in the figure; Other structure is with embodiment one; Difference be detent mechanism comprise four be uniformly set in mounting hole 42 on the bottom outer circumference surface of level extension set 4-1, be provided with spring 43 and locating piece 44 in the mounting hole 42, the upper end of outer level extension set 4-2 is provided with and locating piece 44 corresponding positioning grooves 48; The open upper end of positioning groove 48; The height H 1 of positioning groove 48 is less than the height H 2 of locating piece 44, and the inwall of outer level extension set 4-2 is provided with the guide groove 47 that is used for locating piece 44 guiding, during stretching in locating piece 44 in the level extension set 4-1 match with positioning groove 48 on the outer grade of extension set 4-2.
Embodiment three: as shown in the figure; Other structure is with embodiment one; Difference is that the upper end of drive spindle 3 is connected with two strut bars 5 that the position is relative through adapter shaft 31; Thick going up approaches under the width of strut bar 5, is provided with an independently gravity ball 8 directly over the drive spindle 3, and gravity ball 8 is shelved on all strut bars 5.
Except that structure shown in the foregoing description, being coupling can be one, three, four etc. in the quantity of the strut bar 5 of drive spindle 3 upper ends, and an end of spring 6 is crimped on the strut bar 5, and the other end of spring 6 can be crimped on the drive spindle 3; In addition, can also remove spring 6, utilize strut bar 5 weight own to make it outward-dipping; Also can fixedly install spacing ring in the upper end of hydraulic actuating cylinder 2, when drive spindle 3 dropped to nadir in hydraulic actuating cylinder 2, the upper end of drive spindle 3 was lower than the upper end of spacing ring; Also can on interior level extension set 4-1, an orienting lug be set in addition; On the inwall of level extension set 4-2 the axially directed groove that cooperates with orienting lug is set in addition outside; Save the guide groove 47 that the locating piece 44 on the original and interior level extension set 4-1 matches simultaneously; In addition, the structure of fuel-return valve is identical with the oil returning valve structure of existing hydraulic efficiency gear on the hydraulic actuating cylinder 2, like the fuel-return valve on the jack.
The working process of support instrument of the present invention is: drive spindle 3 is risen strut bar 5 is withstood on the gear ring 41 of the extension set 4 in the inside; Driving through drive spindle 3 drive innermost extension set 4 upwards stretch until with adjacent extension set 4 through locating piece 44 location; Then through fuel-return valve oil return landing drive spindle 3, when strut bar 5 descend break away from innermost extension set 4 after, the effect strut bar 5 through spring 6 or gravity ball 8 outwards rotates; Lean against on second extension set 4; Drive drive spindle 3 then and rise and make strut bar 5 withstand on the lower surface of the extension set 4 in the inside (being equivalent to the gear ring 41 in the uphill process for the first time), drives second extension set 4 upwards stretch until with adjacent extension set 4 through locating piece 44 location, then through the fuel-return valve oil return drive spindle 3 that lands ... The repetitive cycling operation; Till this instrument supports to desired height with weight, after using end, as long as inwardly pin locating piece 44; Make locating piece 44 break away from through hole 46 or positioning groove 48, just can extension set 4 be resetted.
Claims (8)
1. a hydraulic automatic multi-stage extended supporting tool comprises base, hydraulic actuating cylinder and is arranged on the drive spindle in the described hydraulic actuating cylinder, and described hydraulic actuating cylinder is vertically fixed on the described base; Described hydraulic actuating cylinder is provided with fuel-return valve; It is characterized in that described base is provided with a plurality of extension sets of mutual socket successively, described extension set is set in outside the described hydraulic actuating cylinder, is provided with detent mechanism between two adjacent extension sets; The upper end of innermost extension set is set with the gear ring; Outmost extension set is captiveed joint with described base, and the upper end of described drive spindle is connected with at least one strut bar, and the upper end of described strut bar is a free end; When described drive spindle drops to nadir in described hydraulic actuating cylinder; The upper end of described drive spindle is lower than the upper end of described hydraulic actuating cylinder, or the upper end of described hydraulic actuating cylinder fixedly installs restraining position ring block, when described drive spindle drops to nadir in described hydraulic actuating cylinder; The upper end of described drive spindle is lower than the upper end of described spacing ring; Be arranged with retracing spring on the described drive spindle, an end apical grafting of described retracing spring is on the inner end surface of described hydraulic actuating cylinder, and the other end apical grafting of described retracing spring is on the bottom of described drive spindle.
2. a kind of hydraulic automatic multi-stage extended supporting tool as claimed in claim 1; It is characterized in that described detent mechanism comprises the mounting hole at least one bottom outer circumference surface that is arranged on interior level extension set; Be provided with spring and locating piece in the described mounting hole; Be wholely set positioning convex ring on the described locating piece; The upper end of outer level extension set is provided with and the corresponding through hole of described locating piece, and the inwall of outer level extension set is provided with the axial guide groove that is used for described locating piece guiding, during stretching in locating piece in the level extension set match with through hole on the outer grade extension set.
3. a kind of hydraulic automatic multi-stage extended supporting tool as claimed in claim 1; It is characterized in that described detent mechanism comprises the mounting hole at least one bottom outer circumference surface that is arranged on interior level extension set; Be provided with spring and locating piece in the described mounting hole; The upper end of outer level extension set is provided with and the corresponding positioning groove of described locating piece, the open upper end of described positioning groove, and the height of described positioning groove is less than the height of described locating piece; The inwall of outer level extension set is provided with the axial guide groove that is used for described locating piece guiding, during stretching in locating piece in the level extension set match with positioning groove on the outer grade extension set.
4. a kind of hydraulic automatic multi-stage extended supporting tool as claimed in claim 1; The upper end that it is characterized in that described drive spindle is set with adapter shaft; Described strut bar is coupling on described adapter shaft; Be arranged with spring on the described adapter shaft, an end of described spring is crimped on the described strut bar, and the other end of described spring is crimped on the described drive spindle.
5. a kind of hydraulic automatic multi-stage extended supporting tool as claimed in claim 1; It is characterized in that described strut bar is two; The upper end of described drive spindle is set with adapter shaft, and two described strut bars are oppositely arranged and all are coupling on described adapter shaft, are arranged with spring on the described adapter shaft; One end of described spring is crimped on wherein on the strut bar, and the other end of described spring is crimped on another root strut bar.
6. a kind of hydraulic automatic multi-stage extended supporting tool as claimed in claim 1; It is characterized in that described strut bar is at least two; All strut bars are around the center shaft rectangular distribution of described drive spindle; Be provided with an independently gravity block directly over the described drive spindle, described gravity block is shelved on all strut bars.
7. a kind of hydraulic automatic multi-stage extended supporting tool as claimed in claim 6 is characterized in that described gravity block is a spheroid.
8. a kind of hydraulic automatic multi-stage extended supporting tool as claimed in claim 1, it is characterized in that under the width of described strut bar thick thin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102321009A CN101898736B (en) | 2010-07-16 | 2010-07-16 | Hydraulic automatic multi-stage extended supporting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102321009A CN101898736B (en) | 2010-07-16 | 2010-07-16 | Hydraulic automatic multi-stage extended supporting tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101898736A CN101898736A (en) | 2010-12-01 |
| CN101898736B true CN101898736B (en) | 2012-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102321009A Expired - Fee Related CN101898736B (en) | 2010-07-16 | 2010-07-16 | Hydraulic automatic multi-stage extended supporting tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101898736B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112938813B (en) * | 2021-03-09 | 2022-05-03 | 上海枭云实业有限公司 | Electric jacking device for emergency rescue |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2253339Y (en) * | 1996-01-26 | 1997-04-30 | 张金彬 | Multi-joint end-to-end crane |
| EP1652811A1 (en) * | 2004-10-27 | 2006-05-03 | H.S. PENTA S.r.l. | Multistage telescopic cylinder for moving loads |
| CN200985261Y (en) * | 2006-09-19 | 2007-12-05 | 俞小平 | Double-section jack |
| CN201010481Y (en) * | 2007-02-16 | 2008-01-23 | 彭西平 | Hydraulic jack |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007284249A (en) * | 2006-04-19 | 2007-11-01 | Takeshi Shimizu | Composite pressurization two-stage hydraulic jack |
-
2010
- 2010-07-16 CN CN2010102321009A patent/CN101898736B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2253339Y (en) * | 1996-01-26 | 1997-04-30 | 张金彬 | Multi-joint end-to-end crane |
| EP1652811A1 (en) * | 2004-10-27 | 2006-05-03 | H.S. PENTA S.r.l. | Multistage telescopic cylinder for moving loads |
| CN200985261Y (en) * | 2006-09-19 | 2007-12-05 | 俞小平 | Double-section jack |
| CN201010481Y (en) * | 2007-02-16 | 2008-01-23 | 彭西平 | Hydraulic jack |
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| Publication number | Publication date |
|---|---|
| CN101898736A (en) | 2010-12-01 |
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| 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 | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Guofu Inventor after: Wang Feifeng Inventor after: Zhang Jianfeng Inventor after: Yu Wenhao Inventor before: Li Guofu |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LI GUOFU TO: LI GUOFU WANG FEIFENG ZHANG JIANFENG YU WENHAO |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20150716 |
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| EXPY | Termination of patent right or utility model |