CN202124447U - Spiral shearing type jack - Google Patents
Spiral shearing type jack Download PDFInfo
- Publication number
- CN202124447U CN202124447U CN201120199637XU CN201120199637U CN202124447U CN 202124447 U CN202124447 U CN 202124447U CN 201120199637X U CN201120199637X U CN 201120199637XU CN 201120199637 U CN201120199637 U CN 201120199637U CN 202124447 U CN202124447 U CN 202124447U
- Authority
- CN
- China
- Prior art keywords
- base
- seat part
- hinged
- right lower
- brackets
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a spiral shearing type jack, which comprises a base with a straight seat part and a flared seat part; both ends of the straight seat part are connected with a flared seat having expanded aperture; the straight seat part and the flared seat part are formed at a time by stretching the integrated steel plate; the base is hinged with left and right lower brackets; the lower ends of the left and right lower brackets are provided with teeth and engaged to each other by the teeth between the both after being hinged; the upper ends of the left and right lower brackets are rotationally mounted to the lower ends of the left and right upper brackets through pin shafts; the pin shafts are radially provided with a threaded hole respectively; screw rods are inwardly screwed to pass through the threaded holes; the upper ends of the left and right upper brackets are mounted to the lower end of a top seat in a hinging way; and the base is fixed with a stop block below the hinged point of the left and right lower brackets. The jack adopts a structure formed at a time by stretching the integrated steel plate, the both ends of the base adopt flared parts, and the left and right lower brackets adopt an engaging mode, so that stability in the lifting process is effectively improved and service life is prolonged.
Description
Technical field:
The utility model relates to the jack field, relates in particular to the shearing jack of a kind of spiral.
Background technology:
Jack is that a kind of the top with rigidity lifted part as equipment, through the light little weight-lifting equipment of top bracket or bottom claw jacking weight in stroke.
Can be divided into 3 kinds of rank-and-pinion jack, lifting screw and hydraulic jacks by architectural feature.Jack is the simplest weight-lifting equipment of a kind of lifting highly little (less than 1m).It has two kinds of mechanical type and fluid pressure types.The mechanical type jack has rack-and-pinion and spiral two kinds again, because hoisting capacity is little, the operation effort generally only is used for flight-line maintenance work, and is inapplicable in repairing the bridge process.The fluid pressure type jack structure is compact, and stable working has self-locking action, so use extensively.Its shortcoming is that lifting is highly limited, and lifting velocity is slow.
The shearing jack base mechanical strength of original spiral is not enough, less stable, and is in the process of left and right sides lower bracket jack-up, stable inadequately; Damage easily; Cause service life not long, often change support etc., give in the actual use and bring unnecessary trouble and economic loss.
The utility model content:
To the prior art problem, the purpose of the utility model provides the shearing jack of a kind of spiral, and is simple in structure, and practical effect is good, good mechanical property, supporting & stablizing in the jack-up process.
The technical scheme of the utility model is following:
The shearing jack of spiral comprises base, it is characterized in that: base partly is made up of straight shape seat partial sum enlarging seat; Straight shape seat part two ends connect the enlarging seat part that bore enlarges, and straight shape seat part partly is integral plate stretching one-shot forming with the enlarging seat, is hinged with left and right lower bracket on the base; Left and right lower bracket lower end is provided with tooth; Tooth through each other engagement again after left and right lower bracket lower end is hinged, the lower end that is installed on left and right upper bracket is rotated through bearing pin in lower bracket upper end in the left and right sides, described bearing pin radially be respectively equipped with screw; The suitable screw of crossing of screw mandrel inward turning is arranged, the hinged footstock lower end that is installed on, described left and right upper bracket upper end.
The shearing jack of described spiral is characterized in that: the hinge-point below that described base is positioned at left and right lower bracket is fixed with block.
The utility model has the advantages that:
The utility model is simple in structure, and base adopts the integral plate one-time formed structure that stretches, and flared part is adopted at the two ends of base, and left and right sides lower bracket adopts engagement system simultaneously, has strengthened stability in the jack-up process effectively, has prolonged service life.
Description of drawings:
Fig. 1 is the structural representation of the utility model.
The specific embodiment:
The shearing jack of spiral; Comprise base 1; Base 1 is made up of straight shape seat part 1-1 and enlarging seat part 1-2, and straight shape seat part 1-1 two ends connect the enlarging seat part 1-2 that bore enlarges, and straight shape seat part 1-1 and enlarging seat part 1-2 are integral plate stretching one-shot forming; Be hinged with left and right lower bracket 2,3 on the base 1; Left and right lower bracket 2,3 lower ends are provided with tooth, pass through tooth 4 engagements each other after left and right lower bracket 2,3 lower ends are hinged again, and the lower end that is installed on left and right upper bracket 6,7 is rotated through bearing pin 5 in left and right lower bracket 2,3 upper ends; Bearing pin 5 radially be respectively equipped with screw 8; The suitable screw 8 of crossing of screw mandrel 9 inward turnings is arranged, hinged footstock 10 lower ends (also meshing after left and right upper bracket upper end is hinged) that are installed on, left and right upper bracket 6,7 upper ends through tooth, the hinge-point below that base is positioned at left and right lower bracket 2,3 is fixed with block 11.
Claims (2)
1. the shearing jack of spiral comprises base, it is characterized in that: base partly is made up of straight shape seat partial sum enlarging seat; Straight shape seat part two ends connect the enlarging seat part that bore enlarges, and straight shape seat part partly is integral plate stretching one-shot forming with the enlarging seat, is hinged with left and right lower bracket on the base; Left and right lower bracket lower end is provided with tooth; Tooth through each other engagement again after left and right lower bracket lower end is hinged, the lower end that is installed on left and right upper bracket is rotated through bearing pin in lower bracket upper end in the left and right sides, described bearing pin radially be respectively equipped with screw; The suitable screw of crossing of screw mandrel inward turning is arranged, the hinged footstock lower end that is installed on, described left and right upper bracket upper end.
2. the shearing jack of spiral according to claim 1 is characterized in that: the hinge-point below that described base is positioned at left and right lower bracket is fixed with block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120199637XU CN202124447U (en) | 2011-06-15 | 2011-06-15 | Spiral shearing type jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120199637XU CN202124447U (en) | 2011-06-15 | 2011-06-15 | Spiral shearing type jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202124447U true CN202124447U (en) | 2012-01-25 |
Family
ID=45487518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120199637XU Expired - Fee Related CN202124447U (en) | 2011-06-15 | 2011-06-15 | Spiral shearing type jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202124447U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104876150A (en) * | 2015-06-02 | 2015-09-02 | 安徽青松工具有限公司 | Spiral shear jack |
| CN104891380A (en) * | 2015-06-02 | 2015-09-09 | 安徽青松工具有限公司 | Universalized spiral scissors type jack for three-top parts and tools |
-
2011
- 2011-06-15 CN CN201120199637XU patent/CN202124447U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104876150A (en) * | 2015-06-02 | 2015-09-02 | 安徽青松工具有限公司 | Spiral shear jack |
| CN104891380A (en) * | 2015-06-02 | 2015-09-09 | 安徽青松工具有限公司 | Universalized spiral scissors type jack for three-top parts and tools |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120125 Termination date: 20140615 |
|
| EXPY | Termination of patent right or utility model |