CN101694263B - Hydraulic telescopic rocker arm - Google Patents
Hydraulic telescopic rocker arm Download PDFInfo
- Publication number
- CN101694263B CN101694263B CN2009100756713A CN200910075671A CN101694263B CN 101694263 B CN101694263 B CN 101694263B CN 2009100756713 A CN2009100756713 A CN 2009100756713A CN 200910075671 A CN200910075671 A CN 200910075671A CN 101694263 B CN101694263 B CN 101694263B
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- hydraulic
- arm
- telescopic
- tripod
- telescopic arm
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Abstract
The invention discloses a hydraulic telescopic rocker arm which comprises a tripod, a hydraulic arm body and a track correction mechanism, wherein the hydraulic arm body comprises a hydraulic front telescopic arm, a hydraulic rear telescopic arm and two hydraulic telescopic pull rods, tail parts of hydraulic cylinders of the hydraulic front telescopic arm and the hydraulic rear telescopic arm arefixedly connected into a straight line and are arranged at the top of the tripod as well as can rotate in a vertical plane, head parts of telescopic rods of the two hydraulic telescopic pull rods areconnected with the head part of a pull rod of the hydraulic front telescopic arm, the tail parts of the hydraulic cylinders of the two hydraulic telescopic pull rods and a hydraulic cylinder of the hydraulic front telescopic arm are fixed together; the track correction mechanism comprises an operation disc, a sliding rail and a sliding ball race, two ends of the sliding rail are connected with the operation disc in a rolling way, the sliding ball race is connected with the sliding rail in a sliding way, the sliding ball race is connected with the rear telescopic arm, and the whole track correction mechanism is fixed at the rear side of the tripod. The invention has simple structure and skilled design, can not only complete the linear track movement, but also always keep the function of the traditional rocker arm.
Description
Technical field
The present invention relates to the video camera rocking arm, particularly a kind of hydraulic telescopic rocker arm.
Background technology
In the epoch that TV tech is maked rapid progress, the rocking arm camera technique has been brought into play very important effect in programs such as variety, physical culture, talk class.It has greatly enriched the language of lens of TV programme, has increased the innervation and the diversification of camera lens picture, and, because the peculiar long-armed advantage of rocking arm video camera often can photograph the camera lens that other video cameras can not capture.
At present, rocking arm has become films and television programs and has taken indispensable basic equipment, but China enterprise understanding with contact the rocking arm camera technique and compare laterly, the technology application facet is also relatively backward.A lot of motion shooting skills are subjected to the influence of its circular arc motion track, all are difficult to must could realize by corollary equipments such as moving track, lift trucks in other words from truly being achieved.
Chinese patent CN200520012615.2, the video camera rocker stand modified form device that relates to field of cameras, inserting size limitations, balance adjustment at known video camera rocker stand circumference rotary balance, video camera owes convenient and designs, be made up of rocker stand, tripod two parts, rocker stand is provided with the circumference rotatable parts, video camera is inserted parts, balance adjustment parts.This invention makes the complete machine simple operation, but shooting effect is undesirable, and product quality is not high.
Summary of the invention
The purpose of this invention is to provide a kind of hydraulic telescopic rocker arm, to solve that camera lens that existing video camera rocking arm exists can't extend vertically and the arm body problem that camera lens is drawn circular arc when moving.
The present invention adopts following technical scheme to realize: a kind of hydraulic telescopic rocker arm comprises tripod, fluid pressure type arm body and track calibration mechanism, wherein fluid pressure type arm body is by hydraulic pressure front stretching arm, telescopic arm and two hydraulically extensible pull bars are formed behind the hydraulic pressure, wherein before the hydraulic pressure, the hydraulic cylinder afterbody of back telescopic arm is fixedly connected in alignment, be installed on the tripod top, and can in vertical plane, rotate, the expansion link head of two hydraulically extensible pull bars is connected with the rod head of hydraulic pressure front stretching arm, and the hydraulic cylinder of the hydraulic cylinder afterbody of two hydraulically extensible pull bars and hydraulic pressure front stretching arm is fixed; Described track calibration mechanism comprises operation disk, slide rail, slip pearl bowl, rolls with the operation disk and be connected in the slide rail two ends, and slip pearl bowl and slide rail are slidingly connected, and slip pearl bowl is connected with back telescopic arm, and whole track calibration mechanism is fixed on the tripod rear side.
Described hydraulic means and track calibration mechanism are the structure that those skilled in the art realize easily, and multiple malformation can be arranged.The rocking arm size also can design by plurality of specifications.
The present invention is simple in structure, designs ingeniously, can finish straight path and move, and still keeps the function of existing rocking arm simultaneously.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of track calibration of the present invention mechanism.
Among the figure: the 1-tripod, 2-hydraulic pressure front stretching arm, telescopic arm behind the 3-hydraulic pressure, 4-hydraulically extensible pull bar, 5-hydraulically extensible pull bar, 6-operates disk, 7-slide rail, 8-slip pearl bowl.
Embodiment
As shown in Figure 1 and Figure 2, a kind of hydraulic telescopic rocker arm in the present embodiment comprises tripod 1, fluid pressure type arm body and track calibration mechanism; Wherein fluid pressure type arm body by hydraulic pressure front stretching arm 2, hydraulic pressure after telescopic arm 3, hydraulically extensible pull bar 4 and hydraulically extensible pull bar 5 form, wherein the hydraulic cylinder afterbody of the forward and backward telescopic arm 2,3 of hydraulic pressure is fixedly connected in alignment, be installed on the tripod top, and can in vertical plane, rotate, the expansion link head of two hydraulically extensible pull bars 4,5 is connected with the rod head of hydraulic pressure front stretching arm 2, and the hydraulic cylinder of the hydraulic cylinder afterbody of two hydraulically extensible pull bars 4,5 and hydraulic pressure front stretching arm 2 is fixed; Track calibration mechanism comprises operation disk 6, slide rail 7 and slip pearl bowl 8, wherein, roll with operation disk 6 and be connected in slide rail 7 two ends, and slip pearl bowl 8 is slidingly connected with slide rail 7, slip pearl bowl 8 is connected with back telescopic arm 3, and whole track calibration mechanism is fixed on tripod 1 rear side.
During use, video camera is fixed in front stretching arm 2, when after the manual operation during telescopic arm 3, back telescopic arm 3 is connected with slip pearl bowl 8, is subjected to the effect of track calibration mechanism, and the telescopic section of feasible back telescopic arm 3 stretches out or withdraws, under the effect of hydraulic pressure, the telescopic section of front stretching arm 2 and two telescopic levers 4,5 stretches out simultaneously or withdraws, and in this process, the movement locus that is positioned at the video camera of front stretching arm 2 is straight line all the time.If fastening tripod left rotation and right rotation lock-button removes track calibration mechanism, this rocking arm also can be finished and the extending axially of tripod vertical direction.Like this, when video camera relies on the motion of rocking arm large span to take, just can finish easily real push away, draw, shake, move, skill such as lifting.Thereby the function of rocking arm is strengthened greatly, and the picture effect of shooting more meets photographing request.
Claims (1)
1. hydraulic telescopic rocker arm, comprise tripod (1), fluid pressure type arm body and track calibration mechanism, it is characterized in that described fluid pressure type arm body is by hydraulic pressure front stretching arm (2), telescopic arm behind the hydraulic pressure (3), the first hydraulically extensible pull bar (4) and the second hydraulically extensible pull bar (5) are formed, wherein before the hydraulic pressure, back telescopic arm (2,3) hydraulic cylinder afterbody is fixedly connected in alignment, be installed on tripod (1) top, and can in vertical plane, rotate, two hydraulically extensible pull bars (4,5) expansion link head is connected with the rod head of hydraulic pressure front stretching arm (2), two hydraulically extensible pull bars (4, the hydraulic cylinder of hydraulic cylinder afterbody 5) and hydraulic pressure front stretching arm (2) is fixed; Described track calibration mechanism comprises operation disk (6), slide rail (7), slip pearl bowl (8), roll with operation disk (6) and be connected in slide rail (7) two ends, slip pearl bowl (8) is slidingly connected with slide rail (7), slip pearl bowl (8) is connected with back telescopic arm (3), and whole track calibration mechanism is fixed on tripod (1) rear side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100756713A CN101694263B (en) | 2009-09-30 | 2009-09-30 | Hydraulic telescopic rocker arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100756713A CN101694263B (en) | 2009-09-30 | 2009-09-30 | Hydraulic telescopic rocker arm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101694263A CN101694263A (en) | 2010-04-14 |
| CN101694263B true CN101694263B (en) | 2011-06-01 |
Family
ID=42093250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100756713A Expired - Fee Related CN101694263B (en) | 2009-09-30 | 2009-09-30 | Hydraulic telescopic rocker arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101694263B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101980075B (en) * | 2010-08-27 | 2012-07-25 | 刘洪� | Electric power manual telescopic rocker arm |
| CN101937159B (en) * | 2010-08-27 | 2012-07-25 | 刘洪� | Power-assisted manual telescopic rocker arm |
| US9366376B2 (en) * | 2012-07-12 | 2016-06-14 | Zeke L. Kamm | Telescoping portable camera jib |
-
2009
- 2009-09-30 CN CN2009100756713A patent/CN101694263B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101694263A (en) | 2010-04-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110601 Termination date: 20110930 |