CN102619831A - Sliding gap control structure - Google Patents
Sliding gap control structure Download PDFInfo
- Publication number
- CN102619831A CN102619831A CN2012100785864A CN201210078586A CN102619831A CN 102619831 A CN102619831 A CN 102619831A CN 2012100785864 A CN2012100785864 A CN 2012100785864A CN 201210078586 A CN201210078586 A CN 201210078586A CN 102619831 A CN102619831 A CN 102619831A
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- China
- Prior art keywords
- rod member
- cam
- mesopore
- sleeve
- flip sleeve
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Abstract
The invention provides a sliding gap control structure for an expansion link. A first rod piece and a second rod piece slide and stretch relative to each other by virtue of the clearance fit of a sliding sleeve; a cam and a movable friction block are also embedded in the sliding sleeve; and a cam handle is rotated to control the sliding gap of the second rod piece in the sliding sleeve, so as to realize a function of quickly clutching and locking the expansion link.
Description
Technical field
The application relates to MACHINERY JOINT, particularly relates to a kind of glade plane space control structure of flexible rod.
Background technique
The flexible rod that is slidingly connected is a kind of common structure, is used for supporting frame, the connecting rod of telescopic folding more, and the glade plane space of flexible rod is the realization that has guaranteed Telescopic, the glade plane space of control flexible rod, and promptly the may command flexible rod is locked or slide relative relatively.In the existing technology; Gap control for the flexible rod of slide relative is also referred to as the locking to flexible rod; The mode of locking mainly contains thread type clamping, taper thread locking and pressing plate---modes such as pull-rod type locking; Existing technology exists locking operation loaded down with trivial details mostly, and locking state is not directly perceived, is difficult to satisfy than the large bearing capacity degree and critical the asking of Clutch lock of flexible rod easily and fast.
Summary of the invention
The object of the present invention is to provide a kind of glade plane space control structure of flexible rod, can realize quick clutch locking function flexible rod.
A kind of glade plane space control structure contains first rod member and second rod member of slide relative, it is characterized in that first rod member and second rod member realize sliding extension through a flip sleeve Spielpassung; The termination of described second rod member is fixed on the body of flip sleeve; Flip sleeve is provided with the mesopore that first rod member slides and passes, and in the slip body, also is inlaid with a cam, and the central shaft of this cam is parallel with first rod member; Be fixed with handle with sleeve on the central shaft of cam; It is external that handle with sleeve is located at flip sleeve, through the hole wall of mesopore, between the cam and first rod member, is inlaid with movable brake pad.
During use, first rod member slides through the mesopore of flip sleeve, the relative Telescopic between the realization and second rod member; When the relative position between fixing first rod member of needs and second rod member; The handle of rotating cam makes cam get the surface that high some promotion activity brake pad is pressed on first rod member, and the glade plane space of first rod member is reduced; Increase its skin friction, realize the function of locking fast; When needs remove first rod member and and flip sleeve between locking the time, the backward rotation cam handle makes the height point of cam leave movable brake pad again, has removed the friction of movable brake pad to first rod member surface, has increased the free gap of first rod member at flip sleeve.
The invention has the advantages that simple and reasonable, use easy to operate, through control to glade plane space, but the clutch of Rapid Realization flexible rod locking.Below in conjunction with embodiment's accompanying drawing the application is described in further detail.
Description of drawings
Fig. 1 is a kind of tripod structure
Fig. 2 is the part signal of scalable strut among Fig. 1
Fig. 3, Fig. 4 are bindiny mechanism's principle signals of flexible rod
Numbering explanation among the figure: 1 support platform, 2 rack legs, 3 struts, 4 first rod members, 5 second rod members, 6 flip sleeves, 7 handle with sleeves, 8 mesopores, 9 movable brake pads, 10 cams, 11 central shafts
Embodiment
Referring to accompanying drawing, accompanying drawing is that the telescoping shoring column leg with tripod is embodiment, further specifies the application's invention thought.
The tripod of Fig. 1 is that a kind of instrument that is used for field work supports portable stand.The support platform 1 of this tripod is a discoidal platform, below platform, is hinged with three rack legs 2, and be provided with strut 3 at the middle part of tripod hinged with rack leg.Rack leg in the enforcement is as shown in Figure 2; Be made up of first rod member 4, second rod member 5 and flip sleeve 6, the upper end of second rod member 5 is fixed on the middle part, lower end of flip sleeve 6, and the flip sleeve 6 and second rod member 5 are become one structure; First rod member 4 is two tubular rods arranged side by side; The both sides of flip sleeve 6 are respectively equipped with a mesopore 8 first rod member 4 that is used to peg graft, and are slidably flexible with respect to first rod member 4 through mesopore 8, the second rod members 5.
In order to control the glade plane space of second rod member 5 in the mesopore 8 of flip sleeve 6; Also be inlaid with the parallel oval cam 10 of a central shaft 11 and upper lever 4 at the inner chamber of flip sleeve 6; It is external that the handle with sleeve 7 of this cam 10 is located at the basis of flip sleeve 6; Through the hole wall of both sides mesopore, be inlaid with a movable brake pad 9 respectively in the both sides of oval cam 10.
When needs are locked the relative position of first rod member 4 and second rod member 5; Pull and be positioned at the outer cam rotation handle 7 of flip sleeve; Make the outside extruding activity brake pad 9 of the high point in two ends of oval cam; The arcuate surface and second rod member of movable brake pad 9 fit tightly, and eliminate the gap of second rod member and flip sleeve mesopore, realize locking function.
When between needs first rod member 4 and second rod member 5 during slides in telescopic; Oppositely pull cam rotation handle 7; Make the high point in two ends of oval cam leave movable brake pad 9; Unclamp the extruding of 9 pairs second rod members of movable brake pad, restore the gap of second rod member and flip sleeve mesopore, realize the slides in telescopic function between first rod member 4 and second rod member 5.
What deserves to be mentioned is that when described first rod member was parallel multiple tubing element, said flip sleeve had the mesopore of respective amount, described cam structure has the protruding top with the mesopore multiple, is inlaid with corresponding movable brake pad on each gap hole wall.
Claims (2)
1. a glade plane space control structure contains slide relative flexible first rod member and second rod member, it is characterized in that first rod member and second rod member are through a flip sleeve Spielpassung realization sliding extension; The termination of described second rod member is fixed on the body of flip sleeve; Flip sleeve is provided with the mesopore that first rod member slides and passes, and in the slip body, also is inlaid with a cam, and the central shaft of this cam is parallel with first rod member; Be fixed with handle with sleeve on the central shaft of cam; It is external that handle with sleeve is located at flip sleeve, through the hole wall of mesopore, between the cam and first rod member, is inlaid with movable brake pad.
2. glade plane space control structure as claimed in claim 1; It is characterized in that described first rod member is two parallel tubular rods arranged side by side; Said flip sleeve both sides are respectively equipped with a mesopore; Described cam is an oval cam, through the hole wall of mesopore, is inlaid with a movable brake pad respectively in the both sides of oval cam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100785864A CN102619831A (en) | 2012-03-22 | 2012-03-22 | Sliding gap control structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100785864A CN102619831A (en) | 2012-03-22 | 2012-03-22 | Sliding gap control structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102619831A true CN102619831A (en) | 2012-08-01 |
Family
ID=46559964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100785864A Pending CN102619831A (en) | 2012-03-22 | 2012-03-22 | Sliding gap control structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102619831A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106926889A (en) * | 2017-03-15 | 2017-07-07 | 上海童歌母婴用品有限公司 | Fold the small baby carriage frame of the volume of timber |
| IT201800007528A1 (en) * | 2018-07-26 | 2020-01-26 | Vitec Imaging Solutions Spa | Locking device for rods and tripod comprising such a locking device |
| CN113478078A (en) * | 2021-07-06 | 2021-10-08 | 西安远飞航空技术发展有限公司 | Device and method for laser welding clamping and back protection of three-layer structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3805260A1 (en) * | 1988-02-19 | 1989-08-31 | Kuerbi & Niggeloh | Stand |
| US5320316A (en) * | 1991-09-14 | 1994-06-14 | Ronford-Baker Engineering Co., Ltd. | Portable stands or supports |
| CN101886731A (en) * | 2009-05-11 | 2010-11-17 | 照相机动力学有限公司 | Support, particularly camera mount |
-
2012
- 2012-03-22 CN CN2012100785864A patent/CN102619831A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3805260A1 (en) * | 1988-02-19 | 1989-08-31 | Kuerbi & Niggeloh | Stand |
| US5320316A (en) * | 1991-09-14 | 1994-06-14 | Ronford-Baker Engineering Co., Ltd. | Portable stands or supports |
| CN101886731A (en) * | 2009-05-11 | 2010-11-17 | 照相机动力学有限公司 | Support, particularly camera mount |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106926889A (en) * | 2017-03-15 | 2017-07-07 | 上海童歌母婴用品有限公司 | Fold the small baby carriage frame of the volume of timber |
| CN106926889B (en) * | 2017-03-15 | 2024-01-09 | 闵远超 | Baby carriage frame with small folding volume |
| IT201800007528A1 (en) * | 2018-07-26 | 2020-01-26 | Vitec Imaging Solutions Spa | Locking device for rods and tripod comprising such a locking device |
| WO2020021410A1 (en) * | 2018-07-26 | 2020-01-30 | Vitec Imaging Solutions S.P.A. | Blocking device for shafts and a tripod comprising such a blocking device |
| US11421818B2 (en) | 2018-07-26 | 2022-08-23 | Vitec Imaging Solutions S.P.A. | Blocking device for shafts and a tripod comprising said blocking device |
| CN113478078A (en) * | 2021-07-06 | 2021-10-08 | 西安远飞航空技术发展有限公司 | Device and method for laser welding clamping and back protection of three-layer structure |
| CN113478078B (en) * | 2021-07-06 | 2024-04-26 | 西安远飞航空技术发展有限公司 | Device and method for clamping and back protection of three-layer structure laser welding |
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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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120801 |