CN204113832U - A kind of pin pipe telescopic locking structure - Google Patents
A kind of pin pipe telescopic locking structure Download PDFInfo
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- CN204113832U CN204113832U CN201420503801.5U CN201420503801U CN204113832U CN 204113832 U CN204113832 U CN 204113832U CN 201420503801 U CN201420503801 U CN 201420503801U CN 204113832 U CN204113832 U CN 204113832U
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- shaped surface
- arc shaped
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- lock sleeve
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Abstract
The utility model discloses a kind of pin pipe telescopic locking structure, comprise the first body, to be located in the first body and can along the first body the second body and the rotary-tightening device of the first body and the second body can be locked in axial sliding, rotary-tightening device comprises: be arranged on the first lock sleeve inside the first body end and sheathed and be fixed on the second lock sleeve outside the second body end, inside first lock sleeve and the second lock sleeve outside on be respectively arranged with the first arc shaped surface structure, second arc shaped surface structure, a diminishing crack is formed between first arc shaped surface structure and the tube wall of the first body, when the first body, when second body relative sliding is to limit position, rotate the first body or the second body makes the second arc shaped surface structure slip into this crack, first arc shaped surface structure, second arc shaped surface structure clamps mutually, i.e. lockable first body and the second body, realize the function of telescopic adjustment first body and the second body, structure is simple, and reliable lock is stablized.
Description
Technical field
The utility model relates to a kind of pin pipe telescopic locking structure.
Background technique
Some liftings/foot rest is as in tripod, Monopod, alpin-stock etc., usually its pin Guan Jun is set to scalable regulation structure, one second body is normally placed in the structure of the first body by traditional locking mechanism, by arranging a Fastening mechanism between the first body and the second body, first body and the second body can be locked, to reach the object of telescopic adjustment, but such Tensioning structure complexity comparatively, and reliability is low.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of pin pipe telescopic locking structure.
The utility model solves the technological scheme that its technical problem adopts:
A kind of pin pipe telescopic locking structure, comprise the first body, be located in the first body in and can along the first body the second body and the rotary-tightening device of the first body and the second body can be locked in axial sliding, described rotary-tightening device comprises:
First lock sleeve, described first lock sleeve is arranged on inside the first body end, is fixed on the tube wall of the first body outside described first lock sleeve, is provided with the first arc shaped surface structure inside described first lock sleeve;
Second lock sleeve, described second lock sleeve is sheathed and be fixed on outside the second body end, the second arc shaped surface structure is had in the second lock sleeve arranged outside, a diminishing crack is formed between described first arc shaped surface structure and the outer wall of the second body, described second arc shaped surface structure can slip into this crack and be clamped, and namely the first arc shaped surface structure and the second arc shaped surface structure compress mutually with locked first body and the second body.
Described first lock sleeve arranged outside has raised pin, the tube wall of described first body end offers the positioning hole corresponding with raised pin, is provided with projection inside described second lock sleeve, and the tube wall of described second body end offers the slotted eye corresponding with projection.
Also comprise the 3rd gripping sleeve and the 4th gripping sleeve, described 3rd gripping sleeve external diameter is corresponding with the first internal diameter of tube body, described 4th gripping sleeve to be arranged on above the second lock sleeve and to be fixed to the second body end, described 3rd gripping sleeve is arranged between the second lock sleeve and the 4th gripping sleeve, and between the second lock sleeve and the 4th gripping sleeve, form the rotary spacing space can rotated for the 3rd gripping sleeve, the 3rd arc shaped surface structure is provided with inside described 3rd gripping sleeve, and the 3rd arc shaped surface structure and the second tube wall form one reduces key joint gradually, it is one the 4th arc shaped surface structure outside described 4th gripping sleeve, 4th arc shaped surface structure can be wedged to this key joint, and extrude the 3rd gripping sleeve and compress the first inboard wall of tube body, with locked first body and the second body.
Described first inboard wall of tube body projection is provided with the raised line extended along the first tube length direction, described 3rd gripping sleeve offers the draw-in groove corresponding with raised line, described 3rd gripping sleeve is spacing with coordinating of draw-in groove by raised line, and the 3rd gripping sleeve is rotated with the first body.
Described first lock sleeve is provided with the locating slot coordinated with raised line.
Be provided with a protruding block inside described 4th gripping sleeve, described second body is provided with the mounting hole corresponding with this protruding block.
The beneficial effects of the utility model are: a kind of pin pipe telescopic locking structure, comprise the first body, to be located in the first body and can along the first body the second body and the rotary-tightening device of the first body and the second body can be locked in axial sliding, described rotary-tightening device comprises: be arranged on the first lock sleeve inside the first body end and sheathed and be fixed on the second lock sleeve outside the second body end, inside described first lock sleeve and the second lock sleeve outside on be respectively arranged with the first arc shaped surface structure, second arc shaped surface structure, a diminishing crack is formed between described first arc shaped surface structure and the outer wall of the second body, when the first body, when second body relative sliding is to limit position, rotate the first body or the second body makes the second arc shaped surface structure slip into this crack, first arc shaped surface structure, second arc shaped surface structure clamps mutually, i.e. lockable first body and the second body, realize the function of telescopic adjustment first body and the second body, structure is simple, and reliable lock is stablized.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is one of decomposing schematic representation of the present utility model;
Fig. 3 is decomposing schematic representation two of the present utility model;
Fig. 4 is the cooperation schematic diagram of the first lock sleeve of the present utility model and the second lock sleeve;
Fig. 5 is the generalized section of Fig. 4;
Fig. 6 is the cooperation schematic diagram of the 3rd gripping sleeve of the present utility model and the 4th gripping sleeve;
Fig. 7 is the generalized section of Fig. 6.
Embodiment
Referring to figs. 1 through Fig. 7, Fig. 1 to Fig. 7 is the structural representation of the utility model specific embodiment, as shown in the figure, a kind of pin pipe telescopic locking structure, comprise the first body 1, to be located in the first body 1 and can along the first body 1 second body 2 and can lock the rotary-tightening device of the first body 1 and the second body 2 in axial sliding, described rotary-tightening device comprises:
First lock sleeve 31, described first lock sleeve 31 is arranged on inside the first body 1 end, is fixed on the tube wall of the first body 1 outside described first lock sleeve 31, is provided with the first arc shaped surface structure 41 inside described first lock sleeve 31;
Second lock sleeve 32, described second lock sleeve 32 is sheathed and be fixed on outside the second body 2 end, the second arc shaped surface structure 42 is had in the second lock sleeve 32 arranged outside, a diminishing crack is formed between described first arc shaped surface structure 41 and the outer wall of the second body, when the first body 1, when second body 2 relative sliding is to limit position, rotate the first body 1 or the second body 2 makes the second arc shaped surface 42 structure slip into this crack, first arc shaped surface structure 41, second arc shaped surface structure 42 clamps mutually, i.e. lockable first body 1 and the second body 2, realize the function of telescopic adjustment first body 1 and the second body 2, structure is simple, and reliable lock is stablized.
As shown in the figure, described first lock sleeve 31 arranged outside has raised pin 311, the tube wall of described first body 1 end offers the positioning hole 11 corresponding with raised pin 311, and described first lock sleeve 31 is fixed to the first body 1 end by raised pin 311 with coordinating of positioning hole 11; Be provided with projection 321 inside described second lock sleeve 32, the tube wall of described second body 2 end offers the slotted eye 21 corresponding with projection 321, described second lock sleeve 32 is fixed to the second body 2 end by projection 321 with coordinating of slotted eye 21.
As shown in the figure, rotary-tightening device also comprises the 3rd gripping sleeve 33 and the 4th gripping sleeve 34, described 3rd gripping sleeve 33 external diameter is corresponding with the first body 1 internal diameter, described 4th gripping sleeve 34 to be arranged on above the second lock sleeve 32 and to be fixed to the second body 2 end, described 3rd gripping sleeve 33 is fixed between the second lock sleeve 32 and the 4th gripping sleeve 34, and between the second lock sleeve 32 and the 4th gripping sleeve 34, form the rotary spacing space can rotated for the 3rd gripping sleeve 33, the 3rd arc shaped surface structure 43 is provided with inside described 3rd gripping sleeve 33, and the 3rd arc shaped surface structure 43 and the second body 2 outer wall form one reduces key joint gradually, be a four arc shaped surface structure 44 corresponding with this key joint outside described 4th gripping sleeve 34, rotate the first body 1 or the second body 2, 4th arc shaped surface structure 44 of the 4th gripping sleeve 34 is wedged to this key joint, extrude the 3rd gripping sleeve 33 spreading and compress the first body 1 inwall, i.e. lockable first body 1 and the second body 2, first lock sleeve 31 and the second lock sleeve 32 coordinate formation first locking point, 4th gripping sleeve 34 coordinates formation second locking point with the 3rd gripping sleeve 33, two one high and one low corresponding matching of locking point, make the locking of the first body 1 or the second body 2 more reliable, firmly.
As shown in the figure, described first body 1 inwall projection is provided with the raised line 12 extended along the first body 1 length direction, described 3rd gripping sleeve 33 offers the draw-in groove 332 corresponding with raised line 12, described 3rd gripping sleeve 33 is spacing with coordinating of draw-in groove 332 by raised line 12, and the 3rd gripping sleeve 33 is rotated with the first body 1; Described first lock sleeve 31 is also provided with the locating slot 312 coordinated with raised line 12, by this raised line 12 and locating slot 312, strengthens the steadiness that the first lock sleeve 31 is connected with the first body 1 further.
As shown in the figure, the protruding block 341 that a cross section is triangle, square or other abnormal shapes is provided with inside described 4th gripping sleeve 34, described second body 2 is provided with the mounting hole 22 corresponding with this protruding block 341, with coordinating of mounting hole 22, the 4th gripping sleeve 34 is fixed to the second body 2 end by protruding block 341.
In the present embodiment, the first arc shaped surface structure 41, second arc shaped surface structure 42 symmetry on first lock sleeve 31, second lock sleeve 32 arrange two groups, 3rd arc shaped surface structure 43 of the 3rd gripping sleeve 33 and the 4th arc shaped surface structure 44 symmetry of the 4th gripping sleeve 34 arrange two groups, be symmetrical arranged between two, what make to lock more is reliable, certainly in specific implementation process, for strengthening the intensity of locking further, also the quantity of arc shaped surface structure can be set to three groups or many groups, not describe in detail one by one at this.
Above better enforcement of the present utility model is illustrated; certainly; the utility model can also adopt form different from the embodiment described above; the equivalent conversion that those of ordinary skill in the art do under the prerequisite without prejudice to spirit of the present invention or change accordingly, all should belong in protection domain of the present utility model.
Claims (6)
1. a pin pipe telescopic locking structure, comprise the first body (1), be located in the first body (1) and along the first body (1) the second body (2) and the rotary-tightening device of the first body (1) and the second body (2) can be locked in axial sliding, can it is characterized in that: described rotary-tightening device comprises:
First lock sleeve (31), described first lock sleeve (31) is arranged on inside the first body (1) end, described first lock sleeve (31) outside is fixed on the tube wall of the first body (1), and described first lock sleeve (31) inner side is provided with the first arc shaped surface structure (41);
Second lock sleeve (32), described second lock sleeve (32) is sheathed and be fixed on outside the second body (2) end, the second arc shaped surface structure (42) is had in the second lock sleeve (32) arranged outside, a diminishing crack is formed between described first arc shaped surface structure (41) and the outer wall of the second body (2), described second arc shaped surface structure (42) can slip into this crack and be clamped, and namely the first arc shaped surface structure (41) and the second arc shaped surface structure (42) compress mutually with locked first body (1) and the second body (2).
2. a kind of pin pipe telescopic locking structure according to claim 1, it is characterized in that: described first lock sleeve (31) arranged outside has raised pin (311), the tube wall of described first body (1) end offers the positioning hole (11) corresponding with raised pin (311), described second lock sleeve (32) inner side is provided with projection (321), and the tube wall of described second body (2) end offers the slotted eye (21) corresponding with projection (321).
3. a kind of pin pipe telescopic locking structure according to claim 1, it is characterized in that: also comprise the 3rd gripping sleeve (33) and the 4th gripping sleeve (34), described 3rd gripping sleeve (33) external diameter is corresponding with the first body (1) internal diameter, described 4th gripping sleeve (34) is arranged on the second lock sleeve (32) top and is fixed to the second body (2) end, described 3rd gripping sleeve (33) is arranged between the second lock sleeve (32) and the 4th gripping sleeve (34), and between the second lock sleeve (32) and the 4th gripping sleeve (34), form the rotary spacing space can rotated for the 3rd gripping sleeve (33), described 3rd gripping sleeve (33) inner side is provided with the 3rd arc shaped surface structure (43), and the 3rd arc shaped surface structure (43) and the second body (2) outer wall form one reduces key joint gradually, described 4th gripping sleeve (34) outside is one the 4th arc shaped surface structure (44), 4th arc shaped surface structure (44) can be wedged to this key joint, and extrude the 3rd gripping sleeve (33) and compress the first body (1) inwall, with locked first body (1) and the second body (2).
4. a kind of pin pipe telescopic locking structure according to claim 3, it is characterized in that: described first body (1) inwall projection is provided with the raised line (12) extended along the first body (1) length direction, described 3rd gripping sleeve (33) offers the draw-in groove (332) corresponding with raised line (12), described 3rd gripping sleeve (33) is spacing with coordinating of draw-in groove (332) by raised line (12), and the 3rd gripping sleeve (33) is rotated with the first body (1).
5. a kind of pin pipe telescopic locking structure according to claim 4, is characterized in that: described first lock sleeve (31) is provided with the locating slot (312) coordinated with raised line (12).
6. a kind of pin pipe telescopic locking structure according to claim 3, it is characterized in that: described 4th gripping sleeve (34) inner side is provided with a protruding block (341), and described second body (2) is provided with the mounting hole (22) corresponding with this protruding block (341).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420503801.5U CN204113832U (en) | 2014-09-02 | 2014-09-02 | A kind of pin pipe telescopic locking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420503801.5U CN204113832U (en) | 2014-09-02 | 2014-09-02 | A kind of pin pipe telescopic locking structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204113832U true CN204113832U (en) | 2015-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420503801.5U Active CN204113832U (en) | 2014-09-02 | 2014-09-02 | A kind of pin pipe telescopic locking structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204113832U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114414A (en) * | 2015-08-05 | 2015-12-02 | 苏州好洁清洁器具有限公司 | Aluminum alloy expansion pipe |
| WO2018024045A1 (en) * | 2016-08-04 | 2018-02-08 | 中山日高精密工业有限公司 | Telescopic tube and camera support provided with telescopic tube |
| CN107917127A (en) * | 2017-10-21 | 2018-04-17 | 肇庆鼎湖檀树电子科技有限公司 | Expander bar |
-
2014
- 2014-09-02 CN CN201420503801.5U patent/CN204113832U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114414A (en) * | 2015-08-05 | 2015-12-02 | 苏州好洁清洁器具有限公司 | Aluminum alloy expansion pipe |
| WO2018024045A1 (en) * | 2016-08-04 | 2018-02-08 | 中山日高精密工业有限公司 | Telescopic tube and camera support provided with telescopic tube |
| CN107917127A (en) * | 2017-10-21 | 2018-04-17 | 肇庆鼎湖檀树电子科技有限公司 | Expander bar |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 528400 No. 1 Shuguang Road, the first industrial zone, Tanzhou Town, Zhongshan, Guangdong Patentee after: Guangdong Fu picture treasure Image Industry Co., Ltd. Address before: 528400 No. 1 Shuguang Road, the first industrial zone, Tanzhou Town, Zhongshan, Guangdong Patentee before: Zhongshan Nikow Precision Industrial Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |