CN204784014U - An expansion link - Google Patents
An expansion link Download PDFInfo
- Publication number
- CN204784014U CN204784014U CN201520402306.XU CN201520402306U CN204784014U CN 204784014 U CN204784014 U CN 204784014U CN 201520402306 U CN201520402306 U CN 201520402306U CN 204784014 U CN204784014 U CN 204784014U
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- CN
- China
- Prior art keywords
- outer tube
- pressure part
- pressing piece
- periphery wall
- flexible rod
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses an expansion link mainly includes: a pole main part, a locking mechanism, locking mechanism include a locking Assembly and one stir the piece, locking Assembly includes a pressure -containing parts, has seted up a periphery wall correspondence of gradually bursting at the seams curved surface, this pressure -containing parts of while on pressure -containing parts's the periphery wall at least the position department activity of curved surface of gradually bursting at the seams is provided with a pressing piece, should stir can with pressing piece looks joint and promote this pressing piece along the curved surface round trip movement of gradually bursting at the seams on the pressure -containing parts periphery wall. When inner tube and outer tube took place to rotate relatively, inner tube or outer tube then can drive to stir and promote a pressing piece and move along the curved surface that gradually bursts at the seams, this moment the pressing piece gradually from pressure -containing parts's surface toward outer outstanding and push the inner wall of outer tube, play the tight effect of expanding to the relative position of locking inner tube and outer tube, if will relieve the locking effect between inner tube and the outer tube, only need rotate anyway inner tube or outer tube can, easy operation conveniently, the length that can adjust an expansion link wantonly.
Description
Technical field
The utility model relates to photographic goods, particularly a kind of flexible rod for photographic tripod, self-shooting bar.
Background technique
The equipment of current use expansion device has the following: photographic goods, self-shooting bar, the shelf of vidicon camera, fishing rod, clothes hanger, glass pole, existing like product major part by the outer tube sleeve that diameter is large diameter little in pipe form, then by the locking such as buckle, latch inner and outer tubes.These locking modes need to open multiple hole on inner pipe usually, and the range of choices of length of telescopic bar is by number of aperture quantitative limitation, and operation comparatively inconvenience.
China's model utility (CN204061447U) a kind of eccentric pipe structure discloses a kind of eccentric pipe structure, comprises the eccentric body that at least two diameters match, and in the connecting part of every two bodys, slide is installed in body one end that diameter is relatively little.This model utility can provide a kind of flexible convenience, convenient light and handy, easy to assembly, the eccentric pipe structure that according to requirements can regulate its length.But this model utility mainly also exists following deficiency: the complex manufacturing of eccentric body, the bad control of precision, manufacturing mechanism and product versatility not high.
China's model utility (CN203257825U) a kind of new type of continuous expansion device for tripod discloses a kind of new type of continuous expansion device for tripod, include flexible mutual telescopic pipe and the little telescopic pipe greatly that connect, and large telescopic pipe and little telescopic pipe are circular pipe, and be provided with circumvolve lock set kit between telescopic pipe and little telescopic pipe greatly.This model utility locking effect is good, stable performance, and uses simple to operate.But this model utility mainly also exists following deficiency: although this model utility have employed center of circle pipe, its locking mechanism is still relatively complicated.
Model utility content
In order to solve the problem, it is simple that the purpose of this utility model is to provide a kind of structure, is not only convenient to production and processing, and easy to use, that locking effect is good flexible rod.
The utility model is the technological scheme that its technical problem of solution adopts:
A kind of flexible rod, mainly comprises: a bar main body, and described bar main body is made up of the mutual pivot bush unit of outer tube of pipe in more than and more than, and described interior pipe can relative to being socketed in the outer tube rotation of its appearance and the axial direction along this outer tube moves;
Locking mechanism, this locking mechanism is arranged between described inner and outer tubes, and described locking mechanism comprises latch assembly and shifting part;
Latch assembly, described latch assembly comprises a pressure part, and the periphery wall of described pressure part at least offers an involute surface, and the position of the corresponding described involute surface of the periphery wall of this pressure part is movably set with a pressing piece simultaneously;
Shifting part, this shifting part can promote this pressing piece move around along the involute surface on described pressure part periphery wall with the clamping of described pressing piece phase; Described pressure part and shifting part one are arranged on interior pipe, and another is then arranged on described outer tube.
As the improvement of technique scheme, described pressure part is fixed on described interior pipe one end towards outer tube, and described shifting part is arranged on outer tube.
As the further improvement of technique scheme, one end of the contiguous described pressure part of described outer tube be also provided with one can with this pressure part phase clamping shackle member.
Further, described shackle member and pressure part being at least provided with respectively one can overlapped or lamination one lamination two that is separated from each other.
In the utility model, described shifting part is be opened in the projection on described outer tube wall.
Preferably, described projection is the raised line that an axial direction along described outer tube is arranged.
Further preferably, described projection is the salient point that several form a line along the axial direction uniform intervals of described outer tube, and the spacing between adjacent two salient points is less than the width of described pressing piece.
Preferred embodiment of the present utility model, described pressing piece is provided with protruding block that can be suitable with the involute surface on pressure part on a side of described pressure part.
Further preferably, the periphery wall of described pressure part offers two involute surfaces, and the position of corresponding two involute surfaces of the periphery wall of this pressure part is movably set with a pressing piece respectively.
Again further preferably, described shifting part is two raised lines being opened on described outer tube wall, and two raised lines are arranged along the axial direction of described outer tube.
In the utility model, the periphery wall of described pressure part also offers a sliding-groove, described pressing piece is provided with and can embeds in this sliding-groove and the slide block slided along this sliding-groove.
The beneficial effects of the utility model are: because the utility model is by arranging a locking mechanism between the inner and outer pipe sections, this locking mechanism comprises a latch assembly and a shifting part, described latch assembly comprises a pressure part, the periphery wall of described pressure part at least offers an involute surface, the position of the corresponding described involute surface of the periphery wall of this pressure part is movably set with a pressing piece simultaneously, described pressure part and shifting part one are arranged on interior pipe, another is then arranged on described outer tube, therefore when inner and outer tubes relatively rotate, interior pipe or outer tube then can drive shifting part to promote pressing piece and move along involute surface, now pressing piece is given prominence to outward from the surface of pressure part gradually and is extruded the inwall of outer tube, play the effect of swelling, thus the relative position of locking inner and outer tubes, to remove the locking effect between inner and outer tubes, only need anyway to rotate interior pipe or outer tube, simple to operation, can the length of adjustable telescopic rod arbitrarily, simultaneously because the utility model is by pressing piece swelling inner and outer tubes, therefore inner and outer tubes can be pipe, so that production and processing, locking mechanism part of the present utility model is few in addition, is convenient to production and processing and assembling, contributes to reducing cost of production.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the surface structure schematic diagram of the utility model one preferred embodiment;
Fig. 2 is the worm's eye view of the utility model one preferred embodiment;
Fig. 3 is the STRUCTURE DECOMPOSITION schematic diagram of the utility model one preferred embodiment;
Fig. 4 is the assembly structure schematic diagram of pressure part and interior pipe in the utility model one preferred embodiment;
Fig. 5 is the parts drawing of shackle member in the utility model one preferred embodiment;
Fig. 6 is the parts drawing of the utility model one preferred embodiment middle external tube;
Fig. 7 is the parts drawing of interior pipe in the utility model one preferred embodiment;
Fig. 8 is the parts drawing of latch assembly in the utility model one preferred embodiment;
Fig. 9 is the assembly structure schematic diagram of pressing piece and another angle of pressure part in the utility model one preferred embodiment;
Figure 10 is the assembly structure decomposing schematic representation of pressing piece and pressure part in the utility model one preferred embodiment;
Figure 11 is the parts drawing of pressure part in the utility model one preferred embodiment;
Figure 12 is the parts drawing of another angle of pressure part in the utility model one preferred embodiment;
Figure 13 is the parts drawing of pressing piece in the utility model one preferred embodiment;
Figure 14 is the surface structure schematic diagram of the utility model one preferred embodiment when removing outer tube.
Embodiment
Referring to figs. 1 through Figure 14, a kind of flexible rod, mainly comprise: a bar main body 10, described bar main body 10 by pipe 11 in more than and more than one outer tube 12 mutually pivot bush unit formed, described interior pipe 11 can rotate relative to the outer tube 12 being socketed in its appearance and axial direction along this outer tube 12 moves, here, the quantity of described interior pipe 11 and outer tube 12 is not defined as one, may be also two, three or many, the quantity of interior pipe 11 and outer tube 12 specifically can unrestricted choice according to actual needs;
Locking mechanism, this locking mechanism is arranged between described interior pipe 11 and outer tube 12, and described locking mechanism comprises latch assembly 20 and shifting part 30; Described latch assembly 20 comprises a pressure part 21, the periphery wall of described pressure part 21 at least offers an involute surface 210, and the position of the corresponding described involute surface 210 of the periphery wall of this pressure part 21 is movably set with a pressing piece 22 simultaneously; Described shifting part 30 can promote this pressing piece 22 move around along the involute surface 210 on described pressure part 21 periphery wall with described pressing piece 22 phase clamping;
Described pressure part 21 and shifting part 30 one are arranged on interior pipe 11, and another is then arranged on described outer tube 12.Namely when pressure part 21 is arranged on interior pipe 11, shifting part 30 is arranged on outer tube 12; If when pressure part 21 is arranged on outer tube 12, shifting part 30 is arranged on interior pipe 11.Here, as preferred embodiment of the present utility model, described pressure part 21 is fixed on described interior pipe 11 one end towards outer tube 12, described shifting part 30 is arranged on outer tube 12, the quantity of above-mentioned locking mechanism is determined according to interior pipe 11 and the quantity of outer tube 12, is provided with a locking mechanism between adjacent interior pipe 11 and outer tube 12.
Because the utility model by arranging a locking mechanism between interior pipe 11 and outer tube 12, this locking mechanism comprises latch assembly 20 and a shifting part 30, described latch assembly comprises a pressure part 21, the periphery wall of described pressure part 21 at least offers an involute surface 210, the position of the corresponding described involute surface 210 of the periphery wall of this pressure part 21 is movably set with a pressing piece 22 simultaneously, described pressure part 21 and shifting part 30 one are arranged on interior pipe 11, another is then arranged on described outer tube 12, therefore when interior pipe 11 and outer tube 12 relatively rotate, interior pipe 11 or outer tube 12 can drive shifting part 30 to promote pressing piece 22 and move along involute surface 210, now pressing piece 22 is given prominence to outward from the surface of pressure part 21 gradually and is extruded the inwall of outer tube 12, play the effect of swelling, thus the relative position of the interior pipe 11 of locking and outer tube 12, to remove the locking effect between interior pipe 11 and outer tube 12, only need anyway to rotate interior pipe 11 or outer tube 12, simple to operation, can the length of adjustable telescopic rod arbitrarily, simultaneously because the utility model is by pipe 11 and outer tube 12 in pressing piece 22 swelling, therefore, pipe 11 and outer tube 12 can be pipe, so that production and processing, locking mechanism part of the present utility model is few in addition, is convenient to production and processing and assembling, contributes to reducing cost of production.
Can mutually depart to prevent flexible rod interior pipe 11 and outer tube 12 when extending, in the utility model, one end of the contiguous described pressure part 21 of described outer tube 12 be also provided with one can with this pressure part 21 phase clamping shackle member 40, by arranging a shackle member 40 in one end of the contiguous described pressure part 21 of outer tube 12, when interior pipe 11 stretches out outside certain length from outer tube 12, be fixed on described interior pipe 11 towards one end of outer tube 12 pressure part 21 namely with the clamping of described shackle member 40 phase, thus pipe 11 continues to stretch out from outer tube 12 in stoping, and then pipe 11 and outer tube 12 can not be separated from each other in ensureing.
In order to the locking effect of flexible rod of the present utility model can be made better, in the utility model, described shackle member 40 and pressure part 21 being at least provided with respectively one can the overlapped or lamination 1 that is separated from each other and lamination 2 212.In the utility model, described shackle member 40 and pressure part 21 being respectively arranged with two pieces can the overlapped or lamination 1 that is separated from each other and lamination 2 212, two blocks of above-mentioned laminations 1 are evenly arranged at the periphery wall middle and lower part of described shackle member 40, and two blocks of above-mentioned laminations 2 212 are then evenly arranged at the periphery wall top of described pressure part 21.
When interior pipe 11 and outer tube 12 relatively rotate, interior pipe 11 and outer tube 12 drive pressure part 21 and shackle member 40 to relatively rotate respectively, now lamination 1 inserts between lamination 2 212 and interior pipe 11 gradually, because the gap between interior pipe 11 and lamination 2 212 immobilizes, when lamination 1 inserts therebetween, lamination 1, interior pipe 11 are together with pressure part 21 swelling, in locking, pipe 11 can not shackle member 40 move relatively, and then lock interior pipe 11 and outer tube 12, ensure that relative position between the two immobilizes; When interior pipe 11 and outer tube 12 rotate backward, lamination 1 and lamination 2 212 oppositely move and are separated from each other, now lamination 1 and lamination 2 212 no longer overlapping, therefore can not extrude interior pipe 11, so remove shackle member 40 to the locking effect of interior pipe 11.In the utility model, by lamination 1 and pressing piece 22 from pipe 11 and outer tube 12 in two different positions respectively swelling, both can lock interior pipe 11 to immobilize with the relative position of outer tube 12, can prevent from that relative tilt occurs between interior pipe 11 and outer tube 12 to swing simultaneously, and then make flexible rod of the present utility model go for different occasions.Here, as preferred embodiment of the present utility model, the thickness of described lamination 1 and the thickness of lamination 2 212 increase gradually along its free end to the direction of joint, and free end mentioned here refers to the position that lamination 1 and lamination 2 212 contact time overlapped at first.
In the utility model, described shifting part 30 is for being opened in the projection on described outer tube 12 inwall.Preferably, described projection is the raised line that an axial direction along described outer tube 12 is arranged, certainly above-mentioned projection is except can be except raised line, can also be several salient points formed a line along the axial direction uniform intervals of described outer tube 12, and the spacing between adjacent two salient points is less than the width of described pressing piece 22, here, the width of said pressing piece 22 refers to the length of pressing piece 22 on the axial direction of outer tube 12.
In order to make pressing piece 22 more promptly to give prominence to outward from pressure part 21 outer surface, preferably, described pressing piece 22 is provided with protruding block 220 that can be suitable with the involute surface 210 on pressure part 21 on a side of described pressure part 21.When shifting part 30 promote pressing piece 22 move along the involute surface 210 of pressure part 21 time, protruding block 220 on pressing piece 22 also moves along involute surface 210, and then makes the appearance of pressing piece 22 can the outstanding outward and inwall of swelling outer tube 12 of the outer surface of more promptly pressure part 21.
Here, in order to make pressing piece 22 can swelling outer tube 12 better, in the utility model, preferably, the periphery wall of described pressure part 21 offers two involute surfaces 210, and the position of corresponding two involute surfaces 210 of the periphery wall of this pressure part 21 is movably set with a pressing piece 22 respectively, is extruded the inwall of swelling outer tube 12 by two pressing pieces 22 simultaneously, thus outer tube 12 and the relative position of interior pipe 11 can be locked better, ensure that telescopic pipe can not shrink automatically; Further preferably, the periphery wall of described pressure part 21 evenly offers four involute surfaces 210, and for the ease of the production and processing of pressing piece 22 and assembling, the quantity of described pressing piece 22 is still two, each pressing piece 22 all offers two protruding blocks 220 suitable with described involute surface 210, specifically see Figure 13.Quantity due to pressing piece 22 is two, and correspondingly, described shifting part 30 is two raised lines being opened on described outer tube 12 inwall, and two raised lines are arranged along the axial direction of described outer tube 12.In the utility model, promote pressing piece 22 for the ease of two raised lines to move along the involute surface 210 of pressure part 21 simultaneously, in the utility model, preferably, two pressing pieces 22 are arranged on the periphery wall of pressure part 21, and the contiguous place of connecing, the two ends of two pressing pieces 22 is remaining has one described shifting part 30 can be allowed to embed breach 50 in it.
Further, be movably installed on pressure part 21 for the ease of pressing piece 22, preferably, the periphery wall of described pressure part 21 also offers a sliding-groove 211, described pressing piece 22 is provided with and can embeds in this sliding-groove 211 and the slide block 221 slided along this sliding-groove 211.Pressing piece 22 moving card can be made to be connected on pressure part 21 by this slide block 221, easy to assembly.
The foregoing is only preferred embodiments of the present utility model, as long as the technological scheme realizing the utility model object with basic same approach all belongs within protection domain of the present utility model.
Claims (10)
1. a flexible rod, is characterized in that, mainly comprises:
One bar main body (10), described bar main body (10) is made up of the mutual pivot bush unit of outer tube (12) of pipe (11) in more than and more than, and described interior pipe (11) can relative to being socketed in outer tube (12) rotation of its appearance and the axial direction along this outer tube (12) moves;
Locking mechanism, this locking mechanism is arranged between described interior pipe (11) and outer tube (12), and described locking mechanism comprises latch assembly (20) and shifting part (30);
Latch assembly (20), described latch assembly (20) comprises a pressure part (21), the periphery wall of described pressure part (21) at least offers an involute surface (210), the position of the corresponding described involute surface (210) of the periphery wall of this pressure part (21) is movably set with a pressing piece (22) simultaneously;
Shifting part (30), this shifting part (30) can promote this pressing piece (22) move around along the involute surface (210) on described pressure part (21) periphery wall with described pressing piece (22) phase clamping;
Described pressure part (21) and shifting part (30) one are arranged on interior pipe (11), and another is then arranged on described outer tube (12).
2. a kind of flexible rod according to claim 1, is characterized in that: described pressure part (21) is fixed on described interior pipe (11) one end towards outer tube (12), and described shifting part (30) is arranged on outer tube (12).
3. a kind of flexible rod according to claim 2, is characterized in that: one end of the contiguous described pressure part (21) of described outer tube (12) be also provided with one can with this pressure part (21) phase clamping shackle member (40).
4. a kind of flexible rod according to claim 3, is characterized in that: described shackle member (40) and pressure part (21) being at least provided with respectively one can the overlapped or lamination one (41) that is separated from each other and lamination two (212).
5. a kind of flexible rod according to claim 1 or 2 or 3 or 4, is characterized in that: described shifting part (30) is for being opened in the projection on described outer tube (12) inwall.
6. a kind of flexible rod according to claim 5, is characterized in that: described projection is the raised line that an axial direction along described outer tube (12) is arranged.
7. a kind of flexible rod according to claim 5, it is characterized in that: described projection is the salient point that several form a line along the axial direction uniform intervals of described outer tube (12), and the spacing between adjacent two salient points is less than the width of described pressing piece (22).
8. a kind of flexible rod according to claim 1, is characterized in that: described pressing piece (22) is provided with protruding block (220) that can be suitable with the involute surface (210) on pressure part (21) on a side of described pressure part (21).
9. a kind of flexible rod according to claim 1, it is characterized in that: the periphery wall of described pressure part (21) offers two involute surfaces (210), and the position of corresponding two involute surfaces (210) of the periphery wall of this pressure part (21) is movably set with a pressing piece (22) respectively.
10. a kind of flexible rod according to claim 1, it is characterized in that: the periphery wall of described pressure part (21) also offers a sliding-groove (211), described pressing piece (22) is provided with and can embeds in this sliding-groove (211) and the slide block (221) slided along this sliding-groove (211).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520402306.XU CN204784014U (en) | 2015-06-11 | 2015-06-11 | An expansion link |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520402306.XU CN204784014U (en) | 2015-06-11 | 2015-06-11 | An expansion link |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204784014U true CN204784014U (en) | 2015-11-18 |
Family
ID=54524070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520402306.XU Withdrawn - After Issue CN204784014U (en) | 2015-06-11 | 2015-06-11 | An expansion link |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204784014U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104948548A (en) * | 2015-06-11 | 2015-09-30 | 中山豪真精工制品有限公司 | Telescopic rod |
| CN112283221A (en) * | 2020-08-10 | 2021-01-29 | 厦门群典家居饰品有限公司 | Extension tube assembly |
| CN114215831A (en) * | 2021-12-14 | 2022-03-22 | 中国水利水电第五工程局有限公司 | Municipal works topography survey and drawing sighting rod |
-
2015
- 2015-06-11 CN CN201520402306.XU patent/CN204784014U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104948548A (en) * | 2015-06-11 | 2015-09-30 | 中山豪真精工制品有限公司 | Telescopic rod |
| CN104948548B (en) * | 2015-06-11 | 2017-10-17 | 中山豪真精工制品有限公司 | A kind of expansion link |
| CN112283221A (en) * | 2020-08-10 | 2021-01-29 | 厦门群典家居饰品有限公司 | Extension tube assembly |
| CN114215831A (en) * | 2021-12-14 | 2022-03-22 | 中国水利水电第五工程局有限公司 | Municipal works topography survey and drawing sighting rod |
| CN114215831B (en) * | 2021-12-14 | 2024-02-20 | 中国水利水电第五工程局有限公司 | Municipal works topography survey and drawing is with survey and drawing mark post |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151118 Effective date of abandoning: 20171017 |
|
| AV01 | Patent right actively abandoned |