CN204533095U - Expansion locking device and there is the flexible rod of this device - Google Patents
Expansion locking device and there is the flexible rod of this device Download PDFInfo
- Publication number
- CN204533095U CN204533095U CN201520113358.5U CN201520113358U CN204533095U CN 204533095 U CN204533095 U CN 204533095U CN 201520113358 U CN201520113358 U CN 201520113358U CN 204533095 U CN204533095 U CN 204533095U
- Authority
- CN
- China
- Prior art keywords
- pipe fitting
- locking device
- eccentric boss
- damping fin
- wall
- 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
Links
Landscapes
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model discloses a kind of expansion locking device, comprising: the first pipe fitting; Second pipe fitting, is inserted in the first pipe fitting and forms sleeve structure; Damping fin, be located between the second pipe fitting and the first pipe fitting, inside and outside damping fin both sides respectively with the outer wall of the second pipe fitting and the inwall of the first pipe fitting contact, inside damping fin or outside is provided with eccentric boss, and eccentric boss increases gradually along the second pipe fitting circumferencial direction thickness.Adopt the expansion locking device of above technological scheme, be only made up of three parts, structure is very simple, easy to process, and low cost of manufacture is very applicable to industry or routine use.First pipe fitting and the second pipe fitting can use the manufacture of the common pipe materials such as carbon fibre pipe fitting or metal pipe element.And whole expansion locking device profile is tubular shape, not only more attractive in appearance, and pipe fitting uniform force, not easily rock and fracture, making expansion locking device more firm.The invention also discloses a kind of flexible rod with this expansion locking device.
Description
Technical field
The utility model relates to mechanical connecting device, particularly a kind of expansion locking device and have the flexible rod of this device.
Background technique
Up to the present, existing flexible rod is all made up of some pipe joints, and between every pipe joint, adopt C shape lock sheet to add cam structure connection, must lock section by section during use, and user is firmly excessive, the stressed easy generation C shape lock sheet of this conventional construction spins existing picture in pipe, causes cannot locking, using.Nihon Velbon Seiki Kogyo K.K have developed a kind of expansion device for tripod, and applies for a patent (number of patent application is 00802299.2), and this expansion device is the telescopic pipe of fan-shaped (arc shaped surface).Because the pipe shape of the telescopic pipe of this structure is special, special mould must be used to process, bring restriction to production, and can not use carbon fibre tube, can only use aluminium matter pipe, not be durable, profile also unsightly, can only be applied to the production of low and middle-end equipment.
Model utility content
An object of the present utility model is to provide a kind of expansion locking device, and another object is to provide a kind of flexible rod with this expansion locking device.
According to an aspect of the present utility model, provide a kind of expansion locking device, comprising:
First pipe fitting;
Second pipe fitting, is inserted in the first pipe fitting and forms sleeve structure, and the second pipe fitting can rotate at circumferencial direction and adjustable second pipe fitting stretches out the distance of the first pipe fitting;
Damping fin, be located between the second pipe fitting and the first pipe fitting, inside and outside damping fin both sides respectively with the outer wall of the second pipe fitting and the inwall of the first pipe fitting contact, inside damping fin or outside is provided with eccentric boss, eccentric boss increases gradually along the second pipe fitting circumferencial direction thickness, second pipe fitting circumferentially can make eccentric boss press in the first pipe fitting inner wall relative to the rotation of the first pipe fitting at one, increase damping fin and the second pipe fitting and the damping between the two of the first pipe fitting thus, thus the second pipe fitting and the first pipe fitting are fixed, second pipe fitting can make eccentric boss and the first pipe fitting inner wall unclamp relative to the first pipe fitting another rotating circumferentially, thus adjustable second pipe fitting stretches out the distance of the first pipe fitting.
Adopt the expansion locking device of above technological scheme, be only made up of three parts, structure is very simple, easy to process, and low cost of manufacture is very applicable to industry or routine use.Damping fin adopts plastic-injection shaping or metal stamping formed.The shape of the first pipe fitting and the second pipe fitting is common, easy to process, can use the manufacture of the common pipe materials such as carbon fibre pipe fitting or metal pipe element.And whole expansion locking device profile is tubular shape, not only more attractive in appearance, and pipe fitting uniform force, not easily rock and fracture, making expansion locking device more firm.
In some embodiments, eccentric boss is located at inside damping fin, and the second pipe fitting is provided with the containing groove for holding eccentric boss.Containing groove can be formed by the direct perforate in corresponding position on the second pipe fitting, also can be formed by arranging two or more protuberances at the second pipe fitting outer wall, the space formed between two adjacent protuberances is for holding eccentric boss, can also be formed by arranging a protuberance at the second pipe fitting outer wall, annular space around second pipe fitting outer wall cuts off by this protuberance, cuts off the space that for holding eccentric boss.
In some embodiments, eccentric boss is located at outside damping fin, and the first pipe fitting is provided with the containing groove for holding eccentric boss.Equally, containing groove can be formed by the direct perforate in corresponding position on the first pipe fitting, also can be formed by arranging two or more protuberances at the first pipe fitting inner wall, the space formed between two adjacent protuberances is for holding eccentric boss, can also be formed by arranging a protuberance at the first pipe fitting inner wall, annular space around first pipe fitting inner wall cuts off by this protuberance, cuts off the space that for holding eccentric boss.
According to another aspect of the present utility model, provide a kind of expansion locking device, comprising:
First pipe fitting;
Second pipe fitting, be inserted in the first pipe fitting and form sleeve structure, second pipe fitting can rotate at circumferencial direction and adjustable second pipe fitting stretches out the distance of the first pipe fitting, and the second pipe fitting outer wall or the first pipe fitting inner wall are provided with eccentric boss, and eccentric boss increases gradually along the second pipe fitting circumferencial direction thickness;
Damping fin, be located between the second pipe fitting and the first pipe fitting, inside and outside damping fin both sides respectively with the outer wall of the second pipe fitting and the inwall of the first pipe fitting contact, damping fin is provided with the containing groove for holding eccentric boss, second pipe fitting circumferentially can make eccentric boss press in the first pipe fitting inner wall relative to the rotation of the first pipe fitting at one, increase damping fin and the second pipe fitting and the damping between the two of the first pipe fitting thus, thus the second pipe fitting and the first pipe fitting are fixed, second pipe fitting can make eccentric boss and the first pipe fitting inner wall unclamp relative to the first pipe fitting another rotating circumferentially, thus adjustable second pipe fitting stretches out the distance of the first pipe fitting.This expansion locking device, is only made up of three parts, and structure is very simple, easy to process, and low cost of manufacture is very applicable to industry or routine use.
In some embodiments, eccentric boss is wedge shape, and containing groove is rectangle or trapezoidal, and eccentric boss and containing groove are all arranged along the second pipe fitting circumferencial direction.Eccentric boss enters after in containing groove, and due to the interaction at eccentric boss edge and containing groove edge, can prevent the second pipe fitting from rocking at the first inside pipe fitting, this expansion locking device is more firm.
In some embodiments, damping fin is provided with locating slot, and the first pipe fitting inner wall or the second pipe fitting outer wall are provided with the locating column corresponding with locating slot.Locating column is generally axially arranged along the first pipe fitting.Damping fin not only can be made thus to move along locating column, and can damping fin be made with the second pipe fitting rotation according to different situations or damping fin be rotated with the first pipe fitting.Generally, when eccentric boss or containing groove are located at the second pipe fitting, locating column is located at the first pipe fitting inner wall, and damping fin rotates with the first pipe fitting; Otherwise locating column is located at the second pipe fitting outer wall, and damping fin rotates with the second pipe fitting.
In some embodiments, damping fin is provided with locating column, and the first pipe fitting inner wall or the second pipe fitting outer wall are provided with the locating slot corresponding with locating column.
In some embodiments, the first pipe fitting inner wall or the second pipe fitting outer wall are provided with the on-slip post stoping damping fin to depart from the first pipe fitting or the second pipe fitting.Can prevent damping fin from coming off thus.
According to another aspect of the present utility model, provide a kind of flexible rod, comprising the expansion locking device that at least one is above-mentioned.The feature of this flexible rod is that only need rotate tubule (final section tubule) can lock a few pipe joint in the lump, extremely easy to use.
Accompanying drawing explanation
Fig. 1 is the erection drawing of the expansion locking device of a kind of mode of execution of the utility model.
The structural representation of the first pipe fitting that Fig. 2 is expansion locking device shown in Fig. 1.
Fig. 3 is the structural representation of the damping fin of expansion locking device shown in Fig. 1.
The internal structure schematic diagram that Fig. 4 is expansion locking device shown in Fig. 1.
Fig. 5 is the internal structure schematic diagram of the expansion locking device of the another kind of mode of execution of the utility model.
Fig. 6 is the internal structure schematic diagram of the expansion locking device of the another kind of mode of execution of the utility model.
Fig. 7 is the internal structure schematic diagram of the expansion locking device of the another kind of mode of execution of the utility model.
Fig. 8 is the internal structure schematic diagram of the expansion locking device of another mode of execution of the utility model.
Fig. 9 is the structural representation of the flexible rod of a kind of mode of execution of the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Embodiment 1
Fig. 1 to Fig. 4 show schematically show the expansion locking device according to a kind of mode of execution of the present utility model.As shown in the figure, this device comprises the second pipe fitting 11, damping fin 12 and the first pipe fitting 13.
Wherein, the second pipe fitting 11 is inserted in the first pipe fitting 13 and forms sleeve structure.Second pipe fitting 11 can rotate at circumferencial direction and adjustable second pipe fitting 11 stretches out the distance of the first pipe fitting 13.
Damping fin 12 is located between the second pipe fitting 11 and the first pipe fitting 13.Inside and outside damping fin 12 both sides respectively with the outer wall of the second pipe fitting 11 and the inwall of the first pipe fitting 13 contact.
The eccentric boss 16 of wedge shape is provided with inside damping fin 13.Eccentric boss 16 increases gradually along the second pipe fitting 11 circumferencial direction thickness.Second pipe fitting 11 is provided with the containing groove 17 for holding eccentric boss 16.
Containing groove 17 is rectangle or trapezoidal, and it is formed by the hole that the second pipe fitting 11 is offered.
Eccentric boss 16 is all arranged along the second pipe fitting 11 circumferencial direction with containing groove 17.Eccentric boss 16 to enter in containing groove after 17, due to the interaction at eccentric boss 16 edge and containing groove 17 edge, the second pipe fitting 11 can be prevented at the first pipe fitting 13 inside shaking,
Damping fin 12 is provided with locating slot 14.First pipe fitting 13 inwall is provided with the locating column 15 corresponding with locating slot 14.Locating column 15 is axially arranged along the first pipe fitting.Damping fin 12 not only can be made thus to move along locating column 15, and damping fin 12 can be rotated with the first pipe fitting 13 according to different situations.
First pipe fitting 13 inwall is provided with the on-slip post 18 stoping damping fin 12 to depart from the first pipe fitting 13, thus prevents damping fin 12 from coming off.
Second pipe fitting 11 circumferentially can make eccentric boss 16 leave containing groove 17 relative to the rotation of the first pipe fitting 13 at one, press in the first pipe 13 inwall, increase damping fin 12 and the second pipe fitting 11 and the first pipe fitting 13 damping between the two thus, thus the second pipe fitting 11 and the first pipe fitting 13 are fixed.Second pipe fitting 11 can make eccentric boss 16 enter containing groove 17 relative to the first pipe fitting 13 another rotating circumferentially, unclamp, thus adjustable second pipe fitting 11 stretches out the distance of the first pipe fitting 13 with the first pipe fitting 13 inwall.
Adopt the expansion locking device of above technological scheme, be only made up of three parts, structure is very simple, easy to process, and low cost of manufacture is very applicable to industry or routine use.Damping fin 12 can adopt plastic-injection shaping or metal stamping formed.The shape of the first pipe fitting 11 and the second pipe fitting 13 is common, easy to process, can use the manufacture of the common pipe materials such as carbon fibre pipe fitting or metal pipe element.And whole expansion locking device profile is tubular shape, not only more attractive in appearance, and pipe fitting uniform force, not frangibility, make expansion locking device more firm.
Embodiment 2
Fig. 5 show schematically show the expansion locking device according to another kind of mode of execution of the present utility model.Be with the difference of embodiment 1, eccentric boss 16 is located at outside damping fin 12.As shown in the figure, the first pipe fitting 13 is provided with the containing groove 17 for holding eccentric boss 16.Second pipe fitting 11 outer wall is provided with locating column 15 and on-slip post 18.Locating column 15 matches with the locating slot 14 of damping fin 12.
Embodiment 3
Fig. 6 show schematically show the expansion locking device according to another kind of mode of execution of the present utility model.Be with the difference of embodiment 1, locating column 15 is located at outside damping fin 12.First pipe fitting 13 inwall is provided with the locating slot 14 corresponding with locating column 15.As shown in the figure, eccentric boss 16 is located at inside damping fin 12.Second pipe fitting 11 outer wall is provided with a protuberance 19.Annular space around second pipe fitting 11 outer wall cuts off by protuberance 19, cuts off the space and forms containing groove 17 for holding eccentric boss 16.
In other examples, the second pipe fitting 11 outer wall can also be provided with multiple protuberance 19, forms containing groove 17 for holding eccentric boss 16 between two adjacent protuberances 19.
Embodiment 4
Fig. 7 show schematically show the expansion locking device according to another kind of mode of execution of the present utility model.Be with the difference of embodiment 2, the first pipe fitting 13 inwall is provided with three protuberances 19.As shown in the figure, eccentric boss 16 is located at outside damping fin 12.Containing groove 17 is formed for holding eccentric boss 16 between two adjacent protuberances 19.In a further embodiment, the first pipe fitting 13 inwall can also be provided with two, four or more protuberance 19.
In other examples, the first pipe fitting 13 inwall can also be provided with a protuberance 19.The annular space of the first pipe fitting 13 periphery of inner wall cuts off by protuberance 19, cuts off the space and forms containing groove 17 for holding eccentric boss 16.
Embodiment 5
Fig. 8 show schematically show the expansion locking device according to another kind of mode of execution of the present utility model.Be with the difference of embodiment 2, the first pipe fitting 13 inwall is located at by eccentric boss 16, and damping fin 12 is provided with the containing groove 17 for holding eccentric boss 16.
In other embodiment, containing groove 17 also can by being formed at two or more protuberances of damping fin 12 arranged outside, the space formed between two adjacent protuberances is for holding eccentric boss, can also by being formed at damping fin 12 arranged outside protuberance, the annular space of damping fin 12 outer periphery cuts off by this protuberance, cuts off the space that for holding eccentric boss.
In other some embodiments, eccentric boss 16 can also be located at the outer wall of the second pipe fitting.
Embodiment 6
Fig. 8 show schematically show the flexible rod according to a kind of mode of execution of the present utility model.As shown in the figure, this device comprises the first short tube 21, second short tube 22 and the 3rd short tube 23.Wherein, the second short tube 22 inserts in the first short tube 21 and forms sleeve structure, and the 3rd short tube 23 inserts in the second short tube 22 and forms sleeve structure.Second short tube 22 can rotate at circumferencial direction and adjustable its stretches out the distance of the first short tube 21, and the 3rd short tube 23 can rotate at circumferencial direction and adjustable its stretches out the distance of the second short tube 22.All there is between second short tube 22 and the first short tube 21 and between the 3rd short tube 23 and the second short tube 22 the expansion locking device A that the utility model provides.The feature of this flexible rod is that only need rotate the 3rd short tube 23 can lock three joint short tubes in the lump, extremely easy to use.This flexible rod can be applied in tripod, self-shooting bar, clothes hanger or other industry and every-day object.
Above-described is only mode of executions more of the present utility model.For the person of ordinary skill of the art, under the prerequisite not departing from the utility model creation design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (9)
1. expansion locking device, is characterized in that, comprising:
First pipe fitting;
Second pipe fitting, is inserted in described first pipe fitting and forms sleeve structure, and described second pipe fitting can rotate at circumferencial direction and adjustable described second pipe fitting stretches out the distance of described first pipe fitting;
Damping fin, be located between described second pipe fitting and the first pipe fitting, inside and outside described damping fin both sides respectively with the outer wall of the second pipe fitting and the inwall of the first pipe fitting contact, inside described damping fin or outside is provided with eccentric boss, described eccentric boss increases gradually along described second pipe fitting circumferencial direction thickness, described second pipe fitting circumferentially can make described eccentric boss press in described first pipe fitting inner wall relative to the rotation of described first pipe fitting at one, increase described damping fin and described second pipe fitting and the damping between the two of described first pipe fitting thus, thus described second pipe fitting and described first pipe fitting are fixed, described second pipe fitting can make described eccentric boss and described first pipe fitting inner wall unclamp relative to described first pipe fitting another rotating circumferentially, thus adjustable described second pipe fitting stretches out the distance of described first pipe fitting.
2. expansion locking device according to claim 1, is characterized in that, described eccentric boss is established inside described damping fin, and described second pipe fitting is provided with the containing groove for holding described eccentric boss.
3. expansion locking device according to claim 1, is characterized in that, described eccentric boss is located at outside described damping fin, and described first pipe fitting is provided with the containing groove for holding described eccentric boss.
4. expansion locking device, is characterized in that, comprising:
First pipe fitting;
Second pipe fitting, be inserted in described first pipe fitting and form sleeve structure, described second pipe fitting can rotate at circumferencial direction and adjustable described second pipe fitting stretches out the distance of described first pipe fitting, described second pipe fitting outer wall or the first pipe fitting inner wall are provided with eccentric boss, and described eccentric boss increases gradually along described second pipe fitting circumferencial direction thickness;
Damping fin, be located between described second pipe fitting and the first pipe fitting, inside and outside described damping fin both sides respectively with the outer wall of the second pipe fitting and the inwall of the first pipe fitting contact, described damping fin is provided with the containing groove for holding described eccentric boss, described second pipe fitting circumferentially can make described eccentric boss press in described first pipe fitting inner wall relative to the rotation of described first pipe fitting at one, increase described damping fin and described second pipe fitting and the damping between the two of described first pipe fitting thus, thus described second pipe fitting and described first pipe fitting are fixed, described second pipe fitting can make described eccentric boss and described first pipe fitting inner wall unclamp relative to described first pipe fitting another rotating circumferentially, thus adjustable described second pipe fitting stretches out the distance of described first pipe fitting.
5. the expansion locking device according to Claims 2 or 3 or 4, is characterized in that, described eccentric boss is wedge shape, and described containing groove is rectangle or trapezoidal, and described eccentric boss and described containing groove are all arranged along described second pipe fitting circumferencial direction.
6. the expansion locking device according to claim 1 or 2 or 3 or 4, it is characterized in that, described damping fin is provided with locating slot, and described first pipe fitting inner wall or the second pipe fitting outer wall are provided with the locating column corresponding with described locating slot.
7. the expansion locking device according to claim 1 or 2 or 3 or 4, it is characterized in that, described damping fin is provided with locating column, and described first pipe fitting inner wall or the second pipe fitting outer wall are provided with the locating slot corresponding with described locating column.
8. the expansion locking device according to claim 1 or 2 or 3 or 4, is characterized in that, described first pipe fitting inner wall or the second pipe fitting outer wall are provided with the on-slip post stoping described damping fin to depart from described first pipe fitting or the second pipe fitting.
9. flexible rod, is characterized in that, comprises at least one expansion locking device as claimed in claim 1 or 2 or 3 or 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520113358.5U CN204533095U (en) | 2015-02-15 | 2015-02-15 | Expansion locking device and there is the flexible rod of this device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520113358.5U CN204533095U (en) | 2015-02-15 | 2015-02-15 | Expansion locking device and there is the flexible rod of this device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204533095U true CN204533095U (en) | 2015-08-05 |
Family
ID=53747104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520113358.5U Expired - Fee Related CN204533095U (en) | 2015-02-15 | 2015-02-15 | Expansion locking device and there is the flexible rod of this device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204533095U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653561A (en) * | 2015-02-15 | 2015-05-27 | 张雪峰 | Retractable locking device and retractable rod with retractable locking device |
-
2015
- 2015-02-15 CN CN201520113358.5U patent/CN204533095U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653561A (en) * | 2015-02-15 | 2015-05-27 | 张雪峰 | Retractable locking device and retractable rod with retractable locking device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204533095U (en) | Expansion locking device and there is the flexible rod of this device | |
| CN105215112A (en) | A kind of ball-and-socket joint plug with interchangeability | |
| CN105332980A (en) | Convex-concave engaging type telescopic positioning device | |
| CN104653561A (en) | Retractable locking device and retractable rod with retractable locking device | |
| CN204552143U (en) | Sloping core bracing or strutting arrangement for building | |
| CN202348868U (en) | Foot pipes locking device | |
| CN204784014U (en) | An expansion link | |
| CN205136269U (en) | Flexible pipe retainer | |
| CN204113832U (en) | A kind of pin pipe telescopic locking structure | |
| CN203314467U (en) | Adjustable leg of cabinet | |
| TW201443380A (en) | Heat pipe structure with effect of limiting powder sintering region and its manufacturing method thereof | |
| CN204140576U (en) | A kind of Novel foot pipe shrinking structure | |
| DK201771029A1 (en) | A method for interconnecting flashing members and a flashing element with a seam | |
| CN103502531A (en) | Turbulence bar assembly | |
| CN105755690A (en) | Replaceable sewing machine | |
| CN206205825U (en) | A kind of inflatable petroleum drilling and mining expansion tube centralizer | |
| CN205371210U (en) | Plastic dowel sleeve | |
| CN104550359B (en) | A kind of adjustable iron pipe bending apparatus | |
| CN206404736U (en) | A kind of granulator ring mode structure | |
| CN205991051U (en) | Hydraulic cylinder based on stud connection structure | |
| CN104110419A (en) | Storage rack mounting and locking device for lifting rod | |
| CN203847508U (en) | Pipe-in-pipe type fixing pipe base | |
| CN204503875U (en) | The swan neck system of adjustable flexibility | |
| CN202791208U (en) | Detachable type foot stand device | |
| JP5944182B2 (en) | Method for manufacturing hollow cylindrical ring member and hollow cylindrical ring member |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 Termination date: 20180215 |