CN201027735Y - Telescope tube connector - Google Patents
Telescope tube connector Download PDFInfo
- Publication number
- CN201027735Y CN201027735Y CNU2007200673149U CN200720067314U CN201027735Y CN 201027735 Y CN201027735 Y CN 201027735Y CN U2007200673149 U CNU2007200673149 U CN U2007200673149U CN 200720067314 U CN200720067314 U CN 200720067314U CN 201027735 Y CN201027735 Y CN 201027735Y
- Authority
- CN
- China
- Prior art keywords
- hole
- link
- locating stud
- telescopic tube
- tube
- 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 - Lifetime
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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model relates to a connecting piece of telescopic sleeve, comprising an outer pipe end and an inner pipe end; the inner pipe end is provided inside with a first through hole; the outer pipe end is provided inside with a second through hole which is coaxial and communicated with the first through hole; the end of an outer pipe can be fixed inside the second through hole; an inner pipe passes through the first through hole and extends into the outer pipe; a fixed end is arranged vertically to the inner pipe end; the fixed end is provided inside with a third through hole which is communicated with the first through hole; the third through hole is provided inside with a positioning pin; the length of the positioning pin is longer than the length of the third through hole; the outer wall of the fixed end is provided with an outer screw thread which is spirally provided with a nut with closed ends. The connecting piece of the telescopic sleeve of the utility model can conveniently and flexibly realize the telescopic fixing of round pipes, is applicable for the needs of daily life and production, and has beautiful and elegant appearance.
Description
Technical field
The utility model relates to link, particularly a kind of link that is used for telescopic tube.
Background technique
On daily life or industrial production, usually need that pipe fitting is combined into special body with link and realize telescopic purpose, with different lives or the production needs that satisfy such as interior overcoat system.The pipe fitting that has need vertically dock up afterwards scalable with the either large or small pipe fitting of other diameter, what have need laterally dock with other pipe fitting, needs sometimes different pipe fittings are combined into T-shaped or cross shape and other shape but an end requirement can be capable of expansion and contraction.Need special link in this case and each pipe fitting is combined into the body that needs.
Existing technical design to link has varied.Wherein, a kind of structure commonly used is to utilize on the link wall to wear positioning hole, also is installed with positioning hole on the wall of interior pipe fitting, positions with a barpin or screw by two positioning hole alignment backs.
Have following problems in the prior art: complex structure is not suitable for simple mechanism such as occasions such as Simple wardrobe, simple and easy clothes hangers; Complex operation adopts under the situation that pin or screw fix, and losing of pin or screw taken place easily, is difficult to dismantle in conjunction with too closely the time; Scalability is poor, is difficult to freely realize in the time of fixing stretching again later etc.
The model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of link of the telescopic tube that is suitable for daily life and produce uses is provided, it be on the link wall, install one can turn nut, realize unclamping of internal pipe and fixing by degree of tightness.The utility model is simple in structure, and operation is convenient, is highly suitable for being connected of all kinds of telescopic tubes in daily life and the production field.
Creativeness of the present utility model derives from common mechanics principle, be utilize frictional force between link and the inner and outer pipes realize to internal and external casing fixing neatly with unclamp.
The technical solution of the utility model:
A kind of link of telescopic tube, comprise outer tunnel end and inner tube, have first through hole in this inner tube, have second through hole coaxial with first through hole and that be communicated with in the outer tunnel end, this second through hole internal fixation has the end of an outer tube, one interior pipe passes described first through hole and extends in the described outer tube, and like this, interior pipe and outer tube constitute a sleeve pipe that can freely stretch.
On this sleeve pipe, also be provided with a fixed end perpendicular to described inner tube, in this fixed end, have the third through-hole that is communicated with first through hole, be provided with a locating stud in this third through-hole, the length of this locating stud is greater than the length of third through-hole, on the outer wall of described fixed end outside thread is arranged, be rotary with the nut of an end sealing on this outside thread, this nut inner end is pushed down the upper end of described locating stud.Utilize the thinking of traditional locating stud, the nut that can push down locating stud is set, the rotation by nut realizes compressing of locating stud and unclamps.When needing the interior pipe of telescopic tube, the nut of outwarding winding, the locating stud that the bottom props up inner tubal wall reduces to unclamp because of its top pressure, stretch this moment or advance in pipe, the frictional force of inner tubal wall and locating stud bottom reduces gradually, interior pipe and outer tube can freely stretch.Otherwise, when needs with interior pipe and outer tube fixedly the time, screw nut, this nut is given the pressure in locating stud top, the power that the locating stud bottom is added on the outer wall of inner tube increases, frictional force in corresponding between pipe and the locating stud also increases, when frictional force greater than manage being added in and outer tube between stretching or propelling force the time, interior pipe and outer tube connected piece are fixed.
Described outer tunnel end and inner tube are connected to become the Cylindrical object that an external diameter equates.Outer tunnel end equates with the inner tube external diameter to constitute a Cylindrical object, provides convenience to making this link, also is convenient to take in the middle of operating process at ordinary times hold application.The outer wall of described Cylindrical object is provided with strip groove or pitting or strip projection or granular projection.These projections or groove have increased the frictional force of taking when holding this link, also play effect attractive in appearance simultaneously.
Pipe is for circular in described.Internal and external casing can have any shape in the utility model, circular, square, rhombus and other irregular shape, and key is that interior pipe can be enclosed within the outer pipe orifice.
The bottom of described locating stud be and described in the corresponding arc groove of external diameter of pipe, the bottom of locating stud is identical with the outer wall shape of interior pipe, purpose is to increase the area of contact of locating stud and outer wall of inner tube, increases the frictional force between the two when compressing.
The top of described locating stud is provided with the boss of an external diameter greater than described third through-hole internal diameter.Setting a boss is to prevent from can hang in to first through hole of link inner tube when this locating stud from not contacting with interior pipe in the bottom, perhaps stretches in first through hole oversize and interior pipe box can't be gone into to this first through hole.
Technique effect of the present utility model:
The utility model has been installed rotatable nut on the link wall, the combination that can realize pipe and link easily and flexibly with separate, be fit to the needs of daily life and production.
Having a plurality of pipe fittings to be combined into the occasion of complex object, the link of the telescopic tube in the utility model can length as required carry out the fixing or lax of interior pipe and outer tube, and the realization of simple and fast is the structure of capable body fast; The part that outstanding inwall is arranged after nut of the present utility model screws increases the combination more firmly that frictional force realizes internal pipe by compressing locating stud.
Figure of description
Fig. 1 is the structural representation of the link of a kind of telescopic tube of the utility model.
Fig. 2 is the sectional view of the link of a kind of telescopic tube of the utility model.
Fig. 3 does not screw the schematic representation of state at nut for the locating stud in the link of a kind of telescopic tube of the utility model.
Fig. 4 screws the schematic representation of state at nut for the locating stud in the link of a kind of telescopic tube of the utility model.
Fig. 5 is the structural representation of locating stud of the link of a kind of telescopic tube of the utility model.
Embodiment
Come the utility model is described further below in conjunction with accompanying drawing and specific embodiment, but can not limit protection domain of the present utility model with this.
Please see Figure 1 and Fig. 2, Fig. 1 is the structural representation of the link of a kind of telescopic tube of the utility model.Fig. 2 is the sectional view of the link of a kind of telescopic tube of the utility model.As seen from the figure, the link of telescopic tube of the present utility model, comprise outer tunnel end 21 and inner tube 22, have first through hole 25 in this inner tube 22, have second through hole 26 coaxial with first through hole 24 and that be communicated with in the outer tunnel end 21, these second through hole, 26 internal fixation have the end of an outer tube 1, and an interior pipe 3 passes described first through hole 26 and extends in the described outer tube 1.On this link, also be provided with a fixed end 23 perpendicular to described inner tube 22, outside thread 231 is arranged on the outer wall of described fixed end 23, be rotary with the nut 4 of an end sealing on this outside thread 231, in this fixed end 23, have the third through-hole 27 that is communicated with first through hole 25.
Please see Figure 4 again, Fig. 4 screws the schematic representation of state at nut for the locating stud in the link of a kind of telescopic tube of the utility model.As seen from Figure 4, be provided with a locating stud 5 in the third through-hole 27 on the link of the utility model telescopic tube in the fixed end 23, the length of this locating stud 5 is greater than the length of third through-hole 27.
Be that the stainless steel sleeve pipe of circle is that example is told about concrete enforcement of the present utility model with interior pipe 3 and outer tube 1 below.
Link is plastic article in the present embodiment, outer tube 1 is fixed in the internal thread of second through hole 26 in the link 2 upper exterior tube ends 21 by the outside thread of end, and the internal diameter of this outer tube 1 equals the internal diameter of first through hole 25, and then first through hole 25 forms the inner chamber with diameter with the internal holes of outer tube 1.
The outer tunnel end 21 of link 2 and inner tube 22 are connected to become the cylinder that an external diameter equates.The outer wall of cylinder is provided with strip groove, and this strip groove plays the increase rubbing action when being dynamically connected part taking, and makes link seem create an aesthetic feeling.
Be placed into locating stud 5 in the third through-hole 27 in the fixed end 23 of link 2, this locating stud 5 is the cylindrical body of length greater than third through-hole 27 length, the bottom of locating stud 5 is and the identical arc groove of interior pipe 3 external diameters that the top is provided with the boss 51 of an external diameter greater than described third through-hole (27) internal diameter.
When this locating stud 5 was positioned in the third through-hole 27, boss 51 was butted on the tip edge of fixed end 23, made this locating stud 5 can not see through third through-hole 27 and entered fully in first through hole 25.
Outside thread 231 is arranged on the outer wall of positioning end 23, be rotary with the nut 4 of an end sealing on this outside thread 231, the end of this nut 4 is pressed on the boss 51 of locating stud 5.
Alignment pin position schematic representation when Fig. 3 and Fig. 4 unclamp with impaction state for the link of telescopic tube of the present utility model, Fig. 3 do not screw the schematic representation of state at nut for the locating stud in the link of a kind of telescopic tube of the utility model.Fig. 4 screws the schematic representation of state at nut for the locating stud in the link of a kind of telescopic tube of the utility model.
State freely stretches:
Unscrew nut 4, the pressure that makes this nut 4 compress locating stud 5 reduces, then the bottom of locating stud 5 closes in the third through-hole 27, it is unobstructed accessible to form internal chamber wall by first through hole 25 and outer tube 1 endoporus, interior pipe 3 can pass this inner chamber and directly stretch in the outer pipe orifice, and can regulate this internal and external casing to needed length according to actual conditions.
State is tightened:
Screw nut 4, the pressure that the closed end of this nut 4 presses on locating stud 5 increases, and the bottom arc groove of this locating stud 5 is contacted with on the outer wall of interior pipe 3.The power that screws that adds big nut 4 gradually, the bottom of this locating stud 5 slightly protrudes in the inwall of first through hole 25, then the pressure between locating stud 5 and the interior pipe 3 also increases, pipe 3 also increased with locating stud 5 frictional force in the increase of this pressure made, during elasticity, outer tube 1, interior pipe 3 and link 2 form a fixing integral body between frictional force increases to greater than interior pipe 3 and outer tube 1.
Undoubtedly, the link of telescopic tube of the present utility model also has other shape and conversion, not only is confined to shape cited in the specific embodiment and Placement.In a word, protection domain of the present utility model also comprises conspicuous for those skilled in the art conversion.
Claims (7)
1. the link of a telescopic tube, comprise outer tunnel end (21) and inner tube (22), have first through hole (25) in this inner tube (22), have second through hole (26) coaxial with first through hole (24) and that be communicated with in the outer tunnel end (21), this second through hole (26) internal fixation has the end of an outer tube (1), one interior pipe (3) passes described first through hole (26) and extends in the described outer tube (1), it is characterized in that also being provided with a fixed end perpendicular to described inner tube (22) (23), in this fixed end (23), have the third through-hole (27) that is communicated with first through hole (25), be provided with a locating stud (5) in this third through-hole (27), the length of this locating stud (5) is greater than the length of third through-hole (27), outside thread (231) is arranged on the outer wall of described fixed end (23), be rotary with the nut (4) of an end sealing on this outside thread (231).
2. the link of telescopic tube according to claim 1 is characterized in that described outer tunnel end (21) and inner tube (22) are connected to become the cylinder that an external diameter equates.
3. the link of telescopic tube according to claim 2 is characterized in that the outer wall of described cylinder is provided with strip groove or pitting or strip projection or granular projection.
4. the link of telescopic tube according to claim 1 is characterized in that described interior pipe (3) is for circular.
5. the link of telescopic tube according to claim 4, the bottom that it is characterized in that described locating stud (5) for and described in the corresponding arc groove of external diameter (52) of pipe (3).
6. the link of telescopic tube according to claim 4 is characterized in that the top of described locating stud (5) is provided with the boss (51) of an external diameter greater than described third through-hole (27) internal diameter.
7. the link of telescopic tube according to claim 1 is characterized in that described outer tube (1) is connected by internal and external screw thread with second through hole (26) or fixes by Bond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200673149U CN201027735Y (en) | 2007-02-13 | 2007-02-13 | Telescope tube connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200673149U CN201027735Y (en) | 2007-02-13 | 2007-02-13 | Telescope tube connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201027735Y true CN201027735Y (en) | 2008-02-27 |
Family
ID=39131943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200673149U Expired - Lifetime CN201027735Y (en) | 2007-02-13 | 2007-02-13 | Telescope tube connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201027735Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256281A (en) * | 2013-05-13 | 2013-08-21 | 西安博奇实业有限公司 | Steel tube axial positioner |
-
2007
- 2007-02-13 CN CNU2007200673149U patent/CN201027735Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256281A (en) * | 2013-05-13 | 2013-08-21 | 西安博奇实业有限公司 | Steel tube axial positioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080227 |
|
| CX01 | Expiry of patent term |