CN201288728Y - Damping extension tube - Google Patents
Damping extension tube Download PDFInfo
- Publication number
- CN201288728Y CN201288728Y CNU2008201459005U CN200820145900U CN201288728Y CN 201288728 Y CN201288728 Y CN 201288728Y CN U2008201459005 U CNU2008201459005 U CN U2008201459005U CN 200820145900 U CN200820145900 U CN 200820145900U CN 201288728 Y CN201288728 Y CN 201288728Y
- Authority
- CN
- China
- Prior art keywords
- diameter tubing
- pipe
- piston
- tube
- major diameter
- 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
- 238000013016 damping Methods 0.000 title claims abstract description 17
- 239000004033 plastic Substances 0.000 claims abstract description 38
- 229920003023 plastic Polymers 0.000 claims abstract description 38
- 239000002184 metal Substances 0.000 claims abstract description 15
- 239000004568 cement Substances 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 4
- 230000009471 action Effects 0.000 abstract description 3
- 230000008859 change Effects 0.000 abstract description 2
- 238000005452 bending Methods 0.000 abstract 1
- 230000007246 mechanism Effects 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Images
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model is a damping telescoping tube, relates to a metal tube which is sleeved by at least two sections of metal tube with different diameters, and can change total length by telescoping action of the small diameter tube. The damping telescoping tube is provides with at least two sections of metal tube with different diameters, in the adjacent two sections tubes, one end of small-diameter tube is sleeved in a retracted orifice on a reverse end of the large-diameter tube, the end of the small-diameter tube positioned in the large-diameter tube is arranged with a plastic piston contacting with the inner wall of the large-diameter tube, the other end of small-diameter tube positioned in the large-diameter tube is arranged with a plastic tube contacting with the inner wall of the large-diameter tube, and the plastic tube is supported between the inner end of the small-diameter tube and the inner wall of the large-diameter tube to form a compactly contact structure, so as to improve the whole anti-bending intensity when the adjacent two sections tubes are extended.
Description
Technical field
The metal pipe that the utility model relates to a kind of at least two joint different tube diameters is sleeved on together, can change the metal tube of total length by the expanding-contracting action of minor diameter tubing.
Background technique
In the products such as teacher's pointer that the writing pen and the culture and education department of the antenna of various electronic equipments, touch screen uses, be extensive use of metal expansion pipe.Existing metal expansion pipe has the metal pipe of at least two joint different tube diameters, and in the wherein adjacent 2-section pipe material: an end of minor diameter tubing is sleeved in the major diameter tubing, between minor diameter tubing and the major diameter tubing position-limit mechanism is set; The metal spring sheet is set between the inwall of the outer wall of minor diameter tubing and major diameter tubing.During use, the relative major diameter tubing of minor diameter tubing is pulled out or pushed, overall length is increased or shortening; Spring sheet plays damping function to the telescopic slide of minor diameter tubing, and position-limit mechanism provides constraints to the flexible amplitude of minor diameter tubing.Because the radial dimension of tubing and the size of spring sheet there are differences, there is following shortcoming in this telescopic pipe: 1, the bad control of feel of tightness when the relative major diameter tubing of minor diameter tubing is pulled out or pushed, the quality instability is difficult to the quality conformance that the back product is assembled in control.2, when the relative major diameter tubing of minor diameter tubing is pulled out or is pushed, spring sheet and the unavoidable problem of sending metal and the different sound of metal friction that produces of the mutual friction mutually of tubing.For addressing the above problem, the end that the inventor proposes minor diameter tubing is sleeved in the mouth of pipe that contracts in the major diameter tubing backward end, and the termination that is positioned at major diameter tubing at minor diameter tubing is provided with a plastic cement piston that contacts with major diameter tubing inwall.After adopting this structure, the plastic cement piston plays damping function to the telescopic slide of minor diameter tubing, not only do not rubbed different sound and piston elasticity but also can offset the difference of tubing radial dimension, good hand touch, steady quality when the relative major diameter tubing of minor diameter tubing is pulled out or pushed.Simultaneously the mouth of pipe that contracts in plastic cement piston and the major diameter tubing matches the position-limit mechanism that formation minor diameter tubing is pulled outwardly out.But in order to guarantee after adjacent 2-section pipe material stretches enough bend resistance intensity is arranged, the piston shaft that need make for plastic cement cylinder configuration metallic material.And the manufacture cost of the piston shaft that metallic material is made own is difficult for lowering, and can influence the cost of whole metal expansion pipe.
The model utility content
The utility model aims to provide a kind of damping telescopic pipe, and wherein adjacent 2-section pipe material stretches the piston shaft that back bend resistance intensity is high and need not use metallic material to make.
The technical solution of the utility model is: a kind of damping telescopic pipe, metal pipe with at least two joint different tube diameters, in the wherein adjacent 2-section pipe material: an end of minor diameter tubing is sleeved in the mouth of pipe that contracts in the major diameter tubing backward end, and the termination that minor diameter tubing is positioned at major diameter tubing is provided with a plastic cement piston that contacts with major diameter tubing inwall; That end periphery that minor diameter tubing is positioned at major diameter tubing is provided with a plastic cement pipe that contacts with major diameter tubing inwall.
In a kind of structure of optimization: described piston comprises the piston ring that piston shaft that a rigidity plastics makes and at least one elastomeric plastics or rubber are made; Piston ring set is contained in an end of piston shaft, and the outer circumferential face of piston ring contacts with major diameter tubing inwall; The other end of piston shaft is inserted and secured on minor diameter tubing and stretches in the interior termination of major diameter tubing.
Particularly: described piston shaft is " doing " font solid of rotation, and a piston ring set is contained between two flat arms of stretching of piston shaft.
In the embodiment who optimizes: have gas guide groove on the outer circumferential face of described piston ring.
The utility model damping telescopic pipe utilizes the plastic cement piston that the telescopic slide of minor diameter tubing is played damping function; That end periphery that is positioned at major diameter tubing at minor diameter tubing is provided with a plastic cement pipe that contacts with major diameter tubing inwall again, be supported between minor diameter tubing the inner and the major diameter tubing inwall by the plastic cement pipe, constitute tight contacting structure, stretch the whole bend resistance intensity in back thereby improved adjacent 2-section pipe material.The piston shaft that piston is made by a rigidity plastics and form by the piston ring that elastomeric plastics or rubber are made; Cheap.Particularly piston shaft is " doing " font solid of rotation, and a piston ring set is contained between two flat arms of stretching of piston shaft, and this piston can adopt the injection moulding of injection mould mold insert, and cost is low, does not need too many manpower, automaticity height during assembling.Have gas guide groove on the outer circumferential face of piston ring, gas inside can flow in time when making adjacent 2-section pipe material stretching or compression, and can not hinder piston is moving of minor diameter tubing.So the utility model damping telescopic pipe have bend resistance intensity height, cost low, simple in structure, be convenient to the advantage of processing and using.
Description of drawings
Fig. 1 is an embodiment's of the utility model damping telescopic pipe a cross-sectional view.
Fig. 1-1 is the local enlarged diagram of Fig. 1 embodiment A portion.
Fig. 2 is the perspective view of Fig. 1 embodiment piston shaft.
Fig. 3 is the perspective view of Fig. 1 embodiment plastic cement pipe.
Fig. 4 is Fig. 1 embodiment structure of piston schematic representation.
Fig. 5 is the perspective view of Fig. 1 embodiment piston.
Fig. 6 has installed the perspective view of the piston shaft behind the piston for Fig. 1 embodiment.
Fig. 7 is the structural representation of Fig. 1 embodiment in compressive state.
Fig. 8 is the structural representation of Fig. 1 embodiment at extended configuration.
Embodiment
An optimization embodiment of the utility model damping telescopic pipe is two joint writing pens that are used for the electronic equipment touch screen, and its cross-section structure as shown in Figure 1.It comprises metal pipe---the outer tube 1 and the less interior pipe 4 of diameter that diameter is bigger of two joint different tube diameters, and nib 2, the cap for brush 3, piston shaft 5, plastic cement pipe 6, piston ring 7.
The lower end 11 of outer tube 1 is opened wide.Please referring to Fig. 1-1: there is the inward flange 13 that inwardly shrinks together the upper end 12 of outer tube 1, and the mouth of pipe of this inward flange 13 is slidingly matched for 4 one-tenth with interior pipe.
The cap for brush 3 is made by rigidity plastics.The diameter of the diameter of the cap for brush 3 and outer tube 1 is suitable; Its lower end has an endoporus 31 with 4 one-tenth stationary fits of interior pipe.
The termination of the lower end 41 of interior pipe 4 is provided with a plastic cement piston.This plastic cement piston is made up of piston shaft 5 and piston ring 7.
Please referring to Fig. 2, piston shaft 5 is that a rigidity plastics is made " doing " font solid of rotation, and an end of its main shaft is provided with two annular flange flange 51,52, constitutes two flat arms of stretching; Between these two flanges 51,52, be provided with the little flange 53 that is lower than them together.
Please referring to Fig. 4 and Fig. 5, piston ring 7 usefulness elastomeric plastics or rubber are made.The main body of piston ring 7 is pipes, establishes annular flange flange 71 at the middle part of this pipe periphery, and establishes twice gas guide groove 72 this flange 71 is divided into two sections.It is corresponding with the little flange 53 of piston shaft 5 that the middle part of the endoporus 73 of piston ring 7 has one inner groove 74.
Piston in the present embodiment adopts the injection moulding of injection mould mold insert to make, being about to Manufactured piston ring 7 is placed in the mould, inject rigidity plastics and form piston shaft 5, two flat arms of stretching that make piston ring 7 be sleeved on piston shaft 5 once are between two annular flange flange 51,52, as shown in Figure 6.
The shape of plastic cement pipe 6 as shown in Figure 3, plastic cement pipe 6 is pipes that an elastomeric plastics or rubber are made.
During assembling, manage on the outer circumferential face of 4 lower ends 41 in earlier plastic cement pipe 6 being sleeved on.The main shaft of piston shaft 5 is inserted and secured in the lower end 41 of interior pipe 4.Insert in the outer tube 1 upper end 42 of pipe 4 in making, and pass from the mouth of pipe of outer tube 1 upper end 12 inward flanges 13, upwards draws.Plastic cement pipe 6 closely contacts with outer tube 1 inwall.Piston ring 7 outer circumferential faces of interior pipe 4 lower ends 41 closely contact with the inwall of outer tube 1.Continue the upwards piston ring 7 of the interior pipe of pushing tow 4 lower ends 41, the inward flange 13 until outer tube 1 upper end 12 stops that plastic cement pipe 6 and the piston shaft 5 flat arms of stretching are flange 51, and pipe 4 is in the extremely state of stretching in making, and the lower end 41 of interior pipe 4 always remains in the outer tube 1.
At last, make nib 2 conical head 21 be positioned at the below of outer tube 1 lower end 11, with the cylindrical tail portion 22 of nib 2 upwards plug-in card be fixed in the lower end 11 of outer tube 1.And insert in the endoporus 31 of lower end of the caps for brush 3 pipe 4 upper end 42 in making.The present embodiment assembling finishes.
Arrest outer tube 1, push away the cap for brush 3 downwards, in the interior pipe 4 retraction outer tubes 1.Present embodiment shortens, as shown in Figure 7.
Arrest outer tube 1, upwards draw the cap for brush 3, interior pipe 4 is protruding from outer tube 1.The present embodiment elongation, as shown in Figure 8.
Owing between the inwall of the lower end 41 of pipe 4 and outer tube 1, form tight contacting structure in plastic cement pipe 6 is sleeved on, stretch the whole bend resistance intensity in back with outer tube 1 thereby improved interior pipe 4.
Have gas guide groove 72 on the outer circumferential face of piston ring 7, make that gas inside can flow in time when adjacent interior pipe 4 and outer tube 1 were done stretching or compressed action, can not hinder i.e. the moving of interior pipe 4 of piston.
Obviously, in the present embodiment in the pipe 4 and outer tube 1 between: an end of minor diameter tubing is sleeved in the mouth of pipe that contracts in the major diameter tubing backward end, the termination that minor diameter tubing is positioned at major diameter tubing is provided with a plastic cement piston that contacts with major diameter tubing inwall, and that end periphery that minor diameter tubing is positioned at major diameter tubing is provided with the linkage structure that a plastic cement pipe contacts with major diameter tubing inwall; Also be suitable for the flexible connection of the tubing of many different tube diameters, just repeated no more here.
The above only is the utility model preferred embodiment, yet does not limit the scope that the utility model is implemented with this, and the equivalence of doing according to the technical solution of the utility model and description changes and modification, all should belong to the scope that the utility model is contained.
Claims (4)
1. damping telescopic pipe, metal pipe with at least two joint different tube diameters, in the wherein adjacent 2-section pipe material: an end of minor diameter tubing is sleeved in the mouth of pipe that contracts in the major diameter tubing backward end, and the termination that minor diameter tubing is positioned at major diameter tubing is provided with a plastic cement piston that contacts with major diameter tubing inwall; It is characterized in that: that end periphery that minor diameter tubing is positioned at major diameter tubing is provided with a plastic cement pipe that contacts with major diameter tubing inwall.
2. a kind of damping telescopic pipe according to claim 1 is characterized in that: described piston comprises the piston ring that piston shaft that a rigidity plastics makes and at least one elastomeric plastics or rubber are made; Piston ring set is contained in an end of piston shaft, and the outer circumferential face of piston ring contacts with major diameter tubing inwall; The other end of piston shaft is inserted and secured on minor diameter tubing and stretches in the interior termination of major diameter tubing.
3. a kind of damping telescopic pipe according to claim 2 is characterized in that: described piston shaft is " doing " font solid of rotation, and a piston ring set is contained between two flat arms of stretching of piston shaft.
4. according to claim 2 or 3 described a kind of damping telescopic pipes, it is characterized in that: have gas guide groove on the outer circumferential face of described piston ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201459005U CN201288728Y (en) | 2008-10-16 | 2008-10-16 | Damping extension tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201459005U CN201288728Y (en) | 2008-10-16 | 2008-10-16 | Damping extension tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201288728Y true CN201288728Y (en) | 2009-08-12 |
Family
ID=40980410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201459005U Expired - Fee Related CN201288728Y (en) | 2008-10-16 | 2008-10-16 | Damping extension tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201288728Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108151583A (en) * | 2017-06-06 | 2018-06-12 | 上海飞米工业设计有限公司 | The adjustable support foot damped for the band of shotgun |
| CN108286915A (en) * | 2017-06-06 | 2018-07-17 | 上海飞米工业设计有限公司 | The three section retractable support feet that band for shotgun damps |
| CN111764737A (en) * | 2020-07-29 | 2020-10-13 | 浙江慧冠休闲用品有限公司 | Anti-collision telescopic columns and tents for tents |
| CN115324993A (en) * | 2022-08-18 | 2022-11-11 | 杭州长荣电子科技有限公司 | Telescopic rod with integrated deformation damping positioning structure and production process thereof |
-
2008
- 2008-10-16 CN CNU2008201459005U patent/CN201288728Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108151583A (en) * | 2017-06-06 | 2018-06-12 | 上海飞米工业设计有限公司 | The adjustable support foot damped for the band of shotgun |
| CN108286915A (en) * | 2017-06-06 | 2018-07-17 | 上海飞米工业设计有限公司 | The three section retractable support feet that band for shotgun damps |
| CN111764737A (en) * | 2020-07-29 | 2020-10-13 | 浙江慧冠休闲用品有限公司 | Anti-collision telescopic columns and tents for tents |
| CN115324993A (en) * | 2022-08-18 | 2022-11-11 | 杭州长荣电子科技有限公司 | Telescopic rod with integrated deformation damping positioning structure and production process thereof |
| CN115324993B (en) * | 2022-08-18 | 2024-06-25 | 杭州长荣电子科技有限公司 | Telescopic rod with integrated deformation damping positioning structure and production process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Harda Xiamen Plastic Co., Ltd. Assignor: Mao Lianhua Contract fulfillment period: 2009.10.27 to 2014.10.27 Contract record no.: 2009351000072 Denomination of utility model: Damping extension tube Granted publication date: 20090812 License type: Exclusive license Record date: 20091030 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.10.27 TO 2014.10.27; CHANGE OF CONTRACT Name of requester: HUAERDA( XIAMEN )PLASTICS CO., LTD. Effective date: 20091030 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090812 Termination date: 20151016 |
|
| EXPY | Termination of patent right or utility model |