CN109424607A - Retractable rod structure - Google Patents
Retractable rod structure Download PDFInfo
- Publication number
- CN109424607A CN109424607A CN201710728534.XA CN201710728534A CN109424607A CN 109424607 A CN109424607 A CN 109424607A CN 201710728534 A CN201710728534 A CN 201710728534A CN 109424607 A CN109424607 A CN 109424607A
- Authority
- CN
- China
- Prior art keywords
- pipe fitting
- rolling member
- rod structure
- retractable rod
- block
- 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.)
- Granted
Links
- 238000005096 rolling process Methods 0.000 claims abstract description 56
- 238000006073 displacement reaction Methods 0.000 claims abstract description 15
- 238000009434 installation Methods 0.000 claims description 4
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 241001149930 Protura <class> Species 0.000 claims 1
- 229920001971 elastomer Polymers 0.000 claims 1
- 239000000806 elastomer Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 9
- 238000005299 abrasion Methods 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000013011 mating Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/10—Telescoping systems
- F16B7/14—Telescoping systems locking in intermediate non-discrete positions
Abstract
The present invention provides a kind of retractable rod structure, concatenates one second pipe fitting comprising one first pipe fitting.The axial direction of first pipe fitting has a holding channel；Second pipe fitting is movably embedded in the holding channel of first pipe fitting；One rolling member is pivotally disposed between first pipe fitting and second pipe fitting；The rolling member contacts the inner wall of the holding channel or the outer surface of second pipe fitting；Second pipe fitting generates relative displacement to first pipe fitting, which provides rolling friction to first pipe fitting or second pipe fitting.The present invention, which can have, operates effect more laborsaving and that lifting displacement is more stable, and being also equipped with reduces the effect that each component generates abrasion situation.
Description
Technical field
The present invention relates to a kind of bar assemblies, can be applied to the desk with liftable (flexible), chair more particularly to one kind
The retractable rod structure of sub or other similar device.
Background technique
General desk, desk or computer desk have scheduled height.User, which is sitting on chair, to read, book
Write and operate computer.However user is sitting on chair for a long time, muscle and bone lack stretching, extension, are easy to produce fatigue.
Has the same table of adjustable desktop height at present.Its connection mainly to be embedded in an outer tube by an inner tube
Form constitutes a liftable feet.User can adjust the relative position between two pipe fittings voluntarily to reach adjustment desktop height
Purpose.In addition, chair can also use same structure type to have the function of adjustment height.
It, can be respectively in one pipe of the end of outer tube and inner tube mating in order to reduce the rubbing action between the outer tube of concatenation and inner tube
Block, wherein the outer surface for the plumber block contact inner tube being located on outer tube；Positioned at the inner surface of the pipe contact outer tube of inner tube.Pass through plumber block
Material be different from the material of inner tube and outer tube, allow the surface of inner tube and outer tube to reduce abrasion situation；However inner tube pair
Outer tube generates relative displacement, effect of the plumber block by sliding friction, therefore plumber block is prone to wear.The plumber block of abrasion, which can not be stablized, to be connect
Outer tube and inner tube are touched, so inner tube can generate shaking with respect to outer tube.
Another solution is to be equipped with fin in the inner surface of outer tube or the outer surface of inner tube.So one pipe fitting is convex
Rib is contacted with the surface of another pipe fitting, can be smaller because of contact area, can reduce frictional force.However this kind of structure type
Still it is sliding friction, there is apparent abrasion between each component.
Summary of the invention
The present invention forms a bar assembly by least two pipe fittings.When relatively another pipe fitting of one pipe fitting generates relative displacement, two
Contact condition between pipe fitting is rolling friction, to overcome the contact condition of existing two pipe fittings relative displacement to be deposited by sliding friction
The shortcomings that.
The purpose of the present invention is to provide a kind of retractable rod structures, operate more laborsaving and liter with that can reach
Demotion moves more stable effect.
Another object of the present invention is to provide a kind of retractable rod structure, having can be generated with reducing each component
The effect of abrasion situation.
To achieve the above object, the invention adopts the following technical scheme:
A kind of retractable rod structure concatenates one second pipe fitting comprising one first pipe fitting.The axial direction of first pipe fitting has
One holding channel；Second pipe fitting is movably embedded in the holding channel of first pipe fitting；One rolling member is rotationally matched
It sets between first pipe fitting and second pipe fitting；The rolling member at least contacts the inner wall or second pipe fitting of the holding channel
Outer surface；Second pipe fitting generates relative displacement to first pipe fitting, which mentions first pipe fitting or second pipe fitting
For rolling friction.
The retractable rod structure also includes a pipe sleeve, and the rolling member is rotatably mounted on the pipe sleeve, pipe sleeve peace
Mounted in the one end of first pipe fitting, second pipe fitting passes through the pipe sleeve, and the rolling member contacts second pipe fitting
Outer surface.
The retractable rod structure also includes a plumber block, and the rolling member is rotatably mounted on the plumber block, plumber block peace
Mounted in the one end of second pipe fitting, the rolling member contacts the inner wall of first pipe fitting.
The retractable rod structure also includes an adjustment part, and the plumber block has an expanded bore, and the adjustment part is to match
It is connected to the expanded bore, which has a conical surface portion, which has a cone head part, and the cone head part is with respect to the conical surface portion
Position, the inner wall that the outer diameter that can be used to adjust the plumber block expands outwardly and the rolling member is made to contact first pipe fitting
Face.
The outer surface of the plumber block has plural fine crack, is an elastic block portion between the adjacent fine crack of the two of the plumber block, described
Adjustment part lock fits over the position in the expanded bore to be made described in the rolling member contact to push the elasticity block portion to be displaced outwardly
The inner wall of first pipe fitting.
One end face of the cone head part of the adjustment part has a driving configuration, which is configured to accept a torsion to adjust
The position of the whole relatively described expanded bore of the adjustment part.
The driving is configured as a shrinkage pool or a convex block.
The plumber block includes an embedded division and a mounting portion, and the outer diameter of the embedded division is less than the outer diameter of the mounting portion, this is embedding
Enter axial inner of the portion to be embedded in second pipe fitting, the rolling member is mounted on the mounting portion, and mounting portion protrusion exists
Outside the end of second pipe fitting, the rolling member contacts the inner wall of first pipe fitting.
The outer surface of the mounting portion has plural fine crack, is an elastic block portion between two adjacent fine cracks, the rolling member
Both ends are separately mounted to the elastic block portion of adjacent two, and elastic block portion, which is forced outwards displacement, can make the rolling member contact described first
The inner wall of pipe fitting.
The surface of the plumber block includes an interval annular groove, and the spacer ring slot position is between the embedded division and mounting portion.
The invention has the advantages that
Retractable rod structure of the invention, operation is more laborsaving, and lifting displacement is more stable, and can reduce each component
Abrasion situation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of first embodiment of the invention.
Fig. 2 is the adjustment high-level schematic of first embodiment of the invention.
Fig. 3 is the structural schematic diagram of second embodiment of the invention.
Fig. 4 is the adjustment high-level schematic of second embodiment of the invention.
Fig. 5 is the outside drawing of third embodiment of the invention.
Fig. 6 is the structural schematic diagram of third embodiment of the invention.
Fig. 7 is the outside drawing of fourth embodiment of the invention.
Fig. 8 is the structural schematic diagram of fourth embodiment of the invention.
Fig. 9 is the outside drawing of plumber block and adjustment part of the invention.
Figure 10 is another constructional appearance figure of adjustment part of the invention.
Figure 11 is the structural schematic diagram of fifth embodiment of the invention.
Figure 12 is the outside drawing that another form rolling member is coupled in plumber block of the invention.
Specific embodiment
Please refer to Fig. 1 and Fig. 2, the present invention discloses a kind of retractable rod structure and can be used to support a carrier 10 and adjustment should
The height of carrier 10.Configuring the bar assembly quantity in 10 bottom surface of carrier can be one or more.Wherein one end of the second pipe fitting 30
Connect carrier 10, carrier 10 can be desktop, seat or other need to adjust the device or component of height.
The bar assembly includes at least one first pipe fitting 20 and one second pipe fitting 30.The axial direction of first pipe fitting 20 has an accommodating
Channel 22；Second pipe fitting 30 is movably embedded in the holding channel 22 of the first pipe fitting 20.An at least rolling member 40 is rotationally
Configuration is in the first pipe fitting 20.Outer surface 32 of the side of rolling member 40 to contact the second pipe fitting 30.
First pipe fitting 20 and the second pipe fitting 30 can be all square pipe.The present embodiment can take four rolling members 40 pacifies respectively
Fill or be located at every a side of the first pipe fitting 20, and make each rolling member 40 all contact the second pipe fitting 30 each side it is outer
Surface 32.
When opposite first pipe fitting 20 of the second pipe fitting 30 generates the height gone up and down to adjust carrier 10, then rolling member 40 is to the
Two pipe fittings 30 provide rolling friction effect, so that the linear movement of opposite first pipe fitting 20 of the second pipe fitting 30 is by lower
Frictional resistance, while reducing the abrasion between each component.
Fig. 3 and Fig. 4 is please referred to, another embodiment of the present invention is that one end of the second pipe fitting 30 is rolled configured at least one
Part 40.Rolling member 40 is located at the axial inner of the first pipe fitting 20 and contacts the inner wall 24 of the first pipe fitting 20.
The first pipe fitting 20 and the second pipe fitting 30 that Fig. 3 and Fig. 4 is disclosed are square pipe.The present embodiment can take four rollings
Every a side of the second pipe fitting 30 is installed or be located at respectively to part 40.Each rolling member 40 all contacts each side of the first pipe fitting 20
Inner wall 24.
When opposite first pipe fitting 20 of the second pipe fitting 30 generates lifting, then rolling member 40 provides rolling friction to the first pipe fitting 20
Effect so that the linear movement of opposite first pipe fitting 20 of the second pipe fitting 30 is by lower frictional resistance, while reducing each component
Between abrasion.
Fig. 5 and Fig. 6 is please referred to, embodiments of the present invention include the one end of a pipe sleeve 50 to be mounted on the first pipe fitting 20
Portion 26.Rolling member 40 is rotatably mounted on the inside of pipe sleeve 50.In this way, the second pipe fitting 30 passes through pipe sleeve 50, then rolling member 40
Contact the outer surface 32 of the second pipe fitting 30.The relative displacement of second pipe fitting 30 and the first pipe fitting 20 by lower friction in addition to being hindered
Outside power, each rolling member 40 can be used to limit 30 lateral displacement of the second pipe fitting (shaking) so that the displacement of the second pipe fitting 30 have compared with
Good stability.
Fig. 7 and Fig. 8 is please referred to, embodiments of the present invention include the one end of a plumber block 60 to be mounted on the second pipe fitting 30
Portion 34, rolling member 40 is rotatably mounted on plumber block 60, and rolling member 40 contacts the inner wall 24 of the first pipe fitting 20 (see Fig. 8).
Referring to Fig. 9, plumber block 60 includes that an embedded division 62 connects a mounting portion 64.The outer diameter of embedded division 62 is smaller than installation
The outer diameter in portion 64.The surface of plumber block 60 includes an interval annular groove 63, and be spaced annular groove 63 be located at embedded division 62 and mounting portion 64 it
Between.
Plumber block 60 has an expanded bore 66.The bottom surface in 66 self installation portion 64 of expanded bore extends towards embedded division 62.Expanded bore
66 inner wall has a conical surface portion 68.The outer surface of plumber block 60 has plural fine crack 70.It is a bullet between two adjacent fine cracks 70
Property block portion 72.The both ends of rolling member 40 are separately mounted to the elastic block portion 72 of adjacent two.
The embodiment of the present invention also includes an adjustment part 80.Adjustment part 80 has a cone head part 82 and a threaded portion 84.
Referring again to Fig. 8, axial inner of the embedded division 62 of plumber block 60 to be embedded in the second pipe fitting 30.Mounting portion 64 and each
The protrusion of rolling member 40 is located at outside the end 34 of the second pipe fitting 30, and rolling member 40 can contact the inner wall 24 of the first pipe fitting 20.
It is worth noting that, adjustment part 80 is assigned in expanded bore 66 by the lock of threaded portion 84, and 82 opposing tapered surfaces of cone head part
Portion 68.The installation site (depth) of adjustment part 80 is adjusted, then cone head part 82 can push conical surface portion 68 to make each elastic block portion 72 outward
Displacement, achievees the effect that the position for finely tuning each rolling member 40.In other words, the present embodiment can make plumber block by adjusting adjustment part 80
60 outer diameter expands outwardly, and then rolling member 40 is made more reliably to contact the inner wall 24 of the first pipe fitting 20.Further, since interval
Annular groove 63 is between embedded division 62 and mounting portion 64, so the outer diameter variation of mounting portion 64 does not cause threaded portion 84 and expanded bore
66 generate loosening.
Referring again to Fig. 9, one end face of the cone head part 82 of adjustment part 80 has a driving configuration 86.Driving configuration 86 can be with
It is shrinkage pool and drives configuration 86 can turn adjustment part 80 to accept a torsion, such as with hand-held tool appropriate connection.?
Under the action of torsion, adjustable adjustment part 80 is located at the position in expanded bore 66.
There can be a connecting hole 88 in driving configuration 86, connecting hole 88 is to connect a pneumatic shuttle (not shown), and gas
Pressure device is to allow the bar assembly after adjustment height to be capable of forming positioning；In addition, by the active force of release pneumatic shuttle, it can be with
Bar assembly is set to automatically return to initial position.
Referring to Fig. 10, the driving configuration 86 of 80 1 end face of adjustment part can be convex block, and drives to have in configuration 86 and connect
Hole 88 is connect to connect pneumatic shuttle (not shown).
Since driving configuration 86 constructs for convex block, so user or setter can be after bar assembly group be vertical, or use
Under state, using proper implements pass through the first pipe fitting 20 reserve one penetrate construction engage drive configuration 86, with this by outer
Portion imposes torsion driving adjustment part 80 appropriate, achievees the effect that adjusting adjustment part 80 is located at 66 interior location of expanded bore.
Figure 11 is please referred to, the combination of pipe sleeve 50 and rolling member 40 is coupled to the technological means and plumber block of the first pipe fitting 20
The combination of 60 mating rolling members 40 is coupled to the technological means of the second pipe fitting 30, can be applied to bar assembly simultaneously, so may be used
To improve the second pipe fitting 30 to the stability of 20 relative displacement of the first pipe fitting.
Referring to Fig. 9, rolling member 40 is roller (needle roller).Please refer to Figure 12, rolling member 40 can with the idler wheel of sheet, or
Ball.
The above are preferred embodiments of the present invention and design schema, but preferred embodiment and design schema are only to illustrate
It is bright, it is not intended to limit interest field of the invention, it is all with impartial technological means or the power covered by claim content
Sharp range and implement, be the interest field of applicant all without departing from scope of the invention.
Claims (10)
1. retractable rod structure, to connect a carrier and adjust the carrier position, characterized by comprising:
One first pipe fitting, axial direction have a holding channel；
One second pipe fitting, is movably embedded in the holding channel of first pipe fitting；
One rolling member is pivotally disposed between first pipe fitting and second pipe fitting；
The rolling member at least contacts the inner wall of the holding channel or the outer surface of second pipe fitting；Second pipe fitting to this first
Pipe fitting generates relative displacement, which provides rolling friction to first pipe fitting or second pipe fitting.
2. retractable rod structure as described in claim 1, which is characterized in that also include a pipe sleeve, the rolling member can turn
Dynamic is mounted on the pipe sleeve, which is mounted on the one end of first pipe fitting, and second pipe fitting passes through the pipe sleeve, described
Rolling member contacts the outer surface of second pipe fitting.
3. retractable rod structure as described in claim 1, which is characterized in that also include a plumber block, the rolling member can turn
Dynamic is mounted on the plumber block, which is mounted on the one end of second pipe fitting, and the rolling member contacts first pipe fitting
Inner wall.
4. retractable rod structure as claimed in claim 3, which is characterized in that also include an adjustment part, the plumber block has
One expanded bore, and the adjustment part, to be coupled to the expanded bore, which has a conical surface portion, which has a conehead
Portion, for the cone head part with respect to the position of the conical surface portion, the outer diameter that can be used to adjust the plumber block expands outwardly and makes the rolling
Part contacts the inner wall of first pipe fitting.
5. retractable rod structure as claimed in claim 4, which is characterized in that the outer surface of the plumber block has plural number thin
Seam is an elastic block portion between the adjacent fine crack of the two of the plumber block, the adjustment part lock fit over the position in the expanded bore to
The elasticity block portion is pushed to be displaced outwardly the inner wall for making the rolling member contact first pipe fitting.
6. retractable rod structure as claimed in claim 4, which is characterized in that one end mask of the cone head part of the adjustment part
There is driving configuration, which is configured adjust the position of the relatively described expanded bore of the adjustment part to accept a torsion.
7. retractable rod structure as claimed in claim 6, which is characterized in that the driving is configured as a shrinkage pool or one convex
Block.
8. retractable rod structure as claimed in claim 3, which is characterized in that the plumber block includes an embedded division and an installation
Portion, the outer diameter of the embedded division are less than the outer diameter of the mounting portion, axial inner of the embedded division to be embedded in second pipe fitting, institute
It states rolling member and is mounted on the mounting portion, and mounting portion protrusion, outside the end of second pipe fitting, the rolling member contacts institute
State the inner wall of the first pipe fitting.
9. retractable rod structure as claimed in claim 8, which is characterized in that the outer surface of the mounting portion has plural number thin
It stitches, is an elastic block portion between two adjacent fine cracks, the both ends of the rolling member are separately mounted to the elastic block portions of adjacent two, elastomer block
Portion is forced outwards the inner wall that displacement can make the rolling member contact first pipe fitting.
10. retractable rod structure as claimed in claim 8, which is characterized in that the surface of the plumber block includes a spacer ring
Slot, the spacer ring slot position is between the embedded division and mounting portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710728534.XA CN109424607B (en) | 2017-08-23 | 2017-08-23 | Telescopic rod component structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710728534.XA CN109424607B (en) | 2017-08-23 | 2017-08-23 | Telescopic rod component structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109424607A true CN109424607A (en) | 2019-03-05 |
| CN109424607B CN109424607B (en) | 2020-09-22 |
Family
ID=65498088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710728534.XA Active CN109424607B (en) | 2017-08-23 | 2017-08-23 | Telescopic rod component structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109424607B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995002150A1 (en) * | 1993-07-03 | 1995-01-19 | Whitcomb Ellis Fitzroy Peterse | Telescoping members |
| CN2486761Y (en) * | 2001-07-05 | 2002-04-17 | 久鼎金属实业股份有限公司 | Telescopic rod device |
| CN102121493A (en) * | 2010-01-08 | 2011-07-13 | 邬永龙 | Expansion pipe capable of expanding bilaterally |
| US20110248144A1 (en) * | 2010-04-09 | 2011-10-13 | Kuo-Su Lee | Lifting-adjusting assembly for a shaft |
| DE202015007294U1 (en) * | 2015-10-20 | 2015-11-06 | Zhongshan Nikow Precision Industrial Co., Ltd. | Automatic Leg Tube Locking Device, Photography Tripod, Monopod and Prop |
| CN206206343U (en) * | 2016-12-01 | 2017-05-31 | 吴江市久泰机械有限公司 | A kind of telescopic sleeve structure |
-
2017
- 2017-08-23 CN CN201710728534.XA patent/CN109424607B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995002150A1 (en) * | 1993-07-03 | 1995-01-19 | Whitcomb Ellis Fitzroy Peterse | Telescoping members |
| CN2486761Y (en) * | 2001-07-05 | 2002-04-17 | 久鼎金属实业股份有限公司 | Telescopic rod device |
| CN102121493A (en) * | 2010-01-08 | 2011-07-13 | 邬永龙 | Expansion pipe capable of expanding bilaterally |
| US20110248144A1 (en) * | 2010-04-09 | 2011-10-13 | Kuo-Su Lee | Lifting-adjusting assembly for a shaft |
| DE202015007294U1 (en) * | 2015-10-20 | 2015-11-06 | Zhongshan Nikow Precision Industrial Co., Ltd. | Automatic Leg Tube Locking Device, Photography Tripod, Monopod and Prop |
| CN206206343U (en) * | 2016-12-01 | 2017-05-31 | 吴江市久泰机械有限公司 | A kind of telescopic sleeve structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109424607B (en) | 2020-09-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9629452B1 (en) | Elevation table structure | |
| US20080156962A1 (en) | Telescopic adjustable positioning device | |
| US10226119B1 (en) | Tabletop elevation adjustment mechanism | |
| TW202007309A (en) | Table leg with adjustable height capable of reducing surface abrasion | |
| CN105020553B (en) | Multifunctional anti-collapse support | |
| CN109648373A (en) | It is a kind of to ajust structure applied to main shaft | |
| CN109424607A (en) | Retractable rod structure | |
| JP2019042363A (en) | Stretchable rod member structure | |
| CN212564189U (en) | Damping force adjustable shock absorber | |
| US20200263719A1 (en) | Telescopic Module | |
| CN103561612B (en) | Chair strut | |
| CN204132704U (en) | A kind of stool of adjustable leg length | |
| CN205311571U (en) | Flexible supporting leg | |
| CN206795172U (en) | A kind of end part of stabilizer rod rubber parts automatic assembling apparatus | |
| CN105686420A (en) | Novel sliding rail and detection device thereof | |
| CN105054646A (en) | Drawer-type conference chair | |
| CN103402398B (en) | Furniture leveling apparatus | |
| TWI625473B (en) | Telescopic rod member structure | |
| KR20100044417A (en) | Leg height control device for table | |
| CN210129200U (en) | Special keyboard for software development | |
| CN209421290U (en) | Height adjustable feet | |
| CN205568360U (en) | Modified basket drawer slide rail | |
| CN109090836B (en) | Drawing table with self-adaptive adjustment of height and angle of table top | |
| CN208446978U (en) | A kind of ground pin device of autobalance level height | |
| CN209489753U (en) | A kind of folding seat adjustment height pillow |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |