CN209017984U - Lifting device - Google Patents
Lifting device Download PDFInfo
- Publication number
- CN209017984U CN209017984U CN201721919596.0U CN201721919596U CN209017984U CN 209017984 U CN209017984 U CN 209017984U CN 201721919596 U CN201721919596 U CN 201721919596U CN 209017984 U CN209017984 U CN 209017984U
- Authority
- CN
- China
- Prior art keywords
- tube
- inner tube
- rubber ring
- outer tube
- lifting device
- 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.)
- Active
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B9/00—Tables with tops of variable height
- A47B9/10—Tables with tops of variable height with vertically-acting fluid cylinder
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B9/00—Tables with tops of variable height
- A47B9/20—Telescopic guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
- B66F3/26—Adaptations or arrangements of pistons
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B2200/00—General construction of tables or desks
- A47B2200/0035—Tables or desks with features relating to adjustability or folding
- A47B2200/005—Leg adjustment
- A47B2200/0051—Telescopic
- A47B2200/0054—Telescopic with three telescopic parts
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Fluid-Damping Devices (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The utility model discloses a kind of lifting devices, including outer tube, inner tube, guidance set and the spring for using fluid as resisting medium and being formed lift action, one end of inner tube is inserted into the outer tube from one end of the outer tube and is fixedly connected with guidance set, a part of guidance set and the inner wall face contact of outer tube form rolling friction or sliding friction, one end of the spring is located in outer tube, the other end of spring passes through inner tube and connect with inner tube, one end that outer tube is inserted into for inner tube is connected with oil scraping mechanism, inner tube pass through oil scraping mechanism and with oil scraping mechanism clearance fit.The lubricating oil of attachment on inner pipe can be scraped when inner tube is gone up and down and be returned in outer tube by the utility model.
Description
Technical field
The utility model relates to a kind of lifting devices for using fluid as resisting medium and being formed activation force.
Background technique
Desk is commonly in life, work and Learning in School as a kind of daily necessities.With people's quality of life
Raising, it is also more and more to the functional requirement of desk, for example, desk have lifting be exactly it is therein requirement one of.
Currently, the lifting of desk is realized by the gas spring mechanism being mounted on table leg mostly, for example, publication number
A kind of lifting device is disclosed for the patent of invention of CN106308039A, which provides holding effect after being included in lifting
Power and use fluid as the spring of resisting medium, first sleeve and the second casing；One end of the spring is located at first set
It is fixed in pipe and with one end of first sleeve；One end of second casing is inserted into the first set from the other end of the first sleeve
The other end of Guan Zhong, spring pass through the second casing, and spring is fixed with the second casing, set in first sleeve and/or the second casing
There is the guidance set for the lifting of the second casing；The guidance set is rolling friction component or sliding friction component.
In above-mentioned lifting device, although the effect of guiding is formd to the second casing using rolling friction component,
For the service life for guaranteeing rolling friction component, it will usually fill lubricating oil in first sleeve, be made by the lubrication of lubricating oil
With so that the frictional force between rolling friction component and first sleeve reduces.However, for above-mentioned lifting device, when
For two casings in uphill process, the lubricating oil of the second sleeve surface is exposed to the outer of first sleeve also with the rising of the second casing
Portion, due to be mounted on first sleeve end guidance set be rolling friction component or sliding friction component, do not appoint
What component can prevent the exposed of lubricating oil.Lubricating oil exposure after the second casing rises and positions, on the second sleeve surface
In air, lifting device in use, be easy to cause user to touch lubricating oil, and the aerial profit of exposure
Lubricating oil is oxidized easily under the flowing of air and loses moisture and dry out, to lose the effect of lubrication.
Summary of the invention
The purpose of this utility model is to provide a kind of lifting device, the utility model can will be attached to when inner tube is gone up and down
Lubricating oil in inner tube, which is scraped, to be returned in outer tube.
The technical solution for solving above-mentioned technical problem is as follows:
Lifting device, including outer tube, inner tube, guidance set and use fluid as resisting medium to form lift action
Spring, one end of inner tube is inserted into the outer tube from one end of the outer tube and is fixedly connected with guidance set, guidance set
A part and the inner wall face contact of outer tube form rolling friction or sliding friction, one end of the spring and be located in outer tube,
The other end of spring passes through inner tube and connect with inner tube, and one end that outer tube is inserted into for inner tube is connected with oil scraping mechanism, and inner tube passes through
Oil scraping mechanism and with oil scraping mechanism clearance fit.
Further, the guidance set includes that one end is inserted into inner tube silently, silently includes inner sleeve, exterior
Pipe, link block and rolling element, the outer peripheral surface of one end connection inner sleeve of link block, the other end connection exterior piping of link block
Inner peripheral surface, the outer peripheral surface of exterior piping is equipped with groove, and the circumferential surface of said inner tube is equipped with through-hole, one of the rolling element
In the groove in exterior piping, another part of rolling element connects after the through-hole in inner tube with the inner surface of outer tube quartile
Touching.
Further, the oil scraping mechanism includes rubber ring.
Further, one end of the rubber ring is to being bent to form the first bending part on the inside of the rubber ring, rubber ring
The other end is to being bent to form the second bending part on the inside of the rubber ring.
Further, the oil scraping mechanism further includes connecting tube, and one end of the connecting tube is fixedly connected with one end of inner tube,
The other end of connecting tube is connect with rubber ring.
Further, the inner peripheral surface of the connecting tube is equipped with annular groove, and the outer peripheral surface of the rubber ring is equipped with edge should
The first lug boss that rubber ring radially extends, first lug boss are embedded into the annular groove.
Further, the second lug boss is additionally provided on the outer peripheral surface of the rubber ring, first lug boss is embedded into institute
After stating in annular groove, the inner peripheral surface of the first lug boss and connecting tube is supported.
The lifting device of the utility model is being provided with oil scraping mechanism, and inner tube passes through oil scraping mechanism and between oil scraping mechanism
After gap cooperation, when inner tube lifting, the most of lubricating oil for being attached to interior pipe surface are scraped and are returned in outer tube by oil scraping mechanism, this
Sample can reduce the outside that lubricating oil is taken out of outer tube by inner tube in large quantities, and lubricating oil is made to keep greasy property.
Detailed description of the invention
Fig. 1 is the outline structural diagram of the lifting device of the utility model；
Fig. 2 is the schematic diagram of the section structure of the lifting device of the utility model；
Fig. 3 is the guidance set in the utility model and the assembling structure schematic diagram between inner tube；
Fig. 4 is the schematic perspective view of the rubber ring in the utility model；
Fig. 5 is the schematic diagram of the section structure of the rubber ring in the utility model；
Fig. 6 is the schematic perspective view of the connecting tube in the utility model；
Fig. 7 is the schematic diagram of the section structure of the connecting tube in the utility model.
Specific embodiment
As depicted in figs. 1 and 2, the lifting device of the utility model, including outer tube 1, inner tube 2, guidance set, oil scraping mechanism
And use fluid as resisting medium and formed the spring 3 of lift action, below to their structure and between relationship
It is described in detail:
As shown in Figure 1 to Figure 3, one end of inner tube 2 be inserted into the outer tube 1 from one end of the outer tube 1 and with guiding group
Part is fixedly connected, and a part of guidance set and the inner wall face contact of outer tube form rolling friction or sliding friction, described to lead
Include that one end is inserted into inner tube silently to component, silently includes inner sleeve 4, exterior piping 5, link block 6 and rolling element
7, the outer peripheral surface of one end connection inner sleeve 4 of link block 6, the inner peripheral surface of the other end connection exterior piping 5 of link block 6, exterior
The outer peripheral surface of piping 5 is equipped with groove, and the circumferential surface of said inner tube 2 is equipped with through-hole, and a part of the rolling element 7 is located at exterior
In groove in piping 5, another part of rolling element 7 is contacted after passing through the through-hole in inner tube 2 with the inner surface of outer tube 1, thus
The inner wall face contact of rolling element 7 and outer tube 1 forms rolling friction.It is either columnar that rolling element 7 can be spherical rolling element
Rolling element.
As depicted in figs. 1 and 2, spring 3 is gas spring, and one end of the spring 3 is located in outer tube 1, the other end of spring 3
It is connect across inner tube 2 and with inner tube 2, drives 2 one lifting of inner tube when spring 3 is gone up and down in this way.Spring 3 initially passes through inner sleeve 4
After be then passed through inner tube 2, spring 3 can be directly connected to (such as welding or be threadedly coupled or hinged) with inner tube 2, can also use
Increased connector (not shown) is attached.
As shown in Figures 1 to 7, one end that outer tube 1 is inserted into for inner tube 2 is connected with oil scraping mechanism, and inner tube 2 passes through oil scraping mechanism
And with oil scraping mechanism clearance fit.When inner tube 2 is gone up and down, oil scraping mechanism scrapes the most of lubricating oil for being attached to 2 surface of inner tube
It returns in outer tube, the outside that lubricating oil is taken out of outer tube 1 by inner tube 2 can be reduced in large quantities in this way, lubricating oil is made to keep lubrication
Performance.Meanwhile oil scraping mechanism forms guiding role to inner tube 2, since the both ends of inner tube 2 are oriented to, inner tube 2 is being risen
It can be more steady during drop.
As shown in Figures 1 to 7, oil scraping mechanism includes rubber ring 9, and one end of the rubber ring 9 is to the inside of the rubber ring 9
It is bent to form the first bending part 9a, the other end of rubber ring 9 is bent to form the second bending part 9b to the inside of the rubber ring 9, leads to
The first bending part 9a and the second bending part 9b are crossed, inner tube 2 either rises or declines, and is attached to the lubricating oil on 2 surface of inner tube
Can be scraped and be returned in outer tube 1, therefore, be provided with the first bending part 9a and the second bending part 9b after, further improve by
Lubricating oil scrapes the efficiency returned in outer tube.
As shown in Figures 1 to 7, oil scraping mechanism further includes connecting tube 10, and one end of the connecting tube 10 and one end of inner tube 2 are solid
Fixed connection, the other end of connecting tube are connect with rubber ring 9.In one or more embodiments, it is preferable that connecting tube 10 and inner tube
One end of 2 connections is equipped with internal screw thread, and inner tube 2 is equipped with external screw thread, and therefore, connecting tube 10 is connected with inner tube 2 by screw thread
It connects.The mode that connecting tube 10 is connect with rubber ring 9 is that annular groove 10a, the rubber are equipped on the inner peripheral surface of the connecting tube 10
The outer peripheral surface of cushion rubber 9 is equipped with the first lug boss 9c radially extended along the rubber ring 9, and first lug boss 9c is embedded into described
In annular groove 10a, so that rubber ring 9 be made to link into an integrated entity with connecting tube 10.This connection type is simple and reliable, is conducive to rubber
First lug boss 9c can rapidly will be embedded into annular groove 10a by the elastic reaction of circle.
As shown in Figures 1 to 7, it is embedding that the second lug boss 9d, the first lug boss 9c is additionally provided on the outer peripheral surface of rubber ring 9
After entering into the annular groove 10a, the second lug boss 9d and the inner peripheral surface of connecting tube 10 are supported.When rubber ring 9 and 2 gap of inner tube
After cooperation, rubber ring 9 is mobile to the inner wall of connecting tube 10 under the extruding of inner tube 2, passes through the second lug boss 9d and connecting tube 10
Inner peripheral surface support, the contact area of rubber ring 9 Yu connecting tube 10 is increased, so that the combination of rubber ring 9 and connecting tube is more
Securely.
Claims (7)
1. lifting device including outer tube, inner tube, guidance set and uses fluid as resisting medium to form lift action
One end of spring, inner tube is inserted into the outer tube from one end of the outer tube and is fixedly connected with guidance set, guidance set
Inner wall face contact formation rolling friction or sliding friction, one end of the spring of a part with outer tube are located in outer tube, bullet
The other end of spring passes through inner tube and connect with inner tube, which is characterized in that and one end that outer tube is inserted into for inner tube is connected with oil scraping mechanism,
Inner tube pass through oil scraping mechanism and with oil scraping mechanism clearance fit.
2. lifting device according to claim 1, which is characterized in that the guidance set includes that one end is inserted into inner tube
It silently, silently include inner sleeve, exterior piping, link block and rolling element, the periphery of one end connection inner sleeve of link block
Face, the inner peripheral surface of the other end connection exterior piping of link block, the outer peripheral surface of exterior piping are equipped with groove, the week of said inner tube
Face is equipped with through-hole, and a part of the rolling element is located in the groove in exterior piping, and another part of rolling element passes through interior
It is contacted after through-hole on pipe with the inner surface of outer tube.
3. lifting device according to claim 1, which is characterized in that the oil scraping mechanism includes rubber ring.
4. lifting device according to claim 3, which is characterized in that one end of the rubber ring is to the inside of the rubber ring
It is bent to form the first bending part, the other end of rubber ring is to being bent to form the second bending part on the inside of the rubber ring.
5. lifting device according to claim 3 or 4, which is characterized in that the oil scraping mechanism further includes connecting tube, the company
One end of adapter tube is fixedly connected with one end of inner tube, and the other end of connecting tube is connect with rubber ring.
6. lifting device according to claim 5, which is characterized in that the inner peripheral surface of the connecting tube is equipped with annular groove,
The outer peripheral surface of the rubber ring is equipped with the first lug boss radially extended along the rubber ring, which is embedded into described
In annular groove.
7. lifting device according to claim 6, which is characterized in that it is convex to be additionally provided with second on the outer peripheral surface of the rubber ring
The portion of rising, after first lug boss is embedded into the annular groove, the inner peripheral surface of the second lug boss and connecting tube is supported.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721919596.0U CN209017984U (en) | 2017-12-29 | 2017-12-29 | Lifting device |
| JP2018004469U JP3219936U (en) | 2017-12-29 | 2018-11-18 | lift device |
| DE202018107082.7U DE202018107082U1 (en) | 2017-12-29 | 2018-12-11 | hoist |
| US16/236,287 US20190200750A1 (en) | 2017-12-29 | 2018-12-28 | Lifting Device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721919596.0U CN209017984U (en) | 2017-12-29 | 2017-12-29 | Lifting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209017984U true CN209017984U (en) | 2019-06-25 |
Family
ID=65228786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721919596.0U Active CN209017984U (en) | 2017-12-29 | 2017-12-29 | Lifting device |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20190200750A1 (en) |
| JP (1) | JP3219936U (en) |
| CN (1) | CN209017984U (en) |
| DE (1) | DE202018107082U1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114194539A (en) * | 2022-01-05 | 2022-03-18 | 佳木斯大学 | Transfer robot |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD1026633S1 (en) * | 2020-03-16 | 2024-05-14 | Dongguan Shichang Metals Factory Ltd. | Guide sleeve for height adjustable table |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2289607A (en) * | 1941-07-16 | 1942-07-14 | Victor Mfg & Gasket Co | Oil seal construction |
| US2556481A (en) * | 1945-12-06 | 1951-06-12 | Earl Lincoln | Hydraulic jack |
| US2646295A (en) * | 1950-08-26 | 1953-07-21 | Victor Mfg & Gasket Co | Oil seal construction |
| GB818852A (en) * | 1957-07-03 | 1959-08-26 | Vauxhall Motors Ltd | Improved packing for reciprocatory rods |
| NL286709A (en) * | 1962-01-12 | 1965-02-10 | ||
| DE1554479A1 (en) * | 1965-09-22 | 1970-01-08 | Stabilus Ind Und Handelsgmbh | Blockable pneumatic or hydropneumatic adjustment device, especially for furniture |
| US3521341A (en) * | 1968-06-17 | 1970-07-21 | Reinhard Hornlein Kg | Method of assembling and forming an extensible column |
| US3758074A (en) * | 1972-08-07 | 1973-09-11 | E Jeffries | Camper lifting system and removable jacks therefor |
| US5988710A (en) * | 1995-09-05 | 1999-11-23 | Defendoor Security Limited | Variable length security bar |
| JPH10331983A (en) * | 1997-05-29 | 1998-12-15 | Unisia Jecs Corp | Oil seal |
| US6189843B1 (en) * | 1999-06-04 | 2001-02-20 | Joel W. Pfister | Linear motion table leg |
| DE10054236A1 (en) * | 2000-11-02 | 2002-07-25 | Okin Ges Fuer Antriebstechnik | telescopic arm |
| US6494005B2 (en) * | 2001-02-02 | 2002-12-17 | Suspa Incorporated | Telescopic linear actuator |
| US6746183B1 (en) * | 2002-09-23 | 2004-06-08 | James G. Sullivan | Shoring device with outer ratcheting collar |
| GB0224644D0 (en) * | 2002-10-23 | 2002-12-04 | Urquhart Dykes & Lord | A castor |
| US7246779B2 (en) * | 2002-12-18 | 2007-07-24 | Suspa Incorporated | Telescopic legs and tables |
| DE10312050A1 (en) * | 2003-03-18 | 2004-10-07 | Spicer Gelenkwellenbau Gmbh & Co. Kg | Sealing arrangement for the length compensation of a universal joint shaft |
| EP2178785A4 (en) * | 2007-07-16 | 2011-04-06 | Cequent Trailer Products | CRIC SET |
| US7490813B1 (en) * | 2008-02-19 | 2009-02-17 | Weddle David R | Rescue tool |
| DE102009009645A1 (en) * | 2009-02-19 | 2010-08-26 | Jochen Klieber | Length adjustable seat post |
| US9278836B2 (en) * | 2011-11-01 | 2016-03-08 | Big River Companies, Inc. | Hand powered hydraulic rescue strut |
| TW201439403A (en) * | 2013-04-15 | 2014-10-16 | China Engineering Consultants Inc | Slim jack apparatus for bridge lifting |
| US9896067B2 (en) * | 2013-06-18 | 2018-02-20 | Horizon Global Americas Inc. | Jack assembly |
| ITMI20132098A1 (en) * | 2013-12-16 | 2015-06-17 | Unifor Spa | ADJUSTABLE LEG FOR A TABLE |
| CN106308039B (en) | 2016-10-20 | 2024-01-30 | 安徽莱特气弹簧有限公司 | Lifting device and lifting table |
-
2017
- 2017-12-29 CN CN201721919596.0U patent/CN209017984U/en active Active
-
2018
- 2018-11-18 JP JP2018004469U patent/JP3219936U/en active Active
- 2018-12-11 DE DE202018107082.7U patent/DE202018107082U1/en active Active
- 2018-12-28 US US16/236,287 patent/US20190200750A1/en not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114194539A (en) * | 2022-01-05 | 2022-03-18 | 佳木斯大学 | Transfer robot |
| CN114194539B (en) * | 2022-01-05 | 2023-02-24 | 佳木斯大学 | Transfer robot |
Also Published As
| Publication number | Publication date |
|---|---|
| DE202018107082U1 (en) | 2019-01-14 |
| JP3219936U (en) | 2019-01-31 |
| US20190200750A1 (en) | 2019-07-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220520 Address after: 213000 No. 18, Fuxing South Road, Jintan District, Changzhou City, Jiangsu Province Patentee after: Jiangsu Jiete Intelligent Furniture Co.,Ltd. Address before: 213200 168 Huacheng Road, Jintan District, Changzhou, Jiangsu Patentee before: JIANGSU JELT LIFTING SYSTEM Co.,Ltd. |
|
| TR01 | Transfer of patent right |