WO2008022526A1 - Ensemble tube télescopique ajustable sans paliers comprenant une bague de verrouillage à friction - Google Patents

Ensemble tube télescopique ajustable sans paliers comprenant une bague de verrouillage à friction Download PDF

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Publication number
WO2008022526A1
WO2008022526A1 PCT/CN2007/002016 CN2007002016W WO2008022526A1 WO 2008022526 A1 WO2008022526 A1 WO 2008022526A1 CN 2007002016 W CN2007002016 W CN 2007002016W WO 2008022526 A1 WO2008022526 A1 WO 2008022526A1
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WO
WIPO (PCT)
Prior art keywords
tube
outer tube
locking ring
locking
slider
Prior art date
Application number
PCT/CN2007/002016
Other languages
English (en)
Chinese (zh)
Inventor
Jianzhong Chen
Original Assignee
Jianzhong Chen
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jianzhong Chen filed Critical Jianzhong Chen
Publication of WO2008022526A1 publication Critical patent/WO2008022526A1/fr

Links

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
    • F16B7/1418—Telescoping systems locking in intermediate non-discrete positions with a clamping collar or two split clamping rings tightened by a screw or a cammed latch member

Definitions

  • the utility model relates to a telescopic tube with stepless adjustment.
  • the telescopic tube can be installed on a vacuum cleaner as a vacuum rod, and can also be used as a support rod or an operation rod on items such as a mop, a camera, a clothes fork and the like.
  • the telescopic tube structure is a common structure, and it can be used in a wide range of telescopic mechanisms with various length adjustment requirements, such as a vacuum cleaner on a vacuum cleaner, a mop lever for a household mop, a support arm of a camera, and the like.
  • the patent scheme introduces a lock pin type locking vacuum tube, its specific The structure is as follows: It comprises an inner tube, an outer tube and an intermediate sleeve disposed between the inner tube and the outer tube and connected to the end of the outer tube; the inner tube tube wall is provided with a plurality of locking through holes, corresponding outer tubes and The middle sleeve is provided with a lever type elastic button.
  • the lever type button is provided with a locking tongue.
  • the locking tongue is supported by the elastic force from the outside to the inner wall of the inner tube, and is inserted into the locking hole of the outer wall to be pinned; Is a vacuum pipe,
  • the wall of the tube is airtight and must be lined with an inner liner in the lumen of the inner tube. It is obvious that the length adjustment of the telescopic tube disclosed in the above aspect is hierarchical, and can only be positioned at each locking hole, which is limited by the limited degree of expansion and contraction, and is still inconvenient to use.
  • a small number of continuously adjustable telescopic tubes have a representative structure: mainly consisting of an inner tube, an outer tube and a fastening joint embedded in the end of the inner tube.
  • the lumen of the telescopic tube is blocked by the fastening joint, and the whole lumen is unobstructed. Therefore, it can only be used as a support rod such as a mop rod or a clothes rail rod, and cannot be used as a vacuum rod of a vacuum cleaner, and has a narrow application range. .
  • the purpose of the utility model is to provide a stepless adjustment expansion and contraction tube with wide application range and high work reliability.
  • the technical solution adopted by the utility model is: a stepless adjustment friction ring locking type telescopic tube, comprising an inner tube, an outer tube and a pinning device, and the inner tube and the outer tube are internally and externally nested and slidingly connected, and the innovation thereof
  • the locking device is composed of a locking ring, a slider and an elastic element
  • the locking ring is a cylindrical open ring, which is embedded between the inner tube and the outer tube and is axially positioned and connected with respect to the outer tube, the locking ring
  • the inner circumferential surface is in contact with the outer circumferential surface of the inner tube;
  • the end portions of the locking ring opening are symmetrically disposed a chute, the ends of the two chutes are relatively close to each other, and the other end is relatively far away
  • the slider corresponds to the opening of the locking ring, is slidably connected with respect to the outer tube, and the bottom surface of the slider is provided with two guide columns downward
  • the two guide posts are correspondingly
  • the "locking ring is a cylindrical open ring, which is embedded between the inner tube and the outer tube and is axially positioned and connected with respect to the outer tube" wherein the locking ring is opposite the outer tube in the shaft
  • the upward positioning connection means that the locking ring can be directly positioned on the outer tube or positioned on the outer tube through an intermediate adapter, and the specific positioning connection can be engaged by the card slot.
  • the telescopic tube further includes an intermediate sleeve, the intermediate sleeve is embedded between the outer tube and the inner tube, the intermediate sleeve is fixedly connected with the outer tube, and the inner sleeve is provided with a ring on the inner circumferential surface.
  • Positioning groove; the locking ring is embedded in the annular positioning groove, so as to be positioned and connected in the axial direction relative to the outer tube.
  • the bottom surface of the intermediate sleeve is provided with a guiding groove on the bottom surface of the corresponding slider, and the bottom of the guiding groove is correspondingly provided with a long hole corresponding to each of the two guiding columns; the bottom of the sliding block is embedded in the guiding groove and the groove With the sliding fit, the guide post on the slider extends downward through the long hole into the chute of the locking ring, thereby guiding the slider through the guiding groove, thereby improving the axial precision of the sliding of the sliding block and avoiding it in sliding Stuck.
  • the locking ring may be a single-layer structure made of nylon or rubber material, but the best solution is that the outer elastic metal layer and the inner friction layer are bonded inside and outside, and the outer elastic metal layer is used.
  • Elastic steel which provides expansion elasticity and increased fastness.
  • the inner friction layer is made of rubber or nylon to increase friction.
  • the working principle of the utility model is as follows: as shown in Fig. 1, according to Fig. 2, Fig. 4 and Fig. 5, in a general state, the slider 4 is relatively far away from the two chutes 5 under the action of the compression spring 14. When the side is moved, the two guide posts 6 on the slider 4 cooperate with the two chutes 5 to cause the locking ring 3 to contract tightly and tightly hold the inner tube 1, thereby locking the positioning.
  • the locking ring 3 is axially positioned and connected to the outer tube 2 through the intermediate sleeve 8, because the tube 2 and the inner tube 1 are also kept in a locked state.
  • the unlocking operation button 7 is pushed in the direction of the arrow in FIG.
  • the inner tube 1 can be freely retracted from the outer tube 2 or pulled out from the outer tube to adjust the total length of the tube.
  • the unlocking operation button 7 is released, and the slider 4 is moved to the opposite side of the two chutes 5 by the compression spring 14, so that the locking ring 3 is contracted, and the inner tube is again hung. Locked to achieve stepless length adjustment of the telescopic tube.
  • the utility model has the following advantages compared with the prior art: 1. Since the utility model adopts the locking ring to lock, the adjustment length is stepless adjustment, the degree of expansion and contraction is large, and the position can be locked at any required length position.
  • the telescopic tube Since the utility model is locked by the locking ring, the telescopic tube is in a locked state under normal conditions, and needs to be adjusted by pressing the unlocking operation button when the adjustment is needed, and is convenient to use.
  • the locking ring is arranged between the inner tube and the outer tube, and the lumen of the telescopic tube remains unobstructed and sealed, thereby meeting the requirements of the vacuum rod of the vacuum cleaner, so that it can It can be used as a lifting support rod or operating rod on mop, camera, clothes fork and other items. It can also be used as a vacuum rod on a vacuum cleaner. It has a wide range of applications.
  • Figure 1 is a schematic exploded view of each component of the present invention.
  • Figure 2 is a schematic view showing the assembly of the present invention
  • Figure 3 is a schematic cross-sectional view of the locking device of the present invention.
  • Figure 4 is a schematic view showing the function of the locking device of the present invention.
  • Figure 5 is a cross-sectional view taken along line A-A of Figure 4.
  • a stepless adjustment friction ring locking telescopic tube is composed of an inner tube 1, an outer tube 2, an intermediate sleeve 8 and a locking device.
  • the outer tube 2 - the end portion is a flared end, in which the intermediate sleeve 8 is embedded, the intermediate sleeve 8 and the outer tube 2 are fixedly connected by screws, and the intermediate sleeve 8 is reinserted into the inner tube 1.
  • the locking device is composed of a locking ring 3, a slider 4 and a compression spring 14; an inner circumferential surface of the intermediate sleeve 8 is provided with an annular positioning groove 9 in which the locking ring 3 is embedded. 9 , in this way, the outer tube 2 is positioned in the axial direction, and the inner circumferential surface of the locking ring 3 is engaged with the outer circumferential surface of the inner tube; for details, see FIG. 1 , FIG. 4 and FIG.
  • the locking ring 3 is a cylindrical open ring, the end portions of the two sides of the opening of the locking ring 3 are symmetrically provided with a chute 5, the ends of the two chutes 5 are relatively close to each other, and the other end is relatively far away; the slider 4 corresponds to the locking
  • the opening of the ring 3 is slidably connected to the outer tube 2, and the bottom surface of the slider 4 is provided with two guiding columns 6 downward.
  • the two guiding columns 6 correspond to the two chutes 5 on the locking ring 3. Embed the fit.
  • the corresponding slider 4 of the outer tube 2 has an oblong hole 15 for the slider 4 to be embedded, and one side of the oblong hole 15 is provided with a positioning protrusion for the end of the compression spring 14 to be sleeved. 16; a compression spring 14 is disposed between the rear end of the slider 4 and the positioning protrusion 16, and the elastic force of the compression spring 14 forces the slider 4 to move toward the front end toward the opposite end sides of the two chutes 5, and the two on the slider 4
  • the guide post 6 cooperates with the two chutes 5 to shrink the locking ring 3 to lock the inner tube 1; the slider 4 is provided with an unlocking button on the outer side of the outer tube 2, see FIG. 1, FIG. 2 and FIG.
  • the outer surface of the intermediate sleeve 8 is provided with a guiding groove 10 corresponding to the bottom surface of the slider 4, and the bottom of the guiding groove 10 is correspondingly provided with a long hole 11; the bottom of the slider 4 is embedded in the bottom
  • the guide groove 10 is slidably engaged with the guide groove 10, and the guide post 6 on the slider 4 extends downward through the corresponding long hole 11 into the chute 5 of the lock ring 3.
  • the locking ring 3 is formed by inner and outer bonding of the outer resilient metal layer 12 and the inner friction layer 13.
  • the outer outer elastic metal layer 12 is an elastic steel layer
  • the inner friction layer 13 is a rubber layer.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

L'invention concerne un ensemble tube télescopique ajustable qui comprend une bague de verrouillage à friction. Cet ensemble comprend un tube intérieur, un tube extérieur et un dispositif de verrouillage; le tube intérieur et le tube extérieur étant mis en contact de façon coulissante par emboîtement. Le dispositif de verrouillage comprend une bague de verrouillage, un bloc coulissant et un élément élastique. La bague de verrouillage est une bague cylindrique à fente, qui est disposée entre le tube intérieur et le tube extérieur et qui est fixée par rapport au tube extérieur dans le sens axial. Deux rainures inclinées sont formées sur chaque extrémité de l'ouverture de la bague de verrouillage; chaque rainure comprenant une extrémité proche de l'extrémité de l'autre rainure, et une extrémité éloignée de l'extrémité de l'autre rainure. Le bloc coulissant est assemblé au tube extérieur de façon à coulisser par rapport à celui-ci. Deux broches de guidage sont disposées sur la surface inférieure du bloc coulissant de façon à faire saillie vers le bas. Les deux broches de guidage entrent respectivement en prise avec les deux rainures inclinées de la bague de verrouillage. Un élément élastique est disposé entre un côté du bloc coulissant et le tube extérieur. Le bloc coulissant est déplacé vers les extrémités des deux rainures inclinées par une force élastique de l'élément élastique, de façon que la bague de verrouillage se rétracte pour verrouiller le tube intérieur et maintenir ce dernier en place. Le côté extérieur opposé au tube extérieur du bloc coulissant est muni d'un bouton de déverrouillage. L'ensemble tube télescopique de l'invention présente les avantages suivants : ajustement sans paliers, facilité d'utilisation, verrouillage fiable et large plage d'utilisation.
PCT/CN2007/002016 2006-08-16 2007-06-28 Ensemble tube télescopique ajustable sans paliers comprenant une bague de verrouillage à friction WO2008022526A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNU200620077119XU CN200946613Y (zh) 2006-08-16 2006-08-16 无级调节摩擦环锁定式伸缩管
CN200620077119.X 2006-08-16

Publications (1)

Publication Number Publication Date
WO2008022526A1 true WO2008022526A1 (fr) 2008-02-28

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ID=38733674

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PCT/CN2007/002016 WO2008022526A1 (fr) 2006-08-16 2007-06-28 Ensemble tube télescopique ajustable sans paliers comprenant une bague de verrouillage à friction

Country Status (2)

Country Link
CN (1) CN200946613Y (fr)
WO (1) WO2008022526A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101813112A (zh) * 2010-05-10 2010-08-25 沈盘根 伸缩管
EP3466547A1 (fr) * 2017-10-03 2019-04-10 Swantech AS Lance télescopique, et en combinaison, une lance télescopique et un pistolet à gâchette

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102320042B (zh) * 2011-09-09 2014-01-08 北京工业大学 嵌套式自动往复机械爪
CN103807264B (zh) * 2012-11-07 2016-09-07 成都飞机设计研究所 一种轴向限位锁
CN107605891B (zh) * 2017-07-18 2023-04-18 浙江亚特电器股份有限公司 一种带伸缩杆的电动工具
CN107334413A (zh) * 2017-08-15 2017-11-10 张家港市新凯不锈钢制品有限公司 伸缩式撑杆
CN113847313B (zh) * 2021-09-14 2023-03-24 海安奥克机械制造有限公司 一种用于升降器材的自动定位锁紧装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3807028C1 (en) * 1988-03-04 1989-09-07 Heidemann-Werke Gmbh & Co Kg, 3352 Einbeck, De Telescopic tube connection
DE3842237A1 (de) * 1988-12-15 1990-06-21 Miele & Cie Teleskoprohrkupplung insbesondere fuer das saugrohr eines staubsaugers
US5458427A (en) * 1991-05-24 1995-10-17 Simond; Ludger Telescopic tubular splined assembly
US5595410A (en) * 1995-02-27 1997-01-21 Chicago Steel Tape Co. Quick-release locking device for telescoping member
US5899481A (en) * 1995-09-06 1999-05-04 Idit International Design N.V. Telescopic element, particularly for frames of folding bicycles
CN2346385Y (zh) * 1998-06-19 1999-11-03 邬兴堂 新型吸尘器伸缩管

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3807028C1 (en) * 1988-03-04 1989-09-07 Heidemann-Werke Gmbh & Co Kg, 3352 Einbeck, De Telescopic tube connection
DE3842237A1 (de) * 1988-12-15 1990-06-21 Miele & Cie Teleskoprohrkupplung insbesondere fuer das saugrohr eines staubsaugers
US5458427A (en) * 1991-05-24 1995-10-17 Simond; Ludger Telescopic tubular splined assembly
US5595410A (en) * 1995-02-27 1997-01-21 Chicago Steel Tape Co. Quick-release locking device for telescoping member
US5899481A (en) * 1995-09-06 1999-05-04 Idit International Design N.V. Telescopic element, particularly for frames of folding bicycles
CN2346385Y (zh) * 1998-06-19 1999-11-03 邬兴堂 新型吸尘器伸缩管

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101813112A (zh) * 2010-05-10 2010-08-25 沈盘根 伸缩管
EP3466547A1 (fr) * 2017-10-03 2019-04-10 Swantech AS Lance télescopique, et en combinaison, une lance télescopique et un pistolet à gâchette

Also Published As

Publication number Publication date
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