CN114876922B - Self-adaptive telescopic rod - Google Patents

Self-adaptive telescopic rod Download PDF

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Publication number
CN114876922B
CN114876922B CN202210640030.3A CN202210640030A CN114876922B CN 114876922 B CN114876922 B CN 114876922B CN 202210640030 A CN202210640030 A CN 202210640030A CN 114876922 B CN114876922 B CN 114876922B
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CN
China
Prior art keywords
rod
way clutch
clutch mechanism
inner rod
friction block
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Application number
CN202210640030.3A
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Chinese (zh)
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CN114876922A (en
Inventor
董颖
常占辉
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Zhejiang Normal University CJNU
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Zhejiang Normal University CJNU
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Priority to CN202210640030.3A priority Critical patent/CN114876922B/en
Publication of CN114876922A publication Critical patent/CN114876922A/en
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Publication of CN114876922B publication Critical patent/CN114876922B/en
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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
    • F16B7/1409—Telescoping systems locking in intermediate non-discrete positions with balls or rollers urged by an axial displacement of a wedge or a conical member
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
    • F16D41/064—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
    • F16D41/064—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls
    • F16D2041/0646—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls the intermediate coupling members moving between recesses in an inner race and recesses in an outer race

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

Abstract

The invention relates to a self-adaptive telescopic rod which comprises an outer rod, an inner rod and a one-way clutch mechanism. One end of the inner rod is arranged in the outer rod through the one-way clutch mechanism, and the outer rod and the inner rod can only move in one direction relatively by utilizing the characteristic that the one-way clutch mechanism is separated in one direction and combined in the other direction, so that the lengths of the outer rod and the inner rod in one direction can be freely changed, and the lengths are kept unchanged when the outer rod and the inner rod are subjected to the acting force in the opposite direction.

Description

Self-adaptive telescopic rod
Technical Field
The invention relates to a telescopic rod, in particular to a self-adaptive telescopic rod.
Background
The telescopic rod is widely applied, wherein the most common telescopic rod is a two-section telescopic rod, the fixing mode and the length adjusting mode of the telescopic rod are more, the more common telescopic rod is provided with the modes of conical tight sleeve threaded fixation, pin fixation and the like, the total length of the telescopic rod is determined by manually adjusting the relative positions of the two rods, and then the adjusted length is fixed at the joint position of the two sections of rods in a threaded fastening or pin positioning mode. The adjustment is relatively cumbersome and the reliability of the connection between the bars is sometimes not guaranteed.
Disclosure of Invention
The invention aims to provide a self-adaptive telescopic rod. The invention has the advantages of automatic adjustment, self-adaptive length, maintenance and the like.
The technical scheme for realizing the purpose of the invention is as follows:
an adaptive telescopic link, its characterized in that: comprises an inner rod, an outer rod and a one-way clutch mechanism; the inner rod is arranged in the outer rod through the one-way clutch mechanism.
The one-way clutch mechanism comprises a wedge-shaped groove and a roller arranged in the wedge-shaped groove, wherein the maximum depth of the wedge-shaped groove is larger than the diameter of the roller, the minimum depth of the wedge-shaped groove is smaller than the diameter of the roller, and the actuating element pushes the roller to the direction with the minimum depth.
The one-way clutch mechanism comprises a groove, a friction block and a retainer, wherein the friction block is arranged in the groove, the friction block is provided with a large diameter and a small diameter, the depth of the groove is larger than the small diameter of the friction block and smaller than the large diameter of the friction block, and the retainer enables the friction block to work in the groove in the large diameter.
The one-way clutch mechanism includes a pawl, a ratchet, and a resilient member that engages the pawl with the ratchet.
One side of the one-way clutch mechanism is provided with an operation hole.
The number of the one-way clutch mechanisms is at least one.
The one-way clutch mechanisms are uniformly distributed in the circumferential direction of the inner rod.
The technical scheme of the invention has at least the following advantages:
automatically adjusts the length and fixes the length at any time, and keeps the length unchanged. The invention can instantly adjust the length of the inner rod and the outer rod and keep the new length as long as the allowable displacement occurs between the inner rod and the outer rod, and the unidirectional clutch mechanism can be adjusted by a special tool when the original form needs to be restored.
Drawings
Fig. 1 is a front view of one embodiment of an adaptive telescoping pole of the present invention.
Fig. 2 is a front view of a second embodiment of an adaptive telescoping pole of the present invention.
Fig. 3 is a front view of a third embodiment of an adaptive telescoping pole of the present invention.
The reference numerals in the drawings indicate: 1-inner rod 2-roller 3-actuating spring 4-outer rod 5-retainer 6-friction block 7-small diameter 8-large diameter 9-pawl 10-spring.
Detailed Description
An embodiment of the present invention will be described in detail with reference to fig. 1.
As shown in fig. 1, an adaptive telescopic rod comprises an outer rod 4 and an inner rod 1, one end of the inner rod 1 is installed inside the outer rod 4, a wedge-shaped groove is formed in a part, matched with the outer rod 4, of the inner rod 1, a roller 2 and an actuating spring 3 are arranged in the wedge-shaped groove, the actuating spring 3 pushes the roller 2 to the shallow end of the wedge-shaped groove, and the diameter of the roller 2 is larger than the depth of the shallow end of the wedge-shaped groove and smaller than the depth of the deep end of the wedge-shaped groove. The inner rod 1 and the outer rod 4 have an operating hole at one end of the right side where the one-way clutch mechanism, i.e. the wedge-shaped groove and the element therein are provided.
When the inner rod 1 and the outer rod 4 are relatively far away, the relative motion between the inner rod 1 and the outer rod 4 enables the roller 2 to move towards the deep end of the wedge-shaped groove against the elastic force of the actuating spring 3, so that the distance between the inner rod 1 and the outer rod 4 can be increased, namely the rod length is increased; when the inner rod 1 and the outer rod 4 are relatively close, the relative motion between the inner rod 1 and the outer rod 4 enables the roller 2 to move towards the shallow end of the wedge-shaped groove, and the diameter of the roller 2 is larger than the depth of the shallow end of the wedge-shaped groove, so that the roller 2 is clamped between the inner rod 1 and the outer rod 4, and the total length of the inner rod 1 and the outer rod 4 is kept unchanged.
In the second embodiment shown in fig. 2, the one-way clutch mechanism employs a groove, a friction block 6, and a cage 5. The large diameter 8 of the friction block is larger than the depth of the groove, the small diameter 7 of the friction block is smaller than the depth of the groove, and the retainer 5 enables the friction block 6 to work in the groove with the large diameter 8 of the friction block. The inner rod 1 and the outer rod 4 are provided with an operation hole at one end on the right side of the position where the groove is arranged.
As in the first embodiment, when the relative movement between the inner rod 1 and the outer rod 4 causes the friction block 6 to work in the groove with the large diameter 8 of the friction block, the inner rod 1 and the outer rod 4 are blocked, and the rod length is kept unchanged; when the relative movement between the inner rod 1 and the outer rod 4 causes the friction block 6 to work in the groove with the small diameter 7 of the friction block, the inner rod 1 and the outer rod 4 can move relatively, so that the rod length can be adjusted adaptively according to the requirement. In fig. 2, when the inner rod 1 and the outer rod 4 are relatively shortened, the movement can be achieved, whereas when the inner rod 1 and the outer rod 4 have a tendency to increase the rod length, the rod length remains unchanged.
In the third embodiment shown in fig. 3, the one-way clutch mechanism includes ratchet teeth provided on the inner wall of the outer rod 4, a pawl 9 mounted on the inner rod 1, and a spring 10 for engaging the pawl 9 with the ratchet teeth. The inner rod 1 and the outer rod 4 have an operation hole at one end on the right side of the position where the one-way clutch mechanism is provided. The working process of the third embodiment is basically the same as that of the first two embodiments, when the inner rod 1 and the outer rod 4 have a trend of reducing the length, the relative motion trend between the inner rod 1 and the outer rod 4 enables the one-way clutch mechanism to be combined, namely the inner rod 1 and the outer rod 4 are clamped through pawl ratchet meshing, and the rod length is kept unchanged; when the length of the inner rod 1 and the length of the outer rod 4 are increased, the relative motion between the inner rod 1 and the outer rod 4 can separate the one-way clutch mechanism, and the length of the rod is increased. Compared with the first two embodiments, the third embodiment can realize stepped stepwise adjustment, and the first embodiment and the second embodiment can realize stepless adjustment.
One end of the one-way clutch mechanism is provided with an operation hole, and when the length of the rod is readjusted, the operation hole is extended into by a specific special tool to change the working state of the one-way clutch mechanism, and the specific special tool enables the one-way clutch mechanism to be always separated, so that the relative positions of the inner rod 1 and the outer rod 4 can be freely adjusted, and the inner rod and the outer rod can be restored to the original states.
The characteristics of the one-way clutch mechanism such as wedge-shaped grooves, ratchets and the like can be arranged on the inner rod or the outer rod. It is apparent that the described embodiments are only a part of embodiments of the present invention, but not all embodiments, and all other embodiments obtained by various equivalent modifications by persons skilled in the art without inventive labor based on the embodiments in the present invention are within the scope of the present invention.

Claims (3)

1. An adaptive telescopic link, its characterized in that: comprises an inner rod, an outer rod and a one-way clutch mechanism; the inner rod is arranged in the outer rod through the one-way clutch mechanism; the one-way clutch mechanism comprises a groove, a friction block and a retainer, wherein the friction block is arranged in the groove, the friction block is provided with a large diameter and a small diameter, the depth of the groove is larger than the small diameter of the friction block and smaller than the large diameter of the friction block, and the retainer enables the friction block to work in the groove in the large diameter; the one-way clutch mechanism is arranged on the inner rod; an operation hole is formed in one side of the one-way clutch mechanism, and when a special tool stretches into the operation hole, the one-way clutch mechanism is kept to be separated; the number of the one-way clutch mechanisms is at least one.
2. An adaptive telescoping pole according to claim 1, wherein: the one-way clutch mechanisms are uniformly distributed in the circumferential direction of the inner rod.
3. An adaptive telescoping pole according to claim 1, wherein: the one-way clutch mechanism is arranged on the outer rod.
CN202210640030.3A 2022-06-08 2022-06-08 Self-adaptive telescopic rod Active CN114876922B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210640030.3A CN114876922B (en) 2022-06-08 2022-06-08 Self-adaptive telescopic rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210640030.3A CN114876922B (en) 2022-06-08 2022-06-08 Self-adaptive telescopic rod

Publications (2)

Publication Number Publication Date
CN114876922A CN114876922A (en) 2022-08-09
CN114876922B true CN114876922B (en) 2023-08-25

Family

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Citations (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1421569A (en) * 1964-11-06 1965-12-17 Automatic locking and unlocking device for two telescopic elements
SU1423837A1 (en) * 1986-01-10 1988-09-15 Грузинский политехнический институт им.В.И.Ленина Friction clutch
WO1995002150A1 (en) * 1993-07-03 1995-01-19 Whitcomb Ellis Fitzroy Peterse Telescoping members
JPH0968289A (en) * 1995-08-31 1997-03-11 Taikisha Ltd Pipe holding device for vertical posture pipe
JPH116506A (en) * 1997-06-17 1999-01-12 Sekisui Jushi Co Ltd Expansion pipe
CN2431430Y (en) * 2000-07-06 2001-05-23 郭晶耀 Implement of telescopic rod structure
CN2486761Y (en) * 2001-07-05 2002-04-17 久鼎金属实业股份有限公司 Telescopic rod device
JP2004092840A (en) * 2002-09-03 2004-03-25 Mory Industries Inc Expansion section wedge type fixing apparatus in expansion double pipe
DE202004016321U1 (en) * 2004-10-20 2005-03-10 Trigum-Engineering Gmbh Train-push rod
DE202004017769U1 (en) * 2004-11-19 2006-03-23 Dewert Antriebs- Und Systemtechnik Gmbh & Co. Kg linear actuator
JP2006307972A (en) * 2005-04-28 2006-11-09 Ntn Corp Direct acting one-way clutch
JP2007085495A (en) * 2005-09-22 2007-04-05 Kawahara Kogyo Kk Contractable pipe
JP2007132367A (en) * 2005-11-08 2007-05-31 Honda Motor Co Ltd Linear one-way clutch
CN201047375Y (en) * 2007-04-04 2008-04-16 河南省电力公司漯河供电公司 Quick-speed locking telescopic link
CN202532126U (en) * 2012-03-28 2012-11-14 阙忠伟 Telescopic leg of camera tripod
CN203570774U (en) * 2013-11-05 2014-04-30 苏州考斯丹五金制品有限公司 Button-type telescopic rod
WO2014169701A1 (en) * 2013-04-15 2014-10-23 重庆英特科技传播有限公司 Concealed connection structure for profiled beams and columns
CN106963466A (en) * 2017-04-10 2017-07-21 上海市同仁医院 A kind of ratchet-like automatic growth valve
CN206487728U (en) * 2016-12-23 2017-09-12 柯美汽车零部件（上海）有限公司 A kind of stepless adjustable and retractable lever apparatus
WO2018035197A1 (en) * 2016-08-17 2018-02-22 D & M Designs Llc Collapsible telescoping pole
CN210484294U (en) * 2019-01-17 2020-05-08 深圳前海帕拓逊网络技术有限公司 A telescopic link and cleaning brush for adjusting length
CN111594094A (en) * 2020-07-01 2020-08-28 大庆金祥寓科技有限公司 Penetrate stifled two-way shut-in well device of joint action
JP2021074332A (en) * 2019-11-11 2021-05-20 レック株式会社 Telescopic rod mounting tool
CN114382802A (en) * 2022-03-09 2022-04-22 浙江师范大学 Wire control actuator

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10052578A1 (en) * 2000-10-23 2002-04-25 Hilti Ag Connecting element has receiving component for bolt and with guiding section adjoining locating section of bore in receiving component and with core diameter which at most corresponds to outside diameter of bolt

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1421569A (en) * 1964-11-06 1965-12-17 Automatic locking and unlocking device for two telescopic elements
SU1423837A1 (en) * 1986-01-10 1988-09-15 Грузинский политехнический институт им.В.И.Ленина Friction clutch
WO1995002150A1 (en) * 1993-07-03 1995-01-19 Whitcomb Ellis Fitzroy Peterse Telescoping members
JPH0968289A (en) * 1995-08-31 1997-03-11 Taikisha Ltd Pipe holding device for vertical posture pipe
JPH116506A (en) * 1997-06-17 1999-01-12 Sekisui Jushi Co Ltd Expansion pipe
CN2431430Y (en) * 2000-07-06 2001-05-23 郭晶耀 Implement of telescopic rod structure
CN2486761Y (en) * 2001-07-05 2002-04-17 久鼎金属实业股份有限公司 Telescopic rod device
JP2004092840A (en) * 2002-09-03 2004-03-25 Mory Industries Inc Expansion section wedge type fixing apparatus in expansion double pipe
DE202004016321U1 (en) * 2004-10-20 2005-03-10 Trigum-Engineering Gmbh Train-push rod
DE202004017769U1 (en) * 2004-11-19 2006-03-23 Dewert Antriebs- Und Systemtechnik Gmbh & Co. Kg linear actuator
JP2006307972A (en) * 2005-04-28 2006-11-09 Ntn Corp Direct acting one-way clutch
JP2007085495A (en) * 2005-09-22 2007-04-05 Kawahara Kogyo Kk Contractable pipe
JP2007132367A (en) * 2005-11-08 2007-05-31 Honda Motor Co Ltd Linear one-way clutch
CN201047375Y (en) * 2007-04-04 2008-04-16 河南省电力公司漯河供电公司 Quick-speed locking telescopic link
CN202532126U (en) * 2012-03-28 2012-11-14 阙忠伟 Telescopic leg of camera tripod
WO2014169701A1 (en) * 2013-04-15 2014-10-23 重庆英特科技传播有限公司 Concealed connection structure for profiled beams and columns
CN203570774U (en) * 2013-11-05 2014-04-30 苏州考斯丹五金制品有限公司 Button-type telescopic rod
WO2018035197A1 (en) * 2016-08-17 2018-02-22 D & M Designs Llc Collapsible telescoping pole
CN206487728U (en) * 2016-12-23 2017-09-12 柯美汽车零部件（上海）有限公司 A kind of stepless adjustable and retractable lever apparatus
CN106963466A (en) * 2017-04-10 2017-07-21 上海市同仁医院 A kind of ratchet-like automatic growth valve
CN210484294U (en) * 2019-01-17 2020-05-08 深圳前海帕拓逊网络技术有限公司 A telescopic link and cleaning brush for adjusting length
JP2021074332A (en) * 2019-11-11 2021-05-20 レック株式会社 Telescopic rod mounting tool
CN111594094A (en) * 2020-07-01 2020-08-28 大庆金祥寓科技有限公司 Penetrate stifled two-way shut-in well device of joint action
CN114382802A (en) * 2022-03-09 2022-04-22 浙江师范大学 Wire control actuator

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地铁隧道多方位高精度钻孔设备的方案设计;刘桓龙;李茂;于兰英;柯坚;郑涛;;城市轨道交通研究(第04期);全文 *

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