CN206802028U - A kind of expansion link - Google Patents
A kind of expansion link Download PDFInfo
- Publication number
- CN206802028U CN206802028U CN201720712281.2U CN201720712281U CN206802028U CN 206802028 U CN206802028 U CN 206802028U CN 201720712281 U CN201720712281 U CN 201720712281U CN 206802028 U CN206802028 U CN 206802028U
- Authority
- CN
- China
- Prior art keywords
- sliding sleeve
- bar
- locking member
- outer cover
- expansion link
- 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
Landscapes
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
This application discloses a kind of expansion link, including bar and the outer tube being set in outside bar, the bar can relatively described outer tube stretching motion, it is characterized in that, also include locking member, sliding sleeve, outer cover and elastomeric element, the locking member is arranged on the outer tube, the sliding sleeve is set in the outside of the locking member, the sliding sleeve inner chamber is in reverse frustoconic, the sliding sleeve can relatively described outer tube slide up and down, the sliding sleeve can radially extrude the locking member and the bar is locked, the outer cover is set in outside the sliding sleeve and is fixedly connected with the sliding sleeve, the elastomeric element is compressed between the outer cover and the locking member.The expansion link, outer cover is pressed down on, the collapsing length of adjustable lever, unclamps outer cover, bar collapsing length locks automatically, simple in construction, easy to operate.
Description
Technical field
The utility model belongs to a kind of mechanical structure field, and in particular to a kind of expansion link.
Background technology
Expansion link extensively should because it can realize convenient use and storage by the length or height of telescopic advance lever
For daily life, the daily necessities such as mop, clothes-horse, clothes hanger, walking cane can use stretching structure.
Expansion link generally includes outer tube and the bar located at outer tube, realizes that length of telescopic bar or height are adjusted in outer inner telescoping tube by bar
Section, and locked by locking device, expansion link is maintained at the length needed for regulation.Therefore, the locking device of expansion link is to stretching
The normal use of contracting bar is most important.Existing Telescopic road locking device is complicated, and locking device uses screw-threaded coupling mostly
Mode, it is fixed using screw thread and nut or screw, installation is complicated.The locking mode needs to rotate a few could be by outer tube
With rod locking or release, auto lock can not be carried out, cumbersome, using effect is bad.Also, the cooperation of screw thread and nut is held
Easily there is stripped thread, nibble dead phenomenon.
Therefore it provides a kind of expansion link simple in construction, easy to operate, is the technology that those skilled in the art are badly in need of solving
Problem.
Utility model content
In view of the above-mentioned problems of the prior art, the purpose of this utility model is to provide a kind of expansion link, this is flexible
Bar is simple in construction, easy to operate, and can carry out self-locking.
The technical scheme that the utility model is provided is as follows：
A kind of expansion link, including bar and the outer tube that is set in outside bar, the bar can relatively described outer tube stretching motion, also wrap
Locking member, sliding sleeve, outer cover and elastomeric element are included, the locking member is arranged on the outer tube, and the sliding sleeve is set in institute
State the outside of locking member, the sliding sleeve inner chamber is in reverse frustoconic, the sliding sleeve can relatively described outer tube slide up and down, the cunning
Set can radially extrude the locking member bar is locked, the outer cover be set in outside the sliding sleeve and with it is described
Sliding sleeve is fixedly connected, and the elastomeric element is compressed between the outer cover and the locking member.
Further, the locking member includes ball and support set, and the support set is fixed on the outer tube, described
Ball is arranged on the support set, and the sliding sleeve slides ball described in radial compression and made described in the ball extruding locking
Bar.
Further, the support set is set in the outside of the bar, and even circumferential of the support set along the bar is set
Mounting hole is equipped with, the ball is arranged in the mounting hole.
Further, the support set includes first collar and second collar, first collar and second collar
The outside of the bar is respectively sleeved at, second collar is fixed with the outer tube, first collar and second collar
Corresponding position is provided with installation position, and the ball is arranged on the installation position.
Further, the elastomeric element is spring, and the spring is set on the bar.
Further, inner sleeve is fixedly installed on the sliding sleeve inwall, the inner sleeve inner chamber is in reverse frustoconic.
Further, the outer cover and the sliding sleeve pass through clamping or the connection that is screwed.
Further, the outer cover top surface is provided with press section.
Further, the outer tube or the locking member are provided with taper knob.
Expansion link provided by the utility model, when not pressing down on outer cover, because elastomeric element is compressed in outer cover and locking
Between part, there is upward thrust to outer cover in elastomeric element, and outer cover is fixedly connected with sliding sleeve, and sliding sleeve is pulled up by outer cover, sliding
Cover inner chamber be in reverse frustoconic, sliding sleeve is stuck on locking member because lower diameter is smaller, sliding sleeve inwall to locking member radially
With pressure so that locking member radial compression bar, bar because of the extruding by locking member can not free telescopic moving, stretch
The length locking of contracting bar.By pressing down on outer cover, continue elasticity of compression part, outer cover and sliding sleeve are transported downwards with respect to locking member
Dynamic, because sliding sleeve inner chamber is rounding mesa-shaped, the larger position of sliding sleeve internal diameter is in the outside of locking member, and at this moment sliding sleeve is to locking
Part will not cause to extrude, and bar also can be drawn out or retract in outer tube by the pressure of locking member, bar, treat that bar is extend out to
Required length, outer cover, elastomeric element return are unclamped, and drive outer cover and sliding sleeve return, sliding sleeve keeps extruding locking member
State, bar position is fixed, so as to realize self-locking.The expansion link, simple in construction, operation is easy to adjust quick, can be grown in bar
Self-locking is realized after the completion of degree regulation.
Brief description of the drawings
, below will be to embodiment or existing in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments described in application, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation for the expansion link that the present embodiment provides；
Fig. 2 is the structural representation for the expansion link annexation that the present embodiment provides.
Description of reference numerals：Bar 1；Outer tube 2；Sliding sleeve 3；Outer cover 4；Ball 5；Support set 6；Spring 7；First neck 8；First
Boss 9；Second neck 10；Second boss 11；First collar 12；Second collar 13；Inner sleeve 14.
Embodiment
In order that those skilled in the art more fully understand the technical scheme in the application, it is real below in conjunction with the application
The accompanying drawing in example is applied, the technical scheme in the embodiment of the present application is clearly and completely described, it is clear that described implementation
Example only some embodiments of the present application, rather than whole embodiments.It is common based on the embodiment in the application, this area
The every other embodiment that technical staff is obtained under the premise of creative work is not made, it should all belong to the application protection
Scope.
Firstly the need of explanation, top described herein, bottom and it is upper and lower be for convenience, it is not right
This programme is limited, if technical scheme is only that above-mentioned orientation is overturned, falls within the protection domain of the application.
As depicted in figs. 1 and 2, a kind of expansion link that the present embodiment provides, including bar 1 and the outer tube 2 that is set in outside bar 1,
The bar 1 can the relatively described stretching motion of outer tube 2, in addition to locking member, sliding sleeve 3, outer cover 4 and elastomeric element, the locking
Part is arranged on the outer tube 2, and the sliding sleeve 3 is set in the outside of the elastomeric element and the locking member, the cunning
It is in reverse frustoconic to cover 3 inner chambers, the sliding sleeve 3 can relatively described outer tube 2 slide up and down, the sliding sleeve 3 can radially extrude described
Locking member is locked to the bar 1, and the outer cover 4 is set in the outside of sliding sleeve 3 and is fixedly connected with the sliding sleeve 3,
The elastomeric element is compressed between the outer cover 4 and the locking member.
The locking device and its lock mode of expansion link, the use to expansion link play an important roll, hospital transfusion
Transfusion pole or Infusion support, it is often necessary to according to the demand of patient, the height of transfusion pole or Infusion support is adjusted.The present embodiment
The expansion link of offer, bar 1 can be solid cylinder or hollow tubular, and the structure of the expansion link is simple, operate regulation side
Just it is quick, self-locking can be realized after the completion of the length adjustment of bar 1, the expansion link can be used for the body of rod of transfusion pole or Infusion support,
Its height is adjusted.
The expansion link, when not pressing down on outer cover 4, because elastomeric element is compressed between outer cover 4 and locking member, elasticity
There is upward thrust to outer cover 4 in part, outer cover 4 is fixedly connected with sliding sleeve 3, and sliding sleeve 3 is pulled up by outer cover 4, and the inner chamber of sliding sleeve 3 is in
Reverse frustoconic, sliding sleeve 3 are stuck on locking member because lower diameter is smaller, and the inwall of sliding sleeve 3 has radial pressure to locking member,
So that locking member radial compression bar 1, bar 1 because of the extruding by locking member can not free telescopic moving, expansion link
Length locks.Transported downwards with respect to locking member by pressing down on outer cover 4, further elasticity of compression part, outer cover 4 and sliding sleeve 3
Dynamic, because the inner chamber of sliding sleeve 3 is rounding mesa-shaped, the larger position of the internal diameter of sliding sleeve 3 is in the outside of locking member, and sliding sleeve 3 is without crowded
Locking member is pressed, bar 1 also can be drawn out or be retracted in outer tube 2 by the pressure of locking member, bar 1, treat that bar 1 extend out to institute
Length is needed, unclamps outer cover 4, elastomeric element return, and drives outer cover 4 and the return of sliding sleeve 3, sliding sleeve 3 keeps extruding tight lock part
The state of part, the position of bar 1 is fixed, so as to realize self-locking.
The setting of sliding sleeve 3 and outer cover 4 is to install for convenience, and sliding sleeve 3 is inserted in from the lower section of outer tube 2 and is placed in locking member
Outside, because the internal cavity of sliding sleeve 3 is in reverse frustoconic, the lower inner diameter of sliding sleeve 3 is smaller, can be stuck in the locking position of locking member
Put, outer cover 4 is nested in the outside of sliding sleeve 3 from top and is fixedly connected with sliding sleeve 3, make elastomeric element be compressed in outer cover 4 with
Between locking member.Sliding sleeve 3 is fixedly connected with outer cover 4.Can be to be fixedly connected between elastomeric element and outer cover 4, can also
Equally, between elastomeric element and locking member can be fixedly connected, both can also be without fixation without fixation.
Specifically, the locking member includes ball 5 and support set 6, the support set 6 is fixed on the outer tube 2, institute
State ball 5 to install on the support set 6, the sliding sleeve 3 slides ball 5 described in radial compression and makes the extruding of ball 5 locking
The bar 1.
In the present embodiment, when not pressing 4 top of outer cover, the lower inner diameter smaller part of sliding sleeve 3 is located at the position of ball 5, sliding sleeve 3
Inwall is radially extruded ball 5, so that the pressure ram 1 of ball 5, prevents bar 1 from moving freely, the position locking of bar 1.When
Outer cover 4 is pressed down on, drives sliding sleeve 3 to move down, internal diameter of the sliding sleeve 3 at ball 5 becomes big, and the inwall of sliding sleeve 3 releases squeezing to ball 5
Pressure, ball 5 are to release the extruding to bar 1, and bar 1 can relatively move with respect to outer tube 2, so as to be adjusted to the collapsing length of bar 1
Section.After the completion of the regulation of the collapsing length of bar 1, outer cover 4 is unclamped, elastomeric element recovers initial length, drives on outer cover 4 and sliding sleeve 3
Move, the inwall of sliding sleeve 3 recovers to extrude ball 5, and the length of bar 1 is locked automatically so as to realize.
Ball 5 preferably uses steel ball.Ball 5 along the even circumferential of bar 1 arrange, the quantity of ball 5 at least two, preferably along bar
1 even circumferential is continuously provided with ball 5.Because ball 5 can roll, during regulation, locking member can be reduced to bar 1
Hinder, make the telescopic adjustment of bar 1 more convenient easy.
Wherein, the support set 6 is set in the outside of the bar 1, and even circumferential of the support set 6 along the bar 1 is set
Mounting hole is equipped with, the ball 5 is arranged in the mounting hole.Mounting hole is vertical with bar, and mounting hole can be circular, also may be used
To be square, ball 5 is arranged in mounting hole, and ball 5 can be extruded by the inwall of sliding sleeve 3 and extrude check lock lever 1.
The present embodiment provides the another embodiment of support set, and the support set 6 includes first collar 12 and second set
Ring 13, first collar 12 are respectively sleeved at the outside of the bar 1, second collar 13 and institute with second collar 13
State outer tube 2 to fix, the collar 13 of first collar 12 and second is provided with installation position, and the ball 5 is arranged on the installation position
On.In the present embodiment, first collar 12 is fixed with second collar, the 13 parallel outside for being set in bar 1, second collar 13 with outer tube 2
Connection, first collar 12 are provided with installation position in corresponding face with second collar about 13, and installation position can be arc groove shape,
It can be panel shape.First collar 12 and second collar 13, linked together by ball 5 and installation position installation, installation position
Setting can prevent ball 5 from being rolled along the circumference of bar 1, ball 5 is distributed along the even circumferential of bar 1.Using first collar 12 and second
The combination of the collar 13 is used to install ball 5, simple in construction, easy for installation.
Specifically, the elastomeric element is spring 7, the spring 7 is set on the bar 1 the present embodiment.Spring 7 is arranged
On bar 1, and be compressed between outer cover 4 and locking member, the structure of spring 7 is simple, easy to install, the elasticity of spring 7 compared with
It is good, make expansion link using effect good.
In order that scheme more optimizes, inner sleeve 14 is fixedly installed on the inwall of sliding sleeve 3, the inner chamber of inner sleeve 14 is in
Truncated cone-shaped.The setting of inner sleeve 14, locking member being extruded by the inwall of inner sleeve 14, the extruding to locking member is more favourable,
It is relatively reliable so as to be locked out, so as to which locking effect is more preferable.
Connection of the present embodiment to outer cover 4 and sliding sleeve 3 is further described, and the outer cover 4 and the sliding sleeve 3 pass through card
Connect or be screwed connection.In the present embodiment, clamping between outer cover 4 and sliding sleeve 3 is specifically, the inwall of outer cover 4 is provided with the
One neck 8, the top of the first neck 8 be vertical table-board, and the outer wall of sliding sleeve 3 is provided with first boss 9, and the first neck 8 is for blocking the
One boss 9.The first boss 9 on the outer wall of sliding sleeve 3 is blocked by the first neck 8 on outer cover 4, realizes consolidating for outer cover 4 and sliding sleeve 3
Fixed connection, both are easy for installation.In order that outer cover 4 and sliding sleeve 3 are connected and more fastened, the inwall bottom of outer cover 4 is additionally provided with the second card
Groove 10, the outer wall of sliding sleeve 3 are provided with second boss 11, and the second neck 10 is used to block second boss 11.Outer cover 4 passes through with set 2 is changed
Clamping and threaded connection, it is easy to connect reliable, it is easy to accomplish.
Optimization, the top surface of outer cover 4 is provided with press section.Press section surface can be arranged to shape corresponding with finger shape
Shape, may also set up camber, and the surface of press section is also provided with decorative pattern.The setting of press section, pressing outer cover 4 is set more to relax
It is suitable convenient.Also anti-skid design can be provided with outer cover 4 or the outer wall of sliding sleeve 3, be easy to slide downward outer cover 4 and sliding sleeve 3 to operate.
More optimal, the outer tube 2 or the locking member are provided with taper knob.Taper knob preferably uses rubber system
Into taper knob can be arranged to shape corresponding with finger grip shape, and the outer surface of taper knob can also be provided with anti-skidding flower
Line.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or new using this practicality
Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments in the case where not departing from spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (9)
1. a kind of expansion link, including bar (1) and the outer tube (2) that is set in outside bar, the bar (1) can the flexible fortune of relatively described outer tube
It is dynamic, it is characterised in that to be also arranged on described including locking member, sliding sleeve (3), outer cover (4) and elastomeric element, the locking member
On outer tube (2), the sliding sleeve (3) is set in the outside of the locking member, and sliding sleeve (3) inner chamber is in reverse frustoconic, described
Sliding sleeve (3) can relatively described outer tube (2) slide up and down, the sliding sleeve (3) can radially extrude the locking member to the bar
(1) locked, the outer cover (4) is set in the sliding sleeve (3) outside and is fixedly connected with the sliding sleeve (3), the elasticity
Part is compressed between the outer cover (4) and the locking member.
2. expansion link according to claim 1, it is characterised in that the locking member includes ball (5) and support set
(6), the support set (6) is fixed on the outer tube (2), and the ball (5) is arranged on the support set (6), the cunning
Set (3) slides ball (5) described in radial compression and the ball (5) extruding is locked the bar (1).
3. expansion link according to claim 2, it is characterised in that the support set (6) is set in the outer of the bar (1)
Portion, even circumferential of the support set (6) along the bar (1) are provided with mounting hole, and the ball (5) is arranged on the mounting hole
It is interior.
4. expansion link according to claim 2, it is characterised in that the support set (6) includes first collar (12) and the
Two collars (13), first collar (12) and second collar (13) are respectively sleeved at the outside of the bar (1), and described the
Two collars (13) are fixed on the outer tube (2), on first collar (12) position corresponding with second collar (13)
Provided with installation position, the ball (5) is arranged on the installation position.
5. expansion link according to claim 1, it is characterised in that the elastomeric element is spring (7), the spring (7)
It is set on the bar (1).
6. expansion link according to claim 1, it is characterised in that be fixedly installed inner sleeve on sliding sleeve (3) inwall
(14), inner sleeve (14) inner chamber is in reverse frustoconic.
7. expansion link according to claim 1, it is characterised in that the outer cover (4) and the sliding sleeve (3) by clamping or
Person is screwed connection.
8. expansion link according to claim 1, it is characterised in that outer cover (4) top surface is provided with press section.
9. expansion link according to claim 1, it is characterised in that the outer tube (2) or the locking member are provided with hand
Sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720712281.2U CN206802028U (en) | 2017-06-19 | 2017-06-19 | A kind of expansion link |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720712281.2U CN206802028U (en) | 2017-06-19 | 2017-06-19 | A kind of expansion link |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206802028U true CN206802028U (en) | 2017-12-26 |
Family
ID=60747785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720712281.2U Active CN206802028U (en) | 2017-06-19 | 2017-06-19 | A kind of expansion link |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206802028U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420390A (en) * | 2017-06-19 | 2017-12-01 | 长沙华健医疗设备有限公司 | A kind of expansion link |
| CN109681503A (en) * | 2019-02-12 | 2019-04-26 | 郑海东 | A kind of telescopic rod |
-
2017
- 2017-06-19 CN CN201720712281.2U patent/CN206802028U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420390A (en) * | 2017-06-19 | 2017-12-01 | 长沙华健医疗设备有限公司 | A kind of expansion link |
| CN109681503A (en) * | 2019-02-12 | 2019-04-26 | 郑海东 | A kind of telescopic rod |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107420390A (en) | A kind of expansion link | |
| CN206802028U (en) | A kind of expansion link | |
| CN210406439U (en) | Tree protection bracket for landscaping | |
| AU2008294554A1 (en) | Walking aids | |
| CN208221272U (en) | Anti-rotational telescopic rod | |
| CN106989636B (en) | A kind of retractable spontoon | |
| CN107048691A (en) | A kind of length-adjustable table frame and desk | |
| CN201306341Y (en) | Telescopic tube structure | |
| US11084161B2 (en) | Anti-rotational telescopic pole | |
| CN108644191A (en) | A kind of built-in pressure expansion self-locking structural casing | |
| CN102638738A (en) | Microphone bracket | |
| CN207477746U (en) | Multifunctional transfusion chair | |
| CN209115470U (en) | Facilitate the telescopic rod of adjusting | |
| CN207349739U (en) | A kind of telescopic tripod | |
| CN209203966U (en) | A kind of Orthopaedic nursing crutch | |
| CN204511007U (en) | A kind of locking device of tent pole | |
| CN205956699U (en) | Telescoping support | |
| CN213978271U (en) | Fixed clothes hanger bracing piece that dries in air of exempting from to punch | |
| CN110064089B (en) | Press-adjusting type infusion support and installation and use method thereof | |
| CN206996652U (en) | Chemical experiment iron stand platform | |
| CN219307859U (en) | Strut of alpenstock | |
| CN204533094U (en) | Quick-inserting structure and alpin-stock | |
| CN210992108U (en) | Bedside drainage bottle dead lever is transported to operating room postoperative | |
| CN214171054U (en) | Automatic locking rod of any telescopic elastic body of medical convenient storage vehicle | |
| CN204541645U (en) | Telescopic coat staying device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |