CN206874609U - A kind of outer lock construction of expansion link - Google Patents
A kind of outer lock construction of expansion link Download PDFInfo
- Publication number
- CN206874609U CN206874609U CN201720523560.4U CN201720523560U CN206874609U CN 206874609 U CN206874609 U CN 206874609U CN 201720523560 U CN201720523560 U CN 201720523560U CN 206874609 U CN206874609 U CN 206874609U
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- CN
- China
- Prior art keywords
- lock
- expansion link
- bar
- curved portions
- inside groove
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Abstract
The utility model discloses a kind of outer lock construction of expansion link,It is related to a kind of be used for the scaling operation quick locking of expansion link or the lock construction of quick release,The expansion link is that interior bar by being set with mutually and outer bar are formed,Lock tube of the lock and turning set for also including being fixedly mounted on outer boom end outside lock,Multiple circumference uniform distributions are provided with lock outer end and stretch out the shell fragment of outer bar outer end,The technical characteristic that the structure discloses mainly has additional the curved portions of an evagination in each shell fragment outer surface,Accordingly it is provided with lock tube inner surface identical with the quantity of curved portions,And the equipped inside groove that coincide,It then need to only operate lock tube and determine angle just,Reverse turn,And curved portions are made to depart from inside groove or into inside groove,Inwardly the multiple shell fragments of pushing tow it can hold interior bar tightly or unclamp interior bar,Also flexible locking or the telescopic adjustment of expansion link are achieved that,The outer lock construction of expansion link after improvement also has easy to operate,It is laborsaving,Coupling mechanism force is firm,Using it is reliable the advantages that.
Description
Technical field
It the utility model is related to a kind of outer lock construction flexible for locking or discharging length of telescopic bar, i.e., a kind of expansion link
Outer lock construction.
Background technology
Expansion link be it is a kind of it is common, the adjustable tune of telescopic is mainly realized by the interior bar that is set with mutually and outer bar
Pole, it can according to user's height, operating space distance and flexible modulation use length, and have easy to operate, laborsaving etc.
Use advantages, therefore can be widely applied on the holding rod of sanitary equipment class or on the action bars of tool-class.Meanwhile it can also be designed on expansion link
Outer lock construction, it is therefore an objective to lock by operating outer lock construction or discharge the expanding-contracting action between inside and outside bar, reach flexible with this
The flexible locking of bar or the purpose of telescopic adjustment.
At present, most outer lock construction is all lock by being fixedly mounted on outer boom end and turning set outside lock
Lock tube etc. form, multiple circumference uniform distributions are provided with lock outer end and stretch out the shell fragment of outer bar outer end, when interior bar activity is stretched into
In lock and outer bar, just inwardly the multiple shell fragments of pushing tow it need to can only hold interior bar tightly by positive and negative rotation lock tube or unclamp interior bar,
It is achieved that flexible locking or the telescopic adjustment of expansion link.
However, the locking mode of lock tube pushing tow shell fragment is all to use screw thread screw-fashion, it is specifically：Provided with multiple shell fragments
Lock outer end be set to tapered end, then external screw thread is portrayed on the outer surface of multiple shell fragments, and in lock tube be a cone
Hole, and internal thread is portrayed in taper hole inner surface, therefore when lock tube screws into lock, then progressively will inwardly it be pushed up using pyramidal structure
Pushing shrapnel holds interior bar tightly, so as to realize the flexible locking of expansion link；Conversely, lock tube screws out lock, then the thrust on shell fragment obtains
To release, so as to realize the telescopic adjustment of expansion link.
The mode of operation use that this screw thread screws is more troublesome, and locking or release are required for lock tube rotating many circles
Can realize, and also need in locking operator possess it is certain screw strength, be not suitable for the less crowd of strength and use；Separately
Outside, the coupling mechanism force of the outer lock construction is also less reliable, and often impact loosens the screw thread of lock tube during the use of expansion link
Place is screwed, so as to influence the normal use of expansion link.
The content of the invention
The defects of technical problem to be solved in the utility model is to overcome prior art and provide it is a kind of it is easy to operate,
Laborsaving, coupling mechanism force is firm, the outer lock construction of service-strong expansion link.
Technical problem of the present utility model is achieved through the following technical solutions：
A kind of outer lock construction of expansion link, including outer bar, the lock for being fixedly mounted on outer boom end, turning set are mounted in lock
The interior bar that outer lock tube and activity is stretched into lock and outer bar；Described lock outer end is provided with the shell fragment of multiple circumference uniform distributions,
The shell fragment of the plurality of circumference uniform distribution stretches out outer bar outer end and common obvolvent is outside the interior bar, and each described shell fragment outer surface is equal
Curved portions provided with an evagination, accordingly it is provided with identical with the quantity of the curved portions in lock tube inner surface and coincide what is be equipped with
Inside groove；Described lock tube determines the positive and negative rotation of angle, and curved portions is departed from inside groove or into inside groove, and then drives the multiple
Shell fragment holds interior bar tightly or unclamps interior bar.
Each described shell fragment inner surface is equipped with the locking plate for contacting the interior bar outer wall.
Described lock inner end outer surface is provided with the limit rib of multiple circumference uniform distributions, is accordingly provided with lock tube inner end more
The stopper slot of individual circumference uniform distribution, each limit rib are in stopper slot；Described lock tube is positive and negative to be rotated and drives limit rib edge
Stopper slot to reciprocatingly slide, the curved portions depart from inside groove or into inside groove.
Described lock outer end is provided with the shell fragment of four circumference uniform distributions, and each shell fragment outer surface is equipped with an arc
Portion, accordingly it is provided with four circumference uniform distributions and the inside groove for equipped four curved portions of coincideing in lock tube inner surface；Described lock tube rotates
The positive and negative rotation for driving limit rib to form 45 degree in stopper slot.
Each described shell fragment outer end is equipped with the anti-avulsion step to turn up, is accordingly provided with lock tube outer end and stops with described
Shoulder in the equipped anti-avulsion of de- step.
Described curved portions are the outer raised line of strip, and its one end is connected on anti-avulsion step, the other end axially extend to
Shell fragment root；Described curved portions axial line and lock axis parallel.
Described inside groove, which axially extends, to be arranged on the inner surface of lock tube, and the inside groove axial line is put down with lock tube axial line
OK.
Described lock inner end is provided with an outer shoulder of circle anti-avulsion, and the contact of described lock tube inner end is outside the anti-avulsion on shoulder.
Multiple described shell fragments and curved portions are collectively forming the cross section of plum blossom-shaped.
Described outer bar, interior bar, lock tube and lock is on same axial line.
Compared with prior art, the utility model mainly has additional the arc of an evagination in each shell fragment outer surface
Portion, and coincide equipped inside groove identical with the quantity of curved portions accordingly is provided with lock tube inner surface, then need to only operate lock tube and determine angle
Positive and negative rotation is spent, and curved portions is departed from inside groove or into inside groove, you can in the inside multiple shell fragments of pushing tow are held interior bar tightly or unclamped
Bar, be also achieved that flexible locking or the telescopic adjustment of expansion link, the outer lock construction of the expansion link after improvement also have it is easy to operate,
Laborsaving, coupling mechanism force is firm, using it is reliable the advantages that.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is Fig. 1 A-A cutaway view Amplified images.
Fig. 3 is Fig. 1 three-dimensional exploded view.
Fig. 4 is the cross-sectional view of lock.
Fig. 5 is the cross-sectional view of lock tube.
Embodiment
The utility model embodiment will be elaborated again by above-mentioned accompanying drawing below.
As shown in Fig. 1 ~ Fig. 5,1. outer bars, 2. interior bars, 3. lock tubes, 31. inside grooves, shoulder, 33. stopper slots, 4. locks in 32. anti-avulsions
Seat, 41. shell fragments, 42. curved portions, 43. anti-avulsion steps, 44. limit ribs, 45. anti-avulsions outer shoulder, 5. locking plates.
A kind of outer lock construction of expansion link, as shown in Figure 1, Figure 3, it is related to a kind of for the scaling operation of expansion link is quick
Locking or the lock construction of quick release, the expansion link are that interior bar 2 by being set with mutually and outer bar 1 are formed, and inside and outside bar is using height
Strength lightweight tube and pipe of aluminium alloy make, the expansion link with the outer lock construction can according to user's height, operating space distance and
Flexible modulation uses length, therefore can be widely applied on the holding rod of sanitary equipment class or on the action bars of tool-class.
Lock tube of the lock 4 and turning set that described outer lock construction includes being fixedly mounted on the end of outer bar 1 outside lock
3, lock 4 and lock tube 3 are hollowed tubular member made of high-quality plastics, and the present embodiment is made with the view upper end shown in Fig. 1
It is described in detail for outer end, view lower end as the inner.
Wherein, the outer end of lock 4 is provided with the shell fragment 41 of four circumference uniform distributions, and the shell fragment of four circumference uniform distributions stretches out simultaneously
The outer end of outer bar 1, the quantity of shell fragment 41 also can use multiple, the structural principle of shell fragment 41 according to the difference of rod member external diameter size
For：By being provided with the outward opening elongated slot of four circumference uniform distributions in the outer end of lock 4, so as to form one end disjunctor outside lock 4
End, the hanging shell fragment 41 in one end, then just the relative disjunctor one end of energy form elasticity bending and reset the free end of shell fragment；Meanwhile
Each outer end of shell fragment 41 is equipped with the anti-avulsion step 43 to turn up, and each inner surface of shell fragment 41 is equipped with locking plate 5, lived in interior bar 2
It is dynamic when stretching into lock 4 and outer bar 1, it can be in direct contact with the outer wall of interior bar 2, it is to drive the obvolvent of shell fragment 41 in lock tube 3 that it, which is acted on,
During interior bar 2, coupling mechanism force can be strengthened；Each outer surface of shell fragment 41 is equipped with the curved portions 42 of an evagination, and the curved portions are strip
The outer raised line of shape, its one end are connected on anti-avulsion step 43, and the other end is axially extended to the root of shell fragment 41, the axial line of curved portions 42
With the axis parallel of lock 4；Therefore, four shell fragments 41 and four curved portions 42 enclose the plum blossom-shaped formd shown in Fig. 4 jointly
Cross section.
The described profile of lock tube 3 is small in the end and big in the middle, is mainly used in facilitating the finger grip of operator and puts forth effort,
The outer end of lock tube 3 is provided with shoulder 32 in anti-avulsion, can be equipped with the phase of anti-avulsion step 43 on four shell fragments 41, to prevent lock tube 3 from lock
4 outer ends of seat, i.e. upper end comes off shown in Fig. 1；And the inner end of lock tube 3 then contacts the shoulder outside the default circle anti-avulsion of the inner end of lock 4
On 45, to prevent lock tube 3 from lock 4 is inner, i.e. lower end comes off shown in Fig. 1.
The described inner surface of lock tube 3 is provided with the inside groove 31 of four circumference uniform distributions as shown in Figure 5, and the inside groove, which axially extends, to be set
Put on the inner surface of lock tube 3, its axial line and the axis parallel of lock tube 3, the quantity of inside groove 31, position must be with curved portions 42
Quantity, position is identical and corresponds to one by one, i.e. four curved portions 42 just coincide is fitted in four inside grooves 31；Therefore, lock tube 3
Internal diameter must be slightly larger than the circumference external diameter that four shell fragments 41 are formed, but be necessarily less than outside the circumference that four curved portions 42 are formed
Footpath, then rotating lock tube 3 by the disengaging of curved portions 42 and inside groove 31 or equipped could realize the inside pushing tow of shell fragment 41 or multiple
Position, after outer bar 1, interior bar 2, lock tube 3 and lock 4 assemble in place, just on same axial line, so as to ensure that lock tube 3 is grasped
The uniformity of work.
In addition, lock tube 3 can be formed relative to lock 4 determines the positive and negative rotation of angle, inside groove is driven when 3 forward or reverse of lock tube
31 synchronous axial systems, and then make curved portions 42 depart from inside groove 31, now four shell fragments 41 by inside pushing tow close obvolvent in interior bar 2
Outside, then after strengthening coupling mechanism force by locking plate 5, the telescopic of expansion link is also just locked；Driven when lock tube 3 is inverted or rotated forward
The synchronous axial system of inside groove 31, and then curved portions 42 is entered inside groove 31, now four shell fragments 41 reset and discharge the locking in interior bar 2
Power, then the telescopic and can of expansion link readjust.
The positive and negative rotational structure of angle of determining of the lock tube 3 is to be provided with four circumference uniform distributions in the inner end outer surface of lock 4
Limit rib 44, is accordingly provided with the stopper slot 33 of four circumference uniform distributions in the inner end of lock tube 3, and each limit rib 44 is arranged at correspondingly
Stopper slot 33 in, when 3 positive and negative 45 degree of lock tube rotates, limit rib 44 will be driven to be reciprocatingly slided along stopper slot 33, then just
Corresponding curved portions 42 depart from inside groove 31 or enter inside groove 31, also just just correspond to flexible locking or the telescopic adjustment of expansion link.
Described above is only specific embodiment of the utility model, it should be appreciated by those skilled in the art that any and reality
The equivalent structure design of example is applied, should be included within the scope of protection of the utility model.
Claims (10)
1. a kind of outer lock construction of expansion link, including outer bar（1）, be fixedly mounted on outer bar（1）The lock of end（4）, turning set
Lock tube outside lock（3）And lock is stretched into activity（4）And outer bar（1）Interior interior bar（2）；Described lock（4）Outer end
Shell fragment provided with multiple circumference uniform distributions（41）, the shell fragment of the plurality of circumference uniform distribution（41）Stretch out outer bar（1）Outer end and common obvolvent
In the interior bar（2）Outside, it is characterised in that each described shell fragment（41）Outer surface is equipped with the curved portions of an evagination（42）,
Accordingly in lock tube（3）Inner surface is provided with and the curved portions（42）Quantity is identical and the equipped inside groove that coincide（31）；Described
Lock tube（3）Determine the positive and negative rotation of angle, and make curved portions（42）Depart from inside groove（31）Or into inside groove（31）, and then described in drive
Multiple shell fragments（41）Hold interior bar tightly（2）Or unclamp interior bar（2）.
A kind of 2. outer lock construction of expansion link according to claim 1, it is characterised in that each described shell fragment（41）It is interior
Surface is equipped with the contact interior bar（2）The locking plate of outer wall（5）.
A kind of 3. outer lock construction of expansion link according to claim 1, it is characterised in that described lock（4）Outside inner end
Surface is provided with the limit rib of multiple circumference uniform distributions（44）, accordingly in lock tube（3）Inner end is provided with the stopper slot of multiple circumference uniform distributions
（33）, each limit rib（44）It is in stopper slot（33）It is interior；Described lock tube（3）It is positive and negative to rotate and drive limit rib（44）
Along stopper slot（33）Reciprocatingly slide, the curved portions（42）Depart from inside groove（31）Or into inside groove（31）.
A kind of 4. outer lock construction of expansion link according to claim 3, it is characterised in that described lock（4）Outer end is set
There is the shell fragment of four circumference uniform distributions（41）, each shell fragment outer surface is equipped with a curved portions（42）, accordingly in lock tube（3）Interior table
Face, which is provided with four circumference uniform distributions and coincide, is equipped with four curved portions（42）Inside groove（31）；Described lock tube（3）Rotate and drive limit
Position muscle（44）In stopper slot（33）The interior positive and negative rotation for forming 45 degree.
A kind of 5. outer lock construction of expansion link according to claim 1, it is characterised in that each described shell fragment（41）Outside
End is equipped with the anti-avulsion step to turn up（43）, accordingly in lock tube（3）Outer end is provided with and the anti-avulsion step（43）Equipped
Shoulder in anti-avulsion（32）.
A kind of 6. outer lock construction of expansion link according to claim 5, it is characterised in that described curved portions（42）For length
The outer raised line of bar shaped, its one end are connected to anti-avulsion step（43）On, the other end is axially extended to shell fragment（41）Root；Described arc
Shape portion（42）Axial line and lock（4）Axis parallel.
A kind of 7. outer lock construction of expansion link according to claim 1, it is characterised in that described inside groove（31）Vertically
It is extended on lock tube（3）Inner surface on, the inside groove（31）Axial line and lock tube（3）Axis parallel.
A kind of 8. outer lock construction of expansion link according to claim 3, it is characterised in that described lock（4）Inner end is set
There is the outer shoulder of a circle anti-avulsion（45）, described lock tube（3）Inner end contact shoulder outside the anti-avulsion（45）On.
A kind of 9. outer lock construction of expansion link according to claim 1, it is characterised in that multiple described shell fragments（41）With
Curved portions（42）It is collectively forming the cross section of plum blossom-shaped.
A kind of 10. outer lock construction of expansion link according to claim 1, it is characterised in that described outer bar（1）, interior bar
（2）, lock tube（3）And lock（4）On same axial line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720523560.4U CN206874609U (en) | 2017-05-12 | 2017-05-12 | A kind of outer lock construction of expansion link |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720523560.4U CN206874609U (en) | 2017-05-12 | 2017-05-12 | A kind of outer lock construction of expansion link |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206874609U true CN206874609U (en) | 2018-01-12 |
Family
ID=61339035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720523560.4U Expired - Fee Related CN206874609U (en) | 2017-05-12 | 2017-05-12 | A kind of outer lock construction of expansion link |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206874609U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043003A (en) * | 2019-04-25 | 2019-07-23 | 江苏宅创建筑科技有限公司 | A kind of keel and the novel leveling lower margin of plate |
| CN110118541A (en) * | 2018-02-07 | 2019-08-13 | 北新集团建材股份有限公司 | Board measure platform |
| CN110290355A (en) * | 2019-07-24 | 2019-09-27 | 国网河北省电力有限公司邢台供电分公司 | A kind of high-altitude count table observation cleaning plant and observation method for cleaning |
| CN111802112A (en) * | 2020-08-14 | 2020-10-23 | 章伟平 | Coaxial scalable high altitude electric saw |
| CN112190109A (en) * | 2020-10-09 | 2021-01-08 | 抚州市王冠实业有限公司 | Curtain rod with self-locking function |
| CN114215831A (en) * | 2021-12-14 | 2022-03-22 | 中国水利水电第五工程局有限公司 | Municipal works topography survey and drawing sighting rod |
-
2017
- 2017-05-12 CN CN201720523560.4U patent/CN206874609U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110118541A (en) * | 2018-02-07 | 2019-08-13 | 北新集团建材股份有限公司 | Board measure platform |
| CN110043003A (en) * | 2019-04-25 | 2019-07-23 | 江苏宅创建筑科技有限公司 | A kind of keel and the novel leveling lower margin of plate |
| CN110290355A (en) * | 2019-07-24 | 2019-09-27 | 国网河北省电力有限公司邢台供电分公司 | A kind of high-altitude count table observation cleaning plant and observation method for cleaning |
| CN110290355B (en) * | 2019-07-24 | 2021-05-18 | 国网河北省电力有限公司邢台供电分公司 | High altitude count table is surveyd cleaning device |
| CN111802112A (en) * | 2020-08-14 | 2020-10-23 | 章伟平 | Coaxial scalable high altitude electric saw |
| CN112190109A (en) * | 2020-10-09 | 2021-01-08 | 抚州市王冠实业有限公司 | Curtain rod with self-locking function |
| CN112190109B (en) * | 2020-10-09 | 2021-12-21 | 抚州市王冠实业有限公司 | Curtain rod with self-locking function |
| CN114215831A (en) * | 2021-12-14 | 2022-03-22 | 中国水利水电第五工程局有限公司 | Municipal works topography survey and drawing sighting rod |
| CN114215831B (en) * | 2021-12-14 | 2024-02-20 | 中国水利水电第五工程局有限公司 | Municipal works topography survey and drawing is with survey and drawing mark post |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180112 Termination date: 20200512 |