CN205977938U - Retractor device - Google Patents
Retractor device Download PDFInfo
- Publication number
- CN205977938U CN205977938U CN201620699343.6U CN201620699343U CN205977938U CN 205977938 U CN205977938 U CN 205977938U CN 201620699343 U CN201620699343 U CN 201620699343U CN 205977938 U CN205977938 U CN 205977938U
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- China
- Prior art keywords
- inner tube
- lock sleeve
- adapter sleeve
- sleeve
- retractor device
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Abstract
The utility model discloses a retractor device, the female joint comprises an outer pipe, inner tube and adapter sleeve, the upper end of inner tube is stretched into in the outer tube, the upper portion of adapter sleeve and the lower extreme fixed connection of outer tube, install the lock sleeve of a suit on the inner tube in the lower part of adapter sleeve, the lock sleeve is provided with axial opening, the outer wall of lock sleeve is provided with toper portion, be provided with the structure of splining between inner tube and the lock sleeve, when rotating the inner tube, screw thread between adapter sleeve and the lock sleeve makes the lock sleeve produce axial displacement, the toper portion of the inner wall extrusion lock sleeve of adapter sleeve, make the lock sleeve to axle center shrink locking inner tube, it just can realize locking or loosen to rotate the inner tube, retractor device between outer tube and the inner tube is located the lower extreme of outer tube, there is not longer gap section between the lower extreme of outer tube and inner tube, can not rock between locking back outer tube and the inner tube, foot pipe locking reinforce, high in stability, the operation is easy and rapid, can effectively improve the stability of product.
Description
Technical field
The utility model is related to a kind of photographic goods, the foot tube retractor device of particularly a kind of tripod.
Background technology
The retractor devices such as tripod of the prior art, self-shooting bar and prop stand substantially have eccentric pipe locking and screw-threaded coupling
Two kinds, eccentric pipe retractor device easily loosens, and stability is not strong.Current screw telescopic device is as shown in figure 1, include outer tube A
With inner tube B, adapter sleeve C and locking conehead E is installed between outer tube A and inner tube B, adapter sleeve C is broken ring, and adapter sleeve C's is interior
The outer wall of wall and locking conehead E is provided with corresponding screw thread, is provided with gear ring D in the lower end of outer tube A, and adapter sleeve C can be
Slide axially in outer tube A and can not circumferentially rotate, locking conehead E is fixedly connected with the upper end of inner tube B, locks conehead E and inner tube B
Between relatively unrotatable, rotate inner tube B drive locking conehead E rotate, adapter sleeve C and locking conehead E between screw thread cooperation
Adapter sleeve C is made relatively to lock conehead E axial movement, the taper surface between adapter sleeve C and locking conehead E makes outer tube A and inner tube B lock
Fasten, on the one hand, this retractor device has a certain distance apart from the lower end of outer tube A, from lower end and inner tube B of outer tube A
Between there is longer gap section, the amplitude rocked between locking rear foot tube is larger, leads to the less stable of tripod, another
Aspect, adapter sleeve C relies on the inside of support outer tube to fix, and easily skids, coupling mechanism force is inadequate.
Content of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of structure simple, the strong retractor device of stability.
The utility model solves its technical problem and be employed technical scheme comprise that：
A kind of retractor device, including outer tube, inner tube and adapter sleeve, the upper end of said inner tube is stretched in described outer tube, described
The top of adapter sleeve is fixedly connected with the lower end of described outer tube, is provided with one and is sleeved on said inner tube in the bottom of described adapter sleeve
On lock sleeve, described lock sleeve is provided with axial opening, and the inwall of described adapter sleeve is provided with internal thread, described lock sleeve
Outer wall be provided with external screw thread, the outer wall of described lock sleeve is provided with tapered portion, between said inner tube and described lock sleeve arrange
There is spline structure.
The face that the inwall of described adapter sleeve is contacted with described tapered portion be inclined-plane, the inclined-plane of described adapter sleeve inwall with described
The incline direction of tapered portion is identical.
The top and bottom of described lock sleeve are respectively arranged with upper limit ring and lower limit ring, and the inwall of described adapter sleeve sets
Be equipped with respectively with described upper limit ring and lower limit ring corresponding upper limit groove and lower limit step.
The top of described adapter sleeve is provided with interior connection screw thread, and the lower end outer wall of described outer tube is provided with outer connection screw thread,
Threaded by interior connection screw thread and outer connection screw thread between described adapter sleeve and outer tube.
Described tapered portion is formed by the taper surface between described upper limit ring and lower limit ring, and described external screw thread is arranged on institute
State in tapered portion.
The bottom outer wall of described lock sleeve is the face of cylinder, and external wall of upper portion is taper surface, and described tapered portion is by described lock sleeve
The taper surface of external wall of upper portion is formed, and described external screw thread is arranged on the face of cylinder of described lock sleeve bottom.
Described tapered portion is provided with some breach.
The rotation stop groove of said inner tube, the inwall of described lock sleeve is provided with the rotation stop bar in embedded described rotation stop groove,
Described spline structure is cooperatively formed between described rotation stop groove and rotation stop bar.
Between the inwall of described outer tube and the outer wall of inner tube, pad is installed.
The beneficial effects of the utility model are：Retractor device between outer tube of the present utility model and inner tube is located at outer tube
, there is not longer gap section between the lower end of outer tube and inner tube, will not rock between outer tube and inner tube after locking, pin in lower end
Pipe coupling mechanism force is strong, and stability is high, simple and quick, can effectively improve the stability of product.
Brief description
With reference to the accompanying drawings and examples the utility model is further illustrated.
Fig. 1 is foot tube retractor device sectional view of the prior art；
Fig. 2 is the first embodiment partial sectional view of the present utility model；
Fig. 3 is the exploded view of retractor device described in Fig. 1；
Fig. 4 is that the axle of retractor device described in Fig. 1 cuts open figure；
Fig. 5 is second embodiment partial sectional view of the present utility model；
Fig. 6 is the exploded view of retractor device described in Fig. 5；
Fig. 7 is that the axle of retractor device described in Fig. 5 cuts open figure；
Fig. 8 is the first embodiment sectional view of inner tube；
Fig. 9 is the second embodiment sectional view of inner tube；
Figure 10 is the third embodiment sectional view of inner tube；
Figure 11 is the 4th kind of embodiment sectional view of inner tube；
Figure 12 is the tripod schematic diagram using the utility model retractor device；
Figure 13 is the self-shooting bar or prop stand structural representation using the utility model retractor device.
Specific embodiment
Referring to figs. 1 to Figure 13, a kind of retractor device, including outer tube 1, inner tube 2 and adapter sleeve 3, the upper end of said inner tube 2 is stretched
Enter in described outer tube 1, the top of described adapter sleeve 3 is fixedly connected with the lower end of described outer tube 1, in the bottom of described adapter sleeve 3
One lock sleeve 4 being sleeved in said inner tube 2 is installed, described lock sleeve 4 is provided with axial opening 5 and forms it into C-shaped
Broken ring, the inwall of described adapter sleeve 3 is provided with internal thread 6, and the outer wall of described lock sleeve 4 is provided with external screw thread 7, described locking
The outer wall of set 4 is provided with tapered portion 8, is provided with spline structure between said inner tube 2 and described lock sleeve 4, and spline structure stops
Relative between inner tube 2 and lock sleeve 4 circumferentially rotate, make can only move axially between inner tube 2 and lock sleeve 4.
The face that the inwall of described adapter sleeve 3 is contacted with described tapered portion 8 be inclined-plane, the inclined-plane of described adapter sleeve 3 inwall with
The incline direction of described tapered portion 8 is identical, it is possible to reduce the taper of adapter sleeve 3, connects relatively reliable.
The top and bottom of described lock sleeve 4 are respectively arranged with upper limit ring 9 and lower limit ring 10, described adapter sleeve 3
Inwall be provided with respectively with described upper limit ring 9 and the corresponding upper limit groove 11 of lower limit ring 10 and lower limit step 12, on
Spacing ring 9 slides axially in upper limit groove 11, and lower limit step 12 blocks lower limit ring 10, prevents lock sleeve 4 from departing from even
Female connector 3.
The top of described adapter sleeve 3 is provided with interior connection screw thread 13, and the lower end outer wall of described outer tube 1 is provided with outer connection spiral shell
Line 14, threaded by interior connection screw thread 13 and outer connection screw thread 14 between described adapter sleeve 3 and outer tube 1, structure is simple, even
Connect reliability.
Lock sleeve 4 has two kinds of embodiments, and, referring to Fig. 2 to Fig. 4, described tapered portion 8 is by described for the first embodiment
Taper surface between spacing ring 9 and lower limit ring 10 is formed, and described external screw thread 7 is arranged in described tapered portion 8.Second is implemented
Referring to Fig. 5 to Fig. 7, the bottom outer wall of described lock sleeve 4 is the face of cylinder to mode, and external wall of upper portion is taper surface, described tapered portion 8 by
The taper surface of described lock sleeve 4 external wall of upper portion is formed, and described external screw thread 7 is arranged on the face of cylinder of described lock sleeve 4 bottom, right
In second structure, suitably some breach 17 are set in described tapered portion 8, make tapered portion 8 form elastic card claw structure, locking is more
Plus it is reliable.
Spline structure can have a variety of embodiments, and the first embodiment is the section of inner tube 2 is cylinder, in institute
State the rotation stop groove 15 of inner tube 2, the inwall of described lock sleeve 4 be provided with the rotation stop bar 16 in embedded described rotation stop groove 15,
Described spline structure is cooperatively formed, groove 15 can be as shown in Figure 8 one between described rotation stop groove 15 and rotation stop bar 16
Bar or as shown in Figure 9 two, can also be as shown in Figure 10 a plurality of etc..Second embodiment is inner tube 2
Section is not cylindrical, can be polygon as shown in figure 11 or square etc., ellipse etc., all can make inner tube 2
Can only move axially and lock sleeve 4 between and can not circumferentially rotate.
Pad 18 is installed between the inwall of described outer tube 1 and the outer wall of inner tube 2, pad 18 is working of plastics, in inner tube 2
Setting radial hole, is provided with connecting post, in connecting post insertion radial hole, pad 18 is sliding in outer tube 1 with inner tube 2 on pad 18
Dynamic, on the one hand make between the outer wall of outer tube 1 and the inwall of inner tube 2 will not directly contact, when reduction foot tube can be had to shrink or pull out
Noise, be on the other hand to play positioning action, prevent inner tube to be drawn out of disengaging.
Retractor device of the present utility model can make tripod telescoping foot pipe as shown in figure 12 or as shown in fig. 13 that
Prop stand or self-shooting bar, during use, rotate inner tube 2 and drive lock sleeve 4 to rotate, internal thread 6 and external screw thread 7 cooperation make lock sleeve 4
Axially upwardly move, the inwall of adapter sleeve 3 extrudes the tapered portion 8 of lock sleeve 4, so that the tapered portion 8 of lock sleeve 4 is shunk to axle center and embrace
Tight inner tube, when rotating backward inner tube 2, the inwall of adapter sleeve 3 discharges the tapered portion 8 of lock sleeve 4, and lock sleeve 4 elastic reaction is natural
Restore, discharge inner tube 2, inner tube can be with up and down.Because the retractor device between outer tube and inner tube is located at the lower end of outer tube,
There is not longer gap section between the lower end of outer tube and inner tube, will not rock between outer tube and inner tube after locking, foot tube is locked
Clamp force is strong, and stability is high, simple and quick, can effectively improve the stability of product.
Claims (9)
1. a kind of retractor device, including outer tube（1）Stretch into described outer tube with upper end（1）Interior inner tube（2）It is characterised in that it is also
Including an adapter sleeve（3）, described adapter sleeve（3）Top and described outer tube（1）Lower end be fixedly connected, described adapter sleeve（3）
Bottom in be provided with one and be sleeved on said inner tube（2）On lock sleeve（4）, described lock sleeve（4）It is provided with axial opening
（5）, described adapter sleeve（3）Inwall be provided with internal thread（6）, described lock sleeve（4）Outer wall be provided with external screw thread（7）, institute
State lock sleeve（4）Outer wall be provided with tapered portion（8）, said inner tube（2）With described lock sleeve（4）Between be provided with rotation stop knot
Structure.
2. retractor device according to claim 1 is it is characterised in that described adapter sleeve（3）Inwall and described tapered portion
（8）The face of contact is inclined-plane, described adapter sleeve（3）The inclined-plane of inwall and described tapered portion（8）Incline direction identical.
3. retractor device according to claim 1 and 2 is it is characterised in that described lock sleeve（4）Top and bottom respectively
It is provided with upper limit ring（9）With lower limit ring（10）, described adapter sleeve（3）Inwall be provided with respectively with described upper limit ring
（9）With lower limit ring（10）Corresponding upper limit groove（11）With lower limit step（12）.
4. retractor device according to claim 1 and 2 is it is characterised in that described adapter sleeve（3）Top be provided with interior company
Connect screw thread（13）, described outer tube（1）Lower end outer wall be provided with outer connection screw thread（14）, described adapter sleeve（3）And outer tube（1）It
Between by interior connection screw thread（13）With outer connection screw thread（14）Threaded.
5. retractor device according to claim 4 is it is characterised in that described tapered portion（8）By described upper limit ring（9）With
Lower limit ring（10）Between taper surface formed, described external screw thread（7）It is arranged on described tapered portion（8）On.
6. retractor device according to claim 2 is it is characterised in that described lock sleeve（4）Bottom outer wall be the face of cylinder,
External wall of upper portion is taper surface, described tapered portion（8）By described lock sleeve（4）The taper surface of external wall of upper portion is formed, described external screw thread
（7）It is arranged on described lock sleeve（4）On the face of cylinder of bottom.
7. retractor device according to claim 6 is it is characterised in that described tapered portion（8）It is provided with some breach（17）.
8. retractor device according to claim 1 is it is characterised in that said inner tube（2）Rotation stop groove（15）, described lock
Tight set（4）Inwall be provided with embedded described rotation stop groove（15）Interior rotation stop bar（16）, described rotation stop groove（15）And rotation stop
Bar（16）Between cooperatively form described spline structure.
9. retractor device according to claim 8 is it is characterised in that described outer tube（1）Inwall and inner tube（2）Outer wall
Between pad is installed（18）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620699343.6U CN205977938U (en) | 2016-07-05 | 2016-07-05 | Retractor device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620699343.6U CN205977938U (en) | 2016-07-05 | 2016-07-05 | Retractor device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205977938U true CN205977938U (en) | 2017-02-22 |
Family
ID=58023299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620699343.6U Active CN205977938U (en) | 2016-07-05 | 2016-07-05 | Retractor device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205977938U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952747A (en) * | 2016-07-05 | 2016-09-21 | 张奉果 | Telescopic device |
| CN110424681A (en) * | 2019-07-05 | 2019-11-08 | 云和县恒毅模具厂 | A kind of structure glue helps viscous molding machine |
| CN114541389A (en) * | 2022-03-22 | 2022-05-27 | 北京市地质工程有限责任公司 | Retaining wall structure of manual hole digging pile and construction method thereof |
-
2016
- 2016-07-05 CN CN201620699343.6U patent/CN205977938U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952747A (en) * | 2016-07-05 | 2016-09-21 | 张奉果 | Telescopic device |
| CN110424681A (en) * | 2019-07-05 | 2019-11-08 | 云和县恒毅模具厂 | A kind of structure glue helps viscous molding machine |
| CN114541389A (en) * | 2022-03-22 | 2022-05-27 | 北京市地质工程有限责任公司 | Retaining wall structure of manual hole digging pile and construction method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |