CN203430934U - Support locking mechanism - Google Patents
Support locking mechanism Download PDFInfo
- Publication number
- CN203430934U CN203430934U CN201320420393.2U CN201320420393U CN203430934U CN 203430934 U CN203430934 U CN 203430934U CN 201320420393 U CN201320420393 U CN 201320420393U CN 203430934 U CN203430934 U CN 203430934U
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- CN
- China
- Prior art keywords
- breach
- locking mechanism
- cam spanner
- inner tube
- camming surface
- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a support locking mechanism. The support locking mechanism comprises a connecting cover and a cam wrench, wherein an inner pipe penetrates through the connecting cover and extends into an outer pipe, the connecting cover is provided with a gap, the cam wrench extends into the gap and is movably connected with the connecting cover through a hinge pin, a gear rack is arranged on the inner pipe, and gear teeth are arranged on a cam surface on the side, close to the inner pipe, of the cam wrench. When the cam wrench is pressed in the gap and the cam surface is closely attached to the inner pipe, the gear teeth are meshed with the gear rack. The support locking mechanism has the advantages that while the cam wrench is tightly pressed, the meshing structure of the gear teeth and the gear rack can play an effective role in fixing the inner pipe, and therefore the situation that the inner pipe overcomes friction to move under the action of gravity or elastic force is prevented.
Description
Technical field
The utility model relates to a kind of locking mechanism, especially relates to a kind of locking mechanism of support.
Background technique
Existing sound box bracket generally comprises supporting base, is fixed on the outer tube on supporting base and inserts the inner tube in outer tube, and supporting base generally comprises the leg of pedestal and a plurality of tubuloses, and outer tube passes pedestal and is fixedly connected with pedestal, and pneumatic spring is installed in outer tube.Outer tube is connected with inner tube by a locking mechanism, locking mechanism comprises connecting sleeve, cam spanner and bearing pin, the bottom of connecting sleeve is enclosed within on outer tube, and the top of connecting sleeve is positioned at inner tube outside, and cam spanner is flexibly connected with connecting sleeve between inner tube and connecting sleeve and by bearing pin.The working principle of this structure is: pull cam spanner, camming surface and the inner tube of cam spanner are compressed, by frictional force, realize the fixing of inner tube, cam spanner is unclamped, between cam spanner and inner tube, no longer include frictional force effect, thereby regulate the height of sound box bracket.But, by cam spanner, compress the fixation realizing also insecure, under the effect of pneumatic spring, easily make inner tube loosening, especially, after long-term use, locking mechanism produces and weares and teares, and is difficult to the effect that reaches fixing.
Summary of the invention
Technical problem to be solved in the utility model is to provide the locking mechanism of the better support of a kind of fixed effect.
The utility model solves the problems of the technologies described above adopted technological scheme: a kind of locking mechanism of support, comprise connecting sleeve and cam spanner, inner tube extend in outer tube through described connecting sleeve, on described connecting sleeve, there is breach, described cam spanner stretches in described breach and is flexibly connected with described connecting sleeve by bearing pin, in described inner tube, be provided with tooth bar, on the camming surface of described cam spanner near described inner tube one side, be provided with the gear teeth, when described cam spanner is pressed into described breach, when described camming surface and described inner tube are close to, the described gear teeth and the engagement of described tooth bar.
In described inner tube, be provided with tube seat, described tooth bar is arranged in described tube seat.
The bearing of trend of described tooth bar is the bearing of trend of described inner tube, region one on described camming surface is provided with the described gear teeth, region two on described camming surface keeps smooth, when described cam spanner is pressed into described breach, the tooth bar engagement that the described gear teeth on described region one are described with part, the region two on described camming surface is pressed on described tooth bar.
Described region one is positioned at the neutral position of described camming surface, and described region two comprises the two ends of described camming surface.
Described connecting sleeve comprises top cover, overcoat and neck bush, and the lower end of described neck bush is enclosed within on described outer tube and is fixedly connected with described outer tube, and described overcoat is enclosed within the outside of described neck bush, and described top cover covers the upper end at described overcoat.
When described cam spanner is pressed into described breach, the outer side wall of described overcoat and described cam spanner forms the cylindrical shape that a waist shrinks.
Described breach comprises the second breach on the neck bush described in being arranged on described outer the first breach putting and being arranged on, and described cam spanner passes the first described breach and is flexibly connected with described neck bush.
The lower end of described outer tube is provided with pneumatic mechanism.
Compared with prior art, the utility model has the advantage of and in inner tube, be provided with tooth bar, on the camming surface of cam spanner near inner tube one side, be provided with the gear teeth, when cam spanner is pressed into breach, when camming surface and inner tube are close to, the gear teeth and tooth bar engagement, when the camming surface of cam spanner compresses inner tube, the structure of the gear teeth and tooth bar engagement can play effective fixation to inner tube, prevents that inner tube overcome friction under the effect of gravity or elastic force from producing mobile;
In inner tube, be provided with tube seat, when tooth bar is arranged in tube seat, user can easily change the tooth bar in inner tube, prevents from causing support to be fixed due to the damage of tooth bar;
When the bearing of trend of the tooth bar bearing of trend that is inner tube, region one on camming surface is provided with the gear teeth, region two on camming surface keeps smooth, when cam spanner is pressed into breach, the gear teeth on region one and the engagement of part tooth bar, region two on camming surface is pressed on tooth bar, and the cam spanner of being so close to and inner tube reach fixing effect by frictional force, and the structure of the gear teeth and tooth bar engagement makes support more firm simultaneously;
When region one is positioned at the neutral position of camming surface, when region two comprises the two ends of camming surface, cam spanner is mainly fixed inner tube by frictional force, and the structure of the gear teeth and tooth bar engagement is auxiliary simultaneously, makes locking framework more firm;
When cam spanner is pressed into breach, the outer side wall of overcoat and cam spanner forms the cylindrical shape that a waist shrinks, connecting sleeve regular shape now, and feel is better.
Accompanying drawing explanation
Fig. 1 is explosive view of the present utility model;
Fig. 2 is stereogram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
Embodiment: as shown in the figure, a locking mechanism for support, comprises connecting sleeve and cam spanner 1, and inner tube 2 extend in outer tube 3 through connecting sleeve, on connecting sleeve, there is breach, cam spanner 1 stretches in breach and is flexibly connected with connecting sleeve by bearing pin 4, is provided with tube seat 5 in inner tube 2, and tooth bar 6 is arranged in tube seat 5, on the camming surface of cam spanner 1 near inner tube 2 one sides, be provided with the gear teeth, when cam spanner 1 is pressed into breach, when camming surface and inner tube 2 are close to, the gear teeth and tooth bar 6 engagements.
In the present embodiment, the bearing of trend of tooth bar 6 is the bearing of trend of inner tube 2, region 1 on camming surface is provided with the gear teeth, region 28 on camming surface keeps smooth, region 1 is positioned at the neutral position of camming surface, and region 28 comprises the two ends of camming surface, when cam spanner 1 is pressed into breach, the gear teeth on region 1 and 6 engagements of part tooth bar, the region 28 on camming surface is pressed on tooth bar 6.
In the present embodiment, connecting sleeve comprises top cover 9, overcoat 10 and neck bush 11, and the lower end of neck bush 11 is enclosed within on outer tube 3 and with outer tube 3 and is fixedly connected with, and overcoat 10 is enclosed within the outside of neck bush 11, and top cover 9 covers the upper end at overcoat 10.
In the present embodiment, when cam spanner 1 is pressed into breach, overcoat 10 forms with the outer side wall of cam spanner 1 cylindrical shape that a waist shrinks.
In the present embodiment, breach comprises and is arranged on the first breach 12 on overcoat 10 and is arranged on the second breach 13 on neck bush 11, and cam spanner 1 is through the first breach and be flexibly connected with neck bush 11.
In the present embodiment, the lower end of outer tube 3 is provided with spring.
During use, cam spanner 1 is pressed in breach, cam spanner 1 coincide with breach, the gear teeth and tooth bar 6 engagements, when cam spanner 1 compresses, the structure of the gear teeth and tooth bar 6 engagements can play effective fixation to inner tube 3, prevents that inner tube 3 overcome friction under the effect of gravity or elastic force from producing mobile.
Claims (8)
1. the locking mechanism of a support, comprise connecting sleeve and cam spanner, inner tube extend in outer tube through described connecting sleeve, on described connecting sleeve, there is breach, described cam spanner stretches in described breach and is flexibly connected with described connecting sleeve by bearing pin, it is characterized in that being provided with tooth bar in described inner tube, on the camming surface of described cam spanner near described inner tube one side, be provided with the gear teeth, when described cam spanner is pressed into described breach, when described camming surface and described inner tube are close to, the described gear teeth and the engagement of described tooth bar.
2. according to the locking mechanism of a kind of support claimed in claim 1, it is characterized in that being provided with tube seat in described inner tube, described tooth bar is arranged in described tube seat.
3. according to the locking mechanism of a kind of support claimed in claim 1, the bearing of trend that it is characterized in that described tooth bar is the bearing of trend of described inner tube, region one on described camming surface is provided with the described gear teeth, region two on described camming surface keeps smooth, when described cam spanner is pressed into described breach, the tooth bar engagement that the described gear teeth on described region one are described with part, the region two on described camming surface is pressed on described tooth bar.
4. according to the locking mechanism of a kind of support claimed in claim 3, it is characterized in that described region one is positioned at the neutral position of described camming surface, described region two comprises the two ends of described camming surface.
5. according to the locking mechanism of a kind of support claimed in claim 1, it is characterized in that described connecting sleeve comprises top cover, overcoat and neck bush, the lower end of described neck bush is enclosed within on described outer tube and is fixedly connected with described outer tube, described overcoat is enclosed within the outside of described neck bush, and described top cover covers the upper end at described overcoat.
6. according to the locking mechanism of a kind of support claimed in claim 5, it is characterized in that, when described cam spanner is pressed into described breach, the outer side wall of described overcoat and described cam spanner forms the cylindrical shape that a waist shrinks.
7. according to the locking mechanism of a kind of support claimed in claim 6, it is characterized in that described breach comprises the second breach on the neck bush described in being arranged on described outer the first breach putting and being arranged on, described cam spanner passes the first described breach and is flexibly connected with described neck bush.
8. according to the locking mechanism of a kind of support claimed in claim 7, it is characterized in that the lower end of described outer tube is provided with pneumatic mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320420393.2U CN203430934U (en) | 2013-07-12 | 2013-07-12 | Support locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320420393.2U CN203430934U (en) | 2013-07-12 | 2013-07-12 | Support locking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203430934U true CN203430934U (en) | 2014-02-12 |
Family
ID=50059974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320420393.2U Expired - Lifetime CN203430934U (en) | 2013-07-12 | 2013-07-12 | Support locking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203430934U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952745A (en) * | 2016-07-06 | 2016-09-21 | 小丑鱼（上海）实业有限公司 | Connecting piece for inserted pipes and inserted pipe assembly |
-
2013
- 2013-07-12 CN CN201320420393.2U patent/CN203430934U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952745A (en) * | 2016-07-06 | 2016-09-21 | 小丑鱼（上海）实业有限公司 | Connecting piece for inserted pipes and inserted pipe assembly |
| CN105952745B (en) * | 2016-07-06 | 2018-06-29 | 小丑鱼（上海）实业有限公司 | For the connector of insertion pipe and grafting tube assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 315105 Yinzhou District credit Road, Ningbo, Ningbo, Zhejiang Patentee after: SOUNDKING ELECTRONICS&SOUND Co.,Ltd. Address before: 315104 Zhejiang province Ningbo Yinzhou investment and entrepreneurship center 818 integrity Road Patentee before: NINGBO SOUNDKING ELECTRONIC Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Ningbo Boyue Video Technology Co.,Ltd. Assignor: SOUNDKING ELECTRONICS&SOUND Co.,Ltd. Contract record no.: X2021330000145 Denomination of utility model: A locking mechanism of support Granted publication date: 20140212 License type: Common License Record date: 20210826 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140212 |
|
| CX01 | Expiry of patent term |