CN202468734U - Coupler - Google Patents
Coupler Download PDFInfo
- Publication number
- CN202468734U CN202468734U CN2012200875851U CN201220087585U CN202468734U CN 202468734 U CN202468734 U CN 202468734U CN 2012200875851 U CN2012200875851 U CN 2012200875851U CN 201220087585 U CN201220087585 U CN 201220087585U CN 202468734 U CN202468734 U CN 202468734U
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- CN
- China
- Prior art keywords
- cover body
- lower cover
- semi
- upper cover
- fastening piece
- 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 - Fee Related
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Abstract
The utility model relates to a coupling device, in particular to a coupler which comprises an upper cover body, a lower cover body and a fastening piece. The upper cover body and the lower cover body are fixedly connected by the fastening piece; an axial semi-circular groove is arranged in the central axis of the upper cover body; the top end of the semi-circular groove is provided with an axial bulge; another axial semi-circular groove is arranged in the central axis of the lower cover body; the diameter of the semi-circular groove of the upper cover body is equal to that of the semi-circular groove of the lower cover body; convex and concave strip-shaped surfaces which are mutually matched are arranged on the matched surface of the upper cover body and the lower cover body; and at least two pairs of fastening piece installation holes which are mutually corresponding are arranged on the upper cover body and the lower cover body. The utility model provides the coupler with a simple structure and a good fixing effect.
Description
Technical field
The utility model relates to a kind of coupling arrangement, particularly relates to a kind of coupling.
Background technique
The three surface-turning advertising placard that uses in the market; Mostly book size is bigger, need couple together with many three surface-turning advertising placard transmission shafts, but common hitch bar is because fixation stability property is bad; Nonsynchronous phenomenon can appear in rotating process; Cause in the billboard image turning process not smoothly, cause the advertisement picture entanglement, therefore in the process of three surface-turning advertising placard image turning; The synchronization problem of three surface-turning advertising placard transmission shaft is the subject matter that is related to three surface-turning advertising placard upset quality.
Summary of the invention
In order to solve the asynchronous problem of three surface-turning advertising placard transmission shaft in rotation process, it is a kind of simple in structure that the utility model provides, the coupling of good fixing effect.
The technological scheme of the utility model is:
A kind of coupling; Comprise upper cover body, lower cover and fastening piece are fixedly connected by fastening piece between upper cover body and the lower cover; Have an axial semi-circular recesses on the medial axis of upper cover body; The semi-circular recesses top is provided with an axial projection, has an axial semi-circular recesses on the medial axis of lower cover, and the diameter of lower cover semi-circular recesses equates with the diameter of lower cover semi-circular recesses; The fitting surface of upper cover body and lower cover is provided with the convex-concave bar shaped face of mutual coupling, and the two ends of upper cover body and lower cover are provided with at least two pairs of corresponding fastening piece mounting holes.
The axial raised cross section on said semi-circular recesses top is approximate rectangular, perhaps is circular arc, perhaps is triangle, perhaps is trapezoidal.
The material of coupling is aluminum alloy or is steel.
Coupling can be cuboid, perhaps is the approximate circle cylinder, perhaps is approximate positive hexagonal prism.
Described approximate circle cylinder, the two ends of approximate positive hexagonal prism respectively have a fastening piece attachment face, and the fastening piece attachment face is provided with at least two pairs of corresponding fastening piece mounting holes.
The beneficial effect of the utility model is:
1. this practical coupler structure is simple, and being closely cooperated mutually by two lids up and down connects the three surface-turning advertising placard transmission shaft, and effect is more stable, can effectively avoid the fixedly nonsynchronous problem of transmission shaft that causes of imprecision of Yin Putong coupling.
2. the utility model adopts aluminum alloy material, and is cheap, can change effective saving cost, increases economic efficiency.
3. the utility model structural stability is made simply, is fit to produce in enormous quantities.
Description of drawings
Fig. 1 faces one of structural representation for the utility model coupling;
Fig. 2 is Fig. 1 plan structure schematic representation;
Fig. 3 is the structural representation of the utility model upper cover body;
Fig. 4 is the structural representation of the utility model lower cover;
Fig. 5 faces two of structural representation for the utility model coupling;
Fig. 6 faces three of structural representation for the utility model coupling.
Embodiment
Embodiment 1: referring to Fig. 1, and Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, label 1 is a screw among the figure, and 2 is upper cover body, and 3 is lower cover, and 4 is coupling, and 5 is the fastening piece mounting hole, and 6 is the convexity in the upper cover body semi-circular recesses.
A kind of coupling is shaped as cuboid, comprises upper cover body 2; Lower cover 3 and screw 1 are used to the two adjacent three surface-turning advertising placard coupling that are connected and fixed, and upper cover body 2 is axially symmetrical with lower cover 3; Be fixedly connected by screw 1 between upper cover body 2 and the lower cover 3, have an axial semi-circular recesses on the medial axis of upper cover body 2, upper cover body semi-circular recesses top is provided with an axial projection 6; Protruding cross section is approximate rectangular; Perhaps being circular arc, perhaps is triangle, perhaps is trapezoidal; Have an axial semi-circular recesses on the medial axis of lower cover 3; The diameter of lower cover semi-circular recesses equates that with the diameter of lower cover semi-circular recesses the diameter of upper cover body semi-circular recesses and lower cover semi-circular recesses and the diameter of three surface-turning advertising placard transmission shaft are complementary, and the upper cover body semi-circular recesses has crowning and the concave surface that cooperatively interacts with the both sides of following capping semi-circular recesses; Upper cover body and lower cover are provided with at least two pairs of corresponding each other tapped through holes 5, and the material of coupling is aluminum alloy or is steel.
Embodiment 2: referring to shown in Figure 5, among the figure among label and the embodiment 1 meaning of identical label representative identical, no longer repeat with part identical among the embodiment 1, noly be: coupling be shaped as the approximate circle cylinder.
Embodiment 3: referring to shown in Figure 5, among the figure among label and the embodiment 1 meaning of identical label representative identical, no longer repeat with part identical among the embodiment 1, noly be: coupling be shaped as approximate hexagonal prism.
Claims (5)
1. coupling; Comprise upper cover body, lower cover and fastening piece is characterized in that: be fixedly connected by fastening piece between upper cover body and the lower cover; Have an axial semi-circular recesses on the medial axis of upper cover body; The semi-circular recesses top is provided with an axial projection, has an axial semi-circular recesses on the medial axis of lower cover, and the diameter of lower cover semi-circular recesses equates with the diameter of lower cover semi-circular recesses; The fitting surface of upper cover body and lower cover is provided with the convex-concave bar shaped face of mutual coupling, and the two ends of upper cover body and lower cover are provided with at least two pairs of corresponding fastening piece mounting holes.
2.. coupling according to claim 1 is characterized in that: the axial raised cross section on said semi-circular recesses top is approximate rectangular, perhaps is circular arc, perhaps is triangle, perhaps is trapezoidal.
3. coupling according to claim 1 is characterized in that: the material of coupling is aluminum alloy or is steel.
4. coupling according to claim 1 is characterized in that: said coupling can be cuboid, perhaps is the approximate circle cylinder, perhaps is approximate positive hexagonal prism.
5. coupling according to claim 4 is characterized in that: described approximate circle cylinder, and the two ends of approximate positive hexagonal prism respectively have a fastening piece attachment face, and the fastening piece attachment face is provided with at least two pairs of corresponding fastening piece mounting holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200875851U CN202468734U (en) | 2012-03-10 | 2012-03-10 | Coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200875851U CN202468734U (en) | 2012-03-10 | 2012-03-10 | Coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202468734U true CN202468734U (en) | 2012-10-03 |
Family
ID=46916893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200875851U Expired - Fee Related CN202468734U (en) | 2012-03-10 | 2012-03-10 | Coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202468734U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109900237A (en) * | 2017-12-11 | 2019-06-18 | 上海岩土工程勘察设计研究院有限公司 | A kind of more piece steel reinforcement cage ground wall deviational survey pipe connection and installation method |
-
2012
- 2012-03-10 CN CN2012200875851U patent/CN202468734U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109900237A (en) * | 2017-12-11 | 2019-06-18 | 上海岩土工程勘察设计研究院有限公司 | A kind of more piece steel reinforcement cage ground wall deviational survey pipe connection and installation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20150310 |
|
| EXPY | Termination of patent right or utility model |