CN202584037U - Pollution-prevention trackball - Google Patents
Pollution-prevention trackball Download PDFInfo
- Publication number
- CN202584037U CN202584037U CN 201220084438 CN201220084438U CN202584037U CN 202584037 U CN202584037 U CN 202584037U CN 201220084438 CN201220084438 CN 201220084438 CN 201220084438 U CN201220084438 U CN 201220084438U CN 202584037 U CN202584037 U CN 202584037U
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- Prior art keywords
- trace ball
- pollution
- utility
- model
- hole
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Abstract
The utility model discloses a pollution-prevention trackball which comprises an upper cover and a lower cover, wherein the upper cover has a hole, a ball body is arranged in the hole, a fixed cover is arranged on the upper cover and has a through hole, the through hole is used for fixing the ball body, and an upwards extending flange is arranged on the edge of the through hole. The pollution-prevention trackball provided by the utility model has a simple structure, can effectively prevent impurities from entering a shell, and is prolonged in service life.
Description
Technical field
The utility model relates to indicator device, relates in particular to a kind of anti-pollution trace ball.
Background technology
More and more universal along with electronic equipment, the equipment supporting with it also develops rapidly.Wherein, sensing equipment is wherein important a kind of, for example mouse, trace ball or the like.For existing trace ball equipment, its structure more complicated.And wherein relatively container get into foreign material.In case foreign material get into also deposition, will have influence on light path, make the trace ball cisco unity malfunction.
Therefore, need provide a kind of anti-pollution trace ball to address the above problem.
The utility model content
In order to address this problem, the utility model discloses a kind of anti-pollution trace ball, said anti-pollution trace ball comprises loam cake and lower cover; Said loam cake is provided with perforate; Be provided with spheroid in the said perforate, cover on said and also be provided with fixed cover, said fixed cover is provided with through hole; Said through hole is fixed said spheroid, is provided with upwardly extending flange at the edge of said through hole.
Preferably, the diameter dimension of said spheroid is greater than the diameter dimension of said perforate.
Preferably, also be provided with axis of orientation between said loam cake and the said lower cover, optical chip, pcb board, LED, optical accessories and external connection, said optical chip, said LED, said optical accessories and said external connection are connected on the said pcb board.
Preferably, said spheroid contacts with said axis of orientation.
Preferably, said external connection is drawn from housing.
Preferably, said loam cake is fixedly connected with said lower cover.
The anti-pollution trace ball of the utility model, simple in structure, and can prevent effectively that foreign material from getting in the housing, prolonged the use of trace ball.
In the utility model content part, introduced the notion of a series of reduced forms, this will further explain in the embodiment part.The utility model content part does not also mean that key feature and the essential features that will attempt to limit technical scheme required for protection, does not more mean that the protection domain of attempting to confirm technical scheme required for protection.
Below in conjunction with accompanying drawing, specify the advantage and the characteristic of the utility model.
Description of drawings
Fig. 1 is the exploded view according to the anti-pollution trace ball of an embodiment of the utility model;
Fig. 2 is the front view according to the anti-pollution trace ball of an embodiment of the utility model;
Fig. 3 is the stereographic map according to the anti-pollution trace ball of an embodiment of the utility model.
Embodiment
In the description hereinafter, provided a large amount of concrete details and the utility model has been understood more completely so that provide.Yet, it will be apparent to one skilled in the art that the utility model can need not one or more these details and be able to enforcement.In other example,, describe for technical characterictics more well known in the art for fear of obscuring with the utility model.
In order thoroughly to understand the utility model, detailed structure will be proposed in following description.Obviously, the execution of the utility model is not limited to the specific details that those skilled in the art has the knack of.The preferred embodiment of the utility model is described in detail as follows, yet except these were described in detail, the utility model can also have other embodiments.
Below in conjunction with accompanying drawing the embodiment of the utility model is done detailed description.
Referring to figs. 1 to Fig. 3, show anti-pollution trace ball according to an embodiment of the utility model.This anti-pollution trace ball comprises loam cake 1, lower cover 2.Loam cake 1 is provided with perforate 11, wherein is provided with spheroid 3.Therefore the diameter dimension of spheroid 3 can be supported in this perforate 11 greater than the diameter dimension of this perforate 11.On loam cake 1, also be provided with fixed cover 4, fixed cover 4 is provided with through hole 41, is used for fixing spheroid 3.On fixed cover 4, also be provided with flange 42.Flange 42 extends upward certain height at the edge of through hole 41.Can prevent that like this dust and other impurities from falling into enclosure interior.
Between loam cake 1 and lower cover 2, also be provided with axis of orientation 5, optical chip 6, pcb board 7, LED8, optical accessories 9 and external connection 10.Optical chip 6, LED (light emitting diode) 8, optical accessories 9 and external connection 10 all are connected on the pcb board 7.Spheroid 3 contacts with axis of orientation 5, and can drive axis of orientation 5 rotations.Wherein external connection 10 is drawn from housing, so that be connected with electronic equipment.
This loam cake 1 is fixedly connected with lower cover 2, thereby above-mentioned parts are contained in wherein.
The anti-pollution trace ball of the utility model, simple in structure, and can prevent effectively that foreign material from getting in the housing, prolonged the use of trace ball.
The utility model is illustrated through the foregoing description, but should be understood that, the foregoing description just is used for for example and illustrative purposes, but not is intended to the utility model is limited in the described scope of embodiments.It will be understood by those skilled in the art that in addition; The utility model is not limited to the foregoing description; Instruction according to the utility model can also be made more kinds of variants and modifications, and these variants and modifications all drop in the utility model scope required for protection.The protection domain of the utility model is defined by appended claims book and equivalent scope thereof.
Claims (6)
1. an anti-pollution trace ball is characterized in that, said trace ball comprises loam cake and lower cover; Said loam cake is provided with perforate; Be provided with spheroid in the said perforate, cover on said and also be provided with fixed cover, said fixed cover is provided with through hole; Said through hole is fixed said spheroid, is provided with upwardly extending flange at the edge of said through hole.
2. according to the described anti-pollution trace ball of claim 1, it is characterized in that the diameter dimension of said spheroid is greater than the diameter dimension of said perforate.
3. according to the described anti-pollution trace ball of claim 2; It is characterized in that, also be provided with axis of orientation, optical chip between said loam cake and the said lower cover; Pcb board; LED, optical accessories and external connection, said optical chip, said LED, said optical accessories and said external connection are connected on the said pcb board.
4. according to the described anti-pollution trace ball of claim 3, it is characterized in that said spheroid contacts with said axis of orientation.
5. according to the described anti-pollution trace ball of claim 4, it is characterized in that said external connection is drawn from housing.
6. according to the described anti-pollution trace ball of claim 5, it is characterized in that said loam cake is fixedly connected with said lower cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220084438 CN202584037U (en) | 2012-03-08 | 2012-03-08 | Pollution-prevention trackball |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220084438 CN202584037U (en) | 2012-03-08 | 2012-03-08 | Pollution-prevention trackball |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202584037U true CN202584037U (en) | 2012-12-05 |
Family
ID=47253428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220084438 Expired - Fee Related CN202584037U (en) | 2012-03-08 | 2012-03-08 | Pollution-prevention trackball |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202584037U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022041373A1 (en) * | 2020-08-28 | 2022-03-03 | 深圳市畅响科技有限公司 | Page turning pen having trackball |
-
2012
- 2012-03-08 CN CN 201220084438 patent/CN202584037U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022041373A1 (en) * | 2020-08-28 | 2022-03-03 | 深圳市畅响科技有限公司 | Page turning pen having trackball |
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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: 20121205 Termination date: 20140308 |