CN204344733U - A kind of dust proof cover for universal joint - Google Patents
A kind of dust proof cover for universal joint Download PDFInfo
- Publication number
- CN204344733U CN204344733U CN201420813167.5U CN201420813167U CN204344733U CN 204344733 U CN204344733 U CN 204344733U CN 201420813167 U CN201420813167 U CN 201420813167U CN 204344733 U CN204344733 U CN 204344733U
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- Prior art keywords
- cover
- circle
- cover circle
- skeleton
- inner cover
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Abstract
The utility model discloses a kind of dust proof cover for universal joint, aim to provide a kind of dust proof cover for universal joint that can improve sealing and dust-proof effect, its drip irrigation device is: comprise cover body, support frame, support frame is positioned at cover body, cover body comprises the base cover of ring, base cover is provided with the outer cover circle extended to the same side, inner cover circle, outer cover circle, inner cover circle, base cover is integrated setting and forms, outer cover circle is provided with sealing flange, sealing flange perpendicular to outer cover circle sidewall residing for plane, sealing flange is provided with the first dust-proof rounding, sealing flange and outer cover circle are provided with inclined-plane away from the tie point place between base cover sidewall, inner cover circle is made up of the first inner cover circle and the second inner cover circle, second inner cover circle is connected with base cover by the first inner cover circle, first inner cover circle thickness is identical with base cover thickness, second inner cover circle is greater than the openings of sizes of the second inner cover circle near base cover away from the openings of sizes of base cover, second inner cover circle side is provided with the second dust-proof rounding.
Description
Technical field
The utility model relates to a kind of dust-proof cover, and more particularly, it relates to a kind of dust proof cover for universal joint that can improve sealing and dust-proof effect.
Background technique
Universal joint usually adopts oil sealing to add dust-proof cover and plays sealing, dustproof effect, dust-proof cover majority adopts nylon, plastic or other material is made, dust-proof cover is usual to be made up of outer cover circle, inner cover circle and base cover, outer cover snare is on the outer side wall of universal joint needing sealing, inner cover circle coordinates with inner oil sealing, but by the elasticity of material, dust-proof cover of the prior art only guarantees that the cooperation of oil sealing followed by dust-proof cover, be difficult to after there is installation recover original design size, be unfavorable for fitting operation, the problem that dust-proof effect is not good.
Model utility content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of dust proof cover for universal joint that can improve sealing and dust-proof effect.
For achieving the above object, the utility model provides following technological scheme: a kind of dust proof cover for universal joint, comprise cover body, support frame, described support frame is positioned at cover body, described cover body comprises the base cover of ring, described base cover is provided with the outer cover circle extended to the same side, inner cover circle, described outer cover circle, inner cover circle, base cover is integrated setting and forms, the sidewall relative with inner cover circle of described outer cover circle is provided with sealing flange, described sealing flange perpendicular to outer cover circle the sidewall relative with inner cover circle residing for plane, described sealing flange is provided with the first dust-proof rounding away from one end of outer cover circle, sealing flange away from the sidewall of base cover and outer cover circle away from base cover sidewall between tie point place be provided with from outer cover circle to the centroclinal inclined-plane of base cover, described inner cover circle is made up of the first inner cover circle and the second inner cover circle, described second inner cover circle is connected with base cover by the first inner cover circle, the thickness of described first inner cover circle is identical with the thickness of base cover, described second inner cover circle is greater than the openings of sizes of the second inner cover circle near base cover away from the openings of sizes of base cover, described second inner cover circle is provided with the second dust-proof rounding away from the side of the first inner cover circle.
Preferably, the diameter of described second dust-proof rounding is less than 0.25mm.
Preferably, described support frame is wholely set is formed by the first skeleton, the second skeleton, the 3rd skeleton, described first skeleton, the 3rd skeleton are all vertical with the second skeleton, first skeleton, the 3rd skeleton extend towards the same side of the second skeleton, described first skeleton is positioned at outer cover circle, described second skeleton is positioned at base cover, and described 3rd skeleton is positioned at inner cover circle, the length of described 3rd skeleton longitudinal cross-section be greater than the first skeleton longitudinal cross-section length.
Preferably, the joint of described 3rd skeleton and the second skeleton is provided with support rounding, described inner cover circle away from the sidewall of outer cover circle and base cover away from the second inner cover circle sidewall between joint be provided with wear-resistant rounding, the radius of described support rounding is identical with the radius of wear-resistant rounding.
Preferably, the angle of the described length direction of the second inner cover circle longitudinal cross-section and the plane residing for base cover be 25 degree-30 spend between.
Compared with prior art, the beneficial effects of the utility model are: base cover is provided with the outer cover circle extended to the same side, inner cover circle, described outer cover circle, inner cover circle, base cover is integrated setting and forms, adopt to be wholely set and can ensure that the cover body stability of whole dust proof cover for universal joint is stronger, sealing flange perpendicular to outer cover circle the sidewall relative with inner cover circle residing for plane, vertical set-up mode, when outer cover circle covers in the end face of universal joint, sealing flange perpendicular to outer cover circle can effectively prevent extraneous dust from falling in universal joint from outer cover circle, and when the end face of universal joint put into by outer cover circle, vertically disposed sealing flange is under the prerequisite ensureing sealing effect, the frictional force that sealing flange produces can also be reduced, dust-proof cover is loaded more smooth and easy, first dust-proof rounding the frictional force that can reduce further between sealing flange and universal joint outer side wall is set, dust-proof cover can not only be made to load more smooth and easy, and also can be more smooth and easy when dismantling, first dust-proof rounding can also play and reduce in loading and unloading process, wearing and tearing between sealing flange and universal joint outer side wall, sealing flange away from the sidewall of base cover and outer cover circle away from base cover sidewall between tie point place be provided with from outer cover circle to the centroclinal inclined-plane of base cover, inclined-plane can make the end face of outer cover circle insertion universal joint more smooth and easy, dust cover centers can be equipped with universal joint, vibrations slightly can be there are in universal joint in movement process, the thickness of the first inner cover circle is identical with the thickness of base cover, first inner cover circle directly contacts with universal joint, first inner cover circle can be subject to the squeezing action of universal joint, the first inner cover circle that thickness is identical and base cover can improve the structural strength of whole dust-proof cover, prevent due to thickness difference and occur unexpected fracture, second inner cover circle is greater than the openings of sizes of the second inner cover circle near base cover away from the openings of sizes of base cover, secondth inner cover circle can be more convenient for matching with oil sealing sidewall away from the major diameter opening of base cover, strengthen sealing effect, second inner cover circle is provided with the second dust-proof rounding away from the side of the first inner cover circle, arranging of second dust-proof rounding effectively can ensure that the second cover circle of the dust proof cover for universal joint produced is upper without burr, intact material, choke with resentment, the defects such as current mark, thus reach the object improving dust-proof effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of dust proof cover for universal joint embodiment of the utility model;
Fig. 2 is the sectional drawing of A-A in Fig. 1;
Fig. 3 is the partial enlarged drawing of B in Fig. 2.
Reference character: 1, base cover; 2, outer cover circle; 3, the first inner cover circle; 4, the second inner cover circle; 5, sealing flange; 6, the first dust-proof rounding; 7, inclined-plane; 8, support frame; 9, the first skeleton; 10, the second skeleton; 11, the 3rd skeleton; 12, rounding is supported; 13, wear-resistant rounding; 14, the second dust-proof rounding.
Embodiment
Referring to figs. 1 through Fig. 3, a kind of dust proof cover for universal joint embodiment of the utility model is described further.
A kind of dust proof cover for universal joint, comprise cover body, support frame 8, described cover body is made up of rubber, described support frame 8 is made up of carbon steel, described support frame 8 is positioned at cover body, described cover body comprises the base cover 1 of ring, described base cover 1 is provided with the outer cover circle 2 extended to the same side, inner cover circle, described outer cover circle 2, inner cover circle, base cover 1 is integrated setting and forms, the sidewall relative with inner cover circle of described outer cover circle 2 is provided with sealing flange 5, described sealing flange 5 perpendicular to outer cover circle 2 the sidewall relative with inner cover circle residing for plane, described sealing flange 5 is provided with the first dust-proof rounding 6 away from one end of outer cover circle 2, sealing flange 5 away from the sidewall of base cover 1 and outer cover circle 2 away from base cover 1 sidewall between tie point place be provided with from outer cover circle 2 to the centroclinal inclined-plane 7 of base cover 1, described inner cover circle is made up of the first inner cover circle 3 and the second inner cover circle 4, described second inner cover circle 4 is connected with base cover 1 by the first inner cover circle 3, the longitudinal thickness of described first inner cover circle 3 is a, the transverse gage of described base cover 1 is b, wherein a equals b, described second inner cover circle 4 is greater than the openings of sizes of the second inner cover circle 4 near base cover 1 away from the openings of sizes of base cover 1, described second inner cover circle 4 is provided with the second dust-proof rounding 14 away from the side of the first inner cover circle 3, base cover 1 is provided with the outer cover circle 2 extended to the same side, inner cover circle, described outer cover circle 2, inner cover circle, base cover 1 is integrated setting and forms, adopt to be wholely set and can ensure that the cover body stability of whole dust proof cover for universal joint is stronger, sealing flange 5 perpendicular to outer cover circle 2 the sidewall relative with inner cover circle residing for plane, vertical set-up mode, when outer cover circle 2 covers in the end face of universal joint, sealing flange 5 perpendicular to outer cover circle 2 can effectively prevent extraneous dust from falling in universal joint from outer cover circle 2, and when the end face of universal joint put into by outer cover circle 2, vertically disposed sealing flange 5 is under the prerequisite ensureing sealing effect, the frictional force that sealing flange 5 produces can also be reduced, dust-proof cover is loaded more smooth and easy, first dust-proof rounding 6 the frictional force that can reduce further between sealing flange 5 and universal joint outer side wall is set, dust-proof cover can not only be made to load more smooth and easy, and also can be more smooth and easy when dismantling, first dust-proof rounding 6 can also play and reduce in loading and unloading process, wearing and tearing between sealing flange 5 and universal joint outer side wall, sealing flange 5 away from the sidewall of base cover 1 and outer cover circle 2 away from base cover 1 sidewall between tie point place be provided with from outer cover circle 2 to the centroclinal inclined-plane 7 of base cover 1, it is more smooth and easy that inclined-plane 7 can make outer cover circle 2 insert the end face of universal joint, dust cover centers can be equipped with universal joint, vibrations slightly can be there are in universal joint in movement process, the thickness of the first inner cover circle 3 is identical with the thickness of base cover 1, first inner cover circle 3 directly contacts with universal joint, first inner cover circle 3 can be subject to the squeezing action of universal joint, the first inner cover circle 3 that thickness is identical and base cover 1 can improve the structural strength of whole dust-proof cover, prevent due to thickness difference and occur unexpected fracture, second inner cover circle 4 is greater than the openings of sizes of the second inner cover circle 4 near base cover 1 away from the openings of sizes of base cover 1, second inner cover circle 4 can be more convenient for matching with oil sealing sidewall away from the major diameter opening of base cover 1, strengthen sealing effect, second inner cover circle 4 is provided with the second dust-proof rounding 14 away from the side of the first inner cover circle 3, arranging of second dust-proof rounding 14 effectively can ensure that the second cover circle of the dust proof cover for universal joint produced is upper without burr, intact material, choke with resentment, the defects such as current mark, thus reach the object improving dust-proof effect.
The diameter of described second dust-proof rounding 14 is less than 0.25mm, if the second dust-proof diameter of leading fillet is excessive, dust-proof effect can decline by straight line, while the diameter being less than 0.25mm arranges and can ensure dust-proof effect, and the technological requirement of dust-proof cover production mould can be reduced, reduce cost of production.
Described support frame 8 is by the first skeleton 9, second skeleton 10, 3rd skeleton 11 is wholely set formation, described first skeleton 9, 3rd skeleton 11 is all vertical with the second skeleton 10, the vertical difficulty of processing arranging not only whole support frame 8 reduces greatly mutually, and the intensity of whole support frame 8 also promotes further, first skeleton 9, 3rd skeleton 11 extends towards the same side of the second skeleton 10, described first skeleton 9 is positioned at outer cover circle 2, described second skeleton 10 is positioned at base cover 1, described 3rd skeleton 11 is positioned at inner cover circle, the length of described 3rd skeleton 11 longitudinal cross-section be greater than the first skeleton 9 longitudinal cross-section length, length due to the longitudinal cross-section of inner cover circle is greater than the length of outer cover circle 2 longitudinal cross-section, and inner cover circle directly contacts with export-oriented saving, 3rd skeleton 11 can give the enough intensity of inner cover circle.
The joint of described 3rd skeleton 11 and the second skeleton 10 is provided with and supports rounding 12, support rounding 12 effectively can promote the support strength between the 3rd skeleton 11 and the second skeleton 10, and stress can be avoided to concentrate, described inner cover circle away from the sidewall of outer cover circle 2 and base cover 1 away from the second inner cover circle 4 sidewall between joint be provided with wear-resistant rounding 13, the radius of described support rounding 12 is identical with the radius of wear-resistant rounding 13, the setting that the radius of wear-resistant rounding 13 is identical with the radius of wear-resistant rounding 13: on the one hand, when second inner cover circle 4 is subject to the shake of universal joint, second inner cover circle 4 and the 3rd skeleton 11 can followed by shake, the identical support force of 2 roundings that can make of radius is with a direction, and the drawback of appearance the 3rd skeleton 11 bursting inner cover circle can be avoided, on the other hand, wear-resistant rounding 13 can make universal joint insert more swimmingly, thus promote the property easy to use of whole dust proof cover for universal joint.
The angle of the described length direction of the second inner cover circle 4 longitudinal cross-section and the plane residing for base cover 1 be 25 degree-30 spend between, angle is preferably 26 degree, in using process, second inner cover circle 4 coordinates with oil sealing, if angle too conference causes dust-proof cover to install difficulty, if angle is too little, cannot realize the effect of good sealing and dustproof, through testing for a long time, the angle between 25 degree of-30 degree can reach the effect of the easy for installation of dust-proof cover and dust sealing simultaneously.
The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technological schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. a dust proof cover for universal joint, comprise cover body, support frame, described support frame is positioned at cover body, it is characterized in that: described cover body comprises the base cover of ring, described base cover is provided with the outer cover circle extended to the same side, inner cover circle, described outer cover circle, inner cover circle, base cover is integrated setting and forms, the sidewall relative with inner cover circle of described outer cover circle is provided with sealing flange, described sealing flange is perpendicular to the sidewall relative with inner cover circle of outer cover circle, described sealing flange is provided with the first dust-proof rounding away from one end of outer cover circle, sealing flange away from the sidewall of base cover and outer cover circle away from base cover sidewall between tie point place be provided with from outer cover circle to the centroclinal inclined-plane of base cover, described inner cover circle is made up of the first inner cover circle and the second inner cover circle, described second inner cover circle is connected with base cover by the first inner cover circle, the thickness of described first inner cover circle is identical with the thickness of base cover, described second inner cover circle is greater than the openings of sizes of the second inner cover circle near base cover away from the openings of sizes of base cover, described second inner cover circle is provided with the second dust-proof rounding away from the side of the first inner cover circle.
2. a kind of dust proof cover for universal joint according to claim 1, is characterized in that: the diameter of described second dust-proof rounding is less than 0.25mm.
3. a kind of dust proof cover for universal joint according to claim 1, it is characterized in that: described support frame is wholely set is formed by the first skeleton, the second skeleton, the 3rd skeleton, described first skeleton, the 3rd skeleton are all vertical with the second skeleton, first skeleton, the 3rd skeleton extend towards the same side of the second skeleton, described first skeleton is positioned at outer cover circle, described second skeleton is positioned at base cover, described 3rd skeleton is positioned at inner cover circle, the length of described 3rd skeleton longitudinal cross-section be greater than the first skeleton longitudinal cross-section length.
4. a kind of dust proof cover for universal joint according to claim 3, it is characterized in that: the joint of described 3rd skeleton and the second skeleton is provided with support rounding, described inner cover circle away from the sidewall of outer cover circle and base cover away from the second inner cover circle sidewall between joint be provided with wear-resistant rounding, the radius of described support rounding is identical with the radius of wear-resistant rounding.
5. a kind of dust proof cover for universal joint according to claim 1, is characterized in that: the angle of the described length direction of the second inner cover circle longitudinal cross-section and the plane residing for base cover be 25 degree-30 spend between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420813167.5U CN204344733U (en) | 2014-12-19 | 2014-12-19 | A kind of dust proof cover for universal joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420813167.5U CN204344733U (en) | 2014-12-19 | 2014-12-19 | A kind of dust proof cover for universal joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204344733U true CN204344733U (en) | 2015-05-20 |
Family
ID=53228004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420813167.5U Expired - Fee Related CN204344733U (en) | 2014-12-19 | 2014-12-19 | A kind of dust proof cover for universal joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204344733U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105058228A (en) * | 2015-07-24 | 2015-11-18 | 重庆卓田齿克科技有限公司 | Flexible moving protection cover for small dental grinding instrument |
-
2014
- 2014-12-19 CN CN201420813167.5U patent/CN204344733U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105058228A (en) * | 2015-07-24 | 2015-11-18 | 重庆卓田齿克科技有限公司 | Flexible moving protection cover for small dental grinding instrument |
| CN105058228B (en) * | 2015-07-24 | 2017-08-25 | 重庆卓田齿克科技有限公司 | Small-sized dentistry beveller compliant motion protective cover |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150520 Termination date: 20161219 |