CN106376200A - Waterproof structure for connection between electric appliance cover and casing - Google Patents
Waterproof structure for connection between electric appliance cover and casing Download PDFInfo
- Publication number
- CN106376200A CN106376200A CN201510432726.7A CN201510432726A CN106376200A CN 106376200 A CN106376200 A CN 106376200A CN 201510432726 A CN201510432726 A CN 201510432726A CN 106376200 A CN106376200 A CN 106376200A
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- CN
- China
- Prior art keywords
- casing
- screw
- electrical equipment
- electric appliance
- equipment lid
- 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.)
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Abstract
The invention relates to a waterproof structure for connection between an electric appliance cover and a casing. The waterproof structure comprises the casing internally provided with an electric appliance element, the upper end surface of the casing is provided with a plurality of threaded holes, the upper end of the casing is provided with the electric appliance cover, the lower end of the electric appliance cover is provided with a step, the side wall of the step is disposed at the inner side of the casing, the lower end of the electric appliance cover is circumferentially provided with a plurality of screw countersinks, the screw countersinks penetrate the end surface of the step, the screw countersinks are internally provided with screws for connection with the threaded holes in the upper end surface of the casing, the side walls of the screw countersinks are provided with a plurality of drain tanks, the drain tanks are oriented outwards, the drain tanks are used for draining accumulated water, and a sealing ring is arranged between the lower end surface of the electric appliance cover and the upper end surface of the casing. According to the invention, the structure is simple, and through arranging the drain tanks in the side walls of the screw countersinks, the accumulated water is enabled to flow out of the drain tanks, such that electric devices are prevented from damage caused by longitudinal flow of the accumulated water into the casing along with screw countersinks in the electric appliance cover, and the service life of the electric devices is prolonged.
Description
Technical field
The present invention relates to the waterproof construction that a kind of electrical equipment lid is connected with casing.
Background technology
At present, in the outside of known YE, when electrical equipment lid and casing are fastened by screw, screw is not to be directly exposed to outside, prevents external force collision from leading to screw loosening.It is typically all the counter sink that mounting screw is arranged on electrical equipment lid, but rainwater, humidity is larger or other water inlets in the case of, the countersunk head in the hole being provided with screw has hydrops, if other sealing surfaces do not have strict seal or sealing member aging, hydrops will penetrate into the faying face between electrical equipment lid and casing along counter sink, then hydrops are slowly penetrating into inside YE, because the electrical part within YE itself does not possess water resistance, thus the service life of the internal electrical part of YE can be greatly reduced.In the industries such as oil, chemical industry, electric power, metallurgy, papermaking, water process, because construction environment is more severe, ambient air humidity is big or the factor such as rain penetration, all the service life of YE inside electrical part will can be affected, therefore sealing performance require higher.
Content of the invention
For drawbacks described above, it is an object of the invention to provide a kind of structure is simple, being prevented from screw countersunk head in the hole has hydrops, and the service life of box house electrical part is effectively ensured.
For this technical solution adopted in the present invention it is:
Including inside the casing of electric elements is installed, described casing upper surface is provided with some screwed holes, described casing upper end is provided with electrical equipment lid, the lower end of described electrical equipment lid is provided with step, the side wall of described step is located at box inside, the lower end peripheral of described electrical equipment lid is provided with some screw counter sinks, described screw counter sink runs through step end face, described screw countersunk head in the hole is provided with screw and is connected with the screwed hole of casing upper surface, a rhone is offered on the side wall of described screw counter sink, the direction of described rhone is outwards, described rhone is used for arranging hydrops, it is provided with sealing ring between the lower surface of described electrical equipment lid and the upper surface of casing.
Further, it is provided with a groove inside the upper surface of described casing, in described groove, is provided with sealing ring, the upper surface of described sealing ring is inconsistent with the lower surface of electrical equipment lid, the inner side end of described sealing ring is inconsistent with mesa sidewall.
Further, the width of described rhone cannot be greater than the diameter of screw, and the bottom of described rhone must not be higher than the mounting plane of screw.
The invention has the advantage that
Present configuration is simple, by opening up rhone on the side wall of screw counter sink, when screw countersunk head in the hole produces hydrops, hydrops will flow out at rhone, it is prevented effectively from hydrops and longitudinally flows into damage electrical part in casing along the screw counter sink on electrical equipment lid, improve the service life of electrical part；By setting up sealing ring at the composition surface of electrical equipment lid and casing, substantially increase the sealing to box house electrical part, further ensure the normal service life of electrical part.
Brief description
Fig. 1, Fig. 2 are the structural representations of the present invention.
In figure 1 is casing, 2 is screwed hole, 3 is electrical equipment lid, 4 is screw counter sink, 5 is screw, 6 is rhone, 7 is sealing ring.
Specific embodiment
The waterproof construction that a kind of electrical equipment lid is connected with casing, including inside the casing 1 of electric elements is installed, described casing 1 upper surface is provided with some screwed holes 2, described casing 1 upper end is provided with electrical equipment lid 3, the lower end of described electrical equipment lid 3 is provided with step, the side wall of described step is located inside casing 1, the lower end peripheral of described electrical equipment lid 3 is provided with some screw counter sinks 4, described screw counter sink 4 runs through step end face, the screwed hole 2 being provided with screw 5 in described screw counter sink 4 with casing 1 upper surface is connected, one rhone 6 is offered on the side wall of described screw counter sink 4, the direction of described rhone 6 is outwards, described rhone 6 is used for arranging hydrops, it is provided with sealing ring 7 between the lower surface of described electrical equipment lid 3 and the upper surface of casing 1.
Further, it is provided with a groove inside the upper surface of described casing 1, in described groove, is provided with sealing ring 7, the upper surface of described sealing ring 7 is inconsistent with the lower surface of electrical equipment lid 3, and the inner side end of described sealing ring 7 is inconsistent with mesa sidewall.
Further, the width of described rhone 6 cannot be greater than the diameter of screw 5, and the bottom of described rhone 6 must not be higher than the mounting plane of screw 5.
Claims (3)
1. the waterproof construction that a kind of electrical equipment lid is connected with casing, it is characterized in that, including inside the casing of electric elements is installed, described casing upper surface is provided with some screwed holes, described casing upper end is provided with electrical equipment lid, the lower end of described electrical equipment lid is provided with step, the side wall of described step is located at box inside, the lower end peripheral of described electrical equipment lid is provided with some screw counter sinks, described screw counter sink runs through step end face, described screw countersunk head in the hole is provided with screw and is connected with the screwed hole of casing upper surface, a rhone is offered on the side wall of described screw counter sink, the direction of described rhone is outwards, described rhone is used for arranging hydrops, it is provided with sealing ring between the lower surface of described electrical equipment lid and the upper surface of casing.
2. the waterproof construction that a kind of electrical equipment lid according to claim 1 is connected with casing, it is characterized in that, it is provided with a groove inside the upper surface of described casing, it is provided with sealing ring in described groove, the upper surface of described sealing ring is inconsistent with the lower surface of electrical equipment lid, and the inner side end of described sealing ring is inconsistent with mesa sidewall.
3. it is characterised in that the width of described rhone cannot be greater than the diameter of screw, the bottom of described rhone must not be higher than the mounting plane of screw to the waterproof construction that a kind of electrical equipment lid according to claim 1 is connected with casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510432726.7A CN106376200A (en) | 2015-07-22 | 2015-07-22 | Waterproof structure for connection between electric appliance cover and casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510432726.7A CN106376200A (en) | 2015-07-22 | 2015-07-22 | Waterproof structure for connection between electric appliance cover and casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106376200A true CN106376200A (en) | 2017-02-01 |
Family
ID=57880985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510432726.7A Pending CN106376200A (en) | 2015-07-22 | 2015-07-22 | Waterproof structure for connection between electric appliance cover and casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106376200A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110752522A (en) * | 2019-10-22 | 2020-02-04 | 株洲时代新材料科技股份有限公司 | Motor train unit overhead high-voltage equipment box top cover sealing structure and method |
-
2015
- 2015-07-22 CN CN201510432726.7A patent/CN106376200A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110752522A (en) * | 2019-10-22 | 2020-02-04 | 株洲时代新材料科技股份有限公司 | Motor train unit overhead high-voltage equipment box top cover sealing structure and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170201 |