CN203071522U - Mine-used junction box - Google Patents
Mine-used junction box Download PDFInfo
- Publication number
- CN203071522U CN203071522U CN 201320060488 CN201320060488U CN203071522U CN 203071522 U CN203071522 U CN 203071522U CN 201320060488 CN201320060488 CN 201320060488 CN 201320060488 U CN201320060488 U CN 201320060488U CN 203071522 U CN203071522 U CN 203071522U
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- CN
- China
- Prior art keywords
- hole
- sheath
- screw
- upper cover
- macropore
- 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 mine-used junction box, comprising a cylindrical sheath arranged on an upper cover, wherein the sheath is provided with stepped hole composed of a large hole and a small hole, the large hole and the small hole are coaxial, the diameter of the large hole is greater than that of the head part of a screw, the diameter of the small hole is greater than that of the threaded part of the screw, and the bottom surface of the large hole is parallel with the upper plane of the upper cover. The sheath is placed above the hole of the upper cover, the small hole of the sheath is aligned with the hole in the upper cover, and the screw is screwed into the threaded hole of the casing, thereby assembling the casing, the rubber pad and the upper cover; the head part of the screw is positioned in the large hole of the sheath, thereby effectively preventing the potential safety hazards due to failure and damage of the fastener caused by impact on the head part of the fastener; and the sheath can be subjected to mass production, the cost is low, the assembly is simple and fast, the efficiency is improved, and the production cost is reduced.
Description
Technical field
The utility model relates to a kind of electric product, is specifically related to a kind of terminal box.
Background technology
Therefore mining terminal box need have explosion-proof performance owing to use in mine.Therefore the attachment screw of mining terminal box generally all adopts the countersunk head design, makes head of screw be arranged in counter sink, prevents from causing when fastener head is subjected to impacting securing member to damage inefficacy and causes potential safety hazard.But the more thick and heavy manufacturing cost that makes that the bearing counter sink often just need be made loam cake in the loam cake of terminal box increases, and makes counter sink and need waste a large amount of man-hours and manpower, so inefficiency.
Summary of the invention
The utility model provides a kind of explosion-proof mining terminal box in order to overcome the deficiency of above technology.
The technical scheme that its technical problem that overcomes the utility model adopts is:
This mining terminal box, comprise and be arranged at the cylindrical sheath in loam cake top, described sheath is provided with the stepped hole of being made up of macropore and aperture, coaxial and the big bore dia of its macropore and aperture is greater than the head diameter of screw, hole diameter is greater than the threaded portion diameter of screw, and described macropore bottom surface is parallel to the last plane of loam cake.
In order to prevent that screw from getting rusty, also comprise the seal cover that is flange shape, described seal cover is airtight to be fastened on the macropore of sheath.
The beneficial effects of the utility model are: sheath is put on the hole of loam cake, and makes the coincidence of aliging with the hole of loam cake of the aperture of sheath, screw is screwed in the screwed hole of housing then.Therefore housing, rubber blanket and loam cake can be assembled together, the head of screw is the macropore that is arranged in sheath, causes potential safety hazard so cause securing member to damage can effectively avoid fastener head to be subjected to impacting the time to lose efficacy.And sheath can be produced in enormous quantities, and is with low cost, and the assembling simple and fast has improved efficient and reduced production cost.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Among the figure, 1. housing 2. rubber blankets 3. loam cakes 4. sheaths 5. screws 6. seal covers.
Embodiment
Be described further below in conjunction with 1 pair of the utility model of accompanying drawing.
This mining terminal box, comprise and be arranged at the cylindrical sheath 4 in loam cake 3 tops, described sheath 4 is provided with the stepped hole of being made up of macropore and aperture, coaxial and the big bore dia of its macropore and aperture is greater than the head diameter of screw 5, hole diameter is greater than the threaded portion diameter of screw 5, and described macropore bottom surface is parallel to the last plane of loam cake 3., sheath 4 is put on the hole of loam cake 3 during this mining terminal box in assembling, and makes the coincidence of aliging with the hole of loam cake 3 of the aperture of sheath 4, then screw 5 is screwed in the screwed hole of housing 1.Therefore housing 1, rubber blanket 2 and loam cake 3 can be assembled together, the head of screw 5 is the macropores that are arranged in sheath 4, causes potential safety hazard so cause securing member to damage can effectively avoid fastener head to be subjected to impacting the time to lose efficacy.And sheath 4 can be produced in enormous quantities, and is with low cost, and the assembling simple and fast has improved efficient and reduced production cost.
In order to prevent that screw from getting rusty, also comprise the seal cover that is flange shape, described seal cover is airtight to be fastened on the macropore of sheath
Also comprise the seal cover 6 that is flange shape, described seal cover 6 is airtight to be fastened on the macropore of sheath 4.By the sealing of seal cover 6, can effectively prevent contacting of screw 5 and humid air, prevent its corrosion, strengthened fail safe and the reliability of this mining terminal box.
Claims (2)
1. mining terminal box, it is characterized in that: comprise being arranged at loam cake (3) top cylindrical sheath (4), described sheath (4) is provided with the stepped hole of being made up of macropore and aperture, coaxial and the big bore dia of its macropore and aperture is greater than the head diameter of screw (5), hole diameter is greater than the threaded portion diameter of screw (5), and described macropore bottom surface is parallel to the last plane of loam cake (3).
2. mining terminal box according to claim 1 is characterized in that: also comprise the seal cover (6) that is flange shape, described seal cover (6) is airtight to be fastened on the macropore of sheath (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320060488 CN203071522U (en) | 2013-02-04 | 2013-02-04 | Mine-used junction box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320060488 CN203071522U (en) | 2013-02-04 | 2013-02-04 | Mine-used junction box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203071522U true CN203071522U (en) | 2013-07-17 |
Family
ID=48770273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320060488 Expired - Fee Related CN203071522U (en) | 2013-02-04 | 2013-02-04 | Mine-used junction box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203071522U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104009429A (en) * | 2014-05-13 | 2014-08-27 | 安徽省含山县预应力铸造厂 | Connecting box cover |
| CN105098683A (en) * | 2015-09-08 | 2015-11-25 | 囯网山东夏津县供电公司 | Novel waterproof junction box |
| CN108541174A (en) * | 2018-05-31 | 2018-09-14 | 湖北省雄雄电子科技有限公司 | A kind of controller for electric vehicle that water resistance is good |
-
2013
- 2013-02-04 CN CN 201320060488 patent/CN203071522U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104009429A (en) * | 2014-05-13 | 2014-08-27 | 安徽省含山县预应力铸造厂 | Connecting box cover |
| CN105098683A (en) * | 2015-09-08 | 2015-11-25 | 囯网山东夏津县供电公司 | Novel waterproof junction box |
| CN108541174A (en) * | 2018-05-31 | 2018-09-14 | 湖北省雄雄电子科技有限公司 | A kind of controller for electric vehicle that water resistance is good |
| CN108541174B (en) * | 2018-05-31 | 2020-06-26 | 湖北省雄雄电子科技有限公司 | Electric vehicle controller with good waterproof performance |
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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: 20130717 Termination date: 20170204 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |