CN203119678U - Self-lock device of motor connecting box cover - Google Patents
Self-lock device of motor connecting box cover Download PDFInfo
- Publication number
- CN203119678U CN203119678U CN 201320113646 CN201320113646U CN203119678U CN 203119678 U CN203119678 U CN 203119678U CN 201320113646 CN201320113646 CN 201320113646 CN 201320113646 U CN201320113646 U CN 201320113646U CN 203119678 U CN203119678 U CN 203119678U
- Authority
- CN
- China
- Prior art keywords
- bolt
- box cover
- connecting box
- self
- lock device
- 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
Links
Abstract
The utility model relates to a motor self-lock device, in particular to a self-lock device of a motor connecting box cover. The self-lock device of the motor connecting box cover solves the problems that when connection and disconnection of an existing motor connecting box cover are carried out, a bolt is prone to dropping, operation is difficult, and a machine is easy to damage. The self-lock device of the motor connecting box cover comprises a connecting box cover body, wherein a bolt is screwed on the connecting box cover body, a gasket is sleeved on the bolt, a column-shaped hole is formed in the lower portion of a bolt hole of the connecting box cover body, the diameter of the column-shaped hole is larger than the diameter of the bolt hole, a rubber ring located inside the column-shaped hole is tightly sleeved on the bolt, and the distance between the rubber ring and the gasket is smaller than the thickness of the connecting box cover body. The self-lock device of the motor connecting box cover is reasonable and reliable in structural design, solves the problem that the bolt frequently drops when the connecting box cover is disassembled and assembled, improves working efficiency, saves cost, and reduces potential safety hazards, the rubber ring is extensible to be conveniently sleeved on the bolt, and the strength of the bolt is not changed.
Description
Technical field
The utility model relates to miniature motor self-locking, is specially a kind of connection box for motor lid self-locking device.
Background technology
Hexagonal or outer-hexagonal bolt added spring washer link lid in connection box for motor adopted at present, the industrial and mineral motor, particularly tunnel motor because its special operational environment, bolt and packing ring above the terminal box often drops, loses in wiring or when taking out stitches, not only increased operating difficulties, and in a single day bolt or packing ring drop to and probably cause machine breakdown in motor or the driving system in certain parts, delays and produce the duration, causes bigger economic loss.
Summary of the invention
Existing connection box for motor lid connects the utility model, bolt easily drops and has the problem of operating difficulties and fragile machine when taking out stitches in order to solve, and a kind of connection box for motor lid self-locking device is provided.
The utility model is to adopt following technical scheme to realize: connection box for motor lid self-locking device, comprise connector cover, be screwed with bolt on the connector cover, be with packing ring on the bolt, the bolt hole bottom of connector cover is that diameter is greater than the cylinder hole of diameter of bolt hole, and bolt tightens and is with the rubber ring that is positioned at cylinder hole, and the distance between rubber ring and the packing ring is less than the thickness of connector cover.
During installation, earlier bolt is passed connector cover, then rubber ring is enclosed within the bolt thread end, successively all bolts on the connector cover are so installed, then connector cover is lain on the terminal box, fastening bolt successively, at this moment, rubber ring will move up in the extruding that is subjected to terminal box, up to deflated state; During dismounting, looser a bolt successively, after terminal box is back-outed in the bolt thread end, will in the cylinder hole of connector cover, spin, because rubber ring still can be enclosed within on the bolt, drop from connector cover to prevent bolt; When again connector cover being installed, when placing connector cover, bolt will be located convenient the installation automatically, rubber ring is located at bolt owing to installing to be squeezed for the first time, can not be squeezed again, prolonged the useful life of rubber ring, overcome that existing connection box for motor lid connects, bolt easily drops and has the problem of operating difficulties and fragile machine when taking out stitches.
The utility model reasonable in design is reliable, and the problem that bolt often drops when having solved the dismounting connector cover has improved operating efficiency, provides cost savings, and has reduced potential safety hazard, and rubber ring can stretch, and conveniently is enclosed within on the bolt, does not change the intensity of bolt.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among the figure: 1-connector cover, 2-bolt, 3-packing ring, 4-cylinder hole, 5-rubber ring.
Embodiment
Connection box for motor lid self-locking device, comprise connector cover 1, be screwed with bolt 2 on the connector cover 1, be with packing ring 3 on the bolt 2, the bolt hole bottom of connector cover 1 is that diameter is greater than the cylinder hole 4 of diameter of bolt hole, and bolt 2 tightens and is with the rubber ring 5 that is positioned at cylinder hole 4, and the distance between rubber ring 5 and the packing ring 3 is less than the thickness of connector cover 1.
In the specific implementation process, bolt 2 adopts M8 outer-hexagonal bolt, and rubber ring 5 adopts Φ 3 * Φ 7cm, and the internal diameter of rubber ring 5 just can tightly be enclosed within on the bolt 2 less than bolt 2 diameters like this, and the internal diameter of cylinder hole 4 is 15cm.
Claims (1)
1. a connection box for motor covers self-locking device, comprise connector cover (1), be screwed with bolt (2) on the connector cover (1), be with packing ring (3) on the bolt (2), it is characterized in that: the bolt hole bottom of connector cover (1) is that diameter is greater than the cylinder hole (4) of diameter of bolt hole, and bolt (2) tightens and is with the rubber ring (5) that is positioned at cylinder hole (4), and the distance between rubber ring (5) and the packing ring (3) is less than the thickness of connector cover (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320113646 CN203119678U (en) | 2013-03-13 | 2013-03-13 | Self-lock device of motor connecting box cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320113646 CN203119678U (en) | 2013-03-13 | 2013-03-13 | Self-lock device of motor connecting box cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203119678U true CN203119678U (en) | 2013-08-07 |
Family
ID=48899994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320113646 Expired - Fee Related CN203119678U (en) | 2013-03-13 | 2013-03-13 | Self-lock device of motor connecting box cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203119678U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103124113A (en) * | 2013-03-13 | 2013-05-29 | 永济新时速电机电器有限责任公司 | Self-locking device of motor terminal box lid |
-
2013
- 2013-03-13 CN CN 201320113646 patent/CN203119678U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103124113A (en) * | 2013-03-13 | 2013-05-29 | 永济新时速电机电器有限责任公司 | Self-locking device of motor terminal box lid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 044500 Yongji City, Shanxi Province, the city of motor street, No. 18, No. Patentee after: CRRC YONGJI ELECTRIC CO., LTD. Address before: 044500 Yongji City, Shanxi Province, the city of motor street, No. 18, No. Patentee before: Yongji Xinshisu Motor Electrical Appliance Co., Ltd. |
|
| 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: 20130807 Termination date: 20180313 |