CN211466284U - Electric tool casing strength reinforcing device - Google Patents
Electric tool casing strength reinforcing device Download PDFInfo
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- CN211466284U CN211466284U CN201922263774.4U CN201922263774U CN211466284U CN 211466284 U CN211466284 U CN 211466284U CN 201922263774 U CN201922263774 U CN 201922263774U CN 211466284 U CN211466284 U CN 211466284U
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- middle cover
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- bearing
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Abstract
The embodiment of the utility model provides a device is strengthened to electric tool casing intensity includes lid, bearing in the middle of plastic casing, metal at least, its characterized in that: the metal middle cover is designed in the plastic shell and is matched and positioned with the internal characteristics of the plastic shell; the outer surface of the metal middle cover is contacted with the inner surface of the plastic shell; the metal intermediate cover is a hollow body; the bearing is positioned in the metal middle cover inner cavity, and the outer surface of the bearing is in surface contact with the metal cover inner cavity; the metal middle cover can rotate along with the bearing; the hidden metal middle cover provided by the device supports the stator casing, so that the plastic casing of the electric tool cannot deform due to insufficient rigidity in matching, the problem that the concentricity of the stator and the rotor is insufficient is solved, and the hidden metal middle cover is structurally characterized. The utility model has the characteristics of make things convenient for the plastics casing to make the assembly, reduce casing and decide rotor fault rate, do not influence the outward appearance.
Description
Technical Field
The utility model relates to a device is strengthened to the casing, in particular to device is strengthened to electric tool casing intensity.
Background
The electric tool is widely applied in daily life, and the tool drives a working head by using a low-power motor or an electromagnet as power through a transmission mechanism. The electric tool has the advantages of convenience in carrying, simplicity in operation, various functions and the like, can greatly reduce the labor intensity, improve the working efficiency and realize the mechanization of manual operation, and is widely applied to the fields of buildings, house decoration, automobiles, machinery, electric power, bridges, gardening and the like, and can enter families in a large quantity.
The common plastic casing cooperation of present high rotational speed electric tool leads to the not enough problem of the concentricity of stator and rotor because the rigidity is not enough easy to be out of shape, and the casing improves with stator and rotor fault rate, inconvenient manufacturing assembly.
In the prior art, either a method of adding a plastic casing reinforcing rib is adopted, or other auxiliary fixtures are adopted to assist in positioning and assembling the plastic casing, but the strength of the plastic casing is not large enough and the shape is not regular, so that the effect of the method is not ideal, and furthermore, a reinforcing device is arranged outside the plastic casing, so that although the strength is improved, the appearance aesthetic feeling of the electric tool is affected, and the reinforcing device in the mode is also limited by the irregular shape of the plastic casing, is not easy to fix and can not be used for a long time.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, an embodiment of the utility model provides a device is strengthened to electric tool casing intensity.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this: the utility model provides a device is strengthened to electric tool casing intensity, includes lid, bearing in the middle of plastic casing, the metal at least, its characterized in that: the metal middle cover is designed in the plastic shell and is matched and positioned with the internal characteristics of the plastic shell; the outer surface of the metal middle cover is contacted with the inner surface of the plastic shell; the metal intermediate cover is a hollow body; the bearing is positioned in the metal middle cover inner cavity, and the outer surface of the bearing is in surface contact with the metal cover inner cavity; the metal intermediate cover is rotatable with the bearing.
Preferably, the metal middle cover is made of aluminum alloy.
Preferably, the thickness of the metal middle cover is equal.
Preferably, the wall thickness of the metal middle cover is larger than that of the plastic shell.
Preferably, the length of the metal middle cover is less than that of the plastic shell.
The embodiment of the utility model provides a device is strengthened to electric tool casing intensity includes lid, bearing in the middle of plastic casing, metal at least, its characterized in that: the metal middle cover is designed in the plastic shell and is matched and positioned with the internal characteristics of the plastic shell; the outer surface of the metal middle cover is contacted with the inner surface of the plastic shell; the metal intermediate cover is a hollow body; the bearing is positioned in the metal middle cover inner cavity, and the outer surface of the bearing is in surface contact with the metal cover inner cavity; the metal middle cover can rotate along with the bearing; the device provides lid in the middle of the hidden metal, and this lid in the middle of the metal has propped the stator casing for the cooperation of electric tool plastics casing can not be because of the not enough deformation of rigidity, has solved the not enough problem of the concentricity of stator and rotor, and hidden middle lid structure both made things convenient for the manufacturing assembly, reduces casing and stator and rotor fault rate, and does not influence the outward appearance.
Drawings
FIG. 1 is a schematic sectional view of the present invention;
FIG. 2 is a schematic view of the external structure of the present invention;
in the figure: 1-a plastic housing; 2-a metal intermediate lid; 3-a bearing.
Detailed Description
In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, belong to the scope of protection of the invention.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "secured," etc. are to be construed broadly. For example, it may be a fixed connection, a detachable connection, or an integral connection. The two elements may be mechanically or electrically connected, directly or indirectly connected through an intermediate medium, or connected through a communication path between the two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art as appropriate.
The present invention will be described in further detail with reference to the accompanying fig. 1-2.
The utility model provides a device is strengthened to this kind of electric tool casing intensity includes plastic casing 1, metal middle cover 2, bearing 3, its characterized in that at least: the metal middle cover 2 is designed in the plastic casing 1 and is matched with the internal features of the plastic casing 1 for positioning; the outer surface of the metal middle cover 2 is contacted with the inner surface of the plastic shell 1; the metal intermediate cap 2 is a hollow body; the bearing 3 is positioned in the inner cavity of the metal middle cover 2, and the outer surface of the bearing 3 is in surface contact with the inner cavity of the metal cover 2; the metal intermediate cover 2 is rotatable with the bearing 3.
Preferably, the metal middle cover 2 is made of aluminum alloy.
Preferably, the wall thickness of the metal intermediate cover 2 is equal everywhere.
Preferably, the wall thickness of the metal middle cover 2 is greater than that of the plastic casing 1.
Preferably, the length of the metal middle cover 2 is less than that of the plastic casing 1.
In the working process of the strength reinforcing device of the shell of the electric tool, as the metal middle cover 2 is designed inside the plastic shell 1 and is matched and positioned with the internal characteristics of the plastic shell 1, the outer surface of the metal middle cover 2 is contacted with the inner surface of the plastic shell 1, the metal middle cover 2 is a hollow body, the bearing 3 is positioned in the inner cavity of the metal middle cover 2, the outer surface of the bearing 3 is contacted with the inner cavity surface of the metal cover 2, and the metal middle cover 2 can rotate along with the bearing 3. When the plastic casing 1 is assembled, the metal middle cover 2 can support the inner surface of the plastic casing 1, and the problem that the concentricity of the stator and the rotor is not enough due to deformation caused by too weak strength of the plastic casing 1 is solved; the wall thickness of the metal middle cover 2 is equal everywhere, so that the equal strength everywhere of the metal middle cover 2 is ensured, and the service life of the metal middle cover is prolonged; and the design of lid 2 in the middle of the metal is inside plastic casing 1, and is hidden, when strengthening plastic casing 1 intensity, reduces plastic casing 1 and stator rotor fault rate, makes things convenient for the manufacturing assembly of plastic casing 1, does not also influence electric tool's outward appearance.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (5)
1. The utility model provides a device is strengthened to electric tool casing intensity, includes lid, bearing in the middle of plastic casing, the metal at least, its characterized in that: the metal middle cover is designed in the plastic shell and is matched and positioned with the internal characteristics of the plastic shell; the outer surface of the metal middle cover is contacted with the inner surface of the plastic shell; the metal intermediate cover is a hollow body; the bearing is positioned in the metal middle cover inner cavity, and the outer surface of the bearing is in surface contact with the metal cover inner cavity; the metal intermediate cover is rotatable with the bearing.
2. The apparatus of claim 1, wherein the means for reinforcing the strength of the housing of the power tool comprises: the metal middle cover is made of aluminum alloy.
3. The apparatus of claim 2, wherein the means for reinforcing the strength of the housing of the power tool comprises: the wall thickness of the metal middle cover is equal.
4. The apparatus of claim 2, wherein the means for reinforcing the strength of the housing of the power tool comprises: the wall thickness of the metal middle cover is larger than that of the plastic shell.
5. The apparatus for reinforcing strength of a housing of an electric power tool according to any one of claims 1 to 4, wherein: the length of the metal middle cover is smaller than that of the plastic shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922263774.4U CN211466284U (en) | 2019-12-18 | 2019-12-18 | Electric tool casing strength reinforcing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922263774.4U CN211466284U (en) | 2019-12-18 | 2019-12-18 | Electric tool casing strength reinforcing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211466284U true CN211466284U (en) | 2020-09-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922263774.4U Active CN211466284U (en) | 2019-12-18 | 2019-12-18 | Electric tool casing strength reinforcing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211466284U (en) |
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2019
- 2019-12-18 CN CN201922263774.4U patent/CN211466284U/en active Active
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 226100 No. 699, Xiangjiang Road, Haimen Economic and Technological Development Zone, Nantong City, Jiangsu Province Patentee after: Jiangsu Dayi Technology Co.,Ltd. Address before: 22699, Haimen Economic and Technological Development Zone, Donghai City, Jiangsu Province Patentee before: JIANGSU DAYI M&E TOOLS Co.,Ltd. |