CN220516402U

CN220516402U - Electric tool

Info

Publication number: CN220516402U
Application number: CN202322036871.6U
Authority: CN
Inventors: 孙伟
Original assignee: Jiangsu Dongcheng Tools Technology Co Ltd
Current assignee: Jiangsu Dongcheng Tools Technology Co Ltd
Priority date: 2023-07-31
Filing date: 2023-07-31
Publication date: 2024-02-23
Anticipated expiration: 2033-07-31

Abstract

The utility model relates to an electric tool, which comprises a shell, at least two components contained in the shell and a fixing structure for fixing the at least two components, wherein the shell comprises a plurality of containing cavities for containing the at least two components and a fixing space positioned between two adjacent containing cavities; the fixing structure comprises a body part extending from the inner wall of the shell to the fixing space and a clamping part protruding into the accommodating cavity from the body part, wherein the clamping part is provided with at least two hooks extending along two different directions to fix at least two components. According to the utility model, the clamping part of the fixing structure is arranged to be the hook part extending along at least two different directions, so that at least two components can be fixed by one fixing structure at the same time, thereby achieving the purposes of simplifying the shell structure, improving the compatibility and reducing the cost.

Description

Electric tool

[ field of technology ]

The present utility model relates to an electric tool, and more particularly, to an electric tool capable of simultaneously fixing a plurality of components.

[ background Art ]

The electric tool in the market at present generally comprises a shell and a plurality of components accommodated in the shell, wherein the components are fixed through fixing ribs in the shell, but in order to facilitate assembly, some assembly gaps are reserved between the components and the shell, so that the components and the shell are positioned in the use process to easily shake; in addition, a plurality of fixing rib positions are often required for fixing each component, and the fixing rib positions are often integrally formed with the shell, so that the die is complex and the forming cost is increased.

In view of the above, it is desirable to provide an improved power tool that overcomes the shortcomings of the prior art.

[ utility model ]

In view of the shortcomings of the prior art, an object of the present utility model is to provide an electric tool capable of fixing a plurality of components at the same time.

The utility model solves the problems in the prior art by adopting the following technical scheme: the electric tool comprises a shell, at least two components contained in the shell and a fixing structure for fixing the at least two components, wherein the shell comprises a plurality of containing cavities for containing the at least two components and a fixing space positioned between two adjacent containing cavities; the fixing structure comprises a body part extending from the inner wall of the shell to the inside of the fixing space and a clamping part protruding from the body part into the accommodating cavity, wherein the clamping part is provided with at least two hooks extending along two different directions to fix at least two components.

The further improvement scheme is as follows: the hook portion includes a first hook portion extending in a first direction and a second hook portion extending in a second direction, the first direction being parallel to the second direction or the first direction being flush with the second direction.

The further improvement scheme is as follows: the hooks include a third hook extending in a third direction and a fourth hook extending in a fourth direction, the first direction being perpendicular to the third direction, the third direction being parallel to the fourth direction or the third direction being flush with the fourth direction.

The further improvement scheme is as follows: the accommodating cavity is communicated with the fixing space, the body part extends from the inner wall of the fixing space into the fixing space, and the body part has elasticity which deflects towards the accommodating cavity.

The further improvement scheme is as follows: the body portion includes a base portion extending from an inner wall of the housing and a connecting portion between the base portion and the hook portion, a width of the base portion in the first direction being greater than a width of the connecting portion in the first direction, the width of the base portion in the first direction being smaller than a width of the hook portion in the first direction.

The further improvement scheme is as follows: the extending length of the body part is greater than or equal to the depth of the accommodating cavity, the hook part comprises a matching surface abutted to the surface of the component 20 and a guiding surface opposite to the matching surface, and the guiding surface extends obliquely and forms an acute angle with the matching surface.

The further improvement scheme is as follows: the components and parts include along first direction interval arrangement's first components and second components, electric tool includes perpendicular to first direction is in the interval setting of third direction fixed knot constructs, every fixed knot constructs first hook portion the mating surface butt in the surface of first components, the mating surface butt of second hook portion in the surface of second components, thereby will simultaneously first, second components are fixed in respectively hold the intracavity.

The further improvement scheme is as follows: a gap is formed between the body part and the first component and between the body part and the second component, and when the first component is fixed to one of the accommodating cavities, the first component abuts against the guide surface 524 of the first hook part so that the fixed structure deflects towards the accommodating cavity accommodating the second component; when the second component is secured to another of the plurality of receiving cavities, the second component abutting the guide surface of the second hook portion deflects the securing structure toward the gap between the body portion and the first component.

The further improvement scheme is as follows: the clamping part comprises three hook parts, and the three hook parts approximately form a Y-shaped structure or a T-shaped structure.

The further improvement scheme is as follows: the holding portion includes at least four of the hook portions, and the at least four of the hook portions are unevenly arranged in a circumferential direction around the body portion.

Compared with the prior art, the utility model has the following beneficial effects: the clamping parts of the fixing structures are arranged to be the hook parts which extend at least along two different directions, so that one fixing structure can fix at least two components at the same time, and the purposes of simplifying the shell structure, improving the compatibility and reducing the cost are achieved.

[ description of the drawings ]

The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings:

FIG. 1 is a schematic view of a portion of a power tool according to a preferred embodiment of the present utility model;

FIG. 2 is an enlarged view of a portion of the power tool of FIG. 1 with a second component removed;

FIG. 3 is an enlarged view of a portion of the power tool of FIG. 2 with the first component removed;

FIG. 4 is a partial cross-sectional view of the securing structure in the power tool of FIG. 1;

fig. 5 (a) is a schematic structural view of a fixing structure according to a second embodiment of the present utility model;

FIG. 5 (b) is a second structural schematic diagram of the fixing structure in the second embodiment of the present utility model;

fig. 6 (a) is a schematic view of a third structure of the fixing structure in the second embodiment of the present utility model;

FIG. 6 (b) is a top view of the securing structure of FIG. 6 (a);

fig. 7 (a) is a schematic structural view of a fixing structure of a third embodiment of the present utility model;

fig. 7 (b) is another structural schematic diagram of the fixing structure in the third embodiment of the present utility model.

Meaning of reference numerals in the drawings:

angle grinder 100 housing 10

Holding chamber 101 holding space 102

Gap 103 middle portion 11

Rear end 12 component 20

First component 21 and second component 22

Gearbox 30 working head assembly 40

Fixing structure 50,50',50 "body portion 51,51"

Base 511 connecting portion 512

Hook portions 52,52',52 "first hook portion 521,521"

Second hook 522,522' mating surface 523

Guide surface 524 third hook portion 525'

Fourth hook 526'

[ detailed description ] of the utility model

The utility model will be described in further detail with reference to the drawings and embodiments.

The terminology used in the present utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The words such as "upper", "lower", "front", "rear", "left", "right", etc., indicating an azimuth or a positional relationship are merely based on the azimuth or the positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, and do not indicate or imply that the devices/elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

Referring to fig. 1, an embodiment of the present utility model relates to a power tool, and an angle grinder 100 is used as a preferred example of the present embodiment. The angle grinder 100 includes a housing 10, a motor (not shown) and a plurality of components 20 accommodated in the housing 10, a gear case 30 coupled to a front end of the housing 10, a transmission structure (not shown) accommodated in the gear case 30, and a working head assembly 40 coupled to a lower end of the gear case 30.

The housing 10 includes a middle portion 11 accommodating a motor (not shown) and connected to the gear case 30, and a rear end portion 12 accommodating a plurality of components 20, the middle portion 11 and the rear end portion 12 forming a substantially cylindrical structure, wherein the diameter of the rear end portion 12 is smaller than that of the middle portion 11, thereby facilitating the user's grip on the rear end portion 12.

As shown in connection with fig. 2-4, the angle grinder 100 includes a securing structure 50 received within the rear end 12 of the housing 10, the securing structure 50 being used to secure a number of components 20 within the housing 10. Specifically, the housing 10 includes a plurality of accommodating cavities 101 for accommodating a plurality of components 20, and a fixing space 102 between two adjacent components 20, and the fixing structure 50 is at least partially located in the fixing space 102. The fixing structure 50 includes a body portion 51 extending from the housing 10 to the fixing space 102 and a holding portion extending from the body portion 51 to the accommodating chamber 101 accommodating the component 20. The catch includes hooks 52 extending in at least two different directions to secure at least two components 20.

The components 20 include a first component 21 and a second component 22 that are arranged at intervals along the first direction, in this embodiment, the first component 21 is a switching element for controlling the start and stop of the motor, and the second component 22 is a capacitor, but in other embodiments, the components 20 may be other electronic devices (such as elements of an inductor, a control board, a micro switch, a display screen, an LED lamp, etc.) or some structural components (such as a cable, a dust-proof device, a magnetic ring, a balancing weight, etc.) for implementing some functions of the angle grinder 100.

In the present embodiment, the fixing structure 50 is configured to be integrally formed with the housing 10, and the body portion 51 thereof includes a base portion 511 extending from the housing 10 and a connecting portion 512 between the base portion 511 and the hook portion 52. The hook 52 includes a first hook 521 extending in a first direction and a second hook 522 extending in a second direction, the first hook 521 being configured to secure the first component 21 in the first direction and the second hook 522 being configured to secure the second component 22 in the second direction. The first direction is parallel to the second direction or the first direction is flush with the second direction, that is, the first hook 521 and the second hook 522 extend in opposite directions, and may be disposed offset from each other or aligned with each other, so long as two components 20 disposed at intervals can be fixed at the same time. Of course, the fixing structure 50 may be made of other materials mounted on the housing 10, as long as it has a certain elasticity.

Specifically, as shown in fig. 1 and 3, the accommodating chamber 101 accommodating the first component 21, the accommodating chamber 101 accommodating the second component 22, and the fixing space 102 in the housing 10 are mutually communicated, and the body portion 51 of the fixing structure 50 extends from the inner wall of the fixing space 102 into the fixing space 102. The base 511 of the fixing structure 50 has a width in the first direction greater than that of the connection portion 512, so that the body portion 51 has elasticity biased toward the accommodating chamber 101, thereby facilitating the installation of the first and second components 21 and 22.

The extending length of the body portion 51 in the fixing space 102 is greater than or equal to the depth of the accommodating cavity 101, so that the hook portion 52 can be clamped on the surface of the component 20 after the component 20 is mounted in the accommodating cavity 101. The width of the base 511 in the first direction is smaller than the width of the hook 52 in the first direction, so that the hook 52 can extend out of the width of the base 511 to hold the component 20. The hook 52 includes a mating surface 523 that abuts against the surface of the component 20 and a guide surface 524 that is provided opposite to the mating surface 523, and the guide surface 524 extends obliquely and forms an acute angle with the mating surface 523, thereby giving the component 20 guiding action when the component 20 is mounted in the housing chamber 101.

In the present embodiment, the angle grinder 100 includes a pair of fixing structures 50 disposed at intervals in a third direction perpendicular to the first direction, the mating surface 523 of the first hook 521 of each fixing structure 50 abuts against the surface of the first component 21, and the mating surface 523 of the second hook 522 abuts against the surface of the second component 22, so that the first and second components 21,22 are stably fixed in the corresponding receiving cavities 101 at the same time. Of course, the number of the fixing structures 50 is not necessarily limited, and may be changed according to practical situations.

In addition, the fixing structure 50 may be provided in an extended structure having a certain length in the third direction, that is, the body portion 51 of the fixing structure 50 extends in the third direction in the fixing space 102 to separate the accommodating chambers 101 of the accommodating chambers 101 and 21 of the first component 21 into two spaces, so long as the fixing structure 50 is ensured to have a certain elasticity in the first direction, thereby facilitating the installation of the components 20 on both sides.

The following describes in detail the component 20 mounting method with reference to fig. 1 to 3:

a gap 103 is provided between the body portion 51 and the first and second components 21,22 for providing an offset space for the fixed structure 50. First, the first component 21 (i.e. the switching element in the present embodiment) is abutted against the guiding surface 524 of the first hook 521 and enters one of the plurality of accommodating cavities 101, the fixing structure 50 deflects toward the accommodating cavity 101 for accommodating the second component 22 under the action of the first component 21, after the first component 21 is installed in the accommodating cavity 101, the first hook 521 rebounds under the action of its own elasticity so that the mating surface 523 of the first hook 521 abuts against the surface of the first component 21 to fix the first component 21, and at this time, a gap is reserved between the first component 21 and the body 51 of the fixing structure 50.

Next, the second component 22 (i.e., the capacitor in the present embodiment) is abutted against the guide surface 524 of the second hook 522 into the other accommodating cavity 101, and the fixing structure 50 is deflected toward the accommodating cavity 101 accommodating the first component 21 by the second component 22, that is, the body portion 51 of the fixing structure 50 is deflected toward the above gap, so that the assembly space of the second component 22 is enlarged, and after the second component 22 is loaded into the accommodating cavity 101, the second hook 522 is rebounded under its own elasticity so that the mating surface 523 of the second hook 522 abuts against the surface of the second component 22 to fix the second component 22.

Fig. 5 (a) and 5 (b) show a second embodiment of the securing structure of the present utility model, wherein the catch of the securing structure 50 'comprises three hooks 52'. The three hooks 52' generally form a "Y" or "T" shaped structure. The "Y" shape of the three hooks 52' may be 120 ° equal in angle between the three hooks 52' as shown in fig. 5 (a), may be a "Y" shape having unequal angles, or may be a substantially "Y" shape having three hooks 52' connected in a staggered manner as shown in fig. 6 (a) and 6 (b). In addition, as shown in fig. 5 (b), two of the three hooks 52 'may be disposed flush, and the other one disposed perpendicular to the two flush hooks 52', thereby forming a substantially "T" shape. The "Y" and "T" shapes described in the present embodiment are not limited to the above-described structure, but may be a structure in which other angles are slightly changed or positions and shapes are slightly changed.

In addition, please refer to the third embodiment of the fixing structure of the present utility model shown in fig. 7 (a), which is different from the first embodiment described above in that the fixing structure 50″ includes a third hook portion 525″ extending in the third direction and a fourth hook portion 526 extending in the fourth direction in addition to the first hook portion 521″ extending in the first direction and the second hook portion 522″ extending in the second direction. Wherein the first direction is perpendicular to the third direction, the third direction is parallel to the fourth direction or the third direction is arranged flush with the fourth direction. Of course, when the holding portion includes four or more hooks 52", the four or more hooks 52" may be equal or may be unevenly arranged in the circumferential direction around the body portion 51", and the four angles may be equal as shown in fig. 7 (a); the case where the four included angles are not equal may be as shown in fig. 7 (b). Of course, the arrangement of the hook portions 52 "is not limited to the above embodiment, and it is an alternative to the present utility model to slightly change the angle, position or shape of the above embodiment, for example, to arrange the hook portions 52" so as to be offset from each other.

The clamping parts of the fixing structure 50 are arranged to be the hook parts 52 which extend along at least two different directions, so that one fixing structure 50 can fix at least two components 20 at the same time, thereby achieving the effects of simplifying the structure of the shell 10, improving the compatibility and reducing the cost.

The present utility model is not limited to the above-described embodiments. Those skilled in the art will readily appreciate that many other alternatives to the power tool of the present utility model are possible without departing from the spirit and scope of the present utility model. The protection scope of the present utility model is subject to the claims.

Claims

1. The electric tool comprises a shell, at least two components contained in the shell and a fixing structure for fixing the at least two components, wherein the shell comprises a plurality of containing cavities for containing the at least two components and a fixing space positioned between two adjacent containing cavities; the method is characterized in that: the fixing structure comprises a body part extending from the inner wall of the shell to the inside of the fixing space and a clamping part protruding from the body part into the accommodating cavity, wherein the clamping part is provided with at least two hooks extending along two different directions to fix at least two components.

2. The power tool of claim 1, wherein: the hook portion includes a first hook portion extending in a first direction and a second hook portion extending in a second direction, the first direction being parallel to the second direction or the first direction being flush with the second direction.

3. The power tool of claim 2, wherein: the hooks include a third hook extending in a third direction and a fourth hook extending in a fourth direction, the first direction being perpendicular to the third direction, the third direction being parallel to the fourth direction or the third direction being flush with the fourth direction.

4. The power tool of claim 2, wherein: the accommodating cavity is communicated with the fixing space, the body part extends from the inner wall of the fixing space into the fixing space, and the body part has elasticity which deflects towards the accommodating cavity.

5. The power tool of claim 4, wherein: the body portion includes a base portion extending from an inner wall of the housing and a connecting portion between the base portion and the hook portion, a width of the base portion in the first direction being greater than a width of the connecting portion in the first direction, the width of the base portion in the first direction being smaller than a width of the hook portion in the first direction.

6. The power tool of claim 4, wherein: the extension length of the body part is greater than or equal to the depth of the accommodating cavity, the hook part comprises a matching surface abutted to the surface of the component and a guide surface arranged opposite to the matching surface, and the guide surface obliquely extends and forms an acute angle with the matching surface.

7. The power tool of claim 6, wherein: the components and parts include along first direction interval arrangement's first components and second components, electric tool includes perpendicular to first direction is in the interval setting of third direction fixed knot constructs, every fixed knot constructs first hook portion the mating surface butt in the surface of first components, the mating surface butt of second hook portion in the surface of second components, thereby will simultaneously first, second components are fixed in respectively hold the intracavity.

8. The power tool of claim 7, wherein: a gap is formed between the body part and the first component and between the body part and the second component, and when the first component is fixed to one of the accommodating cavities, the first component abuts against the guide surface of the first hook part so that the fixing structure deflects towards the accommodating cavity for accommodating the second component; when the second component is secured to another of the plurality of receiving cavities, the second component abutting the guide surface of the second hook portion deflects the securing structure toward the gap between the body portion and the first component.

9. The power tool of claim 1, wherein: the clamping part comprises three hook parts, and the three hook parts approximately form a Y-shaped structure or a T-shaped structure.

10. The power tool of claim 1, wherein: the holding portion includes at least four of the hook portions, and the at least four of the hook portions are unevenly arranged in a circumferential direction around the body portion.