CN209755114U - Hand-held power tool - Google Patents
Hand-held power tool Download PDFInfo
- Publication number
- CN209755114U CN209755114U CN201920109317.7U CN201920109317U CN209755114U CN 209755114 U CN209755114 U CN 209755114U CN 201920109317 U CN201920109317 U CN 201920109317U CN 209755114 U CN209755114 U CN 209755114U
- Authority
- CN
- China
- Prior art keywords
- hand
- machine tool
- power tool
- key
- shaft part
- 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
- 230000005540 biological transmission Effects 0.000 claims description 23
- 230000000694 effects Effects 0.000 description 5
- 210000003811 finger Anatomy 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 1
- 210000004247 hand Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
- 238000004018 waxing Methods 0.000 description 1
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- Portable Power Tools In General (AREA)
Abstract
A hand-held power tool includes a power tool body and a tool piece. The machine tool body includes a circular shaft portion, a grip portion, and a projection portion. The round shaft part is in a cylindrical shape with a wide top and a narrow bottom, the bottom of the round shaft part is provided with a convex shaft part, the convex shaft part is provided with an opening, and the tool piece is connected with the machine tool body through the convex shaft part. The holding part and the convex part are arranged on the arc side of the round shaft part. The hand-held power tool further comprises a first key and a second key. The first key is arranged on the side edge of the round shaft part and is positioned in the rotation inertia direction when the machine tool body operates, and when a user continuously presses the first key by fingers to enable the machine tool to continuously operate, the machine tool body pushes the first key to the fingers pressing the first key along the inertia direction.
Description
Technical Field
the present invention relates to a hand-held power tool, and more particularly, to a hand-held power tool having a small size and designed to be held by a hand.
Background
hand-held power tools, such as polishers or waxing machines, are widely available. In short, it can be differentiated according to the power source, such as pneumatic or plug-in. Or can be distinguished according to the different operation tracks of the machine, such as eccentric type or rotation type. The user makes a selection according to the self-requirement. However, most hand-held power tools on the market today are bulky and heavy, and therefore they still have operational inconveniences for some users and cannot be used with ease.
Therefore, how to simplify the internal mechanism and design a hand-held power tool that facilitates grasping and applying force by a hand and performs operation is a problem that needs to be solved in the industry at present.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems of the prior art, the utility model provides a hand-held machine tool. The hand-held power tool comprises a power tool body and a tool piece. The machine tool main body includes: the round shaft part is in a cylindrical shape with a wide upper part and a narrow lower part, the bottom of the round shaft part is provided with a convex shaft part, and the convex shaft part is provided with an opening; a grip portion provided on an arc side of the circular shaft portion; and a convex portion provided on the arc side of the circular shaft portion. The tool member is connected to the machine tool body through the protruding shaft portion. The hand-held machine tool further comprises a first key arranged on the side edge of the round shaft part. The first key is located in the rotating inertia direction when the machine tool body operates, and when a user continuously presses the first key by a finger to drive the machine tool body to continuously operate, the machine tool body pushes the first key to the finger pressing the first key along the inertia direction.
In an embodiment of the present invention, the housing of the machine tool main body is formed by vertically combining two hollow housings, and the two hollow housings form a receiving space therein when vertically combined.
The utility model discloses an in the embodiment, the machine tool main part still includes transmission module, and transmission module sets up in the round axle portion, and first button is used for starting transmission module.
The utility model discloses an in the embodiment, transmission module includes transmission shaft spare and motor, and transmission shaft spare sets up the trompil in protruding axial region with connecting tool spare, and the motor setting is in the convex part.
The utility model discloses an in the embodiment, still include the second button, set up the circular arc side at the round axle part and be close to the position of convex part for set for transmission module's motor speed.
The power module is disposed in the holding portion for providing power to the transmission module.
Compare in prior art in the great and heavier and need both hands to hold handheld machine tool that uses, the utility model discloses a handheld machine tool has effectively simplified internal mechanism, makes its whole size reduce and can let the user hold with the one hand when the operation. Furthermore, the utility model discloses a button design can also let the user more laborsaving when operating handheld machine tool, is the improvement that has the practicality.
Drawings
fig. 1-1 is a first perspective view of a machine tool body of a hand-held machine tool according to the invention.
Fig. 1-2 are schematic views of a second perspective of the machine tool body of the hand-held machine tool according to the invention.
Fig. 2 is an exploded view of the hand-held power tool of the present invention.
Fig. 3 is a schematic view of a user holding the machine tool body.
Description of the component reference numbers:
1 machine tool body
11 round shaft part
111 protruding shaft part
112 open pores
12 grip part
13 convex part
14 Transmission module
141 drive shaft
142 motor
15 power supply module
16 indicating lamp
2 tools
3 first key
4 second key
a. b hollow shell
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description. The present invention may be practiced or utilized in other different embodiments, and various details may be set forth in the description in order to provide a thorough understanding of the present invention.
It should be understood that the structures, ratios, sizes, etc. shown in the drawings attached to the present specification are only used for matching with the contents disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any modification of the structures, changes of the ratio relationship, or adjustment of the sizes, should still fall within the scope that the technical contents disclosed in the present invention can cover without affecting the efficacy that the present invention can produce and the purpose that the present invention can achieve. In addition, the terms "above", "below", "inside" and "one" are used in the present specification for convenience of description and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the structures may be changed or adjusted without substantial technical changes.
Please refer to fig. 1-1 and fig. 1-2, which are a first view schematic diagram and a second view schematic diagram of a machine tool main body of a hand-held machine tool according to the present invention, respectively. The hand-held power tool of the present invention mainly includes a power tool main body 1 and a tool (described later) connected thereto. As shown in the drawing, the machine tool body 1 includes a round shaft portion 11, a grip portion 12, and a projection portion 13. The round shaft 11 is a cylindrical shape with a wide top and a narrow bottom when viewed from the outside. The bottom of the round shaft part 11 is provided with a protruding shaft part 111, and the protruding shaft part 111 is provided with an opening 112. The grip portion 12 and the projection 13 are both provided on the arc-shaped side of the circular shaft portion 11. The main body 1 of the machine tool is divided into the circular shaft 11, the grip 12, and the protrusion 13 connected to each other, but the housing of the main body 1 of the machine tool is formed by vertically combining two hollow housings in manufacturing the housings. In other words, when the two hollow shells are combined up and down, an accommodating space is formed inside the combined component.
Referring to fig. 2, fig. 2 is an exploded view of the hand-held power tool of the present invention. Fig. 2 shows the housing of the machine tool body 1 assembled from top to bottom with two hollow shells a, b. The machine tool body 1 can comprise a transmission module 14. A transmission module 14 is provided in the spindle portion 11 for supplying power to the tool piece 2 connected to the machine tool body 1. The transmission module 14 mainly comprises a transmission shaft 141 and a motor 142, the transmission shaft 141 is disposed in the opening 112 of the protruding shaft portion 111 for connecting the tool element 2, and the motor 142 is disposed in the protruding portion 13. The transmission module 14 may further include a worm, a planetary gear set and a control board in addition to the transmission shaft 141 and the motor 142, and the design of these mechanism components reduces the number of internal components of the machine tool body 1, thereby achieving the effect of reducing the size of the machine tool body 1 without affecting the magnitude of the output power.
The machine tool body 1 may also comprise a power supply module 15. A power module 15 is disposed within the grip portion 12 and provides power to the transmission module 14. The power module 15 may be a rechargeable battery or a power cord for connecting with an external power source, but is not limited thereto.
In an embodiment of the present invention, the hand-held power tool may further include a first button 3 and a second button 4. The first button 3 is disposed on the arc side of the round shaft 11 and between the grip 12 and the protrusion 13. The user presses the first button 3 to activate the actuator module 14, and releases the first button 3 to deactivate the actuator module 14. The drive module 14, when activated, drives the tool element 2 connected to the drive shaft element 141 into rotation. The second button 4 is disposed on the arc side of the circular shaft 11 and near the protrusion 13, and is used for setting the rotation speed of the motor 142 of the transmission module 14. As shown in the figure, the first button 3 and the second button 4 are respectively disposed on two sides of the convex portion 13. Furthermore, the utility model discloses still can set up pilot lamp 16 on the round shaft part 11 top of machine tool main part 1 for show the rotational speed in different stages.
In the present invention, the positional arrangement of the components inside the machine tool body 1, for example, the transmission module 14 is installed in the round shaft portion 11 and the power module 15 is installed in the grip portion 12, which can contribute to the adjustment of the center of gravity of the entire hand-held machine tool. In addition to facilitating the grip of the user, this may also have the effect of counteracting the rotational torque of the machine tool. Referring to fig. 3, fig. 3 is a schematic view of a user holding a machine tool body. The user is operating the utility model discloses a hand-held power tool can adopt different gripping modes. One is a position of direct hand grip on the grip portion 12. Alternatively, as shown in fig. 3, the hand (dotted line) is grasped on the shaft 11, the palm is at the center of the shaft 11, and the fingers are respectively grasped around the sides of the shaft.
Further, as shown in fig. 3, the right hand is taken as a dominant hand, but not limited thereto. When the user grips the round shaft 11, the thumb also presses the first button 3. The moment of inertia is generated by the rotation of the tool part 2, and the machine tool body 1 is subjected to this moment of inertia to rotate in the opposite direction to the rotation of the tool part 2 (in the direction of the two arrows in fig. 3, respectively). The user therefore has to exert a force to hold the machine tool body 1, so that the machine tool body 1 is prevented from rotating under the influence of inertia. At the same time, when starting the hand-held power tool, the user needs to continuously press the first button 3 (start button) to continue the operation of the power tool. The first pushbutton 3 is located in the inertial direction of the rotation of the machine tool body 1. When the user continuously presses the first key 3 with a finger to make the machine tool body 1 drive the tool element 2 to continuously operate, the machine tool body 1 is influenced by inertia and rotates along the inertia direction, and the first key 3 is just pushed to the finger of the user. Therefore, the user can easily and continuously press the first key 3 by means of the rotation trend of the machine tool main body 1 without particularly exerting force to press, so that the labor-saving effect is achieved, and the phenomenon that the user presses the key by continuously exerting force to cause hand stiffness or fatigue and ache is avoided.
To sum up, the utility model provides a hand-held machine tool, including machine tool main part and tool. The appearance design of the machine tool main body can facilitate hand grasping, and by means of the arrangement of the internal components of the machine tool and the design of the positions of the keys, the torque generated when the hand-held machine tool rotates is effectively offset, and the labor-saving effect is achieved.
The above-described embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications to the above would be obvious to those of ordinary skill in the art, but would not bring the invention so modified beyond the spirit and scope of the appended claims. Therefore, the protection scope of the present invention should be as set forth in the claims.
Claims (6)
1. A hand-held power tool, characterized in that it comprises:
A machine tool body comprising:
The round shaft part is cylindrical, a convex shaft part is arranged at the bottom of the round shaft part, and the convex shaft part is provided with an opening;
A grip portion provided on a side of the round shaft portion; and
A convex portion provided on a side of the circular shaft portion;
A tool member connected to the tool body through the protruding shaft portion; and
The first key is arranged on the side edge of the round shaft part and is positioned in the rotating inertia direction when the machine tool main body operates, and when a user continuously presses the first key with a finger to drive the machine tool main body to continuously operate the tool piece, the machine tool main body pushes the first key to the finger pressing the first key along the inertia direction.
2. The hand-held power tool of claim 1, wherein the housing of the power tool body is formed by two hollow bodies assembled one above the other, and the two hollow bodies form a receiving space therein when assembled one above the other.
3. The hand-held power tool of claim 2, wherein the power tool body further comprises a transmission module disposed within the spindle portion, and wherein the first button is configured to actuate the transmission module.
4. The hand-held power tool of claim 3, wherein the drive module includes a drive shaft member disposed in the opening of the nose portion for connection to the tool member and a motor disposed within the nose portion.
5. The hand-held power tool of claim 4, further comprising a second button disposed on a side of the circular shaft portion adjacent to the protrusion for setting a motor speed of the transmission module.
6. the hand-held power tool of claim 3, wherein the power tool body further comprises a power module disposed within the grip portion for providing the transmission module power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920109317.7U CN209755114U (en) | 2019-01-23 | 2019-01-23 | Hand-held power tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920109317.7U CN209755114U (en) | 2019-01-23 | 2019-01-23 | Hand-held power tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209755114U true CN209755114U (en) | 2019-12-10 |
Family
ID=68749931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920109317.7U Expired - Fee Related CN209755114U (en) | 2019-01-23 | 2019-01-23 | Hand-held power tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209755114U (en) |
-
2019
- 2019-01-23 CN CN201920109317.7U patent/CN209755114U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191210 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |