CN219967883U - Damping mechanism for electric tool and electric tool - Google Patents
Damping mechanism for electric tool and electric tool Download PDFInfo
- Publication number
- CN219967883U CN219967883U CN202320777032.7U CN202320777032U CN219967883U CN 219967883 U CN219967883 U CN 219967883U CN 202320777032 U CN202320777032 U CN 202320777032U CN 219967883 U CN219967883 U CN 219967883U
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- mounting portion
- elastic
- damping mechanism
- elastic body
- rear end
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- 238000013016 damping Methods 0.000 title claims abstract description 28
- 229920001971 elastomer Polymers 0.000 description 13
- 239000000806 elastomer Substances 0.000 description 12
- 238000009434 installation Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- -1 plank Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
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- Vibration Prevention Devices (AREA)
Abstract
The utility model discloses a damping mechanism for an electric tool and the electric tool, which comprise an outer casing for holding, wherein an inner casing for accommodating a driving device is arranged in the outer casing, a first elastic component and a second elastic component are arranged between the inner casing and the outer casing, the first elastic component is tightly matched between the inner casing and the outer casing, and the second elastic component is loosely matched between the inner casing and the outer casing. The utility model can reduce the vibration of the outer shell, thereby improving the comfort.
Description
Technical Field
The present utility model relates to the field of power tools, and more particularly, to a damping mechanism for a power tool and a power tool.
Background
The multifunctional machine is called as a universal machine, and the working principle is to realize multifunctional operation by small-amplitude high-frequency vibration. Specifically, current multifunctional machine includes the casing and sets up the drive assembly in the casing, and when using, drive assembly's output connects the saw bit, holds the casing with the hand, and drive assembly drive saw bit produces low-amplitude high frequency vibration, and the saw bit type is many, can realize the operation operations such as cutting, polishing, the spatula of common materials such as metal, plank, cement board, PVC pipe, the wide application is in aspects such as house ornamentation, carpenter DIY, after-sales maintenance. In the use process of the existing multifunctional machine, the vibration of the driving assembly is transmitted to the shell, in addition, the reaction force of the object in processing to the saw blade is transmitted to the shell through the saw blade and the driving device, and finally the vibration of the shell is large, so that the use comfort of a user is poor.
Disclosure of Invention
The utility model provides a damping mechanism for an electric tool, which can reduce the vibration of an outer shell and improve the comfort, and aims to solve the defects of large vibration and poor comfort of the traditional multifunctional machine.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the damping mechanism for the electric tool comprises an outer casing for holding, an inner casing for accommodating a driving device is arranged in the outer casing, a first elastic component and a second elastic component are arranged between the inner casing and the outer casing, the first elastic component is tightly matched between the inner casing and the outer casing, and the second elastic component is loosely matched between the inner casing and the outer casing.
Through the arrangement, the vibration of the outer shell can be reduced, so that the comfort of a user is improved. In the utility model, when the first elastic component is tightly matched between the outer shell and the inner shell, the first elastic component can immediately generate corresponding deformation to damp the outer shell when the driving device operates with low power and vibrates with low amplitude. The second elastic component is loose between the inner shell and the outer shell, namely, the pressure between the second elastic component and the inner shell is basically zero, the pressure between the second elastic component and the outer shell is basically zero, the second elastic component basically does not deform when the driving device runs under low power, and when the driving device runs under high power, the amplitude of vibration of the inner shell is increased, the second elastic component deforms to absorb the vibration of the inner shell so as to help reduce the vibration of the outer shell, and in addition, the second elastic component also inhibits the relative rotation between the inner shell and the outer shell, so that the stability between the inner shell and the outer shell is better.
Further, the deformation of one side of the first elastic component close to the inner shell is 0.3-0.5mm; or, the deformation amount of one side of the first elastic component close to the outer shell is 0.3-0.5mm; or the sum of the deformation amount of the side of the first elastic component close to the inner shell and the side close to the outer shell is 0.3-0.5mm. Through the arrangement, the first elastic component has larger stress in the initial process, and meanwhile, when the driving device and the inner casing vibrate, the first elastic component is easy to deform so as to generate better vibration reduction effect on the outer casing.
Further, the first elastic component comprises one or more first elastic bodies, the inner shell comprises a mounting portion, one end of the mounting portion, which is close to the output end of the driving device, is the front end, the other end of the mounting portion is the rear end, one or more first elastic bodies are arranged on two opposite sides of the front end of the mounting portion, the first elastic component further comprises one or more second elastic bodies, and a plurality of second elastic bodies are sequentially arranged at the rear end of the mounting portion along the circumferential direction. Through the arrangement, the mounting part is used for mounting the driving device, and the output end of the driving device is close to the front end of the mounting part, so that the front end of the mounting part vibrates more severely, and the first elastic body is arranged at the front end and the rear end of the mounting part so as to reduce the vibration at the two ends of the mounting part.
Further, the second elastic component comprises one or more third elastic bodies, and one or more third elastic bodies are arranged on two opposite sides of the front end and/or the rear end of the mounting part.
Further, the first elastomer is the long circular that extends along the extending direction of installation department, and the first elastomer is provided with a plurality of first constant head tanks, and interior casing or installation department fixedly connected with a plurality of first reference columns, first reference column at least partially set up in corresponding first constant head tank to realize the location of first elastomer. Through the arrangement, the area of the first elastic body at the front end is increased according to the condition that the front end of the mounting part vibrates greatly, and the vibration reduction effect of the front end is increased, so that the vibration of the corresponding position of the outer shell is reduced. And the first positioning column plays a limiting role on the first elastic body.
Further, the number of the second elastic bodies is four, and the second elastic bodies are all arc-shaped and uniformly arranged along the circumferential direction of the mounting part. Through above-mentioned setting for the second elastomer of the rear end of installation department can support the rear end along the even circumference of rear end, thereby make the damping effect of rear end comparatively even, the rear end all has better damping effect when vibrating along different radial promptly.
Further, the front end fixedly connected with downwardly extending output part of installation department for the output of drive arrangement downwardly extending, the opposite both sides of output part along the width direction of installation department all are provided with the third elastomer. Through the arrangement, the mounting part and the output part form an L-shaped structure, when the driving device runs at high power, the output end of the driving device vibrates greatly to drive the output part to vibrate transversely, and the third elastic bodies are arranged on the two opposite sides of the output part to absorb the transverse vibration of the output part so as to inhibit the inner casing from rotating in the outer casing.
Further, the rear end of installation department all is provided with the third elastomer in the opposite both sides of the width direction of installation department, and the outside of installation department is provided with first spacing groove, and the third elastomer of the rear end of installation department is provided with the second constant head tank, and outer casing fixedly connected with second reference column, second reference column at least part set up in the second constant head tank, and the third elastomer at least part sets up in first spacing groove. Through the arrangement, the third elastic body at the rear end of the mounting part is mounted between the mounting part and the outer shell, the outer side of the third elastic body is basically fixed on the inner side of the outer shell by the second positioning column, the inner side of the third elastic body is basically fixed on the mounting part by the first limiting groove, and when the mounting part rotates relative to the outer shell, the third elastic body deforms to inhibit the rotation of the mounting part.
Further, the third elastomer of output is provided with the third constant head tank, and outer casing fixedly connected with third reference column, and the outside of output is provided with the second spacing groove, and the third reference column sets up in the third constant head tank at least partially, and the third elastomer sets up in the second spacing groove at least partially. Through above-mentioned setting for the stable installation of third elastomer is between output and outer casing, and third reference column and second spacing groove play spacing effect to the third elastomer.
An electric tool comprises the damping mechanism. When an operator uses the electric tool, the electric tool vibrates little and has good comfort.
Drawings
Fig. 1 is an exploded view of a damping mechanism for a power tool of an embodiment.
Fig. 2 is a sectional view of the damping mechanism for the electric power tool of the embodiment taken along the rear end of the mounting portion.
Fig. 3 is a cross-sectional view of a front end of a damping mechanism for a power tool of an embodiment near a mounting portion.
Fig. 4 is an exploded view of another embodiment of a damping mechanism for a power tool.
Detailed Description
The technical scheme of the utility model is further specifically described below through examples and with reference to the accompanying drawings.
Referring to fig. 1 to 4, a damping mechanism for a power tool includes an outer housing 11 for holding, an inner housing 12 for accommodating a driving device is provided in the outer housing 11, a first elastic member and a second elastic member are provided between the inner housing 12 and the outer housing 11, the first elastic member is tightly fitted between the inner housing 12 and the outer housing 11, and the second elastic member is loosely fitted between the inner housing 12 and the outer housing 11.
Through the arrangement, the vibration of the outer shell can be reduced, so that the comfort of a user is improved. Specifically, when the utility model is used, the output end of the driving device is connected with the saw blade, then the driving device drives the saw blade to vibrate at high frequency, the inner shell correspondingly vibrates when the driving device vibrates, when the first elastic component is arranged between the inner shell and the outer shell, the vibrating inner shell is matched with the outer shell to reciprocally squeeze the first elastic component, and the first elastic component reciprocally deforms to absorb part of the vibration energy of the inner shell, so that the vibration energy transmitted to the outer shell by the inner shell is reduced, the vibration of the outer shell is reduced, and the comfort of a user is improved. The driving device refers to an existing driving component, and the material of the first elastic component can be PU or silica gel or rubber and can be selected according to actual conditions. In the utility model, when the first elastic component is tightly matched between the outer shell 11 and the inner shell 12, the first elastic component can be deformed correspondingly immediately to damp the outer shell when the driving device operates with low power and vibrates with low amplitude. The second elastic member is loosely fitted between the inner casing 12 and the outer casing, i.e., the pressure between the second elastic member and the inner casing is substantially zero, the pressure between the second elastic member and the outer casing 11 is substantially zero, the second elastic member is not deformed substantially when the driving apparatus is operated with a small power, and the amplitude of vibration of the inner casing is increased when the driving apparatus is operated with a large power, the second elastic member is deformed to absorb the vibration of the inner casing to help reduce the vibration of the outer casing, and in addition, the second elastic member also suppresses the relative rotation between the inner casing and the outer casing, so that the stability between the inner casing and the outer casing is better.
As one implementation, the deformation amount of the side of the first elastic component close to the inner shell 12 is 0.3-0.5mm; or, the deformation amount of one side of the first elastic component close to the outer shell 11 is 0.3-0.5mm; or, the sum of the deformation amounts of the side of the first elastic member near the inner housing 12 and the side near the outer housing 11 is 0.3-0.5mm.
Through the arrangement, the first elastic component has larger stress in the initial process, and meanwhile, when the driving device and the inner casing vibrate, the first elastic component is easy to deform so as to generate better vibration reduction effect on the outer casing.
As one implementation manner, the first elastic component includes one or more first elastic bodies 13, the inner casing 12 includes a mounting portion 121, one end of the mounting portion 121 near the output end of the driving device is a front end, the other end of the mounting portion 121 is a rear end, one or more first elastic bodies 13 are disposed on two opposite sides of the front end of the mounting portion 121, the first elastic component further includes one or more second elastic bodies 14, and a plurality of second elastic bodies 14 are sequentially disposed at the rear end of the mounting portion 121 along the circumferential direction.
With the above arrangement, the mounting portion 121 is used for mounting the driving device, and the output end of the driving device is close to the front end of the mounting portion, so that the front end of the mounting portion vibrates more severely, and the first elastic body 13 and the second elastic body 14 are arranged at the front end and the rear end of the mounting portion to reduce the vibrations at both ends of the mounting portion.
As one implementation, the second elastic assembly includes one or more third elastic bodies 15, and opposite sides of the front and/or rear ends of the mounting portion 121 are provided with one or more third elastic bodies 15.
As an implementation manner, the first elastic body 13 is in an oblong shape extending along the extending direction of the mounting portion 121, and the first elastic body 13 is provided with a plurality of first positioning grooves 131, the inner casing 12 or the mounting portion 121 is fixedly connected with a plurality of first positioning columns 122, and the first positioning columns 122 are at least partially arranged in the corresponding first positioning grooves 131, so as to realize positioning of the first elastic body 13.
With the above arrangement, for the case where the vibration of the front end of the mounting portion 121 is large, the area of the first elastic body 13 of the front end is increased, and the vibration damping effect of the front end is increased, thereby reducing the vibration of the corresponding position of the outer casing 11. The first positioning column 122 plays a role of limiting the first elastic body 13, specifically, two ends of the first elastic body 13 at the front end of the mounting portion 121 are provided with a first positioning groove 131, and the first positioning column 122 may be disposed on the inner casing 12 or may be disposed on the mounting portion 121, where the first positioning column 122 is disposed on the mounting portion 121.
As one implementation, the number of the second elastic bodies 14 is four and each is circular arc, and the second elastic bodies 14 are uniformly arranged along the circumferential direction of the mounting portion 121.
Through the above arrangement, the second elastic body 14 at the rear end of the mounting portion 121 can uniformly support the rear end along the circumferential direction of the rear end, so that the vibration damping effect of the rear end is uniform, that is, the rear end has better vibration damping effect when vibrating along different radial directions.
As one implementation manner, the front end of the mounting portion 121 is fixedly connected with a downward extending output portion 124, so that the output end of the driving device extends downward, and the opposite sides of the output portion 124 along the width direction of the mounting portion 121 are provided with the third elastic bodies 15.
Through the above arrangement, the mounting portion 121 and the output portion 124 form an L-shaped structure, when the driving device operates at a high power, the output end of the driving device vibrates greatly to drive the output portion 124 to vibrate transversely, and the third elastic bodies 15 are disposed on opposite sides of the output portion 124 to absorb the vibration of the output portion 124 transversely, so as to inhibit the inner housing 12 from rotating in the outer housing 11.
As an implementation manner, the rear end of the mounting portion 121 is provided with the third elastic body 15 on two opposite sides of the width direction of the mounting portion 121, the outer side of the mounting portion 121 is provided with the first limiting groove 1211, the third elastic body 15 at the rear end of the mounting portion 121 is provided with the second positioning groove 151, the outer casing 11 is fixedly connected with the second positioning column 111, the second positioning column 111 is at least partially arranged in the second positioning groove 151, and the third elastic body 15 is at least partially arranged in the first limiting groove 1211.
With the above arrangement, the third elastic body 15 at the rear end of the mounting portion 121 is mounted between the mounting portion 121 and the outer casing 11, the second positioning column 111 makes the outer side of the third elastic body 15 substantially fixed on the inner side of the outer casing 11, and the first limiting groove 1211 makes the inner side of the third elastic body 15 substantially fixed on the mounting portion 121, and when the mounting portion 121 rotates relative to the outer casing 11, the third elastic body 15 deforms to restrain the mounting portion 121 from rotating.
As an implementation manner, the third elastic body 15 of the output portion 124 is provided with a third positioning groove 152, the outer casing 11 is fixedly connected with a third positioning column 112, the outer side of the output portion 124 is provided with a second limiting groove 1241, the third positioning column 112 is at least partially disposed in the third positioning groove 152, and the third elastic body 15 is at least partially disposed in the second limiting groove 1241. Through the above arrangement, the third elastic body 15 is stably installed between the output portion 124 and the outer casing 11, and the third positioning post 112 and the second limiting groove 1241 play a limiting role on the third elastic body 15.
An electric tool comprises the damping mechanism. When an operator uses the electric tool, the electric tool vibrates little and has good comfort.
It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims.
Claims (10)
1. The damping mechanism for the electric tool is characterized by comprising an outer casing (11) used for holding, an inner casing (12) used for accommodating a driving device is arranged in the outer casing (11), a first elastic component and a second elastic component are arranged between the inner casing (12) and the outer casing (11), the first elastic component is tightly matched between the inner casing (12) and the outer casing (11), and the second elastic component is loosely matched between the inner casing (12) and the outer casing (11).
2. A damping mechanism for a power tool according to claim 1, wherein the amount of deformation of the side of the first elastic member near the inner housing (12) is 0.3-0.5mm, or the amount of deformation of the side of the first elastic member near the outer housing (11) is 0.3-0.5mm; or, the sum of the deformation amounts of the side of the first elastic component close to the inner shell (12) and the side close to the outer shell (11) is 0.3-0.5mm.
3. A damping mechanism for a power tool according to claim 1, wherein the first elastic assembly comprises one or more first elastic bodies (13), the inner housing (12) comprises a mounting portion (121), one end of the mounting portion (121) close to the output end of the driving device is a front end, the other end of the mounting portion (121) is a rear end, one or more first elastic bodies (13) are arranged on two opposite sides of the front end of the mounting portion (121), the first elastic assembly further comprises one or more second elastic bodies (14), and a plurality of second elastic bodies (14) are arranged at the rear end of the mounting portion (121) in sequence in the circumferential direction.
4. A damping mechanism for a power tool according to claim 3, wherein the second resilient assembly comprises one or more third resilient bodies (15), the mounting portion (121) being provided with one or more of the third resilient bodies (15) on opposite sides of the front and/or rear end.
5. The damping mechanism for a power tool according to claim 4, wherein the first elastic body (13) is in an oblong shape extending along the extending direction of the mounting portion (121), and the first elastic body (13) is provided with a plurality of first positioning grooves (131), the inner housing (12) or the mounting portion (121) is fixedly connected with a plurality of first positioning posts (122), and the first positioning posts (122) are at least partially disposed in the corresponding first positioning grooves (131) to realize positioning of the first elastic body (13).
6. The damping mechanism for a power tool according to claim 5, wherein the number of the second elastic bodies (14) at the rear end of the mounting portion (121) is four and each is circular arc-shaped, and the second elastic bodies (14) at the rear end of the mounting portion (121) are uniformly arranged in the circumferential direction of the mounting portion (121).
7. A damping mechanism for a power tool according to claim 4, wherein the front end of the mounting portion (121) is fixedly connected with a downwardly extending output portion (124) for downwardly extending the output end of the driving device, and the output portion (124) is provided with the third elastic body (15) on opposite sides in the width direction of the mounting portion (121).
8. The damping mechanism for a power tool according to claim 7, wherein the rear end of the mounting portion (121) is provided with the third elastic body (15) on both opposite sides in the width direction of the mounting portion (121), a first stopper groove (1211) is provided on the outer side of the mounting portion (121), the third elastic body (15) at the rear end of the mounting portion (121) is provided with a second stopper groove (151), the outer housing (11) is fixedly connected with a second stopper post (111), the second stopper post (111) is at least partially provided in the second stopper groove (151), and the third elastic body (15) is at least partially provided in the first stopper groove (1211).
9. The damping mechanism for a power tool according to claim 7, wherein a third positioning groove (152) is formed in a third elastic body (15) of the output portion (124), the outer casing (11) is fixedly connected with a third positioning column (112), a second limiting groove (1241) is formed in the outer side of the output portion (124), the third positioning column (112) is at least partially disposed in the third positioning groove (152), and the third elastic body (15) is at least partially disposed in the second limiting groove (1241).
10. A power tool comprising a damping mechanism as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320777032.7U CN219967883U (en) | 2023-03-31 | 2023-03-31 | Damping mechanism for electric tool and electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320777032.7U CN219967883U (en) | 2023-03-31 | 2023-03-31 | Damping mechanism for electric tool and electric tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219967883U true CN219967883U (en) | 2023-11-07 |
Family
ID=88592363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320777032.7U Active CN219967883U (en) | 2023-03-31 | 2023-03-31 | Damping mechanism for electric tool and electric tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219967883U (en) |
-
2023
- 2023-03-31 CN CN202320777032.7U patent/CN219967883U/en active Active
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