CN211009883U - A seal structure and electric tool for axle spare - Google Patents
A seal structure and electric tool for axle spare Download PDFInfo
- Publication number
- CN211009883U CN211009883U CN201921924210.4U CN201921924210U CN211009883U CN 211009883 U CN211009883 U CN 211009883U CN 201921924210 U CN201921924210 U CN 201921924210U CN 211009883 U CN211009883 U CN 211009883U
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- sealing
- shaft
- seal structure
- seal
- cylinder
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Abstract
The utility model discloses a sealing structure and an electric tool for a shaft part, wherein the sealing structure comprises a cylinder and a sealing element which are sleeved outside the shaft part, a mounting groove is arranged in the cylinder, and the sealing element is mounted in the mounting groove; the sealing piece comprises at least two sealing ribs in interference fit with the shaft piece, and the sealing ribs are arranged along the axial direction of the shaft piece at intervals. The sealing element is arranged between the outer walls of the cylinder and the shaft element, and the sealing rib in interference fit with the shaft element ensures the sealing effect on the shaft element. The sealing ribs are arranged to be at least two at intervals along the axial direction, so that the sealing effect of the sealing element is further improved, and the sealing performance of the shaft element in the movement process is improved.
Description
Technical Field
The utility model relates to an electric tool, in particular to a seal structure and electric tool for axle piece.
Background
Electric tools are used for concrete breaking, chiseling, digging, cutting, and in assembling pipes, cabling, mechanical installation, plumbing, interior finishing, and other civil engineering operations. Because the operating mode is complicated, the grease in the electric tool air cavity flows out easily, reduces the impact force and the service life of the electric tool.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, an embodiment of the utility model provides a seal structure and electric tool for axle piece.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
the embodiment of the utility model provides a seal structure for shaft, the seal structure includes a cylinder and a sealing element which are sleeved outside the shaft, a mounting groove is arranged in the cylinder, and the sealing element is mounted in the mounting groove;
the sealing piece comprises at least two sealing ribs in interference fit with the shaft piece, and the sealing ribs are arranged along the axial direction of the shaft piece at intervals.
Further, the sealing structure further comprises a convex rib and a groove matched with the convex rib, the convex rib is located on one of the mounting groove and the sealing element, and the groove is located on the other of the mounting groove and the sealing element.
Further, the sealing structure further comprises an elastic ring sleeved outside the shaft, and one end of the elastic ring is abutted to the end of the cylinder.
Further, the sealing structure further comprises a gasket sleeved outside the shaft, and the gasket is abutted to the other end of the elastic ring.
Furthermore, the elastic ring is made of rubber.
Further, the sealing member includes three sealing ribs.
Further, the seal member has elasticity.
Further, the sealing element is made of rubber.
The embodiment of the utility model provides an electric tool is still provided, electric tool includes arbitrary kind of seal structure of impact rod and the aforesaid, the axle piece does the impact rod.
Furthermore, be equipped with spacing face on the impact rod, the gasket is located spacing face with between the elastic ring, just the gasket with spacing face butt.
The embodiment of the utility model provides a seal structure and electric tool for axle piece, the sealing member is located between the outer wall of cylinder and axle piece, has guaranteed the sealed effect to the axle piece with axle piece interference fit's sealed muscle. The sealing ribs are arranged to be at least two at intervals along the axial direction, so that the sealing effect of the sealing element is further improved, and the sealing performance of the shaft element in the movement process is improved.
Drawings
Fig. 1 is an exploded view of a seal structure and a shaft assembly structure in an embodiment of the present invention;
fig. 2 is a cross-sectional view of the assembly structure of fig. 1.
Reference numerals:
an impact lever 10; a limiting surface 11; a seal structure 20; a cylinder 21; a mounting groove 211; a seal 22; a sealing rib 221; an elastic ring 23; a gasket 24; a convex rib 25; a recess 26.
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 embodiment of the utility model provides a seal structure for shaft spare, seal structure 20 includes the cylinder 21 and the sealing member 22 of cover-mounted outside the shaft spare, is equipped with mounting groove 211 in the cylinder 21, and the sealing member 22 is installed in mounting groove 211; the sealing member 22 includes at least two sealing ribs 221 in interference fit with the shaft member, and the at least two sealing ribs 221 are arranged at intervals along the axial direction of the shaft member.
As shown in fig. 1 and 2, the sealing member 22 is sleeved on the shaft member, and the inner wall of the cylinder 21 is provided with a mounting groove 211 for avoiding and accommodating the sealing member 22. Meanwhile, the side walls at the two ends of the mounting groove 211 limit the movement of the sealing element 22 in the circumferential direction, which is beneficial to improving the sealing effect of the sealing element 22. The sealing ribs 221, which are in interference fit with the shaft member, ensure the sealing effect on the shaft member. The provision of at least two axially spaced sealing ribs 221 further improves the sealing effect of the seal 22 and improves the sealing of the shaft during movement.
Further, the sealing member 22 includes three sealing ribs 221. Fig. 1 and 2 exemplarily show three sealing ribs 221, and the number of the sealing ribs 221 may be changed as needed.
In the preferred embodiment of the present invention, the sealing member 22 has elasticity, and the elastic sealing member 22 has better sealing effect. For example, the sealing member 22 is made of rubber.
Further, the seal structure 20 further includes a rib 25 and a groove 26 matching with the rib 25, the rib 25 is located on one of the mounting groove 211 and the sealing member 22, and the groove 26 is located on the other of the mounting groove 211 and the sealing member 22.
Fig. 2 exemplarily shows that the rib 25 is provided on the inner wall of the mounting groove 211 and the groove 26 is provided on the sealing member 22, and when the sealing member 22, the cylinder 21 and the shaft member are assembled, the fitting of the rib 25 with the groove 26 further improves the reliability of the installation of the sealing member 22.
In some embodiments of the present invention, the sealing structure 20 further includes an elastic ring 23 sleeved outside the shaft, and one end of the elastic ring 23 abuts against the end of the cylinder 21. Further, the elastic ring 23 is made of rubber.
Further, the sealing structure 20 further includes a gasket 24 disposed outside the shaft, and the gasket 24 abuts against the other end of the elastic ring 23.
The embodiment of the utility model provides an electric tool is still provided, and electric tool includes impact rod 10 and any kind of above-mentioned seal structure 20, and the axle piece is impact rod 10.
During assembly, the sealing member 22 is mounted in the mounting groove 211 in the cylinder 21, and the impact rod 10 is mounted in the inner hole of the cylinder 21 after being sleeved with the gasket 24 and the rubber elastic ring 23.
The utility model discloses electric tool includes but not limited to electric hammer, electric pick. The striking rod 10 moves in the axial direction thereof to generate an impact force. As shown in fig. 1 and 2, in operation, the striking rod 10 moves axially back and forth, and the striking rod 10 is clasped by three interference circumferential rubber ribs (i.e., the sealing ribs 221) inside the sealing member 22 to achieve an oil leakage prevention function.
Further, as shown in fig. 1 and 2, the impact bar 10 is provided with a limiting surface 11, a gasket 24 is located between the limiting surface 11 and the elastic ring 23, and the gasket 24 abuts against the limiting surface 11.
To sum up, the utility model discloses electric tool reliability is high, makes simply, has reduced the oil leak, has prolonged life.
Other structures and operations of the sealing structure and the power tool according to the embodiments of the present invention are understood and easily implemented by those skilled in the art, and thus will not be described in detail.
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 (10)
1. A sealing structure for a shaft part is characterized by comprising an air cylinder and a sealing element, wherein the air cylinder and the sealing element are sleeved outside the shaft part;
the sealing piece comprises at least two sealing ribs in interference fit with the shaft piece, and the sealing ribs are arranged along the axial direction of the shaft piece at intervals.
2. The seal structure of claim 1, further comprising a rib on one of the mounting slot and the seal and a groove matching the rib on the other of the mounting slot and the seal.
3. The seal structure of claim 1, further comprising an elastic ring disposed around the shaft, wherein one end of the elastic ring abuts against an end of the cylinder.
4. The seal structure of claim 3, further comprising a gasket disposed about the shaft member, the gasket abutting the other end of the resilient ring.
5. The seal structure of claim 4, wherein the resilient ring is rubber.
6. The seal structure of claim 1, wherein the seal includes three of the sealing ribs.
7. The seal structure of any one of claims 1 to 6, wherein the seal is resilient.
8. The seal structure of claim 7, wherein the seal is rubber.
9. An electric power tool comprising an impact pin and the seal structure of claim 1 or 2 or 3 or 6 or 7 or 8, wherein the shaft member is the impact pin.
10. A power tool comprising an impact pin and the seal structure of claim 4 or 5, wherein the shaft member is the impact pin;
the impact rod is provided with a limiting surface, the gasket is located between the limiting surface and the elastic ring, and the gasket is abutted to the limiting surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921924210.4U CN211009883U (en) | 2019-11-13 | 2019-11-13 | A seal structure and electric tool for axle spare |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921924210.4U CN211009883U (en) | 2019-11-13 | 2019-11-13 | A seal structure and electric tool for axle spare |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211009883U true CN211009883U (en) | 2020-07-14 |
Family
ID=71467696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921924210.4U Active CN211009883U (en) | 2019-11-13 | 2019-11-13 | A seal structure and electric tool for axle spare |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211009883U (en) |
-
2019
- 2019-11-13 CN CN201921924210.4U patent/CN211009883U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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. |