CN217864035U - Extension arm for windscreen wiper - Google Patents
Extension arm for windscreen wiper Download PDFInfo
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- CN217864035U CN217864035U CN202221889749.2U CN202221889749U CN217864035U CN 217864035 U CN217864035 U CN 217864035U CN 202221889749 U CN202221889749 U CN 202221889749U CN 217864035 U CN217864035 U CN 217864035U
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- wear
- mounting groove
- extension arm
- groove
- hinged plate
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Abstract
The utility model provides an extension arm for windscreen wiper, extension rod and articulated seat including integrated into one piece, articulated seat including symmetric distribution in two articulated slab, every of extension rod both sides all run through on the articulated slab and be provided with the hinge hole, and two the hinge hole is coaxial setting, two the mounting groove has all been seted up to the relative department of articulated slab, each it is equipped with wear pad to inlay in the mounting groove, just the tip protrusion of wear pad in the mounting groove. Compared with a hinged plate, the wear-resistant plate has higher wear-resistant performance and is not easy to wear. And the end part of the wear-resistant sheet protrudes out of the mounting groove and is in direct contact with the arm seat to separate the hinged plate from the arm seat, so that the hinged plate is not easy to wear and influence the normal use of the windscreen wiper.
Description
Technical Field
The utility model relates to a wiper accessory especially relates to an extension arm for wiper.
Background
The windscreen wiper is an important accessory arranged on the windscreen, is mainly used for sweeping rain, snow and dust which obstruct the sight on the windscreen, and has a very important function on driving safety.
At present, chinese patent with publication number CN210101587U discloses a novel wiper, including arm seat and rotate connect in the windscreen wiper arm of arm seat, the arm seat includes cooperation portion, the windscreen wiper arm includes limit structure and sunk structure, limit structure be to the protruding that the arm seat direction extends, limit structure set up in the windscreen wiper arm is close to the position of cooperation portion, limit structure with cooperation portion is used for the restriction the rotation angle of windscreen wiper arm.
However, in the use process of the wiper blade, the arm seat and the wiper arm frequently rotate, so that the wiper arm is easily abraded, and the normal use of the wiper blade is influenced.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides an extension arm for a wiper, which has the advantage of being less prone to wear and is less prone to affect the normal use of the wiper.
In order to solve the technical problem, the technical scheme of the utility model is that: the utility model provides an extension arm for windscreen wiper, includes integrated into one piece's extension rod and articulated seat, articulated seat includes symmetric distribution in two articulated slab, every of extension rod both sides all run through on the articulated slab and be provided with the hinge hole, and two the hinge hole is coaxial setting, two the mounting groove has all been seted up in the relative department of articulated slab, each inlay in the mounting groove and be equipped with the wear pad, just the tip protrusion of wear pad in the mounting groove.
Through above-mentioned technical scheme, wear-resisting piece has higher wear resistance than the articulated slab, and difficult wearing and tearing. And moreover, the end part of the wear-resistant sheet protrudes out of the mounting groove and is in direct contact with the arm seat to separate the hinged plate from the arm seat, so that the hinged plate is not easy to wear and influence the normal use of the windscreen wiper.
Preferably, a positioning groove is formed in the inner groove wall of the mounting groove and is axially arranged along the mounting groove, and a positioning block is arranged on the side wall of the wear-resistant piece and is embedded in the positioning groove.
Through the technical scheme, the positioning groove and the positioning block are matched to limit the relative rotation between the hinged plate and the wear-resisting sheet, so that the hinged plate is not easy to wear.
Preferably, an oil storage tank is arranged at the end part of the wear-resistant piece protruding out of the mounting groove, and lubricating grease is filled in the oil storage tank.
Through above-mentioned technical scheme, lubricating grease can lubricate the tip of wear pad for the wear pad is difficult for wearing and tearing.
Preferably, the surface of the hinged plate is provided with a zirconia wear-resistant coating.
Through above-mentioned technical scheme, set up zirconia abrasion-resistant coating on the surface of articulated slab for promote the abrasive resistance of articulated slab, make the difficult wearing and tearing of articulated sheet.
Preferably, a limiting groove is formed in the joint of the extension rod and the hinged plate, and the bottom of the limiting groove is arc-shaped.
Through above-mentioned technical scheme, the spacing groove can cooperate with the arm seat in the use of wiper for the turned angle to the extension arm limits. The bottom of the limiting groove is arc-shaped, so that the phenomenon of stress concentration can be effectively relieved, and the inner groove wall of the limiting groove is not easy to damage.
Preferably, a stop block is arranged at the edge of the hinged plate, and the stop block is positioned on one side, away from the limiting groove, of the hinged plate.
Through above-mentioned technical scheme, the dog can cooperate with the arm seat in the use of wiper for rock the extension arm and restrict.
Preferably, the stopper comprises a connecting section fixedly connected to the hinge plate and a stopping section fixedly connected to the connecting section, and the connecting section is arc-shaped.
Through above-mentioned technical scheme, the linkage segment is arc, can effectively alleviate stress concentration's phenomenon for the dog is difficult damaged.
Preferably, the stopper further comprises a support section disposed between the connection section and the blocking section.
Through above-mentioned technical scheme, support the section and can support the linkage segment and block the section, and then promote the linkage segment and block the joint strength between the section.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment;
FIG. 2 is a schematic cross-sectional view of an embodiment.
Reference numerals are as follows: 1. an extension rod; 2. a hinged seat; 21. a hinge plate; 3. a hinge hole; 4. mounting grooves; 5. a wear resistant sheet; 6. positioning a groove; 7. positioning blocks; 8. an oil storage tank; 9. a zirconia wear-resistant coating; 10. a limiting groove; 11. a stopper; 111. a connecting section; 112. a blocking section; 113. a support section.
Detailed Description
The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and grasped.
An extension arm for a wiper, as shown in fig. 1 and 2, comprises an extension rod 1 and a hinge base 2 which are integrally formed.
The hinge base 2 comprises two hinge plates 21 symmetrically distributed on two sides of the extension rod 1, hinge holes 3 are formed in each hinge plate 21 in a penetrating mode, and the two hinge holes 3 are coaxially arranged. The surface of each hinged plate 21 is provided with a zirconia wear-resistant coating 9 for improving the wear resistance of the hinged plate 21.
The joint of the extension rod 1 and the hinged plate 21 is provided with a limiting groove 10, and the bottom of the limiting groove 10 is arc-shaped.
The edge of the hinged plate 21 is provided with a stop 11, and the stop 11 is positioned on the side of the hinged plate 21 away from the limiting groove 10. The stopper 11 includes a connecting section 111 fixedly connected to the hinge plate 21, a blocking section 112 fixedly connected to the connecting section 111, and a supporting section 113 disposed between the connecting section 111 and the blocking section 112, wherein the connecting section 111 has a circular arc shape.
Of course, the above is only a typical example of the present invention, and besides, the present invention can also have other various specific embodiments, and all technical solutions adopting equivalent replacement or equivalent transformation are all within the scope of the present invention as claimed.
Claims (8)
1. The utility model provides an extension arm for windscreen wiper, characterized by: extension rod (1) and articulated seat (2) including integrated into one piece, articulated seat (2) including symmetric distribution in two articulated slab (21) of extension rod (1) both sides, every articulated slab (21) is gone up and all is run through and is provided with hinge hole (3), and two hinge hole (3) are coaxial setting, two mounting groove (4), each have all been seted up to the relative department of articulated slab (21) inlay in mounting groove (4) and be equipped with wear pad (5), just the tip protrusion of wear pad (5) in mounting groove (4).
2. The extension arm for a wiper blade of claim 1, wherein: the wear-resistant mounting groove is characterized in that a positioning groove (6) is formed in the inner groove wall of the mounting groove (4), the positioning groove (6) is axially arranged along the mounting groove (4), a positioning block (7) is arranged on the side wall of the wear-resistant piece (5), and the positioning block (7) is embedded in the positioning groove (6).
3. The extension arm for a wiper blade of claim 1, wherein: wear-resisting piece (5) protrusion in oil storage tank (8) have been seted up on the tip of mounting groove (4), it has lubricating grease to fill in oil storage tank (8).
4. The extension arm for a wiper blade of claim 1, wherein: the surface of the hinged plate (21) is provided with a zirconia wear-resistant coating (9).
5. The extension arm for a wiper according to claim 1, wherein: the connecting part of the extension rod (1) and the hinged plate (21) is provided with a limiting groove (10), and the bottom of the limiting groove (10) is arc-shaped.
6. The extension arm for a wiper according to claim 5, wherein: the edge of the hinged plate (21) is provided with a stop block (11), and the stop block (11) is positioned on one side, away from the limiting groove (10), of the hinged plate (21).
7. The extension arm for a wiper blade of claim 6, wherein: the stop block (11) comprises a connecting section (111) fixedly connected with the hinge plate (21) and a blocking section (112) fixedly connected with the connecting section (111), and the connecting section (111) is arc-shaped.
8. The extension arm for a wiper blade of claim 7, wherein: the block (11) further comprises a support section (113) arranged between the connection section (111) and the blocking section (112).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221889749.2U CN217864035U (en) | 2022-07-20 | 2022-07-20 | Extension arm for windscreen wiper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221889749.2U CN217864035U (en) | 2022-07-20 | 2022-07-20 | Extension arm for windscreen wiper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217864035U true CN217864035U (en) | 2022-11-22 |
Family
ID=84053962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221889749.2U Active CN217864035U (en) | 2022-07-20 | 2022-07-20 | Extension arm for windscreen wiper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217864035U (en) |
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2022
- 2022-07-20 CN CN202221889749.2U patent/CN217864035U/en active Active
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