Aerodynamic windscreen wiper arm

Abstract

The utility model discloses an aerodynamic wiper arm which comprises a wiper blade, a wiper blade fixing seat and a wiper arm, the wiper blade fixing seat is fixedly connected with the wiper blade, a rotating shaft is riveted or assembled at one end, inserted into the wiper blade fixing seat, of the wiper arm, and the axis of the rotating shaft is perpendicular to the length direction of the wiper blade; an opening shaft hole is formed in the wiper blade fixing seat, the end, inserted into the wiper blade fixing seat, of the wiper arm is wrapped on the wiper blade fixing seat, and the rotating shaft is clamped into the opening shaft hole. An outer cover is omitted, the end, connected with the wiper blade fixing seat, of the wiper arm is directly wrapped on the wiper blade fixing seat, the windward side is arranged at the end, connected with the wiper blade fixing seat, of the wiper arm, parts are saved, and cost is reduced. The rotating shaft is directly arranged on the wiper arm and clamped into the open shaft hole in the wiper blade fixing piece, meanwhile, the open notch is formed in the wiper blade fixing piece, the protrusion is arranged on the wiper arm, the protrusion is embedded into the open notch, the wiper arm is limited to slide out of the wiper blade fixing base, and the gap between the wiper arm and the wiper blade fixing base is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of windshield wipers, in particular to an aerodynamic windshield wiper arm. Background Art

[0002] In order to improve the high-speed performance of the scraper blade, some manufacturers on the market have changed the scraper blade connection into an inclined surface. That is, the windward surface is changed into an inclined surface, which can increase the downward pressure of the high-speed airflow on the scraper blade.

[0003] Most manufacturers on the market insert the scraper arm into the scraper blade connector. Due to the limited space on the inclined surface, the scraper rod insertion end is usually cut very narrow, resulting in generally low scraper arm stiffness. At the same time, since the scraper arm is matched with the connector, and the connector is matched with the scraper blade fixing seat, the accumulated gap between the two matches usually leads to a large gap between the scraper blade and the scraper arm, resulting in swinging. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an aerodynamic wiper arm which eliminates the outer cover and reduces the clearance between the wiper blade fixing seat and the wiper arm, thereby improving the stability of the wiper blade operation.

[0005] The technical problem to be solved by the utility model can be achieved through the following technical solutions:

[0006] An aerodynamic wiper arm comprises a wiper blade, a wiper blade fixing seat fixedly connected to the wiper blade, and a wiper arm, characterized in that a rotating shaft is riveted or assembled on one end of the wiper arm inserted into the wiper blade fixing seat, and the axis of the rotating shaft is perpendicular to the length direction of the wiper blade; an open shaft hole is provided on the wiper blade fixing seat, and the end of the wiper arm inserted into the wiper blade fixing seat is wrapped around the wiper blade fixing seat, and the rotating shaft is stuck in the open shaft hole.

[0007] In a preferred embodiment of the present utility model, one end of the scraper arm inserted into the scraper blade fixing seat is a metal cover having a windward surface and a leeward surface, and the rotating shaft is arranged in the metal cover.

[0008] In a preferred embodiment of the utility model, an open slot is provided on the scraper blade fixing member, and a protrusion is provided on the leeward side, wherein the protrusion is embedded in the open slot to limit the scraper arm from sliding out of the scraper blade fixing seat along the length direction of the scraper blade.

[0009] In a preferred embodiment of the utility model, a slope is provided on the scraper fixing seat, one end of the slope is connected to one side of the open shaft hole, so that the rotating shaft can slide into the open shaft hole along the slope.

[0010] In a preferred embodiment of the utility model, a baffle is arranged on the scraper blade fixing seat, and the baffle blocks the leeward side of the scraper arm to limit the movement of the scraper arm on the scraper blade fixing seat perpendicular to the length direction of the scraper blade.

[0011] Due to the adoption of the above technical solution, the utility model cancels the outer cover, directly wraps the end of the scraper arm connected to the scraper blade fixing seat on the scraper blade fixing seat, and sets a windward surface at the end of the scraper arm connected to the scraper blade fixing seat, thereby saving parts and reducing costs. The utility model directly sets a rotating shaft on the scraper arm, which is inserted into the open shaft hole on the scraper blade fixing member, and at the same time sets an open notch on the scraper blade fixing member, sets a protrusion on the scraper arm, and the protrusion is embedded in the open notch, so as to limit the scraper arm from sliding out of the scraper blade fixing seat and reduce the gap between the two. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic structural diagram of the high-speed wiper of the utility model.

[0013] Figure 2 It is a structural schematic diagram of the scraper arm of the utility model.

[0014] Figure 3 It is a schematic diagram of the structure of the scraper fixing seat of the utility model.

[0015] Figure 4 It is a schematic diagram of the scraper arm of the utility model being installed on the scraper blade fixing seat. DETAILED DESCRIPTION

[0016] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0017] See also Figures 1 to 4 An aerodynamic wiper arm shown in the figure includes a wiper blade 10, a wiper blade fixing seat 20 fixedly connected to the wiper blade 10, and a wiper arm 30.

[0018] One end of the scraper arm 30 inserted into the scraper blade fixing seat 20 is a metal outer cover 31 having a windward surface 32 and a leeward surface 33. A rotating shaft 40 is arranged inside the metal outer cover 31. The two ends of the rotating shaft 40 are riveted or assembled on the windward surface 32 and the leeward surface 33 respectively. The axis of the rotating shaft 40 is perpendicular to the length direction of the scraper blade 10; in addition, a protrusion 34 is arranged on the leeward surface 33.

[0019] An open shaft hole 21 , an open notch 22 and a slope 23 are provided on the scraper fixing seat 20 . One end of the slope 23 is connected to one side of the open shaft hole 22 , so that the rotating shaft 40 can slide into the open shaft hole 21 along the slope 23 .

[0020] See also Figure 4During assembly, the scraper arm 30 is inserted downwardly and obliquely onto the scraper blade fixing seat 20, and the rotating shaft 30 slides into the open shaft hole 21 along the inclined surface 23. Then the scraper arm 40 is pressed downward, so that the protrusion 34 on the scraper arm 30 is pressed into the open notch 22 on the scraper blade fixing seat 20, and the scraper arm 40 is restricted from sliding out of the scraper blade fixing seat 20 along the length direction of the scraper blade 10. After assembly is completed, the end 31 of the scraper arm 30 connected to the scraper blade fixing seat 20 is wrapped around the scraper blade fixing seat 20.

[0021] A baffle 24 is provided on the scraper blade fixing seat 20 , and the baffle 24 blocks the leeward surface 33 of the scraper arm 30 , thereby limiting the movement of the scraper arm 30 on the scraper blade fixing seat 20 perpendicular to the length direction of the scraper blade 10 .

Claims

1. An aerodynamic wiper arm, comprising a wiper blade, a wiper blade fixing seat fixedly connected to the wiper blade, and a wiper arm, characterized in that: A rotating shaft is riveted or assembled on one end of the scraper arm inserted into the scraper blade fixing seat, and the axis of the rotating shaft is perpendicular to the length direction of the scraper blade; an open shaft hole is provided on the scraper blade fixing seat, and the end of the scraper arm inserted into the scraper blade fixing seat is wrapped around the scraper blade fixing seat, and the rotating shaft is stuck in the open shaft hole.

2. The aerodynamic wiper arm according to claim 1, characterized in that: One end of the scraper arm inserted into the scraper blade fixing seat is a metal outer cover having a windward surface and a leeward surface, and the rotating shaft is arranged in the metal outer cover.

3. The aerodynamic wiper arm according to claim 2, characterized in that: An open notch is arranged on the scraper blade fixing part, and a protrusion is arranged on the leeward side. The protrusion is embedded in the open notch to limit the scraper arm from sliding out of the scraper blade fixing seat along the length direction of the scraper blade.

4. The aerodynamic wiper arm according to claim 3, characterized in that: An inclined surface is arranged on the scraper fixing seat, and one end of the inclined surface is connected to one side of the open shaft hole, so that the rotating shaft can slide into the open shaft hole along the inclined surface.

5. The aerodynamic wiper arm according to claim 1, characterized in that: A baffle is arranged on the scraper blade fixing seat, and the baffle blocks the leeward side of the scraper arm to limit the movement of the scraper arm on the scraper blade fixing seat perpendicular to the length direction of the scraper blade.

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