Improved connecting structure for high-speed wiper arm

Abstract

Disclosed in the present invention is an improved connecting structure for a high-speed wiper arm, comprising a fixing base, a wiper blade, a connector, and a wiper arm. The windward surface of the connector is an inclined surface, and one end of the wiper arm is inserted into the connector and connected to the fixing base. A shaft is provided on a pair of side walls of the fixing base, two side walls of the end of the wiper arm inserted into the connector are respectively provided with a first opening slot, and the first opening slots are hinged to the shaft. The side wall of one side of the fixing base is provided with a second opening slot, and the top of the second opening slot is open. One side wall of the end of the wiper arm inserted into the connector is provided with a dowel pin, and when the wiper arm is assembled with the fixing base, the dowel pin is pressed into the second opening slot from the opening of the second opening slot. The present invention can improve the overall rigidity of the wiper arm while achieving an inclined-surface connector, thereby improving the overall stability of products.

Description

An improved connection structure for a high-speed scraper arm Technical Field

[0001] This invention relates to the field of wiper technology, and in particular to an improved connection structure for a high-speed wiper arm. Background Technology

[0002] To improve the high-speed performance of the blades, some manufacturers have modified the blade connectors to have an angled design. This means the windward side is angled, which increases the downward pressure of the high-speed airflow on the blades.

[0003] Most manufacturers on the market insert the scraper arm into the scraper blade connector. Due to the limited space on the inclined plane, the insertion end of the scraper arm usually needs to be cut very narrow, resulting in generally low scraper arm rigidity. Furthermore, since the scraper arm mates with the connector, and the connector then mates with the scraper blade holder, the accumulated clearance between these two mating parts often leads to excessive clearance between the scraper blade and the scraper arm, causing wobbling. Technical solutions

[0004] The technical problem to be solved by the present invention is to provide an improved connection structure for a high-speed wiper arm to address the above-mentioned shortcomings of existing high-speed wipers, thereby solving the shortcomings of the prior art.

[0005] The technical problem to be solved by this invention can be achieved through the following technical solution:

[0006] An improved connection structure for a high-speed scraper arm includes a fixed base, a scraper blade, a connector, and a scraper arm. The windward surface of the connector is inclined. One end of the scraper arm is inserted into the connector and connected to the fixed base. A shaft is provided on a pair of side walls of the fixed base. A first opening groove is provided on each of the two side walls of the end of the scraper arm inserted into the connector. The first opening groove is hinged to the shaft. The characteristic feature is that a second opening groove is provided on one side wall of the fixed base, and the top of the second opening groove is open. A protruding pin is provided on one side wall of the end of the scraper arm inserted into the connector. When the scraper arm is assembled with the fixed base, the protruding pin is pressed into the second opening groove from the opening of the second opening groove.

[0007] In a preferred embodiment of the present invention, the protruding pin is movable up and down within the second opening groove.

[0008] In a preferred embodiment of the present invention, one end of the scraper arm inserted into the connector is U-shaped.

[0009] In a preferred embodiment of the present invention, the protruding pin is fitted with a small clearance between the pin and the wall of the second opening groove.

[0010] By employing the above technical solution, this invention provides a protruding pin on one side wall of the end of the scraper arm inserted into the connecting component. During assembly, the protruding pin is pressed into the second opening groove on the fixed seat, reducing the clearance between the scraper arm and the fixed seat and improving the stability of the scraper blade operation. Simultaneously, it can improve the overall rigidity of the scraper arm while realizing the inclined connecting component, thereby enhancing the overall stability of the product. Attached Figure Description

[0011] Figure 1 is a schematic diagram of the high-speed scraper arm of the present invention.

[0012] Figure 2 is one of the schematic diagrams of the scraper arm structure of the present invention.

[0013] Figure 3 is a second schematic diagram of the scraper arm structure of the present invention.

[0014] Figure 4 is a schematic diagram of the connection between the scraper and the fixed base of the present invention.

[0015] Figure 5 is a schematic diagram of the initial assembly state of the high-speed scraper arm connection structure of the present invention.

[0016] Figure 6 is a schematic diagram of the assembled state of the high-speed scraper arm connection structure of the present invention. Embodiments of the present invention

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0018] Referring to Figures 1 to 6, a high-speed scraper arm improved connection structure is shown in the figures, including a fixed base 10, a scraper blade 20, a connector 30, and a scraper arm 40.

[0019] The scraper blade 20 is fixed on the mounting base 10, and the connector 30 is installed on the mounting base 10 to form a scraper blade assembly. The windward surface 31 of the connector 30 is an inclined surface.

[0020] A shaft 12 is provided on a pair of side walls 11 of the fixed base 10, and an opening groove 13 (the aforementioned second opening groove) is provided on one side wall 11 of the fixed base 10, with the top of the opening groove 13 being open.

[0021] One end of the scraper arm 40 is inserted into the connector 30, and the end of the scraper arm 40 inserted into the connector 30 is U-shaped. An opening groove 42 (the aforementioned first opening groove) is provided on each of the two side walls 41 of the end of the scraper arm 40 inserted into the connector 30, and a protruding pin 43 is provided on one side wall 41 of the end of the scraper arm 40 inserted into the connector 30.

[0022] Referring specifically to Figure 5, after the scraper arm 40 and the fixed base 10 are rotated to their extreme angles, the scraper arm 40 is inserted along the top edge of the fixed base 40, completing the hinge connection between the shaft hole of the slot 42 on the scraper arm 40 and the shaft 12 on the fixed base 10. The scraper arm 40 rotates downwards, causing the protruding pin 43 on the scraper arm 40 to engage with the slot 13 on the fixed base 10 through the opening of the slot 13. The slot 13 on the fixed base 10 serves to prevent the scraper arm 40 from coming out in the length direction of the scraper blade 20. At the same time, since the slot 42 is arc-shaped and coaxial with the shaft 12 on the fixed base 20, it can also guide the relative rotation between the scraper arm 40 and the fixed base 10.

[0023] The protruding pin 43 can move up and down within the opening groove 13. The small clearance between the protruding pin 43 and the groove wall of the opening groove 13 reduces the clearance between the scraper arm 40 and the fixed seat 10, thereby improving the stability of the scraper assembly operation.

Claims

1. An improved connection structure for a high-speed scraper arm, comprising a fixed base, a scraper blade, a connecting member, and a scraper arm, wherein the windward surface of the connecting member is an inclined surface, one end of the scraper arm is inserted into the connecting member and connected to the fixed base; a shaft is provided on a pair of side walls of the fixed base, and a first opening groove is provided on each of the two side walls of the end of the scraper arm inserted into the connecting member, the first opening groove being hinged to the shaft, characterized in that, A second opening groove is provided on one side wall of the fixed base, and the top of the second opening groove is open; a protruding pin is provided on one side wall of the end of the scraper arm that is inserted into the connector, and when the scraper arm is assembled with the fixed base, the protruding pin is pressed into the second opening groove from the opening of the second opening groove.

2. The improved connection structure for a high-speed scraper arm according to claim 1, characterized in that, The protruding pin can move up and down within the second opening groove.

3. The improved connection structure for a high-speed scraper arm according to claim 1, characterized in that, The end of the scraper arm inserted into the connector is U-shaped.

4. The improved connection structure for a high-speed scraper arm according to claim 1, characterized in that, The protruding pin engages with the groove wall of the second opening groove with a small clearance.

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