Improved connecting structure of high-speed scraping arm

Abstract

The utility model discloses an improved connecting structure of a high-speed wiper arm, which comprises a fixed seat, a wiper blade, a connecting piece and a wiper arm, the windward side of the connecting piece is an inclined plane, and one end of the wiper arm is inserted into the connecting piece and is connected with the fixed seat; a pair of side walls of the fixed seat is provided with a shaft, two side walls of one end, inserted into the connecting piece, of the scraping arm are respectively provided with a first open slot, and the first open slots are hinged on the shaft, and is characterized in that the side wall of one side of the fixed seat is provided with a second open slot; the top of the second open slot is open; a protruding pin is arranged on one side wall of the end, inserted into the connecting piece, of the wiper arm, and when the wiper arm and the fixing base are assembled, the protruding pin is pressed into the second open groove from the opening of the second open groove. According to the utility model, the whole rigidity of the scraping arm can be improved while a slope connecting piece is realized, and the whole stability of a product is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of windshield wipers, in particular to an improved connection structure of a high-speed 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 improved connection structure of a high-speed wiper arm in view of the above-mentioned deficiencies existing in the existing high-speed wiper, so as to solve the above-mentioned deficiencies existing in the existing technology.

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

[0006] A high-speed scraper arm improved connection structure, comprising a fixed seat, a scraper blade, a connecting piece and a scraper arm, the windward surface of the connecting piece is an inclined surface, one end of the scraper arm is inserted into the connecting piece and connected to the fixed seat; an axis is provided on a pair of side walls of the fixed seat, and a first opening groove is respectively provided on the two side walls of the end of the scraper arm inserted into the connecting piece, and the first opening groove is hinged on the axis, characterized in that a second opening groove is provided on the side wall on one side of the fixed seat, and the top of the second opening groove is open; a convex pin is provided on one side wall of the end of the scraper arm inserted into the connecting piece, and when the scraper arm is assembled with the fixed seat, the convex 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 can move up and down in the second opening groove.

[0008] In a preferred embodiment of the present utility model, the end of the scraper arm inserted into the connecting member is U-shaped.

[0009] In a preferred embodiment of the present invention, the protruding pin is matched with a groove wall of the second opening groove with a small gap.

[0010] Due to the adoption of the above technical solution, the utility model provides a convex pin on one side wall of the end of the scraper arm inserted into the connecting piece. During assembly, the convex pin is pressed into the second opening groove on the fixing seat, so that the matching clearance between the scraper arm and the fixing seat is reduced, thereby improving the stability of the scraper blade operation. At the same time, the overall rigidity of the scraper arm can be improved while realizing the inclined connecting piece, thereby improving the overall stability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the high-speed scraper arm of the utility model.

[0012] Figure 2 This is one of the schematic diagrams of the scraper arm structure of the utility model.

[0013] Figure 3 This is the second schematic diagram of the scraper arm structure of the utility model.

[0014] Figure 4 It is a schematic diagram of the connection between the scraper blade and the fixing seat of the utility model.

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

[0016] Figure 6 It is a schematic diagram of the high-speed scraper arm connection structure of the utility model after being assembled. DETAILED DESCRIPTION

[0017] The present invention is further described below in conjunction with the accompanying drawings and specific implementations.

[0018] See also Figures 1 to 6 , an improved connection structure of a high-speed scraper arm shown in the figure includes a fixing seat 10, a scraper blade 20, a connecting piece 30 and a scraper arm 40.

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

[0020] A shaft 12 is disposed on a pair of side walls 11 of the fixing seat 10 , and an opening groove 13 (the aforementioned second opening groove) is disposed on the side wall 11 on one side of the fixing seat 10 , and the top of the opening groove 13 is open.

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

[0022] See especially Figure 5 After the scraper arm 40 and the fixing seat 10 are turned to the limit angle, the scraper arm 40 is inserted along the top edge of the fixing seat 40 to complete the hinge connection between the shaft hole of the opening groove 42 on the scraper arm 40 and the shaft 12 on the fixing seat 10. The scraper arm 40 is rotated downward, so that the protruding pin 43 on the scraper arm 40 is inserted into the opening groove 13 on the fixing seat 10 from the opening of the opening groove 13. The opening groove 13 on the fixing seat 10 plays a role in preventing the scraper arm 40 from coming out in the length direction of the scraper blade 20. At the same time, since the opening groove 42 is in an arc shape and is coaxial with the shaft 12 on the fixing seat 20, it can also guide the relative rotation of the scraper arm 40 and the fixing seat 10.

[0023] The protruding pin 43 can move up and down in the opening slot 13. The protruding pin 43 cooperates with the slot wall of the opening slot 13 with a small clearance, so that the matching clearance between the scraper arm 40 and the fixing seat 10 is reduced, thereby improving the stability of the scraper assembly operation.

Claims

1. An improved connection structure of a high-speed scraper arm, comprising a fixed seat, 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 seat; a shaft is arranged on a pair of side walls of the fixed seat, and a first opening groove is respectively arranged on the two side walls of the end of the scraper arm inserted into the connecting member, and the first opening groove is hinged on the shaft, characterized in that: A second opening groove is provided on the side wall on one side of the fixing seat, and the top of the second opening groove is open; a convex pin is provided on the side wall of one end of the scraper arm inserted into the connecting piece, and when the scraper arm is assembled with the fixing seat, the convex pin is pressed into the second opening groove from the opening of the second opening groove.

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

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

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

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