Secondary locking structure of high-speed scraping arm fixing seat

Abstract

The utility model discloses a high-speed wiper arm fixing seat secondary locking structure which comprises a wiper blade, a wiper blade fixing seat used for fixing the wiper blade and an outer cover installed on a wiper arm, and the windward side of the outer cover is an inclined face. A shaft is arranged on each of the two side surfaces of the doctor blade fixing seat; one end of the wiper arm is inserted into the wiper blade fixing seat, the cross section of the end, inserted into the wiper blade fixing seat, of the wiper arm is in a U shape, a pair of side walls of the U shape are respectively provided with a first opening groove, and the two first opening grooves are arranged on the shaft in a sleeved mode. A groove is formed in the U-shaped side wall of one end, inserted into the wiper blade fixing seat, of the outer cover or / and the wiper arm, and the elastic arm is embedded into the groove. According to the utility model, the swinging phenomenon can be reduced, and the wiper arm and the wiper blade can be prevented from falling off.

Description

Technical Field

[0001] The utility model relates to the technical field of windshield wipers, in particular to a secondary locking structure of a high-speed wiper arm fixing seat. 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 cooperates with the connector, the connector cooperates with the scraper blade fixing seat. The accumulated gap between the two cooperations usually leads to excessive clearance between the scraper blade and the scraper arm, resulting in swinging. In addition, there is still a risk of the scraper arm and the scraper blade coming out. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a secondary locking structure of a high-speed scraper arm fixing seat which can reduce the swinging phenomenon and prevent the scraper arm and the scraper blade from coming out in view of the above-mentioned deficiencies in the prior art.

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

[0006] A secondary locking structure for a high-speed scraper arm fixing seat, comprising a scraper blade, a scraper blade fixing seat for fixing the scraper blade, and an outer cover installed on the scraper arm, wherein the windward surface of the outer cover is an inclined surface; an axis is respectively arranged on both side surfaces of the scraper blade fixing seat; one end of the scraper arm is inserted into the scraper blade fixing seat, and the cross-section of the end of the scraper arm inserted into the scraper blade fixing seat is U-shaped, and a first opening groove is respectively arranged on a pair of side walls of the U-shape, and the two first opening grooves are sleeved on the axis, characterized in that an elastic arm is arranged on the scraper blade fixing seat, and a groove is arranged on one side wall of the U-shape at one end of the outer cover and / or the scraper arm inserted into the scraper blade fixing seat, and the elastic arm is embedded in the groove.

[0007] In a preferred embodiment of the utility model, a protrusion is provided on one side surface of the scraper fixing seat, and a second opening groove is provided on one side wall of the U-shape, and the protrusion is embedded in the second opening groove to limit the scraper arm from falling out along the length direction of the scraper.

[0008] In a preferred embodiment of the present invention, the protrusion is arc-shaped, and the second opening groove is arc-shaped to match the protrusion.

[0009] In a preferred embodiment of the utility model, at least one stopper is provided on the scraper fixing seat, and the stopper clamps a side wall of the U-shaped seat provided with the second opening groove on a side surface of the scraper fixing seat provided with the protrusion.

[0010] Due to the adoption of the above technical solution, the utility model adopts the cooperation between the shaft on the scraper blade fixing seat and the first open groove on the scraper arm, so that the scraper arm can rotate relative to the scraper blade fixing seat, and an elastic arm is arranged on the scraper blade fixing seat, and a groove is arranged on one side wall of the U-shape at one end of the outer cover or / and the scraper arm inserted into the scraper blade fixing seat, and the elastic arm is embedded in the groove to lock the movement of the outer cover in the length direction of the scraper blade. The elastic arm needs to be manually unlocked, and the scraper arm and the outer cover can be removed from the scraper blade fixing seat after exiting the groove on the outer cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the wiper structure of the utility model.

[0012] Figure 2 for Figure 1 An enlarged schematic diagram of point I.

[0013] Figure 3 It is a schematic diagram of the assembly of the scraper arm and the scraper blade fixing seat of the utility model.

[0014] Figure 4 It is a schematic diagram of the scraper arm of the utility model being lifted upward. DETAILED DESCRIPTION

[0015] The present invention is further described below in conjunction with the accompanying drawings and specific implementations.

[0016] See also Figures 1 to 4 The figure shows a high-speed scraper arm fixing seat secondary locking structure, comprising a scraper blade 10, a scraper blade fixing seat 20 for fixing the scraper blade 10, an outer cover 30 and a scraper arm 40, wherein the windward surface 31 of the outer cover 30 is an inclined surface; a shaft 22 is respectively arranged on the two side surfaces 21 of the scraper blade fixing seat 20, and a protrusion 23 is arranged on one side surface 21 of the scraper blade fixing seat 20. The protrusion 23 is an arc shape, and the opening groove 44 is an arc shape adapted to the protrusion 23, and the protrusion 23 is embedded in the opening groove 44 to limit the scraper arm 40 from coming out along the length direction of the scraper blade 10.

[0017] One end of the scraper arm 40 is inserted into the scraper arm fixing seat 20. The cross section of the end 41 of the scraper arm 40 inserted into the scraper arm fixing seat 20 is U-shaped. An opening groove 43 (the aforementioned first opening groove) is respectively provided on a pair of side walls 42 of the U-shape. An opening groove 44 (the aforementioned second opening groove) is provided on one side wall 42 of the U-shape. The opening groove 44 is an arc shape that matches the protrusion 23. The two first opening grooves 43 are sleeved on the shaft 22, so that the scraper arm 40 is hinged with the scraper blade fixing seat 20. In addition, a groove (not shown in the figure) is provided on one side wall 42 of the U-shape.

[0018] At least one stopper 24 , for example two stoppers 34 , are disposed on the scraper fixing seat 20 . The two stoppers 34 clamp a U-shaped side wall 42 having an opening groove 44 on a side surface 21 of the scraper fixing seat 20 having a protrusion 23 .

[0019] The outer cover 30 is attached to one end 41 of the scraper arm 40 inserted into the scraper arm fixing seat 20. An elastic arm 25 is provided on the scraper blade fixing seat 20. A groove 32 is provided on the windward surface 31 of the outer cover 30. The elastic arm 31 is embedded in the groove 32 or / and the groove on the U-shaped side wall 42, so as to lock the movement of the outer cover 30 in the length direction of the scraper blade 10. It is necessary to manually unlock the elastic arm 31 and lift the scraper arm 40 (see Figure 4 ), so that the elastic arm 31 exits the groove 32 on the outer cover 30 and / or the groove on the U-shaped side wall 42, and the scraper arm 40 and the outer cover 30 can be removed from the scraper blade fixing seat 20.

Claims

1. A secondary locking structure of a high-speed scraper arm fixing seat, comprising a scraper blade, a scraper blade fixing seat for fixing the scraper blade, and an outer cover mounted on the scraper arm, wherein the windward surface of the outer cover is an inclined surface; an axis is respectively arranged on both side surfaces of the scraper blade fixing seat; one end of the scraper arm is inserted into the scraper blade fixing seat, and the cross section of the end of the scraper arm inserted into the scraper blade fixing seat is U-shaped, and a first opening groove is respectively arranged on a pair of side walls of the U-shape, and the two first opening grooves are sleeved on the axis, characterized in that: An elastic arm is arranged on the scraper fixing seat, and a groove is arranged on a U-shaped side wall of one end of the outer cover and / or the scraper arm inserted into the scraper fixing seat, and the elastic arm is embedded in the groove.

2. The secondary locking structure of the high-speed scraper arm fixing seat according to claim 1 is characterized in that: A protrusion is arranged on one side surface of the scraper fixing seat, and a second opening groove is arranged on one side wall of the U-shape, and the protrusion is embedded in the second opening groove to limit the scraper arm from falling out along the length direction of the scraper.

3. The secondary locking structure of the high-speed scraper arm fixing seat according to claim 2 is characterized in that: The protrusion is arc-shaped, and the second opening groove is arc-shaped to match the protrusion.

4. The secondary locking structure of the high-speed scraper arm fixing seat according to claim 2 or 3, characterized in that: At least one stopper is arranged on the scraper fixing seat, and the stopper clamps a side wall of the U-shaped portion provided with the second opening groove on a side surface of the scraper fixing seat provided with the protrusion.

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