Secondary locking structure of high-speed scraping arm connecting piece

Abstract

The utility model discloses a secondary locking structure of a high-speed wiper arm connecting piece, which comprises a fixed seat and a wiper blade connecting piece, an elastic buckle is arranged on a connecting part where the fixed seat is connected with the wiper blade connecting piece, and the elastic buckle is positioned in front of a rotating shaft in a first direction; a first U-shaped groove with an opening facing the direction of the wiper blade is formed in the position, corresponding to the elastic buckle, of the leeside of the wiper blade connecting piece; before the side, away from the first U-shaped groove, of the doctor blade connecting piece is lifted by an angle in the direction away from the doctor blade, the elastic buckle is embedded into the first U-shaped groove, and the doctor blade connecting piece is limited to retreat from the fixing base in the second direction; after the scraper connecting piece is lifted by an angle, the groove bottom of the first U-shaped groove presses the elastic buckle in the direction of the scraper, so that the elastic buckle deforms and retreats from the first U-shaped groove, and then the scraper connecting piece retreats from the fixing base in the second direction. According to the utility model, the risk that the existing scraper connecting piece and the fixed seat are easy to separate backwards is effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of windshield wipers, in particular to a secondary locking structure for a high-speed wiper arm connecting piece. Background Art

[0002] In order to improve the high-speed performance of windshield wipers, some manufacturers on the market have changed the windward surface of the wiper blade connecting piece into an inclined surface form to increase the downward pressure of the high-speed airflow on the windshield wiper.

[0003] At present, the wiper blade connecting piece is installed on the fixed seat by a hinged manner, that is, a rotating shaft is provided on one side wall of the connecting portion where the fixed seat is connected to the wiper blade connecting piece, and an opening groove is provided on one side wall of the wiper blade connecting piece. The opening groove is snapped onto the rotating shaft, so that the wiper blade connecting piece is hinged to the fixed seat. Since the part where the wiper blade connecting piece is hinged to the rotating shaft is in the form of an opening groove, there is a risk that the wiper blade connecting piece is easily disengaged backward from the fixed seat during use. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a secondary locking structure for a high-speed wiper arm connecting piece due to the risk that the existing wiper blade connecting piece is easily disengaged backward from the fixed seat.

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

[0006] A secondary locking structure for a high-speed wiper arm connecting member, comprising a fixed seat and a wiper blade connecting member. The fixed seat is used to fix the wiper blade. On one side surface of the connecting portion where the fixed seat is connected to the wiper blade connecting member, a rotating shaft is provided. The wiper blade connecting member has a U-shaped structure, with a windward surface and a leeward surface. On the leeward surface, a U-shaped opening groove is formed. During installation, the wiper blade connecting member is inserted into the fixed seat from the first direction, and the U-shaped opening groove is stuck on the rotating shaft, so that the wiper blade connecting member is hinged to the fixed seat. It is characterized in that, on one side surface of the connecting portion where the fixed seat is connected to the wiper blade connecting member, an elastic buckle is provided. The elastic buckle is located in front of the rotating shaft in the first direction. At a position on the leeward surface of the wiper blade connecting member corresponding to the elastic buckle, a first U-shaped groove with an opening facing the wiper blade direction is provided. Before the side of the wiper blade connecting member away from the first U-shaped groove is lifted by an angle in a direction away from the wiper blade, the elastic buckle is embedded in the first U-shaped groove, restricting the wiper blade connecting member from withdrawing from the fixed seat in the second direction. After the side of the wiper blade connecting member away from the first U-shaped groove is lifted by an angle in a direction away from the wiper blade, the bottom of the first U-shaped groove presses the elastic buckle in the direction of the wiper blade, causing the elastic buckle to deform and withdraw from the first U-shaped groove, and further enabling the wiper blade connecting member to withdraw from the fixed seat in the second direction. The first direction is opposite to the second direction.

[0007] In a preferred embodiment of the present utility model, a hard buckle is further provided on one side surface of the connecting portion where the fixed seat is connected to the wiper blade connecting member. The hard buckle and the elastic buckle are located on both sides of the rotating shaft in the first direction. At a position on the leeward surface of the wiper blade connecting member corresponding to the hard buckle, a second U-shaped groove with an opening facing the wiper blade direction is provided. Before the side of the wiper blade connecting member away from the first U-shaped groove is lifted by an angle in a direction away from the wiper blade, the hard buckle is embedded in the second U-shaped groove. After the side of the wiper blade connecting member away from the first U-shaped groove is lifted by an angle in a direction away from the wiper blade, the hard buckle disengages from the second U-shaped groove.

[0008] In a preferred embodiment of the present utility model, the hard buckle is inclined in a direction parallel to the first direction, and the second U-shaped groove is inclined in a direction parallel to the first direction and adapted to the inclination of the hard buckle.

[0009] Due to the adoption of the above technical solution, since an elastic buckle is provided on the fixed seat and a first U-shaped groove is provided on the wiper blade connecting member, before the wiper blade connecting member is lifted by an angle, the elastic buckle is embedded in the first U-shaped groove to restrict the wiper blade connecting member from withdrawing from the fixed seat; after the wiper blade connecting member is lifted by an angle, the bottom of the first U-shaped groove presses down on the elastic buckle, causing the elastic buckle to deform and withdraw from the first U-shaped groove, enabling the wiper blade connecting member to withdraw from the fixed seat, without affecting the disassembly of the wiper blade connecting member. The utility model effectively prevents the risk that the existing wiper blade connecting member and the fixed seat are prone to disengaging backward. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 FIG. is a schematic view of a wiper structure having a secondary locking structure of a high-speed wiper arm connecting member of the utility model.

[0011] Figure 2 FIG. is a schematic view of the secondary locking structure of the high-speed wiper arm connecting member of the utility model before the wiper blade connecting member is lifted by an angle in a direction away from the first U-shaped groove and away from the wiper blade.

[0012] Figure 3 FIG. is a schematic view of the secondary locking structure of the high-speed wiper arm connecting member of the utility model after the wiper blade connecting member is lifted by an angle in a direction away from the first U-shaped groove and away from the wiper blade. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0013] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0014] Refer to Figures 1 to 3 , a secondary locking structure of a high-speed wiper arm connecting member shown in the figure includes a fixed seat 100, a wiper blade connecting member 200 and a wiper blade 300, and the fixed seat 100 is used to fix the wiper blade 300.

[0015] A rotating shaft 112 is provided on a side surface 111 of a connecting portion 110 where the fixed seat 100 is connected to the wiper blade connecting member 200.

[0016] The wiper blade connecting member 200 has a U-shaped structure, with a windward surface 210 and a leeward surface 220. A U-shaped opening groove 221 is formed on the leeward surface 220. During installation, the wiper blade connecting member 220 is inserted into the fixed seat 100 from a first direction 410, and the U-shaped opening groove 221 is stuck on the rotating shaft 112, enabling the wiper blade connecting member 220 to be hinged to the fixed seat 100.

[0017] The characteristics of the present utility model are as follows: On one side surface 111 of the connection part 110 where the fixed seat 100 is connected to the wiper blade connecting piece 200, an elastic buckle 120 is provided. The elastic buckle 120 is located in front of the rotating shaft 112 in the first direction 410. At a position on the leeward surface 220 of the wiper blade connecting piece 200 corresponding to the elastic buckle 120, a U-shaped groove 222 (the aforementioned first U-shaped groove) with an opening facing the wiper blade direction is provided.

[0018] Specifically refer to Figure 2 , before the side of the wiper blade connecting piece 200 away from the U-shaped groove 222 is lifted by an angle in the direction away from the wiper blade 300 (direction 430), the elastic buckle 120 is embedded in the U-shaped groove 222, restricting the wiper blade connecting piece 200 from withdrawing from the fixed seat 100 in the second direction 420.

[0019] After the side of the wiper blade connecting piece 200 away from the U-shaped groove 222 is lifted by an angle in the direction away from the wiper blade 300 (direction 430), the bottom 222a of the U-shaped groove 222 presses the elastic buckle 120 in the direction towards the wiper blade 300 (direction 440), causing the elastic buckle 120 to deform and withdraw from the U-shaped groove 222, and further enabling the wiper blade connecting piece 200 to withdraw from the fixed seat 100 in the second direction 420.

[0020] The aforementioned first direction 410 is opposite to the second direction 420, and the direction away from the wiper blade 300 (direction 430) is opposite to the direction towards the wiper blade 300 (direction 440).

[0021] In addition, on one side surface 111 of the connection part 110 where the fixed seat 100 is connected to the wiper blade connecting piece 200, a hard buckle 130 is also provided. The hard buckle 130 and the elastic buckle 120 are located on both sides of the rotating shaft 112 in the first direction 410; at a position on the leeward surface 220 of the wiper blade connecting piece 200 corresponding to the hard buckle 130, a U-shaped groove 223 (the aforementioned second U-shaped groove) with an opening facing the wiper blade 300 direction (direction 440) is provided. The hard buckle 130 is inclined in the direction parallel to the first direction 410, and the U-shaped groove 223 is inclined in a shape adapted to the inclination of the hard buckle 223 in the direction parallel to the first direction 410, which facilitates the smooth lifting of the side of the wiper blade connecting piece 200 away from the U-shaped groove 222 in the direction away from the wiper blade 300 (direction 430).

[0022] Before the side of the wiper blade connecting piece 200 away from the U-shaped groove 222 is lifted by an angle in the direction away from the wiper blade 300 (direction 430), the hard buckle 130 is embedded in the U-shaped groove 223. After the side of the wiper blade connecting piece 220 away from the U-shaped groove 222 is lifted by an angle in the direction away from the wiper blade 300 (direction 430), the hard buckle 130 disengages from the U-shaped groove 223.

Claims

1. A secondary locking structure for a high-speed wiper arm connecting member, comprising a fixed seat and a wiper blade connecting member, wherein the fixed seat is used for fixing the wiper blade; a rotating shaft is arranged on one side surface of a connecting portion where the fixed seat is connected to the wiper blade connecting member; the wiper blade connecting member has a U-shaped structure and has a windward surface and a leeward surface, and a U-shaped opening groove is formed on the leeward surface. During installation, the wiper blade connecting member is inserted into the fixed seat from a first direction, and the U-shaped opening groove is stuck on the rotating shaft, so that the wiper blade connecting member is hinged to the fixed seat. It is characterized in that, On one side surface of the connection part where the fixed seat is connected to the wiper connecting piece, an elastic buckle is provided. The elastic buckle is located in front of the rotating shaft in the first direction. At a position on the leeward side of the wiper connecting piece corresponding to the elastic buckle, a first U-shaped groove with an opening facing the wiper direction is provided; before the side of the wiper connecting piece away from the first U-shaped groove is lifted away from the wiper by an angle, the elastic buckle is embedded in the first U-shaped groove to limit the wiper connecting piece from withdrawing from the fixed seat in the second direction; after the side of the wiper connecting piece away from the first U-shaped groove is lifted away from the wiper by an angle, the bottom of the first U-shaped groove presses the elastic buckle in the wiper direction, causing the elastic buckle to deform and withdraw from the first U-shaped groove, and further causing the wiper connecting piece to withdraw from the fixed seat in the second direction; the first direction is opposite to the second direction.

2. The secondary locking structure of a high-speed scraping arm connecting piece according to claim 1, characterized in that, On one side surface of the connection part where the fixed seat is connected to the wiper connecting piece, a hard buckle is further provided. The hard buckle and the elastic buckle are located on both sides of the rotating shaft in the first direction; at a position on the leeward side of the wiper connecting piece corresponding to the hard buckle, a second U-shaped groove with an opening facing the wiper direction is provided. Before the side of the wiper connecting piece away from the first U-shaped groove is lifted away from the wiper by an angle, the hard buckle is embedded in the second U-shaped groove. After the side of the wiper connecting piece away from the first U-shaped groove is lifted away from the wiper by an angle, the hard buckle disengages from the second U-shaped groove.

3. The secondary locking structure of a high-speed scraping arm connector according to claim 2, characterized in that The hard buckle is inclined in the direction parallel to the first direction, and the second U-shaped groove is inclined in a shape adapted to the inclination of the hard buckle in the direction parallel to the first direction.

Images