A connection structure of a wiper frame

Abstract

The present invention discloses a connection structure of a wiper frame, which comprises a main frame, a connecting frame and a fixed frame. The ends of the main frame at both ends are movably connected to the two connecting frames through clamps respectively; the ends of the connecting frame at both ends are movably connected to the two fixed frames through clips respectively. The present invention has the advantage of simple assembly and can effectively improve the assembly efficiency of the wiper frame.

Description

Technical Field

[0001] The invention relates to the field of windshield wipers, in particular to a connection structure of a windshield wiper frame. Background Art

[0002] A windshield wiper generally consists of a wiper blade, a wiper arm and a power part. The wiper blade includes a wiper frame and a wiper strip fixed on the wiper frame. The existing wiper frame generally includes a main frame, a connecting frame and a fixed frame. The two ends of the main frame are movably connected to the connecting frame, and the two ends of the connecting frame are movably connected to the fixed frame. The fixed frame is used to fix the wiper strip. The main frame is movably connected to the connecting frame and the connecting frame is movably connected to the fixed frame so that the connecting frame and the fixed frame of the wiper frame have a certain adjustment space. In this way, the wiper frame can be adjusted for windshields with different curvatures so that the wiper strip can completely fit the windshield.

[0003] At present, pins are generally used to hinge the main frame and the connecting frame, and to hinge the connecting frame and the fixed frame; however, the wiper frame connected by pins is more troublesome to assemble, and workers are required to pass the first pin through the pin hole of the main frame and the pin hole of the connecting frame and lock the first pin, and pass the second pin through the pin hole of the connecting frame and the pin hole of the fixed frame and lock the second pin. Since the pin holes are generally small and the pins require another mechanism to fix the pins, the existing wiper frames connected by pins have the problem of being more troublesome to assemble, resulting in low wiper frame assembly efficiency. Summary of the invention

[0004] The object of the present invention is to provide a connection structure of a wiper frame, which has the advantage of simple assembly and can effectively improve the assembly efficiency of the wiper frame.

[0005] In order to achieve the above object, the solution of the present invention is:

[0006] A connection structure of a wiper frame, which includes a main frame, a connecting frame and a fixed frame, wherein the ends of the main frame at both ends are movably connected to the two connecting frames through a clamping sleeve respectively; the ends of the connecting frame at both ends are movably connected to the two fixed frames through a clip respectively; the clamping sleeve includes a first clamping sleeve seat, and the first clamping sleeve seat is formed with a first through hole and a second through hole distributed up and down; the end of the main frame passes through the first through hole and cooperates with the first through hole gap, and the end of the main frame is clamped and cooperated with the first clamping sleeve seat; the connecting frame passes through the second through hole and cooperates with the second through hole gap, and the connecting frame The middle part is snap-fitted with the first ferrule seat; the clip includes a buckle plate and a base; a first cavity with openings at both ends is formed on the base; the buckle plate cooperates with the bottom of the base to form a second cavity with openings at both ends, one side of the buckle plate is hinged to the base, and the other side of the buckle plate is detachably connected to the base through a buckle structure; the end of the connecting frame is inserted into the first cavity and snap-fitted with the first cavity, and a gap is formed between the end of the connecting frame and the first cavity; the middle part of the fixed frame is accommodated in the second cavity and snap-fitted with the second cavity, and a gap is formed between the middle part of the fixed frame and the second cavity.

[0007] Fixed snap-ons are respectively provided on both sides of the end of the main frame, and connecting snap-ons are respectively provided on both sides of the middle of the connecting frame; one end of the first clamping seat is provided with a first elastic claw for buckling the fixed snap-on of the main frame and a second elastic claw for buckling the connecting snap-on of the connecting frame.

[0008] The ferrule also includes a second ferrule seat, which is connected to the first ferrule seat through a connecting plate; the second ferrule seat is formed with a third through hole and a fourth through hole distributed up and down, the third through hole is opposite to the first through hole, and the fourth through hole is opposite to the second through hole; the end of the main skeleton passes through the third through hole and cooperates with the gap of the third through hole; the connecting skeleton passes through the fourth through hole and cooperates with the gap of the fourth through hole.

[0009] A clamping hole is provided at the end of the connecting skeleton; a clamping groove is provided on the bottom surface of the middle part of the fixed skeleton; the top of the first cavity is an elastic plate, and a clamping block for buckling the clamping hole of the connecting skeleton is formed at the bottom of the elastic plate; a clamping strip for buckling the clamping groove of the fixed skeleton is formed on the inner surface of the buckle plate.

[0010] The buckle structure includes a protrusion arranged on the other side of the buckle plate and a card interface arranged on the base and used for engaging the protrusion.

[0011] After adopting the above structure, when assembling the present invention, there are four assembly processes, wherein the first assembly process is to pass the end of the main skeleton through the first through hole of the first ferrule seat and make the end of the main skeleton snap-fit ​​with the first ferrule seat; the second assembly process is to pass the connecting skeleton through the second through hole of the first ferrule seat and make the middle part of the connecting skeleton snap-fit ​​with the first ferrule seat; the third assembly process is to insert the end of the connecting skeleton into the first cavity of the clip so that the end of the connecting skeleton snap-fits with the first cavity; the fourth assembly process is to place the middle part of the fixed skeleton against the bottom surface of the base of the clip, and then snap the buckle plate with the base so that the middle part of the fixed skeleton is accommodated in the second cavity and snap-fits with the second cavity. Among these four assembly processes, the second assembly process must be performed before the third assembly process. Compared with the existing wiper skeleton connected by pins, the assembly of the present invention is simpler and can effectively improve the assembly efficiency of the wiper skeleton. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional schematic diagram of the present invention;

[0013] Figure 2 It is a three-dimensional schematic diagram of the ferrule of the present invention;

[0014] Figure 3 A top view of the ferrule of the present invention;

[0015] Figure 4 It is a cross-sectional view of the ferrule of the present invention;

[0016] Figure 5 It is a schematic diagram of the cooperation between the ferrule and the main frame and the connecting frame of the present invention;

[0017] Figure 6 for Figure 5 AA section view;

[0018] Figure 7 for Figure 5 BB cross-sectional view;

[0019] Figure 8 It is a three-dimensional schematic diagram of the buckle plate of the clip of the present invention when it is not buckled with the base;

[0020] Fig. 9 It is a three-dimensional schematic diagram of the buckle plate of the clip of the present invention being buckled with the base;

[0021] Fig.10 It is a cross-sectional view of the buckle plate of the clip of the present invention when it is buckled with the base;

[0022] Fig.11 It is a schematic diagram of the assembly of the fixing frame and the clip of the present invention;

[0023] Fig.12Schematic diagram of the cooperation between the clip of the present invention and the connecting frame and the fixing frame Figure 1 ;

[0024] Fig.13 Schematic diagram of the cooperation between the clip of the present invention and the connecting frame and the fixing frame Figure 2 ;

[0025] Fig.14 for Fig.13 Enlarged view of point a. DETAILED DESCRIPTION

[0026] In order to further explain the technical solution of the present invention, the present invention is described in detail below through specific embodiments.

[0027] like Figures 1 to 14 As shown, the present invention discloses a connection structure of a wiper skeleton, which includes a main skeleton 1, a connecting skeleton 2 and a fixed skeleton 3, the ends of the main skeleton 1 at both ends are movably connected to the two connecting skeletons 2 through a clamping sleeve 4; the ends of the connecting skeleton 2 at both ends are movably connected to the two fixed skeletons 3 through a clip 5, the middle part of the main skeleton 1 can be equipped with a fixing seat 6 for fixing the wiper arm, and the two ends of the fixed skeleton 3 are provided with clamping claws 7 for fixing the wiper strip.

[0028] Specific, cooperate Figures 2 to 7 As shown, the ferrule 4 includes a first ferrule seat 41, and the first ferrule seat 41 is formed with a first through-hole 411 and a second through-hole 412 distributed up and down; the end of the main skeleton 1 passes through the first through-hole 4111, and the end of the main skeleton 1 is snap-fitted with the first ferrule seat 41; the connecting skeleton 2 passes through the second through-hole 412, and the middle part of the connecting skeleton 2 is snap-fitted with the first ferrule seat 41; the end of the main skeleton 1 is loosely fitted with the first through-hole 411 and the connecting skeleton 2 is loosely fitted with the second through-hole 412 so that the main skeleton 1 and the connecting skeleton 2 can rotate relative to each other to a certain extent. The two sides of the end of the main skeleton 1 can be respectively provided with fixed bayonet 11, and the two sides of the middle part of the connecting skeleton 2 can be respectively provided with connecting bayonet 21; one end of the first clamping seat 41 is provided with a first elastic claw 413 for snapping the fixed bayonet 11 of the main skeleton 1 and a second elastic claw 414 for snapping the connecting bayonet 21 of the connecting skeleton 2, and the fixed bayonet 11 is snapped together with the first elastic claw 413 and the connecting bayonet 21 is snapped together with the second elastic claw 414 so that the end of the main skeleton 1 and the middle part of the connecting skeleton 2 are snapped together with the first clamping seat 41.

[0029] Cooperate Figures 2 to 7As shown, in order to strengthen the connection stability between the connecting skeleton 2 and the main skeleton 1 and the ferrule 4, the ferrule 4 also includes a second ferrule seat 42, which is connected to the first ferrule seat 41 through a connecting plate 43; the second ferrule seat 42 is formed with a third perforation 421 and a fourth perforation 422 distributed up and down, the third perforation 421 is opposite to the first perforation 411, and the fourth perforation 422 is opposite to the second perforation 412; the end of the main skeleton 1 passes through the third perforation 421 and is loosely matched with the third perforation 421; the connecting skeleton 2 passes through the fourth perforation 422 and is loosely matched with the fourth perforation 422; the connection stability between the connecting skeleton 2 and the main skeleton 1 and the ferrule 4 can be strengthened by limiting the end of the main skeleton 1 by the third perforation 421 and limiting the connecting skeleton 2 by the fourth perforation 422.

[0030] Cooperate Figures 8 to 14 As shown, the clip 5 includes a buckle plate 51 and a base 52; a first cavity 521 with openings at both ends is formed on the base 52; the buckle plate 51 cooperates with the bottom of the base 52 to form a second cavity 522 with openings at both ends, one side of the buckle plate 51 is hinged to the base 52, and the other side of the buckle plate 51 is detachably connected to the base 52 through a snap structure; the end of the connecting skeleton 2 is inserted into the first cavity 521 and snap-fitted with the first cavity 521, and the middle part of the fixed skeleton 3 is accommodated in the second cavity 522 and snap-fitted with the second cavity 522; a gap is formed between the end of the connecting skeleton 2 and the first cavity 521, and a gap is formed between the middle part of the fixed skeleton 3 and the second cavity 53 so that the fixed skeleton 3 and the connecting skeleton 2 can rotate relative to each other to a certain extent. The end of the connecting frame 2 may be provided with a locking hole 22; the bottom surface of the middle part of the fixed frame 3 is provided with a locking groove 31; the top of the first cavity 521 is an elastic plate 5211, and the bottom of the elastic plate 5211 is formed with a locking block 5212 for buckling the locking hole 22 of the connecting frame 2, and the end of the connecting frame 2 is engaged with the first cavity 521 through the engagement of the locking block 5212 with the locking hole 22; the inner surface of the buckle plate 51 is formed with a clamping strip 511 for buckling the locking groove 31 of the fixed frame 3, and the middle part of the fixed frame 3 is engaged with the second cavity 522 through the engagement of the clamping strip 511 with the locking groove 31. The buckle structure includes a protrusion 512 arranged on the other side of the buckle plate 51 and a clamping interface 523 arranged on the base 52 and used for engaging the protrusion 512.

[0031] When assembling the present invention, there are four assembly processes, wherein the first assembly process is to pass the end of the main skeleton 1 through the first through hole 411 of the first ferrule seat 41 and make the end of the main skeleton 1 snap-fit ​​with the first ferrule seat 41; the second assembly process is to pass the connecting skeleton 2 through the second through hole 412 of the first ferrule seat 41 and make the middle part of the connecting skeleton 2 snap-fit ​​with the first ferrule seat 41; the third assembly process is to insert the end of the connecting skeleton 2 into the first cavity 521 of the clip 5 so that the end of the connecting skeleton 2 snap-fits with the first cavity 521; the fourth assembly process is to place the middle part of the fixed skeleton 3 against the bottom surface of the base 52 of the clip 5, and then snap the gusset 51 with the base 52 so that the middle part of the fixed skeleton 2 is accommodated in the second cavity 522 and snap-fits with the second cavity 522. Among these four assembly processes, the second assembly process must be performed before the third assembly process. Compared with the existing wiper skeleton connected by pins, the assembly of the present invention is simpler and can effectively improve the assembly efficiency of the wiper skeleton.

[0032] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims

1. A connection structure of a wiper frame, comprising a main frame, a connecting frame and a fixed frame, characterized in that: The ends of both ends of the main frame are movably connected to the two connecting frames through ferrules; the ends of both ends of the connecting frame are movably connected to the two fixed frames through clips; The ferrule comprises a first ferrule seat, and the first ferrule seat is formed with a first through hole and a second through hole distributed up and down; the end of the main frame passes through the first through hole and matches with the first through hole gap, and the end of the main frame is engaged with the first ferrule seat; the connecting frame passes through the second through hole and matches with the second through hole gap, and the middle part of the connecting frame is engaged with the first ferrule seat; The clip includes a gusset plate and a base; a first cavity with openings at both ends is formed on the base; the gusset plate cooperates with the bottom of the base, one side of the gusset plate is hinged to the base, and the other side of the gusset plate is detachably connected to the base through a snap-fit ​​structure, and a second cavity with openings at both ends is formed between the gusset plate and the base; the end of the connecting frame is inserted into the first cavity and snap-fitted with the first cavity, and a gap is formed between the end of the connecting frame and the first cavity; the middle part of the fixed frame is accommodated in the second cavity and snap-fitted with the second cavity, and a gap is formed between the middle part of the fixed frame and the second cavity; The two sides of the end of the main frame are respectively provided with fixed bayonet holes, and the two sides of the middle of the connecting frame are respectively provided with connecting bayonet holes; one end of the first clamping seat is provided with a first elastic clamping claw for buckling the fixed bayonet hole of the main frame and a second elastic clamping claw for buckling the connecting bayonet hole of the connecting frame; A clamping hole is provided at the end of the connecting skeleton; a clamping groove is provided on the bottom surface of the middle part of the fixed skeleton; the top of the first cavity is an elastic plate, and a clamping block for buckling the clamping hole of the connecting skeleton is formed at the bottom of the elastic plate; a clamping strip for buckling the clamping groove of the fixed skeleton is formed on the inner surface of the buckle plate.

2. A connection structure of a wiper frame according to claim 1, characterized in that: The ferrule also includes a second ferrule seat, which is connected to the first ferrule seat through a connecting plate; the second ferrule seat is formed with a third through hole and a fourth through hole distributed up and down, the third through hole is opposite to the first through hole, and the fourth through hole is opposite to the second through hole; the end of the main skeleton passes through the third through hole and cooperates with the gap of the third through hole; the connecting skeleton passes through the fourth through hole and cooperates with the gap of the fourth through hole.

3. A connection structure of a wiper frame according to claim 1, characterized in that: The buckle structure comprises a protrusion arranged on the other side of the buckle plate and a card interface arranged on the base and used for engaging the protrusion.

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