CN217835576U

CN217835576U - Improved wiper blade structure

Info

Publication number: CN217835576U
Application number: CN202221854288.5U
Authority: CN
Inventors: 李万军; 江世旭
Original assignee: Anhui Shenghuabo Auto Electric Co ltd
Current assignee: Anhui Shenghuabo Auto Electric Co ltd
Priority date: 2022-07-04
Filing date: 2022-07-04
Publication date: 2022-11-18
Anticipated expiration: 2032-07-04

Abstract

The utility model discloses an improved wiper blade structure, which comprises a wiper arm, a fixed seat, a connecting piece, a spring piece and an adhesive tape, wherein the upper part of one side of the end part facing the fixed connecting part is provided with an elastic check buckle extending towards the direction of the connecting part of the fixed seat; the wiper arm is provided with a connecting piece connecting part, the section of the connecting piece connecting part is in a U shape matched with the appearance of the fixed connecting part of the connecting piece and is provided with a top wall and two side walls, a backstop catching groove is formed in the inner surface of the top wall, during assembly, the connecting piece connecting part is inserted and covered on the connecting piece, an elastic backstop buckle is inserted into the connecting piece connecting part, the elastic backstop buckle is under the action of elasticity, and a buckle head of the elastic backstop buckle is buckled into the backstop catching groove to realize backstop. Compared with the prior art, the utility model, when the assembly, the surface of connecting piece can not contact with the wiper arm, and the part of its contact all can not expose, consequently the outward appearance is harmless when the assembly, simultaneously the utility model discloses still have simple structure, assemble simple advantage.

Description

Improved wiper blade structure

Technical Field

The utility model relates to a windscreen wiper technical field, in particular to improvement type windscreen wiper piece structure

Background

The windscreen wiper for car is a sheet structure installed in front of windscreen, and is formed from motor, speed reducer, four-bar mechanism, wiper arm mandrel and wiper blade assembly, etc.

The connectors in many current car wipers are connected to the wiper arm by elastic bosses, for example DE602005004372T2, EP 16993260B 1, ES2298934T3, US8479349B2, KR101693392B1, CN102365193B, DE602009001657T2, EP2236366B1, ES2369052T3, JP 1768B2, KR101693392B1, US9555774B2, US9738261B2, CA2574330A1, DE 880602010644D 1, DE 602010644T 2, EP 3898B1, ES2298684T3, JP 48748768B 2, KR101343136B1, MX 00547A, US7979950B2, US9290157B2, US 0518552B 2, US 0099B2 and CN 728682 when the elastic connectors are assembled in elastic bosses and elastic holes in the wiper arms, so that the elastic connectors are assembled together with the wiper arms when the wiper arms are mounted in the elastic bosses and the wiper arms are inserted into the elastic bosses. In this method, a hole needs to be formed in the wiper arm, burrs are likely to be formed after the hole is formed, the surface of the button is easily scratched by the burrs during assembly, and the scratched surface of the button is exposed out of the hole after assembly, so that the appearance of the wiper arm is affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that need set up the hole on the arm is scraped to prior art and just can realize that the arm is scraped to the rain with the connecting piece is connected the problem that exists influence the windscreen wiper arm outward appearance and provide a structure and assembly simply and improvement type windscreen wiper piece structure that windscreen wiper arm outward appearance is harmless

In order to achieve the above object, the utility model discloses an improved wiper blade structure, including wiper arm, fixing base, connecting piece, spring leaf and adhesive tape, wherein: the adhesive tape passes through the spring leaf to be installed on the fixing base, the connecting piece divide into the cross-section be the fixing base connecting portion of U font and with the end portion of fixing base connecting portion one end body coupling, fixing base connecting portion cover be in on the fixing base and with the fixing base is articulated, its characterized in that: the upper part of one side of the end head part facing the fixed connecting part is provided with an elastic backstop buckle extending towards the direction of the connecting part of the fixed seat; the wiper arm has a connecting piece connecting portion, the cross-section of connecting piece connecting portion be with the U font of the fixed connection portion appearance looks adaptation of connecting piece has a roof and both sides wall the internal surface of roof is provided with the stopping catching groove, during the assembly, the connecting piece connecting portion are inserted and are covered on the connecting piece, elasticity stopping is detained and is inserted in the connecting piece connecting portion, elasticity stopping is detained under the spring action, the buckle head that elasticity stopping was detained is detained in the stopping catching groove.

In a preferred embodiment of the present invention, the connecting portion of the fixing base, which has a U-shaped cross section and is formed with a top portion and two side portions, and at least one concave pit is formed on an outer surface of at least one of the side portions; at least one boss is arranged on the inner surface of the side wall of the connecting part corresponding to the side part provided with the pit, and the boss is embedded into the pit during assembly.

In a preferred embodiment of the present invention, the elastic anti-back-off buckle has a pressing portion, an L-shaped buckle connection portion and a buckle, one end of the pressing portion is integrally connected to the end portion in a cantilever manner, a vertical portion of the L-shaped buckle connection portion is connected to the other end of the pressing portion and extends in a first direction, and a buckle extending in a second direction is disposed at an end of the vertical portion of the L-shaped buckle connection portion, wherein the first direction is opposite to the second direction; and a U-shaped notch with the shape matched with that of the pressing part is arranged on the top wall of the connecting part, the opening side of the U-shaped notch is close to the end head part, and the pressing part is inserted into the U-shaped notch during assembly.

In a preferred embodiment of the present invention, the width of the pressing portion perpendicular to the length direction of the adhesive tape is greater than the width of the L-shaped buckle connecting portion perpendicular to the length direction of the adhesive tape and less than the width of the end portion perpendicular to the length direction of the adhesive tape.

In a preferred embodiment of the present invention, a distance between outer surfaces of both side walls of the connecting member connecting portion of the wiper arm perpendicular to the lengthwise direction of the adhesive tape is equal to a distance between two outer surfaces of the end portion perpendicular to the lengthwise direction of the adhesive tape.

Since the technical scheme as above is used, compared with the prior art, the utility model, when assembling, the surface of connecting piece can not contact with the wiper arm, and the part of its contact all can not expose, consequently the outward appearance is harmless when the assembly, simultaneously the utility model discloses still have simple structure, assemble simple advantage.

Drawings

Fig. 1 is a schematic perspective view of the improved wiper blade structure of the present invention (with the wiper arm removed).

Fig. 2 is a front view of the improved wiper blade structure (with the wiper arm removed).

Fig. 3 isbase:Sub>A sectional viewbase:Sub>A-base:Sub>A of fig. 1.

Fig. 4 is a schematic perspective view of the connector of the present invention.

Fig. 5 is a top view of the connector of the present invention.

Fig. 6 isbase:Sub>A sectional viewbase:Sub>A-base:Sub>A of fig. 5.

Fig. 7 is a cross-sectional view taken along line D-D of fig. 6.

Fig. 8 is a plan view of the wiper arm of the present invention.

Fig. 9 is a cross-sectional view E-E of fig. 8.

Fig. 10 is a cross-sectional view C-C of fig. 8.

Fig. 11 is an enlarged schematic view at I of fig. 9.

Fig. 12 is a schematic front view illustrating a process of inserting the connector into the wiper arm according to the present invention.

Fig. 13 is a schematic perspective view illustrating a process of inserting the connecting member into the wiper arm according to the present invention.

Fig. 14 is a front view schematically illustrating the insertion of the connector into the wiper arm according to the present invention.

Fig. 15 is a sectional view B-B of fig. 14.

Fig. 16 is a schematic top view of the connector of the present invention inserted into a wiper arm.

Fig. 17 is a cross-sectional view C-C of fig. 16.

Detailed Description

The following detailed description is provided for the specific embodiments of the present invention with reference to the accompanying drawings.

Referring to fig. 1 to 3, there is shown an improved wiper blade structure including a wiper arm 10, a holder 20, a connector 30, a spring plate 40 and a rubber strip 50, wherein: the rubber strip 50 is mounted on the fixed base 20 through the spring piece 40.

The connecting piece 30 is divided into a fixing seat connecting part 31 with a U-shaped section and an end head part 32 integrally connected with one end of the fixing seat connecting part 31, and the fixing seat connecting part 31 covers the fixing seat 20 and is hinged with the fixing seat 20.

The above is prior art and will not be described further. The utility model is characterized in that:

referring to fig. 4 to 7, an elastic anti-releasing buckle 33 extending toward the fixing seat connecting portion 31 is disposed on the upper portion of the end portion 32 facing the fixing seat connecting portion 31; the elastic check button 33 is substantially located above the holder connecting part 31 and spaced apart from the top 31a of the holder connecting part 31 by a certain distance, thereby facilitating the movement of the elastic check button 33.

The elastic anti-back buckle 33 has a pressing portion 33a, an L-shaped buckle connecting portion 33b and a buckle 33c, wherein one end of the pressing portion 33a is integrally connected to the end surface 32a of the end portion 32 in a cantilever manner. A vertical portion 33ba of the L-shaped buckle connection portion 33b is connected to the other end of the pressing portion 33a and extends in a first direction (downwardly extending in fig. 6), a straight portion 33bb of the L-shaped buckle connection portion 33b extends in a direction away from the end portion 32 (leftward extending in fig. 6), and a buckle 33c extending in a second direction (upwardly extending in fig. 6) is provided at an end of the straight portion 33bb of the L-shaped buckle connection portion 33 b. The side of the locking head 33c facing the left side in fig. 6 is a slope 33ca.

The width L1 of the pressing portion 33a perpendicular to the longitudinal direction of the rubber strip 50 is greater than the width L3 of the L-shaped buckle connecting portion 33b perpendicular to the longitudinal direction of the rubber strip 50 and less than the width L4 of the end head portion 32 perpendicular to the longitudinal direction of the rubber strip 50.

The fixing seat connecting part 31 is provided with a top part 31a and two side parts 31b, and two concave pits 31ba are arranged on the outer surfaces of the two side parts 31 b; the two pits 31ba are arranged at intervals, a hinge hole 31bb is formed in the middle, and the connecting piece 30 is hinged on the fixed seat 20 through the hinge hole 31 bb.

Referring to fig. 8 to 11 in particular, the wiper arm 10 has a connector attachment portion 11, the connector attachment portion 11 has a U-shaped cross section corresponding to the outer shape of the fixed attachment portion 31 of the connector 30 and has a top wall 11a and two side walls 12a, and a retaining groove 11aa is formed in an inner surface of the top wall 11 a.

A U-shaped notch 11aa having a shape matching the shape of the pressing portion 33a is formed on the top wall 11a of the wiper arm 10, the opening side of the U-shaped notch 11aa is adjacent to the end portion 32, the width L4 of the U-shaped notch 11aa is substantially equal to the width L1 of the pressing portion 33a perpendicular to the longitudinal direction of the adhesive tape 50, and the depth L3 of the U-shaped notch 11aa is substantially equal to the length L2 of the pressing portion 33a parallel to the longitudinal direction of the adhesive tape 50.

The distance between the outer surfaces of the both side walls 12a of the connecting member attaching portion 11 of the wiper arm 10 in the direction perpendicular to the length L5 of the rubber strip 50 is equal to the distance L6 between the outer surfaces of the head portion 32 in the direction perpendicular to the length of the rubber strip 50.

Two bosses 12aa are provided on the inner surface of the side wall 12a corresponding to the both side portions 31b of the connector link 11 and the holder link 31 provided with the recess 31 ba.

Referring to fig. 12 to 17 in particular, during assembly, the connector 30 with the adhesive tape 50, the spring plate 40 and the fixing base 20 mounted thereon is inserted into the connector connecting portion 11 of the wiper arm 10 in the direction of arrow a shown in fig. 12, and during the insertion process, the top wall 11a in the connector connecting portion 11 of the wiper arm 10 forces the button head 33c to move in a downward direction shown in fig. 12 by the inclined surface 33ca on the button head 33c, so that the button head 33c enters into the connector connecting portion 11. And the bosses 12aa of the connector coupling parts 11 force the side parts 31b of the holder coupling part 31 of the connector 30 to be inwardly contracted.

After the connecting piece 30 is inserted in place, the position of the fastening head 33c just at the anti-backing fastening groove 11aa is not limited, and the fastening head 33c of the elastic anti-backing fastener 33 is fastened into the anti-backing fastening groove 11aa under the action of elastic restoring force. Meanwhile, each boss 12aa on the connector connection part 11 exactly corresponds to each recess 31ba on the holder connection part 31, and the two side parts 31b of the holder connection part 31 are not restricted, and the two side parts 31b of the holder connection part 31 are popped out, so that each boss 12aa is embedded into the corresponding recess 31 ba. After the connector 30 is inserted into position, the end face 11b of the connector connecting portion 11 of the wiper arm 10 makes seamless contact with the end face 32a of the tip portion 32.

If the wiper arm 10 and the connector 30 need to be detached, the connector 30 can be pulled out from the wiper arm 10 only by pressing the pressing portion 33a downward to make the buckle head 33c exit the backstop buckle slot 11aa.

The utility model discloses when the assembly, the surface of connecting piece 30 can not contact with wiper arm 10, and the part of its contact all can not expose, and consequently the outward appearance is harmless when the assembly, simultaneously the utility model discloses still have simple structure, the simple advantage of assembly.

Claims

1. The utility model provides an improvement type wiper blade structure, includes wiper arm, fixing base, connecting piece, spring leaf and adhesive tape, wherein: the adhesive tape passes through the spring leaf to be installed on the fixing base, the connecting piece divide into the cross-section be the fixing base connecting portion of U font and with the end portion of fixing base connecting portion one end body coupling, fixing base connecting portion cover be in on the fixing base and with the fixing base is articulated, its characterized in that: the upper part of one side of the end head part facing the connecting part of the fixed seat is provided with an elastic anti-back buckle extending towards the direction of the connecting part of the fixed seat; the wiper arm has a connecting piece connecting portion, the cross-section of connecting piece connecting portion be with the U font of the fixing base connecting portion appearance looks adaptation of connecting piece has a roof and both sides wall the internal surface of roof is provided with the stopping catching groove, during the assembly, the connecting piece connecting portion are inserted and are covered on the connecting piece, elasticity stopping is detained and is inserted in the connecting piece connecting portion, elasticity stopping is detained under the spring action, the buckle head that elasticity stopping was detained is detained in the stopping catching groove.

2. An improved wiper blade structure as defined in claim 1 wherein the connecting portion of the fixing base having a U-shaped cross section has a top portion and two side portions, and at least one recess is formed in an outer surface of at least one of the side portions; at least one boss is arranged on the inner surface of the side wall of the connecting part corresponding to the side part provided with the pit, and the boss is embedded into the pit during assembly.

3. An improved wiper blade structure as defined in claim 1 or 2, wherein said elastic anti-release buckle has a pressing portion, an L-shaped buckle connecting portion and a buckle, one end of said pressing portion is integrally connected to said end portion in a cantilever manner, a vertical portion of said L-shaped buckle connecting portion is connected to the other end of said pressing portion and extends in a first direction, and a buckle extending in a second direction is provided at an end of a flat portion of said L-shaped buckle connecting portion, wherein said first direction is opposite to said second direction; and a U-shaped notch with the shape matched with that of the pressing part is arranged on the top wall of the connecting part, the opening side of the U-shaped notch is close to the end head part, and the pressing part is inserted into the U-shaped notch during assembly.

4. The improved wiper blade structure of claim 3, wherein the width of the pressing portion perpendicular to the length direction of the rubber strip is greater than the width of the L-shaped buckle connecting portion perpendicular to the length direction of the rubber strip and less than the width of the end portion perpendicular to the length direction of the rubber strip.

5. The improved wiper blade structure of claim 4, wherein the distance between the outer surfaces of the two sidewalls of the connecting part of the wiper arm perpendicular to the length direction of the adhesive tape is equal to the distance between the outer surfaces of the end part perpendicular to the length direction of the adhesive tape.