CN211335901U

CN211335901U - Improved windshield wiper connecting base and joint lower cover

Info

Publication number: CN211335901U
Application number: CN201922020327.6U
Authority: CN
Inventors: 王书屋
Original assignee: Xiamen Fuke Car Accessories Co Ltd
Current assignee: Xiamen Fuke Car Accessories Co Ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-08-25
Anticipated expiration: 2029-11-21

Abstract

An improved windshield wiper connecting base is provided with a bottom plate, the bottom of the bottom plate is used for fixing a windshield wiper adhesive tape, the top of the bottom plate is provided with a first connecting plate and a second connecting plate which are parallel to each other and extend upwards at intervals along the width direction of the bottom plate, a scraping arm connecting part is arranged between the first connecting plate and the second connecting plate, and the outer walls of the first connecting plate and the second connecting plate are respectively provided with at least one limiting groove from top to bottom; the lower joint cover is at least provided with two side walls, convex edges with the same number as that of limiting grooves in the windshield wiper connecting base are arranged on the inner walls of the side walls, and the convex edges are opposite to the limiting grooves and embedded in the limiting grooves.

Description

Improved windshield wiper connecting base and joint lower cover

Technical Field

The invention relates to the technical field of wiper systems assembled on motor vehicles, in particular to a wiper connecting base and a joint lower cover on a connecting device on a wiper.

Background

The conventional wiper is connected with the driving arm by a connecting device disposed at the middle thereof, as shown in fig. 1 and 2, a common connecting device usually has a wiper connecting base 2a and a cover structure (not shown) adapted to protect and limit the movement of the wiper arm, the cover structure at least has a joint lower cover 1a, the wiper connecting base 2a includes a bottom plate 21a and two connecting plates 22a, the joint lower cover 1a has

ribs

11a, 12a on the side wall, when the joint lower cover 1a is connected with the wiper connecting base 2a, the

ribs

11a, 12a are located right at the left and right sides of the two connecting plates 22a of the wiper connecting base 2a for limiting the relative displacement of the joint lower cover 1a with respect to the wiper connecting base 2a along the axial direction, but this design is made of plastic material for the joint lower cover 1a, the interior of the connecting base is hollow, the strength of the connecting base is usually realized by increasing the wall thickness of the two connecting plates 22a, in the using process, the lower joint cover 1a is easily expanded and deformed outwards due to the fact that the lower joint cover is subjected to reciprocating radial extrusion of the wiper connecting base 2a for a long time, and the two connecting plates 22a of the wiper connecting base 2a are easily expanded and deformed, so that the lower joint cover 1a cannot be stably connected with the wiper connecting base 2a, the stability of the wiper is affected, the service life of a wiper product is shortened

In view of this, the utility model newly designs a cooperation structure between windshield wiper connection base and the lower cover for solve foretell problem.

SUMMERY OF THE UTILITY MODEL

A first object of the utility model is to provide a novel windshield wiper connects base for it has the long service life of better installation stability and product when with joint lower cover interconnect.

A second object of the present invention is to provide a joint lower cover with foretell windshield wiper connection base looks adaptation, satisfying under the same structural strength prerequisite, the joint lower cover that uses this structure can produce with still less material, and has the long service life of better installation stability and product when being connected base interconnect with the windshield wiper.

In order to achieve the first object of the present invention, the present invention provides one embodiment of an improved windshield wiper connecting base, which is used for connecting a windshield wiper rubber strip and a driving arm; the windshield wiper connecting base is provided with a bottom plate, the top of the bottom plate is provided with a first connecting plate and a second connecting plate which are parallel to each other and extend upwards at intervals along the width direction of the bottom plate, a scraping arm connecting part is arranged between the first connecting plate and the second connecting plate, and the outer walls of the first connecting plate and the second connecting plate are respectively provided with at least one limiting groove from top to bottom.

For realizing the utility model discloses a second purpose, the utility model discloses still disclose one of them embodiment of the joint lower cover of base looks adaptation is connected with foretell windshield wiper, the joint lower cover two lateral walls have at least, the inner wall of lateral wall on be equipped with the bead unanimous with the spacing groove quantity on the windshield wiper connection base, bead and spacing groove relative and embedded in the spacing inslot.

Above-mentioned design, owing to increased at least one spacing groove on the first connecting plate of base, the second connecting plate are connected to the windshield wiper, spacing cooperation between the bead of spacing groove and joint lower cover, this spacing groove can avoid connecting and producing relative displacement between the base with the windshield wiper.

The utility model discloses still disclose the second embodiment that the base was connected to the windshield wiper, it is further, the top end face of the bottom plate that the base was connected to the windshield wiper still add and have two locking holes at least, the locking hole be located the outer end of first connecting plate and second connecting plate respectively.

The lower cover of the joint is matched with the windshield wiper connecting base, the inner side wall of the lower cover of the joint is provided with locking points with the same number as the locking holes on the windshield wiper connecting base, and the locking points are inserted into the locking holes.

According to the design, on the premise that the first connecting plate and the second connecting plate of the windshield wiper connecting base are provided with the limiting grooves, the locking holes are additionally formed in the bottom plate, the locking points are additionally arranged above the joint lower cover relative to the locking holes, when the locking points are inserted into the locking holes, the front and back movement and the left and right movement between the windshield wiper connecting base and the joint lower cover are further limited, the two side walls of the joint lower cover are limited from being extruded radially by the windshield wiper connecting base to generate elastic deformation outwards, the whole connecting device has better installation stability, and the service life of the windshield wiper connecting base is longer.

The utility model also discloses a third embodiment of the windshield wiper connecting base, further, the outer walls of the first connecting plate and the second connecting plate are respectively and symmetrically provided with a first limiting groove and a second limiting groove from top to bottom, and the first limiting groove and the second limiting groove are respectively positioned at the head end and the tail end of the first connecting plate and the second connecting plate; the top end face of the bottom plate is provided with four locking holes, the locking holes are respectively positioned at the outer ends of the first connecting plate and the second connecting plate, and the locking holes respectively extend along the width directions of the first limiting groove and the second limiting groove of the first connecting plate and extend along the width directions of the first limiting groove and the second limiting groove of the second connecting plate.

The lower joint cover is matched with the windshield wiper connecting base, a first rib and a second rib matched with the first limiting groove and the second limiting groove are arranged on the inner wall of the side wall of the lower joint cover, locking points are respectively arranged at the bottoms of the first rib and the second rib, the first rib is opposite to the first limiting groove and is embedded in the first limiting groove, the second rib is opposite to the second limiting groove and is embedded in the second limiting groove, and the locking points are used for being inserted into locking holes of the windshield wiper connecting base.

By adopting the scheme, the limiting groove and the locking hole are formed in the same plane on the windshield wiper connecting base, the processing and the manufacturing are convenient, the limiting groove is formed in the head end and the tail end of the first connecting plate and the second connecting plate, the stress distribution between the windshield wiper connecting base and the lower joint cover is more uniform, the stability of connection between the windshield wiper connecting base and the lower joint cover is further improved, and the service life of a product is prolonged.

Drawings

FIG. 1 is a schematic view of a conventional wiper connecting base and a lower cover of a joint;

FIG. 2 is a schematic view of a conventional wiper blade with a lower cover attached;

fig. 3 is a schematic view of a wiper connecting base and a joint lower cover according to a first embodiment of the present invention;

FIG. 4 is a schematic view of a wiper connecting base and a joint lower cover according to a first embodiment of the present invention;

fig. 5 is a schematic view of a wiper connecting base and a joint lower cover according to a second embodiment of the present invention;

fig. 6 is a schematic view of a wiper connecting base and a joint lower cover according to a third embodiment of the present invention;

fig. 7 is a schematic view of a joint lower cover of a third embodiment of the present invention, as viewed from below;

fig. 8 is a schematic view showing the installation of the wiper connecting base and the joint lower cover according to the third embodiment of the present invention.

Reference numerals

Windshield wiper connecting base 1 bottom plate 11 first connecting plate 12 second connecting plate 13

The scraping arm connecting part 14 locking hole 15 is provided with a first limiting groove 17 and a second limiting groove 18

Locking point 22 of side wall 21 of lower connector cover 2, first rib 24 and second rib 25

The recess 111 and the projection 211 of the flared portion 19 penetrate into the hole 16 to abut against the rib 26.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

Example 1

As shown in fig. 3, the present invention discloses an improved windshield wiper connecting base 1b and a lower cover 2b, the wiper connecting base 1b is provided with a bottom plate 11, the bottom of the bottom plate 11 can fix the wiper rubber strip by clamping the elastic sheets arranged at the two sides of the wiper rubber strip, or the rubber strip of the windshield wiper is clamped by the bearing clip, the specific structure of which can be seen in CN108583517A, namely, the bearing clamping piece can be used for penetrating through the elastic piece and the windshield wiper adhesive tape, in a word, the bottom plate can realize the fixation of the windshield wiper adhesive tape, the top part of the bottom plate 11 is provided with a first connecting plate 12 and a second connecting plate 13 which are parallel to each other at intervals and extend upwards along the width direction, a wiper arm connecting part 14 is arranged between the first connecting plate 12 and the second connecting plate 13, and the wiper arm connecting part 14 is a connecting shaft and is used for hinging a wiper joint (not shown) which is used for being matched with a wiper arm; the outer walls of the first connecting plate 12 and the second connecting plate 13 are respectively provided with a first limiting groove 17 from top to bottom, the first limiting groove 17 is positioned between the first connecting plate 12 and the second connecting plate 13, the top of the first limiting groove 17 is provided with an opening part 19, the bottom of the first limiting groove 17 is not lower than the end surface of the top of the bottom plate 11, and the first limiting groove 17 is only contacted with the first connecting plate 12 and the second connecting plate 13; the bottom side of the bottom plate 11 is provided with a concave part 111; meanwhile, fig. 3 also discloses a joint lower cover 2b matched with the windshield wiper connecting base 1b, wherein the joint lower cover 2b at least comprises two side walls 21, and the inner cavity of the joint lower cover is hollow; the inner sides of the two side walls 21 are respectively provided with two resisting ribs 26, and the two resisting ribs 26 are arranged on the outer sides of the first connecting plate 12 and the second connecting plate 13 on the windshield wiper connecting base 1; a first convex rib 24 is arranged between the two resisting convex ribs 26, and the position of the first convex rib 24 is opposite to the position of the first limit groove 17 on the windshield wiper connecting base 1 b; the side walls 21 also each have a protrusion 211 on the bottom of the inner side.

When the joint lower cover 2b and the wiper connecting base 1b are nested and connected with each other: the first convex rib 24 of the joint lower cover 2b is opposite to the first connecting plate 12 of the wiper connecting base 1b and the first limit groove 17 of the second connecting plate 13, then the first convex rib 24 of the joint lower cover 2b is embedded in the first limit groove 17 along the flared part 19 of the first limit groove 17 of the wiper connecting base 1b in a downward sliding manner, the first connecting plate 12 and the second connecting plate 13 on the wiper connecting base 1b are just positioned between the two resisting convex ribs 26 on the side wall 21 of the joint lower cover 2b, and meanwhile, the convex part 211 on the joint lower cover 2b is clamped in the concave part 111 on the wiper connecting base 1, because the limit matching of the first convex rib 24 and the first limit groove 17 is added between the joint lower cover 2b and the wiper connecting base 1b, the relative movement between the joint lower cover 2b and the wiper connecting base 1b is further ensured, and the connection stability of the joint lower cover 2b and the wiper connecting base 1b is improved, with this arrangement, the provision of the joint lower cover 2b retaining ribs 26 can be substantially omitted to save costs.

As shown in fig. 4, the present invention adds a more optimized design for the first embodiment, namely, the depth of the bottom end of the first limiting groove 17 is increased to make it sink to the lower part of the top end face of the bottom plate 11 of the wiper connecting base 1b, at this time, the deep hole 16 exists between the first limiting groove 17 and the top end face of the bottom plate 11, and the first convex rib 24 on the joint lower cover 2e extends its length, the elongated first rib 24 is inserted into the deep hole 16 during fitting, which not only further restricts axial and radial play between the wiper connecting base 1e and the joint lower cover 2e, but also provides better connection stability, meanwhile, the first convex rib 24 can be inserted into the deep hole 16, so that the time of outward expansion deformation of the lower joint cover 2e caused by repeated extrusion of the wiper connecting base 1b along the radial direction can be delayed, and the service life of the lower joint cover is prolonged.

Example 2

As shown in fig. 5, the present invention discloses a second wiper connecting base 1c and a joint lower cover 2c, the second embodiment is basically the same as the embodiment 1, only that at least two locking holes 15 are added on the wiper connecting base 1 c; the wiper connecting base 1c of the present embodiment has at least one locking hole 15 on each of the left and right sides of the top end surface of the bottom plate 11, and the locking holes 15 are located outside the bottom plate 11, the first connecting plate 12 and the second connecting plate 13; the joint lower cover 2c which is matched with the joint lower cover at the same time is provided with a locking point 22 with a corresponding position; when the wiper connecting base 1c is installed on the lower joint cover 2c, the first connecting plate 12 and the second connecting plate 13 on the wiper connecting base 1c are positioned between the retaining ribs 26 on the side wall 21 of the lower cover, the first rib 24 is embedded in the first limiting groove 17 through the flared part 19, the locking point 22 is inserted into the locking hole 15, the convex part 211 is clamped in the concave part 111 on the wiper connecting base 1c, at this time, relative displacement between the wiper connecting base 1c and the lower joint cover 2c cannot be generated at will, and simultaneously, due to the addition of the locking point 22, the movement between the wiper connecting base 1c and the lower joint cover 2c in the front-back and left-right directions is further limited, and the radial extrusion of the wiper connecting base 1c by the two side walls 21 of the lower joint cover 2c to generate elastic deformation outwards, so that the whole device has better installation stability, and the service life of the joint lower cover 2c is made longer.

Example 3

As shown in fig. 6, the structure of the wiper connecting base 1d and the joint lower cover 2d according to the third embodiment of the present invention is substantially the same as that of embodiment 1, and there is only a difference in the position and number of the position limiting grooves and the position and number of the locking holes 15; the outer walls of the first connecting plate 12 and the second connecting plate 13 on the wiper connecting base 1d of the present embodiment are respectively and symmetrically provided with a first limiting groove 17 and a second limiting groove 18 from top to bottom, the first limiting groove 17 and the second limiting groove 18 are respectively located at the head and tail ends of the first connecting plate 12 and the second connecting plate 13, meanwhile, the top end surface of the bottom plate 11 is provided with four locking holes 15, the locking holes 15 are respectively located at the outer ends of the first connecting plate 12 and the second connecting plate 13, the locking holes 15 respectively extend along the width directions of the first limiting groove 17 and the second limiting groove 18 of the first connecting plate 12, and the width directions of the first limiting groove 17 and the second limiting groove 18 of the second connecting plate 13 extend; fig. 6 also discloses a lower joint cover 2d adapted to the lower joint cover, a first rib 24 and a second rib 25 adapted to the first limiting groove 17 and the second limiting groove 18 on the wiper connecting base 1d are disposed on the inner side of the sidewall 21 of the lower joint cover 2d, and the bottom ends of the first rib 24 and the second rib 25 are respectively provided with a locking point 22, as shown in fig. 7, and the locking point 22 is connected to the first rib 24 and the second rib 25.

When the wiper connecting base 1d and the lower joint cover 2d are installed, as shown in fig. 8, the first protruding rib 24 is embedded into the first limiting groove 17, the second protruding rib 25 is embedded into the second limiting groove 18, the locking point 22 is inserted into the locking hole 15, and the convex portion 211 is clamped into the concave portion 111 of the wiper connecting base.

In this embodiment, the locking holes 22 are arranged in the width direction of the first limiting groove 17 and the second limiting groove 18, so that the first limiting groove 17, the second limiting groove 18 and the locking holes 15 can be conveniently processed and manufactured; meanwhile, as the second limiting groove 18 is additionally arranged on the windshield wiper connecting base 1d, and the first limiting groove 17 and the second limiting groove 18 are respectively positioned at the head end and the tail end of the first connecting plate 12 and the second connecting plate 13 on the windshield wiper connecting base 1d, the stress between the joint lower cover 2d and the windshield wiper connecting base 1d is more uniform; and because the joint lower cover 2d and the wiper connecting base 1d are inserted into the locking hole 15 of the wiper joint base 1d through 4 locking points 22 to realize 4-point spacing, the joint lower cover 2d is more difficult to expand and deform outwards due to the radial extrusion of the wiper connecting base 1d, the stability of the connection between the joint lower cover 2d and the wiper connecting base 1d is further improved, and due to the adoption of the structure, the heights of the two side walls 21 of the joint lower cover 2d along the inserted side of the wiping arm can be reduced, and finally the overall height of a joint assembly formed by the joint lower cover 2d and the wiper connecting base 1d can be properly reduced, so that the wind resistance of the wiper joint assembly is effectively reduced.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. The utility model provides a base is connected to wiper of improvement, wiper connect base (1) on have bottom plate (11), the bottom of bottom plate (11) be used for realizing the fixed of wiper adhesive tape, the top of bottom plate (11) is upwards extended along its width direction interval and is equipped with two first connecting plate (12) and second connecting plate (13) that are parallel to each other, first connecting plate (12) and second connecting plate (13) between be equipped with and scrape arm connecting portion (14), its characterized in that, the outer wall of first connecting plate (12) and second connecting plate (13) respectively top-down be equipped with one first spacing groove (17) at least.

2. An improved wiper connecting base as defined in claim 1, wherein said bottom plate (11) has at least two locking holes (15) on its top end surface, said locking holes (15) being located at the outer ends of said first connecting plate (12) and said second connecting plate (13), respectively.

3. The improved wiper connecting base as claimed in claim 1, wherein the first and second connecting plates (12, 13) have first and second limiting grooves (17, 18) symmetrically formed on the outer walls thereof from top to bottom, and the first and second limiting grooves (17, 18) are respectively disposed at the ends of the first and second connecting plates (12, 13).

4. An improved wiper connecting base as set forth in claim 3, wherein the top end surface of the bottom plate (11) is provided with four locking holes (15), the locking holes (15) are respectively located at the outer ends of the first connecting plate (12) and the second connecting plate (13), and the locking holes (15) respectively extend in the width direction of the first limiting groove (17) and the second limiting groove (18) of the first connecting plate (12) and the width direction of the first limiting groove (17) and the second limiting groove (18) of the second connecting plate (13).

5. An improved wiper connection base according to any of claims 1-4, characterised in that the limiting groove (17) has a flared portion (19) at the top.

6. A lower cover fitting to the wiper connecting base according to claim 1, wherein the lower cover (2) has at least two side walls (21), and the inner walls of the side walls (21) are provided with a number of ribs (24) corresponding to the number of the retaining grooves (17) of the wiper connecting base (1) according to claim 1, and the ribs (24) are opposite to the retaining grooves (17) and are embedded in the retaining grooves (17).

7. The joint lower cover according to claim 6, wherein when the top end surface of the bottom plate (11) has at least two locking holes (15), the locking holes (15) are respectively located at the outer ends of the first connecting plate (12) and the second connecting plate (13), the inner side wall (21) of the joint lower cover (2) is provided with locking points (22) with the same number as the locking holes (15), and the locking points (22) are inserted into the locking holes (15).

8. The joint lower cover according to claim 6, wherein when the outer walls of the first connecting plate (12) and the second connecting plate (13) are respectively and symmetrically provided with a first limiting groove (17) and a second limiting groove (18) from top to bottom, the first limiting groove (17) and the second limiting groove (18) are respectively located at the head end and the tail end of the first connecting plate (12) and the second connecting plate (13), the inner wall of the side wall (21) is provided with a first rib (24) and a second rib (25) which are matched with the first limiting groove (17) and the second limiting groove (18), the first rib (24) is opposite to the first limiting groove (17) and is embedded in the first limiting groove (17), and the second rib (25) is opposite to the second limiting groove (18) and is embedded in the second limiting groove (18).

9. The joint lower cover according to claim 8, wherein when the top end surface of the bottom plate (11) is provided with four locking holes (15), the locking holes (15) are respectively located at the outer ends of the first connecting plate (12) and the second connecting plate (13), and the locking holes (15) respectively extend along the width direction of the first limiting groove (17) and the second limiting groove (18) of the first connecting plate (12), and the width direction of the first limiting groove (17) and the second limiting groove (18) of the second connecting plate (13); the bottom ends of the first protruding edge (24) and the second protruding edge (25) extend inwards to form locking points (22), and the locking points (22) are used for being inserted into the locking holes (15).