CN215154477U - Windshield wiper connecting base and joint lower cover - Google Patents

Abstract

A windshield wiper connecting base and a joint lower cover are provided, wherein the windshield wiper connecting base comprises a base, a connecting seat is arranged in the middle of the top surface of the base, and the connecting seat at least comprises two connecting plates which are arranged in parallel along the length direction of the base; the joint lower cover at least comprises two side walls and a plurality of connecting pieces arranged between the two side walls, and a hollow part which is vertically hollowed out is formed by the two side walls and the connecting pieces in a surrounding manner; a limiting device is arranged between the side wall of the lower joint cover and/or the side wall and the connecting plate, and the limiting device is used for limiting the displacement of the windshield wiper connecting base relative to the lower joint cover in the length direction; the inner side of the side wall of each joint lower cover is at least provided with two clamping blocks and locking blocks from top to bottom at two ends along the length direction of a base of the windshield wiper connecting base, the clamping blocks are abutted against the top surface of the base, the locking blocks are abutted against the bottom surface of the base, and each clamping block and locking block form an up-down locking and fixing device which is arranged at the front end and the rear end of the base of the windshield wiper connecting base.

Description

Windshield wiper connecting base and joint lower cover

Technical Field

The utility model relates to a assemble the technical field of the wiper system on the motor vehicle, in particular to base and joint lower cover are connected to the windshield wiper on the connecting device on the windshield wiper.

Background

Different vehicles are equipped with different wipers, the traditional wiper is connected with the wiper arm through a connecting device arranged in the middle of the traditional wiper, the common connecting device is generally provided with a wiper connecting base 1 ' and a flip structure which is matched with the wiper connecting base and is used for protecting and limiting the movement of the wiper arm, the flip structure is at least provided with a joint lower cover 2 ', the traditional connecting device is shown in figure 1, the wiper connecting base 1 ' comprises a bottom plate 11 ' and two connecting plates 12 ', which are generally made of metal materials, and the bottoms of the two connecting plates 12 ' are provided with a groove 13 '; the lower connector cover 2 ' comprises two side walls 21 ', the interior of the lower connector cover is hollow, a protruding hook part 23 ' is arranged in the middle of the side wall 21 ', the two sides of the hook part 23 ' are also provided with side edges 22 ', when the lower connector cover is installed, the wiper connecting base 1 ' is inserted into the hollow part of the lower connector cover 2 ', and the hook part 23 ' is used for being clamped with the groove 13 ' on the connecting base and limiting the upward displacement of the connecting base relative to the lower connector cover 2 '; the side edges 22 ' are located on both sides of the connecting plate 12 ' of the connection base and are used for limiting the displacement of the connection base relative to the joint lower cover 2 ' in the front-rear direction.

SUMMERY OF THE UTILITY MODEL

The utility model discloses main objective is in order to solve the technical problem who exists between the base is connected to the windshield wiper that above-mentioned background art announced and the joint lower cover: the conventional connection between the windshield wiper connection base and the joint lower cover is matched with a hook part on the joint lower cover through a groove on the windshield wiper connection base, meanwhile, the connection is assisted with the abutting limit between two sides of a connecting plate of the windshield wiper connection base and two side edges of the joint lower cover, the windshield wiper connection base and the joint lower cover are fixed, in the actual production and manufacturing process, complete seamless butt joint cannot be realized between the connecting plate and the two side edges (the two side edges realize transition fit), in addition, in order to facilitate assembly, a gap of about 0.2mm generally exists between the connecting plate and the two side edges, because the buckle fit formed between the groove on the windshield wiper connection base and the hook part on the joint lower cover is positioned in the middle of the windshield wiper connection base, when the windshield wiper is in a working state, the joint lower cover can use the hook part as a swing fulcrum, and generates tiny up-and down swing relative to the windshield wiper connection base along the length direction; meanwhile, as the groove on the windshield wiper connecting base is in snap fit with the hook part of the joint lower cover, once the windshield wiper connecting base is used due to manufacturing errors or for a period of time (the conventional windshield wiper connecting base is made of metal, the joint lower cover is made of plastic, and the hook part of the joint lower cover is easy to wear), namely, a gap exists between the hook part and the groove, the hook part of the joint lower cover can also swing back and forth in the groove of the wiper connecting base along the length direction of the joint lower cover, because the hook part is generally positioned in the middle of the joint lower cover, the swing is transmitted to the two ends of the joint lower cover, the radian of the swing between the connection base of the lower cover and the windshield wiper is amplified in proportion, so that the technical problem of relative up-and-down swing between the connection base of the lower cover and the windshield wiper is further aggravated, the installation stability of the lower cover and the windshield wiper is influenced, and the wiping quality of the windshield wiper is reduced.

In order to solve the technical problem existing in the background art, the utility model discloses main aim at provides one kind and can make the windshield wiper connect the base and connect the more stable technical scheme of being connected between the lower cover.

In order to realize the purpose of the utility model, the utility model discloses a windshield wiper connecting base and a joint lower cover, wherein the windshield wiper connecting base comprises a base which is used for fixedly arranging a windshield wiper support, the middle part of the top surface of the base is provided with a connecting seat which is used for being connected with a wiping arm, the connecting seat at least comprises two connecting plates which are arranged in parallel along the length direction of the base, the joint lower cover at least comprises two side walls and a plurality of connecting pieces which are arranged between the two side walls, a hollow part which is vertically hollowed out is formed by the two side walls and the connecting pieces in a surrounding way, and the hollow part is used for accommodating the windshield wiper connecting base; a limiting device is arranged between the side wall of the lower joint cover and/or the side wall and the connecting plate, and the limiting device is used for limiting the displacement of the windshield wiper connecting base relative to the lower joint cover in the length direction; the inner side of the side wall of each joint lower cover is at least provided with two clamping blocks and locking blocks from top to bottom at two ends along the length direction of the base of the windshield wiper connecting base, the clamping blocks are abutted against the top surface of the base, the locking blocks are abutted against the bottom surface of the base, and each clamping block and locking block form an up-down locking and fixing device which is arranged at the front end and the rear end of the base of the windshield wiper connecting base.

By adopting the structure, 4 pairs of clamping blocks and locking blocks are respectively added at the front end and the rear end of the two side walls of the lower joint cover, the 4 pairs of clamping blocks and locking blocks are respectively positioned at the front end and the rear end of the adjacent side edge of the base, so that the front end and the rear end of the base at least form 4 pairs of upper and lower locking fixing devices, and the stability of connection between the lower joint cover and the windshield wiper connecting base is effectively improved.

Furthermore, the fixture blocks and the locking blocks in the same up-down pair locking device are positioned on the same vertical line in the vertical direction.

By adopting the structure, the clamping block and the locking block are positioned on the same vertical line in the vertical direction, so that when the clamping block and the locking block are respectively clamped on the top surface and the bottom surface of the base up and down, the clamping block and the locking block form up-and-down locking fixation of a point position along the vertical direction aiming at the base, compared with the situation that the clamping block and the locking block are arranged in a staggered mode along the vertical direction, the lower cover of the joint can be stably locked on the base of the windshield wiper connecting base, and the connection stability of the clamping block and the locking block is further ensured.

Furthermore, one embodiment of the limiting device is two limiting blocking edges arranged on the inner side of each side wall of the joint lower cover, and the limiting blocking edges are abutted against and limited by two sides of the connecting plate.

On the basis that the lower joint cover is provided with a limiting blocking edge, the outer side of the connecting plate of the windshield wiper connecting base is also at least provided with a limiting groove from top to bottom, and the inner side of the side wall of the lower joint cover is provided with a limiting convex rib clamped with the limiting groove.

Furthermore, one embodiment of the limiting device is that the outer side of the connecting plate of the windshield wiper connecting base is only provided with a limiting groove from top to bottom and a limiting convex rib which is clamped with the limiting groove and is arranged on the inner side of the side wall of the joint lower cover.

The limiting device which is additionally arranged and used for limiting the displacement of the lower cover of the joint relative to the windshield wiper connecting base along the length direction further increases the connection stability of the lower cover and the windshield wiper connecting base.

Further, the base be located the top surface and with the side adjacent position be equipped with two draw-in grooves, draw-in groove and fixture block looks joint, the base be located the bottom surface and still be equipped with two locking grooves respectively with the side adjacent position, draw-in groove and locking groove have the depressed part, it is equipped with the face of keeping out in respective depressed part and towards one side of connecting plate, the fixture block card arrange the draw-in groove in to can support with the face of keeping out in the draw-in groove and support to lean on spacingly, the locking piece card arrange the locking inslot in to can support with the face of keeping out in the locking groove and support to lean on spacingly. Through add draw-in groove and locking groove on the base for in fixture block and locking piece block respectively card arrange corresponding draw-in groove and locking groove, increase again and connect the spacing of base along length direction with the windshield wiper, and through the face of keeping off that is equipped with in draw-in groove and the locking groove, further reduce the rocking of fixture block and locking piece in the draw-in groove and the locking groove that correspond the setting, further promote the windshield wiper and connect the stability that the base is connected with connecting the lower cover.

Further, the top surface to the side of base have an inclined plane, inclined plane top-down width gradually widen, the draw-in groove set up on the inclined plane, the inclined plane play the guide effect to the locking piece that the joint lower cover was covered for the locking piece more conveniently moves to locking in the groove downwards

Furthermore, the bottom end of the locking block is provided with a guide inclined plane which is wide at the top and narrow at the bottom, and the guide inclined plane enables the locking block to slide to the bottom surface from the top surface of the fixed groove more conveniently, so that the locking block is clamped with the locking groove.

Furthermore, the length of the clamping block is matched with that of the clamping groove and/or the length of the locking block is matched with that of the locking groove, and at least the length of one of the clamping block or the locking block is required to be matched with that of the clamping groove or the locking groove, so that the displacement of the lower cover of the joint relative to the windshield wiper connecting base in the length direction is further limited.

Adopt above-mentioned structure, windshield wiper connect the base can be made by the plastics material, through the integrative injection moulding of injection moulding with base and connecting seat of injection moulding process, this base is the logical groove that extends along its length direction, the top surface that should lead to the groove has the blind end, its bottom surface has the open end that extends along length direction, the cavity in this logical groove, it is used for directly or indirectly wearing to put and fix the windshield wiper support. Because the base is connected to this windshield wiper material is plastics, its material cost is low, and can adopt integrative injection moulding, and production efficiency is high, greatly reduced its manufacturing cost.

By adopting the structure, the windshield wiper connecting base can be made of metal materials, if the base and the connecting seat are integrally formed by a metal stamping process, the base is a sheet-shaped body, the middle part of the base is slightly arched, and the front end and the rear end of the base are respectively provided with a pair of clamping claws for riveting the windshield wiper support along the width direction of the base.

Drawings

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

fig. 2 is a schematic view of a wiper connecting base and a joint lower cover according to a first embodiment of the present invention;

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

fig. 4 is a schematic bottom view of a wiper connecting base according to a first embodiment of the present invention;

fig. 5 is a schematic view of a wiper connecting base according to a first embodiment of the present invention;

fig. 6 is a schematic view of a joint lower cover according to a first embodiment of the present invention;

fig. 7 is a schematic view of a joint lower cover according to a first embodiment of the present invention;

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

fig. 9 is a sectional view showing an installation state of a wiper connecting base and a joint lower cover according to a first embodiment of the present invention;

fig. 10 is a schematic view of a wiper connecting base and a joint lower cover according to a second embodiment of the present invention;

fig. 11 is a schematic view of a wiper connecting base and a joint lower cover according to a third embodiment of the present invention;

fig. 12 is a schematic view of a wiper connecting base and a joint lower cover according to a third embodiment of the present invention;

fig. 13 is a schematic view of a wiper connecting base and a joint lower cover according to a fourth embodiment of the present invention.

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.

The utility model discloses a windshield wiper connects joint lower cover of base and looks adaptation, windshield wiper connect the base and connect the lower cover as shown in figure 2 to figure 13, it discloses the windshield wiper of four kinds of different embodiments and connects the base and connect the lower cover, windshield wiper connect the base can be the plastics material, through integrative injection moulding, also can adopt the metal material, make through processes such as metal punching press, specifically as follows:

example 1

As shown in fig. 2 to 5, which disclose the first embodiment of the present invention, in this embodiment, the wiper connecting base 1a is formed by integrally injection molding a base 11a and a connecting seat 12a, the base 11a is a through groove 11a surrounded by a top surface 111a, two side edges 112a and a bottom surface 113a, the base (through groove) 11a is used for penetrating and fixing a supporting and carrying component (not shown), the specific structure of the supporting and carrying component can be referred to patent CN108657127B, the upper portion of the supporting and carrying component can be used for penetrating a wiper support (elastic sheet), and the lower portion thereof is used for penetrating a wiper strip, thereby indirectly fixing the wiper support; it should be noted that the base can also be designed to be directly used for fixing the elastic sheet body, that is, the wiper support is two elastic sheet bodies arranged at intervals along the width direction, and the two sides of the wiper rubber strip form insertion grooves to be directly inserted into the gaps (not shown) formed by the two elastic sheet bodies, in fact, the connection structure between the base and the wiper support is not limited to the embodiments described herein, and the structure for connecting and fixing the base and the wiper support is an equivalent technical means that can be imagined by those skilled in the art without creative thinking; the connecting seat 12a of the wiper connecting base 1a is disposed in the middle of the top surface 111a of the base 11a, in this embodiment, the connecting seat 12a includes two connecting plates 121a disposed in parallel along the length direction of the base 11a and a pivot shaft 122a, the pivot shaft 122a is disposed in the middle of the two connecting plates 121a and is used for hinging a wiper joint (not shown) adapted to the wiper arm, and the wiper joint is connected to the wiper arm, so that the wiper arm is swingably disposed on the wiper connecting base 1a and connected to the wiper support.

The wiper is connected to the top surface 111a of the base (through groove) 11a of the base 1a and the position adjacent to the side 112a is respectively provided with two clamping grooves 15a, the clamping grooves 15a are respectively located at the front and rear ends of the top surface 111a of the base 11a, the base 11a is further provided with two locking grooves 16a at the position located at the bottom surface 113a and adjacent to the side 112a, the locking grooves 16a are respectively located at the front and rear ends of the base 11a, in this embodiment, the clamping grooves 15a and the locking grooves 16a are provided with recessed portions, and the respective recessed portions and the side facing the connecting plate 121a are provided with abutting surfaces 151 and 161, the abutting surfaces 151 and 161 are used for abutting against the clamping block 22 and the locking block 23, the clamping grooves 15a and the locking grooves 16a can be as shown in fig. 3, the clamping grooves 15a and the locking grooves 16a are closed recessed portions, and the side facing the connecting plate 121a is provided with the abutting surfaces 151 and the side facing the connecting plate 151 a, 161, the said dent is used for clamping the fixture block 22 and locking the fixture block 23; it should be noted that, the card slot 15b and the locking slot may also be a recessed portion having an open end on one side and a closed end (the side facing the connecting plate 121 a) on the other side, and a stop surface 151 is formed at the closed end, as shown in fig. 5, in this embodiment, it is preferable that the card slot 15a and the locking slot 16a are stressed on the same vertical line in the vertical direction rather than being staggered, that is, the card slot 15a and the locking slot 16a are on the same vertical line.

As shown in fig. 3, the wiper connecting base 1a has an inclined surface 17 from the top surface 111a to the side 112a of the base 11a, the distance between the inclined surfaces 17 is gradually wider from top to bottom, the engaging groove 15a is formed on the inclined surface 17, and the inclined surface 17 is formed to guide the downward sliding of the lower contact cover 2 a.

As shown in fig. 2, fig. 6 and fig. 7, a joint lower cover 2a adapted to the wiper connecting base 1a of the first embodiment is further disclosed, the joint lower cover 2a at least includes two side walls 21 and a plurality of connecting members disposed between the two side walls 21, a hollow portion hollowed out vertically is defined by the two side walls 21 and the connecting members, the hollow portion is used for accommodating the wiper connecting base 1a, the inner walls of the two side walls 21 of the joint lower cover 2a are respectively provided with four locking blocks 22 and four locking blocks 23 engaged with the locking grooves 15a and the locking grooves 16a from top to bottom, in this embodiment, the number of the locking blocks 22 and the four locking blocks 23 is four, and two of the locking blocks 22 and two of the locking blocks 23 are respectively corresponding to the front and rear ends of the base 11a of the wiper connecting base 1a along the length direction, although the number of the locking blocks 22 and the locking blocks 23 is not necessarily four, more clamping blocks 22 and locking blocks 23 can be added according to the actual design requirement. As shown in fig. 5, when the slot 15b and/or the locking slot 16b has an open end, when the latch 22 is snapped into the slot 15b, it can abut against the resisting surface 151, and when the locking block 23 is clamped into the locking groove, it can abut against the resisting surface 161, it should be noted that, in this embodiment, when the locking slot 15a and the locking slot 16a are closed recesses, the length of the locking block 23 is matched with the length of the locking slot 16a, however, the design is not limited to the locking block 23, and the length of the latch 22 may be adapted to the length of the slot 15a, or the lengths of the latch 22 and the locking block 23 may be adapted to the lengths of the slot 15a and the locking groove 16a, respectively, but if so, the requirement on the machining and manufacturing precision is very high, and generally, only one type of the special-shaped parts needs to be matched with each other in a limiting manner along the length direction. More preferably, the bottom end of the locking block 23 further has a guiding inclined plane 231 with a wide top and a narrow bottom, the guiding inclined plane 231 makes the locking block 23 more conveniently slide from the top surface 111a to the bottom surface 113a of the base 11a, so that the locking block 23 is clamped with the locking groove 16a, the inner side of the side wall 21 further has two limiting stop edges 26, and the limiting stop edges 26 are disposed on the outer sides of the two connecting plates 121a on the wiper connecting base 1a after being installed.

When the lower joint cover 2a and the wiper connecting base 1a are nested and connected with each other, the limiting stop edges 26 of the lower joint cover 2a are abutted against the two sides of the connecting plate 121a of the wiper connecting base 1a and slide downwards, the locking block 23 slides downwards along the inclined surface 17 on the wiper connecting base 1a until the locking block 23 enters the locking groove 16a, as shown in fig. 8 and 9, at this time, the clamping blocks 22 and the clamping grooves 15a are clamped with each other, the locking block 23 and the locking groove 16a are clamped with each other, the limiting stop edges 26 of the lower joint cover 2a and the two sides of the connecting plate 121a of the wiper connecting base 1a are abutted and matched with each other, so as to limit the front and back movement of the lower joint cover 2a relative to the wiper connecting base 1a along the length direction, and simultaneously, the clamping blocks 22 and the locking blocks 23 on the lower joint cover 2a are respectively abutted against and matched with the clamping grooves 15a and the locking groove 16a on the wiper connecting base 1a, further ensuring that the lower joint cover 2a and the wiper connecting base 1a do not move back and forth and up and down relatively; the fixture block 22 and the locking block 23 are vertically positioned on the same vertical line, so that when the fixture block 22 and the locking block 23 are vertically clamped in the clamping groove 15a and the locking groove 16a of the base 11a respectively, the fixture block 22 and the locking block 23 are vertically locked and fixed with respect to the base 11a, and the front end and the rear end of the connector lower cover 2a on the base 11a form at least 4 point positions, in an ideal state, the fixture block 22 and the locking block 23 are in transition fit with the clamping groove 15a and the locking groove 16a respectively, but due to the limitation of machining precision and convenience in assembly or long-time use, a clearance fit may be formed between the fixture block 22 and the clamping groove 15a and/or between the locking block 23 and the locking groove 16a, so that slight shaking is generated, but the shaking clearance is limited to the clearance between the fixture block 22 and the locking block 23, the clearance distance is shortest, the shaking radian is minimum, and the slight shaking caused by the connector lower cover 2a and the wiper connecting base 1a can be reduced to the maximum extent The scraping quality of the windshield wiper is improved.

Example 2

As shown in fig. 10, the present invention discloses a second wiper connecting base 1b and a joint lower cover 2b, the second embodiment is substantially the same as the embodiment 1, except that a top-down limiting groove 18 is additionally provided on the outer side of the connecting plate 121b of the wiper connecting base 1b, a limiting rib 25 for engaging with the limiting groove 18 is provided on the inner side of the side wall 21 of the joint lower cover 2b, when the joint lower cover 2b is mounted on the wiper connecting base 1b, the limiting rib 25 of the joint lower cover 2b is opposite to the limiting groove 18 on the connecting plate 121b of the wiper connecting base 1b, then the joint lower cover 2b is slid downward until the locking block 23 on the joint lower cover 2b is engaged with the locking groove 16a, the locking block 22 is engaged with the locking groove 15a, thereby locking the joint lower cover 2b and the wiper connecting base 1a together, due to the addition of the limiting groove 18, the movement of the wiper connecting base 1b and the joint lower cover 2b in the front-rear direction is further limited, so that the connection of the wiper connecting base 1b and the joint lower cover 2b is more stable.

Example 3

As shown in fig. 11 and 12, the present invention discloses a third wiper connecting base 1c and a joint lower cover 2c, the wiper connecting base 1c in this embodiment is made of metal material by metal stamping process, the base 11c on the wiper connecting base 1c is a bottom plate, the bottom plate 11c has four claws 19 at the front and rear ends along the width direction thereof, the claws 19 are used for riveting a wiper support (elastic sheet body), and the bottom plate 11c is a connecting plate 121c arranged in parallel along the length direction thereof; the lower joint cover 2c comprises two side walls 21, two limit retaining edges 26 are arranged on each side of the side walls 21, the limit retaining edges 26 are arranged on the outer sides of two connecting plates 121c on the wiper connecting base 1c when being installed, a clamping block 22 and a locking block 23 are further arranged below the limit retaining edges 26, the clamping block 22 and the locking block 23 are opposite at intervals along the vertical direction, a connecting block 28 is further arranged between the clamping block 22 and the locking block 23, the connecting block 28 is mainly used for adjusting the matching gap between the lower joint cover 2c and the bottom plate 11c along the width direction, an up-and-down pair of locking and fixing devices are formed between the clamping block 22 and the locking block 23, meanwhile, a plurality of reinforcing ribs 27 are further arranged on the side walls 21, the reinforcing ribs 27 are not only used for reinforcing the strength of the side walls 21, but also can be used as support ribs for abutting against the connecting plates 121c of the lower joint cover 2c and the wiper connecting base 1c, when the wiper connecting base 1c and the joint lower cover 2c are fixed to each other, the joint block 28 and the plurality of ribs 27 of the side wall 21 of the joint lower cover 2c are respectively in abutting contact with the side edge of the bottom plate 11c of the corresponding wiper connecting base 1c and the outer end face of the connecting plate 121c, so that the joint lower cover 2c is ensured not to shake in the width direction relative to the wiper connecting base 1 c. In this embodiment, when the wiper connecting base 1c and the joint lower cover 2c are installed, the limiting blocking edge 26 on the joint lower cover 2c is abutted against two sides of the connecting plate 121c of the wiper connecting base 1c, and then the joint lower cover 2c is slid downward until the locking block 23 slides from the top surface 111c to the bottom surface 113c of the bottom plate (base) 11c of the wiper connecting base 1c, at this time, four vertical pair locking and fixing devices formed by the locking block 22 and the locking block 23 are respectively located at the front end and the rear end of the bottom plate (base) 11c and in the area adjacent to the clamping jaw 19, so that the joint lower cover 2c cannot swing vertically relative to the wiper connecting base 1 c.

Example 4

As shown in fig. 13, the present invention discloses a fourth wiper connecting base 1d and a joint lower cover 2d, the structure of this embodiment is basically the same as that of embodiment 2, except that the inner side of the sidewall 21 of the joint lower cover 2d is different from that of embodiment 2, the inner side of the sidewall 21 of the joint lower cover 2d in this embodiment is only provided with a limiting rib 25 for engaging with the limiting groove 18 on the wiper connecting base 1d, when the joint lower cover 2d is mounted on the wiper connecting base 1d, the limiting rib 25 of the joint lower cover 2d is opposite to the limiting groove 18 on the connecting plate 121b of the wiper connecting base 1d, and then slides downward until the locking block 23 on the joint lower cover 2d engages with the locking groove 16a, and the locking block 22 engages with the locking groove 15 a.

To sum up, each embodiment actually reveals the utility model discloses the design: the utility model creatively provides that at least 4 pairs of upper and lower locking fixing devices consisting of fixture blocks and locking blocks are respectively added at the front and rear ends of two side edges of a base of a lower joint cover relative to a windshield wiper connecting base, the 4 pairs of upper and lower locking fixing devices are abutted against and limited with the top surface and the bottom surface of the base of the windshield wiper connecting base, thereby greatly reducing the relative up-and-down swinging phenomenon between the lower joint cover and the windshield wiper connecting base and ensuring that the lower joint cover can be more stably fixedly connected on the windshield wiper connecting base; furthermore, a clamping groove and a locking groove are additionally arranged on a base of the windshield wiper connecting base, the displacement limit of the joint lower cover relative to the front end and the rear end of the windshield wiper connecting base is increased through a blocking surface formed by the clamping groove and the locking groove, and the connection stability of the joint lower cover and the windshield wiper connecting base is further increased.

In the description of the present invention, it is to be understood that the terms "length", "width", "thickness", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

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 (15)

1. A windshield wiper connecting base and a joint lower cover are provided, the windshield wiper connecting base comprises a base, the base is used for fixedly arranging a windshield wiper support, the middle part of the top surface of the base is provided with a connecting seat, the connecting seat is used for being directly or indirectly connected with a wiping arm, and the connecting seat at least comprises two connecting plates which are arranged in parallel along the length direction of the base;

the lower joint cover at least comprises two side walls and a plurality of connecting pieces arranged between the two side walls, a hollow part which is vertically hollowed out is formed by the two side walls and the connecting pieces in a surrounding manner, and the hollow part is used for accommodating the windshield wiper connecting base;

the side wall of the lower joint cover and/or a limiting device is arranged between the side wall and the connecting plate, and the limiting device is used for limiting the displacement of the windshield wiper connecting base relative to the lower joint cover in the length direction;

the novel windshield wiper is characterized in that two clamping blocks and locking blocks are respectively arranged on the inner side of the side wall of each joint lower cover from top to bottom at least at two ends of a base, which are opposite to the windshield wiper connecting base, in the length direction, the clamping blocks abut against the top surface of the base, the locking blocks abut against the bottom surface of the base, and each clamping block and the locking block form an up-down locking and fixing device which is arranged at the front end and the rear end of the base, which is opposite to the windshield wiper connecting base.

2. The wiper connecting base and the joint lower cover according to claim 1, wherein the latch block and the locking block of the same pair of the upper and lower locking devices are located on the same vertical line in the vertical direction.

3. The wiper connecting base and the joint lower cover as set forth in claim 1, wherein the limiting means are two limiting ledges on the inner side of each side wall of the joint lower cover, the limiting ledges being abutted against the both sides of the connecting plate for limiting.

4. The wiper connecting base and the joint lower cover as claimed in claim 3, wherein the outer side of the connecting plate of the wiper connecting base is provided with at least one limiting groove from top to bottom, and the inner side of the sidewall of the joint lower cover is provided with a limiting rib engaged with the limiting groove.

5. The wiper connecting base and the joint lower cover as set forth in claim 1, wherein the locking piece has a guide slope at a bottom end thereof, and a width of a longitudinal section of the guide slope is tapered from top to bottom.

6. The wiper connecting base and the joint lower cover according to claim 1, wherein the limiting means is a limiting groove from top to bottom formed on the outer side of the connecting plate of the wiper connecting base and a limiting rib formed on the inner side of the side wall of the joint lower cover and adapted to be engaged with the limiting groove.

7. The wiper connecting base and the joint lower cover according to any one of claims 1 to 6, wherein each of said bases has a number of notches corresponding to the number of the locking pieces at positions adjacent to the side edges and on the top surface, and each of said bases has a number of locking grooves corresponding to the number of the locking pieces at positions adjacent to the side edges and on the bottom surface, said notches and said locking grooves having recesses respectively formed with a stopper surface at a side of the respective recess facing the connecting plate, said locking pieces being engaged in the notches and being capable of being abutted against the stopper surfaces of the notches for limiting, and said locking pieces being engaged in the locking grooves and being capable of being abutted against the stopper surfaces of the locking grooves for limiting.

8. The wiper connecting base and the joint lower cover as set forth in claim 7, wherein the base has an inclined surface from a top surface to a side thereof, the inclined surface being gradually wider from top to bottom, the catching groove being provided on the inclined surface.

9. The wiper connecting base and the joint lower cover according to claim 7, wherein the locking groove and the locking groove are closed recesses, and the locking block is adapted to the length of the locking groove and/or the locking block is adapted to the length of the locking groove.

10. The wiper connecting base and the joint lower cover according to any one of claims 1 to 6, wherein the wiper connecting base is formed by injection molding in one piece, the base is a through groove extending along the length direction thereof, the top surface of the through groove has a closed end, the bottom surface thereof has an open end extending along the length direction, and the inner cavity of the through groove is hollow and is used for directly or indirectly penetrating and fixing the wiper support.

11. The wiper connecting base and the joint lower cover according to claim 7, wherein the wiper connecting base is formed by injection molding, the base is a through groove extending along the length direction thereof, the top surface of the through groove has a closed end, the bottom surface of the through groove has an open end extending along the length direction, and the through groove has a hollow inner cavity for directly or indirectly penetrating and fixing the wiper support.

12. The wiper connecting base and the joint lower cover according to claim 8, wherein the wiper connecting base is formed by injection molding, the base is a through groove extending along a length direction thereof, a top surface of the through groove has a closed end, a bottom surface of the through groove has an open end extending along the length direction, and an inner cavity of the through groove is hollow and is used for directly or indirectly penetrating and fixing the wiper support.

13. The wiper connecting base and the joint lower cover according to claim 9, wherein the wiper connecting base is formed by injection molding, the base is a through groove extending along a length direction thereof, a top surface of the through groove has a closed end, a bottom surface thereof has an open end extending along the length direction, and an inner cavity of the through groove is hollow and is used for directly or indirectly penetrating and fixing the wiper support.

14. The wiper connecting base and the joint lower cover as set forth in any one of claims 1 to 6, wherein the wiper connecting base is made of metal, the base is a plate-like body having a slightly arched middle portion, and front and rear ends each having a pair of claws for riveting the wiper holder in a width direction thereof.

15. The wiper connecting base and the joint lower cover as set forth in claim 7, wherein the wiper connecting base is made of metal, the base is a plate-like body, the middle portion thereof is slightly arched, and the front and rear ends thereof are respectively provided with a pair of claws for riveting the wiper support in the width direction thereof.

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