CN113561942A

CN113561942A - Adapter and windshield wiper

Info

Publication number: CN113561942A
Application number: CN202110643474.8A
Authority: CN
Inventors: 王书屋
Original assignee: Xiamen Fuke Car Accessories Co Ltd
Current assignee: Xiamen Fuke Car Accessories Co Ltd
Priority date: 2020-11-09
Filing date: 2021-06-09
Publication date: 2021-10-29
Anticipated expiration: 2041-06-09
Also published as: CN113561942B

Abstract

The invention discloses an adapter, which at least comprises two side walls A and a top wall B, wherein the adapter is embedded in a connecting part of a driving arm, the side walls A and the top wall B are used as bearing and supporting surfaces of the connecting part of the driving arm, and the front end of the adapter is provided with a first limiting part for limiting the forward displacement of the connecting part of the driving arm relative to the adapter; the front ends of the two side walls A are provided with a second limiting part which limits the upward displacement of a limiting clamping groove of the connecting part of the driving arm relative to the adapter; be equipped with a lug that does not have elastic deformation on adapter roof B, the lug cover is arranged in the spacing through-hole of actuating arm connecting portion, and the length X1 of lug is less than spacing through-hole length X2, and the lateral wall A of adapter forms spacing slot at the removal orbit position that the location bump for actuating arm connecting portion corresponds with it at least, this spacing slot has the position of letting that supplies the location bump of actuating arm connecting portion to displace downwards and is used for the locking portion at vertical direction locking location bump, the locking portion is located the rear end of letting the position.

Description

Adapter and windshield wiper

Technical Field

The invention relates to the field of wipers, in particular to an adapter for connecting a wiper assembly with a driving arm and a wiper provided with the adapter.

Background

Referring to the CN103101514A patent document, as shown in fig. 1, there is disclosed a wiper driving arm 2 'having a driving arm connecting portion 4', an upper cover wall 4a and a pair of side cover walls 4b, each side cover wall 4b having a joining recess 4c at a front end thereof and a protruding portion 4d at a rear end thereof; the top end of the upper cover wall 4a has a position-limiting hole 4e, a clamp 17 '(consistent with the function of the adaptor defined in the present invention) has a pair of side walls 17a and an upper wall 17b, each side wall 17a has an engaging protrusion 17f on the outer side surface, and the top of the upper wall 17b has an elastic protrusion 17K, when the driving arm connecting portion 4' is connected to the clamp 17 ', the engaging recess 4c, the protrusion 4d and the position-limiting hole 4e of the driving arm connecting portion 4' are in position-limiting engagement with the engaging protrusion 17f provided corresponding to the clamp 17 ', the lower end surface 17i of each side wall 17a and the elastic protrusion 17K, respectively, in such a manner that, since the elastic protrusion 17K has elasticity and the clamp 17' is generally made of an injection molding, after a period of use, due to the deterioration of plastic, and/or when the driving arm 2 'and the clamp 17' are moved in the reciprocating circumferential direction, the drive arm connecting portion 4 'applies an axial component force to the front end portion of the elastic projection 17K toward the drive arm connecting portion 4', and the elastic projection 17K may be stuck, resulting in separation of the wiper drive arm 2 'and the clip 17'.

The latter industry further discloses an adaptor (consistent with the function of the adaptor defined by the present invention) for adapting the aforementioned wiper drive arm 2 ', see the CN109070845A patent document, fig. 2-1 (fig. 50 of the specification), according to the disclosed embodiment thereof, the top wall of the adaptor 15124 presents an inelastic protrusion 15264, the outside surface of the side wall of which has a vertical slot 15266, and each vertical slot 15266 has a vertical channel extending vertically downward from the platform 15174 to a vertical base 15276 defined in each side wall 15176, the vertical base 15276 being arranged to abut the protrusion 4d of the wiper drive arm connection 4 ' when the adaptor 15124 is secured to the wiper drive arm 2 ' so as to facilitate vertical retention at the second end 15162 of the body 15158 of the adaptor 15124; an openable/closable receiving cap 15258 is provided at the front end of the body of the adaptor 15124.

When the assembly is carried out, the receiving cap 15258 of the adaptor 15124 needs to be opened, the protruding portions 4d on the two side walls of the wiper driving arm connecting portion 4 ' slide downwards along the vertical groove 15266 until the protruding portions 4d are clamped at the vertical base 15276, and at this time, the vertical limiting holes 4e of the wiper driving arm connecting portion 4 ' are just embedded into the protruding portions 15264 of the adaptor, the protruding portions 15264 and the hole surfaces 210 of the limiting holes 4e are in limiting fit with each other, so that the wiper driving arm connecting portion 4 ' is not displaced backwards relative to the adaptor 15124, then the receiving cap 15258 is closed, and the assembly between the wiper driving arm connecting portion 4 ' and the adaptor 15124 is realized, but by adopting the structure, the requirement on the manufacturing accuracy of the adaptor 15124 is high, namely, the relative position between the vertical groove 66 and the protruding portions 15264 needs to be accurate, otherwise, when the wiper driving arm connecting portion 4 ' is assembled with the adaptor 15124, when the protruding portion 4d of the wiper driving arm connecting portion 4 ' slides into the vertical groove 15266, the hole surface 210 of the limiting hole 4e of the wiper driving arm connecting portion abuts against and is limited by the protruding portion 15264 of the adaptor, and once there is a machining error of 0.2-0.5mm, the wiper driving arm connecting portion 4 ' cannot be assembled with the adaptor 15124, and meanwhile, due to the limited space of the vertical groove 15266, even if a limiting bump is additionally arranged in the vertical groove 15266 (the subsequent embodiment of the patent document teaches a technology for arranging the limiting bump), the protruding portion 4d of the wiper driving arm connecting portion 4 ' is limited on the vertical base 15276, but because the contact area between the protruding portion 4d of the wiper driving arm connecting portion 4 ' and the limiting bump in the vertical groove 66 is limited, the two are easy to separate from each other, and stable connection between the wiper driving arm connecting portion 4 ' and the adaptor cannot be realized.

Similarly, in the CN109070845A patent document, fig. 2-2 (original fig. 74) also discloses that the L-shaped groove 19166 is L-shaped, the horizontal section of the L-shaped groove 19166 faces the side wall hook 19130, and when the wiper drive arm connecting portion 4 'and the adaptor 19124 are assembled, the protruding portion 4d of the wiper drive arm connecting portion 4' slides into the L-shaped groove 19166 from top to bottom and slides towards the horizontal section of the L-shaped groove 19166 until the protruding portion 4d abuts against the front end of the horizontal section of the L-shaped groove 19166 or the rear end face of the limit through hole 4e abuts against the protruding portion 19320 of the adaptor 19124, but the above-mentioned limit structures all prevent the wiper drive arm connecting portion 4 'from displacing forward relative to the adaptor 19124, and there is no limit structure to prevent the wiper drive arm connecting portion 4' from displacing backward relative to the adaptor 19124, so this technical solution is not practical.

In view of the above, the present inventors have made extensive studies on the above-mentioned drawbacks of the prior art, and have made this invention.

Disclosure of Invention

A first object of the present invention is to provide an adapter which is simple to process, low in manufacturing cost, and stably connected to a driving arm connecting portion, and which prevents the wiper driving arm connecting portion from being displaced backward relative to the adapter, thereby ensuring driving safety.

A second object of the present invention is to provide a wiper blade including the aforementioned adapter.

In order to achieve the first object of the present invention, the present invention discloses an adapter as a connecting member between a wiper blade assembly and a driving arm; the front end of the driving arm is provided with a driving arm connecting part which is a U-shaped groove component, the top wall of the driving arm connecting part is at least provided with a limiting through hole, the front ends of the two side walls are respectively provided with a horizontally arranged limiting clamping groove, and the inner wall of at least one side wall is provided with a positioning convex point;

the adapter comprises two side walls A and a top wall B, the two side walls A are provided with pivot connection parts, the adapter can swing up and down along the length direction of the adapter by taking the pivot connection parts as rotation fulcrums through the pivot connection parts, the adapter is embedded in the driving arm connection parts, the side walls A and the top wall B are used as bearing support surfaces of the driving arm connection parts, the front end of the adapter is provided with a first limiting part, and the driving arm connection parts are limited by the first limiting part to move forwards relative to the adapter; the front ends of the two side walls A of the adapter are provided with second limiting parts, and the second limiting parts are mutually clamped with the limiting clamping grooves of the driving arm connecting parts, so that the limiting clamping grooves of the driving arm connecting parts are limited from moving upwards relative to the adapter; the adapter top wall B is provided with a bump without elastic deformation, the bump is sleeved in a limiting through hole of the driving arm connecting part, the length X1 of the bump is less than the length X2 of the limiting through hole of the driving arm connecting part, the side wall A of the adapter at least forms a limiting groove at a position corresponding to a positioning convex point of the driving arm connecting part, the limiting groove is provided with a position yielding part for downward displacement of the positioning convex point of the driving arm connecting part and a locking part for locking the positioning convex point of the driving arm connecting part in the vertical direction, and the locking part is positioned at the rear end of the position yielding part.

Further, spacing slot is the L type, and it lets the position portion constitute by vertical section, and its locking portion comprises the horizontal extension section that is located vertical section bottom and extends to the rear end.

By adopting the structure, the lug which does not have elastic deformation on the adapter is sleeved in the limit through hole of the connecting part of the driving arm, so that the adapter is stably connected with the connecting part of the driving arm; meanwhile, when the wiper is installed, the positioning salient point on the side wall of the connecting part of the driving arm of the wiper slides vertically downwards along the abdication part of the limiting groove until the lug is embedded in the limiting through hole of the connecting part of the driving arm; and then the positioning salient point horizontally moves backwards along the locking part of the limiting groove until the lug is in limiting fit with the front end wall of the limiting through hole, and the driving arm connecting part is limited to move upwards and backwards relative to the adapter. The abdication part of the limit groove has enough width, which is convenient for the positioning salient point of the driving arm connecting part to slide in and be locked on the locking part of the limit groove, the L-shaped limit groove is adopted, the abdication part has enough width, and an inverted L-shaped resisting part is also formed at the rear end of the horizontal extension section, even if a processing error occurs at the relative position between the positioning salient point of the driving arm connecting part and the limit through hole or between the adapter convex block and the limit groove, when the front end wall of the limit through hole can not be mutually propped against and matched with the convex block, the positioning convex point of the driving arm connecting part and the horizontal extension section can be mutually propped against and matched with each other, the backward displacement of the driving arm connecting part relative to the adapter is limited, thereby realizing the adaptation of the driving arm with error in processing, reducing the requirement of the processing precision of the adapter, and reducing the processing difficulty of the adapter, resulting in lower final manufacturing costs.

Furthermore, the limiting grooves are symmetrically arranged on two side walls of the adapter. So set up for when other structures of adapter are 18O rotational symmetry along its vertical direction, its firm installation that can adapt left rudder vehicle and right rudder vehicle wiper arm.

Further, when the bump is sleeved in the limit through hole of the driving arm connecting part, the longest distance X4 from the inner wall of the front end of the limit through hole to the front end of the outer wall of the bump is less than or equal to the length X3 of the extension section. So set up, because the lug is face contact with spacing through-hole front end inner wall, and the point contact between the location bump of non-actuating arm connecting portion and the spacing slot horizontal extension section, the stability that the former is connected is better.

Further, the side wall A of the adapter is provided with a first positioning reference part and a second positioning reference part which are protruded outwards from the front to the back at intervals along the length direction, a gap formed between the first positioning reference part and the second positioning reference part of the side wall A forms a limiting groove, and the first positioning reference part and the second positioning reference part can be arranged at the outer end of the side wall A in a solid and integral forming mode or in an integral forming mode through a hollow-out structure.

Furthermore, the outer side end faces of the first positioning reference part and the second positioning reference part are respectively provided with a first positioning reference face and a second positioning reference face correspondingly, and the first positioning reference face and the second positioning reference face are in transition fit with the two inner side walls of the connecting part of the driving arm.

So set up, embedded in actuating arm connecting portion when the adapter, only need guarantee the machining precision of first location reference surface and second reference surface, just can realize the adaptation of adapter and actuating arm connecting portion, its processing degree of difficulty that has reduceed the adapter greatly, finally reduce the manufacturing cost of enterprise.

Further, the top wall B is provided with a hollow part at a position corresponding to the pivot connection part, and the hollow part provides a yielding space so that the adapter can swing up and down along the length direction of the adapter by taking the pivot connection part as a rotation fulcrum.

Further, the height of the bump is larger than the thickness of the top wall of the connecting part of the driving arm, the top of the bump extends to the front end of the adapter to form a bending part, the bending part and the top wall of the connecting part of the driving arm generate mutual interference, and upward displacement of the connecting part of the driving arm relative to the adapter along the vertical direction is further limited.

The adapter aims at one embodiment of the first limiting part and the second limiting part, the first limiting part at the front end of the adapter is a blocking edge, a step surface is formed between the blocking edge and the top wall B, and the blocking edge is abutted against the front end surface of the top wall of the connecting part of the driving arm so as to limit the forward displacement of the connecting part of the driving arm relative to the adapter; the side wall hook is arranged at the position, corresponding to the limiting clamping groove of the driving arm connecting part, of the two side walls A, the side wall hook serves as a second limiting part, a hook face is formed at the bottom end of the side wall hook, the side wall hook has certain elastic allowance, the hook face at the bottom end of the side wall hook is correspondingly clamped and connected with the lower incision edge of the limiting clamping groove of the driving arm connecting part in a limiting mode, and the limiting clamping groove of the driving arm connecting part is limited from moving along the vertical direction relative to the adapter.

Adopt above-mentioned structure, its lateral wall hook sets up in the rear end that keeps off the edge to satisfy the installation demand that the location bump of actuating arm connecting portion slided into spacing slot locking portion from preceding back, realize respectively through the fender edge and the lateral wall hook of adapter simultaneously that the restriction actuating arm connecting portion shifts forward and upwards displacement for the adapter.

The adapter aims at one embodiment of the first limiting part and the second limiting part, the front end of the adapter forms an end cap, the end cap is formed by at least a top surface, two side surfaces and a vertical connecting surface in a surrounding mode, one end, close to the adapter, of the top surface is connected with the top wall of the adapter through the vertical connecting surface, and therefore the vertical connecting surface forms the first limiting part of the adapter; this top surface is equipped with a side respectively downwards along the width direction both sides of adapter, the side sets up in the outside of adapter both sides wall A at interval, and the both sides face forms the extension section that is located vertical connection face rear end at the well lower part at least, and is equipped with first spacing heavy groove at extension section department at least, first spacing heavy groove have at least and be used for with the spacing first spacing bead of undercut edge mutual joint of the spacing draw-in groove of actuating arm connecting portion, first spacing bead is as the spacing portion of second.

Adopt above-mentioned structure, the both sides face of this end cap has certain elasticity surplus, and the vertical connection face by the end cap leans on with the preceding terminal surface counterbalance of actuating arm connecting portion to and the mutual joint of first spacing bead of end cap and the spacing draw-in groove of actuating arm connecting portion, restriction actuating arm connecting portion move forward and upwards displacement for the adapter.

The adapter is characterized in that a guide inclined plane is additionally arranged on the side surface of the end cap above the first limiting convex ridge, so that when the connecting part of the driving arm is abutted against and matched with the guide inclined planes on the two side surfaces of the end cap from top to bottom, the two side surfaces of the end cap are driven to bend inwards to give way.

According to one embodiment of the adapter, the second limiting part is characterized in that a second limiting sinking groove is formed in the side face of the end cap above the guide inclined plane, and the limiting sinking groove is located in front of the first limiting sinking groove. By adopting the structure, the second limit sink groove provides a yielding space so that the connecting part of the driving arm can be sleeved outside the adapter from top to bottom. During installation, the front end of the driving arm connecting portion is aligned with the second limit sunken groove or the positioning salient point of the driving arm connecting portion is aligned with the yielding portion of the limit groove and sleeved on the outer side of the adapter from top to bottom, and horizontally moves towards the rear end of the adapter, so that the lower incision edge of the limit clamping groove of the driving arm connecting portion is clamped and limited with the first limit convex edge of the first limit sunken groove.

Furthermore, the side face of the end cap is provided with a crack at the front end of the first limit sinking groove, and a pressing part is formed between the crack and the first limit sinking groove. Through addding pressing the splenium, pressing the splenium inwards as the finger, this spacing draw-in groove of actuating arm connecting portion breaks away from each other with the first spacing bead of adapter, is convenient for the actuating arm to break away from in the adapter.

Further, the rear end of the top wall of the adapter has a first slope with gradually rising height along the length direction from back to front. When the driving arm connecting part is sleeved on the outer side of the adapter from top to bottom, the inner top wall of the driving arm connecting part is preferentially contacted with the first inclined surface of the top wall B of the adapter, and then the adjacent area C of the first inclined surface and the horizontal end surface of the top wall B is used as a lever fulcrum, so that an installer can rotate the limiting clamping groove at the front end of the driving arm connecting part to the side wall hook at the front end of the two side walls of the adapter or the first limiting sunken groove at the two side surfaces of the end cap in a labor-saving manner, and the installation is facilitated.

Further, the side wall A of the adapter extends forwards to the inner wall of the top surface of the end cap, and an overlapping area is formed between the side wall A and the side surface of the end cap, so that the side wall A plays a role in bearing and supporting two side surfaces of the end cap.

On the premise that the side wall A has an overlapping area with the side face of the end cap, second inclined planes are respectively formed at the middle lower parts of the inner walls of the two side faces of the end cap, and the distance between the two second inclined planes is gradually widened from top to bottom. Through the setting on second inclined plane, make the interval top-down between end cap both sides face to the lateral wall A progressively increase, increase the angle scope that end cap both sides face bottom inwards bent the deformation to can make lateral wall A to the distance between the end cap both sides face reduce as far as possible, can conveniently increase lateral wall A's wall thickness like this, increase the structural strength of this adapter, also be convenient for simultaneously have more structural design in lateral wall A inside, say pivot connecting portion's setting, strengthening rib etc..

In order to achieve the second object of the present invention, the present invention further discloses a wiper including the adaptor of any one of the foregoing embodiments, wherein the adaptor is used for connecting the wiper assembly with the driving arm.

The windshield wiper made of the adapter can be stably installed with the connecting portion of the driving arm, and the manufacturing precision requirement of the adapter is reduced, so that the processing difficulty of the windshield wiper is reduced, and the manufacturing cost of an enterprise is finally reduced.

Drawings

The detailed description, given as a non-limiting example, better explains what the invention includes and can be implemented, and moreover, refers to the accompanying drawings, in which:

FIG. 1 is a schematic view of a drive arm connection and adapter disclosed in publication No. CN 103101514A;

FIGS. 2-1 and 2-2 are schematic views showing the assembly of the driving arm connecting portion and the adapter disclosed in publication No. CN 109070845A;

FIG. 3 is a schematic view of an adapter according to a first embodiment of the present invention;

FIG. 4 is a schematic view of an adapter according to a second embodiment of the present invention;

FIGS. 5 and 6 are schematic views of an adapter according to a third embodiment of the present invention;

FIGS. 7 and 8 are schematic views of an adapter according to a fourth embodiment of the present invention;

FIG. 9 is a cross-sectional view of an adapter of the present invention including an end cap;

FIG. 10 is an exploded view of the adapter and drive arm connection of the fourth embodiment of the present invention;

figure 11 is a combination view of an adapter and drive arm connection of a fourth embodiment of the present invention;

fig. 12 to 17 are schematic views illustrating the installation of the adaptor and the driving arm connecting portion according to the third embodiment of the present invention.

Description of the figures

Adapters

100a,100B, 100c, 100d, a side wall a, a top wall B, a pivot connection part 101, first limiting parts 1a, 1B, second limiting parts 2a, 2B, a side wall hook 2a, a hook surface 21a, a bump 3, a bending part 31;

a driving arm connecting part 200, a limiting through hole 201, a limiting clamping groove 202, a lower notch edge 2021 and a positioning salient point 203;

the limiting groove 4, the receding part 41, the locking part 42, the first positioning reference part 43, the first positioning reference surface 431, the second positioning reference part 44 and the second positioning reference surface 441;

the end cap 5, the top surface 51, the side surface 52, the extension 521, the first limit sunken groove 522, the first limit protruding rib 5221, the third limit protruding rib 5222, the second limit sunken groove 523, the second limit protruding rib 5231, the guide inclined surface 524, the crack 525, the pressing part 526, the second inclined surface 527 and the vertical connecting surface 53;

a hollow-out portion 6, a first slope 7, an adjacent area C, and an overlapping area 8.

Detailed Description

In the description of the present invention, it is to be understood that the terms "length," "upper," "lower," "front," "back," "top," "bottom," "inner," "outer," etc. indicate orientations or positional relationships based on those illustrated in the drawings, and are used merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention.

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.

The invention is described in detail below with reference to the figures and the specific embodiments.

Before describing the specific embodiment of the present invention, a brief description is first made on the driving arm connecting portion 200 adapted to the present invention, and the specific structure of the driving arm connecting portion 200 can refer to the patent document with the publication number CN103101514A in detail, and is not repeated in detail here, so that only some structural features of the driving arm connecting portion 200 are briefly described to facilitate the following description, and these structural features include: as shown in fig. 10 and 11, the driving arm connecting portion 200 is a U-shaped groove member, and has a stopper through hole 201 (corresponding to the stopper hole 4e of the patent document disclosed earlier) on the top wall thereof, a stopper groove 202 (corresponding to the engaging recess 4c of the patent document disclosed earlier) horizontally provided at the front end of each of the side walls, and a positioning protrusion 203 (corresponding to the protrusion 4d of the patent document disclosed earlier) provided on the inner wall of at least one of the side walls.

The definition of windshield wiper subassembly, ordinary skilled person in the art can know this windshield wiper subassembly has the windshield wiper support at least, the windshield wiper adhesive tape and set up be used for with adapter articulated pivotal connection seat in windshield wiper support middle part, this windshield wiper support can be for there being the bone support or the boneless support of constituteing by the shell fragment, perhaps by having the mixed support of bone support and shell fragment constitution jointly, the bottom of this windshield wiper support is direct or the indirect windshield wiper adhesive tape that has set firmly, the windshield wiper support is used for transmitting the actuating arm and applies the yawing force to the reciprocal swing of windshield wiper adhesive tape, and ensure that the windshield wiper adhesive tape hugs closely the windshield of vehicle.

First embodiment of the adapter:

as shown in fig. 3, the present invention discloses an adapter 100a as a connecting member between a wiper assembly and a driving arm, the adapter includes two side walls a and a top wall B, the two side walls a are provided with a pivot connection portion 101, by which the adapter 100a can swing up and down along its length direction with the pivot connection portion 101 as a rotation fulcrum, preferably, the top wall B is provided with a hollow portion 6 at a position opposite to the pivot connection portion 101, the hollow portion 6 provides a relief space for the pivot connection portion 101 to swing up and down along its length direction as a rotation fulcrum.

Two sets of positioning reference surfaces 431 and 441 are arranged at intervals along the length direction of the outer end surfaces of the two side walls a of the adapter 100a, the adapter 100a is embedded in the driving arm connecting part 200, and the two sets of positioning reference surfaces 431 and 441 are in contact positioning fit with the two inner side walls of the driving arm connecting part 200. At the moment, the adapter 100a and the driving arm connecting part 200 can be adapted only by ensuring the processing precision of the two groups of positioning reference surfaces, so that the processing difficulty of the adapter 100a is greatly reduced, and the manufacturing cost of an enterprise is finally reduced.

The side wall a of the adapter 100a is formed with a stopper groove 4 recessed inward at least at a position corresponding to a movement locus of the positioning protrusion 203 of the driving arm connecting portion 200, and the stopper groove 4 is provided between the two positioning reference surfaces 431 and 441 on the same side. The stopper groove 4 has a relief portion 41 for displacing the positioning protrusion 203 of the driving arm connecting portion 200 downward and a lock portion 42 for locking the positioning protrusion 203 of the driving arm connecting portion 200 in the vertical direction, and the lock portion 42 is located at the rear end of the relief portion 41. This spacing slot 4 is the L type, and it lets position portion 41 constitute by vertical section, and its locking portion 42 comprises the horizontal extension section that is located vertical section bottom and extends to the rear end.

Preferably, the stopper grooves 4 are symmetrically disposed on both side walls a of the adapter 100a so that they can be adapted to the firm installation of the wiper arms of the left-rudder vehicle and the right-rudder vehicle when the other structures of the adapter 100a are in 18O ° rotational symmetry in the vertical direction thereof.

Of course, if the side wall a of the adaptor 100a is thin, referring to fig. 4, the first positioning reference portion 43 and the second positioning reference portion 44 are protruded outward from the front to the back along the length direction, and the first positioning reference portion 43 and the second positioning reference portion 44 may be integrally formed in the outer end of the side wall a in a solid state or integrally formed in the outer end of the side wall a in a hollow structure, so as to increase the strength of the adaptor 100 a.

In this case, the stopper groove 4 is a gap formed between the first positioning reference portion 43 and the second positioning reference portion 44.

Similarly, the outer end surfaces of the first positioning reference portion 43 and the second positioning reference portion 44 are respectively provided with a first positioning reference surface 431 and a second positioning reference surface 441, and the technical effects of the first positioning reference surface 431 and the second positioning reference surface 441 are the same as those of the positioning reference surfaces, so that the description thereof is not repeated.

The front end of the adapter 100a is provided with a first limiting part 1a, and when the adapter 100a is embedded in the driving arm connecting part 200, the first limiting part 1a limits the forward displacement of the driving arm connecting part 200. In this embodiment, the first position-limiting portion 1a is a blocking edge, a step surface is formed between the blocking edge and the top wall B, and the blocking edge and the top wall front end surface of the driving arm connecting portion 200 abut against each other to limit the driving arm connecting portion 200 from moving forward relative to the adapter 100 a.

The second stoppers 2a are provided at the front ends of the two side walls a of the adaptor 100a, and the second stoppers 2a are engaged with the stopper grooves 202 of the driving arm connecting portion 200, thereby restricting the stopper grooves 202 of the driving arm connecting portion 200 from moving upward relative to the adaptor 100 a. In the present embodiment, the second position-limiting portion 2a is a side wall hook 2a provided at a position where the two side walls a are opposite to the position-limiting slot 202 of the driving arm connecting portion 200, and the specific structure of the side wall hook 2a can refer to the structure of the side wall hook disclosed in the patent document CN109070845A, the structure of the side wall hook 2a of the present embodiment is the same as that of the side wall hook, and the bottom end of the side wall hook 2a forms a hook surface 21a, when the adapter 100a is embedded in the driving arm connecting portion 200, the hook surface 21a at the bottom end of the side wall hook 2a and the undercut edge 2021 of the position-limiting slot 202 of the driving arm connecting portion 200 are mutually clamped and limited, so as to limit the displacement of the position-limiting slot 202 of the driving arm connecting portion 200 relative to the adapter 100a along the vertical direction.

The top wall B of the adapter 100a is provided with a bump 3 without elastic deformation, and when the adapter 100a is connected with the driving arm connecting portion 200, the bump 3 is sleeved in the limiting through hole 201 of the driving arm connecting portion 200 and abuts against the inner wall of the front end of the limiting through hole 201, so as to limit the backward displacement of the driving arm connecting portion 200 relative to the adapter 100 a. The length X1 of the projection 3 is less than the length X2 of the limit through hole 201 of the driving arm connecting part 200, and the projection 3 is ensured to have a displacement space in the length direction of the adapter 100a in the limit through hole 201 of the driving arm connecting part 200.

The height of the bump 3 is larger than the thickness of the top wall of the driving arm connecting portion 200, and the top of the bump 3 extends toward the front end of the adapter 100a to form a bent portion 31, and the bent portion 31 interferes with the top wall of the driving arm connecting portion 200 to further restrict the upward displacement of the driving arm connecting portion relative to the adapter in the vertical direction.

When the bump 3 is sleeved in the limiting through hole 201 of the driving arm connecting part 200, the longest distance X4 from the inner wall of the front end of the limiting through hole 201 to the front end of the outer wall of the bump 3 is less than or equal to the length X3 of the horizontal extension section of the locking part 42.

When the installation is carried out, firstly, the positioning salient point 203 of the driving arm connecting part 200 is aligned with the abdication part 41 of the limiting mechanism groove 4 on the adapter 100a, then the positioning salient point 203 moves downwards along the abdication part 41 of the limiting mechanism groove 4 until the lug 3 on the adapter 100a is sleeved in the limiting through hole of the driving arm connecting part 200, at this time, the front end of the top wall inner wall of the driving arm connecting part 200 is contacted with the blocking edge, the limiting clamping groove 202 of the driving arm connecting part 200 is contacted with the side wall hook 2a of the adapter 100a in an abutting mode, the side wall hook 2a is pressed inwards, then the driving arm connecting part 200 moves backwards, at this time, the positioning salient point 203 enters the locking part 42 of the limiting mechanism groove 4, then the positioning salient point 203 moves backwards along the locking part 42, the lug 3 moves forwards in the limiting through hole 201 until the lug 3 is contacted with the front end inner wall of the limiting through hole 201, the front end of the driving arm connecting part 200 is kept away from the blocking edge, then the front end of the driving arm connecting part 200 is pressed downwards until the side wall hook 2a rebounds out of the limiting clamping groove 202 of the driving arm connecting part 200, finally, the bottom end hook surface 21a of the side wall hook 2a is correspondingly clamped and limited with the lower notch edge 2021 of the limiting clamping groove 202 of the driving arm connecting part 200, the positioning salient point 203 is located in the locking part 42, the blocking edge is in abutting contact with the front end of the driving arm connecting part 200, the bump 3 is in contact with the front end of the limiting through hole 201, and the front-back and up-down displacement of the driving arm connecting part 200 relative to the adapter 100a is limited.

Second embodiment of the adapter:

as shown in fig. 4, the adaptor 100b of this embodiment is substantially the same as the first embodiment, and only the structure of the first limiting portion 1b and the second limiting portion 2b at the front end of the adaptor are different from those of the first embodiment, specifically, the front end of the adaptor 100b forms an end cap 5, the end cap 5 is at least surrounded by a top surface 51, two side surfaces 52 and a vertical connecting surface 53, one end of the top surface 51 adjacent to the adaptor 100b is connected to the top wall of the adaptor 100b by the vertical connecting surface 53, so that the vertical connecting surface 53 forms the first limiting portion 1b of the adaptor 100 b; the top surface 51 is provided with a side surface 52 respectively downward along both sides of the width direction of the adapter 100b, the side surfaces 52 are arranged at intervals outside both side walls a of the adapter 100b, and the side surfaces 52 have a certain elastic margin. The two side surfaces 52 at least form an extension section 521 at the middle lower part of the vertical connecting surface 53, and at least the extension section 521 is provided with a first limit sunken groove 522, the first limit sunken groove 522 at least has a first limit protruding rib 5221 for mutually clamping and limiting with a lower notch edge 2021 of a limit clamping groove 202 of the driving arm connecting part 200, and the first limit protruding rib 5221 serves as a second limit part 2 b.

The side surface 52 of the end cap 5 is provided with a slit 525 at the front end of the first limit sinking groove 522, and a pressing portion 526 is formed between the slit 525 and the first limit sinking groove 522. By adding the pressing portion 526, when a finger presses the pressing portion inward, the limit card slot 202 of the driving arm connecting portion 200 and the adapter 100b are separated from each other, so that the driving arm can be separated from the adapter.

The rear end of the top wall of the adapter is also provided with a first inclined surface 7 which is gradually raised from back to front along the length direction of the top wall, when the driving arm connecting part 200 is sleeved on the outer side of the adapter 100B from top to bottom, the inner top wall of the driving arm connecting part 200 is preferentially contacted with the top wall B of the adapter 100B, and then an adjacent area C of the first inclined surface 7 and the horizontal end surface of the top wall is used as a lever fulcrum, so that an installer can relatively labor-saving rotate the limiting clamping groove 202 at the front end of the driving arm connecting part 200 to the first limiting convex ribs 5221 at the front ends of the two side walls of the adapter 100B, and the installation is convenient.

As shown in fig. 9, the side wall a of the adapter 100b extends forward to the inner wall of the top surface 51 of the end cap 5, and the side wall a of the adapter 100b and the side surface 52 of the end cap 5 have an overlapping area 8 therebetween, so that the side wall a acts as a bearing support for the side surfaces 52 of the end cap 5. Preferably, as shown in fig. 6 and 7, the inner walls of the two side surfaces 52 of the end cap 5 respectively form a second inclined surface 527 at the middle and lower part, and the distance between the two second inclined surfaces 527 gradually increases from top to bottom. Through the setting of second inclined plane 527, make the interval top-down between 5 both sides face 52 of end cap to the lateral wall A increase gradually, increase the angle scope that 5 both sides face 52 bottoms of end cap inwards bend and warp to can make the distance between 5 both sides face 52 of lateral wall A to end cap reduce as far as possible, can conveniently increase lateral wall A's wall thickness like this, increase the structural strength of this adapter, also be convenient for simultaneously have more structural design in lateral wall A inside, say pivot connection portion's setting, strengthening rib etc..

In order to facilitate the installation of the driving arm connecting portion 200 with the adaptor 100B of this embodiment in a more labor-saving manner, the installation manner of the driving arm connecting portion 200 is slightly different from that of the first embodiment, namely, the driving arm connecting portion 200 is installed to be inclined downward relative to the adaptor 100B, the positioning salient point 203 passes through the receding portion 41 of the limiting groove 4, the protrusion 3 is sleeved in the limiting through hole 201, the inner top wall thereof is preferentially contacted with the first inclined surface 7 on the adaptor 100B, then the driving arm connecting portion 200 rotates with the adjacent area C of the first inclined surface 7 of the adaptor 100B and the horizontal end surface of the top wall B as a lever fulcrum, so that the front end of the driving arm connecting portion 200 rotates downward, the two side walls of the driving arm connecting portion 200 abut against the two side surfaces 52 of the end cap 5 of the adaptor 100, so that the two side surfaces 52 are bent inward to recede, then the driving arm connecting portion 200 moves backward, so that the positioning salient point 203 of the driving arm connecting portion 200 enters the locking portion 42 of the limiting groove 4, then the positioning convex point 203 moves backwards along the locking part 42, the convex block 3 moves forwards in the limiting through hole 201 until the convex block 3 contacts the inner wall of the front end of the limiting through hole 201, at the moment, the first limiting convex ribs 5221 on the two side surfaces 52 rebound out of the limiting clamping grooves 202, the first limiting convex ribs 5221 are clamped and limited with the lower notch edge 2021 of the limiting clamping grooves 202 of the driving arm connecting part 200, and the front end of the driving arm connecting part 200 abuts against the vertical connecting surface 53 on the adapter 100b to limit the forward movement of the driving arm connecting part 200.

Third embodiment of the adapter:

as shown in fig. 5 and 6, the adaptor 100c of this embodiment is substantially the same as the second embodiment, and only a guiding inclined plane 524 is added on the side surface 52 of the end cap above the first limiting protrusion 5221, so that when the driving arm connecting part 200 is abutted against the guiding inclined plane 524 on the side surface of the end cap 200 from top to bottom, the side surfaces 52 of the end cap 5 are driven to bend inwards to give way.

How to mount the driving arm connecting part 200 and the adapter 100c of this embodiment in substantially the same way as the second embodiment is shown in fig. 12, the driving arm connecting part 200 is mounted in a tilted alignment with the adapter 100c downward, and the positioning bump 203 is aligned with the receding part 41 of the limiting groove 4 on the driving arm connecting part 200; as shown in fig. 13, the driving arm connecting portion 200 is moved downward until the bump 3 on the adapter 100c is fitted in the limiting through hole; as shown in fig. 14, two side walls of the driving arm connecting portion 200 contact the guiding inclined surfaces 524 on the adaptor 100c, and the two side surfaces 52 of the end cap 5 are bent inwards to give way by abutting against the guiding inclined surfaces 524, and at the same time, the inner top wall of the driving arm connecting portion 200 contacts the first inclined surface 7; as shown in fig. 15, the driving arm connecting portion 200 rotates the front end of the driving arm connecting portion 200 downward with the adjacent region C of the first inclined surface 7 and the horizontal end surface of the top wall as a lever fulcrum, and the two side walls of the driving arm connecting portion 200 further press and bend the guide inclined surfaces 524 of the adapter 100C to give way; as shown in fig. 16, the driving arm connecting portion 200 is moved backward, and the front end of the driving arm connecting portion 200 is rotated downward, so that the guiding inclined planes 524 on the two side surfaces 52 of the adapter 100c are rebounded from the limiting clamping grooves 202 of the driving arm connecting portion 200; as shown in fig. 17, the first limit protruding ridge 5221 of the first limit sunken groove 522 from the bottom end of the guide inclined plane 524 to the lower cutting edge of the limit clamping groove 202 of the driving arm connecting portion 200 is clamped and limited, the front end of the driving arm connecting portion 200 abuts against the vertical connecting surface 53 on the adapter 100c, the bump 3 contacts with the front end of the limit through hole, and the positioning salient point 203 is located on the locking portion 42 of the limit groove 4, so that the front and back movement of the driving arm connecting portion 200 relative to the adapter 100c is limited. .

A fourth embodiment of the adapter;

as shown in fig. 7 and 8, the adaptor of this embodiment is substantially identical to the third embodiment, and only the side surface 52 of the end cap 5 is provided with a second limit sunken groove 523 above the guide inclined surface 524, the second limit sunken groove 523 is located in front of the first limit sunken groove 522, specifically, the second limit sunken groove 523 has second limit protruding ribs 5231 in limit fit with two side walls of the driving arm connecting portion 200, a third limit protruding rib 5222 in limit fit with the front end of the lower cut of the limit clamping groove 202 of the driving arm connecting portion 200 is provided in the first limit sunken groove 522, and the third limit protruding rib 5222 is located at the rear end of the second limit protruding rib 5231.

With this embodiment, when the two side surfaces of the end cap 5 have a thicker wall thickness and the distance between the two outer side surfaces 52 is greater than the distance between the two inner side walls of the driving arm connecting portion 200, the second limiting sinking groove 523 provides a yielding space for the driving arm connecting portion 200 to be sleeved on the outer side of the adapter 100d from top to bottom. During installation, the steps are the same as those of the third embodiment, the front end of the driving arm connecting portion 200 is aligned with the second limiting sunken groove 523, or the positioning salient point 203 of the driving arm connecting portion 200 is aligned with the receding portion 41 of the limiting groove 4 and is sleeved on the outer side of the adapter 100d from top to bottom, wherein the second limiting protruding rib 5231 enables the driving arm connecting portion 200 to limit the front end of the driving arm connecting portion 200 to exceed the second limiting protruding rib 5231 during installation, otherwise the driving arm connecting portion 200 cannot be buckled with the adapter 100 d.

How the adapter 100d of this embodiment is mounted to the driving arm connecting portion 200 is completely the same as that of the third embodiment, and therefore, description thereof will not be repeated, and fig. 10 is a schematic view showing that the driving arm connecting portion 200 is stably mounted to the adapter 100 d.

The present invention also discloses a windshield wiper, which comprises any one of the

adapters

100a,100b, 100c, 100d, wherein the

adapters

100a,100b, 100c, 100d are used for connecting the windshield wiper assembly with the driving arm, i.e. the most obvious difference between the windshield wiper of this type and the traditional windshield wiper is that any one of the

adapters

100a,100b, 100c, 100d is used, the structure of the windshield wiper assembly used is the structural feature known by those skilled in the art, and the conventional technology is also used for mounting the

adapters

100a,100b, 100c, 100d to the windshield wiper assembly, and generally, the

adapters

100a,100b, 100c, 100d can be mounted to the corresponding positions in the length direction of the windshield wiper assembly in an up-and-down swinging manner, so that the description is not repeated.

Claims

1. An adapter as a connection between a wiper assembly and a drive arm;

the front end of the driving arm is provided with a driving arm connecting part (200), the driving arm connecting part (200) is a U-shaped groove component, the top wall of the driving arm is provided with at least one limiting through hole (201), the front ends of two side walls are respectively provided with a horizontally arranged limiting clamping groove (202), and the inner wall of at least one side wall is provided with a positioning salient point (203);

the adapter (100 a,100B, 100c, 100 d) comprises two side walls a and a top wall B, the two side walls a are provided with pivot connection parts (101), the adapter (100 a,100B, 100c, 100 d) can swing up and down along the length direction of the adapter by using the pivot connection parts (101) as rotation fulcrums, the adapter (100 a,100B, 100c, 100 d) is embedded in the driving arm connection part (200), the side walls a and the top wall B are used as bearing and supporting surfaces of the driving arm connection part (200), the front end of the adapter (100 a,100B, 100c, 100 d) is provided with first limit parts (1 a, 1B), and the driving arm connection part (200) is limited to move forwards relative to the adapter (100 a,100B, 100c, 100 d) by the first limit parts (1 a, 1B); second limiting parts (2 a, 2 b) are arranged at the front ends of two side walls A of the adapters (100 a,100b, 100c, 100 d), and the limiting clamping grooves (202) of the driving arm connecting parts (200) are limited to move upwards relative to the adapters (100 a,100b, 100c, 100 d) by means of mutual clamping of the second limiting parts (2 a, 2 b) and the limiting clamping grooves (202) of the driving arm connecting parts (200); a bump (3) without elastic deformation is arranged on the top wall B of the adapter (100 a,100B, 100c, 100 d), the bump (3) is sleeved in the limit through hole (201) of the driving arm connecting part (200), and the length X1 of the bump (3) is less than the length X2 of the limit through hole (201) of the driving arm connecting part (200), and the adapter is characterized in that: the side wall A of the adapter (100 a,100b, 100c, 100 d) is at least provided with a limit groove (4) at a position corresponding to a moving track of a positioning salient point (203) of the driving arm connecting part (200), the limit groove (4) is provided with a position yielding part (41) for downwards displacing the positioning salient point (203) of the driving arm connecting part (200) and a locking part (42) for locking the positioning salient point (203) of the driving arm connecting part (200) in the vertical direction, and the locking part (42) is positioned at the rear end of the position yielding part (41).

2. The adapter of claim 1, wherein: the limiting grooves (4) are symmetrically arranged on two side walls A of the adapters (100 a,100b, 100c and 100 d).

3. The adapter of claim 1, wherein: the limiting groove (4) is L-shaped, the positioning part (41) is composed of a vertical section, and the locking part (42) is composed of a horizontal extension section which is positioned at the bottom end of the vertical section and extends towards the rear end.

4. The adapter of claim 3, wherein: when the limiting through hole (201) of the driving arm connecting part (200) is sleeved in the bump (3), the longest distance X4 from the inner wall of the front end of the limiting through hole (201) to the front end of the outer wall of the bump (3) is less than or equal to the length X3 of the horizontal extension section (42).

5. The adapter of any of claims 1-4, wherein: the side wall A is provided with a first positioning reference part (43) and a second positioning reference part (44) which are outwards protruded from the front to the back at intervals along the length direction, a gap formed between the first positioning reference part (43) and the second positioning reference part (44) of the side wall A forms a limiting groove (4), and the first positioning reference part (43) and the second positioning reference part (44) can be arranged at the outer end of the side wall A in a solid and integral forming mode or in a hollow and hollowed-out structure in an integral forming mode.

6. The adapter of claim 5, wherein: the outer side end surfaces of the first positioning reference part (43) and the second positioning reference part (44) are respectively provided with a first positioning reference surface (431) and a second positioning reference surface (441) correspondingly, and the first positioning reference surface (431) and the second positioning reference surface (441) are in transition fit with the two inner side walls of the driving arm connecting part (200).

7. The adapter of claim 1, wherein: the top wall B is provided with a hollow-out part (6) at a position opposite to the pivot connecting part (101), and the hollow-out part (6) provides an abdicating space for the adapters (100 a,100B, 100c, 100 d) to swing up and down along the length direction of the adapters by taking the pivot connecting part (101) as a rotating fulcrum.

8. The adapter of claim 1, wherein: the height of the bump (3) is larger than the thickness of the top wall of the driving arm connecting part (200), and the top of the bump (3) extends to the front ends of the adapters (100 a,100b, 100c, 100 d) to form a bending part (31).

9. The adapter of claim 1, wherein: the first limiting part (1 a) at the front end of the adapter (100 a) is a blocking edge (1 a), a step surface is formed between the blocking edge (1 a) and the top wall B, and the blocking edge (1 a) and the front end surface of the top wall of the driving arm connecting part (200) are abutted against each other to limit the forward displacement of the driving arm connecting part (200) relative to the adapter (100 a); the side wall hook (2 a) is arranged at the position, corresponding to the limiting clamping groove (202) of the driving arm connecting part (200), of the two side walls A, the side wall hook (2 a) serves as a second limiting part (2 a), a hook surface (21 a) is formed at the bottom end of the side wall hook (2 a), the side wall hook (2 a) has certain elastic allowance, and the limiting clamping groove (202) of the driving arm connecting part (200) is limited in vertical displacement relative to the adapter (100 a) by means of the corresponding clamping connection of the hook surface (21 a) at the bottom end of the side wall hook (2 a) and the lower notch edge (2021) of the limiting clamping groove (202) of the driving arm connecting part (200).

10. The adapter of claim 1, wherein: the front end of the adapter (100 b, 100c, 100 d) forms an end cap (5), the end cap (5) is formed by at least a top surface (51), two side surfaces (52) and a vertical connecting surface (53), one end of the top surface (51) adjacent to the adapter (100 b, 100c, 100 d) is connected with the top wall of the adapter (100 b, 100c, 100 d) through the vertical connecting surface (53), and therefore the vertical connecting surface (53) forms a first limiting part (1 b) of the adapter (100 b, 100c, 100 d); the top surface (51) is provided with a side surface (52) downwards along two sides of the width direction of the adapters (100 b, 100c and 100 d), the side surface (52) is arranged at the outer sides of two side walls A of the adapters (100 b, 100c and 100 d) at intervals, the two side surfaces (52) at least form an extension section (521) which is located at the rear end of the vertical connecting surface (53) at the middle lower part, a first limiting sunk groove (522) is arranged at least at the extension section (521), the first limiting sunk groove (522) at least comprises a first limiting convex rib (5221) which is used for being mutually clamped and limited with a lower cut edge (2021) of a limiting clamping groove (202) of the driving arm connecting part (200), and the first limiting convex rib (5221) serves as a second limiting part (2 b).

11. The adapter of claim 10, wherein: the side surface (52) is additionally provided with a guide inclined surface (524) above the first limit protruding rib (5221), so that when the driving arm connecting part (200) is abutted against and contacted with the guide inclined surfaces (524) of the two side surfaces (52) of the end cap (5) from top to bottom, the two side surfaces (52) of the end cap (5) are driven to bend inwards to give way.

12. The adapter of claim 11, wherein: the side surface (52) is provided with a second limit sinking groove (523) above the guide inclined surface (524), and the second limit sinking groove (523) is positioned in front of the first limit sinking groove (522).

13. The adapter of any of claims 9-12, wherein: the rear end of the top wall of the adapter (100 a,100b, 100c, 100 d) has a first slope (7) with a height gradually increasing from the rear to the front along the length direction.

14. The adapter of any of claims 10-12, wherein: the side is provided with a crack (525) at the front end of the first limit sinking groove (522), and a pressing part (526) is formed between the crack (525) and the first limit sinking groove (522).

15. The adapter of any of claims 10-12, wherein: the side wall A of the adapter (100 b, 100c, 100 d) extends forwards to the inner wall of the top surface (51) of the end cap, and an overlapping area (8) is arranged between the side wall A and the side surface (52) of the end cap, so that the side wall A plays a role in bearing and supporting the two side surfaces (52) of the end cap.

16. The adapter of claim 15, wherein: the middle lower part of the inner walls of the two side faces (52) of the end cap (5) is respectively provided with a second inclined face (527), and the distance between the two second inclined faces (527) is gradually widened from top to bottom.

17. A wiper blade, characterized in that it comprises an adapter (100 a,100b, 100c, 100 d) according to any of claims 1 to 16, said adapter (100 a,100b, 100c, 100 d) being adapted to enable connection of the wiper blade assembly to the drive arm.