CN113479168B

CN113479168B - Adapter and windshield wiper

Info

Publication number: CN113479168B
Application number: CN202110854540.6A
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: 2021-07-28
Publication date: 2023-02-28
Anticipated expiration: 2041-07-28
Also published as: CN113428112A; CN113428112B; CN113479168A

Abstract

An adapter is used as a connecting piece between a windshield wiper assembly and a driving arm, the adapter at least comprises a body consisting of two side walls A and a top wall B, the two side walls A are provided with pivot connecting parts, the adapter can swing up and down along the length direction of the adapter by taking the pivot connecting parts as rotating fulcrums through the pivot connecting parts, the adapter is used for being embedded in the connecting parts of the driving arm, a first limiting part is arranged at the front end of the adapter and used for limiting the forward displacement of the driving arm relative to the adapter, second limiting parts are arranged on the two side walls A of the adapter and used for limiting the upward displacement of the driving arm relative to the adapter, and a lug without elastic deformation is arranged on the top wall B of the adapter and relative to a limiting through hole at the top of the connecting part of the driving arm and used for limiting the backward displacement of the adapter.

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

Different vehicle models are adapted with different wiper driving arms, for example, CN210133087U and US20200122690A1 patent publications have disclosed a driving arm connection part 200a, as shown in fig. 1-1, which has a U-shaped groove member surrounded by a top wall and two side walls, a pair of first limiting clamping points 202 and a first limiting clamping strip 203 which are hooked inwards are respectively arranged at intervals from front to back on the bottoms of the two side walls, and the top wall has a limiting through hole 201a; wherein the adapter 30a (named adapter herein) disclosed in CN101189148B has a button 34a (see fig. 1-2) capable of elastic deformation, while the adapter 2a disclosed in US20200122690A1 also has a

locking tab

221a, 231a (see fig. 1-3) having elastic deformation, and the button 34a and the

locking tab

221a, 231a (hereinafter referred to as elastic locking point) are nested with each other to cooperate with the through limiting hole 201a of the driving arm connecting portion 200a, but due to the elasticity of the elastic locking point, the elastic locking point of the adapter is easily disengaged from the through limiting hole 201a of the driving arm connecting portion 200a under the following use conditions: (1) when the driving arm connecting part 200a is connected with a wiper assembly through an adapter to wipe the windshield of the motor vehicle back and forth, the limiting through hole 201a of the driving arm connecting part 200a applies a large component force to the elastic clamping point of the adapter, especially under the condition of severe weather environment, such as strong wind environment; (2) the adapter is mainly the working of plastics, and its elasticity stuck point mainly sets up the free end at elastic cantilever, and after using a period, elastic cantilever is ageing easily, lacks the resilience, makes elastic cantilever sink or in the use, and elastic cantilever appears the fracture.

As shown in fig. 2-1, another wiper driving arm connecting portion 200b is a U-shaped groove member, specifically, in CN111114497A, the bottom of the side edge thereof is respectively provided with second limiting clamping strips 204 disposed oppositely, the front end of at least one second limiting clamping strip 204 facing the driving arm connecting portion is provided with a second limiting clamping point 205, the top wall thereof is provided with a limiting through hole 201b, according to the disclosure of the specification, a wiper arm joint 12a (named as an adapter) matched with the driving arm connecting portion 200b is formed in sequence from front to back on the side wall thereof as shown in fig. 2-2, the front end of the wiper arm joint 12a is provided with a flip 14a for limiting the driving arm connecting portion 200b from upward and backward displacement relative to the wiper arm joint 12a by nesting and matching the first limiting clamping point 1271a and the second clamping strip 1271a with the second limiting clamping point 205 and the second limiting clamping strip 204 disposed correspondingly to the driving arm connecting portion 200b, the driving arm connecting portion 200b is configured to be a relatively high in manufacturing cost of the wiper arm joint 200b, and the design of the wiper driving arm joint 200b is relatively complicated and the manufacturing of the driving arm connecting portion 201b is relatively high in design; the following disclosure also discloses an adapter capable of being nested and fitted with the through hole 201b on the top wall of the driving arm connecting portion 200b, such as CN107054301A, but the technical means adopted by the adapter is that an elastic clamping point is disposed on the top wall of the adapter, which is substantially the same as the technical means of the

adapters

30a, 2a and the limiting through hole 201A of the driving arm connecting portion 200a, so the technical problems generated by the adapters are different and will not be described again.

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

The first purpose of the invention is to provide an adapter which can be stably connected with a connecting part of a driving arm, wherein the adapter has longer service life, is not easy to be separated from the connecting part of the driving arm in the scraping and brushing process, and ensures the 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, which is used as a connecting member between a wiper assembly and a driving arm, wherein the front end of the driving arm is provided with a driving arm connecting part, the driving arm connecting part is a U-shaped groove member, the top of the driving arm connecting part is provided with at least one limiting through hole, the adapter at least comprises a body consisting of two side walls a and a top wall B, the two side walls a are provided with pivot connecting parts, the adapter can swing up and down along the length direction thereof by using the pivot connecting parts as a rotation fulcrum, the adapter is used for being embedded in the driving arm connecting part, the side walls a and the top wall B are used as bearing and supporting surfaces of the driving arm connecting part, the front end of the adapter is provided with a first limiting part for limiting the forward displacement of the driving arm relative to the adapter, the two side walls a of the adapter are provided with second limiting parts for limiting the upward displacement of the driving arm relative to the adapter, the top wall B of the adapter is provided with a bump without elastic deformation relative to the limiting through hole, the length X1 of the bump is less than the limiting through hole length X2 of the driving arm connecting part, and the first limiting part can realize the switching between two working states;

when the driving arm connecting part is sleeved at the outer end of the adapter from top to bottom, the lug is arranged in the limiting through hole at the moment, the first limiting part is in a first working state, and the first limiting part cannot limit the forward displacement of the driving arm connecting part relative to the adapter; when the driving arm connecting part moves relative to the adapter from front to back until the bump and the limiting through hole abut against each other, the driving arm connecting part cannot move backwards relative to the adapter, at the moment, the first limiting part is in the second working state, and the first limiting part limits the driving arm connecting part to move forwards relative to the adapter.

Adopt above-mentioned structure, because the lug of adapter is set firmly at the roof of adapter, do not have elastic deformation, simultaneously in order to guarantee that this lug can be installed in the spacing through-hole of actuating arm connecting portion smoothly, set up first spacing portion as the change that has two operating condition, because first spacing portion is used for blockking actuating arm connecting portion and shifts forward for the adapter, consequently these two operating condition can be understood that this first spacing portion is used for having two different position states at least with the part that actuating arm connecting portion pushed up each other, and at least when first spacing portion and actuating arm connecting portion front end support each other and lean on, first spacing portion can be in a stable state, can effectively restrict actuating arm connecting portion and shift forward for the adapter.

Further, the top wall B of the adapter is provided with a hollow part in a position relative to the pivot connection part, 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, and the overall height of the adapter is effectively reduced by the design of the hollow part.

Furthermore, 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 is provided with a bending part extending towards the front end of the adapter, and through the design of the bending part, the limit structure of the connecting part of the adapter and the driving arm in the vertical direction can be increased, and the stability of connection between the adapter and the connecting part of the driving arm is increased.

As one embodiment of the first limiting part of the adapter, the first limiting part of the adapter is an elastic cantilever arranged at the front end of the top wall and along the length direction of the top wall, and a salient point is arranged at the free end of the elastic cantilever; when the outer end of the adapter is arranged in to actuating arm connecting portion top-down cover, the top wall front end pushes down the bump in the actuating arm connecting portion this moment, order about the elasticity cantilever and bend downwards and be in first operating condition, ensure that the bump of adapter can be placed in spacing through-hole in, when the actuating arm connecting portion supports when leaning on each other until bump and spacing through-hole for the adapter from forward to backward translation, the elasticity cantilever resilience forms second operating condition this moment, the top wall front end in the actuating arm connecting portion is supported on to its elasticity cantilever's bump top, restriction actuating arm connecting portion is for the adapter displacement forward.

As one embodiment of the first limiting part of the adapter, the first limiting part of the adapter includes an elastic cantilever and a sliding cover, the elastic cantilever is located at the front end of the top wall B of the adapter body and is arranged along the length direction of the top wall B, a convex point is arranged at the free end of the elastic cantilever, the sliding cover is a cover body structure, one side of the sliding cover facing the elastic cantilever is provided with an open end, the top of the sliding cover is provided with a positioning hole, and the sliding cover 13 can be buckled to the front end part of the adapter body and can reciprocate along the length direction of the adapter body; when the first limiting part of the adapter is in a first working state, the sliding cover is positioned at a position far away from the front end part of the adapter body, the positioning hole is separated from the salient point of the adapter, the driving arm connecting part is sleeved at the outer end of the adapter from top to bottom, the driving arm connecting part cannot interfere with the sliding cover, and the lug of the adapter can be ensured to be arranged in the limiting through hole; the driving arm connecting portion is translated from front to back relative to the adapter until the bump and the limiting through hole abut against each other, then the first limiting portion of the adapter is adjusted to be in a second working state, the sliding cover is displaced from front to back relative to the adapter, the positioning hole and the bump are mutually nested and matched, at the moment, the sliding cover abuts against each other towards one side end face of the driving arm connecting portion and the front end face of the driving arm connecting portion, and the driving arm connecting portion is limited to displace forwards relative to the adapter.

As one embodiment of the first limiting part of the adapter, the first limiting part of the adapter comprises a flip cover, and the flip cover is hinged to the front end of the adapter body; when the first limiting part of the adapter is in a first working state, the flip cover of the adapter is turned outwards, and the flip cover cannot interfere with the front end of the driving arm connecting part, so that the driving arm connecting part cannot be limited to move forwards relative to the adapter; when the first limiting part of the adapter is in the second working state, the turnover cover is firmly buckled to the front end of the adapter body and is abutted against the front end surface of the driving arm connecting part, and the driving arm connecting part is limited to move forwards relative to the adapter.

When the driving arm connecting part is specifically defined as a first driving arm connecting part, the bottoms of the two side walls of the first driving arm connecting part are respectively provided with a pair of first limiting clamping points and first limiting clamping strips which are inwards hooked at intervals from front to back; the second limiting part of the first adapter is a first positioning reference part and a second positioning reference part which are arranged on two side walls A in an outwards protruding mode at intervals, the bottom of the first positioning reference part and the bottom of the second positioning reference part are respectively provided with a first positioning reference surface and a second positioning reference surface in a horizontal mode, a first yielding part is formed between the first positioning reference part and the second positioning reference part, the horizontal length of the first yielding part is larger than the length of a first limiting clamping strip, when the first driving arm connecting part is sleeved on the outer side of the first adapter from top to bottom, the outer side surfaces of the first positioning reference part 21 and the second positioning reference part are in mutual abutting fit with the inner side wall of the first driving arm connecting part, and meanwhile, the first limiting clamping point and the first limiting clamping strip abut against the corresponding first positioning reference surface and the second positioning reference surface in the vertical direction, so that the upward displacement of the first driving arm connecting part relative to the first adapter is limited.

When the driving arm connecting part is specifically limited to be a second driving arm connecting part, the bottom parts of two side walls of the second driving arm connecting part are provided with a pair of second limiting clamping strips which are reversely hooked towards the inner side, and the front end of at least one second limiting clamping strip is provided with a second limiting clamping point which extends inwards; the second limiting part of the second adapter is characterized in that two side walls A are respectively provided with a third positioning reference part and a fourth positioning reference part from front to back, the bottom of the fourth positioning reference part is horizontally provided with a fourth positioning reference surface, a second yielding part for inserting a second limiting clamping strip is formed between the third positioning reference part and the fourth positioning reference part, and meanwhile, a third yielding part is arranged at the second yielding part and corresponding to the position of a second limiting clamping point of the connecting part of the second driving arm; the bottom of the second positioning portion and the position close to the third positioning portion are provided with a third positioning reference surface, when the second driving arm connecting portion is sleeved on the outer side of the second adapter from top to bottom, the outer side surfaces of the third positioning reference portion and the fourth positioning reference portion and the inner side wall of the second driving arm connecting portion are abutted against and matched with each other, and meanwhile, the second limiting clamping point and the second limiting clamping strip are abutted against the corresponding third positioning reference surface and the fourth positioning reference surface in the vertical direction respectively, so that the second driving arm connecting portion is limited from moving upwards relative to the second adapter.

The invention also discloses a windshield wiper supported by the adapters, which at least comprises a windshield wiper assembly consisting of a windshield wiper rubber strip and a windshield wiper support, wherein the windshield wiper support is a boneless support consisting of a bone support or an elastic sheet, a pivot connecting seat is fixedly arranged on the windshield wiper support, and the adapters are mutually pivoted with the pivot connecting seat through the pivot connecting part of the adapters.

The windshield wiper made of the adapter can be connected to the driving arm connecting portion more stably, and the convex block on the adapter is not prone to being separated from the limiting through hole of the driving arm connecting portion, so that driving safety is guaranteed.

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. 1-1 is a perspective view of a first driving arm connecting portion disclosed in the background of the present invention;

figures 1-2 are perspective views of one of the conventional adapters for use with a first drive arm connection disclosed in the background of the invention;

FIGS. 1-3 are perspective views of another conventional adapter for a first drive arm connection disclosed in the background of the present invention;

FIG. 2-1 is a perspective view of a second driving arm connecting portion disclosed in the background of the present invention;

FIG. 2-2 is a perspective view of a conventional adapter for a second drive arm connection disclosed in the background of the invention;

FIG. 3-1 is an exploded view of an adapter and a first drive arm coupling portion in accordance with a first embodiment of the present disclosure;

3-2 are schematic views illustrating the installation of the adaptor and the first driving arm connecting portion according to the first embodiment of the present disclosure;

3-3 are exploded views of the adaptor and the first drive arm connection portion according to a second embodiment of the present disclosure;

FIGS. 3-4 are exploded bottom views of the adapter and the first drive arm connecting portion in accordance with a second embodiment of the present invention;

FIGS. 3-5 are schematic views illustrating an installation process of a second embodiment of the present disclosure;

FIGS. 3-6 are schematic views illustrating the installation of the adaptor and the first driving arm connecting portion according to the second embodiment of the present invention;

FIGS. 3-7 are exploded views of a sliding cover and a body of an adapter according to a third embodiment of the present disclosure;

FIGS. 3-8 are schematic front views of a slider of an adapter according to a third embodiment of the present disclosure;

FIGS. 3-9 are schematic views illustrating the mounting of the adaptor and the first driving arm connecting portion according to the third embodiment of the present disclosure;

FIGS. 3-10 are exploded views of a flip cover and a body of an adapter in accordance with a fourth embodiment of the present disclosure;

FIGS. 3-11 are schematic front views of a flip cover of an adapter according to a fourth embodiment of the present disclosure;

fig. 3-12 are schematic views illustrating the flip cover in an overturned state when the adaptor according to the fourth embodiment of the present invention is mounted on the connecting portion of the first driving arm;

fig. 3-13 are schematic views illustrating the flip cover in a closed state when the adaptor according to the fourth embodiment of the present disclosure is mounted on the first driving arm connecting portion;

FIG. 4-1 is an exploded view of the adaptor and the second driving arm connecting portion according to a fifth embodiment of the present disclosure;

FIG. 4-2 is a schematic view of the installation of an adapter and a second driving arm connecting portion according to a fifth embodiment of the present disclosure;

FIGS. 4-3 are exploded bottom views of the adapter and the second drive arm connecting portion in accordance with a fifth embodiment of the present invention;

FIGS. 4-4 are bottom views of the adaptor and the second driving arm connecting portion of the fifth embodiment of the present invention;

FIGS. 4-5 are schematic views illustrating the installation process of the adaptor and the second driving arm connecting portion according to the fifth embodiment of the present disclosure;

FIGS. 4-6 are exploded views of a sliding cover and a body of an adapter according to a sixth embodiment of the present disclosure;

FIGS. 4-7 are schematic views illustrating the mounting of an adapter and a second driving arm connecting portion according to a sixth embodiment of the present disclosure;

FIGS. 4-8 are exploded views of a flip cover and a body of an adapter according to a seventh embodiment of the present disclosure;

FIGS. 4-9 are schematic views illustrating a flip cover in an inverted state when the adaptor according to a seventh embodiment of the present invention is mounted on the connecting portion of the second driving arm;

fig. 4-10 are schematic views illustrating a flip cover in a closed state when the adaptor according to the seventh embodiment of the present disclosure is mounted on the second driving arm connecting portion;

fig. 5 is a schematic view of a wiper blade according to the present invention, to which an adaptor and a second driving arm connecting portion according to a fifth embodiment are attached. .

Detailed Description

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

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar 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 illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

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 definition of windshield wiper subassembly, ordinary skilled in the art can know that this windshield wiper subassembly has the windshield wiper support at least, windshield wiper adhesive tape and the connection base of setting at windshield wiper support middle part, this connection base is used for articulating each other with the pivot connection portion of adapter, this windshield wiper support can be for there being the bone support or be the boneless support of constituteing by the shell fragment, or by having the mixed support that bone support and shell fragment constitute jointly, the bottom of this windshield wiper support is direct or the indirect windshield wiper adhesive tape that has set firmly, windshield wiper support is used for transmitting the actuating arm and applies to the reciprocal wobbling lateral force of windshield wiper adhesive tape, and ensure that the windshield of vehicle is hugged closely to the windshield adhesive tape, general condition has the bone windshield wiper support not to have the water conservancy diversion sheath, and boneless support has the water conservancy diversion sheath, this water conservancy diversion sheath sets up the top at the windshield wiper adhesive tape.

The windshield wiper assembly is connected with a driving arm of a motor vehicle through an adapter, and the windshield wiper assembly is driven by the driving arm to wipe back and forth on the surface of windshield glass.

The following is a detailed description of an adapter for connecting the first driving arm connecting portion 200 a:

as shown in fig. 1-1, the first driving arm connecting portion 200a is a U-shaped groove member formed by two side walls and a top wall, a pair of first limiting clamping points 202 and a first limiting clamping strip 203 which are hooked inward are respectively arranged at intervals from front to back at the bottom of the side wall, and a limiting through hole 201a is formed in the top wall.

Specific examples of the first adapter connected to the first driving arm connecting portion 200 a:

example 1:

as shown in fig. 3-1 and 3-2, the first adapter 100a is generally an injection molded part, and includes a body surrounded by at least two side walls a and a top wall B, the two side walls a are respectively provided with a protruding shaft 101 extending inward in opposite directions, the wiper assembly is provided with a hinge seat, the hinge seat is provided with a pivot hole at a corresponding position, and the protruding shaft 101 and the pivot hole are mutually matched to form a pivot connection relationship (not shown), so that the first adapter 100a can swing up and down along the length direction thereof with the protruding shaft 101 as a rotation fulcrum, it should be noted that if the protruding shaft 101 and a part carried by the pivot hole are replaced, the pivot matching relationship between the first adapter 100a and the hinge seat can also be realized, that is, the protruding shaft is provided on the hinge seat, and the corresponding position of the two side walls a of the first adapter 100a is provided with the pivot hole.

The top wall B of the first adapter 100a is sequentially provided with a first limiting part 1a and a bump 3 without elastic deformation from front to back along the length direction; the first limiting portion 1a is provided with an elastic cantilever 11 along the length direction at the front end of the top wall, the free end of the elastic cantilever 11 is provided with a convex point 12, and the convex point 12 forms a resisting surface 122 at the end surface of one side facing the first driving arm connecting portion 200a, and the more preferable design is that the fixed end of the elastic cantilever 11 is provided at the front end of the top wall B of the first adapter 100a, and the free end of the elastic cantilever 11 faces one side of the first driving arm connecting portion 200a, so that when the convex point 12 on the elastic cantilever 11 and the front end of the first driving arm connecting portion 200a are mutually supported and in axial stress, the elastic cantilever 11 is not easily bent and deformed. The length X1 of the lug 3 is less than the length X2 of the limiting through hole 201, so that the lug 3 has a space which is displaced along the length direction of the first adapter 100a in the limiting through hole 201; meanwhile, in order to enable the first adapter 100a to swing up and down along the length direction thereof by taking the pivot connection part 101 as a rotation fulcrum, a hollow part 4 is preferably arranged at the position of the top wall B relative to the pivot connection part 101, although it is also possible if the top wall B is provided with a closed end, which will cause the height of the whole first adapter 100a to increase, and will increase the wind resistance; in order to increase the structural strength of the hollow portion 4, at least a plurality of reinforcing ribs 41 are disposed on the hollow portion 4, and two ends of the reinforcing ribs 41 are respectively connected to two side walls a of the first adaptor 100 a.

Two side walls a of the first adapter 100a are provided with two first positioning reference portions 21 and two second positioning reference portions 22 protruding outward from front to back in sequence, the horizontal length of the first relief portion 230 is larger than the length of the first positioning clamping strip 203, the bottom of the first positioning reference portion 21 and the bottom of the second positioning reference portion 22 are respectively provided with a first positioning reference surface 211 and a second positioning reference surface 221, the first positioning reference portion 21 and the second positioning reference portion 22 are respectively provided with a first positioning reference surface 211 and a second positioning reference surface 221 in a horizontal manner, the first positioning reference portion 21 and the second positioning reference portion 22 are respectively provided with a first positioning reference surface 212a and a second positioning reference surface 222a protruding from the two side walls a toward the front end of the first adapter 100a, the first positioning reference surface 202 and the first positioning clamping strip 203 are respectively matched with each other in a sliding manner, the outer side end surfaces of the first positioning reference portion 21 and the second positioning reference portion 22 are at least in a certain area, the outer side end surfaces of the first positioning reference portion 21 and the second positioning reference portion 22 are provided with a guiding protruding and a protruding toward the two side walls, and the inner side walls are provided with a guiding protruding and a thicker than the first positioning reference portion 21a, and the second positioning reference portion 21 and the second positioning reference portion is provided with a thickness of the second positioning reference portion 27, which is necessary to prevent the second positioning reference portion from affecting the second positioning reference portion in the whole injection molding process, and the second positioning reference portion 21a, and the second positioning reference portion 21 and the second positioning reference portion, when the second positioning reference portion 21 and the second positioning reference portion is not affecting the second positioning reference portion.

The specific installation mode is as follows: the first driving arm connecting portion 200a is sleeved outside the first adapter 100a from top to bottom, the first limit clipping point 202 and the first limit clipping strip 203 respectively abut against and slide downwards along the guide protruding rib 212a of the first positioning reference portion 21 and the guide protruding rib 222a of the second positioning reference portion 22 until the inner top wall of the first driving arm connecting portion 200a abuts against the top wall B of the first adapter 100a, at this time, the inner top wall of the first driving arm connecting portion 200a presses down the protruding point 12 of the elastic cantilever 11 to make the elastic cantilever 11 in a downward elastic deformation state, the protruding point 12 cannot limit the first driving arm connecting portion 200a to move along the length direction of the first adapter 100a, that is, the first limit portion 1a of the first adapter 100a is in a first working state, meanwhile, the limit through hole 201a of the first driving arm connecting portion 200a can sleeve the protruding block 3 therein, and the outer side end surfaces of the first positioning reference portion 21 and the second positioning reference portion 22 and the inner side end surface of the first driving arm connecting portion 200a abut against each other; then, the first driving arm connecting portion 200a is translated backward relative to the first adapter 100a until the bump 3 abuts against the inner wall of the front end of the limiting through hole 201a, at this time, the top wall of the first driving arm connecting portion 200a is separated from the bump 12, the elastic cantilever 11 rebounds, so that the abutting surface 122 of the bump 12 abuts against the front end of the top wall of the first driving arm connecting portion 200a, that is, the first limiting portion 1a of the first adapter 100a is in the second working state, thereby limiting the forward displacement of the first driving arm connecting portion 200a relative to the first adapter 100a, and simultaneously the first limiting clamping point 202 and the first limiting clamping strip 203 have been translated to the first positioning reference surface 211 of the first positioning reference portion 21 and the second positioning reference surface 221 of the second positioning reference portion 22 and abut against each other, thereby limiting the upward displacement of the first driving arm connecting portion 200a relative to the first adapter 100 a.

Example 2:

as shown in fig. 3-3 and 3-4, the structure of the first limiting portion 1a, the protruding block 3 and the hollow portion 4 of the first adapter 100b is substantially the same as that of the first adapter 100a (the first embodiment), and the first guiding inclined surface 121 is preferably designed only on one side of the protruding point 12 of the first limiting portion 1a facing the fixed end, which is the most important difference in this embodiment that the second limiting portion 2b is also provided with the first positioning reference portion 21 and the second positioning reference portion 22, the first yielding portion 230 is provided between the first positioning reference portion 21 and the second positioning reference portion 22, and the technical effects achieved by the first positioning reference portion 21 and the second positioning reference portion 22 are also substantially the same as that of embodiment 1, and are mainly used for achieving the vertical limiting of the first driving arm connecting portion 200a relative to the first adapter 100b, but the second limiting portion 2b which is optimally designed can ensure that the user can install the first driving arm connecting portion 200a and the first adapter 100b more conveniently: the sidewall a of the first adapter 100b is provided with positioning portions 16 at intervals in the front end of the first positioning reference portion 21, a sliding slot 212 formed by a vertical section 2121 and an oblique section 2122 is formed between the positioning portions 16 and the first positioning reference portion 21 from top to bottom, the oblique section 2122 of the sliding slot 212 is arranged from top to bottom in a direction away from the elastic cantilever 11, a flared portion 2123 is preferably provided at an insertion end of the vertical section 2121 of the sliding slot 212 for facilitating sliding of the first limiting clamping point 202, the second positioning reference portion 22 is provided with a guiding protruding rib 222 from top to bottom at a side end surface facing the elastic cantilever 11, a profile of the guiding protruding rib 222 is substantially consistent with a profile of the sliding slot 212, and a relief space 223 is preferably formed between a bottom end of the guiding rib 222 and a bottom end (a second positioning reference surface 221) of the second positioning reference portion 22, and the relief space 223 is used for avoiding that the first limiting strip 203 of the first driving arm connecting portion 200a may be tilted back to interfere with the second positioning protruding rib 222 during installation of the first adapter 100 b.

The specific installation mode is as follows: as shown in fig. 3-5 and 3-6, when the first limit stopping point 202 and the first limit stopping strip 203 of the first driving arm connecting portion 200a move downward along the sliding slot 212 and the first yielding portion 230 correspondingly disposed on the two side walls a of the first adapter 100b, respectively, because the sliding slot 212 has the inclined section 2122, the first limit stopping point 202 of the first driving arm connecting portion 200a is driven to preferentially abut against the inclined section 21211 of the sliding slot, which is located on one side of the positioning portion 16, of the inclined section 2122, and then slide downward along the inclined section 21211 until sliding downward to the bottom end of the first positioning reference portion 21, at this time, the first limit stopping strip 203 is also located at the bottom end of the second positioning reference portion, during the downward sliding process of the first driving arm connecting portion 200a, the front end portion thereof slightly inclines forward, the inner top wall thereof presses the bump 12 of the elastic cantilever 11 downward, if the first guide inclined plane 121 exists on the inner top wall 12, the first guide 121 can increase the contact area with the inner top wall of the first driving arm connecting portion 200a, so that the elastic cantilever 11 is more uniformly stressed, and when the bump 12 of the first driving arm connecting portion 200a is pressed downward by the bump of the first driving arm connecting portion 100a, the bump working through hole 1, and the first driving arm connecting portion 100a is in the state that the bump insert the bump working through hole 1 is pressed downward; as the first limit clamping point 202 slides downwards to the bottom end of the inclined section 2122 of the sliding slot 212 and slides horizontally backwards, until the through hole 201a of the first driving arm connecting portion 200a abuts against the bump 3 of the first adapter 100b, at this time, the front end of the first driving arm connecting portion 200a is separated from the bump 12 of the elastic cantilever 11, the elastic cantilever 11 rebounds, and the bump 12 thereof can abut against the front end of the first driving arm connecting portion 200a, so as to limit the displacement of the first driving arm connecting portion 200a in the forward direction relative to the first adapter 100b, at this time, the first limit portion 1a of the first adapter 100b is in the second working state, and the first limit clamping point 202 and the first limit clamping strip 203 of the first driving arm connecting portion 200a slide from front to back to the first positioning reference surface 211 of the first positioning reference portion 21 and the second positioning reference surface 221 of the second positioning reference portion 22 respectively and generate limit fit therewith in the vertical direction, so as to limit the upward displacement of the driving arm 200a relative to the first adapter 100 b.

Example 3:

as shown in fig. 3-7 to fig. 3-9, the first adapter 100c has a structure substantially the same as that of embodiment 2, the structure including the projection 3 and the hollow portion 4 of the top wall B of the first adapter 100c is the same as that of the two embodiments, and the structure of the second limiting portion 2B has a structure the same as that of embodiment 2, and also includes the arrangement of the sliding slot 212, but it should be noted that the embodiment can be implemented even if the second limiting portion 2a of embodiment 1 has no sliding slot; the most important difference lies in the design of the first limiting part 1b, which is as follows:

the first limiting portion 1B of the first adapter 100c includes an elastic cantilever 11a and a sliding cover 13, the elastic cantilever 11a is located at the front end of the top wall B of the body of the first adapter 100c and is arranged along the length direction thereof, a protruding point 12a is arranged at the free end of the elastic cantilever 11a, the sliding cover 13 is a cover body structure, one side of the sliding cover 13 facing the elastic cantilever 11a has an open end, the top of the sliding cover has a positioning hole 131, two inner side walls of the sliding cover 13 respectively have horizontal guiding protruding strips 132, each guiding protruding strip 132 forms a barb 1321 at one side adjacent to the open end of the sliding cover 13, two side walls a at the front end of the body of the adapter 100c are provided with grooves 133 at positions corresponding to the guiding protruding strips 132, in this embodiment, due to the positioning portion 16, the grooves 133 are directly arranged on the outer side end surface of the positioning portion 16, and a limiting block 1331 is arranged at the front end of the first adapter 100c in each groove 133; the sliding cover 13 can slide back and forth relative to the first adapter 100c by the cooperation of the guiding protrusion 132 and the groove 133.

The specific installation manner of this embodiment can refer to embodiment 2, since there is a difference in the fitting manner between the first limiting portion 1b and the first driving arm connecting portion 200a, only the limiting fitting between the first limiting portion 1b and the first driving arm connecting portion 200a is described, when the sliding cover 13 slides towards the direction of the protruding point 12a away from the elastic cantilever 11a until the barb 1321 abuts against the limiting block 1331, at this time, the first limiting portion 1b of the first adapter 100c is in the first working state, the sliding cover 13 cannot abut against and fit with the front end portion of the first driving arm connecting portion 200a, the first driving arm connecting portion 200a is sleeved on the outer end of the first adapter 100c from top to bottom, and slides backwards until the protruding block 3 and the limiting through hole 201a abut against each other; when the sliding cover 13 slides towards the direction of the convex point 12a close to the elastic cantilever 11a and is nested and matched with the convex point 12a through the positioning hole 131, at this time, the first limiting part 1b of the first adapter 100c is in the second working state, the sliding cover 13 is abutted against the front end surface of the first driving arm connecting part 200a, and the first driving arm connecting part 200a is limited from moving forward relative to the first adapter 100c, that is, the first limiting part 1b of the embodiment adopts the sliding cover 13 abutted against the front end part of the first driving arm connecting part 200a to realize limiting and matching, instead of adopting the convex point 12a of the elastic cantilever 11a and the front end part of the first driving arm connecting part 200a to realize limiting and matching, in the installation process, whether the first driving arm connecting part 200a needs to press down the elastic cantilever 11a is not a important point; in a more optimized design, a first guiding inclined plane 121a is disposed on a side of the protruding point 12a fixed toward the elastic cantilever 11a, and the first guiding inclined plane 121a is convenient for the positioning hole 131 of the sliding cover 13 and the protruding point 12a to be clamped therein; meanwhile, the sliding cover 13 is slidably disposed at the front end of the first adapter 100c forward and backward, which is not limited to the limit fit between the guiding protrusions 132 and the grooves 133, but the sliding cover 13 can be slidably moved forward and backward and can maintain a stable connection with the first adapter 100c at least when sliding to a position abutting against the front end of the first driving arm connecting portion 200 a.

Example 4:

as shown in fig. 3-10 to fig. 3-13, the first adapter 100d is mainly different from the aforementioned embodiments in that the first position-limiting portion 1c is a flip design structure, and other structures can refer to the descriptions of the aforementioned embodiments, and the second position-limiting portion is also provided with the first positioning reference portion 21 and the second positioning reference portion 22, although in the drawings of the present embodiment, the first positioning reference portion 21 and the second positioning reference portion 22 are directly provided with the guiding rib with the inclined surface toward the front end of the body of the first adapter 100d, the guiding rib with the inclined surface is not the important point of the present embodiment, even if the solution of embodiment 1 for the second position-limiting portion 2a is also feasible, in any case, a space for inserting the first position-limiting clamping point 202 of the first driving arm connecting portion 200a is required, and as shown in fig. 3-10, the sliding groove 212a is formed by the positioning portion 16a and the first positioning reference portion 21 which are provided at two side walls of the first adapter 100d a and are protruded outwards and provided at intervals.

The first limiting portion 1c of the first adapter 100d body is a cover structure formed by surrounding a top wall 141 and two side walls 142, one side of the cover 14 facing the support arms 15 is an open end, the two side walls 142 are provided with hinge holes 143, the top wall 141 extends downward to form a limiting blocking piece 144, one side of the limiting blocking piece 144 facing the open end is a first limiting edge 1441, the limiting blocking piece 144 and the two side walls 142 are parallel and spaced, when the flip 14 is hinged to the circular convex columns 151 of the two support arms 15 through the hinge holes 143 of the two side walls 142, the top wall 141 of the flip 14 is fastened to the front end of the first adapter 100d body, the first limiting blocking edge 1441 of the limiting blocking piece 144 abuts against the first end surface 29 of the front portion of the adapter 100d body to generate interference fit, and thus the flip 14 is stably fastened to the front end of the first adapter 100d body.

The specific installation manner of this embodiment can refer to embodiment 2, since there is a difference between the first position-limiting portion 1c and the first driving arm connecting portion 200a, only the position-limiting fit between the first position-limiting portion 1c and the first driving arm connecting portion 200a is described, when the first position-limiting portion 1c of the first adapter 100d is in the first working state, the flip 14 is turned outwards, the flip 14 does not interfere with the front end of the first driving arm connecting portion 200a, and thus the forward displacement of the first driving arm connecting portion 200a relative to the first adapter 100d cannot be limited; when the first position-limiting part 1c of the first adapter 100d is in the second working state, the flip 14 is firmly fastened to the front end of the body of the first adapter 100d and abuts against the front end surface of the first driving arm connecting part 200a, so as to limit the forward displacement of the first driving arm connecting part 200a relative to the first adapter 100 d. Of course, there are various structures for the way of fastening the flip 14 to the front end of the first adapter 100d, and the structure is not limited to the specific structure disclosed in the embodiment.

The following is a detailed description of an adapter for connecting the second driving arm connecting portion 200 b:

as shown in fig. 2-1, the second driving arm connecting portion 200b is a U-shaped groove member formed by two side walls and a top wall, the bottoms of the two side walls are a pair of second limiting clamping strips 204 hooked towards the inside, the front end of at least one of the second limiting clamping strips 204 is provided with a second limiting clamping point 205 extending inwards, and the top wall is provided with a limiting through hole 201b.

Specific examples of the second adapter connected to the second driving arm connecting portion 200 b:

example 5:

as shown in fig. 4-1 to 4-4, although the second adaptor 100e is used for adapting the second driving arm connecting portion 200B, the structural features of the second adaptor 100e related to the top wall B can refer to the foregoing embodiments 1 and 2, but this embodiment is further optimized for the bump 3, namely, the height of the bump 3 is greater than the thickness of the top wall of the second driving arm connecting portion 200B, and the bump 3 extends upward, and the top portion thereof has a bending portion 31 extending toward the front end of the second adaptor 100e, although this part of the optimized design can be transplanted to the foregoing and later-described embodiments of the respective adaptors, and by the arrangement of the bending portion 31, the bump 3 can be matched with the limiting through

holes

201a,201b of the driving

arm connecting portions

200a,200b in an embedded manner, the bending portion 31 abuts against the top wall of the driving

arm connecting portions

200a,200b, and the relative movement of the respective adaptors and the driving

arm connecting portions

200a,200b in the vertical direction can be further limited.

The most important difference between the second adapter 100e and the embodiments 1 and 2 lies in the second limiting portion 2c, which specifically is: a third positioning reference part 23 and a fourth positioning reference part 24 are respectively arranged on two side walls a of the second adapter 100e from front to back, a fourth positioning reference surface 241 is horizontally arranged at the bottom of the fourth positioning reference part 24, a second relief part 25 for inserting the second limit clamping strip 204 is formed between the third positioning reference part 23 and the fourth positioning reference part 24, a third relief part 26 is arranged at the second relief part 25 and opposite to the second limit clamping point 205 of the second driving arm connecting part 200b, a more optimized design is that a flared part 261 convenient for the second limit clamping point 205 to slide in is arranged at the top of the third relief part 26, meanwhile, the thickness of the side wall a in the area is reduced due to the longer length of the second relief part 25, a plurality of exposed reinforcing ribs 252 are arranged on the side wall a in the area to ensure the structural strength of the side wall a in the area, and the exposed reinforcing ribs 252 are formed by a closed circular ring and four straight rods extending outwards from the parts of the closed circular ring in the circumferential direction at 90 degrees; a third positioning reference surface 251 is provided at the bottom of the second positioning portion 25 and at a position adjacent to the third positioning portion 26, and since the outer end surfaces of the third positioning reference portion 23 and the fourth positioning reference portion 24 are directly abutted against the inner side wall of the second driving arm connecting portion 200b, the outer end surfaces of the third positioning reference portion 23 and the fourth positioning reference portion 24 need to ensure necessary processing accuracy, and the second driving arm connecting portion 200b is prevented from shaking in the width direction relative to the second adapter 100e after installation; meanwhile, a necking portion 28 with a tapered width is provided at the rear end of the second adaptor 100e, and is set up to match the driving arm connection portion provided with a bent belt, such as the bent portion C of the second driving arm connection portion 200b shown in fig. 4-1, so as to avoid interference with the inner wall of the second driving arm connection portion 200b in the region of the bent portion C, and the structure of the necking portion 28 is designed on the body structure of any one of the adaptors described above or described below.

The specific installation mode is as follows: as shown in fig. 4-5, the second driving arm connecting portion 200b is located at the upper end of the second adapter 100e, the second limiting clamping point 205 and the second limiting clamping strip 204 thereof are respectively opposite to the third positioning portion 26 and the second positioning portion 25, when the second driving arm connecting portion 200b is sleeved outside the second adapter 100e from top to bottom, the outer side surfaces of the third positioning reference portion 23 and the fourth positioning reference portion 24 thereof are abutted against and matched with the inner side wall of the second driving arm connecting portion 200b, the inner top wall of the second driving arm connecting portion 200b is abutted against the convex point 12 of the elastic cantilever 11 and drives the elastic cantilever 11 thereof to press down, and at this time, the first limiting portion 1a of the second adapter 100e is in the first working state; then, the driving arm connecting portion 200b is displaced from front to back relative to the second adapter 100e until the bump 3 is in limit abutment with the front end of the limit through hole 201b of the second driving arm connecting portion 200b, at this time, the second limit clamping point 205 and the second limit clamping strip 204 are respectively slid onto the third positioning reference surface 251 at the bottom end of the second positioning portion 25 and the fourth positioning reference surface 241 at the bottom end of the fourth positioning reference portion 24 and are in abutment with each other, so as to limit the upward displacement of the second driving arm connecting portion 200b relative to the second adapter 100e along the vertical direction.

Example 6:

as shown in fig. 4-6 and 4-7, the basic structure of the second adapter 100f is substantially the same as that of embodiment 5, including the arrangement of the second limiting portion 2c, and the protrusion 3 and the hollow portion 4 disposed on the top wall B of the body thereof, only the difference between the first limiting portion 1B and embodiment 5 is related, that is, the specific structure of the first limiting portion 1B is limited by the sliding cover 13, the specific matching relationship between the sliding cover 13 and the second adapter 100f can refer to the matching manner of embodiment 3, and only the arrangement of the groove 133 is related, this embodiment is directly disposed at the front end of the side wall a of the second adapter 100f instead of the positioning portion 16, in fact, the concept that the side wall a and the positioning portion 16 are both opposite, that is, that if the positioning portion 16 of embodiment 3 is understood as a part of the side wall a, the first positioning reference portion 21 and the second positioning reference portion 22 can also be a part of the side wall a, and the first letting portion 230 is a reference portion that the side wall a is disposed between the first positioning portion 21 and the second positioning portion 22, and the first positioning reference portion is not limited by the name of the groove 21 e, and the arrangement of the first letting portion 230 can be disposed at the front end portion of the sliding chute 100e, and the first letting portion can be disposed along the sliding groove.

In a specific installation manner, the first position-limiting part 1b of the first adapter 100f and the second driving arm connecting part 200b are in position-limiting engagement with reference to example 3, and the second position-limiting part 2c of the first adapter and the second driving arm connecting part 200b are in position-limiting engagement with reference to example 5, which will not be described again.

Example 7:

as shown in fig. 4-8 to fig. 4-10, the basic structure of the second adapter 100g is substantially the same as that of embodiment 5, and includes the arrangement of the second limiting portion 2c, the bump 3 and the hollow portion 4 arranged on the top wall B of the body thereof, which only relates to the difference between the first limiting portion 1c and embodiment 5, and the specific structure of the first limiting portion 1c can refer to embodiment 4, that is, the first limiting portion 1c adopts the structure of the flip 14 to realize the limiting fit with the second driving arm 200B, and the specific installation manner thereof can also refer to the description of embodiment 5 and embodiment 5, and will not be described again.

The present invention further discloses a windshield wiper manufactured by using the above adapters, and since the connection relationship between each adapter and the windshield wiper assembly is consistent, only the fifth embodiment of the adapter is taken as an example to illustrate the structure of the windshield wiper using the adapter, as shown in fig. 5, the windshield wiper 300 is a boneless windshield wiper, and comprises a windshield wiper assembly made of a windshield wiper rubber strip 303, a flow guide sheath 302 and a spring sheet (not shown), a pivot connection seat 301 is fixedly arranged on the windshield wiper support, and the adapter 100e is mutually pivoted with the pivot connection seat through a convex shaft 101 arranged at the inner end of the side wall a thereof, so as to ensure that the adapter 100e is arranged on the pivot connection seat in a way of being capable of swinging up and down along the length direction of the windshield wiper assembly.

Claims

1. An adapter as a connection between a wiper assembly and an actuator arm, the actuator arm being provided at a front end thereof with an actuator arm connection (200a, 200b), the actuator arm connection (200a, 200b) being a U-shaped channel member having at least one through-hole (201a, 201b) at a top thereof, said adapter (100a, 100b,100c,100d,100e,100f, 100g) comprising a body formed by at least two side walls a and a top wall B, the side walls a being provided with a pivot connection (101), by means of which pivot connection (101) the adapter (100a, 100b,100c,100d,100e,100f, 100g) can be swung clockwise or counterclockwise about the pivot connection (101), said adapter (100a, 100b,100c,100d,100e,100f, 100g) being adapted to be embedded in the actuator arm connection (200a, 200b) with the side walls a and the top wall B serving as bearing surfaces for the actuator arm connection (200a, 200b), characterized in that: at the front end of the adapter (100a, 100b,100c,100d,100e,100f, 100g) a first stop portion (1a, 1b, 1c) is provided for limiting the forward displacement of the drive arm connection relative to the adapter (100a, 100b,100c,100d,100e,100f, 100g), at the two side walls A of the adapter (100a, 100b,100c,100d,100e,100f, 100g) a second stop portion (2a, 2b, 2c) is provided for limiting the upward displacement of the drive arm connection relative to the adapter (100a, 100b,100c,100d,100e,100f, 100g), a bump (3) without elastic deformation is arranged on the top wall B of the adapter (100a, 100b,100c,100d,100e,100f and 100g) and at a position corresponding to the top limit through hole (201a, 201b) of the driving arm connecting part (200a, 200b), the length X1 of the bump (3) is less than the length X2 of the limit through hole (201a, 201b) of the driving arm connecting part (200a, 200b), and the first limit part (1a, 1b, 1c) can realize the switching of two working states;

when the driving arm connecting part (200a, 200b) is sleeved at the outer end of the adapter (100a, 100b,100c,100d,100e,100f and 100g) from top to bottom, the lug (3) is arranged in the limit through hole (201a, 201b) at the moment, the first limit part (1a, 1b and 1c) is in a first working state, and the first limit part (1a, 1b and 1c) cannot limit the forward displacement of the driving arm connecting part relative to the adapter (100a, 100b,100c,100d,100e,100f and 100g); when the drive arm connecting part (200a, 200b) is displaced from the front to the back relative to the adapter (100a, 100b,100c,100d,100e,100f, 100g) until the lug (3) and the limiting through hole (201a, 201b) abut against each other, the drive arm connecting part (200a, 200b) cannot be displaced from the adapter (100a, 100b,100c,100d,100e,100f, 100g) to the back, and the first limiting part (1a, 1b, 1c) is in the second working state, and the first limiting part (1a, 1b, 1c) limits the drive arm connecting part (200a, 200b) from being displaced from the adapter (100a, 100b,100c,100d,100e,100f, 100g) to the front.

2. The adapter of claim 1, wherein: the top wall B of the adapters (100a, 100b,100c,100d,100e,100f, 100g) is provided with a hollowed-out part (4) at a position opposite to the pivot connection (101), the hollowed-out part (4) providing a space for relief for the adapters (100a, 100b,100c,100d,100e,100f, 100g) to swing up and down along the length direction thereof with the pivot connection (101) as a rotation fulcrum.

3. The adapter of claim 1, wherein: the height of the lug (3) is larger than the thickness of the top wall of the driving arm connecting part (200a, 200b), and the top of the lug (3) is provided with a bending part (31) extending towards the front end of the adapter (100a, 100b,100c,100d,100e,100f, 100g).

4. An adapter as claimed in any one of claims 1 to 3, wherein:

the first limiting part (1 a) of the adapter (100a, 100b, 100e) is provided with an elastic cantilever (11) at the front end of the top wall B and along the length direction thereof, and the free end of the elastic cantilever (11) is provided with a convex point (12);

when the driving arm connecting parts (200a, 200b) are sleeved at the outer ends of the adapters (100a, 100b, 100e) from top to bottom, the front ends of the inner top walls of the driving arm connecting parts (200a, 200b) press the convex points (12) downwards to drive the elastic cantilevers (11) to bend downwards to be in a first working state, the convex points (3) of the adapters (100a, 100b) can be arranged in the limiting through holes (201a, 201b), when the driving arm connecting parts (200a, 200b) are displaced from front to back relative to the adapters (100a, 100b, 100e) until the convex points (3) and the limiting through holes (201a, 201b) are abutted against each other, the elastic cantilevers (11) rebound to form a second working state, the convex points (12) of the elastic cantilevers (11) abut against the front ends of the top walls of the driving arm connecting parts (200a, 200b), and the forward displacement of the connecting parts (200a, 200b) relative to the adapters (100a, 100b, 100e) is limited.

5. An adapter as claimed in any one of claims 1 to 3, wherein: the first limiting part (1B) of the adapter (100c, 100f) comprises an elastic cantilever (11 a) and a sliding cover (13), the elastic cantilever (11 a) is positioned at the front end of the top wall B of the adapter (100c, 100f) body and arranged along the length direction of the elastic cantilever, a convex point (12 a) is arranged at the free end of the elastic cantilever (11 a), the sliding cover (13) is of a cover body structure, one side of the sliding cover (13) facing the elastic cantilever (11 a) is provided with an opening end, the top of the sliding cover is provided with a positioning hole (131), and the sliding cover (13) can be buckled to the front end part of the adapter (100c, 100f) body and can reciprocate along the length direction of the adapter (100c, 100f) body;

when the first limiting part (1 b) of the adapter (100c, 100f) is in a first working state, the sliding cover (13) is positioned at a position far away from the front end part of the adapter (100c, 100f) body, the positioning hole (131) and the convex point (12 a) of the adapter (100c, 100f) are separated from each other, the driving arm connecting part (200a, 200b) is sleeved at the outer end of the adapter (100c, 100f) from top to bottom, the driving arm connecting part (200a, 200b) cannot interfere with the sliding cover (13), and the convex block (3) of the adapter (100c, 100f) can be placed in the limiting through hole (201a, 201b); the driving arm connecting parts (200a, 200b) are displaced from front to back relative to the adapters (100c, 100f) until the lug (3) and the limiting through hole (201 a) are abutted against each other, then the first limiting parts (1 b) of the adapters (100c, 100f) are adjusted to be in a second working state, the sliding covers (13) are displaced from front to back relative to the adapters (100c, 100f), the positioning holes (131) and the lugs (12 a) are mutually nested and matched, at the moment, the end surfaces of the sliding covers (13) facing one sides of the driving arm connecting parts (200a, 200b) are abutted against the front end surfaces of the driving arm connecting parts (200a, 200b), and the driving arm connecting parts (200a, 200b) are limited from being displaced forwards relative to the adapters (100c, 100f).

6. The adapter of claim 5, wherein: the two inner side walls of the sliding cover (13) are respectively provided with a horizontal guide convex strip (132), one side of each guide convex strip (132) adjacent to the open end of the sliding cover (13) is provided with a barb (1321), two side walls A of the front end of the adapter (100c, 100f) are provided with grooves (133) at positions corresponding to the guide convex strips (132), and a limiting block (1331) is arranged at the front end of the adapter (100c, 100f) in each groove (133); the sliding cover (13) can slide back and forth relative to the adapters (100c, 100f) by the matching of the guide convex strip (132) and the groove (133), when the sliding cover (13) slides towards the direction far away from the convex point (12 a) of the elastic cantilever (11 a) until the barb (1321) abuts against the limiting block (1331), at the moment, the first limiting part (1 b) of the adapters (100c, 100f) is in a first working state, and the sliding cover (13) can not abut against and match with the connecting parts (200a, 200b) of the driving arms; when the sliding cover (13) slides towards the direction approaching to the convex point (12 a) of the elastic cantilever (11 a) and the convex point (12 a) is mutually nested and matched through the positioning hole (131), at the moment, the first limiting part (1 b) of the adapter (100c, 100f) is in a second working state, the sliding cover (13) and the front end surface of the driving arm connecting part (200a, 200b) are mutually abutted, and the driving arm connecting part (200a, 200b) is limited to move forwards relative to the adapter (100c, 100f).

7. The adapter of claim 4, wherein: the fixed end of the elastic cantilever (11, 11a) is arranged at the front end of the top wall B of the adapter body (100a, 100b,100c, 100f), and the salient point (12, 12a) is provided with a first guide inclined surface (121, 121a) at the side facing the fixed end.

8. The adapter of claim 5, wherein: the fixed end of the elastic cantilever (11, 11a) is arranged at the front end of the top wall B of the adapter body (100a, 100b,100c, 100f), and the salient point (12, 12a) is provided with a first guide inclined surface (121, 121a) at the side facing the fixed end.

9. The adapter of claim 6, wherein: the fixed end of the elastic cantilever (11, 11a) is arranged at the front end of the top wall B of the adapter body (100a, 100b,100c, 100f), and the convex point (12, 12a) is provided with a first guide inclined surface (121, 121a) at the side facing the fixed end.

10. An adapter as claimed in any one of claims 1 to 3, wherein: the first limiting part (1 c) of the adapter (100d, 100g) comprises a flip (14), and the flip (14) is hinged to the front end of the adapter (100d, 100g) body; when the first limiting part (1 c) of the adapter (100d, 100g) is in a first working state, the turnover cover (14) is turned outwards, the turnover cover (14) cannot interfere with the front end of the driving arm connecting part (200a, 200b), and therefore the driving arm connecting part (200a, 200b) cannot be limited to move forwards relative to the adapter (100d, 100g); when the first limiting part (1 c) of the adapter (100d, 100g) is in the second working state, the flip cover (14) is firmly buckled to the front end of the adapter (100d, 100g) body and is abutted against the front end surface of the driving arm connecting part (200a, 200b) to limit the forward displacement of the driving arm connecting part (200a, 200b) relative to the adapter (100d, 100g).

11. The adapter of claim 4, wherein: when the driving arm connecting part is a first driving arm connecting part (200 a), the bottoms of the two side walls of the first driving arm connecting part (200 a) are respectively provided with a pair of first limiting clamping points (202) and first limiting clamping strips (203) which are hooked inwards at intervals from front to back; the adapters matched with the first driving arm connecting portion (200 a) are defined as first adapters (100a, 100b,100c and 100 d), the second limiting portions (2a and 2b) of the first adapters (100a, 100b,100c and 100 d) are respectively provided with a first positioning reference portion (21) and a second positioning reference portion (22) which are arranged at intervals and are outwards protruded on two side walls A, the bottom of the first positioning reference portion (21) and the bottom of the second positioning reference portion (22) are respectively provided with a first positioning reference surface (211) and a second positioning reference surface (221) in a protruding mode, the horizontal length of a first yielding portion (230) is larger than the length of a first limiting clamping strip (203), when the first positioning reference portion (21 a) is sleeved on the outer side of the first adapters (100a, 100b,100c and 100 d), the first positioning portion (21) and the second positioning reference portion (22) are abutted against the first limiting clamping portion (100a, 100c and 100 d), and the first positioning reference portion (100a, 100b,100c and the second positioning reference portion (22) are abutted against the first limiting clamping portion (203) from top to the first limiting clamping portion (200 a) from top to the top of the first positioning reference portion (100a, so as to limit the first positioning reference portion (100b, the first positioning reference portion (21 a, 221) and the second positioning reference portion (21 a, and the second positioning reference portion (21 b, and the second positioning reference portion (22) to be abutted against the first limiting clamping portion, respectively.

12. The adapter of claim 5, wherein: when the driving arm connecting part is a first driving arm connecting part (200 a), the bottoms of the two side walls of the first driving arm connecting part (200 a) are respectively provided with a pair of first limiting clamping points (202) and first limiting clamping strips (203) which are hooked inwards at intervals from front to back; the adapters matched with the first driving arm connecting portion (200 a) are defined as first adapters (100a, 100b,100c and 100 d), the second limiting portions (2a and 2b) of the first adapters (100a, 100b,100c and 100 d) are respectively provided with a first positioning reference portion (21) and a second positioning reference portion (22) which are arranged at intervals in an outwards protruding mode on two side walls A, the bottom portions of the first positioning reference portion (21) and the second positioning reference portion (22) are respectively provided with a first positioning reference surface (211) and a second positioning reference surface (221) in a horizontal mode, the horizontal length of a first positioning portion (230) is larger than the length of a first limiting clamping strip (203), when the first positioning connecting portion (200 a) is sleeved on the outer side of the first adapters (100a, 100b, driving arms 100c and 100 d), the first positioning portion (21) and the second positioning portion (22) are abutted against the inner side walls (100a, 100b,100c and 100 d) of the first positioning reference portion (100a), and the first positioning reference portion (100a, 100b), the second positioning reference portion (100 c and the second positioning reference portion (22) are abutted against the first positioning portion (200 a, the inner side walls (100a, 221) and the first positioning reference portion (100a) and the second positioning reference portion (221) in a, so as to be abutted against the first positioning reference portion, and the inner side walls A) in the first positioning reference portion, so as to be positioned on the first positioning reference portion (100a, and the outer side walls A, respectively.

13. The adapter of claim 6, wherein: when the driving arm connecting part is a first driving arm connecting part (200 a), the bottoms of the two side walls of the first driving arm connecting part (200 a) are respectively provided with a pair of inward-hooked first limiting clamping points (202) and first limiting clamping strips (203) at intervals from front to back; the adapters matched with the first driving arm connecting portion (200 a) are defined as first adapters (100a, 100b,100c and 100 d), the second limiting portions (2a and 2b) of the first adapters (100a, 100b,100c and 100 d) are respectively provided with a first positioning reference portion (21) and a second positioning reference portion (22) which are arranged at intervals and are outwards protruded on two side walls A, the bottom of the first positioning reference portion (21) and the bottom of the second positioning reference portion (22) are respectively provided with a first positioning reference surface (211) and a second positioning reference surface (221) in a protruding mode, the horizontal length of a first yielding portion (230) is larger than the length of a first limiting clamping strip (203), when the first positioning reference portion (21 a) is sleeved on the outer side of the first adapters (100a, 100b,100c and 100 d), the first positioning portion (21) and the second positioning reference portion (22) are abutted against the first limiting clamping portion (100a, 100c and 100 d), and the first positioning reference portion (100a, 100b,100c and the second positioning reference portion (22) are abutted against the first limiting clamping portion (203) from top to the first limiting clamping portion (200 a) from top to the top of the first positioning reference portion (100a, so as to limit the first positioning reference portion (100b, the first positioning reference portion (21 a, 221) and the second positioning reference portion (21 a, and the second positioning reference portion (21 b, and the second positioning reference portion (22) to be abutted against the first limiting clamping portion, respectively.

14. The adapter of claim 7, wherein: when the driving arm connecting part is a first driving arm connecting part (200 a), the bottoms of the two side walls of the first driving arm connecting part (200 a) are respectively provided with a pair of first limiting clamping points (202) and first limiting clamping strips (203) which are hooked inwards at intervals from front to back; the adapters matched with the first driving arm connecting portion (200 a) are defined as first adapters (100a, 100b,100c and 100 d), the second limiting portions (2a and 2b) of the first adapters (100a, 100b,100c and 100 d) are respectively provided with a first positioning reference portion (21) and a second positioning reference portion (22) which are arranged at intervals in an outwards protruding mode on two side walls A, the bottom portions of the first positioning reference portion (21) and the second positioning reference portion (22) are respectively provided with a first positioning reference surface (211) and a second positioning reference surface (221) in a horizontal mode, the horizontal length of a first positioning portion (230) is larger than the length of a first limiting clamping strip (203), when the first positioning connecting portion (200 a) is sleeved on the outer side of the first adapters (100a, 100b, driving arms 100c and 100 d), the first positioning portion (21) and the second positioning portion (22) are abutted against the inner side walls (100a, 100b,100c and 100 d) of the first positioning reference portion (100a), and the first positioning reference portion (100a, 100b), the second positioning reference portion (100 c and the second positioning reference portion (22) are abutted against the first positioning portion (200 a, the inner side walls (100a, 221) and the first positioning reference portion (100a) and the second positioning reference portion (221) in a, so as to be abutted against the first positioning reference portion, and the inner side walls A) in the first positioning reference portion, so as to be positioned on the first positioning reference portion (100a, and the outer side walls A, respectively.

15. The adapter of claim 8, wherein: when the driving arm connecting part is a first driving arm connecting part (200 a), the bottoms of the two side walls of the first driving arm connecting part (200 a) are respectively provided with a pair of first limiting clamping points (202) and first limiting clamping strips (203) which are hooked inwards at intervals from front to back; the adapters matched with the first driving arm connecting portion (200 a) are defined as first adapters (100a, 100b,100c and 100 d), the second limiting portions (2a and 2b) of the first adapters (100a, 100b,100c and 100 d) are respectively provided with a first positioning reference portion (21) and a second positioning reference portion (22) which are arranged at intervals in an outwards protruding mode on two side walls A, the bottom portions of the first positioning reference portion (21) and the second positioning reference portion (22) are respectively provided with a first positioning reference surface (211) and a second positioning reference surface (221) in a horizontal mode, the horizontal length of a first positioning portion (230) is larger than the length of a first limiting clamping strip (203), when the first positioning connecting portion (200 a) is sleeved on the outer side of the first adapters (100a, 100b, driving arms 100c and 100 d), the first positioning portion (21) and the second positioning portion (22) are abutted against the inner side walls (100a, 100b,100c and 100 d) of the first positioning reference portion (100a), and the first positioning reference portion (100a, 100b), the second positioning reference portion (100 c and the second positioning reference portion (22) are abutted against the first positioning portion (200 a, the inner side walls (100a, 221) and the first positioning reference portion (100a) and the second positioning reference portion (221) in a, so as to be abutted against the first positioning reference portion, and the inner side walls A) in the first positioning reference portion, so as to be positioned on the first positioning reference portion (100a, and the outer side walls A, respectively.

16. The adapter of claim 9, wherein: when the driving arm connecting part is a first driving arm connecting part (200 a), the bottoms of the two side walls of the first driving arm connecting part (200 a) are respectively provided with a pair of first limiting clamping points (202) and first limiting clamping strips (203) which are hooked inwards at intervals from front to back; the adapters matched with the first driving arm connecting portion (200 a) are defined as first adapters (100a, 100b,100c and 100 d), the second limiting portions (2a and 2b) of the first adapters (100a, 100b,100c and 100 d) are respectively provided with a first positioning reference portion (21) and a second positioning reference portion (22) which are arranged at intervals in an outwards protruding mode on two side walls A, the bottom portions of the first positioning reference portion (21) and the second positioning reference portion (22) are respectively provided with a first positioning reference surface (211) and a second positioning reference surface (221) in a horizontal mode, the horizontal length of a first positioning portion (230) is larger than the length of a first limiting clamping strip (203), when the first positioning connecting portion (200 a) is sleeved on the outer side of the first adapters (100a, 100b, driving arms 100c and 100 d), the first positioning portion (21) and the second positioning portion (22) are abutted against the inner side walls (100a, 100b,100c and 100 d) of the first positioning reference portion (100a), and the first positioning reference portion (100a, 100b), the second positioning reference portion (100 c and the second positioning reference portion (22) are abutted against the first positioning portion (200 a, the inner side walls (100a, 221) and the first positioning reference portion (100a) and the second positioning reference portion (221) in a, so as to be abutted against the first positioning reference portion, and the inner side walls A) in the first positioning reference portion, so as to be positioned on the first positioning reference portion (100a, and the outer side walls A, respectively.

17. The adapter of claim 10, wherein: when the driving arm connecting part is a first driving arm connecting part (200 a), the bottoms of the two side walls of the first driving arm connecting part (200 a) are respectively provided with a pair of first limiting clamping points (202) and first limiting clamping strips (203) which are hooked inwards at intervals from front to back; the adapters matched with the first driving arm connecting portion (200 a) are defined as first adapters (100a, 100b,100c and 100 d), the second limiting portions (2a and 2b) of the first adapters (100a, 100b,100c and 100 d) are respectively provided with a first positioning reference portion (21) and a second positioning reference portion (22) which are arranged at intervals and are outwards protruded on two side walls A, the bottom of the first positioning reference portion (21) and the bottom of the second positioning reference portion (22) are respectively provided with a first positioning reference surface (211) and a second positioning reference surface (221) in a protruding mode, the horizontal length of a first yielding portion (230) is larger than the length of a first limiting clamping strip (203), when the first positioning reference portion (21 a) is sleeved on the outer side of the first adapters (100a, 100b,100c and 100 d), the first positioning portion (21) and the second positioning reference portion (22) are abutted against the first limiting clamping portion (100a, 100c and 100 d), and the first positioning reference portion (100a, 100b,100c and the second positioning reference portion (22) are abutted against the first limiting clamping portion (203) from top to the first limiting clamping portion (200 a) from top to the top of the first positioning reference portion (100a, so as to limit the first positioning reference portion (100b, the first positioning reference portion (21 a, 221) and the second positioning reference portion (21 a, and the second positioning reference portion (21 b, and the second positioning reference portion (22) to be abutted against the first limiting clamping portion, respectively.

18. The adapter of any of claims 11-17, wherein: when the front end of the top wall B of the first limiting part (1a, 1b) of the first adapter (100b, 100c) is provided with an elastic cantilever (11), the side wall a of the first adapter (100b, 100c) is provided with positioning parts (16) at intervals and convexly arranged at the front end of the first positioning reference part (21), a sliding groove (212) formed by a vertical section (2121) and an oblique section (2122) is formed between the positioning parts (16) and the first positioning reference part (21) from top to bottom, the oblique section (2122) of the sliding groove (212) is arranged from top to bottom in the direction away from the elastic cantilever (11), the second positioning reference part (22) forms a guide rib (222) from top to bottom on the end surface of one side facing the elastic cantilever (11), and the outline of the guide rib (222) is basically consistent with the outline of the sliding groove (212).

19. The adapter of claim 18, wherein: an abdicating space (223) which can be used for the backward displacement of the first limiting clamping strip (203) of the first driving arm connecting part (200 a) is formed between the bottom of the guide convex rib (222) and the second positioning reference surface (221).

20. The adapter of claim 4, wherein: when the driving arm connecting part is a second driving arm connecting part (200 b), the bottom parts of two side walls of the second driving arm connecting part (200 b) are provided with a pair of second limiting clamping strips (204) which are hooked towards the inner side, and the front end of at least one second limiting clamping strip (204) is provided with a second limiting clamping point (205) which extends inwards; the adapters matched with the second driving arm connecting part (200 b) are second adapters (100e, 100f and 100g), a second limiting part (2 c) of the second adapters (100e, 100f and 100g) is provided with a third positioning reference part (23) and a fourth positioning reference part (24) from front to back respectively for two side walls A, the bottom of the fourth positioning reference part (24) is horizontally provided with a fourth positioning reference surface (241), a second yielding part (25) for inserting the second limiting clamping strip (204) is formed between the third positioning reference part (23) and the fourth positioning reference part (24), and meanwhile, a third yielding part (26) is arranged at the second yielding part (25) and corresponding to the position of the second limiting clamping point (205) of the second driving arm connecting part (200 b); and a third positioning reference surface (251) is arranged at the bottom of the second containing part (25) and at a position adjacent to the third containing part (26), when the second driving arm connecting part (200 b) is sleeved outside the second adapter (100e, 100f,100 g) from top to bottom, the outer side surfaces of the third positioning reference part (23) and the fourth positioning reference part (24) and the inner side wall of the second driving arm connecting part (200 b) are mutually abutted and matched, and meanwhile, the second limiting clamping point (205) and the second limiting clamping strip (204) are respectively abutted against the corresponding third positioning reference surface (251) and the fourth positioning reference surface (241) in the vertical direction, so that the upward displacement of the second driving arm connecting part (200 b) relative to the second adapter (100e, 100f, 100g) is limited.

21. The adapter of claim 5, wherein: when the driving arm connecting part is a second driving arm connecting part (200 b), the bottom parts of two side walls of the second driving arm connecting part (200 b) are provided with a pair of second limiting clamping strips (204) which are hooked towards the inner side, and the front end of at least one second limiting clamping strip (204) is provided with a second limiting clamping point (205) which extends inwards; the adapters matched with the second driving arm connecting part (200 b) are second adapters (100e, 100f and 100g), a second limiting part (2 c) of the second adapters (100e, 100f and 100g) is provided with a third positioning reference part (23) and a fourth positioning reference part (24) from front to back respectively for two side walls A, the bottom of the fourth positioning reference part (24) is horizontally provided with a fourth positioning reference surface (241), a second yielding part (25) for inserting the second limiting clamping strip (204) is formed between the third positioning reference part (23) and the fourth positioning reference part (24), and meanwhile, a third yielding part (26) is arranged at the second yielding part (25) and corresponding to the position of the second limiting clamping point (205) of the second driving arm connecting part (200 b); and a third positioning reference surface (251) is arranged at the bottom of the second containing part (25) and at a position adjacent to the third containing part (26), when the second driving arm connecting part (200 b) is sleeved outside the second adapter (100e, 100f,100 g) from top to bottom, the outer side surfaces of the third positioning reference part (23) and the fourth positioning reference part (24) and the inner side wall of the second driving arm connecting part (200 b) are mutually abutted and matched, and meanwhile, the second limiting clamping point (205) and the second limiting clamping strip (204) are respectively abutted against the corresponding third positioning reference surface (251) and the fourth positioning reference surface (241) in the vertical direction, so that the upward displacement of the second driving arm connecting part (200 b) relative to the second adapter (100e, 100f, 100g) is limited.

22. The adapter of claim 6, wherein: when the driving arm connecting part is a second driving arm connecting part (200 b), the bottom parts of two side walls of the second driving arm connecting part (200 b) are provided with a pair of second limiting clamping strips (204) which are hooked towards the inner side, and the front end of at least one second limiting clamping strip (204) is provided with a second limiting clamping point (205) which extends inwards; the adapters matched with the second driving arm connecting part (200 b) are second adapters (100e, 100f and 100g), a second limiting part (2 c) of the second adapters (100e, 100f and 100g) is provided with a third positioning reference part (23) and a fourth positioning reference part (24) from front to back respectively for two side walls A, the bottom of the fourth positioning reference part (24) is horizontally provided with a fourth positioning reference surface (241), a second yielding part (25) for inserting a second limiting clamping strip (204) is formed between the third positioning reference part (23) and the fourth positioning reference part (24), and meanwhile, a third yielding part (26) is arranged at the second yielding part (25) and corresponding to the position of a second limiting clamping point (205) of the second driving arm connecting part (200 b); the bottom of the second containing part (25) and the position adjacent to the third containing part (26) are provided with a third positioning reference surface (251), when the second driving arm connecting part (200 b) is sleeved outside the second adapter (100e, 100f,100 g) from top to bottom, the outer side surfaces of the third positioning reference part (23) and the fourth positioning reference part (24) and the inner side wall of the second driving arm connecting part (200 b) are mutually abutted and matched, and meanwhile, the second limiting clamping point (205) and the second limiting clamping strip (204) are respectively abutted with the corresponding third positioning reference surface (251) and the fourth positioning reference surface (241) in the vertical direction, so that the upward displacement of the second driving arm connecting part (200 b) relative to the second adapter (100e, 100f, 100g) is limited.

23. The adapter of claim 7, wherein: when the driving arm connecting part is a second driving arm connecting part (200 b), the bottom parts of two side walls of the second driving arm connecting part (200 b) are provided with a pair of second limiting clamping strips (204) which are hooked towards the inner side, and the front end of at least one second limiting clamping strip (204) is provided with a second limiting clamping point (205) which extends inwards; the adapters matched with the second driving arm connecting part (200 b) are second adapters (100e, 100f and 100g), a second limiting part (2 c) of the second adapters (100e, 100f and 100g) is provided with a third positioning reference part (23) and a fourth positioning reference part (24) from front to back respectively for two side walls A, the bottom of the fourth positioning reference part (24) is horizontally provided with a fourth positioning reference surface (241), a second yielding part (25) for inserting a second limiting clamping strip (204) is formed between the third positioning reference part (23) and the fourth positioning reference part (24), and meanwhile, a third yielding part (26) is arranged at the second yielding part (25) and corresponding to the position of a second limiting clamping point (205) of the second driving arm connecting part (200 b); and a third positioning reference surface (251) is arranged at the bottom of the second containing part (25) and at a position adjacent to the third containing part (26), when the second driving arm connecting part (200 b) is sleeved outside the second adapter (100e, 100f,100 g) from top to bottom, the outer side surfaces of the third positioning reference part (23) and the fourth positioning reference part (24) and the inner side wall of the second driving arm connecting part (200 b) are mutually abutted and matched, and meanwhile, the second limiting clamping point (205) and the second limiting clamping strip (204) are respectively abutted against the corresponding third positioning reference surface (251) and the fourth positioning reference surface (241) in the vertical direction, so that the upward displacement of the second driving arm connecting part (200 b) relative to the second adapter (100e, 100f, 100g) is limited.

24. The adapter of claim 8, wherein: when the driving arm connecting part is a second driving arm connecting part (200 b), the bottom parts of two side walls of the second driving arm connecting part (200 b) are provided with a pair of second limiting clamping strips (204) which are hooked towards the inner side, and the front end of at least one second limiting clamping strip (204) is provided with a second limiting clamping point (205) which extends inwards; the adapters matched with the second driving arm connecting part (200 b) are second adapters (100e, 100f and 100g), a second limiting part (2 c) of the second adapters (100e, 100f and 100g) is provided with a third positioning reference part (23) and a fourth positioning reference part (24) from front to back respectively for two side walls A, the bottom of the fourth positioning reference part (24) is horizontally provided with a fourth positioning reference surface (241), a second yielding part (25) for inserting a second limiting clamping strip (204) is formed between the third positioning reference part (23) and the fourth positioning reference part (24), and meanwhile, a third yielding part (26) is arranged at the second yielding part (25) and corresponding to the position of a second limiting clamping point (205) of the second driving arm connecting part (200 b); the bottom of the second containing part (25) and the position adjacent to the third containing part (26) are provided with a third positioning reference surface (251), when the second driving arm connecting part (200 b) is sleeved outside the second adapter (100e, 100f,100 g) from top to bottom, the outer side surfaces of the third positioning reference part (23) and the fourth positioning reference part (24) and the inner side wall of the second driving arm connecting part (200 b) are mutually abutted and matched, and meanwhile, the second limiting clamping point (205) and the second limiting clamping strip (204) are respectively abutted with the corresponding third positioning reference surface (251) and the fourth positioning reference surface (241) in the vertical direction, so that the upward displacement of the second driving arm connecting part (200 b) relative to the second adapter (100e, 100f, 100g) is limited.

25. The adapter of claim 9, wherein: when the driving arm connecting part is a second driving arm connecting part (200 b), the bottoms of two side walls of the second driving arm connecting part (200 b) are provided with a pair of second limiting clamping strips (204) which are hooked towards the inner side, and the front end of at least one second limiting clamping strip (204) is provided with a second limiting clamping point (205) which extends inwards; the adapters matched with the second driving arm connecting part (200 b) are second adapters (100e, 100f and 100g), a second limiting part (2 c) of the second adapters (100e, 100f and 100g) is provided with a third positioning reference part (23) and a fourth positioning reference part (24) from front to back respectively for two side walls A, the bottom of the fourth positioning reference part (24) is horizontally provided with a fourth positioning reference surface (241), a second yielding part (25) for inserting a second limiting clamping strip (204) is formed between the third positioning reference part (23) and the fourth positioning reference part (24), and meanwhile, a third yielding part (26) is arranged at the second yielding part (25) and corresponding to the position of a second limiting clamping point (205) of the second driving arm connecting part (200 b); and a third positioning reference surface (251) is arranged at the bottom of the second containing part (25) and at a position adjacent to the third containing part (26), when the second driving arm connecting part (200 b) is sleeved outside the second adapter (100e, 100f,100 g) from top to bottom, the outer side surfaces of the third positioning reference part (23) and the fourth positioning reference part (24) and the inner side wall of the second driving arm connecting part (200 b) are mutually abutted and matched, and meanwhile, the second limiting clamping point (205) and the second limiting clamping strip (204) are respectively abutted against the corresponding third positioning reference surface (251) and the fourth positioning reference surface (241) in the vertical direction, so that the upward displacement of the second driving arm connecting part (200 b) relative to the second adapter (100e, 100f, 100g) is limited.

26. The adapter of claim 10, wherein: when the driving arm connecting part is a second driving arm connecting part (200 b), the bottom parts of two side walls of the second driving arm connecting part (200 b) are provided with a pair of second limiting clamping strips (204) which are hooked towards the inner side, and the front end of at least one second limiting clamping strip (204) is provided with a second limiting clamping point (205) which extends inwards; the adapters matched with the second driving arm connecting part (200 b) are second adapters (100e, 100f and 100g), a second limiting part (2 c) of the second adapters (100e, 100f and 100g) is provided with a third positioning reference part (23) and a fourth positioning reference part (24) from front to back respectively for two side walls A, the bottom of the fourth positioning reference part (24) is horizontally provided with a fourth positioning reference surface (241), a second yielding part (25) for inserting the second limiting clamping strip (204) is formed between the third positioning reference part (23) and the fourth positioning reference part (24), and meanwhile, a third yielding part (26) is arranged at the second yielding part (25) and corresponding to the position of the second limiting clamping point (205) of the second driving arm connecting part (200 b); the bottom of the second containing part (25) and the position adjacent to the third containing part (26) are provided with a third positioning reference surface (251), when the second driving arm connecting part (200 b) is sleeved outside the second adapter (100e, 100f,100 g) from top to bottom, the outer side surfaces of the third positioning reference part (23) and the fourth positioning reference part (24) and the inner side wall of the second driving arm connecting part (200 b) are mutually abutted and matched, and meanwhile, the second limiting clamping point (205) and the second limiting clamping strip (204) are respectively abutted with the corresponding third positioning reference surface (251) and the fourth positioning reference surface (241) in the vertical direction, so that the upward displacement of the second driving arm connecting part (200 b) relative to the second adapter (100e, 100f, 100g) is limited.

27. A wiper blade, characterized in that it comprises an adapter (100a, 100b,100c,100d,100e,100f, 100g) according to any one of claims 1 to 26, said adapter (100a, 100b,100c,100d,100e,100f, 100g) being adapted to effect the connection of the wiper assembly to the actuator arm.