阅读说明：本技术 一种适配器及雨刷 (Adapter and windshield wiper ) 是由 王书屋 于 2021-07-28 设计创作，主要内容包括：本发明揭示了一种适配器,其作为雨刷支架组件与驱动臂连接部之间的连接件,所述适配器包括纵向本体,所述纵向本体包括两个基本平行设置且由顶壁连接在一起的侧壁,该两侧壁设有枢轴连接部,所述限位凸块固接于顶壁上,所述纵向本体的前部形成一个供驱动臂连接部前端下摆的让位部；所述侧壁中后段形成一自前向后高度渐缩的让位段,且每所述侧壁底部端面在位于让位段的前端至少形成一段第一卡止面；所述纵向本体在位于第一卡止面的后端还分别增设一弹性件,该弹性件上设有第二卡止面,至少在弹性件未产生位置偏移时,该第二卡止面沿纵向方向与第一卡止面基本平齐。(The invention discloses an adapter which is used as a connecting piece between a windshield wiper support component and a driving arm connecting part, and comprises a longitudinal body, wherein the longitudinal body comprises two side walls which are basically arranged in parallel and connected together through a top wall, the two side walls are provided with pivot connecting parts, a limiting lug is fixedly connected to the top wall, and the front part of the longitudinal body forms a yielding part for the front end of the driving arm connecting part to swing downwards; the middle and rear sections of the side walls form a yielding section with gradually reduced height from front to back, and the bottom end surface of each side wall at the front end of the yielding section at least forms a first clamping surface; the longitudinal body is additionally provided with an elastic piece at the rear end of the first clamping surface, the elastic piece is provided with a second clamping surface, and the second clamping surface is basically flush with the first clamping surface along the longitudinal direction at least when the elastic piece does not generate position deviation.)

1. An adapter (1a, 1b, 1c, 1d) as a connection between a wiper blade carrier assembly and a drive arm connection (2a, 2b), which adapter (1a, 1b, 1c, 1d) comprises a longitudinal body comprising two substantially parallel side walls (11) and a top wall (12) lying between the side walls (11), which side walls (11) are provided with a pivot connection (13), by means of which pivot connection (13) the adapter (1a, 1b, 1c, 1d) is hingedly connected to the wiper blade carrier assembly, which side walls (11) and a top wall (12) are intended to be embedded in the drive arm connection (2a, 2b) as a bearing support surface for the corresponding position of the drive arm connection (2a, 2b), at least the top wall (12) of the adapter (1a, 1b, 1c, 1d) being provided with a bearing support surface for the built-in of the drive arm connection (2a, 2b), 2b) The spacing lug (14) of the spacing through-hole (23) department of upper wall (22), through the cooperation of putting of card between spacing lug (14) and the spacing through-hole (23) of actuating arm connecting portion (2a, 2b), thereby the production relative displacement along longitudinal direction of restriction actuating arm connecting portion (2a, 2b) and adapter (1a, 1b, 1c, 1d), its characterized in that: the limiting lug (14) is fixedly connected to the top wall (12); the front part of the longitudinal body forms a yielding part (E) for the lower swing of the front end of the connecting part (2a, 2b) of the driving arm; the middle and rear sections of the side walls (11) form a yielding section (A) with gradually reduced height from front to back, a yielding space (B) formed at the bottom of the yielding section (A) is used for inserting limit clamping parts (24a, 24B) of the driving arm connecting parts (2a, 2B), the rear ends of the driving arm connecting parts (2a, 2B) can be upwarped, a limit through hole (23) of the upper wall (22) of the driving arm connecting parts can be moved to the position above the limit bump (14), and the end surface of the bottom of each side wall (11) at least forms a section of first clamping surface (111) at the front end of the yielding section (A); the longitudinal body is additionally provided with an elastic piece (15) at the rear end of the first clamping surface (111), the elastic piece (15) is provided with a second clamping surface (151), and the second clamping surface (151) is basically flush with the first clamping surface (111) along the longitudinal direction at least when the elastic piece (15) is not displaced.

2. The adapter (1a, 1b, 1c, 1d) according to claim 1, characterized in that: the roof (12) of vertical body is by preceding to back including a height gradually high abdication inclined plane (122) and with abdication inclined plane (122) high-order (G) linking bear holding surface (121), bear holding surface (121) have the front end that is located pivot connecting portion (13) of partial area at least.

3. The adapter (1a, 1b, 1c, 1d) according to claim 2, characterized in that: the distance X between the high position (G) of the abdicating inclined plane (122) and the rotating axis of the pivot connecting part (13) along the longitudinal direction is not less than 4mm and not more than 7 mm.

4. The adapter (1a, 1b, 1c, 1d) according to claim 1, characterized in that: the bottom end face of the side wall (11a, 11b) yielding section (A) forms a yielding guide slope (112) with gradually-increased height from front to back, the first clamping face (111) is mutually communicated and connected with the lower phase of the yielding guide slope (112), and a prying part (F) is formed at the connecting part of the yielding guide slope (112) and the first clamping face (111).

5. The adapter (1a, 1b, 1c, 1d) according to claim 4, characterized in that: the high position (G) of the yielding part (E) is positioned at the front end of the prying part (F), and the shortest straight-line distance W1 from the high position (G) of the yielding part (E) to the prying part (F) is greater than the shortest straight-line distance W3 from the high position (G) of the yielding part (E) to the bottom end face of the first clamping surface (111).

6. An adapter (1c, 1d) according to claim 5, wherein: the side wall (11b) comprises an outer wall (113) and an inner wall (114) which are basically parallel to each other along the longitudinal direction, the outer wall (113) can generate certain elastic deformation inwards relative to the inner wall (114) along the lateral direction, the height of the inner wall (114) is larger than that of the outer wall (113), the bottom end surface of the middle and rear sections of the outer wall (113) forms a yielding guide slope (112) with gradually-increased height from front to back, and the bottom end surface of the outer wall (113) at least forms a section of first clamping surface (111) at the front end of the yielding guide slope (112).

7. The adapter (1c, 1d) according to claim 6, wherein: the connecting arms (115) between the outer wall (113) and the inner wall (114) enable the side wall (11b) to form a longitudinal member with a hollow inner cavity and a certain width through the outer wall (113), the inner wall (114) and the connecting arms (115), the outer wall (113) is provided with at least one connecting arm (115) which is connected with the inner wall (114) in the area of the first clamping surface (111), the height of the outer wall (113) in the area of the first clamping surface (111) is higher than that of the connecting arm (115), the height difference H formed between the first clamping surface (111) and the connecting arm (115) is larger than the shortest straight-line distance W1 between the high position (G) of the position yielding part (E) and the prying part (F), and the shortest straight-line distance W2 between the inner side end face of the upper wall (22) of the driving arm connecting parts (2a, 2b) and the upper inner walls of the limiting clamping parts (24a, 24b), the height difference H is convenient for the upper inner walls of the limiting clamping parts (24a and 24b) of the driving arm connecting parts (2a and 2b) to drive the prying part (F) to generate plastic deformation towards the end face of the bottom of the connecting arm (115).

8. The adapter (1a, 1b, 1c, 1d) according to claim 1, characterized in that: the elastic piece (15) is an elastic cantilever, the elastic cantilever (15) is arranged at the rear end of the top wall (12) of the position-giving section (A) and extends downwards along the two sides of the side direction, the distance M between the outer end faces of the rod body sections of the two elastic cantilevers (15) is smaller than the distance N between the outer end faces of the two side walls (11), a guide face (152) is formed at the upper end of the rod body section of the elastic cantilever (15) and the second clamping face (151), and when the limiting clamping parts (24a and 24b) of the driving arm connecting parts (2a and 2b) are abutted and contacted with the rod body section from top to bottom, the limiting clamping parts (24a and 24b) automatically drive the elastic cantilevers (15) to generate position deviation inwards.

9. The adapter (1a, 1b, 1c, 1d) according to claim 8, characterized in that: the rear end of the second clamping surface (151) is also provided with a vertical abutting surface (153) extending downwards.

10. The adapter (1b, 1c, 1d) according to claim 8, wherein: every elasticity cantilever (15) sets up along the outside interval of lateral direction and bears supporting part (C), should bear supporting part (C) and be located the top of second clamping face (151), and its one end links to each other with the rear end of lateral wall (11), and the other end rigid coupling is in the rear end of roof (12), and at least in the below of bearing supporting part (C) and the top of second clamping face (151) form the loading and unloading passageway (D) that supplies spacing joint portion (24a, 24b) that the inside was bent in actuating arm connecting portion (2a, 2b) both sides wall (21) bottom to insert, the outside terminal surface that bears supporting part (C) and the outside terminal surface parallel and level that corresponds lateral wall (11).

11. The adapter (1a, 1b, 1c, 1d) according to claim 8, characterized in that: the elastic cantilever (15) extends outwards along the lateral direction at the lower end of the second clamping surface (151) to form a pressing part (154), and the distance between the top surface of the pressing part (154) and the second clamping surface (151) is larger than or equal to the wall thickness of the limiting clamping parts (24a, 24b) of the driving arm connecting parts (2a, 2 b).

12. The adapter (1c, 1d) according to any of claims 1-11, wherein: the adapters (1c, 1d) are also provided with a protruding decorative cover (16) at the front end of the longitudinal body, and the decorative cover (16) is provided with a limit rib (161) matched with the front end surface profile of the driving arm connecting parts (2a, 2b) at least at one side facing the driving arm connecting parts (2a, 2 b).

13. The adapter (1d) according to claim 12, wherein: the adapter (1d) is additionally provided with an elastic stopping part (17) between the decorative cover (16) and the position yielding part (E), the elastic stopping part (17) at least forms a resisting surface (171), the resisting surface (171) is basically flush with the bearing and supporting surface (121) of the top wall (12), and the resisting surface (171) can generate position deviation forwards along the longitudinal direction.

14. A windshield wiper, its characterized in that: the wiper blade assembly comprises any one of the adapters (1a, 1b, 1c, 1d), wherein the adapters (1a, 1b, 1c, 1d) are used for realizing the connection between the wiper blade assembly and the connecting part (2a, 2b) of the driving arm.

Technical Field

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

Background

Different models are adapted with different wiper driving arms, such as the one disclosed in the patent publication CN103826939A (fig. 1-1, 1-2) which discloses a driving arm connecting part 2a, and a driving arm connecting part 2b as disclosed in patent publication CN210133087U (see FIG. 2-1 and FIG. 2-2), the common characteristics of the utility model are that the utility model is provided with a U-shaped groove component formed by the surrounding of an upper wall 22 and two side walls 21, the upper wall is provided with a limit through hole 23, and the bottom of the two side walls are formed with inward bent limit clamping parts 24a, 24b, and only the specific structural characteristics of the limit clamping parts 24a, 24b revealed by the two driving arm connecting parts 2a, 2b are different, the former limit clamping part 24a is a pair of inward bent first limit clamping strips 242a, at least the front end of one first limiting clamping strip 242a is provided with a first limiting clamping point 241a extending inwards; the latter limit clamping part 24b is a pair of inward-bent second limit clamping points 241b and second limit clamping strips 242b arranged from front to back at intervals; as shown in fig. 1-3 and 2-3, the adapters 1a 'and 1 b' disclosed in the two patent documents are each provided with a position-limiting fixture block 21a ', 12 b' on the top wall thereof, which can generate position deviation, and the position-limiting fixture blocks 21a ', 12 b' are nested and matched with the position-limiting through holes 23 of the corresponding driving arm connecting portions 2a, 2b in a limiting manner, so as to limit the relative displacement of the adapters 1a ', 1 b' and the corresponding driving arm connecting portions 2a, 2b along the longitudinal direction; the adapters 1a 'and 1 b' are mutually clamped and in limited fit with the limiting clamping parts 24a and 24b of the corresponding driving arm connecting parts 2a and 2b through the bottom edges of the two side walls of each adapter 1a 'and 1 b', so that the driving arm connecting parts 2a and 2b are limited from moving upwards relative to the adapters 1a 'and 1 b' matched with the driving arm connecting parts in the vertical direction; by adopting the structure, the adapters 1a 'and 1 b' have at least certain length along the longitudinal direction, so that the bottom edges of the two side walls have enough length for being mutually clamped with the limiting clamping parts 24a and 24b of the corresponding driving arm connecting parts 2a and 2 b; meanwhile, because the limiting clamping blocks 21a 'and 12 b' have elasticity, when the driving arm connecting portions 2a and 2b are connected with the wiper bracket assembly through the adapters 1a 'and 1 b' to wipe the windshield of the motor vehicle back and forth, the limiting clamping blocks 21a 'and 12 b' of the adapters 1a 'and 1 b' generate centrifugal force which is separated outwards relative to the limiting through holes 23 of the driving arm connecting portions 2a and 2b, and because the adapters 1a 'and 1 b' are mainly plastic pieces and the limiting clamping blocks 21a 'and 12 b' are arranged at the free ends of the elastic cantilevers, after a period of use, the elastic cantilevers are easy to age and lack resilience, and the limiting through holes 23 of the driving arm connecting portions 2a and 2b are easily separated from the limiting clamping blocks 21a 'and 12 b', so that the adapters 1a 'and 1 b' disclosed in the two patent documents are positioned between the limiting clamping blocks 21a 'and 12 b' 12b ' are also provided with a stop 23a ', 13b ', respectively, at the rear end, to further reduce the risk of disengagement of the drive arm connection 2a, 2b from the corresponding adapter 1a ', 1b '.

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.

To achieve the first object of the present invention, there is disclosed an adapter as a connecting member between a wiper blade support assembly and a driving arm connecting portion, the adapter comprises a longitudinal body comprising two substantially parallel arranged side walls connected together by a top wall, the two side walls are provided with pivot connection parts, the adapter is hinged and connected to the windshield wiper support component through the pivot connection parts, the two side walls and the top wall are embedded into the connecting part of the driving arm to serve as bearing and supporting surfaces at the corresponding position of the connecting part of the driving arm, at least the top wall of the adapter is provided with a limit bump which is arranged in a limit through hole on the upper wall of the connecting part of the driving arm, the limiting lug is fixedly connected to the top wall, and the limiting lug is clamped and matched with the limiting through hole of the driving arm connecting part, so that the driving arm connecting part and the adapter are limited to generate relative displacement along the longitudinal direction; the front part of the longitudinal body forms a yielding part for the lower swing of the front end of the connecting part of the driving arm; the middle and rear sections of the side walls form a yielding section with gradually reduced height from front to back, a yielding space formed at the bottom of the yielding section is used for inserting a limiting clamping part of a connecting part of the driving arm, the rear end of the connecting part of the driving arm can be upwarped, a limiting through hole on the upper wall of the connecting part of the driving arm can be moved to the position above a limiting lug, and the end surface of the bottom of each side wall at the front end of the yielding section at least forms a section of first clamping surface; the longitudinal body is additionally provided with an elastic piece at the rear end of the first clamping surface, the elastic piece is provided with a second clamping surface, and the second clamping surface is basically flush with the first clamping surface along the longitudinal direction at least when the elastic piece does not generate position deviation.

The term "longitudinal" is a direction corresponding to the extension of the adapter or drive arm along the length; "lateral" is the direction perpendicular to the "longitudinal" direction, which corresponds to the direction in which the adapter or drive arm extends along the width; the relative position relation of the front and the back corresponds to the distance between the adapter and the power end of the driving arm, the front is positioned at one side far away from the power end of the driving arm, the back is positioned at one side near the power end of the driving arm, and for the convenience of understanding, the relative positions of the front and the back related to the invention are consistent with the directions marked by the drawings in the specification.

And a driving arm connecting part which is arranged at the front end of the driving arm and is used as a connecting part for mutually and fixedly connecting the driving arm and the adapter.

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

"substantially parallel" is to be understood as: the two side walls enclose an angle which deviates from 0 ° by not more than 8 °, advantageously not more than 5 °, particularly advantageously not more than 2 °.

With the above arrangement, the limit projection of the adaptor is fixedly connected to the top wall, the drive arm connecting portion can be pressed down at the front end and tilted up at the rear end in the assembling process, so that the limit through hole on the upper wall of the drive arm connecting portion can be moved above the limit projection, thereby the limit through hole of the drive arm connecting portion is nested on the limit projection of the adaptor, the adaptor is limited relative to the drive arm connecting portion along the longitudinal direction, and meanwhile, the adapter is limited relative to the drive arm connecting portion along the vertical direction by the mutual abutting and matching of the first clamping surface and the second clamping surface of the adaptor with the front end and the rear end of the upper inner wall of the limit clamping portion of the drive arm connecting portion, thereby realizing the stable connection between the adaptor and the drive arm connecting portion, because the limit projection is not easy to generate the technical problems as disclosed in the background technology, greatly prolonging the service life of the adapter and simultaneously increasing the traffic safety.

Furthermore, the bottom end surface of the side wall abdicating section forms an abdicating guide slope with gradually-increased height from front to back, the first clamping surface is mutually communicated and connected with the lower phase of the abdicating guide slope, and a prying part is formed at the joint of the abdicating guide slope and the first clamping surface; the high position of the yielding part is positioned at the front end of the prying part, and the shortest straight-line distance W1 from the high position of the yielding part to the prying part is greater than the shortest straight-line distance W3 from the high position of the yielding part to the bottom end face of the first clamping surface.

Further, the lateral wall includes along vertical outer wall and the inner wall that is basically parallel to each other, and this outer wall can inwards produce certain elastic deformation along the lateral direction for the inner wall, the height that highly > the outer wall of inner wall, the bottom terminal surface of the well back end of outer wall forms a high gradually high direction of stepping down direction slope from preceding back, just the bottom terminal surface of outer wall forms one section first plane of stopping at least lieing in the direction slope front end of stepping down.

Furthermore, a plurality of connecting arms are arranged between the outer wall and the inner wall, the side walls form a longitudinal member with a hollow inner cavity and a certain width by the outer wall, the inner wall and the connecting arms, the outer wall is provided with at least one connecting arm which is connected with the inner wall in the area of the first clamping surface, the height of the outer wall in the area of the first clamping surface is higher than that of the connecting arm, a height difference H formed between the first clamping surface and the connecting arm, wherein the height difference H is larger than the shortest straight-line distance W1 from the high position of the relief part to the prying part, the shortest straight-line distance W2 from the inner side end surface of the upper wall of the connecting part of the driving arm to the upper inner wall of the limiting clamping part, the difference in height H is used for the last inner wall of spacing joint portion to order about sled portion and produce the plastic deformation towards linking arm bottom end face, is convenient for install the adapter to the actuating arm connecting portion in.

Furthermore, the adapter still forms a protruding decoration cover at the front end of vertical body, should decorate the cover and form the spacing bead that matches each other with the preceding terminal surface profile of actuating arm connecting portion at the one side that faces actuating arm connecting portion at least, the adapter still adds an elastic backstop portion between decorating the cover and stepping down the portion, and this elastic backstop portion forms the face of keeping off at least, and this face of keeping off is basically the parallel and level with the bearing support face of roof, and this face of keeping off can produce the offset forward along longitudinal direction. Through set up the face of keeping off in the region of the vertical body of adapter portion of stepping down to increase the support area that supports of leaning on of adapter and drive arm connecting portion upper wall medial surface, further promote the stability that both are connected.

In order to achieve the second object of the present invention, the present invention further discloses a windshield wiper, which comprises any one of the above-mentioned adapters, wherein the adapter is used for realizing the connection between the windshield wiper support assembly and the connecting part of the driving arm.

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:

figures 1-1 to 1-2 show perspective views at different angles of a first type of drive arm connection, as disclosed in the art;

fig. 1 to 3 are perspective views of an adapter 1 a' disclosed in patent document CN 103826939A;

figures 2-1 to 2-2 show perspective views of a second type of drive arm connection at different angles, as disclosed in the art;

fig. 2 to 3 are perspective views of an adapter 1 b' disclosed in patent document CN 210133087U;

FIG. 3-1 is a perspective view of a first embodiment of the disclosed adapter;

3-2 perspective view (another angle) of a first embodiment of the disclosed adapter;

3-3A perspective view of a first embodiment of the adapter disclosed herein with a load bearing support C added;

FIGS. 3-4 are perspective views of a first embodiment side wall optimization of the disclosed adapter;

FIGS. 3-5 are perspective views (at another angle) of the side wall optimization of the first embodiment of the disclosed adapter;

FIGS. 3-6 are top views of a first embodiment side wall optimization of the disclosed adapter;

FIGS. 3-7 are perspective views of a second embodiment of the disclosed adapter;

FIGS. 3-8 are cross-sectional views of the steps of FIGS. 3-7 taken along line I-I of the present invention;

fig. 3-9-3-12 are schematic views illustrating steps for mounting the first embodiment of the adapter and the driving arm connecting portion according to the present invention.

Detailed Description

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

The inventive concept of the adapter disclosed in the present invention can be used to match two different types of drive arm connection parts 2a, 2b mentioned in the background, and for simplicity of description, in the following description of the specific embodiment of the adapter, only the drive arm connection part 2a is described as an object (environmental characteristic) to be adaptively connected with the adapter.

As shown in fig. 3-1 and 3-2, an adapter 1a at least comprises two side walls 11a arranged in parallel and a top wall 12 arranged on top of the two side walls 11a, a longitudinal body extending in longitudinal direction is formed by enclosing the two side walls 11a and the top wall 12, in order to ensure the structural strength of the longitudinal body, a front end wall 18 is generally added at the front end portion of the two side walls 11a, the inner cavity of the longitudinal body is hollow, the two side walls 11a are respectively provided with a protruding shaft 13 extending inwards in opposite directions, the protruding shaft 13 is used as one of the specific embodiments of a pivot connection part, a pivot connection seat is fixedly arranged on the wiper blade support assembly, the pivot connection seat is provided with a pivot connection hole corresponding to the protruding shaft 13, a pivot connection relation (not shown) is formed by the protruding shaft 13 and the pivot connection hole, so that the adapter 1a can swing clockwise or counterclockwise by using the protruding shaft 13 as a rotation fulcrum, it should be noted that, if the respective bearing components of the protruding shaft 13 and the pivot holes are replaced, that is, the protruding shaft is disposed on the pivot connection seat, and the corresponding positions of the two side walls 11a of the adapter 1a are provided with the pivot holes (pivot connection portions), the pivot matching relationship between the adapter 1a and the pivot connection seat on the wiper support assembly can also be realized.

The rear end of the top wall 12 of the adapter 1a is convexly provided with a limit bump 14, which is different from the arrangement mode of the conventional limit bump, the conventional limit bump is generally arranged on an elastic cantilever to cause the elastic cantilever to generate position deviation, the limit bump 14 disclosed by the invention is fixedly connected on the top wall 12 and cannot generate position deviation relative to the top wall 12, when the limit through hole 23 of the driving arm connecting part 2a is mutually nested and matched with the limit bump 14, the limit bump 14 is not easy to be separated from the limit through hole 23 due to aging of the elastic cantilever, the service life of the adapter 1a is greatly prolonged, and meanwhile, the driving safety is also increased.

The side wall 11a may be a solid member (as shown in fig. 3-2), or a side wall 11b as shown in fig. 3-5, which is designed as a hollow longitudinal member, and the side wall 11b includes an outer wall 113 and an inner wall 114 that are substantially parallel to each other along the longitudinal direction, and a plurality of connecting arms 115 disposed between the outer wall 113 and the inner wall 114, wherein the outer wall 113 is elastically deformable inward in the lateral direction relative to the inner wall 114. The common characteristics of the two side walls 11a and 11b need to have a certain width, the width can at least realize the limit clamping part 24 of the driving arm connecting part 2a to be mutually abutted and limited and matched with the side walls, but the side wall 11a adopts a solid component, so the distance adjusting allowance between the outer end surfaces of the two side walls 11a is smaller, the requirement on the processing precision is higher, otherwise if the distance between the outer end surfaces of the two side walls 11a is too small, when the adapter 1a is integrally inserted into the driving arm connecting part 2a, the two side walls are easy to generate a gap along the lateral matching direction, and the wiping quality of the windshield wiper is influenced; if the distance between the outer end surfaces of the two side walls 11a is too large, the adapter 1a as a whole cannot be inserted into the driving arm connecting portion 2a, and the two cannot be assembled. The side wall 11b of the latter has a longitudinal hollow design, and the outer wall 113 has a certain adjustment allowance inward along the lateral direction relative to the inner wall 114, so that the processing precision of the two side walls 11b of the adapter 1c can be reduced, and the adaptability of the adapter 1c is also improved, i.e. the adapter 1c can be adapted to the driving arm connecting part 2a with a certain processing error, for example, the distance between the two side walls 21 of the driving arm connecting part 2a is slightly smaller than the standard design size, and the outer end face of the outer wall 113 is squeezed by the inner end faces of the two side walls 21 of the driving arm connecting part 2a, so that the outer wall 113 of the adapter 1c is elastically deformed inward, and the adapter 1c is tightly connected with the driving arm connecting part 2 a. Meanwhile, in order to reduce the difficulty of processing the flatness of the outer end surfaces of the side walls 11a and 11b, the present invention provides a technical teaching that a plurality of positioning protrusions 116 (as shown in fig. 3-4) are symmetrically and convexly provided on the outer end surfaces (outer walls 113) of the two side walls 11b, and the side walls 11a can also form a schematic diagram (not shown) of the positioning protrusions, wherein the side walls 11b are designed to be more preferable by using longitudinal members with hollow inner cavities, as shown in fig. 3-4 to 3-6, the positioning protrusions 116 include first positioning protrusions 116a which are not easily elastically deformed and second positioning protrusions 116b which are easily elastically deformed, the first positioning protrusions 116a are provided in the overlapping or adjacent region of the outer walls 113 and the connecting arms 115, so as to ensure that the first positioning protrusions 116a are not easily elastically deformed by the effective support of the connecting arms 115, the second positioning protrusions 116b are provided in the region (the elastically deformed region) where the outer walls 113 are not overlapped with the connecting arms 115 and are properly away from the connecting arms 115, at least in the region, the second positioning protrusion 116b is more easily elastically deformed than the first positioning protrusion 116a, and meanwhile, in order to further increase the elastic deformation amount of the second positioning protrusion 116b, a plurality of hollow-out grooves 117 are formed in the region of the outer wall 113 adjacent to the second positioning protrusion 116b, and the distance W4 between the outer end faces of the two first positioning protrusions 116a is less than the distance W5 between the outer end faces of the two second positioning protrusions 116b, through the above design, as long as the distance between the inner end faces of the two side walls 21 of the driving arm connecting portion 2a is between [ W4, W5 ], even slightly larger than W5, the abutting fit between the outer end faces of the two side walls 11b of the adapter 1c can be realized; more preferably, the difference between the distance W5 between the outer end faces of the two second positioning protrusions 116b and the distance W4 between the outer end faces of the two first positioning protrusions 116a is divided by 2 to be less than or equal to the maximum elastic displacement offset distance generated by the second positioning protrusions 116b in the lateral direction caused by the external force, wherein the maximum elastic displacement offset distance is a critical value of the elastic deformation region of the corresponding outer wall of the second positioning protrusion 116b in the lateral direction caused by the external force.

As shown in fig. 3-1 to 3-4, the front portion of the longitudinal body forms a receding portion E for the front end of the driving arm connecting portion 2a to swing downward, the receding portion E is formed by gradually increasing the height of the front portions of the two side walls 11 from front to back, so that the top wall 12 (front portion) horizontally disposed between the front portions of the two side walls 11 forms a receding inclined surface 122 with gradually increasing height from front to back, the top wall 12 (middle and rear portion) forms a bearing support surface 121 from the high position G of the receding inclined surface 122 toward back in the longitudinal direction, it can be understood that the top wall 12 of the present invention is formed by the receding inclined surface 122 and the bearing support surface 121 engaged with the high position G of the receding inclined surface 122, and the bearing support surface 121 is at least partially located at the front end of the pivot connecting portion (protruding shaft) 13, more preferably, the distance X between the high position G of the receding inclined surface 12 and the rotation axis of the protruding shaft 13 in the longitudinal direction is 4mm to 7mm, when the driving arm connecting portion 2a and the adapter 1a are fitted and fitted with each other, at least a part of the downward pressure applied by the upper wall 22 of the driving arm connecting portion 2a to the bearing support surface 121 of the top wall 12 of the adapter 1a is located at the front end of the protruding shaft 13 of the adapter 1a, so as to prevent the front end of the adapter 1a from upwarping, further prevent the limit bump 14 of the adapter 1a from being separated from the limit through hole 23 of the driving arm connecting portion 2a, and increase the stability of connection between the adapter 1a and the driving arm connecting portion 2 a.

The rear section of the side walls 11a, 11B forms a yielding section a, the side walls 11a, 11B form a yielding guide slope 112 with gradually increasing height from front to back on the bottom end surface in the region of the yielding section a, a yielding space B is formed below the yielding guide slope 112, when the limiting clamping parts 24a bent inwards at the bottoms of the two side walls 21 of the driving arm connecting part 2a are inserted into the yielding space B along the yielding guide slope 112, the rear end of the driving arm connecting part 2a is driven to upwarp, so that the limiting through hole 23 of the upper wall 22 can cross the limiting bump 14 at the rear end of the adapter top wall 12, the bottom end surfaces of the side walls 11a, 11B form at least one section of first clamping surface 111 at the front end of the guide slope 112, and the bottom end surfaces of the side walls 11a, 11B form a prying part F at the joint of the yielding guide slope 112 and the first clamping surface 111; it should be noted that, if the side wall 11a is a solid member (as shown in fig. 3-1), the first locking surface 111, the guiding inclined surface 112 and the prying portion F are all directly disposed on the bottom end surface of the side wall 11a, and if the side wall 11b is a longitudinal hollow member (as shown in fig. 3-4), the first locking surface 111, the guiding inclined surface 112 and the prying portion F are directly disposed on the bottom end surface of the outer side wall 113, and the height of the inner wall 114 is greater than the height of the outer wall 113, so that once the pivotal connection seats of the wiper blade support assembly are fitted to each other, the larger the fitting area between the inner wall 114 and the two side walls of the pivotal connection seats is (not shown), the relative displacement between the adaptor 1c and the pivotal connection seats in the lateral direction is reduced, and the stability of connection between the two is improved.

As shown in fig. 3 to 11, the high position G of the escape portion E is located at the front end of the levering portion F, the shortest straight distance W1 from the high position G of the escape portion E to the levering portion F is greater than the shortest straight distance W3 from the high position G of the escape portion E to the bottom end surface of the first locking surface 111, and the shortest straight distance W2 between the inner end surface of the upper wall 22 of the drive arm connecting portion 2a and the upper inner wall of the stopper locking portion 24a is substantially equal to the shortest straight distance W3 from the high position G of the escape portion E to the bottom end surface of the first locking surface 111. With the above arrangement, when the driving arm connecting portion 2a is sleeved along the adaptor 1c from back to front, the limit clamping portion 24a is inserted into the levering portion F in a sliding manner along the guiding slope 112, the inner side end surface of the upper wall 22 of the driving arm connecting portion 2a abuts against the front end J of the top of the limit projection 14 and the high position G of the abdicating portion E, respectively, and the height of the outer wall 113 in the area of the first clamping surface 111 is higher than the height of the connecting arm 115, and the height difference H (as shown in fig. 3-5) formed between the first clamping surface 111 and the connecting arm 115 is due to the adaptor being made of plastic material and having a certain deformation margin, so that when the inner side end surface of the upper wall 22 of the driving arm connecting portion 2a and the upper inner wall of the limit clamping portion 24a abut against the high position G of the extrusingating portion E and the levering portion F, respectively, and displace toward the direction of the first clamping surface 111, the levering portion F and the upper inner wall of the limit clamping portion 24a of the driving arm connecting portion 2a are in interference fit, this difference in height H is convenient for prying portion F to produce towards the plastic deformation of linking arm 115 bottom end face, passes through prying portion F until the last inner wall of the spacing joint portion 24a of actuating arm connecting portion 2a, and the last inner wall of its spacing joint portion 24a produces transition fit with first clamping surface 111 to be convenient for adapter 1c installs to the inner of actuating arm connecting portion 2 a.

The top wall 12 is provided with a downward extending elastic cantilever 15 at the rear end of the relief section a and at both sides in the lateral direction, the distance M between the outer end faces of the rod sections of the two elastic cantilevers 15 is smaller than the distance N between the outer end faces of the two side walls 11a, 11b, the free end of the elastic cantilever 15 extends outward to form a second clamping surface 151, and the second clamping surface 151 is substantially opposite to and flush with the first clamping surface 111 in the longitudinal direction; meanwhile, the rod body section of the elastic cantilever 15 is positioned at the upper part of the second clamping surface 151 to form a guide surface 152, and the guide surface 152 is convenient for the limiting clamping part 24a of the driving arm connecting part 2a to automatically drive the elastic cantilever 15 to generate position deviation inwards when the limiting clamping part 24a is abutted and contacted with the driving arm connecting part from top to bottom; more preferably, the elastic cantilever 15 extends outwards along the lateral direction from the lower end of the second locking surface 151 to the pressing portion 154, the distance between the top surface of the pressing portion 154 and the second locking surface 151 is greater than or equal to the thickness of the limit clip portion 24a of the driving arm connecting portion 2a, so that the limit clip portion 24a of the driving arm connecting portion 2a can be inserted into the limit space formed between the top surface of the pressing portion 154 and the second locking surface 151, and the pressing portion 154 is designed to facilitate a user to press the pressing portion 154, so that the free end of the elastic cantilever 15 is elastically deformed inwards to cause the position of the second locking surface 151 to deviate. In fact, the elastic cantilever 15 is not limited to be disposed on both sides of the top wall 12, but may be extended from the side wall 11 to the rear end thereof, and a second latching surface (not shown) is disposed on the free end of the elastic cantilever. Because the second block face 151 supports each other with spacing joint portion 24a of actuating arm connecting portion 2a and leans on when contacting, elastic cantilever 15 can receive ascending effort, sets up elastic cantilever 15 on the roof, and its atress direction is direct to elastic cantilever 15's stiff end, compares in the rear end with elastic cantilever setting at the lateral wall, and elastic cantilever 15 of the former design is under the condition of the same atress, the elastic deformation of bending inwards more difficult.

In a more preferable design, as shown in fig. 3-3, 3-4, and 3-6, the elastic cantilever 15 of the adaptor 1b, 1C is provided with a bearing support portion C spaced outward in the lateral direction, the bearing support portion C is located above the second locking surface 151, one end of the bearing support portion C is connected to the rear end of the side wall 11a, 11b, the other end is fixed to the rear end of the top wall 12, and a loading and unloading channel D for inserting a limit clamping portion 24a bent inward at the bottom of the two side walls 21 of the driving arm connecting portion 2a is formed at least below the bearing support portion C and above the second locking surface 151, the outer end surface of the bearing support portion C is flush with the outer end surface of the corresponding side wall 11, and the abutting contact area between the outer end surface of the side wall 11a, 11b and the inner end surface of the two side walls 21 of the driving arm connecting portion 2a is substantially extended by adding the bearing support portion C, the stability of the connection of the adapters 1b, 1c, 1d to the drive arm connecting portion 2a is increased.

Preferably, as shown in fig. 3-4, the adaptor 1c further forms a protruding decoration cover 16 at the front end of the longitudinal body, the decoration cover 16 forms a limit rib 161 matching with the contour of the front end surface of the driving arm connecting portion 2a at least on the side facing the driving arm connecting portion 2a, the decoration cover 16 extends a section of guide rib 163 at the bottom end facing the outer end surfaces of the two side walls 11, the guide rib 163 is located in front of the first locking surface 111, and the decoration cover 16 is mainly used for matching with the contour of the front end wall of the driving arm connecting portion 2a together the limit rib 161 and the guide rib 163 of the decoration cover 16 of the adaptor 1c after the driving arm connecting portion 2a is assembled to the adaptor 1c, so that the adaptor 1c and the driving arm connecting portion 2a form an aesthetic seal.

Taking the adapter 1C as an example to specifically explain the working principle of the installation/disassembly of the adapter and the driving arm connecting part 2a, as shown in fig. 3-8, firstly, the driving arm connecting part 2a is placed at the rear end of the adapter 1C along the longitudinal direction, and the limiting clamping part 24a is opposite to the loading and unloading channel D below the bearing and supporting part C of the adapter 1C; as shown in fig. 3-9 to fig. 3-11, the limiting clamping portion 24a of the driving arm connecting portion 2a is sequentially inserted into the loading and unloading channel D and the abdicating space B from back to front along the longitudinal direction, and the limiting clamping portion 24a is inserted along the abdicating guide slope 112 of the outer wall 113 until the upper inner wall of the front end of the limiting clamping portion 24a abuts against the prying portion F, at this time, the rear end of the driving arm connecting portion 2a tilts upward, the limiting through hole 23 of the upper wall 22 just passes over the limiting bump 14, and meanwhile, the abdicating portion E is formed at the front part of the longitudinal body of the adapter 1c, so that when the front end of the driving arm connecting portion 2a swings downward, the front end wall of the driving arm connecting portion 2a does not abut against the top wall 12 of the adapter 1 c; referring to fig. 3-12, the limiting latch portion 24a of the driving arm connecting portion 2a is then pressed downward with the levering portion F as a rotation fulcrum, so that the limiting through hole 23 is sleeved on the limiting projection 14, the rear end of the limiting latch portion 24a abuts against the guide surface 152 of the elastic cantilever 15, the elastic cantilever 15 is driven to bend and elastically deform inward, the second latch surface 151 is displaced until the rear end of the limiting latch portion 24a sequentially passes over the guide surface 152 and the second latch surface 151 downward, the elastic cantilever 15 elastically returns to the original position, so that the rear end of the limiting latch portion 24a is latched on the second latch surface 151, the upper inner wall of the rear end of the limiting latch portion 24a is opposite to the second latch surface 151, the upper inner wall of the front end of the limiting latch portion 24a is opposite to the first latch surface 111, and the first latch surface 111 and the second latch surface 151 are respectively abutted against the front end and the rear end of the upper inner wall of the limiting latch portion 24a, thereby restriction actuating arm connecting portion 2a and adapter 1c produce relative displacement along vertical direction is upwards, through the card between spacing lug 14 and the spacing through-hole 23 of actuating arm connecting portion 2a put the cooperation, restriction actuating arm connecting portion 2a and adapter 1c along the production relative displacement of longitudinal direction to realize the installation of actuating arm connecting portion 2a and adapter 1 c. When the driving arm connecting portion 2a needs to be detached from the adaptor 1c, the second clamping face 151 is separated from the abutting contact of the limiting clamping portion 24a only by pressing the pressing portion 154 with a hand, and the driving arm connecting portion 2a is reversely operated along the assembling sequence, so that the detachment of the driving arm connecting portion 2a and the limiting clamping portion can be realized.

Example two

The present invention also discloses an embodiment of an adapter 1d, whose structure is substantially the same as that of the adapter 1c after the optimized design disclosed in the first embodiment, but because the adapters disclosed in the present invention need to add a relief portion E at the front of the longitudinal body, so that the front of the top wall 12 forms a relief slope 122, when the adapters are fitted with the driving arm connecting portions 2a, a gap is formed between the outer end surface of the front of the top wall 12 of the adapter and the inner end surface of the front of the upper wall 22 of the driving arm connecting portion 2a, and after the adapters are fitted with the driving arm connecting portions 2a, the inner end surface of the front of the upper wall 22 of the connecting portion 2a can be effectively supported at the gap, and the design is more preferable, as shown in fig. 3-7 and fig. 3-8, the adapter 1d further adds an elastic stopping portion 17 between the decorative cover 16 and the relief portion E, the top surface of the decorative cover 16 is formed with a hollow-out relief portion 162 at one end facing the relief portion E, the elastic stopping portion 17 includes a U-shaped bent body 172, the fixed end of the U-shaped bent body 172 is fixed to the inner end wall of the decorative cover 16, the free end of the U-shaped bent body extends horizontally backward along the longitudinal direction to form a stopping surface 171, the stopping surface 171 is substantially flush with the bearing and supporting surface 121 of the top wall 12, and the stopping surface 171 can shift forward along the longitudinal direction, a guiding inclined surface 173 is formed below the stopping surface 171, when the driving arm connecting portion 2a is mounted to the adaptor 1d, the front end wall 221 of the driving arm connecting portion 2a abuts against the guiding inclined surface 173, the elastic stopping portion 17 is driven to elastically deform forward, so that the stopping surface 171 shifts, when the driving arm connecting portion 2a is mounted in place, the front end wall 221 of the driving arm connecting portion 2a crosses the guiding inclined surface 173, the elastic stopping part 17 elastically resets to enable the inner side end face of the front end of the upper wall 22 of the driving arm connecting part 2a to abut against the abutting face 171, so that the stability of connection between the adapter 1d and the driving arm connecting part 2a is further improved; when the driving arm connecting portion 2a needs to be detached from the adaptor 1d, in addition to the pressing portion 154 needs to be pressed, the free end of the elastic stopper 17 needs to be pushed forward by hand, so that the abutting surface 171 is detached from the abutting contact of the inner end surface of the front end of the upper wall 22 of the driving arm connecting portion 2a, and the driving arm connecting portion 2a is detached from the adaptor 1 d.

The present invention also discloses a windshield wiper (not shown in the figures), which comprises any of the adapters 1a, 1b, 1c, 1d disclosed above, wherein the adapters 1a, 1b, 1c, 1d are used for connecting the windshield wiper support assembly with the driving arm connecting parts 2a, 2b, i.e. the most obvious difference between the windshield wiper of the type and the traditional windshield wiper is that the adapters 1a, 1b, 1c, 1d are adopted, the structure of the windshield wiper support assembly used is the structural feature known by those skilled in the art, and the traditional known technology is about how to mount the adapters 1a, 1b, 1c, 1d to the windshield wiper support assembly, generally, the pivot connecting parts 13 of the adapters 1a, 1b, 1c, 1d are hinged to the pivot connecting seats of the windshield wiper support assembly, so that the driving arm connecting parts 2a, 2b together with the adapters 1a, 1b, 1c, and 1d swing clockwise or counterclockwise with the pivot connection portion 13 as a rotation fulcrum.